MINE CLOSURE Examples, Version 2, 2013 TOOLBOX
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MINE CLOSURE
Examples, Version 2, 2013
TOOLBOX
TOOL 1 CONTINUED
i ANGLO AMERICAN MINE CLOSURE TOOLBOX
FOREWORDAnglo American seeks to be the investment of choice, the partner of choice and employer of choice. This means being the preferred development partner to communities and governments, and employer of choice in our areas of operation. We firmly believe that, together we create sustainable value that makes a real difference.
Mining plays a significant role in human and economic development and, without the mining sector, society would not enjoy a large number of the benefits that it does today. The mining industry’s rich history also carries some important lessons and one of these lessons is the poor closure or abandonment of mines by the industry worldwide. If Anglo American is to achieve its ambition we must ensure that we leave a positive and sustainable legacy for our host communities after our operations have closed.
The Anglo American Mine Closure Toolbox details what is needed to achieve that goal. Since its official launch in 2008 it is now used throughout Anglo American’s managed operations and also at some of our non-managed operations in partnership with other mining companies.
The updated Mine Closure Toolbox aims to further improve the quality of our closure planning. It increases the emphasis on the importance of designing, planning and operating a mine with closure in mind. Aimed at the people in our operations, the tool provides practical support as to how to achieve this outcome. It is also important that a preferred future for the mine is developed in close consultation with communities. The tool reinforces our desire for improved community relationships and engagement. Some of the more immediate benefits from our updated Mine Closure Toolbox can be lower closure liabilities, lower rehabilitation costs and more effective social investment and engagement. The toolbox’s integrated approach includes all aspects of a mine’s closure: from the dismantling of machinery, the potential environmental and social impacts after closure through to the overall costs of closure.
The Mine Closure Toolbox, which is available in English, Spanish and Portuguese, is designed to be used in conjunction with our award-winning Socio-Economic Assessment Toolbox (SEAT 3) to support an integrated approach to risk assessment and sustainable development planning. It can also be used in project development and planning, to ensure that brownfield and greenfield sites are planned and designed with closure in mind.
Together, we create sustainable value that makes a real difference.
Mark CutifaniChief ExecutiveAugust 2013
1ANGLO AMERICAN MINE CLOSURE TOOLBOX
CONTENTSFOREWORD i
ACKNOWLEDGEMENTS 1
CONTENTS 1
EXAMPLE 1: PHYSICAL CLOSURE COST CALCULATION SPREADSHEET AND DRAWINGS 2INTRODUCTION 3
CRITERIA FOR MINE CLOSURE COSTING 3
MINE CLOSURE ASSUMPTIONS FOR ESTIMATION OF CLOSURE COSTS 4
Mine A: Sheet A 5
Mine A: Sheet B 6
Mine A: Closure Cost Estimate Spreadsheet 7
EXAMPLE 2: COMPLETED GAP ANALYSIS AND ACTION PLAN USING TOOL 1, 2 & 3 13
INTRODUCTION 14
CURRENT STATUS OF MINE CLOSURE PLANNING 14
PROJECT PHASE 1: PRELIMINARY CLOSURE PLAN DEVELOPMENT 15
PROJECT PHASE 2: FINAL CLOSURE PLAN DEVELOPMENT 17
CONCLUSION 19
Appendix A: Gap Analysis Spreadsheet – 5 June 2007 20
Appendix B: Project Phase 1 & 2: Preliminary and Final Closure Plan Programme 40
EXAMPLE 3: COMPLETED RISK ASSESSMENT 46
INTRODUCTION 47
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT 48
ACKNOWLEDGEMENTS
The original report “Version 1, 2007” was developed by Peter Coombes and Rudolph Botha from the then Anglo Technical Division, with the valuable inputs and contributions from Duncan Cameron, Karin Ireton and Jonathan Samuel.
This second version of the Mine Closure Toolbox has been developed by Rudolph Botha of Anglo American’s Technical Solutions with the support and inputs of various Anglo American technical resources.
In addition to those who played a role in the development of Version 1, 2007, the author acknowledges the support and assistance of the following individuals who made valuable contributions to the development of this updated toolbox:
Human Resources: Jeanne Louw & Chris Botha
Health: Claudina Nogueira & Frank Fox
Government & Social Affairs: Jonathan Samuel
Mine Closure: Mark Aken, Charl Klynsmith & Ralton Maree
General: Samantha Hoe-Richardson & Peter Gunther
Finally, the author would like to thank the various individuals across the Group who provided comment, examples and factual data since the launch of Version 1, 2007 for incorporation into this revised document.
The Toolbox is designed as an internal guidance document to assist operations and projects in the development of their mine closure plans.
Developed for Anglo American by Rudolph Botha, Anglo American’s Technical Solutions
For more information contact:
Mr Rudolph BothaManager: Sustainable Development and Civil EngineeringAnglo American’s Technical Solutions45 Main StreetJohannesburg, [email protected] Telephone: +27 11 638 2254Fax: +27 11 367 3273
or
Mr Peter GuntherGroup Manager: Environment45 Main StreetJohannesburg, [email protected]: +27 11 638 5332
Published by Anglo American plcDesigned and produced by CreativityPrinted by Ultra Digital
2 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE 1: PHYSICAL CLOSURE COST CALCULATION SPREADSHEET AND DRAWINGS
3ANGLO AMERICAN MINE CLOSURE TOOLBOX
INTRODUCTIONMine A is a mine situated in Botswana that has a remaining life of mine of just less than 25 years. The closure estimate required for this mine is a Class 0 estimate (-25 to +35%). Pages 3 in this document list the closure criteria and page 4 lists the assumptions that were made in estimating the closure cost. The final life of mine (LOM) closure cost was determined, taking into consideration ongoing rehabilitation throughout the operational phase of the mine.
CRITERIA FOR MINE CLOSURE COSTINGThe following risk based criteria were used to estimate the closure cost:
• Return of land to its pre-mining land capability where possible
• Facilities that remain – making the area safe for both humans and animals
• Facilities that remain will be made stable and sustainable. In other words, they should not move with time
• Removal of all structures and infrastructure other than the waste rock dumps, the tailings dumps, and the slimes/slurry dams
• Waste rock dumps will remain post-closure
• The waste rock dumps will be shaped during the operational phase to prevent storm water from flowing over the sides of the dumps. These dumps will not be vegetated
• The tailings dumps will remain post-closure
• The tailings dump top surface will be shaped during the operational phase to control storm water. As part of the operating costs, storm water control measures such as paddocking will be installed to retain and evaporate the storm water on the top, and to prevent post-closure erosion due to concentrated runoff
• The tailings dump side slopes will be flattened (cut to fill) during the operational phase to a slope of 1v:3h and 300 mm of waste rock cladding will be placed on the side slopes during the closure phase for erosion protection during the post-closure phase
• The open pit will remain post-closure with the necessary storm water control measures in place to ensure slope stability
• The slimes and slurry dams will be rehabilitated and vegetated on closure
• Remove all assets
• Demolish all remaining infrastructure
• Removal and/or burying all rubble and waste in a designated waste site, excluding waste rock dump and tailings dump and slimes/slurry dam materials
• Engineering works (re-shaping, earthworks, drainage etc.)
• Rehabilitation of all disturbed land surfaces, i.e. rip, topsoil if sufficient topsoil is available and re-vegetate, including the slimes/slurry dams but excluding tailings dumps and waste rock dumps
• All vehicles, plant and workshop equipment will be removed for salvage or resale
• All fixed assets that can be profitably removed will be removed for salvage or resale
• Any item that has no salvage value to the mine, but could be of value to individuals, will be sold (zero salvage assumed in cost estimation) and the remaining treated as waste and dumped in the open pit
• All structures will be demolished and terracing and foundations removed to the lesser of 500 mm below the original ground level
• The excavations will be filled in with soil, the top 150 mm being topsoil
• Unpaved roads will be ripped and shaped to restore the natural contours as far as possible
• Paved roads will be ripped up, the wearing course treated as waste and the sub-base ripped or ploughed and covered with 150 mm topsoil
• Inert ceramics, such as bricks, concrete, gravel etc., will be dumped in the pit, subject to approval by the Waste Management authority
• Inert waste, which is more than 500 mm underground, such as pipes, will be left in place
• Inert ceramic and buried waste with a salvage value to individuals, such as scrap metal, building materials, etc., will be removed and disposed of at a proper facility elsewhere in the country
• All disturbed and exposed surfaces will be covered with at least 150 mm of topsoil and re-vegetation must be allowed to take place naturally
• Air and water quality will be monitored until they reach a steady state after closure
• Dismantle and remove redundant fence for salvage
• Demolish all concrete fence foundations to 500 mm below the original ground level
• Plough or rip fence lines and cover with topsoil where necessary
• The company contracted to supply fuel will be requested to remove all fuel storage and reticulation facilities
• The pit area will be fenced off and shaped to drain inwards
• Ensure the slopes of the open pit are safe in the long term
• Remove pumping equipment from disused boreholes and install a concrete cap/seal at the top of the collar
• Remove fencing around disused boreholes
• Remove electricity supply lines to mining related operations,
4 ANGLO AMERICAN TOOLBOX
plough access roads, demolish and backfill pipeline chambers and reservoirs
• Submission of closure report and application for closure to the authorities
• Environmental monitoring and maintenance for at least 5 years after closure
MINE CLOSURE ASSUMPTIONS FOR ESTIMATION OF CLOSURE COSTS The following assumptions were made:
• The values for the resale of equipment and salvable material were not considered
• Average haul distance will be 2.5 km within the lease
• A hazardous disposal site will not be constructed and all hazardous waste will be removed from site and transported to the nearest licensed facility
• All services related to the well fields, water supply lines and storage on site may have to be demolished; the closure cost is therefore included in this estimate
• The waste rock dumps will not be rehabilitated except for demolition of possible concrete structures (no topsoil or vegetation) and shaping to prevent erosion (the shaping will be done during the operational phase). A berm will be constructed at the toe of the waste rock dumps and some topsoil placed against the toe (10 m high) to facilitate potential natural vegetation
• The tailings dump sides will be shaped to 1v:3h during the operational phase and cladded with 300 mm of waste rock on the side slopes during the closure phase, to prevent erosion during the post-closure phase
• The tailings dump top surface will be shaped during the operational phase to control storm water. As part of the operating costs, storm water control measures, such as paddocking, will be installed to retain and evaporate the storm water on the top and to prevent post-closure erosion due to concentrated runoff
• Slimes dams will be rehabilitated and vegetated by means of flattening the slopes to 1v:3h using waste rock/calcrete and covering this layer with 150 mm of topsoil and sub-dividing the top surface into paddocks (50 m x 50 m grid) to control storm water, and covering the top surfaces with a 150 mm layer of topsoil
• Slurry dams will be rehabilitated and vegetated by means of cladding the slopes with a 300 mm waste rock/calcrete layer and covering it with 150 mm of topsoil and sub-dividing the top surface into paddocks (50 m x 50 m grid) to control storm water, and covering the top surfaces with a 150 mm layer of topsoil. Bulk earth works will not be required on the sides, as the slopes are already 1v:3h
• There will be no ring-main at the pit and the de-watering boreholes will be decommissioned
• It is assumed that the post-mining pit stability will be addressed as part of the operation and necessary remedial actions implemented prior to closure
• No rehabilitation will be done inside the pit, except for ripping of the haul road to facilitate the growth of natural vegetation
• The tailings and waste rock dumps and slurry dams will not exceed the planned area footprint
• Borrow pits used for construction of slimes dam walls that are situated outside the slimes dam footprint will be rehabilitated during the operational phase (flatten slopes to 1v:3h or flatter and allow to vegetate naturally)
• The airfield (including all the structures) will be closed, and the runway ripped to facilitate vegetation
• The game park will remain and will be run by a third party under licence from the Department of Wildlife and National Parks
• The golf course will require minimal rehabilitation
• The Township will not extend beyond the current development plan
• The Township will be demolished and the areas rehabilitated
• No allowances were made for P&Gs and contingency (based on the mine doing the work)
• There is sufficient topsoil for rehabilitation purposes
• Where topsoil is not available, the cost for in-situ remediation will be the same as the estimate for top soiling
• Only power lines beyond the BPC substation will be demolished (excluding the main feed line to the nearby village)
• A Pula/Rand exchange rate of 1.22 has been used
The closure costs for the various well fields and associated infrastructure have been included in this estimate, even though they may well remain and be handed over to the Department of Water Affairs (DWA), to augment water supply to villages and other areas. In the latter case, DWA or the Central District will become responsible for their maintenance.
EXAMPLE 1: PHYSICAL CLOSURE COST CALCULATION SPREADSHEET AND DRAWINGS CONTINUED
5ANGLO AMERICAN MINE CLOSURE TOOLBOX
MINE A : SHEET A
6 ANGLO AMERICAN MINE CLOSURE TOOLBOX
MINE A: SHEET B
7ANGLO AMERICAN MINE CLOSURE TOOLBOX
MINE A: CLOSURE COST ESTIMATE SPREADSHEET
ITEM DESCRIPTION METHOD OF RATE ESTIMATE UNIT Cost (PULA) Transport Average Rate August '04 Rate
COST (PULA) COST (PULA) COST (PULA) COST (PULA) COST (PULA)
RATES COMPARING ACTUAL PLUS PROPOSAL RATES 5.17
Demolition of steel structures (No dismantling) Proposal - Contractor "A"m 3 200.00 1,005.17
Demolition of steel structures (No dismantling) Proposal - Contractor "C"m 3 100.00 505.17 1,597.67 940.17 974.89 980.00Demolition of steel structures (With dismantling) Proposal -Contractor "B"m 34 ,000.00 4,005.17
Demolition of steel structures (With dismantling) Escalated Rate m3 870.00 875.17
Demolition of reinforced concrete Proposal - Contractor "A"m 3 400.00 405.17
Demolition of reinforced concrete Proposal - Contractor "B"m 3 500.00 505.17
Demolition of reinforced concrete Proposal -Contractor "C"m 3 200.00 205.17 352.67 350.17 363.10 370.00Demolition of reinforced concrete Escalated Rate m3 290.00 295.17
Demolition of unreinforced concrete Proposal - Contractor "A"m 3 300.00 305.17
Demolition of unreinforced concrete Proposal - Contractor "B"m 3 400.00 405.17 269.54 263.92 273.66 280.00Demolition of unreinforced concrete Proposal -Contractor "C"m 3 140.00 145.17
Demolition of unreinforced concrete Escalated Rate m3 217.50 222.67
Demolition of brickwork (double) Proposal - Contractor "A"m 2 50.00 51.19
Demolition of brickwork (double) Proposal - Contractor "B"m 2 400.00 401.19 155.44 66.19 68.63 70.00Demolition of brickwork (double) Proposal -Contractor "C"m 2 80.00 81.19
Demolition of brickwork (double) Escalated Rate m2 87.00 88.19
Demolition of fencing Proposal - Contractor "A"m 50.00
Demolition of fencing Proposal - Contractor "B"m 20.00
Demolition of fencing Proposal -Contractor "C"m 1.00 18.84 12.18 12.62 13.00Demolition of fencing Escalated Rate m4 .35
Excavation Proposal - Contractor "A"m 3 20.00 25.17
Excavation Proposal - Contractor "B"m 3 25.00 30.17 23.31 24.95 25.88 26.00Excavation Proposal -Contractor "C"m 38 .00 13.17
Excavation Escalated Rate m3 19.58 24.74
Backfill Proposal - Contractor "A"m 3-
Backfill Proposal - Contractor "B"m 3 40.00 45.17
Backfill Proposal -Contractor "C"m 38 .00 13.17 61.92 29.17 30.24 31.00Backfill (Supply material) Escalated Rate m3 137.75 142.92
Landscaping (Cut to fill) - 300mm Proposal - Contractor "A"h a 30,000.00
Landscaping (Cut to fill) - 300mm Proposal - Contractor "B"h a 35,000.00
Landscaping (Cut to fill) - 300mm Proposal -Contractor "C"h a2 ,500.00 25,647.50 32,500.00 33,700.34 34,000.00Landscaping (Cut to fill) - 500mm Escalated Rate m3 35,090.00
Rehabilitation (topsoil spreading 75mm) Proposal - Contractor "A"h a 15,000.00 37,750.00
Rehabilitation (topsoil spreading 75mm) Proposal - Contractor "B"h a 15,000.00 37,750.00 31,317.87 33,385.74 34,618.79 35,000.00Rehabilitation (topsoil spreading 75mm) Proposal -Contractor "C"h a6 ,500.00 20,750.00
Rehabilitation (topsoil spreading 150mm) + 2.5km haul Escalated Rate ha 27,985.00 29,021.48
Transport Rate Proposal - Contractor "A"m 3km 2.50
Transport Rate Proposal - Contractor "B"m 3km 2.20
Transport Rate Proposal -Contractor "C"m 3km 1.50 2.07 2.07 2.14 2.20Transport Rate Escalated Rate m3km 2.90
Removal of Cladding Proposal - Contractor "D"m 27 .507 .507 .50 7.50Proposal - Contractor "E"m 25 .00
Mini Subs Proposal - Contractor "D" item1 ,750.00 2,500.00 2,500.00Proposal - Contractor "E" item2 ,500.00
Borehole capping Proposal - Contractor "D" item 45.00 45.00 45.00Proposal - Contractor "E" item 25.00 25.00
Light Poles Proposal - Contractor "D" item 150.00 150.00 150.00
Rock cladding (.3m thick) Proposal - Contractor "D"m 2 65.00 55.00 55.00Proposal - Contractor "ECMP" 45.00
paddock grid on top of tailings & slimes/slurry dams Proposal - Contractor "D"m 22 .002 .00 2.00(50 X 50m paddocks)
Break and Backfill Manholes Proposal - Contractor "D"N o 500.00 500.00 500.00
Prefabricated Buildings Proposal - Contractor "D"N o5 ,000.00 5,000.00 5,000.00
MINE AESTIMATED MINE CLOSURE COST
REPORT SUMMARY SHEETUsed Rate
(PROPOSAL, ESCALATED OR ESTIMATED)
Escalated rate (185.3/178.7) Apr' 05
8 ANGLO AMERICAN MINE CLOSURE TOOLBOX
MINE CLOSURE ESTIMATE SPREADSHEET CONTINUED
ITEM DESCRIPTION METHOD OF RATE ESTIMATE UNIT COST (PULA) Aug 04 ADJUSTED PULA 1.22 / 1.4 April '05 Rate RATE USED
ESCALATED0 .87 COST (PULA) COST (PULA)
ESCALATED RATES
Remove concrete sleepers Escalated No 5.71 6.55 1.0369 6.79 6.80
Remove steel tanks (1 to 2 dia) Estimated No 227.14 260.65 1.0369 270.28 270.00Remove steel tanks (2 to 2.5 dia) Estimated No 2,271.43 2,606.56 1.0369 2,702.83 2,700.00Remove steel tanks (3.0 to 4.0 dia) Estimated No 3,028.57 3,475.41 1.0369 3,603.77 3,600.00Remove steel tanks (4.5 to 6.0 dia) Estimated No 6,057.14 6,950.82 1.0369 7,207.53 7,200.00
Remove gate Estimated No 75.71 86.88 1.0369 90.09 90.00Remove gate Estimated No 17.41 19.98 1.0369 20.72 21.00
Remove steel cabins (Porta) Estimated No 378.57 434.42 1.0369 450.47 450.00Remove steel cabins (Porta) Estimated No 757.14 868.85 1.0369 900.94 900.00
Powerline demolition (wooden single lines) Escalated km 21,750.00 24,959.02 1.0369 25,880.84 26,000.00
Rip and Reshape Escalated m2 3.44 3.95 1.0369 4.09 4.10
Concrete Plug construction Escalated m3 3,047.50 3,497.13 1.0369 3,626.29 3,650.00
Dismantling boreholes and sewer pumps Estimated No 2,500.00 2,500.00 2,500.00
Steel piping Escalated m 29.41 33.75 1.0369 35.00 35.00
Concrete covers (150mm) Escalated No 68.69 78.82 1.0369 81.74 82.00
Liner removal Escalated m2 2.29 2.63 1.0369 2.72 2.75
RATES FROM REPORT
Vegetate m2 2.00 2.30 1.0369 2.38 2.40
*Slurry line removal (as steel pipes) m7 .008 .031 .0369 8.33 8.40
*Penstock sealing No 50,000.00 57,377.05 1.0369 59,496.18 60,000.00
*THESE RATES WERE OBTAINED FROM THE REPORT "CONCEPTUAL CLOSURE PLAN FOR OLD SLIMES DISPOSAL FACILITY"
THIS ESTIMATE EXCLUDES P&Gs & CONTINGENCY
THIS ESTIMATE IS BASED ON PROJECTED AUGUST 2004 RATES FACTORED BY ESCALATION FACTOR OF (185.3/178.7) BETWEEN AUGUST 2004 AND APRIL 2005
PULA / RAND EXCHANGE OF 1.22 WAS USED.
ESCALATIONFACTOR
SHEET No. CREDIT (PULA) COST (PULA) TOTALCOST (PULA)
MINE A 34,194,542.05
A 0.00 27,813,116.742 7,813,116.74
B 0.00 6,381,425.316 ,381,425.31
TOTAL DEMOLITION COST 6,489,606.42
TOTAL REHABILITATION COST 27,704,935.63
TOTAL 0.00 34,194,542.05 34,194,542.05
Rehabilitation/total = 81%
THIS ESTIMATE EXCLUDES P&Gs & CONTINGENCYTHIS ESTIMATE IS BASED ON AUGUST 2004 RATES ESCALATION BY A FACTOR OF (185.3/178.7) TO APRIL 2005THE ESTIMATE IS IN BOTSWANA PULA
MINE AESTIMATED MINE CLOSURE COST
REPORT SUMMARY SHEET
9ANGLO AMERICAN MINE CLOSURE TOOLBOX
MIN
E A
SHEE
TA
ESTI
MAT
ED M
INE
CLO
SUR
E C
OST
ITEM
No
DES
CR
IPTI
ON
CO
MM
ENTS
LEN
GTH
BR
EA
DTH
AR
EAH
EIG
HT
VOLU
ME
UN
ITK
EYR
ATE
CR
EDIT
CO
STSU
B-T
OTA
LTO
TAL
ASS
UM
PTIO
NS
mm
m2
mm
3Q
UA
NTI
TY(P
ula)
(Pul
a)C
OST
(Pul
a)C
OST
(Pul
a)D
AM
SA
ND
DU
MPS
1aE
xist
ing
Taili
ngs
Dum
p60
0m b
y 60
0m1
600.
0060
0.00
360,
000.
0050
.00
1bP
ropo
sed
taili
ngs
dum
p24
00m
by
250m
12,
400.
0035
0.00
840,
000.
0050
.00
3,00
0.00
950.
00
cut d
ump
side
s to
1 in
3 fa
llpu
sh o
ver t
ailin
gs m
ater
ial (
Par
t of o
pera
tiona
l cos
t) 50
% o
f vol
ume
(cut
to fi
ll)m
35,
036,
250.
000.
000.
000.
000.
00ro
ck fi
llal
low
for r
ock
clad
ding
alo
ng s
lopi
ng s
ide
- 300
mm
thic
km
337
4,46
0.00
31.0
00.
0011
,608
,260
.00
11,6
08,2
60.0
050
m x
50m
pad
dock
grid
(1m
2 re
tain
er b
erm
s)al
low
2m
bas
e by
1m
hig
h be
rms
for 0
.25h
a gr
id fo
rmat
ion
(par
t of o
pera
tiona
l cos
t)m
21,
200,
000.
000.
000.
000.
000.
00na
tura
l rev
eget
atio
nal
low
to re
vege
tate
nat
ural
lym
21,
200,
000.
000.
000.
000.
000.
00Su
b-to
tal
11,6
08,2
60.0
02(
a &
b)
Slu
rry
dam
1 &
2 c
ombi
ned
(sid
e sl
ope
1 in
3)
1200
m le
ngth
by
800m
wid
th1
1,00
0.00
800.
0080
0,00
0.00
30.0
03
Sto
rm w
ater
faci
litie
s6m
wid
e ba
se, 1
.6m
ht,
2m fl
at to
p be
rm (6
.4m
2) b
erm
120
0.00
180.
0036
,000
.00
Pip
elin
e re
mov
alm
3,60
0.00
8.40
0.00
30,2
40.0
030
,240
.00
Rem
oval
of e
arth
ber
m (s
torm
wat
er p
ond)
6.4m
3 pe
r run
ning
met
erm
32,
432.
0026
.00
0.00
63,2
32.0
063
,232
.00
Rem
oval
of l
inin
gal
low
20%
for l
inin
g on
ber
m p
lus
full
botto
m a
rea
m2
43,2
00.0
02.
750.
0011
8,80
0.00
118,
800.
00R
ock
fill o
f 300
mm
(sid
es o
nly)
Sid
es o
nly
m3
102,
600.
0031
.00
0.00
3,18
0,60
0.00
3,18
0,60
0.00
Tops
oil,
grow
ing
med
ium
allo
w fo
r 150
mm
of g
row
ing
med
ium
m3
1,17
8,00
0.00
3.50
0.00
4,12
3,00
0.00
4,12
3,00
0.00
50m
x 5
0m p
addo
ck g
rid (1
m2
reta
iner
ber
ms)
allo
w 2
m b
ase
by 1
m h
igh
berm
s fo
r 0.2
5ha
grid
form
atio
nm
280
0,00
0.00
2.00
0.00
1,60
0,00
0.00
1,60
0,00
0.00
Vege
tate
sid
es &
top
m2
1,17
8,00
0.00
2.40
0.00
2,82
7,20
0.00
2,82
7,20
0.00
Sub-
tota
l11
,943
,072
.00
RO
AD
S4a
,b,c
Gen
eral
gra
vel r
ds (1
4m w
ide)
plu
s H
aul R
oad
(40m
wid
e)30
0mm
ht.
7m w
ide,
hau
l roa
d 40
m w
ide
500m
long
out
side
pit
8,64
5.00
14.0
012
1,03
0.00
Rip
in s
itu m
ater
ial/l
ands
cape
m2
141,
030.
004.
100.
0057
8,22
3.00
578,
223.
00R
emov
al o
f roa
dsid
e lig
htin
gLi
ghts
at 2
5m c
entre
site
m34
5.80
150.
000.
0051
,870
.00
51,8
70.0
0Su
b-to
tal
630,
093.
005
Pipe
wor
kR
emov
e pi
pe w
ork
437m
x 5
no. P
ipe
(250
mm
dia
) 2,
185.
00m
2,18
5.00
5.00
0.00
10,9
25.0
010
,925
.00
Sub-
tota
l10
,925
.00
6La
ydow
n ar
ea (O
pen
spac
e)N
o re
habi
litat
ion
requ
ired
Dem
olis
h an
d di
spos
e of
ste
el a
nd e
quip
men
t R
emov
e pi
pe w
ork
7a,b
,cO
VER
HEA
D P
OW
ERLI
NES
(See
She
et H
- T
owns
hip)
FEN
CE
8aE
xist
ing
plus
pro
pose
d 2.
4m s
ecur
ity fe
nce
9500
m15
,500
.00
8bP
ropo
sed
fenc
e60
00m
Stri
p an
d re
mov
e fe
nce
from
site
m15
,500
.00
13.0
00.
0020
1,50
0.00
201,
500.
00Su
b-to
tal
201,
500.
00TO
PSO
IL D
UM
PS9
Tops
oil d
ump
x 3
750
x 24
0; 4
30 x
240
; 750
x 3
703
750.
0024
0.00
540,
000.
0010
.00
5,40
0,00
0.00
Rip
ping
of f
ootp
rint a
rea
m2
540,
000.
004.
100.
002,
214,
000.
002,
214,
000.
00Su
b-to
tal
2,21
4,00
0.00
10W
ater
pip
es (p
it)P
ipes
for d
rain
ing
wat
er fr
om th
e pi
t1
7,00
0.00
m7,
000.
005.
000.
0035
,000
.00
35,0
00.0
0Su
b-to
tal
35,0
00.0
0
WA
STE
DU
MP
11E
xist
ing
dum
p 20
00m
x 4
50m
12,
000.
0045
0.00
Con
stru
ct b
erm
aro
und
pit (
2m h
igh
berm
and
4m
bas
e)4m
2 of
ber
mm
319
,600
.00
31.0
00.
0060
7,60
0.00
607,
600.
004m
2 so
il w
edge
for r
eveg
etat
ion
-10m
from
foot
of d
ump
plac
e so
il fo
r bot
tom
10m
ht.
from
foot
of d
ump.
m3
19,6
00.0
03.
500.
0068
,600
.00
68,6
00.0
0Su
b-to
tal
676,
200.
00C
ON
VEYO
RS
12C
onve
yer t
o th
e ta
iling
s du
mp
Cla
dded
all
roun
d by
cor
ruga
ted
iron
shee
ts a
nd s
uppo
rted
by s
teel
col
umns
143
7.00
Rem
ove
conc
rete
bas
es a
t 10m
cen
tres
bund
wal
l or c
oncr
ete
slab
base
s at
3.5
m x
0.2
x 0
.5m
322
.94
370.
000.
008,
488.
738,
488.
73D
emol
ish
and
disp
ose
of s
teel
& e
lect
rical
equ
ip +
cla
ddin
g +
trest
les
200k
g pe
r met
ert
87.4
098
0.00
0.00
85,6
52.0
085
,652
.00
Rem
ove
conc
rete
sle
eper
s (3
No.
cra
wlin
g co
nvey
or- a
ppro
x. 1
00m
eac
h)sl
eepe
rs @
2.5
m c
/cite
m18
0.00
6.80
0.00
1,22
4.00
1,22
4.00
Bac
kfill
exc
avat
ions
(inc
ludi
ng to
psoi
l)m
322
.94
31.0
00.
0071
1.22
711.
22Ve
geta
tem
21,
529.
502.
400.
003,
670.
803,
670.
80Su
b-to
tal
99,7
46.7
4PI
TS13
NO
1O
pen
pit w
ith a
n ap
prox
imat
e di
amet
er o
f 202
m1
717.
0014
NO
2O
pen
pit w
ith a
n ap
prox
imat
e di
amet
er o
f 740
m1
2,46
3.00
3,18
0.00
Con
stru
ct b
erm
aro
und
pit (
2m h
igh
berm
and
4m
bas
e)m
312
,720
.00
31.0
00.
0039
4,32
0.00
394,
320.
00Su
b-to
tal
394,
320.
00
0.00
27,8
13,1
16.7
4
Reh
abili
tatio
n27
,301
,549
.74
Subt
otal
QU
AN
TITY
MIN
E A
SHEE
TA
ESTI
MAT
ED M
INE
CLOS
URE
COST
ITEM
No
DESC
RIPT
ION
COM
MEN
TSLE
NGTH
BREA
DTH
AREA
HEIG
HTVO
LUM
EUN
ITKE
YRA
TECR
EDIT
COST
SUB-
TOTA
LTO
TAL
ASSU
MPT
IONS
mm
m2
mm
3QU
ANTI
TY(P
ula)
(Pul
a)CO
ST (P
ula)
COST
(Pul
a)DA
MS
AND
DUM
PS
1aEx
isting
Tailin
gs D
ump
600m
by 6
00m
160
0.00
600.
0036
0,00
0.00
50.0
01b
Prop
osed
tailin
gs d
ump
2400
m b
y 250
m1
2,40
0.00
350.
0084
0,00
0.00
50.0
03,
000.
0095
0.00
cut d
ump
sides
to 1
in 3
fall
push
ove
r tail
ings m
ater
ial (P
art o
f ope
ratio
nal c
ost)
50%
of v
olum
e (c
ut to
fill)
m3
5,03
6,25
0.00
0.00
0.00
0.00
0.00
rock
fill
allow
for r
ock c
laddin
g alo
ng sl
oping
side
- 30
0mm
thick
m3
374,
460.
0031
.00
0.00
11,6
08,2
60.0
011
,608
,260
.00
50m
x 50
m p
addo
ck g
rid (1
m2
reta
iner b
erm
s)all
ow 2
m b
ase
by 1
m h
igh b
erm
s for
0.2
5ha
grid
form
ation
(par
t of o
pera
tiona
l cos
t)m
21,
200,
000.
000.
000.
000.
000.
00na
tura
l rev
eget
ation
allow
to re
vege
tate
nat
urall
ym
21,
200,
000.
000.
000.
000.
000.
00Su
b-to
tal
11,6
08,2
60.0
02(
a &
b)Sl
urry
dam
1 &
2 co
mbin
ed (s
ide sl
ope
1 in
3)12
00m
leng
th b
y 800
m w
idth
11,
000.
0080
0.00
800,
000.
0030
.00
3St
orm
wat
er fa
cilitie
s6m
wide
bas
e, 1
.6m
ht,
2m fla
t top
ber
m (6
.4m
2) b
erm
120
0.00
180.
0036
,000
.00
Pipe
line
rem
oval
m3,
600.
008.
400.
0030
,240
.00
30,2
40.0
0Re
mov
al of
ear
th b
erm
(sto
rmwa
ter p
ond)
6.4m
3 pe
r run
ning
met
erm
32,
432.
0026
.00
0.00
63,2
32.0
063
,232
.00
Rem
oval
of lin
ingall
ow 2
0% fo
r lini
ng o
n be
rm p
lus fu
ll bot
tom
are
am
243
,200
.00
2.75
0.00
118,
800.
0011
8,80
0.00
Rock
fill o
f 300
mm
(side
s only
)Si
des o
nlym
310
2,60
0.00
31.0
00.
003,
180,
600.
003,
180,
600.
00To
psoil
, gro
wing
med
iumall
ow fo
r 150
mm
of g
rowi
ng m
edium
m3
1,17
8,00
0.00
3.50
0.00
4,12
3,00
0.00
4,12
3,00
0.00
50m
x 50
m p
addo
ck g
rid (1
m2
reta
iner b
erm
s)all
ow 2
m b
ase
by 1
m h
igh b
erm
s for
0.2
5ha
grid
form
ation
m2
800,
000.
002.
000.
001,
600,
000.
001,
600,
000.
00Ve
geta
te si
des &
top
m2
1,17
8,00
0.00
2.40
0.00
2,82
7,20
0.00
2,82
7,20
0.00
Sub-
tota
l11
,943
,072
.00
ROAD
S4a
,b,c
Gene
ral g
rave
l rds
(14m
wid
e) p
lus
Haul
Roa
d (4
0m w
ide)
300m
m h
t. 7m
wide
, hau
l roa
d 40
m w
ide 5
00m
long
out
side
pit8,
645.
0014
.00
121,
030.
00
Rip
in sit
u m
ater
ial/la
ndsc
ape
m2
141,
030.
004.
100.
0057
8,22
3.00
578,
223.
00Re
mov
al of
road
side
light
ingLig
hts a
t 25m
cent
res
item
345.
8015
0.00
0.00
51,8
70.0
051
,870
.00
Sub-
tota
l63
0,09
3.00
5Pi
pewo
rkRe
mov
e pip
e wo
rk43
7m x
5no.
Pipe
(250
mm
dia)
2,
185.
00m
2,18
5.00
5.00
0.00
10,9
25.0
010
,925
.00
Sub-
tota
l10
,925
.00
6La
ydow
n ar
ea (O
pen
spac
e)No
reha
bilita
tion
requ
ired
Dem
olish
and
disp
ose
of st
eel a
nd e
quipm
ent
Rem
ove
pipe
work
7a,b
,cOV
ERHE
AD P
OWER
LINE
S (S
ee S
heet
H -
Town
ship
)
FENC
E8a
Exist
ing p
lus p
ropo
sed
2.4m
secu
rity f
ence
9500
m15
,500
.00
8bPr
opos
ed fe
nce
6000
m
Strip
and
rem
ove
fenc
e fr
om si
tem
15,5
00.0
013
.00
0.00
201,
500.
0020
1,50
0.00
Sub-
tota
l20
1,50
0.00
TOPS
OIL
DUM
PS9
Tops
oil d
ump
x 3
750
x 240
; 430
x 24
0; 7
50 x
370
375
0.00
240.
0054
0,00
0.00
10.0
05,
400,
000.
00
Ripp
ing o
f foo
tprin
t are
am
254
0,00
0.00
4.10
0.00
2,21
4,00
0.00
2,21
4,00
0.00
Sub-
tota
l2,
214,
000.
00
10W
ater
pipe
s (pit
)Pi
pes f
or d
raini
ng w
ater
from
the
pit1
7,00
0.00
m7,
000.
005.
000.
0035
,000
.00
35,0
00.0
0Su
b-to
tal
35,0
00.0
0
WAS
TE D
UMP
11Ex
isting
dum
p 20
00m
x 45
0m1
2,00
0.00
450.
00
Cons
truct
berm
aro
und
pit (2
m h
igh b
erm
and
4m
bas
e)4m
2 of
ber
mm
319
,600
.00
31.0
00.
0060
7,60
0.00
607,
600.
004m
2 so
il wed
ge fo
r rev
eget
ation
-10m
from
foot
of d
ump
place
soil f
or b
otto
m 1
0m h
t. fro
m fo
ot o
f dum
p.m
319
,600
.00
3.50
0.00
68,6
00.0
068
,600
.00
Sub-
tota
l67
6,20
0.00
CONV
EYOR
S12
Conv
eyer
to th
e ta
ilings
dum
pCl
adde
d all
roun
d by
corru
gate
d iro
n sh
eets
and
supp
orte
d by
stee
l colu
mns
143
7.00
Rem
ove
conc
rete
bas
es a
t 10m
cent
res b
und
wall o
r con
cret
e sla
bba
ses a
t 3.5
m x
0.2
x 0.5
m3
22.9
437
0.00
0.00
8,48
8.73
8,48
8.73
Dem
olish
and
disp
ose
of st
eel &
elec
trica
l equ
ip +
cladd
ing +
tres
tles
200k
g pe
r met
ert
87.4
098
0.00
0.00
85,6
52.0
085
,652
.00
Rem
ove
conc
rete
slee
pers
(3No
. cra
wling
conv
eyor
- app
rox.
100m
eac
h)sle
eper
s @ 2
.5m
c/c
item
180.
006.
800.
001,
224.
001,
224.
00Ba
ckfill
exc
avat
ions (
includ
ing to
psoil
)m
322
.94
31.0
00.
0071
1.22
711.
22Ve
geta
tem
21,
529.
502.
400.
003,
670.
803,
670.
80Su
b-to
tal
99,7
46.7
4PI
TS13
NO 1
Open
pit w
ith a
n ap
prox
imat
e dia
met
er o
f 202
m1
717.
0014
NO 2
Open
pit w
ith a
n ap
prox
imat
e dia
met
er o
f 740
m1
2,46
3.00
3,18
0.00
Cons
truct
berm
aro
und
pit (2
m h
igh b
erm
and
4m
bas
e)m
312
,720
.00
31.0
00.
0039
4,32
0.00
394,
320.
00Su
b-to
tal
394,
320.
00
0.00
27,8
13,11
6.74
Reha
bilit
atio
n27
,301
,549
.74
Subt
otal
QUAN
TITY
10 ANGLO AMERICAN MINE CLOSURE TOOLBOX
MIN
EA
SHEE
TB
ESTI
MAT
ED M
INE
CLO
SUR
E C
OST
ITEM
No
DES
CR
IPTI
ON
CO
MM
ENTS
QU
AN
TITY
LEN
GTH
BR
EA
DTH
AR
EAH
EIG
HT
VOLU
ME
UN
ITK
EYR
ATE
CR
EDIT
CO
STSU
B-T
OTA
LTO
TAL
ASS
UM
PTIO
NS
mm
m2
mm
3Q
UA
NTI
TY(P
ula)
(Pul
a)C
OST
(Pul
a)C
OST
(Pul
a)
BR
ICK
BU
ILD
ING
S
1A
dmin
istra
tion
Blo
ckS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of1
30.0
010
.40
312.
003.
0093
6.00
2S
ecur
ity B
lock
Sin
gle
stor
ey b
rick
build
ing
with
she
eted
roof
129
.80
10.1
030
0.98
2.90
872.
84
3P
lant
Wor
ksho
pS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of &
cla
ddin
g1
35.0
016
.50
577.
506.
003,
465.
00
4E
arth
Mov
ing
Wor
ksho
pS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of &
cla
ddin
g1
35.5
026
.20
930.
105.
004,
650.
50
5S
witc
h ya
rdS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of1
20.0
09.
5019
0.00
4.00
760.
00
6S
ubst
atio
nS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of1
26.0
010
.00
260.
004.
001,
040.
00
176.
3082
.70
2,57
0.58
4.15
11,7
24.3
4
Dem
olis
h an
d di
spos
e of
roof
she
etin
g pl
us c
ladd
ing
in p
itm
23,
609.
847.
500.
0027
,073
.79
27,0
73.7
9
Dem
olis
h an
d di
spos
e of
bric
k w
ork
in p
it (2
30m
m)
230m
mm
22,
149.
7070
.00
0.00
150,
479.
0015
0,47
9.00
Dem
olis
h an
d di
spos
e of
bric
k w
ork
in p
it (1
15m
m)
115m
mm
21,
224.
7035
.00
0.00
42,8
64.5
042
,864
.50
Dem
olis
h an
d di
spos
e of
civ
il w
ork
all c
oncr
ete
wor
ksm
377
1.17
370.
000.
0028
5,33
4.38
285,
334.
38
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
366.
2298
0.00
0.00
358,
895.
6035
8,89
5.60
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
356
5.53
26.0
00.
0014
,703
.72
14,7
03.7
2
Bac
kfill
exc
avat
ions
0.35
m d
eep
(0.5
-0.1
5 to
psoi
l)m
312
8.53
31.0
00.
003,
984.
403,
984.
40
Tops
oil 1
50m
mm
22,
570.
583.
500.
008,
997.
038,
997.
03
Vege
tate
m2
2,57
0.58
2.40
0.00
6,16
9.39
6,16
9.39
Sub-
tota
l89
8,50
1.80
7D
MS
125
.00
17.5
043
7.50
20.0
08,
750.
00
Dem
olis
h an
d di
spos
e of
roof
she
etin
g pl
us c
ladd
ing
in p
itm
22,
181.
257.
500.
0016
,359
.38
16,3
59.3
8
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
313
1.25
370.
000.
0048
,562
.50
48,5
62.5
0
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
350.
0098
0.00
0.00
343,
000.
0034
3,00
0.00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
396
.25
26.0
00.
002,
502.
502,
502.
50
Bac
kfill
exc
avat
ions
0.5m
dee
pm
321
.88
31.0
00.
0067
8.13
678.
13
Tops
oil 1
50m
mm
243
7.50
3.50
0.00
1,53
1.25
1,53
1.25
Vege
tate
m2
437.
502.
400.
001,
050.
001,
050.
00
Sub-
tota
l41
3,68
3.75
8aTr
ansf
er T
ower
115
.00
13.6
020
4.00
8.00
1,63
2.00
8bTr
ansf
er T
ower
120
.00
12.5
025
0.00
8.00
2,00
0.00
204.
001,
632.
00
Dem
olis
h an
d di
spos
e of
roof
she
etin
g in
pit
m2
224.
407.
500.
001,
683.
001,
683.
00
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
361
.20
370.
000.
0022
,644
.00
22,6
44.0
0
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
65.2
898
0.00
0.00
63,9
74.4
063
,974
.40
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
322
4.40
26.0
00.
005,
834.
405,
834.
40
Bac
kfill
exc
avat
ions
0.5m
dee
pm
371
.40
31.0
00.
002,
213.
402,
213.
40
Tops
oil 1
50m
mm
220
4.00
3.50
0.00
714.
0071
4.00
Vege
tate
m2
204.
002.
400.
0048
9.60
489.
60
Sub-
tota
l97
,552
.80
WAT
ER T
AN
KS
9aC
oncr
ete
wat
er t
ank
14m
dia
met
er c
oncr
ete
tank
115
3.86
6.00
923.
16
9bS
teel
wat
er ta
nk10
m d
iam
eter
ste
el w
ater
tank
s su
ppor
ted
by s
teel
col
umns
178
.50
10.0
078
5.00
9cS
teel
wat
er ta
nk10
m d
iam
eter
ste
el w
ater
tank
s su
ppor
ted
by s
teel
col
umns
178
.50
10.0
078
5.00
310.
862,
493.
16
Rem
ove
tank
sno
.2.
007,
200.
000.
0014
,400
.00
14,4
00.0
0
Dem
olis
h an
d di
spos
e of
civ
il w
orks
m3
93.2
637
0.00
0.00
34,5
05.4
634
,505
.46
Tops
oil 1
50m
mm
231
0.86
3.50
0.00
1,08
8.01
1,08
8.01
Vege
tate
m2
310.
862.
400.
0074
6.06
746.
06
Sub-
tota
l50
,739
.53
CR
USH
ER
10Pr
imar
y C
rush
er1
33.0
015
.00
495.
0012
.00
5,94
0.00
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
35,
940.
0037
0.00
0.00
2,19
7,80
0.00
2,19
7,80
0.00
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
1,18
8.00
980.
000.
001,
164,
240.
001,
164,
240.
00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
399
0.00
26.0
00.
0025
,740
.00
25,7
40.0
0
Bac
kfill
exc
avat
ions
0.5m
dee
pm
35,
568.
7531
.00
0.00
172,
631.
2517
2,63
1.25
Tops
oil 1
50m
mm
249
5.00
3.50
0.00
1,73
2.50
1,73
2.50
Vege
tate
m2
495.
002.
400.
001,
188.
001,
188.
00
Sub-
tota
l3,
563,
331.
75
11D
ump
Sum
p1
42.0
027
.00
1,13
4.00
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
334
0.20
370.
000.
0012
5,87
4.00
125,
874.
00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
31,
247.
4026
.00
0.00
32,4
32.4
032
,432
.40
Bac
kfill
exc
avat
ions
0.5m
dee
pm
339
6.90
31.0
00.
0012
,303
.90
12,3
03.9
0
Tops
oil 1
50m
mm
21,
134.
003.
500.
003,
969.
003,
969.
00
Vege
tate
m2
1,13
4.00
2.40
0.00
2,72
1.60
2,72
1.60
Sub-
tota
l17
7,30
0.90
12Fu
el B
ay1
18.0
017
.00
306.
000.
2061
.20
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
391
.80
370.
000.
0033
,966
.00
33,9
66.0
0
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
333
6.60
26.0
00.
008,
751.
608,
751.
60
Bac
kfill
exc
avat
ions
0.5m
dee
pm
310
7.10
31.0
00.
003,
320.
103,
320.
10
Tops
oil 1
50m
mm
230
6.00
3.50
0.00
1,07
1.00
1,07
1.00
Vege
tate
m2
306.
002.
400.
0073
4.40
734.
40
Sub-
tota
l47
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.10
13C
arpo
rt p
lus
futu
re p
rovi
sion
s36
bay
s (4
5x10
)m4
100.
0010
.00
4,00
0.00
4.00
16,0
00.0
0
Dem
olis
h an
d di
spos
e of
roof
she
etin
g in
pit
m2
4,40
0.00
7.50
0.00
33,0
00.0
033
,000
.00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
37,
500.
0026
.00
0.00
195,
000.
0019
5,00
0.00
Bac
kfill
exc
avat
ions
m3
0.00
31.0
00.
000.
000.
00
Tops
oil 1
50m
mm
24,
000.
003.
500.
0014
,000
.00
14,0
00.0
0
Vege
tate
m2
4,00
0.00
2.40
0.00
9,60
0.00
9,60
0.00
Sub-
tota
l25
1,60
0.00
14a,
b,c
Gra
vel r
oad
(See
item
4 S
heet
A)
300m
m h
t. 7m
wid
e1
1,33
2.00
7.00
9,32
4.00
0.30
2,79
7.20
16A
cces
s ra
mp
to C
rush
er1
113.
0023
.00
2,59
9.00
5.15
13,3
84.8
5
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
m3
2,85
8.90
26.0
00.
0074
,331
.40
74,3
31.4
0
Bac
kfill
exc
avat
ions
m3
909.
6531
.00
0.00
28,1
99.1
528
,199
.15
Tops
oil 1
50m
mm
22,
599.
003.
500.
009,
096.
509,
096.
50
Vege
tate
m2
2,59
9.00
2.40
0.00
6,23
7.60
6,23
7.60
Sub-
tota
l11
7,86
4.65
17Fe
nce
(See
item
No.
8 o
f She
et A
)2.
4m h
t1
464.
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000.
00
18a
Raw
wat
er re
serv
ior
154
.00
52.0
02,
808.
001.
002,
808.
00
18b
Pum
p st
atio
nTo
Ora
pa fa
cilit
ies
110
.00
5.00
50.0
03.
0015
0.00
2,85
8.00
2,95
8.00
Dem
olis
h an
d di
spos
e of
roof
she
etin
g in
pit
earth
ber
mm
214
5.00
7.50
0.00
1,08
7.50
1,08
7.50
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
385
7.40
370.
000.
0031
7,23
8.00
317,
238.
00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
33,
143.
8026
.00
0.00
81,7
38.8
081
,738
.80
Bac
kfill
exc
avat
ions
0.5m
dee
pm
31,
000.
3031
.00
0.00
31,0
09.3
031
,009
.30
Tops
oil 1
50m
mm
22,
858.
003.
500.
0010
,003
.00
10,0
03.0
0
Vege
tate
m2
2,85
8.00
2.40
0.00
6,85
9.20
6,85
9.20
Sub-
tota
l44
7,93
5.80
MINE CLOSURE ESTIMATE SPREADSHEET CONTINUED
11ANGLO AMERICAN MINE CLOSURE TOOLBOX
MIN
EA
SHEE
TB
ESTI
MAT
ED M
INE
CLO
SUR
E C
OST
ITEM
No
DES
CR
IPTI
ON
CO
MM
ENTS
QU
AN
TITY
LEN
GTH
BR
EA
DTH
AR
EAH
EIG
HT
VOLU
ME
UN
ITK
EYR
ATE
CR
EDIT
CO
STSU
B-T
OTA
LTO
TAL
ASS
UM
PTIO
NS
mm
m2
mm
3Q
UA
NTI
TY(P
ula)
(Pul
a)C
OST
(Pul
a)C
OST
(Pul
a)
BR
ICK
BU
ILD
ING
S
1A
dmin
istra
tion
Blo
ckS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of1
30.0
010
.40
312.
003.
0093
6.00
2S
ecur
ity B
lock
Sin
gle
stor
ey b
rick
build
ing
with
she
eted
roof
129
.80
10.1
030
0.98
2.90
872.
84
3P
lant
Wor
ksho
pS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of &
cla
ddin
g1
35.0
016
.50
577.
506.
003,
465.
00
4E
arth
Mov
ing
Wor
ksho
pS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of &
cla
ddin
g1
35.5
026
.20
930.
105.
004,
650.
50
5S
witc
h ya
rdS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of1
20.0
09.
5019
0.00
4.00
760.
00
6S
ubst
atio
nS
ingl
e st
orey
bric
k bu
ildin
g w
ith s
heet
ed ro
of1
26.0
010
.00
260.
004.
001,
040.
00
176.
3082
.70
2,57
0.58
4.15
11,7
24.3
4
Dem
olis
h an
d di
spos
e of
roof
she
etin
g pl
us c
ladd
ing
in p
itm
23,
609.
847.
500.
0027
,073
.79
27,0
73.7
9
Dem
olis
h an
d di
spos
e of
bric
k w
ork
in p
it (2
30m
m)
230m
mm
22,
149.
7070
.00
0.00
150,
479.
0015
0,47
9.00
Dem
olis
h an
d di
spos
e of
bric
k w
ork
in p
it (1
15m
m)
115m
mm
21,
224.
7035
.00
0.00
42,8
64.5
042
,864
.50
Dem
olis
h an
d di
spos
e of
civ
il w
ork
all c
oncr
ete
wor
ksm
377
1.17
370.
000.
0028
5,33
4.38
285,
334.
38
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
366.
2298
0.00
0.00
358,
895.
6035
8,89
5.60
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
356
5.53
26.0
00.
0014
,703
.72
14,7
03.7
2
Bac
kfill
exc
avat
ions
0.35
m d
eep
(0.5
-0.1
5 to
psoi
l)m
312
8.53
31.0
00.
003,
984.
403,
984.
40
Tops
oil 1
50m
mm
22,
570.
583.
500.
008,
997.
038,
997.
03
Vege
tate
m2
2,57
0.58
2.40
0.00
6,16
9.39
6,16
9.39
Sub-
tota
l89
8,50
1.80
7D
MS
125
.00
17.5
043
7.50
20.0
08,
750.
00
Dem
olis
h an
d di
spos
e of
roof
she
etin
g pl
us c
ladd
ing
in p
itm
22,
181.
257.
500.
0016
,359
.38
16,3
59.3
8
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
313
1.25
370.
000.
0048
,562
.50
48,5
62.5
0
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
350.
0098
0.00
0.00
343,
000.
0034
3,00
0.00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
396
.25
26.0
00.
002,
502.
502,
502.
50
Bac
kfill
exc
avat
ions
0.5m
dee
pm
321
.88
31.0
00.
0067
8.13
678.
13
Tops
oil 1
50m
mm
243
7.50
3.50
0.00
1,53
1.25
1,53
1.25
Vege
tate
m2
437.
502.
400.
001,
050.
001,
050.
00
Sub-
tota
l41
3,68
3.75
8aTr
ansf
er T
ower
115
.00
13.6
020
4.00
8.00
1,63
2.00
8bTr
ansf
er T
ower
120
.00
12.5
025
0.00
8.00
2,00
0.00
204.
001,
632.
00
Dem
olis
h an
d di
spos
e of
roof
she
etin
g in
pit
m2
224.
407.
500.
001,
683.
001,
683.
00
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
361
.20
370.
000.
0022
,644
.00
22,6
44.0
0
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
65.2
898
0.00
0.00
63,9
74.4
063
,974
.40
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
322
4.40
26.0
00.
005,
834.
405,
834.
40
Bac
kfill
exc
avat
ions
0.5m
dee
pm
371
.40
31.0
00.
002,
213.
402,
213.
40
Tops
oil 1
50m
mm
220
4.00
3.50
0.00
714.
0071
4.00
Vege
tate
m2
204.
002.
400.
0048
9.60
489.
60
Sub-
tota
l97
,552
.80
WAT
ER T
AN
KS
9aC
oncr
ete
wat
er t
ank
14m
dia
met
er c
oncr
ete
tank
115
3.86
6.00
923.
16
9bS
teel
wat
er ta
nk10
m d
iam
eter
ste
el w
ater
tank
s su
ppor
ted
by s
teel
col
umns
178
.50
10.0
078
5.00
9cS
teel
wat
er ta
nk10
m d
iam
eter
ste
el w
ater
tank
s su
ppor
ted
by s
teel
col
umns
178
.50
10.0
078
5.00
310.
862,
493.
16
Rem
ove
tank
sno
.2.
007,
200.
000.
0014
,400
.00
14,4
00.0
0
Dem
olis
h an
d di
spos
e of
civ
il w
orks
m3
93.2
637
0.00
0.00
34,5
05.4
634
,505
.46
Tops
oil 1
50m
mm
231
0.86
3.50
0.00
1,08
8.01
1,08
8.01
Vege
tate
m2
310.
862.
400.
0074
6.06
746.
06
Sub-
tota
l50
,739
.53
CR
USH
ER
10Pr
imar
y C
rush
er1
33.0
015
.00
495.
0012
.00
5,94
0.00
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
35,
940.
0037
0.00
0.00
2,19
7,80
0.00
2,19
7,80
0.00
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
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8.00
980.
000.
001,
164,
240.
001,
164,
240.
00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
399
0.00
26.0
00.
0025
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25,7
40.0
0
Bac
kfill
exc
avat
ions
0.5m
dee
pm
35,
568.
7531
.00
0.00
172,
631.
2517
2,63
1.25
Tops
oil 1
50m
mm
249
5.00
3.50
0.00
1,73
2.50
1,73
2.50
Vege
tate
m2
495.
002.
400.
001,
188.
001,
188.
00
Sub-
tota
l3,
563,
331.
75
11D
ump
Sum
p1
42.0
027
.00
1,13
4.00
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
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oncr
ete
wor
ksm
334
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370.
000.
0012
5,87
4.00
125,
874.
00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
31,
247.
4026
.00
0.00
32,4
32.4
032
,432
.40
Bac
kfill
exc
avat
ions
0.5m
dee
pm
339
6.90
31.0
00.
0012
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12,3
03.9
0
Tops
oil 1
50m
mm
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134.
003.
500.
003,
969.
003,
969.
00
Vege
tate
m2
1,13
4.00
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0.00
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1.60
2,72
1.60
Sub-
tota
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7,30
0.90
12Fu
el B
ay1
18.0
017
.00
306.
000.
2061
.20
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
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ve)
all c
oncr
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ksm
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000.
0033
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.00
33,9
66.0
0
Exc
avat
e an
d de
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ish
terr
ace
belo
w N
GL
0.5m
hig
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333
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00.
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751.
608,
751.
60
Bac
kfill
exc
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ions
0.5m
dee
pm
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7.10
31.0
00.
003,
320.
103,
320.
10
Tops
oil 1
50m
mm
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0.00
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1,07
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Vege
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Sub-
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arpo
rt p
lus
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re p
rovi
sion
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100.
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4,00
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16,0
00.0
0
Dem
olis
h an
d di
spos
e of
roof
she
etin
g in
pit
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0.00
7.50
0.00
33,0
00.0
033
,000
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Exc
avat
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mol
ish
terr
ace
belo
w N
GL
0.5m
hig
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500.
0026
.00
0.00
195,
000.
0019
5,00
0.00
Bac
kfill
exc
avat
ions
m3
0.00
31.0
00.
000.
000.
00
Tops
oil 1
50m
mm
24,
000.
003.
500.
0014
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.00
14,0
00.0
0
Vege
tate
m2
4,00
0.00
2.40
0.00
9,60
0.00
9,60
0.00
Sub-
tota
l25
1,60
0.00
14a,
b,c
Gra
vel r
oad
(See
item
4 S
heet
A)
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m h
t. 7m
wid
e1
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9,32
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0.30
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cces
s ra
mp
to C
rush
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113.
0023
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2,59
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13,3
84.8
5
Exc
avat
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mol
ish
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GL
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8.90
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00.
0074
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31.4
0
Bac
kfill
exc
avat
ions
m3
909.
6531
.00
0.00
28,1
99.1
528
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.15
Tops
oil 1
50m
mm
22,
599.
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500.
009,
096.
509,
096.
50
Vege
tate
m2
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9.00
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0.00
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7.60
Sub-
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nce
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item
No.
8 o
f She
et A
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t1
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00
18a
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er re
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154
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52.0
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001.
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00
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pa fa
cilit
ies
110
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0015
0.00
2,85
8.00
2,95
8.00
Dem
olis
h an
d di
spos
e of
roof
she
etin
g in
pit
earth
ber
mm
214
5.00
7.50
0.00
1,08
7.50
1,08
7.50
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
385
7.40
370.
000.
0031
7,23
8.00
317,
238.
00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
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33,
143.
8026
.00
0.00
81,7
38.8
081
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.80
Bac
kfill
exc
avat
ions
0.5m
dee
pm
31,
000.
3031
.00
0.00
31,0
09.3
031
,009
.30
Tops
oil 1
50m
mm
22,
858.
003.
500.
0010
,003
.00
10,0
03.0
0
Vege
tate
m2
2,85
8.00
2.40
0.00
6,85
9.20
6,85
9.20
Sub-
tota
l44
7,93
5.80
MIN
EA
SHEE
TB
ESTI
MAT
ED M
INE
CLO
SUR
E C
OST
ITEM
No
DES
CR
IPTI
ON
CO
MM
ENTS
QU
AN
TITY
LEN
GTH
BR
EA
DTH
AR
EAH
EIG
HT
VOLU
ME
UN
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CR
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mm
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mm
3Q
UA
NTI
TY(P
ula)
(Pul
a)C
OST
(Pul
a)C
OST
(Pul
a)
BR
ICK
BU
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dmin
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tion
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ckS
ingl
e st
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bric
k bu
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ed ro
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30.0
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312.
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0093
6.00
2S
ecur
ity B
lock
Sin
gle
stor
ey b
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build
ing
with
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eted
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129
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030
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2.90
872.
84
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ith s
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35.0
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577.
506.
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465.
00
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arth
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35.5
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105.
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50
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20.0
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00
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bric
k bu
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ith s
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26.0
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260.
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00
176.
3082
.70
2,57
0.58
4.15
11,7
24.3
4
Dem
olis
h an
d di
spos
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roof
she
etin
g pl
us c
ladd
ing
in p
itm
23,
609.
847.
500.
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.79
27,0
73.7
9
Dem
olis
h an
d di
spos
e of
bric
k w
ork
in p
it (2
30m
m)
230m
mm
22,
149.
7070
.00
0.00
150,
479.
0015
0,47
9.00
Dem
olis
h an
d di
spos
e of
bric
k w
ork
in p
it (1
15m
m)
115m
mm
21,
224.
7035
.00
0.00
42,8
64.5
042
,864
.50
Dem
olis
h an
d di
spos
e of
civ
il w
ork
all c
oncr
ete
wor
ksm
377
1.17
370.
000.
0028
5,33
4.38
285,
334.
38
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
366.
2298
0.00
0.00
358,
895.
6035
8,89
5.60
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
356
5.53
26.0
00.
0014
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.72
14,7
03.7
2
Bac
kfill
exc
avat
ions
0.35
m d
eep
(0.5
-0.1
5 to
psoi
l)m
312
8.53
31.0
00.
003,
984.
403,
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40
Tops
oil 1
50m
mm
22,
570.
583.
500.
008,
997.
038,
997.
03
Vege
tate
m2
2,57
0.58
2.40
0.00
6,16
9.39
6,16
9.39
Sub-
tota
l89
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1.80
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MS
125
.00
17.5
043
7.50
20.0
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750.
00
Dem
olis
h an
d di
spos
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roof
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etin
g pl
us c
ladd
ing
in p
itm
22,
181.
257.
500.
0016
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.38
16,3
59.3
8
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
313
1.25
370.
000.
0048
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.50
48,5
62.5
0
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
350.
0098
0.00
0.00
343,
000.
0034
3,00
0.00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
396
.25
26.0
00.
002,
502.
502,
502.
50
Bac
kfill
exc
avat
ions
0.5m
dee
pm
321
.88
31.0
00.
0067
8.13
678.
13
Tops
oil 1
50m
mm
243
7.50
3.50
0.00
1,53
1.25
1,53
1.25
Vege
tate
m2
437.
502.
400.
001,
050.
001,
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00
Sub-
tota
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3.75
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er T
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13.6
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8.00
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2.00
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12.5
025
0.00
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0.00
204.
001,
632.
00
Dem
olis
h an
d di
spos
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roof
she
etin
g in
pit
m2
224.
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500.
001,
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001,
683.
00
Dem
olis
h an
d di
spos
e of
civ
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ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
361
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000.
0022
,644
.00
22,6
44.0
0
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
65.2
898
0.00
0.00
63,9
74.4
063
,974
.40
Exc
avat
e an
d de
mol
ish
terr
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belo
w N
GL
0.5m
hig
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322
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26.0
00.
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834.
40
Bac
kfill
exc
avat
ions
0.5m
dee
pm
371
.40
31.0
00.
002,
213.
402,
213.
40
Tops
oil 1
50m
mm
220
4.00
3.50
0.00
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0071
4.00
Vege
tate
m2
204.
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400.
0048
9.60
489.
60
Sub-
tota
l97
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WAT
ER T
AN
KS
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oncr
ete
wat
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ank
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dia
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tank
115
3.86
6.00
923.
16
9bS
teel
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ste
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178
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10.0
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5.00
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m d
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ater
tank
s su
ppor
ted
by s
teel
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178
.50
10.0
078
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310.
862,
493.
16
Rem
ove
tank
sno
.2.
007,
200.
000.
0014
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.00
14,4
00.0
0
Dem
olis
h an
d di
spos
e of
civ
il w
orks
m3
93.2
637
0.00
0.00
34,5
05.4
634
,505
.46
Tops
oil 1
50m
mm
231
0.86
3.50
0.00
1,08
8.01
1,08
8.01
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tate
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310.
862.
400.
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746.
06
Sub-
tota
l50
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CR
USH
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imar
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rush
er1
33.0
015
.00
495.
0012
.00
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0.00
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
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oncr
ete
wor
ksm
35,
940.
0037
0.00
0.00
2,19
7,80
0.00
2,19
7,80
0.00
Dem
olis
h an
d di
spos
e of
ste
el/e
lect
rical
item
sQ
S -
appr
ox 5
0kg/
m3
for s
truct
ure
stee
l and
30k
g/m
3 fo
r ele
ctric
alt
1,18
8.00
980.
000.
001,
164,
240.
001,
164,
240.
00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
399
0.00
26.0
00.
0025
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.00
25,7
40.0
0
Bac
kfill
exc
avat
ions
0.5m
dee
pm
35,
568.
7531
.00
0.00
172,
631.
2517
2,63
1.25
Tops
oil 1
50m
mm
249
5.00
3.50
0.00
1,73
2.50
1,73
2.50
Vege
tate
m2
495.
002.
400.
001,
188.
001,
188.
00
Sub-
tota
l3,
563,
331.
75
11D
ump
Sum
p1
42.0
027
.00
1,13
4.00
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
ete
wor
ksm
334
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370.
000.
0012
5,87
4.00
125,
874.
00
Exc
avat
e an
d de
mol
ish
terr
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belo
w N
GL
0.5m
hig
hm
31,
247.
4026
.00
0.00
32,4
32.4
032
,432
.40
Bac
kfill
exc
avat
ions
0.5m
dee
pm
339
6.90
31.0
00.
0012
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.90
12,3
03.9
0
Tops
oil 1
50m
mm
21,
134.
003.
500.
003,
969.
003,
969.
00
Vege
tate
m2
1,13
4.00
2.40
0.00
2,72
1.60
2,72
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Sub-
tota
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el B
ay1
18.0
017
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2061
.20
Dem
olis
h an
d di
spos
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civ
il w
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(incl
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ve)
all c
oncr
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wor
ksm
391
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000.
0033
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.00
33,9
66.0
0
Exc
avat
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d de
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terr
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00.
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608,
751.
60
Bac
kfill
exc
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ions
0.5m
dee
pm
310
7.10
31.0
00.
003,
320.
103,
320.
10
Tops
oil 1
50m
mm
230
6.00
3.50
0.00
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Vege
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306.
002.
400.
0073
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40
Sub-
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l47
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.10
13C
arpo
rt p
lus
futu
re p
rovi
sion
s36
bay
s (4
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)m4
100.
0010
.00
4,00
0.00
4.00
16,0
00.0
0
Dem
olis
h an
d di
spos
e of
roof
she
etin
g in
pit
m2
4,40
0.00
7.50
0.00
33,0
00.0
033
,000
.00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
37,
500.
0026
.00
0.00
195,
000.
0019
5,00
0.00
Bac
kfill
exc
avat
ions
m3
0.00
31.0
00.
000.
000.
00
Tops
oil 1
50m
mm
24,
000.
003.
500.
0014
,000
.00
14,0
00.0
0
Vege
tate
m2
4,00
0.00
2.40
0.00
9,60
0.00
9,60
0.00
Sub-
tota
l25
1,60
0.00
14a,
b,c
Gra
vel r
oad
(See
item
4 S
heet
A)
300m
m h
t. 7m
wid
e1
1,33
2.00
7.00
9,32
4.00
0.30
2,79
7.20
16A
cces
s ra
mp
to C
rush
er1
113.
0023
.00
2,59
9.00
5.15
13,3
84.8
5
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
m3
2,85
8.90
26.0
00.
0074
,331
.40
74,3
31.4
0
Bac
kfill
exc
avat
ions
m3
909.
6531
.00
0.00
28,1
99.1
528
,199
.15
Tops
oil 1
50m
mm
22,
599.
003.
500.
009,
096.
509,
096.
50
Vege
tate
m2
2,59
9.00
2.40
0.00
6,23
7.60
6,23
7.60
Sub-
tota
l11
7,86
4.65
17Fe
nce
(See
item
No.
8 o
f She
et A
)2.
4m h
t1
464.
000.
000.
00
18a
Raw
wat
er re
serv
ior
154
.00
52.0
02,
808.
001.
002,
808.
00
18b
Pum
p st
atio
nTo
Ora
pa fa
cilit
ies
110
.00
5.00
50.0
03.
0015
0.00
2,85
8.00
2,95
8.00
Dem
olis
h an
d di
spos
e of
roof
she
etin
g in
pit
earth
ber
mm
214
5.00
7.50
0.00
1,08
7.50
1,08
7.50
Dem
olis
h an
d di
spos
e of
civ
il w
ork
(incl
. abo
ve)
all c
oncr
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wor
ksm
385
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7,23
8.00
317,
238.
00
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avat
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ish
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w N
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33,
143.
8026
.00
0.00
81,7
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,738
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kfill
exc
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ions
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pm
31,
000.
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09.3
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oil 1
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mm
22,
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003.
500.
0010
,003
.00
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Vege
tate
m2
2,85
8.00
2.40
0.00
6,85
9.20
6,85
9.20
Sub-
tota
l44
7,93
5.80
12 ANGLO AMERICAN MINE CLOSURE TOOLBOX
MIN
EA
SHEE
TB
ESTI
MAT
ED M
INE
CLO
SUR
E C
OST
ITEM
No
DES
CR
IPTI
ON
CO
MM
ENTS
QU
AN
TITY
LEN
GTH
BR
EA
DTH
AR
EAH
EIG
HT
VOLU
ME
UN
ITK
EYR
ATE
CR
EDIT
CO
STSU
B-T
OTA
LTO
TAL
ASS
UM
PTIO
NS
mm
m2
mm
3Q
UA
NTI
TY(P
ula)
(Pul
a)C
OST
(Pul
a)C
OST
(Pul
a)
CO
NVE
YOR
S
19a
Con
veyo
rC
ladd
ed a
ll ro
und
and
supo
rted
by s
teel
col
umns
with
a 1
m m
in. h
eigh
t and
6m
max
. hei
ght
197
.00
19b
Con
veyo
rC
ladd
ed a
ll ro
und
and
supo
rted
by s
teel
col
umns
with
a 3
m m
in. h
eigh
t and
9m
max
. hei
ght
172
.00
19c
Con
veyo
rC
ladd
ed a
ll ro
und
and
supo
rted
by s
teel
col
umns
with
a 1
m m
in. h
eigh
t and
9m
max
. hei
ght
112
0.00
19d
Con
veyo
rC
ladd
ed a
ll ro
und
and
supo
rted
by s
teel
col
umns
with
a 1
m m
in. h
eigh
t and
7m
max
. hei
ght
111
7.00
19e
Con
veyo
rC
ladd
ed a
ll ro
und
and
supo
rted
by s
teel
col
umns
with
a 1
m m
in. h
eigh
t and
5m
max
. hei
ght
162
.00
19f
Cab
le R
ack
(plu
s ca
bles
)1
52.0
0
520.
00
Rem
ove
conc
rete
bas
es a
t 10m
cen
tres
base
s 3.
5 x
0.2
x 0.
75 @
10m
cen
tres
m3
36.4
037
0.00
0.00
13,4
68.0
013
,468
.00
Dem
olis
h an
d di
spos
e of
ste
el a
nd e
lect
rical
equ
ip +
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ddin
g +t
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tles
0.5m
hig
ht
104.
0098
0.00
0.00
101,
920.
0010
1,92
0.00
Bac
kfill
exc
avat
ions
0.5m
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pm
363
7.00
31.0
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,747
.00
19,7
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oil 1
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370.
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370.
00
Vege
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4,36
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Sub-
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l14
5,87
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20a
Clin
ic15
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x 5
.5m
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amp
115
.50
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54
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Por
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x 5
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4.56
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Com
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5.8m
x 2
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8016
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464
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aste
sto
rage
17.5
m x
3.2
m p
orta
cam
p1
17.5
03.
2056
.00
422
4.00
22B
atem
ans
Offi
ce18
m x
5.9
m p
orta
cam
p1
13.0
05.
9076
.70
430
6.80
23E
lect
rical
sto
res
12m
x 5
m (s
heet
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und)
112
.00
5.00
60.0
05
300.
00
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eatm
ent p
lant
mes
s17
m x
7m
por
ta c
amp
117
.00
7.00
119.
004
476.
00
446.
831,
847.
32
Dem
olis
h an
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spos
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etin
g pl
us c
ladd
ing
in p
itm
266
1.51
7.50
0.00
4,96
1.35
4,96
1.35
Dem
olis
h an
d di
spos
e of
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il w
ork
(incl
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ve)
all c
oncr
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wor
ksm
313
4.05
370.
000.
0049
,598
.13
49,5
98.1
3
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ove
porta
car
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from
site
no.
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700.
002,
700.
00
Exc
avat
e an
d de
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ish
terr
ace
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w N
GL
0.5m
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349
1.51
26.0
00.
0012
,779
.34
12,7
79.3
4
Bac
kfill
exc
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ions
0.5m
dee
pm
315
6.39
31.0
00.
004,
848.
114,
848.
11
Tops
oil 1
50m
mm
244
6.83
3.50
0.00
1,56
3.91
1,56
3.91
Vege
tate
m2
446.
832.
400.
001,
072.
391,
072.
39
Sub-
tota
l77
,523
.22
FUEL
TA
NK
S
25a
Fuel
/Lub
rican
tsTa
nks
5No
25b
Con
cret
e sl
abs
and
wal
ls25
m x
20m
(inc
ludi
ng d
eliv
ery
plat
form
)1
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.00
500.
000.
2010
0.00
Dem
olis
h an
d di
spos
e of
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il w
ork
(incl
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ve)
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oncr
ete
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315
0.00
370.
000.
0055
,500
.00
55,5
00.0
0
Rem
ove
and
disp
ose
of ta
nks
no.
5.00
2,70
0.00
13,5
00.0
013
,500
.00
Exc
avat
e an
d de
mol
ish
terr
ace
belo
w N
GL
0.5m
hig
hm
355
0.00
26.0
00.
0014
,300
.00
14,3
00.0
0
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kfill
exc
avat
ions
0.5m
dee
pm
317
5.00
31.0
00.
005,
425.
005,
425.
00
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oil 1
50m
mm
250
0.00
3.50
0.00
1,75
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Vege
tate
m2
500.
002.
400.
001,
200.
001,
200.
00
Sub-
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l91
,675
.00
26Pi
pe w
orks
(See
She
et A
item
5)
0.00
6,38
1,42
5.31
Reh
abili
tatio
n40
3,38
5.89
Subt
otal
MINE CLOSURE ESTIMATE SPREADSHEET CONTINUED
13ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE 2: COMPLETED GAP ANALYSIS AND ACTION PLAN USING TOOL 1, 2 AND 3
14 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE 2: COMPLETED GAP ANALYSIS AND ACTION PLAN USING TOOL 1, 2 AND 3INTRODUCTIONAnglo American’s Technical Solutions was commissioned by Mine B to assist with their strategic mine closure planning, by implementing the AA plc Mine Closure Toolbox.
This note focuses on the information gaps that were identified during the gap analysis workshop (Tool 2 of the Mine Closure Toolbox) that took place at Mine B in June 2007. The completed “Gap analysis” spreadsheet is attached in Appendix A.
Tool 3 of the Toolbox identifies the detailed steps that must be taken to fill the gaps identified in the gap analysis. It has been used to identify the outstanding scope of work in updating the current mine closure plan. The various applicable “Tasks” and “Steps” from Tool 3 are noted in this document.
The aim of the project is to upgrade the current mine closure plan to a “Preliminary Closure Plan” by the end of 2007 and then to a “Final Closure Plan” by the end of 2008. The proposed project programme is attached in Appendix B.
CURRENT STATUS OF MINE CLOSURE PLANNINGBased on current mine planning, the mine will probably be closed by the end of 2008/April 2009. This means that the mine’s current level of mine closure planning should be at the level of a “Final Closure Plan” as reflected in the “5-0 years” column of the spreadsheet contained in Appendix A. This is however not the case, as the mine currently does not have a mine closure plan that addresses all the requirements as defined for a “Final Closure Plan”.
The process of attaining a Final Mine Closure Plan (Class 2 to 3 estimate) over the next 18 months is split into two separate phases:
• Phase 1 of the project aims at generating a Preliminary Closure Plan addressing the physical, biophysical and socio-economic gaps by end 2007, without any I&AP consultation on closure issues, while
• Phase 2 of the project aims at updating the Preliminary Closure Plan, by using it in consultation with I&APs about closure, and to satisfy all the requirements of a Final Closure Plan by end 2008/April 2009.
By using the steps as identified in Task 3A to Task 3I of Tool 3 of the Mine Closure Toolbox, the following physical, biophysical and socio-economic closure gaps need to be addressed in 2007.
The main gaps identified in relation to the physical closure component of the mine closure plan are:
• The lack of detailed layout drawings reflecting off-site surface infrastructure, waste disposal sites, mine towns and housing. A complete list of all facilities (asset register) is not available
• The lack of detailed quantities for each facility and a detailed closure cost spreadsheet reflecting the cost of each facility, referenced to the layout drawings
• The current level of accuracy of the estimate needs to be improved by reworking the closure criteria and aiming at reducing assumptions by replacing them with closure criteria
• The lack of using on-site rates in the current closure estimate, where national guideline rates were used. The national guideline rates should only be used for comparative purposes
• The current lack of confidence in the closure criteria and final land use objectives, since these have not been discussed with I&APs, and in more detail with government
• The current Class 0 estimate that must be updated to a Class 2 estimate, and eventually to a Class 3 estimate.
The main gaps identified in relation to the biophysical closure component of the mine closure plan are:
• The lack of an environmental risk report containing at least a screening level environmental risk assessment where potential significant risks, uncertain risks and insignificant risks are identified. This environmental risk report needs to be improved to a Level 2 environmental risk report and the acceptability of the identified significant risks with proposed management measures, as well as the insignificant risks, need to be confirmed in consultation with I&APs and government
• The lack of identifying additional closure costs associated with potential significant post-closure residual and latent impacts
• The current lack of confidence in the closure criteria and final land use objectives, since these have not been discussed with I&APs, and in more detail with government
• The current Class 0 estimate must be updated to a Class 2 estimate, and eventually to a Class 3 estimate.
The main gaps identified in relation to the socio-economic closure component of the mine closure plan are:
• The lack of employee involvement in identifying their future training, reskilling and other closure requirements
• Only a rapid health impact assessment (HIA) has been carried out, to date
• Only an initial profile of the mine’s employees has been generated
• The lack of a closure vision with underlying closure principles
• The lack of integrated strategic mine closure planning by means of a State of the Environment Report (SOER) and a Rapid Strategic Environmental Assessment (SEA)
15ANGLO AMERICAN MINE CLOSURE TOOLBOX
• No mine closure specific consultation has taken place to date, and no Stakeholder Engagement Plan (SEP) is in place
• The unidentified potential additional closure costs associated with I&APs and employees, through a collaborative process
• The current lack of confidence in the closure criteria and final land use objectives, since these have not been discussed with I&APs, employees or government in more detail
• The current Class 0 estimate must be updated to a Class 2 estimate, and eventually to a Class 3 estimate.
The main general gaps identified in the mine’s closure plan are:
• The lack of a mine closure plan covering the physical, bio-physical and social environments in an integrated manner through a comprehensive consultation process involving I&APs and government
• The lack of a detailed closure programme with a linked cash flow
• The current lack of confidence in the closure criteria and final land use objectives, since these have not been discussed with I&APs, employees or government in more detail
• The current Class 0 estimate must be updated to a Class 2 estimate, and eventually to a Class 3 estimate
PROJECT PHASE 1: PRELIMINARY CLOSURE PLAN DEVELOPMENTAll the requirements as listed in column “25-15 years” of the gap analysis spreadsheet (Appendix A) will have to be met to enable the compilation of the Preliminary Closure Plan.
The physical closure gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3A of Tool 3 as follows:
• Step A9 (A1 to A4): Surface layout drawings need to be generated showing all mine owned infrastructure as well as other infrastructure used by the mine that does not belong to the mine, but could be a closure liability
• Step A10: The overall mine layout drawing must then be split into workable areas based on either security coding, areas of responsibility or any other criteria as defined by the mine, and all the facilities must be numbered
• Step A11: Generate drawings for each area and number each facility/structure on the relevant drawing
• Step A12: A workshop must be held at the mine to establish a set of mine closure criteria and assumptions for the off-site infrastructure, waste disposal sites, as well as for the mine towns and open pit areas. The current closure criteria for the mine surface structures and the mine residue sites must be reviewed at this workshop. The workshop must cover physical and biophysical closure, which will be used to generate a Class 0 estimate
• Step A13: Generate/update spreadsheets for each layout drawing reflecting the main activities and structures as well as their substructures
• Step A14: Include estimated quantities for each structure/facility in the spreadsheet based on the following main cost items: reinforced and un-reinforced concrete (m3), sheeting (m2), steel to be demolished (ton), single and bubble brickwork (m2), earthworks (m3), rehabilitation (ha)
• Step A15: Obtain local closure (demolition/rehabilitation) contractor rates or adapt non-local rates to suit local conditions and use these in the closure cost spreadsheet
• Step A16: A physical closure estimate needs to be generated (Class 0 estimate) for an operation that is 25-15 years from closure. The closure cost for each facility needs to be reflected separately in the closure cost spreadsheet, that is linked to the relevant layout drawing
• Step A17: Ensure that any operational actions related to reducing the physical closure cost are incorporated into the operational methods and cost model
The biophysical closure gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3B of Tool 3 as follows:
• Step B6 (B1): Using the information obtained from generating the physical closure estimate of the project, identify the various biological and physical environments that will be affected by the mining operation during all phases (e.g. soil, water, biodiversity, etc.)
• Step B6 (B2): Using the information obtained from B6 (B1) and the outputs from Tool 1 (State of the Environment Report (SOER) and Rapid Strategic Environmental Assessment (SEA), if available) identify the current sensitivity of the various biological and physical environments in which the mining operation is taking place
• Step B7: Identify information gaps in the biophysical environment by evaluating available site specific information contained in reports (EIA, EMP, licences and other forms of information), specialist studies and using on-site expertise. Conduct an environmental assessment of the preliminary closure plan and identify all significant, uncertain and insignificant environmental risks
• Step B8: Appoint appropriate specialists (could be an appropriately qualified internal person) to conduct the necessary studies and rehabilitation trials to address the information gaps (uncertain risks). On completion of the studies, reassess the impact assessment referred to in B7 and prescribe appropriate mitigation measures, management measures and rehabilitation methods. (NB: undertake the rehabilitation trials as early as possible in the life of the mine)
• Step B9: The biophysical closure criteria must then be updated and the associated costs included in an overall Class 0 estimate
16 ANGLO AMERICAN MINE CLOSURE TOOLBOX
• Step B10: Determine if the operational rehabilitation/closure actions or the Environmental Management System (EMS) need to change, based on the latest information
The socio-economic closure gaps (related to employees) as identified in the gap analysis should be addressed by implement-ing the appropriate steps of Task 3C of Tool 3 as follows:
• Step C4 (C1): Generate a profile of the operation’s employees and their dependants (SEAT Tool 1A could be used)
• Step C4 (C2): Identify social closure criteria (including health), seek alignment with local industries to optimise potential future sharing of human resources and/or their development, and ensure provision is made for future reskilling, retraining, redeployment and retrenchment costs as part of the current operating or closure cost. Reflect the latest information on the employees’ capabilities and career aspirations and seek alignment with the operations’ business plan. Review and update the closure criteria/ assumptions and operating costs accordingly.
• Step C5: Identify potential additional closure costs associated with employees (not included in operating cost), i.e. potential relocation of families, specifically where retention of critical skills is required.
• Step C6: Update, where necessary, the social closure assumptions and criteria and update the current Class 0 estimate to reflect any additional closure costs associated with employees
• Step C7: Transfer the outputs from C6 into the overall closure estimate, as described in item E3 of Task 3E
The socio-economic closure gaps (related to I&APs and government) as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3D of Tool 3 as follows:
• Step D6 (D1): Commence with Tool 1 as early as possible in the life of mine to develop the following: the closure vision; final land use; infrastructure to remain; assessments of health impacts; etc. A rapid HIA is to be carried out at start-up and updated during the operation’s life of mine. (Refer to ICMM’s Good Practice Guidance on Heath Impact Assessment 2010, in conjunction with ICMM’s Good Practice Guidance on Occupational Health Risk Assessment 2009)
• Step D6 (D2): Based on the information obtained from D1, set up an internal workshop to discuss and identify the anticipated/potential needs and issues of I&APs related to closure, including a comprehensive overview of likely long-term (e.g. legacy of asbestos or silica exposure) and short-term health impacts
• Step D6: Ongoing HRAs have to be conducted, by involving the appropriate technical skills and expertise. The data from
the HRAs have to be incorporated into the environmental health assessments (detailed in the SEAT Tool 5J – Supporting community health issues)
• Step D7: Draw up a community profile and stakeholder engagement plan (SEP), (see SEAT Tools 2A and 2B to assist with profiling and consultation, as well as Tool 5J, which details support for community health issues)
• Step D8: Review the community profile and SEP
• Step D9: Implement the SEP to determine potential impacts, issues and needs of I&APs. (To ensure expectations are managed, consultation with respect to closure should only take place once a Preliminary Closure Plan has been developed that describes what the mine believes can and cannot be achieved at closure)
• Step D10: Summarise the I&AP issues and needs (see SEAT Tool 3A – Assessment of issues and impacts, to assist with this step)
• Step D11: Review the social and economic impacts of the operation on I&APs, using the outputs of D8 in an internal workshop
• Step D12: Using the outputs from D6 to D11, review and change, where necessary, the closure assumptions and criteria to reflect any additional social closure costs associated with I&APs (see SEAT Tool 6A – Developing a social management plan, to assist with this step) and generate a Class 0 estimate
• Step D13: Transfer the outputs from D12 into the overall closure estimate, as described in item E3 of Task 3E
• Step D14: Give formal feedback to I&APs (see SEAT Tool 7B – Sharing results of the SEAT process with stakeholders, to assist with this step) and determine whether operational rehabilitation/closure actions or the EMS need to change based on the latest information, by repeating step D5
The overall cost estimate gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3E of Tool 3 as follows:
• Step E3: Using the outputs from the physical closure cost estimate (A16), the biophysical cost estimate (B9), the socio-economic cost related to employees (C6), and the socio-economic cost related to I&APs and governments (D12), generate an overall Class 0 closure estimate
• Step E4: Assess any additional operating costs associated with closure and incorporate the identified operating costs, associated with the management and mitigation measures, into the mine’s EMS
The closure programme gaps should be addressed by implementing the appropriate steps of Task 3F of Tool 3 as follows:
EXAMPLE 2: COMPLETED GAP ANALYSIS AND ACTION PLAN USING TOOL 1, 2 AND 3 CONTINUED
17ANGLO AMERICAN MINE CLOSURE TOOLBOX
• Step F1: Based on the outputs from E3 and E4, draw up a preliminary closure programme, reflecting the main items in various areas (plant area, mining area, contractors area, waste disposal area, tailings disposal facilities, waste rock facilities, etc.) to be closed, and the areas to be rehabilitated, by scheduling the main closure and rehabilitation activities for each item (decommissioning, closure, demolition, rehabilitation and monitoring)
• Step F2: Using the output from F1, have an internal workshop and identify items that could be closed and rehabilitated during the operational phase, to minimise the closure workload at the end of the mine’s life and update the schedule accordingly. The programme must also include items such as ongoing monitoring, additional environmental studies to be conducted and rehabilitation trials to be done. Transfer the outputs from this step to G1 of Task 3G
The overall cash flow gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3G of Tool 3 as follows:
• Step G1: Based on the information from F2, update the mine’s current operating cash flow model ensuring that funds will be available for ongoing closure/rehabilitation activities, as well as for final mine closure activities
The financial provision gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3H of Tool 3 as follows:
• Step H3 (H1): Review the various methods of financial provision to ensure that the funds will be available for closing the mining operations
• Step H3 (H2): Select and implement the appropriate financing method (trust fund, bank guarantee, cash, or any other means of financing), if required
• Step H4: Based on the outputs from Step G1, ensure sufficient funds are available for ongoing closure and rehabilitation during the life of the operation and at the end of the mine’s life
The overall mine closure plan development gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3I of Tool 3 as follows:
• Step I 2: Using the outputs from A16, B9, C6, D12, E3, F2, G1 and H4 generate the Preliminary Closure Plan covering the minimum criteria set out below:
- Executive summary - Introduction - Regional State of the Environment - Mining lease baseline environment - Closure objectives - Closure standards - Closure policies - Legal closure requirements - Socio-economic environment (Rapid SEA) - I&AP consultation (I&AP issues and needs) - Closure vision with underlying principles - Final land use - Summary of residual environmental risks / impacts - Closure criteria - Closure cost estimate (drawings, assumptions) - Closure programme - Closure cash flow - Closure management plan (KPIs), targets - Closure monitoring and auditing protocols - Information gaps and required studies
PROJECT PHASE 2: FINAL CLOSURE PLAN DEVELOPMENTOnce the Preliminary Closure Plan has been generated, it can be utilised to consult with I&APs on the relevant mine closure issues. At this stage the mine would have a closure vision and a good understanding of the broad boundaries within which the mine can be closed.
The closure vision and what can be achieved at mine closure should form the basis of the consultation process with I&APs,
18 ANGLO AMERICAN MINE CLOSURE TOOLBOX
to ensure that expectations are managed in upgrading the Preliminary Closure Plan to a Final Closure Plan.
This phase will continue to address the gaps as identified for Phase 1, but the level of I&AP involvement and the accuracy of the estimate will be improved by aiming at obtaining approval for the final land use and associated closure criteria from government in collaboration with I&APs.
By using the steps as identified in Task 3A to Task 3I of Tool 3 of the Mine Closure Toolbox, the following physical, biophysical and socio-economic closure gaps need to be addressed in 2008/April 2009 in generating the Final Closure Plan.
The physical closure gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3A of Tool 3 as follows:
• Step A30 (A1 to A4 and A9 to A11): Surface layout drawings need to be updated, if required, to reflect all mine owned infrastructure as well as other infrastructure used by the mine that does not belong to the mine but could be a closure liability, to ensure that new structures are captured and demolished structures are removed
• Step A31: Update the physical closure criteria by taking into consideration the outputs of Steps B24, C18 & D31
• Step A32: To ensure the spreadsheet from Step A13 and the quantities from Step A14 are appropriate to a Class 2 level accuracy (and a subsequent Class 3 estimate one year from closure), appoint a qualified quantity surveyor to measure each item in detail for each facility/structure
• Step A33: Repeat Step A15 using more accurate/ current rates per item by obtaining tender rates from local contractors
• Step A34: Repeat step A16 using the outputs from Steps A30 to A33 to get to a Class 2 level accuracy, and a subsequent Class 3 estimate, prior to closure.
• Step A35: Using the outputs from A30 to A34, finalise the physical closure plan section of the overall mine closure plan
The biophysical closure gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3B of Tool 3 as follows:
• Step B22 (B1): Since Steps B1, B2 and B6 have been completed, review and update Step B6, if required, to ensure the current information is still accurate
• Step B23 (B2): Based on the outputs from B22, review B7 to B8 to
- Identify any information gaps in the biophysical environment, - Conduct the necessary studies to address the information
gaps, - Obtain, as early as possible in the life of the mine, final
agreement from the authorities on the rehabilitation
method, based on the proven rehabilitation and prepare the final rehabilitation plan, and
- Continue with rehabilitation, based on the final rehabilitation plan
• Step B24 (B14): Consult with I&AP as described in Task 3D, relating to the current rehabilitation plan, the success of the trials and the acceptability of the final rehabilitated land use and potential residual impacts
• Step B24: Redo Step B24 (B14) using the final rehabilitation plan, focussing on obtaining I&AP approval for the final rehabilitation plan and potential residual impacts (based on current proven rehabilitation methods)
• Step B25: Using the outputs from Step B22 to B24, generate a biophysical closure estimate to a Class 2 level accuracy, and a subsequent Class 3 estimate, prior to closure and finalise the biophysical closure plan section of the overall mine closure plan
The socio-economic closure gaps (related to employees) as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3C of Tool 3 as follows:
• Step C17 (C4): Review C1 and C2 to reflect the latest information on the employment profile and closure criteria, and update the operating costs accordingly
• Step C18: Obtain agreement with employees (unions) related to reskilling, retraining, redeployment and retrenchment through a collaborative process
• Step C19: Review and change where necessary the social closure assumptions and criteria to reflect any additional social closure costs associated with employees, and generate a Class 2 estimate, and a subsequent Class 3 estimate, one year from closure.
• Step C20: Transfer the outputs from C19 into the overall closure estimate, as described in item E12 of Task 3E.
• Step C21: Continue with Step C15.
The socio-economic closure gaps (related to I&APs and government) as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3D of Tool 3 as follows:
• Step D28: Review and update D1 to D2 and D6, if required, D2 to ensure the output from Tool 1 is still relevant. In addition, an evaluation of the operation and its potential impacts on local communities’ health and well-being should be undertaken at regular intervals, e.g. every 3 years, by an independent agency as part of an adaptive operational management process (refer also to ICMM’s Community Development Toolkit, 2010).
• Step D29: Review and update the SEP as defined in D7 and D8, if required, and
EXAMPLE 2: COMPLETED GAP ANALYSIS AND ACTION PLAN USING TOOL 1, 2 AND 3 CONTINUED
19ANGLO AMERICAN MINE CLOSURE TOOLBOX
- Continue with implementing D9, - Consult with I&APs, and - Establish a stakeholder steering group to discuss the
current closure assumptions, alternative land uses, the communities’ post-closure viability and other closure related issues (see SEAT 3 to assist with this step).
• Step D30: Confirm through consultation the final closure criteria, final land use and other closure related requirements, by collaborating with I&APs and making them part of the mine closure solution
• Step D31: Obtain general agreement from I&APs on the final closure plan
• Step D32: Using the outputs from D28 to D31, review and change, where necessary, the closure assumptions and criteria to reflect the final socio-economic closure costs associated with I&APs (see SEAT 3 to assist with this step) and generate a Class 2, and a subsequent Class 3 estimate, prior to closure
• Step D33: Transfer the outputs from D32 into the overall closure estimate
• Step D34: Using the outputs from D28 to D33, finalise the social closure plan section of the overall mine closure plan
The overall cost estimate gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3E of Tool 3 as follows:
• Step E12: Using the outputs from A34, B25, C19 and D32, generate a Class 2, and a subsequent Class 3 estimate, one year from closure
• Step E13: Inform I&APs regarding the information obtained from E12 and update the mine’s operating cost model accordingly
• Step E14: Obtain I&APs’ general agreement and government approval relating to the information obtained from E12.
The closure programme gaps should be addressed by implementing the appropriate steps of Task 3F of Tool 3 as follows:
• Step F7: Review and update Steps F1 and F2 using the additional information obtained from Steps E12 and E13, and update the programme by splitting the actions even further into more activities and by allocating more realistic timeframes and durations to the activities, based on current experience. (Contractors tendering for the final demolition and rehabilitation must supply a detailed closure programme.) Transfer the outputs from this step to G4 of Task 3G
• Step F8: Obtain I&APs’ general agreement relating to the information obtained from F7 using Task 3D
The overall cash flow gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3G of Tool 3 as follows:
• Step G4: Based on the information from Step F7, update the mine’s current operating and closure cash flow model as well as its contributions to financial provision for mine closure
The financial provision gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3H of Tool 3 as follows:
• Step H9 (H3): Review Step H3 (H1 to H2)
• Step H10: Redo Step H4 based on the outputs from Step G4
The overall mine closure plan development gaps as identified in the gap analysis should be addressed by implementing the appropriate steps of Task 3I of Tool 3 as follows:
• Step I5: Using the outputs from A34, B25, C19, D32, E12, F7, G4 and H10 update the Preliminary Closure Plan to a Final Closure Plan, covering the minimum criteria set out below:
- Executive summary - Introduction - Regional State of the Environment - Mining lease baseline environment - Closure objectives - Closure standards - Closure policies - Legal closure requirements - Socio-economic environment (Rapid SEA) - I&AP consultation (I&AP issues and needs) - Closure vision with underlying principles - Final land use - Summary of residual environmental risks / impacts - Closure criteria - Closure cost estimate (drawings, assumptions) - Closure programme - Closure cash flow - Closure management plan (KPIs), targets - Closure monitoring and auditing protocols. - Information gaps and required studies
CONCLUSIONShould the required activities, as listed above, be implemented effectively over the next 18 months, Mine B should have a complete Preliminary Closure Plan by end 2007, that could be converted, over the next 18 months into a Final Closure Plan, in line with the requirements of the last column of the gap analysis spreadsheet “5-0 years” prior to the estimated scheduled mine closure in 2008 / April 2009.
20 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Physical closure
Surface closure
Mine surface area structures: The mine has 1 plant (4ha), including workshops, offices, stores, plant fencing, and other infrastructure.
Reference: Presentation by mine – June 2007; Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed closure criteria Reviewed closure criteria Tested closure criteria: Based on the information contained in the current closure report, the closure criteria are well defined, but no consultation has taken place with I&APs to confirm the acceptability of the closure criteria.
Proven closure criteria Agreed closure criteria
Initial cost estimate Class 0 estimate: The physical closure criteria as calculated in the current report and the more recently updated closure cost calculation that was done by the mine, are a Class 0 estimate. To improve this estimate, actual detailed quantities will have to be calculated for each structure as reflected on a layout drawing with reference to the cost estimate in a spreadsheet. More accurate onsite rates must be used.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Mine residue sites: The Fine Residue Dump (FRD), Coarse Residue Dumps (CRD) and waste rock material are all combined into one consolidated disposal system.
Reference: Presentation by mine – June 2007; Preliminary Closure Plan and cost estimate for the mine – March 2003. General layout drawing dated January 2007.
Assumed closure criteria Reviewed closure criteria Tested closure criteria: The current closure criteria are well defined and have been implemented successfully for more than 5 years at the mine. The acceptability of the closure criteria must now be discussed with I&AP through a consultation process.
Proven closure criteria Agreed closure criteria
Initial cost estimate Class 0 estimate: The current closure estimate for the residue sites is that of a Class 0 estimate since the national rates are being used. The estimate must be improved by using the actual onsite costs that are available and by accurately estimating what will have to be closed at end of LOM.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Offsite surface infrastructure: The offsite surface infrastructure on the current property constitutes some power lines (7km), overland water supply lines (wellfields), dirt roads (dust suppression) and some telephone lines.
Reference: Presentation by mine – June 2007; Preliminary Closure Plan and cost estimate for the mine – March 2003. General layout drawing dated January 2007.
Assumed closure criteria Reviewed closure criteria Tested closure criteria: The closure criteria for surface infrastructure are well defined. The criteria currently state that most of this infrastructure will remain post closure. This needs to be reviewed in consultation with I&APs.
Proven closure criteria Agreed closure criteria
Initial cost estimate: Not all the potential closure costs have been included in the current closure estimate. The mine might have to re-establish farm boundary fences at closure. The initial estimate in the current closure report needs to be improved by firming up on rates and by confirming actual quantities.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007
21ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Physical closure
Surface closure
Mine surface area structures: The mine has 1 plant (4ha), including workshops, offices, stores, plant fencing, and other infrastructure.
Reference: Presentation by mine – June 2007; Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed closure criteria Reviewed closure criteria Tested closure criteria: Based on the information contained in the current closure report, the closure criteria are well defined, but no consultation has taken place with I&APs to confirm the acceptability of the closure criteria.
Proven closure criteria Agreed closure criteria
Initial cost estimate Class 0 estimate: The physical closure criteria as calculated in the current report and the more recently updated closure cost calculation that was done by the mine, are a Class 0 estimate. To improve this estimate, actual detailed quantities will have to be calculated for each structure as reflected on a layout drawing with reference to the cost estimate in a spreadsheet. More accurate onsite rates must be used.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Mine residue sites: The Fine Residue Dump (FRD), Coarse Residue Dumps (CRD) and waste rock material are all combined into one consolidated disposal system.
Reference: Presentation by mine – June 2007; Preliminary Closure Plan and cost estimate for the mine – March 2003. General layout drawing dated January 2007.
Assumed closure criteria Reviewed closure criteria Tested closure criteria: The current closure criteria are well defined and have been implemented successfully for more than 5 years at the mine. The acceptability of the closure criteria must now be discussed with I&AP through a consultation process.
Proven closure criteria Agreed closure criteria
Initial cost estimate Class 0 estimate: The current closure estimate for the residue sites is that of a Class 0 estimate since the national rates are being used. The estimate must be improved by using the actual onsite costs that are available and by accurately estimating what will have to be closed at end of LOM.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Offsite surface infrastructure: The offsite surface infrastructure on the current property constitutes some power lines (7km), overland water supply lines (wellfields), dirt roads (dust suppression) and some telephone lines.
Reference: Presentation by mine – June 2007; Preliminary Closure Plan and cost estimate for the mine – March 2003. General layout drawing dated January 2007.
Assumed closure criteria Reviewed closure criteria Tested closure criteria: The closure criteria for surface infrastructure are well defined. The criteria currently state that most of this infrastructure will remain post closure. This needs to be reviewed in consultation with I&APs.
Proven closure criteria Agreed closure criteria
Initial cost estimate: Not all the potential closure costs have been included in the current closure estimate. The mine might have to re-establish farm boundary fences at closure. The initial estimate in the current closure report needs to be improved by firming up on rates and by confirming actual quantities.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
22 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Waste disposal facilities: The mine does not have a licensed disposal site, and uses their temporary domestic site, which operates as a transfer station to the local municipal site for disposal. A 3rd party disposes of all hazardous waste (18 ton per quarter) and all hydrocarbon waste.
Reference: Presentation by the mine – 5 June 2007. General layout drawing dated January 2007.
Assumed closure criteria: Although current waste disposal system is operating effectively, the final disposal of demolition material as well as hazardous and non-hazardous waste still needs to be determined. A material balance needs to be generated reflecting the quantities of material that will require disposal at closure.
Reviewed closure criteria Tested closure criteria Proven closure criteria Agreed closure criteria
Initial cost estimate: The potential cost of hazardous and non-hazardous waste disposal has not been included in the current closure estimate. It might be acceptable to include one quarter waste to be handled post closure in the overall closure cost estimate. The preferred demolition rubble waste disposal site needs to be identified in consultation with I&APs and government.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Social Infrastructure: The current property contains 8 management houses, a lapa with wooden cabins (8 units) a caravan park (4 units) a train (mobile home), mobile units (5), a shed that was converted (2 units) and the single quarters (3 pre-fabricated units).
Reference: Presentation by mine – June 2007; Preliminary Closure Plan and cost estimate for the mine – March 2003. General layout drawing dated January 2007.
Assumed closure criteria: The current closure criteria assume that most of the housing will remain post closure. This assumption needs to be workshopped and the reviewed criteria need to be discussed with I&APs.
Reviewed closure criteria Tested closure criteria Proven closure criteria Agreed closure criteria
Initial cost estimate: The previous estimate did include some provision to remove some of the housing units, while the latest mine estimate does not include the removal of any of the housing. Once the closure criteria have been confirmed, the closure estimate needs to be updated accordingly.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Mining area closure
Open pit area: The open pit area is approximately 11ha.
Assumed closure criteria: The closure criteria for the pit are well defined in the current closure report. The criteria need to be reviewed in consultation with I&APs and government. The closure criteria to address the ground water impact associated with the pit need to be incorporated into the closure criteria.
Reviewed closure criteria Tested closure criteria Proven closure criteria Agreed closure criteria
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 continued
23ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Waste disposal facilities: The mine does not have a licensed disposal site, and uses their temporary domestic site, which operates as a transfer station to the local municipal site for disposal. A 3rd party disposes of all hazardous waste (18 ton per quarter) and all hydrocarbon waste.
Reference: Presentation by the mine – 5 June 2007. General layout drawing dated January 2007.
Assumed closure criteria: Although current waste disposal system is operating effectively, the final disposal of demolition material as well as hazardous and non-hazardous waste still needs to be determined. A material balance needs to be generated reflecting the quantities of material that will require disposal at closure.
Reviewed closure criteria Tested closure criteria Proven closure criteria Agreed closure criteria
Initial cost estimate: The potential cost of hazardous and non-hazardous waste disposal has not been included in the current closure estimate. It might be acceptable to include one quarter waste to be handled post closure in the overall closure cost estimate. The preferred demolition rubble waste disposal site needs to be identified in consultation with I&APs and government.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Social Infrastructure: The current property contains 8 management houses, a lapa with wooden cabins (8 units) a caravan park (4 units) a train (mobile home), mobile units (5), a shed that was converted (2 units) and the single quarters (3 pre-fabricated units).
Reference: Presentation by mine – June 2007; Preliminary Closure Plan and cost estimate for the mine – March 2003. General layout drawing dated January 2007.
Assumed closure criteria: The current closure criteria assume that most of the housing will remain post closure. This assumption needs to be workshopped and the reviewed criteria need to be discussed with I&APs.
Reviewed closure criteria Tested closure criteria Proven closure criteria Agreed closure criteria
Initial cost estimate: The previous estimate did include some provision to remove some of the housing units, while the latest mine estimate does not include the removal of any of the housing. Once the closure criteria have been confirmed, the closure estimate needs to be updated accordingly.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Mining area closure
Open pit area: The open pit area is approximately 11ha.
Assumed closure criteria: The closure criteria for the pit are well defined in the current closure report. The criteria need to be reviewed in consultation with I&APs and government. The closure criteria to address the ground water impact associated with the pit need to be incorporated into the closure criteria.
Reviewed closure criteria Tested closure criteria Proven closure criteria Agreed closure criteria
24 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Mining area closure continued
Reference: Preliminary closure plan and cost estimate for the mine – March 2003. General layout drawing dated January 2007.
Initial cost estimate Class 0 estimate: The current closure estimate for the pit is that of a Class 0 estimate since the national master rates are being used. The estimate must be improved by using the actual onsite costs that are available and by accurately estimating what will have to be closed at end of LOM.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Biophysical closure/rehabilitation
Biodiversity: The mine owns 5300ha of which approximately 55.6ha will be disturbed by the mining operation. No Red-data species are present on the site and the area is not a biodiversity hotspot.
Reference: Environmental impact study; Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts Assessed impacts: The potential impacts on biodiversity have been assessed in the studies that were done as part of the mine’s environmental impact study. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government.
Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method Assessed rehabilitation Tested rehabilitation – method: The current closure criteria are well defined and have been implemented successfully for more than 5 years at the mine. The acceptability of the closure criteria must now be discussed with I&AP through a consultation process.
Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate Class 0 estimate: The current closure estimate for the residue sites is that of a Class 0 estimate since the national master rates are being used. The estimate must be improved by using the actual onsite costs that are available. Potential additional costs, based on the risk assessment must also be included in the updated cost estimate.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Protected (sensitive) habitats/ ecosystems: 2 pans in the area are not impacted on by the mining operation.
Reference: Environmental impact study dated June 2004 by XXX Consultant.
Assumed impacts: No residual impact is expected. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 continued
25ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Mining area closure continued
Reference: Preliminary closure plan and cost estimate for the mine – March 2003. General layout drawing dated January 2007.
Initial cost estimate Class 0 estimate: The current closure estimate for the pit is that of a Class 0 estimate since the national master rates are being used. The estimate must be improved by using the actual onsite costs that are available and by accurately estimating what will have to be closed at end of LOM.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Biophysical closure/rehabilitation
Biodiversity: The mine owns 5300ha of which approximately 55.6ha will be disturbed by the mining operation. No Red-data species are present on the site and the area is not a biodiversity hotspot.
Reference: Environmental impact study; Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts Assessed impacts: The potential impacts on biodiversity have been assessed in the studies that were done as part of the mine’s environmental impact study. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government.
Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method Assessed rehabilitation Tested rehabilitation – method: The current closure criteria are well defined and have been implemented successfully for more than 5 years at the mine. The acceptability of the closure criteria must now be discussed with I&AP through a consultation process.
Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate Class 0 estimate: The current closure estimate for the residue sites is that of a Class 0 estimate since the national master rates are being used. The estimate must be improved by using the actual onsite costs that are available. Potential additional costs, based on the risk assessment must also be included in the updated cost estimate.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Protected (sensitive) habitats/ ecosystems: 2 pans in the area are not impacted on by the mining operation.
Reference: Environmental impact study dated June 2004 by XXX Consultant.
Assumed impacts: No residual impact is expected. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
26 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Assumed rehabilitation method: No rehabilitation required at this stage since there has been no direct impact on the pans. The zero impact on the pans needs to be confirmed by the appropriate studies in consultation with I&APs and government.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the current closure estimate. There might be additional cost depending on the confirmation of zero impact by the required detailed study.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Groundwater: No impacts have been detected from mine residue facilities (pollution). The post-closure impact from a water resource point of view is still in progress.
Reference: Initial groundwater report dated – Jan 2005, done by XXX Consultant.
Assumed impacts: Currently no significant negative impacts are expected. There is a need to confirm quality relative baseline and the potential. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government. This will include the specific issues such as the impact on the ground water resource post closure, as well as the impact of evaporation in the pit.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No rehabilitation is envisaged at this point. This could change based on the outcome of the environmental risk report.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the environmental risk report.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 continued
27ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Assumed rehabilitation method: No rehabilitation required at this stage since there has been no direct impact on the pans. The zero impact on the pans needs to be confirmed by the appropriate studies in consultation with I&APs and government.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the current closure estimate. There might be additional cost depending on the confirmation of zero impact by the required detailed study.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Groundwater: No impacts have been detected from mine residue facilities (pollution). The post-closure impact from a water resource point of view is still in progress.
Reference: Initial groundwater report dated – Jan 2005, done by XXX Consultant.
Assumed impacts: Currently no significant negative impacts are expected. There is a need to confirm quality relative baseline and the potential. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government. This will include the specific issues such as the impact on the ground water resource post closure, as well as the impact of evaporation in the pit.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No rehabilitation is envisaged at this point. This could change based on the outcome of the environmental risk report.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the environmental risk report.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
28 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Surface water (including oceans, lakes, etc. if applicable): No impacts expected at this stage. The post-closure impact from evaporation from the pit needs to be investigated.
Reference: Initial surface water report dated – Jan 2004, done by XXX Consultant.
Assumed impacts: No post-closure impacts are envisaged at this stage. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government. This will include the impact of evaporation in the pit.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No rehabilitation is envisaged at this point. This could change based on the outcome of the environmental risk report.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreead rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the environmental risk report.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Air quality: Fall out dust monitoring is taking place.
Reference: Onsite monitoring programme; Environmental impact study.
Assumed impacts: No post-closure impacts are envisaged at this stage. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No rehabilitation is envisaged at this point. This could change based on the outcome of the environmental risk report.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the environmental risk report.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 continued
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
29ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Surface water (including oceans, lakes, etc. if applicable): No impacts expected at this stage. The post-closure impact from evaporation from the pit needs to be investigated.
Reference: Initial surface water report dated – Jan 2004, done by XXX Consultant.
Assumed impacts: No post-closure impacts are envisaged at this stage. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government. This will include the impact of evaporation in the pit.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No rehabilitation is envisaged at this point. This could change based on the outcome of the environmental risk report.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreead rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the environmental risk report.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Air quality: Fall out dust monitoring is taking place.
Reference: Onsite monitoring programme; Environmental impact study.
Assumed impacts: No post-closure impacts are envisaged at this stage. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No rehabilitation is envisaged at this point. This could change based on the outcome of the environmental risk report.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the environmental risk report.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
30 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Soil: The area has a low agricultural value, with a grazing potential of 1 unit of livestock per 15ha.
Reference: Environmental impact study, Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts: No post-closure impacts are envisaged at this stage. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No rehabilitation is envisaged at this point. This could change based on the outcome of the environmental risk report.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional cost has been included in the estimate. This could change based on the outcome of the environmental risk report.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Land capability: The area has a low agricultural value, with a grazing potential of 1 unit of livestock per 15ha.
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts: The acceptability of the residual impact on land capability has been identified but still needs to be confirmed in discussion with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No additional rehabilitation is envisaged at this point. This could change based on the outcome of the consultation with I&APs and government.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the consultation with I&APs and government.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Land use: Previous land use was grazing, game farming and some tobacco farming.
Reference: Preliminary Closure Plan and cost estimate for the mine – old-fashioned March 2003 Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts: The acceptability of the residual impact on land capability needs to be confirmed in discussion with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 continued
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
31ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Soil: The area has a low agricultural value, with a grazing potential of 1 unit of livestock per 15ha.
Reference: Environmental impact study, Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts: No post-closure impacts are envisaged at this stage. An environmental risk report based on an initial screening level risk assessment and a second level risk assessment must be done to identify potential significant risks, insignificant risks as well as to identify and agree on management measures to be implemented in consultation with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No rehabilitation is envisaged at this point. This could change based on the outcome of the environmental risk report.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional cost has been included in the estimate. This could change based on the outcome of the environmental risk report.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Land capability: The area has a low agricultural value, with a grazing potential of 1 unit of livestock per 15ha.
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts: The acceptability of the residual impact on land capability has been identified but still needs to be confirmed in discussion with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No additional rehabilitation is envisaged at this point. This could change based on the outcome of the consultation with I&APs and government.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the consultation with I&APs and government.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Land use: Previous land use was grazing, game farming and some tobacco farming.
Reference: Preliminary Closure Plan and cost estimate for the mine – old-fashioned March 2003 Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts: The acceptability of the residual impact on land capability needs to be confirmed in discussion with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
32 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Assumed rehabilitation method: No additional rehabilitation is envisaged at this point. The final land use is based on game farming & ecotourism. This could change based on the outcome of the consultation with I&APs and government.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the consultation with I&APs and government.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Topography/visual: The maximum height of the residue facilities was set at 20m, with 18 degree side slopes and full vegetation cover.
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts: All structures are less than 15m above the tree line (20m max height of facilities). The acceptability of the residual visual impact needs to be confirmed with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No additional rehabilitation is envisaged at this point. This could change based on the outcome of the consultation with I&APs and government.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the consultation with I&APs and government.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Social closure (Including health)
Employees and their dependants: The mine currently employs 61 permanent staff and 72 contract staff.
Reference: Presentation by mine – 5 June 2007.
Assumed needs: Only an initial profile of the mine’s employees has been generated. The employee profile must be updated and the provision made for future reskilling and training must be reviewed. The reskilling and training initiatives must complement the final land use and address the needs of the employees. Only a rapid health impact assessment (HIA) has been carried out to date.
Assessed needs Confirmed needs Proven needs Agreed needs
No specific consultation: No consultation has taken place with the unions/employees to date. An engagement plan must be drawn up to facilitate the consultation process.
No specific consultation Consult Involve Collaborate
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 continued
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
33ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Assumed rehabilitation method: No additional rehabilitation is envisaged at this point. The final land use is based on game farming & ecotourism. This could change based on the outcome of the consultation with I&APs and government.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the consultation with I&APs and government.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Topography/visual: The maximum height of the residue facilities was set at 20m, with 18 degree side slopes and full vegetation cover.
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003.
Assumed impacts: All structures are less than 15m above the tree line (20m max height of facilities). The acceptability of the residual visual impact needs to be confirmed with I&APs and government.
Assessed impacts Confirmed impacts Proven mitigation criteria Agreed mitigation criteria
Assumed rehabilitation method: No additional rehabilitation is envisaged at this point. This could change based on the outcome of the consultation with I&APs and government.
Assessed rehabilitation Tested rehabilitation method Proven rehabilitation method Agreed rehabilitation method
Initial cost estimate: No additional costs have been included in the estimate. This could change based on the outcome of the consultation with I&APs and government.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Social closure (Including health)
Employees and their dependants: The mine currently employs 61 permanent staff and 72 contract staff.
Reference: Presentation by mine – 5 June 2007.
Assumed needs: Only an initial profile of the mine’s employees has been generated. The employee profile must be updated and the provision made for future reskilling and training must be reviewed. The reskilling and training initiatives must complement the final land use and address the needs of the employees. Only a rapid health impact assessment (HIA) has been carried out to date.
Assessed needs Confirmed needs Proven needs Agreed needs
No specific consultation: No consultation has taken place with the unions/employees to date. An engagement plan must be drawn up to facilitate the consultation process.
No specific consultation Consult Involve Collaborate
34 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Initial cost estimate Class 0 estimate: The costs of retrenchment, reskilling and training have been included in the mine’s operating cost model. The current needs of employees (training, reskilling) have not been confirmed. This could have an impact on the closure costing.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Affected parties: Neighbouring farmers, contractors, suppliers, local and tribal authorities, local schools.
Reference: Presentation by mine – 5 June 2007.
Assumed needs: A database is available. A social scan was done in 2004 (SEAT – profiling of communities). Needs assessment was done for the current fund – local schools and labour sending areas. The socio-economic opportunities and constraints that the environment offers in relation to mine closure should be assessed by compiling a State of the Environment Report (SOER) and by conducting a Rapid Strategic Environmental Assessment (SEA). The needs of I&AP and government should be addressed within this context, through a consultation process. Only a rapid health impact assessment (HIA) has been carried out to date.
Assessed needs Confirmed needs Proven needs Agreed needs
No specific consultation: A community profile must be generated and a stakeholder engagement plan (SEP) must be drawn up and implemented to obtain confidence in the closure criteria, closure vision and underlying principles (final land use).
Inform Consult Involve Collaborate
Initial cost estimate: No specific closure cost has been included in the estimate to date. The potential additional costs related to socio-economic development opportunities should be estimated and included in the estimate.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 continued
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
35ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Initial cost estimate Class 0 estimate: The costs of retrenchment, reskilling and training have been included in the mine’s operating cost model. The current needs of employees (training, reskilling) have not been confirmed. This could have an impact on the closure costing.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Affected parties: Neighbouring farmers, contractors, suppliers, local and tribal authorities, local schools.
Reference: Presentation by mine – 5 June 2007.
Assumed needs: A database is available. A social scan was done in 2004 (SEAT – profiling of communities). Needs assessment was done for the current fund – local schools and labour sending areas. The socio-economic opportunities and constraints that the environment offers in relation to mine closure should be assessed by compiling a State of the Environment Report (SOER) and by conducting a Rapid Strategic Environmental Assessment (SEA). The needs of I&AP and government should be addressed within this context, through a consultation process. Only a rapid health impact assessment (HIA) has been carried out to date.
Assessed needs Confirmed needs Proven needs Agreed needs
No specific consultation: A community profile must be generated and a stakeholder engagement plan (SEP) must be drawn up and implemented to obtain confidence in the closure criteria, closure vision and underlying principles (final land use).
Inform Consult Involve Collaborate
Initial cost estimate: No specific closure cost has been included in the estimate to date. The potential additional costs related to socio-economic development opportunities should be estimated and included in the estimate.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
36 ANGLO AMERICAN MINE CLOSURE TOOLBOX
GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 continued
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Interested parties: NGO, local development company. There are not a lot of interested parties in the region. Provincial and National government as well as the Department of Tourism could be included in the category.
Reference: Presentation by mine – 5 June 2007.
Assumed needs: Limited input into regional and national plans has been captured in the current Mine Closure Plan. The requirements of the Local Economic Development (LED) plans and the Integrated Development plans (IDPs) must be incorporated in the mine closure planning.
Assessed needs Assessed needs Proven needs Agreed needs
No specific consultation: A community profile must be generated and a community engagement plan (CEP) must be drawn up and implemented to obtain confidence in the closure criteria, closure vision and underlying principles (final land use).
Inform Consult Involve Collaborate
Initial cost estimate: No specific closure cost has been included in the estimate to date. The potential additional costs related to socio-economic development opportunities should be estimated and included in the estimate.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Authorities: Regional and national (health and safety & environment & mineral regulations), Department of Water Affairs, Department of Environmental and Tourism affairs, Department of Agriculture, Department of Labour, local authorities, Receiver of Revenue.
Reference: Closure gap meeting held on 5 June 2007.
Assumed needs Assessed needs: Government’s needs have been assessed through the environmental licensing process. Their needs must be confirmed through an ongoing consultation process and agreement on the final land use and criteria must be obtained.
Confirmed needs Proven needs Agreed needs
No specific consultation Inform: Consultation mainly took place through the environmental licensing process. Specific mine closure consultation with government must be planned and executed focussing on obtaining agreement on the final land use and closure criteria.
Consult Involve Collaborate
Initial cost estimate Class 0 estimate: No additional cost other than that associated with the closure criteria as contained in the approved environmental licence has been included in the current closure cost estimate. Government’s closure requirement needs to be re-evaluated and the closure cost updated if required.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
37ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
Interested parties: NGO, local development company. There are not a lot of interested parties in the region. Provincial and National government as well as the Department of Tourism could be included in the category.
Reference: Presentation by mine – 5 June 2007.
Assumed needs: Limited input into regional and national plans has been captured in the current Mine Closure Plan. The requirements of the Local Economic Development (LED) plans and the Integrated Development plans (IDPs) must be incorporated in the mine closure planning.
Assessed needs Assessed needs Proven needs Agreed needs
No specific consultation: A community profile must be generated and a community engagement plan (CEP) must be drawn up and implemented to obtain confidence in the closure criteria, closure vision and underlying principles (final land use).
Inform Consult Involve Collaborate
Initial cost estimate: No specific closure cost has been included in the estimate to date. The potential additional costs related to socio-economic development opportunities should be estimated and included in the estimate.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Authorities: Regional and national (health and safety & environment & mineral regulations), Department of Water Affairs, Department of Environmental and Tourism affairs, Department of Agriculture, Department of Labour, local authorities, Receiver of Revenue.
Reference: Closure gap meeting held on 5 June 2007.
Assumed needs Assessed needs: Government’s needs have been assessed through the environmental licensing process. Their needs must be confirmed through an ongoing consultation process and agreement on the final land use and criteria must be obtained.
Confirmed needs Proven needs Agreed needs
No specific consultation Inform: Consultation mainly took place through the environmental licensing process. Specific mine closure consultation with government must be planned and executed focussing on obtaining agreement on the final land use and closure criteria.
Consult Involve Collaborate
Initial cost estimate Class 0 estimate: No additional cost other than that associated with the closure criteria as contained in the approved environmental licence has been included in the current closure cost estimate. Government’s closure requirement needs to be re-evaluated and the closure cost updated if required.
Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
38 ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
General issues
Overall cost estimate: Initial estimate was done and this was updated by the mine.
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003; Updated mine estimate.
Initial estimate: The estimate dated 2003 and the updated mine estimate dated 2007 are still initial, based on the lack of well defined and proven closure criteria and the lack of I&AP consultation and government agreement. The estimate must be upgraded to a Class 0 estimate by the end of 2007 and a Class 3 estimate in early 2009.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Closure programme: Current mine programme.
Reference: Closure gap meeting held in June 2007.
Proposed programme: The current mine programme needs to be updated to reflect the ongoing closure activities and the final decommissioning, closure and after care and monitoring activities. The programme must be linked to a cash flow that will consider operational as well as closure and post-closure costs.
Linked programme Linked programme Final programme
Overall cash flow: No specific closure programme or cash flow is available.
Reference: Closure gap meeting held in June 2007.
Initial cash flow: The current mine programme needs to be updated to reflect the ongoing closure activities and the final decommissioning, closure and after care and monitoring activities. The programme must be linked to a cash flow that will consider operational as well as closure and post-closure costs.
Linked cash flow Linked cash flow Final cash flow
Financial provision: Insurance policy and some guarantees are currently in place.
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003.
Select funding method Financial provision (Class 0): The current insurance policy financial guarantees need to be re-evaluated pending the outcome of the updated Mine Closure Plan and estimate and financial provision needs to update accordingly.
Financial provision (Improved Class 0) Financial provision (Class 1) Financial provision (Class 2 to 3)
Overall Closure Plan:
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003.
Preliminary Closure Plan: The mine has a Mine Closure Plan, but this plan does not include all the items as required for a Preliminary Mine Closure Plan.
Draft mine closure plan Detailed mine closure plan Final mine closure plan
APPENDIX A: GAP ANALYSIS SPREADSHEET – 5 JUNE 2007 CONTINUED
39ANGLO AMERICAN MINE CLOSURE TOOLBOX
Time remaining to scheduled closure More than 25 years 25-15 years 15-10 years 10-5 years 5-0 years
ITEM DESCRIPTION PRELIMINARY CLOSURE PLAN DRAFT CLOSURE PLAN DETAILED CLOSURE PLAN FINAL CLOSURE PLAN
General issues
Overall cost estimate: Initial estimate was done and this was updated by the mine.
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003; Updated mine estimate.
Initial estimate: The estimate dated 2003 and the updated mine estimate dated 2007 are still initial, based on the lack of well defined and proven closure criteria and the lack of I&AP consultation and government agreement. The estimate must be upgraded to a Class 0 estimate by the end of 2007 and a Class 3 estimate in early 2009.
Class 0 estimate Improved Class 0 estimate Class 1 estimate Class 2 estimate & Class 3 estimate 1 year from closure
Closure programme: Current mine programme.
Reference: Closure gap meeting held in June 2007.
Proposed programme: The current mine programme needs to be updated to reflect the ongoing closure activities and the final decommissioning, closure and after care and monitoring activities. The programme must be linked to a cash flow that will consider operational as well as closure and post-closure costs.
Linked programme Linked programme Final programme
Overall cash flow: No specific closure programme or cash flow is available.
Reference: Closure gap meeting held in June 2007.
Initial cash flow: The current mine programme needs to be updated to reflect the ongoing closure activities and the final decommissioning, closure and after care and monitoring activities. The programme must be linked to a cash flow that will consider operational as well as closure and post-closure costs.
Linked cash flow Linked cash flow Final cash flow
Financial provision: Insurance policy and some guarantees are currently in place.
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003.
Select funding method Financial provision (Class 0): The current insurance policy financial guarantees need to be re-evaluated pending the outcome of the updated Mine Closure Plan and estimate and financial provision needs to update accordingly.
Financial provision (Improved Class 0) Financial provision (Class 1) Financial provision (Class 2 to 3)
Overall Closure Plan:
Reference: Preliminary Closure Plan and cost estimate for the mine – March 2003.
Preliminary Closure Plan: The mine has a Mine Closure Plan, but this plan does not include all the items as required for a Preliminary Mine Closure Plan.
Draft mine closure plan Detailed mine closure plan Final mine closure plan
40 ANGLO AMERICAN MINE CLOSURE TOOLBOX
APPENDIX B: PROJECT PHASE 1 AND 2: PRELIMINARY & FINAL CLOSURE PLAN PROGRAMME
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17C
OM
PIL
E/U
PD
ATE
CLO
SU
RE
ES
TIM
ATE
SP
RE
AD
SH
EE
TS
10 d
ays
Mon
10/
8/07
Fri 1
0/19
/07
18O
BTA
IN A
CC
UR
ATE
RA
TES
- LO
CA
L TE
ND
ER
RA
TES
10 d
ays
Mon
10/
8/07
Fri 1
0/19
/07
19G
EN
ER
ATE
A C
LAS
S 2
ES
TIM
ATE
10 d
ays
Mon
10/
22/0
7Fr
i 11/
2/07
20R
EV
IEW
, FIN
ALI
SE
DR
AW
ING
S &
CLA
SS
2 E
STI
MA
TE5
days
Mon
9/1
5/08
Fri 9
/19/
08
21M
INE
RES
IDU
E SI
TES
295
days
Mon
8/6
/07
Fri 9
/19/
0822
PREL
IMIN
AR
Y PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 0
)35
day
sM
on 8
/6/0
7Fr
i 9/2
1/07
23G
EN
ER
ATE
LA
YO
UT
DR
AW
ING
S
10 d
ays
Mon
8/6
/07
Fri 8
/17/
07
24D
EV
IDE
TH
E D
RA
WIN
GS
INTO
AP
PR
OP
RIA
TE W
OR
KA
BLE
SH
EE
TS5
days
Mon
8/2
0/07
Fri 8
/24/
07
25G
EN
ER
ATE
/ U
PD
ATE
A S
PR
EA
DS
HE
ET
CO
NTA
ININ
G A
LL S
TRU
CTU
RE
S (I
TEM
ISE
EA
CH
STR
UC
TUR
10 d
ays
Mon
8/2
7/07
Fri 9
/7/0
7
26G
EN
ER
ATE
CLA
SS
0 E
STI
MA
TE10
day
sM
on 9
/10/
07Fr
i 9/2
1/07
27FI
NA
L PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)26
0 da
ysM
on 9
/24/
07Fr
i 9/1
9/08
28R
EV
IEW
& U
PD
ATE
TH
E C
LOS
UR
E C
RIT
ER
IA
10 d
ays
Mon
9/2
4/07
Fri 1
0/5/
07
29C
OM
PIL
E/U
PD
ATE
CLO
SU
RE
ES
TIM
ATE
SP
RE
AD
SH
EE
TS
10 d
ays
Mon
10/
8/07
Fri 1
0/19
/07
30O
BTA
IN A
CC
UR
ATE
RA
TES
- LO
CA
L TE
ND
ER
RA
TES
10 d
ays
Mon
10/
8/07
Fri 1
0/19
/07
31G
EN
ER
ATE
A C
LAS
S 2
ES
TIM
ATE
10 d
ays
Mon
10/
22/0
7Fr
i 11/
2/07
32R
EV
IEW
, FIN
ALI
SE
DR
AW
ING
S &
CLA
SS
2 E
STI
MA
TE
5 da
ysM
on 9
/15/
08Fr
i 9/1
9/08
33O
FFSI
TE S
UR
FAC
E IN
FRA
STR
UC
TUR
E 29
0 da
ysM
on 8
/13/
07Fr
i 9/1
9/08
34PR
ELIM
INA
RY
PHYS
ICA
L C
LOSU
RE
PLA
N (C
LASS
0)
35 d
ays
Mon
8/1
3/07
Fri 9
/28/
0735
GE
NE
RA
TE L
AY
OU
T D
RA
WIN
GS
10
day
sM
on 8
/13/
07Fr
i 8/2
4/07
36D
EV
IDE
TH
E D
RA
WIN
GS
INTO
AP
PR
OP
RIA
TE W
OR
KA
BLE
SH
EE
TS5
days
Mon
8/2
7/07
Fri 8
/31/
07
37G
EN
ER
ATE
/ U
PD
ATE
A S
PR
EA
DS
HE
ET
CO
NTA
ININ
G A
LL S
TRU
CTU
RE
S (I
TEM
ISE
EA
CH
STR
UC
TUR
10 d
ays
Mon
9/3
/07
Fri 9
/14/
07
38G
EN
ER
ATE
CLA
SS
0 E
STI
MA
TE10
day
sM
on 9
/17/
07Fr
i 9/2
8/07
39FI
NA
L PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)25
5 da
ysM
on 1
0/1/
07Fr
i 9/1
9/08
40R
EV
IEW
& U
PD
ATE
TH
E C
LOS
UR
E C
RIT
ER
IA
10 d
ays
Mon
10/
1/07
Fri 1
0/12
/07
41C
OM
PIL
E/U
PD
ATE
CLO
SU
RE
ES
TIM
ATE
SP
RE
AD
SH
EE
TS
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
42O
BTA
IN A
CC
UR
ATE
RA
TES
- LO
CA
L TE
ND
ER
RA
TES
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
43G
EN
ER
ATE
A C
LAS
S 2
ES
TIM
ATE
10 d
ays
Mon
10/
29/0
7Fr
i 11/
9/07
44R
EV
IEW
, FIN
ALI
SE
DR
AW
ING
S &
CLA
SS
2 E
STI
MA
TE
5 da
ysM
on 9
/15/
08Fr
i 9/1
9/08
45W
AST
E D
ISPO
SAL
FAC
ILIT
IES
295
days
Mon
8/6
/07
Fri 9
/19/
0846
PREL
IMIN
AR
Y PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 0
)35
day
sM
on 8
/6/0
7Fr
i 9/2
1/07
47G
EN
ER
ATE
LA
YO
UT
DR
AW
ING
S
10 d
ays
Mon
8/6
/07
Fri 8
/17/
07
48D
EV
IDE
TH
E D
RA
WIN
GS
INTO
AP
PR
OP
RIA
TE W
OR
KA
BLE
SH
EE
TS5
days
Mon
8/2
0/07
Fri 8
/24/
07
8/3 8/10
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
1st H
alf
Task
Spl
it
Pro
gres
s
Mile
ston
e
Sum
mar
y
Pro
ject
Sum
mar
y
Ext
erna
l Tas
ks
Ext
erna
l Mile
ston
e
Dea
dlin
e
MIN
E B
- G
AP
AN
ALY
SIS
C
LOS
UR
E P
RO
GR
AM
ME
Tue
9/25
/07
Pro
ject
: Pro
ject
Pro
gram
me
Dat
e: T
ue 9
/25/
07
41ANGLO AMERICAN MINE CLOSURE TOOLBOX
IDTa
sk N
ame
Dur
atio
nS
tart
Fini
sh
49G
EN
ER
ATE
/ U
PD
ATE
A S
PR
EA
DS
HE
ET
CO
NTA
ININ
G A
LL S
TRU
CTU
RE
S (I
TEM
ISE
EA
CH
STR
UC
TUR
10 d
ays
Mon
8/2
7/07
Fri 9
/7/0
7
50G
EN
ER
ATE
CLA
SS
0 E
STI
MA
TE10
day
sM
on 9
/10/
07Fr
i 9/2
1/07
51FI
NA
L PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)26
0 da
ysM
on 9
/24/
07Fr
i 9/1
9/08
52R
EV
IEW
& U
PD
ATE
TH
E C
LOS
UR
E C
RIT
ER
IA
10 d
ays
Mon
9/2
4/07
Fri 1
0/5/
07
53C
OM
PIL
E/U
PD
ATE
CLO
SU
RE
ES
TIM
ATE
SP
RE
AD
SH
EE
TS
10 d
ays
Mon
10/
8/07
Fri 1
0/19
/07
54O
BTA
IN A
CC
UR
ATE
RA
TES
- LO
CA
L TE
ND
ER
RA
TES
10 d
ays
Mon
10/
8/07
Fri 1
0/19
/07
55G
EN
ER
ATE
A C
LAS
S 2
ES
TIM
ATE
10 d
ays
Mon
10/
22/0
7Fr
i 11/
2/07
56R
EV
IEW
, FIN
ALI
SE
DR
AW
ING
S &
CLA
SS
2 E
STI
MA
TE
5 da
ysM
on 9
/15/
08Fr
i 9/1
9/08
57M
INE
TOW
NS
/ HO
USI
NG
/ SC
HO
OLS
, ETC
.29
0 da
ysM
on 8
/13/
07Fr
i 9/1
9/08
58PR
ELIM
INA
RY
PHYS
ICA
L C
LOSU
RE
PLA
N (C
LASS
0)
35 d
ays
Mon
8/1
3/07
Fri 9
/28/
0759
GE
NE
RA
TE L
AY
OU
T D
RA
WIN
GS
10 d
ays
Mon
8/1
3/07
Fri 8
/24/
07
60D
EV
IDE
TH
E D
RA
WIN
GS
INTO
AP
PR
OP
RIA
TE W
OR
KA
BLE
SH
EE
TS5
days
Mon
8/2
7/07
Fri 8
/31/
07
61G
EN
ER
ATE
/ U
PD
ATE
A S
PR
EA
DS
HE
ET
CO
NTA
ININ
G A
LL S
TRU
CTU
RE
S (I
TEM
ISE
EA
CH
STR
UC
TUR
10 d
ays
Mon
9/3
/07
Fri 9
/14/
07
62G
EN
ER
ATE
CLA
SS
0 E
STI
MA
TE10
day
sM
on 9
/17/
07Fr
i 9/2
8/07
63FI
NA
L PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)25
5 da
ysM
on 1
0/1/
07Fr
i 9/1
9/08
64R
EV
IEW
& U
PD
ATE
TH
E C
LOS
UR
E C
RIT
ER
IA
10 d
ays
Mon
10/
1/07
Fri 1
0/12
/07
65C
OM
PIL
E/U
PD
ATE
CLO
SU
RE
ES
TIM
ATE
SP
RE
AD
SH
EE
TS10
day
sM
on 1
0/15
/07
Fri 1
0/26
/07
66O
BTA
IN A
CC
UR
ATE
RA
TES
- LO
CA
L TE
ND
ER
RA
TES
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
67G
EN
ER
ATE
A C
LAS
S 2
ES
TIM
ATE
10 d
ays
Mon
10/
29/0
7Fr
i 11/
9/07
68R
EV
IEW
, FIN
ALI
SE
DR
AW
ING
S &
CLA
SS
2 E
STI
MA
TE (E
xter
nal a
udito
r)5
days
Mon
9/1
5/08
Fri 9
/19/
08
69M
ININ
G A
REA
CLO
SUR
E (M
inin
g m
anag
er)
290
days
Mon
8/1
3/07
Fri 9
/19/
0870
OPE
N C
AST
AR
EAS
290
days
Mon
8/1
3/07
Fri 9
/19/
0871
PREL
IMIN
AR
Y PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 0
)35
day
sM
on 8
/13/
07Fr
i 9/2
8/07
72G
EN
ER
ATE
LA
YO
UT
DR
AW
ING
S
10 d
ays
Mon
8/1
3/07
Fri 8
/24/
07
73D
EV
IDE
TH
E D
RA
WIN
GS
INTO
AP
PR
OP
RIA
TE W
OR
KA
BLE
SH
EE
TS5
days
Mon
8/2
7/07
Fri 8
/31/
07
74G
EN
ER
ATE
/ U
PD
ATE
A S
PR
EA
DS
HE
ET
CO
NTA
ININ
G A
LL S
TRU
CTU
RE
S (I
TEM
ISE
EA
CH
STR
UC
TUR
10 d
ays
Mon
9/3
/07
Fri 9
/14/
07
75G
EN
ER
ATE
CLA
SS
0 E
STI
MA
TE10
day
sM
on 9
/17/
07Fr
i 9/2
8/07
76FI
NA
L PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)25
5 da
ysM
on 1
0/1/
07Fr
i 9/1
9/08
77R
EV
IEW
& U
PD
ATE
TH
E C
LOS
UR
E C
RIT
ER
IA
10 d
ays
Mon
10/
1/07
Fri 1
0/12
/07
78C
OM
PIL
E/U
PD
ATE
CLO
SU
RE
ES
TIM
ATE
SP
RE
AD
SH
EE
TS
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
79O
BTA
IN A
CC
UR
ATE
RA
TES
- LO
CA
L TE
ND
ER
RA
TES
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
80G
EN
ER
ATE
A C
LAS
S 2
ES
TIM
ATE
10 d
ays
Mon
10/
29/0
7Fr
i 11/
9/07
81R
EV
IEW
, FIN
ALI
SE
DR
AW
ING
S &
CLA
SS
2 E
STI
MA
TE (E
xter
nal a
udito
r)5
days
Mon
9/1
5/08
Fri 9
/19/
08
82PH
YSIC
AL
CLO
SUR
E ES
TIM
ATE
- D
OC
UM
ENT
CO
MPI
LATI
ON
(Env
ironm
enta
l coo
rdin
ator
)31
0 da
ysM
on 8
/27/
07Fr
i 10/
31/0
883
PREL
IMIN
AR
Y PH
YSIC
AL
MIN
E C
LOSU
RE
PLA
N (C
LASS
0)
65.5
day
sM
on 8
/27/
07M
on 1
1/26
/07
84C
OM
PIL
E D
RA
FT P
HY
SIC
AL
CLO
SU
RE
RE
PO
RT
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
85P
RO
JEC
T TE
AM
RE
VIE
W &
WO
RK
SH
OP
10
day
sM
on 1
0/8/
07Fr
i 10/
19/0
7
86U
PD
ATE
DR
AFT
PH
YS
ICA
L C
LOS
UR
E R
EP
OR
T 10
day
sM
on 1
0/22
/07
Mon
11/
12/0
7
87M
AN
AG
EM
EN
T R
EV
IEW
CLO
SU
RE
RE
PO
RT
10 d
ays
Mon
11/
12/0
7M
on 1
1/26
/07
88FI
NA
L C
LAS
S 0
RE
PO
RT
0 da
ysM
on 1
1/26
/07
Mon
11/
26/0
7
89FI
NA
L PH
YSIC
AL
MIN
E C
LOSU
RE
PLA
N (C
LASS
2)
60 d
ays
Mon
8/1
1/08
Fri 1
0/31
/08
90C
OM
PIL
E D
RA
FT P
HY
SIC
AL
CLO
SU
RE
RE
PO
RT
30 d
ays
Mon
8/1
1/08
Fri 9
/19/
08
91P
RO
JEC
T TE
AM
RE
VIE
W &
WO
RK
SH
OP
10 d
ays
Mon
9/2
2/08
Fri 1
0/3/
08
92U
PD
ATE
DR
AFT
PH
YS
ICA
L C
LOS
UR
E R
EP
OR
T10
day
sM
on 1
0/6/
08Fr
i 10/
17/0
8
93M
AN
AG
EM
EN
T R
EV
IEW
CLO
SU
RE
RE
PO
RT
10 d
ays
Mon
10/
20/0
8Fr
i 10/
31/0
8
94FI
NA
L C
LAS
S 2
RE
PO
RT
0 da
ysFr
i 10/
31/0
8Fr
i 10/
31/0
8
95B
IO-P
HYS
ICA
L C
LOSU
RE
/ REH
AB
ILIT
ATI
ON
(Env
ironm
enta
l coo
rdin
ator
)36
0 da
ysM
on 6
/11/
07Fr
i 10/
24/0
896
BIO
DIV
ERSI
TY33
5 da
ysM
on 6
/11/
07Fr
i 9/1
9/08
11/2
6
10/3
1
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
1st H
alf
Task
Spl
it
Pro
gres
s
Mile
ston
e
Sum
mar
y
Pro
ject
Sum
mar
y
Ext
erna
l Tas
ks
Ext
erna
l Mile
ston
e
Dea
dlin
e
MIN
E B
- G
AP
AN
ALY
SIS
C
LOS
UR
E P
RO
GR
AM
ME
Tue
9/25
/07
Pro
ject
: Pro
ject
Pro
gram
me
Dat
e: T
ue 9
/25/
07
42 ANGLO AMERICAN MINE CLOSURE TOOLBOX
APPENDIX B: PROJECT PHASE 1 AND 2: PRELIMINARY & FINAL CLOSURE PLAN PROGRAMME CONTINUEDID
Task
Nam
eD
urat
ion
Sta
rtFi
nish
97PR
ELIM
INA
RY
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 0
)10
0 da
ysM
on 6
/11/
07Fr
i 10/
26/0
798
AP
PO
INT
CO
NS
ULT
AN
T A
ND
DO
EN
VIR
ON
ME
NTA
L R
ISK
RE
PO
RT
30 d
ays
Mon
6/1
1/07
Fri 7
/20/
07
99ID
EN
TIFY
EN
VIR
ON
ME
NTS
TH
AT
HA
S B
EE
N &
WIL
L B
E A
FFE
CTE
D5
days
Mon
7/2
3/07
Fri 7
/27/
07
100
CO
ND
UC
T S
CR
EE
NIN
G L
EV
EL
RIS
K A
SS
ES
SM
EN
T20
day
sM
on 7
/30/
07Fr
i 8/2
4/07
101
IDE
NTI
FY P
OTE
NTI
AL
GA
PS
AN
D D
O S
TUD
IES
IF R
EQ
UIR
ED
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
102
UP
DA
TE C
LOS
UR
E C
RIT
ER
IA
5 da
ysM
on 1
0/8/
07Fr
i 10/
12/0
7
103
GE
NE
RA
TE /
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
104
FIN
AL
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)23
5 da
ysM
on 1
0/29
/07
Fri 9
/19/
0810
5U
PD
ATE
D A
ND
IMP
LEM
EN
T A
PR
OV
EN
RE
HA
BIL
ITA
TIO
N P
LAN
30 d
ays
Mon
10/
29/0
7Fr
i 12/
7/07
106
DO
AD
DIT
ION
AL
TRA
ILS
AN
D S
TUD
YS
IF R
EQ
UIR
ED
120
days
Mon
12/
10/0
7Fr
i 5/2
3/08
107
PR
EP
AR
E F
INA
L R
EH
AB
ILIT
ATI
ON
PLA
N20
day
sM
on 5
/26/
08Fr
i 6/2
0/08
108
UP
DA
TE T
O A
CLA
SS
2 E
STI
MA
TE
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
109
PRO
TEC
TED
HA
BIT
ATS
33
5 da
ysM
on 6
/11/
07Fr
i 9/1
9/08
110
PREL
IMIN
AR
Y B
IO-P
HYS
ICA
L C
LOSU
RE
PLA
N (C
LASS
0)
100
days
Mon
6/1
1/07
Fri 1
0/26
/07
111
AP
PO
INT
CO
NS
ULT
AN
T A
ND
DO
EN
VIR
ON
ME
NTA
L R
ISK
RE
PO
RT
30 d
ays
Mon
6/1
1/07
Fri 7
/20/
07
112
IDE
NTI
FY E
NV
IRO
NM
EN
TS T
HA
T H
AS
BE
EN
& W
ILL
BE
AFF
EC
TED
5 da
ysM
on 7
/23/
07Fr
i 7/2
7/07
113
CO
ND
UC
T S
CR
EE
NIN
G L
EV
EL
RIS
K A
SS
ES
SM
EN
T20
day
sM
on 7
/30/
07Fr
i 8/2
4/07
114
IDE
NTI
FY P
OTE
NTI
AL
GA
PS
AN
D D
O S
TUD
IES
IF R
EQ
UIR
ED
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
115
UP
DA
TE C
LOS
UR
E C
RIT
ER
IA
5 da
ysM
on 1
0/8/
07Fr
i 10/
12/0
7
116
GE
NE
RA
TE /
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
117
FIN
AL
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)23
5 da
ysM
on 1
0/29
/07
Fri 9
/19/
0811
8U
PD
ATE
D A
ND
IMP
LEM
EN
T A
PR
OV
EN
RE
HA
BIL
ITA
TIO
N P
LAN
30 d
ays
Mon
10/
29/0
7Fr
i 12/
7/07
119
DO
AD
DIT
ION
AL
TRA
ILS
AN
D S
TUD
YS
IF R
EQ
UIR
ED
120
days
Mon
12/
10/0
7Fr
i 5/2
3/08
120
PR
EP
AR
E F
INA
L R
EH
AB
ILIT
ATI
ON
PLA
N20
day
sM
on 5
/26/
08Fr
i 6/2
0/08
121
UP
DA
TE T
O A
CLA
SS
2 E
STI
MA
TE
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
122
GR
OU
ND
WA
TER
335
days
Mon
6/1
1/07
Fri 9
/19/
0812
3PR
ELIM
INA
RY
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 0
)10
0 da
ysM
on 6
/11/
07Fr
i 10/
26/0
712
4A
PP
OIN
T C
ON
SU
LTA
NT
AN
D D
O E
NV
IRO
NM
EN
TAL
RIS
K R
EP
OR
T30
day
sM
on 6
/11/
07Fr
i 7/2
0/07
125
IDE
NTI
FY E
NV
IRO
NM
EN
TS T
HA
T H
AS
BE
EN
& W
ILL
BE
AFF
EC
TED
5 da
ysM
on 7
/23/
07Fr
i 7/2
7/07
126
CO
ND
UC
T S
CR
EE
NIN
G L
EV
EL
RIS
K A
SS
ES
SM
EN
T20
day
sM
on 7
/30/
07Fr
i 8/2
4/07
127
IDE
NTI
FY P
OTE
NTI
AL
GA
PS
AN
D D
O S
TUD
IES
IF R
EQ
UIR
ED
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
128
UP
DA
TE C
LOS
UR
E C
RIT
ER
IA
5 da
ysM
on 1
0/8/
07Fr
i 10/
12/0
7
129
GE
NE
RA
TE /
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
130
FIN
AL
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)23
5 da
ysM
on 1
0/29
/07
Fri 9
/19/
0813
1U
PD
ATE
D A
ND
IMP
LEM
EN
T A
PR
OV
EN
RE
HA
BIL
ITA
TIO
N P
LAN
30 d
ays
Mon
10/
29/0
7Fr
i 12/
7/07
132
DO
AD
DIT
ION
AL
TRA
ILS
AN
D S
TUD
YS
IF R
EQ
UIR
ED
120
days
Mon
12/
10/0
7Fr
i 5/2
3/08
133
PR
EP
AR
E F
INA
L R
EH
AB
ILIT
ATI
ON
PLA
N20
day
sM
on 5
/26/
08Fr
i 6/2
0/08
134
UP
DA
TE T
O A
CLA
SS
2 E
STI
MA
TE
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
135
SUR
FAC
E W
ATE
R33
5 da
ysM
on 6
/11/
07Fr
i 9/1
9/08
136
PREL
IMIN
AR
Y B
IO-P
HYS
ICA
L C
LOSU
RE
PLA
N (C
LASS
0)
100
days
Mon
6/1
1/07
Fri 1
0/26
/07
137
AP
PO
INT
CO
NS
ULT
AN
T A
ND
DO
EN
VIR
ON
ME
NTA
L R
ISK
RE
PO
RT
30 d
ays
Mon
6/1
1/07
Fri 7
/20/
07
138
IDE
NTI
FY E
NV
IRO
NM
EN
TS T
HA
T H
AS
BE
EN
& W
ILL
BE
AFF
EC
TED
5 da
ysM
on 7
/23/
07Fr
i 7/2
7/07
139
CO
ND
UC
T S
CR
EE
NIN
G L
EV
EL
RIS
K A
SS
ES
SM
EN
T20
day
sM
on 7
/30/
07Fr
i 8/2
4/07
140
IDE
NTI
FY P
OTE
NTI
AL
GA
PS
AN
D D
O S
TUD
IES
IF R
EQ
UIR
ED
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
141
UP
DA
TE C
LOS
UR
E C
RIT
ER
IA
5 da
ysM
on 1
0/8/
07Fr
i 10/
12/0
7
142
GE
NE
RA
TE /
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
143
FIN
AL
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)23
5 da
ysM
on 1
0/29
/07
Fri 9
/19/
0814
4U
PD
ATE
D A
ND
IMP
LEM
EN
T A
PR
OV
EN
RE
HA
BIL
ITA
TIO
N P
LAN
30 d
ays
Mon
10/
29/0
7Fr
i 12/
7/07
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
1st H
alf
Task
Spl
it
Pro
gres
s
Mile
ston
e
Sum
mar
y
Pro
ject
Sum
mar
y
Ext
erna
l Tas
ks
Ext
erna
l Mile
ston
e
Dea
dlin
e
MIN
E B
- G
AP
AN
ALY
SIS
C
LOS
UR
E P
RO
GR
AM
ME
Tue
9/25
/07
Pro
ject
: Pro
ject
Pro
gram
me
Dat
e: T
ue 9
/25/
07
43ANGLO AMERICAN MINE CLOSURE TOOLBOX
IDTa
sk N
ame
Dur
atio
nS
tart
Fini
sh
145
DO
AD
DIT
ION
AL
TRA
ILS
AN
D S
TUD
YS
IF R
EQ
UIR
ED
120
days
Mon
12/
10/0
7Fr
i 5/2
3/08
146
PR
EP
AR
E F
INA
L R
EH
AB
ILIT
ATI
ON
PLA
N20
day
sM
on 5
/26/
08Fr
i 6/2
0/08
147
UP
DA
TE T
O A
CLA
SS
2 E
STI
MA
TE
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
148
AIR
QU
ALI
TY
335
days
Mon
6/1
1/07
Fri 9
/19/
0814
9PR
ELIM
INA
RY
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 0
)10
0 da
ysM
on 6
/11/
07Fr
i 10/
26/0
715
0A
PP
OIN
T C
ON
SU
LTA
NT
AN
D D
O E
NV
IRO
NM
EN
TAL
RIS
K R
EP
OR
T30
day
sM
on 6
/11/
07Fr
i 7/2
0/07
151
IDE
NTI
FY E
NV
IRO
NM
EN
TS T
HA
T H
AS
BE
EN
& W
ILL
BE
AFF
EC
TED
5 da
ysM
on 7
/23/
07Fr
i 7/2
7/07
152
CO
ND
UC
T S
CR
EE
NIN
G L
EV
EL
RIS
K A
SS
ES
SM
EN
T20
day
sM
on 7
/30/
07Fr
i 8/2
4/07
153
IDE
NTI
FY P
OTE
NTI
AL
GA
PS
AN
D D
O S
TUD
IES
IF R
EQ
UIR
ED
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
154
UP
DA
TE C
LOS
UR
E C
RIT
ER
IA
5 da
ysM
on 1
0/8/
07Fr
i 10/
12/0
7
155
GE
NE
RA
TE /
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
156
FIN
AL
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)23
5 da
ysM
on 1
0/29
/07
Fri 9
/19/
0815
7U
PD
ATE
D A
ND
IMP
LEM
EN
T A
PR
OV
EN
RE
HA
BIL
ITA
TIO
N P
LAN
30 d
ays
Mon
10/
29/0
7Fr
i 12/
7/07
158
DO
AD
DIT
ION
AL
TRA
ILS
AN
D S
TUD
YS
IF R
EQ
UIR
ED
120
days
Mon
12/
10/0
7Fr
i 5/2
3/08
159
PR
EP
AR
E F
INA
L R
EH
AB
ILIT
ATI
ON
PLA
N20
day
sM
on 5
/26/
08Fr
i 6/2
0/08
160
UP
DA
TE T
O A
CLA
SS
2 E
STI
MA
TE
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
161
SOIL
, LA
ND
USE
& L
AN
D C
APA
BIL
ITY
335
days
Mon
6/1
1/07
Fri 9
/19/
0816
2PR
ELIM
INA
RY
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 0
)10
0 da
ysM
on 6
/11/
07Fr
i 10/
26/0
716
3A
PP
OIN
T C
ON
SU
LTA
NT
AN
D D
O E
NV
IRO
NM
EN
TAL
RIS
K R
EP
OR
T30
day
sM
on 6
/11/
07Fr
i 7/2
0/07
164
IDE
NTI
FY E
NV
IRO
NM
EN
TS T
HA
T H
AS
BE
EN
& W
ILL
BE
AFF
EC
TED
5 da
ysM
on 7
/23/
07Fr
i 7/2
7/07
165
CO
ND
UC
T S
CR
EE
NIN
G L
EV
EL
RIS
K A
SS
ES
SM
EN
T20
day
sM
on 7
/30/
07Fr
i 8/2
4/07
166
IDE
NTI
FY P
OTE
NTI
AL
GA
PS
AN
D D
O S
TUD
IES
IF R
EQ
UIR
ED
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
167
UP
DA
TE C
LOS
UR
E C
RIT
ER
IA
5 da
ysM
on 1
0/8/
07Fr
i 10/
12/0
7
168
GE
NE
RA
TE /
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
169
FIN
AL
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)23
5 da
ysM
on 1
0/29
/07
Fri 9
/19/
0817
0U
PD
ATE
D A
ND
IMP
LEM
EN
T A
PR
OV
EN
RE
HA
BIL
ITA
TIO
N P
LAN
30 d
ays
Mon
10/
29/0
7Fr
i 12/
7/07
171
DO
AD
DIT
ION
AL
TRA
ILS
AN
D S
TUD
YS
IF R
EQ
UIR
ED
120
days
Mon
12/
10/0
7Fr
i 5/2
3/08
172
PR
EP
AR
E F
INA
L R
EH
AB
ILIT
ATI
ON
PLA
N20
day
sM
on 5
/26/
08Fr
i 6/2
0/08
173
UP
DA
TE T
O A
CLA
SS
2 E
STI
MA
TE
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
174
NA
TUR
AL
RES
OU
RC
ES33
5 da
ysM
on 6
/11/
07Fr
i 9/1
9/08
175
PREL
IMIN
AR
Y B
IO-P
HYS
ICA
L C
LOSU
RE
PLA
N (C
LASS
0)
100
days
Mon
6/1
1/07
Fri 1
0/26
/07
176
AP
PO
INT
CO
NS
ULT
AN
T A
ND
DO
EN
VIR
ON
ME
NTA
L R
ISK
RE
PO
RT
30 d
ays
Mon
6/1
1/07
Fri 7
/20/
07
177
IDE
NTI
FY E
NV
IRO
NM
EN
TS T
HA
T H
AS
BE
EN
& W
ILL
BE
AFF
EC
TED
5 da
ysM
on 7
/23/
07Fr
i 7/2
7/07
178
CO
ND
UC
T S
CR
EE
NIN
G L
EV
EL
RIS
K A
SS
ES
SM
EN
T20
day
sM
on 7
/30/
07Fr
i 8/2
4/07
179
IDE
NTI
FY P
OTE
NTI
AL
GA
PS
AN
D D
O S
TUD
IES
IF R
EQ
UIR
ED
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
180
UP
DA
TE C
LOS
UR
E C
RIT
ER
IA
5 da
ysM
on 1
0/8/
07Fr
i 10/
12/0
7
181
GE
NE
RA
TE /
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
182
FIN
AL
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)23
5 da
ysM
on 1
0/29
/07
Fri 9
/19/
0818
3U
PD
ATE
D A
ND
IMP
LEM
EN
T A
PR
OV
EN
RE
HA
BIL
ITA
TIO
N P
LAN
30 d
ays
Mon
10/
29/0
7Fr
i 12/
7/07
184
DO
AD
DIT
ION
AL
TRA
ILS
AN
D S
TUD
YS
IF R
EQ
UIR
ED
120
days
Mon
12/
10/0
7Fr
i 5/2
3/08
185
PR
EP
AR
E F
INA
L R
EH
AB
ILIT
ATI
ON
PLA
N20
day
sM
on 5
/26/
08Fr
i 6/2
0/08
186
UP
DA
TE T
O A
CLA
SS
2 E
STI
MA
TE
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
187
TOPO
GR
APH
Y / V
ISU
AL
335
days
Mon
6/1
1/07
Fri 9
/19/
0818
8PR
ELIM
INA
RY
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 0
)10
0 da
ysM
on 6
/11/
07Fr
i 10/
26/0
718
9A
PP
OIN
T C
ON
SU
LTA
NT
AN
D D
O E
NV
IRO
NM
EN
TAL
RIS
K R
EP
OR
T30
day
sM
on 6
/11/
07Fr
i 7/2
0/07
190
IDE
NTI
FY E
NV
IRO
NM
EN
TS T
HA
T H
AS
BE
EN
& W
ILL
BE
AFF
EC
TED
5 da
ysM
on 7
/23/
07Fr
i 7/2
7/07
191
CO
ND
UC
T S
CR
EE
NIN
G L
EV
EL
RIS
K A
SS
ES
SM
EN
T20
day
sM
on 7
/30/
07Fr
i 8/2
4/07
192
IDE
NTI
FY P
OTE
NTI
AL
GA
PS
AN
D D
O S
TUD
IES
IF R
EQ
UIR
ED
30 d
ays
Mon
8/2
7/07
Fri 1
0/5/
07
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
1st H
alf
Task
Spl
it
Pro
gres
s
Mile
ston
e
Sum
mar
y
Pro
ject
Sum
mar
y
Ext
erna
l Tas
ks
Ext
erna
l Mile
ston
e
Dea
dlin
e
MIN
E B
- G
AP
AN
ALY
SIS
C
LOS
UR
E P
RO
GR
AM
ME
Tue
9/25
/07
Pro
ject
: Pro
ject
Pro
gram
me
Dat
e: T
ue 9
/25/
07
44 ANGLO AMERICAN MINE CLOSURE TOOLBOX
APPENDIX B: PROJECT PHASE 1 AND 2: PRELIMINARY & FINAL CLOSURE PLAN PROGRAMME CONTINUED
IDTa
sk N
ame
Dur
atio
nS
tart
Fini
sh
193
UP
DA
TE C
LOS
UR
E C
RIT
ER
IA
5 da
ysM
on 1
0/8/
07Fr
i 10/
12/0
7
194
GE
NE
RA
TE /
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
195
FIN
AL
BIO
-PH
YSIC
AL
CLO
SUR
E PL
AN
(CLA
SS 2
)23
5 da
ysM
on 1
0/29
/07
Fri 9
/19/
0819
6U
PD
ATE
D A
ND
IMP
LEM
EN
T A
PR
OV
EN
RE
HA
BIL
ITA
TIO
N P
LAN
30 d
ays
Mon
10/
29/0
7Fr
i 12/
7/07
197
DO
AD
DIT
ION
AL
TRA
ILS
AN
D S
TUD
YS
IF R
EQ
UIR
ED
120
days
Mon
12/
10/0
7Fr
i 5/2
3/08
198
PR
EP
AR
E F
INA
L R
EH
AB
ILIT
ATI
ON
PLA
N20
day
sM
on 5
/26/
08Fr
i 6/2
0/08
199
UP
DA
TE T
O A
CLA
SS
2 E
STI
MA
TE
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
200
UPD
ATE
CU
RR
ENT
REH
AB
EST
IMA
TE T
O A
CLA
SS 0
EST
IMA
TE (E
nviro
nmen
tal c
oord
inat
or)
270
days
Mon
10/
15/0
7Fr
i 10/
24/0
820
1PR
ELIM
INA
RY
BIO
-PH
YSIC
AL
MIN
E C
LOSU
RE
PLA
N (C
LASS
0)
35 d
ays
Mon
10/
15/0
7Fr
i 11/
30/0
720
2R
EV
IEW
CLO
SU
RE
/ R
EH
AB
ILIT
ATI
ON
CR
ITE
RIA
10 d
ays
Mon
10/
15/0
7Fr
i 10/
26/0
7
203
UP
DA
TE U
PD
ATE
DR
AW
ING
S R
EFL
EC
TIN
G T
OTA
L E
XS
TEN
D O
F D
ISTU
RB
AC
E
5 da
ysM
on 1
0/29
/07
Fri 1
1/2/
07
204
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
FO
R R
EH
AB
ILIT
ATI
ON
5 da
ysM
on 1
1/5/
07Fr
i 11/
9/07
205
RE
VIE
W O
F R
EP
OR
T 10
day
sM
on 1
1/12
/07
Fri 1
1/23
/07
206
UP
DA
TE R
EP
OR
T 5
days
Mon
11/
26/0
7Fr
i 11/
30/0
7
207
FIN
AL
CLA
SS
0 R
EP
OR
T0
days
Fri 1
1/30
/07
Fri 1
1/30
/07
208
FIN
AL
BIO
-PH
YSIC
AL
MIN
E C
LOSU
RE
PLA
N (C
LASS
2)
35 d
ays
Mon
9/8
/08
Fri 1
0/24
/08
209
RE
VIE
W C
LOS
UR
E /
RE
HA
BIL
ITA
TIO
N C
RIT
ER
IA
10 d
ays
Mon
9/8
/08
Fri 9
/19/
08
210
UP
DA
TE U
PD
ATE
DR
AW
ING
S R
EFL
EC
TIN
G T
OTA
L E
XS
TEN
D O
F D
ISTU
RB
AC
E5
days
Mon
9/2
2/08
Fri 9
/26/
08
211
UP
DA
TE C
LAS
S 0
ES
TIM
ATE
FO
R R
EH
AB
ILIT
ATI
ON
5 da
ysM
on 9
/29/
08Fr
i 10/
3/08
212
RE
VIE
W O
F R
EP
OR
T10
day
sM
on 1
0/6/
08Fr
i 10/
17/0
8
213
UP
DA
TE R
EP
OR
T 5
days
Mon
10/
20/0
8Fr
i 10/
24/0
8
214
FIN
AL
CLA
SS
2 R
EP
OR
T0
days
Fri 1
0/24
/08
Fri 1
0/24
/08
215
I&A
P C
ON
SULT
ATI
ON
& S
OC
IAL
CLO
SUR
E (S
ocia
l man
ager
)33
5 da
ysM
on 6
/11/
07Fr
i 9/1
9/08
216
EMPL
OYE
ES25
5 da
ysM
on 8
/13/
07Fr
i 8/1
/08
217
PREL
IMIN
AR
Y SO
CIA
L C
LOSU
RE
PLA
N (C
LASS
0)
50 d
ays
Mon
8/1
3/07
Fri 1
0/19
/07
218
GE
NE
RA
TE A
ND
UP
DA
TE T
HE
CU
RR
EN
T E
MP
LOY
ME
NT
PR
OFI
LE20
day
sM
on 8
/13/
07Fr
i 9/7
/07
219
GE
NE
RA
TE, R
EV
IEW
AN
D U
PD
ATE
TH
E S
OC
IAL
CLO
SU
RE
CR
ITE
RIA
10 d
ays
Mon
9/1
0/07
Fri 9
/21/
07
220
GE
NE
RA
TE A
CLA
SS
0 S
OC
IAL
CLO
SU
RE
ES
TIM
ATE
20
day
sM
on 9
/24/
07Fr
i 10/
19/0
7
221
FIN
AL
SOC
IAL
CLO
SUR
E PL
AN
(CLA
SS 2
)20
5 da
ysM
on 1
0/22
/07
Fri 8
/1/0
822
2R
EV
IEW
AN
D U
PD
ATE
TH
E S
OC
IAL
CLO
SU
RE
CR
ITE
RIA
20 d
ays
Mon
10/
22/0
7Fr
i 11/
16/0
7
223
GE
NE
RA
TE A
N E
MP
LOY
EE
EN
GA
GE
ME
NT
PLA
N20
day
sM
on 1
1/19
/07
Fri 1
2/14
/07
224
GE
T A
GR
EE
ME
NT
FRO
M E
MP
LOY
EE
S (U
NIO
NS
) ON
TH
E C
RIT
ER
IA
140
days
Mon
12/
17/0
7Fr
i 6/2
7/08
225
UD
ATE
TH
E S
OC
IAL
CLO
SU
RE
ES
TIM
ATE
TO
A C
LAS
S 2
ES
TIM
ATE
20 d
ays
Mon
6/3
0/08
Fri 7
/25/
08
226
UP
DA
TE T
HE
OP
ER
ATI
NG
CO
STS
WH
ER
E R
EQ
UIR
ED
5 da
ysM
on 7
/28/
08Fr
i 8/1
/08
227
I&A
Ps &
GO
VER
MEN
T33
5 da
ysM
on 6
/11/
07Fr
i 9/1
9/08
228
CO
NSU
LTA
TIO
N W
ITH
I&A
PS &
GO
VER
NM
ENT
(Soc
ial m
anag
er)
70 d
ays
Mon
8/1
3/07
Fri 1
1/16
/07
229
DE
VE
LOP
, RE
VIE
W T
HE
CO
MM
UN
ITY
PR
OFI
LE
20 d
ays
Mon
8/1
3/07
Fri 9
/7/0
7
230
RE
VIE
W A
ND
UP
DA
TE I&
AP
DA
TAB
AS
E
10 d
ays
Mon
9/1
0/07
Fri 9
/21/
07
231
DR
AW
UP
, RE
VIE
W T
HE
CO
MM
UN
ITY
EN
GA
GE
ME
NT
PLA
N (C
EP
) 20
day
sM
on 9
/24/
07Fr
i 10/
19/0
7
232
RE
VIE
W C
EP
10
day
sM
on 1
0/22
/07
Fri 1
1/2/
07
233
UP
DA
TE C
EP
5 da
ysM
on 1
1/5/
07Fr
i 11/
9/07
234
FIN
ALI
SE
I&A
P D
ATA
BA
SE
5 da
ysM
on 1
1/12
/07
Fri 1
1/16
/07
235
SIG
N-O
FF C
EP
0
days
Fri 1
1/16
/07
Fri 1
1/16
/07
236
CO
MPI
LE A
STA
TE O
F TH
E EN
VIR
ON
MEN
T R
EPO
RT
(Soc
ial m
anag
er)
65 d
ays
Mon
6/1
1/07
Fri 9
/7/0
723
7A
PP
OIN
T C
ON
SU
LTA
NT
FOR
SO
ER
30
day
sM
on 6
/11/
07Fr
i 7/2
0/07
238
CO
MP
ILE
SO
ER
(con
sulta
nt)
20 d
ays
Mon
7/2
3/07
Fri 8
/17/
07
239
RE
VIE
W S
OE
R
10 d
ays
Mon
8/2
0/07
Fri 8
/31/
07
240
UP
DA
TE S
OE
R
5 da
ysM
on 9
/3/0
7Fr
i 9/7
/07
11/3
0
10/2
4
11/1
6
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
1st H
alf
Task
Spl
it
Pro
gres
s
Mile
ston
e
Sum
mar
y
Pro
ject
Sum
mar
y
Ext
erna
l Tas
ks
Ext
erna
l Mile
ston
e
Dea
dlin
e
MIN
E B
- G
AP
AN
ALY
SIS
C
LOS
UR
E P
RO
GR
AM
ME
Tue
9/25
/07
Pro
ject
: Pro
ject
Pro
gram
me
Dat
e: T
ue 9
/25/
07
45ANGLO AMERICAN MINE CLOSURE TOOLBOX
IDTa
sk N
ame
Dur
atio
nS
tart
Fini
sh
241
DIS
TRIB
UTE
SO
ER
0
days
Fri 9
/7/0
7Fr
i 9/7
/07
242
CO
ND
UC
T A
RA
PID
STR
ATE
GIC
EN
VIR
ON
EMN
TAL
ASS
ESSM
ENT
(Soc
ial m
anag
er)
50 d
ays
Fri 9
/21/
07Fr
i 11/
30/0
724
3C
ON
DU
CT
SE
A W
OR
KS
HO
P
0 da
ysFr
i 9/2
1/07
Fri 9
/21/
07
244
CO
MP
ILE
DR
AFT
CO
MP
ILE
SE
A (C
onsu
ltant
)25
day
sM
on 9
/24/
07Fr
i 10/
26/0
7
245
RE
VIE
W D
RA
FT R
AP
ID S
EA
- N
O C
ON
SU
LTA
TIO
N5
days
Mon
10/
29/0
7Fr
i 11/
2/07
246
UP
DA
TED
RA
PID
SE
A
5 da
ysM
on 1
1/5/
07Fr
i 11/
9/07
247
GE
T A
PP
RO
VA
L FO
R C
LOS
UR
E /
SD
VIS
ION
& C
EP
10 d
ays
Mon
11/
12/0
7Fr
i 11/
23/0
7
248
FIN
AL
SE
A
0 da
ysFr
i 11/
23/0
7Fr
i 11/
23/0
7
249
GE
NE
RA
TE, U
PD
ATE
SO
CIA
L C
LOS
UR
E C
OS
T TO
CLA
SS
05
days
Mon
11/
26/0
7Fr
i 11/
30/0
7
250
SEA
T PR
OC
ESS
(SD
man
ager
)33
5 da
ysM
on 6
/11/
07Fr
i 9/1
9/08
251
PR
OJE
CT
TEA
M F
OR
SE
AT
5 da
ysM
on 6
/11/
07Fr
i 6/1
5/07
252
CO
MP
ILE
SE
AT
60 d
ays
Mon
6/1
8/07
Fri 9
/7/0
7
253
RE
VIE
W S
EA
T10
day
sM
on 9
/10/
07Fr
i 9/2
1/07
254
UP
DA
TE S
EA
T5
days
Mon
9/2
4/07
Fri 9
/28/
07
255
DIS
TRIB
UTE
SE
AT
0 da
ysFr
i 9/2
8/07
Fri 9
/28/
07
256
EA
RLI
ES
T S
TAR
T C
ON
SU
LTA
TIO
N P
RO
CE
SS
0 da
ysFr
i 1/1
1/08
Fri 1
/11/
08
257
IMP
LEM
EN
T C
EP
AN
D O
BTA
IN C
ON
FIR
ME
D N
EE
DS
90
day
sM
on 1
/14/
08Fr
i 5/1
6/08
258
IMP
LEM
EN
T C
EP
AN
D O
BTA
IN P
RO
VE
N N
EE
DS
60
day
sM
on 5
/19/
08Fr
i 8/8
/08
259
IMP
LEM
EN
T C
EP
AN
D O
BTA
IN A
GR
EE
D S
OC
IAL
CLO
SU
RE
CR
ITE
RIA
30
day
sM
on 8
/11/
08Fr
i 9/1
9/08
260
OVE
RA
LL C
LOSU
RE
REP
OR
T C
OM
PILA
TIO
N (C
losu
re m
anag
er)
285
days
Mon
12/
3/07
Fri 1
/2/0
926
1O
VER
ALL
CO
ST E
STIM
ATE
28
5 da
ysM
on 1
2/3/
07Fr
i 1/2
/09
262
OVE
RA
LL P
REL
IMIN
AR
Y M
INE
CLO
SUR
E PL
AN
(CLA
SS 0
)30
day
sM
on 1
2/3/
07Fr
i 1/1
1/08
263
CO
MP
ILE
OV
ER
ALL
PR
ELI
MIN
AR
Y C
LOS
UR
E R
EP
OR
T (C
onsu
ltant
)15
day
sM
on 1
2/3/
07Fr
i 12/
21/0
7
264
CO
MP
ILE
CLO
SU
RE
PR
OG
RA
MM
E &
CA
SH
FLO
W (C
onsu
ltant
/ pr
ojec
t tea
m)
5 da
ysM
on 1
2/17
/07
Fri 1
2/21
/07
265
RE
VIE
W O
VE
RA
LL P
RE
LIM
INA
RY
CLO
SU
RE
RE
PO
RT
(Pro
ject
team
)10
day
sM
on 1
2/24
/07
Fri 1
/4/0
8
266
UP
DA
TE P
RE
LIM
INA
RY
CLO
SU
RE
RE
PO
RT
(Con
sulta
nt)
5 da
ysM
on 1
/7/0
8Fr
i 1/1
1/08
267
FIN
AL
PR
ELI
MIN
AR
Y (C
LAS
S 0
) RE
PO
RT
SIG
N-O
FF
0 da
ysFr
i 1/1
1/08
Fri 1
/11/
08
268
OVE
RA
LL F
INA
L C
LOSU
RE
PLA
N (C
LASS
2 T
O C
LASS
3)
45 d
ays
Mon
11/
3/08
Fri 1
/2/0
926
9U
DA
TE P
RE
LIM
INA
RY
CLO
SU
RE
RE
PO
RT
(CLA
SS
0) T
O A
FIN
AL
CLO
SU
RE
RE
PO
RT
(CLA
SS
2)
25 d
ays
Mon
11/
3/08
Fri 1
2/5/
08
270
FIN
AL
CLO
SU
RE
RE
PO
RT
(CLA
SS
2)
0 da
ysFr
i 12/
5/08
Fri 1
2/5/
08
271
UP
DA
TE F
INA
L C
LOS
UR
E R
EP
OR
T TO
A C
LAS
S 3
ES
TIM
ATE
20 d
ays
Mon
12/
8/08
Fri 1
/2/0
9
272
FIN
AL
CLO
SU
RE
RE
PO
RT
(CLA
SS
3)
0 da
ysFr
i 1/2
/09
Fri 1
/2/0
9
9/7 9/
21
11/2
3
9/28
1/11
1/11
12/5
1/2
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
1st H
alf
Task
Spl
it
Pro
gres
s
Mile
ston
e
Sum
mar
y
Pro
ject
Sum
mar
y
Ext
erna
l Tas
ks
Ext
erna
l Mile
ston
e
Dea
dlin
e
MIN
E B
- G
AP
AN
ALY
SIS
C
LOS
UR
E P
RO
GR
AM
ME
Tue
9/25
/07
Pro
ject
: Pro
ject
Pro
gram
me
Dat
e: T
ue 9
/25/
07
46 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE 3: COMPLETED RISK ASSESSMENT
47ANGLO AMERICAN MINE CLOSURE TOOLBOX
INTRODUCTIONThis example does not relate to the previous examples in this document. The purpose of this example is to illustrate and highlight the risk/opportunity based approach of the Mine Closure Toolbox.
The following key actions must form part of developing the risk based closure criteria:
• Identify what is the key risk/opportunity that needs to be addressed e.g. re-vegetation of the waste rock dump to reduce the impact on air quality (dust), or to improve the visual impact (facilitate future post-closure land use - eco-tourism), or for stability of the side slopes (reduce erosion)
• Once the key risk/opportunity that needs to be addressed has been agreed upon, identify the most appropriate closure criteria
• Evaluate the acceptability of a reduced risk vs. the associated cost of the implementation of the closure criteria/mitigation
• Assess the effectiveness of the selected closure criteria
The business case for the inclusion of each and every closure criteria/activity should be demonstrated. (If you are not reducing an unacceptable risk to an acceptable level, or optimising an opportunity, you are most probably wasting valuable resources such as time and money).
This example shows the change in the risk profile, in terms of pre- and post-closure mitigation.
48 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT
RISK ISSUES FOR SURFACE INFRASTRUCTURE AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
1 Loss in Land capability due to:
i
Spillage of hydrocarbons and subsequent soil contamination at the following facilities: processing plant, workshops, salvage yard, compressor houses and oil & fuel handling facilities.
N/A 3 3 13 (S) 3 2 8 (M) 3 3 13 (S) 3 2 8 (M)
The primary risks identified are the contamination and pollution of soils, surface and groundwater due to spillages by hydrocarbons and the secondary surface water pollution of the local river as well as reducing land capability and thereby compromising the planned final land use. - The effective stockpiling and use of topsoil during rehabilitation
to reduce the loss of soil resources - Identification and dedicated soil clean-up combined with in situ
bio-remediation as appropriate - Effective rehabilitation of the earth dam, down gradient of the
CRD and FRD, as well as proper storm water management measures and rehabilitation of the CRD and FRD will reduce/limit the contamination arising from this source (refer to closure criteria at CRD and FRDs). Current assumption is that no additional remediation will be required in the existing water courses (salts).
- Waste management measures during LoM and at closure should be implemented for:
i. hazardous waste - medical waste, tar, ash from incinerators, spillages at sewage plant; and
ii. demolition waste - must be disposed off at authorised disposal site
- All radio-active material and instrumentation containing such material should be disposed at off-site licensed facilities. Effective and firm on-site waste management practices must be implemented.
- Through the demolishing of all infrastructure for purposes of this strategic preliminary closure plan, the situation is limit for a state of disrepair to set in is and it enhances an aesthetically acceptable site which is left behind.
- Earth dams will be rehabilitated as specified in the rehabilitation and closure criteria, and the contamination of the bases of dams will be considered.
Additional assessments:- Dedicated post closure performance water quality and soils
monitoring to confirm that the instituted mitigation measures were successful, i.e. meeting the performance requirements.
- Conduct site-wide radiological scan to confirm that no residual radioactive material and/or instrumentation remained that could compromise the planned final land use.
- Confirm if all the correct waste management procedures are in place.
- The airstrip must be rehabilitated if not transferred to third party.
- Determine the impact of hydrocarbon spillages on surface and groundwater, including the pollution of the local river by conducting surface and groundwater studies
Justification for removal of surface infrastructure:- all infrastructure will be demolished and either recycled or
disposed of at closure unless there is a beneficial use from a 3rd party in line with the final land use;
- preventing it from falling in a state of disrepair with aesthetical and safety implications;
- legal requirements; and- compromising the planned final land use due to possible
aesthetic impacts.
N/A 2 2 5 (L) 2 1 2 (L) 2 1 2 (L) 2 2 5 (L)
iiSalinity (salts) resultant of processing plant operations and on the haul roads because of dust suppression techniques.
N/A 3 3 13 (S) 3 1 4 (L) 3 2 8 (M) N/A N/A 3 3 13 (S) 3 1 4 (L) 3 2 8 (M) N/A
2Adverse surface and groundwater quality effects due to:
iSpillage of hydrocarbons at the following facilities: processing plant, workshops, salvage yard, compressor houses and oil & fuel handling facilities.
4 3 17 (S) 4 3 17 (S) 3 3 13 (S) 4 3 17 (S) 4 3 17 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S)
ii Spillages and pipeline leaks at the sewage plant. 4 3 17 (S) 2 3 9 (M) 2 1 2 (L) 2 3 9 (M) 2 2 5 (L) 2 3 9 (M) 2 3 9 (M) 1 1 1 (L) 2 3 9 (M) 1 1 1 (L)
iii
Secondary surface water pollution of the local river affecting downstream use, due to seepage / leakage/ spillage of dirty surface water from the earth dam down gradient of the Coarse Residue Deposit (CRD) and Fine Residue Deposit (FRD).
5 3 20 (S) 5 3 20 (S) 5 2 16 (S) 5 3 20 (S) 5 3 20 (S) 2 3 9 (M) 2 3 9 (M) 3 1 4 (L) 2 3 9 (M) 2 3 9 (M)
3 Safety and health threat and human exposure due to:
iInadequate disposal of radio-active waste at the processing plant, resulting in exposure.
2 4 14 (S) 1 4 10 (M) 1 2 3 (L) 1 4 10 (M) 1 4 10 (M) 1 4 10 (M) 1 2 3 (L) 1 1 1 (L) 1 2 3 )L) 1 1 1 (L)
iiInadequate storage and removal of explosives after closure from the explosives magazine resulting in a safety threat.
1 5 15 (S) 1 2 3 (L) 2 3 9 (M) 2 3 9 (M) 2 4 14 (S) 1 4 10 (M) 1 2 3 (L) 2 3 9 (M) 2 2 5 (L) 1 3 6 (M)
iiiInadequate disposal of hazardous waste (tar from roads) resulting in potential illness.
1 2 3 (L) 3 3 13 (S) 3 1 4 (L) 3 3 13 (S) 2 3 9 (M) 1 2 3 (L) 1 3 6 (M) 2 1 2 (L) 1 3 6 (M) 1 3 6 (M)
49ANGLO AMERICAN MINE CLOSURE TOOLBOX
RISK ISSUES FOR SURFACE INFRASTRUCTURE AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
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Pro
babi
lity
Con
sequ
ence
Ran
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Pro
babi
lity
Con
sequ
ence
Ran
king
1 Loss in Land capability due to:
i
Spillage of hydrocarbons and subsequent soil contamination at the following facilities: processing plant, workshops, salvage yard, compressor houses and oil & fuel handling facilities.
N/A 3 3 13 (S) 3 2 8 (M) 3 3 13 (S) 3 2 8 (M)
The primary risks identified are the contamination and pollution of soils, surface and groundwater due to spillages by hydrocarbons and the secondary surface water pollution of the local river as well as reducing land capability and thereby compromising the planned final land use. - The effective stockpiling and use of topsoil during rehabilitation
to reduce the loss of soil resources - Identification and dedicated soil clean-up combined with in situ
bio-remediation as appropriate - Effective rehabilitation of the earth dam, down gradient of the
CRD and FRD, as well as proper storm water management measures and rehabilitation of the CRD and FRD will reduce/limit the contamination arising from this source (refer to closure criteria at CRD and FRDs). Current assumption is that no additional remediation will be required in the existing water courses (salts).
- Waste management measures during LoM and at closure should be implemented for:
i. hazardous waste - medical waste, tar, ash from incinerators, spillages at sewage plant; and
ii. demolition waste - must be disposed off at authorised disposal site
- All radio-active material and instrumentation containing such material should be disposed at off-site licensed facilities. Effective and firm on-site waste management practices must be implemented.
- Through the demolishing of all infrastructure for purposes of this strategic preliminary closure plan, the situation is limit for a state of disrepair to set in is and it enhances an aesthetically acceptable site which is left behind.
- Earth dams will be rehabilitated as specified in the rehabilitation and closure criteria, and the contamination of the bases of dams will be considered.
Additional assessments:- Dedicated post closure performance water quality and soils
monitoring to confirm that the instituted mitigation measures were successful, i.e. meeting the performance requirements.
- Conduct site-wide radiological scan to confirm that no residual radioactive material and/or instrumentation remained that could compromise the planned final land use.
- Confirm if all the correct waste management procedures are in place.
- The airstrip must be rehabilitated if not transferred to third party.
- Determine the impact of hydrocarbon spillages on surface and groundwater, including the pollution of the local river by conducting surface and groundwater studies
Justification for removal of surface infrastructure:- all infrastructure will be demolished and either recycled or
disposed of at closure unless there is a beneficial use from a 3rd party in line with the final land use;
- preventing it from falling in a state of disrepair with aesthetical and safety implications;
- legal requirements; and- compromising the planned final land use due to possible
aesthetic impacts.
N/A 2 2 5 (L) 2 1 2 (L) 2 1 2 (L) 2 2 5 (L)
iiSalinity (salts) resultant of processing plant operations and on the haul roads because of dust suppression techniques.
N/A 3 3 13 (S) 3 1 4 (L) 3 2 8 (M) N/A N/A 3 3 13 (S) 3 1 4 (L) 3 2 8 (M) N/A
2Adverse surface and groundwater quality effects due to:
iSpillage of hydrocarbons at the following facilities: processing plant, workshops, salvage yard, compressor houses and oil & fuel handling facilities.
4 3 17 (S) 4 3 17 (S) 3 3 13 (S) 4 3 17 (S) 4 3 17 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S)
ii Spillages and pipeline leaks at the sewage plant. 4 3 17 (S) 2 3 9 (M) 2 1 2 (L) 2 3 9 (M) 2 2 5 (L) 2 3 9 (M) 2 3 9 (M) 1 1 1 (L) 2 3 9 (M) 1 1 1 (L)
iii
Secondary surface water pollution of the local river affecting downstream use, due to seepage / leakage/ spillage of dirty surface water from the earth dam down gradient of the Coarse Residue Deposit (CRD) and Fine Residue Deposit (FRD).
5 3 20 (S) 5 3 20 (S) 5 2 16 (S) 5 3 20 (S) 5 3 20 (S) 2 3 9 (M) 2 3 9 (M) 3 1 4 (L) 2 3 9 (M) 2 3 9 (M)
3 Safety and health threat and human exposure due to:
iInadequate disposal of radio-active waste at the processing plant, resulting in exposure.
2 4 14 (S) 1 4 10 (M) 1 2 3 (L) 1 4 10 (M) 1 4 10 (M) 1 4 10 (M) 1 2 3 (L) 1 1 1 (L) 1 2 3 )L) 1 1 1 (L)
iiInadequate storage and removal of explosives after closure from the explosives magazine resulting in a safety threat.
1 5 15 (S) 1 2 3 (L) 2 3 9 (M) 2 3 9 (M) 2 4 14 (S) 1 4 10 (M) 1 2 3 (L) 2 3 9 (M) 2 2 5 (L) 1 3 6 (M)
iiiInadequate disposal of hazardous waste (tar from roads) resulting in potential illness.
1 2 3 (L) 3 3 13 (S) 3 1 4 (L) 3 3 13 (S) 2 3 9 (M) 1 2 3 (L) 1 3 6 (M) 2 1 2 (L) 1 3 6 (M) 1 3 6 (M)
50 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
RISK ISSUES FOR WASTE MANAGEMENT SITES AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
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Ran
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Pro
babi
lity
Con
sequ
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Ran
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Pro
babi
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Con
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ence
Ran
king
1Financial risk associated with the possibility of not obtaining permission to dispose building rubble on-site (exemption from regulator).
N/A N/A 3 2 8 (M) 3 3 13 (S) N/A
The primary risk relates to not obtaining regulatory exemption for on-site disposal of building rubble resulting in financial risks associated with additional transport, expansion of off-site facilities (local municipal site). There is a potential risk of soil, surface and groundwater pollution due to leachate generation from the existing, partially closed unrehabilitated landfill site.
- Demolition waste must be disposed off at an authorised disposal site. This strategic preliminary closure plan does not include the allowance for off-site removal of demolition waste. The assumption is that the Department of Water Affairs (DWA) will give an exemption for building rubble to be disposed of on-site (a permit is necessary).
- All domestic and hazardous waste will be disposed of off-site at licensed facilities by licensed contractors.
- Proactive/early identification of building rubble disposal requirements is important as well as the commencement of the regulatory process for on-site disposal.
- The existing landfill site must be rehabilitated according to regulatory requirements and apply for a closure certificate (operational cost).
Additional assessments:- Liaise with authorities, particularly DWA, regarding the disposal
of demolition waste/building rubble.- Investigate available regional domestic landfill sites and future
capacity at end of LoM and invest appropriately during life of operation to ensure sufficient disposal capacity (corporate social investment initiative - operational cost - being undertaken as an operational cost).
- Early identification of surface infrastructure with beneficial reuse and the remaining infrastructure to be demolished and hence the volume and nature of material to be disposed of on-site.
N/A N/A 2 1 2 (L) 2 3 9 (M) N/A
2Lack of adequate landfill space at municipal landfill site for disposal of domestic waste requiring the mine to increase and/or improve the landfill site resulting in financial risk.
N/A N/A 3 1 4 (L) 3 3 13 (S) N/A N/A N/A 3 1 4 (L) 2 3 9 (M) N/A
3Risk of groundwater contamination due to leachate generation from existing landfill site.
2 3 9 (M) 2 3 9 (M) 4 1 3 (M) 5 3 20 (S) 2 3 9 (M) 2 3 9 (M) 2 3 3 (M) 4 1 4 (L) 3 1 4 (L) 1 3 6 9M)
4Risk of surface water contamination due to dirty water runoff from unrehabilitated landfill site.
2 3 9 (M) 2 3 9 (M) 4 1 3 (M) 5 3 20 (S) 2 3 9 (M) 2 3 9 (M) 2 3 9 (M) 2 1 2 (L) 3 1 4 (L) 1 3 6 (M)
5Risk of contamination of soils due to fugitive contamination and contaminated runoff.
2 2 5 (L) 2 2 5 (L) 4 1 3 (M) 5 3 20 (S) 2 3 9 (M) 2 2 5 (L) 2 2 5 (L) 2 1 2 (L) 3 1 4 (L) 1 3 6 (M)
6Not obtaining a closure certificate for existing landfill site, impacting on overall closure for the mine.
N/A N/A 4 2 12 (M) 5 3 20 (S) 2 3 9 (M) N/A N/A 2 2 5 (L) 2 1 2 (L) 1 3 6 (M)
51ANGLO AMERICAN MINE CLOSURE TOOLBOX
RISK ISSUES FOR WASTE MANAGEMENT SITES AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
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Ran
king
Pro
babi
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Con
sequ
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Ran
king
Pro
babi
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Con
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Ran
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1Financial risk associated with the possibility of not obtaining permission to dispose building rubble on-site (exemption from regulator).
N/A N/A 3 2 8 (M) 3 3 13 (S) N/A
The primary risk relates to not obtaining regulatory exemption for on-site disposal of building rubble resulting in financial risks associated with additional transport, expansion of off-site facilities (local municipal site). There is a potential risk of soil, surface and groundwater pollution due to leachate generation from the existing, partially closed unrehabilitated landfill site.
- Demolition waste must be disposed off at an authorised disposal site. This strategic preliminary closure plan does not include the allowance for off-site removal of demolition waste. The assumption is that the Department of Water Affairs (DWA) will give an exemption for building rubble to be disposed of on-site (a permit is necessary).
- All domestic and hazardous waste will be disposed of off-site at licensed facilities by licensed contractors.
- Proactive/early identification of building rubble disposal requirements is important as well as the commencement of the regulatory process for on-site disposal.
- The existing landfill site must be rehabilitated according to regulatory requirements and apply for a closure certificate (operational cost).
Additional assessments:- Liaise with authorities, particularly DWA, regarding the disposal
of demolition waste/building rubble.- Investigate available regional domestic landfill sites and future
capacity at end of LoM and invest appropriately during life of operation to ensure sufficient disposal capacity (corporate social investment initiative - operational cost - being undertaken as an operational cost).
- Early identification of surface infrastructure with beneficial reuse and the remaining infrastructure to be demolished and hence the volume and nature of material to be disposed of on-site.
N/A N/A 2 1 2 (L) 2 3 9 (M) N/A
2Lack of adequate landfill space at municipal landfill site for disposal of domestic waste requiring the mine to increase and/or improve the landfill site resulting in financial risk.
N/A N/A 3 1 4 (L) 3 3 13 (S) N/A N/A N/A 3 1 4 (L) 2 3 9 (M) N/A
3Risk of groundwater contamination due to leachate generation from existing landfill site.
2 3 9 (M) 2 3 9 (M) 4 1 3 (M) 5 3 20 (S) 2 3 9 (M) 2 3 9 (M) 2 3 3 (M) 4 1 4 (L) 3 1 4 (L) 1 3 6 9M)
4Risk of surface water contamination due to dirty water runoff from unrehabilitated landfill site.
2 3 9 (M) 2 3 9 (M) 4 1 3 (M) 5 3 20 (S) 2 3 9 (M) 2 3 9 (M) 2 3 9 (M) 2 1 2 (L) 3 1 4 (L) 1 3 6 (M)
5Risk of contamination of soils due to fugitive contamination and contaminated runoff.
2 2 5 (L) 2 2 5 (L) 4 1 3 (M) 5 3 20 (S) 2 3 9 (M) 2 2 5 (L) 2 2 5 (L) 2 1 2 (L) 3 1 4 (L) 1 3 6 (M)
6Not obtaining a closure certificate for existing landfill site, impacting on overall closure for the mine.
N/A N/A 4 2 12 (M) 5 3 20 (S) 2 3 9 (M) N/A N/A 2 2 5 (L) 2 1 2 (L) 1 3 6 (M)
52 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
RISK ISSUES FOR WASTE ROCK DEPOSIT (WRD) AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
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Pro
babi
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Con
sequ
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Ran
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Pro
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Con
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Ran
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Pro
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Con
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Ran
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1Human injury or death due to sliding or falling down unrehabilitated steep slopes (uncontrolled access).
3 4 18 (S) N/A 5 1 11 (M) 3 4 18 (S) 3 4 18 (S)
The primary risks are:- adverse aesthetic/visual effect compromising the planned
final land use;- non-achievement and sustaining of biodiversity requirements
(environmental stability);- uncontrolled access resulting in potential health and safety
risks;- WRD instability resulting in erosion and subsequent safety
risks
Proper rehabilitation in accordance with the proposed strategies and design criteria should largely address the direct safety risks to humans and animals. It will also lessen the possible adverse effects of uncontrolled access to WRD. The rehabilitation of the WRD is described below. The geometry will be obtained by following deposition strategies tailored for each specific face and followed by final reshaping. - Benches with approximately 9m lifts will be constructed, intra bench
slopes of 18-24 degrees, intra bench slope length of approximately 30m and the bench width 10m;
- Ensure that the bench is as level as possible to enhance even distribution of water over the length of the bench. Construct bench parapets and cross walls, together forming paddocks on all benches. Construct a 1:10 bench back slope during the construction of the above to increase the capacity of the paddock on the bench. These measures will contain the surface runoff from the slopes on the benches thereby improving the moisture regime of the growth medium, sustain vegetation during dry seasons;
- Construct storm water paddocks on the upper surface of the WRD to contain water and evenly spread run off over the rehabilitated upper surface. As above, this will improve the moisture regime of the growth medium ad sustain vegetation during dry season;
- Cross walls must be constructed to prevent deep ponding of accumulated water in the low lying areas. This will prevent the pooling of large bodies of water and excessive ingress of water causing deep seepage/percolation into the deposit which could lead to pollution of the groundwater/surrounding areas of the deposit; and
- The entire system (surface and slopes) will act as an evaporative cover, thereby eliminating the need for storm chutes to benches and to ground level.
It has been assumed that the WRD has sufficient fines to sustain vegetation (to be confirmed). Amelioration of the growth medium includes the following: - Application of organic fertilization, inorganic fertilization and
alleviation of compaction; and- Establish indigenous vegetation over the entire facility: grass
species on the slopes and a combination of grasses and shrubs on the flat areas.
Additional assessments: - The impact of leachate/seepage by the WRD on groundwater must
be confirmed by groundwater studies.- The impact on surface water pollution due to the production of
salts by the WRD and the dirty water runoff must be confirmed by surface water studies;
- Negotiations and public participation process to determine and confirm incorporation into nature reserve;
- For the purposes of this strategic preliminary closure plan it was assumed that no topsoil will be required as a growth medium and that sufficient fines exist in the waste rock to fulfil this purpose on condition that amelioration is done correctly. The requirement for subsequent dedicated cover needs to be investigated;
- The quantity of ameliorants required on the WRD must be confirmed, based on soil analysis to determine the long-term sustainability of vegetation;
- The assumption that the WRD has a low long-term contamination potential hence not resulting in ongoing salt load generation needs to be confirmed. The requirement for a subsequent dedicated cover needs to be investigated;
- The appropriateness of the current closure criteria related to aesthetics need to be confirmed via a dedicated visual assessment. A more landscape based approach as opposed to the described engineering based approach needs to be investigated.
3 2 8 (M) N/A 3 1 4 (L) 2 3 9 (M) 2 3 9 (M)
2Faunal injury or death due to sliding or falling down unrehabilitated steep slopes (uncontrolled access).
N/A 3 2 8 (M) 3 2 8 (M) 3 2 8 (M) 3 3 13 (S) N/A 2 2 5 (L) 2 2 5 (L) 2 2 5 (L) 2 3 9 (M)
3
Not achieving the company’s policy of zero net-loss in terms of biodiversity by not establishing sustainable vegetation and biodiversity attributes/features on intra-bench slopes, benches and upper surface of the rehabilitated WRD.
N/A 4 3 17 (S) 4 3 17 (S) 4 3 17 (S) 4 4 21 (H) N/A 4 2 12 (M) 4 2 12 (M) 3 3 13 (S) 4 3 17 (S)
4Compromise the planned final land uses due to the adverse aesthetic and visual effects of the WRD on eco -tourism.
N/A 4 4 21 (H) 4 4 21 (H) 3 3 13 (S) 4 4 21 (H) N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 3 3 13 (S)
5Adverse groundwater quality effects due to contaminated seepage/leachate from WRD.
N/A 3 4 18 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) N/A 2 4 14 (S) 2 3 9 (M) 2 3 9 (M) 2 3 9 (M)
6Adverse surface and groundwater quality effects due to contaminated runoff from WRD, especially along the corridor along its toe.
N/A 4 4 21 (H) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) N/A 2 4 14 (S) 2 3 9 (M) 2 3 9 (M) 2 3 9 (M)
7
Possibility of outer slope failure (progressing to upper surface) resulting in local environmental/land use impairment/damage and safety threats to animals and people.
2 4 14 (S) 3 4 18 (S) 3 4 18 (S) 3 4 18 (S) 3 4 18 (S) 2 3 9 (M) 2 3 9 (M) 2 1 2 (L) 2 3 9 (M) 2 3 9 (M)
53ANGLO AMERICAN MINE CLOSURE TOOLBOX
RISK ISSUES FOR WASTE ROCK DEPOSIT (WRD) AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
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Con
sequ
ence
Ran
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Pro
babi
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Con
sequ
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Ran
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Pro
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Con
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Ran
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Pro
babi
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Con
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ence
Ran
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1Human injury or death due to sliding or falling down unrehabilitated steep slopes (uncontrolled access).
3 4 18 (S) N/A 5 1 11 (M) 3 4 18 (S) 3 4 18 (S)
The primary risks are:- adverse aesthetic/visual effect compromising the planned
final land use;- non-achievement and sustaining of biodiversity requirements
(environmental stability);- uncontrolled access resulting in potential health and safety
risks;- WRD instability resulting in erosion and subsequent safety
risks
Proper rehabilitation in accordance with the proposed strategies and design criteria should largely address the direct safety risks to humans and animals. It will also lessen the possible adverse effects of uncontrolled access to WRD. The rehabilitation of the WRD is described below. The geometry will be obtained by following deposition strategies tailored for each specific face and followed by final reshaping. - Benches with approximately 9m lifts will be constructed, intra bench
slopes of 18-24 degrees, intra bench slope length of approximately 30m and the bench width 10m;
- Ensure that the bench is as level as possible to enhance even distribution of water over the length of the bench. Construct bench parapets and cross walls, together forming paddocks on all benches. Construct a 1:10 bench back slope during the construction of the above to increase the capacity of the paddock on the bench. These measures will contain the surface runoff from the slopes on the benches thereby improving the moisture regime of the growth medium, sustain vegetation during dry seasons;
- Construct storm water paddocks on the upper surface of the WRD to contain water and evenly spread run off over the rehabilitated upper surface. As above, this will improve the moisture regime of the growth medium ad sustain vegetation during dry season;
- Cross walls must be constructed to prevent deep ponding of accumulated water in the low lying areas. This will prevent the pooling of large bodies of water and excessive ingress of water causing deep seepage/percolation into the deposit which could lead to pollution of the groundwater/surrounding areas of the deposit; and
- The entire system (surface and slopes) will act as an evaporative cover, thereby eliminating the need for storm chutes to benches and to ground level.
It has been assumed that the WRD has sufficient fines to sustain vegetation (to be confirmed). Amelioration of the growth medium includes the following: - Application of organic fertilization, inorganic fertilization and
alleviation of compaction; and- Establish indigenous vegetation over the entire facility: grass
species on the slopes and a combination of grasses and shrubs on the flat areas.
Additional assessments: - The impact of leachate/seepage by the WRD on groundwater must
be confirmed by groundwater studies.- The impact on surface water pollution due to the production of
salts by the WRD and the dirty water runoff must be confirmed by surface water studies;
- Negotiations and public participation process to determine and confirm incorporation into nature reserve;
- For the purposes of this strategic preliminary closure plan it was assumed that no topsoil will be required as a growth medium and that sufficient fines exist in the waste rock to fulfil this purpose on condition that amelioration is done correctly. The requirement for subsequent dedicated cover needs to be investigated;
- The quantity of ameliorants required on the WRD must be confirmed, based on soil analysis to determine the long-term sustainability of vegetation;
- The assumption that the WRD has a low long-term contamination potential hence not resulting in ongoing salt load generation needs to be confirmed. The requirement for a subsequent dedicated cover needs to be investigated;
- The appropriateness of the current closure criteria related to aesthetics need to be confirmed via a dedicated visual assessment. A more landscape based approach as opposed to the described engineering based approach needs to be investigated.
3 2 8 (M) N/A 3 1 4 (L) 2 3 9 (M) 2 3 9 (M)
2Faunal injury or death due to sliding or falling down unrehabilitated steep slopes (uncontrolled access).
N/A 3 2 8 (M) 3 2 8 (M) 3 2 8 (M) 3 3 13 (S) N/A 2 2 5 (L) 2 2 5 (L) 2 2 5 (L) 2 3 9 (M)
3
Not achieving the company’s policy of zero net-loss in terms of biodiversity by not establishing sustainable vegetation and biodiversity attributes/features on intra-bench slopes, benches and upper surface of the rehabilitated WRD.
N/A 4 3 17 (S) 4 3 17 (S) 4 3 17 (S) 4 4 21 (H) N/A 4 2 12 (M) 4 2 12 (M) 3 3 13 (S) 4 3 17 (S)
4Compromise the planned final land uses due to the adverse aesthetic and visual effects of the WRD on eco -tourism.
N/A 4 4 21 (H) 4 4 21 (H) 3 3 13 (S) 4 4 21 (H) N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 3 3 13 (S)
5Adverse groundwater quality effects due to contaminated seepage/leachate from WRD.
N/A 3 4 18 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) N/A 2 4 14 (S) 2 3 9 (M) 2 3 9 (M) 2 3 9 (M)
6Adverse surface and groundwater quality effects due to contaminated runoff from WRD, especially along the corridor along its toe.
N/A 4 4 21 (H) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) N/A 2 4 14 (S) 2 3 9 (M) 2 3 9 (M) 2 3 9 (M)
7
Possibility of outer slope failure (progressing to upper surface) resulting in local environmental/land use impairment/damage and safety threats to animals and people.
2 4 14 (S) 3 4 18 (S) 3 4 18 (S) 3 4 18 (S) 3 4 18 (S) 2 3 9 (M) 2 3 9 (M) 2 1 2 (L) 2 3 9 (M) 2 3 9 (M)
54 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
RISK ISSUES FOR FINE RESIDUE DEPOSITS (FRD) AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
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Pro
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Con
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Ran
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1Human injury or death due to sliding / falling down unrehabilitated steep slopes or drowning (uncontrolled access).
4 4 21 (H) N/A 5 3 20 (S) 4 4 21 (H) 4 4 21 (H)
The primary risks are:- FRD instability resulting in erosion and failure of the facility and
subsequent safety and environmental risks;- adverse aesthetic/visual effect compromising the planned final land
use;- non-achievement and sustaining of biodiversity requirements
(environmental stability);- uncontrolled access leading to potential health and safety risks; and- surface and groundwater pollution
Proper rehabilitation in accordance with the proposed strategies and design criteria should largely address the identified direct safety risks to humans and animals. It will also lessen the possible adverse effects of uncontrolled access to the FRDs. The rehabilitation of the FRDs is described below:- Construct a benched buttress around the FRD using waste rock from the
open pit: bench lifts = 9m, inter bench slope = 18 degrees (18-24), bench width = 10m, bench parapet walls on all benches and on upper surface = 1m high for safety and storm water control purposes. The waste rock buttress will provide a suitably modified growth medium containing sufficient fines and nutrients to sustain vegetation on the slopes and benches of the buttress;
- The surface area will be vegetated with indigenous plant species. The benches and slopes are interdependent and will provide sustainable surfaces to enhance biodiversity on the FRD in totality;
- Bench parapets and cross walls (paddocks) will contain surface runoff from the slopes on the benches to improve the moisture regime of the growth medium and sustain vegetation in a dry climate;
- A 1:10 inward slope on the benches will increase the capacity of the paddocks on the bench to ensure even distribution of water over the length of each paddock;
- Construct a waste rock cap only on the accessible area of the FRDs upper surface: 1m depth, 80m wide, concentric to the outer perimeter of the FRD or up to the point where access for earthmoving equipment becomes unsafe;
- The cap will act as an evaporative cover which will sustain vegetation. The 1m cover depth should be sufficient to prevent salination of the vegetation root zone due to capillary action from the underlying slimes (Capillary rise won’t exceed 100-200 mm above the slimes in favourable conditions);
- Capillary action is further restricted due to the abrupt change in grading of the materials at contact;
- Vegetate the capped area in the same manner as the buttress slopes and benches; and
- Construct a rock barrier on the inner perimeter of the upper surface covered with waste rock: 2m high at angle of repose to restrict unintentional access to the pond. Access control to the facility will be further enhanced once the rehabilitated FRDs have been incorporated into the nature reserve.
The following combined effects will notably reduce the potential for groundwater contamination:- Paddocks will be constructed on the waste rock to manage runoff and to
limit this runoff towards the central pond; - The waste rock could reduce the catchment area of the central pond by
approximately 25% if a 80 m wide cap, as described above, is implemented;- The reduced flow to the central pond and the strong possibility that the
pond, owing to the dry climate, will hydraulically most likely decouple from the underlying fines with a depleted phreatic level developing within these fines.
The impact on air quality and the risk of dust generation will be reduced by:- Placing waste rock and establishing vegetation on it and the surrounding
rehabilitated areas. Natural vegetation will establish in the pond area (inaccessible area) over time; and
- A rock barrier (2m high) which will also act as a windbreak.
Additional assessments:- For the purposes of this strategic preliminary closure plan it was assumed
that no topsoil will be required as a growth medium and that sufficient fines exist in the waste rock to fulfil this purpose on condition that amelioration is done correctly. Conduct dedicated waste rock cover and associated unsaturated flow modelling to determine the sustainability of such a cover and amend according to findings from the modelling;
- The quantity of ameliorants required on the FRDs must be confirmed, based on soil analysis to determine the long-term sustainability of vegetation;
- Negotiations and public participation process to determine and confirm incorporation into nature reserve
- Conduct dedicated unsaturated flow modelling on central pond and surrounding covered area to determine the potential for net footprint percolation and associated groundwater contamination. Based on these findings the planned approach for capping has to be re-evaluated;
- Covering of the fine residue with waste rock requires careful consideration and dedicated work is required to determine the ingress mitigation of such a cover and that it inadvertently does not add to increased footprint percolation.
3 4 18 (S) N/A 5 3 20 (S) 4 2 12 (M) 3 4 18 (S)
2Faunal injury or death due to sliding / falling down unrehabilitated steep slopes or drowning (uncontrolled access).
N/A 3 3 13 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S) N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 2 3 9 (M)
3
Not achieving the company’s policy of zero net-loss in terms of biodiversity by not establishing sustainable vegetation and biodiversity attributes/features on intra-bench slopes of the rehabilitated FRD
N/A 4 3 17 (S) 4 3 17 (S) 4 3 17 (S) 4 4 21 (H) N/A 4 2 12 (M) 4 2 12 (M) 3 3 13 (S) 4 3 17 (S)
4Compromise the planned final land uses due to the adverse aesthetic and visual effects of the FRD on eco -tourism.
N/A 4 4 21 (H) 4 4 21 (H) 3 3 13 (S) 4 4 21 (H) N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 3 3 13 (S)
5Threat to people, animals and birds as a result of poor surface and groundwater quality and impacts on downstream land users.
3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 4 3 17 (H) 3 3 13 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S)
6
Possibility of outer slope failure (progressing to upper surface) resulting in local environmental/land use impairment/damage and safety threats to animals and people.
4 4 21 (H) 5 4 23 (H) 4 5 24 (H) 4 4 21 (H) 4 5 24 (H) 1 4 10 (M) 1 4 10 (M) 1 4 10 (M) 4 1 3 (M) 1 5 15 (S)
7Risk of high dust pollution levels, which may have an impact on the final land use.
3 4 18 (S) 3 4 18 (S) 3 4 18 )S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 2 4 14 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S)
55ANGLO AMERICAN MINE CLOSURE TOOLBOX
RISK ISSUES FOR FINE RESIDUE DEPOSITS (FRD) AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
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Con
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Ran
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Con
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Ran
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Con
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Ran
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1Human injury or death due to sliding / falling down unrehabilitated steep slopes or drowning (uncontrolled access).
4 4 21 (H) N/A 5 3 20 (S) 4 4 21 (H) 4 4 21 (H)
The primary risks are:- FRD instability resulting in erosion and failure of the facility and
subsequent safety and environmental risks;- adverse aesthetic/visual effect compromising the planned final land
use;- non-achievement and sustaining of biodiversity requirements
(environmental stability);- uncontrolled access leading to potential health and safety risks; and- surface and groundwater pollution
Proper rehabilitation in accordance with the proposed strategies and design criteria should largely address the identified direct safety risks to humans and animals. It will also lessen the possible adverse effects of uncontrolled access to the FRDs. The rehabilitation of the FRDs is described below:- Construct a benched buttress around the FRD using waste rock from the
open pit: bench lifts = 9m, inter bench slope = 18 degrees (18-24), bench width = 10m, bench parapet walls on all benches and on upper surface = 1m high for safety and storm water control purposes. The waste rock buttress will provide a suitably modified growth medium containing sufficient fines and nutrients to sustain vegetation on the slopes and benches of the buttress;
- The surface area will be vegetated with indigenous plant species. The benches and slopes are interdependent and will provide sustainable surfaces to enhance biodiversity on the FRD in totality;
- Bench parapets and cross walls (paddocks) will contain surface runoff from the slopes on the benches to improve the moisture regime of the growth medium and sustain vegetation in a dry climate;
- A 1:10 inward slope on the benches will increase the capacity of the paddocks on the bench to ensure even distribution of water over the length of each paddock;
- Construct a waste rock cap only on the accessible area of the FRDs upper surface: 1m depth, 80m wide, concentric to the outer perimeter of the FRD or up to the point where access for earthmoving equipment becomes unsafe;
- The cap will act as an evaporative cover which will sustain vegetation. The 1m cover depth should be sufficient to prevent salination of the vegetation root zone due to capillary action from the underlying slimes (Capillary rise won’t exceed 100-200 mm above the slimes in favourable conditions);
- Capillary action is further restricted due to the abrupt change in grading of the materials at contact;
- Vegetate the capped area in the same manner as the buttress slopes and benches; and
- Construct a rock barrier on the inner perimeter of the upper surface covered with waste rock: 2m high at angle of repose to restrict unintentional access to the pond. Access control to the facility will be further enhanced once the rehabilitated FRDs have been incorporated into the nature reserve.
The following combined effects will notably reduce the potential for groundwater contamination:- Paddocks will be constructed on the waste rock to manage runoff and to
limit this runoff towards the central pond; - The waste rock could reduce the catchment area of the central pond by
approximately 25% if a 80 m wide cap, as described above, is implemented;- The reduced flow to the central pond and the strong possibility that the
pond, owing to the dry climate, will hydraulically most likely decouple from the underlying fines with a depleted phreatic level developing within these fines.
The impact on air quality and the risk of dust generation will be reduced by:- Placing waste rock and establishing vegetation on it and the surrounding
rehabilitated areas. Natural vegetation will establish in the pond area (inaccessible area) over time; and
- A rock barrier (2m high) which will also act as a windbreak.
Additional assessments:- For the purposes of this strategic preliminary closure plan it was assumed
that no topsoil will be required as a growth medium and that sufficient fines exist in the waste rock to fulfil this purpose on condition that amelioration is done correctly. Conduct dedicated waste rock cover and associated unsaturated flow modelling to determine the sustainability of such a cover and amend according to findings from the modelling;
- The quantity of ameliorants required on the FRDs must be confirmed, based on soil analysis to determine the long-term sustainability of vegetation;
- Negotiations and public participation process to determine and confirm incorporation into nature reserve
- Conduct dedicated unsaturated flow modelling on central pond and surrounding covered area to determine the potential for net footprint percolation and associated groundwater contamination. Based on these findings the planned approach for capping has to be re-evaluated;
- Covering of the fine residue with waste rock requires careful consideration and dedicated work is required to determine the ingress mitigation of such a cover and that it inadvertently does not add to increased footprint percolation.
3 4 18 (S) N/A 5 3 20 (S) 4 2 12 (M) 3 4 18 (S)
2Faunal injury or death due to sliding / falling down unrehabilitated steep slopes or drowning (uncontrolled access).
N/A 3 3 13 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S) N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 2 3 9 (M)
3
Not achieving the company’s policy of zero net-loss in terms of biodiversity by not establishing sustainable vegetation and biodiversity attributes/features on intra-bench slopes of the rehabilitated FRD
N/A 4 3 17 (S) 4 3 17 (S) 4 3 17 (S) 4 4 21 (H) N/A 4 2 12 (M) 4 2 12 (M) 3 3 13 (S) 4 3 17 (S)
4Compromise the planned final land uses due to the adverse aesthetic and visual effects of the FRD on eco -tourism.
N/A 4 4 21 (H) 4 4 21 (H) 3 3 13 (S) 4 4 21 (H) N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 3 3 13 (S)
5Threat to people, animals and birds as a result of poor surface and groundwater quality and impacts on downstream land users.
3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 4 3 17 (H) 3 3 13 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S)
6
Possibility of outer slope failure (progressing to upper surface) resulting in local environmental/land use impairment/damage and safety threats to animals and people.
4 4 21 (H) 5 4 23 (H) 4 5 24 (H) 4 4 21 (H) 4 5 24 (H) 1 4 10 (M) 1 4 10 (M) 1 4 10 (M) 4 1 3 (M) 1 5 15 (S)
7Risk of high dust pollution levels, which may have an impact on the final land use.
3 4 18 (S) 3 4 18 (S) 3 4 18 )S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 2 4 14 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S)
56 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
RISK ISSUES FOR COARSE RESIDUE DEPOSIT (CRD) AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
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Con
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Ran
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Pro
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Con
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1Human injury or death due to sliding or falling down unrehabilitated steep slopes (uncontrolled access).
4 4 21 )H) N/A 5 3 20 (S) 4 4 21 (H) 4 4 21 (H)
The primary risks are:- adverse aesthetic/visual effect compromising the planned final land
use;- CRD erodibility and subsequent safety risks;- non-achievement and sustaining of biodiversity requirements
(environmental stability);- uncontrolled access resulting in health and safety risks; and- surface and groundwater pollution
Proper rehabilitation in accordance with the proposed strategies and design criteria should largely address the identified direct safety risks to humans and animals. It will also lessen the possible adverse effects of uncontrolled access to the CRD. The rehabilitation of the CRD is described below:- For premature closure:
Profile the CRD, creating benches. Cover the entire facility using waste rock from the pit excavation: bench lifts = 9m, inter bench slope =18 degrees (18-24), bench width = 10m, bench parapet on all benches and on upper surface = 1m high for safety and storm water control;
- For LoM closure: Construct a benched buttress around the CRD, without reshaping the CRD,
using waste rock from the pit excavation: bench lifts = 9m, inter bench slope =18 degrees (18-24), bench width = 10m, bench parapet on all benches and on upper surface = 1m high for safety and storm water control;
- The waste rock buttress will provide a suitably modified growth medium containing sufficient fines and nutrients to sustain vegetation on the slopes and benches of the buttress. The surface area will be vegetated with indigenous plant species;
- The benches and slopes are interdependent and will provide a sustainable surfaces to enhance biodiversity on the CRD in totality;
- Bench parapets and cross walls (paddocks) will contain surface runoff from the slopes on the benches thereby improving the moisture regime of the growth medium, sustain vegetation during dry seasons;
- A 1:10 inward slope on the benches to increase the capacity of the paddocks on the bench to ensure even distribution of water over the length of each paddock. These measures will contain the surface runoff from the slopes on the benches thereby improving the moisture regime of the growth medium, sustain vegetation during dry seasons;
- The waste rock cover will restrict possible ingress of rainfall and limit possible net footprint percolation into the deposit which could lead to pollution of the groundwater/surrounding areas of the deposit;
- The cover depth should be sufficient to prevent salination of the vegetation root zone due to capillary action from the underlying coarse residue (capillary rise won’t exceed 100-200 mm);
- Capillary action is further restricted due to the abrupt change in grading of the materials at contact; and
- Vegetate the cover the same as the buttress slopes and benches.
The following will notably reduce the potential for groundwater contamination:- Paddocks will be constructed to contain rainwater, facilitate evapo-
transporation thereby reducing percolation.
The impact on air quality and the risk of dust generation will be reduced by:
- Establishing vegetation on the rehabilitated areas.
Additional assessments:- The quantity of ameliorants needed on the CRD must be confirmed based on
a soil analysis for long-term sustainability of vegetation.- Do further feasibilty studies regarding the future re-mining/resource value of
CRD.- Investigate the option of expanding the CRD southwards to take available
airspace into consideration and facilitate rehabilitation.- The impact of leachate / seepage by the CRD on groundwater pollution must
be confirmed by geochemical work and groundwater studies.- The impact on surface water pollution due to production of dirty water runoff
must be confirmed by surface water studies.- Conducted dedicated waste rock cover and associated unsaturated flow
modelling to determine the suitability of such a cover and amend according of the findings from the modelling - Residual risk
- Covering of the coarse residue with waste rock requires careful consideration and dedicated work is required to determine the ingress mitigation of such a cover and that it inadvertently does not add to increased footprint percolation.
- Negotiations and public participation process to determine and confirm incorporation into nature reserve.
3 3 13 (S) N/A 3 2 8 (M) 4 1 3 (M) 2 3 9 (M)
2Faunal injury or death due to sliding or falling down unrehabilitated steep slopes (uncontrolled access).
N/A 3 3 13 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S) N/A 2 3 9 (M) 2 1 2 (L) 2 1 2 (L) 2 3 9 (M)
3
Not achieving the company’s policy of zero net-loss in terms of biodiversity by not establishing sustainable vegetation and biodiversity attributes/features on intra-bench slopes of the rehabilitated CRD
N/A 4 3 17 (S) 4 2 12 (M) 4 3 17 (S) 4 3 17 (S) N/A 2 2 5 (L) 2 1 2 (L) 1 3 6 (M) 3 3 13 (S)
4Compromise the planned final land uses due to the adverse aesthetic and visual effects of the CRD on eco -tourism.
N/A 4 4 21 (H) 4 2 12 (M) 3 3 13 (S) 4 3 17 (S) N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 3 3 13 (S)
5Adverse surface and groundwater quality effects due to contaminated seepage/leachate from CRD.
3 4 18 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 4 3 17 (S) 2 3 9 (M) 2 4 14 (S) 2 3 9 (M) 3 3 13 (S) 2 3 9 (M)
6
Possibility of outer slope failure (progressing to upper surface) resulting in local environmental/land use impairment/damage and safety threats to animals and people.
3 4 18 (S) 3 3 13 (S) 4 2 12 (M) 4 3 17 (S) 4 3 17 (S) 1 4 10 (M) 1 3 6 (M) 1 2 3 (L) 3 1 4 (L) 1 4 10 (M)
7Risk of high dust pollution levels, which may have an impact on the final land use.
2 4 14 (S) 2 4 14 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S) 2 3 9 (M) 2 3 9 (M) 2 2 5 (L) 2 3 9 (M) 2 3 9 (M)
57ANGLO AMERICAN MINE CLOSURE TOOLBOX
RISK ISSUES FOR COARSE RESIDUE DEPOSIT (CRD) AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
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Con
sequ
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Ran
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Pro
babi
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Con
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Ran
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Pro
babi
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Con
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Ran
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Pro
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Con
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Pro
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Con
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Con
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Con
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Con
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Con
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Ran
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1Human injury or death due to sliding or falling down unrehabilitated steep slopes (uncontrolled access).
4 4 21 )H) N/A 5 3 20 (S) 4 4 21 (H) 4 4 21 (H)
The primary risks are:- adverse aesthetic/visual effect compromising the planned final land
use;- CRD erodibility and subsequent safety risks;- non-achievement and sustaining of biodiversity requirements
(environmental stability);- uncontrolled access resulting in health and safety risks; and- surface and groundwater pollution
Proper rehabilitation in accordance with the proposed strategies and design criteria should largely address the identified direct safety risks to humans and animals. It will also lessen the possible adverse effects of uncontrolled access to the CRD. The rehabilitation of the CRD is described below:- For premature closure:
Profile the CRD, creating benches. Cover the entire facility using waste rock from the pit excavation: bench lifts = 9m, inter bench slope =18 degrees (18-24), bench width = 10m, bench parapet on all benches and on upper surface = 1m high for safety and storm water control;
- For LoM closure: Construct a benched buttress around the CRD, without reshaping the CRD,
using waste rock from the pit excavation: bench lifts = 9m, inter bench slope =18 degrees (18-24), bench width = 10m, bench parapet on all benches and on upper surface = 1m high for safety and storm water control;
- The waste rock buttress will provide a suitably modified growth medium containing sufficient fines and nutrients to sustain vegetation on the slopes and benches of the buttress. The surface area will be vegetated with indigenous plant species;
- The benches and slopes are interdependent and will provide a sustainable surfaces to enhance biodiversity on the CRD in totality;
- Bench parapets and cross walls (paddocks) will contain surface runoff from the slopes on the benches thereby improving the moisture regime of the growth medium, sustain vegetation during dry seasons;
- A 1:10 inward slope on the benches to increase the capacity of the paddocks on the bench to ensure even distribution of water over the length of each paddock. These measures will contain the surface runoff from the slopes on the benches thereby improving the moisture regime of the growth medium, sustain vegetation during dry seasons;
- The waste rock cover will restrict possible ingress of rainfall and limit possible net footprint percolation into the deposit which could lead to pollution of the groundwater/surrounding areas of the deposit;
- The cover depth should be sufficient to prevent salination of the vegetation root zone due to capillary action from the underlying coarse residue (capillary rise won’t exceed 100-200 mm);
- Capillary action is further restricted due to the abrupt change in grading of the materials at contact; and
- Vegetate the cover the same as the buttress slopes and benches.
The following will notably reduce the potential for groundwater contamination:- Paddocks will be constructed to contain rainwater, facilitate evapo-
transporation thereby reducing percolation.
The impact on air quality and the risk of dust generation will be reduced by:
- Establishing vegetation on the rehabilitated areas.
Additional assessments:- The quantity of ameliorants needed on the CRD must be confirmed based on
a soil analysis for long-term sustainability of vegetation.- Do further feasibilty studies regarding the future re-mining/resource value of
CRD.- Investigate the option of expanding the CRD southwards to take available
airspace into consideration and facilitate rehabilitation.- The impact of leachate / seepage by the CRD on groundwater pollution must
be confirmed by geochemical work and groundwater studies.- The impact on surface water pollution due to production of dirty water runoff
must be confirmed by surface water studies.- Conducted dedicated waste rock cover and associated unsaturated flow
modelling to determine the suitability of such a cover and amend according of the findings from the modelling - Residual risk
- Covering of the coarse residue with waste rock requires careful consideration and dedicated work is required to determine the ingress mitigation of such a cover and that it inadvertently does not add to increased footprint percolation.
- Negotiations and public participation process to determine and confirm incorporation into nature reserve.
3 3 13 (S) N/A 3 2 8 (M) 4 1 3 (M) 2 3 9 (M)
2Faunal injury or death due to sliding or falling down unrehabilitated steep slopes (uncontrolled access).
N/A 3 3 13 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S) N/A 2 3 9 (M) 2 1 2 (L) 2 1 2 (L) 2 3 9 (M)
3
Not achieving the company’s policy of zero net-loss in terms of biodiversity by not establishing sustainable vegetation and biodiversity attributes/features on intra-bench slopes of the rehabilitated CRD
N/A 4 3 17 (S) 4 2 12 (M) 4 3 17 (S) 4 3 17 (S) N/A 2 2 5 (L) 2 1 2 (L) 1 3 6 (M) 3 3 13 (S)
4Compromise the planned final land uses due to the adverse aesthetic and visual effects of the CRD on eco -tourism.
N/A 4 4 21 (H) 4 2 12 (M) 3 3 13 (S) 4 3 17 (S) N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 3 3 13 (S)
5Adverse surface and groundwater quality effects due to contaminated seepage/leachate from CRD.
3 4 18 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 4 3 17 (S) 2 3 9 (M) 2 4 14 (S) 2 3 9 (M) 3 3 13 (S) 2 3 9 (M)
6
Possibility of outer slope failure (progressing to upper surface) resulting in local environmental/land use impairment/damage and safety threats to animals and people.
3 4 18 (S) 3 3 13 (S) 4 2 12 (M) 4 3 17 (S) 4 3 17 (S) 1 4 10 (M) 1 3 6 (M) 1 2 3 (L) 3 1 4 (L) 1 4 10 (M)
7Risk of high dust pollution levels, which may have an impact on the final land use.
2 4 14 (S) 2 4 14 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S) 2 3 9 (M) 2 3 9 (M) 2 2 5 (L) 2 3 9 (M) 2 3 9 (M)
58 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
RISK ISSUES FOR OPEN PIT AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
1
Failure of the open pit side walls and under-estimating the extent of the break back zone, resulting in a safety issue for human and animals as well as the long term stability of surrounding areas and thereby compromising the planned final land use.
4 4 21 (H) 4 3 17 (S) 4 2 12 (M) 4 4 21 (H) 4 4 21 (H)
Primary risks relate to stability and safety concerns, and include the following:
Unauthorised access and the potential for human injury or death is the main concern. This safety risk is mitigated through the construction of a dedicated waste rock barrier along the perimeter of the break back zone (based on safety factor 1) where practically possible. Dense vegetation species will be established along the corridor between the pit rim and the inner toe of the waste rock barrier.
The final land use options of integrating the mining area into the bigger conservation / ecotourism area will also reduce free access to the area by people from the public (Fenced and security protected area).
Stakeholder engagement throughout the LoM to manage expectations related to pit closure based on current agreed closure criteria.
The possibility of groundwater draw down and the associated effect on yield.
Additional assessments:
- The possibility of groundwater draw down and the associated effect on yield must be determined by specialist studies;
- The quantity of fertilizers and organic material to be used on the rock barrier must be confirmed, based on soil analysis;
- Stakeholder engagement throughout the LoM to manage expectations related to the closure requirements for the pit based on the current closure criteria.
2 4 14 (S) 4 3 17 (S) 2 1 2 (L) 4 2 12 (M) 2 4 14 (S)
2Human injury or death due to uncontrolled access to the pit (falling into the pit)
4 4 21 (H) N/A 4 2 12 (M) 4 4 21 (H) 4 4 21 (H) 2 4 14 (S) N/A 2 2 5 (L) 4 2 12 (M) 2 4 14 (S)
3Faunal injury or death due to uncontrolled access to the pit (falling into the pit)
N/A 3 3 13 (S) 3 1 4 (L) 3 3 13 (S) 3 3 13 (S) N/A 2 3 9 (M) 2 1 2 (L) 2 3 9 (M) 2 3 9 (M)
4Possibility of local groundwater draw down at the pit, resulting in reduced local groundwater yield.
N/A 3 4 18 (S) 3 1 4 (L) 3 3 13 (S) 3 4 18 (S) N/A 3 4 18 (S) 3 1 4 (L) 3 3 13 (S) 3 4 18 (S)
5Not meeting the expectations of stakeholders with regards to closure and not obtaining the subsequent certificate of closure.
N/A N/A 2 5 19 (S) 3 3 13 (S) 3 4 18 (S) N/A N/A 3 1 4 (L) 3 2 8 (M) 3 2 8 (M)
59ANGLO AMERICAN MINE CLOSURE TOOLBOX
RISK ISSUES FOR OPEN PIT AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
1
Failure of the open pit side walls and under-estimating the extent of the break back zone, resulting in a safety issue for human and animals as well as the long term stability of surrounding areas and thereby compromising the planned final land use.
4 4 21 (H) 4 3 17 (S) 4 2 12 (M) 4 4 21 (H) 4 4 21 (H)
Primary risks relate to stability and safety concerns, and include the following:
Unauthorised access and the potential for human injury or death is the main concern. This safety risk is mitigated through the construction of a dedicated waste rock barrier along the perimeter of the break back zone (based on safety factor 1) where practically possible. Dense vegetation species will be established along the corridor between the pit rim and the inner toe of the waste rock barrier.
The final land use options of integrating the mining area into the bigger conservation / ecotourism area will also reduce free access to the area by people from the public (Fenced and security protected area).
Stakeholder engagement throughout the LoM to manage expectations related to pit closure based on current agreed closure criteria.
The possibility of groundwater draw down and the associated effect on yield.
Additional assessments:
- The possibility of groundwater draw down and the associated effect on yield must be determined by specialist studies;
- The quantity of fertilizers and organic material to be used on the rock barrier must be confirmed, based on soil analysis;
- Stakeholder engagement throughout the LoM to manage expectations related to the closure requirements for the pit based on the current closure criteria.
2 4 14 (S) 4 3 17 (S) 2 1 2 (L) 4 2 12 (M) 2 4 14 (S)
2Human injury or death due to uncontrolled access to the pit (falling into the pit)
4 4 21 (H) N/A 4 2 12 (M) 4 4 21 (H) 4 4 21 (H) 2 4 14 (S) N/A 2 2 5 (L) 4 2 12 (M) 2 4 14 (S)
3Faunal injury or death due to uncontrolled access to the pit (falling into the pit)
N/A 3 3 13 (S) 3 1 4 (L) 3 3 13 (S) 3 3 13 (S) N/A 2 3 9 (M) 2 1 2 (L) 2 3 9 (M) 2 3 9 (M)
4Possibility of local groundwater draw down at the pit, resulting in reduced local groundwater yield.
N/A 3 4 18 (S) 3 1 4 (L) 3 3 13 (S) 3 4 18 (S) N/A 3 4 18 (S) 3 1 4 (L) 3 3 13 (S) 3 4 18 (S)
5Not meeting the expectations of stakeholders with regards to closure and not obtaining the subsequent certificate of closure.
N/A N/A 2 5 19 (S) 3 3 13 (S) 3 4 18 (S) N/A N/A 3 1 4 (L) 3 2 8 (M) 3 2 8 (M)
60 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
RISK ISSUES FOR OFFSITE INFRASTRUCTURE AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
1. POTABLE WATER SUPPLY INFRASTRUCTURE
1.1 Well fields and associated infrastructureThe primary risks relate to not transferring the offsite infrastructure to third parties and the risk that associated infrastructure could fall into a state of disrepair, resulting in additional financial or reputational liability.
Initiate and conduct early and proactive negotiations with possible third parties and decide timeously on the long term future / transferibility of the relevant infrastructure, aligned to the final land use.
iPossibility of not transferring to 3rd parties resulting in closure and rehabilitation intervention.
3 4 18 (S) 2 3 9 (M) 3 1 4 (L) 3 4 18(S) 3 4 18 (S) 1 4 10 (M) 1 3 6 (M) 1 1 1 (L) 2 1 2 (L) 1 4 10 (M)
1.2 Mine dam
iPossibility of not transferring to 3rd parties resulting in closure and rehabilitation intervention.
3 4 18 (S) 2 3 9 (M) 3 1 4 (L) 3 4 18(S) 3 4 18 (S) 1 4 10 (M) 1 3 6 (M) 1 1 1 (L) 2 1 2 (L) 1 4 10 (M)
2 HOUSING, PROPERTIES & FACILITIES
2.1 Local town
Possibility of ongoing care and maintenance and municipal costs as a result of not transferring to 3rd parties
N/A N/A 5 2 16 (S) N/A 3 3 13 (S) N/A N/A 1 1 1 (L) N/A 1 1 1 (L)
61ANGLO AMERICAN MINE CLOSURE TOOLBOX
RISK ISSUES FOR OFFSITE INFRASTRUCTURE AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
1. POTABLE WATER SUPPLY INFRASTRUCTURE
1.1 Well fields and associated infrastructureThe primary risks relate to not transferring the offsite infrastructure to third parties and the risk that associated infrastructure could fall into a state of disrepair, resulting in additional financial or reputational liability.
Initiate and conduct early and proactive negotiations with possible third parties and decide timeously on the long term future / transferibility of the relevant infrastructure, aligned to the final land use.
iPossibility of not transferring to 3rd parties resulting in closure and rehabilitation intervention.
3 4 18 (S) 2 3 9 (M) 3 1 4 (L) 3 4 18(S) 3 4 18 (S) 1 4 10 (M) 1 3 6 (M) 1 1 1 (L) 2 1 2 (L) 1 4 10 (M)
1.2 Mine dam
iPossibility of not transferring to 3rd parties resulting in closure and rehabilitation intervention.
3 4 18 (S) 2 3 9 (M) 3 1 4 (L) 3 4 18(S) 3 4 18 (S) 1 4 10 (M) 1 3 6 (M) 1 1 1 (L) 2 1 2 (L) 1 4 10 (M)
2 HOUSING, PROPERTIES & FACILITIES
2.1 Local town
Possibility of ongoing care and maintenance and municipal costs as a result of not transferring to 3rd parties
N/A N/A 5 2 16 (S) N/A 3 3 13 (S) N/A N/A 1 1 1 (L) N/A 1 1 1 (L)
62 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
RISK ISSUES FOR BIO-PHYSICAL ASPECTS AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
BIODIVERSITY: FAUNA, FLORA, SENSITIVE SPECIES
1 The mine does not achieve “no net loss” on biodiversity and that will have a reputational risk for the company N/A 4 3 17 (S) 4 3 17 (S) 4 3 17 (S) 4 2 21 (H)
At closure and during the I&AP consultation process, the final land use must be explained and end land users at closure must be determined.
Additional assessments: Determine post closure residual impact on biodiversity.
N/A 2 3 9 (M) 2 3 9 (M) 2 3 9 (M) 3 4 18 (S)
PROTECTED HABITATS/ECOSYSTEMS
2 The wellfields are situated within a Riverine forest inside a world heritage site. This may have a potential financial risk for the company if these sites must be rehabilitated accordingly.
N/A 2 5 19 (S) 3 2 8 (M) 3 4 18 (S) 3 4 18 (S)
Additional assessments: Initiate and conduct early and proactive negotiations with possible third parties and decide timeously on the long term future of the relevant infrastructure, aligned to the final land use. This will determine the need for rehabilitation of the wellfields.
N/A 2 4 14 (S) 3 2 8 (M) 2 4 14 (S) 3 3 13 (M)
GROUNDWATER 3 No detailed studies have been undertaken to assess the potential post closure impacts on the groundwater, due to the pit, residue deposits and the wellfields.
3 4 18 (S) 4 4 21 (H) 4 3 17 (S) 4 3 17 (S) 4 3 17 (S)
The following mitigation actions must be applied:- Surface and groundwater contamination will be managed and proper
rehabilitation strategies will be implemented during LoM;- An assumption is that legal compliance will be adhere to at closure;- Surface & groundwater contamination will be managed through
implementation of proper rehabilitation strategies (Refer to closure criteria for mine residue deposits);
- Proper stormwater management during LoM (including areas around open pit); and
- Incorporate as far as possible surface water planning into natural drainage patterns.
Additional assessments: Surface and groundwater studies will be conducted to refine closure strategies and determine remediation methods, if any.
3 3 13 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S)
4 Adverse groundwater quality effects due to contaminated seepage/leachate from the residue deposits. No remediation methods have been identified.
SURFACE WATER 5 No detailed studies have been undertaken to assess the potential post closure impacts on the surface water, due to the runoff from the residue deposits (the residue deposits will have the biggest post closure impact on surface water).
3 4 18 (S) 4 4 21 (H) 4 2 12 (M) 4 3 17 (S) 4 3 17 (S) 3 3 13 (S) 3 4 18 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S)6 Secondary surface water pollution of
thelocal river affecting downstream use, due to seepage/leakage/spillage of dirty surface water from the earth dam down gradient of the CRD and FRD. No remediation methods have been identified.
AIR QUALITY 7The residue deposits will be the main source of air pollution after closure and might have an impact on the final land use (Currently the mine only monitors dust fallout).
3 4 18 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 4 3 17 (S)
Effective implementation of sustainable rehabilitation of mine residue deposits will limit dust impacts on air quality; and Post closure monitoring and maintenance of vegetation cover must include comments on dust generation of mine residue deposits.
Additional assessments: Modelling must be done for the air quality monitoring.
2 3 9 (M) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S)
SOIL (eg Soil contamination) LAND CAPABILITY AND LAND USE
8 The potential impact on soil can be associated with the landfill site, sewage sludge and hydrocarbons, resulting in a loss in land capability.
3 3 13 (S) 3 3 13 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S)
The following mitigation actions must be applied:- Effective soil management practices must be implemented throughout
LoM;- During the I&AP consultation, the final land use will be explained and end
land users at closure will be determined; and
- Effective rehabilitation and remediation practices will maximize land capability of disturbed areas.
Additional assessments:- A Land capability plan must be generated and take into account the
closure vision.- Conduct regular surveys during LoM to identify all present and future
polluted areas and do appropriate remediation of the polluted soils accordingly. A final survey must be redone at decommissioning.
2 3 9 (M) 2 3 9 (M) 3 2 8 (M) 2 3 9 (M) 2 3 9 (M)
9 The area has a low arable capability due to low rainfall and high evaporation which also reduce the potential for certain land uses.
TOPOGRAPHY/VISUAL
10 The FRDs, CRDs and waste rock dumps will have the largest visual impact. The planned final land uses may be compromised due to the adverse aesthetic and visual effects of the mine residue deposits on eco -tourism.
N/A 4 4 21 (H) 4 4 21 (H) 3 3 13 (S) 4 4 21 (H)
Effective rehabilitation practices will minimise the visual impact, especially at the mine residue deposits and open pit which will remain after closure (see detailed closure criteria). N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 3 3 13 (S)
63ANGLO AMERICAN MINE CLOSURE TOOLBOX
RISK ISSUES FOR BIO-PHYSICAL ASPECTS AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
SAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITYSAFETY/ HEALTH
ENVIRON-MENTAL FINANCIAL
LEGAL & REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
BIODIVERSITY: FAUNA, FLORA, SENSITIVE SPECIES
1 The mine does not achieve “no net loss” on biodiversity and that will have a reputational risk for the company N/A 4 3 17 (S) 4 3 17 (S) 4 3 17 (S) 4 2 21 (H)
At closure and during the I&AP consultation process, the final land use must be explained and end land users at closure must be determined.
Additional assessments: Determine post closure residual impact on biodiversity.
N/A 2 3 9 (M) 2 3 9 (M) 2 3 9 (M) 3 4 18 (S)
PROTECTED HABITATS/ECOSYSTEMS
2 The wellfields are situated within a Riverine forest inside a world heritage site. This may have a potential financial risk for the company if these sites must be rehabilitated accordingly.
N/A 2 5 19 (S) 3 2 8 (M) 3 4 18 (S) 3 4 18 (S)
Additional assessments: Initiate and conduct early and proactive negotiations with possible third parties and decide timeously on the long term future of the relevant infrastructure, aligned to the final land use. This will determine the need for rehabilitation of the wellfields.
N/A 2 4 14 (S) 3 2 8 (M) 2 4 14 (S) 3 3 13 (M)
GROUNDWATER 3 No detailed studies have been undertaken to assess the potential post closure impacts on the groundwater, due to the pit, residue deposits and the wellfields.
3 4 18 (S) 4 4 21 (H) 4 3 17 (S) 4 3 17 (S) 4 3 17 (S)
The following mitigation actions must be applied:- Surface and groundwater contamination will be managed and proper
rehabilitation strategies will be implemented during LoM;- An assumption is that legal compliance will be adhere to at closure;- Surface & groundwater contamination will be managed through
implementation of proper rehabilitation strategies (Refer to closure criteria for mine residue deposits);
- Proper stormwater management during LoM (including areas around open pit); and
- Incorporate as far as possible surface water planning into natural drainage patterns.
Additional assessments: Surface and groundwater studies will be conducted to refine closure strategies and determine remediation methods, if any.
3 3 13 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S)
4 Adverse groundwater quality effects due to contaminated seepage/leachate from the residue deposits. No remediation methods have been identified.
SURFACE WATER 5 No detailed studies have been undertaken to assess the potential post closure impacts on the surface water, due to the runoff from the residue deposits (the residue deposits will have the biggest post closure impact on surface water).
3 4 18 (S) 4 4 21 (H) 4 2 12 (M) 4 3 17 (S) 4 3 17 (S) 3 3 13 (S) 3 4 18 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S)6 Secondary surface water pollution of
thelocal river affecting downstream use, due to seepage/leakage/spillage of dirty surface water from the earth dam down gradient of the CRD and FRD. No remediation methods have been identified.
AIR QUALITY 7The residue deposits will be the main source of air pollution after closure and might have an impact on the final land use (Currently the mine only monitors dust fallout).
3 4 18 (S) 3 4 18 (S) 3 3 13 (S) 3 3 13 (S) 4 3 17 (S)
Effective implementation of sustainable rehabilitation of mine residue deposits will limit dust impacts on air quality; and Post closure monitoring and maintenance of vegetation cover must include comments on dust generation of mine residue deposits.
Additional assessments: Modelling must be done for the air quality monitoring.
2 3 9 (M) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S) 3 3 13 (S)
SOIL (eg Soil contamination) LAND CAPABILITY AND LAND USE
8 The potential impact on soil can be associated with the landfill site, sewage sludge and hydrocarbons, resulting in a loss in land capability.
3 3 13 (S) 3 3 13 (S) 3 2 8 (M) 3 3 13 (S) 3 3 13 (S)
The following mitigation actions must be applied:- Effective soil management practices must be implemented throughout
LoM;- During the I&AP consultation, the final land use will be explained and end
land users at closure will be determined; and
- Effective rehabilitation and remediation practices will maximize land capability of disturbed areas.
Additional assessments:- A Land capability plan must be generated and take into account the
closure vision.- Conduct regular surveys during LoM to identify all present and future
polluted areas and do appropriate remediation of the polluted soils accordingly. A final survey must be redone at decommissioning.
2 3 9 (M) 2 3 9 (M) 3 2 8 (M) 2 3 9 (M) 2 3 9 (M)
9 The area has a low arable capability due to low rainfall and high evaporation which also reduce the potential for certain land uses.
TOPOGRAPHY/VISUAL
10 The FRDs, CRDs and waste rock dumps will have the largest visual impact. The planned final land uses may be compromised due to the adverse aesthetic and visual effects of the mine residue deposits on eco -tourism.
N/A 4 4 21 (H) 4 4 21 (H) 3 3 13 (S) 4 4 21 (H)
Effective rehabilitation practices will minimise the visual impact, especially at the mine residue deposits and open pit which will remain after closure (see detailed closure criteria). N/A 3 3 13 (S) 3 2 8 (M) 2 3 9 (M) 3 3 13 (S)
64 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
DIRECT IMPACTS ON SOCIO-ECONOMIC ASPECTS AT CLOSURE
RISK ISSUES FOR SOCIO-ECONOMIC ASPECTS AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
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Con
sequ
ence
Ran
king
1. EMPLOYEES
1.1
Loss and security of income
The expectations of ex-employees, seeking further compensation or reimbursement after retrenchment due to the lack of finding alternative employment, resulting in financial, legal and reputational risks for the company, after closure.
4 2 12 (M) 3 3 13 (S) 4 4 21 (H)
According to the Social and Labour Plan of 2013: The company in conjunction with other stakeholders, through the Process to Manage Downscaling and Retrenchments, shall undertake to provide skills training opportunities to employees during their employment in order to improve their income earning capacity in the event of downscaling or retrenchment processes. The skills programme will be implemented before mine closure to provide sufficient time to re-skill the employees.
The following mitigation measures are in place:i. Retrenchment packages for mine employees;ii. Portable skills training; andiii. Facilitation of opportunities for re-employment
Additional assessments:i. The implementation of a process to facilitate home ownership scheme for employees during their current
tenure of employment in order to mitigate their need for housing after mine closure; ii. A model needs to be developed to cost the steps necessary to reduce socio-economic risks associated
with employees and internal contractors; iii. Timeously agreements and engagement with employees upon retrenchments can limit actions in which
employees may engage and which could be to the detriment of the company (the establishment of future forums and reaching of agreements);
iv. Mitigation measures of the mine are revised every 5 years when the Social and Labour Plan (SLP) is updated.
3 2 8 (M) 2 1 2 (L) 3 3 13 (S)
1.2
The loss of salary and benefits for the mine employees, such as medical aid, housing and water & electricity allowances, which could relate to a situation where company employees might expect the company to give them preference when it comes to the sale of company properties around town (e.g. houses) and also can expect to buy them at below market rate.
3 2 8 (M) 3 3 13 (S) 3 3 13 (S) 2 2 5 (L) 2 1 2 (L) 2 3 9 (M)
2. 1 INTERESTED & AFFECTED PARTIES INTERESTED & AFFECTED PARTIES
2.1 SOCIO-PSHYCOLOGICAL
2.1.1 • Increased community and individual deprivation, fatalism and negativity;
• Increase in community isolation and the extent to which the community feels trapped in its circumstances;
• Possible collapse of social organisations initiated by the mine;
• Decline in the general quality of life
An increase in the nature and extent to which people experience a sense of loss of community identity and cohesion in an urban area, which could lead to a need for increased counselling and psychological support of ex mine employees. This could result in a situation whereby local business, churches, etc. might expect the company to support them after mine closure. N/A N/A 3 3 13 (S)
The company in conjunction with other stakeholders, through the Process to Manage Downscaling and Retrenchments, shall undertake to provide counselling and psychological support to employees during the retrenchment process in order to prepare employees for life after the closure of the mine (EAP process - Employee Assessment Processes include life skills etc).
The mine will forge necessary partnerships with organisations to ensure that sustainability to initiatives and projects is created post mine closure; The idea here is to encourage organisations to take over the ownership of projects once they are initiated and this might bring some cohesion and structure back to the community; and This might also improve their quality of life and bring positivity in the community if social organisations which were initiated can grow.
Additional assessments: The SEAT process of the AAplc Mine Closure toolbox can be used as a guide to draw up a community profile and community engagement plan (CEP) to assist with profiling and consultation processes.
N/A N/A 2 3 9 (M)
2.2 ECONOMIC SECTOR
2.21 Downscaling of mine-related and mine-dependent businesses
Dependency of businesses and medical aids (local doctors) on the mine resulting in a risk of closing down these businesses and therefore having a negative impact on the economic sector of the local area (These also include small scale gardening services companies many of whom are doing work for the company).
N/A N/A 5 4 23 (H)
According to the Social and Labour Plan of 2013: Enterprise development is viewed by the mine as a vital poverty eradication and job creation mechanism beyond the operation of the mine. A Small Business Development Hub was created by the company and is a private company which is aimed at supporting enterprise development in the host and labour sending areas.
Additional assessments: Investigate the sustainability of agreements and contributions on small businesses which are dependant on the mine.
N/A N/A 4 4 21 (H)
65ANGLO AMERICAN MINE CLOSURE TOOLBOX
DIRECT IMPACTS ON SOCIO-ECONOMIC ASPECTS AT CLOSURE
RISK ISSUES FOR SOCIO-ECONOMIC ASPECTS AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
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Ran
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Pro
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Con
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Ran
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Pro
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Con
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Ran
king
1. EMPLOYEES
1.1
Loss and security of income
The expectations of ex-employees, seeking further compensation or reimbursement after retrenchment due to the lack of finding alternative employment, resulting in financial, legal and reputational risks for the company, after closure.
4 2 12 (M) 3 3 13 (S) 4 4 21 (H)
According to the Social and Labour Plan of 2013: The company in conjunction with other stakeholders, through the Process to Manage Downscaling and Retrenchments, shall undertake to provide skills training opportunities to employees during their employment in order to improve their income earning capacity in the event of downscaling or retrenchment processes. The skills programme will be implemented before mine closure to provide sufficient time to re-skill the employees.
The following mitigation measures are in place:i. Retrenchment packages for mine employees;ii. Portable skills training; andiii. Facilitation of opportunities for re-employment
Additional assessments:i. The implementation of a process to facilitate home ownership scheme for employees during their current
tenure of employment in order to mitigate their need for housing after mine closure; ii. A model needs to be developed to cost the steps necessary to reduce socio-economic risks associated
with employees and internal contractors; iii. Timeously agreements and engagement with employees upon retrenchments can limit actions in which
employees may engage and which could be to the detriment of the company (the establishment of future forums and reaching of agreements);
iv. Mitigation measures of the mine are revised every 5 years when the Social and Labour Plan (SLP) is updated.
3 2 8 (M) 2 1 2 (L) 3 3 13 (S)
1.2
The loss of salary and benefits for the mine employees, such as medical aid, housing and water & electricity allowances, which could relate to a situation where company employees might expect the company to give them preference when it comes to the sale of company properties around town (e.g. houses) and also can expect to buy them at below market rate.
3 2 8 (M) 3 3 13 (S) 3 3 13 (S) 2 2 5 (L) 2 1 2 (L) 2 3 9 (M)
2. 1 INTERESTED & AFFECTED PARTIES INTERESTED & AFFECTED PARTIES
2.1 SOCIO-PSHYCOLOGICAL
2.1.1 • Increased community and individual deprivation, fatalism and negativity;
• Increase in community isolation and the extent to which the community feels trapped in its circumstances;
• Possible collapse of social organisations initiated by the mine;
• Decline in the general quality of life
An increase in the nature and extent to which people experience a sense of loss of community identity and cohesion in an urban area, which could lead to a need for increased counselling and psychological support of ex mine employees. This could result in a situation whereby local business, churches, etc. might expect the company to support them after mine closure. N/A N/A 3 3 13 (S)
The company in conjunction with other stakeholders, through the Process to Manage Downscaling and Retrenchments, shall undertake to provide counselling and psychological support to employees during the retrenchment process in order to prepare employees for life after the closure of the mine (EAP process - Employee Assessment Processes include life skills etc).
The mine will forge necessary partnerships with organisations to ensure that sustainability to initiatives and projects is created post mine closure; The idea here is to encourage organisations to take over the ownership of projects once they are initiated and this might bring some cohesion and structure back to the community; and This might also improve their quality of life and bring positivity in the community if social organisations which were initiated can grow.
Additional assessments: The SEAT process of the AAplc Mine Closure toolbox can be used as a guide to draw up a community profile and community engagement plan (CEP) to assist with profiling and consultation processes.
N/A N/A 2 3 9 (M)
2.2 ECONOMIC SECTOR
2.21 Downscaling of mine-related and mine-dependent businesses
Dependency of businesses and medical aids (local doctors) on the mine resulting in a risk of closing down these businesses and therefore having a negative impact on the economic sector of the local area (These also include small scale gardening services companies many of whom are doing work for the company).
N/A N/A 5 4 23 (H)
According to the Social and Labour Plan of 2013: Enterprise development is viewed by the mine as a vital poverty eradication and job creation mechanism beyond the operation of the mine. A Small Business Development Hub was created by the company and is a private company which is aimed at supporting enterprise development in the host and labour sending areas.
Additional assessments: Investigate the sustainability of agreements and contributions on small businesses which are dependant on the mine.
N/A N/A 4 4 21 (H)
66 ANGLO AMERICAN MINE CLOSURE TOOLBOX
DIRECT IMPACTS ON SOCIO-ECONOMIC ASPECTS AT CLOSURE
RISK ISSUES FOR SOCIO-ECONOMIC ASPECTS AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
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Con
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Ran
king
2.2.2 • Decrease in local and district municipal revenue;
• Services agreements (formal & informal) with the company will fall away. Company no longer assisting the municipality through free consultation, using of equipment and rendering of services;
• Decreased contributions to educational institutions and social programmes by the company
The local town has more superior infrastructure and more available housing, compared to other towns, due to the positive influence of the mine. Municipal infrastructure is upgraded and developments is taking place in the local town through the Social and Labour Plan (SLP), e.g. Electrification for some town extensions. The risk is the possible degradation of the abovementioned in the local town after mine closure and the possible loss in revenue (rates and taxes).
N/A N/A 4 2 12 (M)
According to the Social and Labour Plan of 2013: Enterprise development is viewed by the mine as a vital poverty eradication and job creation mechanism beyond the operation of the mine. A Small Business Development Hub was created by the mine and is a private company which is aimed at supporting enterprise development in the host and labour sending areas as well as creating small businesses.
Guided by the current legislation and aligned with the Central Retrenchment Agreement, the company will enter into an agreement with relevant union(s) on the management of retrenchments and downscaling at the mine. The parties will agree on the following overarching principles in order to:- prevent job losses and a decline in employment through turnaround or redeployment strategies, and to seek
alternative solutions to threats to job security and potential measures to prevent a decline in employment;- promote a new culture of self-employment and self-maintenance, aimed at improving access to
employment opportunities;- seek to improve the quality of life of all retrenched employees and the affected communities;- promote possible alternative job creation projects.
A working relationship is established and housing is assumed to be sold to 3rd parties. The subvention programme is assisting schools to be able to sustain themselves.
Additional assessments: The mine will forge necessary partnerships with government departments to ensure that sustainability to these projects is created post mine closure. The idea here is to encourage government departments to take over the ownership of some of these projects once they are initiated.
N/A N/A 3 2 8 (M)
2.2.3 The mine is contributing towards social development, such as upgrading of schools through the Rural Schools Programme and the Teacher Subvention Programme and support of small community projects. The risk is the possible decreasing of the abovementioned contributions and developments in the local town after mine closure.
N/A N/A 4 4 21 (H) N/A N/A 3 4 18 (S)
2.2.4 Consultation with I&APs Uncertainty of liabilities, mitigation and post-closure aftercare in the event that consultation, engagement and agreements with I&APs (including National Park) are not following the correct legal procedures.
4 2 12 (M) 4 4 21 (H) 4 4 21 (H)
Additional assessments:i. Active engagement and on-going consultation with I&AP’s, including the National Park, are important to
ensure that the liabilities are clear at closure as well as post-closure. Agreements should be put in writing;ii. Memorandum of understanding;iii. Compile a Community and Stakeholder Engagement plan;iv. Do a due diligence on current legal procedure
2 2 5 (L) 2 4 14 (S) 2 2 5 (L)
2.2.5 The stature of the company may result in unrealistic expectations from stakeholders post closure.
3 4 18 (S) 2 1 2 (L) 3 4 18 (S)
The impacts of closure will be mitigated through LoM. The SLP will cover community projects and identify needs.
Additional assessments: The mine must establish realistic criteria, before consultation. Proper stakeholder engagement, planning and management of publicity and perceptions of I&APs are very important.
3 2 8 (M) 2 3 9 (M) 3 2 8 (M)
2.3 PUBLIC SECTOR
2.3.1 • Services agreements (formal & informal) with the company will fall away. • Decreased contributions to educational institutions and social programmes by the company
The mine is contributing to local municipality, schools, hospitals and community organisations. The risk is the loss of both resource support, e.g. local hospital where some professionals sit in the Board of Directors and help with management issues, and financial benefits, e.g., with schools, community organisations and the local municipality currently benefitting financially from the mine.
N/A N/A 5 4 23 (H)
Through the Local Economic Development (LED) Forums timeously engage with all stakeholders and familiarise them with the the company’s funding models as well as the company’s policies around community development. Also share information around the Social and Labour Plan’s commitments.
Additional assessments:i. Develop a strategy to influence the LEDs and IDPs of the areas to be involved and to be able to take over
some responsibilities or management measures from the mine (refine comprehensive exit strategy);ii. Determine the sustainability of these initiatives, contributions and agreements.
N/A N/A 3 3 13 (S)
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
67ANGLO AMERICAN MINE CLOSURE TOOLBOX
DIRECT IMPACTS ON SOCIO-ECONOMIC ASPECTS AT CLOSURE
RISK ISSUES FOR SOCIO-ECONOMIC ASPECTS AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
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Con
sequ
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Ran
king
2.2.2 • Decrease in local and district municipal revenue;
• Services agreements (formal & informal) with the company will fall away. Company no longer assisting the municipality through free consultation, using of equipment and rendering of services;
• Decreased contributions to educational institutions and social programmes by the company
The local town has more superior infrastructure and more available housing, compared to other towns, due to the positive influence of the mine. Municipal infrastructure is upgraded and developments is taking place in the local town through the Social and Labour Plan (SLP), e.g. Electrification for some town extensions. The risk is the possible degradation of the abovementioned in the local town after mine closure and the possible loss in revenue (rates and taxes).
N/A N/A 4 2 12 (M)
According to the Social and Labour Plan of 2013: Enterprise development is viewed by the mine as a vital poverty eradication and job creation mechanism beyond the operation of the mine. A Small Business Development Hub was created by the mine and is a private company which is aimed at supporting enterprise development in the host and labour sending areas as well as creating small businesses.
Guided by the current legislation and aligned with the Central Retrenchment Agreement, the company will enter into an agreement with relevant union(s) on the management of retrenchments and downscaling at the mine. The parties will agree on the following overarching principles in order to:- prevent job losses and a decline in employment through turnaround or redeployment strategies, and to seek
alternative solutions to threats to job security and potential measures to prevent a decline in employment;- promote a new culture of self-employment and self-maintenance, aimed at improving access to
employment opportunities;- seek to improve the quality of life of all retrenched employees and the affected communities;- promote possible alternative job creation projects.
A working relationship is established and housing is assumed to be sold to 3rd parties. The subvention programme is assisting schools to be able to sustain themselves.
Additional assessments: The mine will forge necessary partnerships with government departments to ensure that sustainability to these projects is created post mine closure. The idea here is to encourage government departments to take over the ownership of some of these projects once they are initiated.
N/A N/A 3 2 8 (M)
2.2.3 The mine is contributing towards social development, such as upgrading of schools through the Rural Schools Programme and the Teacher Subvention Programme and support of small community projects. The risk is the possible decreasing of the abovementioned contributions and developments in the local town after mine closure.
N/A N/A 4 4 21 (H) N/A N/A 3 4 18 (S)
2.2.4 Consultation with I&APs Uncertainty of liabilities, mitigation and post-closure aftercare in the event that consultation, engagement and agreements with I&APs (including National Park) are not following the correct legal procedures.
4 2 12 (M) 4 4 21 (H) 4 4 21 (H)
Additional assessments:i. Active engagement and on-going consultation with I&AP’s, including the National Park, are important to
ensure that the liabilities are clear at closure as well as post-closure. Agreements should be put in writing;ii. Memorandum of understanding;iii. Compile a Community and Stakeholder Engagement plan;iv. Do a due diligence on current legal procedure
2 2 5 (L) 2 4 14 (S) 2 2 5 (L)
2.2.5 The stature of the company may result in unrealistic expectations from stakeholders post closure.
3 4 18 (S) 2 1 2 (L) 3 4 18 (S)
The impacts of closure will be mitigated through LoM. The SLP will cover community projects and identify needs.
Additional assessments: The mine must establish realistic criteria, before consultation. Proper stakeholder engagement, planning and management of publicity and perceptions of I&APs are very important.
3 2 8 (M) 2 3 9 (M) 3 2 8 (M)
2.3 PUBLIC SECTOR
2.3.1 • Services agreements (formal & informal) with the company will fall away. • Decreased contributions to educational institutions and social programmes by the company
The mine is contributing to local municipality, schools, hospitals and community organisations. The risk is the loss of both resource support, e.g. local hospital where some professionals sit in the Board of Directors and help with management issues, and financial benefits, e.g., with schools, community organisations and the local municipality currently benefitting financially from the mine.
N/A N/A 5 4 23 (H)
Through the Local Economic Development (LED) Forums timeously engage with all stakeholders and familiarise them with the the company’s funding models as well as the company’s policies around community development. Also share information around the Social and Labour Plan’s commitments.
Additional assessments:i. Develop a strategy to influence the LEDs and IDPs of the areas to be involved and to be able to take over
some responsibilities or management measures from the mine (refine comprehensive exit strategy);ii. Determine the sustainability of these initiatives, contributions and agreements.
N/A N/A 3 3 13 (S)
68 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
DIRECT IMPACTS ON SOCIO-ECONOMIC ASPECTS AT CLOSURE
RISK ISSUES FOR SOCIO-ECONOMIC ASPECTS AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
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Con
sequ
ence
Ran
king
2.4 LAND USE & INFRASTRUCTURE
2.4.1 The end land use and utilisation of infrastructure after closure
One of the three main clusters of land claims is located on and around the mine. There may be a risk that the future land use will be influenced by the outcome of the claims.
3 3 13 (S) 3 3 13 (S) 3 4 18 (S)
Additional assessments: Proper stakeholder engagement, including consultation with the following interested parties: land claimants, Provincial & National Government. Agreements should be put in writing.
2 3 9 (M) 2 23 9 (M) 2 4 14 (S)
2.4.2 Certain mine infrastructure (offices and buildings) which will be demolished according to the current closure criteria, could be utilised by the I&APs and might add value to the post-closure land use. There might be a risk of expectation of continuing involvement.
3 2 8 (M) 3 2 8 (M) 3 4 18 (S)
Additional assessments:i. Link the properties to the final end land use;ii. This option needs to be investigated, negotiated and marketed to potential future users. Put agreement in
writing (e.g. lease of buildings)2 2 5 (L) 2 2 5 (L) 3 3 13 (S)
2.4.3 The threat of liabilities reverting back to the company should the end land user not do proper maintenance/ management to structures (decay and deterioration).
3 2 8 (M) 3 2 8 (M) 3 4 18 (S)
Additional assessments:i. All the conditions of transfer of land and structures to a 3rd party must ensure that the risks of
abandonment and future sustainability vest with the new owner/end land user. The new owners/end land users must have the knowledge to manage a rehabilitated mining area. The new owner/end land users must be able to manage the environmental and social responsibilities adequately;
ii. Include in Social closure plan
2 2 5 (L) 2 2 5 (L) 3 3 13 (S)
2.4.4 • Recreational facilities in the local town will no longer be maintained by the company after closure;
• Possible decrease in property value (including housing in the local town);
• Vacancy of properties (including housing in Musina)
The lack of responsibility and maintenance of the guesthouse, club, housing and properties in the local town, resulting in the decaying of buildings and vandalising of unoccupied properties (if still owned). 3 4 18 (S) N/A 3 3 13 (S)
Additional assessments: Finalise the assets register as well as strategies for disposal of existing infrastructure / assets (which may become redundant during LoM). Dispose of these facilities already during LoM, if possible and do not leave until closure. 1 1 1 (L) N/A 1 1 1 (L)
3. AUTHORITIES
3.1 Consultation with authorities The risk that the closure needs and requirements of all the authorities have not been tested through consultation, other than through the Environmental Management Programme processes, resulting in incorrect closure criteria and rehabilitation measures.
N/A 3 4 18 (S) 3 3 13 (S)
Additional assessments: Proper stakeholder engagement, including consultation with the following main authorities: Department of Mineral Resources (mine economics, permitting, safety), Department of Water Affairs, Parks Board, Department of Environment and Tourism, Department of Agriculture and the Heritage Depoartment. Agreements should be put in writing.
N/A 2 4 14 (S) 2 3 9 (M)
69ANGLO AMERICAN MINE CLOSURE TOOLBOX
DIRECT IMPACTS ON SOCIO-ECONOMIC ASPECTS AT CLOSURE
RISK ISSUES FOR SOCIO-ECONOMIC ASPECTS AT CLOSURE
PRE-MITIGATION MITIGATION/CLOSURE CRITERIA POST-MITIGATION
FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY FINANCIALLEGAL &
REGULATORY
REPUTATION/ SOCIAL /
COMMUNITY
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
Pro
babi
lity
Con
sequ
ence
Ran
king
2.4 LAND USE & INFRASTRUCTURE
2.4.1 The end land use and utilisation of infrastructure after closure
One of the three main clusters of land claims is located on and around the mine. There may be a risk that the future land use will be influenced by the outcome of the claims.
3 3 13 (S) 3 3 13 (S) 3 4 18 (S)
Additional assessments: Proper stakeholder engagement, including consultation with the following interested parties: land claimants, Provincial & National Government. Agreements should be put in writing.
2 3 9 (M) 2 23 9 (M) 2 4 14 (S)
2.4.2 Certain mine infrastructure (offices and buildings) which will be demolished according to the current closure criteria, could be utilised by the I&APs and might add value to the post-closure land use. There might be a risk of expectation of continuing involvement.
3 2 8 (M) 3 2 8 (M) 3 4 18 (S)
Additional assessments:i. Link the properties to the final end land use;ii. This option needs to be investigated, negotiated and marketed to potential future users. Put agreement in
writing (e.g. lease of buildings)2 2 5 (L) 2 2 5 (L) 3 3 13 (S)
2.4.3 The threat of liabilities reverting back to the company should the end land user not do proper maintenance/ management to structures (decay and deterioration).
3 2 8 (M) 3 2 8 (M) 3 4 18 (S)
Additional assessments:i. All the conditions of transfer of land and structures to a 3rd party must ensure that the risks of
abandonment and future sustainability vest with the new owner/end land user. The new owners/end land users must have the knowledge to manage a rehabilitated mining area. The new owner/end land users must be able to manage the environmental and social responsibilities adequately;
ii. Include in Social closure plan
2 2 5 (L) 2 2 5 (L) 3 3 13 (S)
2.4.4 • Recreational facilities in the local town will no longer be maintained by the company after closure;
• Possible decrease in property value (including housing in the local town);
• Vacancy of properties (including housing in Musina)
The lack of responsibility and maintenance of the guesthouse, club, housing and properties in the local town, resulting in the decaying of buildings and vandalising of unoccupied properties (if still owned). 3 4 18 (S) N/A 3 3 13 (S)
Additional assessments: Finalise the assets register as well as strategies for disposal of existing infrastructure / assets (which may become redundant during LoM). Dispose of these facilities already during LoM, if possible and do not leave until closure. 1 1 1 (L) N/A 1 1 1 (L)
3. AUTHORITIES
3.1 Consultation with authorities The risk that the closure needs and requirements of all the authorities have not been tested through consultation, other than through the Environmental Management Programme processes, resulting in incorrect closure criteria and rehabilitation measures.
N/A 3 4 18 (S) 3 3 13 (S)
Additional assessments: Proper stakeholder engagement, including consultation with the following main authorities: Department of Mineral Resources (mine economics, permitting, safety), Department of Water Affairs, Parks Board, Department of Environment and Tourism, Department of Agriculture and the Heritage Depoartment. Agreements should be put in writing.
N/A 2 4 14 (S) 2 3 9 (M)
70 ANGLO AMERICAN MINE CLOSURE TOOLBOX
EXAMPLE OF A COMPLETED MINE CLOSURE RISK ASSESSMENT CONTINUED
PROJECTS RISK MATRIX CONSEQUENCE (Where an event has more than one ‘Consequence Type’, choose the ‘Consequence Type’ with the highest rating)
Consequence Type 1 - Insignificant 2 - Minor 3 - Moderate 4 - High 5 - Major
Schedule Less than 1% impact on overall project timeline
May result in overall project timeline overrun equal to or more than 1% and less than 3%
May result in overall project timeline overrun of equal to or more than 3% and less than 10%
May result in overall project timeline overrun of equal to or more than 10% and less than 30%
May result in overall project timeline overrun of 30% or more
Cost Less than 1% impact on the overall budget of the project
May result in overall project budget overrun equal to or more than 1% and less than 3%
May result in overall project budget overrun of equal to or more than 3% and less than 10%
May result in overall project budget overrun of equal to or more than 10% and less than 30%
May result in overall project budget overrun of 30% or more
Quality and Technical Integrity No significant impact on quality of deliverables or effect on production
Quality issues that can be addressed prior to handover or could affect production by more than 1% and less than 3%
Quality issues that can be addressed during ramp-up or could affect production by more than 3% and less than 10%
Quality issues that require significant intervention to maintain performance or could affect production by more than 10% and less than 30%
Quality issues that require significant intervention to achieve performance or could affect production by 30% or more
Safety First aid case Medical treatment case Lost time injury Permanent disability or single fatality Numerous permanent disabilities or multiple fatalities
Occupational Health Exposure to health hazard resulting in temporary discomfort
Exposure to health hazard resulting in symptoms requiring medical intervention and full recovery (no lost time)
Exposure to health hazards/ agents (over the OEL) resulting in reversible impact on health (with lost time) or permanent change with no disability or loss of quality of life
Exposure to health hazards/ agents (significantly over the OEL) resulting in irreversible impact on health with loss of quality of life or single fatality
Exposure to health hazards/ agents (significantly over the OEL) resulting in irreversible impact on health with loss of quality of life of a numerous group/population or multiple fatalities
Environment Lasting days or less; affecting small area (metres); receiving environment highly altered with no sensitive habitats and no biodiversity value (e.g. urban / industrial areas).
Lasting weeks; affecting limited area (hundreds of metres); receiving environment altered with little natural habitat and low biodiversity value
Lasting months; affected extended area (kilometres); receiving environment comprising largely natural habitat and moderate biodiversity value
Lasting years; affecting area on sub-basin scale; receiving environment classified as having sensitive natural habitat with high biodiversity value
Permanent impact; affecting area on a whole basin or regional scale; receiving environment classified as highly sensitive natural habitat with very high biodiversity value
Legal & Regulatory Technical non-compliance. No warning received; no regulatory reporting required
Breach of regulatory requirements; report/involvement of authority. Attracts administrative fine
Minor breach of law; report/investigation by authority. Attracts compensation/ penalties/ enforcement action
Breach of the law; may attract criminal prosecution, penalties/ enforcement action. Individual licence temporarily revoked
Significant breach of the law. Individual or company law suits; permit to operate substantially modified or withdrawn
Social / Communities Minor disturbance of culture/ social structures
Some impacts on local population, mostly repairable. Single stakeholder complaint in reporting period
On going social issues. Isolated complaints from community members/ stakeholders
Significant social impacts. Organized community protests threatening continuity of operations
Major widespread social impacts. Community reaction affecting business continuity. “License to operate” under jeopardy
Reputation Minor impact; awareness/ concern from specific individuals
Limited impact; concern/ complaints from certain groups/ organizations (e.g. NGOs) period
Local impact; public concern/ adverse publicity localised within neighbouring communities
Suspected reputational damage; local/ regional public concern and reactions
Noticeable reputational damage; national/ international public attention and repercussions
PROBABILITY RISK LEVEL
5 - Almost Certain >90%
90% and higher likelihood of occurring
11 (Medium)
16 (Significant)
20 (Significant)
23 (High)
25 (High)
4 - Likely 30%-90%
Between 30% and less than 90% likelihood of occurring
7 (Medium)
12 (Medium)
17 (Significant)
21 (High)
24 (High)
3 - Possible 10%-30%
Between 10% and less than 30% likelihood of occurring
4 (Low)
8 (Medium)
13 (Significant)
18 (Significant)
22 (High)
2 - Unlikely 3%-10%
Between 3% and less than 10% likelihood of occurring
2 (Low)
5 (Low)
9 (Medium)
14 (Significant)
19 (Significant)
1 - Rare <3%
Less than 3% likelihood of occurring
1 (Low)
3 (Low)
6 (Medium)
10 (Medium)
15 (Significant)
RISK RATING RISK LEVEL GUIDELINES FOR RISK MATRIX
21 to 25 High A high risk exists that management’s objectives may not be achieved. Appropriate mitigation strategy to be devised immediately.
13 to 20 Significant A significant risk exists that management’s objectives may not be achieved. Appropriate mitigation strategy to be devised as soon as possible.
6 to 12 Medium A moderate risk exists that management’s objectives may not be achieved. Appropriate mitigation strategy to be devised as part of the normal management process.
1 to 5 Low A low risk exists that management’s objectives may not be achieved. Monitor risk, no further mitigation required.
71ANGLO AMERICAN MINE CLOSURE TOOLBOX
PROJECTS RISK MATRIX CONSEQUENCE (Where an event has more than one ‘Consequence Type’, choose the ‘Consequence Type’ with the highest rating)
Consequence Type 1 - Insignificant 2 - Minor 3 - Moderate 4 - High 5 - Major
Schedule Less than 1% impact on overall project timeline
May result in overall project timeline overrun equal to or more than 1% and less than 3%
May result in overall project timeline overrun of equal to or more than 3% and less than 10%
May result in overall project timeline overrun of equal to or more than 10% and less than 30%
May result in overall project timeline overrun of 30% or more
Cost Less than 1% impact on the overall budget of the project
May result in overall project budget overrun equal to or more than 1% and less than 3%
May result in overall project budget overrun of equal to or more than 3% and less than 10%
May result in overall project budget overrun of equal to or more than 10% and less than 30%
May result in overall project budget overrun of 30% or more
Quality and Technical Integrity No significant impact on quality of deliverables or effect on production
Quality issues that can be addressed prior to handover or could affect production by more than 1% and less than 3%
Quality issues that can be addressed during ramp-up or could affect production by more than 3% and less than 10%
Quality issues that require significant intervention to maintain performance or could affect production by more than 10% and less than 30%
Quality issues that require significant intervention to achieve performance or could affect production by 30% or more
Safety First aid case Medical treatment case Lost time injury Permanent disability or single fatality Numerous permanent disabilities or multiple fatalities
Occupational Health Exposure to health hazard resulting in temporary discomfort
Exposure to health hazard resulting in symptoms requiring medical intervention and full recovery (no lost time)
Exposure to health hazards/ agents (over the OEL) resulting in reversible impact on health (with lost time) or permanent change with no disability or loss of quality of life
Exposure to health hazards/ agents (significantly over the OEL) resulting in irreversible impact on health with loss of quality of life or single fatality
Exposure to health hazards/ agents (significantly over the OEL) resulting in irreversible impact on health with loss of quality of life of a numerous group/population or multiple fatalities
Environment Lasting days or less; affecting small area (metres); receiving environment highly altered with no sensitive habitats and no biodiversity value (e.g. urban / industrial areas).
Lasting weeks; affecting limited area (hundreds of metres); receiving environment altered with little natural habitat and low biodiversity value
Lasting months; affected extended area (kilometres); receiving environment comprising largely natural habitat and moderate biodiversity value
Lasting years; affecting area on sub-basin scale; receiving environment classified as having sensitive natural habitat with high biodiversity value
Permanent impact; affecting area on a whole basin or regional scale; receiving environment classified as highly sensitive natural habitat with very high biodiversity value
Legal & Regulatory Technical non-compliance. No warning received; no regulatory reporting required
Breach of regulatory requirements; report/involvement of authority. Attracts administrative fine
Minor breach of law; report/investigation by authority. Attracts compensation/ penalties/ enforcement action
Breach of the law; may attract criminal prosecution, penalties/ enforcement action. Individual licence temporarily revoked
Significant breach of the law. Individual or company law suits; permit to operate substantially modified or withdrawn
Social / Communities Minor disturbance of culture/ social structures
Some impacts on local population, mostly repairable. Single stakeholder complaint in reporting period
On going social issues. Isolated complaints from community members/ stakeholders
Significant social impacts. Organized community protests threatening continuity of operations
Major widespread social impacts. Community reaction affecting business continuity. “License to operate” under jeopardy
Reputation Minor impact; awareness/ concern from specific individuals
Limited impact; concern/ complaints from certain groups/ organizations (e.g. NGOs) period
Local impact; public concern/ adverse publicity localised within neighbouring communities
Suspected reputational damage; local/ regional public concern and reactions
Noticeable reputational damage; national/ international public attention and repercussions
PROBABILITY RISK LEVEL
5 - Almost Certain >90%
90% and higher likelihood of occurring
11 (Medium)
16 (Significant)
20 (Significant)
23 (High)
25 (High)
4 - Likely 30%-90%
Between 30% and less than 90% likelihood of occurring
7 (Medium)
12 (Medium)
17 (Significant)
21 (High)
24 (High)
3 - Possible 10%-30%
Between 10% and less than 30% likelihood of occurring
4 (Low)
8 (Medium)
13 (Significant)
18 (Significant)
22 (High)
2 - Unlikely 3%-10%
Between 3% and less than 10% likelihood of occurring
2 (Low)
5 (Low)
9 (Medium)
14 (Significant)
19 (Significant)
1 - Rare <3%
Less than 3% likelihood of occurring
1 (Low)
3 (Low)
6 (Medium)
10 (Medium)
15 (Significant)
RISK RATING RISK LEVEL GUIDELINES FOR RISK MATRIX
21 to 25 High A high risk exists that management’s objectives may not be achieved. Appropriate mitigation strategy to be devised immediately.
13 to 20 Significant A significant risk exists that management’s objectives may not be achieved. Appropriate mitigation strategy to be devised as soon as possible.
6 to 12 Medium A moderate risk exists that management’s objectives may not be achieved. Appropriate mitigation strategy to be devised as part of the normal management process.
1 to 5 Low A low risk exists that management’s objectives may not be achieved. Monitor risk, no further mitigation required.
72 ANGLO AMERICAN MINE CLOSURE TOOLBOX
NOTES
© ANGLO OPERATIONS PROPRIETARY LIMITED 2013
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