Ballymurtagh Landfill Tinnahinch Co. Wicklow Waste Licence: … · 2017. 2. 7. · SWD6: This monitoring location is a pipe discharge of water run-off from the Recycling Centre located

Ballymurtagh Landfill

Tinnahinch

Co. Wicklow

Waste Licence: W0011-02

2nd Quarter 2016 Monitoring Report

(Water)

Report Compiled by: Wicklow County Council

August 2016

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Executive Summary:

This report covers the compliance monitoring for Ballymurtagh Landfill, Avoca, Co. Wicklow, which is

licensed by the Environmental Protection Agency under Waste Licence W0011-02. The monitoring

period is for the second quarter of 2016, which includes April, May and June.

The monitoring programme includes Water (i.e. Surface, Ground & Leachate).An independent

company – T.E. Labs, carried out all water sampling.

During this sampling period there were no exceedances recorded at any of the surface water

monitoring locations.

Groundwater monitoring locations in the area are in general contaminated with acid mine drainage

from the previous workings of the Avoca mines. Low pH along with high conductivity and metals are

indicative of contamination by the historical mining operations.

Monitoring of drinking water supplies in homes in the proximity of the facility show pH levels that are

lower than the recommended levels for drinking water.

Landfill leachate monitoring shows a chemical composition similar to that expected for waste of the

age of that placed at Ballymurtagh.

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1 Introduction This report details environmental water monitoring at Ballymurtagh Landfill, County Wicklow for the

second quarter of 2016 (i.e. April, May and June).

T.E. Labs monitor surface water, groundwater and leachate.

In compliance with Condition 6 of Waste Licence W0011-02, Wicklow County Council is required to

carry out environmental monitoring at Ballymurtagh Landfill at such locations and frequencies as set

out in Schedule C: Control & Monitoring of the licence. Schedule C.5 details the requirements for the

monitoring of receiving water, Schedule C.4 details the requirements of groundwater monitoring and

C.3 the leachate monitoring.

Quarterly reports are submitted in line with the requirements set out in the licence.

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2 Compliance Monitoring For Quarter 2 2016

Period Covered: April through June 2016

2.1 SURFACE WATER QUALITY

The surface water-monitoring programme includes six monitoring locations SW1 – SW6, as specified

in the Waste Licence. Surface water analysis at Ballymurtagh primarily monitors the quality of the

Avoca River as it passes adjacent to the Ballymurtagh site.

The results are compared with European Community (Quality of Surface Water intended for

Abstraction for Drinking Water) Regulations, 1989 (SI. No. 294 of 1989) and the EPA’s Environmental

Quality Objectives and Environmental Quality Standards (2003). Interpretation of the results is

complicated by the fact that the Avoca mine adits, Ballygahan adit and Ballymurtagh road adit, which

are used as surface water quality monitoring points SW2 and SW3 respectively, and are carrying acid

mine drainage.

Table 2.1: Surface Water Monitoring Locations.

Monitoring Point Location

SW1 Upstream of Landfill site at area known as “White Bridge”

SW2 In line with main entrance to Landfill/ Recycling Centre. Ballygahan Adit.

SW4 Immediately down stream of Landfill.

SW5 Avoca Bridge

SW6 Surface Water run-off from Civic Waste Facility.

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Analysis and Interpretation

SW1: This monitoring location is located upstream of the landfill site at an area known locally as “The

White Bridge”. The latest analysis shows that this location is within all Trigger limits/ Standards and

licence limits.

Parameter (mg/l) unless

stated

Analysis Results Standards

NH4 <0.08 0.2

BOD 7 5

Chloride 8 250

COD 24 40

Conductivity 61 1000 us/cm

Dissolved Oxygen 88 No Abnormal Change

Odour odourless –

pH 7.1 5.5 – 8.5

Suspended Solids <1 30

Temperature 14 25 OC

SW2: This monitoring location is located in line with the main entrance to the main entrance to the

recycling facility and is influenced by the Ballygahan adit discharge. The latest analysis shows that

this location is within all Trigger limits/ Standards and licence limits.


stated


NH4 <0.08 0.2

BOD <3 5

Chloride 8 250

COD 17 40



pH 7.0 5.5 – 8.5

Odour Odourless -



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SW4: This monitoring location is immediately downstream of the landfill in line with what is known

locally as “Sharpes Yard”. This point is also downstream of the Ballymurtagh “Road” adit which

contains acid mine drainage from the Avoca Mines. The latest analysis shows that this location is

within all Trigger limits/ Standards and licence limits.


stated


NH4 <0.08 0.2

BOD <3 5

Chloride 8 250

COD 16 40



pH 6.7 5.5 – 8.5

Odour Odourless -

Suspended Solids 5 30


SW5: This monitoring location is located approx 1km downstream of the landfill at Avoca Bridge. The

latest analysis shows that this location is within all Trigger limits/ Standards and licence limits.


stated


NH4 <0.08 0.2

BOD <3 5

Chloride 8 250

COD 15 40



pH 7.3 5.5 – 8.5

Odour Odourless -



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SWD6: This monitoring location is a pipe discharge of water run-off from the Recycling Centre located

at Ballymurtagh. Under Schedule C.2.2 of the licence this point is monitored for Suspended Solids

during the quarterly monitoring programme.


stated


Suspended Solids Reported Dry 30

The surface water quality at the upstream monitoring points SW1 and SW2 and the downstream

monitoring points, SW4 and SW5 are of good quality. A slightly raised BOD level of 7mg/l was

recorded upstream of the landfill, the trigger level is 5mg/l. There was no discharge from the recycling

area during this monitoring.

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Groundwater Quality

The groundwater-monitoring programme includes monitoring wells:

Twin Shafts

G1/04

G1/05

G2/05

RC6

SW3 (Ballymurtagh Road Adit)

And the following homes:

Eddie Colemen

Jeff Green

Donal Leary

Mary Merrigan

2.2.1 Groundwater Standards

The groundwater results recorded during the investigation period have been compared with trigger

levels set for various parameters at the facility under condition 6.4.2 of the waste licence. Where limits

are not set, EC directives or National Regulations for the Aquatic Environmental and for drinking

water are used in comparing groundwater results. These standards provide guidelines and a

Maximum Admissible Concentration (MAC) permitted for each of the drinking water parameters, the

regulations used are listed below.

EPA interim Guideline Values for Groundwater

EC Groundwater Directive (80/68/EEC)

European Communities Council Directive 98/83/EC. This directive was originally transposed

into Irish Law by the EC (Drinking Water) Regulations SI439 of 2000. These regulations were

replaced by SI 106 of 2007 which were later revoked by the EC (Drinking Water) regulations

SI 278 of 2007 with immediate effect. These regulations outline indicator parametric values

for drinking water.

EC Groundwater Directive, which is a “daughter” Directive of the EC Dangerous Substances

Directive (76/160/EC).

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2.2.2 Analysis and Interpretation

Twin Shafts: This well is outside the facility at a distance of approx. 30 m in a northwest direction

and is considered upstream of the landfill.


stated


Ammoniacal Nitrogen <0.08 0.15

Chloride 17 30

Conductivity(uS/cm @ 20oC)

295 1000

Dissolved Oxygen % 79 No abnormal change

Groundwater Level (m) +30 -

Odour odourless -

pH 6.8 6.5 – 8.5

Potassium 5 (note 1) 0.5 micrograms

Sodium 6 (note 1)

Sulphate 79 150

TOC 1.8 200

Total Phenols by

Colourimetry <0.05

Visual slightly turbid, few suspended solids

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G1/04: This deep well is located approx. 100 meters to the east of the landfill. The well is acidic and

contains very high levels of sulphate which reflects the mine drainage contamination.


stated


Ammoniacal Nitrogen 0.18 0.15

Chloride 35 30

Conductivity(uS/cm @ 20oC) 7500 1000


Groundwater Level (m) 25 -

Odour odourless -

pH 3.1 6.5 – 8.5

Potassium <1 (note 1) 0.5 micrograms

Sodium 7 (note 1)

Sulphate 9364 150

TOC 6.2 200

Total Phenols by

Colourimetry <0.05

Visual turbid, few suspended solids

Note 1 LOD raised due to sample matrix interference

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RC6: This deep well is located approx. 100 meters to the east of the landfill and is close to G1/04

above.

During this round of monitoring this well was dry.

GW1/05: This groundwater well is located almost directly across the road from the main entrance to

the Ballymurtagh Civic Amenity main entrance. It is one of two wells (also GW2/05) that have been

installed at the request of the agency. The difference between both wells was the depth drilled to (i.e.

GW1/05 is deep, GW2/05 is shallow). This well is indicative of mine contamination with low pH, high

conductivity and high sulphate.


stated



Chloride 14 30



Groundwater Level (m) 4.97 -

Odour odourless -

pH 3.8 6.5 – 8.5


Sodium 10 (note 1)

Sulphate 1127 150

TOC 1.4 200

Total Phenols by

Colourimetry <0.05

Visual clear

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GW2/05: This is the shallower of the two wells – as per description of GW1/05 above. Like GW1/05

this well is also contaminated with acid mine drainage.


stated



Chloride 15 30



Groundwater Level (m) 4.82 -

Odour odourless -

pH 3.8 6.5 – 8.5


Sodium 11 (note 1)

Sulphate 907 150

TOC 1.3 200

Total Phenols by

Colourimetry 0.05

Visual turbid, few suspended solids

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SW3: As the tag may indicate this location was once considered a surface water monitoring point,

however as the water contains landfill leachate the location has now been re-graded to a groundwater

monitoring point and approved by the agency. The well has high readings on most parameters due to

the mixture of leachate and acid mine drainage.


stated


Ammoniacal Nitrogen 9.6 0.15

Chloride 35 30



Groundwater Level (m) not recorded -

Odour odourless -

pH 4.0 6.5 – 8.5


Sodium 21 (note 1)

Sulphate 654 150

TOC 2.1 200

Total Phenols by

Colourimetry 0.09

Visual clear

The surface water at SW3 remains poor. Graphs of Conductivity, Sulphate and Ammonical Nitrogen

at this monitoring point with data from the past seven years are provided overleaf.

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Graph 2.1 – Conductivity (us/cm) Levels at SW3 (2004 to 2016). Capping was completed in October 2005.

Graph 2.2 – Sulphate (mg/l) Levels at SW3 (2005 to 2016). Capping was completed in October 2005.

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SW3 Conductivity

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SW3-Sulphate

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Graph 2.3 - Ammonical Nitrogen (mg/l) Levels at SW3 (2004 to 2016). Capping was completed in October 2005.

Private Wells: In total, four wells within 500m of the landfill footprint are included in the groundwater

monitoring programme. These are as follows:

Mary Merrigan

Donal O’Leary

Jeff Green

Eddie Coleman

Mary Merrigan:

With the exception of a low pH, all other chemical parameters were within guideline values.


stated



Chloride 9 30

Conductivity(uS/cm @ 20oC)

141 1000



Odour odourless 6.5 - 9.5

pH 5.9 5

Potassium <1 (note 1) No abnormal change

Sodium 4 (note 1) 0.5 micrograms

Sulphate 20 150

TOC 0.84 200

Total Phenols by Colourimetry

<0.05

0

5

10

15

20

25

mg/l

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Donal O’Leary:

With the exception of a low pH, all other chemical parameters were within guideline values.


stated



Chloride 12 30




Odour 6.0 6.5 - 9.5

pH Odourless 5

Potassium 1 (note 1) No abnormal change


Sulphate 15 150

TOC 0.36 200

Total Phenols by

Colourimetry <0.05

Visual clear

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Jeff Green: All chemical parameters were within guideline values.


stated



Chloride 13 30




Odour odourless -

pH 10.1 6.5 – 8.5

Potassium <1 (note 1) No abnormal change


Sulphate 32 150

TOC 1.1 200

Total Phenols by

Colourimetry <0.05

Visual clear 0.15

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Eddie Coleman: With the exception of a low pH, the All other chemical parameters were within

guideline values.


stated



Chloride 14 30




Odour grassy smell 6.5 - 9.5

pH 5.3 5

Potassium 1 (note 1) No abnormal change


Sulphate 24 150

TOC 0.52 200

Total Phenols by

Colourimetry <0.05

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2.3 Leachate Monitoring:

TelLab undertake leachate monitoring on a quarterly basis. Leachate analysis is undertaken at all

wells that are not dry.

During this quarter samples were taken on9th of May 2016. Leachate samples were obtained from

L10/01 and L10/02.

2.3.1 Leachate monitoring analysis.

L10/01: This leachate monitoring point is located in the waste body on the eastern end of the landfill.

Analysis shows the leachate to be of typical values for waste of this age.


stated

Analysis Results

mg/l

Ammonical Nitrogen 112

B.O.D. 498

C.O.D. 2945

Leachate Level 17.15

Odour musty

Visual murky, brown colour

L10/02: This leachate monitoring point is located in the waste body on the eastern end of the landfill.

Analysis shows the leachate to be of typical values for waste of this age.


stated

Analysis Results

mg/l

Ammonical Nitrogen 255

B.O.D. 93

C.O.D. 502

Leachate Level 7.77

Odour musty

Visual turbid, brown colour

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Ballymurtagh Landfill Tinnahinch Co. Wicklow Waste Licence: … · 2017. 2. 7. · SWD6: This monitoring location is a pipe discharge of water run-off from the Recycling Centre located

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