CHAPTER 6 DETAILED DESIGN OF RURAL WATER SUPPLY …
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Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-1 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
CHAPTER 6 DETAILED DESIGN OF RURAL WATER SUPPLY PROJECT
6.1 Detailed Design of Subproject
The detailed design components of each subproject are listed in Table 6.1.1, 6.1.2
and each subproject outline is shown in Figure 6.1.1.
6.1.1 Water Source (Intake)
(1) Water Sources for the Project
There are 41 water sources in the Project covering 43 subprojects projected water
supply systems as listed in the following table. Those water sources categorized
five types and their brief descriptions are given below the table.
Water Source Region Number Subproject
Dam North 1 1 Barbara Spring North 2 2 Fatnassa,M’hafdhia
North 9 Rouissat BouSmadah,Tergulech, Chaamba,Hmidet,Daaysia,HenchirTounsi OuedLagsab,SidiHarrath Deep Tube Well
South 7
16 Amairia,Blahdia,Bouchiha,Mahrouga, KahnguetZammour, Thleijia,BatenTrajma
North 4 Chouaoula,Chelalga,Gudifett, Zgainia GR Extension South 2
6 HenchirDhouaher,Ezzahra
North 9 FaidhElAmrine,HmaiemEssoufla,Tyayra,OuledBenMiled,SidiFredj,SidiHammed, Jimla,ElGaria,ElGarrag, SONEDE Connection
South 7
16 Bousslim,ElAitha,ChaabetEjjayer, Bougueddima,Chouamekh,Echguiguia, TarfEllil
Total 41
The allowable and design intakes of 41 subprojects are listed in Table 6.1.3. The
proposed design intake is decided based on the maximum daily demand of year
2017. However, design intake is some times restricted by allowable yield of each
water source. The allowable intake of surface water and spring for each subproject
is authorized by related local water resources office based on the agreement
between AGR and local water resources office. The design intake of tube well
should be considered with allocated and allowable intake of each well, because
some tube wells are used for irrigation and co-operative use with other communities.
The allowable intake of each well is recommended by DGRE. The design intake of
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GR Extension and SONEDE connection are also restricted by the allowable intake
which are provided from existing water supply systems.
1) Dam
The northwest mountainous area is divided into two areas by the Oued
Majerda River which flows from west to east. The north mountainous area is
called Kroumiri and Mogod and its geological structure is mainly fissured silt
rock or lime stone. Rainwater consequently infiltrates into the ground easily
and water comes out in many places as springs. However, such high pervious
ground formation condition makes it difficult to find groundwater sources.
Three subprojects in Jendouba, i.e. Ouled Dhifallah, Maalim and Jouaouda
1/battaha, were, therefore, planned to make use stored water of Barbara dam
under an unified water supply system of Complex AEP Barbara. The intake
facilities design applied to dam is attached to Figure 6.1.2.
2) Spring
As described above, subprojects which water source is a spring are located in
Governorates Beja and Le Kef. A spring is generally has been tapped by a
concrete structure. Considering the geological conditions in the area, the time
of which water passes through the ground does not seem so long. It means that
the water from spring is still contaminated and the discharge may have
seasonal fluctuation. The allowable intake was consequently determined
based on the discharge of the water source spring in dry season, i.e. in summer.
Moreover, the Study Team recommended concerned AGR protection of
assumed catchment area from contamination by human activities. The intake
facilities design applied to spring is attached to Figure 6.1.3.
3) Deep Tube Well
Groundwater sources in the subprojects are developed by 16 deep tube wells
in 8 governorates from the North to the South as shown in Table 6.1.4., which
shows the discharge with corresponded drawdown at the pumping test of each
well. The designed pumpage of each subproject of which water source is the
deep tube well is always less than that applied to the pumping test. Further
more, the pump operation hours in general are 16 for the project of which
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power source is STEG and 12 for a generator. It therefore does not seem to
affect the groundwater level. The intake facilities design applied to deep tube
well is attached to Figure 6.1.4.
4) Extension GR
If there is an existing water supply system established under the Rural Water
Supply Program executed by CRDA near a subproject and the system has
enough capacity to supply water to another water supply system, the
subproject water source would draw upon such system. Such type of project is
called “Extension GR”.
Though it necessitates to study the following:
a) Necessity of existing facilities alternation such as expansion,
rehabilitation, replacement of equipment, etc.
b) Financial analysis should be made including residual value of existing
facilities
c) Policy whether GIC should be established independently or merged with
an existing GIC which manages the existing system
If the capacity of the water source permits, Extension GR is preferable from
the viewpoint of the whole project cost. The intake facilities design applied to
GR extension is attached to Figure 6.1.5.
5) SONEDE Connection
Similar to above, if the water supply from SONEDE is available near a
subproject area, the subproject planned to connect the projected water supply
system to the SONEDE water supply system under the agreement with
SONEDE. Though a technical study is necessary in case that assured supply
and residual pressure at a connecting point were not enough for a subproject
design, well-controlled quality of water supplied by SONEDE was desirable
for small scale water supply that would be managed by beneficiaries. The
intake facilities design applied to SONEDE connection is attached to Figure
6.1.5.
(2) Scheme Set Out
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41 projected water supply systems retained according to the type of water
distribution are distributed as follows:
1) 16 water supply systems designed on deep wells,
2) 16 water supply systems designed on SONEDE connection,
3) 6 water supply systems designed on GR extension (extension from the old
networks undertaken by AGR of CRDA),
4) 2 water supply systems designed on a spring, and
5) 1 water supply system designed on dams, as Complex AEP Barbara.
6.1.2 Classification of Water Delivery System
41 projected water supply systems which consist of 43 subprojects can be classified
regarding their transmission method. The subprojects of Ouled Dhifallah, Maalim,
and Jouaouda 1/ Battaha in Jendouba are considered as a unified water supply
system of Complex AEP Barbara. It is shows in the following table.
Description SONEDE
Connection Deep tube
well GR
extension Spring Dam Total
Gravitational 6 0 2 0 0 8 With pump pressurized One pump 5 12 1 0 0 18 Two and over pumps 0 2 1 1 1 5 Pumps with pressure tanks 1 2 0 0 0 3 Pressure tanks 1* 1 0 0 2 Gravitational with Pressure tanks 2 1 3 Gravitational with Pump 1 1 2
Sub-total 10 16 4 2 1 33 Total 16 16 6 2 1 41
Note: * Tyayra (Ariana) operates with 2 surpressers.
Among 28 systems operating with pumping, five adopt two and over pumps which
are Fatnasssa subproject in Beja using four pumps on a spring source, Ghaamba
subproject in Le Kef and Sidi Harrath-Gouassem subproject in Kasserine using two
pumps on a deep tube well, Chouaoula subproject in Jendouba planned three pumps
on a GR Extension, and Complex AEP Barbara planned seven pumps on the Dam
source. Indeed, a relay pump is adopted with a well pump to avoid using a
generator because no three-phased current is supplied in case of Chaamba
subproject. Sidi Harreth subproject is designed on a deep well aimed to serve two
networks (Sidi Harreth and Torch), which have respective distribution tanks located
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on different elevation spots. One pump cannot be applied to the transmission to two
tanks. Therefore, one relay pump is considered just beside the well hosting the well
pump for the two water supply systems. Consequently, for these two subprojects, a
relay pumping station will be constructed respectively just beside the deep tube
well, which may ease the operation of these equipment, namely, that of water
supply systems.
Only one system is designed on a single-phased current for four pumps on a spring.
That is Fatnassa subproject in Beja, the first pumping station is designed for intake
pumps. The intake pumps transmit water to the existing tank, which relays it to a
projected distribution tank supplying water to an existing network. The second
pumping station will be constructed beside the existing tank to pump water up to the
projected tank positioned at a place with sufficient elevation for serving
gravitationally Fatnassa population. Two same capacity pumps will be installed in
each pumping station and operate in parallel because available single-phased motor
pumps can not meet the required specification by only one pump for the system.
Though this is the case of two stations, they are located at around 1,500m from each
other. This distance is not so important for there is only one pump operator to be in
charge of both stations.
Consequently, it can be concluded that the systems are simple and easier to be
managed by future GIC.
The systems provided with pumps that are exposed to high and low pressures due to
a physical wave-swinging phenomenon, widely called as Water Hammer. The most
characteristical reasons of this phenomenon are due to pump stops and closure of a
valve, but it happens under much various circumstances.
Consequences of Water Hammer may be spectacular (pipe bursting or tap snatching,
flattening under low pressure effect), but mostly insidious (material tiredness, pump
rupture, joint aspiration….) and provoke a system yield dimming. In order to
protect the network, diverse systems can be used (chimney, discharge valve, water
hammer balloon…). The protection system that is most frequently used for drinking
water supply projects is that of water hammer balloon. It is a simple protection
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system avoiding any head loss. This system consists in a hydro pressure tank filled
up by 2/3 of water with 1/3 of air. Two plays a role of shock absorber due to the
wave-swinging phenomenon described here above.
6.1.3 Power Supply
Out of the 33 systems which adopt pressurized operation, there are eight systems
which will install the pressure tank with a single-phase current power supply.
Out of the other 28 pump operating systems, 23 system operate one, 2 system
operate 2 pumps and remaining 3 system operate 3, 4, and 7 pumps respectively,
then finally 41 pumps will be installed in the Project 2001 using different energy
types shown below:
(1) 23 pumps operating with three-phased current,
(2) 13 pumps operating with single-phased current, and
(3) 4 pumps operating with generator.
Using generators should be limited as much as possible because the fuel purchasing
and generator maintenance may handicap GIC operation. The Study Team state the
case of Chaamba subproject in Le Kef which population claims that with only one
generator the subproject cannot be successful because the area is isolated and away
from fuel service stations. Therefore, using two pumps operating in single-phased
current is proposed. This solution is also adopted for Fatnassa subproject in Béja in
order to avoid using two generators which may increase running costs including
water cost per m3 in addition to the aforesaid disadvantages.
Pump station power supplying in three phase electric current from STEG network
requires installing a transformer. Power of transformer may be designed on the
basis of a power absorbed by pumping motor unit and also another power required
for lighting. After calculating absorbed power (pumping and lighting), a
corresponding transformer is selected among those standardized (10, 16, 25, 30, 40,
63, 80, 100 et 125 kVA). The standard designs concerning as the pumping station
are attached to Figure 6.1.6 ~ 6.1.8.
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6.1.4 Treatment
In rural water supply project, the only treatment foreseen is a disinfecting treatment
generally performed with bleach water. On the other hand, concerning Ouled
Dhifallah subproject in Jendouba, which also supplies two other subprojects and
designed on Barbara dam, installing one filtration station is necessary before water
disinfecting process.
In Project 2001, the disinfection by adding javel water (hypochlorite) at a
transmission in general is considered as the treatment except a filtration system
adopted in “Complex AEP Barbara” water supply system which will supply water
to three subprojects in Jendouba governorate: Ouled Dhifallah, Maalim and
Jouaouda 1/battaha.
As explained in Chapter 6.1.1, it is quite difficult to find good groundwater
resources in Jendouba governorate, the population consequently depends on the
surface water resources or springs. These three subprojects were planned to make
use of stored water in dam lake.
Since the intake facilities for such small scale water supply projects had not been
designed in the said dam project, the intake pump was planned to be installed in the
irrigation intake facilities to avoid a little complicated design to meet the water level
fluctuation of dam lake.
Moreover, surface water necessitates, in general, the treatment to reduce its
contained particles, colloid with microbiology until the specified level generally
acknowledged as the drinkable water. In this sense, a package water treatment is
planned to introduce to the projected water supply system considering its easier
O&M. Because a subproject in Jendouba constructed under the Rural Water Supply
Program has been installed and well operated the package water treatment plant.
Therefore, the planned plant for the projects was recommended to adopt same type
of existing one to make future O&M easier by having assistance from the said
subproject. The route for spare parts procurement for the plant is supposed to be
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available is another reason.
As detail is described in Figure 6.1.9, the system of the package plant is quite
simple; it has sole function, i.e. filtration, anticipating the good sedimentation
function from the dam reservoir. In fact, the turbidity at the intake point was only 6
NTU while its value at upstream is 16 NTU according to the result of water quality
analysis executed by the Study Team at the end of the rainy season.
Considering above-mentioned conditions, the targeted three project sites are
planned to supply water by one water supply system for making the system
optimum in viewpoints of construction cost, O&M, etc.
The maximum daily water supply, which is the base to determine the capacity of the
plant, is around 700 m3/day according to the socio-economic survey of the said
projects and the plant necessitates around 5% of the necessary treatment water
volume for washing the filter sand. The capacity of the plant, consequently, is
estimated at around 750m3/day.
6.1.5 Disinfecting
12% hypochlorite solution is used for disinfection in the rural water systems. This
solution is familiar in Tunisia by the name of “Javel water”.
The minimum residual free chlorine concentration at the service points is 0.1
mg/liter according to the guideline of SONEDE. Though it depends on raw water
quality regarding microbiological indexes and staying time of water in a system, it
necessitates from 0.5 to 2.0 mg/liter chlorine dose at a pumping station.
DGGR applies 0.8mg/liter of chlorine as the dosage to designing the rural water
supply system considering its small scale. The injection method applied to the
Project 2000 was only that of using volumetric pump to inject “Javel water” to the
transmission pipe. The standard disinfection equipment drawing is attached to
Figure 6.1.7.
As in Tunisia, for disinfecting, 38.52g/L free chlorine bleach water is used.
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Diluting this liquid in a preparation basin allows to constitute a solution in
necessary concentration and quantity for insuring an autonomous operation for
several days with a reasonable injection rate. Measuring chlorinating posts is made
in the following way:
(1) Javel water measuring = Pumping rate in l/h x 0,8g/l = …….l/h, 38,52g/l
(2) Injection rate set between 1l/h and 2l/h for pumps with maximum flow rate of
3l/h and between 1.5l/h and 3.5l/h for pumps with maximum flow rate of 5l/h,
and
(3) Desirable autonomous operation between 1 and 3.5 days according to daily
pumping.
6.1.6 Water Storage Tank
Storage tanks serve to store the water needs of population. They are sized so as to
meet one of two values:
(1) 25% of daily peak demand (defined in Chapter 5), and
(2) 50% of average daily demand (defined in Chapter 5).
Selection of volume can follow the following criteria: a semi-buried storage tank
may be sized close to 25% of daily peak demand and water tower for 50% of daily
average, by considering extension problems and marginal price difference on
execution. Another factor is due to pumping by generator that requires ensuring a
more comfortable storage for compensating more extended pump stopping. It is
also valid in case of water coming from irrigations.
Certain subprojects designed on SONEDE connection or GR extension require no
storage tank because water storing may be insured by existing infrastructure.
31 projected water supply systems of 41 will have storage tanks and three systems
were planned to make use of existing tank. Remaining 7 systems do not necessitate
the distribution tank; there are three systems of which distribution will be made by a
pressure tank, six systems which were designed on SONEDE connection and
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remaining three which were designed on GR extension will make use of residual
pressure at a connection point of distribution pipeline of the respective systems.
In case of the Complex Bouslim subproject, two distribution tanks are projected in a
big network designed on SONEDE connection. Needs for storing are about 400m3,
therefore, two tanks are planned, one is on pillars having a capacity of 250m3 to
serve the upper located population, another is half-buried type having a capacity of
150m3 designed to supply the lower located population. The standard design of the
semi-buried type tank is attached to Figure 6.1.10.
Subprojects List using Water Storage Tank Type and Volume Subproject Governorate
Semi-buried type、10m3 M’hafdhia-Ghraissia Le Kef Semi-buried type、15m3 Jimla
El Garia Zaghouan Béja
Semi-buried type、20m3 Sidi Fredj Daaysia Ouled Lagsab Amairia
Ben Arous Kasserine Kasserine Sidi Bouzid
Semi-buried type、30m3 Blahdia Mahrouga
Sidi Bouzid Sidi Bouzid
Semi-buried type、40m3 Sidi Hammed Roussat Bougarmine Smadah Terguleche Complexe Barbara
Nabeul Zaghouan Bizerte Bizerte Jendouba
Semi-buried type、50m3 Fatnassa Chououla Complexe Barbara Chaamba-O.El Assel-Hmaidia Hmidet Sidi Harrath-Gouassem Bouchiha Baten Trajma Chouamekh-R.Ennagueb
Béja Jendouba Jendouba Le Kef Kairouan Kasserine Sidi Bouzid Gabes Medenine
Semi-buried type、60m3 Khanguet Zammour Gafsa Semi-buried type、100m3 Complexe Barbara Jendouba Semi-buried type、150m3 Complexe Bouslim Mahdia Elevated tank 25m3 x 15m Henchir Tounsi Kasserine Elevated tank 25m3 x 15m Tarf Ellil Medenine Elevated tank 25m3 x 15m Thleijia Gafsa Elevated tank 25m3 x 15m Complexe Bousmil Mahdia
Water storage tanks are reinforced concrete structure made. The interior should be
waterproofed for minimizing any water leak. Interior waterproofing is ensured
thanks to special mortar coating prepared by cement called SIKA cement.
Water level of the tank is controlled both manually and automatically. In case of
automatic control, the following two methods are applied:
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(1) Water level sensor with pilot cable signal transmission
(2) Water level sensor with radio signal transmission
There is another manual control method using pressure sensor to be installed in the
transmission pipeline in the pumping station. It starts manually, stops and is
controlled by a pressure detector.
The selection of a method depends on the distance and ups and downs condition
between the pumping station and the tank. If the topographic conditions allow, the
distance decides the method in general. The following are guidelines for the
selection:
Less than 1 km: Pilot cable
From 1 km to 3 km: Pressure sensor
Over 3 km: Radio (even if less than 3km, topographic condition is
much ups and downs, this system is applied)
The waterproof treatment of the tank is made with cement mortar which contains
chemical agent for water tightness.
6.1.7 Distribution Pipeline and Its Ancillary Facilities
The pipeline networks may be classified in three categories:
(1) Conveyance pipes: this type of pipeline links up connection points on an
existing network (SONEDE or GR network) with pumping stations often also
called relay stations,
(2) Transmission pipes link up pumping stations with water storage tanks, and
(3) Distribution pipes: starting from water storage tanks or connection points in
case of gravitational network up to distribution points.
The pipeline lengths for 43 subprojects per category are:
(1) Conveyance pipes = 27,266 ml (2) Transmission pipes = 79,744 ml (3) Distribution pipes = 443,442 ml
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For Project 2001, polyethylene pipes should mostly be used because this type of
pipe offers several advantages:
(1) Polyethylene products are not carcinogenic as is the case for asbestos.
(2) Pipes are easy to handle and place as they are flexible.
(3) Number of accessories is less important because pipes are supplied in roll
shape with a length of 100 meters.
(4) Materials are flexible, likely to absorb shocks.
(5) Pipes are much less expensive than those of cast-iron. Indeed, a linear meter
of cast-iron pipes of 100mm diameter costs about 80DT while a linear meter
of polyethylene in equivalent diameter is about 15DT.
However, since the polyethylene pipe reportedly has the following defects, it should
be transported and handled carefully.
(1) Organic solvent such as toluene, benzene, etc erodes the pipe
(2) Gasoline, kerosene, etc deteriorates the pipe
(3) Sunlight (ultraviolet rays) deteriorates the pipe
On 41 water supply systems, 39 are provided with conveyance and distribution
pipes that are high-density polyethylene made. Only two subprojects have ductile
pipes. That concerns Complex AEP Barbara (Jendouba Governorate), Smadah
(Bizerte Governorate) where geometric heights overrun the polyethylene nominal
pressure of 16 bars.
Pipe setting works may respect the standards of pipeline layout drawings, depths
and slopes. The stadard design of the pipe installation works and the ancillary
equipment are attached to Figure 6.1.11 ~ 6.1.14 respectively.
(1) Layout of pipeline network
Pipeline should be set along existing roads so that it is easy to spot in order to avoid
any pipe damage on probable developing works. The distance with respect to roads
or routes axis should meet the prescriptions of Ministry of equipment, that is to say:
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1) 7.5 m for listed roads
2) 15 m for routes
In case of no natural landmark for pipeline, a signposting or boundary marking
should be done every 300 m and at all direction changing.
(2) Covering of pipes
Minimum pipeline covering is 80 cm above upper generatrix. However, it is
desirable not to exceed 1.50 m deep.
(3) Pipe setting slope
Minimum upward and downward slops in the current direction will be respectively
2%o and 4%o.
Conveyance, transmission, and distribution networks are provided with Wash Out
and air bleeding works playing the following roles.
(4) Wash Outs
Works to be used for drainage pipes in case of repairing or maintenance, because
water generally contains dry residues likely to reach 2g/l. Wash outs are also used
for cleaning pipes. In order to wash out all pipes, these works are bottom mounted.
Their handling can be made with direct pass ball type valve taps fixed in manholes.
As a safety and preventive precaution against any destruction likely to be caused by
citizen, all parts mounted in manholes (valves, T pipes, removal parts, accessories,
etc) should be ductile cast-iron made.
(5) Air Valves
Air valves are mounted on top of materials for air bleeding. Indeed, there are two
types used for different three purposes. The purposes of air valves allow to
evacuate air in normal operation and to retake air in case of breakdown.
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Consequently, they are recommended especially for transmission pipes.
The single purpose air valves are to allow air to be purged in normal operation.
They are mostly used for distribution and conveyance pipes.
In addition, distribution networks should be provided with pressure control works
of two types as follows:
(6) Break Pressure Tanks
These works are used for decreasing pressure at an appointed point on an
atmospheric pressure network. Break pressure tanks are used when there is an
useless overload still going to increase in pipe. They are mini storage tank of 8m3
capacity provided with floating valves allowing an automatic shut-open function
according to upstream water demand.
(7) Pressure Reducer
Mechanical instruments allowing to control intake and discharging pressures. They
are used to reduce pressures at an appointed value not by bringing it to the
atmospheric pressure. In our case, these devices are used especially for maintaining
the operating pressure at distribution point level to an admissible value, generally
less than 5 bars.
(8) Dividing works
When secondary pipes start from a main pipe, dividing works should be constructed
at its starting point. These works consist of cast-iron parts such as T pipes, reducing
cones, and principally dividing valves. These valves serve to isolate downstream
stubs in case of any breakage or non-payment by beneficiaries.
6.1.8 Service Point
Service points are those of water distribution. Selecting distribution point types
(BF or potence) has been based on the number of beneficiaries and also on the
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dispersion rate according to the standard and criteria fixed by DGGR, that is to say
about 100 habitants by BF and up to 200 habitant by potence. Potence is a water
distribution work constructed with a steel pipe of 40mm diameter mounted about
2m above ground level for allowing water tank filling operation. Also, easiness of
access and distance of groups from distribution points (500m for BF and 2km for
potence) have been taken into consideration. On this basis and because the ground
is uneven in northern governorates, potences are practically not used. Indeed, 43
subprojects total up 481 distribution points including 430 communal taps, 23
existing communal taps, and 28 potences. These figures were fixed after discussion
with beneficiary families of each subproject. The north region governorates (those
having a daily peak coefficient of 1.25) count 310 service points including 6
potences only, that is to say 1.9%. Three out of six potences are located especially
in Kasserine, a semi arid area.
The south region governorates (those having a daily peak coefficient of 1.5) count
171 distribution points including 22 potences, that is to say 13%. The number of
potences is relatively higher in the South, which is due to the rate of dispersion,
nature of relief, and customs of citizens for water storage.
The standard design of the communal point and the potance are attached to Figure
6.1.15 and 6.1.16 respectively.
6.2 Construction Plan
6.2.1 Construction Method
(1) Facilities and major work quantities
Construction work is composed of pipe laying, civil work such as reservoir; pump
station, public tap, potence and related structure, and electrification work. Major
construction facilities are shown in Table 6.2.1.
(2) Pipe laying
1) Excavation: Minimum trench width shall be outer diameter of pipe plus
40cm (20cm between trench wall and outside of pipe in both sides).
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Minimum trench depth shall be (80cm from top of pipe + outer diameter
of pipe + pipe bed thickness).
a) Sandy soil, cohesive soil, and gravelly soil: Trench shall be excavated
according to the specified width and depth by an excavator with
appropriate width bucket or manually excavated.
b) Rock: Trench shall be made by drill or breaker.
2) Pipe bed: Pipe bed thickness shall be minimum 10cm in normal soil. In
case excavated bed is rock, pipe bed thickness shall be minimum 20cm.
Pipe bed which consists of appropriate excavated soil or sand shall be
compacted with plate-vibrating compactor or rammer.
3) Back filling: Excavated soil shall be used for backfilling except
inappropriate soil. The soil shall be sieved and then only sandy soil shall
be backfilled up to 20cm from the top of the pipe. Backfilling shall be
manually well compacted with plate-vibrating compactor or rammer of
20cm finishing thickness. Minimum covering of soil shall be 60cm from
top of pipe to surface.
4) Pipe jointing works: Polyethylene pipe shall be connected by electric
fusion joint.
(3) Structure work
1) Reinforcing bar
Reinforcing bar shall be used in compliance with the technical specification.
Deformed bars in steel should be of the TUNSID-42 type.
2) Concrete works
a) Concrete mixing:
Test mixing shall be carried out in several compositions and 6 specimens
are prepared from each composition. 3 specimens are tested for 7 days to
have compressive strength and remaining 3 for 28th days for compressive
strength.
b) Casting concrete:
The temperature of the concrete at casting shall be less than 35℃.
Concrete shall be compacted by vibrator or other appropriate method.
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-17 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Cast concrete shall be cured from bad effects due to low temperature,
drying up, sudden temperature change, etc.
3) Ancillary facilities
Ancillary facilities such as water level sensor, water meter, valves, etc., shall
be installed in compliance with the technical standard or manufacturer’s
instruction.
4) Finishing work
After the completion of structural works, anti-leak mortar shall be executed
inside the tank wall up to a little higher than designed high water level and
painting shall be made outside the tank.
(4) Equipment installation
Equipment such as pump, filtration facility, disinfection facility and so on shall be
installed in principle by supplier under the condition of turn key basis.
(5) Electrical works
Electrical works is contracted out to STEG.
(6) Available workable days
6.2.2 Construction Schedule
Available workable days for construction work are estimated on the basis of rainfall
data in each subproject and holidays. The actual operation hour is assumed to be 8
hours per day.
The structure works proceed in parallel with pipeline works. Work schedule is
made considering work conditions at each site such as weather, topography,
geology, and social condition. 15-30 days are needed for the temporary works. An
average production rate per day per unit or group is 150m for excavation (sandy,
cohesive, gravelly soil), 80m (PEHD DE90-200), 120m(PEHD DE63-75) for pipe
laying, 70m for backfilling. Contractor shall adjust production rate at it's
convenience. It will take 40-60days for structure works such as pump station and
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-18 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
reservoir and 8-12days for small structures works.
6.3 Tender Documents
6.3.1 Tender Documents Components
The tender documents are composed of the following documents:
(1) Procurement and installation of pipe networks and civil works
1) Explanation of tender and draft condition of contract
2) Technical specifications:
a) Procurement of pipes and special parts
b) Installation and equipment of pipe networks
c) Civil works
3) Design Drawings
4) Bill of quantities
(2) Hydro-mechanical and electrical works
1) Explanation of tender and draft condition of contract
2) Technical specifications
3) Bill of quantities (generally included in Bill of quantities of Procurement
and installation of pipe network and civil works)
A model tender documents for the rural water supply projects was made by DGGR
in 1996 and sent to the CRDA. The table of contents on DGGR model tender
document are shown in Table 6.3.1. The CRDA made their tender documents in
accordance with the DGGR Model and conducted their tenders. The tender
documents and contract of the rural water supply project need the approval of the
Contract Committee of the local government as a part of the policy of
decentralization adopted in 1999. So, each CRDA has reviewed and modified the
DGGR model tender documents. The tender documents of almost all the CRDA are
the same as the DGGR Model.
6.3.2 Tendering Method
(1) Procedure of the tender
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-19 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
The tender will be a local competitive open bidding. The bidder has to have a
construction license of the Ministry of Housing and Equipment for the water supply
project, and also be registered as a construction company of water supply project
with CRDA. The public announcement of tender for the construction of subproject
is published in three newspapers in French and Arabic. The implementation of the
subproject, its name, applicant qualification, tender schedule and distribution place
of the tender documents are in the tender announcement.
The tender adopts the two (2)-envelope method: one is the technical proposal and
the other is the cost proposal. The opening of tender may be done in two stages.
The technical proposals are open first and the technical evaluation is done. And
then, the cost proposals of the bidders that have passed the technical competitions
are open. As a part of the policy of decentralization adopted in 1999, the approval
of the tender documents and contract of the water supply project by the Contract
Committee of the local government is mandatory.
(2) Tendering matters and supervision during construction period
The CRDA conducts the tender and is the owner of the subproject. The local
consultants employed by CRDA will conduct the supervision of construction works.
The Japanese Consultant employed by DGGR will assist in the technical aspects
and management of the Project through DGGR.
Tab
le 6
.1.1
Soc
io-e
cono
mic
Con
ditio
ns o
f Eac
h Su
bpro
ject
and
its
Pro
ject
ed W
ater
Dem
and
Gov
erno
rate
Subp
roje
ctW
ater
Sou
rce
Gro
uped
Popu
latio
nin
200
0
Gro
uped
Popu
latio
nin
201
7
Scat
tere
dPo
pula
tion
in 2
000
Scat
tere
dPo
pula
tion
in 2
017
Popu
latio
nin
200
0Po
pula
tion
in 2
017
Dis
pens
ary
Mos
que
Scho
olO
ther
Fac
ilitie
sSh
eep
and
Goa
t
Cow
, Hor
sean
dD
onke
y
Max
imum
Dai
ly W
ater
Supp
ly w
ith L
oss
in 2
002
(m3 /d
ay)
Max
imum
Dai
ly W
ater
Supp
ly w
ith L
oss
in 2
017
(m3 /d
ay)
Ave
rage
Dai
ly W
ater
Sup
ply
with
Los
s in
200
2 (m
3 /day
)A
vera
ge D
aily
Wat
er S
uppl
yw
ith L
oss
in 2
017
(m3/
day)
FAID
H E
L A
MR
INE-
SID
I GH
RIB
SON
EDE
CO
NN
ECTI
ON
374
515
307
423
681
938
1,06
922
139
5531
44H
MA
IEM
ESS
OU
FLA
SON
EDE
CO
NN
ECTI
ON
120
166
5576
175
242
7011
310
158
12TY
AY
RA
SON
EDE
CO
NN
ECTI
ON
128
176
9012
421
830
038
189
147
11Su
btot
al62
285
745
262
31,
074
1,48
01,
177
352
5883
4667
OU
LED
BEN
MIL
ED a
nd O
ULE
DSA
AD
SON
EDE
CO
NN
ECTI
ON
776
1,34
822
639
31,
002
1,74
11
1,58
930
461
106
4985
SID
I FR
EDJ
SON
EDE
CO
NN
ECTI
ON
335
581
172
298
507
879
131
630
333
5427
43Su
btot
al1,
111
1,92
939
869
11,
509
2,62
02
1,90
560
795
160
7612
8N
AB
EUL
SID
I HA
MM
EDSO
NED
E C
ON
NEC
TIO
N1,
162
1448
148
184
1,31
01,
632
1194
173
6397
5177
Subt
otal
1,16
21,
448
148
184
1,31
01,
632
1,19
417
363
9751
77JI
MLA
SON
EDE
CO
NN
ECTI
ON
239
264
239
264
Fact
ory
163
3111
169
13R
OU
ISSA
T B
OU
GA
RM
INE
DEE
P TU
BE
WEL
L87
897
326
929
71,
147
1,27
01
12,
825
268
6383
5166
Subt
otal
1,11
71,
237
269
297
1,38
61,
534
11
2,98
829
975
9960
79SM
AD
AH
DEE
P TU
BE
WEL
L1,
045
1,25
91,
045
1,25
91
2C
oope
rativ
e4,
122
721
6592
5273
TER
GU
LEC
HD
EEP
TUB
E W
ELL
1,15
11,
386
1,15
11,
386
180
823
958
8847
71Su
btot
al2,
196
2,64
52,
196
2,64
51
34,
930
960
123
180
9814
4EL
GA
RIA
SON
EDE
CO
NN
ECTI
ON
299
305
159
162
458
467
855
333
2429
1923
EL G
AR
RA
GSO
NED
E C
ON
NEC
TIO
N1,
412
1,43
51,
412
1,43
51
353
358
6993
5574
FATN
ASS
ASP
RIN
G1,
013
1,03
01,
013
1,03
01,
453
488
5875
4660
Subt
otal
2,72
42,
770
159
162
2,88
32,
932
12,
661
1,17
915
019
612
015
7C
HO
UA
OU
LAEX
TEN
TIO
N G
R2,
247
2,40
62,
247
2,40
62
12
CR
A, C
RC
D1,
474
889
130
174
104
139
CO
MPL
EXE
AEP
BA
RB
AR
AD
AM
5,04
05,
394
7,45
27,
976
12,4
9213
,370
41
8
Rur
al G
irls
Cen
ter,
Nor
th W
est P
roje
ctO
ffic
e, N
atio
nal P
olic
e St
atio
n x
2,Fo
rest
ry S
tatio
n x
2, Y
oung
Per
son'
sC
ente
r13
,996
2,81
160
371
448
257
1Su
btot
al7,
287
7,80
07,
452
7,97
614
,739
15,7
766
210
15,4
703,
700
733
888
586
711
CH
AA
MB
A -
O.E
I ASS
EL -
HM
AID
IAD
EEP
TUB
E W
ELL
485
485
176
176
661
661
11
3,37
931
935
4228
34M
'HA
FDH
IA -
GH
RA
ISSI
ASP
RIN
G39
439
480
8047
447
43,
043
258
2632
2026
Subt
otal
879
879
256
256
1,13
51,
135
11
6,42
257
760
7448
59C
HEL
ALG
AEX
TEN
TIO
N G
R1,
148
1,33
637
843
81,
526
1,77
4C
olle
ge, O
il fa
ctor
y, B
ain
Mau
re2,
606
494
8611
569
92G
UD
IFET
TEX
TEN
TIO
N G
R88
11,
026
329
383
1,21
01,
409
11
2,60
835
168
9054
72H
MID
ETD
EEP
TUB
E W
ELL
1,60
91,
875
1,60
91,
875
2,71
210
083
121
6697
ZGA
INIA
EXTE
NTI
ON
GR
663
772
3035
693
807
11,
661
160
4258
3346
Subt
otal
4,30
15,
009
737
856
5,03
85,
865
21
9,58
71,
105
278
384
222
307
DA
AY
SIA
DEE
P TU
BE
WEL
L23
630
410
112
933
743
342
064
1825
1420
HEN
CH
IR T
OU
NSI
DEE
P TU
BE
WEL
L71
491
932
742
11,
041
1,34
01
4,12
126
160
8448
67O
UED
LA
GSA
BD
EEP
TUB
E W
ELL
300
386
216
279
516
665
11,
895
149
2939
2331
SID
I HA
RR
ATH
- G
OU
ASS
EMD
EEP
TUB
E W
ELL
606
781
232
299
838
1,08
02
11,
454
179
4767
3854
Subt
otal
1,85
62,
390
876
1,12
82,
732
3,51
82
12
7,89
065
315
421
612
317
3A
MA
IRIA
DEE
P TU
BE
WEL
L28
436
680
103
364
469
347
5021
3214
21B
LAH
DIA
DEE
P TU
BE
WEL
L56
973
325
633
182
51,
064
2,02
522
057
8038
53B
OU
CH
IHA
DEE
P TU
BE
WEL
L98
91,
274
527
678
1,51
61,
952
11
4,05
343
410
414
469
96M
AH
RO
UG
AD
EEP
TUB
E W
ELL
489
630
146
188
635
818
11,
270
167
4564
3043
Subt
otal
2,33
13,
003
1,00
91,
300
3,34
04,
303
12
7,69
587
122
732
015
221
4C
OM
PLEX
E B
OU
SSLI
MSO
NED
E C
ON
NEC
TIO
N5,
245
6,42
65,
245
6,42
62
35
11,9
591,
384
392
562
261
375
CO
MPL
EXE
EL A
ITH
ASO
NED
E C
ON
NEC
TIO
N1,
214
1,48
61,
214
1,48
62,
189
433
9113
060
87Su
btot
al6,
459
7,91
26,
459
7,91
22
35
14,1
481,
817
483
692
322
461
HEN
CH
IR E
DH
OU
AH
EREX
TEN
TIO
N G
R27
129
527
129
549
034
1824
1216
KH
AN
GU
ET Z
AM
MO
UR
DEE
P TU
BE
WEL
L1,
636
1,78
11,
636
1,78
12
2Sa
nita
tion
Cen
ter
2,00
722
610
014
067
94TH
LEIJ
IAD
EEP
TUB
E W
ELL
1,49
21,
625
1,49
21,
625
12
2,51
636
310
514
270
95Su
btot
al3,
399
3,70
13,
399
3,70
13
45,
013
623
224
307
149
204
BA
TEN
TR
AJM
AD
EEP
TUB
E W
ELL
2747
3092
2,74
73,
092
1763
832
913
914
993
100
CH
AA
BET
EJJ
AY
ERSO
NED
E C
ON
NEC
TIO
N28
432
028
432
081
017
2028
1419
EZZA
HR
AEX
TEN
TIO
N G
R19
822
319
822
315
923
1117
711
Subt
otal
482
543
2,74
73,
092
3,22
93,
635
18,6
0736
917
019
411
412
9B
OU
GU
EDD
IMA
SON
EDE
CO
NN
ECTI
ON
319
418
319
418
1,51
271
2537
1624
CH
OU
AM
EKH
- R
. EN
NA
GU
EBSO
NED
E C
ON
NEC
TIO
N2,
147
2,81
22,
147
2,81
23,
714
269
142
222
9414
8EC
HG
IUIG
UIA
SON
EDE
CO
NN
ECTI
ON
478
627
478
627
502
3027
4518
30TA
RF
ELLI
LSO
NED
E C
ON
NEC
TIO
N47
662
347
662
32,
239
147
3754
2536
Subt
otal
3,42
04,
480
3,42
04,
480
7,96
751
723
035
815
323
8To
tal
39,3
4646
,603
14,5
0316
,565
53,8
4963
,168
1213
3210
7,65
413
,802
3,12
34,
249
2,32
03,
150
AR
IAN
A
BEN
AR
OU
S
ZAG
HO
UA
N
BIZ
ERTE
BEJ
A
JEN
DO
UB
A
LE K
EF
KA
IRO
UA
N
GA
BES
MED
ENIN
E
KA
SSER
INE
SID
I BO
UZI
D
MA
HD
IA
GA
FSA
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-20 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Tab
le 6
.1.2
Pro
ject
ed I
nsta
llatio
ns a
nd F
acili
ties
for
Eac
h Su
bpro
ject
Gov
erno
rate
Subp
roje
ctW
ater
Sou
rce
Popu
latio
nin
200
0Po
pula
tion
in 2
017
Ave
rage
Dai
ly W
ater
Sup
ply
with
Los
s in
200
2 (m
3 /day
)A
vera
ge D
aily
Wat
er S
uppl
yw
ith L
oss
in 2
017
(m3/
day)
Num
ber o
fC
omm
unal
Tap
Num
ber o
fE
xist
ing
Com
mun
alTa
p
Num
ber
ofPo
tenc
e
Num
ber o
fIn
divi
dual
Con
nect
ion
Popu
latio
n pe
rSe
rvic
e Po
int
Num
ber o
fPu
mpi
ng S
tatio
n
Num
ber o
fR
elay
Pum
ping
Stat
ion
Bre
akPr
essu
reA
irV
alve
Was
hO
utPa
titio
nW
ork
Pres
sure
Red
ucin
gV
alve
Prot
ectio
n ag
ains
tW
ater
Ham
mer
(Bal
loon
Vol
ume:
liter
)FA
IDH
EL
AM
RIN
E-SI
DI
GH
RIB
SON
EDE
CO
NN
ECTI
ON
681
938
30.9
643
.64
713
4.0
113
5H
MA
IEM
ESS
OU
FLA
SON
EDE
CO
NN
ECTI
ON
175
242
8.36
12.1
21
180
.31
2TY
AY
RA
SON
EDE
CO
NN
ECTI
ON
218
300
6.81
11.0
23
100.
08
64
Subt
otal
1,07
41,
480
4667
111
113.
820
911
OU
LED
BEN
MIL
ED a
ndO
ULE
D S
AA
DSO
NED
E C
ON
NEC
TIO
N1,
002
1,74
148
.98
84.8
013
31
108.
81
2427
17SI
DI F
RE
DJ
SON
EDE
CO
NN
ECTI
ON
507
879
26.7
743
.32
71
125.
71
15
66
Subt
otal
1,50
92,
620
7612
820
32
113.
91
11
2933
23N
AB
EUL
SID
I HA
MM
EDSO
NED
E C
ON
NEC
TIO
N1,
310
1,63
250
.61
77.3
613
125.
51
1822
21Su
btot
al1,
310
1,63
251
7713
125.
51
1822
21JI
MLA
SON
EDE
CO
NN
ECTI
ON
239
264
8.97
13.0
13
188
.31
54
3R
OU
ISSA
T B
OU
GA
RM
INE
DEE
P TU
BE
WEL
L1,
147
1,27
050
.75
66.2
910
12
105.
81
210
63
Subt
otal
1,38
61,
534
6079
131
310
2.3
11
215
106
SMA
DA
HD
EEP
TUB
E W
ELL
1,04
51,
259
51.6
773
.39
174
74.1
12
2818
7TE
RG
ULE
CH
DEE
P TU
BE
WEL
L1,
151
1,38
646
.71
70.6
019
172
.91
1616
2Su
btot
al2,
196
2,64
598
144
365
73.5
22
4434
9EL
GA
RIA
SON
EDE
CO
NN
ECTI
ON
458
467
18.8
422
.99
766
.61
17
EL
GA
RR
AG
SON
EDE
CO
NN
ECTI
ON
1,41
21,
435
55.0
674
.14
720
5.1
11
45
7FA
TNA
SSA
SPR
ING
1,01
31,
030
46.3
460
.05
1193
.61
14
44
11Su
btot
al2,
883
2,93
212
015
725
117.
31
26
99
25C
HO
UA
OU
LAEX
TEN
TIO
N G
R2,
247
2,40
610
4.27
139.
3319
712
6.6
27
830
CO
MPL
EXE
AEP
DA
M12
,492
13,3
7048
2.05
571.
2765
2020
5.7
16
930
3090
Subt
otal
14,7
3915
,776
586
711
8427
187.
81
89
3738
120
CH
AA
MB
A -
O.E
I ASS
EL -
HM
AID
IAD
EEP
TUB
E W
ELL
661
661
27.6
933
.94
51
294
.41
97
41
500
M'H
AFD
HIA
- G
HR
AIS
SIA
SPR
ING
474
474
20.4
725
.55
767
.71
16
53
250
0Su
btot
al1,
135
1,13
548
5912
12
81.1
11
115
127
3C
HEL
ALG
AEX
TEN
TIO
N G
R1,
526
1,77
468
.73
91.9
820
388
.84
2020
720
GU
DIF
ETT
EXTE
NTI
ON
GR
1,21
01,
409
54.1
072
.14
82
176.
13
1010
35
HM
IDET
DEE
P TU
BE
WEL
L1,
609
1,87
566
.14
97.1
25
1593
.75
47
ZGA
INIA
EXTE
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GR
693
807
33.2
946
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134.
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33
Subt
otal
5,03
85,
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222
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610
8.6
741
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AY
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DEE
P TU
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L33
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732
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126
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500
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7,91
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271
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11
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ELL
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61,
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IJIA
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BE
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570
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otal
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811
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ATE
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RA
JMA
DEE
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BE
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747
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1000
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AA
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NED
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ON
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ZAH
RA
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NTI
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198
223
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03
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31
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btot
al3,
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3,63
511
412
911
321
3.8
126
55
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UED
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NED
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ON
NEC
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N31
941
816
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24.3
66
69.7
81
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HO
UA
ME
KH
- R
.EN
NA
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EBSO
NED
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ON
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294
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147.
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7.5
121
412
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GIU
IGU
IASO
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ON
NEC
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N47
862
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30.0
36
178
.39
13
TAR
F EL
LIL
SON
EDE
CO
NN
ECTI
ON
476
623
24.5
36.3
17
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36
Subt
otal
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04,
480
153
238
323
117.
91
509
25To
tal
53,8
4963
,168
2,32
03,
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430
2328
7112
4.1
1817
2843
329
433
928
AR
IAN
A
BEN
AR
OU
S
ZAG
HO
UA
N
BIZ
ERTE
BEJ
A
JEN
DO
UB
A
LE K
EF
KA
IRO
UA
N
GA
BES
MED
ENIN
E
KA
SSE
RIN
E
SID
I BO
UZI
D
MA
HD
IA
GA
FSA
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-21 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-22 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Table 6.1.3 Allowable and Design Water Intake
GOVERNORATEDELEGATION NAME OF SUBPROJECT Water SourcesAllowable
IntakeDesignIntake
(l/s) (l/s)ARIANA FAIDH EL AMRINE-SIDI GHRIB SONEDE 1.13 1.20ARIANA HMAIEM ESSOUFLA SONEDE 0.50 0.40ARIANA TYAYRA SONEDE 1.00 0.40BEN AROUS OULED BEN MILED and OULED SAAD SONEDE 2.00 2.00BEN AROUS SIDI FREDJ SONEDE 1.00 1.10NABEUL SIDI HAMMED SONEDE 2.00 2.00ZAGHOUAN JIMLA SONEDE 2.00 0.30ZAGHOUAN ROUISSAT BOUGARMINE Tube Well 7.00 1.60BIZERTE SMADAH Tube Well 14.00 1.50BIZERTE TERGULECH Tube Well 15.70 7.00BEJA EL GARIA SONEDE 1.00 0.30BEJA EL GARRAG SONEDE 2.00 1.70BEJA FATNASSA Spring 5.00 0.70JENDOUBA CHOUAOULA GR Extension 5.00 1.70JENDOUBA JOUAOUDA 1 / BATTAHA 9.20JENDOUBA MAALIM 3.00JENDOUBA OULED DHIFALLAH 3.00JENDOUBA SIDI SALAH* - - -LE KEF CHAAMBA - O.EI ASSEL - HMAIDIA Tube Well 1.80 0.60LE KEF M'HAFDHIA - GHRAISSIA Spring 2.00 0.60KAIROUAN CHELALGA GR Extension 11.00 1.50KAIROUAN GUDIFETT GR Extension 10.00 1.70KAIROUAN HMIDET Tube Well 12.00 2.10KAIROUAN ZGAINIA GR Extension 3.00 0.70KASSERINE DAAYSIA Tube Well 5.00 0.50KASSERINE HENCHIR TOUNSI Tube Well 13.50 1.70KASSERINE OUED LAGSAB Tube Well 4.50 0.90KASSERINE SIDI HARRATH - GOUASSEM Tube Well 22.00 1.30SIDI BOUZID AMAIRIA Tube Well 15.00 0.60SIDI BOUZID BLAHDIA Tube Well 7.00 1.70SIDI BOUZID BOUCHIHA Tube Well 6.00 3.00SIDI BOUZID MAHROUGA Tube Well 15.00 1.00MAHDIA COMPLEXE BOUSSLIM SONEDE 27.00 10.00MAHDIA COMPLEXE EL AITHA SONEDE 8.50 2.10GAFSA HENCHIR EDHOUAHER GR Extension 4.00 0.40GAFSA KHANGUET ZAMMOUR Tube Well 4.00 2.50GAFSA THLEIJIA Tube Well 4.00 2.50GABES BATEN TRAJMA Tube Well 0.20GABES CHAABET EJJAYER SONEDE 2.00 0.50GABES EZZAHRA GR Extension 1.50 0.20MEDENINE BOUGUEDDIMA SONEDE 4.50 0.60MEDENINE CHOUAMEKH - R. ENNAGUEB SONEDE 7.50 3.80MEDENINE ECHGIUIGUIA SONEDE 5.00 0.80MEDENINE TARF ELLIL SONEDE 3.50 1.00* Subproject is cancelled.
ComplexAEPBarbara
Barbara Dam 16.10
Tab
le 6
.1.4
L
ist o
f Dee
p T
ube
Wel
ls fo
r Pr
ojec
t 200
1W
ell
Long
itude
Latit
ude
Elev
atio
nCon
stru
cted
Dril
ling
Wel
lW
ell
Sree
n SW
LPW
LQ
DD
Spec
ific
Tra
ns-
Aqu
ifer
Test
pum
ping
Dril
ling
Allo
wab
leEl
evat
ion
in m
eter
s at
Pos
sibl
e Q
No.
Sub-
Proj
ect
Gov
erno
rate
(gra
de)
(gra
de)
date
Dep
thD
epth
Dia
mte
rpo
sitio
nC
apac
itym
issi
vity
hour
QG
roun
dSW
LPW
LA
llow
able
Scre
en(m
)(G
L-m
)(G
L-m
)(G
L-m
)(G
L-m
)(G
L-m
)(l/
s)(G
L-m
)(l/
s/m
)(m
2 /day
)(h
r)co
ntra
ctor
(l/s)
surf
ace
PWL
top
1173
4/2
Rou
issa
/ Bou
gaZa
ghou
an8°
40' 2
2"40
°52
' 48"
240
1996
/7/3
115
012
49"
-5/8
78.2
35.5
63.8
7.0
28.2
70.
2523
.7Sa
nd8
SOFO
RI
7.0
240.
020
4.5
176.
316
3.77
161.
8
1996
/8/3
011
2.6
(San
d St
one)
9316
/1Sm
adah
Biz
erte
7°83
' 90'
'40°
97' 5
0"36
019
99/8
/820
665
9"-5
/838
11.0
17.0
14.0
6.00
2.33
55.3
Lim
e St
one
6EM
ASO
NH
Y14
.036
0.0
349.
034
3.0
324
322.
0
1999
/9/1
865
9317
/1T
ergu
lech
Biz
erte
8°24
' 20'
'41°
00' 0
0"14
019
99/6
/23
5333
12"-
1/4
8.0
7.4
7.9
15.7
0.50
31.4
031
6.2
Lim
e St
one
60EM
ASO
NH
Y15
.714
0.0
132.
613
2.1
134
132.
0
1999
/8/6
30.0
6957
/3L
e K
ef7°
33' 2
5''3
9°93
' 10"
685
1997
/5/3
119
719
79"
-5/8
110
79.8
116.
91.
837
.13
0.05
1.6
Lim
e St
one
24R
.S.H
1.8
685.
060
5.2
568.
157
757
5.0
1998
/6/1
714
0/ M
arl
1966
6/4
Hm
diet
Kai
roua
n8°
35' 2
0''3
9°41
' 95"
170
1999
/1/2
226
821
69"
-5/8
159.
865
.878
.812
.013
.04
0.92
75.9
Sand
8SO
FOR
I12
.017
0.0
104.
291
.212
.210
.2
1999
/2/8
207.
1(S
and
Ston
e)
1963
1/4
Daa
ysia
Kas
seri
ne7°
26' 2
0''3
9°52
' 95"
920
-17
010
09"
-5/8
100
119
129.
05.
010
.00
0.50
49.4
Lim
e St
one
24E.
H.
5.0
920.
080
1.0
791.
082
282
0.0
-17
08"
-1/2
150
-K
asse
rine
7°22
' 10'
'39
°45'
50"
945
1999
/8/2
362
579"
-5/8
31.1
7.00
20.5
13.5
13.5
01.
0026
.7Li
me
Ston
e6
R.S
.H13
.594
5.0
938.
092
4.5
915.
991
3.9
1999
/9/1
138
.1
-K
asse
rine
6°79
' 60'
'38°
63' 0
0"71
0-
300
250
9"-5
/816
015
0.18
160.
74.
510
.50
0.43
24.9
Sand
24SO
FOR
I4.
571
0.0
559.
854
9.3
552
550.
0
-23
0(S
and
Ston
e)
-K
asse
rine
7°25
' 80'
'39°
14' 2
0"66
5-
270
140
9"-5
/860
53.5
56.0
22.0
2.50
8.8
-Sa
nd4
SOFO
RI
22.0
665.
061
1.5
609.
060
760
5.0
-11
0(S
and
Ston
e)
2038
9/5
Am
airia
Sidi
Bou
zid
7°80
' 90'
'38°
72' 5
0"36
219
96/1
1/19
280
225
13"-
3/8
225.
044
.097
.216
.053
.20
0.30
16.3
Lim
e St
one
8E.
Hyd
16.0
362.
031
8.0
264.
813
913
7.0
1997
/2/2
728
09"
-5/8
279.
0
1957
7/4
Bla
hdia
Sidi
Bou
zid
7°70
' 95'
'39°
27' 9
0"54
019
98/9
/18
716
673
9"-5
/862
1.0
158.
016
3.0
7.2
5.00
1.44
162.
6Sa
ndy
Mar
l24
SOFO
RI
7.2
540.
038
2.0
377.
0-7
9-8
1.0
1998
/8/1
267
3.0
2055
4/5
Bou
chih
aSi
di B
ouzi
d8°
39' 8
0''3
8°85
' 05"
200
1998
/12/
2745
043
79"
-5/8
350.
012
3.0
162.
86.
539
.80
0.16
15.6
Sand
24SO
FOR
I6.
520
0.0
77.0
37.2
-148
-150
.0
1999
/2/1
643
1.0
(San
d St
one)
2055
7/5
Mah
roug
aSi
di B
ouzi
d7°
79' 8
0''3
8°48
' 50"
330
1998
/2/1
830
016
49"
-5/8
75.1
55.0
61.0
20.0
6.00
3.3
191.
6Li
me
Ston
e14
SOFO
RI
20.0
330.
027
5.0
269.
025
6.9
254.
9
1999
/4/2
215
2.1
1939
3/5
Kha
ngue
t Zam
mou
rG
asfa
7°88
' 50'
'38°
20' 2
0"12
519
86/1
/132
053
.27
9"-5
/853
.343
.047
.03.
34.
000.
8-
Sand
& g
rave
l10
R.S
.H3.
312
5.0
82.0
78.0
73.7
371
.7
1986
/4/2
512
4.77
8"-5
/811
2.8
9624
/5Th
leiji
aG
asfa
7°52
' 80'
'38°
36' 1
0"37
719
68/2
/723
5.5
719"
-5/8
52.8
26.0
32.0
4.6
5.96
0.8
8.1
Sand
& g
rave
l8
R.S
.H4.
637
7.0
351.
034
5.0
326.
1732
4.2
1968
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068
.1
Bat
en T
rajim
aG
abes
Not
e:SW
L= S
tatic
Wat
er L
evel
, PW
L= P
umpi
ng W
ater
Lev
el, Q
= Q
uant
ity, D
D=
Dra
wdo
wn
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amba
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ssel
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adia
Sidi
Har
rath
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ouas
sem
Oue
d L
agsa
b
Hen
chir
Tou
nsi
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-23 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Pum
pG
ICR
elay
Boo
ster
Bre
akA
irD
rain
Sect
ion
Publ
icPo
tenc
ePu
blic
Filtr
atio
nD
isin
fect
ing
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tri-
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ast I
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mp
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p St
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essu
reV
alve
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e V
alve
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Con
nect
ion
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ion
Faci
lity
ficat
ion
mm
mun
itsun
itsun
itsm
3un
itsm
3 *hun
itsun
itsun
itsun
itsun
itsun
itsun
itsun
itsun
itsun
itsun
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itsFA
IDH
EL
AM
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E-SI
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HR
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6,77
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6,77
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57
HM
AIE
M E
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DE
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40
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41
12
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YR
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NE
DE
C.
3,46
70
3,46
72
86
43
1Su
btot
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011
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02
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911
111
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2717
131
11
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600
06,
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11
201
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67
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Subt
otal
17,1
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10
10
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129
3323
200
20
12
NA
BEU
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DI H
AM
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SON
ED
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018
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140
118
2221
131
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btot
al18
,484
018
,484
00
10
10
018
2221
130
00
11
JIM
LASO
NE
DE
C.
4,40
30
4,40
31
115
15
43
31
RO
UIS
SAT
BO
UG
AR
MIN
ED
EEP
WEL
L12
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012
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11
140
210
63
101
11
1Su
btot
al16
,715
016
,715
12
20
10
215
106
131
10
12
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DA
HD
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WEL
L17
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363
17,4
071
140
12
2818
717
21
TER
GU
LEC
HD
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WEL
L19
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019
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11
401
1616
219
11
1Su
btot
al37
,015
363
37,3
782
02
00
22
4434
936
03
02
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RIA
SON
ED
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798
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798
115
11
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EL G
AR
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DE
C.
10,0
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121
401
14
57
71
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TN
ASS
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G12
,017
012
,017
11
501
44
411
111
Subt
otal
26,8
270
26,8
271
03
02
06
99
2525
01
00
2C
HO
UA
OU
LAEX
TEN
TIO
N G
R21
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021
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150
27
830
195
1C
OM
PLEX
E A
EP B
AR
BA
R*D
AM
71,0
2330
2074
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11
100
69
3030
9065
131
11
401
50Su
btot
al92
,484
3020
95,5
041
04
08
09
3738
120
840
181
02
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AA
MB
A -
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I ASS
EL -
HM
AID
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P W
ELL
11,6
300
11,6
301
11
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101
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,950
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,950
12
20
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115
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20
32
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23,7
550
23,7
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190
10,1
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7,41
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7,41
11
11
207
53
51
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P W
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12,8
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12,8
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11
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91
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OU
ED L
AG
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7,82
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11
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19,5
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,672
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otal
73,5
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73,5
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01
11
10
3618
1359
310
01
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28
* T
he s
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ts o
f OU
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and
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erno
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are
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ne p
roje
ct n
amed
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plex
e A
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BA
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bec
ause
the
thre
e su
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are
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cted
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ERTE
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Tab
le 6
.2.1
Maj
or C
onst
ruct
ion
Faci
litie
s
KA
SSER
INE
SID
I BO
UZI
D
MA
HD
IA
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A
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DO
UB
A
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EF
Pipe
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e Le
ngth
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erno
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Subp
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ead
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ir
MED
ENIN
E
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FSA
Wat
er S
ourc
e
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-24 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-25 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Table 6.3.1 Table of Contents on DGGR model Tender Document
I. Tender Information and Contract ConditionsChapter I: General
Article 1: Objective of the Tender Article 2: Definitions
Chapter II: Procedures for Contract Signing Article 3: Documents composing the Tender Article 4: Appearance of the Offers Article 5: Schedule of the Tender Article 6: Criteria for judging the Offers Article 7: Acknowledge on the localization and working conditions Article 8: Technical and financial memory on the works Article 9: Provisional bond Article 10: Validity of the Offers
Chapter III: Requirement for executing the contracts Article 1: Objective of the Contract Article 2: Amount of the Contract Article 3: Provisional acceptance Article 4: Organization of the construction site Article 5: Place of delivery for the equipment Article 6: Work implementation documents Article 7: Delivery time and acceptance of equipment Article 8: Implementation period of the works Article 9: Subcontracting Article 10: Overall equipment and works Article 11: Labor and security of the works Article 12: Controlled expenditure works Article 13: Period of guarantee Article 14: Final acceptance Article 15: Type of price Article 16: Method of payment Article 17: Performance bond Article 18: Retention of guarantee Article 19: Penalties Article 20: Insurance Article 21: Case of force majeure Article 22: Rejection of the Contract Article 23: Arbitration Article 24: Deed of security for debt Article 25: Stamp and registration Article 26: Taxes and references Article 27: Contract documents Article 28: Contract validity Appendix: Form of tender for the Package
II. Technical Specifications Chapter I : Supply of the Pipes, special hydraulic joint parts and cocks and fittings
Chapter II : Piping and special parts laying works and construction of standard worksChapter III :Civil engineering works
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-26 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
0 500 200015001000
Legend
BF 6
SONEDECONNEXION 2
BF 1
372
373
374
375
377
376
508507 510509
SONEDECONNEXION 1
BF 5
BF 7
BF 2
BF 3
BF 4
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 1/41 (Faidh El Amrine-Sidi Ghrib)
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Water Source
Reservoir
Water Point
Pipeline
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-27 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
0 500 200015001000
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BF 2
BF 1
374
375
376
377
379
378
380
508507 5105098.50gr
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 2/42 (Hmaiem Essoufla)
Water Source
Reservoir
Water Point
Pipeline
SONEDECONNECTION 1
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-28 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
0 500 200015001000
Legend
391
513512511 515514
392
393
394
396
395
BF 2
BF 3
BF 1
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 3/41 (Tyayra)
Water Source
Reservoir
Water Point
Pipeline
SONEDECONNECTION 1 SONEDE
CONNECTION 2
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-29 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
0 500 200015001000
Legend
BF 6
361
363
364
362
538537 540539
SONEDECONNECTION
BF 5
BF 7BF 2
BF 3
BF 1
BF 4
BACHE DEREPRISE
360
RESERVOIR
BF 8
BF 9
BF 10
BF 11
BF 12
BF 13BF 14
BF 15
EXISTINGRESERVOIR
BF 16
365
BF 17
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 4/41 (Ouled Ben Miled and Ouled Saad)
Water Source
Reservoir
Water Point
Pipeline
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-30 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
0 500 200015001000
Legend
BF 6
369
368
371
372
370
538537 540539
BF 5
BF 7
BF 2
BF 3
BF 1
BF 4
367
40.45gr
10D20'
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 5/41 (Sidi Fredj)
Water Source
Reservoir
Water Point
Pipeline
SONEDECONNECTION
BACHE DEREPRISE
RESERVOIR
BACHE DEREPRISE
SONEDECONNECTION
BACHE DEREPRISE
RESERVOIR
BACHE DEREPRISE
SONEDECONNECTION
BACHE DEREPRISE
RESERVOIR
BACHE DEREPRISE
RESERVOIR
BACHE DEREPRISE
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
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Legend
BF 6
347
346
349
350
348
556555 558557
BF 5
BF 7
BF 2BF 3
BF 1
BF 10
BF 8
BF 4
BF 9
BF 13
BF 12
BF 11
345
40.45gr
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 6/41 (Sidi Hammed)
SONEDECONNECTION
BACHE DEREPRISE
RESERVOIR
Water Source
Reservoir
Water Point
Pipeline
SONEDECONNECTION
BACHE DEREPRISE
RESERVOIR
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-32 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 3
BF 2
BF 4
BF 1
50000
Legend
25000
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 7/41 (Jimla)
Water Source
Reservoir
Water Point
Pipeline
RESERVOIR
BACHE DEREPRISE
SONEDECONNECTION
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-33 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Figure 6.1.1Subproject Outline 8/41 (Rouissat Bougarmine)
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-34 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 6
BF 5
BF 7
BF 2
BF 3
BF 1
BF 10
BF 8
BF 4
BF 9
BF 13BF 12BF 11
BF 14BF 16
BF 15
BF 17
BF 18
BF 19
BF 20
BF 21
1000 300020000 4000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 9/41 (Smadah)
DEEP WELL
Water Source
Reservoir
Water Point
Pipeline
LegendLegend
RESERVOIR
DEEP WELL
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-35 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 6BF 5
BF 7
BF 2
BF 3
BF 1
BF 10
BF 8
BF 4
BF 9
BF 13BF 12BF 11
RESERVOIR
BF 14BF 16
BF 15
BF 17BF 18
BF 19
0 1000 400030002000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 10/41 (Terguleche)
Water Source
Reservoir
Water Point
Pipeline
Legend
DEEP WELLDEEP WELL
SCHOOL
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-36 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
0 500 200015001000
BF 6
361
363
364
362
424423 426425
BF 5
BF 7
BF 2BF 3
BF 1
BF 4
360
EXISTINGRESERVOIR
365
36d45'
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 11/41 (El Garia)
Water Source
Reservoir
Water Point
Pipeline
Legend
SONEDECONNECTION 1
SONEDECONNECTION 2
SONEDECONNECTION 1
SONEDECONNECTION 2
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-37 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 6
BF 5
BF 7
BF 2
BF 3
BF 1
BF 4
RESERVOIR
BF 10
BF 9
BF 8
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 12/41 (El Garrag)
LegendLegendLegend
Water Source
Reservoir
Water Point
Pipeline
SONEDECONNECTION
SCHOOL
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-38 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 6
BF 5
BF 2
BF 3
BF 1
BF 4EXISTINGRESERVOIR
BF 10 BF 9
BF 8
BF 7
0 1000 400030002000
RESERVOIR
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 13/41 (Fatnassa)
Water Source
Reservoir
Water Point
Pipeline
Legend
Water Source
Reservoir
Water Point
Pipeline
Legend
SPRINGWATER
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-39 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 14/41 (Chouaoula)
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-40 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 15/41 (Complexe AEP Barbara-Battaha)
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-41 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 15/41 (Complexe AEP Barbara-Ouled Dhifallah)
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-42 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 15/41 (Complexe AEP Barbara-Maalim)
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-43 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 3
BF 2
POTANCE 1
BF 1
RESERVOIR
BF 4
0 2000500 15001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 16/41 (Chaamba-O.El Assel-Hmaidia)
Water Source
Reservoir
Water Point
Pipeline
Legend
DISPENSARY
SCHOOL
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-44 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 17/41 (M'hafdhia Ghraissia)
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-45 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
28
BF 3BF 2
BF 4
BF 1
266
BF10
BF 9
BF 8
BF 7BF 6BF 4
BF 5
BF11
RESERVOIR
268
262
264
258
260
3032 2426
0 40001000 30002000
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 18/41 (Chelalga)
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Water Source
Reservoir
Water Point
Pipeline
LegendLegend
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-46 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 3
BF 2
BF 1
261
BF 6 BF 7
BF 4
BF 5
RESERVOIR
262
259
260
257
258
454
MOSQUE
453452451
2560 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 19/41 (Gudifett)
Water Source
Reservoir
Water Point
Pipeline
Legend
SCHOOL
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-47 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 20/41 (Hmidet)
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-48 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 3
BF 2
BF 1
BF 6
BF 4
BF 5
500 2000150010000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 21/41 (Zgainia)
Water Source
Reservoir
Water Point
Pipeline
Legend
SONEDECONNECTION
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-49 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 1
BF 3
BF 2BF 4
BF 5RESERVOIR
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 22/41 (Daaysia)
Water Source
Reservoir
Water Point
Pipeline
Legend
DEEP WELL
EXISTINGDEEP WELL
EXISTINGRESERVOIR
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-50 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 1
BF 7
BF 8
RESERVOIR
BF 2
BF 4BF 3
BF 5
BF 6
BF 10
BF 9
BF 11
BF 12
BF 13
484483 486485
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 23/41 (Henchir Tounsi)
Water Source
Reservoir
Water Point
Pipeline
Legend
EXISTINGRESERVOIR
DEEP WELL
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-51 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
P 1
RESERVOIR
BF 1
BF 3
P 2
BF 4
BF 2
450449 452451
P 3
3846
3848
3847
3845
3850
3849
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 24/41 (Ouled Lagsab)
Water Source
Reservoir
Water Point
Pipeline
Legend
DEEP WELL
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-52 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
RESERVOIR
BF 1
BF 3
BF 2
487486 489488
BF 4BF 3
BF 5
BF 6
BF 7
BF 8
BF 9
BF 10BF MOSQUE
BF 11
BF MOSQUE
490
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 25/41 (Gouassem Sidi Harrath)
Water Source
Reservoir
Water Point
Pipeline
Legend
DEEP WELL
BF SCHOOL
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-53 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
P 1
RESERVOIR
P 2
170
172
171
169
174
173
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 26/41 (Amairia)
DEEP WELL
Legend
Water Source
Reservoir
Water Point
Pipeline
Final Report Vol.1 Main Report Chapter 6 Detailed Design of Rural Water Supply Project
NIPPON KOEI 6-54 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
RESERVOIR
BF 1
3910
BF 3
BF 2
BF 4
BF 5
BF 6
BF 8
BF 7
BF 9 BF 10
BF 11
3906
3907
3908
3909
3905
521 524523522
BF 12
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 27/41 (Blahdia)
Water Source
Reservoir
Water Point
Pipeline
Legend
DEEP WELL
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NIPPON KOEI 6-55 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
RESERVOIR
BF 1P1
BF 2
BF 4
BF 5
BF 6BF 8
BF 9
BF 7
577 580579578
BF 3
P 2
MOSQUE
0 500 200015001000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 28/41 (Bouchiha)
Water Source
Reservoir
Water Point
Pipeline
DEEP WELL
SCHOOL
Legend
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RESERVOIR
BF 1
BF 2
BF 4 BF 5
BF 6
P 1
BF 7
3822
BF 3
3822
3826
3824
0 1000 30002000
3826
3830
3828
3832
3000 4000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 29/41 (Mahrouga)
Water Source
Reservoir
Water Point
Pipeline
Legend
DEEP WELL
EXISTINGRESERVOIR
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BF 1
BF 2
BF 4
BF 5
BF 6
BF 7
BF 3
0 1000 30002000
BF 9
BF 8
BF 10
BF 13
BF 12
BF 11
BF 14
BF 15
BF 17
BF 16
4000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 30/41 (Complexe Aitha)
SONEDECONNECTION
Legend
Water Source
Reservoir
Water Point
Pipeline
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BF 1
BF 2
BF 4BF 5
BF 6BF 7
BF 3
BACHE DEREPRISE
0 1000 30002000
BF 9
BF 8
BF 10
BF 13BF 12
BF 11BF 14
BF 15
BF 17
BF 16
BF 23BF 22
BF 21
BF 20 BF 19
BF 18
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BF 31
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BF 38
BF 36
BF 41
BF 42BF 43
RESERVOIR
4000
BF 44
BF 45
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 31/41 (Complexe Bouslim)
Water Source
Reservoir
Water Point
Pipeline
Legend
SONEDECONNECTION
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RESERVOIR
P 1
P 2
484483 486485
BACHE DEREPRISE
500 2000150010000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 32/41 (Henchir Dhouaher)
BF 1EXISTING
SCHOOL
EXISTINGP 1
Water Source
Reservoir
Water Point
Pipeline
Legend
DEEP WELL
EXISTINGP 2
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0 500 200015001000
BF 63800
535534 536
BF 5BF 7
BF 2
BF 3
BF 1
BF 4
3798
RESERVOIR
537
3802
3804
3801
3804
3803
POTANCE 3POTANCE 1
POTANCE 4POTANCE 2
MOSQUE
MOSQUE
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 33/41 (Khanguet Zammour)
Water Source
Reservoir
Water Point
Pipeline
LegendDEEP WELL
SCHOOL
DISPENSARY
SCHOOL
LegendDEEP WELL
SCHOOL
DISPENSARY
SCHOOL
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The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 34/41 (Thlleijia)
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NIPPON KOEI 6-62 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
BF 3
POTANCE 2
BF 1
8G60'
BF 2
POTANCE 3
BF 4
POTANCE 1
RESERVOIR
0 1000 400030002000
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 35/41 (Baten Trajima)
DEEP WELL
Legend
Water Source
Reservoir
Water Point
Pipeline
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0 500 200015001000
40
509508 510
BF 3
BF 2
39
511
BF 4
BF 1
42
41
43
44
8G50'
37G40'
SURPRESSEUR
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 36/41 (Chaabat Ejjayyar)
Water Source
Reservoir
Water Point
Pipeline
Legend
SONEDECONNECTION
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0 500 200015001000
BF 2
BF 3
BF 1
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 37/41 (Ezzahra)
Water Source
Reservoir
Water Point
Pipeline
Legend
SONEDECONNECTION
SCHOOL
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0 500 200015001000
BF 3
BF 2
BF 1
BF 4
BF 6
BF 5
326
321
322
323
324
325
574571 572 573The Detailed Design Study on The Rural Water
Supply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 38/41 (Bougeddima)
Water Source
Reservoir
Water Point
Pipeline
Legend
DEEP WELL
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0 500 200015001000
BF 3
BF 2
BF 1
BF 4
POTANCE 1
BF 5
BF 6
BF 10
BF 9 BF 8 BF 7
BF 10
POTANCE 3
POTANCE 2
RESERVOIR
BACHE DEREPRISE
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 39/41 (Chouamekh)
SONEDECONNECTION 1
SONEDECONNECTION 2
Water Source
Reservoir
Water Point
Pipeline
Legend
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0 500 200015001000
BF 3
BF 2
BF 1
BF 4
37
POTANCE 1
BF 6
BF 5
37
34
32
35
36
33
31
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 40/41 (Echgiuiguia)
Water Source
Reservoir
Water Point
Pipeline
Legend
SONEDECONNECTION
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0 500 200015001000
BF 3
BF 2
BF 1
BF 4
POTANCE 1
BF 5
BF 6
BF 7
The Detailed Design Study on The Rural WaterSupply Project in the Rupublic of Tunisia
Japan International Cooperation Agency
Figure 6.1.1Subproject Outline 41/41 (Tarf Ellil)
SONEDECONNECTION 1 Water Source
Reservoir
Water Point
Pipeline
LegendSONEDECONNECTION 2 SONEDE
CONNECTION 1
LegendSONEDECONNECTION 2
ELEVATEDTANK
Final Report Vol.1 Main Report Chapter 7 Cost Estimates
NIPPON KOEI 7-1 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
CHAPTER 7 COST ESTIMATES
7.1 Detailed Construction Costs
The detailed construction costs in the detailed design stage may be classified as
follows in accordance with the B/Q of tender document:
(1) Procurement of pipes and special parts,
(2) Installation and equipment of pipe networks,
(3) Civil works, and
(4) Procurement and installation of hydro-mechanical and electrical equipment.
7.1.1 Construction Quantity
The construction quantity to be used in cost estimation is determined in the
detailed design. Concerning the pipe networks, the length of PEHD and other
kind of pipes, number of special pieces and valves and the volume of excavation,
sand bed, back-filling, etc., for civil works are estimated based on the detailed
design drawings and standard drawings. Concerning the water reservoir, overhead
tank, relay pumping station and break pressure, the volume of excavation,
foundation, concrete, reinforced concrete and etc. are estimated and added up. The
water supply facilities of public tap and gallows are estimated by unit.
7.1.2 Unit Cost
The DGGR prepares the average costs and prices of procurement of equipment
and civil works based on the actual contract of the rural water supply project
(about 2 years ago) of the whole country and send it to the CRDA. The unit cost
of civil works and the price of equipment are decided by CRDA based on the
DGGR price list, actual results of many past and similar projects and site
conditions.
7.1.3 Construction Cost
The construction costs are estimated based on the quantities and unit costs and
classified according to the B/Q of tender document. The standard form of cost
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NIPPON KOEI 7-2 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
estimation is shown as Table 7.1.1.
7.2 Project Cost Component
The Project cost is composed of the following items:
7.2.1 Construction Cost
The Direct Construction costs correspond to the expenses necessary to realize the
subprojects and are estimated in the detailed design according to the subprojects.
7.2.2 Equipment Cost for Project Implementation
The procurement of vehicle, copy machine and inspection instruments are
necessary for the project implementation. The cost is estimated at the same cost of
the agreement between DGGR and JBIC.
7.2.3 Administration Expense
The administration expenses for the executing agency is required for the project
implementation. CRDA may pay the necessary expenses from their own budget.
The cost is not included in this estimation.
7.2.4 Engineering Service Expense
The cost of the required consulting services for the implementation of the project
is estimated at the same cost of the agreement between DGGR and JBIC.
7.2.5 Physical Contingency
The detailed figures of the subproject are determined in the detailed design study.
Therefore, the price contingency is not estimated.
7.2.6 Price Contingency
After the detailed design study, the construction work of the subproject is to be
implemented soon. Therefore, the price contingency is not estimated.
Final Report Vol.1 Main Report Chapter 7 Cost Estimates
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7.2.7 Tax
The tax of the construction is estimated at 18% of direct construction cost. The tax
of the imported equipment (mainly vehicle) is estimated at 100% of equipment
cost.
7.3 Construction Cost
Total construction cost of the Project 2001 estimated applying to the above
conditions is shown in below.
Total Construction Cost
Item Estimated Cost (1,000DT)
Equivalent to Yen (Million Yen)
1. Construction Cost 15,712.7 1,302.8 2. Procurement 1,103.9 91.5 3. Engineering Fee 4,493.5 372.6 4. Tax 2,828.3 1,234.5
Total Cost 24,138.4 2,001.4
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Table 7.1.1 Standard Form of Cost Estimation (1/2)
No. Designations Unit Quantity UnitCost
Amount withoutTaxes
I Procurement and transportation cost of pipes and special pieces 1-1 PEHD pipe PN10 DE90 ml 1-2 PEHD pipe PN16 DE90 ml 1-3 Tee 1-3-1 CI Tee with 3 flanges DN90/60/90 U 1-3-2 PEHD Tee EF Joint DE90/75/90 U 1-4 PEHD Reduction 1-4-1 DE110/75 U 1-5 Stop valve 1-5-1 DN100 U 1-5-2 DN75 U 1-6 Air valve 1-6-1 Simple U 1-6-2 Double U Sub-total (I)II Installation and equipment of pipe networks1 Earth works 1-1 Excavation m3 1-2 Back-filling m32 Transport 2-1 PEHD ml 2-2 Special pieces lump3 Laying of pipe and special pieces 3-1 PEHD 3-1-1 DE90 PN10 ml 3-1-2 DE90 PN16 ml 3-2 Sand bed m3 3-3 Air valve with stop valve and special p. 3-3-1 Simple U 3-3-2 Double U 3-4 Blow-off with stop valve and special p. 3-4-1 DN 80 U4 Concrete, steel and mortar works 4-1 Reinforcement concrete works (B5) incl. iron bar, shuttering work
and etc. for air valve box and blow-off boxm3
4-2 Mortar works m2 4-3 Steel ladder for blow-off box U5 Distribution works 5-1 Public tap U 5-2 Gallows U6 SONEDE/ GR connection work U
Sub-total (II)III Civil worksIII-1 Construction of one reservoir (100m3) and two break pressures (8m3)1 Earth works 1-1 Excavation m3 1-2 Back-filling m32 Concrete works 2-1 Preparation concrete (B1) m3 2-2 Reinforcement concrete (B5) incl. iron bar, shuttering, shooting and etc. m3 2-3 Water proofed mortar m23 Metal works with accessories including procurement, transport and installation 3-1 Ventilation U 3-2 Ladder U 3-3 Manhole cover U
Final Report Vol.1 Main Report Chapter 7 Cost Estimates
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Table 7.1.1 Standard Form of Cost Estimation (2/2)
No. Designations Unit Quantity UnitCost
Amount withoutTaxes
4 Equipment of special pieces including procurement, transport and installation 4-1 Floating valve 4-1-1 DN100 U 4-1-2 DN60 U 4-2 Stop valve 4-2-1 DN150 U 4-2-2 DN100 U 4-3 Bend 4-3-1 CI bend 1/4 DN 100 U 4-3-2 CI bend 1/8 DN 100 U 4-4 Strainer of bronze DN100 U 4-5 Reduction 4-5-1 DN150/DE160 U 4-5-2 DN80/DE90 U
Sub-total (III-1)III-2 Construction of pumping station1 Earth works 1-1 Excavation and backfilling m32 Concrete works 2-1 Preparation concrete (B1) incl. m3 2-2 Reinforcement concrete (B5) incl. m3 2-3 Brick works m2 2-4 Mortar m2 2-5 Painting m23 Metal works 3-1 Metal door, 2.1m/0.9m U 3-2 Metal sash, 1.2m/0.9m U
Sub-total (III-2)Sub-total (III)
IV Hydro-mechanical and electrical works1 Pump facility 1-1 Electric pump (Q=8m3/h, Hmt=150m) U 1-2 Hydro-mechanical equipment 1-2-1 Stop valve U 1-2-2 Check valve U 1-2-3 Manometer U 1-2-4 Water meter U 1-2-5 GIC suction pipe DN65, 3m long with 2 flanges U 1-2-6 Tee, bend, joint and etc. U 1-2-7 Drain pipe and etc. U2 Chlorination with electric pump 2-1 Injection pump (3 l/h) U 2-2 PVC pipe and pieces 2-2-1 PVC valve, dia.1/2" U 2-2-2 PVC tank, 40 l U3 Electric equipment 3-1 Control panel U 3-2 Submergible cable ml 3-3 Lead cable ml 3-4 Transformer 25KVA U 3-5 Transmission Line ml 3-6 Radio U 3-7 Pilot cable ml4 Spear pump U
Sub-total (IV)V Total (I~IV)VI Tax
Grand Total
Final Reprot Vol.1 Main Report Chapter 8 Implementation Plan
NIPPON KOEI 8-1 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
CHAPTER 8 IMPLEMENTATION PLAN
8.1 Implementing Agency
The Implementation Agency of the Project 2000 and 2001 is Directorate General
of Rural Engineering (DGGR), Ministry of Agriculture, which is responsible for
the management of the Project including loan appraisal, loan agreement and
overall management of the Project. DGGR functions as the technical and
financial administrative organization for the implementation of the subproject.
The Implementation Agency of each subproject is the Regional Office of
Agricultural Development (CRDA) of Governorate. The Division of Rural
Engineering (AGR) and the Direction of Hydraulics and Rural Equipment
(DHER) are in charge of the implementation works under CRDA.
A Japanese Consultant is employed and will assist DGGR in order to implement
the Project smoothly.
8.2 Financial Source
The construction cost of rural water supply subprojects will be financed by JBIC
(Japan Bank for International Cooperation). The taxes of construction costs,
administration costs of each CRDA and hiring fee of local consultants for
construction supervision will be covered by Tunisian national budget.
8.3 Contract Package
The Contract of the subproject will be basically divided into the following
packages:
(1) Procurement and installation of pipe networks and civil works
(2) Hydro-mechanical and electrical works
(3) Electrical works of outside line (by STEG)
Final Reprot Vol.1 Main Report Chapter 8 Implementation Plan
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8.4 Implementation Schedule
The schedule of the Project 2001 is planned as follows:
(1) Tender procedure : 2001/03/01~2001/09/30
(2) Execution of Works : From 2001/07/01
(3) Final inspection of Works : Finishes on 2003/08/31
(*source : JBIC SAPROF report, March 1999)
The subproject is to be implemented following the above period according to the
scale of its works. Necessary work period of each subproject is estimated around
3~12 months, and all subprojects will be completed within two years from the
commencement of the work.
Final Report Vol.1 Main Report Chapter 9 Sensitization Work
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CHAPTER 9 SENSITIZATION WORK
9.1 Objectives
As for the former rural water supply project, water tariff was not collected well so
that many projects financial balance were in the red. To improve such a situation,
the sensitization program was introduced since 1996. The program explained the
beneficiary’s duties about project planning and responsibilities. The objectives
of the sensitization work are as follows:
(1) To explain the project effects for the beneficiaries,
(2) To persuade the beneficiaries into the project planning,
(3) To explain the beneficiaries duties, and
(4) To get agreement about the project implementation from more than 80% of
the total beneficiaries.
DGGR owns the sensitization manual, therefore, the work was also carried out to
follow the existing manual.
In this present Study, the first phase of the sensitization program will be
performed over three visits per group of households and will be devoted to
formulate the concept of the project, adapting the needs and hope of the
prospected beneficiaries as much as possible and ensure the optimum conditions
of success for the water supply project. During these visits, information, meeting
and sensitization sessions with the beneficiaries will be organized in co-ordination
with the sections concerned with the regional implementation of rural water
supply projects, namely AGR of CRDA.
The following items are activities and field observations recorded in the three
visits.
9.2 First visit Sensitization Work
The first visit follows the preliminary phase and starts with the detailed survey for
the design of the water supply system. It is essentially centered on the following
themes:
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(1) Inconveniences of the Present Water Supply Methods
This is an introductory topic to help prospective users to identify and analyze
problems with the present water supply, enhancing their motivation toward the
project. Open-ended questions were made to prospective users such as “how
many times a day do you fetch water?” “how do you find water quality you use
actually?”, “what is inconvenient for you?”. This identification of present
unfavorable situation facilitates an explanation on the advantages of the new water
supply system to be followed.
In the subprojects of Gafsa, Gabes and Medenine, large-sized pictures describing a
water drop was presented to the participants, which seemed to play an initial role
to draw interest of the target population in the water supply itself.
(2) Introduction of the Advantages of the New Water Supply System
The sensitization experts explained to the beneficiary that the new water supply
system has the following advantages to compare with the present one.
1) The new water supply system can reduce the transportation distance.
2) The new water supply system can keep the stable water quality.
3) The new water supply system can provide better hygienic condition than
the present one.
Simple drawing representing components of water supply system such as deep
tube well, pipeline, water storage tank and communal taps were presented to
participants in most of the subprojects. It was explained that the present water
supply system aimed at facilitation of access to safe and stable water.
At this moment, request on individual water supply was frequently made, which
required sociologists to repeat explanation on objective of the present project
patiently.
Through the first visit of sensitization work, it was found that the beneficiaries of
the Marthoum-Maja subproject in Kasserine requested the water for irrigation
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purposes; so the project was cancelled and replaced by Henchir Tounsi subproject.
Also, it was found that the project area of Sidi Sarah subproject in Jendouba was
covered by another project and the proposed alternative one was larger than Sidi
Sarah; the subproject was finally cancelled.
(3) Management Principles of the Projected Water Supply System
After explaining the advantages of the project, principles necessary to maintain
such advantages were introduced. Such principles include energy, personnel
expenses, and O&M. This explanation was thoroughly made in the second visit,
and in the first visit this topic was presented to initiate prospective users into the
role of GIC and participation required to them.
(4) Initial Confirmation on the Nature, Number and Location of Service Points
This is first implication of prospective user’s important objectives in integrating
their opinions in the determination of the location, nature and number of water
service points before discussion on subproject design between the AGR of CRDA,
the local consultant firms and the JICA Study Team.
In the subprojects of Gafsa, Gabes, and Medenine, just after the sensitization
meeting, participants took a walk in their localities with sociologists and engineers
of the local consultant firm to indicate their expected water service points.
The first visit plays a key role to promote prospective users’ interest in:
sensitization meetings to be followed, though this visit is made just to provide
general information on the Project. Therefore, establishment of contact with
participants, especially resource inhabitants, relay-persons selected among the
population by the sociologist to spread the information on the Project to
prospective users not touched by the sensitization work in the locality, is
fundamental to conduct the next stage following the sensitization meetings
smoothly and efficiently.
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NIPPON KOEI 9-4 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
9.3 Second visit Sensitization Work
The second visit of sensitization starts with the confirmation of the project
components determined provisionally through the detailed survey. It is normally
carried out a little bit ahead of the topographical surveys to allow acceptable
changes detected through the sensitization work. It is mainly centered on the
following themes.
(1) Introduction of the layout of the water supply system and the location of
service points, and
(2) Re-explanation on the method of service and type of service points
(communal tap, ‘’potence’’, individual connection)
The elaborated layout of water supply system through the Study was shown and
participants were asked to give their opinions to the layout shown in large sized
paper in the second visit, which was presented firstly to inform them of the result
of discussion between the AGR of CRDA, the local consultant firm and the JICA
Study Team. Prospective users’ needs on additional communal taps in their
localities or change of service points provisionally decided in the first visit were
also confirmed.
This is important part of the second visit to make understood the way their
opinions are considered in the determination of the location, nature and number of
service points, so that prospective users’ may find the water supply system their
own property, namely consciousness of ownership. Opinions collected during
the second visit were communicated to engineers after the sensitization meetings.
The discussion was relatively active in most of the subprojects observed by the
JICA Study Team. In Faidh el Amrine–Sidi Ghrib subproject in Ariana,
participants of the sensitization meetings made a request to the sociologist to
change a water service point to a more centered point of their locality after
discussion on the presented layout network.
(3) Method of Cost Recovery (metered charge or fixed rate)
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Following the introductory explanation made in the first visit, the theme on the
necessity of cost recovery is deepened. Posters prepared by DGGR describing
relation between cost recovery and sustainable function of the water supply
system was used to make necessity of payment more comprehensible.
Metered charge was recommended rather than a fixed rate as a more equal method
for all prospective users and as a way to reduce the spilling of water at communal
tap.
(4) Selection of Potential Tap Keepers
Once location and number of service points were confirmed, the sensitization
meeting progressed to the next theme, which was the selection of tap keepers for
projected water service points.
As a general tendency observed during the Study, men have more access to
candidacy of this role than women. In the subprojects of Gafsa, Gabes and
Medenine, all prospective tap keepers were men selected in the meetings for men,
and women were just informed of the selection of these tap keepers during their
meeting held separately.
(5) Necessity to Organize into Water Users’ Groups (GIC) and Initiative to
Introduce a Request to Establish a GIC
Role, function of GIC and required participation were explained as preparatory
procedure for the next sensitization stage. At the same time, the content of
contract for revolving fund was reminded to get prospective users well prepared to
sign contracts during the next visit, namely third visit.
(6) Specific Items of Sensitization Identified during the Socio-economic Survey
Introduction of theme on public hygiene was observed. Explanation of causes
and effects and prevention from pollution was initiated.
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NIPPON KOEI 9-6 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
9.4 Third visit Sensitization Work
According to the methodology of the Study on the rural water supply project
applied by DGGR, the third visit of the sensitization work could start after the
approval of the proposed water charge per cubic meter of supplied water by
CRDA. Since the JICA Study Team undertakes the Study under the technical
co-operation between Tunisia and Japan, it can be considered in general that the
JICA Study Team has the duty to approve it under the co-operation of each CRDA.
Considering the future responsibility of CRDA on each subproject, the JICA Study
Team requested each CRDA to approve the water charge to be applied to future
GICs under the Project. However, as waiting for the approval of CRDA
reportedly takes a long time, the third visit cannot start in line with the given
schedule by JICA. The JICA Study Team therefore discussed with DGGR to
tentatively modify the methodology on the third visit. As a result of it, the third
visit could start around August 20, 2000 by informing the proposed water charge
per cubic meter of supplied water verbally to the population and confirm the
intention of the commitment to GIC. After having the approval of the charge by
CRDA, sociologists of the local consultant firms have to visit again to get written
contract. The following topics were introduced during the visit.
(1) Proposed Unit Cost of One Cubic Meter of Water
The result of technical study was explained step by step: technical data such as
total length of pipeline first, then necessary investment cost for the whole water
supply system to be realized and re-explanation was made on the necessity of
payment, namely cost for energy (payment to SONEDE or STEG), personnel
expenses and cost for O&M using flip chart.
(2) Proposed Amount of the Contribution to the Revolving Fund
The significance of the revolving fund was reminded to the prospective
beneficiaries, namely fund for the effective starts of the GIC. However, although
the target population had understood the significance of revolving fund, their
intention was not always favorable. For instance, in Chouamekh subproject in
Final Report Vol.1 Main Report Chapter 9 Sensitization Work
NIPPON KOEI 9-7 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
Medenine, participants in the sensitization meeting were not satisfied with the
amount of revolving fund informed, which seemed expensive for them to collect
from the total of targeted families. Then they requested to lower the cost. In
Ghraissia subproject in Le Kef, the population of one locality showed reluctance
to commit to the GIC, because they were not satisfied with the result of the F/S
that the water service point provisionally chosen was technically impossible to be
installed according to the confirmed topographical conditions for gravitational
distribution.
However, contracts collected through the third visit showed a commitment rate of
prospective head of beneficiary families of over 80% for each subproject,
confirming the social feasibility of the subprojects (please refer to Table 9.4.1).
9.5 Field Observation on the Sensitization Works
(1) Insufficient Participation Rate of Prospective Users
According to the minutes of meeting, the number of prospective users was not
sufficient in relation to the total family number of prospective families in some of
the subprojects (please refer to Table 9.4.1). As cited below, insufficient
preparation or lack of consideration on favorable conditions on sociologists’
obligations can be listed as major causes of this insufficiency in participation rate
of the target population. In some 1st sensitization works, average participants of
male and female are 94 persons and 44 persons respectively. It is because of the
following reasons:
1) Market days and/or field harvest days, important days for the target
communities were selected,
2) Meetings were not sufficiently advertised to the target population by
local authorities, and
3) Meetings places were not prepared in advance. Some sociologists of the
local consultant firms started to look for meeting places on the spot.
The poor mobilization of the target population may not ensure optimum
Final Report Vol.1 Main Report Chapter 9 Sensitization Work
NIPPON KOEI 9-8 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
conditions of success for the water supply project. The Study team requested for
the local authorities to promote the sensitization program. As a result, average
participants of the second meeting increased approximately 40~50% from the first
meeting, the average number of male and female is 131 persons and 67 persons
respectively.
(2) Lack of Involvement of Prospective Beneficiaries in the Planning of the
Project Water Supply System
In some meetings, as mentioned earlier, an active involvement of the beneficiaries
was observed in the determination of the position, number and nature of service
points and pipeline route. On the contrary, in other cases, prospective
beneficiaries were not sufficiently and directly involved; this participation was
often a mere passive activity limited to receiving only the outline of the project
from the sociologist, so the beneficiaries real aspirations and needs may fail to be
reflected in the elaboration of the basic technical design. In some meetings, the
Study team advised to the local consultant experts to appoint the person who
answered the questions. The designated person showed positive attitude for the
meeting and appealed his/her opinions about the project. Once their opinions
were picked up, the other participants also started to join in the discussion.
(3) Poor Understanding of the Significance of Each Visit
The methodology of the sensitization work was not well assimilated by the local
consultant firms. Each visit has its objective in relation to technical works such
as topographic survey and the elaboration of basic technical design: for the first
visit, initial confirmation of needs on project components (location, number and
nature of water service points) prior to the discussion on provisional subproject
component between the local consultant firms, AGR of CRDA and the JICA Study
Team; for the second visit, confirmation on the result of the discussion between
the above parties concerned before the elaboration of the basic design.
This process has not been necessarily followed in the required appropriate
sequence described above. In some cases, confirmation of needs on project
Final Report Vol.1 Main Report Chapter 9 Sensitization Work
NIPPON KOEI 9-9 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
components without even any initial proper confirmation of the needs with the
population was made according to some of the meetings attended by the JICA
Study Team or the minutes of sensitization meeting or prior to any discussions on
these needs being held between AGR, the JICA Study Team and the local
consultant.
Then, the Study team held the periodically meetings with the local consultants
experts in the course of the first sensitization meeting, and suggested them to
make the beneficiary’s project participation heighten. The second sensitization
meeting has the most important role to decide the water supply planning, so the
Study team explained its importance to the experts repeatedly. After the
suggestion, the local consultants experts prepared the maps and illustrations when
they explained to the beneficiaries and urged population to appeal their opinion in
the meeting.
(4) Favorable Effects on People
The sensitization work made the following contributions to the target population.
1) Opportunity for gathering for women, who tend to be excluded from
community meeting
Due to the cultural reasons, participants of each meeting were mainly male,
female participants were quite limited. The separate meeting was
introduced by the Project, the opportunities to attend the meeting increased
for the female beneficiaries. In actual, there were very few female
participants in Jendouba, Béja, and Le Kef in the first meeting, the number
of the female increased in the second and third meeting.
2) Opportunity for re-thinking the problem of rural exodus which is related
in a number of minutes of sensitization meetings and in meetings
attended by the JICA Study Team for the Ghraissia subproject in Le Kef.
3) Realization of the educational opportunities about hygiene matters
The population can use the existing well free at present, however, hygiene
condition is very poor like high turbidity and mixture of suspended solids.
Final Report Vol.1 Main Report Chapter 9 Sensitization Work
NIPPON KOEI 9-10 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
The sensitization works introduced to improve hygiene condition and reduce
water-related disease rate by the Study, the population could understand the
relationship between water and human’s health by the sensitization works.
4) Beneficiary’s participation for water supply planning.
The population hardly imagine the exact water point location on the map, so
the participated population went to the proposed water point location with
the local experts, and they decided the exact location under their agreement.
They could act to implement the project planning spontaneously.
9.6 Conclusion
Though the sensitization work contributed to the inclusion of needs and opinions
of prospective users into project component to a certain degree, it has revealed at
the same time as not having been thoroughly assimilated by all parties concerned
due to less experience in this area, which caused different insufficient effects as
mentioned. However, it would be too early to evaluate the result of the
sensitization work, as achievement of the overall goal will take a long time to
appear. Furthermore, reinforced monitoring will be needed, namely in the next
phase of sensitization or consolidation phase, to measure the extent to which the
sensitization work conducted during the present study has an effect on the
involvement of prospective users.
Tab
le 9
.4.1
Stu
dy P
hase
s A
lrea
dy E
xecu
ted
as R
elat
ed to
Sen
sitiz
atio
n
GO
VER
NO
RA
TESU
BPR
OJE
CT
Hou
se-
Peop
le T
ouch
ed
1st V
isit
Peop
le T
ouch
ed
2nd
Vis
itPe
ople
Tou
ched
3r
d V
isit
Ave
rage
Com
mitm
ent
Hol
dsM
en%
Wom
.%
Men
%W
om.
%M
en%
Wom
.%
%M
en%
Wom
.R
ate
%A
RIA
NA
FAID
H E
L A
MR
INE-
SID
I GH
RIB
138
5943
%16
12%
8662
%10
072
%13
810
0%10
274
%68
%53
%81
AR
IAN
AH
MA
IEM
ESS
OU
FLA
4343
100%
2353
%43
100%
3991
%43
100%
4310
0%10
0%81
%10
0A
RIA
NA
TYA
YR
A48
4185
%18
38%
4492
%18
38%
4810
0%48
100%
92%
58%
96B
EN A
RO
US
OU
LED
BEN
MIL
ED a
nd O
ULE
D S
AA
D21
510
247
%12
056
%18
486
%18
586
%21
510
0%19
088
%78
%77
%87
BEN
AR
OU
SSI
DI F
RED
J96
9610
0%78
81%
4446
%37
39%
9610
0%96
100%
82%
73%
85N
AB
EUL
SID
I HA
MM
ED30
921
570
%14
848
%18
761
%95
31%
287
93%
183
59%
74%
46%
84ZA
GH
OU
AN
JIM
LA53
3668
%25
47%
5310
0%42
79%
4381
%35
66%
83%
64%
91ZA
GH
OU
AN
RO
UIS
SAT
BO
UG
AR
MIN
E23
022
10%
3214
%20
388
%70
30%
138
60%
4118
%53
%21
%82
BIZ
ERTE
SMA
DA
H20
519
394
%13
566
%15
174
%96
47%
205
100%
205
100%
89%
71%
87B
IZER
TETE
RG
ULE
CH
224
198
88%
8337
%22
410
0%68
30%
224
100%
224
100%
96%
56%
95B
EJA
EL G
AR
IA94
4548
%0
0%94
100%
2931
%66
70%
3234
%73
%22
%84
BEJ
AEL
GA
RR
AG
278
6022
%0
0%24
086
%14
753
%65
23%
259%
44%
21%
82B
EJA
FATN
ASS
A18
540
22%
00%
185
100%
101
55%
6736
%38
21%
53%
25%
83JE
ND
OU
BA
CH
OU
AO
ULA
390
4010
%0
0%34
789
%55
14%
7519
%35
9%39
%8%
90JE
ND
OU
BA
JOU
AO
UD
A 1
/ B
ATT
AH
A12
6840
3%0
0%38
530
%12
810
%24
419
%11
49%
18%
6%81
JEN
DO
UB
AM
AA
LIM
469
4510
%10
2%26
456
%90
19%
9019
%42
9%28
%10
%82
JEN
DO
UB
AO
ULE
D D
HIF
ALL
AH
531
479%
51%
163
31%
5811
%10
219
%47
9%20
%7%
81JE
ND
OU
BA
SID
I SA
LAH
(can
celle
d)-
--
--
--
--
--
--
LE K
EFC
HA
AM
BA
-O.E
I ASS
EL-H
MA
IDIA
127
4535
%0
0%85
67%
3528
%67
53%
2117
%52
%15
%82
LE K
EFM
'HA
FDH
IA -
GH
RA
ISSI
A90
9010
0%9
10%
9010
0%89
99%
3033
%17
19%
78%
43%
81K
AIR
OU
AN
CH
ELA
LGA
171
109
64%
3822
%17
110
0%41
24%
110
64%
4526
%76
%24
%82
KA
IRO
UA
NG
UD
IFET
T21
681
38%
199%
153
71%
4521
%12
759
%60
28%
56%
19%
84K
AIR
OU
AN
HM
IDET
248
146
59%
5221
%19
277
%10
141
%73
29%
3715
%55
%26
%85
KA
IRO
UA
NZG
AIN
IA91
6571
%0
0%83
91%
5257
%73
80%
3741
%81
%33
%83
KA
SSER
INE
DA
AY
SIA
6129
48%
4980
%35
57%
2134
%49
80%
3252
%62
%56
%86
KA
SSER
INE
HEN
CH
IR T
OU
NSI
(New
Pro
ject
)17
974
41%
4525
%11
564
%48
27%
4927
%33
18%
44%
23%
83K
ASS
ERIN
EO
UED
LA
GSA
B83
3846
%41
49%
2834
%31
37%
2328
%0
0%36
%29
%85
KA
SSER
INE
SID
I HA
RR
ATH
- G
OU
ASS
EM16
411
067
%10
262
%20
12%
7546
%89
54%
5433
%45
%47
%84
SID
I BO
UZI
DA
MA
IRIA
6868
100%
6810
0%68
100%
4465
%60
88%
4465
%96
%76
%90
SID
I BO
UZI
DB
LAH
DIA
157
8755
%78
50%
2717
%72
46%
7850
%66
42%
41%
46%
89SI
DI B
OU
ZID
BO
UC
HIH
A26
517
365
%78
29%
135
51%
7528
%12
045
%62
23%
54%
27%
84SI
DI B
OU
ZID
MA
HR
OU
GA
9898
100%
9294
%73
74%
5556
%62
63%
4950
%79
%67
%83
MA
HD
IAC
OM
PLEX
E B
OU
SSLI
M92
369
876
%23
325
%82
089
%27
029
%20
422
%46
5%62
%20
%85
MA
HD
IAC
OM
PLEX
E EL
AIT
HA
296
169
57%
6923
%11
439
%12
041
%11
439
%79
27%
45%
30%
85G
AFS
AH
ENC
HIR
ED
HO
UA
HER
4615
33%
00%
3372
%32
70%
3372
%0
0%59
%23
%93
GA
FSA
KH
AN
GU
ET Z
AM
MO
UR
260
8934
%52
20%
137
53%
3313
%51
20%
00%
36%
11%
85G
AFS
ATH
LEIJ
IA27
376
28%
00%
6624
%7
3%10
639
%0
0%30
%1%
84G
AB
ESB
ATE
N T
RA
JMA
403
107
27%
338%
102%
6516
%33
8%0
0%12
%8%
92G
AB
ESC
HA
AB
ET E
JJA
YER
4523
51%
3271
%18
40%
00%
3169
%0
0%53
%24
%87
GA
BES
EZZA
HR
A37
3710
0%37
100%
1027
%37
100%
2054
%0
0%60
%67
%94
MED
ENIN
EB
OU
GU
EDD
IMA
5449
91%
2852
%49
91%
5194
%54
100%
00%
94%
49%
98M
EDEN
INE
CH
OU
AM
EKH
- R
. EN
NA
GU
EB35
515
243
%0
0%13
237
%55
15%
4814
%0
0%31
%5%
89M
EDEN
INE
ECH
GIU
IGU
IA94
7074
%0
0%36
38%
3032
%50
53%
00%
55%
11%
85M
EDEN
INE
TAR
F EL
LIL
7714
18%
5268
%25
32%
3545
%39
51%
00%
34%
38%
86
NIPPON KOEI TAIYO CONSULTANTS 9-11
The Detailed Design Study onThe Rural Water Supply Project in Tunisia
Final Report Vol.1 Main ReportChapter 9 Sensitization Work
Final Report Vol.1 Main Report Chapter 10 Operation Plan
NIPPON KOEI 10-1 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
CHAPTER 10 OPERATION PLAN
10.1 Current Operation of Group of Water Users (GIC)
10.1.1 Governmental Organizations Related to GIC
Ministry of Agriculture (MOA) and Ministry of Interior (MOI) are the
governmental organizations deal with establishment and operational matters
concerning as GIC. Government Unit of GIC (CGIC) which is the section
organized under the AGR in each CRDA supports beneficiaries directly to establish
and operate GIC.
Ministry of Agriculture undertakes the Project implementation; The
Sub-Directorate of Potable Water Supply in DGGR, AGR of every CRDA and GIC
have the close co-ordination to attain the Project objectives. Figure 10.1.1 and
10.1.2 show the organization chart of the Ministry of Agriculture and CRDA of
Kasserine, respectively.
Ministry of Interior plays a role of supporting GIC through the Governor, the
highest authority in the governorate, who administrate the GIC according to the
laws with regard to GIC establishment and succeeding activities. GIH, Group
interested in Water Uses, in the governorate takes charge of the procedure to
establish and legalize the GIC.
Governmental Organizations Related to the Rural Water Supply Project
Ministry of Agriculture Ministry of Interior
GIC
• Participation of the project • Submission of the agreement • Report of accident and leakage
• Provision of the project information
• GICestablishment support • GIC staff training • Facilities repairing works
• Office staff Training
GIC activities monitoring
• Submission of GIG establishment
• Submission of Budget
• GIC establishment approval
• Budget approval
AGR
CRDA
SGIC
DGGR
CGIC
Governor
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NIPPON KOEI 10-2 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
10.1.2 Organization (GIC Management)
The scale of the water supply system is very small. Therefore, it is almost
impossible to establish an independent organization to manage it. So a users
association called Group of Water Users (GIC) is introduced instead for the
establishment of users self-management system for the projected water supply
system. Limited potential and poor quality of water resources are issues to be
considered for the Study. They sometimes compel population to accept
unsatisfactory quality water supply, especially relatively higher salinity contents.
These matters show that while the Project is technically simple, it is quite difficult
to assure the project sustainability. Introduction of the sensitization program for the
prospective beneficiary population is one of the measures to overcome this
difficulty. The objectives of the program are raising the population’s consciousness
of the ownership of the projected system and the participation in its management,
and continuous self-development of the population itself and users associations
(GIC) through the participation of the project is as well.
After the realization of the water supply systems under the Project 2001, each
project will be managed by GIC, which in general will be created before starting the
construction stage. The general organization chart of GIC is shown below:
General Concept of GIC Organization
Treasurer (Trustee)
Pump operator
Trustee
Trustee
President
Tap keeper
Tap keeper
Beneficiary
Beneficiary
Beneficiary
Trustee
GIC Board of Trustees
Tap keeper
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NIPPON KOEI 10-3 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
GIC consists of beneficiary family heads who took part in GIC by submitting the
signed commitment form during the feasibility study. The number of the trustees is
minimum three (3) and maximum nine (9) but the number is to three (3), six (6), or
nine (9). If candidates match these numbers, the trustees are nominated without
election. Besides this case, the beneficiaries elect the trustees. The president and
the treasurer are elected from among the trustees. Their term is one and they do not
get any income from GIC.
The operation of the facilities are managed by the treasurer, the pump operator, and
the tap keeper. The treasurer can not get income from GIC, however, he has the
responsibilities about the financial operation of GIC, preparation of the annual
budget, the approval procedures, management of the income and expenditure, and
the annual report preparation.
The GIC Board of Trustees designates the pump operator and the tap keepers and
pays between 100 and 150 DT/month to the pump operator. The pump operator
prepares the pump operation plan with the support of the trustees and GIC. The tap
keeper can get a commission of around 20% of water charge paid by a beneficiary at
a communal tap. A trustee can become the pump operator or the tap keeper. The
beneficiary owes: a) the periodic payment of membership fee b) the periodic
payment of the charge for used water c) the contribution to GIC management by the
participation in the GIC general meeting d) the payment of the revolving fund at
starting the water supply system operation.
Though the organization of GIC is established like this, the treasurer and the pump
operator are main actors of GIC management.
10.1.3 Current Operation
In rural water supply projects implemented before 1996, population sensitization
was reportedly not emphasized. Actually, no detailed information was given to the
local inhabitants on the projects or on formalities related to the creation of Water
Users Groups, GIC, supposed to manage them. People did not, consequently, take
interest in the GIC activities, namely, the management, operation and maintenance
Final Report Vol.1 Main Report Chapter 10 Operation Plan
NIPPON KOEI 10-4 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
of a constructed water supply system, and were reluctant to regularly pay the
required membership fee and water cost price due to the irregular water supply
caused by inefficient management of GIC. As a result, the efficiency and
effectiveness of the rural water supply projects were lower than expected.
The sensitization program to identify prospective beneficiaries and make them
understand the beneficiaries’ responsibilities to take part in GIC was introduced to
improve such situations and enhance local people’s consciousness on the objectives
and values of the water supply project and raise their (consciousness on)
participation in the management of the projected water supply system through GIC
activities.
10.2 Operation Plan
10.2.1 Operation Strategy
SGIC, DGGR Service division for GIC, has already prepared the general manuals
in Arabic for the pump operator and the treasurer of GIC.
At present, there is no problems occurred about the manuals when the Study team
surveyed at the sites. Therefore, the operation plan was prepared based on the
existing manuals. The Study Team translated them into French, then prepared
manuals that can be applied to each projected water supply system taking particular
conditions of each subproject into consideration. Because the power source (power
supply from STEG or generator), the type of pump, kinds of installations, etc., vary
from one subproject to another .
The manuals described the contents of the tasks assigned to the pump operator and
the treasurers. The tasks have been already quoted in the previous sub-chapter.
Providing that the pump operator and the treasurer fulfill their duties according to
the manuals with the assistance of a CRDA, the operation of the projected water
supply system will be executed without difficulties.
10.2.2 Operation System
As mentioned in Chapter 6, the projected water supply systems were designed as
Final Report Vol.1 Main Report Chapter 10 Operation Plan
NIPPON KOEI 10-5 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
simple as possible considering that GICs would operate and manage the systems.
The pump operator has responsibility to operate the system and the treasurer should
manage the GIC. Their assignments to be fulfilled under the administration of the
president of GIC board of trustees are as follows:
(1) Pump Operator
1) Securing enough quantity of water that users demand;
2) Management and maintenance of hydraulic equipment, measuring
devices, system protection installation, etc.;
3) Management and maintenance of pipe network with ancillary facilities
4) Disinfection using Javel water;
5) Keeping the pumping station management book and recording the daily
operation;
6) Keeping devices, tools and documents in the pumping station;
7) Guarding the pumping station and hydraulic equipment;
8) Reporting to the President of GIC on the technical conditions of
equipment, apparatuses and devices of water supply system.
He also should prepare a daily operation program, which is based on the needs of
the beneficiaries, under the assistance of trustees of GIC and the CRDA service
division for GIC.
The tap keeper has to open a valve of a communal tap or a potence according to the
daily operation program and then he should collect water charge whenever a
beneficiary takes water from a service point. He also has the duty to do
maintenance and minor repair works of the communal taps or the potence under the
control of the pump operator.
Operating hours of the service points of the existing water supply systems under the
Rural Water Supply Project is decided by each GIC:
Some of projected water supply systems, which are planned to be supplied water
from SONEDE, are not equipped with a pump, etc. No pump operator is
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NIPPON KOEI 10-6 The Detailed Design Study on TAIYO CONSULTANTS the Rural Water Supply Project in Tunisia
consequently employed to such system. In this case, a tap keeper programs the
operating time of a service point under the administration of the president of GIC
board of trustees.
(2) Treasurer
1) Annual budgeting of GIC;
2) Preparation of GIC members list;
3) Registering income and issuing a receipt;
4) Payment of authorized amount by the GIC board of the trustees;
5) Registration of income and expenditure in the book;
6) Keeping the receipts of income and expenditure;
7) Preparation of a GIC financial report;
8) Presenting the financial report to the board of trustees and the GIC
general meeting;
9) Submission of the GIC financial report with all corroborative data to a
Regional Taxation Bureau or the concerned department of the Ministry of
Finance.
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Figure 10.1.1The Detailed Design Study on The Rural Water Supply Project in the Repubilc of Tunisa Organization Chart Related to Water SupplyJapan International Cooperation Agency of Ministry of Agriculture
Final Report Vol.1 Main Report Chapter 10 Operation Plan
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Figure 10.1.2The Detailed Design Study on The Rural Water Supply Project in the Repubilc of Tunisa Organization of Kasserine CRDAJapan International Cooperation Agency
CRDA
note: Figures in parentheses show the number of staff of a said division
Division1 Hydraulics and Rural Equipment
Division 2 Administration and Finances
Division 3 Extension and Agricultural Production
Division 4 Afforestation and Soil Protection
AGR (16)
Study (4) Construction (5) CGIC (7)
Irrig. Operation Maintenance Water Resources
Function of AGR: 1) To study and carry out Rural water Supply Project and Irrigation project 2) To promote GIC activities 3) To assist procurement of equipment (by getting credit) and assist well drilling.
Final Report Vol.1 Main Report Chapter 11 Environmental Impact Assessment
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CHAPTER 11 ENVIRONMENTAL IMPACT ASSESSMENT
11.1 Present Environmental Conditions
No major negative environmental impacts are expected for Project 2000 and
Project 2001. In fact, the projects are expected to result in enhanced
environmental benefits through increased efficiency of water use. A detailed
analysis of the Tunisian EIA system has been carried out through the aegis of the
World Bank and Mediterranean Technical Assistance Programme (METAP) and it
has been judged to be amongst the best in the region. Individual subprojects
under the Project 2000 and Project 2001 will not require EIAs in accordance with
national guidelines. However, the Study carried out the Initial Environmental
Examination applying to the JBIC environmental guidelines considering
environmental impact assessment fully. EIA was also carried out for the items to
affect the negative environment impacts based on the IEE results.
11.2 Institution of Environmental Aspects
Tunisia takes up a preventive policy towards the sustainable environment issues
concerned. It undertakes to improve the quality of citizen's life, when taking
protection actions for conserving the natural resources.
Several institutions have been created with a view of protecting the environment
and insuring a sustainable natural resources development. Those are:
(1) National Office for Purification
(2) National Agency for Environment Protection
(3) The Ministry of Environment and Land Use Development
(4) The National Commission for Sustainable Development
In Tunisia, the legislator actually arranges legal texts concerning different fields of
rural zones (water, forests, soils). These texts are grouped together in three
categories:
(1) Those who concern the natural resources protection and conservation;
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(2) Those who take an interest in the fight against the pollution and diverse
nuisances;
(3) Those who institute a global framework of activities based on the relevant
laws.
11.3 Initial Environmental Examination (IEE)
Based on JBIC Guidelines, Screening and Scoping is provided, the 17 subprojects
were selected on the basis of the project scale, socio-economic conditions, natural
conditions, and the completion of field data. Conclusions of the IEE results are
shown in Table 11.3.1 and summarized as follows:
(1) Based on detailed review of the literature related to each project component,
field investigation and discussions with counterparts at GR, MOA most of
the above projects were not even subjected to an environmental review based
on Tunisian regulations.
(2) This Project will have a strongly positive net environmental impact.
1) The provision of a secure supply of clean water to 43 subprojects area
has good influence on health and safety benefits.
2) Cumulative savings in costs and manpower related to the reduction of
water related diseases will be substantial.
3) Mortality reduction caused by infectious diseases will be in addition to
the above.
4) Finally, the provision of clean water, will increase productivity and
support economic development.
(3) Negative impacts are basically temporary construction related ones and
drainage from the water point.
Therefore, Environmental Impact Assessment was carried out for those two
matters.
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11.4 Environmental Impact Assessment (EIA)
(1) Environmental impact assessment during the construction stage
The construction works executed by the Project are small scaled ones so that the
impacts affected to the surrounding environment are negligible. Besides, these
minor negative impacts can be mitigated by mitigative measures such as
informing the construction plan and working time schedule to the habitats before
the construction works.
(2) Environmental impact assessment for the drainage from the water point
Generally, the water point is used for several hours in the morning time and
afternoon time only, and its volume is about a few cubic meters. The water point
has the drainage facilities under the floor slab, so drainage from the water tap was
infiltrated properly into the ground. Drainage volume from the water tap is less
than one cubic meter, therefore, salinization will not occur by the Project. It has
not been reported from the existing facilities about the salinization problem.
Further, it is judged that no hygiene problem will arise from the drainage.
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Table 11.3.1 Overall IEE Results for 17 Subprojects (1/2)Impact Areas /Problems Further Study
1. Hmaiem Essoufla (Ariana) Sub-projet Serious 1. Serious issue of some unhygenic 25 l tanks used. 1.Awareness of hygiene very important for 35
households who will benefit.2. Overall the micro water supply project will bring big benefits overall
2. Preserve the benefits through awareness & education
Mild 1. Change in life-style when water will be available due to improved health especially of children.
1. Study sanitation conditions in the area. Spread awareness about hygiene amongst women.
2. Ouled Miled – Ouled Saad (Ben Arous) Sub-projet Serious 1. 101 households will be provided 25 l /day of
potable water1. Huge benefits due to the micro project should be institutionalised by public participation
2. Storage tank hygiene very important 2. Educate people about hygiene good for health especially children
Mild 1. Temporary construction related noise & pollution 1. Provide information about project components
3. Jimla (Zaghouan) Sub-projetSerious 1. 53 households to benefit from this micro scale
project of 3 public taps & 5 drainages1.Awareness & education about hygienic storage of water by families.
2. Clean water = better health 2. Children's benefits must be highlighted to women.
Mild 1. Noise & pollution during construction 1. Only temporary, large benefits at the end for 50+households.
4. Rouissat-Bougarnine (Zaghouan) Sub-projetSerious 1. Relatively large micro water supply of 40 m3 through
11 public taps & other facilites1. Study the hygienic storage of water by families
2. Prepare plan for public participation
Mild 1. Minor noise & other pollution during construction 1. Temporary inconvenience
5. Chaamba – Ouled El Assel - Hmaidia (El Kef) Sub-projet Serious 1. 140+ household will derive big benefits due to clean
water supply in Chaamba1. Existing unhygienic storage of 25 l/day must be discontinued.
2. Change old practice of unclean water storage 2. Public awareness through participation & education
Mild 1. Noise & other minor pollution during construction. 1. Temporary discomfort only.
6. Ghraissia (El Kef) Sub-ProjectSerious 1. 90 households will get clean Ain Senan spring water 1. 20 l /day water must be stored hygienically to
derive the benefits.2. Surrounding preserved forest reserve & 1200 m. Jughurta table be safeguarded
2. Benefits of forest preservation be highlighted with hygienic water storage practices
Mild 1. 20 m3 semi-buried tank & other construction will generate noise & air pollution
1. Temporary only, benefits of improved health in the end will be very large.
7. Chelalga (Kairouan) Sub-Project Serious 1. Dispersed micro project will benefit 63 households
with a 15 km pipeline & 14 public taps1. Existing storage unclean to benefit fully better storage be adopted.
2. Big health benefits if better hygiene is adopted. 2. Women must be informed about benefits to children's health
Mild 1. Temporary noise & air pollution in the Chalalga project area. 1. Post project benefits to compensate construction related minor disruption
8. Guedifet (Kairouan) Sub-Project Serious 1. Relatively developed project area has 169 households
benefiting; hygienic storage main issue.1. Clean storage practices should be spread through CRDA, mosque school.
Mild 1. Temporary & minor noise & air pollution during construction
1. Traffic be monitored & people should be informed about digging schedule. Project benefits be highlighted.
9. Hmidet (Kairouan) Sub-Project Serious 1. Rather large micro project benefits 248 households of
total 1600 population with 17 public taps.1. Current unhygienic practice of water storage in 25 l cans brought by women.
2. Area's dispensary & schools be made use of to spread public hygiene education.
2. Women & staff of public facilities should be brought together for public hygiene education.
Mild 1. Temporary & minor noise & air pollution for 18 dispersed communities.
1. After project benefits will prepare the people for temporary discomfort
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Table 11.3.1 Overall IEE Results for 17 Subprojects (2/2)Impact Areas /Problems Further Study
10. Zgainia (Kairouan) Sub-Project Serious 1. Almost 63 private connections & 6 public taps will
replace old system1. Individual connections will replace unhygienic 200 l family tanks upgrading the health of most of the 600+people
Mild 1. Temporary noise and air pollution due to large distribution pipelines from SONEDE connection.
1. End benefits to be provided by many households with piped water.
11. Amairia Water Supply Sub-projetSerious 1. Amaira project will benefit 68 households with reliable clean
water supply; new hygiene practices must accompany this1. Concerted effort for awareness among women for better hygiene
Mild 1. Temporary noise and air pollution due to construction activity.
1. End benefits of the project will compensate for disrupton.
12. Blahdia Water Supply Sub-Project Serious 1. 800+ people in Blahdia will benefit by 48 m3 /day of clean
water from deep well through 9 public taps & 2 potences.1. Existing hygiene practice will have to be upgraded by the communities benefiting by public awareness program.
Mild 1. Temporary & minor noise & air pollution in the area. 1. End project benefits must be kept in front. Big overall benefits due to health improvement.
13. Bouslim (Mahdia) Sub-Project Serious 1. This is a large micro water supply project providing 41
public taps with drainages & 14 privte connections,1. Family level storage will have to be hygienic for the full benefits to be availed.
Mild 1. Minor and temporary construction noise and air pollution. 1. Mitigatory measures will be taken and 17,000 residents will be informed of the construction plans in advance.
14. El Aitha/Bkour (Mahdia) Sub-Project Serious 1. No serious impact is anticipated by any of the 296
benefiting households.1. Need to upgrade existing in-house storage facilities.
Mild 1. Minor and temporary noise & air pollution during construction from SONEDE to public taps with drainages
1. End benefits of the project will be large.
15. Khanget Zammour (Gafsa) Sub-Project Serious 1. Micro water supply scheme to 121 households will
bring only benefits.1. Existing in house storage system will have to be kept hygienic.
Mild 1. Minor and temporary construction related noise and air pollution.
1. Temporary.
16. Ezzahra (Gabes) Sub-Project Serious 1. This is a micro water supply project for only 65
households.1. No negative impact, only maintenance of hygienic practices after the project completion.
Mild 1. Minor and temporary noise and air pollution. 1. People to be informed of construction schedule etc.
17. Daasya (Kasserine) Sub-Project Serious 1. Micro water supply project for 336 people will have not
negative environmental impacts1. To better benefit people in the project area will have to maintain hygienic storage in their houses.
Mild 1. Minor and temporary noise and air pollution during construction.
1. People of the area must be informed about the construction activities and schedule.
Final Report Vol.1 Man Report Chapter 12 Conclusions and Recommendations
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CHAPTER 12 CONCLUSIONS AND RECOMMENDATIONS
12.1 Conclusions
(1) In the Study, the design review of the Project 2000 designed by Tunisian
government were executed, and the basic study and the detailed design were
also carried out for the Project 2001. The design review of the Project 2000
were made for 42 subprojects of which design had been completed. No
serious problem was found in the design. Therefore, each subproject
proceeds to the implementation stage.
(2) Initially, the Project 2001 includes 44 subprojects. However, one
subproject was cancelled due to high unit invetment cost of 550
DT/beneficiary which exceeds the allowable limit. Further, three
subprojects in Jendouba were integrated as one subproject because these
subprojects use the same water source. Therefore, the subsequent Study
was conducted for 41 subprojects.
(3) For 41 subprojects, a sensitization work was carried out three times
according to the sensitization program prepared by Tunisian government and
consents to implement the subprojects were obtained from the beneficial
families of more than 80% of total beneficial families. Based on the
consents, the detailed design were carried out for 41 subprojects and tender
documents were prepared.
(4) Though 12 water sources could not satisfy the national water quality
guideline for drinking water according to the water quality analysis results,
the project implementation was decided by the Tunisian government
judgment. However, as the water source Blahdia in Sidi Bouzid contains
Lead exceeding the allowable limit, the use of such water shall be
reconsidered by the Tunisian government.
(5) According to the financial analysis, the water supply costs of 41 subprojects
range from 0.2 DT/m3 to 0.9 DT/m3. They are less than 1.0 DT/m3 of the
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allowable limit to implement the project. Besides, all the subprojects are
financially viable in 2017 (project final year). It was confirmed that
sustainable operation is expected for all subprojects.
(6) The rural water supply project in Tunisia contributes to not only supplying
water but also the realization of hygiene education, people’s settlement in the
rural area and realization of income opportunities, etc. The rural water
supply project is beneficial for the people.
12.2 Recommendations
(1) It is prospected that groundwater resources will be continuously developed
for irrigation and water supply purposes in the rural area. Meanwhile, there
is concern that lowering of the groundwater level may occur in the long term.
Because of this, the groundwater development is being managed by DGRE,
Ministry of Agriculture. In order to secure the groundwater resource in the
long term, DGGR should prepare the groundwater use plan following the
recommendation of DGRE.
(2) Though the final decision on use of the water which could not satisfy the
national water quality guideline for drinking water was entrusted to DGGR,
DGGR should judge taking into consideration influence to the local people’s
health in case that such water is used for long time.
(3) Fortunately, national subsidy system by which the construction cost is born
by the central government is available in Tunisia. It is recommended to
supply safe water applying the subsidy system extensively even if the
investment cost becomes higher.
(4) The present water quality analysis items of water source for drinking water
are insufficient to properly judge suitability of water source. It is
recommended to add analysis of toxic materials such as arsenic, lead, etc. to
the present water quality analysis.
(5) It is important to train the sensitization experts in order to reflect the
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intention of beneficiaries in the future rural water supply project. The
training should cover improvement of technique for discussion with the
people, increase of capability on visual presentation, increase of capability to
fully understand the opinions of the people, etc. Also, it is recommended
from the viewpoint of gender to continue the effort to have more women
participate in the sensitization meetings. Further, it is recommended to
make an appeal to the women for participation in the rural water supply
projects through the organizations such as literacy centers and medical
offices which are related to enhancement of women’s social status.
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