ADDENDUM
THE ENVIRONMENTAL IMPACT ASSESSMENT REPORTS FOR THE TOWNS OF
SABIRABAD AND SAATLI, DATED APRİL 2011 RESPECTIVELY
ON THE PROPOSALS TO BUILD A JOINT WASTE WATER TREATMENT PLANTS
FOR SABIRABAD AND SAATLI ON A NEW SITE, AND TO ESTABLISH A NEW
WATER INTAKE POINT (TALISH WATER INTAKE)
Baku, July 2013
PROPOSAL TO BUILD A JOINT WASTE WATER TREATMENT PLANT FOR
SABIRABAD AND SAATLI ON A NEW SITE
1.
BACKGROUND
The waste water treatment facilities for cities of Sabirabad and Saatli have been envisaged as two
separate units under the initial design. The Environmental Impact Assessment Reports have been
prepared in April 2011 for each site and considered the associated impacts and mitigation
measures. However, in course of the project implementation new considerations arose which led
to a new engineering decision, namely to build a joint waste water treatment plant which would
be serving both Sabirabad and Saatli. Those considerations are as follows:
 construction of a joint WWTP instead of two separate ones is a less costly solution;
 construction and operation of one WWTP instead of two facilities is associated with
less environmental risks;
 the proposed WWTP, while being at a proper distance form both towns, is close to
the discharge point, which minimizes the environmental risks associated with
transporting the treated effluent from the WWTP site.
2.
DESCRIPTION AND ASSESMENT OF PROPOSED SITE
The site proposed for the construction of the joint WWTP and related infrastructure for the towns
Sabirabad and Saatli is located approximately in the middle of two regions (please see Map),
namely11 km east from the residential areas of Saatli and 9 km south –east from the residential
areas of Sabirabad. There are no water bodies in project area.
Figure 1 Location of WWTP area
Total area of the WWTP is 8 ha. The area where the WWTP will be built belongs to Sabirabad
region Galagayin municipality. At present the area is leased to local owner for cotton-growing.
According to the law of the President of the Azerbaijan Republic № 987-III Q “On owning
lands for needs of the state” on April 20, 2010 this area will be taken out from municipality’s
balance and given to state balance. After that Azersu JSC will buy this area from local
Executive Power and will privatize. After these local municipality will made new agreement
with renter. According this agreement municipality can give new area or compensation. Land
acquisition documents are being implemented by Geodesy department of Azersu JSC. After the
conclusion of the documents required by the World Bank's resettlement policy will be clear. It
is expecting the relocation policy documents till June 2014. The area of WWTP and land
owners have been shown in figure 2 and 3.
Figure 2. The area of WWTP
Figure 3
High saltiness areas organize 44-61% in the Mughan and Mill plains. Hydro-carbonate type
salting is observed in the big territories. Cotton, grain and other plants are brought up in studied
area. Sanitary guarding strip of the WWTP will be built appropriating to the norms and will
have no negative impact on surrounded sowing area. The WWTP will be built according to
ATV-DVWK-A and SNIP 2.04.03-85 standarts.
Mill-Mughan plain's geomorphological condition forming has happened in the result of
accumulative activity of the Kur-Araz rivers and their small arms.
Relief forms of the basic plain are alluvial-proluvial, delluvial-proluvial type in the territory.
Horizons of high pressure and with underground water have formed in the investigating area.
Chemical composition of the sweet waters consists of hydro carbonate-sulphate and sulphate.
But in the chemical composition of the salty waters chlorine has very big prevalence.
Chemical composition of the pressured waters consists of sulphate chloride, chloride-sulphate
and chloride. Mineralization degree of these waters varies from 5-10g/l to 35 g/l or in higher
intervals.
Underground waters have spread in the territory.
Rocks keeping water consists of small grainy sands, sands and sometimes of little grainy sands
in the investigating area. Thickness of the layers consisting of these rocks is between 0,5-5,0 m.
Sometimes reaches 10m.
Underground water horizonts have been formed by clayey, sandy loam and thick sand layers in
investigated area. Filter coefficients of these rocks is changing between 0.017-2.7 m/day.
Sleeping depth from the earth level of the underground waters is almost varies between 0-1,0 m
in the project site. This depth reaches 1,2-1,5 m in some places. Generally, sleep depth of the
grunt waters is in 0,1, 2-3 intervals in big territories of the plains. Sleeping depth more than 510 m and 10 m is only observed in foothills and edge areas.
High mineralized underground waters are typical for plains territories. So, mineralization
degree of underground waters changes between 3-5 g/l and 25-50 g/l in the area.
Chemical compositions of the underground waters in these plains are of hydro carbonate,
sulphate-hydro-chloride, chloride carbonate sulphate and chloride type. Most widespread grunt
types are chloride, chloride sulphate and chloride.
Underground waters have been appeared in all wells drilled in WWTP area. Underground
waters sleeping depth is changing between 2.0-2,5 m (march 2012). Underground waters
mineralization degree is changing between 3,3-22 g/l. General coarsenesses is 9-207 mg.ekv/l,
PH-7,8, sulphate ion quantity is 1100-5700 mg/l. Water is weak, middle and strong aggressive
because of chemical composition against concrete. Underground water of the viewed area is
useless for drinking. Here for reducing the level of the underground water collector drainage
network was constructed. There will be no connection between the treated water of WWTP and
underground water, so that treated water will be flown directly to Shorsu collector. Shorsu
collector is the branch of Bash Mil-Mugan collector.
Construction of Bash Mil-Mugan collector began in 1984. The construction of the collector will
provide giving 235 thousand ha additional area improved by meliorative side.
Total length of Bash Mil-Mugan collector with its brunches is 185,89 km.
The water discharge of the collector where the collector flows to the Caspian sea is 107,0
m3/sec and in the lower part the width from the bottom is 70-50m.
Figure 4. Collector network
The discharged water from WWTP will be flown to Shorsu collector. As the permeability capacity of the
collector is sufficeint, there will be no problem in the transportation of the useless water (maximum
flow 80000 m3/day- 0.92 m3/sec) from WWTP.
Cross-section profile of the collector in discharge point is given figure 5. The width of the canal from
surface is 16m,width in the bottom is 4m,water permeability capacity is 9.2 m3/sec.
Figure 5: Cross section of collector in discharge point
Figure 6 WWTP scheme
3.
PROPOSED WASTER WATER TREATMENT
ANTICIPATED QUALITY OF EFFLUENT
METHODOLOGY
AND
The sewerage service area and collection network will include the rayon centres of Sabirabad
and Saatli with their close proximity, and the following villages along the interceptor sewer:
(i)
Sabirabad rayon:
 Kurkendi ve Qaralar to SPS-2
 Suqavuşan ve Qasadli to SPS-5
 Balakend to SPS-6
 Qalayın ve Bulaqlı to SPS-7
(ii)
Saatli rayon
 Mustafabeyli
 Yeni Novrozlu
 Beyliq
 Qıraqlı
The total population of these villages with urban centers of Sabirabad and Saatli in 2030 will be
51,929 and 30,845 inhabitants.
The sewerage network will be the gravity flow type and is estimated as 90% of peak hour flow
rates.
The collector sewer will be terminated at the inlet pumping station of the selected treatment
plant site. The sewer dimensions are determined based of number of settlements to be served
and the respective wastewater flows.
In Sabirabad 96,746 km sewerage network including 16,856 km collectors will be designed.
The diameter of the collector sewer is sized for the entire service area.
In Saatli 121,029 km sewerage network including 18,701 km collector will be designed.
The flows for both regions were calculated for a specific forecasted water demand of 120
l/capita * day for 2030 and a wastewater generation factor of 1 which corresponds to the
German sanitary engineering practice. For definition of Dry Weather Flow (DWF) and of Wet
Weather Flow (WWF) a surcharge of 50% of the generated wastewater flow for extraneous
water were considered according to German engineering practice (ref. to DVWK-ATV-A-118).
No differentiation between dry and wet weather was made. The peak dry-weather hour flow
was defined at 2 times the generated average daily wastewater flow.
The maximum flow (wet weather flow - WWF) (80000 m3/day)to be treated in the WWTP will
occur under wet weather conditions and it has been limited to a factor of 1.6 of the maximum
generated dry-weather hourly flow plus the extraneous flow for all locations.
Figure 7 Location of the new WWTP
The population equivalent and untreated wastewater flows were considered for a design
horizon of 20 years, i.e. for year 2030.
The pollution loads are expressed in terms of BOD5 (biochemical oxygen demand at 20°C),
COD (chemical oxygen demand) and TSS (total suspended solids) on which basis the WWTP
has been dimensioned. These values were estimated on unit mass loadings of 50 g BOD5/(c
d), 100 g COD/(c d) and 60 g TSS/(c d) which were previously applied in projects in
Azerbaijan and correspond to a typical composition of municipal raw sewage with medium to
low industry impact. The concentrations calculated on this basis reflect figures higher than
medium strength and they are considered adequate due to the fact that an organic surcharge
coming from future polluting industries or faecal sludge from septic pits can not be excluded
at this stage.
A septic station was foreseen for such purposes. The septic can be received and treated
according to a loading plan to be established and adapted to the actual requirements after
start-up of the plant.
As no sensitive water bodies are used as receptors, the figures shown for Total Kjeldahl
Nitrogen (TKN-N) and Phosphorus have an indicative character related to their removal but
TKN is used for estimation of the oxygen requirement due to nitrificantes respiration.
Quality effluent standards and removal percentage
The effluent standards set up in EU Directive 91/271 Urban Wastewater Treatment must be
fulfilled:
- Biochemical oxygen demand (BOD5 at 20°C)
< = 25 mg/l
- Chemical oxygen demand (COD)
< = 125 mg/l
- Total suspended solids
< = 35 mg/l
Based on this, the following minimal percentage of removal or treatment efficiency will be
achieved:
- BOD5
- COD
> = 90 %
> = 75 %
- TSS > = 90 % 1
-
For the future final stage of the WWTP with secondary and tertiary wastewater treatment the effluent
standard shall be according to the EU Directive 91/271/EC.
The implementation of the WWTP is foreseen in the following three Stages. Only the 1st stage
is content of the project. The following two stages have to be considered in the design phase of
this project.
1st stage:
-
Only mechanical treatment: max. flow 80,000 m³/d, consisting of
-
- inlet pumping station with coarse screens,
-
- fine screens with screening wash press,
-
- sand and grease trap with sand washer and grease sieving drum,
-
- blower for sand trap
2nd stage:
Mechanical treatment for max. flow of 80,000 m³/d and 50% of biological treatment for
30,000 m³/d average flow, consisting of:
-
- 1st stage mechanical treatment (to be implemented in this project)
- primary sedimentation tanks
- 50% activated sludge tanks
- blower station
- 50% secondary sedimentation tanks
- return/surplus sludge pumping station
-
- disk filtration
- UV-disinfection
-
- 50% sludge treatment plant
3rd stage:
Mechanical treatment for max. 80,000 m3/d and 100% biological treatment for 60,000 m3/d
average flow, consisting of:
-
1
- 1st and 2nd stage mechanical, biological, sludge treatment
According to 91/271/EEC this requirement is optional
-
- + further 50% activated sludge tanks
-
- + further 50% secondary sedimentation tanks
-
- + further 50% sludge treatment plant
The urban centers of Sabirabad and Saatli are both located in a low inclined area. This
condition causes laying of collection pipelines in deep to transfer the wastewater by gravity or
intermediate pump stations. The site proposed for the construction of the joint WWTP and
related infrastructure for the towns Sabirabad and Saatli is located approximately in the
middle of two regions, namely11 km east from the residential areas of Saatli and 9 km south –
east from the residential areas of Sabirabad
The flow from the villages Qalagayın, Kurkendi, Suqavuşan, Qafarli, Qaralar, Asadli, Bulaqlı,
Balakent will discharge at separate points connected into a single network. All wastewater
will be collected at the SPS8 and then pumped to the WWTP. And finally the treated
wastewater will be pumped to salty water drainage canal as near as possible to new WWTP.
An improved wastewater collection network and collector are proposed for Sabirabad and
Saatli urban centers and villages for 2030 populations of over 52,344 and 30,845 people, is
composed of a collection network and a wastewater treatment plant to serve the 100% of the
proposed service area said above. The capacity of WWTP is 60,000 m3/day.
Stabilization of the sludge shall also be simultaneously realized in the aeration tanks. The
plant is designed to achieve the EU Directive 91/271/EEC on Urban Wastewater Treatment
without nutrient removal requirements.
The sludge is generated in a process of waste water treatment. The volume of sludge is
estimated as 93% of inflow water. Thus approximately 22,320 kg/day sludge will be
generated. (* Sludge volume (kg/day) W= inflow water volume (Q m3/day) x SS density (400
mg/l x 0.93 x 10-3)
The design flow to be treated in the treatment plant is the maximum hourly dry-weather flow
436.74 lt/sec. Further on, the treatment plant is capable of discharging the maximum wet
weather flow (MWWF) through one of the two lines into the receiving water tanks at
maximum water levels (to be determined during detailed design).
The final disposal of the treated effluent is the nearest salty collector drainage named Shor Su
Canal. Distance from WWTP to to collector is 20-30 m (see figure 2).
The E-ASS technology is well proven worldwide and it can be expanded in the future if it will
be necessary to achieve more stringent requirements as the above mentioned.
With this process the sludge will be stabilized within the same aeration reactor without the
need of separate sludge stabilization.
The excess sludge will be thickened in thickener tanks before being conveyed to conventional
sand drying beds for dewatering process. This approach is the most recommendable and
widely used method of sludge dewatering when land is available. The principal advantages of
drying beds are low cost, infrequent attention required and high solids content in the dried
product.
Sludge Treatment and Disposal
The byproduct obtained in the operation of a WWTP includes screenings, grit, scum and
sludge which can be in different forms depending on the unit treatment process utilized.
Sewage sludge are by far the largest in volume having potentially beneficial properties,
particularly with regard to nutrient content, but also containing potentially putrescible organic
matters, pathogens and eventually toxic heavy metals. Once the disposal route has been
defined the sludge has to be processed according. The processing (handling and treatment)
options are depicted in the next table:
Table 1 Sludge processing methods
Steps
Conditioning
Thickening
Dewatering
Stabilisation
and/or
disinfection
Thermal
Drying
Types of Processes
Chemical conditioning
Thermal Conditioning
Gravity thickening
Gravity belt thickener
Dissolved air flotation
Drying beds
Centrifuging
Filter belt
Filter press
Biological processes:
Anaerobic digestion
Aerobic digestion
Long term liquid storage
Composting
Chemical processes:
Lime treatment
Nitrite Treatment
Physical processes
Thermal Drying
Pasteurisation
Direct
Indirect
Objectives
Sludge structure modification
Improvement for further treatment
Obtain sufficient density, strength and solids
content to permit hauling for further disposal
process
Reduce the water content of the sludge
Reduce the water content of the sludge
Stabilized sludge reduce the odour generation
Reduce the pathogen content of the sludge
Energy can be recovered by anaerobic digestion
Highly reduce the water content
The most applied options which are now available for disposal are incineration, land-fill or reuse
in agriculture.
Incineration is an option used in large WWTP installations with an important influence or impact
of industrial effluents for the ultimate disposal of i.e. contaminated sludges. In some cases,
however, it may be the most cost-effective option, regardless of the state of contamination.
Debris as screenings and grit removed can be co-incinerated. Usually it is expected debris and
sludge to have an organic content as high as possible and to be as dry as possible as there is no
point in using fuel to evaporate water. Stack and odour emissions from the incinerator are subject
to authorization by the Environment Agency.
The land-fill disposal has constituted one of the most applied disposal route up to now. Some
directives establish minimum solids concentrations of the sludge or organic content in addition to
the content of heavy metals as pre-condition for co-disposing in municipal land-fill. A codisposal of screenings and grit is possible too. Depending of the legislation it could be required
that screenings and grit after reduction of organic content shall be lime stabilized.
As a rule of thumb, the disposal to agricultural land is allowed if the sludge has been previously
digested and complies with the requirements issued in the legislation regarding i.e. to
dissemination and control of heavy metals into the environment. The treated sludge application
shall be in line with the requirements of the crops in order to avoid leaching of nutrients in the
groundwater (especially Nitrates) and phosphorous (surface waters). Other possible paths include
the application e.g. in gardens or golf courses in which case the treatment shall include measures
for efficient removal of pathogens in terms of fecal coliforms, helminth eggs and salmonella. In
the past, screenings and grit were co-buried on site. This practice is overtaken as well as an
application on the agriculture due the harm coming from some constituents of these by-products.
From the before mentioned processing and disposing alternatives for solids and bio-solids
removed in a WWTP it was decided to dispose them in the landfill as the town administration
plans the establishment of the landfill next to the WWTP. Other options go beyond of the present
FS and should be analyzed in the frame of an extra sludge strategy study.
The excess sludge will be co-stabilized in the bio-reactors (extended aeration) and dewatered up
to a dewatering grade of 40% in covered sludge drying beds.
4. POTENTIAL IMPACTS
The environmental risks associated with the newly proposed location of the WWTP have been
analyzed. The anticipated impacts, both positive and negative, are expected to occur during the
construction of the WWTP and related infrastructure, and during the operation of the WWTP.
(i)Impacts during the construction phase include:
- dust generation;
During construction, noise from the construction area and operation of construction machines
will be generated. However planned area is not located in residential area, thus it is not likely to
give significant impact. Operation facilities may generate noise, however these facilities will be
placed inside of sound proof building, thus it is not likely to have serious impact to surrounding
inhabitants.
- impacts from noise and vibration from construction machinery;
During construction, noise from the construction area and operation of construction machines
will be generated. However planned area of new WWTP is not located in residential area, thus
it is not likely to give significant impact. During construction of canalization pipeline there will
be impact to residential area Operation facilities may generate noise, however these facilities will
be placed inside of sound proof building, thus it is not likely to have serious impact to
surrounding inhabitants.
- disturbance to traffic and pedestrians; safety issues
The main effects on the local community during construction are associated with the considerable
disruption that the works will have within the town through excavation of defunct infrastructure
and installation of new sewer pipes in the roads. The proximity of the works to residents also
raises the issue of health and safety, as well as traffic disruption and interference with access to
houses, work places and public buildings such as hospitals and schools.
Generally public works will create employment, and most of the workers will be hired in the
nearest town and village. Furthermore, their consumption will take place in the same residential
area. Hence this development project will not give any impacts on this item.
Few activities to cause adverse impact may be observed.
The following measures will be taken to protect the health of personnel working in polluted
areas:
•
Health and safety training will be conducted as part of the project induction
for all workers;
•
All personnel will be supplied with special coveralls and the minimum PPE;
•
Personnel working in excavation of polluted soils and collection, loading,
transportation and disposal of sewage waters will be supplied with protective safety
glasses, gloves, long rubber boots and dust masks;
•
Mobile shower cabins will be set up for personnel;
•
Personnel will pass regular medical check-ups.
•
Use of asbestos and other dangerous substances is not planned.
As referenced earlier, impacts on people and their economic activity, public transport and
agricultural activities during construction phase are possible. Construction sites will be divided
into sections, works will be planned according to a schedule prepared beforehand and people and
organizations will be notified ahead of time. Borders of construction sites will be marked, safety
boards will be placed, signs regulating movement of pedestrians and traffic will be erected.
- Damage to soil due to excavation works;
Spills of fuel, oil and other liquids have the potential to cause contamination of soil and
groundwater. The Contractor shall implement measures to contain such spills and avoid
contamination as much as possible. However, it is possible that some contamination may occur
and the Contractor will be required to implement remediation measures in accordance with
project and national requirements.
The area is susceptible to surface erosion, especially after heavy rain; therefore efforts will be
made to reduce the potential for soil erosion during construction activities. Temporary berms
will be constructed where necessary to control any run-off to prevent rills or galleys from
forming or soil wash out to surface water features. Correct groundwork and compaction will be
specified in the contract documentation to prevent soil erosion.
- Generation of solid and liquid wastes on construction site and by the construction
camp:
During the construction there will be a different type of solid waste. It may create problems for
the surrounding areas and also for human health if not managed well.
Inert, solid waste (metals, asphalt chunks, rocks, concrete, gravel, sand etc.) will be generated
during drilling wells and pipeline installation operations. The replacement and installation of
sewer pipes in the town will include removal of asphalt surface and importation of suitable
padding and backfill (eg sand) as well as backfilling using suitable excavated material.Repair of
paved roads and walkways and asphalt surfaces will also be required.
Solid wastes generated in construction sites and during the construction of pipelines and sewer
drains will be transported by the construction contractor. Transportation and disposal of such
waste will be agreed with local executive authority and regional department of MENR, as
necessary.
(ii) Impacts during the operation include:
-
Impacts on receiving water
The effluent will finally be discharged to the salinized water collector Shor Su Canal. The
current quality of the receiving water is specified in the Table below and is compared with the
parameters of the treated effluent. As demonstrated, with quality of effluent meeting the
standards set forth by the EU Directive 91/271 Urban Wastewater Treatment, the discharged
effluent will not provide a significant impact on the receiving waters.
Design parameters of wastewater passing into wastewater treatment unit
Table 1: Design parameters at intake
Parameter
Unit
BIG
RESIDENTIAL
AREAS
(units with wastewater flow
of more than 15.000 m3/day)
SMALL RESIDENTIAL
AREAS
(units with wastewater flow
of less than 15.000 m3/day)
Biochemical oxygen
demand (BOD)
mg/liter
350
280
Chemical oxygen demand
(COD)
mg/liter
700
560
Suspended solids (SS)
mg/liter
400
400
Nitrogen (N)
mg/liter
60
50
Phosphorus (P)
mg/liter
10
8
lowest temperature of waste
water (Tmin)
°C
15
15
highest temperature of
waste water (Tmax)
°C
25
25
Sludge age – 2035 (S2035)
day
8 – 12
10 – 12
Mixed liquor suspended
solids (MLSS)
mg/liter
3700 – 4500
3700 – 4500
Sludge volume index
ml/liter
100
100
Return activated sludge
(RAS), percentage
%
75
75
Note: The category “big residential areas” shall be applied.
Flows and Loads
Table 2: Flow Parameters
Stages
Flow Parameter
Unit
1st /2nd stage
3rd stage
Max. daily wet weather flow
m³/d
80,000
80,000
Average daily flow
m³/d
30,000
60,000
Average hourly dry weather flow
m³/h
1,250
2,500
Max. hourly dry weather flow
m³/h
2,928
2,928
Max. hourly wet weather flow
m³/h
3,333
3,333
Min. hourly flow
m³/h
362
362
Table 3: Load Parameter
Stages
Load Parameter
Unit
1st /2nd stage
3rd stage
BOD5 loading (1)
kg/d
10,500
21,000
COD loading(1)
kg/d
21,000
42,000
TSS loading
kg/d
12,000
24,000
P loading
kg/d
300
600
N loading
kg/d
1,800
3,600
Effluent Standards
The final effluents shall comply with the requirements for discharges from urban
wastewater treatment plants subject to Articles 4 and 5 of Directive 91/271/EC
requirements. The values for concentration or for the percentage of reduction shall apply.
Table 4: Requirements for discharges from urban wastewater treatment plants (BOD/COD/SS).
Reference: EU Directive 91/271/EC.
Parameters
Concentration
Minimum percentage of
reduction (%) (1)
Reference method of
measurement
Biochemical oxygen
demand (BOD5 at 20°C)
without nitrification (2)
25 mg/l O2
70 - 90
Homogenized, unfiltered
undecanted sample.
Determination of
dissolved oxygen before
and after five-day
incubation at 20°C ±
1°C, in complete
darkness. Addition of a
nitrification inhibitor
Chemical oxygen
demand (COD)
125 mg/l O2
75
Homogenized, unfiltered
undecanted sample.
Potassium dichromate
Total suspended solids
35 mg/l O2
90
- Filtering a
representative sample
through a 0.45 μm filter
membrane. Drying at
105°C and weighing
- Centrifuging of a
representative sample
(for at least five mins
with mean acceleration
of 2,800 to 3,200 g),
drying at 105°C and
weighing
(1)
(2)
Reduction in relation to the load of the influent.
The parameter can be replaced by another parameter: Total organic carbon (TOC) or total oxygen demand (TOD) if a relationship can
be established between BOD5 and the substitute parameter.
Table 5: Requirements for discharges from urban wastewater treatment plants to sensitive areas
regarding phosphorus (P) and nitrogen (N). Reference: EU Directive 91/271/EC.
Parameters
Concentration
Total Phosphorus
2 mg/l P
(10,000 – 100,000 PE)
Minimum percentage of
reduction (%) (1)
Reference method of
measurement
80
Molecular absorption
spectrophotometry
70 - 80
Molecular absorption
spectrophotometry
1 mg/l P
(more than 100,000 PE)
Total Nitrogen
(2)
15 mg/l N
(10,000 – 100,000 PE)
10 mg/l N
(more than 100,000 PE)
(3)
(1)
Reduction in relation to the load of the influent.
(2)
Total nitrogen means: the sum of total Kjeldahl-nitrogen (organic N+NH4), nitrate (NO3)-nitrogen and nitrite (NO2)-nitrogen.
(3)
Alternatively, the daily average must not exceed 20 mg/l N. This requirement refers to a water temperature of 12°C or more during the
operation of the biological reactor of the wastewater treatment plant. As a substitute for the condition concerning the temperature, it is
possible to apply a limited time of operation, which takes into account the regional climatic conditions.
Table 7. Water Quality analysis results of Shor su Collector in Sabirabad
№
Item
1
2
3
Transparency
TSS
Electrical conductivity
4
Dissolved oxygen
5
ODOR, ORGANOLEPTIK
METHOD
6
COLOR, ORGANOLEPTIK
METHOD
Unit
Sm
Measurement value at
Discharge point
x10-3 S/ sm
mg/l
%
10
14.1
3.800
3,12
28,5
-
odorless
-
colorless
-
8.1
7
pH
8
BOD5
MG/L
24
9
CODCR
MG/L
83
10
Total hardness
mg.ekv/l
22,5
11
Cа2+
mg/l
240,5
12
13
14
15
16
17
18
Mg2+
ClSO42HCO3CO32Na+ + K+
Total ion
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
118,1
361,1
1412,3
236.6
0
810,0
3812,3
19
20
21
22
23
24
NO2NО3NH4 +
Total nitrogen
PO43total phospohorus
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
0,09
3.12
0,81
4.13
0,17
0,21
Table 8. Water Quality at the Planned Discharge Points
Average daily
water
discharge
Volume
(m3/day)
Site Name
Discharge
Point
Shor su
collector
Sabirabad and Saatli
Effluent standrats
Current Water Quality
60000
BOD5
CODCr
TSS
T-N
T-P
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
24
83
14.1
4.1
0.2
25
125
35
5
2
Odor
Offensive odor is observed at areas near places where waste waters are currently discharged in
both regions. This damages the environment and the human health. The proposed joint WWTP is
located in non-residential area and it is at 820 m distance from the nearest residential area (Figure
8). No other facilities are located nearby.
Wind rose
Figure 8. Wind direction and WWTP location
The operation of the new WWTP, the quality of discharged effluent will be in accordance with
the EU Directive 91/271 Urban Wastewater Treatment, and will represent considerably improved
situation compared to the existing baseline. This will ease the burden on the environment. The
social implications of the operation of the new WWTP will be through improved access of local
population to sanitation services, reduced health risks and the reduced risks of the water borne
diseases. After operating the WWTP the water will be treated according to EU Standards and it
will be positive impact to the environment.
5.
ENVIRONMENTAL MANAGEMENT PLAN
The environmental impacts identified in Section 4 above will be addressed through the
implementation of the Environmental Mitigation Plan. The responsibility for the implementation
of the EMP will be borne by Contractor. The Construction Supervision Consultant will be
responsible for regular monitoring of the implementation of mitigation measures by Contractor.
The PIU Environmental Specialist will undertake periodical supervision of environmental
compliance of both Contractor and Supervision Consultant. The status of the EMP
implementation shall be reflected in the PIU projects progress reporting of the Bank.
Introduction
This section of the report presents an Environmental Management Plan (EMP) for the Saatli and
Sabirabad scheme, which outlines the management mechanisms (i.e. working arrangements) for
how the environmental and social elements of the project will be managed from detailed design
and construction through operation.
The implementation of mitigation measures and emergency measures shall be the responsibility
of the Contractor. The Contractor shall ensure compliance with all environmental legislation,
regulations and conventions. The principal responsibility for environmental monitoring lies with
the AZERSU.
General mitigation during construction
The Contractor will be contractually required to conform to the requirements specified in the
EMP and will be accountable to AZERSU, as the client, through its Project Implementation Unit
(PIU).
There are several mechanisms of ensuring delivery during construction of both general and site
specific mitigation developed in EIAs. One mechanism involves requiring the Contractor to
further develop the outline requirements in an EMP by designing individual Management Plans
(MPs), such as oil and fuel storage, waste management, traffic management and pollution
prevention. This approach is favoured for the project, as it encourages early evaluation of these
aspects by the contractor and he produces a set of MPs that can be checked and verified on site
and are auditable through the monitoring process. The following table (Table 5-1) outlines the
content of the MPs to be produced by the contractor and their development will be assisted by
the Environmental Specialistfrom AZERSU PIU.
Table 9: List of Management Plans
Environmental Plan
Outline of Contents
Waste Management
Measures to reduce, handle, separate, store and dispose waste
from operations and work sites. Requirements for monitoring,
recording, inspection and reporting. Instructions for the
storage and handling of various types of hazardous materials
Measures to control, collect, treat or reuse wastewater from
various sources to avoid pollution.
Measures to reduce and control air emission from various
sources. Requirements for monitoring, recording, inspection
and reporting.
Measures to reduce and control dust emissions from roads,
work sites and construction activities. Requirements for
monitoring, recording, inspection and reporting.
Measures to reduce and control noise and vibrations generated
by plant at all work sites and from transport activities.
Requirements for monitoring, recording, inspection and
reporting.
Procedures for response to a range of incidents and
emergencies. Requirements for monitoring, recording,
inspection and reporting.
Procedures for minimising disruption to traffic and access,
especially for public buildings such as hospitals and schools
Measures to reduce adverse impacts on cultural heritage
during construction. If any late finds are made measures
must be taken to ensure „conservation‟ in accordance with
legislation.
Specification for storage of all oils and fuels (secondary
containment etc) and procedures for refuelling vehicles, plant
and equipment so as to ensure environmental protection
Procedures for site inspection and reporting including
notification of non-compliance
Procedures for handling of complaints including response to
complainer and reporting.
Waste Water
Management
Air Quality Control
Dust Control
Noise and Vibration
Control
Emergency Response
Traffic Management
Archaeology and
Cultural Heritage
Oil and fuel
storage and refuelling
Site Inspection
Handling of
Complaints and
Grievances
Environmental
Training
Storage and use
of hazardous
products & substances
Reinstatement
- Project Induction
- Toolbox talks
Training requirements and procedures including target
groups, contents of training sessions and verification
Registration, logging of material safety data sheets and risk
assessment of materials and chemicals being used in the
project. Documentation requirements.
Plan for removal of all equipment and materials from
Plan
temporary work sites and reinstatement of areas to a standard
at least as good as the pre-construction condition.
As is the case in many countries with developing economies, there is an absence of compliant
hazardous waste disposal facilities in Azerbaijan. A Bank financed waste facility has been
constructed in Sumgayit near Baku, but costs of transporting waste are likely to be prohibitive
for the contractor and eventually all rayon centres should provide such facilities. In this respect,
the only practicable course of action to avoid environmental damage caused by hazardous waste
is for the material to be stored on site properly and securely by the contractor and then transfer
this material to a specially designed storage facility in Sabirabad and Saatli. This new facility
should be operated by the municipality and/or AZERSU and a cost allowance has been made in
the EMP accordingly.
Emergency planning
During the construction phase Emergency plans will be prepared by Contractor. The Emergency
plans will determine the responses to unforeseen incidents and accidents and allow co-ordination
with the Emergency Services as appropriate.
The Contractor shall set up emergency procedures for the construction phase. The basis for
emergency response and planning is firstly incident prevention, and secondly rendering any
incidents harmless. The priorities for protection in an emergency situation are the following:
• Human life and health;
• The environment;
• Assets belonging to Client and the Contractor;
• Maintenance of normal operations on site.
The protection of human life, health and the environment shall be primarily dealt within the
Contractor's Environmental, Health and Safety Plan. The Contractor shall also take all
reasonable measures to prevent contamination of water, air or land as a result of any incident, to
reduce such contamination if it is unavoidable and to remediate any contamination that has
occurred during the works.
The Contractor shall immediately report any significant incidents to AZERSU and if relevant
MENR.
Appropriate measures against fire will be taken in compliance with existing laws and safety
rules. These measures are as follows:
• Fire fighting equipment will be placed in all sites having fire potential;
• All personnel will be trained on fire fighting.
Monitoring
During the construction phase ongoing monitoring will be conducted to ensure compliance to the
environmental and social requirements and standards. Operational monitoring will essentially
comprise performance monitoring of the efficiency of the WWTP, from which it will be possible
to gauge environmental enhancement, as downstream monitoring will indicate pollution levels
and record general environmental quality through observations.
The main elements of the environmental monitoring plan are the following:
Construction phase:
 Dust monitoring;
 Noise monitoring;
 Solid wastes monitoring;
 Waste waters monitoring;
 Soil monitoring.
Operation phase:
 Monitoring of water volume in water sources and water storages;
 Monitoring of microbiological and chemical composition of water distributed to people,
comparison to water standards;
 Monitoring of pollution load of sewage;
 Monitoring of treatment effluent;
 Monitoring of sludge quality in the plant;
 Monitoring of sludge disposal sites to check for any contamination;
 Establishing a laboratory (for monitoring sanitary condition of waters) at Sabirabad and
Saatli Water Canal Department.
The environmental monitoring records shall be submitted by the Contractor in a monthly
progress report to AZERSU. Any non-compliances shall also be reported immediately to
AZERSU.
The Contractor shall keep and maintain environmental records as a part of their programme of
environmental management. These records shall be made available upon request.
The records shall include:
• Monitoring records;
• Reports from any compliance audit performed on the Contractor;
• Complaints;
• A log of environmental incidents including preventive/remedial actions and photos;
• Minutes from meetings and relevant correspondence;
• Environmental consents and/or licenses.
Environmental records are to be maintained by the Contractor as may be required by ENR.
Operational records will be maintained by AZERSU.
Operational aspects
Sabirabad and Saatli Water Canal Department will be supplied with various modern control,
maintenance, measurement equipment and small laboratory, as well as administrative building,
vehicles, special equipment for cleaning sewer systems within the project framework. Sewage
treatment process will cover mechanical and biological stages, and these waters are planned to be
cleaned to irrigation water level.
Water and wastewater treatment management will be carried out according to internally
compliant procedures of AZERSU. These procedures comply with requirements set by the
legislation and management regulations of Azerbaijan Republic.
Potential environmental impacts during utilization phase are few, and their management is
described below:
• Continuous control over water quality and standards;
• Control over water consumption;
• Prohibiting entrance of people and animals in water protection areas and providing regular
guarding;
• Continuous control over chlorination process in water storage facilities, accommodating
• Chlorine storage in chlorination building to safety rules;
• Continuous control over mechanical and biological sewage aeration in sewage treatment
works, use of mobile power generator where necessary for providing continuous treatment;
• Continuous control over quality (microbiological and chemical composition) of treated
effluent;
• Researching options of using purified waters for irrigation purposes and for growing
technical crops during dry seasons. Conducting consultations with authorized organizations;
• Continuous control over sludge processing and quality;
• Researching options of using sludge as a fertilizer for agricultural lands or as a compost for
landscaping works, in agreement with authorities;
• Sludge could be utilized for fertilizing ornamental planting in the many parks in Sabirabad
and Saatli town and/or trees planted in road sides.
Table 10: Environmental Management Plan
Phase, location
Issue
Mitigation
Institutional
responsibility
Cost
Notes
Cost
note
AZM
Construction
Excavation of
trenches for removal
of old and laying of
new pipelines
Disturbance to
residents, waste
disposal
Advanced liaison, public consultation, adhere to working
hours and noise & vibration minimisation. Waste
management to project procedures.
Contractor
20,500
Contractual
requirement
1
Sand and gravel
borrow pit
Disturbance of river
bed, water quality,
ecosystem
disturbance
Dust, fumes, workers
health and safety,
ecosystem disturbance
Use existing borrow pits or buy material at licensed
operations; requirement for official approval or valid
operating license2.
Contractor
NA
Contractual
requirement
2
Use existing, licensed asphalt plants and good practice
during work.
Contractor
NA
Contractual
requirement
3
Damage, pollution to
river and riparian
areas
Adherence to fuel/oil storage, hazardous materials
handling & clean up procedures, good soil management
and reinstatement
Contractor
NA
Contractual
requirement
5
Soil management,
drainage
interference, water
pollution
Land resources,
agriculture, income
Good soil management techniques required, topsoil
segregation, good storage and reinstatement to prevent
erosion and loss of fertility, pollution prevention measures
implemented.
Liaise with PAPs prior to works; adhere to RPF,
implementation of grievance mechanism; no storage of
Contractor
NA
Contractual
requirement
5
Contractor
1,000
Contractual
6
Asphalt laying
Mains pipelines
construction
2
Options for acquiring sand and gravel and the quantities required are unknown until the contractor mobilises to site and breaks ground. He may apply
for a license to extract material using his own equipment or purchase material from a 3rd party. If he intends to extract material himself then a precondition will be environmental evaluation of the site, obtaining the approval and license from the relevant Authority and operation of activities in
accordance with best practice, which will include adherence to fuel and oil storage and refuelling, waste management and health and safety. If he
purchases material from a 3rd party the contractor is required to undertake a due diligence inspection of the facility to satisfy himself that the above
environmental standards are being applied.
Phase, location
Issue
Mitigation
Institutional
responsibility
Cost
Notes
Cost
note
AZM
generation activities
Ecological damage
materials on agricultural land or as agreed with
landowners.
Careful storage of soil and trench sub soil to avoid
damaging forest and riparian habitat.
requirement
Contractor
NA
Contractual
requirement
Undertake environmental analysis to limit damage from
pipeline routing; best practice for water courses crossings
and consider potential for pipeline to act as a drain for
water to change hydrology; pipelines should cross streams
in the shortest distance possible; construction should be
scheduled for during dry flows where feasible.
Apply best practice pipeline construction techniques,
including water stops in trench, proper backfill,
compaction, erosion prevention measures at any water
crossings and reinstatement.
Consider best practice installation techniques, eg open cut
method versus trenchless techniques such as thrust bore,
pipe jack, horizontal drilling to minimise environmental
damage to water courses and valuable lands and roads etc.
Contractor
1,000
Contractual
requirement
7
Contractor
10,000
Contractual
requirement
8
Contractor
NA
Contractual
requirement
9
Asphalt
dust, fumes
cover truck load
Contractor
10,000
Contractual
requirement
10
Stone
Dust
wet or cover truck load
Contractor
Contractual
requirement
10
Sand and gravel
Dust
wet or cover truck load
Contractor
Contractual
requirement
10
Waste management
Avoidance of
pollution
Contractor
NA
Contractual
requirement
11
Traffic management
noise, vehicle
exhaust, road
All waste to be managed and disposed of as per agreement
with the measures which are specified in this EIA & as
agreed with AZERSU during discussions as part of this
EIA. Copies of waste transfer/disposal retained on file.
Haul material at off peak traffic hours; use alternative
routes to minimize major traffic sites
Contractor
NA
Contractual
12
Routing of pipeline
Pipeline construction
methods
Pipeline installation
methods
Material transport
Phase, location
Issue
Mitigation
Institutional
responsibility
Cost
Notes
Cost
note
AZM
congestion
requirement
Construction site
Noise and vibration
disturbance to
residents and
workers
Access disruption
Limit activities to daylight working hours (not between 8
p.m. and 7 a.m. or as agreed with public and authorities);
equipment operating with noise mufflers
Contractor
NA
Contractual
requirement
12
Liaise with residents and any visitors or tourists
Contractor
2,000
Contractual
requirement
13
Vehicle and
pedestrian safety
when there is no
construction activity
Appropriate lighting and well defined safety signs and
information to residents
Contractor
NA
Contractual
requirement
14
Sludge disposal
Dispose without causing pollution or other adverse effect
AZERSU
NA
AZERSU will 15
arrange
disposal with
MENR local
department and
municipality.
Water quality
AZERSU to monitor discharge quality parameters and take
remedial action in the event of non-compliance
AZERSU
NA
AZERSU will
arrange in
liaison with
MENR local
department
16
Hazardous waste
Construct hazardous waste storage facility until
Municipality constructs a compliant final disposal facility
for hazardous waste.
Municipality/A 50,000
AZERSU
Cost excluded
from the EMP
costs for
contractor
17
Operation
Phase, location
Issue
Mitigation
Institutional
responsibility
Cost
Notes
Cost
note
AZM
accountability.
TOTAL
1. Cost assumes one public meeting at commencement of construction to inform residents about disturbance issues; cost assumes 1000. Waste management cost assumes removal of contaminated material from
trenches and storage at a temporary site pending construction of a waste facility. Quantities assume 100 m 3 at a m3 cost of 200 = 20,000. Final disposal cost cannot be calculated now and will be AZERSU
responsibility.
2. No costs are assigned here, as EMP specifies only licensed material can be used.
3. No costs area assigned here; trucks will be covered, which should be standard practice and cost is included in tendered cost.
4. Cost assumes supply and use of drip trays and other containment arrangements and supply of clean-up equipment; cost assumes 10,000
5. No costs are assigned here, as EMP specifies good practice and costs are included in tendered cost.
6. Cost assumes one meeting with nearby residents/land owners at commencement of construction to inform residents about construction issues; cost assumes 1000.
7. Cost assumes walk-over survey by contractor and refining of any route amendments. Cost assumes 1000
8. Cost assumes possible modifications to pipe laying operations e.g. inclusion of water stops to prevent water flow down trench; cost assumes 20 water stops = 10,000.
9. No costs are assigned here, as EMP specifies best practice; already included in tendered cost.
10. Assumes cost of covering trucks cost assumes lump sum 10,000.
11. Cost assumes handling, segregation, storage and transfer of waste to storage facility in Oghuz; cost assumes oil and other waste 10,000.
12. No cost assigned, already in contract.
13. Cost assumes regular meetings and/or information displayed to inform residents about traffic disruption. Cost assumes 2,000.
14. No cost assigned, already in contract.
15. No cost assigned as initial discussions regarding sludge management and its disposal not yet commenced.
16. No costs assigned as responsibility of AZERSU during operation.
17. Cost assumes Municipality construction of a medium to long term storage facility for hazardous waste, which needs to be hard stand, pollution controlled drainage and locked for security and covered. Cost
estimate, not based on specified design or obtained construction prices.
Table 11: Environmental Monitoring Plan
Phase,
item
Construction
What parameter
is to be
monitored ?
Dust
Where is the
parameter to
be monitored?
Construction
How is the parameter to
be monitored?/ type of
monitoring equipment
When is the parameter to be
monitored? (frequency of
measurement or continuous)
Why is the parameter
to be monitored?
(optional)
Institutionaİ responsibility
Install &
operate
Cost; note
Visual observations
Daily site inspections by
supervisors
Compliance to
contract
PIU AZERSU
PIU AZERSU
Visual observations
Daily site inspections by
supervisors
Compliance to
contract
PIU AZERSU
PIU AZERSU
Visual observations
Daily site inspections by
supervisors
Compliance to
contract
PIU AZERSU
PIU AZERSU
Visual observations
Daily site inspections by
supervisors
Compliance to
contract
PIU AZERSU
PIU AZERSU
sites
Noise &
vibrations
Construction
sites
resulting
from equipment
work
Traffic disruption Construction
during
construction
sites
activity
Reduced access
Construction
sites
Construction
Visual observations
Daily site inspections by
supervisors
Compliance to
contract
PIU AZERSU
PIU AZERSU
Oil and fuel
sites
Water and soil
Well field
Visual observations, as
works will be in winter,
low flow season
Daily site inspections by
supervisors
Compliance to
contract
PIU AZERSU
PIU AZERSU
Construction
Visual observations
Daily site inspections by
supervisors
Compliance to
contract
PIU AZERSU
PIU AZERSU
Compliance
to sludge
standards
and disposal
criteria, eg to
agriculture
Biological/bacterial
analysis, flow
measurement
Daily
Compliance to
operating conditions
AZERSU
NA
Selected
stations
downstream
of
discharge
point
Biological/bacterial &
nutrient analysis, flow
measurement
Weekly
Compliance to
operating conditions
AZERSU
Programme &
costs to be
agreed
between
AZERSU &
MENR
quality at
borehole site
Waste
management
sites, disposal
records
Operation
Sludge quantity
and quality
Quality of
receiving
Waters
6.
PUBLIC CONSULTATIONS
Public consultations were held in the second stage of Environmental Impacts
Assessment development, in a conference organized by Azersu JSC on February 4,
2013 in Sabirabad. A public notification was released for organizing the meeting.
Head of Sabirabad “Sukanal” Mr. X.Shikhaliyev opened the meeting and gave
general information about the project. He mentioned that the development of EIA is
one of the main terms of water supply and sewer system project implementation.
Then the consultant Mr. Nuriyev Anar talked about the content of EIA document for
Sabirabad, Saatli WTP. Discussions started after project presentation. Questions
were asked first.
Guliyeva Seadet – Sabirabad inhabitant
What was the reason to select the Talish water intake?
Answer: Talish WTP exists so there is no need to construct new WTP. To build new WTP
for each region will need more investments and more construction works.Its more suitable
to use existent WTP.
Davudov Niyaz – Saatli habitant
Why you changed the location of WWTP?
Answer: This wasn’t feasible from an economical point of view to build 2 separate
WWTP. At the same time from the other side having 2 different treatment plants could
have more impact to the environment and natural resources. New proposed WWTP area is
closer to both of cities. It’s close to collector which was selected as discharge point.
Shikhaliyev Akif – Saatli habitant
It is clear that the water intake and the location of WWTP were changed. Do this delay the
construction works? If yes, please inform us the duration of this delay?
Answer:Excatly it will happen delay. But this delay was not significant. Because
delay related with the preparation of EIA report. We will try to prepare this report in
time.
PROPOSAL FOR A NEW WATER INTAKE
The initial design envisaged water intake for both Sabirabad and Saatli to be from new Kura
intake. That proposed intake has been analyzed by respective EIA Reports for Sabirabad and
Saatli. However, later an alternative water intake has been proposed for Sabirabad and Saatli.
The argument for the selection of this alternative is that it is the existing facility and will not
generate any additional impacts/implications associated with a new construction but rather
moderate impacts normally caused by reconstruction and upgrade works.
The Talish WTP was constructed in two phases, first between 1968 and 1970 and the second
between 1978 and 1988. System is based on abstraction of surface water flows from the Kura
River in the vicinity of the village of Kichik Talish in Sabirabad district below its confluence
with the Araz river, approximately 100 km south-west of Baku. The total capacity of the
facilities is 9,5 m3 (820 thousand m3 per day), with the 1st and 2nd shifts of Kura Water
Treatment System being 3,3 m3(285 thousand m3 per day) and 6,2, m3 (536 thousand m3 per day)
respectively. The designed new centralized DWTP will supply drinking water to the urban
centers of Saatli and Sabirabad as well as the villages along the transmission lines. The
anticipated total water intake is estimated as 383.82 l/s (25238 m3/day), which constitutes about
0.5% of the total daily water flow and should not adversely affect the needs of the other
(‘downstream’) users of this source.
The quality of water at the newly proposed Talish water intake is as follows and meets the
requirements of local standards and EU Directive 98/83/EC on the Quality of Water Intended for
Human Consumption:
Table 10: Water quality standards in Azerbaijan
ITEM
pH
Turbidity
Microorganism (Colonies are formed in 1 ml test water)
Coliform bacteria (coliform index)
Intestinal bacteria formed in 1 liter of test water
Nitrates (NO3-N)
Nitrites (NO2-N)
Chlorides
Phosphates
Sulfates
Total hardness
Remained chlorine
Al
As
Fe
Ni
Cr (Cr6+)
Cu (Cr2+)
Zn
Cd
Pb
Hg
Standards
6.0-9.0
1.5 mg/l
<100
<3
45 mg/l
3 mg/l
350 mg/l
1.0 mg/l
500 mg/l
7 mmol/1
0.3-0.5
0.5 mg/l
0.05 mg/l
0. 3 mg/l
0.1 mg/l
0.05 mg/l
1 mg/l
5 mg/l
0.001 mg/l
0.03 mg/l
0.0005 mg/l
Therefore, no additional drinking water treatment unit is required, and existing drinking water
unit will be used.
The designed new centralized DWTP (please see Figure 5 below) will supply the drinking water
to the urban center of Saatli (12 villages: Beylik, Yeni Novruzlu, Mustafabeyli, Qirqli,
Mollavazli, Genishkend, Elisoltanli, Potubeyli, Qarachalar, Qaralar, Varkhan, Gomushchu) and
Sabirabad (26 villages: Quruzma, Qaraqashli, Yenikend, Qezli, Qovlar, Akhiskha, Surra, Qarali,
Balvari, Javad, Elijanli, Hesenli, Zengene, Yolchubeyli, Turkedi, Narliq, Qalaghayin, Balakend,
Qaralar, Memishler, Esedli, Qeferli, Kurkendi, Sugovushan, Yastiqobu, Bulaqli) as well as the
villages along the transmission lines. 134339 of total population will be served by this project
(Saatli – 42895, Sabirabad – 91444). General map of transmission pipeline shown in firgure
below.
These works are associated with the environmental impacts which are likely to occur during the
construction phase and are summarized below.
During construction, noise from the construction area and operation of construction machines
will be generated. Locations for intake facilities, transmission pipelines and reservoir are not
in residential area, thus it is not likely to give significant impact. However, the replacement of
distribution pipelines in the town generates noise during construction. It is not likely to give
significant impact because construction activities are conducted only in daytime.
Operation facilities may generate noise, however these facilities will be placed inside of sound
proof building, thus it is not likely to have serious impact to surrounding inhabitants.
Most of water supply pipes will be set up beside of existing main and collector roads. Reservoir
and the intake and treatment plant will be constructed in a zone that is not a residential area.
Water supply public works will create employment, and most of workers will be hired in the
nearest towns and villages. Setting up of water supply infrastructure will support the livelihood
of local residents. Hence this development project will influence positively all community
members.
Traffic restriction due to construction may temporarily affect public transportation and
operation of schools, hospitals and other public facilities, however, those will be short-term and
mitigatable by specific traffic safety plan to be produced by the contractor at the very early stage
of the contract execution.
Figure 9 Sabirabad and Saatli Drinking Water Transmission Main