E1147 v8
Public Disclosure Authorized
GENERAL DIRECTORATE OF MESKI
Public Disclosure Authorized MUNICIPAL SERVICES PROJECT-II
WESTERN SUB-PROJECT OF CONSTRUCTION OF MAIN SEWER COLLECTORS, PRESSURE MAINS, PUMPING STATIONS & SEWERAGE NETWORK IN BASIN
Public Disclosure Authorized ENVIRONMENTAL MANAGEMENT PLAN
FINAL REPORT AUGUST 2011
TABLE OF CONTENTS Public Disclosure Authorized LIST OF ABBREVATIONS EXECUTIVE SUMMARY 1. Responsible Parties 2. Description of the Project
2.1. Location of the Project 2.2. Social-Economic Status of the Region 2.3. Existing Situation 2.4. Existing Wastewater Treatment Plant 2.5. Existing Pumping Station 2.6. Technical Characteristics of the Project 3. Legal Framework 3.1. National Legislation 3.2. International Criteria 4. Mitigation Plans 4.1. Construction Stage 4.2. Operational Stage 5. Monitoring Plan 5.1. Construction Stage 5.2. Operational Stage 6. Inst İtutional Arrangements 6.1. Construction Stage 6.1.1. Training 6.1.2. Public Relations 6.2. Operational Stage 7. Informing People to be Likely Affected by the Project 8. Sources
LIST of ABBREVATIONS
EU European Union MUNICIPALITY Mersin Metropolitan Municipality MESK İ Mersin Water & Sewerage Administration EMP Environmental Management Plan WB World Bank PAM Public Awareness Meeting PRS Public Relations Staff IBRD International Bank of Reconstruction & Development IB Iller Bank
CONTRACTOR Contractor to Carry Out the Construction Works of the Project PROJECT Mersin Water & Sewerage Administration, Construction Project of Main Sewer Collectors, Pressure Lines, Pumping Stations & Sewerage Network in Western Basin NGOs Non-Governmental Organizations
EXECUTIVE SUMMARY
İller Bank ( İB) has increased the amount of the loan towards “Municipal Services Project” by obtaining additional financing from World Bank with a view to support the environmental investments within the access process to European Union. IB will utilize this loan for water, wastewater and solid waste investments of the municipalities within the scope of “Municipal Services Project-II”.
IB has allocated some portion of this loan for MESKI towards the financing of the “Water Supply System Rehabilitation Project and has signed Sub-Loan Agreement on October 13, 2010. However, since the issue about the location of Western Wastewater Plant has been resolved, and the execution of construction of main collectors, pumping stations and some installation works of sewerage system to collect the wastewater of the region using EUR 16,778,000 obtained by the World Bank is an urgent investment, MESKI applied to Iller Bank on November 25, 2010 and December 14, 2010 for a request of investment change from drinking water sector to wastewater sector. The World Bank gave clearance to the sectoral change with an e-mail dated 12.01.2011.It is reported in letter dated 06.05.2011 and
numbered as 17534 by Iller Bank that Undersecretaria of SPO also gave clearance to sectoral change.
MESK İ has signed a protocol with IB to develop a Project which complies with the World Bank standards, and as a condition of loan, also examines the potential environmental impacts during the construction and opearational stage for the construction of Main Sewer Collectors, Pressure Mains, Pumping Stations and Sewerage Network for the settlement areas in Western Basin, in accordance with Mersin Drinking Water and Wastewater Additional Feasibility Report.
An EMP (Environmental Management Plan) has been prepared by MESKI for the Project, which was stipulated as a requirement of the protocol signed with Iller Bank. Within this EMP, some measures have been proposed towards elimination or minimization of environmental impacts that may be occur due to the activities to be performed during the construction and operation stages of the Project. Impact mitigation measures mentioned have been defined with due consideration to national legislation and also World Bank criteria. Socio-economic conditions and land use manners in the region where the Project area is located PROJE have been taken into consideration in selection of environmetal impact assestment and impact mitigation measures.
As in all projects financed by World Bank, a Public Awareness Meeting has been held on June 30, 2011 by MESKI in the center of Mersin for this Project as well to raise public awareness about the Project among local people, and get the opinion of the Non-Governmental Organizations that may be associated with this issue.
As a result of evaluations made during preparation of EMP, it is envisaged that the environmental impacts that may occur during the construction stage of the Project will be limited, and there is not going to be negative impact, due to that no special activity beyond classical methods will be carried out during the construction works of sewerage systems.
Both the contstruction Contractor and the Consultant will excute his share of duties in respect of environmental monitoring to establish and sustain a sound environmental performance during the execution of the Project. During the construction stage an environmental monitoring report will be prepared every month by the Contractor and submitted to the Consultant.
In case of the fulfillment of the requirements stated in EMP prepared by MESKI, it is envisaged that the environmental performance of the proposed Project will confirm to both national environmental legislation and World Bank criteria.
This EMP will be resubmitted to Iller Bank, after being finalized with the minutes of Public Awareness Meeting.
With the realization of the Project, the final disposal location of the wastewater will be existing Karaduvar WWTP (East), and if, when the construction works are ongoing, construction of Kandak WWTP is completed and set into operation, all national environmental compliance procedures will be complied with, if included in the EIA Regulation Annex I according to the status of capacity
“Clearance of EIA” will be sought, WWTP approval and discharge permit will be obtained and this Environmental Management Plan will be revised accordingly.
1- RESPONSIBLE PARTIES
The remarks related to the responsible parties of the Projects are as follows:
• WB : WB will review all activities of the Project that WB is going to finance and give the statement of “No Objection” for compatible activities, or propose the strengthening needed areas. • IB: The quality assurance of EMP will be provided by IB, as a requirment of WB credit conditions. IB will evaluate EMP.and inform WB about the prepared EMP whether it is appropriate or not in terms of format and content.. • Consultant:: This will be selected by MESK İ in the following months, perform the duty of the Implementation Consultant of the Project and will be responsible to carry out the desing works in compliance with the requirements of IB, and consequently of WB.The Consultant is also responsible for the Contractor to implement environmental measures defined in EMP to be taken during the construction stage of the Project. • MESKI: MESKI is the beneficiary of the envisaged Project and is responsible to get the necessary permits for the construction of the Project, and for implementing the environmental measures defined in EMP during operational stage, • Contractor (Construction Contractor): Contractor will take necessary measures given in EMP to minimize the possible environmental impacts during the realization of the Project, and is responsible towards MESKI in this respect.
2 DESCRIPTION OF THE PROJECT
2.1 Location of the Project
Project area covers the center of Mersin city which is located in Mediterranean Region and lies between 36 o48’ N latitude and 34 o38’ E longitude.. The Project area is given in Figure 1.1.
City of Mersin
PROJECT AREA
Figure 1.1. Project Area
2.2 Socio-Economical Status of the Region Acces to Mersin, located within the boundaries of 5th Region of Directorate General of Highways, is provided via highway numbered “D-400” . There is also railway within the boundaries of city of Mersin. Acces to Mersin by airway is provided through Adana Airport.
The Harbour is mainstay for the economy of Mersin, and a gateaway of Turkey opening to the world. The factories and the trade companies located in the regions of Eastern Anatolia, Western Mediterenaen and Inner Anatolia make their importations and exportations through Mersin. Mersin Free Zone, the biggest free zone in Turkey, has been established over this harbour, and is hosting over 300 companies. In Tarsus-Mersin Organized Industrial District there are around 150 companies in operation. Also, Mersin is in a center positon in terms of regional distribution of fuel-oil. In Kazanlı-Karaduvar region, nearly all fuel-oil distribution companies have regional directorates distributing fuel-oil in a broad area such as from Konya to Gaziantep, from Şanlıurfa to Kayseri. Most of these fuel-oil distribution companies have their own buoys.
Typical Mediterranean climate dominates Mersin, but when going towards inner land from from shore, continental climates dominates. In coastlines it is hot and arid in summers, mild and rainy in winters. In higher places it is cool and amid in summers, cold and snowy in winters. The annual precipitation quantity in counties varies between 419 mm and 1032 mm. The temperature ranges throughout the year between 6°C and +43°C, and usually 6 days a year it goes down to below zero.
Around 52% of city of Mersin is of forestland. Dominant vegetations are lemur and calabrian pine. In foreslands, trees cedar and oak with broad leave can also be seen depending on the elevation from mean sea level. Agriculture is carried out on around 26% of surface area of our city. On costlines there are trees of citrus, banana, fruits with hard seeds, and indoor and ourdoor vegetable cultivation lands. In higher places, upland cultivation of fruits and vegetables is common.
Type of Land Size of Land (Ha.) Ratio to City Surface Area (%) Agricultural land 406.000 25,61 Meadow-pasture 59.282 3,74 Forest 840.347 53,00 Non-agricultural land 279.271 17,65 Total 1.585.300 100
Mersin is a city of tourism with its historical/culturel values carried from past to present, a coastline of 321 km and 8 proclaimed tourism centers; a city of agriculture with its climate and fertile plains suitable to any kind of agriculturel activities; and a city of trade and industry with its 26.384 companies registered in chambers of trade and industry, 400 companies operating in Free Trade Zone, 105 companies with 5.000 workers, operating in existing organized industrial zone.
Also, the infrastructure of Organized Industrial Zone of Silifke has been completed and the allocation of industrial parcels has commenced. The number of companies which have been carring out R&D studies in Organized Industrial Zone of Mersin-Tarsus, and in Tecnology Development District serving within the campus of Mersin University is 30.
Organized Industrial Zone has been operating on an area of 380 ha, and is 24 km far from the center of Mersin and 12 km from county of Tarsus. The amount of exportation from this region is $70m and that of importation is $12m every year.
According to the “DB Environmental Assestment Possible Impacts Control List”; in the project area where the activities will be carried out, there aren’t any wet lands, protected site, cultural and natural assests that may directly affected by the activites. During the preparation of the design for Main Wastewater Collectors, Pressure Lines, Pumping Stations and Sewerage Network Lines of Western Basin, the lines are designed so as to be over the roads in approved development plan.
2.3 Existing Situation
MESKI has constructed the main wastewater collectors, at a length of 105 km, with pipe diameters varying between 400 mm-2400 mm, before the year 1993 with national financial resources. The wastewater collection system had reached a length of around 1.034 km, with subsequent additions, with pipe diameters varying between ø200 – ø2000. The sewage network serves mainly to the municipalities of Yenişehir, Akdeniz and Toroslar, which are the three of the four sub-municipalities located in the Central District.
Pumping stations and sea discharge lines were constructed under the scope of Çukurova Urban Development project in order to reduce the environmental pollution caused by the collected wastewater. Upon completion of this investment, the wastewater collected from the basins located to the west of the center of population was transferred to the Central Pumping Station by the West Pumping Station and disposed into the sea from this station through the discharge line of around 2km. The Karaduvar pumping station and sea discharge with a length of 50m were constructed to the east of the center of population. However the pollution had reached bothersome levels in parallel to high increase in the population in a short period of time. Consequently, MESK İ had commissioned the DAR-GKW-Tekeli group to prepare a feasibility study in the year 2000, in order to obtain financing from the European Investment Bank, in search of an exact solution to the problem. Under the scope of this feasibility study, it was recommended for the wastewater collected in the Central Pumping Station to be pumped to Karaduvar Wastewater Treatment Plant located in the east of the city, and the treated wastewater to be discharged into the sea. However, before the investments recommended in this feasibility study were made, the service area of Mersin Metropolitan Municipality was expanded by virtue of the Metropolitan Law numbered 5216, enacted in
July 2004, and many districts, counties and villages were included in its service area. Taking this situation into consideration, MESK İ had got the Feasibility Report revised according to the new circumstances in 2005. The target year of the Feasibility Report is 2030. In report submitted as a result of Feasibility, it was found out that it would be more appropriate to construct two separate wastewater treatment plants in East and West side within the boundaries of Mersin Greater City, due to physical, technical and economical conditions.
In 2006 the works related to the pumping stations, force mains, see outfall and operation of the plant for 5 years for East WWTP were contracted, and during this contracting process the construction of West WWTP was also planned. However, there was a problem about the land acquasition process for the land located in Mezitli, which was initially envisaged for the location of West WWTP. Thereupon, an application was made to Directorate of National Estate to purchase a public land in town of Davultepe, in county of Mezitli, with a development implementation plan with a scale of 1/1.000. MESKI is still in negotiations with financial institutions for a solution of financing required to initiate the works.
MESKI has been currenctly taking action so that investments to be made within the Construction of Western Wastewater Treatment Plant and the Municipal Services Project II will be carried out in parallel. However, it is foreseen that the commissioning of Western Wastewater Treatment Plant (WWWTP) following the completion of sewerage project will take more time than is expected. Consequently, wastewater to be collected will be able to be transferred to Karaduvar WWTP until the construction of WWWTP (by 2017-2018 approximately).
The current status about the connection for the transmission of wastewater collected or to be collected from the settlements located in the eastern Mersin into Karaduvar WWTP is summarized as follows: Settlement of Kazanlı: There is already a sewer network in this settlement, and the wastewater of this settlement was discharged into the sea by the means of Kazanlı Pumping Station before. In the beginning of year 2011 Kazanlı Pumping Station has been connected to Karaduvar WWTP through a twin force mains with the length of 7 km and treatment of wastewater is in process.
Settlement of Karacailyas: There is already a sewer network in this settlement and the wastewater of this settlement is discharged into the sea via River Deliçay. The tender for the Karacailyas Pumping Station has been carried out and the construction will be completed in the first half of year 2012. The construction of the twin force mains with the length of 3 km connecting the Pumping Station and the Karaduvar WWTP has been completed. Consequently, treatment of the wastewater of Karacailyas in Karaduvar WWTP will be commenced as of year 2012.
Settlements of Huzurkent and Adanalıo ğlu: There is already sewer network in whole area of Huzurkent, and in great part of Adanalıo ğlu, however wastewater collected from these settlements is discarged into the sea via streams. The location issue of Adanalıo ğlu Pumping Station has been resolved, and the tender process is ongoing. The constructions of the gravity line with the length of 1,124 m that will transmit the wastewater of Huzurkent to Adanalıo ğlu Pumping Station, and the twin force mains with the length of 4 km between Adanalıo ğlu and Kazanlı Pumping Station have been completed. These settlements are estimated to be connected to the Karaduvar WWTP by the end of year 2012.
Settlements of Ba ğcılar, Bahçeli, Yenita şkent and Homurlu: There is currently no sewer network in these settlements. The wastewater of these settlements will be collected in TM2.2 pumping station and then be transmitted to Karacailyas Pumping Station and consequently to Karaduvar WWTP to be treated through the force mains. MESKI has found a location for TM 2.2 Pumping Station and completed the construction of twin force mains with the length of 4.6 km between TM 2.2 and Karacailyas Pumping Station.
2.4 Existing (Karaduvar-Eastern) Wastewater Treatment Plant
Design capacity of Eastern (Karaduvar) Wastewater Treatment Plant constructed in eastern Mersin is 190.000 m3/d for year 2020, with a extension capacity upto 225.000 m3/d for year 2030 and the maximum design flow-rate of the plant is 14.500 m3/h and 17.400 m3/h, respectively.. This plant has been designed to serve upto %80 of Mersin population. (pls. see Table 1.1)
Capacity of Treatment Plant Size 2020 2030 Design Extension Population Equivalance PE 1.050.000 1.250.000 Daily flow-rate, dry days m3/d 190.000 225.000 Max. flow-rate, wet days m3/h 14.500 17.400 Table 1.1: Eastern WWTP Design Parameters for 2020 and Extension Parameters for 2030
Karaduvar Wastewater Treatment Plant is in operation since the beginning of 2010 and has an average flow-rate of 138.000 m3/d in winters and 110.000 m3/d in summers. Maximum flow-rate recorded in Karaduvar WWTPwinters of 2010 is 9.000 m3/h, and 6.000 m3/h in summers.
The expected wastewater quantity for Karaduvar WWTP for 2015 is 153.000 m3/d and expected max. flow-rate in wet days is 9.700 m3/h. (Pls. see Table 1. 2)
Target Year Size 2010 2015 Actual Expected Population Equivalance PE 760.000 850.000 Daily flow-rate, dry days m3/d 138.000 153.000 Max. flow-rate, wet days m3/h 9.000 9.700 Table 1.2: East WWTP Actual Flow-Rates for 2010 and Expected Wastewater Flow- Rates for 2015
Maximum wastewater flow-rate calculated for Western Basin (Tece-Davultepe-Mezitli) is 22.000 m3/d and 2200 m3/h for 2010, and 25.500 m3/d and 2.250 m3/h for 2015, respectively.(Pls. see Table 1.3)
Target Year Size 2010 2015 Population Equivalance PE 120.000 140.000
Daily flow-rate, dry days m3/d 22.000 25.500 Max. flow-rate, wet days m3/h 2.000 2.250 Table 1.3: Western Basin Expected Wastewater Flow-Rates for 2010 and 2015
In case the wastewater of Western Basin is directed to Karaduvar WWTP, total daily flow- rates into Karaduvar WWTP for years 2015, 2016, 2017 and 2018 are expected to be approximately 178.500, 182.070, 185.711 and 189.425 m3, and the maximum flow-rates are expected to be approximately 11.950, 12.189, 12.433 and 12.682 m3/h, respectively, so this quantities will be below the maximum capacity of the plant which is 190.000 m3/d and 14.500 m3/h. (Pls. see. Table 1.4 A,B,C,D)
Target Year Size 2015 2015 2015 Mezitli Karaduvar Total Population Equivalance PE 140.000 850.000 990.000 Daily flow-rate, dry days m3/d 25.500 153.000 178.500 Max. flow-rate, wet days m3/h 2.250 9.700 11.950 Table 1.4A: Western Basin and Karaduvar Basin Expected Wastewater Flow-Rates for 2015
Target Year Size 2016 2016 2016 Mezitli Karaduvar Total Population Equivalance PE 142.800 867.000 1.009.800 Daily flow-rate, dry days m3/d 26.010 156.060 182.070 Max. flow-rate, wet days m3/h 2.295 9.894 12.189 Table 1.4B: Western Basin and Karaduvar Basin Expected Wastewater Flow-Rates for 2016
Target Year Size 2017 2017 2017 Mezitli Karaduvar Total Population Equivalance PE 145.656 884.346 1.030.002 Daily flow-rate, dry days m3/d 26.530 159.181 185.711 Max. flow-rate, wet days m3/h 2.341 10.092 12.433 Table 1.4C: Western Basin and Karaduvar Basin Expected Wastewater Flow-Rates for 2017
Target Year Size 2018 2018 2018 Mezitli Karaduvar Total Population Equivalance PE 148.569 902.026 1.050.595 Daily flow-rate, dry days m3/d 27.060 162.365 189.425 Max. flow-rate, wet days m3/h 2.388 10.294 12.682 Table 1.4D: Western Basin and Karaduvar Basin Expected Wastewater Flow-Rates for 2018
Consequently, Karaduvar WWTP has a capacity to treat wastewater coming from Western Basin by year 2018.
The priorty of MESKI is treatment of wastewater the collected from Western Basin in Western WWTP. The construction of Western WWTP is estimated to be completed before year 2015. The related lot allocation process has been almost completed, the document of “no EIA report is required for the capacity of 30.000 m/d” has been obtained, and the project has been included in SPO’s 2011 investment program, negotiations for the loan are ongoing. In case the construction of Western WWTP is not completed by year 2015, the wastewater of Western Basin can be transmitted through a provisional transmission line to be constructed between Viran şehir Pumping Station and Yeni şehir Main Collector and then be treated in Karaduvar WWTP for certain time. As an another urgent provisional solution, the wastewater of Western Basin can be put through excisting screen and grit removal unit in Viran şehir and discharged into the sea through sea outfall structure with the length of 1.800 m.
Karaduvar WWTP was designed with due consideration to European Union Standards. In Karaduvar WWTP the carbon, nitrogen and phosphorus content of the wastewater is eliminated by active sludge process, and the sludge is treated by the mesophilic digestion process as well. The electrcal enerjy produced from biogas generated during sludge treatment process responds to significant amount of energy requirement of the plant. The wastewater treated in accordance with the criteria of effluents is discharged into the sea 2 km away from the coastline through a sea outfall structure designed and implemented as a result of decleration of sensitive area.
As seen below table (Pls. see Table 1.5) the analysis results of effluents of the plant is below the limit values required by Regulation on Urban Wastewater Treatment no. 26047, which is the national standard, and limit values required by “Pollution Prevention and Abatement Handbook (PPAH)”.
East WWTP Wastewater Analysis Unit National PPAH Design Treatment Parameters Results
BOD 5 Concentration mg/l 25 50 25 15-17
COD Concentration mg/l 125 250 100 30-35
TSS Concentration mg/l 35 50 30 5-10
Nitrogen Concentration mg/l 10 - 10 8-9
Phosphor Concentration mg/l 1 2 1 0,6-0,7 Table 1.5: Wastwater Treatment Parameters –Standards and Analysis Results
The treated wastewater in Karaduvar WWTP is discharged 2 km away from coastline and 10 m deep in the sea. The discharging point was determined as a result of Oceanographic Research and Modelling Study performed by Alkyon Hydraulic Consultancy & Research company with MESKI’s directions, with due consideration to the necessity of the water
around coastline is to be in swimmable quality The permit in respect of Sea Outfall Discharge has been obtained from the Ministry of Environment (March 4, 2009).
Raw sludge of East WWTP along with surplus biological sludge go through the digestion process, whereby methan gas and stabilized sludge are obtained. The methane gas obtained is burnt in gas engines, thus generating electrical and heating energy.
Since the studies for final disposal of the sludge is still ongoing, %70 of the sludge coming out of plant with dry matter content of 35% is conditioned with lime, thus being treated hygienically and the increasing the dry matter content to %50 to be transported to solid waste disposal site. The remaining 30% of the sludge is dried in pilot plant upto 50% and sent to solid waste landfill. It is clear that solid waste landfill can not be used for this puspose due to limitations to organic matter content of sludge, effective as of year 2015, therefore, by that time the issue of final sludge disposal will have to be resolved.
Among the methods of final sludge disposal, the first one is using the sludge in agriculture following hygienical treatment . In this respect, on one hand the analysis of sludge and agricultural soil is perfomed, and on the other hand the methods of hygiencial treatment of sludge (composting, pasteurization etc) are investigated. However, the hygienical disinfection is not sufficient for the agriculturel use of sludge. The difficulty of fulfilling the conditions of parameters required for sludge and soil concurrently and continously creates a severe restriction towards this alternative solution.
Another substantial and effective method of final sludge disposal is co-incineration of the sludge in ÇIMSA cement plant located in Mersin. According to the Feasibilty Study that MESKI had commisioned to be prepared by PEG SA, Switzerland specialized in this respect it is concluded that if the sludge is dried so as to have a dry matter content of minimum 80%, it will be suitable for co-inciniration (in terms of mercury concentration in particular), and stated the pre-investments required to be made in treatment plant and cement plant. In this context, trail works were carried out in Solar Sludge Drying Pilot Plant constructed in East WWTP, and consequently the sludge was proved to dry upto a dry matter content of over 80%. Taking account of the possibility of non-utilization of sludge in agriculture, the works of increasing the capacity of Solar Sludge Drying Plant have been initated, on the other hand the consultations with ÇIMSA cement plant to finalize urgently the ongoing preparatory works are still in progress. .
As a resullt, it is expected that the studies related to the final disposal of the sludge (utilization in agriculture or co-incineration) will be finalized in 2012, and the final decision in this respect will be given.
2.5 Existing Pumping Stations
The wastewater of settlement of Tece, located in very western part, will be pumped to the main collector of settlement of Davultepe by the means of Tece Pumping Station, and then will be transmitted along with the wastewater of Davultepe to the existing pumping station in Viran şehir by the means of Davultepe Pumping Station. The wastewater of settlement of Mezitli collected at Viran şehir Pumping Station will be transmitted along with the wastewater of Tece and Davultepe to main collector of the settlement of Yeni şehir. In order to achieve this, new pumping stations and relevant transmisson mains are required to be constructed in
Tece and Davultepe, and also the capacity of Viran şehir Pumping Station is required to be increased.
Wastewater of Western Basin transmitted to main collector of Yeni şehir will be sent along with wastewater of Yeni şehir to Yeni şehir Pumping Station, and from there it will be transmitted to Central Pumping Station. Yeni şehir Pumping Station has a wastewater pressing capacity of 100.800 m3/d during a 14 hour-peak-time with a transmission line of 2x800 mm diameter and pressing velocity of 2 m/s, and can serve to a population of around 500.000. In 2020, the population connected to network is estimated to be 150.000 in Western Basin and 300.000 in Yeni şehir, 450.000 in total, related to Yeni şehir Pumping Station and the transmisson line.
Central Pumping Station has a wastewater pressing capacity of 403.200 m3/d during a 14 hour-peak-time with a transmission line of 2x1.600 mm diameter and pressing velocity of 2 m/s, and can serve to a population of around 2.000.000. However, in 2020 the population to be served by East WWTP will be 1.200.000 at most, including Western Basin.
Consequently, the capacities of the transmission lines between Yeni şehir Pumping Station and Central Pumping Station, and between Central Pumping Station and Eastern WWTP will be sufficient by year 2020
Characteristic values of Existing Pumping Stations, Pressure Mains, Viran şehir (Mezitli) Sea Outfall are given on Table 1.5, Table 1.6 and Tablo 1.7.
Table 1.5 Characteristic Values of Existing Pumping Stations (PS) West Central Karaduvar Characteristic Wastewater PS Wastewater PS Watewater PS Conduit Invert Level at the İnlet of PS Centrifugal Centrifugal Submersible Pump Type Pump Pump Pump Number of Pumps 3 4 3 Pump Capacity (l/s) 208 840 150 Delivery Head (m) 7,5 27,5 6,6 Engine Power (kW) 65 400 45
Table 1.6 Characteristic Values of Existing Pressure Mains (Eastern Basin) Huzurkent Central Karaduvar Adanalıo ğlu 1 Gravity Adanalıo ğlu 2 Homurlu Characteristic PS PS Gravity Line Lineı Gravity Line Gravity Line Diameter of Pressure Mains (mm) 2x 1600 2x 500 - - - - Length of Pressure Main (m) 10.234,55 884,20 - - - - Diameter of Gravity Line (mm) - - 1000 1000 400 600 Length of Gravity Line (m) - - 1.298 429 3.899 2.714 Table 1.7 Characteristic Values of Existing Viran şehir (Mezitli) Sea Outfall Viran şehir (Mezitli) Characteristics Sea Outfall Length of Pressure Main (m) 900 - HDPE Diameter of Gravity Line (mm) 1.805,00
Length of Gravity Line (m) - Length of Pressure Mains (m) -
2.6 Technical Characteristics of the Project:
Physical investments to be carried out by MESKI within the scope of Municipal Services Project-II are listed in three groups as follows:
• The Construction of Pressure Mains and Main Collectors Planned for Western Basin
• The Construction of Pumping Stations Planned for Western Basin
• The Construction of Sewerage Networks of Settlement Areas in Western Basin
The Construction of Pressure Mains and Main Collectors Planned for Western Basin: The transmission lines mentioned below will be constructed within the scope of construction of Pressure Mains and Main Collectors Planned for Western Basin ( Figure 1.2 & Figure 1,3) • The construction of Ø800mm pressure mains with the length of around 750 m, and Ø1000mm gravity collector lines with the length of around 1.525 m between Tece and Davultepe.
• The construction of Ø800mm pressure mains with the length of around 3.980 m between Davultepe and Kandak WWTP
• The construction of Ø800mm pressure mains with the length of aroun 5.570 m between Mezitli-Viran şehir Pumping Station and Kandak WWTP
• The construction of Ø1000mm and Ø1400mm effluent gravity lines with the length of around 1.270 m and 3.650 m, respectively between Kandak WWTP and Viran şehir Sea Outfall.
The Construction of Pumping Stations Planned for Western Basin : The pumping stations and rehabilitation of existing Mezitli-Viran şehir Pumpnig Stations mentioned below will be constructed within the scope of Construction of Pumping Stations Planned for Western Basin (Table 1.8, Figure 1.2 and Figure 1.3) Tablo 1.8 Characteristic Values of Pumping Stations Planned for Western Basin Wastewater Pumping Q (Value for 2030 Number of Delivery Head Stations Planned for ) (l/s) Pumps (m) Western WWTP Basinı Viran şehir Exisiting Pumping Station (3+1) 313 3+1 55 Tece Pumping Station (3+1) 128 3+1 4,5 Davultepe Puming Station (3+1) 293 3+1 53
• Tece Pumping Station • Davultepe Pumping Station • Rehabilitation of Existing Mezitli-Viran şehir Pumping Station The Construction of Sewerage Networks of Settlements in Western Basin:
The sewerage networks of the settlement areas mentioned below will be constructed within the scope of the construction of sewerage networks of settlement areas in Western Basin (Table 1.9 Figure 1.2)
Table 1.9 Bill of Quantities for Wastewater Networks Planned for Western Basin (Project Target Year: 2044) Davultepe Tece Kuyuluk Total Wastewater Network for Existing Neighbourhoods (m) 37.572 39.591 32.054 Total Wastewater Networks for Development Areas (m) 92.404 66.903 89.164 Total Wastewater Network (m) 129.976 106.494 121.218 Existing Network - - - Total Required Wastewater (m) 129.976 106.494 121.218
• Construction of Tece Sewerage Network
• Construction of Davultepe Sewerage Network
• Construction of Kuyuluk Sewerage Network
Sample excavation sections and dimensions are as follows:
Figurel 1.2: TRANSMISSION PLAN OF WASTEWATER OF WESTERN BASIN TO KARADUVAR WWTP
Figure 1.3: Main Wastewater System Planned for Western Basin
3 LEGAL FRAMEWORK
The relevant national legislation and international standards have been taken into consideration for EMP prepared for the activities to be performed during the construction and the operation of MESKI Sewerage Network Project (PROJECT) envisaged.
3.1 National Legislation The legal requirements that need to be fulfilled to mitigate the environmental impacts of the activities to be carried out during the construction and operation of the Project are covered by the law and regulations listed below:
• Law on Environment numbered 2872; • Regulation on Environmental Impact Assessment • Regulation on Environmental Control • Regulation on Maintenance of Air Quality • Regulation on Control of Air Pollution Caused by Industrial Plants • Regulation on Control of Water Pollution • Technical Methods Notification of Regulation on Control of Water Pollution • Regulation on Pits to be prepared on locations where construction of sewer conduit is not possible • Regulation on Assessment and Management of Environmental Noise • Regulation on Control of Excavation Soil, Waste of Construction and Debris Regulation on Control of Solid Waste • Regulation on Control of Packages and Waste of Packages • Regulation on Control of Hazardous Wastes • Regulation on Control of Soil Pollution Law on Forrest numbered 6831, and Law and Relevant Regulations on Modifications to be made for Law on Forrest numbered 5192; • Regulation on Protection and Making Use of Agricultural Lands • Law on Soil Protection and Making Use of Lands numbered 5403; • Implementation Regulation of Law on soil Protection and Making Use of Lands • Law on Protection of Cantultural and Natural Assets numbered 2863 and relevant regulations; • Law on Labour numbered 4857 and relevant regulations; • Bylaw on Workers’ Health Safety Regulation on Workers’ Health and Safety for Temporary Works, or Works with Certain Period • Regulation on Health and Safety in Constructional Works
3.2 International Criteria
Since the Project is financed within the scope of the loan provided to IB by WB, WB Environmental Criteri can be considered to be used for the Project. With this purpose, “Pollution Prevention and Abatement Handbook ” prepared in 1998 by WB has been taken into consideration. The considerations stated in Handbook supports the maintenance of human health, mitigation of contaminants discharged into environment, using commercially proven and economical
technology, follow-up of development of national and international legislation and environmental management with the best engineering practices.. However, since the complicance with the national environmental legislation is compulsory by law, and the Project will be realized in compliance with the national legislation rules as per the agreement made with IB, the national legislation has been taken as basis for the EMP.
4 MITIGATION PLAN
4.1 Construction Stage
Engineering works of the Project will be conducted by the Consultant that MESKI will select in coming days and the Consultant will also prepare the tender documents required for construction contract. Consequently, this EMP, in which the environmental impacts that may occur during the construction of Project are evaluated, and mitigation measures are recommended, will be submitted along with the tender documents to the applicant companies before tendering. The principal environmental responsibility of the Contractor to be selected in a tendering process to conduct the construction works of the Project will be as follows:
• Provision of trainning to the construction workers in respect of environment on a purpose to contribute to the environmental performance of the Project and assignment of a Health, Safety and Environment (HSE) officer for the co-ordination with the Consultant; • Fullfilment of requirements of Turkish Environmental Legislation given in Section 3, and taking necessary environmental mitigation measures to avoid the situation of noncompliance; • Taking permits given in Section 3 in accordance with national legislation to conduct the construction activities; • Provision of requirements of new national legislation, which may come into force or be published during the construction stage, in addition to legal framework in force • EMP prepared will ve submitted to Contractor, who will also be respnsible for the compliance with this document.
The Consultant will monitor the compliance with the EMP by making inspections.
4.2 Operational Stage
MESKI will be responsible for the fulfillment of the provisions of EMP in respect of operation of the plant after the completion of the construction by the Contractor. The Contractor and the Consultant have to commit and prove that he will comply with the plant acceptance conditions required in tender documents.
During operational stage, MESKI will fullfil the conditions below::
• Monittoring the compliance by making internal audits; • Provison of trainning to the operation and maintenance staff in respect of environment on a purpose to contribute to the environmental performance of the Project; • Fullfilment of requirements of Turkish Environmental Legislation given in Section 3, and taking necessary environmental mitigation measures to avoid the situation of noncompliance;
• In addition to legal framework in force, fulfilment of the requirements of new national law, regulations and international criteria, which may come into force or be published during the operational stage
The significant environmental impacts and the mitigation measures proposed to mitigate these environmental impacts that may occur on water, air, soil and other receiving environments during the construction and operational stages of the envisaged Project are given in Table 3.1..
Table 3-1 Environmental Impacts of the Project, and Mitigation Measures
Institutional Stage Mitigation Measure Cost Responsibili ty* The portion of excavated soil to be used for backfilling will be stored at the location of excavation, while the remainning soil will be transported by the transportation vehicles for which the permits are taken Included in Excavated to be stored at the places Construction construction Contractor Soil defined (to be used for costs backfilling material on roads) by the county municipality after taking the necessary permits, and in case storage area is not sufficient, it will be collected properly at the solid waste disposal area.
Institutional Stage Mitigation Measure Cost Responsibili ty* Noise levels of excavation and working machines operation at construction cannot exceed the level stated in the "Regulation for Assessment and Management of Environmental Noise". (Impact noise L cmax cannot exceed 100 dBC.) Noies and Construction activities will Vibration be performed between Construction (excavtion No Cost Contractor 07.00-19.00 hours. Since the and drilling construction will be works) executed in three separate stages, generation of collective noise will be relatively avoided. In case when the construction activities must continue at night, local population that will be affected will be informed at least one week before the activity date. Dampers of the vehicles carrying material will be Included in Dust kept covered. Construction construction Contractor Emissions The working area will be costs wetted espically in hot, dry and windy weathers. . Construction waste that will be sent to junkyard and debris disposal area will be seperated first, and then the Included in Costruction ones to be sent to junkyard Construction construction Contractor Waste will be sold, the others will costs be sent to solid waste landfill by transportation vehicles for which the permits are taken
Institutional Stage Mitigation Measure Cost Responsibili ty* This will be formed at the places where the building sites are established. The solid wastes to be formed Domestic will be picked up by the staff Included in Construction Solid of relevant municipality construction Contractor Waste after taking the necessary costs permits from the relevant municipality, and will be disposed at solid waste stroing area. This will be formed at the places where the building sites are established. Portable rest rooms may be Included in Domestic provided for this area where Construction construction Contractor Wastewater the workers works in large costs numbers.The wastewater to be formed will be collected in septic pits and then be disposed by sewage trucks.
Institutional Stage Mitigation Measure Cost Responsibili ty* The drivers of the vehicles transporting material to or from the construction site will obey the speed limits. In excavation sites the passageways will be formed right after the excavation in order not to prevent people from passing there and the parapets by the sides of passageways will be used to prevent people from falling. Included in Public The excavated sites will be Construction construction Contractor Safety covered safely, if possible, costs so it will not impose any danger to public health, if not possible, warning signs will be put around the excavation site and the necessary measures will be taken. The pipe endings will be covered with lids during storing in order to prevent animals from entering the pipes.
Institutional Stage Mitigation Measure Cost Responsibili ty* In order to prevent water from filling into the pits excavated, the water will be extracted through a drainage system or by motopumps, and the extracted muddy water will be stabilized and may be discharged when the soil is settled. The shoring will be placed on the edges of the pits to prevent settlements if the excavation is deep. Worker Included in Construction Health and Personal protection construction Contractor Safety equipment will be provided costs in accordance with national legislation on worker heath and safety (using warning signs on the site, placement of warning strips and temporary parapets, using safety shoes and hard-hats, using mask for the dust that may form up, using ear plugs for the noise, availability of first-aid kit and staff.) and the necessary arrangements will be made. If any asset of historic, cultural or archeological value is found in excavations, Directorate of Provincial Culture and Tourism will be informed Historic, and works will stop. No cultural and Construction work will continue until No cost Contractor archeologica l assets agreement and permission to do so is granted by this Directorate. Consultant and Contractor will supervise the works continuously to prevent the removal of artifacts by workers.
Institutional Stage Mitigation Measure Cost Responsibili ty* During construction, each vehicle related with the construction will be checked and inspected with "Motor Vehicle Exhaust Emission Included in Exhaust Construction Measurement License" to construction Contractor fumes see whether the Exhaust costs Measurements are made in accordance with the criteria specified by the Ministry of Environment and Forestry For the passage of the work machinery and trucks on access routes to construction sites, the necessary road and traffic arrangements will be made by placing necessary Included in warning signs in a planned Construction Acces roads construction Contractor manner with the co- costs ordination of Traffic Branch Directorate of UKOME (Superstructure Coordination Ceneter) of Mersin Metropolitan Municipality. The regular maintenance of the pumping stations and pipes during operation will be performed. Before using the pipes, Included in MESKI Operation Leakage leakage tests will be operation
performed. costs The repair records will be kept for the network and the maintenance plans will be formed. Disasters Immediate response plans and will be established for Included in Accidents damage, stealing, etc. events Operation operation MESKI (Earthquak that may happen in valve costs e, flood rooms and pipes and etc.) reservoirs.
Institutional Stage Mitigation Measure Cost Responsibili ty* Solid wastes that may form up following maintenance and repair works will be transported by the Included in Solid Operation transportation vehicles for operation MESKI Waste which the transportation costs permits are taken and will be stored at the sites to be defined by the municipality. The arrangements will be made in accordance with the Worker relevant national legislaton Included in Operation Health and on worker health and safety operation MESKI Safety (including provision of costs personal protectin equipment) In the area which is 100 m away from the plants, the noise level will not exceed 60dBa during day time, 55dBa during evening time, and 50dBa during night time. For this purpose, the sound isolations will be provided in pumping and rising centers either by putting isolation materials in the walls of Noise (due building of the plant or by Operation to pumping putting the motors into stations) acoustic cabins. Regular (monthly) maintenance will be performed on all mechanical equipment that may cause noise. The surrounding area of the pumping and the rising centers can be afforested, thus providing a long term natural noise isolation.
5 MONITORING PLAN
In the document of ‘Turkish Municipality Services Project Environmental Framework’ which is prepared by Iller Bank for the infrastructure projects benefited from World Bank loans, it is stated that the findings related to environmental monitoring studies required within the scope of EMP during the realization and operation of the Project will be submitted to IB along with monitoring reports.
Since the activities for the construction and the operational stages of the Project are different, and consequently potential environmental impacts will also be different, environmental monitoring activities are recommended to be performed individually. The data obtained as a result of monitoring activities will be compared with the national legislation rules given in Section 3.
The monitoring plan of the Project is given in Table 5.1.
5.1 Construction Stage
During the construction stage, water and air quality and noise levels will be monitored, and the findings obtained will be compared with relevant legal limit values. The Contractor will prepare a report regarding monitoring avtivities in compliance with the program given below and will submit to the Consultant: