• Technical Assistance and Supervision Services for The Nevsehir Wastewater Treatment Plant
• Mersin Wastewater Project - Consultancy Services for Project Supervision
• Consultancy Services for Eskisehir Wastewater Treatment Project in the Scope of “ Eskişehir Urban Development Project Component 3 - Water Services: Eskisehir Sewerage Project"
• Consultancy Services for Extension of Sewer and Stormwater Networks in the Scope of “ Eskisehir Urban Development Project Component 3 - Water Services: Eskisehir Sewerage Project"
• Yenifoca (İzmir) Sewerage And Storm Water Project
• Gölkent & Akyazı (Sakarya) Wastewater Treatment Plant Project
• Mezitli (İçel) Wastewater Treatment Plant & Deep Sea Discharge
• Pamukkale–Akköy–Karahayıt Sewerage System and Treatment Plants
• Mersin Wastewater and Storm Water Collection System Project
• Denizli (Merkez, Bağbasi, Kayhan, Kınıklı Sewerage Project
• Samsun (Atakum, Çatalcam, Taflan, Dereköy) Sewerage Project

Year : 2008-ongoing (2011) Location : Nevsehir, Turkey Client : Nevşehir Municipality Financed by : EU Partnership : SWECO (SE)

The purpose of the project is to ensure the technical physical quality of Nevşehir Wastewater Treatment Plant according to European standard by providing construction supervision and technical assistance during the Project and enable municipality to manage the project implementation. The treatment process of the plant will be extended aeration activated sludge with physical and biological stages servicing:

• 125,000 persons and 9,000 industrial p.e. (stage 1 – Year 2020)
• 170,000 persons and 14,000 industrial p.e. (stage 2 – Year 2035)

The Project also includes the extention of existing wastewater collector to the WWTP site

• Contract Management.
• Implementation supervision and approval.
• Construction supervision (FIDIC).
• Project monitoring.
• Project planning.
• Post construction services.

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Year : 2007-ongoing (2010) Location : İçel, Turkey Client : Mersin Water and Sewerage Administration-MESKI Financed by : European Investment Bank (EIB) Partnership : DAHLEM (DE), CES (DE)

Supervision and consultancy services were given for Wastewater Project which includes construction of Karaduvar Wastewater Treatment Plant, pump stations, force mains, deep sea discharge and alteration works of 2 pump stations. Project components are:

Waste Water Treatment Plant

• The capacity for 2020: 1,050,000 P.E.
• The final capacity in 2030: 1,260,000 P.E.

Force mains

• Twin Force Main Line (10.2 km, 2 x DN1600, GRP)
• Karaduvar Line (0.9 km, 2 x DN500, GRP)

Pumping stations

• Existing Central Pump Station (Q=3x3,024 m3/h (existing), Q=2x5,300 m3/h (additional), Hm=27.5 m)
• New Karaduvar Pump Station (Q= 3 x 927 m3/h, Hm= 22 m)

Deep Sea Discharge Systems

• 2.1 km (2 x DN1,800, GRP)

• Contract Management.
• Implementation supervision and approval.
• Construction supervision (FIDIC).
• Project monitoring.
• Project planning.
• Post construction services.

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Year : 2006-ongoing (2011) Location : Eskisehir, Turkey Client : Eskişehir Water and Sewerage Administration-ESKI Financed by : European Investment Bank (EIB), Nordic Partnership : SWECO (SE)

The project includes conceptual design, consultancy and supervision services both for extension and upgrading of the process.

It can be summarized as follows:

• P.E. capacity: To increase the wastewater treatment plant capacity from 275,000 P.E. up to 650,000 P.E.(1. Stage) and 950,000 P.E. (2. Stage)
• Flow capacity: To increase maximum peak wet weather flow from 4,650 m³/h up to 11,000 m³/h  (1. Stage)
• Nitrogen and phosphorous removal units, sludge digesters and gas handling units which don’t exist in the current plant shall be introduced to treatment process

• Collection, review and evaluation of data
• Identification of the project criteria and preparation of conceptual design
• Preparation of the construction tender specifications and technical assistance during tendering
• Construction supervision (FIDIC)
• Project monitoring
• Project planning
• Quality control and management
• Post construction services

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Year : 2006 – ongoing (2009) Location : Eskisehir, Turkey Client : Eskişehir Water and Sewerage Authority, ESKI Financed by : European Investment Bank (EIB), Nordic Investment Bank, ABN Amro Partnership : Dar Al-Handasah, Dar Engineering

In the content of the Project, design/engineering, consultancy and supervision services was given for the sewage system construction works for the areas which sewerage wasn’t connected before and septic tanks are used (about for 16% of population); and also for storm water construction works which has flood risks.

Main project components are:

• Total length of the sewerage network: 94.13km
• Total length of storm water: 5.58 km
• 1 wastewater pumping station (Pressurised line: 1.2 km)

• Collection of basic data and evaluation of available project studies and literature
• Detailed design and preparation of tender documents on the basis of FIDIC rules (Red Book) for all physical construction measures (wastewater and storm water network)                                                                      
• Assistance to Municipality during evaluation of construction tenders
• Site supervision in compliance with FIDIC Rules
• Management support for Project Implementation Unit
• Technical assistance during commissioning and failure notice period

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Year : 2002 – 2004 Location : Izmir, Turkey Client : Iller Bank Partnership : -

Preliminary design for wastewater and storm water collection systems is prepared. The design characteristics of the project are given below:

• Project population and design year: 66,000 / Year 2038
• Wastewater discharge: 282 l/s
• 169 km sewerage collection network.
• 7 pumping station.
• 65 km storm water network.

• Data collection and evaluation
• Topographical and geotechnical surveys.
• Preliminary and final design of storm water, wastewater systems and pumping stations.
• Preparation of BoQ and technical specifications.
• Preparation of tender documents.

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Year : 2000-2002 Location : Sakarya, Turkey Client : Iller Bank Partnership : -

The project includes engineering and consulting services to  design a wastewater treatment plant in Gölkent and Akyazı. The purpose of the project was to protect environment by treating the wastewater coming from the final collector before it is discharged to Karaca River.

Akyazı Wastewater Treatment Plant Project includes a biological activated sludge wastewater treatment process followed by sludge treatment facilities.

• Population capacity: 127,000 P.E. for 2035
• Flow capacity: 422 /sec

Gölkent Wastewater Treatment Plant Project includes use of facultative stabilization ponds.

• Population capacity: 12,140 PE for 2035
• Flow capacity: 29.6 l/sec.

• Collection of basic data and evaluation of available project studies and literature.
• Topographical and geotechnical surveys.
• Hydrogeological investigations.
• Preparation of planning reports.
• Conceptual design of wastewater treatment plan.
• Detailed design.
• Preparation of BoQ.
• Preparation of tender documents.

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Year : 1998-2002 Location : Icel, Turkey Client : Iller Bank Partnership : -

The aim of the project is to treat the wastewater coming from the final collector before discharging into the Mediterranean Sea. The pre-treated and chemically treated wastewater will be discharged to Mediterranean Sea.

The project comprises the project report, batimetry and geotechnical surveys,  pre- EIA report and all implementation projects of architectural, civil, electrical, mechanical details. Project components are:

• Population capacity: 638,000 PE for 2035
• Flow capacity: 9,500 m³/h.
• Deep sea discharge pump stations: 4+1 units (650 lt/sec.)
• Deep sea discharge line: 1.805 m length, 23.5 m depth

• Data collection, evaluation of awailable projects and literature 
• Topographical and geotechnical surveys 
• Hydro-geological Surveys
• Preparation of planning reports.
• Detailed design of related structures
• Preparation of implementation projects
• Preparation of BoQ and technical specifications
• Preparation of construction tender documents

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Year : 1998-1999 Location : Denizli, Turkey Client : Authority for the Protection of Special Areas (APSA) Partnership : -

The project includes design and supervision services for wastewater network and wastewater treatment plant of Pamukkale and its surrounding. Project components are:

• Project design year: 2016
• Project Population: 33,935 PE
• Wastewater network: 50 km totally (Pamukkale 23 km, in Karahayıt 10 and in Akköy 17 km)
• WWTP : 2 plants (in Pamukkale 18,650 PE, in Karahayıt 15,285 PE).

• Collection of basic data and evaluation
• Detailed design and preparation of tender documents on the basis of FIDIC rules (Red Book) for all physical construction measures
• Assistance to Municipality during evaluation of construction tenders
• Site supervision in compliance with FIDIC Rules

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Year : 1992-1993 Location : İçel, Turkey Client : Iller Bank Partnership : -

Existing wastewater system has been reviewed and used where they were adequate. The project components are:   

• Project population: 1,500,000 PE
• Wastewater network: 735 km
• Wastewater discharge: 3.2 m3/sec
• 6 pump stations
• Storm water line: 49 km

• Data collection and evaluation
• Geological and topographical investigations
• Preparation of final designs 
• Preparation of BoQ’s
• Preparation of tender documents

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Year : 1999 - 2001 Location : Denizli, Turkey Client : Iller Bank Partnership : -

In the content of the Project, implementation projects for wastewater collection system have been prepared for 4 Municipalities (Denizli Central, Bağbaşı, Kayhan, Kınıklı)  that is in the borders of Gökpınar Reservoir Catchment Basin. Wastewater collected from the residential areas is transferred from Bağırsak Creek Valley to the Wastewater Treatment Plant that is located on the downstream of Gökpınar Reservoir. The treated wastewater shall be discharged to Gökpınar Creek.

• Data collection and evaluation 
• Geological and topographical investigations
• Preparation of final designs 
• Preparation of BoQ’s
• Preparation of tender documents

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Year : 1997 - 2000 Location : Samsun, Turkey Client : Iller Bank Partnership : -

Design for sewerage system of  Altınkum, Çatalçam, Taflan and Dereköy which covers a coastal area of 15 km in Samsun.

In the content of the Project detailed implementation design of the following has been done

•  Wastewater collection network (Total length: 240 km, diameters between ø200 and ø1000)
• 10 no.’s of pump stations
• 2 no.’s of wastewater treatment plants and sea outfall.

• Data collection and evaluation
• Geological and topographical investigations
• Preparation of final designs
• Preparation of BoQ’s
• Preparation of tender documents

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