Public procurement notice: Contract Notice
Published: 2025-12-30
Buyer: Gaziantep Metropolitan Municipality, General Directorate of Gaziantep Water and Wastewater Administration
Country: TR
Region: TRC11
Contract type: Works
Procedure: Open procedure
CPV classification: 45200000: Building and civil engineering work
Submission deadline: 2026-02-17
EU fund: eu-funds

Technical requirements: This contract will include: 1 lot of construction of drinking water treatment plant, water reservoir and transmission line. The works covered under this contract includes the construction of the Aktoprak Drinking Water Treatment Plant (capacity: 43200 m3/day), construction of the Çaybaşı Drinking Water Treatment Plant (capacity: 19440 m3/day), construction of a 5,000 m³ water reservoir, rehabilitation of existing water reservoirs and construction of 24 km of new transmission pipelines in Oğuzeli-Çaybaşı-Yeşildere region.
Çaybaşı, formerly Çilader, Municipality and district of Ordu Province, Türkiye.
1) Participation as contractor, management contractor, a joint venture member or subcontractor, within the last ten (10) years (between 1st January 2015 and bid submission deadline) in
-	at least one (1) contract, with a value of at least ten million (10,000,000) Euro, or
-	two (2) contracts with a total value of at least fifteen million (15,000,000) Euro
that have been successfully and substantially completed and that are similar to the proposed Works. The similarity shall be based on the physical size, complexity, methods/technology or other characteristics as described in Section VI, Work’s Requirements.
The average of annual turnovers in construction works over the past five (5) financial years (2020-2024) shall be a minimum of fifteen million (15,000,000) Euro or equivalent.
Annual turnovers shall be verified by the documents certified by Certified (Sworn-in) Public Accountant or Tax Authority.
For the above or other contracts executed during the period stipulated above, a minimum experience in the following key activities: 
-	Complete construction, installation and commissioning of a drinking water treatment plant or wastewater treatment plant with average flow rate of 30,000 m3/day under one single contract, or, 
-	Complete construction, installation and commissioning of a drinking water treatment plant or a wastewater treatment plant with total average flow rate of 45,000 m3/day under two contracts.
AND
-	Complete construction and delivery of 12 km long water transmission main/water distribution network/wastewater collector/wastewater collection network/stormwater network with a diameter of at least 350 mm under one single contract, or,
-	Complete construction and delivery of total of 18 km long water transmission main/water distribution network/wastewater collector/wastewater collection network/stormwater network with a diameter of at least 350 mm under two contracts.
The Bidder must have successfully completed similar contracts as defined below within the last 10 years up to the submission deadline of the Tender. Previous experience must be proved by originals or notary-certified copies of provisional acceptance (Taking Over Certificate) or final acceptance (Performance) certificates

Eligibility requirements: 1) Participation as contractor, management contractor, a joint venture member or subcontractor, within the last ten (10) years (between 1st January 2015 and bid submission deadline) in
-	at least one (1) contract, with a value of at least ten million (10,000,000) Euro, or
-	two (2) contracts with a total value of at least fifteen million (15,000,000) Euro
that have been successfully and substantially completed and that are similar to the proposed Works. The similarity shall be based on the physical size, complexity, methods/technology or other characteristics as described in Section VI, Work’s Requirements.
The average of annual turnovers in construction works over the past five (5) financial years (2020-2024) shall be a minimum of fifteen million (15,000,000) Euro or equivalent.
Annual turnovers shall be verified by the documents certified by Certified (Sworn-in) Public Accountant or Tax Authority.
For the above or other contracts executed during the period stipulated above, a minimum experience in the following key activities: 
-	Complete construction, installation and commissioning of a drinking water treatment plant or wastewater treatment plant with average flow rate of 30,000 m3/day under one single contract, or, 
-	Complete construction, installation and commissioning of a drinking water treatment plant or a wastewater treatment plant with total average flow rate of 45,000 m3/day under two contracts.
AND
-	Complete construction and delivery of 12 km long water transmission main/water distribution network/wastewater collector/wastewater collection network/stormwater network with a diameter of at least 350 mm under one single contract, or,
-	Complete construction and delivery of total of 18 km long water transmission main/water distribution network/wastewater collector/wastewater collection network/stormwater network with a diameter of at least 350 mm under two contracts.
The Bidder must have successfully completed similar contracts as defined below within the last 10 years up to the submission deadline of the Tender. Previous experience must be proved by originals or notary-certified copies of provisional acceptance (Taking Over Certificate) or final acceptance (Performance) certificates
Offers will be opened on 17/02/2026 at 14:15 (Local time)
The works covered under this contract includes the construction of the Aktoprak Drinking Water Treatment Plant (capacity: 43200 m3/day), construction of the Çaybaşı Drinking Water Treatment Plant (capacity: 19440 m3/day), construction of a 5,000 m³ water reservoir, rehabilitation of existing water reservoirs and construction of 24 km of new transmission pipelines in Oğuzeli-Çaybaşı-Yeşildere region.

Winner: Publications Office of the European Union