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: 2026-02-13
EU fund: eu-funds

Technical requirements: This contract will include: 1 lot of capacity increase of a wastewater treatment plant. The works covered under this contract includes the construction for a capacity increase of a wastewater treatment plant from 33600 m3/day to 67200 m3/day. The second phase of the facility will involve reinforced concrete and piping manufacturing.
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.
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 nine million (9,000,000.00) Euro, or
-	two (2) contracts with a total value of at least thirteen million five hundred thousand (13,500,000.00) 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 ten million (10,000,000.00) 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 a capacity of 30000 m3/day under one single contract, or 
-	complete construction, installation and commissioning of a drinking water treatment plant or wastewater treatment plant with a total capacity of 45000 m3/day under two contracts.
Offers will be opened on 13/02/2026 at 14:45 (Local time)

Eligibility requirements: 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.
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 nine million (9,000,000.00) Euro, or
-	two (2) contracts with a total value of at least thirteen million five hundred thousand (13,500,000.00) 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 ten million (10,000,000.00) 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 a capacity of 30000 m3/day under one single contract, or 
-	complete construction, installation and commissioning of a drinking water treatment plant or wastewater treatment plant with a total capacity of 45000 m3/day under two contracts.
Offers will be opened on 13/02/2026 at 14:45 (Local time)
The works covered under this contract include the construction for a capacity increase of a wastewater treatment plant from 33600 m3/day to 67200 m3/day. The second phase of the facility will involve reinforced concrete and piping manufacturing.

Winner: Publications Office of the European Union