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Hurunui District Councilhurunui District Council. Tender - 139546404

The HURUNUI DISTRICT COUNCIL has issued a Tender notice for the procurement of a Hurunui District Councilhurunui District Council. Hdc 26-006 Hawarden Oxidation Ponds Desludging. Rfx Id: 33848917. Reference: Hdc 26-006. Close Date: Wednesday, 29 April 2026, 12:00 Pm (Pacific/Auckl... in the New Zealand. This Tender notice was published on 15 Apr 2026 and is scheduled to close on 29 Apr 2026, with an estimated Tender value of Refer Document. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 139546404, while the tender notice number is NZ-1158920 and Registering on the platform.

Procurement Summary

Country: New Zealand

Summary: Hurunui District Councilhurunui District Council. Hdc 26-006 Hawarden Oxidation Ponds Desludging. Rfx Id: 33848917. Reference: Hdc 26-006. Close Date: Wednesday, 29 April 2026, 12:00 Pm (Pacific/Auckl...

Deadline: 29 Apr 2026

Posting Date: 15 Apr 2026

Other Information

Notice Type: Tender

TOT Ref.No.: 139546404

Document Ref. No.: NZ-1158920

Competition: ICB

Financier: Self Financed

Purchaser Ownership: Public

Tender Value: Refer Document

Purchaser's Detail

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Tender Details

Hurunui District CouncilHURUNUI DISTRICT COUNCIL. HDC 26-006 HAWARDEN OXIDATION PONDS DESLUDGING. RFx ID: 33848917. Reference: HDC 26-006. Close Date: Wednesday, 29 April 2026, 12:00 PM (Pacific/Auckland UTC+12:00). Tender Type: Request for Tenders (RFT). Region: Canterbury Overview: Hurunui District Council is looking for a suitably qualified contractor to undertake the desludging of the Hawarden oxidation ponds. Hurunui District Council (HDC) operates the pond-based wastewater treatment plant of Hawarden. The plant consists of two oxidation ponds. Pond and sludge surveys were undertaken in 2024, which showed sludge accumulation requiring desludging to ensure continuing discharge quality in line with the conditions set out in the Resource Consents. The following tender is for the desludging of both treatment ponds and the disposal of the sludge in geotextile bags to be located in a lined containment bund on adjacent land. The design and construction of the bund, the supply and installation of the geobags as well as of the filtrate return pumping station are also part of the contract. The work includes, in particular: · The preparation of the ground and construction of a lined containment bund in the location indicated on the aerial photo and specified in the attached drawings (refer to Appendices 3 and 4). · The supply and installation of adequately sized geotextile dewatering bags. · The design and construction of a filtrate return pumping system, its connection to the lowest point of the bunded area and the supply and installation of a discharge line to the inlet of the primary treatment pond. · The desludging of the treatment ponds using a sludge dredge or similar and the pumping of the sludge into the geotextile bags with optimised injection of a polymer to promote rapid dewatering. · The establishment, after a minimum of two months after the final filling of the bags, of the quantity of sludge removed through a sludge dryness analysis and bag volume calculatio...

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