Supplier log in
Bundle 11A: Shotover WWTP Upgrade
Details
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Tender Closed
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| RFx ID : | 21886124 |
| Tender Name : | Bundle 11A: Shotover WWTP Upgrade |
| Reference # : |
C-19-106
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| Open Date : | Monday, 4 November 2019 4:30 PM (Pacific/Auckland UTC+13:00) |
| Close Date : | Friday, 6 December 2019 12:00 PM (Pacific/Auckland UTC+13:00) |
| Tender Type : | Request for Quotations (RFQ) |
| Tender Coverage : | Sole Agency [?] |
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| Exemption Reason : | None |
| Required Pre-qualifications : | None |
| Contact : |
Doreen Zimmermann procurement@qldc.govt.nz |
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Shotover waste water treatment plant (WWTP) services the Wakatipu Basin communities of Queenstown, Arthurs Point, Frankton, Kelvin Heights/Willow Place, Quail Rise, Shotover Country, Lake Hayes Estate, Lake Hayes and Arrowtown. New inlet works were commissioned in 2013 and Stage 1 works commissioned in 2017 (Stage 1 works consisted of installation of an MLE reactor, clarifier, UV disinfection system, recycled effluent system, sludge dewatering and loadout facility and operation facility). QLDC population and flow predictions indicated the new plant was expected to meet treatment demands of the Wakatipu Basin communities until 2025/26. However, flow and load growth has been such that the anticipated 2026 flow was reached in 2018 and the 2026 nitrogen load limit is being approached.
Master plan designs included as part of the Stage 1 design included a proposed scope of development of the treatment process to cater for the projected flows and loads (Stage 3). Breaching the Consented Nitrogen loading triggers the consent requirement to build the Stage 3 Treatment Plant. The preferred masterplan option for the Shotover WWTP envisioned duplicating the Stage 1 MLE facilities. The Programme Control Group approval for Shotover WWTP Stage 3 requested the inclusion of the inlet works in the design of Stage 3, although the Concept Design Report from Beca discussed this, it did not cost the inlet works upgrade in the final Concept design cost.
Once Stage 3 is commissioned, the anticipated treatment capacity will meet demands such that the existing oxidation ponds can be decommissioned.
For information, Stage 2 of the masterplan was the land disposal field that was commissioned in February 2019.
This project will help to deliver waste water treatment services to the Wakatipu Basin communities projected through to 2048. The bundle currently includes the design and implementation of the WWTP and inlet works upgrades and decommissioning process for the three oxidation ponds. See the plan below for high level proposed locations for the plant upgrades. Dark shaded area shows the location of new infrastructure.
This tender has been awarded.
- Beca Ltd - 21, Pitt Street, Auckland, 093009000, NEW ZEALAND
Award Date: Friday, 20 December 2019 (Pacific/Auckland UTC+13:00)
Date RFx was completed/updated: Thursday, 7 October 2021 10:41 AM (Pacific/Auckland UTC+13:00)
