Waipukurau Second Drinking Water Supply
A further update was presented to the Finance and Infrastructure Committee today - requesting that some work that is mutual between the two preferred options continue. Particularly the design to replace the rising main that runs from the current borefield to the reservoir, and also structural assessments of the two Waipukurau reservoirs.
This will ensure no time delays are seen on these items considered critical to both options once funding is announced.
A presentation on options to take forward was presented to Council at the Finance and Infrastructure Committee - presenting two potential options that could be progressed, funding dependant.
While we wait for information on our funding application, work will continue on supporting projects like the SH2 Borefield Upgrade and the Waipukurau Firefighting improvements.
During lockdown, Council prepared an application to the Crown Infrastructure Partners to support this project and ensuring CHBDC is able to deliver the best solution that aligns to our THRIVE values.
You can read more on that application on the HB 3 Waters Review Website: https://www.hb3waters.nz/assets/Uploads/HB-Regional-CIP-application.pdf
Following a robust tender process, council is currently working with a preferred supplier to negotiate a contract, and expect to have this in place by the end of 2019, ready to undertake a strategic assessment of this project in early 2020.
Due to some additional information provided to tenders, Council has extended the closing date on this tender opportunity to 18 October 2019.
We have released the design portion of this project out to tender, this closes to all prospective suppliers on Friday 27th September 2019.
We expect to have evaluated and awarded a contract to a design partner in October 2019.
5 potential locations have been shortlisted as potential water bore sources, and are currently being evaluated.
Council is also in the process of procuring the services of a partner to see this project through to build, and will be working through this tender process over the next 4-6 weeks.
Council has narrowed down a long list of potential water source locations for this project to five that are currently being assessed against a set of criteria to identify the best location to progress for investigation.
We expect this work to be completed in August 2019 - where can progress to planning the investigatory drilling for water.
Council is currently working through the options for the proposed water source, this involves assessing shallow groundwater sources and deep water sources to evaluate where to progress with the water source for the Second Supply project.
From this work, Council and our technical advisers will identify exploratory options and assess them against our multi criteria to understand where we should drill next. The criteria identifies items like reservoir placement, pipeline routes, proposed water quality, capital and operational costs, and resilience to assess the proposed options against.
This process is undertaken to ensure council makes the best informed decision when investigating the water source for the Second Supply for Waipukurau.
Unfortunately following three exploratory test bores, Council has not been able to yet secure sufficient quantities of water to progress to production bores.
Council continues to work on investigating surrounding bores, river channels and other relevant information to refine where the next location to investigate and drill may be.
Council commenced exploratory work week starting 7 January 2019 to identify a water source for the second supply. Testing will take place until council can confirm water quality and flow requirements meet those required to progress the project.
Council has investigated other potential sites as part of its due diligence process to ensure the Tukituki river proposed bore sites are the best fit. Council can confirm that the Tukituki river is the best proposed site available.
Council has identified a preferred drilling contractor for the test bore works, and have been placed on hold whilst council obtains land owner approvals.
Council is working on the proposed reservoir site and hopes to secure approval of this site shortly.
Council is currently in the consultation phase with landowners for the preferred test bore site, in conjunction with this, council is reviewing two other sites as potential bore sites.
The testing of water will be undertaken through to February 2019, to ensure the water flow and quality prior to any approval for production bores.
Due to the many activities in this project, the project is estimated to take between 24-30 months to complete.
On 4th September 2018, Central Hawke's Bay District Council (CHBDC) were issued 3 consents for drilling test bores along the Tukituki river for the second water supply project to Waipukurau.
CHBDC now moves into the next phase of tendering and procuring a drilling contractor for the works involved with drilling a test bore.
We are also further engaging with the landowners involved and affected by the test bores and our works. The testing will likely be undertaken from October 2018 through to February 2019 to ensure the water quality and flow is thoroughly sampled and tested, prior to progressing the project any further.
In conjunction with these works, CHBDC has started planning and discussing a site for a reservoir and treatment plant with Hawkes Bay Regional Council (HBRC), and will work with HBRC to find a suitable site that meets all stakeholder requirements.
Central Hawke’s Bay District Council (CHBDC) are currently investigating options for the bore location for the second water supply to the township of Waipukurau. Following an initial assessment of potential options, CHBDC is reviewing a shallow groundwater bore adjacent to the Tukituki River.
This will involve testing of the water quality and flow prior to any production bores are drilled, all works are also subject to resource consents.
A pipeline is then planned to be constructed to a reservoir, where the water will be treated and gravity fed back into Waipukurau.
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