Lake Ohau Alpine Village water supply upgrade
Please find the information below on the village's upcoming water supply upgrade.
The Lake Ohau Alpine Village water supply upgrade community survey closed on the 28 January 2019.Thank you for your input. The survey results will feed into and help inform what the detailed design has to cater for.
The survey went really well and will give Council and the Ohau Community Task Force a good steer to what the community would like to see with the proposed upgrade of the Ohau Village water supply. The task force is working with Council to explore further options for what is best for the community and will keep the community updated.
If you have any questions about the upgrade, please email us on ohauwaterupgrade@waitaki.govt.nz
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Lake Ohau Alpine Village water supply survey results and comments - April 2019
(PDF, 611.8KB)
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WDC - general responses to survey comments-April 2019
(PDF, 37KB)
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Lake Ohau WS Upgrade Newsletter April 2019
(PDF, 1.9MB)
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Lake Ohau water supply upgrade email correspondence Dec 2018 to March 2019
(PDF, 167.3KB)
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Design Memo Following Public Meeting-Fluent Solutions Ltd-Jan 2019
(PDF, 10MB)
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Lake Ohau Upgrade - Frequently Asked Questions-December 2018
(PDF, 58.4KB)
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Lake Ohau Upgrade - Fluent Report-August 2018
(PDF, 1.6MB)
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Lake Ohau Information Leaflet- December 2018
(PDF, 1.7MB)
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Ohau Water Sampling Results-December 2018
(PDF, 29.9KB)
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New treatment plant location map-December 2018
(JPG, 314.9KB)
Public engagement
We held a public meeting to discuss the upgrade and answer any questions about the upgrade on 3 January 2019, 11am at Lake Ohau Lodge. Following the meeting, we sent residents and ratepayers a survey so they could tell us what level of service they wanted the upgrade to deliver. This survey is now closed and the results will be used to help direct the design.
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South Hill water main renewal works
Whitestone Contracting Limited, under contract to Council, will soon be renewing water mains in the South Hill area. This work is due to start in late September 2018 and should be completed by June 2019.
Water mains in the South Hill area are being renewed in four stages. Stage 1 began in February 2017 and was recently completed. The map below shows the areas that will be affected during each stage of work, including this one (Stage 2).
Once completed, the main renewals will help improve water quality and pressure in the South Hill area and will also reduce the risk of supply failure in the future.
South Hill Water Mains Stage 2 - Letter to Residents.pdf (PDF)
Herbert-Waianakarua-Hampden-Moeraki water supply upgrade
This project will see a pipeline built from Oamaru to Hampden to deliver high drinking quality water (which meets the NZ Drinking Water Standards) to communities in Herbert, Waianakarua, Hampden and Moeraki.
For more information about the project and regular updates, please click on the image.
New Zealand Drinking Water Standards
To improve the quality of drinking water supplied throughout New Zealand, the Government introduced the Drinking Water Standards for New Zealand. In 2008, the new standards became mandatory for all councils. The Drinking-Water Standards for New Zealand provide requirements for drinking-water safety by specifying the:
maximum amounts of substances or organisms or contaminants or residues that may be present in drinking-water
criteria for demonstrating compliance with the Standards
remedial action to be taken in the event of non-compliance with the different aspects of the Standards.
To comply with the new Standards (the law), Council is in the process of upgrading 21 of the District’s 23 water supplies. Council started planning for the upgrades after the new Standards were introduced and included time frames and budgets in the Waitaki Community Plan 2009-19.
After the Plan was adopted, the Government allowed communities more time to meet the Drinking Water Standards and a revised timetable was adopted. For more information on the Drinking Water Standards please go to New Zealand Ministry of Health website.
Upgrade process
As Council works its way through the upgrade process, it is consulting with water supply consumers to ensure it gets the best outcomes for each community. When looking at how it will upgrade each supply to meet the New Zealand Drinking Water Standards, Council considers three main options:
Building better treatment plants to treat water from current sources, or
Finding new, more easily treated water from different sources and treating this, or
Supplying water from semi-centralised treatment plants to neighbouring supplies.
Council selects the preferred upgrade option by assessing how much it will cost to build and run, and whether we are confident it will consistently produce the very high quality water required to meet the Standards. Preferred options are presented to and discussed with each water supply community before a final decision is made.