skip to main content

Project One - Upgrades to the Waipukurau/Waipawa/Otane Wastewater System

Council is considering three options to bring the Waipukurau/Waipawa/Otane Wastewater Systems up to standard - to meet compliance along with the environmental and cultural aspirations of the community.

Read more about the project and options here.

Background

In 2019, Central Hawke's Bay District Council formally responded to an environment court order concerning the Waipawa Wastewater Plant and outlined a proposed long term plan for the future of Waipawa, Waipukurau and Otane’s wastewater. Following two independent reviews, we know that the current Waipawa and Waipukurau plants will never be able to achieve compliance. This means that in order to meet regulations, major upgrades will need to take place. Otane’s current Wastewater Treatment Plant also required an upgrade to meet consent. To help guide our direction, a formal analysis took place through 2018 and 2019 which resulted in the decision that Otane’s wastewater should be conveyed toward Waipawa for treatment and discharge.

Through all of this, Council has been working closely with community members to develop options which focus on generational thinking to ensure a positive balance between the environmental health of our District, the strength of our infrastructure to enable Central Hawke’s Bay to Thrive, and affordability for all of our people.

Learn more about the proposed future of Waipawa, Otane and Waipukurau's Wastewater.

The Existing Network

Map base v2 9 WWO Existing

Option 1: A 15-year plan to upgrade our wastewater plants and remove wastewater discharges from waterways

We upgrade our wastewater plants across the six settlements of Central Hawke’s Bay within 15 years – removing wastewater discharges from our waterways. This includes the development of an integrated treatment and discharge wastewater system for the townships of Otāne, Waipawa and Waipukurau, that will see our wastewater irrigated to land at a single site.

The scope of these works is significant – totalling some $68.2 million of capital expenditure over the next 10 years. 

Completing this work will allow us to meet our existing Levels of Service that we have been unable to achieve, based on our current asset provision. 

This option will incur additional debt servicing of $17.5 million and $10.8 million of depreciation over the next 10 years. The Long Term Plan assumes that the Trade Waste Producers and Developers will fund a $6.5 million capital contribution. $26.8 million will be funded by the ratepayer. This equates to an average rate increase for each connected property of $642 per annum to fully fund this option.

The 15-year plan is our preferred option, because it spreads the financial burden of delivering these significant works over a longer period of time, however still achieves our ambition of removing wastewater discharges from our waterways. In doing so, it lowers upfront what is already a large financial impact on the community overall.

 

Project 1 O12

Option 2: A 10-year plan to upgrade our Wastewater Plants and remove wastewater discharges from waterways

This option accelerates the delivery of option 1 (our preferred option) for completion within 10 years, instead of 15 years.
The benefit of this option is that we remove wastewater discharges from our waterways within 10 years, addressing the cultural and environmental impacts our discharges create sooner.

Completing this work will also allow us to meet our existing Levels of Service that we have been unable to achieve, based on our current asset provision – just in a much quicker timeframe. The capital works to be undertaken in the next years under this option is $74.2 million.
This option will incur additional debt servicing of $21.4 million and $13.6 million of depreciation over the next 10 years.
This equates to an average rate increase for each connected property of $836 per annum to fully fund this option.

This option is not our preferred option because of the additional financial hardship it places on the community, with the costs impacting over a much smaller timeframe.

P1 O12

Option 3: Doing the minimum to meet current legal compliance, and remove wastewater discharges from waterways

This option sees us walk away from our Wastewater Strategy 2020. This option will still deliver the same pipelines and work towards discharging wastewater to land, as the previous options deliver. Where this option differs is that no new treatment plants will be constructed, and only minor improvements to existing plants will be undertaken. The capital cost of this option $41.1 million over the next six years.
This option would provide for us to achieve our levels of service in the short term (5 - 10 years), however as legislative standards continue to increase it is unlikely this option will support the achievement of levels of service in the long term.

This option will incur additional debt servicing of $14.0 million and $9.2 million of depreciation over the next 10 years. This equates to an average rate increase for each connected property of $557 per annum to fully fund this option.

This option is not our preferred option. While it has the lowest cost, it also comes with significant risk. While it will remove our direct discharges to our waterways, this option does not include additional work that will treat our wastewater to a higher standard as proposed in option 1 and 2.
This option would likely see us requiring to further invest in wastewater treatment plants in the next 10 years, in the event that only a short resource consent was granted or new legislative requirements for water quality were enforced. This option also does not allow for the projected population growth we expected to see across the district.

This option represents the early phases of projects in Options 1 and 2 and treatment improvement projects would cease once discharges are moved to land.

Loading...

Central Hawke's Bay District Council - Copyright © 2021 Central Hawke's Bay District Council

Disclaimers and Copyright
While every endeavour has been taken by the Central Hawke's Bay District Council to ensure that the information on this website is accurate and up to date, Central Hawke's Bay District Council shall not be liable for any loss suffered through the use, directly or indirectly, of information on this website. Information contained has been assembled in good faith. Some of the information available in this site is from the New Zealand Public domain and supplied by relevant government agencies. Central Hawke's Bay District Council cannot accept any liability for its accuracy or content. Portions of the information and material on this site, including data, pages, documents, online graphics and images are protected by copyright, unless specifically notified to the contrary. Externally sourced information or material is copyright to the respective provider.

© Central Hawke's Bay District Council - / +64 6 857 8060 / customerservice@chbdc.govt.nz