Kawakawa Bay Wastewater Scheme
What is Manukau Water Limited doing in Kawakawa Bay?
Currently wastewater discharged from properties in Kawakawa Bay is treated and disposed of individually on site. Unfortunately these systems are no longer coping and have caused pollution to the point that the beaches have been closed for a number of years.
To remove the wastewater contamination Manukau Water Limited is installing a piped wastewater system and will be co nnecting approximately 260 properties to this system to allow for the decommissioning of individual septic tanks.
A major project to clean up one of Auckland’s most scenic coastal areas has been given a green light to proceed.
Manukau Water Limited has signed a contract for construction to recommence on a wastewater collection and treatment system for Kawakawa Bay in Auckland.
The agreement means that physical works on the project will commence at the beginning of the construction season in October 2009. The construction period is estimated to take fifteen months, meaning the project will be completed early 2011.
Kawakawa Bay has had a problem with wastewater pollution as a result of effluent discharge from failing septic tanks for some time. It was Manukau City Council’s view in 2005 that this situation required a solution and fixing the problem was perceived to have strong support from the local community.
Delays in the ability to secure all the necessary resource consents has resulted in construction being delayed, but with all consents now in place and the construction contract agreed, the project can now be built.
The wastewater reticulation and treatment facility will be built by Fulton Hogan Limited.
Manukau Water Limited chief executive Raveen Jaduram said the project will clean up an environment that is used by thousands of Aucklanders.
"Kawakakawa Bay is a beautiful area that is used by thousands of boaties every year. Cleaning up the beach and the bay will ensure that this beautiful environment is an amenity that is available for generations to come," he said.
What work is involved?
There are a number of separate but interlinked portions of the work:
- Public reticulation – This is the pipework that connects all the properties and transports the wastewater to the Treatment Plant.
- Private reticulation – To ensure the treatment plant works as effectively as possible we need to minimise the amount of stormwater that gets into the system. Most of the private wastewater pipework is being replaced to achieve this. This also includes the pipework to connect the property to the public system.
- Vacuum Pump Station – Because Kawakawa Bay is relatively flat and the treatment plant is located at a higher level than the township a pump station is required to transport the wastewater.
- Treatment Plant – A state of the art treatment facility is being constructed to treat the wastewater.
- Effluent disposal – After treatment the effluent (treated wastewater) is discharged to our forest which will take up the water and nutrients. A stream discharge facility is also to be constructed as a back up disposal point.
To view the project updates click below
Project update July 2010 (17.0kb)
Project update May/June 2010 (53.0kb)
Project update January 2010 (28.0kb)