Drinking water standards upgrade

JULY 2019

Official opening of Whitianga's new water treatment plant 

Whitianga’s new water treatment plant is now officially open, as of 18 July 2019, marking an important milestone in our drinking water standards upgrade project.

Our Council is spending close to $16 million over the next three years to upgrade 10 water treatment facilities across our district.

The Whitianga water treatment plant at Moewai Rd was the first plant to be upgraded, and over the last few months Masons Engineers has been building a new $2.8 million water treatment facility on the same site as the old one. This is a brand new plant (pictured above), with the latest technology and methodologies for treating our water.

Tairua and Pauanui are the next towns on the  upgrade schedule, with replacement plants due to be commissioned in September and later this year respectively.

The next town on the upgrade schedule is Coromandel, with the remaining treatment plants across the district following on behind that.

All of these upgrades will ensure our drinking water quality complies with the current NZ Drinking Water standards.

The drinking water treatment plant at Thames was upgraded more recently than the other plants, and is not due for an upgrade as part of this project.

(Pictured: The new water treatment facility in Whitianga)

 

APRIL 2019 

Making progress on our drinking water treatment plant upgrades

Work is well underway with our programme to upgrade ten water treatment facilities across our district.

The first plant to be upgraded is our Whitianga water treatment plant, where Masons Engineers has been building a new $2.8 million water treatment facility on the current site. This is a brand new plant (pictured below), with the latest technology and methodologies for treating our water. Good progress has been made and this plant is expected to be in service by the end of May or early June.

Tairua and Pauanui are the next towns on the schedule and an update on works is provided below:

Tairua: Masons Engineers has been appointed for the works to replace the water treatment plant in Tairua and the design is complete, and the Building Consent Application submitted. We are expecting Department of Conservation approval of a new lease site by the end of May and, pending this, site works will commence in earnest in early June 2019 with commissioning due in September 2019.

Pauanui: Design is also well advanced for upgrade work at Pauanui and some enabling works are underway. The treatment plant expected to be commissioned later this year.

The amalgamation of the two Pauanui water treatment plants has necessitated that a new main be installed between the existing high elevation reservoir and the town reticulation. This is because the existing 35 year old pipe is not rated for the pressure from the reservoirs. The installation of the new main pipe is almost complete with only the final connection at each end remaining.

Plans to improve foundation capability for the new plant building are being incorporated with earthworks that are underway to maximise the separation between the proposed new site and the emergency wastewater storage pond. Excess cut material from the Hopper development that is being undertaken between the tennis courts and the wastewater treatment plant is being used to fill the proposed building site and this work is also nearing completion.

Work schedule: 

The next towns on the upgrade schedule are the three Whangamata plants and Onemana, followed in the final year by Coromandel, Matarangi and Hahei.

All of these upgrades will ensure our drinking water quality complies with the 2005 (2008) NZ Drinking Water standards. For more information on our compliance with the government’s new testing regime see here.

"We're being proactive about what we need to do to keep improving the quality of our drinking water supplies and we have budgeted $15.83 million in the 2018-2028 Long Term Plan for the upgrade programme, which will take three years through to June 2021," says our Mayor Sandra Goudie.

"This is a significant investment to become compliant and so our communities benefit from improved quality of drinking water and public health," Mayor Sandra says.

Five of the drinking water plants that treat river-supplied water (Coromandel Town, Thames, Tairua, Whitianga, Matarangi), will use membrane filtration technology, the highest-quality treatment available for this type of water source. The Memcor brand membranes are being supplied by Evoqua Water Technologies. The other five drinking water plants will use filter/cartridge system for treating bore-supplied water.

The drinking water treatment plant at Thames was upgraded more recently than the other plants, and is not due for an upgrade as part of this project. 


OCTOBER 2018

Upgrade programme begins at our water treatment facilities

Work has started to upgrade our ten water treatment facilities across the Thames-Coromandel district.

The upgrades will ensure our drinking water quality complies with the 2005 (2008) NZ Drinking Water standards. For more information on our compliance with the government’s new testing regime see here.

Our Council continues to be proactive about what we need to do to keep improving the quality of our drinking water supplies and has budgeted $15.83 million in the 2018-2028 Long Term Plan for the upgrade programme, which will take three years through to June 2021.

Our Mayor Sandra Goudie says this is a significant investment to ensure compliance and that our communities benefit from improved quality of drinking water and public health.

The first plant to be upgraded is the Whitianga water treatment plant, where Mason Engineering is building a new $2.4M water treatment facility on the current site. .

Site works are due to start in the first week of October, 2018.

The upgrade schedule will continue to the water treatment facilities at Tairua and Pauanui over the next year. Whangamata and Onemana will be completed in year two, followed by Matarangi, Coromandel Town and Hahei.

Five of the drinking water plants, which treat river-supplied water, will use membrane filtration technology, the highest-quality treatment available for this type of water source. The Memcor brand membranes are being supplied by Evoqua Water Technologies. The other five drinking water plants will use filter/cartridge system for treating bore-supplied water.