Council manages water supplies to support the health and well-being of the community.
Water is an essential need for individuals and commercial operations. Council provides sufficient quantities of potable water for domestic and commercial needs and public amenities. Council water management is required under a number of legal statutes.
Westport water supply
The Westport Water Supply is from a creek catchment in the hills behind Westport and is transferred to the reservoirs by a series of underground tunnels and pipes. These tunnels combined, are over 1,900 metres in length and were constructed around 1903, which in those days was a remarkable feat. The water is then coagulated for colour sediment and bacteria removal, treated with lime for pH adjustment, UV for protozoa removal and chlorination for additional treatment of bacteria and viruses.
Other water supplies
There are different levels of water treatment in Buller.
- The Cape Foulwind water supply (Wilsons Lead Road and Bulls Rd) is a stock supply not intended for human use.
- A permanent boil water notice applies for Little Wanganui Subdivision, Mōkihinui, Ngakawau/ Hector, South Granity and Waimangaroa.
- Ngakawau/Hector and South Granity are privately operated supplies
- Mōkihinui has a community operated supply.