Ashburton District Council advises that a precautionary boil water notice has been issued for the Mt Somers and Montalto water supplies, effective immediately.
Residents on these schemes should boil their drinking water, and water used in food preparation and for hygiene purposes for at least three minutes before consumption.
Monitoring equipment at both treatment plants have detected high turbidity – otherwise described as cloudiness - in the water supplies, which is likely caused by the rainfall experienced through the weekend and today.
The treatment plant equipment at both facilities are operating normally but are less effective during periods of high turbidity, and Council has issued the notices as a precautionary measure.
The precautionary boil water notices will remain in place until further advised by Council.