The Richmond Valley Council says Casino tap water is safe to drink again without boiling after nearly two weeks.
The council lifted a boil notice for the town late Wednesday afternoon in consultation with NSW Health.
The change meant residents no longer needed to boil tap water before drinking or using in food preparation after being advised to start doing so on 24 February.
Richmond Valley Council Manager Infrastructure Services David Timms advised Casino residents to flush household taps with running tap water for two to three minutes before drinking the water, including taps most distant from water meters.
Those taps were typically in backyards, Mr Timms said via a council statement.
Extensive flushing and testing had confirmed Casino’s town water supply system was filled with freshly treated water safe to drink, the statement read.
Casino’s official boil water notice in late February came in response to what authorities said was poor raw water quality after high-intensity rainfall in the upper catchment of the Richmond River and water treatment failure.