TasWater has restarted its Tullah water treatment plant after weeks of trucking in water following an oil spill at Lake Rosebery.
The West Coast lake, which supplies the plant, was shut down last month over concerns that oil could damage equipment.
Incident Controller Matt Jordan said tests show the spill has not impacted the sub-surface water intake pipe.
“Multiple intake water samples taken from the site have not detected any contamination,” he said.
“Given that and the fact that our intake is approximately 26 metres below the water surface and some distance from the shore, we are confident we can safely resume supply at Tullah.”
TasWater is putting extra “operational precautions” in place while the spill cleanup continues, including manual monitoring at the plant and increased water quality testing.
Additional testing will run for a month and Jordan warned that if results show any issues, the plant could shut down again and water carting would resume.
“We appreciate everyone’s efforts to conserve water while we continue to deal with the impact of the oil spill,” he said.
The Environment Protection Authority has confirmed that around 26 kilometres of shoreline has been affected by oil.
As clean-up efforts continue, the lake will remain closed until at least February 14.
