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Increased turbidity shuts down Kal Lake water source

Apr 23, 2020 | 10:36 AM

All Greater Vernon water customers are being serviced by water form the Duteau Creek treatment plant.

The Kalamalka Lake water source was turned off Wednesday due to increasing turbidity.

“As there is no filtration at the Mission Hill Treatment Plant, this source is vulnerable to weather and other conditions that impact the lake’s water quality,” said Tricia Brett, water quality manager with the Regional District of North Okanagan. “Turbidity started to increase because melting snow led to higher water levels in Coldstream Creek which feeds into Kalamalka Lake. The quick moving water stirs up sediment in the stream channel and lake bottom causing less clarity and a reduction in water quality.”

Brett said all customers will be supplied with water from the Duteau Creek water treatment plant (DCWTP) until turbidity decreases in Kalamalka Lake.

“The UV disinfection facility is currently fully functional and water from the DCWTP meets provincial drinking water standards with full treatment by UV disinfection, clarification (diffused air flotation or DAF) and chlorine.”

Greater Vernon Water turned off the UV disinfection facility at the DCWTP on April 7 to allow for repairs to a leaking pipe but the facility has been turned back on.

“While the repairs to the Duteau Creek UV facility are not fully complete, the facility is still operational and effective at treating water with UV disinfection. We plan on completing the repairs in the fall when we are no longer experiencing freshet or high system water use,” said Brett.

“All Greater Vernon Water customers can rest assured that their water is safe and we will notify them of when the switch back to the Kalamalka Lake water source is made,” Brett added.

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