Maintenance means some Greater Vernon residents will be turned onto an alternate water source this week.

The Regional District of North Okanagan (RDNO) is turning off the Kalamalka Lake water source temporarily for regular maintenance on Wednesday Dec. 4. All customers served by Greater Vernon Water will be receiving water from the Duteau Creek water source.

During the shutdown, divers will be inspecting the intake pipe from the intake point to the Kalamalka lake pump station. Additionally, the pipe from the Kalamalka lake pump station to the Mission Hill Water Treatment plant will be cleaned.

Water will be supplied to the entire system from the Duteau Creek Water Treatment Plant until Friday, Dec. 6.

"Customers who are not normally on the Duteau Creek water source may notice that the water is softer and has a lower alkalinity and pH," the RDNO advises, as this may be of interest to those customers who have in-home water treatment systems or aquariums.

Customers will be notified of any updates at  (filter by Water Notices). You can also subscribe to receive email updates at .

If you have any questions, contact the RDNO utilities department at 250-550-3700.