HomeServicesEngineeringWaterGreater Vernon Water → Water Sources

Water Sources

The Regional District of North Okanagan - Greater Vernon Water (GVW) delivers an average of 24 billion litres of water through a grid of 620km of pipelines including 42 pump stations to more than 45,000 customers every year. 

Our water system is very complex, so you may not always know your drinking water source.

The Duteau Creek water source, via the Duteau Creek Water Treatment Plant (DCWTP), supplies approximately 55% of the utility’s annual water.  Under normal operational conditions, the DCWTP provides water to the District of Coldstream, Electoral Areas “B, C” and a small portion of “D” and Spallumcheen.  The Kalamalka Lake water source supplies approximately 45% of the utility’s water via the Mission Hill Water Treatment Plant (MHWTP).  Under normal operational conditions, the MHWTP provides water to the City of Vernon and some areas of the District of Coldstream. GVW has the ability to mix the two water sources or utilize one water source to best meet customer needs.

There are two, small water systems that draw from Okanagan Lake that are part of GVW, the Outback and Delcliffe.  A well located on Coldstream Ranch (Well #1) is utilized to meet high water demands or can be turned on in an emergency.

Every year approximately 55% of Greater Vernon’s water is used for agriculture irrigation use.  GVW has dedicated some water sources to agriculture irrigation only.  These sources are Deer Creek (King Edward Lake), Well #2 on Coldstream Ranch and Goose Lake.

Kalamalka Lake

Duteau Creek

Okanagan Lake


Agriculture Irrigation:
During the irrigation season from May to September, water use increases dramatically, these sources have been dedicated to agriculture irrigation use:


Please direct enquiries to:
Phone:  250-550-3700
Fax:      250-550-3701
E-mail:  [email protected]