Our Water Systems

The Powers Creek Water Service Area (legacy Westbank System) provides filtered, UV disinfected and chlorinated water to approximately 5,000 customers and 385 hectares (ha) of agricultural land.

The Westbank Irrigation District was originally constructed to supply irrigation water to agricultural customers.

The Powers Creek watershed provides 10,500 mega litres (ML) of raw water to the system and includes six reservoir lakes: Tadpole, Dobbin, Horseshoe, Paynter, Jackpine and Lambly. The water flows into Powers Creek and a downstream intake diverts water to the Powers Creek Water Treatment Plant, which treats water through rotating screens, flash/rapid mixing, coagulation, flocculation, clarification, filtration, UV disinfection and chlorination processes before distributing to customers via a 110 kilometre distribution system.

The legacy Westbank Irrigation District was transferred to the City of West Kelowna on January 1, 2011. The transfer was required under the terms of municipal incorporation in December 2007.

System assets include six reservoir lakes, seven dams, 10 head gates, one diversion pipeline, one intake, one Level 4 treatment plant, three man-made reservoirs, two pump stations, and 110 kms of water main.

The system serves Gellatly, Glenrosa, Smith Creek and Westbank.

Now that the Rose Valley Water Treatment Plant is operational, one local service area – known as the Rose Valley Water Service Area – combines the former Rose Valley-Lakeview, West Kelowna Estates and Sunnyside/Pritchard Systems into one. 

The Rose Valley Water Service Area serves approximately 7,800 connections in Boucherie Centre, Lakeview Heights, Pritchard, Shannon Lake, South Boucherie/Sunnyside, Rose Valley, West Kelowna Business Park and West Kelowna Estates.

The 244-square-kilometer Lambly (Bear) Creek Watershed provides 6,100 mega litres (ML) of raw water storage for the Rose Valley system and includes Esperon Lake which feeds Big Horn Reservoir. Big Horn Reservoir empties into Lambly Creek, which is then diverted into Rose Valley Reservoir.

System assets include four reservoir lakes, three dams, two head gates, one intake, five reservoirs, four pump stations, a diversion channel, a chlorination facility, and approximately 115 kms of water mains.