The Westside Regional Wastewater Treatment Plant is located on Gellatly Road (in Westbank) and receives wastewater from the City of West Kelowna, the District of Peachland and Westbank First Nation Reserves No. 9 and 10.
See how our wastewater treatment plant works
About the treatment plant |
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The water treatment plant provides wastewater treatment for approximately 42,000 people. The plant capacity is 16.8 M3/day with a current average day flow is 11 M3/day. Wastewater enters the facility, goes through 3-stages of treatment before being pumped back into Okanagan Lake. The Westbank ProcessDid you know? Our wastewater treatment plant is an internationally recognized process of treating wastewater. Wastewater enters the plant through a Parshall flume (to provide control and monitoring of flow) and is then screened and degritted prior to receiving primary clarification. The plant operates a secondary treatment process called the “Westbank Process,” an internationally recognized process of treating wastewater. The Westbank Process is based on the 3-Stage Bardenpho process with provisions for a Return Activated Sludge denitrification upstream of the anaerobic zone. Each bioreactor feeds a dedicated secondary clarifier. The effluent undergoes tertiary treatment via filtration and Ultra Violet disinfection. The tertiary treated effluent from the plant is discharged into Okanagan Lake through an outfall. The primary solids stream at the treatment plant undergoes fermentation, while the waste secondary solids stream is treated with a DAF thickener. Both streams are pumped to a centrifuge for dewatering with the dewatered sludge trucked off site for disposal. |
Source control |
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What you put down the drain at home or work can ultimately affect the quality of our Okanagan Lake drinking water source. This is why stopping pollutants at the source is so important. By not putting certain items down the drain, we help protect our wastewater treatment infrastructure. Source control is
What is source control? |
What are biosolids? |
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Biosolids is a nutrient-dense organic material made from treated sewage sludge. They are a beneficial resource containing essential plant nutrients. Stickland Composting has a contract to manage the biosolids generated from the Westside Regional Wastewater Treatment facility. The material is made into compost and is applied to agricultural property at the Stickland Composting site. The Provincial Government is reviewing information and regulations related to biosolids, land application and the Organic Matter Recycling Regulation and related requirements. |
Reports |
Collection System ReportOkanagan Lake Collaborative AgreementWestside Regional Wastewater Treatment Plant Odour AssessmentWestside Regional Wastewater Treatment Plant |