Water Stewardship Information Sources
| ID | 1713 |
|---|---|
| Citation | Summit Environmental Consultants Ltd. 2012. Shuswap Project Water Use Plan: Flow Disruptions at Wilsey Dam, Implementation Year 1 Final Report on Findings, Study Period: April 2009 - Mar 2011. Prepared for BC Hydro |
| Organization | BC Hydro |
| URL | http://www.bchydro.com/content/dam/BCHydro/customer-portal/documents/corporate/environment-sustainability/water-use-planning/southern-interior/flow-disruptions-wilsey-dam-shuworks-1-final-report-december2012.pdf |
| Abstract/Description or Keywords | BC Hydro recently completed a three year field study on flow disruptions in the Middle Shuswap River caused by sudden outages at the Shuswap River Generation Station (SRGS). The purpose of this study was to assess the effectiveness of upgrades to the bypass valve (BPV) in reducing the frequency and magnitude of flow disruptions and the resulting impacts on fisheries populations downstream of Wilsey Dam. Summit was recently retained by BC Hydro to complete a technical assessment of these data. The primary objectives of this assessment were to: x Summarize the magnitude, duration and rate of water level changes during SRGS outages; x Assess the potential impacts on fisheries populations in the Middle Shuswap River due to water level reductions; x Determine the effectiveness of the BPV upgrades according to performance measures outlined in the WUP; x Identify information gaps critical to the above tasks; and x Provide recommendations, as necessary. Summit completed a preliminary assessment on the effectiveness of the BPV upgrades which was submitted to BC Hydro on May 24, 2012 . The following letter provides a technical assessment of flow disruptions and the potential impacts on fish and fish habitat downstream of Wilsey Dam. This letter also elaborates on the effectiveness of the BPV upgrades from an operational and fisheries perspective. A gap assessment identifies additional data and information to refine this assessment and is presented below along with recommendations on the next steps. reservoir, fisheries, aquatic habitat, environmental flows, low flows |
| Information Type | report |
| Regional Watershed | Shuswap |
| Sub-watershed if known | Shuswap River |
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| Comments | |
| Project status | complete |
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