Water Stewardship Information Sources
| ID | 1275 |
|---|---|
| Citation | MJ Milne and Associates Ltd. 2009. Watershed Risk Analysis for Tranquille River. Prepared for BC Ministry of Environment. |
| Organization | Ministry of Environment |
| URL | http://a100.gov.bc.ca/pub/acat/public/viewReport.do?reportId=18315 |
| Abstract/Description or Keywords | A risk analysis has been completed in the Tranquille River watershed for the BC Ministry of Environment. Funding for the project was received from the Forests for Tomorrow program. The Tranquille River drains an area of approximately 45,000 ha to the north and west of Kamloops, BC. Two basins and one residual area have been delineated for the analysis [Resource map - Appendix A]. Two major forest licensees operate within the crown land portion of the watershed; the remaining area is park (35%) or private land (3%). The watershed was selected for analysis based on extensive mountain pine beetle (MPB) infestation and mortality in upland areas combined with high anadromous fish and fish habitat values on the lower mainstem, and community watershed designation. The analysis is follow-up to the Kamloops Timber Supply Area (KTSA) potential risk rating evaluation1 . The watershed supports populations of anadromous salmon including chinook, coho, and steelhead trout. Anadromous species are limited to the lower 6 km of the Tranquille mainstem due to a series of falls that restrict passage. Resident rainbow trout are found throughout the system and one or both of Truda and Tranquille lakes have been stocked with Kokanee salmon. Earth fill dams are present on both Truda and Tranquille Lakes; originally designed to augment low flows on the lower Tranquille mainstem for irrigation and/or fish access purposes. There are 51 water licenses either active or pending in the Tranquille River watershed. Eleven of the active licenses are used for domestic water purposes - three on the Tranquille River mainstem and eight on springs within or near to the Alpine Valley sub-division [Appendix A]. The remaining licenses are used primarily for irrigation and storage. Background, methods and assumptions, analysis, and recommendations are provided in the following sections. watershed assessment, aquatic habitat, fish habitat, salmonids, mountain pine beetle, water supply, water quality |
| Information Type | report |
| Regional Watershed | Thompson |
| Sub-watershed if known | Tranquille River, Kamloops Lake |
| Aquifer # | |
| Comments | |
| Project status | complete |
| Contact Name | Michael Milne |
| Contact Email | [email protected] |