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If you have any questions on the information presented, or require additional report data or attachments, please contact the Report Contact
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The B.C. Ministry of Environment, Lands and Parks has requested M. Miles and Associates Ltd.
to determine how historic land use practices have affected stream channel processes in the
Tulameen River watershed. This 1,780 km2 basin is located in southwestern British Columbia 200 km east of Vancouver.
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Author: M. Miles and Associates Ltd.
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Date Published: Feb 1999
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Report ID: 17973
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Audience: Government and Public
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The original contract specified that this work was to
be undertaken on the mainstem channel of both Tulameen River and Otter Creek. This scope was
subsequently increased to include twelve of the larger tributaries. Similar analyses were therefore undertaken on Holding, Podunk, Vuich, Jim Kelly, Champion, Britton, Lawless, Olivine, Spearing, Thynne, Granite and Asp Creeks. This overview level assessment was undertaken using existing information and air photograph interpretation. On the basis of this analysis, areas requiring field inspection have been identified and preliminary recommendations on appropriate restoration activities have been prepared.
The physical setting is described in SECTION 2. Physiographic and geological information have
been summarized, fish distributions are discussed and land use information has been compiled
on the basis of satellite imagery. A detailed review of the available hydrometric data was also undertaken. Studies in British Columbia by Barrett (1979), Church and Miles (1987) and Church (1997) have shown that there have been significant hydrometric variations over the period of instrumented record. We have therefore examined the historical variation in precipitation, snow accumulation and runoff in the study area to determine if changes in the hydrometric regime are of sufficient magnitude that they could affect stream channel processes and morphology.
A series of four historical air photos spanning the period between 1947 and 1996 have been compiled at a common scale of 1:15,000 for all of the study streams. On the basis of this information, land use impacts and changes in channel morphology over time have been documented in SECTION 3. Priorities for field inspection are summarized in SECTION 4 and mitigation recommendations presented in SECTION 5. Suggestions for future work are discussed in SECTION 6.
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Report Type
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Fish and Aquatic Habitat Information |
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Subject
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Region - Okanagan |
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Fish and Fish Habitat - Impact Assessment |
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Fish and Fish Habitat - Restoration |
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Watershed Groups - 310 - Okanagan |
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