A short study of Dutch Lake near Clearwater was carried out to find a way of improving what appears to be deteriorating water quality. Sampling carried out in 1979 and 1980 indicated low hypolimnetic dissolved oxygen concentrations, occasional high algal growth and very poor mixing at overturn. Calculated water inflows to the lake are relatively small, and the theoretical filling time is very long (about 20 years). A significant amount of residential housing is present in the watershed and may be contributing to the deteriorating water quality. The soils around the lake are very coarse and may allow more than an acceptable amount of nutrients to enter the lake. A number of lake restorative techniques were considered, and diversion of water from the Clearwater River into Dutch Lake appeared to be the best approach. A brief overview of past experiences with flushing/dilution of lake systems is included.
Nordin, Richard N. 1982. Dutch Lake (Clearwater, British Columbia) Water Quality and Options for Improvement. BC Ministry of Environment
Keywords: Dutch Lake, Clearwater, water quality
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