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HAYDEN LAKE, KOOTENAI COUNTY, IDAHO - WATER QUALITY STATUS REPORT, 1987
Description:
Hayden Lake (17010305) is a high quality recreational lake located in Kootenai County, Idaho. Water quality investigations and trend monitoring data from 1985 until 1987 reveal that Hayden Lake is a relatively nutrient poor, oligo-mesotrophic lake with good water clarity and low algae production. Water quality profiles show that Hayden Lake is thermally stratified from June until October and has a large, cool hypolimnion. Dissolved oxygen levels are adequate to support coldwater fish, however, there is some indication of oxygen depletion at the lower depths. Phosphorus is the major limiting nutrient in Hayden Lake, with 69% of the total phosphorus load originating from tributary sources, 26% from atmospheric deposition, and 5% from septic system sources. There are no point sources of pollution. As human population and land/water use continues to increase in the watershed, comprehensive watershed planning and management will be essential for protecting high water quality and maintaining beneficial uses. Bellatty, J.M. 1990. Water Quality Status Report No. 92. Idaho Department of Health and Welfare, Division of Environmental Quality, Boise, ID. 26 pp.