Environmental features, general hydrology, and external sources of nutrients affecting Wilderness Lake, King County, Washington

Water-Resources Investigations Report 79-63
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Abstract

A water budget prepared for Wilderness Lake, a candidate for lake-quality restoration, indicates that of the 530 acre-feet of water that enters the lake each year, 170 acre-feet is from precipitation and 360 acre-feet is from groundwater inflow. An equal amount leaves the lake, and of this, 380 acre-feet is by surface runoff, 8 acre-feet is by groundwater seepage, and 140 acre-feet is by evaporation. Based on these amounts of inflow and outflow, the theoretical water-renewal time of the lake is calculated to be 2.6 years. The annual contributions of nitrogen and phosphorus to the lake from precipitation, natural ground water, and septic-tank leachate are about 920 kilograms nitrogen and 38 kilograms phosphorus. Nitrogen and phosphorus contributions from other sources were not assessed but could be significant. (Woodard-USGS)

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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Environmental features, general hydrology, and external sources of nutrients affecting Wilderness Lake, King County, Washington
Series title Water-Resources Investigations Report
Series number 79-63
DOI 10.3133/wri7963
Year Published 1979
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Description v, 27 p.
Country United States
State Washington
County King County
Other Geospatial Wilderness Lake
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