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

Water-Resources Investigations Report 79-63
By:
https://doi.org/10.3133/wri7963

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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)

Suggested Citation

Dion, N.P., 1979, Environmental features, general hydrology, and external sources of nutrients affecting Wilderness Lake, King County, Washington: U.S. Geological Survey Water-Resources Investigations Report 79-63, v, 27 p. , https://doi.org/10.3133/wri7963.

Study Area

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
Additional publication details