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Clark Lake
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Welcome
Wilderness
Yellow
Watershed Area
338 acres
Lake surface area
8 acres
Maximum depth
Not Available
Mean depth
Not Available
Public Park
Yes
Boat Ramp
car top
Fish Present
Not Available
Monitoring began at Clark Lake in 2003 and continued through 2004, when it was discontinued. The data collected classify this lake in the city of Kent as moderate to high in primary productivity (mesotrophic - eutrophic) with fair to good water quality.
Profile data suggested thermal stratification was stable through summer, and sedimentary phosphorus release increased deep water concentrations. Nitrogen to phosphorus ratios in the upper water were above 20:1, which generally favors other algal species over bluegreens
Clark Lake is located in a Kent city park and is open to car top boats. City staff and lake users should watch near-shore aquatic plants to catch early infestations of Eurasian milfoil, Brazilian elodea or other noxious aquatic weeds.
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Bathymetry map unavailable
This map shows the area of the watershed relative to the area of the lake. Generally speaking, the larger a watershed is relative to a lake, the greater the influence land use practices on lake water quality
Click image to enlarge
Back to top View or Download Data Use this tool to view or download data from the lake in tabular format. You can
define date ranges and select which parameters to view or download. Chart Data Use the charting tool to look at graphs showing single parameters for a single
water year at a time. Five year water quality trends
A common method of tracking water quality trends in lakes is by calculating
the “trophic state index” (TSI) (Carlson, 1977). TSI indicators predict the biological
productivity of the lake based on water clarity (Secchi) and concentrations of total
phosphorus (TP) and chlorophyll a (Chlor).
The average of these three TSI indicators during the growing season can be used
to place lakes in one of three broad categories:
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