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Fivemile Lake
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Welcome
Wilderness
Yellow
Watershed Area
593 acres
Lake surface area
38 acres
Maximum depth
32 feet
Mean depth
18 feet
Public Park
Y
Boat Ramp
Car top boats
Fish Present
bass, stocked rainbow
Volunteers monitored Fivemile Lake in the 1980s, continuing from 1994 through 2008, after which it was discontinued. Data identified this lake as highly colored and moderately high in primary productivity (high mesotrophic) with good water quality, which was steady over time.
Profile data suggested that thermal stratification was stable through summer, and sedimentary phosphorus release added a small amount to deep water concentrations. Nitrogen to phosphorus ratios were above 20:1, which generally favors other algae over bluegreens , although one species was commonly found in the lake.
Fivemile Lake has no public access boat ramp, but car top boats may be launched from the county park on the eastern shoreline. Residents should keep a watch on aquatic plants growing nearshore to catch early infestations of noxious aquatic weeds.
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This bathymetric map shows contour lines of equal depth, similar to a topographic map would for mountains and valleys
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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