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LakeQuality
B

Timber Lake

Carroll County, WisconsinLimited DataMesotrophic

Timber Lake is a mesotrophic lake in Carroll County, IL. Water quality is graded B based on 1 sampling years through 2021.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2021-07-26. Grade methodology: LakeGrade methodology.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 11.5 ft. Trophic State Index: 42.

MetricValueGrade
Water Clarity (Secchi Depth)11.5 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)42Mesotrophic

Moderate nutrients, good water quality

Location

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County Ranking

Ranked #1 of 1 lakes in Carroll County

Nearby Lakes in Carroll County

Reservoir Info (USACE NID)

Timber Lake is a man-made reservoir impounded by the Timber Lake Dam (completed 1960), built primarily for recreation on the TRIB EAST JOHNSON CREEK; earth-type dam, 25 ft tall and 466 ft long.

Normal storage
87 ac-ft
Max storage
155 ac-ft
Hazard class
Significant
Owner
TIMBER LAKE CAMPGROUND

Source: USACE National Inventory of Dams, NID ID IL00841 · Operator website

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2021-07-26

Monitoring stations: 1