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LakeQuality
C

Vienna Correctional Center Lake

Johnson County, WisconsinEutrophic

Vienna Correctional Center Lake is a 74-acre productive, nutrient-rich eutrophic lake in Johnson County, IL. Water quality is graded C based on 2 sampling years through 2020. Compared to the 1 other monitored lakes in Johnson County, Vienna Correctional Center Lake ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2020-11-05. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 4.5 ft. Phosphorus level: 20 µg/L. Trophic State Index: 51.

MetricValueGrade
Water Clarity (Secchi Depth)4.5 ftD
Phosphorus20 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)51Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Surface Area74 acres

Location

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County Ranking

Ranked #1 of 2 lakes in Johnson County

Cleaner Lakes Within 30 Miles

Vienna Correctional Center Lake holds Grade C. 3 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Johnson County

D
Dutchman Lake
Johnson County
B
Glendale Lake
Pope County
D
Mermet Lake
Massac County
C
Lake of Egypt
Williamson County
B
One Horse Gap Lake
Pope County
B
Tecumseh Lake
Hardin County

More Wisconsin Lake Rankings

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Other Grade C Lakes in Wisconsin

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Cook County · Clarity: 9 ft

Forge Quarry Lake

Cook County · Clarity: 8.5 ft

Lake of Egypt

Williamson County · Clarity: 3.2 ft

Pounds Hollow Lake

Gallatin County · Clarity: 3.9 ft

George Lake

Rock Island County · Clarity: 4.2 ft

Sag Quarry East Lake

Cook County · Clarity: 5.4 ft

Eutrophic Lakes in Wisconsin

Lake OpekaConsumers Quarry LakeLake CharlemagneLake Arlington

Reservoir Info (USACE NID)

Vienna Correctional Center Lake is a man-made reservoir impounded by the Vienna Correctional Center Lake Dam (completed 1964), built primarily for recreation on the TRIB BAY CREEK; earth-type dam, 29 ft tall and 680 ft long.

Surface area
74 ac
Normal storage
558 ac-ft
Max storage
1,169 ac-ft
Drainage area
1.5 sq mi
Hazard class
Low
Owner
ILLINOIS DEPARTMENT OF CORRECTIONS

All listed purposes: Recreation;Water Supply.

Source: USACE National Inventory of Dams, NID ID IL00028 · Operator website

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2020-11-05

Monitoring stations: 3