West Frankfort Reservoir
Franklin County, Illinois159 acresView mapDirections
No nutrient or algae sampling on record from Illinois EPA for this lake.
- Impaired · Mercury
- 20 ft max depth
West Frankfort Reservoir in Franklin County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 20 ft. Surface area: 159 acres.
West Frankfort Reservoir is a 159-acre lake in Franklin County, Illinois with a maximum depth of 20 feet (8-foot average).
Source: EPA Water Quality Portal sampling records, Illinois EPA. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. West Frankfort Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether West Frankfort Reservoir is safe to swim in today is a call for the Illinois Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for West Frankfort Reservoir
These are the measurements Illinois EPA publishes for West Frankfort Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about West Frankfort Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
20 ft
Average depth
8 ft
Surface area
159 acres
Shoreline
5.5 mi
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Stays near West Frankfort Reservoir
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Fishing West Frankfort Reservoir
EPA Impairment Status
West Frankfort Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption, Other.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit IL_RNP · Official waterbody report
Nearby Lakes in Franklin County
Frequently asked questions about West Frankfort Reservoir
Where is West Frankfort Reservoir?
- West Frankfort Reservoir is a lake in Franklin County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of West Frankfort Reservoir?
- West Frankfort Reservoir in Franklin County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 20 ft. Surface area: 159 acres.
Is West Frankfort Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. West Frankfort Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is West Frankfort Reservoir?
- West Frankfort Reservoir has a maximum depth of 20 feet and an average depth of 8 feet. The lake covers 159 acres.
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Where this data comes from
Measurements for West Frankfort Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database