Pinckneyville Reservoir
Perry County, Illinois187 acresView mapDirections
No nutrient or algae sampling on record from Illinois EPA for this lake.
- Impaired · Mercury
- 26 ft max depth
Pinckneyville Reservoir in Perry County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 26 ft. Surface area: 187 acres.
Pinckneyville Reservoir is a 187-acre lake in Perry County, Illinois with a maximum depth of 26 feet (11-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. Pinckneyville Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Pinckneyville 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 Pinckneyville Reservoir
These are the measurements Illinois EPA publishes for Pinckneyville 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 Pinckneyville Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
26 ft
Average depth
10.5 ft
Surface area
187 acres
Shoreline
5.7 mi
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Fishing Pinckneyville Reservoir
EPA Impairment Status
Pinckneyville 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.
Source: EPA ATTAINS assessment unit IL_RNH · Official waterbody report
Nearby Lakes in Perry County
Frequently asked questions about Pinckneyville Reservoir
Where is Pinckneyville Reservoir?
- Pinckneyville Reservoir is a lake in Perry County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Pinckneyville Reservoir?
- Pinckneyville Reservoir in Perry County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 26 ft. Surface area: 187 acres.
Is Pinckneyville Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Pinckneyville 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 Pinckneyville Reservoir?
- Pinckneyville Reservoir has a maximum depth of 26 feet and an average depth of 10.5 feet. The lake covers 187 acres.
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Where this data comes from
Measurements for Pinckneyville 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