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Poor Water Quality

Mchenry, IL 60050

Mchenry County · Population served: 53,932

Water Systems Serving This Area

🌊
PRAIRIE PATH WATER COMPANY-LAKE MARIAN
Groundwater · Pop. 1,022
PWSID: IL0895200
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FOX LAKE
Groundwater · Pop. 11,780
PWSID: IL0970200
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PRAIRIE PATH -PORT BARRINGTON SHORES
Groundwater · Pop. 67
PWSID: IL0971120
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PRAIRIE PATH WATER COMPANY-CHAR-MAR
Surface water · Pop. 186
PWSID: IL0975350
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PRAIRIE PATH WATER COMPANY-DEL-MAR
Surface water · Pop. 300
PWSID: IL0975370

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
12.0
15 ppb 1 ppb Warning
Copper
2400.0
1300 ppb 300 ppb Exceeded

PFAS / Forever Chemicals

10 detected 2 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA14.0 pptNo standard—Unregulated
PFHxA13.0 pptNo standard400 pptUnregulated
PFBA8.7 pptNo standard500 pptUnregulated
PFBS8.6 ppt2000 ppt100 pptBelow limit
PFOA8.3 ppt4 ppt4 pptExceeded
PFHxS5.7 ppt10 ppt10 pptBelow limit
PFOS5.0 ppt4 ppt4 pptExceeded
PFBS3.9 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

142Total (5yr)
1Health-Based
128Major