St. Clair County, Illinois Water Quality
Aggregated water quality data for 25 water systems in St. Clair County.
Water Systems
25
Water Systems
256K
People Served
Surface water, Ground water
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 25.5 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 255% | Above guideline |
| PFBA | 0.019 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.023 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHxA | 0.005 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.003 | 0.010 ug/L | 0.001 ug/L(EWG) | 31% | Within limit |
| PFOS | 0.007 | 0.004 ug/L | 0.300 ug/L(EWG) | 175% | Above limit |
| PFPeA | 0.005 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
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