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EPA WATER QUALITY DATA · SC

South Carolina Tap Water Quality by City

EPA UCMR5 PFAS monitoring, MCL / guideline flags, and WaterCheckup grades for 1 cities in South Carolina. "At Risk" means at least one UCMR analyte flagged above an EPA limit or a regulated PFAS violation on record for that system. "Monitor" means no such flag in UCMR data, but the city profile is medium or high concern. "Safe" means no exceedance flags and a low-concern city profile (still not a guarantee for every tap).

1
Cities tracked
1
At Risk
Exceeds EPA limit / violation
0
Safe
No flag, low profile
0
Monitor
No flag, watch profile
Highest PFAS reading in South Carolina: Columbia9.2 ppt (2× the EPA limit for PFOA/PFOS)
TOP CONTAMINANTS IN SOUTH CAROLINA (UCMR5)

Five most common UCMR analytes with detections (>0) in our tracked South Carolina cities — each city counted once per compound.

1.HFPO-DA1 city
2.PFOS1 city
3.PFOA1 city
4.PFPeA1 city
5.PFHxA1 city
SOUTH CAROLINA CITIES BY POPULATION
CITYGRADECONTAMINANTS ABOVE LIMITPOPULATION
Columbia
Columbia Water
FAT RISK32 MCL violations130K
COUNTIES IN SOUTH CAROLINA

County-level grades roll up every WaterCheckup city we map into the same county (via USPS city–county reference data).

Lexington County1 city · Grade F
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ABOUT WATER QUALITY IN SOUTH CAROLINA

South Carolina water quality varies by city and water system. UCMR5 reports PFAS and related analytes; the "above limit" column uses the EPA-limit flags bundled with each analyte in our dataset (same basis as city pages). Here, 1 of 1 tracked cities show at least one such flag or a regulated violation count.

SDWIS/City reports: use each city link for full narrative, picks, and EPA Consumer Confidence Report context.

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