CHARLESTON WATER SYSTEM (SC1010001)
Charleston, SC · 327,422 served
CHARLESTON WATER SYSTEM (SC1010001) serves 327,422 people in Charleston, SC. It has 0 health-based violations in the last 5 years. TapGraded gives this system a B.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
0
Currently unaddressed
0
Overall score
80/100
Violation history (last 5 years)
No violations on record.
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Lead (Lead and Copper Rule)
EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).
PFAS (UCMR5 occurrence data)
System details
- System type
- Community water system
- Water source
- Surface water
- Ownership
- Local government
- Service connections
- 146,569
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Is Charleston, SC tap water safe to drink?
CHARLESTON WATER SYSTEM (SC1010001) has 0 health-based violations in the last 5 years. TapGraded gives this system a B.
Does CHARLESTON WATER SYSTEM (SC1010001) have lead in its water?
The most recent 90th-percentile lead sample is 3.5 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in CHARLESTON WATER SYSTEM (SC1010001)'s water?
Yes — PFAS was detected at or above the EPA MCL for 2 of the tracked analytes.
Source: EPA SDWIS/ECHO · Data as of 2026Q2