Water system · PWSID SC1010002
MT PLEASANT WATER WORKS (1010002)
PWSID
SC1010002
State
South Carolina
City
MOUNT PLEASANT
Population served
91,500
Primary source
SWP
Score history
▼ 50 points — the score moved from 100 to 50 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Nov 2024). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
8.4 ppt
limit 4 ppt
PFOA
Perfluorooctanoic acid
5.5 ppt
limit 4 ppt
PFPeA
6 ppt
limit —
PFBA
5.3 ppt
limit —
PFHxA
5.1 ppt
limit —
PFBS
3.6 ppt
limit —
Violations & enforcement
3
Violations on record
0
Unaddressed
0
Health-based
16
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Oct 2020. Official EPA record →
Recent enforcement actions
- State action · SIF Oct 2020
- State action · SOX Oct 2020
- State action · SIE Sep 2020
- State action · SIA Sep 2020
- State action · SIF Jul 2007
- State action · SOX Jan 2007
- State action · SIE Jul 2006
- State action · SIA Jul 2006
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Manganese
3 stations · latest Mar 2026
Lead
1 station · latest May 2023
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system SC1010002 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.