CHARLESTON WATER SYSTEM (SC1010001)
South Carolina - Community Water System - PWSID: SC1010001
System Information
| PWSID | SC1010001 |
| System Name | CHARLESTON WATER SYSTEM (SC1010001) |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 04 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 10, 1979 |
| Last Reported | Mar 31, 2026 |
Location & Contact
| State | South Carolina |
| City | CHARLESTON |
| ZIP Code | 29402-0017 |
| Address | PO BOX B |
| Organization | ROPP, WESLEY |
| Phone | 843-863-4038 |
Population & Service
| Population Served | 327,422 |
| Service Connections | 146,569 |
Drinking Water Violations (22)
This water system has 22 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2004 | Jul 31, 2004 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 2004 | - | |
| Oct 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2003 | - | |
| Oct 1, 2002 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2003 | - | |
| Jul 1, 1993 | Sep 30, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1993 | - | |
| Jul 1, 1993 | Sep 30, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1993 | - | |
| Apr 1, 1993 | Jun 30, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jan 1, 1993 | Mar 31, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 2 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 2 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Jan 31, 1993 | - | |
| Jul 12, 1984 | Jul 11, 1985 | MCL | Yes | No | .15 | 0.080 mg/L | .1 | Archived | Jul 11, 1985 | - | |
| Jul 1, 1984 | Sep 30, 1984 | MCL | Yes | No | .17 | 0.080 mg/L | .1 | Archived | Sep 30, 1984 | - | |
| Apr 1, 1984 | Jun 30, 1984 | MCL | Yes | No | .15 | 0.080 mg/L | .1 | Archived | Jun 30, 1984 | - | |
| Jan 1, 1984 | Mar 31, 1984 | MCL | Yes | No | .11 | 0.080 mg/L | .1 | Archived | Mar 31, 1984 | - | |
| Oct 1, 1983 | Dec 31, 1983 | MCL | Yes | No | .12 | 0.080 mg/L | .1 | Archived | Dec 31, 1983 | - | |
| - | - | - | No | No | - | - | - | - | - | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.