Public Water Partners

CHARLESTON, SC · Charleston County

CHARLESTON WATER SYSTEM (SC1010001) Water System

Consumer Confidence Report status

CHARLESTON WATER SYSTEM (SC1010001) must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for CHARLESTON WATER SYSTEM (SC1010001).

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace South Carolina’s official records. Always confirm current status with South Carolina before making decisions based on this information.

System facts

System ID (PWSID)
SC1010001
System type
Community Water System
Population served
327,422
Service connections
146,569
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

CHARLESTON WATER SYSTEM (SC1010001) is the third largest community water system in South Carolina, serving 327,422 people from surface water.

As of August 1, 2026, its federal record holds 11 entries between 1984 and 2004, all of which EPA lists as closed. Nothing has been added since 2004.

Of the 11, 10 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, the Total Coliform Rules, and the Lead and Copper Rule.

Violation history

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    July 1, 2004 – July 31, 2004

    Archived

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2002 – September 30, 2003

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    July 1, 1993 – September 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    April 1, 1993 – June 30, 1993

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 1993 – January 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 1993 – January 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 1993 – January 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 1993 – March 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 1993 – January 31, 1993

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 1993 – January 31, 1993

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    January 1, 1984 – March 31, 1984

    Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is CHARLESTON WATER SYSTEM (SC1010001) required to publish a Consumer Confidence Report?

Yes. CHARLESTON WATER SYSTEM (SC1010001) is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is CHARLESTON WATER SYSTEM (SC1010001)’s next Consumer Confidence Report due?

CHARLESTON WATER SYSTEM (SC1010001)’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does CHARLESTON WATER SYSTEM (SC1010001) have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for CHARLESTON WATER SYSTEM (SC1010001).

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

ROPP, WESLEY

843-863-4038

CHARLESTON, SC 29402-0017