Summerville Water Quality
South Carolina
According to EPA SDWIS, Summerville, South Carolina is served by 17 community water systems covering about 156,689 people. The same extract lists 47 health-based violation records, most recently coded 4000 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Summerville, South Carolina is delivered through 17 EPA-regulated community water systems serving an estimated 156,689 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 47 violation records across the 17 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 2 distinct EPA contaminant codes: Gross Alpha, Excl. Radon and U, TTHM. 14 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the South Carolina drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| SUMMERVILLE CPW (SC1810003) | 81,750 | 0 | Clean |
| DCWA KNIGHTSVILLE (SC1820001) | 40,141 | 0 | Clean |
| DCWS ASHLEY PHOSPHATE (SC1820008) | 26,536 | 0 | Clean |
| DCWS/CLAY FIELD DRIVE (SC1850014) | 1,648 | 0 | Clean |
| DCWS SOUTHERN PALMS (SC1850011) | 1,494 | 0 | Clean |
| RIDGEVILLE INDUSTRIAL CAMPUS (SC1830031) | 999 | 0 | Clean |
| DCWS EDISTO TRIBAL COUNCIL (1850010) | 925 | 0 | Clean |
| HOMECOMING SUBDIVISION (SC1850016) | 883 | 0 | Clean |
| DCWA TRANQUIL ACRES (SC1820003) | 858 | 0 | Clean |
| DCWS REEVESVILLE (SC1820002) | 300 | 0 | Clean |
| DCWA CALOMET VALLEY (1850009) | 275 | 0 | Clean |
| HERON'S WALK PHASE 1 (SC1850017) | 231 | 0 | Clean |
| DCWS HIGHWAY 17A (SC1820009) | 200 | 0 | Clean |
| DCWS CALEB COURT (SC1850015) | 156 | 0 | Clean |
| DCWS CONOFLOW (SC1820007) | 150 | 0 | Clean |
| DCWS I-95 (SC1870914) | 102 | 8 | Health |
| SANDY RUN MHP (SC0860037) | 41 | 39 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-10-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-10-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2022-01-01 |
| DCWS I-95 (SC1870914) | TTHM | 2021-10-01 |
| DCWS I-95 (SC1870914) | TTHM | 2021-10-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2021-10-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2021-10-01 |
| DCWS I-95 (SC1870914) | TTHM | 2021-07-01 |
| DCWS I-95 (SC1870914) | TTHM | 2021-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2021-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2021-07-01 |
| DCWS I-95 (SC1870914) | TTHM | 2021-04-01 |
| DCWS I-95 (SC1870914) | TTHM | 2021-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2021-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2021-04-01 |
| DCWS I-95 (SC1870914) | TTHM | 2021-01-01 |
| DCWS I-95 (SC1870914) | TTHM | 2021-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2021-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2021-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2020-10-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2020-10-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2020-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2020-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2020-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2020-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2020-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2020-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-10-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-10-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-07-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-04-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-01-01 |
| SANDY RUN MHP (SC0860037) | Gross Alpha, Excl. Radon and U | 2019-01-01 |
What are Summerville's health-based records for?
Summerville's health-based violation records carry 2 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Gross Alpha, Excl. Radon and U | 39 | 1 |
| Tthm | 8 | 1 |
TRI Facilities in Summerville
| Facility | Total Releases |
|---|---|
| Sportsman Boat Manufacturing Inc. | 771.2K lbs |
| Scout Boats Inc | 656.8K lbs |
| Key West Boats Inc. Plant 2 (summerville) | 237.3K lbs |
| Cutting Edge Composites | 123.6K lbs |
| Briteline Extrusions Inc | 6.3K lbs |
| Avoca LLC | 3.0K lbs |
| James Hardie Building Products Summerville | 617 lbs |
| Concrete Pipe & Precast Llc-Summerville Precast Plant | 95 lbs |
| Interfor Summerville | 53 lbs |
| Argos Summerville Concrete Plant | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Summerville, South Carolina? ▼
How many water violations does Summerville have in this EPA extract? ▼
What contaminants were found in Summerville water? ▼
How many water systems serve Summerville? ▼
Where does Summerville get its drinking water? ▼
Are there pollution sources near Summerville? ▼
How does Summerville compare in South Carolina?
Of the 204 South Carolina places with at least one community water system on file, Summerville ranks #3 by number of systems (17).
Either side of it: Columbia (116), Fort Mill (18), Sumter (12), Lexington (11)
About This Data
Figures here are the current EPA SDWIS extract joined to the 17 community water systems whose service area lists Summerville, ranked against the 204 South Carolina places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.