Tap Water Quality Report
Tap water quality in SUMMERVILLE, South Carolina
Tap water in SUMMERVILLE, South Carolina receives a grade of C (77/100) from TapWaterSafety.org. It's served by SUMMERVILLE CPW (SC1810003). The most significant water quality concerns are: Perfluoroundecanoic acid (PFUnA) * significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in SUMMERVILLE's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving SUMMERVILLE.
Perfluoroundecanoic acid (PFUnA) * significantly above health guideline
Moderate concernPerfluoroundecanoic acid (PFUnA) * detected at 7.1 ppt, 1183x above the EWG health guideline of 0.006 ppt.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 22.1 ppb, 368x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 25.2 ppb, 168x above the EWG health guideline of 0.15 ppb.
EPA compliance record
Official U.S. EPA records for SUMMERVILLE CPW (SC1810003) (system ID SC1810003) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for SUMMERVILLE
Filters matched to the specific contaminants in SUMMERVILLE's water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in SUMMERVILLE's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Perfluoroundecanoic acid (PFUnA) * PFAS |
7.1 ppt | 0.006 | — | — | — | — | — | 1183× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
22.1 ppb | 0.06 | — | — | — | — | — | 368× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
25.2 ppb | 0.15 | 80.0 | 100 | — | — | — | 168× over |
| Bromodichloromethane Disinfection byproduct |
8.25 ppb | 0.06 | — | — | — | — | — | 137× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
11.3 ppb | 0.1 | 60.0 | 60 | — | — | — | 113× over |
| Perfluorododecanoic acid (PFDoA)* PFAS |
4.5 ppt | 0.06 | — | — | — | — | — | 75× over |
| Trichloroacetic acid Disinfection byproduct |
3.81 ppb | 0.1 | — | — | — | — | — | 38× over |
| Dichloroacetic acid Disinfection byproduct |
7.41 ppb | 0.2 | — | — | — | — | — | 37× over |
| Chloroform Disinfection byproduct |
14.2 ppb | 0.4 | — | — | — | — | — | 35× over |
| Dibromochloromethane Disinfection byproduct |
2.76 ppb | 0.1 | — | — | — | — | — | 28× over |
| Chromium (hexavalent) Heavy metal |
0.0505 ppb | 0.02 | — | — | — | — | — | 2.5× over |
| Nitrate* Inorganic |
0.26 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.9× over |
| Dibromoacetic acid Disinfection byproduct |
0.044 ppb | 0.03 | — | — | — | — | — | 1.5× over |
| Hexafluoropropylene oxide dimer acid (HFPO-DA)* Other |
8.0 ppt | 9.0 | 10.0 | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.125 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Vanadium Other |
0.556 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.56 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Molybdenum Other |
0.588 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA)* PFAS |
3.3 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA)* PFAS |
2.7 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.0595 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0448 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride* Inorganic |
0.403 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from SUMMERVILLE CPW (SC1810003).