Tap Water Quality Report
Tap water quality in FLORENCE, South Carolina
Tap water in FLORENCE, South Carolina receives a grade of D (66/100) from TapWaterSafety.org. It's served by FLORENCE CITY OF (SC2110001). The most significant water quality concerns are: PFAS contamination; Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Bromodichloromethane significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in FLORENCE's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving FLORENCE.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA), Perfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 34.8 ppb, 232x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 13.7 ppb, 228x above the EWG health guideline of 0.06 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 8.14 ppb, 136x above the EWG health guideline of 0.06 ppb.
EPA compliance record
Official U.S. EPA records for FLORENCE CITY OF (SC2110001) (system ID SC2110001) 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 FLORENCE
Filters matched to the specific contaminants in FLORENCE's water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts like TTHM. Look for NSF/ANSI 53 VOC or chloroform 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 FLORENCE'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 |
|---|---|---|---|---|---|---|---|---|
| Total trihalomethanes (TTHMs) Disinfection byproduct |
34.8 ppb | 0.15 | 80.0 | 100 | — | — | — | 232× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
13.7 ppb | 0.06 | — | — | — | — | — | 228× over |
| Bromodichloromethane Disinfection byproduct |
8.14 ppb | 0.06 | — | — | — | — | — | 136× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
9.69 ppb | 0.1 | 60.0 | 60 | — | — | — | 97× over |
| Chloroform Disinfection byproduct |
23.9 ppb | 0.4 | — | — | — | — | — | 60× over |
| Trichloroacetic acid Disinfection byproduct |
4.57 ppb | 0.1 | — | — | — | — | — | 46× over |
| Dibromochloromethane Disinfection byproduct |
2.93 ppb | 0.1 | — | — | — | — | — | 29× over |
| Dichloroacetic acid Disinfection byproduct |
5.16 ppb | 0.2 | — | — | — | — | — | 26× over |
| Radium, combined (-226 and -228) Radiological |
0.2 pCi/L | 0.05 | 5.0 | — | — | — | — | 4.1× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.24 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 2.7× over |
| Chromium (hexavalent) Heavy metal |
0.0452 ppb | 0.02 | — | — | — | — | — | 2.3× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.355 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 1.2× over |
| Dibromoacetic acid Disinfection byproduct |
0.0333 ppb | 0.03 | — | — | — | — | — | 1.1× over |
| Nitrate and nitrite Inorganic |
0.129 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Nitrate Inorganic |
0.117 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.13 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Chlorate Disinfection byproduct |
60.6 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
3.3 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Barium Heavy metal |
15.5 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
3.7 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.4 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.105 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.14 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0363 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Dicamba Other |
0.00989 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.185 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 FLORENCE CITY OF (SC2110001).