Tap Water Quality Report
Tap water quality in CHARLESTON, West Virginia
Tap water in CHARLESTON, West Virginia receives a grade of C (73/100) from TapWaterSafety.org. It's served by WVAWC-KANAWHA VALLEY DIST. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in CHARLESTON's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving CHARLESTON.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 22.6 ppb, 377x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 35.1 ppb, 234x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 20.1 ppb, 201x above the EWG health guideline of 0.1 ppb.
EPA compliance record
Official U.S. EPA records for WVAWC-KANAWHA VALLEY DIST (system ID WV3302016) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Revised Total Coliform Rule | Missed testing | 07/01/2024 | Open |
| Surface Water Treatment Rule | Missed testing or reporting | 07/01/2024 | Open |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Missed testing or reporting | 07/01/2024 | Open |
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 CHARLESTON
Filters matched to the specific contaminants in CHARLESTON'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 CHARLESTON'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 |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
22.6 ppb | 0.06 | — | — | — | — | — | 377× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
35.1 ppb | 0.15 | 80.0 | 100 | — | — | — | 234× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
20.1 ppb | 0.1 | 60.0 | 60 | — | — | — | 201× over |
| Bromodichloromethane Disinfection byproduct |
6.3 ppb | 0.06 | — | — | — | — | — | 105× over |
| Trichloroacetic acid Disinfection byproduct |
8.97 ppb | 0.1 | — | — | — | — | — | 90× over |
| Chloroform Disinfection byproduct |
27.2 ppb | 0.4 | — | — | — | — | — | 68× over |
| Dichloroacetic acid Disinfection byproduct |
10.8 ppb | 0.2 | — | — | — | — | — | 54× over |
| Dibromochloromethane Disinfection byproduct |
1.57 ppb | 0.1 | — | — | — | — | — | 16× over |
| Chromium (hexavalent) Heavy metal |
0.136 ppb | 0.02 | — | — | — | — | — | 6.8× over |
| Nitrate Inorganic |
0.333 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.4× over |
| Nitrate and nitrite Inorganic |
0.333 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.4× over |
| Dibromoacetic acid Disinfection byproduct |
0.0509 ppb | 0.03 | — | — | — | — | — | 1.7× over |
| Manganese Heavy metal |
0.583 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.281 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.0444 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.11 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.637 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 WVAWC-KANAWHA VALLEY DIST.
General Contact
Treatment Plant
ZIP codes served
CHARLESTON's public water systems serve the following ZIP codes: