Tap Water Quality Report
Tap water quality in MASSILLON, Ohio
Tap water in MASSILLON, Ohio receives a grade of D (69/100) from TapWaterSafety.org. It's served by AQUA OHIO - MASSILLON PWS. The most significant water quality concerns are: Arsenic significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Dibromochloromethane significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in MASSILLON's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving MASSILLON.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 1.35 ppb, 338x above the EWG health guideline of 0.004 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 30.9 ppb, 206x above the EWG health guideline of 0.15 ppb.
Dibromochloromethane significantly above health guideline
Moderate concernDibromochloromethane detected at 12.1 ppb, 121x above the EWG health guideline of 0.1 ppb.
EPA compliance record
Official U.S. EPA records for AQUA OHIO - MASSILLON PWS (system ID OH7604512) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Consumer Confidence Rule | Other (e.g. public notice) | 02/06/2020 | 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 MASSILLON
Filters matched to the specific contaminants in MASSILLON's water supply.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
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 MASSILLON'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 |
|---|---|---|---|---|---|---|---|---|
| Arsenic Heavy metal |
1.35 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 338× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
30.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 206× over |
| Dibromochloromethane Disinfection byproduct |
12.1 ppb | 0.1 | — | — | — | — | — | 121× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
7.21 ppb | 0.06 | — | — | — | — | — | 120× over |
| Bromodichloromethane Disinfection byproduct |
6.77 ppb | 0.06 | — | — | — | — | — | 113× over |
| Dibromoacetic acid Disinfection byproduct |
3.08 ppb | 0.03 | — | — | — | — | — | 103× over |
| Bromoform Disinfection byproduct |
9.1 ppb | 0.5 | — | — | — | — | — | 18× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
1.03 ppb | 0.1 | 60.0 | 60 | — | — | — | 10× over |
| Chromium (hexavalent) Heavy metal |
0.195 ppb | 0.02 | — | — | — | — | — | 9.8× over |
| Chloroform Disinfection byproduct |
2.88 ppb | 0.4 | — | — | — | — | — | 7.2× over |
| Dichloroacetic acid Disinfection byproduct |
0.583 ppb | 0.2 | — | — | — | — | — | 2.9× over |
| Manganese Heavy metal |
85.0 ppb | 100.0 | — | 50 | 80 | — | — | Fails EU |
| 1,4-Dioxane Semi-volatile organic compound |
0.235 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Chlorate Disinfection byproduct |
73.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
66.5 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Molybdenum Other |
0.95 ppb | 40.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.0657 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.4 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
1.55 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
1.5 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0993 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.562 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
11.0 ppb | — | — | — | — | — | — | 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 AQUA OHIO - MASSILLON PWS.