Tap Water Quality Report
Tap water quality in TONAWANDA (C), New York
Tap water in TONAWANDA (C), New York receives a grade of D (67/100) from TapWaterSafety.org. It's served by 2 public water systems, primarily ECWA DIRECT. 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; PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in TONAWANDA (C)'s tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utilities serving TONAWANDA (C).
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 27.6 ppb, 460x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 38.7 ppb, 258x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 19.7 ppb, 197x above the EWG health guideline of 0.1 ppb.
PFAS contamination
Severe concernPerfluorononanoic acid (PFNA), Perfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 1.08 ppt, 1076x above the EWG health guideline of 0.001 ppt.
EPA compliance record
Official U.S. EPA records for ECWA DIRECT (system ID NY1400443) 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.
Water systems serving TONAWANDA (C)
TONAWANDA (C) is served by 2 public water systems. Click any utility to see its complete grade card and treatment plant contact info.
ECWA DIRECT
- Haloacetic acids (HAA9) significantly above health guideline
- Total trihalomethanes (TTHMs) significantly above health guideline
- Haloacetic acids (HAA5) significantly above health guideline
TONAWANDA, TOWN WATER DEPT.
- PFAS contamination
- Perfluorohexane sulfonate (PFHXS) significantly above health guideline
- Haloacetic acids (HAA9) significantly above health guideline
Recommended filters for TONAWANDA (C)
Filters matched to the specific contaminants in TONAWANDA (C)'s water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
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All contaminants detected in TONAWANDA (C)'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 |
|---|---|---|---|---|---|---|---|---|
| Perfluorohexane sulfonate (PFHXS) PFAS |
1.08 ppt | 0.001 | 10.0 | — | — | — | — | 1076× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
27.6 ppb | 0.06 | — | — | — | — | — | 460× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
38.7 ppb | 0.15 | 80.0 | 100 | — | — | — | 258× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
19.7 ppb | 0.1 | 60.0 | 60 | — | — | — | 197× over |
| Bromodichloromethane Disinfection byproduct |
10.2 ppb | 0.06 | — | — | — | — | — | 170× over |
| Trichloroacetic acid Disinfection byproduct |
8.71 ppb | 0.1 | — | — | — | — | — | 87× over |
| Chloroform Disinfection byproduct |
24.3 ppb | 0.4 | — | — | — | — | — | 61× over |
| Dichloroacetic acid Disinfection byproduct |
11.0 ppb | 0.2 | — | — | — | — | — | 55× over |
| Perfluorononanoic acid (PFNA) PFAS |
0.329 ppt | 0.006 | 10.0 | — | — | — | — | 55× over |
| Dibromochloromethane Disinfection byproduct |
5.16 ppb | 0.1 | — | — | — | — | — | 52× over |
| Dibromoacetic acid Disinfection byproduct |
1.16 ppb | 0.03 | — | — | — | — | — | 39× over |
| Perfluorooctanoic acid (PFOA) PFAS |
1.27 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 14× over |
| Chromium (hexavalent) Heavy metal |
0.0988 ppb | 0.02 | — | — | — | — | — | 4.9× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
1.28 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 4.3× over |
| Nitrate and nitrite Inorganic |
0.126 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Chlorate Disinfection byproduct |
96.8 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Nitrate Inorganic |
0.06 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Bromoform Disinfection byproduct |
0.18 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Di(2-ethylhexyl) phthalate Semi-volatile organic compound |
0.435 ppb | 3.0 | 6.0 | — | — | — | — | Below guideline |
| Manganese Heavy metal |
7.04 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Barium Heavy metal |
20.6 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
1.51 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
1.01 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.294 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.0625 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
2.18 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
1.04 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
1.27 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.185 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.35 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 ECWA DIRECT.
General Contact
Treatment Plant
ZIP codes served
TONAWANDA (C)'s public water systems serve the following ZIP codes: