Tap Water Quality Report
Tap water quality in OAKFIELD (T), New York
Tap water in OAKFIELD (T), New York receives a grade of F (55/100) from TapWaterSafety.org. It's served by MCWA. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Bromodichloromethane significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in OAKFIELD (T)'s tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving OAKFIELD (T).
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 21.1 ppb, 351x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 37.8 ppb, 252x above the EWG health guideline of 0.15 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 9.62 ppb, 160x above the EWG health guideline of 0.06 ppb.
Recommended filters for OAKFIELD (T)
Filters matched to the specific contaminants in OAKFIELD (T)'s water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
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 OAKFIELD (T)'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 |
21.1 ppb | 0.06 | — | — | — | — | — | 351× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
37.8 ppb | 0.15 | 80.0 | 100 | — | — | — | 252× over |
| Bromodichloromethane Disinfection byproduct |
9.62 ppb | 0.06 | — | — | — | — | — | 160× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
11.4 ppb | 0.1 | 60.0 | 60 | — | — | — | 114× over |
| Trichloroacetic acid Disinfection byproduct |
6.85 ppb | 0.1 | — | — | — | — | — | 68× over |
| Chloroform Disinfection byproduct |
24.2 ppb | 0.4 | — | — | — | — | — | 61× over |
| Dibromochloromethane Disinfection byproduct |
3.65 ppb | 0.1 | — | — | — | — | — | 37× over |
| Radium, combined (-226 and -228) Radiological |
1.15 pCi/L | 0.05 | 5.0 | — | — | — | — | 23× over |
| Dichloroacetic acid Disinfection byproduct |
4.42 ppb | 0.2 | — | — | — | — | — | 22× over |
| Chromium (hexavalent) Heavy metal |
0.141 ppb | 0.02 | — | — | — | — | — | 7.1× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.584 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 6.5× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
1.11 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 3.7× over |
| Nitrate Inorganic |
0.295 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.1× over |
| Dibromoacetic acid Disinfection byproduct |
0.0287 ppb | 0.03 | — | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
125.0 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Bromoform Disinfection byproduct |
0.23 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
21.2 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Molybdenum Other |
0.938 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.17 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
0.239 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Endrin Other |
0.00198 ppb | 0.3 | 2.0 | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.116 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
0.792 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.169 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.042 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.605 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
0.672 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 MCWA.
General Contact
Treatment Plant
ZIP codes served
OAKFIELD (T)'s public water systems serve the following ZIP codes: