Water Quality Report · Updated October 07, 2026
MVWA - MOHAWK VALLEY WATER AUTHORITY
MVWA - MOHAWK VALLEY WATER AUTHORITY delivers tap water graded B (79/100) by TapWaterSafety.org. The utility serves approximately 126,250 residents in NEW HARTFORD (V), New York using surface water. The most significant water quality concerns are: Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline. For questions, the utility can be reached at 315-792-0319.
Is NEW HARTFORD (V) tap water safe to drink?
MVWA - MOHAWK VALLEY WATER AUTHORITY delivers tap water that earns a grade of B (79/100) from TapWaterSafety.org — a good rating, with only minor concerns relative to health-based guidelines.
The utility serves 126,250 residents in NEW HARTFORD (V) and 10 other communities, drawing from surface water.
Public testing data identifies 10 contaminants in this water above EWG's health-based guidelines, including: Total trihalomethanes (TTHMs), Haloacetic acids (HAA9), Haloacetic acids (HAA5), Chloroform, Trichloroacetic acid, Dichloroacetic acid, Bromodichloromethane, Nitrate, Nitrate and nitrite, Chromium (hexavalent). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for MVWA - MOHAWK VALLEY WATER AUTHORITY (system ID NY3202411) 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.
Quick actions for NEW HARTFORD (V) residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for MVWA - MOHAWK VALLEY WATER AUTHORITY.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 51.4 ppb, 342x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 16.5 ppb, 274x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 17.8 ppb, 178x above the EWG health guideline of 0.1 ppb.
Contact MVWA - MOHAWK VALLEY WATER AUTHORITY
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for NEW HARTFORD (V)
Filters matched to the specific contaminants in this water supply.
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.
Score breakdown
This utility's overall score of 79/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 |
51.4 ppb | 0.15 | 80.0 | 100 | — | — | — | 342× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
16.5 ppb | 0.06 | — | — | — | — | — | 274× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
17.8 ppb | 0.1 | 60.0 | 60 | — | — | — | 178× over |
| Chloroform Disinfection byproduct |
49.8 ppb | 0.4 | — | — | — | — | — | 125× over |
| Trichloroacetic acid Disinfection byproduct |
9.84 ppb | 0.1 | — | — | — | — | — | 98× over |
| Dichloroacetic acid Disinfection byproduct |
7.95 ppb | 0.2 | — | — | — | — | — | 40× over |
| Bromodichloromethane Disinfection byproduct |
1.54 ppb | 0.06 | — | — | — | — | — | 26× over |
| Nitrate Inorganic |
0.22 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.6× over |
| Nitrate and nitrite Inorganic |
0.22 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.6× over |
| Chromium (hexavalent) Heavy metal |
0.0221 ppb | 0.02 | — | — | — | — | — | 1.1× over |
| Chlorate Disinfection byproduct |
48.6 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
4.5 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Barium Heavy metal |
5.93 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Vanadium Other |
0.134 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0173 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.668 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
MVWA - MOHAWK VALLEY WATER AUTHORITY service area
This water system serves 11 communities in Oneida County, New York. Click any city for its dedicated tap water quality page.
Find the right filter for NEW HARTFORD (V) water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.