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Tap Water Quality Report

Tap water quality in GATES (T), New York

Served by MCWA. 768,458 residents.

Average score 54/100
Utilities 1
Population 768,458
Quick answer

Tap water in GATES (T), New York receives a grade of F (54/100) 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.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?

What's in GATES (T)'s tap water

Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving GATES (T).

PFAS contamination

Severe concern

Perfluorooctane 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 concern

Haloacetic 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 concern

Total trihalomethanes (TTHMs) detected at 37.8 ppb, 252x above the EWG health guideline of 0.15 ppb.

Bromodichloromethane significantly above health guideline

Moderate concern

Bromodichloromethane detected at 9.62 ppb, 160x above the EWG health guideline of 0.06 ppb.

EPA compliance record

Official U.S. EPA records for MCWA (system ID NY2701047) for the last 3 years. Checked 2026-10-07.

Health-based violation in the last 3 years. A contaminant was above the legal limit or required treatment was not met in at least one quarter.
5 of 12quarters with a violation
Nolead above EPA action level
12/04/2025last state inspection
RuleTypeSinceStatus
Lead and Copper Rule Required treatment not met 01/01/2025 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 GATES (T)

Filters matched to the specific contaminants in GATES (T)'s water supply.

Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)

$180-$750

Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.

AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana AQ-5300 Under-Sink Filter
$180-$240 NSF 42, 53, 401, 372
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Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon
Waterdrop G3P800 Tankless RO
$600-$750 NSF 42, 53, 58, 372
View on retailer →

Carbon filter certified for VOCs (NSF/ANSI 53)

$180-$599

Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.

Aquasana AQ-5300 Under-Sink Filter
$180-$240 NSF 42, 53, 401, 372
Editorial pick · affiliate link coming soon
AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon

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 GATES (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.

Treatment Plant

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