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Community Water System · PWS NY3503524

Chester Village

Chester, New York 10918 - drinking water served from surface water sources to 3,448 people, tracked in EPA SDWIS and UCMR5.

3,448
People served
206
EPA violations
13
Health-based
4 PFAS
UCMR5 result

The verdict

EPA records 206 drinking-water violations at Chester Village, 6% of them health-based - above the New York per-system average, and UCMR5 testing detected 4 PFAS compounds.

206
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
3,448
People served by this system
4
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Chester Village

Chester Village is a local-owned community water system that delivers drinking water to 3,448 residents in Chester, New York (Orange County) through 1,941 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 206 total violations for this system , of which 13 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 189 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is BHC-GAMMA, recorded in 6 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 4 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 18.9 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across New York, EPA tracks 8,098 public water systems serving 19,294,951 people, with 552,003 cumulative violations and 26,817 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 68.2 violations. Statewide, 129 of 332 UCMR5-tested systems have reported PFAS detections (38.9%).

Chester Village's 206 violations sit above the New York average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
3,448
Total Violations
206
Health-Based Violations
13
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,941
County
Orange
School/Daycare
No
MCL Violations
9
Monitoring Violations
189
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
BHC-GAMMA MR 6 2016
Methoxychlor MR 6 2016
Dalapon MR 6 2016
OXAMYL MR 6 2016
Simazine MR 6 2016
Di(2-ethylhexyl) phthalate MR 6 2016
Dinoseb MR 6 2016
Aldicarb sulfoxide MR 6 2016
Atrazine MR 6 2016
Heptachlor MR 6 2016
Heptachlor epoxide MR 6 2016
2,4-D MR 6 2016
Pentachlorophenol MR 6 2016
Total Polychlorinated Biphenyls (PCB) MR 6 2016
Chlordane MR 6 2016
Toxaphene MR 6 2016
Di(2-ethylhexyl) adipate MR 6 2016
Aldicarb sulfone MR 6 2016
Carbofuran MR 6 2016
Aldicarb MR 6 2016
LASSO MR 6 2016
HEXACHLOROBENZENE MR 6 2016
Nitrate MR 6 2019
Benzene MR 6 2019
TTHM MCL 6 2019
Endrin MR 6 2016
2,4,5-TP MR 6 2016
Hexachlorocyclopentadiene MR 6 2016
Picloram MR 6 2016
Benzo(a)pyrene MR 6 2016

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 13 of 174 samples detected PFAS.

Contaminant Date Result MRL Status
PFDoA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 8/15/2023 <8.00 ppt 8.00 ppt Not Detected
PFDA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxA 8/15/2023 3.50 ppt 3.00 ppt Detected
PFUnA 8/15/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 8/15/2023 <2.00 ppt 2.00 ppt Not Detected
6:2 FTS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFOS 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
NEtFOSAA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/15/2023 <6.00 ppt 6.00 ppt Not Detected
PFOA 8/15/2023 5.10 ppt 4.00 ppt Detected
PFTrDA 8/15/2023 <7.00 ppt 7.00 ppt Not Detected
HFPO-DA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 8/15/2023 4.40 ppt 3.00 ppt Detected
8:2 FTS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFMBA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
NFDHA 8/15/2023 <20.00 ppt 20.00 ppt Not Detected
9Cl-PF3ONS 5/8/2023 <2.00 ppt 2.00 ppt Not Detected
ADONA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 5/8/2023 18.90 ppt 5.00 ppt Detected
4:2 FTS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 5/8/2023 4.40 ppt 3.00 ppt Detected
11Cl-PF3OUdS 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFEESA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
NFDHA 5/8/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 5/8/2023 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 5/8/2023 <6.00 ppt 6.00 ppt Not Detected
PFMBA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFOS 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
6:2 FTS 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 5/8/2023 <2.00 ppt 2.00 ppt Not Detected
PFTA 5/8/2023 <8.00 ppt 8.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Chester Village.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NY3503524 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New York Drinking Water Authority

New York State Department of Health, Public Water Systems is the primacy agency that licenses and inspects Chester Village under EPA-delegated authority.

Open NY regulator portal

Source: New York State Department of Health, Public Water Systems

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / NY3503524 / 5200
2019 Nitrate MR 6 SDWIS / NY3503524 / 1040
2019 Benzene MR 6 SDWIS / NY3503524 / 2990
2019 TTHM MCL 6 SDWIS / NY3503524 / 2950
2019 Arsenic MR 2 SDWIS / NY3503524 / 1005
2017 TTHM MR 3 SDWIS / NY3503524 / 2950
2017 Total Haloacetic Acids (HAA5) MR 3 SDWIS / NY3503524 / 2456
2016 BHC-GAMMA MR 6 SDWIS / NY3503524 / 2010
2016 Methoxychlor MR 6 SDWIS / NY3503524 / 2015
2016 Dalapon MR 6 SDWIS / NY3503524 / 2031
2016 OXAMYL MR 6 SDWIS / NY3503524 / 2036
2016 Simazine MR 6 SDWIS / NY3503524 / 2037
2016 Di(2-ethylhexyl) phthalate MR 6 SDWIS / NY3503524 / 2039
2016 Dinoseb MR 6 SDWIS / NY3503524 / 2041
2016 Aldicarb sulfoxide MR 6 SDWIS / NY3503524 / 2043

How Chester Village Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Chester Village New York avg Federal benchmark
Total violations 206 68.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 13 3.3 Indicates a contaminant exceeded a federal MCL
PFAS detection 4 compounds 38.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,448 2,383 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 8,098 regulated public water systems in New York.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Chester Village water safe to drink? ▼
Chester Village (PWS ID: NY3503524) has 206 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 4 PFAS compounds found. This system serves 3,448 people using Surface Water sources.
How many people does Chester Village serve? ▼
Chester Village serves 3,448 people in Chester, New York. It is a Local-owned system using Surface Water water sources with 1,941 service connections.
What type of violations does Chester Village have? ▼
Chester Village has 206 total violations: 13 health-based violations (MCL exceedances or treatment failures), 189 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Chester Village water? ▼
Yes. UCMR5 testing detected 4 PFAS compounds in Chester Village's water supply: PFHxA, PFOA, PFPeA, PFBA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Chester Village use? ▼
Chester Village uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.