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CHESTERFIELD WD

PWS ID: NY1500283 · KEESEVILLE, New York 12944

CHESTERFIELD WD serves 2,300 people in KEESEVILLE, New York using Surface Water water sources. It has 382 recorded EPA violations, including 261 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CHESTERFIELD WD

CHESTERFIELD WD is a local-owned community water system that delivers drinking water to 2,300 residents in KEESEVILLE, New York (Essex County) through 1,000 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 382 total violations for this system , of which 261 (68%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 113 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 156 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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. CHESTERFIELD WD's 382 violations sit above the New York average. Statewide, 129 of 332 UCMR5-tested systems have reported PFAS detections (38.9%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
2,300
Total Violations
382
Health-Based Violations
261
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,000
County
Essex
School/Daycare
No
MCL Violations
243
Monitoring Violations
113
Treatment Tech Violations
18

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MCL 156 2018
TTHM MCL 87 2012
Interim Enhanced Surface Water Treatment Rule TT 16 2016
Total Haloacetic Acids (HAA5) MR 8 2015
Arsenic MR 6 2011
Barium MR 6 2011
Chromium MR 6 2011
Selenium MR 6 2011
Mercury MR 6 2011
Fluoride MR 6 2011
Cadmium MR 6 2011
Endrin MR 4 1994
2,4-D MR 4 1994
Methoxychlor MR 4 1994
TTHM MR 4 2004
2,4,5-TP MR 4 1994
Toxaphene MR 4 1994
BHC-GAMMA MR 4 1994
Coliform (TCR) MR 3 2009
Nickel MR 3 2011
Antimony, Total MR 3 2011
Beryllium, Total MR 3 2011
Nitrate MR 3 1988
Thallium, Total MR 3 2011
CYANIDE MR 3 2011
Surface Water Treatment Rule TT 2 1993
ETHYLENE DIBROMIDE MR 2 1994
Aldicarb sulfone MR 1 1994
Carbofuran MR 1 1994
Chlordane MR 1 1994

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 CHESTERFIELD WD.

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 NY1500283 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 CHESTERFIELD WD 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
2018 Total Haloacetic Acids (HAA5) MCL 156 SDWIS / NY1500283 / 2456
2016 Interim Enhanced Surface Water Treatment Rule TT 16 SDWIS / NY1500283 / 0300
2015 Total Haloacetic Acids (HAA5) MR 8 SDWIS / NY1500283 / 2456
2012 TTHM MCL 87 SDWIS / NY1500283 / 2950
2011 Arsenic MR 6 SDWIS / NY1500283 / 1005
2011 Barium MR 6 SDWIS / NY1500283 / 1010
2011 Chromium MR 6 SDWIS / NY1500283 / 1020
2011 Selenium MR 6 SDWIS / NY1500283 / 1045
2011 Mercury MR 6 SDWIS / NY1500283 / 1035
2011 Fluoride MR 6 SDWIS / NY1500283 / 1025
2011 Cadmium MR 6 SDWIS / NY1500283 / 1015
2011 Nickel MR 3 SDWIS / NY1500283 / 1036
2011 Antimony, Total MR 3 SDWIS / NY1500283 / 1074
2011 Beryllium, Total MR 3 SDWIS / NY1500283 / 1075
2011 Thallium, Total MR 3 SDWIS / NY1500283 / 1085

How CHESTERFIELD WD Compares

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

Metric CHESTERFIELD WD New York avg Federal benchmark
Total violations 382 68.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 261 3.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,300 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is CHESTERFIELD WD water safe to drink? ▼
CHESTERFIELD WD (PWS ID: NY1500283) has 382 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,300 people using Surface Water sources.
How many people does CHESTERFIELD WD serve? ▼
CHESTERFIELD WD serves 2,300 people in KEESEVILLE, New York. It is a Local-owned system using Surface Water water sources with 1,000 service connections.
What type of violations does CHESTERFIELD WD have? ▼
CHESTERFIELD WD has 382 total violations: 261 health-based violations (MCL exceedances or treatment failures), 113 monitoring/reporting violations, and 18 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CHESTERFIELD WD water? ▼
No PFAS testing data is available for CHESTERFIELD WD under the EPA's UCMR5 monitoring program.
What water source does CHESTERFIELD WD use? ▼
CHESTERFIELD WD 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial