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States → New Hampshire

Non-Transient Non-Community Water System · PWS NH0445010

Chesterfield Central Sch

Keene, New Hampshire 03431 - drinking water served from groundwater sources to 322 people, tracked in EPA SDWIS and UCMR5.

322
People served
110
EPA violations
4
Health-based
Untested
UCMR5 result

The verdict

EPA records 110 drinking-water violations at Chesterfield Central Sch, 4% of them health-based - above the New Hampshire per-system average.

110
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
322
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Chesterfield Central Sch

Chesterfield Central Sch is a local-owned non-transient non-community water system that delivers drinking water to 322 residents in Keene, New Hampshire (Cheshire County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 110 total violations for this system , of which 4 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 106 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 6 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New Hampshire, EPA tracks 2,453 public water systems serving 1,242,123 people, with 155,970 cumulative violations and 29,649 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 63.6 violations. Statewide, 23 of 51 UCMR5-tested systems have reported PFAS detections (45.1%).

Chesterfield Central Sch's 110 violations sit above the New Hampshire average.

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
322
Total Violations
110
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Cheshire
School/Daycare
Yes
MCL Violations
4
Monitoring Violations
106
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 6 2012
BHC-GAMMA MR 4 1995
Toxaphene MR 4 1995
Glyphosate MR 4 1995
OXAMYL MR 4 1995
Di(2-ethylhexyl) phthalate MR 4 1995
Picloram MR 4 1995
Hexachlorocyclopentadiene MR 4 1995
Carbofuran MR 4 1995
Atrazine MR 4 1995
LASSO MR 4 1995
Heptachlor MR 4 1995
Heptachlor epoxide MR 4 1995
2,4-D MR 4 1995
HEXACHLOROBENZENE MR 4 1995
Benzo(a)pyrene MR 4 1995
Pentachlorophenol MR 4 1995
1,2-DIBROMO-3-CHLOROPROPANE MR 4 1995
Revised Total Coliform Rule MCL 4 2017
Chlordane MR 4 1995
Di(2-ethylhexyl) adipate MR 4 1995
Endrin MR 4 1995
Dinoseb MR 4 1995
Methoxychlor MR 4 1995
2,4,5-TP MR 4 1995
Simazine MR 4 1995
ETHYLENE DIBROMIDE MR 4 1995

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 Central Sch.

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 NH0445010 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Hampshire Drinking Water Authority

New Hampshire's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find NH regulator via EPA SDWIS

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
2017 Revised Total Coliform Rule MCL 4 SDWIS / NH0445010 / 8000
2012 Lead and Copper Rule MR 6 SDWIS / NH0445010 / 5000
1995 BHC-GAMMA MR 4 SDWIS / NH0445010 / 2010
1995 Toxaphene MR 4 SDWIS / NH0445010 / 2020
1995 Glyphosate MR 4 SDWIS / NH0445010 / 2034
1995 OXAMYL MR 4 SDWIS / NH0445010 / 2036
1995 Di(2-ethylhexyl) phthalate MR 4 SDWIS / NH0445010 / 2039
1995 Picloram MR 4 SDWIS / NH0445010 / 2040
1995 Hexachlorocyclopentadiene MR 4 SDWIS / NH0445010 / 2042
1995 Carbofuran MR 4 SDWIS / NH0445010 / 2046
1995 Atrazine MR 4 SDWIS / NH0445010 / 2050
1995 LASSO MR 4 SDWIS / NH0445010 / 2051
1995 Heptachlor MR 4 SDWIS / NH0445010 / 2065
1995 Heptachlor epoxide MR 4 SDWIS / NH0445010 / 2067
1995 2,4-D MR 4 SDWIS / NH0445010 / 2105

How Chesterfield Central Sch Compares

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

Metric Chesterfield Central Sch New Hampshire avg Federal benchmark
Total violations 110 63.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 12.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 45.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 322 506 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,453 regulated public water systems in New Hampshire.

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 Chesterfield Central Sch water safe to drink? ▼
Chesterfield Central Sch (PWS ID: NH0445010) has 110 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 322 people using Groundwater sources.
How many people does Chesterfield Central Sch serve? ▼
Chesterfield Central Sch serves 322 people in Keene, New Hampshire. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does Chesterfield Central Sch have? ▼
Chesterfield Central Sch has 110 total violations: 4 health-based violations (MCL exceedances or treatment failures), 106 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Chesterfield Central Sch water? ▼
No PFAS testing data is available for Chesterfield Central Sch under the EPA's UCMR5 monitoring program.
What water source does Chesterfield Central Sch use? ▼
Chesterfield Central Sch uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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. 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.