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Community Water System · PWS NH1221010

Jaffrey Water Works

Jaffrey, New Hampshire 03452 - drinking water served from groundwater sources to 3,800 people, tracked in EPA SDWIS and UCMR5.

3,800
People served
112
EPA violations
30
Health-based
3 PFAS
UCMR5 result

The verdict

EPA records 112 drinking-water violations at Jaffrey Water Works, 27% of them health-based - above the New Hampshire per-system average, and UCMR5 testing detected 3 PFAS compounds.

112
Total EPA violations on record
27%
Health-based (MCL / treatment failure)
3,800
People served by this system
3
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Jaffrey Water Works

Jaffrey Water Works is a local-owned community water system that delivers drinking water to 3,800 residents in Jaffrey, New Hampshire (Cheshire County) through 1,525 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 112 total violations for this system , of which 30 (27%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 78 monitoring and reporting violations are on file. The most recent violation on record dates to 2009.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 29 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 3 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 11 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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%).

Jaffrey Water Works's 112 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.

PFAS Detected

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

Population Served
3,800
Total Violations
112
Health-Based Violations
30
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,525
County
Cheshire
School/Daycare
No
MCL Violations
29
Monitoring Violations
78
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 29 2007
TTHM MR 8 2006
Total Haloacetic Acids (HAA5) MR 8 2006
Chlorine MR 7 2007
Coliform (TCR) MR 5 2008
Gross Alpha, Excl. Radon and U MR 2 2009
1,2,4-Trichlorobenzene MR 2 2009
Di(2-ethylhexyl) phthalate MR 2 2009
Xylenes, Total MR 2 2009
o-Dichlorobenzene MR 2 2009
Vinyl chloride MR 2 2009
1,1-Dichloroethylene MR 2 2009
Carbon tetrachloride MR 2 2009
1,2-Dichloropropane MR 2 2009
1,1,2-Trichloroethane MR 2 2009
Tetrachloroethylene MR 2 2009
Benzene MR 2 2009
cis-1,2-Dichloroethylene MR 2 2009
CHLOROBENZENE MR 2 2009
Combined Radium (-226 and -228) MR 2 2009
Trichloroethylene MR 2 2009
p-Dichlorobenzene MR 2 2009
DICHLOROMETHANE MR 2 2009
1,2-Dichloroethane MR 2 2009
Styrene MR 2 2009
Ethylbenzene MR 2 2009
1,1,1-Trichloroethane MR 2 2009
Combined Uranium MR 2 2009
trans-1,2-Dichloroethylene MR 2 2009
Toluene MR 2 2009

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 5 of 232 samples detected PFAS.

Contaminant Date Result MRL Status
PFDA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFOS 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
NEtFOSAA 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 7/18/2023 <6.00 ppt 6.00 ppt Not Detected
PFHpA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
PFDoA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/18/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 7/18/2023 <2.00 ppt 2.00 ppt Not Detected
PFTrDA 7/18/2023 <7.00 ppt 7.00 ppt Not Detected
PFMPA 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
PFTA 7/18/2023 <8.00 ppt 8.00 ppt Not Detected
PFMBA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/18/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
PFEESA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 7/18/2023 <8.00 ppt 8.00 ppt Not Detected
PFBS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
NFDHA 7/18/2023 <20.00 ppt 20.00 ppt Not Detected
PFMBA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFOS 7/18/2023 <4.00 ppt 4.00 ppt Not Detected
11Cl-PF3OUdS 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 7/18/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/18/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 7/18/2023 <5.00 ppt 5.00 ppt Not Detected
PFOA 7/18/2023 <4.00 ppt 4.00 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 Jaffrey Water Works.

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 NH1221010 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
2009 Gross Alpha, Excl. Radon and U MR 2 SDWIS / NH1221010 / 4000
2009 1,2,4-Trichlorobenzene MR 2 SDWIS / NH1221010 / 2378
2009 Di(2-ethylhexyl) phthalate MR 2 SDWIS / NH1221010 / 2039
2009 Xylenes, Total MR 2 SDWIS / NH1221010 / 2955
2009 o-Dichlorobenzene MR 2 SDWIS / NH1221010 / 2968
2009 Vinyl chloride MR 2 SDWIS / NH1221010 / 2976
2009 1,1-Dichloroethylene MR 2 SDWIS / NH1221010 / 2977
2009 Carbon tetrachloride MR 2 SDWIS / NH1221010 / 2982
2009 1,2-Dichloropropane MR 2 SDWIS / NH1221010 / 2983
2009 1,1,2-Trichloroethane MR 2 SDWIS / NH1221010 / 2985
2009 Tetrachloroethylene MR 2 SDWIS / NH1221010 / 2987
2009 Benzene MR 2 SDWIS / NH1221010 / 2990
2009 cis-1,2-Dichloroethylene MR 2 SDWIS / NH1221010 / 2380
2009 CHLOROBENZENE MR 2 SDWIS / NH1221010 / 2989
2009 Combined Radium (-226 and -228) MR 2 SDWIS / NH1221010 / 4010

How Jaffrey Water Works Compares

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

Metric Jaffrey Water Works New Hampshire avg Federal benchmark
Total violations 112 63.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 30 12.1 Indicates a contaminant exceeded a federal MCL
PFAS detection 3 compounds 45.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,800 506 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 Jaffrey Water Works water safe to drink? ▼
Jaffrey Water Works (PWS ID: NH1221010) has 112 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 3 PFAS compounds found. This system serves 3,800 people using Groundwater sources.
How many people does Jaffrey Water Works serve? ▼
Jaffrey Water Works serves 3,800 people in Jaffrey, New Hampshire. It is a Local-owned system using Groundwater water sources with 1,525 service connections.
What type of violations does Jaffrey Water Works have? ▼
Jaffrey Water Works has 112 total violations: 30 health-based violations (MCL exceedances or treatment failures), 78 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Jaffrey Water Works water? ▼
Yes. UCMR5 testing detected 3 PFAS compounds in Jaffrey Water Works's water supply: PFOA, PFHxS, PFOS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Jaffrey Water Works use? ▼
Jaffrey Water Works uses Groundwater 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.