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Community Water System · PWS NH1921010

Plainfield Water Dept

Meriden, New Hampshire 03770 - drinking water served from groundwater sources to 284 people, tracked in EPA SDWIS and UCMR5.

284
People served
472
EPA violations
15
Health-based
Untested
UCMR5 result

The verdict

EPA records 472 drinking-water violations at Plainfield Water Dept, 3% of them health-based - above the New Hampshire per-system average.

472
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
284
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Plainfield Water Dept

Plainfield Water Dept is a local-owned community water system that delivers drinking water to 284 residents in Meriden, New Hampshire (Sullivan County) through 118 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 472 total violations for this system , of which 15 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 437 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 Arsenic, recorded in 18 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%).

Plainfield Water Dept's 472 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
284
Total Violations
472
Health-Based Violations
15
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
118
County
Sullivan
School/Daycare
No
MCL Violations
15
Monitoring Violations
437
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MR 18 2014
Coliform (TCR) MCL 15 2014
1,2,4-Trichlorobenzene MR 10 2003
Combined Radium (-226 and -228) MR 10 2003
cis-1,2-Dichloroethylene MR 10 2003
DICHLOROMETHANE MR 10 2003
o-Dichlorobenzene MR 10 2003
Vinyl chloride MR 10 2003
1,2-Dichloroethane MR 10 2003
1,1,1-Trichloroethane MR 10 2003
Carbon tetrachloride MR 10 2003
Tetrachloroethylene MR 10 2003
Toluene MR 10 2003
Styrene MR 10 2003
Gross Alpha, Excl. Radon and U MR 10 2003
Xylenes, Total MR 10 2003
p-Dichlorobenzene MR 10 2003
1,1-Dichloroethylene MR 10 2003
trans-1,2-Dichloroethylene MR 10 2003
1,2-Dichloropropane MR 10 2003
1,1,2-Trichloroethane MR 10 2003
CHLOROBENZENE MR 10 2003
Benzene MR 10 2003
Ethylbenzene MR 10 2003
Chlorine MR 10 2017
Trichloroethylene MR 10 2003
Coliform (TCR) MR 9 1994
Endrin MR 5 2007
Toxaphene MR 5 2007
Glyphosate MR 5 2007

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 Plainfield Water Dept.

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 NH1921010 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 Chlorine MR 10 SDWIS / NH1921010 / 0999
2016 Revised Total Coliform Rule RPT 4 SDWIS / NH1921010 / 8000
2016 TTHM MR 4 SDWIS / NH1921010 / 2950
2016 Total Haloacetic Acids (HAA5) MR 4 SDWIS / NH1921010 / 2456
2014 Arsenic MR 18 SDWIS / NH1921010 / 1005
2014 Coliform (TCR) MCL 15 SDWIS / NH1921010 / 3100
2013 E. COLI MR 4 SDWIS / NH1921010 / 3014
2011 Consumer Confidence Rule Other 4 SDWIS / NH1921010 / 7000
2011 Public Notice Other 4 SDWIS / NH1921010 / 7500
2007 Endrin MR 5 SDWIS / NH1921010 / 2005
2007 Toxaphene MR 5 SDWIS / NH1921010 / 2020
2007 Glyphosate MR 5 SDWIS / NH1921010 / 2034
2007 Di(2-ethylhexyl) adipate MR 5 SDWIS / NH1921010 / 2035
2007 OXAMYL MR 5 SDWIS / NH1921010 / 2036
2007 Simazine MR 5 SDWIS / NH1921010 / 2037

How Plainfield Water Dept Compares

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

Metric Plainfield Water Dept New Hampshire avg Federal benchmark
Total violations 472 63.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 15 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 284 506 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 Plainfield Water Dept water safe to drink? ▼
Plainfield Water Dept (PWS ID: NH1921010) has 472 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 284 people using Groundwater sources.
How many people does Plainfield Water Dept serve? ▼
Plainfield Water Dept serves 284 people in Meriden, New Hampshire. It is a Local-owned system using Groundwater water sources with 118 service connections.
What type of violations does Plainfield Water Dept have? ▼
Plainfield Water Dept has 472 total violations: 15 health-based violations (MCL exceedances or treatment failures), 437 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Plainfield Water Dept water? ▼
No PFAS testing data is available for Plainfield Water Dept under the EPA's UCMR5 monitoring program.
What water source does Plainfield Water Dept use? ▼
Plainfield Water Dept 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. 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.