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DEER RUN

PWS ID: NH0342050 · MOULTONBOROUGH, New Hampshire 03254

DEER RUN serves 150 people in MOULTONBOROUGH, New Hampshire using Groundwater water sources. It has 59 recorded EPA violations, including 5 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: DEER RUN

DEER RUN is a private-owned community water system that delivers drinking water to 150 residents in MOULTONBOROUGH, New Hampshire (Grafton County) through 60 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 59 total violations for this system , of which 5 (8%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 52 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 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. DEER RUN's 59 violations sit below the New Hampshire average. Statewide, 23 of 51 UCMR5-tested systems have reported PFAS detections (45.1%). 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
150
Total Violations
59
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
60
County
Grafton
School/Daycare
No
MCL Violations
3
Monitoring Violations
52
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 6 2024
Nitrate MR 4 1994
Coliform (TCR) MCL 3 1992
Lead and Copper Rule TT 2 1994
1,2,4-Trichlorobenzene MR 2 1994
cis-1,2-Dichloroethylene MR 2 1994
Xylenes, Total MR 2 1994
p-Dichlorobenzene MR 2 1994
1,1-Dichloroethylene MR 2 1994
1,1,1-Trichloroethane MR 2 1994
Carbon tetrachloride MR 2 1994
1,2-Dichloropropane MR 2 1994
Trichloroethylene MR 2 1994
1,1,2-Trichloroethane MR 2 1994
CHLOROBENZENE MR 2 1994
Benzene MR 2 1994
Ethylbenzene MR 2 1994
Styrene MR 2 1994
DICHLOROMETHANE MR 2 1994
Toluene MR 2 1994
Vinyl chloride MR 2 1994
trans-1,2-Dichloroethylene MR 2 1994
o-Dichlorobenzene MR 2 1994
Tetrachloroethylene MR 2 1994
1,2-Dichloroethane MR 2 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 DEER RUN.

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 NH0342050 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
2024 Lead and Copper Rule MR 6 SDWIS / NH0342050 / 5000
1994 Nitrate MR 4 SDWIS / NH0342050 / 1040
1994 Lead and Copper Rule TT 2 SDWIS / NH0342050 / 5000
1994 1,2,4-Trichlorobenzene MR 2 SDWIS / NH0342050 / 2378
1994 cis-1,2-Dichloroethylene MR 2 SDWIS / NH0342050 / 2380
1994 Xylenes, Total MR 2 SDWIS / NH0342050 / 2955
1994 p-Dichlorobenzene MR 2 SDWIS / NH0342050 / 2969
1994 1,1-Dichloroethylene MR 2 SDWIS / NH0342050 / 2977
1994 1,1,1-Trichloroethane MR 2 SDWIS / NH0342050 / 2981
1994 Carbon tetrachloride MR 2 SDWIS / NH0342050 / 2982
1994 1,2-Dichloropropane MR 2 SDWIS / NH0342050 / 2983
1994 Trichloroethylene MR 2 SDWIS / NH0342050 / 2984
1994 1,1,2-Trichloroethane MR 2 SDWIS / NH0342050 / 2985
1994 CHLOROBENZENE MR 2 SDWIS / NH0342050 / 2989
1994 Benzene MR 2 SDWIS / NH0342050 / 2990

How DEER RUN Compares

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

Metric DEER RUN New Hampshire avg Federal benchmark
Total violations 59 63.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 5 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 150 506 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is DEER RUN water safe to drink? ▼
DEER RUN (PWS ID: NH0342050) has 59 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 150 people using Groundwater sources.
How many people does DEER RUN serve? ▼
DEER RUN serves 150 people in MOULTONBOROUGH, New Hampshire. It is a Private-owned system using Groundwater water sources with 60 service connections.
What type of violations does DEER RUN have? ▼
DEER RUN has 59 total violations: 5 health-based violations (MCL exceedances or treatment failures), 52 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in DEER RUN water? ▼
No PFAS testing data is available for DEER RUN under the EPA's UCMR5 monitoring program.
What water source does DEER RUN use? ▼
DEER RUN 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.

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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 PlainWater Editorial