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Community Water System · PWS NH0882090

Gunstock Glen Water

Moultonborough, New Hampshire 03254 - drinking water served from groundwater sources to 138 people, tracked in EPA SDWIS and UCMR5.

138
People served
678
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 678 drinking-water violations at Gunstock Glen Water - above the New Hampshire per-system average.

678
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
138
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Gunstock Glen Water

Gunstock Glen Water is a private-owned community water system that delivers drinking water to 138 residents in Moultonborough, New Hampshire (Belknap County) through 55 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 678 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 666 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Xylenes, Total, recorded in 17 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%).

Gunstock Glen Water's 678 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
138
Total Violations
678
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
55
County
Belknap
School/Daycare
No
MCL Violations
0
Monitoring Violations
666
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Xylenes, Total MR 17 1997
DICHLOROMETHANE MR 17 1997
o-Dichlorobenzene MR 17 1997
Vinyl chloride MR 17 1997
1,1-Dichloroethylene MR 17 1997
trans-1,2-Dichloroethylene MR 17 1997
Carbon tetrachloride MR 17 1997
1,2-Dichloropropane MR 17 1997
1,1,2-Trichloroethane MR 17 1997
Styrene MR 17 1997
cis-1,2-Dichloroethylene MR 17 1997
1,2-Dichloroethane MR 17 1997
1,1,1-Trichloroethane MR 17 1997
Benzene MR 17 1997
Toluene MR 17 1997
Ethylbenzene MR 17 1997
Nitrate MR 17 1997
p-Dichlorobenzene MR 17 1997
Tetrachloroethylene MR 17 1997
CHLOROBENZENE MR 17 1997
1,2,4-Trichlorobenzene MR 17 1997
Trichloroethylene MR 17 1997
Methoxychlor MR 11 1997
Toxaphene MR 11 1997
Glyphosate MR 11 1997
Di(2-ethylhexyl) adipate MR 11 1997
Simazine MR 11 1997
Di(2-ethylhexyl) phthalate MR 11 1997
Picloram MR 11 1997
Dinoseb MR 11 1997

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 Gunstock Glen Water.

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 NH0882090 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
2022 Consumer Confidence Rule Other 4 SDWIS / NH0882090 / 7000
2016 Revised Total Coliform Rule MON 4 SDWIS / NH0882090 / 8000
2016 Revised Total Coliform Rule RPT 4 SDWIS / NH0882090 / 8000
2003 Lead and Copper Rule MR 7 SDWIS / NH0882090 / 5000
1997 Xylenes, Total MR 17 SDWIS / NH0882090 / 2955
1997 DICHLOROMETHANE MR 17 SDWIS / NH0882090 / 2964
1997 o-Dichlorobenzene MR 17 SDWIS / NH0882090 / 2968
1997 Vinyl chloride MR 17 SDWIS / NH0882090 / 2976
1997 1,1-Dichloroethylene MR 17 SDWIS / NH0882090 / 2977
1997 trans-1,2-Dichloroethylene MR 17 SDWIS / NH0882090 / 2979
1997 Carbon tetrachloride MR 17 SDWIS / NH0882090 / 2982
1997 1,2-Dichloropropane MR 17 SDWIS / NH0882090 / 2983
1997 1,1,2-Trichloroethane MR 17 SDWIS / NH0882090 / 2985
1997 Styrene MR 17 SDWIS / NH0882090 / 2996
1997 cis-1,2-Dichloroethylene MR 17 SDWIS / NH0882090 / 2380

How Gunstock Glen Water Compares

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

Metric Gunstock Glen Water New Hampshire avg Federal benchmark
Total violations 678 63.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 138 506 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 Gunstock Glen Water water safe to drink? ▼
Gunstock Glen Water (PWS ID: NH0882090) has 678 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 138 people using Groundwater sources.
How many people does Gunstock Glen Water serve? ▼
Gunstock Glen Water serves 138 people in Moultonborough, New Hampshire. It is a Private-owned system using Groundwater water sources with 55 service connections.
What type of violations does Gunstock Glen Water have? ▼
Gunstock Glen Water has 678 total violations: 0 health-based violations (MCL exceedances or treatment failures), 666 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Gunstock Glen Water water? ▼
No PFAS testing data is available for Gunstock Glen Water under the EPA's UCMR5 monitoring program.
What water source does Gunstock Glen Water use? ▼
Gunstock Glen Water 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.