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States → New Hampshire

Non-Transient Non-Community Water System · PWS NH0885020

Gilford Middle and High Sch

Gilford, New Hampshire 03249 - drinking water served from groundwater sources to 958 people, tracked in EPA SDWIS and UCMR5.

958
People served
102
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 102 drinking-water violations at Gilford Middle and High Sch, 10% of them health-based - above the New Hampshire per-system average.

102
Total EPA violations on record
10%
Health-based (MCL / treatment failure)
958
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Gilford Middle and High Sch

Gilford Middle and High Sch is a local-owned non-transient non-community water system that delivers drinking water to 958 residents in Gilford, New Hampshire (Belknap County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 102 total violations for this system , of which 10 (10%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 92 monitoring and reporting violations are on file. The most recent violation on record dates to 2004.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 10 violations (MCL, health-based). 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%).

Gilford Middle and High Sch's 102 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
958
Total Violations
102
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Belknap
School/Daycare
Yes
MCL Violations
10
Monitoring Violations
92
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 10 2004
Nitrate MR 4 1994
1,2,4-Trichlorobenzene MR 4 1994
Xylenes, Total MR 4 1994
DICHLOROMETHANE MR 4 1994
o-Dichlorobenzene MR 4 1994
trans-1,2-Dichloroethylene MR 4 1994
1,2-Dichloroethane MR 4 1994
1,2-Dichloropropane MR 4 1994
Tetrachloroethylene MR 4 1994
Benzene MR 4 1994
Toluene MR 4 1994
CHLOROBENZENE MR 4 1994
Coliform (TCR) MR 4 1994
Ethylbenzene MR 4 1994
1,1,2-Trichloroethane MR 4 1994
cis-1,2-Dichloroethylene MR 4 1994
Vinyl chloride MR 4 1994
Carbon tetrachloride MR 4 1994
p-Dichlorobenzene MR 4 1994
Trichloroethylene MR 4 1994
1,1,1-Trichloroethane MR 4 1994
Styrene MR 4 1994
1,1-Dichloroethylene MR 4 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 Gilford Middle and High 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 NH0885020 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
2004 Coliform (TCR) MCL 10 SDWIS / NH0885020 / 3100
1994 Nitrate MR 4 SDWIS / NH0885020 / 1040
1994 1,2,4-Trichlorobenzene MR 4 SDWIS / NH0885020 / 2378
1994 Xylenes, Total MR 4 SDWIS / NH0885020 / 2955
1994 DICHLOROMETHANE MR 4 SDWIS / NH0885020 / 2964
1994 o-Dichlorobenzene MR 4 SDWIS / NH0885020 / 2968
1994 trans-1,2-Dichloroethylene MR 4 SDWIS / NH0885020 / 2979
1994 1,2-Dichloroethane MR 4 SDWIS / NH0885020 / 2980
1994 1,2-Dichloropropane MR 4 SDWIS / NH0885020 / 2983
1994 Tetrachloroethylene MR 4 SDWIS / NH0885020 / 2987
1994 Benzene MR 4 SDWIS / NH0885020 / 2990
1994 Toluene MR 4 SDWIS / NH0885020 / 2991
1994 CHLOROBENZENE MR 4 SDWIS / NH0885020 / 2989
1994 Coliform (TCR) MR 4 SDWIS / NH0885020 / 3100
1994 Ethylbenzene MR 4 SDWIS / NH0885020 / 2992

How Gilford Middle and High Sch Compares

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

Metric Gilford Middle and High Sch New Hampshire avg Federal benchmark
Total violations 102 63.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 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 958 506 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 Gilford Middle and High Sch water safe to drink? ▼
Gilford Middle and High Sch (PWS ID: NH0885020) has 102 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 958 people using Groundwater sources.
How many people does Gilford Middle and High Sch serve? ▼
Gilford Middle and High Sch serves 958 people in Gilford, New Hampshire. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does Gilford Middle and High Sch have? ▼
Gilford Middle and High Sch has 102 total violations: 10 health-based violations (MCL exceedances or treatment failures), 92 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Gilford Middle and High Sch water? ▼
No PFAS testing data is available for Gilford Middle and High Sch under the EPA's UCMR5 monitoring program.
What water source does Gilford Middle and High Sch use? ▼
Gilford Middle and High 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.