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WELL HILL

PWS ID: NH0053010 · ALSTEAD, New Hampshire 03602

WELL HILL serves 60 people in ALSTEAD, New Hampshire using Groundwater water sources. It has 219 recorded EPA violations, including 12 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: WELL HILL

WELL HILL is a private-owned community water system that delivers drinking water to 60 residents in ALSTEAD, New Hampshire (Cheshire County) through 17 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 219 total violations for this system , of which 12 (5%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 191 monitoring and reporting violations are on file. The most recent violation on record dates to 2007.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 12 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. WELL HILL's 219 violations sit above 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
60
Total Violations
219
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
17
County
Cheshire
School/Daycare
No
MCL Violations
12
Monitoring Violations
191
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 12 2005
Public Notice Other 5 2006
Endrin MR 4 2007
Simazine MR 4 2007
Picloram MR 4 2007
Dinoseb MR 4 2007
Hexachlorocyclopentadiene MR 4 2007
Carbofuran MR 4 2007
Atrazine MR 4 2007
LASSO MR 4 2007
Heptachlor MR 4 2007
2,4-D MR 4 2007
2,4,5-TP MR 4 2007
HEXACHLOROBENZENE MR 4 2007
Benzo(a)pyrene MR 4 2007
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2007
Chlordane MR 4 2007
cis-1,2-Dichloroethylene MR 4 1996
Xylenes, Total MR 4 1996
o-Dichlorobenzene MR 4 1996
Vinyl chloride MR 4 1996
1,1-Dichloroethylene MR 4 1996
1,1,1-Trichloroethane MR 4 1996
Carbon tetrachloride MR 4 1996
1,2-Dichloropropane MR 4 1996
Benzene MR 4 1996
Toluene MR 4 1996
Ethylbenzene MR 4 1996
CHLOROBENZENE MR 4 1996
Nitrate MR 4 1996

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 WELL HILL.

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 NH0053010 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
2007 Endrin MR 4 SDWIS / NH0053010 / 2005
2007 Simazine MR 4 SDWIS / NH0053010 / 2037
2007 Picloram MR 4 SDWIS / NH0053010 / 2040
2007 Dinoseb MR 4 SDWIS / NH0053010 / 2041
2007 Hexachlorocyclopentadiene MR 4 SDWIS / NH0053010 / 2042
2007 Carbofuran MR 4 SDWIS / NH0053010 / 2046
2007 Atrazine MR 4 SDWIS / NH0053010 / 2050
2007 LASSO MR 4 SDWIS / NH0053010 / 2051
2007 Heptachlor MR 4 SDWIS / NH0053010 / 2065
2007 2,4-D MR 4 SDWIS / NH0053010 / 2105
2007 2,4,5-TP MR 4 SDWIS / NH0053010 / 2110
2007 HEXACHLOROBENZENE MR 4 SDWIS / NH0053010 / 2274
2007 Benzo(a)pyrene MR 4 SDWIS / NH0053010 / 2306
2007 1,2-DIBROMO-3-CHLOROPROPANE MR 4 SDWIS / NH0053010 / 2931
2007 Chlordane MR 4 SDWIS / NH0053010 / 2959

How WELL HILL Compares

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

Metric WELL HILL New Hampshire avg Federal benchmark
Total violations 219 63.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 12 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 60 506 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 WELL HILL water safe to drink? ▼
WELL HILL (PWS ID: NH0053010) has 219 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does WELL HILL serve? ▼
WELL HILL serves 60 people in ALSTEAD, New Hampshire. It is a Private-owned system using Groundwater water sources with 17 service connections.
What type of violations does WELL HILL have? ▼
WELL HILL has 219 total violations: 12 health-based violations (MCL exceedances or treatment failures), 191 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WELL HILL water? ▼
No PFAS testing data is available for WELL HILL under the EPA's UCMR5 monitoring program.
What water source does WELL HILL use? ▼
WELL HILL 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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