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Community Water System · PWS NH1351010

Lincoln Water Works

Lincoln, New Hampshire 03251 - drinking water served from surface water sources to 3,300 people, tracked in EPA SDWIS and UCMR5.

3,300
People served
63
EPA violations
48
Health-based
Untested
UCMR5 result

The verdict

EPA records 63 drinking-water violations at Lincoln Water Works, 76% of them health-based - below the New Hampshire per-system average.

63
Total EPA violations on record
76%
Health-based (MCL / treatment failure)
3,300
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lincoln Water Works

Lincoln Water Works is a local-owned community water system that delivers drinking water to 3,300 residents in Lincoln, New Hampshire (Grafton County) through 2,000 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 63 total violations for this system , of which 48 (76%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 8 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 32 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%).

Lincoln Water Works's 63 violations sit below 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
3,300
Total Violations
63
Health-Based Violations
48
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,000
County
Grafton
School/Daycare
No
MCL Violations
46
Monitoring Violations
8
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MCL 32 2019
TTHM MCL 8 2018
Coliform (TCR) MCL 5 1991
CARBON, TOTAL MR 4 2023
Coliform (TCR) MR 4 1991
Lead and Copper Rule TT 2 1994
Beryllium, Total MCL 1 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 Lincoln Water Works.

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 NH1351010 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
2023 CARBON, TOTAL MR 4 SDWIS / NH1351010 / 2920
2019 Total Haloacetic Acids (HAA5) MCL 32 SDWIS / NH1351010 / 2456
2018 TTHM MCL 8 SDWIS / NH1351010 / 2950
1996 Beryllium, Total MCL 1 SDWIS / NH1351010 / 1075
1994 Lead and Copper Rule TT 2 SDWIS / NH1351010 / 5000
1991 Coliform (TCR) MCL 5 SDWIS / NH1351010 / 3100
1991 Coliform (TCR) MR 4 SDWIS / NH1351010 / 3100

How Lincoln Water Works Compares

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

Metric Lincoln Water Works New Hampshire avg Federal benchmark
Total violations 63 63.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 48 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 3,300 506 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 Lincoln Water Works water safe to drink? ▼
Lincoln Water Works (PWS ID: NH1351010) has 63 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,300 people using Surface Water sources.
How many people does Lincoln Water Works serve? ▼
Lincoln Water Works serves 3,300 people in Lincoln, New Hampshire. It is a Local-owned system using Surface Water water sources with 2,000 service connections.
What type of violations does Lincoln Water Works have? ▼
Lincoln Water Works has 63 total violations: 48 health-based violations (MCL exceedances or treatment failures), 8 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lincoln Water Works water? ▼
No PFAS testing data is available for Lincoln Water Works under the EPA's UCMR5 monitoring program.
What water source does Lincoln Water Works use? ▼
Lincoln Water Works uses Surface Water 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.