Public water system · NH1386010

Active

Peak Three

At a glance

Peak Three (PWSID NH1386010) is an active non-transient non-community water system in Grafton County, New Hampshire. It reports serving 40 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in April 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDNH1386010

System typeNon-transient non-community water system

Activity statusActive

Population served40

Service connections1

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyNH state drinking water program

City servedLittleton

StateNew Hampshire

ZIP—

CountyGrafton County

How does Peak Three compare with other water systems in Grafton County?

By EPA's size categories, Peak Three is a very small system (500 people or fewer). Grafton County has 270 active public water systems. Its population served is well below the county average of 394 people per system, and accounts for less than 0.1% of the 106,236 people reported by systems filed under the county. Across New Hampshire, the 2,450 active systems average 508 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Peak Three is well below that figure.

What does “non-transient non-community water system” mean?

A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. New Hampshire has 453 active non-transient non-community water systems, 18% of the state's 2,450 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,374 New Hampshire systems (97%) list groundwater as their primary source.

Who owns and regulates Peak Three?

EPA lists Peak Three as privately owned. The NH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 213 of the 270 active systems in Grafton County (79%) are also privately owned.

Does Peak Three have drinking water violations?

EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in April 2025. The violations listed here began between October 1996 and April 2025. By type: 4 monitoring and reporting, 2 contaminant level above the legal limit, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 7 as resolved and 1 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.

Began	Violation	Contaminant or rule	Health-based	Status
2025-04-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2024-08-13	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2024-07-01	MonitoringMonitoring, Additional Routine (RTCR) · code 3B	Revised Total Coliform Rulecode 8000	No	Resolved
2022-04-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2003-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2000-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1997-04-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Archived
1996-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved

All 8 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Peak Three: frequently asked questions

Who runs Peak Three?

Peak Three (PWSID NH1386010) is a non-transient non-community water system privately owned. It is regulated by the NH state drinking water program.

How many people does Peak Three serve?

Peak Three reports serving 40 people through 1 service connection in Grafton County, New Hampshire.

Where does Peak Three get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Peak Three have any drinking water violations?

EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in April 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Peak Three's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in April 2025. For current results, consult EPA ECHO, or the NH state drinking water program.

Where can I find Peak Three's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Peak Three is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Grafton County

Water system	County	Population served	Type	Source
Lebanon Water Dept	Grafton	13,600	Community	Surface water
Hanover Water Dept	Grafton	9,600	Community	Surface water
Plymouth Vlg Water and Sewer	Grafton	6,700	Community	Groundwater
Littleton Water and Light	Grafton	6,500	Community	Surface water
Bristol Water Works	Grafton	3,575	Community	Groundwater
Lincoln Water Works	Grafton	3,300	Community	Surface water

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Peak Three, PWSID NH1386010, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/peak-three-nh1386010 (data as of October 1, 2026).