Public water system · NH0778080
ActiveLarrabee Commons
At a glance
Larrabee Commons (PWSID NH0778080) is an active transient non-community water system in Merrimack County, New Hampshire. It reports serving 80 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
80
Service connections
3
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Larrabee Commons compare with other water systems in Merrimack County?
By EPA's size categories, Larrabee Commons is a very small system (500 people or fewer). Merrimack County has 244 active public water systems. Its population served is well below the county average of 509 people per system, and accounts for less than 0.1% of the 124,152 people reported by systems filed under the county. Across New Hampshire, the 2,450 active systems average 508 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Larrabee Commons is about 44% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. New Hampshire has 1,291 active transient non-community water systems, 53% 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 Larrabee Commons?
EPA lists Larrabee Commons 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. 194 of the 244 active systems in Merrimack County (80%) are also privately owned.
Does Larrabee Commons have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2016. The violations listed here began between November 2016 and December 2016. By type: 1 reporting and 1 monitoring and reporting. The contaminants or rules involved are Revised Total Coliform Rule and E. coli. EPA lists 2 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2016-12-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-11-17 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
All 2 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.
Larrabee Commons: frequently asked questions
Who runs Larrabee Commons?
Larrabee Commons (PWSID NH0778080) is a transient non-community water system privately owned. It is regulated by the NH state drinking water program.
How many people does Larrabee Commons serve?
Larrabee Commons reports serving 80 people through 3 service connections in Merrimack County, New Hampshire.
Where does Larrabee Commons 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 Larrabee Commons have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2016. 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 Larrabee Commons' 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 2 violations for this system; none is health-based, and the most recent began in December 2016. For current results, consult EPA ECHO, or the NH state drinking water program.
Where can I find Larrabee Commons' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Larrabee Commons is a 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 Merrimack County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Concord Water Dept | Merrimack | 44,215 | Community | Surface water |
| Franklin Water Works | Merrimack | 7,200 | Community | Groundwater |
| Pembroke Water Works | Merrimack | 5,200 | Community | Groundwater |
| Central Hooksett Water Pct | Merrimack | 4,650 | Community | Purchased surface water |
| Penacook Boscawen Water Pct | Merrimack | 3,800 | Community | Groundwater |
| New London Springfield Water | Merrimack | 3,250 | Community | Groundwater |
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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, “Larrabee Commons, PWSID NH0778080, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/larrabee-commons-nh0778080 (data as of October 1, 2026).