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Public water system · NH2296010

Active

Labsphere

At a glance

Labsphere (PWSID NH2296010) is an active non-transient non-community water system in Merrimack County, New Hampshire. It reports serving 86 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026.

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

Population served

86

Service connections

1

Primary source

GW

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDNH2296010
System typeNon-transient non-community water system
Activity statusActive
Population served86
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyNH state drinking water program
City servedSutton
StateNew Hampshire
ZIP—
CountyMerrimack County

How does Labsphere compare with other water systems in Merrimack County?

By EPA's size categories, Labsphere 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 non-transient non-community water system reports serving 430 people, so Labsphere 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 Labsphere?

EPA lists Labsphere 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 Labsphere have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. The violations listed here began between January 1996 and January 2026. By type: 7 monitoring and reporting, 2 monitoring, 2 public notice, recordkeeping or other and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 11 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.

BeganViolationContaminant or ruleHealth-basedStatus
2026-01-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoArchived
2021-11-12ReportingReport Sample Result/Fail Monitor (RTCR) · code 4BRevised Total Coliform Rulecode 8000NoResolved
2021-10-01MonitoringMonitoring, Additional Routine (RTCR) · code 3BRevised Total Coliform Rulecode 8000NoResolved
2017-10-01Monitoring and reportingMonitoring, Regular · code 03Arseniccode 1005NoResolved
2011-12-01Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2011-11-29Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2011-07-01Monitoring and reportingMonitoring, Regular · code 03Arseniccode 1005NoResolved
2011-07-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
1996-01-01Monitoring and reportingMonitoring, Regular · code 03Toxaphenecode 2020NoResolved
1996-01-01Monitoring and reportingMonitoring, Regular · code 03Endrincode 2005NoResolved
1996-01-01Monitoring and reportingMonitoring, Regular · code 03Xylenes, Totalcode 2955NoResolved
1996-01-01Monitoring and reportingMonitoring, Regular · code 031,1,1-Trichloroethanecode 2981NoResolved

The 12 most recent 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.

Labsphere: frequently asked questions

Who runs Labsphere?

Labsphere (PWSID NH2296010) is a non-transient non-community water system privately owned. It is regulated by the NH state drinking water program.

How many people does Labsphere serve?

Labsphere reports serving 86 people through 1 service connection in Merrimack County, New Hampshire.

Where does Labsphere 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 Labsphere have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. 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 Labsphere'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the NH state drinking water program.

Where can I find Labsphere's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Labsphere 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 Merrimack County

Water systemCountyPopulation servedTypeSource
Concord Water DeptMerrimack44,215CommunitySurface water
Franklin Water WorksMerrimack7,200CommunityGroundwater
Pembroke Water WorksMerrimack5,200CommunityGroundwater
Central Hooksett Water PctMerrimack4,650CommunityPurchased surface water
Penacook Boscawen Water PctMerrimack3,800CommunityGroundwater
New London Springfield WaterMerrimack3,250CommunityGroundwater

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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, “Labsphere, PWSID NH2296010, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/labsphere-nh2296010 (data as of October 1, 2026).