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Public water system · NH1935020

Active

Timberlane Middle Sch

At a glance

Timberlane Middle Sch (PWSID NH1935020) is an active non-transient non-community water system in Rockingham County, New Hampshire. It reports serving 897 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in May 2012.

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

Population served

897

Service connections

1

Primary source

GW

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDNH1935020
System typeNon-transient non-community water system
Activity statusActive
Population served897
Service connections1
Primary water sourceGroundwater
Owner typeLocal government
Primacy agencyNH state drinking water program
City servedPlaistow
StateNew Hampshire
ZIP—
CountyRockingham County

How does Timberlane Middle Sch compare with other water systems in Rockingham County?

By EPA's size categories, Timberlane Middle Sch is a small system (501 to 3,300 people). Rockingham County has 554 active public water systems. Its population served is about 82% above the county average of 492 people per system, and accounts for 0.3% of the 272,726 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 Timberlane Middle Sch is about twice 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 Timberlane Middle Sch?

EPA lists Timberlane Middle Sch as owned by a local government. 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. 70 of the 554 active systems in Rockingham County (13%) are also owned by a local government.

Does Timberlane Middle Sch have drinking water violations?

EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in May 2012. The violations listed here began between July 1993 and May 2012. By type: 3 monitoring and reporting, 2 contaminant level above the legal limit, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 6 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

BeganViolationContaminant or ruleHealth-basedStatus
2012-05-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2010-10-31Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2010-09-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
1998-01-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
1995-01-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
1994-01-01Required treatment not metOCCT/SOWT Study/Recommendation · code 57Lead and Copper Rulecode 5000YesUnaddressed
1993-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved

All 7 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.

Timberlane Middle Sch: frequently asked questions

Who runs Timberlane Middle Sch?

Timberlane Middle Sch (PWSID NH1935020) is a non-transient non-community water system owned by a local government. It is regulated by the NH state drinking water program.

How many people does Timberlane Middle Sch serve?

Timberlane Middle Sch reports serving 897 people through 1 service connection in Rockingham County, New Hampshire.

Where does Timberlane Middle Sch 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 Timberlane Middle Sch have any drinking water violations?

EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in May 2012. 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 Timberlane Middle Sch'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 7 violations for this system; 3 are health-based, and the most recent began in May 2012. For current results, consult EPA ECHO, or the NH state drinking water program.

Where can I find Timberlane Middle Sch's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Timberlane Middle Sch 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 Rockingham County

Water systemCountyPopulation servedTypeSource
Aquarion Water/NhRockingham34,000CommunityGroundwater
Portsmouth Water WorksRockingham33,000CommunitySurface water
Salem Water DeptRockingham21,000CommunitySurface water
Derry Water DeptRockingham17,370CommunityPurchased surface water
Seabrook Water DeptRockingham14,000CommunityGroundwater
Exeter Water DeptRockingham12,236CommunitySurface 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, “Timberlane Middle Sch, PWSID NH1935020, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/timberlane-middle-sch-nh1935020 (data as of October 1, 2026).