Skip to content
AquaCensus

Public water system · NH1193020

Active

Elm Brook Village

At a glance

Elm Brook Village (PWSID NH1193020) is an active community water system in Merrimack County, New Hampshire. It reports serving 90 people through 36 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in September 2022.

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

Population served

90

Service connections

36

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDNH1193020
System typeCommunity water system
Activity statusActive
Population served90
Service connections36
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyNH state drinking water program
City servedHopkinton
StateNew Hampshire
ZIP—
CountyMerrimack County

How does Elm Brook Village compare with other water systems in Merrimack County?

By EPA's size categories, Elm Brook Village 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 community water system reports serving 6,703 people, so Elm Brook Village is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New Hampshire has 706 active community water systems, 29% 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 Elm Brook Village?

EPA lists Elm Brook Village 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 Elm Brook Village have drinking water violations?

Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in September 2022. The violations listed here began between January 2011 and September 2022. By type: 11 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Combined Uranium (7 of them). EPA lists 12 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.

BeganViolationContaminant or ruleHealth-basedStatus
2022-09-01Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1ARevised Total Coliform Rulecode 8000YesResolved
2022-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1ARevised Total Coliform Rulecode 8000YesResolved
2021-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved
2020-10-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved
2020-09-20Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2020-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved
2013-06-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
2013-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved
2012-10-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
2011-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved
2011-04-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved
2011-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Combined Uraniumcode 4006YesResolved

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.

Elm Brook Village: frequently asked questions

Who runs Elm Brook Village?

Elm Brook Village (PWSID NH1193020) is a community water system privately owned. It is regulated by the NH state drinking water program.

How many people does Elm Brook Village serve?

Elm Brook Village reports serving 90 people through 36 service connections in Merrimack County, New Hampshire.

Where does Elm Brook Village 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 Elm Brook Village have any drinking water violations?

Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in September 2022. 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 Elm Brook Village'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, 11 are health-based, and the most recent began in September 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.

Where can I find Elm Brook Village's water quality report?

As a community water system, Elm Brook Village must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

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

Related pages

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

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, “Elm Brook Village, PWSID NH1193020, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/elm-brook-village-nh1193020 (data as of October 1, 2026).