Public water system · NH1181010

Active

Central Hooksett Water Pct

At a glance

Central Hooksett Water Pct (PWSID NH1181010) is an active community water system in Merrimack County, New Hampshire. It reports serving 4,650 people through 1,784 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in April 2018.

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

Population served

4,650

Service connections

1,784

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDNH1181010

System typeCommunity water system

Activity statusActive

Population served4,650

Service connections1,784

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyNH state drinking water program

City servedHooksett

StateNew Hampshire

ZIP—

CountyMerrimack County

How does Central Hooksett Water Pct compare with other water systems in Merrimack County?

By EPA's size categories, Central Hooksett Water Pct is a medium system (3,301 to 10,000 people). Merrimack County has 244 active public water systems, and Central Hooksett Water Pct is the 4th-largest of them by population served. Its population served is about 9.1 times the county average of 509 people per system, and accounts for 3.7% 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 Central Hooksett Water Pct is about 31% 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 27 New Hampshire systems (1.1%) list purchased surface water as their primary source.

Who owns and regulates Central Hooksett Water Pct?

EPA lists Central Hooksett Water Pct 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. 40 of the 244 active systems in Merrimack County (16%) are also owned by a local government.

Does Central Hooksett Water Pct have drinking water violations?

EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in April 2018. The violations listed here began between January 2004 and April 2018. By type: 6 monitoring and reporting, 2 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (3 of them). EPA lists 9 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
2018-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2015-02-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2007-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Resolved
2005-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2004-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2004-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2004-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2004-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2004-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved

All 9 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.

Central Hooksett Water Pct: frequently asked questions

Who runs Central Hooksett Water Pct?

Central Hooksett Water Pct (PWSID NH1181010) is a community water system owned by a local government. It is regulated by the NH state drinking water program.

How many people does Central Hooksett Water Pct serve?

Central Hooksett Water Pct reports serving 4,650 people through 1,784 service connections in Merrimack County, New Hampshire.

Where does Central Hooksett Water Pct get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does Central Hooksett Water Pct have any drinking water violations?

EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in April 2018. 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 Central Hooksett Water Pct'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 9 violations for this system; 2 are health-based, and the most recent began in April 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.

Where can I find Central Hooksett Water Pct's water quality report?

As a community water system, Central Hooksett Water Pct 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 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
Penacook Boscawen Water Pct	Merrimack	3,800	Community	Groundwater
New London Springfield Water	Merrimack	3,250	Community	Groundwater
Hooksett Village Water Pct	Merrimack	3,000	Community	Groundwater

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, “Central Hooksett Water Pct, PWSID NH1181010, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/central-hooksett-water-pct-nh1181010 (data as of October 1, 2026).