Public water system · NH1973050

Active

Hill Top

At a glance

Hill Top (PWSID NH1973050) is an active community water system in Rockingham County, New Hampshire. It reports serving 140 people through 56 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; 6 are health-based, and the most recent began in January 2011.

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

Population served

140

Service connections

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDNH1973050

System typeCommunity water system

Activity statusActive

Population served140

Service connections56

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyNH state drinking water program

City servedRaymond

StateNew Hampshire

ZIP—

CountyRockingham County

How does Hill Top compare with other water systems in Rockingham County?

By EPA's size categories, Hill Top is a very small system (500 people or fewer). Rockingham County has 554 active public water systems. Its population served is well below the county average of 492 people per system, and accounts for less than 0.1% 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 community water system reports serving 6,703 people, so Hill Top 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 Hill Top?

EPA lists Hill Top 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. 477 of the 554 active systems in Rockingham County (86%) are also privately owned.

Does Hill Top have drinking water violations?

EPA's records list 9 violations for this system; 6 are health-based, and the most recent began in January 2011. The violations listed here began between January 2007 and January 2011. By type: 5 contaminant level above the legal limit, 2 public notice, recordkeeping or other, 1 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 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
2011-01-17	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2010-11-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2010-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2010-06-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2009-09-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2009-06-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2009-06-01	Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25	Total coliform bacteria (TCR)code 3100	No	Resolved
2008-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2007-01-01	Required treatment not metOCCT/SOWT Study/Recommendation · code 57	Lead and Copper Rulecode 5000	Yes	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.

Hill Top: frequently asked questions

Who runs Hill Top?

Hill Top (PWSID NH1973050) is a community water system privately owned. It is regulated by the NH state drinking water program.

How many people does Hill Top serve?

Hill Top reports serving 140 people through 56 service connections in Rockingham County, New Hampshire.

Where does Hill Top 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 Hill Top have any drinking water violations?

EPA's records list 9 violations for this system; 6 are health-based, and the most recent began in January 2011. 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 Hill Top'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; 6 are health-based, and the most recent began in January 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.

Where can I find Hill Top's water quality report?

As a community water system, Hill Top 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 Rockingham County

Water system	County	Population served	Type	Source
Aquarion Water/Nh	Rockingham	34,000	Community	Groundwater
Portsmouth Water Works	Rockingham	33,000	Community	Surface water
Salem Water Dept	Rockingham	21,000	Community	Surface water
Derry Water Dept	Rockingham	17,370	Community	Purchased surface water
Seabrook Water Dept	Rockingham	14,000	Community	Groundwater
Exeter Water Dept	Rockingham	12,236	Community	Surface 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, “Hill Top, PWSID NH1973050, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/hill-top-nh1973050 (data as of October 1, 2026).