Public water system · NH1973030
ActiveGreen Hills Ests
At a glance
Green Hills Ests (PWSID NH1973030) is an active community water system in Rockingham County, New Hampshire. It reports serving 618 people through 247 service connections. Its primary water source is purchased groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
618
Service connections
247
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Green Hills Ests compare with other water systems in Rockingham County?
By EPA's size categories, Green Hills Ests is a small system (501 to 3,300 people). Rockingham County has 554 active public water systems. Its population served is about 26% above the county average of 492 people per system, and accounts for 0.2% 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 Green Hills Ests 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 10 New Hampshire systems (0.4%) list purchased groundwater as their primary source.
Who owns and regulates Green Hills Ests?
EPA lists Green Hills Ests 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 Green Hills Ests have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2010. The violations listed here began between October 2000 and July 2010. By type: 1 monitoring and reporting and 1 contaminant level above the legal limit. The contaminants or rules involved are Chlorine and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2010-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2000-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
Green Hills Ests: frequently asked questions
Who runs Green Hills Ests?
Green Hills Ests (PWSID NH1973030) is a community water system privately owned. It is regulated by the NH state drinking water program.
How many people does Green Hills Ests serve?
Green Hills Ests reports serving 618 people through 247 service connections in Rockingham County, New Hampshire.
Where does Green Hills Ests get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Green Hills Ests have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2010. 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 Green Hills Ests' 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 2 violations for this system; 1 is health-based, and the most recent began in July 2010. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.
Where can I find Green Hills Ests' water quality report?
As a community water system, Green Hills Ests 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, “Green Hills Ests, PWSID NH1973030, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/green-hills-ests-nh1973030 (data as of October 1, 2026).