Public water system · NH0153020
ActiveHalcyon Hill
At a glance
Halcyon Hill (PWSID NH0153020) is an active community water system in Strafford County, New Hampshire. It reports serving 58 people through 24 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, one is health-based, and the most recent began in October 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
58
Service connections
24
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Halcyon Hill compare with other water systems in Strafford County?
By EPA's size categories, Halcyon Hill is a very small system (500 people or fewer). Strafford County has 131 active public water systems. Its population served is well below the county average of 825 people per system, and accounts for less than 0.1% of the 108,010 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 Halcyon Hill 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 Halcyon Hill?
EPA lists Halcyon Hill 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. 108 of the 131 active systems in Strafford County (82%) are also privately owned.
Does Halcyon Hill have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2017. The violations listed here began between January 2012 and October 2017. By type: 10 monitoring and reporting, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (2 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2017-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2016-07-01 | Required treatment not metTreatment Technique, Corrective/Expedited Actions (RTCR) · code 2C | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2016-07-01 | ReportingNotify Level 1/Level 2 Treatment Technique Violation, Correct Action (RTCR) · code 4F | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2013-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
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.
Halcyon Hill: frequently asked questions
Who runs Halcyon Hill?
Halcyon Hill (PWSID NH0153020) is a community water system privately owned. It is regulated by the NH state drinking water program.
How many people does Halcyon Hill serve?
Halcyon Hill reports serving 58 people through 24 service connections in Strafford County, New Hampshire.
Where does Halcyon Hill 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 Halcyon Hill have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2017. 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 Halcyon Hill'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, one is health-based, and the most recent began in October 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.
Where can I find Halcyon Hill's water quality report?
As a community water system, Halcyon Hill 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 Strafford County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Dover Water Dept | Strafford | 29,000 | Community | Groundwater |
| Rochester Water Dept | Strafford | 25,000 | Community | Surface water |
| Unh/Durham Water Sys | Strafford | 16,000 | Community | Surface water |
| Somersworth Water Works | Strafford | 12,200 | Community | Surface water |
| Farmington Water Dept | Strafford | 3,250 | Community | Groundwater |
| Rollinsford Water Sewer Dist | Strafford | 1,688 | Community | Groundwater |
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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, “Halcyon Hill, PWSID NH0153020, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/halcyon-hill-nh0153020 (data as of October 1, 2026).