Public water system · NH0805040
ActiveExeter High Sch
At a glance
Exeter High Sch (PWSID NH0805040) is an active non-transient non-community water system in Rockingham County, New Hampshire. It reports serving 1,605 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in November 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,605
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Exeter High Sch compare with other water systems in Rockingham County?
By EPA's size categories, Exeter High Sch is a small system (501 to 3,300 people). Rockingham County has 554 active public water systems. Its population served is about 3.3 times the county average of 492 people per system, and accounts for 0.6% 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 non-transient non-community water system reports serving 430 people, so Exeter High Sch is about 3.7 times that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. New Hampshire has 453 active non-transient non-community water systems, 18% 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 Exeter High Sch?
EPA lists Exeter High Sch 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. 70 of the 554 active systems in Rockingham County (13%) are also owned by a local government.
Does Exeter High Sch have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in November 2025. The violations listed here began between January 2010 and November 2025. By type: 3 monitoring and reporting, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 4 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-11-12 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2012-07-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
All 5 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.
Exeter High Sch: frequently asked questions
Who runs Exeter High Sch?
Exeter High Sch (PWSID NH0805040) is a non-transient non-community water system owned by a local government. It is regulated by the NH state drinking water program.
How many people does Exeter High Sch serve?
Exeter High Sch reports serving 1,605 people through 1 service connection in Rockingham County, New Hampshire.
Where does Exeter High Sch 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 Exeter High Sch have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in November 2025. 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 Exeter High Sch'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 5 violations for this system; none is health-based, and the most recent began in November 2025. For current results, consult EPA ECHO, or the NH state drinking water program.
Where can I find Exeter High Sch's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Exeter High Sch is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
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, “Exeter High Sch, PWSID NH0805040, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/exeter-high-sch-nh0805040 (data as of October 1, 2026).