Public water system · NH0525010
ActiveCornish Elementary Sch
At a glance
Cornish Elementary Sch (PWSID NH0525010) is an active non-transient non-community water system in Sullivan County, New Hampshire. It reports serving 140 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
140
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Cornish Elementary Sch compare with other water systems in Sullivan County?
By EPA's size categories, Cornish Elementary Sch is a very small system (500 people or fewer). Sullivan County has 65 active public water systems. Its population served is well below the county average of 510 people per system, and accounts for 0.4% of the 33,165 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 Cornish Elementary Sch is well below 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 Cornish Elementary Sch?
EPA lists Cornish Elementary 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. 19 of the 65 active systems in Sullivan County (29%) are also owned by a local government.
Does Cornish Elementary Sch have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2022. The violations listed here began between January 1995 and January 2022. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Chlorine (3 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 |
|---|---|---|---|---|
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2021-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2017-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | 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.
Cornish Elementary Sch: frequently asked questions
Who runs Cornish Elementary Sch?
Cornish Elementary Sch (PWSID NH0525010) 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 Cornish Elementary Sch serve?
Cornish Elementary Sch reports serving 140 people through 2 service connections in Sullivan County, New Hampshire.
Where does Cornish Elementary 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 Cornish Elementary Sch have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2022. 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 Cornish Elementary 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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2022. For current results, consult EPA ECHO, or the NH state drinking water program.
Where can I find Cornish Elementary Sch's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cornish Elementary 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 Sullivan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Claremont Water Dept | Sullivan | 9,000 | Community | Surface water |
| Newport Water Works | Sullivan | 5,000 | Community | Surface water |
| Village Dist of Eastman | Sullivan | 3,400 | Community | Groundwater |
| Charlestown Water Works | Sullivan | 2,850 | Community | Groundwater |
| Sunapee Water Works | Sullivan | 1,680 | Community | Surface water |
| Springfield Rest Area | Sullivan | 999 | Transient non-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, “Cornish Elementary Sch, PWSID NH0525010, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/cornish-elementary-sch-nh0525010 (data as of October 1, 2026).