Public water system · NH2305050
ActiveMonadnock Regional High Sch
At a glance
Monadnock Regional High Sch (PWSID NH2305050) is an active non-transient non-community water system in Cheshire County, New Hampshire. It reports serving 1,202 people through 3 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, one is health-based, and the most recent began in January 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,202
Service connections
3
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Monadnock Regional High Sch compare with other water systems in Cheshire County?
By EPA's size categories, Monadnock Regional High Sch is a small system (501 to 3,300 people). Cheshire County has 169 active public water systems. Its population served is about 194% above the county average of 409 people per system, and accounts for 1.7% of the 69,037 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 Monadnock Regional High Sch is about 180% above 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 Monadnock Regional High Sch?
EPA lists Monadnock Regional 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. 37 of the 169 active systems in Cheshire County (22%) are also owned by a local government.
Does Monadnock Regional High Sch have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2008. The violations listed here began between March 2006 and January 2008. By type: 11 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Public Notice (11 of them). EPA lists 11 as unaddressed and 1 as resolved. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2006-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
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.
Monadnock Regional High Sch: frequently asked questions
Who runs Monadnock Regional High Sch?
Monadnock Regional High Sch (PWSID NH2305050) 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 Monadnock Regional High Sch serve?
Monadnock Regional High Sch reports serving 1,202 people through 3 service connections in Cheshire County, New Hampshire.
Where does Monadnock Regional 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 Monadnock Regional High Sch 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 January 2008. 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 Monadnock Regional 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. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2008. For current results, consult EPA ECHO, or the NH state drinking water program.
Where can I find Monadnock Regional High Sch's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Monadnock Regional 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 Cheshire County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Keene Water Dept | Cheshire | 30,000 | Community | Surface water |
| Jaffrey Water Works | Cheshire | 3,800 | Community | Groundwater |
| Winchester Water Dept | Cheshire | 2,800 | Community | Groundwater |
| North Hinsdale Water Dept | Cheshire | 1,800 | Community | Groundwater |
| N Swanzey Water and Fire Prct | Cheshire | 1,700 | Community | Purchased surface water |
| Franklin Pierce University | Cheshire | 1,638 | Non-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, “Monadnock Regional High Sch, PWSID NH2305050, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/monadnock-regional-high-sch-nh2305050 (data as of October 1, 2026).