Public water system · NH0413020
ActiveConnecticut River MHP
At a glance
Connecticut River MHP (PWSID NH0413020) is an active community water system in Sullivan County, New Hampshire. It reports serving 50 people through 18 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, 4 are health-based, and the most recent began in July 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
18
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Connecticut River MHP compare with other water systems in Sullivan County?
By EPA's size categories, Connecticut River MHP 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 0.2% 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 community water system reports serving 6,703 people, so Connecticut River MHP 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 Connecticut River MHP?
EPA lists Connecticut River MHP 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. 44 of the 65 active systems in Sullivan County (68%) are also privately owned.
Does Connecticut River MHP have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in July 2014. The violations listed here began between July 2004 and July 2014. By type: 5 monitoring and reporting, 3 public notice, recordkeeping or other, 3 required treatment not met and 1 contaminant level above the legal limit. 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 |
|---|---|---|---|---|
| 2014-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2014-03-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-02-09 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2011-02-22 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2009-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2007-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2007-04-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2006-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2006-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2006-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | 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.
Connecticut River MHP: frequently asked questions
Who runs Connecticut River MHP?
Connecticut River MHP (PWSID NH0413020) is a community water system privately owned. It is regulated by the NH state drinking water program.
How many people does Connecticut River MHP serve?
Connecticut River MHP reports serving 50 people through 18 service connections in Sullivan County, New Hampshire.
Where does Connecticut River MHP 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 Connecticut River MHP have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in July 2014. 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 Connecticut River MHP'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, 4 are health-based, and the most recent began in July 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.
Where can I find Connecticut River MHP's water quality report?
As a community water system, Connecticut River MHP 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 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 |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Connecticut River MHP, PWSID NH0413020, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/connecticut-river-mhp-nh0413020 (data as of October 1, 2026).