Public water system · NH1921010
ActivePlainfield Water Dept
At a glance
Plainfield Water Dept (PWSID NH1921010) is an active community water system in Sullivan County, New Hampshire. It reports serving 284 people through 118 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 July 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
284
Service connections
118
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Plainfield Water Dept compare with other water systems in Sullivan County?
By EPA's size categories, Plainfield Water Dept is a very small system (500 people or fewer). Sullivan County has 65 active public water systems. Its population served is about 44% below the county average of 510 people per system, and accounts for 0.9% 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 Plainfield Water Dept 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 Plainfield Water Dept?
EPA lists Plainfield Water Dept 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 Plainfield Water Dept have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2017. The violations listed here began between June 2009 and July 2017. By type: 7 monitoring and reporting, 3 public notice, recordkeeping or other, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Chlorine (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 |
|---|---|---|---|---|
| 2017-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2016-10-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2013-12-07 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2011-08-30 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2011-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2010-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-06-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | 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.
Plainfield Water Dept: frequently asked questions
Who runs Plainfield Water Dept?
Plainfield Water Dept (PWSID NH1921010) is a community water system owned by a local government. It is regulated by the NH state drinking water program.
How many people does Plainfield Water Dept serve?
Plainfield Water Dept reports serving 284 people through 118 service connections in Sullivan County, New Hampshire.
Where does Plainfield Water Dept 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 Plainfield Water Dept 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 July 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 Plainfield Water Dept'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 July 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 Plainfield Water Dept's water quality report?
As a community water system, Plainfield Water Dept 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 |
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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, “Plainfield Water Dept, PWSID NH1921010, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/plainfield-water-dept-nh1921010 (data as of October 1, 2026).