Public water system · NH0301010
ActiveBristol Water Works
At a glance
Bristol Water Works (PWSID NH0301010) is an active community water system in Grafton County, New Hampshire. It reports serving 3,575 people through 1,430 service connections. 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; 4 are health-based, and the most recent began in January 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,575
Service connections
1,430
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Bristol Water Works compare with other water systems in Grafton County?
By EPA's size categories, Bristol Water Works is a medium system (3,301 to 10,000 people). Grafton County has 270 active public water systems, and Bristol Water Works is the 5th-largest of them by population served. Its population served is about 9.1 times the county average of 394 people per system, and accounts for 3.4% of the 106,236 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 Bristol Water Works is about half of 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 Bristol Water Works?
EPA lists Bristol Water Works 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 270 active systems in Grafton County (14%) are also owned by a local government.
Does Bristol Water Works have drinking water violations?
EPA's records list 5 violations for this system; 4 are health-based, and the most recent began in January 2011. The violations listed here began between July 2004 and January 2011. By type: 4 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2011-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2009-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
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.
Bristol Water Works: frequently asked questions
Who runs Bristol Water Works?
Bristol Water Works (PWSID NH0301010) is a community water system owned by a local government. It is regulated by the NH state drinking water program.
How many people does Bristol Water Works serve?
Bristol Water Works reports serving 3,575 people through 1,430 service connections in Grafton County, New Hampshire.
Where does Bristol Water Works 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 Bristol Water Works have any drinking water violations?
EPA's records list 5 violations for this system; 4 are health-based, and the most recent began in January 2011. 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 Bristol Water Works' 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; 4 are health-based, and the most recent began in January 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.
Where can I find Bristol Water Works' water quality report?
As a community water system, Bristol Water Works 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 Grafton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lebanon Water Dept | Grafton | 13,600 | Community | Surface water |
| Hanover Water Dept | Grafton | 9,600 | Community | Surface water |
| Plymouth Vlg Water and Sewer | Grafton | 6,700 | Community | Groundwater |
| Littleton Water and Light | Grafton | 6,500 | Community | Surface water |
| Lincoln Water Works | Grafton | 3,300 | Community | Surface water |
| Waterville Valley Water Dist | Grafton | 3,150 | 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, “Bristol Water Works, PWSID NH0301010, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/bristol-water-works-nh0301010 (data as of October 1, 2026).