Public water system · RI1858419

Active

Jamestown Water Department

At a glance

Jamestown Water Department (PWSID RI1858419) is an active community water system in Newport County, Rhode Island. It reports serving 3,348 people through 1,573 service connections. Its primary water source is surface water, 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 June 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

3,348

Service connections

1,573

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDRI1858419

System typeCommunity water system

Activity statusActive

Population served3,348

Service connections1,573

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyRI state drinking water program

City servedJamestown

StateRhode Island

ZIP—

CountyNewport County

How does Jamestown Water Department compare with other water systems in Newport County?

By EPA's size categories, Jamestown Water Department is a medium system (3,301 to 10,000 people). Newport County has 47 active public water systems, and Jamestown Water Department is the 5th-largest of them by population served. Its population served is about 66% above the county average of 2,018 people per system, and accounts for 3.5% of the 94,859 people reported by systems filed under the county. Across Rhode Island, the 465 active systems average 2,508 people each. Nationally, the average active community water system reports serving 6,703 people, so Jamestown Water Department 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. Rhode Island has 89 active community water systems, 19% of the state's 465 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 8 Rhode Island systems (1.7%) list surface water as their primary source.

Who owns and regulates Jamestown Water Department?

EPA lists Jamestown Water Department as owned by a local government. The RI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 7 of the 47 active systems in Newport County (15%) are also owned by a local government.

Does Jamestown Water Department have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in June 2025. The violations listed here began between May 2016 and June 2025. By type: 10 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Chlorite (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
2025-06-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Carbon, totalcode 2920	No	Resolved
2024-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chloritecode 1009	No	Resolved
2024-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2024-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2024-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chloritecode 1009	No	Resolved
2017-10-01	Monitoring and reportingMonitoring, Source Water (LT2) · code 32	E. colicode 3014	No	Resolved
2017-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2017-03-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2017-03-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2017-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2017-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2016-05-04	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.

Jamestown Water Department: frequently asked questions

Who runs Jamestown Water Department?

Jamestown Water Department (PWSID RI1858419) is a community water system owned by a local government. It is regulated by the RI state drinking water program.

How many people does Jamestown Water Department serve?

Jamestown Water Department reports serving 3,348 people through 1,573 service connections in Newport County, Rhode Island.

Where does Jamestown Water Department get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Jamestown Water Department 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 June 2025. 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 Jamestown Water Department'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 June 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the RI state drinking water program.

Where can I find Jamestown Water Department's water quality report?

As a community water system, Jamestown Water Department 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 Newport County

Water system	County	Population served	Type	Source
Newport-City of	Newport	42,155	Community	Surface water
Portsmouth Water & Fire District	Newport	17,090	Community	Purchased surface water
North Tiverton Fire District	Newport	8,969	Community	Purchased surface water
Naval Station, Newport	Newport	7,870	Community	Purchased surface water
Tiverton Water Authority, Town Hall	Newport	3,213	Community	Purchased surface water
Stone Bridge Fire District	Newport	2,793	Community	Surface water

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, “Jamestown Water Department, PWSID RI1858419, Rhode Island”, https://aquacensus.com/water-systems/rhode-island/jamestown-water-department-ri1858419 (data as of October 1, 2026).