Public water system · RI1858421
ActiveKingston Water District
At a glance
Kingston Water District (PWSID RI1858421) is an active community water system in Washington County, Rhode Island. It reports serving 3,968 people through 1,092 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, none is health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,968
Service connections
1,092
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Kingston Water District compare with other water systems in Washington County?
By EPA's size categories, Kingston Water District is a medium system (3,301 to 10,000 people). Washington County has 188 active public water systems. Its population served is about 3.9 times the county average of 1,022 people per system, and accounts for 2.1% of the 192,066 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 Kingston Water District is about 41% 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. Rhode Island has 89 active community water systems, 19% of the state's 465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 428 Rhode Island systems (92%) list groundwater as their primary source.
Who owns and regulates Kingston Water District?
EPA lists Kingston Water District 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. 26 of the 188 active systems in Washington County (14%) are also owned by a local government.
Does Kingston Water District have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2023. The violations listed here began between October 2023 and October 2023. By type: 12 monitoring and reporting. The contaminants or rules involved are Atrazine, Heptachlor, Simazine and Aldicarb. 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 |
|---|---|---|---|---|
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Atrazinecode 2050 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlorcode 2065 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Simazinecode 2037 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Aldicarbcode 2047 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dinosebcode 2041 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dalaponcode 2031 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Methoxychlorcode 2015 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Aldicarb sulfonecode 2044 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Endrincode 2005 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Picloramcode 2040 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,4,5-TP (Silvex)code 2110 | 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.
Kingston Water District: frequently asked questions
Who runs Kingston Water District?
Kingston Water District (PWSID RI1858421) is a community water system owned by a local government. It is regulated by the RI state drinking water program.
How many people does Kingston Water District serve?
Kingston Water District reports serving 3,968 people through 1,092 service connections in Washington County, Rhode Island.
Where does Kingston Water District 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 Kingston Water District 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 October 2023. 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 Kingston Water District'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 October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the RI state drinking water program.
Where can I find Kingston Water District's water quality report?
As a community water system, Kingston Water District 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 Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Westerly Water Department | Washington | 35,298 | Community | Groundwater |
| North Kingstown Town of | Washington | 27,732 | Community | Groundwater |
| Veolia Water Wakefield Rhode Island Inc. | Washington | 22,347 | Community | Groundwater |
| University of Rhode Island | Washington | 19,354 | Community | Groundwater |
| Quonset Business Park | Washington | 13,000 | Non-transient non-community | Groundwater |
| Block Island Water Company | Washington | 9,999 | 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, “Kingston Water District, PWSID RI1858421, Rhode Island”, https://aquacensus.com/water-systems/rhode-island/kingston-water-district-ri1858421 (data as of October 1, 2026).