Public water system · MA4145000

Active

Kingston Water Department

At a glance

Kingston Water Department (PWSID MA4145000) is an active community water system in Plymouth County, Massachusetts. It reports serving 14,715 people through 5,104 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, 2 are health-based, and the most recent began in January 2023.

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

Population served

14,715

Service connections

5,104

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDMA4145000

System typeCommunity water system

Activity statusActive

Population served14,715

Service connections5,104

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyMA state drinking water program

City servedKingston

StateMassachusetts

ZIP02364

CountyPlymouth County

How does Kingston Water Department compare with other water systems in Plymouth County?

By EPA's size categories, Kingston Water Department is a large system (10,001 to 100,000 people). Plymouth County has 129 active public water systems. Its population served is about 3.3 times the county average of 4,447 people per system, and accounts for 2.6% of the 573,676 people reported by systems filed under the county. Across Massachusetts, the 1,636 active systems average 6,275 people each. Nationally, the average active community water system reports serving 6,703 people, so Kingston Water Department is about twice 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. Massachusetts has 531 active community water systems, 32% of the state's 1,636 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,354 Massachusetts systems (83%) list groundwater as their primary source.

Who owns and regulates Kingston Water Department?

EPA lists Kingston Water Department as owned by a local government. The MA 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 129 active systems in Plymouth County (29%) are also owned by a local government.

Does Kingston Water Department have drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2023. The violations listed here began between April 2006 and January 2023. By type: 8 monitoring and reporting, 1 public notice, recordkeeping or other, 1 reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 6 as resolved and 6 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.

Began	Violation	Contaminant or rule	Health-based	Status
2023-01-14	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2022-12-16	ReportingNotify Level 1/Level 2 Treatment Technique Violation, Correct Action (RTCR) · code 4F	Revised Total Coliform Rulecode 8000	No	Resolved
2022-12-15	Required treatment not metTreatment Technique, Level 2 Assessment (RTCR) · code 2B	Revised Total Coliform Rulecode 8000	Yes	Resolved
2022-07-08	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	Enterococcicode 3002	No	Resolved
2017-02-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Archived
2017-02-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Archived
2011-06-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2006-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2006-04-01	Monitoring and reportingMonitoring, Regular · code 03	Glyphosatecode 2034	No	Archived
2006-04-01	Monitoring and reportingMonitoring, Regular · code 03	Benzenecode 2990	No	Archived
2006-04-01	Monitoring and reportingMonitoring, Regular · code 03	Di(2-ethylhexyl) adipatecode 2035	No	Archived
2006-04-01	Monitoring and reportingMonitoring, Regular · code 03	Benzo(a)pyrenecode 2306	No	Archived

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 Department: frequently asked questions

Who runs Kingston Water Department?

Kingston Water Department (PWSID MA4145000) is a community water system owned by a local government. It is regulated by the MA state drinking water program.

How many people does Kingston Water Department serve?

Kingston Water Department reports serving 14,715 people through 5,104 service connections in Plymouth County, Massachusetts.

Where does Kingston Water Department 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 Department have any drinking water violations?

Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 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 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, 2 are health-based, and the most recent began in January 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the MA state drinking water program.

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

As a community water system, Kingston 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 Plymouth County

Water system	County	Population served	Type	Source
Brockton Water Department	Plymouth	105,788	Community	Surface water
Plymouth Water Department	Plymouth	47,100	Community	Groundwater
Weir River Water System	Plymouth	45,339	Community	Surface water
Marshfield Water Department	Plymouth	34,000	Community	Groundwater
Abington/Rockland Joint Wtr. Works	Plymouth	33,387	Community	Surface water
Mattapoisett River Valley W.D.	Plymouth	29,600	Community	Purchased 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, “Kingston Water Department, PWSID MA4145000, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/kingston-water-department-ma4145000 (data as of October 1, 2026).