Public water system · ME0090150

Active

Berwick Water Department

At a glance

Berwick Water Department (PWSID ME0090150) is an active community water system in York County, Maine. It reports serving 2,845 people through 1,138 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, 5 are health-based, and the most recent began in October 2022.

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

Population served

2,845

Service connections

1,138

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDME0090150

System typeCommunity water system

Activity statusActive

Population served2,845

Service connections1,138

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyME state drinking water program

City servedBerwick

StateMaine

ZIP—

CountyYork County

How does Berwick Water Department compare with other water systems in York County?

By EPA's size categories, Berwick Water Department is a small system (501 to 3,300 people). York County has 188 active public water systems. Its population served is about 3.2 times the county average of 877 people per system, and accounts for 1.7% of the 164,945 people reported by systems filed under the county. Across Maine, the 1,862 active systems average 503 people each. Nationally, the average active community water system reports serving 6,703 people, so Berwick Water Department is about 58% 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. Maine has 386 active community water systems, 21% of the state's 1,862 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 61 Maine systems (3.3%) list surface water as their primary source.

Who owns and regulates Berwick Water Department?

EPA lists Berwick Water Department as owned by a local government. The ME 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 York County (14%) are also owned by a local government.

Does Berwick Water Department have drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in October 2022. The violations listed here began between January 2014 and October 2022. By type: 6 monitoring and reporting, 4 contaminant level above the legal limit, 1 required treatment not met and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Haloacetic acids (HAA5) (5 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
2022-10-04	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2022-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2022-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2022-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2019-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2019-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2018-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2014-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2014-01-01	Monitoring and reportingMonitoring, Regular · code 03	Chlordanecode 2959	No	Resolved
2014-01-01	Monitoring and reportingMonitoring, Regular · code 03	Methoxychlorcode 2015	No	Resolved
2014-01-01	Monitoring and reportingMonitoring, Regular · code 03	Toxaphenecode 2020	No	Resolved
2014-01-01	Monitoring and reportingMonitoring, Regular · code 03	Hexachlorocyclopentadienecode 2042	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.

Berwick Water Department: frequently asked questions

Who runs Berwick Water Department?

Berwick Water Department (PWSID ME0090150) is a community water system owned by a local government. It is regulated by the ME state drinking water program.

How many people does Berwick Water Department serve?

Berwick Water Department reports serving 2,845 people through 1,138 service connections in York County, Maine.

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

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in October 2022. 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 Berwick 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, 5 are health-based, and the most recent began in October 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.

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

As a community water system, Berwick 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 York County

Water system	County	Population served	Type	Source
Maine Water Company Biddeford Saco Div	York	42,508	Community	Surface water
Kennebunk, Kennebunkport & Wells Wd	York	35,663	Community	Surface water
Kittery Water District	York	14,478	Community	Surface water
Sanford Water District	York	14,328	Community	Groundwater
York Water District	York	13,675	Community	Surface water
South Berwick Water District	York	3,722	Community	Groundwater

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, “Berwick Water Department, PWSID ME0090150, Maine”, https://aquacensus.com/water-systems/maine/berwick-water-department-me0090150 (data as of October 1, 2026).