Public water system · ME0091470
ActiveSouth Berwick Water District
At a glance
South Berwick Water District (PWSID ME0091470) is an active community water system in York County, Maine. It reports serving 3,722 people through 1,489 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, 6 are health-based, and the most recent began in April 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,722
Service connections
1,489
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does South Berwick Water District compare with other water systems in York County?
By EPA's size categories, South Berwick Water District is a medium system (3,301 to 10,000 people). York County has 188 active public water systems, and South Berwick Water District is the 6th-largest of them by population served. Its population served is about 4.2 times the county average of 877 people per system, and accounts for 2.3% 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 South Berwick Water District is about 44% 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,780 Maine systems (96%) list groundwater as their primary source.
Who owns and regulates South Berwick Water District?
EPA lists South Berwick Water District 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 South Berwick Water District have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in April 2018. The violations listed here began between January 2002 and April 2018. By type: 6 contaminant level above the legal limit, 4 public notice, recordkeeping or other and 2 monitoring and reporting. The contaminant or rule involved most often is Arsenic (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 |
|---|---|---|---|---|
| 2018-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2017-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2017-02-06 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2017-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2016-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2016-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2016-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2006-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2005-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | 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.
South Berwick Water District: frequently asked questions
Who runs South Berwick Water District?
South Berwick Water District (PWSID ME0091470) is a community water system owned by a local government. It is regulated by the ME state drinking water program.
How many people does South Berwick Water District serve?
South Berwick Water District reports serving 3,722 people through 1,489 service connections in York County, Maine.
Where does South Berwick 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 South Berwick Water District have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in April 2018. 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 South Berwick 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, 6 are health-based, and the most recent began in April 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.
Where can I find South Berwick Water District's water quality report?
As a community water system, South Berwick 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 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 |
| Lake Arrowhead Community Inc. | York | 3,500 | 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, “South Berwick Water District, PWSID ME0091470, Maine”, https://aquacensus.com/water-systems/maine/south-berwick-water-district-me0091470 (data as of October 1, 2026).