Public water system · ME0091650
ActiveWinthrop Utilities District
At a glance
Winthrop Utilities District (PWSID ME0091650) is an active community water system in Kennebec County, Maine. It reports serving 2,750 people through 1,100 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, 6 are health-based, and the most recent began in October 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,750
Service connections
1,100
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Winthrop Utilities District compare with other water systems in Kennebec County?
By EPA's size categories, Winthrop Utilities District is a small system (501 to 3,300 people). Kennebec County has 169 active public water systems, and Winthrop Utilities District is the 5th-largest of them by population served. Its population served is about 5.8 times the county average of 470 people per system, and accounts for 3.5% of the 79,468 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 Winthrop Utilities District is about 59% 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 Winthrop Utilities District?
EPA lists Winthrop Utilities 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. 25 of the 169 active systems in Kennebec County (15%) are also owned by a local government.
Does Winthrop Utilities 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 October 2020. The violations listed here began between October 2004 and October 2020. By type: 6 monitoring and reporting and 6 contaminant level above the legal limit. The contaminant or rule involved most often is Haloacetic acids (HAA5) (9 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 |
|---|---|---|---|---|
| 2020-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2019-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2019-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2006-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2005-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2005-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2005-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2005-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | 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.
Winthrop Utilities District: frequently asked questions
Who runs Winthrop Utilities District?
Winthrop Utilities District (PWSID ME0091650) is a community water system owned by a local government. It is regulated by the ME state drinking water program.
How many people does Winthrop Utilities District serve?
Winthrop Utilities District reports serving 2,750 people through 1,100 service connections in Kennebec County, Maine.
Where does Winthrop Utilities District 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 Winthrop Utilities 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 October 2020. 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 Winthrop Utilities 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 October 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.
Where can I find Winthrop Utilities District's water quality report?
As a community water system, Winthrop Utilities 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 Kennebec County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kennebec Water District | Kennebec | 22,060 | Community | Surface water |
| Greater Augusta Utility District | Kennebec | 13,750 | Community | Groundwater |
| Gardiner Water District | Kennebec | 9,000 | Community | Groundwater |
| Maine Water Company Oakland Division | Kennebec | 2,873 | Community | Purchased surface water |
| Hallowell Water District | Kennebec | 2,300 | Community | Groundwater |
| Clinton Water District | Kennebec | 1,013 | 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, “Winthrop Utilities District, PWSID ME0091650, Maine”, https://aquacensus.com/water-systems/maine/winthrop-utilities-district-me0091650 (data as of October 1, 2026).