Public water system · ME0091640
ActiveWinterport Water District
At a glance
Winterport Water District (PWSID ME0091640) is an active community water system in Waldo County, Maine. It reports serving 763 people through 306 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
763
Service connections
306
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Winterport Water District compare with other water systems in Waldo County?
By EPA's size categories, Winterport Water District is a small system (501 to 3,300 people). Waldo County has 75 active public water systems, and Winterport Water District is the 4th-largest of them by population served. Its population served is about 197% above the county average of 257 people per system, and accounts for 4% of the 19,252 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 Winterport Water District is well 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 Winterport Water District?
EPA lists Winterport 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. 14 of the 75 active systems in Waldo County (19%) are also owned by a local government.
Does Winterport Water District have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2014. The violations listed here began between July 2003 and October 2014. By type: 4 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2014-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2011-11-07 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2010-08-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
| 2005-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-07-11 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
All 5 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.
Winterport Water District: frequently asked questions
Who runs Winterport Water District?
Winterport Water District (PWSID ME0091640) is a community water system owned by a local government. It is regulated by the ME state drinking water program.
How many people does Winterport Water District serve?
Winterport Water District reports serving 763 people through 306 service connections in Waldo County, Maine.
Where does Winterport 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 Winterport Water District have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2014. 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 Winterport 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. EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.
Where can I find Winterport Water District's water quality report?
As a community water system, Winterport 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 Waldo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Belfast Water District | Waldo | 5,698 | Community | Groundwater |
| Searsport Water District | Waldo | 2,763 | Community | Groundwater |
| Rsu 03 Mt View School | Waldo | 1,100 | Non-transient non-community | Groundwater |
| Fort Knox | Waldo | 592 | Transient non-community | Groundwater |
| Northport Village Corp Water Dept | Waldo | 550 | Community | Purchased groundwater |
| Bowens Pizzeria & Deli LLC | Waldo | 450 | Transient non-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, “Winterport Water District, PWSID ME0091640, Maine”, https://aquacensus.com/water-systems/maine/winterport-water-district-me0091640 (data as of October 1, 2026).