Public water system · ME0090920
ActiveMadawaska Water District
At a glance
Madawaska Water District (PWSID ME0090920) is an active community water system in Aroostook County, Maine. It reports serving 2,738 people through 1,095 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in May 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,738
Service connections
1,095
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Madawaska Water District compare with other water systems in Aroostook County?
By EPA's size categories, Madawaska Water District is a small system (501 to 3,300 people). Aroostook County has 123 active public water systems, and Madawaska Water District is the 4th-largest of them by population served. Its population served is about 8.3 times the county average of 329 people per system, and accounts for 6.8% of the 40,518 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 Madawaska Water 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. 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 Madawaska Water District?
EPA lists Madawaska 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. 21 of the 123 active systems in Aroostook County (17%) are also owned by a local government.
Does Madawaska Water District have drinking water violations?
EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in May 2019. The violations listed here began between January 1995 and May 2019. By type: 5 required treatment not met, 2 contaminant level above the legal limit, 2 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Surface Water Treatment Rule (5 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2019-05-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2008-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1999-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1998-09-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1998-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1998-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1998-05-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 10 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.
Madawaska Water District: frequently asked questions
Who runs Madawaska Water District?
Madawaska Water District (PWSID ME0090920) is a community water system owned by a local government. It is regulated by the ME state drinking water program.
How many people does Madawaska Water District serve?
Madawaska Water District reports serving 2,738 people through 1,095 service connections in Aroostook County, Maine.
Where does Madawaska 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 Madawaska Water District have any drinking water violations?
EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in May 2019. 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 Madawaska 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 10 violations for this system; 7 are health-based, and the most recent began in May 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.
Where can I find Madawaska Water District's water quality report?
As a community water system, Madawaska 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 Aroostook County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Presque Isle Utilities District | Aroostook | 6,128 | Community | Groundwater under influence of surface water |
| Houlton Water Company | Aroostook | 4,735 | Community | Groundwater |
| Caribou Utilities District | Aroostook | 3,943 | Community | Groundwater |
| Van Buren Water District | Aroostook | 2,190 | Community | Groundwater |
| Fort Fairfield Utilities District | Aroostook | 2,025 | Community | Surface water |
| Fort Kent W & W Department | Aroostook | 1,578 | Community | Groundwater |
Related pages
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, “Madawaska Water District, PWSID ME0090920, Maine”, https://aquacensus.com/water-systems/maine/madawaska-water-district-me0090920 (data as of October 1, 2026).