Public water system · ME0090720
ActiveIsland Falls Water Dept
At a glance
Island Falls Water Dept (PWSID ME0090720) is an active community water system in Aroostook County, Maine. It reports serving 475 people through 190 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, 2 are health-based, and the most recent began in September 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
475
Service connections
190
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Island Falls Water Dept compare with other water systems in Aroostook County?
By EPA's size categories, Island Falls Water Dept is a very small system (500 people or fewer). Aroostook County has 123 active public water systems. Its population served is about 44% above the county average of 329 people per system, and accounts for 1.2% 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 Island Falls Water Dept 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 Island Falls Water Dept?
EPA lists Island Falls Water Dept 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 Island Falls Water Dept have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in September 2025. The violations listed here began between January 2015 and September 2025. By type: 10 monitoring and reporting and 2 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 10 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-09-29 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-04-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2024-12-02 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2021-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlorcode 2065 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Hexachlorocyclopentadienecode 2042 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Endrincode 2005 | 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.
Island Falls Water Dept: frequently asked questions
Who runs Island Falls Water Dept?
Island Falls Water Dept (PWSID ME0090720) is a community water system owned by a local government. It is regulated by the ME state drinking water program.
How many people does Island Falls Water Dept serve?
Island Falls Water Dept reports serving 475 people through 190 service connections in Aroostook County, Maine.
Where does Island Falls Water Dept 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 Island Falls Water Dept have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in September 2025. 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 Island Falls Water Dept'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, 2 are health-based, and the most recent began in September 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.
Where can I find Island Falls Water Dept's water quality report?
As a community water system, Island Falls Water Dept 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 |
| Madawaska Water District | Aroostook | 2,738 | Community | Groundwater |
| Van Buren Water District | Aroostook | 2,190 | Community | Groundwater |
| Fort Fairfield Utilities District | Aroostook | 2,025 | Community | Surface water |
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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, “Island Falls Water Dept, PWSID ME0090720, Maine”, https://aquacensus.com/water-systems/maine/island-falls-water-dept-me0090720 (data as of October 1, 2026).