Public water system · ME0098268
ActiveIsland Medical Center
At a glance
Island Medical Center (PWSID ME0098268) is an active non-transient non-community water system in Hancock County, Maine. It reports serving 90 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
90
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Island Medical Center compare with other water systems in Hancock County?
By EPA's size categories, Island Medical Center is a very small system (500 people or fewer). Hancock County has 203 active public water systems. Its population served is about 61% below the county average of 232 people per system, and accounts for 0.2% of the 47,019 people reported by systems filed under the county. Across Maine, the 1,862 active systems average 503 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Island Medical Center is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Maine has 385 active non-transient non-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 Medical Center?
EPA lists Island Medical Center as privately owned. 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. 157 of the 203 active systems in Hancock County (77%) are also privately owned.
Does Island Medical Center have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in January 2026. The violations listed here began between July 2005 and January 2026. By type: 6 monitoring and reporting, 4 contaminant level above the legal limit, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 10 as resolved and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-31 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-09-29 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2024-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-02-02 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Unaddressed |
| 2013-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | 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.
Island Medical Center: frequently asked questions
Who runs Island Medical Center?
Island Medical Center (PWSID ME0098268) is a non-transient non-community water system privately owned. It is regulated by the ME state drinking water program.
How many people does Island Medical Center serve?
Island Medical Center reports serving 90 people through 1 service connection in Hancock County, Maine.
Where does Island Medical Center 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 Medical Center have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in January 2026. 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 Medical Center'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, 5 are health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the ME state drinking water program.
Where can I find Island Medical Center's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Island Medical Center is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Hancock County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Town of Bar Harbor- Water Division | Hancock | 4,443 | Community | Surface water |
| Ellsworth Water Department | Hancock | 3,910 | Community | Surface water |
| Southwest Harbor Water & Sewer District | Hancock | 2,480 | Community | Surface water |
| Maine Water Company Bucksport Division | Hancock | 1,700 | Community | Surface water |
| Mount Desert Water Dist North | Hancock | 1,623 | Community | Surface water |
| Castine Water Department | Hancock | 983 | Community | Groundwater under influence of 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 Medical Center, PWSID ME0098268, Maine”, https://aquacensus.com/water-systems/maine/island-medical-center-me0098268 (data as of October 1, 2026).