Public water system · ME0092539
ActiveSafe Harbor Great Island
At a glance
Safe Harbor Great Island (PWSID ME0092539) is an active non-transient non-community water system in Cumberland County, Maine. It reports serving 38 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, none is health-based, and the most recent began in December 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
38
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Safe Harbor Great Island compare with other water systems in Cumberland County?
By EPA's size categories, Safe Harbor Great Island is a very small system (500 people or fewer). Cumberland County has 225 active public water systems. Its population served is well below the county average of 967 people per system, and accounts for less than 0.1% of the 217,594 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 Safe Harbor Great Island 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 Safe Harbor Great Island?
EPA lists Safe Harbor Great Island 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. 197 of the 225 active systems in Cumberland County (88%) are also privately owned.
Does Safe Harbor Great Island have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2021. The violations listed here began between July 2021 and December 2021. By type: 10 monitoring and reporting, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (2 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 |
|---|---|---|---|---|
| 2021-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-10-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2021-07-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | 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.
Safe Harbor Great Island: frequently asked questions
Who runs Safe Harbor Great Island?
Safe Harbor Great Island (PWSID ME0092539) is a non-transient non-community water system privately owned. It is regulated by the ME state drinking water program.
How many people does Safe Harbor Great Island serve?
Safe Harbor Great Island reports serving 38 people through 1 service connection in Cumberland County, Maine.
Where does Safe Harbor Great Island 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 Safe Harbor Great Island have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2021. 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 Safe Harbor Great Island'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, none is health-based, and the most recent began in December 2021. For current results, consult EPA ECHO, or the ME state drinking water program.
Where can I find Safe Harbor Great Island's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Safe Harbor Great Island 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 Cumberland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Portland Water District-Greater | Cumberland | 135,068 | Community | Surface water |
| Brunswick/Topsham Water District | Cumberland | 18,863 | Community | Groundwater |
| Yarmouth Water District | Cumberland | 8,000 | Community | Groundwater |
| Bridgton Water District | Cumberland | 3,660 | Community | Groundwater |
| Maine Water Company Freeport Division | Cumberland | 2,700 | Community | Groundwater |
| Gray Water District | Cumberland | 2,468 | 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, “Safe Harbor Great Island, PWSID ME0092539, Maine”, https://aquacensus.com/water-systems/maine/safe-harbor-great-island-me0092539 (data as of October 1, 2026).