Public water system · ME0090380
ActiveCornish Water District
At a glance
Cornish Water District (PWSID ME0090380) is an active community water system in York County, Maine. It reports serving 758 people through 303 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
758
Service connections
303
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cornish Water District compare with other water systems in York County?
By EPA's size categories, Cornish Water District is a small system (501 to 3,300 people). York County has 188 active public water systems. Its population served is about 14% below the county average of 877 people per system, and accounts for 0.5% of the 164,945 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 Cornish 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 Cornish Water District?
EPA lists Cornish 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. 26 of the 188 active systems in York County (14%) are also owned by a local government.
Does Cornish Water District have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2014. The violations listed here began between October 2004 and January 2014. By type: 2 monitoring and reporting. The contaminants or rules involved are Combined Radium (-226 and -228) and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2004-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 2 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.
Cornish Water District: frequently asked questions
Who runs Cornish Water District?
Cornish Water District (PWSID ME0090380) is a community water system owned by a local government. It is regulated by the ME state drinking water program.
How many people does Cornish Water District serve?
Cornish Water District reports serving 758 people through 303 service connections in York County, Maine.
Where does Cornish 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 Cornish Water District have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 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 Cornish 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 2 violations for this system; none is health-based, and the most recent began in January 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 Cornish Water District's water quality report?
As a community water system, Cornish 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 York County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Maine Water Company Biddeford Saco Div | York | 42,508 | Community | Surface water |
| Kennebunk, Kennebunkport & Wells Wd | York | 35,663 | Community | Surface water |
| Kittery Water District | York | 14,478 | Community | Surface water |
| Sanford Water District | York | 14,328 | Community | Groundwater |
| York Water District | York | 13,675 | Community | Surface water |
| South Berwick Water District | York | 3,722 | 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, “Cornish Water District, PWSID ME0090380, Maine”, https://aquacensus.com/water-systems/maine/cornish-water-district-me0090380 (data as of October 1, 2026).