Public water system · ME0090300
ActiveMaine Water Company Camden & Rockland
At a glance
Maine Water Company Camden & Rockland (PWSID ME0090300) is an active community water system in Knox County, Maine. It reports serving 21,315 people through 8,526 service connections. Its primary water source is surface water, and EPA lists it as privately owned. EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in January 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
21,315
Service connections
8,526
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Maine Water Company Camden & Rockland compare with other water systems in Knox County?
By EPA's size categories, Maine Water Company Camden & Rockland is a large system (10,001 to 100,000 people). Knox County has 46 active public water systems, and Maine Water Company Camden & Rockland is the largest of them by population served. Its population served is about 32 times the county average of 666 people per system, and accounts for 70% of the 30,632 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 Maine Water Company Camden & Rockland is about 3.2 times 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 61 Maine systems (3.3%) list surface water as their primary source.
Who owns and regulates Maine Water Company Camden & Rockland?
EPA lists Maine Water Company Camden & Rockland 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. 35 of the 46 active systems in Knox County (76%) are also privately owned.
Does Maine Water Company Camden & Rockland have drinking water violations?
EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in January 2022. The violations listed here began between January 2003 and January 2022. By type: 3 contaminant level above the legal limit, 2 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Haloacetic acids (HAA5) (2 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2022-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2010-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2003-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
All 6 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.
Maine Water Company Camden & Rockland: frequently asked questions
Who runs Maine Water Company Camden & Rockland?
Maine Water Company Camden & Rockland (PWSID ME0090300) is a community water system privately owned. It is regulated by the ME state drinking water program.
How many people does Maine Water Company Camden & Rockland serve?
Maine Water Company Camden & Rockland reports serving 21,315 people through 8,526 service connections in Knox County, Maine.
Where does Maine Water Company Camden & Rockland get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Maine Water Company Camden & Rockland have any drinking water violations?
EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in January 2022. 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 Maine Water Company Camden & Rockland'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 6 violations for this system; 4 are health-based, and the most recent began in January 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.
Where can I find Maine Water Company Camden & Rockland's water quality report?
As a community water system, Maine Water Company Camden & Rockland 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 Knox County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mdoc State Park-Camden Hills | Knox | 1,573 | Transient non-community | Groundwater |
| Vinalhaven Water District | Knox | 1,053 | Community | Surface water |
| Maine Water Company Warren Division | Knox | 815 | Community | Groundwater |
| North Haven Water Department | Knox | 740 | Community | Surface water |
| Tenants Harbor Water District | Knox | 378 | Community | Groundwater |
| Port Clyde Water District | Knox | 330 | 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, “Maine Water Company Camden & Rockland, PWSID ME0090300, Maine”, https://aquacensus.com/water-systems/maine/maine-water-company-camden-rockland-me0090300 (data as of October 1, 2026).