Knox County, Maine Water Systems

Knox County, Maine

21 community water systems on record — 16 active, 5 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Maine’s official records. Always confirm current status with Maine before making decisions based on this information.

Community water systems in Knox County, Maine

System name	City	Population served	Status
CRAWFORD COMMONS	UNION	50	Active
ELLIOTT APARTMENTS	OWLS HEAD	55	Active
FOUR WINDS HOMEOWNERS ASSN	SOUTH THOMASTON	43	Active
FRIENDSHIP WATER DEPARTMENT	FRIENDSHIP	85	Active
MAINE STATE PRISON-BOLDUC UNIT	THOMASTON	80	Inactive
MAINE WATER COMPANY CAMDEN & ROCKLAND	POLAND	21,315	Active
MAINE WATER COMPANY UNION DIVISION	POLAND	238	Active
MAINE WATER COMPANY WARREN DIVISION	POLAND	815	Active
MOUNTAINSIDE MOBILE HOME PARK	THOMASTON	130	Active
MOUNTAINSIDE MOBILE HP #2	WESTBROOK	40	Inactive
NORTH HAVEN WATER DEPARTMENT	NORTH HAVEN	740	Active
PORT CLYDE WATER DISTRICT	PORT CLYDE	330	Active
TENANTS HARBOR WATER DISTRICT	POLAND	378	Active
VILLAGE AT ROCKPORT #1	CAMDEN	30	Active
VILLAGE AT ROCKPORT #2	CAMDEN	30	Active
VILLAGE AT ROCKPORT #3	CAMDEN	25	Active
VILLAGE AT ROCKPORT #4	CAMDEN	43	Active
VINALHAVEN WATER DISTRICT	POLAND	1,053	Active
WASHINGTON MANOR-JSLS	WASHINGTON	54	Inactive
WOODMAN'S MOBILE HOME PARK	OWLS HEAD	30	Inactive
WOODMANS TRAILER PARK	SHELBURNE	35	Inactive