Grant County, Oregon Water Systems

Grant County, Oregon

9 community water systems on record — 8 active, 1 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 Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.

Community water systems in Grant County, Oregon

System name	City	Population served	Status
CANYON CITY WATER DEPARTMENT	CANYON CITY	666	Active
DAYVILLE, CITY OF	DAYVILLE	155	Active
JOHN DAY, CITY OF	JOHN DAY	1,617	Active
LONG CREEK, CITY OF	LONG CREEK	173	Active
MONUMENT, CITY OF	MONUMENT	115	Active
MOUNT VERNON, CITY OF	MOUNT VERNON	510	Active
PRAIRIE CITY	PRAIRIE CITY	841	Active
SENECA, CITY OF	SENECA	200	Active
USFS DALE WORK CTR/JOHN DAY RS	PENDLETON	60	Inactive