Hamlin County, South Dakota Water Systems

Hamlin County, South Dakota

11 community water systems on record — 7 active, 4 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 South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.

Community water systems in Hamlin County, South Dakota

System name	City	Population served	Status
BRYANT	BRYANT	471	Active
CASTLEWOOD	CASTLEWOOD	698	Active
CLAREMONT COLONY	CASTLEWOOD	40	Inactive
CLARK RURAL WATER SYSTEM	CLARK	2,325	Active
ESTELLINE	ESTELLINE	749	Active
HAYTI	HAYTI	393	Active
HAZEL	WATERTOWN	91	Inactive
LAKE NORDEN	LAKE NORDEN	554	Active
MAYFIELD COLONY	VIENNA	93	Inactive
POINSETT COLONY	ESTELLINE	40	Inactive
SIOUX RURAL WATER SYSTEM	WATERTOWN	4,280	Active