Marshall County, South Dakota Water Systems

Marshall County, South Dakota

13 community water systems on record — 9 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 Marshall County, South Dakota

System name	City	Population served	Status
AMHERST WATER COMPANY	BRITTON	40	Active
BRITTON	BRITTON	1,215	Active
BROWN-DAY-MARSHALL RWS	BRITTON	5,673	Active
EDEN	EDEN	94	Active
KIDDER WATER ASSOCIATION	BRITTON	100	Inactive
LAKE CITY	BRITTON	45	Active
LANGFORD	LANGFORD	283	Active
NEWPORT COLONY	CLAREMONT	130	Inactive
SUNSET COLONY	BRITTON	140	Active
VEBLEN	VEBLEN	317	Active
WEB WATER DEVELOPMENT ASSOCIATION	ABERDEEN	20,750	Active
WESTMILLER WATER ASSOCIATION	BRITTON	99	Inactive
WESTWOOD COLONY	BRITTON	110	Inactive