U.S. water systems

EPA Region 7 Water Systems

EPA Region 7

22 community water systems on record — 16 active, 6 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 EPA Region 7’s official records. Always confirm current status with EPA Region 7 before making decisions based on this information.

All community water systems in EPA Region 7

System name	City	Population served	Status
EMERSON, VILLAGE OF	EMERSON	820	Active
IOWA TRIBE OF KS & NE	WHITE CLOUD	192	Active
KICKAPOO TRIBAL WATERWORKS	HORTON	520	Active
MACY SANITARY DISTRICT	MACY	1,560	Inactive
OMAHA TRIBE PWS	MACY	1,800	Active
PENDER, VILLAGE OF	PENDER	1,100	Active
PONCA TRIBE OF NEBRASKA	NIOBRARA	1,200	Inactive
POTAWATOMI - PRAIRIE BAND	MAYETTA	650	Inactive
POW WOW NORTH	WINNEBAGO	25	Inactive
ROSALIE, VILLAGE OF	ROSALIE	156	Active
SAC & FOX (MESKWAKI) IN IOWA	TAMA	4,765	Active
SAC & FOX NATION OF MISSOURI	RESERVE	54	Active
SANTEE UTILITY COMMISSION	NIOBRARA	630	Active
ST AUGUSTINE INDIAN MISSION	WINNEBAGO	80	Inactive
THURSTON CO RURAL WATER	BLAIR	448	Active
THURSTON, VILLAGE OF	—	120	Active
WALTHILL, VILLAGE OF	—	780	Active
WINNEBAGO TRIBE MISSION DRIVE	WINNEBAGO	100	Inactive
WINNEBAGO TRIBE MISSION NORTH	WINNEBAGO	145	Active
WINNEBAGO TRIBE POW WOW GROUNDS	WINNEBAGO	160	Active
WINNEBAGO TRIBE- THUNDER WAY HOUSING	WINNEBAGO	160	Active
WINNEBAGO, VILLAGE OF	WINNEBAGO	787	Active