Washington County, Iowa Water Systems

Washington County, Iowa

19 community water systems on record — 14 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 Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

Community water systems in Washington County, Iowa

System name	City	Population served	Status
AINSWORTH WATER WORKS	AINSWORTH	511	Active
BRIGHTON MUNICIPAL WATER SUPPLY	BRIGHTON	600	Active
CITY OF KALONA - SOUTHTOWN	KALONA	60	Active
CRAWFORDSVILLE WATER SUPPLY	WASHINGTON	277	Active
HIDDEN VALLEY MOBILE HOME PARK	WASHINGTON	46	Inactive
KALONA WATER DEPT	KALONA	2,630	Active
LAKE TRIO HOMEOWNERS ASSOCIATION	WASHINGTON	57	Inactive
LINN HOLLOW MHP LLC	MUSCATINE	68	Active
RIVERSIDE WATER SUPPLY	RIVERSIDE	1,060	Active
ST ANNES VIEW	RIVERSIDE	30	Inactive
STONEY CREEK ESTATES	WEBSTER	132	Inactive
SUNSET HILLS ESTATES PART 2	KALONA	45	Active
TIMBERLINE ESTATES	TIPTON	95	Active
WALDSCHMIDT SUBDIVISION	IOWA CITY	45	Active
WAPELLO RURAL WATER ASSOC.	OTTUMWA	17,263	Active
WASHINGTON COUNTY HOME COMPLEX	WASHINGTON	80	Inactive
WASHINGTON WATER DEPARTMENT	WASHINGTON	7,362	Active
WELLMAN MUNICIPAL WATERWORKS	WELLMAN	1,524	Active
WEST CHESTER MUNI WTR SUPPLY	WEST CHESTER	144	Active