Tapcensus

Kansas

Washington County drinking water quality

12 active public water systems serve 5,258 people in Washington County. 4 are compliant, 8 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.

Active systems 12 12 community systems
People served 5,258 by public water systems
Systems with violations 8 67% of active systems, past 3 years
Serious violators 0 0 systems carry a health flag

Community water systems

12 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Washington CO Rwd 1
Hanover 		1,093 1 1
Washington, City of
Washington 		1,065 0 0
Hanover, City of
Hanover 		689 3 1
Washington CO Rwd 2
Washington 		673 1 1
Clifton, City of
Clifton 		455 0 0
Linn, City of
Linn 		382 2 0
Greenleaf, City of
Greenleaf 		347 1 0
Barnes, City of
Barnes 		161 2 0
Palmer, City of
Palmer 		125 0 0
Morrowville, City of
Morrowville 		115 0 0
Haddam, City of
Haddam 		109 5 1
Mahaska, City of
Mahaska 		44 4 2
Inactive systems (27, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Kansas records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.