Tapcensus

Missouri

Henry County drinking water quality

13 active public water systems serve 23,361 people in Henry County. 3 are compliant, 10 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 0 carry a health flag.

Active systems 13 12 community systems
People served 23K by public water systems
Systems with violations 10 77% of active systems, past 3 years
Serious violators 1 0 systems carry a health flag

Needs attention

Blairstown PWS MO1010076 · Blairstown · Community water system · Serves 123 4 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), TTHM (Total Trihalomethanes), and Total Haloacetic Acids (HAA5).

Community water systems

12 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Henry County Water Company
Clinton
11,373 0 0
Henry County Pwsd 3
Calhoun, Tightwad
2,993 0 0
Windsor PWS
Windsor
2,900 1 0
Harry S Truman Pwsd 2
Clinton
2,700 4 0
Henry County Pwsd 4
Blairstown, Urich
1,140 0 0
Urich PWS
Urich
505 1 1
Deepwater PWS
Deepwater
433 2 0
Montrose PWS
Montrose
384 1 0
Calhoun PWS
Calhoun
324 1 0
Henry County Pwsd 1
258 3 0
Blairstown PWS
Blairstown
123 4 1
Oakwood Water Assn
28 1 0
Non-community systems (1: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Hickory Hollow Resort
200 2 0
Inactive systems (24, 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 Missouri 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.