Tapcensus

Illinois

Hamilton County drinking water quality

4 active public water systems serve 7,864 people in Hamilton County. 2 are compliant, 2 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 1 carries a health flag.

Active systems 4 4 community systems
People served 7,864 by public water systems
Systems with violations 2 50% of active systems, past 3 years
Serious violators 1 1 systems carry a health flag

Needs attention

McLeansboro IL0650200 · Mcleansboro · Community water system · Serves 2,812 5 rules violated in the past three years. Unresolved: Consumer Confidence Rule (CCR), Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), and Public Notification Rule.

Community water systems

4 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Hamilton County Water District
 3,958 0 0
McLeansboro
Mcleansboro 		2,812 5 4
Dahlgren
Dahlgren 		859 0 0
Broughton Water District
Broughton 		235 4 0
Inactive systems (51, 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 Illinois 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.