Mchenry

EPA’s September 2026 export lists Mchenry (PWSID IL1110600) as No current violation flagged, serving a reported 22,335 people from a ground water source, with 0 rules in current violation.

Source: EPA SDWIS system-search export · Snapshot 13 Sep 2026 · Federal compliance fields

CURRENT EXPORTNo current violation flaggedNo current violation is flagged in this EPA export. This is not a household water test.

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01 / CURRENT FLAGS

EPA compliance flags for Mchenry

Mchenry is listed as no current violation flagged in the current export; the five federal flag categories remain separate below.

NOT FLAGGED
Health-based violationCurrent HEALTH_FLAG in the EPA export.
NOT FLAGGED
Monitoring and reportingCurrent MR_FLAG in the EPA export.
NOT FLAGGED
Public notificationCurrent PN_FLAG in the EPA export.
NOT FLAGGED
Other violationCurrent OTHER_FLAG in the EPA export.
NOT FLAGGED
Serious violatorCurrent serious-violator status in the EPA export.

Important limit

This page is not a household water test. A clear federal flag does not prove every home has safe water, and a flag is not a measurement at your faucet. Plumbing, service lines, local sampling, private wells, and newer events may not be reflected here.

02 / VIOLATION RECORD

Quarters with violations6rolling history field

Quarters with SNC0significant noncompliance

Rules in current violation0EPA export count

Rules in 3-year window2EPA export count

Current rule entries for Mchenry

EPA supplied 1 current contaminant, rule, or violation-category entries for Mchenry in the exported fields used here.

Monitoring and Reporting

Three-year entries for Mchenry

EPA supplied 21 contaminant or rule entries for Mchenry in the three-year history field.

2378=1,2,4-Trichlorobenzene
2380=cis-1,2-Dichloroethylene
2955=Xylenes, Total
2964=DICHLOROMETHANE
2968=o-Dichlorobenzene
2969=p-Dichlorobenzene
2976=Vinyl chloride
2977=1,1-Dichloroethylene
2979=trans-1,2-Dichloroethylene
2980=1,2-Dichloroethane
2981=1,1,1-Trichloroethane
2982=Carbon tetrachloride
2983=1,2-Dichloropropane
2984=Trichloroethylene
2985=1,1,2-Trichloroethane
2987=Tetrachloroethylene
2989=CHLOROBENZENE
2990=Benzene
2991=Toluene
2992=Ethylbenzene

03 / OVERSIGHT & COVERAGE

Visits and sanitary surveys for Mchenry

The export lists 8 site visits in five years and 0 significant deficiencies for Mchenry.

Site visits, past 5 years: 8
Inspection visits: 0
Other visits: 8
Last sanitary survey: 05/08/2023
Last recorded visit: 03/30/2026
Significant deficiencies: 0

Places served by Mchenry

EPA associates Mchenry with the listed cities, counties, ZIP codes, and Illinois service area identifiers.

State / territory: Illinois
Cities: MCHENRY
Counties: McHenry
ZIP codes: Not supplied
Federal PWSID: IL1110600
Registry ID: 110013019624

04 / HOW TO USE THIS RECORD

Current public records for Mchenry

EPA’s facility report, the Illinois drinking-water program, and Mchenry’s Consumer Confidence Report are the current public records beyond this September 2026 snapshot.

Confirm current conditions with the utility's latest Consumer Confidence Report, your state drinking-water program, and the EPA facility report. For household concerns, ask a qualified local laboratory about tap testing.

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