EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records
PUBLIC WATER SYSTEM RECORDPWSID IL1110400

Illinois · Ground water

Lake In The Hills

EPA’s September 2026 export lists Lake In The Hills (PWSID IL1110400) as No current violation flagged, serving a reported 28,661 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 Lake In The Hills

Lake In The Hills 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 violations4rolling history field
Quarters with SNC0significant noncompliance
Rules in current violation0EPA export count
Rules in 3-year window1EPA export count

Current rule entries for Lake In The Hills

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

  • Monitoring and Reporting

Three-year entries for Lake In The Hills

EPA supplied 2 contaminant or rule entries for Lake In The Hills in the three-year history field.

  • 2456=Total Haloacetic Acids (HAA5)
  • 2950=TTHM

03 / OVERSIGHT & COVERAGE

Visits and sanitary surveys for Lake In The Hills

The export lists 3 site visits in five years and 1 significant deficiencies for Lake In The Hills.

Site visits, past 5 years
3
Inspection visits
0
Other visits
3
Last sanitary survey
12/11/2024
Last recorded visit
05/12/2025
Significant deficiencies
1

Places served by Lake In The Hills

EPA associates Lake In The Hills with the listed cities, counties, ZIP codes, and Illinois service area identifiers.

State / territory
Illinois
Counties
McHenry
ZIP codes
Not supplied
Federal PWSID
IL1110400
Registry ID
110013019599

04 / HOW TO USE THIS RECORD

Current public records for Lake In The Hills

EPA’s facility report, the Illinois drinking-water program, and Lake In The Hills’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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