EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records
PUBLIC WATER SYSTEM RECORDPWSID IL0312250

Illinois · Surface water purchased

Oak Park

EPA’s September 2026 export lists Oak Park (PWSID IL0312250) as No current violation flagged, serving a reported 54,583 people from a surface water purchased 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.
Open EPA Detailed Facility Report ↗

01 / CURRENT FLAGS

EPA compliance flags for Oak Park

Oak Park 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 violations0rolling history field
Quarters with SNC0significant noncompliance
Rules in current violation0EPA export count
Rules in 3-year window0EPA export count

Current rule entries for Oak Park

EPA supplied 0 current contaminant, rule, or violation-category entries for Oak Park in the exported fields used here.

  • No current contaminant or rule names were supplied in these export fields.

Three-year entries for Oak Park

EPA supplied 0 contaminant or rule entries for Oak Park in the three-year history field.

  • No three-year contaminant or rule names were supplied in this export field.

03 / OVERSIGHT & COVERAGE

Visits and sanitary surveys for Oak Park

The export lists 1 site visits in five years and 2 significant deficiencies for Oak Park.

Site visits, past 5 years
1
Inspection visits
0
Other visits
1
Last sanitary survey
10/04/2023
Last recorded visit
10/04/2023
Significant deficiencies
2

Places served by Oak Park

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

State / territory
Illinois
Cities
OAK PARK
Counties
Cook
ZIP codes
Not supplied
Federal PWSID
IL0312250
Registry ID
110013210195

04 / HOW TO USE THIS RECORD

Current public records for Oak Park

EPA’s facility report, the Illinois drinking-water program, and Oak Park’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.

How the ledger is built →