EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records
PUBLIC WATER SYSTEM RECORDPWSID IL0312100

Illinois · Surface water purchased

Northfield

EPA’s September 2026 export lists Northfield (PWSID IL0312100) as Current monitoring/reporting flag, serving a reported 5,470 people from a surface water purchased source, with 1 rules in current violation.

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

CURRENT EXPORTCurrent monitoring/reporting flagEPA's export includes a current monitoring or reporting violation flag.
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01 / CURRENT FLAGS

EPA compliance flags for Northfield

Northfield is listed as current monitoring/reporting flag in the current export; the five federal flag categories remain separate below.

  • NOT FLAGGED
    Health-based violationCurrent HEALTH_FLAG in the EPA export.
  • 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 violations1rolling history field
Quarters with SNC0significant noncompliance
Rules in current violation1EPA export count
Rules in 3-year window1EPA export count

Current rule entries for Northfield

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

  • 5000=Lead and Copper Rule

Three-year entries for Northfield

EPA supplied 1 contaminant or rule entries for Northfield in the three-year history field.

  • 5000=Lead and Copper Rule

03 / OVERSIGHT & COVERAGE

Visits and sanitary surveys for Northfield

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

Site visits, past 5 years
1
Inspection visits
0
Other visits
1
Last sanitary survey
07/26/2023
Last recorded visit
07/26/2023
Significant deficiencies
2

Places served by Northfield

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

State / territory
Illinois
Cities
NORTHFIELD
Counties
Cook
ZIP codes
Not supplied
Federal PWSID
IL0312100
Registry ID
110013212834

04 / HOW TO USE THIS RECORD

Current public records for Northfield

EPA’s facility report, the Illinois drinking-water program, and Northfield’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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