EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records
PUBLIC WATER SYSTEM RECORDPWSID CA3610034

California · Surface water purchased

Ontario Municipal Utilities Company

EPA’s September 2026 export lists Ontario Municipal Utilities Company (PWSID CA3610034) as No current violation flagged, serving a reported 185,010 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 Ontario Municipal Utilities Company

Ontario Municipal Utilities Company 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 Ontario Municipal Utilities Company

EPA supplied 0 current contaminant, rule, or violation-category entries for Ontario Municipal Utilities Company in the exported fields used here.

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

Three-year entries for Ontario Municipal Utilities Company

EPA supplied 0 contaminant or rule entries for Ontario Municipal Utilities Company 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 Ontario Municipal Utilities Company

The export lists 1 site visits in five years and 0 significant deficiencies for Ontario Municipal Utilities Company.

Site visits, past 5 years
1
Inspection visits
0
Other visits
1
Last sanitary survey
07/02/2025
Last recorded visit
07/02/2025
Significant deficiencies
0

Places served by Ontario Municipal Utilities Company

EPA associates Ontario Municipal Utilities Company with the listed cities, counties, ZIP codes, and California service area identifiers.

State / territory
California
Cities
ONTARIO
ZIP codes
Not supplied
Federal PWSID
CA3610034
Registry ID
110013853204

04 / HOW TO USE THIS RECORD

Current public records for Ontario Municipal Utilities Company

EPA’s facility report, the California drinking-water program, and Ontario Municipal Utilities Company’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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