EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records
PUBLIC WATER SYSTEM RECORDPWSID 090605047

California · Ground water

Colusa Southern System

EPA’s September 2026 export lists Colusa Southern System (PWSID 090605047) as No current violation flagged, serving a reported 3,474 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 Colusa Southern System

Colusa Southern System 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 Colusa Southern System

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

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

Three-year entries for Colusa Southern System

EPA supplied 0 contaminant or rule entries for Colusa Southern System 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 Colusa Southern System

The export lists 6 site visits in five years and 1 significant deficiencies for Colusa Southern System.

Site visits, past 5 years
6
Inspection visits
0
Other visits
6
Last sanitary survey
05/24/2022
Last recorded visit
05/24/2022
Significant deficiencies
1

Places served by Colusa Southern System

EPA associates Colusa Southern System with the listed cities, counties, ZIP codes, and California service area identifiers.

State / territory
California
Cities
Not supplied
Counties
Not supplied
ZIP codes
Not supplied
Federal PWSID
090605047
Registry ID
110013238362

04 / HOW TO USE THIS RECORD

Current public records for Colusa Southern System

EPA’s facility report, the California drinking-water program, and Colusa Southern System’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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