EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records
PUBLIC WATER SYSTEM RECORDPWSID IL0990800

Illinois · Ground water

Ottawa

EPA’s September 2026 export lists Ottawa (PWSID IL0990800) as Current monitoring/reporting flag, serving a reported 18,097 people from a ground water 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.
Open EPA Detailed Facility Report ↗

01 / CURRENT FLAGS

EPA compliance flags for Ottawa

Ottawa 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 violations6rolling history field
Quarters with SNC0significant noncompliance
Rules in current violation1EPA export count
Rules in 3-year window3EPA export count

Current rule entries for Ottawa

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

  • 5200=LEAD AND COPPER RULE REVISIONS

Three-year entries for Ottawa

EPA supplied 4 contaminant or rule entries for Ottawa in the three-year history field.

  • 2456=Total Haloacetic Acids (HAA5)
  • 2950=TTHM
  • 4010=Combined Radium (-226 and -228)
  • 5200=LEAD AND COPPER RULE REVISIONS

03 / OVERSIGHT & COVERAGE

Visits and sanitary surveys for Ottawa

The export lists 3 site visits in five years and 3 significant deficiencies for Ottawa.

Site visits, past 5 years
3
Inspection visits
0
Other visits
3
Last sanitary survey
07/16/2025
Last recorded visit
07/16/2025
Significant deficiencies
3

Places served by Ottawa

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

State / territory
Illinois
Cities
OTTAWA
Counties
LaSalle
ZIP codes
Not supplied
Federal PWSID
IL0990800
Registry ID
110013059322

04 / HOW TO USE THIS RECORD

Current public records for Ottawa

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