OREGON

Illinois - Community Water System - PWSID: IL1410400

System Information

PWSIDIL1410400
System NameOREGON
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1981
Last ReportedFeb 26, 2026

Location & Contact

StateIllinois
CityOREGON
ZIP Code61061
AddressCITY OF OREGON
OrganizationPENNINGTON, JEFFERY A.
Phone815-732-7098

Population & Service

Population Served3,449
Service Connections1,569

Drinking Water Violations (55)

This water system has 55 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jul 2, 2025 - RPT No No - - - Unaddressed - -
Jul 2, 2025 - RPT No No - - - Unaddressed - -
Jul 1, 2025 - Other No No - - - Unaddressed - -
Oct 17, 2024 - TT Yes No - - - Resolved Apr 14, 2025 -
Oct 17, 2024 - TT Yes No - - - Resolved Apr 14, 2025 -
Oct 17, 2024 - TT Yes No - - - Resolved Apr 14, 2025 -
Oct 17, 2024 - TT Yes No - - - Resolved Apr 14, 2025 -
Jul 1, 2023 Sep 30, 2023 MR No Yes - 5 pCi/L - Resolved Sep 30, 2023 -
Jul 1, 2023 Sep 30, 2023 MR No Yes - 5 pCi/L - Resolved Sep 30, 2023 -
Jul 1, 2023 Sep 30, 2023 MR No Yes - 5 pCi/L - Resolved Sep 30, 2023 -
Jul 1, 2023 Sep 30, 2023 MR No Yes - 5 pCi/L - Resolved Sep 30, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 0.080 mg/L - Resolved Dec 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 0.060 mg/L - Resolved Dec 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 0.060 mg/L - Resolved Dec 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 0.060 mg/L - Resolved Dec 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 0.060 mg/L - Resolved Dec 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 0.080 mg/L - Resolved Dec 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 0.080 mg/L - Resolved Dec 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 0.080 mg/L - Resolved Dec 31, 2023 -
Jan 1, 2004 Mar 31, 2004 MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 -
Jan 1, 2004 Mar 31, 2004 MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 -
Jan 1, 2004 Mar 31, 2004 MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 -
Jan 1, 2004 Mar 31, 2004 MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 -
Jan 1, 2004 Mar 31, 2004 MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
May 1, 1994 May 31, 1994 MCL Yes No - 5% of samples - Archived May 31, 1994 -
Jun 30, 1977 Jun 29, 1981 MR No No - 15 pCi/L - Archived Jun 29, 1981 -
- - - No No - - - - - -
- - - No No - - - - - -
- - - No No - - - - - -
- - - No No - - - - - -
- - - No No - - - - - -

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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