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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 ReportedDec 4, 2025

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 (44)

This water system has 44 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 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Unaddressed — Lead and Copper Rule Revisions
Jul 2, 2025 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Unaddressed — Lead and Copper Rule Revisions
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Unaddressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Unaddressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Unaddressed — Lead and Copper Rule Revisions
Jul 1, 2023 Sep 30, 2023 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Sep 30, 2023 Radionuclides and Revised Rad Rule
Jul 1, 2023 Sep 30, 2023 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Sep 30, 2023 Radionuclides and Revised Rad Rule
Jul 1, 2023 Sep 30, 2023 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Sep 30, 2023 Radionuclides and Revised Rad Rule
Jul 1, 2023 Sep 30, 2023 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Sep 30, 2023 Radionuclides and Revised Rad Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 7.7 5 pCi/L 5 Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
May 1, 1994 May 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Archived May 31, 1994 Total Coliform Rule
Jun 30, 1977 Jun 29, 1981 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Archived Jun 29, 1981 Radionuclides and Revised Rad Rule

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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