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ROCKDALE

Illinois — Community Water System — PWSID: IL1970850

System Information

PWSIDIL1970850
System NameROCKDALE
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
CityROCKDALE
ZIP Code60436
AddressVILLAGE OF ROCKDALE
OrganizationWYKE, SAMUEL
Phone815-725-8937

Population & Service

Population Served2,012
Service Connections945

Drinking Water Violations (327)

This water system has 327 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 1, 2025 Sep 30, 2025 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Archived Sep 30, 2025 Radionuclides and Revised Rad Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Oct 11, 2024 — Public Notice Other No No — — — Resolved Nov 30, 2024 Public Notice Rule and Revised PN Rule
Oct 11, 2024 — Public Notice Other No No — — — Resolved Nov 30, 2024 Public Notice Rule and Revised PN Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Jul 1, 2023 Sep 30, 2023 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2023 Synthetic Organic Chemicals
Jul 1, 2023 Sep 30, 2023 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2023 Synthetic Organic Chemicals
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Jul 1, 2023 Sep 30, 2023 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2023 Synthetic Organic Chemicals
Jul 1, 2023 Sep 30, 2023 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2023 Synthetic Organic Chemicals
Apr 20, 2023 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Sep 29, 2022 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2022 Consumer Confidence Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2022 Consumer Confidence Rule
Jan 13, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jan 1, 2022 Mar 31, 2022 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Jan 1, 2022 Mar 31, 2022 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2022 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Jul 1, 2021 — Consumer Confidence Rule Other No No — — — Resolved Jul 26, 2021 Consumer Confidence Rule
Jul 1, 2021 — Consumer Confidence Rule Other No No — — — Resolved Jul 26, 2021 Consumer Confidence Rule
Oct 1, 2020 Dec 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Oct 13, 2016 Lead and Copper Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Oct 13, 2016 Lead and Copper Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Jul 5, 2013 Consumer Confidence Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Jul 5, 2013 Consumer Confidence Rule
Oct 1, 2009 Dec 31, 2009 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2009 Radionuclides and Revised Rad Rule
Oct 1, 2009 Dec 31, 2009 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2009 Radionuclides and Revised Rad Rule
Oct 1, 2009 Dec 31, 2009 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2009 Radionuclides and Revised Rad Rule
Oct 1, 2009 Dec 31, 2009 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2009 Radionuclides and Revised Rad Rule
Oct 1, 2009 Dec 31, 2009 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2009 Radionuclides and Revised Rad Rule
Oct 1, 2009 Dec 31, 2009 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Combined Radium (-226 and -228) MCL Yes No 8 PCI/L 5 pCi/L 5 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Combined Radium (-226 and -228) MCL Yes No 8 PCI/L 5 pCi/L 5 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Combined Radium (-226 and -228) MCL Yes No 8 PCI/L 5 pCi/L 5 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Combined Radium (-226 and -228) MCL Yes No 8 PCI/L 5 pCi/L 5 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Combined Radium (-226 and -228) MCL Yes No 8 PCI/L 5 pCi/L 5 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Gross Alpha, Excl. Radon and U MCL Yes No 18 PCI/L 15 pCi/L 15 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Combined Radium (-226 and -228) MCL Yes No 8 PCI/L 5 pCi/L 5 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Gross Alpha, Excl. Radon and U MCL Yes No 18 PCI/L 15 pCi/L 15 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Gross Alpha, Excl. Radon and U MCL Yes No 18 PCI/L 15 pCi/L 15 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Gross Alpha, Excl. Radon and U MCL Yes No 18 PCI/L 15 pCi/L 15 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Jul 1, 2009 Sep 30, 2009 Gross Alpha, Excl. Radon and U MCL Yes No 18 PCI/L 15 pCi/L 15 Resolved Sep 30, 2009 Radionuclides and Revised Rad Rule
Apr 1, 2009 Jun 30, 2009 Combined Radium (-226 and -228) MCL Yes No 8 PCI/L 5 pCi/L 5 Resolved Jun 30, 2009 Radionuclides and Revised Rad Rule
Apr 1, 2009 Jun 30, 2009 Combined Radium (-226 and -228) MCL Yes No 8 PCI/L 5 pCi/L 5 Resolved Jun 30, 2009 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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