Drinking Water Compliance OS

CREST HILL, IL · Will County

CREST HILL Water System

Current status

4 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID)
IL1970250
System type
Community Water System
Population served
21,169
Service connections
6,500
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2025 – October 31, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    October 1, 2025 – October 31, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 12, 2025

    Unaddressed
  • Notification, Known or Potential LSL

    LEAD AND COPPER RULE REVISIONS

    July 2, 2025

    Unaddressed
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    July 1, 2025

    Unaddressed
  • Public Notification Violation for NPDWR Violation

    Public Notice

    February 23, 2025 – March 25, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 13, 2024 – May 1, 2024

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    July 1, 2024

    Unaddressed
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2024 – December 30, 2024

    Resolved
  • OCCT/SOWT Study/Recommendation

    Health-based

    Lead and Copper Rule

    January 2, 2024 – February 14, 2025

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2023 – March 11, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Selenium

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Antimony, Total

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Mercury

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    CYANIDE

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Barium

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Fluoride

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Nickel

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Chromium

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    OXAMYL

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Diquat

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Diquat

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Carbofuran

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Cadmium

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    October 1, 2021 – October 31, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2021 – December 9, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    September 1, 2021 – September 30, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2021 – September 30, 2021

    Resolved
  • Monitoring, Regular

    CYANIDE

    January 1, 2020 – December 31, 2022

    Archived
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2020 – December 31, 2022

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    December 1, 2019 – December 31, 2019

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2019 – November 30, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2019 – December 31, 2019

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    December 1, 2018 – December 31, 2018

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 16, 2018 – October 24, 2018

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2018 – December 31, 2018

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2018 – July 31, 2018

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    November 1, 2016 – October 31, 2017

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    November 1, 2016 – October 31, 2017

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2016 – September 8, 2016

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    July 1, 2016 – July 31, 2016

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    June 1, 2016 – June 30, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2016 – June 30, 2016

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2013 – July 31, 2013

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2005 – June 13, 2006

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    April 1, 2001 – April 30, 2001

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 1998 – October 31, 1998

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 1998 – August 31, 1998

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    February 1, 1997 – February 28, 1997

    Archived
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    February 1, 1997 – February 28, 1997

    Archived
  • Maximum Contaminant Level Violation, Acute (TCR)

    Health-based

    Coliform (TCR)

    March 1, 1995 – March 31, 1995

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    March 1, 1995 – March 31, 1995

    Archived
  • OCCT/SOWT Study/Recommendation

    Health-based

    Lead and Copper Rule

    September 2, 1993 – January 23, 1995

    Resolved
  • Public Education

    Health-based

    Lead and Copper Rule

    July 1, 1993 – February 10, 1994

    Resolved
  • Maximum Contaminant Level Violation, Acute (TCR)

    Health-based

    Coliform (TCR)

    April 1, 1993 – April 30, 1993

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    April 1, 1993 – April 30, 1993

    Archived
  • Monitoring, Regular

    Trichloroethylene

    January 1, 1992 – March 31, 1992

    Archived
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 1992 – March 31, 1992

    Archived
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    January 1, 1991 – January 31, 1991

    Archived
  • Monitoring, Regular

    Carbon tetrachloride

    July 1, 1990 – September 30, 1990

    Archived
  • Monitoring, Regular

    1,2-Dichloroethane

    July 1, 1990 – September 30, 1990

    Archived
  • Monitoring, Regular

    Benzene

    July 1, 1990 – September 30, 1990

    Archived
  • Monitoring, Regular

    1,1,1-Trichloroethane

    July 1, 1990 – September 30, 1990

    Archived
  • Monitoring, Regular

    p-Dichlorobenzene

    July 1, 1990 – September 30, 1990

    Archived
  • Monitoring, Regular

    1,2-Dichloroethane

    April 1, 1990 – June 30, 1990

    Archived
  • Monitoring, Regular

    1,1-Dichloroethylene

    April 1, 1990 – June 30, 1990

    Archived
  • Monitoring, Regular

    p-Dichlorobenzene

    April 1, 1990 – June 30, 1990

    Archived
  • Monitoring, Regular

    Benzene

    April 1, 1990 – June 30, 1990

    Archived
  • Monitoring, Regular

    Trichloroethylene

    April 1, 1990 – June 30, 1990

    Archived
  • Monitoring, Regular

    Carbon tetrachloride

    April 1, 1990 – June 30, 1990

    Archived
  • Monitoring, Regular

    1,1,1-Trichloroethane

    April 1, 1990 – June 30, 1990

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    June 30, 1977 – June 29, 1981

    Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Contact

KEMP, JOHN

815-723-8671

CREST HILL, IL 60403