HILLSBORO, IL · Montgomery County

HILLSBORO Water System

Current status

1 item on record is 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): IL1350300
System type: Community Water System
Population served: 4,402
Service connections: 2,082
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2025
Unaddressed
Monitoring, Regular
—
Nitrite
April 1, 2025 – June 30, 2025
Archived
Monitoring, Regular
—
Nitrate
April 1, 2025 – June 30, 2025
Archived
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Toxaphene
April 1, 2023 – June 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2020 – March 31, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2019 – September 30, 2019
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2017 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2009 – December 31, 2009
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2009 – July 31, 2009
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2009 – June 30, 2009
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2009 – June 30, 2009
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2007 – January 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chloramine
January 1, 2007 – February 20, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
April 1, 1995 – June 30, 1995
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
October 1, 1994 – December 31, 1994
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 1992 – December 31, 1992
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
April 1, 2025 – June 30, 2025	Monitoring, Regular	Nitrite	—	Archived
April 1, 2025 – June 30, 2025	Monitoring, Regular	Nitrate	—	Archived
July 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2009 – July 31, 2009	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
June 1, 2009 – June 30, 2009	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
June 1, 2009 – June 30, 2009	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
January 1, 2007 – January 31, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2007 – February 20, 2007	Monitoring and Reporting (DBP)	Chloramine	—	Resolved
April 1, 1995 – June 30, 1995	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
October 1, 1994 – December 31, 1994	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
July 1, 1994 – September 30, 1994	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
December 1, 1992 – December 31, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

July 29, 2025State Public Notification requested1 linked violation
July 29, 2025State Violation/Reminder Notice1 linked violation
July 16, 2025State Violation/Reminder Notice1 linked violation
July 16, 2025State Public Notification requested1 linked violation
July 16, 2025State Violation/Reminder Notice1 linked violation
July 16, 2025State Public Notification requested1 linked violation
June 10, 2025State Public Notification received1 linked violation
December 9, 2024State Compliance achieved1 linked violation
October 11, 2024State Public Notification requested1 linked violation
October 11, 2024State Violation/Reminder Notice1 linked violation
June 19, 2024State Compliance achieved1 linked violation
June 10, 2024State Public Notification received1 linked violation
July 11, 2023State Public Notification requested1 linked violation
July 11, 2023State Violation/Reminder Notice1 linked violation
June 17, 2020State Public Notification received1 linked violation
June 17, 2020State Public Notification received1 linked violation
June 5, 2020State Compliance achieved3 linked violations
April 14, 2020State Compliance achieved1 linked violation
March 18, 2020State Violation/Reminder Notice1 linked violation
March 18, 2020State Public Notification requested1 linked violation
March 2, 2020State Public Notification received1 linked violation
January 13, 2020State Violation/Reminder Notice1 linked violation
January 13, 2020State Public Notification requested1 linked violation
January 2, 2020State Bilateral Compliance Agreement signed3 linked violations
December 3, 2019State Public Notification requested1 linked violation
December 3, 2019State Violation/Reminder Notice1 linked violation
October 25, 2019State Public Notification received1 linked violation
September 25, 2019State Formal Notice of Violation issued3 linked violations
September 23, 2019State Public Notification requested1 linked violation
September 23, 2019State Violation/Reminder Notice1 linked violation
June 8, 2010State Compliance achieved2 linked violations
April 22, 2010State Public Notification received1 linked violation
March 22, 2010State Public Notification requested1 linked violation
March 22, 2010State Violation/Reminder Notice1 linked violation
March 15, 2010State Bilateral Compliance Agreement signed2 linked violations
January 27, 2010State Public Notification received1 linked violation
January 21, 2010State Formal Notice of Violation issued2 linked violations
January 6, 2010State Public Notification requested1 linked violation
January 6, 2010State Violation/Reminder Notice1 linked violation
September 30, 2009State Bilateral Compliance Agreement signed3 linked violations
September 2, 2009State Compliance achieved2 linked violations
August 7, 2009State Public Notification received3 linked violations
August 6, 2009State Formal Notice of Violation issued3 linked violations
August 3, 2009State Public Notification requested1 linked violation
August 3, 2009State Compliance achieved1 linked violation
August 3, 2009State Violation/Reminder Notice1 linked violation
July 13, 2009State Public Notification requested1 linked violation
July 13, 2009State Public Notification requested1 linked violation
July 13, 2009State Violation/Reminder Notice1 linked violation
July 13, 2009State Violation/Reminder Notice1 linked violation
August 1, 2007State Compliance achieved1 linked violation
February 20, 2007State Compliance achieved1 linked violation
February 16, 2007State Violation/Reminder Notice1 linked violation
February 15, 2007State Violation/Reminder Notice1 linked violation
July 30, 2004State Bilateral Compliance Agreement signed1 linked violation
June 16, 2004State Public Notification received1 linked violation
May 24, 2004State Violation/Reminder Notice1 linked violation
May 24, 2004State Public Notification requested1 linked violation
April 21, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
March 22, 2004State Compliance achieved1 linked violation
August 23, 1995State Compliance achieved4 linked violations
July 1, 1995State Public Notification requested1 linked violation
July 1, 1995State Violation/Reminder Notice1 linked violation
May 20, 1995State Public Notification received1 linked violation
April 1, 1995State Public Notification requested1 linked violation
April 1, 1995State Violation/Reminder Notice1 linked violation
January 1, 1995State Public Notification requested1 linked violation
January 1, 1995State Violation/Reminder Notice1 linked violation
October 1, 1994State Violation/Reminder Notice1 linked violation
October 1, 1994State Public Notification requested1 linked violation
March 3, 1993State Public Notification received1 linked violation
February 6, 1993State Public Notification requested1 linked violation
February 6, 1993State Violation/Reminder Notice1 linked violation

Contact

DOWNS, DON

217-532-5566

HILLSBORO, IL 62049