LA SALLE, IL · LaSalle County

LA SALLE Water System

Current status

No open violations on record as of July 4, 2026.

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): IL0990300
System type: Community Water System
Population served: 9,700
Service connections: 3,967
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2025 – December 31, 2025
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2024 – June 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2024 – June 30, 2024
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2023 – February 29, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2022 – September 30, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2022 – June 30, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2022 – March 31, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2017 – December 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2017 – September 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
April 1, 2013 – April 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
Bromate
July 1, 2007 – September 12, 2007
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 23, 2006 – June 19, 2006
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
February 23, 2006 – June 19, 2006
Resolved
Monitoring and Reporting (DBP)
—
Bromate
October 1, 2004 – December 29, 2004
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Endrin
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Diquat
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Endothall
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Simazine
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Archived 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
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
June 1, 2024 – June 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2023 – February 29, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2022 – September 30, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2022 – June 30, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2022 – March 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2017 – September 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2013 – April 30, 2013	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2007 – September 12, 2007	Monitoring and Reporting (DBP)	Bromate	—	Resolved
February 23, 2006 – June 19, 2006	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
February 23, 2006 – June 19, 2006	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
October 1, 2004 – December 29, 2004	Monitoring and Reporting (DBP)	Bromate	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Endrin	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Diquat	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Endothall	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Simazine	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 1995 – December 31, 1995	Monitoring, Regular	Nitrate	—	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

April 23, 2025State Public Notification received1 linked violation
April 23, 2025State Public Notification received1 linked violation
August 19, 2024State Public Notification requested1 linked violation
August 19, 2024State Violation/Reminder Notice1 linked violation
August 19, 2024State Public Notification requested1 linked violation
August 19, 2024State Violation/Reminder Notice1 linked violation
July 22, 2024State Compliance achieved2 linked violations
June 18, 2024State Public Notification received1 linked violation
February 29, 2024State Compliance achieved1 linked violation
October 11, 2023State Violation/Reminder Notice1 linked violation
October 11, 2023State Public Notification requested1 linked violation
December 29, 2022State Compliance achieved3 linked violations
December 20, 2022State Public Notification received1 linked violation
October 3, 2022State Public Notification requested1 linked violation
October 3, 2022State Violation/Reminder Notice1 linked violation
August 10, 2022State Bilateral Compliance Agreement signed3 linked violations
August 10, 2022State Administrative/Compliance Order without penalty issued1 linked violation
August 10, 2022State Administrative/Compliance Order without penalty issued1 linked violation
August 10, 2022State Administrative/Compliance Order without penalty issued1 linked violation
July 26, 2022State Public Notification received1 linked violation
June 17, 2022State Violation/Reminder Notice1 linked violation
June 17, 2022State Public Notification requested1 linked violation
May 17, 2022State Formal Notice of Violation issued3 linked violations
April 13, 2022State Public Notification received1 linked violation
March 22, 2022State Violation/Reminder Notice1 linked violation
March 22, 2022State Public Notification requested1 linked violation
March 24, 2018State Compliance achieved3 linked violations
January 10, 2018State Public Notification received1 linked violation
January 8, 2018State Public Notification received1 linked violation
December 28, 2017State Public Notification requested1 linked violation
December 28, 2017State Violation/Reminder Notice1 linked violation
October 2, 2017State Violation/Reminder Notice1 linked violation
October 2, 2017State Public Notification requested1 linked violation
September 18, 2017State Bilateral Compliance Agreement signed3 linked violations
July 11, 2017State Public Notification received1 linked violation
July 6, 2017State Formal Notice of Violation issued3 linked violations
June 23, 2017State Public Notification requested1 linked violation
June 23, 2017State Violation/Reminder Notice1 linked violation
May 1, 2014State Public Notification received1 linked violation
June 5, 2013State Compliance achieved1 linked violation
May 17, 2013State Public Notification requested1 linked violation
May 17, 2013State Violation/Reminder Notice1 linked violation
December 3, 2007State Public Notification received1 linked violation
September 12, 2007State Compliance achieved1 linked violation
May 1, 2007State Compliance achieved1 linked violation
June 27, 2006State Bilateral Compliance Agreement signed2 linked violations
June 19, 2006State Public Notification received32 linked violations
June 19, 2006State Compliance achieved2 linked violations
May 30, 2006State Public Notification requested1 linked violation
May 30, 2006State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 30, 2006State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 30, 2006State Violation/Reminder Notice1 linked violation
May 15, 2006State Formal Notice of Violation issued2 linked violations
May 4, 2006State Compliance achieved1 linked violation
March 9, 2006State Violation/Reminder Notice1 linked violation
March 9, 2006State Violation/Reminder Notice1 linked violation
February 17, 2006State Public Notification received1 linked violation
April 27, 2005State Compliance achieved31 linked violations
February 22, 2005State Public Notification requested31 linked violations
February 22, 2005State Violation/Reminder Notice31 linked violations
January 6, 2005State Violation/Reminder Notice1 linked violation
January 6, 2005State Public Notification requested1 linked violation
December 29, 2004State Compliance achieved1 linked violation
September 30, 1996State Compliance achieved1 linked violation
February 14, 1996State Public Notification received1 linked violation
February 6, 1996State Public Notification requested1 linked violation
February 6, 1996State Violation/Reminder Notice1 linked violation

Contact

GROVE, JEFFREY

815-223-3755

LA SALLE, IL 61301