MAZON, IL · Grundy County

MAZON 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): IL0630500
System type: Community Water System
Population served: 994
Service connections: 472
Ownership: local government
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – December 26, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – January 28, 2021
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2020 – September 10, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2019 – August 16, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2019 – August 16, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2017 – August 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2016 – August 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2016 – August 31, 2017
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2009 – December 18, 2009
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2023 – December 26, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 30, 2020 – January 28, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2020 – September 10, 2021	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2019 – August 16, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2019 – August 16, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2017 – August 31, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2016 – August 31, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2016 – August 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2009 – December 18, 2009	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

December 26, 2023State Compliance achieved1 linked violation
December 4, 2023State Violation/Reminder Notice1 linked violation
September 10, 2021State Compliance achieved1 linked violation
January 28, 2021State Compliance achieved1 linked violation
January 6, 2021State Violation/Reminder Notice1 linked violation
October 20, 2020State Violation/Reminder Notice1 linked violation
July 2, 2020State Public Notification received2 linked violations
October 15, 2019State Public Notification requested2 linked violations
October 15, 2019State Violation/Reminder Notice2 linked violations
October 1, 2019State Public Notification received2 linked violations
August 16, 2019State Compliance achieved6 linked violations
October 15, 2018State Public Notification requested2 linked violations
October 15, 2018State Violation/Reminder Notice2 linked violations
July 10, 2018State Public Notification received2 linked violations
October 12, 2017State Public Notification requested2 linked violations
October 12, 2017State Violation/Reminder Notice2 linked violations
December 18, 2009State Compliance achieved1 linked violation
December 15, 2009State Violation/Reminder Notice1 linked violation

Contact

MARQUES, JEFFREY A.

815-448-2206

MAZON, IL 60444