ROCK ISLAND, IL · Rock Island County

ROCK ISLAND ARSENAL, US ARMY 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): IL1615387
System type: Community Water System
Population served: 7,800
Service connections: 198
Ownership: federal government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Regular
—
Nitrate
April 1, 2025 – April 12, 2025
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2025 – June 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2025 – June 30, 2025
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – February 1, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2015 – March 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2014 – December 31, 2014
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2007 – November 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chloramine
October 1, 2007 – December 31, 2007
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – July 30, 2003
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1997 – August 31, 1997
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
April 1, 2025 – April 12, 2025	Monitoring, Regular	Nitrate	—	Resolved
April 1, 2025 – June 30, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2025 – June 30, 2025	Monitoring and Reporting (DBP)	TTHM	—	Resolved
December 30, 2020 – February 1, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
November 1, 2007 – November 30, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring and Reporting (DBP)	Chloramine	—	Resolved
July 1, 2003 – July 30, 2003	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 1, 1997 – August 31, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived

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

Enforcement actions

August 26, 2025State Compliance achieved2 linked violations
July 16, 2025State Public Notification requested1 linked violation
July 16, 2025State Violation/Reminder Notice1 linked violation
July 11, 2025State Violation/Reminder Notice2 linked violations
July 11, 2025State Public Notification requested2 linked violations
April 12, 2025State Compliance achieved1 linked violation
February 1, 2021State Compliance achieved1 linked violation
January 6, 2021State Violation/Reminder Notice1 linked violation
May 12, 2015State Compliance achieved2 linked violations
March 31, 2015State Public Notification received1 linked violation
March 10, 2015State Bilateral Compliance Agreement signed2 linked violations
March 3, 2015State Violation/Reminder Notice1 linked violation
March 3, 2015State Public Notification requested1 linked violation
December 29, 2014State Public Notification received1 linked violation
December 4, 2014State Formal Notice of Violation issued2 linked violations
November 24, 2014State Public Notification requested1 linked violation
November 24, 2014State Violation/Reminder Notice1 linked violation
June 1, 2008State Compliance achieved1 linked violation
January 9, 2008State Compliance achieved1 linked violation
December 19, 2007State Violation/Reminder Notice1 linked violation
December 17, 2007State Violation/Reminder Notice1 linked violation
July 16, 2007State Violation/Reminder Notice1 linked violation
July 12, 2007State Compliance achieved1 linked violation
July 30, 2003State Compliance achieved1 linked violation
July 10, 2003State Violation/Reminder Notice1 linked violation
November 8, 1997State Public Notification requested1 linked violation
November 8, 1997State Violation/Reminder Notice1 linked violation
November 1, 1997State Public Notification received1 linked violation

Contact

ST. LOUIS, LAURA

309-782-5366

ROCK ISLAND, IL 61299