Is SCHAUMBURG required to publish a Consumer Confidence Report?

Yes. SCHAUMBURG is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is SCHAUMBURG’s next Consumer Confidence Report due?

SCHAUMBURG’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

SCHAUMBURG, IL · Cook County

SCHAUMBURG Water System

Consumer Confidence Report status

SCHAUMBURG must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for SCHAUMBURG.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): IL0314890
System type: Community Water System
Population served: 75,750
Service connections: 26,493
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

SCHAUMBURG is among the 16 largest community water systems in Illinois, serving 75,750 people from surface water.

As of August 1, 2026, its federal record holds 6 entries between 1977 and 2024, all of which EPA lists as closed.

Of the 6, 5 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, the Consumer Confidence Rule, and the Total Coliform Rules.

Violation history

Monitoring, Regular
—
Diquat
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Diquat
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Diquat
January 1, 2024 – December 31, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2015 – June 6, 2016
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 2003 – May 31, 2003
Archived
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
January 1, 2024 – December 31, 2024	Monitoring, Regular	Diquat	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Diquat	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Diquat	—	Resolved
July 1, 2015 – June 6, 2016	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
May 1, 2003 – May 31, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
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

January 16, 2026State Compliance achieved3 linked violations
June 9, 2025State Public Notification received2 linked violations
June 9, 2025State Public Notification received2 linked violations
January 13, 2025State Violation/Reminder Notice3 linked violations
January 13, 2025State Violation/Reminder Notice2 linked violations
June 6, 2016State Compliance achieved4 linked violations
July 29, 2015State Violation/Reminder Notice1 linked violation
January 1, 1989State Violation/Reminder Notice1 linked violation

Common questions

Is SCHAUMBURG required to publish a Consumer Confidence Report?: Yes. SCHAUMBURG is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is SCHAUMBURG’s next Consumer Confidence Report due?: SCHAUMBURG’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SCHAUMBURG have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for SCHAUMBURG.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

HALL, MICHAEL

847-923-6616

SCHAUMBURG, IL 60193