MCCOOK, IL · Cook County
MC COOK Water System
Consumer Confidence Report status
MC COOK 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 MC COOK.
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)
- IL0311740
- System type
- Community Water System
- Population served
- 280
- Service connections
- 130
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
MC COOK is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, serving 280 people from surface water.
As of August 1, 2026, its federal record holds 2 entries between 1996 and 2018, all of which EPA lists as closed. Nothing has been added since 2018.
All 2 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 the Lead and Copper Rule and the Total Coliform Rules.
Violation history
Lead Consumer Notice
—Lead and Copper Rule
December 30, 2018 – January 23, 2019
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
November 1, 1996 – November 30, 1996
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 |
|---|---|---|---|---|
| December 30, 2018 – January 23, 2019 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| November 1, 1996 – November 30, 1996 | 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
- January 23, 2019State Compliance achieved1 linked violation
- January 16, 2019State Violation/Reminder Notice1 linked violation
- January 18, 1997State Violation/Reminder Notice1 linked violation
- January 18, 1997State Public Notification requested1 linked violation
Common questions
Is MC COOK required to publish a Consumer Confidence Report?
- Yes. MC COOK 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 MC COOK’s next Consumer Confidence Report due?
- MC COOK’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MC COOK have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MC COOK.
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
BOTICA, RENEE
708-447-9030
MCCOOK, IL 60525