Is DES PLAINES required to publish a Consumer Confidence Report?

Yes. DES PLAINES 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 DES PLAINES’s next Consumer Confidence Report due?

DES PLAINES’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.

DES PLAINES, IL · Cook County

DES PLAINES Water System

Consumer Confidence Report status

DES PLAINES 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 3 items for DES PLAINES that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): IL0310630
System type: Community Water System
Population served: 60,675
Service connections: 17,080
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

DES PLAINES is among the 22 largest community water systems in Illinois, serving 60,675 people from surface water.

As of August 1, 2026, its federal record holds 6 entries between 1977 and 2026, of which 3 remain open; none are health-based.

Of the 6, 4 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, the Consumer Confidence Rule, and the Radionuclides and Revised Rad Rule.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2026
Unaddressed
Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025 – July 2, 2025
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2024
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – July 31, 2018
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Unaddressed no corrective action on record yetResolved 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, 2026	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
July 2, 2025 – July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Resolved
July 1, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
October 1, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
July 1, 2018 – July 31, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

January 27, 2026State Public Notification requested1 linked violation
January 27, 2026State Violation/Reminder Notice1 linked violation
October 11, 2025State Public Notification received1 linked violation
July 29, 2025State Violation/Reminder Notice2 linked violations
July 3, 2025State Violation/Reminder Notice5 linked violations
July 2, 2025State Compliance achieved1 linked violation
October 12, 2024State Public Notification requested5 linked violations
September 1, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 1, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Common questions

Is DES PLAINES required to publish a Consumer Confidence Report?: Yes. DES PLAINES 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 DES PLAINES’s next Consumer Confidence Report due?: DES PLAINES’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DES PLAINES have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 3 items for DES PLAINES that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

WATKINS, TIMOTHY

847-391-5468

DES PLAINES, IL 60016