Is PERU required to publish a Consumer Confidence Report?

Yes. PERU 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 PERU’s next Consumer Confidence Report due?

PERU’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.

PERU, IL · LaSalle County

PERU Water System

Consumer Confidence Report status

PERU 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 PERU.

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): IL0990850
System type: Community Water System
Population served: 10,300
Service connections: 5,022
Ownership: local government
Water source: groundwater (wells)

PERU is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 10,300 people from groundwater.

As of August 1, 2026, its federal record holds 8 entries between 1977 and 2025, all of which EPA lists as closed.

Of the 8, 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 the Lead and Copper Rule, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Public Notice Rule and Revised PN Rule.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
August 22, 2025 – August 22, 2025
Resolved
Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025 – December 16, 2025
Resolved
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – April 11, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2012 – September 19, 2012
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
December 7, 1992 – January 24, 1994
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
August 22, 2025 – August 22, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 2, 2025 – December 16, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Resolved
October 17, 2024 – April 11, 2025	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Resolved
June 1, 2023 – June 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2012 – September 19, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
December 7, 1992 – January 24, 1994	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	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 16, 2025State Compliance achieved1 linked violation
September 24, 2025State Violation/Reminder Notice1 linked violation
August 28, 2025State Public Notification received1 linked violation
August 28, 2025State Public Notification received1 linked violation
August 22, 2025State Compliance achieved1 linked violation
July 22, 2025State Violation/Reminder Notice1 linked violation
July 22, 2025State Public Notification requested1 linked violation
July 3, 2025State Violation/Reminder Notice1 linked violation
July 3, 2025State Public Notification requested1 linked violation
April 11, 2025State Compliance achieved1 linked violation
June 12, 2024State Public Notification received2 linked violations
June 12, 2024State Public Notification received2 linked violations
August 15, 2023State Public Notification requested1 linked violation
August 15, 2023State Violation/Reminder Notice1 linked violation
August 15, 2023State Public Notification requested1 linked violation
August 15, 2023State Violation/Reminder Notice1 linked violation
July 28, 2023State Compliance achieved1 linked violation
July 28, 2023State Compliance achieved1 linked violation
September 12, 2012State Violation/Reminder Notice1 linked violation
March 29, 1994State Violation/Reminder Notice1 linked violation
March 29, 1994State Public Notification requested1 linked violation
January 24, 1994State Compliance achieved1 linked violation
December 6, 1993State Compliance achieved1 linked violation

Common questions

Is PERU required to publish a Consumer Confidence Report?: Yes. PERU 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 PERU’s next Consumer Confidence Report due?: PERU’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does PERU have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for PERU.
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

CARLS, ERIC

815-224-6020

PERU, IL 61354