Is ILIUM VALLEY WS required to publish a Consumer Confidence Report?

Yes. ILIUM VALLEY WS 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 ILIUM VALLEY WS’s next Consumer Confidence Report due?

ILIUM VALLEY WS’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.

RIDGWAY, CO · San Miguel County

ILIUM VALLEY WS Water System

Consumer Confidence Report status

ILIUM VALLEY WS 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 ILIUM VALLEY WS.

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 Colorado’s official records. Always confirm current status with Colorado before making decisions based on this information.

System facts

System ID (PWSID): CO0157250
System type: Community Water System
Population served: 322
Service connections: 74
Ownership: privately owned
Water source: groundwater (wells)

ILIUM VALLEY WS is one of 1,060 community water systems in Colorado in the 500 or fewer people size category, serving 322 people from groundwater.

As of August 1, 2026, its federal record holds 21 entries between 1999 and 2026, all of which EPA lists as closed.

Of the 21, 18 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 Stage 1 Disinfectants and Disinfection Byproducts Rule, the Total Coliform Rules, and the Public Notice Rule and Revised PN Rule.

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2026 – February 5, 2026
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2026 – January 31, 2026
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2023 – December 31, 2023
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
November 6, 2018 – June 25, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2017 – November 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2017 – December 31, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – June 29, 2017
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2016 – March 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2015 – September 30, 2015
Resolved
Treatment Technique No Certif. Operator
Health-based
Stage 1 Disinfectants and Disinfection Byproducts Rule
January 1, 2015 – October 5, 2016
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2014 – April 30, 2014
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2011 – September 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2011 – July 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2007 – April 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2007 – June 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2007 – December 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2000 – November 30, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2000 – February 29, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1999 – October 31, 1999
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2026 – February 5, 2026	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2026 – January 31, 2026	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
November 6, 2018 – June 25, 2019	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
November 1, 2017 – November 30, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2016 – June 29, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
March 1, 2016 – March 31, 2016	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2015 – October 5, 2016	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-based	Resolved
April 1, 2014 – June 30, 2014	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2014 – April 30, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2011 – July 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2007 – April 30, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring and Reporting (DBP)	TTHM	—	Resolved
November 1, 2000 – November 30, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2000 – February 29, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1999 – October 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

February 17, 2026State Public Notification requested4 linked violations
January 2, 2024State Compliance achieved5 linked violations
January 4, 2018State Violation/Reminder Notice2 linked violations
January 4, 2018State Violation/Reminder Notice1 linked violation
October 5, 2016State Compliance achieved3 linked violations
July 22, 2016State Public Notification requested1 linked violation
July 22, 2016State Violation/Reminder Notice1 linked violation
July 22, 2016State Violation/Reminder Notice1 linked violation
May 6, 2016State Public Notification requested1 linked violation
October 9, 2015State Public Notification requested22 linked violations
June 6, 2014State Public Notification requested1 linked violation
June 6, 2014State Public Notification requested1 linked violation
September 6, 2011State Violation/Reminder Notice3 linked violations
September 6, 2011State Violation/Reminder Notice23 linked violations
July 24, 2008State Compliance achieved1 linked violation
March 5, 2008State Public Notification received1 linked violation
February 12, 2008State Compliance achieved2 linked violations
December 19, 2007State Violation/Reminder Notice3 linked violations
July 5, 2007State Public Notification received5 linked violations
June 8, 2007State Violation/Reminder Notice3 linked violations
June 8, 2007State Public Notification requested2 linked violations
August 4, 2000State Formal Notice of Violation issued2 linked violations
August 4, 2000State Public Notification requested1 linked violation
March 28, 2000State Public Notification requested2 linked violations
November 30, 1999State Public Notification requested3 linked violations
January 28, 1998State Public Notification requested1 linked violation

Common questions

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

BOLANE, CHRIS

970-318-1803

RIDGWAY, CO 81432