Is LYONS TOWN OF required to publish a Consumer Confidence Report?

Yes. LYONS TOWN OF 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 LYONS TOWN OF’s next Consumer Confidence Report due?

LYONS TOWN OF’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.

LYONS, CO · Boulder County

LYONS TOWN OF Water System

Consumer Confidence Report status

LYONS TOWN OF 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 LYONS TOWN OF.

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): CO0107496
System type: Community Water System
Population served: 2,990
Service connections: 962
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

LYONS TOWN OF is one of 305 community water systems in Colorado in the 501 to 3,300 people size category, serving 2,990 people from surface water.

As of August 1, 2026, its federal record holds 8 entries between 1992 and 1999, all of which EPA lists as closed. Nothing has been added since 1999.

Of the 8, 3 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 Surface Water Treatment Rules, the Lead and Copper Rule, and the Total Coliform Rules.

Violation history

Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1999 – June 30, 1999
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 1998 – March 31, 1998
Resolved
OCCT/SOWT Treatment Installation/Demonstration
Health-based
Lead and Copper Rule
January 1, 1998 – December 7, 2000
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 1997 – May 31, 1997
Resolved
Public Education
Health-based
Lead and Copper Rule
January 1, 1997 – December 31, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1995 – July 31, 1995
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 1992 – December 31, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 1999 – June 30, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
March 1, 1998 – March 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 1998 – December 7, 2000	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Health-based	Resolved
May 1, 1997 – May 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 1997 – December 31, 1997	Public Education	Lead and Copper Rule	Health-based	Resolved
July 1, 1995 – July 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 1995 – December 31, 1995	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 1992 – December 31, 1995	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

August 16, 2010State Compliance achieved2 linked violations
November 6, 2009State Public Notification received3 linked violations
October 19, 2009State Public Notification requested1 linked violation
October 19, 2009State Violation/Reminder Notice1 linked violation
August 25, 2008State Compliance achieved25 linked violations
August 22, 2008State Violation/Reminder Notice7 linked violations
August 22, 2008State Public Notification requested2 linked violations
December 7, 2000State Compliance achieved2 linked violations
September 9, 1999State Public Notification requested2 linked violations
August 27, 1999State Public Notification requested75 linked violations
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
June 19, 1998State Administrative/Compliance Order without penalty issued3 linked violations
June 19, 1998State Administrative/Compliance Order without penalty issued2 linked violations
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
June 19, 1998State Administrative/Compliance Order without penalty issued2 linked violations
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
June 19, 1998State Administrative/Compliance Order without penalty issued1 linked violation
April 28, 1998State Public Notification requested1 linked violation
March 18, 1998State Public Notification requested1 linked violation
March 18, 1998State Public Notification requested1 linked violation
March 12, 1998State Public Notification requested3 linked violations
February 25, 1998State Formal Notice of Violation issued5 linked violations
February 25, 1998State Public Notification requested2 linked violations
September 12, 1997State Public Notification requested1 linked violation
July 30, 1997State Public Notification requested2 linked violations
May 13, 1997State Public Notification requested3 linked violations
September 12, 1996State Public Notification requested1 linked violation
July 17, 1996State Public Notification requested2 linked violations
March 25, 1996State Compliance achieved2 linked violations
March 4, 1996State Formal Notice of Violation issued1 linked violation
March 4, 1996State Public Notification requested1 linked violation
March 4, 1996State Formal Notice of Violation issued1 linked violation
September 20, 1993State Public Notification requested1 linked violation
September 20, 1993State Formal Notice of Violation issued3 linked violations

Common questions

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

SIMONSEN, VICTORIA

303-823-6622

LYONS, CO 80540