Is LAFAYETTE CITY OF required to publish a Consumer Confidence Report?

Yes. LAFAYETTE CITY 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 LAFAYETTE CITY OF’s next Consumer Confidence Report due?

LAFAYETTE CITY 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.

LAFAYETTE, CO · Boulder County

LAFAYETTE CITY OF Water System

Consumer Confidence Report status

LAFAYETTE CITY 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 LAFAYETTE CITY 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): CO0107473
System type: Community Water System
Population served: 28,700
Service connections: 9,666
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

LAFAYETTE CITY OF is one of 87 community water systems in Colorado in the 10,001 to 100,000 people size category, serving 28,700 people from surface water.

As of August 1, 2026, its federal record holds 29 entries between 1995 and 2025, all of which EPA lists as closed.

Of the 29, 26 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 synthetic organic chemicals, the Surface Water Treatment Rules, and inorganic chemicals.

Violation history

Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2025 – December 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2025 – August 12, 2025
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
July 1, 2025 – August 12, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2025 – July 31, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2021 – July 14, 2021
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
July 1, 2020 – July 31, 2020
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2018 – April 3, 2018
Resolved
Monitoring, Regular
—
Nickel
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Chromium
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Barium
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
December 1, 2016 – December 31, 2016
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
November 1, 2016 – November 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
October 1, 2013 – October 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Simazine
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Endrin
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2005 – December 31, 2007
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 1995 – May 31, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 2025 – December 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2025 – August 12, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2025 – August 12, 2025	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2025 – July 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2021 – July 14, 2021	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2020 – July 31, 2020	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2018 – April 3, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Nickel	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Chromium	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Barium	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Arsenic	—	Resolved
December 1, 2016 – December 31, 2016	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
November 1, 2016 – November 30, 2016	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2013 – October 31, 2013	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Simazine	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Endrin	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
May 1, 1995 – May 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 16, 2026State Public Notification requested4 linked violations
January 16, 2026State Public Notification requested3 linked violations
August 14, 2025State Violation/Reminder Notice2 linked violations
August 14, 2025State Public Notification requested1 linked violation
August 12, 2025State Compliance achieved3 linked violations
July 14, 2021State Public Notification requested2 linked violations
July 14, 2021State Compliance achieved1 linked violation
October 1, 2020State Compliance achieved2 linked violations
August 18, 2020State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 18, 2020State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 18, 2020State Public Notification requested1 linked violation
August 18, 2020State Violation/Reminder Notice1 linked violation
December 20, 2019State Compliance achieved1 linked violation
November 8, 2019State Public Notification requested2 linked violations
June 28, 2018State Public Notification received16 linked violations
April 3, 2018State Public Notification received33 linked violations
January 31, 2018State Public Notification requested12 linked violations
January 31, 2018State Violation/Reminder Notice11 linked violations
January 23, 2018State Compliance achieved11 linked violations
January 18, 2018State Violation/Reminder Notice32 linked violations
March 9, 2017State Public Notification requested2 linked violations
March 9, 2017State Violation/Reminder Notice3 linked violations
March 9, 2017State Public Notification requested4 linked violations
March 31, 2016State Compliance achieved2 linked violations
November 3, 2015State Public Notification requested4 linked violations
May 1, 2014State Compliance achieved3 linked violations
October 11, 2013State Boil Water Order3 linked violations
September 16, 2009State Compliance achieved32 linked violations
August 5, 2008State Public Notification received37 linked violations
February 12, 2008State Public Notification requested32 linked violations
February 12, 2008State Violation/Reminder Notice31 linked violations
October 30, 2007State Public Notification requested10 linked violations
October 30, 2007State Violation/Reminder Notice1 linked violation
October 16, 1997State Public Notification requested1 linked violation
June 9, 1995State Formal Notice of Violation issued2 linked violations

Common questions

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

ARTHUR, JEFF

303-661-1282

LAFAYETTE, CO 80026