Is BUTTERMILK MD required to publish a Consumer Confidence Report?

Yes. BUTTERMILK MD 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 BUTTERMILK MD’s next Consumer Confidence Report due?

BUTTERMILK MD’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.

BASALT, CO · Pitkin County

BUTTERMILK MD Water System

Consumer Confidence Report status

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

System facts

System ID (PWSID): CO0149160
System type: Community Water System
Population served: 200
Service connections: 64
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

BUTTERMILK MD is one of 1,060 community water systems in Colorado in the 500 or fewer people size category, serving 200 people from surface water.

As of August 1, 2026, its federal record holds 21 entries between 2006 and 2025, of which 3 remain open; none are health-based.

Of the 21, 17 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 volatile organic chemicals, the Public Notice Rule and Revised PN Rule, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Public Notification Violation without NPDWR Violation
—
Public Notice
January 5, 2025
Addressed
Public Notification Violation without NPDWR Violation
—
Public Notice
October 5, 2024
Addressed
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
July 1, 2024 – August 20, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2024 – August 20, 2024
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
December 11, 2023
Addressed
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2022 – December 31, 2022
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
March 13, 2017 – August 25, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2016 – July 31, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2016 – July 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2016 – August 2, 2016
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2011 – September 30, 2011
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Styrene
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Benzene
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2007 – March 31, 2007
Resolved
Monitoring, Regular
—
Atrazine
October 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
April 1, 2006 – June 30, 2006
Resolved

Addressed corrective action reported, pending final confirmationResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 5, 2025	Public Notification Violation without NPDWR Violation	Public Notice	—	Addressed
October 5, 2024	Public Notification Violation without NPDWR Violation	Public Notice	—	Addressed
July 1, 2024 – August 20, 2024	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2024 – August 20, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
December 11, 2023	Public Notification Violation without NPDWR Violation	Public Notice	—	Addressed
January 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
March 13, 2017 – August 25, 2017	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 1, 2016 – July 31, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2016 – July 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2016 – August 2, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Styrene	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Benzene	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2007 – March 31, 2007	Monitoring, Regular	Beryllium, Total	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring, Regular	Atrazine	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved

Addressed corrective action reported, pending final confirmationResolved addressed and confirmed by the state

Enforcement actions

September 6, 2016State Public Notification requested48 linked violations
April 17, 2009State Violation/Reminder Notice71 linked violations
February 8, 2007State Public Notification requested717 linked violations

Common questions

Is BUTTERMILK MD required to publish a Consumer Confidence Report?: Yes. BUTTERMILK MD 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 BUTTERMILK MD’s next Consumer Confidence Report due?: BUTTERMILK MD’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does BUTTERMILK MD have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 3 items for BUTTERMILK MD 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

KORPELA, JAMES

970-273-3100

BASALT, CO 81621