EVERGREEN, CO · Jefferson County

HIDDEN VALLEY WATER DISTRICT Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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): CO0130045
System type: Community Water System
Population served: 155
Service connections: 63
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2023 – November 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2014 – March 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 2001 – May 31, 2001
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2023 – November 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 1, 2001 – May 31, 2001	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

March 14, 2024State Public Notification requested25 linked violations
January 23, 2024State Violation/Reminder Notice13 linked violations
December 28, 2023State Violation/Reminder Notice4 linked violations
December 28, 2023State Violation/Reminder Notice4 linked violations
July 1, 2020State no longer subject to Rule5 linked violations
April 5, 2019State Boil Water Order2 linked violations
April 17, 2018State Public Notification requested3 linked violations
August 1, 2017State Compliance achieved11 linked violations
May 2, 2017State Administrative/Compliance Order without penalty issued2 linked violations
April 22, 2016State Administrative/Compliance Order without penalty issued6 linked violations
March 2, 2016State Violation/Reminder Notice2 linked violations
February 24, 2016State Public Notification received2 linked violations
February 4, 2016State Public Notification requested2 linked violations
February 4, 2016State Violation/Reminder Notice2 linked violations
February 1, 2016State Public Notification requested2 linked violations
October 26, 2015State Public Notification requested2 linked violations
August 4, 2015State Public Notification received2 linked violations
July 21, 2015State Violation/Reminder Notice1 linked violation
July 21, 2015State Public Notification requested1 linked violation
June 24, 2015State Public Notification received2 linked violations
March 30, 2015State Public Notification received6 linked violations
October 2, 2014State Public Notification received7 linked violations
June 30, 2014State Public Notification received4 linked violations
February 20, 2014State Violation/Reminder Notice2 linked violations
August 26, 2013State Public Notification received2 linked violations
August 25, 2013State Compliance achieved1 linked violation
September 27, 2012State Public Notification received1 linked violation
December 29, 2011State Public Notification received2 linked violations
October 4, 2011State Violation/Reminder Notice2 linked violations
October 4, 2011State Violation/Reminder Notice2 linked violations
October 4, 2011State Public Notification requested1 linked violation
October 4, 2011State Public Notification requested1 linked violation
October 4, 2011State Violation/Reminder Notice2 linked violations
October 4, 2011State Public Notification requested1 linked violation
March 4, 2011State Public Notification received1 linked violation
July 26, 2010State Administrative/Compliance Order without penalty issued9 linked violations
July 26, 2010State Public Notification received2 linked violations
July 6, 2010State Public Notification requested2 linked violations
July 6, 2010State Violation/Reminder Notice1 linked violation
July 6, 2010State Public Notification requested2 linked violations
July 6, 2010State Violation/Reminder Notice1 linked violation
April 13, 2010State Public Notification received2 linked violations
March 30, 2010State Violation/Reminder Notice1 linked violation
March 30, 2010State Public Notification requested5 linked violations
March 12, 2010State Public Notification received1 linked violation
February 22, 2010State Public Notification requested1 linked violation
February 22, 2010State Violation/Reminder Notice1 linked violation
August 5, 2009State Compliance achieved4 linked violations
February 2, 2009State Violation/Reminder Notice2 linked violations
January 15, 2009State Administrative/Compliance Order without penalty issued4 linked violations
December 1, 2008State Public Notification received2 linked violations
November 11, 2008State Public Notification requested2 linked violations
April 7, 2008State Compliance achieved6 linked violations
February 22, 2008State Violation/Reminder Notice2 linked violations
February 22, 2008State Public Notification requested1 linked violation
February 19, 2008State Compliance achieved1 linked violation
February 5, 2008State Compliance achieved3 linked violations
January 11, 2007State Compliance achieved17 linked violations
November 16, 2006State Compliance achieved2 linked violations
November 9, 2006State Public Notification requested13 linked violations
August 14, 2001State Public Notification requested1 linked violation
July 20, 1995State Public Notification requested2 linked violations
July 20, 1995State Formal Notice of Violation issued1 linked violation
September 12, 1994State Public Notification requested3 linked violations

Contact

SIMONSON, NICKI

303-674-3379

EVERGREEN, CO 80439