MANCOS, CO · Montezuma County

MANCOS RURAL WATER COMPANY Water System

Current status

2 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): CO0142600
System type: Community Water System
Population served: 1,300
Service connections: 723
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2025 – November 30, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2025 – November 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2025 – December 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2025 – December 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2025 – December 31, 2025
Resolved
Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2025 – September 30, 2025
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
February 13, 2024
Unaddressed
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2019 – December 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2019 – June 30, 2019
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2018 – October 31, 2018
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2018 – September 30, 2018
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2018 – September 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
October 1, 2017 – October 24, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
February 1, 2009 – February 28, 2009
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Barium
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Chromium
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Mercury
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Selenium
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Nickel
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Source Water (LT2)
—
Long Term 2 Enhanced Surface Water Treatment Rule
July 1, 2008 – October 29, 2008
Resolved
Monitoring, Routine (IDSE)
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
April 1, 2008 – December 1, 2008
Resolved
Monitoring, Regular
—
Styrene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Benzene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Toluene
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2008 – December 31, 2008
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2007 – November 1, 2010
Resolved
Monitoring, Regular
—
Styrene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Toluene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Benzene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2005 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 1995 – December 31, 1995
Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2025 – November 30, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 1, 2025 – November 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
July 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
February 13, 2024	Public Notification Violation without NPDWR Violation	Public Notice	—	Unaddressed
October 1, 2019 – December 31, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2018 – October 31, 2018	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2018 – September 30, 2018	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2018 – September 30, 2018	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2017 – October 24, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
February 1, 2009 – February 28, 2009	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Barium	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Chromium	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Mercury	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Selenium	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Nickel	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Thallium, Total	—	Resolved
July 1, 2008 – October 29, 2008	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2008 – December 1, 2008	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Styrene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Benzene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Toluene	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2007 – November 1, 2010	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Styrene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Toluene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Benzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
August 1, 2004 – August 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1995 – December 31, 1995	Monitoring, Regular	Nitrate-Nitrite	—	Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

January 14, 2026State Compliance achieved5 linked violations
January 7, 2026State Violation/Reminder Notice15 linked violations
August 8, 2025State Public Notification requested4 linked violations
August 7, 2025State Violation/Reminder Notice34 linked violations
February 5, 2025State Public Notification requested3 linked violations
December 26, 2024State Public Notification requested2 linked violations
January 25, 2024State Public Notification requested3 linked violations
January 23, 2024State Public Notification requested2 linked violations
January 10, 2024State Compliance achieved3 linked violations
March 2, 2020State Compliance achieved6 linked violations
July 17, 2019State Public Notification requested4 linked violations
October 16, 2018State Public Notification requested4 linked violations
October 24, 2017State Compliance achieved3 linked violations
July 1, 2010State Public Notification received14 linked violations
February 10, 2010State Public Notification requested15 linked violations
February 10, 2010State Violation/Reminder Notice13 linked violations
June 3, 2009State Public Notification requested5 linked violations
January 29, 2009State Public Notification requested24 linked violations
December 1, 2008State Compliance achieved2 linked violations
October 29, 2008State Public Notification requested2 linked violations
September 7, 2004State Public Notification received5 linked violations
February 28, 1996State Compliance achieved1 linked violation
February 13, 1996State Formal Notice of Violation issued1 linked violation
November 24, 1993State Public Notification requested1 linked violation
July 2, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record

Contact

JOHNSTON, DAVE

970-445-7885

MANCOS, CO 81328