ANTONITO, CO · Conejos County

ANTONITO TOWN OF 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): CO0111100
System type: Community Water System
Population served: 981
Service connections: 435
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2025 – November 30, 2025
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
November 1, 2025 – December 17, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2025 – December 17, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2025 – July 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2025 – August 15, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2025 – July 31, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2025 – January 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2025 – February 12, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2025 – January 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2024 – September 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2024 – March 31, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2023 – September 30, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2023 – September 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2023 – September 8, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2022 – December 31, 2022
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
November 25, 2021 – June 10, 2022
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
August 27, 2020 – June 17, 2021
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
Benzene
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 2020 – September 30, 2020
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2020 – October 1, 2020
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2020 – September 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2020 – June 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2020 – June 30, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 17, 2020 – June 9, 2020
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2020 – October 1, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
November 17, 2019 – June 9, 2020
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
October 1, 2019 – November 19, 2019
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2019 – October 1, 2020
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2019 – August 11, 2019
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
July 1, 2019 – September 30, 2020
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019 – August 28, 2019
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2019 – November 19, 2019
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2018 – December 31, 2018
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 2018 – May 31, 2018
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2018 – April 30, 2018
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 2018 – April 30, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
November 2, 2017 – June 20, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2017 – December 31, 2017
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2017 – November 2, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2017 – May 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2017 – June 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2017 – June 30, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2017 – April 30, 2017
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
March 1, 2017 – March 31, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 2, 2016 – September 5, 2017
Resolved
Treatment Technique No Certif. Operator
Health-based
Stage 1 Disinfectants and Disinfection Byproducts Rule
November 1, 2016 – December 5, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2016 – December 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 – September 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2015 – December 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2014 – December 31, 2014
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 5, 2013 – February 28, 2014
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2013 – October 6, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2013 – September 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2012 – December 31, 2012
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2012 – September 30, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 10, 2012 – September 4, 2013
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Nickel
January 1, 2011 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2011 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Endrin
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Diquat
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Endothall
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Simazine
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Picloram
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
LASSO
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Benzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Toluene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Styrene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Barium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Chromium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Mercury
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2009 – November 30, 2009
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1993 – December 31, 1993
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2025 – November 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2025 – December 17, 2025	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2025 – December 17, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2025 – July 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2025 – August 15, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2025 – July 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2025 – January 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2025 – February 12, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2025 – January 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
September 1, 2023 – September 30, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2023 – September 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2023 – September 8, 2023	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
December 1, 2022 – December 31, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 25, 2021 – June 10, 2022	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
August 27, 2020 – June 17, 2021	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	CHLOROBENZENE	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	Benzene	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 2020 – October 1, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2020 – June 30, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2020 – June 30, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
February 17, 2020 – June 9, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2020 – October 1, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
November 17, 2019 – June 9, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2019 – November 19, 2019	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2019 – October 1, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2019 – August 11, 2019	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
July 1, 2019 – September 30, 2020	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
July 1, 2019 – August 28, 2019	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2019 – November 19, 2019	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2018 – December 31, 2018	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
May 1, 2018 – May 31, 2018	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 2018 – April 30, 2018	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2018 – April 30, 2018	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
November 2, 2017 – June 20, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Archived
July 1, 2017 – November 2, 2017	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2017 – April 30, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
March 1, 2017 – March 31, 2017	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
December 2, 2016 – September 5, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
November 1, 2016 – December 5, 2016	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-based	Resolved
October 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2016 – July 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2014 – December 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
December 5, 2013 – February 28, 2014	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2013 – October 6, 2014	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
September 1, 2013 – September 30, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2012 – December 31, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2012 – September 30, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
June 10, 2012 – September 4, 2013	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Nickel	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Endrin	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Diquat	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Endothall	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Simazine	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Picloram	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	LASSO	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Benzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Toluene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Styrene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Barium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Chromium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Mercury	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Thallium, Total	—	Resolved
November 1, 2009 – November 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

December 17, 2025State Compliance achieved5 linked violations
December 16, 2025State Violation/Reminder Notice2 linked violations
December 16, 2025State Public Notification requested2 linked violations
December 16, 2025State Public Notification requested1 linked violation
December 16, 2025State Violation/Reminder Notice1 linked violation
August 15, 2025State Public Notification requested1 linked violation
August 15, 2025State Compliance achieved3 linked violations
August 15, 2025State Violation/Reminder Notice2 linked violations
February 12, 2025State Public Notification requested2 linked violations
February 12, 2025State Public Notification requested2 linked violations
February 12, 2025State Public Notification requested2 linked violations
October 29, 2024State Public Notification requested2 linked violations
June 27, 2024State Public Notification received4 linked violations
June 19, 2024State Compliance achieved1 linked violation
April 25, 2024State Violation/Reminder Notice1 linked violation
April 25, 2024State Public Notification requested3 linked violations
October 17, 2023State Violation/Reminder Notice1 linked violation
October 17, 2023State Public Notification requested2 linked violations
October 17, 2023State Public Notification requested4 linked violations
October 5, 2023State Compliance achieved4 linked violations
February 8, 2023State Compliance achieved3 linked violations
January 19, 2023State Violation/Reminder Notice1 linked violation
January 19, 2023State Public Notification requested1 linked violation
January 19, 2023State Public Notification requested2 linked violations
January 19, 2023State Violation/Reminder Notice1 linked violation
June 10, 2022State Compliance achieved16 linked violations
December 9, 2021State Violation/Reminder Notice2 linked violations
June 18, 2021State Public Notification received1 linked violation
June 17, 2021State Compliance achieved1 linked violation
November 19, 2020State Compliance achieved21 linked violations
October 29, 2020State Violation/Reminder Notice21 linked violations
October 29, 2020State Public Notification requested21 linked violations
October 1, 2020State Compliance achieved3 linked violations
August 10, 2020State Compliance achieved3 linked violations
August 4, 2020State Public Notification requested2 linked violations
August 4, 2020State Violation/Reminder Notice1 linked violation
June 25, 2020State Public Notification requested2 linked violations
June 25, 2020State Violation/Reminder Notice2 linked violations
June 9, 2020State Compliance achieved2 linked violations
February 7, 2020State Public Notification requested2 linked violations
December 13, 2019State Violation/Reminder Notice2 linked violations
November 19, 2019State Public Notification requested2 linked violations
November 19, 2019State Violation/Reminder Notice1 linked violation
November 19, 2019State Compliance achieved3 linked violations
August 28, 2019State Compliance achieved2 linked violations
August 11, 2019State Compliance achieved2 linked violations
August 1, 2019State Public Notification requested1 linked violation
August 1, 2019State Violation/Reminder Notice1 linked violation
July 17, 2019State Violation/Reminder Notice1 linked violation
July 17, 2019State Public Notification requested1 linked violation
July 17, 2019State Violation/Reminder Notice1 linked violation
July 17, 2019State Public Notification requested2 linked violations
July 17, 2019State Public Notification requested1 linked violation
July 17, 2019State Violation/Reminder Notice2 linked violations
April 3, 2019State Public Notification requested1 linked violation
April 3, 2019State Violation/Reminder Notice1 linked violation
January 29, 2019State Violation/Reminder Notice1 linked violation
January 29, 2019State Public Notification requested2 linked violations
August 17, 2018State Compliance achieved1 linked violation
August 9, 2018State Compliance achieved3 linked violations
August 1, 2018State Compliance achieved1 linked violation
June 28, 2018State Compliance achieved1 linked violation
June 20, 2018State Public Notification received1 linked violation
June 20, 2018State Public Notification received1 linked violation
June 20, 2018State Public Notification received1 linked violation
June 20, 2018State Compliance achieved1 linked violation
June 20, 2018State Public Notification received1 linked violation
June 20, 2018State Public Notification received1 linked violation
June 20, 2018State Public Notification received1 linked violation
June 20, 2018State Compliance achieved1 linked violation
June 18, 2018State Public Notification requested1 linked violation
June 18, 2018State Violation/Reminder Notice1 linked violation
May 30, 2018State Public Notification requested1 linked violation
May 30, 2018State Public Notification requested1 linked violation
May 30, 2018State Violation/Reminder Notice1 linked violation
May 30, 2018State Public Notification requested1 linked violation
May 30, 2018State Violation/Reminder Notice1 linked violation
May 30, 2018State Violation/Reminder Notice1 linked violation
May 18, 2018State Public Notification requested1 linked violation
May 18, 2018State Violation/Reminder Notice1 linked violation
April 2, 2018State Public Notification requested1 linked violation
April 2, 2018State Violation/Reminder Notice1 linked violation
February 1, 2018State Compliance achieved3 linked violations
January 1, 2018State Compliance achieved1 linked violation
December 29, 2017State Public Notification requested2 linked violations
December 29, 2017State Public Notification requested3 linked violations
December 29, 2017State Violation/Reminder Notice3 linked violations
December 29, 2017State Violation/Reminder Notice2 linked violations
December 12, 2017State Violation/Reminder Notice1 linked violation
November 2, 2017State Compliance achieved1 linked violation
October 2, 2017State Public Notification requested1 linked violation
October 2, 2017State Violation/Reminder Notice1 linked violation
September 5, 2017State Public Notification received1 linked violation
September 5, 2017State Compliance achieved1 linked violation
September 1, 2017State Compliance achieved2 linked violations
August 2, 2017State Compliance achieved4 linked violations
July 31, 2017State Public Notification requested1 linked violation
July 31, 2017State Violation/Reminder Notice1 linked violation
July 7, 2017State Public Notification requested2 linked violations
July 7, 2017State Violation/Reminder Notice2 linked violations
July 5, 2017State Violation/Reminder Notice1 linked violation
July 5, 2017State Public Notification requested1 linked violation
June 5, 2017State Violation/Reminder Notice1 linked violation
June 5, 2017State Public Notification requested1 linked violation
April 28, 2017State Public Notification requested2 linked violations
April 28, 2017State Violation/Reminder Notice2 linked violations
April 12, 2017State Compliance achieved2 linked violations
March 1, 2017State Compliance achieved1 linked violation
January 22, 2017State Public Notification received1 linked violation
January 22, 2017State Compliance achieved1 linked violation
January 17, 2017State Violation/Reminder Notice1 linked violation
January 17, 2017State Violation/Reminder Notice1 linked violation
January 5, 2017State Violation/Reminder Notice2 linked violations
January 5, 2017State Public Notification requested2 linked violations
December 5, 2016State Compliance achieved1 linked violation
November 1, 2016State Violation/Reminder Notice1 linked violation
November 1, 2016State Public Notification requested1 linked violation
October 3, 2016State Compliance achieved3 linked violations
August 31, 2016State Public Notification requested4 linked violations
August 31, 2016State Violation/Reminder Notice3 linked violations
July 15, 2016State Compliance achieved4 linked violations
May 6, 2016State Compliance achieved1 linked violation
May 2, 2016State Compliance achieved3 linked violations
April 11, 2016State Violation/Reminder Notice1 linked violation
April 4, 2016State Public Notification requested2 linked violations
April 4, 2016State Violation/Reminder Notice3 linked violations
December 31, 2015State Violation/Reminder Notice2 linked violations
December 31, 2015State Public Notification requested2 linked violations
November 20, 2015State Public Notification requested1 linked violation
November 20, 2015State Violation/Reminder Notice2 linked violations
July 8, 2015State Public Notification requested2 linked violations
July 8, 2015State Violation/Reminder Notice2 linked violations
June 12, 2015State Administrative/Compliance Order without penalty issued1 linked violation
May 4, 2015State Compliance achieved2 linked violations
March 3, 2015State Compliance achieved2 linked violations
January 6, 2015State Public Notification received1 linked violation
December 31, 2014State Violation/Reminder Notice2 linked violations
December 31, 2014State Public Notification requested2 linked violations
November 13, 2014State Public Notification received1 linked violation
October 7, 2014State Violation/Reminder Notice1 linked violation
October 7, 2014State Public Notification requested1 linked violation
October 6, 2014State Compliance achieved1 linked violation
September 30, 2014State Compliance achieved63 linked violations
September 15, 2014State Compliance achieved2 linked violations
September 2, 2014State Public Notification requested1 linked violation
September 2, 2014State Violation/Reminder Notice1 linked violation
May 7, 2014State Compliance achieved4 linked violations
May 7, 2014State Compliance achieved6 linked violations
February 28, 2014State Compliance achieved1 linked violation
February 28, 2014State Public Notification received1 linked violation
February 7, 2014State Public Notification requested31 linked violations
February 7, 2014State Public Notification requested1 linked violation
February 7, 2014State Violation/Reminder Notice1 linked violation
February 7, 2014State Public Notification requested10 linked violations
February 7, 2014State Violation/Reminder Notice10 linked violations
February 7, 2014State Public Notification requested21 linked violations
February 7, 2014State Violation/Reminder Notice21 linked violations
February 7, 2014State Violation/Reminder Notice31 linked violations
December 31, 2013State Compliance achieved1 linked violation
November 8, 2013State Public Notification requested2 linked violations
November 8, 2013State Violation/Reminder Notice2 linked violations
November 8, 2013State Public Notification requested1 linked violation
November 8, 2013State Violation/Reminder Notice1 linked violation
November 7, 2013State Violation/Reminder Notice1 linked violation
November 7, 2013State Violation/Reminder Notice1 linked violation
November 7, 2013State Public Notification requested1 linked violation
November 7, 2013State Public Notification requested1 linked violation
November 4, 2013State Violation/Reminder Notice1 linked violation
November 4, 2013State Public Notification requested1 linked violation
October 31, 2013State Compliance achieved1 linked violation
October 8, 2013State Administrative/Compliance Order without penalty issued9 linked violations
September 6, 2013State Public Notification requested1 linked violation
September 6, 2013State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 6, 2013State Violation/Reminder Notice1 linked violation
September 4, 2013State Compliance achieved1 linked violation
September 4, 2013State Public Notification received1 linked violation
June 1, 2013State Public Notification received5 linked violations
April 15, 2013State Public Notification requested1 linked violation
April 15, 2013State Public Notification requested1 linked violation
April 15, 2013State Violation/Reminder Notice1 linked violation
April 15, 2013State Violation/Reminder Notice1 linked violation
February 15, 2013State Public Notification requested1 linked violation
February 15, 2013State Public Notification requested1 linked violation
February 15, 2013State Violation/Reminder Notice1 linked violation
February 15, 2013State Violation/Reminder Notice1 linked violation
February 11, 2013State Public Notification requested1 linked violation
February 11, 2013State Violation/Reminder Notice1 linked violation
September 17, 2012State Public Notification requested1 linked violation
September 17, 2012State Violation/Reminder Notice1 linked violation
September 17, 2012State Public Notification requested1 linked violation
September 17, 2012State Violation/Reminder Notice1 linked violation
June 26, 2012State Public Notification received1 linked violation
May 10, 2012State Violation/Reminder Notice1 linked violation
May 10, 2012State Public Notification requested1 linked violation
May 12, 2010State Compliance achieved1 linked violation
April 5, 2010State Compliance achieved1 linked violation
January 19, 2010State Public Notification received1 linked violation
January 7, 2010State Violation/Reminder Notice2 linked violations
May 21, 2008State Compliance achieved22 linked violations
August 17, 2007State Compliance achieved2 linked violations
August 10, 2007State Violation/Reminder Notice1 linked violation
February 14, 2007State Violation/Reminder Notice1 linked violation
October 3, 2005State Violation/Reminder Notice1 linked violation
October 3, 2005State Public Notification requested1 linked violation
March 1, 2005State Compliance achieved1 linked violation
February 21, 2005State Violation/Reminder Notice1 linked violation
February 21, 2005State Public Notification requested1 linked violation
March 6, 1995State Intentional no-action1 linked violation
March 6, 1995State Public Notification requested1 linked violation
April 20, 1994State Compliance achieved2 linked violations

Contact

DURAN, ROSSI

719-298-6114

ANTONITO, CO 81120