ROCKY FORD, CO · Otero County

PATTERSON VALLEY WC 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): CO0145540
System type: Community Water System
Population served: 96
Service connections: 42
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2025 – September 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2025 – June 30, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2025 – March 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2025 – March 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2024 – September 30, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2024 – June 30, 2024
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2024 – March 31, 2024
Archived
Monitoring, Regular
—
Nitrate
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2024 – March 31, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2023 – March 21, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2023 – March 31, 2023
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2022 – December 31, 2022
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2022 – September 30, 2022
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2022 – June 30, 2022
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2022 – June 30, 2022
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2022 – March 31, 2022
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2022 – March 31, 2022
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2021 – December 31, 2021
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2021 – September 30, 2021
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2021 – September 30, 2021
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2021 – June 30, 2021
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2021 – March 31, 2021
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2021 – March 31, 2021
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2020 – October 13, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2020 – December 31, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2020 – December 31, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2020 – September 30, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2020 – September 30, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2020 – June 30, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2020 – June 30, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2020 – March 31, 2020
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
January 1, 2020 – January 25, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2020 – March 31, 2020
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2019 – December 31, 2019
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2019 – October 26, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2019 – December 31, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2019 – September 30, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2019 – June 30, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2019 – June 30, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2019 – March 31, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2019 – March 31, 2019
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2018 – December 31, 2018
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2018 – December 31, 2018
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2018 – September 30, 2018
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2018 – June 30, 2018
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2018 – June 30, 2018
Archived
Monitoring, Regular
—
Combined Uranium
April 1, 2018 – June 30, 2018
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2018 – March 31, 2018
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2018 – March 31, 2018
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2017 – December 31, 2017
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2016 – December 31, 2016
Archived
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2016 – March 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2014 – December 31, 2014
Archived
Monitoring, Regular
—
Selenium
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Nickel
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Mercury
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2014 – December 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2013 – December 31, 2013
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2011 – December 31, 2011
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2009 – December 31, 2009
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2008 – December 31, 2008
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2007 – December 31, 2007
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1994 – August 31, 1994
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 1994 – December 31, 1997
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
July 1, 1991 – July 31, 1991
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 1, 2025 – June 30, 2025	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2024 – December 31, 2024	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2023 – March 21, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2023 – March 31, 2023	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 2022 – December 31, 2022	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
July 1, 2022 – September 30, 2022	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
April 1, 2022 – June 30, 2022	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 1, 2022 – June 30, 2022	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2022 – March 31, 2022	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2022 – March 31, 2022	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
October 1, 2021 – December 31, 2021	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
July 1, 2021 – September 30, 2021	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
July 1, 2021 – September 30, 2021	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 1, 2021 – June 30, 2021	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 2020 – October 13, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2020 – January 25, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
October 1, 2019 – October 26, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
April 1, 2018 – June 30, 2018	Monitoring, Regular	Combined Uranium	—	Resolved
April 1, 2018 – June 30, 2018	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2016 – March 31, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2015 – December 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2014 – December 31, 2016	Monitoring, Regular	Selenium	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Nickel	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Mercury	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
January 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
January 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
August 1, 1994 – August 31, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1994 – December 31, 1997	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Archived
July 1, 1991 – July 31, 1991	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived

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

Enforcement actions

December 18, 2025State Violation/Reminder Notice6 linked violations
October 3, 2025State Violation/Reminder Notice7 linked violations
May 8, 2025State Violation/Reminder Notice6 linked violations
January 15, 2025State Public Notification requested24 linked violations
December 10, 2024State Violation/Reminder Notice8 linked violations
October 15, 2024State Violation/Reminder Notice11 linked violations
August 6, 2024State Compliance achieved5 linked violations
May 6, 2024State Compliance achieved9 linked violations
May 1, 2024State Public Notification requested26 linked violations
May 1, 2024State Violation/Reminder Notice25 linked violations
May 1, 2024State Public Notification requested24 linked violations
January 18, 2022State Violation/Reminder Notice52 linked violations
October 13, 2020State Compliance achieved25 linked violations
January 25, 2020State Compliance achieved25 linked violations
July 18, 2019State Violation/Reminder Notice35 linked violations
November 27, 2018State Violation/Reminder Notice9 linked violations
August 16, 2018State Public Notification requested7 linked violations
August 16, 2018State Violation/Reminder Notice32 linked violations
January 4, 2018State Administrative/Compliance Order without penalty issued37 linked violations
November 30, 2017State Compliance achieved14 linked violations
September 27, 2017State Public Notification requested37 linked violations
February 10, 2017State Public Notification requested12 linked violations
December 5, 2016State Public Notification requested6 linked violations
December 5, 2016State Public Notification requested3 linked violations
September 26, 2016State Public Notification received4 linked violations
May 10, 2016State Public Notification requested3 linked violations
March 26, 2016State Public Notification received5 linked violations
September 28, 2015State Public Notification received6 linked violations
May 19, 2015State Violation/Reminder Notice4 linked violations
March 30, 2015State Public Notification received4 linked violations
May 29, 2014State Public Notification requested5 linked violations
March 26, 2014State Public Notification received18 linked violations
June 26, 2013State Public Notification received7 linked violations
April 3, 2013State Public Notification received5 linked violations
July 26, 2012State Public Notification requested35 linked violations
December 6, 2011State Violation/Reminder Notice4 linked violations
July 1, 2011State Public Notification received3 linked violations
October 4, 2010State Public Notification received2 linked violations
April 13, 2010State Public Notification requested2 linked violations
April 13, 2010State Public Notification requested6 linked violations
April 13, 2010State Violation/Reminder Notice1 linked violation
November 7, 2007State Violation/Reminder Notice4 linked violations
April 15, 2007State Public Notification received8 linked violations
November 26, 1999State Administrative/Compliance Order without penalty issued23 linked violations
September 26, 1997State Public Notification received3 linked violations
September 16, 1994State Public Notification requested2 linked violations
March 10, 1991State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Contact

PROCTOR, KELCIE

719-468-0038

ROCKY FORD, CO 81067