CASTLE ROCK, CO · Douglas County

LOUVIERS WSD 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): CO0118035
System type: Community Water System
Population served: 238
Service connections: 113
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
May 10, 2024 – August 23, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2024 – June 30, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 4, 2024 – March 19, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2023 – September 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2021 – December 31, 2021
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 3, 2021 – May 25, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2020 – December 31, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2020 – August 25, 2020
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2020 – September 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2019 – September 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2019 – June 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Styrene
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Toluene
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Benzene
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Xylenes, Total
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Selenium
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Chromium
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1996 – June 30, 1996
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
May 10, 2024 – August 23, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
February 4, 2024 – March 19, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2021 – December 31, 2021	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 3, 2021 – May 25, 2021	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 11, 2020 – August 25, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Styrene	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Toluene	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Benzene	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Selenium	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Chromium	—	Resolved
June 1, 1996 – June 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

May 12, 2025State Compliance achieved7 linked violations
January 17, 2025State Public Notification received1 linked violation
January 14, 2025State Public Notification requested1 linked violation
January 14, 2025State Violation/Reminder Notice1 linked violation
October 17, 2024State Public Notification received1 linked violation
October 1, 2024State Public Notification requested1 linked violation
October 1, 2024State Violation/Reminder Notice1 linked violation
August 27, 2024State Public Notification received1 linked violation
August 23, 2024State Compliance achieved1 linked violation
August 22, 2024State Public Notification received1 linked violation
July 2, 2024State Violation/Reminder Notice1 linked violation
July 2, 2024State Public Notification requested1 linked violation
June 17, 2024State Violation/Reminder Notice1 linked violation
April 9, 2024State Public Notification requested1 linked violation
April 9, 2024State Violation/Reminder Notice1 linked violation
March 19, 2024State Public Notification received1 linked violation
March 19, 2024State Compliance achieved1 linked violation
March 15, 2024State Violation/Reminder Notice1 linked violation
January 4, 2024State Violation/Reminder Notice1 linked violation
January 4, 2024State Public Notification requested1 linked violation
November 16, 2023State Compliance achieved1 linked violation
October 30, 2023State Public Notification received1 linked violation
October 17, 2023State Public Notification requested1 linked violation
October 17, 2023State Violation/Reminder Notice1 linked violation
October 17, 2023State Public Notification requested1 linked violation
October 17, 2023State Violation/Reminder Notice1 linked violation
July 31, 2023State Public Notification received2 linked violations
July 13, 2023State Public Notification requested2 linked violations
July 13, 2023State Violation/Reminder Notice1 linked violation
October 21, 2022State Compliance achieved1 linked violation
October 21, 2022State Compliance achieved11 linked violations
May 4, 2022State Violation/Reminder Notice2 linked violations
May 4, 2022State Public Notification requested1 linked violation
March 24, 2022State Public Notification received1 linked violation
January 26, 2022State Compliance achieved2 linked violations
January 7, 2022State Public Notification requested1 linked violation
January 7, 2022State Violation/Reminder Notice1 linked violation
December 2, 2021State Violation/Reminder Notice1 linked violation
December 2, 2021State Public Notification requested1 linked violation
December 2, 2021State Violation/Reminder Notice1 linked violation
December 2, 2021State Public Notification requested1 linked violation
June 1, 2021State Violation/Reminder Notice1 linked violation
May 26, 2021State Public Notification received1 linked violation
May 25, 2021State Compliance achieved1 linked violation
March 3, 2021State Public Notification requested1 linked violation
March 3, 2021State Violation/Reminder Notice1 linked violation
February 26, 2021State Public Notification received1 linked violation
December 9, 2020State Violation/Reminder Notice1 linked violation
December 9, 2020State Public Notification requested1 linked violation
December 9, 2020State Compliance achieved1 linked violation
December 8, 2020State Public Notification received1 linked violation
November 12, 2020State Public Notification requested1 linked violation
November 12, 2020State Violation/Reminder Notice1 linked violation
November 4, 2020State Public Notification requested1 linked violation
November 4, 2020State Violation/Reminder Notice1 linked violation
August 25, 2020State Violation/Reminder Notice1 linked violation
August 25, 2020State Compliance achieved1 linked violation
July 22, 2020State Public Notification received1 linked violation
July 22, 2020State Public Notification received1 linked violation
June 10, 2020State Public Notification requested1 linked violation
June 10, 2020State Violation/Reminder Notice1 linked violation
May 7, 2020State Public Notification requested1 linked violation
May 7, 2020State Violation/Reminder Notice1 linked violation
February 24, 2020State Administrative/Compliance Order without penalty issued18 linked violations
February 5, 2020State Public Notification received1 linked violation
January 16, 2020State Violation/Reminder Notice1 linked violation
January 16, 2020State Public Notification requested1 linked violation
November 19, 2019State Public Notification received1 linked violation
October 24, 2019State Public Notification requested1 linked violation
October 24, 2019State Violation/Reminder Notice1 linked violation
August 23, 2019State Compliance achieved1 linked violation
August 9, 2019State Violation/Reminder Notice1 linked violation
August 8, 2019State Violation/Reminder Notice1 linked violation
August 8, 2019State Public Notification requested1 linked violation
April 18, 2019State Public Notification requested1 linked violation
April 18, 2019State Violation/Reminder Notice1 linked violation
January 14, 2019State Public Notification received1 linked violation
December 28, 2018State Public Notification requested1 linked violation
December 28, 2018State Violation/Reminder Notice1 linked violation
November 15, 2017State Compliance achieved2 linked violations
July 25, 2017State Violation/Reminder Notice1 linked violation
July 25, 2017State Public Notification requested1 linked violation
July 25, 2017State Violation/Reminder Notice1 linked violation
July 25, 2017State Public Notification requested1 linked violation
October 20, 2016State Compliance achieved21 linked violations
February 4, 2016State Violation/Reminder Notice21 linked violations
February 4, 2016State Public Notification requested21 linked violations
June 3, 2008State Public Notification received11 linked violations
April 4, 2008State Compliance achieved3 linked violations
February 26, 2008State Compliance achieved11 linked violations
February 8, 2008State Public Notification requested1 linked violation
February 8, 2008State Public Notification requested10 linked violations
February 8, 2008State Violation/Reminder Notice10 linked violations
February 8, 2008State Violation/Reminder Notice1 linked violation
December 3, 2007State Compliance achieved1 linked violation
June 21, 2007State Compliance achieved2 linked violations
March 6, 1995State Intentional no-action1 linked violation
March 6, 1995State Public Notification requested1 linked violation
February 14, 1994State Compliance achieved1 linked violation

Contact

PARKER, WILL S

303-681-2253

CASTLE ROCK, CO 80104