LARKSPUR, CO · Douglas County

PERRY PARK 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): CO0118045
System type: Community Water System
Population served: 3,890
Service connections: 1,556
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Source Water (LT2)
—
E. COLI
November 1, 2023 – November 30, 2023
Resolved
Monitoring, Source Water (LT2)
—
Long Term 2 Enhanced Surface Water Treatment Rule
February 16, 2023 – February 27, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2022 – March 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2022 – March 31, 2022
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2022 – March 31, 2022
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
June 1, 2021 – June 30, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2021 – June 30, 2021
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
April 1, 2021 – April 30, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2021 – April 30, 2021
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2020 – June 29, 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
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2019 – March 31, 2019
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2019 – January 11, 2019
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
LASSO
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Endrin
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Diquat
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Endothall
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Simazine
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2002 – March 31, 2002
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2001 – December 31, 2001
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2023 – November 30, 2023	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
February 16, 2023 – February 27, 2023	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	—	Resolved
December 1, 2022 – December 31, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2022 – March 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2022 – March 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2022 – March 31, 2022	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
June 1, 2021 – June 30, 2021	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
June 1, 2021 – June 30, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2021 – April 30, 2021	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2021 – April 30, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2020 – June 29, 2020	Monitoring, Regular	Combined Radium (-226 and -228)	—	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
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2019 – January 11, 2019	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	LASSO	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Endrin	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Diquat	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Endothall	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Simazine	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Aldicarb sulfone	—	Resolved
August 1, 2007 – August 31, 2007	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2002 – March 31, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2001 – December 31, 2001	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

April 30, 2024State Compliance achieved1 linked violation
January 22, 2024State Violation/Reminder Notice1 linked violation
January 22, 2024State Public Notification requested1 linked violation
February 27, 2023State Compliance achieved1 linked violation
February 16, 2023State Violation/Reminder Notice1 linked violation
February 16, 2023State Public Notification requested1 linked violation
February 6, 2023State Compliance achieved1 linked violation
February 2, 2023State Public Notification requested1 linked violation
February 2, 2023State Violation/Reminder Notice1 linked violation
May 31, 2022State Compliance achieved1 linked violation
May 31, 2022State Compliance achieved2 linked violations
April 28, 2022State Public Notification requested1 linked violation
April 28, 2022State Violation/Reminder Notice1 linked violation
April 28, 2022State Public Notification requested2 linked violations
April 28, 2022State Violation/Reminder Notice2 linked violations
August 3, 2021State Compliance achieved2 linked violations
July 13, 2021State Public Notification requested1 linked violation
July 13, 2021State Violation/Reminder Notice1 linked violation
July 13, 2021State Public Notification requested1 linked violation
July 13, 2021State Violation/Reminder Notice1 linked violation
June 3, 2021State Compliance achieved31 linked violations
May 11, 2021State Public Notification requested1 linked violation
May 11, 2021State Violation/Reminder Notice1 linked violation
May 11, 2021State Public Notification requested1 linked violation
May 11, 2021State Violation/Reminder Notice1 linked violation
May 11, 2021State Compliance achieved2 linked violations
August 10, 2020State Violation/Reminder Notice2 linked violations
August 10, 2020State Public Notification requested1 linked violation
August 10, 2020State Violation/Reminder Notice1 linked violation
August 10, 2020State Public Notification requested2 linked violations
August 5, 2020State Compliance achieved2 linked violations
June 29, 2020State Compliance achieved1 linked violation
February 3, 2020State Violation/Reminder Notice31 linked violations
February 3, 2020State Public Notification requested31 linked violations
October 2, 2019State Compliance achieved2 linked violations
May 3, 2019State Public Notification requested2 linked violations
May 3, 2019State Violation/Reminder Notice2 linked violations
January 11, 2019State Public Notification requested1 linked violation
January 11, 2019State Compliance achieved1 linked violation
January 11, 2019State Violation/Reminder Notice1 linked violation
April 4, 2008State Compliance achieved2 linked violations
October 26, 2007State Compliance achieved1 linked violation
October 10, 2007State Violation/Reminder Notice1 linked violation
July 17, 2002State Compliance achieved4 linked violations
May 1, 2002State Public Notification requested2 linked violations
March 4, 2002State Formal Notice of Violation issued1 linked violation

Contact

MILLER, DIANA

303-791-5556

LARKSPUR, CO 80118