ESTES PARK, CO · Larimer County

ANNUNCIATION HEIGHTS 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): CO0235185
System type: Community Water System
Population served: 260
Service connections: 20
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring and Reporting (DBP)
—
TTHM
October 1, 2025 – December 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2023 – September 30, 2023
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
March 31, 2020 – May 8, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2019 – December 10, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2019 – December 10, 2019
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2015 – December 31, 2015
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
August 1, 2015 – March 25, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2015 – March 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2015 – March 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2014 – December 31, 2014
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
March 1, 1996 – March 31, 1996
Resolved

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
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Archived
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
March 31, 2020 – May 8, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2019 – December 10, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2019 – December 10, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2019 – December 31, 2019	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
August 1, 2015 – March 25, 2016	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
March 1, 1996 – March 31, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved

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

Enforcement actions

January 23, 2026State Violation/Reminder Notice5 linked violations
August 19, 2024State Compliance achieved4 linked violations
July 3, 2024State Public Notification received26 linked violations
June 11, 2024State Public Notification requested1 linked violation
March 31, 2024State Public Notification received7 linked violations
March 5, 2024State Violation/Reminder Notice2 linked violations
March 5, 2024State Public Notification requested1 linked violation
November 28, 2023State Public Notification requested2 linked violations
October 6, 2023State Public Notification received10 linked violations
September 13, 2023State Violation/Reminder Notice1 linked violation
September 13, 2023State Public Notification requested1 linked violation
February 16, 2022State Compliance achieved1 linked violation
July 28, 2021State Violation/Reminder Notice1 linked violation
July 28, 2021State Public Notification requested1 linked violation
January 7, 2021State Compliance achieved2 linked violations
May 8, 2020State Public Notification received1 linked violation
May 8, 2020State Compliance achieved1 linked violation
May 5, 2020State Violation/Reminder Notice1 linked violation
May 5, 2020State Public Notification requested1 linked violation
April 27, 2020State Compliance achieved1 linked violation
April 16, 2020State Violation/Reminder Notice1 linked violation
April 15, 2020State Compliance achieved1 linked violation
April 10, 2020State Compliance achieved1 linked violation
January 31, 2020State Public Notification requested1 linked violation
January 31, 2020State Violation/Reminder Notice1 linked violation
January 31, 2020State Violation/Reminder Notice1 linked violation
January 31, 2020State Public Notification requested1 linked violation
January 1, 2020State Compliance achieved1 linked violation
January 1, 2020State Intentional no-action1 linked violation
December 10, 2019State Compliance achieved2 linked violations
October 28, 2019State Violation/Reminder Notice1 linked violation
August 29, 2019State Public Notification requested1 linked violation
August 29, 2019State Public Notification requested1 linked violation
August 29, 2019State Violation/Reminder Notice1 linked violation
August 29, 2019State Violation/Reminder Notice1 linked violation
March 6, 2019State Violation/Reminder Notice1 linked violation
March 6, 2019State Public Notification requested1 linked violation
July 11, 2018State Violation/Reminder Notice1 linked violation
July 11, 2018State Public Notification requested1 linked violation
October 20, 2016State Compliance achieved1 linked violation
September 1, 2016State Compliance achieved15 linked violations
April 28, 2016State Violation/Reminder Notice1 linked violation
April 28, 2016State Public Notification requested1 linked violation
March 25, 2016State Compliance achieved1 linked violation
March 25, 2016State Public Notification received1 linked violation
March 25, 2016State Public Notification received1 linked violation
March 25, 2016State Public Notification received1 linked violation
March 23, 2016State Violation/Reminder Notice1 linked violation
March 3, 2016State Public Notification requested1 linked violation
March 3, 2016State Violation/Reminder Notice1 linked violation
February 1, 2016State Violation/Reminder Notice1 linked violation
February 1, 2016State Public Notification requested1 linked violation
February 1, 2016State Violation/Reminder Notice1 linked violation
February 1, 2016State Public Notification requested1 linked violation
November 23, 2015State Public Notification received1 linked violation
November 18, 2015State Public Notification received1 linked violation
November 13, 2015State Public Notification received12 linked violations
October 26, 2015State Public Notification requested1 linked violation
October 26, 2015State Violation/Reminder Notice1 linked violation
October 26, 2015State Public Notification requested1 linked violation
October 26, 2015State Violation/Reminder Notice1 linked violation
October 26, 2015State Public Notification requested1 linked violation
October 26, 2015State Violation/Reminder Notice1 linked violation
July 23, 2015State Public Notification received6 linked violations
June 25, 2015State Violation/Reminder Notice1 linked violation
June 25, 2015State Violation/Reminder Notice1 linked violation
June 25, 2015State Public Notification requested1 linked violation
June 25, 2015State Public Notification requested1 linked violation
April 29, 2015State Violation/Reminder Notice47 linked violations
April 29, 2015State Public Notification requested125 linked violations
January 13, 2015State Public Notification received8 linked violations
December 18, 2014State Public Notification requested6 linked violations
April 16, 2008State Compliance achieved3 linked violations
May 18, 1996State Public Notification received1 linked violation
May 13, 1996State Formal Notice of Violation issued4 linked violations

Contact

HLAVIN, LUKE

970-586-5689

ESTES PARK, CO 80517