Drinking Water Compliance OS

WINTER PARK, CO · Grand County

GRAND COUNTY WATER NO 1 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)
CO0125323
System type
Community Water System
Population served
5,400
Service connections
702
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Monitoring, Regular

    Chromium

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Arsenic

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Selenium

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Thallium, Total

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Antimony, Total

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Chromium

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Barium

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Arsenic

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Nitrate

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Nickel

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Mercury

    January 1, 2025 – December 31, 2025

    Archived
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2024 – December 31, 2024

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    February 1, 2024 – February 29, 2024

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    February 1, 2024 – February 29, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2024 – March 21, 2024

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    November 1, 2023 – November 30, 2023

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    November 1, 2023 – November 30, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2023 – November 21, 2023

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    October 1, 2023 – October 31, 2023

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    October 1, 2023 – March 26, 2024

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    October 1, 2023 – October 31, 2023

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Nickel

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Chromium

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Nickel

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Chromium

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2023 – December 31, 2023

    Resolved
  • Public Notification Violation without NPDWR Violation

    Public Notice

    December 8, 2022 – December 13, 2022

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2022 – November 30, 2022

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    November 1, 2022 – November 30, 2022

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2022 – December 15, 2022

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2021 – December 8, 2021

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2020 – January 5, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    July 1, 2020 – September 30, 2020

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    July 1, 2020 – September 30, 2020

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2020 – January 5, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 22, 2020 – October 20, 2020

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    April 1, 2020 – June 30, 2020

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    April 1, 2020 – August 18, 2020

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    April 1, 2020 – June 30, 2020

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    January 1, 2020 – January 31, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    January 1, 2020 – January 31, 2020

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 22, 2019 – October 20, 2020

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    October 1, 2019 – October 31, 2019

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    October 1, 2019 – October 31, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    August 1, 2019 – August 31, 2019

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2019 – August 31, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 22, 2019 – October 20, 2020

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    July 1, 2019 – September 30, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    July 1, 2019 – September 30, 2019

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2019 – January 2, 2020

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2019 – August 15, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 22, 2019 – October 20, 2020

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    April 1, 2019 – May 20, 2019

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    March 1, 2019 – March 31, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    March 1, 2019 – March 31, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    January 22, 2019 – October 20, 2020

    Resolved
  • Water Quality Parameter M/R

    Lead and Copper Rule

    January 1, 2019 – June 30, 2019

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    November 1, 2018 – November 30, 2018

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2018 – November 30, 2018

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 22, 2018 – October 20, 2020

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2018 – December 18, 2018

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2018 – December 31, 2018

    Resolved
  • Public Notification Violation without NPDWR Violation

    Public Notice

    August 4, 2018 – August 15, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    April 22, 2018 – October 20, 2020

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    May 1, 2017 – May 31, 2017

    Resolved
  • Monitoring, Source Water (LT2)

    E. COLI

    May 1, 2017 – May 31, 2017

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    April 1, 2017 – June 30, 2017

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    April 1, 2017 – April 30, 2017

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    April 1, 2017 – June 30, 2017

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    March 1, 2017 – March 31, 2017

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    February 1, 2017 – February 28, 2017

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    January 1, 2017 – January 31, 2017

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    December 2, 2016 – February 4, 2021

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    December 2, 2016 – February 4, 2021

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    December 2, 2016 – January 25, 2018

    Resolved
  • Monitoring, Source Water (LT2)

    E. COLI

    December 1, 2016 – December 31, 2016

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    December 1, 2016 – December 31, 2016

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    November 1, 2016 – November 30, 2016

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    September 1, 2016 – September 30, 2016

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    August 1, 2016 – August 31, 2016

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    July 1, 2016 – July 31, 2016

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    June 1, 2016 – June 30, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    April 1, 2014 – June 30, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    April 1, 2014 – June 30, 2014

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2012 – December 31, 2012

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    August 1, 2011 – August 31, 2011

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    August 1, 2011 – August 31, 2011

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2011 – September 30, 2011

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2010 – August 13, 2010

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    May 1, 2010 – May 31, 2010

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2010 – June 30, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2008 – August 31, 2008

    Resolved
  • Monitoring, Source Water (LT2)

    Long Term 2 Enhanced Surface Water Treatment Rule

    July 1, 2008 – October 1, 2008

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Routine (IDSE)

    Stage 2 Disinfectants and Disinfection Byproducts Rule

    April 1, 2008 – April 1, 2009

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Aldicarb

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Endothall

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    December 1, 2007 – December 31, 2007

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2007 – August 6, 2009

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2007 – December 31, 2007

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 1999 – April 30, 1999

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    May 1, 1991 – May 31, 1991

    Archived

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

Enforcement actions

Contact

CONIBERE, SHANEL

970-726-5583

WINTER PARK, CO 80482