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KNOLLS AT DURANGO HOA

Colorado — Community Water System — PWSID: CO0134515

System Information

PWSIDCO0134515
System NameKNOLLS AT DURANGO HOA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedNov 18, 2000
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityDURANGO
ZIP Code81303
Address252 KNOLLS CIR
OrganizationWALKER, RAY
Phone970-382-7662

Population & Service

Population Served150
Service Connections32

Drinking Water Violations (73)

This water system has 73 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Oct 5, 2025 — E. COLI MR No Yes — — — Resolved Oct 14, 2025 Ground Water Rule
Oct 5, 2025 — E. COLI MR No Yes — — — Resolved Oct 14, 2025 Ground Water Rule
Oct 5, 2025 — E. COLI MR No Yes — — — Resolved Oct 14, 2025 Ground Water Rule
Oct 1, 2025 Dec 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 14, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2025 Dec 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 14, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2025 Dec 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 14, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 14, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 14, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 14, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2025 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 14, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2025 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 14, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2025 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 14, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2021 Nov 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2021 Revised Total Coliform Rule
Nov 1, 2021 Nov 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2021 Revised Total Coliform Rule
Nov 1, 2021 Nov 30, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2021 Revised Total Coliform Rule
Oct 1, 2021 Dec 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 20, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2021 Dec 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 20, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2021 Dec 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 20, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2020 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 2, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2020 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 2, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2020 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 2, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2020 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 2, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Apr 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2018 Revised Total Coliform Rule
Apr 1, 2018 Apr 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2018 Revised Total Coliform Rule
Apr 1, 2018 Apr 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2018 Revised Total Coliform Rule
Apr 1, 2018 Jun 30, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved May 2, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved May 2, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved May 2, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 Sep 30, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 Sep 30, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Feb 10, 2012 Consumer Confidence Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Feb 10, 2012 Consumer Confidence Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Feb 10, 2012 Consumer Confidence Rule
Oct 1, 2005 — Lead and Copper Rule MR No No — TT — Resolved Mar 13, 2007 Lead and Copper Rule
Oct 1, 2005 — Lead and Copper Rule MR No No — TT — Resolved Mar 13, 2007 Lead and Copper Rule
Oct 1, 2005 — Lead and Copper Rule MR No No — TT — Resolved Mar 13, 2007 Lead and Copper Rule
Jan 1, 2004 Dec 31, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2004 Nitrate Rule
Jan 1, 2004 Dec 31, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2004 Nitrate Rule
Jan 1, 2004 Dec 31, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2004 Nitrate Rule
Jan 1, 2002 Dec 31, 2004 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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