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LAKE DURANGO WA

Colorado — Community Water System — PWSID: CO0134530

System Information

PWSIDCO0134530
System NameLAKE DURANGO WA
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerYes
First ReportedMar 15, 1990
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityDURANGO
ZIP Code81302
Address—
OrganizationGRAHAM, TIMOTHY
Phone970-247-4062

Population & Service

Population Served1,577
Service Connections631

Drinking Water Violations (188)

This water system has 188 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
Jul 8, 2022 — Public Notice Other No No — — — Resolved Nov 1, 2022 Public Notice Rule and Revised PN Rule
Jul 8, 2022 — Public Notice Other No No — — — Resolved Nov 1, 2022 Public Notice Rule and Revised PN Rule
Jun 1, 2022 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Jun 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2022 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Jun 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2022 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Jun 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2022 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Jun 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2022 Dec 31, 2022 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2022 Dec 31, 2022 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2021 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2021 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2021 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2021 Synthetic Organic Chemicals
Oct 1, 2020 Oct 31, 2020 Chlorite MR No Yes — 1.0 mg/L — Resolved Oct 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Oct 31, 2020 Chlorite MR No Yes — 1.0 mg/L — Resolved Oct 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Oct 31, 2020 Chlorite MR No Yes — 1.0 mg/L — Resolved Oct 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Oct 31, 2019 Chlorite MR No Yes — 1.0 mg/L — Resolved Oct 31, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Oct 31, 2019 Chlorite MR No Yes — 1.0 mg/L — Resolved Oct 31, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Oct 31, 2019 Chlorite MR No Yes — 1.0 mg/L — Resolved Oct 31, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 10, 2019 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 10, 2019 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 10, 2019 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 24, 2019 — TTHM MR No No — 0.080 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 24, 2019 — TTHM MR No No — 0.080 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 24, 2019 — TTHM MR No No — 0.080 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 14, 2019 — TTHM MR No No — 0.080 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 14, 2019 — TTHM MR No No — 0.080 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 14, 2019 — TTHM MR No No — 0.080 mg/L — Resolved Sep 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Oct 16, 2018 Lead and Copper Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Oct 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2018 Oct 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2018 Oct 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Oct 16, 2018 Lead and Copper Rule
Oct 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Oct 16, 2018 Lead and Copper Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Oct 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .085 MG/L 0.080 mg/L .08 Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Sep 30, 2018 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Sep 30, 2018 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Sep 30, 2018 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Sep 30, 2018 Chlorite MR No Yes — 1.0 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Sep 30, 2018 Chlorite MR No Yes — 1.0 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2018 Sep 30, 2018 Chlorite MR No Yes — 1.0 mg/L — Resolved Sep 30, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2018 Aug 31, 2018 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Aug 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2018 Aug 31, 2018 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Aug 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2018 Aug 31, 2018 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Aug 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2018 Aug 31, 2018 Chlorite MR No Yes — 1.0 mg/L — Resolved Aug 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2018 Aug 31, 2018 Chlorite MR No Yes — 1.0 mg/L — Resolved Aug 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule

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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