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ELDORA MOUNTAIN RESORT

Colorado — Non-Transient Non-Community — PWSID: CO0207466

System Information

PWSIDCO0207466
System NameELDORA MOUNTAIN RESORT
System TypeNon-Transient Non-Community
Water SourceSurface Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityNEDERLAND
ZIP Code80466
Address—
OrganizationTREGASKIS, BRENT
Phone303-440-8700

Population & Service

Population Served2,400
Service Connections7

Drinking Water Violations (208)

This water system has 208 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
Apr 1, 2024 Jun 30, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .075 MG/L 0.060 mg/L .06 Resolved Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .075 MG/L 0.060 mg/L .06 Resolved Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .075 MG/L 0.060 mg/L .06 Resolved Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .075 MG/L 0.060 mg/L .06 Resolved Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .075 MG/L 0.060 mg/L .06 Resolved Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .08 MG/L 0.060 mg/L .06 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .08 MG/L 0.060 mg/L .06 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .08 MG/L 0.060 mg/L .06 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .08 MG/L 0.060 mg/L .06 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MCL Yes No .08 MG/L 0.060 mg/L .06 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .083 MG/L 0.060 mg/L .06 Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .083 MG/L 0.060 mg/L .06 Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .083 MG/L 0.060 mg/L .06 Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .083 MG/L 0.060 mg/L .06 Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .083 MG/L 0.060 mg/L .06 Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .089 MG/L 0.060 mg/L .06 Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .089 MG/L 0.060 mg/L .06 Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .089 MG/L 0.060 mg/L .06 Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .089 MG/L 0.060 mg/L .06 Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .089 MG/L 0.060 mg/L .06 Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2023 May 31, 2023 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved May 19, 2023 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2023 May 31, 2023 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved May 19, 2023 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2023 May 31, 2023 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved May 19, 2023 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .06833 MG/L 0.060 mg/L .06 Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .06833 MG/L 0.060 mg/L .06 Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Apr 30, 2023 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Apr 30, 2023 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2023 Apr 30, 2023 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Apr 30, 2023 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .06833 MG/L 0.060 mg/L .06 Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .06833 MG/L 0.060 mg/L .06 Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .06833 MG/L 0.060 mg/L .06 Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Apr 30, 2023 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Apr 30, 2023 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2023 Mar 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2023 Surface Water Treatment Rule
Mar 1, 2023 Mar 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2023 Surface Water Treatment Rule
Mar 1, 2023 Mar 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2023 Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 22, 2021 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Mar 5, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Feb 22, 2021 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Mar 5, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Feb 22, 2021 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Mar 5, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Oct 8, 2021 Lead and Copper Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Oct 8, 2021 Lead and Copper Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Oct 8, 2021 Lead and Copper Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Oct 8, 2021 Lead and Copper Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .06393 MG/L 0.060 mg/L .06 Resolved Sep 30, 2020 Stage 2 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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