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HIDDEN VALLEY WATER DISTRICT

Colorado — Community Water System — PWSID: CO0130045

System Information

PWSIDCO0130045
System NameHIDDEN VALLEY WATER DISTRICT
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityEVERGREEN
ZIP Code80439
Address—
OrganizationSIMONSON, NICKI
Phone303-674-3379

Population & Service

Population Served155
Service Connections63

Drinking Water Violations (199)

This water system has 199 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 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Nov 15, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Nov 15, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Nov 15, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Nov 15, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Nov 15, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Nov 15, 2024 Lead and Copper Rule Revisions
Feb 1, 2024 Feb 29, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 29, 2024 Revised Total Coliform Rule
Feb 1, 2024 Feb 29, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2024 Surface Water Treatment Rule
Feb 1, 2024 Feb 29, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2024 Surface Water Treatment Rule
Feb 1, 2024 Feb 29, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 29, 2024 Surface Water Treatment Rule
Feb 1, 2024 Feb 29, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 29, 2024 Revised Total Coliform Rule
Feb 1, 2024 Feb 29, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 29, 2024 Revised Total Coliform Rule
Jan 1, 2024 Jan 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2024 Revised Total Coliform Rule
Jan 1, 2024 Jan 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2024 Surface Water Treatment Rule
Jan 1, 2024 Jan 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2024 Surface Water Treatment Rule
Jan 1, 2024 Mar 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 27, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 27, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Jan 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2024 Revised Total Coliform Rule
Jan 1, 2024 Mar 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 27, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Jan 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2024 Revised Total Coliform Rule
Jan 1, 2024 Jan 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2024 Surface Water Treatment Rule
Dec 1, 2023 Dec 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2023 Revised Total Coliform Rule
Dec 1, 2023 Dec 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2023 Revised Total Coliform Rule
Dec 1, 2023 Dec 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2023 Revised Total Coliform Rule
Dec 1, 2023 Dec 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2023 Surface Water Treatment Rule
Dec 1, 2023 Dec 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2023 Surface Water Treatment Rule
Dec 1, 2023 Dec 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2023 Surface Water Treatment Rule
Dec 1, 2023 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 26, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2023 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 26, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2023 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 26, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2023 Dec 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2023 Revised Total Coliform Rule
Dec 1, 2023 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 26, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2023 Dec 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2023 Revised Total Coliform Rule
Nov 1, 2023 Nov 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2023 Revised Total Coliform Rule
Nov 1, 2023 Nov 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2023 Revised Total Coliform Rule
Nov 1, 2023 Nov 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2023 Revised Total Coliform Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2020 Nitrate Rule
Apr 1, 2020 Jun 30, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2020 Nitrate Rule
Apr 1, 2020 Jun 30, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2020 Nitrate Rule
Apr 1, 2020 Jun 30, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2020 Nitrate Rule
Apr 1, 2018 Jun 30, 2018 Nitrate MCL Yes No 11.6 MG/L 10 mg/L 10 Resolved Jun 30, 2018 Nitrate 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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