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TUMBLING RIVER RANCH

Colorado — Transient Non-Community — PWSID: CO0247015

System Information

PWSIDCO0247015
System NameTUMBLING RIVER RANCH
System TypeTransient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityGRANT
ZIP Code80448
Address—
OrganizationCHAVY, MICKAEL
Phone301-910-3131

Population & Service

Population Served124
Service Connections12

Drinking Water Violations (55)

This water system has 55 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
Sep 1, 2025 Sep 30, 2025 Revised Total Coliform Rule MON No Yes — — — Archived Sep 30, 2025 Revised Total Coliform Rule
Sep 1, 2025 Sep 30, 2025 Revised Total Coliform Rule MON No Yes — — — Archived Sep 30, 2025 Revised Total Coliform Rule
Aug 16, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Aug 1, 2025 Aug 31, 2025 Revised Total Coliform Rule MON No Yes — — — Archived Aug 31, 2025 Revised Total Coliform Rule
Aug 1, 2025 Aug 31, 2025 Revised Total Coliform Rule MON No Yes — — — Archived Aug 31, 2025 Revised Total Coliform Rule
Jul 11, 2025 — Revised Total Coliform Rule TT Yes No — — — Unaddressed — Revised Total Coliform Rule
Jul 11, 2025 — Revised Total Coliform Rule TT Yes No — — — Unaddressed — Revised Total Coliform Rule
Jun 1, 2025 Jun 30, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2025 Revised Total Coliform Rule
Jun 1, 2025 Jun 30, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2025 Revised Total Coliform Rule
Jun 1, 2025 Jun 30, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2025 Revised Total Coliform Rule
Sep 1, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
Sep 1, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
Sep 1, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
Aug 17, 2024 — Public Notice Other No No — — — Resolved Sep 23, 2024 Public Notice Rule and Revised PN Rule
Aug 17, 2024 — Public Notice Other No No — — — Resolved Sep 23, 2024 Public Notice Rule and Revised PN Rule
Aug 1, 2024 Aug 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2024 Revised Total Coliform Rule
Aug 1, 2024 Aug 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2024 Revised Total Coliform Rule
Aug 1, 2024 Aug 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2024 Revised Total Coliform Rule
Jul 11, 2024 — Revised Total Coliform Rule TT Yes No — — — Resolved Jul 17, 2024 Revised Total Coliform Rule
Jul 11, 2024 — Revised Total Coliform Rule TT Yes No — — — Resolved Jul 17, 2024 Revised Total Coliform Rule
Jul 11, 2024 — Revised Total Coliform Rule TT Yes No — — — Resolved Jul 17, 2024 Revised Total Coliform Rule
Jul 11, 2024 — Revised Total Coliform Rule TT Yes No — — — Resolved Jul 17, 2024 Revised Total Coliform Rule
Jul 11, 2022 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 21, 2022 Revised Total Coliform Rule
Jul 11, 2022 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 21, 2022 Revised Total Coliform Rule
Jul 11, 2022 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 21, 2022 Revised Total Coliform Rule
Apr 1, 2015 Jun 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Apr 1, 2015 Jun 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Apr 1, 2015 Jun 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Apr 1, 2015 Jun 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2015 Total Coliform Rule
Jan 1, 2011 Dec 31, 2019 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Nitrate Rule
Jan 1, 2011 Dec 31, 2019 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Nitrate Rule
Jan 1, 2011 Dec 31, 2019 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Nitrate Rule
Apr 1, 2003 Jun 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2003 Total Coliform Rule
Apr 1, 2003 Jun 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2003 Total Coliform Rule
Apr 1, 2003 Jun 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2003 Total Coliform Rule
Apr 1, 2003 Jun 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2003 Total Coliform Rule
Jul 1, 2000 Jul 31, 2000 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2000 Total Coliform Rule
Jul 1, 2000 Jul 31, 2000 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2000 Total Coliform Rule
Jul 1, 2000 Jul 31, 2000 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2000 Total Coliform Rule
Jul 1, 1999 Sep 30, 1999 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1999 Total Coliform Rule
Jul 1, 1999 Sep 30, 1999 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1999 Total Coliform Rule
Jul 1, 1999 Sep 30, 1999 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1999 Total Coliform Rule
Jul 1, 1998 Sep 30, 1998 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1998 Total Coliform Rule
Jul 1, 1998 Sep 30, 1998 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1998 Total Coliform Rule
Jul 1, 1998 Sep 30, 1998 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1998 Total Coliform Rule
Apr 1, 1997 Jun 30, 1997 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 1997 Total Coliform Rule
Apr 1, 1997 Jun 30, 1997 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 1997 Total Coliform Rule
Apr 1, 1997 Jun 30, 1997 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 1997 Total Coliform Rule
Jan 1, 1996 Dec 31, 1996 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 1996 Nitrate Rule
Jan 1, 1996 Dec 31, 1996 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 1996 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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