PCNR COLOSSAL CAVE

Arizona — Transient Non-Community — PWSID: AZ0420023

System Information

PWSIDAZ0420023
System NamePCNR COLOSSAL CAVE
System TypeTransient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityTUCSON
ZIP Code85704
Address444 W ORANGE GROVE RD
OrganizationSIMBARI, GREGORY
Phone520-724-5116

Population & Service

Population Served210
Service Connections6

Drinking Water Violations (27)

This water system has 27 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, 2023 Sep 30, 2023 Revised Total Coliform Rule MON No Yes Resolved Sep 30, 2023 Revised Total Coliform Rule
Sep 1, 2023 Sep 30, 2023 Revised Total Coliform Rule MON No Yes Resolved Sep 30, 2023 Revised Total Coliform Rule
Jun 1, 2017 Jun 30, 2017 Revised Total Coliform Rule MON No Yes Resolved Jun 30, 2017 Revised Total Coliform Rule
Sep 1, 2014 Sep 30, 2014 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2014 Total Coliform Rule
Sep 1, 2014 Sep 30, 2014 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2014 Total Coliform Rule
Jan 1, 2012 Dec 31, 2012 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 2012 Nitrate Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2008 Total Coliform Rule
Jan 1, 2007 Dec 31, 2007 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 2007 Nitrate Rule
Jan 1, 2007 Jan 31, 2007 Coliform (TCR) MCL Yes No 5% of samples Resolved Jan 31, 2007 Total Coliform Rule
Jan 1, 2007 Dec 31, 2007 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 2007 Nitrate Rule
Sep 1, 2004 Sep 30, 2004 Coliform (TCR) MR No No 5% of samples Resolved Sep 30, 2004 Total Coliform Rule
Jan 1, 2003 Jan 31, 2003 Coliform (TCR) MR No No 5% of samples Resolved Jan 31, 2003 Total Coliform Rule
Dec 1, 2002 Dec 31, 2002 Coliform (TCR) MR No No 5% of samples Resolved Dec 31, 2002 Total Coliform Rule
Dec 1, 2002 Dec 31, 2002 Coliform (TCR) MCL Yes No 5% of samples Resolved Dec 31, 2002 Total Coliform Rule
Jan 1, 2001 Dec 31, 2001 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 2001 Nitrate Rule
Jul 1, 1999 Jul 31, 1999 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 1999 Total Coliform Rule
Jan 1, 1999 Dec 31, 1999 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 1999 Nitrate Rule
Sep 30, 1990 Sep 29, 1993 Selenium MR No Yes 0.05 mg/L Archived Sep 29, 1993 Inorganic Chemicals
Oct 1, 1987 Sep 29, 1990 Fluoride MR No Yes 4.0 mg/L Archived Sep 29, 1990 Inorganic Chemicals
Oct 1, 1987 Sep 29, 1990 Cadmium MR No Yes 0.005 mg/L Archived Sep 29, 1990 Inorganic Chemicals
Oct 1, 1987 Sep 29, 1990 Arsenic MR No Yes 0.010 mg/L Archived Sep 29, 1990 Arsenic Rule
Oct 1, 1987 Sep 29, 1990 Nitrate MR No Yes 10 mg/L Archived Sep 29, 1990 Nitrate Rule
Oct 1, 1987 Sep 29, 1990 Barium MR No Yes 2 mg/L Archived Sep 29, 1990 Inorganic Chemicals
Oct 1, 1987 Sep 29, 1990 Chromium MR No Yes 0.1 mg/L Archived Sep 29, 1990 Inorganic Chemicals
Oct 1, 1987 Sep 29, 1990 Selenium MR No Yes 0.05 mg/L Archived Sep 29, 1990 Inorganic Chemicals
Oct 1, 1987 Sep 29, 1990 Mercury MR No Yes 0.002 mg/L Archived Sep 29, 1990 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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