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SPANISH TRAIL WATER COMPANY

Arizona — Community Water System — PWSID: AZ0410127

System Information

PWSIDAZ0410127
System NameSPANISH TRAIL WATER COMPANY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityTUCSON
ZIP Code85754
AddressPO BOX 85160
OrganizationSPANISH TRAIL WATER COMPANY
Phone520-624-1460

Population & Service

Population Served3,822
Service Connections1,566

Drinking Water Violations (184)

This water system has 184 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 1, 2024 Jul 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jul 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Jul 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jul 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 12, 2023 — Lead and Copper Rule MR No No — TT — Resolved Nov 2, 2023 Lead and Copper Rule
Aug 12, 2023 — Lead and Copper Rule MR No No — TT — Resolved Nov 2, 2023 Lead and Copper Rule
Oct 2, 2022 — Public Notice Other No No — — — Resolved Jan 4, 2023 Public Notice Rule and Revised PN Rule
Oct 2, 2022 — Public Notice Other No No — — — Resolved Jan 4, 2023 Public Notice Rule and Revised PN Rule
Apr 2, 2022 — Public Notice Other No No — — — Resolved Jun 3, 2022 Public Notice Rule and Revised PN Rule
Apr 2, 2022 — Public Notice Other No No — — — Resolved Jun 3, 2022 Public Notice Rule and Revised PN Rule
Aug 1, 2021 Jul 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Jul 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Jul 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Jul 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Jul 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Jul 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Jul 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2020 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 20, 2020 Revised Total Coliform Rule
Mar 1, 2020 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 20, 2020 Revised Total Coliform Rule
Jul 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Jul 16, 2018 Consumer Confidence Rule
Jul 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Jul 16, 2018 Consumer Confidence Rule
Jan 1, 2015 Jan 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2015 Total Coliform Rule
Jan 1, 2015 Jan 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2015 Total Coliform Rule
Dec 1, 2014 Dec 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2014 Total Coliform Rule
Dec 1, 2014 Dec 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2014 Total Coliform Rule
Oct 1, 2014 Oct 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2014 Total Coliform Rule
Oct 1, 2014 Oct 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2014 Total Coliform Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Sep 24, 2013 Consumer Confidence Rule
Feb 1, 2013 Feb 28, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2013 Total Coliform Rule
Feb 1, 2013 Feb 28, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2013 Total Coliform Rule
Oct 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Sep 24, 2013 Consumer Confidence Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Sep 24, 2013 Consumer Confidence Rule
Nov 1, 2009 Nov 30, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2009 Total Coliform Rule
Nov 1, 2009 Nov 30, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2009 Total Coliform Rule
Jun 1, 2009 Jun 30, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2009 Total Coliform Rule
Jun 1, 2009 Jun 30, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2009 Total Coliform Rule
Oct 1, 2005 — Lead and Copper Rule MR No No — TT — Resolved Dec 6, 2006 Lead and Copper Rule
Jul 1, 2005 — Consumer Confidence Rule Other No No — — — Resolved Jul 13, 2005 Consumer Confidence Rule
Oct 1, 2004 — Lead and Copper Rule MR No No — TT — Resolved Aug 24, 2006 Lead and Copper Rule
Aug 1, 2004 Aug 31, 2004 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2004 Total Coliform Rule
Jul 1, 2004 — Consumer Confidence Rule Other No No — — — Resolved Jul 8, 2004 Consumer Confidence Rule
Dec 1, 2002 Dec 31, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2002 Total Coliform Rule
Oct 1, 2002 — Lead and Copper Rule MR No No — TT — Resolved Aug 24, 2006 Lead and Copper Rule
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved Jun 17, 2003 Consumer Confidence 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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