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SAGUARO NATIONAL PARK

Arizona — Transient Non-Community — PWSID: AZ0410703

System Information

PWSIDAZ0410703
System NameSAGUARO NATIONAL PARK
System TypeTransient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeFederal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityTUCSON
ZIP Code85730
Address—
OrganizationNPS SAGUARO TUCSON
Phone520-733-5140

Population & Service

Population Served1,440
Service Connections6

Drinking Water Violations (30)

This water system has 30 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
May 25, 2025 — Public Notice Other No No — — — Resolved Jul 11, 2025 Public Notice Rule and Revised PN Rule
May 25, 2025 — Public Notice Other No No — — — Resolved Jul 11, 2025 Public Notice Rule and Revised PN Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
May 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 27, 2024 Revised Total Coliform Rule
May 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 27, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Feb 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Mar 25, 2024 Revised Total Coliform Rule
Feb 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Mar 25, 2024 Revised Total Coliform Rule
May 1, 2023 May 31, 2023 Revised Total Coliform Rule MON No No — — — Resolved May 31, 2023 Revised Total Coliform Rule
May 1, 2023 May 31, 2023 Revised Total Coliform Rule MON No No — — — Resolved May 31, 2023 Revised Total Coliform Rule
May 1, 2023 May 31, 2023 Revised Total Coliform Rule MON No No — — — Resolved May 31, 2023 Revised Total Coliform Rule
May 1, 2023 May 31, 2023 Revised Total Coliform Rule MON No No — — — Resolved May 31, 2023 Revised Total Coliform Rule
Jan 1, 2016 Dec 31, 2016 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2005 Dec 31, 2005 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2005 Nitrate Rule
Jan 1, 2004 Dec 31, 2004 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2004 Nitrate Rule
Mar 31, 1990 Mar 30, 1993 Fluoride MR No Yes — 4.0 mg/L — Archived Mar 30, 1993 Inorganic Chemicals
Mar 31, 1990 Mar 30, 1993 Arsenic MR No Yes — 0.010 mg/L — Archived Mar 30, 1993 Arsenic Rule
Mar 31, 1990 Mar 30, 1993 Selenium MR No Yes — 0.05 mg/L — Archived Mar 30, 1993 Inorganic Chemicals
Mar 31, 1990 Mar 30, 1993 Mercury MR No Yes — 0.002 mg/L — Archived Mar 30, 1993 Inorganic Chemicals
Mar 31, 1990 Mar 30, 1993 Barium MR No Yes — 2 mg/L — Archived Mar 30, 1993 Inorganic Chemicals
Mar 31, 1990 Mar 30, 1993 Cadmium MR No Yes — 0.005 mg/L — Archived Mar 30, 1993 Inorganic Chemicals
Mar 31, 1990 Mar 30, 1993 Nitrate MR No Yes — 10 mg/L — Archived Mar 30, 1993 Nitrate Rule
Mar 31, 1990 Mar 30, 1993 Chromium MR No Yes — 0.1 mg/L — Archived Mar 30, 1993 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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