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NOGALES CITY OF

Arizona — Community Water System — PWSID: AZ0412004

System Information

PWSIDAZ0412004
System NameNOGALES CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityNOGALES
ZIP Code85621
Address3037 NORTH PARK CIRCLE
OrganizationARTANA, RUBEN
Phone520-287-6571

Population & Service

Population Served22,000
Service Connections5,400

Drinking Water Violations (1,950)

This water system has 1,950 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, 2025 Jul 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Archived Jul 31, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 20, 2024 — Public Notice Other No No — — — Resolved Feb 6, 2025 Public Notice Rule and Revised PN Rule
Dec 20, 2024 — Public Notice Other No No — — — Resolved Feb 6, 2025 Public Notice Rule and Revised PN Rule
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Addressed — Lead and Copper Rule Revisions
Oct 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Oct 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Apr 28, 2024 — Public Notice Other No No — — — Resolved Jun 19, 2024 Public Notice Rule and Revised PN Rule
Apr 28, 2024 — Public Notice Other No No — — — Resolved Jun 19, 2024 Public Notice Rule and Revised PN Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2023 Arsenic Rule
Oct 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2023 Arsenic Rule
Oct 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 18, 2023 Revised Total Coliform Rule
Jul 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 18, 2023 Revised Total Coliform Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2023 Arsenic Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2023 Arsenic Rule
Jul 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 18, 2023 Revised Total Coliform Rule
Apr 1, 2023 Jun 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Mar 31, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2023 Arsenic Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Mar 31, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2023 Arsenic Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 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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