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CITY OF YUMA

Arizona — Community Water System — PWSID: AZ0414024

System Information

PWSIDAZ0414024
System NameCITY OF YUMA
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityYUMA
ZIP Code85364
Address—
OrganizationYUMA CITY OF
Phone928-373-4588

Population & Service

Population Served103,264
Service Connections32,641

Drinking Water Violations (436)

This water system has 436 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
Jun 1, 2025 Jun 30, 2025 Chlorine dioxide MR No Yes — 0.8 mg/L — Archived Jun 30, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2025 Jun 30, 2025 Chlorine dioxide MR No Yes — 0.8 mg/L — Archived Jun 30, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2025 Jun 30, 2025 Chlorine dioxide MR No Yes — 0.8 mg/L — Archived Jun 30, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorite MR No Yes — 1.0 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorite MR No Yes — 1.0 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorite MR No Yes — 1.0 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorite MR No Yes — 1.0 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2022 Mar 31, 2022 Chlorine dioxide MRDL Yes No 1 MG/L 0.8 mg/L .8 Resolved Mar 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2022 Mar 31, 2022 Chlorine dioxide MRDL Yes No 1 MG/L 0.8 mg/L .8 Resolved Mar 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2022 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Mar 1, 2022 Mar 31, 2022 Chlorine dioxide MRDL Yes No 1 MG/L 0.8 mg/L .8 Resolved Mar 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2022 Mar 31, 2022 Chlorine dioxide MRDL Yes No 1 MG/L 0.8 mg/L .8 Resolved Mar 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2022 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Feb 1, 2022 Feb 28, 2022 Chlorine dioxide MRDL Yes No 1.6 MG/L 0.8 mg/L .8 Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Feb 1, 2022 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Feb 1, 2022 Feb 28, 2022 Chlorite MR No No — 1.0 mg/L — Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorine dioxide MRDL Yes No 1.6 MG/L 0.8 mg/L .8 Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorine dioxide MRDL Yes No 1.6 MG/L 0.8 mg/L .8 Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorite MR No No — 1.0 mg/L — Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorite MR No No — 1.0 mg/L — Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorine dioxide MRDL Yes No 1.6 MG/L 0.8 mg/L .8 Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorite MR No No — 1.0 mg/L — Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2022 Feb 28, 2022 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Feb 28, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Jan 1, 2022 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Jan 1, 2022 Jan 31, 2022 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Jan 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Jan 31, 2022 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Jan 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Jan 31, 2022 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Jan 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Jan 31, 2022 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Jan 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2021 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Dec 1, 2021 Dec 31, 2021 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Dec 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2021 Dec 31, 2021 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Dec 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2021 Dec 31, 2021 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Dec 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2021 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Dec 1, 2021 Dec 31, 2021 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Dec 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2021 Nov 30, 2021 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Nov 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2021 Nov 30, 2021 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Nov 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2021 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Nov 1, 2021 Nov 30, 2021 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Nov 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2021 — Public Notice Other No No — — — Resolved Jun 2, 2022 Public Notice Rule and Revised PN Rule
Nov 1, 2021 Nov 30, 2021 Chlorine dioxide MRDL Yes No 1.3 MG/L 0.8 mg/L .8 Resolved Nov 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2021 Oct 31, 2021 Chlorine dioxide MR No Yes — 0.8 mg/L — Resolved Oct 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts 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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