WINSLOW CITY OF
Arizona - Community Water System - PWSID: AZ0409035
System Information
| PWSID | AZ0409035 |
| System Name | WINSLOW CITY OF |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Oct 5, 1979 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | WINSLOW |
| ZIP Code | 86047 |
| Address | 21 WILLIAMSON AVE. |
| Organization | WESTOVER, TIM |
| Phone | 928-289-1453 |
Population & Service
| Population Served | 9,789 |
| Service Connections | 3,267 |
Drinking Water Violations (260)
This water system has 260 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 2025 | Dec 31, 2025 | MON | No | No | - | - | - | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Archived | Apr 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Archived | Apr 30, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Oct 2, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Aug 8, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Aug 8, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Jun 30, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Oct 2, 2022 | - | Other | No | No | - | - | - | Resolved | Aug 24, 2023 | - | |
| Oct 2, 2022 | - | Other | No | No | - | - | - | Resolved | Aug 24, 2023 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Aug 24, 2023 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Aug 24, 2023 | - | |
| Oct 2, 2020 | - | Other | No | No | - | - | - | Resolved | Oct 2, 2020 | - | |
| Oct 2, 2020 | - | Other | No | No | - | - | - | Resolved | Oct 2, 2020 | - | |
| Aug 1, 2020 | Jul 31, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 31, 2021 | - | |
| Aug 1, 2020 | Jul 31, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 31, 2021 | - | |
| Aug 1, 2020 | Jul 31, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 31, 2021 | - | |
| Aug 1, 2020 | Jul 31, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 31, 2021 | - | |
| Jul 1, 2020 | - | Other | No | No | - | - | - | Resolved | Sep 1, 2020 | - | |
| Jul 1, 2020 | - | Other | No | No | - | - | - | Resolved | Sep 1, 2020 | - | |
| Jan 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Dec 4, 2019 | - | |
| Jan 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Dec 4, 2019 | - | |
| Oct 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Oct 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Apr 1, 2019 | Jun 30, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2019 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Aug 1, 2018 | - | RPT | No | No | - | - | - | Resolved | Sep 24, 2018 | - | |
| Aug 1, 2018 | - | RPT | No | No | - | - | - | Resolved | Sep 24, 2018 | - | |
| Jul 1, 2018 | Sep 30, 2018 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Jul 1, 2018 | Sep 30, 2018 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Oct 1, 2017 | - | Other | No | No | - | - | - | Resolved | Nov 7, 2018 | - | |
| Oct 1, 2017 | - | Other | No | No | - | - | - | Resolved | Nov 7, 2018 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2016 | - |
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.