KOFA CO-OP
Arizona - Transient Non-Community - PWSID: AZ0414096
System Information
| PWSID | AZ0414096 |
| System Name | KOFA CO-OP |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Mixed |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Sep 30, 1986 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | YUMA |
| ZIP Code | 85365 |
| Address | - |
| Organization | KOFA KO-OP RETREAT |
| Phone | 928-344-0645 |
Population & Service
| Population Served | 300 |
| Service Connections | 154 |
Drinking Water Violations (61)
This water system has 61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 1, 2025 | - | RPT | No | No | - | - | - | Resolved | Apr 29, 2025 | - | |
| Mar 1, 2025 | - | RPT | No | No | - | - | - | Resolved | Apr 29, 2025 | - | |
| Jan 1, 2025 | - | RPT | No | No | - | - | - | Resolved | Feb 24, 2025 | - | |
| Jan 1, 2025 | - | RPT | No | No | - | - | - | Resolved | Feb 24, 2025 | - | |
| Dec 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Apr 21, 2025 | - | |
| Dec 1, 2024 | - | RPT | No | No | - | - | - | Resolved | Apr 21, 2025 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Jul 5, 2024 | - | Other | No | No | - | - | - | Resolved | Dec 18, 2024 | - | |
| Jul 5, 2024 | - | Other | No | No | - | - | - | Resolved | Dec 18, 2024 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2023 | - | |
| Sep 28, 2022 | - | MR | No | No | - | - | - | Resolved | Nov 3, 2022 | - | |
| Sep 28, 2022 | - | MR | No | No | - | - | - | Resolved | Nov 3, 2022 | - | |
| Feb 1, 2021 | - | RPT | No | No | - | - | - | Resolved | Jul 19, 2021 | - | |
| Feb 1, 2021 | - | RPT | No | No | - | - | - | Resolved | Jul 19, 2021 | - | |
| Feb 1, 2020 | - | RPT | No | No | - | - | - | Resolved | Apr 7, 2020 | - | |
| Feb 1, 2020 | - | RPT | No | No | - | - | - | Resolved | Apr 7, 2020 | - | |
| Jan 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Jul 20, 2021 | - | |
| Jan 1, 2019 | - | RPT | No | No | - | - | - | Resolved | Jul 20, 2021 | - | |
| Sep 22, 2018 | - | TT | Yes | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2018 | - | TT | Yes | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2018 | - | TT | Yes | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2018 | - | RPT | No | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2018 | - | RPT | No | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2018 | - | RPT | No | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Sep 22, 2017 | - | TT | Yes | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2017 | - | TT | Yes | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2017 | - | TT | Yes | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2017 | - | TT | Yes | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2017 | - | RPT | No | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2017 | - | RPT | No | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Sep 22, 2017 | - | RPT | No | No | - | - | - | Resolved | Oct 1, 2019 | - | |
| Feb 1, 2017 | - | RPT | No | No | - | - | - | Resolved | Mar 24, 2017 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Jan 1, 2015 | Dec 31, 2015 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2015 | - | |
| Jan 1, 2014 | Jan 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2014 | - | |
| Jan 1, 2014 | Jan 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2014 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Mar 1, 2008 | Mar 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2008 | - | |
| Mar 1, 2007 | Mar 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2007 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2004 | - |
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.