SAN ISIDRO ISD
Texas - Non-Transient Non-Community - PWSID: TX2140017
System Information
| PWSID | TX2140017 |
| System Name | SAN ISIDRO ISD |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 14, 1980 |
| Last Reported | Mar 31, 2026 |
Location & Contact
| State | Texas |
| City | SAN ISIDRO |
| ZIP Code | 78588-0010 |
| Address | PO BOX 10 |
| Organization | ALVARADO, SARA, A |
| Phone | 956-605-4035 |
Population & Service
| Population Served | 227 |
| Service Connections | 25 |
Drinking Water Violations (106)
This water system has 106 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 15, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Apr 22, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Apr 22, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Apr 22, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Apr 22, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Apr 22, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Apr 22, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Jun 20, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Jun 20, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Jun 20, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Jun 20, 2025 | - | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2023 | - | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2023 | - | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2023 | - | |
| Dec 1, 2023 | Dec 31, 2023 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2023 | - | |
| Mar 21, 2022 | - | Other | No | No | - | - | - | Resolved | Jan 15, 2025 | - | |
| Mar 21, 2022 | - | Other | No | No | - | - | - | Resolved | Jan 15, 2025 | - | |
| Dec 30, 2021 | - | MR | No | No | - | TT | - | Resolved | Jul 24, 2025 | - | |
| Dec 30, 2021 | - | MR | No | No | - | TT | - | Resolved | Jul 24, 2025 | - | |
| Dec 23, 2021 | - | Other | No | No | - | - | - | Resolved | Jan 15, 2025 | - | |
| Dec 23, 2021 | - | Other | No | No | - | - | - | Resolved | Jan 15, 2025 | - | |
| Dec 31, 2020 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Dec 31, 2020 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Dec 31, 2020 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Oct 8, 2021 | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Resolved | Jul 22, 2019 | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Resolved | Jul 22, 2019 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MR | No | No | - | 4.0 mg/L | - | Resolved | Mar 31, 2009 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2008 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2008 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Mar 10, 2009 | - | |
| Jan 1, 2008 | Dec 31, 2010 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Mar 10, 2009 | - |
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.