SAN DIEGO MUD 1
Texas — Community Water System — PWSID: TX0660003
System Information
| PWSID | TX0660003 |
| System Name | SAN DIEGO MUD 1 |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Mar 14, 1980 |
| Last Reported | Jan 6, 2026 |
Location & Contact
| State | Texas |
| City | SAN DIEGO |
| ZIP Code | 78384-3204 |
| Address | 200 S DR E E DUNLAP HWY |
| Organization | BRIONES, JOSE |
| Phone | — |
Population & Service
| Population Served | 6,291 |
| Service Connections | 2,658 |
Drinking Water Violations (18)
This water system has 18 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 30, 2025 | — | Public Notice | Other | No | No | — | — | — | Unaddressed | — | Public Notice Rule and Revised PN Rule |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Apr 1, 2024 | Jun 30, 2024 | Arsenic | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Jun 30, 2024 | Arsenic Rule |
| Apr 1, 2024 | Jun 30, 2024 | Arsenic | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Jun 30, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .011 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Jan 1, 2024 | Mar 31, 2024 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | .01 | Resolved | Mar 31, 2024 | Arsenic Rule |
| Oct 1, 2023 | Dec 31, 2023 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | .01 | Resolved | Dec 31, 2023 | Arsenic Rule |
| Oct 1, 2023 | Dec 31, 2023 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | .01 | Resolved | Dec 31, 2023 | Arsenic Rule |
| Oct 1, 2023 | Dec 31, 2023 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | .01 | Resolved | Dec 31, 2023 | Arsenic Rule |
| Jul 1, 2018 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 28, 2019 | Consumer Confidence 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.