| Company | Location | Certifications | License # |
|---|---|---|---|
| Alvaro Pereyra | — | Installer (Class I) | OS0041259 |
| David M Richter | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0005869 |
| Edward Schneider | — | Installer (Class I) | OS0020204 |
| Ernest Jr Gomez | — | Installer (Class II)Designer (Site Evaluator) | OS0022771 |
| Ernesto Alejo Gomez | — | Installer (Class I) | OS0038181 |
| Gerhard Richter | — | Installer (Class I) | OS0039776 |
| Hezel A Sanchez | — | Installer (Class II)Designer (Site Evaluator) | OS0030284 |
| Jaime A Avalos | — | Installer (Class II)Designer (Site Evaluator) | OS0035631 |
| Janeth I Sanchez | — | Installer (Class II) | OS0031394 |
| Jesus J Sanchez | — | Installer (Class I) | OS0030023 |
| Luis G Pantoja | — | Installer (Class I) | OS0029573 |
| Martin G Pantoja | — | Installer (Class II)Designer (Site Evaluator) | OS0004451 |
| Ofny E Ramirez | — | Installer (Class I) | OS0038172 |
| Roy Hernandez | — | Installer (Class I)Designer (Site Evaluator) | OS0035615 |
| Sandra Richter | — | Installer (Class I) | OS0029078 |
| Steve A Sr Teran | — | Designer (Site Evaluator) | OS0033716 |
16 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in El Paso County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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