| Company | Location | Certifications | License # |
|---|---|---|---|
| Clara Salazar | — | Installer (Class I) | OS0029446 |
| Danny R Ii Mowrey | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0030281 |
| Hans E Mowrey | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0005101 |
| Jose L Jr Simental | — | Installer (Class II) | OS0035098 |
| Pablo Simental Moreno | — | Installer (Class I) | OS0037369 |
| Richard Lewis Beck | — | Designer (Site Evaluator) | OS0010529 |
| Ricky W Widner | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0019906 |
7 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Young County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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