| Company | Location | Certifications | License # |
|---|---|---|---|
| Julia Michele Cook | — | Designer (Site Evaluator) | OS0035665 |
| Kyle Patrick Brauneck | — | Designer (Site Evaluator) | OS0037103 |
| Marian Hope Kleine | — | Installer (Class I) | OS0041280 |
| Raymond L Sr Roberts | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0019863 |
| Richard G Trotter | — | Installer (Class I) | OS0003285 |
| William Howard Chandler | — | Installer (Class II)Inspector (Maintenance Provider) | OS0039034 |
6 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Bosque County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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