| Company | Location | Certifications | License # |
|---|---|---|---|
| Charlotte Cowger | — | Installer (Class II)Inspector (Maintenance Provider) | OS0039962 |
| Cody W Goodwin | — | Installer (Class II) | OS0036049 |
| Colby Seale | — | Installer (Class II)Inspector (Maintenance Provider) | OS0040622 |
| Donald Tyler Powell | — | Installer (Class I) | OS0041398 |
| Donnie J Reum | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0022903 |
| Gordon L Meadows | — | Installer (Class II)Inspector (Maintenance Provider) | OS0032094 |
| Jonathan N Lamas | — | Installer (Class II)Inspector (Maintenance Provider) | OS0034763 |
| Perry Wayne Clark | — | Installer (Class I) | OS0040896 |
| Trisha Basham | — | Designer (Site Evaluator) | OS0036279 |
| William B Baker | — | Installer (Class II)Designer (Site Evaluator) | OS0017635 |
10 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in San Jacinto County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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