About the data

• 304 septic licensees from the TCEQ Licensing Query (program OSSFOL; Installer I, Installer II, Maintenance Provider, Site Evaluator), fetched 2026-10-31. All were CURRENT.
• County means the county on the licensee's TCEQ record, not their service area.
• Labs come from the TCEQ PWS Lab Map Table (updated 03/26/2026).
• See a mistake? Licensees can update their record with TCEQ.