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7 register matches verified

Septic companies in San Antonio, TX

23 septic companies on record in San Antonio, TX, Bexar County. 7 have a register match verified against the Texas roster.

Companies
23
Register match verified
7
County
Bexar

What the ground in San Antonio is like

The USDA soil survey rates mapped ground in San Antonio for septic drain-field suitability across roughly 507 square miles. About 94% of the rated ground is classed "Very limited", meaning the soil has one or more features unfavorable for a conventional drain field, and the limits generally cannot be overcome without major soil reclamation, special design or expensive installation.

In San Antonio, the leading limit is slow water movement: effluent does not drain through the soil fast enough, so a conventional field can back up or pond when the ground cannot keep pace. The survey flags that limit on about 68% of the rated ground here.

The limiting features the survey records most often here:

  • Slow water movement68.1%
  • Depth to bedrock38.7%
  • Large stones19.2%
  • Slope13.6%

This is survey data for mapped areas, not a substitute for a site evaluation on your own lot. Conditions on a single parcel can differ from the map.

USDA NRCS SSURGO, ENG Septic Tank Absorption Fields · 93.9% Very limited · Slow water movement · 90 map units · 506.72 sq mi · read 2026-08-30

Septic companies in San Antonio

Ordered by verification score. The score counts records we could check and is not a judgment about workmanship.

Nearby

All septic companies in Texas · Bexar County

How these are ranked

By verification score, out of 100, across six checks published in full on how we rank. No company paid to appear here and none can pay to rank higher.