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Mark KettlerLicensed

Licensed septic contractor based in Washington County, TX

License details

License numberOS0000801, OS0009762
License typeOSSF Installer II · OSSF Site Evaluator
License statusCurrent, TCEQ OSSF licensing export (exported 2026-08-17)
License expiresSeptember 30, 2029
Based inWashington County, Texas

"Based in" is the city and county of the address on the business's license record.

What this license covers

  • Site testing: licensed to run percolation tests and evaluate soils to determine what kind of system a site can support.
  • Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.

How to verify this license

We publish the license details exactly as they appear in the public licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #OS0000801, OS0009762 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: Texas Commission on Environmental Quality (TCEQ) - OSSF occupational licensing, last checked 2026-08-17. Look it up at the issuing agency.

Other licensed septic contractors based in Washington County

Luis Javier SanchezLicensed

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Treyton TillmanLicensed

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Mark Luke MarzahnLicensed

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Washington County, TX · License #OS0039044

Justin V FlasowskiLicensed

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Washington County, TX · License #OS0000072, OS0010376

Miguel Angel PerezLicensed

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Washington County, TX · License #OS0039175

See every listing based in Washington County.