GroundRoster
Home › Texas › Washington County › John Ross Kettler

John Ross KettlerLicensed

Licensed septic contractor based in Washington County, TX

License details

License numberOS0041072
License typeOSSF Installer I
License statusCurrent, TCEQ OSSF licensing export (exported 2026-08-17)
License expiresApril 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

  • 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 #OS0041072 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

Riley Logan SaundersLicensed

Septic System Installation
Washington County, TX · License #OS0038711

Mark KettlerLicensed

Septic System Installation · Perc Test and Soil Evaluation
Washington County, TX · License #OS0000801, OS0009762

Mark Luke MarzahnLicensed

Perc Test and Soil Evaluation
Washington County, TX · License #OS0039044

Justin R FlasowskiLicensed

Septic System Installation
Washington County, TX · License #OS0009246

William C HegarLicensed

Septic System Installation · Perc Test and Soil Evaluation
Washington County, TX · License #OS0005314, OS0010144

See every listing based in Washington County.