John WhittakerLicensed
License details
| License number | 1940001676, 1944002547 |
| License type | Master Alternative Onsite Sewage System Installer ยท Master Alternative Onsite Soil Evaluator |
| License status | Current |
| License expires | July 31, 2027 |
| Based in | White Post, Frederick County, Virginia 22663 |
"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 #1940001676, 1944002547 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.
Source: Virginia Department of Professional and Occupational Regulation (DPOR) - regulant list, last checked 2026-08-16. Look it up at the issuing agency.
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See every listing based in Frederick County or in White Post.