GroundRosterTim CostnerLicensed
| Name | Tim Costner |
| License number | 13159 |
| License type | Septic System Installer |
| License status | Active — TDEC licensed |
| County | Cocke County, Tennessee |
| Work types on the roster | Conventional |
| Phone | (423) 608-2493 |
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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 Tennessee's official licensing records; we do not vouch for the business itself. Before hiring, look up license #13159 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Tennessee Dept. of Environment & Conservation - Active Septic Installers & Pumpers, last checked 2026-08-17. Verify at the official source.
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