GroundRosterDawn TuomalaLicensed
License details
| License number | 00638 |
| License type | Professional Engineer, Septic System Designer |
| License status | Active, NH DES Designer/Installer roster |
| Based in | Merrimack, Hillsborough County, New Hampshire 03054 |
"Based in" is the city and county of the address on the business's license record.
What this license covers
- Design: licensed to size and lay out a septic system for a specific site and soil condition.
How to verify this license
We publish the license details exactly as they appear in the official licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #00638 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.
Source: NH DES - Septic System Designers & Installers, last checked 2026-08-16. Verify at the official source.
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