GroundRosterWBP ContractingLicensed
License details
| Company | Wilder Petersen |
| License type | Licensed Septic System Installer |
| License status | Active, ND DEQ licensed (DEQ) |
| Based in | Williston, Williams County, North Dakota 58802 |
"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 this license directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.
Source: North Dakota DEQ - Licensed Septic System Installers, last checked 2026-08-17. Look it up at the issuing agency.
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