GroundRosterWoodland Engineering
License details
| Company | David M Gustafson PE |
| License number | L1162 |
| License type | SSTS Designer · Inspector · Service Provider |
| License status | Current |
| License expires | November 3, 2026: the expiry date in our copy (as of October 3, 2026) has passed. Check with the issuing agency. |
| Based in | Maplewood, Ramsey County, Minnesota 55109 |
"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.
- Inspection: licensed to inspect existing septic systems; the license you want for a home-purchase inspection.
- Service: licensed to operate and service advanced treatment systems on an ongoing contract.
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 #L1162 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.
Source: Minnesota Pollution Control Agency (MPCA) - SSTS licensed business list, last checked 2026-10-03. Look it up at the issuing agency.
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See every listing based in Ramsey County or in Maplewood.