GroundRosterTheis Septic ServiceLicensed
| Name | Theis Septic Service |
| Company | Anthony K Theis |
| License number | L1771 |
| License type | SSTS Maintainer (Pumper) |
| License status | Current |
| License expires | 2027-05-23 |
| Based in | Winona, Minnesota 55987 |
| Phone | (507) 454-2436 |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- Pumping / cleaning: licensed to pump out and clean septic tanks, service them, and haul the waste.
How to verify this license
We publish the license details exactly as they appear in Minnesota's official licensing records; we do not vouch for the business itself. Before hiring, look up license #L1771 directly with the state, 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 2026-08-17. Verify at the official source.
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