Progressive Onsite Septic LLCLicensed

License details

"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.

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 #L4145 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.