Gregory M. St. Louis, Licensed

License details

"Based in" is the city and county of the address on the business's license record.

What this license covers

• Site testing: licensed to run percolation tests and evaluate soils to determine what kind of system a site can support.

How to check this license

License details are indexed from state and county licensing records as of 2026-08-17. We shorten or reword some labels. The agency's record controls, and we do not vouch for the business itself. Before hiring, look up license #12908 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: MassDEP - Soil Evaluators, last checked 2026-08-17. Check current status at the state agency website.

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