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Columbia Design GroupLicensed

Licensed septic contractor based in Boston, MA

License details

License number12795
License typeSoil Evaluator
License statusActive, MassDEP Soil Evaluators list
License expiresJune 30, 2028
Based inBoston, Massachusetts

"Based in" is the city 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 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 #12795 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. Look it up at the issuing agency.

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