GroundRosterGranite Inspection Group
| Contact on the state list | Michael Christophides |
| Certificate or license number | HIC.0699730 |
| Listed as | Radon Measurement and Mitigation Professional |
| Status | Nationally certified, on the Connecticut DPH list; the list is not an endorsement |
| Based in | Poughkeepsie, Dutchess County, New York |
"Based in" is the city and county of the address on the business's license record. That can be a mailing address; it doesn't tell you where the business works.
How to verify this license
We publish these details as they appear on the state list. Being on it is not a state license, and we do not vouch for the business. Before hiring, ask to see a current radon certification and a current certificate of insurance.
Checked against Connecticut DPH radon measurement and mitigation professional lists, last checked 2026-11-02. See the issuing agency.
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