GroundRosterWilliam L MastroLicensed
License details
| License number | 32.003909 |
| License type | Sub-Surface Sewage Cleaner |
| License status | Active |
| License expires | September 30, 2027 |
| Based in | Newtown, Western Connecticut Planning Region, Connecticut 06470 |
"Based in" is the city and county of the address on the business's license record.
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 #32.003909 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.
Source: Connecticut DPH - eLicense credential extract (well & septic license types), last checked 2026-10-17. Look it up at the issuing agency.
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