GroundRosterAdam R. RikerLicensed
| Name | Adam R. Riker |
| License number | 4590 |
| License type | Title 5 System Inspector |
| License status | Approved — MassDEP Title 5 Approved System Inspectors list |
| License expires | 2027-06-30 |
| Based in | S. Yarmouth, Massachusetts |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- 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 Massachusetts's official licensing records; we do not vouch for the business itself. Before hiring, look up license #4590 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: MassDEP Title 5 - Approved System Inspectors, last checked 2026-08-17. Verify at the official source.
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