GroundRosterJohn-michael A HammerLicensed
| Name | John-michael A Hammer |
| License number | 1944002505 |
| License type | Master Alternative Onsite Sewage System Installer |
| License status | Current |
| License expires | 2027-01-31 |
| Location | Chesapeake, Virginia 23320 |
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What this license covers
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
How to verify this license
We publish this listing exactly as it appears in Virginia's official licensing records; we do not vouch for the business itself. Before hiring, look up license #1944002505 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Virginia Department of Professional and Occupational Regulation (DPOR) - regulant list, last checked 2026-08-16. Verify at the official source.
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