GroundRosterDouglas E. Nicholson, Jr.Licensed
| Name | Douglas E. Nicholson, Jr. |
| Company | D.E. Nicholson Plumbing Repair, LLC |
| License number | 01658 |
| License type | Registered On-Site Wastewater (Septic) Professional |
| License status | Current — MD State Board of On-Site Wastewater Professionals |
| License expires | 2026-12-31 |
| Location | Worton, Maryland 21678 |
| Phone | (410) 348-2888 |
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How to verify this license
We publish this listing exactly as it appears in Maryland's official licensing records; we do not vouch for the business itself. Before hiring, look up license #01658 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: MD State Board of On-Site Wastewater Professionals - registered individuals, last checked 2026-08-17. Verify at the official source.
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