GroundRosterMark C. BowesLicensed
| Name | Mark C. Bowes |
| Company | Larry Hills & Sons Excavating Inc |
| License number | 00867 |
| 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 | Great Mills, Maryland 20634 |
| Phone | (301) 994-9700 |
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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 #00867 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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