GroundRosterJohnnie B. SextonLicensed
License details
| License number | 01494 |
| License type | Registered On-Site Wastewater (Septic) Professional |
| License status | Current, MD State Board of On-Site Wastewater Professionals |
| License expires | November 30, 2027 |
| Based in | Joppa, Harford County, Maryland 21085 |
"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 #01494 directly with the agency that issued it, 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. Look it up at the issuing agency.
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