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Matthew S. Keen, Licensed

Licensed septic contractor based in Lusby, Calvert County, MD

On the MD licensing roster as of 2026-08-17

License details

CompanyMatthew S. Keen Construction
License number00154
License typeRegistered On-Site Wastewater (Septic) Professional
License statusCurrent, MD State Board of On-Site Wastewater Professionals
License expiresJune 30, 2028
Based inLusby, Calvert County, Maryland 20657

"Based in" is the city and county of the address on the business's license record.

How to check this license

License details are indexed from state and county licensing records as of 2026-08-17. We shorten or reword some labels. The agency's record controls, and we do not vouch for the business itself. Before hiring, look up license #00154 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. Check current status at the state agency website.

GroundRoster is an independent publisher of public licensing records, not a government agency or licensing board. The business has not claimed this listing and is not affiliated with GroundRoster. Always confirm current license standing with the issuing state or county agency before hiring.

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