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Douglas L. MonningerLicensed

Licensed septic contractor in Smithsburg, MD

NameDouglas L. Monninger
CompanyC.R. Semler, Inc
License number01081
License typeRegistered On-Site Wastewater (Septic) Professional
License statusCurrent — MD State Board of On-Site Wastewater Professionals
License expires2026-12-31
LocationSmithsburg, Maryland 21783
Phone(301) 824-2780

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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 #01081 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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