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Septic Registry

Licensed septic companies in Fairfax County, Virginia

4 businesses on Virginia’s septic licensing records give Fairfax County as its address, alongside 15 individually licensed onsite professionals.

Licensed businesses based in Fairfax County

Individually licensed onsite professionals in Fairfax County

Virginia licenses people as well as companies. These are the named professionals the state has licensed, listed with the licence they hold and when it expires. They are usually employed by one of the businesses above.

Licensed onsite professionals in Fairfax County
NameLicenceCityExpires
Boris A Marenco MontoyaMaster Alternative Onsite Sewage System InstallerNo. 002944AlexandriaJuly 31, 2028
Dan SongMaster Conventional Onsite Soil Evaluator · Journeyman Alternative Onsite Sewage System OperatorNo. 001558FairfaxJanuary 31, 2027
Eric M HoppisMaster Alternative Onsite Soil Evaluator · Master Alternative Onsite Sewage System Operator · Master Conventional Onsite Sewage System InstallerNo. 001428Falls ChurchJune 30, 2027
Farzad FarzayeeMaster Alternative Onsite Sewage System InstallerNo. 002970FairfaxJuly 31, 2028
John H Dickson IIMaster Alternative Onsite Soil Evaluator · Master Conventional Onsite Sewage System OperatorNo. 001213FairfaxAugust 31, 2026
Katherine M WilliamsonMaster Alternative Onsite Soil Evaluator · Master Alternative Onsite Sewage System Operator · Master Alternative Onsite Sewage System InstallerNo. 001286LortonNovember 30, 2027
Kevin R WastlerMaster Alternative Onsite Soil EvaluatorNo. 001332FairfaxDecember 31, 2027
Lester V Dove JRMaster Alternative Onsite Sewage System InstallerNo. 001552AlexandriaDecember 31, 2026
Orion MajewskiMaster Alternative Onsite Sewage System OperatorNo. 001159LortonAugust 31, 2026
Roy M Hunter IIMaster Alternative Onsite Soil EvaluatorNo. 001434FairfaxMarch 31, 2028
Roy M Hunter IIMaster Alternative Onsite Sewage System InstallerNo. 002400FairfaxApril 30, 2028
Shawn P CarmanMaster Alternative Onsite Soil Evaluator · Master Alternative Onsite Sewage System OperatorNo. 001468SpringfieldJanuary 31, 2028
Whitney W WrightMaster Alternative Onsite Soil Evaluator · Master Conventional Onsite Sewage System Operator · Master Conventional Onsite Sewage System InstallerNo. 001133RestonJune 30, 2027
William F Sledjeski JRMaster Alternative Onsite Soil Evaluator · Master Conventional Onsite Sewage System Operator · Master Alternative Onsite Sewage System InstallerNo. 001012CentrevilleDecember 31, 2026
Yousef FarzayeeMaster Alternative Onsite Sewage System InstallerNo. 002969FairfaxJuly 31, 2028

Who handles septic permits in Fairfax County

Virginia licenses the contractor, and every listing here carries the licence number, so DPOR's lookup will confirm its status in seconds. The Virginia Department of Health, which permits the work, does not license the contractor.

How to verify a septic licence before you hire →

Towns in Fairfax County

Where in the county each licensed business is based.

Licensed companies in neighbouring counties

A Virginia septic licence is valid statewide, so a company listed in an adjoining county can legally do the work in Fairfax County.

Records as published August 26, 2026. A licence can lapse at any time — confirm with DPOR's own License Lookup before hiring. Report a correction.