Phase Separation Science is accredited by the nationally recognized National Environmental Laboratory Accreditation Program (NELAP). We maintain accreditation in EPA Region III States which includes Pennsylvania, Maryland, Virginia, West Virginia, Delaware and the District of Columbia through reciprocity. We are permitted through the U.S. Department of Agriculture to import foreign soil for analysis and are certified by the Metropolitan Washington Airport Authority as a Local Disadvantaged Business Enterprise (LDBE).


State of Maryland, Department of the Environment, Water Supply Program, State of Maryland Water Quality Laboratory, Certification #179.  Reciprocity agreement in Delaware and Washington, DC.

Commonwealth of Pennsylvania, Department of Environmental Protection, National Environmental Laboratory Accreditation Program (NELAP).  Laboratory ID #68-3330

Commonwealth of Virginia, Department of General Services, Division of Consolidated Laboratory Services, National Environmental Laboratory Accreditation Program (NELAP).  Laboratory ID #460156

State of West Virginia, Department of Environmental Protection, Certificate #303

U.S. Department of Agriculture Foreign Soil Permit #P330-12-00268.

Metropolitan Washington Airports Authority (MWAA) Local Disadvantaged Business Enterprise, LDBE Certification #LD1997-0041-2015.



Directions to the Lab


6630 Baltimore National Pike
Baltimore, MD 21228
Phone: 410.747.8770 or 800.932.9047
Fax: 410.788.8723
Email: info@phaseonline.com

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