Work with Phase

Phase Separation Science (PSS) is a certified environmental analytical testing laboratory with expertise in a broad range of testing applications for organic and inorganic analysis parameters. The go to lab for:

  • Responsive Service
  • On Time Results
  • Reliable Project Management
The Environmental Lab of Choice for EPA Region III States
Pennsylvania, Maryland, Delaware, Virginia & West Virginia

Client Testimonials


It has been my pleasure to work with Phase Separation Science for over 20 years. They have always provided quality, dependable service on which I have come to rely. I think of them not as a contract laboratory, but an integral member of the project team.

Chuck Georgius, CHMM, VP

Phase Separation Science has been my lab of choice since
I starting working with them in the mid-1990s.  No doubt that they provide value to my projects….value being a combination of quality, flexibility, responsiveness, and cost, all of which Phase hits dead on…… benefiting my clients and helping me achieve their business objectives.

Leonard Rafalko, Partner
ERM Group, Inc.

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

Copyright © 2020 Phase Separation Science, Inc.
Site Designed by: DC Web Designers, a Washington DC web design company