GCAL is a ISO17025, NELAP and DoD ELAP certified, full-service analytical laboratory with over 3 decades of experience in ass ... isting both public and private sector clients. From industrial and petrochemical concerns to the Environmental Protection Agency and the Department of Defense, our team has worked with a diverse range of businesses and governmental agencies. The result is an extensive knowledge and understanding of various client processes and operations, regional and federal regulatory standards and requirements, emerging global trends – and more importantly, experience – that sets us apart as a single-point source for analytical laboratory services. read more