Chain of custody (pdf)

Chain of custody instructions

Chain of Custody  (EXCEL)



GSEL understands that accurate analytical data is one of the most crucial elements for the success of an environmental project. To ensure a project's data quality objectives are met, GSEL provides a superior standard of service using the latest technological advances and commitment to customer service..

GSEL's standard services include organic analyses using a variety of GC and GC/MS and test methods and trace metals analyses using ICP and Cold Vapor AA. GSEL also provides a full range of wet chemistry analyses for nutrients, BOD, COD and virtually all other general chemistry parameters.