Andrea Krevinghaus, PE, is a senior engineer and the focus area lead for air sparge and soil vapor extraction within Arcadis. Ms. Krevinghaus has almost 10 years of professional experience with Arcadis conducing and managing remedial investigations, evaluating remedial alternatives and developing remedial designs. Her technical experience primarily includes management of environmental remediation projects involving the design, implementation and operation of various in-situ and ex-situ treatment technologies.