Allison Geiselbrecht, PhD


Dr. Allison Geiselbrecht is a microbiologist with more than 20 years experience coordinating projects involving interdisciplinary teams of scientists, engineers, and natural resource experts from study design and field work to agency reporting.

Allison assists industrial and municipal clients including ports, harbors, and waterway-based industries with technical evaluations, regulatory strategy analysis and development, and negotiations with governmental agencies. She has experience with investigations completed under Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), Resource Conservation and Recovery Act (RCRA), and Washington State regulations including the Model Toxics Control Act, the Puget Sound Dredged Material Management Program and Washington State Sediment Management Standards.

Allison’s expertise is in the characterization of sediment and water chemistry and biodegradation of pollutants such as polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and pesticides. She has applied her chemistry and geochemistry knowledge to source control evaluations for operational facilities, evaluating waste streams most likely to cause environmental recontamination. She often assists clients with stormwater compliance, including source control and treatment technology evaluations, as well as litigation support for Clean Water Act lawsuits.

Allison has authored numerous scientific papers and is an industry expert on a variety of environmental chemistry topics. She holds a doctorate in Microbiology from the University of Washington and an undergraduate degree in Biochemistry from Texas A&M University.