Sarah Foster is a Principal at the scientific consulting firm CPF Associates, LLC, in the Washington DC area. She has a Masters Degree in Environmental Health Sciences from the Harvard University of Public Health and over 30 years of consulting experience in the environmental health science field. She focuses on developing strategies for and conducting health and environmental assessments related to waste technologies, waste sites and industrial facilities. She has managed or performed over 100 comprehensive risk assessment projects and other types of health and odor evaluation studies for municipal solid waste and hazardous waste landfills, waste-to-energy facilities, hazardous waste incinerators, transfer stations and contaminated sites. She has extensive experience in multiple chemical, multiple pathway risk assessments, assessment of public health, occupational and odor impacts based on environmental and workplace monitoring data, risk and exposure assessments of indoor water uses, environmental fate and transport modeling, and risk communication.