Fredrick Dolislager

Fred Dolislager has a B.S. in Natural Science from Bryan College, where he graduated in 1989. He has supported the environmental restoration activities on the Oak Ridge Reservation since 1988. Fred’s career began in an environmental laboratory, transitioned into site-specific risk assessment and developed into managing the calculation of environmental screening levels for Superfund. These environmental screening levels are the national standard for chemicals and radionuclides in air, water, soil and biota. His exposure assessment models have also been adapted to support the assessment of residual chemical warfare agents on surfaces, the radiation risk from sources inside and outside buildings and the intrusion of vapors from contaminated soil and groundwater into buildings. Most of the screening levels are also provided on the internet in an interactive system that allows users to change input parameters and calculate site-specific screening levels or cleanup levels. In addition to providing screening levels, the internet-based tools also allow for calculation of the risk from exposure to known media concentrations. These tools support remediation efforts for many state governments, national government agencies and international agencies. Notable projects are: The Risk Assessment Information System (RAIS), Regional Screening Levels for Chemical Contaminants at Superfund Sites (RSLs), Preliminary Remediation Goals for Radionuclides for Superfund (PRGs), Dose Compliance Concentrations for Radionuclides for Superfund (DCCs), Building Preliminary Remediation Goals for Radionuclides for Superfund (BPRGs), Dose Compliance Concentrations for Radionuclides in Buildings for Superfund (BDCCs), Surface Preliminary Remediation Goals for Radionuclides for Superfund (SPRGs), Dose Compliance Concentrations for Radionuclides in Outdoor Surfaces for Superfund (SDCCs), Removal Action Levels for Chemicals for OEM (RMLs), Radiation Conversion (converts activity to cpm), and Radionuclide Decay Chain. Projects currently underway: Cleanup Level calculator for State of Alaska, Risk calculator for the State of Alaska, Vapor Intrusion calculator for Superfund, chemical forward risk calculator for Superfund, and updates to Spatial Analysis and Decision Assistance (SADA) software.