Michael C. Brooks Dr. Brooks is an Environmental Engineer in EPA’s Office of Research and Development, National Risk Management Research Laboratory. His research has included experimental and theoretical studies of air sparging flow patterns, innovative dense nonaqueous-phase liquid (DNAPL) characterization and remediation techniques, and energetic contaminant remediation. His research area is DNAPLs and flux-based site management. Most recently, he has been involved with the evaluation of DNAPL remedial performance using mass flux measurements. This has included field- and laboratory-based studies that investigate the response of contaminant flux to DNAPL source mass removal.