Keith Piontek is a professional engineer with 30 years of experience in the assessment and management of environmentally impaired railroad properties. He leads TRC’s LNAPL site characterization technical support group and manages TRC’s St. Louis and Kansas City offices. Keith has authored 15 technical papers on topics dealing with site remediation policy, strategy, and technologies. Topics have included natural attenuation, in situ bioremediation, the technical practicability of groundwater restoration, and risk-based corrective action. Contact Keith at firstname.lastname@example.org.