David Heinze has more than 18 years of experience in environmental engineering, with a focus on site investigation and remediation. His expertise ranges from performing and managing initial due diligence through subsurface investigations and remedial actions at complicated sites under a variety of state and federal programs, including large Superfund remedial investigations and remedial actions. He has experience in the investigation and remediation of former mining sites, and has managed wastewater treatment plants at former mining sites for the removal of metals-contaminated water. He has provided expert witness testimony in matters involving the distribution, fate and source of soil and groundwater contamination. In addition, he has significant experience in the management of stream-bank stabilization and ecosystem restoration projects.