Dave Himmelheber is a Senior Principal Engineer based in New Jersey with more than 17 years of experience with contaminated sediments focused on site investigations and remedial design for complex, multiple stakeholder projects.
His experience includes leading complicated site investigations, developing remedial designs, and managing complex projects. Dave has performed research focused on biogeochemistry and contaminant fate in capped sediments that has been directly applicable to project sites to support modeling of contaminant fate and transport within caps, ebullition-facilitated transport, and evaluations of mercury fate following cap placement.
Providing value to multiple sediment remediation projects, Dave's detailed technical understanding of site conditions has been needed. He has made significant contributions to several large sediment remediation projects by leading multifaceted field sampling programs, designing and directing treatability and pilot studies, overseeing porewater evaluations, and leading the development of remedial design drawings and calculations.
Dave is the project coordinator and project manager for the Gowanus Canal Superfund Site remedial design in which he is responsible for oversight of technical direction, budget control, schedule, resourcing, and EPA communications. Under his management, the project has successfully met aggressive schedule requirements from EPA, delivering high-quality technical design deliverables while staying within budget. He has initiated and overseen project controls practices to track and manage schedule and budget progress to improve cost certainty and control. Dave has also been directly engaged in developing remedial design for bulkhead support, dredging, in situ stabilization, capping, and site staging.
He has experience on multiple projects designing and executing treatability studies and pilot studies that have covered a wide range of remediation approaches. Pilot studies have included designing, implementing, and monitoring thin-layer placement of sand and amendments on mudflats and marsh settings and demonstrating the constructability and effectiveness of the technology at the site. He has supported the development of a pilot study of bulkhead support, dredging, and capping which provided site-specific information supporting subsequent design phases. He has also contributed to the development of treatability study services and the development of passive sampling tools for monitoring of organics and metals.