Stephen B. Smith, P.E. Mr. Smith is the President and Chief Operations Officer of Hydro Geo Chem, Inc. He has more than 28 years of experience in solid waste engineering in the United States and in other countries including Argentina, Chile, Columbia, Israel, Mexico, Peru, and South Korea. Experience includes developing, planning, designing and implementing various programs for collection, transfer, treatment, landfilling, bioreactor design, landfill gas collection and control, landfill gas to energy, and recovery, recycling, composting, and marketing of various byproducts. Mr. Smith compliments these programs with experience in solid waste management, landfill construction, environmental engineering, and compliance/safety training, including extensive experience in management of landfill and transfer operations.

 

James Peck, P.E. Mr. Peck is HGC’s Vice President of Engineering and in-house legal counsel. Mr. Peck has 12 years of experience in solid waste engineering, including landfill gas evaluation, gas collection system design, base lining and final cover system design, construction management, and regulatory permitting issues. He serves on the Rules and Regulations Subcommittee of the Landfill Gas Section of the Solid Waste Association of North America (SWANA) and as Legislative Liaison for the Arizona Chapter of SWANA. Mr. Peck is licensed as a Civil Engineer in Arizona, California, Florida, Georgia, Louisiana, and Washington. He is also licensed as an attorney in Arizona.

 

Harold Bentley, Ph.D. Dr. Bentley is Hydro Geo Chem, Inc’s Principal Scientist and is a recognized expert in the fields of groundwater chemistry, environmental tracers, and the fate of organic contaminants in the subsurface. He is the principal developer of HGC's Baro-Pneumatic Method for measuring LFG generation, and has presented several presentations at national and international seminars related to the measurement of landfill gas generation and emissions modeling.

 

Richard Petrus M.S. Mr. Petrus has developed Arizona-specific solid waste management expertise covering landfill design, permitting, construction management, lateral expansion, and closure. Additionally, he has managed methane monitoring and abatement projects at several landfill sites.

 

 

Stewart Smith, M.S. Mr. Smith joined Hydro Geo Chem, Inc. in 1989 as a Hydrogeologist. With over 23 years experience, Mr. Smith performs numerical modeling of baro-pneumatic data for estimating landfill gas generation at landfill facilities as well as the performance of gas collection systems at the conceptual design level.

 

 

Warren Thompson, B.S. Mr. Thompson manages construction and installation of remedial systems for HGC's landfill projects. He has installed more than 10 large scale SVE systems with capabilities ranging from 50 to 2,000 scfm and 3 groundwater pump-and-treat systems used to remediate VOC contamination beneath landfills.