About TerraTherm > Leadership & Management Team  



Core Values

    Leadership & Management Team

Research & Development

Job Openings

Sustainability Policy


Leadership and Management Team

John M. Bierschenk, P.G. is TerraTherm's Co-Founder and President. Mr. Bierschenk has overall responsibility for strategic and general management of the company. He has authored papers and several patents related to in-situ thermal remediation. Mr. Bierschenk also serves as Principal-In-Charge on projects. Experience includes 28 years of technical, strategic and business management experience in the environmental and energy businesses; 10 years as an environmental consultant with ENSR Consulting and Engineering; and the general manager of ORS Environmental Equipment (a division of GTI). Holds a BS in Geology and an MBA; Professional Geologist in Pennsylvania (USA), and formerly an LSP in Massachusetts.

Gorm Heron, Ph.D. is TerraTherm's Senior Vice President and Chief Technology Officer. Dr. Heron has over 20 years of experience in the environmental engineering field, with 16 years in design and management of ISTR projects, focusing on the treatment of CVOC and DNAPL sites in soil and fractured rock. Based in TerraTherm's Bakersfield, CA office, Dr. Heron provides technical leadership and oversight in the design and application of ISTR, SEE and combined ISTD/SEE/ERH systems. He is also TerraTherm's lead on international ISTD projects. From 1997-2004, Dr. Heron served as Principal Environmental Engineer with SteamTech Environmental Services, Inc.

James P. Galligan, P.E.is TerraTherm's Vice President of Projects. Mr. Galligan oversees all of TerraTherm's Project Execution and serves as Project Manager for TerraTherm's largest project. He has over 20 years of experience with in-situ and ex-situ remediation system design, installation, operation and troubleshooting, including over 10 years experience with ISTR projects. Mr. Galligan has conducted numerous remedial technology pilot tests, feasibility studies and life-cycle cost evaluations. He has extensive experience in cost estimating and health and safety management. Mr. Galligan has been instrumental in each of the detailed remedial design and implementation efforts that TerraTherm has carried out.

Ralph S. Baker, Ph.D.

Ralph S. Baker, Ph.D. is TerraTherm’s Co-Founder, and former Chairman and Chief Science Officer (Retired). Dr. Baker led the company's early development and application of the ISTD technology. He coninues to be a part time business development and technology advisor. A soil physicist with over 35 years of experience, Dr. Baker has authored over 70 publications on in-situ remediation, including four books. Dr. Baker led the development of three comprehensive Engineer Manuals written for the U.S. Army Corps of Engineers on in-situ remediation: Soil Vapor Extraction (SVE) and Bioventing (1996); In Situ Air Sparging (1997); and Multiphase Extraction (1999). He has served as technical advisor to government and industry on many remediation projects.

David B. Allworth is TerraTherm's Chief Financial Officer. Mr Allworth has more than 30 years' experience in corporate financial management & accounting. Prior to joining TerraTherm in 2012, Mr. Allworth was the CFO for InEnTec Inc., a waste-to-energy technology company where he led efforts to raise more than $100 million through the issuance of equity, convertible debt and joint venture partnership interests. He has extensive experience in strategic planning, financial analysis, international tax & finance, and financial systems implementation. He practiced as a CPA with KMG Main Hurdman prior to that firm merging into KPMG Peat Marwick.



Phone + 1 978 730 1200

©2015 TerraTherm, Inc. All Rights Reserved.      Privacy Policy      Contact Information