TRS Group, Inc. is employee owned and the largest and most experienced provider of in situ thermal remediation (ISTR) with joint ventures in Brazil, Europe, and China. Since 2000, TRS has completed over 150 ISTR projects including 50 guaranteed projects, throughout the world. Our staff of highly experienced professionals collectively have hundreds of years of experience in the in situ remediation industry. Our project experience has allowed our staff to master the use of ISTR in complex geologies consisting of a combination of unconsolidated soils (sand, silt and clay) and bedrock systems. From rapid contaminant source zone remediation of soil and groundwater, even in bedrock, to heat enhanced plume attenuation (HEPA® Remediation), TRS provides proven remedial solutions.