Thomas J. Rappolt

SCS Engineers, Inc. provides engineering, construction, long term operations, and maintenance services. It is an environmental consulting and contracting firm serving public and private clients across the nation and around the world. The firm specializes in the assessment, design, permitting, construction, operation and maintenance, and monitoring of sustainable environmental solutions and facilities. It offers waste management and environmental services. SCS Engineers was founded by Robert P. Stearns, Tom E. Conrad, and Curt J. Schmidt in 1970 and is headquartered in Long Beach, CA.

Tracer Environmental Sciences & Technologies, Inc. provides environmental engineering, consulting and monitoring services. It provides environmental capability services including ambient air monitoring, counter terrorism support services, environmental advisory services, environmental construction, permitting and compliance, risk management and safety, tracer sciences and special studies. The company was founded in June, 1996 and it is headquartered in San Marcos, CA.