Welcome

TRC Companies, Inc. is a customer-focused company that creates and implements sophisticated and innovative solutions to the challenges facing America's energy, transportation, environment, and infrastructure markets. The company is the leading provider of technical, financial, risk management, and construction services to industry and government clients across the country.

The Atmospheric Studies Group (ASG) provides research and consulting services in the environmental and physical sciences. We specialize in air quality model development, atmospheric boundary layer research, air quality permitting and licensing, and regulatory consulting.

ASG's principals and supporting staff are highly qualified scientists and engineers with many years of professional experience. We have developed and evaluated numerous meteorological and dispersion models for both public agencies and private industries. These ongoing efforts serve to maintain our position at the leading edge of modeling and scientific technology and better enable us to assist clients in planning for and solving environmental problems. In addition, ASG's commitment to developing and using the latest scientific advances is supported by our strong staff credentials in managing and conducting environmental research projects and by a corporate recognition that command of state-of-the-science technology is essential in resolving today's complex environmental issues.