source
USEPA. (1992d). Supplemental Guidance to RAGS: Calculating the Concentration Term.
Publication 9285.7-081, May 1992. Intermittent Bulletin, Volume 1, Number 1.
Office of Emergency and Remedial Response, Hazardous Site Evaluation Division, OS-230.
Office of Solid Waste and Emergency Response,
U.S. Environmental Protection Agency, Washington, D.C.