"Methods for the Determination of Organic Compounds in Drinking Water", USEPA, Publication No. EPA-600/4-88-039 (December 1998).
"Methods for the Determination of Organic Compounds in Drinking Water, Supplement II", USEPA Publication No. EPA/600/R-92/129 (August 1992).
"Methods for the Determination of Organic Compounds in Drinking Water, Supplement III", USEPA Publication No. EPA/600/R-95/131 (August 1995).
"Test Methods for Evaluating Solid Wastes, Physical/Chemical Methods", USEPA Publication Number SW 846 (Third Edition, Final Update III, December 1996), as amended by Updates I, IIA, and III (Document No. 955-001-00000-1).
"Illinois Agronomy Handbook 2001-2002", University of Illinoi at Urbana-Champaign, College of Agricultural, Consumer and Environmental Sciences (December 2000).
Ill. Admin. Code tit. 8, § 258.40
Amended at 26 Ill. Reg. 17155, effective November 18, 2002