TY - BOOK AU - Peters,Charles A TI - Effects of low-level radioactive-waste disposal on water chemistry in the unsaturated zone at a site near Sheffield, Illinois, 1982-84 PY - 1992/// CY - Denver, Co. PB - U.S. Geological Survey KW - Radioactive waste disposal in the ground KW - Environmental aspects KW - Illinois KW - Sheffield Region KW - Tritium KW - Analysis KW - Hazardous waste sites KW - Zone of aeration N1 - Includes bibliographical reference (p. 38-40) ER -