Mills, Patrick C. <br/><br/>
Water and tritium movement through the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois, 1981-85 / 
by Patrick C. Mills and Richard W. Healy 
 - Washington, D.C. :  U.S. Government Printing Office, U.S. Geological Survey,  1993 
 - vi, 72 p. :  ill., maps ;  28 cm. 
 - U.S. Geological Survey water-supply paper ;  2386 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radioactive waste disposal in the ground--Environmental aspects--Illinois--Sheffield Region<br/>Groundwater flow--Illinois--Sheffield Region<br/>Radioisotopes--Migration--Illinois--Sheffield Region<br/>Tritium<br/>Hazardous waste sites--Zone of aeration--Illinois--Sheffield Region
<br/><br/><label>Dewey Class. No.: </label>628.168509773