SOIL CONTAMINATION-EARLY STUDIES JANUARY 1970 REPORT BY DR. MARTELL (Coto. Comm, For ENVIRONMENTAL INFORMATION) ON PLUTONIUM IN SotL AROUND Rocky FLATS AUGUST 1970 REPoRT By HASL ON PLUTONIUM IN SOIL AROUND THE ROCKY FLATS PLANT JULY 1971 REPORT BY Dow CHEMICAL ON PLUTONIUM LEVELS IN SOIL WITHIN AND SURROUNDING ROCKY FLATS