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| Keywords: NTS - Cambric Research Site.jpg Cambric Research Site located to the west of 5-01 Short Pole Road south of 5-07 Road in the Nevada Test Site A 750-ton underground nuclear test named Cambric was conducted in alluvium sand and gravel at this site on May 14 1965 A companion test Cheshire was conducted on Pahute Mesa volcanics on February 14 1976 Both were conducted for special studies into the movement of groundwater For the Cambric test scientists drilled a well 300 feet from the ground zero and during a period of 16 years pumped four billion gallons of water to force radioactive elements to move out of the cavity made by the Cambric test It took two years of continuous pumping to move tritium 300 feet from the cavity to the well Although 98 percent of the tritium concentration was in the Cambric cavity the maximum level ever detected at the sample well was less than a tenth of a percent Radioactive elements such as strontium-90 cesium-137 plutonium and uranium were never detected during pumping activities Nevada Test Site Guide http //www nv energy gov/library/publications/historical/DOENV_715_Rev1 pdf DOE/NV-715 Federal Government of the United States PD-USGov Frenchman Flat Whetstone Cambric | ||||
