[en] Stream sediment and stream water samples were collected from small streams at 1430 sites or at a nominal density of one site per 14 square kilometers (five square miles) in rural areas. Ground water samples were collected at 791 sites or at a nominal density of one site per 25 square kilometers (ten square miles). Neutron activation analysis (NAA) results are given for uranium and 16 other elements in sediments, and for uranium and 9 other elements in ground water. Key data from ground water sites include (1) water chemistry measurements (pH, conductivity, and alkalinity), (2) well depth, (3) elemental analyses (U, Br, Cl, F, Mg, Mn, Na, and V). Supplementary data include site descriptors (well age, frequency of use of well, etc.) and tabulated analytical data for Al and Dy. Key data from stream sediment sites include (1) water quality measurements (pH, conductivity, and alkalinity), and (2) important elemental analyses (U, Th, Hf, Al, Ce, Fe, Mn, Na, Sc, Ti, and V). Supplementary data from stream sediment sites include sample site descriptors (stream characteristics, vegetation, etc.) and additional elemental analyses