A data base of nitrate in ground-water samples from the conterminous United States
Data-base of surface and ground water samples analyzed for deuterium and oxygen-18 from the western states of Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming
Philip A. Baedecker
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Jeffrey N. Grossman
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Kim P. Buttleman
Alan H. Welch
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Sharon A. Watkins
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Dennis R. Helsel
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Michael J. Focazio
G. W. Luttrell
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M.L. Hubert
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C.R. Murdock
S.D. Ludington
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D.P. Cox
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R.B. McCammon
John A. Izbicki
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Russell U. Johnson
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Justin T. Kulongoski
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Steven Predmore