01415nam a2200265Ia 4500001000700000003000600007005001700013008004100030040001300071074001400084086002600098100003000124245036400154260004900518300005100567490005500618500003600673504005200709650009700761650008200858650009700940700002601037710004801063710003801111268639OCoLC20200624062626.0040907s2004    vauab    b   f000 0 eng d  aGIScGIS  a0624-B-020 aI 19.42/4-4:2004-51231 aHarden, Stephen L.2Local10aIonic composition and nitrate in drainage water from fields fertilized with different nitrogen sources, Middle Swamp watershed, North Carolina, August 2000-August 2001cby Stephen L. Harden and Timothy B. Spruill ; prepared in cooperation with the North Carolina Department of Environment and Natural Resources, Division of Water Quality, Groundwater Section.  a[Reston, Va.]bU.S. Geological Surveyc2004.  aiv, 14 p.bill. (some col.), col. mapsc28 cm. 0aScientific investigations reportv2004-51232Local  aShipping list no.: 2004-0266-P.  aIncludes bibliographical references (p. 12-14). 0aNitratesxEnvironmental aspectszNorth CarolinazMiddle Swamp Watershed (Pitt County)2Local 0aWaterxPollutionzNorth CarolinazMiddle Swamp Watershed (Pitt County)2Local 0aDrainagexEnvironmental aspectszNorth CarolinazMiddle Swamp Watershed (Pitt County)2Local1 aSpruill, T. B.2Local1 aNorth CarolinabGroundwater Section.2Local  aGeological Survey (U.S.)  2Local