01655nem 2200457Ia 450 991069657810332120080414114742.0(CKB)5470000002379068(OCoLC)223412253(EXLCZ)99547000000237906820080414d2005 ua engb|||||||||||||||||||||durcn|||||||||crdrdacontentcrdamediacrrdacarrierNitrate in ground water[electronic resource] using a model to simulate the probability of nitrate contamination of shallow ground water in the conterminous United States /by Kerie J. Hitt and Bernard T. NolanReston, Va. :USGS National Water-Quality Assessment Program,2005.1 electronic map HTML, digital, PDF fileScientific investigations map ;2881Title from HTML index page (viewed on Apr. 14, 2008)Includes text, col. ill., and ancillary maps.Nitrate in ground water GroundwaterPollutionUnited StatesMapsAgricultural pollutionUnited StatesMapsMaps.lcgftGroundwaterPollutionAgricultural pollutionHitt Kerie J1382667Nolan Bernard T.1954-1383937Geological Survey (U.S.)National Water-Quality Assessment Program (U.S.)GPOGPOBOOK9910696578103321Nitrate in ground water3455902UNINA