Download or read book Monthly Variability and Possible Sources of Nitrate in Ground Water Beneath Mixed Agricultural Land Use Suwannee and Lafayette Counties Florida written by Brian G. Katz and published by . This book was released on 2000 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry of Ground Water in the Silver Springs Basin Florida with an Emphasis on Nitrate written by G. G. Phelps and published by DIANE Publishing. This book was released on 2004 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 2001-07 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the U S Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 2001-07 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 2001 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sources and Chronology of Nitrate Contamination in Spring Waters Suwannee River Basin Florida written by Brian G. Katz and published by . This book was released on 1999 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomorphic Influence of Scarps in the Suwannee River Basin written by and published by . This book was released on 2005 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Practice and Potential of Agroforestry in the Southeastern United States written by Sarah Weems Workman and published by . This book was released on 2004 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrate in Ground Water and Spring Water Near Four Dairy Farms in North Florida 1990 93 written by William J. Andrews and published by . This book was released on 1994 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Florida Public Documents written by and published by . This book was released on 2001 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variability of Nitrate Concentrations in the Shallow Ground Water in a Selected Area of the San Luis Valley South central Colorado written by Robert W. Stogner and published by . This book was released on 1997 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occurrence of Nitrate and Pesticides in Ground Water Beneath Three Agricultural Land use Settings in the Eastern San Joaquin Valley California 1993 1995 written by Karen R. Burow and published by . This book was released on 1998 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrate Occurrence in U S Waters and Related Questions written by John Fedkiw and published by . This book was released on 1991 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Preliminary Assessment of Sources of Nitrate in Springwaters Suwannee River Basin Florida written by and published by . This book was released on 1998 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cooperative study between the Suwannee River Water Management District (SRWMD) and the U.S. Geological Survey (USGS) is evaluating sources of nitrate in water from selected springs and zones in the Upper Floridan aquifer in the Suwannee River Basin. A multi-tracer approach, which consists of the analysis of water samples for naturally occurring chemical and isotopic indicators, is being used to better understand sources and chronology of nitrate contamination in the middle Suwannee River region. In July and August 1997, water samples were collected and analyzed from six springs and two wells for major ions, nutrients, and dissolved organic carbon. These water samples also were analyzed for environmental isotopes [18O/16O, D/H, 13C/12C, 15N/14N] to determine sources of water and nitrate. Chlorofluorocarbons (CFCs; CCl3F CCl2F2, and C2Cl3,F3) and tritium (3H) were analyzed to assess the apparent ages (residence time) of springwaters and water from the Upper Floridan aquifer. Delta 15N-N03 values in water from the six springs range from 3.94 per mil (Little River Springs) to 8.39 per mil (Lafayette Blue Spring). The range of values indicates that nitrate in the sampled springwaters most likely originates from a mixture of inorganic (fertilizers) and organic (animal wastes) sources, although the higher delta 15N-N03 value for Lafayette Blue Spring indicates that an organic source of nitrogen is likely at this site. Water samples from the two wells sampled in Lafayette County have high delta 15N-NO3, values of 10.98 and 12.1 per mil, indicating the likelihood of an organic source of nitrate. These two wells are located near dairy and poultry farms, where leachate from animal wastes may contribute nitrate to ground water. Based on analysis of CFCs in ground water, the mean residence time of water in springs ranges from about 12 to 25 years. CFC-modeled recharge dates for water samples from the two shallow zones in the Upper Floridan aquifer range from 1985 to 1989.
Download or read book Nitrate in Ground Water in the Great Valley Carbonate Subunit of the Potomac River Basin written by Matthew J. Ferrari and published by . This book was released on 1995 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Possible Sources of Nitrate in Ground Water at Swine Licensed managed Feeding Operations in Oklahoma 2001 written by Mark F. Becker and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indicators of the Sources and Distribution of Nitrate in Water from Shallow Domestic Wells in Agricultural Areas of the New Jersey Coastal Plain written by Eric F. Vowinkel and published by . This book was released on 1995 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
