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RECORD NUMBER: 35 OF 38

OLS Field Name OLS Field Data
Main Title Transport and fate of nutrients and indicator microorganisms at a dairy lagoon water application site : an assessment of nutrient management plans /
Author S. Bradford
Other Authors
Author Title of a Work
Bradford, Scott.
CORP Author Agricultural Research Service, Riverside, CA. Salinity Lab.; National Risk Management Research Lab., Ada, OK. Office of Research and Development.
Publisher National Risk Management Research Laboratory, Office of Research and Development,
Year Published 2011
Report Number EPA/600/R-10-116
Stock Number PB2012-109454
OCLC Number 785630341
Subjects Nutrient pollution of water. ; Agricultural wastes--Environmental aspects. ; Land treatment of wastewater. ; Feedlot runoff--Law and legislation. ; Soils--Nitrate content.
Additional Subjects Water pollution monitoring ; Microorganisms ; Nutrients ; Dairies ; Lagoons ; Literature reviews ; Site characterization ; Figures ; Tables (Data) ; Colloid retention ; Mathematical models ; Pathogen fate ; Nutrient fate ; Quality assurance ; Manure ; Animal wastes ; Dairy lagoons ; Indicator microorganisms ; Nutrient management plans (NMPs)
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P100DOTV.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ERAD  EPA 600/R-10-116 Region 9 Library/San Francisco,CA 07/09/2012
NTIS  PB2012-109454 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 10/24/2012
Collation xii, 84 p. : ill. ; 28 cm.
Abstract
The Environmental Protection Agency (EPA) currently requires that application of Concentrated Animal Feeding Operation (CAFO) wastes to agricultural fields follow an approved Nutrient Management Plan (NMP). The tacit assumption is that a well designed and executed NMP ensures that all lagoon water contaminants (nutrients and pathogens) are retained or taken up in the root zone, so that groundwater is inherently protected. Recent research by the EPA, however, has demonstrated that land application of CAFO lagoon water can cause nitrate contamination of groundwater at significant depths in short time frames. The research outlined in this report was designed to test the assumption that a well designed and executed NMP is protective of groundwater from nutrients, salts, and indicator microorganisms, and to address potential weaknesses in the land application design and operation processes of NMPs. The report is divided into seven chapters. Chapter 1 provides a detailed review of the literature examining the reuse of CAFO wastewater on agricultural fields, with special emphasis on nutrients and pathogens. A dairy farm in San Jacinto, California, was selected for our NMP research experiments. Chapter 2 provides a description of our field site and extensive experiments that were conducted to characterize the flow and transport properties at this site. Chapter 3 provides a detailed description of the NMP implemented at this site and results pertaining to the fate of nutrients and salts. Chapter 4 describes field and laboratory research that was conducted to study the fate of indicator microorganisms under NMP conditions. Many gaps still exist with regard to our understanding of microorganism transport and retention in the field. Laboratory experiments and mathematical model development were therefore initiated to overcome some of these limitations. Chapter 5 outlines results from laboratory studies that examined the coupled effects of pore structure, solution chemistry, and water velocity on colloid retention in saturated and unsaturated porous media, whereas Chapter 6 describes the development and application of the mathematical models for colloid transport and retention. Chapter 7 provides a summary of the research, and the main conclusions and recommendations.
Notes
Contains bibliographical references. Printout of .pdf file. "March 2011." -- cover. "EPA 600/R-10/116." -- cover.
Contents Notes
"The Environmental Protection Agency (EPA) currently requires that application of Concentrated Animal Feeding Operation (CAFO) wastes to agricultural fields follow an approved Nutrient Management Plan (NMP). The tacit assumption is that a well designed and executed NMP ensures that all lagoon water contaminants (nutrients and pathogens) are retained or taken up in the root zone, so that groundwater is inherently protected. Recent research by the EPA, however, has demonstrated that land application of CAFO lagoon water can cause nitrate contamination of groundwater at significant depths in short time frames. The research outlined in this report was designed to test the assumption that a well designed and executed NMP is protective of groundwater from nutrients, salts, and indicator microorganisms, and to address potential weaknesses in the land application design and operation processes of NMPs." -- p. xi.