Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Mass-Balance Nitrate Model for Predicting the Effects of Land Use on Groundwater Quality in Municipal Wellhead Protection Areas.
Author Frimpter, M. H. ; Donohue, J. J. ; Rapacz, M. V. ;
CORP Author Geological Survey, Boston, MA. Water Resources Div. ;Massachusetts Dept. of Environmental Quality Engineering, Boston. ;Cape Cod Planning and Economic Development Commission, Barnstable, MA.;Environmental Protection Agency, Boston, MA. Region I.
Publisher Jul 88
Year Published 1988
Stock Number PB89-134084
Additional Subjects Water wells ; Water pollution control ; Nitrate minerals ; Mathematical models ; Municipalities ; Potable water ; Predictions ; Septic tanks ; Ground water ; Fertilizers ; Computer systems programs ; Water quality ; Path of pollutants ; Barnstable(Massachusetts) ; Eastham(Massachusetts) ; Mass balance
Library Call Number Additional Info Location Last
NTIS  PB89-134084 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/08/1989
Collation 50p
The mass-balance accounting model can be used to guide the management of septic systems and fertilizers to control the degradation of groundwater quality in zones of an aquifer that contribute water to public supply wells. The nitrate nitrogen concentration of the mixture in the well can be predicted for steady-state conditions by calculating the concentration that results from the total weight of nitrogen and total volume of water entering the zone of contribution to the well. Computations for different development schemes provide a technical basis for planners and managers to compare water quality effects and to select alternatives that limit nitrate concentration in wells. Appendix A contains tables of nitrate loads and water volumes from common sources for use with the accounting model; Appendix B describes the preparation of a spreadsheet for the nitrate loading calculations with a software package generally available for desktop computers.