Record Display for the EPA National Library Catalog

RECORD NUMBER: 26 OF 98

OLS Field Name OLS Field Data
Main Title Evaluating Economic Impacts of Programs for Control of Saline Irrigation Return Flows: A Case Study of the Grand Valley, Colorado.
Author Leathers, Kenneth L. ; Young., Robert A. ;
CORP Author Colorado State Univ., Fort Collins. Dept. of Economics.;Environmental Protection Agency, Denver, Colo. Region VIII.
Year Published 1976
Report Number EPA-68-01-2660;
Stock Number PB-265 842
Additional Subjects Economic impact ; Salinity ; Water quality management ; Irrigation ; Mathematical models ; Cost analysis ; Salinity ; Linear programming ; Colorado ; Numerical analysis ; Hydrogeology ; Concentration(Composition) ; Water pollution ; Land use ; Grand Valley ; Return flow
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-265 842 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 178p
Abstract
Economic impacts of alternative on-farm water management programs for controlling saline irrigation return flows are estimated. The study focuses on the Grand Valley in west central Colorado, an area thought to be representative of irrigation return flows problems in the Upper Colorado River Basin. Direct economic impacts, in terms of increased cost or reduced incomes, are estimated with linear programming models of representative farm situations. A regional interindustry model was developed to trace indirect economic impacts on related economic sectors in the three-county local trade area. Since the hydrologic-geologic relationships which govern salt pick-up in the study reach are not entirely understood, a correlation and regression analysis of water quality and quantity data was performed. This analysis attempted to distinguish salt contributions of natural origin from those due to irrigation, and to separate irrigation concentrations into components attributable to on-farm irrigation practices as compared to water distribution system losses.