Record Display for the EPA National Library Catalog

RECORD NUMBER: 31 OF 38

OLS Field Name OLS Field Data
Main Title Socio-economic and institutional factors in irrigation return flow quality control : Middle Rio Grande Valley case study /
Author Trock, Warren L. ; Huszar, Paul C. ; Radosevich, George E. ; Skogerboe, Gaylord V. ; Vlachos, Evan C.
Other Authors
Author Title of a Work
Vlachos, Evan.
CORP Author Colorado State Univ., Fort Collins.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1978
Report Number EPA-600/2-78-174c; EPA-R-803572
Stock Number PB-287 447
OCLC Number 12719661
Subjects Irrigation--United States. ; Water quality--United States.
Additional Subjects Water rights ; Water pollution ; Irrigation ; Rio Grande Valley ; Allocations ; Farms ; Evapotranspiration ; Inorganic salts ; Rio Grande River ; Canals ; Ditches ; Improvement ; Sales ; New Mexico ; Case studies ; Return flow ; Institutional framework ; Cost sharing ; Socioeconomic factors
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ERAD  EPA 600/2-78-174c Region 9 Library/San Francisco,CA 08/09/2002
NTIS  PB-287 447 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 149 pages : illustrations, maps ; 28 cm.
Abstract
Degradation of water quality as a consequence of use in irrigation in the Lower Rio Grande Valley of New Mexico is a largely unavoidable phenomenon. In this region annual allocations of water to irrigated farms, about 2.5 acre-feet per acre, are little more than enough to produce crops. Evaporation and transpiration, occurring because of irrigation, cause concentrations of salts in return flows to be greatly increased, and the addition of these highly saline return flows to a quite limited flow of water in the Rio Grande causes the quality of the river water to be significantly reduced. It is possible to affect the quantity and quality of return flows by improvement of water transport facilities (canals, laterals and ditches) and by improved management of water on some farms. These two technical improvements can be accomplished by extension of technical assistance through existing federal and state agencies and by cost-sharing programs such as the Agricultural Conservation Program. But it is also possible to achieve improved management of water on farms by facilitating exchanges or sales of allotments among farmers who are members of irrigation districts.
Notes
Microfiche.