Record Display for the EPA National Library Catalog

RECORD NUMBER: 27 OF 57

OLS Field Name OLS Field Data
Main Title Irrigation Return Flow Study Wapato Irrigation District Yakima River Basin, Washington.
CORP Author Public Health Service, Portland, Oreg. Div of Water Supply and Pollution Control.
Year Published 1964
Report Number Working Paper-47;
Stock Number PB-215 189
Additional Subjects ( Yakima River Basin ; Water pollution) ; ( Ground water recharge ; Yakima River Basin) ; ( Washington(State) ; Water pollution) ; ( Columbia River Basin ; Water pollution) ; ( Irrigation ; Water pollution) ; Return flow
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-215 189 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 31p
Abstract
A study of return flows in the Wapato Irrigation District in the Yakima River Basin in central Washington was made during the 1963 irrigation season to determine effects of the (principally) irrigation use on water quality. Parameters investigated included temperature, oxygen demand, hardness, turbidity, coliform bacteria, pesticide toxins, and various nutrient ions. Some degradation of quality was observed for nearly every parameter, but the overall effect was not severe. The chief recommendations for improvement of water quality involve improvements in amount and timing and method of application of the irrigation water, and a continuing educational safety campaign on use of pesticides. (Author)