Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Pesticides in Water Supplies Using Surface Water Sources.
Author Wnuk, M. ; Kelley, R. ; Breuer, G. ; Johnson, L. ;
CORP Author Iowa Dept. of Natural Resources, Des Moines. ;Iowa Univ., Iowa City. State Hygienic Lab.;Environmental Protection Agency, Washington, DC.
Year Published 1987
Stock Number PB88-136916
Additional Subjects Pesticides ; Water treatment ; Surface water ; Potable water ; Water pollution detection ; Drinking water
Library Call Number Additional Info Location Last
NTIS  PB88-136916 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 43p
Between May and early July in 1986, samples of treated (finished) water were collected after rainfall from 33 public water supplies using surface water sources. These samples were analyzed for 37 pesticide compounds. Fourteen water supplies also collected samples from their surface water source prior to treatment to determine the effectiveness of treatment with regard to pesticide removal. Detectable concentrations of one or more of ten pesticides were found in the treated water from 30 of the 33 water supplies tested. Individual pesticides and the number of supplies in which they were detected were: atrazine, 30; cyanazine (Bladex), 26; metolachlor (Dual), 21; alachlor (Lasso), 17; carbofuran (Furadan), 9; metribuzin (Sencor), 4; 2,4-D, 2; and, trifluralin (Treflan), butylate (Sutan) and dicamba (Banvel), 1 each. Study results indicate that current conventional water treatment technology is ineffective at substantial reduction of pesticide concentrations or elimination of pesticides from drinking water. Further, the study suggests that current pesticide monitoring requirements of the Safe Drinking Water Act are inadequate.