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`~ ~ ~ l~GC c." ~ C~'i~ ~~ <br />~,~^ <br />National Water-Quality Assessment Program <br />PESTICIDES IN SURFACE WATERS OF THE UPPER <br />COLORADO RIVER BASIN, COLORAD0,1996-98 <br />Water-Resources Investigations Report 00-4005 <br />~~~,~~ , ~ „~P~ E <br />p~° <br />:i"w~x^ ~ <br /> <br />d m~ <br /> <br />~a <br />U.S. Department of the Interior <br />U.S. Geological Survey <br />