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<br />. <br /> <br /> <br />,.-....~~ <br /> <br />.' <br />..::.:.- <br />:~~ <br />....'- -. <br /> <br />Photo 7--Bentonite has been used for <br />sealing small ponds or reservoirs. It <br />is spread in a layer 1/2 to 2-1nches <br />thick over the pond area, worked into <br />the sub-soil, and compacted, if possible. <br /> <br />, / <br />,. <br />>' <br />, <br /> <br />-- <br />.... --.::. ,', <br /> <br /> <br />. <br /> <br />Photo 6--1n several instances, the dams <br />of bentonite have been spaced along a <br />canal and then spread ....ith a V-ditcher <br />rather than .~th ....ater. <br /> <br /> <br />~., .......... <br />~:,;:~ <br />~"'. <br />~~ . <br />, <br /> <br />,..-' <br />-' _._<---e'l' ~ <br />-~ ". ....,.. <br />. ~.,.....- <br />.~...: ..-..~..;._~!,,::...: <br />.~ .'-'~.....~.~ ~ <br />. . ..'~'''._ ,,'i~ <br />. . " _' H. '. <br />:. . -,;-<,~ . ~ \" <br />Ji,~,"-...~~. ~ <br /> <br />Photo 8--1n the evaluations ca:ried out <br />by the bentonite project, inflo....- <br />outflo.... measurements have been obtained <br />vhen possible. <br /> <br />-10- <br />