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<br />. <br /> <br />. <br /> <br /> <br />"" <br /> <br />"'..... <br /> <br />~ <br /> <br />, <br />. <br /> <br />... <br />- <br /> <br />,. <br /> <br />:? - <br />91t. <br />.. ...::.,.. <br />~f':""'" oJ <br />~!!l <br /> <br /> <br />, .'~ <br />.., <br />, - <br /> <br />Photo 3--Most COm:IlOn method of <br />application consists of placing <br />dams of benton:te in dry canal, <br />t.hen running in small head of <br />~ater and Yashing benton1~e do.n <br />canal. <br /> <br />. <br />, <br /> <br /> <br />~ <br /> <br />liOl~yI <br /> <br />~ ," <br />. :..A"'~ <br />-" <br />-~- <br />. <br /> <br />n <br /> <br />"~\'. <br />..~ ... --- <br /> <br />.<-T:.I <br /> <br />- <br /> <br />- <br /> <br />r~,... <br />, <br /> <br />~ <br /> <br />",,' <br />~~ <br />~.....' <br />~.. ~ .... <br />~':....~,,__.~ -,,:,T., <br />..-.....&'..-_'!...... .- <br />-...- ""'IIi- -... <br />~.~".~~ ~, <br />~. " . - <br />~-~~~.~ -:::. <br />~(.~~."'.. -' .. <br />~.,....;,~~ - ~.. .-.. ......' . <br />.>~ "- -......<2.... ~';-._" <br />. ~ 4-"-;:::>~.;.- ~ --;" .. <br />, ~_""-'.." .l.: ,. <br />-- ..-------.." .. .~-- <br /> <br /> <br />Photo 4--The bentonite <br />can be shovelled into <br />the ~ater as the dam <br />is ~ashed out, but in <br />some cases, as above, <br />a small bulldozer ha3 <br />been used. <br /> <br />--..' <br />.......~.. <br />'. <br /> <br />Photo 5--Several high loss <br />natural channels have also <br />been sealed by washing ben- <br />tonite dovnstrean with the <br />....ater. <br /> <br />'. <br /> <br />"9- <br /> <br />1022 <br />