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<br /> <br />,.. ~'""'8" <br />I'.,.. [, <br />V,,'. ,...r <br /> <br />. <br /> <br /> <br />.~ <br />,~y,-,,"').t_' i <br />, ,.4. t', <br /> <br />. <br /> <br />.,-''': <br /> <br />8-;'~ <br />.....y.-. -",'"...' , " <br />,,,,.~'..~,/,' ~ <br />1_,-" 'd(. .' .", "". <br />,~_..i.-4 __~ <br /> <br />Transmountain diversions were begun through Charles H. <br />Boustead Tunnel on May 16, 1972. Shown here is a tunnel <br />discharge of 142 c.f.s, passing over the energy dissipaters <br />below the outlet works measuring section. This picture was <br />taken on May 24. The maximum instantaneous discharge <br />through Boustead Tunnel this season was 711 d.s. recorded <br />on the evening of June 6. <br /> <br />. <br /> <br />10 <br /> <br />