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Los Angeles, Cal t |lr.H.c|butt, #2. June 5th* 1912* intervals along the proposed route convinced it that, excepting on one short section, the soil contained no salts or alkali that would harm the concrete, and in that section no injurious effects would result unless the soil was kept constantly or nearly constantly wet. I estimate the cost of 9210 feet of pipe required, laid and including freight at 45 cents a foot would he as follows;- 9210 feet of pipe f*o*h* Los Angeles, Trenching and hackfilling, l/S cy* to lin.ft.= 3070 cy. 3% Supervision on above, Freight on Company lines,Los Angeles to Las Yegas on 9210 feet, Estimated cost with freight on Company lines added, ($1,943 lin.ft.) Less freight on Company lines, Estimated cost without freight on Company lines ($1,493 lin.ft.) 1 also secured from the Pacific Tank & Pipe Company a tender for a copper tended wooden stave pipe, two copies of which I hand you. We have tried out iron handed stave pipe at Las Yogas hut the tending was soon destroyed hy the corroding elements in the soil. The maximum head provided for is 100 feet, which is about the difference between the elevation of the water behind the dam at the spring and at the tank, and the gradient between those points falls almost uniformly. About one-quarter of the pipe would bo banded to withstand 25 feet head; another quarter 50 foot head; a third quarter a 75 foot head; and the remaining quarter 100 ft. head. The object being to at $1.35 $12,433.50 « .30 921.00 400.64 " .45 4,144.50 $17,899.64 4,144.50 $13,755.14