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Our Job 81-20-00 Page A- <br />r.ihele <br />Expansion index equals 1000 (Ah) F <br />Ah is the change in sample height in a Z4-hour period <br />F is the sanple fraction passing the No. 4 sieve. <br />The results of the expansion test performed as part <br />of this work are summarized below: <br />Locat i on <br />Geologi c <br />Uni t <br />Initial <br />Drl' <br />Dens i t1, <br />pcf <br />Ini tial <br />Moisture <br />o,o <br />Final <br />Moi sture <br />o.'o <br />Expansion <br />Index <br />DH-4 e 0-1'| FiI1 113 9 77 11 <br />Chemical Tests. Tests to determine the pH and minimum <br />resistivity of the foundation soil were performed for us by <br />Anaheim Test Laboratory. Total available sulfate was deternined <br />in our laboratory by means of a Turner, Model 330 Spectrophotometer. <br />The results of the tests are summarized below: <br />Locati on Depth <br />0-I <br />Calif. 643C <br />_pH <br />Soluble <br />Sulfate <br />ppm <br />Minirni-un <br />Res is t ivi ty <br />Ca1if.643C <br />ohm- sn <br />DH- 4 6.9 595 14 00