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GROUP 370 Amapola Ave . Suite 212, Torrance. CA 90501 <br />32 Mauchly. Suite B. Irvine, CA 92618 <br />1320South Simpson Cirde, Anaheim, CA 92806 <br />DELTA 9245 Activity Road, Suite 103, San Diego, CA 92126 <br />MD*INDJESTIMEIHOD; FOg ....0 <br />•/te, <br />.....................................1 <br />::;::PHAN@:8@Als,TjyjTYNATM §02) .......... <br />1•• ••••••••••• ••:••••••im••••••• REV 9-22-10 <br />PROJECT:Broadstone Heritage <br />PROJECT NO.: LA-1248A <br />TESTED BY:JANK <br />SAMPLED BY: CW <br />SAMPLE DATE: Not /ndicated <br />CHECKED BY: DLR DATE:August 12,2015 <br />SAMPLE DESCRIPTION: <br />8-38-2@2- 2.5' <br />Lab # SO.3309 <br />pH OF SAMPLE <br />TEST RESULT 8.96 pH <br />RESISTIVITY OF SAMPLE <br />SAMPLE WEIGHT 300 gm. <br />TRIAL NO.WATER ADDED (mi)RESISTANCE (ohm) <br />1 41 1900 <br />2 51 1600 <br />3 61 1400 <br />4 71 1500 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />BOX CONSTANTS [CM]: SMALL (.5.5), MEDIUM (0.432), LARGE (6.458) <br />RESISTIVITY <br />A) BOX CONSTANT (SMALL, MEDIUM OR LARGE)0.505 CM <br />B) LOW RESISTANCE X BOX CONSTANT (A)990 OHM-CM <br />C) TEMPERATURE AT MINIMUM RESISTIVITY 22.3 oC <br />D) CORRECTED RESISTIVITY FOR 15.5 %1158 OHM-CM