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rAPPENDIX D <br /> VW-5B GROUND WATER ELEVATION CALCULATION - <br />' Larry's Auto <br /> 308 North Grant Street, Stockton, California <br />' Boring VW-5, drilled at an angle of 10° from vertical directed N 80' W,was advanced to a depth of <br /> 5 5 vertical feet below surface grade(bsg)with a horizontal run of 9 7 feet and was triple-completed <br />' as a vapor extracti on remediation well Well VW-5B is screened from 26 5 feet to 41 5 feet bsg The <br /> ground water elevation in MW-5B on 18 August 2003 was 23 87 feet below mean sea level (MSL), <br /> but due to the 10° angle of the well , the adjusted MSL of VW-5B is 23 51 feet below MSL by the <br />' following calculation <br />' d = Adjusted ground water elevation <br /> x = 23 87 feet <br /> 0 = 10' <br /> such that <br /> d = x cos B <br /> d = 2210(cos 10) <br /> d = 23.507 ;z� 23 51 feet <br /> Advanced CeoEnvironmental,Inc <br /> 1 <br />