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' VW-513 Ground Water Elevation Calculation <br /> • LARRY'S AUTO <br />' 308 North Grant Street, Stockton, California <br /> rBoring VW-5, drilled at an angle of 10° from vertical directed N 80° W, was advanced to a depth <br /> of 55 vertical feet below surface grade (bsg) with a horizontal run of 9 7 feet and was triple- <br /> completed as a vapor extraction remediation well Well VW-5B is screened from 26 5 feet to 41 5 <br /> feet bsg The ground water elevation in MW-5B on 21 September 2005 was 23 23 feet below mean <br /> sea level (MSL), but due to the 10° angle of the well , the adjusted MSL of VW-5B is 22 88 feet <br />' below MSL by the following calculation <br /> d= adjusted ground water elevation <br />' x = 23 23 feet <br /> Y = 10' <br /> such that <br /> d=x cos y <br /> Id=23 23 cos 10 <br />' • d=22 88 <br /> 1 <br /> I <br /> Advanced GeoEnviron mental,Inc <br /> I <br />