Laserfiche WebLink
0 <br /> sample from the deepest boring if soil contamination is <br /> evident at or below a depth of 50 feet. <br /> 11 ) Use a tremmie pipie to backfill the borings with cement grout <br /> from total depth to surface. <br /> 12 ) Transmit the soil samples to McCampbell Analytical <br /> Laboratories for analysis of the following: <br /> Total petroleum hydrocarbons in the gasoline range (EPA <br /> 8015m/5030) <br /> Benzene, toluene, ethylbenzene, xylene (EPA 8020 ) <br /> Total lead (EPA 7020) <br /> 13) Submit a Preliminary Investigation and Evaluation Report to EHD <br /> describing the investigation and presenting the results . The <br /> report will be signed by a registered California geologist. <br />