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and sealed with tape The samples were then stored on ice and transported under chain-of- <br /> custody to Western Environmental Science and Technology (WEST) ill Davis, CA <br /> During drilling, auger returns were monitored for the presence of organic vapors using a <br /> photo-ionization detector (PID Thermo Environmental 580A, 10 0 eV, calibrated to <br /> isobutylene) Auger returns were then placed on plastic sheeting and stored on-site <br /> 3.2 Logging <br /> Soil was extruded from the second brass tube and screened for the presence of organic <br /> vapors, using a PID, and the readings were recorded on the boring logs The soil was then <br /> described in accordance with tiie Unified Soil Classification System (see Boring Logs, <br /> Appendix A) <br /> 3.3 Band-Auger Sanil)les <br /> On rebivary 21, 1995, three soil samples were collected )icai the dispenser island in the <br /> three liand-auger borings advanced to approximately three feet bsg The samples were <br /> collected using a metric soil sampler loaded with two 2 by 3-inch brass sleeves The ends of <br /> the lead sleeve were covered with aluminum sheets, capped and sealed with tape The <br /> samples were placed on ice and transported to WEST Each hand auger boring was <br /> • backfilled with Portland cement <br /> 3.4 Groundwater Sampling <br /> Groundwater grab samples were collected from B-2, B-4, B-5, B-6, B-7, B-8, B-9 and B-10 <br /> using a disposable bailer The water samples were collected in two 40-m1 EPA vials, one 1-L <br /> amber bottle and one 1-pint plastic bottle Each sample was placed in a chilled container <br /> and transported to a state-certified laboratory under chain-of-custody procedure The sample <br /> from B-2(B-212-21-95)was analyzed by McCampbell Analytical, Inc (MAI) in Pacheco, CA <br /> All other samples were analyzed by WEST <br /> 3.5 Laboratory Analysis of Soil and Water Samples <br /> Selected soil samples were analyzed for total lead, total petroleum hydrocarbons (TPH as <br /> gasoline, diesel and motor oil) and volatile aromatics (BTE&X) in accordance with EPA <br /> methods 6010, 8015111 and 8020, iespectrvely Selected water sample were analyzed for total <br /> lead, TPH as gasoline, diesel and motor oil, and BTE&X in accordance with EPA methods <br /> 6010, 8015m and 602, respectively <br /> mob , s. .,.0 5 <br /> F-.t.Fb d Mn JIJFI Q61h'.b M$ <br />