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kTI K L I I N F E L D E R <br /> Groundwater samples were obtained from four of the five push probe bonngs (no water was <br />' encountered in push probe GP-1) The groundwater samples were collected using a positive <br /> displacement check valve attached to new polypropylene tubing The positive displacement was <br /> generated manually using a piston-like motion New tubing was used at each sampling location <br /> Slotted PVC was placed within each of the five push probe boreholes to help decrease turbidity <br /> and facilitate collection of the groundwater sample The groundwater samples were transferred <br /> into pre-cleaned laboratory grade bottles <br /> After collection, the soil and water samples were labeled, logged on a chain-of-custody, and <br />' immediately stored in an iced cooler The samples were transported in a chilled ice chest under <br /> chain-of-custody control to Kleinfelder's office and to APPL <br />' 5.3 SAMPLE HANDLING AND CHEMICAL ANALYSES <br /> A total of 16 soil samples and four groundwater samples were submitted for potential chemical <br />' analyses to APPL Laboratories of Fresno, California APPL is certified by the California <br /> Department of Health Services to perform the requested analyses Six soil and four groundwater <br />' samples were selected for analysis One soil and groundwater sample was analyzed from each of <br /> the four push probes GP-2 through GP-5 A single soil sample was submitted for analyses from <br /> push probe GP-1 and a soil sample collected from a stockpile from a previous assessment The <br /> samples were analyzed for the following <br /> ■ Benzene, Toluene, Ethylbenzene, Total Xylenes [BTEX] by EPA Method 8021B <br />' ■ Total Purgeable Petroleum Hydrocarbons as referenced to Gasoline [TPH-G] by EPA <br /> Method 8015M <br />' The four groundwater samples (GP-2 through GP-5) and one soil sample collected from push <br /> probe G-3 were additionally analyzed for <br />' ■ Fuel Oxygenates including ETBE, DIPE, MTBE,TAME and TBA by EPA Method <br /> 8260B <br /> ■ Ethanol and Methanol by GC-FID <br /> Tables 1 and 2 summarize the analytical results For a discussion of results see Section 7 <br /> 20-4439-01 E0112000R126 Page 9 of 17 <br />' Copynght 2000 Kleinfelder, Inc October 16 2000 <br />