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29 January 2002 <br /> ' AGE-NC Project No. 98-0466 <br /> Page 14 of 25 <br /> ' Discrete soil samples were collected from the borings as follows: <br /> • At 5-foot intervals,beginning at 5 feet bsg to 45 feet bsg,from b rings PB 1,PB2,PB4,PBS, <br /> PB6 and PB9; and <br /> • At 5-foot intervals, beginning at 5 feet bsg to 50 feet bsg in boi' g PB3. <br /> Soil samples were preserved by covering both ends of the brass sleeve 'th Teflon sheets, capping, <br /> ' and sealing with tape. Each sample sleeve was labeled with sort probe I ioring location, depth, time, <br /> date and sampler's initials. <br /> ' Each preserved sample was logged on a chain-of-custody form, place i in a chilled container and <br /> transported to McCampbell Analytical Laboratory(MAI)a CaliforniaDcartmentofHealthServices <br /> (DHS)-certified laboratory under chain of custody. Selected soil san4les were transported under <br /> chain-of-custody to California Laboratory Services (CLS), a DBS-certified laboratory, for <br /> formaldehyde analysis <br /> 3.3. SOIL SAMPLE LABORATORY ANALYSIS <br /> 1 Selected soil samples collected from soil borings PB I and PB2 were ar alyzed for: <br /> • Semi-volatile organic compounds (SVOCs) in accordance with EPA Method 8270; and <br /> 1 • Total chromium, lead and zinc by EPA Method 6010. <br /> ' Selected soil samples collected from boring PB3 were analyzed for: <br /> • Full range petroleum hydrocarbons, including TPH-g, TPH-d aad TPH-mo, in accordance <br /> ' with EPA Method 8015 Modified; and <br /> • Total chromium, lead and zinc in accordance with EPA Method 6010. <br /> ' Selected soil samples collected from boring PB4 were analyzed for: <br /> ' • SVOCs in accordance with EPA Method 8270; <br /> • Phenols in accordance with EPA Method 604/8040; and <br /> ' • Formaldehyde in accordance with EPA Method 8315. <br /> Advanced GeoEnvironmental,Inc. <br />