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All drilling and sampling equipment was cleaned on site to prevent cross contamination The .� decontamination water and soil spoils were placed in steel drums with lids securely sealed, labeled for identification, and stored on site 1Mr Mike Infurna from the PHS/EHD was on site to witness portions of the soil sampling collected from these two bonngs He was also present to witness and approve the grouting of the borings Mr Charles Fry, a registered geologist with WJH directed the sampling work and through the chain of custody delivered the soil samples to FGL for analysis of BTEX, TPH-gasoline, and total lead If total lead was more than 50 ppm, then the laboratory was directed to analyze the sample for soluble lead EXHIBIT L) On April 14, 1994, Mitchell Drilling returned to the site for the boring and sampling of soil bonngs SB3, SB4, and SB5 The same methods and procedures of boring and collecting soil samples were used as in SBI and SB2 All three borings are located inj the removed gasoline storage tanks area PLATE VIIIA) Soil boring SB3 which was advanced to a total depth of 401h feet, noted a questionable asoline odor in soil sample SB3-2 at 101h-11 feet with an odor in the shoe plug, and gasoline odor in SB3-3 at 151h-16 feet, SB3-4 at 201h-21 feet, and SB3-6 at 2516-26 feet, and a questionable odor in SB3-6 at 301h-31 feet No odor was detected in any of the soil 10) samples collected in soil borings UL4 and SB5 both which were taken to a depth of 401h feet below ground surface XHIBIT K and PLATE IX PLATE IX is a north-south cross section through the five borings to illustrate the soil profile and also shows the cored intervals in each boring from which the soil samples were collected for laboratory analysis. The soil samples collected this day from SB3, SB4, and SB5 were delivered through chain of custody EXHIBIT L) to FGL for the same analysis as SBI and SB2 Results of LaboraLW Analyses The soil samples delivered to FGL were analyzed according to the SJC/PHS/EHD instructions for BETX using EPA method 8020, TPH-Gasoline using EPA Method 8015M, and total lead using EPA Method 7420 Hunter and Associates requested the laboratory to run STLC lead on any sample that contained more than 50 ppm total lead The laboratory analysis results are included as EXHIBIT L and shown on TABLE 1 All the soil samples were below detection limits for Benzen/except for SB"- which containe LO 009 ppm and SB2-4 which contained 1 6 Um Ethyl Benzene was detected only in soil samples _0_1- which contained 4 0 ppm, SB 1-4 that contained 0 076 ppm, SB 105 that contained 0 18 ppm, and SB2-4 that had 40 ppm Toluene was found in SB1-3 which 4