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John Pestana QTIP Trust 10' Page 3 Measurements of the soil vapor in the samples from the bonngs ranged from zero to a maximum of 421 parts per million (ppm) in HB 11 at 8 feet Soil descriptions are included in the field notes in Attachment B Soil Sample Analysis Soil samples were submitted under chain of custody protocol to Argon Laboratories Samples collected from bonngs HBI through HB7 were analyzed for total petroleum hydrocarbons as gasohne and diesel (TPHG and TPHD, respectively) using modified EPA method 8015, and benzene, toluene, ethylbenzene, total xylenes (BTEX), and methyl tert-butyl ether using EPA method 8020 Additionally, the sample from HB 1 was analyzed for total oil and grease (TOG) using EPA method 3550/5520 Soil samples collected from bongs HD through HBII were forwarded by Argon under chain of custody protocol to Sequoia Analytical and analyzed for fuel fingerprint using EPA modified method 8015, as well as TPHG, BTEX and MTBE Also, extracts of the soil samples collected from bongs HB 1,HB4, and HB5 were later forwarded to Sequoia by Argon for fuel fingerprint analyses . Soil Sample Results Standard Analyses The soil sample collected from HBI, adjacent to the former waste oil UST, contained 950 parts per million (ppm) TOG while TPHG, TPHD, BTEX, and MTBE were not detected Low to moderate levels ofgasohne hydrocarbons were detected in samples collected from borings HB2 (4 0 ppm TPHG, 0 057 ppm benzene) and HB3 (900 ppm TPHG, <0 20 ppm benzene), near the former product Ines, and from bongs HB4 (36 ppm TPHG, 0 013 ppm benzene), HB5 (290 ppm TPHG, <0 10 ppm benzene), and HB6 (400 ppm TPHG, <0 10 ppm benzene), near the former USTs TPHD was detected only in the sample from HB6 at 7 5 feet (75 ppm) No petroleum constituents were detected in bong HB7, located west of the former USTs and pump island MTBE was not detected in any sample Soil analytical data are summarized in Table 1 Laboratory reports are included in Attachments C (Argon)and D(Sequoia) Gasoline hydrocarbon constituents in soil borings located along the northern boundary of the site ranged from non detect in borings HB8 and HB9 (excepting 0 010 ppm xylenes in HB9) to relatively high levels in HBI I (1200 ppm TPHG, 12 ppm benzene) MTBE was not detected in any sample Soil analytical data are summarized in Table 1 Laboratory reports are included in Attachments C (Argon)and D(Sequoia) Fuel Fingerprint Analyses The fuel fingerprint analyses perfonned on the soil sample collected from boring HB I I indicated 1100 pestana 0361sunvpLdoc