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(p J 1 <br />�I I <br /> I <br /> TANK aAS AE RE'p'W 1 <br /> 2320 North El Dorado Street, <br /> Stockton, Califcrnie <br /> Algia ProjeCt No. 89•b49 <br /> Page 7 <br /> 3.2.1 Soil Sampling Before and After Excavation <br /> Samples 8-SE@16' , 8-SW@16' ,10; E@16.';x, 10-W@16' 8-NE@14' and 8-NW@16' <br /> were collected at the locations identified in Figure 4 after the <br /> former tanksF were removed and p3�i � e ?= ich at on. The soil <br /> w samples identified as NTP-1 through NTP-5 were collected from the new <br /> amX location during its excavation. Soil samplas identified as QTP- <br /> M- r tank pit af&erex- <br /> 1 .through DTP,,-4, were collected from the forme <br /> eXeavat on Aalytical results for these samples are summarized in <br /> 1 through 45='"12 were <br /> Table 2. The soil samples identified as S$Fr, <br /> collected from the product - cinewt� rftas and product d spensing lsband <br /> ase >.eftr exction, to appy x�mattroot be�owroundsTrsfane. <br /> Soil samp' es identified as • 73 `through SLwere collected from these <br /> same areas aer,, rerexcavat3bn. Analytical results for these <br /> samples are summarized in Table 4. <br /> As summarized in Table 2, petroleum hydrocarbons were detected in <br /> three of the soil samples. The soil samples containing detectable <br /> ' levels of petroleum hydrocarbons (10-E@16' , 10-W@16' , 8-NE@14 ' ) were <br /> collected from 14 and 16 feet bfklow grade at the ands of the former <br /> tank pit. The "'OT-P" series of sa.Ltples were collected from the four <br /> sides of the former tank pit, after over-excavation, at approximately <br /> �y feet balu�wg- ade. The "NTP" series of samples were collected from <br /> the walls of the new tank pit at 6 feet and 16 feet below grade. All <br /> samples are'! representative of native soil. <br /> 1 <br /> I <br />