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-'r?a _..nat':.C: r ..r <br /> w.r {d C# •,.*,6;i i _ rt �.,. :.W #��{';,, 7 y , 7x „, '"L+� ' .•- '� k ti:.-'[-J -i, r'='., =r r i .,<' <br /> z•: t -,w. .cW ;A. t "`T w3a } a't H M .a„ ,a •r% r r° r` [ ': , n .��,x 2 . »,z.' <br /> 11ro s crs •: `"a^� +�; '"'." ;x-�'r-=iH"'. .z •. r..*..a,.C: -,� -,:_•.. T;+, ~ <br /> �l.a <br /> 1' <br /> r.x <br /> PPE.-TAMC REPLACEMENT SITE ASSESSMENT <br /> x1 RESULTS REPOF[S <br /> ,bob S-fl 0o vc:a.Stockton.CgWorn!a <br /> Page 2 <br /> n Soil samples were recovered at five foot intervals (along the <br /> 30' angle) from the soil borings beginning at the first five <br /> foot auger break, soil sampling was performed in accordance <br /> with Aegis' Standard Operating Procedure (Sop) , Appendix C. <br /> 0 <br /> mples were recd zre <br /> soil sad in brass tubes and soil samples <br /> were classified accorr.ing to the unified Soil Classification <br /> each soil boring was made in <br /> System. A written log of <br /> accordance with Aegiu' SOF. The logs are included as Appendix <br /> i <br /> A. <br /> i <br /> a soil samples recavered from the sail borings were screened <br /> ble <br /> i the presence of organic vapors with an hMu p <br /> photoionization detector. The highest vapor reading from each <br /> sample was recorded on the sail boring logs. <br /> a Based on the results of classification and screening, a total <br /> of six soil samples from each soil boring were placed under a <br /> w chain-of-custody, secured in a sealed ice chest and submitted <br /> k to a state-certified laboratory for analysis, in accordance <br /> with Aegis' SOP. <br /> I' o The samples were submitted for a fuel-fingerprint analysis. <br /> i <br /> Results were reported for concentrations of total purgeable <br /> PH) as gasoline, benzene, toluene, <br /> petroleum hydrocarbons (TP <br /> xylenes and ethyl benzene, (BTX&E) , ethylene dibromide (EBB) <br /> i and l,2-dichloroethane (EDC) by GC/KS, EPA methods 8240/5030• <br /> 4 In addition, total lead constituents were analyzed by Flame <br /> 1 7 AA, EPA method 7420. <br /> a upon completion of the drilling, the soil borings were grouted <br /> to the surface with a 9-sack cement/sand slurry. The grouting <br /> i procedure was inspected by a representative of San Joaquin <br /> Z County Public Health services. <br /> o Drill cuttings were placed on and covered by visquene. The <br /> -+ stockpiled cuttings were composite sampled to classify them <br /> tar disposal purposes. <br /> o Rinsate water was stared temporarily on site in DOT approved <br /> 55--gallon drums. <br /> { <br /> - a <br /> t <br /> + eo-2osL�.RPr <br /> I � <br />