ARCHIVED REPORTS PHASE II ENVIRONMENTAL SITE ASSESSMENT REPORT

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` Phase II Environmental Site Assessment Report-Executive Summary 1025 East Main Street,Stockton,San Joaquin County,California Page 9 Table 5—Soil Sample Results—BTEX,TPH-G,-D,-MO Sample Date Constituent IDs Sampled Benzene Toluene Ethyl Total TPH-G TPH-D TPH- - Benzene X lens MO EPA Method: 8260B 8260B 8260B 8260B 1 8015Cm 8015Cm 8015Cm Units: m m kg m m g mg k mg k m g RS 1-0 12/11/2007 NA NA NA NA < 1.0 11 180 RS 1-1 12/11/2007 <0.005 <0.005 <0.005 <0.005 < 1.0 100 ,b 370 RS 2-0 12/11/2007 NA NA NA NA < 1.0 11,g 110 RS 2-1 12/11/2007 NA NA NA NA < 1.0 16,g 150 RS 3-0 12/11/2007 NA NA NA NA < 1.0 29,g,b 150 RS 3-1.5 12/11/2007 NANA NA NA < 1.0 150, ,b 470 RS 4-0 12/11/2007 NA NA NA NA < 1.0 8.2, 64 RS 4-3 12/11/2007 <0.005 <0.005 <0.005 <0.005 3.2 * m 26,91b 37 WP 1-0 12/12/2007 NA NA NA NA < 1.0 48 ,b 290 WP 2-0 12/12/2007 NA NA NA NA < 1.0 30,g 320 B 3-3 12/12/2007 <0.005 <0.005 <0.005 <0.005 < 1.0 3.0,g,b 13 r B 4-3 12/12/2007 <0.005 <0.005 <0.005 <0.005 < 1.0 < 1.0 <5.0 Notes: mg/kg:milligrams per kilogram,parts per million(ppm).NA=Not analyzed. L Sample ID:RS=Rail Spur,WP=Western Pacific Railroad Tracks,B=Boring. B,T,E,X=benzene,toluene,ethyl benzene,total xylenes. TPH-G=total petroleum hydrocarbons,quantified as gasoline. TPH-D=total petroleum hydrocarbons,quantified as diesel. L TPH-MO=total petroleum hydrocarbons,quantified as motor oil. Bold values indicate constituent was detected at or above laboratory reporting limit. Laboratory notes: g•)strongly aged gasoline or diesel range compounds are significant. ` g)oil range compounds are significant. b)diesel range compounds are significant;no recognizable pattern. 5.1.3.2 Former Western Pacific Railroad Tracks LFigure 6, Appendix A, and Table 5 (above) summarize the analytical results. TPH-G was not detected at or above laboratory reporting limits of 1.0 mg/kg in the two surface soil samples(WP 1-0 and WP 2-0)or the two subsurface soil samples(B 3-3 and B 4-3). TPH-D was detected from surface soil samples WP 1- 60 0 and WP 2-0 at 48 and 30 mg/kg, respectively. The laboratory notes for the analyses were "oil range compounds are significant and diesel range compounds are significant' for both samples, with "no recognizable pattern" for WP 1-0. TPH-MO was detected in WP 1-0 and WP 2-0 at 290 and 320 mg/kg, 60 respectively. BTEX compounds were not detected at or above the laboratory reporting limit of 0.005 mg/kg for subsurface samples B 3-3 and B 4-3. TPH-D was detected at 3.0 mg/kg in sample B 3-3 and TPH-D was not detected at or above laboratory reporting limits for B 4-3. The laboratory notes for the ` analysis of B 3-3 were "oil range compounds are significant and diesel range compounds are significant; no recognizable pattern". TPH-MO was detected at 13 mg/kg for B 3-3 and TPH-MO was not detected at or above laboratory reporting limits of 5.0 mg/kg for B 4-3. 6. V V A i8 CONDOR L