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Pr knary Environmental Assessment Report <br /> Pittman Elementary School,Stockton,CA <br /> December 10,2003 <br /> Page 14 <br /> • 7.2 STRUCTURE DRIPLINES <br /> The laboratory analytical results indicate that lead was detected in all of the samples analyzed for this <br /> constituent. Laboratory analytical results of the discrete samples analyzed for metals are summarized in <br /> Table 9, below and on the next page. Laboratory report sheets indicating analytical methods used, <br /> detection limits, and the results of the analyses are included in Appendix B. Analytical results are also <br /> indicated on Figure 11, Appendix A. <br /> Lead was not detected in the equipment blank sample 3638F-rinsate-8/7/03. <br /> Discrete soil samples 3638F-P21-S, 3638F-P21-D, 3638F-P32-S, and 3638F-P32-D are second samples <br /> collected from the same locations as samples 3638F-P20-S, 3638F-P20-D, 3638F-P31-S, and 3638F-P31- <br /> D, respectively. The laboratory analytical results for these samples do not appear to be similar. Lead was <br /> detected at 260 mg/kg in 3638F-P20-S and at 170 mg/kg in the second sample 3638F-P21-S, detected at <br /> 77 mg/kg in 3638F-P20-D and at 210 mg/kg in second sample 3638F-P21-D. Lead was detected in <br /> samples 3638F-P31-S and 3638F-P32-S (second sample) at concentrations of 63 mg/kg and 4.5 mg/kg, <br /> respectively. These results indicate that the concentrations of lead in the structure dripline areas are <br /> heterogeneous within any given sample, as the analytical results cannot be duplicated in samples <br /> collected from the same locations. <br /> Table 9—Laborator Anal tical Results Structure Dri line <br /> 155'1 <br /> ead <br /> Re ortin Limit Ran e m k : Re ortin Limit Ran e m k : 0.81 -1.1 <br /> PRG m k : PRG m k : 150 <br /> ads read PRG m k : Leads read PRG m k : 255 <br /> Building Sample ID Date Building Sample ID Date <br /> Warehouse 3638F-PI-S 8/7/2003 210 Sewage Lifting Station 3638F-P12-S 8/7/2003 85 <br /> 3638F-PI-D 8172003 210 3638F-PI 3-S 8/7/2003 99 <br /> 3638F-P2-S SM2003 150 3638F-P14-S 8/7/2003 76 <br /> 3638F-P2-D 81712003 11 3638F-P15-S 8/7/2003 94 <br /> 3638F-P3-S 8/7/2003 140 Rehab Center 3638F-PI 6-S 8/7/2003 140 <br /> 3638F-P3-D 817/2003 39 3638F-P16-D 8/7/2003 16 <br /> 3638F-P4-S 8/7/2003 100 3638F-P17-S 8/7/2003 99 <br /> Grant House Garage 3638F-P5-S 8/7/2003 140 3638F-PI 8-S 8/7/2003 loo <br /> 3638F-P5-D 817/2003 50 3638F-P19-S 8/7/2003 140 <br /> 3638F-P6-S 8/7/2003 130 3638F-P19-D- 3172003 17 <br /> 3638F-P6-D 8/7/2003 71 3638F-P20-S* 8/7/2003 260 <br /> 3638F-P7-S 8/7/2003 1,100 3638F-P20-D•" 8/712003 77 <br /> 3638F-P7-D 81712003 140 3638F-P21-S' 8/7/2003 170 <br /> 3638F-P73-S 8/13/2003 960 3638F-P21-D'" 8/712003 210 <br /> 3638F-P73-D 811312003 110 3638F-P22S 8/7/2003 110 <br /> Grant House 3638F-P8-S 8/7/2003 980 3 38F-P22-D 81712003 11 <br /> 3638F-P8-D 8172003 110 3638F-P23-S 8/7/2003 110 <br /> 3638E-P9-S 8/7/2003 630 3638F-P23-D 82/2003 57 <br /> 3638F-P9-D H 260 Delta Center 3638F-P24-S 8/8/2003 75 <br /> 3638F-Plo-S 1 40 3638F-P25-S 8/8/2003 150 <br /> 3638F-P10-D 19 3638F-P25-D 8182003 40 <br /> 3638F-PI1-S 2 500 3638F-P26-S 8/8/2003 97 <br /> 3638F-P11-D 43 3638F-P27-S 8/8/2003 240 <br /> 3638F-P27-D 8/8/2003 14 <br /> • See the next page for footnotes. <br /> 1 <br /> r.l� CONDOR <br />