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Table 1 Summary of Soil Analytical Results,Metals DTSC-Gordon Research Company Property,Manteca,California R V009808.0000 E 2 U E 2 E v m E c d o r @ m o c Anae: m fN <` < m m v x c4 r$ 2 z 03 in 1- > a Method: EPA 6010B EPA 60708 EPA 60108 EPA 60108 EPA 60108 EPA 60108 EPA 7196A EPA 60108 EPA 60108 EPA 60108 EPA 7471A EPA 60108 EPA 60108 EPA 60108 EPA 60108 EPA 60108 EPA 60108 EPA 6010B (Inds: mg/Kg mg/Kg mglKg myKfl mg/Kgm0/Kg mWK9 ^Mfl rnDIK9 myKg m91KflK9 mWKflKflKfl r^G1K9 mWKflKfl Sample ID Date Sampled Depw B-36-0.5 06/23/10 0.5 <0.5 2.4 41 0.11 -0.25 6.0 2.7 5.3 22 -0.022 -0.25 4.8 -0.5 -0.25 <0.5 26 24 B-37-0.5 06/24/10 0.5 -0.5 1.0 41 0.1 <0.25 5.9 2.5 6.4 1.4 <0.02 <0.25 4.6 -0.5 <0.25 <0.5 27 18 8-38-0.5 06/24/10 0.5 <0.5 0.99 38 <0.1 <025 6.4 2.5 5.1 3.9 <0.02 -0.25 4.6 <0.5 -0.25 <0.5 30 22 B-39-0.5 06/24/10 0.5 <0.5 1.7 34 <0.1 <0.25 5.1 22 6.8 8.3 -0.02 <0.25 4.4 <0.5 -0.25 <0.5 22 23 B-40-0.5 06/24/10 0.5 0.99 1.7 58 0.12 -0.25 9.9 3.0 7.7 42 0.074 <0.25 5.3 <0.5 -0.25 <0.5 41 72 B-41-0.5 06/24/10 0.5 7.4 0.74 43 0.11 0.28 8.6 2.5 6.5 34 0.03 -0.25 4.8 <0.5 -0.25 <0.5 38 48 B42-0.5 06/24/10 0.5 7.4 4.1 44 0.12 0.28 12 3.5 8.2 49 0.22 -0.25 7.8 <0.5 <0.25 <0.5 44 150 B43-0.5 06/24110 0.5 6.3 9.7 500 0.13 3.0 9.7 3.0 8.7 1300 0.064 <025 5.0 -0.5 -0.25 -0.5 36 520 B44-0.5 06124/10 0.5 8.6 5.8 46 0.16 0.73 13 3.6 12 35 -0.021 0.48 6.3 <0.5 <025 <0.5 44 71 B45-0.5 08124/10 0.5 6.6 2.6 46 0.15 <0.25 8.5 3.6 13 42 0.025 <0.25 6.5 <0.5 <025 <0.5 37 31 B-46-0.5 0624/10 0.55.6 1.5 42 0.13 -0.25 7.5 3.1 6.8 6.0 -0.022 -0.25 4.8 <0.5 <025 <0.5 31 29 847-0.5 06/24/10 0.5 5.5 2.7 42 0.12 -025 7.0 2.9 6.1 52 -0.022 -0.25 4.5 <0.5 <025 <0.5 30 29 848-0.5 06/24/10 0.5 6.2 17 43 0.13 <0.25 8.3 2.8 6.2 13 -0.021 -0.25 4.5 <0.5 -0.25 -0.5 31 9 5-3 06/24/10 13 2.2 120 013 13 13 <04 2.4 24 130 0.07 1.6 9.0 -0.5 -0.25 <0.5 17 790 Statistical Summary Total Number of Samples: 47 49 47 47 49 47 7 47 47 50 41 47 47 47 47 47 47 47 Number of Detects: 39 49 47 42 21 47 0 47 47 50 24 16 47 0 0 0 47 47 Maximum Concentration: 18 59 500 0.16 20 260 <0.4 6.5 62 1600 0.45 23 21 .0.5 <025 <O.5 44 5300 Minimum Concentration: -0.5 0.61 34 <0.1 <0.25 5.1 <0.4 2 2 0.83 1.2 <0.02 .-0.25 4.1 U.5 -0.25 <0.5 1; 18 Average Concentration: 4.81 8.94 71.47 0.12 1.05 18.16 - 2 97 12.03 107.51 0.05 0.96 6.37 - - - 30 45 277.28 Standard Deviation: 3.86 11.35 75.55 0.02 2.92 39.20 0.73 12.32 301.49 0.07 3.33 3 3 5.79 868.59 Comparison Criteria Background Concentration: 12 CHHSLs: 30 0.07 5200 150 1.7 WHO 17 660 3000 60 18 380 IoUU F380 300 5 530 23000 raximum conaeneauon betowback ound or CHHSLs7 YES NO YES YES NO YES YES YES YES NO YES YES YES VES YES YES YES YES Quality Control Summary Duphcafe Samples B-1-0.5 06123/10 0.5 5.0 4.9 52 <0.1 1.8 14 - 2.2 15 24 0.065 0.72 6.1 <0.5 -025 <0.5 17 160 DUPi 06/24/10 0.5 8.3 7.2 36 0.13 -0.25 9.7 3.4 8.3 6.4 <0.021 -0.25 52 <0.5 -0.25 <0.5 45 42 RPD(%) 50% 38% 36% 26% 151% 36% - 43% 68% 116% 102% 97% 16% 0% 0% 0% 90% 117 B-7-0.5 06/23/10 0.5 6.0 10 40 0.11 0.31 9.4 - 2.5 6.6 14 -0.022 23 4.3 4.5 -0.25 <0.5 32 42 DUP2 06/24/10 0.5 7.4 30 63 0.12 0.57 16 2.6 9.4 34 <0.02 9.5 4.8 <0.5 -0.25 <0.5 36 55 RPD(%) 21% 50% 45% 9% 59% 521/ - 4% 35% 83% 10% 83% 11% 0% 0% 0% 12% 27 B-20-0.5 06/23110 0.5 6.4 1.7 66 0.14 3.6 12 - 3.5 14 44 0.17 0.45 7.8 <0.5 <0.25 <0.5 30 67 DUP3 06124/10 0.5 4.6 2.1 57 0.12 0.5 7.8 2.7 7.0 17 0.02 <0.25 5.7 <0.5 <0.25 <0.5 24 46 RPD(%) 33% 21'/� 15% 15% 151% 42% - 26% 67°/ 89% 158% 57% 31% 0% 0% 1 0% 22% 37% Tables 1-92EA Work Plan Adtlendum.RV009808,16 4202011 ARCADIS Paye 2 of 3