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PROJECT NAME:Forward Landfill ARCADIS <br />PROJECT NO:30225884 IGS Labs File No:2405-50 <br />SITE LOCATION:Stockton, CA.Report Date:5/10/2024 <br />Mean Grain Size <br />Description Median Particle Size Distribution, wt. percent Retained <br />IGS Labs USCS/ASTM Grain Size,Gravel Sand Size Silt/Clay <br />Sample ID ID Depth, ft.(1)mm Coarse Medium Fine Silt Clay <br />CDCR -EW -4-70-76.5 1 70-76.5 Finesand 0.138 0.32 0.59 29.68 27.28 22.00 20.13 42.13 <br />CDCR -EW -4-76.5-82 2 76.5-82 Finesand 0.086 0.13 0.41 18.58 34.57 28.95 17.35 46.30 <br />CDCR -EW -4-82-85 3 82-85 S ilt 0.069 5.43 0.82 19.33 22.87 37.66 13.89 51.55 <br />CDCR -EW -4-85-93 4 85-93 S ilt 0.048 0.00 0.10 9.70 23.28 39.53 27.40 66.93 <br />CDCR -EW -4-93-97 5 93-97 Finesand 0.307 0.00 0.49 32.61 65.93 0.86 0.11 0.97 <br />CDCR -EW -4-100-104 6 100-104 S ilt 0.046 0.00 0.07 2.46 22.91 41.77 32.79 74.55 <br />CDCR -EW -4-104-109 7 104-109 Finesand 0.245 0.00 0.04 17.99 69.04 0.32 12.61 12.92 <br />CDCR -EW -4-109-113 8 109-113 Finesand 0.327 0.08 0.17 33.90 60.00 0.29 5.55 5.84 <br />CDCR -EW -4-113-116 9 113-116 Finesand 0.367 8.62 1.15 32.22 49.91 0.30 7.80 8.10 <br />CDCR -EW -4-116-120 10 116-120 S ilt 0.038 0.00 0.07 3.23 22.06 26.03 48.61 74.64 <br />CDCR -EW -4-120-125 11 120-125 Finesand 0.112 0.00 0.17 11.71 41.96 17.22 28.94 46.16 <br />Integrated Geosciences Laboratories, LLC <br />(METHODOLOGY: ASTM D6913-04 (2009)) <br />PARTICLE SIZE SUMMARY <br />(1) Based on Mean from Trask