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DRAFT:Stockton Propeller Sampling and Analysis Plan <br /> Table 4. Summary of GeoTracker Information for Wells in the Vicinity of the SPI Facility <br /> Document <br /> Distance/ Depth to Groundwater <br /> Site Type, Date Direction GW b s Direction, Predominant Geology Contaminants <br /> yp ' ( g )from SPI Gradient(ft/ft) <br /> Chevron QMR, May 750' 53.29 NNE, 0.0068 MW-1:Silty Sand 0-30'; Sandy Silt 30'-60' TPH, BTEX, MTBE, <br /> 2018 WSW MW-3: Clay 0-28'; PAHs <br /> Silty Sand 28'-38'; Sandy Silt 38'-62'; Silty <br /> Sand 62'-76' <br /> B-6: Sand/Silt/Clay 0-20'; Sand 20'-31'; <br /> Sand/Gravel 31'-33'; Clay/Silt 33'-72'; <br /> Sand 72'-81' <br /> Ernie's 3rd 5-Year 750'W 56.98 (min) NNE, 0.002-0.005 Not Available MTBE <br /> General Review, Sept to 76.65 <br /> Store 2011 (max) <br /> Stockton MW Boring 500' NNE 52 (min)to Not Available MW-10: Sandy silt 48-60'; Silty sand 63- TPH (gas& diesel); <br /> Warehouse Log, 2008; 70 (max) 65', Sandy silt 68-75'; Clay 78-85' BTEX; O&G; Heavy <br /> Site Closure metals; MTBE; 1,2- <br /> Letter, 2011 DCA <br /> SPI Phase II 0' Not Not measured Not logged 1,1-DCE; 1,1-DCA; <br /> Report, 2011 recorded 1,2-DCE; TCE <br /> Blankinship&Associates, Inc. Page 17 of 20 September 23, 2022 <br /> NES, Inc. <br />