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Greyhouncl Terminal/Garage, Stockton, California <br /> Leaching Potential Analysis for Diesel <br /> Lysing Total Petroleum Hydiocarbon(TPH) <br /> and Benzene,Toluene,Xylenes and EthyIbenzene(BTX&E) <br /> Score 10 Score 9 Score 5 <br /> Site Score paints if Score points if Score points if <br /> Feature condition condition condition <br /> is met Is met is met <br /> -. Minimum Death to <br /> Groundwater from 0 X100 0 51-100 0 25-50(a) <br /> �the Soil Sample ft <br /> Fractures in subsurface <br /> (applies to foothills or 10 None 0 Unknown 0 Present <br /> mountain areas <br /> Average Annual <br /> Precipitation (inches) 0 <10 9 10-25 0 26-40(b) <br /> Man-made conduits <br /> which Increase vertical 10 None 0 Unknown 0 Present <br /> migration of leachate <br /> Unique site features: At least More than <br /> recharge area, coarse 10 None 0 one 0 one <br /> soil,nearby we!ls,etc. <br /> : Total Boints 30 + 9 + 0 —a 39 <br /> Range of tutal points 49 eolnts or more 41 'to 48 ppints 40 points or less <br /> Maximum allowable 1/50/50/50 0.3/0.3/1/1 NA(c) <br /> B/T/E/X levels m <br /> Maximum allowable 10,000 1000 100 <br /> TPH levels (ppm) <br /> (a) If depth is between 5 and 25 feet score 0 points; if It Is less than 5 feet, <br /> .� this table should not be used. <br /> (b) If precipitation is over 40 Inches,score 0 points. <br /> (c) Levels for BTX&E are not applicable at a TPH concentration of 100 ppm. <br /> grvyr„os w41 <br /> 11lD51'81 <br />