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. - - <br /> a <br /> Taeaw <br /> NO <br /> Leaching Potential Analysis for Gasoline <br /> Using Total Petroleum Hydrocarbons (TPH) ' <br /> and Benzene, Toluene, Xylene and Ethylbenzene (BTX&E) <br /> f <br /> S SCORE I S SCORE S SCORE <br /> I <br /> SITE C 10 PI'S C 9 PTS C 5 PTS <br /> O IF CON- O IF CON- 0 IF CON- <br /> FEATURE R DITION R DITION R DITION <br /> j E IS MET E IS MET E IS MET <br /> Minimum Depth to >10051--100 0 25-50'� <br /> Ground Water from the- <br /> Soil Sample (feet) <br /> Fractures in subsurface 10 None Unknown Present <br /> (applies Lo foothills <br /> � or mountain areas) <br /> Average Annual <10 . 8 10-25 26-40** <br /> " <br /> Precipitation <br /> i (inches) <br /> " Man-made conduits which 10 None Unknown Present 54, <br /> increase vertical <br /> migration of leachate <br /> Unique site features: 10 None At least More <br /> recharge area, coarse _ one than one <br /> r soil, nearby wells, etc <br /> a <br /> COLUMN TOTALS-TOTAL.PTS30 9 + 0 - 39 <br /> RANGE OF TOTAL POINTS 49pts or more 41 - 48 pts 40pts or less <br /> MAXIMUM .ALLOWABLE 1/50/50/50 .3/.3/1/3. .3/.3/.3/.3 <br /> B/T/X/E. LEVELS (PPM) <br /> MAXIMUM ALLOWABLE 1000 100 10 <br /> i <br /> TPH LEVELS (QPM) <br /> if depth: is under 25 feet score 0 .points. <br /> If Precipitation is. over 40 inches score 0 points:. <br /> Narding Law/brl Agape lafis <br /> Leaching Potential Worksheet FATE <br /> Engineers and Geoscienhsts <br /> Southland CorpJrati on <br /> Tracy, California <br /> -DRAWN JOB NUMBER <br /> APPROVE" <br /> -- T DATE REVISED -- DATE••' <br /> E YC :17060,011.03 tr�l� <br />