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fms's' <br /> Table 2-1 Gasoline and Diesel <br /> fes, Leaching Potential Analysis FYr <br /> Analy drocarbons(TPH) <br /> Using Total Petroleum lbenzene (BTX&E) <br /> and Benzene, <br /> Toluene, Xylene and Ethy <br /> designed to per estimating lace without <br /> The following table was that can be Left in P <br /> and BTX&E of TPH and BTX&E <br /> concentrationsOof dTwater. Three levels for sites which fall into <br /> threatening g (from modeling)potential. To use the <br /> concentrations were derived ( leaching P <br /> of low, medium or high tion for each of the features. <br /> categories ro riate descrip at the top of <br /> table, find the appropriate the weighting system shown Match <br /> Sum the p each column and total them. <br /> score each feature using <br /> .the <br /> for and TPH levels. <br /> each Column' Su to the allowable BTX&E S SCOFcE <br /> the total P S SCORE S <br /> S SCORES C g PTS C 5 P'CON- <br /> C 10 PT 0 IF CON- 0 IF <br /> SITE 0 IF CON- R DITIOB <br /> g DITION R IS MEN E IS LET <br /> FEATURE E I5 MET E IS MET <br /> >100 <br /> 51-100 <br /> Depth to <br /> Minimum from the <br /> Ground water(feet) <br /> Soil Sample ( Unknown Present <br /> None <br /> Fractures in subsurface <br /> (applies to foothills <br /> or mountain areas) 10-25 26-40\1 <br /> Average Annual <br /> Precipitation pinches) <br /> Kone <br /> Unknown Present <br /> Man-made conduits which <br /> increase vertical <br /> migration of leachate At least More <br /> None than one <br /> Unique site features! one <br /> rocharge area, coarse <br /> Heathy wells, etc <br /> i soil, + <br /> TOTAL PTS + <br /> i COLUMN TOTA15i aS pts 4opts or less <br /> RANGE OF TOTAL POINTS 49pts or mare 41 - <br /> 1/50/50/50 <br /> .3/.3/1/1 NAS <br /> MAX HUM, ALIO AB pPM) <br /> B/T/X/E LEVE 100 10 <br /> GASOLINE 1000 f <br /> MAXIMUM 1000 100 <br /> ALLOWABLE TPH DIESEL 10000 score 0 <br /> LEVELS (PPM) than 25 ft. , <br /> a ftan <br /> If depth is greater than 5 . d less used. <br /> Dints - this_table should not be - - - - - - - —-- <br /> -- <br /> __.._or-.less_._. _ ..._ o-. Dints... <br /> ' If depth is 5 € over 40 inches, score POf <br /> If precipitation is licable at a TPH concentration e <br /> not a (diesel) (For explanation see step <br /> Levels for BTX&E oel00ppaPp <br /> loppm (gasoline) <br /> 6, page 27.) <br /> 24 <br /> 01 i <br />