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City of Stockton A68109.01B <br /> July 18, 1997 Page E-3 <br /> L <br /> LEACHING POTENTIAL ANALYSIS WORK SHEET <br /> i <br /> Project: Fire Station Number Nine Date: 02107197 <br /> Project No.: A68109.01B Client: City of Stockton <br /> L <br /> Location: 550 East Harding Way Depth to Groundwater: 48 feet <br /> Sample No.: SP-2-16 Sample Depth: 16 feet <br /> Chemical Analyses Results: TPH-G NA TPH-D: 24 <br /> (milligrams per kilogram) B/T/E/X: <0.005 10.01 / 0.01Z 0.007 <br /> S SCORE 10 PTS SC SCORE 9 PTS S SCORE 5 POINTS <br /> SITE C IF O IF C IF CONDMON Is <br /> O CONDITION RE CONDITION O MET <br /> FEATURE R IS MET 15 MET R <br /> E E <br /> Minimum Depth to Groundwater from the >100 51-100 25-501 <br /> 1 p <br /> Soil Sample(feet) = 32 ft 5 <br /> i <br /> I L Fractures in subsurface(applies to foothills None Unknown Present <br /> or mountain areas) 10 <br /> Average Annual Precipitation(inches) <10 9 10-25 26-402 <br /> i <br /> { Man-made conduits which increase vertical None Unknown Present <br /> migration of leachate 10 <br /> Unique site features: recharge area,coarseNone At least one More than one <br /> soil,nearby wells,etc. 10 <br /> COLUMN TOTALS—TOTAL PTS + + _ <br /> r <br /> 30T 9 5 44 <br /> RAINGE OF TOTAL POINTS 49 pts or more 41 -48 pts 40 pts or less <br /> MAXIMUM ALLOWABLE 1/50150/50 .3/.3/1/1 NA3 <br /> B/T/E/X LEVELS(PPM) <br /> MAXIMUM Gasoline 1,000 100 10 <br /> f ALLOWABLE TPH <br /> 1LEVELS(PPM) Diesel 10,000 1,000 100 <br /> { <br /> NOTES: <br /> 1 - If depth is greater than 5 ft.and less than 25 ft.,score 0 pts. If depth is less than 5 ft, this table should not he used. <br /> 2 - If precipitation is over 40 inches,score 0 pts. <br /> i <br /> 3 - Level for BTEX are not applicable at TPH concentrations of 10 ppm(gasoline)or 100 ppm(diesel). <br /> i <br /> ii <br /> Table reproduced from State of California Water Resources Control Board LUFr Field Manual. <br /> The analytical results of this soil sample DO NOT exceed the maximum allowable levels <br /> for benzene, toluene, xylenes, or total petroleum hydrocarbons-diesel range constituents. <br /> L <br /> t: <br />