FIELD DOCUMENTS_FILE 1 - Laserfiche WebLink

Home Browse Search

CHRONOLOGY MARCI'S DIESEL SERVICE 2969 LOOMIS RD STOCKTON CA PAGE 2 the clayey soils found at the site and the very restrictive aquifer. PHS-EHD concurs with the recommendation for closure. A mass balance of remaining hydrocarbons was calculated for this site using a cylinder with a 30 foot radius and a 60 foot height, a bulk density value for clay of 120 lbs/ft', and an average hydrocarbon concentration for diesel of 9961.0 ppm. The total calculated affected volume is 169,646 ft3 and the estimated mass in this area is 202,781 lbs of diesel. TABLE 1 RESULTS OF SAMPLE ANALYSES - PREVIOUS SOIL BORINGS MAKCI'S DIESEL SERVICE STOCKTON, CALIFORNIA Pae 1 of 3 Depth Total Sam le (FBGS) TPHg TPHd Benzene Toluene Eth lbenzene Xylenes Soil Samples from Soil Borings MW1 26 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW1 36 <1.0 140 <0.005 <0.005 <0.005 <0.005 MW1 48.5 <1.0 66 <0.005 0.033* 0.030* 0.240* MWl 58.5 <1.0 69 <0.005 0.020* 0.025* 0.034* MW1 68.5 <1.0 21 <0.005 0.012* <0.005 0.094* MW1 77 <1.0 2.9 <0.005 <0.005 <0.005 <0.005 MW2 48.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW2 53.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW2 58.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW2 63.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW2 76 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW3 48.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW3 53.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW3 63.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW3 68.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 MW3 72.5 <1.0 <1.0 <0.005 <0.005 <0.005 <0.005 NT=Not Tested <=Not Detected at concentrations above laboratory detection limits TPHg=Total petroleum hydrocarbons as gasoline TPHd=Total petroleum hydrocarbons as diesel Results given in milligrams per kilogram(ppm) FBGS =Depth in feet below ground surface * = Diluted sample owing to instrument saturation 2