Laserfiche WebLink
Frontier Transportation, Inc. B23502.01 <br /> October 16, 1996 Page 8 <br /> The disposition of the soil cuttings, rinsate, and purge water will be determined based on <br /> ' the soil and groundwater sample analytical results. Disposal of the soil cuttings, rinsate, and <br /> purge water is the responsibility of the client. <br /> ' 4.2 LaboratgU Testing Program: Soil samples were selected for chemical analysis based <br /> on SJCEHD assessment criteria and previously collected data. Benzene, toluene, <br /> ethylbenzene,xylenes (BTEX), total petroleum hydrocarbons -gasoline range (TPH-G)and <br /> total petroleum hydrocarbons - diesel range (TPH-D) were used in the laboratory testing <br /> program as indicator parameters for soil samples collected from hand augered soil borings <br /> assessing the extent of PPC migration beneath the former dispenser island and product <br /> piping. BTEX and TPH-G were used in the laboratory testing program as indicator <br /> parameters for soil samples collected from drilled soil borings assessing the extent of PPC <br /> migration in the vicinity of the former gasoline USTs. <br /> ' Consistent with Twining's work plan dated January 2, 1996, BTEX and TPH-G were also <br /> used in laboratory testing of groundwater samples collected from monitoring wells MW-1 <br /> through MW-3. In a telephone conversation on August 21, 1996, Mr. Steve Sasson, of the <br /> SJCEHD,required that the groundwater sample also be analyzed for TPH-D concentrations. <br /> Preparation and analytical methods for the laboratory analyses are summarized in Table 4. <br /> ... ..... .... 100 ........ <br /> TALE . . <br /> 4' . . ... ...... .... ....... <br /> Pre arat�on and Anal 1cal <br /> ..P........ .. .... ........ . :.. .Methods <br /> Type of Analysis Preparation Method Analy&g Method Method MtCCfKM Limit <br /> Soil Sample Analyses <br /> Benzene,Toluene, Ethylbenzene,and 50301 80201 0.005 mg/kg <br /> Xylenes(BTEX) <br /> Total Petroleum Hydrocarbons-Gasoline 50301 GC/FID2 1-0 mg/kg <br /> Range Constituents MH-G) <br /> Total Petroleum Hydrocarbons-Diesel 35501 GC/nD2 2.0 mg/kg <br /> Range Constituents(TPH-D) <br /> Groundwater Sample Analyses <br /> Benzene,Toluene, Ethylbenzene,and 50301 602 0S jug/L <br /> Xylenes(BTEX) <br /> Total Petroleum Hydrocarbons-Gasoline 50301 GC/FID2 1.0 ftg/L <br /> Range Constituents (rPH-G) <br /> Total Petroleum Hydrocarbons-Diesel 35501- GC/FID2 50,ug/L - <br /> Range Constituents(TPH-D) <br /> GC/FID = Gas Chromatography/Flame Ionization Detection <br /> mg/kg = milligrams per kilogram <br /> ug/L = micrograms per liter <br /> 1 United States Environmental Protection Agency(U.S.EPA),1983 <br /> 2 California State Water Resources Control Board, 1989 <br />