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IWh oft WoWM WM IJIlW'.W WMW iF:iiitl, wwlli: 1wrr� <br /> TABLE l: LABORATORY ANALYSIS RESULTS FROM TANK EXCAVATION <br /> AND PIPE TRENCH SOIL SMiPLING AT STAGG IIIGII SCIKIOL <br /> STOCKTON UNIFIED S010OL DISTRICT <br /> 111-1 0089002 <br /> Sample Date L,ocationa Depthb TEP11 TPII-G Benzene Toluene Ethylbenzene Xylenes Ethylene Load MjAc <br /> Collected (ft) (mg/Kg) (mg/Kg) (ug/Kg) (ug/Kg) (ug/Kg) (W/Kg) Dibromide (mg/L) <br /> ug/Kn <br /> 035 12/20/90 NE Corner of Tank 11 13 <1 NA <1 'Cl <1 <1 NA NA <br /> 036 12/20/90 NW Corner of Tank 11 13 <1 NA <1 <1 <1 <1 NA NA037 12/20/90 Piping 11 2.75 0 NA <1 <1 <1 <1 NA NA= W ___038 =12/20/90- ---Piping 12___---� =2.8-�,. _ c1... NA - cl039 12/20/90 SE Corner of Tank 1l 14 1200 NA <1 cl <1 <1 NA NA <br /> x. .04012/20/90 5W Corner of'Tank'11`_ --13. ___. <l.. W, -NA >»r ' 1- _... <1�--.- __ -<1 .• .._ c1- - <br /> 041 12/20/90 Remote fill 11 3 Cl NA <1 <1 cl <1 NA NA <5 <br /> 042 12/20/90 Remote fill 12 3 <1 NA <1 <1 <1 <1 NA NA <5 <br /> 043 12/20/90 Remote fill 13 3 <1 NA <1 <1 <1 <1 NA NA <5 <br /> 044 12/20/90 Remote fill 14 2.8 <1 NA <1 2 <1 <1 NA NA <5 <br /> 045 12/20/90 Remote fill 15 3 5000 NA <500 <500 950 1400 NA NA 5 <br /> 046 12/20/90 Remote fill 16 3 3.0 NA <I <1 <1 <1 NA NA <5 <br /> 047 12/20/90 Remote fill 17 3 0 NA <1 <I <I <1 NA NA <5 <br /> 048 12/20/90 Remote fill 18 3.5 <I NA <1 1 <1 2 NA NA <5 <br /> 049 12/20/90 Remote fill 19 3.5 1.6 NA <I <I <1 <1 NA NA <5 <br /> 050 12/20/90 Remote fill 110 3.5 <1 NA <1 cl <1 <1 NA NA <5 <br /> ' 051 12/21/90 Center of Tank 11 16 41 NA <1 <I <1 <1 NA NA <5 <br /> 034 12/20/90 Tank 12 7.5 15 290 75 2500 1900 20000 4.1 <0.5 2500 <br /> a. Refer to Figures 1, 2, and 3 for approximate locations of tanks and sample locations. Tank Nos. 1 and 2 are 10,000-gallon diesel and 500-gallon <br /> gasoline tanks, respectively. <br /> b. Depth below existing ground surface at time of sampling. <br /> C. Concentration in container headspace as measured in the field with a Porta-f10 portable OVA equipped with a flame ionization detector. Concentrations <br /> are expressed in parts per million (ppm) by volume as methane equivalent. <br /> TEPH - Semivolatile Petroleum Hydrocarbons identified as diesel <br /> TPH-G y Total Petroleum Hydrocarbons as gasoline <br /> �• NA Not Analyzed <br /> Laboratory Limit of Detection <br /> I <br />�" ff <br />