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MiTABLE 1 M M <br /> LABORATORY ANALYSIS RESULTS: TANK EXCAVATION AND PIPE TRENCH SAMPLING <br /> STAGG HIGH SCHOOL (DECEMBER 1990) <br /> HL100814 <br /> Sample Date Locationa Depthb TEPH TPH-G Benzene Toluene Ethylbenzene Xylenes EDB Lead OVAL <br /> Collected (ft) (mglKg) (mg/Kg) (uglKg) (UG/Kg) (ug/Kg) (ug/Kg) (ug/Kg) (mglL) Reading <br /> (ppm) <br /> 035 12/20/90 NE Corner of Tank#1 13 <1 NA <1 <1 <1 <1 NA NA <5 <br /> 036 12/20/90 NW Corner of Tank 13 <1 NA <1 <1 <1 <1 NA <br /> #1 NA <5 <br /> 037 12/20/90 Piping#1 2.75 <1 NA <1 <1 <1 <1 NA <br /> NA <5 <br /> 038 12/20/90 Piping#2 2.8 <1 NA <1 <1 <1 <1 NA <br /> NA <5 <br /> 039 12/20190 SE Corner of Tank#1 14 1200 NA <1 <1 <1 <1 NA NA < <br /> 5 <br /> 040 12/20/90 SW Corner of Tank#1 13: <1 NA <1 <1 <1 <1 NA NA <5 <br /> Doi 12/20/90 Remote fill#1 3 <1 NA <1 <1 <1 <1 NA NA <5 <br /> 042 12120190. Remote till#2 3 <1 NA <1 < <br /> j 1 <1 <1 NA NA <5 <br /> 043 12/20/90 Remote fill#3 3 <1 NA <1 <1 <1 <1 NA NA <5 <br /> 044 12120/90 Remote fill#4 2.8 <1 NA <1 2 <1 <1 <br /> NA NA <5 <br /> 045 12/20/90 Remote till#5 3 5000 NA <500 <500 950 1400 NA <br /> NA 5 <br /> 046 12/20/90 Remote fill 96 3 3.0 NA <1 <1 <1 <1 NA NA <5 <br /> 047 12/20/90 Remote fill#7 3 <1 NA <1 <1 <1 <1 NA NA <5 <br /> 048 12/20/90 Remote fill#8 3.5 <1 NA <1 1 11 2 NA NA <5 <br /> 049 12/20/90 Remote fill#9 3.5 1.6 NA <1 <1 <1 <1 <br />� NA NA <5 <br /> 050 12/20/90 Remote fill#10 3.5 <1 NA <1 <1 <1 <1 NA NA <5 <br /> 051 12/21/90 Center of Tank#1 16 <1 NA <1 <1 <1 <1 NA <br /> NA <5 <br /> 034 12/20/90 Tank#2 7.5 15 290 75 2500 1900 20000 4.1 <0.5 2500 <br /> a. Refer to Figures 1 and 2 for approximate locations of tanks and sample locations. Tank No. 2 is a 500-gallon gasoline lank. Tank 1 is a 10,000-gallon <br /> diesel tank(Tank No. 1),which requires no further action and is not included on either site map. <br /> b. Depth below existing ground surface at time of sampling. <br /> G. Concentration in container headspace as measured in the field with a Foxboro-FID portable OVA equipped with a flame ionization detector. Concentrations <br /> are expressed in parts per million (ppm) by volume as methane equivalent. <br /> TEPH= Semivolallle Petroleum Hydrocarbons identified as diesel <br /> TPH-G=Total Petroleum Hydrocarbons as gasoline <br /> NA=Not Analyzed <br /> "<"=Laboratory Limit of Detection <br />