Laserfiche WebLink
i� <br /> TABLE 1: LABORATORY ANALYSIS RESULTS FROM TANK EXCAVATION <br /> AND PIPE TRENCH SOIL SAMPLING AT EDISON HIGH SCHOOL <br /> STOCKTON UNIFIED SCHOOL DISTRICT <br /> HLI 0089002 <br /> Sample Date Location' Depthb TEPH TPH-G Benzene Toluene Ethylbenzene Xylenes Ethylene Lead OVA` <br /> Collected (ft) (mg/Kg) (mg/Kg) (ug/Kg) (ug/Kg) (ug/Kg) (ug/Kg) Dibromide (mg/L) Reading <br /> (ug/Kg) (ppm) <br /> 014 11/19/90 Corner of. 12.5 9.9 NA <1 <1 <1 <l NA NA 0 <br /> Tank #1 <br /> 015 11/19/90 Corner o. 12.5 <1 NA <1 <1 <1 <l NA NA 0 <br /> Tank # <br /> 016 11/21/90 Corner of 13 20 NA <1 <1 <1 <1 NA NA 0 <br /> Tank #I <br /> 017 11/21/90 North Side 12.5 290 NA <1 <1 <1 <1 NA NA 0 <br /> of Tank # <br /> 018 11/21/90 Piping #1 4 41 NA <1 <1 4 30 NA NA 12 <br /> 019 11/21/90 Piping #2 3.5 <1 NA <l <1 <1 <1 NA NA I <br /> 020 11/21/90 Piping #3 4 <1 NA <1 <1 <1 <1 NA NA 0 <br /> 021 11/21/90 Piping #4 4 <1 NA <1 <I 41 41 NA NA 0 <br /> 022 21190 Piping < NA <i <1 <I <1 NA NA 0 <br /> 023 11/21/90 Piping #6 4 <1 NA -Cl <1 <1 41 NA NA 0 <br /> 024 11/21/90 Piping #7 4 <1 NA <1 <1 <t <1 NA NA 0 <br /> 025 12/6/90 Center of 14 434 NA <1 <1 <1 <3 NA NA NA <br /> Tank #1 <br /> i <br /> 013 11/19/90 Center f 7.5 NA <0.05 <1 <1 <i <1 <0.1 <0.5 0 <br /> Tg-nr-#2— <br /> a. Refer to Figures 1, 2, and 3 for approximate loCafions of tanks and sample locations. Tanks No. l and 2 are 10,000-gallon diesel and 500-gallon gasoline <br /> 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 Heath Detecto-Pak 2 portable OVA equipped with a flame ionization detector. <br /> Concentrations are expressed in parts per million (ppm) by volume as methane equivalent, <br /> TEPH = Semivolatile Petroleum Hydrocarbons <br /> TPH-G = Total Petroleum Hydrocarbons as gasoline <br /> NA = Not Analyzed <br /> "<" = Laboratory Limit of Detection <br />