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-WEGE- <br /> 8ylene 100 1000 16mmHg 1.1 81 <br /> 0411%, Presh Gasoline 80-90 psi 1.3 -50 <br /> Degraded Gasoline/ <br /> Fuel Oil 02(Diesel) 0.05 psi none 110/190 <br /> Kerosine #1 Fuel Oil none 100/165 <br /> a IDLH Immediately Dangerous to Life or Health <br /> of LEL Lower Explosion Limit <br /> psi pounds per square inch <br /> C Carcinogen <br /> mmHg millimeters of Mercury <br /> F Fahrenheit <br /> CHARACTERISTICS OF EXCAVATED SOIL SP-1 <br /> The excavated soil is piled and covered. It consists of a silty, <br /> Clayey, dark brown sand. The samples were relatively moist <br /> (approximately 15-20% moisture content) . As the soil is excavated ' <br /> it exhibits large blocks. As it is worked (aeration of SP-2, SP-3 <br /> and SP-4) the large blocks Can be reduced to a gravel through silt <br /> size material, and the moisture Content reduced to approximately <br /> 5-10%. This material produced minor dust (wine blown material) . <br /> As can be seen in Table 3, the highest benzene is reported as 0.4 <br /> Ppm, highest toluene as 20 ppm, the highest ethylbenzene as 34 <br /> ppm, the highest xylenes as 340 ppm, the highest gasoline range <br /> TPH as 4600 ppm, and the highest kerosene TPH as 2000 ppm. Diesel <br /> and oil range TPH is <10 ppm. <br /> The gasoline range hydrocarbons are of a degraded gasoline as is <br /> evident by the kerosene range being calculated and the low benzene <br /> values as compared to the xylene values (benzene has a higher <br /> vapor pressue and thus will disperse quicker than the xylenes) . <br /> The Aquatic Toxicity test showed 100% survival of the Fathead <br /> minnows after 96 tours in both the 250 mg/L and 750 mg/L <br /> concentrations. <br /> The metals that are found in the sample are well below the. <br /> concentrations of a hazardous material and most likely represent <br /> the background levels of these metals, Stockton sediments are <br /> derived from the western foothills of the Sierra Nevada Mountain <br /> Range which is documented as highly mineralized. <br /> CONCLUSIONS <br /> The contaminated soil designated as SP-1 is the worst case that <br /> has been excavated from this site. The soil was excavated in <br /> order to remove underground storage tanks that were used to store <br /> gasoline at the site. Following the guidelines set forth in the <br /> State of California, California Code of Regulations, Title 22 <br /> Social Security, Division 4. Rnvironmetal Health, the proper <br /> chemical and ph,sical analysis were ran for a fuel type <br /> 4 <br /> i <br />