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Monier Roof Tile <br /> SITE HISTORY <br /> On May 11 , 1995 one (1 ) 10,000 gallon #2 diesel storage tank (tank #39-158802) <br /> was removed under the direction of San Joaquin County Public Health Services <br /> and the French Camp Fire Department Fire Prevention Division. (Permit <br /> #FP9500050) <br /> Subsequent to the removal of the tanks soil samples were obtained from the North <br /> and South End of the excavation (TP-1 at -14 1/2' and TP-2 at 12' respectively). <br /> TP-1 revealed the presence of diesel fuel contamination at a level of 9,000 p.p.m <br /> while TP-2 was non-detectable. Four samples were also obtained from the <br /> overburden soil stockpile and composited at the lab. The overburden soil was <br /> found to contain an average concentration of 930 p.p.m. diesel fuel. Upon <br /> completion of obtaining soils samples the excavation was loosely backfilled with <br /> the overburden soil to stabilize the excavation and reduce the potential safety <br /> hazards. <br />