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CORRAL HOLLOW UNDERGROUND TANK <br /> TEST RESULT SUMMARY TABLE <br /> Sample Description Methyl tert- <br /> DATE Benzene Ethyl Beaune Butyl Ether Toluene Xylene TPH-Diesel <br /> U&9 uB/kB ug/kg ug/kg u8&8 n►6/k6 <br /> SAMPLES TAKEN AT TH41E OF TANK REMOVAL <br /> Tank East-8.5' 2/20/96 ND ND Not Tested ND ND 190 <br /> Tank West-8.5' 2/20/96 ND ND Not Tested ND 23 1900 <br /> Stockpile Composite-1' 2/20/96 ND ND Not Tested ND 22 370 <br /> Dispenser- 1' 2/20/96 ND ND Not Tested ND 660 54000 <br /> C <br /> SAMPLES AFTER INITIAL EXCAVATION <br /> Dispenser Composite 6/26/96 ND ND ND ND ND 480 <br /> Tank Composite 6/26/96 ND ND ND ND ND 910 <br /> Tank Bottom-17' 6/26/96 ND ND ND 2 2 9000 <br /> Dispenser 6/26/96 ND ND ND ND ND ND <br /> Bottom- 12' <br /> Bottom- 14' 6/26/96 ND ND ND ND ND ND <br /> N.W.Sidewall-8.5' 6/26/96 ND ND ND ND ND 6700 <br /> TEST RESULTS AFTER ADDITIONAL EXCAVATION <br /> Composite North Piles 9/10/96 ND ND ND ND ND 120 <br /> Composite South Piles 9/10/96 ND ND ND ND ND ND <br /> N.Wall 14.5' 9/10/96 ND ND ND ND ND ND <br /> Tank Bottom 16.51*+ 9/10/96 ND ND ND ND ND ND <br /> 6.5'add.Excavation <br /> S.W.Conner 12.5' 9/10/96 ND ND ND ND ND ND <br /> TEST RESULTS AFTER BIOREMEDIATION OF PILES <br /> C to of Piles 6/11/97 ND I ND I ND I ND ND 60 <br /> * This measurement was taken from a bench which was excavated along the original north wall. The actual depth is approximately 23'from the top <br /> of the original top of the tank hole. <br />