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•:! <br /> - e � <br /> h <br /> t P I <br /> Golden Grain Company <br /> January 11, 1989 <br /> 202/799-5045.01 <br /> TABLE 1 <br /> WATER ANALYSES <br /> SAMPLES COLLECTED JUNE 21, 1988 <br /> (in parts per billion [ppb] ) <br /> TPH AS <br /> SAMPLE NONO. BENZENE TOLUENE ETHYLENE XYLENE GASOLINE <br /> MW-1 <br /> MW-2 ' 25,000 24,000 2,300 12,000 96,000 <br /> MW-3 <br /> MW-4 * -- -- -- -- <br /> MW-5 * -- "- 22 69 1 ,200 <br /> MW-6 42 21 <br /> MW-7 6,900 3,000 D 3. D 20Np00 <br /> N <br /> MW-8 ND ND ND ND <br /> * Free product; sample not collected <br /> ND = Not detectable <br /> In addition, GTT continued to measure the water level in the <br /> wells periodically; the results are presented in Appendix VI. <br /> MW-1 through MW-6 are too close together to provide conclusive <br /> ' data about ground-water gradients; however, water elevations in <br /> MW-8 have been significantly lower than those in the other wells <br /> each time GTI monitored. This fact strongly suggests that one <br /> component of the groundwater flow direction is to the north. <br /> Because only MW-7 currently taps the deeper water zone <br /> (below the clay layer at approximately 25 feet) , no conclusions <br /> can be drawn about the potentiometric surface or hydraulic flow <br /> in this possibly separate system• The relationship of water <br /> " levels in the upper and lower water zones since December 1987 is <br /> presented in Appendix V1 . <br /> 12 <br />