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C <br /> {,.. August 8, 1988 AGS Job No. 38053-1 <br /> Former Texaco Service Station, Manteca, California <br /> TABLE 2 <br /> CHEMICAL RESULTS OF SOIL AND WATER SAMPLES <br /> COLLECTED BY CANONIE ENVIRONMENTAL <br /> Former Texaco Service Station <br /> 941 East Yosemite Avenue <br /> Manteca, California <br /> sample Total Total <br /> Number TPH Benzene Toluene Xylenes EDB Lead <br /> SOIL <br /> Zeta 580 <200 <200 290 <20 29.5 <br /> WATER <br /> Zeta W <2 <0.05 0.06 0.63 <0.05 <0.005 <br /> i <br /> Samples collected March 14, 1988 <br /> All results in parts per million (ppm) <br /> TPH = Total petroleura hydrocarbons <br /> EDB = Ethylene dibromide <br /> < = Less than the detection limit for the analytical <br /> methods used <br /> Sample Number: <br /> Zeta = Middle of tank cavity <br /> 40 GEOLOGY <br /> The site is located is the San Joaquin Valley geomorphic province <br /> 0 of California. The valley has been a sedimentary trough since <br /> pre-Cretaceous time. Most of the pre-Cretaceous to mid-Tertiary <br /> sediments in this portion of the valley are of marine origin, <br /> iY while the late Tertiary to Recent sediments consist primarily of <br /> continental deposits. Depositional and erosional sequences were <br /> primarily controlled by fluctuations in sea level. Fresh water <br /> - --� - -lakes--formed-in-the--valley-,--resulting--in--the------ -- <br /> 5 <br /> �' Apv1ied G,60SYSMInS <br />