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Dividend 'Development company July 22i 1991 <br /> Report of Findings - North Parcel Page 15 <br /> 91 <br /> Regardless of which pipeline was the petroleum contamination <br /> source, it is predicated that the petroleum contamination emanated <br /> from the Southern Pacific Railroad Right of Way. The southern <br /> Pacific Railroad Right of Way is hydrologically upgradient from the <br /> Dividend <br /> property, as shallow groundwater is reported to flow ' <br /> northeastward. <br /> RECOMMENDATIONS: <br /> Immediate removal of free floating product is recommended to <br /> preclude further migration of petroleum hydrocarbon contamination <br /> into the site from the pipeline easement. <br /> i <br /> Soil and water contamination must be mitigated in accordance with <br /> applicable regulatory requirements. <br /> All mitigation can be performed simultaneously with construction <br /> activities. Risk analysis had indicated no vapor fumigant level in <br /> excess of allowable concentrations in sealed, slotted soil and <br /> water monitoring wells. <br /> ED Gia <br /> Si y, . C0 <br /> T c Technolog , C. Toxic Technology, Inc. f <br /> 1 <br /> LLINS, JR. <br /> F ScKiVmg, r , Ph.D. Adam P. Zipp, h.D. <br /> S ologist �`�` chairman <br /> of cAL�F°�� <br /> Toxic TechnoZ.ogy, Inc. <br /> David Blakel RA } <br /> Sr. Scientist Pri P. 1 <br /> JFcj t �* + <br /> Enclosures +L. <br /> Toxic Technology, Inc. <br />