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ENYt <br /> KAPREALIAN ENGINEERIi' G9 INC. OPER TIONS <br /> 2FAAF EN . <br /> 4Pf AA7�ONE O�AAR T7M{nT <br /> Consulting Engineers 1 <br /> P.0. BOJ( 913 MAY 8 1989 <br /> BENICIA. CA 94510 <br /> (415)676•9100 (707)746•6915 <br /> KEI-P88-0810.W2 <br /> May 5, 1989 <br /> Mobil Oil Corporation <br /> 3800 West Alameda Ave. , Suite 700 <br /> Burbank, CA 91505-4331 <br /> Attention: Mr. David Noe <br /> RE: proposed Work Plan for <br /> Additional Investigation <br /> Former Mobil Bulk Plant <br /> 500 E. Grantline Road <br /> Trac California <br /> Dear Mr. Noe: <br /> The activities described in this proposal are intended tosupply <br /> information for . characterizing the extent and magnitude of <br /> hydrocarbon in the subsurface. Once results from these activ- <br /> ities are available, a plan for remedying site conditions can be <br /> developed. Such a plan would include identifying the type(s) and <br /> location(s) of possible remedial actions, estimating the project- <br /> ed . effectiveness and costs of those options, assessing the <br /> selected option's benefits and appropriateness, and other such <br /> aspects. From an engineering perspective, a remedial plan should <br /> not..be developed at the present time since the extent of dis- <br /> solved product, and its dissolved components on ground water use <br /> and other natural resources, and the ground water flow system's <br /> physical parameters are presently not well defined. Without that <br /> information, the effectiveness of remedial options cannot be <br /> evaluated. <br /> A. phased approach has been selected to. address the problem at <br /> hand. Phase. I will consist of defining the extent of contamina- <br /> tion on-site. <br /> Subsequent Phase II activities will consist .of the planning and <br /> development of appropriate remedial options, followed by im- <br /> plementation of the preferred option. <br />