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t i 7 <br /> PROPOSAL FOR REMEDIATION SERVICES <br /> �.� MOBIL SERVICE STATION 410-NP4 <br /> _w TRACY, CALIFORNIA <br /> Task 3 - Installation of Enhanced Soil and Groundwater <br /> Treatment System <br /> We propose to perform this work on a lump sum basis. However, <br /> until we have the additional information from task 1, the <br /> final design and cost of the treatment system cannot be <br /> developed. <br /> For budgeting purposes, we have provided a cost estimate based <br /> g g <br /> upon a conceptual design. This conceptual design is based <br /> upon current site information. <br /> Task 4 - Permitting <br /> We propose to perform this task on a time and expense basis. <br /> The cost shown does not include the actual cost of the <br /> permits. Hart Crowser's charges in support of permitting <br /> activities are estimated to be $1, 000 to $3 , 000. <br /> Task 5 - Regulatory Negotiations and Interaction <br /> This work will be performed on a time and expense basis as <br /> described in Task 3 . <br /> Task 6 - Operations, Maintenance,_ and Monitoring <br /> This work will be performed on a flat monthly rate basis for <br /> the items shown in Table 1. Equipment rental items include <br /> the air stripper, pumps, level controls and valving, and air <br /> compressor. The maintenance and monitoring cost includes all <br /> routine maintenance, system observations, laboratory testing, <br /> and monthly report. We have assumed that Mobil will bear the <br /> monthly power costs directly.. <br /> The Operations, Maintenance, and Monitoring cost is an <br /> estimate and is based upon the conceptual design in this <br /> proposal. This estimate is to be used for budgeting <br /> purposes. Upon completion of task 1 and finalization of the <br /> treatment system design, a flat monthly Operations, <br /> Maintenance, and Monitoring rate will be developed. <br /> i <br /> -10- <br />