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GEOMATRIX <br /> TABLE 3 <br /> CONCEPTUAL ORC PILOT STUDY COST ESTIMATE <br /> Corral Hollow and Grant Line Roads Site, Tracy, California <br /> Assumptions: <br /> 1. Place ORC in 4 onsite monitoring wells(MW-6,-7,-8,and-12)at start of pilot study. Monitoring of dissolved oxygen <br /> will be conducted at the time of ORC placement and once a month for a total of 12 months. <br /> 2. The 4 wells will be sampled for BTEX and TPHg analyses once per quarter. <br /> 3. 'Documentation will consist of preparation of a work plan,field notes,and final reporting. <br /> Activity Quantity Unit Unit$ Cost$ <br /> ORC Pilot Study <br /> Pilot study design(work plan) .20 hr 100 2,000 <br /> field monitoring(12 times)and ORC placement(4 times): 90 hr 65 5,850 <br /> field monitoring equipment 12 day 250 3,000 <br /> groundwater sampling equipment 4 day 250 1,000 <br /> laboratory analysis:BTEX and TPHg(8021) 16 ea 79 1,264 <br /> laboratory analysis:PAHs(8270C SIM) 0 ea 215 0 <br /> laboratory analysis:TPHd w/silica gel cleanup(8015M,3630) 0 ea 76 . 0 <br /> laboratory analysis:TPHd(8015M) 0 ea 76 0 <br /> laboratory analysis:nitrate&sulfate(300) 0 ea 50 0 <br /> laboratory analysis:alkalinity(310.1) 0 ea 22 0 <br /> laboratory analysis:dissolved iron(6010) 0 ea 22 0 <br /> initial ORC placement(10 2"-dia.socks in ea.well) 40 ea 30 1,200 <br /> ORC changeout:estimated 3 for remaining of year 120 ea 30 3,600 <br /> data compilation,evaluation,and reporting 40 hr 100 4,000 <br /> misc.(copy,fax,mail,etc.) 1 ea 200 200 <br /> 10%project management cost 0.1 21,914 2,191 <br /> 25%contingency cost 0.25 21,914 5,479 <br /> TOTAL: $29,784 <br /> is\doc_safe\2000s\c2463\2463 orc pilot.xls <br />