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JM Equipment page 2 <br /> 1245 W. Charter Way, Stockton. <br /> The EHD approves the work plan as adequate and necessary [H&S Code <br /> 25296.10(c)(3)] with the following conditions; <br /> • Selected soil and all ground water samples are to be analyzed for 1,2- <br /> dichloroethane (DCA), ethylene dibromide (EDB), and the fuel oxygenates <br /> by EPA Method 8260B. <br /> • The borings are to be advanced before November 30, 2007. <br /> • The report of findings, in the format of an updated SCM, is to be submitted <br /> to Geotracker so that the EHD can review it by January 18, 2008. <br /> If the data collected during this next investigative phase indicate that the soil and <br /> ground water plumes are adequately delineated, you may submit a feasibility <br /> study. At least two remedial alternatives are to be evaluated for cost- <br /> effectiveness and feasibility. The chosen method should be declared in the <br /> feasibility study and the EHD should be advised if field tests will be conducted <br /> prior to submitting a Corrective Action Plan. <br /> If the data from the investigation to the north indicates that the plumes are not <br /> vertically and laterally defined, please include recommendations in the SCM to <br /> continue the investigation and you are to delay the submittal of the feasibility <br /> study until the EHD concurs that the site is adequately delineated. <br /> You may contact Michael Infurna at (209) 468-3454 or Nuel Henderson at (209) <br /> 468-3436 if you have any additional questions. <br /> Donna Heran, REHS, Director <br /> Environmental Department <br /> Michael J. Infurna Jr., Nuel C. Henderson Jr. PG <br /> LOP / Site Mitigation Unit IV Engineering Geologist <br /> LOP/ Site Mitigation Unit IV <br /> cc: CVRWQCB — James Barton, Sacramento <br /> Geological Technics — Raymond Kablanow, 1101 7th St., Modesto 95354 <br /> SWRCB-Clean Up Fund — Mark Owens, Sacramento <br />