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N owl 114d <br /> Shell Sites <br /> Page 3 <br /> 6131 Pacific Avenue, Stockton <br /> A Remedial Action Plan was to be submitted on November 21,2005. Shell is in the process of <br /> obtaining permits from OMI (City of Stockton) for disposal of extracted groundwater and Air <br /> Pollution Control for discharge of treated extracted vapor to the air from the interim and permanent <br /> dual phase extraction (DPE) system. Shell expects to have the DPE equipment on site in January <br /> 2006. <br /> 3725 Tracy Blvd.Tracy <br /> An SCM is being prepared for this site. Batch extraction of ground water was performed and results <br /> of quarterly groundwater sampling have shown no rebound of contaminants. Chevron has a <br /> monitoring well cross gradient from the Shell site that has about 300 ug/1 of MTBE so Shell may <br /> need to place a monitoring well between the two sites. To justify closure of the site Shell should <br /> contour or otherwise utilize the Chevron and Shell data to show the MTBE is not from Shell. <br /> 880 Victor Road,Lodi <br /> A temporary groundwater extraction system has been in operation since September 29,2005. <br /> Information on extraction of water from MW2 (4 inch well) and MW4(6 inch well)will be included <br /> in the next quarterly report. Installation of additional on-site monitoring wells and a soil boring were <br /> performed November 21 through 28,2005. <br /> 4315 Waterloo Road,Stockton <br /> The work plan submitted on July 5,2005,was approved by EHD on November 9, 2005. The work <br /> is scheduled to be performed on December 12 through 16, 2005. <br /> 1160 Yosemite Avenue Manteca <br /> An SCM is to be prepared and Shell may be able to justify closure of the site. <br /> If you have any questions or comments please contact the appropriate LOP staff overseeing the site <br /> or call me at(209) 468-3449. <br /> Donna Heran,REHS,Director <br /> Environmental Health Department <br /> Margaret Lagorio,Supervising REHS <br /> Site Mitigation Unit <br /> c CVRWQCB—James L.L.Barton,RG <br /> Cambria—Joe Neely,Aubrey Cool <br />