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V, <br />• <br />• <br />Chevron Products Company 2 <br />former Chevron 9 5775, 301 West Kettleman Lane, Lodi, CA April 27, 2000 <br />• Install eight 4 -inch diameter remedial (Oxygen Diffusion) wells along the southern <br />and southwest edges of the property boundary at the locations shown on Figure 2 <br />The easternmost of the 4 -inch wells will be utilized solely as a groundwater <br />monitoring well (to define the southeastern extent of contamination) if groundwater <br />analytical results are nondetect These wells will be installed according to the <br />methods and procedures previously described in Gettler-Ryan's Work Plan dated <br />April 7, 2000, and <br />• Prepare a letter report summarizing the results of the additional assessment <br />SCHEDULE <br />SECOR is prepared to initiate fieldwork within 1 to 2 weeks following approval of this <br />addendum to the work plan and the issuance of necessary permits and the acquisition of <br />offsite access A report documenting the findings of the additional site assessment is <br />anticipated to be submitted approximately 4 weeks after the completion of the <br />fieldwork <br />If there are any questions regarding the contents of this addendum to work plan, please <br />call us at (916) 364-1880 <br />Sincerely, <br />SECOR International Incorporated <br />or off e <br />Project Geologist <br />�\� JAMES W <br />GRASTY <br />James W Grasty G * Fap &Iir,00 <br />Principal Geologist No. 6102 <br />Attachments Figure 1 - Site Location Map <br />Figure 2 - Site Plan <br />cc John Norton, Executive Office, State Water Resources Control Board (SWRCB), <br />Sacramento <br />Frances McChesney, Office of Chief Counsel, SWRCB, Sacramento <br />Alan Patton, SWRCB, Sacramento <br />Wennilyn Fua, SWRCB, UST Cleanup Fund, Sacramento <br />7G007-051-0119-5775wpaddendum doc <br />