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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran, REHS <br /> 600 East Main Street <br /> -� PROGRAM COORDINATORS <br /> Stockton, California 95202-3029 <br /> ' Robert McClellon, REHS <br /> •' Jeff Carruesco,REHS,ROI <br /> Kasey Foley, REHS <br /> cq�iFORN;P Website: www.sjgov.org/ehd <br /> Phone: (209) 468-3420 <br /> Fax: (209) 464-0138 �i' <br /> February 3, 2010 z141I0 <br /> Port of Stockton <br /> Mr. Jeff Wingfield <br /> 2201 W. Washington St <br /> Stockton, CA 95201 <br /> Subject: UST Site #3 LOP Case #: 1282124 <br /> Port Rd 13 at G St CU F#: 013777 <br /> Stockton, CA 95201 Global ID#: T0607700817 <br /> WORKPLAN: Work Plan for Further Plume Characterization <br /> DATED: January 20, 2010 <br /> PREPARED BY: WGR Southwest, Inc. - Chris Strong, P.G. <br /> STATUS: APPROVED. <br /> ADEQUATE AND NECESSARY ELEMENTS OF' THE WORKPLAN Health & Safety <br /> Code (H&S) Section 25296.10(c)(3)1: <br /> • Install four shallow direct push soil borings to assess the lateral extent of the <br /> groundwater plume to the northeast and the southwest and install one deep push <br /> point to investigate the vertical extent of elevated dissolved petroleum <br /> hydrocarbons. <br /> • Collect groundwater grab samples from 15' bgs and 25' bgs from the shallow <br /> borings and from 45' bgs from the deeper boring.. Samples to be analyzed for <br /> petroleum constituents of concern. <br /> • Resurvey ten existing monitoring wells. <br /> • Sample MW3-8 quarterly. <br /> COMMENTS AND CONDITIONS: <br /> • The report of finding for this phase is to be in the format of an updated Site <br /> Conceptual Model and is to include soil iso-concentration maps for each <br /> constituent of concern at each depth of concern and is to be on Geotracker within <br /> 60 days from the end of the field work. <br /> • Submit a Well Permit Application Form and $434 fee immediately. <br /> REASONS FOR DISAPPROVAL OF THE WORKPLAN [H&S Section 25296.10(c)(3)1: <br /> • none. <br /> BY <br /> Michael Infurna, Sen io eg isterV Environmental Health Specialist <br /> (209) 468-3454 <br /> c: Mr. James L. Barton, CVRWQCB <br /> Mr. Mark Owens, SWRCB-CUF <br /> Mr. Chris Strong, WGR Southwest, 315 W. Pine St., Lodi, 95240 <br />