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Stantec
<br /> Addendum Work Plan for Human Health Risk Assessment
<br /> Former Tosco Bulk Terminal#10013
<br /> February 14,2011
<br /> LIMITATIONS
<br /> This addendum work plan has been prepared for the exclusive use of ConocoPhillips Company and
<br /> its representatives as it pertains to the property located at 3505 Navy Drive, Stockton, California.
<br /> Evaluations of the geologic conditions at the site for the purposes of this investigation are inherently
<br /> limited due to the number of observation points. There are no representations, warranties, or
<br /> guarantees that the points selected for sampling are representative of the entire site. Data from this
<br /> report reflects the conditions at specific locations at a'specific point in time. No other interpretation,
<br /> representations,warranties, guarantees, express or implied, are included or intended in the report
<br /> findings. Stantec assumes no responsibility for exploratory borings or data provided or reported by
<br /> other consultants or contractors.
<br /> Should you have any questions or comments regarding the contents of this document, please feel
<br /> free to contact Sean Coyle at 916-861-0400 ext. 222.
<br /> Sincerely,
<br /> Stantec Consulting Corporation /
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<br /> Sean Coyle Ed Simonis, P.G.
<br /> Associate Scientist Senior Geologist •; I
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<br /> Figure 1 —Site Location Map
<br /> Figure 2—Site Plan With Proposed Soil Gas Sampling Locations
<br /> Attachment 1 — RWQCB-CVR Letter Dated January 18, 2011
<br /> Attachment 2 -CalEPA— Department of Toxic Substances Control (DTSC) Advisory
<br /> Active Soil Gas Investigations dated January 28, 2003
<br /> Attachment 3—Facts Sheet for ProUCL 4.0
<br /> cc:
<br /> Ms. Shelby Lathrop, ConocoPhillips, (via Livelink)
<br /> Mr. Harlin Knoll, San Joaquin County Environmental Health Department, Stockton
<br /> Ms. Rita Koehnen, Port of Stockton, PO Box 2089, Stockton, CA 95201-2089
<br /> Mr. Mark O'Brien, Port of Stockton/ERSC, PO Box 1209, Alamo, CA 94507
<br /> Mr. Joe Aldridge, NuStar Energy L.P., PO Box 781609, San Antonio, TX 78278
<br /> Mr. Dan Thomas, NuStar Energy L.P., 2941 Navy Drive, Stockton, CA 95206
<br /> Mr. Carol Campagna, Shell OPUS, 20945 S. Wilmington, Carson, CA. 90810
<br /> Mr. Stephen McAdams, Eisenmann, 314 Tamarron Way, San Ramon, CA 94582
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