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S E C O R <br /> Ms. Devra Lewis <br /> January 9, 2004 <br /> Page 6 <br /> • One three-inch diameter steel pipe trending northeast to southwest was located in east half <br /> of the excavation at a depth of approximately 56 inches bgs. <br /> CONCLUSION <br /> Steel pipelines were discovered at the site in 14 locations. Three uncapped open-ended pipelines <br /> were located in excavations EX-1-A3, EX-5, and EX-5-A. Based on field observations, residual <br /> petroleum may be present in the open ended pipelines located in excavations EX-1-A3 and EX-5. <br /> The open ended pipeline located in EX-5-A and the wood capped pipelines located in EX-1-C <br /> appeared to be generally free of residual petroleum. <br /> If there are any questions, please call us at(916) 861-0400. <br /> Sincerely, <br /> SECOR International, Incorporated <br /> Thomas Y.Project Geo og st Parker �EiLEO GFOlC <br /> At GAVAN4,NRICH V; <br /> /1 Y! •/e� /4�P1� No. 7572 <br /> M. Gavan Heinrich, R.G. yp 311,u6 P <br /> Associate Geologist Op CALIf0' <br /> Attachments: Figure 1 —Site Location Map <br /> Figure 1 —Site Plan with Excavation Details <br /> cc: Mr. Tracy Sizemore, ConocoPhillips Company <br /> Mr. Derrick Vallance, ConocoPhillips Company <br /> Mr. Robert Cochran, ChevronTexaco <br /> Mr. Gregory Hardy, ChevronTexaco <br /> Mr. Bob Goodman, Law Office of Robert C. Goodman <br /> Mr. Sean Sherlock, Snell and Wilmer <br /> Mr. Jerry Lile, DTSC <br /> Mr. Kyle Rutherford, Unocal <br /> Ms. Jill Tracy, Unocal <br /> Mr. John Russo, Clayton <br /> Ms. Kitty Walker, City of Stockton <br /> Mr. Jeffrey Wong, San Joaquin County <br /> Ms. Margaret Dahlen, Earth Tech <br /> Mr. Trent Norris, Bingham McCutchen <br /> Mr. Morgan Gilhuly, Esq., Barg, Coffin, Lewis, and Trap, LLP <br /> Mr. Robert Traylor, Komex H2O Science, Inc. <br /> Mr. Rudy V. Bilawski, Nuemiller and & Beardslee <br /> Mr. William Brown, Daly& Heft <br /> Ms. Gretchen Louden, Cesar Chavez Central Library <br /> Stockton Parcel 2A Utility Search Report <br />