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Page 3 <br /> B. Sample analysis detection limits, per Tri- <br /> Regional Recommendations dated August 10, 1990, <br /> will be: <br /> 1) TPH-D- 1. 0 mg/kg; EPA 5030/3550 <br /> 5 . Upon approval from San Joaquin. Co. EHD, the <br /> ,excavation will be backfilled with uncontaminated material . <br /> ;Backfill will be either soil compacted to 90 percent <br /> relative density or crushed rock, capped with soil. <br /> Attached as Exhibit C is Jim Thorpe Oi.1 Inc. ' s approved <br /> safety plan which is applicable to the' above operations. It <br /> is not anticipated that any dangerous levels of substances <br /> Will be encounted during the work, and`- no personnel will be <br /> allowed to enter the excavation. <br /> Any questions regarding this workplan may be directed <br /> to W. Fred Cearfoss at 209-334-0790. <br /> E <br />: r <br /> 1� r <br />