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APPENDIX A <br /> Fuge: <br /> such as names of on-site personnel, sampling methods, date <br /> and time of sampling, the number of well volumes removed <br /> before sampling, and any preservatives added or filtration <br /> performed on samples. <br /> The samples will be refrigerated and packaged <br /> immediately for delivery to the laboratory, and will under no <br /> circumstances be opened by anyone other than laboratory <br /> personnel. Chain of Custody records will be maintained at <br /> all times. <br /> Samples will be analyzed by a laboratory specifically <br /> certified by the Valifornia Department of Health Services to <br /> perform the analysis requested. Samples will not be tested <br /> C after their sample life has been exceeded according to EPA <br /> guidelines, and will be properly disposed of after analysis. <br /> C SOIL SAMPLING <br /> All soil sampling equipment will be thoroughly steam- <br /> cleaned before sampling and between sampling to prevent <br /> cross-contamination. Relatively undisturbed soil samples <br /> will be taken at intervals of not more than five feet in <br /> r order to evaluate the subsurface materials; however, this <br /> Lsampling interval may be waived in saturated sands or gravels <br /> in which sample recovery is not passible. <br /> The soil samples will be collected using a California <br /> Modified split-spoon sampler with brass liners. The sampler <br /> will be driven by a 140 pound hammer repeatedly falling 30 <br /> r inches (ASTM Standard 1586) . <br /> LThe laboratory samples will not have head space and will <br /> be immediately sealed in their liners using aluminum fail <br /> lined plastic caps that are taped in place. The remaining <br /> sample will be removed from its liner to be used for sieve <br /> analysis, if appropriate, and to aid the on-site geologist in <br /> logging the material. <br /> L <br />