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V Z1 INC • APPENDIX lil SOIL PROTOCOL Sol! Sampling with Drill Rig A two inch diameter split spoon sampler flitted with three six inch brass sample tubes will be used to collect samples In each borehole, samples will be collected at five foot intervals After drilling to each sampling depth, the sampling apparatus will be inserted into the hollow auger and driven into the undisturbed sod beneath the borehole Upon recovery, the lower two sample tubes, designated A and B, will be sealed by i covering with aluminum foil, capping with plastic and sealing with cloth tape This sample recovery method minimizes head space in the sample tubes The samples will then be stored on ice pending delivery to a certified laboratory for chemical analysis and • accompanied by appropriate Chain of Custody documents The material in the third tube and in the sample "shoe" will be examined and described, then discarded Sample descriptions will include lithology, moisture content, fossil content, and odor Samples will also be checked with an Organic Vapor Meter (OVM) Lithologic logs for each borehole will be compiled utilizing the sample descriptions The sampler will be washed with a non-phosphate cleaner and double rinsed with water after each use Auger flights will be steam cleaned after drilling each borehole This will assure that contamination is not transferred to other boreholes The cleaning will take place on established cleaning sites and the effluent will be contained Uncontaminated boreholes as determined b OVM filed tests will be backfilled with the U ( y ) same material or cuttings extracted from the hole during drilling after placing five feet of bentonite in the bottom of the hole Boreholes found to have contaminated soil will be backfilled with a cement and sand slurry containing no more than five percent bentonite Appendix III Page 1