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m _ PRE-TAMC REPIAcu4ENT Site Assessment Work Plan 4?0 WEST KETTLEMAN LANE,LODI, CA. Aegis Project No. 39°073 Page 11 The total volume of cuttings removed from the soil borings is expected to be between two and three cubic yards. Material removed from the borings will be placed in Department of Transportation approved barrels. The barrels will be sealed and labeled with the boring number and depth intervals from which the material originated, the date and Aegis job number. A drummed soil worksheet will be generated at the time of drilling. Two composite samples will be obtained from each boring to classify drummed soil. One sample will be analyzed for TPH, total lead, inorganic lead and organo lead. The remaining sample will be frozen and retained by the laboratory for further testing, if required. The barrels will be legally disposed of upon confirmation of the contents from the analytical soil sample results. All work described herein will be completed according to the health and safety procedures outlined in the site health and safety plan f included in Appendix A. A copy of the health and safety plan will be available on site during all field operations. 4.0 METHODS 4.1 Soil-sampling soil borings and soil sampling will be performed under the direction of a State of California registered 5 professional engineer or geolcgist. The soil borings will be advanced to a depth of approximately .five below grade by using a hand auger. The soil borings will be advanced, below five feet to final depth, using a truck- mounted hollow-stem auger drilling rig. To reduce the passibility of cross-contamination between boreholes, � - -. ( all downhole drilling equipment will be steamed cleaned between each boring. To reduce cross-contamination between samples, the split- barrel sampler will be washed in a soap solution and double-rinsed between each sampling event.. Soil sampling will be. done in accordance. with ASTM 1585-84: Using this = procedure, a two-inch.p.D. split-barrel sampler or a two-inch I.D. g California-type sampler is driven into the. soil by a 140-pound weight `- iallinq .3p inches. After an initial set of 6 inches, the number of blows required .to drive the sampler an additional 12 inches is known as penetration resistance, or the "N" value. The N value is used as an s .�. empirical measure of the relative density of cohesionless soils and. } the..consistency of c6hesive soils. .an recovery, a_port�or-af-the- soil-sample-will--be-placed-into-a T glass -_- jar and .sealed for later screening with a PID/OVA. Another -portion of the soil sample will be used for classification and description. That part of the soil sample. collected in a brass tube within the California=type sampler will be stored at approximately 4° C for tranGport to the laboratory. Yl rf.�. i "! .