Laserfiche WebLink
excavation side walls and were analyzed for BTEX and TPHG by Applied Analytical (DHS <br /> Cert #1211) utilizing EPA methods 8020 and 8015, respectively Analytical results are <br /> summarized on Table 2 Confirmation soil sample locations are shown on Figure 2 Laboratory <br /> ' data sheets and Cham-of-Custody are included as Appendix II <br /> After removal of all contaminated soils possible, the tank pit was backfilled with clean pea <br /> gravel to five feet below grade and subsequently backfilled to grade with clean soils <br /> Excavated soils were stockpiled on and covered with 6 ml plastic sheeting Contaminated soil <br /> is being aerated on-site under permit from the San Joaquin County Air Pollution Control District <br /> (Air Board) The location of the soil stockpile and aeration area is shown on Figure 2 <br /> IComposite samples were collected (Table 2, Appendix II) from the excavated material as <br /> required by the Air Board for processing of the aeration permit Successful treatment will be <br /> verified by sampling in accordance with SJCPHS regulations Field activities performed during <br /> the excavation at the site are discussed in detail in RESNA Industries (RESNA) Problem <br /> Assessment Report, dated May 30, 1991 <br /> 2.4 BACKGROUND TECHNICAL DATA <br /> 2.1 Name and address of contact person: <br /> Contact Person Mr Rod Nelson <br /> Laidlaw Corporation <br /> 1444 Tillie Lewis Drive <br /> Stockton, CA 95206 <br /> 2.2 Estimates of liquid quantity and composition leaked: <br /> No estimate of the quantity of liquid contaminant leaked can be determined from existing <br /> information Based on analytical results, the soil contamination appears to be derived from <br /> xylene solvents The xylene tank was believed to have been emptied at the time it's use was <br /> discontinued <br /> LCR492 TX 2 <br />