ARCHIVED REPORTS XR0012561 - Laserfiche WebLink

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. . F� _10 e 'r-".y s�y'..�_'_•:x x'�,�.� -am=ar•.-u;'�; '`zi �'ms:.ws,'Y^=o^3'-��, y�`.'$�„;,.w�,r;' .�. a.,.. y. L4 i April 7, 1992 ARCO Station. No. 2.168, Stockton, California o Collect samples of the drill cuttings and submit the samples to an ARCO. approved laboratory for analysis of TPHg, BTEX, and total lead using the above methods. The tentative location for the stockpiled soil is shown on Drill cuttings from the proposed onsite borings will be placed o.1 plastic and covered with plastic. Results of these analyses will be used to evaluate disposal options for the soil, We will apprise ARCO of these options. o Conduct a vapor-extraction test as described in our May I7, 1991,Work Plan. o Prepare a Preliminary Investigations and Evaluation Report summarizing r findings, conclusions, and recommendations based on previous and proposed work. If hydrocarbons in soil or ground water are not delineated during this scope of work,the PAR will be postponed until hydrocarbons are delineated. The work will be performed in accordance with the Tri-Regional Board Staff Re,;ommendatlons for Preliminary Evaluation and Investigation of Underground Tank Sites (California Regional Water Quality Control Board, Central Valley Region, August 1990); Appendix A to that document (August 1991); and the Leaking Underground Fuel Tank Manual (California Leaking Underground Fuel Tank Task Force, 1989). The Site Mitigation Acknowledgement. /Request For Services Form was included in our May 17, 1991, Work Plan. We recommend that a copy of this work plan along with the drilling permit be forwarded to Mr. Michael Infurna of the San Joaquin Public Health Services located at 445 North San Joaquin, Stockton, CA 95202. Mr.Jim Manghan of the California Regional Water Quality Control Board located at 34+3 Routier Road, Suite A, Sacramento 95827-3098. 310094W 4 lF 1t 1 1.