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oil and Groundwater Tnvestigatiori Work Plan Raymond Investment Corporation February 19,2004 Page 3 from the boringsr3' Y for laboratory analyses based on field observations and PID measurements. It is anticipated that a maximum of three soil samples will be collected from each boring for laboratory analyses. The soil cuttings will be placed in a 55-gallon drum, scaled, labeled, and left on-site to await disposal pending results of the laboratory analyses. Each soil sample collected for laboratory analyses will be cut from the liners. The liners will be sealed'at the ends with Teflon® sheeting, capped, and labeled. The samples will be placed in a cooler chilled with t Blue Ice(D and delivered under chain-of-custody procedures to a California certified laboratory for analyses. Groundwater samples will be collected using a push-type groundwater sampler. The sampler has a sealed, retrievable stainless steel screen. The sampler will be pushed in a closed position to the desired sampling interval. The sampler push rod will then be retracted exposing the inlet screen. Groundwater will flow hydrostatically from the formation into the inlet screen. A groundwater sample will be retrieved from within the screen with a length of clean, 3/8-inch diameter polytygon tubing equipped with a check valve at the �+ bottom. The tubing will be moved up and down by hand to draw groundwater up inside the tubing. The groundwater samples will be discharged directly from the tubing into laboratory supplied sample containers. The sample containers will be sealed, labeled, placed in a cooler chilled with Blue Ice®, and delivered under chain-of-custody procedures to a California certified laboratory for analyses. 3.3 LABORATORY ANALYSES The soil and groundwater samples collected from the borings will be analyzed for TPH-G, TEPH-D, TEPH-MO, and total extractable petroleum hydrocarbons quantified as kerosene (TEPH-K) by EPA Method 8015B, and for BTEX and gasoline oxygenates/additives by EPA Method 8260B. The gasoline additives/oxygenates include tertiary-butanol (TBA), methyl tertiary-butyl ether (MTBE), di-isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE), tertiary-amyl' methyl ether (TAME), and 1,2- dichlor6ethane (1,2-DCA). The soil and groundwater samples will also be analyzed for lead by EPA Method 7420. 4*t rk -r-rLe. ('1'cW -rhreshalA L it Con CGrr�I'Cc�id�v� 4.0 REPORTING. r' r�scl Jt l c�( Pb) iS SOmj j)C� 1 -��i�,� �raae�'4A*Z"pe �.ly Zt �h' STIL,e - 56Jv,b lc. 7-h res)7 I'd I— mid drrrG •re rr loy Condor will prepare a report detailing the findings of the investigation to be submitted to the S.ICEHD. The report will include a discussion of the field and laboratory procedures used to conduct the investigation, a discussion and presentation of the analytical results, and.recommendations. i N46i �', CONDOR