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1 � <br /> S ECOR <br /> Ms. Kasey Foley <br /> April 14, 2003 <br /> Page 2 <br /> will be analyzed for total petroleum hydrocarbons characterized as gasoline (TPHg), benzene, <br /> toluene, ethylbenzene, total xylenes (BTEX), methyl-t-butyl ether (MTBE), ethyl tertiary butyl ether <br /> (ETBE), di-isopropyl ether (DIPE), tertiary amyl methyl ether (TAME), tertiary butanol (TBA), and <br /> ethanol by Environmental Protection Agency(EPA) Method 82608. <br /> Management of Excavated Soil, Limited Over-Excavation,and Aeration <br /> If soils impacted with hydrocarbons are encountered, limited over-excavation may be performed. <br /> Over-excavation, if performed, will be limited to approximately 50 cubic yards of soil. The area of <br /> possible over-excavation is shown as a dotted line on Figure 2. Over-excavation will be limited to <br /> soils above current groundwater levels. <br /> Any soil waste generated during vent line replacement activities will be placed on and covered with <br /> plastic sheeting (visqueen). Four soil samples will be collected from the stockpile in brass sleeves <br /> using Teflon®sheets and plastic end caps. These soil samples will be labeled and placed in a cooler <br /> on ice for transport to Sequoia Analytical Inc. The laboratory will combine the four soil samples into <br /> one composite sample to analyze for concentrations of: TPHg, BTEX, and MTBE by EPA Method <br /> 8260B and total lead by EPA Method 200.8. Chain-of-custody procedures will be followed at all <br /> times. <br /> Upon analysis of stockpile samples, a ConocoPhillips waste hauler will transport the hydrocarbon- <br /> impacted soil to a state certified landfill. <br /> Report Preparation <br /> A report of the soil sample activities and results will be prepared and submitted to SJCEHD. The <br /> report will be reviewed and signed by a Registered Geologist or Engineer. <br /> Schedule <br /> ConocoPhillips is currently schedule to initiate vent line replacement activities in approximately two <br /> weeks. A report will be issued documenting soil sampling activities approximately 4 weeks following <br /> completion of work. <br /> If you have any questions regarding this work plan, please contact our office at your convenience. <br /> SECOR International Incorporated <br /> 19 )FESSIONq� <br /> 41(40 4NK�s Fye, <br /> Clinton Harms Rusty Benkosky E. 47C 058399 <br /> Project Scientist Senior Enginee N0. <br /> � E,cp.IL <br /> cc: Mr. Liz Sewell, ConocoPhillips OFC��F�Q <br /> Mr. David Scarlet, ConocoPhillips <br /> Mr. Scott Hooton, BP <br /> ConocoPhillips/Tosco Marketing/work plans/Work Plan For Soil Compliance.doc <br />