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Ms. Kasey Foley <br /> S E C O R - ---- - - <br /> January 30, 2003 <br /> Page 2 <br /> Soil Sampling <br /> Soil samples will be collected beneath the dispensers and product piping at the direction of the SJCEHD <br /> inspector. Soil samples will be collected by a SECOR representative using a shovel, hand auger, impact sampler <br /> and/or via Geoprobe rig. Soil samples will be immediately sealed in clean 2-inch by 6-inch brass sleeves using <br /> Teflon sheets and plastic end caps. Each sleeve will be filled completely with soil to minimize headspace, <br /> labeled and then placed in a cooler on ice for transport to Kiff Analytical, Inc., a State-certified laboratory. Chain- <br /> of-custody procedures will be followed at all times. <br /> In the event that other means of sample collection are not feasible, a Geoprobe rig will be used to collect soil <br /> samples underlying the dispensers. A truck-mounted direct-push rig utilizing a 2-inch diameter by 10-inch long <br /> sample barrel containing a 1.75-inch diameter brass sleeve will be used to collect soil samples. Each soil boring <br /> will have a 6-inch long section removed for laboratory analysis. Soil samples will be sealed using Teflon® sheets <br /> and plastic end caps. The depth of the boring will be determined by the SJCEHD representative during soil <br /> collection activities. <br /> During soil sampling activities, SECOR will monitor air space with olfactory observations and by monitoring with a <br /> photoionization detector (PID). All soil sampling equipment will be cleaned with a non-phosphate detergent <br /> solution and rinsed to reduce the possibility of cross-contamination between sample locations. <br /> Laboratory Analyses <br /> Soil samples designated for chemical analysis will be delivered under chain-of-custody to Kiff Analytical, Inc., a <br /> California state-certified laboratory located in Davis, California. The samples will be analyzed for total petroleum <br /> hydrocarbons characterized as gasoline (TPHg), benzene, toluene, ethylbenzene, total xylenes (BTEX), methyl-t- <br /> butyl ether (MTBE), ethyl tertiary butyl ether (ETBE), di-isopropyl ether (DIPE), tertiary amyl methyl ether (TAME), <br /> and tertiary butanol (TBA) by Environmental Protection Agency(EPA) Method 8260B. <br /> Waste Management <br /> Any soil waste generated during line upgrade and sump installation activities will be placed on and covered with <br /> plastic sheeting (visqueen). Four soil samples will be collected from the stockpile in brass sleeves using Teflon <br /> sheets and plastic end caps. These soil samples will be labeled and placed in a cooler on ice for transport to Kiff <br /> Analytical Inc. The laboratory will combine the four soil samples into one composite sample to analyze for <br /> concentrations of: TPHg, BTEX, and MTBE by EPA Method 8260B and total lead by EPA Method 200.8. Chain- <br /> of-custody procedures will be followed at all times. <br /> Upon analysis of stockpile samples, Tim A. Manley Trucking will transport the hydrocarbon-impacted soil to a <br /> state certified landfill. <br /> Report Preparation <br /> A report of the soil sample activities and results will be prepared and submitted to SJCEHD. The report will be <br /> reviewed and signed by a Registered Geologist. <br /> If you have any questions regarding this work plan, please contact our office at your convenience. <br /> SECOR International Incorporated <br /> W <br /> Jaff Auchterlonie hn . Bower, R.G. <br /> Senior Geologist Principal Geologist <br /> Enclosure: <br /> cc: 7-Eleven c/o <br /> Mr. John Wainwright, SECOR <br /> Work Plan For Soil Compliance.doc SECOR International Incorporated <br />