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Interim Remediation Work Plan S OLYMPIAN MBP -.Jimeo truck-Plaza' ' 22502 South Highway 99, Ripon, California :- 1.0. INTRODUCTION In accordance with the request of Mr. Tim Gipson of Olympian Oil,Advanced GeoEnvironmental, Inc. (AGE) has prepared the enclosed Interim Remediation Work Plan for the property located at 22502 South Highway 99 in Ripon, California. Removal of three underground storage tanks (USTs), 10 dispenser.islands and the associated product piping is planned. The proposed scope of work includes the collection of soil samples for laboratory analysis and the excavation of a limited volume of hydrocarbon-impacted soil from the underground storage tank cluster area and product piping area if significant hydrocarbon-impacted soil is encountered during removal of the UST system. Figure 1 -Location Map, shows the general location of the site. Figure 2 -Site Plan, shows details of the site and location of the UST facility. This Work Plan is prepared in accordance with San Joaquin County Public Health Services Environmental Health Division (PHS-EHD) and Central;Valley Regional Water Quality Control Board (CVRWQCB) guidelines for,the investigation of UST sites. , 2.0. SCOPE OF WORK 2.1. EXCAVATION OF HYDROCARBON-IMPACTED SOIL Removal of three underground storage'tanks (USTs), ten dispenser islands and the associated product piping is scheduled. If hydrocarbon impacted soil is encountered during the UST system removal an area of Impacted soil, not to exceed a volume of 200 cubic yards, w ill be excavated, Excavation will be performed using a backhoe or excavator. Excavated soil will be monitored using ' a photo-ionization detector(PID). If impacted soil is snore extensive that anticipated,excavation will be terminated and a site assessment will be recommended. . r Soil samples will be,collected from the floor and sidewalls of the excavation. Ground water is currently at a depth of approximately 20 feet below surface grade (bsg) and is not anticipated to be encountered during excavation. Samples will be collected from the backhoe or excavator bucket in precleaned 2- by 3-inch brass sleeves. Upon retrieval; the ends of the brass sleeve• will be immediately cov'e'red With Teflon sheets, capped and sealed with tape. Each sample sleeve will be, labeled and logged on a chain-of-custody form.The samples will be placed in a chilled container and transported to a•state-certified Iaboratory'for analysis. Advanced GcoEnvironmenial,Inc.