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Additional Site Assessment Work Plan Shockey and Sons Trucking 854 Milgeo Avenue,Ripon, California 1.0. INTRODUCTION At the request of Mr. Walter Shockey,Advanced GeoEnvironmental, Inc. (AGE)has prepared the enclosed Additional Site Assessment Work Plan for the property at 850 Milgeo Avenue, Ripon, California(the site).The proposed work includes 1)advance four off-site pilot borings to collect soil samples and install ground water monitoring wells and advance four(three off-site) soil borings to collect soil and grab ground water samples to further define the lateral and vertical extent of petroleum-impacted soil and ground water; and 2) properly destroyed badly damaged monitoring well MW-5. The location of the site is illustrated on Figure 1. A plan of the site is illustrated on Figure 2.Site background information including historical analytical soil and ground water sampling results are included as Appendix A. This work plan was prepared in accordance with Appendix A to Tri-Regional Recommendations - Reporting, dated 16 April 2004, prepared by the Central Valley Regional Water Quality Control Board (CVRWQCB) for the investigation of underground storage tank (UST) sites. 2.0. SCOPE OF WORK The scope of the work includes 1)advancement of four off-site pilot borings to collect soil samples and install ground water monitoring wells; 2) advancement of four (three offsite) soil borings to collect soil and grab ground water samples, and 3) properly destruction of badly damaged monitoring well MW-5. The scope of work will consist of the following tasks: • Permitting and pre-field work activities; • Advancement of four pilot soil borings and soil sampling; • Ground water monitoring well installation, well development and well survey; • Advancement of three soil borings for the collection of soil and grab ground water samples; • Proper destruction of well MW-5; and • Preparation of a report. 2.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES Prior to the commencement of work, permits (boring and encroachment) and applicable access agreements will be obtained from the San Joaquin County Environmental Health Department(ERD), the City of Ripon, California Department of Transportation (CALTRANS) and private property Advanced GeoEnvi ron mental,Inc.