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.. Excavation and Sampling Report <br /> STRONG PROPERTY <br /> 5157 West Business Loop 205,Tracy, California <br /> 1.0. INTRODUCTION <br /> At the request of Messrs. Robert and Mike Strong,Advanced GeoEnvironmental, Inc (AGE) has <br /> prepared this report documenting monitoring-well destruction,excavation of hydrocarbon-impacted <br /> soil from former gasoline underground storage tank locations,and reinstallation of monitoring-wells <br /> for 5157 West Business Loop 205, Tracy, California (Figure 1). The report has been prepared as <br /> required by the San Joaquin County Environmental Health Department (EHD) by letter to <br /> Mr. Robert Strong, dated 13 November 2006. <br /> This report was prepared in accordance with the California Regional Water Quality Control Board- <br /> `� Central Valley Region (CVRWQCB)'s recommendations and guidelines for the investigation of <br /> UST sites. Site background information is provided in Appendix A. <br /> 2.0. PROCEDURES <br /> Monitoring wells MW-I and MW-2 were destroyed on 20 January 2006 as part of excavation <br /> activities to remove hydrocarbon-impacted soil related to an unauthorized release of petroleum <br /> i, hydrocarbons from former USTs at the site. Excavation of the former gasoline UST area was <br /> conducted between 30 May and 01 June 2006, and monitoring wells MW-1 and MW-2 were <br /> reinstalled on 26 September 2006. The work was performed in accordance with the AGE-prepared <br /> +r Soil and Ground Water Remediation Work Plan and Soil and Ground Water Remediation Work Plan <br /> Addendum, dated 08 September 2005 and 07 November 2005, respectively, and approved by EHD <br /> on 19 December 2005. <br /> V <br /> 2.1. MONITORING WELL DESTRUCTION <br /> On 20 January 2006, in preparation for excavation of petroleum hydrocarbon-impacted soil at the <br /> site, monitoring wells MW-1 and MW-2 were destroyed by over-drilling the wells to 30 feet below <br /> `r surface grade(bsg). Portland cement was used to fill the boring to surface grade. The borings were <br /> over-drilled by Cascade Drilling, Inc. utilizing a CME-75 limited access drill rig (LAR) equipped <br /> with 8.25-inch hollow stem augers. <br /> V <br /> 2.2. EXCAVATION OF HYDROCARBON-IMPACTED SOIL <br /> Petroleum hydrocarbon-impacted soil was excavated at the site by Valued Engineering of Stockton, <br /> California,utilizing an excavator. Soil was excavated to approximate depths between 14 and 16 feet <br /> bsg in the former gasoline UST area. <br /> ■.. Advanced GeoEnvironmental,Inc. <br />