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:.e <br /> r <br /> EVAX Project 2260-03 6 May 1991 <br /> INTRODUCTION <br /> EVAX Technologies, Inc. (EVAX) was retained by Ultramar Inc. (Ultramar) <br /> to install and operate a vapor extraction system at Beacon Service <br /> Station 695. The site is located at 900 South Cherokee Lane in lodi, San <br /> _ Joaquin County, California. The site has a station building and complex <br /> of 4 underground storage tanks (USTs), and fuel dispensing islands (refer <br /> - to the attached Site Plan), <br /> The system design called for the refurbishing of existing monitoring <br /> wells into vapor extraction wells, and installation of 2 new vapor <br /> extraction wells. The new wells, designated MW-25 and VW-26, were <br /> installed Haar the west and east sides of the station building, <br /> respectively (refer to the Site Plan). This report presents the <br /> procedures and results of the installation of MW-25 and VW-26. <br /> �. SCOPE OF WORK <br /> -• This following activities are discussed in`this report: <br /> 1. drilling and sampling of 2 soil borings; <br /> 2. construction of vapor extraction/groundwater well MW-25 <br /> f - and vapor extraction well VW-26; <br /> - �- 3. sampling cf groundwater from MW-25; and <br /> 4. laboratory analyses or soil and groundwater samples for <br /> �- hydrocarbon products. <br /> y INVESTIGATION PROCEDURES f <br /> Regulatory Approval <br /> EVAX submitted a workplan to the Environmental Health Division, San <br /> Joaquin County Public Health Services (SJCPHS), Stockton, California. <br /> SjCPHS approved the workplan and issued a well permit (Appendix A). <br /> Prior to implementation of the workplan, EVAX prepared a- Site Safety <br /> Plan. The Site Safety Plan described the safety guidelines and field <br /> personnel were briefed as to the contents of the plan. EVAX also <br /> notified Undir•ground Services Alert to locate underground public utility <br /> lines at the site. Ms. Eleanor Ratliff, Environmental Health Specialist, <br /> r <br /> ----- —SJCPHS;-witnessed-the-drilling- and-wail insfa]Tation activities. <br /> - 1 - <br />