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Environmental Assessment Report <br /> San Joaquin Catholic Cemeterv, 1Cemetery Lane and Hardtng Way,Stockton,CA June 28 1995 <br /> 1 6 INTRODUCTION <br /> This report is submitted by Groundwater Technology, Inc to summanze the methods and results of <br /> environmental assessment work conducted on April 18-20 and May 9, 1995, at the San Joaquin <br /> Catholic Cemetery located at Harding Way and Cemetery Lane, Stockton, California (Figure 1) All <br /> work was conducted in accordance with Groundwater Technology's Work Plan for Well Installation and <br /> Testing,dated January 13, 1995, and approved by the San Joaquin Public Health Services, <br /> Environmental Health Division (EHD) This work included conducting a background review of the site <br /> and immediate vicinity, obtaining necessary permits, developing a health and safety plan for field <br /> activittes,drilling and sampling four soil borings, installing six soil vapor extraction wells (two nested <br /> wells in two bonngs, and one well in each of the other two bonngs),and preparation of this report <br /> 20 ADDITIONAL ASSESSMENT WORK <br /> 21 Background Review/Permitting/Site-Specific Health and Safety Plan <br /> Groundwater Technology conducted a technical review of all relevant information available prior to <br /> proceeding with site assessment work A dnlling/mondonng well installation permit was obtained from <br /> the San Joaquin County EHD A copy of the permit is included in Appendix A <br /> • Following a complete review of site conditions, Groundwater Technology prepared a site-specific <br /> Health and Safety Plan as required by the Occupational Safety and Health Administration (OSHA) <br /> Standard "Hazardous Waste Operations and Emergency Response"guidelines (29 CFR 1910 120) <br /> The document was reviewed and signed by all Groundwater Technology personnel and subcontractors <br /> prior to commencement of work at the site <br /> 22 Soil Borings <br /> On April 18, 19 and 20, 1995, Groundwater Technology supervised the drilling of sod borings VW-1, <br /> VW-2,VW-3 and VW-4 utilizing a truck-mounted drill ng Bonngs VW-1 and VW-2 were drilled to a <br /> depth of 71 5 feet below ground surface (BGS) utilizing 10-inch outside-diameter(O D) hollow-stem <br /> augers, and bonngs VW-3 and VW-4 to a depth of 31 5 feet BGS utilizing 8-inch 0 D hollow-stem <br /> augers All drilling equipment was steam cleaned prior to drilling each bonng, and sampling equipment <br /> was washed in an Alconox(detergent) solution and rinsed with water between sampling intervals All <br /> sod generated from the bonng was placed on plastic sheeting and temporarily stored on site <br /> 23 Soil Sampling <br /> Soil samples were collected from boreholes VW-1,VW-2, VW-3 and VW-4 at 5-foot intervals during <br /> drilling, beginning at approximately 5 5 feet BGS Samples were collected using a 2 5-inch O D <br /> SJCCEAR rprlMiac 171 <br /> ❑� �► GROIJNDWATIN <br /> ��� TECHN%DGY <br />