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1 <br /> 10 INTRODUCTION <br /> • <br />' On behalf of the San Joaquin Catholic Cemetery, Ramage Environmental has prepared this <br /> Groundwater Monitoring Report for the Fourth Quarter of 2000 The scope of work was <br /> reviewed and supervised by Mr Harlin Knoll of the San Joaquin County Public Health Services <br /> Environmental Health Division (PHSIEHD) <br />' 1.1 Site Description <br />' The subject property is an operating cemetery located on the northeast corner of Harding Way <br /> and Cemetery Lane in the city of Stockton (San Joaquin County), California (Figure 1) The <br />' project site is located on the east side of the mausoleum building (Figure 2) <br /> 12 Previous Work Summary <br />' On November 17, 1989, two underground gasoline storage tanks (UST) and associated <br /> pumping equipment were removed from the site Based on evidence of impacted soil and <br /> groundwater beneath the site, a total of seven groundwater monitoring wells, two soil vapor <br /> extraction wells and two soil vapor extraction well nests have been installed <br /> Groundwater has been sampled at the site since August 1990 A dramatic rise in groundwater <br /> elevation since well installation in the early 1990s has resulted in groundwater table levels above <br /> the screened interval of the original five groundwater monitoring wells The rise to groundwater <br /> elevation also resulted in static groundwater entering the deep soil vapor extraction wells <br /> On April 28, 1998, Ramage Environmental installed two groundwater monitoring wells (MW-6 <br /> and MW-7) to re-establish a groundwater table monitoring and sampling capability at the site <br /> Currently, groundwater is sampled from MW-6, MW-7 and the two deep extraction wells <br /> ' On May 20, 1998, Ramage Environmental published a Problem Assessment Report and <br /> Corrective Action Plan for the site Soil vapor extraction and air sparging were recommended as <br /> the most efficient and practical remedial alternatives On September 8, 1998, the USTCF pre- <br /> approved the cost to construct and operate a soil vapor extraction and air sparging system at the <br /> site The San Joaquin Catholic Cemetery contracted with ENSR Consultants (ENSR) to <br /> ' complete the pre-approved scope of work <br /> 3 <br />