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1. 1 0 INTRODUCTION <br /> On behalf of the San Joaquin Catholic Cemetery, Ramage Environmental has prepared this <br /> Groundwater Monitoring Report for the Second Quarter of 2001 for submittal to the San Joaquin <br /> County Public Health Services Environmental Health Division (PHSIEHD) and the Central Valley <br /> Regional Water Quality Control Board (RWQCB) <br /> ' 1 1 Site Description <br /> 1 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 budding (Figure 2) <br /> 12 Previous Work Summary <br /> On November 17 1989, two underground gasoline storage tanks UST and associated <br /> g 9 9 (UST) <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 sod 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 in 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 /> P 9 <br /> and MW-7) to re-establish a groundwater table monitoring and sampling capability at the site <br /> On May 20, 1998, Ramage Environmental published a Problem Assessment Report and <br /> ' Corrective Action Plan for the site Sod vapor extraction and air spargmg 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 sod 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 />