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1.0 INTRODUCTION <br /> On behalf of the San Joaquin Catholic Cemetery, Ramage Environmental has prepared this <br /> Problem Assessment Report (PAR) and Corrective Action Plan (CAP) for regulatory review and <br /> approval Upon regulatory approval of this document, it will be used as part of a bid solicitation <br /> package for the implementation of active remediation at the site <br /> On February 25, 1998, the State Water Resources Control Board Underground Storage Tank <br /> Cleanup Fund (USTCF) pre-approved the costs to install two additional groundwater monitoring <br /> wells, conduct quarterly groundwater monitoring and sampling, prepare this Problem <br /> Assessment Report and Corrective Action Plan and complete the design and permitting of the <br /> selected remedial option A copy of the USTCF pre-approval letter is included in Appendix A <br /> On March 11, 1998, Ramage Environmental submitted a Work Plan, Monitonng Well Installation <br /> and Sampling to the San Joaquin County Public Health Services Environmental Health Division <br /> (PHS/EHD) The work plan was approved on March 20, 1998 by Mr Harlin Knoll, Sr R E H S <br /> with PHSIEHD (Appendix A) <br /> 1.1 Site Description <br /> The subject roe is an operating cemetery located on the northeast corner of Harding Way f <br /> 1 property rhl p 9 <br /> and Cemetery Lane in the city of Stockton (San Joaquin County), California (Figure 1) The <br /> underground storage tank (UST) site is a former equipment fueling area located on the east-side <br /> of the mausoleum budding (Figure 2) <br /> The site is located on level terrain at approximately 16 feet above mean sea level Three active <br /> irrigation wells exist on the cemetery grounds These three wells supply all of the non-drinking <br /> water for the facility, including sinks and restrooms One of the irrigation wells (Well #2) is <br /> located approximately 50 feet upgradient (south) of the former underground storage tanks <br /> (Figure 2) <br /> 1.2 Previous Work <br /> On November 17, 1989, one 500-gallon gasoline UST and one 1,000-gallon gasoline UST were <br /> removed from the site in response to a faded tank tightness test A hole approximately 5-inches <br /> in diameter and numerous pin-sized holes were observed in the tank bottom Three sod <br /> samples collected from beneath the former USTs contained up to 4,200 milligrams per kilogram <br /> (mg/kg) of Total Petroleum Hydrocarbons (TPH)-as-Gasoline and 21 mg/kg of benzene <br /> �, 3 <br />