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PROJECT QUARTERLY UPDATE REPORT <br /> 7-ELEVEN STORE NO. 20680 <br /> 9110 THORNTON ROAD <br />' STOCKTON, CALIFORNIA <br /> July 28, 1992 <br />' 1.0 INTRODUCTION <br />' This report presents a quarterly update of routine monitoring and sampling activities conducted <br /> between April 1, 1992, and June 30, 1992, by Groundwater Technology, Inc, on behalf of The <br />' Southland Corporation (Southland), at 7-Eleven Store No 20680 The site is located at 9110 <br /> Thornton Road in Stockton, California (Figure 1) As shown on the site plan (Figure 2), the store is <br /> on the northern comer of Thornton Road and Waudman Avenue In a mixed commercial and <br /> residential area <br />' 2.0 WORK SCOPE <br />' Services performed by Groundwater Technology during this reporting period included the following <br /> ■ Monitored on-site and off-site observation wells for depth to water and depth to <br />' separate-phase hydrocarbons on June 29, 1992 <br /> ■ Analyzed groundwater samples collected from seven monitoring wells, two <br />' monitoring-well dusters, and two pumping wells on June 29, 1992 <br /> ■ Sampled groundwater from domestic wells 8968, 9036, 1912, 9140, 9156, and 9172 <br /> (Ivy Motel) on April 21, May 28, and June 29, 1992 <br /> 2.1 Groundwater Monitoring <br /> The depth to water in the monitoring wells was monitored on June 29, 1992 The monitoring data <br /> are presented In Table 1 Groundwater monitoring was performed according to Groundwater <br /> Technology standard operating procedures (Appendix A) <br /> _C GROl3NDWATER <br /> _ TECHNOLOGY, INC <br />