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yeolcgf OtT"hfdcstxc. Page 5 <br /> City of Escalon(Escalon) <br /> Project No.: 1114.2 <br /> September 29,2003 <br /> 3. Geologic Cross Sections <br /> • Figure 8: Lines of Section — Site map without buildings .and structures showing the <br /> cross sections A-A'-and B-B' in plan view <br /> • Figure 9: A-A' Cross Section— Shows the lithology of the subsurface, and location of <br /> two_USTs, in a southeast to northwest cross section <br /> • Figure 10:B-B' Cross Section— Shows the lithology of the subsurface in a southwest to <br /> northeast cross section <br /> -4. Stockpiled Soil <br /> No stockpiled soil relating to the former underground storage tanks is currently stored on <br /> this property. <br /> 5. Monitoring Wells <br /> No monitoring wells are associated with or installed at the EZ Gas Mini-Mart site. <br /> L 6. Groundwater Gradient Tabulated Data <br /> No groundwater gradient was calculated for this site due to the absence of groundwater <br /> monitoring wells. Relative groundwater elevation and bearing can be assumed by review of <br /> rgroundwater data collected from a neighboring property. Data collected from 1305 Escalon <br /> �1 Avenue, Escalon indicates groundwater predominantly flows in a west. northwesterly <br /> direction with an average slope of 0.0017 ft/ft. The average groundwater elevation, <br /> Lassociated with the 1305 Escalon Avenue site, is 57.30 feet bgs. Tabulated historical <br /> groundwater information is available in GTI's: 2"`' Quarter Groundwater Monitoring Report <br /> for the Former Arco Gas Mini Mart, 1305 Escalon. Ave., Escalon, CA dated July 22, 2003 <br /> (attached in Appendix C). <br /> 7. Analytical Tabulated Data <br /> Summary analytical data tables are attached with the maps and cross sections: <br /> Table 1: Summary of Soil Analytical Data—Tank Pit Samples <br /> Table 2: Summary of Soil Analytical Data—Soil Boring Samples <br /> Table 3: Summary of Soil Analytical Data--Stockpile Samples <br /> Table 4: Summary of Soil Analytical Data—Piping Samples <br /> Table 5: Mass Estimate Calculations for MtBE <br /> Table 6: Mass Estimate Calculations for Diesel <br /> Detection limits are indicated in the summary tables. <br /> y <br />