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1 <br /> Ground Water Monitoring Report - Second and Third Quarters 2003 <br />' WATERLOO FOOD & FUEL <br /> 3032 E. Waterloo Road, Stockton, California <br />' 1.0 INTRODUCTION AND SCOPE OF WORK <br /> At the request ofMr Paul Sidhu,Advanced GeoEnvironmental,Inc (AGE)has prepared this ground <br /> water monitoring report for the site located at 3032 E Waterloo Road, Stockton, California (site) <br /> The scope of work included conducting a quarterly ground water monitoring event during the second <br />' and third quarters of 2003 and preparation of this report The location of the site is illustrated in <br /> Figure 1, locations of structures, soil borings and monitoring wells on the site are depicted in <br /> Figure 2 <br /> At the present time,there are eight monitoring well locations at the site,four locations contain single- <br /> level wells (MW-1 through MW-4), and four (MW-5 through MW-8) contain multi-level wells <br />' consisting of five perforated and screened well chambers (A through E) in a seven-chamber casing <br /> (Continuous Multichannel Tubing) Based on field and laboratory analytical data,screened intervals <br /> of the wells were set within discrete depth intervals(hydrologic units)to monitor vertical and lateral <br /> changes in hydrologic action (hydraulic gradient), contaminant concentrations and migration <br /> directions within the hydrologic units Each hydrologic unit was defined based on lithologic <br /> information provided by cone penetrometer testing, as detailed in the AGE-prepared Cone <br /> Penetrometer Testing and Monitoring Well Installation Report, dated 11 February 2002 As-built <br /> monitoring well construction details are summarized in Appendix A <br />' Six hydrologic units (HUs) were defined HU1 (water table to 62 feet below surface grade [bsg]), <br /> within the screened interval of wells MW-1 through MW-4 and A-wells MW-5A through MW-8A, <br />' HU2 (62 to 70 feet bsg), within the screened interval of wells MW-1 through MW-4 and A-wells <br /> MW-5A through MW-8A,HU3 (70 to 90 feet bsg),within the screened interval ofB-wells MW-5B <br /> through MW-8B,HU4(90 to 100 feet bsg),within the screened interval of B-wells MW-5B through <br />' MW-8B, HU5 (100 to 155 feet bsg),withm the screened interval of C- and D-wells MW-5C and <br /> MW-5D through MW-8C and MW-8D, and HU6(175 to 185 feet bsg),within the screened interval <br /> of E-wells MW-5E through MW-8E HU6 was designated as the deepest hydrologic unit monitored <br /> Additional site history and findings from previous investigations and monitoring events at the site are <br /> detailed in AGE's report titled Preliminary Investigation and Evaluation Report, dated <br /> 14 December 2000 and Cone Penetrometer Testing and Monitoring Well Installation Report dated <br /> 11 February 2002 <br /> Ground water remediation was initiated during May 2004 in accordance with procedures outlined in <br /> Interim Remediation and Site Assessment Work Plan, date 25 January 2001 Additional reporting for <br /> the progress of the ground water extraction, four ground water extraction points, is forthcoming <br /> • <br />