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Quarterly Report - Third Quarter 2004 <br /> FERNANDO'S PLACE <br /> ' 1201 South Center Street, Stockton, California <br />' 1.0 INTRODUCTION <br /> At the request of Mr Roger Huckins,Advanced GeoEnvironmental, Inc (AGE) has prepared this <br />' quarterly report for the property located at 1201 South Center Street,Stockton,California(site) The <br /> scope of work included the performance of a quarterly ground water monitoring event, submission <br /> of monitoring and analytical data to the State Water Resources Control Board's GeoTracker <br /> information management system, and preparation of this report The location of the site and <br /> surrounding area is illustrated on Figure 1, structures, former underground storage tank (UST) <br />' locations, and soil boring and monitoring well locations are illustrated on Figure 2 Site background <br /> Information is provided in Appendix A <br /> Based on the results of previous cone penetrometer test(CPT) and soil boring investigations, AGE <br />' has informally identified five hydrogeologic units between first encountered ground water and <br /> 199 feet below surface grade (bsg) as having significant intervals of apparently porous, coarser- <br /> grained soil separated by intervals of finer-grained,less permeable soil(Appendix A) Hydrogeologic <br /> Unit 1 (HU-1)was Identified at depths between 25 feet(first encountered ground water) and 90 feet <br /> bsg,it was subdivided into three sub-units(HU-1 Upper Zone,HU-1 Middle Zone, and HU-1 Lower <br />'. Zone)that may not have significant barriers to vertical migration of contaminations Hydrogeologic <br /> Unit 2 (HU-2) was identified at depths between 112 feet and 125 feet bsg, Hydrogeologic Unit 3 <br /> (HU-3) was identified at depths between 140 feet and 160 feet bsg, Hydrogeologic Unit 4 (HU-4) <br />' was identified at depths between 160 feet and 175 feet bsg, and Hydrogeologic Unit 5 (HU-5) was <br /> identified at depths between 190 feet and 199 feet bsg <br />' 2.0. PROCEDURES <br />' Field work was performed in accordance with guidelines issued by the Central Valley Regional <br /> Water Quality Control Board (CVRWQCB) and the San Joaquin County Environmental Health <br />' Department(EHD) for the investigation of underground storage tank(UST) sites and the sampling <br /> of ground water monitoring wells, respectively T <br />' 21 WELL MONITORING AND EVACUATION <br />' On 31 August and 01 and 02 September 2004, ground water monitoring and sampling were <br /> performed atone single-completed monitoring well location(MW-1),two clustered monitoring well <br /> locations (MW-2A/B and MW-3A/B), and six multi-chambered monitoring well locations <br />' [MW-4(A-E), MW-5(A-E), and MW-6(A-D) through MW-9(A-D)], a total of 31 wells were <br /> monitored and sampled Due to scheduling conflicts, the ground water monitoring could not be <br /> icompleted concurrently with the neighboring Are Pump and Weld site <br />' Advanced GeoEnvLronmental,Inc <br />