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' Ground Water Aquifer Pumping Test Report - July 2003 <br /> • CALIFORNIA FUELS CARDLOCK STATION <br />' 2402 Pacijric Avenue, Stockton, California <br />' TABLE OF CONTENTS <br /> ISECTION PAGE <br /> 1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br />' 2.0. DRILLING AND SAMPLING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2 1 GROUND WATER EXTRACTION WELL INSTALLATION PROCEDURES 2 <br />' 2 1 1 Soil Sampling and Analysis 2 <br /> 2 12 Sample Logging 3 <br /> 2 1 3 Equipment Decontamination 3 <br /> I 2 14 Ground Water Extraction Well Completion 3 <br /> 22 GROUND WATER EXTRACTION WELL INSTALLATION FINDINGS 4 <br /> 2 2 1 Stratigraphy 4 <br /> I 2 2 2 FIELD EVIDENCE OF HYDROCARBON-IMPACTED SOIL AND <br /> GROUND WATER 4 <br /> 223 LABORATORY RESULTS OF SOIL SAMPLES 4 <br /> 3.0. GROUND WATER AQUIFER PUMPING TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> 3 1 VARIABLE RATE 'STEP' GROUND WATER PUMPING TEST 6 <br /> 32 CONSTANT RATE GROUND WATER PUMPING TEST 7 <br /> 33 EXTRACTED WATER SAMPLING PROCEDURES 7 <br /> 3 3 1 Extracted Water Analytical Results 8 <br /> 34 PURGED GROUND WATER DISPOSAL 8 <br /> I4.0. SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> 5.0. CONCLUSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 <br /> 6.0. RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 <br /> 7.0. LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 <br /> • Advanced GeoEnvironmental,Inc <br /> I <br />