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2011 Semiannual Groundwater Monitoring and Evaluation Report <br /> Full-Scale In Situ Hexavalent Chromium Reduction Treatment Implementation <br /> Former Marley Cooling Tower Site, Stockton,California January 2012 <br /> TABLE OF CONTENTS <br /> (continued) <br /> 8.0 RECOMMENDATIONS.................................................................................................... 8-1 <br /> 9.0 ACTIVITIES PLANNED THROUGH 2012 .....................................................................9-1 <br /> 10.0 REFERENCES ................................................................................................................. 10-1 <br /> LIST OF TABLES <br /> 1 SUMMARY OF FULL-SCALE IN SITU REMEDIATION ACTIVITIES <br /> 2 GROUNDWATER MONITORING PROGRAM, 2011 ANNUAL GROUNDWATER <br /> MONITORING REPORT <br /> 3 LABORATORY ANALYTICAL METHODS AND FIELD PARAMETERS, 2011 <br /> ANNUAL GROUNDWATER MONITORING REPORT <br /> 4 FIELD PARAMETERS AND WELL DETAILS, 2011 ANNUAL GROUNDWATER <br /> MONITORING REPORT <br /> 5 LABORATORY ANALYTICAL RESULTS, 2011 ANNUAL GROUNDWATER <br /> MONITORING REPORT <br /> 6 HISTORIC GROUNDWATER ANALYTICAL RESULTS AND PROPOSED <br /> COMPLIANCE WELL BACKGROUND CONCENTRATION LIMITS, FULL SCALE <br /> IN SITU HEXAVALENT CHROMIUM REDUCTION TREATMENT <br /> 7 TOTAL AND HEXAVALENT CHROMIUM RESULTS EVALUATION, 2011 <br /> ANNUAL GROUNDWATER MONITORING REPORT <br /> 8 ANALYSIS OF CHROMIUM CONCENTRATIONS AND REDUCTION POTENTIAL <br /> 9 CHANGE IN GROUNDWATER CHROMIUM PLUME SIZE OVER TIME <br /> LIST OF FIGURES <br /> 1 SITE LOCATION MAP <br /> 2 SITE PLAN <br /> 3 IN SITU REACTIVE BARRIER LOCATIONS AND HORIZONTAL WELLS IN <br /> RETORT PIT AREA <br /> 4 COMPLIANCE WELL ANALYTICAL SUMMARY, OCTOBER 2011 <br /> 5 DECISION LOGIC DIAGRAM FOR PERFORMANCE MONITORING DATA <br /> EVALUATION <br /> MWH , <br /> ii <br />