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' Stantec <br /> ' L & M OPERABLE UNIT-THIRD QUARTER 2010 SITE STATUS, REMEDIAL SUMMARY, <br /> AND GROUNDWATER MONITORING REPORT <br /> ' Table of Contents <br /> 1.0 INTRODUCTION 1.1 <br /> ......................................... <br /> ' 1.1 SITE DESCRIPTION.........................................................................................................1.2 <br /> 1.2 SUMMARY OF PREVIOUS INVESTIGATIONS AND REMEDIAL ACTION......................1.3 <br /> 1.3 REGIONAL GEOLOGY/HYDROGEOLOGY.....................................................................1.8 <br /> ' 2.0 GROUNDWATER MONITORING AND SAMPLING.........................................................2.1 <br /> 2.1 GROUNDWATER MONITORING AND SAMPLING PROCEDURES................................2.1 <br /> ' 2.2 LABORATORY ANALYSIS...............................................................................................2.2 <br /> 2.3 THIRD QUARTER 2010 SHALLOW GROUNDWATER RESULTS...................................2.2 <br /> 2.3.1 Shallow Zone Groundwater Gradient..................................................................2.2 <br /> 2.3.2 Shallow Zone Groundwater Quality Data............................................................2.3 <br /> 2.3.3 Separate Phase Hydrocarbons...........................................................................2.3 <br /> 2.3.3.1 Petroleum Hydrocarbons and Fuel Oxygenates.................................................2.4 <br /> 2.3.3.2 Volatile Organic Compounds..............................................................................2.5 <br /> ' 2.3.3.3 Semi-volatile Organic Compounds.....................................................................2.5 <br /> 2.3.3.4 Dissolved Metals................................................................................................2.6 <br /> 2.3.3.5 Quality Assurance/Quality Control Samples.......................................................2.6 <br /> ' 2.3.3.6 General Laboratory Notes..................................................................................2.7 <br /> 2.4 THIRD QUARTER 2010 B-ZONE GROUNDWATER RESULTS.......................................2.8 <br /> 2.4.1 B-Zone Groundwater Gradient...........................................................................2.8 <br /> 2.4.2 B-Zone Groundwater Quality Data .....................................................................2.8 <br /> 2.4.2.1 Separate Phase Hydrocarbons...........................................................................2.9 <br /> 2.4.2.2 Petroleum Hydrocarbons and Fuel Oxygenates.................................................2.9 <br /> t 2.4.2.3 Volatile Organic Compounds............................................................................2.10 <br /> 2.4.2.4 Semi-volatile Organic Compounds...................................................................2.10 <br /> 2.4.2.5 Dissolved Metals..............................................................................................2.10 <br /> 2.4.2.6 Quality Assurance/Quality Control Samples.....................................................2.11 <br /> ' 2.4.2.7 General Laboratory Notes................................................................................2.11 <br /> 2.5 THIRD QUARTER 2010 C-ZONE GROUNDWATER RESULTS.....................................2.12 <br /> 2.5.1 C-Zone Groundwater Gradient Data.................................................................2.12 <br /> 2.5.2 C-Zone Groundwater Quality Data...................................................................2.12 <br /> 2.5.2.1 Separate Phase Hydrocarbons.........................................................................2.12 <br /> 2.5.2.2 Petroleum Hydrocarbons and Fuel Oxygenates ...............................................2.12 <br /> ' 2.5.2.3 Volatile Organic Compounds............................................................................2.13 <br /> 2.5.2.4 Semi-volatile Organic Compounds...................................................................2.14 <br /> 2.5.2.5 Dissolved Metals..............................................................................................2.14 <br /> ' 2.5.2.6 Quality Assurance/Quality Control Samples.....................................................2.14 <br /> 2.5.2.7 General Laboratory Notes................................................................................2.14 <br /> 2.6 THIRD QUARTER 2010 D-ZONE GROUNDWATER RESULTS.....................................2.15 <br /> 2.6.1 D-Zone Groundwater Gradient Data.................................................................2.15 <br /> ' 2.6.2 D-Zone Groundwater Quality Data ...................................................................2.15 <br /> 2.6.2.1 Separate Phase Hydrocarbons.........................................................................2.15 <br /> 2.6.2.2 Petroleum Hydrocarbons and Fuel Oxygenates ...............................................2.16 <br /> 1 <br /> ' IiTdevrateAT Stork (Paan MA 15)%Reports\OMR12010W1013QIOQSSRORSROMR Sta*bn_FlN .d ( <br />