Appendix I - Hazardous Materials Documentation - VTA

TABLE OF CONTENTS (Cont.)
Contaminant Management Plan, SVRT/BART Extension
Section Page
4.1.1 Sampling Strategy .............................................................................................27
4.1.1.1 Preliminary Reconnaissance Characterization...................................27
4.1.1.2 Hot Spot Characterization .................................................................28
4.1.1.3 Discovery of Unknown Impact..........................................................28
4.1.1.4 Waste Disposal Characterization.......................................................28
4.1.2 Chemical Analysis Methods..............................................................................29
4.1.3 Analysis of Data................................................................................................30
4.1.3.1 Data Populations................................................................................30
4.1.3.2 Upper Confidence Limit Calculations...............................................30
4.1.3.3 Exposure Point Concentrations .........................................................33
4.2 Soil/Ballast Reuse .............................................................................................................33
4.2.1 Migration Potential Zones.................................................................................33
4.2.2 Reuse Scenarios ................................................................................................33
4.2.3 Reuse Scenario Selection Process .....................................................................34
4.2.4 Screening Values...............................................................................................34
4.2.4.1 Unrestricted Off-Site Reuse...............................................................35
4.2.4.2 Unrestricted On-Site Reuse ...............................................................36
4.2.4.3 Stations and Facilities........................................................................38
4.2.4.4 Right-of-Way.....................................................................................40
4.2.4.5 Encapsulation ....................................................................................40
4.2.5 Reuse Procedures ..............................................................................................44
4.2.5.1 Non-Encapsulated Material ...............................................................44
4.2.5.2 Encapsulated Material .......................................................................47
4.2.5.3 Material Reuse in an MPZ.................................................................48
4.3 Soil/Ballast Transportation ...............................................................................................48
4.3.1 Transportation Modes .......................................................................................48
4.3.2 On-Site Transportation......................................................................................49
4.3.3 Off-Site Transportation .....................................................................................50
4.3.3.1 Potential Destinations........................................................................51
4.3.3.2 Transportation Routes .......................................................................51
4.3.4 Loading and Traffic Control Procedures...........................................................53
4.3.5 Transportation Health and Safety......................................................................54
4.3.6 Transportation Contingency Plan......................................................................54
4.3.7 Transportation Record Keeping ........................................................................54
4.4 Soil/Ballast Disposal.........................................................................................................55
4.5 Soil/Ballast Stockpiling ....................................................................................................56
4.5.1 Stockpile Locations...........................................................................................56
4.5.2 Stockpile Location Security ..............................................................................57
4.5.3 Unloading..........................................................................................................58
4.5.4 Stockpiling Procedures......................................................................................58
4.6 Air Monitoring..................................................................................................................60
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