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 9.1.2 Regulatory Considerations............................................................ 9-1
9.1.3 Data Requirements ....................................................................... 9-3
9.1.4 Summary of Tiered Evaluation of Plant Bioaccumulation............ 9-3
9.2 Tier I Initial Evaluation of Plant Bioaccumulation .............................. 9-4
9.2.1 Compilation and Evaluation of Existing Information ................... 9-4
9.2.2 Tier I - Evaluation Procedure........................................................ 9-5
9.2.3 Tier I - Plant Bioaccumulation Decision....................................... 9-5
9.3 Tier II Prediction of Plant Bioaccumulation Potential......................... 9-7
9.3.1 Tier II - Prescreen Evaluation of Field Plant Tissue ..................... 9-7
9.3.2 DTPA Procedure for Prediction of Plant Bioaccumulation
Potential .......................................................................................... 9-7
9.3.3 Tier II - Plant Uptake Program (PUP)........................................... 9-8
9.3.4 Tier II - Plant Bioaccumulation DTPA Decision .......................... 9-8
9.4 Tier III Plant Bioaccumulation Test .................................................... 9-9
9.4.1 Tier III - Plant Survival and Growth ........................................... 9-10
9.4.2 Tier III - Plant Bioaccumulation of Contaminants ...................... 9-10
9.4.3 Tier III - Plant Bioaccumulation Decision .................................. 9-11
9.5 Tier IV Plant Bioaccumulation Risk Assessment .............................. 9-11
9.5.1 Evaluation ................................................................................... 9-11
9.5.2 Tier IV - Plant Bioaccumulation Decision .................................. 9-12
9.5.3 Plant Bioaccumulation Management Actions ............................. 9-12
9.6 References ............................................................................................ 9-12
10--CDF Contaminant Management Actions .................................................. 10-1
10.1 Operational Management Actions ...................................................... 10-2
10.2 Treatment of Effluent, Runoff, and Leachate Discharges .................. 10-3
10.3 Engineered Control Measures ............................................................ 10-3
10.3.1 Barrier systems ......................................................................... 10-4
10.3.2 Surface covers........................................................................... 10-4
10.3.3 Liners ........................................................................................ 10-4
10.4 Treatment of Dredged Material Solids ............................................... 10-5
10.5 Guidance for CDF Management Actions ........................................... 10-5
10.6 References .......................................................................................... 10-5
Appendix A: Glossary ........................................................................................A1
Appendix B: Column Settling Test and Effluent Elutriate Procedures ............... B1
B.1 Introduction ............................................................................................ B1
B.2 Effluent Elutriate Tests for Water Quality Evaluation ............................ B1
B.2.1 Apparatus ...................................................................................... B2
B.2.2 Effluent elutriate test procedure .................................................... B3
B.2.3 Chemical analyses ......................................................................... B6
B.2.4 Effluent contaminant concentrations............................................. B7
B.3 Effluent Elutriate for Water Column Toxicity ........................................ B8
B.3.1 Effluent elutriate apparatus ........................................................... B8
B.3.2 Effluent elutriate procedure........................................................... B8
B.3.3 Effluent Elutriate Toxicity Evaluation .......................................... B9
B.4 Column Settling Tests for Effluent TSS/Turbidity ................................. B9
B.4.1 Column settling test apparatus ...................................................... B9
B.4.2 Column settling test procedure.................................................... B13
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