Dredging in an Active Artillery Impact Area Eagle River Flats, Alaska
DREDGE SPECIFICATIONS
Safety
BASIN INVESTIGATIONS
Laboratory sediment tests
Figure 2. Montgomery tube used for sedimentation tests
Figure 3. Sedimentation test results in Montgomery tube
Weir flow
Figure 5. Instantaneous flow over a rectangular weir
Figure 6. Instantaneous weir flow rates for various heads
Supernatant filtering
Figure 9. Drainage times for 4.5- to 7.5-m weirs
Site characterization - SR96_220019
Table 5. Laboratory hydraulic conductivity tests on sediment
Field tests
Table 7. Laboratory hydraulic conductivity tests for the peaty silt liner material
Figure 12. Results of laboratory permeability tests
Figure 14. Schematics of barrel tests on EOD pad
Field Tests-continue
Figure 16. Results of barrel infiltration tests for sludge on peaty silt
Table 8. Field percolation tests
Figure 18. Barrel infiltration test cell in retention basin
Table 10. Field infiltration tests in basin liner
SITE PREPARATION - SR96_220030
Figure 22. Spoils line outlet pads
Figure 23. Dredge traverse system
INSTRUMENTATION AND SAMPLING
Figure 25. Dredge spoils sampling station
DREDGING ACTIVITY
Figure 27. Cessation of dredging activities
RESULTS - SR96_220037
DISCUSSION - SR96_220038
Figure 30. Pumping contaminated spoils from the Flats
LITERATURE CITED - SR96_220040
APPENDIX A: DREDGING SURVEY INFORMATION PACKAGE
APPENDIX A: DREDGING SURVEY INFORMATION PACKAGE-continue
APPENDIX B: RETENTION BASIN MODEL
Table B1. Retention basin drainage and infiltration model
Table B1. Continued - SR96_220045
Table B1. Continued - SR96_220046
Table B1. Continued - SR96_220047
Flow Summary
APPENDIX C: SPOILS SAMPLE COLLECTION, STORAGE, AND SHIPMENT SOP
APPENDIX D: DECANTED SUPERNATANT SAMPLE COLLECTION, STORAGE, AND SHIPMENT SOP
Report Documentation Page - SR96_220051
SR96_22
DREDGE SPECIFICATIONS
Safety
BASIN INVESTIGATIONS
Laboratory sediment tests
Figure 2. Montgomery tube used for sedimentation tests
Figure 3. Sedimentation test results in Montgomery tube
Weir flow
Figure 5. Instantaneous flow over a rectangular weir
Figure 6. Instantaneous weir flow rates for various heads
Supernatant filtering
Figure 9. Drainage times for 4.5- to 7.5-m weirs
Site characterization - SR96_220019
Table 5. Laboratory hydraulic conductivity tests on sediment
Field tests
Table 7. Laboratory hydraulic conductivity tests for the peaty silt liner material
Figure 12. Results of laboratory permeability tests
Figure 14. Schematics of barrel tests on EOD pad
Field Tests-continue
Figure 16. Results of barrel infiltration tests for sludge on peaty silt
Table 8. Field percolation tests
Figure 18. Barrel infiltration test cell in retention basin
Table 10. Field infiltration tests in basin liner
SITE PREPARATION - SR96_220030
Figure 22. Spoils line outlet pads
Figure 23. Dredge traverse system
INSTRUMENTATION AND SAMPLING
Figure 25. Dredge spoils sampling station
DREDGING ACTIVITY
Figure 27. Cessation of dredging activities
RESULTS - SR96_220037
DISCUSSION - SR96_220038
Figure 30. Pumping contaminated spoils from the Flats
LITERATURE CITED - SR96_220040
APPENDIX A: DREDGING SURVEY INFORMATION PACKAGE
APPENDIX A: DREDGING SURVEY INFORMATION PACKAGE-continue
APPENDIX B: RETENTION BASIN MODEL
Table B1. Retention basin drainage and infiltration model
Table B1. Continued - SR96_220045
Table B1. Continued - SR96_220046
Table B1. Continued - SR96_220047
Flow Summary
APPENDIX C: SPOILS SAMPLE COLLECTION, STORAGE, AND SHIPMENT SOP
APPENDIX D: DECANTED SUPERNATANT SAMPLE COLLECTION, STORAGE, AND SHIPMENT SOP
Report Documentation Page - SR96_220051
SR96_22
