APPENDIX A Observations of Suspended Sediment ......Jul 02, 2009  · Figure A-1. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Ebb in the Northern MSC.

APPENDIX A

Observations of Suspended Sediment Concentration (TSS) Measured with ADCP

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-2

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Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-3

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

Distance (m)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Transect A

Transect B

Transect C

Transect D

Figure A-1. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Ebb in the Northern MSC. Presented are vertical slices of turbidity measured with ADCP along each vessel

transect. The approximate location of the channel boundaries are shown as dashed lines.

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250

05

1015

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250

05

1015

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250

05

1015

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250

05

1015

Dep

th(m

)

Distance (m)

-250 -200 -150 -100 -50 0 50 100 150 200 250

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Transect F

Figure A-2. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Ebb in the Northern MSC. Presented are vertical slices of turbidity measured with ADCP along each vessel

transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-4

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

Distance (m)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Figure A-3. Suspended Sediment Concentration (TSS) Measured with ADCP during First Low Slack in the Northern MSC. Presented are vertical slices of turbidity measured with ADCP along each vessel

transect. The approximate location of the channel boundaries are shown as dashed lines.

Dep

th(m

)

-200 -100 0 100 200 300

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-200 -100 0 100 200 300

05

1015

Dep

th(m

)

-200 -100 0 100 200 300

05

1015

Dep

th(m

)

Distance (m)

-200 -100 0 100 200 300

05

1015

Transect A

Transect B

Transect C

Transect D

Figure A-4. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Low Slack in the Northern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-5

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

Dep

th(m

)

Distance (m)

-200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Figure A-5. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Flood in the Northern MSC. Presented are vertical slices of turbidity measured with ADCP along each vessel

transect. The approximate location of the channel boundaries are shown as dashed lines.

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

TSS

Con

c (m

g/L

01020304050

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

Distance (m)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Transect F

Figure A-6. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Flood in the Northern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-6

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Dep

th(m

)

Distance (m)

-200 -150 -100 -50 0 50 100 150 200 250 300 350

05

1015

Transect A

Transect B

Transect C

Transect D

Figure A-7. Suspended Sediment Concentration (TSS) Measured with ADCP during First High Slack

in the Northern MSC. Presented are vertical slices of turbidity measured with ADCP along each vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

Dep

th(m

)

-250 -200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

Dep

th(m

)

Distance (m)

-250 -200 -150 -100 -50 0 50 100 150 200 250 300

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Figure A-8. Suspended Sediment Concentration (TSS) Measured with ADCP during Second High Slack in the Northern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-7

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

Distance (m)

-200 -100 0 100 200 300 400

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Figure A-9. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Ebb in the Southern MSC. Presented are vertical slices of turbidity measured with ADCP along each vessel

transect. The approximate location of the channel boundaries are shown as dashed lines.

Dep

th(m

)

-300 -200 -100 0 100 200 300 400

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-300 -200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

-300 -200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

Distance (m)

-300 -200 -100 0 100 200 300 400

05

1015

Transect A

Transect B

Transect C

Transect D

Figure A-10. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Ebb in the Southern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-8

Dep

th(m

)

-300 -200 -100 0 100 200 300

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-300 -200 -100 0 100 200 300

05

1015

Dep

th(m

)

-300 -200 -100 0 100 200 300

05

1015

Dep

th(m

)

Distance (m)

-300 -200 -100 0 100 200 300

05

1015

Transect A

Transect B

Transect C

Transect D

Figure A-11. Suspended Sediment Concentration (TSS) Measured with ADCP during First Low Slack in the Southern MSC. Presented are vertical slices of turbidity measured with ADCP along each vessel

transect. The approximate location of the channel boundaries are shown as dashed lines.

Dep

th(m

)

-400 -300 -200 -100 0 100 200 300

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-400 -300 -200 -100 0 100 200 300

05

1015

Dep

th(m

)

-400 -300 -200 -100 0 100 200 300

05

1015

Dep

th(m

)

-400 -300 -200 -100 0 100 200 300

05

1015

Dep

th(m

)

-400 -300 -200 -100 0 100 200 300

05

1015

Dep

th(m

)

Distance (m)

-400 -300 -200 -100 0 100 200 300

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Transect F

Figure A-12. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Low Slack in the Southern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-9

Dep

th(m

)

-100 0 100 200 300 400 500

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-100 0 100 200 300 400 500

05

1015

Dep

th(m

)

-100 0 100 200 300 400 500

05

1015

Dep

th(m

)

Distance (m)

-100 0 100 200 300 400 500

05

1015

Transect A

Transect B

Transect C

Transect D

Figure A-13. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Flood in the Southern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Dep

th(m

)

-200 -100 0 100 200 300

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-200 -100 0 100 200 300

05

1015

Dep

th(m

)

-200 -100 0 100 200 300

05

1015

Dep

th(m

)

-200 -100 0 100 200 300

05

1015

Dep

th(m

)

Distance (m)

-200 -100 0 100 200 300

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Figure A-14. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Flood in the Southern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-10

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

-200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

Distance (m)

-200 -100 0 100 200 300 400

05

1015

Transect A

Transect B

Transect C

Transect D

Transect E

Transect F

Figure A-15. Suspended Sediment Concentration (TSS) Measured with ADCP during First High Slack in the Southern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Dep

th(m

)

-300 -200 -100 0 100 200 300 400

05

1015

TSS

Con

c (m

g/L)

01020304050

Dep

th(m

)

-300 -200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

-300 -200 -100 0 100 200 300 400

05

1015

Dep

th(m

)

Distance (m)

-300 -200 -100 0 100 200 300 400

05

1015

Transect A

Transect B

Transect C

Transect D

Figure A-16. Suspended Sediment Concentration (TSS) Measured with ADCP during Second High Slack in the Southern MSC. Presented are vertical slices of turbidity measured with ADCP along each

vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-11

Figure A-17-a. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Ebb in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

near-surface.

Depth = 6.05m

N

MEN1

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382TS

S (m

g/L)

10

20

30

40

50

Figure A-17-b. Suspended Sediment Concentration (TSS) Measured with ADCP during First

Max Ebb in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-12

Depth = Near Bottom

N

MEN1

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382

TSS

(mg/

L)

10

20

30

40

50

Figure A-17-c. Suspended Sediment Concentration (TSS) Measured with ADCP during First

Max Ebb in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP near-bottom.

Figure A-18-a. Suspended Sediment Concentration (TSS) Measured with ADCP during

Second Max Ebb in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP near-surface.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-13

Figure A-18-b. Suspended Sediment Concentration (TSS) Measured with ADCP during

Second Max Ebb in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP mid-depth.

Depth = Near Bottom

N

MEN2

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382

TSS

(mg/

L)

10

20

30

40

50

Figure A-18-c. Suspended Sediment Concentration (TSS) Measured with ADCP during

Second Max Ebb in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-14

Depth = 2.05m

N

LSN1

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382

TSS

(mg/

L)

10

20

30

40

50

Figure A-19-a. Suspended Sediment Concentration (TSS) Measured with ADCP during First Low Slack in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

near-surface.

Figure A-19-b. Suspended Sediment Concentration (TSS) Measured with ADCP during First Low Slack in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-15

Depth = Near Bottom

N

LSN1

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382

TSS

(mg/

L)

10

20

30

40

50

Figure A-19-c. Suspended Sediment Concentration (TSS) Measured with ADCP during First Low Slack in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

near-bottom.

Figure A-20-a. Suspended Sediment Concentration (TSS) Measured with ADCP during

Second Low Slack in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP near-surface.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-16

Depth = 6.05m

N

LSN2

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382

TSS

(mg/

L)

10

20

30

40

50

Figure A-20-b. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Low Slack in the Northern MSC. Shown are plan-view contours of TSS measured with

ADCP mid-depth.

Depth = Near Bottom

N

LSN2

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382TS

S (m

g/L)

10

20

30

40

50

Figure A-20-c. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Low Slack in the Northern MSC. Shown are plan-view contours of TSS measured with

ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-17

Figure A-21-a. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Flood in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

near-surface.

Depth = 6.05m

N

MFN1

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382TS

S (m

g/L)

10

20

30

40

50

Figure A-21-b. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Flood in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-18

Depth = Near Bottom

N

MFN1

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382

TSS

(mg/

L)

10

20

30

40

50

Figure A-21-c. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Flood in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

near-bottom.

Figure A-22-a. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Flood in the Northern MSC. Shown are plan-view contours of TSS measured with

ADCP near-surface.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-19

Figure A-22-b. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Flood in the Northern MSC. Shown are plan-view contours of TSS measured with

ADCP mid-depth.

Depth = Near Bottom

N

MFN2

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382TS

S (m

g/L)

10

20

30

40

50

Figure A-22-c. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Flood in the Northern MSC. Shown are plan-view contours of TSS measured with

ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-20

Figure A-23-a. Suspended Sediment Concentration (TSS) Measured with ADCP during First High Slack in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

near-surface.

Depth = 6.05m

N

HSN1

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382TS

S (m

g/L)

10

20

30

40

50

Figure A-23-b. Suspended Sediment Concentration (TSS) Measured with ADCP during First High Slack in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-21

Figure A-23-c. Suspended Sediment Concentration (TSS) Measured with ADCP during First High Slack in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP

near-bottom.

Depth = 2.05m

N

HSN2

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382TS

S (m

g/L)

10

20

30

40

50

Figure A-24-a. Suspended Sediment Concentration (TSS) Measured with ADCP during Second High Slack in the Northern MSC. Shown are plan-view contours of TSS measured with

ADCP near-surface.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-22

Depth = 6.05m

N

HSN2

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382

TSS

(mg/

L)

10

20

30

40

50

Figure A-24-b. Suspended Sediment Concentration (TSS) Measured with ADCP during Second High Slack in the Northern MSC. Shown are plan-view contours of TSS measured with

ADCP mid-depth.

Depth = Near Bottom

N

HSN2

-71.05 -71.048 -71.046 -71.044 -71.042

42.375

42.376

42.377

42.378

42.379

42.38

42.381

42.382

TSS

(mg/

L)

10

20

30

40

50

Figure A-24-c. Suspended Sediment Concentration (TSS) Measured with ADCP during

Second High Slack in the Northern MSC. Shown are plan-view contours of TSS measured with ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-23

Figure A-25-a. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Ebb in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

near-surface.

Figure A-25-b. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Ebb in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-24

Depth = Near Bottom

N

MES1

-71.006 -71.004 -71.002 -71 -70.998 -70.996 -70.994 -70.992 -70.9942.33

42.331

42.332

42.333

42.334

42.335

42.336

42.337

42.338

TSS

(mg/

L)

10

20

30

40

50

Figure A-25-c. Suspended Sediment Concentration (TSS) Measured with ADCP during First

Max Ebb in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP near-bottom.

Figure A-26-a. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Ebb in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP near-surface.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-25

Figure A-26-b. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Ebb in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP mid-depth.

Figure A-26-c. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Ebb in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-26

Figure A-27-a. Suspended Sediment Concentration (TSS) Measured with ADCP during First Low Slack in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

near-surface.

Figure A-27-b. Suspended Sediment Concentration (TSS) Measured with ADCP during First Low Slack in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-27

Figure A-27-c. Suspended Sediment Concentration (TSS) Measured with ADCP during First Low Slack in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

near-bottom.

Figure A-28-a. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Low Slack in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP near-surface.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-28

Figure A-28-b. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Low Slack in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP mid-depth.

Figure A-28-c. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Low Slack in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-29

Depth = 2.05m

N

MFS1

-71.006 -71.004 -71.002 -71 -70.998 -70.996 -70.994 -70.992 -70.9942.33

42.331

42.332

42.333

42.334

42.335

42.336

42.337

42.338

TSS

(mg/

L)

10

20

30

40

50

Figure A-29-a. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Flood in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

near-surface.

Figure A-29-b. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Flood in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-30

Figure A-29-c. Suspended Sediment Concentration (TSS) Measured with ADCP during First Max Flood in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

near-bottom.

Figure A-30-a. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Flood in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP near-surface.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-31

Figure A-30-b. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Flood in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP mid-depth.

Figure A-30-c. Suspended Sediment Concentration (TSS) Measured with ADCP during Second Max Flood in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-32

Figure A-31-a. Suspended Sediment Concentration (TSS) Measured with ADCP during First High Slack in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

near-surface.

Figure A-31-b. Suspended Sediment Concentration (TSS) Measured with ADCP during First High Slack in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-33

Figure A-31-c. Suspended Sediment Concentration (TSS) Measured with ADCP during First High Slack in the Southern MSC. Shown are plan-view contours of TSS measured with ADCP

near-bottom.

Figure A-32-a. Suspended Sediment Concentration (TSS) Measured with ADCP during Second High Slack in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP near-surface.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-34

Figure A-32-b. Suspended Sediment Concentration (TSS) Measured with ADCP during Second High Slack in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP mid-depth.

Figure A-32-c. Suspended Sediment Concentration (TSS) Measured with ADCP during Second High Slack in the Southern MSC. Shown are plan-view contours of TSS measured with

ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-35

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

TSS

Con

c (m

g/L)

0255075100125

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

A00:01

B00:03

C00:06

D00:19

E00:32

F00:43

Distance(m)

Figure A-33. Suspended Sediment Concentration (TSS) Measured with ADCP during July 1, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented are vertical slices of TSS (above

background) measured with ADCP along each vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-36

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

TSS

Con

c (m

g/L)

0255075100125

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

A00:01

B00:05

C00:09

D00:12

E00:15

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

F00:26

G00:37

H00:40

I01:05

J01:11

Distance(m) Figure A-34. Suspended Sediment Concentration (TSS) Measured with ADCP during October 3, 2008

Low Slack Disposal into the Mystic River CAD Cell. Presented are vertical slices of TSS (above background) measured with ADCP along each vessel transect. The approximate location of the channel

boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-37

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

TSS

Con

c (m

g/L)

0255075100125

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

A00:02

B00:09

C00:13

D00:16

E00:32

F00:36

Distance(m)

Figure A-35. Suspended Sediment Concentration (TSS) Measured with ADCP during October 3, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented are vertical slices of TSS (above

background) measured with ADCP along each vessel transect. The approximate location of the channel boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-38

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

TSS

Con

c (m

g/L)

0255075100125

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

A00:09

B00:12

C00:14

D00:17

E00:44

F00:50

Distance(m)

Figure A-36. Suspended Sediment Concentration (TSS) Measured with ADCP during October 27, 2008 Low Slack Disposal into the Mystic River CAD Cell. Presented are vertical slices of TSS (above background) measured with ADCP along each vessel transect. The approximate location of the channel

boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-39

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

TSS

Con

c (m

g/L)

0255075100125

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

A00:02

B00:05

C00:09

D00:12

E00:14

Di t ( )

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

Dep

th(m

)

-150 -100 -50 0 50 100 150

0

10

20

F00:42

G00:45

H00:47

I00:49

J00:52

K00:55

Distance(m)

Figure A-37. Suspended Sediment Concentration (TSS) Measured with ADCP during October 28,

2008 High Slack Disposal into the Mystic River CAD Cell. Presented are vertical slices of TSS (above background) measured with ADCP along each vessel transect. The approximate location of the channel

boundaries are shown as dashed lines.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-40

Depth = 2.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-38-a. Suspended Sediment Concentration (TSS) Measured with ADCP during July 1, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view contour of

TSS (above background) measured with ADCP near-surface.

Depth = 6.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-38-b. Suspended Sediment Concentration (TSS) Measured with ADCP during July 1, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view contour of

TSS (above background) measured with ADCP mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-41

Figure A-38-c. Suspended Sediment Concentration (TSS) Measured with ADCP during July 1, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view contour of

TSS (above background) measured with ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-42

Depth = 2.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Depth = 2.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-39-a. Suspended Sediment Concentration (TSS) Measured with ADCP during

October 3, 2008 Low Slack Disposal into the Mystic River CAD Cell. Presented are the plan-view contours of TSS (above background) measured with ADCP near-surface from 1 to 15 minutes (upper)

and from 26 to 71 minutes (lower).

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-43

Depth = 6.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-39-b. Suspended Sediment Concentration (TSS) Measured with ADCP during October 3, 2008 Low Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view

contour of TSS (above background) measured with ADCP mid-depth from 1 to 15 minutes (upper) and from 26 to 71 minutes (lower).

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-44

Depth = Near Bottom

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-39-c. Suspended Sediment Concentration (TSS) Measured with ADCP during October 3, 2008 Low Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view

contour of TSS (above background) measured with ADCP near-bottom from 1 to 15 minutes (upper) and from 26 to 71 minutes (lower).

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-45

Figure A-40-a. Suspended Sediment Concentration (TSS) Measured with ADCP during October 3, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view

contour of TSS (above background) measured with ADCP near-surface.

Figure A-40-b. Suspended Sediment Concentration (TSS) Measured with ADCP during October 3, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view

contour of TSS (above background) measured with ADCP mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-46

Figure A-40-c. Suspended Sediment Concentration (TSS) Measured with ADCP during October 3, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view

contour of TSS (above background) measured with ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-47

Depth = 2.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-41-a. Suspended Sediment Concentration (TSS) Measured with ADCP during

October 27, 2008 Low Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view contour of TSS (above background) measured with ADCP near-surface.

Depth = 6.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)20

40

60

80

100

Figure A-41-b. Suspended Sediment Concentration (TSS) Measured with ADCP during

October 27, 2008 Low Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view contour of TSS (above background) measured with ADCP mid-depth.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-48

Depth = Near Bottom

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-41-c. Suspended Sediment Concentration (TSS) Measured with ADCP during

October 27, 2008 Low Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view contour of TSS (above background) measured with ADCP near-bottom.

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-49

Depth = 2.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Depth = 2.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-42-a. Suspended Sediment Concentration (TSS) Measured with ADCP during

October 28, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented are the plan-view contours of TSS (above background) measured with ADCP near-surface from 2 to 14 minutes (upper)

and from 42 to 55 minutes (lower).

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-50

Depth = 6.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Depth = 6.05m

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-42-b. Suspended Sediment Concentration (TSS) Measured with ADCP during

October 28, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view contour of TSS (above background) measured with ADCP mid-depth from 2 to 14 minutes (upper)

and from 42 to 55 minutes (lower).

Boston Harbor Inner Harbor Maintenance Dredging Project June 2009 Plume Monitoring Final Summary Report Page A-51

Depth = Near Bottom

N

-71.058 -71.056 -71.054 -71.052 -71.05 -71.048 -71.046 -71.04442.383

42.384

42.385

42.386

42.387

42.388

42.389

TSS

(mg/

L)

20

40

60

80

100

Figure A-42-c. Suspended Sediment Concentration (TSS) Measured with ADCP during

October 28, 2008 High Slack Disposal into the Mystic River CAD Cell. Presented is the plan-view contour of TSS (above background) measured with ADCP near-bottom from 2 to 14 minutes (upper)

and from 42 to 55 minutes (lower).