Remediation of Contaminated Sediments in the Elizabeth River
Remediation of Contaminated Sediments in the Elizabeth River
Remediation of Contaminated Sediments in the Elizabeth River
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Sou<strong>the</strong>rn Area Habitat Enhancement<br />
Alternative 5A:<br />
Dredg<strong>in</strong>g with Sand Cover<br />
Remedial Action<br />
Dredge to 1' : 9,574 sy<br />
Dredge to 3' : 6,290 sy<br />
Dredge to 4' : 39,700 sy<br />
Dredge to 5' : 13,320 sy<br />
Sand Cover : 32,250 sy<br />
Alternative 5B:<br />
Dredg<strong>in</strong>g with Habitat Cover<br />
Remedial Action<br />
Dredge to 1' : 2,320 sy<br />
Dredge to 3' : 6,290 sy<br />
Dredge to 4' : 39,700 sy<br />
Dredge to 5' : 13,320 sy<br />
Salt Marsh (0 -2') : 10,720 sy<br />
Oyster Reef (2-8') : 10,300 sy<br />
S<strong>of</strong>t Bottom Habitat (> 8') : 11,230 sy<br />
Area (sy) Volume (cy)<br />
Dredge to 1' 9,570 3,190<br />
Dredge to 3' 59,310 59,310<br />
Dredge from 3-4' 53,020 17,673<br />
Dredge from 4-5' 13,320 4,440<br />
Total: 84,613<br />
Area (sy) Volume (cy)<br />
Dredge to 1' 2,320 773<br />
Whole Area to 3' 59,310 59,310<br />
Dredge from 3-4' 53,020 17,673<br />
Dredge from 4-5' 13,320 4,440<br />
Total: 82,197<br />
Granite Berm<br />
Navigation Channel<br />
Surface PAH (mg/Kg)<br />
< 45<br />
45 - 100<br />
100 - 500<br />
500 - 1,000<br />
1,000 - 2,000<br />
2,000 - 3,000<br />
> 3,000<br />
Hotspot > 500 mg/Kg<br />
Granite Berm<br />
Navigation Channel<br />
Surface PAH (mg/Kg)<br />
< 45<br />
45 - 100<br />
100 - 500<br />
500 - 1,000<br />
1,000 - 2,000<br />
2,000 - 3,000<br />
> 3,000<br />
Hotspot > 500 mg/Kg
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