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Full-Text Articles in Physical Sciences and Mathematics
Man's Physical Effects On The Elizabeth River, Maynard M. Nichols, Mary M. Howard-Strobel
Man's Physical Effects On The Elizabeth River, Maynard M. Nichols, Mary M. Howard-Strobel
VIMS Books and Book Chapters
Man's ever increasing activities in the Elizabeth River, i.e. dredging, disposal of dredged material and waterfront development, have drastically altered the river floor, reshaped the shoreline and changed the circulation. Long-continued dredging of shipping channels, which is fostered by coal export, larger ships, and military needs, has moved 220 million cu yds of sediment since 1870. As a result channel depth has increased 1.8 fold, and maintenance dredging rates have doubled about every 35 years. Open water disposal released 40 million cu yds into Hampton Roads and lower Chesapeake Bay. Landfill buried tributary creeks, moved the waterfront into the river …
Trace Element Contamination From Fly Ash Sites Near Chisholm Creek, Va, George C. Grant, Bruce J. Neilson, Gene M. Silberhorn
Trace Element Contamination From Fly Ash Sites Near Chisholm Creek, Va, George C. Grant, Bruce J. Neilson, Gene M. Silberhorn
VIMS Books and Book Chapters
The safe disposal of fly ash from power plants remains a concern because of dwindling available disposal sites and potential or actual environmental consequences. During the period from 1957 to 1974, the Virginia Electric and Power Co. station at Yorktown used a mixture of coal and refinery coke for power generation. The fly ash and bottom ash byproducts were disposed of in borrow pits which drain into Chisman Creek, a small estuary near the York River. In 1980 a domestic well near the pits turned green and tests revealed high concentrations of V and Se in some wells. Subsequently, contaminated …
Impacts Of Alum Sludge On Tidal Freshwater Streams, Morris H. Roberts, Robert J. Diaz
Impacts Of Alum Sludge On Tidal Freshwater Streams, Morris H. Roberts, Robert J. Diaz
VIMS Books and Book Chapters
Alum sludge, generated in the processing of surface water .for drinking water supplies, has traditionally been discharged into nearby streams in Virginia and elsewhere. Alum sludge contains aluminum in an insoluble and non-toxic form. There remains concern, however, that alum sludge may have a negative impact on receiving waters.