Arsenic, copper, lead and PCBs were found in the soil, sediment and water.
He works for the National Park Service on "erosion and sediment control."
During dry periods, the prints fermented, and when the rain returned, they were preserved under layers of sediment and mud.
The large bottle is served slightly on its side in a wicker basket so the sediment can sink to the bottom.
Fresh river water, carrying its rich load of sediment, no longer reaches and replenishes the Delta.
After the frying is done, the fat should be allowed to stand in a cool place to permit any sediment to settle.
It will be noticed, however, that the sediment is heaped in the middle of the cell.
But a good deal of sediment is carried by the river out to sea.
A drainpipe from the bottom of the tank is also desirable to draw off the accumulations of sediment.
Inject about a tablespoonful of this liquid and sediment up each nostril, with a syringe.
1540s, "matter which settles at the bottom of water or other liquid," from Middle French sédiment (16c.) and directly from Latin sedimentum "a settling, sinking down," from stem of sedere "to settle, sit" (see sedentary).
sediment sed·i·ment (sěd'ə-mənt)
Insoluble material that sinks to the bottom of a liquid, as in hypostasis.