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Sediment
Runoff from Croplands
D & A assisted the USDA National Sedimentation Laboratory
by providing OBS-3s and technical support for a study of sediment
production from tilled agricultural lands in the southeastern
U.S. ... more |
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Gambinonini Mercury
Mine
Using OBS-3s, OBS-5s, rain gauges, and other hydrological
instrumentation, state and federal water-quality officials have
monitored mercury-contaminated sediment in runoff from the abandoned
Gambinonini Mercury Mine located at Santa Maria, California
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Dredging in Bahrain
D & A provided OBS-3As to
log suspended sediments near dredging operations for port expansion
in the Persian Gulf. Vertical profiles were made daily at several
baseline stations far from the project ... more
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Port of Oakland Expansion
D & A provided systems to the Port of Oakland for
monitoring water quality impacts from dredging and construction
of new berthing and freight handling facilities.
... more
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Examples of Installations
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