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Client: U.S. Army Corps of Engineers Completion Date: 2002
Contract Value: $45K
During
November 2002, Sea Surveyor collected sediment core samples of nominal 10’
length at eighteen (18) locations in the salt marsh and wetlands of Morro
Bay, California. The sediment
samples were collected from a shallow-draft 20’ x 40’ barge using a
pneumatic vibratory corer (vibracore) and a portable Macro Core GeoProbe Sampler. The barge, propelled by a 22’ boat with twin outboard motors,
is capable of floating in as little as 0.5 meters of water. The
10’ Mini-Vibracore
sediment sampling was conducted during the
highest annual tides
of 2002 to enable the shallow-draft barge to access the salt marsh
and upland sampling sites using the natural meandering channels of
Chorro Creek and Los Osos Creek.
Sea Surveyor collected the sediment samples for the LA
District, Corps of
Engineers. Sea Surveyor was
responsible for providing the barge, push
boat, vibracore/GeoProbe and an experienced crew. Sea Surveyor
collected the cores, removed the sediment samples from the liners,
took
digital photographs of the cores, maintained penetration/location
logs, and
960-C Grant
Street, Benicia CA 94510 (707)
746-1853 info@seasurveyor.com
assisted the Corps with physical and chemical subsampling.
20’ x 40’ Barge with Vibracore (left)
and GeoProbe (right) GeoProbe Map of Morro Bay Showing
Core Locations