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Summary for Field Activity Number 1974-006-FA

Area of Operations: offshore Delaware, Maryland, mid-Atlantic shelf, United States, North America, North Atlantic

Dates: August 07, 1974 to August 09, 1974

Objectives: Conduct sewage and acid dump site surveys.

Type of Activity: Observation

Information to be derived:

Summary: Fourteen dives were carried out in and around the two dumpsites located about 40 nm southeast of the mouth of Delaware Bay. The study was part of a coordinated effort involving surface ships (R/V ANNANDALE and R/V ADVANCE II), and ERTS overpass, and sewage release by a City of Philadelphia barge. At the Philadelphia site, no obvious layer of settling sludge was apparent in the water column nor were accumulations on the bottom identified. At the acid dumpsite, a low visibility layer and the underlying zone containing large reddish-yellow flocks above and in the thermocline were the major anomalies observed.

USGS Project Number:

Contact: Dave Folger ()

Map for Area of Operations :

Map of field activity boundary.

Platform Info:
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