IHA Application: Seismic Surveys in Cook Inlet by Marathon Oil ...

2. The Date(s) and Duration of Such Activity and the Specific Geographical
Region Where it will Occur.
Marathon Oil Company seeks an incidental take authorization for a period of
approximately one and a half months (1 October to 30 November, 2007).
Mobilization of operations will occur immediately after seismic operations are
completed at the Granite Point project area by Union Oil Company of California,
probably in late September. Seismic operations will continue for 45 days,
beginning as early as 1 October and ending no later than 30 November, depending
on the completion date of the Granite Point project and weather. The geographic
region of activity encompasses a 68.51 km² (26.45 mi²) area in lower Cook Inlet
on the eastern shore, paralleling the shoreline for about 15.2 km (9.5 mi) and
extending from shore into the inlet an average of about 6.1 km (3.8 mi) (Figure 1).
There are no major rivers flowing into the open water seismic project area.
Water depths range from 0 to 15 m (48 ft), with most of the area less than 7.3 m
(24 ft) deep. The approximate boundaries of the region of the project area located
over water are N 60 09, W 151 30, N 60 12, W 151 34, N 60 17, W 151 25, and N
60 16, W 151 21. Seismic operations will occur in an adjacent shoreward area on
land which is not part of the IHA.
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