State finds seismic testing inconsistent with coastal management policies

MOREHEAD CITY, NC (WWAY) — The N.C. Division of Coastal Management has found that a proposed seismic survey related to oil and gas exploration in the Atlantic Ocean off the North Carolina coast is inconsistent with state coastal management policies.

After review, the agency formally objected to the proposed activity by WesternGeco and found it inconsistent with state policies as outlined in a letter to the company from Coastal Management Director Braxton Davis.

WesternGeco proposes to conduct a Marine Geophysical Survey via 2D seismic survey off the North Carolina coast to gather geological and geophysical data that could provide information about the feasibility of future development of offshore oil and gas resources. The full proposed survey area extends from approximately 19 miles offshore of the southeast coast of Maryland south to approximately 50 miles offshore of St. Augustine, Florida. The survey would involve a vessel towing a seismic airgun array, with operations occurring an estimated 208 days over a period of about a year.

The Division of Coastal Management anticipates that airgun arrays will fire approximately every 10 seconds and be in continuous operation as weather and other logistics allow. Sound will be generated across a wide range of frequencies, from approximately 10 to 2000 Hz, with noise levels generally ranging from 225 to 260 decibels.

The survey would take place entirely in federal waters, adjacent to North Carolina’s coastal zone. State law does not require coastal development permits for projects outside of the state waters, but the federal Coastal Zone Management Act requires that projects needing federal permits be found consistent with the state’s coastal policies when the proposed activity may affect any land use, water use or natural resource within the state’s coastal zone.