Skip to content
Juneau State Office Mailing Address Update

All mail sent to the DEC office in Juneau through the U.S. Postal Service must be addressed to P.O. Box 111800, Juneau, AK, 99811. Beginning October 1, all mail addressed to our Willoughby Avenue address will not be delivered and will be returned to sender by the Post Office. This change only impacts incoming mail to the Juneau office.

Eni Rock Flour #2 Drilling Mud Spill

Rock Flour Well #2. The Rock Flour Prospect is located approximately 4 miles south of the Milne Point Road and Spine Road intersection, west of Prudhoe Bay, Alaska.
Eni Petroleum discovered the spill at 11:30 AM, January 4, 2007, and reported the spill to ADEC at 12:00 PM, January 4, 2007.
Spill Id
Product/ Quantity
Eni estimates 3,150 gallons (75 barrels) of water-based drilling mud. These fluids are from the upper portion of the well that was above any oil-bearing formation. As a result, no oil is present in the fluids.
The spilled fluids were placed in an ice-bermed storage area where the drilling mud would freeze and later be hauled to the grind and inject facility at Prudhoe Bay for disposal. Although the ambient air temperature was about -40°F, the fluids were sufficiently warm to melt through the ice sidewall and spill onto the snow covered tundra adjacent to the ice pad.

ADEC Situation Reports

State map showing spill location

Contact Information


Images may be downloaded for free and used in publications provided credit is given to the source.

January 4, 2007

January 7, 2007

January 8-9, 2007