Alaska environmental officials say a faulty gasket on a tank led to a spill of 6,300 gallons of crude oil and process water at the XTO Energy onshore facility at Nikiski, southwest of Anchorage.
In a situation report Tuesday, the state Department of Environmental Conservation said no resources have been affected. It says all of the spill discovered late Monday afternoon was captured within a secondary containment area.
The state says XTO Energy responded with contractors Monday night to recover free liquid from the secondary containment area _ a bermed area with a 60-mil liner. On Tuesday, the company began removing contaminated snow and ice.