The Council’s Long-Term Environmental Monitoring Program (LTEMP) was begun in 1993 with the goal of monitoring for environmental impacts from oil transportation activities.
This annual report examines the hydrocarbon chemistry data from Port Valdez sediments and mussel tissues with
the goal of monitoring for impacts from oil transportation activities on the environment at selected sites from Prince
William Sound (PWS) and the Gulf of Alaska (GOA).
On 21 September 2017, an estimated 150 gallons of Alaska North Slope (ANS) crude oil were accidentally released during crude oil loading arm leak testing at Berth 5 of the Alyeska Marine Terminal.