ANCHORAGE, Alaska (Anchorage Daily News) — Officials say a succession of mechanical failures led to a persistent spill of oily water in Port Valdez that lasted nearly two weeks. The Anchorage Daily News reported that crews by the end of last week recovered 14 barrels of oil from a contained area near a boat harbor at the Valdez Marine Terminal. More than 240 people are involved in the response to the spill of North Slope crude oil discovered on April 12. The exact amount of oil spilled is unknown. An official says there were three failures involving a faulty valve and a water-level indicator.