A thick layer of oil covers a low lying spot of grass near a beach on Unalaska, Alaska., April 19. Shoreline Cleanup Assessment Tracking teams are currently performing assessments of sites affected by the Selendang Ayu oil spill in preparation for the next phase of cleanup slated to start the week of April 25. Unified Command Photo by U.S. Coast Guard Petty Officer Mariana O'Leary.
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