Oil-lifting Chemical Tested in Berkeley Marina

SAN FRANCISCO – Cleanup crews are testing the oil-lifting chemicals CytoSol and Corexit 9580 to determine their effectiveness to separate oil from rocks on a beach in the Berkeley Marina today.

Cleanup crews have been using hand-cleaning measures to recover the gross amount of oil on the beaches. After that process is complete, remaining oil on the rocks is unrecoverable by hand cleaning. The California Department of Fish and Game, National Oceanic and Atmospheric Administration (NOAA), NOAA’s National Marine Sanctuary Program and National Park Service are overseeing the testing of these oil-lifting chemicals to determine their effectiveness to separate the oil from rocks and other material around the coastline affected by the oil spill.

The oil-lifting chemicals will be applied by hand or spray wand along the top of the riprap and allowed to soak into the oil for approximately 30 minutes. Nearby seawater will then be sprayed along the top of the riprap in an attempt to release any oil into the adjacent bay water. Prior to the spraying process, a 200-foot double containment boom will surround the test area to prevent any potentially mobilized oil from entering the bay.

Once the water and oil is released into the containment area, cleanup crews will observe for any signs of dispersion into the water by collecting filtered seawater samples from both inside and outside the containment boom.

A 200-foot long section of rocky riprap shoreline on the south side of the Berkeley Marina is being used to conduct this test.

The oil-lifting chemicals CytoSol and Corexit 9580 are a licensed product in the State of California and were designed for oil response cleanups.

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