Unocal goes to extremes to remediate two California petroleum spills

Unocal Corp. is using a number of remediation methods to clean up the Guadalupe diluent spill in California's San Luis Obispo County. Shown here is a skimming operation in a contaminated area that has been isolated with sheetpiles and excavated. The excavated soil is treated to remove contaminants, but residual contamination often remains at the original site, necessitating additional cleanup measures such as the skimming shown here. Photo courtesy of Unocal Corp. History of the Guadalupe-Avila Beach spills [387,703 bytes] Guadalupe diluent spill extent [242,214 bytes] Unocal Corp.'s project manager for the Guadalupe diluent c...

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