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6.0 Impact Considerations Version :27.10.4 Bioremediants/Biodegradation Enhancement Use of biological countermeasures, or bioremediation, involves the use of hydrocarbon degrading organisms, or environmental or chemical enhancement of indigenous bacteria. They are used to break down oil more quickly than would occur without their introduction into the area. This approach is intended to accelerate the decomposition of petroleum hydrocarbons through natural processes. Other Miscellaneous OSCA Categories (Herding Agents, Emulsifiers, De-Emulsifiers) These categories of OSCAs are less commonly considered for use in oil spill response, so are not further described here. Further definitions and descriptions may be found in the OSPR "Procedures and Forms for the California State Licensing, Renewal and Exemption of Oil Spill Cleanup Agents (OSCAs)". In-Situ Burning In-situ burning means burning the oil in place as a means of removal. For on-water in-situ burn operations, oil must be contained in order to maintain a minimum burn thickness. As a result, the technology is limited by adverse weather or water conditions that limit oil containment. In-situ burning removes the surface oil through combustion. In-situ burning does have the potential to accelerate cleanup of spilled petroleum on the surface of the water or land, and at the same time reduce the risk of petroleum-related impacts on environmentally sensitive areas. Federal and State Policies Directing the ART Use and Approval Federal ART Approval The Unified Command can request the use of ARTs by submitting a formal request to the RRT. It is the policy of the RRT to respond to all such requests within 2 hours. During an oil spill, the Federal On-Scene Coordinator (FOSC) can request the use of an OSCA. This is done through a formal request by the FOSC to the Region IX RRT. State ART Approval OSPR is a member of the Region IX RRT, and will be one of the incident-specific members of the RRT approving use of applied response technologies (including use of OSCAs) when considered for use in, on, near or threatening state waters. Shell Supply and Distribution 6-56 Stockton Terminal FRP ©2019 Witt O' Brien's Revision Date:October, 2019