Laserfiche WebLink
6.0 Impact Considerations Version :27.10.4 <br /> Spill on Land (Soil Surfaces) <br /> Confinement Methods <br /> Product can be trapped in ditches and gullies by earth dams. Where excavating <br /> machinery is available, dams can be bulldozed to contain lakes of product. Dams, <br /> small and large, should be effectively employed to protect priority areas such as inlets <br /> to drains, sewers, ducts and watercourses. These can be constructed of earth, <br /> sandbags, absorbents, or any other effective method. If time does not permit a large <br /> dam, many small ones can be made, each one holding a portion of the spill as it <br /> advances. The terrain will dictate the placement of the dams. If the spill is minor, <br /> natural dams or earth absorption will usually stop the product before it advances a <br /> significant distance. Cleanup is the main concern in such situations. <br /> In situations where vapors from a spill present a clear and present danger to property <br /> or life (possible ignition because of passing automobiles, nearby houses, or work <br /> vehicles approaching the area), spraying the surface of the spill with dispersant will <br /> greatly reduce the release of additional vapors from the product. This method is <br /> especially adapted to gasoline spills on soil surfaces. <br /> Prior to the use of dispersant agents, ensure that permission has been granted by <br /> government authorities and local landowner. Local government authorities to be <br /> contacted may include city council, county board of commissioners, city or county fire <br /> chiefs, the county forestry commission or firetower, and the local environmental <br /> protection agency. In seeking permission from these authorities, be prepared to <br /> convince them that adequate safety precautions have been and will be taken during the <br /> operation. Regional Response Team can only give approval for use of dispersant <br /> agents. <br /> . Removal Methods <br /> The recovery and removal of free product from soil surfaces is a difficult job. The best <br /> approaches at present seem to be: <br /> • Removal with suction equipment to tank truck if concentrated in volumes large <br /> enough to be picked up. Channels can be formed to drain pools of product into <br /> storage pits. The suction equipment can then be used. <br /> • Small pockets may have to be dipped up by hand. <br /> Shell Supply and Distribution 6-30 Stockton Terminal FRP <br /> ©2019 Witt O' Brien's Revision Date:October, 2019 <br />