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FUEL OIL NO. 2 331 C Combustible Liquid TTcFl]vIQUE MECHANICAL REMOVAL Contaminated soil and spilled product may be removed by shovels, motorized graders and scrapers, loaders,bulldozers,and draglines ' CONSEQUENCE Removal equipment may become contaminated and present a hazard to later users Incompatible equipment may be damaged or corroded Improper storage of removed materials may result in future spread of contamination. ' MI77GA7I0N Decontaminate all equipment after use Use equipment compatible with spilled product. Store - contaminated materials in safe and secure location. ' WATER SPEL-L TECI1MQETE STOP USE Notify downstream industrial,municipal, and public users to stop water intake or to ' monitor water for contamination. CONSEQUENCE Alternative water supplies may be needed to accommodate users. MITIGATION Provide alternative water supplies as needed until water supply is declared safe TECIWIQi7E FLOATING BOOMSIB RRI RS Oil spill containment booms of compatible material may be deployed. Alternatively, mesh or nets may be strung across stream and anchored every"feet. Straw or peat placed on upstream side of mesh should absorb and retard spreading of spilled product. CONSEQUENCE Leakage may occur under or through barrier if high waves or current present or if not properly deployed. Incompatible materials may be damaged by spilled product. Booms, barrier materials, and deployment equipment may be contaminated.Fire hazards pose risk to response personnel and equipment. MITIGATION Proceed with caution. Stage barriers im senes where necessary Recover spilled product as soon as possible Deoontamnnate equipment after use Dispose of waste materials in proper and safe manner Use compatible equipment.ELuminate ignition sources. TECHNIQUE WATER BY-PASS DAMS . Streams may be provided with a by-pass dam.This is a dam made of compacted earth,clay,or other material with open tubes or pipes passing through under water Upstream ends of pipes or tubes should be well below the layer of floating contaminant. Downstream ends should be at a higher elevation but still below the floating layer. Valves may be installed on downstream ends to control water flow. ' CONSEQUENCE Earthen dams may become saturated with water and seep through or collapse. An insufficient number of by-pass tubes or pipes or additional water may cause overflow ' MITIGA17ON Use sufficient number and capacity of tubes or pipes. Be alert to condition that may lead to dam overflow or collapse Remove spilled product as soon as possible TECHMQUE ' DIVERSION...Wbere other means are unavailable,floating slicks may be temporarily herded, diverted,or controlled using water hose streams,small boat propeller wash or chemical surface tenum modifiers known as spill herders. ' CONSEQUENCE Hose streama and propeller washes have bmrted appbcabihty and effectiveness.The latter may cause undesired mrnng of spilled product acid water dire to extreme agitation. Chemical spill herders should not be used until approval is obtained firum authorised environmental of wwls. MITIGATION Use other means if available.