U.S. Navy Ship Salvage Manual Volume 6 - Oil Spill Response

S0300-A6-MAN-060Figure 5-20. Waste Oil Rafts (Donuts).chance of oil spillage from a closed-bottom donut. Both donuts are effective for decanting oilwatermixtures.SWOBs are intended to collect ship-generated oily wastes but are excellent receivers for skimmer-recoveredoil. The barges can handle more oil at a much higher flow rate than donuts can.These nonself-propelled barges can be towed to the skimmer or rigged astern of the skimmer. Theonboard pumping systems are for offloading product only. Portable vacuum pump systems can bedeployed to offload skimmers or to suck up oil directly.5-5 COMMERCIAL SYSTEMSWhen the local Navy On-scene Coordinator assists salvors in combating an oil spill, significantadditional oil containment and recovery resources become available. Through the DOD memberof the Regional Response Team, the NOSC has access to commercial cooperatives through existingcontracts or memorandums of understanding. If there is a specific requirement for equipmentnot held by U.S. Navy NOSCDRs assisting in the spill, the NOSC can request that equipmentfrom other members of the RRT. Inventories of available commercial assets are not readily availableto salvors but are an integral part of shoreside and Fleet NOSC/NOSCDR contingency plans.Commercial assets from various sources include state-of-the-art oil skimmers, support equipmentand highly qualified personnel. Some commercial skimmers are much larger than Navy skimmersand have multiple skimming capabilities. Their size, up to 150 feet long, permits operations inhigher sea states in the open ocean. Many cooperatives have been formed in the port cities of theU.S. and in foreign countries. Requesting their assistance is prudent when large amounts of skimmingequipment is needed early in a spill response to prevent oil from fouling the shore.5-26