USS MISSISSINEWA (AO 59) Oil Offloading Operations Ulithi Atoll, FSM February 2003.
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Transcript of USS MISSISSINEWA (AO 59) Oil Offloading Operations Ulithi Atoll, FSM February 2003.
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USS MISSISSINEWA (AO 59) Oil Offloading Operations
Ulithi Atoll, FSMFebruary 2003
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NAVSEA SUPSALV MissionNAVSEA SUPSALV Mission
Responsible for technical support to Fleet in areas of:Responsible for technical support to Fleet in areas of:
• Marine SalvageMarine Salvage
• DivingDiving
• Underwater Search & RecoveryUnderwater Search & Recovery
• Offshore Oil Spill ResponseOffshore Oil Spill Response
• Underwater Ship HusbandryUnderwater Ship Husbandry
Maintains salvage contracts to augment Fleet capabilityMaintains salvage contracts to augment Fleet capability
Maintains ESSM System (pre-positioned emergency Maintains ESSM System (pre-positioned emergency ship salvage and pollution response material)ship salvage and pollution response material)
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ESSM Gear in ESSM Gear in actionaction
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• November 20, 1944
• 63 U.S. personnel lost
• 3,780,000 gallons of oil on board at sinking
• Sunk in 130 feet
Sinking of the Mississinewa
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Ulithi Atoll
USS Mississinewa at Ulithi AtollUSS Mississinewa at Ulithi AtollYap State, Federated States of MicronesiaYap State, Federated States of Micronesia
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Recent History
• Wreck located April 2001Wreck located April 2001
• Oil reported leaking, August 2001 YAP, FSM & USCG / Oil reported leaking, August 2001 YAP, FSM & USCG / NOAA SurveyNOAA Survey
• First Navy Response – Patch & Pump (Aug 2001)First Navy Response – Patch & Pump (Aug 2001)
• Second Leak & Response (Dec-Jan 2001)Second Leak & Response (Dec-Jan 2001)
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Need for Additional Response Need for Additional Response (Offloading)(Offloading)
• Risk of Continued Intermittent Oil LeaksRisk of Continued Intermittent Oil Leaks• Risk of Future Catastrophic Oil ReleaseRisk of Future Catastrophic Oil Release
• Wreck’s 22 tanks contained estimated 2.8 M gallons of oilWreck’s 22 tanks contained estimated 2.8 M gallons of oil
• Proximity to Pristine Subsistence Fishing GroundsProximity to Pristine Subsistence Fishing Grounds• Sea Turtles, Marine Birds, Intertidal and Subtidal HabitatsSea Turtles, Marine Birds, Intertidal and Subtidal Habitats
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Offloading Plan • Oil Removal - Through the hull – “Hot Tap” Equipment
• Surface-supplied (air) Diving
• Proven Tools and Equipment
• Aggressive Search for Oil
• Personnel Safety
• Environmental Safety
Hot Tap SystemHot Tap System
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Logistics – Getting to the siteLogistics – Getting to the site
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Operational Criteria
• Independent vessel-based operation (no facilities ashore)
• Need to remain on-station until completion • Minimize pollution risk• Remove all pumpable oil in accessible tanks• Proper disposal of oil and all wastes
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Pumping Arrangement – Option One
““Donut Pump”Donut Pump”
Sampling & Monitoring Station
Manifold
Hot Tap Valves
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Resources• Vessels
• USS Salvor (ARS 52) – Navy diving support platform
• Primary support barge & tug
• Additional barge and tug
• Personnel – Salvor, MDSU, EODMU, SUPSALV & contractors
• Equipment - supplied by ESSM (hot taps, pumps, etc.)
• Diving - surface-supplied; recompression chamber; communications (Salvor, MDSU, & EOD MU 5)
• Pollution response equipment (ESSM)
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Response Vessel - Barge Fels 20 loaded with ESSM salvage and oil recovery gear
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Oil Spill Mitigation
• Spill Response Plan
• Containment
• Oil Recovery
• Dispersant Plan
• Wildlife Plan
• Storage & Disposal
V-Boom Skimming System
Dispersant Spray System
Dispersant PackageDispersant Package
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Installing the 6-point moorInstalling the 6-point moor
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Vessels Operational ConfigurationVessels Operational Configuration
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Diver training to use Hot-Tap Diver training to use Hot-Tap pumping system - Honolulupumping system - Honolulu
Divers topside – Ulithi during operationDivers topside – Ulithi during operation
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Underwater Underwater OperationsOperations
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Pumps
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Pumping Operations
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• Installed 20 Hot Taps & Secured with Caps after Pumping
• Cut Access into Two Tanks for Internal Tank Access (& Secured)
• Removed All Accessible Oil from 21 Tanks, Engine Room, Pump Removed All Accessible Oil from 21 Tanks, Engine Room, Pump Room, and Previously-Leaking PipingRoom, and Previously-Leaking Piping
• Transferred Approximately 1.95 Million Gallons of Oil from Transferred Approximately 1.95 Million Gallons of Oil from Mississinewa to Barge, including approximately 7% Free WaterMississinewa to Barge, including approximately 7% Free Water
• Successfully completed ahead of scheduleSuccessfully completed ahead of schedule
• Est. less than Est. less than 5 gallons5 gallons of Oil Released – No Environmental Impact of Oil Released – No Environmental Impact
• Mississinewa Oil to be Sold in Singapore and RecycledMississinewa Oil to be Sold in Singapore and Recycled
Operational SummaryOperational Summary