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MSRC DISPERSANT PROGRAM. Presented by MSRC September 14, 2011 Spill Response Countermeasures Workgroup. MSRC Dispersant Program:. Operational Considerations The Recon/Spot/Spray Cycle Preliminary Observations
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MSRC DISPERSANT PROGRAM Presented by MSRC September 14, 2011 Spill Response Countermeasures Workgroup
MSRC Dispersant Program: • Operational Considerations • The Recon/Spot/Spray Cycle • Preliminary Observations • We will NOT be discussing FOSC application, permitting, deep water application or legal issues surrounding dispersants • How do dispersants work: • Why use them? • Pros & Cons • Weather window • Encounter rate • MSRC Capabilities • Preliminary Observations
How do Dispersants Work? A: Dispersant droplets containing surfactants are sprayed onto the oil. B: The solvent carries the surfactant into the oil. C: The surfactant molecules migrate to the oil/water interface and reduce surface tension, allowing D: small oil droplets to break away from the slick. E: The droplets disperse by turbulent mixing, leaving only sheen on the water surface Key Concept: You need modest sea energy to “agitate” the oil/dispersant interface to effect dispersion. Source: ITOPF
Advantages & Disadvantages of Using Dispersants Some ADVANTAGES • Removing oil from the surface keeps it from reaching shoreline • Is often the quickest response method • Can be used in strong currents and higher sea states • Reduces possibility of sea bird and mammal contamination • Inhibits formation of emulsions • Increases surface area of oil available for natural degradation Some DISADVANTAGES • May adversely affect some marine organisms that would not otherwise be reached by oil • If dispersion is not achieved, may decrease the effectiveness of other methods • Not effective on all types of oil under all conditions • If used on shore, may increase penetration of oil into sediments • Adds additional extraneous sub- stances into the marine environment7 • Limited time window for use Reference: IMO/UNEP Guidelines on Oil Spill Dispersant Application, 1995 edition, IMO, London, 1995.
MSRC DISPERSANT PROGRAMAerial Dispersant Fleet BE90 King Air • C-130 Hercules
Dynamic Aviation, Inc. • 4 x King Air BE-90 • Home base: Kiln, MS; Salisbury, MD; San Juan, PR; and Concord, CA • Twin engine turboprop • FAA certified • operated with pilot and co-pilot • Serves as spray aircrafts • Payload: (~425 gallons max.) • Can serve as spotter/observer aircraft • Planning Assumptions: • Transit speed: 185 knots
International Air Response, Inc. • 2 x C-130 • FAA certified • 4 engine turboprop • Home base: Mesa, AZ and Stennis, MS • Payload: ~3,250-4,000 gallons • Planning Assumptions • Transit speed: 298 knots • Approximate Transit Times (hrs) • - Puerto Rico ~ 5 • - New York, NY ~ 3.5 • - New Orleans, LA ~ .5 • - Long Beach, CA ~ 1.5 • - Seattle, WA ~ 3.5 Spray Boom/Nozzles Tank and pump system
GOM Base of Operations Stennis International Airport (KHSA) Kiln, MS Stennis Airport (KHSA) Stennis Office Trailer • Proximate to GOM “oil Patch” • Low volume, non-TSA facility • Can safely accommodate C-130 & cargo jet aircraft • C-130 repair facility on site
MSRC DISPERSANT PROGRAM Dispersant Logistics • Stockpiles Containerized • Dispersant Inventory: • COREXIT 9527: 1,500 gals • COREXIT 9500: ~103,000 gals • TOTAL: ~104,500 gals
Dispersant Ops: Call Out Process MSRC Call Out: 800-OIL-SPIL 800-259-6772 732-417-0175 Back-Up: 703-326-5609 Customer RP or QI MSRC Answering Service MSRC RM Customer SMT / QI Dispersant Program Duty Officer Verbal followed in writing IAR/Dynamic Consultants and Contractors Legend Activation Communications Response Communications
Dispersant Response Ops Considerations: VFR • Scenario: • Collision: offshore New York Harbor • Time of MSRC Notification: 0001 hours
New Regulations Effective • Effective 8-22-2011 The USCG “CAPS”** Regulations became effective. • What that means is more dispersant planes in more places for quicker response times. Additional King Airs have been located in the following locations. • Salisbury, Maryland • San Juan, Puerto Rico • Concord, California ** caps= USCG Capability Limit on dispersants 33 CFR parts 154 and 155
Pre-Approved Areas Source: USCG Website; 3/01/10
Stennis Airbase Dispersant Accomplishments: • 801,575 gallons of dispersant applied • 877 Individual flights (All without incident) • 90-days of Continuous Operations • 61-days of Spray Operations • 14 aircraft (8 spray aircraft, 6 spotters) • 288 Spray Sorties • 520 Spotter Sorties • 57 Flights supporting SMART/SSM • 130 Aerial Dispersant Team members under MSRC management
Operational Zones: Core for Aircraft Separation & Safe Operations Source: DWH After Action Report, Feb 9, 2011
Aerial Application Technique Staging Airport - Pilot Briefing (45 min) - Re-Fueling - Dispersant Loading Taxi & Take-off Land & Taxi Transit to/from staging airport Observer/Monitor/Tracking Check-in with Spotter (10 min) Return Leg U-Turn U-Turn Departure Distance Approach Distance Spray Pass Length
The End Questions?