USE OF DISPERSANTS - U.S. National Response Team (NRT)

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c. Optimum storage temperature range: 40 F to l00 Fd. Temperatures of phase separations and chemical changes:COREXIT 9527 is not adversely affected by changes in storage temperature unless evaporation is allowed to occur.V. SHELF LIFEThe shelf life of unopened drums of COREXIT 9527 is unlimited. Containers should always be capped when not inuse to prevent contamination and evaporation of solvents.VI. RECOMMENDED APPLICATION PROCEDUREl. Application Method:The usual application methods are by use of aircraft (COREXIT 9527 is applied undiluted during aerial spray), handheldequipment (e.g., spray cans or "back-pack" sprayers) or workboats (fitted with spray booms mounted ahead ofthe bow wake as forward as possible.)COREXIT 9527 should be applied to the floating oil, not to the water around it.When applied from workboats, an eduction system using a portable fire pump, or a fixed fire-fighting system is best.This should operate at about 40-80 psi depending on the requirements of the eductor used, and deliver sea water at arate adequate to maintain the spray pattern from the nozzles at the operating velocity of the vessel without blowingaway before reaching the oil. Alternatively, the chemical can be fed to the sea water stream with a small meteringpump. A treatment rate of about 5 gallons per acre is recommended. The concentration of chemical required mustbe calculated from the pump capacity, the boom swath width, the boat speed, and (possibly) the thickness of theslick or the amount of oil to be treated over a given area. Unless land areas are immediately threatened, neitheragitation nor chemical concentration should necessarily be increased simply to cause rapid disappearance of the oil.Nozzles for spraybooms should produce droplets, not a fog or mist, in a uniform flat spray pattern. Atomizingnozzles are not recommended.2. Concentration/Application Rate:During boat application, using an eductor or metering pump for chemical addition, COREXIT 9527 will usually beadded to the sea water stream to give a concentration of 3% to 10%, depending on the factors given in part 1 of thissection.For slicks formed by more viscous crude or petroleum products, a hydrocarbon based (kerosene or other aliphaticsolvent) dispersant is required. In such a case, one part of COREXIT 9527 may be diluted with 5 or more parts ofsolvent.The required dosage of COREXIT 9527 is usually 3 to 7 gallons per acre, regardless of the method of application.Undiluted dispersant is always used in aerial spraying.3. Conditions for Use:COREXIT 9527 is not recommended for use on spills on fresh water. It can be used most effectively on spills on saltwater of about 1% salt (10,000 ppm salinity) or greater.Water temperature does not affect the dispersant's action, but the effect of very low temperatures (in increasing theviscosity of the oil) could make dispersion more difficult.Weathering of oil can have a negative affect on dispersibility, but the amount of time to reach that point can varywidely from a few days to more than a month depending on climatic conditions.VII. TOXICITY AND EFFECTIVENESS
1. TOXICITY:MATERIAL TESTE SPECIES LC50 (ppm)COREXIT 9527 Fundulus heteroclitus 100 96-hrArtemia salina50 48-hrNo. 2 Fuel Oil Fundulus heteroclitus 4,280 96-hrArtemia salina44,000 48-hrCOREXIT 9527 & Fundulus heteroclitus 36 96-hrNo. 2 Fuel Oil (1:10) Artemia salina 44 48-hr2. EFFECTIVENESSSTANDARD EFFECTIVENESS TEST WITH NO. 6 FUEL OILVOLUME INITIAL (10 min) FINAL (2 hrs)DISPERSANT MEAN % DISPERSION MEAN % DISPERSION10 71 6325 69 60Dosage causing 50% dispersion (from initial dispersion graph) is less than 10 ml.VIII. MICROBIOLOGICAL ANALYSIS (Not Applicable)IX. PHYSICAL PROPERTIES1. Flash Point: 162 F2. Pour Point: Less than -45 F3. Viscosity: 60 cst at 60 F, 22 cst at 100 F, 9 cst at 150 F4. Specific Gravity: 0.995 at 60 F, 0.975 at 100 F5. pH: 8.2 (10% in deionized water)6. Surface Active Agents: CONFIDENTIAL7. Solvents: Water, Ethylene glycol monobutyl ether8. Additives: Borate ester9. Solubility: Not Applicable
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UPDATES AND CHANGESCHANGE OR UPDATE
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CARIBBEAN REGIONAL RESPONSE TEAMPOL
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SECTION IPurposeThis policy provide
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2. YELLOW ZONE - WATERS REQUIRING C
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SECTION IIIProtocolsTHE FOLLOWING R
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APPENDICES
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Caribbean Regional Response TeamDis
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CommanderSeventh Coast Guard Distri
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mile from any reef which is less th
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high exposure levels, volatile hydr
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a few days or weeks, unmetabolized
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1990. Geraci, J.R. and D. J. St. Au
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CommanderSeventh Coast Guard Distri
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Biological Assessment of Effects on
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The dispersed oil droplets, ranging
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Sea TurtlesSea turtles can be expos
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Most aquatic organisms have the abi
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Ernst, C.H., J. Lovich, and R.W. Ba
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Appendix IIIDispersant Use Monitori
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Dispersant Use Monitoring Program w
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APPENDIX IVDispersant Use Decision
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- dispersant composition;- water sa
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For Puerto Rico:1) the waters are n
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DOCUMENTATION/APPLICATION FORM FORD
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2. Type of aircraft used __________
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Letter of AgreementCommonwealth of
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300. SCOPE301. The USCG, USEPA, USD
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debriefing will gather information
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LETTER OF AGREEMENTON LIMITED USE O
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LETTER OF AGREEMENTON LIMITED USE O
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minimize substantial threat to publ
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Appendix VIDispersant Use Operation
Page 82 and 83: APPENDIX VIDispersant Use Operation
Page 84 and 85: APPENDIX VI TABLE OF CONTENTSSECTIO
Page 86 and 87: ICS DISPERSANT USE ORGANIZATIONAL R
Page 88 and 89: DISPERSANT USE DECISION / IMPLEMENT
Page 90 and 91: DISPERSANT APPLICATION PLATFORM CAP
Page 92 and 93: DISPERSANT APPLICATION OPERATIONAL
Page 94 and 95: DISPERSANT OPERATION PLAN CHECKLIST
Page 96 and 97: GENERAL:OBSERVATIONS:PHOTOGRAPHY:In
Page 98 and 99: Incident CommanderOperations Sectio
Page 100 and 101: DISPERSANT / APPLICATION FORM FROM
Page 102 and 103: DISPERSANT / APPLICATION FORM FROM
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Page 106 and 107: • Comply with the dispersant use
Page 108 and 109: • Coordinates and is lead for any
Page 110 and 111: SPRAYER LOG SHEET(Completed by Spra
Page 112 and 113: OBSERVATION AIRCRAFT / VESSEL / "OB
Page 114 and 115: • The visibility of the dispersed
Page 116 and 117: Duration of FlightPreferred Altitud
Page 118 and 119: DISPERSANT OBSERVATION FINAL REPORT
Page 120 and 121: SITE SAFETY PLAN TEMPLATE FOR DISPE
Page 122 and 123: Adequate protection may be achieved
Page 124 and 125: (404)639-0615 (24 hr) (voice) 0655
Page 126 and 127: GENERIC SITE SAFETY PLAN FOR DISPER
Page 128 and 129: • From a safe distance (at least
Page 130 and 131: SAFE APPROACH TO A HELICOPTERAPPROA
Page 134 and 135: X. ANALYSIS FOR HEAVY METALS AND CH
Page 136 and 137: wear long sleeve shirt, chemical re
Page 138 and 139: 8. Solvents: CONFIDENTIAL9. Additiv
Page 140: ___ rubber steel toe/shank safety b
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USE OF DISPERSANTS - U.S. National Response Team (NRT)

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