Harbor of Safe Refuge HOGANSAC Subcommittee Presentation to INTERTANKO NAP Interactive Offshore Model October, 2006

Mission Statement To develop plans, procedures and/or options, consistent with IMO Resolution A.949(23) for conducting a risk assessment and facilitating decision-making when a vessel is in distress and/or seeks safe refuge so as to minimize the overall impact to the vessel and shipboard personnel, the community, the maritime transportation system and the environment in Sector Houston-Galveston.

Harbor of Safe Refuge Subcommittee John Salvesen (Chairman)Odfjell ASA James Prazak (Deputy Chairman)Dow Chemical Richard ArnhartTexas GLO Dr. Buzz MartinTexas GLO Roger Van DuzerMoran Shipping Frank HawthorneUSCG, Sector Houston LT Joe LeonardUSCG, MSU Galveston LTjg Lisa TaylorUSCG, MSU Galveston Jeff KindleClipper-Wonsild CAPT Wally HoganGalveston/TX City Pilots CAPT Tom PaceHouston Pilots CAPT Jim TeeterFreeport Pilots Tom MarianJones Walker Tricia ClarkSkaugen Petrotrans CAPT Rich RussellStolt Parcel Tankers Dr. Brian CainUS Fish and Wildlife Jim IndestTCEQ

Harbor of Safe Refuge (HSR) FIGHT, FLEE, OR STAY IN PLACE Offshore leaking tankers can be : »Lightered in place »Repaired in place »Internally transferred in place -cargo moved to slack tanks (ballast, etc.) »Run beyond the EEZ (Flee) »Seek port entry (Fight to get into a HSR) *Remember some vessels can’t physically get into our ports The HOGANSAC HSR Subcommittee is an ongoing project –Additional types of vessels & scenarios need to be evaluated and modeled

Pollution Sensitivity Each F/F/or Stay option has different critical elements. Usually one or two specific critical elements drive the overall incident duration. The environmental damage will often be directly linked to the HSR decision-making process. Thus, authorities need to continuously assess the impact of the HSR decision on the magnitude of any ongoing pollution. –Once an option is chosen, the leak and overall duration parameters are put into a pollution sensitivity model to give Authorities a better sense of the environmental consequences.

Interactive Pollution Model

What options are available? After required notifications, crew safety issues, and environmental mitigation are addressed, there still remain only 3 options: 1.Can the vessel physically get into port, and if so, what port is best? 2.Could/should the vessel remain offshore or near shore within the EEZ? 3.And… if the decision is to leave the EEZ, where can/should the vessel go?

If a Tanker runs,…. where should it go??

Lightering Areas, Zones and Prohibited Areas

200 EEZ 70 miles 130 Miles

The HSR Decision Model Uses critical path project management techniques to help evaluate real time options. As incident specific resources become available and times (durations) are established, they are inserted into the model. The interactive model then gives overall incident durations. –i.e. If we need to lighter the leaking tanker, the lightering ship won’t arrive for 24 hours and after 6 hours of transfer, the leak will be stopped. ~ 30 hours to stop the leak.

TASK ITEMS - SHIP 70 MILES OFFSHORE LEAKING IN LIGHTERING ZONE

CLASSIFICATION SOCIETY REPORT CRITICAL ITEM OVERALL DURATION = 32 HOURS

CLASS SURVEY REPORT CRITICAL ITEM

LIGHTERING VESSEL CRITICAL ITEM OVERALL DURATION = 48 HOURS

LIGHTERING VESSEL CRITICAL ITEM

SALVAGE SUPPORT CRITIAL ITEM 48 HOURS TO ARRIVE OVERALL DURATION = 60 HOURS

SALVAGE SUPPORT CRITICAL ITEM