NATIONAL RESPONSE CENTER 1-800-424-8802 *** For Public Use *** Information released to a third party shall comply with any applicable federal and/or state Freedom of Information and Privacy Laws Incident Report # 885454 INCIDENT DESCRIPTION *Report taken at 13:14 on 27-SEP-08

Incident Type: VESSEL

Incident Cause: TRANSPORT ACCIDENT Affected Area: GULF OF MEXICO

The incident was discovered on 27-SEP-08 at 02:50 local time.

Affected Medium: WATER   /GULF OF MEXICO

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SUSPECTED RESPONSIBLE PARTY

Organization:         SEA DRILL AMERICAS

HOUSTON, TX 77041

Type of Organization: PRIVATE ENTERPRISE

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INCIDENT LOCATION

County: MISSISSIPPI CANYON State: LA Latitude: 28 Degrees 2' 0" N

Longitude: 89 Degrees 6' 0" W ** SEE LAT/LONG***

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RELEASED MATERIAL(S)

CHRIS Code: NCC    Official Material Name: NO CHRIS CODE

Also Known As:  SYNTHETIC BASED MUD

Qty Released: 3123 BARREL(S)           Qty in Water: 3123 BARREL(S)

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DESCRIPTION OF INCIDENT

CALLER IS REPORTING THAT SYNTHETIC BASED MUD RELEASED DURING A TRANSFER TO THE  VESSEL SUSPECTED TO  BE DUE TO A TANK VALVE WHICH WAS NOT CLOSED. CALLER ALSO  STATED THAT THERE IS NO VISIBLE SHEEN ON THE WATER.

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INCIDENT DETAILS

Platform Rig Name: Platform Letter: Location Area ID: MISSISSIPPI CANYON Location Block ID: 942 OCSG Number: OCSP Number: State Lease Number: Pier Dock Number: Berth Slip Number:

---SHEEN INFORMATION--- Sheen Color: UNKNOWN Sheen Odor Description: Sheen Travel Direction: Sheen Size Length: Sheen Size Width:

---WATER INFORMATION--- Body of Water: GULF OF MEXICO Tributary of: Nearest River Mile Marker: Water Supply Contaminated: UNKNOWN

---VESSEL INFORMATION--- Name: WEST SIRIUS Number: 8768402 Aground: NO Flag: Length: Breadth: Draught: Type: DRILLING RIG Hull Construction: Fuel Capacity: Fuel on Board: Cargo Capacity: Cargo on Board:

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DAMAGES

Fire Involved: NO   Fire Extinguished: UNKNOWN

INJURIES:

NO

Hospitalized:

Empl/Crew:

Passenger:

FATALITIES:

NO

Empl/Crew:

Passenger:

Occupant:

EVACUATIONS:

NO

Who Evacuated:

Radius/Area:

Damages:

NO

Length of

Direction of

Closure Type

Description of Closure

Closure

Closure

Air:

N

Road:

N

Major  Artery:

N

Waterway:

N

Track:

N

Passengers Transferred: NO

Environmental Impact: NO

Media Interest: NONE  Community Impact due to Material:

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REMEDIAL ACTIONS

SECURED THE SOURCE, WHEN TRANSFER WAS FINISHED NOTICED THE TANK WAS LOSING VOLUME. THE REMAINING MATERIAL WAS TRANSPORTED TO ANOTHER TANK.

Release Secured: YES Release Rate: Estimated Release Duration:

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WEATHER

Weather: CLEAR, ºF    Wind speed: 5  KNTS

Wave Condition: 1     SMOOTH ( < 1 FT)    Current speed: .8

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ADDITIONAL AGENCIES NOTIFIED

Federal:

NONE

State/Local:

NONE

State/Local On Scene:

NONE

State Agency Number:

NO REPORT#

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NOTIFICATIONS BY NRC

VESSEL RESPONSE PLAN PROGRAM (CG-3PCV-1)

27-SEP-08

13:27

USCG HSOC AT DHS (USCG HSOC DESK)

27-SEP-08

13:27

USCG ICC (ICC ONI)

27-SEP-08

13:27

CG INVESTIGATIVE SERVICE HQ (MAIN OFFICE)

27-SEP-08

13:27

DOT CRISIS MANAGEMENT CENTER (MAIN OFFICE)

27-SEP-08

13:27

FLD INTEL SUPPORT TEAM NEW ORLEANS (SUPERVISOR, FIST NEW ORLEANS)

27-SEP-08

13:27

GULF STRIKE TEAM (MAIN OFFICE)

27-SEP-08

13:27

JFO-LA (COMMAND CENTER)

27-SEP-08

13:27

JFO-LA (FEMA JFO LA)

27-SEP-08

13:27

LA DEPT OF ENV QUAL (MAIN OFFICE)

27-SEP-08

13:27

LA OFFICE OF EMERGENCY PREPAREDNESS (MAIN OFFICE)

27-SEP-08

13:27

LA OFFICE OF GOV (MAIN OFFICE)

27-SEP-08

13:27

LA OFFICE OF PUBLIC HEALTH (MAIN OFFICE)

27-SEP-08

13:27

MSU MORGAN CITY (MAIN OFFICE)

27-SEP-08

13:29

NATIONAL INFRASTRUCTURE COORD CTR (MAIN OFFICE)

27-SEP-08

13:27

NOAA RPTS FOR LA (MAIN OFFICE)

27-SEP-08

13:27

LA STATE POLICE (MAIN OFFICE)

27-SEP-08

13:27

TN BUREAU OF INVESTIGATION (TBI)

27-SEP-08

13:27

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ADDITIONAL INFORMATION

CALLER HAD NO ADDITIONAL INFORMATION.

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*** END INCIDENT REPORT #

885454

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