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 # 796561 INCIDENT DESCRIPTION *Report taken at 09:20 on 09-MAY-06 Incident Type: PLATFORM Incident Cause: OPERATOR ERROR Affected Area: GULF OF MEXICO The incident occurred on 09-MAY-06 at 06:41 local time. Affected Medium: WATER ____________________________________________________________________________ SUSPECTED RESPONSIBLE PARTY Organization: DIAMOND OFFSHORE HOUSTON, TX 77210 Type of Organization: PRIVATE ENTERPRISE ____________________________________________________________________________ INCIDENT LOCATION WALKER RIDGE 544 County: UNKNOWN State: LA PLATFORM INCIDENT ____________________________________________________________________________ RELEASED MATERIAL(S) CHRIS Code: OTH Official Material Name: OTHER OIL Also Known As: SYNTHETIC BASED MUD Qty Released: 213 BARREL(S) Qty in Water: 213 BARREL(S) ________________________________________________________________________ DESCRIPTION OF INCIDENT THE CALLER STATES DURING A TRANSFER THE WRONG VALVE WAS OPENED TO A PRESSURIZED LINE ALLOWING THE RELEASE OF MATERIAL. ____________________________________________________________________________ INCIDENT DETAILS Platform Rig Name: OCEAN CONFIDENCE Platform Letter: Location Area ID: WALKER RIDGE 544 Location Block ID: 544 OCSG Number: 17003 OCSP Number: State Lease Number: Pier Dock Number: Berth Slip Number: ---WATER INFORMATION--- Body of Water: GULF OF MEXICO Tributary of: Nearest River Mile Marker: Water Supply Contaminated: NO ____________________________________________________________________________ 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: UNKNOWN Media Interest: NONE Community Impact due to Material: NO ____________________________________________________________________________ REMEDIAL ACTIONS VALVE WAS SECURED Release Secured: YES Release Rate: Estimated Release Duration: ____________________________________________________________________________ WEATHER Weather: PARTLY CLOUDY, 75ºF Wave Condition: 3 MODERATE (3 - 5 FT) Current speed: 1 Current directi ____________________________________________________________________________ ADDITIONAL AGENCIES NOTIFIED Federal: State/Local: BEP, MNS State/Local On Scene: State Agency Number: ____________________________________________________________________________ NOTIFICATIONS BY NRC USCG HSOC AT DHS (USCG HSOC DESK) 09-MAY-06 09:35 DOT CRISIS MANAGEMENT CENTER (PRIMARY) 09-MAY-06 09:35 USCG FIST NEW ORLEANS (SUPERVISOR, FIST NEW ORLEANS) 09-MAY-06 09:35 LA DEPT OF ENV QUAL (PRIMARY) 09-MAY-06 09:35 LA OFFICE OF EMERGENCY PREPAREDNESS (PRIMARY) 09-MAY-06 09:35 LA OFFICE OF GOV ATTN ROLAND GUIDRY (PRIMARY) 09-MAY-06 09:35 LA OFFICE OF PUBLIC HEALTH (PRIMARY) 09-MAY-06 09:35 MSO MORGAN CITY (PRIMARY) 09-MAY-06 09:36 NATIONAL INFRASTRUCTURE COORD CTR (PRIMARY) 09-MAY-06 09:35 NOAA RPTS FOR LA (PRIMARY) 09-MAY-06 09:35 SECTOR NEW ORLEANS (COMMAND CENTER) 09-MAY-06 09:35 LA STATE POLICE (PRIMARY) 09-MAY-06 09:35 ____________________________________________________________________________ ADDITIONAL INFORMATION NO ADDITIONAL INFORMATION. ___________________________________________________________________________ *** END INCIDENT REPORT # 796561 ***