Leaking Flowline; West Delta 28, LA
NOAA initial notification: “At approximately 7:30 PM on 22 April 2009, USCG Sector NOLA contacted the SSC requesting a trajectory in regards to a 4" leaking flowline in West Delta 28. There is currently a 5 mile by 1.5 mile light brown sheen extending to the NE from 29°8.033'N 089°43.2'W at the point where […]”[1]
Latest included source report
Posted 24 Apr 2009
Latest source report
“After a repeated overflight, the barely discernable sheen turned out to be approximately 5 miles by 150 feet on 23 April 2009. The source turned out to be a 26" natural gas line that was put out of service about 3 months ago. Apparently the line still has some pressure and built up residual. The line ties into the Venice, LA gathering station which is owned by Targa Resources […]” Current outcome is not independently verified by seahazards.[3]
NOAA report chronology
3 dated source records · 22 Apr 2009 to 24 Apr 2009NOAA incident record opened
Initial notification excerpt: “At approximately 7:30 PM on 22 April 2009, USCG Sector NOLA contacted the SSC requesting a trajectory in regards to a 4" leaking flowline in West Delta 28. There is currently a 5 mile by 1.5 mile light brown sheen extending to the NE from 29°8.033'N 089°43.2'W at the point where it is bubbling. There are two possible RP's being contacted to attempt to shut down the line. An overflight is attempting to get more information before dark.”
NOAA approximate incident area; not a vessel track
Initial incident area only. Dates are NOAA postings, not a vessel track. Playback advances every 5 seconds.
Milestone 1 of 3: 22 Apr 2009. NOAA incident record opened. NOAA approximate incident area; not a vessel track
NOAA incident record opened
Initial notification excerpt: “At approximately 7:30 PM on 22 April 2009, USCG Sector NOLA contacted the SSC requesting a trajectory in regards to a 4" leaking flowline in West Delta 28. There is currently a 5 mile by 1.5 mile light brown sheen extending to the NE from 29°8.033'N 089°43.2'W at the point where it is bubbling. There are two possible RP's being contacted to attempt to shut down the line. An overflight is attempting to get more information before dark.”
NOAA approximate incident area; not a vessel track (29.134°, -89.720°)
Update 23April 2009
Source report excerpt: “The USCG conducted an overflight this morning. No photos or update has been provided yet. The responsible party has not yet been identified. The USCG thinks this may be a natural gas line. No additional assistance has been requested at this time. Further updates to follow.”
Final Report
Source report excerpt: “After a repeated overflight, the barely discernable sheen turned out to be approximately 5 miles by 150 feet on 23 April 2009. The source turned out to be a 26" natural gas line that was put out of service about 3 months ago. Apparently the line still has some pressure and built up residual. The line ties into the Venice, LA gathering station which is owned by Targa Resources and operated by Chevron. Some time today Chevron will be sending down divers to assess and hopefully secure the source. There have been no further requests from the USCG.”
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Details in the record
- Source record
- NOAA IncidentNews 8011[1]
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NOAAORR-8011 NOAA response record
Leaking Flowline; West Delta 28, LA. West Delta 28, LA. 1. At approximately 7:30 PM on 22 April 2009, USCG Sector NOLA contacted the SSC requesting a trajectory in regards to a 4" leaking flowline in West Delta 28. There is currently a 5 mile by 1.5 mile light brown sheen extending to the NE from 29°8.033'N 089°43.2'W at the point where it is bubbling. There are two possible RP's being contacted to attempt to shut down the line. An overflight is attempting to get more information before dark. 2. THREAT: OIL. TAGS: PIPELINE. 3. POSITION 29.134N 089.720W. NOAA INCIDENTNEWS 8011: https://incidentnews.noaa.gov/incident/8011Open record and warning history →
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