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Action Memo Date: |
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Response Authority: |
CERCLA |
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Response Type: |
Emergency |
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Response Lead: |
EPA |
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Incident Category: |
Removal Assessment |
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NPL Status: |
Non NPL |
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Operable Unit: |
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Mobilization Date: |
5/21/2013 |
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Start Date: |
5/21/2013 |
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Demob Date: |
5/21/2013 |
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Completion Date: |
5/22/2013 |
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1.1.2 Site Description
ExxonMobil Chemical Company
1.1.2.1 Location
4999 Scenic Highway, Baton Rouge, LA
1.1.2.2 Description of Threat
At approximately 1730 on May 21, the National Response Center notified EPA Region 6 that Exxon Chemical is flaring multiple chemicals due to a compressor trip. OSC Mason spoke to Exxon, who indicated the flaring may continue through the night. The unit should be up and running by morning. Exxon initiated fence-line monitoring, as well as monitoring in the community to ensure no off-site impacts. LDEQ will also be out in the neighborhood to ensure no impacts. OSC Mason has activated the START – Baton Rouge to conduct hand-held air monitoring in the neighborhood. The following chemicals are being flared, as reported by Exxon:
BUTADIENE
BENZENE
ETHYLENE
HYDROGEN SULFIDE
ISOPRENE
NITROGEN OXIDE
SULFUR DIOXIDE
TOLUENE
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2.1.1 Narrative
EPA START Team members arrived at the incident scene at 2000 hours on 21 May 2013. Weather conditions were 81o F, 70% humidity with winds from the south at 10 mph. Upon arrival the Louisiana Department of Environmental Quality (LDEQ) had completed perimeter air monitoring activities and had departed the scene. LDEQ representative Peter Rica informed EPA START that perimeter air monitoring was conducted at twelve locations adjacent to the Exxon Chemical Refinery. The air monitoring locations were:
- 2748 Lupine Ave.
- 2624 Arbutus Ave.
- 1005 Seneca St.
- The corner of Larkspur Ave. and Chippewa St.
- 1502 Chippewa St.
- The corner of Pocahontas St. and Erie St.
- The corner of Calumet St. and Pocahontas St.
- The corner of Scenic Hwy and Galvez St.
- The corner of Scenic Hwy and Harold St. (Allen Chapel AME Church)
- GSU Rd. , Exxon Chemical Lot C
- GSU Rd., across from Tank No. 174
- GSU Rd (west end), Railroad tracks at Entergy Station.
LDEQ utilized an MSA Sirus 5-gas detector to monitor for percent oxygen, hydrogen sulfide, carbon monoxide, lower explosive limit (LEL) and volatile organic compounds (VOCs). All LDEQ air monitoring reading were non-detect with the exception of location number 9, which exhibited elevated readings of percent oxygen (21.2%).
EPA START Team members were tasked to continue perimeter air monitoring activities in support of LDEQ. At 2000 hours, secondary air monitoring activities at the LDEQ locations was initiated. EPA START utilized a MultiRae 5-gas detector to monitor for percent oxygen, hydrogen sulfide, carbon monoxide, LEL and VOCs. EPA START also used a TVA-1000 (fid detector) as well as a sulfur dioxide single gas monitor. In addition to the twelve LDEQ locations, EPA START also conducted perimeter air monitoring at:
- The corner of Shada Ave. and Rawlins St. (north of Exxon Chemical)
All air monitoring readings were non-detect. EPA START contacted the EPA On-scene coordinator at 2135 hours and provided an update of air monitoring results. EPA START was subsequently released from the site.
2.1.4 Progress Metrics
| Waste Stream |
Medium |
Quantity |
Manifest # |
Treatment |
Disposal |
| Benzene |
Air |
10 lbs |
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| Hydrogen Sulfide |
Air |
100 lbs |
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