On March 29, 2013 at 2:37 p.m., a 20-inch pipeline ruptured and leaked approximately 5,000 barrels of crude in the town of Mayflower, Ark. The affected line is part of ExxonMobil's Pegasus Pipeline System, which transports crude from Patoka, Ill. To Nederland, Texas.

Status

PHMSA is investigating the cause of the failure. PHMSA's investigation is being led by the Southwest Region, based in Houston, TX, and the entire agency is providing support.

• 10/21/2015 -- ExxonMobil Submits Petition for Reconsideration and Motion to Stay Compliance Order for Pegasus Pipeline
• 10/1/2015 -- PHMSA Completes Investigation of ExxonMobil Pegasus Failure; Issues Final Order and $2.6M Fine
• 3/31/2014 -- PHMSA Approval Letter of Request to Restart Southern Segment of ExxonMobil Pegasus Pipeline
• 3/28/2014 -- ExxonMobil Pegasus Remedial Work Plan: Part I
• 1/31/2014 -- ExxonMobil Request to Restart Southern Segment of Pegasus Pipeline
• 11/6/2013 -- ExxonMobil Pegasus NOPV and Proposed Compliance Order
• 10/8/2013 -- PHMSA Grants ExxonMobil Time Extension to Submit Remedial Work Plan
• 10/3/2013 -- ExxonMobil Requests 90-Day Extension to Submit Remedial Work Plan
• 6/12/2013 -- ExxonMobil Requests Time Extension to Submit Results of Pegasus Metallurgical Analysis
• 6/12/2013 -- PHMSA Grants Time Extension to ExxonMobil for Metallurgical Examination Results
• 5/10/2013 -- Post-Hearing Decision Confirms Corrective Action Order Issued to ExxonMobil Pipeline Company for March 29 Failure in Mayflower, AR
• 4/26/2013 -- Accident Report for 3/29/2013 Mayflower, AR Failure
• ExxonMobil Material Data Safety Sheet on Wabasca Heavy Crude Oil
• 4/2/2013 -- Corrective Action Order Issued to ExxonMobile Pipeline for March 29 Failure in Mayflower, AR

For all other related documents, including previous inspection reports, enforcement actions, and ExxonMobil's Pegasus Facility response plan, please visit the FOIA Electronic Reading Room.  

Federal On Scene Coordinator

U.S. Environmental Protection Agency.
Updates from EPA Region 6
Updates from Arkansas Department of Environmental Quality

Arkansas Pipeline Profile

There are more than 30,000 miles of pipeline in Arkansas. Click here for a profile of Arkansas' pipelines. Each state pipeline profile includes:

• Overview of the purposes of pipelines and the importance of pipeline safety
• Interactive map of pipelines in the area and their operators
• Records of pipeline incidents in the state
• Reports on state inspections and enforcement
• Contact information for PHMSA's Office of Pipeline Safety and regional community assistance and technical services managers

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