GULF SOUTH PIPELINE COMPANY, LLC — Warning Letter

420151010W_Warning_10132015_text.pdf, page 1Official PDFWARNING LETTER CERTIFIED MAIL - RETURN RECEIPT REQUESTED October 13, 2015 Mr. Richard Keyser Senior Vice President of Operations Gulf South Pipeline Company, LP 9 Greenway Plaza, Suite 2800 Houston, Texas 77046 CPF 4-2015-1010W Dear Mr. Keyser: Between January 12, 2015 and August 28, 2015, a representative of the Pipeline and Hazardous Materials Safety Administration (PHMSA), pursuant to Chapter 601 of 49 United States Code, reviewed Safety Related Condition Report 20150005 submitted January 12, 2015, by Gulf South Pipeline Company, LP (Gulf South) for a safety related incident that occurred in St. Charles Parish, LA. As a result of the review, it appears that you have committed a probable violation of the Pipeline Safety Regulations, Title 49, Code of Federal Regulations. The item inspected and the probable violation is: 1. § 192.619 Maximum allowable operating pressure: Steel or plastic pipelines. (a) No person may operate a segment of steel or plastic pipeline at a pressure that exceeds a maximum allowable operating pressure determined under paragraph (c) or (d) of this section… As indicated in your Safety Related Condition Report, Gulf South experienced an overpressure condition that met the reporting criteria for a safety related condition. On January 8, 2015, a#

420151010W_Warning_10132015_text.pdf, page 2portion of your Baton Rouge to Napoleonville Unit, Index Number 270-65 pipeline was operated at a pressure that exceeded the maximum allowable operating pressure for the line. The established MAOP for the line, at the time of the event and report was 376 PSIG. The MAOP was exceeded when the maximum pressures climbing to 525 PSIG range. The maximum pressures exceeded 110% the MAOP of the line at the time of the event. This event is reflected in the Safety Related Condition Report you filed with PHMSA. We have reviewed the circumstances and supporting documents involved in this case, and have decided not to conduct additional enforcement action or penalty assessment proceedings at this time. No reply to this letter is required. If you choose to reply, in your correspondence please refer to CPF 4-2015-1010W. Be advised that all material you submit in response to this enforcement action is subject to being made publicly available. If you believe that any portion of your responsive material qualifies for confidential treatment under 5 U.S.C. 552(b), along with the complete original document you must provide a second copy of the document with the portions you believe qualify for confidential treatment redacted and an explanation of why you believe the redacted information qualifies for confidential treatment under 5 U.S.C. 552(b). Sincerely, R. M. Seeley Director, Southwest Region Pipeline and Hazardous Materials Safety Administration cc: Jeff McMaine, Manager, Codes & Standards, 3800 Frederica Street, Owensboro, KY 42301 2#