TRES PALACIOS GAS STORAGE LLC — Notice of Probable Violation

party submissionOfficial PDF52023054NOPV_Operator Response to Notice_09192023_(23-264167).pdf#

case documentOfficial PDF52023054NOPV_PCO_08212023_(23-264167).pdf#

case documentOfficial PDF52023054NOPV_PCO_08212023_(23-264167)_text.pdf#

52023054NOPV_Closure Letter_03192025_(23-264167)_text.pdf, page 1Official PDFVIA ELECTRONIC MAIL TO: eric.ormond@crestwoodlp.com March 19, 2025 Mr. Eric Ormond Senior VP, Engineering & Project Management Tres Palacios Holdings LLC 811 Main Street, Suite 3400 Houston, TX 77002 CPF 5-2023-054-NOPV Closure Letter Dear Mr. Ormond: On October 17, 2023, the Pipeline and Hazardous Materials Safety Administration (PHMSA) issued Tres Palacios Holding LLC (Tres Palacios) a Final Order in the above-referenced case. This Order included a Compliance Order. Based on our review of the documentation provided by Tres Palacios, it has been determined that you have complied with the terms of this Order. Accordingly, this case is now closed, and no further action is required. Thank you for your cooperation in this matter. Sincerely, Dustin Hubbard Director, Western Region Pipeline and Hazardous Materials Safety Administration cc: PHP-60 Compliance Registry PHP-500 M. Buss (#23-264167) Mr. Peter Seydewitz, Director, Operational Excellence, Tres Palacios Holding LLC - Peter.Seydewitz@enbridge.com#

52023054NOPV_Final Order_10172023_(23-264167)_text.pdf, page 1Official PDFOctober 17, 2023 VIA ELECTRONIC MAIL TO: cynthia.hansen@enbridge.com Ms. Cynthia Hansen Executive Vice President and President Gas Transmission and Midstream Enbridge Inc. 915 North Eldridge Pkwy., Suite 1100 Houston, Texas 77079 Re: CPF No. 5-2023-054-NOPV Dear Ms. Hansen: Enclosed please find the Final Order issued in the above-referenced case to Tres Palacios Holdings LLC, a subsidiary of Enbridge Inc. It makes a finding of violation and specifies actions that need to be taken to comply with the pipeline safety regulations. When the terms of the compliance order are completed, as determined by the Director, Western Region, this enforcement action will be closed. Service of the Final Order by e-mail is effective upon the date of transmission and acknowledgement of receipt as provided under 49 C.F.R. § 190.5. Thank you for your cooperation in this matter. Sincerely, Alan K. Mayberry Associate Administrator for Pipeline Safety Enclosures (Final Order and NOPV) cc: Mr. Dustin Hubbard, Director, Western Region, Office of Pipeline Safety, PHMSA Mr. Eric Ormond, Senior Vice President, Engineering & Project Management, Enbridge Inc. eric.ormond@enbridge.com#

52023054NOPV_Final Order_10172023_(23-264167)_text.pdf, page 3Mr. Peter Seydewitz, Director, Operational Excellence, Enbridge Inc. peter.seydewitz@enbridge.com Mr. Nathan Atanu, Manager, Operational Compliance, Enbridge Inc. nathan.atanu@enbridge.com CONFIRMATION OF RECEIPT REQUESTED#

52023054NOPV_Final Order_10172023_(23-264167)_text.pdf, page 4U.S. DEPARTMENT OF TRANSPORTATION PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION OFFICE OF PIPELINE SAFETY WASHINGTON, D.C. 20590 ____________________________________ ) In the Matter of ) ) Tres Palacios Holdings LLC, ) a subsidiary of Enbridge Inc., ) CPF No. 5-2023-054-NOPV ) Respondent. ) ____________________________________) FINAL ORDER On August 21, 2023, pursuant to 49 C.F.R. § 190.207, the Director, Western Region, Office of Pipeline Safety (OPS), issued a Notice of Probable Violation (Notice) to Tres Palacios Holdings LLC (Respondent).1 The Notice proposed finding that Respondent had violated the pipeline safety regulations in 49 C.F.R. Part 192. The Notice also proposed certain measures to correct the violations. Respondent did not contest the allegations of violation or corrective measures. Based upon a review of all of the evidence, pursuant to § 190.213, I find Respondent violated the pipeline safety regulations listed below, as more fully described in the enclosed Notice, which is incorporated by reference: 49 C.F.R. § 192.917 (b), (c), (e) (Item 1) ─ Respondent failed to adequately gather, integrate, and evaluate potential threats to its pipeline and perform an adequate risk assessment or determine proper preventative and mitigative measures regarding corrosion identified on the pipeline. This finding of violation will be a considered prior offense in any subsequent enforcement action taken against Respondent. Compliance Actions Pursuant to 49 U.S.C. § 60118(b) and 49 C.F.R. § 190.217, Respondent is ordered to take the actions proposed in the enclosed Notice to correct the violation. The Director may grant an extension of time to comply with any of the required items upon a written request timely submitted by the Respondent and demonstrating good cause for an extension. Upon completion of the ordered actions, Respondent may request that the Director close the case. Failure to 1 Tres Palacios Holdings LLC was acquired by Enbridge Inc. on April 3, 2023. Enbridge Inc. and Crestwood Equity Partners, L.P. submitted a response on behalf of Tres Palacios Holdings LLC for the Notice of Proposed Violation.#

52023054NOPV_Final Order_10172023_(23-264167)_text.pdf, page 5comply with this Order may result in the assessment of civil penalties under 49 C.F.R. § 190.223 or in referral to the Attorney General for appropriate relief in a district court of the United States. Warning Items With respect to Items 2, 3, 4 and 5, the Notice alleged probable violations of 49 C.F.R. §§ 192.161, 192.605(a), 192.710(b)(1) and 192.479(b), respectively, but did not propose a civil penalty or compliance order for these items. Therefore, these are considered to be warning items. If OPS finds a violation any of these items in a subsequent inspection, Respondent may be subject to future enforcement action. The terms and conditions of this order are effective upon service in accordance with 49 C.F.R. § 190.5. October 17, 2023 ___________________________________ _________________________ Alan K. Mayberry Date Issued Associate Administrator for Pipeline Safety#