ENLINK PROCESSING SERVICES, LLC — Notice of Amendment

party submissionOfficial PDF42026006NOA_Operator Response to Notice_03122026_(24-296983).pdf#

42026006NOA_Notice of Amendment_02112026_(24-296983)_text.pdf, page 1Official PDFU.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration 8701 S. Gessner, Suite 630 Houston TX 77074 NOTICE OF AMENDMENT VIA ELECTRONIC MAIL TO: randy.lentz@oneok.com February 11, 2026 Randy Lentz Executive Vice President and Chief Operating Officer Enlink Processing Services, LLC 100 West Fifth Street Tulsa, OK 74103 CPF 4-2026-006-NOA Dear Mr. Lentz: From July 9 to November 10, 2024, a representative of the Pipeline and Hazardous Materials Safety Administration (PHMSA), Office of Pipeline Safety (OPS), pursuant to Chapter 601 of 49 United States Code (U.S.C.), inspected Enlink Processing Services, LLC’s (Enlink) operations and maintenance procedures. As a result of the inspection, PHMSA has identified the apparent inadequacies found within Enlink’s plans or procedures. The items inspected and the inadequacies are described below: 1. § 195.402 Procedural manual for operations, maintenance, and emergencies. (a) . . . . (c) Maintenance and normal operations. The manual required by paragraph (a) of this section must include procedures for the following to provide safety during maintenance and normal operations: (1) . . . . (15) Implementing the applicable control room management procedures required by § 195.446.#

42026006NOA_Notice of Amendment_02112026_(24-296983)_text.pdf, page 2§ 195.446 Control room management. (a) . . . . (c) Provide adequate information. Each operator must provide its controllers with the information, tools, processes and procedures necessary for the controllers to carry out the roles and responsibilities the operator has defined by performing each of the following: (1) . . . . (3) Test and verify an internal communication plan to provide adequate means for manual operation of the pipeline safely, at least once each calendar year, but at intervals not to exceed 15 months; Enlink’s written procedures were inadequate to provide for the safe operation of a pipeline facility in accordance with § 195.402(c)(15). Specifically, Enlink’s Pipeline Internal Communications Plan (05/25/2022) (ICP) failed to include adequate procedures to test and verify an internal communication plan to provide adequate means for manual operation of the pipeline safely, at least once each calendar year, but at intervals not to exceed 15 months in accordance with § 195.446(c)(3). Enlink’s ICP also fails to give adequate guidance on operating a pipeline facility during a SCADA outage. Therefore, PHMSA proposes that Enlink must revise its ICP to include procedures to test and verify an internal communication plan to provide adequate means for manual operation of the pipeline safely, at least once each calendar year, but at intervals not to exceed 15 months, and include adequate guidance on operating a pipeline facility during a SCADA outage. 2. § 195.452 Pipeline integrity management in high consequence areas. (a) . . . . (b) What program and practices must operators use to manage pipeline integrity? Each operator of a pipeline covered by this section must: (1) Develop a written integrity management program that addresses the risks on each segment of pipeline in the first column of the following table no later than the date in the second column: (c) . . . . (i) What preventive and mitigative measures must an operator take to protect the high consequence area? (1) . . . . (3) Leak detection. An operator must have a means to detect leaks on its pipeline system. An operator must evaluate the capability of its leak detection means and modify, as necessary, to protect the high consequence area. An operator’s evaluation must, at least, consider, the following factors—length and size of the pipeline, type of product carried, the pipeline’s proximity to the high consequence area, the swiftness of leak detection, location of nearest response personnel, leak history, and risk assessment results. 2#

42026006NOA_Notice of Amendment_02112026_(24-296983)_text.pdf, page 3Enlink’s written procedures were inadequate to provide for the safe operation of a pipeline facility in accordance with § 195.452(i)(3). Specifically, Enlink’s Hazardous Liquid Integrity Management Plan, V-6.0, section 8.9 (12/08/2023) (HL IMP) lacks sufficient detail to evaluate the capability of its leak detection means and to modify as necessary to protect the high consequence area. Section 8.9 merely references the regulation and states that Form 107 will provide more details without explaining how its process considers all of the required factors in § 195.452(i)(3), as well as other relevant factors. Therefore, PHMSA proposes that Enlink must revise its HL IMP to include how its leak detection evaluation process considers all of the required factors in § 195.452(i)(3). Response to this Notice This Notice is provided pursuant to 49 U.S.C. § 60108(a) and 49 C.F.R. § 190.206. Enclosed as part of this Notice is a document entitled Response Options for Pipeline Operators in Enforcement Proceedings. Please refer to this document and note the response options. 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). Following the receipt of this Notice, you have 30 days to submit written comments, revised procedures, or a request for a hearing under § 190.211. If you do not respond within 30 days of receipt of this Notice, this constitutes a waiver of your right to contest the allegations in this Notice and authorizes the Associate Administrator for Pipeline Safety to find facts as alleged in this Notice without further notice to you and to issue an Order Directing Amendment. If your plans or procedures are found inadequate as alleged in this Notice, you may be ordered to amend your plans or procedures to correct the inadequacies (49 C.F.R. § 190.206). If you are not contesting this Notice, we propose that you submit your amended procedures to my office within 30 days of receipt of this Notice. This period may be extended by written request for good cause. Once the inadequacies identified herein have been addressed in your amended procedures, this enforcement action will be closed. It is requested (not mandated) that Enlink maintain documentation of the safety improvement costs associated with fulfilling this Notice of Amendment (preparation/revision of plans, procedures) and submit the total to Bryan Lethcoe, Director, Southwest Region, Pipeline and Hazardous Materials Safety Administration. In correspondence concerning this matter, please refer to CPF 4- 2026-006-NOA and, for each document you submit, please provide a copy in electronic format whenever possible. 3#

42026006NOA_Notice of Amendment_02112026_(24-296983)_text.pdf, page 4Sincerely, Bryan Lethcoe Director, Southwest Region, Office of Pipeline Safety Pipeline and Hazardous Materials Safety Administration cc: Scott Schingen, SVP, Engineering and Operations, Enlink Processing Services LLC, scott.schingen@oneok.com Andreu Vivas-Hunt, Sr. Manager Asset Integrity, Enlink Processing Services LLC, andreu.vivas-hunt@oneok.com Enclosure: Response Options for Pipeline Operators in Enforcement Proceedings 4#