# CORPUS CHRISTI LIQUEFACTION, LLC — Warning Letter **Citation:** CPF 420173004W **Type / status:** enforcement / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective:** Not stated **Published:** 2017-04-10 CLOSED warning letter citing 193.2301. ## Document text Warning Letter involving CORPUS CHRISTI LIQUEFACTION, LLC. PHMSA's enforcement data identifies the cited regulation as 193.2301. The case was opened on 2017-04-10 and is reported as closed as of 2017-04-10. Open the official case record for notices, responses, orders, and the latest status. Official case documents: 420173004W_Operator Response to Notice_06012017.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420173004W/420173004W_Operator%20Response%20to%20Notice_06012017.pdf 420173004W_Warning Letter_04102017.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420173004W/420173004W_Warning%20Letter_04102017.pdf 420173004W_Warning Letter_04102017_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420173004W/420173004W_Warning%20Letter_04102017_text.pdf 420173004W_Warning Letter_04102017_text.pdf WARNING LETTER CERTIFIED MAIL - RETURN RECEIPT REQUESTED April 10, 2017 Mr. Doug Shanda Senior Vice President, Terminal Operations Corpus Christi Liquefaction, LLC 700 Milam Street Houston, TX 77002 CPF 4-2017-3004W Dear Mr. Doug Shanda: From January 3, 2017 to January 5, 2017, representatives of the Pipeline and Hazardous Materials Safety Administration (PHMSA) pursuant to Chapter 601 of 49 United States Code inspected your Corpus Christi Liquefaction (CCL) construction project in Corpus Christi, TX. As a result of the inspection, it is alleged 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. §193.2301 Scope. Each LNG facility constructed after March 31, 2000 must comply with requirements of this part and of NFPA-59A-2001 (incorporated by reference see §193.2013). In the event of a conflict between this part and NFPA 59A, this part prevails. NFPA-59A-2001 6.3.4 Welding. 6.3.4.1 Qualification and performance of welders shall be in accordance with Section 328.2 of ASME B 31.3, Process Piping, and 6.3.4.2 of this standard. ASME B 31.3 Section 328.2 328.2 Welding and Brazing Qualification Welding and brazing procedure specifications (WPSs and BPSs) to be followed in production welding shall be prepared and qualified, and welders, brazers, and operators shall be qualified as required by the ASME BPV Code, Section IX except as modified by para. 333 for brazing of Category D Fluid Service piping and by the following subparagraphs. ASME BPV Code, Section IX QW-301.2 Qualification Tests. Each manufacturer or contractor shall qualify each welder or welding operator for each welding process to be used in production welding. The performance qualification test shall be welded in accordance with qualified Welding Procedure Specification1 (WPS), or Standard Welding Procedure Specifications (SWPS) listed in Appendix E, except that when performance qualification is done in accordance with a WPS or SWPS that requires a preheat or postweld heat treatment, these may be omitted. QW-401.3 Supplementary Essential Variable2 (Procedure). A change in a welding condition which will affect the notch- toughness properties of a weldment (for example, change in welding process, uphill or down vertical welding, heat input, preheat or PWHT, etc.). Supplementary essential variables are in addition to the essential variables for each welding process. QW-409 Electrical Characteristics QW-409.1 An increase in heat input, or an increase in volume of weld metal deposited per unit length of weld, over that qualified. The increase may be determined by either of the following: (a) Heat input [J/in. (J/mm)] = Voltage x Amperage x 60 Travel Speed [in./min (mm/min)] 1ASME BPV Code, Section IX Article QW200.1(a) defines a WPS to be a written qualified welding procedure prepared to provide making production welds. 2ASME BPV Code, Section IX Article QW200.1(b) a completed WPS shall contain all of the essential, nonessential, and, when required, supplementary essential variables for each welding process used in the WPS. 2 CCL failed to adequately conduct welder qualifications as required by ASME BPV Code, Section IX, Article QW-301.2 Qualification Tests, incorporated by reference. The essential and supplementary essential welding variables for gas tungsten arc welding are specified in Article QW-256 of ASME BPV Code, Section IX3. Heat Input is a supplementary essential variable specified by the WPS and described in paragraph QW-409.1 for the Operator to ensure that the welder qualification tests were welding to the WPS heat input requirements, as mentioned. This is accomplished using voltage, amperage, and the travel speed formula. In order to confirm the welds had the correct heat input per the welding procedures, voltage and travel speed must be taken during the welder testing process. On January 4, 2017, PHMSA inspectors observed the inadequate inspection of the voltage and travel speed and requested a copy of the testing records to confirm that heat input paramters were not inspected to ensure compliance. On February 13, 2017, PHMSA received these records including the “Welder Qualification Request” along with “Welder Performance Qualification Test Record (WR-1)” which confirmed that supplementary essential variables were not inspected. CCL failed to adequately conduct welder qualifications as required by ASME BPV Code, Section IX, incorporated by reference. CCL did not ensure that the supplementary essential variable of heat input was followed during the welder qualification process. Under 49 United States Code, § 60122, you are subject to a civil penalty not to exceed $205,638 per violation per day the violation persists up to a maximum of $2,056,380 for a related series of violations. For violation occurring between January 4, 2012 to August 1, 2016, the maximum penalty may not exceed $200,000 per violation per day, with a maximum penalty not to exceed $2,000,000 for a related series of violations. For violations occurring prior to January 4, 2012, the maximum penalty may not exceed $100,000 per violation per day, with a maximum penalty not to exceed $1,000,000 for a related series of violations. Also, for LNG facilities, an additional penalty of not more than $50,000 for each violation may be imposed. 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. We advise you to correct the item(s) identified in this letter. Failure to do so will result in Corpus Christi Liquefaction, LLC being subject to additional enforcement action. 3 Article QW-256 of ASME BPV Code, Section IX describes the welding variables procedure specificaitons for gas tungsten arc welding. Heat input is a supplementary essential variable required in the welding procedure.3 No reply to this letter is required. If you choose to reply, in your correspondence please refer to CPF 4-2017-3004W. 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 4 ## Provenance - Official: Yes - Source: - Source ID: `phmsa-enforcement` - SHA-256: `d102b1c92f6ff06207263ace06fddd222b0df137be5bdf2bc4fc3af2ab5c4ccc` - Retrieved: 2026-08-20T04:44:44.458Z - Exported: 2026-08-24T21:05:14.316Z - Document slug: `phmsa-enforcement-420173004w` ### Source metadata ```json { "cpf": "420173004W", "operator": "CORPUS CHRISTI LIQUEFACTION, LLC", "region": "Southwest", "pipelineType": "INTERSTATE LNG ONSHORE", "caseStatus": "CLOSED", "citedSections": [ "193.2301" ], "dataAsOf": "08/04/2026 12PM", "caseDataAsOf": "2026-08-04", "attachmentCount": 3, "attachments": [ { "name": "420173004W_Operator Response to Notice_06012017.pdf", "url": "https://primis.phmsa.dot.gov/enforcement-documents/420173004W/420173004W_Operator%20Response%20to%20Notice_06012017.pdf", "bytes": 44944, "category": "party_submission" }, { "name": "420173004W_Warning Letter_04102017.pdf", "url": "https://primis.phmsa.dot.gov/enforcement-documents/420173004W/420173004W_Warning%20Letter_04102017.pdf", "bytes": 59119, "category": "agency_document" }, { "name": "420173004W_Warning Letter_04102017_text.pdf", "url": "https://primis.phmsa.dot.gov/enforcement-documents/420173004W/420173004W_Warning%20Letter_04102017_text.pdf", "bytes": 91328, "category": "agency_document" } ], "extractedAgencyDocumentCount": 1, "attachmentPolicy": "Official attachment links are retained. Agency-issued documents may also include a verified local PDF and page-level text representation.", "jurisdiction": "US", "operatorName": "CORPUS CHRISTI LIQUEFACTION, LLC" } ```