BRAZOS MIDSTREAM OPERATING, LLC — Hazardous liquid gravity and reporting-regulated-only — incident on 2023-01-17

Hazardous liquid gravity and reporting-regulated-only incident in Not Within a Municipality, PECOS County, TX. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 80 CRUDE OIL released, $20,000 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20230029.

Operator ID: 39476.

Reported incident date: 1/17/2023 8:00.

Cause detail: INTERNAL CORROSION

Cause detail: 1/17/23 8:00 LANDOWNER NOTIFIED OPERATOR OF INDICATIONS OF A LEAK. 9:15 PIPELINE TECHNICIAN VERIFIED LOCATION OF LEAK. 9:30 PIPELINE TECHNICIAN NOTIFIED EHS DEPARTMENT AND SHUTDOWN PIPELINE. 9:45 PIPELINE TECHNICIAN COMPLETED ISOLATION OF PIPELINE. 12:00 EMERGENCY CONTRACTOR BEGAN CONTAINMENT MEASURES AND RECOVERY OF CRUDE ON ROW. 15:00 OSRO WAS NOTIFIED AND ARRIVED ONSITE AT 19:00 TO CONDUCT REMEDIATION ASSESSMENT. 1/18/23 8:00 START REMEDIATION OF SOIL, CONTINUED ALL DAY. 1/19/23 8:00 BEGIN PIGGING OPERATIONS TO REMOVE CRUDE FROM PIPELINE. 14:00 REMEDIATION PLAN SUBMITTED TO TEXAS RAILROAD COMMISSION FOR REVIEW. 1/20/23 11:30 REMOVED SECTION OF PIPELINE FOR REPLACEMENT WITH PRE-TESTED PIPE. 14:00 BEGIN WELDING IN NEW SECTION OF PIPE. 17:00 COMPLETED REPAIRS AND PARTIALLY FILLED PIPELINE. 1/24/23 11:30 BEGIN CLEANING AND BATCH TREATMENT OF PIPELINE, CONTINUED ALL DAY. 1/25/23 8:00 CONTINUE TO CLEAN AND BATCH TREAT PIPELINE ALL DAY. 1/26/23 12:30 PIPELINE RETURNED TO SERVICE. 5/18/23 16:00 REMEDIATION OF PIPELINE ROW COMPLETED. METALLURGICAL TESTING WAS CONDUCTED BY PERMIAN BASIN METALLURGICAL LABORATORIES MARCH 2, 2023, AND MARCH 6, 2023. THE TESTING INDICATED THE FAILURE WAS DUE TO INTERNAL PITTING CAUSED BY MICROBIALLY INDUCED CORROSION (MIC). BASED ON THE CHARACTERISTICS OF THE PITTING, THE PITTING WAS PREDOMINANTLY FROM ACID PRODUCING BACTERIA (APB) FROM THE SHARP EDGES AND ETCHING, WITH SOME SULFATE REDUCING BACTERIA (SRB) INVOLVED, BECAUSE OF THE FEATHERING OUT ON THE EDGES. A LACK OF BIOCIDE VOLUMES CONTRIBUTED TO THE MIC FORMATION RESULTING IN INTERNAL CORROSION. TO PREVENT RECURRENCE, MAINTENANCE PIGGING HAS BEEN INCREASED TO ONCE EVERY MONTH, BIOCIDES ARE BEING INJECTED DAILY, AND AN ACOUSTIC SURVEY WAS CONDUCTED TO DETERMINE ANY ADDITIONAL INTERNAL IMPERFECTIONS AND ESTABLISH A BASELINE FOR FUTURE REMEDIATION.