GULF SOUTH PIPELINE COMPANY, LP — Gas transmission and gathering — incident on 2015-01-14

Gas transmission and gathering incident in BRANDON, RANKIN County, MS. Reported cause: MATERIAL FAILURE OF PIPE OR WELD. Reported consequences: 0 fatalities, 0 injuries, 51085 NATURAL GAS released, $600,720 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: 20150017.

Operator ID: 31728.

Reported incident date: 1/14/2015 6:22.

Location detail: 253.3

Cause detail: ORIGINAL MANUFACTURING-RELATED (NOT GIRTH WELD OR OTHER WELDS FORMED IN THE FIELD)

Cause detail: THE FAILURE OF THE PIPELINE WAS THE RESULT OF HYDROGEN CRACKING IN A HARD SPOT THAT IS UNDERSTOOD TO HAVE BEEN PRODUCED IN THE PLATE USED TO MANUFACTURE THE PIPE BY A. O. SMITH. 2-19-16 UPDATED WITH RESTART DATE/TIME AND COST OF UNINTENTIONAL GAS LOSS AS REQUESTED BY PHMSA. FINAL REPORT TO FOLLOW WHEN WORK IS COMPLETE. 3-2-16 REVISED COST TO REFLECT ONLY THOSE COSTS DIRECTLY ASSOCIATED WITH THE INCIDENT AND NOT ADDITIONAL WORK THAT FOLLOWED. 2-5-2020: REVISED PER PHMSA REQUEST. CAUSE WAS CONFIRMED AS A HARD SPOT WITH A BRINELL HARDNESS GREATER THAN 300, THAT WAS GREATER THAN TWO (2) INCHES IN LENGTH, AND WAS PREVIOUSLY REINFORCED WITH A TYPE A SLEEVE. FOLLOWING PHMSA INVESTIGATION, GULF SOUTH ENTERED INTO A CONSENT AGREEMENT (CPF NO. 2-2015-1001S) WITH PHMSA SOUTHERN REGION. ALL REMEDIATION REQUIREMENTS HAVE BEEN SUBMITTED TO PHMSA SOUTHERN REGION.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: MATERIAL FAILURE OF PIPE OR WELD — MANUFACTURING-RELATED.

PHMSA indexed costs: $763,681 reported total cost, $452,463.631 in 1984 dollars, $927,690.838 in current-year dollars.

PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.