ENTERPRISE PRODUCTS OPERATING LLC — Gas transmission and gathering — incident on 2015-10-30

Gas transmission and gathering incident in CORPUS CHRISTI, NUECES County, TX. Reported cause: OTHER INCIDENT CAUSE. Reported consequences: 0 fatalities, 0 injuries, 0.1 NATURAL GAS released, $616,000 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: 20150137.

Operator ID: 31618.

Reported incident date: 10/30/2015 9:50.

Location detail: 361+24

Cause detail: UNKNOWN

Cause detail: AT 08:05 AM ON 10/30/2015, OPERATIONS DISCOVERED A MINOR NATURAL GAS LEAK ON LINE 9A AT THE NAVIGATION STREET CROSSING IN CORPUS CHRISTI. THE LEAK WAS DISCOVERED WHILE CONDUCTING AN ANNUAL GAS LEAKAGE SURVEY; PRODUCT WAS DETECTED VENTING FROM THE CASING VENT PIPE. ENTERPRISE DETERMINED AT 09:50 AM ON 10/30/2015 THAT THE LEAK WAS REPORTABLE BASED ON THE EXPECTED COST TO REPAIR OR REPLACE THE SEGMENT OF PIPELINE. OPERATIONS ISOLATED THE PIPELINE SEGMENT AND PURGED THE PIPELINE AT 11:07 AM ON 10/30/2015. SUPPLEMENTAL: THE LEAKING SEGMENT WAS PURGED, CUT AND CAPPED ON BOTH SIDES OF THE CROSSING. A NEW HDD WAS INSTALLED AND THE PIPELINE WAS RETURNED TO SERVICE ON 12/21/2015. THE OLD SEGMENT COULD NOT BE EXPOSED TO CONFIRM THE CAUSE OF THE RELEASE DUE TO LOCATION OF THE CROSSING AT NAVIGATION STREET.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: ALL OTHER CAUSES — UNKNOWN.

PHMSA indexed costs: $620,901 reported total cost, $313,571.119 in 1984 dollars, $766,617.59 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.