ENABLE GAS TRANSMISSION, LLC — Gas transmission and gathering — incident on 2015-09-17

Gas transmission and gathering incident in Not Within a Municipality, UNION County, AR. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 0.5 NATURAL GAS released, $350,000 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: 20150124.

Operator ID: 602.

Reported incident date: 9/17/2015 15:22.

Location detail: 389+10

Cause detail: PREVIOUS DAMAGE DUE TO EXCAVATION ACTIVITY

Cause detail: MISCELLANEOUS ROOT CAUSES

Cause detail: PREVIOUS DAMAGE

Cause detail: ON 9/16/15 AT 17:33 AN ENABLE EMPLOYEE WITH THE EL DORADO DISTRICT REPORTS A POSSIBLE LEAK WAS FOUND DURING A LOCAL DISTRIBUTION COMPANY LEAK SURVEY OF THEIR PIPELINE. THE ENABLE EMPLOYEE REPORTED THE POSSIBLE LEAK TO SYSTEM CONTROL. ENABLE'S KT-1, THE DISTRIBUTION COMPANY AND 2 FOREIGN PIPELINES ARE NEAR THE POSSIBLE LEAK. THE ENABLE EMPLOYEE COULD NOT CONFIRM WHICH OF THE 4 PIPELINES IN THE AREA IS LEAKING. LEAK INDICATIONS WERE SMALL. ON 9/17/15 11:15 ENABLE EMPLOYEES CONFIRMED KT-1 IS LEAKING TO SYSTEM CONTROL. AT 15:22 LOCAL EMPLOYEES CALCULATED AND PROVIDED SYSTEM CONTROL A COST ESTIMATE FOR REPAIRS OF $300,000. ON 9/17/15 16:10 SYSTEM CONTROL NOTIFIED THE NRC (REPORT # 1128754) AFTER DECIDING AND DETERMINING THEY WOULD REPLACE THE CROSSING. ON 9/19/2015 PERFORMED A LINE STOP TO ELIMINATE THE LEAKING VALVE AND PIPE CROSSING. THE CROSSING PIPE WAS LEFT IN PLACE AND A NEW SECTION OF PIPE WAS INSTALLED ADJACENT TO THE EXISTING PIPELINE CROSSING.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EXCAVATION DAMAGE — PREVIOUS DAMAGE DUE TO EXCAVATION.

PHMSA indexed costs: $351,152 reported total cost, $176,225.995 in 1984 dollars, $433,816.351 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.