COLUMBIA GAS TRANSMISSION CORP — Gas transmission and gathering — incident on 2011-12-15

Gas transmission and gathering incident in MINERAL, MINERAL County, WV. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 15581 NATURAL GAS released, $5,200 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: 20120009.

Operator ID: 2616.

Reported incident date: 12/15/2011 12:59.

Location detail: 8012-010

Cause detail: PREVIOUS DAMAGE DUE TO EXCAVATION ACTIVITY

Cause detail: MISCELLANEOUS ROOT CAUSES

Cause detail: ROOT CAUSE NOT LISTED (COMMENT REQUIRED)

Cause detail: A LOCAL DISTRIBUTION COMPANY PERSONNEL NOTIFIED COLUMBIA GAS TRANSMISSION (COLUMBIA) MONITORING CENTER REGARDING A POTENTIAL RELEASE OF NATURAL GAS DUE TO A DAMAGE BY A THIRD PARTY HEAVY MACHINERY. COLUMBIA PERSONNEL WERE DISPATCHED TO INVESTIGATE AND SECURE THE LOCATION IF CONFIRMED TO BE A COLUMBIA OWNED PIPELINE. THE AREA WAS SECURED, THEREAFTER; NECESSARY EMERGENCY REPAIR PIPE WAS INSTALLED WHERE COORDINATED EFFORTS WERE MADE BETWEEN THE COLUMBIA PERSONNEL AND THE DISTRIBUTION COMPANIES (BETWEEN THE STATES OF MARYLAND AND WEST VIRGINIA) ENSURED THAT ALL LOST CUSTOMERS WERE RELIT AFTER NECESSARY REPAIRS WERE PERFORMED TO RESTORE THE SERVICE BACK TO CUSTOMERS.

PHMSA trend classification: not significant, not serious.

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

PHMSA indexed costs: $58,331 reported total cost, $40,065.677 in 1984 dollars, $52,638.598 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.