FLORIDA GAS TRANSMISSION CO — Gas transmission and gathering — incident on 2013-05-29

Gas transmission and gathering incident in TAMPA, HILLSBOROUGH County, FL. Reported cause: NATURAL FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 1443.2 NATURAL GAS released, $130,000 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: 20130057.

Operator ID: 5304.

Reported incident date: 5/29/2013 23:26.

Location detail: 3551+05

Cause detail: OTHER NATURAL FORCE DAMAGE

Cause detail: AFTER DISCUSSIONS WITH THE PHMSA SOUTHERN REGION, THIS SUPPLEMENTAL FINAL REPORT IS SUBMITTED TO CHANGE THE CAUSE FROM G8 - OTHER INCIDENT CAUSE, TO G2 - OTHER NATURAL FORCE DAMAGE. THIS IS AN INTERACTING FAILURE. THERE WERE TWO CAUSES. LIGHTNING STRIKE ON A THIRD PARTY GROUNDING ROD. A LEAK OCCURRED ON WEDNESDAY MAY 29, 2013 ON THE ST. PETE LATERAL BETWEEN MLV 24-70 AND MLV 24-8. AFTER THE LEAK WAS IDENTIFIED, THIS SECTION OF PIPE WAS ISOLATED AND BLOWNDOWN. THE AFFECTED PIPE HAD A 7.5' SECTION CUT-OUT AND REPLACED ON JUNE 1, 2013.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: NATURAL FORCE DAMAGE — OTHER NATURAL FORCE DAMAGE.

PHMSA indexed costs: $146,972 reported total cost, $80,978.081 in 1984 dollars, $182,460.318 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.