SOUTHERN CALIFORNIA GAS CO — Gas transmission and gathering — incident on 2017-10-01

Gas transmission and gathering incident in NEWBERRY SPRINGS, SAN BERNARDINO County, CA. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 29500 NATURAL GAS released, $1,499,500 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: 20170099.

Operator ID: 18484.

Reported incident date: 10/1/2017 10:42.

Location detail: 129.6

Cause detail: EXTERNAL CORROSION

Cause detail: ON OCTOBER 1, 2017, SOCALGAS BECAME AWARE OF A PRESSURE DROP ALONG A TRANSMISSION LINE 235. SOCALGAS CREW DETERMINED THAT THERE WAS A RUPTURE, ISOLATED THE LINE WITH A COMBINATION OF AUTOMATIC AND REMOTELY CONTROLLED VALVES, AND REMOVED THE GAS WITHIN THE LINE. NO FURTHER DAMAGES OR INJURIES RESULTED FROM THIS INCIDENT. THE INVESTIGATION OF THE CAUSE OF THE RUPTURE IS COMPLETED. THIS INCIDENT WAS REPORTED TO THE DOT AND THE CPUC DUE TO THE RELEASE OF GAS AND THE ESTIMATED DAMAGE EXCEEDING $50,000. THE FINALIZED COST ASSOCIATED TO THIS INCIDENT WILL BE UPDATED ONCE AVAILABLE. THE 48-HOUR UPDATE WAS MADE TO THE DOT PER NRC #1192187. FOR ANY FURTHER QUESTIONS, PLEASE CONTACT IK SONG AT (818) 279-5388. UPDATE 5/01/2019: UPDATED YTD TOTAL COST INFORMATION (FINALIZED). FOR ANY FURTHER QUESTIONS, PLEASE CONTACT ALI MATIN AT (909) 919-0463.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — EXTERNAL.

PHMSA indexed costs: $3,246,489 reported total cost, $1,682,068.061 in 1984 dollars, $3,900,305.895 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.