SOUTHERN STAR CENTRAL GAS PIPELINE, INC — Gas transmission and gathering — incident on 2013-01-28

Gas transmission and gathering incident in PLEASANT HILL, CASS County, MO. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 3501 NATURAL GAS released, $0 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: 20130020.

Operator ID: 31711.

Reported incident date: 1/28/2013 4:30.

Location detail: 110/0+26

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: AT 5:15 AM ON JANUARY 28, 2013 SSCGP GAS CONTROL WAS CALLED BY A HOMEOWNER NEAR THE PLEASANT HILL SETTING, STATING THAT THE RELIEF WAS BLOWING. GAS CONTROL IMMEDIATELY CALLED JASON JEDLICKA, OPERATIONS, WHO IN TURN CALLED LES JOHNSON, MEASUREMENT TECHNICIAN. LES ARRIVED AT THE PLEASANT HILL SETTING AT APPROXIMATELY 5:44 AM AND WORKED TO STOP THE RELIEF FROM CYCLING GAS. ONCE THE GAS RELEASE WAS MANAGED LES SWITCHED THE REGULATOR TO THE SECONDARY LINE AND INVESTIGATED THE REGULATOR. THE REGULATOR WAS FOUND TO HAVE A CUT IN THE BOOT AND HARD DEBRIS IN THE MAIN BODY. THE REGULATOR BOOT WAS REPLACED AND THE REGULATOR PILOT WAS OVERHAULED. AFTER THE MAIN REGULATOR WAS OVERHAULED THE GAS WAS RETURNED TO NORMAL AND THE SECOND REGULATOR WAS CHECKED AND OVERHAULED AS A PRECAUTIONARY ACTION. THE SECONDARY RUN PASSED LOCKUP AND NO DEBRIS WERE FOUND. THE BOOT WAS REPLACED AS AN EXTRA MEASURE. WHEN THE LOSS OF GAS WAS DISCOVERED BY GAS CONTROL TO BE ABOVE THE THREE MILLION THRESHOLD, THE INCIDENT WAS REPORTED TO NRC.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: EQUIPMENT FAILURE — MALFUNCTION OF CONTROL/RELIEF EQUIPMENT.

PHMSA indexed costs: $10,940 reported total cost, $8,855.123 in 1984 dollars, $10,872.746 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.