TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2017-10-04

Gas transmission and gathering incident in Not Within a Municipality, PIKE County, PA. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 9242 NATURAL GAS released, $55,000 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: 20170098.

Operator ID: 19160.

Reported incident date: 10/4/2017 17:04.

Location detail: STATION 69+10

Cause detail: EXCAVATION DAMAGE BY OPERATOR'S CONTRACTOR (SECOND PARTY)

Cause detail: EXCAVATION ISSUE

Cause detail: MARKS FADED OR NOT MAINTAINED

Cause detail: 10/04/2017; BETWEEN 17:04 HOURS AND 17:20 HOURS, STATION 323A COMPRESSOR STATION OPERATOR HEARD THE SOUND OF NATURAL GAS BLOWING NEARBY AND CONTACTED GAS CONTROL AND OPERATIONS SUPERVISION; OPERATIONS INSTRUCTED EMPLOYEES TO BEGIN CLOSING MAIN LINE VALVES AS PRESSURE DROP WAS BEGINNING. OPERATIONS DISPATCHED MORE EMPLOYEES TO CLOSE ADDITIONAL MAIN LINE VALVES AND TGP BEGAN NOTIFYING CUSTOMERS THE PIPELINE PRESSURE WOULD DECREASE; THE MAIN LINE VALVES ON LINE 300-1 AND LINE 300-2 WERE CONFIRMED CLOSED; AND IT WAS VERIFIED THE GAS RELEASE WAS FROM LINE 300-1 AND DETERMINED THE CAUSE OF RELEASE WAS BY 2ND PARTY DAMAGE; VALVE SECTION 323-1 OF LINE 300-1 IS SECURED; OPERATIONS CHECKED LINE 300-2 FOR IMPACT; OPERATIONS RETURNED LINE 300-2 TO SERVICE; DURING THE EVENT, IT WAS LEARNED THE LOCAL VOLUNTEER FIRE DEPARTMENT CLOSED SOME ROADS; THROUGH LOCAL NEWS MEDIA, IT WAS LATER LEARNED PIKE COUNTY EMA EVACUATED APPROXIMATELY 130 PERSONS; KINDER MORGAN BEGAN INTERNAL INVESTIGATION OF THE EVENT IMMEDIATELY ON 10/05/2017; IT WAS FOUND THE 2ND PARTY HEAVY EQUIPMENT STRUCK THE LINE 300-1 WHILE PERFORMING TASKS FOLLOWING THE REMOVAL OF ROAD BORE TRENCH BOXES RESULTING IN A PUNCTURE OF THE PIPELINE; PIPELINE DAMAGE WAS REPAIRED BY PIPE REPLACEMENT; VALVE SECTION 323-1 OF LINE 300-1 WAS RETURNED TO SERVICE ON 10/07/2017 AT 20:00 HOURS; THERE WAS NO INTERRUPTION OF SERVICE TO TGP CUSTOMERS; ADDITIONAL INFORMATION: PIR OF THE PIPELINE INCLUDING KINDER MORGAN BUFFER IS 606 FEET; ONE CALL TICKET NUMBERS FOR THE CONSTRUCTION PROJECT ARE 20171593582 AND 20171640580; ALL TIMES IN THIS REPORT ARE EASTERN TIME ZONE;

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EXCAVATION DAMAGE — OPERATOR/CONTRACTOR EXCAVATION DAMAGE.

PHMSA indexed costs: $83,243 reported total cost, $53,471.839 in 1984 dollars, $99,155.787 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.