TEXAS EASTERN TRANSMISSION, LP (SPECTRA ENERGY PARTNERS, LP) — Gas transmission and gathering — incident on 2019-01-21

Gas transmission and gathering incident in SUMMERFIELD, NOBLE County, OH. Reported cause: NATURAL FORCE DAMAGE. Reported consequences: 0 fatalities, 1 injuries, 74768 NATURAL GAS released, $14,000,000 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: 20190019.

Operator ID: 19235.

Reported incident date: 1/21/2019 10:37.

Location detail: 678.8

Cause detail: EARTH MOVEMENT, NOT DUE TO HEAVY RAINS/FLOODS

Cause detail: ORIGINAL REPORT: 48 HR NRC REPORT 1235825 AT APPROXIMATELY 10:37 A.M. EST ON JANUARY 21, 2019, TETLP'S 30-INCH DIAMETER LINE 10 TRANSPORTING NATURAL GAS FROM BERNE COMPRESSOR STATION TO ATHENS COMPRESSOR STATION IN NOBLE COUNTY, OHIO FAILED AT MP 678.8, APPROXIMATELY 2.8 MILES SOUTH OF THE BERNE COMPRESSOR STATION. TETLP CONFIRMED THE RUPTURE AT 10:43 A.M. EST. THE FAILURE RESULTED IN AN EXPLOSION AND FIRE. THERE WERE TWO INJURIES AND NO FATALITIES. ONE INJURY REQUIRED INPATIENT HOSPITALIZATION. APPROXIMATELY 4 RESIDENTS WERE EVACUATED. THE ESD AT THE BERNE COMPRESSOR STATION WAS ACTIVATED AT 10:48 AM EST. THE MAINLINE VALVE AT M.P. 670.55 WAS CLOSED AT 11:00 AM EST AND THE BERNE COMPRESSOR STATION BY-PASS VALVE WAS CLOSED AT 11:14 AM EST, COMPLETING THE ISOLATION OF THE FAILURE SITE. TETLP PERSONNEL ARRIVED AT THE FAILURE SITE AT APPROXIMATELY 11:14 AM EST. A THIRD PARTY METALLURGICAL INVESTIGATION IS ONGOING. THE ROOT CAUSE IS PENDING. THE COST OF THE DAMAGE HAS NOT YET BEEN DETERMINED. THE PIPELINE REMAINS OUT OF SERVICE AT THIS TIME. / SUPPLEMENTAL REPORT (10/04/2019) UPDATED PART D.7 TO INCLUDE COST OF DAMAGE SUPPLEMENTAL REPORT (10/24/2019) THE METALLURGICAL ROOT CAUSE OF THE INCIDENT WAS A RESULT OF DUCTILE OVERLOAD FROM A LONGITUDINAL TENSILE OR BENDING FORCE, LIKELY FROM LAND MOVEMENT THAT EXCEEDED THE LOAD CARRYING CAPACITY OF THE WELD. SUPPLEMENTAL REPORT (01/09/2024) PER 1/3/2023 REQUEST FROM PHMSA TO REDUCE THE NUMBER INJURED TO ONE (1) PART A 11 WAS UPDATED THE FOLLOWING ITEMS WERE ALSO UPDATED: - PART A: QUESTION 4A - PART A: QUESTION 16B - PART A: QUESTION 17 - PART D: QUESTION 9 - PART D: QUESTION 10 - PART D: QUESTION 11 - PART E: QUESTION 1A - PART E: QUESTION 2B - PART E: QUESTION 2C - PART E: QUESTION 5 - UPDATED APPARENT CAUSE IN PART G TO LANDSLIDE THE METALLURGICAL ROOT CAUSE OF THE INCIDENT WAS A RESULT OF DUCTILE OVERLOAD FROM A LONGITUDINAL TENSILE OR BENDING FORCE FROM LAND MOVEMENT THAT EXCEEDED THE LOAD CARRYING CAPACITY OF THE WELD.

PHMSA trend classification: significant incident, serious incident.

PHMSA standardized cause: NATURAL FORCE DAMAGE — EARTH MOVEMENT.

PHMSA indexed costs: $21,502,491 reported total cost, $10,360,560.254 in 1984 dollars, $24,871,572.766 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.