# ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC — Gas transmission and gathering — incident on 2013-08-20

- **operation:** document
- **citation:** PHMSA Report 20130088
- **title:** ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC — Gas transmission and gathering — incident on 2013-08-20
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2013-09-19
- **effective on:** 2013-08-20
- **summary:** Gas transmission and gathering incident in KIOWA, PITTSBURG COUNTY County, OK. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 5100 NATURAL GAS released, $40,000 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. PHMSA trend classification: not significant, not serious.
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- **source url:** https://data.transportation.gov/api/views/27nc-rsge/files/2b05c2d8-d14a-4c56-ac1c-7d23a4bc31c8?download=true&filename=Gas%20Transmission%20%26%20Gathering%20Incident%20Data%20-%20January%202010%20to%20present.zip
**body:**

Gas transmission and gathering incident in KIOWA, PITTSBURG COUNTY County, OK. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 5100 NATURAL GAS released, $40,000 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: 20130088.

Operator ID: 26330.

Reported incident date: 8/20/2013 11:05.

Cause detail: PREVIOUS DAMAGE DUE TO EXCAVATION ACTIVITY

Cause detail: MISCELLANEOUS ROOT CAUSES

Cause detail: PREVIOUS DAMAGE

Cause detail: MCALESTER LINE 263 RUPTURED JUST SOUTH OF KIOWA IN A PASTURE CAUSING A GRASS/TIMBER FIRE. LOCAL FIRE DEPARTMENT AND LOCAL AUTHORITIES ARRIVED ON SCENE TO ASSIST. NO INJURIES AND NO STRUCTURES WERE INVOLVED. THE PIPELINE FIRE DISSIPATED FROM SHUTTING THE GAS IN AND FIRE DEPARTMENT WAS ABLE TO CONTROL FIRE AND KEEP IT FROM SPREADING. THE DAMAGED SECTION OF PIPE WAS REMOVED AND SHOWED SIGNS OF THIRD-PARTY DAMAGE. IT HAS BEEN SENT TO A METALLURGIST FOR FURTHER ANALYSIS AND WE ARE AWAITING THE RESULTS. NOTE: THE DAMAGED SECTION OF PIPE WAS REPLACED. A GAUGE PIG WAS RAN ON 8/22/13 BEFORE PIPELINE WAS PLACED BACK INTO SERVICE. SUPPLEMENTAL INFORMATION. THE METALLURGIST REPORT CONCLUDED THAT THE THIRD PARTY DAMAGE RESULTED IN: FRACTURE INITIATED ON A DAMAGED AREA OF THE PIPELINE WHERE DEEP GOUGE MARKS WERE NOTED ON THE OUTSIDE SURFACE. THERE WERE TWO PARALLEL SCRAPE MARKS RUNNING ROUGHLY IN THE LONGITUDINAL DIRECTION AND PRODUCED CONSIDERABLE DEFORMATION OF THE STEEL. FINAL FAILURE OF THE PIPELINE WAS A RESULT OF DUCTILE OVERLOAD. EXTERNAL DAMAGE AND NECKING HAD RESULTED IN A WALL THICKNESS REDUCED TO APPROXIMATELY 0.160" FROM THE MEASURED 0.225" UNDAMAGED WALL NEARBY. THE UNDAMAGED SECTION OF PIPE WAS TESTED AND MET ALL THE REQUIREMENTS OF API SPECIFICATION 5L, PSL 2, GRADE X52.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: EXCAVATION DAMAGE — PREVIOUS DAMAGE DUE TO EXCAVATION.

PHMSA indexed costs: $75,800 reported total cost, $44,845.682 in 1984 dollars, $91,150.468 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.
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