# TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2015-08-03

- **operation:** document
- **citation:** PHMSA Report 20150110
- **title:** TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2015-08-03
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2015-09-02
- **effective on:** 2015-08-03
- **summary:** Gas transmission and gathering incident in FALFURRIAS, BROOKS County, TX. Reported cause: MATERIAL FAILURE OF PIPE OR WELD. Reported consequences: 0 fatalities, 0 injuries, 50740 NATURAL GAS released, $40,601 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: significant incident, not serious.
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**body:**

Gas transmission and gathering incident in FALFURRIAS, BROOKS County, TX. Reported cause: MATERIAL FAILURE OF PIPE OR WELD. Reported consequences: 0 fatalities, 0 injuries, 50740 NATURAL GAS released, $40,601 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: 20150110.

Operator ID: 19160.

Reported incident date: 8/3/2015 20:36.

Location detail: 403-1+51168

Cause detail: ENVIRONMENTAL CRACKING-RELATED

Cause detail: ON 08/03/2015 AT APPROXIMATELY 8:36PM TENNESSEE GAS PIPELINE (TGP) GAS CONTROL RECEIVED A PRESSURE RATE OF CHANGE CRITICAL ALARM ON LINE 400-1. THE GAS CONTROLLER CONTACTED TGP OPERATIONS TO DISPATCH PERSONNEL TO THE POSSIBLE LEAK SITE AND TAKE TGP STATION 1 OFFLINE. THE CONTROLLER ALSO CONFIRMED THAT LOCAL EMERGENCY RESPONDERS, INCLUDING THE BROOKS COUNTY SHERIFFS DEPARTMENT, WERE ON-SITE. OPERATIONS INITIATED EMERGENCY RESPONSE. THE 400-1 LINE FROM MAINLINE VALVE (MLV) 403-1 TO MLV 404-1 WAS ISOLATED AT 10:06PM AND THE ISOLATED SECTION WAS BLOWN DOWN TO A ZERO PRESSURE BY 10:15PM. THE FIRE MARSHAL EVACUATED HOMES AND TX DOT TEMPORARILY CLOSED HWY 285 FOR A 5 MILE DISTANCE EAST AND WEST UNTIL THE ISOLATED SEGMENT WAS BLOWN DOWN. THE METALLURGICAL REPORT CONCLUDED THAT THE CAUSE WAS HIGH PH STRESS CORROSION CRACKING.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: MATERIAL FAILURE OF PIPE OR WELD — ENVIRONMENTAL CRACKING-RELATED.

PHMSA indexed costs: $191,498 reported total cost, $158,874.942 in 1984 dollars, $222,277.536 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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