# NTSB Safety Recommendation P-93-011

- **operation:** document
- **citation:** P-93-011
- **title:** NTSB Safety Recommendation P-93-011
- **source type:** guidance
- **agency:** National Transportation Safety Board
- **status:** guidance
- **official:** true
- **published on:** 1993-12-15
- **effective on:** 1993-12-15
- **summary:** THE NTSB RECOMMENDS THAT THE MAPCO NATURAL GAS LIQUIDS, INC.: DEVELOP AND IMPLEMENT TRAINING AND PROCEDURES THAT FOCUS ON IDENTIFYING AND DISTRIBUTING EMERGENCY-RESPONSE TASK, ESTABLISHING COMMUNICATION, AND COORDINATING ON-SCENE PERSONNEL FOR ALL EMPLOYEES WHO RESPOND TO ABNORMAL AND EMERGENCY SITUATIONS.
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- **source url:** https://data.ntsb.gov/carol-main-public/sr-details/P-93-011
**body:**

NTSB safety recommendation P-93-011.

THE NTSB RECOMMENDS THAT THE MAPCO NATURAL GAS LIQUIDS, INC.: DEVELOP AND IMPLEMENT TRAINING AND PROCEDURES THAT FOCUS ON IDENTIFYING AND DISTRIBUTING EMERGENCY-RESPONSE TASK, ESTABLISHING COMMUNICATION, AND COORDINATING ON-SCENE PERSONNEL FOR ALL EMPLOYEES WHO RESPOND TO ABNORMAL AND EMERGENCY SITUATIONS.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1993-12-15

Adopted Date: 1993-11-04

Overall Date Closed: 1995-05-01

Synopsis: ON APRIL 7, 1992, AN UNCONTROLLED RELEASE OF HIGHLY VOLATILE LIQUIDS (HVLS) FROM A SALT DOME STORAGE CAVERN IN THE SEMINOLE PIPELINE SYSTEM NEAR BRENHAM, TEXAS, FORMED A LARGE, HEAVIER-THAN-AIR GAS CLOUD THAT EXPLODED. THREE PEOPLE DIED FROM INJURIES SUSTAINED EITHER FROM THE BLAST OR IN THE FIRE. AN ADDITIONAL 21 PEOPLE WERE TREATED FOR INJURIES AT AREA HOSPITALS. DAMAGE FROM THE ACCIDENT EXCEEDED $9 MILLION.

Probable Cause: None

Keywords: Communication, Firefighting

Ntsbnumber: DCA92MP006

Report Number: PAR-93-01

Addressee Name: MAPCO Natural Gas Liquids, Inc.

Addressee Status: Closed - Acceptable Action

Addressee Date Closed: 1995-05-01

Addressee Organization Type: P-Private Industry

Communication Date: 1994-01-31

Communication Type: Official Correspondence

Communication Contents: P-93-11 HAS BEEN INCORPORATED INTO MAPL'S PROCESS SAFETY MANUALS & WILL BE ADDED TO THE PROCEDURES MANUALS FOR COMPLIANCE WITH 49 CFR 195. P-93-12 ALSO IS BEING INCORPORATED INTO THE CURRENT REWRITE OF THE PROCEDURAL MANUAL.

Addressee Organization Type: P-Private Industry

Communication Date: 1995-01-05

Communication Type: Official Correspondence

Communication Contents: SEMINOLE'S CONTRACTOR, MID-AMERICAN PIPELINE COMPANY, HAS DEVELOPED & IMPLEMENTED A MANDATORY ANNUAL TRAINING PROGRAM FOR ALL EMPLOYEES PERFORMING SAFETY-RELATED FUNCTIONS UNDER C.F.R. 195. THE INITIAL TRAINING CURRICULUM CONSIST OF 24 HOURS OR HAZWOPER, PLUS 16 HOURS OF RELATED TRAINING ON EMERGENCY RESPONSE TOPICS. THIS 40 HOURS TRAINING FOCUSES ON IDENTIFYING & DISTRIBUTING EMERGENCY RESPONSE TASKS, ESTABLISHING COMMUNICATIONS & COORDINATION OF ON-SCENE PERSONNEL.

Addressee Organization Type: P-Private Industry

Communication Date: 1994-05-26

Communication Type: Official Correspondence

Communication Contents: THE BOARD IS PLEASED THAT RECOMMENDATIONS P-93-11 & -12 HAVE BEEN INCORPORATED INTO MAPL'S PROCESS SAFETY MANUALS & WILL ULTIMATELY BE INCORPORATED INTO ITS PROCEDURAL MANUALS. WHEN THIS WORK IS COMPLETE, WE WOULD APPRECIATE RECEIVING A COPY OF THE SECTIONS THAT HAVE BEEN REVISED TO INCORPORATE THE INTENT OF THESE RECOMMENDATIONS. IN THE INTERIM, THE BOARD HAS CLASSIFIED P-93-11 AND -12 "OPEN--ACCETPTABLE RESPONSE."

Addressee Organization Type: P-Private Industry

Communication Date: 1995-05-01

Communication Type: Official Correspondence

Communication Contents: THE BOARD IS PLEASED THAT THE SEMINOLE PIPELINE COMPANY HAS CONTRACTED WITH MID-AMERICA PIPELINE COMPANY TO DEVELOP A 40-HOUR, MANDATORY ANNUAL TRAINING PROGRAM FOR ITS 420 EMPLOYEES. THE BOARD NOTES THAT THE TRAINING PROGRAM FOCUSES ON IDENTIFYING & DISTRIBUTING EMERGENCY RESPONSE TASKS, ESTABLISHING COMMUNICATIONS, & COORDINATING ON-SCENE PERSONNEL. BASED ON THIS INFO, P-93-11 HAS BEEN CLASSIFIED "CLOSED--ACCEPTABLE ACTION."
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