Skip to Main Content

An independent federal agency investigating chemical accidents to protect workers, the public, and the environment.

Text Size AA
PRINT PAGE
DuPont LaPorte Facility Toxic Chemical Release
Location: LaPorte, TX
Accident Occurred On: 11/15/2014
Accident Type: Release

statistics

Total # of Recommendations
7
Total # of Open Recommendations
6
Total # of Closed Recommendations
1
Total % of Open 86 vs. Closed 14

investigation information

Image
Accident Description
The accident at DuPont’s facility, located east of Houston, killed four workers and injured a fifth when methyl mercaptan, a toxic chemical used in the company’s insecticide and fungicide manufacturing process, was released.
Investigation Status
The CSB's investigation is currently ongoing


 

Recommendations

DuPont LaPorte, Texas Chemical Facility
2015-01-I-TX-1
Prior to resuming Insecticide Business Unit (IBU) manufacturing operations, conduct a comprehensive
engineering analysis of the manufacturing building and the discharge of pressure relief systems with toxic
chemical scenarios to assess potential inherently safer design options. At a minimum, evaluate the use of
an open building structure, and the direction of toxic chemical leaks and the discharge of pressure relief
systems with toxic chemical scenarios to a destruction system. Implement inherently safer design
principles to the greatest extent feasible and effectively apply the hierarchy of controls such that neither
workers nor the public are harmed from potential highly toxic chemical releases. Detail the analysis,
findings, and corrective actions in a written report and make this report available to DuPont La Porte
employees, their representatives, and the CSB.
Status: Open - Acceptable Response or Alternate Response
Open - Acceptable Response or Alternate Response (O - ARAR) - Response from recipient indicates a planned action that would satisfy the objective of the recommendation when implemented.
 

Recommendations Status Change Summary
2015-01-I-TX-2
Prior to resuming Insecticide Business Unit (IBU) manufacturing operations, conduct a robust
engineering evaluation of the manufacturing building and the dilution air ventilation system that includes
the implementation of corrective action(s) to the greatest extent feasible in order to ensure a safe
environment for all workers. Develop a documented design basis for the manufacturing building and the
air dilution ventilation system that identifies effective controls for highly toxic, asphyxiation, and
flammability hazards and implement these controls to the greatest extent feasible. Address nonroutine
operations and emergency response activities in the design basis. The design basis for the manufacturing
building and the dilution air ventilation system must use the hierarchy of controls and inherently safer
design principles to the greatest extent feasible.
Status: Open - Acceptable Response or Alternate Response
Open - Acceptable Response or Alternate Response (O - ARAR) - Response from recipient indicates a planned action that would satisfy the objective of the recommendation when implemented.
 

Recommendations Status Change Summary
2015-01-I-TX-3
Prior to resuming manufacturing operations, ensure all Insecticides Business Unit (IBU) pressure relief
systems are routed to a safe location and effectively apply the hierarchy of controls to protect workers and
the public. Commission a pressure relief device analysis, consistent with API Standard 521 and the
ASME Code, including a field review. Include an evaluation of relief system discharge location to ensure
that relief systems are discharged to a safe location that will prevent toxic exposure, flammability, or
asphyxiation hazards in order to ensure public and worker health and safety to the greatest extent feasible.
Include an evaluation of relief scenarios consistent with API Standard 521.
Status: Open - Acceptable Response or Alternate Response
Open - Acceptable Response or Alternate Response (O - ARAR) - Response from recipient indicates a planned action that would satisfy the objective of the recommendation when implemented.
 

Recommendations Status Change Summary
2015-01-I-TX-4
Develop and implement an expedited schedule to perform more robust process hazard analyses (PHAs)
consistent with R1, R2, and R3 for all units within the Insecticides Business Unit (IBU). At a minimum,
the PHAs must effectively identify and control the hazards referenced in this document utilizing the
hierarchy of controls. The PHA schedule must be prioritized based on anticipated risks to the public and
workers in order to ensure that the highest risk areas receive priority consideration. At a minimum, the
more robust PHAs must be consistent with the approach applied to post-incident reviews described above
in paragraph 10.
Status: Open - Acceptable Response or Alternate Response
Open - Acceptable Response or Alternate Response (O - ARAR) - Response from recipient indicates a planned action that would satisfy the objective of the recommendation when implemented.
 

Recommendations Status Change Summary
2015-01-I-TX-5
Work together with the International Chemical Workers Union Council of the United Food and
Commercial Workers (ICWUC/UFCW) Local 900C and the ICWUC/UFCW staff (at the request of the
local) to develop and implement a plan to ensure active participation of the workforce and their
representatives in the implementation of Recommendations R1 through R4. In addition, provide a copy
of DuPont’s integrated plan for restart to La Porte workers and their local union representatives.
Status: Open - Acceptable Response or Alternate Response
Open - Acceptable Response or Alternate Response (O - ARAR) - Response from recipient indicates a planned action that would satisfy the objective of the recommendation when implemented.
 

Recommendations Status Change Summary
2015-01-I-TX-6
Make publicly available (on a website) a summary of the DuPont November 15, 2014 incident
investigation report, the integrated plan for restart, and actions to be taken for the implementation of
Recommendations R1 through R5. This website must be periodically updated to accurately reflect the
integrated plan for restart and implementation of Recommendations R1 through R5.
Status: Closed - Acceptable Action
Closed - Acceptable Action (C - AA) - The recipient has completed action on the recommendation. The action taken meets the objectives envisioned by the Board.
 

Recommendations Status Change Summary
International Chemical Workers Union Council (ICWUC) of the United Food and Commercial Workers (UFCW) and Local 900C
2015-01-I-TX-7
Work together with DuPont to develop and implement a plan to ensure active participation of the
workforce and their representatives in the implementation of Recommendations R1 through R4.
Status: Open - Acceptable Response or Alternate Response
Open - Acceptable Response or Alternate Response (O - ARAR) - Response from recipient indicates a planned action that would satisfy the objective of the recommendation when implemented.
 

Recommendations Status Change Summary
 
 

Related Video

Animation of Chemical Release at DuPont's La Porte Facility
9/30/2015 2:14:00 PM
CSB animation of the accident at DuPont’s La Porte facility, located east of Houston, which killed four workers and injured a fifth when methyl mercaptan, a toxic chemical used in the company’s insecticide and fungicide manufacturing process, was released. read more

Download QuickTime Video

Related News

dupontlaporte_release_point
CSB board approves the DuPont La Porte interim recommendations with a unanimous vote
9/30/2015
The interim recommendations stem from the ongoing investigation by the CSB of the November 15, 2014, toxic chemical leak that killed four workers at the DuPont insecticide plant in La Porte, Texas.
read more
dupontlaporte_release_point
Watch a live webcast of the CSB's public meeting
9/29/2015
on Wednesday, September 30, 2015, from 6 to 9 p.m. CDT on the ongoing investigation into the Nov. 2014 chemical release at the DuPont La Porte facility that killed four workers.
read more
dupontlaporte_building
Chemical Safety Board Uncovers Flaws at the DuPont Insecticide Plant in La Porte, Texas, Where Four Chemical Workers Died
9/28/2015
An ongoing investigation by the U.S. Chemical Safety Board (CSB) of the November 15, 2014, toxic chemical leak that killed four workers at the E. I. du Pont de Nemours insecticide plant in La Porte, Texas, has uncovered flawed safety procedures, design problems and inadequate planning.
read more
 
 
© csb.gov. All rights reserved