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Recommendations

The CSB issues safety recommendations to prevent the recurrence or reduce the likelihood or consequences of similar incidents or hazards in the future. Recommendations are issued to a variety of parties, including government entities, safety organizations, trade unions, trade associations, corporations, emergency response organizations, educational institutions, and public interest groups. Recommendations are published in CSB reports and are closed only by vote of the Board. The CSB tracks all recommendations and communicates regularly with recommendations recipients to ensure that the recommended corrective actions are implemented.

For more information, see Frequently Asked Questions about CSB recommendations.


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DPC Enterprises Glendale Chlorine Release (6 Recommendations)
DPC Enterprises, L.P. (6 Recommendations)
Open: 0% | Closed: 100%

Final Report Released On: February 28, 2007

2004-2-I-AZ-1

Establish and implement DPC corporate engineering standards that include adequate layers of protection on chlorine scrubbers at DPC facilities, including: -additional interlocks and shutdowns, such as automatically stopping chlorine flow to the scrubber upon oxidation-reduction potential alarm; -mitigation measures, such as systems to automatically add caustic to over-chlorinated scrubbers, or back-up scrubbing capability to treat emissions from over-chlorinated scrubbers; -increases in the final caustic concentration in the scrubbers to eight percent or higher to provide a substantial safety margin against over-chlorination; and -use of the site's continuous bleach manufacturing system to convert scrubber solution to saleable bleach.


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.
 

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2004-2-I-AZ-2

Revise scrubber SOPs to include: -clearly described operating limits and warnings about the consequences of exceeding those limits, and -the safety and environmental hazards associated with scrubber over-chlorination.


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.
 

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2004-2-I-AZ-3

Train employees on the revised SOPs and include a test to verify understanding. Periodically review operator understanding of and conformance to the scrubber SOPs.


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.
 

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2004-2-I-AZ-4

Include scrubber operation in facility PHAs. Ensure that they: -include lessons learned from this incident and other DPC scrubber incidents, as well as industry experience with over-chlorination, and -consider off-site consequences when evaluating the adequacy of existing safeguards.


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.
 

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2004-2-I-AZ-5

Use a qualified, independent auditor to evaluate DPC's PSM and RMP programs against best practices. Implement audit recommendations in a timely manner at all DPC chlorine repackaging sites.


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.
 

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2004-2-I-AZ-6

Implement a recognized safety management system, including third party verification and certification, to achieve documented continuous improvement in safety performance at Glendale and the other DPC chlorine repackaging sites.


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.
 

PDF Document Download

 
 
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