Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Investigation Report: Chlorine Release

Investigation Report: Chlorine Release

Investigation Board, U. S. Chemical Safet

Paperback

General Law

ISBN10: 1500495271
ISBN13: 9781500495275
Publisher: Createspace
Published: Aug 1 2014
Pages: 100
Weight: 0.56
Height: 0.21 Width: 8.50 Depth: 11.02
Language: English
On the morning of August 14, 2002, 48,000 pounds of chlorine was released over a 3-hour period during a railroad tank car unloading operation at DPC Enterprises, L.P., near Festus, Missouri. The facility repackages bulk dry liquid chlorine into 1-ton containers and 150-pound cylinders for commercial, industrial, and municipal use in the St. Louis metropolitan area. Chlorine is a toxic chemical. Concentrations as low as 10 parts per million are classified as immediately dangerous to life or health (NIOSH, 2003). Although the wind direction on the day of the release carried the majority of the chlorine plume away from neighboring residential areas, some areas were evacuated. Sixty-three people from the surrounding community sought medical evaluation at the local hospital for respiratory distress, and three were admitted for overnight observation. The release affected hundreds of other nearby residents and employees, and the community was advised to shelter-in-place for 4 hours. Traffic was halted on Interstate 55 for 1.5 hours. Three DPC workers received minor skin exposure to chlorine during cleanup activities. This incident began with the failure of a chlorine transfer hose (CTH) connecting a tank car to the facility repackaging process. The U.S. Chemical Safety and Hazard Investigation Board (CSB) determined that the ruptured hose was constructed of stainless-steel braid rather than Hastelloy C, a metal alloy (CSB, 2002). The CSB investigation determined the following root causes:

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