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- The drum utilized may be either a DOT specification or a non-DOT specification drum as long as the drum has equal or greater structural integrity than a package that is authorized for the respective material in this subchapter. Maximum capacity shall not exceed 110 gallons.
- Each drum must be provided with adequate closure and, when necessary, provided with sufficient cushioning and absorption material to prevent excessive movement of the damaged package and to absorb all free liquid. All cushioning and absorbent material used in the drum must be compatible with the hazardous material.
- Each drum must be marked with the proper shipping name of the material inside the defective packaging and the name and address of the consignee. In addition, the drum must be marked 'salvage drum.'
- Each drum must be labeled as prescribed for the respective material."
Photo by Stephen L. Hermann
Initial and continuous air monitoring insured that cleanup contractor personnel could utilize cartridge respirator masks for breathing protection. The damaged 55-gallon drums are placed inside the 85-gallon "salvage drums."
A waste management contractor was selected for the cleanup by the carrier, and soon had several vehicles and a complete crew at the scene. Although initial monitoring had not detected any spilled material, cleanup crews working to remove drums from inside the heavily damaged trailer utilizing air supplied through a line back to a bank of cylinders. Each individual also had a five-minute escape air cylinder in case the primary air line supply failed.
Once the damaged drums were removed from the wreckage of the trailer, and it was definitely determined they were not leaking, the crews handling them utilized cartridge respirators for breathing protection. Any of the drums which were not in safe condition for continuing in transportation were overpacked in 85-gallon recovery drums. The 85-gallon recovery drums were then marked with the proper shipping name of the contents and DOT hazmat labels for the hazard class were applied, just the same as the original drum.
After the cleanup contractor personnel had thoroughly inspected the drums in the trailer and again detected no apparent leaks, individuals who had been evacuated from the nearby area were allowed to return to their homes. Periodic air monitoring continued to be conducted throughout the entire cleanup and repackaging operation but nothing was detected.
The majority of the hazardous waste 55-gallon drums contained smaller packages, varying from a few ounces to one gallon, surrounded in cushioning liquid absorbing material which filled the drums. This "protective" form of packaging prevented any of the inner containers from rupturing and discharging their contents.
After all of the drums had been taken out of the trailer, the wreckage of the vehicle was removed from the scene. The overpacking operation was completed within a few hours, and the cleanup contractor insured the original waste manifests matched the reloaded and heavily repackaged shipment.