In June 1946, the Army was transporting chemical warfare munitions by rail to Huntsville Arsenal. The cargo consisted of 1 ,OOO-pound, mustard-filled German bombs. Near Manchester, Georgia, a leaking bomb was discovered in one of the cars. Approximately 22 bombs were removed to find the leaker. The leaking munition had a cracked seam, measuring 1 inch wide along the length of the bomb. Almost all of the mustard had emptied onto the floor of the car.

The remaining contents of the bomb were neutralized and buried at depth of 6 to 7 feet. Signs were posted to indicate the site. The bomb casing and rail car were decontaminated with DANC (a decontaminant) and the train proceeded to Huntsville Arsenal, Alabama.

The burial site at Manchester, Georgia, was redug to a depth of 10 feet on September 30, 1946. Although an odor of mustard was present in a small quantity of dirt removed, tests using the M9 detector kit revealed no traceable amounts. The suspected dirt was decontaminated using 200-pounds of bleach and the hole refilled. A report stated that the area was now entirely free of mustard and no danger existed.