 The safe drinking water standard for RDX and TNT is only 2 ppb.Cornhusker had produced bombs and explosives during World War II, the Korean War and Vietnam War, and had been put on standby status in October 1973.During munitions production, wastewater contaminated with explosives, and explosives-contaminated mops, buckets, and other equipment were buried in 56 earthen surface impoundments.