option.2 The BGAD open burning/open detonation site is currently operating under an interim status permit that allows treatment of 6 million pounds net explosive weight per year for the whole site. Open-burn pans are site-approved for 6,000 lb per event. So if 200 M55 rockets were cut each day, each with a propellant weight of about 20 lb, BGAD could carry out one 4,000-lb event every day and keep up with the pace of rocket motor accumulation (weather and other workload permitting). A proposal with some engineering design would be needed to test out base plate removal and propellant grain extraction. Standard operating procedures (SOPs) or SOP modifications would need to be written and approved for removal of the M28 propellant and the M62 rocket motor igniter assembly.
Since the M28 grain contains lead stearate, the environmental office would need to ensure that lead emissions remain within the permitted levels for their current air pathway hazards assessment for the amount of propellant to be burned. Although BGAD already has a Resource Conservation and Recovery Act (RCRA) Subpart X permit to dispose of waste energetics, the levels of lead in the M28 propellant grain could restrict the throughput of separated rocket motors.
The open burning of the propellant grain option would have the following advantages:
The disadvantages of this option would include these:
2Robotics strategies that have been developed for other conventional ordnance items could be applied if the propellant does not easily slide out. Sandia National Laboratories has developed such strategies.