MMRP Site AOC 2 - Explosives Drop Test Tower
The Explosives Drop Test Tower was used from 1955 to 1977 to perform safety drop testing on fuses, cartridges and other low-level explosive items. The tower is currently standing and is 50 feet high. Ordnance was dropped from the center of the tower into a 2.5-foot-square by 6-foot-high thick metal box. The bottom of the steel box was reinforced with a belowground 4-inch-thick armor plate block on top of a 3-foot-thick concrete block.
Preliminary Site Inspection (similar to a Preliminary Assessment) was completed in December 2008. A formal Site Inspection was completed in 2011. Based on the results of the Site Inspection, a Remedial Investigation (RI) was recommended for this site. As part of the RI, surface clearance and geophysical surveys were completed in late 2017, followed by soil sampling. The RI report is scheduled to be completed in late 2018.
|Size||150 square feet|
|Location (see map)||South-central portion of station inside Seal Beach National Wildlife Refuge|
|Contamination Source||Explosives safety testing|
|Potential Waste Types||Munitions constituents|
|Est. Response Complete||Unknown; pending result of Remedial Investigation|