LINE 6 AMMO PRODUCTION

 

SITE DESCRIPTION

This site consists of buildings 6-34-2 and 6-92 located in the Line 6 Ammo Production area. It comprises 95.21 acres and is currently inactive. The Line 6 Ammo Production Area is located near the center of the IAAAP and was used for the production, storage and shipping of detonators, primers, relays, delays, hand grenade fuses, and mines. Line 6 is identified as AEDB-R site number IAAP-007. Production Building 6-34-2 was used to load detonators. The northern end of the building was used to assemble detonators and the southern end was used for loading black powder into a component known as a candlestick. There was also a room for component storage. In November 1968, loading black powder caused an explosion in the southern half of the building. Unexploded detonators were found scattered around the area. All visible detonators were recovered at that time.

Component Rumble Building 6-92 was used to clean explosives residue from the newly completed components, such as detonators and relays. Components were mixed with hot sawdust and placed into a rumble machine. The sawdust was removed by vibration. The components were then placed in boxes and sent to the inspection and shipping building. In February 1970 an explosion occurred in this building. All visible components were recovered at that time. Another visual inspection of the area was recently conducted in preparation for sewer line construction. No UXO was found during this inspection.

In the fall of 2004 MKM performed a geophysical density survey for MEC at Line 6. The MEC density survey was performed using an electromagnetic metal detector to a depth of four feet below ground surface. MEC avoidance procedures should be used during any sampling and clearance is required prior to any large scale soil removal.

The US Army has determined that the facilities at this line are excess and will pursue non-ER,A funding for building demolition and debris removal, which is listed as an option in the PBC.

CLEANUP STRATEGY

In October 2007 the SI was completed. Per the agreements made in the December 2006 dispute resolution, the US Army has agreed to complete RIs at all MMRP sites at IAAAP. The RI began in April 2008. The MRS Prioritization Protocol score for this site was reviewed in FY09.

STATUS

MRSPP SCORE: 04

CONTAMINANTS: Explosives, Metals, Munitions and Explosives of Concern, Munitions Constituents

MEDIA OF CONCERN: Groundwater, Soil

COMPLETED MMRP PHASE: PA/SI

CURRENT MMRP PHASE: RI/FS

FUTURE MMRP PHASE: RD, RA(C), LTM