LINE 2 AMMO LAP (ARTILLERY/SHAPED)
SITE DESCRIPTION
The IRP site consists of the contamination from past munitions production. Any contamination from current activities will be addressed under compliance (non-ER,A funding). The past contamination has resulted from the practice of washing spilled explosives from floors, equipment and sump failures.
Line 2 is a production line that has been in operation since the inception of IAAAP, except for a brief hiatus from 1947 to 1949, and occupies nearly 140 acres, including 31 buildings and covered walkways. It is used to load, assemble and pack 120 mm ammunition and blank ammunition. The melt building appears to be where the highest volumes of wastes were produced. The buildings include equipment rooms, explosives magazines and nine sump buildings.
The PA/SI was completed in 1991, and an initial RI was completed in May 1996. The Interim Soil ROD requires the removal of an estimated 1950 cy (885 cy of metals only, 770 cy of explosives only, and 295 cy of metals and explosives) of soil contaminated with metals and explosives. Per the ROD, this soil will be taken to the Inert Disposal Area [IDA(IAAP-020)] and sorted by contaminant level and type.
CLEANUP STRATEGY
This site is included in the PBC awarded in 2004.
The soil contaminated with explosives and/or metals at this site have been successfully completed by excavation, in accordance with the RAOs established in the final ROD to protect human health and the environment. Any contaminated soil under the infrastructures of IAAAP, and therefore inaccessible, was left in place. Once confirmation samples determined that all accessible contaminated soil had been removed, each excavation was backfilled with clean soil to the original grade, compacted, and then reclaimed to original conditions. All excavated soil was transported to Trench 6 in the IDA for later treatment. A total of 3,170 cy of contaminated soil was removed from Line 2 in the Summer/Fall of 2006.
This site is considered Response Complete (RC) as of September 2007 as documented in the Remedial Action Report for OU1 Soils Phase 5, 7, and 8 Sites and Installation Wide Ecological Evaluation.