Hawthorne Army Depot

Installation Restoration Program
Hawthorne, Nevada

HWAAP-B28A
BUILDING 108-20 PO SPILL IMPOUNDMENT

SITE DESCRIPTION
HWAAP-B28A is a lined surface impoundment approximately 200 feet square and 8 feet deep that was designed to contain spills of propylene oxide. The BUILDING 108-20 PO SPILL IMPOUNDMENTimpoundment was never used for its originally proposed purpose, however, it was used for the disposal of ethylene oxide. Investigation in 1994 included 7 subsurface soil samples from 5 locations for VOCs analyses. The chemicals of concern were detected at low concentrations.

PROPOSED PLAN
A Closure Document was approved by NDEP on 22 Nov 1999.

Decision Document
 

 

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