Hawthorne Army Depot

Installation Restoration Program
Hawthorne, Nevada

HWAAP-B28D
BUILDING 104-10 EO SPILL IMPOUNDMENT (BASIN)

SITE DESCRIPTION
HWAAP-B28D is an open evaporation pond about 60 feet in diameter, designed to contain spills of ethylene oxide. The pond was reportedly BUILDING 104-10 EO SPILL IMPOUNDMENT (BASIN)operational in 1979 but has not been used since. Investigation in 1994 included 10 soil gas samples and 13 subsurface soil samples collected from 5 borings for VOC & SVOC analyses. Low concentrations of the chemicals of concern were detected in the subsurface soil samples.

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

Decision Document
 

 

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