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HWAAP-B32
BUILDING 101-41 CATCHMENT PIT
SITE DESCRIPTION
HWAAP-B32 is an inactive unlined surface impoundment pit located southeast of Building 101-41 and measures 57 by 45 by 3 feet. The impoundment is  heavily eroded and partially filled with windblown sand. A discharge pipe enters the pit from the northwest side. Small piles of dredged soils surround the impoundment. This impoundment operated from 1940 to the early 1970's and received large amounts of waste water containing TNT and RDX. Remedial Investigation work in 1994 included surface soil and hand auger sampling, and cone penetrometer soundings. One surface soil sample, one hand auger sample and three cone penetrometer soil samples were collected and analyzed for explosives and metals. Low concentrations of explosives and metals were detected in the soil. Site soils were treated using a static bioremediation pile for evaluation of technology in 1997.
PROPOSED PLAN
A Closure Decision Document was approved by the NDEP in April 2001.
Decision Document
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