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HWAAP-A09B
BATTERY DISPOSAL AREA
SITE DESCRIPTION
HWAAP-A09B is an unlined earthen pit located 0.5 miles west of the 100 group area. The pit occupies approximately 1 acre and was used as an open dumping ground  for all types of batteries, smokeless powder (propellant), and rocket packing material. The pit was used from the 1950s to the 1960s. Ground water at this site is reported to be between 70 and 80 feet bgs. Flooding in 1992 exposed a 10-foot thick wall of batteries and rocket packing corks, and washed the waste downstream. Following the flood the batteries were removed by HWAD in 1993 and placed in a permitted off-site landfill. In 1994, remedial investigations completed included collection of surface and hand auger samples and cone penetrometer soil samples. Three surface soil samples, three hand auger samples and two cone penetrometer samples were collected and analyzed for metals and explosives. No explosives were detected. Lead (160 mg/kg), barium (510 mg/kg) and beryllium (1.1mg/kg) were detected at moderate concentrations. The lead concentrations decrease significantly with depth. Site was re-graded in 1997.
PROPOSED PLAN
A Closure Decision Document was approved by the NDEP in March 2000
Decision Document
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