Hawthorne Army Depot

HWAAP-H04
NAVYSIDE LANDFILL

SITE DESCRIPTION
HWAAP-H04 is an inactive landfill covering approximately 11 acres. The specific period of operation and the types of material that was disposed in the landfill are not known. Based on a site visit and interviews it appears that the Navy Side Landfill contains primarily domestic, office, and general industrial/commercial waste generated from the operations and maintenance at the base. Soil samples were collected in 1997. The only metal found with a concentration greater than its maximum expected background level was mercury (0.2 mg/kg and 0.3 mg/kg) none exceeded the PCG for mercury of 24 mg/kg. Two pesticides 4,4-DUE and 4,4-DDT were found in only one of the nine soil samples and at a maximum concentration of 0.002 mg/kg. No concentrations of explosives, VOCs, or herbicides were found in any of the subsurface soil samples. Limited unexploded ordnance was found at the site. Long term monitoring started in 1997. An unknown source of VOCs and SVOCs in the groundwater is being investigated.

None of the VOCs or SVOCs in groundwater were higher than their respective action levels. No explosive compounds were found in groundwater.

Aerial Photo (black & white -- 83KB)

PROPOSED PLAN
A Closure Decision Document was approved by the NDEP in February 2002.

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