Site
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Storage Area #1
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Former Fire Training/ Landfill Burning Area
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Pesticide Handling Area
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| Site Description/Waste Disposal History |
- 42-acre area located along the railroad yard in the northeastern portion of the site.
- Since 1942, incoming raw materials have been sorted here for distribution to the appropriate receiving facility.
- No hazardous wastes were produced here, but some of the incoming raw materials were classified as hazardous.
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- Fire Training Area is a gravel pit 30 feet in diameter located northwest of the Main Test Area.
- Wastes were burned in this area approximately 20 times per year from 1973 to 1978.
- Liquids drain from the burn area via a pipe into a small pond to the west.
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- Located in the north central part of the site.
- A new Pesticide Storage building used to store and mix pesticides and herbicides replaced an old building in 1984.
- Reportedly, all liquid from the sumps is recycled, and no discharge, spills, or releases have been reported.
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| Investigation/Environmental Monitoring Results |
- Groundwater: No volatile organic compounds (VOCs), semivolatile organic compounds (SVOCs), or inorganics were detected above health-based comparison values (CVs).
- Surface Soil: Arsenic (18 parts per million [ppm]) was detected above CVs. Soils naturally contain low levels of arsenic. Background concentrations of arsenic range from 1 to 40 ppm with a 5 ppm average.
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- Shallow Groundwater:VOCs detected above CVs (maximum concentrations are in parentheses) included: TCE (680 ppb), PCE (15 ppb), and 1,1-DCE (300 ppb). Cadmium detected (6 ppb) slightly above background and some of its CVs. Other metals detected below CVs.
- Deep Groundwater: 1,1-DCE (150 ppb) and methylene chloride (9 ppb) detected above CVs in on-site wells.
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- Groundwater: No pesticides were detected above CVs.
- Surface Soil: Aldrin (0.0483 ppm), chlordane (4.92 ppm), and dieldrin (1.1 ppm) were detected above CVs.
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| Corrective Activities and/or Current Status |
- A RCRA (Resource Conservation and Recovery Act) Feasibility Investigation (RFI) has been completed.
- Draft report recommends no further action.
- No further action planned.
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- RFI is complete.
- Long-term monitoring of groundwater is ongoing.
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- RFI is complete.
- Remediation of pesticide residues reportedly conducted on old facility and surrounding area before construction of new facility.
- Resampling of soils is planned for April.
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| Exposure Conditions |
- No past, current, or anticipated future use of groundwater in site area.
- Access to the area is not restricted.
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- Shallow groundwater is not used as a drinking water source.
- Private wells (deep groundwater) were used in the past in residential areas upgradient of the site.
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- No past, current, or anticipated future use of groundwater in site area.
- Access to the area is not restricted.
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| Identified Data Gaps |
The site area is not fenced, and it is not known whether children or others access the area now or in the past. |
The exact date when deep groundwater was first used as a drinking water source is unknown. |
The site area is not fenced, and it is not known whether children or others access the area now or in the past. |