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[SWMU B-12]

SWMU B-12 Work Plan

RL17 Project, February 1996

Soils: Krum complex

Known: SWMU B-12 was reportedly used as a landfill area for large pieces of scrap metal and weapons (ES, 1993b).

Previous Investigations: No anomalies were detected during geophysical surveys conducted during an investigation of high priority solid waste management units (Parsons ES, 1995c).  However, the entire site was not surveyed due to large metal pieces located near the surface.  Figure B12-1 shows the extent of the site.

Data Needs: Analytical data on groundwater, surface and subsurface soils.

Closure Activities: The field team should be observant for UXO. The following field activities will be performed to gather data for TNRCC closure submittal of SWMU B-12.

SWMU B-12 Field Effort 1

  1. Review historical records as described in Section 2.4.1 of the Work Plan Overview.

  2. Locate and receive approval for three soil borings at the approximate locations shown on Figure B12-1 as described in Section 2.4.1 of the Work Plan Overview.

SWMU B-12 Field Effort 2

  1. Three soil borings will be drilled to characterize the subsurface soils.

  1. Drill the three soil borings at the approved locations as described in Section 2.4.1 of the Work Plan Overview.

  2. Obtain three samples per boring near the surface (0-2 foot depth), middle, and total depths as described in Section 2.4.1 of the Work Plan Overview.

  3. Analyze each sample for SVOCs, VOCs, metals, and explosives (as outlined in the FSP).

  1. Water is not expected to be encountered at the site.  However, if water is discovered in any of the soil borings, all three borings will be sampled and potentially completed as groundwater monitor wells as detailed in Section 2.4.1 of the Work Plan Overview.  Sample groundwater, where present, and analyze each sample for SVOCs, VOCs, metals, and explosives found (as outlined in the FSP).

  2. Handle the IDW in accordance with the FSP.