[Home]

[SWMU B-29]

RL17 Project, February 1996

Soils: Crawford and Bexar stony soils

Known: Records indicate that SWMU B-29 is the site of an old quarry used for the disposal of miscellaneous solid waste, munitions, and construction debris (ES, 1993b).

Previous Investigations: A field investigation revealed a drum of nickel penetrate in the quarry.

Data Needs: Map, geophysical survey, and analytical data for surface 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-29.

1. Review historical records as described in Section 2.4.1 of the Work Plan Overview. Notify CSSA staff of the potential for asbestos at the site, and of sampling schedule.

2. Field map the SWMU as described in Section 2.4.1 of the Work Plan Overview.

3. Verify that the drum of nickel penetrate has been removed from the SWMU. If not, notify CSSA staff.

4. Conduct a geophysical survey of the SWMU as described in Section 2.4.1 of the Work Plan Overview.

5. Sample and analyze surface soils from three locations as described in Section 2.4.1 of the Work Plan Overview. Analyze each sample for SVOCs, VOCs, explosives, and metals (as outlined in the FSP). Compare analytical results to background level for soils (Section 2.4.1 of the Work Plan Overview).

1. If any surface samples taken during the first field effort have constituent concentrations exceeding background levels, or if subsurface anomalies are evident, all three soil borings will be drilled to characterize the subsurface soils.

1. Locate, receive approval, and drill three soil borings at surface sample locations exceeding background concentration levels as described in Section 2.4.1 of the Work Plan Overview.

2. Obtain two samples per boring at middle and total depths (surface soils were previously sampled) in accordance with Section 2.4.1 of the Work Plan Overview.

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

4. 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, explosives, and metals identified in the surface soils (as outlined in the FSP).

2. Handle the IDW in accordance with the FSP.