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[SWMU I-1 Table of Contents]

SWMU I-1 Work Plan
RL53 Project, May 2000

Soils: Krum Complex

Known: The incinerator was used only to burn paper trash and has been out of use since the late 1960s. However, the incinerator building was also used to store electrical transformers.

Previous Investigations: Mapping, geophysical survey, soil gas survey

Data Needs: Surface and subsurface soil characterization. In addition, wipe samples will be collected on the inside of the incinerator building.

Rationale for Analytical Program: Based on prior usage at the site as an incinerator in Building 294 used to burn paper trash, chemicals of potential concern include VOCs, PCBs, metals and explosives. Metals (arsenic, barium, cadmium, chromium, copper, lead, mercury, nickel and zinc) are included due to the metallic nature of the waste. Ammunition may include explosives residue therefore, an analysis for explosives will be conducted. VOCs analysis is included in the analytical program to detect typical contaminants associated with a disposal area. PCBs analysis is included because electrical transformers (thay may have contained oil with PCBs) were stored at the site. SVOCs are not included at this site since no evidence of waste burning has been found.

Closure Activities: The following activities constitute an initial investigation of SWMU I-1.

SWMU I-1 Field Effort 1

Review of historical records was completed in 1995. In 1996 a geophysical survey of the area surrounding the incinerator building was completed and a site map was drawn. Figure I-1 is a site map of the incinerator building and surrounding area.

SWMU I-1 Field Effort 2

  1. Notify TNRCC of intent to perform work on the site.

  2. Wipe samples will be collected inside the incinerator building. One will be collected on the floor in the area that the transformers were stored. This wipe sample will be analyzed for PCBs. Another wipe sample will be collected inside the incinerator burn unit or the incinerator stack. This wipe sample will be analyzed for dioxins. The addendum to the FSP includes instructions on proper wipe sampling techniques. An addendum to the Health and Safety Plan has been prepared to ensure the field work will be performed safely.

  3. Surface soil samples will be collected around the building. The field team will collect one surface soil near the incinerator cleanout door. Two others will be collected where stressed vegetation is observed. Surface soils will be analyzed for VOCs, explosives, PCBs, and metals.

  4. Three soil borings will be drilled to characterize the subsurface soils surrounding the building. Three soil samples will be collected from each boring; one at the surface, one near the middle of the boring and one at the total depth. The total depth of each boring will be approximately 20 feet or until bedrock is encountered. Each sample will be analyzed for VOCs, explosives, PCBs, and metals.

  5. Water is not expected to be encountered at the site. However, if water is discovered in any of the soil borings, all borings will be sampled and potentially completed as groundwater monitoring wells as detailed in Section 2.4.1 of the Work Plan Overview. Groundwater will be sampled, where contamination is present, as described in Section 2.4.1 and each sample will be analyzed for VOCs, explosives, and metals identified in the soil samples.

  6. IDW will be handled as specified in the FSP.

  7. If the results of the above work indicate that the site can be closed under RRS1 without any further investigation and/or remediation, a technical/closure report will be prepared and submitted in accordance with state closure requirements. If the site does not meet RRS1 closure requirements, a technical report describing the results of the investigation and recommended additional investigation and/or remediation will be prepared under the RL17 SOW.