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Record of Decision System (RODS)



Address:  RURAL ROUTE 1 
City & State:  CLAYPOOL  IN  46510
EPA ID:  IND064703200
EPA Region:  05
NPL Status:  Currently on the Final NPL
ROD Type:  Amendment
ROD ID:  EPA/541/R-99/146
ROD Date:  10/15/1998
Operable Unit(s):  01
Media:  Soil
Contaminant:  VOC
Abstract:  The Lakeland Disposal Service Inc. (LDL) Site is located approximately 3.5 miles northwest of Claypool, Indiana. The site is located in Section 12, Township 31, Range 5 East, Kosciusko County, Indiana, and is bounded on the west by County Road 450 West. The site consists of approximately 39 acres. An agricultural drainage ditch, called Sloan Ditch, runs parallel to the eastern and northern edges of the site. Several wetland areas exist along Sloan Ditch. Wooded areas are located east of the landfill along Sloan Ditch and the adjacent wetlands. Land use in the area surrounding the site is predominantly agricultural. Several residences are located on the west side along County Road 450 West. The nearest residence north of the site is 200 feet from the site's northern boundary. All of the homes in the vicinity of the site rely on their own private wells to provide drinking water and water for general use. The primary stream in the immediate vicinity of LDL is Sloan Ditch, which discharges into Palestine Lake, which then continues to discharge to the Tippecanoe River via Trimble Creek.

The site is an inactive landfill. The hazardous waste was caused by dumping of 18,000 drums of waste materials. Also, approximately 8,900 tons of plating sludge and more than 2 million gallons of plating waste were disposed of on the site. Spent filter sand; wastewater treatment sludge; sewage sludge; and cyanide, zinc, and chrome plating liquids were also disposed of in the landfill. Most of the waste is concentrated in one area, named Waste Disposal Area 2.

A Record of Decision addressing the LDL site was completed in September, 1993.

A Record of Decision Amendment addressing Waste Disposal Area 2 was completed in October 1998.
Remedy:  This summary describes the selected remedy for the entire site. Only that portion of the remedy which applies to Waste Disposal Area 2 represents the amended remedy. The overall approach to address the rest of the site consisting of the sanitary landfill cap, slurry wall, and wetland mitigation plan remain unchanged from the 1993 Record of Decision. Waste material contained within Waste Disposal Area 2 would be excavated and conveyed to a unit on-site. The maximum excavation depth shall be 15 feet below grade or until the water table is reached, whichever is shallowest. If intact drums are excavated, the contents of the drums would be removed and treated along with the contaminated soils. Soils and sludges would be treated on-site using low-temperature thermal desorption (LTTD). The soils and sludges would be transported to the on-site LTTD unit and placed into feed hoppers. They would then be fed into a rotating dryer, where the contaminated soils and sludges would be heated at relatively low temperatures (300 to 800 degrees F) which would result in the organics in the soils and sludges to volatilize into the air stream within the unit. The vaporized contaminants removed from the soils and sludges would be collected and condensed. These condensed contaminants could be Resource Conservation and Recovery Act (RCRA) characteristic and would be tested by the Toxicity Characteristic Leaching Procedure (TCLP) before they are sent off-site. If the residuals test characteristic, they would be sent to a RCRA permitted facility for treatment before disposal. Characteristic soil would be treated to render the waste non-hazardous, reduce volatile organic compounds (VOC) concentrations by 90 percent, or meet the applicable land disposal restrictions, whichever is lowest. The treated soils would then be stockpiled and used to backfill the open excavation. The area would subsequently covered by thesanitary landfill cap and contained within the slurry wall system. A soil-bentonite slurry wall and extraction wells for containment of the on-site ground water in the upper aquifer would be constructed. The recovered ground water would be stored, treated, and discharged. Fencing would be put in place to prevent access. Groundwater advisories and possible well abandonment and deed restrictions to prevent future development from interfering with remedial components would be enacted. An adjustable weir would be constructed in Sloan Ditch to maintain proper water levels in the adjacent wetlands. A wetlands assessment would be completed to determine the portions of the wetlands that are affected by the installation of the selected remedy. Based on this assessment, the Remedial Action will include a program to mitigate, replace, and/or restore wetlands.

Estimated Capital Cost: $1,890,000 (Waste Disposal Area 2)
Estimated Annual O & M Cost: $0
Estimated Present Worth Cost: $1,890,000
Text:  View full-text ROD [ 249K ]
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