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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:  Record of Decision
ROD ID:  EPA/ROD/R05-93/235
ROD Date:  09/28/1993
Operable Unit(s):  01
Media:  Debris, GW, SW
Contaminant:  VOCs, Other Organics, Metals, Inorganics
Abstract:  The 39-acre Lakeland Disposal Service is an inactive landfill located near Claypool, Kosciusko County, Indiana. Land use in the area is predominantly agricultural, with some residences situated to the north and west of the site. In addition, several wetland and woodland areas are situated adjacent to Sloan Ditch, an agricultural drainage ditch which discharges to Palestine Lake, and subsequently, to the Tippecanoe River. The residents living in the vicinity of the site use private wells to obtain their drinking water supply. The site includes a "hot-spot" drummed waste disposal area, a general trash area, a drying bed area, and several industrial waste areas. Prior to 1974, the site was used for agricultural purposes. From 1974 to 1978, Lakeland Disposal Service (LDS) accepted general refuse, including plastic, metal, wood, leaves, paper, cardboard, and certain specific industrial wastes, including paint sludge; sludge and filter sand containing metals; cyanide, zinc, and chrome plating liquid; sugar contaminated with bromochloromethane; and oils and oily wastewater. State records indicate that at least 18,000 drums of waste, 8,900 tons of plating sludge, and more than 2,000,000 gallons of plating sludge containing metals were disposed of onsite. During site operations, the landfill operator violated numerous permit regulations by improperly accepting and disposing of waste in the landfill. These violations included disposing of sludge in trenches with little or no cover; depositing uncovered barrels of waste in water; contaminating run-off water, the adjacent stream, and the low areas with paint sludge and refuse; dumping liquid waste into the general refuse area; burning in the open; and not providing proper surface drainage. In 1977, the State denied renewal of the operating permit due to failure of the landfill to maintain a minimum of 50% acceptable inspections over the prior two-year period. After the landfill operator appealed the decision, site operations continued until 1978. Because the operator failed to close the site in 1978, the State initiated enforcement actions and required two additional ground water monitoring wells to be installed with continued monitoring. From 1978 to 1983, the State conducted several inspections onsite that identified onsite leachate problems. In 1979, residential mobile homes were built onsite, and, in 1982, the State conducteda methane gas survey that detected high methane concentrations beneath one of the mobile homes. In 1981, the State required that the landfill owner continue onsite ground water monitoring until 1984, and seal any leachate seeps until 1983. In 1983, the County required that all residents vacate the site. This ROD addresses a first and final remedy for the onsite ground water contamination, the landfill waste material in the "hot-spot" area, and surface water. The primary contaminants of concern affecting the debris, ground water, and surface water are VOCs, including benzene, PCE, TCE, toluene, and xylenes; other organics, including PAHs and phenols; metals, including arsenic, chromium, and lead; and other inorganics. SELECTED REMEDIAL ACTION: The selected remedial action for this site includes excavating, temporarily storing onsite, and separating approximately 3,300 drums containing waste material from the hot-spot area of the landfill; handling, sampling, and disposing of an estimated 1,650 intact or partially intact drums offsite; sorting approximately 500 yd[3] of non-containerized waste material and any landfill waste and debris encountered during excavation of the slurry wall; disposing of RCRA hazardous waste material offsite based on TCLP testing; reconsolidating non-hazardous waste onsite in the landfill and installing a sanitary landfill cap with a 6-inch vegetative soil cover and a 12inch gas collection layer, with either active or passivegas collection vents beneath the compacted layer; installing a soil- bentonite slurry wall around the perimeter of the landfill to contain onsite ground water in the upper aquifer; providing for a contingent remedy to store and treat extracted ground water onsite, using filtration, and air stripping if necessary, with onsite discharge of the treated water through Sloan Ditch; installing extraction wells along the downgradient of the slurry wall to maintain a water table elevation within the slurry wall below the water tableoutside the slurry wall; conducting a wetlands assessment to determine if any significant portions of the wetlands are affected by the installation of the cap and the slurry wall, with installation of an adjustable weir in Sloan Ditch to maintain proper water levels in the wetlands and conducting any additional mitigation, replacement, and/or restoration of the wetlands, if necessary; installing an onsite ground water storage and treatment system, based on further studies; fencing the site; monitoring ground water and surface water; and implementing institutional controls, including deed, ground water, and land use restrictions. The estimated present worth cost for this remedial action is $10,473,300, which includes an estimated annual O&M cost of $174,000 for 1.5 years. PERFORMANCE STANDARDS OR GOALS: Debris and ground water cleanup goals are based upon RCRA, the more stringent of SDWA MCLs or State water quality standards, and an EPA-action level for lead of 15 ug/kg or 15 ug/l. Chemical-specific cleanup goals were not provided. INSTITUTIONAL CONTROLS: Institutional controls, including deed, ground water, and land use restrictions, site access restrictions, and possibly well abandonment, will be implemented to restrict access, use, and development of the site, to protect the integrity of the cap, and to prevent future development from possibly interfering with other remedial components.
Remedy:  This remedy is intended to be the final action for the site. This remedy addresses all contaminated media at the site.

The major components of the selected remedy include:
- Construction of an Indiana Sanitary Landfill Cap, in accordance with Indiana Solid Waste Management Regulations contained in 329 IAC 2-14-19 and RCRA Subtitle D cover requirements for surface containment of the waste material;
- Construction of a soil-bentonite slurry wall and extraction wells for containment of the on-site groundwater in the upper aquifer;
- Storage, treatment, if necessary, to meet National Pollution Discharge Elimination System (NPDES) requirements, and discharge of recovered groundwater.
- Removal of drummed wastes in the hot-spot area of the landfill site, and off-site treatment and/or disposal of the drums and non-containerized waste;
- Fencing to prevent access, groundwater advisories, and possible well abandonment and deed restrictions to prevent future development from interfering with remedial components, as provided for by Indiana regulations;
- Construction of an adjustable weir in Sloan Ditch, if necessary, to maintain proper water levels in the adjacent wetlands;
- Excavation and removal off-site of any landfill wastes and debris encountered during excavation of the slurry wall, which exhibit RCRA hazardous waste characteristics per Toxicity Characteristic Leaching Procedure (TCLP) test.
- A wetlands assessment 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, if necessary.
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