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MARION COUNTY
INDIANAPOLIS
Congressional District # 7
SOUTHSIDE SANITARY LANDFILL
EPA ID# IND980607360Last Updated: April, 2008
Site Description
The Southside Sanitary Landfill (SSL) occupies 312 acres in Indianapolis, Marion County, Indiana. The SSL facility is located on the west bank of the White River, one-half mile south of the intersection of Kentucky and Warman Road. The site location is approximately 4.5 miles southwest of downtown Indianapolis. The boundaries of the site include Eagle Creek and White River to the east and south respectively, portions of Starkis Lake, and a Martin Marietta limestone mine to the west. The SSL is an active solid waste disposal facility that began landfill activities in 1971. In 1974, the local government licensed the northern side of the site for disposal of solid waste. The first excavated area was filled by dumping refuse, and covering with a layer of soil. A second disposal area was excavated 150 feet to the south. Approximately seven to eight thousand people live within a 3-mile radius of the site and use the groundwater as a drinking water supply. The distance from the site to the nearest residence is two miles. Nearby Eagle Creek, White River, and Fall Creek are used for recreational activities. An estimated four million cubic yards of waste, including coal tar, asbestos, iron oxide and clarifier sludges, and paint waste, have been buried at the landfill. Access to the site is restricted.
Site Responsibility
This site is being addressed through federal, state, and potentially responsible parties' actions.Threats and Contaminants
Groundwater is contaminated with heavy metals including arsenic, chromium, cadmium, and nickel. On-site soils are contaminated with polycyclic aromatic hydrocarbons (PAHs).
Cleanup Progress
In 1986, the SSL owners signed an Agreed Order (AO) with the Indiana Department of Environmental Management (IDEM) to construct both a hydraulic cut-off barrier (known as a slurry wall) and a leachate collection system, in order to isolate the groundwater beneath the landfill from the surrounding groundwater. Thus, contaminated groundwater is prevented from leaving the site, and the potential threat to the surrounding media has been eliminated. Additionally, the AO included a performance monitoring network; cover and grading requirements; operating procedures; closure and post-closure procedures and requirements; and the establishment of both closure and post-closure funds. The established well network monitors groundwater levels and quality both inside and outside the slurry wall. A Remedial Investigation (RI) was conducted between January 1992 and November 1993. The RI results and risk assessment evaluation established that the chemical contamination discovered at the site, with existing remedial measures in place, does not pose unacceptable risk to human health and the environment. The RI concluded that the remedial measures implemented per the 1986 AO were adequately protecting the surrounding media from the landfill contamination. A Record of Decision (ROD)was signed in September 1995. Based on the RI conclusions, a "No Further Action" remedy was selected in the ROD. Since 1986, the 1986 AO has served as the operating permit for the site. The site was deleted from the NPL on July 3, 1997. Five-year reviews were completed for the site in September, 2000 and September 2005. The next five-year review will be conducted in 2010.
Contacts
Remedial Project Manager, U.S. EPAlinda kern (kern.linda@epa.gov)
(312) 886-7341
Community Involvement Coordinator, U.S. EPA
janet pope
(312) 353-0628
Aliases
SOUTHSIDE SAN DSPL & TRANSFER CO INCSOUTHSIDE SANITARY LDFL