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Amnicola Dump
National Information
Photos/Multimedia
Site photo goes here.
- Additional Site Photos
- Site Video
Additional Resources
- Site Cleanup Terms - can be found in EPA's glossary
- EPA Guides to Cleanup Technologies
- Superfund Community Involvement (PDF) (17 pp, 130K, About PDF)
Site Summary Profile
EPA ID: TND980729172Location: Chattanooga, Hamilton County, TN
Lat/Long: 35.062500, -085.276380
Congressional District: 03
NPL Status: Proposed: 12/30/82; Final: 09/08/83; Deleted: 04/30/96
Affected Media: Debris, Ground water, Soil
Cleanup Status: Deleted from the NPL - Physical cleanup activities have been completed.
Site Reuse/Redevelopment: Potential for Commercial/Light Industrial
Site Manager: Carolyn Callihan (callihan.carolyn@epa.gov)
Site Background
The Amnicola Dump site is an 18-acre inactive construction debris disposal site located in Chattanooga, Hamilton County, Tennessee. During the 1930s the site was reportedly used for clay mining operations, which left several water-filled pits at the site. From 1970 until 1973, the City of Chattanooga operated a dump on the property. The site owner reportedly also handled, stored, and burned creosote-contaminated railroad ties on the site during this time. Dump operations were closed in 1973 due to concerns over unauthorized dumping and the discharge of leachate from the site into the Tennessee River.
Approximately 150,000 people live within a 2-mile radius of the site.
Threats and Contaminants
Former dumping activities led to site contamination with a variety of contaminants including pesticides, polycyclic aromatic hydrocarbons, volatile organic compounds, heavy metals, polychlorinated biphenyls, inorganics, and persistent organic pollutants. Elevated levels of 10 inorganic contaminants were detected in the leachate streams at the site.
Ground water monitoring indicated that chromium levels exceeded the primary drinking water standards in one monitoring well. No site-related contaminants have been found in the city's water supply. Direct contact with contaminated soil could have posed a threat to human health and the environment prior to site cleanup.
Site Cleanup Plan
The Record of Decision (ROD) for the site was issued in 1989. Major cleanup elements for the site included:
- Excavation and screening of contaminated soil/debris.
- Treatment of contaminated soil on site.
- Off-site disposal of contaminated debris. Debris that is confirmed to be clean may be disposed of on site.
- Placement of solidified mass on site, above the ground water table, and outside the 100-year floodplain.
- Monitoring of ground water quality for four years.
- Public health assessment conducted five years after remedial action.
An Explanation of Significant Differences was issued in 1993, which changed the soil treatment selected in the 1989 ROD. Instead of on-site treatment of contaminated soils, these would be sent for off-site disposal along with the contaminated debris.
Cleanup Progress
All cleanup activities specified in the ROD have been completed. These activities included excavation and disposal of contaminated soil and debris off site and backfilling the area with crushed stone. The threat of exposure to contaminants has been greatly reduced by the excavation and off-site disposal of contaminated soil.
Quarterly ground water monitoring to ensure the continued effectiveness of the remedy was discontinued in 2007 at the recommendation of the first and final Five-Year Review of the site.
Site cleanup activities have been led primarily by potentially responsible parties (PRPs) with oversight by EPA.
Enforcement Activities
In 1991, EPA signed a Consent Decree with PRPs for the design of the remedy and implementation of the remedial action.
Community Involvement
EPA has conducted a range of community involvement activities at the Amnicola Dump site to solicit community input and to ensure that the public remains informed about site activities throughout the site cleanup process. Outreach activities have included public notices, fact sheets, press releases, and public meetings on cleanup activities and updates.
Future Work
The site was deleted from the NPL in May 1996.
No Five-Year Reviews are required for the site.
No further updates are warranted at this time.
Site Administrative Documents
Site Repository
For more information or to view any site-related documents, please visit the site information repository at the following location. As new documents are generated, they will be placed in the information repository for public information.
Chattanooga Hamilton County Public Library
1001 Broad Street
Chattanooga, TN 37402
Administrative Record Index
- OU-1 (PDF) (12 pp, 603K, About PDF)
- ESD (PDF) (1 pg, 26K, About PDF)
- Deletion (PDF) (2 pp, 68K, About PDF)
For documents not available on the website, please contact the Region 4 Freedom of Information Office.