Diamond Shamrock Corporation Landfill

• Site Profile
• Administrative Record Index: OU1 (PDF: 7 pp., 274K), ESD (PDF: 1 pp., 60K), Removal (3 pp., 79K)
• Additional Site Documents including Five Year Reviews, Records of Decisions (ROD) and Explanation of Significant Differences (ESD).
• For documents not available on the website, please contact the Region 4 Freedom of Information Office (http://www.epa.gov/region4/foiapgs/submit.htm).

Site Background:
The Diamond Shamrock Site comprises approximately 8 acres of land near the northwest margin of the town of Cedartown, in Polk County, Georgia. The site is located north of West Girard Avenue, adjacent to and east of Cedar Creek and is owned by Henkel Corporation. Prior to 1968, the land use of the Site area included agricultural activities. In 1972, approximately 1,500 gallons of oil pitch and 600 to 800 drums containing reportedly obsolete, off-specification products and raw materials from chemical plant manufacturing operations were buried in unlined disposal trenches at the Diamond Shamrock Site. On June 27, 1980, the Diamond Shamrock Corporation (DSC) which was the owner/operator reported to Georgia Environmental Protection Division (EPD) of the Department of Natural Resources the results of an internal investigation concerning waste material buried on Site. DSC reported that between 600 and 800 drums and approximately 1,500 gallons of material were buried at the Site.

Cleanup Progress: Construction Completed
In 1990, Henkel Corporation and EPA entered into an Administrative Order by Consent for a Removal Action at the site. EPA directed the removal of approximately 1,800 cubic yards of non hazardous waste and debris to an approved off-site industrial landfill. Approximately 1,500 cubic yards of waste-impacted soil were treated by bioremediation and approximately 8,400 gallons of liquid waste were incinerated at a licensed Hazardous Waste Disposal Facility, in accordance with the same order.

Henkel conducted a Remedial Investigation and Feasibility Study under an Administrative Order on Consent to determine the nature an extent of any remaining contamination at the site. In 1994, EPA selected a remedy which included additional sampling, deed restrictions, completion and maintenance of site access restrictions. The remedial design and remedial action were implemented on September 29, 1995, by Henkel under a Consent Decree. The site is currently in long-term remedial action (natural attenuation) and operation and maintenance. A five-year review was conducted in May of 2000. According to the five-year review report, the remedy stipulated in the Record of Decision remains protective and should be continued.

The Second Five Year Review was conducted in 2005. According to the review, the remedy remains protective of human health and the environment and should be continued. The next five year review is scheduled for 2010.