Superfund Site Profile
Results of the groundwater sampling event conducted on April 9th and 10th, 2008, indicated that no wells contained contaminants above the remedial goals. Additionally, no wells had concentrations above MCLs in the Upper Wilcox aquifer. A second five year review was completed in the summer of 2009. This five year review concluded that this site will be deleted from the NPL, and all groundwater monitoring has been terminated. The Final Closeout Report for the Site was signed by EPA on April 30, 2014, and EPA published a Notice of Deletion for the Site in the Federal Register on August 14, 2014. No comments were received on the proposed deletion and the site was deleted from the NPL effective September 29, 2014.
The 7-acre Monroe Auto Equipment Co. (Paragould Pit) site is located near Paragould, Arkansas. Monroe Auto Equipment deposited nearly 15,000 cubic yards of alum and lime electroplating sludge/slurry at the site in an abandoned sand and gravel pit. These activities contaminated soil and groundwater with solvents, degreasing agents and metals. Operation and maintenance activities and monitoring were started after construction of the remedy was completed. The results of the groundwater sampling indicated that no wells contained contaminants above the remedial goals. The five year review completed in 2009 recommended that the site be deleted from the NPL because all groundwater samples indicated that the remedial goals for the site had been met. The Final Closeout Report for the Site was signed by EPA in April 2014 and the Site was deleted from the NPL on September 29, 2014.
National Priorities Listing (NPL) History
Proposal Date:October 15, 1981
Final Date: August 29, 1990
Deletion September 29, 2014
TOPICS IN FOCUS
The Record of Decisoin sets forth the selected remedy for the Site, which involves actions to address 1,1 DCE, 1,2 DCE, Xylenes and chromium and lead in the soils and groundwater. This was the only operable unit for the site and the selected remedial action is intended to address all areas of concern at the Site. The selected remedy is a comprehensive approach for the Site and addresses all current and potential future risks caused by the soil and ground water contamination. The major components of the remedy are:
Soil and Sludge: (Alternative 4B)
1) Cap the sludge disposal area in accordance with RCRA Subtitle C requirements.
2) Install a French drain around the area of sludge deposits. The French drain would intercept perched ground water before it enters the contaminated area.
3) Prohibit future development of the Site.
4) Conduct environmental monitoring to ensure effectiveness of the remedial action.
5) On April 19, 2000, the Arkansas Department of Environmental Quality issued an Amendment to the Proposed Plan outlining a new remedy that calls for the waste to be excavated and transported to a secure, licensed landfill.
Ground Water: (Alternative 2)
1) Reduce contaminant concentrations through naturally attenuating processes such as biological/chemical/physical degradation, adsorption and dispersion.
2) Place ground water use restrictions on the Site property.
3) Conduct ground water monitoring of monitoring wells on the Site and near the Site and residential wells.
4) Implement immediate and secondary contingency actions if necessary to protect human health and the environment.