APRIL 14, 2022 - CONSENT DECREE
Chemtronics, Inc. and Northrop Grumman Systems Corp. have agreed to conduct a remedial action at the Chemtronics Superfund Site (the Site) in Swannanoa, Buncombe County, North Carolina. The settlement agreement is memorialized in a Consent Decree, which requires the companies to spend an estimated $18.2 million to remediate contaminated soil and groundwater at the Site. The soil remediation component of the agreement requires the excavation and off-site disposal of approximately 700 cubic yards of contaminated soil. The groundwater remediation component requires enhanced in-situ bioremediation (EISB) for contaminated groundwater. EISB involves the placement of microbes, nutrients, and/or other amendments into groundwater to enhance biological degradation of contaminants. The groundwater will also be monitored to evaluate the reduction in the mass, toxicity, mobility, volume, and concentration of contaminants. All remedial work by the companies will be overseen by the U.S. Environmental Protection Agency and its contractors.
This remedial action is intended to be the final remedy for the Site.
The Site is the location of an inactive manufacturing facility that operated from 1952 to 1994. Various waste products and byproducts associated with the former manufacturing operations were generated and disposed of on-site, including chlorinated and non-chlorinated solvents, acidic solutions, and solid waste such as gloves and coveralls. Northro