Comprehensive Remediation Strategy to Address Soil and Groundwater Contamination at an NPL Site
The 388-acre Hanlin-Allied-Olin NPL site is a former chemical manufacturing complex near Moundsville, West Virginia. The southern portion of the facility produced chloromethane products and used the chlor-alkali (mercury cell) process to manufacture chlorine and sodium hydroxide. The northern portion of the facility produced numerous semi-volatile intermediates for the manufacture of plastics and other synthetic materials. The long-term objective for the site entailed cost avoidance through the proactive development of two significant remedial components: (i) a major removal action using on-site disposal, and (ii) control of chlorinated solvents in an aquifer used downgradient of the site for a municipal water supply. Both objectives related to a third objective of minimizing the Remedial Investigation/Feasibility Study (RI/FS) scope, thereby reducing long-term cost uncertainty.
