Superfund Site Profile

In summary, the surface soils and subsurface soils are contaminated with pesticides, volatile organics, and heavy metals. The onsite surface water bodies and groundwater are contaminated with volatile organics and heavy metals.  The sediments are contaminated with pesticides and heavy metals.


Eighty (80) Solid Waste Management Units (SWMUs) (including approx. 30 sumps and 10 drum/drum storage/drum crushing areas) have been identified onsite to date that are deemed areas of concern



The 48-acre Cedar Chemical Corporation site is located in West Helena, Arkansas. The site is within Helena-West Helena Industrial Park and includes six former production units, support facilities and an office. Operations began at the site in 1970 and included dinoseb production. From 1971 to 2002, manufacturing of agricultural and organic chemicals under various owners and operators took place. Operations contaminated soil, sediment, surface water and groundwater. EPA is working to identify potentially responsible parties (PRPs) for the site. Site investigations are ongoing.

Current Status

In March of 2016, Environmental Protection Agency (EPA) entered into an Administrative Order on Consent (AOC) with Potentially Responsible Parties (PRPs) to conduct a Remedial Investigation / Feasibility Study (RI/FS).  EPA is in the process of conducting an initial round of surface water, groundwater, sediment, and soil sampling in early February 2017 to gather current information to update a 2008 conceptual site model (CSM) for the site.  Creating an accurate CSM for the site is a first step in understanding the nature and extent of contamination for the site.  Once EPA has a thorough understanding of all contaminates  a detailed analysis will be conducted to best prepare a plan for remediating the site.