VELSICOL CHEMICAL CORP. (MICHIGAN)
ST. LOUIS, MI
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Velsicol Chemical Plant
In-place Thermal Treatment
The design for the in-place thermal treatment for Area 2 is under development. Due to the size of Area 2 (3 acres) and the large amount of electrical power that is required, the cleanup will need to be completed in two phases. The drilling of the heaters and extraction wells to remove both vapor and groundwater will begin the week of March 25, 2019.
The same pollution cleaning equipment for the vapor and groundwater employed in Area 1 will be used. Drilling is expected to take most of the summer and soil heating for the first phase is set to begin sometime in October 2019. Heating of soil for the second phase is expected to begin in August 2020 and the project is expected to be done in October 2021. The necessary funding to complete this project is available, including the state's 10 percent cost share.
EPA expects to have a public meeting sometime in May to discuss the Area 2 in-place thermal treatment system.
Downstream Pine River Investigation
Sampling of Pine River stream banks near the high school athletic fields, just downstream from the St. Louis dam, is complete and the results show DDT contamination along the bank area. EPA expects to receive the results from the downstream ecological study from Michigan State University sometime this summer. We are waiting to receive an answer from EPA's Office of Research and Development if they will fund a pilot study evaluating the use of carbon-based materials to remove DDT in floodplain soil.
Velsicol Burn Pit
The design for the in-place thermal treatment system continues. Funding has not been made available to begin this project, and electricity demand for the in-place thermal treatment system will not allow us to begin until after Area 2 is completed on the Velsicol Chemical Plant. The design for the hook-up of 11 homes to city of St. Louis drinking water continues.
The Spring 2019 issue of the Pine River Progress Newsletter is now available here Newsletter - US EPA Pine River Progress - Spring 2019 (PDF) (8 pp, 9.02 MB About PDF)