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At end of 2019 WDNR requested additional site characterization work in support of closure. A Work Plan was submitted on December 13, 2019 for an expanded vapor intrusion study and additional well installation/groundwater sampling. The Work Plan was approved by WDNR on January 7, 2020. The expanded vapor intrusion study is in process of being implemented with ongoing data submissions to WDNR (to date no air standard excrescences detected). Two additional wells have also been installed and additional groundwater sampling completed. All data submitted to WDNR.
March 3, 2020 received PFAS sampling requirement letter from WDNR. Submitted PFAS sampling work plan to WDNR on April 2, 2020. Received WDNR approval of work plan July 7, 2020. In process of scheduling PFAS sampling.
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