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Friday, July 15, 2005 I would like to put these questions on the agenda for the council's next study session on July 18, and would appreciate receiving the staffs responses and any available documen- tation for council discussion. I. What is the status of the 1.3 foot-thick layer of pure petroleum ("free product") de- tected in the PIK Tenninal groundwater in 1999? Has it been removed? If so, when, and by whom? How was the clean-up done? Staff Response: This would be a question that we can ask the PCA. They would charge us to provide a specific comment on historical information. The city staff is not the expert on the status of environmental conditions on private property. 2. The MPCA has indicated that further groundwater testing is needed to determine the nature, extent, and possible sources of contamination. Dr. Helgen' s article also notes that it "seems unknown" whether contaminated groundwater is moving to- ward Langton Lake and the residential area to the east. Has groundwater testing been completed to answer these questions? If not, who will conduct this investi- gation, and when? Staff Response: AET (Rottlund's environmental consultant) submitted a work plan to PCA on (June9, June 20). The work plan was approved with conditions by the PCA on (July 5) as evidenced by their response letter. (Attached). The work plan included a plan for further gronnd water investigation in the area identified in the City's regional ground water study to determine the nature, extent and possible sources of contamination. Those investigations are in the process of occurring and wiII be completed by the end of September. Subsequently, AET wiII submit a Re- sponse Action Plan (RAP) and/or Development Response Action Plan (DRAP) to the PCA for review and comment. The RAP and DRAP provides a summary of the re- sults of the investigation as well as a plan for any clean up necessary as redevelop- ment occurs. The PCA is the responsible government agency to approve and moni- tor the clean up under the RAP and DRAP, not the City. ( 3.Has the Midwest Great Dane site been cleaned-up? Ifso, by whom, and to what standard? What documentation does the city have to show what clean-up was done? What further testing will be done to determine whether the Great Dane site is still a source for groundwater contamination, as the 2003 groundwater study in- dicates? Staff Response: The Great Dane site was cleaned up as part of the 1994 redevelop- ment within the Twin Lakes area by Ryan Companies throngh the VIC program which was monitored and approved by the PCA. The primary repository for the documentation and permits is the PCA - the site has received clean up approval by PCA. However, PCA stilI wiII have records that they can provide to the City if re- quested by Council. As this is historical information, there wiII likely be a cost for that research by the PCA. 6