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From:Jack Griffin <br />To:Sophia Jensen <br />Cc:Chad J. Isakson, PE, LEED AP <br />Subject:8012 Hill Trail impervious surface variance request <br />Date:Wednesday, December 20, 2023 5:49:00 PM <br />Caution: This email originated outside our organization; please use caution. <br />Sophia, <br />Below are my comments related to the 8012 Hill Trail impervious surface varianceapplication. Let me know if you have any questions or would like any further review fromengineering. <br />1. Grading should be done in a manner that does not direct stormwater runoff towards thesanitary system or adjacent properties.2. Existing well impacts. The proposed site plan shows the house addition over the existingprivate well. The well must be sealed in accordance with MDH requirements.3. New Well. The site plans show a new well to be constructed. The new well must beconstructed in accordance with MDH requirements and meet all required setbacks.4. Site Plans. The site plans should show the on-site septic systems, wells, and rain gardensand should demonstrate meeting all setback requirements for each of them, includingproperty line setbacks. <br />Thanks ~Jack John (Jack) W. Griffin, P.E.Principal / Sr. Municipal Engineer <br /> 651.300.4264 Jack.Griffin@FOCUSengineeringinc.com <br />