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a wetland and explained what the DNR uses to determine an elevation for a wetland, noting that it <br /> is not as clear cut as determining the level for groundwater. <br /> Mr. Peterson asked if that would be discussed with the DNR. <br /> Civil Engineer IV Linton confirmed that he would be discussing that with the DNR. He <br /> commented that the water level is lower than the established water level,but higher than the bottom <br /> of the pipe which is why they are putting an outlet structure in higher than that pipe. He <br /> commented that there has been decreased precipitation in the last two years and in the last ten years <br /> there are more years below average rainfall than above. He explained that if you consistently run <br /> below average, the average is lowered. He stated that he recently did some work with residents <br /> on Lake Itasca and over the past 30 years, the average rainfall amounts are lower, even though <br /> there are storm events with higher levels of rain. <br /> Councilmember Woestehoff commented that the difference between the water line in 2005 and <br /> 2020 is clear. He stated that level has naturally been receding since that time and therefore part of <br /> this would be that there is just not enough water coming in. <br /> Civil Engineer IV Linton commented that the height of the pipe is below the water level the DNR <br /> would like to see and therefore this case would propose to raise the level to where the water level <br /> should be. <br /> Chairperson Riley commented that the City would then take that action and the rest would be up <br /> to the level of precipitation that is received. <br /> A resident asked if there is blockage coming into the pond, noting that some ditches in the area <br /> hold water at a constant level. <br /> Civil Engineer IV Linton replied that ditch mentioned does not flow to the wetland. He stated that <br /> the soils in that area could have more clay and this area could have more gravel/sand. <br /> Chairperson Riley stated that this would propose to fix the outlet and associated manholes. He <br /> stated that the boardwalk would be a different topic for a different day. <br /> Civil Engineer IV Linton reviewed the next steps and provided details on when the project would <br /> be completed. <br /> City Engineer/Interim Public Works Director Westby replied that once staff speaks with the DNR <br /> they would complete the plans and bring those back to the Committee and Council for review. <br /> 6. COMMITTEE / STAFF INPUT <br /> 6.01: Staff Updates on Improvement Projects, Studies, and Items of Interest <br /> Public Works Committee/ October 18, 2022 <br /> Page 5 of 7 <br />