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Ms. Ahlborg asked Ms. Anderson Wenz to talk about Kohlman Lake as it was <br />similar to the Como Lake situation that was brought up earlier by one resident. <br />Ms. Anderson Wenz stated that Kohlman Lake was listed as impaired prior to Lake <br />Bennett and stated that the external load has been managed for the past ten years <br />and that it is close to being complete. She explained that the management, even <br />though good for the waterbody, sometimes still does not satisfy the displeased <br />homeowners. <br />Chair Cihacek questioned how many homeowners present had rain gardens on their <br />property and asked how many people are picking up their pet and yard waste <br />consistently. <br />Many residents replied yes, they do these things. <br />Ms. Anderson Wenz stated that the watershed offers afeature on the website where <br />residents can see what district they are in and encouraged residents to use that to <br />gain a better understanding of where the runoff water is coming from. <br />Environmental Specialist Johnson stated that aerators can be ran and this might be <br />a good option for Frog Pond. He stated that he was skeptical of the use of any <br />chemicals to treat the water. <br />Chair Cihacek questioned if there were other odor control options for Frog Pond. <br />Mr. Johnson replied there were none that he was aware of. <br />Chair Cihacek asked Mr. Johnson to look into that and report back to the <br />commission. <br />Member Misra stated the presentation indicated that impervious services are the <br />largest contributor and asked that Ms. Anderson Wenz further explain this aspect. <br />Ms. Anderson Wenz stated that all the impervious surfaces greatly increase the <br />mobility of water and help it move around rather than filtrate into the ground where <br />it gets cleaned. <br />Member Misra questioned how the impervious surface is being addressed through <br />the various agencies. <br />Mr. Johnson stated the programs and permitting aim to reduce the amount of <br />impervious surface or at least incorporate mitigation efforts to address the runoff <br />created by added impervious surface. <br />Member Misra asked if design was considered and questioned whether trails and <br />sidewalks could be designed to use less impervious materials. <br />