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Katie Larsen <br />Page 2 <br />September 13, 2022 <br />• The EAW should consider climate risks associated with increased rainfall regarding the proposed <br />development that could result in the potential for increased flood risk. Filling of wetlands at the site <br />and adding large areas of impervious surfaces is likely to alter the natural hydrology and increase <br />this risk. Efforts to reduce stormwater volume and provide more climate resiliency should be <br />considered. The Project proposer is strongly encouraged to utilize Low Impact Development <br />strategies such as reducing impervious surfaces through use of narrower streets and sidewalks, <br />stormwater reuse and green infrastructure practices to promote retention of stormwater on the site <br />while also providing other environmental benefits. <br />• During construction, the MPCA National Pollutant Discharge Elimination System/State Disposal <br />System (NPDES/SDS) Construction Stormwater Permit (CSW Permit) requires preservation of the <br />existing 50 feet of natural buffer to wetlands on the site. If the existing buffer must be encroached <br />to complete the construction, then redundant (double) down gradient sediment controls must be <br />utilized to protect the wetlands. Questions regarding Construction Stormwater Permit requirements <br />should be directed to Roberta Getman at 507-206-2629 or Roberta.Getman@state.mn.us. <br />Contamination/Hazardous Materials/Wastes (Item 12) <br />Please be aware that farmsteads have the potential for releases or threatened releases of agricultural <br />chemicals. The Minnesota Department of Agriculture (MDA) is the regulatory agency charged with <br />managing the response and cleanup of fertilizers and pesticides. Information regarding the MDA is <br />available on the website at: https://www.mda.state.mn.us/pesticide-fertilizer/spills-cleanup. For <br />questions regarding agricultural chemicals, please contact Cathy Villas-Horns with the MDA at <br />651-201-6697. For questions regarding waste pesticide containers, please contact Jane Boerboom with <br />the MDA at 651-201-6540. <br />Other Potential Environmental Effects (Item 20) <br />Please note that chloride (salt) is a growing issue for lakes, streams, and groundwater around the state. <br />Chloride can come from both de-icing salt and water softener salt. For the proposed Project, the MPCA <br />recommends smart salting practices for de-icing streets and driveways during the winter weather <br />months and water softening best practices be used year-round. Additional resources are available at: <br />https://www.pca.state.mn.us/business-with-us/statewide-chloride-resources.