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Cyphers Logistic Park AUAR 34 March 2022 phases of development. Design criteria shall be the 2-, 10-, and 100-year 24-hour storms with respective 2.8, 4.2, and 7.3-inch rainfall depths with VBWD-approved time distribution and the 7.2-inch, 100-year , 10-day snowmelt event. As shown in each s cenario , an extensive network of stormwater ponds and stormwater features are anticipated throughout the study area . The stormwater management design will be subject to the regulations as previously noted, regardless of the s cenario developed, and individual plans will be required to demonstrate compliance with both the City’s and VBWD’s rules for stormwater management. Additionally, the developer will look for methods to minimize chloride use and improve treatment of stormwater runoff to minimize potential impacts to downstream waters. The project will comply with all city, watershed district, county, and state rules for stormwater management, and chloride use will be addressed in the Stormwater Management Plan that will be reviewed by the City for compliance. v. Water Appropriation – Describe if the project proposes to appropriate surface or groundwater (including dewatering). Describe the source, quantity, duration, use, and purpose of the water use and if a DNR water appropriation permit is required. Describe any well abandonment. If connecting to an existing municipal water supply, identify the wells to be used as a water source and any effects on, or required expansion of, municipal water infrastructure. Discuss environmental effects from water appropriation, including an assessment of the water resources available for appropriation. Identify any measures to avoid, minimize, or mitigate environmental effects from the water appropriation. AUAR Guidance: If the area requires new water supply wells, specific information about that appropriation and its potential impacts on groundwater levels should be given; if groundwater levels would be affected, any impacts resulting on other resources should be addressed. Construction dewatering will be required for the development of the area south of 34th Street N and may be required when the area north of 34th Street N develops. Construction activities associated with dewatering will include discharging into temporary sedimentation basins to reduce the rate of water discharged from the site, as well as discharging to temporary stormwater best management practices. Any temporary dewatering will require a DNR Temporary Water Appropriations General Permit 1997-0005 if less than 50 million gallons per year and less than one year in duration. In the area south of 34th Street N it is anticipated that the temporary dewatering would only occur during utility installation and potential construction of building footings. The water supply will be obtained from the three municipal groundwater wells that cur rently supply the Lake Elmo water system. The groundwater wells draw water from the Jordan aquifer.4 According to the City’s Comprehensive Plan, the City’s pumping capacity is 3,750 gallons per minute (gpm) as of 2019 for the three wells . 4 Source: City of Lake Elmo. 2040 Comprehensive Plan: Water Supply Plan in Appendix H (2019). https://cms8.revize.com/revize/lakeelmomn/Full2040CompPlan.pdf