06-02-25 - Council Work Session Agenda

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Ms. Katie Larsen 05/07/2025 Page 2 Stormwater reuse will be required for all development irrigation • Water Supply The City's water supply system well firm capacity is currently constrained by poor water quality in some wells, and annual variability in water use due to drought and other factors. Based on the water supply capacity and well trigger analysis completed in April 2024, the city may need additional well(s) to accommodate development within the City's existing 2040 Utility Staging Area. While the City's Comprehensive Plan identifies the need for additional wells to support continued growth, the White Bear Lake District Court orders and ongoing litigation, currently prevents the City from implementing that plan. The City is currently working through the well approval process with the Minnesota Department of Natural Resources (MNDNR). This action does not contemplate capacity for areas outside the current Utility Staging area. Without additional well capacity proposed developments may be deemed premature. The developments will be evaluated on a case by case basis to determine actual demand and availability of capacity to serve the development. Any proposed development will need to demonstrate methods reduce water use including but not limited to stormwater reuse for irrigation. Applicant to verify water pressure is adequate for all locations within the development. All proposed units are required to be on the municipal water supply. Water infrastructure for the Nelson-Rehbein development has not yet been designed and will need to be submitted for preliminary plat by the applicant. There is an existing 16-inch diameter trunk watermain along 20th Avenue (CSAH 54) that will be looped through the site to an existing 8" diameter watermain within Heritage Avenue. Otherwise, the development will include a water system with predominately 8- inch diameter ductile iron pipe (DIP) water main with 1-inch Type K copper services being extended to each lot. Water supply will need to be evaluated in conjunction with current pending DNR water appropriation approvals. Additional water stubs may need to be extended to the north or west for future development. The development is in the City's Drinking Water Study Management Area and has moderate vulnerability and would be subject to those requirements. • Sanitary Sewer Sanitary sewer collection for the Nelson-Rehbein development has not yet been proposed and will need to be submitted for preliminary plat by the applicant. It is anticipated that the existing 8-inch polyvinyl chloride (PVC) sanitary sewer within Heritage Avenue will be extended north to serve the site. The site will be served along with 4-inch Schedule 40 PVC service pipe to each lot. Additional sanitary sewer stubs will be extended to the south. Nelson-Rehbein Parcels Concept Plan Submittal - Engineering Review