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Ms. Katie Larsen <br />12/03/2025 <br />Page 7 <br />Based on the Estimated Daily Water Demand, which are reasonably conservative, the <br />Peltier Ponds Development will increase the system’s average day demand by about <br />71,775 gallons per day (gpd). <br /> <br />As shown on the Utility Plans, the existing 12” DIP trunk main on Watermark Way will be <br />extended west through the development to its northern boundary similar to what is shown in <br />the City’s 2040 Comprehensive Plan. A 12” stub will be extended to the north towards <br />Rehbein’s Peltier View. There will need to be a connection to the 12” watermain stub on <br />th <br />the west side of 20 Avenue at Rehbein Street and Rainy Lane. Otherwise, the <br />development will include a water system with predominately 8- inch diameter PVC C900 <br />water main with 1-inch Type K copper services being extended to each lot. Water supply <br />will need to be evaluated in conjunction with current pending DNR water appropriation <br />approvals. Additional water stubs will be extended to the south. <br /> <br />The south portion of the development is in the City’s Drinking Water Supply Management <br />Area (DWSMA) and would be subject to those requirements. Residential land use is <br />consistent with the DWSMA vulnerability. <br /> <br />Comments: <br />1. Avoid utility crossings where possible <br />a. Keep watermain on west side along Gordon Ave/Street B <br />Hill (11/10/2025) Revised as recommended. <br />WSB (12/3/2025) Complete <br /> <br />2. Provide utility profiles with final plat <br />a. All utilities outside the right of way require an easement that meets a 1:1 <br />slope with the utility invert (minimum 20') <br /> Revised as recommended. <br />Hill (11/10/2025) <br />WSB (12/3/2025) Additional areas are in conflict - to be further reviewed with <br />profile submittals <br /> <br />b. Show all utility crossings in profiles <br />Hill(11/10/2025)Profiles will be provided with the final plans. <br />WSB (12/3/2025) Complete – to be further reviewed with profile submittals <br />i. Maintain minimum 18" separation <br />ii. Insulate when separation between storm sewer and water is less <br />than 36" <br /> <br />c. Identify conflicts between water, sanitary, and storm sewer mains and <br />services <br />WSB (12/3/2025) Complete – to be further reviewed with profile submittals <br /> <br />3. Locate hydrants and alter watermain such that hydrants are located at all water <br />system highpoints <br />Hill (11/10/2025) High point hydrant locations will be provided/confirmed with final <br />plan/profiles. <br />WSB (12/3/2025) Complete – to be further reviewed with profile submittals <br />a. Maintain minimum watermain cover <br />b. Maintain hydrant coverage <br /> <br />Peltier Ponds Development - Engineering Review <br /> <br />