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PAGE 3 of 4 5. All storm water basins must be placed in easements in accordance with the Stormwater Maintenance and Easement Agreement. The easements must fully incorporate the 100‐year high water level areas, 10‐foot maintenance bench, maintenance access roadways to a public right‐of‐way, and over all emergency overflow locations and pathways. 6. The SWMP will be required to verify that rate control and volume control requirements are met for all points of discharge from the site. The existing and proposed drainage exhibits must clearly show and label all points of discharge from the site, including any required public improvements and turn lanes. The SWMP rate control tables must reference each discharge location independently and combined. 7. Overland emergency overflows or outlets will be required as part of the site and grading plans. 8. All infiltration basins shall be sized using design infiltration rates based on actual soil borings obtained from within the basin footprint at the proposed basin bottom elevation. Soil borings must be taken for each infiltration basin in the number and to the depths required by the VBWD and City design standards. Soil boring information submitted to date remains insufficient. 9. All wetlands and wetland buffers must be delineated and protected by easement. 10. Minimum floor elevations must be at least 2 feet higher than the adjacent 100‐year HWL elevation. Also, all low opening elevations for all buildings must be at least 1‐ft higher than any adjacent emergency overflow elevation (EOF). All building low floor and low opening elevations must be clearly labeled on the grading plans. 11. All localized low points (catch basins) and low areas (land locked basins) must be protected within a drainage easement up to the 100‐year high‐water level. The grading plans must be revised to label and clarify the purpose of all low areas. 12. The grading plans must label all steep slope areas with notations indicating the maximum allowable grading slopes. 13. The grading plans must label all basin maintenance access roadways, label the maximum slope as 10%, and label the maintenance roadway width as 20‐feet. MUNICIPAL WATER SUPPLY 1. Connection to the municipal water system is available to the existing trunk watermain running along Lake Elmo Avenue (CSAH 17). The applicant will be responsible for connecting to the existing 16‐inch trunk watermain along Lake Elmo Avenue (CSAH 17) in two locations to create a looped watermain network around the new school. A minimum 8‐inch ductile iron watermain shall be extended internal to the site and throughout the property as necessary to provide connection to all proposed uses. 2. The project will require the placement of fire hydrants and water system valves internal to the site as determined by the Lake Elmo Public Works Director and Fire Department. The site plans show the watermain extension, hydrant locations and system valves generally consistent with City requirements. Revisions may be necessary as the Construction Plans are finalized. 3. Minimum 30‐foot easements centered over the pipe/hydrant have been shown on the plans as required. 4. No watermain oversizing is anticipated as part of this Project. SANITARY SEWER SYSTEM 1. A Comprehensive Plan Amendment has been approved to expand the Municipal Urban Service Area (MUSA) for the property. Therefore, the extension of public sanitary sewer service will be required to serve the new elementary school. 2. The applicant will be required to construct a privately owned and maintained sanitary lift station on the district property and extend a private forcemain to a designated connection point to be located on the northeast corner of Lake Elmo Avenue (CSAH 17) and 10th Street (CSAH 10). The private forcemain will be combined with a new public forcemain to be installed by the City and extended south along Lake Elmo Avenue (CSAH 17) to an existing trunk sanitary sewer at 5th Street. 3. The new school sewer service would discharge by gravity to the new lift station. 4. Plan revisions are required for the private lift station facility to ensure that the facility is fully located on district property and that the maintenance access is internal to the school property, fully outside all required right‐of‐way dedication.