#19 - At Home Apartments Final Plat and PUD

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& PLANNED UNIT DEVELOPMENT (PUD) FINAL PLAN APPLICATION 4. Rate and volume control requirements must be met for all points of discharge from the site. The storm water management plan must be revised discharge to 39th Street storm Applicant Response 5. The SWMP must be revised to provide a summary table of the 100 for each BMP, and for each catch basin low point. The grading plans must be revised to show the 100‐year HWL elevation at HWL contour. A note must be shown with the table point 100‐year HWL was determined using the limiting inlet capacity and capacity. Applicant Response determined using the limiting inlet capacity. 6. The proposed BMP infiltration must be dedicated to city ownership for stormwater management. Outlot ownership must be shown on the Preliminary Plat plan must be revised to in Applicant Response 7. Overland emergency overflow (EOF) elevations are required throughout the site, requiring a system of structures must maintain 1 Applicant Response: 8. Approval of the preliminary grading plans for the development is contingent upon all grading plans being reviewed and approved by the City Engineer prior to the start grading or construction. (a) as‐built grade. Design grades must exceed grading plans must be revised accordingly. the proposed approved grading plan for the Lil Explorers project designs are compatible. 100‐year HWL elevation/contour for all localized protected by drainage and utility easement dedicated on the Plat. control plans to show double silt fence around all BMPs and all stock Landscaping improvements must be closely coordinated with the preparation of the construction plans to ensure that tree plantings do not encroach drainage swales, EOF flow paths, utility easements, and Applicant Response: Satisfied. Please see Sheets 16 & 17. FINAL PLAT APPLICATION & PLANNED UNIT DEVELOPMENT (PUD) FINAL PLAN APPLICATION Rate and volume control requirements must be met for all points of discharge from the water management plan must be revised as the plan currently shows the discharge to 39th Street storm sewer being exceeded in the post development condition. Applicant Response: Satisfied. Please see SWMP Report. The SWMP must be revised to provide a summary table of the 100 ‐year HWL elevatio for each catch basin low point. The grading plans must be revised to ‐year HWL elevation at each catch basin low point including the 100 HWL contour. A note must be shown with the table indicating that the catch basin ‐year HWL was determined using the limiting inlet capacity and Applicant Response: Satisfied. Please see Sheets 5/6 and 16/17. determined using the limiting inlet capacity. The proposed BMP infiltration basin has been placed in Outlot A as required. Outlot A to city ownership for stormwater management. Outlot ownership must be shown on the Preliminary Plat and on the Grading, Utility and Site Plans. The grading plan must be revised to indicate that the storm water basin is an infiltration basin. Applicant Response: Satisfied. Please see Sheets 5/6 and 16/17 Overland emergency overflow (EOF) elevations are required throughout the site, interconnecting drainage ways. Low openings for adjacent structures must maintain 1‐foot above any adjacent EOF in the as‐built condition. Response: Satisfied. Please see Sheets 16 & 17. Approval of the preliminary grading plans for the development is contingent upon all reviewed and approved by the City Engineer prior to the start grading or construction. (a) All drainage swales must be designed to meet a minimum 2% ‐built grade. Design grades must exceed 2% to account for construction toleran grading plans must be revised accordingly. (b) The grading plans must be revised to show the proposed approved grading plan for the Lil Explorers daycare to ensure the two project designs are compatible. (c) Preliminary plat approval must be conti ‐year HWL elevation/contour for all localized low points and catch basins being protected by drainage and utility easement dedicated on the Plat. (d) Revise the erosion control plans to show double silt fence around all BMPs and all stock Landscaping improvements must be closely coordinated with the preparation of the to ensure that tree plantings do not encroach drainage swales, EOF flow paths, utility easements, and pond access routes. Response: Satisfied. Please see Sheets 16 & 17. & PLANNED UNIT DEVELOPMENT (PUD) FINAL PLAN APPLICATION Rate and volume control requirements must be met for all points of discharge from the as the plan currently shows the sewer being exceeded in the post development condition. ‐year HWL elevation for each catch basin low point. The grading plans must be revised to each catch basin low point including the 100‐year indicating that the catch basin low ‐year HWL was determined using the limiting inlet capacity and not the pipe and 16/17. HWL’s were basin has been placed in Outlot A as required. Outlot A to city ownership for stormwater management. Outlot ownership must and on the Grading, Utility and Site Plans. The grading basin is an infiltration basin. Overland emergency overflow (EOF) elevations are required throughout the site, . Low openings for adjacent ‐built condition. Approval of the preliminary grading plans for the development is contingent upon all reviewed and approved by the City Engineer prior to the start of any All drainage swales must be designed to meet a minimum 2% 2% to account for construction tolerances. The The grading plans must be revised to show daycare to ensure the two Preliminary plat approval must be contingent upon the low points and catch basins being Revise the erosion control plans to show double silt fence around all BMPs and all stock pile sites. (e) Landscaping improvements must be closely coordinated with the preparation of the to ensure that tree plantings do not encroach drainage swales, EOF