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3. Elevations, sections, profiles, and details as needed to describe all natural and artificial features of the project. 4. Proposed grade contours at one -foot intervals shown as solid lines. 5. An estimate of the total volume (cubic yards) of materials proposed to be imported to or exported from the site. 6. Provisions for groundwater management (dewatering), including subsurface drains, disposals, ponding and flood controls. 7. Spot elevations at drainage break points and directional arrows indicating site swale and lot drainage. 8. Proposed lot lines, lot and block numbers, building style, building pad location and elevations at the lowest floor and garage slab, if applicable, for each lot. 9. Locations, sizes, grades, rim and invert elevations of all proposed stormwater facilities, including ponds, proposed to serve the subject property. 10. The location of all oversize, non -typical easements including conservation easements, if applicable. 11. Show the boundary of the 100 year flood elevations of all waterbodies. 12. Locations of all stormwater management practices, infiltration areas, and areas not to be disturbed during construction. 13. Normal water level, high water level, and emergency overflow elevations for the site and all associated ponding systems. 14. Location of areas where construction will be phased to minimize duration of exposed soil areas. Include map and calculations as necessary of areas of grubbing, clearing, tree removal, grading, excavation, fill, and other disturbance; areas of soil or earth material storage; quantities of soil or earth material to be removed, placed, stored, or otherwise moved on site, and delineated limits of disturbance. 15. Location and type of all temporary and permanent erosion prevention, sediment control, stormwater runoff, and soil stabilization BMPs, along with procedures to be used to establish additional temporary BMPs as necessary for the site conditions during construction. Standard plates and/or specifications for the BMP's used on the project must be included in the final plans and specifications for the project. Location and design of temporary sediment basins where ten acres or more (five acres or more for special or impaired waters) are disturbed and drained to a single point. When site restrictions do not allow for a temporary sediment basin or less than the required acreage is being developed, temporary sediment basins where appropriate DRAFT ORD 09-15 CHAPTER 1011STORMWATER & ESC ORDINANCE.DOCX 13/29