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elevations. The lowest entry level of affected houses shall be 2' above the HWL of adjacent ponds. 9. If retaining walls are needed, submit detailed plans and specifications that show type and height of retaining wall. Retaining walls will not be allowed within the City's ponding easements or street right-of-way. 10. Show City of Roseville project number on the plan or title page. 11. Show emergency overflow routes from all low points and show elevation of high point along emergency overflow route. The lowest entry level or opening of affected houses shall be 1' above the emergency overflow elevation. 12. Show removal of all trees and brush below the normal water level that will be impacted from existing and newly created ponding areas. 13. Show or define access routes for maintenance purposes to all inlets or outlets at ponding areas (must be maximum of 8% grade, 2% cross slope and 10' wide). 14. Show all existing and proposed grades. Required standard is 2' contours with existing contours shown as dashed or screened and proposed contours shown as solid. Standard scale is 1" = 50' or less depending on the amount of detail required. 15. Upon completion of grading, the developer is required to provide the City with a mylar "as -built" grading plan certifying the actual grades of the site including house pad and lowest exposed structure elevations of existing and proposed. 16. Provide existing and proposed hydrologic/hydraulic calculations for 10- and 100 - year, 24-hour storm events. 17. Provide pre- and post -detailed hydrologic/hydraulic calculations for stormwater ponds and wetlands verifying location and capacity adequacy of all overland drainage routes. Consult the City's Surface Water Management Plan for further detail on design criteria 18. Show the location of silt fence and all other erosion control devices. Note for all silt fence to be installed by the contractor and inspected by the City prior to any site work. Construction areas adjacent to existing water bodies such as wetlands, creeks, ponds, or lakes shall have Type III erosion control (see details). 19. All drainage plans shall be consistent with the City of Roseville's Comprehensive Surface Water Management Plan (CSWMP). B. SANITARY SEWER All sanitary sewer and appurtenances shall be checked for conformance with the design criteria specified in the Recommended Standards for Waste Water Facilities — 1990