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Staff Report to the Planning Commission Lands of Askminam 27198 Elena Road November 6, 2008 Page 10 of 12 For further details on the above geotechnical requirements, please refer to the letter from Cotton, Shires & Associates, Inc., dated October 30, 2008. 17. Peak discharge at 27174 Elena Road, as a result of Site Development Permit 203-08, shall not exceed the existing pre -development peak discharge value of the property. Detention storage must be incorporated into the project to reduce the predicted peak discharge to the pre - development value. Provide the data and peak discharge hydrologic model(s) utilized, as well as, the calculations of the peak discharge value prior and post development. Determine the design peak runoff rate for a 10 -year return period storm and provide detention storage design plans to reduce the predicted peak discharge to the pre -development value. All documentation, calculations, and detention storage design (2 plan copies) shall be submitted for review and approval to the satisfaction of the City Engineer prior to acceptance of plans for building plan check. Prior to final inspection, a letter shall be submitted from the project engineer stating that the detention storage design improvements were installed as shown on the approved plans and in accordance with their recommendations. 18. Any, and all, changes to the approved grading and drainage plan shall be submitted as revisions from the project engineer and shall first be approved by the Town Engineering Department. No grading shall take place during the grading moratorium (October IS to April IS) except with prior approval from the City Engineer. No grading shall take place within ten feet of any property line except to allow for the construction of the driveway access. 19. All public utility services serving this property shall be placed underground. The applicant should contact PG&E immediately after issuance of building permit to start the application process for undergrounding utilities which can take up to 6-8 months." 20. At the time of foundation inspection for the new residence and prior to final inspection, the location and elevation of the new residence shall be certified in writing by a registered civil engineer or licensed land surveyor as being in/at the approved location and elevation shown on the approved Site Development plan. At the time of framing inspection for the new residence, the height of each building shall be similarly certified as being at the height shown on the approved Site Development plan. 21. Two copies of an erosion and sediment control plan shall be submitted for review and approval by the Engineering Department prior to acceptance of plans for building plan check. The contractor and the property owner