2008 006 Ordinance - Laserfiche WebLink

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E. Design criteria for corrective measures when necessary. F. Opinions and recommendations covering the stability of the site. 1129.09 PERF®R1i~IANCE STANDARDS The SWP3 must contain a description of the controls appropriate for each construction operation and the applicant must implement such controls. The SWP3 must clearly describe for each major construction activity the appropriate control measures; the general sequence during the construction process under which the measures will be implemented; and the contractor responsible for implementation (e.g., contractor A will clear land and install perimeter controls and contractor B will maintain perimeter controls until final stabilization). The controls shall include the following minimum components: (a) NON-STRUCTURAL PRESERVATION MEASURES: The SWP3 must make use of practices that preserve the existing natural condition to the maximum extent practicable. Such practices may include preserving riparian areas, preserving existing vegetation and vegetative buffer strips, phasing of construction operations in order to minimize the amount of disturbed land at any one time, and designation of tree preservation areas or other protective clearing or grubbing practices. (b) EROSION CONTROL PRACTICES: The SWP3 must make use of erosion controls that are capable of providing cover over disturbed soils. A description of control practices designed to restabilize disturbed areas after grading or construction shall be included in the SWP3. The SWP3 must provide specifications for stabilization of all disturbed areas of the site and .provide guidance as to which method of stabilization will be employed for any time of the year. Such practices may include: temporary seeding, permanent seeding, mulching, matting, sod stabilization, vegetative buffer strips, phasing of construction operations, the use of construction entrances, and the use of alternative ground cover. Erosion control practices must meet the following requirements: (1) Stabilization. Disturbed areas must be stabilized as specified in Tables 1 and 2 below. Table 1: Permanent Stabilization Area requiring permanenf stabilization "Time :frame to a ly erasion controls ~' Any area that will lie dormant for one year or more. Within 7 days of the most recent disturbance. Any area within 50 feet of a stream and at final grade. Within 2 days of reaching final grade. Any area at final grade. Within 7 days of reaching final grade within that area. Table 2: Temporary Stabilization Area re uirn ~.tem ora ~ stabilization Time frame to ap ly erosion controls r Any disturbed area within 50 feet of a stream and not at final grade. Within 2 days of the most recent disturbance if that area will remain idle for more than 21 days. For all construction activities, any disturbed area, Within 7 days of the most recent disturbance within