AgdaPkt 2015-09-21 Joint Special SAF PAF

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constructed along the side and rear lot lines of Lots 1-4. This results in a 100% reduction in impervious surfaces within the creek protection setback, and an increase of 48 linear feet of lot line fencing. The project as described in the certified EIR included encroachments within the 25’ creek protection setback area (although utilizing a different top of bank location). The EIR analyzed potential environmental impacts associated with the development and provided mitigation measures to minimize potential impacts, to provide enhanced landscaping along the creek where existing impervious coverage will be removed, and to promote a more natural character to the creek. Therefore, the development will not disturb riparian vegetation, but enhance and add to the vegetation along and near the creek top of bank. 2. The development will maintain the stability of the slopes of the creek bank. The proposed project includes no work or disturbance of earth within the slopes of the bank. The existing retaining walls located at or near the top of bank would remain in place. Further, the proposed project would remove existing structures and other impervious coverage that are in close proximity to the top of bank and place new structures and improvements further away from the creek. The certified EIR concludes that the grading and drainage proposed as part of the project will have a minimal impact on the stability of the creek bank. Further, the installation of fencing along the top of bank was considered within the certified EIR and found to not create an impact on the stability of the creek bank, therefore, the proposed development will maintain the stability of the slopes of the creek bank. 3. The development will be designed to avoid discharge of pollutants directly to the watercourse and will assure that the discharge of runoff will be filtered over a minimum of twenty-five (25) feet of vegetation or through other equivalent means to the satisfaction of the Engineering and Construction Division. With the removal of 5,573 square feet of structures and impervious coverage within the 25’ creek protection setback area, and the placement of new structures and impervious coverage further away from the top of bank, a net reduction of runoff into Cordilleras Creek will occur. A minimum of 25 feet of vegetated, pervious ground cover is provided on all lots along the creek. Further, the drainage plan calls for all rooftop runoff as well as all drainage from the rear wall- line of the proposed houses on Lots 1-4 to be treated on-site before being 8.B. - Page 7