06/09/2010 P&Z Packet - Laserfiche WebLink

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• • Attachment 1: Site Layout Performance Standards Page 5 markers flush to the ground, breakaway markers of durable material, or a vegetation maintenance plan approved by City staff in writing. c) The application must include a natural resource management plan for City approval that includes the following: site inventory, management goals, management activities, maintenance activities, monitoring activities, funding mechanisms, and any other information requested by City staff. d) The buffer or upland habitat area will consist of vegetated land, primarily plant species native to this region that is not otherwise disturbed, except for periodic cutting or burning that promotes the health of the buffer or upland habitat area, actions to address disease or invasive species, or other actions to maintain or improve buffer or habitat area quality, each as approved in writing by City staff. The following are prohibited: land that is cultivated; cropped; pastured; mowed; fertilized; used as a site for depositing snow removed from roads, driveways or parking Tots; or subject to the placement of mulch or yard waste. For public road authorities and stormwater system maintenance, the terms of this subsection will be modified as necessary to accommodate safety and maintenance feasibility needs. e) Wetland buffer and upland habitat area may be disturbed to alter land contours or improve buffer and upland habitat function if the following criteria are met: i. An erosion control plan is submitted under which: • alterations are designed and conducted to expose the smallest amount of disturbed ground for the shortest time possible; • fill or excavated material is not placed to create an unstable slope; • mulches or similar materials are used for temporary soil coverage; and • permanent native vegetation is established as soon as possible. ii. Wooded buffer and native riparian canopy trees are left intact. iii. When disturbance is completed: • sheet flow characteristics within the buffer are improved; • average slope is no steeper than preexisting average slope or 5:1 (horizontal:vertical), whichever is less steep; however, preexisting slopes steeper than 5:1 containing dense native vegetation will not require regrading; • the top 18 inches of the soil profile is not compacted, has a permeability at least equal to the permeability of the preexisting soil in an uncompacted state and has organic matter content of between five and 15 percent; and • habitat diversity and riparian shading are maintained or improved. iv. A re-vegetation plan is submitted specifying removal of invasive species and establishment of native vegetation suited to the location. v. A recorded declaration or, for a public entity, maintenance agreement is submitted that states that for three years after the site is stabilized, the