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Exhibit B <br />ORDINANCE Exhibit A - Page 35 of 66 <br />2. A baseline study that describes and quantifies the existing wetland and buffer functions, <br />functions that will be lost, and the functions after mitigation. Include acreage or square footage of <br />the existing wetland and buffer areas to be altered, landscape position, and surrounding land uses. <br />Include a description of existing versus proposed water regimes, vegetation, soils, and functions. <br />Also describe impacts in terms of acreage by Cowardin classification, hydrogeomorphic <br />classification, and wetland rating. This assessment could involve assessing functions using <br />Calculating Credits and Debits for Compensatory Mitigation in Wetlands of Western Washington: <br />Final Report, March 2012, Washington State Department of Ecology Publication No. 10-06-011, or as <br />amended; <br />3. A description of the compensatory mitigation site, including location and rationale for selection. <br />Include an assessment of existing conditions, including acreage or square footage of wetlands and <br />uplands, water regime, sources of water, vegetation, soils, functions, landscape position, and <br />surrounding land uses. Estimate future conditions in this location if the compensatory mitigation <br />actions are not undertaken. <br />4. Describe the future vegetation community types for monitoring years, including dominant <br />vegetation expected. Plants shall be native species, commercially available or available from local <br />sources, high in food and cover value for fish and wildlife, and mostly perennial; <br />5. Specify when mitigation will occur relative to project construction and to the requirements of <br />permits issued by other agencies. Specify proposed mitigation actions, if applicable, and include <br />written specifications and descriptions of the mitigation proposed, such as: <br />a. The proposed construction sequence, timing, and duration; <br />b. Grading and excavation details; <br />c. Erosion and sediment control features; <br />d. A planting plan specifying plant species, quantities, locations, size, spacing, and density; and <br />e. Measures to protect and maintain plants until established. <br />These written specifications shall be accompanied by detailed site diagrams, scaled cross sectional <br />drawings, topographic maps showing slope percentage and final grade elevations, and any other <br />drawings appropriate to show construction techniques or anticipated final outcome.; 6. Include <br />measurable criteria for evaluating whether the performance goals of the mitigation proposal have <br />been met, and include provisions for maintenance and monitoring the mitigated area on a long-term <br />basis to determine whether the plan was successful; <br />7. Include a contingency plan specifying what corrective actions will be taken to achieve <br />performance goals should the mitigation not be successful; <br />8. Include provisions for an assurance device as provided by Chapter 19.40 to ensure that work is <br />completed in accordance with the mitigation plan, that maintenance and monitoring occur on a <br />regular basis, and that restoration or rehabilitation is performed in accordance with the contingency <br />plan if mitigation failure results within five years of implementation. The construction performance <br />guarantees shall not be released until the applicant’s qualified professional and the planning <br />director sign off to indicate that construction has been completed as planned. A separate <br />performance assurance device shall be required for maintenance, monitoring, and contingency. This