19.70.240 Critical area report additional requirements.
A. Additional Report Contents for Wetlands. In addition to the minimum report contents required per AMC 19.70.115, Critical area reports, wetland reports must also include:
1. For each wetland identified on site and off site within 300 feet of the project site provide: the wetland rating, including a description of and score for each function, per wetland ratings (AMC 19.70.215); required buffers (AMC 19.70.235); hydrogeomorphic classification; wetland acreage based on a professional survey from the field delineation (acreages for on-site portion and entire wetland area including off-site portions); Cowardin classification of vegetation communities; habitat elements; soil conditions based on site assessment and/or soil survey information; and to the extent possible, hydrologic information such as location and condition of inlets/outlets (if they can be legally accessed), estimated water depths within the wetland, and estimated hydroperiod patterns based on visual cues (e.g., algal mats, drift lines, flood debris, etc.). Provide acreage estimates, classifications, and ratings based on entire wetland complexes, not only the portion present on the proposed project site;
2. A discussion of the potential impacts to the wetland(s) associated with anticipated hydroperiod alterations from the project;
3. A description of the proposed actions, including an estimation of acreages of impacts to wetlands and buffers based on the field delineation and survey and an analysis of site development alternatives, including a no-development alternative;
4. An assessment of the probable cumulative impacts to the wetlands and buffers resulting from the proposed development;
5. A description of reasonable efforts made to apply mitigation sequencing pursuant to AMC 19.70.125, Mitigation requirements, to avoid, minimize, and mitigate impacts to critical areas and a discussion of measures, including avoidance, minimization, and compensation, proposed to preserve existing wetlands and restore any wetlands that were degraded prior to the current proposed land-use activity;
6. A conservation strategy for habitat and native vegetation that addresses methods to protect and enhance on-site habitat and wetland functions; and
7. An evaluation of the functions of the wetland and adjacent buffer. Include reference for the method used and data sheets.
B. Additional Information. When appropriate due to the proposed impacts or the project area conditions, the Director may also require the critical area report to include:
1. A request for consultation with the Washington Department of Fish and Wildlife (WDFW), Washington State Department of Ecology (Ecology), local Native American tribes, and/or other appropriate agency;
2. Copies of the Joint Aquatic Resource Permit Application (JARPA) and related approvals, such as a Hydraulic Project Approval (HPA) from the Washington Department of Fish and Wildlife (WDFW), when applicable to the project; and
3. Detailed surface and subsurface hydrologic features both on and adjacent to the site. (Ord. 4025 § 2 (Att. A), 2022; Ord. 3064 § 2 (Att. A), 2021)