Laserfiche WebLink
5.5.3 BUFFER RESTORATION AREA B2 PLANTINGS (8,910 SQUARE FEET) <br /> Common Name Latin Name Size Spacin Quantity <br /> Douglas fir Pseudotsuga menziesii 1 gallon 10' 15 <br /> Shore pine Pinus contorta 1 gallon 10' 15 <br /> Western red cedar Thuja plicata 1 gallon 10 15 <br /> Big-leaf maple Acer macrophyllum 1 gallon 10' 15 <br /> Nootka rose Rosa nutkana 1 gallon 5' 33 <br /> Osoberry Oemleria cerasiformis 1 gallon 5' 33 <br /> Snowberry Symphoricarpos albus 1 gallon 5' 33 <br /> Thimbleberry Rubus parvforus 1 gallon 5' 33 <br /> Salmonberry Rubus spectabilis 1 gallon 5' 33 <br /> Salal Gaultheria Shallon 1 gallon 5' 33 <br /> Sword fern Polystichum munitum 1 gallon 5' 33 <br /> 5.5.4 BUFFER RESTORATION AREA C (3 20 SF) <br /> Approximately 320 square feet of buffer impacts have occurred in an area previously dominated <br /> by grasses within the southern portion of the property. This area shall be grass seeded to the <br /> specifications detailed below in section 5.5.5. <br /> 5.5.5 Grass Seeding <br /> Any disturbed soil in buffers shall be seeded to the recommended grass seed mixture below, or <br /> similar approved mixture. The City shall approve any change in species or concentration. Fertilizer <br /> shall only be used if absolutely necessary due to potential runoff into adjacent waters. If deemed <br /> absolutely necessary by the consulting biologist and/or the City, an appropriate fertilizer will be <br /> recommended for the particular situation. <br /> Buffer Mix <br /> COMMON NAME LATIN NAME LBS/1,000 S.F. <br /> Tall fescue Festuca arundinacea 0.4 <br /> Colonial bentgrass Agrostis tenuis 0.4 <br /> Annual ryegrass Lolium multforum 0.5 <br /> Red clover Trifolium repens 0.2 <br /> This mitigation plan is consistent with the revised version of the Washington State Department of <br /> Ecology's (WSDOE) Guidelines for Developing Freshwater Wetlands Mitigation Plans and Proposals, titled <br /> Wetland Mitigation in Washington State—Part 2:Developing Mitigation Plans. The proposed restoration <br /> plan is expected to provide increased biological functions over existing conditions. <br /> 5.6 INVASIVE PLANT AND DEBRIS REMOVAL <br /> Before planting occurs, invasive species within the on-site wetland and buffer area, including but <br /> not limited to Himalayan blackberry (Rubus armeniacus) and English holly (Ilex aquifolium), shall be <br /> removed. Since these invasive species are intermixed with natives,hand-removal is recommended. <br /> 2127100th Street SE 13 WRI#23188 <br /> Critical Area Study and Mitigation Plan October 9, 2023 <br />