6307 36TH AVE W 2021-12-16 - Laserfiche WebLink

Hydrology. Soils sampled in the wetland were moist with dark chromas, inferring the presence of water at or near the surface for at least 12.5 percent of the growing season. This satisfies wetland hydrology criteria. Conclusion: The area that is mapped as wetland meets all three parameters for classification as wetland according to the Washington State Wetlands Identification and Delineation Manual, 1997 edition. Vegetated Wetland B, C, and D Buffers (Upland) Vegetation: Red alder (Alnus rubra, Fac) and Western red cedar (Thuja plicata, Fac) dominate the overstory of the buffer. The understory is dominated by a thick stand of salmonberry (Rubus spectabilis, Fac+), Himalayan blackberry (Rubus armeniacus, FacU), Indian plum (Oemleria cerasiformis, FacU), red elderberry (Sambucus racemosa, FacU), false lily -of -the -valley (Maianthemum dilatatum, Fac), and Pacific bleeding heart (Dicentra formosa, FacU+). The dominance of upland rated species does not meet the criteria for hydrophytic vegetation. Soils: The soils within the buffer area were dry at the time of inspection. Sampled soils were dark gray (10YR 3/2) from 0 to 4 inches below the surface and dark yellowish brown (10YR 4/4) from 4 to 18 inches below the surface. The sampled soils had a gravelly sandy loam texture. The buffer area, as mapped, does not appear to satisfy the criteria for hydric soils. Hydrology. Soils sampled in the buffer were dry with light chromas, inferring the lack of water at or near the surface for at least 12.5 percent of the growing season. This does not satisfy wetland hydrology criteria. Conclusion: The area that is mapped as wetland buffer does not meet all three parameters for classification as wetland according to the Washington State Wetlands Identification and Delineation Manual, 1997 edition. Wetland E Vegetation: Red alder (Alnus rubra, Fac) and Western red cedar (Thuja plicata, Fac) dominate the overstory of the wetland. The understory is dominated by a thick stand of salmonberry (Rubus spectabilis, Fac+) and skunk cabbage (Lysichiton americanum, Obl). The dominance of species rated "Facultative" and wetter meets the criteria for hydrophytic vegetation. Soils: The soils within the wetland were ponded at the surface at the time of inspection. Sampled soils were black (10YR 2/1) from 0 to 18 inches below the surface, and muck in texture. The wetland area, as mapped, appears to satisfy the criteria for hydric soils. Hydrology. Soils sampled in the wetland were moist with dark chromas, inferring the presence of water at or near the surface for at least 12.5 percent of the growing season. This satisfies wetland hydrology criteria. Critical Area Study and Buffer Mitigation Plan 8 WRI# 09084 Intermec- Lot 2 Revision#2: March 22, 2010