2320 106TH ST SW 2025-07-21 - Laserfiche WebLink

Wetland name or number A SC 4.0 Forested Wetlands (seep. 90) Does the wetland unit have at least 1 acre of forest that meet one of these criteria for the Department of Fish and Wildlife's forests as priority habitats? If you answer yes you will still need to rate the wetland based on its functions. Old -growth forests: (west of Cascade crest) Stands of at least two tree species, forming a multi -layered canopy with occasional small openings; with at least 8 trees/acre (20 trees/hoctare) that are at least 200 years of age OR have a diameter at breast height (dbh) of 32 inches (81 cm) or more. NOTE: The criterion for dbb is based on measurements for upland forests. Two -hundred year old trees in wetlands will often have a smaller dbh because their growth rates are often slower. The DPW criterion is and "OR' so old -growth forests do not necessarily have to have trees of this diameter. E] Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80 — 200 years old OR have average diameters (dbh) exceeding 21 inches (53em); crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old -growth. Cat. T ❑ ORES = Category 1 NO ✓(not a forested wetland with special characteristics SC 5.0 Wetlands in Coastal Lagoons (seep. 91) Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks, gravel banks, shingle, or, less frequently, rocks The lagoon in which the wetland is located contains surface water that is saline or brackish (> 0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom) DYES = Go to SC 5.1 NO 0 not a wetland in a coastal lagoon SC 5,1 Does the wetland meets all of the following three conditions? The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing), and has less than 20% cover of invasive plant species (see list of invasive species on p. 74). D At least 3/ of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or im-mowed grassland. 0 Cat. I 0 The wetland is larger than 1/10 acre (4350 square feet) DYES — Category 1 ❑NO = Category ll Cat. II Wetland Rating Folm— western Washington 20 August 2004 version2 Updated with new WDFW definitions Oct.2008