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Wetland name or number SC 4.0 Forested Wetlands (see p. 90) Does the wetland have at least 1 acre of forest that meet one of these criteria for the Departiuent 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/hectare)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 dbh 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 DFW criterion is and "OR"so old- growth forests do not necessarily have to have trees of this diameter. ❑ Mature forests: (west of the Cascade crest) Stands where the largest trees arc 80-200 years old OR have average diameters (dbh) exceeding 21 in(53 cm); crown cover may be less than 100%; decay, decadence,numbers of snags, and quanitity of large downed material is generally less than that found in old-growtl Cat.I YES =Category 1 NO n not a forested wetland with special characteristics SC 5.0 Wetlands in Coastal Lagoons (see p. 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 surgace 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) YES—Go to SC 5.1 NO ❑not a wetland in a coastal lagoon Cat. I SC 5.1 Does the wetland meet 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). ❑At least 3/4 of the landward edge of the wetland has a 100 ft buffer of shrub, forest, or un-grazed or un-mowed grassland. Cat. II ['The wetalnd is larger than 1/10 acre (4350 square feet) YES =Category I NO=Category II Wetland Rating Form—western Washington 14 August 2004 Version 2 Updated with new WDFW definitions Oct.2008