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Wetland name or number D SC 2.0 Natural Heritage Wetlands (seep. 87) Natural Heritage wetlands have been identified by the Washington Natural Heritage []cat. I Prograin/DNR as either high quality undisturbed wetlands or wetlands that support state Threatened, Endangered, or Sensitive plant species. SC 2.1 Is the wetland unit being rated in a Section/Township/Range that contains a Natural Heritage wetland? (this question is used to screen out most sites before you need to contact WNHPIDNR) Srr/R information from Appendix DM or accessed from WNI IF/DNR web site ❑ YES= —contact WNHP/DNR (see p. 79) and go to SC 2.2 NO ✓❑ SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as or as a site with state threatened or endangered plant species? 0 YES = Category I NO =not a Heritage Wetland SC 3,0 Bogs (sce It. 87) Does the wetland unit (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below to idento- (f the wetland is a bog. If you answer yes you will ,still need to rate the wetland based on iiss functions, 1. Does the unit have organic soil horizons (i.e. layers of organic soil), either pcats or mucks, that compose 16 inches or more of the first 32 inches of the soil profile? (See Appendix B for a field key to identify organic soils)? Yes - go to Q. 3 = ❑✓ No - go to Q. 2 2. Does the unit have organic soils, either peats or mucks that are less than 16 incites deep over bedrock, or an impenneable hardpan such as clay or volcanic ash, or that are floating on a lake or pond? ❑ Yes - go to Q. 3 ❑✓ No - Is not a bog for purpose of rating 3. Does the unit have more than 70% cover of mosses at ground level, AND other plants, if present, consist of the "bog' species listed in Table 3 as a significant component of the vegetation (more than 30% of the total shrub and herbaceous cover consists of species in Table 3)? 0 Yes — Is a bog for purpose of rating 0 No - go to Q. 4 NOTE: If you are uncertain about the extent of mosses in the undcrstory you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16" deep. If the pH is less than 5.0 and the "bog" plant species in Table 3 are present, the wetland is a bog. /. Is the unit forested (> 30% cover) with sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepolc pine, quaking aspen, Englemann's spruce, or western white pine, WITH any of the spccies (or combination of species) on the bog species plant list in Table 3 as a significant component of the ground cover (> 30% coverage of the total shrub/herbaceous cover)? 2.❑YES = Category I No❑ Is not a bog for purpose of rating Wetland Rating Form — western Washington version 2 August2004 Wetland name or number 1) 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? Ifyou 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 arc 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 are 80 — 200 years old OR have average diameters (dbh) exceeding 21 inches (53cm); 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. ❑YES = Category 1 NO ✓❑not a forested wettand with special characteristics Cat, 1 ❑ 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) ❑YES = Go to SC 5.1 NOZ✓ 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). ❑ At least'/< of the landward edge of the wetland has a 100 R buffer of shrub, forest, or un-grazed or un-mowed grassland. ❑ Cat. I ❑Thc wetland is larger than 1/10 acre (4350 square feet) ❑YES = Category I ❑NO = Category II Wetland RatingForm— western Washington version 2 August 2004 [—]cat. 11