3333 NASSAU ST 2024-08-07 - Laserfiche WebLink

Wetland name or number A CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Wetland Type Category Check off any criteria that apply to the wetland. List the category when the appropriate criteria are met. SC 1.0. Estuarine Wetlands Does the wetland meet the following criteria for Estuarine wetlands? ❑ The dominant water regime is tidal, ❑ Vegetated, and ❑ With a salinity greater than 0.5 ppt ❑ Yes-Go to SC 1.1 U No = Not an estuarine wetland SC 1.1. Is the wetland within a National Wildlife Refuge, National Park, National Estuary Reserve, Natural Area Preserve, State Park or Educational, Environmental,,or Scientific Reserve designated under WAC 332-30-151? ❑ Yes = Category I ❑ No -Go to SC 1.2 SC 1.2. Is the wetland unit at least 1 ac in size and meets at least two of the following three conditions? ❑ The wetland is relatively undisturbed (has no diking, ditching, filling, cultivation, grazing, and has less than 10% cover of non-native plant species. (If non-native species are Spartina, see page 25) ❑ 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. ❑ The wetland has at least two of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. ❑ Yes = Category I [U No = Category II SC 2.0.Wetlands of High Conservation Value (WHCV) SC 2.1. Has the WA Department of Natural Resources updated their website to include the list of Wetlands of High Conservation Value? ❑ Yes-Go toSC2.2 ❑No -Go toSC2.3 SC 2.2. Is the wetland listed on the WDNR database as a Wetland of High Conservation Value? ❑ Yes = Category I ❑ No= Not WHCV SC 2.3. Is the wetland in a Section/Township/Range that contains a Natural Heritage wetland? http://www1.dnr.wa.gov/nhp/refdesk/datasearch/wn hpwetlands.pdf ❑ Yes -Contact WNHP/WDNR and to SC 2.4 ❑ No = Not WHCV SC 2.4. Has WDNR identified the wetland within the S/T/R as a Wetland of High Conservation Value and listed it on their website? ❑ Yes = Category I El No ='Not WHCV SC 3.0. Bogs Does the wetland (or any part of the unit) meet both the criteria for soils and vegetation in bogs? Use the key below. If you answer YES you will still need to rate the wetland based on its functions. SC 3.1. Does an area within the wetland unit have organic soil horizons, either peats or mucks, that compose 16 in or more of the first 32 in of the soil profile? ❑ Yes - Go toSC3.3 ❑ No - Go toSC3.2 SC 3.2. Does an area within the wetland unit have organic soils, either peats or mucks, that are less than 16 in deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on top of a lake or pond? ❑ Yes-Go to SC 3.3 ❑ No = Is not a bog 0 SC 3.3. Does an area with peats or mucks have more than 70% cover of mosses at ground level, AND at least a 30% cover of plant species listed in Table 4? ❑ Yes = Is a Category I bog ❑ No -Go to SC 3.4 NOTE: If you are uncertain about the extent of mosses in the understory, you may substitute that criterion by measuring the pH of the water that seeps into a hole dug at least 16 in deep. If the pH is less than 5.0 and the plant species in Table 4 are present, the wetland is a bog. SC 3.4. Is an area with peats or mucks forested (> 30% cover)with Sitka spruce, subalpine fir, western red cedar, western hemlock, lodgepole pine, quaking aspen, Engelmann spruce, or western white pine,AND any of the species (or combination of species) listed in Table 4 provide more than 30% of the cover under the canopy? O Yes = Is a Category I bog I] No = Is not a bog Wetland Rating System for Western WA:2014 Update Rating Form-Effective January 1,2015 10 WSDOT Adapted Form-March 2, 2015