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Wetland name or number A DEPRESSfONAL AND FLATS WETLANDS Water Quality Functions -Indicators that the site functions to improve water quality D 1.0. Does the site have the potential to improve water quality? D 1.1. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression (QUESTION 7 on key) with no surface water leaving it (no outlet). points= 3 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outlet. points = 2 2 ❑ Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowing points = 1 ❑ Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch. points = 1 D 1.2. The soil 2 in below the surface (or duff laver) is true clay or true organic 0 (use NRCS definitions). Yes =4 No = 0 D 1.3. Characteristics and distribution of persistent plants (Emergent, Scrub-shrub, and/or Forested Cowardin classes): Wetland has persistent, ungrazed, plants > 95% of area points = 5 Wetland has persistent, ungrazed, plants > 1/2 of area points = 3 5 Wetland has persistent, ungrazed plants> 1/10 of area points = 1 Wetland has persistent, ungrazed plants < 1/10 of area points = 0 D 1.4. Characteristics of seasonal pondinq or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is> '/2 total area of wetland points =4 0 Area seasonally ponded is> 1/4 total area of wetland points=2 Area seasonally ponded is< 1/4 total area of wetland points = 0 Total for D 1 Add the points in the boxes above 7 Rating of Site Potential If score is ❑ 12-16=H El 6-11 = M ❑0-5= L Record the rating on the first page D 2.0. Does the landscape have the potential to support the water quality function of the site? D 2.1. Does the wetland unit receive stormwater discharges? Yes = 1 No = 0 1 D 2.2. Is > 10% of the area within 150 ft of the wetland in land uses that 1 generate pollutants? Yes = 1 No = 0 D 2.3. Are there septic systems within 250 ft of the wetland? Yes = 1 No = 0 0 D 2.4. Are there other sources of pollutants coming into the wetland that are not listed in questions D 2.1 - D 2.3? 0 Source Yes = 1 No = 0 Total for D 2 Add the points in the boxes above 2 Rating of Landscape Potential If score is:❑ 3 or 4= H Cl 1 or 2= M ❑ 0= L Record the rating on the first page D 3.0. Is the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly(i.e., within 1 mi)to a stream, river, 1 lake, or marine water that is on the 303(d) list? Yes= 1 No = 0 D 3.2. Is the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? 1 Yes = 1 No = 0 D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality (answer YES if there is a TMDL for the basin in 0 which the unit is found)? Yes = 2 No = 0 Total for D 3 Add the points in the boxes above 2 Rating of Value If score is 0 2-4= H ❑ 1 =M ❑ 0=L Record the rating on the first page Wetland Rating System for Western WA:2014 Update Rating Form-Effective January 1,2015 5 WSDOT Adapted Form-March 2,2015