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Wetland name or number DEPRESSIONAL 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 O 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 > '/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 ponding or inundation: This is the area that is ponded for at least 2 months. See description in manual. Area seasonally ponded is> 1/2 total area of wetland points=4 2 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 9 Rating of Site Potential If score is: 0 12-16=H 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:0 3 or 4=H 0 1 or 2=M 0 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 2 which the unit is found)? Yes=2 No= 0 Total for D 3 Add the points in the boxes above 4 Rating of Value If score is: 2-4=H 0 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