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Wetland name or number <br /> R Riverine and Freshwater Tidal Fringe Wetlands Points <br /> WATER QUALITY FUNCTIONS - Indicators that wetland functions to improve (only I score <br /> water quality *box) <br /> R R 1.Does the wetland unit have the potential to improve water quality? (see p.52) <br /> R R I.1 Area of surface depressions within the riverine wetland that can trap sediments Figure— <br /> during a flooding event: <br /> Depressions cover>3/4 area of wetland +•' _ <br /> Depressions cover> 1/2 area of wetland .oints=4 f P <br /> If depressions>'A of area of unit draw polygons on aerial photo or map `7 <br /> Depressions present but cover< 1/2 area of wetland points=2 <br /> No depressions present points=0 <br /> R R 1.2 Characteristics of the vegetation in the unit(areas with>90%cover at person height); —,.,, Figure_ <br /> Trees or shrubs>2/3 the area of the unit tnt <br /> Trees or shrubs> 1/3 area of the unit points=6 <br /> Ungrazed. herbaceous plants>213 area of unit points=6 <br /> Ungrazed herbaceous plants> 1/3 area of unit points=3 <br /> Trees.shrubs,and ungrazed herbaceous< 1/3 area of unit points=0 <br /> Aerial photo or map showing polygons of different vegetation types <br /> R Add the points in the boxes above I 2_ <br /> 1 <br /> R R 2. Does the wetland unit have the opportunity to improve water quality? (see p.53) <br /> Answer YES if you know or believe there are pollutants in groundwater or surface water <br /> coming into the wetland that would otherwise reduce water quality in streams. lakes or <br /> groundwater downgradient from the wetland?Note which of the following conditions <br /> provide the sources of pollutants. A unit may have pollutants coming from several <br /> sources, but any single source would qualify as opportunity. <br /> — Grazing in the wetland or within 150ft <br /> — Untreated stormwater discharges to wetland <br /> — Tilled fields or orchards within 150 feet of wetland <br /> — A stream or culvert discharges into wetland that drains developed areas. <br /> residential areas,farmed fields,roads,or clear-cut logging <br /> )4 Residential,urban areas.golf courses are within 150 ft of wetland <br /> — The river or stream linked to the wetland has a contributing basin where human <br /> activities have raised levels of sediment,toxic compounds or nutrients in the river <br /> water above standards for water quality multiplier <br /> — Other <br /> YES multiplier is 2 NO multiplier is I <br /> R TOTAL-Water Quality Functions Multiply the score from R 1 by R 2 <br /> Add score to table on p. 1 2-1 <br /> Comments <br /> Wetland Rating Form—western Washington 7 August 2004 <br /> version 2 Updated with new WDFW definitions Oct.2008 <br />