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HomeMy WebLinkAboutWetland Ratings 901142001Wetland name or number RATING SUMMARY - Western Washington Nameofwetland(orrD#): KfZr n'I +=+e,^ oateofsitevisit: e)r, l."rl nat"a Uy D LLETHI{^{ aW lL 'Trained by rcotogy?Xes -No Date of triini ng bf Zory HGM Class used f ot ratin|. T\t=PQ-B*WrtL- Wetland has multiple HGM classes?_y * N NOTE: Form is not complete without the figures requested (Jigures can be combined). Source of base aerial photo/map ,r8fr6 OVERAtt WETLAND CATEGORY - (based on functions- or speciat characteristics-) t. Category of wetland based on FUNCTIONS _Category I -Total score = 23 - 27 Category Il - Total score = 20 - 22 X. Category lll - Total score = LG - 19 Category lV-Total score = 9 - 15 2. Category based on SPECIAL CHARACTERISTICS of wetland I [Art6oRY" Estuarine I II Wetland of High Conservation Value I Bog I Mature Forest I Old Growth Forest I Coastal Lagoon I II lnterdunal III III IV None of the above Wetland Rating System for Western WA: 2014 Update Rating Form - Effective ]anuary L,20Ls Score for eachfunction based on three ratinss (.orde! of rotings $ not importont) 9 = H,H,H 8 = H,H,M 7 = H,H,L 7 = H,M,M 6 = H,M,L 6; M,M,M 5 = H,L,L 5 = M,M,L 4 = M,L,L 3 = L,L,L Circle the appropriote rotings Site Potential FI @ L H M(P H MD Landscape Potential o'M L H@ L H @) tj Value H @ L H @ L H n1_@-TOTAT Score Based on Ratings q I 5 4 lb CHARACTEAISTIC FUNCTION Improuing,. ,Watdf Qualiff llydrolo$ic Habitat DEPRESSIONAL AND FLATS WETLANDS Water Quality Functions - lndicators that the site functions to improve water quality D 1.0. Does the site have the potentialto 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 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 a_ D L.2. The soil 2 in below the surface (or duff laver) is true clay or true organic (use A/RCS definitions).Yes = 4 No = 0 e 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 Wetland has persistent, ungrazed, plants>/, of area Wetland has persistent, ungrazed plants r'/roof area Wetland has persistent, ungrazed plants <'1roof area points = 5 points = 3 points = 1 points = 0 3 points = 4 points = 2 points = 0 D 1.4. Characteristics of seasonal pondins or inundation: This is the orea thot is ponded for ot leost 2 months. See description in monual. Area seasonally ponded is > %total area of wetland Area seasonally ponded is > % total area of wetland Area seasonally ponded is < % total area of wetland ? Total for D 1 Add the points in the boxes above n RatingofSitePotential Ifscoreis: 12-15=H XS-ff =U _0-5=L Recordtheratingonthefirstpoge Wetland name or number Rating of Landscape Potential tf score is:$9 or 4=H -1-or2=M 0=t Record the roting onthefirst pdge Wetland Rating System for Western WA: 2074 Update Rating Form - Effective January L,2075 D 2.0. Does the landscape have the potential to support the water quality function of the site? D 2.L. Does the wetland unit receive stormwater discharges?Yes=L No=O I D 2.2.|s > L0% of the area within 150 ft of the wetland in land uses that generate pollutants? Yes = 1 No = 0 I I D 2.3. Are there septic systems within 250 ft of the wetland?Yes=1 No=O l 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? Yes=L No=O I Total for D 2 Add the points in the boxes above I D 3.0. ls the water quality improvement provided by the site valuable to society? D 3.1. Does the wetland discharge directly (i.e., within 303(d) list? 1 mi) to a stream, river, lake, or marine water that is on the Yes=1 No=O r D 3.2. ls the wetland in a basin or sub-basin where an aquatic resource is on the 303(d) list? Yes = 1 No = 0 0 D 3.3. Has the site been identified in a watershed or local plan as important for maintaining water quality (onswer YES if there is o TMDL for the bosin in which the unit is found)?Yes=2 No=0 O Total for D 3 Add the points in the boxes above r Rating of Value If score is:_2-4 = H \(1 = M _0 = L Record the roting on the first poge Source AL1 uU / *.i L t+ '\ n DEPI D 4.0. Does the site have the potentialto reduce flooding and erosion? D 4.L. Characteristics of surface water outflows from the wetland: Wetland is a depression or flat depression with no surface water leaving it (no outlet)points = 4 Wetland has an intermittently flowing stream or ditch, OR highly constricted permanently flowing outletpoints = 2 Wetland is a flat depression (QUESTION 7 on key), whose outlet is a permanently flowing ditch points = 1 Wetland has an unconstricted, or slightly constricted, surface outlet that is permanently flowi ints = 0 D 4.2. Depth of storase durins wet periods: Estimote the height of ponding obove the bottom of the outlet. For wetlonds with no outlet, meosure from the surfoce of permonent woter or if dry, the deepest port. Marks of ponding are 3 ft or more above the surface or bottom of outlet Marks of ponding between 2 ft to < 3 ft from surface or bottom of outlet Marks are at least 0.5 ft to < 2 ft from surface or bottom of outlet The wetland is a "headwater" wetland Wetland is flat but has small depressions on the surface that trap water Marks of ponding less than 0.5 ft (6 in points = 7 points = 5 points = 3 points = 3 points = 1 D 4.3. Contribution of the wetland to storase in the watershed; Estimote the rotio of the oreo of upstream bosin contributing surfoce woter to the wetlond to the oreo of the wetlond unit itself. The area of the basin is less than 10 times the area of the unit The area of the basin is 10 to 100 times the area of the unit The area of the basin is more than 100 times the area of the unit Entire wetland is in the Flats class points = 5 points = 3 points = 0 Total for D 4 Add the points in the boxes above Wetland name or number Rating of Site Potential lf score 12-15=H _5-11=M 0-5=L Wetland Rating System for Western WA: 2014 Update Rating Form - Effective fanuary 1,20Ls Record the roting on the first page D 5.0. Does the landscape have the potentialto support hydrologic functions of the site? D 5.1. Does the wetland receive stormwater discharges?Yes=1 No=0 t D 5.2.|s >L0% of the area within 150 ft of the wetland in land uses that generate excess runoff? Yes = L No = 0 D 5.3. ls more than 25% of the contributing basin of the wetland covered with intensive human land uses (residential at >L residen cef ac, urban, commercial, agriculture, etc.)? !y^ Yes = 1 No = 0 O Total for D 5 Add the points in the boxes above 2 Rating of Landscape Potential If score is:_3 = H XJ or 2 = M _0 = L Record the roting on the first page D 6.0. Are the hydrologic functions provided by the site valuable to society? D 6.1. The unit is in a landscape that has flooding oroblems. Choose the description thot best motches conditions oround the wetlond unit being roted. Do not odd p6ints. Choose the hiahest score if more thon one condition is met. The wetland captures surface water that would otherwise flow down-gradient into areas where flooding has damaged human or natural resources {e.g., houses or salmon redds):o Flooding occurs in a sub-basin that is immediately down-gradient of unit.o Surface flooding problems are in a sub-basin farther down-gradient. Flooding from groundwater is an issue in the sub-basin. water stored by the wetland cannot reach areas that flood. Exploin why There are no problems with flooding downstream of the wetland. points = 2 points = L points = L points = 0 points = 0 The existing or potential outflow from the wetland is so constrained by human or natural conditions that the t D 6.2. Has the site been identified as important for flood storage or flood conveyance in a regional flood control plan? Yes=2 No=0 o Total for D 6 Add the points in the boxes above Rating of Value lf score is'422-4 = H }(-l = M _0 = L Record the rotino on theing first page & I o 3 t Wetland name or number HABITAT FUNCNONS These questions apply to wetlands of all HGM classes. lndicators that site functions to provide important habitat H L.0. Does the site have the potentialto provide habitat? 1.1. Structure of plant community lndicotors are Cowardin closses ond stroto within the Forested closs. Check the Cowardin plant classes in the wetland. Up to 10 potches may be combined for eoch class to meet the threshold of % oc or more thon 10% of the unit if it is smoller than 2.5 ac. Add the number of structures checked. lf the unit has o Forested closs, check if: -The Forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) that each cover 20% within the Forested polygon Aouatic bed -)fEmereent ES.rrU-shrub (areas where shrubs have > 30% cover) __Forested (areas where trees have > 30% cover) 4 structures or more: points = 4 3 structures: points = 2 2 structures: points = 1- L structure: points = 0 t H L.2. Hydroperiods Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or To ac to count (see text for descriptions of hydroperiodsl. _Permanently flooded or inundated )4S.rronally flooded or inundated -*O..rsional ly flooded or inundated __Saturated only __Permanently flowing stream or river in, or adjacent to, the wetland _Seasonally flowing stream in, or adjacent to, the wetland __Lake Fringe wetland Freshwater tidal wetland 4 or more types present: points = 3 3 types present: points = 2 2 types presentr points = L l type present: points = 0 2 points 2 points t H 1.3. Richness of plant species Count the number of plant species in the wetland that cover at least 10 ft2. Different patches of the some species can be combined to meet the size threshold and you do not have to nome the species. Do not include Eurasion milfoil, reed conqrygrass, purple loosestrife, Conadian thistle lf you counted: > 19 species points = 2 5 - 19 species points = L < 5 species points = 0 I 1.4. lnterspersion of habitats Decide from the diagrams below whether interspersion among Cowardin plants classes (described in H 1.L), or the classes and unvegetated areas (can include open water or mudflats) is high, moderate, low, or none. tf you hove four or more plant closses or three classes and open woter, the roting is alwoys high. None = 0 points Low = 1 point Moderate All three diagrams in this row are HIGH = 3points points t Wetland Rating System for Western WA: 2074 Update Rating Form - Effective |anuary L,20Ls 13 / H 1.5. Special habitat features: Check the habitat features that are present in the wetland. The number of checks is the number of points. --Large, downed, woody debris within the wetland (> 4 in diameter and 6 ft long). __Standing snags (dbh > 4 in) within the wetland --Undercut banks are present for at least 6.6 ft (2 m) and/or overhanging plants extends at least 3.3 ft (1 m) over a stream (or ditch) in, or contiguous with the wetland, for at least 33 ft (L0 m) --Stable steep banks of fine material that might be used by beaver or muskrat for denning (> 30 degree slope) OR signs of reqent beaver activity are present (cut shrubs or trees thot hove not yet weothered where wood is exposed) -At least% ac of thin-stemmed persistent plants orwoody branches are present in areas that are permanently or seasonally inundated (structures for egg-loying by amphibions) -lnvasive plants cover less than 25% of the wetland area in every stratum of plants (see H 7.7 for list of strotol o Total for H 1 Add the points in the boxes above 1 I Rating of Site Potential lf score is:_15-18 = H _7-14 = fU )(0-6 = L Record the roting on the first poge Wetland name or number Rating of Value lf score is:_2 = H _1 = M X*0 = L Wetland Rating System for Western WA: 2Ot4 Update Rating Form - Effective |anuary 1,20Ls ft+ rating on the first page Record the roting on the first page 14 L rv1 H 2.0. Does the Iandscape have the potential to support the habitat functions of the site? H 2.1. Accessible habitat (include only habitot thot directly obuts wetlond unit). Calculote: Q V" undisturbed habitat/ft + [(% moderate and low intensity land uses) PISO= lf total accessible habitat is: ,'/, (33.3%l of 1 km polygon 20-33% of 1 km Polygon L0-L9% of L km Polygon < t0% of 1 km Polygon __% points = 3 points = 2 points = 1 points = 0 3 H2.2. Undisturbed habitat in 1 km Polygon around the wetland. Colculote: 0 % undisturbed habitatl00 +[(% moderate and low intensity land uses)/Z]-@ Undisturbed habitat > 50% of Polygon Undisturbed habitat L0-50% and in 1-3 patches Undisturbed habitat L0-50% and > 3 patches Undisturbed habitat <L0% of 1 km polygon __% points = 3 points = 2 pbints = 1 points = 0 o H 2.3. Land use intensity in 1 km Polygon: lf > 50% of 1 km Polygon is high intensity land use <50% of 1km Polygon is high intensity points = (- 2l points = 0 o Total for H 2 Add the points in the boxes above Rating of Landscape Potential lf score is:_4-5 = H Xt-3 = Vt < 1 = L Record the ratinq on the H 3.0. ls the habitat provided by the site valuable to society? H 3.1. Does the site provide habitat for species valued in laws, regulations, or policies? Choose only the highest score thatoppliestothewetlondbeingroted. _. - .. , -, .r,\.- _ At 1' ffi:ll],';:I;::jff[.T;:..:',;l#,,::.flp" t m n c w^ owrv6,s = 2 It provides habitat for Threatened or Endangered species (any plant or animal on the state or federal lists) It is mapped as a location for an individual WDFW priority species It is a Wetland of High Conservation Value as determined by the Department of Natural Resources It has been categorized as an important habitat site in a local or regional comprehensive plan, in a Shoreline Master Plan, or in a watershed plan Site has L or 2 priority habitats (listed on next page) within 100 m Site does not meet any of the criteri , points = 1 points = 0 0 l-'