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Home My WebLink AboutBLD2010-00376 Wetland Delineation Report t ^�•� WET ILA.P41 LS. HABITAT HABITAT CORP. MITIGATION & CONSULTING August, 9 2010 C3H10W606 John Boulton 3590 E Quilcene Road Quilcene, WA 98376 c/o Stapf Construction Incorporated 211 S.Jacob Miller Road Quilcene, WA 98376 Property Location: 780 Boulton Road Quilcene, WA 98376 PARCEL#802 141005 RE: Wetland Delineation Waiver for Parcel#802 141 005 C3 Habitat Corp (C3) was authorized by Richard Stapf of Stapf Construction, INC, owner representative, to perform a wetland determination on the subject parcel. The purpose of this assessment is to search for any wetlands that may exist within 275 feet of the proposed reserve drainfield. Any wetlands that were identified are addressed in this letter report. The property is located at 780 Boulton Road, Quilcene Washington in Section 14 of Township 28N and Range 2W of the Willamette Meridian. Two sloped wetlands were identified and distances from the wetland's edge were measured using a laser range finder. Per Jefferson County Code (JCC) 18.22.370 - Waivers, the administrator may waive the requirement for a special report when the applicant demonstrates all of the following: (1) The proposal involved will not affect the critical area in a manner contrary to the goals, purposes and objectives of this code. (2) The minimum protection standards required by this chapter are satisfied. Two small wetlands exist within 275 feet of the proposed construction (reserve drainfield) and were field verified using the criteria for Routine Wetland Determination by the Army Corps of Engineer's most recent manual. Both wetlands are slope wetlands and are nearly identical in vegetation structure and hydrological character. The onsite wetlands were categorized using the Washington State Department of Ecology's Wetland Rating System for Western Washington, Version 2, and Updated October 2008. No formal delineation was performed because the rated wetland buffer exceeded the minimum requirements for non-delineated wetlands in distance to the proposed reserve drainfield. r-I a) a4 crs C3 Habitat Corp. 10507 W Belfair Valley RD, Bremerton WA Phone 360.277.4354 Fax 800.756.0996 ; BOUL ON WETLAND WAIVER C3H10P6 6 OCTOBER, 2010 SITE VICINITY MAP 101 A d eS . . . . . ,va yJ to % Discovery Bay 20 101 \� ,4 101 . . A G, of« ^ ƒ. �. . . . y . . . . . . . � �� . . . i/ ew,»_r-,11.1 , N t / C3 Habitat Corp. N E 3530 Old BeA E Hwy#6- BeA i WA 98528 Phone 38$277.435 Fax 800.756.0996 BOULTON WETLAND WAIVER C3H10P606 OCTOBER, 2010 LITERATURE REVIEW NWI MAPPER — The project site and vicinity was reviewed prior to visiting the site. The National Wetland Inventory was referenced for wetlands that have previously been inventoried. There are wetlands documented onsite but south of the existing residence and more than 275 feet from the proposed construction of the reserve drainfield. The wetlands identified on the NWI Map are related to a fish-bearing stream; also located south of the existing residence. Note: The existing residence burned down and is being replaced. FPARS MAP—The Forest Practice and Resource Map identifies two main streams within the property. One, a non-fish bearing stream which is seasonal and two, a fish-bearing stream that is south of the existing residence. JEFFERSON COUNTY ENVIRONMENTALLY SENSITIVE MAP (ONLINE) — The JCC ESA Map shows a network of wetlands in the river valley that extend across Boulton Road onto the subject property. The map is incorrect depicting the exact location and size of the wetlands that extend onto the property. See the Wetland Site Plan provided with this report for actual locations of onsite wetlands within 275 feet of the proposed reserve drainfield. NWI MAP a+. " �'��+ U.S. Fishand Wildlife Service Boulton NWI Map a National Wetlands Invento Oct22_IOtC Wetlands a+ •Q � h•d r creulwater Ernergarir .ravlwater F pre 5/eti S11Rffi £stuanne ano Marne Deetwater • p/ • $ I : Esluanne ano Vanne • • S ` r tires:N'a1H Pala • (M • , ♦ •iI' ,+ .er ar s - .ake �rJF L fw p « .... A..< y R.¢ehtitl • as. ` to Riparian Herbaceous • IfC, ForesteauSnruo y ." p.. .l E'1YA fi Aof %(4, L ' : *_ ' t fir, -- pm.M n.cm ^a va raw CC wasw a«+a.r n-•. a s v tn.accuracy«.a".7"aa a rw wa ora Cann an e a+0•ai «nae rwaUO 0aa Scold r.u,.o n Ymarn MU s►t,++mUaa,dra,s m CI ywnre WOW.*an User Remarks: m Lao C3 Habitat Corp. NE 3530 Old Belfair Hwy#56- Belfair WA 98528 Phone 360.277.4354 Fax 800.756.0996 BOULTON WETLAND WAIVER C3H10P606 OCTOBER, 2010 FPARS MAP PA 1—„,, --7///' at ., , ..„- = t = L j{ P C :}90554p 194.542 �* . 05 4: .A.A '`;' : sot iRtc1 0 1 a� ll: —04' (//(//1 ,\ j 1 p at x A' 4v�pMpra, ( et r r }905520 w 1905522 ,, ,* 190552'- ' 190552 ., \ r', m 1.1 r&•a. 7 P # 1905500 1905502 * r j 1905506 n *C Nv S r' ,, , " m r s a ,..* (-- . \ 471.4 WO CO a C3 Habitat Corp. NE 3530 Old Belfair Hwy#56- Belfair WA 98528 Phone 360.277,4354 Fax 800.756.0996 BOULTON WETLAND WAIVER C3H10P606 OCTOBER, 2010 JEFFERSON COUNTY ENVIRONMENTALLY SENSITIVE AREAS MAP I. , • .�+ I * °� n 842ea.002, bud421.,*, µrote /" .. t \ , .., . 3G2?4e c' , ?`� '�,*. d I _ ,' ' .r�z' . ''. 41 /. Vi; i 1 '' •4' r" ' ...' •.' • jam :' ; I ter. R .; b02S44<..103 w '„ OM "t ` i CM Y Aar .a a,•�3 ,� k k 5 :_ yt.a' {._ 12,4• i•z " B02'4400d$02444005 017" ,802.34002 7 '' :8{i2'44OC+4} L y�, a C3 Habitat Corp. NE 3530 Old Belfair Hwy#56- Belfair WA 98528 Phone 360.277.4354 Fax 800.756.0996 f BOULTON WETLAND WAIVER C3H10P606 OCTOBER, 2010 BLOW UP OF SEPTIC DESIGN BSA ) . t' C.TEGOiiY 3 kNETL, O 1 /7 .' / r.„,_40,05,,,s,,,,,.,...Arty 1./.4 i CA.EGA Y3 ...dB air. wETL:r,a 1/ lir ' ' --',.. W , way • 1Eti3tony SirainXtitkl ,," Approxmatt Locstwn sj Ns (:tt Rice rtt EESy 1 `,t i ��t�d` 24'7,.\\ 4,4,,t€3 I 40 1 d 2� ''\ \ g'S. \ '''''',-111:' 6 a N. I �� Extroll arrvoway Carport ��i '',., i I 1 I RESULTS Both wetlands were rated as Category III Sloped wetlands scoring a total of 43 points. Water quality function scored 20, hydrological function scored 8 and habitat function scored 15. Wetland A is approximately 4,600 square feet in size and Wetland B is approximately 2,200 square feet in size. Both wetlands originate from springs/seeps in the slope. The wetlands are hydrologically isolated from each other as well as the wetlands located to the east and across Boulton Road. au a4 cc a C3 Habitat Corp. NE 3530 Old Belfair Hwy#56-Belfair WA 98528 Phone 360.277.4354 Fax 800.756.0996 l { BOULTON WETLAND WAIVER C3H10P606 OCTOBER,2010 The applicant requests that a special report for this wetland be waived because the onsite wetland is well over 90 feet from the proposed development. Per JCC Table 18.22.330(2) —Minimum Wetland Buffers Necessary as Part of Qualifying for a Waiver from Delineation and Special Report, A Category Ill non-delineated wetland with a habitat score under 20 points, needs to be at least 90 feet away from proposed construction. Both identified wetlands found within 275 feet of the reserve drainfield qualify for a waiver from a special report as no impacts are expected from the proposed activity on the subject parcel and proposed construction is clearly outside of the regulated buffer. Respectfully submitted, Christy Christensen Senior Biologist C3 Habitat Corp. Attachments: 1. Rating Form 2. Wetland Boundary Map a) a. C3 Habitat Corp. NE 3530 Old Belfair Hwy#56-Belfair WA 98528 Phone 360.277.4354 Fax 800.756.0996 Wetland name or number WETLAND RATING FORM—WESTERN WASHINGTON Version 2-Updated July 2006 to increase accuracy and reproducibility among users Updated Oct 2008 with the new WDFW definitions for priority habitats Name of wetland(if known): N/A Boulton Farm Date of site visit: October 2010 Rated by C.Christensen-C3 Habitat Corp Trained by Ecology? Yes x No Date of training 01/2006 SEC: 14 TWNSHP: 28N RNGE:02W Is S/T/R in Appendix D? Yes No x Map of wetland unit: Figure 1 Estimated size Wetland A=4,600ft2(Approx.) Wetland B=2,200ft2(Approx.) SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II III xxxx IV Score for Water Quality Functions 20 Category I= Score>=70 Category II= Score 51-69 Score for Hydrologic Functions 8 Category III= Score 30-50 Score for Habitat Functions 15 Category IV= Score<30 I TOTAL score for Functions I 43 Category based on SPECIAL CHARACTERISTICS of wetland I II Does not Apply xxxx Final Category (choose the "highest" category from above) Ill Final Buffer Per Jefferson County Code 18.22.330(2)60 feet(Delineated)90 feet Not Delineated Summary of basic information about the wetland unit Wetland Unit has Special Wetland HGM Class Characteristics used for Rating Estuarine Depressional Natural Heritage Wetland Riverine Bog Lake-fringe Mature Forest Slope xxx Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal None of the above Check if unit has multiple HGM classes present Wetland Rating Form—western Washington 1 August 2004 version 2 To be used with Ecology Publication 04-06-025 Wetland name or number Does the wetland unit being rated meet any of the criteria below? If you answer YES to any of the questions below you will need to protect the wetland according to the regulations regarding the special characteristics found in the wetland. Check List for Wetlands That May Need Additional Protection YES NO (in addition to the protection recommended for its category) SP 1.Has the wetland unit been documented as a habitat for any Federally listed Threatened or Endangered animal or plant species (T/E species)? For the purposes of this rating system, "documented"means the wetland is on the X appropriate state or federal database. SP2.Has the wetland unit been documented as habitat for any State listed Threatened or Endangered animal species? For the purposes of this rating system, "documented"means the wetland is on the X appropriate state database. Note: Wetlands with State listed plant species are categorized as Category I Natural Heritage Wetlands (see p. 19 of data form). SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? SP4. Does the wetland unit have a local significance in addition to its functions? For example,the wetland has been identified in the Shoreline Master Program,the Critical Areas Ordinance,or in a local management plan as having special significance. To complete the next part of the data sheet you will need to determine the Hydrogeomorphic Class of the wetland being rated. The hydrogeomorphic classification groups wetlands into those that function in similar ways. This simplifies the questions needed to answer how well the wetland functions. The Hydrogeomorphic Class of a wetland can be determined using the key below. See p. 24 for more detailed instructions on classifying wetlands. Wetland Rating Form—western Washington 2 August 2004 version 2 Updated with new WDFW definitions Oct.2008 St Wetland name or number Classification of Wetland Units in Western Washington If the hydrologic criteria listed in each question do not apply to the entire unit being rated,you probably have a unit with multiple HGM classes. In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8. 1.Are the water levels in the entire unit usually controlled by tides(i.e. except during floods)? 1' —go to 2 YES—the wetland class is Tidal Fringe If yes,is the salinity of the water during periods of annual low flow below 0.5 ppt(parts per thousand)? YES—Freshwater Tidal Fringe NO—Saltwater Tidal Fringe(Estuarine) If your wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine wetlands. If it is Saltwater Tidal Fringe it is rated as an Estuarine wetland. Wetlands that were called estuarine in the first and second editions of the rating system are called Salt Water Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were categorized separately in the earlier editions,and this separation is being kept in this revision. To maintain consistency between editions,the term"Estuarine"wetland is kept. Please note,however, that the characteristics that define Category I and II estuarine wetlands have changed(see p. ). 2.The entire wetland unit is flat and precipitation is the only source(>90%) of water to it. Groundwater and surface water runoff are NOT sources of water to the unit. Ate—go to 3 YES—The wetland class is Flats If your wetland can be classified as a"Flats"wetland,use the form for Depressional wetlands. 3. Does the entire wetland unit meet both of the following criteria? The vegetated part of the wetland is on the shores of a body of permanent open water (without any vegetation on the surface) at least 20 acres (8 ha) in size; _At least 30%of the open water area is deeper than 6.6 ft(2 m)? 1 go to 4 YES—The wetland class is Lake-fringe(Lacustrine Fringe) 4.Does the entire wetland unit meet all of the following criteria? The wetland is on a slope(slope can be very gradual), The water flows through the wetland in one direction(unidirectional) and usually comes from seeps. It may flow subsurface, as sheetflow, or in a swale without distinct banks. The water leaves the wetland without being impounded? NOTE: Surface water does not pond in these type of wetlands except occasionally in very small and shallow depressions or behind hummocks (depressions are usually <3fi diameter and less than 1 foot deep). NO - go to 5 —The wetland class is Slope Wetland Rating Form—western Washington 3 August 2004 version 2 Updated with new WDFW definitions Oct.2008 I, I' Wetland name or number 5.Does the entire wetland unit meet all of the following criteria? The unit is in a valley, or stream channel,where it gets inundated by overbank flooding from that stream or river The overbank flooding occurs at least once every two years. NOTE: The riverine unit can contain depressions that are filled with water when the river is not flooding. NO x go to 6 YES—The wetland class is Riverine 6. Is the entire wetland unit in a topographic depression in which water ponds,or is saturated to the surface, at some time during the year. This means that any outlet, if present, is higher than the interior of the wetland. NV—go to 7 YES—The wetland class is Depressional 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding. The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched,but has no obvious natural outlet. NW—go to 8 YES—The wetland class is Depressional 8. Your wetland unit seems to be difficult to classify and probably contains several different HGM clases. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPLY TO DIFFERENT AREAS IN THE UNIT(make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in the second column represents 10%or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less than 10%of the unit; classify the wetland using the class that represents more than 90% of the total area. HGM Classes within the wetland unit being rated HGM Class to Use in Rating Slope+Riverine Riverine Slope+Depressional Depressional Slope+Lake-fringe Lake-fringe Depressional+Riverine along stream within boundary Depressional Depressional+Lake-fringe Depressional Salt Water Tidal Fringe and any other class of freshwater Treat as ESTUARINE under wetland wetlands with special characteristics If you are unable still to determine which of the above criteria apply to your wetland, or if you have more than 2 HGM classes within a wetland boundary, classify the wetland as Depressional for the rating. Wetland Rating Form—western Washington 4 August 2004 version 2 Updated with new WDFW definitions Oct.2008 • Wetland name or number D Depressional and Flats Wetlands Points WATER QUALITY FUNCTIONS - Indicators that the wetland unit functions to ( r 1 improve water quality box) D D 1. Does the wetland unit have the potential to improve water quality? (see p.38) D 1.1 Characteristics of surface water flows out of the wetland: Figure_ Unit is a depression with no surface water leaving it(no outlet) points=3 Unit has an intermittently flowing,OR highly constricted permanently flowing outlet points=2 Unit has an unconstricted,or slightly constricted,surface outlet (permanently flowing)points= 1 Unit is a"flat"depression(Q. 7 on key),or in the Flats class,with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch points= 1 (If ditch is not permanently flowing treat unit as "intermittently flowing") Provide photo or drawing S 1.2 The soil 2 inches below the surface(or duff layer)is clay or organic (use NRCS definitions) YES points=4 NO points=0 D 1.3 Characteristics of persistent vegetation(emergent,shrub,and/or forest Cowardin class) Figure_ D Wetland has persistent, ungrazed,vegetation>=95%of area points=5 Wetland has persistent,ungrazed,vegetation>= 1/2 of area points=3 Wetland has persistent,ungrazed vegetation>= 1/10 of area points= 1 Wetland has persistent,ungrazed vegetation<1/10 of area points=0 Map of Cowardin vegetation classes D 1.4 Characteristics of seasonal ponding or inundation. Figure D This is the area of the wetland unit that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition 5 out of 10 yrs. Area seasonally ponded is> 'A total area of wetland points=4 Area seasonally ponded is> ''A total area of wetland points=2 Area seasonally ponded is< '/ total area of wetland points=0 Map of Hydroperiods Total for D 1 Add the points in the boxes above I 1 D D 2.Does the wetland unit have the opportunity to improve water quality? (see Answer YES if you know or believe there are pollutants in groundwater or surface water P 44) coming into the wetland that would otherwise reduce water quality in streams,lakes or groundwater downgradient from the wetland.Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualms as opportunity. — Grazing in the wetland or within 150 ft — Untreated stormwater discharges to wetland — Tilled fields or orchards within 150 ft of wetland — A stream or culvert discharges into wetland that drains developed areas,residential areas, farmed fields,roads,or clear-cut logging — Residential,urban areas,golf courses are within 150 ft of wetland multiplier — Wetland is fed by groundwater high in phosphorus or nitrogen — Other YES multiplier is 2 NO multiplier is 1 D TOTAL-Water Quality Functions Multiply the score from D1 by D2 Add score to table on p. 1 Wetland Rating Form—western Washington 5 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number D Depressional and Flats Wetlands Points HYDROLOGIC FUNCTIONS - Indicators that the wetland unit functions to (only 1 Score reduce flooding and stream degradation per box) D 3.Does the wetland unit have the potential to reduce flooding and erosion? (see p.46) D D 3.1 Characteristics of surface water flows out of the wetland unit Unit is a depression with no surface water leaving it(no outlet) points=4 Unit has an intermittently flowing,OR highly constricted permanently flowing outlet points=2 Unit is a"flat"depression(Q. 7 on key),or in the Flats class,with permanent surface outflow and no obvious natural outlet and/or outlet is a man-made ditch points= 1 (If ditch is not permanently flowing treat unit as "intermittently flowing") Unit has an unconstricted,or slightly constricted, surface outlet (permanently flowing) points=0 D D 3.2 Depth of storage during wet periods Estimate the height of ponding above the bottom of the outlet.For units with no outlet measure from the surface of permanent water or deepest part(f dry). Marks of ponding are 3 ft or more above the surface or bottom of outlet points=7 The wetland is a"headwater"wetland" points=5 Marks of ponding between 2 ft to<3 ft from surface or bottom of outlet points=5 Marks are at least 0.5 ft to<2 ft from surface or bottom of outlet points=3 Unit is flat(yes to Q. 2 or Q. 7 on key)but has small depressions on the surface that trap water points= 1 Marks of ponding less than 0.5 ft points=0 D D 3.3 Contribution of wetland unit to storage in the watershed Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland unit itself. The area of the basin is less than 10 times the area of unit points=5 The area of the basin is 10 to 100 times the area of the unit points=3 The area of the basin is more than 100 times the area of the unit points=0 Entire unit is in the FLATS class points=5 Total for D 3 D Add the points in the boxes above D D 4.Does the wetland unit have the opportunity to reduce flooding and erosion? (seep. 49) Answer YES if the unit is in a location in the watershed where the flood storage,or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate,tide gate,flap valve,reservoir etc. OR you estimate that more than 90%of the water in the wetland is from groundwater in areas where damaging groundwater flooding does not occur. Note which of the following indicators of opportunity apply. — Wetland is in a headwater of a river or stream that has flooding problems — Wetland drains to a river or stream that has flooding problems — Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems multiplier — Other YES multiplier is 2 NO multiplier is 1 D TOTAL -Hydrologic Functions Multiply the score from D 3 by D 4 Add score to table on p. 1 Wetland Rating Form—western Washington 6 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number R Riverine and Freshwater Tidal Fringe Wetlands Points WATER QUALITY FUNCTIONS - Indicators that wetland functions to improve (Q Y 1 score water quality per box) R R 1. Does the wetland unit have the potential to improve water quality? (see p.52) R R 1.1 Area of surface depressions within the riverine wetland that can trap sediments Figure_ during a flooding event: Depressions cover>3/4 area of wetland points=8 Depressions cover> 1/2 area of wetland points=4 If depressions> '/of area of unit draw polygons on aerial photo or map Depressions present but cover< 1/2 area of wetland points=2 No depressions present points=0 R R 1.2 Characteristics of the vegetation in the unit(areas with>90%cover at person height): Figure Trees or shrubs>2/3 the area of the unit points=8 Trees or shrubs> 1/3 area of the unit points=6 Ungrazed,herbaceous plants>2/3 area of unit points=6 Ungrazed herbaceous plants> 1/3 area of unit points=3 Trees,shrubs,and ungrazed herbaceous< 1/3 area of unit points=0 Aerial photo or map showing polygons of different vegetation types R Add the points in the boxes above j R R 2. Does the wetland unit have the opportunity to improve water quality? (see 53) Answer YES if you know or believe there are pollutants in groundwater or surface water p. coming into the wetland that would otherwise reduce water quality in streams,lakes or groundwater downgradient from the wetland?Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualms as opportunity. — Grazing in the wetland or within 150ft — Untreated stormwater discharges to wetland — Tilled fields or orchards within 150 feet of wetland — A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields,roads, or clear-cut logging — Residential, urban areas,golf courses are within 150 ft of wetland — The river or stream linked to the wetland has a contributing basin where human activities have raised levels of sediment,toxic compounds or nutrients in the river water above standards for water quality multiplier — Other YES multiplier is 2 NO multiplier is I R TOTAL-Water Quality Functions Multiply the score from R 1 by R 2 Add score to table on p. 1 Comments Wetland Rating Form—western Washington 7 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number R Riverine and Freshwater Tidal Fringe Wetlands Points HYDROLOGIC FUNCTIONS - Indicators that wetland functions to reduce (only 1 score flooding and stream erosion per box) R 3.Does the wetland unit have the potential to reduce flooding and erosion? (see p.54) R R 3.1 Characteristics of the overbank storage the unit provides: Figure_ Estimate the average width of the wetland unit perpendicular to the direction of the flow and the width of the stream or river channel(distance between banks). Calculate the ratio: (average width of unit)/(average width of stream between banks). If the ratio is more than 20 points=9 If the ratio is between 10—20 points=6 If the ratio is 5- <10 points=4 If the ratio is 1 -<5 points=2 If the ratio is< 1 points= 1 Aerial photo or map showing average widths R R 3.2 Characteristics of vegetation that slow down water velocities during floods: Treat Figure large woody debris as `forest or shrub". Choose the points appropriate for the best description. (polygons need to have >90%cover at person height NOT Cowardin classes): Forest or shrub for>1/3 area OR herbaceous plants>2/3 area points=7 Forest or shrub for> 1/10 area OR herbaceous plants> 1/3 area points=4 Vegetation does not meet above criteria points=0 Aerial photo or map showing polygons of different vegetation types R Add the points in the boxes above R R 4. Does the wetland unit have the opportunity to reduce flooding and erosion? (see p.57) Answer YES if the unit is in a location in the watershed where the flood storage,or reduction in water velocity,it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Note which of the following conditions apply. — There are human structures and activities downstream(roads,buildings,bridges, farms)that can be damaged by flooding. — There are natural resources downstream(e.g. salmon redds)that can be damaged by flooding — Other multiplier (Answer NO if the major source of water to the wetland is controlled by a reservoir or the wetland is tidal fringe along the sides of a dike) YES multiplier is 2 NO multiplier is 1 R TOTAL -Hydrologic Functions Multiply the score from R 3 by R 4 Add score to table on p. 1 Comments Wetland Rating Form—western Washington 8 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number L Lake-fringe Wetlands Points WATER QUALITY FUNCTIONS - Indicators that the wetland unit functions to WY I score improve water quality box) L L 1. Does the wetland unit have the potential to improve water quality? (see 59 P• ) L L 1.1 Average width of vegetation along the lakeshore (use polygons of Cowardin classes): Figure Vegetation is more than 33ft(10m)wide points=6 Vegetation is more than 16(5m)wide and<33ft points=3 Vegetation is more than 6ft(2m)wide and<16 ft points= 1 Vegetation is less than 6 ft wide points=0 Map of Cowardin classes with widths marked L L 1.2 Characteristics of the vegetation in the wetland: choose the appropriate description Figure that results in the highest points, and do not include any open water in your estimate of coverage. The herbaceous plants can be either the dominant form or as an understory in a shrub or forest community. These are not Cowardin classes. Area of Cover is total cover in the unit, but it can be in patches. NOTE:Herbaceous does not include aquatic bed. Cover of herbaceous plants is>90%of the vegetated area points=6 Cover of herbaceous plants is>2/3 of the vegetated area points=4 Cover of herbaceous plants is>1/3 of the vegetated area points=3 Other vegetation that is not aquatic bed or herbaceous covers >2/3 unit points=3 Other vegetation that is not aquatic bed in> 1/3 vegetated area points= 1 Aquatic bed vegetation and open water cover>2/3 of the unit points=0 Map with polygons of different vegetation types L Add the points in the boxes above 1 1 L L 2.Does the wetland have the opportunity to improve water quality? see 61 Answer YES if you know or believe there are pollutants in the lake water,or polluted ( R ) surface water flowing through the unit to the lake. Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualms as opportunity. — Wetland is along the shores of a lake or reservoir that does not meet water quality standards — Grazing in the wetland or within 150ft — Polluted water discharges to wetland along upland edge — Tilled fields or orchards within 150 feet of wetland — Residential or urban areas are within 150 ft of wetland multiplier — Parks with grassy areas that are maintained,ballfields,golf courses (all within 150 ft. of lake shore) — Power boats with gasoline or diesel engines use the lake — Other YES multiplier is 2 NO multiplier is 1 L TOTAL -Water Quality Functions Multiply the score from L1 by L2 Add score to table on p. 1 Comments Wetland Rating Form-western Washington 9 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number L Lake-fringe Wetlands Points HYDROLOGIC FUNCTIONS - Indicators that the wetland unit functions to to4Y I score reduce shoreline erosion per box) L L 3.Does the wetland unit have the potential to reduce shoreline erosion? (see p.62) L L 3 Distance along shore and average width of Cowardin classes along the lakeshore(do Figure not include aquatic bed): (choose the highest scoring description that matches conditions in the wetland) >'/4 of distance is shrubs or forest at least 33 ft(lOm)wide >'/4 of distance is shrubs or forest at least 6 ft. (2 m)wide points=6 points=4 > '/4 distance is shrubs or forest at least 33 ft(lOm)wide Vegetation is at least 6 ft(2m)wide (anypoints=4 type except aquatic bed) points=2 Vegetation is less than 6 ft(2m)wide(any type except aquatic bed) points=0 Aerial photo or map with Cowardin vegetation classes L Record the points from the box above 1 L L 4.Does the wetland unit have the opportunity to reduce erosion? Are there features along the shore that will be impacted if the shoreline erodes? Note (see p.63) which of the following conditions apply. — There are human structures and activities along the upland edge of the wetland (buildings,fields)that can be damaged by erosion. — There are undisturbed natural resources along the upland edge of the wetland(e.g. mature forests other wetlands)than can be damaged by shoreline erosion — Other multiplier YES multiplier is 2 NO multiplier is 1 L TOTAL -Hydrologic Functions Multiply the score from L 3 by L 4 Add score to table on p. 1 Comments Wetland Rating Form—western Washington 10 version 2 Updated with new WDFW definitions Oct.2008 August 2004 , Wetland name or number S Slope Wetlands Points WATER QUALITY FUNCTIONS - Indicators that the wetland unit functions to (only I score improve water quality per box) S S 1. Does the wetland unit have the potential to improve water quality? (see p.64) S S 1.1 Characteristics of average slope of unit: Slope is l%or less (a 1%slope has a 1 foot vertical drop in elevation for every 100 ft horizontal distance) points=3 Slope is 1%-2% points=2 Slope is 2%-5%nxx 1 points= 1 Slope is greater than 5% points=0 S S 1.2 The soil 2 inches below the surface(or duff layer)is clay or organic (use NRCS definitions) 3 YTS=3 points NO=0 points S S 1.3 Characteristics of the vegetation in the wetland that trap sediments and pollutants: Figure Choose the points appropriate for the description that best fits the vegetation in the wetland. Dense vegetation means you have trouble seeing the soil surface(>75% cover), and uncut means not grazed or mowed and plants are higher than 6 inches. Dense,uncut,herbaceous vegetation>90%of the wetland area points=6 Dense,uncut,herbaceous vegetation> 1/2 of area points=3 6 Dense,woody,vegetation> 'A of area points=2 Dense, uncut,herbaceous vegetation> 1/4 of area points= 1 Does not meet any of the criteria above for vegetation points=0 Aerial photo or map with vegetation polygons S Total for S 1 Add the points in the boxes above ! 10 S S 2.Does the wetland unit have the opportunity to improve water quality? (see 6 P• 7) Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams, lakes or groundwater downgradient from the wetland. Note which of the following conditions provide the sources of pollutants. A unit may have pollutants coming from several sources, but any single source would qualms as opportunity. xxxx — Grazing in the wetland or within 150ft — Untreated stormwater discharges to wetland X'0°`Tilled fields, logging, or orchards within 150 feet of wetland — Residential, urban areas, or golf courses are within 150 ft upslope of wetland multiplier — Other 2 YES multiplier is 2 NO multiplier is 1 S TOTAL-Water Quality Functions Multiply the score from S 1 by S2 20 Add score to table on p. 1 Comments Wetland Rating Form—western Washington 11 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number S Slope Wetlands Points HYDROLOGIC FUNCTIONS - Indicators that the wetland unit functions to (o lY t score reduce flooding and stream erosion per box) S 3. Does the wetland unit have the potential to reduce flooding and stream (see p.68) erosion? S S 3.1 Characteristics of vegetation that reduce the velocity of surface flows during storms. Choose the points appropriate for the description that best fit conditions in the wetland. (stems of plants should be thick enough(usually> 1/8in), or dense enough, to remain erect during surface flows) Dense,uncut, rigid vegetation covers >90%of the area of the wetland. points=6 Dense,uncut,rigid vegetation> 1/2 area of wetland points=3 6 Dense,uncut,rigid vegetation> 1/4 area points= 1 More than 1/4 of area is grazed,mowed,tilled or vegetation is not rigid points=0 S S 3.2 Characteristics of slope wetland that holds back small amounts of flood flows: The slope wetland has small surface depressions that can retain water over at least 10%of its area. YES points=2 2 NO points=0 I Add the points in the boxes above I 8 S S 4.Does the wetland have the opportunity to reduce flooding and erosion? (seep. 70) Is the wetland in a landscape position where the reduction in water velocity it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows? Note which of the following conditions apply. — Wetland has surface runoff that drains to a river or stream that has flooding problems — Other multiplier (Answer NO if the major source of water is controlled by a reservoir(e.g. wetland is a seep 1 that is on the downstream side of a dam) YES multiplier is 2 NO multiplier is 1 S TOTAL -Hydrologic Functions Multiply the score from S 3 by S 4 Add score to table on p. 1 8 Comments Wetland Rating Form—western Washington 12 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number These questions apply to wetlands of all HGM classes. Points HABITAT FUNCTIONS - Indicators that unit functions to provide important habitat per�b e H 1. Does the wetland unit have the potential to provide habitat for many species? H 1.1 Vegetation structure(seep. 72) Figure Check the types of vegetation classes present(as defined by Cowardin)-Size threshold for each class is %acre or more than 10%of the area if unit is smaller than 2.5 acres. Aquatic bed x Emergent plants x Scrub/shrub(areas where shrubs have>30%cover) x Forested(areas where trees have>30%cover) If the unit has a forested class check if x 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 Add the number of vegetation structures that qualify. If you have: 4 structures or more points=4 4 Map of Coward in vegetation classes 3 structures points=2 2 structures points= 1 1 structure points=0 _ H 1.2.Hydroperiods(see p. 73) Figure Check the types of water regimes (hydroperiods)present within the wetland. The water regime has to cover more than 10%of the wetland or'/acre to count. (see text for descriptions of hydroperiods) Permanently flooded or inundated 4 or more types present points=3 x _Seasonally flooded or inundated 3 types present points=2 Occasionally flooded or inundated 2 types present point= 1 x Saturated only 1 type present points=0 t Permanently flowing stream or river in, or adjacent to,the wetland Seasonally flowing stream in,or adjacent to,the wetland Lake fringe wetland =2 points Freshwater tidal wetland=2 points Map of hydroperiods H 1.3. Richness of Plant Species (seep. 75) Count the number of plant species in the wetland that cover at least 10 ft2. (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass,purple loosestrife, Canadian Thistle If you counted: > 19 species points=2 List species below if you want to: 5 - 19 species points= 1 <5 species points=0 t Total for page 6 Wetland Rating Form—western Washington 13 August 2004 version 2 Updated with new WDFW definitions Oct.2008 c Wetland name or number H 1.4. Interspersion of habitats(seep. 76) Figure Decide from the diagrams below whether interspersion between Cowardin vegetation classes(described in H 1.1),or the classes and unvegetated areas(can include open water or mudflats)is high,medium, low,or none. E----) 0 idni: None=0 points Low= 1 point �� xxx ka% D.... ,, 41213144412524 IN\\\N,. . .. �/ v [riparian braided channels] High =3 points NOTE: If you have four or more classes or three vegetation classes and open water the rating is always"high". Use map of Cowardin vegetation classes H 1.5. Special Habitat Features: (seep. 77) Check the habitat features that are present in the wetland. The number of checks is the number of points you put into the next column. Large,downed,woody debris within the wetland(>4in. diameter and 6 ft long). Standing snags(diameter at the bottom>4 inches)in the wetland Undercut banks are present for at least 6.6 ft(2m)and/or overhanging vegetation extends at least 3.3 ft(1m)over a stream(or ditch)in,or contiguous with the unit,for at least 33 ft (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (>30degree slope)OR signs of recent beaver activity are present(cut shrubs or trees that have not yet turned grey/brown) At least 'V,acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated.(structures for egg-laying by amphibians) x Invasive plants cover less than 25%of the wetland area in each stratum of plants NOTE: The 20%stated in early printings of the manual on page 78 is an error. H 1. TOTAL Score - potential for providing habitat I I Add the scores from H1.1, H1.2, H1.3, H1.4, H1.5 I — s 1 Comments ---� Wetland Rating Form—western Washington 14 August 2004 version 2 Updated with new WDFW definitions Oct.2008 1 Wetland name or number H 2.Does the wetland unit have the opportunity to provide habitat for many species? H 2.1 Buffers (see p. 80) Figure Choose the description that best represents condition of buffer of wetland unit. The highest scoring criterion that applies to the wetland is to be used in the rating. See text for definition of "undisturbed" Area around wetland has recently been logged!!!! — 100 m(330ft)of relatively undisturbed vegetated areas,rocky areas,or open water >95% of circumference. No structures are within the undisturbed part of buffer. (relatively undisturbed also means no-grazing,no landscaping,no daily human use) Points=5 — 100 m(330 ft)of relatively undisturbed vegetated areas,rocky areas,or open water > 50% circumference. Points=4 — 50 m(170ft)of relatively undisturbed vegetated areas,rocky areas,or open water>95% circumference. Points=4 — 100 m(330ft)of relatively undisturbed vegetated areas,rocky areas,or open water>25% circumference, . Points=3 — 50 m(170ft)of relatively undisturbed vegetated areas,rocky areas,or open water for> 50%circumference. Points=3 If buffer does not meet any of the criteria above — No paved areas(except paved trails)or buildings within 25 m(80ft)of wetland>95% circumference. Light to moderate grazing,or lawns are OK. Points=2 — No paved areas or buildings within 50m of wetland for>50%circumference. Light to moderate grazing,or lawns are OK. Points=2 — Heavy grazing in buffer. Points=1 — Vegetated buffers are<2m wide(6.6ft)for more than 95%of the circumference(e.g.tilled fields,paving,basalt bedrock extend to edge of wetland Points=0. — Buffer does not meet any of the criteria above. Points=1 Aerial photo showing buffers H 2.2 Corridors and Connections(seep. 81) H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland)that is at least 150 ft wide,has at least 30%cover of shrubs,forest or native undisturbed prairie,that connects to estuaries, other wetlands or undisturbed uplands that are at least 250 acres in size? (dams in riparian corridors,heavily used gravel roads,paved roads, are considered breaks in the corridor). YES=4points (go toH2.3) )Nexot gotoH2.2.2 H 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland)that is at least 50ft wide,has at least 30%cover of shrubs or forest,and connects to estuaries,other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-fringe wetland,if it does not have an undisturbed corridor as in the question above? YES=2 points (go to H2.3) Negoetxlixkligoocx H 2.2.3 Is the wetland: within 5 mi(8km)of a brackish or salt water estuary OR xxxxwithin 3 mi of a large field or pasture(>40 acres)OR within 1 mi of a lake greater than 20 acres? YES=1 point NO=0 points Total for page 2 Wetland Rating Form—western Washington 15 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number H 2.3 Near or adjacent to other priority habitats listed by WDFW(see new and complete descriptions of WDFW priority habitats,and the counties in which they can be found,in the PHS report http://wdfwwa.xov/hab/phslist.htn:) Which of the following priority habitats are within 330ft(100m)of the wetland unit?NOTE: the connections do not have to be relatively undisturbed. Aspen Stands: Pure or mixed stands of aspen greater than 0.4 ha(1 acre). x Biodiversity Areas and Corridors:Areas of habitat that are relatively important to various species of native fish and wildlife(full descriptions in WDFW PHS report p. 152). Herbaceous Balds: Variable size patches of grass and forbs on shallow soils over bedrock. Old-growth/Mature forests: (Old-growth west of Cascade crest) Stands of at least 2 tree species,forming a multi-layered canopy with occasional small openings; with at least 20 trees/ha(8 trees/acre)>81 cm(32 in)dbh or>200 years of age. (Mature forests) Stands with average diameters exceeding 53 cm(21 in)dbh; crown cover may be less that 100%; crown cover may be less that 100%; decay,decadence,numbers of snags,and quantity of large downed material is generally less than that found in old-growth; 80-200 years old west of the Cascade crest. Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component is important(full descriptions in WDFW PHS report p. 158). Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. Westside Prairies: Herbaceous,non-forested plant communities that can either take the form of a dry prairie or a wet prairie(full descriptions in WDFW PHS report p. 161). Instream: The combination of physical,biological,and chemical processes and conditions that interact to provide functional life history requirements for instream fish and wildlife resources. Nearshore:Relatively undisturbed nearshore habitats. These include Coastal Nearshore, Open Coast Nearshore,and Puget Sound Nearshore. (full descriptions of habitats and the definition of relatively undisturbed are in WDFW report:pp. 167-169 and glossary in Appendix A). Caves:A naturally occurring cavity,recess,void,or system of interconnected passages under the earth in soils,rock,ice,or other geological formations and is large enough to contain a human. Cliffs: Greater than 7.6 m(25 ft)high and occurring below 5000 ft. Talus: Homogenous areas of rock rubble ranging in average size 0.15 -2.0 m(0.5-6.5 ft), composed of basalt,andesite,and/or sedimentary rock,including riprap slides and mine tailings.May be associated with cliffs. Snags and Logs: Trees are considered snags if they are dead or dying and exhibit sufficient decay characteristics to enable cavity excavation/use by wildlife.Priority snags have a diameter at breast height of>51 cm(20 in)in western Washington and are>2 m(6.5 ft)in height. Priority logs are>30 cm(12 in)in diameter at the largest end,and>6 m(20 ft) long. If wetland has 3 or more priority habitats=4 points If wetland has 2 priority habitats=3 points If wetland has 1 priority habitat=1 point No habitats=0 points Note:All vegetated wetlands are by definition a priority habitat but are not included in this list. Nearby wetlands are addressed in question H 2.4) Wetland Rating Form—western Washington 16 August 2004 version 2 Updated with new WDFW definitions Oct.2008 t r Wetland name or number H 2.4 Wetland Landscape (choose the one description of the landscape around the wetland that best fits)(seep. 84) There are at least 3 other wetlands within''/2 mile,and the connections between them are relatively undisturbed(light grazing between wetlands OK,as is lake shore with some boating,but connections should NOT be bisected by paved roads,fill,fields,or other development. points=5 The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake-fringe wetlands within'h mile points=5 There are at least 3 other wetlands within'/2 mile,BUT the connections between them are disturbed pc its=3 3 The wetland is Lake-fringe on a lake with disturbance and there are 3 other lake-fringe wetland within'/2 mile points=3 There is at least 1 wetland within %2 mile. points=2 There are no wetlands within '/2 mile. points=0 H 2. TOTAL Score- opportunity for providing habitat I 6 Add the scores from H2.1,H2.2, H2.3, H2.4 I TOTAL for H 1 from page 14 s Total Score for Habitat Functions —add the points for H 1,H 2 and record the result on 15 P. 1 Wetland Rating Form—western Washington 17 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS Please determine if the wetland meets the attributes described below and circle the appropriate answers and Category. Wetland Type Category Check off any criteria that apply to the wetland. Circle the Category when the appropriate criteria are met. SC 1.0 Estuarine wetlands (seep. 86) Does the wetland unit 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 NO SC 1.1 Is the wetland unit within a National Wildlife Refuge,National Park, National Estuary Reserve,Natural Area Preserve, State Park or Educational, Cat. I 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 acre in size and meets at least two of the following three conditions? YES =Category I NO=Category II Cat. I —The wetland is relatively undisturbed(has no diking, ditching, filling, Cat. II cultivation,grazing,and has less than 10%cover of non-native plant species. If the non-native Spartina spp. are the only species that cover more than 10%of the wetland, then the wetland should be given a dual Dual rating(I/II). The area of Spartina would be rated a Category II while the rating relatively undisturbed upper marsh with native species would be a Category I. Do not,however, exclude the area of Spartina in UII determining the size threshold of 1 acre. —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 2 of the following features: tidal channels, depressions with open water, or contiguous freshwater wetlands. Wetland Rating Form—western Washington 18 August 2004 version 2 Updated with new WDFW definitions Oct.2008 t • Wetland name or number SC 2.0 Natural Heritage Wetlands (seep. 87) Natural Heritage wetlands have been identified by the Washington Natural Heritage Cat. 1 Program/DNR as either high quality undisturbed wetlands or wetlands that support state Threatened,Endangered, or Sensitive plant species. SC 2.1 Is the wetland unit being rated in a Section/Township/Range that contains a Natural Heritage wetland? (this question is used to screen out most sites before you need to contact WNHP/DNR) S/T/R information from Appendix D_ or accessed from WNHP/DNR web site YES —contact WNHP/DNR(see p. 79)and go to SC 2.2 NO SC 2.2 Has DNR identified the wetland as a high quality undisturbed wetland or as or as a site with state threatened or endangered plant species? YES =Category I NO not a Heritage Wetland SC 3.0 Bogs (seep. 87) — Does the wetland unit(or any part of the unit)meet both the criteria for soils and vegetation in bogs? Use the key below to identify if the wetland is a bog. If you answer yes you will still need to rate the wetland based on its functions. 1. Does the unit have organic soil horizons (i.e. layers of organic soil), either peats or mucks,that compose 16 inches or more of the first 32 inches of the soil profile? (See Appendix B for a field key to identify organic soils)?Yes - gotoQ. 3 No - go toQ. 2 2. Does the unit have organic soils, either peats or mucks that are less than 16 inches deep over bedrock, or an impermeable hardpan such as clay or volcanic ash, or that are floating on a lake or pond? Yes - go to Q. 3 No-Is not a bog for purpose of rating 3. Does the unit have more than 70%cover of mosses at ground level,AND other plants, if present, consist of the"bog"species listed in Table 3 as a significant component of the vegetation(more than 30%of the total shrub and herbaceous cover consists of species in Table 3)? Yes—Is a bog for purpose of rating No - go to Q.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"deep. If the pH is less than 5.0 and the "bog"plant species in Table 3 are present, the wetland is a bog. 1. Is the unit forested(>30%cover)with sitka spruce, subalpine fir,western red cedar,western hemlock, lodgepole pine,quaking aspen,Englemann's spruce, or western white pine, WITH any of the species (or combination of species) on the bog species plant list in Table 3 as a significant component of the ground cover(> 30%coverage of the total shrub/herbaceous cover)? 2. YES= Category I No Is not a bogfor purposeof rating Cat. 1 Wetland Rating Form—western Washington 19 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Wetland name or number SC 4.0 Forested Wetlands (seep. 90) Does the wetland unit have at least 1 acre of forest that meet one of these criteria for the Department of Fish and Wildlife's forests as priority habitats? If you answer yes you will still need to rate the wetland based on its functions. — Old-growth forests: (west of Cascade crest) Stands of at least two tree species, forming a multi-layered canopy with occasional small openings; with at least 8 trees/acre(20 trees/hectare)that are at least 200 years of age OR have a diameter at breast height(dbh) of 32 inches(81 cm)or more. NOTE: The criterion for dbh is based on measurements for upland forests. Two-hundred year old trees in wetlands will often have a smaller dbh because their growth rates are often slower. The DFW criterion is and"OR" so old-growth forests do not necessarily have to have trees of this diameter. — Mature forests: (west of the Cascade Crest) Stands where the largest trees are 80—200 years old OR have average diameters (dbh) exceeding 21 inches (53cm); crown cover may be less that 100%; decay, decadence,numbers of snags, and quantity of large downed material is generally less than that found in old-growth. YES= Category I NO not a forested wetland with special characteristics Cat.I SC 5.0 Wetlands in Coastal Lagoons (seep. 91) Does the wetland meet all of the following criteria of a wetland in a coastal lagoon? — The wetland lies in a depression adjacent to marine waters that is wholly or partially separated from marine waters by sandbanks,gravel banks, shingle, or, less frequently,rocks — The lagoon in which the wetland is located contains surface water that is saline or brackish(>0.5 ppt) during most of the year in at least a portion of the lagoon (needs to be measured near the bottom) YES =Go to SC 5.1 NO not a wetland in a coastal lagoon SC 5.1 Does the wetland meets all of the following three conditions? —The wetland is relatively undisturbed(has no diking, ditching, filling, cultivation,grazing), and has less than 20%cover of invasive plant species(see list of invasive species on p. 74). — 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. Cat. I — The wetland is larger than 1/10 acre (4350 square feet) YES=Category I NO=Category II Cat. II Wetland Rating Form—western Washington 20 August 2004 version 2 Updated with new WDFW definitions Oct.2008 1 Wetland name or number SC 6.0 Interdunal Wetlands (seep. 93) Is the wetland unit west of the 1889 line (also called the Western Boundary of Upland Ownership or WBUO)? YES - go to SC 6.1 NO_not an interdunal wetland for rating If you answer yes you will still need to rate the wetland based on its functions. In practical terms that means the following geographic areas: • Long Beach Peninsula-lands west of SR 103 • Grayland-Westport- lands west of SR 105 • Ocean Shores-Copalis- lands west of SR 115 and SR 109 SC 6.1 Is the wetland one acre or larger, or is it in a mosaic of wetlands that is once acre or larger? YES =Category II NO—go to SC 6.2 SC 6.2 Is the unit between 0.1 and 1 acre, or is it in a mosaic of wetlands that is Cat. II between 0.1 and 1 acre? YES=Category III Cat. III Category of wetland based on Special Characteristics Choose the "highest"rating ff wetland falls into several categories, and record on P. I. If you answered NO for all types enter"Not Applicable"on p.1 Wetland Rating Form—western Washington 21 August 2004 version 2 Updated with new WDFW definitions Oct.2008 Z u-.... Y M2, p czwr ! u .. > it d'n voLL a Np oocp Nd Ywcq 8 ua 1 -Q oa _ m xN,O NaONH� o ' 2 YmcANUZ& ^ =U h y cMa # om_ a o 3w �'- 'H ea UUp0tl ayO Ftc rn w NZ , II m __... .._-._— •. umorroi 9 11 I el x� 9 Q J • • }j CC i LL 7,5 _..... Toe F Strean* AC eSS m SPdng -.. �a S� v �y (Y 9 8 m v- 96 o ob d. / ''' (. • ' 's! / o • • o / o • F • / w t b^ O m W W U it ___,I / \7,\ l ' h ,1 r w oO> JO qoc O8, - r mm dQ oO A -, zw yo >tn= � o v> O W O U O m , V C Q >mm 7 m la V- O H N V o 7 n V 2 - O c z it ¢ZZ m m x U n H u H , . O O :y T. '.. ae n , y Ry , r i 1� T � �s t 1 3e a¢ c c r i c„ c w i m s �i - c S a _ a « u in m' X W u r