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Home My WebLink AboutWetland Delineation 801201006 ~l r-I . I ~ J J ~ 1 : 1 '1 1 Prepared for. Raymond & Patti Snow PO Box 586 Chimacum, WA 98325 Snow Wetland Delineation Report I I J I i April 5, 2007 I ] I J Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaeIB.Dawson@gmail.com I@[E [: ~ n W [E I~m "n.1 I U1 I U lit OCT ~ 1_ m I IU L COUNTY ~~i :'ilTY DEVELOPMENT Snow Delineation April 5, 2007 p. 1 of 37 Table. of Contents Introduction...................,.......................................,................... 3 Background.........,..................................................................... .3 Location.................,.........................................................,..,....................3. , Sources.....,.,...,.,...............,.............................,...,....................................3 .. Mefuodology......,...............,..................................................... ... 5 Findings...............................,..........,....,........,............................ 5 General Wetland Conditions....................................................................,. 5. Streams and Habitat...........,.,...,....,.,..............,........................................ 6. Hydrology............,..,.........,....,....,..,..................,.......,.........,., .........,........ .6.. Soils...., .............................................,..............,...................,. ............,.."..6... Vegetation............ ..... ......'..... ,... ... .... .;.............. .......,......" ,.. ..... .... ..... ........6,. Ratings...............................................,....,................,.,......,........ 9 Hydrogeomorphic Class..,...,..,..,...........,.,.............,......................,.............9- Functional Rating. ..,. .......,.. ..,.................,................,.....,.,.. ....,...........,.,...9. Buffers............... ....... ....... ..... .., ,.........,............ ........... ,.,.,......,... ...,...,.. .,.10 Summary-......,..........................,...................................,........... 10 Figure 1. USGS Topo.................................................... ...... ...... 11 Figure 2. Aerial Photo and Wetland Unit................................... 12 Figure 3, Wetland Boundary- Map............................................., 13 Figure 4. Jefferson County Sensitive Areas Map........................ 13 Figure 5. NRCS Soil Survey Map............................................... 14 Figure 6. National Wetlands Inventory Map............................... 15 Figure 7. DNR Streams Map............................... ...................... 16 Figure 8. DOE Coastal Atlas..................................................... 16 Appendix 1. Photos.......................... .................... ..................... 17 Appendix 2. References......,...................................,................ ..19 Appendix 3. Soils Descriptions...............,....,......... ,................. ..20 Appendix 4. Data Sheets..........,.,.............,......,...................... ...21 _---:-:::-~:;; r"'~... \ ..." .:~;;-~ n ~> if ~t... l """.~ \ \f[)\ r If. \G L';. U .~ i.S \ \ \ \.\ \. \ u \\\ · H \. r., \,' '. \ 1 200:7 I. L...! n II \, I OCT - II' ~ \ \1~ ;',\ ~\ '\ \,1 ... \ . _' (W.NT<, D ,- , ... ."" "tV, . 0\ t,,~ 1"', '_!2~ ~.... ..--- Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Snow Delineation April 5, 2007 p.3of37 Introduction Purpose At the request of Raymond and Patti Snow> a wetland delineation and rating was performed at their property in Quilcene> Jefferson County, Washington on March 31> 2007. The Snows are seeking a building permit on the parcel for the construction of a single-family residence. Scope The wetlands in question are extensive and extend off of the property boundaries. Delineation was limited to the parcel owned by the Snows. Observation of the remainder of the wetland was done via public road access and aerial photography. Site/Project Description Currently, a mobile home is located on the northwest comer of the property. The mobile home will be removed when construction is begun, Permit application and land clearing is anticipated for 2007. The Snows are also establishing a conservation easement to protect a portion of Tarboo Creek on their property in conjunction with the Northwest Watershed Institute and the Jefferson Land Trust. Background Location . 8087 Center Road> Quilcene WA 98376 . Parcel number: 801201006 . Sections 20 & 21 jTownship 28N jRange 1 W . Parcel Size: 7.35 acres . Access: shared private drive off of Center Road Sources . USGS Center Quad topographical map http://www.topozone.com . Aerial photos, Google Earth. jMap> accessed online 2007 . Jefferson County Critical Areas Map, accessed online 2007 http://www.co.jefferson.wa.us/idms/ma.pserver.shtml . NRCS Web Soil Survey, accessed online 2007 http://websoilsurvey.nrcs.usda.gov . USFWS National Wetland Inventory (NWI), accessed online 2007 http://wetlandsfws.er. usgs.gov Iwtlnds Ilaunch.html . WA DNR Forest Resource Map, accessed online 2007 http://www3.wadnr.gov/dnra.pp5/website/{pars/viewer.htm . WA DOE Coastal Atlas, accessed online 2007 http:// apps.ecy.wa.gov I web site I coastal atlas . WA NHP TRS List of Sections that Contain Natural Heritage Features Associa.ted with Wetlands, August 11, 2006 http://www.dnr.wa.gov I nhp I refdesk I datasearch I index.html Complete references are listed in Appendix 2. Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Snow Delineation April 5, 2007 p. 4 of 37 Topography The subject property is located along Tarboo Creek, approximately 3.3 miles north of Tarboo Bay. Access is off of Center Road, about 1.2 miles south of highway 104 and 0.75 miles south of Dabob Road. The parcel is located on terraces and bottomlands of Tar boo Valley. Elevation is between 140 and 200 feet above sea level (Figure 1). The topography is flat to moderately sloped, with slopes between 10 and 20 percent between an upland terrace at the west end of the property and the valley bottom. Aerial Photos Aerial photos reveal a mix of coniferous and decidous forest, pasture and shrub land (Figures 2 and 3). Vegetation changes at the wetland boundary are evident. The current residence is visible on 2005 and more recent aerial photos. Sensitive Areas Map The Sensitive Areas Map of Jefferson County shows the eastem two-thirds of the parcel as wetland. This area roughly corresponds to the mapped hydric soils (Figure 4), Jefferson County Soil Survey The soil survey of Jefferson County indicates the presence of 5 soil types: 1. AmC Alderwood gravelly loam, 0 to 15 percent slopes 2. AmD Alderwood gravelly loam, 15 to 30 percent slopes 3. Sh Semiahmoo muck, moderately shallow variant 4. Sm Semiahmoo muck, shallow variant 5. StB Swantown gravelly sandy loam, 0 to 8 percent slopes Semiahmoo muck is a listed hydric soil. Swantown gravelly sandy loam is a somewhat poorly drained soil that may exhibit a seasonally high water table. Alderwood gravelly loam is an upland soil. The eastem two-thirds of the property are mapped as hydric (Figure 5). See Appendix 3 for soil descriptions. National Wetland Inventory The National Wetland Inventory map shows the onsite wetland to be a complex of emergent, shrub/scrub, and forested wetlands and ponds along Tarboo Creek and on adjacent floodplains (Figure 6). The size of the mapped wetland complex is approximately 59 acres. In addition, approximately 19.6 acres of emergent, shrub/scrub and forested wetlands are mapped within one-half mile to the north. Seven small ponds and emergent wetlands are mapped within one-half mile to the south. Hundreds of acres of wetlands exist further downstream. Watershed The section of Tar boo Creek which passes through the subject property is mapped as a Type F fish-bearing stream on the DNR Resource map (Figure 7). It is also listed as a Category 5 water on the DOE Coastal Atlas, due to high temperatures (Figure 8). Offsite to the southwest, a Type N non-fish- Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Snow Delineation April 5,2007 p. 50f 37 bearing stream is shown on the DNR map. Other tributaries to Tarboo Creek are shown nearby but not onsite. Natural Heritage sites The Natural Heritage Program list of Sections that Contain Natural Heritage Features Associated with Wetlands does not list Section 20 or 21 of Township 28 Range 1 W as including natural heritage features. Methodology Wetland delineation This wetland delineation used standard procedures outlined in the Washington State Wetlands Identification and Delineation Manual and the US Army Corps of Engineers Wetland Delineation Manual. Data points were established during fieldwork and marked with flagging, Blue flagging denotes wetland data points and orange flagging denotes upland data points. Delineation was established by data taken at data points and additional observation of vegetation, soils and hydrology throughout the site. Wetland boundaries were flagged with pink flagging printed "Wetland Boundary" and numbered and labeled. Ratings were done using the Revised Wetland Rating Systemfor Western Washington, 2004. Jurisdiction Wetlands are subject to regulation through federal, state and local legislation. The subject property is under Jefferson County jurisdiction and applicable code includes Title 18 of the Unified Development Code (UDC), Chapter 18.15 Land Use Districts, Article VI-I Wetlands. Findings General Wetland Conditions The subject wetland is largely composed of old pasture in various stages of regeneration into forest (Figure 2). The portion of the wetland on the Snow property is primarily a floodplain wetland with small depressions throughout an<;l slope wetlands on the western edge. The Snow property has a residence (mobile home) at the Northwestern comer of the parcel. The rest of the property is undeveloped and undisturbed. Approximately two-thirds of the parcel is forest. The remaining third is old pasture which has been replanted in native trees and shrubs as part of a restoration effort. Areas of shrub vegetation surround the old pasture. The majority.. of the wetland lies on other private property. Approximately three-quarters of the wetland is forested. Another quarter is pasture, some of which is grazed or mowed. Shrub dominated areas are scattered along the edges of the pastures. Data Point 1 (DP 1) was located on the western edge of the floodplain, Data Point 2 (DP 2) was situated approximately 30 feet upslope from this floodplain edge near the only slope seep that was found. Data Point 3(DP 3} was approximately 10 feet farther upslope (Figure 3 and Appendix 1). p:i{~l~~~ r~\~ O~T~l~-:i~ M;cb"'A nAwoon@gmall com \ WOE" !I1~~l~rrO?!"'H I Snow Delineation April 5, 2007 p. 6 of 37 Streams and Habitat Tarboo Creek runs north to south through the center of the wetland (Figure 7). Tarboo Creek is a Type F Fish-Bearing stream. At least two Type F tributaries and one Type N Non-Fish-Bearing stream join Tarboo Creek within the wetland. Only Tarboo Creek runs through the Snow property, approximately 150 feet from the eastern property boundmy. A pileated woodpecker was heard in the area, but no priority species or their sign were observed onsite. Hydrology Surface water was present at a small seep near the base of the slope leading down to the valley bottom on the Snow property. The floodplain had numerous small depressions filled with water with depths ranging from 1 inch to 18 inches. Soils in the floodplain was saturated to within a few inches of the surface. Tarboo Creek is approximately three to five feet wide and six to twelve inches deep where it crosses the Snow property. <:;. i~. At DP 1 located in the floodplain (Figure 3), water was present 2 inches below the surface in the test pit. Wetland hydrology criteria were also met by observation of drainage pattems, a positive FAC-neutral test of the vegetation, and the confirmation of the mapped hydric soil Semiahmoo muck (See Appendix 4 for complete data sheets). DP 2 had a small surface seep 6 feet from the pit, but no water or saturation within the pit. DP 3 had no indicators of hydrology. Soils At DP 1 the soil to 11 inches below surface was a saturated peaty muck, This organic soil was similar in description to Semiahmoo muck, a listed hydric soil. From 11 to 16 inches, a mucky clay was found with low chroma (lOYR 2/1 Munsell reading). At DP2, the upper 8 inches of soil was clay with a MunseUreading of lOYR 3/2. From 8 to 16 inches, a clay loam was present with prominent mottles (10YR 5/6), indicating seasonally hydric conditions, The soil profile did not match the description of Alderwood gravelly loam in the Jefferson County Soil Survey. Soils at DP 3 were better drained and higher chroma, with a loamy texture in the first 13 inches. Below 13 inches, a clay loam of lOYR 3/3 with distinct mottles (10YR 4/3) was present. Since the matrix chroma was greater than 2 this did not meet hydric criteria. However the soil did seem transitional towards hydric. Quick pits farther upslope did not encounter this mottled clay layer. Vegetation The dominant vegetation at DP 1 was 89% hydrophytic, meeting wetland criteria. In addition, the vegetation had a FAC-neutral test ratio of 4: 1, showing that it was strongly hydrophytic. : "'\t'l i\lv' Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail.com Snow Delineation April 5, 2007 p. 7 of 37 At DP 2, the dominant vegetation was slightly over 50% hydrophytic and therefore met wetland criteria. This was judged to be the upper limit of wetland vegetation on the slope, although scattered facultative species such as alder and salmonberry were present in lesser numbers farther upslope. DP 3 had less than 50% hydrophytic vegetation, and so did not meet wetland criteria. List of Plant Species Identified Onsite Wetland Plants ~~f~ommo~name~ ,~--____~cator ~~ Alnus ntbra Red alder FAC Tree Picea sitchensis Sitka spruce FAC Tree Thuja plica.ta Western red cedar FAC Tree Lonicera involucrata Twinberry FAC+ Shrub Rubus spectabilis Salmonberry FAC+ Shrub Salix lucida lasiandra Pacific willow FACW+ Shrub Geum macrophyllum Large-leaved avens FACW- Herb Lysichiton america nus Skunk cabbage OBL Herb Maianthemum dilatatum False lily-of-the-valley FAC Herb Rarw.nculus repens Creeping buttercup FACW Herb Stachys chamissonis cooleyae Cooley's hedgenettle FACW Herb Urtica dioica. Stinging nettle FAC+ Herb Veronica americana American brooklime OBL Herb Agrostis stolonifera Colonial bentgrass FAC Graminid Carex obrw.pta Slough sedge OBL Graminid Juncus ef./Usus Soft rush FACW Graminid Phalaris antndinacea Reed canarygrass FACW Graminid Scirpus microcarpus Small-fruited bullrush OBL Graminid r!r~ ~ ~~ \r U Vi U{ rr'~\l I~~' ;\1 i l, II f\ t \\ OCT - 1 2007 ; WJ \ \~ Y .___J \ COUNTY OEf', illY OeVELOPMENT L.L__. Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Snow Delineation April 5, 2007 p. 8 of 37 ~-~~~ ~~~~~f~!!i~y~a!?~ :~.~,:>',u.' '~.,'~, '~ I. ~o~on,~aI117, : ",;' 0 '. c>::. lln~icator I: ~~r~,'<., )~~.', Athyrium filix-femina Lady fern FAC Fern Equisetum arvense Common horsetail FAC Horsetail Equisetum telmateia Giant horsetail FACW Horsetail Upland Plants ~_'Indicat~r',~ l:'i~J''': I"{,,,- ~ "'~d~<' ,l~l._ ..~"" ~'. _ ~,_ -"I,'" ~ l _ ~ _;" _ _ _ ~ Ie "" _ ~" t" _~ ~ '"";- -[ _ \,.~. 'V~ '< Abies grandis Grand fir FACU Tree Acer macrophyllum Big-leaf maple FACU Tree Prunus emarginata Bitter cherry FACU Tree Pseudotsuga menziesii Douglas-fir FACU Tree Acer circinatum Vine maple FAC- Shrub . Rex aquifolium Holly NI Shrub Malwma nervosa Oregon-grape FACU Shrub Malus sp. Apple NI Shrub . Oemleria cerasiformis Osoberry FACU Shrub Rubus armeniacu.s Himalayan blackberry FACU Shrub Rubus laciniatus Evergreen blackberry FACU+ Shrub Rubus ursinus Trailing blackberry FACU Shrub Sambucus racemosa Red elderberry FACU Shrub Vaccinium parvifolium Red huckleberry NI Shrub TriUium ovatum Pacific trillium FACU Herb Dactylis glomerata Orchardgrass FACU Graminid Phleum pratense Timothy FAC- Graminid Polystichum munitum Sword fern FACU Fern Pteridium aquilinum Bracken FACU Fern r - 1:;C; Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Snow Delineation April 5, 2007 p. 9 of 37 OBL Obligate Wetland FACW Facultative Wetland FAC Facultative FACU Facultative Upland UPL Obligate Upland NI No Indicator + or- Occur almost always in wetlands. Usually occur in wetlands. Equally likely to occur in wetlands or non wetlands. Usually occur in non wetlands. Occur almost always in non wetlands. denotes more or less likely to occur in wetlands Ratings Hydrogeomorphic Class Three hydrogeomorphic classes are present in the subject wetland. Slope wetlands on the valley edges grade into depressional and riverine wetlands on the valley floor. As per the Revised Rating System guidelines, the wetland was rated as Depressional since more than two classes are present. The entire 59 acre wetland was rated as one unit (Figure 2). Functional Rating Based on functions provided by the wetland, the subject wetland scored 16 points for Water Quality, 8 points for Hydrological Functions and 23 points for Habitat Functions for a total of 47 points on the state rating form, making it a Category III wetland (see Appendix 4 for complete form). All Category III wetlands 2,500 square feet or larger are regulated in Jefferson County. Water quality potential was provided by the presence of organic soil and greater than 50% persistent, ungrared vegetation. Water quality opportunity was provided by streams discharging into the wetland that drain farmed fields, roads and clear-cut logging. Hydrologic potential was provided by numerous small depressions that trap water and the ratio of wetland size to watershed size. Hydrologic opportunity is provided by the fact that the downstream portion of Tarboo Creek has several road crossings and buildings in the floodplain, The Tarboo Valley has an associated 100-year floodplain (Figure 8). Habitat potential was provided by the variety of vegetation classes and hydroperiods, and rich species diversity. Restoration has added a number of standing snags and even more species diversity, which was not counted in the plant list. Somewhat impacted buffers and corridors led to a moderate score for habitat opportunity. Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com I [-;:~-----.-ii;---'--~--r~!~~ Ii! \\ ~ L) L:i li Ii! :! il,.---" ~t! 1111 , { ~,~/ } !, .:- t f I 1. Ilr"":\\ i;( jli : : ~ U \ OCT - 1 2007 J l:::J I \ U COUNTY_... \ Snow Delineation April 5, 2007 p. 10 of 37 Buffers According to UDC 18,15.340 Protection Standards, Table 3-4, the standard buffer width for a delineated Category III wetland is 75 feet from the wetland boundary. The approximate location of the buffer is shown on Figure 3. No clearing, pruning of native vegetation or grading is allowed in wetland buffers and they are to remain in a natural state. The buffer was flagged with pink flagging and labeled Wetland Buffer. Careful land clearing is required in order to not accidentally impact the buffer, especially since tree fall will likely occur downslope in that direction when logging. Tarboo Cree).{ will have an associated stream buffer of 150 feet, but this is superseded on the Snow property by the wetland, which provides a wider buffer. Summary A Category III wetland was delineated on the Snow property in Quilcene, Washington, Wetland boundaries and buffers were marked in the field. The proposed building site lies outside of the buffer, Land clearing activities should be planned carefully as to not impact the buffer. All wetlands are considered potential wetlands until confttmed by the appropriate regulatory agency. All information in this report should be reviewed by the appropriate regulatory agencies prior to approval. If there are further questions or planning requirements for this project please do not hesitate to contact me. )4jb~~~ Michael B. Dawson Wetland Delineator Certification Training, Wetland Training Institute, 2005 Revised Western Washington Rating System Training, DOE, 2006 Michael B. Dawson 1361 51 st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com f -, Snow Delineation April 5, 2007 p. 11 of 37 Figure 1. USGS Tapa . o 0.3 . 0.6 . 0.9 . 1.2 . 1.5 kfll . o . . 0.2 0.4 0.6 0.8 1 flli UTM 10 513242E 5305735N (NAD27) Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaAIB Dawson@gmail com ! r.'r.'~ . L..-~ ~ Wi [E m1 Ii i J' 1\ :~~ r I i !i! \il I U i!i (1\ OCT -1 2007 'W .J ~"i J CuLiNTY . J>:r !: iY Dh/ELOPMENT L-.__ Snovv Delineation April 5. 2007 p. 12 of 37 Figure 2. Aerial Photo and Wetland Unit Michael B. Dawson 1361 51 st Street Port Townsend, WA 98368 360-385-1773 Iv'lichaelB Dawson@gmail com Snow Delineation April 5, 2007 p.13of37 Figure 3. Wetland Boundary Map 1"" = 2()O" Figure 4. Jefferson County Sensitive Areas Map i i! ; F: ~~ . q:' ,/ ;.' 1iC/ IJ: : . f ,: ~ 1,; .. i ,:" : .. I i i " . ! . i '----J) L ''''''00' i .'ixL' . . .. . ; . . " .' .~ . t :: . , . . . . . . . .. . . , :'..:.... .' .. ;0 .....; 0_ . . . . I . ; . ; ! : ..... ... . ~ :." .." I .. ..... : Iff::, r~ (c--lf Wi -IT~ \i=01 \\ U J I~' ~ 1 i \ \ '! I \ If\\. \ OCT - 1 2007 \ BJ II. 1M U, \ \ \ _.~_~ 1\ COUNTY ! .nTY [;(=.VELOPl'.1EI\JTJ ~~: ..' .,..__M...._._..h.._-- ~. ! Snow Delineation April 5, 2007 p. 14 of 37 Figure 5. NRCS Soil Survey Map Snow property Tables · Map Unit Hydric Rating 0 Suinmaiy. bY Map Unit -J.efferson CoUI1ty~,. WashIngton 5011 Survey Area Map Map Unit Name Unit Symbol Arne Alderwood gravelly loam, 0 to 15 percent slopes Alderwood gravelly loam, 15 to 30 percent slopes Semiahmoo muck, moderately shallow variant Semiahmoo muck, shallow variant Swantown gravelly sandy loam, 0 to 8 percent slopes @ Rating Total Acres in AOI Percent of AOI Not Hydric 0.3 3.4 Not HydriC 3.0 39.0 All Hydric 0.8 10,1 All Hydric 3.5 45,4 Not HydriC 0.2 2.2 AmD Sh Sm StB Michael B. Dawson 1361 51 st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Snow Delineation April 5, 2007 Figure 6. National Wetlands Inventory Map Snow wetlands 122-49-50 W 122-49-40 W 122-49-30 W prPE~(~4 I z: Ii . ~7riJJIJ " ~ I ~ f ~."'t"f~_ , ~ ---1----------- -r-~ u-----t:-#~""' I I ! Project area I i I I I i ! --.i---.--l----~ t~~r~:"l ~i,~; I ! I I i I ! I I I I i I j zit ~ --------l------_____._____.__.j__.._.._. ~ I I ! i I i i ! i i I I I I ! 122-49-20 W 122-49-10 W ~ ~ ~ 122-49-30 W 122-49-20 W 122-49-10 W Iii Map center: 470 54' 20. N, 122049' 31: w $- ~~ ~~ro~~~~ ~~~~~~~~~~'m~.}'W,PGWt~~rf~~ ~~eT~~:~~rence only. Data layers that appear on this map mayor may not be z ~ (f) It) ,.:. ~ 122-49-50 W i I 122-49-40 W Michael B. Dawson 1361 51 st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Legend ~ 0, 6 z CONUS_weCscan .0 01 . Out of range , Interstate Major Roads Other Road , Interstate .IV' State highway ;/ US highway Roads " Cities r . USGS Quad Index 24K Lower 48 Wetland Polygons III Estuarine and Marine Deepwater 17'.j Estuarine and Marine Wetland i~;; Freshwater Emergent Wetland .. Freshwater Forested/Shrub Wetland [f] Freshwater Pond . Lake Other . Riverine Lower 48 Available Wetland Data Non-Digital Digital No Data Scan ~ NHD Streams Counties 100K Urban Areas 300K a States 100K o South America o North America Scale: 1 :15,840 !\n ~ lla lr \1 ~ I I r \ \ t 'it I\ii ii~ c!j i w ut I ! \ l Ott. OCT p. 15 of 37 ~ rw LGlrr111 , . 'l 1 2007 \1.0\ t , --~--~ " COUNTY I ~jlTY DEVELOPI',;1ENT~ Snow Delineation April 5, 2007 p.16of37 Figure 7. DNR Streams Map l _l '.\ :~.........r . Legend SM.!>. . Points 1904668 .. . ~'..:rr~ s.'.:r~ .~ ~ -I :>':1"1; e :5,v.5 S"n~~ .r.....! ::-\':Yl~'l:-o"r. . S'J:nl' ~"J ~:.l..n:b"~' ;:>':1 cr: SM.f.t, . Streams "\.. \\\, \ " I I I II " l I I / / " f jt/ S:.ale :;....rc,..~ jt/ .S,lVS S"rJ~'~.';~Je II Category 5 Waler II c.ategory 4C Water Cats90ry 46 \Nater II c.ategory 4A '\lVater Category 2 Water II Category 1 Water Major Roads ~ .~ .1'9.'....:1,- ~ JS '1 g"",,,,, r/ tT..e'~:.:m Streets 0 County Fbod Zone ~ .yy.d....;:r. ~A t03 Ye:.' ~'O'.T.I....."'..I WaleI' Bodies I.H)OK) Figure 8. DOE Coastal Atlas _ Re"A.-."O-,' o G..o:t;..,(!' D \f3''l>~1 o ~O;'. o b.:n:1 ~ W:r~' ~ Streams V','eUands .. .1\:J.J:r.C iSod II t:1'~CJ'':'r. .. ;- a-~~ ~~~ .S1'~:.o'St.::..D !.;,;::,';~ T ~ }\:f:.s:r. ': &,:.1 ~-;!;.~.:::.~~; T 0:1 E '11'.:'" g'~-r. ...l . T (1:1 r (n~.:o:l . r:d:J S'Y'''J.1'S='''.J:J Ba.:kground i ..0' o -g ') i j'r<X'~ '.'/~I ,",:.P::11 t~~~l~ -"l~~ . 'i.;n .N.:r;;,....~p:n ;.........:1 ,~ HiUshade 110m;. Michael B. Dawson 1361 51 st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Snow Delineation ' April 5, 2007 p. 17 of 37 Appendix 1. Photos Tarboo Creek on Snow Property DP1 . , Michael B. Dawson 1361 51 st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com ~q ~ \\~ l'U' t ! f d OCT - 1 2007 \ L .~ ..' COUNTY .:{iTY OEVELOPt..~EN Snow Delineation April 5, 2007 p. 18 of 37 DP 2 & 3 Proposed Building Site Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Snow Delineation April 5, 2007 p. 19 of 37 Appendix 2. References Cowardin, L. M., v, Carter, F. C. Golet, E. T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. US Fish and Wildlife Service (USFWS), Washington, D.C. Jamestown, ND: Northern Prairie Wildlife Research Center hUp: Ilwww.npwrc.usgs.gov/resource/1998/c1asswetlc1asswet.htm Hitchcock, L.C. and A. Cronquist, 1973. Flora of the Pacific Northwest. University of Washington Press. Hruby, T. 2004. Washington State Wetlands Rating Systemfor Western Washington- Revised. Washington State Department of Ecology Publication #04-06-025. Jefferson County, Unified Development Code. Accessed online 2007. http://nt5.scbbs.com/c&i-bin/om isa,pLdll? clientID=336183&infobase=ieffco l.nfo&softpage= PL frame Jefferson County, Critical Areas Map. Accessed online 2007. htl;p: Ilwww.coJefferson.wa.us/idms/mapserver.shtml McMi11a.n., A. 1997. Washington State Wetland Identification and Delineation Manual. Washington State Department of Ecology Publication #96-94. Munsell Soil Color Charts, 2000 rev. GretagMacbeth. New Windsor, New York. Pojar, J. and A. MacKinnon, 1994. Plants of the Pacific Northwest Coast. Lone Pine Publishing. Vancouver, British Columbia. Reed, Jr., P. 1988. National List of Plant Species That Occur in Wetlands, USFWS Biological Report 88 (26.9), http://www.fws,gov/nwi/bha/list88.html Speare Cooke, S., 1997. A Field Guide to the Common Wetland Plants of Western Washington and Northwestern Oregon. Seattle Audubon Society. Seattle, Washington. USDA Natural Resources Conservation Service (NRCS), Web Soil Survey. Accessed online 2007. htl;p: Ilwebsoilsurv~y.nrcs. usda.g.ov USDA Plants Database. Accessed online, 2007. http://plants.usda.gov USFWS, 1993. 1993 Supplement to List of Plant Species That Occur in Wetlands: Northwest (Region 9). Supplement to USFWS Biological Report 88 (26.9). USFWS, National Wetland Inventory. Accessed online 2007. http://wetlandsfws.er.usgs.gov IwtlndsI launch.html Washington Department of Ecology, CoastalAtlas. Accessed online 2007 http://apps,ecy.wa.gov/website/coastal atlas Washington Department of Natural Resources, Forest Resource Map. Accessed online 2007. http://www3.wadnr.gov/dnrapp5/website/fpars/viewer.htm Washington Natural Heritage Program, List of Sections that Contain Natural Heritage Features Associated with Wetlands, August 11, 2006. Accessed online 2007. http://www.dnr.wa.gov InhpIrefdeskI datasearch/index.html Wetland Training Institute, Inc. 1995. Field Guide for Wetland Delineation; 1987 Corps of Engineers Manual, Glenwood, NM. WTI 02-1 {";-'''- f"":"~-;'-"~":'i,..11 (") .', ' ~ B\~~~' ~ll; -----i\\ :';\ OCT - 1 2007 II ,.. , I '~i'~ --'J\ ;Y L';:VtlJJI'MtN_1 Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com rr- ".., r,'" t" r\ \ If" .\" ,I ..::> \! ,Jr \" '! \ :\ ;::'\ \ 1\ \\,: ~ ,f ~; \. 1,\ \\\ \ ie& Y.! \ Snow Delineation April 5, 2007 p. 20 of 37 Appendix 3. Soils Descriptions Map Unit Description (Brief. Generated) Jeft'erson County Area, Washington [Minor map unit components are excluded from this report) Map unit: ArnC - A1delWOOd gravelly loam, 0 to 15 pen:ent slopes Component: AIdeIWOOd (100%) The AIderwcod component makes up 100 percent of the map unit. Slopes are 0 to 15 pen:ent This corirponent is 011 temlces. The parelIt material consists of basal till with a component of voIc8nic ash in the upper part Depth to a root restrictive Ia)tll; densic material, is 20 to 40 inches. The nattJraI drainage class is moderately well drained. Water moll8l1l6llt in the most restrictive layer is low. Available water to a depth of 60 inches Is lie!)' bw. Shtink-swell potential Is loW. 7hJs soil is not flooded. It Is not ponded. A seasonal zone of water saturation is at 30 Inches during January, February, March. Organic matter content in. the surface. hotlzon Is about 6percent Nonirrlgated land capability classification is 4s. This soil does not meet hydtic ctitetia. Map unit: ArnD - A1derwood gravelly loam, 15 to 30 percent slopes Component: A1delWOOd (100%) The AIderwood component makes lip 100 percent of the.map unit. Slopes are 15 to SO percent. This component is 011 terraces. The parent material consists of basal tiH with a component of lIOicanic ash in the upper part Depth to a root restrictive Ia)tll; densic materia/, is 20 to 40 inches. The natural drainage c/a$$ /s moderately well drained Water movement in the most restrictive layer is loW. Available water to a depth of 60 Inches Is 1I\!IIY low. Shtink-swel1 potBntIaJ is low. This soil is not flooded. It Is not ponded. A seasonal zone of water saturation is at 30 inches durIng.lanuaty. Febtuaty. Match. Organic matter content in the surface horizon is about 6 percent Nonirrigated land capability cIassificatioiI is 4e. 7hJs soil does not meet hydt/c ctitetia. Map unit: 8h - Semiahmoo muck, moderately shaIow variant Component: Semlahmoo (100%) The Semiahmoo component makes up 100 percent of the map unit. Slopes are 0 to 1 percent This component is 011 depressions. The parelIt material consists of heIbaceous otg8IIic materfaI. Depth to a root restrictive.layer is gTeater than 60 inches. The natural drainage c/a$$1s WI)' pootIy drained. Water mowment iJ the most restrictive layer Is moderately high. Available water to a depth of 60 inches /s 1IeIY high. Shrin/(-sweH potential is low. 7hJs soil Is not fIoodBd. It Is 1r8quentty ponded. A seasonal zone of water saturation is at 0 inches during January, February, March, April, May. November. December. Organic matter conterIt in the surface horizon Is about 45 percent NOIIirrigated land capability classification is 5w. This soil meets hydric ctitetia. Map unit: 8m - Semiahmoo muck, shaDow variant Component: Semiahmoo (100%) The Semiahmoo oomponent maIces up 100 percent of the map unit. Slopes am 0 to 1 petCeIIt. This component is 011 depIessions. The parent materialconsists of hetbacsous organic materfaI. Depth to a root restrictive layer /s gTeater than 60 inches. The nattJraI r/raInage c/a$$ is 1IeIY pootIy drained. Water movement In the most restrictive layer is mOderately high. Available water to a depth of 60 Inches /s 1IeIY high. Shrink-sweH potential Is low. 7hJs soil is not fIoodBd.lt is frequently ponded. A seasonal zone of water saturation Is at 0 inches during January, Februaty, March, April, May. November, DeCember. Organic matter content in the surface horizon is about 45 percent NOIIInigated land capabifity classification is 5w. This soil meets hydric ctitetia. Map unit: 8tB - Swantown gravelly sandy loam, 0 to 8 pen:ent slopes Component: Swantown (100%) The Swantown component makes up 100 percent of the map unit. Slopes are 0 to 8 petCeIIt. This component is on uplands. The parent material consists of tiH. Depth to a root restrictive Ia)tll; densic material, is 20 to 30 Inches. The natural drainage class is somewhat poorly drained. Water movemet1t in the most restrictive layer Is bw. Available water to a depth of 60 inches is 1I\!IIY loW. Shtink-sweH potential is low. This soil is not fIoodBd. It Is not ponded. A seasonal zone of water saturation is at 9 Inches during January, February, March, November, Dacamber. OrganIc matter content in the surface horizon is about 2 percent. Nonirrigated land capability cIassificatioiIls 6w. 7hJs soil does not meet hyrlric criteria. USDA Natural Resources ~ Conservation Service Tabular Data Version: 3 Tabular Data Version Date: 11/2112006 Michael B. Dawson 1361 51st Street Port Townsend, WA 98368 360-385-1773 MichaelS Dawson@gmail com Page 1 ot 1 Routine Wetland Determination DATA FORM 1 (Revised) WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual) Project/Site: Snow property Date: 2007/03/31 Applicant/owner: Raymond & Patti Snow County: Jefferson Investigator(s): Michael Dawson State: WA ., Srr/R: 20128N/1 W Do normal circumstances exist on the site? I8IVes DNo Community ID:Wetland A Is the site significantly disturbed (atypical situation)? DVes 181 No Transect ID: Is the area a potential problem area? DVes 181 No PlotlD: DP 1 Explanation of atypical or problem area: Near flag A3. VEGETATION (For *strata, indicate T = tree; S = shrub; H = herb; V = vine) Dominant Plant Species *Stratum % cover Indicator Dominant Plant Species *Stratum % cover Indicator Alnus rubra T 10 FAC Equisetum arvense H 5 FAC Oemleria cerasiformis S 2 FACU Equisetum telmateia H 5 FACW Scirpus microcarpus H 35 OBL Agrostis sto/onifera H 5 FAC Juncus effusus H 30 FACW Ranunculus repens H 25 FACW Athyrium filix-femina H 10 FAC HYDROPHYTIC VEGETATION INDICATORS: % of dominants OBL, FACW, & FAC: 8/9 89% Check all indicators that apply and explain below: o Visual observation of plant species growing in o Physiological/reproductive adaptations areas of prolonged inundation/saturation 181 Wetland plant database o Morphological adaptations 181 Personal knowledge of regional plant communities o Technical Literature o Other (explain) Hydrophytic vegetation present? 181 Ves ONo Rationale for decisionlRemarks: Greater than 50% of dominants hydrophytic. HYDROLOGY Is it the growing season? 181 Ves ONo Water Marks: DVes 181 No Sediment Deposits: 0 Ves 181 No on Based on: 0 Soil temp (record temp) Drift Lines: Dves 181 No Drainage Patterns: 181 Ves ONo (air temp 460) Flat slope with small depressions 181 Other (explain) dormancy ended and clay layer in soil. Depth of inundation: 0 inches Oxidized Root (live roots) Local Soil Survey: 181 Ves ONo Channels <12 it: o Ves 181 No Depth to free water in pit: 2 inches FAC Neutral: 181 Ves DNo Water-stained Leaves: Dves 181 No Depth to saturated soil: to surface 4:1 Check all that apply & explain below: Other (explain): o Stream, lake or gage data --~ "-;:.--;;-._~_.._--:~~:~,' 181 Aerial photographs rr--- rc; (t' '; i \ j F\' Ie \\::7 lJ \ " o Other \ \ \ ,f I r ~_~~~-,:-.___~"~;.___n_-\ \ i " ~.,. , : j \ . :: r<"\ . : ! 181 0 \ :'" OCT - 1 2001 ."~ Wetland hydrology present? Yes No i \ \ \ : \l- Rationale for decision/remarks: !.;J ~~ i High water table, drainage patterns, positive FAC-neutral rnd sbil survey. ,_ -----1 \"VUri I - I : dl'r \.-..- i \ \ ___..:TY_ ')tVCLUPi,itNU SOILS Map Unit Name (Series and Phase): Sm Semiahmoo Drainage Class: Very poorly drained muck, shallow variant Field observations confirm mapped type? ~Ves ONo Taxonomy (subgroup): Typic Medisaprists Profile Description Depth _ Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile (inches) Horizon (Munsell moist) (Munsellrnoist) size and contrast structure, etc. (match descriotion) 0-11" 10YR 2/1 None Peaty muck 11-16" 10YR 2/1 None Mucky clay Hydric Soil Indicators: (check all that apply) ~ Histosol o Matrix chroma 0 2 with mottles o Histic Epipedon o Mg or Fe Concretions o Sulfidic Odor o High Organic Content in Surface Layer of Sandy Soils ~ Aquic Moisture Regime o Organic Streaking in Sandy Soils o Reducing Conditions ~ Listed on National/Local Hydric Soils List ~ Gleyed or Low-Chroma (=1) matrix o Other (explain in remarks) Hydric soils present? ~Yes ONo Rationale for decision/Remarks: Organic texture, listed hydric soil, low chroma, complete saturation. Wetland Determination Hydrophytic vegetation present? ~Yes ONo Hydric soils present? I8IVes ONo Wetland hydrology present? 181 Yes ONo Is the samDlina Doint within a wetland? 181 Ves ONo Rationale/Remarks: ~~ NOTES: Revised 4/97 WA State Wetland Delineation Manual or 1987 Corps Wetland Delineation Manual) Snow property Date: 2007/03/31 Raymond & Patti Snow County: Jefferson Michael Dawson State: WA Srr/R: 20128N/1W Community ID:Wetland A Transect 10: PlotlD: Near flag A2. Routine Wetland Determination DATA FORM 1 (Revised) Project/Site: Applicant/owner: Investigator( s): .. ! ~Yes DYes DYes ONo ~No ~No Do normal circumstances exist on the site? Is the site significantly disturbed (atypical situation)? Is the area a potential problem area? Exolanation of atypical or problem area: VEGETATION (For *strata, indicate T = tree; S = shrub; H = herb; V = vine) Dominant Plant Soecies *Stratum % cover Indicator Dominant Plant Soecies Alnus robra T 10 FAC Maianthemum dilatatum Rubus spectabilis S 50 FAC+ Oem/eria cerasiformis S 40 FACU Rubus armeniacus S 10 FACU Lonicera invo/ucrata S 2 FAC+ Po/ystichum munitum H 10 FACU HYDROPHYTIC VEGETATION INDICATORS: % of dominants OSL, FACW, & FAC: 4rl 57% Check all indicators that apply and explain below: o Visual observation of plant species growing in areas of prolonged inundation/saturation o Morphological adaptations o Technical Literature DP2 *Stratum H % cover 10 Indicator FAC o Physiological/reproductive adaptations ~ Wetland plant database ~ Personal knowledge of regional plant communities o Other (explain) Hydrophytic vegetation present? ~ Yes 0 No Rationale for decision/Remarks: Greater than 50% of dominants hydrophytic. HYDROLOGY Is it the growing season? ~ Yes 0 No Water Marks: 0 Yes ~ No on Based on: 0 Soil temp (record temp) (air temp 460) ~ Other (explain) dormancy ended Depth of inundation: 0 inches Drift Lines: DYes ~ No Oxidized Root (live roots) Channels <12i1.: 0 Yes ~ No FAC Neutral: 0 Yes ~ No Depth to free water in pit: none Depth to saturated soil: none Sediment Deposits: 0 Yes ~ No Drainage Patterns: 0 Yes ~ No Local Soil Survey: 0 Yes ~ No Water-stained Leaves: DYes ~ No Check all that apply & explain below: Other (explain): A seep with surface water is 6' to the East. A clay o Stream, lake or gage data layer i.n the soil is ~ikely forcing slope flow to surface here as well ~he". __ ~ Aerial photographs there IS ample mOisture. ff-;....-:\ l~; C W;;: II 'w tE ~\ II, \, u::> """.. _ I o Other , : L))r : ; Wetland hydrology present? ~ Yes 0 No ; \ \ \ \ \ OCT - 1 2001 \ d Rationale for decision/remarks: Transitional to upland. Upslope from here no indicators of hy~rol~y were found. t l',rf, COUNTY "rv DfVELOPMEN1 SOILS Map Unit Name (Series and Phase): AmD Alderwood Drainage Class: Moderately well drained gravelly loam, 15 to 30 percent slopes Field observations confirm mapped type? DYes 181 No Taxonomy (subgroup): Vitrandic Durochrepts Profile DescriDtion Depth Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile (inches) Horizon (Munsell moist) (Munsell moist) size and contrast structure, etc. (match descriDtion) 0-8" 10YR 3/2 None clay 8 _16" 10YR 5/2 10YR 5/6 Common, medium, Clay loam w/charcoal prominent bits Hydric Soil Indicators: (check all that apply) o Histosol 181 Matrix chroma 0 2 with mottles o Histic Epipedon o Mg or Fe Concretions o Sulfidic Odor o High Organic Content in Surface Layer of Sandy Soils o Aquic Moisture Regime o Organic Streaking in Sandy Soils o Reducing Conditions o Listed on National/Local Hydric Soils List o Gleyed or Low-Chroma (=1) matrix o Other (explain in remarks) Hydric soils present? 181 Yes ONo Rationale for decision/Remarks: Low chroma with mottles. Wetland Determination Hydrophytic vegetation present? 181 Yes ONo Hydric soils present? 181 Yes ONo Wetland hydrology present? 181 Yes ONo Is the samplinQ point within a wetland? 181 Yes ONo . RationalelRemarks: Transitional to uoland. NOTES: Revised 4/97 I I I I .1 Routine Wetland Determination DATA FORM 1 (Revised) WA State Wetland Delineation Manual or 1987 COrDS Wetland Delineation Manual) Project/Site: Snow property Date: 2007/03/31 Applicant/owner: Raymond & Patti Snow County: Jefferson Investigator(s): Michael Dawson State: WA srr/R: 20128N/1 W Do normal circumstances exist on the site? 181 Ves DNo Community ID:Wetland A Is the site significantly disturbed (atypical situation)? DVes 181 No Transect ID: Is the area a potential problem area? DVes 181 No PlotlD: DP3 Explanation of atypical or problem area: Near flag A 1. VEGETATION (For *strata, indicate T = tree; S = shrub; H = herb; V = vine) Dominant Plant Species *Stratum % cover Indicator Dominant Plant Species *Stratum % cover Indicator Alnus rubra T 70 FAC Po/ystichum munitum H 10 FACU Abies grandis T 25 FACU- Oem/eria cerasiformis S 75 FACU Rubus spectabilis S 10 FAC+ /lex aquifolium S 5 NI Rubus armeniacus S 5 FACU HYDROPHYTIC VEGETATION INDICATORS: % of dominants OBl, FACW, & FAC: 2f7 29% Check all indicators that apply and explain below: o Visual observation of plant species growing in o Physiological/reproductive adaptations areas of prolonged inundation/saturation 181 Wetland plant database o Morphological adaptations 181 Personal knowledge of regional plant communities o Technical Literature D Other (explain) Hydrophytic vegetation present? DVes 181 No Rationale for decisionlRemarks: less than 50% of dominants hydrophytic. HVDROLOGV Is it the growing season? 181 Ves DNo Water Marks: DVes 181 No Sediment Deposits: 0 Ves 181 No on Based on: 0 Soil temp (record temp) Drift Lines: DVes 181 No Drainage Patterns: DVes 181 No (air temp 460) 181 Other (explain) dormancy ended Depth of inundation: 0 inches Oxidized Root (live roots) local Soil Survey: Dves 181 No Channels <12i1.: 0 Ves 181 No Depth to free water in pit: none FAC Neutral: DVes 181 No Water-stained leaves: DVes 181 No Depth to saturated soil: none '.:' Check all that apply & explain below: Other (explain): Close in elevation to DP 2, but the soil texture and o Stream, lake or gage data drainage much different. E) re fF:l if~ n \YJ r;::> [ ,In !""!~ U" ~ 181 Aerial photographs ~il ~ .'.., 'iur-- II ., o Other \: r~"\ 1_ :; ~ ll" ^J'\'T 1 Mn"1 Wetland hydrology present? o Ves 181 No ,"',; Vvl I U;lVI ..... Rationale for decision/remarks: No indicators present. , j i "t.> i1~TY .; -''>i ;"1C ;Cl f~11Ei d~' l_._ u".' .,{ .._C.\LLO..:..- --".~-_..,-- SOILS Map Unit Name (Series and Phase): AmD Alderwood Drainage Class: Moderately well drained gravelly loam, 15 to 30 percent slopes Field observations confirm mapped type? DYes 181 No Taxonomy (subgroup): Vitrandic Durochrepts Profile Description Depth Matrix color Mottle colors Mottle abundance Texture, concretions, Drawing of soil profile (inches) Horizon (Munsell moist) (Munsell moist) size and contrast structure, etc. (match descriDtion) 0-1" 10YR 3/2 None Loam w/duff 1 - 13" 10YR 3/3 none Loam 13-16" 10YR 4/3 10YR 4/6 Common, medium, Clay loam distinct Hydric Soil Indicators: (check all that apply) D Histosol D Matrix chroma 0 2 with mottles D Histic Epipedon D Mg or Fe Concretions D Sulfidic Odor D High Organic Content in Surface Layer of Sandy Soils D Aquic Moisture Regime D Organic Streaking in Sandy Soils D Reducing Conditions D Listed on National/Local Hydric Soils List D Gleyed or Low-Chroma (=1) matrix D Other (explain in remarks) Hydric soils present? DYes 181 No Rationale for decisionlRemarks: Even though mottles are present, chroma is higher. Wetland Determination Hydrophytic vegetation present? Dyes 181 No Hydric soils present? Dyes 181 No Wetland hydrology present? DYes 181 No Is the samolina Doint within a wetland? Dyes 181 No RationalelRemarks: Near wetland boundary and somewhat transitional but positive wetland indicators are lackina. NOTES: Revised 4/97 Wetland name or number A WETLAND RATING FORM - WESTERN W ASIDNGTON Version 2 - Updated July 2006 to increase accuracy and reproducibility among users Name of wetland (if known): 1"Altf,OO VM-L.r;y / 5 r-JOW Date of site visit: 2.007 /D 3/~ I Rated by tJ\ \c...~AtL- 'D Aw ~O t-J Trained by Ecology? Yes ~No _ Date of training 2-DO'/o 2- ~~ / SEC: 2-( TWNSHP:z..gtJ RNGE:I W Is Srr/R in Appendix D? Yes_ No-Y- Map of wetland unit: Figure ~ Estimated size 5" Gf a...c.-r-e ~ SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I n m/ IV Category I = Score >=70 Category II = Score 51-69 Category III = Score 30-50 CategOry IV = Score < 30 Score for Water Quality Functions Score for Hydrologic Functions Score for Habitat Functions TOTAL score for Functions (~ ~ '2-3 4-7 Category based on SPECIAL CHARACTERISTICS of wetland 1_ n_ Does not Apply V Final Category (choose the "highest" category from above) I ill I Summary of basic information about the wetland unit Wetland Rating Form - western Washington version 2 Estuarine Natural Herita e Wetland Bo Mature Forest Old Growth Forest Coastal La oon Interdunal None of the above I NT Wetland name or number .A 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. . ; .....iJi3t'lclitlQlJ.f(JJbe ....(Jt~~ii~.~..~cgmlQe...t'letJ...ro...if~c3le. ~i :'i<~ ;' SPl. Has the wetland unit been documented as a habitat for any Federally listed Threatened or Endangered animal or plant species (I'/E species)? For the purposes of this rating system, "documented" means the wetland is on the a ro riate 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 appropriate state database. Note: Wetlands with State listed plant species are cate orized as Cate 0 I Natural Herita e Wetlands see . 19 of data form . SP3. Does the wetland unit contain individuals of Priority species listed by the WDFW for the state? v J v 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. v To complete the next part of the data sheet you will need to determine the Hvdrogeomorphic 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 version 2 2 August 2004 Wetland name or number A Classification of Wetland Units in Western Washington 1. Are the water levels in the entire unit usually controlled by tides (Le. except during floods)? @ 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 formsfor Riverine wetlands. Ifit 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 ~ 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)? ~ go to 4 YES - The wetland class is Lake-fringe (Lacustrine Fringe) 4. Does the entire wetland unit meet all of the following criteria? V The wetland is on a slope (slope can be very gradual), V 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 <3ft diameter and less than 1 foot deep). NO - go to 5 YES - The wetland class is Slope 'PM<. T of=- TH €"" W E'TL-A-....}) \ -G S '-Of 6" Wetland Rating Form - western Washington version 2 3 n "p r~ !I.:'\ ------~-~j l.~. 1. nl' i'l OCT - 1 2007 110 A~t20M \ ._~.____..J U'-r ,,~:-:~:I~-~:lrror)'/1 E NT Wetland name or number ~ 5. Does the entire wetland unit meet all of the following criteria? V 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 notjlooding. PA-It\ of 'Wb" Wf:n'"LA-NO tS RtveYl.l lJt NO - 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. FA-r<-T" 0 F ThE' WlS'TlAND I S ~61'RB$lO~~ NO - go to 7 ~The wetland class is Depressional 7. Is the entire wetland unit located in a very flat area with no obvious depression and no overbank flooding. The unit does not pond surface water more than a few inches. The unit seems to be maintained by high groundwater in the area. The wetland may be ditched, but has no obvious natural outlet. ~g, go to 8 YES - The wetland class is Depressional 8, Your wetland unit seems to be difficult to classify and probably contains several different HGM clases. For example, seeps at the base of a slope may grade into a riverine floodplain, or a small stream within a depressional wetland has a zone of flooding along its sides. GO BACK AND IDENTIFY WIllCH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 APPL Y TO DIFFERENT AREAS IN THE UNIT (make a rough sketch to help you decide). Use the following table to identify the appropriate class to use for the rating system if you have several HGM classes present within your wetland. NOTE: Use this table only if the class that is recommended in the second column represents 10% or more of the total area of the wetland unit being rated, If the area of the class listed in column 2 is less than 10% of the unit; classify the wetland using the class that represents more than 90% of the total area. gW1jJfjfJtlii$'~i&iWirlilif.l1jtw~tt(lililtifJit'/j~lrl <'ra~~f1i;{i .., . Slo e + Riverine Slo + De ressional Slo + Lake- . e Depressional + Riverine along stream within boundary D ressional + Lake-frin e Salt Water Tidal Fringe and any other class of freshwater wetland :"i':'Wt{ifJ!lIXf!tll~::flf:!rttl:lif~':!jrilltj""<i; Riverine De ressional Lake-frin e Depressional De ssional Treat as ESTUARINE under wetlands with special characteristics I 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. ~ ':;t...oP6 + R\ \I~UJ~ + J:>tPV?.65S\otJ Al..- Wetland Rating Form - western Washington version 2 4 August 2004 11 . ::g~pt~s~jonal~AdFlatsW~tl~nlls . ..;?;~;~~~~i~lJ.A.J:.rl'r:f?Jffl'~I,QN'&:..." ....mAicaf<jrstl:uJ.tth~.wetla1ld~l~Qii()il$'@.>.....; hn . ovewater: . uali D D 1. Does the wetland unit have the Dotential to improve water quality? D 1.1 Characteristics of surface water flows out of the wetland: 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 "flaf' 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 = I (If ditch is not permanently flowing treat unit as "intermittently flowing") Provide hoto or drawin S 1.2 The soH 2 inches below the surface (or duff layer) is clay or organic (use NRCS deC{tio?j YES points = 4 NO oints = 0 D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest Cowardin class) Figure ~ 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 Ma of Coward in v etation classes D1.4 Characteristics of seasonal ponding or inundation. 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 1 0 yrs. Area seasonally ponded is > Y2 total area of wetland Area seasonally ponded is > ~ total area of wetland vi Area seasonally ponded is < ~ total area of wetland Wetland name or number --A- D D D D D D Total for D 1 points = 4 points = 2 points = 0 Ma of H dro eriods Add the points in the boxes above D D 2. Does the wetland unit have the opportunity to improve water quality? 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 comingfrom several sources, but any single source would qualify 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 ofwet1and Wetland is fed by groundwater high in phosphorus or nitrogen Other YES multi lier is 2 NO multi lier is 1 TOTAL - Water Quality Functions (see p.3B) Figure '2- , 4- 3 Figure _ o .._~--- ..----- (see p. 44) multiplier Wetland Rating Form - western Washington version 2 5 I \ \ August2004 :"~-' '''TY UJI.i~ dry DEVELOPMENT J Wetland name or number A D. . .])epressional and Flats Wetlands HYDROLOGIC FUNCTIONS - Indicators that the wetland u:nit{unctions t() reduce floodin and stl'eamqe dation D 3. Does the wetland unit have the Dotential to reduce flooding and erosion? 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 sli tl constricted, surface outlet ermanentl owin 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 (if 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 ondin less than 0.5 ft oints = 0 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 "'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 unit is in the FLATS class Total for D 3 D ints = 0 D D D D points = 5 points = 3 points = 0 oints = 5 Add the points in the boxes above D D 4. Does the wetland unit have the oDDortunitv to reduce flooding and erosion? 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 ora river or stream that has flooding problems JL 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 - Other YES multi lier is 2 NO multi lier is 1 TOTAL - Hydrologic Functions Multiply the score from D 3 by D 4 Add score to table on p. 1 Wetland Rating Form - western Washington version 2 6 August 2004 (seep.46) o t 3 \"-4=---1 ..----- (see p. 49) , I multiplier 2.. <6 Wetland name or number A H 1. Does the wetland unit have the potential to provide habitat for many species? H 1.1 Vel!etation structure (see p. 72) 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 ifunit is smaller than 2.5 acres. _Aquatic bed -L Emergent plants if Scrub/shrub (areas where shrubs have >30% cover) ../ Forested (areas where trees have >30% cover) If the unit has a forested class 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 Add the number of vegetation structures that qualify. If you have: 4 structures or more 3 structures 2 structures 1 structure Map of Cowardin vegetation classes points = 4 points = 2 points = 1 ints = 0 H 1.2. Hydroperiods (see p. 73) 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 hydro periods) _Permanently flooded or inundated 4 or more types present Seasonally flooded or inundated 3 types present ..; Occasionally flooded or inundated 2 types present 1- Saturated only 1 type present ~ Permanently flowing stream or river in, or adjacent to, the wetland _ Seasonally flowing stream in, or adjacent to, the wetland _ Lake-fringe wet1flnd = 2 points ~reshwater tidal wetland = 2 points Map of hydroperiods H 1.3. Richness of Plant SlJecies (see p. 75) Coirnt the number of plant species in the wetland that cover at least 10 :If. (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 canary grass, purple loosestrife, If you counted: > 19 species List species below if you want to: 5 - 19 species < 5 species Wetland Rating Form - western Washington version 2 13 points = 3 points = 2 point = 1 points = 0 Canadian Thistle points = 2 points = 1 points = 0 Figure .s:.. 4- Figure _ 2- 2- r'-: r i"'0 :. \ .!ffotalforp~~ Il\ \ ~llkb~CT - 1 2007 J lS 1 .c:ouTm utt' , JiTy O-fVE \_- Wetland name or number A H 1.4. Interspersion of habitats (see p. 76) igure_ 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. o None = 0 points Low = 1 point Moderate = 2 points [riparian braided channels] ~ High = 3 points NOTE: If you have four or more classes or three vegetation classes and open water the ratin is alwa s "hi ". Use ma of Coward in ve etation 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 V 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 33ft (lOm) _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<I 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) _ 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 Add the scores om Hl.I, H1.2, HI.3, HI.4, H1.5 / Comments Wetland Rating Form - western Washington version 2 14 August 2004 3 4- I I I '.1 .1 ----- I (5 I -_____.1 . I ., 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. " - 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> "2- 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 = O. - Buffer does not meet any of the criteria above. Points = 1 Aerial photo showino buffers H 2.2 Corridors and Connections (see p. 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 = 4 points (go to H 2.3) NO = go to H 2.2.2 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 1- 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 H 2.3) NO == H 2.2.3 H 2.2.3 Is the wetland: within 5 mi (8kIn) of a brackish or salt water estuary OR within 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 ooints ,------------- 11\ vi: ~o~rpage~ i w \~ \~ If '-1 \ \ r..------~I;l( I I dl ! 'I \ . '; \ ill , OCT - 1 2007 t:V \ : i -;~~~~::I · .~_'.::.~_'_'::.:2:.~J Wetland Rating Form - western Washington version 2 15 Wetland name or number A H 2.3 Near or adiacent to other Drioritv habitats listed bv WDFW (see p. 82) Which of the following priority habitats are within 330ft (100m) of the wetland unit? NOTE: the connections do not have to be relatively undisturbed. These are DF.W definitions. Check with your local DFW biologist if there are any questions. V Riparian: The area adjacent to aquatic systems with flowing water that contains elements of both aquatic and terrestrial ecosystems which mutually influence each other. _Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres). _Cliffs: Greater than 7.6 m (25 ft) high and occurring below 5000 ft. _Old-growth 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. _Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where grasses and/or forbs form the natural climax plant community. _Talus: Homogenous areas ofrock rubble ranging in average size 0.15 - 2.0 m (0.5 - 6.5 ft), composed of basalt, andesite, andlor sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. _Caves: A naturally occurring cavity, recess, void, or system of interconnected passages _Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component of the stand is 25%. _Urban Natural Open Space: A priority species resides within or is adjacent to the open space and uses it for breeding andlor regular feeding; andlor the open space functions as a corridor connecting other priority habitats, especially those that would otherwise be isolated; and/or the open space is an isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban development. _ Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi- enclosed by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean water is at least occasionally diluted by freshwater runoff from the land. The salinity may be periodically increased above that of the open ocean by evaporation. Along some low-energy coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward to where ocean-derived salts measure less than 0.5ppt. during the period of average annual low flow. Includes both estuaries and lagoons. _ Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs, snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and that contribute to shoreline function (e.g., sandlrock/log recruitment, nutrient contribution, erosion control). If wetland has 3 or more priority habitats = 4 points If wetland has 2 priority habitats = 3 points Ifwetland 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 version 2 August 2004 16 Wetland name or number ~ H 2.4 Wetland Landscape (choose the one description of the landscape around the wetland that bestfits) (see p. 84) There are at least 3 other wetlands within Y2 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 Y2 mile points = 5 3 ..( There are at least 3 other wetlands within Y2 mile, BUT the connections between them are disturbed points = 3 The wetland is Lake-fringe on a lake with disturbance and there are 3 other lake-fringe wetland within Y2 mile points = 3 There is at least 1 wetland within Y2 mile. points = 2 There are no wetlands within Y2 mile. points = 0 ------ H 2. TOTAL Score - opportunity for providing habitat I ~ I Add the scores from H2.1,H2.2, H2.3, H2.4 ------ TOTAL for H 1 from page 14 15 ----- Total Score for Habitat Functions - add the points for H 1, H 2 and record the result on 2-3 p. 1 ----------------r:--- rr; ,---,,'\ I \; '-'.:::l:lld .--....-.-.--.---.--, I i ~:' !i t ! j OCT - 1 2007 \ 0:!J ..~_._..-J August2004 _.:v'!;Y , v ,'i'o,1', QP',IENT -,'.' --~-~--~--- Wetland Rating Form - western Washington version 2 17