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Home My WebLink AboutWetland Delineation revise 3/2008 601105002 UpdtittJ ".~ /YrMYlO d. a&J ~5i()'i?/ad' ~7T) ~ 4"! -- . lrr-r !~'!If . 'ij:~ Tj . '\~,JI_;f "', --' A'f, !. \f T~D'" "- ..,~ /l\~/ /1-1'._,' ~ j ",l_l,[ , March 19, 2008 ADD l' 0 ! 1\1, \ 2008 JEFFERSON COUNTY DeD Bonnie Story Lawrence Thomsen PO Box 56 Quilcene, W A 98376 Re: Revised Wetland Categorization and Buffer Verification for the proposed House Reconstruction at 293 Blueberry Hill Drive (Tax Parcel No. 601105002), Quilcene, Jefferson County, Washington. Dear Bonnie and Lawrence: Jen Dadisman visited your site in October 2007 to delineate the wetland boundary closest to your proposed home. At that time, she determined that the wetland met the criteria for a Category II system based on, the Wetland Rating System for Western Washington, Second Edition (Ecology PUblication No. 93-74) as required by the Unified Development Code of Jefferson County, Section3, Land Use Codes. Jefferson County recently adopted a new critical areas ordinance (Chapter 18.22 Critical Areas-Planning Commission Hearing Draft) and as part of that code, they have adopted the use of the Revised, 2004, Washington State Wetland Rating System for Western Washington (Ecoiogy Publication No. 04-06-025). The rating systems differ in that the previous rating system utilizes wetland characteristics to determine the appropriate wetland category and the new rating system utilizes position in the landscape and the way the wetland functions to determine the appropriate category. The buffers are now based on the' total score for the wetland in general and the scores for two of the three functions (water quality and habitat functions) for which wetlands are rated. The buffers are also based on the impact of land use and single family homes on 5 acre parcels that exceed the limitations for low impact land-uses are considered moderate impact land uses. I conducted the delineation and categorization for the parcel immediately north of your parcel so I was able to conduct the updated categorization in the office. According to the rating form (attached), the wetland now meets the criteria for a Category III system that scored 47 points on the rating form because it is a sloping system that has potential but no opportunity to perform water quality functions and has low potential and opportunity to perform hydrologic functions. The wetland has potential for habitat functions because there are three vegetation communities with good plant species diversity and there are several hydrologic regimes. It has 1015 S.W Harper Road, Port Orchard, Washington 98367 (360) 876-2403 Fax (360) 876-2053 o " Story IThomsen March 19, 2008 page 2 opportunity because it has good buffers on both sides (at least 100 to 170 feet) and has relatively undisturbed ,corridors to other. habitat or wetland areas. The wetland scores a total of 23 points for habitat functions. Chapter 18.22 of the JCC (Planning Commission Hearing Draft version), Table 18.22.330 (2) specifies 110 foot buffers for Category III wetlands that sCore 20-28 . points for habitat functions. The buffer specified in your wetland delineation and categorization letter dated November 9, 2007 is 100 feet so the new buffer only adqs 10 feet. Based on the wetland delineation drawing included in me November 2001 letter, your home is proposed in the cleared area west of the wetland where there is an . existing garage and the garage is.about 130 feet from the delineated wetland boundary. This indicates that the proposed home is well outside the required 110 foot buffer from the on-site wetland and it is also outside the buffer as measured from the wetland area off-site to the south, which appears to be about 100 feet from the cleared area. This letter should be provided to the Jefferson County Department of Community Development for their review as part of your building permit application. I would revise your site plan to reflect the no foot buffer change so that is accurately depicts the limits of the critical area on your property. If you have any questions or concerns, please feel,free to contact me at (360) 876-2403. Sincerely, -JttC4{If~ 6~~<lrl- Joanne Bartlett Professional Wetland Scientist !'l)> h 4.. '\,1;'1 r"f <-Cor If .If:;. '----';1. ,'Tf",?, '/I{ 'I /'r ~..f.~,J,,) -cC:l'/1 !. , Attachments /!l\-, ij- It l' J.. tJ It. t " u/h L,1](ln 't. i 'J'~;i / ,~I I J ,_'~ . ~/, ",I/l(~,,.~ v u;~'/r !I tlJ ROUGH DRAWING NOT TO SCALE NOT A SURVEY ~ , . .J, 1 ~ eleG1l~ - - .. 11t<g ~ :a E Site Address: 293 Blueberry Hill Drive Quilcene, W A , Tax Parcel No, 601105002 Acres: ~ 5 ~ Wd141\ ~e.. ~IIJ--.., " WETLAND - CATEGORY II , Wetland Boundary Flags, WB A-I to WB A-II Test Holes =0TH, 1-5 100 Foot Buffers with a 5 Foot Building Setback ...... Bonnie Story and Lawrence Thomsen PO Box 56 Quilcene, W A 98376 / <<Ii Wiltermood 'A'~ Associates, Ine. lOI'.tlF. .,..RMJ ,." 0nW. "" 98367.WJG (360)~ &t(36OJ~ Wetland name or number Name of wetland (if known): Rated by j .~lA,(-\\ {~ WETLAND RATING FORM - WESTERN WASHINGTON Version 2 - Updated June 2006 to increase accuracy and reproducibility among users " 0 / . I" ll. d _ ..... 'I. , " \ J () 7 l.,J.vp-iCU'Vvttllrl b\A~t'o~1,- . th\~ "Nt;\"\ CUI!,,(1.. Date of site visit: jiLz) L far~ e 1+0 ' Y'lov4h> Trained by Ecology? YesXNo_ Date of trainingS) oS SEC: TWNSHP: RNGE: Is Srr/R in Appendix D? Yes_ No_ Map of wetland unit: Figure __ Estimated size ~ '3 a-C--re :,) SUMMARY OF RATING Category based on FUNCTIONS provided by wetland 1_ 11_ nl~ IV_ Category I = Score >=70 Category II = Score 51-69 Category III = Score 30-50 Cate20rv IV = Score < 30 Score for Water Quality Functions Score for Hydrologic Functions Score for Habitat Functions TOTAL score for Functions , t to z:3 l Category based on SPECIAL CHARACTERISTICS of wetland 1_ 11_ DoesnotApply_ !PV? ~l';r' ,,' ,,"~~ -:r ". iY1r~l,.,~ Category (choose the "highest" category from above) , .......// liJ 1 tl ',!.. 'il Summary of basic information about the wetland unit j'rf,tJ"/;{1 < [; t "I' ,n Po! fI '1."""," ,nll,',11J' '.~ t' ,'~ ' " ,c ~ l ,.- ~'. lflJUiV/ , Estuarine Natural Herita e Wetland 80 Mature Forest Old Growth Forest Coastal La oon Interdunal None of the above ~ De ressional Riverine Lake-frin e Slo e Flats Freshwater Tidal Wetland Rating F onn - western Washington version 2 tltermood msociates, Inc. 1015 s. U7. Harper Road Port Orchard, WA 98367-9306 (360) 876-2403 Fax (360) 876-2053 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. Cheek List for Wetl<<iJtds That May Need Additional Protection i,.,n additiQntotltc\:r()tection recoll1mendedJor its cate or ,,"_,,-.... .....,.'.'.::.:c_..'o'...,;,.,<,_~",.".:";.."..,._..".._"._,: .,.... .... __ ",.""',..,_,,. ..,.",.,;.."",.... : .. _,' _.:'__ ',_., ... '_' ,..... _...._. ",,'_.'~_.:_. .. .'.... .... .. SPI. Has the wetland unit been documented as a habitat for any Federally listed Threatened or Endangered animal or plan/species (TIE 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? YES NO ~ x. 'j.. 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. x To complete the next part of the data sheet vou 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 Classification of Wetland Units in Western Washington If tile JtfdrQlttgic cnter'iaUsted in e;lch que~~QJl4ttnQt apply to the entire unit being rated, you Pfobablyh~ve ~ unit with multipleU'GM cla.sses., In this case, identify which hydrologic criteria in questions 1-7 apply, and go to Question 8, .,". " 1. Ar~ water levels in the entire unit usually controlled by tides (i.e. 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 forms for 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. ~ndwater 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 ofthe 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; L::\_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? ~ 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. L 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 humniD~~J,depressions are usually <3ft di~ and less than 1 foot deep).- NO - go to 5 ~ The wetland class is Slope Wetland Rating Form - western Washington version 2 3 August 2004 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 r:~ot flooding. , & 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, i~r of the wetland. ~ 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. NO - 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 ofthe 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. Slo Slo Slo e + Lake-frin e Depressional + Riverine along stream within boundary De ressional + Lake-frin e Salt Water Tidal Fringe and any other class of freshwater wetland Riverine D ressional Lake-frin e Depressional De ressional Treat as ESTUARINE under 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 version 2 4 August2004 Wetland name or number s s S 1. Does the wetland unit have the potential to improve water quality? S 1.1 Characteristics of average slope of unit: Slope isl% or less (a 1% slope has a 1 foot vertical drop in eleVation for every 100ft horizontal distance) c{oints ~ 3 Slope is 1% - 2% oints = 1:--=' Slope is 2% - 5% points = I 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 deJi . . YES = oints NO = 0 oints S 1.3 Characteristics of the vegetation in the wetland that trap sediments and pollutants: 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 andplants are higher than 6 inches. Dense, uncut, herbaceous vegetation >90% of the wetland area J!.oin~ =6 Dense, uncut, herbaceous vegetation> 1/2 of area ~ints = 3 ~ Dense, woody, vegetation> Y:z of area points = 2 Dense, uncut, herbaceous vegetation> 1/4 of area points = I Does not meet any of the criteria above for vegetation points = 0 Aerial hoto or ma with v etation 01 ons Total for S 1 Add the points in the boxes above S 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 coming from several sources, but any single source would qualify as opportunity. s s s s - Grazing in the wetland or within 150ft - Untreatedstormwater discharges to wetland Tilled fields, logging, or orchards within ISO feet of wetland - Residential, urban areas, or golf courses are within 150 ft upslope of wetland - Other YES multiplier is 2 ultiplier is 1 TOTAL - Water Quality Functions Multiply the score from Sl by S2 Add score to table on .1 Comments APt,; 1 '-,_( n... () II ",If:{ ,(ti!JU . JEFflfi,r:nAI j7flll,.'", Wetland Ratmg Form - western WashmgtoffUlr oUU/V;lVjiln versIOn 2 i U I.,u August 2004 (see p. 64) L- 3 Figure ~ 3 I -fj- I ---- (see p. 6 7) multiplier 8 Wetland name or number S 3. Does the wetland unit have the potential to reduce flooding and stream erosion? 5 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. Dense, uncut, rigid vegetation> 1/2 area of wetland Dense, uncut, rigid vegetation> 1/4 area More than 1/4 of area is grazed, mowed, tilled or vegetation is not ri id oints = 0 S 3.2 Characteristics of slope wetland that holds back small amounts of flood flows: The slope wetland has small surface depressions that cc:;tain ~~ over at least 10% of its area. YES oints = 2 NO oints = 0 Add the points in the boxes above C[oints = y pomts = 3 points = 1 5 5 5 S 4. Does the wetland have the opportunity to reduce flooding and erosion? 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. ':6- Wetland has surface runoff that drains to a river or stream that has flooding problems - Other (Answer NO if the major source of water is controlled by a reservoir (e.g. wetland is a seep t n the downstream side of a dam) YES ulti lier is 2 NO multi lier is 1 TOTAL - Hydrologic Functions Multiply the score from S 3 by S 4 Add score to table on p. 1 5 Comments Wetland Rating Form - western Washington version 2 August 2004 12 (see p. 68) (0 L- ---- I _8__ see p. 70) multiplier z. llo Wetland name or number These questions 1ll!l!11 to wetlands of 411HGM classes. HABITAT FUNCTIONS - Indicators that unit functions to provide important habitat H 1. Does the wetland unit have the potential to provide habitat for many species? H 1.1 Vegetation 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 if unit is smaller than 2.5 acres. _Aquatic bed ~Emergent plants ~Scrub/shrub (areas where shrubs have> 30% cover) ~Forested (areas where trees have >30% cover) Jf the unit has a forested class check if: L The forested class has 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, mosslground-cover) that each cover 20% within the forested polygon Add the number of vegetation structures that qualify. Jfyou have: 4 structures or more 3 structures 2 structures 1 structure Map of Cowardin vegetation classes C1>oints ~' points = 2 points = I oints = 0 H 1.2. Hvdroperiods (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) _Permanentiy flooded or inundated 4 or more types present ~~nts = L LSeasonaUy flooded or inundated 3 types present C~mts '=.V _Occasionally flooded or inundated 2 types present point = I LSaturated only I type present points = 0 _ Permanently flowing stream or river in, or adjacent to, the wetland ---..X.. Seasonally flowing stream in, or adjacent to, the wetland _ Lake--fringe wetland = 2 points _Freshwater tidal wetland = 2 points H 1.3. Richness of Plant Species (see p. 75) Count the number of plant species in the wetland that cover at least 10 ff. (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 Map of hydroperiods Canadian Thistle points = 2 c:::;~ . =0 "t "',~ Points (only I score per box) Figure _ ~ Figure __ 2- 1'"1/ :r. ",,. t' ;1 I Total for page 'I Wetland Rating Form - western Washington version 2 13 August 2004 Wetland name or number H lA. Interspersion of habitats (see p. 76) Decide from the diagrams below whether interspersion between Cowardin vegetation classes (described in H 1.1), or the classes and un vegetated areas (can include open water or mudflats) is high, medium, low, or none. o None = 0 points @erate=2 ~ Low = 1 point [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 h". Use map of Cowardin v elation 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 I,4 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) L 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 Add the scores om HJ.I, HI.2, H1.3, HI.4, HI.5 Comments Wetland Rating Form - western Washington version 2 14 August 2004 igure _ Z- "3 l z- I _.___J 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 - 100m (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 _ 100m (330ft) of relatively undisturbed vegetated areas, rocky areas, or open water> 25% X 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% ofthe 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 '3 Aerial Dhoto showina 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 corrid~ YES = 4 points (go to H 2.3) ~ 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 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 questio~ ' , ~ints (gotoH2.3) NO=H2.2.3 H 2.2.3 Is the wetland: within 5 mi (8km) 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? Z YES = 1 point NO = 0 points c:::. Total for page ::::::J Wetland Rating Form - western Washington version 2 15 August 2004 Wetland name or number H 2.3 Near or adiacent to other priori tv 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. v.These are DFW definitions. Check with your local DFW biologist if there are any questions. ~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 f1. _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, and/or 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 and/or regular feeding; and/or 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. _EstuarylEstuary-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 O.5pp1. 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., sand/rock/log recruitment, nutrient contribution, erosion control). If wetland has 3 or more priority habitats = 4 points If wetland has 2 priority habitatEi po~ If wetland has 1 priority habita = 1 poin No habitats = 0 points Note: All vegetated wetlands are by definition a priority habitat but are not included in this I list. Nearby wetlands are addressed in Question H 2. 4) Wetland Rating Form - western Washington version 2 16 August 2004 Wetland name or number H 2.4 Wetland Landscape (choose the one description of the landscape around the wetland that best fits) (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, fiB, 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 'l1 mile points = 5 There are at least 3 other wetlands within Y2 mile, BUT the connections between them are disturbed ~ints = D The wetland is Lake-fringe on a lake with disturbance and there are 3 other lake- nnge wetland within 'l1 mile points = 3 There is at least I wetland within Y2 mile. points = 2 There are no wetlands within Y2 mile. points = 0 3 H 2. TOTAL Score - opportunity for providing habitat r-~-'-- Add the scores from H2.l,H2.2, H2.3, H2.4 I \ \. r- ------- TOTAL for H 1 from page 14 \2 .......-- -...- Total Score for Habitat Functions - add the points for HI, H 2 and record the result on Z-:s p. 1 l?ecr: APR 1 o JEfflll. (l!1~1 ~ llU{V tJlJj/'TI1 (j I /leD Wetland Rating Form - western Washington version 2 17 August 2004 1 2 3 4 5 Moderate Imoact Land-Uses shall include the followina: 6 · Sinale-familv residential use on oarcels of one (1) acre to less than five (5) acres: 7 · Sinale-familv residential use on oarcels of five (5) acres or lamer in size with landscaoina. 8 accessory structures and imoervious surfaces that exceed the limitations for Low Imoact 9 Land-Uses (see Definitions): 10 · Private roads of drivewavs servina three (3) or more residential oarcels: 11 · Paved trails; 12 · Passive recreation areas (see Definitions set forth in JCC Chaoter 18.10): 13 · Utilitv corridors (orivate or oublic) with a maintenance road: 14 · Class IV-General forest conversions. includina conversion ootion harvest olans. on lands 15 desianated as "Resource Lands" or "Rural residential". 16 This hearing DRAFT of a proposed new Chapter 18.22 JCC would amend and recodify provisions principally contained within existing Chapter 18.15 of the Jefferson County Code, The language embodied within this DRAFT is based upon preliminary direction provided by the Planning Commission. "Clean copy" language not highlighted or underlined is substantively the same as the existing code; language depicted with double-underlining or strike-outs and double-underlining is proposed new or amendatory language. TABLE 18.22.330(~) WETLAND CAT AGORIES. RATING SCORES & BUFFER WIDTHS FOR MODERATE IMPACT LAND USES Wetland Cateaor'\( Wetland Ratina Scores: · Habitat (H) Buffer Width with , Wetland Delineation Additional Buffer Width if No Delineation + 20 feet + 30 feet 17 18 19 . ~ m u Total of scores<30 fTotal of scores<30l H = 20 to 28 [Total of scores<50l fWa = 24 to 32 & H<20l fH = 20 to 281 fEstuarine1 rtnterdunall H<28 fT otal of scores<70l rwa = 24 to 32 & H<20l fH = 20 to 281 fCoastal Laaoon 1 fEstuarinel fNational Heritaae Wetland1 ~ +40 feet 1 +50 feet PLANNING COMMISSION HEARING DRAFT 45 CHAPTER 18.22 JCC - CRITICAL AREAS OCTOBER 29, 2007