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Home My WebLink About03587 - Technical Information Report i • ` . � OLYM PUS VILLA h LUA �0-090 �' Utili Permit #U110042 � NE 7t" PLACE and NILE AVENUE NE Renton, Washington Technical Information Report CITY OF RF�'T^^' ' REC��R . � } April 20, 2011 �� 2 5 2p�� Revised )une 14, 2011 Revised July 18, 2011 PLAN RE1/IEW Prepared for: Camwest Olympus Villa, LLC ITY F RENTQ 9720 NE 120`h Place RECEIV�D Kirkland, Washington 98034 JUL 2 3 2011 (425) 825-1955 x-142 offioe t O; 3 � °� (425) 825-1565 fax PLAN REVIEYV L �• � �ti 0 Submitted/Prepared by: ° Offe Engineers, PLLC � � Attn: Darrell Offe, P.E. �g $'�� 13932 SE 159"' Place fO��$� � Renton, Washington 98058-7832 (425) 260-3412 office �� (425) 988-0292 fax 3 �8� � �roject Description The purpose of this report is to present a final conclusion for the storm drainage control and treatment of this 11-lot proposed plat of Olympus Villa in Renton, Washington. This project is a proposed single family plat located in the Renton Highlands at the intersection of Nile Avenue NE and (proposed) NE 7"' Street. The project also takes access off the existing road of Pasco Place NE within the City limits of Renton. The Olympus Villa project is a proposal to create 11 single family lots from an existing 6.72 acre (292,483 sq. feet) parcel zoned R-4. Approvals for the project allows for Lots 1-7 can be clustered using the R-8 zoning; and Lots 8-11 are to use the R-4 zoning requirements. The project currently consists of over-grown pasture land with sparse trees. On the east side of the property is a large Class 2 wetland that extends off the property to the south and east. No work is proposed within this Class 2 wetland, mitigation and wetland creation is proposed within the buffer. There are no existing buildings on the property. The existing King County Tax Parcel number is 112305-9065. The parcel is bounded to the West by Nile Avenue NE; to the north by large parcels with single family homes; to the east and south by resent single family developments. Review of Resouroes Critical Drainage Area Map • Maplewood Creek Sub Basin � Cedar River/ Lake Washington Watershed Flood plain/floodway (FEMA) Maps , • There is no mapped floodplain in the immediate area per the available FEMA map. ' Sensitive Areas I • Wetlands —There are two wetlands located on the project; they consist of a Class 2 wetlands to the east side of the property that continues off site to the south and east, '� there is a smaller Class 3 wetland on the west side of the property. See the Sensitive Areas study prepared by Ed Sewall and Assoc. as part of the preliminary plat submittal package. • Streams and 100 Year Flood Plains—There are no streams or floodplains on or near the project. • Erosion Hazard Areas—There are no landslide hazard areas on this project. • Landslide Hazard Areas—There are no designated sensitive slopes on or adjoining the property. • Seismic Hazard Areas—The area is not mapped as a seismic hazard area. • Coal Mine Hazard Areas—The property does not appear to be located within a designed coalmine hazard area. I . ' U.S. Department of Agriculture, King County Soils Survey • The soils on the site are classified as Alderwood gravelly and loam (AgB), 5 to 10 percent slopes. These soils types are described in the Soil Survey of King County Area, Washington (Soil Conservation Service [SCS], 1973). Alderwood soils are characterized as gravelly sandy loam to a depth of 12 inches and gravelly, sand loam with organics between 12 and 27 inches. This gravelly, sand loam structure is underlain by weekly to strongly consolidate till to a depth of 60 inches. Permeability is moderately rapid in the surFace layers and very slow in the till layer, runoff is slow to medium, and the potential for erosion is moderate. Soil Logs can be found as part of Appendix G of this report. Flow Control / Water Quality design — The project would be required to meet the 2009 KC Drainage Manual (Modified by the City of Renton) for design and sizing. The area is designated as Forest Condition pre- existing condition. A wetpond shall be designed for this treatment. Field Inspection Offe Engineers has visited the site on several occasions during the fall of 2010 and winter of 2011. The most resent visit occurred the morning of April 20, 2011 as part of the downstream analysis. The weather conditions were dry, cool, and partly cloudy. The property has two separate drainage basins both of which are within the Maplewood Creek sub-basin; westerly Basin A slopes from the extension of Pasco Place NE on the east towards Nile Ave to the west, Basin B is the area east of Pasco Place which slopes towards the east and southeast. Basin A flows westerly and collects into the roadside ditch along the east side of Nile Ave. This ditch is very flat with a grade towards the south. A grade break (high point) is located within the ditch at approximately station 22+00 along Nile Ave. The entire drainage from Basin A sheet flows into this ditch then continues south along Nile Ave towards NE 4th Street, approximately 2600 feet south. Along the ditch line are several cross culverts for access and the intersection of NE 6"' Street. Near NE 6"' St. the ditch is enclosed within conveyance pipes for about 150 feet then continues within the open ditch. During the several site visits, there is no indication of overtopping or capacity problems within the open ditch (culvert) system. Basin B sheet flows towards the east and into the larger Class 2 wetlands on site. The drainage then continues within the wetland area towards the SE corner of the properly and is collected with a bird-cage structure just west of Rosario Ave NE (structure #18575) as part of the plat o� Maureen Highlands approximately 700 feet downstream. This structure is part of an overall drainage and pond system for this plat. The flow then continues within a 24" convey pipe into large storm water pond (#P1194), 1050 feet downstream. The pond then discharges at the SE corner of NE 6"' Street and Shadow Place NE into a drainage swale (corridor) — which is along the easterly boundary of Maureen Highlands. The drainage swale is heavily over-grown with small alders and blackberries. A site inspection from the end of NE 6"' and from neighboring yards shows no indication that flooding of structures is occurring within this corridor. Actual walking of the corridor was limited by fences and lack of easement. The drainage reaches this corridor then continues south an additional 1250 feet to NE 4"' Street. No signs of overtopping or flooding appears within the Basin B downstream system to NE 4th Street. Photos of both these systems can be found in this report under Appendix A, figure 4. APPENDIX A - DRAINAGE CONTROL PLAN B -STORM WA TER CALCULA TIONS C-DOWNSTREAM REVIEW D-GROUNDWA TER PROTECTION AREA MAP E-DR.4Fl DECLARATION OF COVENANT-Inspection and Maintenance F- TIR WORKSHEET G-SOIL LOGS(byAssociated Earth Sciences, Inc.) � � A - DRAINAGE CONTROL PLAN PORTION OF 7HE NW 1/4,SW 1/4 OF SECTION 11,TOWNSHIP 23 N,RANGE 5 EAST,W.M. �� p STORM WATER MANAGEMENT NOTES: cws�urnm inutmNs sHwN�o+cw�ac � „ � ' (1)n.ON CON1Ral wF's aa�sll�uclW a�c�'M�ar (a)Nwc owYva�Sow�nox s iW1aiE ��srar�aui r�*o Liroei C TEicMoucr�UL wm 9 'AWl!f OrO1qW.IWIfMIm NID NPf N C000 F011 YMIfNIWItE MIO ORI4NION W T1F 001lINlD IOiRRRN.IDC�TI011 a/11 EffISTiNG I/�IE B$ Rviw er ua wt ow¢n. ttmmw iwo wc�raw. r u*at�*[s rnme ra ca�o�cu�ca�smucrmra ro (x)rui o�tnroN nav ca�ma�wv ws�in�n !I w��ammT��.�v Ti��s n�o�r¢s 3 ran np rur-�nr� � °� ^ (�)n,t asnec�m rEwwa+c wiu nnw aoNmot an � �avaauun rm unur¢s iar aovn ve uranxs �,�� 0 IMS!@I NNJIm 1011 T1J�IAT: a � wr aww w nicw va�a�ac�rmK � m . .S. ,....row rx�ocsas rou om�-am-�e�-m� °� , ..... . ^ _.... .,.. � o NoO T T �� .. . �F �, O.F J^� � f.aCD o �s Mol 1�OIIEM � � 4000 �/100 � � _ 1 � y Rlt� St1� " v.°^".wwu � zI� a33 __,. �aso I � �� ``------" I .. .. �N ......,einw �. . 4 �,�� ; � � , �� . , �� --- --- � � , , . , ,._-,��. � �---- � ----, �,� � .� r � � ��r � i • � w.a.�r I� �� } ry .......... .. .................el� . e.ww�r �� I'r'� �I 2 SECTION A-A �� '',. 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M.. �. i ................, ',.... , .. .. ...*a...�� . .....�.. . .�- .� . . .� ..W� .. ^ J � ........... Q �� /� � , , j � �,cp J � q I�A.Y �00 11AR , �.. ...` � . + 1r ' � � O6� LLC O � 1 . � .. .. ,M_. .es.. :.m. ...y..,.. ! . � . , � ..re;. 6 P1� , ...i ', ��O,Y� i � a�� .. �. . .. .,. . � _ I ... ,. E �� .�.�. %...1.. I .. O � � ..I . .1 �;-� � ' ,p�� ' 4y � � �' .. , �� : � yaia ..J, ._.. ...,.... �� . _.. . .. .. t+ot � .w. . �u., �.. �-7f7t�'iWii'lR�il 3 �� ...,.. . .�ui.. U I�I I . � �' .. � a ; a t .. . � d��Ms �"�a'ddi� �� „� rp� LII.'�IT IFIt�F1M ' � 11V.I!M-�f�F�� , , � �. � N� . ' SI IY tl N�!0� !f � I' �Nr.. � ' .i .b... ,......,... . . ........ ........ ... ............. ... .........P�o. �� . ..... � ' ..,..... .i,..,. _e�e-;. DA1[ Yovnnon I . . � '. . � , ,� ' . ' �. ��, : � J08/q. � i I . �Y �!� � �b �� . . �3 w'� � � . � OMU/q. �I .. �pp ' ' ,�Mm lIILi N[ �. .m... �oa . : 1�[MIO�R IL � �� . , iid6... .. ,, adn_ . . � . slm.._ _... y�oe. .wao� - �iY:bd.. ..iLkA_ �s...wdo.. . ....;.... �o�a0.. �t{ed. ......... �. . � � � ' � � . . �. . ..�� , � 5 oF 9 � Mitigation The project proposes to use the 2009 King Counry Drainage Manual (with the City of Renton Modification) for storm water treatment of the targeted impervious and for the Pollution Generating Impervious Surfaces (P.G.I.S.). The proposed storm water mitigation for this development is to: (i) utilize full dispersion of Lot 1 with a 100'flow path within the wetland buffer/open space; (ii) provide lot area BMP's for each individual building permit — consisting of 10% of the lot area of impervious surface. BMP's can be sheet flow, gravel trench, splash blocks, etc.; (iii) provide a water quality/detention facility <wetpond> within Tract A; (iv) set aside 30% Open Space; (v) provide 10` perforated pipe connection to starm system. Other mitigations were considered - full Dispersion and/or infiltration are not available for lots (2-11). The soils were not conducive to infiltration and flow path lengths were not available for dispersion. The high ground water elevation within the project limited the choices of BMP's on the lots. Review of the 8 Core and 6 Special Requirements within Table 1.1.2A of the 2009 King County Surface Water Design Manual: Offe Engineers has reviewed the Core and Special Requirements in Chapter 1 of the King County Surface Water Design Manual, and addresses each of the requirements as follows: Core Requirzement No, 1 —Discharge at Natura/Location The current property has two points of discharge; Basin A -westerly basin — the property sheet flows to the west and into the drainage ditch along Nile avenue NE, Basin B —easterly basin — flows east into the large wetlands then flows to the southeast corner (this drainage break is approximately along the easterly side of the proposed extension of Pasco Place NE). The easterly basin —this area will be set-aside as open space with the only development being lot 1 which will utilize full dispersion of runoff continuing into the existing wetlands and flowing to the southeast; the westerly basin —this flow will be collected into a wet pond and discharged into the existing roadside ditch along Nile Avenue NE. Core Requirement No, Z—Offsite Ana/ysis There are no upstream basins that contribute to the site. Nile Avenue NE has a ridge line (high point) just to the north of the property. This property appears to be the northerly extents of the basin on Nile Ave that flows into Maplewood Creek. The wetland to the east is proposed to be left un-disturbed with no changes occurring in this basin. Core Requirement No, 3—F/ow Contro/ � The proposed project will be required to provide detention for the impervious areas. I A storm water facility is proposed on the westerly side to collect and discharge flows per the �, 2009 Manual. All the proposed roadways onsite (NE 7t" and Pasco Ave NE) will be collected and �'� conveyed to the storm water facility. Lot 1 on the east will utilize full dispersion with a 100 foot flow path for flow control within the easterly basin. The pond was sized for the impervious runoff of: Wetpond area = 9,583 square feet; roadways/sidewalks/driveways = 31,509 sq. ft.; and from lots 2-11 = 36,000 square feet (OR 3,600 square feet average). Note: the impervious area from lots 2-11 is area released to the storm conveyance system. 10% of lot area impervious surface shall be mitigated on each lot reducing the amount being discharged into the pond. Lot area for 2-11 = 73,297 sq. feet; (10% lot BMP = 7,330 sq. ft.); maximum impervious of each lot 4,000 sq. ft. = 40,000 sq. feet. Therefore, the maximum impervious from lots to pond would be 40,000 — 7,330 = 32,670 sq. feet. Pond was sized for 36,OQ0 sq. ft. Pond is oversized. Core Requirement No, 4— Conveyanae System The proposed on-site conveyance improvements will include curb, catch basins and a pipe network for collection of surface runoff from landscape, driveways, roadways, and sidewalks. Roof downspouts will be connected via tight line to the conveyance system. Core Requirement No. 5—Erosion and Sediment Contro/ A Temporary Erosion and Sediment Control Plan implementing the Best Management Practices will be designed as part of the final engineering plans for the project in accordance with City of Renton requirements. Core Requirement No. 6—Maintenance and Operations The Maintenance and Operations of BMP's can be found within Appendix E. A declaration of Covenant shall be recorded on the plat to allow for inspection and maintenance of storm water BMP's. Core Requirement No, 7—Financia/Gua�antees and Liabi/ity The Financial Guarantees and Liabilities will be required prior to the project being finalized by the City of Renton. Core Requirement No. 8— Water Qua/ity The project will provide water quality treatment as a wetpond within the stormwater facility located within Tract A. Two water quality cells are provided: Cell #1 providing 3,450 cubic feet; and Cell #2 providing 6,440 cubic feet of treatment. The calculations for water quality treatment can be found in the Appendix of this report. Specia/Require�nent No, 1 —Adopted Area-Specific Requirements There is no special overlay or requirements within the City of Renton that affect this proper±y. Specia/Requirement No. 2—F/oodp/ain/F/oodway De/ineation This requirement does not apply. � Specia/Repuirement No. 3— Flood Protection Facilities This requirement does not apply. Special Requirerr�ent No. 4—Source Contro/s This requirement does not apply because the project is located in the basic water quality treatment area. Specia/Requirement No, 5—Oi/Contro/ This requirement does not apply. Specia/Repuirement No, 6—Aquife�Protection Area The project is located outside the zone 1 and 2 aquifer protection areas. i i s�'*' � CI7'Y OF OLYMPUS NLU PUT (LUA70-090) mi»no�� RENTON untm aera�rr #>>ooa2 � _ _ _ _ _ _ � � RFMON, WASNjNGTON �� errw�+raRwe v�.r oo� I M0. aEWpM W uaE MiR + �•� a Y � e i . . E � � . � �� s � I . __... .,._. ...._ . .. . _. _ � ; � � I 3 ;�_ --�e�r� �� ---- -�--- - __ , � � � , ; , I � r.wui�r /Jf� — -- � � �, a ..i.. .9_..: .� �� I �/4} .'Y � J R i. a �r � � l � ' I ' I � _ .' � � � � ; � jc � � .e._ � . �. ; _ _ _--__ �-��.�s.waa�r �,� � � I � 6 � a ' t �� i .._._.._._.._ .. i .r.a.�r � � � I i � � i www�.a�irr � . . 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MAY CRm!BASIN . I �1 �i.�.%•• (LAKE WASMNCTON) ,y. � � BASIN B �/ � � ►uw�w000 cw�ac a�siN •,, �.•".�� pEVELOPED SUB N � � (CEOAR RNER) � PRE— ��,>:�, � �,,. , \ ;;j �,�:,�:d � \ / Upn��.n, �.��.Nf.M , .. �� )t� � � � 1,5�4;-'.;,�;;;.. ..� 4i .. , Z _ � w�._ 1 Q �J F'.4Hch'L NO � � !1�,YO:i90(!2! \ ��.� ...-..:mr..o�n„ �1 � , � .�w��.•nx-o�>..� -'� �� °�s,.�, � FL�� . c�u-.� . ._. _... �:�_,�n•,,. ..._.... _..._ . .... ... iF��ta i . i� ., I` i ��; � � . �n ! i .1I�I, \ � �,: ..��`'��t iercw¢ 1\ '_.. �, i. 1"' � , � �( O� 0� �� ,. �'-�y;��`' �.,; ��{;; �A� � PRE -DEVELOPED SUB BASIN B �, , .� 1 ��W� 7i•cw" I � 1� i � Z A � FLOW ' _.._ ____. r� _. o �,.. F I F� �Y . � O � pqrti : BREAKDOWN OF BASINS Existin_q Site Conditions Total Till Till Area Grass Forest Wetland Notes Basin A 2.88 ac 0.00 ac 2.78 ac 0.10 ac KCRTS lnput Parameters Basin 8 3.84 ac 0.00 ac 2.46 ac 1.38 ac KCRTS/npuf Parameters 6.72 ac Developed Site Conditions Basin A Total Max. Design Till Till Area Imperviou Impervious Grass Forest Wetiand Notes Public R!W 49,144 sf - 24,444 sf 17:635 sf 0 sf 0 sf 8'Planter; 5'Sidewalk,26'paved section Sidewalkl DW - 7,065 sf 0 sf 0 sf 0 sf Lot 2 5,612 sf 3,788 sf 3,600 sf 2,012 sf 0 sf 0 sf Lot 3 5;455 sf 3,489 sf 3,600 sf 1,855 sf 0 sf 0 sf Lot 4 8,467 sf 4,000 sf 3,600 sf 4,867 sf 0 sf 0 sf Lot 5 7,013 sf 4,000 sf 3,600 sf 3,413 sf 0 sf 0 sf Lot 6 7,013 sf 4,000 sf 3,600 sf 3:413 sf 0 sf 0 sf Lot 7 7,013 sf 4,000 sf 3,600 sf 3,413 sf 0 sf 0 sf Lot 8 8,181 sf 4,000 sf 3,600 sf 4,581 sf 0 sf 0 sf Lot 9 8,181 sf 4,000 sf 3,600 sf 4,581 sf 0 sf 0 sf Lot 10 8,181 sf 4,000 sf 3,600 sf 4,581 sf 0 sf 0 sf Lot 11 8,181 sf 4,000 sf 3,600 sf 4,581 sf 0 sf 0 sf Det Pond Tract 13,199 sf 9,583 sf 3,616 sf Totals(Sq.Feef) 135,640 sf 77,092 sf 58,548 sf 0 sf 0 sf Totals(Acres) 3.12 ac 1.77 ac 1.35 ac 0.00 ac 0.00 ac KCRTS lnput Parameters Design 3.12 A cres Maximum Impervious caiculation-R-8(75%)for lots 1-7;R-4(55%)for lots 8-11. Then reducing an additional 10%to obtain maximum impervious allowed by 2009 Manual. Maximum Impervious is either lot area'max.allowed by zoning OR 4,000 sq.feet whichever is less. Basin `A'-Existin_q Basin Conditions: Basin `B'—Existinp Basin Conditions: Existing Forest Area = 2.78 Ac. Existing Forest Area = 2.46 Ac. Existing Wetland Area = 0.10 Ac. Existing Wetland Area = 1.38 Ac Total Basin Area = 2.88 Ac. Total Basin Area = 3.84 Ac. Basin `A'—Deve/oped Basin Conditions: Basin `B'—Developed Basin Conditions: Total R-O-W Area = 1.03 Ac. Remaining Forest Area = 2.22 Ac. (Assume 70% Impervrous (Lot#1 fully dispersed, assumed forest) Impervious R-O-W Area= 0.72 Ac. Landscaped R-O-W Area = 0.31 Ac. Remaining Wetland Area = 1.38 Ac. (Wetland Areas to remain undisturbed) Total Lot Area = 1.74 Ac. (Max. per lot coveraqe restriction) Total Basin Area = 3.60 Ac. Impervious Lot Area = 0.83 Ac. , Landscaped Lot Area = 0.91 Ac. ' Total Detention Pond Tract= 0.35 Ac. (Max. water surface assumed impervious) Impervious Tract Area = 0.22 Ac. ', Landscape Tract Area = 0.13 Ac. ', Total Impervious Area = 1.77 Ac. 'I Total Landscape Area = 1.35 Ac. Total Basin Area = 3.12 Ac. Existin_q Basin SummaN: Deve/oped Basin Summarv: Existing Area— Basin `A' = 2.88 Ac. Developed Area— Basin 'A' = 3.12 Ac. Existinq Area— Basin `B' = 3.84 Ac. Developed Area— Basin 'B' = 3.60 Ac. Existing Area —Total Site = 6.72 Ac. Developed Area—Total Site= 6.72 Ac. Q ti � m Basin `A'- Existinq Basin Conditions _ _ _ _ --- -- - r� Land tlse Summary `�� '�' '_� ----- — Area --- - �,- Till Forest 2•78 acres , Till Pasture 0.00 acres I � Till Grass 0.00 acres � ��; Outwash Forest 0.00 acres ! Outwash Pasture 0.00 acres i ' ,�, Outwash Grass 0.00 acres Wetland 0.00 acres �' Impervious 0.10 acres �� Total 2.85 acres Scale Facto� : 1.00 Hourly Reduced � Time Series: A-Predev.ts� » I 'z, Compute Time Series Modify User Input �` File for computed Time Series [.TSF� -- __ - -- _ _.� Flow _requency Analysis Time Series File:a-predev._s_` Pro�ect Location:Sea-Tac ---Annual Peak Flow Rates-- ---F��w rreqser�y I;r.a=ysi�----- Flow Rate Rank Time of 2eak - - Peaks - - Rank Returr, Pro� (CFS) (CFS) Period 0.190 2 2/09/O1 18:00 0.263 1 100.00 0.99G 0.067 7 1/OS/02 16:00 0.190 2 25.00 0.9Er� 0.155 3 2/26/03 3:00 0.155 3 10.00 0.900 0.025 8 6/26/09 2:00 0.151 9 5_00 O.BOU 0.093 6 1/OS/OS 8:00 0.137 5 3.00 0.667 0.151 4 1/18/06 20:00 0.093 6 2.00 0.500 0.137 5 11/24/06 4:00 0.067 7 1.30 C.231 0.263 1 1/09/08 9:00 0.025 8 1.10 0.091 Computed Peaks �.239 50.00 0.980 Basin `A'-Developed Basin Conditions _ _ _ --_ - - --------- - - - - I � land Use Summary •.� -��' � � -- ------Area —.� ---�- � Till Forest 0.00 acres Till Pasture 0.00 acres Till Grass 1.35 acres Outwash Forest 0.00 acres ';si Outwash Pasture 0.00 acres ��: Ouiwash Grass 0.00 acres i'' Wetland 0.00 acres Impenrious 1.77 acres ; Total � I �',; 3.12 acres , ; Scale Factor : 1.00 Hourly Reduced I�i _ _ _ _ _ Time Series: A-Dev.ts� »'; I�' ----_ - Compute Time Series � — ---- ---_ --- - Modify User Input , File for computed Time Series [.TSFJ ` ____ -_-_' _ -_ _.. l Flow Frequency Analy�i: Time Series File:a-de-.�.-. - Project Location:Sea-Ta- ---Annual Peak Flow _��_-: - — 1�_,o - ------ Flow Rate Rank Time of Peax - - Peaks - - Rank Return Proc (CFS) (CFS) Period 0.550 6 2/09/O1 2:00 1.12 1 100.00 0.990 0.940 8 1/O5/02 16:00 0.678 2 25.00 0_9E( 0.663 3 2/27/03 7:OC 0.663 3 10.00 0.9�_ 0.966 7 8/26/04 2:00 0.582 9 5.00 O.BCO 0.564 5 10/28/04 16:00 0.564 5 3.00 0.6E- 0.582 9 1/18/06 16:00 0.550 6 2.00 O.SC��i 0.678 2 10/26/06 0:00 0.966 7 1.30 0.231 1.12 1 1/09/08 6:00 0.440 8 1.10 0.091 Computed Peaks 0.9;5 �G.�O 0.980 Basin `A'Pond Desipn Facilitv Defrnition Type of Facility: Getention Pond Side Slope: 3.00 H:lV Pond Bottom Length: 65.00 ft Pond Bottom Width: 55.00 ft Pond Bottom Area: 3575. sq. ft Top Area at 1 ft. FB: 10075. sq. ft 0.231 acres Effective Storage Deptn: 5.75 ft Stage 0 Elevation: 511.25 ft Storage Volume: 34740. cu. ft 0.798 ac-ft Riser Head: 5.75 ft Riser Diameter: 12.00 inches Number of ori£ices: 2 Full Head Pipe Orifice # Height Diameter Discharge Diameter (ft) (in) (CFS) (in) 1 G.00 0.88 0.050 2 4.35 1.88 0.113 4.0 Top Notch Weir: None Outflow Rating Curve: None Staqe/Storaae/Discharpe Performance Stage Elevation Storage Discharge Percolatior. SurP Area (ft) (ft) (cu. ft) {ac-ft) (cfs) (cfs) (sq. ft) 0.00 511.25 0. 0.000 0.000 0.00 3575. 0.01 511.26 36. 0.001 0.002 0.00 3582. 0.02 511.27 72. 0.002 0.003 0.00 3589. 0.03 511.28 108. 0.002 0.003 0.00 3597. 0.09 511.29 149. 0.003 0.004 0.00 3609. 0.05 511.30 180. 0.004 0.005 0.00 3611. 0.06 511.31 216. 0.005 0_005 0.00 3618. 0.07 511.32 252. 0.006 0.006 0.00 3626. 0.17 511.42 618. 0.014 0.009 0.00 3698. 0.27 511.52 992. 0.023 0.011 0.00 3772. 0.37 511.62 1373. 0.032 0.013 0.00 3896. C.47 511.72 1761. 0.090 0.019 4.00 3921. 0.57 511.82 2157. 0.050 0.016 0.00 3997. ' 0.67 511.92 2561. 0.059 0.017 0.00 4074. ' Q.77 512.02 29'72. 0.068 0.018 0.00 4151. �I 0.87 512.12 3391. 0.078 0.019 0.00 4229. 0.97 512.22 3817. 0.088 0.020 0.00 4307. i 1.07 512.32 4252. 0.09B 0.022 0.00 4387. 1.17 512.92 4695. O.1G8 0.022 0.00 9967. 1.27 512.52 5146. 0.118 0.023 0.00 9547. 1.37 512.62 5604. 0.129 0.029 0.00 9629. 1.47 512.72 6071. 0_139 0.025 0.00 4711. 1.57 512.82 6547. 0.150 O.C26 0.00 4794. 1.67 512.92 7030. 0_161 0.027 0.00 4878. 1.77 513.�2 7522. 0.173 0.028 0.00 4962. 1.87 513.12 8023. 0.184 0.028 0.00 509�. 1.97 513.22 8532. 0.196 0.029 0.00 5133. 2.07 513.32 9049. 0.208 0.030 0.00 522C. 2.17 513.42 9576. 0.220 0.031 �.GO 530�. 2.27 513.52 10111. �_232 0.031 0.40 5395. 2.37 513.62 10655. 0.245 0_032 0.00 5484. 2.47 513.72 11207. 0.257 0.033 0.00 5573. 2.57 513.82 11769. 0.270 0.033 0.00 5663. 2.67 513.92 12340. 0.283 0.034 0.00 5754. 2_77 514.02 12920. 0.297 0.035 0.00 5896. 2.5� s'_�.12 13509_ C.31n n.�i35 �.n0 593�. �. - �_-.�� ' - ,. " ._�9 �: �� . _ �-. Staae/Storaae/Discharpe Performance(continue. Stage Elevation Storage __. �:..._�;:.: _,.�.:. _.._�_.. . ___ _ (ft) (ft) (cu. ft) (ac-ft) (cfs) (cfs) (sq. f_ 3.07 514.32 14715. 0.'s38 0.036 0.00 612� 3.17 514.42 15333. D.352 0.037 0.00 62'_= 3.27 514.52 15959. 0.366 0.038 0.00 631y 3.37 514.62 16596. 0.381 0.038 0.00 691�� 3.47 514.72 ??291. 0.396 0.039 0.00 650^. 3.57 514.62 17897. 0.411 0.039 0.00 6609. 3.67 514.92 16562. 0.426 0.040 0.00 670�. 3.77 515.02 i9237. 0_442 0.040 0.00 6801. 3.87 515.12 19922. 0.457 0.091 0.00 6901. 3.97 515.22 20618. 0.473 0.041 0.00 7G01. 4.07 515.32 21323. 0.490 0.092 0.00 7102. 4.17 515.42 22038. 0.506 0.092 0.00 7203. 9.27 515.52 22763. 0.523 0.043 0.00 7300'. 9.35 515.60 23351. 0.536 0.043 0.00 738fi. 9.37 515.62 23499. 0.539 0.044 0.00 7409. 9.39 515.69 23697. 0.543 0.046 0.00 743G. 9.91 515.66 23796. 0.546 0.050 0.00 7450. 9.93 515.68 23995. 0.550 0.055 0.00 7471. 9.95 515.70 24095. 0.553 0.062 0.00 7492. 4.47 515.72 24295. 0.557 0.069 0.00 751�. 9.99 515.79 24396. 0.560 0.0�8 0.00 �534_ 4.51 515.76 24596. 0.564 0.082 0.00 �554. 4.61 515.86 25307. 0.581 0.093 0.00 7659. 4.71 515.96 26078. 0.599 0.102 0.00 7765. 4.81 516.06 26860. 0.617 0.110 0.00 7871. 4.91 516.16 27653. 0.635 0.117 0.00 79?8. 5,�1 516.26 26456. O.o53 0.124 0.00 8085. 5.11 516.36 29270. 0.672 0.130 0.00 8199. 5.2= 516.46 30095. 0.691 0.136 0.00 8303. 5.31 516.56 3093i. 0.710 0.141 0.00 8413. 5.91 516.66 31777. 0.730 0.146 0.00 8524. 5.51 516.76 32635. 0.749 0.151 0_00 8635. 5.6i 516.86 335�4. 0.769 0.156 0.00 879�. �.71 516.96 34385. 0.789 0.161 0.00 886C. 5.75 517.00 34740. 0.798 0.163 0.00 B905. Stape/Storape/Discharpe Performance at Siqnificant Storm Events Hyd Inflow Outflow Peak Storage Target Calc Stage Elev (Cu-Ft) {Ac-Fti 1 1.12 0.26 0.73 5.89 517.14 36042. G.8?7 2 0.55 ******* C.16 5.74 516.99 34679. 0.�9n 3 0.55 ******* C.13 5.18 516.43 29888. 0.680 4 0.66 ******* C.14 5.31 516.56 30908. 0.710 5 0.58 ******* G.09 9.57 515.82 24980. 0.573 5 0.34 ******* 0.04 4.23 515.48 22492. 0.515 ? 0.44 ******* 0.04 3.71 514.96 18831. O.S3�' 8 0.47 ******* G.03 2.69 513.94 12483. 0.�=;7 KCRTS Routinq lnsbuctions Route Time Series throu,:� raci Lt, Inflow Time Series File:a-dev_�sf Outflow Time Series File:A-RDOut _aflow/Outflow Analysis Peak Inflow Discharge: 1.i2 CF� at E:GO on Jan �+ '� 'i�ar � Peak Outflow Discharge: 0.727 CF� at =�:Ou o� .?an 9 :n "iea= � Peak Reservoir Stage: 5.69 Ft Peak Reservoir E1ev: 517.19 F� Feak Reservcir Stc•rage: 3E042. C1-Ft . 0.82; �c-Ft Duration Compaiiso» Duration Comparison Anaylsis I Base File: a-predev.tsf New File: a-rdou�.tsf Cutoff Units: Discharge in CFS -----Fraction of Time----- --------Check of Tolerance----- Cutoff Base New oChange Probability Base New $Change 0.046 I 0.77E-02 O.SlE-02 -33.9 � 0.77E-02 0.046 0.043 -8.0 0.057 � 0.56E-02 0.93E-02 -24.1 � 0.56E-02 0.057 0.049 -23.7 0.068 � 0.93E-02 0.38E-02 -13.5 � 0.43E-02 0.068 0.056 -18.4 0.08C � 0.33E-�2 0.34E-02 2.0 I 0.33E-02 0.080 0.081 1.7 0.091 � 0.25E-02 0.24E-02 -3.3 I 0.25E-02 0.091 0.089 -1.5 0.102 � 0.18E-02 0.19E-02 9.5 � 0.18E-02 0.102 0.103 1.7 0.113 � 0.�2E-02 0.15E-02 26.7 ! 0.12E-02 0.113 0.121 7.4 0.124 � 0.90E-03 O.liE-02 27.3 I 0.90E-03 0.124 0.131 5.6 0.135 � 0.60E-03 0.66E-03 i3.5 I 0.60E-03 0.135 0.139 2.8 0.146 � 0.36E-03 0.29E-03 -18.2 j 0.36E-03 0.146 0.195 -0.8 0.157 � 0.16E-03 0.15E-03 -I0.0 ; 0.16E-03 0.157 0.156 -0.7 G.168 � 0.11E-03 0.33E-04 -71.4 � 0.11E-03 0.168 0.159 -5.3 0.179 � 0.82E-04 0.16E-04 -80.0 I �.82E-04 0.179 0.162 -9.8 G.190 � G.16E-G4 0.16E-09 0.0 � 0.16E-04 0.190 0.203 6.9 P�aximum positive excursion = 0.016 cfs ( 8.3�) cccurring at 0.186 cfs on the Base Data:a-predev.tsf and at 0.203 cfs on the New Data:a-rdout.tsf Maximum negative excursion = 0.015 cfs (-25.0$) cccurring at 0.059 cfs on the Base Data:a-predev.tsf ar_d at 0.045 cfs on the New Data:a-rdout.tsf , __ _ - �- , �Paused•Duration knalyzis-KCRTS��-, �- :'�+�,R� �`o� .J-.._� c.i 0 A-Target dur •. w ao "`--s_� - � � s R - ±► �n '�._ o � �� s • (n N ♦ lL U o � � i � ! N U � \� � O Q O 1 + f � CO + O O � 00 � c+ 0 0 0 � o 0 ��'', � _ � � i . � i 10 f0 10 3 10 2 10 � 10'' , Probab�h[v Exceedence ; . DO ti � m Basin `B'— Existinq Basin Conditions I'I � ___ _ _ _ _ ---_ _ __- - - '>�=ir �>:�_ �� Land Use Summary � � ��!, ' Are a — ---�— Till Forest 2.46 acres Till Pasture 0.00 acres Till Grass 0.00 acres � Outwash Forest 0.00 acres 4� Outwash Pasture 0.00 acres �� Outwash Grass 0.00 acres �'� Wetland 1.38 acres ''' Impervious 0.00 acres Total �i 3.84 acres � j Scale Factor : 1.00 Hourly Reduced �� Time Series: B-Predev.ts�j » , - ------ __ �� Compute Time Series il Modify User Input �— _ __ _--- ------.. __._ _- -- � File for computed Time Series [.TSFJ Flow Frequency Analysis Time Series Fi1e:b-predev.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) Period 0.334 2 2/09/O1 15:00 0.446 1 100.00 0.990 0.065 7 1/OS/02 16:00 0.334 2 25.00 0.960 0.310 3 2/27/03 8:00 0.310 3 10.00 0.900 0.010 8 3/24/09 19:00 0.173 4 5.00 0.800 0.083 6 1/OS/OS 8:00 0.122 5 3.00 0.667 0.122 5 1/16/06 21:00 0.083 6 2.00 0.500 0.173 9 2/O1/07 0:00 0.065 7 1.30 0.231 0.446 1 1/09/08 9:00 0.010 8 1.10 0.091 Computed Peaks 0.408 50.0� 0.980 Basin `B'-Deve/oped Basin Conditions __ -- -__ _- ---- - ___ _ Q Land Use Summary '_� �� ! �°�� --- ------- -------------- ' Area ---- -�_ ' Tiil Forest 2•22 acres ' Till Pasture 0.00 acres Till Grass 0.00 acres Outwash Forest 0.00 acres �i Outwash Pasture 0.00 ac�es �, Outwash Grass 0.00 acres ��' Wetland 1.38 acres �' Impervious 0.00 acres Total 3.60 acres Scale Factor : 1.00 Houriy Reduced Time Series: B-Dev.ts� »; �� ---- -- Compute Time Series ; _ _ _ - - - --- ---- --_. -- _ _ - _ III, � Modiiy User Input � - _ _ _____ _____ _-- ---- —��_ _.___.._ ------_ _ I File for computed Time Series [.TSFJ � , —---- ---- - Flow rrequency Analysis Time Series File:b-dev.ts' Project Location:Sea-Tac ---Annual Peak Flow Rates--- ----'r� �x r L:;q�e:�_; r:,�_�-si�--- - Flow Rate Rank Time of Feak - - Peaks - - Rank Return Prcb (CFS) iCFS) Period 0.319 2 2/09/O1 15:00 0.427 1 100.00 0.95 0.060 7 1/OS/02 16:00 0.319 2 25.00 0.96" 0.301 3 2/27/03 8:00 0.301 3 10.00 0.9C:: 0.010 8 3/24/09 19:00 0.165 9 5.00 0.8G� 0.077 6 1/OS/05 5:00 0.110 5 3.00 0.66, 0.110 5 1/18/06 21:00 0.077 6 2.00 O.SC: 0.165 4 2/O1/07 0:00 0.060 7 1.30 0.23= 0.927 1 1/09/OB 9:00 0.010 8 1.10 0.09= Compc`ed Peak= 0.39' S�.00 0.99� ' fl WA TER QULAITY CALCULA TlONS ', ,,I ,I i Wetpool Sizing Calculations II Per 2009 King County Stormwater Management Manual Project Name: Olympus Vilia Project Number: 1 J7-033-11 Facility Description: Basin 'A' Wetpooi i Step 1: Identify required wetpool volume factor(f). f= 3 Per KCSWDM 6.4.1.1 Step 2: Determine rainfall (R)for the mean annual storm. � R= 0.47 Per KCSWDM Fig. 6.4.1.A Step 3: Calculate runoff from the mean annual storm (V�)for the developed site. V�_ (0.9A; + 0.25F+t9+ 0.10A�+ 0.01,40) x(R/ 12) li where: A; = Impervious Surface Area = 77.101 � II At9 = Till Grass Area = 58,806 � A� = Till Forest Area = 0 s � Ao = Outwash Area = 0 s.f. V�= 3,294 c.f. Step 4: Calculate required wetpool volume(Vb). Vb= f x V� Vb= 9,881 c.f. i � � � � � � � I� � � I� 3 0 0 � v � E7NW - 11T 23N R05E NW 1/4 �--- __.�,._ � �. l �- � _ - _ �,� �, .5,�. _ \\ f �---- . \� � � .---- . � � � _.� ,,� ' � � � ` 1 � 1I � > � � �. � � ��,��, l \ —__ � -'� 1��\/�� M�� {��_-- � 4�+ � ; `-,---- _, -�� _ � , �-_- ! . � �eszo �:__i____ iesss ` --`-� _ - - � NE 7 - � -- _ ezo t.. . � _ �� esei _ _ - — � � , -- rhCr I �/� , ,es� ,e5aa )' �esso � �� . � 1 _ � , � � - _ ; _ . — ___ -- . 1 7 1E519 _I� _'. __._ . . � �'— —_ _,\.� � _ _ __ . _�_ � _—_. �� , _ '_�+` � ~ � '_' � . __ ' O - —_. \ �. 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'--N�i l�f 1-�- - '"_. 11565+ - ��-�� . ..-,nti�s � __--� ��o� iesse__�; ��es35� ��-„ � . . ��lj� �oaes � ... i 'iie�r--�' ---- - -�` � � � �--- r 2iu�------------�1- •._-----•---------- 'b N - �eeo iner-- �0 Sei neet- �na� �5�-128tb-Sr--- --- u t�r s. -- -- --.. .. ._l �c�e � . '.y ��\ ~'� . ? _ � 10991 1pgQ� - �� ,�_' �. � . .. \ . .. �� . �—OC .�'�a10bBA. ',U_ �u, - � ��. , . � V � � ,��.�q� � ,� k � , � '�- � ' ( � -- 2+� 4r.� 1 i r ,. , •_� � . �.: . . �' ;� - �,:1�ebs�y � � � t�4i0� o R � ..�.e.. �. tizas �_ `� ' { �: ;:, ":;r . _- _ _ . z3t , _ _ .z�- �C'� i ��,�� ..' .' �.y�k��— ~ ��i : � 17 '�� ., � ii (��1DD] i.,�: �,, ,��_f NiJ7� / ..._ � ,��-i � n � 17567 , � Cedar Rivcr l��l akei�Samm�nrush Trail Site� , � � _ . - -- --- ,7w,+me� ; 1vS3rd PI � _._._ °°�°\� I A f , ! ---� I—� - I- � � i- . . � , i F7NW - 14T 23N R05E NW 1/4 : , '°`3 ""W 0.5 � 1 Structures Conveyance Flow Control Facillty � �'--I t � " ��- � A' zs: �a -� - Renton Renton Rento� a, S ez5 ; se j �` '9- � ' � -fi° s �5 j City of � -, ;� m Inlet —•� PiPe � Pond �s aaae,�,s�., u� y�� I^ �::.i�:,.l'��:./J �3 (�� ( 4' `C2 C3'" ��, �g C75 C8 `� tia \.�.. • TYPe� Cutvert � Tank . - �. O T 302 .:•q. 1'. ':5308; 5 OS 03 �0Y YPe 2 Private � Vault o,. � o ,03 7 5�� • � Veu1t --- P,� Private(�P'Prefix) _�„ A3,z ; � � � 3- _,� S u rFa ce Wate r U ti I ity , � , ,E e �oe s3,o „ Q Pump S t a Uon Cu lvert � Pond i 5 e Ee � Asset Inventory Prlvate('P'Prefix) King County � Tank FZ3 - 5�58 � 1 ■ Inlet —► Pipe � Vault - __ - Fa 323 3 6320 5321 323 5324��- M a 1 2 O O 9 � � TY�� ' CU�V9R King County 3 GA� G5 • TYpe 2 WSDOT � Pond H?� 2 - H s32e ssza s � z �' zs ■ Vault -� Pipe � Tank �1 I HS 8 � HB_ 5 32 � ,� 3 0 150 300 600 King County -- Cu�vert Miscellaneous 12 13 �� ir ,a ■ Inlet Other � ��Renton Limits Zo� 8 5 52 Szp' ss� Feet � Jt J2 3 JS - J7`�- J ■ Type 1 �Channel pqq _ _ � �i -- �-� 211 212 `�� 5209 210 . 5211� - 212 I O Type 2 Ditch j . Quarter Section -- °`S°'a`me�: 11 T 2 3 N RO 5 E S W 1 /4 WSDOT Flow � park/Open Space This inventory iMormation is schematic onty. It was �i compiled from numerous sources. It is the best TYPe 1 Flow Control -- - �on cor,cour information available at this time and should be O Type 2 �� InfilUatiOn used tor general guidance only. The City of Renton is not responsible for errors or omissions. When this � Bioswale information is used for planning,design,and/or construction purposes,users are to field verify this 5311 information. OFF-SITE ANALYSIS DRAINAGE SYSTEM TABLE I SURFACE WATER DESIGN MANUAL, CORE REQUIR�:MENT#2 - . OLYMPUS VILLA BASIN A(wESTEiu,y) Basin: Cedar River Subbasin Name: Maplewood Creek Basin Subbasin Number: Symbol Drainage Drainage Slope Distance Existing Potential Observations of field � Component Type, Component from site Problems Problems inspector, resource I Name, and Size Descri tion dischar e reviewer, or resident � see map Type: sheet flow,swale, drainage basin,vegetation, % '/.ml=1,320 ft. constrictions, under capacity,ponding, tributary area, likelihood of problem, ' stream,channel,pipe, cover,depth,type of sensitive overtopping,flooding,habitat or organism overflow pathways,potential impacts pond;Size:diameter, area,volume destruction,scouring,bank sloughing, surface area sedimentation,incision,other erosion A Channel Flow Open grassed ditch along 2% Sta 0— 8+00' None None None observed Nile Ave flowing south Ditch needs to be together with several maintained driveway crossings with 12"culverts. g Pipe Flow Across entry of 3% Sta 8+00'- None i None � Upstream end open and clean—no development at the Int'x of 9+50' apparent capacity problem. Nile Ave and NE 6`�Street —flow continues south C Channel Flow Flow continues south along 5% Sta 9+50' - None None None observed east side of Nile Ave NE in I5+00' open ditch and driveway cross culverts j� Pipe Flow Flow cnters storm drainage 4% Sta 15100'— No problem None None observed at time of site visit system of resent 23+00' appear at inlet of Flow continues downstream to the development and conveyed storm pipe—or west along NE 4�'Street to the Int'x of Nile Ave visible at and NE 4`�Street. downstream end _ _;�,�Y � ' �. ,_ . - --------- � � . , ,� � ��- - ; -- -- - ' '� - ------- � , i �� ----� ��. �� ., _ � :; �+ , --- . � { `. � v r _ �M � -�. ., �,� b� � � s. � b{: �j� .. �..0 -, � +.� ' � t �{ � �-t°'Y' .._ . i �'+s / ' � I�� .�} t x.f��• ' .. . - fi�"�,, `•�� J.:, .. , . r} .. � , >atr.: �� >",�. � .tr: . � , n�: _�..+s-� �y _. '� _*,.< t.�'�ic�:_ _ _ i —_ _____ ---- j '•�rd%�`i�.��`' �.., _s•_ x,�,c -.� _ T . n �.� ,a , ? �j� ri i+r��tf� ''��'+�'r 1�," +t`a - Y^� ..�.- t s�*^ �. �} �' r+�'_ f, ey "`` . si ,�,t �l.£s �r�� ec+h-��v 'i �� d -e'�. �-��#'?,"` o �i.t � � r.i �.� �. �. - �x. �'��+'� A,' S�'::, i :.:j.§" =�'+�-:�` I> � "��'.du. '� - - b- `-u, - -� .._ -- _..,x�^°�': .h�. :.-. . .. . . ... . .. . . . .. . Photo 1 Site looking East from Nile Ave NE �� ..:-, . �:�s.. t � , , � � .,. .�� , ' °; : ,�i;�_.. � s , - - � f . �� r �;_ - •' �: - � r h K�' c � ,:s . � _ , f- . . :. 'y.i,��C '��.��ia � �"!`{ '! . _ � 4 �r: .... ��Q S'�I A - '�r" •�r}. -sE .'.Y� ��. � c � � V�_� . � i �, �•D � • � _ wr� ._�C�A> � � . �� 7r- '"�'.[ _ ':��' •`?�''a - � a 3�� : �' ,' -�.�;�,.� .y j'.:_ �; a.1.�: � , ..� . ._ �.rt:Pt`.'+-...F�4r - �-.��.'r� . . � ,. _ --_. Photo 2 Site looking South along Nile Ave NE . t, . ` � � , i�' �J •�� . + •. . .M�� F� .. �'. ;'J;� ''. ' _v. . .�Y �. L - ;p: � '�` ! 4��ir _ '+ :��,��'�'1 f„� y � ... �; � :� y�f i . `�. � ,. . . . , - �•_ , / ' _ ' • � ' � ' �}':�R'• ' aS {1 . ' 'l'�-��.,.�: ' ' . `1.; ��1� - . ' ..3�: ^�aR'♦ ,1�` �••�..�`rt�'. ..e/�..r.� /�1'�[,� ^'r3�. �V • / / , , � I ' / 1 1 1 � I < ��. ti �9 �. _.,L.. -� 9 . _ r ' ..'��, 1 � l�i-. ir- '' � � .i�� y '�,e ,. ,�, �:: . �. � �� ' •. �,� �y� r �_'^'��VG:� 1 N �, . (: 4'-..•" .1�:`y.. �11". � ,.�4; ':n�t . . �� - .t•?L v.C "�'�a s � _ - i ,� � .}?,r. t „�y,,. ;s..a .. >- 2ti. w ¢,� - . ,�a. s� -{��Z.. �_ I . . ' . .. � � ' ' � � . �. � . ., '{'s�, �� ' � `�, _ � .... .. « y .�� - ;. ��. � �i.�A�r� �� - �� ,�'' � + e.,_ . . . ' . � . �f.;: .. . ;�; � , � �.i . .. . . . . _s J- � . ' �... ., , . , .' . . . . :s t.0` .�..�7(�},� y +,� T.T`"_ � � r�_ y�' � •} 'i.�..-?.�,� .+�`• :. � � * .. �t5�.:+:T~� l� �.' . . . _ �^ t- ' �f.�;l. �-!�_ ' . /':" .` w�. .. (�Y+t'••''� a ` r . 'P �� ?�sti'�[ . . � . . �-r�%'R'''��'i�}r'� r - - ,.r.-�t. '�'T'��+�"• - � • , � / � ' • � . 1 1 " � � . � � � . �' � } � , � ' � �i = �� ,'� ��-� -�� ,� ��°� : -�_,� � ,a �� , a �� F�'E �.. �� :� .� � �� , , �: -,�� _ '_-" -. -.-t �:,... _ , v„�.,r ��..--T�� '�� ,:� ��Y . . , �� -;� � . r� � �� ,�� . �r, f:`�; ' i I � � _ i� �'� �; i � �� ..=h 4 h , .j �: rd' j ,g,.. .i` .'^� _.. �� .,R� ��'r`-• �� Y��-*." �, ' �-� - . �?� �`'�'--" _ . . . . . .. . - �. . .. . .. :�a . �- .. �f :�.�. ..�-� � '�� r.� .�� .,��' .. � � r._� � . �y'F � �' �'Y'. ._ ��. �v P.. . .. .w _.. s . �S_'Fv✓_. ..r ��.�. , .. _ � �� . .- .. . Photo 5 Intersection of NE 6th street and Nile Ave NE ��-�� Y ��, � .� ; , `� � � � � �y. ,��': i� � � � . � ,� . . • _�- � ,,:,._ �� ° . �. y � a . `F � � ; �' :;� �'� - � � : :�' �� ` $ �� I �� .r`" � ' ` _ � .`� � � - � �. —(_•� .. � 1. � 4, �A� � �� ' � � .�.: ^�r`''�a�F"�� n ^�. - _ �'.c`' `^�� Mt �.'�� *3. } ,'�i i� - `��' �i. ♦d'. Z,�, R �~'�i. *'�+- } 4.' • . . ,. � .. .F:�.. �� „.,"r�'.. t ��' *.� a� � ' + t ti��k� y�� " . , �. , �� Y � � '� �,3,. -� t- .. „ . . _ _ . . __ . - _ � : . �_ ��,:,��,. �� y � (�t�}'t. R , �'. �,�,�° �� .ad� .,`... � �.. . ,e ; �'k� � .� �� - .w ��1 � 'r a t � �`� �. . �� 4�'�} �t fi� �� »�� , ., dz' ... r . . ' �, �.. j��, '. .. * �.' __. 6 -�. 'r� ,�f.� �l � �x�4;`-��~ � s .. ., _: �i`�6t'��'y� �..3i A��„.;. ..:� .�'_ ,Y"� , �'a� � /�,.ft'�4....-.. 3v Photo 6 Downstream of intersection �_ � ,, � . �.. ._ ' ' �� . fi , � � + Y r` : � : _ t :. � , : � �, t . �, , � � �: , ,�, �; �.�- .. � ��.., �� `` �' _ �' *E F, t ' ,,�µy, r.�- !� � � . � :.;� t.#: , .. �-' � _. >i ^ � s 3 �i ��"� ' ��> �� , , s = � .—.. �� . l,_ � . ' 4_,;,r��''�.. £ -. i� . ..6, 7'i. t �,'%.. ��'�.�� ,��Q �:t� �� -� , , , , � . � .. �. ;� � , . .a �. � . .�� _ �� ,�� . g , s� � z �. ,. � ,�.� . g E , _ .__. ,: �. . �a� .,_ _�. . . ; - __ � , .. _ ._ � . . .�- ��:._,�_�: =y � "Y, af`' . .. , ; �.. �; .. . .,_ . ..._. - . _ ...=.. . ..... .� . P -e- ., ,�,.�.....: ,._� ."_. .. ,i. . '.`�hv"_ . ,. Photo 7 �'as�� A��=� ?'�T�' �.�� ina �T�rth �r�� vc;�� ;�t��,- OFF-SITE ANALYSIS DRAINAGE SYSTEM TABLE � SURFACE WATER DESIGN MANUAL, CORE REQUIREMENT#2 OLYMPUS VILLA � � BASIN B (F.ASTERLY� Basin: Ccdar River __ Subbasin Name: Maplewood Creek Basin Subbasin Number: Symbol Drainage Drainage Slope Distance Existing Potential Observations of�eld Component Type, Component from site Problems Problems inspector, resource Name, and Size Descri tion dischar e reviewer, or resident see map Type:sheet flow,swale, drainage basin,vegetation, % '/.ml=1,320 ft. constrictions,under capacity,ponding, tributary area,likelihood of problem, stream,channel,pipe, cover,depth,type of sensitive overtopping,flooding,habitat or organism overflow pathways,potential impacts pond;Size:diameter, area,volume destruction,scouring,bank sloughing, surtace area sedimentation, incision,other erosion E Sheet Flow Class 2 Wetlands and 0.50% Sta 0—7+00' None None None observed buffer area. Wetland outlel bird cage well maintained � Pipe Flow 24"minimum pipe�om 1% Sta 7+00'- None None Water in pipe same elevation as outlet structure#18575 to 11+50' No apparent pond pond #P1194. Water overflow or surface within pipe same as capacity issues ond. ('� Pond Flow Open Pond control facility flat Sta 11+50'— None None None observed for Maureen Highlands 13+50' Outlet structure from pone well #P1194 maintained/overflow structure o en and cleared j-� Channel Flow Open Channel along east 0.50% Sta 13+50'— Channel not Blockage of swale Able to view channel behind side of Maureen Highlands 26+00' maintained— could cause pond houses as possible—several trees Plat. overgrown with #P1194 to not and heavy bntsh block view of small alders and function correctly bottom of channel. Outlet blackberries— - channel needs to be maintained to water standing in allow for pond to function as- bottom of ditch desi ned --j• ^� � aih'.�,. -a� �'� ",�� , � s . ,"i l� . � �r��„ •.' ` . � '� � ..� . f�� ' r � ';'�� ;� 4. 1, . ,;�r � � ` �, '�a'', i r �1 ;e ; ��'� `, � � �.� � 'y �;�J , � •s -� �.. �., �' r�:. s,� �. , k ��'� �� f �° . � �� i}.. l �'t�i�� .;�,r �<�r d�'yr��' ,,,� dz� '�.'�5��.�. �' �. � "�' ` � � r �.�r •:�}�"'�` - , t�q',� t t �. 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II � W Z � � V V � � W I � � ' � City of Renton TECHNICAL INFORMATION REPORT (TIR) WORKSHEET I Part 1 PROJECT OWNER AND Part 2 PROJECT LOCATION AND PROJECT ENGINEER DESCRIPTION Project Owner: Camwest Olympus villa, LLC Project Name: Olympus Villa Address: 9720 NE 120�' Place Kirkland,WA 98034 Location Phone: (425) 825-1955 x-142 Township: 23 North �i Project Engineer: Darrell Offe, P.E. Range: 5 East Company: Offe Engineers, PLLC Section: 11 Address/Phone: 13932 SE 159th Place � Renton, WA 98058 425 260-3412 Part 3 TYPE OF PERMIT Part 4 OTHER REVIEWS AND PERMITS APPLICATION X Subdivison � DFW HPA ❑ Shoreline Management ❑ Short Subdivision � C COE 404 ❑ Rockery ❑ Grading i i ❑ DOE Dam Safety ❑ Structural Vaults ❑ Commercial ❑ Other ❑ FEMA Floodplain ❑ Other ❑ COE Wetlands Part 5 SITE COMMUNITY AND DRAINAGE BASIN Community North Renton Drainage Basin Maplewood Creek/ Cedar River / Lake Washington Part 6 SITE CHARACTERISTICS ❑ River �' Floodplain X Wetlands Class 2 ❑ Stream J� Seeps/Springs ❑ Critical Stream Reach � High Groundwater Table ❑ Depressions/Swales � Groundwater Recharge � � Lake � Other ' � Steep Slopes � Part 7 SOI LS Soil Type Slopes Erosion Potentiaf Erosive Velcoties AgB 5— 10% Possible i ❑ Additional Sheets Attached Part 8 DEVELOPMENT LIMITATIONS REFERENCE LIMITATION/SITE CONSTRAINT ❑ Ch. 4—Downstream Analysis _Restrictive Impervious Areas � _Dispersion ; � � ❑ Additional Sheets Attached � Part 9 ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION AFTER CONSTRUCTION ❑ Sedimentation Facilities C Stabilize Exposed Surface , ❑ Stabilized Construction Entrance C Remove and Restore Temporary ESC Facilities '� Perimeter Runoff Control C Clean and Remove All Silt and Debris � — Clearing and Grading Restrictions C Ensure Operation of Permanent Facilities _ Cover Practices C' Flag Limits of SAO and open space � Construction Sequence preservation areas � ' Other ❑ Other � � Part 10 SURFACE WATER SYSTEM ❑ Grass Lined �� Tank ❑ Infiltration Method �f Analysis Channel 2009 KC Manual C Vault � Depression — — � ❑ Pipe System KCRTS C Energy Dissapator � Flow Dispersal ❑ Open Channel Compensation/Mitigati C Wetland � Waiver on of Eliminated Site ❑ Dry Pond [ Stream �� Regional Storage X Wet Pond Detention Brief Description of System Operation: Catch basins within curb line of street, conveyance to wet pond on westerly side of properly The discharge will into the existing roadside ditch along Nile Avenue NE Facility Related Site Limitations Reference Facility Limitation � i i Part 11 STRUCTURAL ANALYSIS Part 12 EASEMENTS/TRACTS —' Cast in Place Vault —! Drainage Easement — Retaining Wall — Access Easement _ Rockery >4' High X Native Growth Protection Easement j — Structural on Steep Slope — X Tract i _ Other � ❑ Other ; Part 13 SIGNATURE OF PROFESSIONAL ENGINEER I or a civil engineer under my supervision my supervision have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attachments. To the best of my knowledge the information provided here is accurate. l_ 1� �• 2G � _ � � , � �� _J Signe ate V � V H � � � ____ i !,y'(• ��I',;Il1u,�,< �� ,ll'r};�d�.. �.�„K.n �. ;' ,. ___. ..._,. r i ---- -- -"'"�x � '�i' � _ r• __ Jdl__... ..ul� I ! ' .I''. . __ �- - -�. - — "___' _" _ ._ . .._� �•�.. .., � . ti...:ru*�m�-^'�_.. ' � . . _ _'_. __ _ _ ._ '' '_— � v.� �.. . �..."'_.\�d� ',A.� � ..0 .mr _ ' � � �nu I --" .� )I I r.__ ._�...� -:bT-_ _ �'_.__ - .'a.i � _ , I __ �- - �i �,i{" , �., �N°y,a�`° ,:« � .r,a � i " l f�..---- �.� ._ . � �' � � - ,Ma+�. i i �,' i ��,.., `" i � `—� r---="==--�e i •`/ i r---- w dcN cuee rnae cnnre I � � 1 I I � � � F�-7 � 1 �o.,• to�° �Y� I� I �-eie¢sro. � �EP-2 i �� ,w}�� e i I EP•BAi � � I I � I -�� I ie-sis.n.�:• r.�.. lu,EP .. �EP-4A � �m w I I e I � � � i � � ;,� i _ ,-, r i r EP-7D EP-7 i � • -_ � �/F.eizxo . I ioai ., ., 1 i EP-S� + � ,F,,, W� I ._.�_,_ �� ..,..�< �--- ■e �s��Y� ----� � yu.0 i �� P-7A � � i----- EP•9 �e�u..,.u"°� � ..� / o-si'a�,a � ----- ------ --� I �Y EP-7C �u�l 1 � � ,... � A � .,� � ie -e�a. -J I---__ i - � I r . I � � ' � a-°uioo .ad'� �---m-Ssv.ca - I� .. .�� -- . w,,, - s F"'� , �^ O EP-1 . P�� ie axi:ee eZ� I .�.. ��,.n,��,. ' _`._ "•-- �r—� ;'� r' __ '_"_".�F a�.� '� ...�_ .. ... ui �. I�"_'_ W11 � wdI� - ts. _i .�o� _ °' E - _ _�� ' � SFe SHEET� Jr. ;�„� �.:�� j � �._.___ �.=51n_._ ^��'PF... _��_._��....�_...__ � _- _ - _ •'� E � � _ � . . ____; .._ � - � r�,.�s�r��$�t'.Rpoe -.�u, - - _ _ - . .-- -i kx_�e-�-.._'.�--�__ ,EP$—- - - • - �� / r �, I � 1!U�11'N-11 OS.J OOx - .. _ . . _�_ _ � ____�` "-� __..__ '�� ._ _ Ja pp ' „ ....... . � .. � � ....... "i IOV..It'N.17f�6 .00R .... '•, .• -•• - � � •• _ �� a ,v k�1 ' I NE 7th �iEEi a�.+ �.� 7�p}412 N 1!��pp7{ l• $ � . 1 '-. .� (r�r . 1lll..YY N-FinP+'J.00R w �D LOCNIIN l0 -' � . • • ' -� � � u � W tN fUR9 PACE�VANm dbVE � - .� 1, ..... :. .. ; 1 P �18.N � �;�••�• P R GETNL 91D.PVN t41.00 .. � -01f.27 �� ,�a ' � .� � . � R-eii.oe.�s'(r �a-e�e.oi ine�e.n.ir' ��.oi_e.�Tffi � i+� I �, I' R-eu.00.,r(N) �e��.�i.iz^ - m •, � [-eti.io,ie' �eueo rtwdn.aa I �i ("---^-'-� SCF SFIFFT 5 ¢�eic.eo,i:• �c-asa.cs,�g• � 1 SE[ � c-sx�.e�,e I '�, � SNEE7' S }Z'(q` I IO j �� I x6.t�`i9 iceKna in I� i f l ic_•,io.t�.,s• i �f � I � � L__^_",l �EP-10 APPROXIMATE LOCA710N OF EXPLORATION PIT TYP N � A � °� REFERENCE:OFFE ENOINEERS FEET � > � Aasociated Earth Sciences,Inc. S�TE AND EXPLORATION PLAN FIGURE 2 � � � � � � OLYMPUS VILLA DATE 6111 fl REN7ON,WASHINGTON PROJ.N0. KEi102o2A ' � LOG OF EXPLORATION PIT NO. EP-1 � This log is part of the report prepared by Assoaated EaAh Sciences,Inc.(AES!)for the named project and shoutd be read � together with that report for eomplete interpretafion.This summary applies only to the focation of this trench at the time of excavation.Subsu►face conditions may change at this locatian with tf�e passage of time.The data presented are a o simplfication of actual cond+�ons encountered. DESCRIPTION Approximate Elev.618 Feet Topsoi! Topsoil and roots, trace concrete,asphalt, and metal debris. � Vashon Lodgement Till ' 2 Medium dense, very moist to wet(varies), mottfed gray, fine to coarse SAND with silt few fine to coarse gravel, trace cobbles(sm). No stratification or s#ructure. 3 4 5 Dense grading to very dense very moist slightly mottled gray,fine to coarse SAND with si�t, few fine gravel, trace cobbles (sm). No stratification or structure 6 7 i 8 ; � 9 � 10 Bottom of exploration pit at t Q feet. 11 No Caving. � Weak Seepage Zones: 1.5,3.0,4.0,6.0 feet 12 13 14 15 16 ; 17 18 i � 19 � I i 29 — — I N Olympus Vifla m a King County I � � Associated Earth Sciences,Inc. project No. KE410202A ��, s Logged by: BWG i � Approved bY� a � 6/2t11 ', � U Y ' � LOG OF EXPL4RATION PIT NO. EP-2 � � This fog is part of the report prepared by Associated Earth Sciences,Inc.(AES1 for the named project and should be read together wrth that reporf for complete mterpretation.This summary applies only�o the location of th�s trench at tlie time of � i excavation.Subsurface cond'�Uons may change at this locetion with the passage of time.The data preserrted are a p simplfication of actual conditions encountered � DESCRIPTION Approximate Elev. 518 Feet Topsoil Topsoil and roots, trace concrete rubble, asphalf, metaf debris. Peat-like. � Vashon Lodgement 7ili Medium dense, very moist, to wet(varies) mottled gray, fine to coarse SAND with silt few fine gravel 2 (sm). No stratificatoin or structure. 3 4 I i 5 Becomes very dense, less mottied. ; 6 I ! 7 i 8 � 9 10 Bottom of exploration pit at 10 feet. 11 Slight sloughing due to seepage. Moderate Seepage Zone: 2.0�.0 feet 12 13 14 15 16 17 18 19 i � Olympus Viila � � King County � a � Associated Earth Sciences, Inc. project No. KE190202A g Logged by. BWG - � Approved by: � �� = 6/2111 Y � LOG OF EXPLORATION PIT NO. EP-3 � This log is part of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and should be read together with that report for complets nterpretaUon.This summary apppes onfy to the location of this trench at Uze time of � excavation.Subsurface conditions may change at this location with the passage of time.The data presented are a simplfication of actual condttions encountered. DESCRIPTION Approximate Elev.518 Feet Topsoil Topsoil and roots, trace concrete, asphaft, metal debris. � Vashon Lodgement Tilt �, Medium dense, very moist to wet(varies)mottled gray, fine to coarse SAND with silt, trace fine gravel 2 (sm). No stratification or structure. i 3 i 4 ' Becomes dense grading to very dense, and less mottled. � 6 7 —i z 8 9 ' � 10 Bottom of explora6on pit at 10 feet. 11 Moderate sloughing due to seepage. i Moderate Seepage Zone: 1.5-6.5 feet t 12 13 14 15 16 17 ; 18 19 � �� Olympus Vilfa � m � King County � � � s Associated Earth Sciences,Inc. pro'ect No. KE110202A Logged by: BWG � � Approved by: � � - 6/2/11 U Y � � LOG OF EXPLORATiON PiT NO. EP-4 � � Ttris log is part of the report prepared b�yAssociated Earth Sciences,Inc.(AESI)for the named project and should be read � together wdh that report for complete interpretation.This summary appfies only to the location of this lrench at the time of ' � excavation.Subsurtace condi�ons may change at this tocation with the passage of time.The data presented are a ' o simpification of actual condfions encountered. � DESCRIPTION � Approxfmate Elev.521 Feet = I Topsoil ' Topsoil and roots. Trace concrete rubble. Large tree roots to 3.5' deep. 1 — � Vashon Lodgement Till 2 ; Medium dense, very moist to wet(varies), mottled gray, ,fine to coarse SAND little fine to coarse gravel, ! trace cobbles (sm). No stratification or stn.icture. 3 i 4 � Becomes dense grading to very dense wifh less mottling. 5 6 7 8 9 , 10 i Bottom of e�loration pit at 10 feet. 1'1 No Cav�g. . Weak Seepage Zone: 2.0-4.5 feet ,�2 Slight organic septio-like odor. 13 14 ` � 15 16 17 18 19 ' I'I �^ I', � �lympus Viila II � King County ' � I � Associated Earth Sciences,Inc. � S Logged by: BWG Project No. KE11020ZA I � Approved by: ��* 6/2/11 , YI ' � � LOG OF EXP�ORATtON PIT NO. EP-4A ', '� This log is part of the report prepared by Associated Earth Sciences,Ina(AESI)for the named project and should be read ' atogether wrth that report tor complete interpretation.This summa applfes only to the location of th�s trench at tfte time of , „ excavation.Subsurface condi6ons may change at this location w�ffie passage of time.The data presented are a o simpificcation of actual condi6ons encountered. ' DESCRIPTiON Approximate Elev.521 feet Topsoil 1 FiII 2 Loose to medium dense, very moist, brown fine to medium SAND with silt(sm). 3 4 Vashon Lodgement Till Medium dense, very moist to wet(varies), mottled gray,fine fo coarse SAND with silt, littfe fine to � coarse gravel, trace cobbles(sm}. No stratification or structure. Trace organic(sticks)at 4 feet. I 6 � Becomes dense grading to very dense, and less mottled. i 7 j 8 Bottom of expbration pit at 7.5 feet. IVo Caving. 9 � Weak Seepage Zone: 3.0-6.0 feet I i 10 11 j 12 , � � 13 14 � 15 16 ; � 17 I 18 19 N Olympus Villa � � King County � a � � ed b ew� Associated Earth Sciences,Inc. Project No. KE'i 10202A o �99 Y� - `�, Approved by: , a -, 6/2/11 � U Y � LOG OF EXPLORATION PIT NO. �P-5 '� This lo s part of the report re ared b Assoaated Earth Saences Inc.(AESI)fa the named project and should be read � � together with that report for P,romplete in�erpretation.This summary a'p plies only to the loca6on oF this trench at the time of m excavation.Subsurtace conditior�may change at this bcation with the passage of time.The data presented are a o simplfication of actual conditions encountered. DESCRtPTION ppProximate Elev.522 Feet Topsoit Topsoil and roots, trace debris (bottles and cans). � Vashon Lodgemerrt Till Medium dense, very moist, mottled gray, fine to coarse SAfVD with silt few fne to coarse gravel(sm). 2 No stratificaation or structure. 3 , ' 4 i � I � Becomes dense grading to very dense and less mottled. Trace boulders to 12"diameter. � � 5 I � � 6 � 7 � ; ; i 8 i � 9 10 � Bottom of exploration ptt aY 10 feet. 11 No Caving. , Weak Seepage Zone: 1.5-4.0 feet 12 13 i 14 � � 15 - i i 16 i � ' 17 � 18 ' I 19 I' � � , N Olympus Villa � g King County � a oAssociated Earth Sciences, Inc. project No. KE170202A g Logged by: BWG � Approved by: �. ` ��= � : ' ' 6/2/11 U Y � LOG OF EXPL.ORATION PIT NO. EP-6 - -- �-- � � This log is part of the report prepared by Associated Earth Sciences,Inc.(AESI)for Yhe named project and should be read � together witfi that reporf for complete interpretation.This summary applies only to the location of this trench at the time of d excavaiion.Subsurface conditions may change at this locatlon with ihe passage of time.The data presented are a � , simplfrcation of actual conditions encountered. i � DESCRIPTION Approximate Elev.524 Feet � Topsoii Topsoil and roots � ' Vashon Lodgement Till � Medium dense, very moist to wet, mottled gray,fine to coarse SAND with silt, little fine to coarse gravel 2 trace cobbles(sm}. No strat�cation or structure. ; 3 i 4 Becomes dense grading to�ery dense, and less mottled. 5 8 i 7 8 9 10 gottom of explorafion pit af 9.5 feet. No Caving. 11 1Neak Seepage Zones: 3.5 and 9.0 feet 12 13 14 15 16 � 17 i 18 19 � i �$ _ _ --- - --—- -_ _ N Olympus Villa � g King County � a � � Associated Earth Sciences, Inc. s Logged by: BWG Project No. KE1'I0202A � Approved bY� � ; ` _ 6/2l11 U Y � � � LOG OF EXPLORATION PtT NO. EP-6A � This log is part of the repwt prepared by AssociaYed Earth Sciertces,I�a(AESp for the named project and should be read � a together wtth ihat repo�f for complete interpretation.This summary appNes only to fhe location of this trench at fhe time of I , � excavation.Subsurface con�itlons may change at this location with the passage of time.The data presented are a O simplfication of actual conditions encountered. � DESCRIPTION Approximate Elev.525 Feet Topsoil ' � � Filf Loose to medium dense, very moist, brown fine to medium SAND with siit(sm). 2 3 Vashon Lodgement Till 4 Medium dense to dense, very moist, mottled gray, fine to medium SAND with silt, few fine gravei (sm). No stratification or structure. 5 6 Bottom of e�loratlon pit at 6 feet. 7 No Caving, No Seepage. 8 I 9 10 I 11 I 12 ; i 'l3 ! � 14 15 16 17 , � � ; 18 19 .�� Olympus Villa � � King County � a � Associated Earth Sciences, Inc. project No. KE910202A g Logged by: BWG � Approved by: �r 6/2/11 � U Y ' � � � LOG OF EXPLORATION PIT NO. EP-7 1 � This log is part of the report prepared by Associated Earth Sciences,lnc.(AESI for fhe nemed project and should be read 3 � togeiher with that report for comple[e Interpretation.This summary applies only�o the location of th�s trench at the time of � '� � excavaUon.Su6surface condidons may change at this IocaHon with the passage of Ume.The data presented are a , p simptfication of actual conditions enco�tered. DESCRtPTION Approximate Efev.528 Feet Topsoil j t � Concrete- Possible intact strip footing 2 Fill Loose, wet, brown, fine to coarse sand with silt, wood debris with water in voids (old basement?). 3 I l 4 5 � 6 , Firmer based on difficulty of excavation. Visual observations not possible due to water. f i � 7 4 — Bottom of exploration pit at 7 feet. 8 Strong Seepage below 3.0 feet 9 ' 10 I 11 I 12 � 1 ; 13 —� i 14 � 15 —f � 16 � 17 18 19 nn N 4lympus Villa � � King County a 0 s Associated Earth Sciences,Inc. pro'ect No. KE110202A Logged by: BWG � � Approved by: � � 6/2/11 Y � � � LOG OF EXPLORATfON PIT NO. EP-7A -- --- --- ----- - _� � � This bg is part of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named proJ�ect and should be read �a together with tliat report for complete interpretation.This summary applies only�o tlie location of thfs Uench at the time of � excavatlon.Subsurface conditions may change at this location with the passage of t�me.The data presented are a � simplfica6on of actual conditlons encountered. j i ' DESCRIPTIOtd Approxlmate Elev.528 Feet Topsoil � Vashon Lodgement Tiit � Medium dense, very moist to wet, mottled gray, fine to coarse SAND with silt, iittle fine to coarse gravel 2 trace cobbles (sm). No stratification or structure. 3 Becomes dense grading to very dense, and less mottled. � 4 5 6 1 I 7 - ' Bottom of exploration pit at 7 feet. 8 No Caving. Weak 5eepage Zones: 1.0 and 3.0 feet 9 ; � I 10 11 12 � I , 13 � I 14 ', 15 16 j � � 17 � , 18 ' 19 �^ - ---- � Olympus Vitla � � King County � a � Associated Earth Sciences,Inc. project No. KE110202A g Logged by: BWG � Approved by: �� `• , ` _ 6/2111 U Y � � � LOG OF EKPLORATION PIT NO. EP-7B � This fog is part of fhe report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and should be read � together wdh that report for complete interpreta6on.This summary appfies only to the location of tfiis trench at the time of � excavaUon.Subsurtace cond'�ions may change at this location with the passage of time.The data presented are a ❑ simplfication of actual conditions encountered. DESCRIPTtON � Approximate Etev.528 Feet � Topsoil 1 Fill 2 Loose, very moist brown and blacic SAlVD with silt, trace organics, and sticks. In a wedge-shaped deposit thickening toward EP-7. 3 4 Vashon Lodgement Till � Medium dense, very moist, mottled gray, fine to medium SAND with silt, few fine ta coarse gravel (sm). No stratification or structure. f 6 ( f 7 8 Bottom of exploration pit at 8 feet. 9 No Caving. Weak Seepage Zone: 2.0-5.0 feet �a 11 12 I� 13 '� 14 15 16 � 17 18 I � 19 N Olympus Villa � � King County � a sAssociated Earth Sciences, Inc. project No. KE190202A o Logged by: BWG a Approved by: a _ _ 6/2/11 � Y ' � � ' LOG OF EXPLORATtON PIT NO. EP-7C � This log is part of the report prepared by Assoc'rated Earth Sciences,lnc.(AESII for the named project and should be read � togethsr with fihat reporf for complete m�erpretation.This summary applles only�o the location of th�s t�ench at ttie time o# m excavatlon.Subsurface conditions may change at this location wrth tfie passage of time.The data presented are a o simpification of actual condifions encountered. DESCRIPTION Approximate Elev,528 Feet Topsoil � Fiil ` Similar to EP-7. Loose,wet, brown,fine SAND with silt, organics, and sticks{sm). � 2 � 3 i 4 Bottom of explora4on pit at 3.5 feet. Strong Seepage below 2.5 feet. r� Abandoned due to water-Moved Wesf. ! 6 7 I 8 9 � 10 i � 11 ' 12 13 14 ; 15 36 f 17 18 � � 19 � I � Olympus Vitla ' g King County ', Q Associated Earth Sciences, Inc. I " Project No. KE110202A o Logged by: BWG ' � ApProved bY: ' ; � � 6/2111 � Y I ' � � ' LOG OF EXPLORATION PiT NO. EP-7D � This log is part of the report prepared by Associated Earth Sciences,Inc.(AESI)for the named project and should be read � together v�nth that report for complete interpretation.This summary appties only to the location of th�s Uench at the time of ' m excavation.Subsurtace conditions may change at this location wRh the passage of time.The data presented are a ! p simpification of actual conditions encountered. � i DESCRIPTION Approximate Elev.528 Feet Topsoil 1 � � Filt � Loose to medium dense, very moist, brown fine to medium SAND with sift(sm). 2 I Vashon Lodgemerrt Tilt Medium dense, very moist, brown fine to medium SAND with silf, few fine to coarse gravel(sm). No , 3 stratification or structure. i 4 I � Becomes dense grading to very dense, and less mottled. 1 5 , t ' 6 7 � Bottom of exploration pit at 7 feet. ' 8 No Caving. Weak Seepage Zone: 4.0 feet 9 � 10 —i i i 11 12 13 � 14 95 i �s i 17 18 19 -} ! I � nn —�� Olympus Villa � � King County a � Associated Eaxth Sciences,Inc, � Logged by: BWO Project No. KE110202A �� s Approved by: 6/2111 r- y � ' � ' ' LOG OF EXPLORATION PIT NO. EP-7E � This log is part of the report prepared by Associated Earth Sciences,Inc.(AESI for the named project and should be read ' � together�nnth that report for complete interpretation.This summary applies ony�o the locetion of this trench at the time of ' � t excavation.Subsurtace conditions may change at this location with fhe passage of time.The data presented are a o I simpffication of actual condidons encountered. DESCRtPTlON ppprox(mate Elev.628 Feet Topsoil � Vashon Lodgement Till Medium dense, very moist to wet, mottied gray, fine to coarse SAND with silt, little fine to coarse gravel 2 trace cobbles(sm). No stratification or structure. 3 Becomes dense grading to very dense, and less mottled. � 4 � I i , 5 � 6 Bottom of exploration pit at 6 feet. 7 No Seepage. � 8 � 9 10 11 12 13 14 15 I 16 17 i 18 19 i �� N Olympus Villa m � King County � a 0 oAssociated Earth Sciences, Inc. g Logged by: BWG Project No. KE110202A � Approved by. �a � 6/2/11 U Y ' ' ' ` LOG OF EXPLORATION PIT NO. EP-8 � This log is part of the report prepared by Associated Earth Sciences,Inc.(AESi}for the named project and should be read 4 � together v�nth that report for complete irrterpretation.This summary ap plies only{o the location of this trench at the time of � excavation.Subsurface conditions may change at this location wAh tfie passage of time.The data presented ara a , o simpification of actuai condfions encountered. � DESCRIPTION Approximate Elev.529 FeeE Topsoil � ' Vashon Lodgement Tifl Medium dense, very moist to wet, mottied gray, fine to coarse SAND with silt, little fine to coarse gravel 2 trace cobbles (sm). No stratification or structure. � 3 I � 4 5 Becomes dense grading to very dense, and less mottted. � 6 7 8 I 9 �a Bottom of exploration pit at 9.5 feet. No Caving. �1 Weak Seepage Zones: 3.0,4.5,8.0 feef i 12 13 . 14 15 16 � 17 � i 48 19 ,,., � N Olympus Vitla � m � King County 'a c� 5� Associated Earth Sciences,Inc. pro ect No. KE110202A S Logged by: BWG j � Approved by: � 6/2/11 U Y � � ' • LOG OF EXPLORATION PIT NO. EP-9 ! � This!og is part of the report prepared by Associated Earth Sciences,ina(AE51)for the named project and shoutd be read { � � together wdh that report for complete interpretatiort.This summary appties onty io the lacation of th�s trench at lhe time of ! ,�, excavation.Subsurtace conditions may change at this locatlon with tFie passage of dme.The data presented a�e a ' p simpification of actual condibons encountered. DESCRIPTION Approximate Elev.530 Feet Topsoil � � Vashon Lodgement Ti11 I Medium dense, very moist to wet, mottled gray, fine to coarse SAlVD with sil#, little fine to coarse gravel 2 trace cobbles (sm). No stratification or structure. 3 4 Becomes dense grading to very dense, and less mottled. 5 6 7 8 9 10 � Bottom of expioration pit at 10 feet. 11 No Caving. Weak Seepage Zones: 2.0,4.0,and 6.Q-9.0 feet 12 ' ; 13 14 ' I 15 16 i 17 � 18 � 19 �� R Otympus Villa : � King County a t� - s Associated Earth Sciences,Inc. Pro"ect No. KE110202A o Logged by: BWG � � ApProved bY� �_� 6/2111 U Y L. ._ _ .._ .. � ' "' LOG OF EXPLORATION PIT NO. EP-10 ! � This log is part of the report prepared by Associated Earth Sciences,Ina(AESI)for the named project and shouid be read ' {, together wdh that reporf for complete irrterpretation.This summary ap p6es only to tli,e location of this trench at fhe time of � excavation.Subsurtace conditions may change at this locatlon wilh tf�e passage of Ume.The data presented are a p simplfrcation of acival conditions encountered. i I DESCRIPTlON qpproximate Elev.530 Feet Topsoil ; � Vashon Lodgement TIII Medium dense, vety maist to wet, mottled gray, fine to coarse SAND with siit, little fine to coarse gravel 2 trace cobbles (sm). No strat�cation or structure. 3 4 ' Becomes dense grading to very dense, and less mottled. 5 6 7 8 1 � ' � i 9 10 gottom of e�loration pit at 9.5 feet. Weak Seepage Zones: 3.0-4.0,6.0 feet 11 12 � 13 I ' 14 I j 15 16 17 i � 18 I 19 � , � �� R Olympus Villa m � King County � a � 5 Associated Earth Sciences,Inc. Project No. KE110202A o Logged by: BWG � Approved by: � ` 6/2111 ��" :> U Y ``�li�(� l,�nQ, ��, �� IVI�� c;�r►%� �.�;i ( t c,�; � , � -r' ' • �'h�2(Jr'lfU�„1.�,�, .�L�G�` � i ( rt, l. ; :_ '�1 ^�u l� JU t.,Y1�t,�" � C� �.1� ��Zh u� c�1.� ,, � , � �-'� �t"-Q .� � c�n� ru.U�l � �n �u�ti� U:�_ 1 " �� v� � =� 'u-�h�#o S�1v�,�-�-'�, -�� - n-tQ ds -� r.� c� �� ^ ►�1'� Vil�t,cl� -�o t1't i�,� '� h �,_� � �-} -�. � ' ``ti`�' �'`'`� , F , .��_ . � �;.�� '�` ' Sewall Wetland Gonsulting, Inc. ;�;,.. � YY _ ' I oSlr ,� ✓ � - - --_ - - � F R NTpN �'��:�1�� d JUN ! 7 2011 PLA� RFyl� OLYMPUS VII�LA CITY OF RENTON CRITICAL A.REAS REPORT Prepared For: Bill Finkbeiner 12011 Bcl-Red Road Bellevue 98005 December 16,2010 Job#10-144 Sewall Wetland Consulting,Inc. Yhone: 2�3-b�9-0�1� 27Cr31 Coaington`Vay SE,#2 Fax: 2�3-852-4732 Covu�gton,��'A 98042 I � ( � .1 • • �� I4 ,� . , ��„��'I`'�!,> �iy � j �;,, _ '�;,} , Sewall We�and Consul�ng, Inc. ��{� 27641 Co�ingto�Way SE#2 Phone:253-859-0515 � _ ��-�� Covington,WA 98042 Fax:253-852-4732 OLYMPUS VILLA CITY OF RENTON CRITICAL AREAS REPORT lA INTRODUCTION _ This report describes jurisdictional wetlands on the 6.65 acre proposed Olympus Villa Plat located on the east side of Nile Avenue NE(148`�Avenue SE) in the City of Renton, Washington(the"site"). Specifically,the site consists of an irregular shaped parcel in a portion of the SW '/<of Section 11,Tovvnship 23 North, Range 5 East of the Willamette Meridian in King County, Washington. ._ ..__. a�,� , 's �t„� � VE'On R � S. �j � C . y � o ric`aln S� NE tt7,t=_� m sr.tt5m St � �'�^ c' Y Sc'1bh S "r_11Sm 5: � D hc�+:.i � SE tt?tf:� m ' 6 C; A � Z NeTSt Z �:,y�,: a I� D *JE&h G m r��,�-n?.��r M s �� 5 r.,; ' Z g m • a m i c PiE 6l'St Sc'IO[h$� � p �tc 7M..� ,,�-�� ]�Wp4' I ry Z�c 7!hP S� `1E iNT `�SE m ' �� KE ln 5t 3. ' g D : � a M O 4 � � s � m - ^�.'� � � a'� � � � � a Q r�E dtn St Sc'24']�S c 4E 6-r.St �" S£.�4^, c n A � � NC�'wT.ri O $_1 j�(�1$ � tll N 2 > >c ' _ � m m � f - c ' o �' S_t�A SI ?, a = � y > Z '1=_5:.^.$• m � f j VF�-�q m r � � `e P /:a o m o D m n �� N�'N-Pi _ /� � D m ��2�«.vr .:.... SE 129h S1 ` `s . � NE�51 SE 1 MF S1 � � ? �E 3-e w � r�E 3'c�:.n - I t-�.N�b ,� . � 3 Fi=3td G - ` c tiE y!St � g i I, '� m Iv�2aA$S D a �� Y 5 �7n = � `a Sc i °C� m m �. � � Vicinity Map The site consists of an undeveloped parcel containing both forest and pasture areas. The site is proposed to be subdivided into 11 single family residential Lots with associated roads and infrastructure. � � Olympus Villa/#10-144 Sewall Wetland Co�zs�slting, Inc. Decernber 16, 2010 Page 2 Z.0 1�'IETHODOLOGY Ed Sewall of Se«�all Wetland Consulting, Inc. inspected the site in August and October of 2010. The site was reviewed using methodology described in the Washington State Wetlands Identification Manual(WADOE,March 1997). This is the methodology currently recognized by the City of Renton and the State of Washington for wetland determinations and delineations. The site was also inspected using the methodology described in the Corps of Engineers Wetlands Delineation Manual(Environmental Laboratory, 1987), and the Western Mountains, Valleys and Coast region Supplement (Version 2.0)dated June 24, 2010, as required by the US Army Corps of Engineers. Soil colors were identified using the 1990 Edited and Revised Edition of the Munsell Soil Color Charts(Kollmorgen Instruments Corp. 1990}. � The Washington State u'etlands Ident f cation and Delineation Manual and the Corps of Engineers Wetlands Delineation Manual,�Regional Supplement all require the use of the three-parameter approach in identifying and delineating wetlands. A wetland should support a predominance of hydrophytic vegetation, have hydric soils and display wetland hydrology. To be considered hydrophytic vegetation, over 50% of the dominant species in an area must have an indicator status of facultative(FAC), facultative wetland (FACW), or obligate wetland(OBL),according to the National List of Plant Species That Occur in Wetlands: Northwest(Region 9) (Reed, 1988). A hydric soil is "a soil that is saturated, flooded,or ponded long enough during the growing season to develop anaerobic conditions in the upper part". Anaerobic conditions are indicated in the field by soils with low chromas(2 or less), as determined by using the Munsell Soil Color Charts; iron o�de mottles;hydrogen sulfide odor and other indicators. Generally, wetland hydrology is defined by inundation or saturation to the surface for a consecutive period of 12.5% or greater of the growing season. Areas that contain indicators of wetland hydrology between 5%-12.5%of the growing season may or may not be wetlands depending upon other indicators. Field indicators include visual observation of� soil inundation, saturation, oxidized rhizospheres, water marks on trees or other fixed objects, drift lines, etc. Under normal circumstances, indicators of all three p•.�ramr��r will be present in wetland areas. Following delineation of the wetlands on the site, the flags ��ere surveyed by Mead Gilman and Associates (see attached survey). 3.0 OBSERVATIONS 3.1 Existing Site Documentation Prior to visiting the site a review of several natural resource inventory maps was conducted. Resources reviewed included the King County Soils Survey, King County ' ' Olympus Villa�#10-144 Sewall Wetland Consulting, Inc. December 16, 2010 Page 3 iMap website with sensitive areas layers activated, the National Wetlands Inventory, the City of Renton's Water Class map,and the City of Renton's wetland Inventory map. 3.1.1 Soil Survey According to the Soil Survey, King County Area, Washington(Snyder et al 1973},the entire site is mapped as containing Alderwood gravelly loam soils (AgC ). Alderwood soils are moderately-well drained soils formed in glacial till under conifers. Alderwood soils are not listed as a "hydric" soil according to the publication Hydric Soils of t{ie United States(USDA NTCHS Pub No.1491, 1991). However, Alderwood soils can contain small inclusions of poorly drained hyric soils such Norma,Bellingham, Seattle, Tukwila and Shalcar soil series. - � � .�1 _ � _ �. � -- �I �` �#_�� ..�` -�� 91� ,s .�r�� r...�.�"'� _ ��. �#�� g �{ �-. � r�" `a�< � � _;.-� r � � � u, �� '� �� - -. � -� . ��` � �:"'` � !.. _ ._ -�� ,- _ - _ _ * _ � _ � � � :� ' '� , _ � .��;�,;��"� '► � �. ��r �.� ti 'j�r�- f � �:�� ;•�_ �-.s�T; � �� .t o � � �:.�. .,�"��,a„ �.,'� �' 3. �j i' � I e� -� ,�� _ � � �_ � ��: �, *, � � � � � '�., ,-�.,' ,� ; I �� . j - �' 's � '�� Y _ . I ;� ��` } i - t , � �� i i s � �6.' � . � •� �_.< . y aik _ � i '�-+_ ,�y, � - ' �J I � I - - r, � t*-r � "` s I � F • �.. _ '4'- . �� -_ � s t a_� i ...� : .��'�. :. ".L� .e �> � . �`� �_ . � -.. � :��,�1 .�;�lp ��t i� srte 3.1.2 National Wetlands Inventory According to the National Wetlands Inventory there are no wetlands are located on the site. There is a forested wetland identified approximately 200' south of the west end of the site. There is also a small forested and emergent wetland depicted south of the east end of the site approximately 200'. � • � • , ' Olympus L'illcz��#10-144 I� Sewall Wetlarui Consulting, Inc. ' December 16, 2010 I Page 4 I � `_ " - �'6�'� S ,�r 2 _ � 3�* a ��A' �: r ,� � 1'; �` � �� '�. � i 3 � - .[ i� � .j ;�+ - I �r �� I '� 1�5. � t �� v.. '� �� t� - - - �� ,��E��G � : � -__ .5; � f .�-� �„ - :-.�.� . _ "<i� '�' �ti. _� �j`�!. _ .. 4 �,I . `S.`�^"' `o�� t-'S'Ta��Etezs`YF'TN��i� -.�€�.,e� � - ,� � ��f. � c'�` ' t!�;� - , '� .�}�-aT- - � - � y�� d! r` {� " .�';' � - ' ` ,= � . � 4 �� National Y�'etlands Invenlory map 3.1.4 City of Renton Water Class Map � According to the City of Renton Draft Water Class Map, there are no streams on or near the site. . _ . � ' � 1Ir''R. p �� . . ,�,( k t�z�y ,! �,?', ^c "h .� l....__•e W � '`a '�'N .� � < � � � ��141R Y� . IE']Ih f�. � � � 4 �7.� � i i . � - �''� � 'CPr�cr � Y Y � �" . . 5 11i'+5t �r,• . � b1 5E II?yi S1 g?i!N Q �� y; - �� 4 u c i IG RF:� � � � � R 't�I t�� -�-�.�.�,� _ �� C t+r 4 � . 3 �2hr Y �.� SF(E y� � : rt � L"�-e �_..o �fSTI � " Y - e' � � �....e : ��r _ z t � �,�,s� A�[�'! ��6' P. 'i�^ 'J �('`J!5 � T �^ � : c ee i s � � ' 1 � `' !± i � � r � Fl � � t r � � ,.�__,�_ � .-i - s < � t y i — . � �. ' � �?k!� 9i �E i-��• � .. '1E 1!N � 4E IS•� y tifc�St � -�.�-.r.�.-�.�.�-��.� .�.�.� Above: City of Renton's Water Type Map � � � Olympus Villa/�10-144 Sewall Wetland Consulting, Inc. December 16, 2010 Page S 3.1.5 City of Renton's Wetlands Map , _ i` ,�s .t �� —' �`_'� �`` --�. � ��N. L „$„ y_aY * � 1 �:;�,�."C'g ,�L1t� �� ! � �t��T�:�. J eS t7�.��.�». �x- �e-'w h � : o � I �� ... � �.d��-..�. �� r� o � � �:.�..,._� � i ��^:�`a�;` •4 ' i;r.,., � —`�-1 ,�«-'�� l� � , Q 1S1TE `^ Y �` It. � . � u .- - . � � � � �� o �� , � � . , �� . ` _ � ;�,�`�,•"` _' ; : 1 Above: City of Renton's Wetland Inventory Map. According to the City of Renton's Wetland Inventory Map, there is a wetland located to the south of the east end of the site. The scale of the map and lack of most streets make the actual distance from the site impossible to determine. 3.2 Field Observations 3.2.1 Uplands The site is located on a relatively flat plateau area with a very slight slope to the west. The site consists of an overgrown/fallow pasture area on the western half of the site,and a deciduous forested area on the eastern half of the site. . � ' Olympus Yilla'�10-144 Sewa11 Wetland Consulting, Inc. December 16, 2010 Page 6 I ,�,,�, , �, -�cn p�- o. . II ��` � �� - _� �' `y, a �i Et �- �1� +nYc _ _ r_�, {L ��W ��.�t .'� a 'au��`i .-�.�� '=��`', �.r -_€.j k � . �� _ _ ; _ . ��n�P�.�tiE �i., —.�, R ��;� f 4�� F. ��. `�� =Y .� r-�'�,,^ '�F �-. � :.{{.�� ' �I._ Rqsaro Av5 NE _ �`�. - - •. ...,_,. ��.� � .... '— � - ' - � �� stii �:, ' I ,' + v � ��.,�`., a,�,� W � "�:-�-,,<-� ;,.�` - z �r _ � " -� , ��. ��HE . t _ �-si .�'� j �� -SSBs .� ¢�..:. :v _ {i�`-.�+�� 1� � .:� 'Y.. ".,_.'� Y� �� ; __ �Jlh.Aw SE � ~ -- �.�'3.r � �ry �.^_ — -}= . � �� -. /- .�e.�e k � , s. _ ��z�.-� '��-e ��fd� ��< �d �Y; ,� 1 _ � K.e�„" � � ' � �� ia � +� .�f.� �. � - �.;;�?s't _ ' � 1 i'Mhi A�m S•�t�' � ` � �'� � q«%- ' _.�-�� .:' ; I �_ t_ ' s,��; � ,�- �-�'Lr ��- � `�� _ �x A � ° � - __ t � j ., .1�, � �, ,� , � . � _..e._ _ '` -'��=s �:� � . _ , � „s�a� � ._v... .� i .. .. ... �.n. � �•s• ' r T�. .y. . _ � (n Above: Oblique view of site looking eas� The pasture area is vegetated with a mix of orchard grass (Dactylis glomerata), tall fescue(Festuca arundinacea),Canadian thistle(Cirs�um arvense)and Himalayan blackberry(Rubus discolor). Several cottonwood(Populus balsamifera)trees are found near the west end of the site bordering a small isolated wetland. There are also scattered bitter cherry(Prunus emarginata)seedlings and saplings in this area. T'he eastern half of the site contains a deciduous forested wetland, surrounded by a forested buffer on both the east and west. The forested upland buffer area is vegetated with a mix of red alder(Alnus rubra),cottonwood{Populus balsamifera},big leaf maple (Acer macrophyllum),bitter cherry(Prunus emarginata), elderberry(Sambucus racemosa), and a very thick shrub strata of Himalayan blackberry(Rubus d�scolor) with some sword fern(Polystichum munitum) and bracken fern(Pteridium aquilinum). 3.2.2 Wetlands A total of two (2)wetlands were delineated on the site. Wetland A is located along the east side of the site and Wetland B is located along the west side of the site. . � Olympus 6'illa'�10-I�t4 Sewall Wetlaird Consulting,Inc. December 16, 2010 Yage ? Wetland A Wetland A was delineated with pink flags labeled A1-A11 & AA1-AA6, and is located along the east side of the site within the deciduous forest. This depressional type wetland is heavily overgown with blackberry and contains a deciduous overstory canopy approximately 50 years in age. The wetland sits in a shallow depression that has an old dug ditch at the north end of the wetland near flag At 1. It is unknown if water actually drains in or out this ditch as it has been dry during our site visits. There was no evidence that any flow occurred in this ditch,although in the winter it is feasible it does drain to some degree. _ - ._... � ,� sc�r�u ,. _ - r� ,�:. -: _,. .: t , � .. .,�.•. , ;< t:. - � ,- vy... .. �� S .�. .. 4'� � '��' _ u �kl. ..f .� 1 � � �� . � s� '-k Y ,`r:_-._t{j 1 �' .��;-r.;�,....� � i = ; • ��:� '�.�t> � �.. I�~� -� �`i- t i �� ' -� .a � _ x �'r��, `t t - ; � y � � ` �- .:r.Y ,.7 , _ s3 S � . ;... �ts� f;� ,2' !� �, ,r"�" �� i ;�.� .�N-r},��p,� �� ?• �j , �.��_ ' ,� � �� `Nr � �� ,�:� - '� .��" •i�p +�-. f � - -� r'y_ _u. : a c - � � ` ��.-� .. . . . �5 Y..i" k�. � v�� .Y Ndi_ j _ L� y� Z.- ��. ��" y[�*. ( J " � 1- �' .�` : . � � � �� .l 3 � . � Ni SI . �..�"yR.Yi _N ""_'_"1 Above:Looking north at the east ejid of�lte site where {�1�etla�id A is located. Vegetation in this wetland consists of an overstory of red alder that is 6"-18"dbh, with an understory comprised of vine maple (Acer c�rcinatum), red-osier dogwood(Cornu.5� stolinifera), salmonberry(Rubus spectab�lis), and a substantial amount of Himalayal� blackberry. The herb strata is sparse due to the heavy blackberry cover, but consists of patches of slough sedge (Carex obnupta), creeping buttercup (Ranunct�lu.c reJ�ens), lady fem(Athyrium filix femina)and some manna grass (Glyceria elata), I Soil pits excavated within the wetland revealed a sandy loam with a matrix color of lOYR 2/2 with few, fine redoximoprhic concentrations. Soils were only moist during our dry season site inspection, but water stained leaves and water marks on vegetation indicate standing water is present within this wetland during the wet season. � I� . ' � Olympus Villa/�10-194 Sewall Wetland Consulting, Inc. December 16, 2010 Page 8 Wetland A would be classified as PFOlE (palustrine, forested,broad leaved deciduous, persistent, saturated) according to the US Fish and Wildlife Wetland Classification methodology(Cowardin et al. 1979). According to the criteria in City of Renton Municipal Code(RMC)Chapter 4-3-OSO.M.1, Wetland A would be classified as Category 2 wetland. Category 2 wetlands are defined in the Code as follows; ii. Category 2: Category 2 wetlands are wetlands which meet one or more of the following criteria: (a) Wetlands that are not Category 1 or 3 wetlands; and/or (b) Wetlands that have heron rookeries or osprey nests, but are not Category 1 wetlands; and%r (c) Wetlands of any size located at the headwaters of a watercourse, i.e., a wetland with a perennial or seasonal outflow channel, but with no defrned influcnt channel, but are not Category 1 wetlands; and/or � (d) Wetlands having minimum existing evidence of human-related physical alteration such as diking, ditching or channelization; and/or Wetland A best meets this rating as a wetland with minimum evidence of human related ' physical alteration,but not meeting the criteria of a Category 1 or Category 3 wetland. Typically, Category 2 wetlands have a 50' buffer measwed from the wetland edge. Wetland B Wetland B (flags B 1-B8)consists of a small, isolated depression with evidence of past soil disturbance. This is located at the west end of the site in an old fenced in pasture area. Portions of the wetland have old concrete debris which may be part of an old foundation to a structure that was historically located in this area. This area also appears to be excavated out as overgrown spoil piles are present along the south boundary abutting the wetland. , � 011m�ni.s i illa%z 10-14-f Sewall Wetland Corisultirrg, bzc. December 16, 2010 I'age 9 r - .t. 's;..�: �*' a`r, ;�`}`�`T' �';�T �:.�. f'�� # ,y,,� 1..� � �...�e"1*�7)". . 'fbw.F4_,� �� _ 4'� J." t'.. ' "�K. _ 2 � 4 � iy I �i' c� �:. � ��^4' �ti � - _ . ,� �'{i� YS. �:4 ��i.,�. � A��y-�:�'��- `''�� - Y.A � !�y�F`��' '��Y -:� r_ ` � ��.-��c� _ �: � � k .. � � ��' 3 �}�,�'�.�' `� �'J i�'�.. . - �* } .k� �_. :, p`-'�'=` ' �� -� .. : ��+� �`',s.r-� _ f .f- ,� -L�, + ��a:.?-'��- '`'*..� .�ay�. i . - - y �K'.`- jFa�3� �ir'' '.�`� �s.a",� l'� r: `� .�.� _ _ ��"'3�as4�„�� ' �y,=.. y ; � � ' ^.�'^ • z c £ i. : �d s� . .f'x��'�.�".s . - .:a. ��2"'�.1�� .f-. . �`? ��.�'a �-,.�.e,`��`- _ � F �`j� - ��- _ z �.... '� y,,,�w,,.,�. 4.,.. � - ��1.%,F/"�f�- :_y`Xy� '� c� �"-"; ' . �-t� .�7F_ .,r,. �.za�s..� v-��,�, f �a. _ � -�'�` _ ��r�---1 <...,s: __ _ �, Above:Look�ng east from 148` towards 6f'etland B This wetland is dominated by a mix of hardhack(Spirea douglasii), timothy(Phle�� pretense), and fescue(Festuca arundinacea). Several small willows (Salix spp.)are located near the excavation and the area surrounding the concrete debris. Soil pits excavated in this wetland revealed a dark(lOYR 3/2) gravelly loa►n ��ith t��ir�t redo�morphic concentrations. Soils were only moist during our dry season site inspection,but water stained leaves and water marks on vcgctation indicate standin_� water is present within this wetland during the wet season. Wetland B would be classified as PSS lE(palustrine, scrub-shrub, persistent, saturated 1 according to the US Fish and Wildlife Wetland Classification methodolo�� (Cowardin �t al. 1979). According to the criteria in City ofRenton Municipal Cod� (RMC) Chapter 4-3-O�U.M. 1, Wetland B would be classified as Category 3 wetland. Category 3 ��etlands are defined in Code as follo��-s; ili. Categorti� 3: ('utcgorv 3 wetluncls c�rc: H�etlunc�s wl�ich mecl ��ne ��r mnrE of the following criteria: (a) Wetlands that are severelv distz�rbecl. Severelv disturbed wetlands are wetlands which meet the follox�ing criteria: � _ � � olym�.s ti'illa/.�10-144 �, Sewall Wetland Cwznrlting, Inc. December 16, 2010 �� Page 10 (1)Are characterized by hydrologic isolation, human-related hydrologic alterations such as diking, ditching, channelization and/or outlet modifrcation; and (2) Have soils alterations such as the presence of fill, soil removal and/or compaction of soils; and (3J May have altered vegetation. ' (b) Wetlands that are newly emerging. Newly emerging wetlands are: (1) Wetlands occurring on top of fill materials; and (2) Characterized by emergent vegetation, low plant species richness and used minimally by wildlife. These wetlands are generally found in the areas such as the Green River Valley and Black River Drainage Basin. (c)All other wetlands not classified as Category 1 or 2 such as smaller, high quality wetlands. Wetland B meets these criteria justifying it as a Category 3 wetland; aL The wedand is disturbed with evidence of past excavation and placement of old concrete, isolated with a dike/berm along its south side a2. The soils are disturbed from historic grading, filling and compaction by apparent use as a livestock holding area. Typically, Category 3 wetlands have a 25' buffer measured from the wetland edge. 4.0 FUNCTIONS AND VALUES The ri�vo wetlands on-site were analyzed for function using the Washington State Department of Ecology Wetlands rating System for Western Washington. This system is typically utilized to classify wetlands,but the classification is function-based,scoring three main functions, 1,) water quality, 2) hydrologic function, and 3}habitat functions. Wetland A-Wetland A scored a total of 41 points indicating a Category 3 wetland under this system which indicates moderate overall functional value. Its highest scoring function was for water quality which scored 18 points, and its hydrologic function was relatively low at 10 points as was its habitat value at 13 points. Factors reducing its hydrologic function include the fact it has an outflow point on the north in the ditch, water does not pond very deep within its borders,and it's relarively small size compared to the hydrologic basin which it is located in. Habitat value for this wetland is low, as a result of small size, no unique habitat features, lack of a variety of plant communities, its isolation from other habitat areas, and the close proximity of development to its boundaries. ' Olympu,r Y�lla%�10-/4-t Sewall Wetland Consulting, Inc. December 16, 2010 Page 11 Wetland B-Wetland B scored a total of 37 points also indicating a Category 3 wetland under this system which indicates low-moderate overall functional value. As with Wetland A, its highest scoring function was also for water quality which scored lb points,and its hydrologic function was moderate at 14 points and its habitat value was very low at 7 points. Factors that made Wetland B's hydrologic function higher than wetland A's are related primarily to the fact it is isolated with no outflow. Habitat value for this wetland is very low, as a result of small size, no unique habitat features, lack of a variety of plant communities and species, its isolation from other habitat areas, and the close pro�cimity of development to its boundaries. 5.0 REGULATIONS In addition to the wetland regulations previously described for wetlands and streams, certain activities (filling and dredging) within "waters of the United States" may fall under the jurisdiction of the US Army Corps of Engineers(ACOE). The ACOE regulates all discharges into "waters of the United States" (wetlands)under Section 404(b)of the Clean Water Act. Due to the increasing emphasis on Endangered Species Act compliance for all fills of Waters of the United State and Waters of the State,both the Corps of Engineers and Washington Department of Ecology should be contacted regarding permit conditions, compliance,and processing prior to commitment to any fill of wetlands or streams for this project. 6.0 PROPOSED PROJECT The proposed project is the construction of an 11 lot subdivision with associated access ' road, and storm water facility. In order to access the site the only feasible place for a road into the property is off 148`�Avenue SE (aka Nile Avenue NE). This access point is very nanow and requires passing through the south end of Wetland B. In addition, City ' Code would require a buffer to be maintained off the road access point which would � further impact a band 25' wide through this wetland. The resulting wetland would be �, half of its original size and would be greatly reduced in function. Additionally,the only ' feasible location for the storm water facility due to the sites topography is in the location ' of Wetland B. As a result, it is our intention to fill Wetland B and provide adequate , mitigation for its lost functions. Impacts to wetlands must be justified through a mitigation sequence as detailed in City of Renton Code. This sequencing requires ' addressing the following criteria; ' Olymin�s i illai�/0-!a� Sex�czll Wetland Consultirzg, Inc. December 16, 2010 Pagc: 12 a. Avoid any disturbances to the wetland or buffer; As detailed above, avoidence of the wetland and its buffer is not possible with the City required access road(new NE 7`�Place). This will require impacts to appro�matley '/z of I the wetland once the city required buffer is applied from the final road layout through the wetland. b. Minimize any wetland or buffer impacts; The new NE 7`�Place access road has been reduced to City minium road widths of 45'. Once a 25' buffer is added to the new road prism half of Wetland B will be impacted. Additionally,the only feasible location for the stormwater facility is in this lower area of the site as a result of the sites topography. This would further impact the wetland removing the remainder of its area. There is no other feasible location that would work for the stormwater facilty on the site. c. Restore any wetlands or buffer impacted or lost temporarily; and Resoration of this wetland in this location would not be feasible due to the location of the impacts and configuartion of the parcela nd remaining wetland. d. Compensate for any permanent wetland or bufJ`�er impacts by one of the following method.s: i. Restoring a former wetland and provide buffers at a site once�xhibiting wetland characteristics to compensate for wetlands lost; This is not applicable to this site as no historic wetlands are located on the property. ii. Creating new wetlands and buffers for those lost;and A total of 4,200sf of wetland will be filled as well as appro�cimatley 9,900sf of buffer. As described in Code;"Any applicant proposing to alter wetlands may propose to restore wetlands or create new wetlands, with priority first for on-site restoration or creation and then second, within the drainage basin, in order to compensate for wetland losses. Restoration activities must include restoring lost hydrologic, water quality and biologic functions". Additionally, Code states" Where feasible, created or restored wetlands shall be a higher category than the altered wetland. In no cases shall they be lower". ' ' Olympus 4illa/�10-144 Sewall Wetla�rd Consultrng, Inc. December 16, 2010 Page 13 Code Specifies the following mitigation ratios for wetland impacts; i. RATIOS FOR WETLANDS CREATION OR RESTORATION: Wetland Category Vegetation Type Creation/Restoration Ratio Category 1 Forested 6 times the area altered. Scrub-shrub 3 times the area altered. Emergent 2 times the area altered. Category 2 Forested 3 times the area altered. Scrub-shrub 2 times the area altered. Emergent 1.5 times the area altered. Category 3 Forested 1.5 times the area altered. Scrub-shrub 1.5 times the area altered. Emergent 1.5 times the area altered. Wetland B is a Catgeory 3 wetland that is 4,200sf in size. The ��etland is scrub shrub in character and as such, Code requires a 1.5:1 ratio for creation. This means a minimum of 6,300sf of wetland must be created to mitighate for the lost functions of this small wetland to be impacted. Conceptual Mitigation To compensate for the impact to 4,200sf of Category 3 wetland from the proposed access road and storm water facility, 6,300sf of wetland will be created along the southwest side I of Wetland A. This mitigation will create Category 2 wetland for Category 3 impacts. As depicted on the attached Conceptual Mitigation Plan, 6,300sf of area will be excavated out to a similaz depth to the existing wetland to intercept the su�cial groundwater table and create conditions favorable to create wetland hydrology. This area will then be graded back at a slope no steeper than 3:1 (horizontal:vertical}. The area will then be planted with a mix of native trees, shrubs and herbaceous species and will also include several habitat features(logs and snags)to increase its habitat function. The goal will be to create at least 6,300sf of area meeting all three wetland criteria(hydric soils, hydrophytic vegetation, and wetland hydrology)as specified in the Washington State Wetlands Identificalion Manual(WADOE, March 1997). Some minor buffer averaging will be utilized for the western buffer of Wetland A. In addition,approximately 15,OOOsf of the averaged 50' buffer of Wetland A along its west side will be enhanced to increase its functional value and remove exotic blackberry. � Enhancement of this area will include hand removal of blackberry, and installation of a native conifer understory as well as native trees and shrubs in areas that are completely covered in blackberry. This will restore a native shrub stratum in this area through removal of the exotic blackberry and will also initiate the return of a conifer component to this forested area which is not present at this time. � � Olympus ir��!#10-144 Sewall Wetland Co�rsulting, Inc. December 16, 2010 Page 14 The resulting wetland creation and buffer enhancement area will be monitored for 5 years as required by Code. If you have any questions regarding this report, please call us at(253) 859-0515 or at esewall@sewallwc.com . Sincerely, Sewall Wetland Consulting, Inc. 6,�5 Ac� � � T �� ro � ._ ��: Ed Sewall �EDGAR SEWALL� Senior Wetlands Ecologist PWS #212 �.,�i000�y�� , . Olympus Villa Sewall Wetland Consulting, Inc. December 16, 2010 Page 15 REFERENCES Cowardin,L., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service, FWS/OBS-79-31, Washington,D. C. Daubenmire, R. 1959. A canopy-coverage method of vegetational analysis. Northwest Science 33:43-64. Diers,R. and J.L. Anderson. 1984. Development of Soil Mottling. Soil Survey Horizons, Winter 1984,pg 9-15. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1. U. S. Army Corps of Engineers Waterways Experiment Station,Vicksburg,Mississippi. City of Renton Municipal Code Hitchcock, C. and A. Cronquist. 1976. Flora of the Pacific Northwest. University of Washington Press, Seattle, Washington. Munsell Color. 1988. Mun$ell Soil Color Charts. Kolimorgen Instruments Corp., Baltimore, Maryland. National Technical Committee for Hydric Soils. 1991. Hydric Soils of the United States. USDA Misc. Publ. No. 1491. Reed,P.,Jr. 1988. National List of Plant Species that Occur in Wetlands: Northwest (Region 9). 1988. U. S. Fish and Wildlife Service,Inland Freshwater Ecology Section, St. Petersburg, Florida. Reed,P.B. Jr. 1993. 1993 Supplement to the list of plant species that occur in wetlands: Northwest(Region 9). USFWS supplement to Biol. Rpt. 88(26.9)May 1988. ` � _----_ , � _- ____<— . I v II I i . i � Catl gory3 � 0 50 100 150 200 nni � ---�—� � SCALE.� 1"= 100' � nn2 �•�� c�Ea•�+,�> s ____ _ " D Wetland A � Category 2 �; � --- � ` � -_=- AA4 � - , I �... AA6 � � �.r„y.�. ! 2f 20 19 1B i � i jro.c.�a....r v:i�..."�'a. �[ND��PG$ yyll� ro�.�...,s. _2 _ - zz y0L � ,IOB# 10-144 DATE.� AUG 2010 FINKBEINER PROPERTY Sewall wetland Consuiting, Inc. DRAWNBY.� Aw SCALE.� 1"=100' Ecological Services WETLAND DELINEATION MAP REVISED: DESIGNER: ES 2�614 Covington way sE#2 Covington, WA 98042 253-859-0515 Fax 253-852-4732 � t . _ ■ - '-_-_.__ '--___._'._. .'- _- __ . "_-. . � I \/ � 0 50 100 150 200 LOT 5 I 7FiNCT 8 T 11 LOT 10 .� AA1 --- ---- , �°T 9 � ° �� ,� 6 '' �� ; SCALE.� �"= 900' a. � , ;�� ;,� �� t LOT 4 j �;� � .... . . ..� . , . , . ._ .. . . � � � ____ --�-- Wetland A � � �' Category 2 i , -- ,.. "v�c` " � �J : �':' � � ., e �. _= r; ""�. �� n�,a tAT �� t . I — __ , � . . _� f � . �; i 5 I ` � ~ - � �ot z �ot � . AAE 0 i � � _ �..,r��. 2! I 20 f9 18 �v.�.r....... .°".:�� Iy. III� I �o...r....x Z i = - ZZ �IND9��P�S 22' ppL '�� Wetland Creation Buffer Enhancement JOB# 10-144 DATE.� AUG 2010 Sewall Wetland Consulting, Inc. FINKBEINER PROPERTY DRAWNBY.� Aw SCALE.� 1"=100' Ecological Services WETLAND DELINEATION MAP 27614 Covington way sE#2 REVISED: DESlGNER.' ES Covington, WA 98042 253-859-0515 Fax 253-852-4732 r � Olympus Villa Sewall VVetland Consulting,Inc. December 16,2010 Page 16 1.0 CONCEPTUAL MITIGATION PROJECT OVERVIE`V To compensate for the fill of a 4,179sf Category 3 wetland, it is proposed to create 6,300sf of wetland along the west side of Wetland A, a Category 2 wetland, as well as enhance the averaged buffer along the �vest side of the wetland. 2.0 MITIGATION CONCEPT AND GOALS 2.1 Mitigation Concept The mitigation proposal is to enlarge the existing Category 2 wetland on the site by 6,300sf and enhance the western buffer area. The wetland and buffer enhancement areas will be densely planted with native vegetation. The use of diverse nati�e plantings are expected to significantly improve the overall function of the wetland and buffer as it will remove dense thickets of exotic blackberry as well as add emergent and shrub plant communities into what is now, a single class forested wetland. 2.2 Mitigation Goals 2.2.1 Create 6,300sf of emergent, scrub shrub and forested wetland. 2.2.2 Enhance the western wetland buffer and will consist of exotic vegetation removal and replanting with native tree and shrub species. 3.0 CONSTRUCTION SEQUENCE The construction sequence of this project will be implemented as follows: 3.1 Pre-construction meeting 3.2 Construction staking 3.3 Construction fencing and erosion control 3.4 Clearing and grading 3.5 Stabilization of mitigation area 3.6 Plant material installation 3.7 Construction inspection , 3.8 Agency approval ' 39 Monitoring inspection and reporting �, 3.10 Silt fence removal 3.11 Project completion 3.1 Pre-construction bleeting A pre-construction meeting«rill be held on-site prior to commencement of construction, to include the biologist, the City, and the contractor. The approved plans and specifications «�ill be reviewed to e.nsure that all parties involved understand the intent of Olympus�'illa Sewall Wetland Consulting, Inc. December 16,2010 Pa`=e ];' the construction documents, specifications, site environmental constraints, sequeilces, and inspection rec�uirements. 3.2 Construction Staking The limits of clearing and grading near the critical areas will be niarked in the. field by a licensed professional land surveyor prior to commencement of construction activities. 3.3 Construction Fencing & Erosion Control All erosion control measures adjacent to the critical areas, including silt fencing and orange construction fencing, will be installed. Erosion control fencing�vill remain around the mitigation area until clearing, grading and hydroseeding are complete in upland areas outside the critical areas. 3.4 Clearing & Grading Clearing and grading in and near the existing sensitive area will be per the approved Final Mitigation Plans. 3.5 Stabitization of Nlitigation Area � All graded areas in the wetland or buffer will be stabilized with native hydroseed mix or ', mulch upon completion of grading. Orange construction fencing and erosion control fences will be restored(if necessary) and placed around the critical areas. 3.6 Plant Material Installation All plant material will be planted by hand per detail and Construction and Planting Notes. The Mitigation Plan specifies the required size, species, quantity, and location of plant materials to be installed. The contractor will re-seed or over-seed all hydroseeded areas disturbed during the planting process. Upon completion of the planting, the erosion control fencing will be restored and repaired. Plant substitutions or modifications to locations shall be approved in writing by the Owner's biologist prior to installation. 3.7 Construction Inspection Upon completion of installation, the County's biologist will conduct an inspection to confirm proper implementation of the Mitigation Plan. Any corrections, substitutions or missing items will be identified in a "punch list" for the landscape contractor. Items of particular importance will be soils in pits, pit size,plant species, plant size, mulch around pits, and tree staking. Upon completion of planting, if installation or materials vary significantly from the Mitigation Plan, the contractor will submit a reproducible "as-built" drati�ing to the Owner. 3.8 Agency Approval Follo��ring acceptance of the installation by the City, the County biologist should prepare a lette�r �-anting approval of the installation. Olympus�'illa Se�vall�'l�etland Consulting, Inc. December 16, 2010 Pa�e 1S 3.9 R'Ionitoring The site «-i11 be monitored for 5 years to insure the success of the mitigation project. 3.10 Silt Fence Removal �! Erosion control fencing adjacent to the mitigation area will remain in place for at least � one year, and/or until all areas adjacent to the mitigation area have been stabilized. The County's Biologist may recommend that the fencing remain in place for a longer duration. 4.0 CONSTRUCTION AND PLANTING NOTES 4.1 Site Preparation & Grading 4.1.1 The Landscape Contractor will approve existing conditions of subgrade prior to initiation of any mitigation installation work. The Landscape Contractor«�ill inform the Owner of any discrepancies between the approved construction document and existing conditions. 4.1.2 The General Contractor will flag the limits of clearing with orange construction fencing and will observe these limits during construction. No natural features or vegetation will be disturbed beyond the designated "limits of clearing". 4.1.3 The Landscape Contractor will hand grub all blackberry varieties onsite. Weed debris will be disposed of off site. 4.1.4 The wetland area will be excavated to the depths shown on the Final Mitigation Grading Plan and brought to grade with 8"of topsoil. The biologist will be on-site to confirm the grading is acceptable for planting. 4.2 Plant Materials 4.2.1 All plant materials will be as specified in the plant schedule. Only vigorous plants free of defects, diseases and infestation are acceptable for installation. 4.2.2 All plant materials will conform to the standards and size requirements of ANSI Z60.1 "American Standard for Nursery Stock". All plant materials will be native to the northwest, and preferably the Puget Sound Region. Plant materials will be propagated from native stock; no cultivars or horticultural varieties ��ill be allowed. All plant materials will be grown from nursery stock unless othen��ise approved. 4.2.3 All nursery grown plant materials will be in containers or balled and burlapped. Bare root plantings will be subject to approval. � ' 1 • Olympus Villa Sewall Wetland Consulting, Inc. December 16, 2010 Page 19 4.2.4A11 plant materials stored on-site longer than two (2) tiveeks will be organized in ro«�s and maintained by the contractor at no additional cost to the owner. Plant materials temporarily stored will be subject to inspection and approval prior to installation. 4.2.5 Substitution requests must be submitted in writing to the Owner and approved by the Owner's biologist in writing prior to delivery to site. 4.2.6A11 plant materials will be dug,packed, transported and handled with care to ensure protection from injury. All plant materials to be stored on site more than 24 hours will be heeled into topsoil or sawdust. Precautionary measures shall be taken to ensure plant materials do not dry out before planting. Wetland plants will be shaded and saturated until time of installation. Immediately after installation the mitigation planting area will be saturated to avoid capillary stress. 4.2.7 The contractor will verify all plant materials, the quantities shown on the planting plan, and the plant schedule. The quantity of plant materials shown on the plan takes precedent over the quantity on the plant list. 4.3 Plant Installation 4.3.1 All plant materials must be inspected prior to installation to verify conformance of the materials with the plant schedule including size, quality and quantity. Any plant or habitat materials deemed unsatisfactory�vill be rejected. 4.3.2 All plant materials delivered and accepted should be planted immediately as depicted on the mitigation plan. Plant materials not planted within 24 hours will be heeled-in per note 3.2.6. Plant materials stored under temporary conditions��vill be the sole responsibility of the contractor. Plants will be protected at all times to prevent the root ball from drying out before,during, or after planting. 4.3.3 All planting pits will be circular with vertical sides, and will be sized per detail on the mitigation plan and filled with pit soils approved by the Owner's biologist. If native soils are determined to be unacceptable by the Owner's biologist, pit soils will be amended with Cedar Grove mulch or equivalent. 4.3.4No fertilizers will be used within the wetland. In buffer areas only, install "Agriform", or equal plant fertilizer to all planting pits as specified by manufacturer. Fertilizers are allo«red only below grade in the planting pits in the buffer areas. No sewage sludge fertilizer("SteerCo" or "Growco") is allowed in the mitigation area. 4.3.5 All containerized plant materials will be removed from their containers carefiilly to prevent damage to the plant and its roots. Plants remo�°ed from their containers ��-i11 be planted i�llmecliatelv. , Olympus Villa Se«-a11�'�'etland Consulting, Inc. December 16, 2010 Page 20 4.3.6A11 plant materials will be placed as shown on the approved mitigation plan. If the final installation varies from the approved mitigation plan, the contractor will provide a reproducible mylar as-built of the installed conditions. All plant material will be flagged by the contractor. 4.4 Planting Schedule and `Varranty 4.4.1 A fall-winter installation schedule (October 1'` - March 15th ) is preferred for lower mortality rates of new plantings. If plant installation occurs during the spring or summer(March 15th - Oct. lst ) a temporary irrigation system will be required, unless the area can be sufficiently hand-watered. 4.4.2A11 disturbed azeas will be mulched or seeded with native mixes as specified on the plans, as soon as the mitigation area grading is complete. The seed must be germinated and a grass cover established by October lst. If the cover is not adequately established by October ls`, exposed soils will be covered with approved erosion control material and the contractor will notify the Owner in writing of alternative soil stabilization method used. 4.4.3 The installer will warrant all plant materials to remain healthy and alive for a period of one year after fmal acceptance. The installer will replace all dead or unhealthy plant materials per the approved plans and specifications. 4.5 Site Conditions 4.5.1 The installer will coordinate with the Owner and the Owner's biologist for construction scheduling. 4.5.2Landscape installation will begin after the City acceptance of grading and construction. The Owner will notify the Owner's biologist of acceptance of final grading. 4.5.3 Silt fences will be installed as sho�vn on the approved mitigation grading plans. The installer is responsible for repair and replacement of silt fences disturbed during plant installation. No equipment or soils will be stored inside the silt fences. 4.5.4After clearing and grading is complete in the mitigation area, exposed soils will be seeded or mulched. Orange construction fence will be placed around the mitigation area to prohibit equipment and personnel in the mitigation area. 4.5.5 Final grading«�ill be based upon soil conditions found during e�cavation of the mitigation area. , ` I'I Olympus Villa �� Sewall Wetland Consulting, Inc. �� December 16,2010 � Pa�e Z1 4.5.6A11 plant material will be planted ��rith suitable soils per plantinQ details. Soils from planting holes will be spread and smoothed across the mitigation area. 5.0 h1AINTENANCE PROGR�ni This maintenance program outlines the program, procedures and goals for mitigation of the stream and buffer impacts at the mitigation site. This maintenance program�vill be the responsibility of the project owner through the duration of its ownership of the mitigation area, or throughout the duration of the monitoring period,whichever is longer. The maintenance contractor will complete the work as outlined below. 5.1 Maintenance Work Scope 5.1.1 To accomplish the mitigation goals,normal landscaping methods must be modified to include: a. No mowing or trimming of ground cover or vegetation in the mitigation area. b. No placement of fertilizers in the mitigation area. c. No placement of bark mulch or equivalent in the mitigation area, except as noted in the planting details. d. No placement of grass clippings, landscape debris, fill or ornamental plant materials in the mitigation area. 5.1.2 Work to be included in each site visit: a. Remove all litter including paper,plastic,bottles, construction debris, yard debris, etc. b. Remove all blackberry varieties and scotch broom within the mitigation area. All debris is to be removed from site and disposed in an approved landfill. c. Repair silt and/or permanent fencing and signage as needed. 5.1.3 Work to be completed on an annual basis includes: a. Areas containing Himalayan blackberry should be controlled by hand cutting the blackberry and treating the remaining cut stems only with a glyphosphate herbicide such as Roundup or Rodeo (applied by hand, not sprayed). b. Replace dead or failed plant materials. Replacement plantings are to be of same species, size and location as original plantings. Plantings are to be installed during the dormant period. c. Remove tree staking and guy wires from all trees after one year. 5.2 Maintenance Schedule � The O�vner will conduct all items listed in the Maintenance Work Scope on an annual basis. Additional work may be required per the Monitoring Report and as approved by the City Biologist. Additional wark may include removal of the grasses around each shrub and tree, installation of wood chips at each shrub and tree base, reseeding the mitigation area, re-staking existing trees and erosion control protection. , ' ! � ' I Olvmpus Villa I'� Se�t�all Vl'etland Consulting,Inc. �� December 16, 2010 �� Page 22 �� 5.3 `�'atering Requirements 5.3.1 If plantings are installed within the dormant period throughout the winter months (October through March 15th ), watering is not required. However, watering will be . encouraged if plants mortality rises due to dry conditions. 5.3.2If plantings are installed during the summer months (March through October 1St ), a temporary irrigation system will be required, unless the area can be sufficiently hand- watered. The temporary irrigation system may be removed after the first year providing the plantings are established and acclimated to on-site conditions. 5.4 Close-out of Five-Year Monitoring Program Upon completion of the monitoring program and acceptance of the wetland mitigation by the County Biologist, the maintenance of the project will be reduced to include removal of litter and debris, repair of perimeter fencing and signage, removal of noxious weeds and undesirable vegetation, and repair of vandalized areas. 6.0 `'VETLAND AND BUFFER MONITORING PROGRAM 6.1 Sampling Methodology The created wetlands and their associated buffers will be monitored once per year over a five-year period, as required by the City. Monitoring will be conducted using the techniques and procedures described below to quantify the survival and relative health and growth of plant material. A monitoring report submitted following each monitoring -- visit will describe and quantify the status of the mitigation at that time. The monitoring schedule will be determined after the plant installation has been completed. Typically, the first monitoring visit occurs one year after the installation sign-off. 6.1.2 Vegetation The vegetation monitoring consists of two tasks. The first is the inspection of the planted material to determine the health and vigor of the installation. All the planted material in the stream and buffer will be inspected during each monitoring visit to determine the level of survival of the installation. 6.1.3 Hydrology Monitoring of hydrology within the created wetlands will be conducted to confirm that wetland hydrology has been created. ^ sampling points will be established�vithin the created wetlands. At these points monitoring wells will be installed to determine the level of surface or ground«�ater in these areas. I ' • � , Olympus Villa Sewall\�'etland Consulting, Inc. December 16, 2010 Page 23 6.2 Standards of Success ! 6.2.1. Evaluation of the success of the mitigation project will be based upon a 100% plant survival for all planted vegetation at the end of Year l; 90°ro at t}ie end of , Year 2; 85% at the end of Year 3; and 80°ro at the end of Year 5. 62.2. Up to 20% of any stratum can be coinposed of desirable native ��olunteers «�hen ' measuring cover. 6.2.3. No more than 10% cover of non-native or other invasive, e.g., Himalayan blackberry, Japanese knotweed, evergreen blackberry, reed canary grass, Scots broom, English ivy, morning glory, etc. Is pennissible in any monitoring year. Bond-holders arc encouraged to maintain mitigation sites within these standards through the monitoring period, to avoid corrective measures. 6.2.4 Wetland hydrology will be considered to be successfully attained when inundation or saturation within 12"of the surface is present for 2 continuous�i�ecks or more in the growing season(March 15-Oct15). 7.0 CONTINGENCY PLAN 7.1 A contingencyplan canbe implemented ii necessary. Contingency plans can inclu�l� regrading, additional plant installation, erosion control, modifications to hydrology, ��n�i �lant �uh�ti[utions inclu�lin�� t��, size. a��ci location. 7.�' C'arcful attentian to mainteuance is essenti,il in ensurin� th�it ��robl�ms �o no[ arise. Should any of the site fail to meet the success criteria, a contingency plan will b� developed and implemented with the County approval. Such p! >»�� >>�� r��t, ,� ;' case-by-case basis to reflect the failed mitigation characteristic:� 7.3 Contingency/maintenance activities will include, but are not liniit��i � -Replacing all plants lost to vandalism, drought, or disease, as necessary. � -Replacing any plant species with a 20 percent or greater mortality rate with the samc species or similar species approved by the City Biologist. -Irrigating the stream area only as necessary during dry weather if plants appear to be too dry, with a minimal quantity of water. -Reseeding stream and buffer areas�vith an approved grass mixture as necessary if erosion/sedimentation occurs. -Removing all trash or undesirable debris from the wetland and buffer areas as necessary. Soil Map—King County Area,Washington � (Forest Ridge) � - � � - � � - � � 564560 564600 564840 56468D 564720 564760 564800 564840 S6A880 564920 Sfi4960 47'25 43„ 47'29'44" i - .� . _ , . .�.� �I ,�,..... .,�y,,�... . .... ... � � ��:� �� f^` � �:.,� , I� ;n';r� �� .Tn,��, y. 4 'Kj N a 1��'�TU� � � ��i ry � sn. 1 ."^ '"""b� � M�M �4 N. � ,np � yM, [,�i,�? k,i� �, { '4%' � � � �� '�;.�� . �. aAF�' �p�r.�y,��y �"�� ,;� . �� a' N �, , � .� 'r .,�,'�''',. a A°'R�'j'k'�' r � `_. ("°. . �„� �n r�� g�..,'°�f - �r w � v � � � � �� rt'` � �: � z""a r '�✓�� ,��'�''p•.�,.��.', � y��a�u��A fiF,� �, � y°�^, &'�, m � '�� ,�: r��na'� � � ��_ ��:�'kz r,� aa;� � h�r�� "° ��' • �nA � g 5 �.- k X .., �, C vp i1� � �, i .A�� '�k r; a} �j;�y , ��w � �� At%.. F y�t' ;,`. � v } '`�,,�. �#'� �` . � �•1( � " �'' �• � �.��` �3A. t�a .. . �. �� , .,.,.� ,., , .�, .. 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P�' � � � k . � � .� , ... �M � .y. � . . � , � �� :r-. �+��7' ..:s5, 'f!" i+s ��,,�„�,t�,�+r» a.r, �A x �� .� :w.r" . � . �°sw'ifi�:y -t�+..u �„� � � � � ... ,\.. �d �� i r� � § , .�:Qr" ��.. � �,;`�n e Y^:. � . k �4d{ � , 'f.wf. .y.MyrF; ,d , � i ,�� ,�r. „�,��ry.'. b �, :�' .JY� T .. ��'w � , { f. y� � , M,rF �` .l.. 1 �� ' � w�� .t' � M1 �� '1y�t � . . - f �R�'nn ''��„ .��° �+�. �, � .: �'..�.. . I i ,,M„ � � d�t �� .�ti° d _. ' .,� ! . 1�F�"MI��:, ,r: I� 'G r i �, �°l.�:p 'o� i.� ', n � � 1 , y, � . � ? �. : _ �.� �: . . X � r . 1.�; � my�fnte ' 1 � tA:�e :� £�}}� �_ ..C' A;� �Y �'� a 7 � '�� b � S�` • , �1 f� � ��.�� p � ' * . . A .�.� M' 'D� qY � , . C �.�4'� � p b �jS:, . if��. � � M o �F#F � x � y� � � y � � ry MY4M �-1 . :. � 4.'��T Y� 'Y �� ;.: q�;�F" ��.:.{� . ' N a � N � r. ' � .;�:. �� ..�t�'" . � S�r. i. -' '� �� { 'y�'"� h . �`� *� �`�"�� 'r ,. . . �� . ' �,� •4 � :-e� � '. � ..; ,. t+.,-. . �. .,. g ..` r � ,_a..- ��.N< < , ��µ � . � �� 4" Y.a + 47°29'34" 1h n; ' '�� 47'29'34" 584580 564600 � 564640 564680 5ti4�710 � 564760 5648DD 56 40 Ssaitau 5sar7�C 564960 � � Map Scale:12,1301f prhted onA slze(8S"x 11'�sheet � ro � N Meters � A 0 25 50 1D0 150 Feet 0 100 200 400 600 U_S� Natural Resources Web Soll Survey 12/13/2010 �'� Conservation Service National Cooperative Soit Survey Page 1 of 3 Soii Ma�King County Area,Washington - - (Forest Ridge) - MAP LEGEND MAP INFORMATION Area ot Interest(Aol) � Very Stony Spot Map 5cale: 1:2,130 if printed on A size(8.5"x 11")sheet. �"��`� Area of Intereet(AOI) t Wet Spot The soil surveys that comprise your AOI were mapped at 1:24,000. solls � other Please rely on the bar scale on each map aheet for accurate map Soil Map Units measurements. Speclal Line Features Speelal Polnt Features Guny Source of Map: Natural Resources Conservation Service �.i Blowout Web Soil Survey URL: http://websoilsurvey.nres.usda.gov . . Short steep Sbpe Coordinate System: UTM Zone 10N NAD83 � Borrow Pit , ,., other This product is generated from the USDA-NRCS certified data as of X Clay Spot the version date s listed below. P��Iltical Features ( ) ♦ Closed Depression � Cities Soil Survey Area: King County Area,Washington ;r, Grevel Pit Q pLss Township and Survey Area Data: Version 6, Sep 22,2009 :. Gravelly Spot Range Date(s)aerial images were photographed: 7/24/2006 PLSS Section q� Lendfill The orthophoto or other base map on which the soil lines were water Featurcs com iled and di dized rotrabl differs from the back round ft Lava Flow Oceans P g P y g imagery displayed on these maps.As a resuit,some minor shifting ,� Marsh or swamp _ Stroams and Canals of map unit boundaries may be evident. x Mine or Querry Tianspottatlon � Miacellaneous Water � Rails � Perennial Water ,�y. Interatate Highweys .i Rock Outcrop US Rautee ' + Saline Spot Mnjor Roads Sandy Spot ,� Local Roads j_- Severely Eroded Spot p Sinkhok j� Slide or Slip �f Sodic Spot $ Spoil Aree Q Stony Spot U_.�4U_A Natural Resources Web Soil Survey 12/13/2010 Conservation Service National Cooperative Soil Survey Page 2 of 3 . t Soil Map-King County Area,Washington Forest Ridge Map Unit Legend King County Area,Washington(WA633} Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI AgC Aldervvood graveity sandy loam,6 to 15 6.8 100.0°,6 percent slopes Totals for Area of Interest 6.8 100.0°�G �5� Natural Resources Web Soii Survey 12/13/2010 � Conservation Service National Cooperative Soil Survey Page 3 of 3 , Map Unit Descriptio�:Alderv✓ood gravelly sandy loam,6 to 15 percent slopes— Forest Ridge King County Area,Washington King County Area, Washington Ag�Alderwood gravelly sandy loam, 6 to 15 percent slopes Map Unit Setting Elevation:50 to 800 feet Mean annual precipifation: 25 to 60 inches Mean annual air temperature:48 to 52 degrees F Frost-free period: 180 to 220 days Map Unit Composition Alderwood and similar soifs: 95 percent Minor components: 5 percent Description of Aldervvood Setting Landform: Moraines, till plains Parent material: Sasal till with some volcanic ash Properties and qualities Slope:6 to 15 percent Depth to restricfive feafure:24 to 40 inches to dense material Drainage cfass: Moderately well drained Capacity of the most limifing layer to transmit water(Ksat):Very low , to moderatety low(O.OU to 0.06 in/hr) Depth to water table:About 18 to 37 inches Frequency of flooding: None Frequency of ponding: None Available wafer capaaty. Very low(about 2.5 inches) Interpretive grdups Land capab+lity(nonirrigated):4s Typical profile 0 to 12 inches:Gravelly sandy loam 12 to 27 inches:Very gravelly sandy loam 27 to 60 inches:Very gravelly sandy loam Minor Components Norma Peroent of map unit: 1 percent Landform: Depressions Bellingham Percent of map unit: 1 percent Landform: Depressions Seattle Percent of map unit: 1 percent Landform: Depressions Tukwila Percent of map unit: 1 percent �5� Natural Resoutces Web Soil Survey 12/13l2010 � Conservation Service Natio�al Cooperative Soil Survey Page 1 of 2 � - WETLAND DETERMINATION DATA FORM—Western Mounta�ns,�Jalleys,and�oast�egion ---- P�o e�,s�te: o�� U,ll� �� . o F �' j _T/� City/County: � ��"� Sampling Date: g�p�,�� ApplicanUOwner: ,3i�� /C�-�l��^�c�t State:� Sampling Poi�t: D irnestigator(s): ��' S{w��` Section,Township,Range: S 1/ T Z 3 N jZ 5 E Landform(hillslope,teRace,etc.): Local relief{concave,convex,no�e): Slope�%): Subregion(LRR): Lat: Long: Datum: Soil Map Unit Name: ��^'�� NWI dassificatio�: Are dimatic/hydrologic co�ditions o�the site typipl for this time of year� Yes_�No (If no,explain in Remartcs.) Are Vegetation ,Soil ,or Hydrology significa�tly disturbed? Are`Normal Circumstances'prese�t? Yes ✓ No i Are Vegetatio� ,Soil ,or Hyd�ology naturally problematic? (If needed,explai�a�y answers in Remarlcs.) � SUMMARY OF FINDINGS— Attach site map showing sampling point locations,transects, important features,etc. Hydrophytic Vegetation Present? Yes � No Is the Sampled Area / Hydric Sal Present? Yes � No within a Wetland? Yes v No Wetland Hydrdogy P�esent? Yes � No Remarks: VEGETATION—Use scientific names of plants. � Absokde Dominani kidicator Dani�ance Test worksheet• Tree Stratum (Plot size: ) �6 Cover Saecies? Status Number of Domi�a�t Species 1. �/^�� '�6�� ^'C- That Are OBL,FACW.or FAC: � (� 2. � Total Number of Dominant i 3. Spedes Aaoss AN SUata: � (B) 4. PerceM of Dominani Species =Total Cover �t Are OBI,FACYY,or FAC: �� (A/B) Sadi�a/SFxub Stratum (Pbt size: 1 1. �v 6..cS 5/X-��i� �[S� F��- Prevalence Index worksheet: 2. Total%Cover of: MultiplY bY 3. OBL species x 1= 4. FACW species x 2= 5. FAC species x 3= =Total Cover FACU species x 4= Herb Stratum (Plot size: _ 1 UPL species x 5= �. /�y'��...ti. F:/,X-.�✓►�+•-L Fi,c 2. (ily ct�t •t C�/-� ColwnnTolals: (A) (8) Q(3 L --T 3. Prevalence l�dex =B/A= 4, Hydrophytic Vegetatioa Indicators: 5_ Dominance Test is>50°� g. Prevalence Index is<_3.0' 7. Morphologipl Adaptations'(Provide supportng $ data i�Remartcs or on a separate sheet) Problematic Hydrophytic Vegetation'(Explai�) =Total Cover — Woodv Vne Stratum (Pbt size: ) �. 'Indicators of hyd�c soil and wetland hydrology must 2 be present,unless disturbed or problematic. =Total Cover Hydrophytic Vegetation � °�Bare Ground in Herb Stratum %Cover of Biotic Gust Present? Yes '�No Remarks: US Army l;orps ot tngmeers Westem Mountains,Vallcys,and Coast-Versio�2A SOIL Sampling Point: 7�� Profile Desc�ptio�: (Describe to the depth needed to document the indicator or confirm the absence of i�dicators.) Depth Matrix Redox Featu�es (inchesl Color(moisfl % Color(moisU °/a Tvpe, Loc Texture Remarks /!v /O YfZ Z/Z �r�.-� �'� "f` '_7"_- 'T : C=Concentration.D=Oe letio�,RM=Reduced MaUix,CS=Covered or Coated Sand Grains. ZLocaGon: PL=Pore Lini ,M=Matrix. Hydric Soil I�dicators: (Applicable to a{I LRRs,unless othemise noted.) Indicators for Problematic Hydric Soils': Histosol(A1) _ Sarxly ReAox(S5) _ t cm Muck(A9)(LRR C) Histic Epipedon(A2) _ Stripped Matrix(S6) _ 2 cm Mudc(A10)(LRR B) Bladc Histic(A3) _ Loamy Mucky Mineral(Ft) _ Reduced Verfic(F18) _ Hydroge�Sulfide(A4) _ Loamy Gleyed Mahix(F2) _ Red Parent Material(TF2) StraGfied Layers(A5j(lRR C) _ Depleted Matrix(F3) _ Other(E�lain in RemaAcs) 1 cm Mudc(A9)(LRR D) �Redox Dark Surface(F6) Depleted Below Dartc Surface(A11) _ Depleted Darlc Surface{F� Thidc Dark Surface(Al2) _ Redox Depressions(F8) 'Indicators of hydrophytic vegetatan a�d Sa�dy Mudcy Mineral(S1) _ Vemal Pools(F9) wetland hydrology must be present, Sandy Gleyed Matrix(S4) unless disWrbed or problematic. Restrictive Layer('rf presen�: Type: Depth(inches): Hydric Soil Present? Yes No Rema�lcs: HYDROLOGY Wetla�d Hyd�ology Indicators: Primarv I�dicators(mi�imum of one�uired:chedc atl that aoolvl Secondarv Indicators f2 or mo�e reau"aedl Surface 1Mater(A1) _ Satt Gust(611) _ Water Marlcs(B1)(Riverine) ' _ High Water Table(A2) _ Biotic Crvst(612) _ Sedime�t Oeposits(62)(Rive��e) Saturation(A3) _ AquaGc InveRebrates(613) _ Drift Deposits(63)(Rivrrine) �ater Martcs(61)(Nonriverine) _ Hyd�ogen Sulfide Odor(C7) _ Orainage Pattems(610) •Sedime�t Deposits(62)(No�riverine) _ Oxidized Rhizospheres along Living Roots(C3) _ DrySeason Water Table(C2) Drift Deposits(83)(Nonrive��e) _ Presence of Reduced Iro�(C4) _ Gayfish Burrows(C8) Surface Sol Gadcs(66) _ Rece�t Iron Redudion in Tilled Soils(C6) _ Saturatio�vsible on Aerial Imagery(C9) Inu�dation Vsible on Ae�al Imagery(B7) _ Thin Mudc Surface(C7) _ Shallow Aquitard(D3) Water-Stai�ed Leaves(89) _ Other(Explain in Remarks) _ FAGNeutral Test(D5) Field Observations: Surface Water Present? Yes No f Depth(inches): Water Table Present? Yes No � Depth(inches): Saturation Present? Yes No ✓ Depth(inches): Wetfa�d Hydrology Prese�t? Yes '/ No indudes ca illa frin e Describe Recorded Data(stream gauge,moniloring well,aerial photos,previous i�spedions),rf available: Remarks: �c s S�� r�,.-y�� d✓ s-�✓,J j y�� ,' w-./�,� /ti,•_-G=r � US Army Corps of Engineers Western Mountains,Valleys,and Coast-Version 2.0 . l�� .«. WETLAND DETERMINATION DATA FORM—Western Mounta�ns,�/alleys�and Coast u Pwc-� f`t ProjecUSite: d��5 V��1� CityfCounty: �' � �� l��`�`� Sampling Date: g-ZU �� ApplicanUOwner. ��1 F�-�l�� State:� Sampling PoinL ��Z investigato�(s): ��' ��^-�� Section,Township,Range: S �l T Z 3/v JZ 5 E landform(hillslope,terrace,etc.): Local relief(conpve,convex,none): Slope{%): Subregion(lRR): �at: �o�g: Datum: Soil Map Unit Name: ��v��"'�� NWI dassifiplion: Are dimd6c/hydrologic co�ditions on the site typical for this time of year? Yes�No (If no,explain in Remarks.) Are Vegetation ,Sol ,or Hyd�ology significaMty disturbed? Are'Nonnal Circtimstances"preseM? Yes ✓ No i Are Vegetatio� ,Soil ,w Hydrology naturally problema5c? (If needed,e�cplain any answers in Remartcs.) SUMMARY OF FINDINGS— Attach site map showing sampling point locations,transects, important features,etc. I Hydrophytic Vegetation Prese�t? Yes No ✓ I Is the Sampled P.rea i Nydric Sal Present? Yes No� withia a Wedand? Yes No I Wetla�d Hydrdogy Present? Yes No� Remacks: VEGETATION—Use scientific names of plants. ' Absolute Dorta�a�t Indiptor pomi�anceTestworksheeC Tree Stratum (Pbt size: 1 X Cover cies? Status 1. a'�^ivS r✓� � Number of Datwnant Speaes // �b �G- That Are OSL.FACW.or FAC: �- (/� 2. Total Number of Domi�ant 3. Spedes Aaoss Ad Strala: (B) 4. Percent of Dominant Species =Total Cover That Are OBI,FACW,or FAC: �� (AJB) SapGrwlShrub Stratum (Pbt size: ) �. �v��S c�c1��•f �► C�C_ Prevalencelndezworicsheet- 2. ��•-S O��SCoiG�— yo �i�GtJ Total 96 Coverof: Muttiplv bv: 3. OBL species x t= 4. FACW species x 2= 5. FAC species ��v x 3= 3 �d =Total Cover FACU speaes 4 r� x�= JG 6 Herb Stratum (Plot size:—� iy 1. /�7`�/[�s vn 1?�.l.�v� �� UPL species O x 5= Z4!� � Colurm Totals: C F�V (q) G¢O �g) 2. ��u �,s/�c�-•.. n-+�.-,t-�^ �_ � 3�Cv �n 3. Prevalence Index =BJA= 4. Hydrophytic VegefaGon I�dicators: ', 5. _ Daninance Test is>509G I g. Prevalence I�dex is<_:i.0' 7. Morphological Adaptations'(Provide suppoRing 8 data in Rema�lcs o�o�a sepa�ate sheet) =Total Cover — Problematic Hydrophytic Vegeta6on'(F�cplain) Woodv Vne Stratum (Pbt size: l i �_ 'Indiptors of hydric soil and we0and hydrology must I 2 be present,u�less disturbed or problematic. =Total Cover Hydrophytic � Vegetatioo %Bare Grou�d in Herb Stratum ya Cove�of Biotic Gust Present? Yes No Remarks' US Army Corps of Engineers Westem Mountains,Valleys,and Coast-Version 20 II' SOIL Sampiing Point:�1�� Profile Desc�ption: (Oescribe to the depth needed to document the indicator or confirtn the absence of indicators.) Depth Matrix Redox Features (incfiesl Color(moist) % Colo�(moisQ % Tvoe Loc Texture Remarlcs ' /Q /oY/2 Z/?•S 5��,/,.-.. /G 7-5 Y� ��s/3 , •'- 'T : C=Concentratio�,D= letio�,RM=Reduced MaUix,CS=Covered or Coated Sand Cxains. ZLocation_ PL=Pore Liri ,M=Matrix. Hydric Soil Indicators: (AppGcable to ali LRRs,unless otherwise noted.) Indicators for Probiematic Hydric Soils': _ Ffistosol(A1) _ Sandy Redoz(SS) _ 1 cm Mudc(A9)(LRR C) I Histic Epipedo�(A2) _ Stripped Matrix(S6) _ 2 cm Mudc(A10)(LRR B) Bladc Histic(A3) _ Loamy Mudcy Mineral(Ft) _ Reduced Vertic(F18) _ liydrogen Sulfide(A4) _ Loamy Gleyed Matriz(F2) _ Red PareM Material(TF2) Stratified Layers(AS)(LRR C) _ Depleted Matrix(F3) _ Othe�(E�lai�in Remarks) 1 cm Mudc(A9)(LRR D) _ Redox OaAc Surface(F6) Depleted Below Dartc Su�face(A11) _ Depleted Dar1c Surface(F7) _ Thidc Dartc Surface(At2� _ Redox Oepressans(F8) 'kidicators of hydroQhylic vegetatio�and Sandy Mudcy Minetal(St) _ Vemal Pools(F9) wetlard hydrdogy must be preserri. '� Sandy G�eyed Matrix(S4) u�less dishxbed or p�oble�natic. Restrictive Layer('rf prese�t): Type: � I Deptfi(inches): Hydric Soil Present? Yes No Rema�ics: NO .^� -.., �x.�- HYDROLOGY I Wetland Hydrology Indiwtors: Primarv Indicators(minimum of one required:chedc aq that aoolvl Seoo�darv Indicators(2 or more revuired) Surtace Wate�(A1) _ Salt Crust(611) _ Water Marks{61)(Riveri�e) _ High Water Table(A2) _ Biotic Crust(612) _ Sediment Deposits(62)(Rirerine) Saturatio�(A3) _ AquaGc Inv�ertebrates(613) _ Drift Deposits(63)(Riveri�e) � Water Martcs(61)(Nonriveri�e) _ Hydrogen Sulfide Odor(Ct) _ Drai�age Pattems(B10) SeCime�t Deposits(B2)(No��iverine) _ O�ddized Rhizospheres alo�g Living Roots(C3) _ DrySeaso�Water Table(C2) Drift Deposits(63)(No��verine) _ Presence of Reduced kon(C4) _ Crayfish Burrows(C8) Surface So�Gacks(66) _ Recent Iro�Redudio�in Tiped Sals(C6) _ SaturaGon vsible o�Aerial Imagery(C9) I�undation Vsible o�Aerial Imagery(B� _ Thin Mkicfc Surface(C7) _ Shallow Aquitard(03) Water-Stained Leaves(89) _ Olher(Explain in RemaAcs) _ FAC-tJeuhal Tesl(DS) Field�bservaGons: Surface Water Present? Yes No �Depth(inches): Water Table Present? Yes No �/Depth(inches): / Saturation Present? Yes No ✓Depth(inches): Wet(and Nydrology PresenCt Yes No �� indudes ca ilta fin e Describe Recorded Data(stream gauge,mo�itoring well,ae�al photos,previous inspedions),if available: Remarks: ' US Army Corps of Engineers Weslern Mounlains,Valleys,and Coast-Version 2.0 , : WETLAND DETERMINATION DATA FORM-Western Mountains,�/alleys�and-Coast-Regio� - ProjecUSite: DII�H/I y.S V/ �f� City/County: �'�7/�� l�'''�^�Sampling Date: g��'l� �, IicanUOwner. ,�.j� /�'i � �pc � APP c '"'�� State: Sampling PoinC �P�3 �r Imestigator(s): �`� d�� Section,Township,Ra�ge: S 1 � TZ 3 �`' 2 SF Landfortn(hillslope,lerrace,etc.): local relief(concave,convex,none): Slope(°/a): Subregion(LRR): Lat: Long: Datum: Soil Map Unit Name: ��'1�^'� NWI dassificaGon: Are dimatic J hydrologic condi6ons o�[he sile typical for this Gme of year? Yes No (If no,explain in Remarfcs.) /1re Vegetation ,Soil ,or Hydrology sgnifiq�tly disturbed? Are'Normal Circumstances'present? Yes No Are Vegetatio� ,Soil ,or Hydrology naturally problematic? (If needed,explai�any answers in Rema�tcs.) SUMMARY OF FINDINGS— Attach site map showi�g sampling point locations,transects, important features,efc. Hydrophytic Vegetation Present? Yes � No ' Hydric Sal Present? Yes � No Is the Sampled Area / Wetla�d Nydrology Present? Yes_�No W��n a Wefla�d? Yes ✓ No Remarks: II VEGETATION—Use scientific names of plants. II Absolute Dom«fant Indicator pominanceTestworlcsheet ' Tree Stratum (Pbt size: 1 %Cover Saecies? Status Number of Domi�ant Species [� �. A/.�.vs r'✓�i'C � �f� That Are OBL,FACW,or FAC: -T (A) 2 Total Number of Domi�ant 3- Species Across Aq Strafa: � (B) 4. Percent of Dominant Species -TO��CO� That Are OBL,FACW,or FAC: �� (AB) SaaGnalShrub Stratum (Pbt size: ) 1. ��i t�S ��-c c/� �i r�J L/O F�-� Prevalence Indez worksheet 2 Total%Cover of: MuttiaN bv: 3 OBL spedes x t= FACW species x 2= 4. 5 FAC species x 3= FACU species z 4= =Total Cover Herb Stratum (Pbt size: 1 UPL species x 5= 1. /��/'rt�--. Fi'�:C ��M � �� Column Totals: (� (B) y. C c.� .,�. R.v�� 'i�0 t�3 t�- p��alence Index =B/A= 3� Hydrophytic Vegetation I�dicators: 4- 1-Rapid Test for Hydrophytic Vegetation 5- 2-Domi�a�ce Test is>50% 6• 3-Prevalence Index is�.0' �• 4-Morphobgical Adaptations'(Provide supporting g, data in Remarks or o�a separate sheet) g, 5-Wetland No�-Vascula�Plants' �p. Problematic Hydrophytic Vegetatio�'(Explain) ��. 'Indicators of hydric soil a�d wetla�d hydrology must =Total Cover �Present,unless disturbed or problematic. Woodv Vine Stratum (Pbt size_ 1 �� Hydrophytic 2. Vegetation =Total Cover P�esent? Yes_�No °o Ba�e Ground in Herb Stratum Remarks: U5 Army Corps of Engineers Westem hlountains,Valleys,and Coast-Version 2.0 i SOIL Sampling Point: �� Profile Descriptio�: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features (inches) Cobr(moist) % Color(moisp % Tvpe Loc Texture Remarics /li �0 y/� zl/ ��.� 'T : C=Concentratio�,D=De letion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. Zlocation: PL=Pore Linin ,M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': Histosol(A1) _ Sandy Redox(S5) _ 2 cm Muck(A10) Histic Epipedon(A2) _ Stripped MaVix(S6) _ Red Pa�ent Material(TF2) Btadc Histic(A3j _ Loamy Mudcy Mi�e�al(F1)(e:cept MLRA 1) _ Very Shalbw Dark Surface(TF12) _ Hydrogen Sulfide(A4) _ Loamy Gleyed Matrix(F2) _ Other(Explai�in Remarks) Depleted Bebw Darlc Surface(At t) _ Depleted Matrix(F3) '�Thick Darfc Surface(Al2) _ Redox Daric Surface(F6) 'Indiptors of hydrophyGc vegetation and Sandy Mudry Mineral{S1) _ Depleted Dark Surface(F7) wedand hydrology must be present, Sandy Gleyed Matrix(S4) Redox Depressio�s(FS) unless disturbed or problemafic. Restrictive Layer(if present): Type: ,/ Depth(inches): Hydric Soil Present? Yes v No Rema�ics: HYDROLOGY Wetland Hydrology Indicators: Primarv Indicators(minimum of one required:chedc all that aoalv) Seco�darv Indicators f2 or more requiredl Surface Water(A1) _ Wate�-Sfained Leaves(B9)(except _ WaterStained Leaves(89)(MIRA 1,2, _ High Water Table(A2) MLRA 1,2,4A,and 46) 4A,and 46) Saturatio�(A3) _ Salt Crust(611) _ Drainage Pattems(B10) �Water Marks(61) _Aquatic Invertebrates(613) _ Dry-Season Water Table(C2� ✓Sediment Deposits(62) _ Hydrogen Sulfide Odo�(C1) _ Saturation�sible on Aerial Imagery(C9) Drift Deposits(63) _ Oxidized Rhizospheres abng Living Roots(C3) _ Geomorphic Position(D2) Algal Mat or Crust(B4) _ Prese�ce of Reduced Iro�(C4) _ Shallow Aquitard(D3) Iron Deposits(B5) _ Recent Iron Reducfion in Tilled Soils(C6) _ FAC-Neutral Test(D5) Surface Soil Cracks(66) _ Stunted or Stressed Plants(D1)(LRR A) _ Raised Ant Mounds(D6)(LRR A) Inundation Visible on Aerial Imagery(87) _ Other(Explain in Remarks) _ Frost-Heave Hummocks(D7) _ Sparsely Vegetated Concave Surface(B8) Field Observations: Surface Water Present? Yes No r/ Depth(inches): Water Table Prese�t? Yes No f Depth(inches): Saturation Present? Yes No �Depth(inches): Wetland Hydrology Present? Yes � No (indudes ca illa fi�ge) Describe Recorded Data(stream gauge,mo�itoring well,aerial photos,previous inspections),if available: Remarics: ` US Army Corps of Engineers Western Mountains,Valleys,and Coast—Version 2.0 . � . - i � WETLAND DETERMINATION DATA FORM—Weste�n Mountalns,VaU,eys�a�d�oast-Region -- Project/SRe: ��/-�/I LS V/ �l� CitylCounty: C'�J/`F l�`'F�N Sampling Date: g��'�� N C� �' AppiicanUOwne�: �.j� Fi � pc n^-�ti State: w� SampGng Point b�'� � �� I Inves6gatoKs): � d�F""�^� Section,Township,Range: S 1 � 1—Z3 � 2SF � Landfortn(hillslope,lerrace,etc.): Local relief(concave,convex,no�e): Slope(%): Subregion(LRR): Lat: Long: Datum: �, Soil Map Unit Name: /! ��l�^'� NWI dassification: �I A�e dima6c/hydrologic coaditions on the site typical for this lime of year? Yes No {If no,explai�in Remarlcs.) I Are Vegetation ,Soil ,or Hydrology sgnificantly disturbed? Are'Nortnal Circumstances'present? Yes No I! Are Vegetation ,Soil ,or Hydrology naturatly problemaGc? (If needed,explain any a�swers in Remarks.) SUMMARY OF FINDINGS— Attach site map showing sampling point locations,transects,important features,etc. i, Hydrophytic Vegetation Present? Yes No / Hydric Sal Present? Yes No� �s the Sampled Area � Wetland Hyd�dogy Prese�t? Yes No withi�a Wetla�d? Yes No Remarks: � i VEGETATION—Use scientific names of plants. Absolute Domi �t Indicator pominance Test wa�ksheet Tree Stratum (Pbt size: ) °�Cove� Saecies? Status Number o(Dominant Species 1. That Are OBL,FACW,or FAC: Z (A) Z Total Number of Do�„nant 3• Species Auoss Ap Strata= � (B) 4. Perce�t of Dominant Species f-1 SaalinaJShrub Stratum (Pbt size: � -T�� t Are OBI,FACW,or FAC: _��v (A!B) �. jZvfjvs � i�Tco�G� �� Prevalence I�dex workshee� 2 Total�a Cover of: Multiph�bY: OBl species x 1= 3. 4. FACW species � x 2= � FAC species �5 x 3= �� 5 _To�'�� FACU species � � z 4= � 0� Hesb Sbratum (Plont s¢e: } UPL species x 5= 1. /`t�i'os�-t s v!) Fi4'L Column Totals: / �V (<U 3 7'� (g) 2' Prevalence Index =B/A= 3' � � 3• Hydrophytic VegetaUoo Indicators: 4• 1-Rapid Test for Hydrophytic Vegefatio� 5• 2-Dominance Test is>50% 6• 3-Prevale�ce Index is�.0' 7- 4-Morphological Adapta6ons'(Provide supporti�g g_ data in Remarks or on a separate sheet) g, 5-Wetland No�-Vascular Plan4s' �p_ Problematic Hydrophytic Vegeta6on'(Explain) ��. 'Indicators of hydric soil and wetland hydrology must =Total Cove� �P�esent,unless disturbed or problematic. Woodv Vine Stratum {Pbt size: 1 1. Hydrophytic � 2, Vegetation =Total Cover Present? Yes No °6 Bare Ground i�Herb Stratum Remarks: US Army Corps of Engineers Western Mountains,Valleys,a�d Coasl-Version 2.0 SOIL Sampiing Point: �r� � Profile Descriptio�: (Describe to the depth needed to document the indicator or confiirm the absence of indicators.) Depfh Matrix Redox Features (inches) Color(moistl % Color(moist) % Tvpe Loc Texture Remarks � /oYh z/�-� 1....-.. l� /D�� z/zr 'T : C=Co�centration,D=De letion,RM=Reduced Matrix,CS=Cove�ed or Coated Sand Grains. ZLocation: PL=Po�e Li�in ,M=Matrix. Hydric Soil Indicators: (Applicable to ail LRRs,unless otherwise noted.) Indicators fo�Problematic Hydric Soils': Histosol(A1) _ Sandy Redox(SS) _ 2 cm Muck{A10) Histic�Epipedon(A2) _ Stripped Matrix(S6) _ Red Parent Material(TF2) Black Histic(A3) _ Loamy Mudcy Mineral(Ft)(except MLRA 1) _ Very Shallow Darlc Surface(TF12) _ Hydrogen Sulfide(A4) _ Loamy Gleyed Matrix(F2) _ Other(Explai�in Remarlcs) Depleted Below Dark Surface(A11) _ Depleted Matrix(F3) Thick Darfc Su�face(Al2) _ Redox Oark Su�face(F6) 'Indicators of hydrophytic vegetation and Sandy Mucky Mineral(S7) _ Depleted Dark Surface(F7) wetland hydrobgy must be present, Sandy Gleyed Matrix(S4} Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present�: Type: D�p�C��S)� Hyd�ic Soil Present? Yes No_� Remarks: HYDROLOGY WeUand Hydrology Indicators: Primarv Indicators fminimum of o�e reauired:chedc all that a�olv) Secondarv I�diqtors(2 or more reauired) Surface Water{A1� _ WaterStained Leaves(B9)(ezcept _ Water-Stained Leaves(B9)(MIRA 1,2, High Water Table(A2) MLRA 1,2,4A,and 48) 4A,and 4B) _ Satura6on(A3) _ Salt Crust(611) _ Drainage Pattems(610) 'i _ Wate�Marlcs(81) _ Aquatic Inve�tebrates(813) _ Dry-Seaso�Water Table(C2) I Sediment Deposits(B2) _ Hydroge�Sulfide Odor(C1) _ Saturation Visible on Aerial lmagery(C9) I Drift Deposits(63y _ Ozidized Rhizospheres abng Living Roots(C3) _ Geomorphic Position(D2) Algal Mat or Crust(64) _ Presence of Reduced Iron(C4) _ Shallow Aquitard(D3) Iron Deposits(BS) _ Recent Iron Reduction in Tilled Soils(C6) _ FAGNeulral Test(D5) _ Surface Soil Cracks(66) _ Stunted or Stressed Planls(D1)(LRR A) _ Raised Ant Mounds(D6)(LRR A) Inundation Ysible on Aerial Imagery(B7) _ Other(Explain in Remarics) _ Frost-Heave Hummocks(D7} _ Spa�sely Vegetated Concave Surface(B8) Field Observations: Surface Water Present? Yes No�Depth(inches): Water Table Present? Yes No `Depth(i�ches): Satura6on Present? Yes No ✓ Depth(inches): Wetland Hydrology Present? Yes No � i�cludes capilla frin e} Describe Recorded Oata(stream gauge,monitoring wel1,aerial photos,previous inspections),if available: Remarks: ' US Army Corps of Engineers Westem Mountains,Valleys,and Coast—Version 2.0 WETLAND DETERMIHATION DATA FORM-Western Mountalns,-YalJeys,-�nd Coas�Region — ]� )/ 1C N�� ProjecUSite: ��t�M/�hS ✓/ /f� CityfCounty: C'�J/o! l�-'�N Sampling Date: gl�'�� w�#- ApPlicanUOwner �.�� i � U��'�^-��t State: �'�Pr Sampli�g Point �� "Z � Investigator(s): �is' ��"'� Sectio�,Township,Range: S 1 � TZ3 � 2SF Landfortn(hillslope,lerrace,etc.): �ocal relief(concave,co�vex,no�e): Slope(%): Subregion(LRR): Lat: Long: Datum: Sal Map Unit Name: // ��1�^'� NWI dassification: Are Uimatic/hydrologic co�ditions o�the site typical for this lime of year? Yes No (If no,explai�i�Remarks.) Are Vegetatio� ,Soil ,or Hyd�ology significantly disturbed? Are'Nortnal C'awmsta�ces'present? Yes No_ !ue Vegetatan .Soil ,or Hydrology naturally problemalic? (If needed,explai�any a�swers in Remarks.) SUMMARY OF FINDINGS- Attach site map showi�g sampling point locations,transects,important features,etc. Hydrophytic Vegefatio�Present? Yes No ✓ / Hydric Sal Present? Yes No—T Is the Sampled A�ea � Wetland Hydrology Present? Yes No�L Within a Wetla�d? Yes No [� Remarks: VEGETATION-Use scientific names of plants. Absolute Do ' �t Indicator pominance Test worksheet Tree Stratum (Plot size: 1 No Cover ' s? Stalus Number of Dortrna�t Species �• That Are OBL,FACW,o�FAC: (A) 2. Total Number of Domi�anl 3• Species Aaoss AU SUata: (8) 4. Percent of Dominant Spedes -TO��OV� That Are OBL,FACW,or FAC: (A!B) SadindShrub Stralum (P1ot size: 1 �, Z v�vS p�� S c u �� (p� ��}� Prevalence I�dex worksheet 2. Total%Cover of: Multidv bv: 3. OBL species x 1 =T FACW species Z D X 2= � `� 4. 5 FAC species 3 � x 3= 9� =Total Cover FACU species �t � z 4= y� a Herb Stratum (Pbt size: 1 UPL species x 5= 1. AS I o J�";f S��J 3 a ��C Column Totals: /�— (A) .3 4 � (g) 2. /�"^'„'-c✓/s r�-lY.S Z l� �"/IC W Prevalence I�dex =B/A= 3� � 3� Hydrophytic Vegetatio�Indicators: � 4- 1-Rapid Test for Hydrophytic Vegetation 5- 2-Dominance Test is>50% 6• 3-Prevalence Index is�.0' �- 4-Morphological Adaptatio�s'(Provide supporting g. dala in Remarks or on a sepa�ate sheet) g. 5-Wetland Non-Vascula�Pla�ts' �p, Problematic Hydrophy6c Vegetation'(F�cplain) ��. 'Indicators of hydric soil a�d wedand hydrdogy must =Total Cove� �Prese�t,unless disturbed or problematic. Woodv Vine SVatum (Pbt size: ) � Hydrophytic Z. Vegetalion ✓ =Total Cover Present? Yes No %Bare Ground i�Herb Stratum Remarlcs: US Army Corps of Engineers Westem Mountains,Valleys,and Coast-Versio�2.0 �I � SOIL Sampiing Point:�r ��Z Profile Description: (Describe to the depth needed to docume�t the indicato�or confirtn the absence of indicators.) Depth Matrix Redox Features (inchesl Color(moistl % Color(moist) % Tvne Loc Texture Remarlcs �(_ /vy�3lz � /iv`/� � � .i Go.-�rt�.5 �f �Z 'T : C=Co�centration,O=De letion,RM=Reduced Matrix,CS=Covered or Coated Sand Grai�s. ZLocaUo�: PL=Pore Linin ,M=Matrix. Hydric Soil Indiwtors: (Applicable to ali LRRs,unless othervvise noted.} Indicators for Problematic Hydric Soils': Hisiosol(At) _ Sandy Redox(S5) _ 2 cm Mudc(A10) Histic Epipedon(A2) _ Stripped Matrix(S6) _ Red Parent Material(TF2) Black Histic(A3) _ Loamy Mucky Mineral(F1)(ezcept MLRA 1) _ Very Shallow Dar1c Surface(TF12) _ Hydrogen Sutfide(A4) _ Loamy Gleyed Matrix{F2) _ Other(Explai�in Remarks) Depfeted Below Dar1c Surface(A11) _ Depleted Matrix(F3) Thick Oark Surface(Al2) _ Redox Dark Surface(F6) 'Indicators of hydrophytic vegetation and Sandy Mucky Mineral(S7) _ Oepleted Daric Surface(F7) wetland hydrology must be present, Sa�dy Gleyed Matrix(S4) Redox Depressions(F8) unless disturbed or problema6c. Restrictive Layer('rf present): Type: � Deplh(inches): Hydric Soil Prese�t? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primarv Indicato�s{minimum of o�e reauired:check all that anplv) Secondarv Indicators(2 or more reauired) Surface Water(At) _ Water-Stained Leaves(B9)(except _ Water-Stained Leaves(69)(MLRA 1,2, _ Hgh Water Tabte(A2} MLRA 1,2,4A,and 46) 4A,and 46) Saturatan(A3) _ Satt Crust(B11) _ Orainage Pattems(B10) Water Marks(B1) _ AquaGc Imertebrates(B13) _ DrySeaso�Water Table(C2) Sediment Deposits(62) _ Hydroge�Sulfide Odor(C1) _ Saturatio�V'�sible on Aerial Imagery(C9) Drift Deposits(63) _ Oxidized Rhizospheres abng Living Roots(C3) _ Geomorphic Position(D2) _ Algal Mat or Crust(B4) _ Presence of Reduced Iro�(C4) _ Sha(low Aquitard(D3) I�on Deposits(B5) _ Recent Iron Reduction in TAled Soils(C6) _ FAC-Neutral Test(D5) Surface Soil Cracks(B6) _ Stu�ted or SVessed Plants(D1)(LRR A) _ Raised Ant Mounds(D6)(LRR A) Inundation�sible o�Aerial(magery(B7) _ Other(Explai�in Remarics) _ Frost-Heave Hummocks(D7) _ Spa�sely Vegetated Conqve Surface(B8) Field Observations: Surface Water Prese�t? Yes No Depth(inches): Water Table Present? Yes No � pth(i�ches): `� Saturation Present? Yes No�pth(inches): WeUand Hydrology Present? Yes No (inGudes capilla (ringe) Describe Recorded Data(slream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: ' US Army Corps o(Engineers Western�4ountafns,Valleys,and Coast-Versio�20 I WETLAND DETERMINATION DATA FORM—Western Mounta�ns�lalleys,-a�d�oast�2egion -- ProjecUSite: D��r+�!''� V/ �L�l CitylCounty: C'��1 l��^� SampiingDate: g��l� �''��5� IicanUOwne�: . ri � / o� App� �j� r- /l�� '"""ti State:� Sampiing Poinl: l7P B=3 h.t'}�� Investigator(s): G.�'' d C�""��` Section,Township,Ra�ge: S f � TZ 3 N 2sF Landform(hillslope,terrace,etc.): Local relief(co�cave,convez,no�e): Slope(°/a): Subregion{LRR): Lat: Long: Datum: Soil Map Unit Name: ��1�^'� NWI classification: Are climatic!hydrotogic co�ditions on the site typical(or this time o(yea�? Yes No {If no,explai�in Remartcs.) / Are Vegetation ,Sal ,or Hydrology significantly disturbed? Are'Normal Circumsta�ces'p�esent? Yes No Are Vegetatio� ,Soil ,or Nydrology naturally probiematic? pf needed,explain a�y answers in Rema�tcs.) SUMMARY OF FINDINGS— Attach site map showing sampling point locations,t�ansects,important features,etc. Hydrophytic Vegetatio�Present? Yes No Hydric Sal Present? Yes No �s the Sampled Area Wedand Hydrdogy Prese�t? Yes No w��n a Wetla�d? Yes No Rema�lcs: VEGETATION—Use scientific names of plants. Absolute Domi nt Ic►dicator pominaoce Test wwksheet: Tree Shatum (Plot size: l yo Cover Soecies? Status Number of Dortr�aM Species 1. Thal Are OBL,FACW,or FAC: � (A) 2- Tolal Number of Dominant 3. Species Across Ap Strata: (B) 4' I Peroent of Oominant Species l -TO��COV� That Are OBL,FACW,or FAC: �v (AB) Saofina/Shrub Stralum (Plot size: � Preva{ence Index worksheet: ,. �h�l al,,s-�.�� -�o �jac.l Total%Cover of: MultiWv bv: 2. OBl species z 1= 3. FACW speaes Z � z 2= �F� 4. FAC species x 3= 5. _T�� FACU species �� z 4= Z g� Herb Stratum (Pbt size: 1 UPL species x 5= 1. T��'-�✓�``s /'tl1�.T 2 O �/�G�-.J Column Totalr. Q� (A) �Z-� (B) 2' Prevalence Index =B/A= 3 `S�� 3- Hydrophytic Vegetatio�Indicato�s: 4• 1-Rapid Test for Hydrophytic Vegetatio� i 5• 2-Domina�ce Test is>50% 6• 3-Prevalence Index is s3.0' ' 7. 4-Morphological Adaptatio�s(Provide supporting g, data in RemaAcs or on a separate sheet) g. S-Wetla�d Non-Vascutar Plants' �p. Problematic Hydrophytic Vegetation'(Explain) ��. 'Indicators of hydric soil and wetland hydrology must =Total Caver �Present,unless disturbed or problematic. Woodv Vine Stratum (Pbt size: 1 �� Hydrophytic f 2. Vegetation � =Total Cover Present? Yes No %Bare Ground in Herb Stratum Remarks US Army Corps of Engineers Westem Mountains.Valleys,a�d Coast-Version 2.0 SO�L Sampling Point: �� Profile Description: (Describe to the depth needed to document the indicator or con£rm the absence of indicators.) Depth Matrix Redox Features (inches) Color(moist) % Color(moist) % Tvpe Loc Texture Remarks � / O y� a/1 l G iG`�i �/� 'T : C=Concentration,D=De le6on,RM=Reduced Matrix,CS=Covered or Coated Sand G�ains. ZLoca6on: PL=Pore Linin ,M=Matrix. Hydric Soil I�dicators: (Applicable to all LRRs,unless otherwise noted.) Indicators for Pro6lematic Hydric Soils': _ Histosol(At) _ Sandy Redox(S5) _ 2 cm Muck(A10) _ Histic Epipedo�(A2) _ Stripped Matrix(S6) _ Red Parent Material(TF2) Black Histic(A3) _ Loamy Mucky Mi�eral(F1)(except MLRA 1) _ Very Shallow Dark Surface(TF12) _ Hydroge�Sulfide(A4) _ Loamy Gleyed MaUix(F2) _ Other(Explain in Remarks) Depleted Below Dark Su�tace(At 1) _ Depleted Matrix(F3) _ Thick Daric Surface(Al2) _ Redox Dark Surface(F6) 'Indiptors of hydrophytic vegetation and _ Sa�dy Mucky Mineral(St) _ Depleted Dark SurFace(F7) weQand hydrology must be present, Sandy Gleyed Matrix(S4) Redox Depressions(F8) unless dislurbed or problematic. Restrictive Layer(if present►: Type: Depth(mches): Hydric Soil Present? Yes No/ Remarics: HYDROLOGY Wedand Hydrology Indicators: Primarv I�dicators(minimum of one reauired:check alI that aovlvl Seco�darv Indicato�s(2 or more requiredl _ Surface Water(At) _ Water-Stained Leaves(89)(except _ Water-Stained Leaves(B9)(MLRA 1,2, _ High Water Table(A2) MLRA 1,2,4A,aad 46) 4A,and 4B) _ Saturafan(A3) _ Saft Crust(B11) _ Orainage Pattems(610) _ Water Marks(B1) _ Aquatic Inve�tebrates(813) _ Dry-Season Water Table(C2) _ Sedime�t Deposits(62� _ Hydroge�Sulfide Odor(C1) _ SaturaCwn Ysible on Aerial lmagery(C9) _ Drift Deposits(B3) _ Oxidized Rhizospheres abng Living Roots(C3) _ Geomorphic PosRio�(D2) _ Algal Mat or Crust(64) _ Presence of Reduced Iro�(C4) _ Shallow AquRard(D3) _ Iro�Deposits(BS) _ Recent Iron Reduction in Tilled Soils(C6) _ FAC-Neutral Test(D5) I _ Su�face Soil Cracks(B6) _ Stunted o�Stressed Pla�ts(D1)(lRR A) _ Raised Ant Mounds(D6)(LRR A) �I _ Inundation�sible on Ae�al Imagery(87) _ Other(Explain in Remarks) _ Frost-Heave Hummocks(D7y I _ Sparsely Vegelated Concave Surface(B8) Field Observations: Surface Water Present? Yes No / Depth(inches): Water Table Present? Yes No��8epth(inches): ✓ Saturation Present? Yes No `� Depth(inches): Wetland Hydrology Present? Yes No indudes capilla fri� e) Describe Reoorded Data(sVeam gauge,mo�itoring well,aerial photos,previous inspections),'rf available: Remarks: � US Army Corps of Engineers Westem Mountains.Valleys.and Coast-Version 2.0 , - WETLAND DETERMINATION DATA FORM-Western Mountains,llalleys;and-Goast�2egion — - --_ I ProjecUSite: DI1�r�ll+-.S V/ �l�l CitylCou�ty:_ C'�o! ��-'�^'Sampling Date: `��'�� AppticanUOwner. ,�.j� �i � Uc�'Y"�t State: �'v, , Sampling Point: b�� `� Investigator(s): G�' C3f k"''4�` Section,Tow�ship,Range: S 1 � TZ 3 � 2-SF � landfortn(hillslope,teRace,etc.): Local relief(concave,convex,none): Slope(°/a): Subregion(lRR): Lat: Long: Datum: Soil Map U�it Name: /7 l�'t�"'� NWI classificafan: Are dimaGc/hydrologic conditions o�the site typical for this time of year? Yes No (If no,e�cplai�in Remartcs.) Are Vegetation ,Soil ,o�Hyd�ology significantly disturbed? Are'Nom►al Crccumstances'present? Yes No Are Vegetation .Soil ,or Hydrology naturally p�oblematic? (If needed,explain any answers in Remarks.} SUMMARY OF FINDINGS- Attach site map showing sampling point locations,transects, important features,etc. Hydrophytic Vegetatio�Present? Yes_� No Hydric Sal PresentZ Yes� No Is the Sampled Area � WeUand Hydrology Present? Yes No Wkhin a Wetlaod? Yes '� No Remarks: VEGETATION-Use scientific names of plants. Absolute Domi nt Indicator pominance Test wortcsheet Tree Stratum (Pbt size: ) °�Cover Soecies? Siatus Numbe�of Domina�t Species �• That Are OBL,FACW,or FAC: � (A) 2. Total Number of Dominant / 3. Species Across AN Strata (6) 4. Percent of Dominant Species =Tofal Cover That Are OBL,FACW,or FAC: /v O (A18) SadinqlShrub Stratum (Pbl size: 1 1_ 5�i I'�c.� p�u i q �d�� /!�U �� Prevalence I�dex worlcsheet� Tota19'a Cover ot: MultiaN bv: 2. OBL specc:iees x 1= 3. FACW species x 2= 4. FAC species x 3= 5. FACU species x 4= =Total Cover Herb Stratum (Pbt size: ) UPL species x 5= �_ Column Totafs: (A) (B) Z� Prevalence Index =B/A= 3- Hydrophytic Vegetation Indicators: 4� 1-Rapid Test for Hydrophytic Vegetatan 5- 2-Dominance Test is>50% 6• 3-Prevale�ce Index is�.0' 7 — 1-Morphological Adaptations'(Provide supporting g. data in Remarfcs o�on a separate sheet) g. 5-WeUand Non-Vascular Plants' �p. ProblemaGc Hydrophytic Vegetatio�'(Explai�) ��. 'Indicators of hydric soil and wetland hydrology must =Total Cover be present,unless disturbed or problematic. Woodv Vme Stratum (Pbt size: ) � Nydrophytic 2. Vegetation =Total Cover Present? Yes No 90 Bare G�ound in Herb Stratum Remarks: US Army Corps of Engineers Westem Mountains.Valleys,and Coast-Version 2 0 SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of i�dicators.) Depth Matrix Redox Features (inches) Color(moist) % Color(moistl % Tvpe Loc Texture Remarks /�i /�'`/fy 'Z// �, � �. 'T : C=Co�centration,D=De le6on,RM=Reduced Matrix,CS=Covered or Coated Sand G�ains. 2Location: PL=Pore Linin ,M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': Histosol(A1) _ Sandy Redox(S5) _ 2 cm Muck(A10) _ Histic Epipedon(A2) _ Stripped Matrix(S6) _ Red Parent Material(TF2) _ Black Histic(A3) _ Loamy Mucky Mineral(F1)(ezcept MLRA 1) _ Very Shallow Dar1c Surface(TF12) _ Hydrogen Sulfide(A4) _ Loamy Gleyed Matrix(F2} _ Other(Explain in Remarks) Depleted Bebw Dark Surface(A11) _ Depleted Matmc(F3) �Thidc Dark Surface(Al2) _ Redox Dar1c SurNace(F6) 'Indicators of hydrophytic vegetation and _ Sandy Mucky Mi�eral(S1) _ Depleted Dark Su�face(F7) weUand hydrobgy must be present, Sandy Gleyed MaVi�c(S4} Redox Depressions(F8) unless disturbed or problematic_ Restrictive Layer(ff present�: Type: Depth(inches): Hydric Soil Prese�t? Yes " No Remarics: HYDROLOGY Wetland Hydrology Indicators: Priman Indicators{minimum of one reauired:chedc all that apolvl Secondarv I�dicators(2 or more required) _ Surface Water(At) _ Water-Stained Leaves(B9)(except _ WaterSfai�ed Leaves(B9)(MLRA 1,2, _ High Water Table(A2y MLRA 1,2,4A,and 46) 4A,and 46) Saturation(A3) _ Satt Gust(B11) Drainage Pattems(610) �Water Marlcs(61) _ Aquatic Invertebrates(813) _ Dry-Season Water Table(C2) _ Sediment Deposits(62) _ Hydrogen Sulfide Odor(Ct) _ Saturatio�V'�sible on Aerial Imagery(C9) Drift Deposits(83) _ Ozidized Rhizospheres abng Living Roots(C3) _ Geomorphic Position(D2) _ Algal Mat or Crust(64) _ Presence of Reduced I�on(C4) _ Shallow Aquitard(D3) _ Iron Deposits(BS) _ Recent Iron Redudion in Tilled Soils(C6) _ FAGNeutral Test(D5) _ Su�face Soil Cracks(66) _ Stunted or SUessed Plants(D1)(LRR A) _ Raised Ant Mounds(D6)(LRR A) _ Inu�dation Visible on Aerial Imagery(87) _ Other(Explain in Rema�tcs) _ Frost-Heave Hummocks(D7) _ Sparsely Vegetated Concave Surface(B8) Field Observations: Surface Water Present? Yes No �Depth(inches): Water Table Present? Yes No�^ Depth(inches): Saturation Present? Yes No� Depth(inches): Wetland Hydrology Present? Yes � No includes capilla frin e) Describe Recorded Data(stream gauge,monitoring well.aerial photos,previous inspectio�s),rf available: Remarks: N� �< < �s ` US Army Corps of Engineers Western Mountains,Valleys,and Coast-Version?Q U'rtl.mJ n�ame or numbcr Wetlend name or number_ WETLAND RATINC FORM—wESTERN�YASHINGTON Does the wetland unit being rated meet any of the criteria below? Version 2•Updaled July 2006 io increue�cwncy ynd reproducibiliry�mon{utm� IC you answer YES to any of the quutions below you will need to protect the u�ctland Updated Oct 2008 wiih the new 0.'DFW definitionc for prionry Aabiuu accordirg to the regulations regardmg the special characten.�tics ti�und in the��etlan�. N:�me of wceland(if known)� V"G l r""� � Dete of site visit: �d''Zu^/a °'4'�%Che�k;.I�isti for�«ct�an�l,s;y�f'li�tf,llay�e�d�'�ldditional„Yrotec�don - �y''F S � �NO R:,iedby � Seiv� TrainedbyEcology? Yes_No_ Dateoftreining i �• � lnnddldonto`the Iotect(r�n4rCcommeiidedfor(tscatefior� SYI,L��s(iic� �rcna i..,,, ,. �.... . �,.,.r;.� ,.. ��r le;;en�.,�,'s,_�. � SEC:____TIVNSHP:_RNGE:_ Is S/T/R in Appendix D? Yes_ No_ Threa�cned or Endangered anima!or plaiu species(TiE sper.ies)? For the purposes of this rating system,"documented"means the wedand is on the Map of wetland unit:Flgure_ Estimated slza � �q C a ro nate stute or federal database. SP2.Nas 1he welland uni�been dacumented as habitat for any Srate lisred SUMMARY OF Rt+.TING ThrtatenedorEndangeredanimalapecler? � For the purposes of this rating system,"documented"means the wetland is ou the ('atc�or� based on FLINCI'IONS ro��ided b wetiand appropriate state database. Note: Wetlands with State listed plant species are b P Y cate onzed as Catt ot I Nahual Herita e Wetlands see .19 of data form. /// I_ Ii_ II1_ I V_ SP3. Dou�he wedand uni�contain individualr ojPrioriry apecies listed by the . /I WDFW jor rhe alare7 v I Scoro Cor Water Quality Functions � � SP4. Doer the wttland unit have a local rrgnificance in addirion to rrs juncrrons7 � CateKory 1-Score>=70 c,ategory II-Score 5I-69 Score for Hydrologic Funcdons /D For example,the wetland has been identified in the Shoreline Master ICa�eye�ry-Iit=Scure 30-5� Score for Ha�itat FuneNons Progrem,the Cntical Areas Ordinanco,or in a local management plan as Caceeorv l�'-Score� 30 having special siynificance. TOTAL�core for Funct(on� y CateRor� base�on SPECIAL CHAKACTERISTICS of wetland 1_ II_ Does not Apply_ To corr�plete!he next parl o(fhe�lata shcet vou will need ro delermine!{tc Nvdrareomoryhic Clnss�f'the tivetlnnd 6einy ratert. F11181 CBtCgOt')'(c600se the"highest"cateQory from above) ❑ The hydrogeomorphic classification groups wetlands into those that function in similar ways. '1'I�is simpliGes the questions needed to answer liow well the wetland Cunctions. Tlx Hydrogeomorphic Class of a wedand can be detertnined using the key below. See p.24 for morc detailed instructions Summarv of baslc Informatlon about the we[IanJ unit ou dassifynng wctlands. �Vetland UnfthA�,SpeCin' `' r1YetlaaJH M',• �,i q 7 r �I( y��y ....�..� rw� ' Cliaractcrlsucetif+ .5�`�i�e r� �+rr t'ed' � t�ii tstuarinc De ressfonal \'afural Herita�e��'etland RiverinC Ilo I.ake-frin e 111ature Foreet Slo e Old Growth Forest Flats Coastal La oon Freehwater Tidal Intcrdunal None of the aUove Check if unit has multiple HGM classes resrnt WrdnndRaiingForm—westemWuhinglon I Auguct200i WetlandRuingForm—wectemW'uhingwn 2 AugusI:G04 �ersiun 2 To bc uscd wiih Ecology Public�tion Oa-06-0:5 � vorsion 2 Upd�ted wieh new R'DFti1'de(nitions Ou.:008 '��'aland name or numbcr Wedand name or number_ C.I�SSIIIC9[IOfI Or�Vetland Units in«'estern�Vash(ngton S.Does the entire wetland unit meet all of the following cnteria? The unit is in a valley,or sReam channtl,where it gets inundated bp ovcrbank - flooding from tliat saeam or nver IC thc h}drologic criterla listed ln euch questioddo'not'appl� tu the,eneire unl,cbe(nQ i i.:;,',r The overbank flooding occurs at leost once every two qears. .rated;�}au proliably hrve,s unit��Ith,rnultlplc HG�I,'clnaser In thJa�case�idcntlCvF�rt�ich,�'^�;' NOTE.•Theriverintuni�can contain de ressions thatare elled��irh�.arer when rhe rirer is �,� ,�,,. r� P I hcdrologic'criteria in tjiiedtions 1-9fapply,�nd'Qofito�QueiHon 8 ,�¢:i,i��r�,��A.��•L y+ i 'i o ��'�� ing. �r"n N„7.rk. �. — - - O-go to YES-The weQand class is Riverine �.;,� e�els�u chc cncire un�i usually concr„Iled h;c�dcs ii e e�c�pc during c;oo,ls�' 6.Is the entire weHand unit in a topogr�phic depression in which�eatcr ponds,or is saturated to the Nt�-go co YES-Ihe wetland class is Tldal FrinQe surface,at some time during the ve4�. Thir meant lhat utlet,ifpresent,is higher�han nc� lntciior oj�he we��! �`'�----.�� C yes,is the saliuity of the water during periods of annual low tlow below 0.5 ppt(partt per NO-go to 7 L YES-The wetland class is Depradonrl"' tliousand)? YES-Freshwater Tidal FrinQe NO-Saltwater TIdrI FrinQe(E�tuarine) /J your weNnnd can be clnssrfied ar a Freshwpte�Tidaf Fringe use the jormt jor R/verins 7•Is the entire wetland unit located in a very flat area with no obvious depression and no overbank we!/nnds. ljil is Sn/fwa�er Tidaf fringe i!ir rated as an Estuar/ne welland.Wedands lhet 1looding. The unit does not pond surface water more than a few�inches.The unit secins eo be wcre called estuarine in the first and second editions of the rating system are called Salt maintained by high groundwater in the arca. The wetland may be ditclud,but h�,nu obvious �Vater Tidal Fringe in the Hydrogeomorphic Classification. Estuarine wetlands were natursl ouUet. categorized separotely in the earlier editions,and this separation is being kept in tliis NO-go to 8 YES-The wetland class is Depre�sional revision. To muintain consistency between editions,the term"Estuerine"wedand is kepl. Please note,however,that the charactcristics that derne Category 1 and li estuarine 8.Your wetland unit seems to be difficult to classify and probably coneains several different HG�f H etlands have changed(see p. ). clues. For example,seeps at the base of a slope may grade into a rivcrine floodplain,or a smal l atream within a depressional wedand has a zone of flooding along its sides.GO BACK AND 2.The entire wedand unit is flat and precipitation is the only source(>90Yo)of wakr to it. IDENTIFY WHICH OF TfiE HYDROLOGIC REGIIv1ES DESCRIBED[N QUESTIONS I-7 Gr�� and surface water runoff are NOT sources of water to the unit. APPLY TO D[FFERENT AREAS IN THE iJNIT(make a rough sketch to help you decide). Use NO-go to YES-The wetland class is Flat: the following table to identify the appropriate class to use for the rating system if you ha��e se�erai If your wetland can be classificd as a"Flets"wedand,use the form for Depre�donal HGM classes present within your wetland. NOTE:Use this table only iC the class that is ��eNands. recommended in the second column repraeuu 10%or more oC the total area of the wcqand unii 3. Does the eutire wetland unit meet both of the following criteria7 being rated. If the area of the dass listed in column 2 is less than 10°/oCthe unit;classify the _The vegetated part of the wetland is on the shores of a body oC permanent open water wetland using the class that represents moro than 90%of the total area. (withouc any vegetation on the surface)at least 20 acres(B ha)in size; / � , .� ' �a ';/fC� . las�f:r' e:n;Ratin st 30%of tlw open water area is dceper than 6.6 R(2 m)? Slo e+Riverine Riverine i�n'O- YES-The weQand class is Lake•frinQe(Lacu�trine Frinee) Slo e+De ressional Dc ressional �.Does the entire weHand unit meet all of the following criteri�'1 Slo e+Lake-frin e Lake-frin e The wetland is on a slope(slope can be very graduan, De ressional+Riverine alon stream within boundary De ressional _'1'he water flows through the wedand in one diroction(unidirectional)and usually De ressional+Lake-frin e De ressional comes from seeps. It may tlow subsurface,as shtet(low,or in a awale without Salt Water Tidal Fnnge and any other class of freshwater Treat as ESTUARINE undcr distinct banks. wetland wetlands with special _ l he water leaves the wedand wlthout beinQ Impounded7 characteristics tiOTE: Surjace wnrer does no1 pond in rhese rype ojwetlands ercepf occarionally in very smn!!nnd shnllow depressions or behind hummocks(depreuiont are utua!!y It you are unable still to detertnine which of the above cnteria apply to your wetland,or if you Y_---.-_, iametrr and less rhan 1 joot deep). have more than 2 HGbi classes within a wetland bow�dary,classify the��clland as llepressional '�VO•go to 5 'ES-The u-etland class is Slope for tht rating. \�'c�I.�nA Raiing Porm-�vesiem 14ashing�en ] Augus1200J Wedand Ruing Form-weslem Waahington 4 A�6i+s��t)t)� �crs:en 2 UpJaicd w iih new�N'DF�V Jelinitiunt Oct.:OOP vercion 2 Updated wi�h new 1VDFW definilioru Otl.2008 R'cildnd namc nr numL cr Wellend nyne or number_ D . ucpress(onal�anU I'lats��Vet�ands, u;�,,; �;r, , �.,,. �� a , e r : ctlnncis. ;, " Points D^" I� P,Rssionul and I�lnts.�� conr �y< � .�' � HYD2?.QLOGiC F�'1CTIQ?jS'- IndiCa(ors U�at the��etland:umt functioriS to' WA'PER QU.,�L'ITV FCiIrCP10NS Indleagto 8` " �Y 01��,� .+�'�'r�`'" - reS::ce floodin¢or,dstream de �idation". ` ' '' °"�F� w-od4� ..ijm �Ove�water ttRli�-�� +� .�.'�ni�S ,�+� G�^'6".Lw,."11�"= D 3.Uues thc�+edand unit ha��e the ial tu reJuce Ilooding and erucion? �(seep.461 � D t.Uors the wetland unit have the oten la to Improve water qualfty" (see'p.JB) D D D 3.1 Chuacteristics o(surface wamr flows out of the wetlaod unit U I J l.haracteristics of surface u�ater tlows out of the welland: Fipur�_ 055�� Unit ie�deprceoion with no eurfue water leoving il(no outleQ points- Unrt is x depression with no surf�ce wvicr la��ing it(no outlet) � � Unil hL an intermitlently flowinQ,OR highly constricted permmently Oowing outlet omis- � Unit has an intermiuently flowing,OR highly constricicd pertnanently Ilowing ouAet iNs- y�k^'u"�^� Unit is�"t1�P'deprctfion(Q.7 on key),or in tht Flxh clysa,with perm�nrnt mrl'acc ou ow and Unil hu en unconstricted,or slightly conctricted,surface owlm(permanentlyJlowing)pomts�I � no obvloui n�tunl oullel andor ouUm it a m�n-made dikh Doma�1 Unit i.� a"IIuC'deprcaaion(Q.7 on key),or in�he Plals cbse,wilh pertnanent iuriSte oWllow�nd � L (` ((IJl�ch l.r no�pomanmdyfor�ing neal unir aa"intrrmirtrn�lyJinwing") Z na obvlou+naturd outict and/or ou�let is a man-made dilch poinU�I �IR.� 7 �U"ys Unit hat an untonstneted or sli hU wnstric�ed surface outlel ermanen�!� owin oims�0 (!Jr(irch is nni prrmonmdyJlo�vint�rcoi uni�at"InarniinendyJlowing'� � D D 3.2 Dep[h Of storage during wtt periods vrovitle hao or drawin E:rfmutr rhe helyht ojponJing ubove rhe botrom ojthe oudet For unira wirh no ourler S 1.2 The soil 2 inchu below the surface(or duR I�yer)is clay or org�nic (ute NRCS meururejrom�he au.fuce ojpermanent wurer or dee/x.rt�wrt(ijdry). definirion.r/ Muks of pouding ue 3 ft or mort above the surface or bottont of oudet points-7 D YES point - � The wetland is a"headwater"wetlqnd" points�S omts- Muks of poadiay between 2 ft to<3 R from surCace or bottom oCoutlet points-5 D I.3 Chancteristics of persistent vegetation(emer�ent,ahrub,and/or torest owudin class) Flpw�� M�rb ue at le�et 0.5 ft to<2 fl from eurface or bonom of ouUet puines-J Wetland has persistent,ungrazed,vegention>�95%o(uw omts- Uait is tlat(ya to Q.2 or Q.7 on kty)but hu srrull depreesions on the surface that vap D Wedand has persistent,ungrazed,vegetation>-U2 of area p m s-3 water o' -I � Wctland has persistent,un�azed veget�tion>-1/10 of area points�I Marka of ondin Itea then 0.5 N '� � Wedand has persistent,ungazed vcgetation<I/10 of atea poinLt�0 � D D J.3 Cootribution of wetlaod unit ro storage in the watershcd Ma of Cowardin ve elation Claaee6 Etflmu�e Jhe rutlo of�he ureu oJupsveum butin con�rlbu�ing turjace�wter ro the x�edund Dl.a Characteristics of swsonal ponding or inundation. Flyun_ m�ht nreu oJ�ht we�land unit iuelj This it rhe o�en of rhe wcdund unil �hur!s/mnd¢d jor al!¢nsf 2 mon�hr,but drru ou! The uea of the basin ie less than 10 times the uea of unit p � somerime during the ye�rr. Do nor counr rhe urea thut it perman¢nNy ponded. Estimule The uei of the basin i�10 to 100 timea the ueo of the unit oints- area as�he average rondition S ou�oj10 yrs. The un of the basin is more than 100 tima tht uta of the unit pomts�0 3' Area seasonally ponded is>%,total ua of wedand Entire unit is in the FLATS class ints-5 Area scasonally ponded is>: total area of wetland aints-2 D Total for D 3 Add fhe poinlr in!he boxes nbove � S' � Area seasonally ponded is<Y. total area of wetland poui s- �� _ Ma ol H dr enods D D 4.Doee the wetlsnd unit have the qpoortunitv to reduce flooJinQ and eroslon7 (see p.49) D Total I'or D 1 ,1dd!he pointt in the boser above � 9 � Mswer YES itthc unit is in�location in Ihe waterehed where the flood stonQe,or reduction in water velociry,it provides helps protect dowostreun property and aquatic D D 2.Uoes the wetland unit have the oonortunitv to improve water quallty7 (see p.I4) re�ourca Bom llooding or excessive md/or erosive flows. Mswer NO if the water Mswer YES if you know or believe chere are polluunu in groundwater or aurfue water comiaQ ioto the weNand ia controlled by a structure such as flood gate,tide gata,flap coming into the wetland that would otherwise reduce water qualiry in sveams,lakes or valve,reservoir etc.OR you atimate that moro than 90•/.of the water in the wetland is b�oundwater down�Tadient from the wedand.Nore whlch oJthejo!lowing condJNoru Crom groundwater in areu where dartuginQ groundwater Oooding does not occur. provide the.rources ojpollutanit. A uni�muy hnvepollumnn cominyfrom revernl N a^'� Nofe whlch oJthefoflowing indlcaror,r ojopporluniry upplY• sourcer,hur uny single source would qualijy at opporrunity. ��,/ — Wetland is in a headwater of a river or 6Vtun that has flooding problevu ing in�he wetl�nd or wilhin ISO fl — �y�tl�ud drains to a river or stream that has flooding problems ntreuud ctormwater diicharges io wetland — Tilled ficlds or orchurds wi�hin I50 II of wetlxnd -��Wetland h�s no outlet and impound�surface runoliwater that mi�ht othcnvise — A sueam or culvcn discharges inlo wetlynd lhy�dnini developed veae,residenti�l areu, tlow into a river or stream that has floodinQ problems multiplier �nned fields,roads,or clear-cut loggin' _ � — Rcsideniiyl.urb�n areas,golf tourses yrt wilhin I SO II of wetland rt1U1hp110E NO �tulti lie�i5 1 — wetland is fed by groundwyier high in phosphorui or nitro6en D TOTAL -HydraloQic Functlone Multiply the score from D 3 by D 4 /� YES multi lier is NO multi lier is I � Add scare to fable oii p.I p T ater Quality Functions Multiply Ihe score from D1 by D2 /�"/ Add score to table on .1 � 1Vetland Raiing Form-weslem Wyahington 5 Augutl2004 Wetland Raling Form-wceiem Washington o August 20oa �cr5ion: Updaled w�ith new\4'DPR'definiiions Oct.:OOd version: Upd�ted wiih new WDFW deG�u�ions Oct :OUB ��'eilanJ namc or numbcr Wedand nune or nu+nber_ '—` ' Y �� r M vr`" rh ' H 1.4.Intersoersion of hnbi[ats(aee p 76J igun_ �hese rjuCStio�ts:aJ�pll'to a+'cllandS.of Rll HC�i:ti1 c/uSS�s:.; .+ �'"r�� , �r i i�O��It�s�e, Decide fiom[he dia�artv below whether interspersion belwern Cowardin vegetation J".�r. HA.BITAT;F•.U;�`CTIO'vS;•,Indicarors ilidt UniCfuitcti0lu(0 provide impo�an�Jtabrtatr� � �q ;,T1xrhN)' classet(described in H l,l),or the classea and mvegeqttd are¢s(can include open water or � mud}lats)ie hi�h,mediutn,low,or none. H 1.Docs the wetlaud unit have the uoten�ial to provide habitat for many�pecfes' �H I.I Vecetation strvcturc(see p. '2J FIpu�1_ . �� Chcrk the�vpcs oJ'vegemtion clasret presenr(us defined 6y Coxwrdln)-SI:e rhrvholJjo.euch � �laaa it'/.acrr or morc�han!0%oj�he urru(junit i.r tmu!ler�hnn 1.3 ucret. .� � ' ` �.; c.O �, � � _Aquatic bed Emergent plants one�0 poin Low-1 point �lodcrate-2 points �b/shrub(ueas where ahrubs have>30•/.cover) Forested(arens where trees have>30%cover) ,-l"`-"'•.. /jthcy�hns u jorested clnu check if.� � a-1Y'° � �'fhe forested class has 3 out of 5 strata(c�nopy,sub-cano � � �*��`'' py,elwbs,herboceoue, f� „ � moss/6Tound-cover)that each cover 20%within the forested poly�on � J ^ I ��. Add ihe numher ujvegem�ion s�ructures thn�yu�dify. /jyau have: r/ ��I I structuret or mote poinu�4 . � �4��,,, , �' Map ol CowarOin veqelalion classes 3 ewctures , . 2 ShucturW �� `'----' /� �riparian braided c6annels] I structure ointa-0 High -3points H 1.2.fivdrooeriods(seeµ'3) Flpun_ NOTE:If you have fouf or more classes or three veQetation classes and open weter O Check rhe types ojwa(er repimes(hydroperiodtJ presen!wlrhin rhe wedand. The water the relin Is alwe e"hi h". Uee ma of Cowardin ve elalion Classes regime hnt to cover more lhan!0�oJrhe wednnd or'/,ucre ro counr.(,cet trs�jor H 1.5.Speeial H�bitat Features:(setµ77J derniprionr ajhydraperlods) Cha�k rhs habirur jearuret rhut ure presenr in rhe we�lund. The number oJcheckt is the Pemianently(loodcd or inundated 4 or more types present points�3 numbtr ojpofntt you put In�o tht nut column. I �Seasonally Oooded or inundated 3 ryp�s present poinb�2 Lar c,dowued,woody debris wifhin the wetland(>4in.dianuter and 6 R long). Occasionally flooded or inundated 2 rypes preaent point-l hnding tnags(diameter�t the bonom>4 inchee)in the wetland ✓Satureled only I type present poinn-0 Pemianently flowing sheam or river in,or adjacent to,the wedand _Uoderwt banks are prexnt for at least 6.6 ft(2m)anNor over6anging vegetation extends at Seasonally Ilowing satam in,or adjocent to,the wetl�nd leaet 3.3 ft(Im)over a strwm(or ditch)in,or conHguous with the unit,}'or at lea+t 33 ft _Gnke fringe we�land�2 points � (IOm) _Freshwa�er fldaf we�fanQ�2 polnts Map of hydropeAods _Stable eteep bank.t of fine material that might be used by beaver or muslvat for denning (>30degree slope)OR aigns of recent beaver activiry are present(cur rhrubr or treer thur H 1.3.Rir.hness of Ylant Soecies(see p.73) have not yer rurned grey/b�own) Count the number of plant species in the wedand that cover at Itast IO ft�. (different putchea At leost'/.acre of thin-etemrt�ed persiatent vegetauon or woody branches are preaent in areas of the same s�ener cun h�rombined 10 meU�he sixelhruholdJ that ue pem�anrntly or ieuonally inundated.(struc�urea jor eggdnying by umphibinnsJ You do nor huve ro name th¢rperies. _Invuive plants cover less Ihan 25%oCthe wedand arca in each etratum of plants 2 Do no�inrlude Eurusiun Miljoil,reed cunnrygrusr,purple looacsrrife, Cunudfun Thi.rde NOTE:The 20%stured In turly prinringJ ojrhe munun!on puge 78 ir un error. lf you counted: >19 sptcies Lisr speries Lelow ijyou want�o: S-19 speciei oin - � H 1.TOTAL Score- po[ential for providing habi�at I ��; I <S species pou�u�0 ,�dd the scores rom Hl.l,Nl.:,H1.3,Fll.4,KI.S � � ___—� Commenb � Total for page � We�land Raling Furm—a�estem Washington I] Allgus1:004 R'etlnnd Ra�ing Form—weeiem�4'uhinglon 14 Augast 2004 e�ersion: CpdaiW H�nh nrw�1'DFW delinitions Oa.Z00H �'ersion: Updaud wiih new WDFW'deGnnions Oce 2008 \�'ctland namc or numLrr \1'etltnd nune or number_ H 23 Ne�or adiacrnt m ot�prioritv habitats li<ted by WDFW(ser ncrc and compJe�e }{�,pnes the weUand unit have Ihe oppor[unity to provlde habitat far mrny epec(es.' , �� dacrtp�ionr ojWDFW prforlry hablm�s,and rhe cnuntier in which rhey can be jound,in � fhePHSreport hlilt;��ad(K�.�va.rnr/Gnh/nhsllsr.hnriJ H 2.I ikii ffers (sce p.80� Flyun_ Whk6 of the following priority habitats ue within 330R(IOOm)of the wedand unit7 NOTE:the Choose thc deseription(ha!hetf rcpreaents cond(dan ajbuJfer ojwetlunJ uniL The hlPhtat ecaring tonnectiona do not huve to be re(utively unJiaturbed. rnterion thn�applicr�o!he wedand ir�o be ured!n�he radng.See textJor deftnfrion oj _Aspen Standf:Pure or mixed etands of aspen greater than 0.4 ha(1 acre). undisrur-bed." _Blodiverelty Areas aod Corridon:Mese of habitat that ue relatively importent to various — 100 m(370ft)of relatively undisturbed veget�ad areas,rocky ueas,or open waror>95% �peciet of native fis6 and wildlife(fulf Jest�lptione In WDFW PHS r¢port p./51). of t'vcumferenca. No structures are within the uadisturbed part of butier. (relatively Herbaceout Bolds:Variable aize patches of graas and forbs on ehnllow soilo over bedrock. undisNrbed also moane no•gazing,no landsc�ping,no daily human ute) Polnb-S _Old-arowth/M11ature torab:(9ld-erowth west of Gscade crest)Stands of at least 2 tree — 100 m(330 R)of relativcly undisturbed vegetated areae,rocky arws,or open water> specia,forminQ a multi-layered caoopy with occasional small openings;with at Iwst 20 50% circunderrnce. Pointt�4 trea/ha(B treeilacre)>S I cm(32 in)dbh or>200 years of aaa (Mature Corests) Stu�ds -- 50 m(170R)of relatively undisNrbed ve�ented ueas,rocky areu,or open water>9 ° with rverage diuneters exaeding 53 cm(2I in)dbh;aown cover may be less that l00°/; circumference. ntr- crowo cover may be lese t6at 100%;daay,decadence,numbers of sna�s,and quanNry of — 100 m(330R)of relatively undisNrbed vegetated areas,rocky vas,or opeo wa er>25°h IerQe downed material is geoenlly lest t6an that found in old-arowth;80•200 yars old circumferrnce,. Polnts-J wut of the Gscade crcst. — 50 m(170R)of relatively undisturbed vegented arws,rocky areas,or open water for> Oreeon whlte Oak: Woodlanda Sundc of pure oak or oaWconikr associations where 50%circumference. Polnt�-3 canopy coverage of the oak componen[is important(�ul!de.rtriptfon.r in WDFW PNS If bul'fer does not meet any of the crlteria above report p.I58). — No paved areas(except paved trails)or buildings within 25 m(SOft)of wetlsnd>95°/, _Rlp�rian: The uea adJaceot to aquuic systemti with flowing water d�at wntains elements of circwnferenca Light to moderate gnzing,or lawns ue OK. Potnb-2 both aquatic and terteetrial ecoeyatertu which tnuNally intluence each other. — No paved areas or buildings within SOm of wedand for>50%cucumference. Weetslde Pralrlet: Hcrbaceous,non-forested plant communitics that can eithcr take the Li�lu to moderate�ezing,or lawns ue OK. Polnts�I fortn of a dry pra'vie or a wet prairie(fu/I descrip�iont in WDFW PXS rtpor�p. l61). — Heary grazinb in buffer. Poinb�t Inrtream:The combination of physical,biological,and chomical processes and conditions — Vegctated bu8'ers are<2m wide(6.6R)for more than 95°/ofthe e'vcwderenu(ag.tilled that interact to provide fUnctioual life 6istory requ'vements for instream tiah and wildliCe fields,p�ving,basalt bedrock eztend ro edge of wetland Polob�0. rceowcec. — Buffer does not meet any of the critcria above. Polnti�1 � _Nearohore:Relatively undisturbed nearshore habitats. These includt Coastal Neushore, Aerial hoio showin buffers Open Coest Nearshore,and Puget Sound Nearshore.(�ull descriptlona oJhabi�arr und rhe I i 2.2 Corridorc and Connections(see p.81) deJln!llon oJrelutively undtsrurbed ure in WDFW report pp.167-l69 und gforsury in H 2.2.1 Is the wotland part of a relatively undiaNrbed and unbroken vegetated corridor �PP��d�A)� (cither riparian or upland)that is at leaae I 50 ft wide,has at leut 30%cover of thrubs,forest _Caves;A nahually occurring caviry,recess,void,or system of intercunnected passages under , or native undismrbed pravie,that connects to estuuies,other wedands or undisturbed the euth in soils,rak ice,or other aeological formations and is large enough to wntain a uplands that are at Icast 250 atres in si2e7 (dama In ri/wrfnn corridort,heuvlly u.redgruve! hunnn. rcu�ds,paved roads.are ronsidereJ breakt in tht corridor�'.'L�"�"'-`� _Clifft:Grcater thau 7.6 m(25 R)hiQ6 and occurring below 5000 ft. YES�4 pointi (yo ro H 2.J) sN pare-If .7ZZ� _Tilu�:HomoQenout are�i of rock rubble rmQing in average�ize 0.I S-2.0 m(0.5-6.5 ft), H 2.21 Is ihe wedand part of�relatively undisturbed and unbroken vegeuted cortidor composed of basalt,andesite,and/or udimentary rock including riprap�lides and mine (either riparian or upl�nd)that is at Ieast SOft wide,hu at least 30%cover of shrubs or tailings.May be a�eociated with clift�, forest,and connects to esNories,other wetlands or undisturbed uplands that are at least 25 _SnaQe and Logt: Trete prc considered snags if tliey are dead or dying and exhibit eufficient acres in size! OR a Lake-frinQe wetland,if it does not have an undisturbed wrtidor ai in dec�y chvuteristiu to rnable uviry excavatioduse by wildlife.Prioriry snags have o the question above'! diameter at broast height of>S 1 cm(20 in)in westem Washington and are>2 m(6.5 R)in YBS�2 polnts (go to H I.3) NO-H 2. heiaht. Prioriry logs are�30 cm(12 in)in divneter at the largest md,and>6 m(20 ft) H 2.2.J Is the wetland: �O°S• within 5 mi(8km)of a brackish or salt water esNary OR If wetland has 3 or more prioriry habitau-4 polntt within 3 nv of a large field or punue(>40 acrcs)OR If wetland has 2 priority habitats-3 pointa wi ' ' e greater than 20 acres7 l If wetlwd h�s 1 priority 6abitat�1 polnt o habitats�0 poin �� ' S�1 oi NO�0 olnte Nore:A/l vrgernred wrdar�dr ure hy d�nition u prioriry ha not included in rhis �� lis�. Nearhy w�ednnds ure addressed in ucstion N:.41 Total for page 5 �'.�eilandB:ilineForm-wes:cm\��,sshington IS Augu5f.00J �5'edandRa�ingFo�m-westemR'ashington 16 Augiut2UUJ cerswu t L'pJ.�icd wiih ncw�1'GF\t'deGniuor�Oc�.:C�o3 ��ersion 2 Updated wilh new W"UFW'delinitimu Oct.:OG9 \Yeiland nnmc nr numbcr Welland name arnumbCr_ CATE ORIZATION BASED ON SPECiAL CHARACTERISTICS f I�.J�1'ctland l.andscaoe(rhonse�he one description ojlhe landscnpe around the wedand rhut bes�firs)(sce p.84) There are at least 3 other wetlands wid�in i,mile,and�he connections benveen t6em ue Please dettrmine if tht wetland mee�s lhe attribules described below and circle!/ie relatively undisturbed Qight�gazing between wetlands OK,as is lake�hore with some appropriale answers and Category. boating,but connections should NOT be bisected by paved roads,fill,fielde,or other developmenc. points-5 Wetlatid Type Category l'he wedand is Lake-Binge on a lake with little disturbance and there ue 3 other lako-fringe .Check�off itnY criterra�that upplylo the wa(land. Crrcle the Category when the weUands within'/,mile points-S • . �� . . . There are at least J other wedands within%mile,BUT the connections between tl�J�t,,,� _ �a �ro riate�criteria are mei.��.�. �� disNrbed �pQ�p(�� SC 1.0 Estuurine weflands(sec p.N6) The wedvid is Lake-fringe on a lake with disturbana and thero are 3 other lakafringe Doas the wetland unit meet the following critona for Estuarine wetlands? weUand within%nule poinq�3 There is at least 1 wedand within i n,;lc. points-2 —The dominant water regime is tidal, There are no wetlanda within%mile. p0int��0 � —Vegetated,and —With a saliniry greater than 0.5 ppt. H 2.TOTAL Score- opponunity for providing habitat I Q� I YES� Go to SC 1.1 NO_ .I dd the rcores rom NI.1,N2.1 X1.3 K2.4 � v � SC 1,1 is the wetland unit within a National W ildliCe ReCuge,National Park, TOTAL for H 1 Gom page 14 National Estuary Reservo,Natural Area Preserve,State Park or Educational, Ca�•� � EnvironmenWl,or Scientific Reserve designated undcr WAC 332-30-151'? Total Score for Habitat Functions -add tlu points for H l,H 2 and record the result on ' � YES-Cate or I NO o to SC 1.2 � SC 1.2 Is the wctland unit at least 1 acre in size and meets at least two oCthe following thra conditions? YES=Category I NO-Category II Cat I —The wetland is relatively undisturbed(has no diking,ditching,filling, Cat,11 cultivation,grazing,and has less dian 10%cover of nomnative plant ' species. If the non-native Sparlina spp.are the only species tliat cover more than 10•/.olthe wedand, then the wedand should be given a dual Dual rating(I/II). The aroo of Spartina would be rated a Category lI wl�ile tlie ratlng relatively undisturbed upper marsh with native species would be a �� Catogory I. Do not,howaver,exclude the area of Spartina in determining the size threshold of 1 acre. —At least'/.of the landward edge of the wetland lus a 100 tt buffer of shrub,forest,or un-grazed or un•mowed grassland. —The wetland has at least 2 of the following features:tidai channels, depressions with open water,or contiguous freshwater wedands. I Wetland Ruing Form-westem W�shing�on I� Auguct 2004 Wetland Ro�ing Form-we�tem Wuhingron IS August 2004 version 2 Updated with new WDFW deGnitions Oot.2008 venion 2 Updated withnew WDFW definitione Oct.2008 15'ci!dnJ name er number Wetland nune or number_ SC 2.0 Nntural Heritage Wetland� (sea p.87) SC 4.O Forated WeUand�(see p.90) i 'Jatural Heritage wetlands have been identified by the Washington Nahual Heritage Cat.I Progran�/DNR as either high quality undisturbed wetlands or weNands that support Does the wetland unit have at least 1 acre of forest that meet oue'f these criteria for I state Threatened,Fndangercd,or Sensitive plant species. tho Department of Fish and Wildlife's forests as prioriry habitats. Jjyou anrweryes SC 2.1 Is the wedand unit being rated in�Section/Township/Range that contains a you wil!st!!l need ro rate!he wetland based on ita junctions, Naturel Heritage wetland7 Qhis question is wed m screen out mort sites —Old-Qrowth fore�n:(west of Cascade crest)Stands of at least two tree species, bejore you need�o contact WNNP/DNR) fomung a multi-I�yered canopy with occasional emall openings;with at leut 8 siTiR informxtion from Appendix D_or aeceued hom WNHP/DNR web site trees/actt(20 trees/hectare)that are at least 200 years of age OR have a — diameter at breast height(dbh)oC32 inches(81 cm)or more. YES_–contact WNHP/DNR(see p.79)and go to SC 2.2 NO_ NOTE:The criterion for dbh is based on measurements for upland forests. Twahundred year old Vees in wetlands will often have a smaller dbl� SC 2.2 Has DNR identifed the wedand as a high qualiry undisturbed wedand or as because their Qrowth rates are often slower. The DFW criterion is and"OR" or as a site with state threntened or endangered plant species? so old-growth forests do not necessarily hove to have hees oCthis diameter. YES=Category I NO_not a Heritage Wetland —Mature fore�b:(west of the Cascade Crest)Stands wherc the largest trees are S('}.0 BoR� (scc p.87) 80–200 years old OR have nvenge diameters(dbh)exceeding 21 inches Uoes the wetland unit(or nny pnrt of the unit)meet both the criteria for soils and (57cm);crown cover may be Iess that 100%;decay,dacadence,numbera of �egetation in bogs?Use the key below!o identify if rhe wetlnnd is a bog. Ijyou snags,and quantiry of large downed m al is generally less than that found ,m�swer yes you wi(f srr!!nnd to�are the werland based on!tr juncrlons. in old-growth. l. Does the unit have organic soil honzons(i.e.layers of organic soil),either YES- Category 1 NO_not a forated wedand with special chuacteristics Cat.l peats or mucks,ehat compose 16 inches or more of the�rst 32 inches of the SC 3.0 WeUandi in Coa�tal La oom(see 91 soil profile'?(See Appendix B jnr_a_fi to identify organic soils)?Yes- Q p' � go to Q.3 /� No -go to Q. Does the wetland meet ell of the following criteria of a wetland in a coasml lagoon'1 1 —The wetland lies in a deprcssion adjacrnt ro manne waters that is wholly 2. Does tlie unit liave organic`coils,eit eats or mucks that are less than I6 or partially separated Crom marine waters by sandbenks,gravel banks, inclies deep over bedrock,or an impermeable hard�an such as clay or sl�ingle,or,less frequently,rocks volcanic ash,or that art tloating on a lak rp'oiia? —The lagoon in which the wedand is located contaius surface water tliat is Ycs-go to Q.3 No•Is not a bog for puryose of rating saline or brackish(>0.5 ppt)during mos the year in at least a portion J. Does the unit have more thau 70% AND of the lagoon(needs ro be measured r fhe bottamJ uther plants,if prescnt,consist of the"bog"species listed in Table 3 as a YES�Go to SC 5.1 NO_not a wetland in a coastal lagoon significant component of the vegetation(more tlian 30%,of the total shrub and lurbaceous cover cousists of species in Table 3)7 SC 5.1 Does the wetland meets�II of the lollowing three conditions7 Yes–Is a bog for purpose of rating No- go to Q.4 —The wetland is relatively undieturbed(has no diking,ditching,filling, NOTF.:If you are uncertain about the extent of mosses in the understory cultivation,grazing),and has less than 20%cover of invasive plant you may substitute that criterion by mwsuring the pH of the water that species(see list of invasive species on p.74). sceps into a hole dug at least 16"decp. If tlie pH is less than 5.0 and the —At least'/.of the landward edge of the wetland has a 100 ft buCfer o! "bog"plant species in"fable 3 are present,the wetland is a bog. stwb,forest,or un-grazed or un-mowed grassland. Cat.1 /. Is the unit Corested(>30%cover)with sitka spruce,subalpine fir,westem —The wetland is larger than 1/10 acrc(4J50 squarc feey red cedar,wcstern hemlock,lodgepole pine,quakinQ aspen,Englemann's YES–Category I NO=-Category II Ca�•�� spruce,or western white pine,W ITH any of the species(or combina[ion of species)on the bog species plant list in Table 3 as a significant component oC the ground cover(>30%coverage ojthe total shrub/herbaceous cover)? 2, YES- Category 1 No_Is not a bog for purpose of nting Co� � Welland Rming Form—westem Wuhington 19 Augual 2004 Wetl�nd Raling Form—waslem�4'ashing�on -0 Aug�ui:OUJ versinn: UpdeteJ with new WDFR'definitions Oci 200R vereion 2 Updaled M�ith new W'DFW definitions OcL 2008 14'��land neme or numfier SC 6A Inurdunal Wetlands (see p.93) Is tlu wetland unit west of tlie 1889 line(also called Western Boundary of Upland i(�wnership or WIIUO)'l YES-go to SC ti.l NO not an interdunal wedand for ndng I ljyou an,rwer yes yau wi/l sti(!nred fo ratt the wrt(and based on!tt junclrotts. In practical temis that mcans the following geogrephic oreas: • Long Beach Peninsula•lands west of SR 103 • Grayland-Westport-lands west of SR 105 Occan Shores-Copalis-lands west of SR 1 I S and SR]09 •SC 6.I Is�he wetland one acre or larger,or is it in a mosaic of wetlands that is once acre orlarger? YES a Category I[ NO—go to SC 6.2 Cat.II SC G.2 ]s the unit between 0.1 and I acre,or is it in a mosaic of wetlands that is Uetween 0.1 and 1 acre'7 1'F'S=C'atcg>n L'I CaL I❑ �Cutc�9ry�ofwotlnnd'�buticA.pn�Sj�ec(al�CharHctcrlel(�s �� ;; Choose the,''hrghc.r(l;'raring:jitietJ,n"ndfall,r'-iirrq.�se,yeraLcufegorie,��and retP,�rl oit�� p. L . _,. . . . � �� ,�.^�s,`.:. I It�ou nns��ercd`�O(or all tv es a�;er �ot A,�l •able"bn' f ' :,,w� ��`"�`'�` ',t'ril.+nd R.iing Forrn—�.osiem�l'yching�on 21 Augiut.00i �crsiun: Vpualcd u ilh new\VUF\Y�elinitinns Ou.2008 , '��'riland namt or numLer µ'ell�nd namt or numbet_ �vETLAND RATING FORM–WESTERN NASHINGTON Does the wetland unit being rated meet any of thc criteria helow' �'crsiun 2-Updaied July 2006�o increase accuracy and reproducibiliry among were If you answer YES to any of the questions below you will need to protect the«�edand Updated Oct 2008 wi�h ihe new WDFW detinicions for prionry habihtr aernrding to the re�ulations recarding the sp�cial charaeterictics foun�l in the��etland. Varne ot wedand(if knowti): V"L�''�/ fJ Date of3ite visit: ��Z��v � '"�;�Check�I.,(vt,for�Vetlands ThaC:�Tay,,tieed��Additioiial Protection. � YES YO �� I ,`r"��'�' iu additlon�to th�e � Rated by � Trained by Ecology7 Yes_No_ Daee ofaaining protectii�n'recommendcd for its cate orv S!'I.11�. ,.� i� . ...., a . . �� ,.aa,. . , . . � .,n.,, i:��,•d ' SEC:____T\1'NSHP:_RNGE:_ Is S/T/R in Appendix D'1 Yes_ No_ ThrenleneJ or Endangerr��unima!nr plun�species�7 b'speciesl.' /, s�3��s f. For the purposes of this rating system,"docwnented"means the wetland is on the �� Map of wetland unit:Ffgure_ Estimated siz a ro riate state or federal database. SP2.Has rhe wetland unit been documented os habitar for any State listed St1MMARY OF RATING ThrearenedorEndangeredantma(rperles? For the purposes of this rating system,"documented"means the wetland is on thc �':itr�orc hased on FU\C"TIONS rovided b wetland appropriate state databasa Note: Wetlands with Statc listed plant species are 6 P Y cate orized as Cate o I Natural Herita e Wetlands see .19 of data form. 1_ II_ II I_ IV_ SP3. Dae.r rhe wetland unit conrarn individuafa ojPriority specirr lisred by the WDFWJor the state? — Score for R'ater Qualiry Funcdons �(j SP4. Does rhe wetland unit have a local significance in nddition ro its functrons'? ' Catcgury I�Scc�re�=70 Catcgory f1–Score 51-ti9 Scorc for Hydrologic Functions For example,the wetland has been idcntified in the Shoreline Master Category III=Score 30-SO Score for Habitat Funetions P*ogram,the Critical Areas Ordinance,or in a local management plan as Catccorv 1\'–ticore�-30 having special significance. TOTAL uore for FuocNoo� 3 Catc�;ur� based nn SYECIAL CHARACTERISTICS of wetland 1_ il_ Does not Apply_ To comolete 1he next pnrl oflhe data shee!vou will need fo determine the h'vdroreomorohic Clnss qfthe wer/and beinQ rated. Final Category(choose che��higheeP'crtegory trom above) � The hydrogeomorphic classification groups wetlands into those that function in similar ways. 'fhis simplifies the questions needed to answer how well Uie wetland Cunctions. The Hydrogeomorphic Class of a wedand can be determined using the key below. See p.24 for more detailed inswctions Cummar� of batiic informatiun�buut(hc��ctland unit on cla55iCy�ng N�etlunds. We[land Unft hus Special •'�Vetland HGiti1'Cless ��+„. CheractCrfstice usedforRatln . ,��` Estuarine I)r irrssional �'atural Heri[a e��'etlanJ Ki��erine !to Lake-frin e 1lature Forest Slo e Old Growth Forest Flats Coastal La oon Freshwnter Tidal Interdunal None of the above Check iC unit has multiple HGM classes resent Welland Rating Fonn-western Wrshington 1 August 20U4 \4'cUand Rating Fnrm-westem�1'aching�on � Au�ust 2UOJ �cniun 2 Tu be used w�lh Ecology P�blicafiun Od-06-025 ��ersion: Updated with new\4'DF\4'deCnitiu�u Oct.2008 - . . \�'eiLind n�.vnc or number Wedand nune ornumber_ (�lassificatinn of��'etland l?nits in��'estern��'ashington 5.Does the entire wetland unit meet all of the following critcria' The unit is in a valley,or stream chattnel,where it gcts inundated by oacrbank � }�, . , ,,„, , ---, ,.—� _; tlooding from that stream or river I lf the hyArologic cr[tcrl�Itsted in�each questfon do not apply to the entlre unit being��'.. The overbank flooding occurs at least once every hvo years j rated,'rou probably ha�e a unit�vith multiple HG�1 claeRet.'In thie case;Identtfy Hhich �.,,. NOTE:The riverine unit can contain depresslons that a�e ft!!ed N irh ti�ater�,hen thc rir��r is hvdroluglc crlterla in questionR I-7 apply,and go to QuesNoo A '�„„� � no 'ng. � .� _ � ..� , . d��i:,,�� ._.. �---- - ----- y go.t YES-ThewetlandclassisRiverine 1.:\re the� e�els in the entire unit usually controlled by tides(i.e.except during tloods)7 6. s t e ennre wetland unit in a topographic depression in which water ponds,nr is saturated ro the . O-go to YES-the wetland class is Tldal Frinee surCace,at some time during the yeac t oude�,�jpresznt,is hibhcr rhmi the If yes,is the saliniry of the water during periods of annual low tlow bclow 0.5 ppt(parts ptt �n�erior ojrhe wetlnnd. Ihousand)? YES-Freshwater Tldal FrinQe NO-Salhvater Tidal FrinQe(Eetuarine) NO-go to 7 Y. -The wetland class is Depreeelon�I 7.Is the entite wetland uni very at arca with no obvious depression and no overbank IJyour wetlrsnd can bc dnstified as n Freshwater Tida!Fringe uae the forms jor Rlverine tlooding. The unit does not pond aurface water morc than a few inches.The unit sccros to be x etlands. /jit is Sa/twater Tida!Fringe ir is rareQ as an Esruartne wetland.WeNands that maintained by high groundwater in the area. The wetland may be ditched,but has no ob�iuus «ere called estuarine in the first and second edirions of Ihe rating sys[em are called Salt na[ural oudet. ��'ater"I'idal Fnnge in the Hydrogeomorphic Classification. Estuarine weNands were NO-go to 8 YES-The wetland class is Depre�ilonal categorized separately in the earlier editions,and this separation is being kept in this rcvision. To maintain consistency between editions,the term"Estuarine"wetland is kept. Please note,however,that the characteristics that define Category I and II estuerine 8.Your wedand unit seems to be difficult to elassify and probably cuntains se�crxl dil'ferent Hc;�t wcdands have changed(see p. ). clases. For example,seeps at the base of a slope may grade into a riverine tloodplain,or a snial I sheam within a deprossional wedand has a zone of flooding along its sides.GO BACK AND '."f hc cntire wetland uuit is Oat and precipitation is the only source(>90%)of water ro it. IDENTIFY WHICH OF THE HYDROLOGiC REGIIv1ES DESCRIBED IN QCIESTIONS I-7 c�row d surface water runof(are NOT sources of water to the unit. APPLY TO DIFFERENT AREAS IIJ THE LTNIT(make a rough sketch to help you decide). lJse !�Jp„-,Yu.t YES-The wedand class is Flat� the following table to identify the appropriate dass to use for the rating system if you have se�eral If your watland can be classified as a"Flats"wetland,use the form for Depresslo�al HGM classes present within your wedand. NOTE:Use this table only if the class that is wetlands. recommended in the second wlumn represents 10°/or more of the rotal area of the wetland unit 3. Does the entire wetland unit meet both of the following criteria7 being rated. If the area of the class listed in colwnn 2 is less than 10°/of the unit;classify thc _Tlie vegetated part of the weNand is on the shores of a body oC permanent open water wetland using the dass that represents morc than 90%of the total area. (without any vegetation on the surface)at least 20 acres(8 ha)in size; t M -la.�'1b" ' �? btfn ". _A�t ast 30%of the open water area is deeper than 6.6 ft(2 m)1 Slo e+Rivenne ' Rivcrine �.,.•-•�4t��o,�oJY' YES-The weNand class is Lake-frinQe(Lacuetrine FrinQe) Slo e+De rcssional Ue rossional 4.llocs the eutire wedand unit meet all of the following criteria'? Slo e+Lake-frin e I.ake-fnn e The wetland is on a slope(slope can be very gradun�, De ressional+(U�erine alon �tream within boundary De ressi�nal The water flows through the wetland in one direction(unidirectional)and usually De ressional+Lake-frin e De ressional comes from seeps. It may Oow subsurfece,as sheedlow,or in a swale without Salt Water Tidal Fringe and any other class of heshwater "Creat as ESTUAR W E under distinct banks. wedand wetlands with special The water leaves the wetland wlthout belnQ Impouoded? characteristics NOTE: Surja�e water does not pond in rhese rype ojwer(ands ercept occaslona!!y in ve,ry small and eha!!ow depressions or behinJ hummockr(depreuion:are usually If you are unebla still to determine which oC the above criteria apply to your wedand,or if y��« _.�;�t dramerer and less than!foot rieep). have more than 2 HGM classes within a wedand bounda ry,classify the wedand as Depressional 1�0-g„to 5' }'F,S-'i'he wetland class is Slope for the rating. ".�ell.in,1 Rdnna Fnrm-westrn�`.1's hin4lnn 1 AugLLSI:OU4 14'etland Raling Form-w�estem\\'ashinaton � AuBual:0!�4 �ersion 2 CpdeicJ�.ith new��'UF�1'deGniuoru Oci :OGe ��arswn 2 Updated u�ith naw R'DFN'deCnitions Oct :u0tl R'etland name or numbcr \4'eiland namc or numbcr — __- : __ (r,fl� D, llepressional nnd Fluts�Vetlands Points D Ucpressional and Flats��'etlands Points HYDROI,OGiC FL'NC7IONS • Indicators d�at Uie wetland miit func6ons to e>��ir�xo« �VAT6R QUALITY,FU`'CT1015 - Indi�ators tl�ut tlie wetla�id uii.c functions to rcdiice tloaiin and strcam dc datioii - ��F� pu bi+k> , im rpve u�ater «ulitv C.�: ' D 3.Does the wetland unit ha�c the ootentlal to reduce tluuding and crosiunY (seep.46) � U I.Docs the�ti'e11anJ unil ha��e thc Potcnti:il tu impruve�+�aler qualit��"' (seep.38) D 3.1 Charactcristics o(sudaca water tlows out of the wedand unit D I.I Characteristics oC sudace water Flows out o!the wetland: Figure_ D Unit is a depression with no surCace waeer leaving it(no outlet) �oinu= Unit is a depression with no surtace w�ter leaving it(no outleq iNs=ST Unit hss an inlertnitlently tlowing,OR highly consvicted pertnanently tlowing oudet poi� D Unii has an intermiumtly Oowing,OR highly constneted permanmdy Oowing ouqel pomis�2 Unit is a"11st"dcpre�sion(Q.7 on key),or in the Flap cl+ee,with permancnt�urCrce outllow�nd Unit has an unconstricied,or slightly constdcted,surf9ce ouUe�(pesmnnmtly flawtn,q)poinle�I no obvlou�natunl outl�l anNor oWlet is a man•made di�ch points�1 Uni�is a"flef'depresaion(Q."7 on key),or in Ihe Flals class,with perm�nmt surf�ce outilow md (�Jd/ich Ir no�permanemlyJ]aH•Ing o-rar�ml�ai"inlermi��rndyJlnwing") �,�1 no obvloui natural uullet and/or outlet is a man-made di�ch poinls�I Uni�has an uncona�neted ot sli htl constncled surlace oullel ermanen�! owin inls-0 (lf di�ch it rrol prrmanrndy flo�ving Inw unH a.r"Ml�rniillen!ly flowinR��) 3 D D 3.2 Depth of slorage dutlug wet periods ProviOe hoto a tl�awln ErNmutt rhe height ojponding ubove the bottom oJthe outlet For unils wtrh no our[et S 11 The soil 2 v�ches below the surface(or duff layer)is clay or organic (use NRCS meusurrfrom the surface ojpermanen�w�ter or deepest purt(iJdryJ. drJinirions) Muke of ponding are 3 ft or morc above the surface or bottom of oudet points-7 D }'F.S points-4 � The wetlend is a"hesdweter"wetland" pouits=5 NO s a Marks of ponding behveen 2 ft to<3 R Crom surface or bottom of oudet poin -5 D 1.3 Charactoristics of persistent vegetation(emergent,shrub,and/or to ardin clpss)Fipur�_ Marks ate at least 0.5 ft to<2 R Gom surface or bottom of uutlet 'p� mts- Wetland has persistent,ungrazed,vegetation>-95%of area �in[s�� Unit is flat(yw to Q.2 or Q.7 oa kay)but hu small doprcseions on tlie surface that trap D Wedand has persistent,wigazed,vegetation>�I/2 of area �1'Wn[ water points=I ^�. Wetland has persistent,ungazed vegetation>�V 10 of area points-I Muks of ondin lesa thm 0.5 ft oints=0 � Wedand has persistwt,ungazed vegetation<1/10 of area poinb-0 a D D 73 Cuotribution of wedand unit to storage in tho watashed Ma of Cowartlin ve etatton classes � Estimure�he ratio ojlhe nrea of upstream bnsin canvibuting rurjace wuter m�he wedund U1.4 Characteris[ics of seasonal ponding or inundation. Flpun_ ro the areu oj�he wedund unit Itself. Thrs is rhe nrea oj�he wedrmd unir rha�is panded jor ar leurr 1 monrhs,bur drler out The uea of Wt basin is lus than 10 times the uea of unit points-5 D somerrme during the yenr. Do not counr the meu�hat!s permunendy ponded Es�imure 'Che area of the basin is 10 ro I00 times the uea of the unit oin -3 area as the«verage eondition S our oj10 yrs. The area of the basin is morc than 100 timei the area of the unit omts� Q Area seasonally ponded is?%total area of wetland pointt-4 Ent¢e unit is in the FLATS class orots-5 Arca seasonally ponded is>'/. total area of wetland oints= D Totnl for D 3 Add the porn�s in the boses above � `� � Area seasonally ponded is<'/. total area of wedand omts- Q _ Ma of H dro eriods ��_ D D 4.Doea the weHand unit have[he on�ortunitv to reduce Oooding and erosfon? (seep.49) D Total for D 1 Add rhe points in the boxes above I_� _I Mswer YES iCthe unit is in a location in tt�e watershed where the tlood storage,or reduction in weter velociry,it provides helps protect duwnstroam property and aquatic p D 2.Docs the wetlnnd unit have the oonortunitv to improve water quality7 (see p.41) resources from flooding or excessive anNor crosive flows. Answer NO if the water Mswer YLS if you know or believe there arc pollutants in groundwater or surface water coming into the wedand is controlled by a structure such as flood gate,tide gate,flap coming into the wotland that would othenvisc reduce water qualiry in streams,lakes or valve,reservoir etc.OR you wtimate that more than 90%of the water io thc wcdand is �oundwater downgadient from the wetland.Nore which ojthejo!lowing condltiane �om groundwater in areae where demaging groundwatcr flooding does not occur. provide the sources ajpollurnn�s, A unit mny have popumn�a coming from severn! Nole which ojthe jo!(owing indlcnmrs of opportuniry uppfy. sourees,but uny srng/e source would qv�Jfjy�u opportuniry. — Wetland is iu a headwnter of a river or stream that h¢s flooding problcnss — Grazing in the wetland or within I50(1 — Untreated stormwatcr dischuges�o wetland — �iCetland drains to a river or 9tream that has flooding problems — Tilled(eidc or orchurdt within I50 R of wetland Wetlend has no outle[wd impounds surface rueoff water that might otherwise — A stream or tulvert discharges inlo weHanJ ihal drains developed ueaz,residential areas, flow into a river or stream @tat has tlooding problems ntUltipliei �amud tields,roads,or dear-cut logging _ �� .�, — Residemial,urban areas,goltcourses�re wilhin I SO ft of wetl¢nd iftUlhplie� YES ulti liei is NO tllulti liei i5 I — W etland is fed by groundwyter high in phosphorus or nitrogen — oeher Z., D TOTAL-HydraloQic Functlons Multiply the score from D 3 by D 4 � 4 YES u ti ier�s 2 NO enulti lier is 1 — AJd seore!o lable or�p. 1 p -�va ter Quality Functlon� Multiply the score from Dl by D2 � � Add scorc to table on .1 WellanARatingForm-weslemWashington S August2004 WctlandRatingFortn-wcstcmlVr4hing�on d August20UJ vcrsion: Updnlcd with new\4'DF\V definitior�s Ocl 2008 �crsion 2 Updatrd with new�WDF\4'detinitioru Oct.2008 � ll'<iland n.�me cr number �4'Clland natne or number_ 1 ... i r.�.. 1 xr 0� t9 '. H 1.4.Intcrso£Ision of habitats(str p 76/ Igure_ These questtons apply to wet/ands of a�!HG� S�'� � y �" ' �ti�� + Decide&om the dia uns below whether inters ersion between Cowardin ve etation 1-IABITA'�;�,F[JI�C'f I�N� IndiC8C0i�tltat:,U,Ut `�� 1 �"��J�w 4u�•. classes(desaibed H l.l),or the classes and mvegetated ueas(can include open water or mudtlats)is high,medium,low,or none. II I.Uoes the Netland unit have the potential to provide habitat for many epecla? II I I.I V eeetuion structure(see p. 72) Flyur�_ O �� O Cherk nc�tvpes ojvegrtution clrvses present(as d�ned by CowarJinJ-Size thruhofdjor euch \� � d�iss is::at're or morc than 10%ol the nreu iJunir is smaller rhun 2.5 ucrer. � ; _Ayuatic bed � ��- ' Emergent plants .� _�B'C�ub/stwb(areas where shrvbs have>30%cover) Non�-0 poi I.ow�-t point htoderate=_poinu _ � Forested(areas where trees have>30%cover) '-- lj�he unir hus a joresteJ c/ass rheck il� �� _The forested class has 3 out of 5 strata(canopy,sub-canopy,stwbs,herbaceou�, ` 1 moss/6Round-covery that each cover 20%within the forested polyQon _ ',�� Add thc number ujvegetallon atructurer thnr yurdify. Ijyou have� ; � 4s[ructures ormore points 4 —� � ��;�� ,,.,, ''.'.� Map ol Cowerain vegetatlon ctasses 3 structures points-2 2 struchues oints- O � 1 � � [riparian breided ch;uvicls] i shucture o�nts� I IiEI� -3 points t I 1.2.Hvdrooeriods(ser p.73) flyun_ NOl'E:If you have(our or more classes or three vegetation classes and open water �y Check thc rypes ojwurer rcgimes(hyJroperlaltJ preaen!within fhe wefland. The walei the ratin i�alwa s"hi h". Use ma of Cowar0ln ve etation classes v � regrme has to cover more fhan!0%oJ�he wetlund or�/,ucre fo count.(see tut for H 1.3.S�ecial Habitat Features:(see p.77) iAescrlptfans oJhydroperfodsJ Check the habirur jenmrer thar ure preaent in rhe wedand. The number ojchecks i.r the _Pemianently Oooded or inundated 4 or rtaro types presmt pointa-3 num6er ojpoinra you put inm�6e nexf column. ' Sasonally flooded or inundated 3 types present pointa-2 L�rge,dowoed,woody debris within the wetland(>4in,diuneter and 6 ft long). Occasionally}looded or inundated 2 types prwent point-I Samrated only I type prostnt points-0 _Standing snags(diuneter at the bottom>4 inches)in Ute wedand �nanently flowing stream or river in,or adjacent to,the wedand _Undercut banks ere present for at least 6.6 ft(2m)and/or overhanging vegemtion extends at tieasonally flowing stream in,or adjacrnt to,the wedaod leut J.3 ft(lm)ovtr a atream(or ditch)in,or contiguous with the unit,for at least 33 ft _Luke Jringr we�land-2 polnh (IOm) _Frrshwarer rida!we�land-2 pelnts Map of hydropedods G _Snble ateep bank+of fine material that might be used by beaver or muskrat for denning (>30degree slope)OR signs of receot beaver activity are preaent(cu�rhruba or rrees�hat H I J.R_clmess of Plant tip�.�i �,(stt p. �SJ hove no�ye�turneAgrey/brown) Count the nwnber of plant species in[he wetland that cover at leut 10 ft=. (Jt�'erent/wtcher pt least'/.acre ofthin-stemmed persistent vegetation or woody branc6es are present in ueas ojrhe snme species cun he combined to meet the tize rhresholdJ that are pemunendy ar seuonally iauodoted.(structures jor egg•luying by amphihinnsJ You do nor h«vc ro nume the rpecics. Inva�ive plants cover less than 25%a of the wedand area in tach straNm of plants Do rtat include Eurnsirm Miljoil,reeJ cnnarygrusr,purpleloosertrije, Canadiun Thierle — v If you counted: >19 species o NOTE:The 20%ttufed In faily prin(ingl oj(he manuu!on page 78 it an error. Lisr spaies below ifyou wunt m: 5-I Pspecies points-t H 1.TOTAL Scorc- potential for providing habitat � _ � — � <S s ecies 0 dAA�hesrores rom//l.l.HL.7.1!/.3,H/.J,HI..S � � Comments � / Total for page� WetlandRaiingFonn—wutemWashinglon 1] Augusl2004 WcllandRalingFortn—weStemW'ashingtnn ta Au�;usi20o4 version: I'pAnled with new WDF\4'delinitions Ocl 2008 �'ersion? Updaled with new�N'DF�1'detinilions Oct :008 � f 'J.'ciland n�mc or numM1er WGllpnd name or number_ H 23 Near or aQiacen[to other nrioriry hebitats listed bv WDFW(see new and comple�e fl 2.Uurs the wedand unit have the opportunity to provide 6abitat for many apeclen? descrlprions ojIVDFWprlority habitars,and 1he counrier ln whlrh they can be jound,in H 2.l Buffers (sea 80) Flyur�_ rhePKSreport hmr.//rvdfro.wa.enr/hah/phslisthMr) N• Whic6 of the followinQ priority 6abiutt ue within 330ft(100m)oCthe wetland unit7 NOTE:nc� Choase rhe descriprion rhar herr represents condition ojhuJfer oJweJlun�l unit The highetf rcoring conneetlon,r do nof huve fo be relarively undiaturbed. rrircrion rhar�q�plies ro the werinnd ir to tx uxed In�he ruting.See tezr jor deflnJtlon oj _Aapeo Stands:Pure or mixed stands of upen grwter than 0.4 ha(1 acrt). "imdi.cturhed" Biodlversity Areaa and Corridon:Areas o(habitat�hat are relatively impoRant to various — 100 m(J30ft)of relatively unJisNrbed vegetated areas,rocky utas,or open water>95% species of native fish and wildlife(/u(!JeJcriptions in WDFW PHS report p.JSI). of c'vcumRrence. No swctures are within the undisturbed part of buPfec (relatively Herbaceouf BAlde:Variable size petchte of grass and forbs on shallow soils over bedrock. undishubed also means no-grazing,no landscaping,no daily human use) Points-5 Old•�rowtt✓Mnturt foreata:(Old-�owth west of Cascade crest)Stands o(at least 2 Vee II — 100 m(330 ft)of relatively undisturbed vegetated areas,rocky azeas,or open water> species,fomting a multi-laycred conopy with occasional amall openings;with at least 20 SO% circwn}brence. Polnta-4 trees/ha(8 trees/acre)>8l cm(32 in)dbh or>200 years oCage. fMeture forests) Stands ' - 50 m(170ft)of relatively undisturbed vegetated areas,rocky areas,or open water>95% with average diameters exceeding 53 em(21 in)dbh;ttown cover may be lese that 1(H)%; circumference. Points-4 crown wver may be less that f00%;decay,decadcnce,numbers of snays,and yuantity of — 100 m(730ft)of relatively undisturbed veQetated aras,rocky areas,or open wattr>25% luge downed rtwterial is generaily less Ihan that found in old-gowth;80-200 years old circumference,. Polnts-J west oCthe Cascade crcst. — 50 m(I70ft)of relatively undisturbed veQetated areas,rocky areas,or open water for> OreYon whlte Oak: Woodlands Standa of pure oak or oak/cooiRr associations where SO%circumference. polnta�3 canopy coverege of the oak component is important((u!!dracriptions in WOFW PHS If buffer doea not meet any of the criterlu above report p.158). — No paved areas(except paved trails)or buildings within 25 m(SOft)ofweda �>_ ° _Rlparlan: The¢rea adjecea[[o aquatic nystems with 1lowing water that contains elemcnts of . circumference. Light to moderate grazing,or lawns are OK. Polnts-2 both aquatic and tertestrial ecosystertu which muNally influence each othcr. — No paved areas or buildings within SOm of wetland for>50%c'ucumferenct. Wtateide Prafries: Herbaceoue,noo-foreated plant conununities thn can either take the Light to moderate gruing,or lawns art OK. Polnts�2 form of a dry preaie or a wet prairie(julf descriprions in WDFW PHS reporr p.l61). — Heavy grazing in buffec Polota�1 In�tream:The combination of p6ysicat,biological,and chemical processes and conditions — Vegetared buffers ue<2m wide(6.6ft)for more than 95%of the circumference(e.g.tilled that intenct to provide f�nctional life history raqu'uemrnts for instrearn fish and wildlife fields,paving,bualt bedrock extend to edge of wetland Polnts�0. resources. — Bufler does not meet any of the criteria above. Poinh�1 'L _Neanhore:Relatively undisturbed nearshore habihts. These include Coastal Nearshore, Aenal hoto s�owin buffers Open Coast Nesrshoro,and Puget Sound Nearshora(�u!l descrlp�ions ojhabimt.r und rhe H 2.2 Corridors and Connections(seep.8/J deflnttion ojrelu�ivefy undfsturbed are in WOFWreporf:pp.167-169 unJglorsury in 11 2.2.1 Is the wedond pert of a relatively undishubed and unbroken vegetated corridor Appendtz A). (either riparian or upland)that is et least I50 ft wide,hu at leatt 30%Covef of shrubs,forest Cnves:A na[uraliy occurtinQ cavity,rccess,void,or syetem of in[erconnec[ed passages under or native undisNrbed pravie,that connects to estuaries,other wetlands or undisturbed the earth in soil�,rock,ice,or other geolosical fortnations and is large enough to contain a uplands that are at least 250 acres in size? (dums in riprvian conidors,htuvily uredgrave! human. rcwds.�wved rards,ure con.ridered hreuks in the corridor). _Cllffs:Grtattt[han 7.6 m(25 ft)high aad octurting below 5000 ft. YES-4 polnts (go to H 1.3) O-go f0 _Taluf:Homogenous areas of rock rubble ranging in average size 0.15-2.0 m(0.5-6.5 R), H 2.2.2 Is the wetland part of a relativcly undisturbed and u ken ve et rtidor composed of basalt,andesite,and/or xdimrntnry rock,including riprap slides and mine (tither riparian or upland)that is at least SOft wide,hes at Iwst 30%cover of ehruba or tailings.May be associated with cliffs. forost,and connects to estuaries,other wetlanda or undisturbed oplands that are at Itast 25 _SnnQ�aod Loga: Trees arc considered snags if they are dead or dy¢�g and exhibit sufticient acras in size7 OR a Lnke•fringe wetland,if it does not have an undisturbed curtidor as in decay characteristics to enable cavity excavation/use hy wildlife.Priority snags have a the question above'7 diuneter at breast heigh[of>51 cm(20 in)in westem Washington and are>2 m(6.5 ft)in YES-2 points (go m H?.3) N� height. Priority loQs ate>30 cm(12 in)in diarneter at the largest end,and>6 m(20 ft) I I 2.2.3 Is the wetlpnd: long. within S mi(Rkm)of a brackish or salt water teNary OR If weAaad hae 3 or more priority habitats-4 polnn � within 3 mi of a large field or pasture(>40 acrcs)OR If wetland has 2 prioriry habitats-3 polnta withi ' rcater than 20 acres? � If wetlwd hu 1 p�io�iry habitat-1 polnf Nn habitats�0 points O � �'ES-I NO�0 Inti Nole:Al!vegerareA x�et(nnds nre ht�d�nition u priori �n�(uded in rhie� 3 /ise h'earbv Nerinnds arc uddressrd in�ucstinn H.11 Total for pagc �'.'ell�nd Raune Fonn-uesiem R':�shington I S August:(H74 Welland Raling Form-w�estem 0.':uhinglon 16 Augast.VVJ �rr;ion: I lpd�ted w ith nc��\\'pF�'dc6niUonS Oa 2009 ��ersion: Updated wilh nrw�\�T1FR'delinitions Oct.2008 � r Y / Wedand name or number , Wetland name or number_ CATEGORIZATION BASED ON SFECIAL CHARACTF,RiSTICS H 2.4 Wetland Landscaoe(choo.ce the one description oj�helundsca/�e uround the wetland that ' hesr firs)(see p.84) '�. There are at least 3 other wetlands within G mile,and�e conneaione be�veen them are �� Please determine 1j�he wetfand meets the anributes described be/ow and circle rlie relatively undisturbed Qight�pazing between wetlands OK,as is Iake shore with some appropriate answers and Calegory. boa�ing,but connections should NOT be bisected by paved roads,fill,fields,or other development. Po��'S �Vedand Type Category The wedand is Lako-fringe on a lake with little dishubonce and there ate 3 other lakaGinge CheckoJjany rriterrn riiat rrpply fn the wetland. Circ(e rhe Caregorv x�hen fhe wetlands within'/,mile pointe�5 Thera are at least 3 other wetlands within%,mile,BUT the connectiona between the a ro rrn�c criferia nre met dismrbed ints-3 SC 1.0 F,etuarine wedands(sce p.86) The wedand is Lake-fringe on a lake with disNrbance and there are 3 o[her lake-fringe �i Does the wedand unit meet the fbllou�ing critena for Estuarine wetlands? wedand wi�h'v�'/,nule Po�u-3 '� —The dominant water regime is tidal, There is at least 1 wedand within'/,mile. Do�n�s-Z —Ve etated,and There ue no wedands within'/,nille. points-0 3 '', � —With a saliniry grcater than 0.5 ppt. H 2.TOTAL Scoro- opportunity for providing habitat 1 I 1'ES s Go to SC 1.1 NO�r Add!he scores rom H2./,H2.1,H2.3,K1.� � � � i SC 1.1 ls the weNand unit within a National W ildlife Refuge,National Park, TOTAL for H 1 from page l4 / I National Estuary Reserve,Natural Area Preserve,State Park or Educational, Cp�•� i ___ Environmental,or Scientific Reserve designated undcr WAC J32-30-I51? Total Score for Habitnt Functfont –add the points for H l,H 2 and record the rcsult on � ' YES–Cete or I NO o ro SC 1.2 �� SC 11 Is the wedand unit at least 1 acn in size and meets at least hvo of the � following thne conditions7 YES–Category I NO-Category II Cat.I ' —The weQand is relatively undisturbed(has no diking,ditching,filling, Cat.II cultivation,grazing,and has less than 10Y.cover of non-native plant species. If the non-native Spartrna spp.are the only species that cover Imore than l0%of the wedand, then the wedand should be given a dual Dual � rating(UII). The area of Spartina would be rated a Category fI while tl�e raNng � relatively undisturbed upper marsh with native species would be a Category I. Do not,however,exclude the arca oCSpartina in �� determining the size threshold of 1 acre. —At least'/.of the landward edge of the wetland has a 100 R buffer oC shrub,forcst,or un-grazed or un-mowed grassland. —The wedand has at least 2 oC the following featurcs:tidal channels, , depressions with oprn water,or contiguous freshwater wetlands. ' Wttl�nd Raling Fofm-wesfern Withinglon 17 Augu112004 �vetland Rating Fortn-westem\Vashington I B .4ugiuc:OOJ version 2 Upd�ted with new WOFW de�nitions Oct 2008 cersion 2 Updaled with new\VPFR'detinitions Oct '_001i �