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08-105633-PCCITY OF � Federal Way December 30, 2008 Mr. Jay Gordon Mr. Harold LaDuke St. Lukes Lutheran Church 515 South 3121h Street Federal Way, WA 98003-4033 CITY HALL FILE 33325 8th Avenue South Mailing Address. PO Box 9718 Federal Way, WA 98063-9718 (253) 835-7000 www.cityoffederalway.com Re: File #08-105633-00-PC, PREAPPLICATION CONFERENCE SUMMARY St. Luke's Community of Christ Wetland, 515 South 3121h Street, Federal Way Dear Mr. Gordon and Mr. LaDuke: Thank you for participating in the December 24, 2008, preapplication conference with the Land Use Division of City of Federal Way's Development Review Committee (DRC). We hope that the information' discussed at that meeting was helpful in understanding the general requirements for your project as submitted. This letter summarizes comments given to you at the meeting. Some sections of the Federal Way City Code (FWCC) and relevant information handouts are enclosed with this letter. Please be advised, this letter does not represent all applicable codes. In preparing your formal application, please refer to the complete FWCC and other relevant codes for all additional requirements that may apply to your project. The key contact for your project is Senior Planner Deb Barker (deb.barker W3ci cffederalway.cona; or 253-835-2642). Any general questions about the preapplication and permitting process can be referred to your key contact. PROJECT DESCRIPTION Applicant proposes to eliminate a portion of a regulated wetland and create compensatory wetland in addition to wetland buffer reduction to accommodate future expansion of the church use. MAJOR ISSUES Outlined below is a summary of the major issues of your project based on the plans and information submitted for preapplication review. These issues can change due to modifications and revisions in the plans. These major issues only represent comments that the DRC consider most significant to your project and do not include the majority of the comments provided. The major issues section is only provided as a means to highlight critical requirements or issues. Please be sure to read the entire department comments made in the next section of this letter. File #08-105633-00-PC Doc I 48066 -'-Ioip%y Gordon Mr. IIarold LaDuke Page 2 December 30, 2008 Planning Division 1. Process IV Hearing Examiner Decision is used to decide the wetland elimination proposal. 2. Peer review of the wetland elimination proposal will be funded at the expense of the applicant. DEPARTMENT COMMENTS Outlined below are the comments made by the Planning representatives present at the preapplication conference. PLANNING DIVISION (Deb Barker, 253-835-2642, deb.barkerl@cityoffederalway.com) Zoning and Use — The subject property is located in a Single -Family Residential (RS) zoning district that permits church uses. 2. Critical Areas —The subject property contains two critical areas as follows: a) Regulated Wetland — A regulated Category III wetland is located in the middle of the multi - parcel property according to the City's wetland inventory prepared in 1999. Category III wetlands must have 50 foot buffers.' Pursuant to FWCC Section 22-1356, the formal application must include a wetland delineation prepared in conformance with FWCC Section 22-1356(b). A copy of the wetland inventory field form is enclosed. b) Wellhead — The subject site is located in a five year and ten year wellhead protection zone, which is also known as a wellhead capture zone. Pursuant to FWCC Section 22-1372(1), adopted on November 16, 2004, projects that are located within wellhead capture zones may only be permitted in a wellhead protection area if the applicant can show that the proposed activity will not cause contamination to enter the aquifer. The formal application must include a completed Hazardous Materials Inventory Statement Critical Aquifer Recharge and Wellhead Protection Areas checklist. A handout on critical aquifer recharge and wellhead protection areas is enclosed. 3. Review Process — a) The formal review process depends on the type of impact to the wetland and/or the wetland buffer. Wetland elimination with compensatory replacement is reviewed under FWCC Section 22-1358(d), is subject to specific criteria and requires Process IV Hearing Examiner Review and approval of the proposal. Impacts to wetland buffers are reviewed under FWCC Section 22-1359. The 50-foot wetland buffer may be averaged using Process III Review, Project Approval per FWCC Section 22-1359(b) if all criteria are met. Buffer reduction may be permitted under Process III per FWCC Section 22-1359(e) if the wetland and site meet certain conditions. Footbridges, benches, or walkways in the buffer could also be reviewed as minor intrusions using Process III per FWCC Section 22-1359(d). However, any other intrusion into wetland buffers requires Process IV Hearing Examiner Review and approval of the proposal. In all cases, the proposal requires review under the State Environmental Policy Act (SEPA). b) Under Process III, the Director of Community Development Services makes a written decision on the application based on criteria listed under the FWCC, including Section 22-395(b). Under Use Process IV, Hearing Examiner Decision, a public hearing is conducted by the Hearing ' Fifty -foot buffers apply to Category Ill wetlands that are over 10,000 square feet in area, while 25-foot buffers apply to Category 111 wetlands that are between 2,500 and 10,000 square feet in area. File rV08-105633-00-PC Doc 1D 48066 Mr. Jay Gordon Mr. Harold LaDuke Page 3 December 30, 2008 Examiner, who decides on the proposal based on criteria listed under the FWCC, including FWCC Section 22-445(c). c) A -SEPA checklist must be submitted and reviewed prior to the City issuing an environmental threshold determination. All property owners within 300 feet of the site are notified of that decision. The notification includes a 14-day comment and 14-day appeal period. SEPA review must be concluded before the site plan approval and any other applicable land use review may be granted. d) A development submittal checklist and master land use application are enclosed along with applicable code sections. Building permits are issued after Process III (or Process IV) approval is granted. 4. Public Notice — Process III and SEPA applications require public notice and must be accompanied by a total of two sets of stamped mailing envelopes, prepared in accordance with the City's requirements 2 (Process IV review requires a third set of mailing envelopes to notify property owners of the public hearing.) Both envelope sets shall be addressed to all owners of real property located within 300 feet of site boundaries. In accordance with the City's procedures, all envelopes must contain the Department of Community Development Services return address (PO Box 9718, Federal Way, WA 98063-9718)- A paper list of addressees is required to be submitted along with the envelopes, in addition to an assessors map with the 300-foot boundary depicted. Mailing information should be current and accurate in order to avoid having to verify the mailing list and re -mail any notices, thereby affecting project review time frames. 5. Application Fees — 20093 fees for the proposal are as follows: Process III $2,392.00 Process IV $3,941.50 SEPA $948.00 Public notification fees are included with the application fees to encompass publication of the Process III notice of application and the SEPA notice of decision. The building permit process is separate from land use review and is subject to fees, procedures; and review timeframes. No building permit can be issued until all environmental decisions and associated comment and appeal periods are completed and any conditions of project approval met, and no building permits can be issued until the review process has concluded. No clearing, grading, or demolition may occur on site in advance of the land use permits, building or grading permit, demolition permits, or other approval process as required by the City. 6. Land Use Review Time Frames, Limitations —Under FWCC procedural guidelines, every effort is made to process land use applications within 120 days from the date of a complete application, and to approve, disapprove, or return the application within this timeline. The review time frame is suspended at any time the City requests additional information from the applicant. Throughout project review, the applicant will be notified in writing of the status of the 120-day time clock. 2 See the City handout titled Mailing Labels. 3 Please note that these fees will be effective January 1, 2009- Fle #08-105633-00-PC Doc JD 48066 Mr. Jay Gordon Mr. Harold LaDuke Page 4 December 30, 2008 In accordance with code requirements, the applicant must begin construction or submit a complete building permit application within one year of the Process III or Process IV decision, or the decision is void. In addition, the applicant must substantially complete construction for the actions approved under the decision within five years after the final decision on the matter. Provisions for certain extensions of these timeframes are set forth in code 4 Wetland Report and Peer Review —The St. Luke's wetland is along narrow wetland situated on the subject site, as well as adjacent properties not controlled by St. Luke's. As discussed at the December 24, 2008 meeting, the November 22, 2008, St. Luke's Lutheran Property Wetland and Stream Analysis Report Functional Assessment and Concept Mitigation prepared by Sewell Wetland Consulting, Inc. and submitted by the applicant identified the wetland associated with the subject site as a Category II wetland. However, in 1999, the City's wetland consultant inventoried the wetland and noted that it met criteria for a Category III. The City will use their current contract wetland consultant to clarify the wetland categorization, i eview the wetland delineation, and to review the overall wetland proposal. In order to initiate this service, you should provide two copies of the wetland report with a cover letter and any other applicable plans or documents. The cover letter (or the report) should include a response from your wetland consultant that details their findings as to why they believe the wetland to be a different category than identified in 1999. The City will forward this information to their wetland consultant for an estimate of review fees; that estimate would be forwarded to your attention for payment in advance of any wetland delineation, wetland categorization, or intrusion request review. As noted at the preapplication meeting, formal applications for intrusions into regulated wetlands or wetland buffer areas must respond to all applicable criteria. A cursory review of the St. Luke's wetland report found that it referenced an incorrect wetland number.' When submitting the wetland report for review by the City's wetland consultant, the report must at a minimum list the correct wetland number, clarify the wetland category, list the size of the wetland, fully document existing conditions of the buffers, include photographs, and fully address the related criteria, including conditions for wetland buffer reduction or criteria for buffer averaging. A table of contents or index is requested. As noted at the meeting, each type of wetland or wetland buffer request has a separate list of decisional criteria or evaluative specifications that require response. Further, as the wetland is situated both on the subject site and on adjacent properties, staff request that the report address any impacts to the balance of the wetland or wetland buffer located off -site. Please note that depending on the extent of the proposed wetland intrusion requests), a formal wildlife report may be required. The general habitat discussion in the wetland report does not meet the intent of a wildlife report. 8. Other Proposals for the Church — This preapplication focused on possible alternatives for the on -site wetland and wetland buffer. No information was provided about any future church expansion. Any expansion will require a new preapplication conference, Use Process IV, and SEPA review. The applicant may opt to have all proposed actions (wetland and expansion) reviewed under a single Process IV and SEPA process, or may choose to have the proposals evaluated separately. 4 FWCC Sections 22-408 & 22-409. "Time Extension" 5 The wetland on the site is #082104-314. A copy of the wetland field form is enclosed for reference. File #08- 1 05633-00-PC Doc ID 48066 Mr. Jay Gordon Mr. Harold LaDuke Page 5 December 30, 2008 CLOSING This letter reflects the information provided at the preapplication conference and is intended to assist you in preparing plans and materials for a formal application. We hope you found the comments useful to your project. We have made every effort to identify major issues to eliminate surprises during the City's review of the formal application. The completion of the preapplication process in the content of this letter does not vest any future project application. Comments in this letter are only valid for one year as per FWCC Section 22-1657. As you know, this is a preliminary review only and does not take the place of the full review that will follow submission of a formal application. Comments provided in this letter are based on preapplication materials submitted. Modifications and revisions to the project as presented for this preapplication may influence and modify information regarding development requirements outlined above. In addition to this preapplication letter, please examine the complete FWCC and other relevant codes carefully. Requirements that are found in the codes that are not addressed in this letter are still required for your project. Any general questions can be directed towards the key project contact, Senior Planner Deb Barker, at 253-835-2642. or deb. barker Cacityoffederalway.cclm. We look forward to working with you. Sincerely, Deb Barker Senior Planner enc: Master Land Use Application Process III and IV Development Requirements Checklist Mailing Label Handout SEPA Checklist FWCC Chapter 22, Article VI — Use Process III FWCC Chapter 22, Article VII — Use Process IV FWCC Chapter 22, Article XIV — Critical Areas Wetland Field Form for Wetland #082104-314 File File #08-105633-00-PC Doc 1D 49066 "-I Church of the Good Shepard T .2 MOP I'd 3rAl�!i93n S 314TH PL C/) > 4*10 IW44W 307 ZIC-l-91 S7.2 31445 73 082[(A,914:3 31455 34 70/ 0 00 3. 0 : a3 11 LIS I w`0 221 di W4 KAI eadzovte RS7.2 R ' 0 - 02IJ-921A 31444 RST2 434 0821im.9039 615 .m 08210f-I !35411 "I Now Hope Chwch 0821VI-9252-- - 315T9 THOMAS 0340-cas A q, 729 mv 11 300025 32 II 1220 4a04 020 12 3 qW 72 L 313T 70 j1244 5 VRST Q 804340 um lq.�W 4; S 314TH ST 191160 UGO R1NI 'ills �iS-7-2 .1 1cm I rr —r= MASTER SITE FILAN Al III;: IOIDI=o' NORTH l*q" Imirifimmis I TM AVOW SO M '' - L �l 1 M1�M a� fi l aw sr�iarr f ! '111 � J fO 1�1'1 l_. 1 - .,� ti c . ❑;c c 'c:a'o is �¢ [�. l IF _ PMmL. L__ __ __ - _____f- __________ _ • -. ._ Y• r Pwv.0 �.rw. u d . wr .rw ours+ ��» a rviq P� acr_.riw .1 inn PIIKW FOR ITS LIFTER 1 PAR Kka LOr rowM&Dr2Y/ — - crwr MEM P.VKW FOR M+--- TOt/L PROPOND PAWNC, FOR Ile - -- TTFI w.TJ&g 80VV11Fl City of Federal Way Wetland Inventory Field Form Wetland Number ' 2-1- -1 - 1 /4 Secgt/Twn/Rng VJ Location (address/cross-streets)-,5 Team Members Date Fi hack. - Base Map #: Windshield Acces / Site Access/ Site Not Accessed FIELD DATA Notable Wildlife Features Snags:#'s z 6" z 12" . z 24" Heights: Inlet N; width flow: Y N / oufle exit=Y--N-i-wi th flow: Y N lone Obsery one Observed urces (Y/N) stream culvert: (diam) sheet i'0w-----fioodplain seeps Human Disturbances: Buffer Conditions: dE iIVa" /'�'v,/�fis OFFICE DATA �'-3 NRCS Soil Unit: Approximate Size: 500 to< 2,500 sq.ft z 2,500 sf, s t/z acre "z acre, s 1 acre WL Rating z 1 acre, s 2 acre z 2 acre, s 5 acre z 5 acre COMMENTS/OBSERVATIONS Pao W � source �- 4 S-t " f (IJ 4*R- v N (cN-Q-1--tJ CITY OF CITY HALL Ak Federal Way 33325 8th Avenue South Mailing Address: PO Box 9718 Federal Way, WA 98063-9718 (253) 835-7000 www.cityoffederalway.com December 11, 2008 P cC RE: FILE #08-105633-00-PC; PREAPPLICATION MEETING NOTICE Community of Christ - St. Lukes Wetland Preapplication Gentlemen: The above -referenced proposal has been assigned to me as project planner. At this time, the application has been routed to the members of the Development Review Committee. A meeting with the project applicant and Committee has been scheduled as follows: Thursday, December 18, 2008, 9:00 a.m. Hylebos Conference Room City Hall, 2"d Floor 33325 8`h Avenue South Federal Way, WA 98003 We look forward to meeting with you. Let me know if you will have more than five people attending the preapplication meeting so we can make arrangements for a larger room. This is the only notice sent out, so please coordinate directly with anyone else you would like to attend the meeting. Please contact me at 253-835-2642, or deb.barker@cityoffederalway.com, if you have any questions. Sincerely, Deb Barker Senior Planner Doc. LD 48065 CITY OF FEDERAL WAY DEPARTMENT OF COMMUNITY DEVELOPMENT SERVICES DEVELOPMENT REVIEW COMMITTEE TRANSMITTAL DATE: December 1, 2008 TO: Will Appleton, Development Services Manager (x2) Scott Sproul, Assistant Building Official Brian Asbury, Lakehaven Utility District Chris Ingham, South King County Fire & Rescue FROM: Deb Barker FOR DRC MTG. ON: December 11, 2008 - Internal December 18, 2008 (9:00am) - with applicant FILE NUMBER(s): 08-105633-00-PC RELATED FILE NOS.: None PROJECT NAME: ST LUKE'S COMMUNITY OF CHRIST WETLANDS PROJECT ADDRESS: 515 S 312TH ST ZONING DISTRICT: RS 7.2 PROJECT DESCRIPTION: Proposal to modify wetland buffers. LAND USE PERMITS: PROJECT CONTACT: ST LUKES LUTHERAN CHURCH 515 S 312TH ST MATERIALS SUBMITTED: Master Land Use Application Sensitive Area Request for Modification Letter Wetland and Stream Analysis Report Conceptual Mitigation Plan Existing Site Plan November 19, 2008 City of Federal Way Department of Community Development Services 33325 8"' Ave South Federal Way, WA 98003 Attn: Planning Department sriartilef ffie f;yhL Re: Sensitive Area Request for Modification Community of Christ - St. Luke's 515 South 312th Street Federal Way, WA 98003 Background Office: 253.941.3000 Fax: 253.941.8994 Community of Christ — St. Luke's is a vibrant part of Federal Way. Our church provides much needed and highly regarded services such as daycare, preschool, kindergarten, space for community meetings, musical and theatrical performances, and social services (on -site counseling and financial assistance to needy families in Federal Way). We support the spiritual needs of many in the Federal Way community through a myriad of activities and programs for all ages. We presently host the Federal Way Symphony and Chorale. St. Luke's has made it part of our mission to open our doors to the community. Since St. Luke's is growing in church attendance and in demand for community related functions, we have found a need to expand our facilities. In good faith, we purchased existing undeveloped property adjacent to our current church building to provide space for building expansion, play areas, storm water detention ponds, parking, and access drives. The Problem We have become acutely aware of the impact of an existing wetland that runs through the parcels we own. Based on the current sensitive area ordinance, with its 100' buffer from the wetland, much of the property we last purchased to tie everything together is unusable. We would respectfully request a modification to the critical area requirements to allow the 100' buffer to be reduced to 50' and relocate a small portion of existing wetland to the southern property boundary, based on the attached critical area report from Sewall Wetland Consulting, Inc. It is our intent that our plan will not adversely impact or modify any abutting property's current condition. Since there is not enough area in the southern parcel to accommodate a buffer averaging concept, we would propose to mitigate the buffer reduction by restoring/enhancing the currently highly degraded buffer to a functional buffer, by removing non-native invasive species and installing native tree and shrub plantings. A monitoring program will be put into place to ensure uuctet.�gft� mitigation area. iC[�C1�� NOV 21 �oo� church@stlukesfedway.org www.stlukesfedway.org Lutheran Church Missouri Synod OF FEDERAL WAY CITY CDS Mianru) die Light 515 South 312th Street Federal Way, WA 98003 Office: 253.941.3000 Fax: 253.941.8994 church@stlukesfedway.org www.stlukesfedway.org Lutheran Church Missouri Synod Also, we would request that the wetlands at the extreme north end (on parcel 0821049038) be relocated to parcel 0821049127 on the south. In doing so, we would increase the wetland on the south parcel. This would allow the church to provide parking close to the main building and therefore minimize parking overflow onto the street. If the present wetland edge and 100' buffer is required to remain, the closest parking the church could add would be 90' from the building —a long way for a family to walk from the parking lot to the building. It would also substantially decrease the useable land for what we consider to be beneficial purposes to the entire community. Achieving our Objectives The church is about to embark on an exciting building expansion project. The first phase will add classrooms on the northwest corner of the present site. We are extremely close to starting the review process with the City for this phase. In the future, we plan to remove and replace Malkow Hall, our aging gymnasium building, rather than spending money on upgrades and maintenance for a building that no longer serves its purpose. The replacement building will be a multipurpose family life center that will meet the needs of the church and community much more effectively. Because the critical area regulations are undergoing changes that could impact what the church can do in the future phases of this expansion program, we are attempting to resolve the wetland buffer issue at this time and get vested under the current regulations, even though it is not directly related to the first phase of the project. We need to think toward the future. Thanks for this Partnership! At Community of Christ - St. Luke's, we understand that moving ahead to better serve our worshippers and the city is impossible without the cooperation and support of City of Federal Way. Thank you for your partnership in our past endeavors. , Sincerely, Lind Simonsen Simonsen President, Executive Leadership Team Community of Christ - St. Luke's See attachment . ER LAND USE APPLICATION �J,,kkMXNT OF COIrtMIt]NI'['r DEVELOPMENT SEliVICFS 33325 8'� Avenue South CITY OF r�r- �'� PO Box 9718 r�n� � Federal Wa � ��}yj Federal Way WA 98063-9718 253-835-2607; Fax 253-835-2609 CITY' �. , -,.: DER L WA'� www.cityoffederalwaLv.com CDS APPLICATION NO(S)y D—/ D S 69,3 J 1 lJ Date (b o V 2- )-)- 4 coo Project Name L, p'i>11�1VJ`�'`e caf e9121S� �"� 7 1-Q6►:�'",� i--4 1 Property Address/Location .5 15 Sd201-d 1 A- ST tWel Alma, ,44. )' 9 Parcel Numbers) 0 ? Z /0 , �0 33 Project Description FIA-i- Wei 0 &-,,1 b.9 %lo y q.�3¢, - 4OW PLEASE PRINT � -P4 TJ 4 #T e- 710 Type of Permit Required Annexation Binding Site Plan Boundary Line Adjustment Comp Plan/Rezone Land Surface Modification rt Line Elimination eapplication Conference Process I (Director=s Approval) Process II (Site Plan Review) Process III (Project Approval) Process IV (Hearing Examiner's Decision) Process V (Quasi -Judicial Rezone) Process VI SEPA w/Project SEPA Only Shoreline: Variance/Conditional Use Short Subdivision Subdivision Variance: Commercial/Residential e_0 "6= Sri- 1 Pi'1,L Fu 0cri o I A'(« V- Al E r l G:; 'n 0 S Required Information Zoning Designation Comprehensive Plan Designation Value of Existing Improvements Value of Proposed Improvements International Building Code (IBC): Occupancy Type Construction Type Applicant Name: 6a ►ip) m ut A.� l7 y ear c)4Au4 y- .5-r Lv tit° Address: a / So uri,� ,J+ L SC' City/State: 4- p4t �. (�,714 +�, W A Zip: 1-8 co'A Phone_:- - - q q1 3 ,a a Fax: Z 5 `t 419 I iP q 41' Email:"1 W A l e Agent (if dl'fferent than Applicant) �a,l tr' p ,rCi 0 A Name: •1 Address: City/State: r� Zip: Phone: % 71Z, Fax: Email: Signature: ' N/A Owner Name: C-' ►ti ch'1 v kl (TY a4� L_U Kr r Address: .5/S Sn 1 .312� 1W City/State: i VeO2,+, wA-() L—,, Zip- 019 a o Phone: 3 q 01 3 eP '00 Fax: 1?1791.,/ Email: t s F t. h. ;M, 5TL es. I;; e Q, W�!�`. Signature: ^ Bulletin #003 —August 18, 2004 Page 1 of 1 k:\Handouts\Master Land Sewall Wetland Consulting, Inc. ST. LUKES LUTHERAN PROPERTY WET LAN D AND STREAM ANALYSIS REPORT FUNCTIONALASSESSMENT AND CONCEPT M ITIGA FION CITY OF FEDERAL WAY, WASB INGTON Prepared For: Lind Simonsen St. Luke's Lutheran 515 South 312'h Street Federal Way, WA 98003 RECEIVED November 22, 2008 NOV 21 2008 Job #A8-226 CITY OF FEDERAL WAy CDS Sewall Wetland Consulting, Inc. Phone: 253-859-0515 1103 W. Meeker Street Fax: 253-852-4732 Kent, WA 98032 t. LU KE' S LUTHE RAN PROPERTY WETLAND ANALYSIS REPORT CITY OF FEDERAL WAY, WASHINGTON 1.0 INTRODUCTION 1.1 Location This report describes the jurisdictional wetlands located at the St. Luke's Lutheran property. The 18 acre property is located at 515 S 312t" Street (parcel 0821049038, 221, 157, 153, 127, 8603400040, 045, 050, 035) in the City of Federal Way, Washington. MaDOuest Kcinity Ma �t� t a,nt Rd �, S Dash Point Rdkn s q < Buenna f° _ S 304th St i t g S 305th PI 5 Wall Pi Seeel tab S 3D9th PI S 310th St Sw 312th St S 312td 5 ederaI Way Site Lake S 315th St N 3 S 315th St S 316th St ry S 316th Ln S 316th PI w S 31M St r f S 319th PI "A S„ 6 , S 320th St g S 320th rS'm3 D At S 324th PI w Fndgr.+f Wa} 4L v 3 wim)ed oot Way r� 1: We' P 9 4f S [^th NP '$ �'r S S327th St Ee/,", P&ri Golf Coup .y g - `7 +g S 329th PI F s 5 --m PI S x S 330u) St Re: St. Luke's Property SWC Job 4A8-226 November 22, 2008 Page 2 of 10 1.2 Existing Conditions The site is currently developed with a several structures including a church, daycare and meeting facility buildings. The property is bordered to the north by S 312`h Street, to the west by 4`h Avenue South, to the south by single family residence and to the east generally by 6Lh Avenue South and 7 h Avenue South. 2.0 METHODOLOGY On October 21, 2008, October 22, 2008 and again on October 27, 2008, Sewall Wetland Consulting Inc. inspected the site for jurisdictional wetlands and streams using methodology described in the Washington State Wetlands Identification Manual (WADOE, March 1997). This is the methodology currently recognized by the City of Federal Way and the State of Washington for wetland determinations and delineations. - The Washington State Wetlands Identification Manual as well as the 1987 Federal Manual requires the use of the three -parameter approach in identifying and delineating Lwetlands. 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 ! f conditions are indicated in the field by soils with low chromas (2 or less), as determined L_ Re: St. Luke's Property SWC Job #A8-226 November 22, 2008 Page 3 of 10 by using the Munsell Soil Color Charts; iron oxide 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 parameters will be present in wetland areas. 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 Soil Survey, City of Federal Way Zoning and Wetland Atlas, Department of Natural Resources FPARS, and the National Wetland Inventory. 3.1.1 King County Soil Survey According to the King County Soil Survey Area of Interest (AOI), the site contains Alderwood gravelly sandy loam (AgB); which typically occurs on slopes of 0 to 6 percent, and Arent Alderwood Material (AmC); which typically occurs on slopes of 0 to 6 percent. Alderwood gravelly sandy loam (AgC) are moderately well drained soils formed under conifers in glacial deposits. Arents Alderwood material consists of Alderwood soils that have been so disturbed through urbanization that they no longer can be classified with the Alderwood series. According to the publication, "Hydric Soils of the United States" Alderwood gravelly sandy loam soils and Arents Alder -wood material are not considered to be hydric or wetland soils. Re: St. Luke's Property SWC Job #A8-226 November 22, 2008 Page 4 of 10 3.1.2 City of Federal Way Zoning and Wetland Atlas According to the City of Federal Way Wetland Atlas, there is a wetland located along the western property boundary. This wetland is identified as Wetland 19-21-4-139. Wetland 19-21-4-139 is documented as being a Category II wetland. City o, f Federal Way Zoning and Wetland Atlas S 312TH ST r RS7.2 �� SITE !=.RS7 ]tile" 2 �.. . RS7.2 RS7.2 M a—S314TH _ ST S3NTH sr n T 5714TH.PL r � 4N .. RS7.2 - 3.1.3 Department of Natural Resources FPARS According to the Department of Natural Resources Forest Practice Application Review System (FPARS), there are no water courses located on or within 300-feet of the site. Department of Natural Resources FPARS T I SMn»o 10 v 3.1.4 National Wetland Inventory According to the National Wetland Inventory, there are no wetlands located on or within 300-feet of the site. L LI L L_ Re: St. Luke's Property SWC Job #A8-226 November 22, 2008 Page 5 of 10 3.2 Topography The site is generally flat with a downward slope to the east. The eastern boundary and southeast property corner is the lowest point on the property. The eastern boundary generally slopes downward to the southeast with a linear depression. Google terrain neap_ T s Y, Easter r W Lake U Q s,N 312m Si SITE 5 317.tn St v IN Ln 5 CO W i• N < S 316th PI to `i 3170, PI s' J � Q � S 320th 3t,:.z-:• , .. . Y. S 31391 Si N i � S 314th St 3 D Q~ h 1' WYi Mirror Lake Park S 3161h St e Lo S 315th 51 m 3 n S 317M S1 T ry ,531Btn� S5l v S 320th St L Re: St. Luke's Property SWC Job #A8-226 November 22, 2008 Page 6 of 10 3.3 Uplands The uplands are generally comprised of historically disturbed maintained landscaped area. The western property boundary has a historic fill slope, sloping downward to the east to a wetland. The fill slope and historically disturbed portions of the upland are comprised of Black Hawthorn (Crataegus douglasii), Scot's broom (Cytisus scopairus), Himalayan Blackberry (Rubus armeniacus), Orchard Grass (Dactylis glomerata), thistle (Cirsium arvense), trailing blackberry (Rubus ursinus), and bent grass (Agrostis sp.). Soil pits excavated within the uplands revealed a 16-inch layer of gravelly sandy loam with a color of 1 OYR 3/2 with no redoximorphic features. Soils within the uplands were dry during the time of our site investigation. 3.5 Wetland A Wetland A was flagged pink "Wetland Delineation" flagging labeled A-1 through A-15 and AA-1 through AA-15. Wetland A is located near along the eastern property boundary and extends off -site to the east. Wetland A is a depressional wetland with forested and shrub vegetative communities. Vegetation within Wetland A included Black Cottonwood (Populus balsamifera), red alder (Alnus rubra), Pacific willow (Salix lasiandra), red osier dogwood (Cornus sericea), Salmonberry (Rubus spectabilis), hardhack (Spiraea douglasii), reed canary grass (Phalaris arundinacea), and fringecup (Tellima grandiara). Soil pits excavated within the wetland revealed a 16-inch layer of silt loam with a color of 10YR 2/1. Soils within the wetland were moist within 12-inches of the soils surface during the time of our field investigation. According to the United States Fish and Wildlife Service (USFWS) wetland classification method (Cowardin et al. 1979), Wetland A consists of areas that would be considered PFa 1 C (), and PSS 1 C (palustrine, scrub -shrub, broad-leaved deciduous, seasonally flooded. According to the City of Federal Way Code § 22-1357, Wetland A would be regulated as a Category 2 wetland based on its overall size being larger than 1 acre and having two wetland classes (forested and scrub -shrub). Typically, Category 2 wetlands have a 100- foot buffer measured from the wetland edge. A 10-foot landscape setback line is measured from the buffer edge. 4.0 Proposed Project and Mitigation Measures The proposed project is the additional development of the property for building expansion, play areas, storm water detention ponds, parking, access drives, and more for provided services to the community. In order to provide continuity of design, the project proposes the relocation of a small portion of the northern most boundary of Wetland A and a reduction of the 100-foot buffer to a 50-foot buffer, through process IV (FWCC §22-1359(d)). The current condition of the wetland is degraded by the encroachment of non-native invasive species dominant in the wetland buffer. Currently, non-native L_ L. Re: St. Luke's Property SWC Job #A8-226 November 22, 2008 Page 7 of 10 invasive species within the wetland are not the dominant species; however, if action is not taken within the reasonably foreseeable future, the majority of the wetland will be consumed by Himalayan Blackberry (Rubus armeniacus) as it is already in great abundance within the wetland. Therefore, as mitigation for impacting 2,005sf of wetland near the northern tip of the wetland, the project will create 6,030sf of new wetland contiguous with the existing wetland edge. The wetland creation of 6,030sf of new wetland area meets the required 3:1 mitigation ratio set by the Federal Way City Code §22-1358 (e)(3). See Sheet W-1 for Conceptual Mitigation Plan. Upon acceptance of the conceptual mitigation plan a final mitigation plan will be submitted to the City for review. The final mitigation plan will provide a detailed grading plan of the creation area, planting plan and mitigation monitoring guidelines along with bonding information. See Appendix 8 for mitigation goals and objectives as well as monitoring guidelines and contingency plan information. The planting plan will utilize native plant species and be clumped in random patterns based on appropriate hydrologic requirements for each species. Trees will be planted 9- feet on center and shrubs will be planted 6-feet on center. Species to likely be included within the mitigation area are western red cedar (Thuja plicata), Douglas fir (Pseudotsuga menziesii), Sitka spruce (Picea sitchensis), pacific willow (Salix lasiandra), red osier dogwood (Cornus sericea), salmonberry (Rubus spectabilis), beaked hazelnut (Corylus cornuta), red elderberry (Sambucus racemosa), Indian plum (Oemleria cerasiformis), pacific ninebark (Physocarpus capitatus), Oregon grape (Mahonia aquifolium), red flowering currant (gibes sanguineum), nootka rose (Rosa nutkana) and native grass and emergent mixtures. FWCC §22-1359(d) (1) It will not adversely affect water quality. It is anticipated that the proposed project will provide a net increase in water qualtiy. The basis for improvement in water quality by the new development would be attributed to replacing and constructing new stormwater management facilities, which are better systems than the previously constructed stormwater management pond, provided by the r historically constructed chruch facility. Ultimately reducing turbity loads and non -point source pollution into the critical areas from the surrounding historically manipulated properties. �J In addition, wetland creation is being provide at a 3:1 ratio. The newly created wetland area will provide three times the area than the area impacted. Therefore, increasing the r wetlands overall free board storage and increases in nutrient uptake by additionally installed plant species. The buffer reduction plan will provide non-native invasive species removal as well as trash removal and replace it with a diversified plant structure L(herbaceous, shrubs and trees vs. invasive shrubs) as well as overall species diversity. Resulting in increased variability of nutrient uptake, and increased stability of soils through a diversified root system. Re: St. Luke's Property SWC Job #A8-226 November 22, 2008 Page 8 of 10 (2) It will not adversely affect the existing quality of the wetland's or buffer's wildlife habitat. The proposed project will provide an increase in the overall quality of wetland and wetland buffer habitat by removal of non-native invasive species and the installation of a more diverse wetland and wetland buffer. Wildlife forage opportunity will be directly increased by a broader range of species with the critical area. Additionally, habitat features such as snag(s) and large woody debris will be installed to increase habitat opportunity. By removing the relatively monotypic conditions of the buffer and by adding vegetative structural diversity, habitat opportunity will be increased for urban tolerant species. (3) It will not adversely affect drainage or stormwater retention capabilities. The wetland creation area will slightly increase the amount of flood water attenuation for the site and subsequently the watershed by providing additional wetland area. The creation area will not adversley affect the drainage of the surrounding area and will not directly effect the adjacent properties. (4) It will not lead to unstable earth conditions nor create erosion hazards. The grading for the wetland creation area will be done in correspondance with best management practices (BMPs). As such, all TESC measures will be implemented. The mitigation area grading will be minor and will not require a significant amount of cut; therefore, no unstable earth conditions or erosion hazards are anticipated. The mitigation area will provide temporary stabilization through BMPs for the short term, and will gradually provide (5) It will not be :materially detrimental to any other property in the area of the subject property nor to the city as a whole, including the loss of open space. The proposed project will slightly decrease the amount of area within the sensitive tract. However, the quality of the remaining space will be significantly increased. However, this will not decrease the amount of useable open space to the public, as this area is to be left as a sensitive area tract and not available to the open public either way. Aesthetically, there will be more value to the reduced buffer as native tree and shrub plantings carry a higher esthetic value than a monotypic stand of Himalayan Blackberry (Rubus armeniacus) and Scot's broom (Cytisus scopairus). (6) It will result in no net loss of wetland area, function or value. The project proposes to increase the net size of wetland area by utilizing a 3:1 mitigation ratio for impacts to the wetland, persuant to §22-1358 (e)(3). Therefore, there will be no net loss of wetland area. There will be no decrease in the function and value of the wetland based on the evaluation conducted by using the, "Wetland Functions Re: St. Luke's Property SWC Job #A8-226 November 22, 2008 Page 9 of 10 Characterization Tool for Linear Projects". For more information on the functions and value findings please see Section 5.0 of this report. (7) The project is in the best interest of the public health, safety or welfare. The proposed mitigation plan will not adversely affect public health, safety or the welfare of the community. It is not anticipated that the mitigation plan will create any hazardous conditions. Through the already established benefits of asthetics, water quality, and diversity, the proposed mitigation plan would not be considered negative impacts to the community. (8) The applicant has demonstrated sufficient scientific expertise and supervisory capability to carry out the project. The applicant and the their contracted consultants and engineers (AHBL, Sewall Wetland Consulting, Inc.) are professionals within the industry and have designed and implemented mitigation plans similar to the proposal with successful outcomes for many years. (9) The applicant is committed to monitoring the project and to making corrections if the project fails to meet projected goals. Specific details of mitigation sequencing, realistic expectations for probability of success, cost of maintenance and contigency plan costs have been provided to the client by Sewall Wetland Consulting, Inc. and are understood. A monitoring contract will be established at the time of bonding for the construction phase of the mitigaiton area. 5.0 Functions and Analysis Assessment Wetland A and its associated buffer were evaluated pursuant to the methodologies by Null, W. S., G. Skinner, and W. Leonard, 2000 Wetland Functions Characterization Tool for Linear Projects, Washington State Department of Transportation, Environmental Affairs Office, Olympia, WA. Sewall Wetland Consulting, Inc, has performed a before and after analysis of the existing conditions and subsequently future site conditions for the wetland mitigation area to determine whether there would be any detrimental impacts to the wetland or its associated buffer. See Appendices for attached data sheets of WADOT Wetland Functions Tool. Analysis of the Wetland Functions Tool has indicated a slight net increase in 11 out of 64 possible functions of the wetland and buffer from the mitigation proposal. There is a slight temporal loss of function for 2 of the 64 functions (one of which is not likely to provide the particular function in question). See Appendix 1 for a side by side comparison of the functions provided by the existing conditions and the anticipated functions after the proposed project with incorporated mitigation plan. In addition, see Appendices 2, 3 and 4 for data forms and descriptions of functions and values for the existing conditions. See Appendices 5, 6, and 7 for Functions and Analysis Forms for conditions with the implemented mitigation plan. Re: St. Luke's Property SWC Job #A8-226 November 22, 2008 Page 10 of 10 If you have any questions or need any additional information please contact our office at 253.859.0515 or by e-mail at awil.]@scwallwc.com sewallwc.com . Sincerely, Sewall Wetland Consulting, Inc. • 4e,_ �v,� J. Aaron Will Wetland Scientist File: aw/A8-226 St. Lukes Lutheran.doc ROUTINE WETLAND DETERMINATION DATA FORM (Washington State Wetlands Identification & Delineation Manual, 1997) SEWALL WETLAND CONSULTING, INC. 1103 West Meeker Street Kent, Washington 98032 (293) 899-0919 Protect Name/#: St. Lukes Date: 10-21-08 Investigator: Aaron Will Data Point i Jurisdiction: City of Federal Way State: WA AURical Analysis: -No Problem Area; VEGETATION Dominant plant species Stratum Indicator Coverage % qL bv, T J4. 3. 1 Lk 5. rr; �. 1" 6. 7. 8. 9. 10. % of species OBL, FACW and/or FAC: Hydrophytic vegetation criteria met: Ye Mar inal Coi=ents: SOILS Mapped Soil Series: Alderwood On Hydric Soils List?: Yes IQ ,Drainage Class: moderately well drained Depth(0 in) Matrix color Redox concentration color Texture tLin. 10 Q.- in. �f in. Organic soil_, Histic epipedon_, Hydrogen sulfide_, gleyed , redox concentrationsredox depletionspore linings_, iron concretions_ manganese concretions_, organic matter in surface horizon (sandy soil)_, organic streaking (sandy soils)_, organic pan (sandy soil) Hydric soil criteria met: Yes Basis: Comments: HYDROLOGY Recorded data. inundation , saturation watermarks , drift lines , sediment deposits , drainage patterns Wetland hydrology criteria met: Yes Basis: Comments: SUMMARY OF CRITERIA Soil Temp. at 19.7" depth: Growing Season?: Y/ Hydrophytic vegetation: Y/ Hydric soils: Yam/ 7Netland hydrology: Y/ Data point meets the criteria of a jurisdictional wetland?: Yes r--- L ROUTINE WETLAND DETERMINATION DATA FORM (Washington State Wetlands Identification & Delineation Manual, 1997) SEWALL WETLAND CONSULTING, INC. 1103 West Meeker Street Kent, Washington 98032 (293) 899-0919 Pro•ect Namel#: 5t. Lukes Date: 10-21-08 Investigator: Aaron Will Data Fount Jurisdiction: CiV of Federal Way State. WA A ical Analysis: Problem Area: o VEGETATION Dominant plant species Stratum Indicator Coverage % gutays 3. 4. 5. 6. 7, 8. 9. 10. % of species OBL, FACW and/or FAC: l0 0 ;-:_Hydrophytic vegetation criteria met: Xes) No Mar final Comments: SOILS Mapped Soil Series: Alderwood On Hydric Soils List?: Yes No Drainage Class: _moderately well drained_ Depth(0 in) Matrix color Redox concentration color Texture l ( LLin. E r �:�,. r ++ l J N. r 'C f w u 4� 1-. v a) h,v l in. in. Organic soil, Histic epipedon_, Hydrogen sulfidegleyed , redox concentrationsredox depletionspore liningsiron concretions__manganese concretions_, organic matter in surface horizon (sandy soil)_, organic streaking (sandy soils)_, organic pan (sandy soil) Hydric soil criteria met: ER No Basis: Comments: HYDROLOGY Recorded data_, inundation saturation watermarks X. drift lines______., sediment deposits , drainage patterns Wetland hydrology criteria met: es . o Basis: Comments: SUMMARY OF CRITERIA Soil Temp. at 19.7" depth: Growing Seas tt?: Y/ Hydrophytic vegetation: Hydric soils:MIN Wetland hydrologyI N Data point meets the criteria of a jurisdictional wetland?: e Nv L— APPEDIX 1 Side by Side comparison of likely or not likely functions provided by existing conditions or conditions after the mitigation project has been implemented. APPENDIX 1 Before I After Flood Floow Alteration 1Y Y 2Y Y 3Y Y 4 N/A N/A 5Y IY 6 N/A N/A 7Y IY Sediment Removal 1N N 2N N 3Y Y 4N N 5Y IY 6N IN Nutrient and Toxicant Removal Erosion Control and Shoreline Stabilization N/A Production of Organic Matter and its E 1Y Y 2Y Y 3N Y 4N N 5Y Y 6N IN General Habitat Suitabilit I Y 2N N 3N N 4N Y 5Y Y 6N IN 7N IN SLIGHT INCREASE SLIGHT TEMPORAL DECREASE Before After Habitat for Aquatic invertebrates I Y 2Y Y 3N N 4Y Y 5Y Y 6Y IY Habitat for Amphibians 1Y Y 2Y Y 3N N 4Y Y 5N N 6Y Y Habitat for Wetland -Associated Mammals N/A Habitat for Wetland -Associated Bird 1N N 2N N 3Y Y 4Y Y 5N N 6Y Y 7N Y 8N N General Fish Habitat N/A Native Plant Richness 1N Y 2Y Y 3Y Y 4Y ly Educational or Scientific Value 1N N 2N Y ly 3Y Uniqueness and Heritage 1N N 2N N 3N N 4N N 5N N 6N N APPENDIX 2 Key to HGM Wetland Classification for Existing Conditions Key to HGM Wetland Classification: Washington Wetland Type Wetland Name: f el'. Date: 11 - ✓ 1- O `6 1) Water levels in wetland usually controlled by tides No - go t-o-Z Yes - Tidal Fringe 2) To o_grapIL is flat and precipitation is only source (>90%) of water to the wetland No - ga to Yes - Flat 3) Wetland is contiguous with > 8 ha (19.8 ac) open water, and water is deeper than 2 m (6.6 ft) over 30% of open water area o - go water. Yes - Lacustrine Fringe 19 4) Open water is <8 ha (19.8 ac) and >2 m (6.6 ft) deep, but wetland is a fringe narrower than lh the radius of water �Yes - Lacustrine Fringe 5) Water flow in wetland is unidirectional on a slope, water is not impounded in the wetland = N ,gn � Yes - Slope 6) Wetland is located in a topographic valley with stream or river in the middle C'' to - >so. �0- Yes - go to 7 ' .w.._ ....__... 7) Have data showing area flooded more than once every 2 yrs.; or indicators of flooding are present: ❑ Scour marks common ❑ Recent sediment deposition ❑ Vegetation that is damaged or bent in one direction ❑ Soils have alternating deposits ❑ Vegetation along bank edge has flood marks No for all iad cat ors ga tv 9 . _ ? Yes for any indicator - go to 8 8) Floodwaters reta;aed No - Riverine flow through Yes - Riverine Impounding ❑ Depression in floodphun ❑ Constricted outlet ❑ Permanent water 9) Has surface water outflow- De sessional Outflow Has no surface outflow mssiona ose. Ratiz?wle f r Choies (basal on Lea awdable it &=tion - uhit can be sari orpmriwa known h fm ution ab z the uedan l sytw): L APPENDIX 3 Wetland Functions Field Data Form for Existing Conditions Wetland Functions Field Data Form — WSDOT's BPJ Characterization Project: Date: I l— 1- o Wetland Name:\�,,, - 1 I � c� %,r �� x (' ��„, �) =�. c�'�S Biologist: ��s o � A. Flood Flow Alteration (Storage and Desynchronization) 1. Wetland occurs in the upper portion of its watershed. 2. Wetland is in a relatively flat area and is capable of retaining higher volumes of water during storm events, than under normal rainfall conditions. 3. Wetland is a closed (depressional) system. Z 4. If flowthrough, wetland has constricted outlet with signs of L fluctuating water levels, algal mats, and/or lodged debris. 5. Wetland has dense woody vegetation. 5 6. Wetland receives floodwater from an adjacent water course. 6 7. Floodwaters come as sheet flow rather than channel flow. 7 B. Sediment Removal 1. Sources of excess sediment (from tillage or construction) are present upgradient of the wetland. 2. Slow -moving water and/or a deepwater habitat are present in the wetland. 3. Dense herbaceous vegetation is present. 4. Interspersion of vegetation and water is high in wetland. 5. Ponding of water occurs in the wetland. 6. Sediment deposits are present in wetland. 20 Likely or not likely to provide. (State your rationale.) VeJ A)D ve 5 Likely or not likely to provide. (State your rationale.) zl J3f) ?Y'S * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). C. Nutrient and Toxicant Removal 1. Sources of excess nutrients (fertilizers) and toxicants (pesticides and heavy metals) are present upgradient of j the wetland. 2. Wetland is inundated or has indicators that flooding is a L seasonal event during the growing season. 3. Wetland provides long duration for water detention. 3 4. Wetland has at least 30% areal cover of live dense herbaceous vegetation. 5. Fine-grained mineral or organic soils are present in the wetland. D. Erosion Control and Shoreline Stabilization If associated with water course or shoreline. 1. Wetland has dense, energy absorbing vegetation bordering the water course and no evidence of erosion. 2. A herbaceous layer is part of this dense vegetation. 3. Trees and shrubs able to withstand erosive flood events are also part of this dense vegetation. E. Production of Organic Matter and its Export 1. Wetland has at least 30% areal cover of dense herbaceous vegetation. I 2. Woody plants in wetland are mostly deciduous. Z 3. High degree of plant community structure, vegetation -2 density, and species richness present. J 4. Interspersion of vegetation and water is high in wetland. 9 5. Wetland is inundated or has indicators that flooding is a ,.. seasonal event during the growing season. 6. Wetland has outlet from which organic matter is flushed. 21 Likely or not likely to provide. (State your rationale.) U L) s'- 5j J .1_. , a. " Likely or not likely to provide. (State your rationale.) Likely or not likely to provide. (State your rationale.) A) 1 ,5 * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). 's' 22 F. General Habitat Suitability 1. Wetland is not fragmented by development. 2. Upland surrounding wetland is undeveloped. 3. Wetland has connectivity with other habitat types. 4. Diversity of plant species is high. 5. Wetland has more than one Cowardin Class, i.e., (PFO, PSS, PEM, PAB, POW, etc.) 6. Has high degree of Cowardin Class interspersion. 7. Evidence of wildlife use, e.g., tracks, scat, gnawed stumps, etc., is present G. Habitat for Aquatic Invertebrates 1. Wetland must have permanent or evidence of seasonal inundation for this function to be provided. 2. Various water depths present in wetland 3. Aquatic bed vegetation present. 4. Emergent vegetation present within ponded area. 5. Cover (i.e., woody debris, rocks, and leaf litter) present within in the standing water area. 6. A stream or another wetland within 2 km (1.2 mi) of wetland. H. Habitat for Amphibians 1. Wetland contains areas of seasonal and/or permanent standing water in most years. (Must be present for this function to be provided) 2. Thin -stemmed emergent and/or floating aquatic vegetation present within areas of seasonal and/or perennial standing water. 3. Wetland buffer < 40% developed, i.e., by pavement 3 and/or buildings. Likely or not likely to provide. (State your rationale.) jo 7 �1 �o ("') ��?5 7 1U o - v�a,nca o .rj et� Likely or not likely to provide. (State your rationale.) S e wS ov\-c'-x Ye S Likely or not likely to provide. (State your rationale.) * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). 4. Woody debris present within wetland. 5. Lands within 1 km (0.6 mi) of wetland are greater than or equal to 40% undeveloped (e.g., green belts, forest, grassland, agricultural). 6. Other wetlands and/or an intermittent or perennial stream within 1 km (0.6 mi) of wetland. I. Habitat for Wetland -Associated Mammals 1. Permanent water present within the wetland. (Must be present for this function to be provided.) 2. Presence of emergent vegetation in areas of permanent water. 3. Areas containing dense shrubs and/or trees are present within wetland or its buffer. 4. Interspersion between different strata of vegetation. 5. Interspersion between permanent open water (without vegetation) and permanent water with vegetation. 6. Presence of banks suitable for denning. 7. Evidence of wildlife use, e.g., dens, tracks, scat, gnawed stumps, etc., is present. J. Habitat for Wetland -Associated Birds 1. Wetland has 30 to 50% shallow open water and/or aquatic bed classes present within the wetland. 2. Emergent vegetation class present within the wetland. 3. Forested and scrub -shrub classes present within the wetland or its buffer. 4. Snags present in wetland or its buffer.. 5. Sand bars and/or mud flats present within the wetland. 1i 23 Likely or not likely to provide. (State your rationale.) Likely or not likely to provide. (State your rationale.) ✓J �%Sc Likely or not likely to provide. (State your rationale.) L) O Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). 6. Wetland contains invertebrates, amphibians, and/or fish. 6 7, Buffer contains relatively undisturbed grassland shrub and/or forest habitats. / 8. Lands within 1 km (0.6 mi) of the wetland are greater than or equal to 40% undeveloped (e.g., green belts, forest, grassland, agricultural). K. General Fish Habitat (Must be associated with a fish -bearing water.) 1. Wetland has a perennial or intermittent surface -water connection to a fish -bearing water body 2. Wetland has sufficient size and depth of open water so as not to freeze completely during winter. 3. Observation of fish. 4. Herbaceous and/or woody vegetation is present in wetland and/or buffer to provide cover, shade, and/or detrital matter. 5. Spawning areas are present (aquatic vegetation and/or gravel beds). L. Native Plant Richness 1. Dominant and codominant plants are native. 1 2. Wetland contains two or more Cowardin Classes. Z 3. Wetland has three or more strata of vegetation. j 4. Wetland has mature trees. M. Educational or Scientific Value 1. Site has documented scientific or educational use. 2. Wetland is in public ownership. Z 3. Parking at site is suitable for a school bus. 3 24 I �S �ikely or not likely to provide. / (State your rationale.) /i7 Likely or not likely to provide. (State your rationale.) I i i Likely or not likely to provide. (State your rationale.) /v0 �'..a r,��nf•'. �-�...�A;K �, � ,,tea 1 � J ,M 1_a j J Fv Likely or not likely to provide. (State your rationale.) !� o �j * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). 25 N. Uniqueness and Heritage 1. Wetland contains documented occurrence of a state— f or federally listed threatened or endangered species. 2. Wetland contains documented critical habitat, high quality ecosystems, or priority species respectively L designated by the U.S. Fish and Wildlife Service, the WDNR's Natural Heritage Program, or WDFW's Priority Habitats and Species Program. 3. Wetland is part of a National Natural Landmark designated by the National Park Service or a Natural Heritage Site designated by WDNR. 4. Wetland has biological, geological, or other features c,/ that are determined rare by the local jurisdiction. 5. Wetland has been determined significant by the local jurisdiction because it provides functions scarce for the area. 6. Wetland is part of ... 6 ➢ an estuary, ➢ a bog, ➢ a mature forest. �J o Likely or not likely to provide. (State your rationale.) Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). APPENDIX 4 Wetland Functions and Value Form for Existing Conditions Wetland Functions & Values Form Wetland I.D. �,e,!-!z, j A Project: , Cowardin Class: P SEcology Category: Local Rating: Occurrence Function/Value Y N Rationale Assessed by: A A�r C �,✓ / / Wetland size: Principal Function(s) Date: P-! i -o 6 Comments 26 Flood Flow Alteration ✓ �7 Sediment Removal Z Nutrient & Toxicant Removal ✓ `�I 5 Erosion Control & Shoreline X Stabilization iV/A- Production of Organic Matter and its Export 1 6 General Habitat Suitability . d i .? Habitat for Aquatic Invertebrates Habitat for Amphibians Habitat for Wetland -Associated Mammals Habitat for Wetland -Associated 5'/ Birds General Fish Habitat Native Plant Richness =I. -s Educational or Scientific Value ; Uniqueness and Heritage D 6 APPENDIX 5 Key to HGM Wetland Classification for Conditions With Mitigation 19 Key to HGM Wetland Classification: Washington Wetland Type Wetland Name: P� l h v . /� Y( Date: 1) Water levels in wetland usually controlled by tides CaG::� go to 2 Yes - Tidal Fringe 2) ��graphyis flat and precipitation is only source (>901I6) of water to the wetland go to 3 Yes - Flat 3) Wetland is contiguous with > 8 ha (19.8 ac) open water, and water is deeper than 2 m (6.6 ft) over 30% of open water area _low go to 4 Yes - Lacustrine Fringe 4) Open water is <8 ha (19.8 ac) and >2 m (6.6 ft) deep, but wetland is a fringe narrower than'h the radius of open water go to 5 Yes - Lacustrine Fringe 5) Water flow in wetland is unidirectional on a slope, water is not impounded in the wetland .� go to 6 Yes - SIope 6) Wetland is located in a topographic valley with stream or river in the middle N'U—goto9 Yes -goto7 7) Have data showing area flooded more than once every yrs.; or indicators of flooding are present: ❑ Scour marks common ❑ Recent sediment deposition ❑ Vegetation that is damaged or bent in one direction ❑ Soils have alternating deposits ❑ Vegetation along bank edge has flood marks r': Nofor all indicators - go to 9 Yes for any indicator - go to 8 8) Flood waters retained No - Riverine Flow -through Yes - Riverine Impounding ❑ Depression in floodplain ❑ Constricted outlet ❑ Permanent water 9 Has surface water_ outflow - Deeressional Outflow -� Has no surface autflow�-prssxor�C�os-� .Rohm&- jor Gk is (based on bfft awdable infomutian - u azt can he san or pmdbx y kmmn irrfom� aL-a a the vidand s)s*: L_ L APPENDIX 6 Wetland Functions Field Data Form for Conditions with Mitigation 20 Wetland Functions Field Data Form — WSDOT's BPJ Characterization * Project: ] �. Wetland Name: �NrL ��•r d'i Biologist: A. Flood Flow Alteration (Storage and Desynchronization) 1. Wetland occurs in the upper portion of its watershed. 2. Wetland is in a relatively flat area and is capable of retaining higher volumes of water during storm events, than under normal rainfall conditions. 3. Wetland is a closed (depressional) system. 4. If flowthrough, wetland has constricted outlet with signs of fluctuating water levels, algal mats, and/or lodged debris. 5. Wetland has dense woody vegetation. 6. Wetland receives floodwater from an adjacent water course. 7. Floodwaters come as sheet flow rather than channel flow. B. Sediment Removal 1. Sources of excess sediment (from tillage or construction) are present upgradient of the wetland. 2. Slow -moving water and/or a deepwater habitat are present in the wetland. 3. Dense herbaceous vegetation is present. 4. Interspersion of vegetation and water is high in wetland. 5. Ponding of water occurs in the wetland. 6. Sediment deposits are present in wetland. Ye Date: Likely or not likely to provide. (State your rationale.) ,!� !_� S I ��;z i•- t �.� is �, 'j jvf A I J 4 Likely or not likely to provide. (State your rationale.) N ` [7 li (JY�� i4 �C !�.• �,C-.r !)ilC. �.p hrcH�J. �, Y d �o ra, C.. iC�� a.. �. ,. •J w4 S.�r ,^ ,. * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). r.- ' C. Nutrient and Toxicant Removal 1. Sources of excess nutrients (fertilizers) and toxicants (pesticides and heavy metals) are present upgradient of the wetland. 2. Wetland is inundated or has indicators that flooding is a seasonal event during the growing season. 3. Wetland provides long duration for water detention. 4. Wetland has at least 30% areal cover of live dense herbaceous vegetation. 5. Fine-grained mineral or organic soils are present in the wetland. D. Erosion Control and Shoreline Stabilization If associated with water course or shoreline. 1. Wetland has dense, energy absorbing vegetation bordering the water course and no evidence of erosion. 2. A herbaceous layer is part of this dense vegetation. 3. Trees and shrubs able to withstand erosive flood events are also part of this dense vegetation. E. Production of Organic Matter and its Export 1. Wetland has at least 30% areal cover of dense herbaceous + vegetation. 2. Woody plants in wetland are mostly deciduous. 3. High degree of plant community structure, vegetation density, and species richness present. 4. Interspersion of vegetation and water is high in wetland. 5. Wetland is inundated or has indicators that flooding is a seasonal event during the growing season. 6. Wetland has outlet from which organic matter is flushed. 21 Likely or not likely to provide, (State your rationale.) I1 �- J1 d,.. Likely or not likely to provide. �/,,- (State your rationale.) Likely or not likely to provide. (State your rationale.) 'V'1;11.efJ * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). F. General Habitat Suitability 1. Wetland is not fragmented by development. 2. Upland surrounding wetland is undeveloped. 3. Wetland has connectivity with other habitat types. 4. Diversity of plant species is high. 5. Wetland has more than one Cowardin Class, i.e., (PFO, PSS, PEM, PAB, POW, etc.) 6. Has high degree of Cowardin Class interspersion. 7. Evidence of wildlife use, e.g., tracks, scat, gnawed stumps, etc., is present G. Habitat for Aquatic Invertebrates 1. Wetland must have permanent or evidence of seasonal inundation for this function to be provided. 2. Various water depths present in wetland 3. Aquatic bed vegetation present. 4. Emergent vegetation present within ponded area. 5. Cover (i.e., woody debris, rocks, and leaf litter) present within in the standing water area. 6. A stream or another wetland within 2 km (1.2 mi) of wetland. H. Habitat for Amphibians 1. Wetland contains areas of seasonal and/or permanent standing water in most years. (Must be present for this function to be provided) 2. Thin -stemmed emergent and/or floating aquatic vegetation present within areas of seasonal and/or perennial standing water. 3. Wetland buffer < 40% developed, i.e., by pavement — and/or buildings. i Likely or not likely to provide. (State your rationale.) 1W 22 Y- `1 %'�'� . (n/U 1 �� h`r � ,r 1. Y t :� 5 r- d IA) Likely or not likely to provide. (State your rationale.) Y Likely or not likely to provide. (State your rationale.) * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). ,i_, 23 4. Woody debris present within wetland. 5. Lands within 1 km (0.6 mi) of wetland are greater than or equal to 40% undeveloped (e.g., green belts, forest, grassland, agricultural). 6. Other wetlands and/or an intermittent or perennial stream within 1 km (0.6 mi) of wetland. I. Habitat for Wetland -Associated Mammals 1. Permanent water present within the wetland. (Must be present for this function to be provided.) 2. Presence of emergent vegetation in areas of permanent water. 3. Areas containing dense shrubs and/or trees are present within wetland or its buffer. 4. Interspersion between different strata of vegetation 5. Interspersion between permanent open water (without vegetation) and permanent water with vegetation. 6. Presence of banks suitable for denning. 7. Evidence of wildlife use, e.g., dens, tracks, scat, gnawed stumps, etc., is present. J. Habitat for Wetland -Associated Birds 1. Wetland has 30 to 50% shallow open water and/or aquatic bed classes present within the wetland. 2. Emergent vegetation class present within the wetland. 3. Forested and scrub -shrub classes present within the wetland or its buffer. 4. Snags present in wetland or its buffer. 5. Sand bars and/or mud flats present within the wetland. 4 4- I 63, L -r rf Y Likely or not likely to provide. (State your rationale.) N Y- Al Likely or not likely to provide. (State your rationale.) Likely or not likely to provide. / (State your rationale.) Adapted from the Highway Methodology Workbook Supplement for wetland Functions and Values (COE,1995). 6. Wetland contains invertebrates, amphibians, and/or fish. 7, Buffer contains relatively undisturbed grassland �- shrub and/or forest habitats. 8. Lands within 1 km (0.6 mi) of the wetland are greater than or equal to 40% undeveloped (e.g., green belts, forest, grassland, agricultural). K. General Fish Habitat (Must be associated with a fish -bearing water.) 1. Wetland has a perennial or intermittent surface -water connection to a fish -bearing water body 2. Wetland has sufficient size and depth of open water so as not to freeze completely during winter. 3. Observation of fish. 4. Herbaceous and/or woody vegetation is present in wetland and/or buffer to provide cover, shade, and/or detrital matter. 5. Spawning areas are present (aquatic vegetation and/or gravel beds). L. Native Plant Richness 1. Dominant and codominant plants are native. 2. Wetland contains two or more Cowardin Classes. 3. Wetland has three or more strata of vegetation. 4. Wetland has mature trees. M. Educational or Scientific Value 1. Site has documented scientific or educational use. 2. Wetland is in public ownership. } 3. Parking at site is suitable for a school bus. 24 Likely or not likely to provide. (State your rationale.) 3141 � /V Likely or not likely to provide. ✓ )IA (State your rationale.) 1 k i Likely or not likely to provide. (State your rationale.) l` Nb^ rhe >.7 /eN vM1 U 1 Likely or not likely to provide. (State your rationale key P` 1� c rLr. Q (!v ,`• .4a e.. P. I-� * Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). 25 N. Uniqueness and Heritage 1. Wetland contains documented occurrence of a state — or federally listed threatened or endangered species. 2. Wetland contains documented critical habitat, high quality ecosystems, or priority species respectively designated by the U.S. Fish and Wildlife Service, the WDNR's Natural Heritage Program, or WDFW's Priority Habitats and Species Program. 3. Wetland is part of a National Natural Landmark designated by the National Park Service or a Natural Heritage Site designated by WDNR. 4. Wetland has biological, geological, or other features that are determined rare by the local jurisdiction. 5. Wetland has been determined significant by the local jurisdiction because it provides functions scarce for the area. 6. Wetland is part of ... ➢ an estuary, ➢ a bog, ➢ a mature forest. N 11 J) Likely or not likely to provide. (State your rationale.) Adapted from the Highway Methodology Workbook Supplement for Wetland Functions and Values (COE,1995). APPENDIX 7 Wetland Functions and Value Form for Conditions with Mitigation Wetland I.D. Cowardin Class: Function/Value Wetland Functions & Values Form Project: Ecology Category: Occurrence Y N Assessed by: Local Rating: Wetland size: Date: Principal Rationale Function(s) Comments 26 Flood Flow Alteration s/ + 7 Sediment Removal Z/� L Nutrient & Toxicant Removal Erosion Control & Shoreline Stabilization Production of Organic Matter and its Export A, - L General Habitat Suitability 3 '17 Habitat for Aquatic Invertebrates Habitat for Amphibians 4- 6 Habitat for Wetland -Associated Mammals Habitat for Wetland -Associated i �`� Birds. General Fish Habitat Native Plant Richness �I _ 6� Educational or Scientific Value Uniqueness and Heritage ,� APPENDIX 8 Mitigation Monitoring and Construction Notes 1.0 MITIGATION CONCEPT AND GOALS 1.1 MITIGATION CONCEPT The project proposes to fill 2,005square feet (sf) of Wetland A. As mitigation the project will create 6,030sf of new wetland adjacent to the existing wetland boundary as required by the 3:1 mitigation ratio. In addition, the project will reduce the standard 100-foot degraded buffer and enhance it with native tree and shrub species. Wetland Creation will be provided by over excavating upland area and bringing the depression to grade with native topsoil. Hydrology from the roof drains will be utilized to create sufficient wetland hydrology within the creation area. 1 The existing wetland buffer will be cleared of non-native invasive species and will be enhanced with native tree and shrub species. Large woody debris and snags will be added to the mitigation area as habitat features.` The mitigation area will be monitored for a period of 5 years once the wetland creation area pis constructed and all the plants and habitat features are installed. 1.2.0 MITIGATION GOALS 1.2.1 Create 6,030sf of new wetland. - 1.2.2 Remove all non-native invasive species from wetland buffer area. 1.2.3 Enhance areas of wetland creation and buffer with native tree. and shrub species. 1.2.4 Restore temporary construction access to creation area with nativd;tree and shrub plantings. 2.0 CONSTRUCTION SEQUENCE The construction sequence of this project will be implemented as follows: ` 2.1 Pre -construction meeting 2.2 Construction staling 2.3 Construction fencing and erosion control 2.4 Clearing and Grading 2.5 Stabilization of mitigation area + 2.6 Plant material installation 2.7 Permanent fence anOign installation ► - 2.8 Construction inspection 2.9 Agency approval 2.10 Monitoring inspection and reporting E 2.11 gilt -fence removal 2.12 Proj eft completion t , 2.1 Pr` e-construction Meeting A pre -construction meeting will be held on -site prior to commencement of construction, to include the Owner's biologist, the contractor, the Owner and the City. The approved plans and specifications will be L reviewed to ensure that all parties involved understand the intent of the construction documents, specifications, site environmental constraints, sequences, and inspection requirements. 2.2 Construction Staking The limits of clearing and grading of the mitigation area will be marked in the field prior to commencement of construction activities. 2.3 Construction Fencing & Erosion Control All erosion control measures adjacent to the mitigation area, including silt fencing and orange construction fencing will be installed. Erosion control fencing will remain around the mitigation area until clearing, grading and hydroseeding are complete. 2.4 Clearing & Grading Clearing and grading will include excavation of the wetland creation area based upon the grading plan. The biologist will be present on -site for the excavation and grading of this area to confirm and appropriate wetland area has been created prior to the installation of plants. The construction of the wetland area will utilize the smallest construction equipment necessary to complete the grading. General construction equipment will likely include excavator(s), backhoe(s), and trucks for hauling. The construction of the wetland creation area should not impact any additional buffer than necessary and should be routed appropriately to avoid removal of significant trees and vegetation wherever possible. 2.5 Stabilization of Mitigation Area All graded areas will be stabilized with hydroseed or mulch per 3.4.2 upon comptetiatt of grading. Orange construction fencing and/or erosion control fences will be placed around the mitigation area. The preferred time for construction is in the dry season (June -October). 2.6 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 dunng•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 and the City prior to installation. 2.7 Permanent fence and sign installation Upon acceptance of the plant material installation by theibiologist, the permanent fencing will be installed. Sensitive Area signs will be placed along. the fencing and/or on -posts at noted on the Final Mitigation Plan. ` 2.8 Construction Inspection Upon completion of installation, the Owner's biologist will conduct an inspection to confirm proper implementation of the Mitigation Plan. Any corrections, substitutions or missing items will be identified in E - a "punch list". Items of pahicular 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 contractof will submit a reproducible "as -built" drawing to the Owner. 2.9 Agency Approval dJ Following, acceptance of the installation by the Owner's biologist, a letter will be prepared to the City requesting approval of the installation. 2.10 Monitoring Inspection and Reporting The monitoring program will begin in the first growing season (approximately one year) following installation approval by the City of Federal Way and the permitting agencies. The subsequent monitoring inspections will be conducted in accordance with the approved Monitoring Program. 2.11 Silt Fence Removal ❑ Mitigation Site Erosion control fencing adjacent to the mitigation area will remain in place until the mitigation area has been stabilized. 2.12 Project Completion L__ rY r~ If, after the final year of monitoring, the project has satisfied the objectives and goals of the approved Mitigation Plan, the Owner's biologist will prepare a letter to the City and the permitting agencies requesting final approval and closure of the mitigation plan. 3.0 CONSTRUCTION AND PLANTING NOTES 3.1 SITE PREPARATION 3.1.1 The Landscape Contractor will approve existing conditions of subgrade prior to initiation of any mitigation installation work. The Landscape Contractor will inform the Owner of any discrepancies between the approved construction document and existing conditions. 3.1.2 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". 3.1.3 The Landscape Contractor will hand grub all blackberry varieties as specified in Section 4.13 of the approved Mitigation plan. Weed debris will be disposed of off site. 3.2 PLANT MATERIALS 3.2.1 All plant materials will be as specified in the plant schedule. Only vigorous plants free of defects, diseases and infestation are acceptable for installation. 3.2.2 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 fromnative stock, no cultivars or horticultural varieties will be allowed. All plant materials will be grown from nursery stock unless otherwise approved. 3.2.3 All nursery grown plant materials will be in containers or balled and burlapped. Bare root plantings will be subject to approval. }} 3.2.4 All plant materials stored bn-site Ionger than two (2) weeks will be organized in rows and maintained by the contractor at no additional cast to the owner. Plants will not be stockpiled on the site longer than four weeks. Plant materials temporarily stored will be subject to inspection and approval prior to installation. 3.2.5 Substitution of.species or plalit size requests must be submitted in writing to the Owner and approved by the Owner's biologist and; PALS Environmental Biologist in writing prior to delivery to site. 3.2.6 All 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 measuies shall be taken to ensure plant materials do not dry out before planting. Immediately after installation the mitigation planting area will be saturated to avoid capillary stress. 3.2.7 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. 3.3 PLANT AND HABITAT MATERIAL INSTALLATION 3.3.1 All plant and habitat 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 will be rejected. 3.3.2 All plant materials delivered and accepted should be planted immediately, following installation of the habitat features depicted on the plan. Plant materials not planted within 24 hours will be heeled -in per note 3.2.3 Plant materials stored under temporary conditions will 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. 3.3.4 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. 3.3.5 No fertilizers will be used within the restoration area. In buffer areas only, install "Agriform", or equal plant fertilizer to all planting pits as specified by manufacturer. Fertilizers are allowed only below grade in the planting pits in the buffer areas. No sewage sludge fertilizer ("SteerCo" or "Growc6") is allowed in the mitigation area. 3.3.6 All containerized plant materials will be removed from their containers carefully�td prevent damage to the plant and its roots. Plants removed from their containers will be planted immediately. H 3.3.7 All plant materials will be placed as shown on the approved mitigation plan. If the fmal 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. 3.3.8 All conifer trees will be staked per the detail on the mitigation plan. All deciduous trees 1" caliper and larger will be staked per the detail on the mitigation plan. Remove tree staking and guy wires from all trees after one year. Litt guy wires away from trees and remoye wire'and tree 'stakes from site. 3.4 PLANTING SCHEDULE AND WARRANTY 3.4.1 A fall -winter installation schedule (October V -March 15`h)is preferred for lower mortality rates of new plantings. If plant installation, occurs during the spring or summer (March 15'' - Oct. 0) the plantings will be irrigated with a temporary automatic irrigation system throughout the summer months. The automatic irrigation system will provide head to head coverage of the entire planting area. The automatic controller will be scheduled for a minimum o fteen (15) minutes every day until fall rains can provide adequate rainfall to support the plant material. The mitigation plantings will be watered twice a day for fifteen (15) minutes for the first week. 3.4.2 All disturbed areas will be mulched or seeded with 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 Is' If the cover is: not adequately established by October I", 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: l - 3.4.3 The installer will warrant all plant materials to remain healthy and alive for a period of one year after installation acceptance. The installer will replace all dead or unhealthy plant materials per the approved plans and specifications. i 3.5 SITE CONDITIONS 3.5.1 The installer will coordinate with the Owner and the Owner's biologist for construction scheduling. 3.5.2 Landscape installation will begin after biologist acceptance of grading and construction. L3.5.3 Silt fences will be installed as shown 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. 3.5.4 After 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. 3.5. All plant material will be planted with suitable soils per planting details. Soils from planting holes will be spread and smoothed across the mitigation area. 4.0 MAINTENANCE PROGRAM INTRODUCTION This maintenance program outlines the program, procedures and goals for restoration area. This maintenance program will 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 until the Standards of Success are met. The maintenance contractor will complete the work as outlined.below.. " f7 4.1 MAINTENANCE WORK SCOPE 4.1.1 The primary goals of the mitigation plan are to restore the cleared atea with Native plant community typically found around undisturbed uplands and steep slopes. To accomplish this goal, normal landscaping methods must be modified to include: i a. No mowing or trimming of ground cover or vegetation in the mitigation area. b. No placement of fertilizers in the mitigation area. Will c. No placement of bark mulch or equivalent`in the mitigation area, except as noted in the planting details. 11 d. No placement of grass clippings, landscape debris, fill or ornamental plant materials in the mitigation area. 4.1.2 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? lilt and/or permanent fencing and signage as needed. 4.1.3 Work tube 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. 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. 4.2 MAINTENANCE SCHEDULE The Owner 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. Additional work 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. 4.3 WATERING REQUIREMENTS 4.3.1 If plantings are installed within the dormant period throughout the winter months (October through March 15'`) watering is not required. 4.3.2 If plantings are installed during the summer months (March through October 1") a temporary irrigation system will be required. The temporary irrigation system may be removed after the, first year providing the plantings are established and acclimated to on -site conditions per Construction and' Plantings Notes Sec. 4.0. 4.3.3 Irrigation will continue from initiation through October 1" , or between June I" and' Oct. 1" for any subsequent year. Irrigation, if required, will provide head to head coverage for 15 titinutes per day every day. 4.3.4 Irrigation will only be used to help establish plant materials and is not intended tv supplement or create additional hydrology in the mitigation area. Irrigation water for the mitigation area will be taken from the existing water lines in the area and not pumped out any wetlands, pond or streams. 4.4 CLOSEOUT OF FIVE YEAR MONITORING PROGRAM Upon completion of the monitoring program and acceptance of the mitigation area by the City, the maintenance of the project will be reduced to include removal'of litter and debris, removal of noxious weeds and undesirable vegetation, and repair of vandalized areas. 5.0 MONITORING PROGRAM 5.1 SAMPLING METHODOLOGY The mitigation area will be monitored ten times over a five year period. Monitoring will be conducted using the techniques and procedures described below to quantify the survival, relative health and growth of plant material. A monitoring report submitted following each monitoring visit will describe and quantify the status of the mitigation area at thi t time. 5.1.1 Vegetation The vegetation monito`t ing consists of inspection of the planted material to determine the health and vigor of the installation. All the planted material in the restoration area will be inspected during each monitoring visit to Otermine<the level of survival of the installation. 5.2 STANDARDS OF SUCCESS La Evaluation of the success of the mitigation project will be based upon an 80% survival for all planted woody vegetation at the end of year 5. Lb Not more than 10%cover of non-native invasive species within mitigation area after year 5. Volunteer native, non-invasive species will be included as acceptable components of the mitigation, but will not be counted towards the 80% success requirement. s 5.3 CONTINGENCY PLAN I A contingency plan can be implemented if necessary. Contingency plans can include regrading, additional plant installation, erosion control, additional water quality facilities, modifications to hydrology, and plant substitutions including type, size, and location. If the monitoring results indicate that any of the performance standards are not being met, it may be necessary to implement all or part of the contingency plan. Careful attention to maintenance is essential in ensuring that problems do not arise. Should any of the site fail to meet the success criteria, a contingency plan will be developed and implemented with the City approval. Such plans are prepared on a case -by -case basis to reflect the failed mitigation characteristics. Contingency/maintenance activities will include, but are not lirnited to: • 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 'same species or similar species approved by the City. ■ Irrigating the area only as necessary during dry weather if plants appeai'to be too;dry, with a minimal quantity of water. ■ Reseeding the mitigation area with an approved grass mixture as necessary if erosion/sedimentation occurs. ■ Removing all trash or undesirable debris from the restoration area as .necessary per 4-0 Maintenance Program. ,,�1lI• �� , ,�ti m JN 0 50 100 150 200 SCALE: 1"= 100' 40,497 SF REDUCED BUFFER TO BE ENHANCED WINA T1 VE TREE & SHRUB PLANTINGSALONG WITHLARGE WOODYDEBRIS 'gg$ggo 6,030 SF WETLAND CREA TION II � Critical Area Bo Help protect and A rVor area WETLAND SIGN DE TAIL NOT TO scare a , "X "x 'r it (Typ.) b Eck ll w1nafive soil (Typ.) I ICI I 1EE1 I 1EE11I I I. I 1EE1 Note., Install habitat fence s shown FENCE DE TAIL Nor TO SCALE NOTE: BASE MAPS PROVIDED B YAHBL, INC. PRO WEL E!TPETERSO V HA MMER Ai RCHITECTS /— 4WW'post Sewall Wetland Consulting, Inc. 1103 West Meeker Street Ste. #101, Kent, Wa 98032 253-859-0515 Fox 253-852-4732 /1 f Designed-226 by ,. by - Drawn CmL Checked Date: err -0 '.„d ,,, p8 � L s"f 2/11"6,76-11,-IAVEs",,, N 17',�, 1-4 1 i\,f -Y"". 9 3 6 r11111 I,"\! 1f11N p 11-1 K11 E- � 425) -4,701 FAX (3 4'-rl),5) 77,,,�5-51'77- B1, 11-IARC f-i. i'*�, ,(wattion and dl� remodetfor S.312th,�ted�15eiaC ay., IN.21 g8003 No./ Revision By 11/20/Oa Date 5481 REGISTERED RCHITECT s PNEN A.HA MER ST OF WASHINGTON YcJ Drawn By Checked By 0717 Project Number 0718-E-51TF. File Number Sheet Title Sheet Number M Ab^=BUILT