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16-105951
i�1=CE"JED P *1 . ti CommuNITV & ECONOMIC DEVELOPMENT DEPARTMENT 33325 8`h Avenue South CITY OF FEDERAL VVAY Federal Way, WA 98003-6325 cixv a�'"� --�=—' COG 253-835-2607; Fax 253-835-2609 Federal Way wW offcdcralna�.cam SHORELINE SUBSTANTIAL DEVELOPMENT PERMIT EXEMPTION APPLICATION Project Name: Project Address; File # 16 — Iy 5 9 51 — DO TO BE COMPLETED BY APPLICANT Yoon Shoreline Violation Resolution and Bulkhead Repair Project 31008 39th PI SW, Federal Way, WA 98023 Applicant: Hyongsop (Joe) Yoon 31008 39th PI SW Mailing Address: Federal Way, WA 98023 Phone Number: Description of 206-409-7455 E-mail: hsjyoon@yahoo.com We are proposing to resolve an outstanding shoreline violation with the City of Federal Way by removing the pavers and fill material placed within the shoreline jurisdiction without permits. The shoreline will be restored by regrading the slope, replanting native vegetation and reducing the size and area of the paver path to pre -violation conditions. The existing bulkhead will be repair and rehabilitate in order to restore the structure to a state comparable to its original condition. Wind and wave action has led to the current condition. We are proposing to restack the existing bulkhead in a more vertical alignment landward of OHW. Meets the criteria for exemption under which section of * WAC 173-27-040: (2) (b) 4 (C. } *Washington Administrative Code online: apps.leg.wa.gov Applic t s Signature Date Bulletin #143 — March 25, 2013 1 of 2 k:\Handouts\Shoreline Exemption TO BE COMPLETED BY STAFF 1) The proposed development is consistent with Section U) �kof WAC 173-27-040 and is erefore exempt from the Substantial Development Permit Process. es ❑ No (explanatory narrative attached) 2) Proposal requires: Yes No [l joreline Variance g� 0 line Conditional U 0 evie , Approval ❑ errn by other State or federal Agency G•�. d � d � 14 pA- A-f Av4- C ,inn . [ ► —tO Sq� -sE 3) E opo complies with applicable provisions of the City's Shoreline aster Program. Yes ❑No Condition(s) attached: ayes ❑No " G'P� l; toVt�- -f-v tflrn lc� u•th e:!- 's �P�N� 4) In accordan-ce with F WRC Section 15.05. 30, is app;kn cation is hereby: Approved ❑ Denied );Z � ;-27 % 7-- irector, Community & Economic Development Da DistR��ib�u�"on: W �d' �kpplicant F er ut p�ttaFutside Agency E� cjy-p N w VW - Bulletin # 143 —March 25, 2013 2 of 2 k:\Handouts\Shoreline Exemption Technical Memorar,%Aum To: Leila Willoughby -Oakes, Assistant Planner, City of Federal Way From: Bill Rehe cc: Joe Yoon Date: February 20, 2017 File: 16-105953-SF/16-105951-SH, PLANNING COMMENTS Re: Yoon Slope Remediation & Bulkhead Repair, 31008 39th Place SW, Federal Way Dear Mrs. Willoughby -Oakes: Thank you for your comments on the Yoon Slope Remediation & Bulkhead Repair shoreline exemption and building permit. As you requested, I have revised sheets C3 and C4. After evaluating the benefits and costs, we have selected option #1. 1 agree with your comment that the shoreline is a harsh environment and that the soils should be enhanced for quicker plant establishment. In addition to the soil enhancement suggestion, I have included some additional plant related standards I follow on all my projects. Please let me know if you have additional questions. Planting Standards: Planting and Irrigation Upon achieving final grade and prior to planting, the graded areas will be assessed for excessive soil compaction. Areas that exhibit excessive soil compaction will be cross ripped. Planting of trees, shrubs, and groundcover shall occur during the dormant period from January through March, following earthwork. Plant installation should not occur during freezing conditions. The timing of installation will also depend on weather conditions and surface saturation levels. Irrigation of the site should occur, as necessary, during the first two summer after planting to prevent plants from drying out. Irrigation may consist of a temporary system, and could include an above ground system or hand watering. Irrigation should occur once every 2-3 days during the summer and early fall, depending on the outside temperatures, recent precipitation and surface saturation levels. Plant Material and Handling Specifications All plant materials to be used on the site will be native to the lower Puget Sound region and will consist of nursery grown stock from a reputable, local dealer. Only native species specified in the approved plant schedule are to be used; no hybrids will be allowed. Substitutions to the planting plan will be submitted in writing to the City of Federal Way. Plant material provided will be typical of their species or variety; they will exhibit normal, densely - developed branches and vigorous, fibrous root systems. Plants will be sound, healthy, vigorous plants free from defects and all forms of infestation or disease. Plants shall not exhibit rootbound conditions. Under no circumstances shall container stock be handled by their trunks, stems, or tops. All precautions customary in good trade practice shall be taken in preparing plants for moving and storage. Workmanship that fails to meet industry standards will be rejected. Plants will be packed, transported, and handled with care to ensure protection against injury and from drying out. If plants cannot be planted immediately upon delivery they should be protected with soil, wet peat moss, or in a manner acceptable to the project biologist. Plants transported on open vehicles should be secured with a protective covering to prevent windburn. All plant material shall be inspected by the project biologist upon delivery. Plant material not conforming to the specifications above will be rejected and replaced. Fertilizer (if appropriate) will be in the form of a natural, organic fertilizer such as fish or bone meal, or an approved like form. Manure will not be allowed as fertilizer. Fertilizer should be delivered in original, iinonenond anri i inriamanPri rnnfainarc chnwinn wainhf nnalvcic anri names of marn ifarfi iror Plant Material Preparation and Installation Circular plant pits with vertical sides will be excavated for all container stock. The pits should be at least twice the diameter of the container, and the depth of the pit should be at least 6 inches greater than the depth of the container or root system. The bottom of each pit will be scarified to a depth of 4 inches, and a small flat - 'copped mound will be prepared to support the root system. The pit should be thoroughly wetted prior to plant insertion to prevent capillary stress. (.nntninorg will be removed prinr }n planting nnri +he rnnt ay c+eme AA11 tihe gontly 10 ened. ;;r^vkei � rvvtu should be pruned with a sharp instrument and roots should be thoroughly soaked prior to installation. Set plant material upright in the planting pit to proper grade and alignment. Water plants thoroughly midway through backfilling with a quality soil and add fertilizer (if appropriate). Water pits again upon completion of backfilling, ensuring no air pockets remain in the planting pit. No filling should occur around trunks or stems. Do not use frozen or muddy mixtures for backfilling. Form a 24-inch diameter ring of wood chip mulch around the edge of each planting pit to retain water (4-inch minimum depth, keeping 2" away from trunk), at the discretion of the project biologist. 2 Washington Department of Fish &Wildlife HYDRAULIC PROJECT APPROVAL PO Box 43234 HEW A7LDLIFE Olympia, WA 98504-3234 (360)902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 PERMITTEE AUTHORIZED AGENT OR CONTRACTOR Hyongsop (Joe) Yoon 31008 39th PI SW Federal Way, WA 98023 William Rehe 8305 Dogwood Ln NW Gig Harbor, WA 98332-6724 Project Name: Yoon Shoreline Violation Resolution and Bulkhead Repair Project Project Description: The overall goal of this project is to resolve the outstanding shoreline violation with the City of Federal Way and repair and rehabilitate the existing bulkhead. PROVISIONS 1. TIMING LIMITATION: To protect fish and shellfish habitats at the job site, work below the ordinary high water line must occur from February 21, 2017 through MARCH 7, 2017. 2. APPROVED PLANS: Work must be accomplished per plans and specifications submitted with the application and approved by the Washington Department of Fish and Wildlife, entitled YOON SHORELINE VIOLATION RESOLUTION AND BULKHEAD REPAIR, dated AUGUST 2016, except as modified by this Hydraulic Project Approval. You must have a copy of these plans available on site during all phases of the project proposal. NOTIFICATION 3. PRE- AND POST -CONSTRUCTION NOTIFICATION: You, your agent, or contractor must contact the Washington Department of Fish and Wildlife by e-mail at HPAapplications@dfw.wa.gov; mail to Post Office Box 43234, Olympia, Washington 98504-3234; or fax to (360) 902-2946 at least three business days before starting work, and again within seven days after completing the work. The notification must include the permittee's name, project location, starting date for work or date the work was completed, and the permit number. The Washington Department of Fish and Wildlife may conduct inspections during and after construction; however, the Washington Department of Fish and Wildlife will notify you or your agent before conducting the inspection. 4. PHOTOGRAPHS: You, your agent, or contractor must take photographs of the job site before the work begins and after the work is completed. You must upload the photographs to the post -permit requirement page in the Aquatic Protection Permitting System (APPS) or mail them to Washington Department of Fish and Wildlife at Post Office Box 43234, Olympia, Washington 98504-3234 within 30-days after the work is completed. 5. FISH KILL/ WATER QUALITY PROBLEM NOTIFICATION: If a fish kill occurs or fish are observed in distress at the job site, immediately stop all activities causing harm. Immediately notify the Washington Department of Fish and Wildlife of the problem. If the likely cause of the fish kill or fish distress is related to water quality, also notify the Washington Military Department Emergency Management Division at 1-800-258-5990. Activities related to the fish kill or fish distress must not resume until the Washington Department of Fish and Wildlife gives approval. The Washington Department of Fish and Wildlife may require additional measures to mitigate impacts. Page 1 of 7 ^� Washington Department of Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box43234 111.higwn Deparh-f of Olympia, WA 98504-3234 FISHudWILDLIFE (360) 902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 STAGING, JOB SITE ACCESS AND EQUIPMENT 6. Establish the staging area (used for activities such as equipment storage, vehicle storage, fueling, servicing, and hazardous material storage) in a location and manner that will prevent contaminants like petroleum products, hydraulic fluid, fresh concrete, sediments, sediment -laden water, chemicals, or any other toxic or harmful materials from entering waters of the state. 7. Clearly mark boundaries to establish the limit of work associated with site access and construction. 8. Limit the removal of native bankline vegetation to the minimum amount needed to construct the project. 9. Retain all natural habitat features on the beach larger than twelve inches in diameter including trees, stumps, logs, and large rocks. These natural habitat features may be moved during construction but they must be placed near the preproject location before leaving the job site. 10. Confine the use of equipment to specific access and work corridor shown in the approved plans. 11. Check equipment daily for leaks and complete any required repairs before using the equipment in or near the water. 12. Lubricants composed of biodegradable base oils such as vegetable oils, synthetic esters, and polyalkylene glycols are recommended for use in equipment operated in or near water. 13. Operate vessels with minimal propulsion power to avoid prop scour damage to the bed and marine vegetation habitats. 14. Restrict vessel operation to tidal elevations adequate to prevent propeller related damage to seagrass and kelp. 15. Do not deploy anchors or spuds in seagrass or kelp. 16. Maintain anchor cable tension, set and retrieve anchors vertically, and prevent mooring cables from dragging to avoid impacts to seagrass and kelp. 17. Relocate vessels moored over seagrass between March 21 and September 21 every 4th day to minimize shading of seagrass. CONSTRUCTION -RELATED SEDIMENT, EROSION AND POLLUTION CONTAINMENT 18. Do not conduct project activities when the work area is inundated by tidal waters. 19. Prevent contaminants from the project, such as petroleum products, hydraulic fluid, fresh concrete, sediments, sediment -laden water, chemicals, or any other toxic or harmful materials, from entering or leaching into waters of the state. 20. Use tarps or other methods to prevent treated wood, sawdust, trimmings, drill shavings and other debris from contacting the bed or waters of the state. CONSTRUCTION MATERIALS 21. Do not use native bed material, other than material excavated for bulkhead footings or placement of bulkhead base Page 2 of 7 Washington Department of Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box43234 n'nshi%on Depaewl of Olympia, WA 98504-3234 FISH.�d WILDLIFE (360)902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 rock, for project construction or fills. 22. Do not use wood treated with oil -type preservative (creosote, pentachlorophenol) in any hydraulic project. Wood treated with waterborne preservative chemicals (ACZA, ACQ) may be used if the Western Wood Preservers Institute has approved the waterborne chemical for use in the aquatic environment. The manufacturer must follow the Western Wood Preservers Institute guidelines and the best management practices to minimize the preservative migrating from treated wood into aquatic environments. To minimize leaching, wood treated with a preservative by someone other than a manufacturer must follow the field treating guidelines. These guidelines and best management practices are available at www.wwpinstitute.org. BULKHEAD — ROCK 23. Project activities include repairing and rehabilitating the existing bulkhead to resolve the outstanding shoreline violation with the City of Federal Way, as illustrated in your plans, except as modified by this Hydraulic Project Approval. 24. As shown in the approved plans, the length of the new rock bulkhead must not exceed 100 ft. 25. Establish the waterward distance of the rock bulkhead from a permanent benchmark(s) (fixed objects) before starting work on the project. The benchmarks must be located and shown on the approved plans, marked in the field, and protected to serve as a post -project reference for ten years. 26. As specified in the application, the existing rock bulkhead will be restacked landward of OHW (approximately 4-5 ft landward of existing). Rock material from the existing rock bulkhead displaced onto the beach waterward of the existing rock bulkhead toe may be retrieved and re -used in the new rock bulkhead. Native rocks waterward of the existing rock bulkhead toe that did not originate from the existing bulkhead must be left in place on the beach. 27. Bury base rocks a minimum of 18 inches below the preproject natural beach grade. 28. Build the rock bulkhead using clean, angular material of a sufficient durability and size to prevent its being broken up or washed away by high water or wave action. 29. Incorporate all upland drainage tight lines into the bulkhead near beach grade to prevent erosion of the bed. 30. For beach nourishment projects, place sand and gravel on the beach following the provisions below: a. Sand and gravel placed on the beach should be of a composition similar to the on -site bank/bluff material or a sand/gravel mix meeting the following specifications: Sieve Size Percent passing by weight 5/8-inch 100 3/8-inch 90-100 1/1 6-inch 40-50 1/100-inch (.25mm) 0-5 b. Spread the material along the entire length of the bulkhead (100 If) waterward for a distance of 9 lineal feet to a uniform depth of 6 inches. c. Use clean, round gravel, not crushed or angular rock. d. The mix must not contain fine silt or clay type soils. e. The sand and gravel mix must be placed within 72 hours following bulkhead construction. 31. Keep the use of equipment on the beach to a minimum, confined to a single access point, and limited to a 25-foot work corridor waterward of the base rocks. Construction material must not touch the beach outside beach outside this Page 3 of 7 "r Washington Department of Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box43234 m�h�v�ra� Olympia, WA 98504-3234 FISH..dWILDLIFE (360)902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 work corridor. 32. Do not stockpile excavated materials containing silt, clay, or fine-grained soil waterward of the ordinary high water line. 33. You may stockpile sand, gravel, and coarse excavated material waterward of the ordinary high water line provided the material is placed within the 25-foot work corridor waterward of the base rocks. 34. If sand, gravel, and other coarse excavated material is to be temporarily placed where it will come into contact with tidal waters, this material must be covered with filter fabric and adequately secured to prevent erosion and/or potential entrainment of fish. 35. Prior to tidal inundation, backfill all trenches, depressions, or holes created during construction waterward of the ordinary high water line. 36. Remove all stockpiled and excavated material from the beach within 72 hours of bulkhead construction. 37. Reshape beach area depressions created during project activities to preproject beach level upon project completion. DEMOBILIZATION/CLEANUP 38. Remove all trash and unauthorized fill in the project area, including concrete blocks or pieces, bricks, asphalt, metal, treated wood, glass, floating debris, and paper, that is waterward of the ordinary high water line and deposit upland. 39. Remove any riprap (including quarry spalls) scattered, or abandoned outside the original design footprint from the bed and deposit it an upland area above the limits of extreme high tidal water. 40. Remove all debris or deleterious material resulting from construction from the beach area or.bed and prevent from entering waters of the state. 41. Do not burn wood, trash, waste, or other deleterious materials waterward of the ordinary high water line. 42. PLANTING REQUIREMENT: The shoreline must be replanted per the planting plan dated AUGUST 2016. Alteration or disturbance of the bank and bank vegetation must be limited to that necessary to construct the project. Within seven calendar days of project completion, all disturbed areas must be protected from erosion using vegetation or other means. Plant riparian vegetation during the first dormant season (late fall through late winter) after project completion. The banks, including the area behind the bulkhead, must be (re)planted using appropriate salt and clay tolerant native species to stabilize the shoreline. Additional planting options are available in the Marine Riparian Vegetation Communities of Puget Sound by James Brennan available at www.pugetsoundnearshore.org/technical_papers/riparian.pdf. Vegetation must be planted at a maximum interval of three feet (on center) and maintained for at least three years to ensure at least eighty percent of the plantings survive. Failure to achieve the eighty percent survival in year three will require you to submit a plan with follow-up measures to achieve requirements or reasons to modify requirements. You must upload the photographs to the post -permit requirement page in the Aquatic Protection Permitting System (APPS) or mail them to Washington Department of Fish and Wildlife at Post Office Box 43234, Olympia, Washington 98504- 3234 within 30-days after the work is completed. Page 4 of 7 - Washington Department of Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box43234 FISH.M WILDLIFE Olympia, WA 98504-3234 (360)902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 LOCATION #1: Site Name: Yoon Project Site 31008 39th PI SW, Federal Way, WA WORK START: February 21, 2017 WRIA Waterbody: FPA/Public Notice Number: N/A Application ID: 10280 WORK END: March 7, 2017 10 - Puyallup - White Wria 10 Marine 1/4 SEC: Section: Township: Range: Latitude: NE 1 /4 11 21 N 03 E 47.326121 Location #1 Driving Directions From Interstate 5: Take S 312th St to SW Dash Point Rd Turn left onto SW Dash Point Rd Turn right to stay on SW Dash Point Rd Turn left to stay on SW Dash Point Rd Turn right onto 39th Ave SW Destination is on the right. Tributary to: Longitude: County: -122.382006 King APPLY TO ALL HYDRAULIC PROJECT APPROVALS This Hydraulic Project Approval pertains only to those requirements of the Washington State Hydraulic Code, specifically Chapter 77.55 RCW. Additional authorization from other public agencies may be necessary for this project. The person(s) to whom this Hydraulic Project Approval is issued is responsible for applying for and obtaining any additional authorization from other public agencies (local, state and/or federal) that may be necessary for this project. This Hydraulic Project Approval shall be available on the job site at all times and all its provisions followed by the person (s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work. This Hydraulic Project Approval does not authorize trespass. The person(s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work may be held liable for any loss or damage to fish life or fish habitat that results from failure to comply with the provisions of this Hydraulic Project Approval. Failure to comply with the provisions of this Hydraulic Project Approval could result in a civil penalty of up to one hundred dollars per day and/or a gross misdemeanor charge, possibly punishable by fine and/or imprisonment. All Hydraulic Project Approvals issued under RCW 77.55.021 are subject to additional restrictions, conditions, or revocation if the Department of Fish and Wildlife determines that changed conditions require such action. The person(s) to whom this Hydraulic Project Approval is issued has the right to appeal those decisions. Procedures for filing appeals are listed below. Page 5 of 7 �. Washington Department of Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box 43234 O'naAfngwn Depaoml of Olympia, WA 98504-3234 FISH.nd WIDLH (360)902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 MINOR MODIFICATIONS TO THIS HPA: You may request approval of minor modifications to the required work timing or to the plans and specifications approved in this HPA unless this is a General HPA. If this is a General HPA you must use the Major Modification process described below. Any approved minor modification will require issuance of a letter documenting the approval. A minor modification to the required work timing means any change to the work start or end dates of the current work season to enable project or work phase completion. Minor modifications will be approved only if spawning or incubating fish are not present within the vicinity of the project. You may request subsequent minor modifications to the required work timing. A minor modification of the plans and specifications means any changes in the materials, characteristics or construction of your project that does not alter the project's impact to fish life or habitat and does not require a change in the provisions of the HPA to mitigate the impacts of the modification. Minor modifications do not require you to pay additional application fees or be issued a new HPA. If you originally applied for your HPA through the online Aquatic Protection Permitting System (APPS), you may request a minor modification through APPS. A link to APPS is at http://wdfw.wa.gov/licensing/hpa/. If you did not use APPS you must submit a written request that clearly indicates you are seeking a minor modification to an existing HPA. Written requests must include the name of the applicant, the name of the authorized agent if one is acting for the applicant, the APP ID number of the HPA, the date issued, the permitting biologist, the requested changes to the HPA, the reason for the requested change, the date of the request, and the requestor's signature. Send by mail to: Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234, or by email to HPAapplications@dfw.wa.gov. Do not include payment with your request. You should allow up to 45 days for the department to process your request. MAJOR MODIFICATIONS TO THIS HPA: You may request approval of major modifications to any aspect of your HPA. Any approved change other than a minor modification to your HPA will require issuance of a new HPA. If you paid an application fee for your original HPA you must pay an additional $150 for the major modification. If you did not pay an application fee for the original HPA, no fee is required for a change to it. If you originally applied for your HPA through the online Aquatic Protection Permitting System (APPS), you may request a major modification through APPS. A link to APPS is at http://wdfw.wa.gov/licensing/hpa/. If you did not use APPS you must submit a written request that clearly indicates you are requesting a major modification to an existing HPA. Written requests must include the name of the applicant, the name of the authorized agent if one is acting for the applicant, the APP ID number of the HPA, the date issued, the permitting biologist, the requested changes to the HPA, the reason for the requested change, the date of the request, payment if the original application was subject to an application fee, and the requestor's signature. Send your written request and payment, if applicable, by mail to: Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234. You may email your request for a major modification to HPAapplications@dfw.wa.gov, but must send a check or money order for payment by surface mail. You should allow up to 45 days for the department to process your request. APPEALS INFORMATION If you wish to appeal the issuance, denial, conditioning, or modification of a Hydraulic Project Approval (HPA), Washington Department of Fish and Wildlife (WDFW) recommends that you first contact the department employee who issued or denied the HPA to discuss your concerns. Such a discussion may resolve your concerns without the need for further appeal action. If you proceed with an appeal, you may request an informal or formal appeal. WDFW encourages you to take advantage of the informal appeal process before initiating a formal appeal. The informal appeal process includes a review by department management of the HPA or denial and often resolves issues faster and with less legal complexity than the formal appeal process. If the informal appeal process does not resolve your concerns, you may advance your appeal to the formal process. You may contact the HPA Appeals Coordinator at (360) 902-2534 for more information. Page 6 of 7 Washington Department of Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box43234 Olympia, WA 98504-3234 FLSH.�dWILDLIFE (360)902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 A. INFORMAL APPEALS: WAC 220-660-460 is the rule describing how to request an informal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete informal appeal procedures. The following information summarizes that rule. A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request an informal appeal of that action. You must send your request to WDFW by mail to the HPA Appeals Coordinator, Department of Fish and Wildlife, Habitat Program, 600 Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov; fax to (360) 902-2946; or hand -delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor. WDFW must receive your request within 30 days from the date you receive notice of the decision. If you agree, and you applied for the HPA, resolution of the appeal may be facilitated through an informal conference with the WDFW employee responsible for the decision and a supervisor. If a resolution is not reached through the informal conference, or you are not the person who applied for the HPA, the HPA Appeals Coordinator or designee will conduct an informal hearing and recommend a decision to the Director or designee. If you are not satisfied with the results of the informal appeal, you may file a request for a formal appeal. B. FORMAL APPEALS: WAC 220-660-470 is the rule describing how to request a formal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete formal appeal procedures. The following information summarizes that rule. A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request a formal appeal of that action. You must send your request for a formal appeal to the clerk of the Pollution Control Hearings Boards and serve a copy on WDFW within 30 days from the date you receive notice of the decision. You may serve WDFW by mail to the HPA Appeals Coordinator, Department of Fish and Wildlife, Habitat Program, 600 Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov; fax to (360) 902-2946; or hand -delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor. The time period for requesting a formal appeal is suspended during consideration of a timely informal appeal. If there has been an informal appeal, you may request a formal appeal within 30 days from the date you receive the Director's or designee's written decision in response to the informal appeal. C. FAILURE TO APPEAL WITHIN THE REQUIRED TIME PERIODS: If there is no timely request for an appeal, the WDFW action shall be final and unappealable. Habitat Biologist Laura Arber Laura.Arber@dfw.wa.gov 425-379-2306 J for Director ►VITA 919my Page 7 of 7 GeoResources, LLC Fx. 253-896-1011 5007 Pacific Hwy E., Suite 16 Fx. 253-896-2633 RESUBMITTED Fife, Washington 98402-2462 ( (1 O j l CrTY OF FEOE6AL WAY November 11, 2016 ld COMMUNITY DEVELOPMENT Updated February 3, 2017 ^� Mr. Joe Yoon 31008 - 39th PI SW Federal Way, WA 98335 Geotechnical Report -Update 2 Shoreline Restoration - Bulkhead Repair 31008 - 39th PI SW Federal Way, Washington Job No: Yoon.39thPISW.RGu2 INTRODUCTION This updated geotechnical report summarizes our observations from multiple site visits, our subsurface explorations, and provides geotechnical recommendations for restoration of the shoreline slope area and repair of the existing but failing rock bulkhead. We understand that based on the City of Federal Way requirements, you have decided to remove the failed block walls and return the shoreline slope area to the original configuration of a vegetated slope with a walking path. Both the bulkhead repair and the slope restoration will occur concurrently. Grading plans are provided separately. We received review comments from GeoDesign dated September 27, 2016 and have updated code sections to the Revised FWRC 15.05 code. Chapter 15 (Section 05.030) is specific to shoreline areas, including a discussion/definition of critical areas, similar to Chapter 19 (Section 05.070). The general location of the site is illustrated on Figure 1. The site topography (King County Website) is included on Figure 2a with the exploration locations. The proposed slope configuration with the new path location is included as Figure 2b. Full sheet plans are being provided separately, as requested. The historic (1970s) site development is illustrated on Figure 2c, an aerial photograph (WDOE), 1970. The lower failed block wall was situated above the existing rock bulkhead that has settled over time, although we understand that the majority of the settlement occurred in the last two years associated with significant storm events. Based on our discussions, you will apply for permits to repair the rock bulkhead at the same time as the slope restoration. We understand that the pre-existing block retaining walls were constructed several years ago to replace creosoted timber walls (railroad ties) that were decomposing and failing. Unfortunately, the wall designer and/or contractor did not acquire the necessary permits, or inform you that they were needed. You were notified by the City of Federal Way in 2014 that the necessary permits were not in place. The walls began to fail shortly after constructed, and are currently in a state of collapse. Efforts to permit the reconstruction of the walls and path have been rejected by the City, and to manage costs and complete the project, you have elected to regrade the slope without the walls and reduce,the ap th dimensions, returning the impervious surface area to less than the on inal 1970s configuration. To provide the necessary ateral support for the restored slope area, the failing bulkhead will be repaired and function as a toe buttress. The Yoons — 39th PI SW February 3, 2017 Page 2 SITE CONDITONS The subject site is situated along the northwest shoreline in the City of Federal Way, Washington. The existing residence is located in an established shoreline residential area that is situated near the top of a moderately sloping shoreline bluff area. The ground surface east of the site continues to slope up towards the Federal Way upland area at between 10 and 50 percent. The shoreline bluff slope at the site ranges from 30 to 50 percent with isolated steeper areas, and approximately 45 feet of vertical relief. The slope area was previously terraced in the 1970s' with landscape timbers (railroad ties) with a beach access pathway. We understand that the aging timbers were replaced with masonry block walls with a reconfigured (flatter) pathway several years ago. The slope areas between the walls/path were vegetated with ornamental grasses and shrubs. Because the appropriate permits were not acquired for that work, a violation was issued by the City in 2014, at approximately the same time as you observed portions of the block walls beginning to settle and fail. Currently the block walls have collapsed onto the vegetation and path. As indicated above, the current proposal is to repair the failing bulkhead and regrade the slope area to approximately the 1970s vegetated slope configuration with a reduced beach access path. This will result in a reduction in the amount of impervious surface area. To accomplish this, the failing bulkhead will be repaired to provide lateral support for the upslope area, and the existing wall blocks will be removed from the slope area, as well as the path pavers. Once grading of the slope is complete, a switch -back path using a portion _.of.the existing pavers will be constructed as illustrated on the Site Plan, Figure 2b. There wil be no changes in drainage conditions from the residence or the upper landscape areas. No seepage was observed at the surface of the site at the time of our site visit. Therefore there will be no upslope drainage impacts to the slope area. The pavers are generally considered pervious because of the joint patterns and sand backfill. Site Soils The USDA Natural Resource Conservation Service (NRCS) Web Soil Survey for King County maps the soils underlying the lower portion of the site as Alderwood gravelly sandy loam and Alderwood and Kitsap soils (AkF), and Ragnar fine sandy loam (RaD) in the upper portion of the site. The Alderwood and Kitsap soils are derived from glacial till and/or glacial outwash that form on 25 to 70 percent slopes. These soils are listed as having a "moderate to severe" erosion hazard limitation for building. These soils are listed in hydrologic soils group C. The Ragnar soils are identified as Terrace deposits that occur on slopes of 6 to 15 percent, with a slight to moderate erosion hazard. A copy of the SCS map for the site vicinity is attached as Figure 3. Site Geology The draft Geologic Map of the Tacoma North 7.5-minute Quadrangle, Washington, by Troost, K. G., Booth, D. B., and Borden, R. K. indicates the site underlain by glacial till and deposits with fill material to the south. The till soils were deposited during the Vashon stade of the Fraser Glaciation, some 12,000 to 15,000 years ago. The till deposits consist of poorly sorted, unstratified mixtures of silt, sand and gravel that were deposited below the advancing and receding ice mass. The till was overridden by the ice mass, and as such is considered overconsolidated. These soils are in a very dense condition, and exhibit high strength and low compressibility characteristics where undisturbed. The fill material was likely placed during the early 1900's dudng_a mass_.gga ing_ _ pppration prior to the existing residential development. The fill material appears to consist of mostly sand with variable silt and minor gravel. Since that time, the shallow soils have been The Yoons — 39th PI SW February 3, 2017 Page 3 weathered to a loose to medium dense condition. No areas of landslides or mass wasting are noted on the map within the immediate vicinity of the site. An excerpt of the above referenced map is included as Figure 4. The Department of Ecology Coastal Atlas maps the southeast, upper portion of the site as being "stable," while the area two parcels to the east of the site is mapped as being "unstable." This is likely due to the height and inclinations of the slopes. No areas in the site vicinity are mapped as Uos or Urs. A copy of the Coastal Zone map for the site area is included as Figure 5. Oblique aerial photographs from the Department of Ecology web site for the area are included as figures 6a through 6d. Subsurface Conditions We previously completed two hand auger explorations behind the existing block walls at the site, prior to their failing. The explorations extended from approximately 9 feet to 10 feet below the adjacent ground surface. The soils encountered ranged from 8 to 12 inches of crushed rock, over fine to medium sand with fine gravel and variable silt content. Hand auger HA-2 also encountered a higher silt content to about 5 feet, and a thin silt lens below 5 feet, before encountering the cleaner sand with minor gravel. No evidence of groundwater seepage was observed in HA-2, but minor seepage was encountered in HA-1 at a depth of 7.5 feet, extending to the full depth explored. The location of the hand augers is illustrated on the Site Plan, Figure 2a. The soil classification methodology is provided in Figure 7. Logs of the conditions encountered are included in Figure 8. GEOLOGIC HAZARDS The City of Federal Way Critical Areas Ordinance for Geologically Hazardous Areas (Chapters 15 and 19 within the shoreline area and outside of the shoreline area, respectively) states "geologically hazardous areas shall mean areas that, because of their susceptibility to erosion, landsliding, seismic or other geological events, are not suited to sitting commercial, residential or industrial development consistent with public health or safety concerns." Landslide Hazard Areas per Federal Way Revised Code The Federal Way City Code defines landslide hazard areas as "those areas potentially subject to episodic downslope movement of a mass of soil or rock including but not limited to the following areas: a. Any area with a combination of.- 1. Slopes greater than 15 percent; 2. Permeable sediment overlying a relatively impermeable sediment or bedrock; 3. Springs or groundwater seeps. b. Any area which has shown movement during the Holocene epoch, from 10,000 years ago to the present, or which is underlain by mass wastage debris of that epoch. c. Areas potentially unstable as a result of rapid stream incision, stream bank erosion, and undercutting by wave action. d. Areas located in a canyon or on an active alluvial fan, presently or potentially subject to inundation by debris flows or catastrophic flooding. e. Areas that have a "severe" limitation for building site development because of slope conditions, according to the USDA SCS. The Yoons — 39th PI SW February 3, 2017 Page 4 F. Those areas mapped as Class U (Unstable), Uos (Unstable old slides), and Urs (unstable recent slides) by the Department of Ecology. g. Slopes having a gradient steeper than 80 percent subject to rock fall during seismic shaking" From the above listed indicators we offer the following comments. The slopes on the site are steeper than 15 percent but have no adverse geologic or soil contacts and no evidence of seeps was noted during our site visits. No evidence of recent or Holocene epoch movement is shown on the published geologic map, nor was any evidence of recent landslide activity noted during our site visit. No surface water was observed to be flowing on the site. No area of alluvial fans was noted or was observed on or within the vicinity of the subject site. The Alderwood-Kitsap soils mapped on the lower steeper portion of the site are listed as having a moderate erosion hazard when exposed by the USDA Soil Conservation Service. No areas of Uos or Urs were mapped in the site vicinity. Based on our observations and literature review, the lower portion of the site meets the technical definition of a landslide hazard area because the slope inclination. The site meets no other criteria per the FWRC. Seismic Hazards per Federal Way Revised Code The City of Federal Way Municipal Code defines seismic hazard areas as "those areas subject to severe risk of earthquake damage as a result of seismically induced ground shaking, slope failure, settlement or soil liquefaction, or surface faulting. These conditions occur in areas underlain by cohesionless soils of low density usually in association with a shallow groundwater table." Characterization of soil profile type is required to determine the site class definition. Based on the inferred range of likely Standard Penetration Test (SPT) values encountered in our hand auger explorations, it is our opinion that the project site can be adequately classified as a Site Class D. CONCLUSIONS Based on our site observations, data review, subsurface explorations and experience in the site area, it is our opinion that regrading the slope area to a 2H:1 V or flatter configuration with a shoreline access path can be achieved using conventional construction methods with the existing soils and paver materials at the site. Further, it is our opinion that an active landslide hazard, erosion hazard area, or a seismic hazard area do not exist on or near the site. However, portions of the site do meet the landslide (previous steep slope) hazard criteria. The failing block walls at the site are the result of the failing bulkhead and poor construction techniques. The block walls will be removed from the slope area. The reduction in the paver sitting and path areas will reduce the overall impervious surface area in the shoreline slope area, the goal being to return to or be less than the historic 1970s surface area, less than 495 square feet. Geologic Hazard Criteria - per City of Federal Way Code Erosion Hazards The site soils are mapped as RaD and AkF, which have a slight to moderate erosion hazards when exposed, respectively. Conventional construction BMP's should be installed prior to beginning construction and soil not worked for more 7 days during wet weather conditions should be covered with plastic sheeting or mulch. Temporary erosion control should consist of a silt fence along the downslope side and side slopes of the active The Yoons — 39th PI SW February 3, 2017 Page 5 construction area. Provided standard BMP's are installed rp for to beginning construction, the potential for erosion or sediment leaving the site should be minimal. Permanent mitigation for erosion will consist of the repair of the existing rock bulkhead at the toe of the slope, as well as the revegetation of the slope with native plant species in accordance with the accompanying plan sheet C-3. Soils on the slope will also be amended using one of the three options listed on the accompanying sheet C-4. Landslide Hazards The site has slopes steeper than 15 percent, but no adverse or intersecting contracts are mapped on the site, nor were any seeps or springs noted at the surface at the time of our site visits. No areas of mapped landslide debris or activity were noted on the published USGS geologic map or coastal zone atlas at the site. No areas of alluvial fans are mapped nor were any alluvial fans noted in the vicinity of the site at the time of our past site visits. The site soils (RaD and AkF) as mapped by the USCS have a slight to moderate erosion hazard when exposed. The site is mapped as being stable by the Department of Ecology Coastal Atlas. No areas of historic or recent landslide activity were identified on the Coastal Atlas or the geologic map for the area. The shoreline area two parcels to the east is mapped as unstable by the DOE Coastal Zone Atlas. Based on our observations and literature review, the site does have slopes steeper than 15 and 40 percent. As previously stated, we observed no evidence of active or ongoing landslides hazards were observed on the site or near the site. The failed walls are simply that, not slope failures. It is our opinion that the failed walls are the result of the failing bulkhead, and poor design and construction that was not in accordance with the standards of practice in the Puget Sound area. In our opinion, the site does not constitute an active landslide hazard area. Therefore, no prescriptive buffer should be imposed by the City of Federal Way. Seismic Hazards The Federal Way City Code defines seismic hazard areas as those areas subject to severe risk of earthquake damage as a result of seismically induced ground shaking, slope failure, settlement or soil liquefaction, or surface faulting. These conditions occur in areas underlain by cohesionless soils of low density usually in association with a shallow groundwater table. Based on our observation and the subsurface units mapped at the site, we interpret the structural site conditions to correspond to a seismic Site Class "D" in accordance with Chapter 20 of ASCE 20. This is based on out hand probes within the hand auger holes and the likely range of equivalent SPT (Standard Penetration Test) blow counts for the soil types mapped in the site area, as well as the lack of groundwater. These conditions were assumed to be representative for the conditions based on our experience in the vicinity of the site. These soils are not prone to liquefaction and do not constitute a seismic hazard area. Given the mapped stratigraphy of till deposits, which was overridden by the Vashon stade of the Fraser Glaciation, it is our opinion that the potential for liquefaction is low. Steep Slope Hazards The Federal Way City Code defines steep slope hazard areas as those with a slope of 40 percent or greater with a vertical relief of 10 or more feet, a vertical rise of 10 or more feet for every 25 feet of horizontal distance. Based on our observations the site appears to meet these characterizations in the lower are"'a—oT the exis i ng un permittedlfailin walls. Permanent stabilization of this area will include removing the failing walls, grading the slope in accordance with the "Site Preparation and Grading -Slope Area" section below The Yoons — 39th PI SW February 3, 2017 Page 6 riding the soils on the slope using one of the three options listed on the in accordance accompanying plan sheet C-3. Bulkhead Repair The existing but failing bulkhead at the site will be repaired to provide a toe buttress for the upslope portion of the site. The proposed bulkhead repair will be completed with large angular rockery rock embedded appropriately, with drainage material, separation fabric and chinking. Conventional construction methodology will be utilized for the repair. It is our professional opinion that the failing bulkhead at the shoreline below the site is allowing active erosion as a result of wave and tidal energy, effectively over topping, undercutting and lack of appropriate chinking. The failing bulkhead resulted in the loss of lateral support for the upslope areas where the block walls existed, resulting in them also failing. It is our opinion that without repair, the upslope slope area at the site and on the adjacent properties are at risk of further failure and damage. The proposed rock bulkhead repair will have no adverse impact on the adjacent properties, as they already have bulkheads. In fact, the repaired bulkhead will prevent damage to the adjacent properties and their improvements located in the shoreline area. Site Preparation and Grading - Slope Area The proposed regrading of the slope area on the site will require the removal or stripping of the existing vegetation, organic rich surface soils, and other deleterious materials including existing structures and blocks (wall and pathway). Organic topsoil is not suitable for use as structural fill, but may be used for limited depths in non-structural areas. Stripping depths ranging from 2 to 8 inches should be expected to remove these unsuitable soils. Areas of thicker topsoil or organic debris may be encountered in areas of heavy vegetation or depressions. Where placement of fill material is required, the stripped/exposed subgrade areas should be compacted to a firm and unyielding surface prior to placement of fill material. Excavations for debris removal should be backfilled with structural fill compacted to the densities described in the "Structural Fill" section of this report. We recommend that a member of our staff verifv the exposed subgrade conditions after excavations are complete an rior to placement of structural fill. The exposed subgrade soil shoo[ _ oiled and compacted to a firm and unyiel end` g`co" 1�iRirxft. We recommend that trees be removed by ❑ve u n eas so at a majority of the roots are removed. Excavations for tree stump removal should be backfilled with structural fill compacted to the densities described in the "Structural Fill" section of this report. Soft, loose or otherwise unsuitable areas delineated during proof -rolling or probing should be recompacted, if practical, or over -excavated and replaced with structural fill. The depth and extent of over -excavation should be evaluated by our field representative at the time of construction. The areas of fill should be evaluated during grading operations to determine if they need mitigation; re -compaction or removal. Structural Fill All material placed as fill associated with grading in the slope area should be placed as structural fill. The structural fill should be placed in horizontal lifts of appropriate thickness to allow adequate and uniform compaction of each lift. The fill should be benched into the undisturbed native soils, generally vertical benches of 3 to 4 feet are utilized, with construction starting at the toe of the slope. Fill should be compacted to at least 95 percent The Yoons — 39th PI SW February 3, 2017 Page 7 of MDD (maximum dry density as determined in accordance with ASTM D-1557). The appropriate lift thickness will depend on the fill characteristics and compaction equipment used. We recommend that the appropriate lift thickness be evaluated by our field representative during construction. We recommend that our representative be present during site grading activities to observe t e work and perform field densi tests. e suE a i i y of material for use as structural fill will depend on the gradation and moisture content of the soil. As the amount of fines (material passing a US No. 200 sieve) increases, soil becomes increasingly sensitive to small changes in moisture content and adequate compaction becomes more difficult to achieve. During wet weather, we recommend use of well -graded sand and gravel with less than 5 percent (by weight) passing the US No. 200 sieve based on that fraction passing the 3/4-inch sieve, such as Gravel Backfill for Walls (WSDOT 9-03.12(2)). If prolonged dry weather prevails during the earthwork and foundation installation phase of construction, higher fines content (up to 10 to 12 percent) may be acceptable. Material placed for structural fill should be free of debris, organic matter, trash and cobbles greater than 6-inches in diameter. The moisture content of the fill material should be adjusted as necessary for proper compaction. Suitability of On -Site Materials as Fill During dry weather construction, non -organic on -site soil may be considered for use as structural fill; provided it meets the criteria described above in the "Structural Fill" section and can be compacted as recommended. If the soil material is over -optimum in moisture content when excavated, it will be necessary to aerate or dry the soil prior to placement as structural fill. We generally did not observe the site soils to be excessively moist at the time of our subsurface exploration program. The native recessional outwash soils in the site area generally consist of sand with minor gravel and varying trace amounts of silt. These soils are generally comparable to "sandy pit run" material and will be suitable for use as structural fill provided the moisture content is maintained within 3 percent of the optimum moisture level. In the Puget Sound area, wet weather generally begins about mid -October and continues through about May, although rainy periods could occur at any time of year. Most of the soils at the site appear to contain sufficient fines to produce an unstable mixture when they become over -optimum in moisture. Such soil is highly susceptible to changes in water content and tends to become unstable and difficult or impossible to proof -roll and compact if the moisture content significantly exceeds the optimum. In addition, during wet weather months, the groundwater levels could increase, resulting in seepage into site excavations. Performing earthwork during dry weather would reduce these problems and costs associated with rainwater, construction traffic, and handling of wet soil. We recommend that requirements for wet weather/wet construction for the earthwork portion of the project be incorporated into your contract specifications. Once grading is completed in the slope area, and the paver path is completed, the disturbed areas should be revegetated or otherwise erosion protected, and landscaped as proposed. LIMITATIONS Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted practices in this area at the time this report was prepared. A contingency for unanticipated conditions should be included in the budget and schedule. Sufficient monitoring, testing and consultation should be provided by our firm The Yoons — 39th PI SW February 3, 2017 Page 8 during construction to confirm that the conditions encountered are consistent with those indicated by the explorations, to provide recommendations for design changes should the conditions revealed during the work differ from those anticipated, and to evaluate whether earthwork and foundation installation activities comply with contract plans and specifications. The scope of our services does not include services related to environmental remediation and construction safety precautions. Our recommendations are not intended to direct the contractor's methods, techniques, sequences or procedures, except as specifically described in our report for consideration in design. If there are any changes in the loads, grades, locations, configurations or type of facilities to be constructed, the conclusions and recommendations presented in this report may not be fully applicable. If such changes are made, we should be given the opportunity to review our recommendations and provide written modifications or verifications, as appropriate. The Yoons — 39th PI SW February 3, 2017 Page 9 If you have questions or need additional information please contact us. We hope this satisfies your current needs. Respectfully submitted by, Brad P. Biggerstaff, LEG, LHG Principal 7 BPB:DCB:bpb Docl D:Yoon.39lhPISW.G Ru2 Attachments: Figure 1:Yclnity Map Figure 2a: IOng County Topography with Exploration Locations Figure 21b: Site Plan with Proposed Grading Configuration Figure 2c: Site Aerial -1970 Figure 3: NRCS - SCS Map Figure 4: Geologic Map Figure 5: Coastal Zone Alias Figure 8a-6d: Oblique Aerial Photos Figure 7: Soll Classification Table Figure 8: Hand Auger Logs Dana C. Biggerstaff, PE Sr. Engineer iM 3AliHf7 .-� IL 5 !IY a6t• 13f I . PaUAPLKF VCW O4 Sa 2"'fr. '.Rf qw"r O" ,C .�74ilILT Page[ 50004 I n 7Y! XIISTsi_ _ li NN S Q 9✓y < r ._ `4,• � F� RY a3lTN 9r � A{, � ��iJF.�i+ � � 7{ i' AumiR mmis Iurten`im f/ vu s re .y s 4V.2]rr15T •��' ,,, �... .-� � � i �wiunMSi a. �I j _ r• - ,k„ ;i:Dq'0 A .,�. j-',___ a7�,.::• sw"asaH9f_ : _ ." Ip' Z s, qTA A . 1 -CA " �. �T: q 6 ,� 1p�� SW ]i5ni iT g,l ]Mill Sf��� Illl ilrCMR R 316iI J, •- h 3Hh19r 4%y $fY .11lill rt - SY WIHR y.lir.ra SH { l�hslsP dd!`w f pW 2 m n943,1nitm � aixmrlsa l �_ i`-- • ¢i1=-�=-==__^ '� -_T.y. �. ".�. ssv.?acxn_sr-.— sg-_ _ �__.-.—_ �,.r.� "",�'. �. *MR /Arne -]Are MYk 9 A / ! 81Y )73h115T y r 1 f� ' " :. 1ti ,qs� � (Sw�siN sr`'[ � �I Yrnksr �.� `l �j AederB��k�P�s� y i Q •g I} a V 1'Eill &f �y SM min Sf 41 �filrli B+Y.y_ Qy *Ww" ., h t ` • War v µSI fSL`�rS�"r'!N' r mvvnq :-: `�`.�,�• -;_� ` 'R, �y.PvM s 1 A Eel; Approximate Site Location (Map created from King County iMap http://www.kingcounty.gov/operations/GIS/Maps/iMAP.aspx) GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 Site Vicinity ilrllap Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DoclD: Yoon.39thPISW.F I April 2015 Not to Scale Figure 1 Approximate Site Location (Map created from King County iMap http://www.kingcounty.gov/operations/GIS/Maps/iMAP.aspx) GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 Not to Scale Site Plan & Topography Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DocID: Yoon.39thPISW.F I April 2016 1 Figure 2a Photo dated July 26, 1977 taken from the Washington State Department of Ecology Costal Atlas website (htips://fortress.wa.gov/ecy/coastalatias/tools/ShorePhotos.aspx?photo=KIN0677_117&vintage=1970) GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Ph: (253) 896-1011 Fax: (253) 896-2633 Site Aerial- 1977 Bulkhead and Wall Repair 31008- 39th PI SW Federal Way, Washington DocID: Yoon.39thPISW I April 2015 1 Figure 2c Approximate Site Location rman created frnm the ilsnA Natural Resource Conservation Service Web Soil Survey] Type Soil Soil Name Parent Material Slopes Erosion Hazard Hydrologic Soils Group Cb Coastal beaches - - -I B / D RaD Ra nar fine sandy loam Terrace deposits 6 to 15 Slight to Moderate B AkF Alderwood and Kitsap soils Glacial till and/or outwash 4 -15 Moderate A r►� tr 6 GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 Not to Scale NRCS SCS Soils Map Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DocID: Yoon.39thPISW.F I April 2015 1 Figure 3 Gib A QVt QP49 QPo$, T 21. }" Of as 1 f r � QVI OP L`V Oal C)al QVt 4 Approximate Site Location An excerpt from the draft Geologic Map of the Tacoma North 7.5-minute Quadrangle Pierce County, Washington by Troost K.G., Booth, D.B., and Borden, R.K., (in review) [�f Fill Qb Beach deposits Qvr Recessional outwash Qvt Glacial till Ova Advance outwash Geolkesources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 f f USGS Geologic Map Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DocID: Yoon.39thPISWY April 2015 Not to Scale Approximate Site Location Map created from the Washington State Department of Ecology Coastal Atlas website (https://fortress.wa.gov/ecy/coastalatias) El Drift cells 0 �..r Divergence zone _.► Left to right No appreciable drift Pight to left �.r Undefined GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 13 slope stability 0 �- stable �j Intermediate Modified Unstable l unstable (old slide) Unstable (recent slide) Coastal Zone Atlas Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington Not to Scale DocID: Yoon.39thPISW.F April 2015 Figure 5 Approximate Site Location Photo dated July 26, 2006 taken from the Washington State Department of Ecology Coastal Atlas website {hit s://fortress.wa. ov/ec /coastalatlas/tools/ShorePhotosCom are.as x? hoto=060726 09133&vinta a=2006) GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 Not to Scale Oblique Shoreline Photographs Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DocID: Yoon.39thPISW.F ' April 2015 Figure 6a Approximate Site Location Photo dated September 25, 2000 taken from the Washington State Department of Ecology Coastal Atlas website (htts:lifortress.wa. ovlec /coastalatlas/tools/ShorePhotosCom areas x? hoto=060726 09133&vinta a=2006) GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 Not to Scale Oblique Shoreline Photographs Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DocID: Yoon.39thPISW.F April 2015 Figure 6b Approximate Site Location Photo dated May 19. 1993 taken from the Washington State Department of Ecology Coastal Atlas website (htt s://fortress.wa. ovlec /coastalatlas/tools/ShorePhotosCom areas x? hoto=060726 09133&vinta a=2006) GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 Oblique Shoreline Photographs Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DocID: Yoon.39thPISMF April 2015 I Approximate Site Location Photo dated June 26, 1977 taken from the Washington State Department of Ecology Coastal Atlas website (htts://fortress.wa. ov/ec /coastalatlas/tools/ShorePhotosCom are.as x? hoto=060726 09133&vinta a=2006) GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 Oblique Shoreline Photographs Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington Not to Scale SOIL CLASSIFICATION SYSTEM MAJOR DIVISIONS GROUP SYMBOL GROUP NAME GRAVEL CLEAN GW WELL -GRADED GRAVEL, FINE TO COARSE GRAVEL GRAVEL COARSE GP POORLY -GRADED GRAVEL GRAINED More than 50% SOILS Of Coarse Fraction Retained on No. 4 Sieve GRAVEL WITH FINES GM SILTY GRAVEL GC CLAYEY GRAVEL More than 50% SAND CLEAN SAND SW i WELL -GRADED SAND, FINE TO COARSE SAND Retained on No. 200 Sieve SP POORLY -GRADED SAND More than 50% Of Coarse Fraction SAND SM SILTY SAND Passes WITH FINES No. 4 Sieve SC CLAYEY SAND SILT AND CLAY INORGANIC ML SILT CL CLAY FINE GRAINED ORGANIC OL ORGANIC SILT, ORGANIC CLAY SOILS Liquid Limit Less than 50 f SILT AND CLAY INORGANIC MH SILT OF HIGH PLASTICITY, ELASTIC SILT More than 50% Passes CH CLAY OF HIGH PLASTICITY, FAT CLAY No. 200 Sieve Liquid Limit 50 or more ORGANIC OH ORGANIC CLAY, ORGANIC SILT HIGHLY ORGANIC SOILS PT PEAT NOTES: 1. Field classification is based on visual examination of soil in general accordance with ASTM D2488-90. 2. Soil classification using laboratory tests is based on ASTM D2487-90. 3. Description of soil density or consistency are based on interpretation of blow count data, visual appearance of soils, and or test data. GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 SOIL MOISTURE MODIFIERS: Dry- Absence of moisture, dry to the touch Moist- Damp, but no visible water Wet- Visible free water or saturated, usually soil is obtained from below water table Soil Classification System Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DocID: Yoon.39thPISW.F I April 2015 j Figure 7 Hand Auger HA-1 Location: Lower landing, immediately above bulkhead Approximate Elevation: 8 feet Depth (inches) Soil Type Soil Description 0 - 8 - Crushed rock fill 8 - 96 SW Tan to gray medium SAND with occasional gravel (loose, moist) (void at 68 inches with organics and gravel) 96 - 112 SW Gray medium SAND with occasional gravel and trace of silt (medium dense, saturated) Terminated at 112 inches below ground surface. Caving or minor heave in the bottom 18 inches. Groundwater observed at 96 inches bgs. Hand Auger HA-2 Location: South edge of upper landing, in landscape area Approximate Elevation: 18 feet Depth (inches) Soil Type Soil Description 0 - 14 - Bark and topsoil with roots 14 - 64 SM Gray lightly mottled silty fine sand (medium dense, moist to wet) 64 - 68 ML Lens of gray fine sandy silt (hard, moist) 68 - 117 SW Gray medium sand with trace gravel (loose, moist) Terminated at 117 inches below ground surface. No caving observed. No groundwater seepage observed. STM GeoResources, LLC 5007 Pacific Highway East, Suite 16 Fife, Washington 98424 Phone: 253-896-1011 Fax: 253-896-2633 Excavated on: March 23, 2015 Hand Auger Logs Bulkhead and Wall Repair 31008 - 39th Place SW Federal Way, Washington DocID: Yoon.39thPISW.F October 2016 I Figure 8 City of Federal Way Community Development Dept. 33325 8th Ave S Federal Way, WA 98003 Ph: (253) 835-2607 Fax: (253) 835-2609 Project Name: YOON Project Address: 31008 39TH PL SW Building - Single Family Permit #:16-105953-00-SF Inspection Request Line: (253) 835-3050 Parcel Number: 758200 0070 Project Description: ADD -Remove/ reduce existing tiered landscape paver retaining walls and their footprint built without permits, place native plantings on slope in place of paver retaining wall/pathway and restore path to original condition (reduction of hardening in 50 ft. shoreline residential setback), repair/restack bulkhead away from the OHWM. Setback/restack existing 95' long and 5' tall bulkhead landward of the OHWM. Owner Applicant Contractor Lender HYONGSOP J "JOE" YOON WILLIAM REHELEON SOUND BULKHEAD OWNER IS LENDER 31008 39TH PL SW CONSULTING 2244 MARINE VIEW DR SW FEDERAL WAY WA 98023 8305 DOGWOOD LN NW TACOMA WA 98422 GIG HARBOR WA 98332 USA Census Category: 434 - Residential alt/add - no change in number of units Includes: # 1 #2 #3 #4 Occupancy Class: Construction Type: Occupancy Load: Floor Area (sq. ft.) Additional Permit Information Mechanical to be Included? ..................................... No Is this an Online or O.T.C. application? .................. No Number of Stories ................................................... I Plumbing to be Included? ........................................ No Comprehensive Plan Designation ........................... SF - High -Density Zoning Designation ................................................. RS 9.6 Residential Total Valuation: 42,500.00 No Fixtures Associated With This Permit !! CONDITIONS: 1) Soils shall not be tracked or allowed to wash offsite. Erosion control measures shall be installed as the first step in this permit and maintained throughout the life of the project until the site is finally stabilized. Plans are subject to revision at the discretion of the TESC inspector. 2) Geotechnical engineer of record to be present on site during grading activities to perform filed density tests per geotech. report. Geotechnical engineer to verify subgrade conditions after excavation prior to the placement of structural fill. 3) The applicant shall follow all recommendations contained in the approved critical area/soils report 'Geotechnical Report Update 2, Shoreline Restoration- Bulkhead Repair, 31008 39th Pl. SW' prepared by GeoResources, LLC (revised February 3, 2017). - Recommendation Permanent stabilization of this area will include removing the failing walls, grading the slope in accordance with "Site Preparation grading -slope Area" PERMIT EXPIRES Saturday, 26 August, 2017 Permit Issued on Monday, February 27, 2017 I hereby certify that the above information is correct and that the construction on the above described property and the occupan y and the use will be in accordance with the laws, rules and regulations of the State of Washington an the C y of Federal Way. f Owner or agent: Date: 2 �] I CITY OF �. Federal January 26, 2017 William G. Rehe Jr. Leon Consulting 8305 Dogwood Lane NW Gig Harbor, WA 98332 CITY HALL W�� 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityoffederalway. com Jim Ferrell, Mayor Emailed: rehe!ct,:leonenvironmental.com RE: File #15-102033-AD (ReL Files: 16-105951-SH/16-105953-SF); YOON SLOPE & BULKHEAD REPAIR Geotechnical Peer Review; 31008 391h Place SW, Federal Way Dear Mr. Rehe: Please find the enclosed peer review for 'Geotechnical Report - Upclale 2. Shoreline Restoration - Bitlkhead Repair, 'prepared by GeoResources. The city forwarded your request to our geotechnical consultant, GeoDesign Inc., after receiving the required fees. GeoDesign completed their technical review memorandum on January 20, 2017. The memo contains review comments on pages 3 and 4. Please have GeoResources, LLC submit three (3) copies of a revised report to the Permit Center with the enclosed resubmittal form. Public Works Development Services and Building Division comments will follow under a separate cover for city file no. 16-105953-SF. If you have any questions regarding your third -party review request, please contact me at 253-835-2644 or leila.willoughby-oakes@cityoffederalway.com. Sincerely Leila Willoughby -Oak Associate Planner c: Ann Drover. Senior Engineering Plans Rgvie%ver (�%•fLnc.) Peter Lawrence. Plans Examiner . 0— ,d Hyorigsop 'doe' Yoon. Email: hsivonn cryahon.c n ►►•tenc.) Brad Bi-erstafl: GeoResources LLC_ Email: (w/enc.) enc: GeoDesign Peer Review Memo Project Resubmittal Form I�-10-01;&\D D., I D TJOJ GEORESOURCES earth science & geotechnical engineering 5007 Pacific Hwy E., Suite 16 1 Fife, WA 98424 1 253.896.1011 1 www.georesources.rocks Mr. Joe Yoon 31008-39th Place SW Federal Way, Washington hsjyoon@yahoo.com July 17, 2017 Final Letter —Shoreline Improvements 31008-391h Place SW Federal Way, Washington PN: 7582000070 job: Yoon.39thPISW.FL This letter summarizes our review of the constructed bulkhead and beach access pathway located at 31008-39th Place SW, in Federal Way, Washington. We previously prepared a Site Plan and an a updated Geotechnical Report dated February 3, 2017, in support of Federal Way permit #15- 102033-00-AD. The two documents were approved by Pierce County. We did not perform any inspections during construction. We visited the site on July 14, 2017 after the previously installed, unpermitted, block walls had been removed, and the replacement path and bulkhead had been installed. The construction of the rock bulkhead appeared to have been completed in accordance with the completed design, but because the bulkhead was installed we could not verify embedment depths of the lowest rocks. Appropriately sized rock appeared to have been used per recommendations in our November 26, 2013 letter. The bulkhead appeared to have the appropriate face batter and backfill consisting of course angular rock was used behind the bulkhead. Rock appeared to have been stacked per the guidelines outlined in the Association of Rockery Contractors (ARC) for avoiding continuous joints. Backfill behind the wall appeared consistent with the design submitted as part of the of the building permit application. The beach access path appeared to have been constructed in general accordance with the project plans. The existing path is approximately 2 112 feet wide and utilizes one less switch -back than the original project plan, and is at approximately a 10 to 15 percent grade. The path appears shorter than the path on the approved plans, which decreases the surface area. The slopes in the area of the improvements appear to be generally equal to or less than 2H:1V. The soil on the slopes in the project area have been amended and vegetated in general accordance with plan sheets C-3 and C-4 of the approved plan set. Although many of the plantings are young and small, they appear to be spaced at appropriate intervals, per the approved plans. Provided the observations of the workmanship during our recent post -construction site visit is representative and consistent with the total work completed, it is our opinion that the construction of the replacement bulkhead and beach access path complies with our recommendations and with the approved permit. Yoon.39thPISW. FL.doc July 17, 2017 Page 12 We trust that this letter is sufficient for you current needs, and appreciate the opportunity to be of continued service to you on this project. Should you have need of additional information or services please call. Yours Very Truly, GeoResources, LLC Kyle Billingsley,EIT Brad P. Biggerstaff, LEG Principal KSS:DCB:keb Doc ID: Yoon.39thPISW.FL.doc Attachments: Site Photographs Dana C. Biggerstaff, PE Senior Engineer • .r GEORESOU RCE5 W �'~ :=.�� DESIGN- U Memorandum Page 1 To: Leila Willoughby -Oakes From: Kevin Lamb, P.E. Company: City of Federal Way Date: July 21, 2017 GDI Project: Fed_eralWay-3-01 RE: Yoon Bulkhead File#15-102033-AD reviewed the GeoResources' letter titled "Final Letter - Shoreline Improvements, 31008 39`' Place SW, Federal Way, Washington, PN:7582000070", and dated July 17, 2017. The report summarizes the mitigation of the MSE bulkhead wall that had been illegally constructed on the property. The MSE wall elements were removed and the area was returned to a similar condition prior to the wall construction. We reviewed the photographs in the report and the work appears to have been completed in accordance with the plans. Geotechnical observations that were required as part of the permit were not completed during construction, however, the resulting slopes and rockery type structures generally appear to be less than 4-feet in height, and resulting slopes appear less than 21-1:1 V. The post construction report appears adequate for the completed work. K)L:kt Attachments One copy submitted (via email only) Document ID: External_Memorandum.docx © 2017 GeoDesign, Inc. All rights reserved. y fir" s� 29441 -70NAL 07/21 /17 10700 Meridian Avenue North, Suite 402 1 Seattle, WA 98133 1 206.838.9900 1 www.geodesigninc.com CITY OF L Federal Way November 15, 2017 William Rehe Leon Consulting 8305 Dogwood Lane NW Gig Harbor, WA 98332 Re: File #15-105554-00-VO; YOON SHORELINE VIOLATION 31008 391h Pl. SW, Federal Way Dear Mr. Rehe: FILE CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityofiederalway.. com Jim Ferrell, Mayor Emailed: reheC..Leon-environinental.com In 2017, the Department issued a determination of non -significance, shoreline exemption, and building permit application' at the abovementioned address. The city was notified by King County in 2014 that the owner constructed a series of tiered paver retaining walls along Puget Sound, exceeding 4 feet. The code violations included conducting work within the shoreline without permits and adding new impervious surface within the shoreline setback in excess of the allowable footprint (150 sq. ft. per structure or 300 sq. ft. per lot). Other development included vegetation/tree removal and grading in a geologically hazardous area without a critical area study. Such work within a shoreline or critical area, unless exempted, must be approved by the Community Development Department.3 FINAL INSPECTION On May 3, 2017, planning staff inspected the slope restoration and bulkhead modification with the applicant's biologist William G. Rehe. Contractors also removed the landscaping pavers and relocated the existing bulkhead landward of the ordinary high water mark, making the nonconforming development more conforming as permitted by Federal Way Revised Code (FWRC) 15.05.220. CLOSING The property violation (city file no. 15-105554-00-VO) is hereby closed by the Community Development Department. This letter shall not waive compliance with future City of Federal Way codes, policies, and standards relating to this proposal or future development on the site. Should you have any questions about this letter please contact me at (253) 835-2644, or lei.Ia.willougliby-oakes@cityoffederalwa_y.cotn. Sincerely, Leila Willoughby -Oakes Associate Planner C: Hyongsop `Joe' Yoon, hsivoonru�vahoo.uvm (Owner) 16-105951-SH; 16-105952-00-SE; 16-105953-00-SF Z FWRC 19.105.040 `Development means any human activity consisting of any construction... any human -caused change to land whether at, above, or below ground or water level... Development includes, but is not limited to, any activity that requires a permit or approval under zoning ordinances, subdivision ordinances, building code ordinances, critical areas ordinances, all portions of a shoreline master program, surface water ordinances, planned unit development ordinances, binding site plan ordinances, and development agreements; including but not limited to any activity that requires a building permit, grading permit, shoreline substantial development permit... Development also includes, but is not limited to, filling, grading, paving, dredging, excavation, mining, drilling, bulkheading; driving of piling...' ' FWRC 15.05.020 and FWRC 19.145.015 Doc. LD. 76851 • �A Washington Department of },� Fish & Wildlife 'r HYDRAULIC PROJECT APPROVAL PO Box 43234 Olympia, WA 98504-3234 (360)902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 PERMITTEE Hyongsop (Joe) Yoon 31008 39th PI SW Federal Way, WA 98023 FPA/Public Notice Number: N/A Application ID: 10280 AUTHORIZED AGENT OR CONTRACTOR TI William Rehe 8305 Dogwood Ln NW Gig Harbor, WA 98332-6724 Project Name: Yoon Shoreline Violation Resolution and Bulkhead Repair Project Project Description: The overall goal of this project is to resolve the outstanding shoreline violation with the City of Federal Way and repair and rehabilitate the existing bulkhead. PROVISIONS 1. TIMING LIMITATION: To protect fish and shellfish habitats at the job site, work below the ordinary high water line must occur from February 21, 2017 through MARCH 7, 2017. 2. APPROVED PLANS: Work must be accomplished per plans and specifications submitted with the application and approved by the Washington Department of Fish and Wildlife, entitled YOON SHORELINE VIOLATION RESOLUTION AND BULKHEAD REPAIR, dated AUGUST 2016, except as modified by this Hydraulic Project Approval. You must have a copy of these plans available on site during all phases of the project proposal. NOTIFICATION 3. PRE- AND POST -CONSTRUCTION NOTIFICATION: You, your agent, or contractor must contact the Washington Department of Fish and Wildlife by e-mail at HPAapplications@dfw.wa.gov; mail to Post Office Box 43234, Olympia, Washington 98504-3234; or fax to (360) 902-2946 at least three business days before starting work, and again within seven days after completing the work. The notification must include the permittee's name, project location, starting date for work or date the work was completed, and the permit number. The Washington Department of Fish and Wildlife may conduct inspections during and after construction; however, the Washington Department of Fish and Wildlife will notify you or your agent before conducting the inspection. 4. PHOTOGRAPHS: You, your agent, or contractor must take photographs of the job site before the work begins and after the work is completed. You must upload the photographs to the post -permit requirement page in the Aquatic Protection Permitting System (APPS) or mail them to Washington Department of Fish and Wildlife at Post Office Box 43234, Olympia, Washington 98504-3234 within 30-days after the work is completed. 5. FISH KILL/ WATER QUALITY PROBLEM NOTIFICATION: If a fish kill occurs or fish are observed in distress at the job site, immediately stop all activities causing harm. Immediately notify the Washington Department of Fish and Wildlife of the problem. If the likely cause of the fish kill or fish distress is related to water quality, also notify the Washington Military Department Emergency Management Division at 1-800-258-5990. Activities related to the fish kill or fish distress must not resume until the Washington Department of Fish and Wildlife gives approval. The Washington Department of Fish and Wildlife may require additional measures to mitigate impacts. Page 1 of 7 A Washington Department of Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box43234 ne n�+or Olympia, WA 98504-3234 FISH a a OUDLUT (360) 902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 STAGING, JOB SITE ACCESS AND EQUIPMENT 6. Establish the staging area (used for activities such as equipment storage, vehicle storage, fueling, servicing, and hazardous material storage) in a location and manner that will prevent contaminants like petroleum products, hydraulic fluid, fresh concrete, sediments, sediment -laden water, chemicals, or any other toxic or harmful materials from entering waters of the state. 7. Clearly mark boundaries to establish the limit of work associated with site access and construction. 8. Limit the removal of native bankline vegetation to the minimum amount needed to construct the project. 9. Retain all natural habitat features on the beach larger than twelve inches in diameter including trees, stumps, logs, and large rocks. These natural habitat features may be moved during construction but they must be placed near the preproject location before leaving the job site. 10. Confine the use of equipment to specific access and work corridor shown in the approved plans. 11. Check equipment daily for leaks and complete any required repairs before using the equipment in or near the water. 12. Lubricants composed of biodegradable base oils such as vegetable oils, synthetic esters, and polyalkylene glycols are recommended for use in equipment operated in or near water. 13. Operate vessels with minimal propulsion power to avoid prop scour damage to the bed and marine vegetation habitats. 14. Restrict vessel operation to tidal elevations adequate to prevent propeller related damage to seagrass and kelp. 15. Do not deploy anchors or spuds in seagrass or kelp. 16. Maintain anchor cable tension, set and retrieve anchors vertically, and prevent mooring cables from dragging to avoid impacts to seagrass and kelp. 17. Relocate vessels moored over seagrass between March 21 and September 21 every 4th day to minimize shading of seagrass. CONSTRUCTION -RELATED SEDIMENT, EROSION AND POLLUTION CONTAINMENT 18. Do not conduct project activities when the work area is inundated by tidal waters. 19. Prevent contaminants from the project, such as petroleum products, hydraulic fluid, fresh concrete, sediments, sediment -laden water, chemicals, or any other toxic or harmful materials, from entering or leaching into waters of the state. 20. Use tarps or other methods to prevent treated wood, sawdust, trimmings, drill shavings and other debris from contacting the bed or waters of the state. CONSTRUCTION MATERIALS 21. Do not use native bed material, other than material excavated for bulkhead footings or placement of bulkhead base Page 2 of 7 Washington Department of Fish & Wildlife c HYDRAULIC PROJECT APPROVAL PO Box43234 Olympia, WA 98504-3234 (360) 902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 rock, for project construction or fills. 22. Do not use wood treated with ail -type preservative (creosote, pentachlorophenol) in any hydraulic project. Wood treated with waterborne preservative chemicals (ACZA. ACD) may be used if the Western Wood Preservers Institute has approved the waterborne chemical for use in the aquatic environment. The manufacturer must follow the Western Wood Preservers Institute guidelines and the best management practices to minimize the preservative migrating from treated wood into aquatic environments. To minimize leaching, wood treated with a preservative by someone other than a manufacturer must follow the Field treating guidelines. These guidelines and best management practices are available at www.wwpinstitute.org. BULKHEAD— ROCK 23. Project activities include repairing and rehabilitating the existing bulkhead to resolve the outstanding shoreline violation with the City of Federal Way, as illustrated in your plans, except as modified by this Hydraulic Project Approval. 24. As shown in the approved plans, the length of the new rock bulkhead must not exceed 100 ft. 25. Establish the waterward distance of the rock bulkhead from a permanent benchmark(s) (fixed objects) before starting work on the project. The benchmarks must be located and shown on the approved plans, marked in the field, and protected to serve as a post -project reference for ten years. 26. As specified in the application, the existing rock bulkhead will be restacked landward of OHW (approximately 4-5 ft landward of existing). Rock material from the existing rock bulkhead displaced onto the beach waterward of the existing rock bulkhead toe may be retrieved and re -used in the new rock bulkhead. Native rocks waterward of the existing rock bulkhead toe that did not originate from the existing bulkhead must be left in place on the beach. 27. Bury base rocks a minimum of 18 inches below the preproject natural beach grade. 28. Build the rock bulkhead using clean, angular material of a sufficient durability and size to prevent its being broken up or washed away by high water or wave action. 29. Incorporate all upland drainage tight lines into the bulkhead near beach grade to prevent erosion of the bed. 30. For beach nourishment projects, place sand and gravel on the beach following the provisions below: a. Sand and gravel placed on the beach should be of a composition similar to the on -site bank/bluff material or a sand/gravel mix meeting the following specifications: Sieve Size Percent passing by weight 5/8-inch 100 3/8-inch 90-100 1/1 6-inch 40-50 1/100-inch (.25mm) 0-5 b. Spread the material along the entire length of the bulkhead (100 If) waterward for a distance of 9 lineal feet to a uniform depth of 6 inches. c. Use clean, round gravel, not crushed or angular rock. d. The mix must not contain fine silt or clay type soils. e. The sand and gravel mix must be placed within 72 hours following bulkhead construction. 31. Keep the use of equipment on the beach to a minimum, confined to a single access point, and limited to a 25-foot work corridor waterward of the base rocks. Construction material must not touch the beach outside beach outside this Page 3 of 7 *�A Washington Department of Fish &Wildlife HYDRAULIC PROJECT APPROVAL PO Box43234 ra<n,,o rx�oia Olympia, WA 98504-3234 FLSHa�a R'ILDLUE (360) 902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 work corridor 32. Do not stockpile excavated materials containing silt, clay, or fine-grained soil waterward of the ordinary high water line. 33. You may stockpile sand, gravel, and coarse excavated material waterward of the ordinary high water line provided the material is placed within the 25-foot work corridor waterward of the base rocks. 34. If sand, gravel, and other coarse excavated material is to be temporarily placed where it will come into contact with tidal waters, this material must be covered with filter fabric and adequately secured to prevent erosion and/or potential entrainment of fish. 35. Prior to tidal inundation, backfill all trenches, depressions, or holes created during construction waterward of the ordinary high water line. 36. Remove all stockpiled and excavated material from the beach within 72 hours of bulkhead construction. 37. Reshape beach area depressions created during project activities to preproject beach level upon project completion. DEMOBILIZATION/CLEANUP 38. Remove all trash and unauthorized fill in the project area, including concrete blocks or pieces, bricks, asphalt, metal, treated wood, glass, floating debris, and paper, that is waterward of the ordinary high water line and deposit upland. 39. Remove any riprap (including quarry spalls) scattered, or abandoned outside the original design footprint from the bed and deposit it an upland area above the limits of extreme high tidal water. 40. Remove all debris or deleterious material resulting from construction from the beach area or bed and prevent from entering waters of the state. 41. Do not burn wood, trash, waste, or other deleterious materials waterward of the ordinary high water line. 42. PLANTING REQUIREMENT: The shoreline must be replanted per the planting plan dated AUGUST 2016. Alteration or disturbance of the bank and bank vegetation must be limited to that necessary to construct the project. Within seven calendar days of project completion, all disturbed areas must be protected from erosion using vegetation or other means. Plant riparian vegetation during the first dormant season (late fall through late winter) after project completion. The banks, including the area behind the bulkhead, must be (re)planted using appropriate salt and clay tolerant native species to stabilize the shoreline. Additional planting options are available in the Marine Riparian Vegetation Communities of Puget Sound by James Brennan available at www.pugetsoundnearshore.org/technical_papers/riparian.pdf. Vegetation must be planted at a maximum interval of three feet (on center) and maintained for at least three years to ensure at least eighty percent of the plantings survive. Failure to achieve the eighty percent survival in year three will require you to submit a plan with follow-up measures to achieve requirements or reasons to modify requirements. You must upload the photographs to the post -permit requirement page in the Aquatic Protection Permitting System (APPS) or mail them to Washington Department of Fish and Wildlife at Post Office Box 43234, Olympia, Washington 98504- 3234 within 30-days after the work is completed. Page 4 of 7 �- Washington Department of Fish & Wildlife PO Box 43234 HYDRAULIC PROJECT APPROVAL Olympia, WA 98504-3234 (360) 902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 LOCATION #1: Site Name: Yoon Project Site 31008 39th PI SW, Federal Way, WA WORK START: February 21, 2017 WRIA 10 - Puyallup - White 1/4 SEC: Section: NE 1/4 11 Location ##1 Drivino Directions Wria 10 Marine Township: lunge: 21 N 03 E From Interstate 5: Take S 312th St to SW Dash Point Rd Turn left onto SW Dash Point Rd Turn right to stay on SW Dash Point Rd Turn left to stay on SW Dash Point Rd Turn right onto 39th Ave SW Destination is on the right. FPA/Public Notice Number: N/A Application ID: 10280 WORK END: March 7, 2017 Tributary to Latitude: Longltudf Count : 47.326121-122.382006 King APPLY TO ALL HYDRAULIC PROJECT APPROVALS This Hydraulic Project Approval pertains only to those requirements of the Washington State Hydraulic Code, specifically Chapter 77.55 RCW. Additional authorization from other public agencies may be necessary for this project. The person(s) to whom this Hydraulic Project Approval is issued is responsible for applying for and obtaining any additional authorization from other public agencies (local, state and/or federal) that may be necessary for this project. This Hydraulic Project Approval shall be available on the job site at all times and all its provisions followed by the person (s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work. This Hydraulic Project Approval does not authorize trespass. The person(s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work may be held liable for any loss or damage to fish life or fish habitat that results from failure to comply with the provisions of this Hydraulic Project Approval. Failure to comply with the provisions of this Hydraulic Project Approval could result in a civil penalty of up to one hundred dollars per day and/or a gross misdemeanor charge, possibly punishable by fine and/or imprisonment. All Hydraulic Project Approvals issued under RCW 77.55.021 are subject to additional restrictions, conditions, or revocation if the Department of Fish and Wildlife determines that changed conditions require such action. The person(s) to whom this Hydraulic Project Approval is issued has the right to appeal those decisions. Procedures for filing appeals are listed below. Page 5 of 7 ' 4 Washington Department of Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box 43234 Olympia, WA 98504-3234 (360) 902-2200 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 MINOR MODIFICATIONS TO THIS HPA: You may request approval of minor modifications to the required work timing or to the plans and specifications approved in this HPA unless this is a General HPA. If this is a General HPA you must use the Major Modification process described below. Any approved minor modification will require issuance of a letter documenting the approval. A minor modification to the required work timing means any change to the work start or end dates of the current work season to enable project or work phase completion. Minor modifications will be approved only if spawning or incubating fish are not present within the vicinity of the project. You may request subsequent minor modifications to the required work timing. A minor modification of the plans and specifications means any changes in the materials, characteristics or construction of your project that does not alter the project's impact to fish life or habitat and does not require a change in the provisions of the HPA to mitigate the impacts of the modification. Minor modifications do not require you to pay additional application fees or be issued a new HPA. If you originally applied for your HPA through the online Aquatic Protection Permitting System (APPS), you may request a minor modification through APPS. A link to APPS is at http://wdfw.wa.gov/licensing/hpa/. If you did not use APPS you must submit a written request that clearly indicates you are seeking a minor modification to an existing HPA. Written requests must include the name of the applicant, the name of the authorized agent if one is acting for the applicant, the APP ID number of the HPA, the date issued, the permitting biologist, the requested changes to the HPA, the reason for the requested change, the date of the request, and the requestor's signature. Send by mail to: Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234, or by email to HPAapplications@dfw.wa.gov. Do not include payment with your request. You should allow up to 45 days for the department to process your request. MAJOR MODIFICATIONS TO THIS HPA: You may request approval of major modifications to any aspect of your HPA. Any approved change other than a minor modification to your HPA will require issuance of a new HPA. If you paid an application fee for your original HPA you must pay an additional $150 for the major modification. If you did not pay an application fee for the original HPA, no fee is required for a change to it. If you originally applied for your HPA through the online Aquatic Protection Permitting System (APPS), you may request a major modification through APPS. A link to APPS is at http://wdfw.wa.gov/licensing/hpa/. If you did not use APPS you must submit a written request that clearly indicates you are requesting a major modification to an existing HPA. Written requests must include the name of the applicant, the name of the authorized agent if one is acting for the applicant, the APP ID number of the HPA, the date issued, the permitting biologist, the requested changes to the HPA, the reason for the requested change, the date of the request, payment if the original application was subject to an application fee, and the requestor's signature. Send your written request and payment, if applicable, by mail to: Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234. You may email your request for a major modification to HPAapplications@dfw.wa.gov, but must send a check or money order for payment by surface mail. You should allow up to 45 days for the department to process your request. APPEALS INFORMATION If you wish to appeal the issuance, denial, conditioning, or modification of a Hydraulic Project Approval (HPA), Washington Department of Fish and Wildlife (WDFW) recommends that you first contact the department employee who issued or denied the HPA to discuss your concerns. Such a discussion may resolve your concerns without the need for further appeal action. If you proceed with an appeal, you may request an informal or formal appeal. WDFW encourages you to take advantage of the informal appeal process before initiating a formal appeal. The informal appeal process includes a review by department management of the HPA or denial and often resolves issues faster and with less legal complexity than the formal appeal process. If the informal appeal process does not resolve your concerns, you may advance your appeal to the formal process. You may contact the HPA Appeals Coordinator at (360) 902-2534 for more information. Page 6 of 7 Washington Department of {: Fish & Wildlife HYDRAULIC PROJECT APPROVAL PO Box43234 Olympia, WA 98504-3234 Issued Date: February 21, 2017 Permit Number: 2017-4-100+01 Project End Date: March 07, 2017 FPA/Public Notice Number: N/A Application ID: 10280 (360) 902-2200 A. INFORMAL APPEALS: WAC 220-660-460 is the rule describing how to request an informal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete informal appeal procedures. The following information summarizes that rule. A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request an informal appeal of that action. You must send your request to WDFW by mail to the HPA Appeals Coordinator, Department of Fish and Wildlife, Habitat Program, 600 Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov; fax to (360) 902-2946; or hand -delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor. WDFW must receive your request within 30 days from the date you receive notice of the decision. If you agree, and you applied for the HPA, resolution of the appeal may be facilitated through an informal conference with the WDFW employee responsible for the decision and a supervisor. If a resolution is not reached through the informal conference, or you are not the person who applied for the HPA, the HPA Appeals Coordinator or designee will conduct an informal hearing and recommend a decision to the Director or designee. If you are not satisfied with the results of the informal appeal, you may file a request for a formal appeal. B. FORMAL APPEALS: WAC 220-660-470 is the rule describing how to request a formal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete formal appeal procedures. The following information summarizes that rule. A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request a Formal appeal of that action. You must send your request for a formal appeal to the clerk of the Pollution Control Hearings Boards and serve a copy on WDFW within 30 days from the date you receive notice of the decision. You may serve WDFW by mail to the HPA Appeals Coordinator, Department of Fish and Wildlife, Habitat Program, 600 Capital Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov; fax to (360) 902-2946: or hand -delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor. The time period for requesting a formal appeal is suspended during consideration of a timely informal appeal. If there has been an informal appeal, you may request a formal appeal within 30 days from the date you receive the Director's or designee's written decision in response to the informal appeal. C. FAILURE TO APPEAL WITHIN THE REQUIRED TIME PERIODS: If there is no timely request for an appeal, the WDFW action shall be final and unappealable. Habitat Biologist Laura Arber Laura.Arber@dfw.wa.gov 425-379-2306 for Director M911TOT Page 7 of 7 CIiY OF Federal Way February 9, 2017 CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www.cityoffederalway.com Jim Ferrell, Mayor William G. Rehe Jr. Emailed: relie(@,Ieonenvironmental.com Leon Consulting 8305 Dogwood Lane NW Gig Harbor, WA 98332 RE: File: 16-105953-SF/16-105951-SH, PLANNING COMMENTS Yoon Slope Remediation & Bulkhead Repair, 31008 391h Place SW, Federal Way Dear Mr. Rehe: City staff has reviewed your shoreline exemption and building permit application located at the above address. A review of the materials submitted indicates the following issue must be addressed prior to building permit approval by the Planning and Public Works Development Services Divisions. TECHNICAL COMMENTS • Sheets C4 & C3 - Please revise the proposed soils/TESC details. Soil options #1-3 have merit, but the shoreline is a harsh environment. Please have the biologist review the soil options and pick one. Also, enhance these soil requirements for quicker plant establishment. CLOSING Please submit 3 copies of the requested sheets with the enclosed resubmittal form, clouding all changes. If You have any questions regarding this letter, please contact me at 253-835-2644 or lei la.willoughby- oakes@cilyo-f-federalway.com. Sincerely, Leila Willoughby -Oakes Associate Planner enc: Bulletin #129, Project Resubmittal Form c: Hyongsop 'Joe' Yoon, Email: hslvoon(c).yahoo.eom Ann Dower, Senior Engineering Plans Reviewer Peter Lawrence_ Plans Examiner Doc I D 75366 �c I �.0 -. a�-9(&) 1 4-h V? 7'� January 10, 2017 Leila Willoughby -Oakes, Associate Planner City of Federal Way 33325 8th Avenue South Federal Way, WA 98003-6325 RE: Yoon- Bulkhead Height (SEPA/SH/SF) Dear Willoughby -Oakes, Thank you for your email. I appreciate all your hard work on this project! Soundview determined the Ordinary High Water Marks (OHWM) to be somewhere between 14' to 15' MLLW for Mr. Yoon's property. OHWM varies over the landscape because of natural variation and environmental factors. The easiest way to deal with this variation is to estimate the Ordinary High Water Line (OHWL). This can be done by connecting the individual OHWM to form a line or by averaging the OHWM. Because Soundview's OHW delineation report does not provide the individual elevations, I called Paul Anderson at Ecology to discuss the issue. Mr. Anderson said he would be fine with calling averaging the range of OHWM to calculate the OHWL at 14.5' MLLW. The figure provide by GeoResources shows a generic cross section for the repaired bulkhead. Remember, Mr. Yoon has agreed to relocate his bulkhead landward of OHW to reduce impacts to the upper intertidal zone. Beaches are not flat, but slope both waterward to landward and side to side. So based on the natural slope of the beach, for every increment you relocate a bulkhead landward, you will raise it accordingly. This will give the visual appearance of the bulkhead being taller that the existing bulkhead, when it is not. Using the agreed upon OWHL of 14.5' MLLW, Federal Way Revised Code (FWRC) 15.05.070(6)) would allow the repaired bulkhead to be up to 15.5' MLLW. We are proposing to meet FWRC 15.05.070(6)) or be slightly under the 15.5' MLLW elevation. For reference, the overall height would be similar to the concrete bulkhead on the southern property line. If you have any additional questions or comments please call me at 253-389-0712. Sincerely, Bill Rehe RECEIVED JAN 112017 OW oF FEDERAL WAy CDs January 10, 2017 Leila Willoughby -Oakes, Associate Planner City of Federal Way 33325 8th Avenue South Federal Way, WA 98003-6325 RE: Yoon- Bulkhead Height (SEPA/SH/SF) Dear Willoughby -Oakes, Thank you for your email. I appreciate all your hard work on this project! Soundview determined the Ordinary High Water Marks (OHWM) to be somewhere between 14' to 15' MLLW for Mr. Yoon's property. OHWM varies over the landscape because of natural variation and environmental factors. The easiest way to deal with this variation is to estimate the Ordinary High Water Line (OHWL). This can be done by connecting the individual OHWM to form a line or by averaging the OHWM. Because Soundview's OHW delineation report does not provide the individual elevations, I called Paul Anderson at Ecology to discuss the issue. Mr. Anderson said he would be fine with calling averaging the range of OHWM to calculate the OHWL at 14.5' MLLW. The figure provide by GeoResources shows a generic cross section for the repaired bulkhead. Remember, Mr. Yoon has agreed to relocate his bulkhead landward of OHW to reduce impacts to the upper intertidal zone. Beaches are not flat, but slope both waterward to landward and side to side. So based on the natural slope of the beach, for every increment you relocate a bulkhead landward, you will raise it accordingly. This will give the visual appearance of the bulkhead being taller that the existing bulkhead, when it is not. Using the agreed upon OWHL of 14.5' MLLW, Federal Way Revised Code (FWRC) 15.05.070(6)) would allow the repaired bulkhead to be up to 15.5' MLLW. We are proposing to meet FWRC 15.05.070(6)) or be slightly under the 15.5' MLLW elevation. For reference, the overall height would be similar to the concrete bulkhead on the southern property line. If you have any additional questions or comments please call me at 253-389-0712. Sincerely, Bill Rehe 4ik CITY OF � Federal Way NOTICE OF DETERMINATION OF NONSIGNIFICANCE (DNS) Yoon Slope Remediation & Bulkhead Repair/ File No: 16-105952-00-SE Proposal: Proposed existing bulkhead restacking approximately 100 feet long and 5 feet in height landward of the ordinary high water mark. Other work includes removing landscaping pavers and geologically hazardous area stabilization with vegetation on a site along Puget Sound. Proponent: William G. Relic Jr., 8305 Dogwood Lane NW, Gig Harbor, WA 98332 Location: 31008 39t' Place SW, Federal Way, WA 98023 Lead Agency: City of Federal Way, Community Development Department Staff Contact: Leila Willoughby, Associate Planner, 253-835-2644 Email: Leila.Willoughby-Oakes@cityoffederalway.com The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment, and an environmental impact statement (EIS) is not required under RCW 43.21 C.030(2)(c). This decision was made after review of a completed environmental checklist, Federal Way Comprehensive Plan, and other municipal policies, plans, rules, and regulations designated as a basis for exercise of substantive authority under the State Environmental Policy Act pursuant to RCW 43.31 C.110. This information is available to the public on request. Further information regarding this action is available to the public upon request from the Department of Community Development. This DNS is issued under WAC 197-11-340(2); the lead agency will not act on this proposal for 14 days from the date below. Comments must be submitted by 5:00 p.m. on January 27, 2017. Unless modified by the city, this determination will become final following the above comment deadline. Any person aggrieved of the city's final determination may file an appeal. Anyone may appeal this determination to the Federal Way City Clerk (33325 8`" Avenue South, Federal Way, WA 98003), no later than 5:00 p.m. on February 17, 2017, by a written letter stating the reason for the appeal of the determination. You should be prepared to make specific factual objections. Published in the Federal Way Mirror on January 13, 2017. Doc. LD, 75208 i Yoon Slope Restoration & Bulkhead Repair 31008 39th Pl. SW Vicinity Map Federal y Subject Property Federal Islay This map is intended for use as a graphical representation only. The City of Federal Way makes no warranty to its accuracy. File #16-105951-00-SH & 16-105952-00-SE N 0 220 440 880 Feet Date Prepared: 1/12/2017 Leila Willoughby -Oakes From: Sent: To: Cc: Subject: Importance: Hi Bill, Please resubmit either: Leila Willoughby -Oakes Monday, January 09, 2017 11:43 AM 'Bill Rehe' Ann Dower Yoon- Bulkhead Height (SEPA/SH/SF) Low a) A calculation of the bulkhead height achieving the provision: "Maximum height is 1 foot above elevation of mean higher high water (tidal)/ordinary high" (Standards Table -Federal Way Revised Code (FWRC) 15.05.070(6)); or, b) Revise Sheet C-213 to show the bulkhead, although restacked, will maintain a max. height of 5 ft. (above average building elevation) (approx. same size as the existing). Sheet C-213 shows greater than 5 ft. although the ground I based on site visits, is sloped. The Feb. 2016 OHWM determination by Sound View Consulting determined the OHWM versus the mean higher high water used for height. If the city receives a revision this week, I anticipate the city could issue a DNS on Friday, and staff could proceed with the building permit review and exemption issuance. Kind regards, Leila L. Willoughby -Oakes Associate Planner , e eral Way 33325 8<h Avenue South Federal Way, WA 98003-6325 Phone:253/835-2644 Fax: 253/835-2609 www.cityofFede ra_I_way.com 101 0' LOCATION OF PROPOSED BULKHEAD (BEHIND EXISTING) . r.f I-✓f ,"•l { � r f� -� � 5 1 4. 1 � � ` � fir• �,, ! �:'' -� LOCATION EXISTING OF BULKHEAD GRAPHIC SCALE 0 2.5 g sevlw�- ( IN FEET ) 1 inch z 5 ft. STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office 3190160th SE Bellevue, Washington 98008-5452 (425) 649-7000 March 25, 2016 Hannah Blackstock Soundview Consultants LLC 2907 Harborview Drive, Suite D Gig Harbor, WA 98335 Delivered Electronically RE: Verification of the Ordinary High Water Mark Determination for the Yoon Property Dear Ms. Blackstock: Thank you for providing the Washington State Department of Ecology (Ecology) with a copy of your ordinary high water mark (OHWM) analysis for the Yoon property (dated February 26, 2016) and for taking time to meet with us on March I&. The subject property is located at 31008 39`h Place Southeast in the City of Federal Way (City). Ecology has been assisting City staff in resolving unpen- itted work within shoreline jurisdiction on this site. Establishing the OHWM is a key element in moving forward with resolution of this matter. Based on our recent site visit, I concur with the OHWM as staked by Soundview% Consultants LLC in the field and as depicted in your OHWM analysis. This OHWM determination is consistent with the regulatory definitions found in the Shoreline Management Act (RCW 90.58.030(2)(c)) and implementing rules (WAC 173-22- 030(5)(a)). Thanks again for your assistance with.this project. Please let me know if you have any questions. You may call me at (425) 649-7148 or send an e-mail to aan461 ec..wa. ov. Sincerely, Paul Anderson, PWS Wetlands/401 Unit Supervisor Shorelands and Environmental Assistance Program Hannah Blackstock RE: Yoon OHWM Verification March 25, 2016 Page 2 E-cc: David Pater, Ecology Leila Willoughby -Oakes, City of Federal Way Jeremy Downs and Racheal Villa, Soundview Consultants LLC I—) Soundview Consultants Environmental lusessmem-Planning•Land Uw Solutions 2907 Harbors iew Drive, Suite D Gig Harbor, NV'A 98335 Phone: 253.514.8952 Fax: 253.514.8954 _I R-MEIVED CITY OF FEDErt ,'L GORY Cr) 51 Technical Memorandum To: Leila Willoughby -Oakes, City of Federal Way File Number: 1428.0001 From: Hannah Blackstock, Soundview Consultants LLC Date: February 26, 2016 Re: Ordinary High Water Delineation and Assessment Dear Leila, Soundview Consultants LLC (Soundview) has been hired by Hyongsop Yoon (Applicant) to provide a shoreline assessment on a property located at 31008 39' Place Southeast, Federal Way, Washington. The subject property is located in the Northeast'/4 of Section 11, Township 21, Range 03, W.M. (King County Tax Parcel Number 758200-0070). This Technical Memorandum has been written in order to resolve a prior violation and to document the results of the shoreline assessment conducted by Soundview Consultants LLC. The subject property was investigated to analyze the effects of the violation and to delineate ordinary high water (OHW) on January 29 and February 16, 2016. The OHW mark was determined using definitions provided in RCW 77.55.011 (11) and WAC 220.110.020 (69) and Ecology's guidance as detailed in "Determining the Ordinary High Water Mark on Streams in Washington State" (Olson, 2008). During the January 29' site visit, high tide reached approximately +12.3 feet (MLLW), and during the February 16`' site visit, high tide reached approximately +11.6 feet (MLLW), providing clear visual references to normal peak and mean higher high water (MI-II-IW) elevations to assist in OHW determination. Evidence of OHW marks from adjacent and offsite properties was also used as support in the onsite OHW determination. Prior to the site investigation, background research was conducted using the Washington Department of Fish and Wildlife (WDF\V) Priority Habitat and Species (PHS) database, City of Federal Way Critical Areas Maps, King County iMaps, Washington State Department of Ecology (WSDOE) Coastal Atlas, and U.S. Fish and Wildlife Service (USFWS) maps. The subject property is currently developed with an approximately 3,500 square foot single-family residence and associated infrastructure. The northern property boundary abuts Dumas Bay in Puget Sound. The project proposes to remediate a shoreline violation with the City of Federal Way and restore upland areas damaged by failure of existing retaining walls. 1428.0001 Yoon Property Soundview Consultants LLC Shoreline Violation and Planting Plan 1 February 26, 2016 The initial site investigation consisted of a walk-through survey of all accessible areas within and adjacent to the subject property by Hannah Blackstock, Staff Scientist/Project Manager of Soundview. Five OHW flags were installed (Z-1 through Z-5) along the shoreline. OHW flags were placed according to observed and presumed wave action within interstitial voids of existing rip rap, evidence of soil erosion, and presence of un-eroded leaf detritus. Following discussion with XVSDOE, a second site investigation during a tidal elevation close to MHHW, or 11.8 feet, was deemed necessary. During the second site investigation, the tide reached approximately +11.6 feet R&-LW), 0.2 feet lower than MHT-AV. Peak tides for Dumas Bay are approximately +13.0 feet (MI LW) (the January 14"' king tide reached +12.9 feet (MI -LW)). Wave action has the potential to extend OHW further landward; however, the subject property is located within a relatively protected area of Dumas Bay where little significant wave action occurs except from occasional winter storms. No vegetation or soil was present within 4 to 6 feet of the face of the bulkhead onsite. In fact, there was no soil within the majority of the revetment because soil was undermined from underneath by a highly porous rock wall. All evidence of erosion observed behind the revetment appears to be result of a recent landslide and failure of the rock wall combined with direct precipitation and is located at elevation unlikely to receive any wave action other than minor overspray. As vegetation and soil indicators were not clearly present onsite, offsite conditions and tidal elevations were used to evaluate a conservative OHW estimate. Using an obvious line of eroded soils, undisturbed vegetation, and deposited woody debris observed approximately 100 feet to the west, a clear OHW mark was identified offsite that corresponds to approximately 13.0 feet in elevation. Based upon this off -site observation on an unarmored beach, a waterline observed on a concrete bulkhead immediately to the west, and the observations of tidal elevation, the OHW flags were relocated to the inside edge of the existing rock bulkhead where an angular rock revetment begins. In addition, evidence in support of this OHW determination included: racked woody debris located on the beach at the outer face of the bulkhead, lawn grasses growing up to the face of the adjacent bulkhead to the east, leafy detritus accumulated from autumn present up to the face of the onsite bulkhead. Also, there were no signs of water overtopping the adjacent concrete patio and bulkhead area that is at an elevation of+16 feet (MLLW�. The OHW flags are located approximately 2 to 4 feet landward of external face of the bulkhead onsite. They are located at an elevation of approximately +14 to +15 feet (MLL\V). Please see Appendix A and B for a sketch of flag locations and photographs, respectively. The agreement of OHW location will impact how remediation will be designed to restore the shoreline. Soundview has identified restoration concepts that have been discussed with the Applicant and geotechnical engineer. Once OHW is confirmed by the City of Federal Way, the restoration plan can be prepared for submittal. If you have any further questions please contact me at your earliest convenience. Sincerely, 4LIT4� Hannah Blackstock Soundview Consultants LLC hannah a sound-6eweonsultants.com February 26, 2016 Date 1428.0001 Yoon Property Soundview Consultants LLC Shoreline Violation and Planting Plan 2 February 26, 2016 Appendix A Sketch Map 1428.0001 Yoon Property Soundview Consultants LLC Shoreline Violation and Planting Plan Febmary 26, 2016 �j RE: Gl Rai; -G ` s►- -,w x bN Ot Ar - _ 1 - Of .. r�m4 1428.0001 Yoon Property Soundview Consultants TLC Shoreline Violation and Planting Plan February 26, 2016 PQ- Vcm� DEC 16 2m Ll'IY OF '6 tsDrR-"J- WAY CD Cultural Resource Consultants TECHNICAL MEMO 1602F-1 DATE: February 17, 2016 TO: Joe Yoon FROM: Margaret Berger, Principal Investigator RR Cultural Resources Assessment for the Yoon Bulkhead Project, Federal Way, King County, Washington The attached short report form constitutes our final report for the above referenced project. No evidence of archaeological or historic sites was found in the project location. No further cultural resources investigations are recommended. Please contact our office should you have any questions about our fmdings and/or recommendations. 197 PARFITT WAY SW, SURE 100 PO Box 10668, BAINBRIDGE ISLAND, WA 98110 PHONE 206 855-9020 - infoacrma.com [t-ULTURALRESOURCES REPORT COVER SHEET Author: Sonia Kassa Title of Report: Cultural Resources Assessment for the Yoon Bulkhead Project Federal Way, King County, Washington Date of Report: February 17,2016 County(ies): King Section: 11 Township: 21 N Range: 03 E Quad: Tacoma North, WA (1997) Acres: less than 1 acre PDF of report submitted (REQUIRED) ® Yes Historic Property Inventory Forms to be Approved Online? Ej Yes R No Archaeological Site s /Isolates Found or Amended? ❑ Yes M No TCP(s) found? ❑„Yes E No Replace a draft? ❑ Yes ID No Satisfy a DAHP Archaeological Excavation Permit requirement? Yes # N No Were Human Remains Found? F= Yes DAHP Case # R No DAHP Archaeological Site #: Submission of PDFs is required. • Please be sure that any PDF submitted to DAHP has its cover sheet, figures, graphics, appendices, attachments, correspondence, etc., compiled into one single PDF file. • Please check that the PDF displays correctly when opened. Management Summary This report describes the cultural resources assessment for the Yoon Bulkhead Project, Federal Way, King County, Washington. Joe Yoon requested a cultural resources assessment in support of permitting existing retaining walls, patio, and potential future bulkhead at his property in Federal Way, Washington. This assessment was developed to identify any previously recorded archaeological or historic sites in the project location and to evaluate the potential for the project to affect cultural resources. Background research and field investigations conducted by Cultural Resource Consultants did not result in the identification of any previously unrecorded historic or archaeological sites. No further cultural resources work is recommended. 1. Administrative Data Report Title: Cultural Resources Assessment for the Yoon Bulkhead Project, Federal Way, King County, Washington Author s : Sonja Kassa Re o�te: February 17, 2016 Location. The project is located at 31008 39h Place SW in Federal Way, King County, Washington. Legal Descri Lion: This project is located on King County Tax Parcel 758200-0070. The legal description for the project is in Township 21 North, Range 03 East, Section 11, Willamette Meridian. USGS 7.5' Topographic Ma s ,; Tacoma North, WA (1997) (Figure 1). Total Area Involved: less than 1 acre. Objective (Research Desigpl: This assessment was developed as a component of preconstruction environmental review with the goal of preventing cultural resources from being disturbed during construction of the proposed project by identifying the potential for any as -yet unrecorded archaeological or historic sites within the project area. Cultural Resource Consultants (CRC) work was intended, in part, to assist in addressing state regulations pertaining to the identification and protection of cultural resources (e.g., RCW 27.44, RCW 27.53). The Archaeological Sites and Resources Act (RCW 27.53) prohibits knowingly disturbing archaeological sites without a permit from the Washington State Department of Archaeology and Historic Preservation (DAHP), and the Indian Graves and Records Act (RCW 27.44) prohibits knowingly disturbing Native American or historic graves. Due to the permitting process, DAHP requested an archaeological survey to ensure that no cultural resources are affected during property improvements (Attachment A). CRC's investigations consisted of review of available project information and correspondence provided by Soundview Consultants and Joe Yoon, local environmental and cultural information, CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 1 and historical maps. CRC also contacted cultural resources staff of the Duwamish Tribe, Muckleshoot Indian Tribe, Puyallup Tribe of Indians, and the Suquamish Tribe to inquire about project -related cultural information or concerns (Attachment B). The Squamish Tribe responded that they did not have any specific information to add regarding the proposed project. Any additional information made available subsequent to the submission of this report will be included in a revision of this report. This assessment utilized a research design that considered previous studies, the magnitude and nature of the undertaking, the nature and extent of potential effects on historic properties, and the likely nature and location of historic properties within the project area, as well as other applicable laws, standards, and guidelines (per 36CFR800.4 (b)(1)) (DAHP 2015). Project Description: Joe Yoon requested a cultural resources survey to be used in support of permitting existing retaining walls and patio, and potential future bulkhead repair on his property at 31008 39th PI SW, Federal Way, WA 98335 (Figures 2-5). Recorded Cultural Resources Present: Yes [ ] No [x] No archaeological or historic sites have been previously recorded within the project. 2. Background Research Background research conducted in February 2016. Context Overview: Numerous cultural resources investigations have been prepared by CRC (Berger 2008; Diedrich and Kassa 2012) and other cultural resources firms (Dampf 2005; Daugherty 2006; Flenniken and Trautman 2012; Nelson 1998; Shong and Miss 2006) in the Dumas Bay vicinity. The context presented here summarizes environmental, ethnographic, historical, and archaeological information presented in these reports by reference; archaeological and historic data from DAHP and the Washington Information System for Architectural and Archaeological Records Data (WISAARD) records search; ethnographic resources; geological and soils surveys (e.g., USDA NRCS 2016; WA DNR 2016); and historical maps and documents from Bureau of Land Management United States Surveyor General (USSG) Land Status & Cadastral Survey Records database, HistoryLink, Historic Map Works, HistoricAerials (NETR 2016), University of Washington's Digital Collection, Washington State University's Early Washington Maps Collection, and in CRC's library. Environmental Context: Federal Way is located within the Tsuga heterophylla (Western hemlock) vegetation zone, in the Puget Lowland physiographic province (Franklin and Dyrness 1973). The project is located on a shoreline bluff on the southern shore of Dumas Bay along Puget Sound. To the west is an enclosed lagoon within a near sea level depression and to the east is Joe's Creek located within a ravine that separates the project landform from the bluff to the east. Surface Geology: The surface geology of the project area is mapped as Quaternary (Pleistocene) continental glacial drift (WA DNR 2016). This geologic unit is described as Pleistocene till and outwash clay, silt, sand, gravel, cobbles, and boulders deposited by or CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 2 originating from continental glaciers. Locally this material may consist of peat, non -glacial sediments, modified land, and artificial fill. Manl2ed Soils: Soils mapped in the project area consist of Coastal beaches (USDA NRCS 2016). No depositional profile was provided for this unit. Recent geotechnical testing within the project area conducted by GeoResources (2015) provides the surface and subsurface context for this project. The project area is located on a shoreline bluff that ranges between 30 and 80 percent in slope with approximately 45 feet of vertical relief with areas considered to be unstable. The slope is terraced to provide use and beach access and the existing single-family residence is located near the top of the bluff. Subsurface exploration included two subsurface auger holes reaching 9 to 10 feet in depth. These explorations revealed "8 to 12 inches of crushed rock, over fine to medium sand with fine gravel and variable silt content" (GeoResources 2015:2). Archaeological Context: Thousands of years of human occupation in Puget Sound area have been summarized in a number of archaeological, ethnographic, and historical investigations over the past several decades that provide a regional context for evaluating the project area (e.g., Greengo 1983; Larson and Lewarch 1995; Nelson 1990). Archaeological evidence suggests that as the transition into an ice -free regional landscape allowed the area to be suitable for habitation by approximately 11,000 years ago (Kruckeberg 1991:22). Subsequent changes to landforms, climate, and vegetation influenced the available resources and, consequently, the spatial distribution of human activities. In the Puget Sound, similar to elsewhere, human land use was generally structured around the value of natural resources available in local environments including fresh water, terrestrial and marine food resources, forests, and suitable terrain. Ethnohistoric economies were structured based on seasonally available resources, which translated to seasonal occupation and logistic mobility. Permanent villages were generally established along rivers during the winter, and temporary camps were used while traveling to obtain seasonal food sources during the warmer summer months. Local Indian people shared many broadly defined traditions with their inland Puget Sound neighbors, including subsistence emphasis on salmon and other fish, land game, and a wide variety of abundant vegetable foods as well as household and village communities linked by family and exchange relations (Suttles and Lane 1990). Traditional TerritM: The project area is located within the traditional territory of Southern Lushootseed (Puget Salish) speaking peoples currently represented by the Muckleshoot Indian Tribe (Suttles and Lane 1990:485); however, it is likely that the neighboring Puyallup and Duwamish tribes also made use of this area. The Muckleshoot Tribe comprises groups who traditionally lived and used resources in the Green and White River valleys and adjacent plateaus (Suttles and Lane 1990:Figure 1). The name Muckleshoot is derived from a named place on Muckleshoot Hill, BE'kEkcul, translated as "where a certain medicinal plant grows" (Waterman 2001:171). Here, Muckleshoot Indian Reservation was later established. Ethno a h c Context: Twentieth century ethnographers documented locations of villages and names for resource areas, water bodies, and other cultural or geographic landscape features CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 3 from local informants. Waterman (ca. 1920, 2001) recorded three named places on the Puget Sound shoreline around Dumas Bay and southwestern end of Poverty Bay: • Qa'gahwEts translated as "crabapples," is the name of a "a very small creek at Buenna," south of Redondo Creek (Waterman 2001:75, Table 5.5). • Kokowi'ltsa, translated as "blanket of marmot skins," for a boulder known as Blanket Rock because the surface appeared "folded and crinkled" like a blanket (2001:75). According to Duwamish oral history, this rock originated from a woman running along the beach away from her husband who was turned to stone by the Transformer; her husband threw a marmot blanket over the rock (Waterman 2001:69). • Stsoxwa'bats, translated as "chokecherry," is the name given to a stream west of Blanket Rock, where a low cliff and numerous chokecherry trees were located (Waterman 2001:75). This stream is likely referring to Joe's Creek approximately 0.8 kilometers (km) northeast of the project area. Historic Context: A synopsis of the history of the Federal Way and Dumas Bay area is found in Dampf (2005:8): Euro-American settlement in the area known today as Federal Way began in the 1850s when the U.S. Army constructed a road to move troops from Fort Steilacoom to Seattle in response to the 1855-56 Indian Wars (Historical Society of Federal Way 2002:3). The first road in King County, the Military Road was mainly devoted to military use for the next 20 years but hastened settlement throughout the region. Federal homestead legislation contributed to a steadily increasing population throughout the second half of the 19th-century. Settlers seeking title to public lands in what became King County claimed lands through the 1862 Homestead Act and its subsequent revisions. By 1890, most of the Native American population dispersed from the Federal Way area as Euro- American settlement continued along the shores of Poverty Bay at places such as Stones Landing, known today as Redondo (Historical Society of Federal Way 2000:4; Star Lake Improvement Club 1955:3). Farming was on a relatively small scale; most homesteads grew their own food and crops for their livestock (Historical Society of Federal Way 2000:3). Small steamers carrying mail between Seattle and Tacoma made regular stops offshore (residents had to row out and hail the steamer) at several points along the way, including Dumas Bay, Buenna, and Stones Landing. Logging began in the early 1900s as local operations were established along the shores of Poverty Bay. Most of the virgin timber was hauled to the present site of Salt Water State Park, but there were also operations at Woodmont Beach and Stones Landing (Star Lake Improvement Club 1955:8)... Sawmills were processing the timber within the area only a few years after the first logging operations began, and by 1930, the supply was exhausted ... In 1915, a new, gravel surfaced highway (the Seattle -Tacoma Highway, now known as Pacific Highway South) was built with federal funds and was known as the Federal highway. Community development was slow after logging operations ceased, but attendant CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 4 problems of housing shortages following World War II and the development of Seattle -Tacoma International Airport in 1946 brought an influx of new residents to the area (Star Lake Improvement Club 1955:13). When the city was incorporated in 1990, it became known as the City of Federal Way. Historical Records Search: Review of historical maps and aerial imagery provides an understanding of the land use and ownership of the project parcel. The USSG (1886) map does not depict any annotations in the project vicinity. Joe's Creek is present on the map. Anderson (1907) shows the project area within parcel owned by A. G. Hatring, the parcel was later subdivided and belonged to C. L. Osmond (Kroll 1912, 1926) followed by R. B. Brown (Metsker 1936). The earliest available aerial imagery of the project area is from 1936 at which time the area was forested and undeveloped and SR 509 was present in its current Iocation (NETR 2016). Imagery from 1964, shows that the project and surrounding area had been logged and graded with 39"' and 38 h Ave constructed in preparation for future residences. Over the following decades, the lagoon to the west appears to have been largely filled in and single-family residences continued to be constructed in the local neighborhood. The single-family residence on the project parcel was constructed in 1966 and is outside of the project area (King County 2016). Photographs available on the King County Assessor show that the house has been modernized since construction. DAHP WISAARD: A review of the WISAARD database identified the previous cultural resource studies and recorded precontact and historic sites, which help gauge the potential and likely nature of cultural resources within the project (DAHP 2016). No historic register properties, historic inventory properties, or cemeteries are located within the project vicinity. Seven cultural resources assessments have been conducted within 1.5 kilometers of the project area (Table 1). Only one of these identified previously unrecorded archaeology (Shong and Miss 2006); their findings are discussed below. Two precontact shell midden sites are located on the eastern shore of Dumas Bay. The nearest is 45KI58, located approximately 0.65 km to the east on a north facing bank approximately 100 meters inland and 10 meters above the shoreline and adjacent to Lakota Stream (Moura 1980). This site was estimated to be 25 meters east -west by 7 meters north -south with a depth of 25 centimeters below surface. Site 45KI732, located approximately 1.15 km to the northeast, was identified during a cultural resources assessment for a bulkhead removal project (Shong 2006; Shong and Miss 2006). This site consists of shallowly buried midden deposits (shell, faunal remains, and fire -modified rock) along a wave eroded beach terrace. The dimensions of this site are a 6.5-meter extent along the shoreline and shell lenses up to 10 meters west of the main deposit. Deposits ranged between 15 and 25 centimeters in depth. 3. Archaeological Expectations Archaeological Predictive Model: The DAHP statewide predictive model uses environmental data about the locations of known archaeological sites to identify where previously unknown sites are more likely to be found. The model correlates locations of known archaeological to environmental data "to determine the probability that, under a particular set of environmental conditions, another location would be expected to contain an archaeological site (Kauhi and CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 5 Markert 2009:2-3). Environmental data categories included in the model are elevation, slope, aspect, distance to water, geology, soils, and landforms. According to the model, the project location is ranked as having a high potential for archaeological sites, likely due to its coastal location and proximity to local freshwater streams. Archaeological Expectations: This assessment considers the implications of the predictive model coupled with an understanding of geomorphological context, local settlement patterns, and post - depositional processes to characterize the potential for archaeological deposits to be encountered. The precontact and historic use of the southern shore of Dumas Bay has been documented in in numerous sources discussed above. Despite this and the predictions generated by the DAHP predictive model, the project area is considered to have a lower potential to contain significant (i.e. intact) archaeological deposits for the following reasons: • Soil data indicate the project area has undergone significant geologic disturbance and post -glacial soil development is sparse. Archaeological deposits would be present above glacial deposits, which, due to the paucity of Holocene sedimentary deposition in the project area and vicinity, would be near the present-day ground surface. • No recorded archaeological sites or ethnographically named places were identified within the project area. • Local geomorphology and the mapped depositional context indicated that intact, undisturbed archaeological deposits, if present, would occur on more gently sloping surfaces and would likely be shallowly buried_ Given the nature of the subject property it is likely that potential deposits were disturbed or redeposited by earth moving activities such as residential development or natural costal erosion. • The project area is located on an unstable coastal bluff of extreme relief and has been currently terraced to provide shoreline access from the residence above. Presumably, the use of the project area prior to these developments was likely restricted. 4. Fieldwork Total Area Examined: The entire project (less than 1 acre). Areas not examined: None. Dates of Survey: February 15, 2016 Weather and Surface Visibility: Weather conditions were 50 degrees, overcast, and misty. Mineral soil visibility within the project area was poor and largely obscured by the presence of concrete pavers, retaining walls, landscaping, and fill. Some soil exposures were present in places where the retaining walls were failing. Fieldwork conducted by: Sonja Kassa. Notes are on file with CRC. Fieldwork consisted of surface survey and subsurface testing via hand excavated shovel test probes (STPs). Prior to subsurface testing, the archaeologist conducted a pedestrian survey of the project in an effort to understand the current condition and gauge the potential for as yet CRC Technical Memorandum #160217-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 6 unknown archaeology within the project boundary. The project area consisted of a steep hillside of 45-foot vertical relief that had been cut into approximately five artificial terraces consisting of concrete block retaining walls and pavers, hard armoring and obscuring the surface (Figures 6-8). The retaining walls and adjacent pavers were actively failing and eroding down the hillside. Hillside conditions on the property to the northeast provided insight to the natural conditions that previously characterized the project area (Figure 9). This comparison demonstrated that little if any of the original topography and surface sediments remained intact within the project area. Two STPs were excavated in the northern portion of the project area to observe the subsurface conditions that characterize the project area (Figures 10 and 11; Table 2). The STPs were placed along the eastern margin on the northern and southern comers of the project area where surface armoring was absent. The probes were manually excavated with a shovel and all sediments were passed through 1/4-inch hardware mesh to screen for artifacts. The probes were 30 centimeters in diameter. Native sediments were present in the project area below landscaping beauty bark and fill behind the bulkhead. Observed native sediments consisted of light gray moist unconsolidated fine sand with few gravels; consistent with the mapped soils and geotechnical observations. These probes were negative for archaeological material and were backfilled immediately following documentation. 5. Results Cultural Resources.I_dentified: None. Protect Conclusions Findings and Recommendations: Reconnaissance survey and subsurface testing did not identify any archaeological material or historic sites within the project. Results of background research and field observations indicate a low potential for the project to affect archaeological deposits based on the extreme relief of the project area; evidence that surface deposits have been excavated away during logging and landscaping activity removing any surface or shallowly buried deposits; and proximity to more suitable landforms where local archaeology has been previously identified. CRC recommends that the project proceed without further archaeological oversight. In the unlikely event that ground disturbing or other activities do result in the inadvertent discovery of archaeological deposits (see protocol in Attachment C), work should be halted in the immediate area and contact made with DAHP in Olympia. Work should be halted until such time as further investigation and appropriate consultation is concluded. In the unlikely event of the inadvertent discovery of human remains, work should be immediately halted in the area, the discovery covered and secured against further disturbance, and contact effected with law enforcement personnel. No historic properties affected [x] Historic properties affected [ ] No adverse effect to historic properties [ Adverse effect to historic properties [ ] CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 7 Attachments: Figures [x] Photographs [x] Other [x] Copy of project related correspondence from DAHP. [x] Copies of project related correspondence between CRC and Tribal cultural resources staff. [x] Proposed inadvertent discovery protocol. 6. Limitations of this Assessment No cultural resources study can wholly eliminate uncertainty regarding the potential for prehistoric sites, historic properties or traditional cultural properties to be associated with a project. The information presented in this report is based on professional opinions derived from our analysis and interpretation of available documents, records, literature, and information identified in this report, and on our field investigation and observations as described herein. Conclusions and recommendations presented apply to project conditions existing at the time of our study and those reasonably foreseeable. The data, conclusions, and interpretations in this report should not be construed as a warranty of subsurface conditions described in this report. They cannot necessarily apply to site changes of which CRC is not aware and has not had the opportunity to evaluate. 7. References Anderson Maps Company (Anderson) 1907 Page 3 - Township 21 North, Range 3 East. In Atlas of King County 1907. Electronic document, http://www.histoiicmapworks. com/Map/US/ 1250031 /Page+3+++Township+2l+North+ +Range+3+East/King+County+1907/Washington/, accessed February 10, 2016. Berger, Margaret 2008 Cultural Resources Assessment of the Lakota Wastewater Treatment Plant Outfall Realignment Project, Federal Way, King County, Washington. Cultural Resource Consultants, Inc. Submitted to Grette Associates. Dampf, Steven K. 2005 Archaeological Resources Survey Lakehaven Utility District Lakota Beach Pressure System King County, Washington. Historical Research Associates, Inc. Submitted to Lakehaven Utility District. Daugherty, Richard D. 2006 An Archaeological Survey of Property on the Shore of Dumas Bay, King County, Washington. Submitted to Roger Goodwin. On file at DAHP, Olympia. Diedrich, Melanie, and Sonja Kassa 2012 Cultural Resources Assessment for the Archbishop Brunett Retreat Center Bulkhead and Beach Access Improvements Project, Federal Way, King County, Washington. Cultural CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 8 Resource Consultants, Inc. Submitted to the Corporation of the Catholic Archbishop of Seattle. Flenniken, J. Jeffery, and Pam J. Trautman 2012 Proposed Montgomery/Featherstone Bulkhead Project, 2820 SW 300th Place, Parcel 41660-0140, Federal Way, King County, Washington. Lithic Analysts. Submitted to Pat Montgomery. Franklin, Jerry F., and C. T. Dyrness 1973 Natural Vegetation of Oregon and Washington. USDA Forest Service, Pacific Northwest Forest and Range Experiment Station, General Technical Report PNW-8, GeoResources, Inc. 2015 Geotechnical Summary Report Emergency Exemption Retaining Wall Repair — Support. GeoResources, Inc. Submitted to Joe Yoon. Greengo, Robert E. (editor) 1983 Prehistoric Places on the Southern Northwest Coast. Thomas Burke Memorial Washington State Museum, University of Washington, Seattle. Historical Society of Federal Way 2000 1989 Centennial Calendar. Passages in Time Spring 2000. Historical Society of Federal Way, Federal Way, Washington. Kauhi, T. C., and J. Markert 2009 Washington Statewide Archaeology Predictive Model. Submitted to DAHP, Olympia. GeoEngineers. King County Assessor 2016 Parcel Search. Electronic resource, http://info.kingcounty.gov/Assessor/eRealProperty/Dashboard. aspx?ParceINbr=7582000 070, accessed February 10, 2016. Kroll Map Company 1912 Township 21 N Range 3 E. In Atlas of King County 1912. Electronic document, http://www.historicmapworks. com/Map/tJS/503546/Township+2l+N+Range+3+E/Kin g+County+1912/Washington/, accessed February 10, 2016, 1926 Plate 003 - T. 21 N., R. 3 E., Puget Sound, Commencement Bay, Dumas Bay. In Atlas of King County 1926. Electronic document, http: //www.historicmapworks.comIMap/US/1610873/Plate+003+++T++21+N+++R++3 +E+++Puget+Sound++Commencement+Bay++Dumas+Bay/King+County+1926/Washi ngton/, accessed February 10, 2016. Kruckeberg, A. R. 1991 The Natural History of Puget Sound County. University of Washington Press. Seattle. CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 9 Larson, Lynn L., and Dennis E. Lewarch (editors) 1995 The Archaeology of West Point, Seattle, Washington: 4,000 Years of Hunter -Fisher - Gatherer Land Use in Southern Puget Sound. Larson Anthropological Archaeological Services, Gig Harbor, Washington. Metsker Maps (Metsker) 1936 Township 21 N., Range 3 E., Tacoma, Commencement Bay, Lakota, Adelaide. In Atlas of King County 1936, Electronic resource, http://www.histoiicmapworks.com/MapfUS/126001 I/Township+21+N+++Range+3+E+ ++Tacoma++Commencement+B ay++Lakota++Adelaide/King+County+1936/Washingt on/, accessed February 10, 2016. Moura, Guy 1980 Master Site File, 45KI58. On file at DAHP, Olympia. Nationwide Environmental Title Research, LLC (NETR) 2016 Historic Aerials. Electronic Resource, http://www.historicaerials.com/?javaseript, accessed February 10, 2016. Nelson, Charles M. 1990 Prehistory of the Puget Sound Region. In Handbook of North American Indians, Volume 7. Northwest Coast, edited by Wayne Suttles, pp. 481-484. Smithsonian Institution Press, Washington, D.C. Nelson, Margaret 1998 Heritage Resource Investigations of the Proposed Ventana Development, Federal Way, Washington. Submitted to Wellington -Morns Corporation. Northwest Archaeological Associates, Inc. Shong, Michael 2006 State of Washington Archaeological Site Inventory Form, 45KI732. On file at DAHP, Olympia. Shong, Michael, and Christian J. Miss 2006 Shell Midden Discovery During a Proposed Bulkhead Installation in the Lakota Community of Federal Way, King County, Washington. Northwest Archaeological Associates, Inc. Submitted to Peter Shimer. Star Lake Improvement Club 1955 The Story of Your Community. Star Lake Improvement Club, Star Lake, Washington. Suttles, Wayne, and Barbara Lane 1990 Southern Coast Salish. In Handbook of North American Indians, Volume 7: Northwest Coast, edited by Wayne Suttles, pp. 485-502. Smithsonian Institution Press, Washington, D.C. CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 10 United States Department of Agriculture Natural Resources Conservation Service (USDA NRCS) 2016 Web Soil Survey, Washington. Electronic resource, http://websoilsurvey.nres.usda.gov/app/WebSoilSurvey.aspx, accessed February 10, 2016. United States Surveyor General (USSG) 1868 General Land Office Map, Township 21 N., Range 03 W, Willamette Meridian. Electronic resource, http://www.blm.gov/or/landrecords/survey/yPlatViewl_2.php?path PWA&name=t210n 030e_003.jpg, accessed February 10, 2016. Washington State Department of Archaeology and Historic Preservation (DAHP) 2015 Washington State Standards for Cultural Resources Reporting 2015. On file at DAHP, Olympia. 2016 Washington Information System for Architectural and Archaeological Records Data (WISAARD). Electronic resource, https://secureaccess.wa.gov/dahp/Wisaardp3/, accessed February 10, 2016. Washington State Department of Natural Resources (WA DNR) 2016 Washington Interactive Geologic Map. Division of Geology and Earth Resources — Washington's Geological Survey. Electronic resource, https://fortress.wa.gov/dnr/geology/, accessed February 10, 2016. Waterman, T. T. ca.1920 Puget Sound Geography. Unpublished manuscript, Allen Library, University of Washington, Seattle. 2001 sda?da? gw el dibel lesucid ?acaciltalbixw Puget Sound Geography. Vi Hilbert, Jay Miller, and Zalmai Zahir, contributing editors. Lushootseed Press, Federal Way, Washington. CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 11 s 6— C V T-1 L M,SO4 &101LT ML— L Project Area r= Y H .I��.�x M��1�16�� ��f 1�L•• t Y ^'4 T\ 1r! NATIONAL aW C05 a.,L 0.16 a.zu az_ 03, < 0.5a GEOGRAPHIC�+�yao�f~�!�^; ,. axnen6 Figure 1. USGS Tacoma North, WA (1997) 7.5-minute quadrangle annotated with the general location of the project area in red. CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 12 —crw•a oc0000zes[ uO16ui4SOM 'ADM 10j9paj cb iYF �+ �qi•• MS M Bu 41jaN 001£ wa U ,. sIIoM 6uiuiOaaa uoo,� � w N pNn � fit i i' w 9 w % I w 3 a O tn z J 3 j` ij Stt Y q J p aQ o ow oh a 0 ¢ a ¢00 EVE. gg ' w a v»r J r= I 4 J fl O S 10 / z w --• rho-- � w o lk AWsias IDS •� r N � n �r /r R a f r d � 3 to r e Na +' .-. .. d o� � f a 9 }' y1 s— c 0 LL « `- N d1 0 00 � A 7 a c � m 0 0 0 EU d)CD S cc U - V �O tea` ~a � L UY_ 7 m c 0 O N w O r cv LL o� N OM 47 p c OI CD to ma E -Oa c c m � `0 0 EU rn — Y m _ V U C y V O N a ~ -0 U m CD U t 3 m c 0 0 } 0 s 0 c a� E co N N Ul Q N O V 0 O N N N 7 U I M6 01000OZ99L D31 —slur+ro +e :_ uo16uiysoM '�CoM loJapaj to "w MS 5u 416E-900LC �a U spotsm 6wuioIaa uooA } MHO v � m J a +_ O Q �� �tl8l35,ST r � I V a , Y6rY3s:as—.. i W U � n o, 0 jl I �o -- 1-4 I i s C N E u3 O N U) U, C7 7 O a) w U o!0000zasc Uol_6UI45oM 'A.m lo-paj Uo MS ao�ld 4162-9001£' slloM 6wUloSa8 U00% wmo r,> �.ii i' mow•• N I I 1 MHO I — I 00 I i I <x } I o V J V m N�9135.SS ! 00 - i o 0- 0 < 1 y O CO U u I i U LL 2 wOml I � l c0 3 Figure 6.Overview of the project area looking southwest. Figure 7.Overview of the project area looking west. CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 17 Figure 8.Overview of the southern portion of the project area looking east. Figure 9.Overview of the neighboring property to the east representing the conditions that likely characterized the project area prior to artificial terracing. CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 18 ter. }, .7- - •Yip —}�: - '7=`.'{Si Figure 10. Photograph of STP 1. Figure 11. Photograph of STP 2. CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 19 Table 1. Cultural resources investisations conducted in the Dumas Bav vicinity Author Date Title Results and Recommendations Berger 2008 Cultural Resources No recorded historic sites were present within the project but Assessment of the Lakota one archaeological site had been recorded adjacent to an Wastewater Treatment Plant existing outfall pipeline. Field reconnaissance located the site Outfall Realignment Project, (45KI58); no additional archaeological deposits beyond Federal Way, King County, recorded site boundaries were identified. Ground disturbing Washington project actions were expected to be limited to outside the mapped site boundaries and were not likely to affect cultural resources. However, construction traffic was anticipated on the access road. It was recommended that site boundaries be flagged and protected prior to construction, to ensure that the site was not disturbed. Dampf 2005 Subsurface Archaeological HRA conducted a literature review and an archaeological Survey, Lakehaven Utility resources survey to identify properties that are potentially District, Lakota Beach eligible for listing in the NRHP and that could be affected Pressure System, King during construction activities along the sewer line route. County, Washington Systematic field survey did not identify any archaeological resources that would be affected by the pro'ect. Daugherty 2006 An Archaeological Survey of Based on investigations, no cultural material was found in the Property on the Shore of undisturbed vertical face of the exposed bank, in disturbed Dumas Bay, King County, slump, or on the beach below. If cultural materials were Washington present in the disturbed deposits they would have been of little scientific value, No further cultural resources oversight was recommended. Diedrich 2012 Cultural Resources CRC conducted a cultural resources assessment for a and Kassa Assessment for the bulkhead replacement at The Archbishop Brunett Retreat Archbishop Brunett Retreat Center. No recorded archaeological sites or ethnographically Center Bulkhead and Beach named places were within the project vicinity. Field survey Access Improvements did not result in the identification of potentially significant Project, Federal Way, King cultural resources located within the project area. No further County, WA assessment work was recommended_ Flenniken 2012 Proposed Although one precontact site has been mapped nearby, this and Montgomery/Featherstone study concludes that site 45KI732 is not located within the Trautman Bulkhead Project, 2820 SW project area, which has minimal potential for significant 300d' Place, Parcel 41660- cultural resources. Based on the results of this survey, it was 0140, Federal Way. King determined that no historic properties would be affected, and County_ Washington no further 'investigation was recommended_ Nelson 1998 Heritage Resource None of the debris observed appeared to be associated With a Investigations of the potentially significant historic or prehistoric site. Any Proposed Ventana structures that might have been located on the property may Development, Federal Way, have been razed and most of the debris removed. Although Washington the presence of any extensive sites appeared unlikely based on the results of the survey, it was considered possible that heritage resources not located by the survey could be exposed by land clearing and construction. Shong 2006 Shell Midden Discovery NWAA discovered a precontact shell midden prior to a and Miss During a Proposed Bulkhead proposed bulkhead installation. This site was recorded and is Installation in the Lakota likely eligible for listing on the NRHP under criterion D. It Community of Federal Way, was recommended that the bulkhead replacement plan by King County, Washington. altered to avoid the site. It was recommended that excavation in native sails or along the shoreline be preceded by an archaeological survey. CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 20 T..L�.. 1 0................. #. kl- -,V CTD� -Aff,in +bP nrniar+ hnunrlaiv Probe #Probe Location+ y + Stratigraphic Description (depths are centimeters below Archaeological (WGS84 Zone 10 surface [cmbs]) Materials UTM coordinates, Found +/- 3 meters) 1 0546707 E 0-30: Unconsolidated fine sandy clay wli i angular rocks and None 5241588 N gravels, and concrete fragments (Fill) 30-38: Compact dark brown loamy sand with gravels (buried surface?) 38-75: Uniform unconsolidated grey fine sand with few gravels 2 0546708 E 0-5: Beauty bark None 5241577 N 5-65: Uniform unconsolidated gg fine sand with few gravels CRC Technical Memoranoum PFIWZL --1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 21 Atiaenment A. JUAH]r Aretlaeolo'gicall WARTMENT OF ARCHAEOLOGY & HISTORIC PRESERVATION February 3, 2015 Ms. Leila Willoughby -Oakes Associate Planner City of Federal Way 33325 8th Ave S Federal Way, WA 98003 letter. Allyson Brooks Ph.D., Director State Historic Preservation Officer In future correspondence please refer to: Log: 020315-15 KI Property: Phone/Email Consult for Yoon Site After the fact Permitting for landscaping and bulkhead Re: Archaeology - Survey Requested Dear Ms. Willoughby -Oakes: We have reviewed the materials forwarded to our office for the proposed project referenced above. The area has a high potential for archaeological resources. There is a precontact archaeological site approximately 2,000 feet from the project. The project parcel is depicted on the Statewide Archaeological Predictive Model as having the highest probability for containing precontact archaeological resources. If this project had be reviewed by DAHP prior to implementation, a professional archaeological survey would have been requested. Please be aware that archaeological sites are protected from knowing disturbance on both public and private lands in Washington States. Both RCW 27.44 and RCW 27.53.060 require that a person obtain a permit from our Department before excavating, removing, or altering Native American human remains or archaeological resources in Washington. Failure to obtain a permit is punishable by civil fines and other penalties under RCW 27.53.095, and by criminal prosecution under RCW 27.53.090. Chapter 27.53.095 RCW allows the Department of Archaeology and Historic Preservation to issue civil penalties for the violation of this statute in an amount up to five thousand dollars, in addition to site restoration costs and investigative costs. Also, these remedies do not prevent concerned tribes from undertaking civil action in state or federal court, or law enforcement agencies from undertaking criminal investigation or prosecution. Chapter 27.44.050 RCW allows the affected Indian Tribe to undertake civil action apart from any criminal prosecution if burials are disturbed. We request a professional archaeological survey of the project area bC conducted at this time. The survey should include subsurface methodology that will penetrate the unparmitted impravemenis to sample native swiss. If arcbarciogical resources are identified, a permit from DAHP and mitigation and restoration will be required under RCW 27.53. The survey may take place. at the time of the geotechnical testing so that the gwtech samples may be examined by a professional archaeological. A copy of the completed survey reposl should be submitted to DAIS and the interested Tribes for review prior to permitting so that we can detemdnc if a permit fiotn DAMP and additional archaeological work is required under RCW 27.53. If any federal funds or permits are involved Section 106 of the National Historic Preservation Act, as amended, and its implementing regulations, 36CFR800, must be followed. This is a separate process State of Washington - Department of Archaeology 8 Historic Preservation P.O. Box 48343 - Olympia, Washington 98504-8343 - (360) 586-3065 www.dahp.wa.gov CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 22 from 3EPA and requires Formal goverument-to-govrdninent consultation with the affected Tribes and this agency. We would appreciate receiving any correspondence or "mments from concerned tribes or other parties Wncecning cultura€ lw-wLu ; issuys that you riNxive. Thank You for the opportunity to review this project anti we look forward to receiving the survey report. Should you have any questions, please feel free to contact ma tat f 360) 586-3088 or Gretchen.Kaehler@dahp.wa,gov. Sincerely, Gretchen Kaehler Local Governments Archaeologist (360) 586-3088 grc:tchcn. kacl a I cr�idahp.0 cc. Brandon Reynon, Cultural Regulatory Specialist, Puyallup Tribe Laura Murphy, Archaeologist, Muckleshoot Indian Tribe Dennis Lewarch, TBPO, Suquamish Tribe CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 23 AL _1____ _ T !Y L16Laa.LaLGL1 IJ. %—U] x C71113111 VHUV UUMUCL l.1Cl.. HHU 21rC21 l rloes. Cultural Resource Consultants February 10, 2015 Duwamish Tribe Cecile Hansen, Chairwoman 4705 tiV Marginal Way SW Seattle, WA 98106-1514 Re: Cultural Resources Assessment for the Yoon Bulkhead Project, Federal Way, WA Dear Cecile: I am writing to inform you of a cultural resources assessment for the above referenced project and to seek additional information about the project area the Tribe may have that is not readily available through other written sources. The project is located in Section 11, Township 21 North, Range 03 East Willamette Meridian at 31008 39th Place SW in Federal VL'ay, King County, Washington. Joe Yoon is requesting this survey to be used in support of permitting the existing retaining walls and patio, and potential future bulkhead repair on his property at 31008 39th Place SW in Federal Way. We are in the process of reviewing available information. Background research will include a site files search at the Washington State Department of Archaeology and Historic Preservation, review of previously recorded cultural resource reports, and review of pertinent published literature and ethnographies. Results of our investigations will be presented in a technical memo. We are aware that not all information is contained within published sources. Should the Tribe have additional information to support our assessment, we would very much like to include it in our study. Please contact me should you wish to provide any comments. I appreciate your assistance in this matter and look forward to hearing from you. Sincerely, a�— Sonja Kassa Projects Manager PC) Box 10668, BAINBRIDGE ISLAND, WA 98110 PHONE 206.855.9020 - info@)crcwa.com CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 24 Cultural Resource Consultants February 10, 2015 Muckleshoot Indian Tribe Laura Murphy, Archaeologist/Cultural Resources 39015 172nd Ave SE Auburn, WA 98092 Re: Cultural Resources Assessment for the Yoon Bulkhead Project, Federal Way, WA Dear Laura I am writing to inform you of a cultural resources assessment for the above referenced project and to seek additional information about t1w project area the Tribe may have that is not readily available through other wrilten sources. The project is located in Section 11, Township 21 North, Range 03 East Willamette Meridian at 31008 39th Place SW in Federal Way, King County, Washington. Joe Yoon is requesting this survey to be used in support of permitting the existing retaining walls and patio, and potential future bulkhead repair on his property at 31009 39th Place SW in Federal Way. We are in the process of reviewing available information. Background research will include a site files search at the Washington State Department of Archaeology and Historic Preservation, review of previously recorded cultural resource reports, and review of pertinent published literature and ethnographies. Results of our investigations will be presented in a technical memo. We are aware that not all information is contained within published sources. Should the Tribe have additional information to support our assessment, we would very much like to include it in our study. Please contact me should you wish to provide any comments. I appreciate your assistance in this matter and look forward to hearing from you. Sincerely, aKl- Sonja Kassa Projects Manager PO Box 10668, BAINBRIDGE ISLAND, WA 9B110 PHONE 206.855.9020 - info@crcwa.00n1 CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 25 Cultural Resource Consultants February 10, 2015 Puyallup Tribe of Indians Brandon Reynon 3009 East Portland Ave Tacoma, WA 98404 Re: Cultural Resources Assessment for the Yoon Bulkhead Project, Federal Way, WA Dear Brandon: I am writing to inform you of a cultural resources assessment for the above referenced project and to seek additional information about the project area, the Tribe may have that is not readily available through other written sources. The project is located in Section 11, Township 21 North, Range 03 East Willamette Meridian at 31008 39th Place SW in Federal Way, King County, Washington. Joe Yvon is requesting this survey to be used in support of permitting the existing retaining walls and patio, and potential future bulkhead repair on his property at 31008 39th Place SW in Federal Way. We are in the process of reviewing available information. Background research will include a site files search at the Washington State Department of Archaeology and Historic Preservation, review of previously recorded cultural resource reports, and review of pertinent published literature and ethnographi es. Results of our investigations will be presented in a technical memo. We are aware that not all information is contained within published sources. Should the Tribe have additional information to support our assessment, we would very much like to include it in our study. Please contact me should you wish to provide any comments. I appreciate your assistance in this matter and look forward to hearing from you. Sincerely, Sonja Kassa Projects Manager PO Box 10668, BAINBRIDGE ISLAND, WA 9BI10 PHONE 206.855.9020 - info@Pcrcwa.com CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 26 Cultural Resource Consultants February 10, 2015 Suquamish Tribe Stephanie Trudel PO Box 498 Suquamish, WA 98392-0498 Re: Cultural Resources Assessment for the Yoon Bulkhead Project, Federal Way, WA Dear Stephanie I am writing to inform you of a cultural resources assessment for the above referenced project and to seek additional information about the project area the Tribe may have that is not readily available througb other written sources. The project is located in Section 11, Township 21 North, Range 03 Fast Willamette hleridian at 31009 39th Place SW in Federal Way, King County, Washington. doe Yoon is requesting this survey to be used in support of permitting the existing retaining walls and patio, and potential future bulkhead repair ou his property at 31008 39th Place SW in Federal Way. We are in the process of reviewing available information. Background research will include a site files search at the Washington State Department of Archaeology and Historic Preservation, review of previously recorded cultural resource reports, and review of pertinent published literature and ethnographies. Results of our investigations will be presented in a technical memo. We are aware that not all information is contained within published sources. Should the Tribe have additional information to support our assessment, we would very much like to include it in our study. Please contact me should you wish to provide any comments. I appreciate your assistance in this matter and look forward to hearing from you. Sincerely, a�— Sonja Kassa Projects Manager PO BOX 10669, BAINBRIDGE ISLAND, WA 98110 PHONE 206.855.9020 - infoLPcrmaxom CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 27 Tribal Ilistoric Preservation Officer Fkheiies Delimtinenl 7K),Z+74_Sj14 TIN SUQUAMISH TRIBE PO Bo\ 408 SMyoami5h. IY,i shoq Q8,102 February 11, 2016 Ms. Sonja Kassa Cultural Resource Consultants, Inc. PO Boa 10668 Bainbridge Island, WA 98110 RE: Cultural Resources Assessment for the Yoon Bulkhead Project, Federal Way, Washington Request for Traditional Cultural Property Information Suquamish Tribe Reference: 16-02-11-01 Dear Sonja Thank you for consulting with the Suquamish Tribe regarding CRC's cultural resources assessment for the Yoon Bulkhead Project in Federal Way, Washington. The Tribe does not have any specific concerns or statements about the proposed project at this time. Please contact me at 360-394-8533 or via e-mail at strudel R,,suquaniish.nsn.us as additional project information becomes available. Sincerely, Stephanie E. Trudel Archaeologist Cc: Gretchen Kaehler, Local Government Archaeologist, Washington State Department of Archaeology and Historic Preservation CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 28 Attachment C. Inadvertent discovery protocol. Protocols for Discovery of Archaeological Resources In the event that archaeological resources are encountered during project implementation, the following actions will be taken: In the find location, all ground disturbing activity will stop. The find location will be secured from any additional impacts and the supervisor will be informed. The project proponent will immediately contact the agencies with jurisdiction over the lands where the discovery is located, if appropriate. The appropriate agency archaeologist or the proponent's contracting archaeologist will determine the size of the work stoppage zone or discovery location in order to sufficiently protect the resource until further decisions can be made regarding the work site. The project proponent will consult with DAHP regarding the evaluation of the discovery and the appropriate protection measures, if applicable. Once the consultation has been completed, and if the site is determined to be NRHP-eligible, the project proponent will request written concurrence from the agency or tribe(s) that the protection and mitigation measures have been fulfilled. Upon notification of concurrence from the appropriate parties, the project proponent will proceed with the project. Within six months after completion of the above steps, the project proponent will prepare a final written report of the discovery. The report will include a description of the contents of the discovery, a summary of consultation, and a description of the treatment or mitigation measures. Protocols for Discovery of Human Remains If human remains are found within the project area, the project proponent, its contractors or permit -holders, the following actions will be taken, consistent with Washington State RCWs 68.50.645, 27.44.055, and 68.60.055: If ground -disturbing activities encounter human skeletal remains during the course of construction then all activity will cease that may cause further disturbance to those remains. The area of the find will be secured and protected from further disturbance. The project proponent will prepare a plan for securing and protecting exposed human remains and retain consultants to perform these services. The finding of human skeletal remains will be reported to the county medical examiner/coroner and local law enforcement in the most expeditious manner possible. The remains will not be touched, moved, or further disturbed. The county medical examiner/coroner will assume jurisdiction over the human skeletal remains and make a determination of whether those remains are forensic or non -forensic. If the county medical examiner/coroner determines the remains are non -forensic, then they will report that finding to DAHP, which will then take jurisdiction over the remains. DAHP will notify any appropriate cemeteries and all affected tribes of the find. The State Physical Anthropologist will make a determination of whether the remains are Indian or Non -Indian and report that finding to any CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 29 appropriate cemeteries and the affected tribes. DAHP will then handle all consultation with the affected parties as to the future preservation, excavation, and disposition of the remains. Lead Representative and Primary Contact Duwamish Tribe 4705 W. Marginal Way SW Seattle, WA 98106-1514 Primary Contact: Cecile Hansen, Chairwoman, 206-431-1582 Muckleshoot Indian Tribe 39015 172nd Avenue SE Auburn, WA 98092 Primary Contact: Laura Murphy, Archaeologist, Cultural Resources, 253-876-3272 Puyallup Tribe of Indians 3009 East Portland Avenue Tacoma, WA 98404 Primary Contact: Brandon Reynon, Cultural Resources, 253-573-7986 Suquamish Tribe PO Box 498 Suquamish, WA 98392-0498 Primary Contact: Dennis Lewarch, THPO Cultural Resources, 360-394-8529 Washington Department of Archaeology and Historic Preservation PO Box 48343 Olympia, WA 98504-8343 Lead Representative: Allyson Brooks, State Historic Preservation Officer, 360-586-3066 Primary Contact: Gretchen Kaehler, Local Government Archaeologist, 360-586-3088 Primary Contact for Human Remains: Guy Tasa, State Physical Anthropologist, 360-586-3534 King County Medical Examiner 908 Jefferson Street Seattle, WA 98104 Primary Contact: Richard Harruff, Medical Officer, 206-731-3232 King County Sheriff 516 Third Avenue, Room W-116 Seattle, WA 98104-2312 Primary Contact: John Urquhart, Sheriff, 206-296-3311 CRC Technical Memorandum #1602F-1 Cultural Resources Assessment for the Yoon Bulkhead Project, King County, Washington Page 30 'A6. 11012016 12'40 Rib s.. } mom. *'tea..... �,�, i .� rl► .tar.. t.�; .- v -01,31.•10I2015 12'40 � )mom i �� � ems` i++r..iil�" s: nb� fi � • , �'_ ^ - - • • - AW - l.-rE�•''V Ail q.� `ate- y ' �-s.+ �• -��.. - - - _ .--.-�.;� ter:.:+t - •� 3r��r2016 12:40 r 'i ` December 14, 2016 Leila Willoughby -Oakes Associate Planner City of Federal Way Dept. of Community Development 33325 8th Avenue South Federal Way, WA 98003-6325 aECEI1/ED �! Cs i r aF CosRAL WAY RE: Yoon Shoreline Violation Resolution and Bulkhead Repair Project Dear Mrs. Willoughby -Oakes, Please find the attached application material for the Yoon Shoreline Violation Resolution and Bulkhead Repair Project. We are applying for a shoreline exemption under Washington Administrative Code (WAC) 173-27-040 (2)b. We feel the restoration of the disturbed slope to its previous configuration and the repair and rehabilitation of the existing bulkhead, to restore the structure to a state comparable to its original condition, meets the requirements for an exemption from substantial development permit requirement. The repair of the existing bulkhead is needed to stabilize the toe of the slope so the restoration activities have a stable foundation to prevent movement to the hillside. We feel these repairs will not cause substantial adverse effects to the shoreline resources or environment. The proposed project was designed to reduce existing adverse impacts by restoring and reestablishing previously impacted habitat. The existing, legally established bulkhead was constructed several feet below Ordinary High Water (OHW). We are proposing to restack the damaged and deteriorating rock bulkhead landward of OHW. This will reestablish approximately 300 square feet of upper intertidal habitat. Regrading and replanting the impacted slope with native vegetation will enhance stormwater retention and provide habitat for shoreline birds and wildlife. We are also applying for a SEPA determination with the City of Federal Way. Please find the required material attached. Application Submittal Material 1. A Joint Aquatic Resources Permit Application that contains the information required by FWRC 15.05.140 2. State Environmental Policy Act (SEPA) submittal requirements: We request your review and comments on this proposed project. Please contact me at 253-389-0712 if you have any questions. Thank you for your time and assistance. Sincerely, Bill Rehe r a F %� 73 0 m g�o o $ X 1 ! 1 �m `na nn]',inn n n e 9 .b L c n G MZ n Z bNm O L)Wt^..N�A F� T] oox 4,i M0,4 Z. o 020 ?o p Ln m 3 ai oN Vl o _ 5 1 m o D n r Or c CM: N y D v m vo F o z a Z O v g o' k m 0 D O RN pg�f� o 0 4g 8 gozo 99 m m o. o s ms e]i !1liYA�l h� ?poi nag MM D Z m O =' < m z` m M min o x WF9p C Q Z op^ D emu" Z m M M0 0. M0 w� W Z �m U �M �Z rn 3rn Leila Willoughby -Oakes From: Joe Yoon <hsjyoon@yahoo.com> Sent:Tuesday, September 27, 2016 9:28 PM To: Leila Willoughby -Oakes; 'Rehe@leon-environmental.com' Cc: 'Brad Biggerstaff; 'Keith Schembs' Subject: Re: Geotech Peer Review- Yoon Shoreline Violation Hi, Leila As discussed, I am switching gears and planning to remove the block walls and permit a repair/replacement bulkhead. As you have requested, we are working on getting you a revised geotech report showing the new scope of work, site plans and engineering for the bulkhead. As soon as they are available, Bill and I will be contacting you for an appointment. The last time we spoke, I was informed that there was adequate funds for the peer review and understood that the funds would be used for the new scope of work. I look forward to meeting with you soon. Best regards, Joe From: Leila Willoughby -Oakes <Lei la.Wil loug hb -Oakes cit offaderalwa .com> -environmental.com> To:'Joe Yoon' <hs1yoon@Y2hoo.com>; "'Rehe@leon-environmental.com"' <Rehe[oleon Cc: 'Brad Biggerstaff <BradB aC7.aeoresources.us>; 'Keith Schembs' <KeithS eoresources.us> Sent: Tuesday, September 27, 2016 11:14 AM Subject: Geotech Peer Review- Yoon Shoreline Violation Hello Joe/Bill, Please find the an attached geotechnical peer review of the March 2016 resubmittal. GeoDesign, Inc. was engaged for the initial peer review of a landslide and erosion hazard area evaluation 2015/2014, in addition to the 1st design change after several applicant meetings, and lastly the I had presumed approach proposed by Soundview Consulting to buried ecology blocks/plantings/possibly bolted driftwood (?). A member of Soundview's team did speak with me over the counter and said they were communicating with Joe; however I did not receive confirmation that Joe contracted them. Joe instructed me to pause the peer review, but as you can see there's been changes/time spent by the city and the city's consultant evaluating different proposals. As discussed with Bill the project appears to be changing (a new submittal). GeoDesign (peer reviewer) will need to review the project and project plans again and sign off on them. Planning will let you know if additional review fees are required for GeoDesign's time. The same peer reviewer will be used. The city will create a new peer reviewer task order (Administrative Decision Rle'AD'), as this a new proposal. The good news is, Kevin Lamb conveyed many comments in the Sept. 2016 review memo will apply to a proposal to rehabilitate the shoreline and GHA to its former state. Therefore if the Georesources carefully adopts GeoDesign's comments in a new design and report, this is the best foot forward to remedying the violation and achieving code compliance. Hi Mr. Yoon, I'm writing this email in follow-up to our on -site meeting last week. As I indicated, the work you have done requires City approval. Bulkhead You indicated that you added large rock material to backfill the bulkhead where wave action had eroded the previously existing backfill material. You did not increase the bulkhead in a water -ward direction. You also indicate you did not increase the height of the bulkhead. Based on my visual observations I agree that you did not expand water -ward. The face of the bulkhead has not been increased in height. It's not possible for me to tell if the backfill material is piled higher than the pre -project profile. The bulkhead work appears to fit within the definition of regular maintenance and repair, assuming the structure has not been increased in bulk or height (see below). As such it is considered to be exempt from the need to obtain a shoreline substantial development Permit (SSDP). You must, however, obtain exemption approval from the City. I am enclosing the application form. The City may attach conditions to the exemption approval to ensure the work is conducted in accordance with shoreline regulations. In your submittal package (which I'll discuss in more detail below) you need to confirm that the bulkhead backfill has not increased in height, or identify steps to remove the excess material. Retaining Walls and Walking Path Based on my initial review, these improvements may be exempt from the need to obtain a SSDP. Single- family homes and structures and improvements appurtenant to them are considered to be exempt. Appurtenant structures may include grading up to 250 cubic yards. In your submittal materials please identify the cubic yardage of material excavated for construction of the walls. Regardless of whether the work is exempt, you are limited to 300 square feet of structures within your setback area. The pathway is considered a structure. Typically, the setback is 50-feet from your bulkhead (although in certain circumstances it may be reduced — we can discuss that as necessary). Therefore, within the water -ward 50-feet of your property the pathway and any other buildings or paved areas may not exceed 300 square feet. In your application you need -to depict the setback and show that no more than 300 square feet of structures exist within the setback area. Again, you would need to obtain approval of this exemption of the Shore line regulations from the City. Although the improvements (retaining walls) may be considered exempt form SSDP requirements, they are not exempt from other city code provisions and requirements. Retaining walls and grading of this scope require a building and possibly grading permits. Building permits are required where the work occurs near steep slopes; if determined to be located within geologically hazardous areas or their adjacent buffers. Typically, work within a geologically hazardous area requires review and concurrence from a geotechnical engineer. At the City's discretion, we may also choose to utilize our geotechnical consultant to review the report prepared by your geotechnical engineer. This review would be at applicant's expense. As an alternative to that approach, you could choose to utilize our Direct Services program, where you hire one of our pre -approved geotechnical engineers and we then will not require review of their work. The only issue with using our Direct Services program in your case is that the work has already been done, potentially making it more difficult to form an opinion about its adequacy. We should discuss this topic by phone so I can explain better and we can figure out a solution. Application Packet SSDP Moving forward you need to apply for a shoreline exemption for the improvements you have made. If approved, this will exempt you from needing to obtain a SSDP. With the exemption form, please also submit: • 3 copies of a site plan showing the new improvements and existing improvements on site. ■ A written description of the condition of the area before the work was completed. Discuss if any vegetation or trees were removed. ■ Fee of $105.50 1 am attaching a shoreline exemption request form (the one application can be used to request exemption for both the bulkhead work and the walls) Building Permit You also need to apply for a separate building permit for each of the walls. With the building permits you need to provide a report from a geotechnical engineer pursuant to Federal Way Revised Code (FWRC) 19.160.010. and a building permit application form. Building permit applications require submittal of a completed permit application form, payment of fees based on the value of the work, plans and calculation as appropriate for the job. Contact the Permit Center for fees, and permit submittal requirements. 253-835-2607. A lot of information here. After you've read through this why don't you give me a call to discuss any questions you have. Best, Isaac 253 835 2643 rji (7) zi I I fn ril r) "Q 6! LIP ir, i-, rn L) rqr x c JZ r" M rn rr. its np n 70 c. m X T, LIn me 5' SC-Tf3,ACK Lo J Cl) 0 > -0 rnpZ mc o z a:l 'r fvjfl S,h-"—Jne Pc-t MIMLIM 1, I c 'door 'Shorolr.o Fath C� 21008 •3Tth Placc SW facefal i i J XIqm w.. may... 1�YR�i1Wrc �a4a• � - ('.d.11Tj!NN WlG^6 Ij`` q�.t t� r'i�:ya • r.r I". v�. t- AAA 1., 1 �, ► ail } r� ti 1'!"L T OtA :. � �1 ; r { � � - `� i ;r: . -� . it ■ ! �� + i ■ 7 � � 7; Apr i ; y '.�� • , � � -� 3A, 61, `,, � .�'C i�f. �'. •.�t ��. },,fit. r,,+�yy;� .� � }', Ile.ti.• � _• ;'? a�•+. I op - Ali ]_ • ,. iY jr _ - ��.� I� �; f' .arm-•.c,+,'- .�*j .. tip . i fit • ..�s h �y rry,,.y j. 1 - � 7 � � 7; Apr i ; y '.�� • , � � -� 3A, 61, `,, � .�'C i�f. �'. •.�t ��. },,fit. r,,+�yy;� .� � }', Ile.ti.• � _• ;'? a�•+. I op - Ali ]_ • ,. iY jr _ - ��.� I� �; f' .arm-•.c,+,'- .�*j .. tip . i fit • ..�s h �y rry,,.y j. 1 - � r ,J r. r = IL • :..r . � yy4p�' L AMP .-w 4'J' SPA ,(;e REVISIONS (OCTOBER 2016): 2-FOOT CONTOURS ADDED (11/28/2016): BULKHEAD MOVED LANDWARD, GRADING SHEET, C-2A.1 ADDED CONSTRUCTION SEQUENCE 1. FLAG CLEARING LIMITS AS SHOWN. 2. INSTALL FILTER FENCE. LOCATION OF FILTER FABRIC FENCE IS SHOWN ON PLAN SHEET C-2. 3. REMOVE EXISTING WALLS AND PAVER PATHWAY AS NEEDED. ANY AREA STRIPPED OF VEGETATION, WHERE NO FURTHER WORK IS ANTICIPATED FOR A PERIOD OF 2 DAYS IN THE WET SEASON AND 7 DAYS IN THE DRY SEASON, SHALL BE STABILIZED WITH THE APPROVED EROSION & SEDIMENT CONTROL METHODS, (E.G., SEEDING, MULCHING. NETTING, EROSION & SEDIMENT CONTROL METHODS.). 4. ROUGH GRADE SITE. S. INSTALL PAVER PATHWAY. 6. SEED (OR HYDROSEED) AND MULCH ALL EXPOSED AREAS. SEE AMENDED SOILS SPECIFICATIONS. 7. REMOVE TEMPORARY EROSION CONTROL FACILITIES INCLUDING INLET FILTERS AFTER ENTIRE SITE IS STABILIZED AND THE POTENTIAL FOR EROSION HAS PASSED, BENCHMARK AND DATUM TOPOGRAPHIC AND BOUNDARY INFORMATION HAS BEEN PROVIDED BY THORNTON LAND SURVEYING AND IS BASED ON LIDAR DATA. THIS IS NOT A VERIFIED FIELD SURVEY. LEGEND TOP OF WALL/TOE OF WALL 3 1 S CONCRETE MASONARY UNIT LANDSCAPE WALL FILTER FABRIC FENCING PROPOSED CONTOURS (2s2.0) YOON RESIDENCE Federal Way, Washington SITE ;J cn F�der Dash Point �W Dash Point, State Park The` m-r��l� Y - ... �i'1 F`qCo' At f d�Way Fede' 1 f i .. ... .. ...... .-. .,,... � � L£ is P. t f s , n " - :E - F .. s - SW ' st <,< { Wild Waves Theme Park , Jf 4. 4 PROJECT SUMMARY ITEM AREA UNITS ADDITIONAL NOTES EXISTING TOTAL LOT SIZE 66155 SF 1.52 ACRES AREA WITHIN SO' SHORELINE SETBACK 4954 SF 0.11 ACRES IMPERVIOUS WITHIN SO' SHORELINE SETBACK ORIGINAL 495 SF EXISTING 1,835 SF PROPOSED 495 SF OWNER / DEVELOPER JOE YOON 31008-39TH PLACE SW FEDERAL WAY, WASHINGTON SITE ADDRESS 31008-39TH PLACE SW FEDERAL WAY, WASHINGTON PN: 7582000070 N CONTRACTOR NOTE CIVIL ENGINEER GEORESOURCES, LLC 5007 PACIFIC HWY EAST SUITE 16 FIFE, WA 98424 (253) 896-1011 FAX (253) 896-2633 CONTRACTOR tj ALL EXISTING UTILITIES SHOWN ON PLANS ARE TO BE VERIFIED HORIZONTALLY AND VERTICALLY PRIOR TO ANY CONSTRUCTION. ALL EXISTING FEATURES INCLUDING BURIED UTILITIES ARE SHOWN AS INDICATED ON RECORD MAPS AND SURVEY FURNISHED BY OTHERS. WE ASSUME NO LIABILITY FOR THE ACCURACY OF THOSE RECORDS AND SURVEY, FOR THE FINAL LOCATION OF EXISTING UTILITIES IN AREAS CRITICAL TO CONSTRUCTION CONTACT THE UTILITY OWNER/AGENCY. SHEET INDEX COVERSHEET................................................................................... C-0 ORIGINAL CONDITIONS..................................................................... C-1A EXISTING CONDITIONS..................................................................... C-1B PROPOSED PATH AND BULKHEAD .................................................... C-2A PROPOSED PATH AND BULKHEAD .................................................... C-2A.1 SITESECTION.................................................................................... C-2B VEGETATION PLAN............................................................................. C-3 EROSION CONTROL DETAILS..............................................................C-4 Know whars below. Cali before you dig. SITE P N APPRU AL. Permit Nwnber: Approved By - Date:, SA,gff&-//0jda RECEIVED � DEC .6 2049 M OF FEDERAL WAY CDS APPL/ PERMIT NO's: SHEET No. C-0 -'2 :BOUNDARIES AND M ON SHEET C-lA ARE MED BASED ON KING ITY 1MAP DATA. THIS IS k SURVEY * ALL DIMENSIONS ARE APPROXIMATE AND ARE TO BE FIELD VERIFIED AT THE TIME OF CONSTRUCTION ORIGINAL IMPERVIOUS SURFACE WITHIN THE 50-FOOT SHORELINE SETBACK = 495 SQUARE FEET ORIGINAL CONDITIONS 50' SETBACK LINE GRAPHIC SCALE 20 0 10 p ■ ( IN FEET ) I inch = 20 ft. SITE PLAN APPROVAL Permit Number:�- Approved By: j Date: Comments:-P r rj;�.4 ;pq — I RECEIVED DEC 1.6 2010 CITY OF FEDERAL WAY CDS Know what`s below. Call before you dig. 0 t co rn 00 J N aX 0 Z I 0 • W 0 W c, (� ,.0 M w hQ E3 " n. 0 a Z ua a p�Q N� >p CQ w to a cr- t1 0 LU N O Y r Z aLJ cy w CO V3 Q a 3 U 0 Z c N CL ai 3 n o °° v 0 Q 7) El. tY 0 0 -+-� cn U 0 0 N 0 r-�', 0 --r— IE 0 a) c- c-0 �- 0+-j U)0 O c- i 00 (,n I In c- C)o >1 oo 0 0 0 Q) t= v 4S' 0 CL 0. SHEET TITLE: ORIGINAL CONDITIONS SHEETNO. C-1A 0 i 00 00 J X 0 f � z to I • W c f L 0 � ,t W GRAPHIC SCALE �0 0- 20 0 10 0 r- w Lo S� d { IN FEET ) 1 inch = 20 ft. pWA �t EXISTING PERVIOUS ' PAVER PATIO AREA EXISTING PERVIOUS u v PAVER WALKWAY sjONAL (TO BE REMOVED) tz/� Y U N N m RIP RAP BEHIND EXISTING En L ROCK BULKHEAD o (A o -' GRAVELLED AREA BETWEEN WALLS Q a > 82.41 TO BE REMOVED Uj d�> 94 Ln ¢Z jcz cW 00 4c � LU u: a is All EXISTING DRIVEWAY��7 ' J r °0. s� o 0 0 op EXISTING \ U 00 N RESIDENCE Z 3 ci w LANDING EXISTING BULKHEAD TO BE RELOCATED Q� LANDWARD OF THE OHWM 91 OH WM EXISTING WALL LOCATIONS. (DENOTED WITH DASHED LINE) � o o � N � ) �n �0 .-0 EXISTING PAVER SURFACE WITHIN THE 50-FOOT SITE PLAIN AePKOVAL � � � O SHORELINE SETBACK = 1,838 SQUARE FEET Permit Number: lC� S/(r,�/G �i +' 0 Approved By: 0- N Date:-(f) 00 EXISTING CONDITIONS Co�'����� �� � c co �� 00 0 00� RECEn a) DEC 16 201to -0 N CITY OF FEDERAL WAY U O 0- 0- SHEET 11TLE: ® EXISTING CONDITIONS NOTE: TOPOGRAPHIC AND BOUNDARY INFORMATION * ALL DIMENSIONS ARE Know what's below. HAVE BEEN PROVIDED BY THORNTON LAND APPROXIMATE AND Cal before you dig. SHET "0' SURVEYING AND IS BASED ON LIDAR DATA. THIS IS ARE TO BE FIELD VERIFIED AT C-1B NOT A VERIFIED FIELD SURVEY THE TIME OF CONSTRUCTION 0 t CONSTRUCTION co PROPOSEDAT LIMITS � J (APPROX 495 SF INSIDE OF 50 SETBACK) v Q BULKHEAD TO BE RELOCATED o X U LANDWARD OF OHWM Z 0 Y F CD 4 tj m� 1� 0 SITTING AREA NLn 1 W 282.41` 'r'� OHWM r` aw a- 3 r. �BI 3 � `�j�N'A E ti EXISTING a p- DRIVEWAY �7-1�L EXISTING R S/ / RESIDENCE A' d' ,o J �-► r- o�08 a ipe a o% O 610�•,• �,fL fill 1 \ CID Q_ .P co v a C U N .. O 00 Z O 3 U p O ,0 3 > v A VAI <° a o o a cn 2 s� SITE PLAN - Permit Number: APi'ROVAL 258.59` Approved By: Date: Comments:. SILT FENCE PER DETAIL 1 BELOW SOILS TO BE AMENDED USING ONE OF THE 3 OPTIONS LISTED ON SHEET C-4 n N C �-� o 0 0 0 •_n- co GRAPHIC SCALE � 00 10 0 — S 0 N 00 Ln IN FEET) (- 00 1 inch = 10 ft. 0 CD 0 0 S * ALL DIMENSIONS ARE APPROXIMATE AND ARE TO BE FIELD VERIFIED AT THE TIME CONSTRUCTION NOTES OF CONSTRUCTION Q) EXISTING WALLS AND PAVER PATHWAY WILL BE REMOVED PRIOR TO GRADING THE NOTE: TOPOGRAPHIC AND BOUNDARY N NEW PAVER PATHWAY. NEW PAVER PATHWAY WILL ROUGHLY FOLLOW THE INFORMATION HAVE BEEN PROVIDED BY i-�- THORNTON LAND SURVEYING AND IS � CONTOURS OF THE DEMOLISHED WALLS. A MINIMAL AMOUNT (BETWEEN 30 AND 40 BASED ON LIDAR DATA. THIS IS NOT A YARDS) OF FILL AND TOPSOIL WILL BE NECESSARY TO COMPLETE THE VERIFIED FIELD SURVEY CONSTRUCTION OF THE NEW PATH. SHEET 1nnE: PROPOSED PATH & DEC Ys zor� BULKHEAD CM OF FEDERAL ��- All Know what's below. SHEET No. Call before you dig. C-2A Y 9 0 as o �a J � Zi. Z N W y N g �90a �a (%1 DSO m� � W � SLOPES ABOVE AND BELOW NEW PATH TO BE GRADED AT 2H(HORIZONTAL) TO 1V (VERTICAL) MAXIMUM. CONSTRUCTED FILL SLOPE SHOULD BE CONSTRUCTED BY BENCHING INTO THE EXISTING SLOPE AND BE COMPACTED IN 1-FOOT MAXIMUM LIFTS AMEND ALL DISTURBED SOILS USING ONE OF THE THREE OPTIONS LISTED ON SHEET C-4 AND VEGETATE IN ACCORDANCE WITH THE LANDSCAPE PLAN SHOWN ON C-'3 OF THE 3 OPTIONS LISTED ON SHEET C-4 ,0 0 5 to APProved By:. Date: Comments: IN FTET 1 inch = 10 ft. RECEIVED * ALL DIMENSIONS ARE APPROXIMATE AND DEC 1, 2-016 ARE TO BE FIELD VERIFIED AT THE TIME OF CONSTRUCTION CITY OF FEDERAL WAY CDs NOTE: TOPOGRAPHIC AND BOUNDARY INFORMATION HAS BEEN PROVIDED BY THORNTON LAND SURVEYING AND IS BASED ON LIDAR DATA. THIS IS NOT A VERIFIED FIELD SURVEY. Know what's below. Call before you dig. 0 i co rn 00 2 J U zQ — 0. `` Z I • W 4 LES 0 W U m �00 ` w CL 3 Q O �a: CL D 0 O N V °o � ° � o N N Q M 3 tup _ ., CZ NZ g &i OC a Q a mLU O mW O w Ljj a 2 � a CL ca L m `' vi o o Z 0 C a , .� 3 3 ID 0 U N v 6 n N r 00 0 y �, G M .1 ci v < a` o n° cn c- -4-j U� 0 U O N Q) c- 0 U)0 c 00 �r 0 0 0 L- Q) 0 CL CL SHEET TITLE: GRADING PLAN SHEET NO. C-2A.1 PROPOSED LANDSCAPE AREAS TO BE RE —VEGETATED IN A ACCORDANCE WITH VEGETATION PLAN ON C-3 EXISTING DECK OF RESIDENCE PATIO AND EXISTING PATH AREA (TO BE REMOVED) A n1 EXI STI IU BR) 3 1 \ \ "') 1 \ G c 1 1 11 1001 901 80' 701 60' 501 ------------------ NOTE: TOPOGRAPHIC AND BOUNDARY INFORMATION HAS BEEN PROVIDED BY THORNTON LAND SURVEYING AND IS BASED ON LIDAR DATA. THIS IS NOT A VERIFIED FIELD SURVEY. * ALL DIMENSIONS ARE APPROXIMATE AND ARE TO BE FIELD VERIFIED AT THE TIME OF CONSTRUCTION LEGEND EXISTING GROUND SURFACE PROPOSED GROUND SURFACE EXISTING CONCRETE BLOCK WALL 301 all A' WALLS — LOCATION OF PROPOSED BULKHEAD (BEHIND EXISTING) — LOCATION OF EXISTING BULKHEAD 101 01 SITE PLi-j, v Ai'fJX0VAL Permit Number: Approved By: Date: ^ Comments: �fn — ,..�., GRAPHIC SCALE 5 0 2.5 5 ( IN FEET 1 inch = 5 ft. RECEIVED DEC 1, 6 201i OF FEDERAL WAY CDs Know whams below. Call before you dig. w i c co co M X 0 ii — U_ Z I • W o W ca m co ¢ CD CD n. 0 0 o p a LL d (V Nz vi W a C 9 o C ix D a 0 Z A �N v C� G •=. CL0�o UJ 3 ^, W 3 v 0 � �, N T MM W O ai ,:I o U) c-3� �cf) cL00Q Q) 5 04+ U)Q Q N 00 L c- CA � oo� Q� Q) LL U O CL SHEET TITLE: SI TE SECTION A —A$ SHEETNO. C-2B a 1. FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL AND CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MINIMUM 6" OVERLAP, AND SECURELY FASTENED ON BOTH ENDS TO POST. 2. POSTS SHALL BE A MAXIMUM OF 6' APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 18"). 3. A TRENCH SHALL BE EXCAVATED APPROXIMATELY 8" WIDE AND 12" DEEP ALONG THE LINE OF POSTS AND UPSLOPE FROM THE BARRIER. THIS TRENCH SHALL BE BACKFILLED WITH WASHED GRAVEL. 4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY DUTY WIRE STAPLES AT LEAST 1" LONG, TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4" AND SHALL NOT EXTEND MORE THAN 24" ABOVE THE ORIGINAL GROUND SURFACE. 5. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20" OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN 24" ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. 6. WHEN EXTRA STRENGTH FILTER FABRIC AND CLOSER POST SPACING IS USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POST WITH ALL OTHER PROVISIONS OF ABOVE NOTES APPLYING. 7. FILTER FABRIC FENCES SHALL NOT BE REMOVED BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. 8. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. 9. SILT FENCES WILL BE INSTALLED PARALLEL TO ANY SLOPE CONTOURS. 10. CONTRIBUTING LENGTH TO FENCE WILL NOT BE GREATER THAN 100'. 11. DO NOT INSTALL BELOW AN OUTLET PIPE OR WEIR. 12. INSTALL DOWNSLOPE OF EXPOSED AREAS. 13. DO NOT DRIVE OVER OR FILL OVER SILT FENCES. FILTER FABRIC MATERIAL IN CONTINUOUS ROLLS USE STAPLES OR WIRE RINGS TO ATTACH FABRIC TO WIRE WIRE MESH SUPPORT FENCE FOR FILTER t t FABRIC tt t FILTER FABRIC - tt t (t t P �%\ MIN. 8"X12" t t t t TRENCH -----11-------------------Ji_-__- _ 6 ti MAX f BACKFILL TRENCH WITH l f�► " ; 3J4"-3" WASHED GRAVEL t t t t AND ON BOTH SIDES OF U FILTER FENCE FABRIC 2"X2"X5' WOOD POSTS, STANDARD, OR BETTER SILT FENCE LINE FILTER MATERIAL IN 8"X12" TRENCH AND LEAVE MIN. 2" EXPOSED SCALE:NTS 611 MIN. 2' MIN. 1811 MIN, OPTION 1 - Amend Existing Soils in Place Scarify or till existing subgrade to 4 inches depth (or to depth needed to achieve a total depth of 12 inches of uncompacted soil after calculated amount of amendment is added, see specific subsections below). Entire surface should be disturbed by scarification. Do not scarify within drip line of existing trees to be retained. Within Stormwater Drainage System locations or Landscaped Areas (10 percent organic content) - Place and rototill 3 inches of composted material into 5 inches of soil (a total depth of about 9.5 inches, for a settled depth of 8 inches). As noted previously, subsoils below this layer should be scarified at least 4 inches, for a finished minimum depth of 12 inches of uncompacted soil. Rake beds to smooth and remove rocks larger than 2 inches diameter. Mulch areas with 2 inches of organic mulch. Within Lawn Areas (5 percent organic content) - Place and rototill 1.75 inches of composted material into 6.25 inches of soil (a total amended depth of about 9.5 inches, for a settled depth of 8 inches). As noted previously, subsoils below this layer should be scarified at least 4 inches, for a finished minimum depth of 12 inches of uncompacted soil. Water or roll to compact soil to 85 percent of maximum. Rake to level, and remove surface woody debris and rocks larger than 1 inch in diameter. ON 2 - Stockpile Site Topsoils Prior to Grading for Reapplication If place soil plus compost or other organic material will amount to less than 12 inches: scarify or till subgrade to depth needed to a ve 12 Inches of loo d soil after topsoil and amendment are placed. Entire surface should be disturbed by scarification. Do not scarify in drip line of existing trees to tained. Stockpile and cover soi weed barrier material that sheds moisture yet allows air transmission, in approved locati rior to grading. Replace stockpiled topsoil prior to pla Within Stormwater Drainage Syste cations or Landscaped Areas (10 percent organic content) - Place rototill 3 inches of composted material into 5 inches of replaced soil (a total de p f about 9.5 inches, for a settled depth of 8 inches). Sub ' below this layer should be scarified at least 4 inches, for a finished minim depth of 12 inches of uncompacted soil. Ra eds to smooth and remove rocks larger than 2 inches in diameter. Mulch areas with 2 inches of org ' mulch or stockpiled duff. Within Lawn Areas (5 percent organic content) - Place an otill 1.75 inches of posted material into 6.25 inches of replaced soil (a total amended depth of about 9.5 inches, for a settled depth of 8 inc . Subsoi ow this layer should be scarified at least 4 inches, for a finished minimum depth of 12 inches of uncompacted soil. Water or roll to co soil to 85 percent of maximum. Rake to level, and remove surface woody debris and rocks larger than 1 inch in diameter. OPTION 3 - Zmport Topsoil Meeting Organic Matt ntent Standards Scarify or till subgrade in two directions to ches depth. Entire surface should be disturbed arification. Do not scarify within drip line of existing trees to be retained. Within Stormwater Drainage S locations or Landscaped Areas (10 percent organic content) - Use im ed topsoil mix containing 10 percent organic matter (typically nd 40 percent compost). Soil portion must be sand or sandy loam as defined by t SDA. Place 3 inches of imported topsoil min; rin surfac d till into 2 inches of soil. Place 3 inches of topsoil mix on the surface. Rake smooth and re surface rocks over 2 inches diameter ch planting beds with 2 inches of organic mulch. Within L reas (5 percent organic content) - Use imported topsoil mix containing 5 percent organic matter (typically aroun ercent co ). Soil portion must be sand or sandy loam as defined by the USDA. Place 3 inches of imported topsoil mix on surface and ti 2 inches soil. Water or roll to compact soil to 85 percent maximum. Rake to level, and remove surface rocks larger than 1 inch in diameter. Compost Compost shall be prepared by the controlled decomposition of organic materials. Acceptable feedstocks include, but are not limited to, yard debris, wood waste, land -clearing debris, brush, branches, manure, biosolids, food residuals, and forest byproducts. The product shall have a uniform, dark, soil -like appearance and an earthy loam -like odor. No ammonia or putrid smells shall be present. Minimum organic matter shall be 35 percent (dry -weight basis). Particles shall be 100 percent passing the 1-inch sieve. pH range shall be between 6.0 and 8.5 for wetlands and streamside locations, and 6.0 and 8.0 for other locations. Foreign material shall be no more than 2 percent on a dry -weight or volume basis, whichever provides the least foreign material. Material shall come from a source that is permitted by (or exempt from) Tacoma -Pierce County Health Department (TPCHD) rules. Compost for the approved rates listed above must be Class A compost per Washington State Department of Ecology (Ecology) interim Compost Quality Guidelines (composted materials defined in Washington Administrative Code (WAC) Chapter 173-350 Section 220) or topsoil manufactured from these composts plus sand or sandy soil. Products should be identified on the site development plans and recent product test sheets provided showing that they meet additional requirements for organic matter content and a carbon to nitrogen ratio below 25:1. The carbon to nitrogen ratio may be as high as 35:1 for plantings composed entirely of plants native to the Puget Sound Lowlands region. Utilize alternatives to straw mulch, such as composted mulch or wood -based mulch, for construction erosion and sediment control. Apply compost on slopes instead of hydromulch. Soils amendments should be installed postconstruction, prior to installation of landscaping and turf, unless used as a step in the lot preparation process involving minimal excavation foundation systems. Steep Slope Areas Existing Steep Slope Areas - On -site steep slope areas, which have native soils with robust native landscapes, should be protected from disturbance as a preference to re -grading and augmenting the disturbed soil with soil amendment. Also, steep slope areas may be subject to critical area protection per Title 18E PCC, which outlines criteria for classification of erosion and active landslide hazard areas. Steep slopes that remain on site which are not constructed as part of the development AND where native soils and vegetation is sparse should be amended by planting deep rooting vegetation. Soil amendments shall be applied via a pit application at least twice as wide as the root ball of the vegetation being planted with a mix of 50 percent compost to 50 percent soil mixture. SOIL AMENDMENTS K SCALE: LANllJI;Ai- . i.ti1v J'ermit Number: - Approved By: j`� 1T p X S".'Q'FS r �2 r� -3 c� f 2 0 1 pig p ; Q I cc m J Q x U Z I U � p W 0 U m e Lid � 3 Q� a. 0 0 N N� m� r o N Cl .-- U � V d 0 M 3 •--%, 3 ai > �• c o ° a` o M o 0 C_ U) n-uoo •C: �O O -+-� O 0 = O) r-'-) N 00 C) 1 L in - o0O 00 v SHEET TiTLE. TESC DETAILS SHEET N0. C-4 Comments: Ct I LLS l��7 , -R 6W s(C i 1 CJ