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15-104085
September 14, 2015 Ken Miller, Engineering Manager Lakehaven Utility District PO Box 4249 Federal Way, WA 98063-4249 r Anaiyarsnry V � it Jim Ferrell, Mayor Re: File #15-104085-00-PC, PREAPPLICATION CONFERENCE SUMMARY Lakehaven Sewer Pump Station #33B, APN 292104-9157, Federal Way Dear Mr. Miller: Thank you for participating in the preapplication conference with the City of Federal Way's Development Review Committee (DRC) held September 3, 2015. We hope that the information discussed at that meeting was helpful in understanding the general requirements for your project as submitted. This letter summarizes comments given to you at the meeting by the members of the DRC. The members who reviewed your project and provided comments include staff from the City's Planning and Building Divisions and Public Works Department, and representatives from Lakehaven Utility District and South King Fire and Rescue. Some sections of the Federal Way Revised Code (FWRC) and relevant information handouts are enclosed with this letter. Please be advised, this letter does not represent all applicable codes. In preparing your formal application, please refer to the complete FWRC and other relevant codes for all additional requirements that may apply to your project. The key contact for your project is Matthew Herrera, 253-835-2638, matt.herrera@cityoffederalway.com. For specific technical questions about your project, please contact the appropriate DRC representative as listed below. Otherwise, any general questions about the preapplication and permitting process can be referred to your key contact. PROJECT DESCRIPTION New Lakehaven Utility District sewer pump station, gravity line, and force main improvements in and around S 359"' St and Pacific Hwy S and city -owned parcel 292104-9157. MAJOR ISSUES Outlined below is a summary of the major issues of your project based on the plans and information submitted for preapplication review. These issues can change due to modifications and revisions in the plans. These major issues only represent comments that the DRC consider most significant to your project and do not include the majority of the comments provided. The major issues section is only provided as a means to highlight critical requirements or issues. Please be sure to read the entire department comments made in the next section of this letter. 33325 8th Avenue South, Federal Way, WA 98003-6325 (253) 835-7000 www.cityoffederalway.com Mr. Miller Page 2 September 14, 2015 s Planning Division 1. pdated to reflect recent changes in the Environmentally Critical area reports will need to be u Critical Areas code. 2. Impacts and any needed mitigation to surrounding wetlands and Hylebos Creek from temporary dewatering during construction must be identified and addressed in the critical areas report. s Public Works Development Services Division A right-of-way permit, traffic control plan, erosion control plan, and full -width overlay will be required for the trenching on S 350 Street. Pacific Highway S requirements will be determined when the application is made for a ri a to s Veypermit. t � t. if allowed.is not anticipated on Pacific Highway S and would likely include • Conservation Flow Control and Enhanced Basic Water Quality requirements, as outlined in the 2009 King Cour:ty Surface Wale?. Design Marrzral, will be applied to new impervious surface created by the sewer pump station. At a minimum, Best Management Practices (BMP's) are required to disperse or infiltrate runoff from impervious surfaces. ■ Building Division I. Building permits are requircd. ans required for concrete equipment pads. 2. Stamped engineer pl DEPARTMENT COMMENTS ents made by the representatives of each department present at the outlined below are the commease contact preapplication conference. Each section should be read thoroughly. If you have questions, p the representative listed for that section, PLANNING DIVISION (Matthew Herrera, 253-835-2638, matt.herrera@cityoffe.deralway.com) . 1. Comprehensive Plan and Zoning Designation — The pump station is located on a City of Federal Way parcel zoned Single -Family Medium Density Residential (RS35.0). Public utility uses are permitted in this zone. 2. Use Application &Partial Exemptions —Relocating the pump station to the S. 35'0' Street frontage is considered a substantial or major improvement to a developed site that is not exempt from SEPA review. Therefore, pursuant to FWRC 19.15.030(2) or (3) a Use Process III application will be required. The application will be reviewed for compliance with use specific regulations set forth in FWRC 19.200.140, environmentally critical areas, and other applicable city codes and policies. on work with environmentally critical areas can be reviewed administratively Approval for constructi to partial exemption requirements set forth in FWRC 19.145.120(1) if no practical pursuantorder to qualify with less impact exists. In for partial exemption criteria, the intrusions alternative into critical areas must constitute the minimum necessary and the needed intrusions must how the project meets these criteria must be included with the their impacts. A narrative identifying application. See item #4 for critical area report and mitigation requirements. Doc. I D. 70563 15-104085 Mr. Miller Page 3 September 14, 2015 State Environmental Policy Act (SEPA) — The improvements are not exempt from SEPA as sewer lines extending outward of the pump station are in excess of 12 inches in diameter pursuant to 197- 11-800(23)(b). If Lakehaven chooses, the Community Development Department can prepare SEPA documentation with the Use Process III application and Critical Areas partial exemption decision. This option may be preferable as staff knowledge of updated codes and regulations will likely result in a more streamlined review and decision making process. The department utilizes the combined notice period for land use and environmental threshold determinations and reviewing the checklist alongside the development permit will allow staff to adequately determine whether city codes/policies adequately address impacts. Also, combining the SEPA and permit review allows one agency to provide answers to questions from the public during the required notice period. 4. Public Notice — Use Process III applications require a 14-day comment period. The Notice of Application (NOA) soliciting comments will be published in the Federal Way Mirror and posted at the subject property and official notice boards within the city. A mailed notice to all property owners within 300 feet of the subject property is also required. The applicant is responsible for submitting stamped mailing envelopes for property owners within 300 feet of the subject property. The city's GIS Division can provide this service for a nominal fee. Please see the enclosed handout for further information. If Lakehaven elects to have the city prepare SEPA documents, public notice will be issued with the Use Process III application. Environmentally Critical Areas — The city has recently updated its environmentally critical area regulations since the previous preapplication reviews of this proposal. Due to the new regulations, age of existing Lakehaven critical area reports, and change in alignment, a new critical area report will need to be prepared and submitted with the application. The report must accurately reflect the location of the pump station, alignment of the infrastructure, and footprint of the construction activity. Content requirements of the critical area report and any needed mitigation plans must also reflect items listed in FWRC 19.145.080(2) and 19.145.140. Additionally, the report must identify any impacts that dewatering will have on the adjacent reach of the Hylebos Stream and surrounding wetlands when constructing the new pump station. This information must be provided in the applicable portions of the SEPA checklist. Environmentally critical areas regulations that have changed since the last city assessment of this proposal include new wetland rating classifications, buffers, and mitigation practices. Washington Department of Ecology's guidance document Wetland Mitigation in Washington State Part I provides mitigation information for temporary impacts to wetlands as will likely be the case for constructing the sewer lines. Any permanent impacts to wetlands will need to be mitigated pursuant to requirements set forth in FWRC 19.145.430. Permanent impacts to wetland buffers will require an enhancement plan reflective of approval criteria and requirements set forth in FWRC 19.145.440(6). Encroachments exceeding 25 percent may be approved as the improvements are public utilities, but Lakehaven will have the responsibility to provide an alignment that constitutes the minimum encroachment necessary to facilitate the utility upgrade. Please have your consultant review the new wetland regulations in their entirety (Article IV — Chapter 19.145 FWRC) when preparing updated reports. Also, new Fish and Wildlife Habitat Conservation Area requirements require fish protection measures. The SalmonScape mapping feature from the Washington Department of Fish and Wildlife 15-104085 Doc. I D. 70563 Mr. Miller Page 4 September 14, 2015 identifies the Hylebos reach near the new pump station and main crossing as documented Coho spawning and documented Winter Steelhead waters. Be advised that at a minimum, underground utility crossings must be located at a depth of four feet below the maximum depth of scour for the base flood. Permanent impacts to the stream buffers will require a buffer enhancement plan. Please refer to stream crossing, fish protection, and stream buffer regulations set forth in FWRC 19.145.320, 19.145.390, and 19.145.330, respectively when preparing the updated critical report. Meeting Follow -Up — Staff has reviewed the Native Growth Protection Easement language for Tract B on the Brookfield Country Estates subdivision. The plat language provides authority to King County Building and Land Development Division or its successor agency (City of Federal Way) to allow any tree and vegetation disturbance with the tract. Ground disturbances for utility installation would qualify as such a disturbance and the City has the authority to grant such approval. Use Zone Chart Regulations — The pump station must be set back a minima n of 20 feet from the front, side, and rear property lines. No portion of the structure may be more than 30 feet above average building elevation. 7. Tree Retention/Replacement — Pursuant to FWRC 19.120.030(13), removal of trees in easements and right-of-way for constructing utilities is exempt from the minimum tree density standards. While exempt, protection of trees shall be a major factor in the location, design, and construction of utilities. 8. Screening — Pursuant to FWRC 19.200.140(4), the pump station must be screened from the right-of- way. This can be accomplished by a combination of fencing and landscaping, preferably with a greater emphasis on site appropriate vegetative planting that complements the surrounding wetland resource. PUBLIC WORKS DEVELOPMENT SERVICES DIVISION (Ann Dower, 253-835-2732, ann.dower@cityoffederalway.com) Land Use Issues — Stormwater Surface water runoff control and water quality treatment will be required per the 2009 King County Sul face Water Design Manual (KCSWDM) and the City of Federal Way Addendum to the 2009 KCSWDM. This project meets the requirements for a Full Drainage Review. At the time of land use site plan submittal, a preliminary Technical Information Report (TIR), addressing the relevance of the project to the eight core and five special requirements of the KCSWDM will be required. A Level 1 downstream analysis shall also be provided in the preliminary TIR. The City has 1" = 100', five-foot contour planimetric maps that may be used for basin analysis. 2. The project lies within a Conservation flow control area, thus the applicant must design the flow control facility to meet this performance criteria. In addition to flow control facilities, Best Management Practices (BMP's) are required as outlined in the KCSWDM. The project also lies within an Enhanced Basic Water Quality Area. Water Quality Treatment shall be designed to meet the treatment criteria of the Enhanced Basic Water Quality Menu. 15-104055 Doc LD..70563 Mr. Miller Page 5 September 14, 2015 3. If infiltration is proposed, soil logs prepared by a licensed geotechnical engineer or septic designer must be provided to verify infiltration suitability. 4. Detention and water quality facilities must be above ground (i.e. open pond). Underground facilities are allowed only with approval from the City of Federal Way Public Works Department. 5. Show the proposed location and dimensions of the detention and water quality facilities on the preliminary plans. 6. If more than one acre will be disturbed during, construction, a National Pollutant Discharge Elimination System (NPDES) construction storm water permit may be required. Information regarding this permit can be obtained from the Washington State Department of Ecology at hM://www.ecy.wa-gov/pro,2:rams/wq/stormwater/construction/index.html or by calling 360-407- 6048. 7. If work is to be done below the ordinary high water mark, a Hydraulic Project Approval (HPA) permit may be required. Information regarding this permit can be obtained from the Washington Department of Fish and Wildlife. Right -of -Way Improvements See the Traffic Division comments from Sarady Long, Sr. Transportation Planning Engineer, for traffic related items. 2. A right-of-way permit will be required for work within S 359"' Street and Pacific Highway S. Traffic control plan, erosion control plan, and full -width grind and overlay will be required for the trench within S 359"' Street. A right-of-way permit will also be required for work within Pacific Highway S. Requirements for Pacific Highway S will be determined when the application is made for a right- of-way permit. An open -cut is not anticipated and would likely include extensive mitigation if allowed. Building (or EN) Permit Issues I . Engineered plans are required for clearing, grading, road construction, and utility work. Plans must be reviewed and approved by the City. Engineering review fees are $824.50 for the first 12 hours of review, and $68.00 per hour for additional review time. A final TIR shall be prepared for the project and submitted with the engineering plans. Both the TIR and the plans will require the signature/seal of a professional engineer registered/licensed in the state of Washington. 2. In addition to engineering approval, short plats and subdivisions are required to obtain a separate permit for grading. Details and fees may be obtained from the Building Department. The Federal Way Public Works Development Standards Manual (including standard detail drawings, standard notes, and engineering checklists) is available on the City's website at http://www.cityoffederalway.com/index.aspx?nid=171 to assist the applicant's engineer in preparing the plans and TIR. 15-104095 Doc I D. 70563 Mr. Miller Page 6 September 14, 2015 4. The developer will be responsible for the maintenance of all storm drainage facilities (including the detention and water quality facilities) and street systems during the two-year maintenance period. During that time, the Public Works Inspector will make periodic visits to the site to ensure the developer's compliance with the maintenance requirements. Upon satisfactory completion of the two-year maintenance period, the remainder of the bond will be released. Maintenance for public roads and subdivision drainage facilities then become the responsibility of the City. Maintenance for private roads and drainage facilities, including short plats, remain the responsibility of the individual property owners. 5. When topographic survey information is shown on the plans, the vertical datum block shall include the phrase "DATUM: N.G.V.D.-29" or "DATUM: K.C.A.S.," on all sheets where vertical elevations are called out. 6. Drawings submitted for plan review shall be printed on 24" x 36" or 22" x 34" paper. Site plans shall be drawn at a scale of 1" = 20', or larger. Architectural scales are not permitted on engineering plans. 7. Provide cut and fill quantities on the clearing and grading plan. Temporary Erosion and Sediment -control (TESC) measures, per Appendix D of the 2009 KCSWDM, must be shown on the engineering plans. 9_ The site plan shall show the location of any existing and proposed utilities in the areas affected by construction. BUILDING DIVISION, Peter Lawrence, Plans Examiner, 253-835-2621, peter.lawrence@cityoffederalway.com The following 2012 ICC codes will be applicable to this proposed project: ■ International Building Code (IBC), 2012 Washington State Amendments WAC 51-50 • International Fire Code (IFC), 2012 Washington State Amendments WAC 51 -54 w National Electric Code (NEC), 2012 • International Mechanical Code (IMC), 2012 Washington State Amendments WAC 51-52 Design Criteria Wind/Seismic: Basic wind speed 85 Mph, Exposure, 25# Snow load, Seismic Zone D-1 A complete building pen -nit application and commercial checklist. (Additional copies of application and 15-104085 Doc I D 70563 Mr. Miller Page 7 September 14, 2015 checklists may be obtained on our web site at www.cityoffederalway.com.) Submit _5_ sets of drawings and specifications. Specifications shall include: _2_ Soils report, _2_ Structural calculations, Note: A Washington State Registered architects' stamp is required for additions/alterations (new or existing) of 4,000 gross floor areas or greater unless specifically listed as an "exempt" structure per the Revised Code of Washington (RCW). Specific Submittal Information Required: • Concrete pad design with structural engineer stamp. • Attachment method for pump house to meet minimum design criteria. Ventilation details for mechanical exhaust if applicable. • Manufacturer's specifications and installation manual for precast structure. Federal Way reviews plans on a first in, first out basis; however, there are some small projects with inconsequential review requirements that may be reviewed out of order. Review Timing The first comment letter can be expected within _6_weeks of submittal date. Re -check of plans will occur in one to three weeks after re -submittal. Revised or resubmitted plans shall be provided in the same format, size, and amount as the originally submitted plans. Revised/resubmitted drawings shall indicate by means of clouding or written response, what changes have been made from the original drawings. Plans for all involved departments will be forwarded from the Department of Community Development. Other Permits & Inspections Separate permits shall be required for electrical. Applicants may apply for separate permits at any time prior to commencement of construction. When required, special inspections shall be performed by WABO approved agencies or by agencies approved by the building official prior to permit issuance. Construction must be approved by all reviewing departments prior to final building division inspection. All concerned departments (Planning, Public Works, Electrical, & Fire) must sign off before the Building Department can final the structure for occupancy. Building final must be approved prior to the issuance of a Certificate of Occupancy. All construction projects may be required to have a pre -construction conference. If a pre -con meeting is required, the general or representative, all subs, the architect or representative, the engineer or representative, electrical contractor and any other interested party, should attend this meeting. Meetings will occur at the Building Department and will be scheduled by the inspector of record for the project. The information provided is based on limited plans and information. The comments provided are not intended to be a complete plan review and further comments are possible at time of building permit plan review. 15-104085 Doc. 1 D, 70563 Mr. Miller Page 8 September 14, 2015 CLOSING This letter reflects the information provided at the preapplication meeting and is intended to assist you in preparing plans and materials for formal application. We hope you found the comments useful to your project. We have made every effort to identify major issues to eliminate surprises during the City's review of the formal application. The completion of the preapplication process in the content of this letter does not vest any future project application. Comments in this letter are only valid for one year as per FWRC 19.40.070 (4). As you know, this is a preliminary review only and does not take the place of the full review that will follow submission of a formal application. Comments provided in this letter are based on preapplication materials submitted. Modifications and revisions to the project as presented for this preapplication may influence and modify information regarding development requirements outlined above. In addition to this preapplication letter, please examine the complete FWRC and other relevant codes carefully. Requirements that are found in the codes that are not addressed in this letter are still required for your project. If you have questions about an individual comment, please contact the appropriate department representative noted above. Any general questions can be directed towards the key project contact, Matthew Herrera, 253-835-2638. We look forward to working with you. Sincerely, Matthew Herrera, AICP Senior Planner enc, Bulletin 001 Process III Submittal Requirements Bulletin 002 Mailing Labels Bulletin 003 Master Land Use Application Bulletin 050 Environmental Checklist c: Ann Dower, Senior Engineering Plans Reviewer Peter Lawrence, Plans Examiner 15-104085 Doc I. D 70563 CITY OF sari Federal Way September 3, 2015 9:00 a.m. Pre -application Conference Sign in Sheet COMMUNITY DEVELOPMENT REVIEW COMMITTEE Project Name: Lakehaven Pump Station #33B Address: Parcel 292104-9157 and nearby parcels/ROW File Numbers: 15-104085-PC City Hall Hvlebos Room NAME DEPARTMENT / DIVISION TELEPHONE NUMBER 1. C-; t�-.-�.,-. 5 .1 0 2. &Ins -: 5 - �'D s-Z73 z 4. L-�o�4S`� 1�w 1 >e 5��� r�una Z5 3 83s Z?30 L 2rvZ5. 6. / I AJ6 S 7. 8. 9. 10. 11. 12. ) RECEIVED AUG 12 2015 CITY OF FEDERAL WAY PUMP STATION 33(B); GRAVITY SEWER LINE; AND FORCE MAIN PROJECT SUMMARY AND DESCRIPTION Pro'ect Description: The project includes the construction of a 30 foot deep 12 foot diameter precast manhole submersible pump station wetwell; approximately 395 feet of 24 inch and 660 feet of 48 inch gravity sanitary sewer lines; approximately 100 feet of 10 inch force main; 2,225 feet of 20 inch force main; and 1,265 feet 2 inch force main. Additional site facilities include an electrical panels building, an odor control system, and a future standby generator. Incorporated into the subbase of the future generator will be a 3,000 gallon diesel fuel storage tank. Initially, the District will use a portable standby generator for the pump station. In order to accommodate sufficient holding capacity in the South 359th gravity sewer lines, the proposed site finished ground elevation will be raised to 170 feet. The project is proposed to be constructed in two phases. Phase I will be constructed in 2016. Phase II will be constructed in 2018 or later. Phases I and II construction activities are described as follows: Phase I: - Pump Station and Gravity Sewer Lines • Construction of the pump station wetwell and appurtenances A Pump station electrical building and appurtenances ■ Pump Station odor control system and appurtenances 0 24 and 48 inch gravity sewer lines and appurtenances e 10 inch force main and appurtenances The site selected for the new pump station is located on property owned by City of Federal Way (parcel numbers 292104-9157). The service area tributary to this pump station is experiencing rapid growth and the District needs to increase the capacity of the existing pump station located south of South 359th Street on parcel 292104-9157 that has been in operation for about 30 years. The easement for the existing pump station was acquired by Lakehaven prior to the City of Federal Way purchasing the property for the preservation open space with King County Open Space Bond Funds. Emails between David Tiemann of King County and Lakehaven regarding the funding source used to purchase the open space are attached. Current use of the property is not changing; just the location of the present use (pump station) would be move further north adjacent to South 359th Street. Because of the existing pump station location near wetlands and Hylebos Creek, enlarging the pump station at its present site is not feasible. The District would prefer relocating the new station further north on the same parcel on an equal size easement. The existing pump station easement area including the access road is about 9,511 square feet. Enclosed is a letter dated June 9, 2015 from John Hutton, Park Director, agreeing with the relocation of the pump station. The existing Pump Station 33(A) located on City of Federal parcel 292104-9157 will remain in operation and will continue to be used until the new Pump Station 33(B) system is operational. Once pump station 33(B) is fully operational, the existing pump station 33(A) will cease operation. The existing station and paved access easement south of the relocated station site would be vacated by Lakehaven. All above ground equipment at the existing pump station site will be removed. The top three feet of both the existing pump station and wet well will be removed and the remaining depth filled with pea gravel and capped. The 12 inch sewer gravity line and 10 inch force main between the existing pump station 33(A) and proposed pump station 33(B) will be plugged at both ends, but not removed. The top three feet of the 48 inch sewer gravity line manholes will be removed and the remaining depth filled with pea gravel and capped. The existing 12 inch gravity sewer line in South 359th Street between the new pump station 33(B) and the terminus of the existing 24 inch sewer line located approximately 355 feet west of 14th Place South will be removed and replaced with the new 24 and 48 inch gravity sewer lines in the same trench. The gravity sewer system will cross over the North Branch of the Hylebos Creek in South 359th Street and the force main will cross under West Branch of Hylebos Creek on the Barovic Property (292104-9098) as shown on drawings 2 and 5 respectively. Because of high groundwater in the area and the depth of the pump station wetwell and gravity sewer lines, dewatering of portions of the construction site will be necessary. Possible options for disposal of this water are Hylebos Creek, City of Federal Way Pac Hwy storm drainage system, or adjacent wet lands owned by the City of Federal Way. Phase II: — 20 Inch HDPE Force Main 0 2,225± feet of 20 inch force main and appurtenances 1,265± feet of 2-inch small diameter force main and appurtenances from the Don Barovic's private sewer pump station to the Lakehaven gravity sewer line on the west side of Pac Hwy. K The 20 inch force main will be installed between the pump station 33(B) and the 3rd Avenue Cul-deSac in Brookfield Country Estates. The proposed route of the new 20 inch force main will be westerly in South 359th Street to the westside of Pacific Highway South, thence south in a Lakehaven Sewer easement paralleling Pacific Highway South to the driveway access for parcel number 292104-9020, thence westerly across parcel numbers 292104-9020 (Don Barovic), 9163 (Lakehaven Utility District), 9080 (Don Barovic), Tract "B" of Brookfield Country Estates (Native Growth Protection Easement Permanent Open Space), and 113780-0210 (Brookfield Country Estates-McEniry/Acosta) to the 3rd Ave South Cul-de-Sac. Site Plan: Included in this application package are the follow maps: • Vicinity Map showing an overview of the proposed sewer system location and route for both phases I and II. • King County Assessor Maps showing the proposed sewer system location and route. • Four (4) Preliminary plans sheets showing the proposed pump station, and gravity and force main systems with two foot contours. • Existing property lines, existing and proposed easements, and fee purchases are shown the plan sheets. Other Information: Phase I: — Pump Station and Gravity Sewer Lines The pump station site will not require any parking stalls. Lakehaven maintenance staff and required vehicles will visit the site a least once a week. No vehicles will be parked at the site over night. The site will be accessed using the existing driveway and a new driveway located east of the existing pump station driveway. There are no other existing driveways or cross roads located within 400 feet of the site. Pacific Highway South is about 400 feet to the west and there is a City of Federal Way property driveway about 500 feet to the east. • If required, storm drainage Will be handled by a "Full Dispersion" system that will discharge and flow overland to the south into the City of Federal Way owned adjacent wetlands (parcels 9292104-9152 and 9157) and wetland buffer areas. N Two environmental site evaluations prepared by ESA for parcels 292104- 9088, 9151 and 9157 are attached. The entire proposed pump station site is located within wetland buffer areas. 10 The zoning for the pump station site is SR 35. A 20 foot structure setback is required. Included in the 20 foot setback area is a 10 foot wide landscape strip. The west, east, and south sides of the proposed pump site are surrounded by wetlands and wetland buffers. South 359th Street is located along the Northerly boundary of the site. The North Branch of Hylebos Creek is located east of the site. Lakehaven will fence the entire perimeter of the pump station site. No landscaping is proposed on the west, south, and east sides of the site. There will be limited landscaping on the north side between the access gates. Phase II: — 20 Inch HDPE Force Main Permanent and temporary construction sewer easements across the Brooklake Community Church and Donald Barovic properties (292104-9020 & 9098) have been obtained. Permanent and temporary easements across Brookfield Country Estates (113780-Tract "B" designated as "Open Space") and David McEniry/Carolina Acosta (113780-0210) properties are presently being negotiated. A small easement will be required from the owners of Tract "B"as shown on plan sheet 5. A 36 inch steel casing will be jack and bored under Pacific Highway South from South 359th Street to the Lakehaven sewer easement on the west side of Pacific Highway South for the 20 inch force main ® The 20 inch force main will be directionally bored under both Hylebos Creek and Brookfield Country Estates crossings. Tract "B" of Brookfield Country Estates (as noted the enclosed Brookfield Country Estates plat map) is designated as open space / wetland and has construction limitations. However, boring under southeast corner will have no surface impact upon this area. ■ As shown by the contours on plan sheet 4, there are areas within the Lakehaven Utility District property 292104-9163 that have slopes 40% or greater. Construction of the force main across this parcel will have no impact upon the slope areas. Two environmental site evaluations prepared by ESA for parcels 292104- 9020, 9098,and 9163 that the 20 inch force main will be crossing are attached. 0 * A majority of parcels 292104-9020, 9098 and 9163 are located within wetland buffers. The 20 inch force main will be constructed across all three parcels. With the exception of a small wetland designated as wetland "B" ESA evaluation located near the northeast corner of parcel 292104-9020, no construction will occur in any other wetland areas. The 20 inch force main will be constructed through this small wetland "B" Once the project is completed, wetland "B" will be restored to its original condition. Any mitigation required for the project is proposed to be done on parcel 292104- 9163 owned by Lakehaven In two ESA reports, the wetland and stream buffer widths are noted per City of Federal Way regulations for parcels 292104-9020, 9098and 9163. ■ Zoning along the route of the 20 Inch force main includes RS15, RS35, SE, and OP. Parcel Numbers of Pro oerties that the sewer Fstem will cross: 2921049020 — Donald Barovic ® 2921049038 — Brooklake Community Church ■ 2921049051 — Brooklake Community Church ■ 2921049098 — Donald Barovic 2921049102 — Brooklake Community Church • 2921049157 — City of Federal Way • 2921049163 — Lakehaven Utility District • 1137800210 — Brookfield Country Estates — Lot 21 — easterlye line & Tract B property p ' 1137800220 — Brookfield Country Estates — Lot 22 — Tract B • 1137800230 —Brookfield Country Estates —Lot 23 —Tract B • 1137800240 —Brookfield Country Estates —Lot 24 —Tract B 5 Awl' co r- FPripr;;l W;iv 0 100 200 400 600 800 N Feet Lakehaven Pump Station Lakehaven Pump Station August 26, 2015 Documented Presence Documented Spawning Documented Rearing Modeled Presence Presumed Presence -- Potential: Blocked — Documented Historic Presence H+ Transported Presence — Transported Spawning — Transported Rearing --- Documented -Artificial, Presence Documented -Artificial, Spawning --- Documented -Artificial, Rearing Hatchery Rearing Facility Trap - Adult Trap - Juvenile Trap - Unknown Juvenile or Adult Major Dams 1:9,028 0 0.1 0.2 0.4 mi 0 0.175 0.35 0.7 km Sources: Esri, HERE, DeLorme, Intermap, increment P Corp., GEBCO, USGS, FAO, NIPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, Mapmylndia, © OpenStreetMap contributors, and the GIS User Community li I P Jim Ferrell, Mayor August 18, 2015 Ken Miller, Engineering Manager Lakehaven Utility District PO Box 4249 Federal Way, WA 98063-4249 RE: File #15-104085-00-PC; NOTICE OF PREAPPLICATION CONFERENCE Lakehaven Sewer Pump Station #33b, 200 S 359th St, Federal Way Dear M Killer: The Community Development Department is in receipt of your preapplication conference request. The application has been routed to members of the Development Review Committee and the meeting has been scheduled as follows: 9:00 a.m. — Thursday, September 3, 2015 Hylebos Conference Room Federal Way City Hall, 2nd Floor 33325 8`' Avenue South Federal Way, WA 98003 We look forward to meeting with you. Please coordinate directly with anyone else you would like to attend the meeting as this will be the only notice sent by the department. If you have any questions regarding the meeting, please contact me at matt.herrera u7cit affederalwa .com, or 253-835-2638. Sincerely, iv a ew Herrera, AICP Senior Planner Doc LD 70561 33325 8th Avenue South, Federal Way, WA 98003-6325 - (253) 835-7000 www.cityoffederalway.com CITY OF FEDERAL WAY COMMUNITY DEVELOPMENT DEPARTMENT DEVELOPMENT REVIEW COMMITTEE TRANSMITTAL DATE: August 17, 2015 TO: E.J. Walsh, Development Services Manager Scott Sproul, Building Official Brian Asbury, Lakehaven Utility District Chris Ingham, South King Fire & Rescue Rick Perez, City Traffic Engineer FROM: FOR DRC MTG. ON.• FILE NUMBER(s): RELATED FILE NOS.: PROJECT NAME: PROJECT ADDRESS ZONING DISTRICT. - PROJECT DESCRIPTION: LAND USE PERMITS. PROJECT CONTACT: Matt Herrera, Planning Division August 27, 2015 - Internal September 3, 2015, 9am - with applicant 15-104085-00-PC None LAKEHAVEN SEWER PUMP STATION #33B 200 S 359TH ST RS 35.0 Proposal to relocate Pump Station 33(b) and Force Main Route to meet increased demands. Preapplication Conference LAKEHAVEN UTILITY DISTRICT KEN MILLER 31627 15` Ave S. Federal Way, WA 98063 MATERL4LS SUBMITTED: 1. Signed MLU 2. Letter from John Hutton allowing the pump station on city property 3. Project Narrative 4. Vicinity Map 5. Civil Sheets 5309 Shilshole Avenue NW Suite 200 Seattle, WA 98107 206.789.9658 phone 206.789.9684 fax memorandum date March 25, 2015 to Kenneth Canfield, Lakehaven Utility District from Claire Hoffman and, Michael Muscari subject Wetland Delineation on parcel 2921049088 RECEIVED AUG 12 2015 CM OF FEDERAL WAY CDS www.esassoc.com Introduction Environmental Science Associates (ESA) was contracted by the Lakehaven Utility District (LUD) to conducte a wetland reconnaissance and partial delineation of the property (Tax Parcel 2921049088) on the corner of Pacific Highway South and South 359th Street in Federal Way (the property). The LUD is considering purchasing this property for a potential relocation of the existing pump station on the adjacent property. Background Information ESA performed a review of existing information regarding wetlands and streams. Sources of information included current aerial photographs, City of Federal Way maps, and National Wetland Inventory (NWI) data. The majority of the property is mapped by NWI as palustrine forested wetland, with the exception of the eastern edge (USFWS, 2015). The City of Federal Way Critical Area Map shows the entire property as a wetland with a stream on the western edge (Federal Way, 2012). The Spring Valley Open Space lies to the north and south of the property and a fish bearing tributary to Hylebos Creek runs north/south on the adjacent property to the east (Federal Way, 2008). Wetland Delineation and Reconnaissance On February 10, 2015 Claire Hoffinan and Michael Muscari from ESA conducted a wetland delineation and reconnaissance of the property. During this site visit, ESA staff and Ken Canfield (LUD) walked the perimeter of the property as well as a diagonal path through the center of the property to observe and assess wetland conditions. A second site visit was conducted on February 13, 2015 by Michael Muscari and Scott Olmsted to complete data collection. The wetland was identified and delineated based on conditions at the time of the field visit by applying the wetland determination method described in the Regional Supplement (Western Mountains, Valleys, and Coast) to the Corps of Engineers 1987 Wetland Delineation Manual Corps (Corps, 2010). A Trimble Geo-XT GPS unit was used to record the location of the eastern wetland boundary, the remaining boundary was estimated. The wetland was classified according to the Washington State Department of Ecology's (Ecology) Wetland Rating System for Western Washington (Hruby, 2014) and City of Federal Way Revised Code (FWRC 19.175.020). Several data plots were established along the eastern property boundary in order to delineate the wetland boundary. Wetland indicators were present for hydrology, vegetation, and soils at each plot determined to be within the wetland boundary. Soils were saturated from the surface to a depth of at least 16 inches. Dominant vegetation consisted of wetland tolerant species. Soils exhibited hydric soil characteristics including redox dark surface and depleted matrix. The wetland on the property is part of a larger wetland complex (>30 acres), which includes a tributary to Hylebos Creek and extends from approximately South 359th Street to just north of South 373rd Street between Pacific Highway South and I-5. Just north of South 373rd Street, the tributary joins West Hylebos Creek. Figure 1 shows the extent of the wetland on the subject property. The wetland covers the majority of the property with a narrow section on the eastern edge of uplands along the paved driveway to the existing pump station. The wetland on the property is forested with many large trees including Western red cedar, Douglas fir, red alder, and vine maple. The dominant shrub is salmonberry, which provides moderately dense cover. Skunk cabbage and other native herbaceous plants are common throughout the site. The eastern edge of the wetland is emergent wetland as the wetland extends out of the forest into the driveway easement. This area is dominated by various grass species, including reed canary grass and soft rush. Shallow groundwater appears to be the primary source of hydrology to the wetland. There are also at least three culverts draining into the subject property. Two carry water under South 359t` Street from the wetland to the north; one near the one-third point (from the intersection of Pacific Highway and South 359th Street) of the north property boundary, a second near the northwest corner of the property, and a third under Pacific Highway South near the mid -point of the west property boundary. At the time of the site visit the culverts had low flow. The water emerging from the northwestern culvert and the northerly culvert appear to merge and cross as a stream through the center of the property. A constructed ditch (likely decades old) runs approximately the length of the property near the southern boundary and is likely connected to the aforementioned western culvert. Under FWRC 19.175.020, this wetland would likely be considered a Category I because it has high function for wildlife habitat, water quality improvement, and hydrologic support. Habitat complexity is apparent because the wetland has three or more wetland classes, one of which is.open water. Open water and emergent wetland classes are visible on aerial photography to the south of the subject property. Although these portions of the wetland are not on the subject property they are part of the wetland unit and thus considered in the rating. Structural complexity in the vegetation community also provides a high level of wildlife habitat functions. Ecology's rating system also categorizes it as a Category I wetland. Federal Way requires a 200-foot buffer around Category I wetlands (FWRC 19.175.020). References Corps (U.S. Army Corps of Engineers). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. Version 2. Wetlands Regulatory Assistance Program. May 2010. ERDC/EL TR-10-3. http:1/www.usace.army.mil/CECW/Documents/cecwo/reg/west mt_fmalsupp.pdf. Federal Way. 2008. Current Land Use Map. Accessed March 24, 2015. Available at http://www.cityoffederalway.comlDocumentCenter/HomeNiew/457. Federal Way. 2012. Critical Areas Map. Accessed March 24, 2015. Available at http://wa- federalway. civicplus.coxn/Docum entCenter/Home/View/460. Hruby, T. 2014. Washington State Wetland Rating System for Western Washington — 2014 Update. Ecology publication number 14-06-029. Olympia, WA. USFWS. 2015. National Wetlands Inventory Wetland Mapper. Accessed March 24, 2015. Updated May 1, 2014. Available at: http://www.fir,s.gov/wetiands/Data/Mapper.html 3 Photographs Photo 2. Eastern edge of wetland along driveway easement, facing north (February 13, 2015). south (February 13, 2015). SOURCE: ESA 2015. OSM 2014, King County 2014, ESRI 2013 Lakehaven Pumpstation. 206061.14 Figure 1 Lakehaven Utility District Pump Station Investigation Site date August 14, 2009 ,to Ken Canfield, Lakehaven Utility District from Laura Brock and Michael Muscari 5309 Shilshole Avenue NW ViMy.adolrson.coni Suite 200 Seattle, WA 98107 206.789.965E phone 2D6.789.9684 fax RECEIVED AUG 12 2015 CITY OF FEDERAL WAY CDS subject Lalehaven Utility )[District, )Barovic ]Property (Parcel 2921049098) Critical Areas (Delineations, Federal Way, Washington ESA Adolfson is pleased to present our critical areas delineations findings for the Barovic Property (King County Parcel 2921049098), located at 35929 Pacific Highway South, approximately 600 feet west of the intersection of Pacific Highway South and S. 359th St, in Federal Way, Washington (NW Y, Section 29, Township 21N, Range 4E; Figure 1). ESA Adolfson conducted these critical areas delineations at the request of Lakehaven Utility District (LUD), which is considering the parcel as a possible location for a utility corridor associated with the P33 Pump Station. The property is accessed frorn a gravel driveway on the adjacent parcel to the east (King County Parcel 2921049020) and is currently developed with a single family residence and several associated outbuildings (Figure 2). In addition to the single family residence, the property is also used for grazing small livestock (goats and chickens) and tree harvesting. A mix of open -canopy forest, closed -canopy forest, and meadows covers the: property. The property slopes down from the east and west towards a stream which flows through the center of the property. Two small bridges provide access to the residence, which is located west of the stream. ESA Adolfson previously conducted delineations on a parcel to the east (King County Parcel 2921049020); the results of those investigations were also used during this study. Methodology ESA Adolfson biologists Michael Muscari,and Laura Brock conducted wetland and stream delineations on the Barovic property on June 25, 2009. Biologists Laura Brock and Rosemary Baker made a return site visit on June 30, 2009 to complete the delineations. Wetland boundaries were delineated using the Washington State Wetlands Identification and Delineation Manual (Washington Department of Ecology, 19M and the Western Mountains, Valleys, and Coast Interim Pwgional Supplement (US Army Corps of Engineers, 2008). Wetland boundaries were marked with pink "Wetland Boundary" flagging tape, and data plot locations were marked with orange flagging tape. Stream boundaries were marked with blue and white striped flagging tape along the ordinary high water mark (OHWM). The flagged wetland and stream boundaries were professionally surveyed by INCA during July 2009. Critical area categories and buffer requirements were determined using Federal Way Revised Code (FWRC) Title 19, Division V—Critical Areas. Lahehaven Utility District, Barovic Critical Areas Study August 14, 2009 Findings Four wetlands (Wetlands 4, 5, 6, and 7) and one stream (Stream 2) were delineated on the Barovic property (Figure 2). Additionally, small wetlands were identified extending east and west approximately five to 15 feet upslope of the stream OHWM, where groundwater was emerging as seeps. These seeps are located between Wetlands 4 and 5, in the central portion of the property. These wetlands were not delineated because they appeared to be less than 2,500 square feet in size, below the regulatory threshold in Federal Way, and are entirely contained within the stream buffer. A description of the delineated wetlands, stream, and uplands follows. Wetland Descriptions Wetland 4 Wetland 4 (estimated to be greater than one acre), located along the southwestern edge of the property, is a palustrine, forested wetland adjacent to the stream running through the center of the property (Figure 2). The portion of the wetland that is on the Barovic property slopes down to the south and east towards Steam 2. Red alder (4hius rubra) provides tree canopy over the majority of the wetland. Sahmonberry (Rubes spectabilis), stinging nettle (Urtica dioica), skunk cabbage (Lysichitor_ americanum), lady fern (Athrvizan felix femina), and giant horsetail (Equisetunz tehnateia) are the dominant plants in the understory. Wetland 4 receives water primarily from a high groundwater table, and exhibits characteristics of both depressional and slope hydrogeomorpluc classes. On the June 25 and 30, 2009 site visits, soil within a large portion of the wetland interior was saturated to the surface. Water leaves the wetland primarily through the stream. Soil within Wetland .4 met requirements for hydric soil indicator F1, Loamy Mucky Mineral. A black (10 YR 2/1) mucky modified mineral layer greater than four inches deep was observed throughout the wetland. The wetland continues off -site to the south. Wetland 5 Wetland 5 (estimated to be greater than 1 acre), located on the northwestern portion of the property, is a palustrine, forested wetland adjacent to Stream 2 (Figure 2). The majority of the wetland continues off -site to the north. The portion of the wetland on the Barovic property slopes down to the east and west towards the stream. Red alder doniinates the canopy cover of the wetland; several large alders and a large hemlock, which appeared to be greater than 21 inches in diameter, were observed in the wetland off -site to the north. Water parsley (Denonthe sarinentosa), skunk cabbage, and salmonberry dominate the understory. Wetland 5 receives water primarily from a high groundwater table and from small off -site streams running into Stream 2. During the June 25 and 30, 2009 site visits, soil was saturated to the surface or was observed to have. several inches of flowing water present. According to hydrogeomorphic classification, the wetland exhibits riverine and slope hydrogeomorpluc characteristics. Steam 2, a tributary to West Hylebos Creels, is the wetland's inlet and outlet. On the Barovic property, soil within Wetland 5 met requirements for hydric soil indicators Al 1, Depleted Below Dark Surface, 'and F3, Depleted Matrix. A black (10 YR 2/1) silt loam was observed in the surface layer, and gray (2.5 Y 6/1) silt with dark yellowish brown (10 YR 516) and strong brown (7.5 YR 416) redoximorphic features was observed in the subsoil. The wetland interior was observed to have organic soil. Wetland 5 is separated from wetlands contiguous with the West Hylebos Wetland Parlc, a Category 1 wetland complex, by the road bed fill supporting S. 356i°' Street, off -site to the north of the property. However, Stream 2, - Lakehaven Utility District, Bar•ovic Critical Areas Study August 14, 2009 a tributary tb West Hylebos Creek provides a connection between these wetlands byway of a culvert beneath the roadway. Wetland G Wetland d (2,059 square feet), located within a ditch running east to west along the north side of the residence, is a palustrine emergent wetland (Figure 2). Velvet grass (Holcus lanalrrs) and creeping buttercup (Ranuncuhts repens) dominate the wetland, with a few red alders lining, the ditch. An eight -inch culvert, Located at the west end of the wetland, is the wetland's intet. Wetland 5 -receives water primarily from surface flows from the surrounding area and presumably flood flows from Wetland 5. Water fi-am the wetland flours through the ditch and into Stream 2, According to hydrogeomorphic classification, the wetland exhibits riverine hydrogeomorphic characteristics, During the June 25 and 30, 2009 site visits, soil was saturated to the surface tar the wetland interior. Soil within Wetland & met requirements for hydric soil indicators All, Depleted Below Dark Surface, and F3, Depleted Matrix. Avery dark brown (10 YR 2/2) sandy Ioam was observed in the surface layer, and gray (2.5 Y 511) silt with dark yellowish brown (10 YR 416) and strong brawn (7,5 YR 4/6) redoxnnorphic features was observed in the subsoil. Wetland 7 Wetland 7 (257 square feet), located in a small depression in the southeast portion of the property, is a palustrine emergent wetland (Figure 2). Timothy grass VhIeurMpratense), creeping buttercup, and bentgrass (Agrostis sp.) dominate the wetland. Red alders sparsely surround the depression. Wetland 7 receives water primarily from surface flows from the surrounding area. According to hydrogeoniorp[ric classification, the wetland exhibits depressional hydrogeornorphic characteristics. Art outlet is present at the west edge of the wetland, where a ten - inch culvert directs water flow under a gravel roadway and onto an adjacent slope. During the June 30, 2009 site visit, water- was observed seeping into the soil pit at 20-inches. We assume thatthe water table is higher earlier is the growing season. Soil within Wetland 7 met requirements for lrydric soil indicator F [, Loamy Mucicy Mineral. ,A, modified mucky loam was observed to a depth of 20 inches within the wetland. According to FWRC 19.175.020, Wetland 7 is not regulated by the City of Federal Way because it -is less than 2,500 square feet. Stream Description Stream 2 (West Fork of Hylebos CYcelc) is approximately five to ten feet wide where it flows through the center of the property north to south (Figure 2). The stream meanders through forest at the north end of the property, and fine silts, sands and small gravels form the stream substrate. At the center of the property, the stream enters an incised ravine with no shade cover. The ravine extends approximately 500 feet through the center ofthe property, and continues off -site to the south. Large cobbles and gravels form the stream substrate, which was covered with algae in .Tune 2009. As the stream continues to the south, stream bank incision increases and signs of bank erosion are prevalent. Farther to the south, the stream reenters forest. Riffles and pools were observed along the southern portion of the stream within the forest. Stream 2 is documented to support anadromous sahmonids. Lakehcmen Utility District, Barovic Critical Areas Study August 14, 2009 Upland Description Uplands on the Barovic property generally consist of open -canopy forest, closed -canopy forest, and meadows. Red alder, big leaf maple (Ater rnacrophyllum), black cottonwood (Populus balsainijera), Douglas fir (Psuedotsuga mem;tesii), Western red cedar (Tlnja plicata), and western hemlock (Tsuga heterophylla) line the edges of slopes and previously cleared areas of the property. Himalayan blackberry (Rubus areineniacus), snowberry (Symphoricmpos albus), and salmonberry were observed in the forest understory along the edges of clearings. Meadows dominated by Timothy, velvetgrass, and bentgrass are located in the central portion of the property, with tree islands interspersed throughout. Conclusion and Summary Portions of four wetlands (Wetlands 4, 5, 6, and 7) and one stream (Stream 2) were delineated and classified for this investigation. A summary of these critical areas and their buffer requirements is given below and in Table L. Required buffers are shown on Figure 2. Wetland Categories According to FWRC 19.175.020, Wetland 4 is considered a Category 2 wetland because it is estimated to be greater than one acre in size and is contiguous with Stream 2, which supports anadromous sahmonids. According to FWRC 19.175.020, Wetland 5 is considered a Category 1 wetland because of its association with Stream 2, which has documented anadromous sahnonid fish presence. The small tributaries which flow into Stream 2 likely contain fish habitat as well. Additionally, the wetland appears to be a mature forested wetland (trees greater than 21 inches in diameter) as defined by the Washington Department of Fish and Wildlife (WDFW), which provides irreplaceable ecological functions and local significance. According to FWRC 19.175.020, Wetlands 6 and 7 and the wetland seeps adjacent to Stream 2 are not regulated by the City of Federal Way because they are less than 2,500 square feet. The City of Federal Way does not regulate wetlands less than 2,500 square feet in size, regardless of whether the wetland is isolated or connected to a water body. Therefore, even though Wetland 6 and the wetland seeps are contiguous with Stream 2, they are not regulated by the City and have no buffer .requirement. The seeps are located entirely within the Stream 2 buffer. Table 1. Wetland Summary Table Wetland ID Estimated Total Area Cowardin Class ' HGM Class 'Wetland Category Buffer Requirement 4 > 1 acre PFO De ressional/Slo e _ 2 100 ft. 5 > 1 acre PFO Riverine/Sloe 1 200 ft. 6 < 2,500 s . ft. PEM Riverine Not re hated by the City n/a 7I < 2,500 s . ft. PEM De ressional J Not regulated by the City n/a Stream Rating According to the City of Federal Way, the stream is rated as a major stream (Federal Way, 2005). The FWRC 19.05.130 defines a major stream as "any stream, and the tributaries to any stream, which contains or supports, or 4 Lakehaven Utility District, Bar•ovic Critical Areas Study Airgust 14, 2009 under normal circumstances contains or supports, resident or migratory fish." According to FWRC 19.16,5.010,. major streams require a 100-foot buffer. Limitations 'Within the limitations of schedule, budget, and scope -of -work, we warrant that this study was conducted in accordance with generally accepted envirornnental science practices, including the technical guidelines and criteria in effect at the time this study was performed. The results and conclusions of this report represent the authors' best professional judgment, based upon site conditions present at the time of the investigation and inforniation provided by the project proponent in addition to that obtained dutiug the course of this study. No other warranty, expressed or implied, is made. Thank you for the opportunity to prepare this material for you. if you have any questions, please call 206-789- 9658. Attachments Figure 1: Site Vicinity Map Figure 2: Wetland Map References Federal Way. 2005. Stream Ratings Map. Accessed at: hit :Ihvww.cit offederalwa.coiiVfolderslhome/businesseconomicdevelo rnent/ci irta s/enviromnentalnr a slstreatus.od#' US Army Corps of Engineers. 2008. Western Mountains, galleys, and Coast Inter rtt: Regional Supplement. Washington Department of Ecology. 1997. Washington State Wetlands Identification and Delineation Manital. Ecology Publication #96-94. 5 Lakehaven Design. 26061.2 SOURCE: ESA Adolfson, 2009; King. County, 2008 (2002Air Photo) Figure 7 Vicinity Map •Federal Way, Washington .l 4 i date March 19, 2009 to Kenneth R. Canfield, Project Engineer Lakehaven Utility District 31623 1" Ave South Federal Way, WA 98063-4249 -from Michael Muscari, Senior Wetland Scientist Rosemary Baker, Project Scientist 5309 Shilshole Avenue NW www.adolfson.com Suite 200 Seattle, WA 98107 206.789.9658 phone 206.789.9684 fax RECEIVED AUG 12 2015 CITY OF FEDERAL WAY CDS subject LUD Project 5204401 and 5205503,Amendment, Task 4 Barovic Properly Wetland Study Background At the request of the Lakehavent Utility District, ESA Adolfson, Inc. (Adolfson) identified and delineated wetlands within the 1.8-acres Barovic Property located at 35935 Pacific Highway South (1-99) in Federal Way, Washington (SW quarter Section 29, Township 21N, Range 4E) (Figure 1). This parcel is being considered as a possible location for the P33 Pump Station. The Barovic property lies on a relatively flat upland bench between tributaries of the Hylebos Creelc Watershed. The surrounding area remains as a forested and relatively undeveloped section of land along Elie Paci€ie Highway South corridor. Some residential development occurs witlrui 1,000 feet of the property. West Hylebos State Park lies within a quarter mile to the north, east, and south. A single-family residence with several out buildings are .located on the east end of the Barovic property, and a wooden roof was recently constructed over an existing well east of the home. Two gravel driveways enter the property from Pacific Highway South, converging into one driveway approximately 500 feet west of the entrance. Methods Two levels of investigation were conducted for the analysis of wetlands on the subject property; a review of existing information and an on -site investigation. Several Tesources were reviewed: U.S. Geological Survey (USGS), 1961 —Poverty Bay, WA. Topographic map; © National Wetland Inventory (NWI) Poverty Bay quadrangle (U.S. Fish and Wildlife Service (USFWS), 1989); ® WDFW Priority Habitats and Species (PHS) Data, October 2008; o City of Federal Way Wetlands Inventoty mapping (2005). .lurisdictional wetlands were identified based on field conditions observed at the time of the investigation and applying the wetland determination method described in the Washington State Wetlands Identification and Delineation Manual (Washington Department of Ecology publication No. 96-94, 1997). The Federal Way Municipal Code (FWMC) definition of regulated wetlands and buffers (FWMC 22.1356 and FWMC 22.1) was used to further determine regulatory constraints on the site. Areas meeting the three parameters required for wetland determinations were flagged or recorded with Global Positioning System (GPS) datapoints. Biologists Michael Muscari and Rosemary Baker from ESA Adolfson began the site investigation on February 4, 2009, and biologists Rosemary Baker and Laura Brock finished on February 5, 2009. Findings Existing in -Formation Data from the NWI/USFWS Wetlands Online Mapper does not indicate wetlands on the Barovic property, however immediately to the south a large palustrine forested wetland is mapped. As depicted by this map, the wetland to the south connects to a tributary of West Hylebos Creek. According to WDFW PHS data there are no wetlands or priority habitats or species located on the property. PHS data does indicate an off -site salmon -bearing tributary of West Hylebos Creels and Hylebos Wetlands to the north, west, and south of the property within one quarter -mile. Hylebos stream and wetland buffers do not extend onto the Barovic property. City of Federal Way Wetlands Inventory Mapping data (2005) also indicate a wetland on the parcel to the immediate south of the Barovic property, but no wetlands are mapped on the project site. Wetland A Wetland A is located on the property between the residence and Pacific Highway South (Figure 2) and is approximately 0.09-acres in size. Wetland A has a hydrogeomorphic (HGM) class of slope with both forested and scrub -shrub vegetation. Data plot (DP) 1 and DP3 describe the wetland. Data plot 2 is located in the adjacent upland. A small stream originates in the wetland (see stream description below). drolo The source of hydrology for Wetland A appears to be a groundwater -fed spring, as well as precipitation, and stormwater runoff originating from the house and driveways. A small ditch originating from the north driveway extends south through Wetland A, connecting to the on -site stream (see stream description below). No surface ponding or flowing water was observed in this ditch duringthe survey, Data Plot 1 was located ui a relatively flat area along the south edge of the wetland, within one foot of the flowing stream. Wetland hydrology indicators included saturation at 8 inches below the surface and ahydrogen sulfide odor. Data Plot 3 was located at the sloped north end of Wetland A. Satmatioin was present at the surface, and free water in the pit was found at 8 inches below the surface. An additional indicator of wetland hydrology at DP3 was hydrogen sulfide odor. Soils At DPI, the soil matrix was black (10YR 2/1) sandy loam from the surface to a depth of 3 inches. Between 3 and 13 inches below the surface, the soil was gravelly sandy loam with a black (10YR Jl) matrix color. Saprio peat was found at a depth of 22 inches. Hydric soil indicators at DPI include a thick dark surface layer and low clrroma below the surface horizon. At DP3, the soil was very dark brown (10YR 2/2) mucky sandy loam from the surface to a depth of 4 inches. Prom 4 to 8 inches in depth, the soil was a very dark brown (I OYR 2/2) sapric muck, with a few pieces of undecomposed wood. From 8 to 18 inches in depth, the soil was a black (1 OYR 2/1) gravelly sandy learn. The hydric soil indicator at DP3 was a histic epipedon., Veetation Wetland A contained a forested vegetation community. Dominant vegetation at DPI was red alder g (Alnus rubra), salmmnbeny (R-abus spectabilis), and creeping buttercup (Ranunculsrs r'eperrs). Dominant vegetation at DP3 was red alder (Alnus rubra), salmonberry (Rebus spectabilis), lady fern (Achy)-iurrt filix femir7a), and creeping buttercup. Other hydric vegetation observed in the wetland included small -fruited bulrush (Sckplfs microcarpus), youth -on -age (Tolineia nrenziesi), mannagrass (Glyceria spp.), Nootka rose (.Rosa nutkana), red elderberry (Sainbucus racemosa), and skunk cabbage (Lysichiton americarzuni).. The wetland vegetation criterion was met, as 100 percent of the dominant plants were hydrophytic ppecies. Wetland B Wetland B is approximately 0.01-acres in size, positioned at the northeast corner of the property, abutting both. Pacific Highway Soutar and a paved driveway (Figure 2). A very small portion of this wetland extends on Io the adjacent parcel to the north. The wetland and surrounding upland appeared to have been recently mowed, graced, and seeded with grasses. Some mowed shrubs were present in areas. Wetland B is a palustrine emergent wetland } in the depressional HGM class. Data Plot 4 characterizes the wetland and DP5 characterizes the upland. 4 • I H dr Ioo The source of hydrology for Wetland B appears to be a combination of precipitation and stonnwater froma ditch along the gravel driveway, and possibly runoff from Pacific Highway South. Groundwater discharge may also occur in the wetland. At DP4, saturation was present atthe surface and 2 inches ofsurface water was present in what appeared to be a wheel rut. Soils At DP4, the surface soil to a depth of 18 inches was 45 percent very dark gray (10YR 3/1) and 45 percent black (I OYR 211) gravelly sandy learn, with 10 percent pockets of sand located at 12 inches below the surface. Below 18 inches in depth, the matrix color was gleyed greenish gray (1 OY 5/1) sandy learn with cobble and undecomposed organic matter, with 1 percent light olive brown (2.5Y 5/6) redoxi-morphic features. Vegetation Wetland B vegetation is predominantly emergent with a few mowed or graced shrubs on the west side. 13oiuinant species were small -fruited bulrush, bsttercress (Cardamine spp.), salmonberry, and Himalayan blackberry (Rubus ormeniacus). Small amounts of reed canary -grass (P/talaris arundinacea) and American speedwell (Veronica americana) were also present. Wetland C Wetland C is located along the south property boundary and extends south of the Barovic Property (Figure 2). Only a small portion of this wetland is located on site. The north edge of this wetland lies within 10 to 20 feet of the south property line for most of the parcel. The on -site portion of Wetland C is approximately 0.01 acres in size and appears to be a depressional HGM class wetland with forested and shrub -scrub vegetation. Data Plot 9 describes the wetland however observations were limited by lack of access to the neighboring property. Data Plot 6, DP7, and DP8 describe the upland, H drolog Based on reference with a USGS topographic map, NWI maps, and visual survey from the Barovic property, the predominant wetland hydrology in Wetland C appears to be precipitation and groundwater discharge. In addition, a small stream (described below) originating in Wetland,A enters the northeast corner of Wetland C augmenting hydrology in the east portion of the wetland. Based upon review of existing information (USGS topographic maps, and NWI mapping) Wetland C is located on a bench above a tributary of West Hylebos Creek to the west. NWI/USFWS reaps indicate a surface connection between Wetland C and West Hylebos Creels and other nearby Hylebos wetlands. However, based on review of topographic maps and visual survey in the field, a north -south ridge appears to separate Wetland C from West Hylebos Creek. Although NWI and WDFW PHS streams and wetland mapping both indicate a hydrologic connection to the Hylebos tributary to the West, the City of Federal Way Wetland Inventory Map and the observed ridgeline to the west indicate a hydrologic connection: to the east of Pacific Highway South. We observed surface water from. Wetlands A and C flowing east into a culvert beneath Pacific Highway South. A hydrologic connection between Wetland C and.Hylebos Creels or Hylebos Wetlands to the south is also possible but is not known at this time due to lack of access to the site. Small areas of ponding were observed just off -site to the south, surface saturation was present, and the water table occurred at 6 inches below the surface on the project site. Other hydrologic indicators included water -stained leaves and drainage patterns. An outlet was observed from the eastern edge of the wetland, with water flowing east into a 1-foot diameter culvert as described below. Soils Wetland soil was black (10YR 2/1) muck fiorn the surface to 18 inches in depth. The soil was heniic in texture with undecornposed wood throughout. Below 18 inches, the matrix color was light gray (2.5Y 7/1) with less than 5 percent yellow (SY 7/6) redoximorphic features. Hydric soil indicators included a histic epipedon, thick dark surface, and a hydrogen sulfide odor. A gravelly sand restrictive layer was also found at 18 inches. Vegetation Observed vegetation in Wetland 3C include forested and shrub -scrub communities. Forested portions of Wetland C were dominated by red alder, salmonberry, Indian plum (Oernleria cerasiformus), and red elderberry (Sambucus racemosa) and false -lily -of -the -valley (Mianthemum dilataturn). Shrub -scrub portions of Wetland C were dominated by red -osier dogwood (Corpus sericea), willow (Salix sp.), and Hardhack (Spiraea douglasii). The wetland also contained numerous wildlife habitat features such as fallen logs and snags. Sti earn 1 The onsite spring -fed stream, originating in Wetland A, flows south out of the wetland through a small (four inch - diameter) culvert under the south gravel driveway, and drains south into adjacent Wetland C (Figure 2). After 4 entering Wetland C, the stream turns east and enters a ditch along Pacific High►vay South. On -site, the stream contained amuddy substrate and width varied between 1 and 3 feet. Regulatory ImplicatiOns Wetlands are regulated at the federal, state, and local levels. Agencies witlr jurisdiction include the U.S. Amry Corps of Engineers (Corps), Washington State Department of Ecology (Ecology), and the City of Federal Way. The Washington Department of Fish and Wildlife regulates work within streams. Regulatory implications associated with development in wetlands include, but may not be limited to, those discussed in this section. All applicable permits should be obtained prior to developing or otherwise altering steams or wetlands. Federal Regulations The Corps regulates discharges of dredged or Ell materials into waters of the United ei n tStates, including rains under lands, under Section 404 of the Clean Water Act. Tile Corps has established two typesp P S Section 404: nationwide and individual. Nationwide permits are issued when a proposed activity will have minimal adverse impacts to wetlands, All other projects are evaluated under the individual permitting process. The Corps determines which peTnitting process is used for a proposed project. The Corps will require that wetland impacts be avoided or minimized to tire extent practicable, and mitigation will likely be required €or unavoidable wetland impacts. State Regulations The state certification process under Section 401 of the federal Clean Water Act is usually triggered through a Section 404 permit application. Section 401 directs each state to certify that proposed in -water activities will not adversely affect water quality or violate state aquatic protection laws. hi Washington state, Ecology is responsible for administering the state certification program. Ecology may issue approval, approval with ,conditions, denial, or a request for delay due to lack of information. And conditions attached to the 401 certification become part of the Section 404 permit. I{ing County is one of the 15 coastal counties in Washington regulated under the Washington State Coastal Zone Management (CZM) Program. Activities that would affect coastal resources and involve approvals from the federal government (such as a Section404 permit) must be evaluated for CZM. compliance through a process call "federal consistency." The Washington State Department of Ecology administers the CZM program in this state. If relocation or alteration of stream culverts or other in -stream work is proposed as part of the project, aHydraulic Project Approval (HPA) would be required Rom the Washington Department of Fish and Wildlife under the state Hydraulic Code (RCW 77.55, WAC 220-110).. Local Regulations The Barovic property is located within the City of Federal Way. Critical Areas are discussed in the Federal Way Municipal Code under Article XIV, Chapter 22. The following describes the ratings for Wetlands A, B, and C and their regulated buffers as described in FWMC 22.1357. 6 Wetlands Wetland A merits a Category III rating based on size (approximately 0.09 ac/3,920 sf) and relatively simple vegetation structure (see Table 1 below). Wetland B also merits a Category III rating, however due to its small size, it appears to be smaller than the 2,500 sf threshold, and is therefore likely exempt from Federal Way regulation (see Table I below). The code is not specific on regulation of wetlands smaller than 2,500 sf in size. Wetland C received q tentative Category II rating based on: conditions observed from the Barovic property and from along Pacific Highway South, topographic maps, and assumptions made regarding connectivity to other wetlands in the area. However, this rating for Wetland C cannot be confirmed without access'to the adjacent properly. WDFW Priority Habitat and Species data did not indicate any "presence of species or documented habitat recognized by state or federal agencies as endangered or threatened, or extirpated plant, fish or animal species" in Wetland C. It remains uncertain whether Wetland C is contiguous with larger wetlands to the south, which might raise Wetland C to a Category I Wetland. Stream According to the definition of major and minor streams in the FWMC, the seasonal spring -fed strearn flowing through Wetland A into Wetland C and then into the ditch along Pacific Highway South, would be categorized as a minor stream (FWMC 22.1) (see Table 1 below). Minor streams receive a 50-foot buffer under FWMC 22.1306. Off -site to the south, the stream enters a small (1, foot diameter) culvert raider Pacific Highway South, which is likely a blockage to fish passage. Table 1_ Wetland and Stream Categories and Buffers Type Category Buffer (ft) Wetland A III 25 Wetland B III likely exempt Wetland C II 100 Stream 1 1 Minor Stream J 50 According to FWMC 22.1306, "no land surface modification or improvements may take place or be located in a stream or within setback areas..." Listed exceptions to this include any segment of a stream running through a culvert, unless that strearn will be taken out of the culvert as part of development on the subject property. Section 22.1307 of the FWMC states that stream relocation is permitted if the applicant submits a stream relocation plan that includes but is not limited to the following: specifications to create natural meander, gentle side slopes, application of erosion control measures, utilization of natural materials, revegetation using native riparian species, and creation of habitat and stream flows that best suit fish populations. The previous stream chamiel must also be falled and revegetated (FWMC 22.1307). Section 22.1312 states the city may permit the placement of an essential public facility, public utility or othei public improvements in a setback from a stream if they judge no feasible alternative location exists: Compensatory mitigation requirements for impacts to wetland habitat on the subject property are found in FWMC 22.1358 and are listed in the following table: Table 2. Federal Way Wetland Re lacement Ratios for Cafe ory Ix and III Wetlands Wetland Creation and Cate o Restoration Enhancement Cate n II: Forested 3:1 6:1 Scrub -shrub 2:1 4:1 Emer ent _ 2:1 _ 4:1 Cate o ill; Forested 2:1 4:1 Scrub -shrub 1.5:1 _ _ 3:1 Fmprrnanf 1.25:1 2.5:1 Attachments Figure 1 Vicinity Map Figure 2 — Site Map of wetlands and buffers 7 { Waterbodies I Parlm Lakehaveri Design . 26061.2 SOURCE: ESA Adolfson, 2009; King County, 2008 (2002Air Photo) Figure I Vicinity Map Federal Way, Washington 0 a N O O 00 O O N C 0 O U rn c 3 O O N C 0 42 O a w w ui U O rn (60/OUEO:If W) px-adeospuej sear puellaM Z06!d1SIEJ1LJkIsa4 uaneyaMel Z'4909Z1s1vafOJd 900Z%SiOVdWl LIIAN31:9 5309 Shilshole Avenue NW www.ado fson.com Suite 200 Seattle, WA 981or 206.789.9658 phone '206'789.9684 fax memorandum date December 24, 2007 'to Ken Canfield, Lakehaven Utility District from Karmen Martin; Ilon.Logan subject Lakehaven Utility District P33 Conveyance - Preliminary Evaluation Introduction This technical memorandum was prepared as part of the -Preliminary Evaluation Phase for the Lakehaven Utility District Pump Station 33 Conveyance Project. The purpose of our evaluation is to identify existing conditions that may iDfluence the siting of a new pump station (P33) and selection of an alignment for a new force main. The memorandum summarizes the results of ESA Adolfson's literature review and wetland reconnaissance for four alternative force main alignments and two pump station locations. Our evaluation consisted of a preliminary review of available literature and a field investigation to identify the presence of wetland and streams. Our evaluation also included a literature review to identify documented occurrences of threatened and endangered species in the project area. Project Description The Lakehaven Utility District P33 Conveyance Project includes the following components: ip Construction of a neW 4,500 — 0,000 GPM pump station- 4 Construction of a new 18 to 24-inch-diameter force main between the new P33 pump'station to the Panther Lake Sewer Trunk Line connection point at either manhole #1 located near SW Campus Drive and 2' d Avenue SW, or Manhole 8 located approximately 100 feet north of the 4th Place SW cul-de-sac (352°d block), approximately 1,300 feet south of Manhole 1. v Construction of it new 24-inch gravity sewer line in South 359th Street (west of 14th Place South) and in the existing pump station easement access road to replace an existing 12-inch gravity sewer line. The project area is located in the southern portion of the City of Federal Way (Figure 1). The project area is generally bounded by South 3481h Street on the north, South 359th Street on the south, 14th Place South on the east, and 7th Avenue South on the west. The force main alternative alignments are generally centered around the West Hylebos Wetlands Park. Single-family residential development is the predominant land use in the area located west of l't Avenue South and south of the project area. Commercial areas are located along Pacific Highway South and office uses are located north of South 348th Street. Pump Station Site Alternatives The Lakehaven Utility District has identified two alternative locations for the new pump station for preliminary evaluation (Figure 2). Site 1 is City -owned property located east of Pacific Highway South and south of South P33 Preliminary Evaluation i December 24, 2007 3590' Street. Site 2 is a private parcel located west of Pacific Highway South. The District would be required to get an easement from the owner of the site that is selected. At either potential site, the new pump station would require a construction footprint of approximately 100 feet by 100 feet. The finished pump station site dimensions would be approximately 75 feet by 75 feet (0.13 acre). Force Main Alignment Alternatives The District identified three conceptual alignments for the force main as part of the project pre -design. A fourth alignment (the District's preferred alignment) was identified in September 2007 and is also evaluated in this memo. The force main alignment alternatives, designated as Alternatives 1, 2 and 3, and the Preferred Alternative, are shown on Figure 2. The District indicated that a combination of horizontal directional drilling (HDD) and open -cut construction methods are being considered for these alternatives. Under all the alternatives, the majority of the force main would be constructed within existing roads or sidewalks, thus avoiding most impacts to streams and wetland areas. `The force main pipeline would be a maximum of 24 inches in diameter, and any permanent easements would extend on both sides of the pipeline. Temporary construction easements would be wider, and would also depend on the location of the staging areas and drilling shafts for the pipeline installation. 24-inch Gravity Sewer Line Construction of the 24-inch gravity sewer line would occur entirely within the built roadway of 359' ` Street and the access road for the pump station, except for that portion constructed from the access road to the pump station. No alternatives to this alignment were identified by the District. Methods Existing Information According to the National Wetland Inventory (NWI) Poverty Bay Quadrangle (USFWS, 1987) several wetlands are mapped on or in the vicinity of the project (Figure 2). The West Hylebos Wetlands are generally mapped as palustrine forested (PFO) wetlands with smaller patches of palustrine scrub -shrub (PSS) communities within the larger complex. Brook Lake and Marlake, which lie within the West Hylebos wetland complex, are mapped as open water wetlands that are permanently flooded. The dataset for NWI mapping was developed from aerial photograph interpretation and soil survey, with no field confirmation. Therefore, the NWI wetlands shown on Figure 2 do not accurately represent wetland boundaries, but rather give a general idea where wetlands occur. On a regional level, wetlands and streams in the City of Federal Way were identified in 1998 as part of a critical areas survey and are shown on the City of Federal Way Critical Areas Map (2005). The map shows three major streams extending through northeast and northwest portions of the project area near both of the proposed pump station locations. A branch of Hylebos Creek is mapped near both of the proposed pump station sites (Figure 2). The Soil Survey of King County Area (Snyder et al., 1973) maps several soil types in the project area that can often indicate the presence of wetland (hydric) soils. These soil types include: Bellingham silt loam, Seattle muck, Norma loam. The mapping of these soils types is generally consistent with the locations of wetlands identified on the City's critical areas map. A search of the Washington Department of Fish and Wildlife (WDFW) Priority Habitats and Species database found that no threatened or endangered wildlife species listed under the Endangered Species Act (ESA) are known to occur in the project area (WDFW, 2007). The closest known bald eagle nest is approximately 1.5 miles northeast of the project area on the east side of I-5. Priority fish species present include coho salmon in the portion of Hylebos Creek that flows from the center of the project area south and West Hylebos Creek located east of the existing pump station site. Winter steelhead are also present in West Hylebos Creek, which were recently listed P33 Preliminary Evaluation 2 December 24, 2007 as threatened by NOAA. Downstream reaches of Hylebos Creek are known to support Chinook salmon, an ESA listed species (WDFW, 2007). Field Investigation Adolfson staff Steve Krueger, Ilon Logan, Aaron Booy, and Karmen Martin conducted field investigations of the pump station locations and alternative alignments in October 2006, and August and October 2007. The on -site investigation of wetlands followed the methods outlined by the Washington State Wetlands Identification and Delineation Manual (Ecology Publication No. 96-94, March 1997), which is consistent with the methodology used to identify and define wetlands using the 1987 Corps of Engineers Wetlands Delineation Manual. The reconnaissance was performed during the late growing season after a period of low rainfall. Visual observations and soil investigations were made from existing utility easements and right-of-way. No formal data plots were established. Result; Pump Statibn Site 1 Adolfson staff investigated both sides of the paved road that provides access to the existing pump station from South 359`h Street. Our investigation focused on approximately 100 feet from the edge of pavement. The areas investigated are shown on Figure 2 and identified as "pump station study area." On the west side of the access road, we identified a forested wetland that covers the majority of the pump station study area. The boundary of the wetland is located approximately 25 feet from the edge of the access road for the, entire road length, between. South 3590' Street and the existing pump station. Given the footprint needed fqr the: pump station, avoiding this large forested wetland would not be feasible. On the east side of the access road, a stream and forested wetland are present, but are located further from the edge of the pavement. The stream is a seasonal channel that connects to West Hylebos Creek to the east. The wetland boundary is closer to the access road at the southern end of the access road (near the existing pump station). Two potential sites for the pump station were identified on the east side of the access road: Site lA and Site 1B. Pump Station Site IA. Near South 359 b Street, the wetland boundary appears to be at least 100 feet from the edge of the pavement of the access road. Construction of the pump station at this location appears feasible and would avoid direct impacts to the wetland (Photo 1). Pump Station Site 1$. North of the existing pump station is an area of historic fill that does riot exhibit wetland conditions.. A narrow ditch or swale is adjacent to the paved road on the east side located just north of the existing pump station. The swale conveys surface flows and meets wetland criteria. Construction of the pump station at this -location also appears feasible as it would avoid impacts to the larger wetland associated with the stream, but would result in impacts to the narrow swale wetland (Photo 2). Both Site 1A and Site 1 B would result in wetland buffer impacts and require review and approval by the City of Federal Way Department of Community Development under the City's Critical Areas Regulations. If either site is selected, several options are available under the City's Critical Areas Regulations (Federal Way Municipal Code (FWMC 22-1359). Under FWMC 22-1359(c) Structures, Improvements and Land Surface Modification within Regulated Wetland Buffers, the Director of Community Development may permit the placement of a public utility or other public improvements in a regulated wetland buffer if it is determined that no feasible or alternative location exists "based on an analysis of technology and system efficiency." The specific location and extent of the intrusion into the buffer must constitute the minimum necessary encroachment to meet the P33 Preliminary Evaluation 3 December 24, 2007 requirements of the public facility or utility. Other options may be available, including buffer averaging (FWMC 22-1359(b)) and would need to be discussed with the Department of Community Development. Site 1B would require placement of fill in the narrow swale wetland north of the existing pump station. This would trigger review by the U.S. Army Corps of Engineers (Corps) and the Washington Department of Ecology (Ecology) under Section 404 and Section 401 of the Clean Water Act. A Nationwide Permit (NVWP) from the Corps would likely be required. The appropriate NWP would be determined by the Corps upon their receipt and review of a completed JARPA application. Because a Corps permit would be required, Endangered Species Act (ESA) Section 7 review requirements would be triggered. The timeline for review/issuance of a Corps NWT (including an ESA Biological Evaluation) varies considerably, but generally granges from four to nine months from submittal of permit application to issuance. This wetland is likely below the size threshold (2,500 square, feet) for regulated wetlands in the City of Federal Way. Locating the new pump station closer to South 359s' Street (Site 1A) would avoid any direct wetland impacts and would thereby avoid the need for a federal permit. Photo 1— Site IA: Area of upland on east side of access road (from access gate at S 359' Street facing SE) P33 Preliminary Evaluation 4 December 24, 2007 Photo 2 — Site 1B: North side of existing pump station: Narrow wetland swale is present parallel to road. Pump Station Site 2 Adolfson investigated undeveloped portions of a private parcel that abuts Pacific Highway South (Figure 2). Investigations extended approximately 100 feet west of the edge of road pavement. Approximately 50 feet from the road, a stream originates fznm a spring near the center of the site. The stream flows to the south and provides hydrology for an emergent wetland that extends west and south. Construction of the pump station at this location would result in direct impacts to wetlands and streams. Unlike the allowances in the critical area regulations for utility construction in wetland buffers (described in relation to Pump Station Site 1), there are no similar allowances or provisions within the City's critical areas regulations for utility improvements within regulated wetlands. It is expected that a "Modification" from critical areas requirements under FWMC 22-1358(d) would be required using City permit process IV. Permit process IV requires a public hearing and a Hearing Examiner's decision. Mitigation for wetland impacts would also be required. This process is lengthier than the critical areas -review described for Pump Station Site 1 and would be costlier in terms of providing mitigation for wetland impacts. In addition to City requirements, the excavation or the placement of fill in wetlands would trigger review by the Corps and Ecology under Section 404 and Section 401 of the Clean Water Act as described above for Pump Station 1B. ESA Section 7 review requirements would also be triggered. In addition, if the stream were impacted by construction, a Hydraulic Project Approval (HPA) would be required from Washington Department of Fish and Wildlife (WDFW) for any in -water work, P33 Preliminary Evaluation 6 December 24, 2007 Force Main Alternative I Alternative 1 includes construction of the pipeline entirely within built roads or road .shoulders with the exception of a small section at the intersection of I" Avenue South and South 348" Street (see Figure 2). At this location, the pipeline alignment is proposed within an existing utility easement located below street elevation, west of 18� Avenue South- We were able to locate the casement corridor by locating manholes in the field. No wetlands appear to occur within the easement or adjacent to the easement. Hylebos Creek is located west of the easement, flows south and eventually crosses below I" Avenue South through a culvert. Alternative 1 crosses Hylebos Creek and associated wetlands where it flows under South 356'` Street. At this location, we understand that the pipeline would be constructed using directional drill methods that would bore under the existing culverts along the outer edge of the right-of-way. Boring under both streams and associated wetlands would avoid impacts, but could require an HPA from WDFW. Staging areas for drilling equipment would also need to be located outside of wetland and stream buffers to avoid impacts to these locally regulated critical areas. Force Main Alternative 2 Alternative 2 includes construction within an existing 10-foot easement that parallels an unnamed stream between South 35l" Street and South 348's Street (see Figure 2). During our investigation, the strearn was dry through the entire section. No wetlands appear to be associated with the stream in the southern half of the corridor. In the northern half, the stream channel widens and forested wetland is present on both sides of the stream. We found pink flagging in the field (dated 12J5/05 by Parametrix, Inc.) marking the edge of the wetland and the ordinary high water mark of the stream and agreed with the flag locations. Wetland areas do not appear to extend into the easement corridor east of the stream. Thus, it appears that construction of the pipeline would only result in impacts to stream buffer and would likely be granted an exception or variance from the City of Federal Way; We recommend limiting tree removal to the greatest extent passible in this section. A -portion of the alignment would parallel an existing 10-inch force main located in an easement that occurs just east of Pacific Highway South. We were able to locate the: easement corridor by observing orange stakes that mark the corridor centerline. A scrub -shrub and emergent wetland is present within the easement corridor for approximately 175 feet between South 3598` Street and a gravel pullout east of the highway (see Figure 2). The wetland appears to extend to the east eventually connecting to Hylebos Creek. At this location, the pipeline would be constructed entirely within the road prism and would avoid impacts to the wetland. P33 Preliminary Evaluation 6 December 24, 2007 Photo 3 — Stream at South 34e Street (10-foot easement to right of stream) Force Main Afterna#ive 3 Alternative 3 follows an existing pipeline in a 20-foot wide easement through The Reserve apartment complex (see Figure 2). No wetlands or streams occur within or near the easement. South of the apartment complex, the alignment turns east and extends downslope through upland forest dominated by large conifer trees. The alignment continues through forested areas until connecting to 1" Avenue South. The forest is primarily composed of mature Douglas fir and western hemlock with some western red cedar also present. Construction along this alignment would potentially impact a large number of these mature trees. No wetlands or streams were located in this area. The remainder of the alignment follows the mute described under Force Main Alternative 1 above. This alternative would cross Hylebos Creek at multiple locations, including one on S 3561s Street and two places on I" Avenue S. It is our understanding that the District intends to directionally drill below or construct the pipe over tic cuivert sections of Hylebos Creek at all crossings. Boring under both streams and associated wetlands would avoid impacts, but could require an HPA from WDFW. Staging areas for drilling equipment would also need to be located outside of wetland and stream buffers to avoid impacts to these locally regulated critical areas. P33 Preliminary Evaluation 7 December 24, 2007 Force Main Preferred Alternative A Preferred Alternative was identified by the District in September 2007 and is shown on Figure 2. The Preferred Alternative follows much of the same route as the alignment sections described under Alternatives 1, 2 and 3 above. Near The Reserve apartment complex, this alternative would utilize existing roads/driveways to avoid construction through the mature conifer forest. No additional wetlands were identified along this alignment during our October 2007 field investigation. The route would cross Hylebos Creek at multiple locations, including one on S 356`s Street and two places on 1" Avenue S. It is our understanding that the District intends to directionally drill below or construct the pipe over the culvert sections of Hylebos Creek at all crossings. Boring under both streams and associated wetlands would avoid impacts, but could require a HPA from WDFW. Staging areas for drilling equipment would also need to be located outside of wetland and stream buffers to avoid impacts to these locally regulated critical areas. 24-inch Gravity Sewer Line Construction of the 24-inch gravity sewer line within the built right of way of 359`h Street (see Figure 2) would avoid impacts to wetlands, streams, and wildlife habitat. Construction within the access road to the pump station site would similarly avoid impacts. Construction of the connection point from the access road to the pump station would have the same issues as discussed above for Pump Station Sites IA and 1B. Alternatives Evaluation Summary. Pump Station Site Based on our investigation of the two pump station sites, the least encumbered location for a new pump station would be at Pump Station Site 1 on the east side of the paved access road and abutting South 359h Street (Site 1 A). At this location, construction of the pump station would likely result in wetland buffer impacts, but not in impacts to wetlands or streams. Placement of the pump station as close as possible to the existing road would minimize the amount of buffer impacts. Locating the new pump station on the north side of the existing pump station (Site 1B) would likely result in some minimal impacts to the wetland swale located next to the paved road, as well as buffer impacts. The wetland is very small and likely below the size threshold (2,500 square feet) for regulated wetlands in the City of Federal Way. However, placement of fill in the wetland swale would require permit review by the U.S. Army Corps of Engineers and Washington Department of Ecology under Section 404 and Section 401 Clean Water Act requirements and compliance with Section 7 of the Endangered Species Act, Impacts to the buffer at either pump station location at Site 1 would require review and approval under the City of Federal Way Critical Areas Regulations. As part of the project's review under the critical areas regulations, the District will need to establish that no feasible or alternative location exists based on an analysis of technology and system efficiency and that the location constitutes the minimum necessary encroaclunent into the wetland buffer to meet the utility requirements (FWMC 22-1359 (c)). We recommend that we discuss these requirements with the Department of Community Development during Task 2 to establish the requirements and criteria. Force Main Alignment Based on our investigation of the four force main alternative alignments, the alternative that would have the least impacts to wetlands and streams would be the Preferred Alternative. Alternatives 1, 3 and the Preferred Alternative would all have crossings of Hylebos Creek that would be bored, but could require an HPA from WDFW. P33 Preliminary Evaluation a 'December 24, 2007 Alternative 1 would have stream buffer impacts in the northwest portion of the alignment. All other impacts would be avoided as long as directional drilling and staging on South 356s' Street occurs outside wetland and stream buffers. Alternative 2 would result in buffer impacts to the stream in the northeast portion of the alignment, north of South 351't Street. Construction of the pipeline would require removal of trees in the riparian area of the stream. While Alternative 3 would not involve impacts to any wetlands, streams, or their buffers, it would require extensive tree removal. The Preferred Alternative utilizes existing roads/driveways to avoid extensive tree removal and impacts to wildlife habitat in its northern portion. impacts to wetland and streams and wetland and stream buffers would be avoided as long as directional drilling and staging areas occurred outside of these areas. None of the alternatives are expected to have impacts on threatened or endangered species. Impacts to listed fish species should not occur if all in -water work within streams is avoided. Based on this review, the Preferred Alternative would be the only alternative to avoid wetland, buffer, and. significant tree impacts and is, therefore, expected to have the lowest degree of permit complexity. The highest degree of permit complexity is associated with Alternative 2; however, we do not anticipate that permitting would be a significant obstacle to completing the project. Under the City of Federal Way's Critical Area Regulations, mitigation is required to restore or improve critical areas to offset these impacts. It appears that. mitigation can be accomplished onsite through restoration and/or enhancement. Within the next ten years, the City of Federal Way is planning to make major improvements to both I" Avenue and 356 h Street along the potential alignments for Alternative 1, 3, and the Preferred Alternative. These road improvements could cause disruption or require the District to make modifications to sewer systems located within these roads. Alternative 2 would avoid these planned road improvements / utility conflicts. Summary of Impacts Pump Station Site Pump Station Site lA (abutting 359") Pump Station Site 1B (north of existing PS site) Pump Station Site 2 planned Road Direct duffer Stream Significant Improvements Wetland: Impacts Crossings Tree Impacts / Utility Impacts Conflicts X X X X �J Force Main Alternatives 4 Force Main Alternative 1 Force Main Alternative 2 X Force Main Alternative 3 Force Main Preferred Alternative P33 Preliminary Evaluation X X _ X X X X - �.- 9 X X — X -- December 24, 2007 Limitations Within the limitations of schedule, budget, and scope-of=work, we warrant that this study was conducted in accordance with generally accepted environmental science practices, including the technical guidelines and criteria in effect at the time this study was performed, as outlined in the Methods section. The results and conclusions of this report represent the authors' best professional judgment, based upon information provided by the project proponent in addition to that obtained during the course of this study. No other warranty, expressed or implied, is made. P33. Preliminary Evaluation 10 December 24, '2007 References City of Federal Way. 2005. City of Federal Way Critical Areas Maps. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1 U.S. Army Engineer Waterways Experiment Station, Vicksburg, Massachusetts. Snyder, D.E., P.S. Gale, and-R.F. Pringle. 1973. Soil Survey of King County Area, Washington. U.S. Soil Conservation Service, Washington, DC. USFWS (US, Fish and Wildlife Service). 1987, National Wetland Inventory (A%7) .poverty Bay quadrangle, WDFW (Washington Department of Fish and Wildlife). 200.7, Priority Habitats and Species (PHS) database ,search. P33 Preliminary Evaluation 11 December 24, 2007' WASHINGTON STATE KING COUNTY sar+r iu• :`• -- is�4s pVim. 33 _ HITBAA �;'�ING'� EUW' �� �- •e - _ r •'��.:il"'��_; �• l�. PIS . fTIThS µ l •' —? _ ,a• to PROJECT SRE fir..=.�nr. .��.... .- _. "..i ". •. "�r� 'FS ` PROJECT AREA Ao; N ;r i �. a� '�• � , -'s`�. �r 7' it • .4• e '', ram, �`• ' _ 7� .:._� - �3 . __`c7C.-' ems: •-' •>�v+ •{ - ,';.: . •._----• fL Ly ,,• -4= _Y!! ".. f.-• . :s-'• . .�1- �r'':.' "-i..• z!, ss3'. •`Yi r' - x�.- ��_. ::•- mom. � �•'� _$• . ''' =�u' �4��'•�•�"° Ar 7 • - .rti ��' "•c- �� 1 r • - �. i ,�. 'Sw of-� � � . � ~ �i_'.' r1 max, .• a '. zay:4 rxa: i L ski L sY f3 L 8 rf ;• 7f ' r�.aq • .::c:_ '�A: s raa �s� � `# '1 Y ril .L'• ti R : i.Gn^. "tea ..:. •fief -1. •. 'II'' 1 r-''i,, y, . jn' __ •1`M� A -113y� yy s` ': =.. — • Ff a Tara t"` []T�i it --------------- �µ =:vi x ,,.i Y[• f i:k.:i=Ri. l�1y�S ib* ice'. '`� �, a <' ; � i • ` 3 ; j^'r' �,,-'#' L ,. •- L`.•.rrcl�_ ' ' �•- :Y���+" � s�� s -� :::Jk •1 � .*x ' ,� � • . . _ .�„`: �:�;"._fir � - . ''s i7.�;s� �_ • ��" � _�:�. :fie:.' f tl4 Tom•• � l:� ram. ai Y:`t �`��• ''�io" rr•, y. -S .. _ .G.�i-^:-':_..vM1` ¢y Y pl_.. .' a _ _�. �y1ilF• i_ fy •' -% _ .' .•:.�: .� ;. `� -�_ �:}� .. a' `�'{" sY tea" 0 1000 2000 4000 r.. i� "..•�:.�.�,�.•,�.:y ram; . �:�. A,�ki Y _„� �' • ice: a Scale in Feet AlJ. SOURCE: Rand McNally & Company, 2006, Lakehaven Utility District P33 Conveyance Project. 26061.1 Figure I Vicinity Map Federal Way, Washington N C A O O O lA9 V C. 3 cn d m is m3 3 3 mcn r m f m f! o - -n CL C•C 'O __ C Cl) � w � 3p'r92 j C N � (pi W CDm z.a aros Y rr Y I OL d tr fA I = � or I 7Pe_�ve5 1 •` Al -il—D(urkrs f/r � a�y=p •;+ 9t7L+Wa•5 �` It N Y 9 m a a•Oj s' .n+•. I I AAI wzr+.af,i Q AA U u,1.�r— Nar>► sox � piwv- P t lv v t �S AA8 05 sv,s: �A Lwqz�, �' = I�PGAtJQ ® DATA lzq�� LDM-rloAl .. _.. , k P P R-o il- 5112ZONI W-Anj w 140 Lz �T M At X7 P qr Pa ! 115 r �`Tr�rrri r (' ��N►� Y EIVED 12 2015 EDERAL WAY �DS • - Ak RECEIVED pUG 12 Z015 CITY OF FEDERA►- WAY CDs June 4, 2015 Ken Miller, Engineering Manager Lakehaven Utility District 31627 1st Ave South PO Box 4249 Federal Way WA, 98063-4249 Dear Mr. Miller, Jim Ferrell, Mayor O� 1 I have reviewed the plans for your proposal detailed in your letter dated May 7, 2015. 1 personally visited the site and I am in agreement that you can proceed with the relocation of the pump station. Please prepare the easement documents for our Legal Department to review and I will route for signature. Sincerely, 6 ohn R. Hu t7 Parks Director 33325 8th Avenue South, Federal Way, WA 98003-6325 e (253) 835-7000 • www.cityofederalway.com 1 r' CITY OF Federal Way RECEIVEDMASTER LAND USE APPLICATION DEPARTMENT OF COMMUNITY DEVELOPMENT AUG 12 2015 Federal 33325 W' Avenue South Way, WA 98003-6325 253-835-2607;Fax 253-835-2609 CITY OF FEDERAL WAY www.cilyoffederalM.com CDS APPLICATION No(s) _ I5 0 0 Date AuLust 12, 2015 Project Name Pump Station 33 Gravity Sewer Line and Force Main Property Address/Location Vicinity of Pacific Highway South and South 359`h Street (See enclosed vicinity man) Parcel Number(s) See attached Pump Station 33M, Gravity Line and Force Main Project Summary for Parcel List Project Description Project includes construction of a 12foot diameter submersible Rump station wetwell 919 feet of 24 and 48 avi sewer i e• and 919 feet of 20 inch force main See attached vroiect summar PLEASE PRINT Type of Permit Required Annexation Binding Site Plan Boundary Line Adjustment Comp Plan/Rezone Land Surface Modification Lot Line Elimination _X Preapplication Conference Process I (Director's Approval) Process II (Site Plan Review) Process III (Project Approval) Process IV (Hearing Examiner's Decision) Process V (Quasi -Judicial Rezone) Process VI SEPA w/Proj ect SEPA Only Shoreline: Variance/Conditional Use Short Subdivision Subdivision Variance: Commercial/Residential Required Information RS35: SE: OP Zoning Designation Comprehensive Plan Designation Value of Existing Improvements Value of Proposed Improvements International Building Code (IBC): Occupancy Type Construction Type Applicant Lakehaven Utility District Name: Ken Miller, P.E., Engineering Manager Address: 31627 15t Ave. South: P.O. Box 4249 City/State: Federal Way, WA Zip: 98063-4249 Phone: (253) 946-5405 Fax: (253) 946-9552 Email: kmiller@lakehaven.org Signature: Agent (if different than Applicant) Name: Address: co,k City/State: Zip: Phone: Fax: Email: Signature: W—, (_,C_,VA Owner , Name: . Address: n City/State: Zip: Phone: V Fax: Email: Signature: Bulletin #003 — January 1, 2011 Page 1 of 1 k:\Handouts\Master Land Use Application 21' 20' LH SIDE ELEVATI❑N 1( 6 MS-2 MANUAL VENT iTYP 2 PLCS) 1l[I7E�t+1 a���1��g1l11■ !�„� �fR��1 ■Is•�>EN�lt[�R n■i� n�■�r �n�mmim��mm��� i rm� �� n ��mnnn■>!r �m�u�m�rm�m�>f!■■��m �mn �innnmm� mm��rm■,,,�Ir�l� �r 1'-6" 10'-6" DESIGN CRITERIA, GENERAL NOTES APPLY TO ALL PANELS UNLESS SPECIFICALLY NOTED ❑THERWISE 1997 UBC LOADS, WIND: 120 MPH EXP C SEISMIC, ZONE 4 SNOW: 250 PSF ROOF LOAD FLOOR LIVE LOAD: 400 PSF MATERIALS, CONCRETE, F'd = 2500 PSI F'C = 5000 PSI STEEL: REBAR=ASTM A615 GRADE 60 WELDING NOT ALLOWED MIN LAP SPLICE IS 40 DIAMETERS ALL MESH IS 4x4xW8xW8 MIN. MESH LAP IS TWO SQUARES MESH IS TO BE CENTERED IN PANEL PLATES & BARS=ASTM A36 Fy=36 KSI 3ANEL THICKNESS, FLOOR = 5' WALLS = 4' R❑❑F = 4 1/2' COLOR, SEE MI FRONT ELEVATI❑N TEXTURE: WALLS - BARNW❑❑D ROOF,- CEDAR SHAKE FK' ll EFEER1E N C F 5 ONLY i 5" -J 10'-6" 4" 9'-10" 4" BILL OF MATERIALS 11MICI l- IW+ 6068 RH ACTIVE DOOR AMBLY PREP FOR DFAO BOLT OPENS OUT AUTOMATIC W ON 6' THRESHOLD FLUSH MOUNT BOLT ASTRAGAL SPRING HINGE 4.5 x 4.5 SCHALAGE DEAD BOOT LOCK {LASS ROOM LEVER FLAT BAR 1/2' x 5HR x 4`-2' AP17cr"IE vow RECEIVED AUG 12 2015 CITY OF FEDERAL WAY CDS 11cXT Precast Products PHQ= WU 10.5' x 20' SCHWEITZER NOME the inforration contained herein is proprietary and the exclusive property of CXT Incorporated. The informotica may, only be used by the vriginol recipient for the purpose Mended. Reproduction or distribution of this information Is strlt$y prenihited without the prlcr written consent of CXT IacarpvroIII . By allowing use of this Information, CXT Incorporated grants no warranty, exprera or implied, including a warranty of merchantobMty or of fitness for o particular purpose- CXT Incorpcj at ee DAIE SCALE I1/47=1--0" BATE 0Ei-05—()6 ORAYlN l) ERf tER FlLE NO. PO—SW2001 CHECifEE3 PLOT 48 BUILDING ELEVATIONS RH SIDE ELEVATI❑N REAR ELEVATI❑N TYPICAL SECTION No+ S H7 REV. 10.520-01 4" I1 r LUuK F LHIN Tr R:,.,., WALL TO WALL C❑NNECTI❑N OUVII REFERENCE ONLY ` ';,NLif T1 11 PS-2 4 5" i R303 --' PS-19 --' WALL TO FLOOR C❑NNECTI❑N T) 21' ROOF PLAN M9 4 n -- 4" WALL TO ROOF C❑NNECTI❑N 1n 3M K 5UYirm ft 17 R XA =6 Eff Precast Products W K Kghuoy 77 fii *oro, TX 76045 ""arnle 10.5' x 20' SC14WEITZER CXT SWARD EUlEL M ;no E,ra�r�lriwxa ErYn M 7 d IX[ i=pxmL 1FA I�6xnnUcq mar odr L� me a rH w..h9 rrc ^ms , „tir1rL Fra4tiUi c! dcL Prf�Ni �p � ra!m rye M Yw G! LtiC i�S�wlSat, pr#liep a d muNra`t�:3y rs s! Eaaa !v a CIT •avPaatad PLAN VIEW 6'A:7 He.. 571iiY FLN. 10.520-02 U z w z 0 ul N GENERAL NOTES: PREP AND PAINT ---CLEAN TO SPEC SSPC—SP1 —PRIME w/TWO COATS OF EPDXY PRIMER —TOP COAT w/TWO COATS OF SEMI —GLOSS POLYSILOXANE PAINT. —COLOR IS TBD EXTERIOR WALLS & ROOF —WALLS: 5" DEEP 12 GAUGE GALVANIZED STEEL FORMED PANELS APPROXIMATELY EVERY 16" —ROOF:5" DEEP 12 GUAGE GALVANIZED STEEL WITH CROSS MEMBERS APPROX. EVERY 24" ROOF HAS A 1" PEAK TO MINIMIZE PONDING. —ROOF IS SEAM WELDED CONSTRUCTION. ATTENUATION —65dBA®23' IN A FREE FIELD CONDITION ELECTRICAL —ALL WIRING IS SURFACE MOUNT IN EMT CONDUIT. 76" _ 72" is' OPENING � I I i iI i _..._.._..............._. -IIs_ II I N J SECTION B—B INTAKE ia: C9 Z co W a 0 ta N ul 0 N U r W 20' SQUARE - EXHAUST OPN w/RAINSHIELD PLAN VIEW 010" SPECIAL- APPLICATION EXHAUST SILENCER jam, all wr:_ i n B " '••4' +� •• 's i •d a•' 1_117 iNG LUG 600 US GALLON 4 PEES SUBBASE TANK 4g" 216'hMN BODY LENGTH [2110 l� 312' DAL SECTION A —A HIP LOOSE ITEMS EQUIPMENT INSTALL —MUFFLER ELBOW w/RAIN SHIELD PRE —FITTED —ALUM—TEK TO INSTALL CLIENT SUPPLIED AND TO BE REINSTALLED BY OTHERS, GENSET, ISOLATORS & BATTERY CHARGER. BASE WEIGHT —600 US GALLON 12" DEEP ULC S601 FUEL TANK WITH LIFT LUGS, ELECTRICAL ,d —APPROXIMATE WEIGHT: 32,000 lbs. STUB —UP AREA,6" GENERATOR SUPPORT a- (ENCLOSURE, GENSET & DRY FUEL TANK) I —BEAMS. NORMAL VENT m®r W DISCHARGE HOOD VANE NOTE: ENCLOSURE IS REMOVABLE FROM FUEL TANK USE LIFT LUGS ON ROOF *USE LIFT LUGS ON TANK TO MOVE ENTIRE UNIT z z CONCEPTUAL ONLY NOT FOR APPROVAL 0 na" new UVtNINU SECTION C—C Z,n Dingy n INDUSTRIES LTD., ALDERGROVE, FEB.17 2011 BRITISH COLUMBIA, V4W 2Z6 ctiK wr Eric Peura MACHINERY CABINET FOR A 500kW DFEK o ONAN GENSET,600 US GALLON SUBBASE TANK wp sr GENERAL ARRANGEMENT AND NOTES DAM CLIENT. CUMMINS NORTHWEST PROJECT. NO. PROJECT:LAKEHAVEN PS 33B SMUE mvdm Ma I Mir. M. 1 1 -908-1 RECEIVED AUG 12 2015 CITY OF FEDERAL WAY CDS L 1` 2 I 3 4 5 6 7 8 A B cl D E FI GI Cf T.P. SIZE TYPE DESCRIPTION 01 6° FLG FAN INLET 02 0.51 SOC CLIENT WATER SUPPLY 03 1,5" SOC TO CLIENT DRAIN 04 12' N/A VESSEL EXHAUST 3 1 4 1 5 10 9 12 mi B c D E 12 140 ur�ss RECEIVED AUG 12 2015 CITY OF FEDERAL WAY F CDS G THIS DOCUMENT EMBODIES APPRAVAL NAME DD/w/YY CL1EIFfl --^ —•. DESIGNS AND INFORMATION PROPRIETARY TO BIOREM. IT IS DRAWN NY, B,D. 12/11/09 TO BE USED ONLY FOR THE DESHM It B.D. 12/11/09 SK-450 PURPOSE AND BY THE ENTITY FOR WHICH IT WAS ORIGINALLY 12/i1/o9 m� SK-450 GENERAL ARRANGEMENT SUPPLIED, THE DOCUMENT MAY NOT BE DUPLICATED, APPROVED BY, 12/11/09 DISCLOSED TO ANY OTHER m�+ts� n BIORE----;IMWITHOUT PERSON,ENTITY, OR USED FOR MANUFACTURER OF THE PART OR IN WHOLE WRITTEN CONSENT BIOREM, ACT' XX)()(FITEMIN H 2 D➢ENSIIIIS >N piCHES L �p C� FpACTja t 02 2 PLACE DEC tA30 m *±Ir , 1118 SIZE B FFAWlNG NU}DiEA SHT 20F 10 SK450-GA-000 REV'OF 9 6 1 7 8 9 10 11 1 12 VE F DESCRIPTION TANK ASSEMBLY WATERBOX PANEL WITH NUTRIENT ADDITION NYB FAN CGI 126 CW UB SK SKID 12' Nutrient Tank Sub Assembly, 26 Gallon, as per, Biorem Dwg 02-20-00005-FAB ELECTRICAL PANEL I ump, 316SS, Centrifugal, Vertical, 460/3/60, T C Direct DriveMotor 0,75HPe3439RPM, Includes: 1,25' Flanged Connections G Butterfly Valve, PVC, EPDM Indicator with Cher�line Gauge Isolato 0-100 si, 0-700 ItPa, Dual Range, 31G SS, Botto p Mount 1ual MNPI DUCTING ASSEMBLY 4 5 QTY, 1 1 1 1 1 1 1 1 1 1 CLIENT DRAIN CONNECTION (TO BE P-TRAPPED BY OTHERS) CLIENT WATER SUPPLY NOTE; WINTER ELECTRICAL PANEL 06-03-00001 IS USED IN COLDER CLIMATE, THIS DOCUMENT EMBODIES APPROVAL NAME ➢ESIGNS AND INFORMATION DRAWN BY, B.D. - PROPRIETARY TO BIOREM. IT IS TO BE USED ONLY FOR THE DESIIdED DW B.D. -. M PURPOSE AND BY THE ENTITY FOR WHICH IT WAS ORIGINALLY CHECKED n DOCUMENT MAYPNOT BEHDUPLICATED, APPROVED DW DISCLOSED TO ANY OTHER u mK � � PERSON,ENTITY, OR USED FOR MANUFACTURER OF THE � ITEMIN PART OR IN WHOLE T Ary�p BIORE"mWITHOUT WRITTEN CONSENT FTtACTDSiS v32 OF BIOREM, 2 PLACE DEC. �m , DEC. A 7 A 9 DD/MlVYY 12/11/09 12/11/09 12/11/09 12/11/09 Sm, 1i24 in CLIENT TITLE, PROICT,Pressure nB 7 SK-450 SK-450 GENERAL ARRANGEMENT XXj(XF DRAWDIG Nl1DFfb SHT IOF 10 Rom' SK450-GA-000 9 11 1? 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'�1 �• �. _ .r_� -� V+. •� � ,j,; aI!�-4jf*. +l. �l � ..r. �'`f., �� M_''.��•i.���7�y_-=K�h'�,', '7' ,� i T 4', .. .� - 1 __ = - —..�_ __ice: '� P.7�„r� eta r` - -'�� ..r'�• �r •irk' ''+ R-S1• +'; i f��«�; ..r:- Yy11'� `• '!l 'til..- �~ -. --,�'- !i f i '. •,w .�"t - - .,fir, , '�'� � 1 . Y ;�'' e R •, • ,�+ , � ,r '-''� r.t'�,���'ai'J�•blafi�-;1',�.- �,rR: .1. '•'� � •, ••5 , �� �� ) '�i1 i f-` _ .�_All ' _��•-F it �r-�_ rj�' ^'1��•• �'�'-4". 'r r;F� •�' w� �� �:I �� �1 ^/ - ., . •. �y`fA���r _ ... _ 1r .- •rye do c. 06 ..... ..... - - �" - - - - .�: '.1. �. - -�^- --{: -.., _ _-- Via'. .�.. - �-.':• Yt .._ ";U 'iF' �tC;l. .YN,.;' •: r>�-v'`-S•�4r•�`Y:-,C.' •^,�. f �. ,,:-•ta: _ ^� :.;�,.:: •r•^sr-r:-:.^� •�:+ - i' -,l- . _ a.-. - ----- - {��~ — -- --.- .-' ,'r.. ---..?+��=7e:_ : �"+%.i!-.. ?"�. '�.%� �'.�r.. %tic_'-.��.•-_. -�-'.tea... - .. ... - .-r- _ .S». - - _ _'. - - , � r -t• Wil � .�' - ~; _ ., •• i ate" r, "•T �+i _ ?=r �y� f y�f .Pi' _ � ►r. ' -A� �r4 �' � 1 .y[ � cif"'" .r �'�-+ i l•r fix '�.' � � i - R !NOW -ram 10 Lo _ r %, NO i.�4t, pf r[ F��Li Y i 40 ff .J •�f r ,f � 'r 7 G ' ' � •'� � w . �� ` � . ter/ il+ r r is16o000 '_ Y GENERAL NOTES: = PREP AND PAINT z —CLEAN TO SPEC SSPC—SP1 — —PRIME w/TWO COATS OF EPDXY PRIMER z Lo —TOP COAT w/TWO COATS OF SEMI —GLOSS o N POLYSILOXANE PAINT. — —COLOR IS TBD EX RIOR A LS & ROOF —WALLS: 5" DEEP 12 GAUGE GALVANIZED STEEL FORMED PANELS APPROXIMATELY EVERY 16" —ROOF:5" DEEP 12 GUAGE GALVANIZED STEEL WITH CROSS MEMBERS APPROX. EVERY 24" ROOF HAS A 1" PEAK TO MINIMIZE PONDING. —ROOF IS SEAM WELDED CONSTRUCTION. _ ATTENUATION —65dBA@23' IN A FREE FIELD CONDITION ELECTRICAL w —ALL WIRING IS SURFACE MOUNT IN EMT a CONDUIT. U In PLAN VIEW 1B' 72' 16' 010' SPECIAL OPENING INTAKE HOD o 20' SQUARE EXHAUST OPNG. APPLJCAl10N EXHAUST SILENCER I I o a Lo �p w/RAINSHIEI D i I CD Z i I v w �E F o W 3 2 , La fy- cn II I J U - it I i T, W jl I IApt 0 I I I LIFTING LUG 6D0 US GALLON 4 PLACES SUBBASE TANK SECTION B—B aa' 216' MAIN BODY LENGTH EQUIPMENT INSTALL —ALUM—TEK TO INSTALL CLIENT SUPPLIED GENSET, ISOLATORS & BATTERY CHARGER. WEIGHT Li --APPROXIMATE WEIGHT: 32,000 lbs. 0- (ENCLOSURE, GENSET & DRY FUEL TANK) 312' DAL SECTION A —A SHIP LOOSE E S —MUFFLER ELBOW w/RAIN SHIELD PRE —FITTED AND TO BE REINSTALLED BY OTHERS. BASE _600 US GALLON 12" DEEP ULC S601 FUEL TANK WITH LIFT LUGS, ELECTRICAL STUB —UP AREA,6" GENERATOR SUPPORT I --BEAMS. 52' NORMAL VENT C DISCHARGEE HD TURNING VANE 7 4W NOTE: ENCLOSURE IS REMOVABLE FROM FUEL TANK USE LIFT LUGS ON ROOF *USE LIFT LUGS ON TANK TO MOVE ENTIRE UNIT z z ° CONCEPTUAL ONLY NOT FOR APPROVAL 0 , rm" new UVENINU SECTION C—C 0 Z Z W D_ O v etan Dinoy A INDUSTRIES LTD., ALDERGROVE, S.1712011 e BRRISH COLUMBIA, V4W 2Z6 TN =He er Pero MACHINERY CABINET FOR A 500kW DFEK we ONAN GENSEr,600 US GALLON SUBBASE TAN wv. ar GENERAL ARRANGEMENT AND NOTES DATE CLIENT: CUMMINS NORTHWEST PROJECT. NO. PROJECT:LAKEHAVEN PS 33B SCALE 1 D=MK im. 1 5w.. rriv 1 1-908-1 F/l RECEIVED AUG 12 2015 CITY OF FEDERAL WAY CDS is *W AW-1 L *W AW-1 L Lu L n L c _Q old ib� 01. — -a�gw,, 9Nn 3Af17LM— Zt. 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