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Home My WebLink AboutWWP273685 (4)Washington Department of FISH and WILDLIFE HYDRAULIC PROJECT APPROVAL RCW 77.55.021 - See appeal process at end of HPA Issue Date: May 27, 2014 Project Expiration Date: May 26, 2019 PERMITTEE City of Renton ATTENTION: John Hobson 1055 S Grady Way 5th Fir Renton, WA 98057 425-430-7279 Control Number: FPA/Public Notice #: North Puget Sound 16018 Mill Creek Boulevard Mill Creek, WA 98012-1296 (425) 775-1311 133682-1 N/A AUTHORIZED AGENT OR CONTRACTOR Project Name: Trenchless Conduit Crossing Project Description: Sewer main permanently contained within a steel casing over existing an unnamed tributary to Lake Washington. PROVISIONS 1. TIMING LIMITATIONS: The project may begin immediately and shall be completed by May 26, 2019. 2. Work shall be accomplished per plans and specifications approved by the Washington Department of Fish and Wildlife entitled, "SOUTH 132ND STREET SEWER EXTENSION PROJECT', except as modified by this Hydraulic Project Approval. A copy of these plans shall be available on site during construction. 3. Support structures for the aerial conduit crossing shall be located and armored to prevent scour or undermining. 4. Conduit alignment shall be as nearly perpendicular to the stream as possible. 5. Excess spoils shall be disposed of so they will not enter the stream. 6. Disturbance of the streambanks and their associated vegetation shall be limited to that necessary to perform the project. Prior to December 31 of the year of conduit installation, the disturbed areas of woody vegetation shall be revegetated with native or other woody species. Plantings shall be maintained as necessary for three or more years to ensure 80 percent or greater survival of each species or a contingency species approved by the Area Habitat Biologist (AHB) listed below. 7. If at any time, as a result of project activities, fish are observed in distress, a fish kill occurs, or water quality problems develop (including equipment leaks or spills), immediate notification shall be made to the Washington Emergency Management Division at 1-800-258-5990, and to the AHB. 8. Erosion control methods shall be used to prevent silt -laden water from entering the stream. These may include, but are not limited to, straw bales, filter fabric, temporary sediment ponds, check dams of pea gravel -filled burlap bags or other material, and/or immediate mulching of Page 1 of 4 Washington Department of FISH and WILDLIFE HYDRAULIC PROJECT APPROVAL RCW 77.55.021 - See appeal process at end of HPA Issue Date: May 27, 2014 Project Expiration Date: May 26, 2019 exposed areas. Control Number: FPA/Public Notice # North Puget Sound 16018 Mill Creek Boulevard Mill Creek, WA 98012-1296 (425) 775-1311 133682-1 N/A 9. Prior to starting work, the selected erosion control methods (Provision 8) shall be installed. Accumulated sediments shall be removed during the project and prior to removing the erosion control methods after completion of work. 10. Wastewater from project activities and water removed from within the work area shall be routed to an area landward of the ordinary high water line to allow removal of fine sediment and other contaminants prior to being discharged to the stream or wetlands associated with the stream. 11. All waste material such as construction debris, silt, excess dirt or overburden resulting from this project shall be deposited above the limits of floodwater in an approved upland disposal site. 12. Extreme care shall be taken to ensure that no petroleum products, hydraulic fluid, fresh cement, sediments, sediment -laden water, chemicals, or any other toxic or deleterious materials are allowed to enter or leach into the stream or wetlands associated with the stream. PROJECT LOCATIONS Location #1 Approx. 8223 S 132nd St WORK START: May 27, 2014 IWORK END: May 26, 2019 WRIA: Waterbody: Tributary to: 08.6007 Lake Washington Ship Canal 1/4 SEC: Section: Township: Range: Latitude: Longitude: County: NE 1/4 13 23 N �04 E N 47.484094 W 122.228566 King Location #1 Driving Directions from 1-405 take exit 5, merge onto NE Park Dr, continue onto Logan Ave N, take slight right onto Airport Way, continue onto Renton Ave Extension, continue onto Renton Ave S, turn left onto 132nd St. Third parcel on left. The stream is an unnamed tributary. APPLY TO ALL HYDRAULIC PROJECT APPROVALS This Hydraulic Project Approval pertains only to those requirements of the Washington State Hydraulic Code, specifically Chapter 77.55 RCW (formerly RCW 77.20). Additional authorization from other public agencies may be necessary for this project. The person(s) to whom this Hydraulic Project Approval is issued is responsible for applying for and obtaining any additional authorization from other public agencies (local, state and/or federal) that may be necessary for this project. This Hydraulic Project Approval shall be available on the job site at all times and all its provisions followed by the person(s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work. Page 2 of 4 Washington Department of FISH and WILDLIFE HYDRAULIC PROJECT APPROVAL RCW 77.55.021 - See appeal process at end of HPA Issue Date: May 27, 2014 Project Expiration Date: May 26, 2019 This Hydraulic Project Approval does not authorize trespass. Control Number: FPA/Public Notice #: North Puget Sound 16018 Mill Creek Boulevard Mill Creek, WA 98012-1296 (425) 775-1311 133682-1 N/A The person(s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work may be held liable for any loss or damage to fish life or fish habitat that results from failure to comply with the provisions of this Hydraulic Project Approval. Failure to comply with the provisions of this Hydraulic Project Approval could result in a civil penalty of up to one hundred dollars per day and/or a gross misdemeanor charge, possibly punishable by fine and/or imprisonment. All Hydraulic Project Approvals issued under RCW 77.55.021 are subject to additional restrictions, conditions, or revocation if the Department of Fish and Wildlife determines that changed conditions require such action. The person(s) to whom this Hydraulic Project Approval is issued has the right to appeal those decisions. Procedures for filing appeals are listed below. MINOR MODIFICATIONS TO THIS HPA: You may request approval of minor modifications to the required work timing or to the plans and specifications approved in this HPA. A minor modification to the required work timing means up to a one -week deviation from the timing window in the HPA when there are no spawning or incubating fish present within the vicinity of the project. You may request subsequent minor modifications to the required work timing. A minor modification of the plans and specifications means any changes in the materials, characteristics or construction of your project that does not alter the project's impact to fish life or habitat and does not require a change in the provisions of the HPA to mitigate the impacts of the modification. Minor modifications do not require you to pay additional application fees or be issued a new HPA. To request a minor modification to your HPA, submit a written request that clearly indicates you are requesting a minor modification to an existing HPA. Include the HPA number and a description of the requested change and send by mail to: Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234, or by email to HPAapplications@dfw.wa.gov. Do not include payment with your request. YOL should allow up to 45 days for the department to process your request. MAJOR MODIFICATIONS TO THIS HPA: You may request approval of major modifications to any aspect of your HPA. Any approved change other than a minor modification to your HPA will require issuance of a new HPA. If you paid an application fee for your original HPA you must include payment of $150 with your written request or request billing to an account previously established with the department. If you did not pay an application fee for the original HPA, no fee is required for a change to it. To request a major modification to your HPA, submit a written request that clearly indicates you are requesting a major modification to an existing HPA. Include the HPA number, check number or billing account number, and a description of the requested change. Send your written request and payment, if applicable, by mail to: Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234. If you are charging the fee to a billing account number or you are not subject to the fee, you may email your request to HPAapplications@dfw.wa.gov. You should allow up to 45 days for the department to process your request. APPEALS INFORMATION If you wish to appeal the issuance, denial, conditioning, or modification of a Hydraulic Project Approval (HPA), Washington Department of Fish and Wildlife (WDFW) recommends that you first contact the department employee who issued or denied the HPA to discuss your concerns. Such a discussion may resolve your concerns without the need for further appeal action. If you proceed with an appeal, you may request an informal or formal appeal. WDFW encourages you to take advantage of the informal appeal process before initiating a formal appeal. The informal appeal process includes a review by department management of the HPA or denial and often resolves issues faster and with less legal complexity than the formal appeal process. If the informal appeal process does not resolve your concerns, you may advance your appeal to the formal process. You may contact the HPA Appeals Coordinator at (360) 902-2534 for more information. A. INFORMAL APPEALS: WAC 220-110-340 is the rule describing how to request an informal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete informal appeal procedures. The following information summarizes that rule. Page 3 of 4 Washington Department of FISH and WILDLIFE HYDRAULIC PROJECT APPROVAL RCW 77.55.021 - See appeal process at end of HPA Issue Date: May 27, 2014 Project Expiration Date: May 26, 2019 Control Number: 1110_1/1II171r.LGi=2 J North Puget Sound 16018 Mill Creek Boulevard Mill Creek, WA 98012-1296 (425) 775-1311 133682-1 N/A A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request an informal appeal of that action. You must send your request to WDFW by mail to the Washington Department of Fish and Wildlife HPA Appeals Coordinator, 600 Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov; fax to (360) 902-2946; or hand -delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor. WDFW must receive your request within 30 days from the date you receive notice of the decision. If you agree, and you applied for the HPA, resolution of the appeal may be facilitated through an informal conference with the WDFW employee responsible for the decision and a supervisor. If a resolution is not reached through the informal conference, or you are not the person who applied for the HPA, the HPA Appeals Coordinator or designee will conduct an informal hearing and recommend a decision to the Director or designee. If you are not satisfied with the results of the informal appeal, you may file a request for a formal appeal. B. FORMAL APPEALS: WAC 220-110-350 is the rule describing how to request a formal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete formal appeal procedures. The following information summarizes that rule. A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request a formal appeal of that action. You must send your request for a formal appeal to the clerk of the Pollution Control Hearings Boards and serve a copy on WDFW within 30 days from the date you receive notice of the decision. You may serve WDFW by mail to the Washington Department of Fish and Wildlife HPA Appeals Coordinator, 600 Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov; fax to (360) 902-2946; or hand -delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor. The time period for requesting a formal appeal is suspended during consideration of a timely informal appeal. If there has been an informal appeal, you may request a formal appeal within 30 days from the date you receive the Director's or designee's written decision in response to the informal appeal. C. FAILURE TO APPEAL WITHIN THE REQUIRED TIME PERIODS: If there is no timely request for an appeal, the WDFW action shall be final and unappealable. ENFORCEMENT: Sergeant Chandler (34) P3 Habitat Biologist p✓ for Director Larry Fisher 425-313-5683WDFW CC: Page 4 of 4 FINANCE AND INFORMATION SERVICES DEPARTMENT M E M O R A N D U M DATE: May 28, 2014 TO: Casaundra Commodore, Finance & Information Services Department FROM: Kris Sorensen SUBJECT: Re: INTERFUND TRANSFER REQUEST Instructions: Please note that failure to provide all digits will result in processing delays. All Signatures and correct documentation must be included. Please prepare the followine inter -fund transfer: Deoartment CharLyed: Account Number Project, function, task, sub -task Description Amount 426.465500.018.594.35.63.000/U45500 South 132 nd St Sewer Extension Environmental fee $1,000.00 426.465500.018.594.35.63.000/U45500 South 132nd St Sewer Extension Variance fee $1,200.00 426.465500.018.594.35.63.000/U45500 Technology fee $66.00 Total $2,266.00 1 APPROVAL SIGNATURE: Printed Name David Christensen CREDIT: Date May 28, 2014 Account Number Project, function, task, sub -task Description Amount 000.000000.007.345.81.04.000 South 132nd St Sewer Extension Environmental fee $1,000.00 000.000000.007.345.81.16.000 South 132nd St Sewer Extension Variance fee $1,200.00 503.000000.004.322.10.00.000 Technology fee $66.00 Total $2.266.00 Reason: Note: Documentation to support this transfer request must be attached and all signatures are required. Cash Transfer Form/Finance/bh Revised 01/09 Washington Department of FISH and WILDLIFE HYDRAULIC PROJECT APPROVAL SIMPLIFIED APPLICATION WASHINGTON DEPARTMENT OF FISH AND WILDLIFE Date Received: HPA#: ONLY NOTE: If you need to fill out a Joint Aquatic Resources Permit Application (JARPA) because your project requires a federal permit, please discontinue using this form and submit the completed JARPA instead. The JARPA form is available at www.epermitting.org. You can find more information about federal permits at http://apps.ecy.wa.gov/opas/index.asp. Project Type Please indicate what type of project you are requesting review of (check all that apply): ❑ Road maintenance work (Plans required) ❑ Dock maintenance/repair (Plans required) ❑ Mineral prospecting (Plans required) ❑ Scientific instrument installation ❑ Beaver dam modification (Plans required) ® Trenchless conduit (utility) crossing (Plans required) ❑ Repositioning or removal of large wood ❑ Fish screen maintenance or replacement (Plans required) Project Plans Please attach project plans if the box checked above indicates such. You can find more detail on project plans requirements at http://wdfw.wa.gov/licensing/hpa/hpa_criteria.htmi. Applicant Last Name Applicant First Name Middle Initial Hobson John Organization Name City of Renton Applicant Mailing Address (Street or PO Box) 1055 S. Grady Way, 51h Floor City State Zip Renton WA 98057 Phone (Home) Phone (Cell) Phone (Work) E-mail 425.430.7279 jhobson@rentonwa.gov Project Description . Summary of project: See attached project narrative. Will you be operating equipment in water? If yes, what type of equipment? No. When do you plan to do the work? Summer 2014 HPA SIMPLIFIED APPLICATION Version 1.0 Page 1 of 3 How will you accomplish the work and minimize impacts to fish life and fish habitat? Several options to the current design were investigated for feasibility and environmental impacts. The proposed alignment location was chosen as it has the least impact to the stream as well as its surrounding buffers. The proposed sewer main cannot be buried under the stream due to the depth of the existing sewer main that it will be connecting to. The proposed sewer main will be permanently contained within a steel casing over the existing stream. In designing the final alignment, the pipe supports were placed as close to the outer buffer limits as possible on the west side of the stream. The support is outside of the buffer on the east side of the stream. The footprint of each support was also held to minimum size needed to support the pipe and casing on each side of the stream. No impacts to the stream are anticipated. Project Site Location (If multiple project sites, attach additional site location information separately) County and Waterbody Name King/Unnamed Driving Directions from 1-405, take exit 5; merge onto NE Park Dr, continue onto Logan Ave N, take slight Site Address Apx. 8223 S. 132�d Street Renton, WA right onto Airport Way, continue onto Renton Ave Extension, continue onto Renton Ave S., turn left onto 132nd Street. Third parcel on the left. Township Range Section Quarter Section 23 04 13 NE State Environmental Policy Act (SEPA) Please attach your State Environmental Policy Act (SEPA) determination for the project. If your project does not require SEPA review, please attach written documentation from your lead agency (usually city or county) stating the SEPA exemption. For more information on SEPA go to: www.ecy.wa.gov/programs/sea/sepa/e-review.html Signature and $150 Payment (See Fee Exemptions below) ® $150 check payable to Washington Dept. of Fish & Wildlife attached. (Check # 3Z ?ZSJ ) ❑ Charge to billing account under agreement with WDFW. (Agreement # ) ❑ My project is exempt from the application fee. (Check appropriate exemption) ❑ HPA processing is conducted by applicant -funded WDFW staff. (Agreement # ) ❑ Mineral prospecting and mining. ❑ Project occurs on farm and agricultural land. (Attach a copy of current land use classification recorded with the county auditor, or other proof of current land use.) ❑ Project is a modification of an existing HPA originally applied for prior to July 10, 2012. (HPA # ) I hereby certify that this application is made with the consent of the lawful property owner(s) and that all information submitted with this application is complete and correct. False statements, errors, and/or omissions may be sufficient cause for denial of the request. I consent to representatives of the Washington Department of Fish and Wildlife entering and inspecting the project area(s) listed above and any work or equipment related to the project. Such inspections shall occur at reasonable times, and if practical, with prior notice. John Hobson 4/21/2014 Applicant Printed Name %Applicant Signature Date Submitting Application Mail, hand deliver, FAX, or email the completed application, attachments, and if required your $150 payment to: HPA SIMPLIFIED APPLICATION Version 1.0 Page 2 of 3 PLEASE DETACH BEFORE DEPOSITING CITY OF RENTON, WA 98055 :,:U.S.-BANK'OF WASHINGTON 19-10 �RENTON BRANCH, -1250 WENDOR4.�.' a CVIECK,A MOWNT . 088104 L.04/310/2014 .329251 150.00. ACCOUNTS PAYABLE CHECK NO.329251 Mki PT ib kftj,�4� N DIsc6CJ TIRETAINV Permit Fee 04/21/2014 S. 132nd Street Hydraulic Approval 0.00 150.00 150.00 Check Request for Non Vendor Refund or Reimbursement This form is to be used only for one time vendors. Please contact -Accounts Payable if you have any questions regarding one time vendors. Check will be included in the nest scheduled A/P check run and mailed after Council approval. Check Request Info: Date of request: 4/22/2014 Requestor's name: Requestor's departtnent/division: Requestor's ext. #: John Hobson Public Works / Utility Systems 7279 Payable to: Washington Department of Fish and Wildlife Mail address for check: Check amount: Account number(s) to charge: Amount per account #: $150.00 426.465500.018.594.35.63.000/u45500 Reason for refund or reimbursement: Hydraulic Project Approval Permit Fee Check handling request: Send check to John Hobson for inclusion with permit application *Approval Signature: eq'iuestor's qViartmeryAlministrator, ivisi n hector ignee: Signature: type nampof signer on above line Date: The person approving this check request must be an authorized signer. \\renton\data\Piaz7a\DATA_Center\Forms\Finance\2007_Check Request for Non Vendor Refund or Reimbursement (online typeable).doc Online Ttpeable Form, Jul}• 2007 Denis Law Mayor City of ti Y O� Department of Community and Economic Development April 9, 2014 C.E."Chip"Vincent, Administrator Johh Hobson City of Renton Wastewater Utility 1055 S. Grady Way Renton, WA 98055 RECEIVED Rebecca Saur APR 10 2014 Stantec 11130 NE 33rd PI. CITY OF RENTON Bellevue, WA 98004 UTILITY SYSTEMS Subject: Notice of Complete Application John Stewart Side Sewer Extension, LUA14-000453 Dear Mr. Hobson and Ms. Saur: The Planning Division of the City of Renton has determined that the subject application is complete according to submittal requirements and, therefore, is accepted for review. It is tentatively scheduled for consideration by the Environmental Review Committee on April 28, 2014. Prior to that review, you will be notified if any additional information is required to continue processing your application. Please contact me at (425) 430-6593 if you have any questions. Sincerely, je�-4-0'r S-00�� Kris Sorensen Associate Planner cc: John Stewart / Owner(s) Renton City Hall . 1055 South Grady Way • Renton, Washington 98057 • rentonwa.gov DEPARTMENT OF COMMUNITY "C�tyof, AND ECONOMIC DEVELOPMENT., 7- ot SUBMITTAL REQUIREMENTS ENVIRONMENTAL REVIEW Planning Division 1055 South Grady Way -Renton, WA 98057 Phone: 425-430-7200 Fax: 425-430-7231 www.rentonwa.gov PURPOSE: To evaluate the environmental impacts of a proposal and to identify methods to reduce those impacts. During this review process environmental values are considered as well as technical and economic considerations. FREE CONSULTATION MEETING: Prior to submitting an application, the applicant should informally discuss the proposed development with the Planning Division. The Planning Division will provide assistance and detailed information on the City's requirements and standards. Applicants may also take this opportunity to request the waiver of the City's typical application submittal requirements, which may not be applicable to the specific proposal. For further information on this meeting, see the instruction sheet entitled "Submittal Requirements: Pre -Application." APPLICATION SCREENING: Applicants are encouraged to bring in one copy of the application package for informal review by staff, prior to making the requested number of copies, colored drawings, or photo reductions. Please allow approximately 45 minutes for application screening. COMPLETE APPLICATION REQUIRED: In order to accept your application, each of the numbered items must be submitted at the same time. If you have received a prior written waiver of a submittal item(s) during a pre -application meeting, please provide the waiver form in lieu of any submittal item not provided. All plans and attachments must be folded to a size not exceeding 8% by 11 inches. APPLICATION SUBMITTAL HOURS: Applications should be submitted to Development Services staff at the 6th floor counter of Renton City Hall, 1055 South Grady Way, between 8:00 A.M. and 4:00 P.M. Monday through Friday. Please call your assigned project manager to schedule an appointment or call (425) 430-7200 extension 4 to reach the Planning Division. Due to the screening time required, applications delivered by messenger cannot be accepted. ADDITIONAL PERMITS: Additional permits from other agencies may be required. It is the applicant's responsibility to obtain these other approvals. Information regarding these other requirements may be found at http://apps.ecy.wa.gov/opas/ All Plans and Attachments must be folded 8 %"by 11" s. r_11JKA-11drQakyjr_1%94:1r_1I" 1. ❑ Pre -Application Meeting Summary: If the application was reviewed at a "pre - application meeting", please provide 5 copies of the written summary provided to you. 2. ❑ Waiver Form: If you received a waiver form during or after a "pre -application meeting", please provide 5 copies of this form. 3. ❑ Land Use Permit Master Application Form: Please provide the original plus 11 copies of the COMPLETED City of Renton Planning Division's Master Application form. Application must have notarized signatures of ALL current property owners listed on the Title Report. If the property owner is a corporation, the authorized representative must attach proof of signing authority on behalf of the corporation. The legal description of the property must be attached to the application form. 4. ❑ Environmental Checklist: Please provide 12 copies of the Environmental Checklist. Please ensure you have signed the checklist and that all questions on the checklist have been filled in before making copies. If a particular question on the checklist does not apply, fill in the space with "Not Applicable". 5. ❑ Project Narrative: Please provide 12 copies of a clear and concise description of the proposed project, including the following: • Project name, size and location of site • Land use permits required for proposed project • Zoning designation of the site and adjacent properties • Current use of the site and any existing improvements • Special site features (i.e. wetlands, water bodies, steep slopes) • Statement addressing soil type and drainage conditions • Proposed use of the property and scope of the proposed development • For plats indicate the proposed number, net density and range of sizes (net lot area) of the new lots • Access • Proposed off -site improvements (i.e. installation of sidewalks, fire hydrants, sewer main, etc.) • Total estimated construction cost and estimated fair market value of the proposal • Estimated quantities and type of materials involved if any fill or excavation is proposed • Number, type and size of any trees to be removed • Explanation of any land to be dedicated to the City • Any proposed job shacks, sales trailers, and/or model homes • Any proposed modifications being requested (include written justification) For projects located within 100 feet of a stream or wetland, please include: • Distance in feet from the wetland or stream to the nearest area of work For projects located within 200-feet of Black River, Cedar River, Springbrook Creek, May Creek and Lake Washington please include the following additional information: http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc - 2 - 03/12 • Distance from closest area of work to the ordinary high water mark. • Description of the nature of the existing shoreline • The approximate location of and number of residential units, existing and potential, that will have an obstructed view in the event the proposed project exceeds a height of 35-feet above the average grade level 6. ❑ Rezone, Variance, Modification, or Conditional Use Justification: Please contact the Planning Division to determine whether your project proposal triggers any additional land use permits. If so, additional information may be required. 7. ❑ Construction Mitigation Description: Please provide 5 copies of a written narrative addressing each of the following: • Proposed construction dates (begin and end dates) • Hours and days of operation • Proposed hauling/transportation routes • Measures to be implemented to minimize dust, traffic and transportation impacts, erosion, mud, noise, and other noxious characteristics • Any special hours proposed for construction or hauling (i.e. weekends, late nights) • Preliminary traffic control plan If your project requires the use of cranes, please contact the City's Airport Manager at (425) 430-7471 to determine whether Federal Aviation Administration notification will ti be required. 8. ❑ Fees: The application must be accompanied by the required application fee (see Fee Schedule). Please call (425) 430-7200 to verify the exact amount required. Checks should be made out to the City of Renton and cannot be accepted for over the total fee amount. 9. ❑ Density Worksheet: Please submit 12 copies of a completed density worksheet for all residential projects. 10. ❑ Neighborhood Detail Map: Please provide 12 copies of a map drawn at a scale of 1" _ 100' or 1" = 200' (or other scale approved by the Planning Division) to be used to identify the site location on public notices and to review compatibility with surrounding land uses. The map shall identify the subject site with a much darker perimeter line than surrounding properties and include at least two cross streets in all directions showing the location of the subject site relative to property boundaries of surrounding parcels. The map shall also show: the property's lot lines, lot lines of surrounding properties, boundaries of the City of Renton (if applicable), north arrow (oriented to the top of the plan sheet), graphic scale used for the map, and City of Renton (not King County) street names for all streets shown. Please ensure all information fits on a single map sheet. Kroll Map Company (206-448-6277) produces maps that may serve this purpose or you may use the King County Assessor's maps as a base for the Neighborhood Detail Map. http://rentonwa.gov/uploaded Files/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc - 3 - 03/12 Additional information (i.e. current city street names) will need to be added by the applicant. 11. ❑ Site Plan: Please provide 12 copies of a fully -dimensioned plan sheet drawn at a scale of 1"=20' (or other scale approved by the Planning Division). We prefer the site plan be drawn on one sheet of paper unless the size of the site requires several plan sheets be used. If you are using more than a single plan sheet, please indicate connecting points on each sheet. The Site Plan should show the following: • Name of proposed project • Date, scale, and north arrow (oriented to the top of the paper/plan sheet) • Drawing of the subject property with all property lines dimensioned and names of adjacent streets • Widths of all adjacent streets and alleys • Location of all existing public improvements including, but not limited to, curbs, gutters, sidewalks, median islands, street trees, fire hydrants, utility poles, etc., along the full property frontage • Location and dimensions of existing and proposed: 1. structures 2. parking, off-street loading space, curb cuts and aisle ways 3. fencing and retaining walls 4. free-standing signs and lighting fixtures 5. refuse and recycling areas 6. utility junction boxes and public utility transformers 7. storage areas and job shacks/sales trailers/model homes • Location and dimensions of all easements referenced in the title report with the recording number and type of easement (e.g. access, sewer, etc.) indicated • Location and dimensions of natural features such as streams, lakes, required buffer areas, open spaces, and wetlands • Ordinary high water mark and distance to closest area of work for any project located within 200-feet from a lake or stream 12. ❑ Landscape Plan, Conceptual: Please provide 5 copies of a fully -dimensioned plan drawn at the same scale as the project site plan (or other scale approved by the Planning Division), clearly indicating the following: • Date, graphic scale, and north arrow • Location of proposed buildings, parking areas and access, and existing buildings to remain • Names and locations of abutting streets and public improvements, including easements • Existing and proposed contours at two -foot intervals or less • Location and size of planting areas • Location and height of proposed building • Location and elevations for any proposed landscape -related structures such http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc - 4 - 03/12 as arbors, gazebos, fencing, etc. • Location, size, spacing and names of existing (to remain) and proposed shrubs, trees, and ground covers. locations of decorative rocks or landscape improvements in relationship to proposed and existing utilities and structures • For wireless communication facilities, indicate type and locations of existing and new plant materials used to screen facility components and the proposed color(s) for the facility 13. ❑ Topography Map: Please provide 5 copies of a plan showing the site's existing contour lines at five-foot vertical intervals. 14. ❑ Tree Cutting/Land Clearing (Tree Inventory) Plan: Please provide 4 copies of a plan, based on finished grade, drawn to scale with the northern property line at the top of the paper if ANY trees or vegetation are to be removed or altered (if no trees or vegetation will be altered, please state so in your project narrative). The plan shall clearly show the following: • All property boundaries and adjacent streets • Location of all areas proposed to be cleared • Types and sizes of vegetation to be removed, altered or retained. This requirement applies only to trees 6" caliper "at chest level" and larger • Future building sites and drip lines of any trees which will overhang/overlap a construction line • Location and dimensions of rights -of -way, utility lines, and easements • Any trees on neighboring properties which are within 25-feet of the subject property and which may be impacted by excavation, grading or other improvements 15. ❑ Tree Retention Worksheet: Please provide 2 copies of a completed City of Renton tree retention worksheet. 16. ❑ Wetland Assessment: Please provide 12 copies of the map and 5 copies of the report if ANY wetlands are located on the subject property or within 100 feet of the subject property. The wetland report/delineation must include the information specified in RMC 4-8-120D. In addition, if any alteration to the wetland or buffer is proposed, 5 copies of a wetland mitigation plan is also required. See RMC 4-8-120D for plan content requirements. 17. ❑ Standard Stream or Lake Study: Please provide 12 copies of a report containing the information specified in RMC Section 4-8-120D. In addition, if the project involves an unclassified stream, a supplemental stream or lake study is also required (12 copies). If any alteration to a water -body or buffer is proposed a supplemental stream or lake study (12 copies) and a mitigation plan (12 copies) are also required. See RMC 4-8- 120D for plan content requirements. 18. ❑ Habitat Data Report: If the project site contains or abuts a critical habitat per RMC 4-3- 05065b, please provide 12 copies of a report containing the information specified in http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANN ING/envrev.doc -5- 03/12 Section 4-8-120D of the Renton Municipal Code. 19. ❑ Utilities Plan, Generalized (sewer, water, stormwater, transportation improvements): Please provide 5 copies of a plan drawn on 22" x 34" plan sheets using a graphic scale of 1" = 40' (or other size or scale approved by the Planning Division) clearly showing all existing (to remain) and proposed public or private improvements to be dedicated or sold to the public including, but not limited to, curbs, gutters, sidewalks, median islands, street trees, fire hydrants, utility poles, free-standing lighting fixtures, utility junction boxes, public utility transformers, etc., along the full property frontage. The finished J floor elevations for each floor of proposed and existing (to remain) structures shall also ��►� be shown. a Py i, 20. ❑ Geotechnical Report: Please provide 5 copies of a study prepared and stamped by a State of Washington licensed professional engineer including soils and slope stability analysis, boring and test pit logs, and recommendations on slope setbacks, foundation design, retaining wall design, material selection, and all other pertinent elements. ti 21. ❑ Grading Plan, Conceptual: This is required if the proposed grade differential on -site will exceed 24" from the top of the curb or if the amount of earth to be disturbed exceeds 500 cubic yards. Please provide 12 copies of a 22" x 34" plan drawn by a State of Washington licensed civil engineer or landscape architect at a scale of 1" to 40' (horizontal feet) and 1" to 10' (vertical feet) (or other size plan sheet or scale approved by the Planning Division Plan Review Supervisor) clearly indicating the following: • Graphic scale and north arrow • Dimensions of all property lines, easements, and abutting streets • Location and dimension of all on -site structures and the location of any structures within 15-feet of the subject property or that may be affected by the proposed work • Accurate existing and proposed contour lines drawn at two -foot, or less, intervals showing existing ground and details of terrain and area drainage to include surrounding off -site contours within 100-feet of the site • Location of natural drainage systems, including perennial and intermittent streams and the presence of bordering vegetation • Setback areas and any areas not to be disturbed • Finished contours drawn at two foot intervals as a result of grading • Proposed drainage channels and related construction with associated underground storm lines sized and connections shown • Finished floor elevation(s) of all structures, existing and proposed General notes addressing the following (may be listed on cover sheet): • Area in square feet of the entire property • Area of work in square feet • Both the number of tons and cubic yards of soil to be added, removed, or relocated • Type and location of fill origin, and destination of any soil to be removed from site http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc - 6 - 03/12 22. ❑ Drainage Control Plan: Please provide 4 copies of a plan drawn to scale and stamped by a Washington State licensed professional engineer and complying with the requirements of Renton Municipal Code, Section 4-6-030 and the King County Surface Water Management Design Manual, 2009 edition, as adopted and amended by the City of Renton. 23. ❑ Drainage Report: Please provide 4 copies of a report complying with the requirements of the City of Renton Drafting Standards, Section 4-6-030 of the City of Renton Municipal Code, the King County Surface Water Design Manual (KCSWDM), 2009 edition, and the City of Renton Amendments to the KCSWDM, Chapters 1 and 2 as adopted by the City of Renton. The report (TIR) must be stamped and dated by a civil engineer and shall contain the following: • Table of Contents • Technical Information Report (TIR) Worksheet • Section 1: Project Overview • Section 2: Conditions and Requirements Summary • Section 3: Offsite Analysis • Section 4: Flow Control and Water Quality Facility Analysis and Design • Section 5: Conveyance System Analysis and Design • Section 6: Special Reports and Studies • Section 7: Other Permit • Section 8: CSWPPP Analysis and Design • Section 9: Bond Quantities, Facility Summaries, and Declaration of Covenant • Section 10: Operations and Maintenance Manual. 24. ❑ Architectural Elevations: Please provide 5 copies, for each building and each building face (N,S,E,W), of a 24" x 36" fully -dimensioned architectural elevation plan drawn at a scale of 1/4" = 1' or 1/8" = 1' (or other size or scale approved by the Planning Division). The plans must clearly indicate the information required by the "Permits" section of the currently adopted Uniform Building Code and RCW 19.27 (State Building Code Act, Statewide amendments), including, but not limited to the following: • Identify building elevations by street name (when applicable) and orientation i.e. Burnett Ave. (west) elevation • Existing and proposed ground elevations • Existing average grade level underneath proposed structure • Height of existing and proposed structures showing finished roof top elevations based upon site elevations for proposed structures and any existing/abutting structures • Building materials and colors including roof, walls, any wireless communication facilities, and enclosures 25. ❑ Floor Plans: Please provide 5 copies of a plan showing general building layout, proposed uses of space, walls, exits and proposed locations of kitchens, baths, and floor drains, with sufficient detail for City staff to determine if an oil/water separator or http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc - 7 - 03/12 grease interceptor is required and to determine the sizing of a side sewer. 26. ❑ Flood Hazard Data: Please provide 12 copies of a scaled plan showing the nature, location, dimensions, and elevations of the area in question; existing or proposed structures, fill, storage of materials, and drainage facilities. Also indicate the following: • Elevation in relation to mean sea level of the lowest floor (including basement) of all structures • Elevation in relation to mean sea level to which any structure has been floodproofed • Certification by a registered professional engineer or architect the floodproofing methods criteria in RMC 4-3-050 have been met • Description of the extent to which a watercourse will be altered or relocated as a result of proposed development 27. ❑ Traffic Study: Please provide 5 copies of a report prepared by a State of Washington licensed professional engineer containing the elements and information identified in the City of Renton "Policy Guidelines for Traffic Impact Analysis of New Development" in sufficient detail to define potential problems related to the proposed development and identify the improvements necessary to accommodate the development in a safe and efficient manner. 28. ❑ Urban Design Regulations Analysis: For projects located within an Urban Design District (see map in RMC 4-3-100B4), please provide 3 copies of a narrative outlining how the applicant's proposal addresses the City's Urban Design Regulations found in RMC 4-3- 100. Prior to submitting your application, please contact your assigned City staff planner to obtain the applicable design district checklist to assist you in addressing issues relative to your particular site and project. 29. ❑ Plan Reductions: Please provide one 8 %Z" x 11" legible reduction of each full size plan sheet (unless waived by your Project Planner). The sheets that are always needed in reduced form are: landscape plans, conceptual utility plans, site plan or plat plan, neighborhood detail map, topography map, tree cutting/land clearing plan, critical areas plans, grading plan, and building elevations. These reductions are used to prepare public notice posters and to provide the public with information about the project. The quality of these reductions must be good enough so that a photocopy of the reduced plan sheet is also legible. The reduced plans are typically sent in PDF format to the print shop and then are printed on opaque white mylar-type paper (aka rhino cover) to ensure legibility. If your reduced plans are not legible once photocopied, you will need to increase the font size or try a different paper type. Illegible reductions cannot be accepted. Please also be sure the reduced Neighborhood Detail Map is legible and will display enough cross streets to easily identify the project location when cropped to fit in a 4" by 6" public notice space. Once the reductions have been made, please also make one 8 %" x 11" regular photocopy of each photographic reduction sheet. Some of the local Renton print shops that should be able to provide you with reductions of your plans are Alliance Printing (425) 793-5474, Apperson Print Resources (425) 251-1850, and PIP Printing (425) 226-9656. Nearby print shops are Digital Reprographics (425) 882-2600 in Bellevue, Litho Design (206) 574-3000 and Reprographics NW/Ford http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc -8- 03/12 Graphics (206) 624-2040. 30. ❑ Colored Maps for Display (DO NOT MOUNT ON FOAM -CORE OR OTHER BACKING): Please color 1 copy of each of the following full size plan sheets (24" x 36") or other size approved by the Planning Division) with a 1/4" or larger felt tip marker for use in presenting the project to the Environmental Review Committee and at any required public hearing: • Neighborhood Detail Map • Site Plan • Landscaping Plan • Elevations The following colors are required: Red -North Arrow, outer property boundary. Proposed new lot lines (dashed). Do not color existing lot lines which are to be eliminated or relocated. Blue -Street names identified with lettering of at least 1" in height. Street names must be legible at a distance of 15-ft. Brown -Existing buildings (Please do not color buildings which will be demolished or removed) Yellow -Proposed buildings Light Green -Landscaped areas Dark Green -Areas of undisturbed vegetation All Plans and Attachments must be folded to 8%" by 11" REVIEW PROCESS: Once a complete land use application package has been accepted for initial review, the Planning Division will post three notices of the pending application at or near the subject site and mail notices to property owners within 300 feet of the project site. The proposal will be routed to other City departments and other jurisdictions or agencies who may have an interest in the application. The reviewers have two weeks to return their comments to the Planning Division. Within approximately two weeks, the Planning Division will prepare a report regarding the proposal's compliance with applicable codes and the City's review criteria. The application will then be presented to the City's Environmental Review Committee. The Environmental Review Committee is comprised of the Administrator of Public Works, the Administrator of Community and Economic Development, the Administrator of Community Services, and the Fire Chief. The Committee is responsible for determining whether the proposal will result in significant adverse environmental impacts. To do this, the committee will consider such issues as environmental http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc - 9 - 03/12 health hazards, wetlands, groundwater, energy and natural resources and will then issue its decision (Environmental Threshold Determination). The Environmental Review Committee will either issue a: Determination of Non -Significance (DNS) -Make a determination the proposal will have no significant negative environmental impacts or; Mitigated Determination of Non -Significance (DNS-M)-Make a determination the proposal, if modified, would have no significant negative environmental impacts or; Determination of Significance (DS)-Make a determination the proposal will have significant adverse environmental impacts and require the applicant to submit an Environmental Impact Statement (EIS) prepared by a qualified consultant Once the Environmental Review Committee has issued its Environmental Threshold Determination (provided an EIS is not required), a public notice of the Determination is printed in the Renton Reporter and three notices are posted at or near the site. A 14-day appeal period commences following the publication date. At the discretion of the City, a separate and additional 15-day comment period may be added prior to the 14-day appeal period. APPEAL AND RECONSIDERATION PROCESS FOR DECISIONS: Any person, including the applicant, aggrieved by the threshold determination, may make a written application for reconsideration to the Environmental Review Committee within 14 calendar days of the date of the decision. After review of the request, the Environmental Review Committee may take whatever action is deemed proper. The Environmental Review Committee decision on the reconsideration request will be mailed to all parties of record within 10 days from the date the request was filed. If any party is still not satisfied after a reconsideration decision has been issued, an appeal may be submitted within 14 days to the Hearing Examiner. An appeal may be filed without requesting reconsideration by the Reviewing Official first, however; it must be filed within 14 days of the date when the original decision was issued. See Renton Municipal Code, Section 4-8-110 for further information on the appeal process and time frames. BUILDING AND CONSTRUCTION PERMIT ISSUANCE AND INSTALLATION OF IMPROVEMENTS: In the City of Renton, a Building Permit must be obtained to build buildings and structures. A Construction Permit must be obtained to install utility lines, transportation improvements and undertake work in City right-of-ways. Building and Construction Permits are separate permits. Applicants may apply for building and construction permits concurrently with their request for a land use application. However, the applicant should be aware any conditions of land use permit approval may create a need for revisions to other permit applications whereby additional fees may be charged. Refunds of building permit charges are not available. If no appeals or reconsideration requests are filed within 14 days of the effective date of the decision to approve the application, the applicant may obtain building and construction permits. A construction permit for the installation of on -site and off -site utilities will be issued upon the review and approval of civil engineering drawings by the Division's Public Works Section and receipt of all applicable development and permit fees. A building permit will be issued upon the Building Section's approval of building plans and receipt of all applicable fees. http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc - 10 - 03/12 DEFERRAL OF IMPROVEMENTS: If a developer wishes to defer certain on -site or off -site improvements (i.e. landscaping, curbs and sidewalks), written application with full and complete engineering drawings must be submitted to the Planning Division. The application should explain the reasons why such delay is necessary. If approval is granted, security in the form of an irrevocable letter of credit, set -aside fund, assignment of funds, certified check or other type of security acceptable to the City shall be furnished to the City in an amount equal to a minimum of 150% of the estimated cost of the required improvements. http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/envrev.doc - 11 - 03/12 City of Renton LAND USE PERMIT MASTER APPLICATION PROPERTY OWNER(S) NAME: John Stewart ADDRESS: 8223 South 132"d Street CITY: Seattle ZIP: 98178 TELEPHONE NUMBER: APPLICANT (if other than owner) NAME: John Hobson COMPANY (if applicable): City of Renton ADDRESS: 1055 South Grady Way, 51h Floor CITY: Renton ZIP: 98057 TELEPHONE NUMBER: 425-430-7279 CONTACT PERSON NAME: Rebecca Saur COMPANY (if applicable): Stantec Consulting Services, Inc ADDRESS: 11130 NE 33`d Place, Suite 200 CITY: Bellevue ZIP: 98004 TELEPHONE NUMBER AND EMAIL ADDRESS: Rebecca. saur(d-)stantec.com 425.289.7373 PROJECT INFORMATION PROJECT OR DEVELOPMENT NAME: South 132"d Street Sewer Main Extension PROJECT/ADDRESS(S)/LOCATION AND ZIP CODE: Project site is not addressed. Adjacent parcel address is 8223 S. 132" d Street KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): 214480-0535 EXISTING LAND USE(S): Vacant PROPOSED LAND USE(S): Sewer main installation EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: Urban Center North PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION (if applicable) EXISTING ZONING: R-14 PROPOSED ZONING (if applicable): SITE AREA (in square feet): Approximately 9,500 square feet (total parcel SF = 53,143) SQUARE FOOTAGE OF PUBLIC ROADWAYS TO BE DEDICATED: � J I A SQUARE FOOTAGE OF PRIVATE ACCESS EASEMENTS: ,,j14 PROPOSED RESIDENTIAL DENSi T YIN UNITS PER NET ACRE (if applicable) "JA NUMBER OF PROPOSED LOTS (if applicable) N (Q NUMBER OF NEW DWELLING UNITS (if applicable): I,J 1A V:2002\active\0015v00023.0002013 Sewer Rehab\Pennitlmasterapp.doc - I - 03 11 PROJECT INFORMATION continued NUMBER OF EXISTING DWELLING UNITS (if applicable): SQUARE FOOTAGE OF PROPOSED RESIDENTIAL BUILDINGS (if applicable): SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL BUILDINGS (if applicable): SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NET FLOOR AREA ON NON-RESIDENTIAL BUILDINGS (if applicable): NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT (if applicable): PROJECT VALUE: $280,000 IS THE SITE LOCATED IN ANY TYPE OF ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE SQUARE FOOTAGE (if applicable): ❑ AQUIFIER PROTECTION AREA ONE ❑ AQUIFIER PROTECTION AREA TWO ❑ FLOOD HAZARD AREA sq. ft. ❑ GEOLOGIC HAZARD sq. ft. ❑ HABITAT CONSERVATION sq. ft. ❑ SHORELINE STREAMS & LAKES sq. ft. ❑ WETLANDS sq. ft. LEGAL DESCRIPTION OF PROPERTY (Attach leaal description on separate sheet with the followina information included) SITUATE IN THE NE QUARTER OF SECTION 13, TOWNSHIP 23, RANGE 04, IN THE CITY OF RENTON, KING COUNTY, WASHINGTON AFFIDAVIT OF OWNERSHIP I, (Print Name/s) , declare under penalty of perjury under the laws of the State of Washington that I am (please check one) the current owner of the property involved in this application or the authorized representative to act for a corporation (please attach proof of authorization) and that the foregoing statements and answers herein contained and the information herewith are in all respects true and correct to the best of my knowledge and belief. Signature of Owner/Representative Date Signature of Owner/Representative Date STATE OF WASHINGTON ) SS COUNTY OF KING ) I certify that I know or have satisfactory evidence that signed this instrument and acknowledge it to be his/her/their free and voluntary act for the uses and purpose mentioned in the instrument. Dated Notary Public in and for the State of Washington Notary (Print): My appointment expires: VA2002\active\00 1 5\00023.000 2013 Sewer Rehab\Permit\masterapp.doc - 2 - 03/11 ., PLANNING DIVISION ENVIRONMENTAL CHECKLIST City of Renton Planning Division 1055 South Grady Way, Renton, WA 98057 Phone: 425-430-7200 Fax: 425-430-7231 PURPOSE OF CHECKLIST: The State Environmental Policy Act (SEPA), Chapter 43.21C RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An Environmental Impact Statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. INSTRUCTIONS FOR APPLICANTS: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. USE OF CHECKLIST FOR NONPROJECT PROPOSALS: Complete this checklist for nonproject proposals, even though questions may be answered "does not apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). For nonproject actions (actions involving decisions on policies, plans and programs), the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer," and "affected geographic area," respectively. VA2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA 132nd 20140319.doc - 1 - 02/08 A. BACKGROUND Name of proposed project, if applicable: SOUTH 132ND STREET SEWER EXTENSION 2. Name of applicant: CITY OF RENTON 3. Address and phone number of applicant and contact person: 1055 S GRADY WAY RENTON, WASHINGTON 98058 425-430-7200 KRIS SORENSEN, ASSOCIATE PLANNER 4. Date checklist prepared: MARCH 19, 2014 5. Agency requesting checklist: ECOLOGY, DEPT. OF KING COUNTY DEPARTMENT OF PERMITTING $ ENVIRONMENTAL REVIEW ENVIRONMENTAL REVIEW SEPA OFFICIAL STEVE BOTTHEIM PO BOX 47703 LAND USE SERVICES DIVISION OLYMPIA IA WA OLYMPIA WA 98504-7703 900 OAKESDALE AVE SW 985 -6922 RENTON, WA 98055-1219 FAx (360) 04 (26) 296-7144 SEPAUNIT(C7ECY.WA.GOV FAx(206)6)296-7051 WASHINGTON STATE DEPARTMENT OF FISH & STEVE.BOTTHEIM((7)KING000NTY.GOV WILDLIFE CITY OF RENTON PO Box 43200 MR. WATTS OLYMPIA WA 98504-3155 10555 S. GRADY WAY (360) 902-2578 RENTON FAX (360)902-2946 (425)4 0- 218 (425) 7 SEPADESK(a)DFW.WA.GOV 25) 7-4 FAx(425)277-4455 N W ATTS (Q) RENTON W A. GOV WASHINGTON STATE DEPARTMENT OF HEALTH KELLY COOPER CITY OF RENTON PO BOX 47820 MR. MARK OLYMPIA WA 98504-7820 GRADPETEY WAY 1055 S. GRADY WAY -3011 (360) 236-3011 RENTON, WA 98057 FAx (360) 50 (425) 430-7000 KELLY.000PER(5DOH.WA.GOV MPETERSON(C1iRENTON WA.GOV WASHINGTON STATE DEPARTMENT OF NATURAL KING COUNTY RESOURCES PLANNING & ASSET MANAGEMENT SEPA OFFICIAL STEVE HIRSCHEY, UTRC CHAIR 1111 WASHINGTON STREET SOUTHEAST KING STREET CENTER PO Box 47015 201 S. JACKSON ST RM 512 OLYMPIA WA 98504-7015 KSC-NR-0512 (360) 902-2117 SEATTLE, WA 98104 FAx(360)902-1789 206-205-0817 SEPACENTER(CDDNR.WA.GOV STEVE. HIRSCHEY(C17KINGCOUNTY.GOV V:\2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA 132nd 20140319.doc- 2 - RENTON SCHOOL DISTRICT MAINTENANCE AND OPERATIONS 7812 S 124T" SEATTLE, WA 98178 425-204-4400 JOE.LAMBORN(a)RENTON SCHOOLS.US KING COUNTY FACILITIES MANAGEMENT DIVISION REAL ESTATE SERVICES KATHY BROWN 500 4TH AVE. SUITE 800 SEATTLE, WA 98104 KATHY. BRO W N(C) KINGCOUNTY.GOV MUCKLESHOOT TRIBE 39015 -172ND AVE SE AUBURN, WA 98092 (253)931-8570 VIRGINIA.CROSS(U7MUCKLESHOOT.NSN.US LAURA MURPHY TRIBAL ARCHEOLOGIST MUCKLESHOOT INDIAN TRIBE PRESERVATION PROGRAM 39015172ND AVE SE AUBURN, WA 98092 253-876-3272 LAURA.MURPHY(&MUCKLESHOOT.NSN. US KAREN WALTER WATERSHEDS AND LAND USE TEAM LEADER MUCKLESHOOT INDIAN TRIBE FISHERIES DIVISION 39015172ND AVE SE AUBURN, WA 98092 253-876-3116 KAREN. WALTER(d)MUCKLESHOOT.NSN. US 6. Proposed timing or schedule (including phasing, if applicable): SPRING/SUMMER 2014 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. THE CITY OF RENTON DOES NOT HAVE ANY SPECIFIC PLANS TO EXPAND ON THIS SEWER EXTENSION PROJECT. THERE ARE PARCELS IN THE VICINITY OF THIS PROJECT THAT MAY WISH TO CONNECT TO THE NEW SEWER MAIN IN THE FUTURE. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. GRETTE ASSOCIATES HAS PREPARED A STREAM STUDY AND STREAM BUFFER MITIGATION PLAN, DATED FEBRUARY 4, 2014. 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. 0.'JE fjl0T KNOWN 10. List any governmental approvals or permits that will be needed for your proposal, if known. CITY OF RENTON RIGHT OF WAY PERMIT CITY OF RENTON GRADING PERMIT CITY OF RENTON ENVIRONMENTAL REVIEW 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. CONSTRUCTION OF APPROXIMATELY 77.5 LINEAL FEET OF 8-INCH SEWER MAIN AND ASSOCIATED APPURTENANCES. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if V:\20021active\0015\00022.000 132nd St Sewer\Permit\SEPA 132nd 20140319.doc- 2 - reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. THE PROPOSED SEWER MAIN EXTENSION IS LOCATED ALONG SOUTH 132N° STREET, WEST OF RENTON AVE SOUTH AND EAST OF SOUTH LANGSTON ROAD, IN THE NORTHEAST QUARTER OF SECTION 13 TOWNSHIP 23 RANGE 04 EAST, IN RENTON, WASHINGTON. B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (circle one); flat, ROLLING, hilly, steep slopes, mountainous, other b. What is the steepest slope on the site (approximate percent slope?) THERE IS AN AREA ALONG THE EAST STREAM BANK THAT IS APPROXIMATELY 60 PERCENT SLOPE, LOCATED AT THE SOUTH PORTION OF THE PROPOSED PROJECT SITE, C. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. ' Sr--F AT'rAGN"a-T> So�� t.ar=r,K%MAS7 t FlzOri Gv0VT�Tr+ (ZOO i d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. NO e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. EXCAVATED NATIVE MATERIAL WILL BE USED AS BACKFILL WHEN POSSIBLE. IMPORTED AND APPROVED CRUSHED GRAVEL OR FOUNDATION ROCK MAY BE UTILIZED WHEN NECESSARY TO SUPPORT NEW FACILITY STRUCTURES. ALL EXCAVATED MATERIALS NOT UTILIZED AS BACKFILL, AS WELL AS DISPLACED MATERIALS RESULTING FROM TRENCHING ACTIVITIES, WILL BE EXPORTED TO AN APPROVED DISPOSAL SITE PROVIDED BY THE CONTRACTOR. NO CHANGE OF ELEVATION OR CONTOUR IS PLANNED. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. THE POTENTIAL EXISTS FOR THE MIGRATION OF SOILS AS A RESULT OF TRENCHING ACTIVITIES, CLEARING, AND/OR OTHER RELATED CONSTRUCTION ACTIVITIES. ALL EXPOSED SOIL SURFACES WILL BE SUBJECT TO EROSIVE FORCES DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS HAVE BEEN ESTABLISHED. TESC REQUIREMENTS WILL BE DETAILED IN THE CIVIL CONSTRUCTION PLANS FOR THIS PROPOSAL BASED ON GEOTECHNICAL RECOMMENDATIONS AND CITY OF RENTON REQUIREMENTS. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? CONSTRUCTION OF THE PROPOSED SEWER PIPE WILL NOT ADD ADDITIONAL IMPERVIOUS SURFACE. TWO CONCRETE BLOCKS WILL BE INSTALLED TO SUPPORT THE AERIAL CASING AND PIPE CROSSING V:\2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA 132nd 20140319.doc- 2 - OF THE ONSITE STREAM, RESULTING IN APPROXIMATELY 12 SQUARE FEET OF NEW IMPERVIOUS SURFACE. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: TEMPORARY EROSION AND SEDIMENTATION CONTROL REQUIREMENTS WILL BE DETAILED ON THE CONSTRUCTION PLANS FOR THIS PROJECT TO INCLUDE THE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO A MINIMUM DURING CONSTRUCTION. IMMEDIATE BACKFILL OF TRENCHES, ALONG WITH TIMELY RESTORATION, WILL FURTHER REDUCE EROSION POTENTIAL. 2. AIR a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. DUST AND ENGINE EMISSIONS FROM CONSTRUCTION EQUIPMENT WILL BE PRESENT DURING CONSTRUCTION. b. Are there any off -site sources of emission or odor that may affect your proposal? If so, generally describe. NO C. Proposed measures to reduce or control emissions or other impacts to air, if any: STANDARD EMISSION CONTROL DEVICES WILL BE UTILIZED BY CONSTRUCTION EQUIPMENT. AS NEEDED, DUST CONTROL MEASURES WILL BE IMPLEMENTED TO LIMIT DUST DURING CONSTRUCTION. 3. WATER a. Surface Water: 1) Is there any surface water body on or in the immediate vicinity of the site (including year- round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. YES, THERE IS A CLASS 4 UN -NAMED STREAM ALONG THE SOUTHERN PORTION OF THE PROJECT SITE. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. `R�SS=�i'Vlt_i�X:n .rYvY � FttET-Agr� 'itea'�—:=-c.�iL �Li.1� YES, THE PROPOSED SEWER MAIN WI S THE STREAM AT THE SOUTH WEST CORNER OF THE PROJECT SITE. THE 8-INCH SEWER MAIN WILL BE CONTAINED WITHIN AN 18-INCH STEEL CASING. THE SEWER MAIN AND CASING WILL BE SUPPORTED ON EITHER SIDE OF THE STREAM BY 4-FOOT WIDE BY 1.5-FOOT DEEP BY 2-FOOT TALL CONCRETE BLOCKS. THE CONCRETE BLOCK ON THE WEST SIDE OF THE STREAM WILL BE LOCATED WITHIN THE 35-FOOT STREAM BUFFER. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. NONE VA2002\active1001500022.000 132nd St Sewer\PermitlSEPA 132nd 20140319.doc- 3 - 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. IBC 5) Does the proposal lie within a 100-year flood plain? If so, note location on the site plan. No 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No b. Ground Water 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. SHALLOW GROUNDWATER MAY BE WITHDRAWN AS NECESSARY TO DEWATER THE GROUND WHERE TRENCHING OCCURS AT OR BELOW THE WATER TABLE. ANY WITHDRAWN WATER (UNKNOWN QUANTITY) WILL BE ROUTED THROUGH A SEDIMENTATION/DEWATERING FACILITY TO REMOVE EXCESS SEDIMENT AND THEN WOULD LEAVE THE SITE VIA THE EXISTING NATURAL DRAINAGE COURSE OR THE EXISTING STORM DRAINAGE SYSTEM. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals...; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. NONE C. Water Runoff (including storm water): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters, If so, describe. RUNOFF CONSISTING OF STORM WATER AND TEMPORARY DISCHARGE FROM DEWATERING ACTIVITIES RESULTING FROM THE CONSTRUCTION OF THIS PROJECT WILL NOT PERMANENTLY CHANGE THE HYDRAULIC CHARACTERISTICS OF THE PROPOSAL SITE. RUNOFF QUANTITY AND QUALITY CONTROL MEASURES WILL BE IMPLEMENTED DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS HAVE BEEN ESTABLISHED TO REDUCE AND CONTROL RUNOFF WATER IMPACTS. 2) Could waste material enter ground or surface waters? If so, generally describe. NO d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: PROPOSED MEASURES INCLUDE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO A MINIMUM DURING CONSTRUCTION. V:\2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA 132nd 20140319.doc- 4 - 4. PLANTS a. Check or circle types of vegetation found on the site: X deciduous tree: alder, maple, aspen, other X evergreen tree: fir, cedar, pine, other X shrubs X grass pasture crop or grain X wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other water plants: water lily, eel grass, milfoil, other other types of vegetation b. What kind and amount of vegetation will be removed or altered? THE PROJECT SITE IS GENERALLY GRASSY, WITH INCREASED VEGETATION CLOSER TO THE STREAM, WHICH CONSISTS OF BLACKBERRY, ELDERBERRY, SALMONBERRY, IVY, CREEPING BUTTERCUP, AND MAGNOLIA. CONSTRUCTION OF THE SEWER PIPE WILL REQUIRE THE REMOVAL OF SOME GRASS, AND UNDERBRUSH SPECIES. C. List threatened or endangered species known to be on or near the site. NONE KNOWN d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: A PLANTING RESTORATION PLAN WILL BE PREPARED FOR THIS PROPOSAL. PRIOR TO CONSTRUCTION, CLEARING AND GRADING LIMITS WILL BE DELINEATED ON PLANS AND ONSITE TO LIMIT VEGETATION REMOVAL AND/OR DISTURBANCE. TREE PROTECTION FOR AFFECTED TREES WILL BE SHOWN ON THE PROJECT PLANS. 5. ANIMALS a. Circle any birds and animals, which have been observed on or near the site or are known to be on or near the site: Birds: hawk, heron, eagle, son birds, other Mammals: deer, bear, elk, beaver, other Fish: bass, salmon, trout, herring, shellfish, other b. List any threatened or endangered species known to be on or near the site. NONE KNOWN C. Is the site part of a migration route? If so, explain UNKNOWN d. Proposed measures to preserve or enhance wildlife, if any: DOES NOT APPLY VA2002\active\0015\00022.000 132nd St SewerTermit\SEPA 132nd 20140319.doc- 5 - 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. NONE b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. NO C. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: NONE 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. THERE IS A POTENTIAL RISK FROM THE HAZARDS ASSOCIATED WITH MACHINERY OPERATION AND GENERAL CONSTRUCTION PRACTICES, SPILLS OF MACHINE FLUIDS, RISK OF FIRE AND EXPLOSION AND OTHER SIMILAR, NORMAL, CONSTRUCTION HAZARDS EXIST. 1) Describe special emergency services that might be required. NONE ARE ANTICIPATED. IN THE EVENT OF AN EMERGENCY, LOCAL FIRE, AID OR RESCUE SERVICES AND PERSONNEL MAY BE REQUIRED. 2) Proposed measures to reduce or control environmental health hazards, if any: TRENCH BOXES, BRACING, SUMP PUMPS AND OTHER ASSOCIATED CONSTRUCTION SAFETY EQUIPMENT AND PROCEDURES WILL BE UTILIZED DURING CONSTRUCTION TO REDUCE THE POTENTIAL FOR PERSONAL INJURY. SOUND ENGINEERING AND CONSTRUCTION TECHNIQUES WILL ENSURE THAT THE SEWER MAIN AND ASSOCIATED APPURTENANCES ARE INSTALLED PROPERLY DURING CONSTRUCTION, USE OF CONTAINMENT MEASURES AND/OR MONITORING OF MOVEMENT OUTSIDE OF BUFFERS WILL BE REQUIRED BY THE CONTRACTOR DURING REPAIR OR MAINTENANCE OF CONSTRUCTION EQUIPMENT. b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? NONE 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. V:\2002\active\0015\00022.000 132nd St SewerTermMSEPA 132nd 20140319.doc- 6 - SHORT TERM CONSTRUCTION EQUIPMENT WOULD BE OPERATED DURING NORMAL WORKING HOURS DURING THE CONSTRUCTION PHASE OF THIS PROPOSAL, UNLESS APPROVED OTHERWISE BY PERMITTING AGENCIES. LONG TERM THERE WILL BE NO LONG-TERM NOISE IMPACTS RESULTING FROM THIS PROJECT. 3) Proposed measures to reduce or control noise impacts, if any: CONSTRUCTION SCHEDULES WILL BE LIMITED TO NORMAL WORKING HOURS TO REDUCE NOISE IMPACTS TO SURROUNDING RESIDENTIAL AREAS. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? RESIDENTIAL AND COMMERCIAL b. Has the site been used for agriculture? If so, describe. UNKNOWN C. Describe any structures on the site. NONE d. Will any structures be demolished? If so, what? NO e. What is the current zoning classification of the site? R-14 RESIDENTIAL 14 DWELLING UNITS PER ACRE f. What is the current comprehensive plan designation of the site? URBAN CENTER NORTH (UC-N) g. If applicable, what is the current shoreline master program designation of the site? DOES NOT APPLY h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. YES, THERE IS AN UN -NAMED CLASS 4 STREAM ON THE PROJECT SITE. i. Approximately how many people would reside or work in the completed project? NONE j. Approximately how many people would the completed project displace? NONE VA2002\active\0015\00022.000 132nd St SewerTermMSEPA 132nd 20140319.doc- 7 - k. Proposed measures to avoid or reduce displacement impacts, if any: DOES NOT APPLY I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: THE PROPOSED PROJECT IS IDENTIFIED IN THE CITY OF RENTON FACILITIES PLAN, WHICH DESIGNATES THE PROJECT AS A FUTURE SERVICE IMPROVEMENT PROJECT. 9. HOUSING a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. NONE b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. NONE C. Proposed measures to reduce or control housing impacts, if any: DOES NOT APPLY 10. AESTHETICS a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed. NOT APPLICABLE b. What views in the immediate vicinity would be altered or obstructed? NOT APPLICABLE C. Proposed measures to reduce or control aesthetic impacts, if any: NOT APPLICABLE 11. LIGHT AND GLARE a. What type of light or glare will the proposal produce? What time of day would it mainly occur? NONE b. Could light or glare from the finished project be a safety hazard or interfere with views? NOT APPLICABLE C. What existing off -site sources of light or glare may affect your proposal? NONE V:\2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA 132nd 20140319.doc- 8 - d. Proposed measures to reduce or control light and glare impacts, if any: NOT APPLICABLE 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? EARLINGTON PARK IS LOCATED LESS THAN A MILE FROM THE PROJECT SITE. b. Would the proposed project displace any existing recreational uses? If so, describe. NO C. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: DOES NOT APPLY 13. HISTORIC AND CULTURAL PRESERVATION a. Are there any places or objects listed on, or proposed for, national state, or local preservation registers known to be on or next to the site? If so, generally describe. NONE KNOWN b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. NONE C. Proposed measures to reduce or control impacts, if any: DOES NOT APPLY 14. TRANSPORTATION a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. THE PROPOSED PROJECT CAN BE ACCESSED FROM THE EAST VIA RENTON AVENUE SOUTH AND FROM THE WEST VIA SOUTH LANGSTON ROAD OR HOT" AVENUE SOUTH. b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? YES, THE CLOSEST TRANSIT STOP IS LOCATED LESS THAN A HALF MILE FROM THE PROJECT SITE AT THE INTERSECTION OF SOUTH 132ND STREET AND RENTON AVENUE SOUTH. C. How many parking spaces would the completed project have? How many would the project eliminate? NONE V:\2002\active\0015\00022.000 132nd St Sewer\Permit\$EPA 132nd 20140319.doc- 9 - d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private? NO e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. NO f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. NONE g. Proposed measures to reduce or control transportation impacts, if any: DOES NOT APPLY 15. PUBLIC SERVICES a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. Me b. Proposed measures to reduce or control direct impacts on public services, if any. DOES NOT APPLY 16. UTILITIES a. Circle utilities currently available at the site: ELECTRICI I INATURAL GAS, WATER, REFUSE ERVICEI ELEPHONE, SANITARY SEWER, OEPTIC SYSTEM, other. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. INSTALLATION OF THE NEW 8-INCH SEWER MAIN WILL REQUIRE EXCAVATION OF APPROXIMATELY 8- FOOT TO 10-FOOT DEEP TRENCHES. FACILITIES INCLUDE 8-INCH SEWER MAIN PIPE, 18-INCH STEEL CASING, MANHOLE INSTALLATION, AND ASSOCIATED APPURTENANCES, IN ADDITION TO BACKFILL AND RESTORATION. UTILITY SERVICES WILL BE PROVIDED BY THE CITY OF RENTON. C. SIGNATURE I, the undersigned, state that to the best of my knowledge the above information is true and complete. It is understood that the lead agency may withdraw any declaration of non -significance that it might issue in reliance upon this checklist should there be any willful misrepresentation or willful lack of full disclosure on my part. Proponent: Name Printed: Date: VA2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA 132nd 20140319.doc- 10 - i n uenaf ng 7� Shnppng,F.Hnter ` o i ng .. L 7 Plant - 1_ _ BOB ,, f • • • • • �y R nton ` ,.� W E S IT HILL 49': r D - ,'�- . Renlon'M�rncipal 't� ` +� ' !• sport = N4thSt a _-I 1{ R nton Mt•' -N 3rd St is or n9 Cent '10S ondery Alfport�W�y _ ..1'•�erni r. `' �0�! '-_S -5I 33rd St - � . e � 7 / 57 KING COUNTY pq y �?•`fd D Renton Higtr •� / J` _$ _ / w y e t Sc o I dar r = r Sol( 6nset Blvd 1 1 W'er S d'8t t River PaA S 3r d St L'p low-1 t s•.� 1 1 � • 1 _ � - - \' Ceda Fbver • Dog Paris 9` .44 fp I Hen nn. 5� er-Rd S �Sr4 .4 , .1 SUBMITTAL REQUIREMENTS i3 VARIANCE City of Renton Planning Division 1055 South Grady Way -Renton, WA 98057 Phone: 425-430-7200 Fax: 425-430-7231 PURPOSE: A means by which citizens may be granted relief from the strict application of the provisions of certain land use regulations. The process is intended to review situations where uniform requirements would unduly burden one property more than other properties in the vicinity. FREE CONSULTATION MEETING: Prior to submitting an application, the applicant should informally discuss the proposed development with the Planning Division. The Planning Division will provide assistance and detailed information on the City's requirements and standards. Applicants may also take this opportunity to request the waiver of the City's typical application submittal requirements, which may not be applicable to the specific proposal. For further information on this meeting, see the instruction sheet entitled "Submittal Requirements: Pre -Application." COMPLETE APPLICATION REQUIRED: In order to accept your application, each of the numbered items must be submitted at the same time. If you have received a prior written waiver of a submittal item(s) during a pre -application meeting, please provide the waiver form in lieu of any submittal item not provided. All plans and attachments must be folded to a size not exceeding 8% by 11 inches. APPLICATION SCREENING: Applicants are encouraged to bring in one copy of the application package for informal review by staff, prior to making the requested number of copies, colored drawings, or photo reductions. Please allow approximately 45 minutes for application screening. APPLICATION SUBMITTAL HOURS: Applications should be submitted to Development Services staff at the 6th floor counter of Renton City Hall, 1055 South Grady Way, between 8:00 A.M. and 4:00 P.M. Monday through Friday. Please call your assigned project manager to schedule an appointment or call (425) 430-7200 extension 4 to reach the Planning Division. Due to the screening time required, applications delivered by messenger cannot be accepted. ADDITIONAL PERMITS: Additional permits from other agencies may be required. It is the applicant's responsibility to obtain these other approvals. Information regarding these other requirements may be found at http://apps.ecy.wa.gov/opas/ All Plans and Attachments must be folded 81/2"b 11"3 APPLICATION MATERIALS: 1. ❑ Pre -Application Meeting Summary: If the application was reviewed at a "pre -application meeting", please provide 5 copies of the written summary provided to you. 2. ❑ Waiver Form: If you received a waiver form during or after a "pre -application meeting", please provide 5 copies of this form. http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/variance.doc - 1 - 12/12 3. ❑ Plat Certificate or Title Report: Please provide 3 copies of a current Plat Certificate or Title Report obtained from a title company documenting ownership and listing all encumbrances of the involved parcel(s). The Title Report should include all parcels being developed, but no parcels that are not part of the development. If the Plat Certificate or Title Report references any recorded documents (i.e. easements, dedications, covenants) 5 copies of the referenced recorded document(s) must also be provided. All easements referenced in the Plat Certificate must be located, identified by type and recording number, and dimensioned on the Site Plan. 4. ❑ Land Use Permit Master Application Form: Please provide the original plus 11 copies of the COMPLETED City of Renton Planning Division's Master Application form. Application must have notarized signatures of ALL current property owners listed on the Title Report. If the property owner is a corporation, the authorized representative must attach proof of signing authority on behalf of the corporation. The legal description of the property must be attached to the application form. 5. ❑ Project Narrative: Please provide 12 copies of a clear and concise description of the proposed project, including the following: • Project name, size and location of site • Land use permits required for proposed project • Zoning designation of the site and adjacent properties • Current use of the site and any existing improvements • Special site features (i.e. wetlands, water bodies, steep slopes) • Statement addressing soil type and drainage conditions • Proposed use of the property and scope of the proposed development • For plats indicate the proposed number, net density and range of sizes (net lot area) of the new lots • Access • Proposed off -site improvements (i.e. sidewalks, fire hydrants, sewer main, etc.) • Total estimated construction cost and estimated fair market value of the proposed project • Estimated quantities and type of materials involved if any fill or excavation is proposed • Number, type and size of any trees to be removed • Explanation of any land to be dedicated to the City • Any proposed job shacks, sales trailers, and/or model homes • Any proposed modifications being requested (include written justification) For projects located within 100 feet of a stream or wetland, please include: • Distance in feet from the wetland or stream to the nearest area of work For projects located within 200-feet of Black River, Cedar River, Springbrook Creek, May Creek and Lake Washington please include the following additional information: • Distance from closest area of work to the ordinary high water mark. • Description of the nature of the existing shoreline • The approximate location of and number of residential units, existing and potential, that will have an obstructed view in the event the proposed project exceeds a height of 35-feet above the average grade level 6. ❑ Justification for the Variance Request: Please provide 12 copies of a written statement separately addressing and justifying each of the issues to be considered by the City. The burden of proof as to the appropriateness of the application lies with the applicant. In order to approve a variance request, the Reviewing Official must find ALL the following conditions exist: • The applicant suffers practical difficulties and unnecessary hardship and the variance is necessary because of special circumstances applicable to subject property, including size, shape, topography, and location or surroundings of the subject property, and the strict application of the Zoning Code is found to deprive subject property owner of rights and privileges enjoyed by other property owners in the http://rentonwa,gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/variance.doc - 2 - 12/12 vicinity and under identical zone classification; • The granting of the variance will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity and zone in which subject property is situated; • The approval shall not constitute a grant of special privilege inconsistent with the limitation upon uses of other properties in the vicinity and zone in which the subject property is situated; and • The approval is the minimum variance that will accomplish the desired purpose. 07. ❑ Fees: The application must be accompanied by the required application fee (see Fee Schedule). Land use fees are calculated by charging the full amount for the most expensive land use permit needed and half-price for each additional land use permit. Please call (425) 430-7294 to verify the exact amount required. Checks should be made out to the City of Renton and can not be accepted for over the total fee amount. 8. ❑ Density Worksheet: Please submit 12 copies of a completed density worksheet for all residential projects. 9. ❑ Neighborhood Detail Map: Please provide 12 copies of a map drawn at a scale of 1" = 100' or 1" = 200' (or other scale approved by the Planning Division) to be used to identify the site location on public notices and to review compatibility with surrounding land uses. The map shall identify the subject site with a much darker perimeter line than surrounding properties and include at least two cross streets in all directions showing the location of the subject site relative to property boundaries of surrounding parcels. The map shall also show: the property's lot lines, surrounding properties' lot lines, boundaries of the City of Renton (if applicable), north arrow (oriented to the top of the plan sheet), graphic scale used for the map, and City of Renton (not King County) street names for all streets shown. Please ensure all information fits on a single map sheet. Kroll Map Company (206-448-6277) produces maps that may serve this purpose or you may use the King County Assessor's maps as a base for the Neighborhood Detail Map. Additional information (i.e. current city street names) will need to be added by the applicant. 10. ❑ Site Plan: Please provide 12 copies of a fully -dimensioned plan sheet drawn at a scale of 1 "=20' (or other scale approved by the Planning Division). We prefer the site plan be drawn on one sheet of paper unless the size of the site requires several plan sheets to be used. If you are using more than a single plan sheet, please indicate connecting points on each sheet. The Site Plan should show the following: • Name of proposed project • Date, scale, and north arrow (oriented to the top of the paper/plan sheet) • Drawing of the subject property with all property lines dimensioned and names of adjacent streets • Widths of all adjacent streets and alleys • Location of all existing public improvements including, but not limited to, curbs, gutters, sidewalks, median islands, street trees, fire hydrants, utility poles, etc., along the full property frontage • Location and dimensions of existing and proposed: 1.structures 2.parking, off-street loading space, curb cuts and aisle ways 3.fencing and retaining walls 4.free-standing signs and lighting fixtures 5. refuse and recycling areas 6. utility junction boxes and public utility transformers 7.storage areas and job shacks/sales trailers/model homes • Setbacks of all proposed buildings from property lines • Location and dimensions of all easements referenced in the title report with the recording number and type of easement (e.g. access, sewer, etc.) indicated http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/variance.doc - 3 - 12/12 • Location and dimensions of natural features such as streams, lakes, required buffer areas, open spaces, and wetlands • Ordinary high water mark and distance to closest area of work for any project located within 200-feet from a lake or stream 11. ❑ Architectural Elevations: Please provide 5 copies, for each building and each building face (N,S,E,W), of a 24" x 36" fully -dimensioned architectural elevation plan drawn at a scale of 1/4" _ 1' or 1/8" = 1' (or other size or scale approved by the Planning Division). The plans must clearly indicate the information required by the "Permits" section of the currently adopted Uniform Building Code and RCW 19.27 (State Building Code Act, Statewide amendments), including, but not limited to the following: • Identify building elevations by street name (when applicable) and orientation i.e. Burnett Ave. (west) elevation • Existing and proposed ground elevations • Existing average grade level underneath proposed structure • Height of existing and proposed structures showing finished roof top elevations based upon site elevations for proposed structures and any existing/abutting structures • Building materials and colors including roof, walls, any wireless communication facilities, and enclosures • Fence or retaining wall materials, colors, and architectural design • Architectural design of on -site lighting fixtures • Screening detail showing heights, elevations, and building materials of proposed screening and/or proposed landscaping for refuse/recycling areas • Cross section of roof showing location and height of roof -top equipment (include air conditioners, compressors, etc.) and proposed screening 12. ❑ Floor Plans: Please provide 5 copies of a plan showing general building layout, proposed uses of space, walls, exits and proposed locations of kitchens, baths, and floor drains, with sufficient detail for City staff to determine if an oil/water separator or grease interceptor is required and to determine the sizing of a side sewer. 13. ❑ Wetland Assessment: Please provide 12 copies of the map and 5 copies of the report if ANY wetlands are located on the subject property or within 100 feet of the subject property. The wetland report/delineation must include the information specified in RMC 4-8-120D. In addition, if any alteration to the wetland or buffer is proposed, 5 copies of a wetland mitigation plan is also required. See RMC 4-8-120D for plan content requirements. 14. ❑ Standard Stream or Lake Study: Please provide 12 copies of a report containing the information specified in RMC Section 4-8-120D. In addition, if the project involves an unclassified stream, a supplemental stream or lake study is also required (12 copies). If any alteration to a water -body or buffer is proposed a supplemental stream or lake study (12 copies) and a mitigation plan (12 copies) are also required. See RMC 4-8-120D for plan content requirements. 15. ❑ Habitat Data Report: If the project site contains or abuts a critical habitat per RMC 4-3-050135b, please provide 12 copies of a report containing the information specified in Section 4-8-120D of the Renton Municipal Code. http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/variance.doc - 4 - 12/12 16. ❑ Flood Hazard Data: Please provide 12 copies of a scaled plan showing the nature, location, dimensions, and elevations of the area in question; existing or proposed structures, fill, storage of materials, and drainage facilities. Also indicate the following: • Elevation in relation to mean sea level of the lowest floor (including basement) of all structures • Elevation in relation to mean sea level to which any structure has been floodproofed • Certification by a registered professional engineer or architect that the floodproofing methods criteria in RMC 4-3-050 have been met • Description of the extent to which a watercourse will be altered or relocated as a result of proposed development 17. ❑ Utilities Plan, Generalized (sewer, water, stormwater, transportation improvements): Please provide 5 copies of a plan drawn on 22" x 34" plan sheets using a graphic scale of 1" _ 40' (or other size or scale approved by the Planning Division) clearly showing all existing (to remain) and proposed public or private improvements to be dedicated or sold to the public including, but not limited to, curbs, gutters, sidewalks, median islands, street trees, fire hydrants, utility poles, free-standing lighting fixtures, utility junction boxes, public utility transformers, etc., along the full property frontage. The finished floor elevations for each floor of proposed and existing (to remain) structures shall also be shown. 18. ❑ Geotechnical Report: Please provide 5 copies of a study prepared and stamped by a State of Washington licensed professional engineer including soils and slope stability analysis, boring and test pit logs, and recommendations on slope setbacks, foundation design, retaining wall design, material selection, and all other pertinent elements. 19. ❑ Grading Plan, Conceptual: This is required if the proposed grade differential on -site will exceed 24" from the top of the curb or if the amount of earth to be disturbed exceeds 500 cubic yards. Please provide 12 copies of a 22" x 34" plan drawn by a State of Washington licensed civil engineer or landscape architect at a scale of 1" to 40' (horizontal feet) and 1" to 10' (vertical feet) (or other size plan sheet or scale approved by the Planning Division Plan Review Supervisor) clearly indicating the following: • Graphic scale and north arrow • Dimensions of all property lines, easements, and abutting streets • Location and dimension of all on -site structures and the location of any structures within 15-feet of the subject property or that may be affected by the proposed work • Accurate existing and proposed contour lines drawn at two -foot, or less, intervals showing existing ground and details of terrain and area drainage to include surrounding off -site contours within 100-feet of the site • Location of natural drainage systems, including perennial and intermittent streams and the presence of bordering vegetation • Setback areas and any areas not to be disturbed • Finished contours drawn at two foot intervals as a result of grading • Proposed drainage channels and related construction with associated underground storm lines sized and connections shown • Finished floor elevation(s) of all structures, existing and proposed General notes addressing the following (may be listed on cover sheet): • Area in square feet of the entire property • Area of work in square feet • Both the number of tons and cubic yards of soil to be added, removed, or relocated ` • Type and location of fill origin, and destination of any soil to be removed from site 20. ❑ Photographs of the Property: Photographs may be submitted with the application as exhibits. http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/variance.doc -5- 12/12 21. ❑ Plan Reductions: Please provide one 8'/2" x 11" legible reduction of each full size plan sheet (unless waived by your Project Planner). The sheets that are always needed in reduced form are: landscape plans, conceptual utility plans, site plan or plat plan, neighborhood detail map, topography map, tree cutting/land clearing plan, critical areas plans, grading plan, and building elevations. These reductions are used to prepare public notice posters and to provide the public with information about the project. The quality of these reductions must be good enough so that a photocopy of the reduced plan sheet is also legible. The reduced plans are typically sent in PDF format to the print shop and then are printed on opaque white mylar-type paper (aka rhino cover) to ensure legibility. If your reduced plans are not legible once photocopied, you will need to increase the font size or try a different paper type. Illegible reductions cannot be accepted. Please also be sure the reduced Neighborhood Detail Map is legible and will display enough cross streets to easily identify the project location when cropped to fit in a 4" by 6" public notice space. Once the reductions have been made, please also make one 8'/2" x 11" regular photocopy of each photographic reduction sheet. Some of the local Renton print shops that should be able to provide you with reductions of your plans are Alliance Printing (425) 793-5474, Apperson Print Resources (425) 251-1850, and PIP Printing (425) 226-9656. Nearby print shops are Digital Reprographics (425) 882-2600 in Bellevue, Litho Design (206) 574-3000 and Reprographics NW/Ford Graphics (206) 624-2040. 22. ❑ Colored Maps for Display (DO NOT MOUNT ON FOAM -CORE OR OTHER BACKING): Please color 1 copy of each of the following full size plan sheets (24" x 36") or other size approved by the Planning Division) with a 1/4" or larger felt tip marker for use in presenting the project to the Environmental Review Committee and at any required public hearing: • Neighborhood Detail Map • Site Plan • Landscaping Plan • Elevations The following colors are required: Red -North Arrow, outer property boundary. Proposed new lot lines (dashed). Do not color existing lot lines which are to be eliminated or relocated. Blue -Street names identified with lettering of at least 1" in height. Street names must be legible at a distance of 15-ft. Brown -Existing buildings (Please do not color buildings which will be demolished or removed) Yellow -Proposed buildings Light Green -Landscaped areas Dark Green -Areas of undisturbed vegetation All Plans and Attachments must be folded to 81/2" by 11" REVIEW PROCESS: Once a complete land use application package has been accepted for initial review, the Planning Division will post three notices of the pending application at or near the subject site and mail notices to property owners within 300 feet of the project site. The proposal will be routed to other City departments and other jurisdictions or agencies who may have an interest in the application. The reviewers have two weeks to return their comments to the Planning Division. Within approximately two weeks, the Planning Division will prepare a report regarding the proposal's compliance with applicable codes and the City's review criteria. The review process that follows varies depending on the type of application request. http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/variance.doc - 6 - 12/12 Administrative Variances: A public hearing is not required. The Planning Division reviews the proposal and any staff or public comments prior to making a decision. The decision to approve, conditionally approve, or deny the proposal will be mailed to all persons listed on the Master Application and all parties of record. Hearing Examiner Variances: A public hearing is required. After review of the proposal and any staff or public comments, the Planning Division staff will forward a report and recommendation to the Hearing Examiner prior to the hearing. This report will be mailed to all persons listed on the Master Application and all parties of record. Notice of the public hearing will be published in the Renton Reporter at least 10 days prior to the hearing, the site will be posted again, and parties of record will receive notices of the hearing via mail. Applicants are strongly encouraged to attend the public hearing for their proposal. City staff will first make a presentation to the Hearing Examiner about the proposal. Then the applicant and any citizens in support of the proposal will give testimony. When giving testimony, names and addresses must be stated for the record. Following this, individuals with neutral or opposing comments will give their testimony to the Hearing Examiner. City staff or the applicant will address additional questions raised throughout the hearing. The Hearing Examiner will review the proposed application and issue a final decision within 14 days of the hearing unless, at the time of the public hearing, the Hearing Examiner indicates additional time will be required for issuance of the decision. The decision to approve, conditionally approve, or deny the proposal will be mailed to all persons listed on the Master Application and all parties of record. APPEAL AND RECONSIDERATION PROCESS FOR DECISIONS: Any person, including the applicant, aggrieved by the granting or denial of an application, may make a written application for reconsideration to the Reviewing Official within 14 calendar days of the date of the decision. After review of the request, the Reviewing Official may take whatever action is deemed proper. The Reviewing Official's written decision on the reconsideration request will be mailed to all parties of record within 10 days from the date the request was filed. If any party is still not satisfied after a reconsideration decision has been issued, an appeal may be submitted within 14 days to: • The Hearing Examiner for Administrative decisions • The City Council for Hearing Examiner decisions An appeal may be filed without first requesting reconsideration by the Reviewing Official, however, it must be filed within 14 days of the date when the original decision was issued. See Renton Municipal Code, Section 4-8-110 for further information on the appeal process and time frames. BUILDING AND CONSTRUCTION PERMIT ISSUANCE AND INSTALLATION OF IMPROVEMENTS: In the City of Renton, a Building Permit must be obtained to build buildings and structures. A Construction Permit must be obtained to install utility lines, transportation improvements and undertake work in City right-of-ways. Building and Construction Permits are separate permits. Applicants may apply for building and construction permits concurrently with their request for a land use application. However, the applicant should be aware any conditions of land use permit approval may create a need for revisions to other permit applications whereby additional fees may be charged. Refunds of building permit charges are not available. If no appeals or reconsideration requests are filed within 14 days of the effective date of the decision to approve the application, the applicant may obtain building and construction permits. A construction permit for the installation of on -site and off -site utilities will be issued upon the review and approval of civil engineering drawings by the Division's Public Works Section and receipt of all applicable development and permit fees. A building permit will be issued upon the Building Section's approval of building plans and receipt of all applicable fees. http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANN ING/variance.doc - 7 - 12/12 EXPIRATION AND EXTENSIONS: Once an application has been approved, the applicant has two years to comply with all conditions of approval and to apply for any necessary permits before the approval becomes null and void. The approval body that approved the original application may grant a single one-year extension. The approval body may require a public hearing for such extension. http://rentonwa.gov/uploadedFiles/Business/PBPW/DEVSERV/FORMS_PLANNING/variance.doc - 8 - 12/12 0' 1 132ND STREET SEWER EXTENSION PROJECT iw SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN A&Grettc Associates«< ENVIRONMENTAL CONSULTANTS 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN PREPARED FOR: STANTEC CONSULTING SERVICES INC. ATTN: REBECCA SAUR 11130 NE 331LD PLACE, SUITE 200 BELLEVUE, WA 98004 PREPARED BY: GRETTE ASSOCIATESLLC 2102 NORTH 30TH STREET, SUITE A TACOMA, WASHINGTON 98403 (253)573-9300 FEBRUARY 4, 2014 CHAD WALLIN DATE BIOLOGIST Grcttc AssociatesLLC NrENVIHJ;U ,wiENTAL CONSULTANTS TABLE OF CONTENTS 1 INTRODUCTION...................................................................................................... 1 2 PROJECT DESCRIPTION......................................................................................... 1 2.1 Current Use......................................................................................................... 1 2.2 Proposed Actions................................................................................................ 1 3 EXISTING CONDITIONS......................................................................................... 3 3.1 Stream Classification.......................................................................................... 3 3.2 Existing Buffer Conditions................................................................................. 3 3.3 Topography......................................................................................................... 3 4 ANALYSIS OF ALTERNATIVES............................................................................ 4 4.1 Avoidance........................................................................................................... 5 4.2 Minimize.............................................................................................................5 4.3 Restoration.......................................................................................................... 5 4.4 Adverse Impacts........................................................ ........... I.............................. 5 4.5 Compensation..................................................................................................... 5 5 IMPACT EVALUATION.......................................................................................... 6 5.1 Affected Resources............................................................................................. 6 5.1.1 Existing Stream Buffer Functions.......................................................................... 6 5.1.2 Impact Determination............................................................................................ 6 6 MITIGATION PLAN................................................................................................. 7 6.1 Target Functions................................................................................................. 7 6.2 Goals and Objectives.......................................................................................... 7 6.3 Mitigation Design............................................................................................... 7 6.3.1 Grading Plan......................................................................................................... 7 6.3.2 Planting Plait......................................................................................................... 8 6.3.3 Planting Schedule.................................................................................................. 8 6.3.4 Preparation and Installation of Planting Materials .............................................. 9 7 COMPLIANCE INSPECTION.................................................................................. 9 7.1 Compliance Inspection........................................................................................ 9 7.2 Compliance Inspection Report ............................................................................ 9 8 BIOLOGIST QUALIFICATIONS........................................................................... 10 ChadWallin.................................................................................................................. 10 9 REFERENCES......................................................................................................... 10 LIST OF FIGURES Figure 1. King County Parcel Map (iMAP 2014)................................................................. Figure 2. Topoography map (City of Renton 2014)............................................................. LIST OF TABLES Table 1. Proposed Critical Area Impact Summary by Type ................................................. Table 2. Proposed Planting Schedule.................................................................................... LIST OF APPENDICES Appendix A. Project Site Plan Appendix B. Mitigation Plan 132" `t Sewer- Extension Project i February 26, 2014 Supplemental Stream Studv and Stream Brer-Mitigation Plan Grette Associates, LLC 2 4 6 I INTRODUCTION Grette Associates-1-c is under contract to Stantec Consulting Services, Inc. (Stantec) to prepare a Supplemental Stream Study and Stream Buffer Mitigation Plan for the City of Renton Sanitary Sewer Extension project (Project) located at 8223 South 132°d Street in Renton, WA. The Project site is located within King County Tax Parcel 2144800535 and within Section 13, Township 23North, Range 4 East, W.M. (Figure 1). This Supplemental Stream Study and Stream Buffer Mitigation Plan (Plan) has been prepared in accordance with the requirements of the City of Renton Municipal Code (RMC) Chapter 4.3.050L — Critical Area Regulations. A Grette Associates'-'-c biologist visited the subject parcel on January 14, 2014 to perform an assessment of the stream and associated stream buffer within the Project area. Prior to the site visit, the ordinary high water mark (OHWM) determination was completed by the Project proponents. During the OHWM determination, the stream boundary was flagged and surveyed for use in this Plan. The OHWM is presented in all stream related figures to assess the extent of disturbance associated with this Project. 2 PROJECT DESCRIPTION 2.1 Current Use The subject parcel is currently undeveloped. With the exception of the southern portion, the site is mostly a grass field that appears to be regularly maintained and was likely previously used as a livestock pasture. The existing vegetation outside of the maintained area consists of a forested vegetation community that is dominated by Himalayan blackberry (Rubes discolor), red elderberry (Satnbucets racemosa), salmonbery (Rublts spectabilis), red alder (Alms rubra), and black cottonwood (Populus balsam feria). Non- native, invasive species observed during the site assessment include Himalayan blackberry, English holly (Llex ayuifolium), English ivy (Hedera helix), bamboo (Bambusodae spp.), and magnolia (Magnolia spp.). These non-native, invasive species were located primarily along the western boundary of the subject parcel. 2.2 Proposed Actions The purpose of the proposed City Project is to connect several existing properties that are currently being served by onsite septic systems to the City of Renton's sewer system. The Project includes design of approximately 436 linear feet of new 8 inch PVC underground sewer main along South 132nd Street and approximately 338 linear feet of new 8 inch PVC underground sewer main between the proposed South 132nd Street alignment and the existing Earlington sanitary sewer main. The 338 linear feet of new sanitary sewer will extend through the subject parcel and will cross over an unnamed Class 4 stream in the southwest corner of the site (Appendix A). The length of the sanitary sewer line that will daylight across the Class 4 stream and associated stream buffer is approximately 58 linear feet (Appendix A). All remaining sanitary sewer line will be placed underground. 132"O Street Seiner Extension Project 1 February 26, 2014 Supplemental Stream Studt, and Stream Buffer Mitigation Plan Grette Associates, LLC Figure 1. King County Parcel Map (iMAP 2014) King County Tax Parcel Map Renton ^. _ ''fit - �• '^ '� it - _ y _ 14 } � • � ) * P .JI rAif bx' „Aced Pl i 1„YD I.. b— w mf b, IK•,p �/fY fLIM hV � 4 vYnaf( 4! fCWQf iN Wq�d IY ffi f +,On�l M�0 K. � - �„rry fr.M ro et W&W w * ft . p d C V S f�7 Mte - lsAb bM W W o• r�1� b fl! Nr d fud' HanlMf, LGvr1Wf A 110f Kfifdll W � Y fY1fr p00.� 14'Ip Cd�'h f1� �d M Yt! b ury Yslnl �eetil. FEwd. ntbld d d�e�gltibl Ll&,.1WV r.,ftlft.N-�I ,, K ^� �dn,..�K �K.>�.,� a,.r. ,�,,.. King County !ib ,n� O� •'IO'I,IfCf„ p1 HY n'ep b Ca' ofA l.cepl bI w,ien P«e,bror 01 K+p CD.AY Gft r_+.'JON 6a KM CO f, WAP- n Wft WIWWMd1 IM1p MMw„ *JaW 9D4r& W) 132"d Street Sewer Extension Project 2 Februan, 26, 2014 Supplemental Stream Studv and Stream Buffer Mitigation Plan Grette Associates, LLC 3 EXISTING CONDITIONS The onsite stream that is located in the southern portion of the subject parcel originates from two streams that likely collect surface and shallow subsurface water from the surrounding areas. These two streams join at the intersection of S. 132"d Street and 801" Ave. South and flow east towards the subject parcel. Upstream of the confluence, the two streams are conveyed through a series of culverts. However, at the confluence the streams begin to flow in a natural channel. Within this natural stream reach, the stream flows beneath several public roads prior to being fully conveyed through storrnwater features and directed to the south shore of Lake Washington. Within the subject parcel, the bankfull width of the channel is approximately 36 inches. 3.1 Stream Classification Based on the City of Renton's stream inventory (City of Renton 2014) and previous correspondence with City staff (Gerald Wasser 2010), the stream located along the southern portion of the subject parcel is a Class 4 stream. Class 4 streams are non- salmonid bearing streams with intermittent flows during years of normal precipitation. Per RMC 4.3.050L.5a, Class 4 streams are subject to a 35 foot buffer width. Within the Project area, the existing stream bed is comprised of a sand and fine/medium gravel mixture and is confined within its banks by a constructed wall of automotive tires. Tire walls armor both sides of the stream channel within the Project area. There is no evidence that these tire walls extend upstream or downstream, and it appears that the tire walls are only present within the southwestern portion of the subject parcel. 3.2 Existing Buffer Conditions The stream buffer within the Project area consists of native and non-native vegetation species that have developed several canopy layers. The dominant forested species within the stream buffer include red alder, black cottonwood, and red cedar (Thtrja plicata). Beneath the forest vegetation is a scrub -shrub sub -canopy dominated by Himalayan blackberry, red elderberry, salmonbery, and magnolia. Groundcover vegetation within the stream buffer is sparse with an occasional sword fern (Polystichum munition). However, along the western parcel boundary, groundcover is more prominent and is dominated by English ivy and creeping buttercup (Ra»unculus repens). 3.3 Topography The general topography within the subject parcel consists of a gradual south facing slope (approximately 14% slope) that extends to the approximate stream buffer boundary (Figure 2). From the stream buffer boundary to the left bank of the stream the topography increases to approximately 28% slope. The stream buffer topography associated with the right bank of the stream is approximately 58% slope. Similarly to the left bank, the area outside of the stream buffer is less steep, approximately 14% slope. According to the City of Renton's COR Maps (City of Renton 2014), both sides of the stream are mapped as regulated slopes (>25% and <40% slope). 132"° Street Sewer Extension Project 3 February 26. 2014 Supplemental Stream Stud>> and Stream Buffer Mitigation Plan Grette Associates, LLC Figure 2. Topoography map (Cite of Renton 2014). 4 ANALYSIS OF ALTERNATIVES The City of Renton, per RMC 4.8.120.D.19S, requires that any proposed project that contains a water body or associated buffer area evaluate alternative methods of developing the subject parcel. This section describes the efforts made by the project proponent to apply alternative methods to the proposed Project. An analysis of alternatives is a set of steps designed to prevent avoidable impacts to the environment and then rectify those impacts that cannot be avoided. The steps considered during the planning of this Project are described below. 132"" Street Sewer Extension Project 4 February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 4.1 Avoidance In the case of this project, avoidance is not feasible. In order to provide functioning City sanitary sewer service to existing properties that are currently being served by onsite septic systems, the proposed sanitary sewer extension will require connections between South 132nd Street and the existing Earlington sanitary sewer line. No feasible alternatives exist to provide these connections without crossing the stream channel on the subject property. 4.2 Minimize The Proposed project has been designed to minimize impacts to the critical areas within the subject parcel. As currently designed, the proposed Project would require a temporary stream buffer disturbance, approximately 902 square feet in size, that would be associated with the trenching and placement of the new 8 inch PVC sanitary sewer main. Additionally, the pipe is proposed to cross the stream channel as close to perpendicular as is practicable and will be elevated approximately 15 feet above the wetted channel to avoid disturbance to the stream channel. No disturbance to the stream bed or bank is proposed during this Project. Furthermore, the current design of the Project does not propose removal of any existing mature trees, and Best Management Practices would be employed to prevent disturbances to areas outside of the construction area. 4.3 Restoration Restoration of temporarily disturbed stream buffer areas will occur upon completion of the proposed Project (see Section 7). The proposed Project will reestablish preexisting topography and replant the temporarily disturbed stream buffer area with native vegetation. All non-native species removed during the placement of the sanitary sewer line will be disposed of at an approved offsite location, and will be replaced with native species. 4.4 Adverse Impacts Adverse impacts to the stream or stream buffer will not likely occur as a result of the proposed Project. As discussed below in Section 7.2.1, the Project will employ all necessary Best Management Practices (BMPs) to minimize erosion of disturbed surface soils and to prevent sediment -laden runoff from entering the Class 4 stream. Furthermore, all disturbed areas will be replanted with native vegetation. 4.5 Compensation With the exception of the portion of the sewer pipe that will daylight, all disturbances to the stream buffer will be temporary. The areas where the pipe will extend from the soil surface are approximately four square feet in total size. This extremely small footprint compared to the size of the stream buffer within the project area is anticipated to be insignificant based on function. Therefore, no compensation is proposed for this Project. 132" Sheet Seiner Extension Project 5 Febrtrao, 26, 2014 Supplemental Stream Studs, and Stream Buffer Mitigation Plan Grette Associates, LLC 5 IMPACT EVALUATION The proposed Project will result in unavoidable temporary impacts to the stream buffer within the subject parcel. These impacts are described in detail below. The impacts addressed in this Plan are specific to the Class 4 stream and associated buffer. 5.1 Affected Resources As discussed above, the proposed Project will temporarily disturb approximately 902 square feet of stream buffer. However, the existing stream buffer within the Project area does not provide quality buffer function due to the amount of invasive vegetation and previous alterations. Although temporary, the impacts associated with the Project would require removal of vegetation and soil disturbance within the construction area. No mature trees will be removed during this Project. No impacts to the stream bed or bank are proposed. 5.1.1 Existing Stremm Buffer Functions The stream buffer within the Project area consists of native and non-native vegetation species that have developed a stratified forest canopy. The upper forest canopy consists of mature deciduous and evergreen species that provide shading and nutrient loads to the stream and stream buffer. Beneath the upper forest canopy, the sub -canopy consists of scrub -shrub species that likely provide some shading and nutrient load as well. Due to the topography and the existing armoring of the stream bank, the buffer vegetation likely does not provide significant hydrologic function during seasonally heavy rain events. During heavy rains, the understory buffer vegetation likely does not reduce the surge effect associated with stormwater runoff in highly developed areas. The existing stream buffer likely provides moderate wildlife habitat function due to the presence of the stream and forested area. Wildlife functions within the stream buffer include small marnmal foraging and cover, passerine and raptor foraging, and amphibian foraging, breeding, and refuge. 5.1.2 Impact Determination The proposed impacts associated with the construction of the sanitary sewer line will be temporary and will not result in a net -loss of stream buffer function. Furthermore, the current design entails the least amount of impact to critical areas within the subject parcel. With the exception of the daylight portion of the sanitary sewer line, no permanent structure will be placed within the stream buffer area. The portion of the sanitary sewer line that will daylight and span the stream will not adversely affect stream or stream buffer function, as it will be elevated off of the ground and will not impede existing stream or stream buffer processes. Affected critical areas by type are summarized below in Table 1. Table 1. Proposed Critical Area Impact Summary by Type. Impact Area Size Duration... Stream Buffer Sewer Line Installation 902 square feet Temporary 132"° Street Sewer Extension Project 6 Feb•uan, 26, 2014 Supplemental Stream Stuck; and Stream Buffer Mitigation Plan Grette Associates, LLC 6 MITIGATION PLAN Mitigation will occur within the subject parcel (Appendix B, Sheet 1). Actions proposed include restoring approximately 902 square feet of stream buffer and employing BMPs during construction. 6.1 Target Functions Per RMC 4.3.050.3c, alterations to stream areas and associated buffers shall achieve equivalent or greater biological and hydrological functions. The restoration of the temporarily disturbed stream buffer area will provide greater functional value to what currently exists in the buffer area. Currently, the buffer that will be temporarily disturbed provides little buffer function due to existing non-native vegetation and very little ground cover. Restoring the temporarily disturbed buffer area will provide greater vegetation diversity and hydrological function through the planting of native shrubs and seeding of native grasses. Establishing denser native groundcover within the disturbed area will reduce surface stormwater runoff and filter out sediments and toxins from stormwater. Currently, the groundcover within the forested buffer is mostly bare and likely does not filter out significant amounts of sediment and pollutants from surface water. 6.2 Goals and Objectives The overall goal of the mitigation plan is to restore temporarily disturbed vegetation within the stream buffer. With the exception of where the sewer line extends out of the ground, the exposed portion of the sanitary sewer- line that will span the stream will not have contact with the ground and thus will not impede natural stream or stream buffer processes. Surface contact with the sewer- line will be less than four square feet in size. More specific mitigation goals include: 1. Ensure no net loss of stream buffer function; 2. Provide enhanced native plant diversity; 3. Provide enhanced water quality function. Specific functional objectives of the Plan include: 1. Restore approximately 902 square feet of disturbed stream buffer; 2. Seed all disturbed soils within the construction area. 6.3 Mitigation Design The intent of the mitigation actions at the subject parcel is to offset the temporary stream buffer disturbance associated with the Project and to ensure no net loss of stream buffer function. 6.3.1 Grading Plan Initially, the extent of the proposed work area will be clearly marked and silt fencing will be installed along the outer work limits. All vegetation within the areas proposed for excavation will be mechanically removed and disposed of at an approved upland location. Excavation, grading, and clearing limits within the stream buffer will be limited to 7.5 feet on either side of the centerline of the 8 inch PVC sanitary sewer line. 132"" Street Seiver Extension Project 7 February 26. 2014 Supplemental Stream Study; and Stream Buffer Mitigation Phm Grette Associates, LLC During all construction activities, Best Management Practices (BMPs) will be employed to minimize erosion of disturbed surface soils and to prevent sediment -laden runoff from leaving the project site. BMPs to be employed during construction may include (but are not limited to) silt fencing and/or straw bales around the perimeter of the clearing and grading areas, mulching areas immediately after completion of grading, and installation of plant material as soon as practical after grading. Once the vegetation is removed, excavation and grading will be conducted using excavators, dump trucks, and other like equipment as needed to complete the work. All excavated soils within the stream buffer will be cast into dump trucks for temporary storage and reused as back fill material in the stream buffer area. At no point will equipment extend outside of the 15 foot wide public sanitary sewer easement. Plantings within the disturbed stream buffer area will be immediately installed once the final grade is achieved. 6.3.2 Planting Plan Plant installation will be performed in accordance with the specifications outlined in this Plan. Any alterations to the planting plan due to site conditions will require approval from the City of Renton prior to installation. The project proponent is only proposing planting within the designated restoration area (Appendix B, Sheet 2). The intent of restoring stream buffer vegetation with native grass and shrub species is to provide greater plant diversity and water quality and hydrological functions within the area proposed for disturbance. Shrub species will be planted on 4 to 5 foot centers and will include Scouler's willow (S(lix scouleriana), red elderberry, red -osier dogwood (Cornits stolonlfera), and cascara (Rhamnus purshiana). A dense planting schedule is proposed based on the non-native invasive species that are present outside of the restoration area. Over planting will provide a better opportunity for native species to compete with non-native, invasive species. 6.3.3 Planting Schedule The proposed planting schedule for the restoration area is presented below in Table 2. The specific quantities of each species will be calculated during final design of the mitigation action. In order to reduce mortality, a late fall plant installation schedule (October — November) is preferred. Plants should not be installed during or immediately before freezing weather. All remaining bare soils within the restoration area will be seeded within an approved native seed mix consisting of species such as Idaho fescue (Festuca idahoensis ssp. roerneri), blue wildrye (Elymits glauctts), spike bentgrass (Agrostis exercim), and red fescue (Festuca rubra), or like native species. Table 2. Proposed Planting Schedule Common Name I Species Name I Quantity' Size S acin O.0 Stream Buffer Enhancement Scouler's willow Salix scouleriana 20 2 gallon 4' to 5' Red elderberry Sambucus racemosa 6 2 gallon 4' to 6' Vine maple Aeerc•irc•inannn 20 2 gallon 4' to 5' Cascara Rhanmus purshiana 6 2 gallon 4' to 6' ' Plant quantities will be verified following final design. 132"° Street Seiner Extension Project 8 February 26, 2014 Supplemental Stream Studv and Stream Buffer Mitigation Plan Grette Associates, LLC All plant materials to be used on the site will be native to Western Washington and will consist of nursery grown stock from a reputable, local dealer. Only native species specified in the approved plant schedule are to be used; no hybrids will be allowed. Plant substitutions must be approved by the City of Renton if specified species are not commercially available. Plant material provided will be typical of their species or variety; they will exhibit normal, densely -developed branches and vigorous, fibrous root systems. Plants will be sound, healthy, vigorous plants free from defects and all forms of infestation. 6.3.4 Preparation and Installation of Planting Materials The landscape contractor shall verify the location of all elements of the landscape plan prior to installation. The contractor may adjust the locations of landscape elements during the installation period as necessary. Circular plant pits with vertical sides will be excavated for all container stock. The pits should be at least twice the diameter of the root system, and the depth of the pit should accommodate the entire root system. The bottom of each pit will be scarified to a depth of 4 inches, and the pit should be thoroughly wetted prior to plant insertion to prevent capillary stress. The planting hole shall be amended with a mixture of topsoil and organic material if necessary to provide appropriate rooting media. Broken roots should be pruned with a sharp instrument and rootballs should be thoroughly soaked prior to installation. Set plant material upright in the planting pit to proper grade and alignment. Water- plants thoroughly midway through backfilling and again upon completion of backfilling. No filling should occur around stems. Do not use frozen or muddy mixtures for backfilling. Form a ring of soil around the edge of each planting pit to retain water, and install a 2-1/2 inch layer of mulch around the base of each container plant. 7 COMPLIANCE INSPECTION 7.1 Compliance Inspection A compliance inspection will consist of evaluating the plantings immediately after construction to confirm the Plan was followed and the plants were installed appropriately. A walk-through survey will be conducted to verify that installation conforms to the approved Plan. Photographs will be taken to document the completion of the restoration actions. 7.2 Compliance Inspection Report Within 60 days of completion of stream buffer restoration, the Project proponents will prepare and submit a compliance inspection report to the City of Renton. This report will document the implementation of the restoration actions and describe any deviations from the original Plan. The report will also describe any potential problems identified during installation and any recommended remedies to be proposed to the City. Representative photographs will be taken to further document the implementation of this Plan. 132"d Street Server Extension Project 9 Februaty 26, 2014 Supplemental Stream Studio and Stream Buffer Mitigation Plan Grette Associates, LLC i 8 BIOLOGIST QUALIFICATIONS Chad Wallin Chad Wallin is a Biologist with professional experience and training in wetland science, wetland ecology, ecological restoration, critical area monitoring, and mitigation planning. His work experience in the Pacific Northwest includes but is not limited to wetland and stream delineations, habitat assessments, marine surveys, wetland and stream restoration, wetland and stream mitigation plans, stream surveys, and related environment studies and surveys. Chad has earned a Bachelor's of Arts degree in Environmental Studies from the University of Washington along with certificates in Wetland Science and Management and Ecology Restoration through the University of Washington. In addition, Chad has completed training for Ecology's Wetland Rating System, Ordinary High Water Mark, and Calculating Compensatory Mitigation in Wetlands. For a list of representative projects, please contact him at Grette Associates. 9 REFERENCES iMAP. 2014. King County iMAP: Interactive Mapping Tool (online GIS). King County Tax Parcel Map [map online]. Accessed [27 January 2014]. URL: http:i/N\,ww.kin cg ounty.gov/operations/GIS/Maps/iMAP.as]2x. City of Renton. 2014. City of Renton COR Maps (online GIS). Critical Areas Map. Accessed [27 Janurary 2014]. URL: http://rentonwa.gov/govemment/default .aspx?id=29886. Interactive Layers = "Streams and Slopes". Gerald Wasser. 2010. Re: John Stewart Sanitary Sewer Extension, PRE10-034. Message to markr(a,)concepten�, or]. O1 November 2010. 132"d Street Sewer Extension Project 10 February 26, 2014 Supplemental Stream Studv and Stream Buffer Mitigation Plan Grette Associates, LLC 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN APPENDIX A: PROJECT SITE PLAN 13Td Street Sewer Extension Project A February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 8' WOOO EENCt (X+�,/ CONC FOOTINGS 2+00 3+00 i - T" PARCEL 2141E0-0535 97 1 EA $SYN RM-21e.9. E SE-2110- W W-2122. (APPEARS BE 12'i DI�1 SHEET CITY OF RENTON(,rL�t� APPENDIX A S 132ND STREET SANITARY SEWER LINE OF PROJECT SITE PLAN EXTENSION PROJECT tT 1 SITE ADDRESS. I DRAWING SCALE: STAIVEC PCW 8223 S. 132ND STREET. RENTON. WA 1/2• - 1'0• CKM :SY PATL-02 14 132NDSTREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN APPENDIX B: MITIGATION PLAN 132nd Street Sewer Evension Project B February 26, 2014 Supplemental Stream Studv and Stream Buffer Mitigation Plan Grette Associates, LLC e r G`• APPENDIX B h'171GAT:0N PLAN CITY OF RENTON S. 132ND STREET SANITARY SEWER LINE EXTENSION PROJECT TAX PARCEL 214480-0535 NORTH RESTORATION ZONE 1 PLANT LIST FOR RESTORATION AREAS fMABOE SCEMTYIC YN4 carOM PAr[ P/MCATQP aim Anr ucwnwi rw -mb FAC v ob-P� FACU 7 pYm ra+s+w 0 86-4.— SwrFr. FAC S- - FA ] 4+'•' n.vr� MOTE N nPwrq 6N FFN Y OF FFFPFP Nn r F{p� MM nMn w SHEET 2 APPENDIX B OF STRFAM BUPFFR PLANTING PLAN 2 WAMTRr 20K RE-5 A " MAX Orr EOO v n " DNOE 0" EOW y to h5 D, "X OTr eoUA 6 NE DNCE OTr EOlM SOUTH RESTORATION ZONE � ,ejGrerrc Associates Denis Law City Of Mayor D ti`CY p� U May 9, 2014 Community & Economic Development Department C.E."Chip"Vincent, Administrator RECEIVED John Hobson, Sewer Utilities Division MAY 12 2014 City of Renton CITY OF RENTON 1055 S Grady Way, 5`r' FL UTILITY SYSTEMS Renton, WA 98057 SUBJECT: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION 132"d Sewer Main Extension Variance, LUA14-000453 Dear Mr. Hobson: This letter is written cn behalf of the Environmental Review Committee (ERC) to advise you that they have completed their review of the subject project and have issued a threshold Determination of Non -Significance -Mitigated with Mitigation Measures. Please refer to the enclosed ERC Report, for a list of the Mitigation Measures. Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on May 23, 2014, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and information regarding the appeal process may be obtained from the City Clerk's Office, (425) 430-6510. If the Environmental Determination is appealed, a public hearing date will be set and all parties notified. If you have any further questions, please call me at (425) 430-6593. For the Environmental Review Committee, r S-Vow�� Kris Sorensen Associate Planner Enclosure cc: John Steward / Owner(s) John Hobson, COR / Applicant Rebecca Saur,Douglas Warne / Party(ies) of Record Renton City Hall • 1055 South Grady Way • Renton, Washington 98057 • rentonwa.gov 1r,1 Cit of jj t OF ENVIRONMENTAL DETERMINATION ISSUANCE OF A DETERMINATION OF NON -SIGNIFICANCE - MITIGATED (DNS-M) POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION PROJECT NAME: 132"d Sewer Maini.Extension Variance PROJECT NUMBER: LUA14-000453 LOCATION: PID 214480-0535 DESCRIPTION: The applicant, the' City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for" a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID 2144800535),'from south to north, that has an'unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the southwest"corner of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on -site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE PROPOSED ACTION DOES NOT HAVE A SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT. Appeals of the environmental determination must:6e filed in writing on or before 5:00 p.m. on May 23, ,. 2014, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by City of RMC 4-8-110 and information regarding the appeal process may be obtained from f he Renton City Clerk's Office, (425) 430-6510. IF THE ENVIRONMENTAL DETERMINATION IS APPEALED, A PUBLIC HEARING WILL BE SET AND ALL PARTIES NOTIFIED. FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY OF RENTON, DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT AT (425) 430-7200. DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION. w DEPARTMENT OF COMMUNITY r City of., yl AND ECONOMIC DEVELOPMENT ENVIRONMENTAL REVIEW COMMITTEE REPORT AND ADMINISTRATIVE VARIANCE REPORT & DECISION ERC MEETING DATE: May 5, 2014 Project Number: LUA14-000453, V-A, ECF Project Name: 132"d Sewer Main Extension Variance Project Manager: Kris Sorensen, Associate Planner Owner of Parcel John Stewart 214480-0535 with 8223 S 132" d St utility easement: Seattle, WA 98178 Owner of 132"d Right- City of Renton of -Way 1055 S Grady Way, 5th Floor Renton, WA 98057 Applicant: John Hobson, Sewer Utilities Division City of Renton 1055 S Grady Way, 5th Floor Renton, WA 98057 Contact: Rebecca Saur Stantec Consulting ServicesJnc��,, 11130 NE 33rd PI, Suite 200 Bellevue, WA 98004 Project Location: Parcel Identification Number 214480-0535 Project Summary: The City of Renton is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review from Renton Muncipal Code for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID 2144800535). The sewer connects with a sewer main along the southerly boundary of the property and runs north to 132nd. The parcel has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres) and zoned Residential-14. The proposed sewer main crosses the stream on the parcel at the southwest corner of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on -site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. Exist. Bldg. Area SF: N/A Proposed New Bldg. Area (footprint): N/A Proposed New Bldg. Area (gross): N/A w City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 2 of 19 Site Area: 9,500 sf Total Building Area GSF: N/A STAFF Staff Recommends that the Environmental Review Committee issue a RECOMMENDATION: Determination of Non -Significance - Mitigated (DNS-M). Project Location Map PART ONE: PROJECT DESCRIPTION / BACKGROUND A. EXHIBITS: Exhibit 1: Staff Report (dated May 5, 2014) Exhibit 2: 132"d Street Sewer Extension Project, Supplemental Stream.Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 Exhibit 3a: Appendix A: Project Site Plan; 132" d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 Exhibit 3b: Appendix B: Mitigation Plan (and Stream Buffer Planting Plan); 132"d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 Exhibit 4: Zoning Map Exhibit 5: Aerial Photo Exhibit 6: Project Area Site Plan & Elevation Drawing Exhibit 7: Environmental Checklist Exhibit 8: City of Renton Maps — Sanitary Sewer System Lines, Printed May 2, 2014 Exhibit 9: Washington Department of Fish and Wildlife Comment — Hydraulic Project Approval Exhibit 10: City of Renton Long -Range Wastewater Management Plan of 2010 Exhibit 11: Advisory Notes / Review Comments City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 3 of 19 B. GENERAL INFORMATION: 1. Owner of Record, Parcel 214480-0535: 2. Owner of 132"d Right -of -Way: 3. Zoning Designation: John Stewart; 8223 S 132"d St; Seattle WA 98178 City of Renton Residential —14 dwelling units per acre (R-14) and Residential — 8 dwelling units per acre (R-8) 4. Comprehensive Plan Land Use Residential Multi -family (RMF) and Residential Designation: Single Family S. Existing Site Use: Vacant 6. Neighborhood Characteristics: North: Garden and Nursery Business (R-14) East: Single-family Residential (R-14) South: Single-family Residential (R-10) West: Single-family Residential (R-10) 7. Access: S. 132" d St 8. Site Area: 53,143 sf C. HISTORICAL/BACKGROUND: Action Land Use File No. Ordinance No. Date Comprehensive Plan N/A 5484 10/18/2009 Zoning N/A 5484 10/18/2009 Annexation N/A 5484 10/18/2009 D. PUBLIC SERVICES: 1. Utilities: The project is installation of new sewer pipes by the City of Renton. 2. Streets: South 132"d St abuts the northern property line of the private parcel through which the sewer main will be extended. 3. Fire Protection: Fire and emergency services would be provided by the City of Renton Fire Department. PART TWO: ENVIRONMENTAL REVIEW In compliance with RCW 43.21C.240, the following environmental (SEPA) review addresses only those project impacts that are not adequately addressed under existing development standards and environmental regulations. City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 4 of 19 A. ENVIRONMENTAL THRESHOLD RECOMMENDATION Based on analysis of probable impacts from the proposal, staff recommends that the Responsible Officials: Issue a DNS-M with a 14-day Appeal Period. B. MITIGATION MEASURES 1. The applicant shall comply with the conclusions stated in the 132"d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 (Exhibit 2). C. ENVIRONMENTAL IMPACTS The Proposal was circulated and reviewed by various City Departments and Divisions to determine whether the applicant has adequately identified and addressed environmental impacts anticipated to occur in conjunction with the proposed development. Staff reviewers have identified that the proposal is likely to have the following probable impacts: 1. Earth Impacts: The proposal is to create an extension of sewer main approximately 338 linear feet north to south and at the northern extension extend the pipe approximately 436 east to west within the 132"d Street right-of-way. The majority of the 8-inch wastewater pipe would be underground with the exception of the crossing of a Class 4 stream, where temporary grading would occur to install part of the extension that will .be above the stream where the ground elevation is lower _in elevation., There is.. 58 feet of pipe that would daylight across the Class 4 stream and associated stream buffer. Approximately 902 square feet of the stream's associated buffer would be temporarily impacted through the proposed project construction. The proposal would limit excavation, grading, and clearing limits within the stream buffer to 7.5 feet on either side of the centerline of the 8-inch sanitary sewer line. Machinery would be used for trenching, clearing, and other related construction activity to install two supports for the daylit pipe and installation of the pipe and related casing. Temporary grading of the site would occur during construction and the existing grade would be re-established as part of the project. Imported and approved crushed gravel or foundation rock may be utilized when necessary to support new facility structures. All vegetation within the areas proposed for excavation would be mechanically removed and disposed of. Native soil material would be used as backfill when possible. All excavated materials not utilized as backfill as well as displaced materials resulting from trenching activities would be exported to an approved disposal site. Impacts to the stream and the associated buffer are anticipated to be temporary as the only impacts would be during construction Mitigation Measures: No further mitigation required. Nexus: Nexus: Not applicable. City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 5 of 19 2. Water a. Wetland, Streams, Lakes Impacts: A Supplemental Stream Study and Stream Buffer Mitigation Plan for the 132"d Street Sewer Extension Project, was prepared by Grette Associates Environmental Consultants, dated February 4, 2014. The study states that a Class 4 stream is located on the private parcel (PID 2144800535) owned by John Stewart (Exhibit 2). The city has a utility easement on the private parcel. The Stewart owned parcel with the stream is currently undeveloped, primarily pasture with trees and low -canopy vegetation around the stream and buffer areas. The site where the stream is located has a gradual south facing slope of approximately 14%, with steeper slopes along the stream bank, ranging from 28% on the left bank of the stream, and 58% on the right bank of the stream. The existing vegetation outside of the pasture area consists of a forested vegetation community dominated by Himalayan blackberry, red elderberry, salmonberry, red alder and black cottonwood. Non-native invasive species on -site include Himalayan blackberry, English holly, English ivy, bamboo and magnolia primarily along the western boundary of the subject site. The existing stream buffer likely provides moderate wildlife habitat function for small mammal foraging and cover, passerine and raptor foraging, and amphibian foraging, breeding, and refuge. Vegetation specifically within the stream buffer area generally consists of red alder, black cottonwood, and red cedar for trees, with the scrub -shrub lower canopy dominated by blackberry, red elderberry, salmonberry, and magnolia. Buffer groundcover is sparse with occasional sword fern. In:o.rder to allow the.extensio.n.ofith-e.sewer.through_the private property andAuthe 132"d-right=of-= way, the applicant is proposing to underground the majority of the new sewer line with a daylit portion within the Class 4 stream 35-foot buffer. Work is proposed in the buffer, and the Critical Areas Ordinance of the city requires a Supplemental Stream Study and Stream Buffer Mitigation Plan where work would be done in addition to an Administrative Variance to allow the work. Adverse impacts were analyzed as part of the stream buffer mitigation plan (Exhibit 2) and adverse impacts would not likely occur as a result of the temporary work within the buffer area where the sewer pipe would enter the ground on either side of the stream. The area where the pipe will extend from the soil surface are approximately four square feet in total size. An area within the buffer would be cleared of vegetation and graded down for the pipe placement, and regarded to the existing grade. Following the pipe installation and regarding, new plantings will be installed consisting of native Western Washington species in a denser planting regimen than exists on site currently. Accordint to the provided stream study, the replacement of native species at a denser coverage than the existing native and non-native plants would most likely provide greater hydrologic function during seasonally heavy rain events than what currently exists. The proposed denser native groundcover would most likely filter out sediments and toxins from stormwater. Additionally, the daylit pipe that spans the stream would most likely not adversely affect stream or stream buffer function as it would be elevated above the stream and make a small entry into either side of the stream's buffer area, becoming underground at those entries. Impacts to the stream and the associated buffer are anticipated to be temporary as the only impacts would be during construction. City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 131ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, Eff Report of May 5, 2014 Page 6 of 19 Mitigation Measures: 1. The applicant shall comply with the 132r'd Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 (Exhibits 2, 3, and 4). Nexus: SEPA Environmental Regulations, RMC 4-3-050 Critical Areas. 3. Utilities Impacts: The proposed sewer main extension consists of 8-inch PVC pipe primarily undergrounded. For the portion of the pipe proposed to be daylighted, the pipe would be encased within an 18-inch steel casing. The north to south route across the private parcel is roughly 338 linear feet, with 58 of those linear feet being the proposed daylighted extension. Within the 132"d right-of-way, the proposal is of approximately 436 linear feet underground. Mitigation Measures: No further mitigation required. Nexus: Nexus: Not applicable. D. COMMENTS OF REVIEWING DEPARTMENTS The proposal has been circulated to City Department and Division Reviewers. Where applicable, their comments have been incorporated into -the text of this report and/or- `-'Advisory Notes-to.Applicant:" -` ✓ Copies of all Review Comments are contained in the Official File and may be attached to this report. PART THREE: ADMINISTRATIVE VARIANCE REVIEW A. DEPARTMENT ANALYSIS: 1. Compliance with ERC Conditions The applicant shall comply with the 2 SEPA mitigation measures. 2. Staff Review Comments Representatives from various city departments have reviewed the application materials to identify and address issues raised by the proposed development. These comments are contained in the official file and the essence of the comments has been incorporated into the appropriate sections of this *report and the Departmental Recommendation at the end of this report. 3. Consistency with Variance Criteria Section 4-9-250B.10, "Special Review Criteria — Public/Quasi-Public Utility or Agency Altering - Stream/Lake or Wetland Regulations," lists 10 criteria that the Planning Director is asked to consider, along with all other relevant information, in making a decision on an Administrative Variance application. These include the following: City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 7 of 19 The Planning Director shall have authority to grant an administrative variance upon making a determination, in writing, that the conditions specified below have been found to exist: a. Public policies have been evaluated and it has been determined by the Department Administrator that the public's health, safety, and welfare is best served; The Renton Comprehensive Plan policies related to wastewater have been evaluated. The area where the sewer extension is being provided is zoned for single-family and multi -family development and the much of this area of Renton does not currently have sewer provided, as many existing homes are hooked up to individual septic service. The policies and objectives below were part of this evaluation. • Objective U-A: Provide an adequate level of public utilities in response to and consistent with land use, protection of the environment, and annexation goals and policies. • Objective U-B: Provide and maintain safe, reliable and adequate utility facilities and services for the City's current and future service area to meet peak -anticipated demands of the City in an efficient, economic, and environmentally responsible manner. • Policy U-13. Coordinate the extension of utility services with expected growth and development. • Policy U-55. Ensure and encourage the use of the sanitary sewer system within urban areas in a manner consistent with land use and environmental protection goals and policies. • Policy.U-58...Adeguate sewer service capacity_should be assured.priorto. _the.approvai.of_.any new development application (e.g. short plat, long plat, multifamily, commercial, and industrial development). The proposal additionally meets the Renton Critical Areas Ordinance related code requirements for both the Approval of Stream Mitigation Plan and Alterations of Streams or Associated buffers for Utility projects. The Critical Areas Ordinance requires a supplemental stream study. and stream buffer mitigation plan, per RMC 4-3-050.L.ii, as alterations of the on -site stream's buffer would be altered through the proposal and as impacts are identified within the stream's buffer area. Approval of Stream Mitigation Plan, RMC 4-3-050.L.ii, "When Supplemental Stream or Lake Study is Required" and "When Stream or Lake Mitigation Plan is Required," were used in evaluating the report. The code text follows with staff comments in the right column: Code Text Staff Comment b. When Supplemental Stream or Lake Study is Required: The Supplemental Study required. applicant shall be required to conduct a supplemental stream or lake study per RMC 4-8-120 if a site contains a water body or buffer area and changes to buffer requirements or alterations of the water body or its associated buffer are proposed, either administratively or via a variance request. c. When Stream or Lake Mitigation Plan is Required: The applicant Impacts are identified, a shall be required to conduct a stream or lake mitigation plan per RMC mitigation plan is required. City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE_ LUA24-000453, V-A, ECF Report of May 5, 2014 Page 8 of 19 4-8-120 if impacts are identified within a supplemental stream or lake study. The approval of the stream or lake mitigation plan by the Administrator shall be based on the criteria located in subsection L3c(ii) of this Section. i. Timing of Mitigation Plan — Final Submittal and Commencement: Final mitigation plan submitted When a stream or lake mitigation plan is required, the applicant shall (Exhibit 2). submit a final mitigation plan for the approval of the Administrator prior to the issuance of building or construction permits, whichever comes first. The applicant shall receive written approval of the final mitigation plan prior to commencement of any mitigation activity. ii. Criteria for Approval of Stream or Lake Mitigation Plan for Approval criteria reviewed in the Alterations of Streams and Lakes or Associated Buffers: In order to boxes below. approve a stream or lake mitigation plan the Administrator shall find that the plan demonstrates compliance with the following criteria: (a) Mitigation Location: Mitigation location shall follow the preferences in subsections 1_3c(ii)(a)(1) to (4) of this Section. Basins and subbasins are indicated in subsection Q of this Section, Maps: (1) On -Site Mitigation: On -site mitigation is required unless a finding On -site mitigation is required is made that on -site mitigation is not feasible or desirable; and proposed. (2) Off -Site Mitigation within Same Drainage Subbasin as Subject No off -site mitigation not -Site: Off -site mitigation may be`allowed Wheri located within the required. - same drainage subbasin as the subject site and if it achieves equal or improved ecological functions over mitigation on the subject site; (3) Off -Site Mitigation within Same Drainage Basin within City No off -site mitigation not Limits: Off -site mitigation may be allowed when located within the required. same drainage basin within the Renton City limits if it achieves equal or improved ecological functions within the City over mitigation within the same drainage subbasin as the project; (4) Off -Site Mitigation within the Same Drainage Basin Outside the No off -site mitigation not City Limits: Off -site mitigation may be allowed when located within required. the same drainage basin outside the Renton City limits if it achieves equal or improved ecological functions over mitigation within the same drainage basin within the Renton City limits and it meets City goals. (b) Mitigation Type: Types of mitigation shall follow the preferences in Review of preferences in the subsections 1_3c(ii)(b)(1) to (4) of this Section: boxes below. (1) Daylighting (returning to open channel) of streams or removal of Existing stream is daylighted as manmade salmonid migration barriers; existing and will stay the same. No salmonids are present in Class 4 streams. (2) Removal of impervious surfaces in buffer areas and improved No impervious surfaces exist in buffer area currently. Two City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 9 of 19 biological function of the buffer; cement blocks are proposed to support the above stream pipe crossing, and one of them (the easterly) would be located within the 35-foot buffer. The support is 4-foot wide, 1.5-foot deep, by 2-feet in height and would be an added impervious surface within the buffer. Additionally, the daylighted pipe and casing would create an aerial impervious surface not on the ground. The addition of impervious surface is included in this variance request. (3) In -stream or in -lake mitigation as part of an approved watershed No in -stream work proposed. basin restoration project; (4) Other mitigation suitable for site and water body conditions that See subsection V below. meet all other provisions for a mitigation plan. Equivalency or greater is met through proposal. In all cases, mitigation shall provide for equivalent or greater biological functions per subsection 1_3c(ii)(e) of this Section. (c) Contiguous Corridors: Mitigation sites shall be Located to .preserve Mitigation is on -site,, at area .._; . or achieve contiguous riparian or wildlife corridors to minimize the where pipe exits and enters the isolating effects of development on habitat areas, so long as mitigation ground within the buffer. of aquatic habitat is located within the same aquatic ecosystem as the area disturbed; and (d) Non -Indigenous Species: Wildlife or fish species not indigenous to No wildlife or fish species would the region shall not be introduced into a riparian mitigation area be introduced. Plantings would unless authorized by a State or Federal permit or approval. Plantings not consist of non-native plants, shall be consistent with subsection L6c of this Section; and see subsection below, "Restrictions and Maintenance". (e) Equivalent or Greater Biological Functions: The Administrator shall The proposed mitigation plan, utilize the report "City of Renton Best Available Science Literature page 7 of Exhibit 2, would Review and Stream Buffer Recommendations" by AC Kindig & provide greater functional value Company and Cedarock Consultants, dated February 27, 2003, unless than what exists where non - superseded with a City -adopted study, to determine the existing or native vegetation would be potential ecological function of the stream or lake or riparian habitat replaced with native plantings that is being affected. Mitigation shall address each function affected that will additionally reduce by the alteration. Mitigation to compensate alterations to stream/lake surface water runoff and filter areas and associated buffers shall achieve equivalent or greater out sediments and toxins. biologic and hydrologic functions and shall include mitigation for adverse impacts upstream or downstream of the development proposal site. No net loss of riparian habitat or water body function shall be demonstrated; and (f) Minimum Mitigation Plan Performance Standards: See Subsection This is a City project, and as such, no additional funds are City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 10 of 19 F8 of this Section. needed because the failure would be supported in the City general fund or by wastewater utility funds. (g) Additional Conditions of Approval: The Administrator shall Mitigation measures for condition approvals of activities allowed within or abutting a proposal are provided as part of stream/lake or its buffers, as necessary to minimize or mitigate any the buffer mitigation plan. potential adverse impacts. Conditions may include, but are not limited These measures are listed as to, the following: part of the staff recommended decision. (1) Preservation of critically important vegetation and/or habitat Recommended conditions are: features such as snags and downed wood; Clearly marked work limits; disposal of existing vegetation off -site; BMPs used to minimize (2) Limitation of access to the habitat area, including fencing to deter unauthorized access; erosion and prevent sediment runoff; No equipment to extend outside the 15-foot wide sewer (3) Seasonal restriction of construction activities; and easement; planting in buffer area immediately installed once (4) Establishment of a duration and timetable for periodic review of mitigation activities. final grade is achieved; plant installation performed as outlined in mitigation plan (Exhibit 2); Plant materials must be native to Western -..Washington,(no ..hybrids =_ allowed); and required Compliance report within 60 days of restoration. (h) Based on Best Available Science: The applicant shall demonstrate Exhibit 2 provides an Impact that the mitigation is based on consideration of the best available Evaluation on page 6. The science as described in WAC 365-195-905; or where there is an proposed activity area does not absence of valid scientific information, the steps in RMC 4-9-250F are currently provide quality buffer followed. function due to invasive vegetation and previous alterations. The proposal "will not result in a net -loss" of stream buffer function (page 6). iii. Performance Surety: The Administrator shall require a This is a city project, as such no performance surety to ensure completion and success of proposed additional funds are needed mitigation, per subsection G of this Section and RMC 4-1-230. because the failure would be supported by the general fund or wastewater utility funds. iv. Alternative Mitigation: The mitigation requirements set forth in Alternative mitigation is not this subsection L3 may be modified at the Administrator's discretion if required. the applicant demonstrates that improved habitat functions, on a per function basis, can be obtained in the affected sub -drainage basin as a result of alternative mitigation measures. 6. Stream or Lake Buffer Use Restrictions and Maintenance: Any activity or proposal subject to this subsection L shall comply with the City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 11 of 19 following standards within required buffer areas: a. Preservation of Native Vegetation: Existing native vegetation Native vegetation and trees are shall be preserved to the extent possible, preferably in not being impacted within consolidated areas. buffer area except for the an area of roughly 902 sf. b. Revegetation Required: Where water body buffer Revegetation is required and is disturbance has occurred. in accordance with exemption or proposed (Exhibit 2). development permit approval or other activities, revegetation with native vegetation shall be required. c. Use of Native Species: When revegetation is required, Native species, not hybrids, approved native species, or other appropriate species from Western Washington are naturalized to the Puget Sound region shall be used. A variety of being proposed for plantings in species shall be used which serve as food or shelter from the buffer area disturbed as part climatic extremes and predators, and as structure and cover for of the proposed project. reproduction and rearing of young. d. Removal of Noxious Species: When required as a condition of Non-native plants within the approval, noxious or undesirable species of plants shall be buffer work area will be removed or controlled so as to not compete with native removed from the site. vegetation. e. Impervious Surface Restrictions: Where impervious surfaces No impervious surface area exist in buffer areas, such impervious surfaces shall not be _. currentiv,. exists within the buffer . increased or expanded within the buffer area. The extent of area. Two cement blocks are�� impervious surfaces within the buffer area may only be proposed to support the above rearranged if the reconfiguration of impervious surfaces and stream pipe crossing, and one of restoration of prior surfaced areas is part of an enhancement them (the easterly) would be proposal that improves ecological function of the area protected located within the 35-foot by the buffer. buffer. The support is 4-foot wide, 1.5-foot deep, by 2-feet in height and would be an added impervious surface within the buffer. Additionally, the daylighted pipe and casing would create an aerial impervious surface not on the ground. Criteria for Permit Approval — Class 2 to 4 standards are as follows, per RMC 4-3-050L.7: Code Text 7. Criteria for Permit Approval — Class 2 to 4: Permit approval for projects on or near regulated water bodies shall be granted only if the approval is consistent with the provisions of this subsection L, and complies with the following: Staff Comments a. Creation of Native Growth Protection Areas Required: As a A future land use application for condition of any approval for any development permit issued the private parcel with the City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 12 of 19 pursuant to this Section, the property owner shall be required to stream would require as a create a native growth protection area containing the stream/lake condition of approval the, area and associated buffers based upon field investigations creation of native growth performed pursuant to subsection E4 of this Section; and protection area at minimum. b. At least one of the following conditions must apply: i. A proposed action meets the standard provisions of this No net loss standard is met as Section and results in no net loss of regulated riparian area or proposed in the buffer shoreline ecological function in the drainage basin where the mitigation proposal (Exhibit 2). site is located; or ii. A proposed action meets alternative administrative standards No alternative standards pursuant to this Section and the proposed activity results in no required. net loss of regulated riparian area or shoreline ecological function in the drainage basin where the site is located; or iii. A variance process is successfully completed and the This Exhibit 1 administrative proposed activity results in no net loss of regulated riparian area variance provides this or shoreline ecological function in the drainage basin where the requirement. site is located. There are two criteria for Administrative Approval -of Utilities in a stream buffer (RMC 4-3- 050.L.b) where new utility lines and facilities may be permitted to cross water bodies in t accordance with an approved supplemental stream study. The project was designed to meet these criteria. The criteria are: For Alterations of Streams Mitigation, RMC 4-3-050.L.8.b, "Alterations of Streams and Lakes or Associated Buffers — Utilities," was used in evaluating the report. Code Staff Comments b. Alterations of Streams and Lakes or Associated Buffers — Utilities: i. Criteria for Administrative Approval of Utilities in Stream/Lake or Buffer: New utility lines and facilities may be permitted to cross water bodies in accordance with an approved supplemental stream/lake study, if they comply with the following criteria: (a) Fish and wildlife habitat areas shall be avoided to the maximum Avoidance of working in the extent possible; and stream buffer is not feasible. Adverse impacts on wildlife habitat and fish should be minimal if any, as the stream will not be disturbed nor trees taken down and the disturbed area grade is proposed to be kept the same with the removal of non-native plants and City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 13 of 19 replacement of native plants that would provide greater biological function to the site. (b) The utility is designed consistent with one or more of the following Seasonal work shall be methods: consistent with the approved H PA. (1) Installation shall be accomplished by boring beneath the scour Boring is not proposed. depth and hyporheic zone of the water body and channel migration zone; or (2) The utilities shall cross at an angle greater than sixty (60) degrees The angle of the crossing is to the centerline of the channel in streams or perpendicular to the greater than 60 degrees (Sheet channel centerline; or 1 of Appendix B of Exhibit 4). (3) Crossings shall be contained within the footprint of an existing This is a new utility and crossing road or utility crossing; and would be within an existing 15 foot utility easement on the parcel 214480-0535. (c) New utility routes shall avoid paralleling the stream or following a The new utility route would not down -valley course near the channel; and parallel the stream or follow a down valley course near the channel (Sheet 1 of Appendix B of Exhibit 4). (d) The utility installation shall not increase or decrease the natural No migration impact is foreseen rate of shore migration;or_channel ,migration,;_and , -< pursuant_to,t.he provided study..:, (Exhibit 2). (e) Seasonal work windows are determined and made a condition of approval; and (f) Mitigation criteria of subsection L3c(ii) of this Section are met. The above matrix provides review of the code subsection requirements. The project meets the criteria if all conditions of approval are met. In consideration of the public safety and welfare and the aerial pipe crossing, a risk management assessment should be considered. Staff recommends as a condition of approval of the variance that the City's Risk Manager evaluate the exposed pipe installation and make a determination of whether additional safety precautions should be made. Staff has evaluated public policies and it has been determined that the public's health, safety, and welfare would be served if the subject variance is approved.. b. Each facility must conform to the Comprehensive Land Use Plan and with any adopted public programs and policies; The sewer extension facility conforms to the Comprehensive Land Use Plan and the adopted public policies (see above under Criteria `A') and programs. The proposal is within the Downtown Wastewater Collection Basin. The area this sewer extension would provide service to was annexed into Renton in 2009 as part of the Earlington Annexation (Ordinance 5484) where the land use was established as a mix of single-family and multi -family zoning City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 14 of 19 (Residential-8, Residential-10, and Residential-14). The area is primarily developed with single family homes and vacant properties with an expectation through the Comprehensive Land Use designations that the properties would provide residential infill opportunities and ultimately increase the number of people living in the area. Therefore, the proposed facility would conform to the comprehensive land use plan and with adopted public programs and policies. c. Each facility must serve established, identified public needs; The proposed sewer extension project would serve established, identified public needs. A conclusion and recommendation of the City of Renton Long -Range Wastewater Management Plan of 2010 states that, "where the City annexes an area that is currently unsewered by another municipality, the City should provide sewer service" (Exhibit 12, p.1-8). Although some of the Earlington Annexation area is provided with wastewater service, there is a gap in sewer service in the area of the proposed project. Therefore, the proposed facility would serve established, identified public needs. d. No practical alternative exists to meet the needs; Existing parcels are unable to redevelop without sewer availability. No other wastewater utility provides service to this area. The zoning and land use designations for the area that would be served by the proposal is established for an increase in residential units and population. Alternative locations were evaluated and pursued for the sewer extension, within the westerly subdivision of the parcel where the extension is now proposed. The neighbors that would be required to create a local improvement district or similar body did not provide sufficient sup'portIo--provide an easement -and spatefor a sewer -extension. Additional ly;-a-tra-ct•with in the subdivision that is roughly within the private street was pursued as a possible location of the wastewater line. This tract was not co -owned by all surrounding property owners, and was sold to an out of state person that was not interested in the project proposal. Therefore, no other practical alternative exists to meet the needs. e. The proposed action takes affirmative and appropriate measures to minimize and compensate for unavoidable impacts; The proposal is to expand the wastewater utility to unserviced areas through a stream buffer area. The stream is a Class 4 stream, and classified as non-salmonid bearing. Where the sewer extension will intrude the stream buffer area, an analysis of alternatives were established to prevent avoidable impacts to the environment and rectify those impacts that cannot be avoided. As seen on page 5 of the Supplemental Stream Study and Stream Buffer Mitigation Plan (Exhibit 2), the proposal provides analysis of the Critical Areas requirement. The proposal's analysis looks at alternatives designed to prevent avoidable impacts to the environment and rectify those impacts that could not be avoided. The analysis looked at avoidance, minimization of impact, restoration, adverse impacts possibilities, and compensation. The Supplemental Stream Study and Stream Buffer Mitigation Plan (Exhibit 2) provides the proposed project affirmative and appropriate measures to minimize and compensate for unavoidable impacts. f. The proposed activity results in no net loss of regulated wetland or stream/lake area, value, or function in the drainage basin where the wetland, stream or lake is located; City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 15 of 19 The proposal provided a Supplemental Stream Study and Stream Buffer Mitigation Plan (Exhibit 2). The proposal includes a review of alternatives to the work being proposed within the stream buffer. The analysis includes avoidance, minimization, restoration, adverse impacts, and compensation. Avoidance of work in the buffer is not feasible. The project is designed to minimize impact, where the proposed pipe over the stream would be approximately 15 above the stream, no disturbance to the stream bed or stream bank is proposed, the stream is crossed as close to perpendicular as possible, no existing trees would be impacted, and BMPs would be used during construction. The'installation of a cement support block within the buffer area would result in a 4-foot by 1.5-foot (6 square feet) impervious structure support the pipe as it enters the ground. Restoration would reestablish existing topography following work, remove non-native plantings, and restore the area with more dense native planting. The mitigation proposal determines "adverse impacts to the stream or stream buffer will not likely occur as a result of the proposed project" (Exhibit 2, page 5). Given the restoration of the disturbed buffer area, where the existing sparse vegetation consisting of some non-native plants would be replanted with native plants at a denser cover and provide greater hydrological and biological conditions to the buffer, the added impervious surface would not create a net loss of stream area value or function in the drainage basin. The proposal analysis determines that the project would "not result in a net -loss" of stream buffer function (Exhibit 2, page 6). Therefore, the proposed activity results in no net loss of regulated wetland or stream/lake area, value, or function in the drainage basin where the wetland, stream or lake is located. g. The proposed activities will not jeopardize the continued existence of endangered, threatened or sensitive species as listed by the Federal government or the State; No endangered, threatened or sensitive species are within the parcel with the stream and associated stream buffer where the project wastewater pipe crossing is proposed. The Environmental Checklist submitted with the proposal, within the Environmental Elements subsection of the checklist, does not list any endangered, threatened or sensitive species (Exhibit 2). Therefore, the proposed activities will not jeopardize the continued existence of endangered, threatened or sensitive species as listed by the Federal government or the State. h. That the proposed activities will not cause significant degradation of groundwater or surface water quality; The proposal stream buffer mitigation plan (Exhibit 2) suggests that, "Adverse impacts to the stream or stream buffer will not likely occur as a result of the proposed project. As discussed... the project will employ all necessary BMPs to minimize erosion of distrubed surface soils and to prevent sediment -laden runoff from entering the Class 4 stream. Furthermore, all disturbed areas will be replanted with native vegetation" Therefore, the proposed activities will not cause significant degradation of groundwater or surface water quality. i. The approval is the minimum variance necessary to accomplish the desired purpose; and City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 16 of 19 The proposed project would receive an approval for the minimum variance necessary to accomplish the extension of the sewer main north across the Class 4 stream and within the 35 foot stream buffer area. Therefore, the approval is the minimum variance necessary to accomplish the desired purpose. j. The proposed variance is based on consideration of the best available science as described in WAC 365-195-905; or where there is an absence of valid scientific information, the steps in RMC 4-9-25OF are followed. Where alteration of the stream buffer occurs, the proposed buffer mitigation work is required by Renton code to achieve equivalent or greater biological and hydrological functions. The existing vegetation (including non-native plants) and area that would be disturbed would be restored following temporary disturbance would be restored with native Western Washington plantings and at a denser covering than existing. The proposed plantings would provide greater native groundcover than existing and reduce stormwater runoff and filter out sediments and toxins from stormwater. The provided analysis and mitigation plan (Exhibit 2) are based on best available science. B. FINDINGS: Having reviewed the written record in the matter, the City now makes and enters the following: 1. Request: The applicant has requested approval of an administrative variance from RMC 4-3-050 for a proposed sewer pipe that would enter the ground in two places within a Class 4 stream buffer. 2. Administrative Variance: The applicant's administrative variance submittal materials comply with the requirements necessary to process a variance request. The applicant's site plan for the full sewer extension, the site plan for the buffer mitigation work, supplemental stream study and stream buffer mitigation plan are provided Exhibits 2 through 4. 3. Existing Land Use: Right-of-way and a vacant parcel. The proposal is a sewer extension that includes crossing a stream on a privately owned parcel and additional extension in the S 132nd right-of-way. 4. Zoning: The subject property where the stream is located is within the Residential —14 dwelling units per acre (R-14) zone (Exhibit 4). Along the 132nd right of way, between Renton Ave S to the east and 80th Ave S to the west, the southerly properties are zoned R-14 and northerly properties are zoned both R-14 and Residential-8 dwelling units per acre (R-8) zone (Exhibit 4). 5. Topography: The site where the stream is located has a gradual south facing slope of approximately 14%, with steeper slopes along the stream bank, ranging from 28% on the left bank of the stream, and 58% on the right bank of the stream. 6. Sewer Pipe Proposed: On the private property, the proposed 338 linear feet of pipe would be 8 inch PVC underground except for the daylighted area within the stream buffer on the private parcel, where the daylit pipe would be within an 18-inch steel casing. Within the right-of-way, the underground main would be approximately 436 linear feet of 8-inch PVC. 7. Due to the presence of a stream, Environmental (SEPA) Review was conducted and a DNS-M was issued on May 5, 2014 (Exhibit 1). ' City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 17 of 19 8. The proposal complies with RMC 4-3-050, Critical Areas Regulations, and RMC 4-9-250, Variances, Waivers, Modifications, and Alternatives. C. CONCLUSIONS: 1. The proposal would meet the standards of the Critical Areas Regulations 4-3-050 by providing required mitigation for work conducted within a Class 4 stream's buffer area. 2. The applicant's proposal to work within a Class 4 stream buffer area meets the ten criteria to be considered in making a decision on a variance request, if all conditions of approval are complied with, as specified in RMC 4-9-250B.10: a) Public policies have been evaluated and it has been determined by the Department Administrator that the public's health, safety, and welfare is best served; b) Each facility must conform to the Comprehensive Land Use Plan and with any adopted public programs and policies; c) Each facility must serve established, identified public needs; d) No practical alternative exists to meet the needs; e) The proposed action takes affirmative and appropriate measures to minimize and compensate for unavoidable impacts; f) The proposed activity results in no net loss of regulated wetland or stream/lake area, value, or function in the drainage basin where the wetland, stream or lake is located; g) The proposed activities will not jeopardize the continued existence of endangered, threatened or sensitive species as listed by the Federal government or the State; h)That the proposed activities will not cause significant degradation of groundwater or surface water quality; i) The approval is the minimum variance necessary to accomplish the desired purpose; and j) The proposed variance is based on consideration of the best available science as described in WAC 365-195-905; or where there is an absence of valid scientific information, the steps in RMC 4-9-25OF are followed, 3. The analysis of the proposal according to variance criteria is found in the body of the Staff Report. D. DECISION: The Administrative Variance for the 132" d Street Sewer Extension Project, File No. LUA14-000453, V-A, ERC, is approved and is subject to the following conditions: 1. The applicant shall comply with the mitigation measures for the Determination of Non -Significance — Mitigated, issued on May 5, 2014. 2. The City Risk Management division shall review the project and make a determination about risks, safety, and public welfare in consideration of the daylit portion of the sewer pipe within the easement granted to the city for utilities. 3. The applicant shall comply with the conditions of approval included in the Hydraulic Project Approval (HPA) which should provide directive on seasonal windows for construction work. DATE OF DECISION ON LAND USE ACTION: SIGNATURE: J C.E. "Chip" Vincent, Administrator Department of Community & Economic Development Date City of Renton Department of Community'& Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 18 of 19 TRANSMITTED this 5th day of May, 2014 to the Contact/Applicant/Owner: Contact: Rebecca Saur Stantec Consulting Services, Inc 11130 NE 33`d Pl, Suite 200 Bellevue, WA 98004 Applicant: John Hobson, Sewer Utilities Division City of Renton 1055 S Grady Way, 5`h Floor Renton, WA 98057 TRANSMITTED this this 5th day of May, 2014 to the Parties of Record: Larry Fisher WDFW Area Habitat Biologist 177512`h Ave NW Suite 201 Issaquah, WA 98027 Karen Walter Muckleshoot Indian Tribe Fisheries Habitat Program 39014 172°d Ave SE Auburn, WA 98092 TRANSMITTED this this 5' day of May, 2014 to the following: Chip Vincent, CED Administrator Neil Watts, Development Services Director Craig Burnell, Building Official Jennifer Henning, Planning Director Vanessa Dolbee, Current Planning Manager Fire Marshal Owner of Parcel 214480-0535 with utility easement: John Stewart 8223 S 132°d St Seattle, WA 98178 Owner of 132°d Street ROW City of Renton 1055 S Grady Way, 5`h Floor Attn: Wastewater Utility 1055 S Grady Way E. LAND USE ACTION APPEALS, REQUEST FOR RECONSIDERATION, & EXPIRATION: The Environmental Determination and the Administrative Variance Review decisions will become final if the decisions are not appealed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680). Environmental Determination Appeal: Appeals of the environmental determination must be filed in writing to the Hearing Examiner on or before 5:00 p.m. on May 23, 2014. Administrative Variance Approval Appeal: Appeals of the administrative site development plan review decision must be filed in writing to the Hearing Examiner on or before 5:00 p.m. on May 23, 2014. APPEALS: The above land use decisions will become final if not appealed in writing together with the required fee to: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. RMC 4-8- 110 governs appeals to the Hearing Examiner and additional information regarding the appeal process may be obtained from the City Clerk's Office, Renton City Hall - 7th Floor, (425) 430-6510. RECONSIDERATION: Within 14 days of the effective date of decision, any party may request that the decision be reopened by the approval body. The approval body may modify his decision if material evidence not readily discoverable prior to the original decision is found or if he finds there was misrepresentation of fact. After review of the reconsideration request, if the approval body finds sufficient evidence to amend the original decision, there will be no further extension of the appeal period. Any person wishing to take further action must file a formal appeal within the 14-day appeal time frame. City of Renton Department of Community & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VARIANCE LUA14-000453, V-A, ECF Report of May 5, 2014 Page 19 of 19 EXPIRATION: The administrative variance approval will become null and void if the applicant or owner of the subject property which a variance has been requested has failed to commence construction or otherwise implement effectively the variance granted within a period of two (2) years after such variance has been issued. A one (1) year extension may be requested pursuant to RMC 4-9-25013.18. THE APPEARANCE OF FAIRNESS DOCTRINE: provides that no ex parte (private one-on-one) communications may occur concerning the land use decision. The Doctrine applies not only to the initial decision, but to Appeals to the Hearing Examiner as well. All communications after the decision/approval date must be made in writing through the Hearing Examiner. All communications are public record and this permits all interested parties to know the contents of the communication and would allow them to openly rebut the evidence in writing. Any violation of this doctrine could result in the invalidation of the appeal by the Court. EXHIBIT 2 132" STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN PREPARED FOR: STANTEC CONSULTING SERVICES INC. ATTN: REBECCA SAUR 11130 NE 33RD PLACE, SUITE 200 BELLEVUE, WA 98004 PREPARED BY: GRETTE ASSOCIATESLLC .. -=-2•1-02••NORTH 30TH.STREET;•-SUITE.A :. ... - . __ . , �•,;; P.. -. TACOMA, WASHINGTON 98403 (253) 573-9300 FEBRUARY 4, 2014 CHAD WALLIN DATE BIOLOGIST A&Grette Associates« ENVIRONMENTAL CONSULTANTS TABLE OF CONTENTS 1 INTRODUCTION...................................................................................................... 1 2 PROJECT DESCRIPTION......................................................................................... 1 2.1 Current Use......................................................................................................... 1 2.2 Proposed Actions................................................................................................ 1 3 EXISTING CONDITIONS......................................................................................... 3 3.1 Stream Classification.......................................................................................... 3 3.2 Existing Buffer Conditions................................................................................. 3 3.3 Topography.........................................................................................................3 4 ANALYSIS OF ALTERNATIVES............................................................................ 4 4.1 Avoidance........................................................................................................... 5 4.2 Minimize............................................................................................................. 5 4.3 Restoration.......................................................................................................... 5 4.4 Adverse Impacts.................................................................................................. 5 4.5 Compensation..................................................................................................... 5 5 IMPACT EVALUATION.......................................................................................... 6 5.1 Affected Resources............................................................................................. 6 5.1.1 Existing Stream Buffer Functions.......................................................................... 6 5.1.2 Impact Determination............................................................................................ 6 6 MITIGATION PLAN................................................................................................. 7 6.1 Target Functions................................................................................................. 7 6.2 Goals and Objectives.......................................................................................... 7 6.3 c Mitigation-Design.::::..........:...:....::...:..:.:......:....::........................:....:....:........:..:. ,7 6.3.1 Grading Plan.......................................................................................................... 7 6.3.2 Planting Plan......................................................................................................... 8 6.3.3 Planting Schedule.................................................................................................. 8 6.3.4 Preparation and Installation of Planting Materials .............................................. 9 7 COMPLIANCE INSPECTION.................................................................................. 9 7.1 Compliance Inspection........................................................................................ 9 7.2 Compliance Inspection Report ............................................................................ 9 8 BIOLOGIST QUALIFICATIONS........................................................................... 10 ChadWallin.................................................................................................................. 10 9 REFERENCES......................................................................................................... 10 LIST OF FIGURES Figure 1. King County Parcel Map (iMAP 2014)......................................................................2 Figure 2. Topoography map (City of Renton 2014)..................................................................4 LIST OF TABLES Table 1. Proposed Critical Area Impact Summary by Type......................................................6 Table 2. Proposed Planting Schedule.........................................................................................8 LIST OF APPENDICES Appendix A. Project Site Plan Appendix B. Mitigation Plan 132"" Sewer Extension Project i February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 1 INTRODUCTION Grette AssociatesLLc is under contract to Stantec Consulting Services, Inc. (Stantec) to prepare a Supplemental Stream Study and Stream Buffer Mitigation Plan for the City of Renton Sanitary Sewer Extension project (Project) located at 8223 South 132nd Street in Renton, WA. The Project site is located within King County Tax Parcel 2144800535 and within Section 13, Township 23North, Range 4 East, W.M. (Figure 1). This Supplemental Stream Study and Stream Buffer Mitigation Plan (Plan) has been prepared in accordance with the requirements of the City of Renton Municipal Code (RMC) Chapter 4.3.050L — Critical Area Regulations. A Grette AssociatesLLc biologist visited the subject parcel on January 14, 2014 to perform an assessment of the stream and associated stream buffer within the Project area. Prior to the site visit, the ordinary high water mark (OHWM) determination was completed by the Project proponents. During the OHWM determination, the stream boundary was flagged and surveyed for use in this Plan. The OHWM is presented in all stream related figures to assess the extent of disturbance associated with this Project. 2 PROJECT DESCRIPTION 2.1 Current Use The subject parcel is currently undeveloped. With the exception of the southern portion, the .site,, is mostlya .grass .field. that appears to, .be_egularly,�r aintained, and was. likely.._,. _ _ previously used as a livestock pasture. The existing vegetation outside of the maintained area consists of a forested vegetation community that is dominated by Himalayan blackberry (Rubus discolor), red elderberry (Sambucus racemosa), salmonberry (Rubus spectabilis), red alder (Alnus rubra), and black cottonwood (Populus balsatniferia). Non- native, invasive species observed during the site assessment include Himalayan blackberry, English holly (Llex aquifolium), English ivy (Hedera helix), bamboo (Batnbusodae spp.), and magnolia (Magnolia spp.). These non-native, invasive species were located primarily along the western boundary of the subject parcel. 2.2 Proposed Actions The purpose of the proposed City Project is to connect several existing properties that are currently being served by onsite septic systems to the City of Renton's sewer system. The Project includes design of approximately 436 linear feet of new 8 inch PVC underground sewer main along South 132nd Street and approximately 338 linear feet of new 8 inch PVC underground sewer main between the proposed South 132nd Street alignment and the existing Earlington sanitary sewer main. The 338 linear feet of new sanitary sewer will extend through the subject parcel and will cross over an unnamed Class 4 stream in the southwest corner of the site (Appendix A). The length of the sanitary sewer line that will daylight across the Class 4 stream and associated stream buffer is approximately 58 linear feet (Appendix A). All remaining sanitary sewer line will be placed underground. 132"° Street Sewer Extension Project I Februmy 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC ' r ��'i3Crf-•fi.-�$ ft�aa. '` .;d �...�, i_a'�"�y� t- j'r '♦ jY� � � y i.d `yl - - �,� T1Pyi �' a �. o '�7 2 14�+ t +mod .. ✓ \ i ti 'er �i � .• f . g�.ldJ��.. �{.i' �'� -1'jc 4T �. Y� t �`t }i y�r G -s.. '� ,. p,r�yae�rf,•3.,''1 f _ 51 3*3�f.-_s3: ,. '.$3�:>J. _�_.,. _...-.�._. �� Fia _- _ _.-.? .yd,_:- -l',rf �5.-ti.�.!O.r• - .. �..� - - 1•�P fn ^� r li3 '•sv3 jY :. � � FrLd.f;. Re. i_: � y. , r . }-� .as. na � � a � - x� �333,' -fit � r • - m cT*" ` °' a ixa �, Si -`' r;,•.„ '�Xr. s #'•' ! is >, �2. " �a«,,�.. �. �, (l��'lJL1U a� �2rc 2 rl�� (--•_ ,ram" "A �, e u . 3'; :�<1 3 - 413t 1 f, 'zq2 y`.{rJ � - .t2t .1' .fiery �s��'�= ",� �s4 •Tt 3+�•1�fif� F.s•t y4 S5ri � fi • 'T r y f ��,y1 d 'i� i' S� !� � 41i �`it 'V _ c :,L R �, X•al �j^+ji�,- fy,J �5 i 9 l l..T Lij � * l � 3 7, • 3 S ,( f �� » Z� Yi 1 lk Iq �`.. �. i �_h\ le• !. -;' � _ c _ U'� . y ., rs} _ art t�.: ' �5 - - -' ff ire ,i�� = 3 _ Y�t/��, _� - �, .,�.• ��y;�b r.� �#.�i�.��1, 3 _ � �:.:... -- -- _. ).a. _.:'� r ?�_'4 r:`� ao _ � -��,� .c��,.�::—�S? ,lF. $iYit•�ih, :? j e 3 EXISTING CONDITIONS The onsite stream that is located in the southern portion of the subject parcel originates from two streams that likely collect surface and shallow subsurface water from the surrounding areas. These two streams join at the intersection of S. 132" d Street and 80th Ave. South and flow east towards the subject parcel. Upstream of the confluence, the two streams are conveyed through a series of culverts. However, at the confluence the streams begin to flow in a natural channel. Within this natural stream reach, the stream flows beneath several public roads prior to being fully conveyed through stormwater features and directed to the south shore of Lake Washington. Within the subject parcel, the bankfull width of the channel is approximately 36 inches. 3.1 Stream Classification Based on the City of Renton's stream inventory (City of Renton 2014) and previous correspondence with City staff (Gerald Wasser 2010), the stream located along the southern portion of the subject parcel is a Class 4 stream. Class 4 streams are non- salmonid bearing streams with intermittent flows during years of normal precipitation. Per RMC 4.3.050L.5a, Class 4 streams are subject to a 35 foot buffer width. Within the Project area, the existing stream bed is comprised of a sand and fine/medium gravel mixture and is confined within its banks by a constructed wall of automotive tires. Tire walls armor both sides of the stream channel within the Project area. There is no evidence that these tire walls extend upstream or downstream, and it appears that the tire walls are only -present -within the -southwestern -portion of the:subject parcel. 3.2 Existing Buffer Conditions The stream buffer within the Project area consists of native and non-native vegetation species that have developed several canopy layers. The dominant forested species within the stream buffer include red alder, black cottonwood, and red cedar (Thuja plicata). Beneath the forest vegetation is a scrub -shrub sub -canopy dominated by Himalayan blackberry, red elderberry, salmonberry, and magnolia. Groundcover vegetation within the stream buffer is sparse with an occasional sword fern (Polystichuln munitum). However, along the western parcel boundary, groundcover is more prominent and is dominated by English ivy and creeping buttercup (Ranunculus repens). 3.3 Topography The general topography within the subject parcel consists of a gradual south facing slope (approximately 14% slope) that extends to the approximate stream buffer boundary (Figure 2). From the stream buffer boundary to the left bank of the stream the topography increases to approximately 28% slope. The stream buffer topography associated with the right bank of the stream is approximately 58% slope. Similarly to the left bank, the area outside of the stream buffer is less steep, approximately 14% slope. According to the City of Renton's COR Maps (City of Renton 2014), both sides of the stream are mapped as regulated slopes (>25% and <40% slope). 132"° Street Sewer Extension Project 3 February 26, 2014 Supplemental Steam Study and Stream Buffer Mitigation Plan Grette Associates, LLC -_ c._�.w,;�:.':ca FYI. FJ : 4--^ �• Figure 2. Topoography map (City of Renton 2014). 4 ANALYSIS OF ALTERNATIVES The City of Renton, per RMC 4.8.120.D.19S, requires that any proposed project that contains a water body or associated buffer area evaluate alternative methods of developing the subject parcel. This section describes the efforts made by the project proponent to apply alternative methods to the proposed Project. An analysis of alternatives is a set of steps designed to prevent avoidable impacts to the environment and then rectify those impacts that cannot be avoided. The steps considered during the planning of this Project are described below. 132n' Street Sewer Extension Project 4 February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 4.1 Avoidance In the case of this project, avoidance is not feasible. In order to provide functioning City sanitary sewer service to existing properties that are currently being served by onsite septic systems, the proposed sanitary sewer extension will require connections between South 132na Street and the existing Earlington sanitary sewer line. No feasible alternatives exist to provide these connections without crossing the stream channel on the subject property. 4.2 Minimize The Proposed project has been designed to minimize impacts to the critical areas within the subject parcel. As currently designed, the proposed Project would require a temporary stream buffer disturbance, approximately 902 square feet in size, that would be associated with the trenching and placement of the new 8 inch PVC sanitary sewer main. Additionally, the pipe is proposed to cross the stream channel as close to perpendicular as is practicable and will be elevated approximately 15 feet above the wetted channel to avoid disturbance to the stream channel. No disturbance to the stream bed or bank is proposed during this Project. Furthermore, the current design of the Project does not propose removal of any existing mature trees, and Best Management Practices would be employed to prevent disturbances to areas outside of the construction area. 4.3 Restoration Restoration of temporarily disturbed stream buffer areas will occur upon completion of the_proposed,Proj.ect:.(see Section,7)....The-.proposed;Project will.reestablish preexisting topography and replant the temporarily disturbed stream buffer area with native vegetation. All non-native species removed during the placement of the sanitary sewer line will be disposed of at an approved offsite location, and will be replaced with native species. 4.4 Adverse Impacts Adverse impacts to the stream or stream buffer will not likely occur- as a result of the proposed Project. As discussed below in Section 7.2.1, the Project will employ all necessary Best Management Practices (BMPs) to minimize erosion of disturbed surface soils and to prevent sediment -laden runoff from entering the Class 4 stream. Furthermore, all disturbed areas will be replanted with native vegetation. 4.5 Compensation With the exception of the portion of the sewer pipe that will daylight, all disturbances to the stream buffer will be temporary. The areas where the pipe will extend from the soil surface are approximately four square feet in total size. This extremely small footprint compared to the size of the stream buffer within the project area is anticipated to be insignificant based on function. Therefore, no compensation is proposed for this Project. 132"" Street Sewer Extension Project S February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 5 IMPACT EVALUATION The proposed Project will result in unavoidable temporary impacts to the stream buffer within the subject parcel. These impacts are described in detail below. The impacts addressed in this Plan are specific to the Class 4 stream and associated buffer. 5.1 Affected Resources As discussed above, the proposed Project will temporarily disturb approximately 902 square feet of stream buffer. However, the existing stream buffer within the Project area does not provide quality buffer function due to the amount of invasive vegetation and previous alterations. Although temporary, the impacts associated with the Project would require removal of vegetation and soil disturbance within the construction area. No mature trees will be removed during this Project. No impacts to the stream bed or bank are proposed. 5.1.1 Existing Stream Buffer Functions The stream buffer within the Project area consists of native and non-native vegetation species that have developed a stratified forest canopy. The upper forest canopy consists of mature deciduous and evergreen species that provide shading and nutrient loads to the stream and stream buffer. Beneath the upper forest canopy, the sub -canopy consists of scrub -shrub species that likely provide some shading and nutrient load as well. Due to the topography and the existing armoring of the stream bank, the buffer vegetation likely does not provide significant hydrologic function during seasonally heavy rain events. o.Dur,.ing ,heay_y rains, t11e;,understor_y. puffer vegetation..ltkely. does not.: reduce the^surge_� effect associated with stormwater runoff in highly developed areas. The existing stream buffer likely provides moderate wildlife habitat function due to the presence of the stream and forested area. Wildlife functions within the stream buffer include small mammal foraging and cover, passerine and raptor foraging, and amphibian foraging, breeding, and refuge. 5.1.2 Impact Determination The proposed impacts associated with the construction of the sanitary sewer line will be temporary and will not result in a net -loss of stream buffer function. Furthermore, the current design entails the least amount of impact to critical areas within the subject parcel. With the exception of the daylight portion of the sanitary sewer line, no permanent structure will be placed within the stream buffer area. The portion of the sanitary sewer line that will daylight and span the stream will not adversely affect stream or stream buffer function, as it will be elevated off of the ground and will not impede existing stream or stream buffer processes. Affected critical areas by type are summarized below in Table 1. Table 1. Proposed Critical Area Impact Summary by Type. nc �hialIi Ct AilDllrBtioII�_I ' Stream Buffer Sewer Line Installation 902 square feet Temporary 132"d Street Sewer Extension Project 6 February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 6 MITIGATION PLAN Mitigation will occur within the subject parcel (Appendix 13, Sheet 1). Actions proposed include restoring approximately 902 square feet of stream buffer and employing 13MPs during construction. 6.1 Target Functions Per RMC 4.3.050.3c, alterations to stream areas and associated buffers shall achieve equivalent or greater biological and hydrological functions. The restoration of the temporarily disturbed stream buffer area will provide greater functional value to what currently exists in the buffer area. Currently, the buffer that will be temporarily disturbed provides little buffer function due to existing non-native vegetation and very little ground cover. Restoring the temporarily disturbed buffer area will provide greater vegetation diversity and hydrological function through the planting of native shrubs and seeding of native grasses. Establishing denser native groundcover within the disturbed area will reduce surface stormwater runoff and filter out sediments and toxins from stormwater. Currently, the groundcover within the forested buffer is mostly bare and likely does not filter out significant amounts of sediment and pollutants from surface water. 6.2 Goals and Objectives The overall goal of the mitigation plan is to restore temporarily disturbed vegetation within the stream buffer. With the exception of where the sewer line extends out of the ground, the exposed portion of the sanitary sewer line that will span the stream will not have contact with the ,ground and thus. will not impede natural stream or stream buffer processes. Surface contact with the sewer line will be less than four square feet in size. More specific mitigation goals include: 1. Ensure no net loss of stream buffer function; 2. Provide enhanced native plant diversity; 3. Provide enhanced water quality function. Specific functional objectives of the Plan include: 1. Restore approximately 902 square feet of disturbed stream buffer; 2. Seed all disturbed soils within the construction area. 6.3 Mitigation Design The intent of the mitigation actions at the subject parcel is to offset the temporary stream buffer disturbance associated with the Project and to ensure no net loss of stream buffer function. 6.3.1 Grading Plan Initially, the extent of the proposed work area will be clearly marked and silt fencing will be installed along the outer work limits. All vegetation within the areas proposed for excavation will be mechanically removed and disposed of at an approved upland location. Excavation, grading, and clearing limits within the stream buffer will be limited to 7.5 feet on either side of the centerline of the 8 inch PVC sanitary sewer line. 132"° Street Sewer Extension Project 7 February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC During all construction activities, Best Management Practices (BMPs) will be employed to minimize erosion of disturbed surface soils and to prevent sediment -laden runoff from leaving the project site. BMPs to be employed during construction may include (but are not limited to) silt fencing and/or straw bales around the perimeter of the clearing and grading areas, mulching areas immediately after completion of grading, and installation of plant material as soon as practical after grading. Once the vegetation is removed, excavation and grading will be conducted using excavators, dump trucks, and other like equipment as needed to complete the work. All excavated soils within the stream buffer will be cast into dump trucks for temporary storage and reused as back fill material in the stream buffer area. At no point will equipment extend outside of the 15 foot wide public sanitary sewer easement. Plantings within the disturbed stream buffer area will be immediately installed once the final grade is achieved. 6.3.2 Planting Plan Plant installation will be performed in accordance with the specifications outlined in this Plan. Any alterations to the planting plan due to site conditions will require approval from the City of Renton prior to installation. The project proponent is only proposing planting within the designated restoration area (Appendix B, Sheet 2). The intent of restoring stream buffer vegetation with native grass and shrub species is to provide greater plant diversity and water quality and hydrological functions within the area proposed for disturbance. Shrub species will be planted on 4 to 5 foot centers and will include - Scowler �wi°lfiow (Saliz`scouleriana)�""red'- elderberry- red=osier�dogwoo& (Cornus stolonifera), and cascara (Rhamnus purshiana). A dense planting schedule is proposed based on the non-native invasive species that are present outside of the restoration area. Over planting will provide a better opportunity for native species to compete with non-native, invasive species. 6.3.3 Planting Schedule The proposed planting schedule for the restoration area is presented below in Table 2. The specific quantities of each species will be calculated during final design of the mitigation action. In order to reduce mortality, a late fall plant installation schedule (October — November) is preferred. Plants should not be installed during or immediately before freezing weather. All remaining bare soils within the restoration area will be seeded within an approved native seed mix consisting of species such as Idaho fescue (Festuca idahoensis ssp. roemeri), blue wildrye (Elymus glaucus), spike bentgrass (Agrostis exerata), and red fescue (Festuca rubra), or like native species. Table 2. Proposed Planting Schedule ``�Coinmon*Nave_ 5 _ecr_e_s _Name' _ , ,-y 4 uanti_ �Size?r`: ' $�_ac_u_ip tOC� LS x5_._ _� _ Wit: ,. .. _...._. ' .u.._._: *�i..l'-Q_ �::. 4..,� 7..a..� .T i;:.. _ �._._.._ t. Stream Buffer Enhancement Scouler's willow Salix scouleriana 20 2 gallon 4' to 5' Red elderberry Sambucus racemosa 6 2 gallon 4' to 6' Vine maple Acer circinatum 20 2 gallon 4' to 5' Cascara Rhamnus urshiana 6 2 gallon 4' to 6' 1 Plant quantities will be verified following final design. 132" d Street Sewer Extension Project 8 February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC All plant materials to be used on the site will be native to Western Washington and will consist of nursery grown stock from a reputable, local dealer. Only native species specified in the approved plant schedule are to be used; no hybrids will be allowed. Plant substitutions must be approved by the City of Renton if specified species are not commercially available. Plant material provided will be typical of their species or variety; they will exhibit normal, densely -developed branches and vigorous, fibrous root systems. Plants will be sound, healthy, vigorous plants free from defects and all forms of infestation. 6.3.4 Preparation and Installation of Planting Materials The landscape contractor shall verify the location of all elements of the landscape plan prior to installation. The contractor may adjust the locations of landscape elements during the installation period as necessary. Circular plant pits with vertical sides will be excavated for all container stock. The pits should be at least twice the diameter of the root system, and the depth of the pit should accommodate the entire root system. The bottom of each pit will be scarified to a depth of 4 inches, and the pit should be thoroughly wetted prior to plant insertion to prevent capillary stress. The planting hole shall be amended with a mixture of topsoil and organic material if necessary to provide appropriate rooting media. Broken roots should be pruned with a sharp instrument and rootballs should be thoroughly soaked prior to installation. Set plant material upright in the planting pit to proper grade and alignment. Water plants thoroughly midway through backfilling and again upon completion of backfilling. No filling should occur around stems. Do not use frozen or muddy mixtures for backfilling. Form a ring of soil around the edge of each planting pit to retain water, and install a 2-1/2 inch layer of mulch around the base of each container plant. 7 COMPLIANCE INSPECTION 7.1 Compliance Inspection A compliance inspection will consist of evaluating the plantings immediately after construction to confirm the Plan was followed and the plants were installed appropriately. A walk-through survey will be conducted to verify that installation conforms to the approved Plan. Photographs will be taken to document the completion of the restoration actions. 7.2 Compliance Inspection Report Within 60 days of completion of stream buffer restoration, the Project proponents will prepare and submit a compliance inspection report to the City of Renton. This report will document the implementation of the restoration actions and describe any deviations from the original Plan. The report will also describe any potential problems identified during installation and any recommended remedies to be proposed to the City. Representative photographs will be taken to further document the implementation of this Plan. 132"d Street Sewer Extension Project 9 February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 8 BIOLOGIST QUALIFICATIONS Chad Wallin Chad Wallin is a Biologist with professional experience and training in wetland science, wetland ecology, ecological restoration, critical area monitoring, and mitigation planning. His work experience in the Pacific Northwest includes but is not limited to wetland and stream delineations, habitat assessments, marine surveys, wetland and stream restoration, wetland and stream mitigation plans, stream surveys, and related environment studies and surveys. Chad has earned a Bachelor's of Arts degree in Environmental Studies from the University of Washington along with certificates in Wetland Science and Management and Ecology Restoration through the University of Washington. In addition, Chad has completed training for Ecology's Wetland Rating System, Ordinary High Water Mark, and Calculating Compensatory Mitigation in Wetlands. For a list of representative projects, please contact him at Grette Associates. 9 REFERENCES iMAP. 2014. King County iMAP: Interactive Mapping Tool (online GIS). King County Tax Parcel Map [map online]. Accessed [27 January 20141. URL: http://www.kin2county.L,oN,/operations/G]S/Maps/iMAP.aspx. --,,Cit-rLof-Renton:.---201'4.--City-of-Renton COR Maps -(online GIS):--;Critical Areas--Map- - Accessed [27 Janurary 2014]. URL:littp://rentonv,a.go\,/L5ovei-mnent/default .aspx?id=29886. Interactive Layers = "Streams and Slopes". Gerald Wasser. 2010. Re: John Stewart Sanitary Sewer Extension, PRE10-034. Message to markr0concepteng.or. O1 November 2010. 132"d Street Sewer Extension Project 10 February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 0A 3 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN APPENDIX A: PROJECT SITE PLAN 132"° Street Sewer Extension Project A February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC 6' WOOD CONC CH.Aii•i Llh.!- 1 SAIdIIARY I S- .AVH T I i' jCur,. �- I I STIREAM. BUFFER. :- i 2+00 3+00 SIDE SEWER CONNECTION (TYP) PER STD. PLAN 06.1 TAX PARCEL 214480-0535 IC A. svl' _T-4 TE 31qC)CK (T:'P)- o) a = ' � I DAYLIGHT PORTION OF THE III. SANITARY SEWER LINE STREAM BUF`ER RESTORATION AREA APPROX. 402 SOFT \ I o' CHAIN LINK — FENCE (T'(P) SHEET 1 OF 1 E � � 45 ORDINARY HIGH WATER MARK ` PFP, CONCEPT ENGINEERING, \ !NC.'S 2010 PLANS \ � I `� J\ 18" STEEL SANITARY SEWER LINE CASING i 11 '1 Ex ssMN I ' RMn216.91 I 04 IE SEe272--i�—_ _..—_--___. �. IE W-212.24 i •- I i PEARS -TO-- 8E 12') ^ ' I CITY OF RENTON &Grette Associates« ENVIRONIGE Ni At CC:!$DLfAI+iS APPENDIX A S. 132ND STREET SANITARY SEWER LINE ^rIS l�YG PROJECT SITE PLAN EXTENSION PROJECT _001 SDE ADDRESS:: DRAWING SCALE' STANIEC BT: CW TE 14 8223 S. 132NO STREET, REMW, WA 1/2' = 1'D' FHEMW UV.5Y TED 14 EXHIBIT 3 aL APR 0 4 2014 ENTON ,i&Grette Associ.ates[LC ENVIRONMENTAL CONSULTANTS ORDINARY HIGH WATER MARK—\j PER CONCEPT ENGINEERING, IN"-.'S 2010 PLANS STREAM BUFFER RESTORATION AREA APPROX. .902 SOFT 6' CHAIN! LINK" FENCE (TYP) TAX PARCEL 214480-0535 DAYLIGHT PORTION OF THT SAN�TAR%v SEWER LINE ,8" STEEL SANITARY SEWER LINE CASING SHEET CITY OF RENTON <pGrette AssociateSLLC ENVIRONMENTAl CONSLMA-,S APPENDIX B S. 132ND STREET SANITARY SEWER LINE OF MITIGATION PLAN EXTENSION PROJECT MEW: 2 SrTE ADDIR JIM"141 scjL. CLw BMW xx ADD;M 3/4' = 1-0- FHLUQD Ur.CW PAMMM/0 EXHIBIT 3 IP 132N�D STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN APPENDIX B: MITIGATION PLAN 132"° Street Sewer Extension Project B February 26, 2014 Supplemental Stream Study and Stream Buffer Mitigation Plan Grette Associates, LLC NORTH RESTORATION ZONE PLANT LIST FOR RESTORATION AREAS mwx SCIENMFM NAME MUMN"VE MDICATM Sim 0UANTrrY ZONE REMARKS "u": FAC 2g~— 20 NM DMDE OTY EOUA Y FACU 2 gaW �ff 6 �OTY� *S DE OEOUy O S.W FAG 2 9� M NOS DMDE OTY EWALLY S—.— red eUerOeM 'ACU 2 g.bn 6 NG DMDE OTY EWALLY NOTE: AA SOUTH RESTORATION ZONE 4. "o SHEET <.pGrette Associates - CITY OF RENTON ENVIRO-AFNI.kt CC S-JtiAN:S 2 APPENDIX B S. 132ND STREET SANITARY SEWER LINE OF STREAM BUFFER PLANTING PLAN EXTENSION PROJECT CUENT: 2 SK ADDFAS& JDRNIIND WAIL STAKU 82n S. 13M Sntm. ROMOK *A Nm FHECKEV Ur.W ZONING MAP BOOK PLANNING -TECHNICAL SERVICES PRINTED DATE: 10/02/2013 This document is a graphic representation, not guaranteed to survey accuracy, and is based on the best information available as of the date shown. This map is intended for City display Durposes only. Community & Economic Development C E •Chp V,---t ad i.— ab.o�. 4e fi 1 1 1 G2E24 T23N R4E E 1/2 r r r o 420 l 1 1 1 1 eao F2E r G Feet 1:9,490 13 T23N R4E E 1/2 Page 30 of 80 Limits Q (COR) Commercial/Office/Residential Q (R-4) Residential 4du/ac rCity RENTON Q (CV) Center Village Q (R-8) Residential 8du/ac [J Potential Annexation Area Q (IH) Industrial Heavy Q (RC) Resource conservation Zoning Designation Q (IL) Industrial Light Q (RM-F) Residential Multi -Family Q (CA) Commercial Arterial Q (IM) Industrial Medium Q (RM-T) Resi. Mutti-Family Traditional Q (CD) Center Downbwn Q (R-1) Residential 1du/ac Q (RM-U) Resi. Multi -Family Urban Center Q (CN) Commercial Neighborhood Q (R-10) Residential 10du/ac Q (RMH) Residential Manufactured Homes Q (CO) Commercial Office Q (R-14) Residential 14du/ac Q (UC-NI) Urban Center North 1 Q (UC-N2) Urban Center North 2 ue".1tr7"Ar ION-14 . . . . . . 10 s 32ncas st .!!F S 1;32n St �6— ,32End A 6 'et, �PAt—' q- U5, 1� 4 j 1, TZ AE ,T4411 1,� 40 Z. 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" _.I._..—L._.:_I _----...I ]+Bo ......... _....., PERMIT4/02/2014 SCALE 20 •J•e-12(1J ( FEET) Wp3 - 2S FT �"�"• �,[� CITY OF SOUTH 132NO STREET —„ RENTON SEWEREXTENSION PROJECT �� °ANY PmrvrmP/a,ndm9/v„elm won. B.PI. SEWER PLAN AND PROFILE FCEIVED EXHIBIT 7 PLANNING DIVIS101 ENVIRONMENTAL CHECKLIST City of Renton Planning Division / 1055 South Grady Way, Renton, WA 98057 ` 1 E Phone: 425-430-7200 Fax: 425-430-7231 iQ PURPOSE OF CHECKLIST1-1 :€ , The State Environmental Policy Act (SEPA), Chapter 43.21C RCW, requires all governmenfal'agefflcies to consider the environmental impacts of a proposal before making decisions. An Environmental Impact Statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. INSTRUCTIONS FOR APPLICANTS: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, -_- �_,; E.you; hould be,able to;answer,the questions from your:own _observations_ or project:plans= with out�the.-need . to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. USE OF CHECKLIST FOR NONPROJECT PROPOSALS: Complete this checklist for nonproject proposals, even though questions may be answered "does not apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). For nonproject actions (actions involving decisions on policies, plans and programs), the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer," and "affected geographic area," respectively. V:12002\active\0015\00022.000 132nd St Sewer\Permit\SEPA_132nd_20140319.doc - 1 - 02103 A. BACKGROUND 1. Name of proposed project, if applicable: SOUTH 132ND STREET SEWER EXTENSION 2. Name of applicant: CITY OF RENTON 3. Address and phone number of applicant and contact person: 1055 S GRADY WAY RENTON, WASHINGTON 98058 425-430-7200 KRIS SORENSEN, ASSOCIATE PLANNER 4. Date checklist prepared: MARCH 19, 2014 5. Agency requesting checklist: ECOLOGY, DEPT. OF KING COUNTY DEPARTMENT OF PERMITTING & ENVIRONMENTAL REVIEW ENVIRONMENTAL REVIEW SEPA OFFICIAL Po 77 Po Bo Box 47703 sTEVE BOTTHEIM IA A wA 98504-7703 LAND USE SERVICES DIVISION 900 OAKESDALE AVE SW (36M) 22 FAx (360) A07 6904 RENTON. wA 98055-1219 SEPAUNIT(U�ECY.WA.GOV (206 296=7144 `-------_.._.._..-.-.-FAX (206) 296-7051 STEVE.BOT TiEIM(U7KINGCOUNTY.GOV WASHINGTON STA I E DEPARTMENT OF FISH & WILDLIFE CITY OF RENTON Po Box 43200 OLYMPIA WA 98504-3155 MR. WATT S. 10555 S GRADY WAY (360) 902-2578 FAX (360) 902-2946 (425)4 0- 218 (425) 7 SEPADESK(Q)DFW.WA.GOV _ 25) FAx (425) 277-4455 7- NWATTS(CDRENTONWA. GOV WASHINGTON STATE DEPARTMENT OF HEALTH KELLY COOPER PO BOX 47820 CITY OF RENTON OLYMPIA wA 98504-7820 MR. MARK P 1055 S. GRADYAY DY WAY (360) 236-3011 RENTON, 8057 FAX (360) 664-8150 (425)430-70DO KELLY. COOPER(? DOH. WA. GO V MPETERSON (G)RENTONWA. GOV WASHINGTON STATE DEPARTMENT OF NATURAL KING COUNTY RESOURCES PLANNING & ASSET MANAGEMIENT SEPA OFFICIAL 1111 WASHINGTON STREET SOUTHEAST HIRSCHEN, UT -RC CHAIR PO BOX 47015 KING S KING STREET CENTER S. N ST RM 512 OLYMPIA WA 98504-7015 KS 0512 (360) 902-2117 SEATTLE,c-NR-0512 98104 FAx (360) 902-1789 206-205 08 206-205-0817 SEPACENTER(a-)DNR. WA.GOV STEVE.HIRSCHEY(a)KING000NTY.GOV V.'MD2\active%DD1SDD022.DOD 132nd St Sewer,PermiftSEPA 132nd 20140319.doc- 2 - RENTON SCHOOL DISTRICT MAINTENANCE AND OPERATIONS 7812 s 124TH SEATTLE, wA 98178 425-204-4400 JOE. LAMBORN a)RENTON SCHOOLS.US KING COUNTY FACILITIES MANAGEMENT DIVISION REAL ESTATE SERVICES KATHY BROWN 500 4TH AVE. SUITE 800 SEATTLE, wA 98104 KATHY. BROWN(ia KINGCOUNTY.GOV LAURA MURPHY TRIBAL ARCHEOLOGIST MUCKLESHOOT INDIAN TRIBE PRESERVATION PROGRAM 39015172ND AVE SE AUBURN, wA 98092 253-876-3272 LAURA. M URPHY(a)MUCKLESHOOT. NSN. US KAREN WALTER WATERSHEDS AND LAND USE TEAM LEADER MUCKLESHOOT INDIAN TRIBE FISHERIES DIVISION 39015172ND AVE SE MUCKLESHOOT TRIBE AUBURN, wA 98092 39015 —172ND AVE SE 253-876-3116 AUBURN, wA 98092 KAREN.WALTER(a)MUCKLESHOOT.NSN.US (253) 931-8570 VI RGINIA. CROSS(CDMUCKLESHOOT. NSN. US 6. Proposed timing or schedule (including phasing, if applicable): SPRING/SUMMER 2014 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. THE CITY OF RENTON DOES NOT HAVE ANY SPECIFIC PLANS TO EXPAND ON THIS SEWER EXTENSION PROJECT. THERE ARE PARCELS IN THE VICINITY OF THIS PROJECT THAT MAY WISH TO CONNECT TO THE NEW SEWER MAIN IN THE FUTURE. List-any._environmental informlatio.n-,.you,..knov✓..about.that, has-been prepared,.�or will -be -prepared; directly related to this proposal. GREiTE ASSOCIATES HAS PREPARED A STREAM STUDY AND STREAM BUFFER MITIGATION PLAN, DATED FEBRUARY 4, 2014. 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. NONE 10. List any governmental approvals or permits that will be needed for your proposal, if known. CITY OF RENTON RIGHT OF WAY PERMIT CITY OF RENTON GRADING PERMIT CITY OF RENTON VARIANCE CITY OF RENTON ENVIRONMENTAL REVIEW 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. CONSTRUCTION OF APPROXIMATELY 775 LINEAL FEET OF 8-INCH SEWER MAIN AND ASSOCIATED APPURTENANCES. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range if known. If a proposal would occur over a range of area, provide the range or boundaries V:�2D02\adrve\D015%00022.00D 132nd St Sewer\PenTASEPA-132nd-20140319.dor 2 - of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. THE PROPOSED SEWER MAIN EXTENSION IS LOCATED ALONG SOUTH 132ND STREET, WEST OF RENTON AVE SOUTH AND EAST OF SOUTH LANGSTON ROAD, IN THE NORTHEAST QUARTER OF SECTION 1330WNSHIP 23 RANGE 04 EAST, IN RENTON, WASHINGTON. B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (circle one); flat, ROLLING, hilly, steep slopes, mountainous, other b. What is the steepest slope on the site (approximate percent slope?) THERE IS AN AREA ALONG THE EAST STREAM BANK THAT IS APPROXIMATELY 60 PERCENT SLOPE, LOCATED AT THE SOUTH PORTION OF THE PROPOSED PROJECT SITE, C. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. THE SITE GENERALLY CONTAINS ALDERWOOD GRAVELLY SANDY LOAM & KITSAP SILT LOAM OVERLAYING WEATHERED AND UNWEATHERED BEDROCK. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, RES e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. EXCAVATED NATIVE MATERIAL WILL BE USED AS BACKFILL WHEN POSSIBLE. IMPORTED AND APPROVED CRUSHED GRAVEL OR FOUNDATION ROCK MAY BE UTILIZED WHEN NECESSARY TO SUPPORT NEW FACILITY STRUCTURES. ALL EXCAVATED MATERIALS NOT UTILIZED AS BACKFILL, AS WELL AS DISPLACED MATERIALS RESULTING FROM TRENCHING ACTIVITIES, WILL BE EXPORTED TO AN APPROVED DISPOSAL SITE PROVIDED BY THE CONTRACTOR. NO CHANGE OF ELEVATION OR CONTOUR IS PLANNED. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. THE POTENTIAL EXISTS FOR THE MIGRATION OF SOILS AS A RESULT OF TRENCHING ACTIVITIES, CLEARING, AND/OR OTHER RELATED CONSTRUCTION ACTIVITIES. ALL EXPOSED SOIL SURFACES WILL BE SUBJECT TO EROSIVE FORCES DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS HAVE BEEN ESTABLISHED. TESC REQUIREMENTS WILL BE DETAILED IN THE CIVIL CONSTRUCTION PLANS FOR THIS PROPOSAL BASED ON GEOTECHNICAL RECOMMENDATIONS AND CITY OF RENTON REQUIREMENTS. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? VA\2002\active\001510D022ODD 132nd St Sewer\r ennit\SEPA 132nd 2Di40319.doc- 2 - CONSTRUCTION OF THE PROPOSED SEWER PIPE WILL NOT ADD ADDITIONAL IMPERVIOUS SURFACE. TWO CONCRETE BLOCKS WILL BE INSTALLED TO SUPPORT THE AERIAL CASING AND PIPE CROSSING OF THE ONSITE STREAM, RESULTING IN APPROXIMATELY 12 SQUARE FEET OF NEW IMPERVIOUS SURFACE. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: TEMPORARY EROSION AND SEDIMENTATION CONTROL REQUIREMENTS WILL BE DETAILED ON THE CONSTRUCTION PLANS FOR THIS PROJECT TO INCLUDE THE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO A MINIMUM DURING CONSTRUCTION. IMMEDIATE BACKFILL OF TRENCHES, ALONG WITH TIMELY RESTORATION, WILL FURTHER REDUCE EROSION POTENTIAL. 2. AIR a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. DUST AND ENGINE EMISSIONS FROM CONSTRUCTION EQUIPMENT WILL BE PRESENT DURING CONSTRUCTION. b. Are there any off -site sources of emission or odor that may affect your proposal? If so, generally describe. NO C. Proposed measures to reduce or control emissions or other impacts to air, if any: STANDARD_�EIJLSSION_GQNTROL..DEVICES WILL.. BE -UTILIZED BY. CONSTRUCTION :EQUIP,MENT: AS• ;., NEEDED, DUST CONTROL MEASURES WILL BE IMPLEMENTED TO LIMIT DUST DURING CONSTRUCTION. , , - 3. WATER a. Surface Water: 1) Is there any surface water body on or in the immediate vicinity of the site (including year- round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. YES, THERE IS A CLASS 4 UN -NAMED STREAM ALONG THE SOUTHERN PORTION OF THE PROJECT SITE. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. YES, THE PROPOSED SEWER MAIN WILL CROSS THE STREAM AT THE SOUTH WEST CORNER OF THE PROJECT SITE. THE 8-INCH SEWER MAIN WILL CROSS APPROXIMATELY 8 FEET ABOVE THE CREEK AND WILL BE CONTAINED WITHIN AN 18-INCH STEEL CASING. THE SEWER MAIN AND CASING WILL BE SUPPORTED ON EITHER SIDE OF THE STREAM BY 4-FOOT WIDE BY 1.5-FOOT DEEP BY 2-FOOT TALL CONCRETE BLOCKS. THE CONCRETE BLOCK ON THE EAST SIDE OF THE STREAM WILL BE LOCATED WITHIN THE 35-FOOT STREAM BUFFER. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. V:12DD2\actve\0015100022ODD 132nd St Sewer Pertnit\SEPA-132nd-20140319.doc- 3 - . NONE 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. M 5) Does the proposal lie within a 100-year flood plain? If so, note location on the site plan. No 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No b. Ground Water 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. SHALLOW GROUNDWATER MAY BE WITHDRAWN AS NECESSARY TO DEWATER THE GROUND WHERE TRENCHING OCCURS AT OR BELOW THE WATER TABLE. ANY WITHDRAWN WATER (UNKNOWN QUANTITY) WILL BE ROUTED THROUGH A SEDIMENTATION/DEWATERING FACILITY TO REMOVE EXCESS SEDIMENT AND THEN WOULD LEAVE THE SITE VIA THE EXISTING NATURAL DRAINAGE COURSE OR THE EXISTING STORM DRAINAGE SYSTEM. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following - - y" ' `"chemicals::.; agricultural; etc:): `Describe the general -size of the system, -the number ofsuch systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. NONE C. Water Runoff (including storm water): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters,. If so, describe. RUNOFF CONSISTING OF STORM WATER AND TEMPORARY DISCHARGE FROM DEWATERING ACTIVITIES RESULTING FROM THE CONSTRUCTION OF THIS PROJECT WILL NOT PERMANENTLY CHANGE THE HYDRAULIC CHARACTERISTICS OF THE PROPOSAL SITE. RUNOFF QUANTITY AND QUALITY CONTROL MEASURES WILL BE IMPLEMENTED DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS HAVE BEEN ESTABLISHED TO REDUCE AND CONTROL RUNOFF WATER IMPACTS. 2) Could waste material enter ground or surface waters? If so, generally describe. NO d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: V:12D02\a-the\D015\0DD22.000 132nd St Sewer\PermnSEPA 132nd 20140319.dor 4 - PROPOSED MEASURES INCLUDE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO A MINIMUM DURING CONSTRUCTION. 4. PLANTS a. Check or circle types of vegetation found on the site: X deciduous tree: alder, maple, aspen, other X evergreen tree: fir, cedar, pine, other X shrubs X grass pasture crop or grain X wet -soil plants: cattail, buttercup, builrush, skunk cabbage, other water plants: water lily, eel grass, milfoil, other other types of vegetation b. What kind and amount of vegetation will be removed or altered? THE PROJECT SITE IS GENERALLY GRASSY, WITH INCREASED VEGETATION CLOSER TO THE STREAM, WHICH CONSISTS OF BLACKBERRY, ELDERBERRY, SALMONBERRY, IVY, CREEPING BUTTERCUP, AND MAGNOLIA. CONSTRUCTION OF THE SEWER PIPE WILL REQUIRE THE REMOVAL OF SOME GRASS, AND UNDERBRUSH SPECIES. C. List threatened or endangered species known to be on or near the site. NONE KNOWN d. Proposed landscaping, use of native plants, or other measures to preserve or enhance on the.site, if -any:-,: A PLANTING RESTORATION PLAN WILL BE PREPARED FOR THIS PROPOSAL. PRIOR TO CONSTRUCTION, CLEARING AND GRADING LIMITS WILL BE DELINEATED ON PLANS AND ONSITE TO LIMIT VEGETATION REMOVAL AND/OR DISTURBANCE. TREE PROTECTION FOR AFFECTED TREES WILL BE SHOWN ON THE PROJECT PLANS. 5. ANIMALS a. Circle any birds and animals, which have been observed on or near the site or are known to be on or near the site: Birds: hawk, heron, eagle, on birds, other Mammals: deer, bear, elk, beaver, other Fish: bass, salmon, trout, herring, shellfish, other b. List any threatened or endangered species known to be on or near the site. NONE KNOWN C. Is the site part of a migration route? If so, explain UNKNOWN d. Proposed measures to preserve or enhance wildlife, if any: VA12002\active D01510D0220D0 132nd St Sewer\PsnnWEPA_132nd_20140319.dor 5 - DOES NOT APPLY 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. NONE b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. NO C. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: NONE 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. THERE IS A POTENTIAL RISK FROM THE HAZARDS ASSOCIATED WITH MACHINERY OPERATION AND GENERAL CONSTRUCTION` �PRACTICES-,-'SPILLS dF MACHINE FLUIDS, :RISK OF FIRE AND -EXPLOSION AND OTHER SIMILAR, NORMAL, CONSTRUCTION HAZARDS EXIST. 1) Describe special emergency services that might be required. NONE ARE ANTICIPATED. IN THE EVENT OF AN EMERGENCY, LOCAL FIRE, AID OR RESCUE SERVICES AND PERSONNEL MAY BE REQUIRED. 2) Proposed measures to reduce or control environmental health hazards, if any: TRENCH BOXES, BRACING, SUMP PUMPS AND OTHER ASSOCIATED CONSTRUCTION SAFETY EQUIPMENT AND PROCEDURES WILL BE UTILIZED DURING CONSTRUCTION TO REDUCE THE POTENTIAL FOR PERSONAL INJURY. SOUND ENGINEERING AND CONSTRUCTION TECHNIQUES WILL ENSURE THAT THE .SEWER MAIN AND ASSOCIATED APPURTENANCES ARE INSTALLED PROPERLY DURING CONSTRUCTION, USE OF CONTAINMENT MEASURES AND/OR MONITORING OF MOVEMENT OUTSIDE OF BUFFERS WILL BE REQUIRED BY THE CONTRACTOR DURING REPAIR OR MAINTENANCE OF CONSTRUCTION EQUIPMENT. b: Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? NONE V12002\ac;five10D15=022.= 132nd St Sewer\PertniflSEPA 132nd 20140319.d=- 6 - 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. SHORTTERM CONSTRUCTION EQUIPMENT WOULD BE OPERATED DURING NORMAL WORKING HOURS DURING THE _ CONSTRUCTION PHASE OF THIS PROPOSAL, UNLESS APPROVED OTHERWISE BY PERMITTING AGENCIES. LONG TERM THERE WILL BE NO LONG-TERM NOISE IMPACTS RESULTING FROM THIS PROJECT. 3) Proposed measures to reduce or control noise impacts, if any: CONSTRUCTION SCHEDULES WILL BE LIMITED TO NORMAL WORKING HOURS TO REDUCE NOISE IMPACTS TO SURROUNDING RESIDENTIAL AREAS. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? RESIDENTIAL AND COMMERCIAL b. Has the site been used for agriculture? If so, describe. UNKNOWN C. Describe any structures on the site. kM[0P►I:4 d. Will any structures be demolished? If so, what? NO e. What is the current zoning classification of the site? R-14 RESIDENTIAL 14 DWELLING UNITS PER ACRE f. What is the current comprehensive plan designation of the site? URBAN CENTER NORTH (UC-N) g. If applicable, what is the current shoreline master program designation of the site? DOES NOT APPLY h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. YES, THERE IS AN UN -NAMED CLASS 4 STREAM ON THE PROJECT SITE. i. Approximately how many people would reside or work in the completed project? VA2D02\active\0D15\0D022.0D0 132nd St Sewer\PermMF-PA 132nd 20140319.doc- 7 - NONE j. Approximately how many people would the completed project displace? NONE k. Proposed measures to avoid or reduce displacement impacts, if any: DOES NOT APPLY I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: THE PROPOSED PROJECT IS IDENTIFIED IN THE CITY OF RENTON FACILITIES PLAN, WHICH DESIGNATES THE PROJECT AS A FUTURE SERVICE IMPROVEMENT PROJECT. 9. HOUSING a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. NONE b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. NONE - Proposed measures to -reduce or -control. -housing Impacts, -I any: - - = =---4= =�:4•�a = DOES NOT APPLY 10. AESTHETICS a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed. NOT APPLICABLE b. What views in the immediate vicinity would be altered or obstructed? NOT APPLICABLE C. Proposed measures to reduce or control aesthetic impacts, if any: NOT APPLICABLE 11. LIGHT AND GLARE a. What type of light or glare will the proposal produce? What time of day would it mainly occur? NONE b. Could light or glare from the finished project be a safety hazard or interfere with views? VA2002\acbve10D15S00022.000 132nd St Sewer\PermitlSEPA 132nd 20140319.doc- 8 - NOT APPLICABLE C. What existing off -site sources of light or glare may affect your proposal? NONE d. Proposed measures to reduce or control light and glare impacts, if any: NOT APPLICABLE 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? EARLINGTON PARK IS LOCATED LESS THAN A MILE FROM THE PROJECT SITE. b. Would the proposed project displace any existing recreational uses? If so, describe. NO C. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: DOES NOT APPLY 13. HISTORIC AND CULTURAL PRESERVATION a. Are there any places or objects listed on, or proposed for, national state, or local preservation registers known to t e;oh-or_-next to the site? If so, generally describe. NONE KNOWN b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. NONE C. Proposed measures to reduce or control impacts, if any: DOES NOT APPLY 14. TRANSPORTATION a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. THE PROPOSED PROJECT CAN BE ACCESSED FROM THE EAST VIA RENTON AVENUE SOUTH AND FROM THE WEST VIA SOUTH LANGSTON ROAD OR SOT" AVENUE SOUTH. . b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? YES, THE CLOSEST TRANSIT STOP IS LOCATED LESS THAN A HALF MILE FROM THE PROJECT SITE AT THE INTERSECTION OF SOUTH 132ND STREET AND RENTON AVENUE SOUTH. V:12D02\acfve\DD151D002.2.000 132nd St Sewer\PermMSEPA 132nd 20140319.dor 9 - C. How many parking spaces would the completed project have? How many would the project eliminate? NONE d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private? ZUG e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. NO f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. NONE g. Proposed measures to reduce or control transportation impacts, if any: DOES NOT APPLY 15: PUBLIC SERVICES a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. NO b. Proposed measures to reduce or control direct impacts on public services, if any. DOES NOT APPLY 16. UTILITIES a. Circle utilities currently available at the site: ELECTRICI NATURAL GAS, WATER, REFUS ERVICEI ELEPHON , SANITARY SEWER, EPTIC SYSTEM, other. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. INSTALLATION OF THE NEW 8-INCH SEWER MAIN WILL REQUIRE EXCAVATION OF APPROXIMATELY 8- FOOT TO 10-FOOT DEEP TRENCHES. FACILITIES INCLUDE 8-INCH SEWER MAIN PIPE, 18-INCH STEEL CASING, MANHOLE INSTALLATION, AND ASSOCIATED APPURTENANCES, IN ADDITION TO BACKFILL AND RESTORATION. UTILITY SERVICES WILL BE PROVIDED BY THE CITY OF RENTON. C. SIGNATURE I, the undersigned, state that to the best of my knowledge the above information is true and complete. It is understood that the lead agency may withdraw any declaration of non -significance that it might issue in reliance upon this checklist should there be any willful misrepresentation or willful lack of full disclosure on my part. Proponent: r S It iZ Name Printed: u� Date: VA2D02\acbve\0015\DD022.000 132nd St Sewer\PermnSEPA 132nd 20140319.do� 10 - �- L ■ 1..� r 5:433rd St �'� Lee ng Giant��: KI 1 G C t7U N TY i -�- �— .,,.:,�;• ---� -.may, - :� 7 Legend City and County Boundary Other • •i City of Renton L.a Addresses Parcels Overlay Districts Auto Mall A Auto Mall B Employment Area Valley City Center Sign Regulation Area ,nf Urban Design District A El Urban Design District B Urban Design District C Urban Design District D Development Districts [] Annexations j, Annexation History Wastewater Structures Clean Outs End Cap (yC4 Manholes 7i Wet Well Wastwater Mains ....... City, Gravity City, Force Private, Gravity •��. Private, Force City, Dry King County Mains Gravity Xern( _— Force 2 jy Notes None W 19 Information Technology - GIS Thi97map is a user generated static output from an Internet mapping site and 249 0 124 249 Feet is for.reference only. Data layers that appear on this map may or may not be City ofWGS_1984_Web_Mercator_Auxiliary_Sphere ReiTf � Renton MapSupport@Rentonwa.gov accurate, current, or otherwise reliable.> 05/02/2014 THIS MAP IS NOT TO BE USED FOR NAVIGATION Finance & IT Division Kris Sorensen EXHIBIT 9 From: Fisher, Larry D (DFW) <Larry.Fisher@dfw.wa.(. Sent: Wednesday, April 09, 2014 7:50 AM To: Kris Sorensen Cc: Karen Walter (KWalter@muckleshoot.nsn.us) Subject: John Stewart SS Extension / LUA14-000453, ECF, VAR Hi Kris I. have reviewed the Notice of Application and proposed.Determination of Non -Significance -Mitigated for the subject project. A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings. Thank you for the opportunity to provide this information. Larry Fisher WDFW Area Habitat Biologist 1775 12th Ave NW Suite 201 Issaquah, WA 98027 425-313-5683 FAX 425-427-0570 Cell: 425-449-6790 0 1 EXHIBIT 10 C14A Or KE-N-LOIN LONG-RANGE WASTEWATER MANAGEMENT PLAN A COMPREHENSIVE SEWER SYSTEM PLAN Final 2010 MAYOR Denis Law PUBLIC WORKS DEPARTMENT ADMINISTRATOR Gregg Zimmerman UTILITY SYSTEMS DIVISION STAFF Lys Hornsby David Christensen Michael Benoit MAINTENANCE SERVICES DIVISION STAFF Richard Marshall Stan Job CITY COUNCIL Don Persson, President Terri Briere, President Pro Tern Randy Corman, Councilmember Marcie Palmer, Councilmember King Parker, Councilmember Greg Taylor, Councilmember Rich Zwicker, Councilmember PREPARED BY City of Renton with the assistance of Carollo Engineers PLAN REVIEW COMMENTS (LUA14-000453) PLAN ADDRESS: EXHIBIT 11 APPLICATION DATE: 04/04/2014 DESCRIPTION: The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-1 4. The proposed sewer main crosses the stream on the vacant property at the southwest comer of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on -site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. Reviewer Comments Community Services Review Created On: 04/22/2014 Leslie Betlach Ph: 425-430-6619 email: LBeflach@rentonwa.gov A. Environmental impacts comments: Protect all trees outside the construction limits from construction damage and soil compaction. Repair damage to trees and shrubs as a result of construction activities. B. Policy -related comments: There are no impacts to Parks C. Code -related comments: There are no impacts to Parks. Engineering Review Created On: 05/02/2014 Please provide geotechnical report for the subject project that details the groundwater level. It is also highly recommended to provide the 100 year water surface elevation of the stream crossing. Planning Review Created On: 05/02/2014 Planning: 1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless otherwise approved by the Development Services Division. 2. Commercial, multi -family, new single family and other nonresidential construction activities shall be restricted to the hours between seven o'clock (7:00) a.m. and eight o'clock (8:00) p.m., Monday through Friday. Work on Saturdays shall be restricted.to the hours between nine o'clock (9:00) a.m. and eight o'clock (8:00) p.m. No work shall be permitted on Sundays. 3. The,applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate any.r• equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of any tree to be retained. 4. The applicant shall erect and maintain six foot (6) high chain link temporary construction fencing around the drip lines of all retained trees, or along the perimeter of a stand of retained trees. Placards shall be placed on fencing every fifty feet (50') indicating the words, "NO TRESPASSING — Protected Trees' or on each side of the fencing if less than fifty feet (50'). Site access to individually protected trees or groups of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In addition, the applicant shall provide supervision whenever equipment or trucks are moving near trees. May 05, 2014 Page 1 of 1