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Home My WebLink AboutERC Report and Exhibits_KC PSERN Emergency Comm Tower Ext._16-000418.pdfDEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Project Location Map ERC Report King County PSERN LUA16-000418 ENVIRONMENTAL REVIEW COMMITTEE REPORT ERC MEETING DATE: June 27, 2016 Project Name: King County PSERN Emergency Communication Tower Extension Project Number: LUA16-000418, ECF, SA-H, CU-H, V-H Project Manager: Matthew Herrera, Senior Planner Owner: King County Applicant/Contact: Sarah Teleschow, Odelia Pacific Corporation, 5506 6th Avenue South, Seattle, WA 98108 Project Location: 3511 2nd Street, Renton, WA 98056 Project Summary: The applicant is requesting Hearing Examiner Site Plan Review, Conditional Use Permit, Variance, and Environmental Threshold Determination (SEPA) for a proposed 25-foot height increase and associated improvements to an existing 150-foot emergency communications tower. The proposal would result in an overall tower height of 175-feet with an antenna and lighting rod extension extending to 193-feet. The project site is the King County Office of Emergency Management located at 3511 NE 2nd Street. The project site is within the Light Industrial (IL) zoning district. The proposed communications tower improvements are a component of the Puget Sound Emergency Radio Network (PSERN) project intended to replace and upgrade the existing regional emergency network used to reach and coordinate emergency responders. Additional improvements to the communications tower include six (6) microwave dishes and two (2) antennas. Equipment and HVAC upgrades will occur within interior of the existing emergency management building. The proposed tower extension and antennas are proposed to be painted to closely match the existing facility. Site Area: 9.63 Acres STAFF RECOMMENDATION: Staff Recommends that the Environmental Review Committee issue a Determination of Non-Significance (DNS). City of Renton Department of Community & Economic Development Environmental Review Committee Report ERROR! REFERENCE SOURCE NOT FOUND.KING COUNTY PSERN EMERGENCY COMMUNICATION TOWER EXTENSIONLUA16-000418, ECF, SA-H, CU-H, V-HERROR! REFERENCE SOURCE NOT FOUND. Report of Error! Reference source not found. Page 2 of 3 ERC Report PART ONE: PROJECT DESRIPTION / BACKGROUND The applicant is requesting Hearing Examiner Site Plan Review, Conditional Use Permit, and Variance approval and Environmental (SEPA) review for a proposed 25-foot tower height increase to an existing 150-foot staffed emergency communications tower located at the King County Office of Emergency Management. The project site is located at 3511 NE 2nd St. APN 162305-9138. The site is 419,918 square feet (9.64 acres) and within the Light Industrial (IL) zoning district. Surrounding land uses and zoning are as follows: Direction Zoning Current Land Use North Light Industrial City of Renton and King County maintenance facilities – Government Facilities East Residential Manufactured Home Park Sunnydale and Leisure Village Manufactured Home Parks – Residential manufactured homes South Resource Conservation Vacant King County owned property. Vegetated critical area , Landslide Hazards with slopes between 40-90 percent. – Vacant West Light industrial/Resource Conservation/Residential-10 King County maintenance, Liberty Ridge subdivision open space/critical area tracts (Landslide Hazards), Liberty Ridge subdivision. Government Facilities and Single-Family Residential. The tower increase is a component of the Puget Sound Emergency Radio Networ k (PSERN), a King County voter approved system that will update emergency radio networks to increase coverage and capacity. The 25-foot height increase is needed to accommodate three (3) microwave antennas that will connect to existing towers located on Capitol Hill in Seattle and implement the PSERN. The Federal Aviation Administration issued a Determination of No Hazard to Air Navigation on April 22, 2016. The determination is conditioned that the applicant relocates its existing red light beacon to the t op of the proposed extension. The proposed work will occur on the existing tower and within the existing emergency management building. No ground disturbances, vegetation removal, new impervious surfaces, or other improvements outside of the existing building footprint are proposed. The site contains sensitive slopes and is within a Wellhead Protection Zone 2 as identified in the COR mapping database. Sensitive slopes are within the unimproved portions of the property approximately 140-feet to the north and 240-feet to east of the existing tower. A geotechnical report identified no landslide or seismic hazards on the subject site. 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. A. Environmental Threshold Recommendation Based on analysis of probable impacts from the proposal, staff recommends that the Responsible Officials: City of Renton Department of Community & Economic Development Environmental Review Committee Report ERROR! REFERENCE SOURCE NOT FOUND.KING COUNTY PSERN EMERGENCY COMMUNICATION TOWER EXTENSIONLUA16-000418, ECF, SA-H, CU-H, V-HERROR! REFERENCE SOURCE NOT FOUND. Report of Error! Reference source not found. Page 3 of 3 ERC Report Issue a DNS with a 14-day Appeal Period. B. Exhibits Exhibit 1 ERC Report. Exhibit 2 Neighborhood Map Exhibit 3 Site Plan Exhibit 4 Civil Survey Exhibit 5 Existing and Proposed Elevations Exhibit 6 Photosimulations Exhibit 7 FAA Determination of No Hazard to Air Navigation Exhibit 8 Geotechnical Report Exhibit 9 Advisory Notes to Applicant 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. Aesthetics Impacts: The proposed 25-foot tower extension will result in an overall tower height of 175-feet. Viewshed impacts from residential areas should be minimal as the location, topography, and vegetation provides screening of the existing tower and proposed extension. Photosimulations provided by the applicant identify view impacts north with in the King County and City of Renton facilities area and to the east within the manufactured home park. Significant topographic relief and mature vegetation to the south and west indicate limited viewshed impacts to adjacent areas. The tower extension narrow lattice type construction is unlikely to alter or obstruct any views. The applicant proposes to paint the tower extension and antennas to closely match the existing tower. Mitigation Measures: No further mitigation required. 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. The Environmental Determination decision will become final if the decision is not appealed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680). Environmental Determination Appeal Process: Appeals of the environmental determination must be filed in writing together with the required fee to: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057, on or before 5:00 p.m. on July 11, 2016. 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. CIVIL SURVEY C-1 SHEET NUMBER REVISIONS DATE: DRAWN BY: CHECKED BY: SITE DESCRIPTION BYDATE SHEET TITLE REV PSERN RCECC 3511 NE 2ND STREET RENTON,WA 98056 10-1-15 VJT MRM VICINITY MAP NOT TO SCALE Structural Engineering Architectural www.LDCcorp.com 14201 NE 200th St.,#100 Woodinville,WA 98072 THE CIVIL ENGINEERING GROUP Fx.425.482.2893 Ph.425.806.1869 Survey Structural Engineering Architectural www.LDCcorp.com 14201 NE 200th St.,#100 Woodinville,WA 98072 THE CIVIL ENGINEERING GROUP Fx.425.482.2893 Ph.425.806.1869 Survey EXISTING TOWER ELEVATION NOT TO SCALE PROJECT CIVIL SURVEY C-1.1 SHEET NUMBER REVISIONS DATE: DRAWN BY: CHECKED BY: SITE DESCRIPTION BYDATE SHEET TITLE REV PSERN RCECC 3511 NE 2ND STREET RENTON,WA 98056 10-1-15 VJT MRM Structural Engineering Architectural www.LDCcorp.com 14201 NE 200th St.,#100 Woodinville,WA 98072 THE CIVIL ENGINEERING GROUP Fx.425.482.2893 Ph.425.806.1869 Survey Structural Engineering Architectural www.LDCcorp.com 14201 NE 200th St.,#100 Woodinville,WA 98072 THE CIVIL ENGINEERING GROUP Fx.425.482.2893 Ph.425.806.1869 Survey Mail Processing Center Federal Aviation Administration Southwest Regional Office Obstruction Evaluation Group 10101 Hillwood Parkway Fort Worth, TX 76177 Aeronautical Study No. 2016-ANM-39-OE Prior Study No. 2003-ANM-2286-OE Page 1 of 8 Issued Date: 04/22/2016 Sean Douglas Puget Sound Emergency Radio Network 401 5th Avenue Suite 0600 Seattle, WA 98104 ** DETERMINATION OF NO HAZARD TO AIR NAVIGATION ** The Federal Aviation Administration has conducted an aeronautical study under the provisions of 49 U.S.C., Section 44718 and if applicable Title 14 of the Code of Federal Regulations, part 77, concerning: Structure:Antenna Tower RCECC Location:Renton, WA Latitude:47-28-50.30N NAD 83 Longitude:122-10-15.95W Heights:343 feet site elevation (SE) 180 feet above ground level (AGL) 523 feet above mean sea level (AMSL) This aeronautical study revealed that the structure would have no substantial adverse effect on the safe and efficient utilization of the navigable airspace by aircraft or on the operation of air navigation facilities. Therefore, pursuant to the authority delegated to me, it is hereby determined that the structure would not be a hazard to air navigation provided the following condition(s) is(are) met: As a condition to this Determination, the structure is marked/lighted in accordance with FAA Advisory circular 70/7460-1 L, Obstruction Marking and Lighting, red lights - Chapters 4,5(Red),&12. It is required that FAA Form 7460-2, Notice of Actual Construction or Alteration, be e-filed any time the project is abandoned or: _____ At least 10 days prior to start of construction (7460-2, Part 1) __X__ Within 5 days after the construction reaches its greatest height (7460-2, Part 2) See attachment for additional condition(s) or information. This determination expires on 10/22/2017 unless: (a)the construction is started (not necessarily completed) and FAA Form 7460-2, Notice of Actual Construction or Alteration, is received by this office. (b)extended, revised, or terminated by the issuing office. ADVISORY NOTES TO APPLICANT LUA16-000418 June 07, 2016 Name: King County PSERN Emergency Communications Tower Extension Application Date:3511 NE 2ND St, N/A RENTON, WA 98056 Site Address: PLAN - Planning Review - Land Use Version 1 | Planning Review Comments Contact: Matt Herrera | 425-430-6593 | mherrera@rentonwa.gov Recommendations: 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 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. This permit is shall comply with the Bald and Golden Eagle Protection Act. The permitted is responsible for adhering to the U.S. Fish and Wildlife Service National Bald Eagle Management Guidelines (2007) and /or your U.S. Fish and Wildlife Service permit. Technical Services Comments Contact: Amanda Askren | 425-430-7369 | aaskren@rentonwa.gov Recommendations: Plan set does not reference City of Renton Horizontal or Vertical Control. Page 1 of 1Ran: June 21, 2016