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HomeMy WebLinkAboutPermit 91-03-CUP - HUNT JOHN - US WEST CELLULAR TOWER SEPA AND CONDITIONAL USE91-3-cup 13130 44th avenue south epic-30-91 us west cellular tower City of Tukwila 6200 Southcenter Boulevard Tukwila Washington 98188 (206) 433 -1800 Gary L. VanDusen, Mayor M E M O R A N D U M TO: Mayor VanDusen FROM: Denni Shefrin, Department of Community Development DATE: November 14, 1991 SUBJECT: U.S. WEST Cellular Phone Facility APPEAL BACKGROUND: Normed -Shaw Partnership has appealed an approved Conditional Use Permit (CUP) for a cellular phone facility. The site is located at 13130 44th Avenue South (adjacent to the Highway 599 /133rd Street interchange). The reason for the appeal is explained in Appendix B attached. On September 26, 1991, the Planning Commission conditionally approved the CUP for a 120 -foot tall cellular phone tower and a 432 - square -foot equipment building with four conditions: 1. That Douglas Fir trees be planted along the perimeter of the planted area between the St. Johns Wort and seeded grass areas to create a visual wall of trees; 2. That clusters of Poplar trees be planted on the street side of the fir trees; 3. That shrub beds be interspersed along the perimeter of trees; 4. That the applicant shall provide a maintenance agreement to ensure the establishment and survival of all landscape materials. The proposal was originally heard by the Planning Commission on August 22nd. The applicant was asked to return to the Planning Commission in September with a revised proposal to include increased setbacks and landscaping (see Attachments F & G). The conditions of final approval would be reflected in plans submitted for a building permit. APPENDIX A ',..,•k4solgr.TIT' • q CU ri Permit 91-03-CUP - HUNT JOHN - US WEST CELLULAR TOWER SEPA AND CONDITIONAL USE 91-3-CUP 7. . : ql--3-c-up 0‘. v en qI3 COP 0 0 1 M O 1 ZI- CITY OF TUKWILA 6200 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON 98188 October 11, 1991 John Hunt Hunt & Associates 2205 Seattle Tower Third & University Seattle, WA 98101 RE: Letter of Appeal for 91 -3 -CUP: US WEST Cellular Phone Facility Dear John: Enclosed is a copy of the letter of appeal from Normed -Shaw Partnership in reference to the above project approved by the Tukwila Planning Commission on September 26, 1991. To assist the City Council in gaining a full understanding of your request, it is recommended that additional photographs be provided. The photographs should include a panoramic perspective taken from the Normed site with a scaled overlay of the cellular phone tower. The photos should be at least 5" x 7" in size. A tentative City Council hearing date has been set for November 11, 1991. The photographs should be submitted at least two weeks prior. You will be notified immediately once the date has been confirmed: Feel free to contact me if you have further questions. Sincerely, Denni Shefrin, Associate Planner Attachment cc: 91 -3 -CUP File PHONE b (206) 433.1800 Gory L. VanDnscn, Mayor Nor Med P.O. Box 3644 Seattle, WA 98124 (206) 242-8228 October 4, 1991 Ms. Jane Cantu City Clerk City of Tukwila 6300 Southcenter Boulevard Tukwila, Washington 98188 Dear Ms. Cantu, NORMED -SHAW PARTNERSHIP OCT - 4 1991 CITY OF TUK9ivtLA CITY CLERK Please accept this letter as an appeal of the Planning Commission Decision to grant a Conditional Use permit (Case Number 91 -3 -CUP: U.S. West Cellular Tower) to US WEST New Vector Group, Inc. for the construction of a 120 -foot monopole cellular phone antenna at 13130 44th Avenue South (adjacent to the Hwy 599/133rd Street interchange. Currently we own the property directly across the street from the proposed tower. We also own six+ (6 +) acres a short block away, which is "home" to our wholesale distribution business and the planned development of other high - quality office/ warehouse buildings. When we originally constructed our current facilities, we were encouraged by the City of Tukwila, and particularly the Department of Community Development, to build a quality building as this was a "high visibility area ". At that time we were assured all future development would be continued at a high level of appearance and quality. This particular location is a key gateway to and from Interstate 5 and State Route 599. It therefore has a high degree of visibility and creates an important first impression for people exiting these thoroughfares into Tukwila. A tower at this location would significantly detract from what is otherwise becoming an excellent first impression and especially so as the surrounding properties upgrade in quality. Occupational. Emergency & Alternate Care Medical Supplies Lawrence M. Shaw President • Ms. Jane Cantu October 4, 1991 Page 2 This tower is 120 feet tall which will certainly be a very visible and obtrusive landmark. It would also appear that such a tower, if located on a higher elevation, would not require a height of 120 feet and would be less obtrusive. We strongly urge the City Council to reconsider the granting of this Conditional Use Permit and encourage the applicant to find a more Suitable location for this tower. Sincerely, NORMED - SHAW PARTNERSHIP Lawrence M. Shaw General Partner LMS:ajv CITY OF TUKWILA 6200 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON 98188 September 30, Applicant: Contact: Address: N O T I C E O F D E C I S I O N 1991 U.S.WEST NewVector Group John Hunt 2205 Seattle Tower Third & University Seattle, WA 98101 Re: Notice of Decision by the Planning Commission File Number 91 -3 -CUP The conditions are as follows: PHONE 11 (206) 433.1800 Gtny 1.. VnnDnsen, Mayor This is to confirm that on September 25, 1991, the Planning Commission conditionally approved the construction of a 120 -foot tall cellular phone tower and square -foot equipment building to be located at 13130 44th Avenue (adjacent to the Highway 599/ 133rd St. interchange) in accordan e with the revised site plan dated September 10, 1991. 4-3 2 'P ' 14 I471 ,. Q 1. That Douglas Fir trees be planted along the perimeter of the planted area between the St. Johns Wort and seeded grass area to create a visual wall of trees; 2. That clusters of Poplar trees be planted on the street side of the fir trees; 3. That shrub beds be interspersed along the perimeter of trees. 4. The applicant shall provide a maintenance agreement to ensure the establishment and survival of all landscape materials. A revised landscape plan and maintenance agreement shall be submitted to the Planning Division for final approval prior to the issuance of building permits. Any changes to the specific design approved by the Planning Commission would require further review and approval by the Planning Commission. Minor, incidental changes may be administratively approved by the Director of Community Development. The decision of the Planning Commission is not final until the appeal period has elapsed, which is ten calender days after the above date of decision. Appeals must be filed in writing to the Sincerely, Denni Shefri.n, Associate Planner If you have any questions regarding this to contact me at 431 -3663. City Clerk by 5:00 p.m. on the final day of the appeal period. Where the final day of an appeal period falls on a weekend or holiday, the appeal period would be extended to 5:00 p.m. on the next work day. project, please feel free CITY OF TUKWILA . 6200 SOUTHCENTER BOULEVARD. TUKWIL4, WASHINGTON 98188 PLANNING COMMISSION MINUTES SEPTEMBER 26, 1991 The work session was called to order at 6:10 p.m. Members present were Messrs. Flesher, Malina, Haggerton, Gomez, and Knudson. Representing the staff were Rick Beeler, Vernon Umetsu, and Sylvia Schnug. Vernon Umetsu provided a review of the comments made by the City Council regarding the Multi- Family Design Standards draft. Rick Beeler discussed the Council's review of the SAO amendments. Vernon Umetsu and Commissioner Flesher provided a briefing of the Multi -Family Focus Group meeting which they attended. The Planning Commissioners agreed to have the final graphics for the Guidelines section created before a public hearing is held on the Multi - Family. Design Standards. Staff noted that attending the Focus Group meeting were Carl Bloss from Schneider Homes; Grant Brealey, a developer of duplex and four -plex apartments and home occupied structures; and Everett Forster of Rosewood Properties. • . • Mr. . Flesher adjourned the work session at 7:45 p.m. 91 -3 -CUP: U.S. West Cellular Tower PHONE N12061 4311800 Gury L. VunDusen..ttavor Mr. Flesher called the public hearing to order at 8:10 p.m. Representing the staff were Denni Shefrin, Darren Wilson and Jack Pace. MR. HAGGERTON MOVED TO APPROVE A PORTION OF THE MINUTES OF THE AUGUST 22, 1991 MEETING. MR. GOMEZ SECONDED THE MOTION; MOTION PASSED UNANIMOUSLY. Denni Shefrin presented the staff report. She stated that this was a continuation from the August 22, 1991 hearing. The applicant is proposing a 120 foot tall cellular tower, as well as an equipment building. One of the issues from the August 22nd hearing was how to mitigate the visual impacts from the adjacent properties. The applicant has re- submitted the APPENDIX C Planning Commission Minutes Page 2 September 26, 1991 site plan with a revised landscape plan and cross sections in an attempt to address those concerns. The changes include increased setbacks by approximately 93 feet. Also, the applicant is proposing to use the entire area between the property line and the existing building for landscaping improvements. The proposal also includes increased landscape area, and an increase in the number of trees and shrubs. Staff stated that in reviewing this application, the Planning Commission should consider two things: 1) does the proposal comply with the criteria of a Conditional Use Permit and 2) if they decided that this is an appropriate site for this type of facility, are their concerns adequately addressed? The Planning Department did discuss with the applicant additional modifications that could be considered to enhance the site and increase visual buffers between the adjacent properties and the facility. Mr. Malina asked if there was a maintenance agreement proposed. Staff stated that the applicant would be better able to address that issue. John Hunt, 1218 3rd Ave., Seattle, WA: He stated that the changes in the landscaping plan were made on the general direction given by the Commission members at the last meeting with some assistance from staff. He stated that certain types of maintenance, and irrigation would depend on what is decided as far as the actual design. He stated that U.S. West would commit to any maintenance agreement that the City thought would be appropriate and necessary to keep the site in the condition which would be approved. Mr. Malina asked if there currently was a maintenance crew which visited their existing sites on a regular basis. Mr. Hunt said that they had a inspector for each system who comes out once or twice a month to verify if anything needs to be done. Most of the sites do not have nearly this much landscaping; most of the sites are only 60 square feet. Mr. Malina asked how many of the existing sites have an irrigation system installed. Mr. Hunt said that he could not answer that because he is only a consultant to U.S. West, and has not visited all of their sites. Rich Ward, 1906 E. Aloha, Seattle; landscape architect: He stated that the revised landscape plans speak for themselves and he would answer any questions of the Planning Commission. Mr. Flesher asked what maintenance would be required with the landscaping that they are proposing. Planning Commission Minutes Page 3 September 26, 1991 Mr. Ward said the maintenance of the site would be a minimum of once a month for mowing, weeding, leaf collection, mulching and checking of the irrigation system. Since the area around the site belongs to the Department of Transportation, to have a manicured lawn on the site may not be the proper way to handle this project. Mr. Malina asked if that would be his recommendation to U.S. West. Mr. Ward said that he would recommend that. Mr. Malina asked if he was aware if U.S. West had a maintenance program in place in which each site is visited on a timely schedule. Mr. Ward stated that he thought that every site was visited at least once a month, but did not know if they had a landscape crew. Mr. Hunt stated that there is a site supervisor who checks each site. In this case, it would be easy to add a landscaping check on any site which has substantial landscaping. He went on to say that because there aren't that many sites that have extensive landscaping, it's probably more appropriate to contract out certain types of maintenance because they don't have enough for a full crew. Mr. Flesher closed the public hearing at 8:20 p.m. Mr. Haggerton asked staff how tall the metal light standards are in the City. Staff stated approximately 35-40 feet. Mr. Haggerton said that he would not . make a motion because he felt the proposed tower is too tall for that particular area. He went on to say that in his opinion, it was too . domineering for this gateway entrance into Tukwila. Mr. Flesher re- opened the public hearing at 8:25 p.m. Mr. Haggerton asked the applicant if U.S. West had . done an adequate job of finding a location or if there isn't another location they might consider? Mr. Hunt stated that the entire gateway area was searched and no -one was found in that area who was willing to lease to U.S. West. It would take 4.6 months to go through a new FAA filing before they could file for a site other than this site. If a site was selected west of this one, the height would have to be increased, in order to provide for coverage up the hill. He went on to say that U.S. West was unaware that this was a gateway area until two months into the Planning Commission Minutes September 26, 1991 project. Mr. Flesher re- closed the public hearing at 8:35 p.m. 91 -1 -R: North Hills Office Staff added that this project was also delayed because of the Sensitive Areas Moratorium and staff could not proceed with the application until the moratorium was removed. MR. MALINA MOVED TO APPROVE PROJECT 91-3-CUP: U.S. WEST NEW VECTOR GROUP, WITH THE REVISED SITE PLAN, AND RECOMMEND THAT A MAINTENANCE PLAN BE PUT IN PLACE. MR. FLESHER SECONDED THE MOTION; MOTION PASSED BY= A VOTE :OF3 =2, WITH MESSRS. HAGGERTON AND GOMEZ OPPOSED. Darren Wilson presented the staff . report. Staff stated that the applicant for this project, Gencor, is requesting a rezone from. P.O. (Professional Office), to C -1 (Neighborhood Retail). The site is located at 5900 Southcenter Blvd. (North Hills Office /Gencor Development). The Comprehensive Plan designation for this area is commercial and the existing zoning is P.O. There was a Mitigated Determination of Non - Significance issued in October 1990. Approximately a year ago the Planning Commission recommended approval of the rezone, however, the City Council denied the rezone due to the traffic analysis. The applicant has • come back and submitted additional information pertaining to the traffic analysis and the concerns of the City Council. Staff stated that the rezone complies with the Comprehensive Land Use Policy Plan, in addition, the rezone is not considered to be detrimental to the public welfare.: This site received Board of Architectural Review site plan approval in July of 1990 and the plan will comply with the C -1 zoning designation. Through the Environmental Review process, there were no significant impacts that were identified, however, it is a steep site. The Council approved the waiver from the Sensitive Areas Ordinance to process the SEPA determination. The applicant has provided additional landscaping, as well as a geo- technical soils report that exceed the SAO requirements as they are today. Ron Cameron, City of Tukwila Engineer, has provided a letter which indicates that the rezone will not have any measurable effects on traffic. This rezone would not create spot zoning. This site is unique in that to the 'north is a steep slope, but is buffered by the multi- family development, to the east is landscaping which serves as a buffer between the existing office building, and to the west are commercial uses. With regard to the requirement differences between P.O. and C -1, the height requirements in P.O. are the same as that required in C- 1; the landscaping requirements in P.O. exceed that required in C -1, the applicant has TO: FROM: DATE: SUBJECT: Background Request: Location: On August item to Planning proposal: Discussion CITY OF TUKWILA 6200 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON 98188 PHONE # (2061 933.1800 Can L. I anDuscu, Mayor SUPPLEMENT TO STAFF REPORT DATED AUGUST 15, 1991 FOR 91 -3 -CUP Planning Commission Members Denni Shefrin, Associate Planner September 19, 1991 91 -3 -CUP, U.S. WEST NewVector Group, Inc. Continued from August 22, 1991 hearing U.S. WEST New Vector Group, Inc. proposes to erect a 120 - foot tall monopole cellular phone antenna and construct a 423 - square -foot equipment building. 13130 44th Avenue South (Adjacent to the Hwy 599/133rd Street Interchange) 22nd, The Planning Commission moved to continue the above allow the applicant to modify the site design. The Commission raised the following concerns regarding the 1) Because the site is located within a high visibility area, the setback from the southwest corner of the site for both the equipment building and monopole should be increased; 2) Visual screening of the facility should be adequate to mitigate visual impacts to adjacent streets and properties. Based on the above issues, the Planning Commission moved to continue the public hearing to allow the applicant to modify the site design. In response to items cne and two above, the applicant has made the following revisions (see attachments F and G): 1. The setback for the equipment building from the southeast property line has been increased from 20 feet to 60 feet; 5. Materials for both the retaining wall and equipment building have not changed from the original concept. 6. Landscape materials would include two types of groundcover, three types of shrubs, and two types of trees including Poplar and Douglas Fir. In reviewing the proposal, the Planning Commission should consider the following two issues: 1. Given the changes now proposed by the applicant, do the revisions comply with the Conditional Use Criteria for the approval of a 120 -foot tall cellular phone tower at this location? 2. And if this location is deemed appropriate for the facility, would the changes as proposed address the concerns raised? If the Planning Commission feels the site is appropriate for the cellular phone facility, the Planning staff recommends additional landscaping be incorporated into the site plan revisions to create a more dense visual screen of the facility. The following is recommended: 1. Plant Douglas Firs along the permimeter of the planted area between the St. Johns Wort and seeded grass (see attachment F); 2. Plant clusters of Poplars along the outside the line of fir trees; 3. Shrub beds could be interspersed along the perimeter of the trees. s 4:M4 . 45 : §41.4 7 : 1 11WevfLr.—P414,. f: CITY OF TUKWILA 620f SOUTIICENTF.R BOULEVARD. TURII7LA, WASHINGTON 98188 HEARING DATE: FILE NUMBER: APPLICANT: REQUEST: LOCATION: ACREAGE: COMPREHENSIVE PLAN DESIGNATION: ZONING DISTRICT: SEPA DETERMINATION: PLANNING STAFF ATTACHMENTS: C. Approximately .54 acres Light Industrial M -1 - Light Industry Denni Shefrin 1 0 1l0,'NI: r i21 lrif .:3:;• r STAFF REPORT TO THE PLANNING COMMISSION Prepared August 15, 1991 August 22, 1991 91 -3 -CUP U.S. WEST New Vector Group, Inc. Conditional Use Permit . approval to erect a 120 -foot tall monopole cellular phone antenna and construct a 432- square- foot equipment building. 13130 44th Avenue South (adjacent to the Hwy 599/133rd St. interchange). A Determination of Nonsignificance was issued on August 5, 1991. A. Site Plan B. Elevations/Floor Plans C. Landscape Plan D. Photo Overlay (to be provided at Planning Commission meeting). E. Letter dated July 1, 1991 Gwy 1.. lanllusr++.•Ill(? VICINITY /SITE INFORMATION BACKGROUND DECISION CRITERIA FINDINGS Staff Report to the 91 -3 -CUP: U.W. West New Vector Planning Commission Page 2 Project Description: The proposal includes the construction of a 423 - square foot, 10 feet 7 -inch high pre- fabricated equipment building and a 120 - foot -tall cellular phone monopole on the southwest portion of an approximately .50 acre site. The monopole would carry 9 cellular phone base station antennas. The facility would be enclosed on the east and north sides by a 6- foot -high chain -link security fence. Existing and Surrounding Land Use: The corner site is relatively flat and is occupied by an existing industrial /storage building. The property is accessed by 132nd St. (Valley St.) which is currently unpaved. Land uses which are in the immediate vicinity are predominately light industrial and warehouses. Adjacent land uses include: North: industrial /storage building/contractor's office South: Hwy 599 interchange East: Hwy 599 interchange West: Single family residence Terrain: The portion of the site proposed for the use is vacant and has a gravel surface with tall grasses along the south and east property lines. A 6 -foot high chain link fence runs along the south and east property lines. The applicant proposes to erect a 432 - square -foot equipment building and a 120 -foot high cellular monopole to carry 9 cellular phone base station antennas. The building will contain low -power FM -band radios (800 -900 MHz bands at 100 watts output from antenna) and computers to control channel usage for mobile or portable phones in the immediate area (1 -2 mile radius). The equipment building will contain back -up batteries for short power outages in the main room and a diesel generator for extended power outage use in a separate chamber at the end of the building. Diesel fuel (155 gallons) will be stored in an isolated chamber with "spill - pan" floor to contain all liquids within building. The Conditional Use Criteria are shown below in bold print followed by the applicant's and staffs response. 91 -3 -CUP: U.W. West New Vector Staff Report to the Planning Commission 18.64.050: General Review Criteria. Page 3 (A) The proposed use will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity of the proposed use or in the district in which the subject property is situated; Applicant's Response "The operation will create very little traffic (1 visit per month by technician plus any repair visits). Noise will be less than the ambient highway noise. No processes will create impacts off -site or hazardous emissions or spills. Radio frequencies and signal strength will not interfere with other electronic processor equipment in the industrial area, nor create any health risks for persons living or working in the area. Staff's Response The site is located in an industrial zone surrounded by a highway, industrial and warehouse uses except for an isolated single -family residence. The cellular phone monopole and building would be placed close to adjacent streets and away from the nearby building. Cellular radio power density levels are regulated by the government as a potential environmental concern. The very low power levels and ultra high frequencies at which the cell site transmissions occur demand periods only (weekday commuting hours) according to the applicant. (B) The proposed use shall meet or exceed the performance standards that are required in the district it will occupy; Applicant's Response "Applicant will discuss structure colors and site screening with City staff and will follow specifications recommended by staff and agreed to by BAR." Staff's Response The M -1 zone requires 15 feet of landscaping in the front and no landscaping adjacent to the sides and rear property lines. The zone allows a building height of 4 stories or 45 feet. The site is currently improved with a 4,100- square -foot industrial building. There is currently no landscaping on the property except for tall grasses along the south and east property lines. Staff Report to the 91 -3 -CUP: U.W. West New. Vector Planning Commission Page 4 The applicant proposes a 15 to 25 -foot wide landscaped area along the south and along half the length of the east property line. The equipment building would be 12 -feet 7- inches high. (C) The proposed development shall be compatible generally with the surrounding land uses in terms of traffic and pedestrian circulation, building and site design. Applicant's Response Extremely low traffic would be expected and would not generate or impede pedestrian traffic. Building and site design will be of higher quality than existing adjacent development. Staff's Response Applicant's Response There would be very little vehicular or pedestrian traffic associated with this project. Large box -type warehouse buildings dominate the vicinity. The design and exterior materials of the equipment building were selected to blend with the natural setting being created as a "gateway" and to soften the overall appearance of the facility. (D) The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. The site is in a manufacturing area where existing and future land uses are least likely to conflict with it (no consistent, existing pattern). The site uses a remote property remnant on a highway interchange, generally unsuited to and therefore not affecting or displacing other manufacturing uses. The use is located in an area where the view form the surrounding residential areas (hillside to west) already includes similar, pole - type visual elements. Staff's Response There are no specific policies contained within the City's Comprehensive Policy Plan which address this type of utility, however, Goal 3 of the Transportation/Utilities section states the following: "Assure a public service level consistent with the needs and desires of the community." (Page 19) Several factors determine the siting of cellular phone facilities to ensure quality service: Staff Report to the 91 -3 -CUP: U.W. West New Vector Planning Commission Page 5 1. topographic constraints such as hillsides 2. heights of surrounding structures 3. ability to maintain a direct line of site with other cellular phone facilities. The table below lists approved facilities (Nos. 1 and 2) and proposed (Nos. 3 thru 5). Location Height of Pole w /antenna 1) 12228 51st Place South 100 feet 2) NE corner of S 158th St. 115 feet (Longacres Way) and Nelson Place. 3) 15426 35 Ave. S. 60 feet 4) 566B Industry Drive 78 feet 5) 13130 44th Ave S. 120 feet By permitting fewer cellular facilities at key locations may reduce the need for additional cell sites throughout the City, and thus, reduce negative cumulative visual impacts. (E) All measures have been taken to minimize the possible adverse impacts which the proposed use may have on the area in which it is located. Applicant's Response "See siting factors noted above; the pole height is the minimum necessary to serve the local area with this utility service from a single site, without proliferation of such sites in the same geographic area and visual area." Staff's Response Because of the site's topography, any structure erected on the property would be difficult to screen. The property is at a lower elevation than the surrounding properties and is visible from the highway and from both directions on 133rd Street. The proximity of the site to the interchange provides an opportunity to create a gateway effect into the City of Tukwila. For this reason, staff has requested the Staff Report to the 91 -3 -CUP: U.W. West New Vector Planning Commission Page 6 applicant incorporate into the overall design, elements which would help to identify the area as a gateway. The following features would be incorporated into the project to achieve two goals: Goals. 1. create a gateway into the City 2. soften the visual impact of the cellular phone facility from adjacent streets and properties. Features. 1. The exterior of the equipment building would be of naturally - stained wood siding with a metal mansard roof 2. A masonry retaining wall would wrap around the south and east sides of the building 3. A 5 -foot high landscape berm would be placed along the south and a portion of the east property line (within the Hwy 599 public right -of -way) 4. Landscape materials consisting of Poplar and Douglas Fir trees, deciduous and evergreen shrubs and ivy would be planted along the south and east portions of the site property lines atop the berm. When landscaping is used to give identity to an area, similar materials are common in order to create a focal axis into or through an area. Poplar trees were specifically chosen because they exist on the site south of the on -ramp. Also the vertical growth of Poplars would help to soften the impact of the monopole. In addition, the monopole would be painted sky -grey to blend with the typical year - round sky color. CONCLUSIONS 1. Due to the location and type of use proposed, the use would not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity. 2. Because of the location of the structure relative to the site, surrounding buildings and surrounding land uses and proposed color, the monopole would not create an adverse visual impact to the area. 3. The siting of the structure would not impede vehicular or pedestrian movement. St .•• Report to the P1. nning Commission RECOMMENDATIONS 91 -3 -CUP: U.W. West New Vector Page 7 Since no specific policy currently exists that addresses the specific request, the request for a Conditional Use Permit would not adversely affect the implementation of the Comprehensive Land Use Policy Plan. The applicant has addressed all measures in minimizing any adverse impacts for this area. Proposed landscaping would be in accordance with Attachment B. The monopole would be painted grey to blend with the sky. The equipment building would be a natural - stained wood siding with a mansard roof. The retaining wall would be masonry. T e Planning Division recommends approval with the following conditions: 1. Attachment 'B' calls out possible U.S.West signage with the proposed retaining wall (east elevatioin). All signage must be reviewed and approved by the Planning Division prior to issance of sign permits. Signage should be designed in a manner which enhances the overall project. As noted in the report, a color sample for the monopole has not yet been provided. The applicant shall submit to the Planning Division a color sample prior to the issuance of Building Permits. ' �. ..ol IN /,'\ SITE PLAN �J .ule 20' .0. N \' � N nlw pApflC NlGHMAY II ([33rd sr - noc) / • S.'.t II \ ,-rratt. A,n.,.t AREA MAP :-I VICINITY MAP LEGAL DESCRIPTION lOn • S f..NO 1t t 0 •1010 1 n\I.10N •ntAl O11O0 I IO 3.101100■ C*•OIN exacts fCO•O0G 10 tut .000001 YOIUMI Si Or Tull TACO n, w ■•.L COUNTS, w00SC100. Z . Ogr. Ce > =3 : 5 Q gf 3 LW DMV*/ 01% DATE: 2- 3 s •.. REVISION: ••M•1 SHEET 2 01 _ .T 0CC i.. R,0_ NOW •■••••■• -8111=1M•m••••■a•S ELEVATIONS FLOOR'PLAN 7K won iwcorc. rner or 1 L. •:t .0 y•• Mw awe v • L�J Mbe FOUNDATION PLAN O FOUNDATION DETAIL rRL ....o• ace. IV'. MO( T ANCHOR DETAIL be WWI ELEVATION OF TOWER & EQUIPMENT BUILDING {CALL: 111{'. U z L 0 O t a il • lug J � W :14 7 .. - ... s . am dmd a 1.41. 2 Tukwila Planning Department City Hall, 6300 Southcenter Boulevard Tukwila, WA 98188 Attention: Denni Shefrin , .v ✓. '-� x1991 — Re: Conditional Use Pennit Applications U S WEST NewVector, Riverton and Andover Cell Sites Dear Ms. Shefrin: Hung & .Associates • 4 -0846 2205 Seattle Tower Third & University SC att l e,Washington 98101 July 1, 1991 I am enclosing supplemental materials to assist you in the preparation of the staff report for the above applications. These include: (1) Photo - composites made up of photos of an existing NewVector "monopole" of similar size, taken at measured distances, mounted on background 'photos of the Riverton site taken at the same estimated distances, at various points around the vicinity. The Andover pole will not be visible for its full height iron most areas, so no photo-composite was made; the architectural elevation should adequately illustrate the scale. (2) A basic landscaping plan for the Riverton site, sent under separate cover by the architect; we would expect to use this as a starting point for discussion with Planning staff of the best landscaping to meet the City's objectives in this area. No landscaping plan is submitted for the Andover site, as it is surrounded by paved parking and loading area. A solid fencing screen could b^ used if appropriate, but landscaping would be difficult to install (see photos). (3) Description • f the need for the facilities, based on NewVector's system design and need for capacity e: :mnsion (following discussion). I hope that these will be helpful, and that you will feel free to call me if you need any materials further explained or supplemented. THE SYSTEM DESIGN: Cellular phone service is provided in "cells ", which are geographic service areas defined by local topography as reachable from a single "cell site" with line -of -sight transmission from the cell site's antennas. The system uses low - power FM radios to broadcast in allocated frequencies in the . upper end of the UHF hand. Where a market has a potential for a large volume of simultaneous calls on portable or mobile telephones;' which may exceed the number of frequencies allocated to the company, multiple cells are set up at low -lying locations. These use topography to isolate the next - adjacent cells from one another, so that allocated frequencies can be re -used without interference with phones using the same channel some distance away. The Tukwila area has up to now been served by a single cell site, an antenna next to the water tower at the top of the hill west of Southcenter (3765 S. 164th St.), now in the City of SeaTac. This cell is currently being overloaded by call volume from the ScaTac Airport area, combined with the high volume from the 1 -511 -405 interchange area. Capacity needs to be increased by "subdividing" the single cell serving Tukwila, SeaTac and Burien into a number of smaller cells. These are what may be called "second generation" cell sites which, instead of a covering a broad area from a hilltop tower, are focussed at small, local areas from a shorter pole set in a geographic basin, using the edges of the basin to help limit signal carry to a defined area. ATTACHMENT E lof3 U S WEST NewVector - Riverton/Andover CUP's 1 July 1991 - Page Two ( ill i,.'• !L�[Iti , >c tl JUL 01 1991 ) .1 CITY OF TUKWILA PLANNING DEPT. Both the Riverton and Andover sites are a part of a general plan for subdivision of the former "Tukwila" cell; the existing Tukwila cell will be relieved of call volume in the Green and Duwamish Valley areas to the East of it, by these two proposed sites, and on the south and west peripheral service areas by new cells in Burien and Des Moines. The "Tukwila" cell site will then be turned down in power and made directional, to only serve the SeaTac area. Topographic breaks between most of these cells, the natural ridges, will be used to isolate signals and allow channel re -use; this will be illustrated at the hearing with graphics and maps. In answer to your question whether further cell sites are contemplated in Tukwila, the answer would be a tentative "no ", for the "second generation" sites. Mere may be some poor signal areas evident, once these new sites are on the air, which might require supplementation, possibly with a passive repeater or a small cell. An example might be Interurban Avenue, where it passes close to the hill north of City Hall; if the reduction of power at other sites deprives it of a strong signal, there might be a need to 1111 in from another location. Beyond this type of second generation design fine - tuning, new cells might be held off until 'Tukwila might generate sufficiently dense call traffic to go to a "third generation design ", such as is now being installed in downtown Seattle and Bellevue. Third generation sites tend to be quite low, such that virtually all are mounted on building rooftops, with equipment typically in the building. RADIO SIGNALS AND HEALTH ISSUES: The issue of potential health impacts of radio broadcast signals has arisen in a number of local communities, generally accompanied by considerable confusion between different types of electro- magnetic fields (EMF) and different frequencies of broadcasting and signal modulation. Literature cited by concerned citizens generally focusses on two types of field or radio signal: major facilities such as radar insta!!ations or major microwave relay points, or high-voltage electrical transmission liftes and other sources of EvIi which are modulated at an extremely low frequency (ELF). There is also, understandably, confusion between discussions of "EMF" and "ELF". Documented reasons for concern in these areas, plus misunderstanding of the term "microwave ", occasionally spills over as concern for all manner of Radio- frequency (RF) signals, most of which do not in fact have the characteristics of the sources of concern. Cellular radio, especially, is in a range of frequencies (formerly the upper end of the "Ui•IF' television band) which is a million to ten million times greater frequency than the area of concern for "ELF" health effects. In terms of the concern for very powerful radio -band generated EMF, the cell sites generate a max imum power which is lower by a factor of one millionth, compared to the military radar installations which are indicated as a concern. Power density is similar to that produced from the antenna of a single "Han" radio operator, who can broadcast at 1000 to 4000 watts "ERN" (effective radiated power, from antennas). Finally, though cellular is in the upper end of the "UHF" spectrum, close to the arbitrary boundary with "microwave" (one Gigal•lertz and above), there is not the potential for tissue damage from induced heating, which occurs with special frequencies tuned to the resonant frequencies of tissue molecules or (as in a microwave oven) the water molecule. Some tissue heating or other biological effects are a potential which has not been experimentally ruled out entirely, so the industry does maintain standards for maximum EMF strength for general safety. The closest comparison is with the major television antennae, which have been broadcasting in heavily populated areas for 40- 50 years, at similar frequencies but at power densities 100 to 1000 times greater than cellular phone antenna sites, without epidemiological indications of potential health effects. Volumes of technical studies and reports in these areas have been reviewed jointly over the past two years by the City of Seattle and by King County, assisted by technical staff in the Seattle - King County Health l)eparunent. Conclusions, embodied in draft ordinances now up for adoption, include setting maximum levels for electro- ragnetic field strength in the U1 -IF frequencies of 200 microwatts per square centimeter; these are 10 tunes to 100 times greater than the levels which this ATTACHMENT E 2of3 U S WEST NewVector - Riverton/Andover CUP's 1 July 1991 - Page Three nmontica [al.?, 9,6 _ JUL 0I 1991 CiTY OF TUKVVILA PLANNING DEPT. type of cell site will generate at or near the base of the pole. Detailed calculations and comparisons can be provided if desired. Should the City desire to check these general conclusions independently, 1 would recoinniend that you call Mr. Kurt Horner at the Seattle -King County Health Department, at 296 -4974. CELL SITE DESIGN: As noted elsewhere, the Riverton cell site search area was restricted to the center of the natural bowl at the south end of the Duwamish Valley. Ideal sites were within the Gateway area, though this area has generally developed as a .high - quality office /industrial park and had no landowners willing to accommodate a cell site. Sites on the periphery were investigated, and this site was chosen, utilizing a small property corner close to SR -99. There are a number of tall poles in the vicinity, including gas station signs and interchange light poles. The equipment building will be screened by low -level landscaping and fencing; the pole will to some extent be screened by existing trees, but more by the substantial distance between the site and the nearest residential zones on the hillsides to the West and South. The Andover site is in the middle of a developed industrial area, behind a building and facing a railroad spur and loading docks. The pole top will be visible within the industrial area but distance will diminish the scale of the pole from outside the industrial zones. The search area for the site was almost entirely within the East Andover industrial Park, where the hill north of City Hall blocks signal transmission between it and the Riverton site, yet a good transition between the two signals can be made along the crest of I -5 north of the 1 -405 interchange. 1 encourage follow -up questions and discussion of these materials. I would be happy to supplement them if needed for the staff report or at the public hearings. A joint hearing date on the two sites will facilitate the explanation of the cellular system design and how it has resulted in the location and characteristics of these two proposed sites. Enclosures cc: U S WEST New Vector - Ron Smith Yours very truly, John W. 1 -Iunt: ATTACHMENT E 3of3 RIVERTON CELL SITE SUPPORTING STATEMENT FOR 120' TOWER Cellular sites are designed to contain radio frequency (RF) signals to specific geographical regions. Terrain (earth) is the most effective obstacle next to trees and buildings to contain RF. Proper design allows the reuse of frequencies in another geographical area in the same metropolitan region without interference (crosstalk, dropped calls, etc.). Achieving this requires careful site location, antenna height above ground and antenna type. But, with reuse, more calls can be placed simultaneously than there are frequencies available. The Riverton cell site is placed to contain signals to an area approximately 2 miles in radius. In addition to being contained, signals from a cell must also propagate (travel) far enough to link up (overlap) with signals from neighboring cell sites. Precluding this, calls would become very noisy and possibly drop before handing off to the neighboring cell as the phone drove away from the initial cell. The 120' antenna height is required specifically for overlap to two neighboring cell sites. One is a proposed site in BurienU) the other is an existing site in McMicken Heights() I have attached a map inidicating the locations of all three cells. The solid red, blue and black lines are contours of equal signal from each of the three sites. These lines were obtained through actual field measurements. Each line indicates approximately where signal levels were measured to be -75dBm to -80dBm (a smaller negative number indicates a stronger signal). This is the level we desire to have calls handoff. If this level were lower, say - 85dBm, then the call would become noisy before handing off to a stronger signal. As the drawing shows the 75 -80dBm contours for Burien (red) and Riverton (black) do not overlap completely, thus handoffs from Riverton to Burien or v.v. will experience slight degradation in the shaded, area. Without testing a 100' height at Riverton I determined that that height was not useable due to the marginal signals measured at 120'. Usually sites located close to the base of a hill (such as this) require a higher tower to cover the top of the hill vs. a tower farther away from the base of the hill. Finally, containing signal from such a high height will be realized through the selective use of antennas. Coverage of the hill towards Burien will use a small, very directional antenna aimed towards the shaded area. Additional antennas will be installed at a lower height to cover north and east. The lower height will make up for the lack of sufficient terrain to obstruct the signal from traveling too far to the north and east. As these antennas are lower their signals will be more obstructed by trees and buildings. Therefore, it is necessary to radiate additional power, possible only__ _with. .the __use_. of higher gain antennas. Unfortunately, the h gher'the!,ga1i j; gbe l *nger the antenna, thus the 8' length. ri ". 3 1991 1 CHL5 1SlS [ OHS, INTO H 'Ar Ctlf. ) ' 1 "' 0 u 9.- `n ✓jl SN S 'AS CVC iSl9 AV HISS �� r it ® „,„ AS HLS� Hltf H y � AV ®� ▪ 1 n ��• ■ ` Ad d J N s 1. ' E 191V NI 4ANOlHA" VT/, S x 'AY l V S S AV H19C S — 2p R � rn F = ®® Iz R, AV H1SC �J�O�A.. _'AV > , prA` r � AV N1K �Si �=UUr, S AY OALC 1 P'CIFIG • e .° H r Y Hl' ` A,DAH AJ S' � I� x n �Q MASS .- .., G Ar K1SC artn tl anwAs HA L 9 'AS Hl! S 'AV HIS 'AY GNU S 'AV I en Mon AS ALP? NorMed P.O. Box 3644 Seattle, WA 98124 (206) 242-8228 August 16, 1991 NORMED -SHAW PARTNERSHIP Ms. Denni Shefrin Department Community Development City of Tukwila 6300 Southcenter Boulevard Tukwila, Washington 98188 i AUG 0 1991 Dear Ms. Shefrin, I recently received the Public Hearing Notice announcing the Planning Commission Public meeting scheduled for August 22, 1991. I would like to take this opportunity to voice my opposition to the application for a Conditional Use permit (Case Number 91 -3 -CUP: U.S. West Cellular Tower) submitted by US WEST New Vector Group, Inc. Currently we own the property directly across the street from the proposed tower. We also own six+ (6 +) acres a short block away, which is "home" to our wholesale distribution business and the planned development of other high quality office /warehouse building. When we originally constructed our current facilities, we were encouraged by the City of Tukwila, and particularly the Department of Community Development, to build a quality building as this was a "high visibility area ". At that time we were assured all future development would be continued at a high level of appearance and quality. This particular location is a key gateway to and from Interstate 5 and State Route 599. It therefore has a high degree of visibility and creates an important first impression for people exiting these thoroughfares into Tukwila. Not only would a tower at this location be cosmetically unattractive (actually downright ugly is the adjective that comes to mind), with the close proximity to these major interchanges, it is also a potential traffic hazard. wholesale medical supplies Ms. Denni Shefrin Department Community Development City of Tukwila August 16, 1991 Page 2 Sincerely, NORMED -SHAW PARTNERSHIP LMS :bka Lawrence M. Shaw General Partner Please also consider there are streams located directly across the street, as well as on our property, which have been designated a "Sensitive" by the City of Tukwila. We cannot help but question the desirability of locating a 120' tower in such an area. It would also appear that such a tower, if located on a higher elevation, would not require a height of 120' and would be less obtrusive. We strongly recommend that the Planning Commission encourage the applicant to find a more suitable location for this tower. AUG- 6 -91 TUE 16:55 A W RD EXPRESS FAX NO. 2062455595 P. 01 Post -It' - rand fax transmittal memo 7671 ' of awe■ �4 rem 11111111EMMIIIIIII Co. • Anil MEMORANDUM TO: TUKWILA PLANNING - DENNI SCHEFRIN FROM: JOHN HUNT RE: U S WEST TOWER HEIGHTS IMP HMINI AUG 06 199,E CITY OF 1 UKvvILA PLANNING DEPT. August 6, 1991 D I hope these serve to answer your questions regarding the height of the two proposed towers. The map which I showed you indicates the slight signal overlap which is necessary at the boundary of the broadcast areas or "cells '. These allow a smooth "handoff' from one antenna to the next, on a mobile r all, i.e., just as the call quality or clarity starts to degrade below an acceptable level, the mobile p' one begins to pick up rising signal strength from the next cell antenna, and Is automatically "hander •off" to the stronger, clearer signal by the monitoring computer. Insufficient overlap on the comps' ar plot or drive -test plots, based on equal contours of signal strength, means that the call clari ?, could degrade to where it would be difficult to understand, or the connection could be broken, befr,e the handoff occurred. CellOne (McCaw system) has two towers recently approved at 100' height each, in the same tV J areas of Tukwila (Green River Basin and Duwamish Basin). These were presumably justified to City of Tukwila on the same standard, i.e., needing the height so that there was some acceptable • gnat overlap at the tops of the intervening ridges between the two basins, including the hill behind Ity Hall and the ridges east and west of it. Because of the discussions with City staff in late 1990 and early 1991, U S WEST lost o ,portunities to locate the Riverton (Duwamish Basin) antenna towards the center or easterly side of tile basin, where CellOne is located. The current application was as close to the "height exception zone" as possible, but was still about 1/2 mile closer to the western ridge. This gives a steeper rising angle between the site and the shoulder of the ridge to the West, which means that a somewhat taller antenna would be needed to cover the Military Road corridor on the ridge shoulder, not reachable from the next antenna to the West (Burien). This tower therefore had to be set higher than CellOne's approved design. U S WEST's engineers estimated 150' as desirable, from computer simulation. However,. anticipating City concern on the height, I requested that they do an actual drive -test, with a radio raised on a boom truck. This test, summarized in the map and narrative from the project - engineer (forwarded to you earlier) confirmed the minimum height could be 120' rather than 150'. The Riverton antenna height was critical; once it was set, the Andover antenna height could be set to match it with minimum overlap. This could be achieved with a 75' tower, 25' lower than CeltOne's nearby tower at 100'. It seems reasonable that an equivalent signal . overlap will be achieved by the two tower pairs: CellOne's two towers already approved at 100' and 100', and U S WEST's two applications at 120' and 75'. Please call me at 947 - 0640 on Thursday or Friday if you have any further questions. Dear Ms. Shefrin: I n? Fr - ( • • ffl /'UGOG1991 Tukwila Planning Department " "— City Hall, 6300 Southcenter Boulevard Tukwila, WA 98188 Attention: Denni Shefrin Re: Conditional Use Permit Applications U S WEST NewVector, Riverton and Andover Cell Sit I am enclosing supplemental materials, which you requ preparation of the staff report for the above applications. Th overlapping cell sites serving Tukwila and surrounding communit concepts for the Riverton cell site, to enhance the major city "g of these are also included below. I hope that these will be help me if you need any materials further explained or supplement RIVERTON LANDSCAPE DESIGN: The three landscape concepts all include the special -pu inside a wood or brick -faced shell with a gabled, shake roof. somewhat, moving it further outside the direct line of site from movement in this direction might be possible, though it would hay orientation. The main differences are in building orientation and th screen the building. The remaining variables or tradeoffs whic (1) tall trees ( poplars, douglas firs) to screen the pole versus an the building and ramp; (2) some building/wall exposure for a sign height; and (3) a maximum time during which we might hold off with WSDOT, for extra space to extend the berm to the East. EAST ANDOVER HEIGHT: The attached map of coy different types and scales of test mapping: the "drive test" simulations for the other adjacent sites. The cells are color cod sketched out to show the general extent of coverage, to show th are not needed at this time. If you wish, for the hearing we wi roughed out and changed a bit, without time to clean it up. on its interpretation. Enclosures cc: U S WEST NewVector - Ron Smith ted last week to assist you in the include a larger scale map of the , and three alternative landscaping teway" area. Narrative descriptions 1, and that you will feel free to call se, prefabricated equipment building The pole is moved west and north e SR -99 off -ramp. Some additional to be analysed closely with building combination of wall and/or berni to City staff may want to discuss are open, low meadow concept between ersus maximum berm/planted screen nal berm design pending negotiations age areas was roughed out from two around Riverton and the computer d. The green - colored cells are only t other primary cells within Tukwila 1 prepare a cleaner version; this was me know if there are any questions Hunt & Associates (206) 624 -0846 2205 Seattle Tower Thiel & University Seattle, Washington 98101 August 6, 1991 Tukwila Planning Department City Hall, 6300 Southcenter Boulevard Tukwila, WA 98188 Attention: Denni Shefrin 9) .c13-CUf Re: Conditional Use Permit Applications U S WEST NewVector, Riverton and Andover Cell Sites Dear Ms. Shefrin: Hunt & Associates (206) 624 -0846 2205 Seattle Tower Third & University Seattle,Washington 98101 July 1, 1991 I am enclosing supplemental materials to assist you in the preparation of the staff report for the above applications. These include: (I) Photo-composites made up of photos of an existing NewVector "monopole" of similar size, taken at measured distances, mounted on background photos of the Riverton site taken at the same estimated distances, at various points around the vicinity. The Andover pole will not be visible for its full height from most areas, so no photo-composite was grade; the architectural elevation should adequately illustrate the scale. (2) A basic landscaping plan for the Riverton site, sent under separate cover by the architect; we would expect to use this as a starting point for discussion with Planning staff of the best landscaping to meet the City's objectives in this area. No landscaping plan is submitted for the Andover site, as it is surrounded by paved parking and loading area. A solid fencing screen could be used if appropriate, but landscaping would be difficult to install (see photos). (3) Description ‘f the need for the facilities, based on NewVector's system design and need for capacity e; _,ansion (following discussion). I hope that these will be helpful, and that you will feel free to call me if you need any materials further explained or supplemented. THE SYSTEM DESIGN: Cellular phone service is provided in "cells ", which are geographic service areas defined by local topography as reachable from a single "cell site" with line -of -sight transmission from the cell site's antennas. The system uses low -power FM radios to broadcast in allocated frequencies in the upper end of the UHF band. Where a market has a potential for a large volume of simultaneous calls on portable or mobile telephones, which may exceed the number of frequencies allocated to the company, multiple cells are set up at low -lying locations. These use topography to isolate the next- adjacent cells fran one another, so that allocated frequencies can be re -used without interference with phones using the same channel some distance away. The Tukwila area has up to now been served by a single cell site, an antenna next to the water tower at the top of the hill west of Southcenter (3765 S. 164th St.), now in the City of SeaTac. This cell is currently being overloaded by call volume from the SeaTac Airport area, combined with the high volume from the I -5 /I -405 interchange area. Capacity needs to be increased by "subdividing" the single cell serving Tukwila, SeaTac and Burien into a number of smaller cells. These are what may be called "second generation" cell sites which, instead of a covering a broad area from a hilltop tower, are focussed at small, local areas from a shorter pole set in a geographic basin, using the edges of the basin to help limit signal carry to a defined area. I 7,IS ftji,, criLl .aLl. L IuLO1 1991 Pr ANMtNC; rIFPT _ Tukwila Planning Department City Hall, 6300 Southcenter Boulevard Tukwila, WA 98188 Attention: Denni Shefrin 9) .c13-CUf Re: Conditional Use Permit Applications U S WEST NewVector, Riverton and Andover Cell Sites Dear Ms. Shefrin: Hunt & Associates (206) 624 -0846 2205 Seattle Tower Third & University Seattle,Washington 98101 July 1, 1991 I am enclosing supplemental materials to assist you in the preparation of the staff report for the above applications. These include: (I) Photo-composites made up of photos of an existing NewVector "monopole" of similar size, taken at measured distances, mounted on background photos of the Riverton site taken at the same estimated distances, at various points around the vicinity. The Andover pole will not be visible for its full height from most areas, so no photo-composite was grade; the architectural elevation should adequately illustrate the scale. (2) A basic landscaping plan for the Riverton site, sent under separate cover by the architect; we would expect to use this as a starting point for discussion with Planning staff of the best landscaping to meet the City's objectives in this area. No landscaping plan is submitted for the Andover site, as it is surrounded by paved parking and loading area. A solid fencing screen could be used if appropriate, but landscaping would be difficult to install (see photos). (3) Description ‘f the need for the facilities, based on NewVector's system design and need for capacity e; _,ansion (following discussion). I hope that these will be helpful, and that you will feel free to call me if you need any materials further explained or supplemented. THE SYSTEM DESIGN: Cellular phone service is provided in "cells ", which are geographic service areas defined by local topography as reachable from a single "cell site" with line -of -sight transmission from the cell site's antennas. The system uses low -power FM radios to broadcast in allocated frequencies in the upper end of the UHF band. Where a market has a potential for a large volume of simultaneous calls on portable or mobile telephones, which may exceed the number of frequencies allocated to the company, multiple cells are set up at low -lying locations. These use topography to isolate the next- adjacent cells fran one another, so that allocated frequencies can be re -used without interference with phones using the same channel some distance away. The Tukwila area has up to now been served by a single cell site, an antenna next to the water tower at the top of the hill west of Southcenter (3765 S. 164th St.), now in the City of SeaTac. This cell is currently being overloaded by call volume from the SeaTac Airport area, combined with the high volume from the I -5 /I -405 interchange area. Capacity needs to be increased by "subdividing" the single cell serving Tukwila, SeaTac and Burien into a number of smaller cells. These are what may be called "second generation" cell sites which, instead of a covering a broad area from a hilltop tower, are focussed at small, local areas from a shorter pole set in a geographic basin, using the edges of the basin to help limit signal carry to a defined area. U S WEST NewVector - Riverton/Andover CUP's 1 July 1991 - Page Two iiii L � ll�l M • JUL 01 1991 CITY OF TUKWILA PLANNING DEPT. Both the Riverton and Andover sites are a part of a general plan for subdivision of the former "Tukwila" cell; the existing Tukwila cell will be relieved of call volume in the Green and Duwamish Valley areas to the East of it, by these two proposed sites, and on the south and west peripheral service areas by new cells in Burien and Des Moines. The "Tukwila" cell site will then be turned down in power and made directional, to only serve the SeaTac area. Topographic breaks between most of these cells, the natural ridges, will be used to isolate signals and allow channel re -use; this will be illustrated at the hearing with graphics and maps. In answer to your question whether further cell sites are contemplated in Tukwila, the answer would be a tentative "no ", for the "second generation" sites. There may be some poor signal areas evident, once these new sites are on the air, which might require supplementation, possibly with a passive repeater or a small cell. An example might be Interurban Avenue, where it passes close to the hill north of City Hall; if the reduction of power at other sites deprives it of a strong signal, there might be a need to fill in from another location. Beyond this type of second generation design fine - tuning, new cells might be held off until Tukwila might generate sufficiently dense call traffic to go to a "third generation design ", such as is now being installed in downtown Seattle and Bellevue. Third generation sites tend to be quite low, such that virtually all are mounted on building rooftops, with equipment typically in the building. RADIO SIGNALS AND HEALTH ISSUES: The issue of potential health impacts of radio broadcast signals has arisen in a number of local communities, generally accompanied by considerable confusion between different types of electro- magnetic fields (EMF) and different frequencies of broadcasting and signal modulation. Literature cited by concerned citizens generally focusses on two types of field or radio signal: major facilities such as radar installations or major microwave relay points, or high - voltage electrical transmission lines and other sources of EMF which are modulated at an extremely low frequency (ELF). There is also, understandably, confusion between discussions of "EMF" and "ELF ". Documented reasons for concern in these areas, plus misunderstanding of the term "microwave ", occasionally spills over as concern for all manner of Radio- frequency (RF) signals, most of which do not in fact have the characteristics of the sources of concern. Cellular radio, especially, is in a range of frequencies (formerly the upper end of the "UHF" television band) which is a million to ten million times greater frequency than the area of concern for "ELF" health effects. In terns of the concern for very powerful radio -band generated EMF, the cell sites generate a maximum power which is lower by a factor of one millionth, compared to the military radar installations which are Indicated as a concern. Power density is similar to that produced from the antenna of a single "Ham" radio operator, who can broadcast at 1000 to 4000 watts "ERP" (effective radiated power, from antennas). Finally, though cellular is in the upper end of the "UHF" spectrum, close to the arbitrary boundary with "microwave" (one Gigal-lertz and above), there is not the potential for tissue damage from induced heating, which occurs with special frequencies tuned to the resonant frequencies of tissue molecules or (as in a microwave oven) the water molecule. Some tissue heating or other biological effects are a potential which has not been experimentally ruled out entirely, so the industry does maintain standards for maximum EMF strength for general safety. The closest comparison is with the major television antennae, which have been broadcasting in heavily populated areas for 40- 50 years, at similar frequencies but at power densities 100 to 1000 times greater than cellular phone antenna sites, without epidemiological Indications of potential health effects. Volumes of technical studies and reports in these areas have been reviewed jointly over the past two years by the City of Seattle and by King County, assisted by technical staff in the Seattle - King County Health Department. Conclusions, embodied in draft ordinances now up for adoption, include setting maximum levels for electro-magnetic field strength in the UHF frequencies of 200 microwatts per square centimeter; these are 10 times to 100 times greater than the levels which this U S WEST NewVector - Riverton/Andover CUP's 1 July 1991 - Page Three CELL SITE DESIGN: As noted elsewhere, the Riverton cell site search area was restricted to the center of the natural bowl at the south end of the Duwamish Valley. Ideal sites were within the Gateway area, though this area has generally developed as a high- quality office/industrial park and had no landowners willing to accommodate a cell site. Sites on the periphery were investigated, and this site was chosen, utilizing a small property corner close to SR-99. There are a number of tall poles in the vicinity, including gas station signs and interchange light poles. The equipment building will be screened by low -level landscaping and fencing; the pole will to some extent be screened by existing trees, but more by the substantial distance between the site and the nearest residential zones on the hillsides to the West and South. The Andover site is in the middle of a developed industrial area, behind a building and facing a railroad spur and loading docks. The pole top will be visible within the industrial area but distance will diminish the scale of the pole from outside the industrial zones. The search area for the site was almost entirely within the East Andover Industrial Park, where the hill north of City Hall blocks signal transmission between it and the Riverton site, yet a good transition between the two signals can be made along the crest of I -5 north of the I -405 interchange. I encourage follow -up questions and discussion of these materials. I would be happy to supplement them if needed for the staff report or at the public hearings. A joint hearing date on the . two sites will facilitate the explanation of the cellular system design and how it has resulted in the location and characteristics of these two proposed sites. type of cell site will generate at or near the base of the pole. Detailed calculations and comparisons can be provided If desired. Should the City desire to check these general conclusions independently, I would .recommend that you call Mr. Kurt Homer at the Seattle -King County Health Department, at 296 -4974. Enclosures cc: U S WEST New Vector - Ron Smith } •' Yours very truly, JUL 01 1991 CITY OF TUKVVILA PLANNING DEPT. RIVERTON CELL SITE SUPPORTING STATEMENT FOR 120' TOWER Cellular sites are designed to contain radio frequency (RF) signals to specific geographical regions. Terrain (earth) is the most effective obstacle next to trees and buildings to contain RF. Proper design allows the reuse of frequencies in another geographical area in the same metropolitan region without interference (crosstalk, dropped calls, etc.). Achieving this requires careful site location, antenna height above ground and antenna type. But, with reuse, more calls can be placed simultaneously than there are frequencies available. The Riverton cell site is placed to contain signals to an area approximately 2 miles in radius. In addition to being contained, signals from a cell must also propagate (travel) far enough to link up (overlap) with signals from neighboring cell sites. Precluding this, calls would become very noisy and possibly drop before handing off to the neighboring cell as the phone drove away from the initial cell. The 120' antenna height is required specifically for overlap to two neighboring cell sites. One is a proposed site in BurienU) the other is an existing site in McMicken Heights( I have attached a map inidicating the locations of all three cells. The solid red, blue and black lines are contours of equal signal from each of the three sites. These lines were obtained through actual field measurements. Each line indicates approximately where signal levels were measured to be -75dBm to -80dBm (a smaller negative number indicates a stronger signal). This is the level we desire to have calls handoff. If this level were lower, say - 85dBm, then the call would become noisy before handing off to a stronger signal. As the drawing shows the 75 -80dBm contours for Burien (red) and Riverton (black) do not overlap completely, thus handoffs from Riverton to Burien or v.v. will experience slight degradation in the shaded, area. Without testing a 100' height at Riverton I determined that that height was not useable due to the marginal signals measured at 120'. Usually sites located close to the base of a hill (such as this) require a higher tower to cover the top of the hill vs. a tower farther away from the base of,the hill. Finally, containing signal from such a high height will be realized through the selective use of antennas. Coverage of the hill towards Burien will use a small, very directional antenna aimed towards the shaded area. Additional antennas will be installed at a lower height to cover north and east. The lower height will make up for the lack of sufficient terrain to obstruct the signal from traveling too far to the north and east. As these antennas are lower their signals will be more obstructed by trees and buildings. Therefore, it is necessary to radiate additional power, possible on .y_ith_...tg h use of higher gain antennas. Unfortunately, the ha w ghei?!,ti0 " �;c'a 1 i' g e l,n er the antenna, thus the 8' length. i �' ` •...L 11 1' L.�... .l!!t. 2 3 1997 y H171 = = O R R" June 19, 1991 Dear Mr. Hunt: Sincere y Ann Siegen aler Assistant Planner cc: File CITY OF TUKWILA 6200 SOUTIICENTER BOULEVARD, TUKWILA, WASHINGTON 98188 Mr. John Hunt Hunt & Associates 1218 Third Avenue, Suite 2205 Seattle, WA 98101 RE: U.S. West SEPA and Conditional Use Permit Applications When you submitted your applications on June 14, we spoke about some additional materials which would be needed in order to complete your application review. The materials you agreed to submit are as follows: 1. A landscape plan, showing enhancement of the site. 2. A photo montage or overlay tower appears on the site. 3. (Optional) Photos of other cellular phone towers similar to the one proposed, showing the pole and top antennae. 4. (Optional) Photos of the site and vicinity, or you may use photos already submitted by Mr. Wendell Clark. Your Planning Commission hearing date is tentatively scheduled for August 22, 1991. To retain a place on that agenda, please submit the above materials no later than 5:00 p.m. Monday, July 1, 1991. Please let me know if you have any questions concerning the project review. PHONE q (206) 433.1800 Cary L. VanDuscn, Mayor any proposed screening or showing how the proposed FIRST AMERICAN TITLE INSURANCE COMPANY 2101 0'l. FOURTH AVE ;TT ?E, SUITE BOO SEATTLE, E, WA SHLi3GTON 5 206-7n-C400 TITLE OFFICER: D. MICHAEL GILBE,4:TSON TITLE CH ICER: TOM UHOOPF,; '. U,$.?, ST NEW VECTOR GROUP REAL F ' T .. t tt LL((titr,Ni 15:35 • :: t '-" ST EASTGATE WAY R;::..l AA. HIN_-TON 9SS0CS fr. Post -{!," Li... ano T ti ?i antim,T .. ' ; i e of Dogo , * _ ORDER NO, 1958;38 - '3 YOUR NO. ALPHA acA 1 IVERTON ) CLARK 1. r,r rECTI` DATE: DECEMBER 13, 1990 AT 7:3C A.M. PROPOSED Lf.fS'. '7: 'rV.iiiDELL CLARK Pr;T:IC:V /POUTC'I S TO BE ISSUED: AMOUNT P1k.MIUM TAX LEASEHCI, RATE OWNER'S F1TANDARD COVERAGE $25,O0O,o0 :24O.0O $19.68 3. THE ESTATE OR INTEREST IN THE LAND DESCRIED OR REFERRED TO IN SCHEDULE C AND COVERED HEREIN IS FEE SIMPLE AND TITLE Try IS 2 THE FE TI " HEREOF VESTED TN: THEI•.E h. EFFECTIVE F HEREO DATE W=ELL G. CLARK AND CLAUDIA B. CLARK, HUSBAND AND WIFE. r'?.G) OF 5 -/ij:J JUN 1 0X91 �(a l •1 yr i up.,.vi■-•► fin.A rirpT. 5 r PHIS SKETCH A COURTESY ONLY . EY f:IRST ANIERIC'AN TITLE 1'..:;s:'!:,..AN.:512 COMPANY '`'‘•••• •• • • .• AND IT IS NOT A PART 01 eiN'Y fITI.E COMMITMENT OR POLIC•;Yi37 FOR T'HE F'Urt 1IS C. OF ASSiSTiNb Ih; f)f..,.2.71ru 1 E PREMIES ALL FFi...TI+N".3 THE ''R•Oi-}E.ST'l. 1:;r. • 1.1PCN TrilS SKETCs POR T o S OF PRO PERT., j•'-`.i.:4:.',"‘"Y 3S A.'0:)Lr.'.1ED FOR T'F cj / • c / / - 12: s• • j • i / :,. ..,;...\ • ,,-- .- ,,, : . \ • C 4 • / ••• • \ / •. 4 %.' •0 i • I••• .?, ., ;•• 4t %. 47. • ' P \ \ - •...•..1,..-- , 1, 4 .•'N''' 4 / 0 / , , . ,. • ..,,,•1 / \ r. ,,:., 4 , ,I , . \ / t ,- - ,/ I / •., C * N., N. / / - N, • ... s. • ''.. ••• ../. < A , • • ,.. .., .....:, • . "7 X ‘....• ••:, . i 1'7 / %... •_ 0 ..." \ •• • s . ,•- . , / i /1 N. . i: : Z •C , • i / s .,.. (I;) \ . / ,,,,,• \ , _ ..... . ,... ... \ / • . / . Y;O 4 , .1 \ '''' 47 ' ...t. • x ..;:/••. 0.1 4 :..t. ''. N A • • .../ •. \ \ •,,, - • / . , ..1":•—•-„, ..••• / / .. \ '‘,, - \ I .:•, c. :) ' 1 Ci \ . . -■••••••:' /,., '•; . %,- . ‘.„.0- / \ ,.., 1 .. -:..1,-7.-,, I. ."'•-•'<...".?.--(.... 4.. \ • ...e / • . 1..• •• •,. / ..•._ .4 ‘V ` • ..7 . V s \--%. .. / \ —•.• \ '..• • . \ t.'" ...';', • .' ii',4 . •'' ‘• '''' 1,4' ' •, , r / 1- i Z. • • ::/ 1:1 • • \ ...• \ r • N .0;' 0 \-..%71, .1., ,, ...: ; c •,%-.. ‘ 4,, \ 4c. ,:•., \". ..‹,... ..,, , N. -•, . • • \<- ::'-': •' \ . ./.. ,....... ,•••• ; • /- •, 1:0 • V / • • / .4... •••: ;•. '1 • I•4 • .• t .4 • ' • • • r • !-••• • .• • 4' e •?..v • /, 7 .1; '• , \ • • I. ./ : ••••,: • 1, ••••• • • • 0 1 ' - • /, •■• , s •• •• •,, :.-' • ./ ' • . • . / • . \ , ••■ • * , 1...., ., . .„.„. '' / • f 1 .. . 1.1 . , . I d '. •• 'NI Alt • • ' '''' -- 0:• .... •,•: I '. I jell _ :, 4 c.3: t • •:• / '' ••••‘ ' , *".-',. ....•,-.. tk, . • $ . \ ••`,. `Ni . _ ., I - ••\ '- la 1 .... ii....:2„.2....L i!•:.. •, ,c. ''.' •, . _„>+• • • ;' - ' ' • - • r. 4 ■•• . .• ....•- r • %. 0. • ....' ••:• Z" ..*: n ..• r :"; • ...- ,.. , - , . • - • 041"......," ' ....,...,: . 1 .4 . ff ' ,.-.. •• ••:2 1. 1 • . :: - .,. t '''.',.; ' .. J - .■ 4 t , ...., _•., ' I , - / ,, -.• e ' .•, ••• .., . . - • • ..—t7 • •• • • , \ • LS' • % •••■■"` 1 • SCHEDULE B - SECTION REQUIREMENTS THE FOLLOWING ARE THE REQUIREMENTS TO BE COMPLIED WITH: ITEM (A) PAYMENT TO CR FOR THE ACCOUNT OF THE GRANTORS OR MORTGAGORS OF THE FULL CONSIDERATION FOR THE ESTATE OR INTEREST TO BE INSURED. ITEM (B) PROPER INSTRUMENT (S) CREATING THE ESTATE OR INTER:F 0 BE INSURED MUST BE EXECUTED AND DULY FILED FOR RE ' SCHEDULE B - SECTION GENERAL EXCEPTIONS THE POLICY OR POLICIES TO BE ISSUED WILL CoNTII1 EXCEPTIONS TO THE FOL;1OWING UNLESS THE SAME ARE DISPOSED OF I O THE SATI:? FACTION OF THE COMPANY. A. TAXES OR ASSESSMENTS WHICH ARE NOT SHOWN AS EXISTING LIENS BY THE RECORDS OF ANY TAXING AUTHORITY THAT LEVIES TAXES OR ASSESSMENTS ON REAL PROPERTY OR BY THE PUBLIC RECORDS. B. ANY FACTS, RIGHTS, INTERESTS, OR CLAIMS WHICH ARE NOT SHOWN BY THE PUBLIC RECORDS BUT WHICH COULD BE ASCERTAINED BY AN INSPECTION OF SAID LAND OR BY MAKING INQUIRY OF PERSONS IN POSSESSION THEREOF, EASEMENTS, CLAIMS OF EASEMENT OR ENCUMERANCES WHICH ARE NOT SHOWN BY THE PUBLIC RECORDS. D. DISCREPANCIES, CONFLICTS IN BOUNDARY LINES, SHORTAGE IN AREA, ENCROACHMENTS, OR ANY OTHER FACTS WHICH A CORRECT SURVEY WOULD DISCLOSE, AND WHICH ARE NOT SHOWN BY PUBLIC RECORDS. E. UNPATENTED MINING CLAIMS; RESERVATIONS CR EXCEPTIONS IN PATENTS OR IN ACTS AU_HORIZING THE ISSUANCE THEREOF; WATER RIGHTS, CLAIMS OR TITLE TO WATER. F. ANY LIEN, OR RIGHT TO A LIEN, FOR SERVICES, LABOR OR MATERIAL THERETOFORE OR HEREAFTER FURNISHED, IMPOSED BY LAW AND NOT SHOWN BY THE PUBLIC RECORDS. G. DEFECTS, LIENS, ENCUMBRANCES, ADVERSE CLAIMS OR OTHER MATTERS, IF ANY,, CREATED, FIRST APPEARING IN THE PUBLIC RECORDS OR ATTACHING SUBSEQUENT TO THE EFFECTIVE DATE HEREOF BUT PRIOR TO THE DATE THE PROPOSED INSURED ACQUIRES OF RECORD F,OP. VALUE THE ESTATE OR INTEREST OR MORTGAGES THEREON COVERED F TOTS COMMITMENT. H. INDIAN TRIBAL CODES OR REGULATIONS, INDIAN TREATY OR ABORIGINAL RIGHTS, INCLUDING EASEMENTS OR EQUITA3LE SERVITUDES, PAGE 2 OF SCHEDULE B — SECTION 2 CONT. SPECIAL EXCEPTIONS ORDER NO. 195838 -3 YOUR NO. ALPHA SEA RIVERTON I 1. DEED OF TRUST AND THE TERMS AND CONDITIONS THEREOF: 2. DEED OF TRUST AND THE TERMS AND CONDITIONS THEREOF: 5. GRANTOR: WENDELL G. CLARK AND CLAUDIA B. CL HUSBsANn A WIFE; AND CURTIS R. SQUIRES AND DIANA LYNN SQUIRES, HUSBAND AND WIFE TRUSTEE: NORTHWESTERN TITLE COMPANY, A CORPORATION BENEFICIARY: DONALD R. SHANNON AND SHIRLEY A. SHANNON, HUSBAND AND WIFE ORIGINAL AMOUNT: $170,000.00 DATED: SEPTEMBER 1956 RECORDED: OCTOBER 8, 1986 RECORDING NO.: 5610080 389 GRANTOR: WENDELL CLARK AND CLAUDIA CLARK, HUSBAND AND WIFE TRUSTEE: TICOR TITLE INSURANCE COMPANY OF CALIFDRNIA, A CORPORATION BENEFICIARY: DONALD R. SHANNON AND SHIRLEY A. SHANNON, HUSMND AND WIFE ORIGINAL AMOUNT: $30,000.00 DATED: JUL Y 5, 1989 RECORDED: JULY (3, 19E9 RECORDING NO.: 8907060523 3. CONTRACT OF SALE AND THE TERMS AND CONDITIONS THEREOF SELLER: WENDELL AND CLAUDIA CLARK PURCHASER: LARRY BUTLER DATED: MAY 6, 1990 RECORDED: AUGUST 20, 1990 RECORDING NO.: 9008200132 EXCISE TAX RECEIPT NO.: E1151804 PURCHASER'S INTEREST IS PRESUMPTIVELY SUBJECT TO THE COMMUNITY INTEREST OF ANY SPOUSE IF MARRIED ON OR SINCE MAY 6, 1990. 4. EXAMINATION OF THE RECORDS DISCLOSES NUh -_... .. S MATTERS f PENDING AGAINST PERSONS WITH NAMES SIMILAR TO LARRY BUTLER. THE ENCLOSED IDENTITY AFFIDAVIT SHOULD EE COMPLETED AND RETURED TO THIS COMPANY FOR CONSIDERATION uIgE_-TQ _CI,cSXNG. UNRECORDED LEASEHOLDS, IF ANY, RIGHTS OF VENDORS AND ' SECURITY AGREEMENTS ON PERSONAL PROPERTY AND RIGHTS OF TENANTS TO REMOVE TRADE FIXTURES AT THE EXPIRATION OF TEE TERM. PAC:!: OF 5 SCHEDULE B - SECTION 2 CONT, 6. RELINQUISHM.NT OF ALL EXISTING AND FUTURE :.;.i' ?'S TO LIGHT VIEW, AND AIR AND RIGHTS OF ACCESS TO AND Y' R;, THE STATE HIGHWAY TO BE CONSTRUCTED ON LANDS CONVEYE..'" INSTRUMENT: NOTE A: GENERAL TAXES FOR THE YEAR 1990 WERE PAID IN THE AMOUNT OF $311.09 FOR TAX ACCOUNT NO. 734920-0345-05. THE ASSESSED VALUE FOR LAND AND IMPROVEMENTS WAS $24,000.00 AND NINE, RESPECTIVELY. NOTES: 1. A FEE WILL BE CHARGED UPON THE CANCELLATION OF THIS COMMITMENT PURSUANT TO THE WASHINGTON STATE INSTJRANCE CODE AND THE FILED RATE SCHEDULE OF THE COMPANY. 2. EXCEPTIONS A THROUGH H SHOWN IN SCHEDULE B HEREIN WILL BE OMITTED IN ANY FORTHCOMING ALTA LOAN POLICY. RECORDED: AUGUST 3, 1972 RECORDING NO.: 72 0803 03 63 IN FAVOR OF: THE STATE OF WASHINGTON PAGE 4 OF 5 ORDER NO. 195933 -3 YOUR NO. ALPHA SEA RIVERTON I SCHEDULE C ORDER NO, 195038 -3 YOUR NO. ALPHA SEA RIVERTON I THE LAND REFERRED TO IN THIS COMMITMENT IS SITUATED IN THE STATE OF WASHINGTON, COUNTY OF KING AND IS DESCRIBED AS FOLLOWS ALL THAT PORTION FOLLOWING DESCR_: ' 3 ARCEL "A" LYiN': SOUTHWESTERLY OF 'Tr: 4LOWING DESCRIBED BEGINNING AT A POINT OPPOSITE HIGHWAY ENG.L,L.E-;: S STATION 44+30 ON ' 2HE FA LINE SURVEY OF PRIMARY STA 7. F':IGHWAY NO. 1 (SR99), ;CATER INTERCHANGE TO SOUTH 112TH STREET AND 435 FEET SOITHWESTERLY THEREON; THENCE SOUTH 26'20 EAST 280 FEET MORE OR LESS TO A POINT 30 FEET NC' T''!WESTERLY WHEN MEASURED RADIALLY, FROM THE RELOC, SOUTH "? STREk.' CENTERLINE OF SAID HIGHWAY PLAN. AND THE END LINE &= CRIPTION . PARCEL A: LOTS 11 AND 12, BLOCK 5, RIVERTON .REPEAT OF LOTS I THROUGH 5, FOSTO.RIA GARDEN TRACTS, ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 13 OF PLATS, PAGE 40, RECORDS OF KING COUNTY, WASHINGTON. SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON. PAGE 5 OF 5 • CITY OF TUKWILA DEPARTMENT OF COMMUNITY DEVELOPMENT 4. PROPERTY OWNER AFFIDAVIT OF OWNERSHIP Address: Union Avenue SE, #200 Phone: 271 -5767 CON DIT :ANAL km 1 3 1991 C;T Y OF TUKvVI -A 6300 Southcenter Bou evard; 7'ukwlla ; WA Telephone: (206) 431 -3680 1. BRIEFLY DESCRIBE YOUR PROPOSAL: Locate a 12' x 36' prefabricated equipment building and a 120' tall metal pole to carry 9 cellular phone base station antennas 2. PROJECT LOCATION: (Give street address or, if vacant, indicate lot(s), block, and sub- division; or tax lot number, access street, and nearest intersection) 13130 44th Avenue South, SE end of site behind existing industrial building, adjacent tCl the SR -99/ 133rd St interchange. Quarter: NE Section: 15 Township: 23 Range: 4 (This information may be found on your tax statement) 3. APPLICANT:* Name: U S WEST NewVector Group, Inc./ Agent: John W. Hunt Address' P.O. Box 91211, Bellevue, WA 98009 -2211/ 1218 3rd Ave #2205 Phone: 450 -8100 / WA 98101 624 -084 624 -0846 Date. 13 June 1991 Signature: * The op . t is the person whom the staff will contact regarding the application, and to who all notices and reports shall be sent, unless otherwise stipulated by applicant. Name: Clark Mechanical, Inc. c/o Wendell G. Clark I /WE,[signature(s)] , � L4,....(A4 /_ swear that I /we are the owner(s) or contract purchaser(s) of the property involved in this application and that the foregoing statements and answers contained in this application are true and correct to the best of my /our knowledge and belief. Date: „�,c,-,,..e.- /// ) 9 'CONDITIONAL USE API( :ATION Page 2 5. PRESENT USE OF PROPERTY: Vacant field behind industrial building 6. PROPOSED CONDITIONAL USE REQUESTED (from list in TMC 18.64.020): (11) Radio, television or observation stations and towers 7. ADJACENT North: Industrial /storage with contractor's office LAND South: Freeway interchange USES East: West: small single - family house 8. DETAILED DESCRIPTION OF PROPOSED USE (for example, describe the manufactur- ing processes used, wholesale /retail /warehouse functions, outside storage of goods or equipment or other information which will facilitate understanding of the activities you proposed to develop on this site): The building will contain low -power FM -band radios (800 -900 MHz bands @ 100 watts output from antenna) and computers to control channel usage for mobile or portable phones in the immediate area (1 -2 mile radius). Backup batteries for short power outages in main room of building, diesel generator for extended power outage use in SepdLdl. u dt. end of building, wiUi 1.i5 ydllorla diesel fuel, 111 i uldted chamber with "spill pan" floor to contain all liquids within building. 9. Will the conditional use be in operation and /or a building to house the use be started within a year of issuance of the permit? Yes 10. Describe the manner in which you believe that your request for a Conditional Use Permit will satisfy each of the following criteria as specified in TMC 18.64.030 (attach additional sheets, if necessary). A. The proposed use will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity of the proposed use or in the district in which the subject property is situated. RESPONSE: The operation will create very little traffic (1 visit per month by technician plus any repar visits). Noise will be less than ambient highway noise. No proce55es will create impacts off -site or hazardous emissions or spills. Radio frequencies and signal strength will not interfere with other electronic processes or equipment in the industrial area, nor create any health risks for persons living or working in the area. B. The proposed use shall meet or exceed the performance standards that are required in the district it will occupy. RESPONSE: Applicants will discuss structure colors and site screening with City staff and will follow specifications recommended by staff and agreed to by BAR. 'CONDITIONAL USE APK CATION 10. (continued) Page 3 C. The proposed development shall be compatible generally with the surrounding land uses in terms of traffic and pedestrian circulation, building and site design. RESPONSE: Extremely low traffic, will not generate or impede pedestrian traffic. Building and site design will be of higher quality than existing adjacent development D. The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. RESPONSE: The site is in a Manufacturing area where existing and future land uses are least likely to conflict with it (no consistent, existing pattern). The site uses a remote property remnant on a highway interchange, generally unsuited to and therefore not affecting or displacing other Manufacturing uses. The use is located in an area where the view from the surrounding residential areas (ni.11side to West) already includos similar, pole --typo vicual elemonts. E. All measures have been taken to minimize the possible adverse impacts which the proposed use may have on the area in which it is located. RESPONSE: See siting factors noted above; the pole height is the minimum necessary to serve the local area with this utility service from a single site, without proliferation of such sites in the same geographic area and visual area. DATE: March 4, 1991 TO: Ron Smith DRUM: The Schuster Group, Inc. RE: SEA Riverton The following is a description of the status of all properties in the Riverton area that would provide a feasible location for a 1J S WEST NewVector cell site, and would meet the zoning requirements for the City of Tukwilla: 1) Kaiser Gateway Assoc. Willing to roof mount antennas at height of approximately 15 feet, not willing to allow for additional height. 2) Boeing Employees Credit Union Not Interested. 3) Bedford Development Company No Room. 4) Willard Levine No Room. 5) Mobile Oil Corporation Not Interested. 6) Unocal Corporation Not Interested. 7) Texaco Inc. Not Interested. 8) Donald Wilson No Room. 9) Denny's Inc. Not Interested. Based on our research of the area, there are no properties within the height exemption area that would provide an adequate location for a NewVector cell site. If NewVector is to build a cell site in the Tukwilla area, it will be necessary to pursue zoning relief in the areas surrounding the height exemption area. If you have any questions or comments, please contact us at 562 -3054. Thank you. KVE iiri S TjQ?OVP rreperty ownex Status e_e. M E M O R A N D U M P!l ftnv 704f.5 . T pI1o",,p WA QSf)f17 • (7l61 567.1054 1 NORMANDY . PARK n Ptir , • 1•111 anc a) /141 -4 "Ng- oRI "7°. 4g REM odic �� ""11111Ina !! 1111:1111171g --"I ):V!__ S. slaw VICINITY MAP ALI IOMIN$ t � 5 C 2 } u a ti a cE(.LUVA AO rwNNA C7) W/ EITH EL -(n 0 . , a f~ (Auly. d L u ' hNEar L SC ALE: 1/16" = 1%0" `it W 1 A 3-4F 7'e'NNAS 7S . 0 11111 MIMI 199' ELEVATION •0•T)I SITE PLAN IOW 1 1 • Cr ' \ \ • 11� • FRG HIGHWAY I∎ (133 p4 S i - RELOG • r111-0IK c" - IAnr •c..aE AREA MAP VICINITY MAP LEGAL DESCRIPTION 100 3 A 7, MO II • 15 !ROCK S OVERTON WIN 0710151 TO S. 30OOW G3001 TUCKS ACCORDING TO PLAT 3ICOI010 IN VOLUAII 15 Of MAIL TAU 10. IN KING COUNTY, WALNNGION, DRAWN BY IAT'E: l - PEVISION: SHEET: 5 -<1 1 0.2 L @Fade JUN 1 01991 Grp Y uF TUKWILA PLANNING DEPT. i .{'ean r L .IY IT NCR n y• .A rano TY-T LJ CROSS SECT ION \J w.+ ri:.w L.01rr WOG ...Mr .w. VT R•..F11 \jr .... .r ... ELEVATIONS FLT fW mmo r VW Mt IMAM ...o- '. ..m •■■ Tq� •• .�• us Norm • L It • L r Oki FOUNDATION PLAN M 44 Dim owe r ....•Y OYKM11 r�'/y�r r B / R Vr •ra SOYA Pr• ..a eit 110 11111111 ELEVATION OF TOWER & EQUIPMENT BUILDING =cwa: T/•r • r -0- z• I < g ;. a .. 0 ; << 1:7-• a 1 - z W 0 ▪ z 6 C 0 • _ S W m .rr._ -- —G. THE yi _y �.. T 11.E SC...-HUSTER GROUP INC. DATE: March 4, 199] TO: Ron Smith FROM: The Schuster Group, Inc. RE: SEA Riverton M E M O R A N D U M The following is a description of the status of all properties in the Riverton area that would provide a feasible location for a U S WEST NewVector cell site, and would meet the zoning requirements for the City of Tukwilla: Pr4perty Owner Status 1) Kaiser Gateway Assoc. Willing to roof mount antennas at height of approximately 15 feet, not willing to allow for additional height. 2) Boeing Employees Credit Union Not Interested. 3) Bedford Development Company No Room. 4) Willard Levine No Room. 5) Mobile Oil Corporation Not Interested. 6) Unocal Corporation Not Interested. 7) Texaco Inc. Not Interested. 8) Donald Wilson No Room. 9) Denny's Inc. Not Interested. Based on our research of the area, there are no properties within the height exemption area that would provide an adequate location for a NewVector cell site. If NewVector is to build a cell site in the Tukwilla area, it will be necessary to pursue zoning relief in the areas surrounding the height exemption area. If you have any questions or comments, please contact us at 562 - 3054. Thank you. KVE P CI flj 7(14r,5 • 'Rp11t ?slip WA 4R0f17 • 0(161 S67-1054 � � "t t GT I o v exs19 ereed ' a : • .t .• Ardi".,1 ,e!.??,e , • , • • EEL. 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