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HomeMy WebLinkAboutPlanning Comm Reports/1993/10/13 (6) City Planning Commission Agenda Item for Meeting of October 13, 1993 Page #1 4. PUBLIC HEARING: Conditional Use Permit PCC-94-06: Request to Construct a 60' Cellular Antenna and Communications EQuivment Shelter at 775 Anita Street in the IL-P Zone - AVDlicant: U.S. West Cellular A. BACKGROUND 1. U.S. West Cellular is proposing to construct a 60' high cellular antenna and a communications equipment shelter in the IL-P Zone located at 775 Anita Street approximately 750 feet east of Interstate 5 adjacent to the southern property line behind the main building located at this address (APN 622-102-33) (see Attachment "A"). 2. On August 8, 1993, the Environmental Review Coordinator detennined that this project is generally exempt from the provisions of the California Environmental Quality Act per Section 15061(b)(3) (General Rule). B. RECOMMENDATION Adopt Resolution No. PCC-94-06 recommending that the City Council approve conditional use permit PCC-94-06 based on the findings and subject to the conditions contained in the attached draft City Council Resolution. C. DISCUSSION 1. Adjacent Zoning and Land Use: Site North South East West ZONING IL-P R2-P IL-P IL-P IL-P LAND USE Manufacturing Residential Warehousing Manufacturing Warehousing 2. Existing Site Characteristics: The site currently contains a 46,080 sq. ft. industrial building containing various types of industrial/manufacturing uses along with approximately 85 parking spaces and two trash enclosures. Access to the site is from two driveways, one at the northeast and one at the northwest corners. The northeastern driveway is shared with the property immediately to the east. Immediately south of the site is the RTA warehouse/truck tenninal, while to the west and east existing industrial/manufacturing buildings exist. Several residential structures are located across Anita Street to the north. ~-I City Planning Commission Agenda Item for Meeting of October 13, 1993 Page #2 3. Proposed Use: The applicant is proposing to construct a 60' high cellular telephone antenna, topped by a 5 foot antenna platform and a 432 sq. ft. equipment structure along the southern property boundary behind the existing industrial building. The monopole and equipment structure will be surrounded by a six foot high protective fence. The antenna support structure will also have digital radio dish antennae placed on it at various heights above ground level. These digital radio dish antennae will range in size from two to eight feet in diameter. Depending on the size, anywhere from two to four of these dish antennae may be placed on the monopole. A six foot chain link fence topped by strands of barbed wire will be installed around the base of the monopole and equipment shelter for security purposes. 4. Similar Establishments: On May 18, 1993, the Planning Commission and City Council approved PCC-93-16, a conditional use permit submitted by PacTel Cellular for a 60' high cellular antenna, six foot high fence, and a communications equipment shelter in the IL-P Zone. The PacTel site is on the adjoining parcel to the west located at 779 Anita Street immediately adjacent to Interstate 5 at the southwest corner of APN 622-102-12. The PacTel site is approximately 550 feet southwest of the proposed U.S. West Cellular site. See Attachment "B" for the location of the Pac Tel antenna and the proposed location of the U.S. West antenna. PacTel Cellular has submitted for and received Building Department approval to construct their antenna and intends to have the antenna constructed and operating by November 1, 1993. D. ANALYSIS The siting of a cellular antenna is most appropriate in an industrial area. Since the adjoining industrial structure is more than 25 feet in height and is used for manufacturing or warehousing purposes, the antenna and equipment shelter will not be out of character. In addition, the antenna will be located to the rear of the main building away from the residential area across Anita Street approximately 450 feet to the north. The top of the antenna will be visible from the residential area, but the surrounding trees and the color (galvanized gray) will assist in blending it into the background. Painting the antenna galvanized gray is a condition of project approval. F:\HOME\PLANNING\USWEST\9406PC. RPT .y, 2.. City Planning Commission Agenda Item for Meeting of October 13, 1993 Page #3 Another condition of project approval is that the maximum height of the antenna with the antenna platform is 60 feet. The platform is shown on the elevations as being atop the 60 foot monopole to a height of about 65 feet. Because the PacTel antenna was approved to a maximum of 60 feet above ground level to the top of the antenna platform, u.s. West is conditioned to the same height. Each cellular company has the option of placing 15 foot whip-type antenna atop the platform along with dish-type antenna on the monopole. u.s. West will not have personnel present on-site on a permanent basis since there are no living/office spaces proposed as part of this project. The only time anyone will be present is during construction and for periodic maintenance. Attachment "C" describes the "clients" who will use this cellular system. Basically, u.s. West wishes to place the antenna at this location because of the need to serve as many cellular phone users as possible and to serve the roadside emergency call boxes located on Interstate 5 and emergency response agencies such as the fire and police departments. In addition, U. S . West Cellular serves the Office of Disaster Preparedness by providing "reliable phone communication during natural and man-made emergencies when typical land-line phones are inoperative". In the brochure supplied by U.S. West (Attachment "D"), the amount of radiation produced by cellular use is compared to other uses. Radiation from cellular antennas is less than that of a cordless phone, hand-held CB radio or standing one foot from a microwave oven. The information contained in the brochure is consistent with the information contained in the PacTel application. Based on this, staff concluded that the U.S. West facility would pose very little electromagnetic hazard to the public. u.s. West and PacTel are the only two providers of cellular service in the region. Assuming this application is approve, there will be no need to erect additional cellular antennae within this service area. F:\HOME\PLANNING\ USWEST\9406PC .RPT 1" "'3 " , , , , t--- - \ , , !.~ \ 10.-.. \ - ,- - \\ // ~~ " = I I I J.lJ.\ ] -, ! I : \ 'i i I r I i , \ \ \ '-.... ........ ........ ........ .............. .1 I I- ~IL ~ /- ~ ",V _ ! I-- a: ... ----:-,r--------. \ \ - 1 t '1\ c~ ~ \I~ t--- n -' MARSA' II ! I ! ~ ST"EET f- ~ , \ \ " mTREET ... , ~ (\ , , \\ , I , ~ , ..... - -- , ~ \ I \ \ ----- _. PROJECT LOCATION ..; ~ "' . { J : ! CHULA VISTA PLANNING DEPARTMENT C) APPLICANT: U S WEST PROJECT DESCRIPTION: CELLULAR To construct a 60' tall cellular antenna ADDRESS: 775 ANITA STREET and support structure. SCALE: FILE NUMBER: Attachment "A " NORTH 1" = 400' PCC - 94 - 06 4-Cf """""'" .. '>!,>:!' " ! ' ,~ I / I III ,0.. ,~ w zl,1 w 0' I ~ ~i!l ~ ""I' }, -1 I ~ ul' III ~I ~II t; ,i ifi'!1 ffi II!. 5 Ii\; ~!!. 'I ~;'I z !i.,.::;1.. :c Iii;' II "~,, ;; ,'II ii: ih\j ~ "II,'! ~ !~I"i o ~IH c( ~I~ <( l '! : ...J "',.' j t 1mI:' <!.. . I , ) It! ~'i ' ~h t , ~" If .."".............. $1. 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' ''''417 SIlO ~ - MAl t:4 S'[ Au'achment J'B" ~ ~ ~ . . i -- .Q.P. - ... ... /' MA~ .-.... \ /' SEC .- ~-8 . ROS .9.. -- . .-- ._-"'''' . ~.... .... ...-. 1374,4818.6908,7974,11896.12190 . . " .,~ ~ ~. -. ~ - U S WEST CELLULAR Conditional Use Permit Application Project Description The cellular antenna facility proposed by U S WEST Cellular of California would consist of a freestanding, 6Q-foot monopole with a triangular antenna shroud located at the top. The shroud would screen a total of 12 sector antennas. A 4-foot diameter microwave dish would be located at the 50-foot level on the monopole. The antenna facility would be located adjacent to the existing industrial building at 775 Anita Street. A six-foot chain-link fence would surround the base of the monopole. Equipment associated with the facility and necessary to operate the cellular system would be located within a leased portion of the existing building. Tenant improvements including a new outside access door would be completed. Existing landscape areas will be retained on site. One handicapped parking space would be relocated immediately north of the fence structure to accommodate the antenna. Cellular is the technology of wireless phone communication. Rather than telephone wires, voices are carried on radio waves. A cellular system consists of many low-powered antennas in a honeycomb pattern of "cells" that invisibly blanket an area. Today, cellular phones are used throughout the business and professional communities, the agricultural community and virtually all facets of the public and private sectors, including police, emergency and medical service providers. In San Diego County, U S WEST Cellular provides service to the roadside emergency call boxes located on all major freeways. In addition, the Office of Disaster Preparedness relies on U S WEST cellular service to maintain reliable phone communication during natural and man-made emergencies when typical land-line phones are inoperative. The attached brochure provides basic information to many questions regarding cellular, including the need for new sites and the process of identifying a new cell location. The proposed facility is required to add additional channels and capacity to the south San Diego area and to relieve call interference caused by cellular signals originating from the cellular system in Baja California. The specific site at 775 Anita Street was chosen after engineering analysis of the area and a real estate search for available property. The existing industrial land use designation and the topography also lend to siting the facility at this location. The City has recently approved a similar facility for the other cellular carrier operating in San Diego County. While that facility is near the proposed U S WEST site on Anita Street, collocating the two facilities on the same monopole would require re-structuring and engineering of the pole as well as a height increase to accommodate necessary antenna separation. The overall appearance of a collocate facility may be more noticeable and obtrusive than a second facility as proposed. In addition, each cellular carrier operates a completely separate and independently engineered system. While individual cell site locations may coincide, small differences in the overall system may require a new cell site to be located even short distances away in order to operate at an optimal level. L/.- , Attachment "C" Commonly Asked Questions about Proposed Cell Sites 1. What will it.look like? Over the past years, system growth and technological advancement have e~bled cellular carriers to design new cell sites to be less intrusive on the existing rural and urban landscape. Typically, cellular communications facilities can be found in one of three fonnats:, a lattice support structure, a slender monopole with an antenna shroud at the top, or a building collocation. Lattice support toweI> are used in areas whete great height is needed and/or where inclement weather 'requires substantially more support. Monopoles are more.commonly used and consist of a single pole, approximately 2.5-feet in diameter at the base, tapering to L5-feet at the top, The cellular antennas are mounted to a triangular support structure at the top, Monopole heights can , range from 25-feet to over i OO-feet depending on the service area of the facility. Building collocations consist of placing the , anterina structure found at the top of a monopole on the roof of an existing building. Sometimes, the sides of the triangular structure are separated in order to maximize the service output. Another type of building colloyation involves mounting cellular . antennas, sometimes as small as I -foot by 2-foot in size, to the sides of an existing structure such as a building or water tankThe antennas can be painted to match the structure thereby minimizing the visual impact of the facility. This fonn of building colloca- tion can only be used in areas where the required height can be obtained and where existing syste!:1l operations can accommodate the new facility at that precise location, 't~ L-JU 00 2. Why here? Once the decision is made tOJOxpand the system to either provide increased capacity or better, coverage, the cell site selection process begins (see Cell Site Selection). The fmal decision of choosing a site to take through ~e lanq use approval process is made after careful consideration of all the factors including system engineering needs; topography, existing strUctures and . .development, zoning and property availability, In all c~ses, more than one site bas been evaluated prior to selecting the most Ij . ."' , favorable location. The precise reasoning behind the fmal site selection for an individual cell will vary on a 'case by case basis. 3. How many more will be needed in our jurisdiction? Since there are only two celhilar catriers granted license to operate in any given area, the number of cell sites will be limited to that required to allow. those two competing operators to provide quality service. The number of sites also depends on the amount of calls needing to be serviced in an area. Cell site locations are not dependeitt on jurisdictional boundaries; the _ decision to pursue a site is based on system demand, topography, surrounding land uses, zoning and property availability, The ultimate number of cells ina _community will depend on the cellularphonetraffic in the surrounding area. Future technological . advances may increase capacity at existing sites and/or may create sites th~t are less. intrusiye on the existing environment. 4. Who benefits? .In addition to the incr<!ased capacity and quality generated for. individual system users, a new cell site benefits the general public in theIonn of emergency services, In major metropolitan areas, cellular roadside call boxes have been ~talled along freeways and highways to enable a stranded traveler to reach the highway patrol or other fonn of assistance immediately. Other public service providers including police, sheriff, fITe, paramedic units and emergency. response teams rely on the cellular system. as a prim'ary fonnof communication. Continued main~enance and upgrades to the cellular system allow these customers to provide their services to the general public. 5. What about land ~se, visual and Itealth Impacts? The c~ll site selection prOceSs always considers the impacts a new site may have on surrounding land uses and particular concern is given to the visual impacts. When possible, a site~is chosen adjacent to ex,isting utility facilities such as water tanksl \1tihty lines and other anteimas. In urban areas. buildin~ collocations are conSidered. Incorporation of the antennas into building design and architecture has also been.. part of mitigating visual irripacts. Radiofrequency electromagnetic emissions from cellular antennas have been shoWn to be so far below any documented levelS producing hazardous biological eff~cts and all recognized safety sbudards that they constitute no hazard to public health or safety. The secrion on Public Safety-in this ..btochure goes into further detail on this issue. Cellular and Other Transmissions . Cellular Does Not Interfere With Other Transmissions To maximize the capacity of the system, cellnlar antennas transmit at very low power. This allows the same frequencies to. be used simultaneously in nOI1-adjacent .cells. US WEST Ne\VVector Group Operates hundreds of cell sites in its market' a~ and has never causeq any interference problems with other transmissions. , ~ . Ultr~ Gamma Violet Visible R~ys X Rays Light Cellular Phones tnf!"red' ~it:rlJWave I~/FM AM Radio 1,1.11,1'1.,1,1..1/ 101\1." 1011 1015....1013 1011 .109 EI..BcrROMAGNETIc: SPECTRUM........... ."'.. ~ C lIular Phones / UHF. TV Chsnn~!s 1; 13 I... ~ I I J ~07, I~.. 103 'Fre.qucncy/Hz " -- I~ 'I~ ~ Radio frequencies are a precious nati'omil resource for which - , , FreqlWlcy!Hz there is a tremendous and growing demand. The Federal the broad range of frequencies and the narroW segment of this Communications Commission (FCC) regulates the Ilse of radio spectrum that constitutes radio and television frequencies and frequencies throughout the .United States. The graphs ilJ,us~ate . ,th';'e allotted to cellular phone transmissions, ~ . c .. . ...,. '.' '.. 4 -l C ',,>., ,~'., .' ". Public Safety Questions \ . Cellular Operates on Radio Frequencies In recent years there has been concern over possible health effects from radio frequency (RF) energy. This energy is around us every day, coming from commercial radIo and TV, radar, amateur radios, and-other sources. The frequencies used'by the cellular phone network are the same ones assigned previously to . certain UHF TV channels, and so have been in the airwaves for many years. . Cellular Compared to Other Sources Radiofrequency electromagnetic emissions, orradiation, consists of waves of electric and magnetic energy moving together through space at the speed of light. The electromagnetic '''spectrum'' includes all of th~ various fonns 'of emi~sionS from extremely low frequency (ELF) radiation from electric power lines to X-rays and gamma rays with very high frequencies and correspondingly short wave lengths. In between these extremes lie radio waves, infrared radiation, visible light.and ultraviolet radiation. Besides cellular telephone applications, familiar uses of radiofrequency energy includeAMandFr4 radio and television broadcasting, cordless telephones and microwave ovens. The American National Standards Institute (ANSI) has established a standard for safe exposure levels to RF energy. That standard is. compared to other household sources and a typical cellular. phone antenna in theac~ompanying graph. . \ " Cellular Transmissions are Low Power and Short Distance All radiofrequency emissions are of the "non-ionizing" type. That means their frequency and resulting energy level are well below that required to change atoms and molecules which would lead to significant genetic damage in biologicaftissue. OnlyX- rays and gamma rays at extremely high frequencies (above visible light) have sufficient energy to be "ionizing." In addition, cell site antennas tiansmit relatively short distances and operate at very low power levels. The amount of energy from a single cellular phone channel is tyPically about the same as the energy \ required to operate a loo-watt light bulb. Each cell site may operate anywhere from eight to fifty channels simultaneously, .. though the channels rarely all transmit at the same time. Therefore, the energy from a typical cell site would be equivalent to the energy needed to operate up tq fifty loo_watt light bulbs, depending on how many channels' are being used at one time. . The power from a singl/ceUular cfu,nnel is about the same as an ordinary IOO-wau light bulb. ,-/-/Z \ .' '1 . ,!. 2 E ~ w o . , ~. . Cellular . ';0 ANSI -I Fool nand Held Cordless CeUuIBr Standard from a CB Radio i Phone Microwave 0", .comparison of W.Energy, Cellular Antennns \>S. ANSI Stanilard & Household Sources . Associated Microwave Transmissions are Narrow,Point~ to-Point Some antennas in the. cellular phone network are fuicrowave relay antennas that transmit and receive telephone messages from cellular sites to the wireline telephone network.lhe signal between these anteD:11as is in a directed beam, so th~ disperSion. of RF energy outside this l1arrow beam is itlsignificant, Even directly beneath a cellular antenna, the exposure is about half that of an ordinary cordless phone, or less than one percent of the ANSI standatd. . ., US WEST Cellular is a division of US WEST NewVector Group. a subsidiary of US WEST,Inc., with Its corporare headquarters loca~ in BeUevue, Washington:US WEST, Inc. is one of the seven regional companies created by the divestiture of AT&T in 1984. ~ ,. . Cellular Past, Pre,sent and Future " Early System Limitations Through the 1970. the FCC had authorized only 54 two-way radio channels to be used for mobile photie service. FCC regulations split the uSe of the channels between Bell and independent telephone companies and numerous Radio Common Carriers (RCCs). The combination of these two items yielded mobile phone systems with low trunking efficiencY and limited capacity. The splitting of the available spectrum into .small segments meant customers were not able to use their phones iri distant cities. Mountain top sites with high power output were common. This offered a larger service are. but made it difficult to reuse frequencies for great dist~ces. (( ((, ')))) W(, 'J))) , Common Mountain Top Configuration . The Promise of a High Capacity System Bell Labs began research fora high capacity systern in 1947. The key concept that emerged was that channel~ would have to be reused multiple times throughout the network. It was also established that a large number of channels would be required to increase the trunking efficiencY of the system. In 1974, the FCC authorized40 MHz of spectrum to be used for this new emerging technology. This was accomplished by eliminating channels 70 through 83 in the UHF television band. . . The Cellular Concept is Born Service areas were divided into smaller regil'ns called "cells". Each cell contains a base station transmitter/receiver location. Cells can be "split" and new cells added to increase system capacity. Calls are served by the closest cell site in order to improve quality. Calls in progreSs are "handed off" from one cell to another as the user moves through the system. The use of 1 ower power base stationS allows the reuse of channels within a small geographic area. . " Capacity Growth Trends , As a cellular system grows and "split" cells are added it is necessary to take steps to minimize interference between sites. Closer cell spacing requires lower.antenna heights to reduce cell overlap. Sectorization, a process which allows cell sites to be located closer without compromising call quality, becomes mandatory. As the desired coverage area for each cell decreases, , the pr~per placement of the site becomes critical. Poorly placed calls can cause interference or leave gaps in coverage. W(, 'J))) J Cammon Configuration for Frequency Reuse. " New Cellular Technology . Research has shown that nonnal speech consists of more dead space than sound. A ~adio wave carrying a cellular telephone conversation would have many gaps of "dead air." Time Division Multiple Access or TDMA is a technology which exploits the natural breaks in speech by using the pauses .for additional transmissions. Implementation of this approach may triple system calling capacity. An alternative to TDMA is a technology referred to as CDMA or Code Division Multiple Access. In COMA, each conversation would be ~ssigned a digital code before being scrambled over. a wide frequency spectrum. A computer would reconstruct the conversations at the receiving end. A possible 10- to 20-fold increase in call capacil)' may evolve with CDMA. ,.) , I . Personal Communications Network The idea behind Personal Communications Network, or PCN, is , that in the future, phone nwnber$ will be associated with .people, not places. A person would theoretically be reachable by phone ,anywhere in the syst~m. The need for separate phones at the horne, work place or elsewhere would be,eliminated by the fact that people could carry per;;onal phones much like they wear wrist watches. Cellular Glossary ceO. A small geographic area served by.a low.powered transmfUet, 2to 10,miles ihradius. \ Cell Site. An installation containing the ttansmi'tters, receiverS and control equipment necessary to conned the cellular phone system and the conventional wireline telephone network. . Cell Splitting. The division of a larger cell into several smaller cells to provide more channels within the same geographical area, and therefore Providing bettef service. ' Cellular Geographical Service Area (CGSA). A specific geographic area, within ~hich a cellular system serves customers: Mobile customers are expected to subscribe to cellular service within a given CGSA._ - Digital Radio Link. A radio signal used to connect telephone circuits from a'cell site to the central switching equipment (the MTSO). , Electronic SWitching System.-A computer that au,omatlcally r~utes c:alls within the cellular system, located at a central site. Hand.-Off. The indistinguishable automatic switching of a signal from one,cell t~ another, which occurs within a fraction of a second. _ - , r Mobile Telephone Switching Office (MTS0) also known as the MTX or "Switch". The interface between the cell sites and. the conventional wirelipe telephone network. It serves as the central coordinator and controller, as well as housing the switching equipment for a cellular'telephone system. RadioCommon Carrier (RCC). J;irms lice~d by t,he Federal Communications Commission (FCC) to provide a variety of radio services to the public, including dispatch and paging se!Vices. Many RCCs now own cellular licenses. us WEST NewVector is an RCC licensed by the FCC. I Roaming. The ability to operate a celluJlir mobile telephone in a. mobi'le service area other than the one frf?m which service is subscribe&--for example, being able to use your cellull't phone in Minneapolis, even though you subscribed originallr in Seattle. ' , ". Sedomation. An, engineering, refmement of a cell's transmission anlennas,' which improves call quality by reducing crossAalkjinterference. This is done by ':, splitting- the coverage 'Of tlte cen site into three . equal sectors by means. of directional antennas, Wireline Telephone Netw~rk. The conventional local telephone network which transmits calls over wires rather than radio waves. - '/-13 CGSA Cellular Geographical Service Area. The boundaries of the entire system are. determined by the Federal Communications Commission (FCC). Cell sites must be located so that radio signals from the system stay within the boundaries of the CGSA. The Cellular Grid. Within the CGSA, individual cell sites are planned on a hexagonal grid pattern. This pattern allows frequencies to be reused between cells and provides coverage for the largest area utilizing fewer antenna sites, thus reducing the potential for land use impacts. This pattern also allows future "celt splitting," or ~sectorization." as the system grows. Topography, Land Forms and Other Constraints., The computer analysis takesinto consideration the hills and valleys within the service area. Basically, a line-of-sight relationship is needed between the antenna and tbe cellular telephone to insure quality service. There are often land features'within a search area that limit the options for site locations. Features such as bodies of water, swamps and steep slopes may prove impossible to.build upon, and since cell sites must be periodically maintained, they must be accessible to technicians year-round. Therefore, sites need to be found that are near the center of the search are~, at the q -/ 'I- Cell Site Selection Cellular telephone service is expanded in a given area to provide better service to cellular customers. This can be done in two ways: extending the coverage to new areas or increasing the capacity of the system within the current service area. The decision to ~xpand the system depends on a number of factors. First, the number of current customers within the area and the capacity of the current system are analyzed to identify the need to expand. Second, the quality of service within the area is continually evaluated, both electronically at the switching equipment', and through feedback from customers. If there are a significant nU!llber of service failures reported, such as dropped calls, continuous busy signals, or an "all circuits are busy" message, the capacity of the system must be increased. Third, the. FCC license granted to the cellular carrier requires that service be provided to 75% of its CGSA (Cellular Geographical Service Area) within 5 years from the date the license is granted. Maintaining a high quality, interference-free service is essential in order to comply with these FCC requirements and to compete with other cellular carriers. Once the decision has been made to expand or improve service, th~ engineers at US WEST NewVector prepare a preliminary design analysis. The topography and terrain features within the service are entered into a computer, along with a series of variables, such as antenna height, available frequencies, and equipment characteristics. From this infonnation the engineers detennine a search area for the optimum location and height of the antenna to maximize service within the cell. When this technical analysis is complete. a search area map and other requirements are provided to the real estate and site selection consultants. With this infonnation, the planning consultant and real estate acquisition consultant apply various criteria to identify and rank potential sites. The following is a summary of these cell site selection criteria: optimum elevation, and accessible by existing roadways. Sites with existing or proposed high-rise buildings nearby must also . be avoided because buildings or other massive objects or landfonns block the cellular radio signal in much the same way a building blocks sunlight. Since all of the cell sites work together (calls are automatically handed off from one cell to another as the driver travels between coverage areas), one antenna may not be lowered or raised without affecting the p.rfonnance of that cell and adjacent cells. .The combination of these factors results in the identification of well-defmed "preferred locations" within the search area. In urban areas, conditions can sometimes result in a search area with a radius as small as one quarter mile or less, while in rural . areas the radius of the search area may be many miles. FAA and Existing Radio Conflicts. In addition to the engineering constraints noted above, the site location must not interfere with either Federal Aviation Administration (FAA) requirements, or existing radio transmitters operating at high frequencies. FAA regulations protect air space zones and flight paths surrounding airports and the locations and heights of all antennas are reviewed to insure that they do not violate these safety zones. Also, when certain AM and FM radio broadcast towers are located in close proximity to cellular antennas, it can degrade the perfonnance of the cellular signal by creating interference. Consequently, the placement of a cell site in close proximity to AM or FM towers must be thoroughly analyzed. Zoning and Land Use Compatibility. Whenever feasible US WEST NewVector strives to acquire property that is properly zoned and adjacent to compatible land uses. Sites adjacent to existing tall power lines, microwave facilities, antenna fanns, water treatment facilities, and on the tops of buildings are selected when they meet the other technical requirements of the system. When compatibility might be a concern, a concerted effort is made in the design process to screen facilities and reduce. visual impacts. Property Availability. Due to all of the engineering and design constraints described above, it is sometimes difficult to fmd sites that meet all of the requirements. In all cases, more than one site is evaluated prior to selecting the most favorable location. L",""~'Tow<' OuL'>id~ Sc."h AT<a " This illustration summarizes some of the site selection constraints RESOLUTION NO. PCC-94-06 RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF CHULA VISTA RECOMMENDING THAT THE CITY COUNCIL GRANT A CONDITIONAL USE PERMIT FOR A 60 FOOT CELLULAR ANTENNA AND A COMMUNICATIONS EQUIPMENT SHELTER WHEREAS, a duly verified application for a conditional use permit was filed with the City of Chula Vista Planning Department on August 6, 1993 by U.S. West Cellular (OWNER); and WHEREAS, said application requested a Conditional use permit to allow construction of a 60 foot high cellular antenna and a communications equipment shelter (PROJECT) in the IL-P Zone located at 775 Anita Street near the northeast corner of APN 622-102-33 (PROJECT SITE); and WHEREAS, the Director of Planning set the time and place for a hearing on said Project and notice of said hearing, together with its purpose, was given by its publication in a newspaper of general circulation in the City and its mailing to property owners within 500 feet of the exterior boundaries of the Project Site at least 10 days prior to the hearing; and WHEREAS, the hearing was held at the time and place as advertised, namely October 13, 1993 at 7:00 p.m. in the Council Chambers, 276 Fourth Avenue, before the Planning Commission and said hearing was thereafter closed; and NOW, THEREFORE, BE IT RESOLVED THAT THE PLANNING COMMISSION hereby recommends City Council approval of the attached draft City Council Resolution for the Project, subject to the findings and conditions contained therein. BE IT FURTHER RESOLVED THAT a copy of this resolution shall be transmitted to the applicant and the City Council. PASSED AND APPROVED BY THE PLANNING COMMISSION OF CHULA VISTA, CALIFORNIA, this day 13th day of October, 1993 by the following vote, to-wit: AYES: NOES: ABSENT: ABSTENTIONS: Thomas A. Martin, Chairman Nancy Ripley, Secretary :\HOME\PLANNING\MARTIN\U5WEST\9406PC .RES iI--/5' DRAFT RESOLUTION NO. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CHULA VISTA APPROVING PCC-94-06, A CONDITIONAL USE PERMIT TO CONSTRUCT A 60 FOOT TALL CELLULAR ANTENNA AND A COMMUNICATIONS EQUIPMENT SHELTER IN THE IL-P ZONE LOCATED AT 775 ANITA STREET WHEREAS, a duly verified application for a conditional use permit was filed with the Planning Department of the City of Chula Vista on August 6, 1993 by U.S. West Cellular (OWNER); and WHEREAS, said application requested approval of said conditional use permit to construct a 60 foot high cellular antenna and a communications equipment shelter (PROJECT) in the IL-P Zone located at 775 Anita Street near the northeast corner of APN 622-102-33 (PROJECT SITE); and WHEREAS, the Planning Commission held a public hearing on October 13, 1993 and voted _-to-_-to-_ recommending that the City Council approve the Project; and WHEREAS, the City Clerk set the time and place for a hearing on said Project and notice of said hearing, together with its purpose, was given by its publication in a newspaper of general circulation in the city and its mailing to property owners within 500 feet of the exterior boundaries of the Project Site at least ten days prior to the hearing; and WHEREAS, the hearing was held at the time and place as advertised, namely 6:00 p.m. November 2, 1993 in the Council Chambers, 276 Fourth Avenue, before the City Council and said hearing was thereafter closed. NOW, THEREFORE the City Council of the City of Chula Vista does hereby make the following findings as related to PCC-94-06: 1. That the proposed use at the location is necessary or desirable to provide a service or facility which will contribute to the general well being of the neighborhood or the community. The proposed cellular facility is necessary to provide and maintain a quality cellular phone system in the Chula Vista area. The U.S. West cellular system is used by many public service providers including sheriff, police, fire and paramedics. In addition, the roadside emergency call boxes throughout the County of San Diego rely on cellular telephone communication. The proposed facility will provide needed channel capacity in the area that will help to assure availability, not only for general users, but for emergency service providers. 2. That such use will not under the circumstances of the particular case, be detrimental to the health, safety or general welfare of persons residing or -$1'-1(" Resolution No. Page #2 working in the vicinity or injurious to property or improvements in the vicinity. Cellular communications operate on low-power radio waves. Emissions from cellular antennas have been shown to be below any levels that would cause hazardous biological effects. In addition, cellular antennas emissions are so far below all recognized safety standards that they constitute no hazard to public health or safety. 3. That the proposed use will comply with the regulations and conditions specified in the Municipal Code for such use. Conditional Use Permit PCC-94-06 is conditioned to comply with the regulations and conditions specified in the Municipal Code for such use. 4. That the granting of this conditional use permit will not adversely affect the general plan of the City or the adopted plan of any government agency. The granting of PCC-94-06 will not adversely affect the Chula Vista General Plan in that said project is proposed to be built on a site already containing industrial uses, said uses conforming the General Industrial land use designation of the General Plan. BE IT FURTHER RESOLVED THAT THE CITY COUNCIL hereby approves the Project and grants conditional use permit PCC-94-06, subject to the following conditions whereby the applicant shall: 1. Obtain all necessary permits from the Chula Vista Building Department and Fire Department. The design of the monopole and equipment shelter shall comply with the edition of the Uniform Building Code and the Uniform Fire Code in effect at the time of issuance of any permit. 2. Utilize galvanized gray paint on the subject structures to the extent possible in order to reduce the visual impacts of the proposed structures and to allow for the most transparent view possible. 3. Construct the antenna support structure and panel antenna system to a maximum height of 60 feet. Omni-directional antennas may be placed both on top of and below the panel antenna system to a maximum length of 15 feet. : \HOME\PLANNING\MARTIN\USWEST\9406CC .RES f'. 17 Resolution No. Page #3 4. Provide proof by letter that Owner has paid applicable developer fees to both school districts prior to the issuance of any building permit. 5. This permit shall be subject to any and all new, modified, or deleted conditions imposed after adoption of this resolution to advance a legitimate governmental interest related to health, safety or welfare which City shall impose after advance written notice to the permittee and after the City has given to the permittee the right to be heard with regard thereto. However, the City, in exercising this reserved right/condition, may not impose a substantial expense or deprive Permittee of a substantial revenue source which the Permittee can not, in the normal operation of the use permitted, be expected to economically recover. 6. This conditional use permit shall become void and ineffective if not utilized within one year from the effective date thereof, in accordance with Section 19.14.260 of the Municipal Code. Failure to comply with any condition of approval shall cause this permit to be reviewed by the City for additional conditions or revocation. BE IT FURTHER RESOLVED that a copy of this resolution be transmitted to the applicant. Presented by Approved as to form by Robert A. Leiter Director of Planning Bruce M. Boogaard City Attorney : \HOME\PLANNING\MARTIN\U5WEST\9406CC .RES 1/./9