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Home My WebLink About20132732.tiffEXHIBIT INVENTORY CONTROL SHEET Case USR13-0032 - PUBLIC SERVICE COMPANY OF COLORADO Exhibit Submitted By Description A. Planning Commission Resolution of Recommendation dated 11-5-13 B. Planning Commission Summary of Hearing (Minutes dated 11-5-13) C. Planning Commission Resolution of Recommendation dated 9-17-13 D. Planning Commission Summary of Hearing (Minutes dated 9-17-13) E. Planning Commission Summary of Hearing (Minutes dated 8-6-13) F. Applicant GPS Equipment and Power Line Document G. Dennis Hoshiko Letter of Concern, dated 10/01/2013 H. Applicant PowerPoint Presentation I. Applicant Email dated 11/26/13 approving continuance J. Planning Services Letter dated 11/27/13 requesting continuance for BOCC K. Planning Services PowerPoint presentation L. M. N. O. P. Q. R. S. T. U. V. W. 2013-2732 htill: '; > � .y.v ..4. '.j>.?�i )?)t:• •t.<'yit:c3 C..'�u'•;t ��ttt •..�. "l'�`n°_3 •r`,!�Y. c. c. + t. 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Y�.:' tf��.at :y t:r. f• a. :r''.' :SS s. „,q: C./Is.%�!:{.: .:'d .i.f:'s�t :fit �: 7 PA ztCii t:lA,t::; : r'.r:▪ .J C?Ct.: ;1;1 -at ->>.,.,''S Isr• t:•t...,etii.,....t`,'c'),•S.l. s.. -:.Y:�'s::•:t. :r':i 7..S:.'�r.:.�•Y.'•��."'::3p. irt•'f . . .• 5.• .d : 7.•v P.; '•. til it., (. ^•:. r"5:'yt:,{'` ^fi.e \?S` LTY`• :l�:Itt+w. .:: :.Alr'! 1 x/' 1:1< •ia:S' :;4:•l a..•, rf'L:}J•:9 ? :.. ,!.•,_i^.. Altalink understands that some stakeholders are concerned about potential interference from transmission facilities on the operation of Global Positioning System (GPS) equipment. We encourage you to contact us with the specific details of any GPS concerns you may have. We will work with you to investigate and mitigate any potential GPS interference caused by our facilities. Standard GPS receivers Studies examining the use of standard GPS receivers under or near transmission facilities have shown that interference with the reception of GPS signals is unlikely. The interference produced by transmission facilities is usually only significant at frequencies lower than 30 megahertz (MHz) and is not expected to cause issues with GPS receivers which operate at much higher frequencies (between 10 and 100 times higher). GPS receivers also use multiple satellites and decoding techniques which help to prevent loss of signal. DifferentiaL GPS receivers Differential GPS (DGPS) receivers require additional correction signals. Real-time kinematic technology (RTK) is one example of a DGPS technology being used today. Research has shown that there is potential for a DGPS receiver to be affected if all the following conditions exist: the receiver is located close to an electrical facility • the DGPS signals are being transmitted in the hundreds of kilohertz (kHz) ® interference produced by the transmission facility is in the same frequency range used by the DGPS receiver tar... J•xi •: •••••,;,••••. it � C `.t .. �',4 r .I• T �:\.a).. ..y. /s�•c:`: 121.1 y.. 'Ltr�i•?a.. lg;?,'^r+.C'!Ft,'.:. • ''•'i" .t. .S: it '"`n:f°'73� .�it4ig,t3r2,t atsg 1.1 There are many other factors which can also affect a DGPS receiver, including receiver/antenna design, location, signal strength, weather conditions or interference from other sources including other DGPS systems in the area. Possible mitigation for GPS receivers could include the following: • replacing the GPS receiver • ensuring all factory upgrades have been installed • correcting GPS receiver installation deficiencies • relocating the DGPS ground -based station If necessary, we may have an external interference specialist come to your property or contact the manufacturer of the GPS equipment to help identify problems and propose solutions. 2611- 3rd Avenue SE Calgary, Alberta T2A 7W7 orb Printed on paper usirq, post -consumer content National Grid EMF - Power lines and GPS Page 1 of 2 EMFsninfo Electric and Magnetic Fields Links • Literature a Contacts • Other issues a Wayleaves and easements • Safety clearance distances a "danger of death" notices a Audible noise a GPS a Radio and TV interference Power lines and GPS Home i Contact us I Sitemap I Glossary Search aael Can power lines interfere with Global Positioning Systems (GPS)? GPS operates by sending radio -frequency signals (in the microwave range, 1.2 - 1.6 GHz) from a constellation of satellites to the receiver. If the power line interfered with these signals, it could potentially cause either a reduced accuracy in the calculation of the position, or even an erroneous position. Does this happen in practice? There are two possible mechanisms to consider: Screening of the satellite signal by the physical presence of the power line A power line is similar to any other physical structure. We know that buildings, trees etc can sometimes stop the GPS receiver from picking up the satellite signals. Potentially, the same effect could occur inside the body of a pylon. But calculations show that the conductors of a power line are too thin to have any significant effect. This has been confirmed by measurements: driving under the conductors of a power line made no measureable difference to the signal strength detected by a GPS receiver. Radio -frequency interference produced by the power line itself High -voltage power lines can produce corona, which does cause the line to emit some radio -frequency EMFs. All power lines can sometimes have arcing on their fittings, which likewise produces radio -frequency EMFs. But again, calculations show that it would have to be really extreme even to be big enough potentially to cause problems, and in practice, tests have not detected any interference with GPS. Differential GPS Some systems for obtaining greater accuracy from GPS use a separate signal from another satellite or from a local transmitter set up either by the user themself or more centrally for groups of users. This should not be subject to interference from the power line unless the line of sight between the GPS receiver and the base station is blocked temporarily, which could happen with any type of obstruction. Conclusion Right up close to a pylon, there might be some degradation in GPS performance, just as there can be some degradation close to buildings and trees. Other than that, there is no evidence of power lines interfering with GPS. http://www.emfs.info/Finding+Out+More/otherissues/gps/ 8/6/2013 National Grid EMF - Power lines and GPS Page 2 of 2 Other effects of power lines on agriculture One use of GPS is in agriculture, sometimes referred to as "precision agriculture". See also the evidence on whether power lines have any other effects, on animals, crops etc. Abstracts of relevant publications Power Delivery, IEEE Transactions on, 2002, 17 (4) 938 - 944 Use of Global Positioning System (GPS) receivers under power -line conductors Silva, J.M.; Olsen, R.G. The use of Global Positioning System (GPS) technology continues to grow and accuracy augmentations will generate ever more innovative applications. The issue of GPS use under or near electric power lines has been raised since some GPS documents have vague warnings about such use. First, GPS and the satellite microwave signals used to determine position, velocity, and time are described. Then, the potential effects of electromagnetic interference and/or signal scattering from overhead conductors are evaluated analytically and with some practical measurements under transmission lines. This work demonstrates that it is unlikely that power line conductors will interfere with use of the GPS satellite signals. Note: the following paper refers to a system of differential GPS used in America but now increasingly superseded by more accurate systems such as RTK. Power Delivery, IEEE Transactions on, 2002, 17 (2) 326 - 333 Evaluation of the potential for power line noise to degrade real time differential GPS messages broadcast at 283.5-325 kHz Silva, J.M The new Nationwide Differential Global Positioning System network uses the 283.5-325 kHz band to broadcast differential GPS (DGPS) correction messages. Concern has been expressed that power line corona and gap discharge noise could degrade the performance of DGPS receivers using this band. Previous work on power lines and the AM broadcast band identified corona and gap discharges as broadband noise sources in the LF/MF bands. The potential to locally degrade performance of DGPS receivers relatively close to some power facilities appears possible for certain situations. The extent of any DGPS interference problem will depend on receiver/antenna design and placement, signal strength, power line design, weather conditions, and characteristics of the noise source. Also affecting DGPS receiver performance can be the presence of any nearby nonpower line RF noise sources;such as electronic devices or equipment internal to the users vehicle. http://www.emfs.info/Finding+Out+More/otherissues/gps/ 8/6/2013 Center to Grand Fo Project . , - MinnkotaPower lr,Pcr. COOPERATIVE, ` INC. Radio, Teievi&ion, Celi F -hone, and GPS interference Facts What causes interference? Corona from transmission line conductors can generate electromagnetic "noise" at the same frequencies that radio and television signals are transmitted (corona is the breakdown or ionization of air within a few centimeters of conductors and hardware). This noise can cause interference with the reception of radio and television signals depending on the frequency and strength of the signal. Will the Project interfere with my radio signal? FM radio receivers usually do not pick up interference from transmission lines. If there is AM radio frequency interference, it typically occurs immediately under a transmission line and dissipates rapidly from the line. A two-way mobile radio located immediately adjacent to and behind a large metallic structure, such as a building or transmission line tower, or a large landscape feature, such as a hill, may experience interference because of signal -blocking effects. This would generally require a movement of less than 50 feet away from the structure or to higher ground to reduce the interference. Will the Project interfere with my television reception? Television interference is rare, but may occur when a large transmission structure is aligned between the receiver and a weak distant signal, creating a shadow effect. Digital reception is, in most cases, more tolerant of electrical noise and somewhat less resistant to multipath reflections (i.e., reflections from structures) than analog broadcasts. The towers are proposed to be about 1,000 feet apart, thus there would be plenty of space between the towers for the signal transfer. Satellite television interference may occur from any tall structure placed in front of the receiver. The Project is proposed to be located at least 500 feet away from residences. This spacing will greatly reduce the potential for interference. Will the Project cause interference with my GPS unit? GPS units collect location data from at least three or more satellites at any given time. The accuracy of the location data is dependent on the number of satellites and the strength of the signal. Since satellites are in constant motion above the earth, GPS units are constantly picking up and dropping satellites. At times there might be instances when the GPS unit is not able to connect to enough satellites and the required accuracy is not met. Reat-finis differential. GPS: GPS Interacts with farm equipment to Navigate in the fields *Deere and Company © OiM tW ecLrm T.....: ems' 'y In 2002 the IEEE (Institute of Electrical and Electronics Engineers) published a study' that investigated the effects of overhead power -lines on GPS receivers with respect to the effects of EMI (Electromagnetic interference) generated by two mechanisms: corona noise and gap discharges. Measurements evaluated whether the GPS signal could be scattered by overhead conductors and if EMI could adversely affect the signal received. The test conducted in the study by IEEE used a Trimble GPS receiver near a 345 -kV line to see if corona noise and gap discharge could affect the "lock" a receiver had on the satellite constellation above. They made multiple measurements in fair and foul weather conditions and also under double circuit twin -conductor transmission lines. The study reported that exposure to corona noise or gap discharge noise did not cause a loss of satellite signal lock. They did however note that the receiver may lose lock due to temporary poor satellite configurations, which may happen from many different sources, including poor satellite constellation (less than four visible satellites) and/or outages to the base station or transmitter. On rare occasions, a transmission line structure may cause a drop in accuracy due to blocking a view to one satellite, but this would only occur if the receiver, tower and satellite are in a line, which is rare. Connection is usually restored within minutes and the GPS units return to normal function. Will the Project cause interference with my cell phone? Cellular service will not be impacted by the Project, because cellular signals are transmitted in all directions and would not be blocked by the Project. If interference occurs, what will Minnkota do to fix the problem? If interference occurs, Minnkota would work with the affected entity to correct the issue until reception is obtained. Typically, tightening loose hardware on the transmission line and appropriate modification of the receiving antenna system will resolve any interference problems. "Use of Global Positioning System (GPS) Receivers Under Power -Line Conductors" published in the IEEE Transactions On Power (October 2002) Gateway West Transmission Line Project - Safety Page 1 of 1 PROJECT INFORMATION Safety About the Project Project Documents Agriculture Safety Construction Vendor and Contractor Info ARMG LIST Get all the latest` Gateway West information direct to you CALENDAR Upcoming and Gateway West meetings. ROCKY MOUNTAIN POWER DAHO POWER ROCKY MOUNTAIN POWER CONTACT U GATEWAY WEST Transmission Line Project Idaho Power and Rocky Mountain Power believe power lines are safe for people to live around. However, a few safety issues to be aware of: Line breaking - This can happen at any voltage level but is very infrequent and is generally the result of a vehicle colliding with a power pole. Safety devices, such as circuit breakers, are in place on the electrical system to detect such an event and disconnect power. If protective devices fail to open the circuit, a line lying in the road can be live and pose a serious risk of injury or death if someone comes in contact with it. Rocky Mountain Power and Idaho Power remind the public to always stay away from a downed power line and call the local electric company immediately. Fires caused by malfunctions or animal contact with power lines - Infrequently, a connection device will fail on a power pole and cause it to burn, resulting in a fire. Occasionally, a small animal or bird may contact live distribution or transmission lines and cause a brush or forest fire. Electromagnetic Fields (EMF) - EMF are invisible forces created by any electric charge. The word "electromagnetic" is a combination of two words; electro (electric) and magnetic. Electric fields are the result of the strength (voltage) of the electric charge. Magnetic fields are the result of the motion (current) of the charge. Wherever electricity is used, EMF are present. Since the early 1970s, extensive research has been performed to determine if EMF pose health risks. Idaho Power and Rocky Mountain Power agree with the overwhelming body of scientific research that show EMF are not detrimental to human or animal health. • EMF and interference - EMF do not cause radio, TV or cell phone interference. Modern line design has eliminated problems that caused noise or interference in the past. While it does happen occasionally, it is typically on older lines or where a piece of equipment is not operating correctly. When a problem does occur Idaho Power has the equipment and trained personnel to address the issue as required by the Federal Communication Committee (FCC). • EMF and Global Positioning System (GPS) interference - According to the following study by the Institute of Electronics and Electrical Engineers, power line conductors are unlikely to cause signal degradation to GPS signals. A GPS receiver relies on a dispersed constellation of satellites at least four and often more. Specifically, it was noted that there was no loss of satellite signals as a GPS receiver was moved across a power line easement. (Source: "Use of Global Positioning System (GPS) Receivers Under Power -Line Conductors,"IEEE Transactions On Power Delivery, Vol. 17, No. 4, October 2002.) EMF and interference with pivot irrigation systems - The Institute of Electronics and Electrical Engineers conducted a study to determine if electromagnetic fields of high voltage transmission lines can interfere with electromagnetically guided cornering systems associated with some center pivot irrigation units. Using electromagnetic susceptibility tests, it was found that 60 hertz magnetic fields of more than approximately 500 mG (Milligauss) are required to cause interference with the operation of one system. This level is significantly higher than those found near most high voltage transmission lines. (Source: "Electromagnetic Compatibility of High Voltage Transmission Lines and the Guidance of Center Pivot Irrigation Units With Cornering Systems,"IEEE Transactions on Power Delivery, Vol. 13, No. 4, October 1998.) Stray voltage - Stray voltage develops on the grounded neutral system of either the farm wiring or utility distribution system. If an animal touches metal equipment under the right conditions, any voltage on the grounded neutral system will cause a small current to flow through the animal into the ground. It may be a result of damaged or improper wiring on the farm or a nearby farm, or on Idaho Power or Rocky Mountain Power's electricity lines. Under normal conditions, the voltage is too weak to generate any physical or behavioral changes in the animal. For more information about safety issues, visit: National Institute of Health's EMF page EMF - Electric and Magnetic Fields Associated with the Use of Electric Power: Questions and Answers (PDF, 11.4 MB; National Institute for Environmental Health Safety and the National Institutes of Health, June 2002.) World Health Organization's EMF one http://www.gatewaywestproject.com/safety.aspx 8/6/2013 Technical Memorandum White Paper on High -Voltage Direct Current Transmission Lines and Electronic Devices Prepared for CLEAN LINE ENERGY PARTNERS LLC 1001 McKinney, Suite 700 HOUSTON, TX 77002 Prepared by Exponent 17000 Science Drive Suite 200 Bowie, MD 20715 November 5, 2012 1002567.000 FOTO 1112 WBO2 Technical Memorandum November 5, 2012 Introduction Exponent was retained by Clean Line Energy to provide a high-level technical assessment of the potential for the performance of electronic devices to be affected by its proposed high -voltage direct current (HVDC) transmission lines.1 HVDC is a well -established technology with over half a century of safe and reliable operation across the world and is particularly well -suited to transport large amounts of renewable power generated in remote areas over long distances to demand centers. Some landowners have asked for information about potential effects of HVDC transmission lines on various communication devices and implanted medical devices. Information about television and radio reception, cell phones, wireless intemet, and global positioning system (GPS) satellite receivers is discussed in the section on electric fields. The section on magnetic fields discusses standards throughout the world and research regarding potential effects on implanted medical devices. This report summarizes work performed to date and presents the findings resulting from that work. For this report we reviewed information about proposed Clean Line HVDC lines and the technical literature. Exponent has exercised usual and customary care in the conduct of this review and the findings presented herein are made to a reasonable degree of engineering and scientific certainty. Exponent reserves the right to supplement this report and to expand or modify opinions based on review of additional material as it becomes available, through any additional work, or review of additional work performed by others. The scope of services performed during this investigation may not adequately address the needs of other users of this report, and any re -use of this report or its findings, conclusions, or recommendations presented herein are at the sole risk of the user. No guarantee or warranty as to future life or performance of any reviewed condition is expressed or implied. 1002567.000 FOTO 1112 WBO2 1 r. Technical Memorandum November 5, 2012 Electric Fields Many people are familiar with static electricity, experienced commonly as a shock after walking across a carpet and then touching a doorknob. What may be less familiar is the importance of actually reaching for the doorknob. The electric field, which is created by the accumulated static electricity, is concentrated at the ends of outstretched fingers when reaching for the doorknob. It is this concentrated electric field which causes an electrical breakdown of the air and results in a small shock. A similar process occurs at the surface of high -voltage power -line conductors such as those used on HVDC transmission lines. The electric field surrounding a transmission line becomes concentrated on surface irregularities such as nicks or debris and causes the electrical breakdown of air, just like in the example of the doorknob. When this happens on a transmission line, a tiny amount of energy is released. This energy is called corona. One of the effects of corona is radio noise which has the potential to affect television and radio reception. This is illustrated by the dark blue curve in Figure 1, which represents the magnitude of corona - generated radio noise. The radio noise from the HVDC line decreases rapidly with frequency so that devices operating at higher frequencies (such as GPS, cell phones, and wireless Internet) are far less likely to be affected by radio noise than devices which operate at lower frequencies (such as amplitude -modulated [AM] radio stations). This source of radio noise is most intense directly beneath transmission lines and decreases rapidly with distance away from the lines. GPS Cell Phone so Radio Noise m** AM Radio ® FM Radio. l Cell Phone Wi-Fi ME UPS L NUN RTR Figure 1. 0 HOOPS AM' Fhf. RTK Wi less lm 0.1 MHz I MHz 10 MHz 900 MHz 1000MH' 5 4 a e a 4 4 in A11111114 11111 rnewelllt111 Magnitude of corona -generated radio noise and frequency range of various technology [I 1002567.000 FOTO 1112 WBO2 h Technical Memorandum November 5, 2012 Television and Radio Reception The radio noise produced by corona associated with overhead transmission lines can occur at frequencies that are used for the transmission of radio signals; however the power of radio noise from a transmission line decreases rapidly with increasing frequency as shown in Figure 1. While radio noise from a transmission line may exist at any frequency between 0.5 megahertz (MHz) and 1,000 MHz, it more strongly affects devices operating at lower frequencies such as AM radio signals (520 to 1,720 kilohertz [kHz]). Frequency modulated (FM) radio stations (transmitting at a frequency between 88 and 108 MHz) generally are not affected by radio noise from transmission lines because their frequency of operation is much higher and because their mode of operation is different. In the past, radio noise was also a concern for the video portion of analog television signals; however, this is no longer the case in the United States because broadcast television stations have switched to digital broadcasting and no longer transmit older analog AM video signals. Cell Phones Also shown in Figure 1 is the frequency band of cell phones that receive and transmit radiofrequency (RF) signals ranging from 850 MHz to 2,150 MHz. While transmission lines can produce measurable radio noise in the AM RF band, the radio noise from a HVDC transmission line is so weak at the high frequencies used by cell phones it does not interfere with a cell phone's functioning even when nearby a HVDC transmission line. Wireless Internet Most wireless internet operates at a frequency of 2.4, 3.6, or 5 gigahertz (GHz). As shown in Figure 1, the level of radio noise from a HVDC transmission line is so small at these frequencies that it effectively does not overlap with wireless internet signals and, therefore, does not affect wireless internet function. 1002567.000 FOTO 1112 WBO2 3 Technical Memorandum November 5, 2012 Global Positioning System GPS is a space -based navigation system that relies on signals from orbiting satellites above Earth to establish the position of a GPS receiver on the ground. This concept is illustrated in Figure 2, in which satellites are synchronized to simultaneously transmit a signal containing information about the time and location of each satellite. A receiver on the ground collects the signals from three or more of these satellites and uses the information to determine its location. Figure 2. Orbiting satellites Under ideal conditions, the information that reaches the GPS receiver is exactly the same as the information sent by the satellite and the receiver can calculate a precise and accurate location. Errors in the calculated location can occur, however, if the quality of the signal is degraded somewhere between the satellite and the receiver. This can occur if another RF signal interferes with the reception of the GPS signal —a phenomenon comparable to listening to someone speak across a noisy room. Their voice (signal) may be drowned out by all the other "noise" in the room. Another source of GPS signal degradation is distortion of the signal itself —comparable to listening to someone speak on a windy day or listening to a conversation through a thick wall. In these cases, the message is "blown away" or "blocked" before it reaches you. A well-known limitation of GPS is that buildings and trees can physically block the signal. This blocking effect theoretically also can be caused by transmission line towers, although they present a very much smaller cross section. Naturally -occurring sources of RF (e.g., 1002567.000 FOTO 1112 WBO2 4 Technical Memorandum November 5, 2012 geomagnetic storms) and man-made sources of RF (e.g., television transmitters) sometimes are reported to interfere with GPS signals because these sources produce interference in the same frequency range as GPS signals. GPS signals are transmitted at a far higher frequency, however, than the radio noise of a HVDC transmission line as shown in Figure 1. Measurements taken beneath HVDC transmission lines have shown no significant signal degradation from radio noise or signal blocking by towers and no effect on the proper function of a GPS receiver [1]. A more common problem for GPS receivers is the distortion of the signal as it passes through random fluctuations in the ionosphere. Like spoken words on a windy day, sometimes some of the GPS message gets through, but it is often distorted and in need of clarification or correction. To address this problem, modern GPS receivers can receive corrections from a number of satellite -based systems with frequencies above 1 GHz to improve the accuracy of positional location [1-4, 6-10]; this is called differential GPS (DGPS). Some GPS systems also make use of real-time kinematic (RTK) technique to improve the accuracy of the GPS location information by making use of the ultra high frequency (UHF) range [2, 10]. Since the frequency bands of these systems are far higher than the primary radio noise frequencies produced by a HVDC transmission line [4, 11], signal interference is unlikely to occur [1]. One scenario where an HVDC transmission line may have some effect on GPS performance is on a system using Nationwide Differential GPS (NDGPS), which is a land -based GPS correction system used in the United States and formerly along the southern border of Canada that was developed to improve GPS accuracy when GPS first became available [2]. NDGPS uses lower frequencies to send correction signals and can sometimes overlap with the primary radio noise frequencies discharged from a HVDC transmission line [5, 11]. The likelihood of interference in each situation will depend on the GPS receiver's distance to the line, as well as its distance to the closest NDGPS antenna. A momentary loss of NDGPS signal, however, should not substantially affect the accuracy of the overall positioning system. Though there is a potential for NDGPS interference by HVDC transmission lines in some locations, NDGPS has been mostly supplanted by newer technologies, and has been eliminated in most land locations in Canada [12]. 1002567.000 FOTO 1112 WBO2 Technical Memorandum November 5, 2012 GPS Use in Agriculture Extensive measurements made with two agricultural/survey grade GPS receivers around two HVDC transmission lines did not show signal reception or degradation, tower signal blocking, or interference to the reception of RTK positional correction signals above 450 MHz used for farming operations [1]. In addition, since RTK correction signals are transmitted from antennas that are typically only a few meters high, HVDC transmission line towers are not likely to block line -of -sight signals from these sources. In cases where such an event was to occur, repositioning the RTK base station antenna should resolve the issue. Signal degradation can occur due to other unrelated signal reflections and the overall performance of a GPS guidance system in agriculture depends upon a high -quality receiver, installed properly, with good positional correction from an independent source. Cochlear Implants In addition to causing radio noise, the electric fields and related corona phenomena of HVDC transmission lines can also lead to a small accumulation of charge on nearby objects. Since there have been reports of damage to cochlear devices caused by the buildup of far larger amounts of static charge, such as from children sliding down plastic gym slides, this possibility has been considered for HVDC transmission lines. Cochlear implants are devices with a small external microphone and a surgically implanted receiver in the auditory portion of the inner ear, which can provide partial hearing to some persons with severe hearing loss. Provided the cochlear implants have been tested for electromagnetic immunity as set forth in the International Electrotechnical Commission's (IEC) medical electrical equipment standards 60601-1-2 and 60601-4-2 [13], the device should also provide immunity to such effects for HVDC transmission lines. 1002567.000 FOTO 1112 WBO2 6 Technical Memorandum November 5, 2012 Magnetic Fields Static (i.e., direct current) magnetic fields are produced by a number of man-made sources, as well as many natural phenomena. The most prevalent static magnetic field is produced by the Earth as a result of the constant flow of current deep within its core —called the geomagnetic field. It is this field that is used for compass navigation. The geomagnetic field ranges in intensity from 300 to 700 milligauss (mG), varying with latitude. It is highest at the magnetic poles and lowest at the equator. In the northern United States, the strength of the geomagnetic field is approximately 550 mG [14]. HVDC transmission lines are also a source of static magnetic fields and, depending on the transmission line's orientation with respect to the geomagnetic field, the magnetic field from an HVDC transmission line can either add to or subtract from the strength of the Earth's geomagnetic field. The static magnetic field levels below overhead HVDC transmission lines are similar to or less than the static magnetic field of the Earth. Unlike electric fields and magnetic fields from power systems that transmit alternating current, neither the electric fields nor the magnetic fields of HVDC transmission lines induce significant voltages in objects or nearby persons. Hence, for a HVDC transmission line, only the direct effects of the magnetic field exposure is of interest with respect to implanted medical devices such as cardiac pacemakers, implantable cardioverter defibrillators (ICDs), and pressure shunts since no significant, indirect effects of induced currents and voltages occur. Pacemakers and Implantable Cardioverter Defibrillators Pacemakers and ICDs are small, battery -powered devices that are implanted inside patients at risk for various heart conditions. These devices generate an electrical impulse either to regulate the beating of the heart (pacemaker) or to shock the heart back into a normal rhythm (ICDs), when necessary. The magnetic fields of HVDC transmission lines are too weak to affect these devices as explained below. 1002567.000 FOTO 1112 WBO2 Technical Memorandum November 5, 2012 The Association for the Advancement of Medical Instrumentation (AAMI) has reviewed important parameters and developed recommendations and standards for pacemakers and ICDs that are designed to ensure their safe and proper operation. The AAMI standard states that pacemakers and ICDs shall not be affected by static magnetic fields of up to 1 millitesla (mT) (equivalent to 10,000 mG) and shall not remain functionally affected after exposure to static magnetic fields of up to 50 mT (500,000 mG) [15]. The background level of the geomagnetic field in the northern United States is approximately 550 mG and the increase from a Clean Line transmission project is estimated to be 300 to 600 mG. Therefore, the exposure of a person with an implanted pacemaker or ICD, even directly under the transmission line, will be approximately 10 times below the lower AAMI recommended limit of 10,000 mG. If a patient does have a concern about the compatibility of their device with any source, they should consult their physician. Pressure Shunts Several medical conditions can lead to increased pressure on the brain from the accumulation of excess fluid, which can occur if fluid flow out of the skull is blocked, if fluid cannot be absorbed properly back into the blood, or if too much fluid is produced by the brain. This condition is treated by a shunt that regulates the amount, flow, and pressure of fluid within the brain and opens to allow excess fluid to drain from the skull. Since these shunts are inaccessible after their implantation, their settings cannot be changed by standard methods and powerful magnets are often used to change the valve settings on the shunts. Current research indicates that the valve setting of some hydrocephalus shunts can be altered by static magnetic fields with a minimum strength of 3 mT (30,000 mG), but there is no reported effect on hydrocephalus shunts below this level [16, 17, 18]. As described above, even directly under the transmission line, where the magnetic field from a Clean Line transmission project is highest, the magnetic - field level will be approximately 30 times below that shown to possibly alter the operation of shunts. 1002567.000 FOTO 1112 WBO2 8 Technical Memorandum November 5, 2012 References [1] Bancroft JB, Morrison A and Lachapelle G, "Validation of GNSS under 500,000 V Direct Current (DC) transmission lines". Computers and Electronics in Agriculture 83:58-67, 2012. [2] ARINC Incorporated for US Department of Transportation, Federal Highway Administration, "NDGPS Assessment Final Report". http://www.navicen.uscg.gov/pdf/ndgps/ndgps%20assessment%20 report_final.pdf [3] National Space -Based Positioning, Navigation and Timing Coordination Office. "Global Positioning System Augmentations". http://www.gps.gov/systems/augmentations [4] Silva JM and Olsen RG, "Use of global positioning system (GPS) receivers under power - line conductors". IEEE Transactions on Power Delivery 17:938-944, 2002. [5] Silva JM, "Evaluation of the potential for power line noise to degrade real time differential GPS messages broadcast at 283.5-325 kHz". IEEE Transactions Power Delivery 17:326-333, 2002. [6] Global Positioning System Standard Positioning Service Performance Standard, 4th Edition, September 2008. http://pnt.gov/public/docs/2008/spsps2008.pdf [7] Department of Transportation, "Global Positioning System Wide Area Augmentation System Performance Standard, US Department of Transportation and Federal Aviation Administration," October 31, 2008. http://www.gps.gov/technical/ps/2008-WAAS- performance-standard.pdf [8] OmniSTAR, "OmniSTAR: The Global Positioning System." http://www.omnistar.com/ [9] Research and Innovative Technology Administration "Nationwide Differential Global Positioning System — Capabilities and Potential," September 23, 2009. http://www.navicen.uscg.gov/pdf/cgsicmeetings/49/Reports/[31]NDGPS Update_CGSIC_SL_0 92309.pdf 1002567.000 FOTO 1112 WBO2 Technical Memorandum November 5, 2012 [10] John Deere Ag Management Solutions, "StarFire RTK 900 and 450 MHz Radios Operator's Manual." http://stellarsupport.deere.com/en_US/support/pdf/om/en/ompfp 10776_mhz.pdf [11] Transmission line reference book, HVDC to ± 600 kV based on HVDC Transmission Research Project PR 104, sponsored by the Electric Power Research Institute and the Bonneville Power Administration. Vancouver, Washington: Bonneville Power Administration, 1976. [12] CDGPS. http://web.archive.org/web/20101114025153/http:/cdgps.com/e/index.htm [13] International Electrotechnical Commission (IEC). Medical electrical equipment — Part 1- 2: General requirements for basic safety and essential performance — Collateral standard: Electromagnetic compatibility —Requirements and tests. IEC 60601-1-2: 2001-9, 2001. 14] International Association of Geomagnetism and Aeronomy, Working Group V -MOD. International Geomagnetic Reference Field: the eleventh generation. Geophysical Journal International, 183: 1216-1230. doi: 10.1111/j.1365-246X.2010.04804.x [15] American National Standard (ANSI). Active implantable medical devices — Electromagnetic compatibility — EMC test protocols for implantable cardiac pacemakers and implantable cardioverter defibrillators. ANSI/AAMI PC69:2007 [16] Schneider T, Knauff U, Nitsch J, and Firsching, R, "Electromagnetic field hazards involving adjustable shunt valves in hydrocephalus." J. Neurosurg 96:331-334, 2002. [17] Lavinio A, Harding S, Czosnyka, M, Smielewski P, Richards HK. Pickard JD, and Czosynka ZH., "Magnetic field interactions in adjustable hydrocephalus shunts." J. Neurosurg Pediatrics 2:222-228, 2008. [18] Strahle J, Selzer BJ, Murzszko, KM, Garton HJL, and Maher CO, "Programmable shunt valve affected by exposure to a tablet computer." J. Neurosurg Pediatrics 10:118-120, 2012. 1002567.000 FOTO 1112 WBO2 10 Esther Gesick From: Sent: To: Subject: Sent from my iPad William Garcia Tuesday, October 01, 2013 8:37 AM Esther Gesick Fwd: Xcel Energy -Public Service Company DCP Lucerne -Monfort 115kV Transmission Line Project - Update Begin forwarded message: From: Dennis Hoshiko <dhoshiko@yahoo.com> Date: October 1, 2013 at 8:14:58 AM MDT To: William Garcia <WGarcia@co.weld.co.us>, Barbara Kirkmeyer <bkirkmeyer@co.weld.co.us>, Sean Conway <sconway@co.weld.co.us>, Douglas Rademacher <DRademacher@co.weld.co.us>, Mike Freeman <mfreeman@co.weld.co.us> Subject: Fw: Xcel Energy -Public Service Company DCP Lucerne -Monfort 115kV Transmission Line Project - Update Reply -To: Dennis Hoshiko <dhoshiko@yahoo.com> All, Concerning CASE NO. USR13-0032 to be heard at tomorrow's Commissioner meeting, I thought you should see first-hand evidence of Xcel Energy's strategic conduct towards us beforehand. Xcel's proposed power line will cross 1 miles of our properties and permanently incumber nearly 10 acres of our prime, irrigated farm lands forever. As you can see from the following email to us from Xcel, they will not give us any indication of what they intend to pay us for their right-of-way until the Board of County Commissioners approves their project. Once that happens, they have the power of condemnation and we will be at their mercy regarding compensation. I look forward to seeing all of you at tomorrow's hearing. Until then, may God richly bless you. Many thanks, Dennis Hoshiko (970)381-1161 i Forwarded Message From: "Holscher, Derek D" <Derek.D.Holscher(axcelenergv.com> To: 'Dennis Hoshiko' <dhoshiko 7a yahoo.com>; 'Jordan Hungenberg' <jordan.hungenberq(a hungenbergproduce.com> Cc: "Harris -Coffey, LaChelle R" <LaChelle.R.Harris-Coffey xceleneray.com> Sent: Friday, September 27, 2013 3:00 PM Subject: Xcel Energy -Public Service Company DCP Lucerne -Monfort 115kV Transmission Line Project - Update Gentlemen, First of all, I hope your operations aren't being too impacted by the rain currently taking place in the area. Per our conversation this afternoon I wanted to give you a quick update before the Board of County Commissioners hearing next week. BOARD OF COMMISSIONERS DATE: October 2, 2013 TIME: 10:00 a.m. Hearing Room, Weld County Administration Building , 1150 O Street , Greeley , Colorado As we stated at the Planning Commission hearing on 9/17, we are ceasing our negotiation activities until we get an approval on the route. At that time we will begin to schedule the surveyors to prepare legal descriptions and get our appraiser on board to start the site specific appraisals. At this time we have an updated value study but in order to assure the most accurate and fair value, we need to perform the site specific appraisals. Once we've obtained all the data, we'll schedule meetings with landowners individually to begin negotiations. I'm not sure if either of you have had time to contact Valley about the central pivot design but if so, make sure to send any invoices/bills to my attention. I know you both are very busy right now but please feel to call me if you have any questions or concerns. Thank you, Derek Derek Holscher Xcel Energy I Responsible By Nature Principal Agent, Siting and Land Rights 1800 Larimer Street, 4th Floor, Denver, CO 80202 P: 303.571.7284 C: 720.837.4742 F: 303.294.2088 E: derek.d.holscheraaxcelenergv.com 2 DCP Lucerne -Monfort 115kV Transmission Line Project 1041 & Use by Special Review Permit r Y` Weld County Board of County Commissioners Hearing Greeley, Colorado October 2, 2013 Applicant Information Xcel Energy is a major U.S. electric and natural gas company with regulated operations in eight Western and Midwestern states 3.4 million electric customers and 1.9 million natural gas customers Utility company name is Xcel Energy: however. the legal owner and operator of utility facilities in Colorado is Public Service Company of Colorado (PSCo) All utility facilities and related land rights, including fee property. easements and permits. are owned by. operated by, and held in the name of PSCo EXHIBIT Project Overview Ai st, Requesting approval for the proposed Project under Weld County Code Chapter 23 requirements governing Use by Special Review (USR) and Chapter 21 requirements governing Areas and Activities of State Interest (AASI) Sib Construction of a new single circuit 115kV transmission line Beginning at PSCo's Monfort Substation to DCP Midstream's Lucerne gas compressing plant Line requires a new 75 -foot right-of-way crossing approximately 2.5 miles - primarily agricultural lands 3 2 T' Purpose and Need ® Serve the electrical needs of DCP (Duke Conoco Phillips), midstream segment of the natural gas industry Rapid expansion in the area as new drilling technologies allow more oil and gas to be produced Gas gathering and processing capacity needs to be expanded in order to meet the growing production DCP proposing expansion of Lucerne gas compressing plant, including a new substation to facilitate electricity for the expansion 5 Purpose and Need - Continued DCP requested that PSCo construct a radial 115kV transmission line from the our Monfort Substation to their new substation DCP submitted separate application for substation and gas processing plant expansion, already approved by BOCC This application only covers the transmission line between our Monfort Substation and DCP's proposed substation Anticipated in-service date for the transmission line project is October 2014 3 ► Phase 1: Identify opportunities and constraints by integrating available land use and environmental data with a Geographic Information System Phase 2: Identify alternative corridors within the opportunity areas identified in Phase 1, conduct field reconnaissance, and develop a short- list of alternative corridors to analyze in Phase 3 Phase 3: Compare alternative corridors using quantitative data and select a preferred corridor yrs� � Transmission Line Siting — Public Input ► Public involvement provides important input in the siting process PSCo sent two different mailings and held one public open house meeting Public input focused on three topics: ► Location of line -impacting agricultural operations ► Less residential impacts ► Engineering characteristics 4 nir Fr /4 Transmission Line Siting — Public Input nreginOVI.. NC/ letn.e le MUntut 11S-.1 i....Mssate Nn u- w* . 1.. .r.w ....ui.rn :.MfYw•.iwn .. ... — -- u .• .r.„ • .. T V.w.V'.... . ... wr ,,r.r ...e.•• — ....• • u� met V amelennee 5 ! Project received opposition from two different landowners Planning Commission Hearing 8/6/2013 ► Interferes with future center pivot irrigation plans ► Bisecting parcels impedes agricultural operations (spraying) and future development opportunities Concerns with project possibly lowering property values Avoid denial recommendation from Planning Commission — PSCo requested continuation to work with landowners 11 Landowner Meetings - Revisions ► PSCo meet with landowners on two different occasions ► Center Pivot Irrigation Plans ► Alternatives around Bliss & Hungenberg to avoid bisecting parcels Options along North 1st Avenue Field check obstructions — trees, well locations, tank batteries and irrigation wells Follow-up meeting to discuss details of new preferred alignment 12 6 Transmission Structure Type Characteristic Value Tote! Length Rapid 2 mast atpnahWayWM. )5 feel Spa, Oetlaer 59octlns typal wine e0GSQ0 lent Nana or Seventies cot Met ty,tat Range 101,13 IMpil at Sburnnet typa 70 net ago ground Wgnt N Seuctutes typal Rage 70b 120 In abase pound Ma Ground Celt 6wiw.e Calaxv M 1M V., Round Gest Beneath Caduaor Oa Ronde 24 hot Typical Tangent Structure Typical Angle Structure Configuration 7 Characler,sUc Value Yottga 1 i 5MY Taal Length Applaa 2 5 miles ROMQiWay WAIIII '5 tnr Span Behind Saurian Types, Range 4O0450 Mot Munger of Structures pat Ma* Typlul Range 10to 12 Hugntol Stunts Typical 551M atom gr0un0 Hegm of SeuMea Typical Range 05 N 1;0 Net Moe groan Min Ground Onr Gnarls Gonda., 24 teat ., :tared 0w Beneath Cena nce Ow Roads 24 lee( Land Rights - Project Land Requirements Easements required for construction, maintenance & access Approximately 22 acres will need to be acquired in Weld County Access by landowner within easement normally not restricted Land between structures remain available for farming or other operations Prohibited activities include those that reduce the ground -to -line clearance or jeopardize the integrity of support structures 16 8 ► Hoshiko - 7.6 Acres, Poles — 392.5 ft2/.009 Acre ► Hungenberg - rt. 5.6 Acres, Poles — 314 ft2/.007 Acre DCP - 3.2 Acres, Poles — 235.5 ft2/.005 Acre Weld County Right to Farm - Farming practices can still continue 'SW 111-11.11e Farming Operations Under the Line taw— ra._.soernbers e. r r 11111111111111 9 Farming Operations Under the Line Land Rights — Acquisition Process ► Survey Permission Public Service will meet with each individual landowner to ask for permission to survey Compensation Public Service will use market data to determine fair and appropriate compensation Public Service will make every effort to reach a fair and reasonable settlement Construction and Operation Public Service will provide compensation for damage to crops, pasture land, or other property affected during construction or maintenance 20 10 Project Schedule Weld County Permitting ► Easement Acquisition ► Begin Construction Milestone Install Foundations Line Construction In Service Date 4/25/13 - 10/2/13 3/26/13 - 3/24/14 6/2/14 6/23/14 - 7/18/14 8/4/14 - 10/1/14 10/1/14 21 11 Karla Ford • From: Sent: To: Subject: Brad Yatabe Tuesday, November 26, 2013 10:53 AM Esther Gesick; Karla Ford FW: DCP-Lucerne Transmission Line - USR13-0032 Can you scan the below email into the record for tomorrow's hearing? Thank you. Brad Yatabe Assistant Weld County Attorney 1150 O Street Mailing Address: P.O. Box 758, Greeley, CO 80632 tel: (970) 356-4000 ext. 4396 fax: (970) 352-0242 STATEMENT OF CONFIDENTIALITY & DISCLAIMER: The information contained in this email message is attorney privileged and confidential, intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copy of this email is strictly prohibited. If you have received this email in error, please notify us immediately by replying and delete the message. •From: Holscher, Derek D fmailto:Derek.D.Holscher©xcelenerclv.com] Sent: Tuesday, November 26, 2013 10:45 AM To: Kim Ogle Cc: Brad Yatabe Subject: DCP-Lucerne Transmission Line - USR13-0032 Kim, Even though Weld County staff has requested the continuance of our project (DCP-Lucerne 115kV Transmission Line_USR13-0032), PSCo has no objections and supports the request for continuance. Let me know if you need anything else. Thanks, Derek Derek Holscher Xcel Energy I Responsible By Nature Principal Agent, Siting and Land Rights 1800 Larimer Street, 4th Floor, Denver, CO 80202 P: 303.571.7284 C: 720.837.4742 F: 303.294.2088 E: derek.d.holschernaxcelenergv.com MEMORANDUM To: Board of County Commissioners From: Kim Ogle, Planning Services Subject: Continuance of Case No. USR13-0032 Public Service of Colorado Date: November 27, 2013 The Department of Planning Services is requesting a continuance of case no. USR13-0032 for a Site Specific Development Plan and Special Review Permit for a Major Facility of a Public Utility (one (1) 115kV Transmission line extending approximately 2.5 miles) in the A (Agricultural), R-1 (Low Density Residential), and 1-3 (Industrial) Zone District. This is request is made on behalf of staff who are unable to be present today due to a previous commitment. Staff further requests that this case be continued to the December 11, 2013 Board of County Commissioner's hearing docket. 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