ML17297B524
| ML17297B524 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 05/03/1982 |
| From: | ACOUSTIC TECHNOLOGY, INC. |
| To: | |
| Shared Package | |
| ML17297B523 | List: |
| References | |
| NUDOCS 8205140426 | |
| Download: ML17297B524 (353) | |
Text
{{#Wiki_filter:DESIGN OF. PUBLIC WARNING SYSTEM (TASK 1 THROUGH 0) PALO VERDE NUCLEAR GENERATING STATION Prepared for: ARIZONA PUBLIC SERVICE COMPANY PHOENIX, ARIZONA Prepared by: Acoustic Technology, lnc. 2tIO Commercial Street Boston, MA 02109 (QQQo) ACOUFPIC TECHNOLOGY INC. 820514042b 820503 PDR ADOCK 05000528 F PDR
TABLE OF CONTENTS Pacae
SUMMARY
I. INTRODUCTION I I. DESIGN CONSIDERATIONS 6- 8 III. ACOUSTIC CRITERIA FOR SIREN SYSTEM IV. SIREN ACOUSTIC COMPUTER MODEL 10- 12 V. VERIFICATION OF SIREN ACOUSTIC MODEL 13- 14 Table 1: Comparison of Measured and Predicted Sound Level of Sirens VI. SELECTION OF SIREN LOCATIONS 15- 21 Table 2: Location of High Power Sirens t Vll ~ TONE ALERT RADIOS AS A NOTIFICATION SYSTEM 22 23 VI II. ADDITIONALWARNING SYSTEMS 24 IX. COST ANALYSIS OF ALTERNATIVE WARNING SYSTEMS 25 27 Table 3: Cost Analysis of Alternative Warning systems Over the Projected Lifespan of Palo Verde Nuclear Generating Station X. DESCRIPTION OF RECOMMENDED ALTERNATIVES 28 - 30 APPENDIX 1: Task 1 and 2. Site Evaluation and Ambient Noise Survey APPENDIX 2: Computer Print-Out of Sound Pressure Levels for High-Power Sirens in Alternatives 1, IB, 2 and 2B APPENDIX 3: 60 dBC Sound Contours for High-Power Sirens in Alternatives 1, 1B, 2 and 2B e Iio)i ACOUSTIC TECHNOLOGY INC.
LIST OF MAPS MAP 1: POPULATION DENSITY OF PALO VERDE NUCLEAR GENERATING STATION PLUME EXPOSURE EPZ MAP 2: LAND USE WITHIN PALO VERDE NUCLEAR GENERATING STATION PLUME EXPOSURE EPZ MAP 3: EXISTING POWER DISTRIBUTION MAP 4: NOAA COVERAGE OF EPZ MAP 5: ALTERNATIVE 1: Location and 60 dBC Acoustic Coverage of High-Power Sirens MAP 6: ALTERNATIVE 1B: Location and 60 dBC Acoustic Coverage of High-Power Sirens MAP 7: ALTERNATIVES 2 and 2B: Location and 60 dBC Acoustic Coverage of High-Power Sirens
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SUMMARY
This report presents Acoustic Technology, Inc's (ATI's) alternative designs for the prompt notification of the public within the plume exposure Emergency Planning Zone (EPZ) of Palo Verde Nuclear. Generating Station. The report marks the final step of the tasks outlined in the proposal submitted to Arizona Public Service Company (APS) in March, 1981. ATI's main objective in designing its public notification systems are to design systems which meet the regulatory requirements outlined by FEMA and the NRC, are cost effective, and are acceptable both to the people living within the EPZ and to the state, local and federal government officials involved in the operation of the nuclear plant. Several warning methods have been analyzed in designing these alternatives, including mobile sirens,'high power sirens, telephone notification and tone alert radios. The alternatives presented reflect the public interests of the people involved in the operation of'VNGS. ATI is confident- that all of the alternatives will meet the guidelines set forth in FEMA's CPG-17 Outdoor Warning Systems Guide and the NRC NUREG-0654 criteria. Alternative 1 proposes notifying the entire population within the EPZ of an emergency using high power sirens. Through computer analysis, thirty-six sirens have been located along existing power lines to effectively cover all populated areas within the extended EPZ with a minimum sound level of 60 dBC. ln this alternative, the normal 10 mile EPZ has been extended by the Arizona Division of Emergency Services on the eastern edge to include some higher density areas including the town of Palo Verde and the relocated town of Allenville. The implementation cost of this alternative would be approximately $ 540,000 and the operational costs over the life of PVNGS are projected to be $ 620,000. Alternative 1B covers all populated areas in the normal 10 mile radius EPZ. t Q(QOe)>~ ACOUSTlC TECHNOLOGY INC.
Thirty high power sirens are employed to cover populated areas with a minimum sound level of 60 dBC. The implementation costs would be approximately $ 450,000 and the operational costs are projected to be $ 516,000. Despite its relatively high cost, these alternatives have advantages in the fact that they are easily monitored and tested systems. They are also likely to meet wide public acceptance. Alternative 2 is the most cost effective alternative when considering costs over the projected lifespan of PVNGS. High power sirens are used to cover areas where the population is concentrated, while tone alert radios are used to notify the rest of the population. It is feasible that a 130 dB siren (a siren which produces a sound level of 130 dB 100 feet from the mouth of the horn) will be manufactured by the time PVNGS purchases its warning system, Alternative 2 uses the 130 dB figure in its computer analysis of siren sound coverage. In Alternative 2, 10 high power sirens have been analyzed and located with ATI's computer program to cover the more densely populated areas within the EPZ with a 60 dBC sound level. As in Alternative 1, the EPZ has been extended on the eastern edge. The sirens would cover 88% of the residences within the EPZ. Approximately 150 residences/travel trailers/mobile homes would not be covered by the minimum sound level. These residences would be notified of an emergency by tone alert radio. The implementation costs of this alternative are approximately
$ 175,000. Because of high replacement rate projected for the radios, the operational costs of over the life of PVNGS would be much higher; approximately $ 427,000. Alternative 2B uses sirens with a sound level of 122 dB at 100 feet, which are now commercially available, in its computer analysis. With the lower sound level reading, 11 sirens cover 83% of the residences within the EPZ with a'minimum sound level of 60 dBC. Approximately 200 tone alert radios would be used to notify the residences/trailer homes not covered by the sirens.
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The implementation costs of Alternative 2B are approximately $ 175,000. The operational costs are projected to be $ 508,000. The advantage of Alternative 2 and 2B is the lower cost of implementing and operating the system. The main drawback is in monitoring the system, making sure that all radios are completely operational at all times. In Alternative 3, notification of an emergency would be provided completely through tone alert radios. There are no more than 1250 residences, mobile homes and travel trailers within the EPZ of Palo Yerde. This figure includes relocation of the town of Allenville. The initial cost of implementing this system would be low; approximately $ 63,000. However, because of the short life span of the radio (5 years), the cost over the life of the nuclear plant is projected to be approximately $ 2,059.000. The cost analysis of the three alternatives is presented in Table 3. (Q<QQogi ACOUSTIC TECHNOLOGY iNC.
I. INTRODUCTION 0 The nuclear accident at Three Mile 1sland (TMI) underscored the need for better emergency preparedness procedures for commercial nuclear power plant licensees and for state and local officials involved with a general nuclear emergency. In Januar y 1980, the Nuclear Regulatory Commission (NRC) and the Federal Emergency Management Administration (FEMA) issued a document for Interim use and comment entitled Criteria for Pre aration and Evaluation of Radiolo ical Emer enc Res onse Plans and Pre aredness in Support of Nuclear Power Plants (NUREG-0654, FEMA-REP-1). Among other things, this document lists the criteria for prompt notification of the public in the event of a general nuclear emergency. These criteria are presented in Appendix 3 of the NUREG-0654 report:
"Means for Providing a Prompt Notification to the Population."
The final regulation regarding prompt notification was published in the Federal t Register which defines the requirements as follows: "The nuclear power reactor licensee shall demonstrate that administrative and physical means have been established for alerting and providing prompt instructions to the public within the plume exposure pathway EPZ. The design objective shall be to have the capability to essentially complete the initial notification of the public within the plume exposure pathway EPZ within about 15 minutes." Acoustic Technology, Inc., under a contract from Arizona Public Service Company (APS) has designed and analyzed alternative proposals for the prompt notification of the public within the Palo Verde Nuclear Generating Station EPZ. ATI has given full consideration to the requirements of NUREG-0654. The criteria for minimum acceptance of a notification system are stated in Appendix 3 as follows:
'The minimum acceptable design objectives for coverage by the system are:
a) Capability for providing both an alert signal and an informational or instructional me'ssage to the population on an area-wide basis throughout the 10-mile EPZ, within 15 minutes. b) The initial notification system will assure direct coverage of essentially 100-;- of the population within 5 miles of the site. i ACOUSTIC TECHNOLOGY INC.
c) Special arrangements will be made to assure 100% coverage, within 45 minutes, of the population who may not have received the initial notification within the entire plume exposure EPZ." O ACOUSTIC TECHNOLOGY iMC.
I I. DESIGN CONSIDERATIONS Palo Verde Nuclear Generating Station is in Southwestern Arizona near Wintersberg, Arizona and approximately50 miles west of downtown Phoenix. The site of PVNGS and the plume exposure EPZ are entirely within the boundaries of Maricopa County. The station consists of there separate units, the first of which is scheduled to begin commercial operation in May, 1982. When all three units are complete, PVNGS will be able to produce 3,810 MW of electricity, which will be supplied to four states: Arizona, California, New Mexico, and Texas. When Unit 3 goes into operation it will be the largest nuclear plant in the United States. Factors affecting the design of the prompt notification system have been analyzed fully by Acoustic Technology. Key factors include Planning Zone Boundaries, demography, land use, meterological conditions, access to power lines, and existing warning systems. These issues are discussed below: Plannin Zone Boundaries: ln section 1 of NUREG-0654, the Emergency Planning Zone (EPZ) is defined as "the areas for which planning is needed to assure that prompt and effective actions can be taken to protect the public in the event of an accident." The short term "plume exposure" EPZ was selected to be a radius of about 10 miles, depending upon the characteristics of the site. The Arizona Division of Emergency Services has extended the EPZ of Palo Verde approximately 1 1/2 miles beyond the 10 mile radius to the east, making compliance with the requirements outlined in Appendix 3 of NUREG-0654 optional for the extended area. PVNGS. The highest density areas occur in Arlington, six miles to the southeast of PVNGS, in Wintersberg, three miles to the north; in Tonopah, eight miles Qo)+) ACCOST(C TECHNOLOGY INC. to the northwest; and in Palo Verde and relocated Allenville,twelve miles east of the station. Much of the western portion of the EPZ is unihabited. There is only one residence, one travel trailer and two mobile homes within two miles of the plant, all of which are located north of PVNGS. Land Use: Much of the land within the EPZ is uninhabited and unused. The only significant type of land use throughout the area is agricultural. There are fields to the south, the southeast and to the northwest of PVNGS (see map 2). A'griculture appears to be the major industry as well. The extent of the farmland suggests that an outdoor warning system might be more appropriate than an indoor notification system. Meterolo ical Conditions: As will be explained in Section IV, climatic conditions such as temperature, relative humidity and wind speed effect the sound level of any distance from the sound source. The climatic conditions surrounding PVNGS are characterized as desert-like; low relative humidities, infrequent rain, hot summers and mild winters, moderate winds,and large differences between day and night temperatures The warment weather in Arizona is generally in the beginning of July, the coolest is in January. For PVNGS, the normal minimum and maximum temperatures for January are 37.6 F and 64.8 F respectively. The minimum and maximum are 77.5 F and 104.8 F in July. The annual mean temperature i' 70 3oF ln general, the highest relative humidity occurs in the winter and the lowest in the summer. The highest relative humidity each day occurs just before sunrise. The lowest occurs in mid-afternoon, corresponding to the highest daily temperature. The mean annual average humidity is 36%. i~QQ~o) ACOUEnC TECHNOLOGy INC.
The prevailing winds at PVNGS are from the southwest in the spring and summer, and from the east and the northeast in the fall and winter. The average windspeed was found to be 6.4 mph at the 35 foot level. Power Lines: Map 3 shows the existing power lines throughout the EPZ. With exception. of one single-phase line 10 miles to the east of PVNGS adjacent to Luke's Auxiliary Field, all lines amthree-phase lines. They would be suitable for operating any commercially available high power siren. It is cost effective,to locate the sirens along existing power lines rather than extend the lines. Existin Warnin S stems: There are no warning systems within the EPZ which would comply with NUREG-0654 requirements. Presently, there are no public address systems installed in the area which could be integrated with a prompt notification system. The National Oceanic and Atmospheric Adminsitration (NOAA) has a transmitter on South Mountain which regularly broadcasts weather information. t This system is employed in severe weather and during emergencies by emitting a 1050 Hz tone which activates 'radios, then proceeds with a warning message. The NOAA broadcast presently covers all populated areas surrounding PVNGS with the exception of the area to the southeast of Arlington (see map 4). Construction of an additional transmitter in Estrella Mountain park would provide complete NOAA coverage throughout the EPZ. The Emergency Broadcast System (EBS) currently broadcasts through the entire EPZ on several commercial radio stations. It is used to alert the public to any real or potential emergencies. It can be used both to instruct the public in the case of an emergency, and as the actual alerting device. This EBS would activate special receivers using a two tone signal, then broadcast the emergency message and instructions. QQQo ACOUSTIC TECHNOLOGY INC.
Ill. ACOUSTIC CRITERIA OF SIREN SYSTEM 0 NUREG-0654 (Appendix 3) indicates that an acoustic signal of above the average daytime ambient level is an acceptable criterion for the design of a siren system. In addition, this 10 10 dB dB differential above average daytime ambient level is meant to provide a distinguishable signal inside a home of average residential construction under average daytime conditions. NUREG-0654 (Appendix 3) also indicates that the determination of adequate siren sound levels can be achieved by either of two options. Field surveys can be conducted to determine typical daytime ambient sound levels, and the siren system can be designed to achieve 10 dB above this documented ambient. As an alternative to field surveys, in areas with population density below 2,000 persons/square mile, a sound level of 50 dBA can be assumed and the siren system can be designed to produce a minimum of 60 dBC. V/hile the population density throuqhout the EPZ of Palo Verde is less than 2000 people per square mile, Arizona Public Service Company, in its efforts to provide the optimum warning system for PVNGS, chose to conduct an ambient noise survey. Acoustic Technology performed the sound survey from May 6 May 8, 1981. Fifty-two locations were monitored, and the ambient sound level recorded for each. The sites were chosen as representative of the acoustic environment within the EPZ. The result of the field survey indicate that'ambient sound levels are generally below 50 dBA throughout the EPZ. In addition, measurements taken at the 500 Hz band for the 52 locations show ambient noise levels ranging from 24 dB to 50 dB and measurements taken at the 1000 Hz band show levels from 17 dB to 44 dB. Since all commercially available sirens produce tones between 500 and 1000 octave bands, designing 60 dBC sound coverage throughout the EPZ is in compliance with NUREG-0654 guidelines. The results of the sound survey are reported. fully in 0 Appendix 1 of this report.
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IV. SIREN ACOUSTIC COMPUTER MODEL The siren sound levels within the Palo Verde Nuclear Generating Station plume exposure EPZ were calculated by use of a computer model developed by Acoustic Technology, Inc. This model takes into consideration meterologica and topographical conditions which effect sound propagation generated by the sirens. Topographical data is obtained through direct readings of land elevation from USGS maps by superimposing a grid system onto the siren propagation area. The topographical data is used to calculate the attenuation due to the barrier effects caused by the higher elevations which generate acoustic shadow zones that occur behind ridges and hills. In addition, inputs into the computer model are given for siren mounting height, siren sound level at 100 feet, atmospheric conditions, and type of ground cover (snow, trees, vegetation, water, etc.) surrounding each of the siren sites. The computer model calculates the sound attenuation with distance due to hemispherical wave divergence, atmospheric absorption, absorption due to vegetation, trees, and ground effects, upwind shadows, and barrier attenuation. These factors can be* summarized as follows: A. Hemispherical Nave Divergence: The sound pressure level due to hemispherical divergence is uniform in all directions at a rate of 6 dB per doubling of distance. B. Atmospheric Absorption: Molecular (atmospheric) absorption further reduces the sound energy. Absorption is highly dependent on the temperature and relative humidity of the air and is quite pronounced at large distances and at high frequencies. To avoid over or under design of the system, average atmospheric conditions are used as an input for the computer model. C. Vegetation, Trees, and Ground. Effects: Ground attenuation. is a function of the structure and covering of the ground and of the height of the siren and receiver above the
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ground. The ground covering conditions at various directions and distance from the siren to receivers were directly read from, the USCS maps. Sound travels from a siren to a receiver location by two paths: the direct line-of-sight path which is the primary path of outdoor sound propagation, and the ground reflected path. Both of these propagation. paths are subject to sound attenuation due to the effect of the ground cover existing between the siren and the receiver location. The amount of attenua-r tion resulting from the sound propagation along the ground reflected path will depend on whether the ground cover is absorbative or reflective. Tall trees intercept the direct sound propagation path and can attenuate the sound from the siren substantially at the receiver location. D. Wind Shadows: Wind gradients near the ground are nearly always positive; that is, the windspeed increases with height. As a result, a shadow zone is most commonly encountered upwind from' siren because there the wind gradient bends the sound rays upward. Downwind, the sound rays are bent downward, and no shadow zone is produced. Crosswind, there is a zone of transition. However, as a conservative measure, the shadow zone is assumed to be consistent in all directions from the sound source. This is to compensate for fluctuations in the direction of the wind. E. Barrier Attenuation: A mound of earth, a hill, or a structure, if large enough, is a partial barrier to sounds, and it can provide a moderate amount of sound reduction within its shadow zone. The attenuation from a barrier is estimated by the model. The model will determine the effective barrier height which is the height e above the line-of-sight from the siren to the receiver location. The other
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two essential dimensions are the distance from the siren to the barrier and from the barrier to the receiver. This data is used to calculate the attenuation of the barrier. Another factor in the ATI acoustic computer model is the siren sound level rating at 100 feet. Vendors of commercial sirens claim that their sirens produce a sound level of 125 dBC at 100 ft. However, these sirens were tested in the field and in, an anechoic chamber (free field test) and the actual recorded sound level was approximately 122 dBC for dual tone rotating sirens. As a result of actual laboratory and field testing, the siren sound level at 100 feet that is used in the ATl computer model is 122 dBC rather than 125 dBC as claimed by siren vendors. The ratings of 122 dBC for commercial sirens should be considered as further conservatism in our design. The sound attenuation is calculated by the computer model for each siren in each alternative and the 60 dBC contour is determined. The corresponding sound level data for each siren within its propagation range is presented in tabular form in Appendix 2 and in graphical form in Appendix 3. e ~<Q(Cog+>> ACOUSTIC TECHNOLOGY INC.
I V. VERIFICATION OF SIREN ACOUSTIC MODEL In order to verify the accuracy of the Acoustic Technology, Inc. model, the measured sound levels were compared to those predicted as shown in Table l. Excellent agreement was obtained from all data points under consideration. It is noteworthy that the model predicted values are slightly less (1-3 dB) than those measured values. This indicates a further conservatism in determining the sound level contours. e
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COMPARISON OF MEASURED AND PREDICTED SOUND LEVELS OF SIRENS Distance Between Distance Model Measured Predicted and from the Predicted Background Sound Measured Sound Siren Level Noise Level Level Level Test in ft. Ground Condition dBC dBC 5BC dB Beaver Valley 5, 600 Variable topography Vegetation 49 45 50 Siren Test 1, 100 Housing, trees and vegetation 95 53 97 500 Flat - Grass 107 58 109 -2 3,600 Slight topography - vegetation 75 78 -3 Three Mile Island Test 4,500 Flat Grass - Housing 77 79 <~(y) St. Louis County Test 1, 000 Flat Green Grass 100 102 8 n O I 0 TABLE 1 A
Vl. SELECTION OF SIREN LOCATIONS ' I In Alternatives 1 and 18, siren locations were selected to cover all populated areas within the EPZ, 'regardless of population density or concentration. Arizona Public Service Company provided ATI with maps which showed the power distribution throughout the area. In order to avoid the extra cost of extending power lines to installed sirens, sirens were located close to the existing lines wherever possible. Tentative locations for sirens were chosen and analyzed with ATI's computer model. Several computer iterations were made before achieving the required 60 dBC acoustic coverage throughout the populated areas of the EPZ. In areas where no power is available, low power battery operated sirens could be employed. There is one such case in Alternative I. The siren is used to cover an area in the northeast corner of the EPZ that is without power lines (see map 1). ln Alternative 2 and 28, siren locations were selected primarily on the basis e of high population density. model to determine the extent These locations were then analyzed with the computer of the 60 dBC acoustic coverage. Sirens were again located along existing power lines to avoid additional cbsts. In addition, some effort was made to place,all sirens at higher elevations than the areas surrounding them. Initial computer iterations of the model indicated that placing sirens at higher elevation points will gain larger siren coverage. This is because the effects of vegetation, trees and barriers are minimized. Table 2 provides a description of the siren locations for each alternative. The location of the 36 sirens, and the extent of the 60 dBC acoustic coverage for Alternative 1 is presented on Map 5. The same information for Alternative 18 is presented in Map 6. Map 7 shows the location and the 60 dBC siren acoustic coverage of the sirens for both Alternative 2 and 28. (Q~e)hi ACOUSTIC TECHNOLOGY INC.
TABLE 2 ARIZONA PUBLIC SERVICE COMPANY PALO VERDE NUCLEAR GENERATING STATION Siren Number Location (dBC) Indian School- Road Buckeye 122 Johnson Road Buckeye 122 Luke Auxiliary Field 55 Buckeye 122 Johnson Road at Roosevelt Canal Buckeye 122 Palo Verde Road Buckeye 122 Base Line Road Buckeye 122 Buckeye Canal Buckeye 122 Hassayampa Buckeye 122 Narramore Road Buckeye 122 e 10 Wickenberg Hassayampa Hassayampa Cotton Gin Road Arlington Arlingtoh 122 122 12 Arlington Road Arlington 122 13 Desert Rose Road Arlington 122 14 Gila Compressor Station Arling ton 122 15 Broadway Road Arlington 122 16 Wickenberg Hassayampa Road Arlington 122 17 Hassayampa Road ArI in g ton 122 18 Buckeye Salome Road Arlington 122 19 Phillips Wash Arlington 122 20 Indian School Road Arlington 122 21 Indian School Road Arlington 122 22 Hassayampa Road Arlington 122 23 Winter sberg Road Arlington 122 QQQQi~ ACOUSTlC TECHNOLOGY INC.
ALTERNATIVE 1 (cont'd) Siren Rating Location ~USCS Ma (dBC) 24 Wintersberg Road Arlington 122 Buckeye Salome Road Arlington 122 26 Indian School. Road A r ling ton 122 27 Winters Wash Arlington 122 28 Two miles north of Belmont 122 Indian School Road Mountains 29 Tonopah Arlington 122 30 Delaney Wash Arlington 122 31 Joleena Farms Belmont 122 Mountains 32 Ward Road Arlington 122 33 Desert Farms Arling ton 122 34 14 miles south of Ward Road Arlington 122 35 Arlington Station Arlington 1.22 Luke Wash Arlington 122 A Iow pow'er battery operated siren is located North ef Indian School Road, on the Buckeye USGS Map. P~+QOgj)I ACOUSTIC TECHNOLOGY li IC.
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TABLE 2 ARIZONA PUBLIC SERVICE COMPANY PALO VERDE NUCLEAR GENERATING STATION ALTERNATIVE 1B Siren Rating Siren Number Location USGS Ma s (dBC) Luke Wash A r ling ton 122 Johnson Road Buckeye Arlington Station Arlington 122 4B Johnson Road at Buckeye 122 Southern Avenue 1$ Mile south of Ward Road Arlington 122 6B Lower River Road Buckeye 122 Desert Farms Arling ton 122 8B Narramore Road Buckeye 122 Ward Road Arlington 122 e 12B Hassayampa Hassayampa Arlington Road Wickenberg Rd. Cotton Gin Arlington Arlington A r ling ton 122 122 122 13 Desert Rose Road Arlington 122 14 Gila Compressor. Station ArI ing ton 15 Broadway Road Arlington 122 16 'ickenberg Hassaympa Road Arlington 122 17 Hassayampa Road Arlington 122 18 Buckeye Salome Road Arlington 122 Phillips Wash Arlington 122 20 Indian School Road Ar ling ton 122 21 Indian School Road Arlington 122 22 Hassayampa Road Arlington 122 23 Wintersberg Road Arlington 122 IQQQOogg ACOUEnC TECHNOLOGY INC.
ALTERNATIVE 1B (~ont'd) Siren Rating Siren Number Location ~USCS Ma (dBC) 24 Wintersberg Road Arlington 122 25 Buckeye Salome Road A r ling ton 122 26 Indian School Road Arlington 122 27 Winters Wash Arlington 122 28 Two miles north of Indian Belmont 122 School Road Mountains 29 B Delaney Wash Arlington 122 30B Tonopah Arlington 122
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TABLE 2 ARIZONA PUBLIC SERVICE COMPANY 0 ALTERNATIVE 2 PALO VERDE NUCLEAR CENERATINC STATION Siren Rating Siren Number Location ~USGS Ma (dBC) 51 Tonopah Ar ling ton 130 52 Indian School Road Arlington 130 53 Wintersberg Arlington 130 54 Wickenberg Hassayampa Road A r ling ton 130 55 Phillips Wash Arlington 130 Cila Compressor Station Arlington 130 57 A r ling ton A r ling ton 130 58 Palo Verde Buckeye 130 59 Brunner Road Buckeye 130 60 Palo Verde Road Buckeye 130
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TABLE 2 ARIZONA PUBLIC SERVICE COMPANY PALO VERDE NUCLEAR Gf NERATINC STATION ALTERNATIVE 2B Siren Rating Siren Number Location USGS Map (dBC) 51 Tonopah Arlington 122 52 Indian School Road Arlington 122 Wintersberg Road Arlington 122 54 Wickenberg Hassayampa Road Arlington 122 55 Phillips Wash A r ling ton 122 56 Gila Compressor Station Arlington 122 57 Arlington Arlington 122 58 Palo Verde Buckeye 122 59 Brunner Road Buckeye 122 60B Brunner Road Buckeye 122 61B Palo Verde Road Buckeye 122
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Vl 1. TONE ALERT RADIOS AS A NOTIFICATION SYSTEM Tone Alert Radios Because of the ability of a tone alert radio to turn on upon receiving an activation signal, they meet the requirements FEMA outlines for the main emergency notification system. The main advantage a tone alert radio has over a siren system is the ability to broadcast the emergency message iteself. Because of the low cost per unit, they may be desirable for use in low density areas within the EPZ. There appears to be two major disadvantages in using tone alert radios as the only notification system. The first disadvantage would be control of the system. There would be no guarantee that the radios would be properly maintained, or that they would even stay in the individual residences. The second disadvantage is that the people would have to be in their homes to hear the warning signal. Because of the climate, and because much of the industry within the EPZ relates to agriculture, the people liv'ing in the area spend much of their time outdoors. It is possible that the warning message would not be heard by many of the residents. Through investigating radio warning systems, two systems appear to be feasible for use as a warning system. The h1ational Oceanic and Atmospheric Administration (NOAA) and the Emergency Broadcast System (EBS). It is expected that one of these two systems will be used to provide instructions to the public regardless of the system used to notify them of an emergency. ln comparing the two systems, the EBS system appears the most desirable for a number of reasons. As mentioned previously, there is presently EBS coverage over the entire EPZ. There would be no need to construct additional transmission equipment, as there would if complete NOAA coverage was needed. The price of a receiver is comparable to the price of a NOAA receiver. Another advantage of the EBS system is the fact that it broadcasts on commercial radio stations. The receiver could be used to listen daily to the station which has been selected to broadcast the warning signal. A third advantage of the EBS system is that it is activated by a dual
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ton'e signal. The two tone signal allows for less accidental activation of the 1 system than the sinaie tone signal which NOAA vses. i~Q(cia ACOUSTIC TECHNOLOGY INC. P 3
VIII. ADDITIONALWARNING SYSTEMS Additional warning systems were considered as alternative notification systems. These will be discussed below.
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MOBILE ALERTING The use of vehicles equipped with mobile sirens and public address systems was considered as an alternative to notify the public of an emergency, especially in lower density areas. The advantage of such a system is that the driver of the vehicle can adjust the notification route as necessary and can provide individualized instructions to areas which might be faced with a specific problem not encountered in other arear'. The driver can also report observations and potential problems to the proper authorities so that they can make appropriate decisions. The disadvantages of such a system lie in the distances between the residences within the EPZ and the normal location of the vehicles outside of the EPZ and their response time. To ensure complete notification of the area, vehicles would have to be stationed in several locations throughout the EPZ. In addition, the condition of many of the roads within the EPZ is poor. It is likely that complete notification could not take place soon enough if heavy vehicles had to manuever through these roads. Adverse weather conditions, lack of sufficient personnel, and appropriate vehicles are additional factors which would affect complete notification in the allowable time. Because of the disadvantages listed above, mobile alerting is not recommended. TELEPHONE NOTIFICATION Using the telephone system for alerting the public has been considered. The notification procedure would be to automatically dial a computerized list of phone
.I numbers and transmit the emerqency message along with instructions. Any unanswered or busy phone numbers would be shifted automaticalfy to the bottom of the list to be dialed again. The expense of initiating and maintaining thisprogram, along with the fact that not all residences have phone lines make this alternative unfeasible.
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IX. COST ANALYSIS OF ALTERN'ATIVE WARNING SYSTEMS OVER THE PROJECTED LIFESPAN OF PALO VERDE NUCLEAR GENERATIN STATION The following Table 3 presents a cost analysis/comparison of the three alternative designs for PVNGS ~ The analysis is over the lifespan of the nuclear plant, which is ro'ected to be 43 ears from the start of operation of 'Unit 1'o the shutdown of 'Unit 3'.In preparing the cost analysis the following projections were made: v the cost of a 122 dB siren is projected to be $ 15,000 in two years time. This figure includes installation costs and the necessary radio control. The price of a 130 dB is approximately 12% higher, or $ 16, 800. Maintenance costs for the siren systems are assumed to be 2% of the initial cost of the system per year of operation. Testing costs for the system are assumed to be $ 100 per year per siren. Tone alert radios presently range in price from $ 28.00 to over () $ 100. 00. A radio with a projected cost of -$ 50.00 'would be adequate for a single family residence. The lifespan of the radios is five years, meaning the radios would need to be replaced eight times over the lifespan of Palo Verde. We have assumed a $ 25.00 increase in price of each radio over every replacement period. The average annual cost of electricity to operate each tone alert radio is projected to be: 10 watts x 8760 hr/yr = 88 kw /yr x $ .045/kwh = $ 4.00/ yr. Maintenance costs of the tone alert radios are assumed to be 2% of the purchase price of the radio system per year for the first five years, QQOO ACOUSTIC TECHNOLOGY !NC.
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(,3 0 then 25 per year of the replacement price of the system for each five year period thereafter. At the present time, there are several siren manufacturers producing and selling high power sirens. Each of these manufacturers produce more than one model of siren. Because of the great differences in each of these models and because a vendor has not yet been chosen, it is very difficult'o predict either the lifespan of the sirens, or to project the cost of rebuilding and over-hauling the siren. Because of the difficulty of projecting these costs, they have not been given a monetary figure in the cost analysis. For many of the same reasons, the costs of monitoring and controlling the systems involving tone alert radios have not been given a monetary figure, either. Instead, a contingency should be added to all of the alternatives which would cover these additional costs. O~ACOUSl'IC TECHNOLOGY INC. ALTERNATIVE 'I ALTERNATIVE 'IB ALTERNh<<VE 2 ALTERNATIVE 2B ALTERNATIVE 3 d I'I 122 dB SIRENS 1250 TONE ALERT r,p: 36 HIGH POWER SIRENS 30 HIGH POWER SIRENS 10 130 dg SIRENS COVERING htORE DENSELY RADIOS
'Ift OVERING AI.L POPULATED COVERING ALL POPULATED COVERING htORE DENSEL
! AREAS IN 10 hllLE EPZ POPULATED AREAS POPULATED AREAS AREAS IN EXTENDED EPZ 200 TONE ALERT RADIOS 160 TONE ALERT RADIOS INITIALCOSTS Purchase Price of Sirens Including Installation and $ 540,000 $ 450,000 $ 168,000 $ 165,000 Radio Control (price of sIren x number of sirens)
Purchase Price of Tone Alert $ 10,000 Radios $ 8,000 $ 83,000
$ 540,000 $ 450,000 $ 176,000 $ 175,000 $ 83,000 TOTAL INITIALCOSTS A- ~ COSTS
'DDITIONAL htaintenance of Siren System
(.02 x purchase price of $ 464,000 $ 387,000 $ 144,000 $ 142,000 system x number of years of operation) Testing of Siren System ($ 100.00 x number of sirens $ 155.000 $ 129,000 $ 43,000 $ 47,000 x number of years of operation g~ Replacing Tone Alert Radios A (summation of number of $ 195,000 $ 260.000 $ 1,625,000 "v .
-radios x price of radiq for each replacement period)
'~i%'+ Q> -6 Radio Operating Costs (60.00
'x number of radios x number $ 26.000 $ 34,000 $ 215,000 of years of operation) htalntenance of radios (.02 x purchase pilce of radios for each replacement period $ 19,000 $ 25,000 $ 156,000 x number of years of k operation TOTAL ADDITIONALCOSTS $ 619,000 $ 516,000 $ 427,000'508,000'1,996,000 TOTAL COST OF SYSTEM $ 1.159.000'986.000'803.000 $ 683,000'2,059,000':
A contingency for rebuilding and over-hauling the sirens should be added to these costs.
'j . b: A contingency for moniterlng and controlling the tone alert radio system should be added to t>>ose costs.
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~jYi ACOUSTIC TECIINOLOGY INC.
TABLE 3
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X. DESCRIPTION OF THE RECOMMENDED ALTERNATIVES As previously stated, ATI has prepared 3 Alternative proposals which wilt fulfill the requirements outlined by NUREG-0654. These alternatives will now be discussed in greater detail: Alternative 1: Virtually 100% of the populated areas surrounding Palo Verde Nuclear Ca@crating Station will be notified of an emergency by a system of high power sirens. Alternative 1 defines the plume exposure EPZ as the area within a 10 mile radius of the plant, plus a 14 mile extension to the east, to Palo Verde Road. Alternative 1B defines the EPZ boundary as the standard 10 mile radius surrounding I PVNGS. These systems provide the quickest, most reliable means of notifying the public within the EPZ. For areas inside the five mile radius, nine sirens have been positioned to cover the populated areas to the north of PVNGS and the less densely populated farmlands to the south. 100% of the population will receive acoustic coverage of a minimum sound level of 60 dBC. For areas beyond the 5-mile radius, twenty-seven high power sirens
're positioned to the north, east and southeast of PVNGS to cover the remaining population with a minimum sound level of 60 dBC. One area to the northeast which is outside the 10 mile radius, but within the extension to the EPZ is not covered by a high power siren because power lines are unavailable. A battery operated, low power siren is suggested for use in this area.
For Alternative IB, it is recommended that 21 sirens cover the populated areas between the five and ten mile radius. Again, virtually 100% of the population would be covered by sound level of a minimum of 60 dBC. The siren systems of Alternative 1 are designed for sirens capable of producing a sound level of 122 dBC 100 feet away from the siren. Most sirens rated at 125 dBC by their manufacturers are capable of producing this sound level. r aa'28-1 w QQ@o ACOugrtC TECHNOLOGY INC.
l 1 i
A disadvantage of a siren system is that the momentary starting current required to activate the system is high. It is recommended that the electrical power distribution throughout
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PVNGS be analyzed to determine whether the existing lines are capable of operating .the sirens. ~ If not, an alternative power system can be utilized. The specifics on when and who activates the siren system will be determined by the appropriate state and locals government officials. The sirens could be activated by a radio that could activate all of the sirens, or sirens in any given sector. The responsibility of activating the sirens would likely belong to Maricopa County. Alternative 2 Alternative 2 considers placing high power sirens in areas of relatively high population density, and notifying the remaining population of an emergency by the use of tone alert radios. Alternative 2 Is'esigned for sirens capable of producing a sound level of 130 dB at 100 feet. Alternative 2B is designed for sirens which produce a sound level of 122 dB. In both Alternative 2 and 2B, the area defined as the EPZ is the same as that of Alternative 1. These alternatives provide the most cost effective means of providing a warning system for PVNCS over the lifespan of the plant. For areas inside the 5 mile radius surrounding PVNGS;-two high power sirens have been located to the north. In Alternative 2, 31 residences/mobile homes/trave( trailers do not receive 60 dBC coverage. For Alternative 2B, an additional 14 residences do not receive coverage. It is recommended that tone alert radios employing EBS or NOAA broadcasts be used to notify these residences of an emergency. For areas outside the five mile radius Alternative 2 recommends the placement of eight sirens to the north and east of PVNGS. These sirens will provide a minimum of 60 dBC acoustic coverage to 88% of the population within the EPZ. It is recommended that tone alert radios be used to achieve complete notification of the remaining population. In Alternative 2B it is recommended that nine sirens be located to the north ancl east of PVNGS.
@)i ACOLlSrlC TECHNOLOGY ~NC.
The sirens would cover 83o of the population within the EPZ., Tone Alert Radios are
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again the recommended method of notifying the population not covered by
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a minimum sound level of 60 dBC. The activation of the siren system is the same as is outlined for Alternative l. All tone alert radios would be activated at the same time by the EBS or NOAA system. lt is expected that the radios would be activated at the request of the Civil Defense Department of Maricopa County, or by other appropriate state and local officials. ALTERNATIVE 3 Alternative 3 recommends using tone alert radios throughout the EPZ as the primary warning system. The EBS or NOAA system is the recommened radio warning system. Alternative 3 has the lowest implementation cost of the alternatives. A tone alert radio would be distributed to each residence/mobile home. At the present time, this figure would not exceed 1250 radios. Included in the 1250 figure is a 125 unit development which is to be constructed in the northeast corner of the plume exposure EPZ. The tone alert radios would be activated in a manner similar to that described in Alternative 2. The specifics of maintaining the system will be determined by the appropriate state and local officials.
- 0 O ACOUSre TECHNOLOGY ~NC.
APPENDIX 1 TASK 1 and 2 SITE EVALUATION AND AivlBIENT NOISE SURVEY Q~<Q ACOUSTIC TECHNOLOGY INC.
t INTRODUCTION Task 1 and 2 of the work was to perform an ambient sound survey, site evaluation, and preliminary assessment of the site conditions affecting the design of a prompt notification system of Palo Verde Nuclear Generating Station (PVNGS). Our evaluation indicated that more than one method of notification may be required for total coverage of the area. One of the methods will likely be a siren system in populated areas of the site. It is likely that one or more of the following systems: Emergency Boradcast System (EBS), National Oceanic and Atmospheric Agency (NOAA) weather radio, and mobile sirens will be used in conjunction with the siren system to provide notification throughout the 10-mile EPZ. NUREG-0654 (Appendix 3) indicates that the determination of adequate siren sound levels can be achieved by either of two options. Field surveys can be conducted to determine typical daytime ambient sound levels, and the siren system can be designed to achieve 10 dB above this documented ambient. As an alternative to field surveys, in areas with population density below 2,000 persons/square mile a sound level of 50 dBA can be assumed and the siren system can be designed to produce a minimum of 60 dBC. Since the population in the EPZ of PVNGS is far below 2,000 persons/square mile, an ambient sound level of 50 dBA can be assumed to generate the minimum 60 dBC sound coverage for the PVNGS Siren System Design. However, Arizona Public Service Company (APS) has chosen to conduct a sound survey to determine the actual ambient sound levels rather than assuming 50 dBC. The sound survey results wilt be used to adequately design PVNGS siren sound coverage. Furthermore, NUREG-0654, (Appendix 3) indicates that an acoustic signal of
- '0 dB above the average daytime ambient level is an acceptable criterion for the design of a siren system. In addition, this 10 dB differential above average daytime
+(QQggo~~i ACOUSYIC TECHNOLOGY tNC.
(' t ambient level is meant to provide a distinguishable signal inside a home of average residential construction under average daytime conditions. ()
~QOo AcoUsTlc TEGHNCLCGY IHO.
AMBIENT SOUND SURVEY Ambient noise levels were monitored at Palo Verde Nuclear Generating Station (PVNGS) from May 6 to A)ay 8, 1981. The purpose of these measurements was to establish typical ambient noise levels within the 10 mile plume exposure Emerergency Planning Zone (EPZ). In addition to the sound surveys, data was collected pertaining to land use, land coverage, available power lines, demography and topography of EPZ. Fifty-two positions were chosen for sound level measurements within the EPZ. These points were chosen to characterize the acoustic environments throughout the I EPZ. Particular attention was placed on areas with some population density and on areas with commercial land use. The measuring locations are shown in figure 1, and described in Table 1. Table 1 describes actual circumstances of the test such as major noise sources at the time of the measurements. In addition, most of these measuring locations were visited at different times, and no noticeable changes were noted. (3 Sound level measurements were made on a Bruel and Kjaer 2215 sound level meter. Periodic calibrations were made to ensure. accuracy in the measurements. While the measurements were being made, all background noises affecting the reading were noted and documented in Table l. Wind speed, wind direction, temperature, relative humidity and sky conditions were also recorded and listed in Table 2. At each position, C-weighted, A-weighted, and 250, 500, 1K, 2K Hz octave band measurements were recorded. The data collected from these measurements is shown on Table l. In some instances, the C-weighted reading suggested that lower frequency measurements should be made. The 31.5 Hz, 63 Hz and 125 Hz octave band readings are noted in Table 1 under the description column. The area within the EPZ is primarily rural or unihabited. The land is either u nused and taken over by brush, rocky, or is used as farmland. The main crop appears to be cotton. The Hassayampa Cotton Gin to the south of Palo Verde and a cotton gin under construction at the intersection of Wil Avenue and Base Line Road
.(QQQQo~~i ACOUSTIC TECHNOLOGY INC.
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/ t are two of the few industries within the zone. There are three schools within the area;one in Arlington, one in Palo Verde, and another Northwest of 1Vintersburg on Indian School Road. The schools correspond to relatively higher population densities, meaning 50-200 people per square mile. There are also increases in population around Wintersberg and in Tonopah, due mainly to the construction of the Palo Verde Nuclear Generating Station. Most of the higher population densities occur outside the 5-mile radius around the plant.
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( I~QiQoj~ ACOUSTIC TECHNOLOGY INC.
4 CONCLUSIONS The dBC noise levels of the majority of the measuring locations within the EPZ is less than 50 dBC. In the remaining locations, the 50 dBC noise level was exceeded due to transient noise sources. The primary transient noise sources are distant traffic, aircraft flyover, irrigation pumps, tractors, and engine noise. Since the design should be based on the steady state or average noise levels, it is reasonable to assume by disregarding transient noise sources, a level of 50 dBC for the entire EPZ. Since sound levels are higher near the siren (122 dBC) and decrease by moving away from the siren, we will attempt to place the siren close to potentially noisy areas in our design. All commercially available sirens produce tones in 500 and 1000 Hz octave bands and the majority of the acoustic energy of the siren is concentrated in these bands. Since the measured levels are 24 to 50 dB for the 500 Hz band, 17 to 44 dB for the 1000 Hz bands , t h esi 'r e~tone s will be substantially higher than 10 dB for the 500 and 1000 octave bands. These observations support design criteria of 60 dBC sound coverage for the entire populated area of the EPZ. I
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AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Frequency (Hz) Date/ Time Position/ Location Description C-wt A-wt 250 500 2K Background Noise 5/7/81 7) Intersection of A cotton gin is under construc- 52 55 43 40 Distant Traffic Baseline Road 6 tion on the hortheast corner of Tractors in Const-Wilson Avenue the intersection. There are ruction area. 9 ~ 50 am fields to the west'f Wilson Ave. 5/7/81 8) Intersection of There is a single family resi- 58 50 54 50 37 2 Tractors Southern Avenue dence on the southwest corner (500'way) and Wilson Ave. with a lawn and trees in front. Distant Traffic 10:05 a Fields are behind the house and Birds on all the other corners. Water fliowing 5/7/81 9) End of Wilson Roosevelt Canal is to the north 60 50 52 46 38 32 Water flowing Avenue of Wilson Avenue. It runs in canal 10:20 a east west and is fronted by a Birds private road. There are fields 2 airplanes in north of the Canal and to.the distance south. 5/7/81 10) Southern Ave Five mobile homes and three 51 45 41 37 34 Birds 100 feet west of aluminum barns are to the north Distant Traffic Palo Verde Rd of Southern Avenue. The People's Voices 0:30 a mobile homes are, permanent Hammering residences. They are surrounde by bushes and trees. There are fi Ids to the south.
/7/81 11) Intersection Fields are on all sides of roads. 52 43 42 39 33 Irrigation Pump f Brunner Rd. A working irrigation pump is to Water Flowing nd Southern Ave the southeast. Distant Traffic 0;50 a Birds Table 1b- ACOUSTlC TECHNOLOGY INC.
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0 AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Frequency (Hz) pate/. 2K, Background Time Position/Location Description C-wt A-wt 250 500 1K Noise 5/ 7/81 12) End of Roosevelt Canal is to north of 46 40 40 37 35 33 -Distant. Traffic Brunner Road Road. There are fields to -Water in canal 11:05 a north and south of the Canal. lapping against dike. 5/7/81 13) Palo Verde Luke Auxiliary Field is to the 62 51 45 30 27 -Distant trucks Road. South (there are five aluminum -Distant Aircraft 11:20 a bldgs here, commercial use}. Tne -Tractor 1500'way ground is hard, covered with -9 ane 500'way some brush. -Distant Traffic 5/7/ 81 14) intersection o There are six permanent homes 59 55 51 40 41 -Irrigation pump Southern Avenue to the northwest, and one on -Water "fiowing Johnson Rd. the southeast corner. There ar -Birds ll;35.a fields to the south of Southern -Distant Traffic Avenue, to the rorth, the ground is hard w/ some brush. 5/7/81 15) Johnson Road Three miles north of Southern 42 32 35 28 21 18 -Distant traffic from 11:40 a avenue. There are abandoned ~ lnterstate 10 buildings to the east of Johnson Rd, with one new home being constructed to the mouth. The land is fairly hard and covered. with brush. 5/7/ 81 16) intersection of The land is uninhabited and 51 41 45 30 20 -Distant traffic Johnson Road unused. Hard earth covered Distant aircraft and Airline with brush. -Insect noise Indian School) Rd 11:50 ai
- Table 1c ((QJQOog)
ACOUEfiC TECHNOLOGY INC.
0- 0-AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Date/. Frequency (Hz) Time Position/ Location Description C-wt A-wt 250 500 1K 2K, Background Noise 5/7/81 17) Intersection There are 3 permanent homes to 53 40 32 21 17 ~Distant aircraft of Palo Verde Rd the north of P.irline Road., and -Distant. traffic and Airline Rd. 2 to the south. The ground is -Birds 12:00 again fairly hard and covered noon with brush 5/ 7/81 intersection o There is a single family resi- 48 35 41 35 25 15 -Distant traffic
'8)
Wickenberg Rd. dence to the w'est, and uninhab-Airline Rd. 'nd ited to the east. The land is 12:15. p hard to east and wast with some brush for coverage. 5/7/ 81 19) Airline Drive, There are several mobile and 50 40 37 35 25 -Birds 1/3 mile west of permanent homes to the south- -Distant traffic Wickenberg iRd. east, and a single mobile home -Insect noises 12:30 p to the northwest. The land is unused, flat and dry with some brush covering the surface 5/7/81 20) I ntersection o Ruth Fisher School is 1000 ft West f48 37-40 22 26 20 18 -Distant traffic Airline Drive arid this intersection on Airline -Children's Voices Wintersberg Rd. Road. Trees have been planted -Birds 1:30 pm on the corners of the intersectio Except for the trees, the land to the north and to the .east is still hard earth. The earth is softer towards the school. 5/7/ 81 21) Wintersberg There are six mobile homes and 45 34 41 28 17 -Distant aircraft Rd. 1/2 South one permanent residence to the -Distant traffic of airstrip east. The land west of Winters- -Birds
- 45 jm berg Rd. is uninhabited. Hard ground and brush covering the surface. Table 1d PCOUEYIC TECHNOLOGY INC.
(3 AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Date/. Freqvency (Hz) Time Position/ Location Description C-wt A-wt 250 500 1K 2K, Backgrovnd Noise 5/7/ 81 22) Wintersberg The Red Quail General Store/ 55 47 50 50 44 43
-Distant traffic Rd. 200'outh Gas Station, a bar and a trailer -Birds of Salome Highwa park are grouped together to -People Talking the vest of Wintersberg Road. -Car Idleing 1:55 p The ground is paved. The stor relatively busy, with at least tw or three shoppers at any time.
Both Wintersberg Rd. and Salom Hwy have some traffic on them. The land to the east of Winters-berg is uninhabited, hard, dry, covered with brush. 5/7/81 23) Intersection o The land is uninhabited for more 47 33 31 25 23 -Distant traffic Wintersberg and than a mile from this point -1 Bird Ward (Ellis) Road The ground is fairly hard with 2.05 p some brush covering the surface 5/ 7/81 24) Ward Road 1/ The ground is unused, covered 50 40 40 30 28 -Distant traffic mite past Desert with brush. It is fairly soft, -Wind blowing brush 2'20 p Fbrms dusty earth. 5/7/81 25) 1 mile south 3 long buildings and two other 45 30 31 26 21 17 -Distant traffic of Ward Rd. buildings to south of road. -Distant aircraft 2:30 p There was no sign of people, but there were two operable tractors by buildings so the area is probably used. The ground is dry, dusty and covered with brush.
- Table 1e- OO)g ACOOEYic TECHNOLOGY INC.
AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Date/ Frequency (Hz) Tlllle Position/ Location Description C-wt A-wt 250 500 1K 2K , Background Noise 5/7/81 26) Southern There are some inhabited build- 35 27 35 33 27 -Distant traffic Pacific Railroad ings to the southeast. On the -Birds (Labor Camp) west side of these buildings -Dogs panting there is a row of abandoned -Insects buildings with an inhabited mobile home at the very end . The railroad runs to the north 6'bove grade. There are fields behind the houses, with horses grazing in the fields 2:40 pm 5/7/81 27) Hassayampa The cotton gin is on the west 32 30 27 23 18 -Sprinkler otton Gin side of the road. It wasn't in -People's Voices operation but it did not look -Wind blowing abandoned. The ground to the trees west is fairly hard earth. -Birds There are two permanent resi- -Distant traffic dences to the east. They are surrounded by trees and by their lawn. 2 50 pm 5/7/81 28) 1/2 mile north Lightly residential. There are 44 34 38 27 -Birds f Arlington St. 3 mobile homes to north and
-Children', voices permanent residences to. south. -Distant traffic 3:00 pm There are lawns and fields around the houses while the ground stays fairly hard to the north. Cows are grazing in the fields Table 1f (QQQ@)j)
P,COUEYIC TECHNOLOGY INC.
0 AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Date/. Frequency (Hz) Tlllle Position/ Location Description C-wt A-wt 250 500 1K 2K, Background Noise 5/7/81 29) Hwy 80 be- The land is uninhabited. The 48 32 45 33 25 17 Distant traffic tween Hassayampa surface is rocky with some -Insect noise and Arlington brush as coverage -Distant planes Wind blowing brus 3:15 p 5/7/81 30) Highway 80 'here is a storage bin/elevator 60 49 50 42 2-43 41 -Engine noises from to east of road. The ground is conveyor belt 3:30 p fairly hard earth. The land is -Birds softer to the west. Cows were -Distant traffic grazing on this land. There -Distant trucks are three silos to the northwest 5/7/ 81 31) Desert Rose The house to the southwest is 47 37 35 33 33 28 -Distant traffic Rd. surrounded by trees. There ar -Birds 3:45 p fields in every other direction. -Insects 5/7/81 32) Desert Rose Arlington School is to'the east 48 43 43 43 41 36 -Distant traffic Rd. of Desert Rose Road. It is -Distant tractors surrounded by its lawn and -Children's voices 3:55 p trees. There are permanent -Birds homes to the west and to the -Wind blowing southwest. These are again through trees surrounded by their lawn. I 5/7/81 33) Intersection o There are fields in all directions 45 38 37 35 33 30 -Distant 'traffic Johnson Rd. 6 Farm'uildings are 3/4 of a mile -Birds 4:10 pm wer River Rd. away to the west. - Insects
-Tractor (1000 ft)
- Table 1g- (QQQ<ogg~
ACOUSTlC TECHNOLOGY 1NC.
AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Date/. Frequency (Hz) Time Position/ Location Description C-wt A-wt 250 500 1K 2K , Background Noise 5/7/81 34) I ntersect ion The land is unihabited here. 46 35 33 27 20 17 -insect 4:20 of Hassayampa 8 A landfill is to the northeast. -Distant aircraft Widenberg Rd. Ground is fairly hard with some -Distant traffic brush covering the surface. 5/7/81 35) Hassayampa- Permanent residences on both *47 30 35 27 20 19 -Birds Wickinberg Rd. sides of road. Land is unused. -Distant traffic 4:35 pm Ground is fairly hard, covered with brush.
*125 Hz freq. 47 dB 5/ 8/81 36) Intersection No residences can be seen at '51 35 43 29 18 17 -Distant traffic of Wickenberg 6 this point but there are six -Distant plane 7:45 am Van Buren Rds. mailboxes to the east of Wicken- -Birds berg Road. The ground is fairly hard, with some brush for coverage.
*125 Hz 50 dB 63 Hz 48 dB 31.5 Hz 47 dB 5/8/81 37) Van Buren Rd There are permanent residences 'A 49 37 32 28 22 15 -Birds 1 mile east of to the Southwest. The land is -Distant aircraft 8:00 am Wickenberg Rd. unused, soft. Some brush on -Distant traffic the surface.
*125 Hz 40 dB 63 Hz 45 dB 31.5 Hz 46 dB
.Table 1h Oo) ACOUSTIC TECHNOLOGY INC.
t 1 1
AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Date/. Frequency (Hz) Time Position/ Location Description C-wt A-wt 250 500 1K 2K , Background Noise 5/8/81 38) Van Buren There is a house to the south "51 38 30 24 20 17 -Distant traffic Rd. 1 $ mile of Van Buren Rd. surrounded -Distant aircraft 8:20 a west of Wicken- by trees. There is a windmill -Birds berg Rd. in the backyard. The land to Noise from windmill the north is unused and fairly hard earth.
*125 Hz 37 dB 63 Hz 45 dB 31.5 Hz 47 dB 5/8/81 39) Van Buren The land is uninhabited. Hard 48 33 43 28 17 15 Distant t raffle Rd. 14 miles east ground covered with brush -Distant aircraft 8:30 am of Wintersberg -Birds Rd.
5/8/81 40) Van Buren There are grain bins off to the *49 35 36 25 23 20 "Distant aircraft Rd. 3 mites west northeast. Fields are on both for C-weighted 9:10 am of Wintersberg Rd sides of the road. reading
-Tractor operating 1800'way
-Birds
-Distant traffic 5/8/81 41) 1$ miles south Fields are to the east of the roa .61 44 45 36 25 23 -Birds 9.20 am of Tonopah There are mobile homes and two -Distant traffic permanent homes to the, west. -Distant Aircraft The land is unused around the buildings but is still soft.
- Table 1i- (QOQ)
ACOUEOC TECHNOLOGY INC.
AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Date/. Frequency (Hz) Time Position/ Location Description C-wt A-wt 250 500 1K 2K, Background Noise 5/8/81 42) Palo Verde There are 180 spaces in the "54 Trailer Park 35 37 33 25 19 Distant traffic trailer park, and an estimated -Birds 9:35 a three people/trailer. To the -Voices east of the park there is a -Distant tractor 500 unit motel. The peak period of occupancy is September through April, however they operate at 90% year round. The complex covers seven acres. The ground is paved.
*125 Hz 47 dB 63 Hz 52 dB 31.5 Hz 50 dB 5/8/81 43) Airline (India The ground is hard earth with 43 30 38 31 23 15 -Distant traffic School) Rd. 14 some brush. The land is a -Distant plane 10:30 miles west of cattle range. -Birds am Tonopah 5/8/81 44)3oleena Farms There are approximately twenty 48 41 39 35 25 25 -Voices mobile homes at 3oleena Farms -Birds 10:45 a grouped together along a service -Television road. There are fields to the -Distant traffic south of the homes; brush to the north. 1 Table 1j- ACOUSTIC TECHNOLOGY INC.
AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION Pate/. Frequency (Hz) Time Position/Location Description C-wt A-wt 250 500 1K 2K , Background Noise 5/8/81 4S) Airline Rd. Interstate 10 cuts across the EPZ 53 41 45 40 35 20 -Distant traffic 2 miles west of 1500'o the south. There are from Interstate 10 11:20 Wintersburg Rd. fields from this point south to -Birds am the highway and brush to the north. 5/ 8/81 46) 1$ e,ast of th There are five mobile homes to t e 44 31 31 25 21 17 -Distant traffic intersection of south. The land around the -Distant plane 11: 30 Salome Hwy and homes is unused, but is -Birds am Wintersburg Rd. fairly soft. There is harder ground and brush to the north. 5/8/81 47) 1 mile west There is one mobile home to 51 39 37 33 17 15 -Distant a ircraft of Hassayampa the north of the road, and -Distant traffic 11: 45 Road several permanent mobile homes -Birds am 3/4 miles to the south. There -Wind blowing is brush covering fairly soft leaves ground both to the north and to the south. 5/ 8/81 48) 2 miles north Five mobile homes are to the 49 32 30 22 20 -Distant traffic 12'00 of Salome I-Iwy south of the street. The land -Distant plane around the homes is soft, with -Birds noon fields behind the homes, the land to the north is unused; hai earth covered with brush. 5/8/81 49) Buckeye- There is a permanent residence 48 35 37 35 25 17 -Distant traffic 12:40 Salome Highway 500'way to the northwest. Wind blowing leave Trees surround this house. pm Otherwise the .land is unused, fairly hard ground with some brush covering surface ACOUSTIC TECHNOLOGY 1NC. Table 1 QQGi>
AMBIENT SOUND LEVEL SURVEY RESULTS PALO VERDE NUCLEAR GENERATING STATION pate/. Frequency (Hz) Time Position/Location Description C-wt A-wt 250 500 1K 2K , Background Noise 5/8/81 50) Salome Hwy The land, is flat and unihabited. 48 35-37 40 35 25 18 -Distant traffic Fairly soft ground with some -Distant trucks 12:50 brush. pm 5/8/81 51) Ward Rd. There are two permanent homes 47 33 35 29 22 17 -Distant train to the north of Nard Rd. and -Metal Windchimes 1:05 three to the south. The land -IYind blowing pm is unused, fairly hard with some leaves brush for coverage. -Distant radio
-Distant traffic 5/8/81 52) 1 mile north This point is inside the property 58-60 42 40 37 30 19 4 trucks operating 2:30 of Ward Rd. lines of Palo Verde Station. Th 1200 ft away pm ground is completely'bare, hard earth.
*125 Hz 59 dB 63 Hz 53 dB
- 31. 5 Hz 55 dB Table 1I kQ(QDO+~))
ACOOSTIC TECHNOLOGY INC.
TABLE 2 METEOROLOGICAL CONDITIONS PALO VERDE NUCLEAR GENERATING STATION Wednesday, May 6, 1981 Temperature high 92oF low 65oF Relative Humidity Wind from the east, 9 mph sky clear Thursday, May 7, 1981 high 90oF low, 60oF Relative Humidity 28% Wind from the east, 6 mph sky clear Friday, May 8, 1981 - Temperature high 94 F low 66CF Relative Humidity 310 Wind from the east, 3 mph clear QQQo)+ ACOUSTlC TECHNOLOGY INC.
APPENDIX 2 COMPUTER PRINT-OUTS OF SOUND PRESSURE LEVELS Siren Height SO feet Temperature 70'F Relative Humidity 36%
CONTENTS ALTERNATIVE 1 and 1B: Complete Siren Coverage Sirens 1-36 of populated areas ALTERNATIVE 2: Siren Coverage of High-Density Sirens 51-60 Areas Using a 130 dB siren rating ALTERNATIVE 2B: Siren coverage of High-Density Sirens 51B-61B Areas Using a 122 dB siren rating QQQQ(opg)))~ ACOUSTIC TECHNOLOGY INC.
ALTERNATIVE 1 AND ALTERNATIVE 1B SOUND PRESSURE LEVELS COMPUTER PRINT-OUT QQQ(/pal ACOUSTIC TECHNOLOGY INC.
SOUND PRESSURE LEVELS dB) ARIZONA'UBLIC SERVICE COMPANY Palo Verde Nvclear Generating Sfafion SIREN 0 AZ1 SOUND PRESSURE LEVELS RADIUS 3 ETC 0 100. 98 i 7~ << 71 ~ GO. 55. 49 15 ~ '. QO. 87. 78. 71 ~ 60. 55. 51. 30 1QQ. 87 ~ 78. 70. 65. Sic 57. 53. A5 1 c)Q ~ nj ~ Bing 78 ~ 71<< QB ~ 54 60 ( <<0 ~ 97. 78. 7 L ~ L) n
~ 6
'4 75 JQ << Bm 78 70. Qd ~ l ~ 57 <<
'3.
90 'O ~ 87. 8. 7Q. 0\+ << GO. 56. 52, 1OO. 97. 71. 85. nQ ~ <<g5 5'1 . I 105 12O 1 QQ ~ 98 ~ 79 72 65 ~ 30. w>Q ~ 49. I 100. 8$ .
'Q.
73 67. Gi. 50 51.
'4 135 ~
150 1OQ. 88. BO.
'4 88 ~ 62 ~ 58. 53 165 1OVe 89. BO.
'4
- 88. G3. 58. '4.
180 100. BO. '4.
- 89. 84. 59. 55.
195 1QQ. 90. 82 ~ 75. 70. 84. 80. 55. o 210 100. 90. 82. 75. 70. 65<< GQ. 56.
- u. 225 100. SQ. 82. 75 7'J ~ S5, 58 ~
240 .'Q. BO. 92 '5.
- 85. L> a ~ 56.
8'.
~
255 100 C'Q 82. 75, 7(< ~ <<35 ~ 57<< Ul 270 1QQ. BO. 75. 70 Sg << ~ 58. 285 1OO. BQ. 82. 75. '0
<< 65. 80. 56.
300 ;QQ. BO. 8:.. 75. Gg 80. 55. 315 100. 89. '81. 74 ~ GB ~ 84. 59, 330 100. 89. 80. 74. 88. 62. 58. 54. 345 100. 88. 80. 73 87 ~ 61. 58. 51. 1000 2000 3000 4000 5000 6000 7lXO 8000 Distance From Siren [feet j Computer Analys>s by:
, Qo ACOUSTIC TECHNOLOGY tNC.
<<<<'. +,<<,y <<<<gg <<, <<,.<<<<' <<<<<<'
SOUND PRESSURE LEVELS dB) ARIZONA'UBLlC SEFMCE COMPANY Palo Verde Nuclear Generafing Stafion S IREN ¹ AZ. LEVELS SOUND PRESSURE RADIUS 3 ETC 0 100. 89. Si. 74 ~ ~ 63. 58 53. 15 100. 89. 73. $ 7. 56 52 30 100. SB ~ 80. 73 67r 5$ '0. 45 100 89. 80 ~
'2
~ $ 7. $ 0. 54 50.
60
'00.
89 ~ 80. 72 ~ D7 ~ 60. 54 50. 75 100. SB. 80. 72 ~ GG. $ 0. 54 50. 90 100. 89. SO ~ 74 ~ 87 80. 50. 105 100. 89. 80. 72 67. $0 ~ P 50. o 120 100. BS. 80. '3
- 67. $ 1. 58 51.
100. 89 Bing 81. 74. 87. $ 1. 5G 5a ~
'B
~
a) 135 150 100. 89. 81. 74. D~ ~ 83. 5G 52 ~ 165 100. SB. 81. 74. $ 8. $3 ~ 58 53.
- 75. $ 3. 58 53.
180 195
,100.
;100.
90. Bi. Si 82.
~
75. GB.
. bJ D CI ~
'4. SB 55.
55. 210 '100. Bi. 82. 75. 8 >iO ~ $ 0. 3>> ~ 90 100. BB ~ Bo ~ 72 ~ 88. 8[ I 55. 50. g 105 :. Oo. BB. Bo. 72 ~ 88. $ 0. 55 50. o 12O 100. BB. 80. 73. BG. Gi . '8. 51. aT 135 100. BB. 91 5 73. 87 ~ $ 1. 52 ~ 150 100. 09 Bi. 74. 87 ~ >>i>> ~ 58m '3>>'7 ~ 165 100. clo Bi. 74. GB. 63 ~ 58. 53. 180 .100. Bl . Bl. 74. 68. 83. 59. 55. 1'25 100. Bl. Bi. 75. SB. 83 ~ 59. 5G ~ 210 100. 9:. Bi. 75. SS. . 64. 59. 5G. u 225 100. 91. 8.. 75. $9 ~ G5. 80. 58 240 .00. Sl . 82 75. 70. 85. $ 0. '6. 255 100. B.' '3.
- 78. 70. 85 ~ 81 e 57.
- 0) 270 :oo. 83. 76 ~ 70 85 1 o7o 285 100 J>> ~ 83. 78. '0.
CD ~ 5 58 300 '100. 91 ~ 83. 7G. 70. 65. 80. '8 315 100. Bi . 82 7G. 70. O>>i a Go. '8. 330 100. Bi. '2.
- 75. 89." 85. Go. 55.
345 100. Bo. 82. 75. G9. 84. 59. 55. 1000 2000 3000 4000 5000 6000 7000 8000 Distance From Siren (feet) Computer Analysis by: ACOUSYic TECHNOLOGY INC. Q
SOUNO PRESSURE LEVELS as) ARIZONA PUBLIC SERVICE COMPANY Palo Verde Nuclear Generating Station S1REN 48 0 100. Bo. 81. 74. 68. 83. 58. 54. 15 100. So ~ 81. 74 BS. 62. 58 ~ 53. 30 100. 60. 80. '4. 87 ~ I CS>> ~ v7 ~ 5". 45 100. co 80. 74. 87. 62. 57. 5'0. tM 100. Bo. 80. 73. 87 ~ Ol
~ 6
~ 'D 9 ~
75 100. SB. Bo. 73. GG. Go. 55 90 100. SS. 80. 72 GG. Go, '5. th YCs ~ g 105 100. Bo. 80. '3 BG. Bo. 5'5. 46. 120 100. 6 I 80 ~
'3
~ 86. C h
~ ~ 4>>.
135 100. SB. 80. 73. GG. >>J ~ 55 50. 150 100. SB. 80. 73. 87. P% CI ~ t7
~
'0 5 ~
165 100. 88. 8O. 74. 87. 62. '7. 54. 180 joo. SB ~ 80. 74. 88. 83 ~ 58 ' 55 195 100 So. 80. 74 LO>> ~ 84. >>I
't
~
210
'00.
BO. Bj. '4 sod ~ 64. 80. 58.
- u. 225 100. Bo. '5.
GB 84. GO. SG. 240 100. Bj. 8'2. 75. 70. os BO. m, 54 I 255 100. So ~ 7i> ~ 70. 84. >>V ~
'70 100. BO. 82. 75. GB ~ 84. 5>>rCI 55.
285 100. BO ~ 82. 75. oB ~ 64. 55 m 100. Bo. 82. 75. 70. 84. BO. 58. 315 100. BO. 82. 75. 0>>C ~ 84. 56. 55. 330 100. Bo. 82. 75 BS ~ 84. 55. 345 100. So. 82. '5.
~ GQ 1000 2000 3000 4XO 5000 6000 7000 800O Distance From Siren tfeetl
, Computer Analysis by:
(i'~ ACOUSTIC TECHNOLOGY iNC. I
SOUND PRESSURE LEVELS dB) . ARIZONA PUBLIC SERVICE COMPANY Palo Verde Nuclear Generating Station SIREN 0 AZ5 SOUND PRESSURE LEVELS RADIUS 3 ETC 0 100. 90. 81. 74. c3 58. 54 15 00 90. 80. 74. BS. $2 57. '2. 30 '00.
- 89. 8'0. 73. $7 ~ 55. 50.
45 100. SS. 73. BS. SO ~ 55 49. 100 $ 9. SO. 7 t? GS. BO. ' 50.
'4 60 75 '00.
<<S. 80. 7 ~ SB. $ 0. g'0 50.
g a) 90 105 120 135 100. 100, 100. 1 Oio ~ 89. 89. QB SB.'S. 80. 80. 80. 80. 72 73. 73. 73.
'8. $$ .
SS. SB.
$ 7.
60.
$ 0,
$ 1.
$1 ~
54. 55. 55. 5$ . 50. 49. 50. 50. 150 100. ~ 80. 74. $7 Q4 ~
'7.
52 165 100 BO. 81. 74. '8
~ 58 '3, 180 '00..
BO. 81. 74. $ 8. $ 3. '8. 54. 195 100. 90. 82 ~ 75. BB. 84 59. 54 100. Clo 82. 75. 70. 59
'r 210 ~ B4 ~
'5.
225 100. 8'? ~ 75. 70. G5. 'O. 55. 240 100. 90. 82. 75. 70. $ 5. Bo ~ 5$ .
- 82. 76. 70. $ 5. $ 0.
t 255 100. l1 t? 0 ~ Ul 270 1GO. BO. 82. 76. 70. $5 ~ $ 0. 5$ . 285 100. SO. 8'? ~ 75. 70. $5 ~ $ 0. SB. 300 100. BO. 8 e 75. 70. $ 5. $ 0. 5$ . 315 100. Bo. 82. 75. 70. 65. BO. 5$ . 330 .'00. 90. 8'? 75. 70. 64 ~ 59. 55. 345 " 100. cl0 81. 74 BS ~ $ 4. 59. 54. 1000 2000 3000 4XS 5000 6000 7000 8000 Distance From Siren (feet)
, Computer Analys>s by:
((QQQog ACOUSl1C TECHNOLOGY INC. l t O'Lttll 4 t ' t It
SOUND PRESSURE LEVELS dB) ARIZONA'PUBLIC SERVICE COMPANY Palo Yerde Nuclear Generating Station 8 IREN 0 AZS BOUND PRESSURE LEVELS RADIUS 3 ETC 0 00 BS. SO. 73. 88. 58 53. 15 }00. BB ~ 80. 73 87. UQ ~ ~
'7.
5v ~ 30 1 ("i(~y, BB ~ BO.
'3
- 87. 81 ~ 58 5}.
A5 !vo. SB. 80. '3.
- 87. Qi ~
'5.
60 }VO. SS, 80. 73. QB. 80. JI 75 BBU 18. /1. 8=) OP. 55 ~ 48>> 90 )00. 83 ' 78 ~ 71. 85 ~ 55. 50. 1O5 '.00- 7S ~ 7>> ~ 85 ~ Be. ~5>> C~P 120 VV 88>> BO. 73. QQ>> 80. 55. 50 e 135 ioo>> BS. BO ~ 74. SS. Q'7 ~
3.
150 100. no Bi. 74. BB Q I >>O
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165 ioe. 80. Bi ~ 74 ~ 88. 83 ~ B. 54 180 '. 00 ~ so. 82. 75. GS. IO 4 ~ 58. '4. 195 100. SO. BZ. 75. 70 84 ~ 58. o 210 100. So. 82. 75. '0.
- 84. 5 U
}00. so. 8'o 75. 70. QV>> 513>> 55 1( 225 240 100 ~
c)0 Bf, 75>> 70 80. '8. 255 }00, 8 (.) 75. '
'0 85 80, 58.
CD 270 }OV. BQ ~ 75. ~ ~~Q
~
285 }00 8=. /5 ~ 70. Qo ~ Qo :)6. 300 ivo. so ~ 8>> ~ 75>> 7( ~
- 64. 80. \+ 3 ~
315 100. $ 0. 74. 84. 58>> 55. 330 100 ~ BO ~ Bi. 74. 88. 83. 58. 54 ~ 315 }00 ~ BS. 80. 74. GB. 83. 58. 54. 1000 2000 30OO 4Xe 50eO OOOO 700O 80OO Distance From Siren lfeetl Computer Analysis by: (QQQoi ACOUSTIC TECHNOLOGY INC.
SOUND PRESSURE LEVELS ARIZONA PUBLIC SERVICE COMPANY Pafo Verde NucIear Generating Station alREN 68 0 100.ORY Bi. 74. 69 ~ 84. 59. 54. 100. 81. 74 68 83. 58. 54.
'0 15 100. BS ~ 81. '4.
67
~
~ G2. 57. 52 45 100. 88 80. 73. 88 ~ Gv. 55 '0.
60 100'00.
'B
~ 80. 7.3 ~ ~ o7 ~ 62. '0 51.
75 SS. 80. 73 ~ G7. 81. ~ 50 90 100. BB ~ 80. 73 GB. SG. 55. '0 1O5 100 BS. 80. '2 SB. 80. Bing
- 55. '0.
I st 12O 135 100
'00.
89. BS. 80.
- 80. 73
~
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87. Io s, ~ Cs a ~ 55. 57. 50. 52. 150
'00 BS. 81. '4.
- 88. 83. 58, 53 165 '00.
$ 0. 81. 74. 68. P%
QD W
~ 59. '4.
180 100. SO. 82. 75. 70. G4. 59 55. 195 100 90. 82. 75. 70. 6 ss
. 55 o 210 '00.
9'1. 82 ~ /6 ~ 70. w5 I 60 ~
'8 L, 225 100. 82. 78. 70. 85. 80 ~ '
'8 240 100. 90. 78 71 ~ 65. GO. TO ~
255 100. SO ~ 82. '
'8
- 71. 85. 56.
270 100. 90. 6'2. L' 70. QQ ~ SO ~ 5$ . 285 100 90. 75. 70. 85. BO ~ 56. 300 '00. SO ~ 82. 75. 70. G5. BO. 58 315 100. 90. 82. 75. 70. 8>> ~ $0 '6. 330 100. $0 ~ 82. 75 70 '64. . 59. 55 345
'00 SO ~ 82. '5. '9.
- 64. 59 me
'000 2000 3000 4000 5000 6000 80OO DISt&hC& Ft'OAl Slf8h (fOBt)
Computer 4nolysis by: I
- Q~gc))+
ACOUSTIC TECHNOLOGY INC.
SOUND PRESSURE LEVELS dB) ARIZONA 'PUBLIC SERV}CE COMPANY Palo Verde Nuclear Generating Station S IPEN 0 AZ7 SOUND PRESSURE LEVELS PAD IUS 3 ETC 0 100. 82 75 GS $ 4. SS. 55. 15 100. 80. '1. '4. 88 83m 58. 100. ci0 81 74. $8 lg t) ~ 58. 53. 30 ~ A5 100. SO, 80. 74. $8 MZ ~ 57. 51. 60 100. 88. 80. 73. 87 81. 5G. 50. 75 100. 8 ci 80. 73. $7 8'1. 58. 50. 90 100. BS. 80. 73. 67 5$ ~ g 105 100 8ci 80. 73. 67 Bi. 55. 50. 120
'00.
BS. 80. 73 $7 81. 5$ . 50. oc'35 100. SO ~ 80. '4.
$ 7.
~
5$ . 51. 150 1. 00. So. 8'i . 74. 88 L)~P7
~ DBe 51.
165 100. SO. 81. 74. $8 62. 58. 52. 180 100. SO. 81. 74 ' $8 83. 58. 53. 195 100. SO. 82. 75. GS 64 ~ 58. 54. o 210 ioo. SO. BZ. 75. GS 84. 58. SS. Lt 225 100. SO. 82 75. 70 "85. So. 55. (p 240 100. SO.
'2
- 75. 70 65. 60. 5G.
255 100. 80, '2. 75 70 85. 60 5$ ~ CD 270 .'0. 30 3 ~
'B 70
'O 5$ ~
285 10O. =0. 82. 75. 70 LCa ~ 80. Sc ~ 300 100. Qo 82 75. 70 G5. 8'0. 58. 315 100., SO.
'2
- 75. 70 v5 ~ 58.
330 100. SO. '2. 75 70 BS. 80. 58. 345 100. SO. 82. '5. 70 64. SS. 55. 1000 2000 30OO ~000 5OOO 6OOO 7000 8O0O Distance From Siren (feetl Computer Analysts by: () ACOUSTlC TECHNOLOGY iNC.
SOUND PRESSURE LEVELS dB) ARIZONA'UBLIC SERVICE COMPANY Palo Verde NUclear Generating Station 8 IRGN 0 AZB SBUiXD PRESSURE LGi.'Ei S RADIUS 3 ETC 0 !00. $ 0. 81. 74 ~ ~ 58. 53. 15 !OO. Br 0 81. 74 ~ rQ ~ ~ Q4 ~ D7 r r 30 !00. =O. 80. 74. 87. orS r 45 !00. BO 80. ~ i Q7 55. 50, 60 !00. QQ u Jr 80. 7t ~ Q7 ~ 48. 75 !00. BB. 80. 73 87 ~ 55r 50. 90 !OO. BS. 80. '3r
- 86. Gil ~ DS ~ 50.
1OS !00. 8Cr 80. 73r 87r Ql ~ r+ D 50 ~ 8 12O 100. SB. 80. 74i ~ 87r Qr r 58. 50. o BB. 80. 73 r GG. '-0 . 55. 48.
'B
)35 150 100. 88 ~ 80. 72 ~ 65. 58, DS ~ 50.
165 100. Q7 ~ 78. 71 ~ 87r Qr ~ 58. 53. 180 !00. 86. 78. 74. 7i GB. GS. 40. 195 100. 87 77. 74. 70 ~ Q7r Ur ~ 42 210 !00. '8.
- 78. 7'. Qrr 3 ~ SB.
'4
- u. 225 100. BB ~ 78 ~ 70. Go ~ 55. r55 ~
'8.
240 ". 00. BO. 80. 74. GG. 82, 57 r 5 ~ 255 100. BO. 81. 75, QQ ~ 63. 58 54. oi 270 !00. 80. 8+ ~ 75. 70 Q4. 'Or Q5 ~ 285 !00. BO ~ 82. 7v '0 Q i ~ GO ~ 55. 300 100. BO. 84. ~ 75. 70 84. 0 ~
'55.
315 100. BO. 8 ~ 75. '0.
- 84. 55.
330 100. BO. 8'7 75 GB. 84. 58. 55. 100. $ 0. 82 88. 63. 58. 54.
'5 345 ~
1000 2OM 3000 4OOO 5OOO OOOO 7ooO 8OOo Distance From Siren tfeetl
< Computer Analysis by:
QQO~ ACOUEllC TECHNOLOGY iNC.
SOUND PRESSURE LEVELS dB ARIZONA P BLIC SERVICE COMPANV Palo V e Nvclear Generahng Sfafion SIREN 88
$ 0. 81. 74. 64. Sc 54.
0 15 100. 100. So. 8'1. 74. 69 88 '3.
~ 47
- 58. 54.
30 100. 90. 74. oB o~ ~ 57 =.'7
~ W ~
A5 100 $ 0. 80. 7< ~ 67 6Z. '7. 'ai s i ~ ~ 60 '00. 8$ BO. 74. 68 os ~ 5/ ~ 50 ~
'7
~
75 100. $0 80. '74. 67 6Z ~ 57. s ~ 90: 100. 89. 80 ~ 74. 67 BZ ~ 06 ~ 51 ~ 105 100. 0.
$SORY 80. 73 6 ~ . 57 1 ~
N 120 100. BS; BO. 73. 6S 60 ~
'5.
49. 135 100. 89. 80. 71. 65 o~ ~ 56 Z 150 100. BS. 80. 71. 67 os Spr 59. 165 100. BS. 78. 7'. 66 os 3 "i 55. 180 100. SO. 7S. 71. 65 60. 55. 50. I st 100. 90 ~ 80. 71 ~ ov 60. SS. 50. 210 100. SO ~ Bit 71. 65 60. 55. 44
'7
- u. 225 1GO. SP. BZ ~ 75. 70 BQ ~ ~7 ~
2d0 100. So. 8 75. 70 OVt 60, C 255 100. oo 8=. 75. 70 I% Qi> ~ BGt 270 100. BZ. 75. 70 ov ~ 60. 285 100. So. BZ. 75. 70 64. 60 ~ 300 315 330 345 100.
>00.
100. 100. SO. So. So. Cl 0 BZ BZ ~ BZ. 82.
~ 75.
75. 75 75,
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6li
~
~
~
6'o. vC CI C!
~
56, SS SS 55.
~
~
@co 2tXe 3000 4xe 5000 oooo 'IIO 8000 Distance From Shen . (feet)
Computer Analysis by: ACOUSTIC TECHNOLOGY INC. gQ) F I
SOUND PRESSURE LEVELS dB) ARIZONA'UBLIC SERVICE COMPANY Palo Yerde Nvclear Generating Station S IREE 0 AZB SOUND PRESSURE LEVELS RADIUS 3 =TC 0 100. 90. 81. 74. GB. $ 3. 58. 54. 15 100. Bo. Bo. 74. GS. 62. 5S. 53.
~r 51.
100. $ 8. $ 0, 73. 87 5$ I 30 ~ 1~ ~ , 45 1VV. SS. 80. 73 67 ~ $1 ~ 56 ~ 50. 60 100. SB, SO. '3. 6$ . 80. 55. 49 ' 75 100. 88 ~ So. 72 ~ GG. 80. 54. 9 r 90 100. SB. $ 0. 7 PP 85. $ 0. 54. 49. 1O5 100. 88 80. 72 ~ 68. 60. 54. 49. O 12O Oo. 88. $ 0. 72 ~ L70 r $ 0. 55. 49. a) .135 100. 89. So. 73 86. 61. 5$ . 51 ~ 150 100. 80. SO ~
'3.
- 67. I tO>>
t7
~ 57. 52 ~
165 aoo. Bo. 81. 74. $ 8. 6+ ~ 5$ . 180 100. 80. Si. 74 88. 62. 58. 53. 195 ,100. 90. 81. '4 GB. 83. 58. 54.- o 210 100. 90 '5.
- 68. 64. 59. 54.
8'2. 75., 5'5. tt 225 100. Bo. I- 8 84. 58. 280 100. 80. 82. /5 ~ 70 ~ 84. SO. 55. 255 100. Bo. 82. 75. 70 64. I;n 55. U) 270 :00. 90 9'7 75. '0.
$4 58. 54.
285 100. So. 82 ~ 75 $ 8. $ 4. 58 54. 300 100 90. '5. GS. 64. 58. 8'2. 75. 89. 64. 59. 54 315 '100. 80. 330 !100- 90. 82. 75. 69 ~ 64. 59. '4. 345 100. 80. 82. 75. 69. $ 4. 58. 54. 1000 2000 3000 4gO 5000 bMO 7000 8000 Distance From Siren tfeetl Computer Analysis by: (~QQo)) ACOUSTIC TECHNOLOGY tNC. N
SOUND PRESSURE LEVELS dB) ARlZONA'PUBLIC SERVlCE COMPANY 0 Palo Verde Nuclear Generafing Sfafion
- SiREN Ill AZ10
'OUND PRESSURE LEVELS RADIUS 3 ETC 0 100. SO.
8'3.
- 76. 7 I ~ 431 ~
~ 60. 55 15
.00. BO. ID ~ 70. 65 5$ ~
'5.
30 100. $ 0. 82 ~ 75. 70 ~ 64. 5B. 54. 45 100. I I) 81. 75. 70. 64 5cj 54. 60 100. BO ~ 8$ 75. 70. 5$ . 54. 75 100 BO. Bi. 74. 68. 63 58. 54. 90 100. $ 0. 80. 7 ~ IO 7 ~ 6'7 ~ 57. 52 1O5 100. 8$ . BO. 73. 67. SI ~
'0.
120 100. CI C\ BOY 73. 67 ~ 'LI 2 ~ 57. 52.
- 80. 74. g I 53 I
100. 8$ . GB ~ IO a ~ 135'U 150 100. SB. BO. 74 68. 63. 58. '3. 165
- . 100. BOER
$ 0. 81. '4.
6$ . G4. 5S ~ 54. 180
- 100. $ 0. 81. 75 70 64. 5$ . 54 195
- 100. BO.
8'2.
'5
'0.
- 64. 5$ . '5.
210 100. $ 0e '5.
- 70. 65. GO. 55.
100. BO. $2 75 70. G4. GO 56.
'00.
~ ~
225 , 240 $ 0. 8'2.
'5.
- 70. 65r GO ~ 5A ~
255 100. $ 0. 75. 70, S4. 5 I 55. cA 270 i,00 ~ SO. 81 ~ 74 70. 64. 58. 51. 285 100 $0 ~ 82. '5
- 70. 64. 5$ . 52 300
'00 SO 8'2.
'5.
- 70. 65. 5$ . '5.
315
'00.
$ 0. 75. 70. 65. SO. 56 330 100. 82. 76 71. 66. 61. '7.
345
'100. $ 1. 83- '76.
- 71. 65. GO. 56.
1000 2000 3000 4000 5000 6000 7000 8000 Distance From Siren [feet] Analysis by: i Compufer QQOO ACOUSTIC TECHNOLOGY INC. a N y4Y y-,Y- ' Y,i~l C ~,, a.IP.
SOUND PRESSURE LEVELS dB) ARIZONA'UBLIC SERVICE COMPANY Palo Verde Nvclear Generafing Stafion SEREN 0 AZ11'OUND PRESSURE LEVELS RADEUS 3 ETC 0 '00. $ 0. 82. 75. 85. SS. 54. 48. 15 100. SO. SZ ~" 75. 88. 58. 56. 53 ~ 30 100. COD 82 ~ 75. Loj s 5S. 53 45 100. 80, Si. 74. 88 54.
- 80. 74,
'8.
60 '. 00 ~ BS. 'B. 82 58. 75 100. BS. 80. 74 88. 'l.
- 55. 50 90 100. ~
- 88. 7S. '2 OlD ~ 80. 54 '0.
105 100. BS. 80. '3. GB. 81. '5. 48 0) 12O . 100. 88. 80. 73. 88. Gi. 5G ~
'0.
88 80.= 73. QC) ~ Dl ~ 58 50. 150 : 100. 'i.
- 85. Gi. 81 s 52 ~
'0.
28 165 -100. BG. 77. GB. Bi. 58. 58. '1. 180 '00. Bc} 80. 74 88. 82 58. 52. 1Ri 100. BS, 80. '4. GB.
'2
- 58. 53 210 100. 88. 80. 74. 88. '3.
- 58. '4.
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lOOO 2000 3000 4m 5OOO 6OM 7OOO 8OOO Distance From Siren f feet)
~
Compufer Analysis by:
,, gg~O@~y ACOUSTIC TECHNOLOGY INC.
SOUND PRESSURE LEVELS dB) AH~ZONA PUBLIC SEFV)CE COMr>XV Palo Verde Nuclear Generating Station SIREN @ AZi2'OUND PRESSURE LEVELS RADIUS 2 3 ETC 0 100. 100. 90. 89. 83. 80. 71.
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dB ARIZONA PUBLIC SERVICE COMPANY Palo Verde Nuclear Generntl'ng Station SIREN 128 0 100. SO. 81. 74 ~ GB. 63. 58. c3
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ACOUSTIC TECHNOLOGY INC.
SOUND PRESSURE LEVEf S dB) ARIZONA'UBLIC SERVICE COMPANY Palo Verde Nuclear Generating Station SIREN N AZ13
'OUND PRESSURE LEVELS RADIUS 3 ETs 0
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loOO 2000 3000 4Xe 5OOO OOOO 7OCO 8OOO Distance From Siren tfeeti Computer Analysis by: QOO~) ACOUSTIC TECHNOLOGY INC. I
- I e t ~" ~e t'e'e'" t I 'e
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'OUhlo PRESSURE LEVELS RADIUS 3
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.-...< Computer Analysis by:
~(Q~QQ~O~+>~
ACOUSTIC TECHNOLOGY 1NC.
SOUND PRESSURE LEVELS dS) AR~ZoNA "PUBLIC SERVlCE ColVlPANY Palo Verde NUclear Generofing Sfafion ( SiiREIN 0 AZ15'OUND PRESSURE LEVELS RADiUS 3 ETC 0 100. 89. 80. 75 70 W>> dD ~ 60. 55. 15 100. Q CB 80 '5. 70 64. Sn 55 ~ 30 100. BS. 0.
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345 T'00 ~ 89. 81'. 75. 70 85. 80. 58. 2000 3000 4000 5000 6000 7000 Distance From Siren [feet) I
.,--.~ Computer Analysis by:
ACOUSTIC TECHNOLOGY INC.
/" /,
/
4 /
SOUND PRESSURE LEVELS dB) ARIZONA "PUBLlC SERV)CE COMPANY Palo Verde Nvclear Generating Station S I REIN 0 AZ18
'OUND PRESSURE LEVELS RADIUS 3
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+QQQO~)~
ACOUSTIC TECHNOLOGY INC.
- 4'; e
SOUND PRESSURE LEVELS dB) ARIZONA'UBLIC SERVICE COiMPANY Palo Verde NUclear Generating Station SIREN ¹ AZI 7
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2000 3OOO 5000 OOOO 7000 . SOOO
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>Computer Analysis by:
~QO ACOuSTlC TECHNOLOGY INC r
"i l
iiE
SOUND PRESSURE LEVELS dB) ARIZONA 'PUBLIC SERVICE COMPANY Palo Verde NUclear Generating Station i S REYi N A218
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2000 3OOO 4OOO 5OOO OOOO 7OOO Distance From Siren (feetl
;.,-> Computer Analysis by:
TECHNOLOGY INC. e O) ACOUSTIC I
SOUND PRESSURE LEVELS dB) ARIZONA'PUBLIC SERVICE COMPANY Palo Yerde Nuclear Generafing Stafion SIREN 0 AZ18
'OUND PRESSURE LEVELS RADIUS 3 ETC 0 "100. Bo. 81. 74. BB. 63. 5S. 53.
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-- --> Compufer Analysis by:
(QOQ@)~ ACCUSE'IC TECHNOLOGY INC.
SOUND PRESSURE LEVELS dB) ARIZONA PUBLIC SERVICE COMPANY Palo Verde Nuclear Generating Station SIREN 0 AZ20
'OUND PRESSURE LEVELS RADIUS 2 3 ETC 0 ; 200. BB.
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345 '100. Bo. 81. 69 64. 58. 54. 1000 2000 300O 4000 '5000 WOO mO SOOO Distance From Siren [feet]'omputer Analysis by: (iQOo~ Acoustic TEcHNoLoov INc. l
SOUND PRESSURE LEVELS dB), ARIZONA PUBLIC SERVICE COMPANY Palo Yerde Nvclear Generafing Sfation SIREN 0 AZ21
'OUND PRESSURE LEVELS RADIUS 3 cIr e v Sled 0 ioo. Si ~ 83. 7$ . 71. 88 80. 55.
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- 78. 71. 66 60. "54.
1000 2000 3000 4000 5000 8KO 7000 8OOO Distance From Siren (feet)
. iCompufer Analysis by:
+!QQOo+ ACOUSTIC TECHNOLOGY INC.
e
SOUND PRESSURE LEVELS dB) ARIZONA"PUBLIC SERVICE COMPANY Palo Verde Nuclear Generafing Stafion
- SIREN A AZZZ'OUND PRESSURE LE'VELS RADIUS 3 ETC 0 100. 80. 82. 75. 64. 58. 54.
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~ ...> Computer Analysis by:
++QOo)
Acousric TEcHNoLooy INc
'1
SOUND PRESSURE LEVELS dB) ARIZONA'UBLIC SERVICE COMPANY Palo Verde NUclear Generating Station SIREN 0 *AZ23
'OUND PRESSURE LEVELS RADIUS 2 3 ETC 0 100. Bi. 83. 76. 71. $5 ~ 80. 58 e 15 loped 100, Bl. 83. 7$ . 71. 85. 60. 55.
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... -. >Computer Analysis by-IF
~
4 ((((~i ACOUEl1C TECHNOLOGY INC. 4 ~
/
1% I SOUND PRESSURE LEVELS dB) ARIZONA 'PUBLIC SERVICE COMPANY Palo Verde Nuclear Generating Station SIREN i)) AZZ4 SOUND PRESSURE LE<,)Ei 8 R)-") 0 I US 3 ETC I i100. BO. 82 75. 68. 83. 58. 15 0
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- , ....>. Computer Analysis by:
~QQ(Ogog~)
ACOUEflC TECHNOLOGY )NC. t
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'... - .> Computer Analysis by:
gQOO)~, AcousrtC TECHNOLOGY INC.
0 SOUND PRESSURE LEVELS dB) ARIZONA'UBLIC SERVICE COMPANY Palo Verde Nuclear Generating Station SIREN 4 Ai26 SOUND PRESSURE LEVELS RADIUS 3 0 iaa. 90. 81. 74. GS. 5S. 53 15 ;00. $ 0, 80. 74. GS. 62 th Q
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Analys>s by:
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ACOUEY(C TECHNOLOGY INC.
SOUND PRESSURE LEVELS dB) ARIZONA'UBUC SERVICE COMPANY Palo Verde Nvclear Generafing Stafion SIREN N AZ27
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s e Q ;(PQQO+g> ACOUSTIC TECHNOLOGY lNC.
SOUND PRESSURE'LEVELS 18) ARIZONA"PUBLIC SERVICE COMPANY Palo ¹rde Nvclear Generafing Sfafion SIREN ¹ AZ28
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.l Computer Analysis by:
.,(++ate)>
Acousnc TEcHNoxoov lNc.
SOUND PRESSURE LEVELS dB) ARIZONA PUBLIC SERVICE COMPANY Palo Verde Nuclear Generating Stcifion SIREN IIII AZ2$
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SOUND PRESSURE LEVELS dB) AR!ZONA PUBLlC SEFVlCE COMPANY Palo Verde Nuclear Cenerahng Station SIREN 29B 0 100. BO ~ 81. 75 84 5S. 55. 100. So. Bi. '4 GB. ~ 84 59 54 15 30 100 SO ~ 81. '4 GB. r.
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SOUND PRESSURE LEVELS dB) ARIZONA"PUBLIC SERVICE COMPANY Palo Yerde Nvclear Generating Station SIREN 4 AZ30
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'Oo ACOUSTIC TECHNOLOGY INC.
SOUND PRESSURE LEVELS dS) ARIZONA PUBLIC SERVICE COMPANY Palo Verde Nuclear Generafirg Sfofion Bing SIREN 3GB 0 100. So. 74. BS. 83 ~ 58 54 15 100. So. 81. 74 88. 83 ~
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~~(QQo+j~
ACOUSTIC TECHNOLOGY tNC. y, I
SOUNl3 PRESSURE LEVELS dB) ARIZONA"PUBLIC SERVICE COMPANY Palo Yerde Nvclear Generafing Sfafion
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1000 20 3000 4000 5000 6000 7000 8000 Distance From Siren (feet) e -> Comptjfer Analysis by:
~Q~~Beg~+
ACOUSTIC TECHNOLOGY INC.
SOUND PRESSURE LEVELS dB) ARIZONA'UBLIC SERV)CE COMPANY Palo Verde Nvclear Generating Station I SIREN 0 AZ32 SOUND PRESSURE LEVELS RADIUS 3 ETC 0 100. $ 0. 82. 74. 84. 5S. 55. 15 100. SO ~ 81. 7 4' Lo8 ~ G3. 5$ . 54. 30 100. $ 0. 8 ii ~ 74 ~ 68. Q2 ~ 58m 54. 45 100. $ 0. 80. 74. 67 ~ Pl P) Q~ ~ 57. 52 ~ 60 100. 89 ~ 80. 73. Pl Q CS ~ 61. 58. 51. 75 100. 89. 80. 73. 65. 55 50.
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~Computer Analysis by:
'ti(gQ)gI ACOUSTIC TECHNOLOGY INC.
SOUND PRESSURE LEVELS dB) ARIZONA 'PUBLIC SERVICE COMPANY Palo Verde Noclear Generating Stafion SIREN 4 AZ33'OUND PRESSURE LEVELS RADIUS 3 ETC 0 100. 80 81. 75. $ 4. 58. 55-15 100. 80. 81. 75. 68. <<>> 4 58. 54. 30 <00. c:0 Bi. 74. $ 8>> Q>>O ~ 56>> 54. 45 100. 80. 81. 74. $ 8, D>>>> ~ 58. Q3 ~ b0 100, SO. 80 ~ 74. $ 8. $ 2>> 58. 53-75 100 88. 80. 74. $7 ~ 57. 52. g 90 105 120 us 100. 100. V
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-'-- -; Compufer Analysis by:
q Q ACOUSTIC TECHNOLOQP )NC.
SOUND PRESSURE LI=VELS dB) ARIZONA PUBLIC SERVICE COMPANY Palo Yerde Nuclear Generating Station SIR" ill ¹ AZ34
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<g<(QOo~>>
ACOUSYIC TECHNOLOGY INC.
SOUND PRESSURE LEVELS dB) ARlZOXA t Uat ~C SERVICE COMPANY Palo Verde Nuclear Generafing Sfafion S IREE 0 AZ35 SOUND PRESSURE LEVELS RADIUS 3ING 3 0 100 ~S ~ SO. pc 54. 15 QC V ~ 80. 74 ~ L1 C ~ Q4 a 58. 53. 30
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+CQOO'COOSTIC TECHNOLOGY INC.
~,
SOUND PRESSURE LEVELS dB) ARIZONA l UBLIC SERVICE COMPANY Palo Verde NUclear Generafing Sfation SIREN 8 AZ38 SOUND PRESSURE t EVELS i RADIUS 1 3 ETC II 0 100. BO, Si. 74 68. 58. 53, Gi. N 15 .100. BO. SO.
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APPENDIX 3 60 cIBC SOUND CONTOURS Q(<@ ACOUSTIC TECHNOLOGY INC.
3 CONTENTS ALTERNATIVE 1 and 1B: Complete Siren Coverage Sirens 1-36 of populated areas ALTERNATIVE 2: Siren Coverage of High-Density Sirens 51-60 Areas Using a 130 dB siren rating ALTERNATIVE 2B: Siren coverage of High-Density Sirens 51B-61B Areas Using a 122 dB siren rating (Qo)) ACOUSTIC TECHNOLOGY INC.
ALTERNATIVE l AND ALTERNATIVE lB SOUND LEVEL CONTOURS Q ACOUSnt: TECHNOLOGY INC. oo> I l.
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