ML20128K027
| ML20128K027 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 05/29/1985 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20128K024 | List: |
| References | |
| NUDOCS 8507100464 | |
| Download: ML20128K027 (100) | |
Text
. .
LA SALLE NUCLEAR POWER STATION SITE-SPECIFIC OFFSITE RADIOLOGICAL EMERGENCY PREPAREDNESS ALERT AND NOTIFICATION SYSTEM QUALITY ASSURANCE VERIFICATION Prepared for Federal Emergency Management Agency Washington, D.C. 20472 Under Contract No. EMN-83-C-1217 May 29, 1985 l
l 64 850701 kDR kDgCK05000373 F
LA SALLE NUCLEAR POWER STATION SITE-SPECIFIC OFFSITE RADIOLOGICAL EMERGENCY PREPAREDNESS ALERT AND NOTIFICATION SYSTEM QUALITY ASSURANCE VERIFICATION Prepared for Federal Emergency Management Agency Washington, D.C. 20472 Under Contract No. EMW-83-C-1217 May 29, 1985
TABLE OF CONTENTS I. INTRODUCTION 1 A. Identification 1
- 1. Site Information 1
- 2. Governments Within The 10-Mile Emergency Planning Zone 2 B. Scope Of Review 3
- 1. Emergency Plans For Off site ,
Response Organizations 3
- 2. Alert And Notification System Design Report 4
- 3. FEMA Evaluation Findings 4 II. FINDINGS FOR EV ALUATION CRITERION E.6 6 A. Administrative Means Of Alerting (E.6.1, FEMA-43) 7 B. Physical Means Of Alerting (E.6.2, FEMA-43) 9
- 1. Sirens (E.6.2.1, PEMA-43) 10
- 2. Special Alerting (E.6.2.4, FEMA-43) 21 III. FINDINGS FOR EVALUATION CRITERION N.1 23 IV. FINDINGS FOR EVALUATION CRITERIA E.5, F.1, N. 2, N. 3, AND N. 5 31 REFERENCE LIST 32 APPENDIX At OSPM Topographical Profile Charts OSPM Topographical Input Data OSPM Siren Sound Pressure Level Input Data OSPM Meteorological Input Data OSPM Siren Sound Pressure Level Output Data APPENDIX B: Sample Size Determination
La Salle Nuclear Power Station Site-Specific Offsite Radiological Emergency Preparedness Alert And Notification System Quality Assurance verification State Of Illinois La Salle County Municipality Of Grand Ridge Municipality Of Marsellies Municipality Of Ransom Municipality Of Seneca Grundy County Municipality Of Kinsman Municipality Of Verona Livingston County I. INTRODU CTION A. Identification
- 1. Site Information The La Salle Nuclear Power Station, operated by the Commonwealth Edison Company, utilizes two 1078 mie (not) General Electric boiling water reactor electric generating units. Unit 1 began commercial operation in 1982; Unit 2, in 1984.1 The La Salle Nuclear Power Station is located in Brookfield Township in La Salle County, Illinois. It is located in the northeastern portion of Illinois, approximately 7 miles south-southeast of Marseilles, 5 miles south of the Illinois River, and 6 miles couthwest of Seneca.
I 1
The land within a 10-mile radius of the La Salle Nuclear Power Station is generally flat with scattered wooded areas and is primarily uced for agricultural purposes.
- 2. Governments Within The 10-Mile Emeroency Plannino Zone The emergency planning zone ( EPZ ) for the La Salle Nuclear Power Station is defined by a 10-mile-radius circle with the La Salle Nuclear Power Station as the center point. The EPZ, located entirely in the State of Illinois, includes portions of La Salle, Grundy, and Livingston Counties. The La Salle and Grundy County line is oriented north-south across the EPZ, approximately 4 miles east of the La Salle Nuclear Power Station. La Salle County, located to the west of this line, occupies the majority of the EPZ.
Livingston County extends less than 1 mile into the southern section of the EPZ and contains only a small number of residences. For practical purposes, the portion of Livingston County within the EPZ is treated as an extension of the jurisdiction of La Salle County.
There are six municipalities located within the La Salle Nuclear Power Station EPZ Grand Ridge, Marseilles, Ransom, and Seneca in La Salle County and Kinsman and Verona in Grundy County. The total 1980 population within these six municipalities was 8409 persons: 4766 persons were located in Marseilles, 2098 persons in Seneca, and less than 700 persons in each of the remaining municipalities. The 1980 population within 5 miles of the La Salle Nuclear Power Station wan 729 persons. An additional 3759 2 ,
persons lived in either rural residences or on f armsteads between 5 miles and 10 miles f rom the La Salle Nuclear Power Station. The above population figures were obtained f rom the Illinois Emergency Services and Disaster Agency and Commonwealth Edison Company's "An Off-Site Emergency Plan Alert and Notification Addendum for the La Salle Nuclear Power Station," as supplemented by an operational reliability statement forwarded by FEMA Region V (hereinafter referred to as the Design Report).2 Recreational facilities within the La Salle Nuclear Power Station EPZ include a 60-acre park with camping f acilities on the southwest shore of the site's cooling lake. This 2058-acre cooling lake is used for recreational boating and fishing. Approximately 6 miles north-northwest of the La Salle Nuclear Power Station is the 510-acre Illini State Park, which is EE used f or camping, boating, picnicking, and fishing.
There are no airports, government installations, or correctional facilities within the La Salle Nuclear Power Station EPZ.2 B. Scope Of Review
- 1. Pmeroency Plans For Off site Response Oroanizations The emergency plans and implementing instructions for j urisdictions within the La Salle Nuclear Power Station EPZ include
. "The Illinois Plan for Radiological Accidents,"
Volumes I and III, March 1982.3 L
3
Ref erences 2 and 3 above document the administrative means established for notifying and providing prompt instructions to the public within the La Salle Nuclear Power Station EPZ.
- 2. Alert And Notification System Design Report The physical means established for alerting the public within the La Salle Nuclear Power Station EPZ are documented in Sections 2.3, 2.4, and supporting Appendices of the Design Report.
- 3. FEMA Evaluation Findinas FEMA Region V and the Regional Assistance Committee have evaluated four offsite emergency response exercises for the La Salle Nuclear Power Station:
. FEMA, " Post Exercise Evaluation, State of Illinois and Grundy and La Salle Counties Exercise of the Illinois Plan for Radiological Accidents for La Salle Nuclear Power Plant, December 4,1980" (No date);4
. FEMA, " Final Report, La Salle Nuclear Power Station Full-Scale Exerciso, April 14-15, 1982,"
May 1982;5
. FEMA, " Exercise Final Report, La Salle Nuclear Power Station Joint Radiological Emergency Exercise," July 12, 1983;6 and
, . FEMA, " Exercise Report, La Salle Nuclear Power Station, Joint Exercise (Partial Participation),
October 10-11, 1984," November 26, 1984; also, revisions of March 26, 1985.7 4
In a letter to the Honorable James R. Thompson, Governor of Illinois, dated June 4,1982, signed by Lee M. Thomas, FEMA Associate Director, State and Local Programs and Support, the La Salle Nuclear Power Station received FEMA approval under Title 44 of the Code of Federal Reculations, Part 350 (44 CFR 350) conditioned upon verification of the adequacy of l the public alert and notification system.8 s
5
II. FINDINGS FOR EVALUATION CRITERION E.6 The Design Report describing the alert and notification system for the La Salle Nuclear Power Station was reviewed against evaluation criterion E.6 and Appendix 3 of NUREG-0654/PEMA-REP-1, Revision 1, " Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness in Support of Nuclear Power Plants" (herein-af ter ref erred to as NUREG-0654/ FEMA-REP-1, Rev. 1). This evaluation criterion states:
Each organization shall establish administrative and physical means, and the time required for notifying and providing prompt instructions to the public within the plume exposure pathway Emergency Planning Zone. (See Appendix 3.) It shall be the licensee's responsibility to demonstrate that such means exist, regardless of who implements this requirement. It shall be the responsibility of the State and lo governments to activate such a system. gal
, The bases for review against this evaluation criterion were the corresponding acceptance criteria of FEMA-43, " Standard Guide for the Evaluation of Alert and Notification Systems for Nuclear Power Plants" (hereinafter referred to as PEMA-43).10 This quality assurance verification review was perf ormed to make a determination of alert and notification system adequacy prior to conducting a demonstration of this system for the La Salle Nuclear Power Station on December 4,1984.
l Based upon this quality assurance verification review and public survey results, International Energy Associates Limited concludes that the design and implenentation of the alert and notification system for the La Salle Nuclear Power Station and its supporting procedures conform suf-ficiently to the acceptance criteria, as stated in FEMA-43, t
6
f or evaluation criterion E.6 of NUREG-0654/ FEMA-REP-1, Rev.
1, to support a FEMA finding that the alert and notifica-tion system is adequate.
This portion of the quality assurance verification review discusses La Salle Nuclear Power Station's alert and notification system against FEMA-43 acceptance criteria in the following areas: the administrative means of alerting, the physical means of alerting, and the special alerting methods (utilization of institutional alerting systems) .
A. Administrative Means Of Alerting (E.6.1, FEMA-43)
The Design Report and the Illinois Plan for Radiological l Accidents address those organizations or individuals within the state and local governments who are respon-sible for alert and notification system activation. The decision logic shown in, Figure 1 was developed af ter a review of the current emergency procedures for the State of Illinois, La Salle County, and G rundy County.
As Figure 1 indicates, these procedures satisfy FEMA-43 acceptance criteria. These current emergency procedures document the responsibilities concerning the alert and notification system activation process f rom the time a decision is conveyed via the Illinois Emergency Services and Disaster Agency Coordinator to the La Salle County and Grundy County Sheriffs' Dispatchers (who physically activate the sirens) .
In the event of a radiological emergency at the La Salle Nuclear Power Station, principal emergency response organizations are notified via the Nuclear Accident Reporting System. The Nuclear Accident Reporting 7
FIGt LA SALLE NUCLEAF ALERT AND NOTIFICATI0ft SYSTEM ACTI La $411e County Sheriff $eneca g, $,gg, c Police Otspat. 3,g cher, Marseflies Police Dispat- [],M[ ,r
+ cher Ransom Fire -
Grand Ridg Dept. And Grand Receive Na Ridge Fire Dept.
Pecetyg Notice La Salle County ESDA Coordina. La Salle C
- -* Chairman a tor Receives No.
- ttce tice La salle County Sheriff's 01 spat-
- cher Receives No. --
tice From E$0A Institutto
- Coordinator + La Salle C ceive Noti lilinois Emergency
~
Services And Otsas.
ter Agency (E$0A)
. Receives Notice Consonwealth Edison Co. System Power Ots.
patcher Receives No*
_
- Institutic
+ Grundy Cou tIce Grundy County C'i Noli
- $heriff's 01 spat.
(Or) + cher Receives No. -
La Salle Nuclear
- tice From E50A Power Station De- Coordinator termines Level of Corporate Connand Cen.
-+ ter Director Recetves Grundy Coutity E$0A Grundy Cou Emergencyn $tation - -
Notic, Coordinater Aeceives Chairman i Ofrector initiates + -.
Notice 30ttfication Pro- Notice cess Grundy County Sher.
if f'.s Of fice Re.
Ceives Notice Morris Police / Fire
+ 11spatcher Re. . Morris Na; cetves dotice Receives >
Radiological As-sessmenc Field
- These organtaations are capable of communicating via the Team (RAFT) Is Nuclear Accident Reporting $ystem (NAR$). NAR$ is utt1 Otspatched to tred by Commonwealth Edison Co. to provide initial noti. e The $1te fication to other organtaations of a radiological fact.
Illinois Department dent at the la Salle Nuclear Power Station. NAR$ is also Of Nuclear $afety used to provide a continual update on the status of a ra. -,
di:. logical incident. NAR$ is a state. wide system (DNS) Receives No-Ettllaing private ufre telephone circuits. LIC' no AvalIable on l:0;'g,;;Mne-Aperture Card gage,gc)li TI APERTUllE '
CARD w
1 l
l RE 1 POWER STATION 1ATION DECISION / ACTION SEQUENCE DIAGRAM La Salle County Sher.
ty Board iff, Seneca Police La Salle County Sher.
neca May. La $alle County, Seneca. Dispatcher, Marseilles iff, Seneca Police les Mayor, Marsettles, Ransom And Police Otspatcher, Otspatcher, Marset tles
)tdent And Grand Ridge Emergencf _ Ranson Fire Dept. And Police Otspatcher,
- Operations Centers Ranson Fire Dept. And
) President Grand Ridge Fire Dept.
)1ce Are Activated Receive Notice Of De. frand Ridge Fire i
La $alle County Board cision To Activate Cept. Initiate Route
~
Chairman Receives No. "
Alerting La Salle County [mer*
tice of Decision To nty Board Activate La Salle County Board l WCMY/WRKX In.
elves No. - - -
- gency Operattens Cen. . D airman Supoltes itiates Emergen.
ter is Activated <
WCMY/WRKX (E81) Wit'l j cy Broadcasting
, Emergency Broadcast And Notif tes Lo.
La Salle County Sher.
)sWithin tff's Dispatcher Re* La Salle County
)inty Re. Illinois State (mer. Cetves Notice Of De* Sheriff's Otspat.
. pncy Operations Cen- ctston To Activate Je ter Is Activated cher Activates
$1rens forward Cosmand Post ls Activated Governor Governor's Of fice or WCMY/WRKI In-
. Cr ESCA 01 ESCA Supplies WCMY/ lttates Emergency SWithin rutor Maku De* ~
Broadcasting And ctston To Activate WAKX (t8$) With Emer.
Dty Re. -
gency Broadcast Message Nottfles local Alert & Nottffca. EBS Afftltates tio.1 $3 stem btyBoard GrunJy County Emer.
Metves - gency Operations E- Center is Activated Grundy County Sher.
iff's Otspatcher Re. Grundy County Sher.
tff s Olspatcher ceives Nottce of Co.
etston To Activate Activates $1rens Morris Emergency Op. Grundy County Board WCMY/WRKX Int.
--+ erstions Center Is Grundy County Soard Chairman Suppites ice Chairman Receives No. / tlates Emergency Activated -
WCMY/WRKX With Emer.
BrudcutW W 0 "III " 8 gency Broadcast Hes.
,,t Nottfles Local (8$
sage Af flit ates Grundy County $hertff Grundy County Sher.
Receives Notice Of iff Initiates DNS Provides Recom. g,ggston To Activate Route Alerting e _ mendations Based On "*"
Independent Assess.
ment Morris Police /ftre Morris Police /Ftre Otspatcher Receives ; Otspatcher Initiates Neare$tte Emergency Not f ecision gogg,gg,pgg,9
- Operations Center It Activated l
- Corporate Command Center Is Activated 1
I
System, a state-wide warning system utilizing private wire telephone circuits, is also used by the licensee to provide a continual update on the status of a radio-logical incident and on recommended protective actions.
The Nuclear Accident Reporting System provides the capability to communicate simultaneously among all principal emergency response organizations. The La Salle Nuclear Power Station, Illinois Emergency Services .
and Disaster Agency, Illinois Department of Nuclear Safety, Grundy County Sheriff, and La Salle County Sherif f utilize the Nuclear Accident Reporting System.
Procedures for the primary Emergency Broadcast System
( EB S) station, WCMY, include the recording of EBS messages as dictated by state and local representa- -
tives. These recorded messages are then broadcast to the public and are relayed to nearby EBS affiliates. ?
Additionally, all Emergency Operations Centers (EOCs) have the capability to monitor EBS broadcasts.
The aforementioned exercise evaluations and the approval under 44 CFR 350 (see ref erences 4, 5, 6, 7, and 8) demonstrate that the administrative means are in place to provide prompt notification to the general public in the event of an emergency situation at the La Salle Nuclear Power Station.
B. Physical Means Of Alerting (E.6.2, FEMA-43) >
The alert and notification system for the La Salle Nuclear Power Station consists of 39 fixed sirens and existing emergency / law enforcement vehicles for route alert and notification. The 39 fixed sirens are utilized primarily within the 0-to-5 mile radius area and also to cover densely populated sections within the 9
5-to-10 mile radius area. Existing emergen;y/ law enforcement vehicles are utilized to traverse predetermined mobile alert and notification routes within the remaining populated geographical areas of the EPZ .
- 1. Sirens ( E. 6.2.1, FEMA-43 )
The siren system of the La Salle Nuclear Power Station is comprised of 39 fixed sirens: 22 Federal Signal (PS) Model 1000 Thunderbolt rotational sirens rated at 125 dBC, seven FS STH10 omni-directional sirens rated at 112 dBC, two FS Model 2 omni- )
directional sirens rated at 98 dBC, and eight FS Local Coverage omni-directional sirens (LCS) rated at 85 dB C. Siren locations, mounting heights, ratings, and estimated ranges are shown in Table 1 of Appendix C of the Design Report. In addition, their locations are also indicated on the Siren Contour Map (Appendix D of the Design Report) .
The Design Report, as supplemented by an operational reliability statement forwarded by FEMA Region V, describes the methods by which the siren system's annual reliability is calculated. For the 12-month period f rom May 1983 through April 1984, the overall siren system reliability level was 94.4%, exceeding the FEMA-43 acceptable value of 90%.
Siren anechoic-chamber measured octave band sound pressure spectra of the sirens (Appendices J and K of the Design Report) were used to verify their rated output at 100 f t. The evaluation of the siren system design calculation procedure was conducted by 4
10
verifying and comparing the design calculation procedure (as presented in Section 2.4.2 of the Design Report) with outdoor Sound Propagation Model (OSPM)11 results for specific sirens.
The La Salle Nuclear Power Station siren alerting system design follows the 10 dB loss per distance doubled attenuation rate as recommended in NURDG-0654/PEMA-REP-1, Rev. 1, in the absence of intervening topographical features. Kurz e's point source barrier attenuation formulation,12 with a cap of 24 dB maximum, was applied f or topographical features that presented barriers. A logarithmic superposition was used when computing the locations of 70 dBC contour lines that were influenced by two sirens. However, no credit was taken for this additive ef f ect when computing 60 dBC contours.
These procedures were applied to the system of 39 fixed sirens resulting in the Siren contour Map contained in Appendix D of the Design Report. The Siren contour Map also depicted geographical areas with population densities greater than 2000 persons per square mile. Population distributions based on 1980 census data were shown in Table 2.3.1 and Figure 2.3.1 of the Design Report.
The Design Report, in Section 2.4.4, further states that the design objectives were to achieve a minimum of 70 dBC coverage in areas where the population density exceeds 2000 persons por square mile and a minimum of 60 dBC in other populated areas.
The Design Report states that the La Salle nuclear Power Station airen alerting system, as depicted in combination with emergency / law enforcement vehicles A ' traversing predetermined mobile alert and notifi-cation routes, provides 100% coverage of the EPZ.
11
This evaluation seeks to ascertain whether the design procedure (with its assumptions) adequately accounts for the site-specific terrain and weather conditions and whether the ciren system an designed does indeed meet FEMA-43 acceptance criteria.
Six sirens were celected for this quality assurance i verification review. Three FS 1000 cirens (Nos.1, f.
3, and 6A), two PS STH10 cirena (Nos. 2 and 13) , and one PS LCS (No. 12) were chosen for individual siren range comparisons. The three sirens (Non.1, 2, and
- 3) in Marseilles Township (see Figure 2 of this report) were chosen for superposition airen coverage eval ua tion. Site average summer daytime weather conditions were derived f rom over 40 years of Peoria National Oceanic and Atmocpheric Administration weather data that was provided by the licensee's consultant. Appendix A contains OSPM topographical 8 profile charts, OSPM topographical input, OSPM cound $N proccuro level input, OSPM meteorological input, and OSPM sound pressure icvel output for each of the cix individual siren runn.
The OSPM results were classified, according to terrain profiles f or each niren type, into three categoriens hilly, partially hilly, and relatively flat. Regressions of dBC vernun the logarithm of distance were performed for the PS 1000 and the FS STH10 airens over each terrain category with the results depicted in Figures 3 through 8 of this report. The rangen of 70 dBC and 60 dBC as calculated in the Design Report without considering terrain barrier or two-siren additive ef f ects are alco shown on the figuren and cummarized belows s
12
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- _ _ _ _ _ _ _A
FIGURE 3 COMPARATIVE OSPM RESULTS, HILLY TERRAIN (FS 1000 SIREN) 100;--
T~
i
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, I 90 t
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FIGURE 4 COMPARATIVE OSPM RESULTS, PARTIALLY lilLLY TERRAIN (FS 1000 SIREN) j 100 - - -- - - - -
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Distance From Siren In Feet
Siren Type 70 dBC (ft) 60 dBC (ft) PS 1000 5700 11,400 FS STH10 1890 3780 PS Model 2 690 1380 FS LCS - 740 These ranges are conservative over relatively flat terrains, with the conservatism being pronounced for the 70 dBC range estimates. In addition, the range estimates that include the barrier attenuation pro-cedure over partially hilly and hilly terrains ade-quately account for the site terrain characteristics. The results of the individual OSPM runs were combined to generate a comprehensive overview of the siren sound pressure levels over the Marseilles area. A logarithmic distance-weighted interpolation was performed on the output results of the three sirens to generate a grid of 44 by 44 dBC values over the entire map area. Each siren's dBC output was interpolated over this grid. The maximum dBC values at each grid point were then used to compute the siren sound pressure level contours as shown in Figure 2. These contours account for the site-specific topographical and meteorological ef f ects. Comparison of the OSPM predicted 70 dBC contours with the Design Report's 70 dBC contours indicates that the siren coverage (as discussed in the Design Report) in Marseilles is slightly more conservative than those coverages proj ected by OSPM. t 20
The design procedure results in a reasonable overall estimate of the system coverage, in that it: (1) utilizes the 10 dB loss per distance doubled esti-mate, (2) utilizes barrier attenuation corrections, and (3) does not take credit for the logarithmically additive effects of omni-directional sirens when com-puting 60 dBC sound pressure level contours. Thus, the La Salle Nuclear Power Station siren alerting system is found to meet the specific design requirements of FEMA-43.
- 2. Soecial Al erting (E. 6.2.4, FEMA-43 )
A method of special alerting, route alerting, is employed to alert persons within those geographical areas of the EPZ not covered by the siren system. The route alerting, therefore, is employed in the geographical area within a radius of 5 to 10 miles f rom the La Salle Nuclear Power Station. This method of special alerting involves emergency / law enforce-ment vehicles, equipped with public address systems, traversing predetermined mobile alert and notifi-cation routes. Activation of the route alerting system, as indicated in Figure 1, is the responsibility of local organiza-tions. The mobile alert and notification network is designed around the keyhole concept such that the mobile alert and notification routes are centered on and prioritiz ed by the appropriate three downwind sectors of the EPZ. In an accident situation, under the keyhole concept, the downwind sectors have 21
immediate priority of public alert and notification. The nearest emergency / law enf orcement vehicles that support these three sectors are assigned the priority routes within the three sectors by the La Salle County Sheriff's Dispatcher and/or the Grundy County Sherif f' s - Dispatcher. These existing special alerting resources are supplemented by mutual aid agreements currently on record with the appropriate state and local emergency response organization. As stated in Section 2.7 of the Design Report, all special alerting routes within the La Salle Nuclear Power Sta' tion EPZ can be completed within a 45-minute time span, in accordance with NUREG-0654/ FEMA-REP-1, Rev. 1.9 Institutional alerting is addressed in Section J of the La Salle County Plan and the Grundy County Plan, both of which are contained within the Illinois Plan for Radiological Accidents.3 These sections identify special concerns within the two counties and their communities. The following special concerns within each county are identified: schools, hospi-tals, nursing homes, subdivisions, recreational f acilities, industrial complexes, disabled and handi-capped citizens, and provisions for notifying the Illinois Commerce Commission in communities and areas that have railroad crossings. Specific responsibili-ties for notification and specific protective actions for these special concerns have been designated within the La Salle County Plan and the Grundy County Pl an. - 22
[ III. FINDINGS FOR EVALUATION CRITERION N.l' On December 4,1984, the physical means (sirens and route alerting) used to alert the population within the La Salle Nuclear Power Station EPZ were demonstrated to satisfy the alert and notification aspects of 44 CFR 350.9 (a) . This demonstration was conducted by using methods specified in Section N.l . (a, b) .2 of FEMA-43.10 The results indicate that this portion of the alert and notification system evaluation conf orms to FEMA-43 and NUREG-0654/ FEMA-REP-1, Rev. 1.9 The December 4,1984, demonstration of the La Salle Nuclear Power Station siren system consisted of a double activation of all sirens, a route alerting demonstration, and a subsequent telephone survey to estimate the proportion of EPZ households actually alerted. Siren activations were initiated at approximately 10:00 a.m. and 10 : 08 a. m. (Central Standard Time) . All sirens were reported operating during the activations. Route alerting began at 10:00 a.m.- (Central Standard Time) . The telephone survey of EPZ residences began at approxi-mately 10 :13 a.m. (Central Standard Time) and was completed within one hour and 2 minutes. This survey was conducted i by approximately 40 telephone interviewers, each with a separate WATS line and computer terminal. The universe of households to be surveyed was determined by establishing a 10-mile-radius circle around the latitude and longitude of the plant. The sample incorporated a sorted master list of approximately 2500 households (addresses and telephone numbers) within the established boundary. 23
~ - . . . .- - __
Replicated subsamples were developed f rom this master list. In order to properly account for route alerting, one replicated subsample of households was analyzed in greater detail than is usually required. The size of this subsample was calculated so that:
. It was sufficiently large to support interviewing -
efforts for as long as possible and to minimize any down time associated with the waiting period between interviewing households in siren coverage areas and the 45 minutes for completion of route alerting, so
- that interviews in route alerting areas could begin; and
. It was small enough in size to ensure that the total sample was representative of the EPZ (i.e., to ensure that a disproportionate number of interviews were not completed in siren coverage areas simply because interviewing could be started in these areas about 40 minutes earlier) .
All households in this systematically drawn subsample were screened by checking their addresses against street maps showing siren coverage areas and route alerting areas. The subsample was sorted into two groups: (1) households that were positively identified as being in siren coverage areas (and therefore could be contacted immediately af ter activa-tion) and (2) households that either were in route alerting areas or had uncertain geographic locations (such as post office boxes or rural route addresses) . In addition, all households in the entire sample that could be positively identified as being outside the EPZ were removed f rom the sample. I l 24
Immediately following the second siren activation, inter-views were begun with households in the subsample that had been definitely identified as being in the siren coverage area. Interviews were attempted with all of these house-holds until this group of the subsample was exhausted. Forty-five minutes af ter route alerting began, interviews started with the group of households in the subsample that were in route alerting areas or that could not be precisely located. Interviews were attempted with all of these house-holds until this group of the subsample was exhausted. As soon as this replicate subsample was exhausted, interviews were begun using the remaining replicate subsamples. A sufficient number of replicate subsamples were developed f rom the overall sample to ensure that the required number of telephone calls would be made, i.e., to establish the proportion of households alerted to within a 5% precision at a 95% confidence level. Appendix B of this report describes the method for sizing the sample to achieve this result. The questionnaire used for the telephone survey is included as Figure 9. As part of the telephone survey, a total of 302 households within the La Salle Nuclear Power Station EPZ were con-tacted and their responses were collected in an automated data base. Of this group, 71 respondents stated that they l were not alerted. Howev er, before running the final tabu-lations, addresses of all households interviewed were
- checked on a street map to validate their locations. Of the 302 addresses, 16 were outside the EPZ. Therefore, data were tabulated on the 286 respondent households located within the EPZ. Respondents at 13 of these '
i households had been away from home at the time of the l 25 t
FIGURE 9
#2316Q Chilten Research Services Study #8523 Radnsr, Pennsylvania. December 4, 1984 OMB #3067-0103 (FEMA 9/85)
FEMA NUCLEAR POWER PLANT ALERTING AND NOTIFICATION SYSTEM: PUBLIC TELEPHONE l SURVEY LA SALLE NUCLEAR POWER STATION Time Dialed AM PM Interview # (1-3)
- Time Bagan AM PM Zip Code (6-10)
Time Ended AM PM INTERVIEWER: Enter Sample Type (11) RECORD BEFORE DIALING - Telephone # (Area Code) (Exchange) (Number) (12-21) INTRODUCTION: H211o, my name is . We're calling households long distance frca Chilton Research Services as part of a survey. This survey is sponsored by The Fcdsrol Emergency Management Agency (FEMA) of the United States Government. Ycur answers are' voluntary and will be kept strictly confidential.
- 1. First of all, is this (REPEAT # DIALED)?
Yes 1 TERMINATE AND DIAL AGAIN No 2 t l 2. As you may or may not know, there was a test of the public warning / alert notification system for THE LA SALLE NUCLEAR POWER STATION. Did you, or any other member of this household, hear any type of emergency warning / alert signal from this test today? 22- ! CONTINUE Yes 1 , SKIP TO Q. 4A No 2 l - Heard from CONTINUE another 3 source l ASK IF ANY OTHER HOUSEHOLD Don t Know i 8 h MEMBER IS MORE KNOWLEDGEABLE 26 , r
FIGURE 9 (CONTINUED) What did.you or your household hear? (D0 NOT READ. CIRCLE ALL THAT APPLY) (23-29) Siren (PROBE FOR TYPE) Large pole-mounted 1 Police or Fire Vehicle 2 SKIP TO Don't Know 3 Neighbor told me 4
- 0. 4 Other family member told me 5 Other: (SPECIFY) O CONTINUE Don't Know Y
% Did you hear . . . (READ LIST. CIRCLE ALL THAT APPLY) (30-36) Large Pole-mounted siren 1 Police or Fire Vehicle Siren 2 From a neighbor 4 From another family member 5 Or by means of something else 6 (SPECIFY) DO NOT Siren - Don't know type 3 READ Dcn't Know Y
- b. (IF " HEARD EMERGENCY SIGNAL" ASK Q. 4 BELOW; OTHERWISE SKIP TO Q. 4A)
.Ware you at home or away from home when you were made aware of this emergency test signal?
37-Home 1 SKIP TO Q. 5 Away from home 2 27
FIGURE 9 (CONTINUED)
- 4A. (IF "DID NOT HEAR EMERGENCY SIGNAL")
Ware you at home around (TIME OF ALERT) today? 38-Yes 1 No 2 Don't Know Y
- 5. Hzs your household ever received instructions which tell you what to do in the event of a "real" emergency at La Salle Nuclear Power Station? This large booklet with white letters titled " Emergency Information" was mailed to you from Commonwealth Edison in October, 1984. Do you remember receiving this information?
39-Yes 1 No 2 Don't Know Y
- 6. Bscause we need to determine whether or not you live within the 10 mile Emergency
! Picnning Zone of La Salle, would you please give me this address? (PAUSE FOR ANSWER) ADDRESS: cnd the nearest intersection (or cross street) to this house. l l Also, what community is this? On behalf of Chilton Research Services and the Federal Emergency Management Agency, I would like to thank you for your time and for giving us this valuable information. 28
)
m - w eo---- y
alerting system demonstration and, therefore, were not included in the alerting analysis. Of the remaining 273 households, 82.0% (224) indicated that they had been alerted during the demonstration. Using the estimated number of households within the EPZ (4510 from reference 2) in the confidence interval expression in Appendix B, an estimated 95% confidence interval that ranges f rom 77.2% to 86.0% was yielded for the proportion of the total EPZ population alerted. In other words, at the 95% confidence l ev el, between 77.2% and 86.0% of the households within the La Salle Nuclear Power Station EPZ were alerted by the siren and route alerting systems. The sample of 286 households was also used to estimate the proportion of households within the EPZ that would have stated they received information about what to do in a real emergency at the La Salle Nuclear Power Station. Of these 286 households, 82.2% (235) responded that they had re-ceived the information, 16.8% (48) responded that they had not received the information, and 1.0% (3) did not know or ref used to state whether they had received the informa-tion. Using the approach discussed previously, the following estimates for the entire EPZ population resulted (at the 95% confidence interval) :
. Between 77.5% and 86.0% of the households would have reported receiving the information;
. Between 13.0% and 21.4% of the households would have responded that they had not received the information; and
. Between 0.4% and 2.9% of the households would not have known or refused to state whether they had received the information, i
29 5
In conclusion, no areas of the La Salle Nuclear Power Station siren or route alerting systems were identified as needing enhancements. i l I I l I 4 30 i
IV. FINDINGS FOR EVALUATION CRITERIA E.5, F.1, N.2, N. 3, AND N.5 Those aspects of the alert and notification system ad-dressing evaluation criteria E.5, F.1, N.2, N. 3, and N. 5 of NUREG-06 54/ FEMA-REP-1, Rev. 1, have been reviewed by FEMA and found to be adequate to provide reasonable assurance that appropriate protective measures can be taken off site in the event of a radiological emergency. This conclusion is documented in a letter to the Honorable James R. Thompson, Governor of Illinois, dated June 4,1982, signed by Lee M. Thomas, FEMA Associate Director, State and Local Programs and Support.8 In this letter, the La Salle Nuclear Power Station received FEMA approval under 44 CFR 350, conditioned on an ultimate approval and verification of the public alert and notification gystem as called for in NUREG-0654/ FEMA-REP-1, Rev. 1. l 31
l-i i i REFERENCE LIST
- 1. Nuclear News. 1984. "World list of nuclear power plants. " Vol. 27, No. 10. August 1984.
i
- 2. Illinois Emergency . Services and Disaster Agency and i
Commonwealth Edison Company. 1984. "An off-site emergency plan alert and notification addendum for the La Salle Nuclear Power Station. "- April 1984. Also: "La Salle i Nuclear Power Station Siren System Operational Reliability 1 Determination." FEMA Region V. August 13, 1984.
< 3. State of Illinois. 1982. "The Illinois plan for radiological accidents. " Volumes I and III. March 1982.
- 4. Federal Emergency Management Agency. 1980. " Post exercise evaluation, State of Illinois and Grundy and La Salle Counties exercise of the Illinois Plan for Radiological Accidents f or La Salle Nuclear Power Plant, December 4, 1980." (No date) .
- 5. Federal Emergency Management Agency. 1982. " Final report, La Salle Nuclear Power Station full-scale exercise, April 14-15, 1982." May 1982.
i 6. Federal Emergency Management Agency. 1983. " Exercise final report, La Salle Nuclear Power Station joint radiological emergency exercise, July 12, 1983."
- 7. Federal Emergency Management Agency. 1985. " Exercise report, La Salle Nuclear Power Station, joint exercise (partial participation) , October 10-11, 1984." Nov ember l 26, 1984, as revised' March 26, 1985.
- 8. Federal Emergency Management Agency. 1982. Letter to the Honorable James R. Thompson, Governor of Illinois, from Lee M. Thomas, Associate Director, State and Local Programs and
. Support. June 4,1982.
- 9. Nuclear Regulatory Commission and Federal Emergency Management Agency. 1980. " Criteria for preparation and
! evaluation of radiological emergency response plans and preparedness in support of nuclear power plants. " NUREG-06 54/ FEMA- REP-1. Revision 1. November 1980.
- 10. Federal Emergency Management Agency. 1983. " Standard guide for the evaluation of alert and notification rystems f or nuclear power plants. " FEMA-43. September 1983.
32
- 11. International Energy Associates Limited. 1983. "Analy sis of siren system pilot test. " IEAL-333. November 2,1983.
- 12. Beranek, Leo L., et al. 1971. " Noise and vibration control." McG raw-Hill, Inc. 1971.
I t l I ( 33
i 4 / \ r N ( APPENDIX A / \ OSPM Topographical Profile Charts OSPM Topographical Input Data OSPM Siren Sound Pressure Level Input Data OSPM Meteorological Input Data OSPM Siren Sound Pressure Level Output Data f l
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h I L COMMONWEALTH EDIS0N COMPANY I, LASALLE ANS SIREN 41 SOURCE-RECEIVER TCFCERAFHICAL INPUTS ALL EEARIhSS ARE WITH RESPECT TO THE NORTH MEASURING CLOCKWISE SRID SROUND FOLIAGE INTERVENIN6 DISTANCE TO HIGHEST HE!SHT OF POINT DISTANCE BEARING HEIGHT TYPE PENETRATION OBSTRUCTIONS OBSTRUCTION FROM SOURCE OBSTRUCTION 1 500. 90.00 700.00 SOFT 0. NO 0. O. 2 1000. 90.00 695.00 SOFT 0. NO 0. O. 3 2000, 90.00 690.00 SOFT 0. NO 0. O. 4 4000. 90.00 695.00 SOFT 0. NO 0. O. 5 6000. 90.00 682.00 SOFT 0. NO 0. O. 6 8000. 90.00 670.00 SOFT 0. YES 5900. 600. 7 12000, 90.00 710.00 SOFT 0. YES 11450. 715. 8 500. 45.00 690.00 SOFT 0. NO 0. O. 9 1000. 45.00 695.00 SOFT 0. NO 0. O. 10 2000. 45.00 680.00 SOFT 0. YES 7600. 700. 11 4000. 45.00 710.00 SOFT 0. NO 0. 0. 12 6000. 45.00 720.00 SOFT 0. NO 0. O.
; 13 8000. 45.00 685.00 SOFT 0. YES 10400. 730.
14 12000. 45.00 735.00 SOFT 0. NO 0. O. 15 500. 0.0 675.00 SOFT 0. NO 0. O. 16 1000. 0.0 680.00 SOFT 0. NO 0. O. 17 2000. 0.0 650.00 SOFT 0. NO 0. O. 18 4000. 0.0 680.00 SOFT 0. NO 0. O. 19 6000. 0.0 670.00 SOFT 0. YES 1950. 690. 20 8000. 0.0 610.00 SOFT 0. YES 6500. 720. 21 12000. 0.0 665.00 SOFT 0. YES 4950. 700. 22 500. 315.00 675.00 SOFT 0. NO 0. O. 23 1000. 315.00 655.00 SOFT 0. NO 0. O. 24 2000. 315.00 650.00 SOFT 0. NO 0. O. 25 4000. 315.00 620.00 50FT 0. NO 0. O. 26 6000.~ 315.00 655.00 SOFT 1. NO 0. O. 27 8000. 315.00 515.00 SOFT 0. YES 4950. 700. 23 12000, 315.00 570.00 SOFT 0. VES 4950. 700. 30 1000. 270.00 650.00 Sur 0. YES 6000. 655. 31 2000. 270.00 630.00 50F 0. NO 0. O. 32 4000. 270.00 580.00 SOFT 0. YES 6000. 655. 33 6000. 270.00 485.00 SCFT 0. YES 900. 670. 3500. 640. 34 8000. 270.00 459.00 SOFT 0. YES 35 12000., ,270.00 510.00 SOFT 0. NO 0. O. 36 500. 225.00 675.00 SOFT 0. NO 0. O. [. . l'
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l GRID SROUND FOLIAGE INTERVENINS DISTANCE TO HIGHEST HEIGHT OF FOINT_ DISTANCE BEARING HEISHT TYPE PENETRATION CBSTRUCTIONS OBSTRUCTION FROM SOURCE OBSTRUCTION 37 1000. 225.00 660.00 SOFT 0. NO 0. O. 38 2000. 225.00 630.00 50FT 0. YES 3500, 640. L 39 4000. 225.00 595.00 SOFT 0. NO 0. O. 40 6000. 225.00 485.00 SOFT 0. YES 3500. 640. i 41 8000. 225.00 490.00 HARD 0. NO 0. O. f 42 12000. 225.00 510.00 -SOFT 0. NO 0. O. l 43 500. 180.00 685.00 SOFT 0. NO 0. O. 44 1000. 180.00 680.00 SOFT 0. NO 0. O. 45 2000. 180.00 680.00 SOFT 0. NO 0. O. [ L 46 4000. 180.00 630.00 SOFT 0. YES 1800. 650. 47 6000. 180.00 520.00 SOFT 0. YES 4000. 595. 48 8000. 180.00 580.00 SOFT 0. YES 2900. 680. ) l 49 12000. 180.00 505.00 SOFT 0. YES 2900. 680. 50 500. .135.00 0.0 NO 0. 1800 0. O. l
. 51 1000. 135.00 0.0 NO 0. 670. O. O.
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!! 4000. 45.00 630.00 SOFT 0. YES 2500. 620.
12 6000. 45.00 663.00 SOFT 0. VES 2500. 620. 13 0000. 45.00 698.00 SOFT 0. VES 2500. 420. 14 12000, 45.00 648.C0 SOFT 0. VES 2500. 620. 15 500. 0.0 486.00 SOFT 0. NO 0. O. 16 1000. 0.0 495.00 SOFT 0. NO 0. O.
' 17 2000. 0.0 $13.00 SOFT 0. NO 0. O.
18 4000. 0.0 622.00 SCFT 0. YES 2900. 610. 19 6000. 0.0 650.00 SOFT 0. YES 2900. 610. 20 E000. 0.0 660.00 SOFT 0. VES 2900. 610.
- 0. 2900. 610, 21 12000. 0.0 647.00 SDFT YES 22 500. .315.00 485.00 SOFT 0. NO 0. O.
23 1000. 315.00 490.00 SOFT 0. NO 0. O. 24 2000. 315.00 490.00 SOFT 0. NO 0. O. 25 4000. 315.00 510.00 SOFT 0. NO 0. O. 26 6000. 315.00 600.00 SOFT 0. NO 0. O. 27 8000. 315.00 620.00 SOFT 0. NO 0. O. 29 12000, 315.00 620.00 SOFT 0. YES 8200. 620. 29 500, 270.00 480.00 SOFT 0. NO 0. O. 30 1000. 270.00 475.00 SOFT 0. NO 0. 0. 31 2000. 270.00 459.00 SOFT 0. NO 0. O. 32 4000. 270.00 480.00 SOFT 0. NO 0. O. 33 6000. 270.00 .480.00 SCFT 0. NO 0. O. {I 34 8000. 270.00 460.00 SOFT 0. VES 7300. 475. 35 12000. 270.00 470.00 SOFT 0. NO 0. O. 36 500. 225.00 460.00 SOFT 0. NO 0. O. 4 / ( (. .
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f l SROUND FOLIAGE INTERVENING DISTANCE TO HIGHEST HE!5HT OF GRID . TYPE PENETRATICN OBSTRUCTIONS DBSTRUCTION FROM SOURCE OBSTRUCTION POINT DISTANCE BEARING HEIGHT-l ' 37 1000. 225.00 459.00 HARD 0. NO 0. O. 38 2000. ~225.00 484.00 SOFT 0. -YES 1600. 500. 39 4000. 225.00 500.0.0 SOFT 0. ' NO 0. O. 40 6000. 225.00 515.00 SOFT 0. NO 0. O. 41 8000.. 225.00 670.00 SOFT 0. NO 0. O. 42 .12000. 225.00 660.00 SOFT 0. YES 8200. 670. 43 500. 180.00 459.00 SOFT 0. NO 0. O. l 44 1000. 180.00 459.00 HARD 0. NO 0. O. 45 2000. 160.00 490.00 SOFT 0. NO 0. O. 46 4000. 180.00 500.00 SOFT 0. NO 0. 6.
'47 .6000. 180.00 570.00 SOFT 0. NO 0. O.
48 9000. -180.00 590.00 SOFT 0. NO 0. O. 49 12000. 180.00 630.00 SOFT 0. YES 9500. 645. 50 500. 135.00 570.00 SOFT 0. NO 0. O. 51 1000. 135.00 459.00 SOFT 0. NO 0. O. 52 2000. 135.00 459.00 HARD 0. NO 0. 0, 53 4000.- !!5.00 484.00' SOFT 0. VES 3400. 500. 54 6000. 135.00 500.00 SOFT 0. . NO 0. O. 55 0000. !!5.00 510.00 SOFT 0. NO 0. O. 56 12000. 135.00 510.00 SOFT 0. NO 0. O. I 1 i 0 ( .- _ ------ --_- -------- - - - - - - - - - - -a
COMMONWEALTH EDISCN CCMPANY a LASALLE ANS SIREN 82 NOISE SCURCE F0WER LEVEL INPUT INDEI SOURCE DBA , DBC 31.5 63 125 150 500 1000 2000 4000 8000 (NZ) i~ t SIREN 2-STH10 151.'6 - 152.9 0.0 0.0 0.0 0.0 151.0 146.0 143.0 '140.0 138.0 1C= 0.0 YO= 0.0 Z0= 523.00 HEIGHT AE0VE GROUND = 40.00 COMMONWEALTH EDISCN COMPANY LASALLE ANS SIREN #2 METECR0 LOGICAL IhPUT CONDITIONS H1= 10.06 METERS H2= 100.58 METERS WIND WIND SPEED (MPS) TEMPERATURE (C) RELATIVE BAROMETRIC YEAR SEASON MONTH ~ DATE HOUR O!RECTION Hi H2 Hi H2 HUMIDITY PRESSURE (MM OF H6) 1983 - S 7 1 12 180.0 3.7 5.2 25.0 24.4 70.0 744.0 t I . (. [ t
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! 500. 90.00 495.00 SOFT 0. MO 0. O.
2 1000. 90.00 $10.00 SOFT 0. NO 0. 0. 3 2000. 90.00 512.00 SOFT 0. NO 0. o. 4 4000, 90.00 515.00 SOFT 0. NO 0. O. 5 6000. 90.00 550.00 SOFT 0. VES 5900. 575. 6 8000, 90.00 600.00 SOFT 0. YES 7850. 610. 7 12000. 90.00 608.00 SOFT 0. VES 7850. 610. 9 500. 45.00 498.00 SOFT 0. NO 0. O. 9 1000. 45.00 503.00 SOFT 0. 10 0. C. ( 10 2000. 45.00 530.00 SCFT 0. NO 0. 0, O. 0. 11 4000, 45.00 600.00 SOFT 0. NO 12 6000. 45.00 652.00 SOFT 0. NO 0. O. 13 8000. 45.00 678.00 SOFT 0. YES 7100. 680. 14 12000. 45.00 720.00 SOFT 0. YES 7100. 680. l 15 500. 0.0 500.00 SOFT 0. NO 0. 0. 0.0 500.00 0. 0. O. ( 16 1000. SOFT NO 17 2000. 0.0 590.00 SOFT 0. NO 0. O. 18 4000. 0.0 660.00 SOFT 0. YES 3800. 640. 19 6000. 0.0 660.00 SOFT 0. VES 3800, 640. r 9000. 0.0 650.00 0. YES !800. 440. ( 20 SOFT 21 12000. 0.0 710.00 SOFT 0. YES 3800. 640. 22 500. 315.00 493.00 SOFT 0. NO 0. O. 23 1000. 315.00 493.00 SOFT 0. NO 0. 0. 24 2000. 315.00 497.00 SOFT 0. NO 0. 0. 25 4000. 315.00 590.00 SOFT 0. NO 0. 0. 26 6000. 315.00 620.00 SOFT 0. VES 5700. 660. 27 0000. 315.00 590.00 SOFT 0. YES 5700. 660. 28 12000. 315.00 590.00 SOFT 0. VES 5700. 660. 29 500. 270.00 493.00 SOFT 0. NO 0. O. 30 1000. 270.00 493.00 SCFT 0. NO 0. O. 31 2000. 270.00 493.00 SOFT 4. NO 0. 0. 32 4000. 270.00 490.00 SOFT 0. NO 0. 0. 33 6000. 270.00 490.00 HARD 0. NO 0. O. 34 8000. 270.00 486.00 SOFT 0. YES 8000. 500. 35 12000. 270.00 495.00 SOFT 0. NO 0. O. 36 500. 225.00 493.00 SOFT 0. NO 0. O. F .- - - __
I l 6 RID GROUND FOL!A6E INTERVENIN6 DISTANCE TO HIGHEST HE!6HT OF PENETRATION OBSTRUCTIONS OBSTRUCTION FROM SOURCE OBSTRUCTION POINT O! STANCE BEARING HE!SHT TYPE 37' IMO. 225.00 484.00 SOFT 0. NO 0. O. 38 2000. 225.00 486.00 HARD 0. NO 0. O. 39- 4MO. 225.00 504.00 SOFT 0. NO 0. O. 40 6000. 225.00 515.00 SOFT 0. NO 0. O. 41 8000. 225.00 5:8.00 SOFT 0. YES 7700. 600. 42 12000. 225.00 675.00 SOFT 0. YES !!900. 675. 43 500. 180.00 493.00 SOFT 0. NO 0. O. 44 1000. 180.00 484.00 SOFT 0. NO 0. O. 45 2000. 180.00 484.00 SOFT 0. NO 0. 0. 46 4000. 180.00 504.00 SOFT 0. NO 0. O. 47 6000. 180.00 $15.00 SOFT 0. NO 0. O. 48 8000. 180.00 640.00 SOFT 0. YES 7000. 630. 49 12000, 180.00 662.00 SOFT 0. YES 9800. 690. 50 500. 135.00 490.00 SOFT 0. NO 0. O. 51 1000. 135.00 486,00 SOFT , 0. NO 0. O. 52 2000. 135.00 484.00 HARD 0. NO 0. O. 53 4000. !!5.00 484.00 HARD 0. NO 0. O. [ 54 6000. 135.00 490.00 SOFT 0. NO 0. O. 5 55 0000. 135.00 496.00 SOFT 0. NO 0. O. L 56 12000. 135.00 530.00 SOFT 0. NO 0. O. ( ( C .
l i i 6 COMONuERTH EDl!ON COMPANY LASRLE ANS SIREN 03 NOISE SU'JRCE PCNER LEVEL INPUT l l INDE1 SOURCE 084 DBC 31.5 63 125 250 500 1000 2000 4000 8000 (HZ) 1 SIREN 3-1000A 165.9 167.9 0.0 0.0 ' O.0 0.0 167.0 !!8.0 157.0 150.0 148.0 10= 0.0 Y0s 0.0 Z0= 543.00 HEIGHT ABOVE GROUND = 50.00 l C0m0 HEALTH EDISDN COMPANY LASALLE ANS SIREN 03 METEOROLOGICAL INPUT CONDITICNS H1= 10.06 METERS H2= 100.58 METERS N!ND WIND SPEED (MPS) TEMPERATURE (C) RELATIVEBAR0 METRIC YEAR SEASON MONTH DATE HOUR DIRECTION H1 H2 H1 H2 HUMIDITY FRESSURE(m 0F H6) 1993 S 7 1 12 100.0 3.7 5.2 25.0 24.4 70.0 744.0 l I h 3 1 L
( CCitMONhEALTH EDISDN CCMPANY
.LASALLE ANS SIREN 03 SIREN SOUND LEVELS IN DBC UNDER MET COND1 TION 1 DISTANCE IN FEET
{ AllMUTH $00. 1000. 2000, 4000. 6000. 8000. 12000. E 116.. 106. 98. 91. 73. 76. 71. NE !!6. 106. 98. 91. 88. 77. 70. N 116. 107. 98. 83. St. 75. 69. NW !16. 107. 98. 91. 72. 71. 65. W 116. 107. 98. 91. 69. 63. 77. SW !!6. 107. 102. 91. 82. 62. 72. S !!6. 107, 98. 91. 83. 79. 67. SE !!6. 107. 102. 94. 82. 75. 64. [. / ) 4 [
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l C2MM2NWEALTH EDIS2N CCf,PANf LASALLE ANS !!REN 06A SOURCE-RECEIVER TCPCSRAPHICAL INFUTS ALL EEARINSS AicE WITH RESPECT TO ThE NORTH PEASURINS CLOCrk!SE GRID GRDUND FOLIAEE INTER'iENINS DISTANCE TO HIGHEST HEIGHT OF ( F0!NT 0! STANCE EEARINS HE!SHT TYFE PENETRATION 0!STRUCT10NS OBSTRUCTION FROM SOURCE OSSTRUCTION 1 500. 90.00 730.00 SOFT 0. NO 0. O. 2 1000. 90.00 725.00 SOFT 0. NO 0. O. 3 2000. 90.00 725.00 SOFT 0. NO 0. O. 4 4000, 90.00 725.00 SOFT 0. NO 0. O. 5 6000. 90.00 712.00 SOFT 0. NO 0, 0,
- 0. 6 6 2000. 90.00 722.00 SOFT 0. NO 7 12000. 90.00 705.00 SOFT 0. YES 7300, 722.
B 500. 0.0 720.00 SOFT 0. NO 0. O. l 9 1000. 0.0 720.00 SOFT 0. NO 0. O. L 10 2000. 0.0 717.00 SOFT 0. NO 0. O. 11 4000, 0.0 700.00 SOFT 0. NO 0. O. r 12 6000. 0.0 685.00 SOFT 0. NO 0. O. 13 9000. 0.0 677.00 SOFT 0. YES 7200. 680. [ 14 12000. 0.0 692.00 SOFT 0. NO 0. O. 15 500, 270.00 718.00 SOFT 0. NO 0. O. 16 1000. 270.00 710.00 SOFT 0. NO 0. O. 17 2000. 270.00 695.00 SOFT 0. NO 0. O. 19 4000. 270.00 690.00 SOFT 0. ND 0. O. r 19 6000. 270.00 680.00 SOFT 0. NO 0. O. [ 20 E000. 270.00 662.00 SOFT 0. NO 0. O. 21 12000. 270.00 645.00 SOFT 0. NO 0. O.
- 22 500. 180.00 725.00 SOFT 0. NO 0. O.
l 23 1000. 190.00 725.00 SOFT 0. NO 0. O. 24 2000. 120.00 725.00 SOFT 0. NO 0. O. 25 4000. 120.00 705.00 SOFT 0. NO 0. O. 26 6000. 190.00 695.00 SOFT 0. NO 0. O. L 27 2000. 190.00 700.00 SOFT 0. NO 0. O. 28 12000. 180.00 677.00 SOFT 0. VES 9500. 710. I l [ L r
s f f CCMMONhEALTH EDISCN CCMPMY LASALLE ANS SIREN 96A NOISE SOURCE POWER LEVEL INPUT f-l DBA DBC 31.5 63 125 250 500 1000 2000 4000 8000 (NZ) INDEI SOURCE ,
& !!REN 64-10004 165.9 167.9 0.0 0.0 0.0 0.0 167.0 !!8.0 157.0 150.0 148.0 10s 0.0 YO= 0.0 Z0= 751.00 HEIGHT ABOVE GROUNDS 26.00 COMMONWEALTH EDISCN COMP M Y LASALLE ANS S!REN 06A l METEOROLC61 CAL INPUT CONDIT!CNS l
Hl= : 10.06 METERS- H2= 100.56 METERS WIND WIND SPEED (MPS) TEMPERATURE (C) RELATIVE SAR0 METRIC
) EAR SEASON MONTH DATE HOUR DIRECTION H! H2 Hi H2 HUMIDITY PRESSURE ( M OF H6) ! ~1993 5 7 1 12 190.0 3.7 5.2 25.0- 24.4 70.0 744.0 i
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i s' L COMMONNEALTHEDISONCOMPANY r LASALLE ANS S!REN 012 SOURCE-RECEIVER TOPOSRAPHICAL INFUTS [ ALL BEARINGS ARE WITH RESPECT TO THE NORTH MEASURING CLOCKNISE 6 RID GROUhD FDLIAGE INTERVENIN6 DISTANCE TO HIGHEST HEIGHT OF POINT DISTANCE BEARING HE!SHT TYPE PENETRATION CBSTRUCTIONS OBSTRUCTION FROM SOURCE DBSTRUCTION
! 500. 90.00 670.00 SOFT 0. NO 0. O.
2 1000. 90.00 670.00 SOFT 0. NO 0. O. 3 2000. 90.00 665.00 SOFT 0. NO 0. 0. 4 4000. 90.00 662.00 SOFT 0. NO 0, 0. 5 6000. 90.00 650.00 SOFT 0. NO 0. O. 6 -8000. 90.00 653.00 SOFT 0. NO 0. O. 7 12000. 90.00 650.00 SOFT 0. YES 10800. 655. 1 l . [ L- .
[ COMMONiEALTH EDISQN COMPANf LASALLE ANS SIREN 812 NO!SE SOURCE POWER LEVEL IkPUT INCEI SOURCE DBA Dic 31.5 63 125 250 500 1000 2000 4000 E000 (HI) 1 SIREN 12-LCS1 !!6.6 135.7 0.0 0.0 0.0 0.0 0.0 131.0 134.0 111.0 114.0 10= 0.0 YO= 0.0 Z0= 704.00 HEIGHT AiDVE GR00ND= 35.00 ( CCMMONWEALTH EDISCN COMPANY LASALLE ANS SIREN 812 METEOROLOGICAL INPUT CCNDITIONS H1= 10.06 METERS H2= 100.58 METERS f WIND WIND SPEED (MPS) TEMPERATURE (C) RELATIVE EAR 0 METRIC HUMIDITY rRESSURE(MM 0F H6) YEAR SEASON MONTH DATE HOUR DIRECTION H1 H2 H1 H2 1983 $ 7 1 12 180.0 3.7 5.2 25.0 24.4 70.0 744.0 t . [ [ f -- -
s f L COMCNWEALTH EDISON COMPANY LASALLE AMS SIREN 812 SIREN SOUND LEVEL 3 IN DBC UNDER MET CONDITION 1 DISTANCE IN FEET A!!MUTH 500. 1000. 2000. 4000. 6000. 8000. 12000. E 82. 74. 62. 46. 35. 29. 21. 1 ( . ( [ f._ - - - _
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4 r 6 Y CCMOhWEALTH EDIECN CCMPANY LASALLE ANS SIREN 013 SOURCE-RECEIVER TCP0 GRAPHICAL INPUTS [ ALL EEARINGS ARE WITH RESFECT TO THE NORTH MEASURING CLOCKWISE l GRID GROUND FOLIAGE INTERVENING DISTANCE TO HISHEST HEIGHT OF r l F0!NT DISTANCE BEARINS HE!EHT TYFE PENETRATION OBSTRUCTIONS OBSTRUCTION FROM SOURCE 05STRUCTION 1 500. 90.00 500.00 SOFT 0. NO 0. O. 2 1000. 90.00 500.00 SCFT 0. NO 0. O. 3 2000. 90.00 505.00 SCFT 0. NO 0. O. 4 4000. 90.00 510.00 SOFT 0. NO 0. O. 5 6000, 90.00 510.00 SCFT 0. NO 0. O. 6 8000. 90.00 500.00 SOFT 0. YES 7900. 510. 7 12000. 90.00 580.00 SOFT 0. NO 0. O. 8 500. 0.0 500.00 SOFT 0. NO 0. O. 9 1000. 0.0 495.00 SOFT 0. NO 0. O. 10 2000. 0.0 515.00 SOFT 0. NO 0. O. 11 4000, 0.0 630.00 SOFT 0. YES 4000. 630. 12 6000. 0.0 640.00 SOFT 0. YES 4000. 630, 13 8000. 0.0 640.00 SOFT 0. VES 4000, 6:0. 14 12000. 0.0 650.00 SOFT 0. YES 7000. 530. 15 500. 270.00 500.00 SOFT 0. NO 0. O. 16 1000. 270.00 500.00 SOFT 0, NO 0. O. 17 2000. 270.00 500.00 SOFT 0. NO 0, 0. 18 4000. 270.00 505.00 SOFT 0. NO 0. O. 19 6000. 270.00 515.00 SOFT 0. NO 0. O. 20 8000. 270.00 $25.00 SOFT 0. YES 7000, 5:0, 21 12000. 270.00 484.00 HARD 0. YES 4900. 500. 22 500. 180.00 510.00 SOFT 0. NO 0. O. 23 1000. 180.00 505.00 SOFT 0. NO 0. 0. 24 2000. 180.00 505.00 SOFT 0. NO 0. O. 25 4000. 180.00 505.00 SOFT 0. NO 0. O. r 26 6000. 180.00 484.00 SOFT 0. YES 9600. 600. [ 27 8000. 180.00 530.00 SOFT 0. NO 0. 0. 28 12000. 180.00 6:5.00 SOFT 0. YES 9600. 600. [ f ( -
CCMMONWEALTH EDISON COMPANY LASALLE ANS SIREN 813 NOISE SOURCE POWER LEVEL INPUT IN;EI SCURCE DBA , DEC 31.5 63 125 250 500 1000 2000 4000 8000 (HZ) 1 SIREN 13-STH10 151.6 152.9 0.0 0.0 0.0 0.0 151.0 146.0 143.0 140.0 !!2.0 XC= 0.0 YO= 0.0 10= 545.00 HEIGHT ABOVE GROUND = 45.00 COMMONWEALTH EDISDN COMPANY LASALLE ANS SIREN 013 METEOROLOGICAL INPUT CONDITIONS H1= 10.06 METEFS H2= 100.58 METERS WIND WIND SPEED (MPS) TEMPERATURE (C) RELATIVE PAR 0 METRIC YEAR SEASON MONTH DATE HOUR DIRECTION H1 H2 H1 H2 HUMIDITY PRES 5URE(MM 0F HG) 1983 S 7 1 12 180.0 3.7 5.2 25.0 24.4 70.0 744.0 r
r-- P k CCP.MCNhEALTH EDISCN CCMPANY LASALLE ANS SIREN 013 SIREN SCLND LEVELS IN EEC UNDER P.ET CCNDITICN 1 r l DISTAhCE IN FEET AZIMUTH 500. 1000. 2000. 4000. 6000. 9000. 12000. E 100. 91. 82. 74 70. 59. 61. N 100. 92. 82. 69. 64. 60. 50. W 100. 91. 82. 74. 70. 63. 55. S 100. 91. 82. 74. 40. 67. 55. 4
APPENDIX B Sample Size Determination
APPENDIX B SAMPLE SIZE DETERMINATION The number of households that need to be surveyed is determined based upon the need to obtain a sample size sufficient to obtain a 95% confidence interval with precision (half-width) of 0.05 for the estimate of the porportion alerted. The exact number of households to be surveyed can be derived from the following statistical considerations. For relatively large sample sizes (n 2 30), taken without replacement from a population (N) , the sampling distribution for proportions (e.g., the proportion of the population alerted) is nearly a normal distribution, the mean of which is the proportion (p) of the population alerted and the variance of which is
~"
p(1 - p)/n , If P is the observed sample proportion, then for a particular confidence level with confidence coefficient Zet (P - p) $Z p(1 - p)/n [ Thus, for this confidence level, the actual proportion of the population alerted satisfies the following inequalities: 2 I 2 I N-n c p , 2n (N - lj P (1 - P) N-n , c N-n\ c n (N - if ' 2 N - if S p ad c N-n n N-1 1
p 2n c N-n\ P(1 - P) N-n\ c N-n\ PS N - if c n (N-1/ 2 N - 1/ 2 c N-n n N-1 Thus, the precision (W) is simply given by Z P(1 - P) n [N-n c N-n w- (N - 1/ 4n \
~
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2 E c I N-n I n (N - lj This equation can be solved to determine the sample size (n) required to yield a given precision (W) with a given observed sample proportion (P) as follows:
,, 2 2
P(1 - P) - 2W + W l - 4P(1 - P) +P (1 - P) 2w . n- .,
,~
~
l+ 2 P(1 - P) - 2W l+ 2
+ W l - 4P(1 - P) +P (1 - P) 2w 3 Z j Although this expression for n can be used directly, it is customary to make several approximations. First, since the term in N in the denominator (the finite population term) is positive definite for all reasonable values of W (0 < W < 0.5), omitting this term will result in an approximation to n that is slightly i
larger than its true value. This is an acceptable practice in sizing the sample since a larger sample gives greater precision. 2
A second approximation that can be made is to neglect the terms l in W2 within the bracket in the numerator. Analysis demonstrates that this underestimates n when P < 1/2 - 1/4 M 2 + 8W2 l or P > 1/2 + 1/4 Y2+8W2 and overestimates n for P between those two values. For the case of interest (a 95% confidence interval with precision of 0.05), this approximation provides an overestimation of n when a sample size greater than 191 is required. Since the sampling plan calls for a minimum sample size of 250, regardless of the value of P, this approximation is acceptable because it also yields an estimate of n larger than the true value. Therefore, for the purposes of the pilot test i and subsequent surveys, the following approximate equation can be used to determine whether a sample size larger than 250 is required: I 2 3 n= P (1 - P) or using 1.96 for Z e and 0.05 for W, n = 1536.64 P(1 - P) Data from the pilot test can be used to illustrate the effects of these approximations. In the pilot test, the population of tone alert households f rom which the sample was to be drawn (N) was approximately 4500 and the observed proportion alerted (P) was 0.675. This yields 311 as the exact result for n. Neglecting the finite population term yields an estimate of 334 , for n, and the simplified final approximation estimates n as 338. Thus, the final simplified approximation overestimates the required sample size by 27 in this case. SOURCE: International Energy Associates Limited. " Analysis of Tone Alert Pilot Test." IEAL-321. September 27, 1983. 3 _ _ _ _ _ . _ _ _ _ _}}