ML20196E909
| ML20196E909 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 02/26/1988 |
| From: | George Thomas PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| CON-#288-5997 NYN-88025, OL-1, NUDOCS 8803010403 | |
| Download: ML20196E909 (16) | |
Text
{{#Wiki_filter:George S. Thomas Vk:e Presiderd Nucleor Production Pub 5c SeMee of New Hampshire February 26, 1988 New Hampshire Yankee Division NYN-88025 United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk
References:
(a) Facility Operating License NPF-56, Construction Pe rmi t CPPR-136, Docket Nos. 50-443 and 50-444 (b) PSNH Letter (NYN-87113), dated September 18, 1987, "Seabrook Plan for Massachusetts Communities", G. S. Thomas to USNRC (c) USNRC Letter, dated February 5,1988, "Timely Support for the Review of the Seabrook Plan for Massachusetts Communities", S. A. Varga to R.J. Harrison (d) PSNH Letter (NYN-88017), dated February 12, 1988, "Seabrook Plan for Massachusetts Communities (SPMC); Request for Additional Information", G. S. Thomas to U3NRC (e) PSNH Letter (NYN-88020), dated February 16, 1988, "Seabrook Plan for Massachusetts Communities (SPMC); Plan Updates", G. S. Thomas to USNRC (f) PSNH Letter (NYN-88023), dated February 20, 1988, "Seabrook Plan for Massachusets Communities (SPMC); Amendment No. 2", G. S. Thomas to USNRC
Subject:
Scabrook Plan for Massachusetts Communities (SPMC); Request for Additional Information Gentlemen: On September 18, 1987, New Hampshire Yankee (NHY) submitted for NRC and FEMA review, a comprehensive utility plan for that portion of the Emergency Planning Zone (EPZ) within the Commonwealth of Massachusetts [ Reference (b)). The Seabrook Plan for the Massachusetts Communities (SPMC) was developed to compensate for the lack of participation of the Commonwealth of Massachusetts and the six (6) municipalities within the Massachusetts portion of the EPZ. The Alert & Notification System described in the SPMC was based on a fixed pole siren system installed throughout the six communities. Since then, through a series of legal actions taken by these communities, the sirens and their associated $lf[ noles have been removed from the Massachusetts EPZ Communities. A 8803010403 880226 s PDR ADOCK 05000443 f fr PDR I P.U. tsox 300. beabrook, NH 03874. Telephone (603) 474 9574 ff i 1
United States Nuclear _ Regulatory Commission NYN-88025 Attention:. Document Control Desk Page 2 NRC informed-NHY on February 5, 1988 [ Reference (c)] that a des-cription of the Alert and Notification System was part of the information needed to maintain the review schedule of the SPMC. In a response to that letter (Reference.(d)], NHY committed to provide that description by February 22, 1988. Subsequent conversations with the NRC Staff extended this deadline to February 26, 1988. Accordingly please find as an enclosure to this letter, a description of an alternative system developed by NHY which we believe will meet the requirements of 10CFR 50.47 and Appendix E to 10 CFR 50 and be consistent with the guidance contained in FEMA-REP-10 and NUREG-0654/ FEMA-REP-1. The system consists of truckbased sirens that can be dispatched f rom continuously manned staging areas (designated as the Vehicular Alert and - Notification System (VANS)], combined with fixed siren tone coverage from sirens located in New Hampshire near the Massachusetts border. This system will be backed up by a Airborne Alerting System which essentially consists of an acoustical package carried by a helicopter based at Seabrook Station. As indicated in Reference (d), NHY will submit a revised FEMA-REP-10 design report prior to the upcoming graded exercise. The enclosure in conjunction with previous information submitted in Reference (d), (e), and (f) comprises a full response'to the Reference (c) request for information. Should you have any questions regarding this response, please contact our Bethesda Licensing Office (Mr. R. E. Sweeney) at (301) 656-6100. In accordance with'the NRC Staff's direction, one copy of the enclosed document has been sent to the SPMC FEMA /RAC Chairman. Ve ry ' t ruly yours, ft" George S. Thomas )
>Unitsd States Nuclear,Rsgulatory Corcission NYN-88025 . Attsntions Decument Control De2k Paga 3 ( j Enclosures cc: Atomic Safety and Licensing. Board Service-List-
- Mr. Steven A'. Varga, Director Division of Reactor Projects I/II.
Office lof Nuclear Reactor Regulation
- United States Nuclear Regulatory Commission
-: Washington, DC 20555 Mr. Victor Nerses, Project Manager - Project Director I-3 ' Division of Reactor Projects United Nuclear Regulatory Commission. Washington, DCc 20555 Mr. Richard Donovan. -Federal Emergency Management Agency ' Region ~10 130 228th Street, S. W. Bothell, Washington 98021-9796 Mr. William T. Russell Regional Administrator United States Nuclear Regulatory Commission Region I 425 Allendale Road. King of Prussia, PA 19406 Mr. Antone C. Cerne NRC Senior Resident Inspector Seabrook Station Seabrook, NH 03874
ENCLOSURE to NYN-88025 ~
1.0 INTRODUCTION
The Seabrook Station plume -exposure pathway EPZ includes six communities within the Commonwealth of Massachusetts. The communities constitute a land area of approximately 36 percent of the total acreage in the entire EPZ. The closest borders of 'the communities of Amesbury and Salisbury f all within a 5 mile radius of the station. The com3 unities of Merrimac, Newbury, West Newbury and the City of Newburyport f all within a 10 mile radius of the station (Reference 4).. The principxl highways in the Massachusetts portion of the EPZ are Interstates 495 and 'i 95, US Routes 1 and 1A and State Routes 110, 150 and 113. Spec!, al facilities include public schools, private schools, two hospitals, long-term care facilities, a kidney dialysis facility for walk-in patients, senior citizen housing, day care centers / nurseries, a boarding facility for mentally retarded adults and a state reservation for summer camping (Reference 4). This document provides an overview of the Alert and Notification System within the above Massachusetts portion of the Seabrook Station plume exposure pathway Emergency Planning Zone (EPZ). The design utilizes proven technology and maintains a configuration and operation similar to a fixed pole / siren system. The concept of operations is consistent with the present Seabrook Plan for the Massachusetts Communities (SPMC) concept of operations for notifying the public. 2.0 DESIGN OVERyl[W i The system has been designed to meet the requirements of 10CFR50.47 and 10CFR50 Appendix E (Reference 2). The design is consistent with the guidance contained in FEHA-REP-10 (Reference 1) and NUREG-0654/ FEMA REP-1, Revision 1 (Reference 3). '
n-- m i ENCLOSURE TO NYN-88025 ~ The Alert' and Notification' System. consists of the following' subsystems: 1. A. Vehicular Alert and Notification SystemL(VANS)' -functioning as fixed sirens; ~ 2. Fixed siren' tone coverage from sirens located in New Hampshire near the Massachusetts border; and 3. A he,*.icopter mounted siren system (secondary backup to VANS), 2.1 VANS The Vehicular Alert and Notification System (VANS) has two components: 1. A notification package consisting of a lifting device and a Whelen WS-3000 model siren which functions as a fixed siren when lifted into place; and 2. A vehicle capable of delivering the notification package to a predetermined location. Approximately twenty-two (22) locations have been identified through the use of acoustical analysis techniques, where the VANS will provide tone or voice coverage for essentially 100 percent of the population in the Massachusetts plume exposure pathway EPZ in the event of an emergency (see Figure 1). Vehicles will be dispatched from at least three continuously manned, local staging areas and sent to the pre-selected locations to allow activation of the sirens (tone or voice). The design of the VANS will include an analysis to demonstrate that the system can reliably: 1. Be dispatched from the staging areas; 2. Be moved to their preselected locations; and ENCLOSURE TO NYN-88025 3. Place the notification packages in an operable status and complete one 3-minute activation, all within "about 15 minutes" (Reference 1). Routes from the staging areas to each location will be pre-planned and will be provided for each vehicle. Each route will be tested for timing and evaluated for VANS use. The route transit time for any single vehicle, combined with the setup and activation time, will not exceed 15 minutes. A prototype vehicle with its notification package is tentatively scheduled to be tested by April 30, 1988. These evaluations and tests will provide the basis to assure that the system is capable of performing its function of public alert and notification within "about 15 minutes". Once the VANS vehicles are operable at their preselected locations, siren operation and actuation is equivalent to a fixed pole / siren system. Each of the final VANS locations will be analyzed to assure the recommended sound level coverage (Reference 1) is provided for the population density of the area and local topographical conditions (e.g., siren sound pressure levels must be equal to or exceed 70 dBC in areas where the population exceeds 2,000 people per square mile, and levels must be equal to or exceed 60 dBC or must generally exceed the average measured summer daytime ambient sound pressure levels by 10 dB in areas where the population is less than 2,000 people per square mile). Communication with the vehicle drivers at the staging areas will normally be accomplished via base radios. Backup communications will be via telephones at the VANS staging Each vehicle will be equipped with a radio to allow two-way area. communications with the NHY EOC. The VANS drivers will be trained in vehicle operation, siren operation, vehicle routes and the Seabrook Station emergency plan. c-ENCLOSURE TO NYN-88025 2.1.2 Vehicle and Notification Package The vehicle is a ' dual rear wheeled truck (Ford F-350 4 x 2 or Equivalent) having a gross vehicle weight rating of '11,000 lbs and's payload capacity of 6,630 lbs. This veh'icle will be equipped with' power steering, power brakes, automatic transmission, heavy. duty sus-pension, a hydraulic scissors lif t mechanism and out-riggers / stabilizers -(for additional stability). This vehicle will be capable of being driven over unpaved compacted gravel roadways.. The hydraulic scissors lif t mechanism will have a rated pay-load capacity of 1,500 lbs. The height of the hydraulic scissors lift mechanism will be approximately 5.5 feet above ground in its lowered position (see Figure 2). The lifting device is capable of lifting the base of the siren 40 feet from the ground which places the centerline of the siren approximately 45 feet above the ground. 2.1.2 Siren The siren utilized-is a Whelen Model WS-3000 siren which is capable of functioning either as a siren or as a public address device. In the public-address mode, voice messages received over radio are amplified and broadcast over the siren speakers. In the siren mode, the output of a tone-generator is amplified and broadcast over the siren speakers. This tone is common to all of the New Hampshire fixed sirens and Massachuser.cs VANS sirens. The tone can be a steady tone or a high pitched warbling tone. The steady tone has been reserved as the alerting sound to be used in the event of an emergency at the Seabrook Station. e-ENCLOSURE TO NYN-88025 The WS-3000 is ameng the most powerful electronic siren systems. commercially available. Tests have shown that~the Alert Signal gener-ated by the WS-3000 can produce a level of.123 dBC at a distance of 100 ft from the siren. Each WS-3000 siren is composed of a loudspeaker assembly and an electrical cabinet housing the power amplifiers, tone generator, radio receiving unit, decoder and control circuitry, and power supply. 10te speaker section of each WS-3000 siren consists of a vertically arranged array of sixteen individual loudspeaker-drivers acoustically coupled to a-single large horn. The horn has an ef fective dispersion angle of 60' in the horizontal plane (that is, the signal broadcast by the siren is no less than 3 dB lower than its rated "on axis" performance within 30' to the left and right of the speaker axis; outside of this 60' angle, sound is radiated by the siren speakers at a lower level). The horn, speaker-drivers, and a motor-driven rotator are mounted atop the scissors lift. The loudspeaker-drivers are fed by eight power amplifiers, each of which feeds two drivers. Input to the power amplifiers comes either from the tone-generator or the radio receiver, depending on which mode of siren operation is being used. The redundancy of amplifiers and drivers enhancca eiten reliability. Power o operate each siren is provided by 12-volt batteries located in the electrical cabinet. The batteries are trickle-charged i to maintain a full charge. The entire WS-3000 siren design is modular. The power ampli-fiers, tone generator, radio receiver and decoder, and batteries, as l 1 t
ENCLOSURE TO NYN-88025 well as the individual loudspeaker drivers, are housed in easily replaceable modules to facilitate maintenance of the siren. To ensure full 360* coverage by the siren, the speaker assembly is slowly oscillated back and forth through an angle of 360'. The horn rotates 180' in one direction, stops, rotates back around to the same position, stops, and then rotates 180' in the other direction. This cycle is repeated 2-4 times per ninute. This causes the sound "beam" from the speaker-driver / horn combination to periodically sweep over the surrounding area in much the same manner as the light from a lighthouse. To ensure intelligibility of a voice message when the sirens are used in the public-address mode, the horns are held stationary while the message is broadcast. The horns are then rotated 45*, held stationary again, and the message is rebroadcast. Thus, the message is repeated eight times as the horns are swept through 360'. Because of the overlap in coverage resulting from the horn's ability to disperse sound over an angle greater than 45*, at any given location the message broadcast will likely be heard more than once. This will increase the intelligibility of the message. 2.1.3 VANS Activation Whenever an Alert or higher emergency classification has been declared, NHY will activate the VANS. All vehicles will then be dis-patched to their preselected locations. Each vehicle and driver leaves the respective staging area and drives over the predetermined route to the location. Alternate routes, when applicable, will be preplanned to avoid traffic congestion. ENCLOSURE TO NYN-88025 o once the _ vehicle arrives at. the location,- the driver places the notification package in an operable position by. parking the vehicle, positioning the outriggers and raising the siren. The siren is now available'for remote activation when the decision is.made to notify the public. If the siren fails to sound after being remotely activated, the driver can ' manually activate the tone. If a VANS vehicle fails to reach the preselected location, the NHY EOC will dispatch reserve VANS vehicles to assure notification. The helicopter alert system (see Section 2.3) may also be used for secondary alerting and notification as conditions and procedures permit. 2.1.4 Surveillance and Maintenance Surveillance and maintenance of the truck lift mechanisms and sirens will be conducted at least once per month at or near Seabrook Station. When a vehicle is removed f rom its staging area for maintenance, it will be replaced with another VANS vehicle. Thus, a f ull complement of vehicles will always be maintained in the staging areas. The survelliance and maintenance program will include full operation of the lif t mechanism and silent testing of the siren components. If a lift or siren pack f ails to meet surveillance requirements, the notification package will be repaired or replaced and the vehicle returned to service. 2.2 Fixed Siren Tone Coverage Some areas of the Massachusetts emergency planning rone receive acoustical coverage from existing fixed sirens located in the state of New Hampshire. The acoustical design concept of the VANS method described above is to provide coverage of the area beyond the acoustical coverage of those sirens located in New Hampshire. -7
p-ENCLOSURE TO NYN-88025 2.3 Airborne Alerting System An Airborne Alerting System will be established as a backup system to the VANS. The Airborne Alerting System will ' consist of an acoustical equipment package carried by a helicopter based at Seabrook Station. The acoustical package, which will be used for alerting, is manu-f actured by Applied Electro Mechanics, Inc., and is capable of both public address and siren tone modes. The system features amplifiers, power supplies, and speaker systems mounted on the helicopter. The acoustical package consists of two speaker-arrays. The primary array will be mounted on the lef t-aide of the helicopter and consists of 28 speakers. The secondary array will be located beneath the helicopter between the landing skids and consists of 8 speakers. The speaker arrays will be driven by a 4,000 watt amplifier system, powered by nickel-cadmium batteries. The primary speaker array has been flight-tested to verify the extent of acoustical coverage on the ground which meets the required levels of 60 dBC and 70 dBC. The acoustical tests were designed, conducted and analyzed by acoustical experts from Wyle Laboratories. Subsequent tests will define the acoustical coverage for both the primary and secondary speaker arrays. The expected ground coverage of the combined arrays, for the 60 dBC level, should extend approximately 6,000 fee *, f rom the left-side of the helicopter to 1,000 feet to the right. These test results will be used to define the operating specifications necessary to develop flight path procedures for the helicopter. _
}lf ~ f .ENCLSOURE TO NYN-88025 e The. helicopter f acility will be located at Seabrook Station ~ between the north and south access roads. This facility will consist of J a heliport office, helipad and adjoining runway, and helicopter hangar.- The helicopter and pilot will be maintained in a constant state of readi-The helicopter will be preflighted and inspected daily by the ness. pilot. Preventive maintenance procedures will be performed onsite period-ically by a licensed mechanic. Communications required for the helicopter alerting system will consist of telephone lines between the NHY EOC and the heliport office plus a VHF radio system for communications between the NHY EOC and the helicopter pilot once the helicopter is airborne. NHY has contracted with a local vendor to provide the helicopter and pilots to provide 24 hour-per-day, 7-day-per-week coverage. The duty pilot will be based at Seabrook Station at the helicopter facility. Periodic Seabrook Station emergency plan training for the pilots will be conducted by New Hampshire Yankee. 2.3.1 Helicopter Alerting System Activation The activation sequence for the helicopter alerting system will be that whenever an Alert (or higher) Emergency Classification Level is declared at Seabrook Station, the helicopter pilot will be notified. The helicopter pilot will then launch when needed as a backup to the VANS and will communicate with the NHY E0C to coordinate activation of the helicopter alerting message / tone, timing, and areas. -9 m
~ ENCLOSURE TO NYN-88025, LIST OF REFERENCES 1. "Guide for the Evaluation of Alert and Notification Systems for Nuclear Power Plants"; FEMA REP-10/ November 10, 1985; Federal Emergency Management Agency; Washington, D.C. ; November,1985. 2. "Code of Federal Regulations, Title 10, Chapter 1, Part 50, Appendix E"; Office of the Federal Register; Washington,'D.C.; January, 1987. 3. "Criteria for the Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness in Support of Nuclear Power Plants"; NUREG-0654/ FEMA REP-1, Revision 1; U.S. Nuclear Nuclear Regulatory Commission / Federal Emergency Management Agency; Washington, D.C.; November, 1980. 4. "Seabrook Plan for Massachusetts Communities"; New Hampshire Yankee; September, 1987. ENCLOSURE TO NYN-88025 FIGURE 1 PRELIMINARY ACOUSTICAL ANALYSIS ....., j ['<g Ck)P 4i)je,q , n!-z.,c;,i...f % ~ 4 h i I [ . w -m. aw. a e b,~ 'b?)=E55;;., f a 4 ~, ~,,,,) .s ~ts:. ,q j p a ' '$ I g n \\, }{I Y *. 7', h' /{l }g D \\ ,# '8 g ~ 4 - j Mj il s s (((a i1 e 's "s),(
- )g
,/ y y-(J,,*' N> \\, x s e l ~4,C 3. A. ...- ! I
- }
W. y. sggp.x x s a f,a t i I 1 \\ '- 3: f 'mYv (7 og[. $y[13p S $.. p e .v g% jd. e ~
- "" ~
i')"' ;'. g.. s ,y j,l l '-; ' //.____..- I e o o g- ...\\,...@ =kPstgy{g de .~ w r.. ~~.. ,.. t-{"r' -.,W 3... "dds",, o d A T t. A i OCEgy &,.g i s.s. : 1 h4 a l s C 8
i Sheet 1 of 2 ENCLOSURE to NYN-68021 g. Figure No. 2 CCNFIGUPATION SIDENG PIATEDRM AND SIPEN IN LOhERED POSITION i j .I 1 ? 4 b ~ i SIPS (PAYIDAD) l i l HYDRAULIC SCISSORS ~- A 1 x LIrr Ma m NISs ~ q (AERIAL DEVICE) =: O = i. TRUCK D (ValICLE) M si s Y Y k %l I [ 8 ~ o I I kl o //g um //,qni;pr-4~ /N ww is-7,,
t Sheet 2 of 2 ENCLOSURE to NYN-88025 e Figure No. 2 COtiTIGUPATION SHGiING PIATFOPM AND SIBIN IN ELEVATED POSITION c I B -? I ( 'IDAD) ~ D 9 g o j t \\ l i HYDBALTLIC SCISSORS LIFT F M NISM \\ (AERIAL DEVICE) 4i = D ( r 4 i g l I \\ l 0 I j s l /. (VEHICLE) m. 9 O O ,,,,,,,,j i -mm<~ iin w w, _ _ _ -. - -.- -. - _.. -,. -. -. --}}