ML20076J268

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Emergency Response Facilities Design Rept
ML20076J268
Person / Time
Site: Clinton Constellation icon.png
Issue date: 06/16/1983
From:
ILLINOIS POWER CO.
To:
Shared Package
ML20076J262 List:
References
RTR-NUREG-0737, RTR-NUREG-737 U-0643, U-643, NUDOCS 8306200414
Download: ML20076J268 (38)
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Text

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EMERGENCY RESPONSE FACILITIES DESIGN REPORT 4

Illinois Power Company Clinton Power Station, Unit #1 j June 1983 Enclosure of Letter U-0643 Date: June 16, 1983 8306200414 830616 PDR ADOCK 05000461 F pg

EMERGENCY RESPONSE FACILITIES DESIGN REPORT INDEX I. Introduction II. Emergency P.esponse Facilities A. Technical Support Center

1. Purpose i 2. Staffing
3. Location, Structure and Size
a. Location
b. Structure
c. Arrangement and Size
4. Radiation Protection
a. Shielding
b. HVAC
c. Local Radiation Monitoring
5. Electrical Power
6. Communications
a. Emergency Notification System (ENS)
b. Federal Telecommunications System (FTS)
c. Emergency Automatic Ringdown (EAR)

Telephones

d. Unrestricted Telephones
e. Radios
f. Nuclear Accident Reporting System (NARS)
3. NRC Office Telephones
h. Facsimile Transmission
7. Instrumentation / Data Display
a. Parameters
b. Display Systems
8. Records Availability and Management B. Operations Support Center t
1. Purpose
2. ' Staffing
3. Location, Structure and Size
a. Location
b. Structure
c. Arrangement and Size
4. Radiation Protection
5. Communications i

, i C. Emergency Operations Facility

. 1. Purpose 2.

Staffing

3. Location, Structure and Size
a. Location
b. Structure
c. Arrangement and Size
4. Radiation Protection
a. Shielding
b. HVAC.
c. Local Radiation Monitoring
5. Electrical Power
6. Communications
a. Emergency Notification System (ENS)
b. Federal Telecommunications System (FTS)

-c. Emergency Automatic Ringdown (EAR)

Telephones

d. Unrestricted Telephones
e. Radios
f. Nuclear Accident Reporting System (NARS) j
g. NRC Office Telephones 4
h. Facsimile Transmission
7. Instrumentation / Data Display  ;

, a. Parameters '

b. Display Systems i 8. Records Availability and Management i l 9. Security D. Backup Emergency Operations Facility
1. Purpose
2. Location, Structure and Size
3. Electrical Power-

, 4. Communications

a. Emergency Notification System (ENS)
b. Dispatch Circuits
c. Unrestricted Telephones
d. Radios
5. Data Display / Technical Data-
6. Records Availability -

III. References IV. List of Acronyms 11 i-

. _ .~. _ , _ _ _ . . . _ . . . _ _ _ . . . . . . . . _ ._ _

1 Figures Page Figure 1 General Floor Plan for the 4 Operations Support Center and Technical Support Center Figure 2 Technical Support Center 7 Figure 3 Operations Support Center 17 Figure 4 Emergency Operations Facility 22 Figure 5 Backup Emergency Operations 31 Facility I

111

EMERGENCY RESPONSE FACILITIES DESIGN REPORT

1. INTRODUCTION The purpose of this report is to present the conceptual design of the Illinois Fower Comaany emergency response facilities. These facilities (the Technical Support Center, Operations Support Center, Emergency Operations Facility and Backup Emergency Operations Facility) are in different stages of design and construction. This report summarizes the present progress and intentions to meet the requirements of Supplement I to NUREG-0737, " Requirements for Emergency Response Capability," dealing with the emergency response facilities.

II. EMERGENCY RESPONSE FACILITIES (ERF)

The purpose of the Emergency Response Facilities is to provide facilities from which emergency response personnel can assist in the mitigation of the consequences of accidents and respond to abnormal operating conditions.

During emergencies, the Emergency Response Facilities shall provide the following functions:

a. Assist the reactor operator in determining the plant safety status,
b. Relieve the reactor operator of peripheral duties and communications not directly related to reactor system manipulations,
c. Prevent congestion in the control room,
d. Provide assistance to the operators from technical personnel who have access to comprehensive plant data,
e. Provide a coordinated emergency response by both technical and management personnel.
f. Provide reliable communications between onsite and offsite emergency personnel.
g. Provide a focal point for development of recommendations for offsite actions.
h. Provide relevant plant data to the NRC for its analysis of abnormal plant operating conditions.

1

l A. Technical Support Center (TSC) '

l. Purpose The purpose of the Technical Support Center is to provide the following:
a. A centralized and dedicated work area for management and technical support to plant operations personnel during emergency conditions.
b. Relief to the Control Room Operatorc of peripheral duties and communications not directly related to reactor systems manipulations,
c. An area for designated support personnel to assemble in order to prevent congestion in the Main Control Room.
d. EOF functions for the Alert Emergency classification and initial EOF functions for Site Emergency and General Emergency classifications until the EOF is functional.
e. The primary onsite communication center for the plant during an emergency.

The TSC is the emergency operations work area for the Emergency Coordinator, designated technical, engineering and senior licensee management personnel. The NRC Consultacion Room is available for a small staff of NRC personnel. The Emergency Coordinator and his staff use the resources of the TSC to provide guidance and technical assistance to the Control Room Supervisor. The TSC has the facilities to support the plant management and technical personnel assigned there during an emergency.

2

TSC personnel can analyze the plant steady-state and transient conditions during the course of an accident using the information available from the TSC data systems. The results of this analysis will be used to provide technical advice to the control room operating personnel in the handling of abnormal conditions and accident mitigation.

TSC personnel will also use the environmental and radiological information available from the TSC data systems to perform offsite dose assessment calculations and the necessary functions of the EOF if that facility is not operational (NUREG-0737 Supplement 1, Section 8.2.1.as NUREG-0696, Section 2.1).

2. Staffing The Technical Support Center will be staffed within one hour of the declaration of an Alert, a Site Emergency or a General Emergency. The TSC will be staffed by a minimum of fourteen Illinois Power Company (IP) employees. Working space has been allocated for five NRC personnel (NUREG-0737 Supplement 1, Section 8.2.1.j ) .
3. Location, Structure and Size
a. Location The TSC is located on the 800' elevation of the Control Building, adjacent to the Unit 1 Main Control Room (MCE) The location of the TSC relative to the MCR and Operations i Support Center (OSC) is shown in Figure 1.

j' (NUREG-0737 Supplement 1, Section 8.2.1.b; j NUREG-0696, Section 2.2).

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v. FACILITIE S North 800' Elev. Control Bldg. GENERAL FLOOR PLAN for OSC & TSC
b. Structure Although not a requirement, the TSC structure is seismic Category I. The TSC is supported by a 23 inch thick reinforced concrete slab and reinforced concrete beams and columns. '

The TSC walls are masonry hollow concrete block with block wall column supports. All of the rooms in the TSC have an acoustical tile ceiling below the 17 inch thick ,'

reinforced concrete structural slab and a 6 inch reinforced concrete floor slab at the 825' elevation. The 825' elevation slab is supported by structural steel columns and beams. All columns and beams are coated with fireproof material. The TSC meets the samn structural requirements as the MCR to withstand earthquakes, high winds and floods (NUREG-0737 Supplement 1, Section 8.2.1.d; NUREG-0696 Section 2.5).

c. Arrangement and Size Adjoining the TSC is the NRC Consultation Room aad the Results Records Room (see Figure 2). These rooms support the TSC function and are included in the total floor space for the TSC. The combined area of the three rooms is approximately 1529 square feet. With a staffing of 19 people there is greater than-75 square feet per person. A description of each room is as follows:
1. Technical Support Center (TSC)

The TSC is approximately 1,038 square feet. This is the primary work area for plant management and technical support personnel when the EOF is '

activated. The facilities include communications, the Performance ,

Monitoring System / Display Control System (PMS/DCS) process computer -'

system (Nuclenet) cathode ray tube '

(CRT) displays, offsite dose calculation capability, facsimile data transmission capability to the EOF and the NRC Operations Center in Bethesda, _

Maryland, status boards, plant records and procedures.

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4. Radiation Protection
a. Shielding The Technical-Support Center is shielded by the same walls that shield the Main Control Room. This design meets the requirements of the General Design Criteria 19 of 10CFR50, Appendix A. (NUREG-0737 Supplement 1, Section 8.2.1.f; NUREG-0696, Section 2.6).
b. HVAC The Technical Support Center is within the Main Control Room HVAC System boundary. The Main Control Room HVAC System is a safety grade system and is designed and constructed for highly reliable operation under emergency conditions (NUREG-0737 Supplement 1, Section 8.2.1.e; NUREG-0696, Section 2.6).

During a high radiation condition the HVAC System automatically shifts to the High Radiation Mode of operation. In this mode the normal outside air intake is isolated and room cooling is provided by recirculated air.

This recirculated air passes through a medium efficiency particulate air filter.

Pressurization of the Technical Support Center (and Main Control Room) to avoid radioactive air in-leakage is achieved by two independent, safety related outside air su7 ply trains. Each train subjects the male-up air to high efficiency particulate filtration and charcoal absorption (NUREG-0737 Supplement 1, Section 8.2.1.f; NUREG-0696 Section 2.6).

8

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c. Local Radiation Monitoring Two safety grade radiation monitors at each of the normal make-up air HVAC intake structures detect gamma radiation from 10-2

, to 10" mR/hr. These monitors will

  • automatically initiate the High Radiation Mode of the Main Control Room HVAC system and provide an alarm in the Main Control Room (MCR) when the setpoint is reached. These monitors also provide four 10-2 to 10" mR/hr displays in the Main Control Room. This information is available in the TSC from the Plant Radiation Monitoring System (RMS).

Radiation levels in'the TSC will be monitored by the local radiation monitoring equipment in the MCR. A non-safety grade area radiation monitor (ARM) in the Main Control Room detects ionizing radiation. The Main i

Control-Room ARM readings are indicative of the TSC radiation levels because of their 7roximity and common HVAC and shielding soundary. This monitor will provide input to a computer display in the TSC. (NUREG-0737 Supplement 1, Section 8.2.1.f).

5. Electrical Power The power supply to TSC lighting and receptacles is from a class 1E source. The power supplies to the lighting and receptacles for the:Results Records Room and the NRC Consultation Room are j from non-safety power sources.

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6. Communications The TSC has reliable communications with the MCR and EOF. Reliable voice communications exist with the OSC, NRC Operations Center, state and local operations centers.
a. Emergency Notification System (ENS)

An automatic ringdown ENS hotline telephone circuit connects the TSC with the NRC Operations Center in Bethesda, Maryland, and the NRC Region III Office in Chicago. The ENS circuit has extensions in the NRC Consultation Room and the TSC. ENS extensions are located in the MCR, Shift Supervisor's office, the Resident NRC Inspector's office, the EOF and BEOF. The unrestricted commercial telephone network provides a backup to the ENS. (All references to the NRC Operations Center refer to the Bethesda, Maryland, office.)

b. Federal Telecommunications System (FTS)

This system is replacing the Health Physics Network (HPN). One FTS dial dedicated circuit is installed in the NRC Consultation

, Room. The TSC will have an FTS extension.

FTS extensions are located in the EOF, the Resident NRC Inspector's office and the Health Physics office. This circuit links the TSC with the NRC Operations Center and i

the NRC Region III Office in Chicago. The unrestricted telephone network provides a backup to the FTS.

c. Emergency Automatic Ringdown (EAR)

An EAR circuit connects the TSC to the:

1. Main Control Room
11. Operations Support Center iii. Emergency Operations Facility An unrestricted onsite telephone is the backup means of communications.

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d. Unrestricted Telephones

.For access to onsite and offsite locations, unrestricted extensions of the CPS Private Board Exchange (PBX) and extensions of the IP Decatur PBX will be available.

e. Radios Two' radio base station remote control consoles are located in the TSC. The i

. Emergency Remote Control Console (ERCC) is

, used to communicate with mobile monitoring teams. The Operations Remote Control Console (ORCC) is used to communicate with operations personnel.

f. Nuclear Accident Reporting System (NARS)

A dial dedicated NARS telephone circuit to be installed by the Illinois Emergency Services and Disaster Agency (ESDA) connects the ESDA

' Springfield office, local emergency offices
and other agencies with the:TSC. NARS extensions are also located in the MCR and EOF.

l.

, g. NRC Office Telephones Telephones designated "For NRC Personnel Only" in the NRC Consultation Room and.in the TSC are unrestricted extensions ~-through the CPS PBX and the IP.Decatur PBX telephone circuits.

h. Facsimile Transmission A facsimile circuit (telecopier) provides graphic information transmission between the TSC and EOF, and between the TSC and the NRC Operations Center.

.(NUREG-0737 Supplement 1, Section 8.2.1.g.)

1, 4

11

7. Instrumentation / Data Display
a. Parameters The Technical Support Center will have displays formats of:
1. Selected parameters from Table 1 of Regulatory Guide 1.97 (Rev. 2)

(including meteorological and radiological parameters).

ii. Nuclear Steam Supply System (NSSS) and Balance of Plant (BOP) parameters, iii. Safety Parameter Display System (SPDS).

iv. Radiological and meteorological data used in offsite dose calculations.

Additional information will be available by telephone communications for:

1. The results of analysis from the plant chemistry laboratories.
11. Backup weather reports from the National Weather Service, if needed.

iii. Miscellaneous plant data from the Main Control Room.

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b. Display Systems The primary means of data display in the TSC will be through plant computer systems. The computer systems are:
1. The Performance Monitoring System / Display Control System (PMS/DCS) plant process computer system (CPS-FSAR sections 7.1.2.1.13 and 7.7.1.21).
11. The Plant Radiation Monitoring System.

iii. Offsite Dose Calculation / Spectral Analysis System.

The PMS/DCS plant process computer is used to assist MCR personnel for plant operations. A

'PMS/DCS terminal in the TSC will allow personnel to view any of the display formats available in the PMS/DCS computer. These display formats include the following:

i. Selected Regulatory Guide 1.97 (Rev. 2) parameters.

ii. Safety Parameter Display Formats.

Radiological and meteorological data will be available from the Radiation Monitoring System on a CRT in the TSC. A CRT terminal will be located in the TSC to display offsite dose calculations.

(NUREG-0737 Supplement 1, Section 8.2.1.h).

f i 1 13 L

8. Records Availability and Management Up-to-date plant records will be maintained in the TSC. These records include the following:

CPS Technical Specifications CPS Operating and Emergency Procedures CPS Final Safety. Analysis Report (FSAR)

CPS Emergency Plan State Emergency Plan DeWitt County Emergency Plan Offsite Population Distribution Selected Plant Drawings The Results Records Room will be used to store plant data that will be used during the normal shift routine (NUREG-0737 Supplement 1, Section

, 8.2.1.1).

B. Operations Support Center (OSC)

1. Purpose The purpose of the Operations Support Center is to provide the following:
a. A location where plant logistic support can be coordinated during an emergency.
b. A location, separate from the TSC and MCR, where maintenance, operations, radiation protection, and other_ technical support personnel can assemble to support the Technical Support Center and Main Control Room during an emergency,
c. Restricted Main Control Room access to those support personnel specifically requested by the shift supervisor.

(NUREG-0737 Supplement 1, Section 8.3.1.a; NUREG-0696, Section 3.1).

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2. Staffing The Operations Support Center will be activated and staffed in a timely manner for an Alert, Site Emergency, or General Emergency. A total of about 24 supervisory and technical personnel will man tba OSC (NUREG-0737 Supplement 1, Section 8.3.1.a; NUREG-0696 Section 3.1).
3. Location, Structure and Size
a. Location The OSC is located on the 800' elevation on the Control Building. The location relative to the MCR is shown in Figure 1. (NUREG-0737 Supplement 1, Section 8.3.1.b.)
b. Structure Although not a requirement, the OSC has the same structural classification as the TSC.
c. Arrangement and Size The OSC is made up of several rooms with a total floor space of 690 square feet. The amount of floor space per person is approximately 29 square feet. The floor plan is shown in Figure 3.

(NUREG-0696, Section 3.2.)

4. Radiation Protection The OSC is within the same shielding and HVAC boundaries as-the TSC and MCR (NUREG-0696, Section 3.2).

15

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5. Communications The-following is a list of the communications available in the OSC:
a. One Emergency Automatic Ringdown (EAR) circuit connects the OSC to the TSC, and another circuit connects the OSC to the MCR.
b. An unrestricted phone extension of the CPS PBX will be available in the OSC for access to onsite and offsite locations (NUREG-0703 Supplement 1, Section 8.3.1.c; NUREG-0696, Section 3.3).

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C. Emergency Operations Facility (EOF)

1. Purpose The purpose of the Emergency Operations Facility is to provide facilities for the following:
a. Management of overall Illinois Power Company emergency response activities, including the management of recovery operations.
b. Assessment of the effects of actual or potential radioactive releases during an emergency.
c. Determination of recommended public protective actions in an emergency.
d. Coordination of Illinois Power Company emergency response activities with those of Federal, State, and Local agencies (NUREG-0737 Supplement 1, Section 8.4.1.a; NUREG-0696, Section 4.1).
2. Staffing The EOF will be staffed and functional within one hour of the declaration of an Alert, a Site Emergency, or a General Emergency. The staffing is a minimum of 27 Illinois Power Company employees, nine NRC representatives, and one Federal Emergency Management Agency (FEMA) representative for a total of 37 personnel.

(NUREG-0737 Supplement 1, Sections 8.4.1.a and '

8.4.1.i; NUREG-0696, Section 4.3).

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3. Location, Structure, and Size
a. Location The EOF is located outside of the Clinton Power Station security fence approximately 1500 feet east of the Main Control Room and Technical Support Center. It is about a fifteen minute walk from the EOF to the TSC.

The EOF is about six miles from the community of Clinton where the headquarters for local authorities such as DeWitt County Emergency Services and Disaster Agency (ESDA) and Sheriffs' Office are located. The city of Decatur, which is the headquarters for Illinois Power Company management and the Nuclear Station Engineering staff, is about 20 miles from this facility, approximately a 35 minute drive. The EOF is less than one mile south of the Illinois Route 54. Travel t.'.me on highway 54 between Clinton and the ECF is approximately 10 minutes (NUREG-0737 Supplement 1, Section 8.4.1.b and Table 1:

NUREG-0696, Section 4.2 and Table 2).

b. Structure The Emergency Operations Facility is located inside of a prefabricated metal building.

The perimeter walls of the EOF are eight inch thick solid concrete block and the ceiling is eight inch thick reinforced concrete. The EOF is built in accordance with the Uniform Building Code. The EOF is protected from floodin of 739'g-6"because it ismaximum while the at the probable station grade flood level (or 100 year flood) is elevation 708.9', The building that houses the EOF was manufactured by Butler and is a 200' x 200' rigid steel frame structure with metal siding on a concrete foundation. The building is designed to withstand a 20 psf wind load which is equivalent to an 85 mph wind loading. The 100 year wind at the site is 80 mph (NUREG-0703 Supplement 1, Section 8.4.1.d and Table 1; NUREG-0696, Section 4.2 and Table 2).

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4 The building has been designed in accordance with:

1. Metal Building Manufacturers Association (MBMA) Recommended Guide Specifications for Pre-Engineered Metal Buildings.
11. MBMA Recommended Design Practice
j. Manual.

! iii. MBMA Code of Standard Practice, iv. American Institute of Steel Construction (AISC) Manual of Steel Construction.

v. American Iron and Steel Institute

! (AISI) Light Gauge Cold-Formed j Steel Design Manual.

c. Arrangement and Size The preliminary layout of the EOF is shown in Figure 4. The arrangement of the equipment in these rooms will 4 incorporate human factors reviews
j. (NUREG-0737 Supplement 1, Section 8.4.1.k) and the experience of conducting drills. A description of j each room is as follows:
1. Personnel Holding Area The main entrance lobby is used to monitor personnel for radioactive contamination prior to entering the EOF. When the EOF is activated, access to and from the Personnel Holding Area is j controlled by a guard at the main entrance door.

i 20

4 ii . Security Office The security office at the main entrance door is staffed when the EOF is activated. Building security and fire protection systems are monitored from this office. A lead glass window with a protection factor of 5 allows the guards to view the entry vestibule. An intercom allows for two way voice communication between the security office and vestibule.

21

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i E EMERGENCY OPERATING

"*M E,'llr".e.1 FACILITY - -2 FLOOR PLAN A s s'i' le i I e s l I4 I a 6 6 Il

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r 111. Personnel Monitoring and Decontamination Room Contaminated persons are directed to enter the Personnel Monitoring and Decontamination Room by a Radiation Protection technician in the Personnel Holding Area.

Showers and sinks are available to decontaminated personnel. The showers drain to a holding tank sized for use by 100 people.

Contaminated clothing is stored and clean clothing provided to personnel after being decontaminated, iv. Radiation Protection Storage Radiation monitoring equipment, emergency kits, field monitoring instruments, decontamination supplies and clothing are stored in this 130 square foot room.

v. Radiation Protection Office This office is used by Radiation Protection and Chemistry Supervisors to provide administrative support for personnel monitoring, decontamination activities and laboratory analysis, u

23

vi. Document Room The Document Room adjacent to the EOF Decision Making area, provides controlled copies of up-to-date copies of selected plant drawings, plant procedures, emergency plans and procedures, Technical Specifications, Final Safety Analysis Report, and technica?

manuals. This room is approximately 560 square feet, vii. NRC Office A private office is provided for NRC personnel. The room is approximately 250 square feet.

viii. Recovery Manager's Office This office is dedicated for the IPC corporate officer acting as the Recovery Manager. This room is approximately 180 square feet.

ix. EOF Conference Room The conference room is available

'for use by any of the various i organizations or agencies, but is primarily used by the Recovery Organization. This room is i approximately 280 square feet.

x. Offsite Dose Calculation Room This room provides 180 square feet of working space for offsite dose assessment calculations.

24

xi. EOF Decision Making Area This area is 1770 square feet. It provides for the following:

Assessment of offsite radiological releases displayed on maps of the Emergency Planning Zones and field radiological data status boards.

Assessment of the emergency, showing the major events that have occurred on displays and status boards.

Acquisition of the nuclear plant systems data. This will be provided by PMS/DCS plant process computer displays.

The total EOF area working space (Offsite Dose Calculation Room, Conference Room, Recovery Manager's Office, NRC Office, Document Room and Decision Making Area) is about 3200 square feet. For the 27 Illinois Power Company employees, nine NRC representatives, and the FEMA representative there will be over 85 sq. ft of working space per person (NUREG-0737 Supplement 1, Section 8.4.1.c; NUREG-0696, Section 4.4.).

4. Radiation Protection
a. Shielding The Emergency Operations Facility is shielded by eight inch thick solid concrete block walls and an eight inch thick reinforced concrete ceiling. The shielding is capable of attenuating 0.7 MeV gamma rays by at least a factor of five. The EOF Security Office window is leaded glass with a shielding factor of at least five (NUREG-0737 Supplement 1, Section 3.4.1.b and Table 1; NUREG-0696, Sections 4.2, 4.5 and Table 2).

25

b. HVAC The EOF HVAC System provides protection from airborne ~ particulate radiation. The High Radiation Mode of the HVAC system is manually actuated. In this mode the normal outside air intake is throttled'and air passes through high efficiency particulate air (HEPA) filter (no charcoal). This make-up air maintains positive pressure inside the EOF. Room cooling and dehumidification is accomplished by recirculating air. All the rooms listed in section 3.c.are in the HVAC boundary except the Personnel Holding Area.

(NUREG-0737 Supplement 1, Sections 8.4.1.b &

8.4.1.e; NUREG-0696, Sections 4.2 and Table 2).

c. Local Radiation Monitoring There are portable area radiation monitors available for the EOF work area to detect gamma radiation. In addition, a constant air monitor (CAM) samples air from the return air ducting to determine airborne radioiodine concentrations to as low as 10-7 pci/cc. The CAM may be a portable unit with connections to allow hookup with existing sample connections. The radiation monitors will will provide high radiation alarms to alert EOF personnel to initiate the High Radiation Mode of the EOF HVAC System (NUREG-0737' Supplement 1, Section 8.4.1.b; NUREG-0696, Section 4.5).
5. Electrical Power Electrical power is supplied to the EOF from a 138 kv transmission line via the Construction Substation and 12 kv Construction Loop (the power source for onsite construction facilities). The reliability of the EOF power supply is estimated to-be in excess of 99%.

1 26

6. Communications
a. Emergency Notification System (ENS)

An ENS hotline telephone circuit connects the EOF with the NRC Operations Center in Bethesda, Maryland and the NRC Region III Office in Chicago. One extension is located in the EOF Decision Making Area and the other in the EOF NRC Office. This circuit is not wired through the local switchboard and is dedicated through telephone central offices to the NRC. The unrestricted commercial telephone network provides a back up to the ENS.

b. Federal Telecommunications System (FTS)

One FTS dial dedicated telephone circuit connects the EOF with the NRC Operations Center and the NRC Region III Office. One extension is located in the EOF Decision Making Area and the other in the EOF NRC Office. This circuit is not wired through the local switchboard and is dedicated through telephone central offices to the NRC.

The unrestricted commercial telephone network provides a backup to the FTS.

c. Emergency Automatic Ringdown (EAR) Telephone An EAR circuit is installed connecting the EOF with the TSC. A second EAR circuit exists between the EOF and the Main Control Room. An unrestricted onsite telephone is the backup means of communication.
d. Unrestricted Telephones For-access to onsite and offsite locations from the EOF, single line phones are installed as unrestricted off-premise extensions of IP's Decatur Private Board Exchange (PBX) and the CPS PBX.

27 1

e. Radios Three radio-base station remote control-consoles are located in the EOF. The ERCC is used to communicate with mobile monitoring

, teams. The ORCC is used to communicate with operations personnel, and the Maintenance Remote Control Console (MRCC) is used to communicate with maintenance personnel.

f. Nuclear Accident Reporting System (NARS)
Provisions exist for communications to State 1

and local Emergency Services and Disaster Agency (ESDA) centers from the EOF. A NARS circuit connects the EOF with Illinois ESDA, DeWitt County ESDA, and other governmental agencies as required by ESDA.

g. NRC Office Telephones Additional EOF telephones (designated for NRC personnel use only) include:
1. Two single line instruments with lines routed via remote, commercial central i

offices.

i h. Facsimile Transmission Facsimile transmission is provided between the EOF, TSC, and the NRC Operations Center.

(NUREG-0737 Supplement 1, Section 8.4.1.f; NUREG-0696, Section 4.6.) '

7. Instrumentation / Data Display
a. Parameters The Emergency Operations Facility will have the capability to display the same displays available in the TSC. See section A.7.a

" Instrumentation / Data Display" for the TSC.

1 I

i 28

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b. Display Systems These systems are described in Section A.7.b,

" Instrumentation / Data Displays" for the TSC.

Data communications to all of the EOF' data system peripheral devices from the plant systems will be via a fiber optic i.

I communications link.

(NUREG-0737 Supplement 1, Section 8.4.1.g; NUREG-0696, Section 4.7 and 4.8).

8. Records Availability and Management Up-to-date plant records are maintained in the EOF. These records include:

CPS Technical Specifications CPS Operating and Emergency Procedures CPS Final Safety Analysis Report CPS Emergency Plan State. Emergency Plan DeWitt County Emergency Plan Offsite Population Distribution-Selected Plant Drawings '

(NUREG-0737 Supplement 1, Section 8.4.1.h; NUREG-0696, Section 4.9.)

2

9. Security

! The. EOF security is designed to industrial security. standards. During normal operating conditions EOF security is maintained by controlled key access lists. Only designated personnel are issued a key'to the EOF spaces. All i doors have hard-key locks. After the EOF is activated, a guard is stationed in the EOF Security Office to restrict access to the EOF to those people specifically assigned there (NUREG-0737 Supplement 1, Section 8.4.1.j ;

NUREG-0696, Section 4.1).

29

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D. Backup Emergency Operations Facility

1. Functional Purpose The Backup Emergency Operations Facility (BEOF) performs the functions of the Emergency Operations Facility in the event that the EOF is not available. These functions are as follows:
a. Coordinate off-site radiological and environmental assessment.
b. Develop recommendations for public protective actions.
c. Coordinate emergency response with governmental emergency response organizations in the event of an Alert, a Site Emergency, or a General Emergency.

(NUREG-0737 Supplement 1, Table 1; NUREG-0696, Table 2.)

2. Location, Structure and Size The BEOF is located on the first floor of a portion of Illinois Power Company's Electric and Gas Dispatch Center. The dispatch center is located on the north side of Decatur southwest of the intersection of U.S. Highway 51 and Illinois Routes 121 and 48. This location places the BEOF 21.7 miles from the Main Control Room and Technical Support Center, approximately a 35 minute drive.

The BEOF occupies a 1000 square feet room on the first floor of the dispatch center. This room contains the equipment for communications necessary to support the BEOF decision-making functions. Over 1400 square feet of additional space on the first floor can be quickly utilized for more work area. A plan of the first floor of the older portion of the dispatch center indicating the BEOF room is shown on Figure 5.

30 i

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OPERATIONS FACILITY p

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Sale 1"= 10" EMERGENCY RESPONSE FACILITES

/ OLD PORTION OF NORTH ILLINOIS POW E R's BACKUP EMERGENCY DISPATCH CENTER OPERATIONS' FACILITY 31

Since the BEOF is located 21.7 miles form CPS, no radiation protection or radiation monitoring is necessary. The dis 7atch center is not located near any major creeks , streams , or rivers and, therefore, is not subject to flooding.

(NUREG-0737 Supplement.1, Table la NUREG-0696, Table 2).

. 3. Electrical Power The BOEF lighting, communications, and equipment will have a backup power supply from a diesel-generator that is used to provide backup power to the dispatch center.

4. Communications
a. Emergency Notification System (ENS)

An ENS hotline telephone circuit connects the BEOF with the NRC Operations Center in Bethesda, Maryland and the NRC Region III Office in Chicago. This circuit will not be I

wired through the local switchboard and will -

be dedicated through telephone central

, offices to the NRC. Unrestricted commercial telephones will provide backup communications.

b. Dispatch Circuits Since the BEOF is located adjacent to the Electric and Gas Dispatch Center, the Illinois Power Company microwave dispatch circuits will be available. These circuits provide communications with the Main Control Room, Technical Support Center, and the Shift Supervisor's Office (adjoining the MCR-see Figure 1). Company owned and operated radio and unrestricted commercial telephone circuits provide backup communications.

l 32

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v

c. Unrestricted Telephones Communication to CPS and non-CPS locations from the BEOF can be conducted'with unrestricted commercial telephones Microwave. interoffice lines are also available connecting the BEOF to CPS as well as utility owned remote switchboards from which outside lines are manually available.
d. Radio A radio base station remote control console will be installed in the BEOF to communicate with mobile monitoring teams as well as other remote base stations in the utility system.
5. Data Display / Technical Data Technical data will be provided by telephone communication from the MCR or TSC. Offsite dose assessment calculations will be performed using calculational procedures based on the Class A Diffusion Model.
6. Records Availability The BEOF will contain records similar to those described in section C.B.

III. REFERENCES A. 10 CFR 50.47' " Emergency Plans."

B. NUREG-0660, "NRC Action Plan Developed as a Result of the TMI-2 Accident," May 1, 1980.

. -C. NUREG-0654, " Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness

'in Support ~of Nuclear Power Plants," January 1980.

D. NUREG-0696, " Functional Criteria for Emergency Response Facilities," May 1, 1980.

E. NUREG-0737, " Clarification-of TMI Action Plan

-Requirements," February 1981.

F. NUREG-0814, " Methodology for Evaluation of Emergency Response Facilities," August 1981.

33 L

o..o G. NUREG-0818, " Emergency Action Levels for Light Water Reactors," October 1981 H. Regulatory Guide 1.97 (Revision 2) " Instrumentation for Light-Water Cooled Nuclear Power Plants to Assess Plant and Environs Conditions During and Following an Accident," December 1980.

I. Supplement 1 to NUREG-0737 " Requirements for Emergency Response Capability," (Generic Letter No.82-33),

December 17, 1982.

J. Clinton Power Station, Final Safety Analysis Report.

K. NUREG-0853 Supplement No. 1 " Safety Evaluation Report,"

Clinton Power Station Unit 1, July 1982.

IV LIST OF ACRONYMS

-ARM Area Radiation Monitor BEOF Backup Emergency Operations Facility CAM Constant Air Monitor CPS Clinton Power Station CRT Cathode Ray Tube DCS Display Control System EAR Emergency Automatic Ringdown ENS Emergency Notification System EOF Energency Operations Facility ESDA Emergency Services and Disaster Agency FEMA Federal Emergency Management Agency FTS Federal Telecommunications System GeLi Germainium-Lithium isotopic analysis equipment HPN Health Physics Network IP Illinois Power Company MCR Main Control Room NARS Nuclear Accident Reporting System ODC Offsite Dose Calculations OSC Operations Support Center PBX Private Board Exchange PMS Performance Monitoring System TSC Technical Support Center ALARA As Low As Reasonably Achievable FSAR Final Safety Analysis Report 34

..-_ - - _ - . .. - . __ ,. ._--_. . -

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