ML20041B978
| ML20041B978 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 02/03/1982 |
| From: | Sargent C COMMONWEALTH EDISON CO. |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20041B970 | List: |
| References | |
| NUDOCS 8202250462 | |
| Download: ML20041B978 (15) | |
Text
,
s' O One First National Plaza. Chicago. Ilknois Commonwealth Edison 8
Address Reply to: Post Office Box 767 y
Chicago. lilinois 60690 Feb rua ry 3, 1982 Mr.
A.
Schwencer, Chief Licensing Branch #2 Division of Licensing U. S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
LaSalle County Station Units 1 and 2 Response to NUREG 0814 Evaluation NRC Docket Nos. 50-373 and 50-374 Reference (a):
A. Schwencer letter to L. DelGeorge dated November 24, 1981.
Dear Mr. Schwencer:
The purpose of this letter is to provide a response to your reque-t for additional information concerning the LaSalle County Station Emergency Response Facilities.
Commonwealth Edison has reviewed Reference (a) and would like to note that a conceptual design is not intended to provide detailed information but rather is an overall guide to a specific goal.
As the design progresses, specifics are decided on and incorporated into the design. is Edison's response to the questions raisea in Reference (a) based on the current status of the design and construction ef forts.
Tne information in the attachment may change slightly as the project progresses.
The Commonwealth Edison Company Generating Stations Emergency Plan (GSEP) is provided (Attachment A) since much o f tne required information is included in this document.
Additionally, full size copies of applicable EOF drawings are provideo to facilitate your review.
It should be noted that the TSC and OSC s tructures presently exist and the final EOF is under construction.
If there are any further questions in this regard, please contact this office.
Very truly yours, b
6 C. E.
Sa rgen t Nuclear Licensing Administrator 1m Attachments cc:
NRC Resident Inspector - LSCS (w/o Attachments) 3379N 8202250462 820222 PDR ADOCK 05000373
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Question 1 1
The TSC and EOF structure, size, layout, work stations, functional areas, records management, oata and communications i
hardware locations, data and information flows, radiological monitoring and personnel protective equipment are not described.
Response
The LaSalle Technical Support Center structure is described in FSAR Appendix L as Uniform Building Code (UBC) seismic design and Class II (non safety-related).
Site elevation and grade f
I preclude flooding affecting the TSC.
Wind loading is addressed in design criteria listed in Appendix L.
There are no l
accessibility dif ferences between the TSC and Control Room.
j The TSC is approximately 76 f t. by 24 f t. main area with a 23f t.
by 14ft. room; bathrooms are adjacent to the TSC.
Layout and l
work stations are shown on Drawing 1.
Approximate sizes of work stations are as follows:
Ii I
NRC 10-1/2 ft. x 10 ft.
Environs Division 9ft. x 10 ft.
[
Stores / Admin./Maint./ Security 12 ft. x 10 ft.
Rad Chem Division 15 ft. x 9 ft.
Station Division 10 ft. x 9 ft.
Operations Division 8 ft. x 10 ft.
Technical Division 10 ft. x 9 ft.
Personnel functions as described in the June 1,1981 submittal on this subject will be performed at the respective work stations and conference table.
The communications center provides dedicated HPN, EOF, NARS and Control Room telephones.
Not shown is the data I/O area located between the communications center and the operations l
director.
I/O devices in this area allow access to computer data available to the TSC.
l 1
The data and information flow diagram is shown on Drawing 3 attached, i
i l
The Emergency Operations Facility for the LaSalle County Station will be located on CECO owned property, which is four miles north of Mazon, IL.
This location is approximately 15 miles from the station.
The E.O.F. was designed to satisfy the requirements set forth in section 4 " Emergency Operations Facility" of NUREG 0696 " Functional Criteria for Emergency Response Facilities".
5 r- -, -
Question 2 The TSC and EOF functions and staffing are inadequately discussed.
Response
The TSC is responsible for the functions prescribed for the Onsite Emergency Orgnaization in Section 3.2.1 o f the draf t generic GSEP. (Attachment A)
The EOF is activated during more serious emergencies to perform tne functions of the Offsite Emergency Organization in Section 3.2.2 of the generic GSEP.
The role of each facility is briefly describeo in Sections 3.5 thru 3.5.4 in the generic GSEP.
GSEP Figure 4.2-3 specifies the staffing to augment the onsite emergency orgnization.
Staffing goals o f the o f fsite emergency organization are determined from an assessment of the situation by the Corporate Duty Of ficer or Corporate Command Center Director.
GSEP Figure 4.3-1 indicates staffing goals for a limited response.
GSEP Figure 4.3-2 indicates staffing goals for a full response.
CECO considers these time frames as shown on Figure 4.2-3 for 4
augmenting on shif t capabilities to be goals.
However, these cannot be considered rigid, inviolate times due to the diversity of residential patterns, possible adverse weather conditions, and possible road congestion.
To facilitate meeting these goals, the 24-hour duty-call individual will iritiate a prioritization notification (call-list).
Station call-lists are j
normally prioritized by least travel time of station staff.
CECO is developing a prioritized Recovery Manager notification I
list.
This call list will enable the Corporate Duty Of ficer to notify the Recovery Manager who would require the least travel time to a particular E.O.F.
Question 3
.i The control room communications, equipment and procedures to interface with the emergency response facilities are not provided.
Response
The control room has both dedicated and common use communications to the TSC.
Although the control room has dedicated communications systems that reach locations other than the TSC, the intent is to insolate the control room from all
-T'
V The E.O.F.
structure presently being constructed will conform to the Uniform Building Code and/or Building Officials Conference Administrative Code (BOCA) 1981, as applicable.
This structure will be a non-seismic, Category I building.
The E.O.F.
size is based on 50 emergency response personnel occupying an area of approximately 11,000 sq. ft.
The E.O.F.
area will be divided into the following work stations; (see attached drawings E.O.F.
(D, L, BR )- A -101 & 10 2).
1.
Information display / monitoring area 360 sq. ft.
2.
Work area 2440 sq. ft.
3.
Recovery Managers o ffice 225 sq. ft.
4.
Record management area 608 sq. ft.
5.
NRC privacy area 510 ft.
6.
E.0.F.
Conference area 700 sq. ft.
7.
Environmental sample monitoring area 228 sq. ft.
8.
Microwave equipment room 100 sq. ft.
9.
Telephone equipment room 100 sq. ft.
10.
Women and Mens washroom and locker area.
11.
Press area 1000 sq. ft.
12.
Kitchen area.
13.
Storage area.
Personnel function locations and communication equipment are indicated on the attached drawings E.O.F.
(D, L,
Br) -E-ll2 &
f 113.
Raolological monitoring equipment in the TSC and EOF is similar.
The LaSalle TSC is equipped with an area radiation monitor with a readout in the radwaste control room.
A local alarm in the TSC is to be installed.
Both the TSC and final E.O.F. contain a PING-3 continuous ai r monitor, a CP and gamma detection instrumentation.
Personnel entering the TSC will be wearing their film badges and pencil dosimeters.
Additional high range dosimeters (10 rem) are available for use in the TSC and will be used when leaving the area.
The E.0.F. contains the same types of protective clothing as in the TSC.
New film badges and pencil dosimeters will be issued to all EOF personnel and an RCT will be available for time keeping in the EOF, if required.
Prior to activiation, the habitability will be determined by an RCT working for the Health Physics Director.
Records management is addressed in question 6.
v offsite communication responsibilities once the TSC has been activated.
The generic GSEP addresses communications and i
interface between the control room and other emergency facilities.
Section 3.2 discusses general organization.
Sections 4.0 thru 4.2 with associated tables describe the Station Group organization in greater details.
Sections 6.0 thru 6.2.4 with associated tables and figures provide information regarding sequence of actions and information flow.
Sections 7.0 thru 7.1.2 provide the general function o f the on-site emergency facilities.
Sections 7.2 thru 7.2.4 with associated figures discuss the details of the communications systems.
Question #4 The functions, locations, size, staffing, communications, layout, habitability or backup procedures, radiological monitoring and personnel protective equipment for the OSC are not described.
Response
The OSC is provided as the location to which operations support personnel will report during an emergency and from which they will be oispatched for assignments or duties in support of emergency operations.
The use of the OSC also aids in restricting control room access to those support personnel specifically requested by the shif t supervisor.
The operator's lunch room serves as the OSC during an emergency.
It is located in the Auxiliary Building on elevation 768 ft. directly south of the Shift Engineer's Of fice s
(see Drawing 2).
The actual size o f the OSC is 22 f t. x 24 ft.
with a useful working area of approximately 425 square feet.
The layout of the OSC is such that the telephone communications i
are located on the east wall, centerline, directly below the emergency lighting with storage for the protective equipment, radiation monitoring instruments and supplies located at the north end of the room.
The remaining portion of the room is set up with the normal compliment of cabinets, tables and food service machines found in a lunch room.
Staf fing of the OSC is accomplished by available Radiation / Chemistry Technicians and Operating personnel.
If the need for Maintenance personnel should arise, arrangements for those personnel will be made through the Maintenance Director in the Technical Support Center.
i
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i i
Two phone lines exist in the OSC.
One phone is a dedicated line between the OSC and the Control Room and the other is a standard PBX line which will allow onsite communications within the limitations of the station's phone system.
All offsite communications will be handled through the Technical Support
[
Center (TSC).
Habitability requirements for the OSC are no different than the
[
Auxiliary Building in general, however, the shielding design of i
the OSC provides the same protection factor as that providad
[
for in the Control Room.
Should it become necessary to evacuate the OSC, individuals would be relocated to the Control Room which serves as the backup OSC or other alternate locatian
[
as determined by the Station Director.
I Evacuation of the OSC is addressed in Station procedures when I
10CFR20 limits are likely to be exceeded; 1.25 rem to the whole body, internal exposure of 520 MPC hours or at the direction of the Station Director.
i Radiological monitoring equipment and personnel protective equipment are made up of the following*
I 1.
Particulate, Iodine, and Nobel Gas Monitor (PING-3)
I j
2.
High Range gamma detection instrumentation.
i j
3.
Contamination monitoring instrumentation.
)
1 4.
Respiratory equipment.
j 5.
High Range Self Reading Dosimeters.
l 6.
Anti-Contamination Clothing.
i 7.
Potassium Iodide Tablets.
~
Question 5 The TSC location is not adequately described.
Response
i The location of the TSC is oescribed in the GSEP manual and FSAR Appendix L.
It is on the basement mezzanine level el.
[
694'6" o f the Service Building.
i Question 6-I i
The recctds availability in the E.O.F.
is not provided.
i f
i
Response
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The LSCS final E.0.F. will comply with the intent of the i
requirements of the NUREG-0696 Section 4.9 concerning E.O.F.
i records availability and management.
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3 The aoove referenced records will for the most part be stored and maintained in the E.O.F. in some combination of microfilm microfiche and hard copy.
The optimum arrangement to be deter-mined prior to 10/1/82.
All other records not permanently stored at the E.O.F. will be available for transmission to the E.O.F.
in a time frame compatible with the function of the E.O.F.
The records available to the E.O.F.
will be periodi-cally updated as necessary in order to ensure accuracy and completeness.
This will be accomplished by expanding the controlled copy distribution system presently in use.
Question 7 The parameter set, security, isolation of safety sensor connections, reliability, training, maintenance and quality assurance for the data acquisition system are not adequately described.
Response
In addition to CRT graphics, the list of parameters, available i
from the process computer at the TSC is found in GSEP table LA7-1.
l The haroware interconnection of the computer to Class lE signals for the TSC is isolated to ensure that operation of, or failure within, the computer does not degrade the quality of control room signals.
No existing Class lE signal circuit will be opened to provide separate isolation to the TSC if a suitaole bufferred non-Class lE associated circuit is already availEble; the TSC isolator will be placed in the associated circuit.
The need for reliability in the data acquisition system (DAS) 1 is being addressed through the use of redundancy.
The system had redundant cumputers and peripherals.
The loss of any one component in the system should not result in the total loss of access to any data parameter from any location.
In some cases the form of the display may be different, but the data will be available.
The process I/O System does not contain this level of redundancy.
Each I/O cabinet has its own power supply and scanning hardware.
A failure in a cabinet will not result in total loss of data.
Our experience with these I/O Systems has been good.
The OAS is an extension to the Process Computer System.
The operators and other station personnel are alreacy familiar with its operation.
Trainea hardware and sof tware people are also i already available.
Hardware people attend vendor training r
classes.
The software training is a comoination o f vendor training classes and in-house training.
T' s
The hardware maintenance is done by CECO personnel who are resident at the site.
These people are normally on site ouring the day shift, five oays a week.
They are on call 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> a day, seven days a week.
Backup personnel are available from other CECO stations that have similar hardware and from the vendors.
Software programming and maintenance is supported by a central process computer group.
These people are also available on call if necessary.
The quality assurance proceoures presently in place for NSSS software will be extenced to include the E.O.F. software.
This includes the following features:
1.
A request procedure that documents request for changes.
These changes must be reviewed and authorized.
2.
Testing of the software at the central process computer facilities on computers similar to those in the station.
3.
Installation and functional testir g o f software at the station.
I 4.
Review and sign-off on changes by station personnel.
5.
Documentation of the sof tware and changes are maintaineo at the station and at the central process computer facility.
6.
Perloolc review of software in station computers to detect any unauthorized changes.
This is done by comparison with previous system strip.
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