ML20244D045
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UNITED ETATES 8
NUCLEAR REGULATORY COMMISSION i
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,,e AUG 2 81984 Y
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9 0 - Q (0 i-9 Tom Tipton
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Dear Tom:
Thanks for the opportunity to get together and discuss the subject of HRC's information needs during an incident.
I believe that careful reevaluation of our information needs in light of the Commission's role has resulted in our identifying a reasonable approach.
I as enclosing a short description of this approach which, as I mer tione# on Mor. day, we refer to as the Emergency Response i
Data System (ERDS).
I am also enclosing the annotated paran;eter list and the memo report to Dick DeYoung that we discussed.
This memo report describes the drill we ran using the EROS approach in conjunction with Duke Power Company and the McGuire plant.
I have discussed with Ed Jordan your offer to pull together a small working group to discuss the ERDS approach.
Ed thought that an excellent idea and O
encouraged us to proceed.
if that is acceptable to you.I would like to suggest the week of September 17th, If you wish to contact me to discuss dates, i can be reached on 492-7361.
w Kenneth E. Perkins, Chief Incident Response Branch i'
Division of Emergency Preparedness and Engineering Response Office of Inspection and Enforcement
Enclosure:
As Stated t
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l Emergency Response Data System (ERDS) s Desipn Concept O
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Data Acquisitten Para' meter inputs to ERDS would be obtained from an existing computer system (e.g. SPDS, plant computer, EOF data systems, etc.) at the plant Data Transmission Data will be transmitted to the NRC Operation Center by modem to commercial telephone line or a dedicated line maintained by NRC (e.g.
ENS).
Data Collection A central processing system located in the NRC Operation Center will receive the data stream by modem.
The system will be designed to receive all varied data streams and to reformat the data into a consistant fo rma t.
The reformatted data will be output to CRT's and printer.
Parameter List The parameter list would include those parameters which would be necessary to assure that appropriate protective action is being taken with respect to offsite recommendations.
The list would be limited to those parameters involving plant status, radiological and met conditions.
Licensees will not be required to backfit their systems to include additional parameters to provide data on NRC's parameter list.
Data that is not available from the electronic data stream can be provided by voice over existing phone lines.
-l Transmission Frequency 4
The updating frequency of the licensees' systems will determine transmission frequency to NRC.
If more frequent updates are required for a very limited parameter set than is available from a particular licensee, the increased frequency will be accomplished by voice over existing phone lines.
J Control
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!'il The licensee will have complete control over data transmission. -EROS would be " switched on" by the licensee in the early stage of a declared li emergency.
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