ML20129F937
| ML20129F937 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 09/26/1996 |
| From: | Carns N WOLF CREEK NUCLEAR OPERATING CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| WM-96-0104, WM-96-104, NUDOCS 9610020123 | |
| Download: ML20129F937 (3) | |
Text
O a
W$LF CREEK
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NUCLEAR OPERATING CORPORATION Neil S. " Buzz
- Carns Chairman, President and Chief Executive Officer september 26, 1996 WM 96-0104 3
U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-137 Washington, D.
C.
20555 4L
Reference:
Letter dated August 30, 1996, from K.
E.
Brockman, NRC, to N.
S.
Carns, WCNOC St.bj ect :
Docket No 50-482:
Response to Exercise Weakness 50-482/9613-01 Gentlemen:
/
This letter transmits Wolf Creek Nuclear Operating Corporation's (WCNOC) response to Exercise Weakness 50-482/9613-01.
This exercise weakness identified that an operating crew failed to correctly formulate protective action recommendations during the walkthrough of a simulator scenario.
WCNOC's response to this exercise weakness is in the attachment. If you have any questions regarding this response, please contact me at (316) 364-8831, extension 4100, or Mr. Terry S. Morrill at extension 8707.
Very truly yours, W
a Neil S.
Carns NSC/jad Attachment cc:
L. J. Callan (NRC), w/a W.
D. Johnson (NRC), w/a J.
F. Ringwald (NRC), w/a J.
C. Stone (NRC), w/a f
f 3 EOl
/
9610020123 960926 PDR ADOCK 05000482 O
PDR PO. Box 411 i Burhngton, KS 66839 i Phone' (316) 3f>4-8831 An Equal Opportunity Employer M F HCVET
I Athschment to WM 96-0104 r
Pcga 1 of 2 o
Ranly to Exercise Weakness 50-482/9613-01 Exercise Weakness 50-482/9613-01: Failure to correctly formulate protective action recommendations.
. Note B on the protective action recommendation flow chart from Emergency Plan Procedure EPP 01-10.1,
' Protective Action Recommendations,' Revision 11, was misinterpreted.
As a result, a recommendation to evacuate John Redmond Reservoir was not made.
The failure to correctly formulate protective J
action recommendations was identified as an exercise weakness (402/9613-01)."
id=4ssion of Exarcise Weaknessi i
Wolf Creek Nuclear Operating Corporation (WCNOC) acknowledges and agrees that
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an exercise weakness of failing to correctly formulate protective action recommendations occurred during an Emergency Preparedness simulator exercise, contrary to EPP 01-10.1, " Protective Action Recommendations," Revision 11.
Reason for Weakness Two discrepancies were identified in this inspection report.
First, dose rate values were used instead of actual dose values in the formulation of Protective Action Recommendations (PAks).
The root cause of this discrepancy is that the Emergency Dose Calculation Program Release Rate form is not " user friendly" and the information presentation is deficient.
The second discrepancy was that Note B on the " Protective Action Recommendation Chart," Attachment A of EPP 01-10.1, was misinterpreted as stating that a release was not in progress.
Note B stated, "If plant conditions preclude the possibility of a release, it is not necessary to recommend evacuation of John Redmond Reservoir (JRR).
Otherwise, JRR is recommended for evacuation as a precautionary measure upon declaration i
of a Site Area Emergency."
The exercise scenario did eventually produce a release.
The root cause of this discrepancy is personnel error in that Note B was misinterpreted by the Shift Supervisor.
Corrective Steps Taken and Results Achievedt On July 26,
- 1996, electronic mail was issued to all Shift Supervisors, Supervising Operators, and Shift Engineers clarifying the purpose of Note B,
and stating that the expectation remains "to recommend evacuation of John Redmond Reservoir" unless plant conditions preclude the possibility of radiological release. The Shift Supervisor involved in this event was included on the electronic distribution.
On September 13, 1996, a Duty Emergency Director and Duty Emergency Manager meeting was held and the same clarification was addressed.
On September 13, 1996, the Manager Emergency Planning reinforced counseling to the Shift Supervisor involved in this event.
On September 16, 1996, the Emergency Dose Calculation Program Release Rate form was revised to bold print the section titles and the title for the dose values required for the Protective Action Recommendations.
Distinct separations were also inserted between sections.
At'tachm:nt to WM 96-0104 PIga 2 of 2
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On September 16,
- 1996, as an enhancement to improve human factors, the
" Protective Action Recommendation Chart," Attachment A of EPP 01-10.1 was revised.
Note B was designated as Note A and revised to emphasize considering evacuation of John Redmond Reservoir first, and then consider evaluating
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conditions that would preclude a release and warrant not recommending i
evacuation.
Date when Full Comoliance Will Be Achieved Full compliance with the above noted requireme nts has been achieved.
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