ML20069K396
| ML20069K396 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 03/21/1983 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| REF-SSINS-6820 IEB-81-03, IEB-81-3, NUDOCS 8304260337 | |
| Download: ML20069K396 (3) | |
Text
-
KANSAS GAS AND ELECTRIC COMPANY THE ELECTAIC COMPANY G L E N 'e L MOESTER WiCE PRESIDEns? sevCLEA88 March 21, 1983 Mr. John T. Collins, Regional Administrator U.S. Nuclear Regulatory Commission
!,?' ' f !
~
Region IV i'
i 611 Ryan Plaza Drive, Suite 1000 l
t FMR 2 3198
- G Arlington, Texas 76011 Y ___-_ _
j KMLNRC 83-032 Docket No. STN 50-482 Ref: 1) Letter KMLNRC 81-096 dated 7/9/81 frcm GLKoester, KG&E, to KVSeyfrit, NRC
- 2) Letter of 1/21/83 from ELJordan, NRC, to GLKoester, KG&E Subj: IE Bulletin 81-03
Dear Mr. Collins:
Reference 1) transmitted Kansas Gas and Electric Company's (KG&E) response to IE Bulletin 81-03 concerning " Flow Blockage of Cooling Water to Safety System Components by Corbicula SP. (Asiatic Clam) and Mytilus SP. (Mussel)."
Reference 2) requested additional information concerning KG&E's response to Item 4a of the Bulletin. Item 4a asked for an evaluation of the potential for intrusion due to low water level and high velocities in the intake structure expected during worst case conditions. This letter provides the requested information.
The preventive measures for controlling the intrusion of Corbicula were outlined in Reference 1). These measures included the use of chlorine dosing and temperature shock to restrict the entrenchment of this clam in any of the WCGS safety systems. The use of screens or filters to exclude Corbicula juveniles would require extremely small mesh size (<10 mm). At this time, KG&E uses a standard 3/8 inch mesh metal screen to protect the circulation water intake pumps. This screening would be somewhat effective in preventing intrusion of adults. Currently there are no plans to place any small filters or screens at Wolf Creek Generating Station. During worst case conditions (e.g. Icw lake levels and high water velocities), the intrusion potential would remain very low due to the preventive measures stated above.
The statements above are based on the supposition that Corbicula is present in the Wolf Creek Cooling Lake.
During the past ten years of ecological monitoring on Wolf Creek and the Neosho River, Corbicula has never been found.
(([
8304260337 830321 PDR ADOCK 05000482 O
PDR 201 N. Market - Wichita, Kansas - Mail Address: PO. Box 208 I Wk *sita, Kansas 67201 - Telephone: Area Code (316) 261-6451
r__
-Mr. John T. Collins KMLNRC 83-032 March 21, 1983 It has never been found in that part of the Neosho River drainage which lies in Kansas. Although the possibility of Corbicula becoming established in the Neosho River is feasible, the time factor involved could be quite long.
If you have any further questions concerning this matter, please contact me or Mr. Otto Maynard of my staff.
Yours very truly, [
1
(
pgy Glenn L. Koester Vice President - Nuclear GLK:bb cc: Edward L. Jordan, Director Division of Engineering and Quality Assurance Office of Inspection and Enforcement
)
U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Messrs. HRoberds/SSchum Resident NRC Inspectors Box 311 Burlington, Kansas 66839-I i
l l
I I
l t
l l
l t
I r
I.
OATH OF AFFIRMATION STATE OF KANSAS
)
) SS:
COUNTY OF SEDCJfICK )
I, Bernard Ruddick, of lawful age, being duly sworn upon oath, do depose, state and affirm that I am Vice President - Engineering of Kansas Gas and Electric Company, Wichita, Kansas, that I have signed the foregoing letter of transmittal for Glenn L. Koester, Vice President - Nuclear of Kansas Gas and Electric Company, know the contents thereof, and that all statements contained therein are true.
KANSAS GAS AND ELECTRIC COMPANY ATTEST:
Belnard Ruddick )
Vice President - Engineering W.B. Walker, Secretary STATE OF KANSAS
)
) SS:
COUNTY OF SEDGWICK )
BE IT REMEMBERED that on this 21st day of March, 1983
, before me, Evelyn L. Fry a Notary, personally appeared Bernard Ruddick, I
Vice President - Engineering of Kansas Gas and Electric Company, Wichita, L
Kansas, who is personally known to me and who executed the foregoing instru-l ment, and he duly acknowledged the execution of the same for and on behalf of and as the act and deed of said Corporation.
l IN WITNESS WHEREOF, I have hereunto set my hand and affixed my seal the l
, date and year above written.
,,,O L.
(
l
.' 4.. * *..,*,'y ~;.,
j 1,--
/
u n
f-
- I E elyn Fry
, Notary 1;.
vo # l 4.,y".p',.,My C9Einission expires on August 15, 1984.
i
- "?~,,,..,-
t
( L (f T,71
+
L
,