ML20095K089
| ML20095K089 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 04/30/1992 |
| From: | Cottle W ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20095K092 | List: |
| References | |
| GNRO-92-00046, GNRO-92-46, NUDOCS 9205050004 | |
| Download: ML20095K089 (4) | |
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0 Entergy operapons,Inc.
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_s W. T. Cotue April 30, 1992 i
U.S. Nuc1 car Reguintory Cornmission Mail Stetion PI-137 Washington, D.C.
20555 Attentlon:
Document Control Desk
Subject:
Grand Gulf Nuclear St at ion Unit 1 Docket No. 50-416 Licenso No. NPF-29 Resolution of liigh Groun.! water Loyols GNRO-92/00046 Gentlemen:
Grand Gulf Nuclear Station (Gt NS) hnt monitor.Ing and dewatering unlis located around tbn power blocl. and the Standby Sntvice Water ilssins.
The purpose of the wells is to monitor and dowater the perched aquifer which under11on the pour S]ock. GGNS han experienced incidents where ground-wat er levels in excess of the current desip,n basis value of 109.0 fnot Mean Sea 1,cynt (MSb) have been repor;.ed.
On December 21, 1990 F.ntergy Oparnt'onn, Jne. provided a st atus report on the nfforts by GGNS to resolvo t.he groundwnter level isst.es at the site (reference: GNKO-90/00006, dnaed Danneber 21, 1990). GGNS also coinmit ted to provide resolution of 1he granndwater isnne by April 30, 1492.
The attached repot t sumnarir.nr. t hn outstanlit;n issues as
- t. hey relate to the determination of groundwater etcerdance ptohlems et the GGNS; development of a post-const ruct ion groundvator invel con +our map; dni ermination of the muitnem expected pont-construction troundwnter level within the power block area; and act. lone that will bo totnu to remico the high groundwater.tnvel problems at the site.
Also, Appendix 1 to.bn att achnd report is provided
.1990 "Requent f or Additional In fornation:
in response to your /.ugust 6, Groundwater bevel Control".
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o C4?D 232/SNLICFLP - 1 9205050004 920430
' I e'DR ADOCK 05000416 P
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April 30, 1992 GNRO-92/00046 Page 2 of 3 1:ntergy Operations feels that cvory ef fort. has been made to ensure issues associated with groundwater hin e been adequnt ely and ef fectively addressed.
Following completion of the activities delineated in the attached, no further actions will be required to maintain the design basis groundwater level due to recharge from natural sources at the GGNS.
Yours truly, 4 DP h WTC/.1S/mte attachment:
cc:
Mr. D. C. Illnt z iv/a)
Mr. J. L. Mathis -:w/a)
Mr. R. D. McGehoo (w/a)
Mr. N. S. Reynolds (w/a)
Mr.11. I.. Thornas (w/o)
Mr. Stewart D. Ebuctor (w/a)
Regional Administrator U.S. Nuclear Regulatory Commission Region II 101 Marietta St., N.W.,
Suite 2900 Atlanta, Georgia 30323 Mr. P. W. O'Connor, Project Manager (w/2)
Of fice of Nuclear Reactor Reguistion U.S. Nuclear Regulatory Commission MaJ1 Stop 13113 Washington, D.C.
20555 I
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L G9204232/SNLICFLR - 2 I
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CERTIFICATION DDR FOR GNRO-92/00046 Organization GNR0 Section Respons_1bility Cover Letter (all)
NS&RA Final Report Sectson 1 hpE.Cfvil Section 2 Section 3 Section 4
.Section 5 Section 6 Section 7 Section 8 Section 9 Appendix :1, Question 1/1 Appendix 1. Question (12
~ Appendix 1, Question #3 NS&RA r
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EQhCERRENCE REVIES TORg
' *SECTION_y RESPONSE DUE:
_04L30/92 GNRO-92/00046 Rev. 0 (NRC Required or Target)
' SUli]ECT :
Resolution of lif,h Groundwater Levels -
f J. Summern R. L. Patterson NRC Document Preparer Date Responsible Section Date Mannger/ Superintendent Com'nitment Concurrence SECTION 11 Responsible Organization Locations Commitment Prima ry/Sc.conda ry_
Duc Date Section VII.4, A visual inspection of the cooling Each Para 3, tower will be performed... to NPE-Civil Refueling Sen. 3 identify potential leakago paths that Outage may exist Section IX, The DGWL will be rained... A UFSAR 06/93 Para-5, change will be submitted to reflect NPE-Civil 12/93 Sen._2 6 3 this change...
Section-1X, Studios and assessment will be Para 5, incorporated intti plant calculations NPE-Civil 12/92 Sen. 4 Section IX,-
Cooling tower leakage will be Para 5,_
repaired during RF05 NPE-Civil End of Sen. 5-RPOS Section IX, Groundwater levels will be monitored Para 5, in the ~ futurn until sufficient data NPE-Civil 10/31/92 Sen. 6 is available This letter contains_ commitments requiring procedural implementation YES (-)
NO (X)
G9204232/SNLICFLR - 5 i
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