ML18017A511

Forwards Oversized Maps & Photo Attachments to Util 781129 Rept on Main Dam Core Trench Features.W/O Drawings

ML18017A511
Person / Time
Site:	Harris, Brunswick, Robinson
Issue date:	05/08/1979
From:	Floyd S CAROLINA POWER & LIGHT CO.
To:	Miner S Office of Nuclear Reactor Regulation
References
NUDOCS 7905080453
Download: ML18017A511 (8)

Text

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

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ACCE N NB .7905080053 D ~ DATE: 79/05/08 NOTARIZE . NO OCKET FAG IL+ 5 P 1 H H 0 5 24 2i CAR E 0500 20 pw 050 03 AUTH'AME AUTHOR AFF ILLATION 5'H &izalQ PA-P-P-8 FLOYDi5 AD. CAROLINA POWER & LIGHT CO ~ Qe -WO REC IP ~ NAME RECIPIENT AFF IL I AT ION So -40/

MINERt S DIVISION OF PROJECT MANAGEMENT so-OoZ

SUBJECT:

FORWARDS OVERSIZED MAPS 8 PHOTO ATTACHMENTS TO UTIL 781129

$ 6- 2g REPT ON MAIN DAM,CORE CODE'001B TRENCH'FEATURES'ISTRIBUTION COPIES RECEIVED ~ LTR / ENCL i SIZE ~

ION: TITLE: PSAR/FSAR AMDTS AND RELATED

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FACT CORRESPONDENCE'OTFS; P//876 ~ 2/i'AJGS ~ s REC IP IENT, COP IES RECIPIENT ID CODE/NAME COPIES ID CODE/NAME LTTR ENCL LTTR ENCL 05 PM NEIL'PBdCS, 88AIAN4 1 AD EISA'HL47; <R/NEW 1 0 BC <R~</, R84D =1 0 LA ogHH/,og8FH 1 P

[NTERNAL: 1 1 02 NRC PDR 1 1 06 I & E 2 2 08 OPERA LIC BR 1 1 09 GEOSC IEN BR 1 10 QAB 1 1 ii "MECH ENG BR 13 MATL ENG BR 1

'2 2 1 12 15 STRUC ENG BR REAC SYS BR 1

1 1

1 16 ANALYSIS BR 1 -1 17 CORE PERF BR 1 1 18 AUX SYS BR 1 1 19 CONTAIN SYS 1 1 20 I & C SYS BR 1 1 21 POWER 8YS BR 1 1 22 AD SITE TECH 26 ACCDNT ANLYS 1 1 27 EFFL TRT SYS 1 1 28 RAD ASMT BR 1 -1 29 K IRKWOOD 1 1 AD FOR ENG 1 0 AD PLANT SYS 1 0 AD REAC SAFETY 1 0 AD SITE ANLYSIS 1 0 D IRECTOR NRR 1 0 MPA 1 0 OELD 1 0 EXTERNAL: 03 LPDR 1 1 00 NSIC 1 1 ~

30 ACRS 10 io zA

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~$ 3 Ld1 gpss P 8 L.CJ TOTAL NUMBER OF COPIES REQUIRED: LTTR A9 ENCL, 39 (AF

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Carolina Power & Light Company Mr. Sydney Miner Project Management Branch Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, D. C. 20555

Dear Mr. Miner:

Enclosed is a complete set,of the attachments to Carolina Power &

Light Company's November 29, 1978, report on the main dam core trench features A and B which you requested.

Yours very truly, S. D. Floyd Senior Engineer Nuclear Licensing SDF/mf Enclosure VBM088 g 5'3 411 Fayettevilte Street o P. O. Box 1551 o Raleigh, N. C. 27602

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FIGURE 3 KEY TO PLAN GEOLOGIC MAP CORE TRENCH STATION 2+90 TO 3+90 SCALE 1 INCH ~ 5 FEET A.. Fault A Oriented N34E 75SE, Terminates within core trench B. Fault B En echelon set of 4 fractures with an average strike of NBOE C. Fault C

1. Fault A terminates

2. Granitic dikelet.

3. 1.0 inch of right lateral offset of granitic dikelet.

4. 3.0 inches of right lateral offset of granitic dikelet.

5. 3.8 inches of right lateral offset of granitic dikelet.

6. 1.0 inch of right lateral offset of granitic dikelet.

7. 6.0 inches of right lateral offset of granitic dikelet (along Fault A).

8. 3.0 inches of right lateral offset of.epidote filled fracture (along Fault A).

9. Epidote filled fracture 1 to 3 inches wide. Reaches maximum width between Sta 3+20 and 3+30.

10. Epidote filled fracture 0.5 to 2.0 inches wide. Epidote filling discontinuous along fracture.

11. Quartz-feldspar vein.

12. Quartz. feldspar pod.

13. Granitic dikelet.

14. Granitic dikelet terminates or cannot be traced due to degree of weathering in this area.

15. Magnetite flow or dike 2 to 3 inches wide. Intrudes along two parallel NE trending fractures.

16. Pods of "granitic" material texturally and compositionally similar to granitic gneiss.

17. Zone of highly fractured rock 2 to 8 inches wide. No displacement of other fractures which cross the zone observed. Zone can be traced across the core trench and onto the NW wall where it appears to be related to axial plane fracturing.

18. Quartz feldspar vein completely crosscuts granitic dikelet.

19. Fracture terminates.

20. Granitic dikelet.

21. Epidote filled fracture 3 to 5 inches wide.

22. Epidote filled fracture bifurcates (no epidote along either fracture).

23. Epidote filled fracture thins into fracture with no mineralization.

24. Epidote filled fracture offset 9 inches by Fault C.

25. Thin (1 to 2 inches wide) epidote filled fracture which thins to a fracture with no mineralization.

26. Epidote filled fracture offset 4 inches by Fault C. Some drag observed (right lateral) along trace of the fault.

27. Fault C cannot be traced beyond this point.

28. Southeast end of a quartz. feldspar vein.

29. Closely spaced set of joints that crosscut Fault C with no offset.

30. Closely spaced set of joints oriented N40E,40SE.

31. Fault A terminates.

32. Closely spaced set of joints.

33. Fault C bifurcates and becomes a single fracture where it offsets epidote filled fracture (No. 25).

0 5

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EXPLANA TlrJN Fuliater. Gramre o ooo o

o: e +

+ Oo Schistiise Grani!i ct N63E Mafchfino for Figure 26 2 o oo + ...";:.,;. Mica Schist Hornfof'ende Mica Gneiss

' Quanz Folhspar 005 -I Fault wi h relative lateral movemenr shown with arrows and dip

,,'2) of the faukt plane.

'72 Fxfoh'ani>n weathering surface with 77 haclnires pointing dorm the surface 0+10 38 eah q

Cumposi tional layering hachures down dip, 58 Vain, di kelet, or mineralized fracture.

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'4 Joint or contact.

io 0+15 45 to Stnke and hip of Cornposftronaf

,53 o4 layering S HM II P7

'Y3. oHMD ~P Strike and dip of Joinn Sl.

."::;::<:::::::::.:.":..':::::::::::::::::::;:I'5,',: 4 ..~7: <<" '~87 I-;:2 can Strike zv riip u! Metamorpt fnli iin aran" eo S, 0+20 'HMD - PB Br,':I

. I::.': I:: '::7:;:...'.::::::::::: .:: ~!".'.: '-.-'. '5;.:.~45

10) v'ari

.';:::.':::;;".i82 0+ 25 SHMD - P6 ':.'$

SHMD PI Sovnole Location Southeast Wa/7 of Core Trench "".'Q~,t p meat:

SCALE IN FEFT 0+30 -i F J Ittp TDDDKEIFlLE 84 THIS DOCUMENT IS DELIVERED IN ACCORDANCE

". 1st WITH AND IS SUBJECT TO THE PROVISIONS OF Line for Figure 2A

'atch SFCTION X CF THE CONTRACT BETWEEN CARO-

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~ ..'v1 LINA POWEF & LIGHT COMPANY AND EBASCO t SEFIVICES INC.ORPORATI DATED SEPTEMBER 1.

1910, AS AMENDED 0+35[ tc CAROLINA POWER & LIGHT SHEARON HARRIS NUCLEAR POWER PLANT MAIN DAM PLAN GEOLOGIC MAP u

SOUTHEAST SIDE OF CORE TRENCH 2A STA, 2+90 To 3+90 0+40 i kook

~IC ooo EBASCO SERVICES INCORPORATED

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la dro t 45~ SCA LE IV I" 5' APP 8 OJ/ EP DATE I 8 IVOTEF SEf iURE 3 FOR I EY I 'GIC Sf.CTIOI NO DATE REVISION BY CVI APPROVED CH FIGURE 2

EST AUX DAM SPILI WA1 t

WEST AUX.

CHANNEL I~WES UX Xo gO ii4 10

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tE 1

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'~ WEST AUX SEPARATING /HKE i

0'AIN DAM SPILLWAY '. ~ 'Oi G/

LOCATION OF SPILLWAY DEFORMATIONAL FEATURE CORE TRENCH tn

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F MAIN DAM MAIN RESERVOIR RGENCY ht E y CONDUIT ( Normal Pool Elevation 22Q.Q' EMERGENCY SER CE WATER SERVICE WATER ISCHA GE CHAN" INTAKL= CHANNEL o$ LOCATION OF CONDUIT SCHISTOSE ZONES o

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OWE RS 0 PLANT 0

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COOLING IE( TOWERS Xc

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~ 1IP COOLING WER ip 1 MAKE UP WATER x INTAKE CHANNFI Docl:l.t 4

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->X p Castrol D;..&4'of Dooomoob DECO~TOOT DOCKET FILE Xp 1 000 200u 0 SCALE IN FEET o CAROLINA POWER & LIGHT 0 SHEARON HARRIS NUCLEAR POWER PLANT

~O eo C1 EBASCO SERVICES INCORPORATED LOCATION OF MAIN OAM CORE TRENCH FIGURE 1