IR 05000254/2006017

IR 05000254-06-017, 05000265-06-017; 11/27/2006 - 12/15/2006; Quad Cities Nuclear Power Station, Units 1 & 2; Identification and Resolution of Problems

ML070290284
Person / Time
Site:	Quad Cities
Issue date:	01/29/2007
From:	Ring M NRC/RGN-III/DRP/RPB1
To:	Crane C Exelon Generation Co, Exelon Nuclear
References
IR-06-017
Download: ML070290284 (25)

Text

Jan uary 29 , 20 07 M r. C hri stop her M. C rane Pre si den t an d C hi ef Nuc le ar Off ic er Ex el on Nu cl ear Ex el on Genera tio n C ompa ny , LL C Quad Ci tie s N ucl ear Po w er S tati on 430 0 W in f ie ld R oad W arren v il le , IL 60 555 SUBJECT:

QUAD CIT IES NUCLEAR POW ER STAT IO N, UNIT S 1 AN D 2 N R C P R OB L E M I D E N TIF IC A TION A N D R E S OL U TION I N S P E C TION RE PORT 0 500 025 4/20 060 17; 050 002 65/2 006 017 De ar M r. C rane: On D ece mber 15, 200 6, th e U.S. Nu cl ear Re gula tory C ommis si on (NR C) compl eted an in spe cti on of prob le m i den tifica tio n a nd reso lu tio n a t y our Quad Ci tie s N ucl ear Po w er S tati on, U n i ts 1 a n d Th e e n cl o se d i n sp e ct i o n r e p o rt d o cu me n ts t h e i n sp e ct i o n fi n d i n gs w h i ch w e re d i s c u s s e d o n D e c e m b e r 1 5 , 2 0 0 6 , w i t h M r. G i d e o n a n d o t h e r m e m b e r s o f y o u r s t a ff.Thi s i n sp e ct i o n w a s a n e x a mi n a ti o n o f ac ti v i ti e s co n d u ct e d u n d e r y o u r l i ce n se a s th e y r e l a te t o the id enti f ic ati on and res ol uti on of prob le ms, co mpl ia nce w ith the C ommis si on's ru le s a nd regul ati ons an d w ith the co ndi tio ns of y our ope rati ng l ic ens W ith in the se area s, th e in spe cti on in v ol v ed sel ecte d e x ami nati on of proce dure s a nd repre sen tati v e re cord s, o b se rv a ti o n s o f ac ti v i ti e s, a n d i n te rv i e w s w i th p e rs o n n e On t h e b a si s o f th e s a mp l e s e l e ct e d for r e v i e w , th e t e a m c o n cl u d e d t h a t, i n ge n e ra l , p ro b l e ms w ere prop erl y i den tifie d, e v al uate d, a nd corre cte On e fin di ng of v ery l ow sa f ety si gnifica nce (G r ee n) w as ide nt if ied dur ing th is ins pe ct ion as so ci at ed w it h t he ef f ec t iven es s o f th e c or r ec t ive acti on progra The find in g in v ol v ed the f ai lu re to de v el op acti ons to corre ct c ond iti ons adv erse to qual ity i den tifie d d uri ng roo t ca use i nv esti gatio n a cti v iti e Thi s find in g w as al so d e te rmi n e d t o b e a v i o l a ti o n o f N R C r e qui re me n t H o w e v e r, b e ca u se o f i ts v e ry l o w s a fety sig nif icance and becaus e it has been enter ed into y our cor rec tive action prog ram , the NRC is treati ng thi s find in g as a n on-c ite d v io la tio n (N CV), i n a cco rdan ce w ith S ecti on VI.A.1 o f the N R C's E n forc e me n t P o l i c If y ou con test the sub ject o r se v eri ty of an N CV i n th is rep ort, y ou sho ul d p rov id e a res pon se w ith the ba si s for y our den ia l, w ith in 30 da y s o f the da te o f thi s i nsp ecti on repo rt, to the U.S. Nuclear Reg ulator y Com miss ion, AT T N: Docum ent Cont rol Desk , W ashing ton DC 205 55-0 001 , w ith co pi es to th e R egio nal A dmi ni strato r, R egio n III; the Di recto r, Of f ic e o f En f orce ment, U.S. Nu cl ear Re gula tory C ommis si on, W ash in gton, D C 205 55-0 001; an d th e NR C Re si den t Ins pec tor a t the Qua d C iti es Nu cl ear Po w er S tati o C. Cra ne-2-In a cco rdan ce w ith 10 C FR 2.3 90 of the NR C's "Ru le s o f P racti ce," a c opy of thi s l etter and its en cl osu re w il l be av ai la bl e e le ctron ic al ly for pu bl ic i nsp ecti on in the N RC P ubl ic D ocu ment Ro om o r from the Pu bl ic ly A v ai la bl e R eco rds (PA RS) co mpon ent of NR C's doc umen t sy stem (A D A M S), a cc e ss i b l e fro m t h e N R C W e b s i te a t htt p://ww w.nr c.g ov/read ing-r m/adam s.h tm l (the P u b l i c E l e ct ro n i c R e a d i n g R o o m).

Sin ce r ely,/RA/

M ark A. Ri ng, Ch ie f Bra nch 1 D i v i si o n o f R e a ct o r P ro je ct s Do cket No s. 5 0-25 4; 5 0-26 5 Li cen se No s. D PR-29; DP R-3 0 En cl osu re:

Insp ecti on Re port No. 05 000 254/200 601 7; 0 500 026 5/20 060 17 cc w/enc l:

Si te V ic e P resi den t - Qu ad Ci tie s N ucl ear Po w er S tati on Pl ant M ana ger - Qua d C iti es Nu cl ear Po w er S tati on Re gula tory A ssu ranc e M ana ger - Qua d C iti es Nu cl ear Po w er S tati on Ch ie f Ope rati ng Of f ic er Se ni or V ic e P resi den t - N ucl ear Se rv ic es Se ni or V ic e P resi den t - M id-W est Re gion al Operati ng Group V i ce P re si d e n t - M i d-W e st Op e ra ti o n s S u p p o rt V i ce P re si d e n t - L i ce n si n g a n d R e gul a to ry A ff a i rs Di recto r Li cen si ng - M id-W est Re gion al Operati ng Group M ana ger Li cen si ng - D resd en and Qua d C iti es Se ni or C oun sel , N ucl ear, M id-W est Re gion al Operati ng Group Do cumen t C ontro l De sk - Li cen si ng V i ce P re si d e n t - L a w a n d R e gul a to ry A ff a i rs M id A meri can E nergy C ompa ny Ass is tant Attorn ey Gen eral Ill in oi s E mergency M ana gement A gency Stat e Liaison Of f icer, State of Illinoi s S t a t e Li a is o n O f f ic e r , St a t e of I o wa Ch ai rman, Il li noi s C ommerce Co mmissi on D. Tubbs, M ana ger of Nu cl ear M id Ameri can E nergy C ompa ny C. Cra ne-2-In a cco rdan ce w ith 10 C FR 2.3 90 of the NR C's "Ru le s o f P racti ce," a c opy of thi s l etter and its en cl osu re w il l be av ai la bl e e le ctron ic al ly for pu bl ic i nsp ecti on in the N RC P ubl ic D ocu ment Ro om o r from the Pu bl ic ly A v ai la bl e R eco rds (PA RS) co mpon ent of NR C's doc umen t sy stem (A D A M S), a cc e ss i b l e fro m t h e N R C W e b s i te a t htt p://ww w.nr c.g ov/read ing-r m/adam s.h tm l (the P u b l i c E l e ct ro n i c R e a d i n g R o o m).

Sin ce r ely,/RA/

M ark A. Ri ng, Ch ie f Bra nch 1 D i v i si o n o f R e a ct o r P ro je ct s Do cket No s. 5 0-25 4; 5 0-26 5 Li cen se No s. D PR-29; DP R-3 0 En cl osu re:

Insp ecti on Re port No. 05 000 254/200 601 7; 0 500 026 5/20 060 17 cc w/enc l:

Si te V ic e P resi den t - Qu ad Ci tie s N ucl ear Po w er S tati on Pl ant M ana ger - Qua d C iti es Nu cl ear Po w er S tati on Re gula tory A ssu ranc e M ana ger - Qua d C iti es Nu cl ear Po w er S tati on Ch ie f Ope rati ng Of f ic er Se ni or V ic e P resi den t - N ucl ear Se rv ic es Se ni or V ic e P resi den t - M id-W est Re gion al Operati ng Group V i ce P re si d e n t - M i d-W e st Op e ra ti o n s S u p p o rt V i ce P re si d e n t - L i ce n si n g a n d R e gul a to ry A ff a i rs Di recto r Li cen si ng - M id-W est Re gion al Operati ng Group M ana ger Li cen si ng - D resd en and Qua d C iti es Se ni or C oun sel , N ucl ear, M id-W est Re gion al Operati ng Group Do cumen t C ontro l De sk - Li cen si ng V i ce P re si d e n t - L a w a n d R e gul a to ry A ff a i rs M id A meri can E nergy C ompa ny Ass is tant Attorn ey Gen eral Ill in oi s E mergency M ana gement A gency Stat e Liaison Of f icer, State of Illinoi s S t a t e Li a is o n O f f ic e r , St a t e of I o wa Ch ai rman, Il li noi s C ommerce Co mmissi on D. Tubbs, M ana ger of Nu cl ear M id Ameri can E nergy C ompa ny DO CU M EN T N AM E: C:\M y Files\Co pies\Q uad 2006 017.w pdG P ublicl y A v ailab le G N on-Pub licly A v ailab le G Se ns i ti ve G Non-S en s i ti ve T o r ece iv e a copy of th is docu m en t, in dica te in th e c on cu r r en ce box "C" = C opy wi th ou t a ttac h/en cl "E" = C opy wi th at tach/en cl "N" = N o cop y O FFI CE RI IIE RI IIN RI II RI II NA M E M Rin g:sls PP elke for G She ar DA T E 01/2 9/20 07 01/2 9/20 07OFFICIAL RECO RD CO PY C. Cra ne-3-DIST RIBUT IO N: T EB DX C1 J F W1 RidsNrr DirsI rib GEG K GO GLS KKB CAA1 LS L (ele ct r on ic IR's onl y)C. Ped er so n, DRS (h ar d c op y - I R's onl y)D R P II I D R S II I PLB1 TXN RO Pr ep or t s@nr c.g ov (i n sp e ct i o n r e p o rt s, fi n a l S D P l e tt e rs , a n y l e tt e r w i th a n I R n u mb e r)

E n cl o su reU. S. N U C L E A R R E GU L A TOR Y C OM M IS S IONR E GION I II Do cket No s:

50-2 54; 50-2 65 Li cen se No s:

DP R-2 9; D PR-30 Re port No:

050 002 54/2 006 017; 05 000 265/200 601 7 L i ce n se e:

E x e l o n N u cl e a r Fac il ity:

Quad Ci tie s N ucl ear Po w er S tati on, Un its 1 and 2 Locat ion:

Cordo va, Illi nois Da tes:

No v embe r 27 , 20 06, throu gh De cembe r 15 , 20 06 Insp ecto rs:

A. Ba rker, Proje ct E ngin eer - Team L ead M. K urth, Re si den t Ins pec tor D. Jon es, Re acto r E ngin eer R. Ganse r, Il li noi s E mergency M ana gement A gency Ap prov ed by:

M ark A. Ri ng, Ch ie f Bra nch 1 D i v i si o n o f R e a ct o r P ro je ct s 1 En cl osu re S U MMA R Y OF F IN D IN GS IR 050 002 54/2 006 017 , 05 000 265/200 601 7; 1 1/27/200 6 - 12/1 5/20 06; Quad Ci tie s N ucl ear Po w er S tati on, Un its 1 & 2; Id enti f ic ati on and R eso lu tio n o f P robl ems.The i nsp ecti on w as con duc ted by regi on-b ase d i nsp ecto rs a nd the resi den t i nsp ecto r at the Quad Ci tie s N ucl ear Po w er S tati o One find in g of v ery l ow sa f ety si gnifica nce (Green) w as id enti f ie d w hi ch in v ol v ed an ass oci ated no n-ci ted v io la tio n (N CV). The si gnifica nce of most f in di ngs i s i ndi cate d b y the ir col or (Gree n, W hi te, Y el lo w , R ed) usi ng Insp ecti on M anu al C hap ter (IM C) 060 9, "S igni f ic anc e D etermi nati on Pro ces s," (S DP). F in di ngs for w hi ch the SD P doe s n ot app ly may be Gree n o r be as si gned a s ev eri ty l ev el after N RC man agement rev ie The NRC's prog ram f or overseeing the saf e operat ion of comm erc ial nuclear pow er re act ors is des cri bed i n N UR EG-16 49, "Re acto r Ov ersi ght Pro ces s," R ev is io n 3 , da ted Jul y 20 00.Id e n ti fi c a ti o n a n d R e s o lu ti o n o f P ro b le ms In gen eral , the sta tio n i den tifie d i ssu es and en tered the m i nto the corre cti v e a cti on program (CA P) at th e a ppro pri ate le v e In ad di tio n, i ssu es that w ere id enti f ie d from op erati ng ex peri enc e re ports an d i nsta nce s w here pre v io us corre cti v e a cti ons w ere in eff ecti v e o r i n a p p ro p ri a te w e re a l so e n te re d i n to t h e C A Th e i n sp e ct o rs c o n cl u d e d t h a t i ss u e s w e re prop erl y pri ori tiz ed and gene ral ly ev al uate d w el The in spe ctors dete rmin ed that con di tio ns at the Quad Ci tie s s tati on w ere con duc iv e to i den tify in g is sue The l ic ens ee staff at Quad Ci tie s w as aw are of and gene ral ly famil ia r w ith the C AP an d o ther stati on proc ess es, in cl udi ng the Empl oy ee Co nce rns Pro gram, throu gh w hi ch con cern s c oul d b e ra is e One find in g of v ery l ow sa f et y sig nif ic an ce (G r ee n) w as ide nt if ied as so ci at ed w it h t he ef f ec t iven es s o f th e c or r ec t ive acti on progra The find in g ori gina ted f rom the rev ie w of a root cau se in v esti gatio n c ond ucte d for th e U n i t 1 s ta n d b y l i qui d c o n tr o l t a n k th ro u gh-w a l l l e a k. A.

Insp ecto r-Iden tified and S elf-Re v eale d Find ingsC o rn e rs to n e: Mi ti g a ti n g S y s te ms*

Gre e Th e i n sp e ct o rs i d e n ti fie d a n N C V o f 10 C F R P a rt 5 0 , A p p e n d i x B , C ri te ri o n XV I,"Cor rec tive A ction," f or f ailure to assu re th at cond itions adverse to q uality w ere pr om ptly corre cte S pec ifica ll y , the i nsp ecto rs c onc lu ded tha t the l ic ens ee f ai le d to de v el op acti ons to corre ct c ond iti ons ad v erse to qual ity i den tifie d d uri ng roo t ca use i nv esti gatio n act iv ities f or a Unit 1 standby li q uid contr ol tank leak ident if ied in Oc tobe r 200 T his f in di ng ha d a cro ss-cu ttin g aspe ct i n th e a rea of prob le m i den tifica tio n a nd reso lu tio n bec aus e th e l ic ens ee f ai le d to tho roughl y ev al uate co ndi tio ns id enti f ie d d uri ng i ts ro ot cau se in v esti gatio n for th e S LC tan k le akage w hi ch resu lte d i n th e fai lu re to de v el op a p p ro p ri a te c o rr e ct i v e a ct i o n The l i ce n se e e n te re d t h i s p e rfor ma n ce d e fic i e n cy i n to the CA P f or re sol uti on.This find in g is as soc ia ted w ith the M iti gatin g Sy stems Co rners ton The find in g w as mo re th an minor because if lef t uncor rec ted, f utur e conditions adverse to q uality w ould not be f ully ev aluated or corr ect e T he inspect ors assesse d the sig nif icance of this f in di ng as v ery l ow sa f ety si gnifica nce be cau se the f in di ng di d n ot re pres ent an actu al lo ss of safety functi on of the stan dby l iqui d c ontro l tan (S ecti on 4OA2.a)

2 En cl osu re B.

Lice nse e-Ide ntified V iolatio nsNo find in gs of si gnifica nce w ere id enti f ie En cl osu reRE PORT D ET A ILS4.

OTHER A CT IVI T IES 4OA2 Pro bl em Id enti f ic ati on and R eso lu tio n a.

Ass ess ment of the Co rrecti v e A cti on Pro gram (1)

Insp ecti on Sco peThe i nsp ecto rs re v ie w ed doc umen tati on f or th e p ast 2 y ears i ncl udi ng: N RC i nsp ecti on repo rt find in gs, sel ecte d c orrec tiv e a cti on doc umen ts, l ic ens ee sel f-ass ess ments, Nu cl ear Ov ersi ght (NOS) au di ts, o pera tin g ex peri enc e re ports an d h uman pe rf ormanc e ini t iat ives to det er m ine if pr ob lem s wer e be ing ide nt if ied and ent er ed int o t he co r r ec t ive acti on program (C AP) at the prop er th resh ol CA P imp le mentati on, metric s, a nd st a tu s, a n d d e p a rt me n ta l p e rfor ma n ce i n d i ca to rs w e re a l so r e v i e w e d a n d d i sc u ss e d w i th t h e s t a t i o n s t a ff.The i nsp ecto rs a ls o re v ie w ed proc edu res, in spe cti on repo rts, a nd corre cti v e a cti on doc umen ts to v eri f y tha t i den tifie d i ssu es w ere app ropri atel y ch arac teri z ed and pri ori tiz ed in the C A E v al uati ons do cumen ted in co ndi tio n re ports (C Rs) or i ssu e re p o rt s (I R s) w e re e v a l u a te d for a p p ro p ri a te n e ss o f de p th a n d t h o ro u ghn e ss r e l a ti v e t o the si gnifica nce or pote nti al i mpact of each i ssu Insp ecto rs a ttend ed mana gement m ee t ing s t o ob se r ve t he as si g nm en t of CR ca t eg or ies f or cu r r en t iss ue s a nd to obs er ve the rev ie w of roo t, ap pare nt, a nd common cau se ana ly ses , an d c orrec tiv e a cti ons for e x i st i n g C R s. In a ddi tio n, th e i nsp ecto rs re v ie w ed pas t i nsp ecti on resu lts , se le cted C Rs and IR s, ro ot cau se repo rts, a nd common cau se ev al uati ons to v eri f y tha t co rrecti v e a cti ons , commens urate w ith the sa f ety si gnifica nce of the i ssu es, w ere spe ci f ie d a nd imp le mented i n a ti mel y man ne The in spe ctors ev al uate d th e e f f ecti v ene ss of corre cti v e a cti on The i nsp ecto rs a ls o re v ie w ed the li cen see's co rrecti v e a cti ons for N C V s d o cu me n te d i n N R C i n sp e ct i o n r e p o rt s i n t h e p a st 2 y e a r (2)

A sse ssmen tIden tifica tio n o f Iss uesThe i nsp ecto rs c onc lu ded , i n gen eral , tha t the sta tio n i den tifie d i ssu es and en tered the m in to th e C AP at the app ropri ate le v e The i nsp ecto rs' rev ie w of op erati ng ex peri enc e re p o rt s i d e n ti fie d t h a t th e l i ce n se e w a s a p p ro p ri a te l y i n cl u d i n g th e i ss u e s i n to t h e C A P. T he lice ns ee has als o us ed th e CA P t o do cu m en t ins t an ce s whe r e pr evio us co r r ec t ive a ct i o n s w e re i n e ff e ct i v e o r w e re i n a p p ro p ri a te l y c l o se d. The l ic ens ee performed Co mmon C aus e A nal y si s (C CA) 51 270 2-02 i n re spo nse to f our sta tion event f ree clock reset ev ents that occur red over a 5 mont h perio T he CCA ev al uati on peri od w as Jan uary 1, 200 6, th rough Jul y 31 , 20 0 The CC A w as di recte d by the pl ant mana ger to id enti f y the un derl y in g human pe rf ormanc e a spe cts of the f our 4 En cl osu re stati on ev ent f ree cl ock res et e v ents an d th e b al anc e o f hu man performance i ssu es that hav e o ccu rred in the first 7 mon ths of 200 The C CA w as al so cha rtered to lo ok f or any un derl y in g la tent organi z ati ona l w eaknes ses tha t may ha v e s et th e s tage for the unacc epta ble lev el of human perf orm ance event T he CCA employed mu ltiple i n v e st i gat i v e t o o l s a n d a c ro ss-d e p a rt me n ta l t e a m t h a t i n cl u d e d c o rp o ra te a n d i n d u st ry parti ci pan t The C CA i den tifie d tw o c ommon cau ses an d tw o o rgani z ati ona l w eaknes se The tw o c ommon cau ses w ere: 1) the misi nterp retati on of and pe rcei v ed re qui re me n ts o f l e v e l 3 "re fere n ce u se" p ro ce d u re s, a n d 2) h u ma n p e rfor ma n ce e v e n ts w ere occ urri ng i n a ll are as, cros si ng pl ant ope rati ng con di tio ns, w ork groups and empl oy ee le v el The tw o o rgani z ati ona l w eaknes ses w ere: 1) ov ersi ght an d mana gement c hal le nges a lo ng w ith co di ng i ssu es f or tre ndi ng an d p redi cti v e a cti ons , and 2) huma n p erformance ev ents w ere not "emoti ona l" to th e s it A t se v eral M ana gement R ev ie w C ommitte e (M RC) mee tin gs, the in spe ctors obs erv ed the members' se nsi tiv ity to id enti f y an y i ssu es that cou ld be pro ced ure adh eren ce rel ated f rom the rev ie w of ap pare nt c aus e, C CA , or root cau se in v esti gatio n re port F or o ne app aren t ca use , the M RC co ncl ude d th at th e c aus e w as proc edu re a dhe renc e a nd di recte d th at th e i nv esti gatio n b e u pda ted to a ddre ss proc edu re a dhe renc The reas ons for thi s d ire cti on w ere to d ocu ment proc edu re a dhe renc e a ppl ic abi li ty an d hei ghten staff aw aren ess of stati on huma n p erformance is sue In a ddi tio n, th e in spe ctors atten ded tw o re v ie w/cha ll enge boa rd me eti ngs he ld on a root cau se in v esti gatio n a nd a C C The rev ie w/cha ll enge boa rd i ni tia tiv e w as a c orrec tiv e a cti on i mp l e me n te d for t h e o rga n i z a ti o n a l w e a kne ss o f ov e rs i ght a n d ma n a gem e n t ch a l l e n ge. At eac h me eti ng, an ap prop ria te l ev el of cha ll enge w as off ered to the pres ente r of the in v esti gatio The re v ie w/cha ll enge boa rd e v al uate d th e a li gnment o f the pro pos ed cor rec tive action w ith the caus es that w ere det erm ine T he review/ch alleng e board is conduc ted pr ior to select ed inv est iga tive report s being presen ted f or M RC approval.

An ex panded 5 year review w as conduc ted by the inspecto rs on st ation elect rical cable is sue The i ni tia l sco pe of the li cen see's se arch of the co rrecti v e a cti on program data bas e for a 5-y ear peri od w as app rox ima tel y 12 00 is sue rep ort F rom the in spe ctors' sc reen in g, app rox ima tel y 15 0 i ssu e re ports w ere sel ecte d for further rev ie w and su bdi v id ed in to s pec ific cate gorie Through th e i nsp ecto rs' rev ie w of the sc reen ed is sue rep ort c ategori es and di scu ssi on w ith l ic ens ee engi nee rs, a ppro x ima tel y 20 i ssu e repo rts w ere sel ecte The i ssu e s tatemen t tha t w as dev el ope d for th e re v ie w w as, el ectro-hy drau li c c ontro l (EH C) f lu id i ntrus io n, p rima ril y i nto the Un it 2 c abl e tu nne l, and the sub sequen t E HC flui d mi gratio n i nto v ari ous ca bl e tra y s a nd onto po w er c abl es.In Apr il 2002, the licensee identif ied conditions thr oug h IR 102044 assoc iated w ith EHC f lu id mi gratio n i nto the Un it 2 c abl e tu nne In Se ptembe r 20 02, EH C f lu id w as id enti f ie d throu gh IR 122 749 as be in g prese nt i n th e U ni t 2 cab le tun nel , i n c abl e tra y s a nd on cab le s l y in g w ith in tho se tray The l ic ens ee id enti f ie d th e i ntrus io n p athw ay as see page throu gh con crete de f ects and ce il in g cracks w ith in the U ni t 2 cab le tun ne The p ro p o se d r e so l u ti o n s w e re i n st a l l a ti o n o f dr i p p a n s a n d/o r u se o f a se a l i n g me th o d t o repa ir the cei li ng crac k The li cen see ad dres sed the po tenti al aff ects of EH C f lu id on cab le s, a nd id enti f ie d th at th e E HC flui d c oul d s ev erel y de grade cab le i nsu la tio n o v er tim E le ctri c c abl es, suc h a s th ose i nsta ll ed at th e s tati on, are ty pi cal ly man ufactured w ith oute r pro tec tive jack et cover T he outer jack ets are mor e suscept ible to EHC f luid deg rada tion and w ere ident if ied as being deg rade d in a numb er of stat ion incident All but the most re cen tly i den tifie d d amaged oute r ca bl e ja ckets h av e b een rep ai re The 5 En cl osu re li cen see ha d i mpl emen ted a y earl y ca bl e tu nne l in spe cti on pred efine ac tiv ity 16 631 2-01 to mo ni tor for ad di tio nal ca bl e ja cket de teri orati on and oth er p oten tia l degrad ed con di tio ns ass oci ated w ith E HC flui d i ntrus io n.In J anu ary 20 03, an EH C f lu id l eak oc curre d a bov e th e U ni t 2 turbi ne bui ld in g 595'el ev ati on that w as id enti f ie d th rough IR 139 98 The l ic ens ee questi one d th e p oten tia l lo ng-term eff ect of EH C f lu id on equi pmen t an d s tructu re The li cen see ev al uate d th at there w as no degrad ati on of conc rete or s tructu ral ste el from EH C f lu id ex pos ur The i n sp e ct o rs c o n cl u d e d t h a t i n Oc to b e r 2 0 0 4 , th e l i ce n se e a u gme n te d t h e i r foc u s to res olv e EHC f luid l eak s, and r e-an aly ze the ef f ect of EHC f luid on cable Additional IRs w e re ge n e ra te d t o fur th e r i d e n ti fy a re a s o f E H C fl u i d i n tr u si o n a n d i n i ti a te w o rk o rd e rs t o a d d re ss i n tr u si o n s i te s a n d c a b l e ja cke t re p a i r N o E H C fl u i d w a s fou n d t o h a v e c o me in di rect con tact w ith the ca bl e i nsu la tio There w as no degrad ati on id enti f ie d b ey ond the prote cti v e o uter jacket mate ria l arou nd any of the aff ecte d c abl es.The l ic ens ee has i ncre ase d th e frequenc y for cab le tun nel i nsp ecti on pred efine 166 312-01 to qua rterl y thro ugh se rv ic e re quest 4 852 In s ubs equen t l ic ens ee in spe cti ons , ad di tio nal i ntrus io n o r se epa ge i nto cab le tray s a nd/o r on to c abl es has be en id enti f ie IRs w ere promptl y i ni tia ted to c orrec t the de f ic ie nt c ond iti ons i den tifie d b y the inspect ion In addition, the licensee has ma de the neces sar y cable repair s in a tim ely mann e The i nsp ecto rs v eri f ie d th at th e l ic ens ee's c abl e re pai rs a nd dri p p an in stal la tio ns w ere compl eted as do cumen ted duri ng stati on w al kdow ns.Pri ori tiz ati on and E v al uati on of Issue sThe i nsp ecto rs' ob serv ati ons of the S tati on Ow ners hi p C ommitte e (S OC) c onc lu ded tha t f or s ome IRs, add iti ona l f ol lo w-up acti v iti es w ere ass igne d th at e x tend ed the time pe rio d f or i ssu e d is pos iti on w ith in the organ iz ati o N one of the i ssu es that w ere ass igne d th e a d d i ti o n a l fol l o w-u p r e su l te d i n a n i n a p p ro p ri a te p ri o ri ti z a ti o n b a se d o n s i gni fic a n ce. Ex ampl es of SOC acti on taken w ere to a ssi gn w ork requests , ev al uati ons , an d/or cor rec tive action to specif ic depart me ntal g roup T he inspect ors observed the M RC fun ct i o n i n a n o v e rs i ght r o l e o f th e S O F o r e x a mp l e , th e M R C c h a n ged t h e S OC reco mmende d a cti on of some is sue s b ase d o n c ommitte e d ia lo gue a nd add iti ona l sta tion aw aren ess of the issu T he M RC perf orm ed g rading of inv est iga tive C AP p ro d u ct s to p ro v i d e fee d b a ck o n p ro d u ct qu a l i ty t o t h e s p o n so ri n g ma n a ger. The IR s th at w ere obs erv ed bei ng rev ie w ed by the S OC w ere al so obs erv ed bei ng re v i e w e d b y t h e M R C i n t h e i r o v e rs i ght r o l B o th o f th e c o mmi tt e e s fun ct i o n e d w e l l t o app ropri atel y ch arac teri z e a nd pri ori tiz e i ssu es in the C A The M RC membe r di al ogue in the rev ie w of roo t, ap pare nt, a nd common cau ses w as in f ormati v e, a nd prov id ed f eed bac k to the sta f f on i mpl emen tin g the CA The in spe ctors con cl ude d th at i ssu es w ere pr oper ly prioritized and gen erally evaluated w ell.Eff ecti v ene ss of Corre cti v e A cti on In gen eral , the l ic ens ee corre cti v e a cti ons for the sa mpl es rev ie w ed w ere app ropri ate, and ap pea red to h av e b een eff ecti v The i nsp ecto rs d etermi ned tha t the l ic ens ee genera ted IRs w hen a corre cti v e a cti on w as id enti f ie d w hi ch w as ei ther in ade quate or ina pp r op r iat Ho wever , th e in sp ec t or s d eve lop ed obs er vat ion s r eg ar din g co r r ec t ive 6 En cl osu re a ct i o n s th a t w e re n o t p ro p e rl y s u p p o rt e d b y t h e d o cu me n te d b a si s o r n a rr o w l y foc u se d. The foll ow in g para graphs prov id e e x ampl es of these ob serv ati ons.Imprope r V al v e L in e-up R esu lts i n 1 A RH RS W H ead er L eakT he ins pe ct or s n ot ed th at f or th e c or r ec t ive ac t ion s f or IR 261 13 5, "I m pr op er Val ve Li ne-u p R esu lts i n 1 A RH RS W H ead er L eak," a numb er o f ex tens io ns w ere prop ose d w ith no do cumen ted bas i The i nsp ecto rs s ubs equen tly de termin ed that the ex tens io ns w ere app ropri ate, how ev er, th e l ack of doc umen tati on made the ba si s for de ci si on ma k ing dif f icult to under sta n In addition, the inspect ors identif ied that li tt le doc umen tati on ex is ted w hen on e o f the co rrecti v e a cti ons to prev ent recu rrenc e w as can cel e The corre cti v e a cti on in v ol v ed a c han ge to proc edu re OP-M W-109-101 ,"Cl eara nce an d Tagging." A gain the ac tio ns w ere app ropri ate, how ev er, th e l ack of doc umen tati on made the ba si s for de ci si on making di f f ic ul t to di sce rn.Code Case N-513 Req uires Full Ci rcu mf eren tial NDEThe i nsp ecto rs n oted tha t the co rrecti v e a cti ons to prev ent recu rrenc e, re quested by the S OC , for IR 3 6 9 7 6 0 , "C o d e C a se N-5 1 3 R e qui re s F u l l C i rc u mfer e n ti a l N D E ," w e re narro w ly focuse The l ic ens ee con si dere d th e i ssu e a hu man performance ci r cu m st an ce , sh ar ed th e exa m ple w it h t he eng ine er ing st af f , and f oc us ed th e c or r ec t ive acti on on the misa ppl ic ati on of the parti cul ar c ode ca se (N-513). The l ic ens ee di d n ot p r o v i d e a m o r e g e n e r a l v i e w o f m i s a p p l i c a t i o n o f N D E c o d e s w i t h t h e e n g i n e e r i n g s t a ff.Ba ttery R oom He ater Ba ckupIR 433852, "Batt ery Room HVAC Concerns Provi ded By NRC," identif ied that port able pan he aters w ere curre ntl y sta ged i n th e b attery roo ms i n th e e v ent that batte ry roo m tempera ture app roac hes the 65 de gree F l imi The sta tio n h ad not y et e mpl oy ed the use of the se porta bl e p an hea ters to c ontro l batte ry roo m tempe ratur The i nsp ecto rs'rev ie w of QCOP 001 0-02 , "R equi red Co ld W eath er R outi nes ," rev eal ed that the stati on di d n ot c ons id er w hat w oul d o ccu r from the use of a resi stan ce hea ter i n th e p oten tia l pres enc e o f hy droge The l ic ens ee genera ted IR 568 479 to cl ari f y QCOP 00 10-0 (3)

Fi ndi ng Fai lu re to D ev el op Co rrecti v e A cti onInt rodu ction: T he inspect ors identif ied a Green NCV of 10 CFR Part 50, Appendix B, C ri te ri o n XV I, "C o rr e ct i v e A ct i o n ," for fai l u re t o a ss u re t h a t co n d i ti o n s a d v e rs e t o qu a l i ty w ere promptl y co rrecte Sp eci f ic al ly , the i nsp ecto rs c onc lu ded tha t the l ic ens ee f ai le d to d ev el op acti ons to corre ct c ond iti ons ad v erse to qual ity i den tifie d d uri ng roo t ca use in v esti gatio n a cti v iti es f or a U ni t 1 stan dby l iqui d c ontro l tank l eak i den tifie d i n Octo ber 200 6.Back g roun d: On O cto ber 12, 2006, Q uad Cities Stat ion staf f identif ied a small l eak in the Un it 1 s tand by l iqui d c ontro l (SL C) tank w hi ch resu lte d i n b oth SL C trai ns bei ng dec la red in ope rabl Quad Ci tie s re quested en f orce ment di scre tio n for th is i ssu e w hi ch w as v erba ll y grante d b y the N RC on Octob er 1 3, 2 006 , an d a formal No tic e o f 7 En cl osu re En f orce ment Di scre tio n (N OED) w as is sue d o n Octo ber 18, 200 The l eak w as r e p a i r e d b y O c t o b e r 1 5 , 2 0 0 D u r i n g t h e d i s c u s s i o n s f o r t h e N O E D , Q u a d C i t i e s s t a ff note d th at p oten tia l in di cati ons of the l eak ha d b een i den tifie d i n 2 004 , bu t the in di cati ons w ere not reco gniz ed as a l eak thro ugh a n A meri can S oci ety of M ech ani cal En gine ers (AS M E) Co de Cl ass 2 bou nda ry un til Octob er 2 00 The l ic ens ee con duc ted a ro ot c aus e i nv esti gatio n o f thi s i ssu e.De scri pti on: The in spe ctors rev ie w ed root cau se in v esti gatio n re port 543 422-05,"Stan dby Li quid C ontro l Un it 1 D ecl ared Ino pera bl e D ue to Thro ugh W al l Lea k," da ted No v embe r 20 , 20 06, to d etermi ne if the l ic ens ee f ul ly ev al uate d a nd corre cted the ca u se s w h i ch l e d t o t h e i n o p e ra b i l i ty o f th e U n i t 1 S L C t a n k for a p p ro x i ma te l y 2.5 y e a rs. The p rima ry sc ope of thi s ro ot c aus e i nv esti gatio n focus ed on the programmati c a nd tech ni cal i ssu es rel ated to the ori gin of the SL C tank l eak i den tifie d i n IR 54 342 2 in iti ated i n Octo ber 200 The s cop e o f the i nv esti gatio n a ls o i ncl ude d IR 22 413 1,"Bo ron Cry stal s F ormi ng Ne ar U ni t 1 SL C Tank Bas e S upp ort," i ni tia ted in M ay 20 04, and a dete rmin ati on of w hat programmati c re v ie w s c oul d h av e i den tifie d th is co ndi tio n earl ie r i ncl udi ng w hy the se rev ie w s fail ed.The l i ce n se e c o n cl u d e d t h a t th e p ro gra mma ti c ro o t ca u se for t h e i n co rr e ct o p e ra b i l i ty dete rmin ati on of the Un it 1 S LC tan k le ak w as an in compl ete app li cati on of techn ic al rigor resu lti ng i n i nco rrect ass umpti ons regard in g the AS M E cod e a ppl ic abi li ty to the Un it 1 S LC tan These i nco rrect ass umpti ons w ere not ade quatel y ch al le nged duri ng the con di tio n i den tifica tio n a nd rev ie w pro ces The l ic ens ee al so con cl ude d th at th e tech ni cal roo t ca use of the U ni t 1 SL C tank l eak w as the grout mate ria l use d d uri ng ori gina l in stal la tio n o f the S LC tan k supp orts con tai ned l eac hab le ha lo gens, th at w hen w etted , al lo w ed stress co rrosi on crac king to dev el op at th e grou t/tank i nterface.The ro ot c aus e i nv esti gatio n re port w as "app rov ed as amen ded" at PORC mee tin g 0 6-3 3 o n D e ce mb e r 1 , 2 0 0 Th e i n sp e ct o rs' r e v i e w o f ro o t ca u se i n v e st i gat i o n r e p o rt 5 4 3 4 2 2-0 5 w a s co mp l e te d a fter P OR C a p p ro v a l , a n d a l so a fter a n E x e l o n c o rp o ra te challeng e had been hel The inspec tor s concluded t hat t he licensee did not f ully ev al uate se v eral co ndi tio ns adv erse to qual ity tha t w ere id enti f ie d d uri ng the inv est iga tio T he licensee's decision to not f ully ev aluate t hese condit ions result ed in the f ai lu re to de v el op app ropri ate corre cti v e a cti on The i den tifie d c ond iti ons w ere as f ol lo w s:Fun dame ntal P racti ce of Not Va li dati ng As sumpti onsAl thou gh the roo t ca use tea m con si dere d th is as pa rt of tech ni cal ri gor, the team f ai le d to e v a l u a te a n d d e v e l o p c o rr e ct i v e a ct i o n s for th e b e h a v i o rs t h a t l e d t o fai l u re t o v a l i d a te th e a ss u mp ti o n t h a t th e t a n k w a s n o t a c o d e c o mp o n e n t d u ri n g th e p ro mp t o p e ra b i l i ty proc es The v al id ati on of assu mpti ons du rin g the prompt ope rabi li ty pro ces s i s c riti cal to e nsu rin g conti nue d p la nt s afety an d th e e f f ecti v ene ss of the corre cti v e a cti on p ro gra En cl osu reSh ift M ana ger Ina ppro pri ate Acti onThe i nv esti gatio n focus ed on the shi f t man ager w ho in app ropri atel y de cl ared the S LC tank op erab le i n M ay 20 04 rathe r tha n e v al uati ng the i mpl emen tati on of the prompt ope rabi li ty pro ces s b y al l shi f t man ager As suc h, th e l ic ens ee di d n ot ful ly de termin e the ex tent of cond iti on of in app ropri ate ope rabi li ty de termin ati ons us in g the prompt ope rabi li ty pro ces Be cau se the li cen see di d n ot ful ly an al y z e th e i mpl emen tati on of t h i s p r o c e s s b y t h e e n d u s e r s (t h e s h i ft m a n a g e r s), t h e l i c e n s e e w a s u n a b l e t o i d e n t i fy and co rrect pote nti al pro bl ems i n th is are a.S h i ft M a n a ger R e co mme n d a ti o n R e su l ts i n "C" P ri o ri ty W o rkThe ro ot c aus e i nv esti gatio n re port id enti f ie d th at th e s hi f t man ager re commend ed add iti ona l ND E to b e p erformed d uri ng the ne x t w ork w eek as pa rt of hi s M ay 20 04 ope rabi li ty rev ie w of IR 224 13 The roo t ca use i nv esti gatio n re port al so id enti f ie d th at the ND E rel ated w ork orde r w as sti ll i n p la nni ng as of October 200 Ho w ev er, n o ev al uati on w as prov id ed as to w heth er th e d eci si on to n ot p erform the w ork requeste d by the sh ift mana ger w as app ropri at In add iti on, there w as no ev al uati on regardi ng the proc ess us ed in de termin in g that the w ork reco mmende d b y the sh ift mana ger w as n o t n e e d e d. Sy stem E ngin eer De ci si on After Co mmuni cati ng W ith D resd en Pe erDu rin g conv ersa tio ns on Octobe r 11 , 20 06, the Dre sde n s y stem e ngin eer di scu sse d w ith the Qua d C iti es sy stem e ngin eer that the SL C tank may be an A SM E Cl ass 2 sy stem b oun dar The fact tha t the S LC tan k le akage comp romi sed an A SM E Co de Cl ass 2 bou nda ry w as not id enti f ie d b y the Qua d C iti es sy stem e ngin eer unti l the f ol lo w in g day , Octob er 1 2, 2 00 The roo t ca use i nv esti gatio n d ev el ope d a ti me l in e o f ev ents tha t de scri bed the co mmuni cati ons tha t oc curre d b etw een the Qua d C iti es and Dre sde n s y stem e ngin eer The i nsp ecto rs d is cus sed w ith the Qua d C iti es engi nee r the inf orm ation th at was exchang ed and the rea sons f or not pursuing any action the nig ht it w as prov id e The Quad Ci tie s s y stem e ngin eer prov id ed tw o re aso ns f or n ot p ursu in g t he co de re lat ed inf or m at io Fir st , he b eli eve d t ha t th e SL C sys t em w ou ld h ave performed its functi on duri ng an A TW S ev en S eco nd, he bel ie v ed that there w as a v ery l ow pro bab il ity tha t the D resd en sy stem e ngin eer w as corre ct re gardi ng the fact th a t th e S L C t a n k w a s a c o d e c o mp o n e n The r o o t ca u se i n v e st i gat i o n d i d n o t e v a l u a te the sy stem e ngin eer's d eci si on to d etermi ne w heth er o r no t i t w as app ropri ate.Ch apte r 16 of the l ic ens ee's Qua li ty A ssu ranc e Top ic al R epo rt de f in ed con di tio ns adv erse to qual ity as fail ures , mal f unc tio ns, adv erse tren ds, defici enc ie s, d ev ia tio ns, defecti v e ma teri al , de si gn erro rs, e quip ment, a nd non con f ormanc e to sp eci f ie d requi rement B ase d u pon the ex ampl es prov id ed in the l ic ens ee's Top ic al R epo rt, the in spe ctors con cl ude d th at th e d efici enc ie s i n th e ro ot c aus e e v al uati on proc ess di scu sse d a bov e c ons titu ted a fai lu re to pro perl y ev al uate an d re sol v e i den tifie d de f ic ien ci e T his iss ue w as det er m ine d t o be a pe r f or m an ce def ic ien c En cl osu reAn al y si s: The i nsp ecto rs c onc lu ded tha t the pe rf ormanc e d efici enc y w as more than minor because if lef t uncor rec ted, f utur e conditions adverse to q uality w ould not be f ully ev al uate d o r co rrecte The i nsp ecto rs re v ie w ed Ap pen di x B to Insp ecti on M anu al Ch apte r 06 12 and de termin ed that thi s find in g w as requi red to b e e v al uate d b y the S i gni fic a n ce D e te rmi n a ti o n P ro ce ss d u e t o i ts i mp a ct o n t h e M i ti gat i n g S y st e ms C o r n e r s t o n e o b j e c t i v e o f e n s u r i n g t h e o p e r a b i l i t y , a v a i l a b i l i t y , r e l i a b i l i t y , o r f u n c t i o n o f a sy stem th at re spo nds to in iti ati ng ev ents to prev ent und esi rabl e c ons equen ce The in spe ctors ass ess ed the si gnifica nce of thi s find in g as v ery l ow sa f ety si gnifica nce (Green) bec aus e th e fin di ng di d n ot re pres ent an actu al l oss of safety functi on of the SL C tan Thi s find in g had a cros s-cu ttin g aspe ct i n th e a rea of prob le m i den tifica tio n and res ol uti on bec aus e th e l ic ens ee f ai le d to tho roughl y ev al uate co ndi tio ns id enti f ie d d u ri n g i ts r o o t ca u se i n v e st i gat i o n for t h e S L C t a n k l e a kage w h i ch r e su l te d i n t h e fai l u re to d ev el op app ropri ate corre cti v e a cti ons.Enf orc em ent: 10 CFR Part 50, Appendix B, Criter ion XVI , "Cor rec tive A ction," st ates , in p a rt , me a su re s sh a l l b e e st a b l i sh e d t o a ss u re t h a t co n d i ti o n s a d v e rs e t o qu a l i ty a re prom ptly i dent if ied and corr ect e Contr ary to the above, the licensee f ailed to prom ptly co rr e ct s e v e ra l d e fic i e n ci e s i d e n ti fie d i n r o o t ca u se i n v e st i gat i o n r e p o rt 5 4 3 4 2 2-0 5. B e ca u se t h i s fai l u re t o c o mp l y w i th 1 0 C F R P a rt 5 0 , A p p e n d i x B , C ri te ri o n XV I, i s o f v e ry lo w sa f ety si gnifica nce an d h as bee n e ntere d i nto the li cen see's co rrecti v e a cti on p ro gra m a s IR 5 6 9 5 8 1 , th i s v i o l a ti o n i s b e i n g tr e a te d a s a n N C V , co n si st e n t w i th Se ct ion VI.A of th e En f or ce m en t Pol ic y (NC V 050 002 54/2 006 017-01;050 002 65/2 006 017-01). C orrec tiv e a cti ons for thi s N CV i ncl ude l ic ens ee rev ie w of the NR C is sue s a nd the root cau se in v esti gatio n re port, and a dete rmin ati on as to w heth er to re v is e th e ro ot c aus e i nv esti gatio The l ic ens ee sub sequen tly pre pare d a sup pl emen t to the root cau se in v esti gatio n re por In add iti on, the corre cti v e a cti on program w il l rev ie w thi s N CV for l ess ons l earn e b.

Ass ess ment of the Use of Opera tin g Ex peri enc e (1)

Insp ecti on Sco peThe i nsp ecto rs re v ie w ed the li cen see's pro gram f or h and li ng op erati ng ex peri enc e (OPEX). Sp eci f ic al ly , the i nsp ecto rs re v ie w ed the imp le menti ng pro ced ure, atten ded cor rec tive action prog ram meet ing s to obser ve the use of OPEX , review ed OPEX evaluated by the st ation and review ed selecte d 2006 mont hly assessm ents of the OPEX co mp o si te p e rfor ma n ce i n d i ca to rs. The i nsp ecto rs c ond ucte d a N RC OPE X sea rch on EH C ev ents res ul tin g in the col le cti on and rev ie w of IE Ci rcul ar N o. 7 7-06 , "E f f ects of Hy drau li c F lu id on E le ctri cal Ca bl es," li cen see ev ent repo rts, i nsp ecti on repo rt find in gs and i ntern ati ona l in ci den t re p o rt In a d d i ti o n , v e n d o r i n form a ti o n w a s u se d t o s u p p o rt t h e r e v i e w o f st a ti o n I R (2)

Ass ess mentNo find in gs of si gnifica nce w ere id enti f ie En cl osu reIn ge n e ra l , OP E X i n form a ti o n w a s b e i n g w e l l u ti l i z e d a t th e s ta ti o Th e i n sp e ct o rs obs erv ed that Ex el on f le et i ntern al an d i ndu stry OPE X on sev eral oc cas io ns w as di scu sse d b y S OC a nd M RC membe rs to su ppo rt rev ie w ac tiv iti es and co rrecti v e a cti on program i nv esti gatio n D uri ng l ic ens ee staff i nterv ie w s, th e i nsp ecto rs i den tifie d th at the use OPE X w as bei ng con si der duri ng da il y ac tiv iti es.T he licensee perf orm ed Nuclear O versig ht (NO S) Audit NO SA-Q DC-05-01 of the CAP in M ay 20 0 The aud it w as performed to me et th e a udi t requi rements of 10 C FR Pa rt 50 , A ppe ndi x B , an d th e E x el on/A merGen Qual ity A ssu ranc e Top ic al R epo r The audit te am incorpor ated industr y OPEX by revi ew ing issues that hav e been recen tly i d e n ti fie d a s a r e su l t o f N R C p ro b l e m i d e n ti fic a ti o n a n d r e so l u ti o n i n sp e ct i o n In add iti on, f le et-w id e i ssu es id enti f ie d b y au di ts a t oth er E x el on si tes (i.e., l ess ons l earn ed OPEX), re sul ted in fiv e c ommon defici enc ie s a nd f iv e c ommon enh anc emen ts b ei ng i d e n ti fie d d u ri n g th i s a u d i t. Ho w ev er, th e i nsp ecto rs d ev el ope d o bse rv ati ons regard in g some OPEX th at w as not rev ie w ed or p rope rly sc reen ed f or a ppl ic abi li t The foll ow in g para graphs prov id e ex ampl es of these ob serv ati ons.IE C i rc u l a r N o. 7 7-0 6 , "E ff e ct s o f H y d ra u l i c F l u i d o n E l e ct ri ca l C a b l e s" The N RC Of f ic e o f Ins pec tio n a nd En f orce ment doc umen t, IE Ci rcul ar N o. 7 7-06 ,"Eff ects of Hy drau li c F lu id on E le ctri cal C abl es," is sue d i n A pri l 197 7, a dv is ed li cen see s of the pote nti al aff ects of EH C Fl ui d w hen i n c onta ct w ith sp eci f ic ty pes of i nsu la ted el ectri cal ca bl e The IE Ci rcul ar s temmed f rom d etai le d c orres pon den ce f rom the l i ce n se e t o t h e N R C i n A p ri l 1 9 7 6 i n r e sp o n se t o N R C I n sp e ct i o n R e p o rt No. 05 0-26 5/76-0 The repo rt de scri bed i n d etai l the migrati on of EH C f lu id to the U n i t 2 C a b l e Tu n n e l a n d o n to e l e ct ri ca l c a b l e s th a t w e re l o ca te d w i th i n t h e c a b l e t ra y s. The re port al so des cri bed ac tual de gradati on of nucl ear in strumen tati on cab le s a nd the resu lta nt c abl e s pl ic e re pai r The E HC flui d ma nufacture rs th at w ere con sul ted state d th a t ca b l e s ja cke te d w i th P o l y v i n y l ch l o ri d e (P V C) w e re s e v e re l y a ff e ct e d b y E H C fl u i d. Therefore, su ch cab le s w ere not reco mmende d for u se arou nd EH C f lu i If the stati on st af f w ou ld h ave co nd uc t ed a re view of th is IE Cir cu lar in 20 02 , th e s t at ion w ou ld h ave g ained a v aluable histor ical perspec tive fr om their own OPEX inf orm atio T his w ould hav e s upp orted a more in f ormed reco gniti on and res pon se to E HC flui d i ntrus io n ev ents.C o rr e ct i v e A ct i o n P ro gra m I n v e st i gat i o n OP E X A p p l i ca b i l i ty The i nsp ecto rs re v ie w ed the use of OPE X in roo t ca use i nv esti gatio n re port 543 422-05,"S ta n d b y L i qui d C o n tr o l U n i t 1 D e cl a re d I n o p e ra b l e D u e t o Th ro u gh W a l l L e a k." Th e re w ere t w o NRC f inding s repor ted dur ing 2005 that w ere discou nted as being applicable duri ng the roo t ca use i nv esti gatio The first w as the misa ppl ic ati on of an AS M E cod e cas e i n e v al uati ng a RH RS W pu mp th rough w al l pi pi ng l ea Thi s w as di sco unte d bec aus e th e e v ent in v ol v ed AS M E Cl ass 3 pi pi ng i nste ad of ASM E Cl ass The sec ond w as the f ai lu re to do cumen t as sumpti ons an d e ngin eeri ng judgment as part of an ope rabi li ty ev al uati o Thi s w as di sco unte d b eca use the ev ent doc umen ted a d efici enc y that occ urred on an op erab il ity ev al uati on rathe r tha n a pro mpt o pera bi li ty de ci si o The 11 En cl osu re dec is io ns made to di sco unt the NR C 200 5 fin di ngs w ere narro w ly focuse d, a nd resu lte d in the fail ure to e v al uate sta tio n OP EX to id enti f y ba rrie rs th at c oul d i mpact prompt o p e ra b i l i ty d e ci si o n s. A ss e ss me n t o f S e l f-A ss e ss me n ts a n d A u d i ts (1) Insp ecti on Sco pe T h e i n s p e c t o r s r e v i e w e d s e l e c t e d f o c u s e d a r e a s e l f-a s s e s s m e n t s (F A S A), c h e c k-i n s e l f-a s s e s s me n t s a n d N OS a u d i t s o f t h e c o r r e c t i v e a c t i o n p r o gr a m, e n gi n e e r i n g d e s i gn con trol , mai nten anc e a nd engi nee rin g program The i nsp ecto rs e v al uate d w heth er thes e a udi ts w ere bei ng eff ecti v el y man aged, w ere ade quatel y co v eri ng the su bject area s, a nd w ere prop erl y ca pturi ng i den tifie d i ssu es in the C A In ad di tio n, th e in spe ctors al so in terv ie w ed li cen see sta f f regard in g the imp le mentati on of the aud it and sel f-ass ess ment programs.(2) Ass ess ment No find in gs of si gnifica nce w ere id enti f ie d.T he inspect ors concluded tha t the self-as sess me nts and NOS audits w ere g ener ally cri tic al an d p robi n Outsi de reso urce s w ere uti li z ed, w hen ap prop ria te, to gai n a n i n d e p e n d e n t p e rs p e ct i v e a n d t o i n cl u d e n o n-s i te OP E X i n t h e p ro ce ss r e v i e Th e re w ere a n umbe r of de f ic ie nci es, reco mmenda tio ns and stre ngths i den tifie d a cros s th e spect rum of perf orm ance, including issues of improp er CAP implem enta tio As app ropri ate, the sel f-ass ess ment and N OS a udi t de f ic ie nci es w ere doc umen ted in the C A P. The l i ce n se e p e rfor me d C h e ck-In S e l f-A ss e ss me n t 3 2 8 9 4 6 , "C o rr e ct i v e A ct i o n C l o su re Re v ie w ," i n M ay 20 0 The sel f-ass ess ment con duc ted a re v ie w of 33 co rrecti v e a cti ons (CA) ou t of a total of 34 3 C As that w ere compl eted i n Octo ber or N ov embe r 20 0 The CA s w ere rev ie w ed usi ng the cri teri a o f LS-AA-125 , "C orrec tiv e A cti on Pro gram Pro ced ure," Re v is io n The se lf-asse ssmen t de termin ed if the as si gnment w as ade quatel y w ritte n, i f the res pon se w oul d s tand al one , an d i f the cl osu re gui dan ce w as me S e v e n C A s w e re c o n si d e re d t o h a v e i n a d e qua te c l o su r Th e se i n a d e qua te closur es inv olv ed f our depa rt me nt Th e self-as sess me nt docu me nted the CA defici enc ie s i n th e C AP thro ugh IR 49 168 5.The l ic ens ee performed Ch eck-In S el f-Ass ess ment 445 362-03, "Operato r W orkaroun d Pro gram," in F ebru ary 20 0 Ov er th e p ast 3 y ears , the Qua d C iti es stati on had the hi ghest a v erage numb er o f op erato r w orkaroun ds (OW As) Ex el on f le et-w id The stati on imp le mented v ari ous stra tegie s to i mprov e OW A cl osu r In J une 20 03, the ex pec tati on w as esta bl is hed tha t IR s w oul d b e i ni tia ted any ti me a n OW A or o pera tor challeng e (O C) sched ule mileston e date w as extended or not me Th e numb er of IRs w ritt en f or extended or missed m ilestone dat es w ere 18 in 2003, 14 in 2004 and 5 in 200 The s el f-ass ess ment con cl ude d th at th e d ata sho w ed there ha d b een a sig nif icant incr ease in account ability f or m eeting scheduled com mit me nt dat es of OW As and OC En cl osu re A ss e ss me n t o f S a fety-C o n sc i o u s W o rk E n v i ro n me n t(1) Insp ecti on Sco pe The i nsp ecto rs i nterv ie w ed the Quad Ci tie s s tati on staff to dete rmin e i f the re w ere any imp edi ments to th e e stab li shmen t of a safety co nsc io us w ork env iro nmen In ad di tio n, the inspec tor s discusse d the implem enta tion of the Employee Concern s Prog ram (ECP)w ith the ECP Coordinat or Licensee pro g ram s to publiciz e the CAP and ECP pr og r am s wer e al so re viewe I n ad dit ion , FAS A 51 30 91 co nd uc t ed on t he co r r ec t ive acti on program i n Octo ber 200 6, w as rev ie w ed f or E CP i ssu es.(2) Ass ess ment No find in gs of si gnifica nce w ere id enti f ie d.T he ins pe ct or s d et er m ine d t ha t th e c on dit ion s a t th e Q ua d Cit ies st at ion w er e c on du ci ve to i den tify in g is sue The s taff w as aw are of and gene ral ly famil ia r w ith the C AP an d o th e r st a ti o n p ro ce ss e s, i n cl u d i n g th e E C P , th ro u gh w h i ch c o n ce rn s co u l d b e r a i se d. Sta f f i nterv ie w s i den tifie d th at i ssu es can be freel y co mmuni cate d to su perv is io n, a nd th a t se v e ra l o f th e i n d i v i d u a l s i n te rv i e w e d h a d p re v i o u sl y i n i ti a te d I R In a d d i ti o n , a review of the types of issues in the ECP indicated t hat sit e perso nnel w ere appr opriat ely usi ng the co rrecti v e a cti on and emp lo y ee con cern s p rograms to id enti f y i ssu e The i n sp e ct o rs i n te rv i e w e d t h e E C P C o o rd i n a to rs , a n d c o n cl u d e d t h a t th e i n d i v i d u a l s w e re f ocuse d on ensuring all site indiv iduals w ere aware of the prog ram , com preh ensive in thei r rev ie w of i ndi v id ual co nce rns, and us ed the corre cti v e a cti on and emp lo y ee con cern s p rograms to app ropri atel y res ol v e i ssu es.The c orrec tiv e a cti on program F AS A, 513 091 , i den tifie d a n E CP de f ic ie nc The spe ci f ic de f ic ie ncy w as that the communi cati on of the EC P nee ds to b e re f resh ed, part icularly am ong new eng ineer Th e li cense e ge nera ted I R 545057 to docum ent t his def icienc T he staf f identif ied that previously , a sig natu re line ex isted on the stat ion's o ri e n ta ti o n c h e ckl i st for a l l n e w l y h i re d e mp l o y e e s to me e t w i th a n E C P r e p re se n ta ti v e t o di scu ss the progra Ho w ev er, th e s tati on ado pted a corp orate gene rated ori enta tio n proc edu re w hi ch el imi nate d th e E CP si gnature li ne ite In N ov embe r 20 06, HR-AA-400 0, "E mpl oy ees E nteri ng Or Transferrin g W ith in N ucl ear Sta tio ns," w as rev is ed to i ncl ude a si gnature li ne on the empl oy ee che ckli st for the ne w hi re to mee t w i th a n E C P r e p re se n ta ti v A l o n g w i th t h i s co rr e ct i v e a ct i o n , th e E C P c o o rd i n a to rs a re con duc tin g f ace-to-face mee tin gs w ith ne w hi res, new i nformatio nal po sters hav e b een genera ted and di spl ay ed, EC P coo rdi nato rs a re c ond ucti ng group communi cati ons throu gh tai lgate mee tin gs, and ha v e a ls o s che dul ed a ta il gate mee tin g w ith the ne w e mp l o y e e s i n t h e e n gi n e e ri n g d e p a rt me n En cl osu re 4 OA 6 M a n a ge me n t M e e t i n gs E x i t M e e ti n g S u mma ry The i nsp ecto rs p rese nted the i nsp ecti on resu lts to M r. Gi deo n a nd othe r membe rs o f the staff at an ex it meeti ng on D ece mber 15, 200 M r. Gi deo n a cknow le dged the f in di ng pres ente d, a nd in di cate d th at n o p ropri etary i nformatio n w as prov id ed to th e i nsp ecto rs.A TTA C H M E N T: S U P P L E M E N TA L I N F OR M A TION 1 A tt a ch me n t PA RT IA L LIST OF PERSONS CONTA CT EDLi cen see C. Al guire , D esi gn En gine eri ng Su perv is or D. Ba rker, W ork M ana gement D ire ctor W. B eck, Re gula tory A ssu ranc e M ana ger D. Bo y le s, Ope rati ons S upp ort M ana ger M. B rid ges, S ite E ngin eeri ng D. Cra ddi ck, M ai nten anc e D ire ctor T. Fuh s, R egul atory A ssu ranc e J. Gen tz , N ucl ear Ov ersi ght R. Gid eon , P la nt M ana ger D. Ka ll enb ach , R adi ati on Pro tecti on G. Ki mmel, Sy stem E ngin eer D. M oore , N ucl ear Ov ersi ght M ana ger K. M ose r, S ite E ngin eeri ng Di recto r V. Ne el s, C hemi stry M ana ger J. O'Ne il , C AP M anger T. Pete rsen , R egul atory A ssu ranc e K. Snowden, Eng ineering CAPCO B. Ste dman , P la nt E ngin eeri ng Su perv is or B. Sv al eso n, Ope rati ons M ana ger D. T u b b s , M i d A me r i c a n E n e r gy T. W ojci k, Engin eeri ng/Programs S upe rv is or Nu cl ear Re gula tory C ommis si on M. R i n g, C h i e f, B ra n ch 1 , D i v i si o n o f R e a ct o r P ro je ct s Ill in oi s E mergency M ana gement A gency R. Ganse r, IEM A Insp ecto r

ITEMS OPENED, CLOSED, A ND DISCUSSED Items Ope ned 050 002 54/2 006 017-01 NC V Fai lu re to D ev el op Co rrecti v e A cti ons050 002 65/2 006 017-01Items C lo sed 050 002 54/2 006 017-01 NC V Fai lu re to D ev el op Co rrecti v e A cti ons050 002 65/2 006 017-01Items D is cus sed No ne 2 A tt a ch me n t

LIST OF DOCUM ENT S REVIEWED T h e f o l l o w i n g i s a l i s t o f l i c e n s e e d o c u m e n t s r e v i e w e d d u r i n g t h e i n s p e c t i o I n c l u s i o n o f a d o cu me n t o n t h i s l i st d o e s n o t i mp l y t h a t N R C i n sp e ct o rs r e v i e w e d t h e e n ti re d o cu me n t, b u t, rat her t hat select ed sect ions or port ions of the docum ents w ere evaluated as par t of the overall inspect ion ef f or In addition, inclusion of a documen t on this list does not imply NRC a cc e p ta n ce o f th e d o cu me n t, u n l e ss s p e ci fic a l l y s ta te d i n t h e b o d y o f th e i n sp e ct i o n r e p o rt.I s s u e R e p o r t s R e l a t e d t o N R C F i n d i n gs 247 298; E rror D is cov ered i n S afety R el ie f V al v e D is cha rge Fl ange Ca lc ul ati on; Au gust 25 , 20 04 261 135; Improp er V al v e L in e-up R esu lts i n a n 1 A RH RS W H ead er L eak; Octob er 7 , 20 04 215 874; Target Ro ck Sa f ety R el ie f V al v e A s F oun d L ift Pre ssu re H igh; Ap ril 19 , 20 04 240 494; Out o f Tol eran ce 1-26 3-11 1A , 1-2 63-1 11C , Trend C ode B 2; J ul y 30 , 20 04 261 523; E ntere d S urv ei ll anc e R equi rement 3.0.3 for M is sed C ontro l Ro om E mergency Ve nti la tio n Tec hni cal S pec ifica tio n S urv ei ll anc e R equi rement 3.7.4.4; Octo ber 8, 2 004 238 434; Quad C iti es M ai n S team Sa f ety V al v e Tol eran ce Pa ral le l Dre sde n A cti v iti es; Jul y 23 , 20 04 2 2 3 8 1 5; P o te n ti a l t o D ra i n t h e To ru s o n a F a i l u re o f th e R e a ct o r C o re I so l a ti o n C o o l i n g S y st e m Li ne; M ay 26 , 20 04 287 242; Inc orrec t S ampl in g of Inte rim Sp ent Fue l Sto rage C onc rete Pa d; D ece mber 21, 200 4 287 245; Inte rim Sp ent Fue l Sto rage A rea Si gnature Co nce rns; De cembe r 21 , 20 04 210 347; Ins ul ati on Sa mpl e Taken W ith out Ra di ati on Pro tecti on Group's K now le dge; M ay 23 , 20 04 311 612; N RC C onc erns R el ated to Operati ona l De termin ati on - Ope rati ona l De ci si on M aking Pro ces s; M arch 11 , 20 05 304 538; Inc orrec t A ppl ic ati on of "Av ai la bl e" to A bno rmal Li neu p; F ebru ary 23 , 20 05 3 4 5 0 0 3; R e v i si o n N e e d e d for P a rke r H a n n i fin Op e ra b i l i ty E v a l u a ti o n for I ss u e R e p o rt 3 2 8 8 5 1; Jun e 1 7, 2 005 348 206; E x tent of Con di tio n N ot A ddre sse d for Iss ue Re port 328 437; Ju ne 28, 200 5 339 884; Fi nal D ry w el l Cl ose out De f ic ie nci es Du rin g Q1M 18; M ay 31 , 20 05 317 820; P la nt S tartup Iss ue Bu s 1 8 4 80 Vo lt Fee d B reaker Tri p; M arch 27 , 20 05 321 351; 3 M ai n S team Sa f ety V al v es in Q1R 18 Test Outsi de of T ech ni cal S pec ifica tio ns, Insi de of Cod e Tol eran ce; Ap ril 5, 200 5 3 6 9 7 6 0; C o d e C a se -5 1 3 R e qui re s F u l l C i rc u mfer e n ti a l N o n-D e st ru ct i v e E v a l u a ti o n; Au gust 31 , 20 05 275 607: M O 1-1 001-26A W oul d N ot Ope n D uri ng QCOS 100 0-09; N ov embe r 22 , 20 04 315 350; M O 2-1 001-26B Inb oard D ry w el l Sp ray Iso la tio n V al v e W il l No t C lo se; M arch 21 , 20 05 297 548; 41 60 Vo lt M eteri ng Cu rrent Transformer Si ngle F ai lu re V ul nera bi li ty; Fe brua ry 3, 200 5 4 4 8 7 7 3; Orga n i z a ti o n a l I ss u e s a n d B e h a v i o rs for E x te n d e d P o w e r U p ra te N e e d R e v i e w; Feb ruary 1, 200 6 437 638; 2-0 203-3D E le ctromati c R el ie f V al v e In spe cti on; De cembe r 30 , 20 05 4 4 0 7 7 3; U n i t 1 3 D E l e ct ro ma ti c R e l i e f V a l v e A ct u a to r S h o w s Ti l t P i v o t P l a te B o l t W e a r; Jan uary 10 , 20 06 451 822; M ana gement D eci si on on Pl ant W al kdow ns Ne eds R ev ie w; Ja nua ry 14 , 20 06 435 858; U ni t 2 ER V De cl ared Ino pera bl e; D ece mber 21, 200 5 502 702; N RC Ins pec tio n F in di ng Co nce rni ng Ap pen di x R R edu nda nt Trai ns; M ay 12 , 20 06 485 702; R equi red Sa f e S hutd ow n A nal y si s N ot C onta in ed in QCA RP 00 30-0 1; M ay 1, 200 6 489 175; Qual ity of Fi re P repl ans; M ay 10 , 20 06 3 A tt a ch me n t 489 160; Ju sti f ic ati on of Fi re H ose P ress ure and F lo w M eeti ng NF PA; M ay 10 , 20 06 489 426; C la ss A Fi re E x tin guish er P la cemen t Improv emen ts; M ay 11 , 20 06 482 166; R HR SW V aul t S ump Di sch arge C hec k Val v e F ai le d to S eat; Ap ril 22 , 20 06 438 650; 1B C ore Sp ray P ump Bre aker Trip ped Immedi atel y W hen S tarti ng; Jan uary 4, 200 6 456 929; U ni t 1 Re acto r S cram o n l oad R eject; Feb ruary 22 , 20 06 E H C F l u i d I n tr u si o n D o cu me n ts Issue R epo rts: 102 044; E HC oi l in the U ni t 2 Ca bl e Tun nel; A pri l 2, 2 002 122 749; Oi l le aking i nto Un it 2 C abl e Tun nel ca bl e tra y s; S epte mber 13, 200 2 139 980; E HC oi l le aks dri ppi ng thro ugh ce il in g to 5 95' l ev el; Ja nua ry 17 , 20 03 268 086; P oten tia l EH C Lea k Ex tent of Con di tio n; Octo ber 28, 200 4 270 005; R esi dua l Oil F rom E HC Le aks i n Tray s o f U ni t 2 Ca bl e Tun nel; N ov embe r 3, 200 4 269 868; U ni t 2 Ex tent of Con di tio n - F ol lo w up to CR 26 808 6; N ov embe r 3, 200 4 277 328; E HC l eak de gradi ng cab le s; N ov embe r 29 , 20 04 281 051; Oi ly flui d i n E le ctri cal Ju ncti on Bo x es on Pa nel 22 51-1 4B; D ece mber 9, 2 004 282 427; C abl e tra y K 104 6 R epa ir cab le s d amaged by E HC; D ece mber 14, 200 4 290 211; P rede f in e 1 663 12-0 1 d eferred d ue to l ack of reso urce s; J anu ary 12 , 20 05 300 125; A ddi tio nal E HC oi l f oun d d uri ng w al k dow n o f U ni t 2 Ca bl e Tun nel; Fe brua ry 10 , 20 05 302 071; D rip pa ns at c ei li ng crac ks/joints ne ede d for E HC oi l le aks; Fe brua ry 16 , 20 05 302 218; Ins tal l dri p p ans - Un it 2 C abl e Tun nel for EH C f lu id l eaks; F ebru ary 16 , 20 05 314 459; Fa il ed Ca bl e Tun nel i nsp ecti on of cabl es PM ID 166 312-01; M arch 18 , 20 05 342 796; R epa ir crac ks in ce il in g of U ni t 2 Ca bl e Tun nel to stop E HC oi l; Jun e 1 0, 2 005 381 824; Fl ex co ndu it routi ng sub jects it to w etti ng w ith E HC flui d; Octo ber 4, 2 005 478 809; C abl es in U ni t 2 Ca bl e Tun nel w ith E HC oi l dama ge no t rep ai red; Ap ril 14 , 20 06 491 593; N ew oi l le akage i nto cab le tray of Un it 2 C abl e Tun nel; M ay 19 , 20 06 493 063; E HC Le ak at C ontro l Va lv e #1; M ay 24 , 20 06 564 373; E HC flui d a nd othe r de f ic ie nci es obs erv ed in U ni t 2 Ca bl e Tun nel; D ece mber 1, 2 006 Su ppo rtin g Inf ormati on: M a te ri a l S a fety D a ta S h e e t to I S O/D IS 1 1 0 1 4 R e v. 1; (M S D S for Tra d e N a me "F Y R QU E L") manu f actu red by S upre sta, Ard sl ey , N Y; De cembe r 29 , 20 05 EP RI Do cumen t, 10 118 23; El ectro-hy drau li c C ontro l Fl ui d a nd El asto mer C ompa tib il ity Gui de; De cembe r 20 05 EC 35 277 3; E v al uati on of Cab le Ja ckets e x pos ed to E HC flui d; D ece mber 10, 200 4 EC 36 020 7; D ocu ment En gine eri ng Po si tio n o n D rie d E HC Oi l Re si due on C abl es; Ap ril 3, 200 6 E C 3 5 2 2 2 4; D ri p P a n s for L e a ki n g E H C Oi l I n to C a b l e Tra y s R e fere n ce R P-A A-5 0 2; N ov embe r 9, 200 4 W ork Order 529 436; Ins pec t C abl e Tun nel Tray s for oi l; Jan uary 9, 200 3 W ork Order 536 234; Ins pec t C abl e Tun nel Tray s for oi l; Jan uary 8, 200 4 W ork Order 654 752; Ins pec t C abl e Tun nel Tray s for oi l; No v embe r 1, 200 4 W ork Order 753 275; Ins pec t C abl e Tun nel Tray s for oi l; M arch 18 , 20 05 W ork Order 782 953 , Task 02; E S Insp ect Ca bl es in ca bl e p an after cl ean ed and rep ai red; De cembe r 13 , 20 06 4 A tt a ch me n t OPEX S earc h: C o n d u ct e d N R C OP E X s e a rc h o n E H C e v e n ts r e su l ti n g i n t h e c o l l e ct i o n a n d r e v i e w o f IE Ci rcul ar N o. 7 7-06 en titl ed, "Eff ects of Hy drau li c F lu id on E le ctri cal C abl es," li cen see ev ent repo rts, i nsp ecti on repo rt find in gs and i ntern ati ona l in ci den t rep orts.Pro ced ures EI-A A-1; E mpl oy ee Issue s; R ev is io n 1 EI-A A-1 01; Empl oy ee Co nce rns Pro gram; Rev is io n 6 EI-A A-1 00-1 003; E mpl oy ee Issue s A dv is ory C ommitte e N oti f ic ati on; Re v is io n 0 EI-A A-1 01-1 001; E mpl oy ee Co nce rns Pro gram Proc ess; R ev is io n 4 EI-A A-1 01-1 002; E mpl oy ee Co nce rns Pro gram Trendi ng Tool; R ev is io n 3 LS-AA-115; Opera tin g Ex peri enc e; R ev is io n 9 LS-AA-120 , Issu e Id enti f ic ati on and S cree ni ng Pro ces s, R ev is io n 6 LS-AA-125 , C orrec tiv e A cti on Pro gram Proc edu re, R ev is io n 1 0 LS-AA-125-100 1; R oot Ca use; R ev is io n 5 LS-AA-125-100 2; C ommon Ca use; R ev is io n 4 LS-AA-125-100 3; A ppa rent Ca use; R ev is io n 6 LS-AA-125-100 4; E f f ecti v ene ss Re v ie w; R ev is io n 2 LS-AA-126; S el f-Ass ess ment Pro gram; Rev is io n 5 LS-AA-126-100 1; F ocu sed A rea Se lf-Asse ssmen ts; R ev is io n 4 M A-A A-7 16-0 40, "Co ntrol of Po rtabl e M eas uremen t an d Tes t E quip ment Pro gram," Rev is io n 3 OP-AA-201-006 , "C ontro l of T empo rary H eat sou rces ," R ev is io n 3 QCOP 001 0-02 , "R equi red Co ld W eath er R outi nes ," R ev is io n 2 2 QC OP 3 9 0 0-0 6 , "F l u sh i n g H e a t E x ch a n ger Te mp e ra tu re C o n tr o l V a l v e B y p a ss L i n e s," Re v is io n 0 OP-AA-108-115; Opera bi li ty D etermi nati ons; R ev is io n 0 OP-AA-106-101-100 6; Ope rati ona l and Tech ni cal D eci si on M aking P roce ss; Re v is io n 3 LS-AA-110; C ommitmen t M ana gement; R ev is io n 4 QCOP 100 0-31; R HR S erv ic e W ater Ve nti ng; Re v is io n 1 2 HU-AA-110 1; C han ge M ana gement; R ev is io n 1 CC-M W-101; E ngin eeri ng Ch ange Re quests; Re v is io n 0 LS-AA-125-100 5; C odi ng an d A nal y si s M anu al; R ev is io n 5 W C-A A-1 01; On-Li ne W ork Co ntrol P roce ss; Re v is io n 1 3 TIC 15 83; QCGP 2-1 - No rmal U ni t S hutd ow n; d ated Octob er 1 2, 2 006 OU-AA-101-100 5; E x el on Nu cl ear Outage S che dul in g; Rev is io n 2 Is su e R e p o rt s 561 089; Lo st M&TE No t V eri f ie d; N ov embe r 22 , 20 06 388 756; U T Ex am F or 2 006 R aw W ater Pi pi ng Pro gram; October 21, 200 5 287 183; M&TE Out of Tole ranc e Id enti f ie d; J anu ary 3, 200 5 309 858; M&TE Out of Tole ranc e Id enti f ie d; M arch 7, 200 5 364 701; M&TE Out of Tole ranc e Id enti f ie d; A ugust 1 9, 2 005 450 440; Lo st M&TE; Feb ruary 6, 200 6 508 553; Lo st M&TE; Jul y 12 , 20 06 556 136; M&TE Out of Tole ranc e Id enti f ie d; N ov embe r 10 , 20 06 277 260; H y dromete r Tube (FM E) Fou nd in C el l #87 of 25 0V DC B attery; N ov embe r 29 , 20 04 5 A tt a ch me n t 346 534; R etri ev e F M E In N ew S pare B attery C el l; Jun e 2 2, 2 005 508 747; FM E In B attery #1 C el l #53; Ju ly 12 , 20 06 538 218; FM E in 2A 1 2 4/48 V B attery C el l #10; S epte mber 29, 200 6 301 534; N eed W R To Re pl ace U 2 B attery R oom HV AC H eate rs; F ebru ary 15 , 20 05 314 083; B attery R oom He ater Un-Timel y C orrec tiv e A cti ons; M arch 17 , 20 05 365 936; E C For Ba ttery H VA C He ater M od Inad equate; Au gust 23 , 20 05 366 250; U-1 B attery R oom He aters N ot D raw in g Prop er A M PS; A ugust 2 4, 2 005 366 296; U-2 B attery R oom He aters N ot D raw in g Prop er A M PS; A ugust 2 4, 2 005 372 532; U 2 B attery R oom HV AC U ni t Is Dri ppi ng W ater Onto F lo ors; Se ptembe r 12 , 20 05 373 609; U 1 S BO B attery R oom Thermostat No t S et C orrec tly; S epte mber 14, 200 5 373 614; U 2 S BO B attery R oom Thermostat Se t Inc orrec tly; S epte mber 14, 200 5 430 589; N RC Ide nti f ie d C onc erns W ith B attery R oom Ve nti la tio n; D ece mber 5, 2 005 433 852; B attery R oom HV AC C onc erns P rov id ed By N RC; D ece mber 14, 200 5 440 946; S ummary Of N RC Que sti ons On Ba ttery R oom Temperatu res; Jan uary 11 , 20 06 455 559; B attery R oom HV AC Ina dequa te; F ebru ary 18 , 20 06 506 151; U-1 A nd U-2 25 0 V DC B attery R ooms Are Too Ho t; Ju ly 3, 200 6 514 664; E le v ated R oom Temperatu re In The U-2 B attery R oom; Jul y 30 , 20 06 327 137; R el ay C hatte r A t Lo w P ow er D uri ng S/U A nd S/D; A pri l 21, 200 5 345 374; R el ay C hatte r D uri ng Un it Sta rt U p; J une 19 , 20 05 345 372; R el ay C hatte r D uri ng Un it Sta rt U p; J une 19 , 20 05 453 580; R PS R el ay C hatte r; Fe brua ry 14 , 20 06 464 325; R el ay C hatte r D uri ng Sta rtup An d S hutd ow n; M arch 9, 200 6 481 012; R el ay C hatte r D uri ng Po w er In crea se; Ap ril 20 , 20 06 381 666; M A-QC-7 36-1 00 Inco rrect Fi re D ie sel D ay Tank C apa ci ty; Octob er 4 , 20 05 359 788; 1/2-52 05-A D ie sel F ire P ump Da y Tank Le v el Is No t A ccu rate; Au gust 3, 200 5 445 504; FP D ay Tank Fi ll Le v el Ind ic ator Re adi ng Inco rrect; Jan uary 24 , 20 06 539 135; B F ire D ie sel D ay Tank Li t R ead s H i Out of Ba nd; Octobe r 2, 200 6 R o o t, A p p a re n t a n d C o mmo n C a u se R e p o rt s Root Cause Investig ation Repor t 543422-05; Standby Liquid Contr ol Uni t 1 Declared I noper able Du e to Throu gh W al l Lea k; Nov embe r 20 , 20 06 R o o t C a u se I n v e st i gat i o n R e p o rt 3 4 5 1 5 2; E H C M a l fun ct i o n C a u se s R e a ct o r P re ss u re Ex curs io n a nd resu lta nt S CR AM; Ju ly 25 , 20 05 Root Cause Investig ation Repor t 456929-04; Unit 1 M ain Gener ator Tr ip and Reactor SCRAM o n D i ffe r e n t i a l O v e r c u r r e n t T r i p D u e t o D e gr a d e d M a i n P o w e r T r a n s fo r me r C T W i r i n g; M arch 30 , 20 06 Ro ot C aus e In v esti gatio n R epo rt 43 865 0; 1 B Co re S pray P ump Bre aker Fa il ed to C lo se After Sta rt A ttempt; J une 6, 200 6 Ap pare nt C aus e R epo rt 50 631 5; R ece iv ed A Ch ann el 1/2 S cram F rom A PR M 3 Fai li ng Up sca le; (p ri o r to M R C r e v i e w) Co mmon C aus e A nal y si s 5 127 02-0 2; 2 006 Qua d C iti es Hu man Pe rf ormanc e E v ents; Jan uary 1 - Ju ly 31 , 20 06 Se lf-Asse ssmen ts a nd NOS Au di ts C h e c k-I n Se lf-A s s e s s m e n t 49 9 8 5 8-0 4; Mai n t e n a n c e Hu m a n Pe r f o r m a n c e Re vi e w; Se ptembe r 25 , 20 06 Ch eck-In S el f-Ass ess ment 445 362-03; Operato r W orkaroun d P rogram; Fe brua ry 6, 200 6 6 A tt a ch me n t Ch eck-In S el f-Ass ess ment 328 946; C orrec tiv e A cti on Cl osu re R ev ie w; M ay 19 , 20 06 Foc use d A rea Se lf-Asse ssmen t 51 309 1; P robl em Id enti f ic ati on and R eso lu tio n; Octobe r 27 , 20 06 Foc use d A rea Se lf-Asse ssmen t 48 942 2; Qua d C iti es Hu man Re li abi li ty A nal y si s; J ul y 31 , 20 06 Nu cl ear Ov ersi ght Au di t N OSA-QD C-0 5-01; C orrec tiv e A cti on Pro gram; M ay 18 , 20 05 Nu cl ear Ov ersi ght Au di t N OSA-QD C-0 5-05; E ngin eeri ng De si gn Co ntrol; A ugust 3 1, 2 005 Nu cl ear Ov ersi ght Au di t N OSA-QD C-0 6-01; M ai nten anc e; F ebru ary 22 , 20 06 Nu cl ear Ov ersi ght Au di t N OSA-QD C-0 6-05; E ngin eeri ng Pro grams; Jul y 11 , 20 06 Issue R epo rts gene rated for the i nsp ecti on in cl ude d: 568 435; H PC I R oom Co ol er S trai ner Dra in V al v e P ackin g Lea k; Dece mber 12, 200 6 568 479; P&IR N RC Ide nti f ie d P roce dure C la rifica tio n N eed ed; De cembe r 12 , 20 06 568 886; A ddi tio n to E x el on Issue s R eso lu tio n P rograms Tri-fold

D ece mber 13, 200 6 569 581; Issu es W ith S BL C Ro ot C aus e; D ece mber 14, 200 6 Other Ex el on Nu cl ear's L earn in g Programs R epo rt (Fe brua ry 20 06) - C orrec tiv e A cti on Pro ces s a nd OP E X c o mp o si te p e rfor ma n ce i n d i ca to rs Ex el on Nu cl ear's L earn in g Programs R epo rt (M arch 20 06) - C orrec tiv e A cti on Pro ces s a nd OP E X c o mp o si te p e rfor ma n ce i n d i ca to rs Ex el on Nu cl ear's L earn in g Programs R epo rt (A pri l 200 6) - Co rrecti v e A cti on Pro ces s a nd OP E X c o mp o si te p e rfor ma n ce i n d i ca to rs Ex el on Nu cl ear's L earn in g Programs R epo rt (A ugust 2 006) - C orrec tiv e A cti on Pro ces s a nd OP E X c o mp o si te p e rfor ma n ce i n d i ca to rs Ex id e V end or In f ormati on on Ba ttery R oom Sta nda rds and V enti la tio n L i se ga In st a l l a ti o n P ro ce d u re o n S e ri e s 3 0 H y d ra u l i c S n u b b e rs EC 37 838 8; L ost M&TE No t V eri f ie d; D ece mber 11, 200 6 Ex el on Po w er L abs C al ib rati on of T orque W renc h 2 688 649 co mpl eted M arch 7, 200 6 PORC M eeti ng 06-33 M in utes Qu i ck H u ma n P e rfor ma n ce I n v e st i gat i o n R e p o rt 5 6 2 7 0 6; M i n o r A d ju st me n t M a d e t o t h e U n i t 1 Re f uel P la tf orm W ith out a W ork Order; E v ent Da te

N ov embe r 27 , 20 06 M eas uremen t an d Tes t E quip ment Ev al uati on 04-0 159; D ece mber 22, 200 4 M eas uremen t an d Tes t E quip ment Ev al uati on 05-0 040; Fe brua ry 25 , 20 05 M eas uremen t an d Tes t E quip ment Ev al uati on 05-0 098; A ugust 1 8, 2 005 M eas uremen t an d Tes t E quip ment Ev al uati on 06-0 119; Fe brua ry 6, 200 6 M eas uremen t an d Tes t E quip ment Ev al uati on 06-0 068; Ju ly 8, 200 6 M eas uremen t an d Tes t E quip ment Ev al uati on 06-0 112; N ov embe r 8, 200 6 7 A tt a ch me n t

L IS T OF A C R ON Y MS AC E Ap pare nt C aus e E v al uati on CC A Co mmon C aus e E v al uati on D P D i ff e re n ti a l P re ss u re E P R I E l e ct ri c P o w e r R e se a rc h I n st i tu te FM E Fore ign M ateri al E x cl usi on HV AC He ati ng, Ve nti la tio n, a nd Ai r C ond iti oni ng NC V No n-C ite d V io la tio n OE Operati ng Ex peri enc e R C R R o o t C a u se R e p o rt SB GT Sta ndb y Gas Treatment SR V Sa f et y Relie f Val ve S S D S a f e Sh u t d o wn TRM Techni cal R equi rements M anu al U F S A R U p d a te d F i n a l S a fety A n a l y si s R e p o rt