ML19257D686

LER 80-002/04L-0:on 800102,failure of Makeup Water Sys Neutralizer Tank Discharge Valve Allowed Release of Approx 50,000 Gallons Regeneration Waste Water W/Ph Outside Tech Spec Limit.Caused by Solenoid Valve Sticking.Valve Cleaned

ML19257D686
Person / Time
Site:	FitzPatrick
Issue date:	02/01/1980
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19257D685	List: ML19257D684 ML19257D686
References
LER-80-002-04L, LER-80-2-4L, NUDOCS 8002050459
Download: ML19257D686 (2)

Text

{{#Wiki_filter:.,. .. . _ _ _ _ _ . . _. . . . . , (7 77) LICENSEE EVENT REPORT coNTnot etcCK l 1 l l l l l l@ (PLE ASE PRINT OR TYPE ALL REQUIRED INFORMATioN) o 'l 1 lN lY lJ A lF 1 @(_0 l 0 -l 0 u a0 s -, 0 Ol - 0 Ol o @ 4 1l 1I I 1]@lsi-se@ I

                . 2                     um.su cm                               i.         :s                                                                                      o        a             umu - ~

CON'T 1 , l L l@ 0 l 5 l 0 10 10 l 3 13 l 31@l 0 l 1 l 0 l 2 l 8 l 0 lgl 0 l 2 l 0 l 1 l 8 l 0 @ EVENT DESCn1PTION Ar.O PROB A LE C t .NcES o . ] Failure of the make up water system neutralizer tank discharoe valve 1 o  ; j allowed release of an est imated 50.000 callons of regenerat ion was te I o a l water with a pH value outside of the l imi te of Envi ronment al TS 2.2.3. I o E l Due to the short duration of the releases no signi ficant environrent I o o I ef fect should result. See attachment for details. I oI7I L I oI1 l I

     ,            s     c,                                                                                                                                                                                                                                                                   e c                   u,6
                                                                                            .                              t                                    eC.                                 I.'          L_               y   L         b a     31                                         Lw I c 1 8 IE liiJ l x 10;                                                        viAltiviOiej(g) iE @                                                                     Z l@
     /            d                                                      lir               11                     1                      If                                                             la
                                                                                                                      ,     .'t*                                           G_       ..t-                  5. [ p o p 7                                        D E V I'.       W
                                                             -'  4 T v' E a R                                        b6i                                                                                      TYPt                                                   N' tr. an
                                    ,, _ y l8 10 l                         [-l

[0 10 l2 l/l 21 l0

s 4

n lL 3> l-as Wa At -

                                                                                                                                                                                               - r4                  rm-              >>                           coc v .T

_r i t . . .. re.

                                                        .            c. c           .r                                                   u           U.)                          ,

se i , su iu < T u.< t a ln B !]! aZ l@ lZ ('] '- Zj@ 01 0 O l"0 l Y j (~') lN "@ lA (Q ~ Xl9i9]9I 4 .3 4i .s n u 4; C/ . :E DE: mrTiCN,*'oCo m Ecir.r a c t '". ,

                                                                                                                             .-()

Ial The dischary valvo was < wntdu r.- t o s t i cJh_of_the_ sale no i lya l i o , l ' ! '] l caused bv f_oreirn ra_U h l. C l e ni_;u_O f t h " colonnid alto r- tor _d

            ;              l operation of the tank discharc,' vaive to norral.                                                                                             See attachment I

l for details. 1 RTI 1 a > _ e: F,, Ty -) L' L I . . i CI ,,

                       ;,,1 , *       .                   i 3'    E Ii                                  ) & t' ', I /.1 s        s,-        8               <                                    D:'

• f ( 't L, E 'FtI T' >. I l1 ! l [_E_.ji [ [0_ ! 7 l9lCl NA l A l((_ One ra t o r Observation u i- is .i ,

a( i em . - . .

                     'If'                                                              /          e              I]'. IIV .
                                                                                                                                                                                               < {_ i               )               L [ d[

( 1 L j(y Z W ]) NA l NA l

                                 <<<             ~.
                                                .,  t
                                                                     ~,                                   ,
                                                                                                                                        -                 .v a.

c

                                                                *,                .,          m.       .O,

['l [0 10 0 C l ', b N" _ . , - ~ m - r<n ', ,. b [ ) . 09s nU rn.nrn.@

                                  ,      -o                                                                                                                                _ .A             .           .

j.^-{ y,, l@/-

                                                                                                                                                                                           ' ',) l'                ^i

[-~I-]l0 'a  ; la

l. *

• 4 r + L i I '( 'g TNrf  ; Ji;; i / -"

W,I l 2 lEl Un 7 .1 i. [.[$ , n .- ,@ bO () 2 O b 4' h

                                                                                                                                                                                                                                                                          ""M

[.Ioj bi$l NA l lliIllIlll l1 a u iu e, a c3 a

,     i

a. s r or nog m n W. Verne Childs Pne m (315) 342-3840

POWER AUTHORITY OF THE STATE OF fl[W YORK JAMES A. FITZPATRICK fJUCLEAR POWER PLAtJT

   ~

DOCKET tJ0. 50-333 ATTACHMEtJT TO LER 80-002/04L-0 Page 1 of I Du ., no rma l ope ra t i ons , personnel noted that the air operated drain valve on the 'b waste neutralizer tank (42- A0V-lll B) associ ated wi th the plant 's make-up water demineral izer syste n was open. The makeup demi ne ral i ze r processes raw water from Lake Ontario for use where high puri ty water is requi red for other plant systems. The valve which was found open, and its companion valve on waste neutralizer tank A' , a re normally closed except during discharge of the tank when the pH of the contents have been neutralized to within thee pH limits of Envi ronmental Technical Speci ficat ions Appendix B, Paragraph 2.2.3 Investigation indicates that the discharge valve for the 'B' neutralizer tank may have been open s ince Decembe r 19, 1979 Duri ng t!.e t ime period f rom December 19, 1979 until the valve was di scovered open on January 2, 1980, two chemical regenerat ions of the makeup system cation and anion ion exchange beds were conducted resulting in a release of approximately 50,000 gallons of chemical wastes. Calculations indicate that at various t i ne s during the release of the chemical waste the pH could have varied between 4.0 and 9.1 compared to a Tech-ni cal Speci fica t ion limit of 6.0 to 9.0. It should be noted that the event did not cause the release of any radio-active material and that in estimating the pH ranges discussed above, no credit was taken for possible buf fering ef fects as a result of other chemical compounds which normally are present in the waters of Lake Ontario. In addition, the max-imum release rate of the chemical waste was 300 GPM compared to dilution flow in the plant < discharge tunnel of 'pproximtely 375,000 GPfi. In view of these calculations, the release of 50,000 gallons of chemical waste should not cause any signi ficant environnental damage, investigation revealed that the discharge valve (42-A0V-IllB) was open due to stickinq o f t he valves solenoid operator (42-50V-111B). The solenoid valve wa> disasserbied, cleaned, returned to service and sati s fa : tory operation of 42-A0V-lllB was re s to re d . 1875 099 .}}