ML17298C042
| ML17298C042 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/15/1985 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| ANPP-32399-EEVB, NUDOCS 8504170409 | |
| Download: ML17298C042 (27) | |
Text
REGULATORY-INFORMATION DISTRIBUTION SYSTEM CRIDS)
ACCESSION NBR;8504170409 DOC ~ DATE: 85/04/15 NOTAR D:
YES FACIL:STN-50-528 Palo Ve'rde Nuclear Stationi Unit li Ar)zona Publ i STN"50-529 Palo Verde Nuclear. Stations Un) t 2i Ar izona Publi STN"50-530 Palo Verde Nuclear Stationi'nit 3i Arizona Publi AUTH INANE AUTHOR AFFILIATION VAN BRUNTiE.,E, Arizona Public Service Co, RECIP ~ NAME RECIPIENT AFFII IATION KNIGHTONiGiN ~
L-icensing Branch 3
SUBJECT:
Forwards chemistry limit comparison to close License Condition 2
'D
(23)gincorpora.ting excerpt from Section 3,a of SECY 8412A t'ables from Steam Generator Owners Group.
Special Rept EPRI-NP 2704.
DISTRIBUTION COOK+
B021D COPIES'ECEIVED LTR ENCL SIZE:
TITLE: OR/Licensing Submittal:
Combined General Distribution NOTES;Standardized plant ~
OIL: 12/31/84 Standardized plant ~
Standardized plant.
DOCKET: ¹ 05000528 05000S29=
05000530'5000528 05000529 05000530 RECIPIENT ID CODE/NAME(
, LICITRA,E, 01 INTERNAL: ACRS 29 ELD/HOS3 NRR/DE/MTEB NRR/OHFS/HFEB16'RR/DL D IR NRR/DL/SSPB NRR/OS I/AEB 28 NRR/DS I/CSB 10 NRR/DSI/METB 13 NRR/DSI/RSB, 25.
RGiNS COPIES LTTR ENCL 1
1 1
1 8
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0 1
1 1
1 1
0 1
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1 1
1 1
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1 RECIPIENT ID CODE/NAME NRR LB3>> LA ADM/LFMB NRR/DE/CEB 09 NRR/DHFS DEPY12 NRR/DHFS/LQB NRR/DL/ORAB NRR/DS I/ADRS NRR/DS I/CPB 1 1 NRR/DSI/ICSB 18 N
PSB 21 REG F ILE 04
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LTTR 36 ENCL 28
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Arizona Nuclear Povver Project P.o. BOX 52034 o
PHOENIX, ARIZONA85072-2034 ANPP-32399/EEVB/MFQ April.15, 1985 Director of Nuclear Reactor Regulation Attention: Mr. George W. Knighton, Chief Licensing Branch No. 3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2 and 3
Chemistry Control and Sampling Systems Docket Nos.
STN 50-528(License No. NPF-34)/529/530 File:
85-056-026'.l.01.10
References:
- 1) Letter to G.
W. Knighton, NRC, from E. E.
Van Brunt, Jr.,
ANPP, dated December 18, 1984;
Subject:
Post-FDA Proposed CESSAR Changes.
- 2) Policy Issue, SECY-84-13A, dated September 7, 1984;
Subject:
NRC Integrated Program for the Resolution of Steam Generator USI's (Revised).
Dear Mr. Knighton:
License Condition 2.C.(23) of the PVNGS Unit 1 license requires ANPP to provide details for staff review on the steam generator secondary water chemistry limits.
These limits were submitted to the staff in Reference 1.
Details on the secondary water chemistry limits have been previously provided in submittals dated January 31, 1985 (ANPP-31831),
February 26, 1985 (ANPP-31984) and March 8, 1985 (ANPP-32099).
In a meeting with members of the NRC staff on April 3, 1985, the Chief of the NRC Chemical Engineering Branch indicated that additional information on the comparison of the PVNGS secondary water chemistry limits to the NRC internal guidance (Reference 2, Section 3.a) would be required to complete the NRC review.
This internal NRC guidance uses the Steam Generator Owners Group Special Report EPRI-NP-2704 "PWR Secondary Water Chemistry Guidelines",
October
- 1982, as a review basis for the chemistry limits.
Attached is the Chemistry limit comparison requested to close License Condition 2.C.(23).
The attachment contains an excerpt from Section 3.a of SECY 84-13A, which references the SGOG Special Report EPRI-NP-2704 "PWR Secondary Water Chemistry Guidelines", October, 1982. It also contains several tables from the SGOG Special Report EPRI-NP-2704 for comparison purposes with the PVNGS secondary water chemistry limits.
Justification for each difference in the chemistry limits is also provided within the attachment.
p4i7p4p
Mr'. George M. Knighton, Chief Chemistry Control and Sampling Systems ANPP-32399 Page 2.
Please contact Mr. M. F. Quinn of my staff if you should have any questions on this matter.
Very trul yo P. c E. E.
Van Brunt, Jr.
Executive Vice President Project Director EEVB/KLM/das Attachment cc:
E.A. Licitra (all w/a)
R. P.
Zimmerman A. C. Gehr
I ANPP-32399 STATE OF ARIZONA
)
) ss.
COUNTY OF MARICOPA)
I, Edwin E.
Van Brunt, Jr.,
represent that I am Executive Vice President, Arizona Nuclear Power Project, that the foregoing document has been signed by me on behalf of Arizona Public Service Company with full authority to do so, that I have read such document and know its contents, and that to the best of my knowledge and belief, the statements made therein are true.
Edwin E. Van Brunt, Jr.
a(C ~
Sworn to,before me thXe~dey of 1985.
er
-o Notary Public My Commission'xpires:
My Commlssian Ires A ril 6
$987
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COMPARISON OF NRC SECONDARY WATER CHEMISTRY LIMITS GUIDANCE (SECY-84-13A, SECTION 3.a)
WITH PVNGS/CESSAR PROPOSED WATER CHEMISTRY
hl
j ~
(Excerptxx Sl L'I'-Uh-L'3A)
Attachment 1
Page 1 of 11 3.a SECOHDARY MATER CHEMISTRY PROGRN(
Staff Recomended Action eg4
~rlr "x y'
il Jx lj qC' k'i jib" Revision 3 to Standard Review Plan (SRP) Section 5.4.2.1 incorporates the SGOG Special Report EPRI-HP-2?04 "PMR Secondary Mater Chemistry Guidelines,"
October 1982 as a review basis.
These guidelines
- er prepared by the
- Steam Generator Owners Group Mater Chemistry Guidelines Comittee and represent and consensus opinion of' significant portion of the industry for state-of-the-art secondary water chemistry control.
It is anticipated that Revision 4 to Standard Review Plan (SRP) Section 5.4.2.1 will incorporate a revision to EPRI-HP-2704 as the review basis.
Reference Section 2e5 of HUREG-0844.
Attachment 1
Page 2 of 11 PVNGS/CESSAR PROPOSED HATER CHPlISTRY BASED ON CURRENT C-E CHEMISTRY RECOMMENDATIONS EPRI-SGOG GUIDELINES, REVISION 0 INCORPORATED INTO C-E CHEMISTRY RECOMMENDATIONS PVNGS/CESSAR PROPOSED HATER CHENISTRY. IS I'10RE CONSERVATIVE THAN EPRI-SGOG GUIDELINES, REVISION 0
b'
'j v
2.i.2 Tables of Pare+ter s end Yalues Attachment l Page 3 of ll Table 2-3a (1)
REC IRCULATING STEP@
GENERATOR PSfER OPERATION FEE0MATER QW'LE Parameter pH (ferrous system) pH (ferrous/copper system) contf nuous contf nuous Normal Value 9.3-9.6 88-9.2 Actfon Level
<9-3
>9.6
<8.8
>9.2 Catfen Conductfvfty, ccetf @vous ymho(m
<0.2
>0.2 5fsao1vod 02, ppb Total Iron, pph Total Copper, ppb Hydrazfne, ppb pH Control Addftfve contfnuous contfnuous weekly (fntograted) eeekly (fntograted) dafly dafly
<3 c2
>3x[0]
)0 0
>3
>20
>2
<3 x[0)~
d'O) >g~
~ sutton required only st eager(once shows
$ ncreased copper transport at pH>92
~v Based on oxygen value measured Sn the condensate samole
('belaWv J)
~ To be consfstent Qth pH Pl%,( (CEKAz.
l)iF'~et ~@E-(1) Table from EPRI-SGOG Guidelines Revision 0 (EPRL-NP-2704) 2-16
4 4
Table 2-u (l )
REC IRCULATIN6 STEM GENERATOR 1CdKR OPERATION OLO SO%I SADDLE Attachment 1
Page 4 of 11 pN (ferrous systol)
(ferrceslc~
system)
Cattery Ceehxttvity, y@84$/cQ frr~~
ccet$ maes eeet) eases conti nuous Normal Value Action Level 08-92 c8.5
>9.2
>0.8
>2 x9.Dq o q gc9.0')cj,(
>7
$9%H'u
~
@pe
- CQoride, pub c~$~
daily II Qj~Pe., ppI daily action required only if experience
>20
>100
>500 c20
>20'
>100 c300
>300
~If
>tC
'>lao shia increased copper transport at pH
> 9.2 Table 2-3c (1)
RECIRCULATING STGN GENERATOR POMER OPERATION CMKNSATE SQPLE Action Level Dissolve&
02, pIPb
( fern~ system)
(f err'/copper systee)
Frru~enc conti nuous continuous Nowell Value c10 c10
~30
>10
>60
>10
>30 I'"($enmut sqNc~)
(qa~ogt / coppe.~ )
'gIfC~
gedig~
) ping
%5-t ~ 4 ~'L) >
I~
(3 b&cTK PWHbf/ <~
2-17 (1 ) Table from EPRI-SGOG Guidelines Revision 0
(EPRI-NP-2704)
Attachment 1
Page 5 of ll F.EEDD'~T FFR C
HYDRAZINE, PPB
~3m (02)."
G 10-50 BASED ON OXYGEN YALVE MEASURED IN THE CONDENSATE SAMPLE PVNGS/CESSAR PROPOSED CHEMtSTRY LIMITS ARE CONSISTENT WITH THE INTFl'JT OF THE EPRI-SGOG RFVISION 0 GUIDELINES, THE LOWER LIMIT ON HYDRAZINE IS ESTABLISHED TO ENSURE A
SUFFICIENT RESIDUAL TO REMOVE ANY OXYGEN, THE UPPER LIMIT ON HYDRAZINE IS ESTABLISHED TO CONTROL AMMONIA FORMATION,
Attachment 1
Page 6 of ll MG R
0 FF PH (FERROUS SYS)
SULFATES PPB V"
V G
- 9. 0-9,6 U
PVNGS/CESSAR PROPOSED CHEMISTRY LIMtTS ARE CONSISTENT l<ITH AND MORE LIMITING THAN THE EPRt.-SGOG REVISION 0 GUIDELINES, AN UPPER LIMIT ON PH OF 9,6 HAS BEEN ADDFD TO PROTECT AGAINST AN INADVERTENT ADDITION OF CAUSTIC, AND TO LIMIT NHg CONCENTRATION IN THE COf'KDENSATE SYSTEN (WHICH COULD INCLUDF. A COPPER ALLOY.TUBESHEET FVEN THOUGH CLASSIFIED "ALL FERROUS"}..
THE PARAMETER SULFATE IS MONITORED TO PRECLUDE SULFATE INDUCED INCONEL 600 CORROSION,
Attachment 1
Page 7 of 11 FF DISSOLVFD 02, ppB pH (FERROUS SYS)
(FERROUS/COPPER SYS)
QCTIOH 2)
~SO
/PV G
>30 9,3-9,6 8,8-9,2
-'ODIUM., ppB PVNGS/CESSAR PROPOSED CHEMISTRY LIMITS ARE CONS%TENT WITH AND MORE LIMITING THAN THE EPRI-SGOG REVISION 0 GUIDELINES, PVNGS/CESSAR PROPOSED CHEMISTRY CHANGES HAVE ONE 02 LIMIT FOR BOTH FERROUS AND FERROUS/COPPER
- SYSTFNS, THE f"lORE CONSERVATIVE ACTION 2
EPRI-SGOG LtMIT IS APPLIED FOR BOTH TYPES QF SYSTEM",
THE PARAf"IETER pH HAS BEEll ADDED FOR CORROSION CONTROL IN THE CONDENSATE SYSTEfi, THE PARAMETER SODIUM HAS BEEN ADDED FOR INDEPENDENT VERIFICATION OF CONDENSER LEAKAGE UPSTREAM OF FEED'HATER INDICATION MHICI~ IS DILUTED BY HP DRAINS,
t t
I l
R,
Attachment I Page 8 of ll P
-G RV ACTION LEVEL ll IMPLEMENTED WHENEVER AN OUT OF-NORMAL VALUE IS DETECTED>
ACTIONS.')
RETURN PARAMETER TO WITHIN NORMAL VALUE RANGE WITHIN ONE WEEK FOLLOWING CONFIRMATION OF EXCURSION B)
IF PARAMETER IS NOT WITHIN NORMAL VALUE RANGE WITHIN ONE WEEK FOLLOWING CONFIRMATION OF EXCURSION GO TO ACTION LEVEL 2 FOR THOSE PARAMETERS HAVING ACTION LEVEL 2 VALUES ACTION LEVEL 2:
IMPLEMENTED WHEN CONDITIONS EXIST WHICH HAVE BEEN SHOWN TO RESULT IN SOME DEGREE OF STEAM GENERATOR CORROSION DURING EXTENDED FULL (100%%u).
POWER OPERATION ACTIONS:
A)
REDUCE POWER TO APPROPRIATE LEVEL (TYP I CALLY 30/0 OR LESS)
WITHIN FOUR HOURS OF INITIATION OF ACTION LEVEL 2 B}
RETURN PARAMETER TO WITHIN NORMAL VALUE RANGE WITHIN 100 HOURS OR GO TO ACTION LEVEL-3 -FOR.THOSE. PARAMETERS HAYf NG ACTION LEVEL 3 VALUES ACTION LEVEL 5'MPLEMENTED WHEN CONDITIONS EXIST WHICH WILL RESULT IN RAPID STEAM GENERATOR CORROSION AND CONTINUED OPERATION IS NOT ADVISABLE ACTIONS A)
SHUT DOWN WITHIN FOUR HOURS AND CLEAN UP BY FEED AND BLEED OR DRAIN AND REFILL AS APPROPRIATE UNTIL NORMAL VALUES ARE REACHED
Attachment 1
Page 9 of 11 V GS/C S
AR (AiNPP-31502 12/18/8I))
WHEN THE NORMAL RANGE IS EXCEEDED'MMEDIATE INVESTIGATION OF THE PROBLEM SHOULD BE INITIATED'AMPLINGFREQUENCY INCREASED TO THE ABNORMAL LEVEL (AT LEAST TWICE PER 3
HOUR SHIFT)
AND BLOWDOWN INCREASED TO ONE (1)
PERCENT OF THE MAIN STEAMING RATEs THE PROBLEM SHOULD BE CORRECTED AND THE PARAMETER(S)
RETURNED TO THE NORMAL RANGE WITHIN ONE WEEKs IF THIS CANNOT BE DONEE AND THE PARAMETER HAS A LISTED ABNORMAL RANGE POWER SHOULD BE REDUCED TO 25K AS IF THE ABNORMAL RANGE HAD BEEN EXCEEDED<
WHEN THE ABNORMAL RANGE IS EXCEEDED.
POl"ER SHOULD BE REDUCED TO THE LOWEST VALUE (MAXIMUM OF 25K} CONSISTENT WITH AUTOMATIC OPERATION OF THE FEED SYSTEMI CONTINUED PLANT OPERATION IS THEN POSSIBLE WHILE CORRECTI'VE ACTION IS TAKEN)
POWER REDUCTION SHOULD BE -INITIATED WITHIN FOUR HOURS OF EXCEEDING THE ABNORMAL RANGEs THE PROBLEM SHOULD BE CORRECTED AND THE PARAMETER(S)
RETURNED TO THE NORMAL RANGE WITHIN ONE HUNDRED (100)
HOURS e
IF THIS CANNOT BE DONEE THE UNIT SHOULD BE SHUTDOWNs, DRAINING OR FLUSHING OF THE STEAM GENERATORS WILL BE NECESSARY TO REDUCE THE IMPURITY CONCENTRATION, IMMEDIATE SHUTDOWN LIMITS APE PROVIDED IN THF NOTES ON THE STEAM GENERATOR CHEMISTRY FOR THE PARAMETERS IDENTIFIED BELOWI CATION CONDUCTS/ITY ~7,0
/CN SODIUM
>500 PPB THESE PARAMETERS ARE THE ONLY ONES FOR WHICH EPRI SGOG REVISION 0 GUIDELINES HAVE LEVEL 3 ACTION REQUIRED,
Attachment 1
Page 10 of 1)
ACTIO COMP R
SO EPRt-SGOG REVISION 0 GUIDELINES ACTION LEVEL j. IS IDENTICAL TO ACTION REQUIRED BY PVNGS/CESSAR FOR ANY PARAMETER OUTSI'DE NORMAL LIMITS ALL PARAMETERS WHICH HAVE ACTION LEVEL 2 OR 5 IN EPRI-SGOG REVISION 0 GUIDELINFS HAVE '.DENTICAL ACTION SPECIFIED BY PVNGS/CESSAR
Attachment 1
Page 11 of 11 CO U,O THE PVNGS/CESSAR PROPOSED SECONDARY C IENISTRY LIMITS ARF. CONSISTENT lCITII, AND IN SONE CASES NORE LINITING THAN, THE EPRI STEAN GENERATOR ONNERS GROUP PWR SECONDARY HATER CHEHISTRY GUIDELINES REVISION 0
r
/