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{{#Wiki_filter:DOC T NUMRFR0-/FILE NUMBER ENVIRONtfENTAL FROM: INDIANA 6 MICHIGAN PWR.CO.BRIDGhfAN," MICHIGAN R.W.JURGENSEN TO J.G.KEPPLER DATE OF DOCUMENT 3/28/77 DATE)E/E)VED NUMBER OF COPIES RECEIVED~'TER i ABORIGINAL J86QP Y QNOTOR IZED C~CLASSIFIED INPUT FORM PROP ENCLOSURE I DESCRIPTION LTR.CONFIRMING RELEPHONE CONVERSATION CONGER ING ABN019fAL ENVIRONMENTAL OCCURRENCE OF THE TOTAL RESIDUAL CHLORINE AT XHH CONDENSATE OUTLET EXCEEDING THE-0/10 ppm LIMIT.....
{{#Wiki_filter:NRC FORth 12-76) <<~    $ 95                      tv.S.              NUCLEAR REGULATORY C                        SSION DOC     T NUMRFR 0- /
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FILE NUMBER NRC DISTRIBUTION FDR PART 50 DOCKET MATERIAL                                                            ENVIRONtfENTAL TO      J.G. KEPPLER                        FROM:   INDIANA 6 MICHIGAN PWR. CO.                           DATE OF DOCUMENT BRIDGhfAN," MICHIGAN                                           3/28/77 R.W. JURGENSEN                                       DATE )E/E)VED
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~ 'TER                    QNOTOR IZED            PROP                  INPUT FORM                            NUMBER OF COPIES RECEIVED i ABORIGINAL                 C
PLANT NAME: COOK 8 1 SAB NFO RMAT I ON FOR ACTION/I SAFETY ASSIGNED AD: PROJECT MANAGER'IC ASST PRO C MA LIC ASST ISTRI BUTION INTERNAL D SYSTEMS SAFETY PLANT SYSTEMS SITE SAFE NRC PDR HEINEMAN TEDESCO SCHROEDER OELD GOSSICK 6 STAFF ENGINEERING IPPOLITO ERNST MIPC MACARRY BALLARD YOUNGBLOOD CASE BOSNAK OPERATING REACTORS SIHWEIL STELLO HARLESS PAWI.ICK SITE TECH OPERATING TECH GAMMILL PROJECT MANAGE fENT REACTOR SAFE EISENHUT STEPP BOYD ROSS HULMAN SITE ANALYSIS P~COLLINS HOUSTON NOVAK ROSZTOCZY PETERSON CHECK VOLLMER BUNCH J~COLLINS MELTZ HELTEMES AT&I SKOVHOLT SALTZMAN KREGER RUTBERG CONTROL NUM BE R EXTERNAL DISTR I BUTION NAT LAB~LPDR ULR KSON OR IC: REG V.IE 770)7DQ2$NSIC: ASLB: ACRS CYS LA PDR CONSULT S:/ET NRC FORM 196 I2.76)NRC FORth$95 tv.S.NUCLEAR REGULATORY C SSION 12-76)<<~NRC DISTRIBUTION FDR PART 50 DOCKET MATERIAL PN~+a ac'>~r a>>'44Vi.'',"~, IH 0~merloan INOIANA 8r MICHIGAN POWER COMPANY DONALD C.COOK NUCLEAR PLANT P.O.Box 458, Bridgman, Michigan 49106 Operating License DPR-58 Docket No.50-315 AEO 50-315/77-02 March 28, 1977 Mr..J.G.Keppler, Regional Director Office of Inspection and Enforcement U.S.Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137
                          ~CLASSIFIED J86QP Y DESCRIPTION                                                      ENCLOSURE I
LTR. CONFIRMING RELEPHONE CONVERSATION             CONGER ING ABN019fAL ENVIRONMENTAL OCCURRENCE OF THE                                                                 1 TOTAL RESIDUAL CHLORINE AT XHH CONDENSATE OUTLET EXCEEDING THE-0/10 ppm         LIMIT.....
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PLANT NAME: COOK 8         1 SAB SAFETY                                FOR ACTION/INFO RMATI ON ASSIGNED AD:
PRO    C    MA                                                  PROJECT   MANAGER'IC LIC ASST                                                                 ASST INTERNAL D ISTRI BUTION SYSTEMS SAFETY                 PLANT SYSTEMS                                 SITE SAFE NRC PDR                           HEINEMAN                       TEDESCO SCHROEDER OELD GOSSICK 6 STAFF                   ENGINEERING                     IPPOLITO MIPC                             MACARRY                                                                       ERNST CASE                             BOSNAK                                                                         BALLARD SIHWEIL                        OPERATING REACTORS                             YOUNGBLOOD HARLESS                           PAWI.ICK                       STELLO SITE TECH PROJECT MANAGEfENT                REACTOR SAFE                    OPERATING TECH                                 GAMMILL BOYD                              ROSS                            EISENHUT                                       STEPP P ~ COLLINS                       NOVAK                                                                          HULMAN HOUSTON                           ROSZTOCZY PETERSON                         CHECK                                                                         SITE ANALYSIS MELTZ                                                                                                            VOLLMER HELTEMES                          AT &  I                                                                        BUNCH J ~ COLLINS SKOVHOLT                         SALTZMAN RUTBERG                                                                        KREGER EXTERNAL DISTR I BUTION                                                             CONTROL NUMBE R LPDR                            NAT   LAB ~
IC:                           REG V.IE                       ULR KSON              OR NSIC:
ASLB:
LA PDR CONSULT       S:
770)7DQ2$
ACRS        CYS          /ET NRC FORM 196 I2.76)


==Dear Mr.Keppler:==
PN~+
~egu aery This is to confirm our telephone call to Mr.K.Baker-NRC Region III, at 1130 hours 90 March 28, 1977.During that conversation, we reported that an abnormal environmental occurrence had taken place at 2105 hours on March 26, 1977, when the total residual chlorine at the condensate outlet exceeded.the 0.10 ppm limit in violation of.Appendix"B".Technical Specifications Section 2.2.1.2.This letter should also be construed as the written report required by Technical Specification Section 5.4.2.1.The circulating water chlorination system was placed in service on March 22, 1977, with chlorine feed rate adjusted to maintain a total chlorine residual at 0.02 ppm.Total chlorine residual at the condenser outlet ranged from un-detectable to 0.02 ppm throughout the week with the system chlorinating twice per day on a 20 minute'ycle.
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On March 26, 1977, total chlorine residuals during the 0900 hour cycle were at 0.02 ppm;however, at the 2100 cycle, the total residual indicated 0.12 ppm at 2105 hours and immediately dropped back to 0.02 ppm at 2110 hours, remaining at this level until the end of the chlorination cycle.All chlorination cycles since this incident have indicated residuals of 0.02 ppm with the system still in automatic and at the same feed rate.Investigation has indicated no chlorination equipment mal-function nor any other concrete'evidence for this spike.The two most likely causes for this incident are (1)analytical error or (2)chlorine gas surge at the beginning of the ch'lorin-ation program.As all other chlorination cycles since March 22, 1977, showed no evidence of surging at the program start and y3~'I'i"$6 E'<<~'if' r ss Mr.J.G.Keppler March 28, 1977 Page Two the total residuals during the entire period were quite consistant in the 0.02 ppm range, analytical error is the most probable cause.I As the indicated residual-was only slightly above the maximum value for a very brief time period, it is felt that no adverse environmental impact occurred.Should you require further information, please contact me.Since rely,~o~R.W.Jurgensen Plant Manager'WJ/ng cc: R.S.Hunter J.E.Dolan R.Kilburn G.E.Lien R.J.Vollen, BPI K.R.Baker, RO: III P.W.Steketee, Esq.R.C.Callen R.Walsh, Esq.G.Olson R.S.Keith PNSRC File G.Charnoff, Esq.J.M.Henni gan Dir., IE (20 copies)'ir., MIPC (2 copies)(Di.rectorate of Licensing RECEIVEO 00CUthEHT PROCESSlHG UtilT 19(i APR 5,PM 12 le}}
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~merloan INOIANA 8r MICHIGANPOWER COMPANY                          Operating License DPR-58 DONALD C. COOK NUCLEAR PLANT                            Docket No. 50-315 P.O. Box 458, Bridgman, Michigan 49106 AEO 50-315/77-02 March 28, 1977 Mr.. J. G. Keppler, Regional Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region  III 799 Roosevelt Road                      ~egu aery Glen  Ellyn, Illinois      60137
 
==Dear Mr. Keppler:==
 
This is to confirm our telephone call to Mr. K. Baker - NRC Region III, at 1130 hours 90 March 28, 1977. During that conversation, we reported that an abnormal environmental occurrence had taken place at 2105 hours on March 26, 1977, when the total residual chlorine at the condensate outlet exceeded. the 0.10 ppm limit in violation of. Appendix "B" .
Technical Specifications Section 2.2. 1.2. This letter should also be construed as the written report required by Technical Specification Section 5.4.2.1.
The circulating water chlorination         system was placed in service on March 22, 1977, with chlorine feed rate adjusted to maintain a total chlorine residual at 0.02 ppm. Total chlorine residual at the condenser outlet ranged from un-detectable to 0.02 ppm throughout the week with the system chlorinating twice per day on a 20 minute'ycle. On March 26, 1977, total chlorine residuals during the 0900 hour cycle were at 0.02 ppm; however, at the 2100 cycle, the total residual indicated 0. 12 ppm at 2105 hours and immediately dropped back to 0.02 ppm at 2110 hours, remaining at this level until the end of the chlorination cycle. All chlorination cycles since this incident have indicated residuals of 0.02 ppm with the system still in automatic and at the same feed rate.
Investigation has indicated no chlorination equipment mal-function nor any other concrete 'evidence for this spike.
The two most likely causes         for this incident are (1) analytical error or (2) chlorine gas surge at the beginning of the ch'lorin-ation program. As all other chlorination cycles since March 22, 1977, showed no evidence of surging at the program start and
 
y3 ~'I'i "$ 6 E'<<~'if' r   ss Mr. J. G. Keppler March 28, 1977 Page Two the total residuals during the entire period were quite consistant in the 0.02 ppm range, analytical error is the most probable cause.
I As the indicated residual- was only slightly above the maximum value for a very brief time period,             it is felt that no adverse environmental impact occurred.
Should you require             further information, please contact me.
Since   rely,
~o~R. W. Jurgensen Plant Manager
                          'WJ/ng cc:     R. S.     Hunter J.     E. Dolan R.     Kilburn G. E.     Lien R. J.     Vollen,     BPI K. R.     Baker,     RO: III P. W.     Steketee,       Esq.
R.     C. Callen R.     Walsh, Esq.
G.     Olson R. S.     Keith PNSRC       File G.     Charnoff, Esq.
J.     M. Henni gan Dir.,
        'ir.,
(Di.rectorate IE (20 copies)
MIPC (2 copies) of Licensing
 
RECEIVEO 00CUthEHT PROCESSlHG UtilT 19(i APR 5,PM     12 le}}

Latest revision as of 19:45, 20 October 2019

03/28/1977 Letter Abnormal Environmental Occurrence of Total Residual Chlorine at the Condensate Outlet Exceeding the 0.10 Ppm Limit in Violation of Appendix B Technical Specifications Section 2.2.1.2
ML18219D517
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 03/28/1977
From: Jurgensen R
Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co)
To: James Keppler
NRC/IE, NRC/RGN-III
References
LER 1977-002-00
Download: ML18219D517 (6)
v • d • e


Text

NRC FORth 12-76) <<~ $ 95 tv.S. NUCLEAR REGULATORY C SSION DOC T NUMRFR 0- /

FILE NUMBER NRC DISTRIBUTION FDR PART 50 DOCKET MATERIAL ENVIRONtfENTAL TO J.G. KEPPLER FROM: INDIANA 6 MICHIGAN PWR. CO. DATE OF DOCUMENT BRIDGhfAN," MICHIGAN 3/28/77 R.W. JURGENSEN DATE )E/E)VED

~ 'TER QNOTOR IZED PROP INPUT FORM NUMBER OF COPIES RECEIVED i ABORIGINAL C

~CLASSIFIED J86QP Y DESCRIPTION ENCLOSURE I

LTR. CONFIRMING RELEPHONE CONVERSATION CONGER ING ABN019fAL ENVIRONMENTAL OCCURRENCE OF THE 1 TOTAL RESIDUAL CHLORINE AT XHH CONDENSATE OUTLET EXCEEDING THE-0/10 ppm LIMIT.....

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PLANT NAME: COOK 8 1 SAB SAFETY FOR ACTION/INFO RMATI ON ASSIGNED AD:

PRO C MA PROJECT MANAGER'IC LIC ASST ASST INTERNAL D ISTRI BUTION SYSTEMS SAFETY PLANT SYSTEMS SITE SAFE NRC PDR HEINEMAN TEDESCO SCHROEDER OELD GOSSICK 6 STAFF ENGINEERING IPPOLITO MIPC MACARRY ERNST CASE BOSNAK BALLARD SIHWEIL OPERATING REACTORS YOUNGBLOOD HARLESS PAWI.ICK STELLO SITE TECH PROJECT MANAGEfENT REACTOR SAFE OPERATING TECH GAMMILL BOYD ROSS EISENHUT STEPP P ~ COLLINS NOVAK HULMAN HOUSTON ROSZTOCZY PETERSON CHECK SITE ANALYSIS MELTZ VOLLMER HELTEMES AT & I BUNCH J ~ COLLINS SKOVHOLT SALTZMAN RUTBERG KREGER EXTERNAL DISTR I BUTION CONTROL NUMBE R LPDR NAT LAB ~

IC: REG V.IE ULR KSON OR NSIC:

ASLB:

LA PDR CONSULT S:

770)7DQ2$

ACRS CYS /ET NRC FORM 196 I2.76)

PN~+

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~merloan INOIANA 8r MICHIGANPOWER COMPANY Operating License DPR-58 DONALD C. COOK NUCLEAR PLANT Docket No. 50-315 P.O. Box 458, Bridgman, Michigan 49106 AEO 50-315/77-02 March 28, 1977 Mr.. J. G. Keppler, Regional Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road ~egu aery Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

This is to confirm our telephone call to Mr. K. Baker - NRC Region III, at 1130 hours0.0131 days <br />0.314 hours <br />0.00187 weeks <br />4.29965e-4 months <br /> 90 March 28, 1977. During that conversation, we reported that an abnormal environmental occurrence had taken place at 2105 hours0.0244 days <br />0.585 hours <br />0.00348 weeks <br />8.009525e-4 months <br /> on March 26, 1977, when the total residual chlorine at the condensate outlet exceeded. the 0.10 ppm limit in violation of. Appendix "B" .

Technical Specifications Section 2.2. 1.2. This letter should also be construed as the written report required by Technical Specification Section 5.4.2.1.

The circulating water chlorination system was placed in service on March 22, 1977, with chlorine feed rate adjusted to maintain a total chlorine residual at 0.02 ppm. Total chlorine residual at the condenser outlet ranged from un-detectable to 0.02 ppm throughout the week with the system chlorinating twice per day on a 20 minute'ycle. On March 26, 1977, total chlorine residuals during the 0900 hour0.0104 days <br />0.25 hours <br />0.00149 weeks <br />3.4245e-4 months <br /> cycle were at 0.02 ppm; however, at the 2100 cycle, the total residual indicated 0. 12 ppm at 2105 hours0.0244 days <br />0.585 hours <br />0.00348 weeks <br />8.009525e-4 months <br /> and immediately dropped back to 0.02 ppm at 2110 hours0.0244 days <br />0.586 hours <br />0.00349 weeks <br />8.02855e-4 months <br />, remaining at this level until the end of the chlorination cycle. All chlorination cycles since this incident have indicated residuals of 0.02 ppm with the system still in automatic and at the same feed rate.

Investigation has indicated no chlorination equipment mal-function nor any other concrete 'evidence for this spike.

The two most likely causes for this incident are (1) analytical error or (2) chlorine gas surge at the beginning of the ch'lorin-ation program. As all other chlorination cycles since March 22, 1977, showed no evidence of surging at the program start and

y3 ~'I'i "$ 6 E'<<~'if' r ss Mr. J. G. Keppler March 28, 1977 Page Two the total residuals during the entire period were quite consistant in the 0.02 ppm range, analytical error is the most probable cause.

I As the indicated residual- was only slightly above the maximum value for a very brief time period, it is felt that no adverse environmental impact occurred.

Should you require further information, please contact me.

Since rely,

~o~R. W. Jurgensen Plant Manager

'WJ/ng cc: R. S. Hunter J. E. Dolan R. Kilburn G. E. Lien R. J. Vollen, BPI K. R. Baker, RO: III P. W. Steketee, Esq.

R. C. Callen R. Walsh, Esq.

G. Olson R. S. Keith PNSRC File G. Charnoff, Esq.

J. M. Henni gan Dir.,

'ir.,

(Di.rectorate IE (20 copies)

MIPC (2 copies) of Licensing

RECEIVEO 00CUthEHT PROCESSlHG UtilT 19(i APR 5,PM 12 le

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