ML14007A081

Response to NRC Request for Additional Information, Dated November 21, 2013, Related to the Byron and Braidwood Stations, Units 1 and 2 License Renewal Application, Byron Station Applicants Environmental Report. Part 12 of 15

ML14007A081
Person / Time
Site:	Byron, Braidwood
Issue date:	12/19/2013
From:	Exelon Generation Co, Exelon Nuclear
To:	Office of Nuclear Reactor Regulation
Shared Package
ML14007A078	List: ML14007A080 ML14007A081 ML14007A082 ML14007A083 ML14007A084 ML14007A085 ML14007A086 ML14007A088 ML14007A089 ML14007A090 ML14007A091 ML14007A092 ML14007A094 ML14007A105 RS-13-282, Response to NRC Request for Additional Information, Dated November 21, 2013, Related to the Byron and Braidwood Stations, Units 1 and 2 License Renewal Application, Byron Station Applicants Environmental Report. Part 4 of 15
References
RS-13-282
Download: ML14007A081 (55)

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Exelm n Exyron Geneation CopnU wwexelonch

-'-1 Nuclear Byron Station 4450 North German Church Road Byron. IL 61010-9794 November 19, 2009 LTR:

BYRON 2009-0129 File:

2.09.0411 1.10.0101 Illinois Environmental Protection Agency Water Pollution Control Compliance Assurance Section #19 1021 North Grand Avenue East P.O. Box 19276 Springfield, IL 62794-9276 Subject-Byron Station Monthly Discharge Monitoring Report In accordance with National Pollutant Discharge Elimination System (NPDES) Permit Number IL0048313, issued September 8, 2000, we are submitting the Discharge Monitoring Report for Byron Station, Units I and 2. This report covers the period of October 1, 2009 through October 31,2009.

If there are any questions regarding this report, please contact Mr. Stanley Kerr, Chemistry Manager, at (815) 406-3200.

Respectfully, Bra1dley.1 Adam Plant Manager Byron Nuclear Generating Station BJANZC/sdk Attachments

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ATrACHMENT TO COOLING SYSTEM BLOWDOWN LINE (Outfall 001)

DISCHARGE MONITORING REPORT For Exelon Byron Station Permit UL0048313 October 2009 BLOWDOWN TEMPERATURE MONITORING:

Date Calculated Maximum Allowable Blowdown Temp. (Degrees F)

Maximum Actual Blowdown Temp.

(Degrees F) 10/03/09 10/10/09 10/17/09 10/24/09 10/31/09 120 120 120 120 120 73.8 73.0 77.1 79.7 75.0 Note: Station procedures derive the Calculated Maximum Allowable Blowdown Temperature based on existing Rock River temperature and a calculated maximum river temperature increase. When the arithmetic sum of these values exceeds 120 degrees Fahrenheit, the Calculated Maximum Allowable Temperature limit defaults to 120 degrees Fahrenheit.

HYDRAZINE MONITORING:

There were no steam generator chemical cleaning solutions (or associated rinses) containing hydrazine discharged to the Cooling System Blowdown during the month of October 2009.

TOTAL QUANTITY DISCHARGED:

N/A TOTAL DURATION OF DISCHARGE:

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ATTACHMENT TO COOLING SYSTEM BLOWDOWN LINE (Outfall 001)

DISCHARGE MONITORING REPORT (Page 2)

For Exelon Byron Station Permit IL0048313 October 2009 COMMENTS:

1.

The weekly halogen concentration curves and daily halogen dosing time reports are attached.

2.

Bromine was not used this month.

3.

There was no discharge of steam generator chemical cleaning wastewater containing hydrazine in this month.

4.

Flow existed through this outfall 31 of 31 days.

k:byr-chUMondbXckrkVAonddyDMRaft2tWlWobcrO9

EXELON BYRON STATION Permit [L0048313 WEEKLY HALOGEN DOSING INFORMATION DDL*

(Minutes) 10/01/09 40 40 10/02/09 40 40 10/03/09 45 40 10/04109 40 40 10105/09 40 40 I69 40 40 10/07/09 40 40 10/0&/09 40 39 10/09/09 40 40 10/10/09 40 40 0/1I1/09 40 40 HALOGEN DOSING CURVE Concentration of total residual chlorine/ialoen vs. minutes of chlorination period.

Date: 10/05/09 Time: 10:14 Analyzed by: J. D.

Reviewed by: D. M.

Unit: 2 Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L. All values less than this limit are reported for information only.

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EXELON BYRON STATION Permit 1L0048313 WEEKLY HALOGEN DOSING INFORMATION 2=atLieT (Minutes) 1 V01 10/12109 30 30 10/13/09 30 30 10/14/09 30 30 10/15/09 30 30 10/16/09 30 30 10/17/09 30 30 10/ 18M0 34 32 HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: 10/12/09 Time: 11:49 Analyzed by: J. D.

Reviewed by: D. M.

Unit: I Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L. All values less than this limit are reported for information only.

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Date: 10/19/09 Time: 10:58 Analyzed by: T.M.

Reviewed by: D. M.

Unit: 2 Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L All values less than this limit are reported for information only.

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EXELON BYRON STATION Permit [L0048313 WEEKLY HALOGEN DOSING INFORMATION (Minutes)

_IL U-2 10/26/09 30 35 10/27/09 30 30 10/28/09 30 30 10/29/09 30 30 10/30/09 32 32 10/31/09 32 33 HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: 10/26/09 Time: 10:45 Analyzed by: J. W.

Reviewed by: D. M.

Unit: I Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L All values less than this limit are reported for information only.

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Exelon.

ExeGon Generation Company,. LLC www.exeloncorp.com Nuclear Byron Station 4450 North German Church Road Byron, IL 61010-9794 December 17,2009 LTR:

BYRON 2009-0133 File:

2.09.0411 1.10.0101 Illinois Environmental Protection Agency Water Pollution Control Compliance Assurance Section #19 1021 North Grand Avenue East P.O. Box 19276 Springfield, IL 62794-9276 Subject Byron Station Monthly Discharge Monitoring Report

'In accordance with National Pollutant Discharge Elimination System (NPDES) Permit Number 1L-0048313, issued September 8, 2000, we are submitting the Discharge Monitoring Report for Byron Station, Units I and 2. This report covers the period November 1, 2009 through November 30, 2009.

If there are any questions regarding this report, please contact Mr. Stanley Kerr, Chemistry Manager, at (815) 406-3200.

Respectfuly, BradlF J. Adams Plant Manager Byron Nuclear Generating Station BJA/ZC/sdk Attachments

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ATTACHMENT TO COOLING SYSTEM BLOWDOWN LINE (Outfall 001)

DISCHARGE MONITORING REPORT For Exelon Byron Station Permit IL0048313 November 2009 BLOWDOWN TEMPERATURE MONITORING:

Date 11/07/09 11/14/09 11/21/09 11/28/09 Calculated Maximum Allowable Blowdown Temp. (Degrees F)

Maximum Actual Blowdown Temp.

(Degrees F) 120 120 120 120 85.4 80.9 76.7 77.6 Note: Station procedures derive the Calculaed Manumm Allowable Blowdown Temperature based on existing Rock River temperature and a calculated maximum river temperature increase. When the arithmetic sum of these values exceeds 120 degrees Fahrenheit. the Calculated Maximum Allowable Temperature limit defaults to 120 degrees Fahrenheit.

HYDRAZINE MONITORING:

There were no steam generator chemical cleaning solutions (or associated rinses) containing hydrazine discharged to the Cooling System Blowdown during the month of November 2009.

TOTAL QUANTITY DISCHARGED:

N/A TOTAL DURATION OF DISCHARGE:

N/A k:byr-ch~bymndb~ceModdyDMR~attadtOi\\Nov

q.

ATTACHMENT TO COOLING SYSTEM BLOWDOWN LINE (Outfall 001)

DISCHARGE MONITORING REPORT (Page 2)

For Exelon Byron Station Permit II0048313 November 2009 COMMENTS:

1.

The weekly halogen concentration curves and daily halogen dosing time reports are attached.

2.

Bromine was not used this month.

3.

There was no discharge of steam generator chemical cleaning wastewater containing hydrazine in this month.

4.

Flow existed through this outfall 30 of 30 days.

k:byrtchbynd&Ia~koaddyDMRaat WIVNovO9

EXELON BYRON STATION Permit IL0048313 WEEKLY HALOGEN DOSING INIFORMATION Datel

(,Minutes) 11/01/09 30 30 11/02/09 30 32 11/03/09 30 30 11/04/09 31 31 11/05/09 32 31I 11/06/09 30 30 11107/09 30 30 11/08/09 30 30 HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: I1 [02/09 Time: 11:13 Analyzed by: G.S.

Reviewed by: D. M.

Unit: 2 Note:

The limit of detection for the imtrument as tested in the Station Laboratory is 0.02 mg/L All values less than this limit are reported for information only.

0.

0 25 50 75 100 125 Minutes 150

. q'a EXELON BYRON STATION Permit 1.0048313 WEEKLY HALOGEN DOSING INFORMATION (Minutes) 11/09/09 30 30 SI/l(109 30 30 11112/09 30 30 11/12/09 31 30 11/13/09 33 31 11/14109 28 29 11/15/09 30 22 HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: 11/09/09 Time: 12:20 Analyzed by: D. C. A.

Reviewed by: D. M.

Unit: I Note:

The limit of detection for the insatrument as tested in the Station Laboratory is 0.02 mg/L All values less than this limit are reported for information only.

0.14

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0 25 50 75 Minutes 100 125 15040

I-EXELON BYRON STATION Permit IL.048313 WEEKLY HALOGEN DOSING INFORMATION (Minutes)

U-I IU-2 11/16109 25 25 11/17/09 25 25 11/18/09 21 17 11/19/09 18 18 11/20/09 18 18 11/21/09 18 18 i 1/22109 20 1

19 HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: 11/18/09 Time: 10:28 Analyzed by: J.W.

Reviewed by: D. M.

Unit: 2 Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L. All values less than this limit are reported for information only.

(

f 0

0 25 50 75 100 125 Minutls 150

It EXELON BYRON STATION Permit IL0048313 WEEKLY HALOGEN DOSING INFORMATION D[LI (Minutes) 11/23/09 28 25 11/24/09 27 24 11/25/09 17 17 11/26)09 16 16 11/27/09 17 17 11t28/09 25 25 11/29/09 25 25 1113/309 20 20

- EMM=

HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: 11/23/09 Time: 11: 11 Analyzed by: M. K.

Reviewed by: D. M.

Unit: I Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L. All values less than this limit are reported for information only.

0.50 0.48 0.46 0.44 0.42 0.40 0.38 0.368 0.34 0.32 0.30 0.28 0.26 0.24 0.22 0.20 0.18 0.16 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0.00

'ntI

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25 50 75 Minutes 100 125 1is0@

JExelon,..

Exelon Generation Comp*ny, iLC www.exeloncorp.com Nuclear Byron Station 4450 North German Church Road Byron, IL 61010-9794 January 21, 2010 LTR:

BYRON 2010-0011 File:

2.09.0411 1.10.0101 Illinois Environmental Protection Agency Water Pollution Control Compliance Assurance Section #19 1021 North Grand Avenue East P.O. Box 19276 Springfield, IL 62794-9276

Subject:

Byron Station Monthly Discharge Monitoring Report In accordance with National Pollutant Discharge Elimination System (NPDES) Permit Number S

110048313, Issued September 8, 2000, we are submitting the Discharge Monitoring Report for Byron Station, Units 1 and 2. This report covers the period of December 1, 2009 through December 31, 2009.

Special Condition 5 of the NPDES permit requires the station to weigh the copper anodes at the end of the zebra mussel control season and to Include the total mass of copper used in the discharge monitoring report. The zebra mussel copper ion skids were shutdown on December 2, 2009. The anodes of the OA copper Ion skid were removed and weighed on January 8, 2010. The anodes of the OB copper ion skid were removed and weighed on January 8, 2010. The total mass of copper used for zebra mussel control was 214 pounds.

If there are any questions regarding this report, please contact Mr. Stanley Kerr, Chemistry Manager, at (815) 406-3200.

Respectfully, Da Zel

.Enih Site

'*ice President Byron Nuclear Generating Station DJE/ZC/sdk Attachments

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ATTACHMENT TO COOLING SYSTEM BLOWDOWN LINE (Outfall 001)

DISCHARGE MONITORING REPORT For Exelon Byron Station Permit IL.0048313 December 2009 BLOWDOWN TEMPERATURE MONITORING:

Date Calculated Maximum Allowable Blowdown Temp. (Degrees F)

Maximum Actual Blowdown Temp.

(Degrees F) 12/05109 12/13/09 12/19109 12/26/09 120 120 120 120 68.4 70.5 67.2 64.0 Note: Station procedures derive the Calculated Maximum Allowable Blowdown Temperature based on existing Rock River temperature and a calculated maximum river temperatum increase. When the arithmetic sum of these values exceeds 120 degrees Fahrenheit, the Calculated Maxinum Allowable Temperature limit defaults to 120 degrees Fahrenheit.

HYDRAZINE MONITORING:

There were no steam generator chemical cleaning solutions (or associated rinses) containing hydrazine discharged to the Cooling System Blowdown during the month of December 2009.

TOTAL QUANTITY DISCHARGED:

N/A TOTAL DURATION OF DISCHARGE:

N/A k:byr-cb\\byrundb\\ckrk\\MonthlyDMR\\abwW[\\Deco9

ATTACHMENT TO COOLING SYSTEM BLOWDOWN LINE (Outfall 001)

DISCHARGE MONITORING REPORT (Page 2)

For Exelon Byron Station Permit [10048313 December 2009 COMMENTS:

1.

The weekly halogen concentration curves and daily halogen dosing time reports are attached.

2.

Bromine was not used this month.

3.

There was no discharge of steam generator chemical cleaning wastewater containing hydrazine in this month.

4.

Flow existed through this outfall 31 of 31 days.

k:byr-chymn&kkrkMoniblyDMRUuacbOlU)ocO9

EXELON BYRON STATION Permit I1.0048313 WEEKLY HALOGEN DOSING INFORMATION (Minutes) 12101/09 18 18 12/02/09 18 18 12/03/09 20 20 12/04/09 18 18 12/05/09 18 18 12/06/09 18 18 HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: 12/02/09 Time: 11:20 Analyzed by: D.L.

Reviewed by: D. M.

Unit: 2 Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L All values less than this limit are reported for information only.

I I

5 0

25 50 75 100 125 Minutes 150

EXELON BYRON STATION Permit 1L0048313 WEEKLY HALOGEN DOSING INFORMATION Da*

Dpsina Time (Minutes) 12/07/09 20 20 12A/8&09 20 20 2/09/09 20 20 12/10/09 20 20 12/I11/09 0

0 12/12/09 0

0 12/13/09 0

0 HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: 12A)7/09 Time: 12:40 Analyzed by: G.S.

Reviewed by: D. M.

Unit: I Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L. All values less than this limit are reported for information only.

6 0

25 50 75 100 125 Minutm 150

EXELON BYRON STATION Permit [L0048313 WEEKLY HALOGEN DOSING INFORMATION Date Dosin Time (Minutes)

Iu-t 12/14/09 20 20 12/15/09 16 20 12/16(09 20 20 12/17/09 20 20 12/18109 20 20 12/19/09 18 18 12/20/09 18 19 HALOGEN DOSING CURVE Concentration of total residual chlorineihalogen vs. minutes of chlorination period.

Date: 12/14/09 Time: 11:45 Analyzed by: E. G.

Reviewed by: D. M.

Unit: I Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L All values less than this limit are reported for information only.

0 25 50 75 100 125 Mlnuts 150

EXELON BYRON STATION Permit IL0048313 WEEKLY HALOGEN DOSING INFORMATION (Minutes) 12/21/09 18 19 12/22/09 19 19 12/23/09 18 17 12/24/09 18 18 12/25/09 20 20 12/26/09 20 20 12/27/09 20 20 HALOGEN DOSING CURVE Concentration of total residual chlorine/halogen vs. minutes of chlorination period.

Date: 12/21/09 Time: 13:36 Analyzed by: J.W.

Reviewed by: M. H.

Unit: I Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L All values less than this limit are reported for information only.

6 0

25 50 75 100 125 Mlnutm 150

EXELON BYRON STATION Permit 1L0048313 WEEKLY HALOGEN DOSING INFORMATION (Minutes)

UIL U-2 12128&09 17 16 12/29/09 17 17 12/30/09 20 18 12/31/09 17 18 HALOGEN DOSING CURVE Concentration of total residual chlorineIhalogen vs. minutes of chlorination period.

Date: 12/28/09 Time: 13:03 Analyzed by: M.P.

Reviewed by: D. M.

Unit: 2 Note:

The limit of detection for the instrument as tested in the Station Laboratory is 0.02 mg/L. All values less than this limit are reported for information only.

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