ML18081A765
| ML18081A765 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 12/06/1979 |
| From: | Mittl R Public Service Enterprise Group |
| To: | Parr O Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7912180530 | |
| Download: ML18081A765 (5) | |
Text
,- *o PS~G*
Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 201/430-7000 December 6~ 1979 Director of Nuclear Reactor Regulation
- u. S. Nuclear Regulatory Commission Washington, D. c.
20555 Attention:
Mr. Olan D. Parr, Chief Gentlemen:
Light Water Reactors Branch 3 Division of Project Management SECONDARY WATER CHEMISTRY CONTROL PROGRAM NO. 2 UNIT SALEM NUCLEAR GENERATING STATION DOCKET NO. 50-311 We are in receipt of your letter of July 31, 1979, requesting submittal of our proposed Secondary Water Chemistry Control Program, which is to be referenced in a condition to the Sal-em 2 operating licensing, and will replace any proposed tech-nical specifications on secondary water chemistry.
In re-sponse to your request, our proposed Secondary Water Chemis-try Control Program is hereby submitted as an attachment to this letter.
Should you have any questions in this regard, please do not hesitate to contact us.
Attachment HQl The Energy People Very truly jours, rf!a;---
R. L. Mittl General Manager -
Licensing and Environment Engineering and Construction 7912180 t)?j) 95-0942
PROPOSED SECONDARY WATER CHEMISTRY CONTROL PROGRAM NO. 2 UNIT SALEM NUCLEAR GENERATING STATION The Secondary Water Chemistry Control Program is designed to limit the corrosion of the tubing and internals of the steam generators.
The basis of the program is to control the levels of the critical parameters in the steam generator bulk water such that maximum protection to the steam genera-tors will be provided and tube integrity will be maintained.
This is accomplished by maintaining the water quality of the condensate polishing effluent and adjusting the blowdown on each of the four steam generators.
The feedwater and steam generator bulk water treatment consists of introducing ammo-nia for pH control and hydrazine for oxygen scavenging.
This treatment is recommended by the Westinghouse Electric Corporation.
CRITICAL PARAMETERS The critical parameters measured in each of the four steam generator blowdown samples include:
pH, cation conductiv-ity, chloride and free hydroxide.
The critical parameters measured in the condensate polishing effluent include:
cation conductivity and sodium.
CONTROL POINTS Normal limits of control are identified in Table 1.
SAMPLING SCHEDULE The samp.ling schedule selected to maintain the critical par-ameters within the normal limits of control as indicated on Table 1 consists of obtaining and analyzing blowdown samples from each of the steam generators, four times in each seven day period, with no more than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> between samples.
The sample frequency will be increased when the normal limits of control are exceeded to assure that the Unit is operated within the limiting specifications as indicated on Table 2.
MEASUREMENT METHODS The critical paramet~rs are measured as follows:
Meters -
pH, cation conductivity, sodium Titrations -
chlorides and free hydroxides SAMPLING LOCATION Periodic samples are obtained as* indicated in the sampling schedule from each of the four steam generators as well as the condensate polishing effluent.
DATA MANAGEMENT The steam generator analysis is recorded on the daily read-ing sheet.
The Technical Supervisor in charge of the Sec-ondary Water Chemistry Control Program has the specific re-sponsibility to direct the program.
The data is reviewed by the Senior Performance Supervisor in charge of Chemistry as well as the Station Performance Engineer.
Periodically, the data is reviewed by the General Office of the Electric Pro-duction Department as well as the Westinghouse Electric Cor-poration.
The daily reading sheets are incorporated into the permanent Station records.
CORRECTIVE ACTIONS Whenever the normal limits of control are exceeded, the Sen-ior Performance Supervisor in charge of Chemistry and the Station Performance Engineer will review the data and initi-ate the necessary corrective actions to return the Secondary Water Chemistry to within the normal control limits as quickly as possible.
The off-control point chemistry must be returned to within the normal limits Qf control in the times specified in the limiting specifications contained in Table 2.
In the event that the limiting specifications cannot be maintained, the data will be reviewed by the Station Manager who will initi-ate additional corrective actions which can include removing the Unit from service if conditions warrant this course of action.
M P79 54 06 Water Sample Location Condensate Polishing Effluent Steam Generator Blowdown M P79 54 06 3 Cation TABLE 1 SALEM NUCLEAR GENERATING STATION SECONDARY WATER CHEMISTRY NORMAL LIMITS OF CONTROL Conductivity MHOS/CM at 25°C pH at 25°C
< 0.1 N/A
< 2.0 8.5-9.2 c-.
Free Sodium Chloride Hydroxide PPB PPM PPM
< 1.0 N/A N/A __
N/A
< 0.15
< 0.15
Water Sample Location Condensate Polishing Effluent Steam Generator M P79 54 06 4 TABLE 2 SALEM NUCLEAR GENERATING STATION SECONDARY WATER CHEMISTRY LIMITING SPECIFICATIONS Period to Return to within Normal Limits of Control Control Parameter 14 days 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Immediate Cation Conductivity, MHOS/CM at 25°C N/A N/A N/A Sodium, PPB N/A N/A N/A Cation Conductivity, MHOS/CM at 25°c
> 2. 0 but < 120 N/A
> 120 pH at 25°c 8.0 - 9.4 N/A
< 8.0 or > 9.4 Chloride, PPM N/A
> 0.15 but < 1.0
> 0.15 but < LO
> LO
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