ML18018B603

Forwards Addl Info Re Svc Water Sys Effluent Monitoring,In Response to SER Open Item 11 from Meteorology & Effluent Treatment Branch

ML18018B603
Person / Time
Site:	Harris
Issue date:	03/22/1984
From:	Mcduffie M CAROLINA POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
NLS-84-122, NUDOCS 8403290134
Download: ML18018B603 (11)

Text

• ~REGULATORY I RMATION DISTRIBUTION SYS (RIDS)ACCESSION NBR;8403290134 OOCeOATE: 84/03/22 NOTARIZED'O

, DOCKET FACIL:50-400 Shearon Harris Nuclear Power Plant<Unit 1<Carolina 05000400 AUTH BYNAME AUTHOR AFFILIATION MCDUFFIE~M

~A, Carolina Power L Light Co.PECIP~NAME RECIPIENT AFFILIATION DENTONrH~RE Office, of Nuclear Reactor Regulationq Director

SUBJECT:

Forwards addi info re svc water sys e.ffluent monitoring~in response to SER Open Item 11 from Meteorology 8 Eff'luent Treatment Branch.DISTRIBUTION CODE B001S COPIES RECEIVED!LTR ENCL~SIZEe J TITLE: Licensing Submittal:

PSAR/FSAR Amdts L Related Correspondence NOTES!RECIPIENT IO CODE/NAME NRR/DL/ADL NRR LB3 LA INTERNALS ELD/HDS1 IE/DEPER/EPB 36 IE/DQA SIP/QAB21 NRR/DE/CEB 11 NRR/DE/EQB 13 NRR/DE/MEB 18 NRR/DE/SAB 24 NRR/OHFS/HFEB40 NRR/DHFS/PSRB NRR/DS I/AE8 26 NRR/DSI/CPS 10 NRR/DSI/ICSB 16 NRR/DSI/PSB 19 NRR/DS I/RSB 23 RGN2 EXTERNAL;ACRS 41 DM&/DSS (AMDTS)LPOR 03 NSIC 05 COPIES LTTR ENCL 1 0 1 0 1 0 3 3 1 1 1 2 2 1 1 1 1 1 1 1'1 1 1 1=1 1 1 3 3 6 1 1 1 RECIPIENT ID CODE/NAME NRR LB3 BC BUCKLEY'S 01 IE.FILE IE/DEPER/IRB 35 NRR/DE/AEAB NRR/DE/EHEB NRR/DE/GB 28 ,NRR/DE/MTEB 17 NRR/DE/SGEB 25 NRR/DHFS/LQB 32 NRR/DL/SSPB NRR/DSI/ASB NRR/DSI/CSB 09 NRR/DSI/METB 12 NRR RAB 22 G-FIL 04 AMI/MI8 BNL{AMDTS ONLY)FEMA REP DIV 39 NRC PDR 02 NTIS COPIES LTTR ENCL 1 0 1 1 1 1 1 1 1 0 1 1 2 2 1 1 1 1 1 1 0.1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 TOTAL NUMBER OF COPIES REQUIRED: LTTR 53 ENCL'6

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Dear Hr.Denton:

Carolina Power&Light Company (CP&L)hereby submits additional information concerning the Shearon Harris Nuclear Power Plant Service Water System Effluent Monitoring.

This information is in response to Safety Evaluation Report (SER)Open Item ll from the lieteorology and Effluent Treatment Branch.If you have further questions or require additional information, please contact our staff.Yours very truly,++7k~ki.A.HcDuffie Senior Vice President Nuclear Generation GAS/cfr (9699NLU)Attachment Cct Hr.B.C.Buckley (NRC)Hr.J.J.Hayes (NRC-11ETB)

Hr.G.F.Maxwell (NRC-SHNPP)

Hr.J.P.O'Reilly (NRC-RII)Hr.Travis Payne (KUDZU)Nr.Daniel F.Read (CHANGE/ELP)

Chapel Hill Public Library Wake County Public Library Hr.Wells Eddleman Dr.Phyllis Lotchin Nr.John D.Runkle Dr.Richard D.Wilson Hr.G.0.Bright (ASLB)Dr.J.H.Carpenter (ASLB)Hr.J.L.Kelley (ASLB)8403290i34 840322 PDR ADQCK 05000400 E PDR 411 Fayetteville Street o P.O.Box 1551 o Raleigh, N.C.27602 r 1 Shearon Harris Nuclear Power Plant SER Open Item 11 Nonitorin of the Service Water S stem~Oen Item The service water system, waste processing building cooling water system, and RAB backwash return line are not monitored downstream of all potential radioactive Y~uts to the system.The liquid monitor for the emergency fan coolers is not'adequate for the service water system.~Ree once: The service water system shown on FSAR Pigure 9.2.1-1 normally discharges to the closed cycle circulating water system shown on FSAR Figure 9.2.1-2.As shown on FSAR Figure 9.2.1-2, there are two inputs of service water to the circulating water system;those systems using service water in the RAB and those systems in the WPB shown on FSAR Pigure 9.2.10-1.The present design uses one off-line liquid radiation monitor (tag numbers REH-3500 A, B, C, or D)for each of the four (4)discharge lines of the containment fan coolers.To meet NRC requests the following new design is provided: Off-line liquid radiation monitors REN-3500A and REH-3500B, which monitor the discharges of fan coolers AH-1 and AH-2, will be relocated to the service water lines discharging into the circulating water system.Liquid radiation monitor REN-3500A will be relocated to line 7SW24-544-1 in the WPB prior to valve 7SW-B44-1 shown on FSAR Figure 9.2.1-2.Liquid radiation monitor REN-3500B will be relocated to line 7SW42-1-1 in the turbine building after valve 7SW-B53-1 shown on FSAR Figure 9.2.1-2.Liquid radiation monitors REN-3500C and REN-3500D will be deleted.Liquid radiation monitors REH-3500A and REH-3500B are described in FSAR Sections 11.5.2.5.7 and 11.5.2.6.2, which include information on detector capability, sensitivity, and range.As stated in PSAR Section 11.5,1.3, liquid radiation monitors are provided with grab sample capability.

The service water system, downstream of all inputs, will be monitored continuously prior to discharge to the circulating water system.Attached is a sketch showing the affected lines from FSAR Figure 9.2.1-2 and the new locations of liquid radiation monitors REN-3500A and REH-3500B.

Draft pages for PSAR Section 11.5.2.7.1 and FSAR Table 11.5.2-2 have also been attached for your information.

PSAR Figure 9.2.1-2, PSAR Section 11.5.2.7.2.1, and FSAR Table 11.5.2-2 will be formally revised in a future PSAR amendment to incorporate this response.

t~'t V'P'a(j~)p<<<<'~i~i+P W(P SHNPP FSAR The monitor provides an alert and high radiation ala.': 'a levels reach preset limits.The receipt of these alarms wi'll alert the operator to the presence of leakage so that additional radiation surveys, sampling, and equipment isolation can be'ffected in order to locate and repair the leakage source.11.5.2.7.1.5 Waste Processing Building (WPB)Cooling Water System Monitors The WPB cooling water system monitor provides an indication to operations personnel of radioactive inleakage into the WPB Cooling Water System.The liquid monitor, described in Section 11.5.2.6.2, is located on the inlet to the WPB cooling water heat exchangers.

5 The monitor provides an alert and high radiation alarm when concentration levels reach preset limits.The vent valve on the WPB cooling water surge tank automatically closes on a radiation alarm from the WPB cooling water monitor.11.5.2.7.1.6 Gas Decay Tank Monitors The gas decay tank radiation monitor is located in the line from the gas decay tanks to,the compressor suction header.The monitor allows the operator to measure the radiation from the circulating gas stream from the gas decay tank in operation.

r'",-':~;-.,The noble'gas radiation monitor'is described in Section 11.5.2.6.6.

A heat exchanger.

is provided.IO 11.5.2.7.2 Effluent Radiological Monitoring System See Table 11.5.2-2 for operating information on the effluent radiological monitors.1 11.5.2.7.2.1 Service Water System Monitors'Section 11.5.2.3)and provide an indication to operationC person o the activity in the Service Water System, downstream of each e emergency containment fan coolers.These monitors detect active leakage from the Component Cooling Water System into the ce Water System, and as such provide additional assurance th ioactivity will not be released undetected from the pla ach of the four emergency containment fan coolers per unit is mo e using the liquid monitors described in Section 11.5..Heat exchangers are provided to cool the sample before it is WN SE'RT'The monitors provide a high radiation alarm when concentrations reach preset limits.The receipt of these alarms will alert the operator to the presence of leakage.11.5.2-14"-Amendment No.5

~~p4 INSERT A The service water radiation monitors are used to detect leakage of radio-activity into service water that cools systems which may become contaminated with radioactivity.

The service water system will not be a source of routine radioactivity release.The service water system is separated from potentially contaminated systems by at least one barrier and one other monitored cooling systems (i.e.iCCW and WPCCW System)or one barrier and a positive pressure differential (2 e.containment fan coolers and WPB HVAC chiller, liquid radiation monitors).

Both the CCW and WPCW Systems are monitored.

To ensure that any potential radioactive contamination into the service water system is monitored prior to release to the environment, the service water from the WPB and RAB will be monitored before discharge into the circulating water system.Grab sampling capability is provided on the monitors as described in Section 11.5.

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