ML18060A207

St. Lucie, Units 1 and 2, Offsite Dose Calculation Manual

ML18060A207
Person / Time
Site:	Saint Lucie
Issue date:	02/15/2017
From:	Florida Power & Light Co
To:	Office of Nuclear Reactor Regulation
References
Download: ML18060A207 (4)

Text

ENCLOSURE3 -c-200,-oFFSITE DOSE CALCULA~TION MANUAL REVISION 48 (PCR 2184721) AND REVISION 49 (PCR 2137189) CHANGE PAGES (4 PAGES includes blank page)

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REFERENCE

USE Curre.ntRevisiq'~'N-0. FPL 48 Title: -OFFSITE DOSE~CAL-CULATION MAN-UAL {ODCM) Responsible Department: CHEMISTRY REVISION SUMMARY: Preparedness Review. Revision 48-lncorporated PCR 2184721 to ade note to cover page ensurin§ that changes to the-ODCM are reviewed by EP. (Author: N. Davidson) Revision 47 -Incorporated PCR 2174317 to correct location on map in the AREOR. (Author: N. Davidson) Revision 46 -Incorporated PCR 2146572 to update procedure number reference. (Author: N. Davidsonl -Revision 45 -lncorporated-PCR 2067790 for addition of Unit-1 and 2 containment-equipment hatch monitoring as potential effluent pathways dur-ing outages. CA-uthor: J. Hunt) Revision 44 -Incorporated PCR 197 4178 to implement changes documented in EC 277011 for rep~acement-of U1 PV Radiation Monitor. Updated monitor channel IDs. The new tJ1 PV Mirian MGP Radiation Monitor does not have a particulate, iodine, or mid range gas deteGtor channet (Author: J. Hunt) Revision Approved By Approval Date UNIT# DATE 0 C.M. Wethy 04/27/82 DOCT PROCEDURE DOCN C-200 SYS 48 M. DiMarco 02/15/17 STATUS COMPLETED REV 48 #OF PGS C 0 . *---c 2 Q) C E Q) :J Eu *>-:J 0 ...J t.) -0 0 L.. -Z -a O ....I OIDX-<C Cl Q) -ZC'O t:: Cll CZ -0 .r. *--t.) ~ -g -= Cll_.;:. .::; C C a:: .Q 8 =* Cl) v*5 co u. Q) .r. z L.. :!= 0 -c-3= w 0:: *c _,...._ -0 !:I: u. --g 0:: Q) t.) UJ c.. > Q) c.. UJ ._ Cll f- <( <ii:.::-0 O'.l *---1 Procedfffe: Np. ST. LUCIE PLANT CHEMISTRY OPERATING PROCEDURE CurrenfRevisicfntNo. FPL Iitle: SAFETY R~LA TED

REFERENCE

USE 49 o-FFSITE DOSE CALCULATION MANUAL (ODCM) _ Responsible Department: CHEMISTRY

• REVISION SUMMARY: NOTE All changes to this procedure requ~re an E_mergenc Preparedness Re.view. Revision 49 -Incorporated PCR 2137189 per EC 278372 to update values in Methodology -section. (Author: T. Bertolinir Revision 48 -Incorporated PCR 2184721 to add note to cover page ensuring that changes to the ODCM are reviewed by EP. (Author: N. Davidson) Revision 47 -Incorporated PCR 2174317 to correct location on map in the AREOR. (Author:-N~ Davidson) Revision 46-!ncorporated PCR 2146572 to update procedure number reference. -:1_ (Author: N. Davidson) Revision 45 -Incorporated PCR 2067790 for addition of Unit 1 and 2 containment equipment hatch monitoring as potential effluent pathways during Gutages. (Author: J. Hunt) Revision 44--Incorporated .PCR 197 4178 to implement changes documented in EC 277011 for replacement of U1 PV Radiation Monitor. Updated monitor channel IDs.The-new U1 PV -Mirian MGP Radiation Monitor-does not have a particulate, iodine,-or mid range gas detector channel. (-Author: J. Hunt) Revision Approved By Approval Date UNIT# DATE 0 C.M. Wethy 04/27/82 DOCT PROCEDURE DOCN C-200 SYS 49 W. Parks 08/09/17 STATUS COMPLETED REV 49 # OF PGS L REVISION NO.: PROCEDURE TITLE: 49 OFFSITE DOSE CALCULATION MANUAL (ODCM) -------PROCEDURE NO.: C-200 ST. LUCIE PLANT METHODOLOGY-SECTION 2.2 Determining the Total Body and Skin Dose Rates for Noble Gas Releases And Establishing Setpoints for Effluent Monitors (continued) 1. (continued) C. (continued) Unit 2 Fuel Building: The 10,000 cpm High Setpoint is based on an Infant's Maximum Exposed Organ Dose Rate (Liver) from Inhalation of Cs-137-at the Site Boundary-. The value-of 10,000 cpm is very conservative.relative to the site dose rate limit of 1500 mrem[yr. The methodology-is based on measured particulate channel count rates when detector was calibrated with a known source activity of-cs-137, and on default assumptions as follows: 1. The particulate channel read 39,782 ccpm when exposed to a 7.59 uCi source of Cs-137 (decayed to June 19, 1996 data). 2. Assuming that 7.59 uCi ofCs-137 were collected during 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> of skid sample collection (fixed filter), the typical sample volume would yield z1..08E+06-cc's. Greater than 99% sample fitterefficiency is assumed. -:3. 1he maximum building process flow e~haust is -31,584 cfm. 4. Q(dot) for Cs-~ 37 uCi/sec release rate is approximately 21 uCi/sec as follows: 7.59 uCi x hour x 28317 cc's x 3l584 ft3 x min = 27.72 uCi hour 4.08E+06cc.s ft3 mi-n 60 sec sec 5. The default historical (X/Q)d for the worst.sector (NVJ) at the site boundary is 1.3E-06 meters/sec. 6. The E.lose rate (equivalent to 10,000 cpm) is calculated per ODCM Section 2.3 Inhalation Dose Rate to an Infant. The resulting dose rates yield. Bone Liver mrem/yr mrem/yr 6.21 E+OO 6.62E+OO Thyroid mrem/yr OE+OO Kidney Lung mrem/yr mrem/yr 3.52E+OO 8.56E+OO GI-LLI mrem/yr 1.2E+OO W.Body mrem/yr 3.99E+OO I-I

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