ML19224B566
| ML19224B566 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/18/1979 |
| From: | Gertz S PORTER CONSULTANTS, INC. |
| To: | |
| Shared Package | |
| ML19224B561 | List: |
| References | |
| TM-0379, TM-379, NUDOCS 7906150325 | |
| Download: ML19224B566 (4) | |
Text
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FGC-iR-le0 Perte Gertz Censultants, Inc.
76 RIT T E NHOUSE PLACE A F4 C 'J O F4 E, P A.19003
- " *'55
April 17,1979 WEEKLY RADIOLOGICAL DOSE CALCULATIOTIS AROUtiD THREE MILE ISLAND NtJCLEAR STATION - WATERBORNE PATHi!AYS ONLY -
FROM l' ARCH 28,1979 ON (To Be Uodated Weekly Until FurtherI;otice) 7906150SAS N*N==*=w.
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April 17,1979 2
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Perter Gc'rtz Censultants. Inc.
76 RIT T ENHOUSE PL ACE A M O *,4 0 H C, P A,19 003 215495 5353 Ir.troduc tio. n-It is the ourpose of this report to calculate the radiolooical doses for the
,caterborne pathway at locations downstrean of Three t'ile Island fluclear Station.
Doses are calculated for the oeriod fiarch 28,1979 - March 31,1979 and weekly (every 7 days) thereafter as per the table below usino the radioactivity levels found in the Off-Site Emeroency Radiological Environmental t'onitoring Program.
r dioactivity levels Used Pathway locations a
Drinking Water TM-SW-8E1 (Brrnner Island)
Average water concen-TM-SW-7Gl (Cclunbia) tration at each location TM-SN-9G2 ('.ork) for the time period in TM-SW-7G2 't?rightsville - sums question ner operation) 3 Susquehanna River below Averace water concen-Swirning f
TMIfiS tration for the time Coating Shoreline denosits period i n question.
Assunctions(1.2)
Pa timay, Maximum Individual Averace Indi',
Drinkino Water 14.0 liters / week 8.4 liters / week Eating Fish 0.35 kq/ week 0.04 kg/ week Shoreline activities 9.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> / week 0.04 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> / week Swimming 1.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> / week 0.08 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> / week Boating 1.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> / week 0.08 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> / week c.c Poculations Served Dv The '-later Comoanies Location Poculation Served Reference TM-SW-SE1 (Brunner Island) 25 Debbie Young, PP&L TM-SW-7G1 (Columbia) 10,000 Arlene Detz, C lumbia Water Co.
TM-SW-9G2 (York) 125,000 Dale Barnhart, York Water Co.
Tl) Final Environnental State ent, "Tiunerical Guides For Desian Obfectives and' Limitinq Ccnditions For Oneration To l'eet The Criterion ' As low As Practicable' For Radioactive l'atcrial In Licht '<!ater-Cooled Noclear Power Reactor Effluents".
Vol. 2, July 1973, '! ASH 1253, USAEC.
(2)Regula'.ory Guide 1.109 " Calculation Of *nnual Coses To Man From Routine Releases of Reactor Effluents For The Purcose of Evaluating Compliance With 10CFR Part 50, Append-I.
USNRC, Rev. 1, October 1977.
hertd Gertz Censultants, Inc.
76 RITTENHOUSE PLACE A R O MO R E. P A 19003 215496 E353 Equations (I' }
Orinking Water Dose = Cj Up Dj
= mrem / week Eating Fish Dose
= Cj Bj Up Dj
= mrem / week P
_xjt Snorline Activities = 19 Ti Ci Wf (1-e
) Up Dj
= mrem / week P
Sw' ming Dose = Cj !!p Di
= mrem / week Boating Dose = 0.5 Cj Up Dj
= mrem / week Where:
C4 = average concentration of the ith nuclide in water for the time period Up = useage or ingestion factor for that pathway Dj = dose factor for the ith radionuclide and pth pathway p
Bj = bicaccumulation factor for the ith radionuclide Tj = physical half-1ife for the ith nuclide Wf = shore width factor = 0.2 Aj = decay constant of the ith nuclide t = time sed'iment is exposed to water = 4D years fio te:
For purposes of averagina, values below the detection limit were considered to be that limit and averages were not calculated unless there.eas at least ene positive result.
no
, r
[_ i b b / L)
(1)
Final Environmental Statement, "flumerical Guides For Desian Objectives and Liniting Conditions For Operation To Meet The Criterion ' As low As Practicable' For Radioactive itaterial In Licht-Mater-Cooled.'iuclear P:m=r Reactor Effluents",
Vol. 2, July 1973, WASH 1258, USAEC.
(2) Regulatory Guide 1.109, " Calculation Of Annual Coses To Man From Routine Releases of Reactor Effluents For The Purpose of Evaluating Napliance Nith 10CFR Part 50, Appendix I,
UStiRC, Rev. 1, October 1977.
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Cj h7f
-2 STEVEN M. COIZ, FH D.
PCRIER GEETZ CCNSUL7 ANIS, INC.
76 OilEN.CUSE Ft ACE Au WE, FA.19CO3
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. Perter Gertz Censult.tnts, Inc.
76 RITTE NHOUSE PL ACE A R O M O R E, P A.19003 215496 5353 Dose Calculations For The Period 3/28/79 - 3/31/79 Nuclides Found and Their Concentra tions Location _
Nuclide and Concentration TM-SW-SE1 H-3 = 235 pCi/1 I-131 not detected y spec = <MDL TM-SU-7G1 H-3 = 165 pCi/1 I-131 = 0.35 pCi/l y spec = <MDL TM-SW-9G2 no activity detected Susquehanna River H-3 = 218 pCi/l I-i31 = 0.23 pCi/1 y spec = <MDL Dose Calculations - Coses Calculated For The Exoosure Period Dose: mrem / exposure ceriod Location Radionuclide Orcan "ax.
Av.
Pathway' Individual Individual Man-rem Drinking Water TM-SW-8El H-3 Whole 2.3E-4 1.4E-4 3.4E-6 body Drinkino Water TM-SW-7Gl H-3 Whole 1.6E-4 9.5E-5 9.5E-4 body Drinking Water TM-SN-7G1 I-131 Thyroid 5.2E-3 3.lE-3 3.1E-2 Eating Fish River H-3 Whole 5.'5E-6 6.3E-7 body Eating Fish River I-131 Thyroid 1.3E-3 1.5E-4 Swiming River H-3 Whol e 0
0 body Swirming River I-131 Thyroid 1.7E 7 7.lE-9 Boating River H-3 Whole 0
0 body Boating River I-131 Thyroid 8.5E -8 3.6E-9
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Shoreline River H-3 Whole 0
0 body Shoreline River I-131 Thyroid 5.7E-7 2.4E-9 Conclusion The doses calculated above are extremely low and no different from those that would be received from natural radiation.
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- c;gvtN M. c4RTZ, F -
FCRTE2-GERTZ CCNSULTANIS, INC.
76 EliTENHCUSE Fi ACE ACMCRE IA'IKc3
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