ML20003H694

Semiannual Effluent Rept,Offsite Dose Estimates,Third & Fourth Quarters,1980.

ML20003H694
Person / Time
Site:	Beaver Valley
Issue date:	04/21/1981
From:	DUQUESNE LIGHT CO.
To:
Shared Package
ML20003H688	List: ML20003H687 ML20003H694
References
NUDOCS 8105070255
Download: ML20003H694 (3)

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DUQUESNE LIGHT COMPANY 9 Beaver Valley Power Station Docket No. 50-334, License No. DPR-66 ,

Semi-Annual Effluent Report Off-Site Dose Estimates - Third and Fourth Quarters, 1980 In accordance with requirements of Section 5.6.1.B of the Environmental Technical Specifications and Regulatory Guide 1.21, the off-site dose to humans from the gaseous and liquid radioactive effluents have been estimated.

Dose Models A. Airborne Effluents All doses as a result of Beaver Valley operation were calculated for gaseous pathways using NRC computer code GASPAR.

All gaseous effluent releases, including Auxiliary Building Ventilation, were included in dose assessments. The data obtained from the analyses required by the Technical Specifications, were used as input. Meteorological data collected by the Beaver Valley Power Station meteorology system was also used in input to GASPAR.

Except when more recent or specific data was available, all inputs were the same as used in the Beaver Valley Power Station Environ-mental Statements or in Regulatory Guide 1.109.

B. Liquid Effluents ,

The radiation doses to man from liquid effluents were calculated using NRC computer code LADIAP.

All potentially radioactive liquid effluents, including steam generator blowdown, are released by batch mode after analysis by gamma spectrometry using a GeLi detector. The actual data from these analyses are tabulated and used as the input term for sources in LADIAP. The maximum individual for liquid pathways is located at Midland. Except when more recent or specific data for the period is available, all other input to LADIAP are obtained from the Betver Valley Power Station Environmental Statement or Regulatory Guide 1.109. Pathways, which were evaluated, are drinking water, fish consumption,.and shoreline recreation.

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DUQUESNE LIGHT COMPAhT Beaver Valley Power Station Docket No. 50-334, License No. DPR-66 Semi-Annual Effluent Report Off-Site Dose Estimates - Third and Fourth Quarter, 1980

SUMMARY

OF RESULTS Airborne Effluents Maximum Individual Dose Third Quarter Fourth Quarter Whole Body SW 0.98 mi . 1.54E-3 mrem NE 0.38 mi 2.24E-5 mrem 3.34E-5 mrem SW l.49 mi 8.57E-7 mrem 1.28E-03 mrem ESE 0.38 mi 2.04E-4 mrem-SE 0.44 mi 5.34E-6 mrem Beta Air Dose ESE 0.38 mi 1.04E-3 mrad NE 0.38 mi 1.17E-19 mrad 1.71E-4 mrad SW l.49 mi 5.06E-9 = rad 6.67E-3 mrad SW 0.98 mi 6.49E-9 mrad 7.94E-3 mrad Ga m Air Dose SW l.49 mi 4.47E-11 mrad 2.22E-3 mrad NE 0.38 mi 1.03E-21 mrad 5.73E-5 mrad SW 0.98 mi 5.72E-ll mrad 2.64E-3 mrad ESE 0.38 mi 3.50E-4 mrad All other organs less than the whole body dose.

Population Dose 0 to 50 miles Whole Body 1.70E-4 man-rem 4.85E-2 man-rem Licuid Effluents Maximum Individual Dose Third Quarter Fourth Ouarter Whole Body (Adult) Fish Pathway 5.99E-3 mres 6.65E-3 mrem for Third and Fourth Quarter All other organs less than the whole body dose.

Population Dose O to 50 miles Whole Body 7.70E-3 =an-rem 1.60E-2 man-rem Thyroid 4.97E-3 man-rem 1.26E-2 man-rem Kidney 5.27E-3 man-rem 1.25E-2 man-rem Lung 5.22E-3 man-rem 1.29E-2 man-rem GI-LLI 1.07E-2 man-res 2.60E-2 man-rem

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TABLE 18 EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT (1930 )

GASEOUS EFFLUENTS-ELEVATED RELEASE CONTINUOUS MODE BATCH MODE Nuclides Released Unit Quarter Cuarter Quarter Quarter f!o REl EASES

1. Fission gases 3RD llTH 3RD flTH krypton-85 Ci 2.56 E-5 LL9 E . E 3.ns E-2 krypton-85m Ci LLD E LLD E . E LLD E krypton-87 Ci LLD E LLD is < . E LLD E kryoton-88 Ci LLD E LLD E . E LLD E xer.on-133' Ci LLD E 6.22 E-4 . E 5 70 E+1 xen6n-135 Ci LLD E LLD E . E 239EY xenon.135m Ci LLD E LLD E . E LLD E xenon-138 Ci LLD E LLD E . E Iin E Others (specify) Ci . E . E . E . E yEnon-131 M Ci . E . E . E 6.4D E-1 xfel.cn-133 s Ci . E . E . E 2.44 E-1 unidentified Ci . E . E . E . E Total for period Ci 2.56 E-5 6 22 E-4 . E 5.80 E+:

2. Iodines iodine-131 Ci LLD E 1.49 E-4 . E LLD E iodine-133 Ci LLD E 1 37 E-6 . E LLD E iodine.135 Ci LLD E LLD E . E LLD E Tetal for period Ci E 1 50 Eli . E E

3. Particulates strontium-89 Ci 2 .45 E-9 LLD E . E LLD E strontium-90 Ci 1.20 E-8 LLD E . E LLO E cesium-134 Ci LLD E LLD E . E LLD E cesium-137 Ci LLn E LLD E . E en E barium-lanthanum-140 Ci LLD E LLD E . E iin E Others (specify) Ci . E . E . E . E Ci . E . E . E . E Ci . E . E . E . E unidentified Ci . E . E . E . E l LLD = 3act i:e Lost LuuT w Dcrecucts (TABLE 10 1 .

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