ML19256F423
| ML19256F423 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 02/28/1975 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML19256F405 | List: |
| References | |
| FOIA-79-491 NUDOCS 7912190126 | |
| Download: ML19256F423 (8) | |
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QUAD CITIES POWER STATION RADIOACTIVE WASTE, ENVIRONMENTAL MONITORING AND OCCUPATIONAL PERSONNEL RADIATION EXPOSURE JULY THROUGH DECEMBER 1974 ggc5RPTS FEBRUARY 1975
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SUMMARY
Gaseous and liquid effluents for the period remained at a fraction of a
10 the Technical Specification Limits. Calculations of environmental con-centrations based on effluent, Mississippi River flow, and meteorologi-N %g cal data for the period indicate that consumption by the public of E
radionuclides attributable to the plant will not exceed the quantity of
[E those radionuclides that result from continuous exposure to the concen-p tration values listed in Appendix B, Table II, of CFR20. Gac:ma radiation exposure from noble gases released to the atmosphere represent-ed the critical pathway for the period with a maximum individual dose es-timated to be 5 mrem for the six-month period, and 7 mrem for the year, when a shielding and occupancy factor of two is assumed. Environmental monitoring results confirm that dose via other pathways was not signif-icant.
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l-l 1.0 EFFLUENTS 1.1 GASEOUS Er""JENTS TO THE ATMOSPHERE Measured concentrations and isotopic composition of noble gases, r
radioiodine and particulate radioactivity released to the atmosphere dur-ing the period 1 July through 31 December 1974, are listed in Table 1.1-1.
A six-month total of 5.3 E+ 05 curies of noble gases was released during the period with a maximum release rate during any one-hour period of 1.05 E - 01 Ci/sec. Release rates during any one month of the period did not exceed 11% of the Technical Specification limit.
A total of 6.2 curies of I-131 and 12.5 curies of I-133 were released during the six-month period. The highest monthly radioiodine release was 61% of the Technical Specification limit.
Six-month totals of 0.15 curies of beta-gamma emitters and 1.4 E - 06 f
curies of alpha emitters were released as airborne particulate matter.
t The highest monthly release of beta-gamma particulate activity did not ex-ceed 14% of the Technical Specification limit.
r 1.2 LIQUIDS RELEASED TO MISSISSIPPI RIVER i
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A total of 1.3 E+ 0711ters of radioactive liquid wastes contain-I ing 26 curies (excluding tritium) were discharged from the station.
These wastes were released at an average concentration of 5.3 E- 08 uCi/ml i
which is 53% of the Technical Specification releases limit for unidentified radioactivity.
During the same period, 21 curies *of tritium and 1.2 E- 03
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curies of alpha radioactivity were released. Monthly release estimates and l
principal radionuclides in liquid effluents are given in Table 1.2-1.
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The maximum concentration of radioactivity, above background, in the Quad
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Cities Unit 1/2 discharge canal during the period was computed to be 9.92 E- 08 l
uCi/ml. This particular release occurred on 11-13 August 1974.
2.0 SOLID RADIOACTIVE WASTE i_
The total amount of solid waste packaged for disposal was I
cubic feet during the last six-month period. The total amount of radio-activity involved was calculated to be just under 540 curies.
Solid radioactive wastes were shipped to either Nuclear Engineering Company, Sheffield, Illinois or Chemical Nuclear Services, Bellevue, Washington.
Date, volume and radioactivity of each shipment are shown in Table 2.0-1.
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- Exclusive of December contributions for which data were not available in time for inclusion in this rr port.
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l TABLE 1.1-1(Cont'd)
REPORT OF RADIOACTIVE EFFLUENTS Docket No. 50-254 & 50-265 FACII.ITY : QUAD CITIES YEAR:
1974 E
Six Month 1.1 Gaseous Effluents Units July Aug Sept Oct.
Nov.
Dec.
Total 3.
Particulate Releases h
a) Gross Deta-Gamma Curies 1.5 E -02 1.7 E -02 1.9 E -02 5.6 E -02 2.5 E -02 1.9 E-02 1.5 E-01 tj b) Gross Alpha Curies 4.7 E -08 5.1 E -07 6.7 E -08 1.4 E -07 1.1 E -07 4.8 E-07 1.4 E-06 h
c)
Isotopes Released:
Curies y
Sr-89 2.0 E -04 2.9 E -04 1.3 E-03 2.8 E-03 9.1 E-04 NA 5.5 E-03*
';I Sr-90 2.6 E -05 1.8 E -05 1.0 E-05 2.1 E-05 1.5 E-05 NA 9.0 E-05*
3 Cr-51 7.1 E -04 1.1 E -03 2.0 E -04 4.7 E -04 8.9 E -04 1.0 E-03 4.3 E-03 d I Hn-54 9.1 E -05 6.5 E -05 1.1 E -04 8.6 E -05 5.9 E -05 7.4 E-05 4.8 E-04 C
Co-58 9.3 E -05 9.3 E -05 2.5 E -05 7.1 E -05 7.3 E -05 3.0 E-05 3.9 E-04 d
co-60 5.6 E -04 3.4 E -04 1.6 E -04 3.6 E -04 3.1 E -04 7.9 E-04 2.5 E-03 l
Zn-65 1.5 E -05 3.7 E -05 1.7 E -05 1.9 E -05 1.3 E -05 5.3 E-05 1.5 E-04 O
I -131 1.5 E -03 2.7 E -03 2.7 E -03 8.1 E -03 3.2 E -03 2.1 E-03 2.0 E-02 m
N Cs-134 3.9 E -04 1.5 E -04 2.8 E -04 3.8 E -04 1.2 E -03 3.5 E-04 2.7 E-03 W
Cs-137 6.9 E -04 3.0 E -04 4.9 E -04 6.8 E -04 6.0 E -04 6.5 E-04 3.4 E-03 Ba-140 1.6 E -04 6.1 E -04 8.4 E -04 2.1 E -03 1.3 E -03 5.3 E-04 5.5 E-03 j
La-140 2.7 E -04 9.1 E -04 4.7 E -05 3.2 E -03 1.9 E -03 7.6 E-04 7.1 E-03 p
Cs-136 2.6 E -05 2.0 E -05 6.0 E -05 ND ND 4.6 E-05 1.5 E-04 p
Ce-141 ND ND 2.5 E -05 ND ND ND 2.5 E-05 E
d) % of Chimney Limit 0.03 0.03 0.06 0.21 0.06 0.03 e)
% of Vent Stack Limit 14 11 7
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ND = Not Detectable NA - Not Available at this time.
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TABLE 2.0-1 1
SOLID WASTE SHIPMENTS
- i July through December 1974 3
Month Volume Shipped (m )
Curies July 52.4 44.6 August 77.9 138.9 September 67.8 172.3 October 73.4 55.1 November 12.1 39.6 December 88.1 87.8 TOTAL 371.7 538.3
- Wastes shipped to Nuclear Engineering Co., Sheffield, Illinois, and Chemical Nuclear Services, Bellevue, Washington.
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