ML20008F402
| ML20008F402 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 12/31/1980 |
| From: | WISCONSIN ELECTRIC POWER CO. |
| To: | |
| References | |
| NUDOCS 8103130288 | |
| Download: ML20008F402 (14) | |
Text
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WISCONSIN ELECTRIC Semiannual
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POWER COMPANY July 1,1980 through December 31,1980 POINT BEACH NUCLE AR PL ANT UNIT NOS.1 AND 2
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U.S. Nuclear Regulatory Commission Docket Nos. 50-266 and 50-301 Facility Operating License Nos.
DPR-24 and DPR-27 8103130$I8 _
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i9 I TABLE OF CONTENTS
- e SECTION TITLE PAGE f
I 1.0 RADIOACTIVE LIQUID RELEASES 1 l
l t
i 1.0 RADIOACTIVE AIRBORNE RELEASES 4 4
i 3.0 RADIOACTIVE SOLID WASTE SHIPMENTS 7 i
' 7 4.0 NEW AND SPENT FUEL SHIPMENTS AND RIEEIPTS f
j ~ 5.0 RADIOLOGICAL ENVIRONMENTAL MONITORING 8 i
6.0 NON-RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 9 i
l 7.0 NON-RADIOACTIVE CHEMICAL RELEASES 10 8.0 CIRCULATING WATER SYSTEM OPERATIONS 11 i ,
9.0 - LEAK TESTING OF RADIOACTIVE SOURCES 11-l 1
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1.0 RADIOACTIVE LIQUID RELEASES Radioactive liquid releases via the circulating water discharge are summarized for total release and by individual source on a monthly basis in Table 1-1. An isotopic breakdown of the total radioactive
, liquid release is presented in Table 1-2.
The total radioactive liquid release excluding tritium for this
. reporting period was 7.18E-01 Curies which included 4.86E-02 Curies of processed radioactive waste and primary coolant system letdown, 6.37E-01 Curies of Unit 1 steam generator blowdown, 3.23E-02 Curies of Unit 2 steam generator blowdown. There was no measurable release other than tritium via retention pond effluent. The total tritium release for this reporting period was 479 Curies, which included 473 Curies of processed radioactive waste and primary coolant system let-down, 5.03 Curies of Unit 1 steam generator blowdown, 783 Curies of Unit 2 steam generator blowdown, and .431 Curies of retention pond e f fluent. All radioactive liquid releases to Lake Michigan were made through the circulating water discharge.
1.1 Additions to Semiannual Monitoring Report January 1,1980, through June 30, 1980 June Total 7btal Activity Released, Ci Gross Alpha <MDA 8.57E-05 Average Diluted Discharge Concentration, UCi/cc Gross Alpha <MDA 6.71E-12
% MPC 2.24E-02 The following data which was not available at time of report preparation should be added to Table 1-2 of the Semiannual Monitoring Report January 1,1980, through June 30, 1980.
Activity Released, Ci June Total Sr-89 <MDA 1.73E-04 S r-90 1.05E-06 1.41E-03 Alpha <MDA 8.57E-05 a
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- TABLE l-1 RADIOACTIVE LIQUID CIRCULATING WATER RELEASE
SUMMARY
PERIOD JULY l TO DECEMBER 31, 1980 July August September Octob*r November December Total Total Activity Released, Ci Gama Scan (1) 8.80E-02 1.68E-02 1. 30E-02 1.76E-02 5.66E-Ol 1.69E-02 7.18E-Ol Gross Alpha 1.99E-07 1.15E-05. 7.31E-06 4.22E-06 2.00E-05 (3) (3)
Tritium 1.21E+02 3.87E+01 2.93E+01 2.56E+01 1.91E+02 7.35E+01 4.79E+02
. Total Voltanes Released, Gals Processed waste 1.80E+05 1.66E+05 5.10E+04 3.60E+04 1.96E+05 2. 23E +05 8.52E+05 Steam Generator Blowdown, Unit 1 2.27E+06 2.02E+06 2.64E+06 3.02E+06 2.42E+06 3.30E+05 1.27E+07 Steam Generator Blowdown, Unit 2 3. 02E +06 2.69E+06 2.59E+06 2.79E+06 2.43E+06 2.78E+06 1. 63E +07
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Retention Pond 2.19E+06 1.16E+06 2.00E+06 5.17E+06 1.58E+06 1.36E+06 1.35E+07
'Ibtal 7.66E+06 6.04E+06 7.36E+06 1.10E+07 '-63E+06 4.69E+06 4.34E+07 h volume of Dilution Water, al/cc 6. ole +13 7.61E+13 7.03E+13 7.34E+13 4.04E+13 4.43E+13 3.65E+14 Average Diluted Discharge Concentration, pCi/cc Gross Beta-Gama 1.46E-09 2.21E-lO 1.85E-10 2.38E-10 1.40E-08 3.82E-10
% MPC 4.48E-01 2.22E-02 1.74E-02 2.25E-02 2.20E+00 5.93E-02 Gross Alpha 3.32E-15 1.51E-13 1.04E-13 5.72E-14 4.95E-13 (3)
% MPC 1.llE-05 5. 0 3E-04 3.47E-04 1.91E-04 1.65E-03 (3)
. Tritium 2. ole-06 5.08E-07 4.17E-07 3.47E-07 4.73E-06 1.66E-06
% MPC 6.71E-02 1.69E-02 1.39E-02 1.16E-02 1.58E-01 5.53E-02 Maximum Discharge Concentration During Release Period, pCi/cc Gross Beta-Gamma (1) 5.92E-08 3.08E-09 5.09E-09 1.23E-09 1.68E-08 4 33E-09 Tritium 7.79E-05 6.29E-05 7.13E-05 7.13E-05 1.79E-04 1.67E-04 KOTES: (1) Not including Strontium results which generally have a negligible effect.
(2) Summation of the individual isotopic 10 CFR 20, Appendix B Table II MPC's.
( 3) Data unavailable at time of report writing. _
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- e r TABLE l-2 ISOMPIC COMPOSITION OF CIRCULATING WA'IER DISCHARGES PERIOD JULY l TO DECEMBER 31, 1980 Nuclides July August September October November December Total Released (Curies) (Curies) (Curies) (Curies) (Curies) (Curies) (Curies)
H-3 1.21E+02 3.87E+01 2.93E+01 2.56E+01 1.91E+02 7.35E+01 4.79E+02 F-18 2.24E-03 2. 30E-0 3 1.75E-03 1.44E-03 1.50E-03 5.98E-04 9. 8 3E-03 Cr-51 <MDA 1.06E-03 1.51E-04 4.16E-04 <MDA 4.02E-04 2.03E-03 Mn-54 <MDA 1.68E-04 5.72E-05 <MDA 2.29E-05 1.07E-03 1.32E-03 Co-57 9.75E-05 1.10E-05 <MDA <MDA (MDA 1.53E-06 1.10E-04 Co-58 7.15E-06 2.21E-04 2.30E-04 1.27E-05 1. ole-04 1.53E-04 7.25E-04 Co-60 2.86E-04 2.18E-03 9.36E-04 6. %E-05 8.54E-04 5.06E-03 9.39E-03 Kr-85m 1.09E-05 <MDA <MDA <MDA <MDA <MDA 1.09E-05 Rb-88 (MDA (MDA <MDA 6.31E-03 <MDA <MDA 6.31E-03 Nb-95 <MDA 9.12E-05 1.52E-04 3.14E-06 1.73E-04 1.20E-06 4.21E-04 Zr-95 '<MDA <MDA 1.53E-05 <MDA <MDA <MDA 1.53E-05 Mo-99 <MDA 1.llE-05 <MDA <MDA <MDA <MDA 1.llE-05 Ru-103 <MDA <MDA 3. 34E-06 <MDA <MDA <MDA 3.34E-06 Ru-106 <MDA (MDA 3.20E-04 <MDA 5.44E-04 (MDA 8.64E-04 Ag-110m <MDA 3.81E-05 1.48E-04 2.23E-06 3.68E-04 5.09E-06 5.61E-04 Sb-125 <MDA <MDA 2.10E-05 <MDA 1.12E-04 2.35E-05 1.57E-04 I-131 1.87E-02 3.91E-03 2.08E-03 2.90E-03 2.06E-01 2.09E-04 2.34E-01 I-132 2.53E-03 6.48E-05 6.68E-04 1.12E-03 2.46E-02 <MDA 2.90E-02 I-133 1.68E-02 2.79E-03 4.74E-03 4.52E-03 1.96E-01 2.54E-04 2.25E-01 I-134 <MDA 6.52E-05 <MDA <MDA 6.40E-03 (MDA 6.47E-03 I-135 5.14E-03 <MDA 1.55E-03 7.56E-04 7.68E-02 <MDA 8.42E-02 Xe-133 3.62E-02 2.69E-03 1.98E-05 8.89E-06 1.68E-02 4.31E-04 5.62E-02 Xe-133m 4.44E-04 <MDA <MDA (MDA <POA <MDA 4.44E-04 Xe-135 1.35E-03 3.37E-05 5.98E-06 4.40E-07 3.29E-03 3.62E-07 4.68E-03 Xe-138 1.76E-03 <MDA <MDA <MDA <MDA <MDA 1.76E-03 Cs-134 7.44E-05 2.53E-04 (MDA <MDA 9.38E-03 1.llE-03 1.08E-02 Cs-137 4.15E-04 8. 2E-04 <MDA <MDA 2.9E-02 7.60E-03 3.18E-02 Cs-138 2.02E-03 <MDA <MDA <MDA <MDA <MDA 2.02E-03 Ce-141 <MDA 4.llE-05 <MDA <MDA <MDA 1.89E-06 4.30E-05 Ce-144 <MDA <MDA 1.19E-04 (MDA (MDA <MDA 1.19E-04 MTAL 8.80E-02 1.68E-02 1. 30E-M 1.76E-02 5.66E-01 1.69E-02 7.18E-Ol( '
NOTES: <MDA - Less than minimum detectable activity.
(1) - Data unavailable at report time.
(2) - Total does not include tritium, strontium, or alpha.
2.0 RADIOACTIVE AIRBORNE RELEASES Radioactive airborne releases during normal plant operation are reported by total release in Table 2-1, and sumarized by isotope in Table 2-2. The release paths contributing to radioactive airborne
- releases during this reporting period were the auxiliary building vent stack, Unit 1 containment purge stack, Unit 2 containment purge stack, druming area vent stack, gas stripper building ventilation exhaust, combined air ejector s'ecay duct exhaust and turbine building ventilation exhaust.
There were three gas decay tank releases during this report period.
2.1 Additions to the Semiannual Monitoring Report, January 1, 1980, through June 30, 1980 The following data which was not available at the time of the report preparation should be added to Table 2-2 in Section 2.0 of the Semiannual Monitoring Report covering the period January 1, 1980, through June 30, 1980.
April May June Total, Ci Sr-89 <MDA <MDA <MDA ---
S r-90 <MDA <MDA <MDA ---
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4 e w TABLE 2-1 RADIOACTIVE AIRiiORNE RELEASE
SUMMARY
PERIOD JULY l 'IO DECEMBER 31, 1980 July Aug us t Septentie r October November December Total Total Curies Released (Excluding Tritium) 1.17E+02 2.90E+01 8. 9 3E4 00 1.03E+01 8.87E+01 1.97E+01 2.74C+02 Total Xe-133 Equivalent Curies Released l 1.25E+03 1. 06E + 0 3 4.06E+02 9.76E+01 2.85E+02 4.14E+02 3. 51E + 0 3 Average Release Rate (Curies /Second)2 4.67E-04 3.94E-04 1.56E-04 3.60E-05 1.lOE-04 1. *,5E-04 Percent of Annual Tech-nical Specification Limits 3
- 2. 3 3E-01 1.97E-OL 7.8?::-02 1. 82E -02 5.94E-02 7.73E-02 Maximum Hourly Average Relecse Rate 2.31E-03 6.55E-04 2.56E-04 5.18E-05 8.71E-04 3.55E-04
, (Curies /Second)"
T Monthly Average Site Boundary Concentration (pci/cc)2 7.00E-10 5. 91E-10 2.35E-10 5.47E-ll 1.65E-10 2.32E-10 1 A'.1 gaseous and particulate releases are converted to "Xe-133 equivalent" for calculational purposes using the ratio MPCXe-13 3/MPCi. MPC's for isotopes of iodine and particulate with half-lives longer than eight days are reduced by a factor of 700.
2 Averaged over or.e month and based on Xe-133 equivalent.
3 Annual average Technical Specification limits are 0.2 Ci/sec Xe-133 based on X/Q - 1.5 X 10-6 ,,cf,3, Maximum Technical Specification limits are 2.0 Ci/sec Xe-133 based on X/O - 1.5 X 10-6 sec/m3 .
" Expressed as Xe-13 3 c<luivalent.
~- ... . _ . . . - ~ . - . = . _ _ - . - - - . _ _ _ . _ . . . . - - _ . - . _ _ _ _ _ . . = - . _ _ - - _ - _ . -
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1 TABLE 2-2 J
RADIOACTIVE AIRBORNE RELEASE
SUMMARY
PERIOD JULY l TO DECEMBER 31, 1980 s July August September October November December Total (Curies) (Curid (Curies) (Curies) (Curies) (Curies)_ (Curies)
Tritium 2.9 3E+01 4.08E+00 1.23E+01 5.48E+01 3.63E+01 5.94E+01 1.96E+02 r
[ Noble' Gases i
Ar-41 9.60E-01 6. 23E-01 1.13E-01 1.29E-01 2.10E+00 4.13E+00 8.05E+00
- Kr-85 2.28E+01 4.99E-01 5.59E-01 9.73E-01 4.55E+01 7.25E-01 7.llE+01 I
Kr-85m 5.51E+00 2.68E+00 6.16E-01 7.44E-01 1.25E+00 1.03E+00 1.15E+01 Kr-87 1.99E+00 1.28E+00 2.85E-01 3.14E-01 3.86E-01 5.86E-01 4.84E+00 Kr-88 0.10E+00 4. 02E + 00 9.08E-01 1.07E+00 1.51E+00 1.55E+00 1.72E+01
. Xe-133 4.94E+01 6.20E+00 3.24E+00 3.52E+00 3.34E+01 4.94E+00 1.01E+02 Xe-133m 3.49E-01 1.10E-02 1.80E-02 2.45E-02 1.82E-01 2.35E-03 6.08E-01 Xe-135. 2.65E+01 1.10E+01 2. 33E+00 2.69E+00 3.13E+00 3.71E+00 4.94E+01 l 4.03E+00 Xe-135m 7.88E-01 1.12E+00 3.03E-01 3.05E-01 4.58E-01 1.06E +00 Xe-138 1.23Et00 1.61E+00 5.41E-01 5.46E-01 8. 34E-01 1.91E+00 6.67E+00 Particulates with Half Lives IAss Than Ei9ht Days j
1 F-18 <>OA 9.31E-08 (MDA (MDA (MDA <MDA 9.31L-08 Rb-88 4.14E-03 1.92E-03 1.07E-02 7.95E-05 8.55E-05 2.54E-06 1.69E-02 Te-132 1.168-08 9.95E-09 <MDA (MDA (MDA <MDA 2.16E-08 Cs-138 1.67E-04 2.72E-04 2.02E-03 4.42E-04 4.44E-06 9.33E-08 2.91E-03 Particulates with Half Lives Greater Than Eight Days and Iodines m-54 <MDA <MDA <MDA 2.31E-09 (MDA (MDA 2.31E-09
. Co-57 1.19E-06 1.07E-09 <MDA (MDA (MDA <MDA 1.19E-06 I Co-58 1.81E-10 2.37E-07 (MDA <MCA <MDA <MDA 2.37E-07 Co-60 1.27E-06 1.03E-06 6.57E-07 4.15E-06 1.15E-06 1.22E-08 8.27E-06 l
- Sr-89 <MDA <MDA (MDA (1) (1) (1) ---
, Sr-90 <MDA <MDA <MDA (1) (1) (1) ---
Ru-106 3. ole-08 (MDA <MDA <MDA <MDA <MDA 3.01E-08 2.10E-06 j Cd-109 <MDA (MDA (MDA 2.10E-06 <MDA (MDA i- I-131 1.14E-04 3.91E-04 1.46E-04 <MDA 5.71E-05 1.34E-04 8.44E-04 i I- 1 32 2.13E-03 9.18E-04 <MDA <MDA 4. 74E-06 1.72E-04 3.22E-03 I-133 1. 71.E-04 1.78E-05 4.04E-05 2.05E 1.37E 8.60E-05 3.49E-04 Cs-134 <MDA 5.03E-07 <MDA <MDA (MDA 3.21E-08 5.35E-07 Cs-137 6.18E-08 2.30E-06 7.73E-05 4.50E-07 8.48E-07 1.55E-05 9.65E-05 Ce-139 <MDA' <MDA (MDA 1.99E-09 1.24E-10 <MDA 2.11E-OS Ce-141 <MDA 3.68E-08 <MDA <MDA (MDA 1.48E-11 5.68E-08 i
Alpha <MDA <MDA 6.58E-ll 4.18E-07 4.64E-07 3.30E-08 9.15E-07 NOTES: <bA - Less than miniawi detectable activity.
I (1) - Data unavailable at report time.
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3.0 PADIOACTIVE SOLID WASTE SHIPMENTS Shipments offsite of solad waste for burial during this reporting period were as follows:
A Date Volume (Ft. 3) Total Activity (Ci) 07-18-80 502.4 0.059 08-11-80 85 534(1) 09-02-80 64.7 2.34 09-23-80 621.5 0.99 10-07-80 64.7 1.82 10-14-80 64.7 1.5 11-14-80 540 2.44E-05 11-20-80 356.7 0.135 12-04-80 85 4.47(1) 12-20-80 85 1.63(1) 12-29-80 555 0.314 3,024.7 547.3 (1) Involved spent resin 4.0 NEW AND SPENT FUEL SHIPMENTS AND RECEIPTS During this reporting period, a total of 32 new fuel assemblies were received from Westinghouse Electric Corporation for Unit 1.
No new fuel assemblies were received for Unit 2. No spent assemblies were shipped from Unit 1 or 2.
5.0 RADIOLOGICAL DNIRONMDITAL MONITORIrG Radiological environmental monitoring conducted by Point Beach Nuclear Plant for the period from July 1,1980, through December 31, 1980, consisted of air filters, gamma dose, vegetation, lake water, well water, milk, shoreline silt, soil, algae, and fish samples collected and analyzed in accordance with Technical Specification 15.4.10.
3 All measurements obtained during this period,are well within the normal range except one milk sarple in November which indicated a minor amount of I-131 (1.3 pCi/1) . This is attributed to fallout from a Chinese nuclear detonation on October 16, 1980. In addition, one shoreline silt sample in October yielded a slightly elevated gross beta concentration (19 pCi/g) . Investigation indicated no connection between this result and operation of Point Beach Nuclear Plant.
No. Sample Type Low Average High Units TLDs 42 Quarterly 0.43 1.0210.38 1.34 mR/wk Air Filters 156 Gross Beta <0.01 0.03010.058 0.24 pCi/m 3 156 Radiciodine --
all <0.03 -- pCi/m3 12 Gamma Scan --
all < 0.01 -- pCi/m3 Milk 1 Radioiodine <0.5 40.511.8 1.3 pCi/1 18 Sr-89 --
all <5 --
pCi/1 18 Sr-90 1.4 2.111.3 4.2 pCi/l 18 Gamma Scan --
all <5 --
pCi/l Lake Water 30 Gross Beta 2.4 3.712.5 6.8 pCi/l 30 Gamma Scan --
all <10 --
pCi/l 10 Tritium <0.50 <0.5010.08 0.53 pCi/m) 10 Sr-89 --
all <5 --
pCi/1 10 Sr-90 <1 <1.310.8 1.7 pCi/1 Well Water i
2 Gross Beta <2.8 <3.4 4.0 pCi/l 9 Gamma Scan --
both <10 --
pCi/l 2
l 2 Tritium --
both <0.5 --
pCi/ml 2 Sr-89 --
both < 5 --
pCi/l l
l 2 Sr-90 --
bo th < 1 --
pCi/l l
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No. Sample Type Low Average High Units Vegetation 16 Gross Beta 7.9 201,22 45 pCi/g (dry) 16 Gamma Scan --
all <1 --
pCi/g (dry)
Soil 8 Gross Beta 11 211,13 28 pCi/g (dry) 8 Gamma Scan Cs-137 <1 <110.6 1.7 pCi/g (dry)
Others --
all <1 --
pCi/g (dry)
Algae 4 Gross Beta 5.0 101,16 16 pCi/g (dry) 4 Gamma Scan --
all <5 --
pCi/g (dry)
Fish 3 Gross Beta 7.1 8.619.6 11 pCi/g (dry) 3 Gamma Scan --
all <1 --
pCi/g (dry)
Shoreline Silt 5 Gross Beta 3.1 9.31,17 19 pCi/g (dry) 5 Gamma Scan --
all <1 --
pCi/g (dry) 6.0 NON-RADIOLCGICAL ENVIRO! MENTAL MONITOR.., ROGRAM In accordance with Amerdment numbers 29 ano . to Facility Operating Licenses DPR-24 and DPR-27 respectively, datec Mvember 4, 1977, the Environmental Technical Specifications for the Ps'nt Beach Nuclear
- plant Units 1 and 2 were mcdified to allow tempora suspension of I the non-radiological environmental monitoring progr.. 7ending NRC re-view of the summary report of the five years of monit 'ng. As a j result, the semiannual report specified by Item 16.6.2.a o. une Tech-nical Specification is not applicable.
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7.0 NON-RADIOACTIVE CHEMICAL RELIASES 7.1 Scheduled Chemical Waste Releases Scheduled chemical waste releases to the circulating water system for the period of 07-01-80 to 12-31-80 included 3,983,675 gallons of neutralized clear water waste. The waste water contained 415 pounds of suspended solids and 210,353 pounds of dissolved solids.*
When averaged over the reporting period, these discharges represented 39.14% of the Technical Specification limit for dissolved solids and .15% of the Technical Specification limit fo r suspended solids. *
- The concentration increaser of chemical waste in the circulating water system during the period of chemical releases ranged from 0.62 to 8.23 ppm dissolved solids and from 3.0E-04 to 2.6E-02 ppm s uspended solids. *
- plant chemical records indicated that the following amounts of chemicals were released in the form of neutralized waste:
Sodium 50,589 pounds Sulf ate 130,604 pounds
- Chemical releases calculated are based upon neutralized tank analysis prior to discharge.
- Based on calculations during times of actual discharges.
7.2 Miscellaneous Chemical Waste Releases Miscellaneous chemical waste releases to the circulating water system from the retention pond for the period of 07-01-80 to 12-31-80 included 13,500,000 gallons of clear water waste. The waste water contained 1,200 pounds of suspended solids and 52,200 pounds of dissolved solids.* When averaged over the reporting period, these discharges were 0.68% of the Technical Specification limit for dissolved solids and 0.028% of the limit for suspended solids.
Retention pond analysis and plant chemical records indicate that the following chemicals were released in the form of clear water waste from the retention pond.
Sodium 6,662 pounds Chloride 10,281 pounds Phospha te 16.6 pounds The balance of the dissolved solids were in the form of soluble calcium and magnesium compounds resulting from the plant makeup water cold lime softening process.
- Chemical release calculations are based on retention pond analyses during the period 07-01-80 to 12-31-80.
i 8.0 CIRCULATING WATER SYSTEM OPERATIONS The circulating water system operation during this reporting period for periods of plant operation is described in Table 8-1.
L 9.0 LEAK TESTING OF RADIOACTIVE SOURCES During the reporting period, all applicable sealed radioactive sources were leak tested according to Technical specification require-ment 15.4.12. Results of the leak testing showed no removable con-tamination greater than 0.005 microcuries from sealed radioactive sources.
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- k e. r TABIE 8-1 CIRCULATING WATER SYSTEM OPERATION e July August September October November December Average Volume Coolin',1 UNIT 1 610.9 ' 507.9 643.1 638.6 394.4 174.9(
Water Discharge, ,
Million Gal / Day UNIT 2 600.8 648.6 619.0 628.6 356.0 377.1 Average ' Cooling Water UNIT 1 54.3 55.9 58.0 52.4 43.5 41.0 Intake Te p rature-Degrees F UNIT 2 55.4 55.9 57.7 51.9 42.9 39.9 d
Y - Average Cooling Water UNIT 1 67.1 72.3 70.5 65.0 63.2
' 47.6 Discharge Temperature Degrees F UNIT 2 71.5 71.2 73.7 67.7 69.5 68.0 i
Avera9e Ambient UNIT 1 53.9 52.9 46.6 31.3 23.9 9.1 Temperature .
Degrees F UNIT 2 (3) ( 3) ( 3) (3) ( 3) (3) l (1) Unit I was shut down for steam generator maintenance from July 27, 1980, to August 8, 1980.
(2) Unit 1 was shut down for refueling from November 29, l'380, to December 26, 1980.
(3) Instrumentation out-of-service.
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