ML20112J127

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Semiannual Radioactive Effluent Rept,Jul-Dec 1984
ML20112J127
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 03/31/1985
From: Gahm J
PUBLIC SERVICE CO. OF COLORADO
To: Johnson E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
P-85079, NUDOCS 8504040531
Download: ML20112J127 (16)
v • d • e


Text

r SEMI-ANNUAL RADI0 ACTIVE EFFLUENT RELEASE REPORT July - December 1984 Public Service Company of Colorado Fort St. Vrain Nuclear Generating Station March 1985 pb s \

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- ;6 1.0 Summary This report summarizes the radiological effluent released l om the Fort St. Vrain Nuclear Generating Station for the- period

-July _through December, 1984. In addition,-Table 3.1 provides a

-general . summary of the ~ plant systems .under radiological surveillance, and Table 4.1 summarizes the solid radioactive waste removed from the site during the aforementioned time pe ri od.- This information is provided pursuant to the

. requirements of Section 7.5.le of the Fort St. Vrain Technical Specifications.

Tritium 'was the radionuclide of principal interest released via the liquid pathway. during the second half .of 1984.

Approximately 100 curies;were released to the unrestricted area via batch and continuous releases. This tritium resulted primarily' from removal of' moisture from the Primary Coolant System.

Xenon 133 was the predominant radioisotope released from the station via the gaseous pathway, with approximately 'll curies being discharged.

In. accordance with the Fort St. Vrain Offsite Dose Calculation Manual. the dose due to radioactive liquid and gaseous- releases made'in 1984 was as foll,ows: "

' Liquid - 10CFR50 Whole Body 2.8E-1 mrem Organ (maximum) 5.2E-1 mrem' Gas - 10CFR50' Noble Gas--Gamma 2.0E-3 mrem i Beta 5.8E-3 mrem I

j Iodine, Particulates,-Tritium l Adult E Whole Body 3.2E-4' mrem

Organ (maximum), 1.0E-3 mrem I

l Teen i- Whole Body 3.8E-4 mrem

. Organ (maximum). 1.3E-3 mrem l- '-

Child- '

5- -

L Whole Body 5.6E-4 mrem: ~ ',

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Organ (maximum) 2.5E-3 mrem'3 '

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. Whole Body 4.4E-4 mrem Organ (maximum) 4.7E-3 mrem Gas - 10CFR20 Iodine, Particulates, Tritium 8.0E-1 mrem As can be seen, the maximum whole body exposure to a member of the public from Fort St.'Vrain releases in 1984 was 1.1 mrem, well within the 40CFR190 limit. The maximum organ exposure was 1.3 mrem.

No solid radioactive low level waste was removed from the station during this reporting period.

There were no unplanned gaseous or liquid radioactive releases from the site to the unrestricted area during this reporting period.

During the second half of 1984, one change was made to the Process Control Program (PCP), and three changes were made to the Offsite Dose Calculation Manual (CDCM). The PCP change involved only a' change in number, from Radiation Protection Administrative Procedure (RPAP) 3 to Support Services Manager Administrative Procedure (SUSMAP) 3. The ODCM changes consisted of corrections to the radioactive gaseous effluent stack radiation monitors setpoints, addition of.a clarification step regarding alarm setpoints lower than the calculated values being acceptable (conservative), and a change in title from RPAP-2 to SUSMAP-2.

No new dose calculation or environmental monitoring locations were identified during this report period.

No licensee-initiated major changes to the radioactive waste systems were made during this reporting period.

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j TABLE 1.1 - RADI0 ACTIVE LIQUID EFFLUENT RELEASES FOR 3rd QUARTER,198_4 l UNITS l JUL l AUG l SEP IQUARTERLY TOTAll

1. Gross Beta Radioactivity l l l l l l a) Total Release l Curies 12.68E-0413.76E-0417.78E-051 7.22E-04 l b) Avg. Conc. before Dilution l pC1/ml 12.83E-06l2.86E-06l7.99E-071 2.24E-06
  • l Avg Conc. Released l pCi/ml l l l l l c) after Oilution labove bkadl5.76E-0916.07E-0912.58E-09] 4.93E-09
  • l
2. Tritium l l l l l l a) Total Release l Curies 12.40E+0119.77E+00l2.89E+011 6.27E+01 I b) Avg. Conc. before Oflutioni pCi/mi 12.56E-0117.65E-0212.99E-011 2.00E-01
  • l Avg Conc. Released l pCi/ml l l l l l c) after Dilution labove bkgdl5.36E-0412.20E-0419.31E-041 5.33E-04
  • l
3. Dissolved Noble Gases l l l l 1 l a) Total Release l Curies l1.95E-0316.35E-051 NSA I 2.01E-03 l b) Avg. Conc. before Dilutioni pC1/ml 12.08E-0519.44E-071 NSA I 1.34E-05
  • I Avg Conc. Released I pCi/ml l l l l l s c) after Dilution labove bkgdl5.31E-0811.80E-091 NSA l 3.39E-08
  • I

/

/ 4. Gross Alpha Radioactivity l I l l l l a) Total Release I Curies 11.38E-06l2.03E-06l1.90E-06l 5.32E-06 1

5. Total Volume of Liquid l l l l l l Released before Dilution l Liters 19.15E+0411.29E+0519.88E+041 _3.19E+05 l
6. Total Volume of Liquid l l l l l l Used for Dilution I Liters 13.58E+07l4.73E+0712.97E+071 1.13E+08 l
7. Estimated Total Radioac- l l l l l l tivity Released by Radio- l l l l l l Isotope abave Background

~ l l l l l l Nuclide MPCw (pCi/ml) l Curies l l l l l 3H I 3.00E-03 l l2.40E+0119.77E+00l2.89E+011 6.27E+01 l 133Xe l 2.00E-04 l 11.95E-0316.35E-051 NSA l 2.01E-03 1 60Co l 5.00E-05 l 11.99E-0611.38E-071 NSA I 2.13E-06 l 137Cs l 2.00E-05 l l NSA 12.06E-06l NSA l 2.06E-06 l l l 1 1 l l l I I l l l l l l 1 l I l l l l l l l l l 1 l l l l l l l l 1 l l l l l

  • Represents a " weighted" average.

~

4.7E-05 = 4.7 x 10 5 5.2E+03 = 5.2 x 10+8 NSA means no significant activity.

i .

TABLE 1.3: LIQUID EFFLUENT RELEASED VIA THE TURBINE BUILDING SUMP AND THE REACTOR BUILDING SUMP (CONTINUOUS RELEASE) 3rd QUARTER 198_4 TURBINE BUILDING SUMP l l l l l10VARTERLY l l MONTH I JUL i AUG I SEP ll TOTAL l l l l l l ll l l VOLUME ILITERS I 3.57E+06 1 3.28E+06 l 3.38E+06 ll 1. 02 E+07_

l l AVERAGE l l l ll l l pCf/ml l 1.27E-05 1 5.58E-06 l 1.21E-05 ll 1.03E-05*l l TRITIUM lT0TAL l l l ll l l l CURIES I 4.53E-02 l 1.83E-02 1 4.09E-02 ll 1.05E-01 1

-l l AVERAGE l l l ll l l l pCi/ml I 7.09E-08 I 7.64E-08 I 8.45E-08 ll 7.65E-08*l l GROSS Ba l TOTAL l l l ll l l l CURIES I 2.53E-04 l 2.51E-04 l 2.86E-04 ll 7.90E-04 l l l AVERAGE l l l ll l l pCi/mi 1.39E-08 l 1.86E-08 l 1.61E-08 ll 1.60E-08*l l GROSS a TOTAL .

l l ll l l l CURIES l 4.96E-05 l 6.11E-05 l 5.45E-05 Ii 1.65E-04 l REACTOR BUILDING SUMP l l l l ll QUARTERLY l IMONTH I JUL l AUG l SEP ll TOTAL l l l l l l ll l l VOLUME ILITERS I 1.36E+06 1 1.03E+06 l 1.44E+06 ll 3.83E+06 l l l AVERAGE l l l ll l l l pCi/ml l 6.04E-03 l 2.61E-04 1 9.92E-05 ll 2.13E-03*l l TRITIUM l TOTAL l l l ll l l l CURIES l 8.22E+00 l 2.69E-01 l 1.42E-01 ll 8.63E+00 l l l AVERAGE l l l ll l l l pCi/mi l 1.66E-06 l 9.01E-08 I 8.89E-08 ll 6.13E-07*l l GROSS Sa l TOTAL l l l ll l l l CURIES I 2.26E-03 1 9.30E-05 l 1.28E-04 ll 2.48E-03 l l l AVERAGE l l l ll l l l pCi/mi i 1.61E-08 l 1.61E-08 l 1.74E-08 ll 1.65E-08*

l GROSS a lT0TAL l l l ll l l CURIES l 2.19E-05 l 1.66E-05 l 2.50E-05 l l 6.35E-05 i Represents " weighted" average

m TABLE 2.1 - RADIOACTIVE GASEOUS EFFLUENT RELEASES FOR 3rd QUARTER, 1984 I UNITS l JUL i AUG I SEP IQUARTERLY TOTAll la. Total Noble Gases l Curies 11.23E+0111.07E-021 NSA l 1.23E+01 I lb. Total Tritium l Curies 15.18E-0211.54E-0214.60E-031 7.18E-02 l Ic. Total Halogens l Curies 11.11E-061 NSA l NSA i 1.11E-06 l Id. Total Particulate Gross l l l l l l (6,T) Activity RT-7325 l Curies 17.98E-0815.37E-0815.91E-081 1.93E-07 _1 le. Total Particulate Gross l l l l l l Alpha Activity RT-7325 l Curies 11.50E-0811.37E-0811.20E-081 4.07E-08 l

2. Maximum Hourly Release l l l l l l Rate for Any One Hour l l l l l l Period l Ci/hr 16.08E-0117.38E-0412.88E-041 7.38E-04 1
3. Estimated Total Radioac- l l l l 1 l tivity Released by Nu- l l l l l l clide l I I l l l Particulates MPCa l Curies i NSA l NSA l NSA l NSA I I l I l l l l l I I I I I I I I I I I I I I I I I I I I I I I I I I l Halogens MPCa(pCi/ml) I Curies l I l l l 1311 l 1.00E-10 I II.11E-061 NSA l NSA l 1.11E-06 l l l l l l l l l l l l l l l 1 1 I I I I I I I I I I l 1 Gases MPCa(pCi/ml) l Curies l I I I I 3H I 2.00E-07 l 15.18E-0211.54E-0214.60E-031 7.18E-02 1 85Kr 3.00E-07 l 18.68E-011 NSA l NSA l 8.68E-01 l 131Xem 4.00E-07 l 11.08E-011 NSA l NSA i 1.08E-01 1 133Xe 1 3.00E-07 l 11.13E+0111.07E-021 NSA i 1.13E+01 1 133Xem I 3.00E-07 l 13.98E-021 NSA l NSA I 3.98E-02 I I l I I l l l 1 I I I I I I I I I I I I I I l l l l 1 I I I l l l l 1 4.7E-05 = 4.7 x 10 5 5.2E+03 = 5.2 x 10+'

NSA means no significant activity.

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TABLE 3.1 - RADI0 CHEMISTRY

SUMMARY

FOR 3rd QUARTER, 1984 Page 1 of 2 l

SYSTEM l ALPHA l BETA l TRITIUM l FARM POND l l l l 12.05E-08 9.42E-08 17.15E-05 l MAXIMUM l1.18E-08 -

6.18E-08 l5.65E-07 l MINIMUM l1.56E-08 (17)l7.45E-08 (17)!1.27E-05 (17)l AVERAGE COOLING TOWER B/D-DURINGl l l l l1.15E-08 12.49E-08 l1.29E-03 l MAXIMUM ll.61E-09 l7.10E-09 11.33E-05 l MINIMUM 14.42E-09 (47)l1.17E-08 (47)l4.91E-04 (47)I AVERAGE COOLING TOWER B/D-WEEKLY l l l l ll.03E-08 l1.78E-08 11.44E-05 l MAXIMUM 12.11E-09 16.46E-09 15.65E-07 i MINIMUM 14.38E-09 (13)ll.17E-08 (13)l2.81E-06 (13)l AVERAGE REACTOR BLDG. SUMP l l l l l2.88E-08 14.33E-05 11.45E-01 l MAXIMUM l1.15E-08 16.43E-08 14.22E-05 l MINIMUM ll.65E-08(108)l6.13E-07(108)l2.13E-03(108)l AVERAGE TURBINE BLDG. SUMP l l l l l3.06E-08 19.42E-08 15.88E-05 l MAXIMUM l1.15E-08 16.16E-08 11.51E-06 l MINIMUM l1.60E-08 (43)l7.65E-08 (43)l1.03E-05 (43)] AVERAGE SYSTEM 21, LOOP 1 l l l l 12.27E-08 19.42E-08 14.21E-04 l MAXIMUM ll.20E-08 16.99E-08 11.10E-05 l MINIMUM l1.61E-08 ( 7)l8.32E-08 ( 7)l2.27E-04 ( 7)l AVERAGE SYSTEM 21, Loop 2 l l l l l1.67E-08 19.40E-08 11.27E-03 l MAXIMUM 11.15E-08 16.55E-08 l1.11E-05 l MINIMUM 11.27E-08 ( 8)l7.54E-08 ( 8)l4.77E-04 ( 8)I AVERAGE SYSTEM 31 l l l l l 1 l l MAXIMUM l l l l MINIMUM l ( 0)l ( 0)l ( 0)] AVERAGE SYSTEM 41 l l l l 11.23E-08 17.82E-08 17.93E-07 l MAXIMUM l1.22E-08 16.43E-08 15.41E-07 l MINIMUM l1.22E-08 ( 3)l6.95E-08 ( 3)l6.38E-07 ( 3)l AVERAGE SYSTEM 42 l l I l l1.20E-08 17.80E-08 17.93E-07 i MAXIMUM 11.15E-08 16.43E-08 15.41E-07 l MINIMUM 11.17E-08 ( 3)l6.93E-08-( 3)l6.38E-07 ( 3)l AVERAGE NOTES: -1. All activities expressed in units of pCi/ml

2. ( ) Represents the number of samples represented by the average value.

TABLE 3.1 - RADI0 CHEMISTRY

SUMMARY

FOR 3rd QUARTER, 1984 Page 2 of 2 SYSTEM l ALPHA l BETA l TRITIUM l SYSTEM 46, LOOP 1 l l l l l2.49E-08 19.43E-08 14.95E-04 l MAXIMUM

-l1.16E-08 16.55E-08 15.10E-05 l MINIMUM 11.58E-08 (13)l7.80E-08 (13)l3.96E-04 (13)l AVERAGE SYSTEM 46, LOOP 2 l l l l 12.27E-08 19.42E-08 11.57E-04 l MAXIMUM l1.16E-08 16.15E-08 18.14E-05 i MINIMUM ll.47E-08 (13)l7.66E-08 (13)l1.10E-04 (13)l AVERAGE SYSTEM 47, LOOP 1 l l l l l2.28E-08 19.11E-08 l6.13E-03 l MAXIMUM l1.16E-08 16.55E-08 15.33E-03 l MINIMUM ll.41E-08 (11)l7.59E-08 (11)l5 79E-03 (11)l AVERAGE SYSTEM 47, LOOP 2 l l l l l1.62E-08 19.42E-08 l .11E-03 l MAXIMUM l1.16E-08 16.55E-08 13.41E-03 l MINIMUM l1.39E-08 ( 4)l8.16E-08 ( 4?,5.74E-03 ( 4)l AVERAGE NOTES: 1. A11' activities expressed in units of pCi/ml 2.- (-) Represents the number of samples represented by the average value.

TABLE 1.1.- RADI0 ACTIVE LIQUID EFFLUENT RELEASES FOR 4th QUARTER, 1984 l UNITS l OCT l NOV l DEC IQUARTERLY TOTALI

1. Gross Beta Radioactivity l I l l l l a) Total Release l Curies 17.66E-05l5.64E-05l3.79E-05l 1.71E-04 I b) Avg. Conc. before Oilutioni pC1/ml 18.19E-07l8.56E-0718.57E-071 8.39E-07
  • l Avg Conc. Released l pC1/mi l l l l l c) after Dilution labove bkgdl2.70E-0913.31E-09l3.03E-091 2.97E-09
  • I
2. Tritium l l l l 1 l a) Total Release l Curies 11.85E+0116.09E+0013.44E+00l 2.80E+01 l b) Avg. Conc. before Dilutioni pCi/ml l2.06E-0119.15E-0217.22E-021 1.41E-01
  • l Avg Conc. Released l pCi/ml l l l l l c) after Dilution labove bkgdl6.74E-0412.83E-0411.81E-041 4.43E-04
  • l
3. Dissolved Noble Gases l l l l l l a) Total Release l Curies l NSA l NSA l NSA l NSA l b) Avg. Conc. before Dilutioni pCi/ml l NSA l NSA l NSA l NSA
  • I Avg Conc. Released l pC1/mi l l l l l c) after Dilution labove bkgdl NSA l NSA l NSA I NSA
  • I
4. Gross Alpha Radioactivity l l l l l l a) Total Release l Curies 11.39E-0611.09E-0611.22E-06l 3.70E-06 l
5. Total Volume of Liquid l l l l l l Released before Dilution l Liters 19.26E+04l6.68E+0414.49E+04] 2.04E+05 l
6. Total Volume of Liquid l l l l l l Used for Dilution l Liters 12.61E+07l1.93E+0711.42E+071 5.97E+07 1
7. Estimated Total Radioac- l l l l l l tivity Released by Radio- l l l l l [

Isotope above Background l l l l l l Nuclide MPCw (pCi/ml) l Curies l l l l l 137Cs l 2.00E-05 l l8.52E-07l NSA l1.35E-06l 2.21E-06 l 60Co l 3.00E-05 l 12.68E-0712.48E-06l5.94E-06l 8.69E-06 l 110Agm l 3.00E-05 l l NSA 18.59E-061 NSA 1 8.59E-06 l 54Mn l 1.00E-04 l l NSA l NSA 18.12E-07] 8.12E-07 l l l l l l l l l l l l I l l l l 1 l- 1 I I I l l 1 l l l l l l 1 l l l l 1 1 I I I I

  • Represents a " weighted" average.

4.7E-05 = 4.7 x 10 5 5.2E+03 = 5.2 x 10+8 NSA means no significant activity.

TABLE'1.3: LIQUID EFFLUENT RELEASED VIA THE TURBINE BUILDING SUMP AND THE REACTOR BUILDING SUMP (CONTINUOUS RELEASE) 4th QUARTER 1984 TURBINE BUILDING SUMP l .

I l l ll QUARTERLY l l MONTH I OCT I NOV l DEC ll TOTAL l l l 1 1 I ll l 1 VOLUME l LITERS I 4.75E+06 l 5.54E+06 l 3.58E+06 ll 1.39E+07 l l l AVERAGE l l l ll l l l pCi/ml '

9.55E-06 l 3.11E-06 l 4.88E-06 ll 5.91E-06*l l TRITIUM ITOTAL l l ll l l ICURIES l 4.53E-02 1 1.72E-02 1 1.75E-02 ll 8.00E-02 I l IAVERAGE l l . l ll l l l pCi/ml l 8.96E-08 l 8.38E-08 l 8.09E-08 ll 8.48E-08*l l GROSS 67 l TOTAL l l l ll l l- ICURIES l 4.25E-04 1 4.64E-04 1 2.90E-04 ll 1.18E-03 l l l AVERAGE l l l ll l l l pC1/ml l 1.29E-08 l 1.55E-08 l 1.89E-08 ll 1.58E-08*l l GROSS a l TOTAL l l- l ll l l l CURIES I 6.13E-05 1 8.59E-05 l 6.77E-05 ll 2.15E-04 l REACTOR BUILDING SUMP l l l l ll QUARTERLY l l MONTH l OCT l NOV l DEC ll TOTAL l l l l l l ll l l VOLUME ILITERS I 8.61E+05 l 6.87E+05 l 1.20E+06 ll 2.75E+06 l l l AVERAGE l l l ll l l l pCi/ml l 1.34E-04 l 1.06E-04 l 8.27E-05 ll 1.04E-04*1 l TRITIUM- l TOTAL l l l ll l 1 ICURIES I 1.15E-01 l 7.28E-02 1 9.92E-02 ll 2.87E-01 l l l AVERAGE l l l ll l l l pCi/ml I 9.21E-08 l 9.52E-08 I 8.30E-08 ll 8.90E-08*]

l GROSS 87 l TOTAL l l l ll l l l CURIES ~ l 7.93E-05 l 6.54E-05 l 9.96E- 05 l l 2.44E-04 l l l AVERAGE. l -l l ll l

.l l pCi/ml l 1.40E-08 l 1.48E-08 l 1.61E-08 ll 1.52E-08*l l GROSS.a l TOTAL l .

l l ll l l l CURIES l 1.21E-05-l 1.02E-05 l 1.93E-05 ll 4.16E-05 l Represents " weighted" average

'T

TABLE 2.1 - RADI0 ACTIVE GASE0US EFFLUENT RELEASES FOR 4th QUARTER, 1984 I UNITS I OCT I NOV l DEC IQUARTERLY TOTALI la. -Total Noble Gases I Curies 11.97E-011 NSA I NSA i 1.97E-01 I lb. Total Tritium l Curies 11.18E-0116.82E-0319.27E-041 1.26E-01 l Ic. Total Halogens I Curies I NSA I NSA I NSA I NSA l Id. Total Particulate Gross l l l l l l (6,r) Activity RT-7325 i Curies 17.85E-0816.28E-0817.14E-081 2.13E-07 l 1e. Total Particulate Gross l l l l l l Alpha Activity RT-7325 i Curies 11.25E-0811.10E-0811.22E-081 3.57E-08 l

2. Maximum Hourly Release l l l l l l Rate for Any One Hour l l l l l l Period l C1/hr 12.31E-0212.07E-0413.52E-05l 2.31E-02 1
3. Estimated Total Radioac- l l l l l l tivity Released by Nu- l l l l l l clide i I l l l l Particulates MPCa I Curies l NSA l NSA l NSA I NSA l l l l l l l l l l l l l l l I I I I I I I I I I I I I I I I I I I I I Halogens MPCa(pCi/ml) I Curies i NSA I NSA I NSA I NSA l l l 1 1 I I I I I I I I I I I I I I I I I l i I I I l 1 I I I I I I I Gases MPCa(pC1/ml) l Curies l I l l l 85Kr 1 3.00E-07 I II.97E-011 NSA I NSA I 1.97E-01 l l 1 I I l I I I I I I I I I I I I I I l 1 l i l l I I I I I I I i l l 1 1 I I I l l I I I I I I I I I I I l l I I I I I I I  !

4.7E-05 = 4.7 'x 10 5 5.2E+03 = 5.2 x 10+'

NSA means no_significant activity.

~

. TABLE 3.1 - ?ADI0 CHEMISTRY

SUMMARY

FOR 4th QUARTER, 1984 Page 1 of 2 SYSTEM l ALPHA l BETA l TRITIUM l FARM POND l l l l 12.60E-08 19.87E-08 l7.64E-05 l MAXIMUM ll.18E-08 17.37E-08 11.61E-06 l MINIMUM 11.58E-08 (10)l8.50E-08 (10)l2.34E-05 (10)l AVERAGE C00' LING TOWER B/D-DURINGl l l l 11.52E-08 12.50E-08 11.22E-03 l MAXIMUM l1.58E-09 18.60E-09 18.60E-06 l MINIMUM 16.50E-09 (28)ll.30E-08 (28)l4.25E-04 (28)I AVER /.3E COOLING TOWER B/D-WEEKLY l l l l l1.51E-08 12.92E-08 12.43E-06 l MAXIMUM 12.86E-09 18.37E-09 13.59E-07 i MINIMUM 17.78E-09 (14)ll.32E-08 (14)l8.81E-07 (14)l AVERAGE REACTOR BLOG. SUMP l l l l l3.09E-08 13.08E-07 11.29E-03 1 MAXIMUM l1.15E-08 16.91E-08 l1.52E-05 l MINIMUM 11.52E-08(125)l8.90E-08(125)l1.04E-04(125)l AVERAGE TURBINE BLDG. SUMP l l l l l4.00E-08 19.46E-08 12.53E-05 i MAXIMUM l1.15E-08 17.18E-08 17.07E-07 l MINIMUM ll.58E-08 (41)l8.48E-08 (41)l5.91E-06 (41)l AVERAGE SYSTEM 21, LOOP 1 l l l l 11.15E-08 19.26E-08 l1.11E-05 l MAXIMUM 11.15E-08 18.81E-08 16.31E-06 l MINIMUM 11.15E-08 ( 2)l9.04E-08 ( 2)l8.68E-06 ( 2)] AVERAGE SYSTEM 21, Loop 2 l l l l l2.01E-08 19.06E-08 13.28E-04 l MAXIMUM ll.16E-08 18.24E-08 l1.70E-05 l MINIMUM l1.49E-08 ( 4)l8.60E-08 ( 4)l1.04E-04 ( 4)l AVERAGE SYSTEM 31 l l l l l l l l MAXIMUM l l l l MINIMUM l ( 0)l ( 0)l ( 0)l AVERAGE SYSTEM 41 l l l l 13.79E-08 18.65E-08 15.68E-07 1 MAXIMUM 11.71E-08 l7.71E-08 l3.76E-07 l MINIMUM 13.09E-08 ( 3)l8.26E-08 ( 3)l4.99E-07 ( 3)l AVERAGE SYSTEM 42 4 l l l 1.64E-08 18.58E-08 15.68E-07 i MAXIMUM 1.17E-08 17.63E-08 13.76E-07 l MINIMUM l1.33E-08 ( 3)l8.20E-08 ( 3)l4.99E-07 ( 3)l AVERAGE NOTES: 1. All' activities expressed in units of pCi/ml

2. ( ) Represents the number of samples represented by the average value.

TABLE-3.1 - RADI0 CHEMISTRY

SUMMARY

'FOR 4th QUARTER, 1984 Paga 2 of 2 t '

SYSTEM l ALPHA l BETA l TRITIUM l SYSTEM 46, LOOP 1 l l l l 11.63E-08 19.26E-08 13.77E-04 l MAXIMUM ll.15E-08 l8.38E-08 12.65E-04 i MINIMUM ll.24E-08 ( 6)l8.83E-08 ( 6)l3.35E-04 ( 6)l AVERAGE SYSTEM 46, LOOP 2 l l l l 11.63E-08 19.26E-08 18.90E-05 l MAXIMUM ll.15E-08 18.38E-08 18.21E-05 i MINIMUM 11.24E-08 ( 6)l8.89E-08 ( 6)l8.58E-05 ( 6)l AVERAGE SYSTEM 47, LOOP 1- 1 I l l

_ ll.63E-08 19.26E-08 15.17E-03 l MAXIMUM l1.15E-08 18.24E-08 l2.21E-03 l MINIMUM ll.31E-08 ( -3)l8.63E-08 ( 3)l4.17E-03 ( 3)l AVERAGE SYSTEM 47, U)0P 2 l l l l 12.01E-08 19.06E-08 l5.91E-03 l MAXIMUM l1.15E-08 18.71E-08 l5.42E-03 l MINIMUM ll.44E-08 ( 3)l8.86E-08 ( 3)l5.60E-03 ( 3)l AVERAGE

-i AllactivitiesexpressedinunitsofpCi/ml

. NOTES: 1.

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Public Service Company T C#Menle

.V 16805.WCR 19 1/2, Platteville, Colorado 80651-9298 March 8, 1985 Fort St. Vrain Unit #1 P-85079 Regional Administrator i- - @bb Attn: Mr. E. H. Johnson /

Region IV U. S. Nuclear Regulatory Commission W22m 611 Ryan Plaza Drive, Suite 1000 y b Arlington, Texas 76011 --

~

Docket No. 50-267

SUBJECT:

Semi-Annual Radioactive Effluent Release Report

Dear Sir:

Attached please find the Semi-Annual Radioactive Effluent Release Report for the Fort St. Vrain Nuclear Generating Station.

This report covers the period July 1, 1984 through December 31, 1984, and_is submitted pursuant to Section 7.5.le of the Fort St. Vrain Technical Specifications.

Please contact Mr. Mike Holmes at (303) 571-8409 if you have any questions regarding this report.

Sincerely, J. W. Gahm Manager, Nuclear Production 4

Fort St. Vrain Nuclear Generating Station JWG:FJB/djc Attachments 3

}4005-RL Tutta 0 0 61 d*

IO 3G9 s

4 cc w/ attachments:

Dottie Sherman, ANI Library American Nuclear Insurers The Exchange Suite, 270 Farmington Avenue Farmington, Connecticut 06032 Mr. Albert J. Hazle, Director Radiation Control Division Colorado Department of Health 4210 E. lith Ave.

Denver, CO 80220 Mr. Mike Dolphin, Site Manager General Atomic Company j P.O. Box 426 Platteville, CO 80651 Mr. Paul B. Smith Regional Representative, Radiation Program U.S. Environmental Protection Agency Region VIII Suite 900, 1860 Lincoln St.

Denver, CO 80203 Mr. Frank Rozich, Director Water Pollution Control Division Colorado Department of Health 4210 East lith Ave.

Denver, CO 80220 Mr. George Campbell Environmental Science Division Rockwell International 123 Building-P. O. Box 464 Golden, CO 80401 Dr. James E. Johnson Radiology & Radiation Biology Dept.

Colorado State University Fort Collins, CO 80523 Mr. G. L..Plumlee, III Senior NRC Resident Inspector.

Fort St. Vrain Station

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