ML20024E426

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Semiannual Effluent Rept,Jan-June 1983. W/830714 Ltr
ML20024E426
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 07/31/1983
From: Borst F
PUBLIC SERVICE CO. OF COLORADO
To: Jay Collins
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
P-83246, NUDOCS 8308150019
Download: ML20024E426 (15)
v • d • e


Text

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SEMI-ANNUAL EFFLUENT REPORT J,anuary - June 1983 Public Service Company Fort St. Vrain Nuclear Generating Station

  • July 1983 8300150019 830731 PDR ADOCK 05000267 R PDR

1.0 Summary This report summarizes the radiological effluent released from the Fort St. Vrain Nuclear Generating Station for the period January' through June, 1983. In addition, Table 3.1 furnishes a general summary of the primary plant systems under radiological surveillance, and Table 4.1 summarizes the solid waste removed from the site during the aforementioned time period. This information is provided pursuant to the requirements of 10 CFR 50.36 a (a) (2).

Tritium was the radionuclide of principal interest released via the liquid pathway during the first half of 1983. A total of approximately 346 curies of tritium was released to the unrestricted area via batch and continuous releases. This tritium resulted from removal of moisture from the Primary Coolant System.

Xenon 133 was the predominant radioisotope released from the station via the gaseous waste discharge pathway. Approximately 43 curies were released in the first half of 1983.

Approximately 2 curies of Krypton 85 and 1 curie of tritium were released via gas waste discharges.

For the first time in the history of Fort St. Vrain, low level radioactive waste was removed from the sta ti on . Approximately 850 cubic feet of waste, consisting of irradiated graphite reflector blocks and reserve shutdown material, was removed from site. The waste contained approximately '1;8 curies of activity.

TABLE 1.1 - RADIDACTIVE L10VID EFFLUENT RELEASES FOR 1 QUARTER, 1983

+

i UNITS l JAN l FEB (1)l MAR (1)l QUARTERLY TOTALI

1. Gross Beta Radioactivity l l l l l l a) Total Release l Curies 19.05E-05l2.24E-0312.67E-03l 5.01E-03 l b) Avg. Conc. before Dilutioni mci /ml 12.75E-0714.94E-06!5.76E-061 3.50E-06
  • l Avg Conc. Released l pCi/mi l l l l l c) after Dilutian labove bkgdl2.04E-0911.08E-0811.08E-08] 7.54E-09
  • l
2. Tritium l l l l l l a) Total Release l Curies 12.09E-0116.40E+0114.88E+011 1.13E+02 l b) Avg. Conc. before Dilutioni mC1/ml 11. 71E-0311.81E-0111.75E-01l 1.11E-01
  • I Avg Conc. Released l pCi/ml l l l l _l c) after Dilution labove bkgdl8.74E-0613.42E-04l3.20E-04l 2.09E-04
  • I
3. Dissolved Noble Gases l l l l l l a) Total Release l Curies 12.57E-06l9.09E-05l4.68E-051 1.40E-04 l b) Avg. Conc. before Dilution l mci /mi 11.93E-0711.95E-0614.48E-071 9.08E-07
  • I Avg Conc. Released l pC1/ml l l l l l c) after Dilution labove bkgdl8.32E-1012.26E-0918.34E-101 1.31E-09
  • i
4. Gross Alpha Radioactivity l l l l l l t) Total Release l Curies 15.29E-0611.11E-0511.38E-051 3.02E-05 l
5. Total Volume of Liquid l l l l l l Released before Dilution l Li ters 13.08E+0516.67E+0519.35E+051 1.91E+06 l
6. Total Volume of Liquid l l l l l l Used for Dilution l Liters 12.32E+0711.85E+0812.33E+081 4.42E+08 I
7. Estimated Total Radioac- l l l l l l tivity Released by Radio- l l l l l l Isotope above Background l l l l l l Nuclide MPCw (uCi/ml) l Curies l l l l l 3H l 3.00E-03 l 12.09E-0116.40E+0114.88E+011 1.13E+02 1 60Co l 5.00E-05 l 12.62E-071 NSA l NSA I 2.62E-Oi i 133Xe l 2.00E-04 l 12.57E-06l9.09E-05l4.68E-05l 1.40E-04 l 35S I 6.00E-05 l l NSA 16.57E-04l NSA l 6.57E-04 l 1 l 1 1 I l l 1 1 I l l 1 1 I I I I I l l 1 I l l I l l l l l l I I l l l 1 -l l I I
  • Represents a " weighted" average.

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

NSA means no significant activity.

(1) Includes activity released from the liquid waste system via the reactor building sump.

I TABLE 1.3: LIQUID EFFLUENT RELEASED VIA THE TURBlNE

, BUTLDING SUMP AND THE REACTOR BUILDING SUMP l (CONTINUOUS RELEASE) l 1 QUARTER 1983 TURBINE BUILDING SUMP l l l l ll QUARTERLY l

__ l MONTH I JAN i FEB l MAR I! TOTAL I I l l 1 l 11 l l VOLUME ILITERS l 7.34E+06 1 7.91E+06 l 1.25E+07 ll 2.78E+07 l 1 lAVERAGE l l l ll l l L_pCi/ml l 5.70E-05 1 3.77E-05 l 2.84E-05 ll 4.15E-05*l l TRITIUM ITOTAL l l l ll l l  ! CURIES I 4.18E-01 1 2.98E-01 l 3.55E-01 ll 1.15E+00 I l l AVERAGE l l l ll l l l pCi/ml l 5.66E-08 l 7.06E-08 l 7.01E-08 ll 6.55E-08*l l GROSS 67 l TOTAL  ! l l ll l l l CURIES I 4.16E-04 1 5.58E-04 l 8.76E-04 ll 1.82E-03 l l l AVERAGE l l l ll l l [ pCi/ml l 1.56E-08 1 1.56E-08 l 1.52E-08 ll 1.55E-08*l l GROSS a l TOTAL l l l ll l l l CURIES l 1.15E-04 l 1.23E-04 l 1.90E-04 ll 4.31E-04 l REACTOR BUILDING SUMP l l I l lIQUARTERLY l l MONTH I JAN  ! FEB (1) l MAR (1) ll TOTAL l l 1 l 1 I ll l l VOLUME ILITERS 1 1.14E+06 1 7.97E+05 l 1.35E+06 ll 3.29E+06,J l l AVERAGE l l l ll l l LpCi/ml l 3.62E-04 l 7.73E-02 1 5.18E-02 ll 4.93E-02*]

l TRITIUM l TOTAL i (1) l l ll l l l CURIES I 3.57E-01 l 6.16E+01 l 6.99E+01 ll 1.62E+02 I l l AVERAGE l l l ll l l L pCi/ml 1 1.62E-07 1 4.24E-06 1 6.81E-06 ll 4.50E-06*J l GROSS Sr l TOTAL l l l ll l l l CURIES 1 1.84E-04 1 3.38E-03 1 9.19E-03 ll 1.48E-02 I l IAVERAGE l l l ll l l l pCi/nl l 1.72E-08 l 1.73E-08 l 1.43E-08 ll 1.60E-08*l l GROSS a l TOTAL l l l ll l l l CURIES l 1.96E-05 l 1.38E-05 l 1.93E-05 ll 5.26E-05 I Represents " weighted" average (1) Excluding activity resulting from liquid waste releases from the sump.

TABLE 2.1 - RADI0 ACTIVE GASEOUS EFFLUENT RELEASES FOR 1 QUARTER,1983 l UNITS l JAN l FEB l MAR IQUARTERLY TOTAll Lla. Total Noble Gases l Curies 13.04E+0012.26E+0118.66E+00l 3.43E+01 l lb. Total Tritium l Curies ll.18E-01l2.45E-0113.57E-011 7.21E-01 l 1c. Total Halogens l Curies l NSA l NSA I NSA I NSA l Id. -Total Particulate Gross l l l l l l (8,T) Activity RT-7325 i Curies 16.49E-0815.29E-0817.72E-081 1.95E-07 l 1e, Total-Particulate Gross l l l l l l (Alpha Activity RT-7325 l Curies 11.28E-0811.13E-0Sil.58E-08] 3.99E-08 l

~

2. Maximum Hourly Release l l l l l l Rate for Any One Hour j l l l l l Period l C1/hr 11.67E-02l2.58E-0113.21E-011 3.21E-01 1
3. Estimated Total Radioac- l l l l l l tivity Released by Nu- l l l l l l clide (MPCa) l l l l _ l l Particulates MPCa l Curies l NSA l NSA l NSA I NSA l l l l 1 l l 1 l l l I I l l l I I l l- 1 I I I I I I I I I l i l l l l Halogens MPCa l Curies l NSA l NSA l NSA l NSA I l I l l I I l l l l l l l l 1 1 I I l l l l l l l l l l 1 I I l l l l Gases MPCa l Curies I l l l l 85Krm i 1.00E-07 l 19.82E-0211.72E-0311.55E-021 1.15E-01 1 87Kr l 2.00E-08 l 11.10E-02] NSA 12.07E-031 1.31E-02 I 88Kr l -2.00E-08 l 18.21E-02l1.40E-0318.03E-031 9.15E-02 l 133Xe 1 3.00E-07 l 12.14E+00l2.14E+0118.14E+001 3.17E+01 1 133Xem l 3.00E-07 l 17.63E-0216.98E-02l7.78E-021 2.24E-01 l 135Xe i 1.00E-07 l 16.37E-0111.85E-0211.38E-011 7.93E-01 1 3H I 2.00E-07 l 11.18E-0112.45E-0113.57E-01l 7.21E-01 1 85Kr i 3.00E-07 l 1 NSA l7.90E-0111.81E-011 9.71E-01 L 131Xem l 4.00E-07 l l NSA 12.91E-0119.57E-02l 3.87E-01 l 4.7E-05 = 4.7 x 10 5 i

5.2E+03 = 5.2 x 10+'

NSA means no significant activity.

\

.- _ . - , ~

TABLE 3.1 - RADI0 CHEMISTRY

SUMMARY

FOR 1 QoARTER, 1983 Page 1 of 2 SYSTEM l ALPHA l BETA l TRITIUM i FARM POND I l l l ll.49E-08 l5.60E-08 14.23E-05 l MAXIMUM l1.49E-08 l5.60E-08 14.23E-06 l MINIMUM ~

11.49E-08 ( 1)l5.60E-08 ( 1)l4.23E-06 ( 1)l AVERAGE REACTOR BLOG. SUMP l l l l 14.96E-08 18.17E-05 l3.06E-01 l MAXIMUM 19.53E-09 15.41E-08 13.83E-05 l MINIMUM 11.60E-08(221)l4.50E-06(221)l4.93E-02(221)l AVERAGE TURBINE BLOG. SUMP l l l l l2.53E-08 18.77E-08 11.20E-04 l MAXIMUM 19.62E-09 15.02E-08 17.11E-06 l_ MINIMUM ll.55E-08 (34)l6.55E-08 (34)l4.15E-05 (34)l AVERAGE COOLING TOWER B/O-DURINGl l l l 14.01E-08 11.28E-07 17.36E-04 l MAXIMUM l9.81E-10 16.02E-09 16.69E-07 l MINIMUM l1.18E-08(102)l3.95E-08(102)l1.46E-04(102)l AVERAGE COOLING TOWER B/O-AFTER l l l l l3.44E-08 19.72E-08 11.60E-04 1 MAXIMUM 19.81E-10 16.36E-09 16.39E-07 l MINIMUM l1.30E-08 (33)l4.25E-08 (33)ll.43E-05 (33)! AVERAGE COOLING TOWER B/D-WEEKLY l l l l 12.53E-08 19.33E-08 13.51E-04 l MAXIMUM ll.91E-09 17.98E-09 16.40E-07 l MINIMUM l1.34E-08 (13)l4.66E-08 (13)l6.62E-05 (13)I AVERAGE SYSTEM 21, LOOP 1 l l l l 12.20E-08 17.08E-08 11.58E-04 l MAXIMUM 19.83E-09 15.38E-08 16.69E-05 l MINIMUM l1.70E-08 ( 7)l6.43E-08 ( 7)l1.02E-04 ( 7)I AVERAGE SYSTEM 21, Loop 2 l l l l 12.38E-08 18.90E-08 13.18E-04 l MAXIMUM 19.62E-09 l5.38E-08 18.49E-05 l MINIMUM l1.64E-08 ( 9)l6.69E-08 ( 9)ll.33E-04 ( 9)l AVERAGE SYSTEM 31 l l l l l2.53E-08 11.11E-06 14.54E-03 l MAXIMUM

~ 19.64E-09 15.38E-08 11.61E-04 l MINIMUM 11.53E-08 (19)l1.41E-07 (19)ll.00E-03 (19)l AVERAGE

-NOTES: 1. All activities expressed in units of UCI/ML .

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

TABLE 3.1 - RADI0 CHEMISTRY

SUMMARY

FOR _1_ QUARTER, 1983 Page 2 of 2 SYSTEM l ALPHA 1 BETA I TRITIUM l SYSTEM 41 I l l l 12.92E-08 16.21E-08 11.29E-06 l MAXIMUM l1.66E-08 15.39E-08 16.43E-07 i MINIMUM 12.17E-08 ( 3)l5.92E-08 ( 3)l8.67E-07 ( 3)I AVERAGE SYSTEM 42 l l_ l l II.93E-08 16.21E-08 17.32E-07 1 MAXIMUM ll.35E-08 15.22E-08 16.43E-07 1 MINIMUM ll.65E-08 ( 3)l5.86E-08 ( 3)l6.77E-07 ( 3)l AVERAGE SYSTEM 46, LOOP 1 l l l l 12.20E-08 19.03E-08 11.66E-04 l MAXIMUM 19.62E-09 15.66E-08 17.87E-05 l MINIMUM ll.51E-08 (33)l6.74E-08 (33)ll.13E-04 (33)l AVERAGE SYSTEM 46, LOOP 2 l l l l 12.20E-08 19.17E-08 11.67E-04 l MAXIMUM 19.62F-09 ~

l5.66E-08 l5.86E-05 l MINIMUM 11.54E-08 (33)l6.74E-08 (33)l1.22E-04 (33)l AVERAGE SYSTEM 47, LOOP 1 l l l l l2.53E-08 11.11E-06 l4.54E-03 l MAXIMUM 19.64E-09 15.38E-08 11.61E-04 l MINIMUM ll.53E-08 (19)ll.41E-07 (19)ll.00E-03 (19)! AVERAGE SYSTEM 47, LOOP 2 l l l l-12.53E-08 l2.02E-06 19.30E-03 l MAXIMUM 19.64E-09 15.38E-08 11.28E-04 i MINIMUM ll.43E-08 (29)l4.12E-07 (29)l3.44E-03 (29)I AVERAGE l

1 l

t

.NGTES: 1. All activities expressed in units of UCI/ML

2. ( ) Represents the number of samples represented

-by the average value.

TABLE 1.1 - RADI0 ACTIVE LIQUID EFFLUENT RELEASES FOR 2nd QUARTER, 1983  !

l UNITS I APR l MAY l JUN IQUARTERLY TOTALI

1. Gross Beta Radioactivity l l l l l 1 a) Total Release i Curies 11.17E-02l2.68E-04l1.23E-041 1.21E-02 l b) Avg. Conc. before Dilutioni mC1/ml 16.46E-05l2.17E-0612.61E-061 1.95E-05
  • I Avg Conc. Released l pCi/mi l l l l l c) after Dilution labove bkgdl4.81E-0817.82E-0918.63E-091 1.91E-08
  • I
2. Tritium l l l l l l a) Total Release l Curies l8.07E+0112.68E+00l2.26E+001 8.57E+01 I b) Avg. Conc. before Oilutioni mCOml 19.71E-0112.24E-0214.92E-02l 2.90E-01
  • l Avg Conc. Released l pCi/mi l l l l l c) after Dilution labove bkgdl5.72E-0411.06E-04fl.72E-04l 2.48E-04
  • l
3. Dissolved Noble Gases l I i l l 1 a) Total Release l Curies 12.10E-04l NSA l NSA I 2.10E-04 l b) Avg. Conc. before Dilutioni mci /ml l8.10E-061 NSA I NSA i 8.10E-06
  • l Avg Conc. Released l pC1/ml l l l l l c) after Dilution labove bkgdl2.62E-091 NSA l NSA l 2.62E-09
  • l
4. Gross Alpha Radioactivity I l l l l l a) Total Release l Curies l9.07E-06l3.10E-0611.01E-06l 1.32E-05 l
5. Total Volume of Liquid l l l l l l Released before Dilution I Liters 14.85E+0511.72E+05l4.63E+04] 7.03E+05 l
6. Total Volume of Liquid l l l l l l Used for Dilution l Liters l1.07E+08l3.08E+0711.21E+071 1.50E+08 l

-7. Estimated Total Radioac- l l l l l l tivity Released by Radio- l l l l l l Isotope above Background l I I I I I Nuclide MPCw (pCi/ml) l Curies l l l l l 3H I 3.00E-03 1 18.07E+0112.68E+0012.26E+001 8.57E+01 1 133Xe 1 2.00E-04 1 12.10E-04l NSA l NSA l 2.10E-04 1 35S 1 6.00E-05 l 13.27E-0213.22E-04l NSA l 3.30E-02 l 137Cs l l 15.38E-081 NSA l NSA I 5.38E-08 _1 60Co l 5.00E-05 l 15.22E-071 NSA l NSA i 5.22E-07 l l l l l I I l l I I i l I l l 1 l 1 I l l l l l l l l l 1 I i l l l l

  • Represents-a " weighted" average.

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

NSA means no significant activity. '

TABLE 2.1 - RADI0ACT!UE GASEOUS EFFLUENT RELEASES FOR 2nd QUARTER, 1983 1 UNITS I APR I MAY I JUN IQUARTERLY.TOTALI la. Total Noble Gases l Curies 11.11E+0111.27E-0211.64E+001 1.28E+01 I lb. Total Tritium l Curies 13.71E-0117.98E-0211.03E-011 5.54E-01 l Ic. Total Halogens l Curies I NSA I NSA I NSA l NSA l Id. Total Particulate Gross l l l l l l (6,1) Activity RT-/325 i Curies 15.65E-0816.31E-0815.41E-081 1.74E-07 i le. . Total Particulate Gross l l l l l l

( Alpha Activity RT-7325 l Curies 11.58E-08l1.86E-0811.72E-081 5.16E-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 12.68E-01l1.20E-0311.26E-02l 2.68E-01 l
3. Estimated Total Radioac- l l l l l l tivity Released by Nu- l l l l l l clide (MPCa) l l l l l l Particulates MPCa l Curies I NSA I NSA I NSA I NSA I I I I I I I I I I l l I l l I I I I I I I I I I i l I I I I I l  ! . I I Halogens MPCa l Curies ! NSA l NSA l NSA l NSA i l l l l 1 I I I I I I I I I l l I I I I l l I I I I I I I I I L l l I Gases MPCa l Curies l l l l l 3H I 2.00E-07 l 13.71E-0117.98E-0211.03E-011 5.54E-01 1 85Kr i 3.00E-07 I II.00E+001 NSA l NSA i 1.00E+00 1 131Xem l 4.00E-07 l 12.63E-0113.03E-031 NSA 1 2.66E-01 1 133Xe 1 3.00E-07 l 19.87E+0016.02E-0311.08E+001 1.10E+01 1 133Xem I 3.00E-07 I II.27E-02] NSA 19.44E-041 1.36E-02 l 85Krm i 1.00E-07 I I NSA 12.35E-0416.52E-021 6.54E-02 1 135Xe I 1.00E-07 l l NSA 13.39E-0314.35E-011 4.18E-01 1 87Kr l 2.00E-08 l l NSA 1 NSA 19.06E-031 9.06E-03 I 88Kr I 2.00E-08 l l NSA l NSA 16.49E-021 6.49E-02 1 4.7E-05 = 4.7 x 10 5 5.2E+03 = 5.2 x 10+8 NSA means no significant activity.

1

TABLE 3.1 - RAD 10CHEMfSTRY SUMMARV'FOR 2nd QUARTER, 1983 Page 1 of 2 f

SYSTEM l ALPHA l BETA l TRITIUM l FARM POND l l l l 10.00E-01 10.00E-01 10.00E-01 l MAXIMUM 10.00E-01 l0.00E-01 l0.00E-01 l MINIMUM l0 00E-01 (00)l0.00E-01 (00)l0.00E-01 (03)l AVERAGE REACTOR BLOG. SUMP l l l l l3.56E-08 13.07E-05 19.55E-02 l MAXIMUM 19.9dE-09 l6.65E-08 18.39E-06 l MINIMUM 11.82E-08(126)l2.18E-06(126)l6.98E-03(126)I AVERAGE TURBINE BLDG. SUMP l l l l 12.84E-08 14.96E-07 11.86E-04 i MAXIMUM l1.00E-08 l6.39E-08 12.84E-06 l_ MINIMUM l1.81E-08 (39)l 8.92E-08 (39)l 2.12E-05 (39)l AVERAGE i COOLING TOWER B/D-DURINGl l l l

, 18.51E-09 11.06E-07 11.05E-03 i MAXIMUM ll.51E-09 17.02E-09 11.67E-06 l MINIMUM 13.91E-09 (35)l2.78E-08 (35)l3.35E-04 (35)] AVERAGE COOLING TOWER B/D-AFTER I l l l 11.01E-08 12.29E-08 15.00E-05 l MAXIMUM 11.40E-09 l6.73E-09 16.62E-07 l MINIMUM 13.46E-09 (29)l1.03E-08 (29)l3.81E-06 (29)l AVERAGE

, COOLING TOWER B/D-WEEKLY l l l l 17.49E-09 l2.39E-08 l1.50E-04 l MAXIMUM 11.71E-09 17.46E-09 16.79E-07 [ MINIMUM l3.40E-09 (13)ll.28E-08 (13)l2.03E-05 (13)I AVERAGE SYSTEM 21, LOOP 1 l l l l 12.65E-08 18.89_E-08 14.67E-05 l MAXIMUM 11.42E-08 16.39E-08 l1.32E-05 l MINIMUM ll.94E-08 ( 8)l7.84E-08 ( 8)l2.51E-05 ( 8)l AVERAGE SYSTEM 21, Loop 2 l l l l 12.65E-08 18.89E-08 18.91E-05 l MAXIMUM ll.42E-08 16.65E-08 l1.27E-05 l MINIMUM ll.94E-08 ( 8)l7.74E-08 ( 8)l3.73E-05 ( 8)l AVERAGE SYSTEM 31 l l l l l2.61E-08 18.89E-08 l3.88E-05 l MAXIMUM ll.00E-08 16.53E-08 l1.03E-05 l MINIMUM 11.75E-08 (15)l7.57E-08 (15)ll.84E-05 (15)! AVERAGE a

I NOTES: 1. All activities expressed in units of UCI/ML

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

TABLE 3.1 - RADI0 CHEMISTRY

SUMMARY

FOR 2nd QUARTER, 1983 Page 2 of 2 SYSTEM l ALPHA l BETA l TRITIUM i SYST$M 41 l l l l

_ l 2. 26_E-08 18.85E-08 11.24E-06 l MAXIMUM 11.42E-08 ._[6.64E-08 16.86E-07 l MINIMUM ll.90E-08 ( 3)l7.71E-08 ( 3)l8.85E-07 ( 3)l AVERAGE SYSTEM 42 l l l l

12. 26_E-08 18.85E-08 l7.37E-07 l MAXIMUM l1.42E-08 16.39E-08 16.78E-07 l MINIMUM ll.90E-08 ( 3)l 7.63E-08 ( 3)l 7.01E-07 ( 3)l AVERAGE SYSTEM 46, LOOP 1 l l l l l2.84E-08 19.61E-08 11.37E-04 l MAXIMUM 19.94E-09 l6.39E-08 16.33E-05 l MINIMUM l1.88E-08 (25)l7T36E-08 (25)l6.48E-05 (25)! AVERAGE

__ _ SYSTEM 46, LOOP 2 l l l l

_ l2.84E-08 l8.89E-08 11.56E-04  ; MAXIMUM 19.94E-09 l6.39E-08 l1.11E-04 l MINIMUM 11.90E-08 (25)i7.33E-08 (25)ll.30E-04 (25)l AVERAGE SYSTEM 47, LOOP 1 l l l l l3.04E-08 16.11E-07 l4.64E-03 l MAXIMUM 19.96E-09 l7.15E-08 l3.20E-04 l MINIMUM l1.78E-08 (22)ll.83E-07 (22)l2.11E-03 (22)l AVERAGE SYST$M 47, LOOP 2 l l l l l2.8_4E-08 11.61E-06 16.45E-03 l MAXIMUM l9.92E-09 17.21E-08 11.66E-04 l MINIMUM 11.88E-08 (16)l 5.47E-07 (16)l3.29E-03 (16)l AVERAGE l

NOTES: 1. All activities expressed in units of UCI/ML

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

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Mr. John T. Collins '

s  !!

Regional Administrator p- 2 g 3: q U. S. Nuclear Regulatory Commission "

Region IV _ L I.d 611 Ryan Plaza Dr., Suite 1000 Arlington, TX 76011 --

SUBJE?T: Semi-Annual Effluent Release Report

Dear Mr. Collins:

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

This report covers the period January 1, 1983 through June 30, 1983, and is submitted pursuant to the requirements of 10CFR 50.36 a (a) (2).

Very truly yours, s

[}&diacL Frederick J. Borst

[bt Radiation Protection Manager Fort St. Vrain Nuclear Generating Station FJB/djc

)t hlh j

cc w/ attachment:

Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission c/o Distribution Services Branch, DDC, ADM Washington, DC 20555 (6 Copies)

Director, Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission c/o Distribution Services Branch, DDC, ADM Washington, DC 20555 Mr. Albert J. Hazle, Director Radiation Control Division Colorado Department of Health 4210 E. 11th Ave.

Denver, CO 80220 Mr. Mike Dolphin, Site Marager General Atomic Company P.O. Box 426 '

Platteville, CO 80651 Mr. Paul B. Smith Regional Representative, Radiation Progran 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 Ms. Lynn Palmer, Engrg. Librarian American Nuclear Insurers The Exchange, Bldg. 3, Loft A. Suite 323 Farmington Ave.

Farmington, Connecticut 06032

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 l Mr. Don W. Warembourg, Manager Nuclear Production Fort St. Vrain Station 4

e

_ .-

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