ML20081A797

Semiannual Effluent Rept,Jul-Dec 1983

ML20081A797
Person / Time
Site:	Fort Saint Vrain
Issue date:	12/31/1983
From:	Borst F PUBLIC SERVICE CO. OF COLORADO
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
P-84040, NUDOCS 8403060309
Download: ML20081A797 (17)

Text

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SEMI-ANNUAL EFFLUENT REPORT July - December 1983 Public Service Company Fort St. Vrain Nuclear Generating Station February 1984

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1.0 Summary This report summarizes the radiological effluent released from the Fort St. Vrain Nuclear Generating Station for the period July through December, 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 tequirements of 10 CFR 50.36 a (a) (2).

Tritium was the radionuclide of principal interest released via ,

the liquid pathway during the second half of 1993. A total of approximately 24 curies of tritium was released to tha unrestricted area via batch and continuous releases. This tritium resulted primarily from removal of moisture from the Primary Coolant System.

S Xenon 133 was the predominant radioisotope released from the

. station via the gaseous waste discharge pathway. Approximately 80 curies were released in the second half of 1983.

. Approximately 12 curies of Xenon 135, 3 curies of Krypton 85 and I curie of tritium were released via gas waste discharges.

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

At this time we would like to direct the reader's attention to the following errata, to wit:

1. Table 2.1 of the first Quarter, 1982 report (P-82360) should read as follows for items Id and le:

e l l 1 I I I Qtrly l 1- IUNITS l JAN I FEB l MAR l Total l l1d. Total Particulate Gross l l l l j- l l (6,T) Activity RT-7325 l Curies l4.72E-08l4.79E-08l4.90E-08l1.44E-07l l l l 1 I I I lie. Total Particulate Gross l l l [ [ l l (Alpha) Activit9 RT-7325l Curies l5.7'E-0811.32E-08l1.72E-08l9.25E-08l 1 1 I I I I I This error was calculational in nature and has been

. precluded in subsequent reports through the use of a computer program calculation.

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2. It has been noted that in the~ semi-annual effluent release report for the first half of 1983 (P-83246), the Technical Specification limit for gross beta activity in radioactive liquid effluent was apparently exceeded on several occasions. First, the Technical Specification limit was not exceeded, rather the gross beta activity was all attributable to sulfur 35 activity, which has a higher MPC value than " unknown" radioisotopes. Second, future effluent reports containing this apparent disparity will contain appropriate footnotes for the reader.

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3rd QUARTER, 1983 TAB {Ei.1-RADIOACTIVELIQUIDEFFLUENTRELEASESFOR l UNITS l JUL l AUG l SEP IQUARTERLY TOTALI

1. Gross Beta Radioactivity i I I 1 l l

_ ) Total Release l Curies 11.94E-0511.19E-0415.05E-061 1.43E-04 I b) Avg. Conc. before Dilutioni mci /mi 14.64E-0711.46E-0612.35E-071 9.21E-07

• I Avg Conc. Released l pCi/ml l l l l l c) after Dilution labove bkgdl1.93E-09l2.98E-0911.15E-091 2.33E-09

• l

2. Tritium I l i i l I a) Total Release l Curies 12.09E+00ll.39E+0116.98E-011 1.67E+01 I b) Avg. Conc. before Dilutioni mci /ml 14.80E-0211.91E-0113.31E-021 1.17E-01

• I Avg Conc. Released l pCi/ml l l l l l c) after Dilution labove bkgdl2.23E-0413.28E-0411.82E-04l 2.69E-u4

• I

3. Dissolved Neble Gases l l l l l l a) Total Release l Curies l3.06E-0611.34E-06] NSA l 4.40E-06 l b) Avg. Conc. before Dilutioni mci /mi l1.45E-0711.69E-07l N/A i 1.51E*07

• I Avg Conc. Released [ pCi/ml l l l l l c) after Dilution labove bkadl4.87E-10l1.88E-101 N/A I 4.12E-10 * {

4 Gross Alpha Radioactivity l l l l l i

_ 'a) Total Release l Curies 18.24E-07l4.04E-0614.12E-07] 5.27E-06 l S. Total Volume of Liquid l l l l l l Released before Dilution i Liters 14.24E+0412.24E+0512.15E+04] 2.88E+05 l

6. Total Volume of Liquid l l l l l l Used for Dilution l Liters l1.17E+0713.57E+0714.12E+061 5.15E+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 Nuclide MFCw (pCi/ml) l Curies l l l l l 3H l 3.0E-03 l 12.09E+00ll.39E+0116.98E-011 1.67E+01 l 133Xe 1 2.0E-04 1 13.06E-0611.34E-06l NSA l 4.40E-06 l l ._ l l l l l 1 I I l l l l l l l l l 1 I I I I I I I I I l 1 1 I I I I l i I I I I I l l 1 1 I l l I I I  ! I I I

• Represents a " weighted" average.

4.7E-05 = 4.7 x 10 5 H' 5.2E+03 = 5.2 x 10+2 NSA means no significant activity.

3-6 . . = . ,. .. .

.. TABLE 1.3: ' LIQUID EFFLUENT RELEASED.VIA THE TURBINE BL'ILDING SUMP AND THE REACTOR BUILDING SUMP (CONTINUOUS RELEASE) 3rd QUARTER 1983 TURB1NE BUILDING SUMP l l l l ll QUARTERLY l l MONTH l JUL AUG l SEP ll TOTAL I l .I l l 11 l l VOLUME ILITERS l 2.91E+06 l 3.40E+06 l 2.83E+06 ll 9.14E+06 l l l AVERAGE l l l ll l l I pCi/ml l 1.27E-05 l 3.07E-05 I 5.89E-05 ll 3.39E-05*l l TRITIUM l TOTAL l l l ll l l l CURIES I 3.70E-02 l 1.04E-01 l 1.66E-01 11 3.10E-01 l l l AVERAGE l l l ll l

l. I pCi/ml l 8.34E-08 1 7.64E-08 l 7.laE-08 ll 7.71E-08*l l GROSS ST l TOTAL l l l ll l l l CURIES I 2.43E-04 1 2.64E-04 1 2.02E-04 ll 7.05E-04 l l- l AVERAGE l l ,

l ll l l l pCi/mi l 2.21E-08 l 2.09E-08 l 2.34E-08 ll 2.21E-08*]

l GROSS a -l TOTAL l l l ll l l l CURIES I 6.43E-05 1 7.11E-05 l 6.61E-05 ll 2.02E-04 l REACTOR BUILDING SUMP-l l l l llQUARTERLY l l MONTH I JUL i AUG l SEP ll TOTAL l l .

I I I I ll l l u0LUME ILITERS I 2.00E+06 l 1.34E+06 I 7.06E+05 ll 4.05E+06 I I lAVERAGE l l l ll l ls . l uCi/ml l 9.36E-05 l 2.62E-04 1 3.71E-04 ll 1.84E-04*1

.l TkITIUM .l TOTAL l l l }l l y I l CURIES i 1.87E-01 1 3.51E-01 1 2.62E-01 ll 7.44E-01 1 1 l AVERAGE l l l ll l

l. I pCi/ml I 9.47E-08 l 1.01E-07 l 9.64E-08 11 9.70E-08*]

l GROSS.Br. l TOTAL l l l ll l

.J ,_ [ CURIES l 1.89E-04 1 1.35E-04 l 6.81E-05 ll 3.92E-04 l l- l AVERAGE l l l ll l .

l- I pCi/ml l 1.86E-08 l 1.76E-08 l 1.67E-03 11 1.81E-08*l l GROSS a l TOTAL l l l' ll l l 'I CURIES' 1 3.72E-05 1 2.36E-05 l l'.18E-05 ll 7.32E-05 1 Represents " weighted" average 9

,7 TABLE 2.1 - RAD 10 ACTIVE'GASE0US EFFLUENT RELEASES FOR 3rd QUARTER, 198_3 l UNITS I JUL I AUG I SEP IQUARTERLY TOTALI

14. Total Noble Gases l Curies 14.04E+00ll.86E+0116.34E+001 2.90E+01 1 lb. Total Tritium l Curies 11.87E-0112.03E-01l1.71E-01j 5.61E-01 l 1c, Total Halogens l Curies ! NSA I NSA l NSA I NSA l

-1d. Total Particulate GMss 1. l l l l l (6,T) Activity RT-7325 i Curies 15.62E-0818.20E-0814.80E-081 1.86E-07 l a

10. Total Particulate Gross l l l l l l Alpha Activity RT-7325 I Curies 11.47E-0812.01E-08i1.31E-081 4 . ', ) E-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 15.85E-0215.79E-0116.21E-02l 5.79E-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 I i l  !  !

Particulates MPCa l Curies l NSA l NSA l NSA l NSA l l l l l I I .I I I I I I I l l l 1 l l l l l l l 1 l I I l i I l l l 1

-Halogens MPCa l Curies l NSA I NSA l NSA l NSA l l I I I I I l l l 1 1 I I I l l l l l l 1 1 I I I I l l l l 1 1 I I I Gases MPCa I Curies l l l l l 3H 1 2.0DE-07 1 11.87E-0112.03E-0111.71E-011 5.61E_-01 1 85Krm i 1.00E-07 I II.56E-0116.00L-0114.11E-011 1.17E+00 1 87Kr l 2.00E-08 l 12.62E-0216.72E-0213.45E-021 1.28E-01 l 88Kr 1 2.00E-08 I II.60E-0115.66E-0113.56E-011 1.08E+00 l 133Xe 1 3.00E-07 l 12.83E+00ll.39E+0113.32E+001 2.01E+01 l 133Xem- l 3.00E-07 l 13.96E-02l1.46E-0111.39E-011 3.24E-01 1 135Xe i 1.00E-07 l 18.20E-01l2.70E+00ll.99E+00l 5.51E+00 l 85Kr 1 3.00E-07 l l NSA 14.93E-01l NSA I 4.93E-01 1 131Xem l 4.00E-07 l l NSA 11.10E-0118.11E-021 1.91E-01 l

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4.7E-05 = 4.7 x 10 5

~5.2E+03 = 5.2 x.10+8 NSA means no significant activity.

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Page 1 of 2 TABLE 3.1 - RADI0 CHEMISTRY SU". MARY FOR 3rd QUARTER, 1983 SYSTEM i ALPHA l BETA i TRITIUM l FARM POND l l l l l4.07E-08 18.17E-08 l4.67E-05 l MAXIMUM ll.74E-08 16.40E-08 14.90E-07 i MINIMUM l2.41E-08 (12)l7.29E-08 (12)l4.95E-06 (12)1 AVERAGE REACTOR BLDG. SUMP l l .

l l 13.53E-08 l3.02E-07 l1.20E-03 l MAXIMUM 19.92E-09 16.35E-08 l2.19E-05 l MINIMUM ll.81E-08 (8/)l9.70E-08 (87)l1.84E-04 (87)l AVERAGE TURBINE BLDG. SUMP l l l l l4.58E-08 l1.16E-07 18.04E-05 l MAXIMUM l1.00E-08 16.22E-08 l2.09E-06 l_ MINIMUM l2.21E-08 (41)l7.71E-08 (41)l3.39E-05 (41)l AVERAGE

___ COOLING TOWER B/D-0URINGl l i l t 16.49E-08 14.21E-08 [8.66E-04 l MAXIMUM 12.02F-09 l8.16E-09 12.01E-06 l NINIMUM l1.69E-08 (18)l1.75E-08 (18)l2.36E-04 (18)l AVERAGE COOLING TOWER B/D-AFTER I l l l 13.16E-08 12.32E-08 15.33E-06 l MAXIMUM l_2.02E-09 17.77E-09 14.07E-07 l MINIMUM ll.45E-08 (18)l1.38E-08 (18)l2.10E-06 (18)l AVERAGE COOLING TOWER B/D-WEEKLYi l l l 13.29E-08 l4.07E-08 l5.06E-06 l MAXIMUM l1.73E-09 19.13E-09 14.47E-07 l MINIMUM ll.49E-08 (13)ll.62E-08 (13)l1.86E-06 (l')I AVERAGE SYSTEM 21, LOOP 1 l l l _

l 13.07E-08 l8.17E-08 l1.61E-04 l MAXIMUM 12.02E-08 l6.94E-08 l3.12E-05 l MINIMUM l2.71E-08 ( 3)l7.53E-08 ( 3)l7.87E-05 ( 3)l AVERAGE SYSTEM 21, Loop 2 I I I i l2.02E-08 18.93E-08 l1.17E-04 l MAXIMUM l1.51E-08 e 16.94E-08 14.21E-05 i MINIMUM l1.69E-08 ( 3)l8.01E-08 ( 3)l7.31E-05 ( 3)l AVERAGE SYSTEM 31 l l l l l3.58E-08 l9.35E-08 l1.76E-04 i MAXIMUM 19.87E-09 16.22E-08 11.04E-03  ! MINIMUM l1.77E-08 (44)l7.29E-08 (44)l7.24E-05 (44)l AVERAGE NOTES: 1. All activities expressed in units of UCI/ML

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

Page 2 of 2 LTABLE 3.1 - RADIOCHEMISTRY

SUMMARY

FOR 3rd QUARTER, 1983

~~ SYSTEM i ALPHA l BETA l TRITIUM i SYSTEM 41 l . I 1 1 17.01E-08 18.65E-08 11.18E-06 i MAXIMUM l2.53E-08 17.70E-08 16.41E-07 i MINIMUM 14.20E-08 ( 3)l8.06E-08 ( 3)lf .29E-07 ( 3)l AVERAGE SYSTEM 42 l l [ l 15.08E-08 17.90E-08 11.06E-06 l MAXIMUM ,

12.58E-08 16.95E-08 . [5.0?E-07 i MINIMUM l 3.61E-08 ( 3)l 7.26E-08 ( '3)l 7.34E-07 ( 3)l AVERAGE

_ SYSTEM 45, LOOP 1 I I l l 12.46E-08 l8.17E-08 l8.74E-05 l MAXIMUM ll.02E-03 16.72E-08 15.40E-05 l MINIMUM ll.87E-08 (13)l7.47E-08 (13)l6.77E-05 (13)l AVERAGE SYSTEM 46, LOOP 2 -l l l l 13.03E-08 18.17E-06 11.21E-04 l MAXIMUM l1.00E-08 16.72E-08 19.67E-05 l MINIMUM ll.97E-08 (13)l7.47E-08 (13)l1.12E-04 (13)l AVERAGE SYSTEM 47, LOOP 1 l l l l itc26E-08 16.69E-07 11.44E-03 l MAXIMUM 19.98E-09 16.91E-08 13.14E-04 l MINIMUM 11.68E-08 (13)l1.22E-07 (13)l7.12E-04 (13)I AVERAGE SYSTEM 47, LOOP 2 l l l l 12.23E-08 15.85E-07 12.50E-03 1 MAXIMUM 19.95E-09 17.46E-08 l8.79E-04 l MINIMUM l1.73E-08 (14)l2.39E-07 (14)ll.49E-03 (14)l AVERAGE

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

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

, ' TABLE 1.1 . RAD 10ACT!VE LIQUID EFFLUENT RELEASES FOR 4th QUARTER, 198_3 l UNITS l OCT l NOV I DEC IQUARTERLY TOTAL l

1. Gross Beta Radioactivity- l l l l 1 l a) Total-Release l Curies 16.53E-06l9.68E-0617.71E-061 2.39E-05 l b) Avg. Conc. before Dilutioni mC1/ml 11.47E-0712.50E-07[2.60E-07] 2.17E-07 * [

_ Avg Conc. Released l pCi/ml l l l l l c) after Dilution labove bkgdl5.64E-10l1.37E-09l1.14E-091 9.86E-10

• i

2. Tritium l I l l l 1 r

a) Total Release i Curies 11.33E-0113.13E-0112.10E+001 2.55E+00 1 b) Avg. Conc. before Dilutionl- mci /ml 12.95E-0318.16E-0317.15E-02l 2.30E-02

• I Avg Conc, Released l pCi/ml l l l l l c) after Dilution labove bkgdll.60E-05l4.87E-0513.44E-04l 1.14E-04

• 1 3._ Dissolved Noble Gases l l l l l l

] a) Total Release _ l Curies l NSA 12.868-061 NSA l 2.86E-06 I b) Avg. Conc. before Dilutioni mci /mi i NSA 13.68E-07] NSA l 3.68E-07

• I Avg Conc. Released l jiCi/ml l l l l l c) after Dilution labove bkgdl NSA l1.87E-091 ASA l 1.87E-09

• l

4. Gross Alpha Radioactivity l l l~ 'l l l a) Total' Release I Curies 18.71E-0716.78E-0715.38E-071 2.09E-06 l

5. Total Volume of Liquid l l l l l l Released before Dilution l Liters l4.44E+0413.88E+0412.99E+04l 1.13E+05 ,1

' 6. Total Volume of Liquid l l l l l Used for Dilution [l , Liters 19.02E+0616.40E+0615.88E+06l 2.13E+07 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 l l l ~[

Nuclide MPCw (pC1/ml) l Curies l l l l l 3H -l _3.0E-03 l l1.33E-0113.13E-0112.10E+00l 2.55E+00 1 133Xe l 2.0E-04 l l NSA l2.86E-061 NSA I 2.86E-06 l l l l l 1 l I l j l l l l 1 I l l 1 I

, l l 1 l l l l l l l l l 1 I l l l l l I 1 1 I I I I l l l _ l~ l l l l 1

" Represents a " weighted" average.

~

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

NSA means no significant activity.

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SBLE L3: LIQUID EFFLUENT RELEASED VIA THE TURBINE BUILDING" $ UMP AND THE REACTOR P"t. DING SUMP (CONTINUGUS RELEASE) 4th QUARTER 198J TURBINE .iUILD!hu SU$iP l l l l ll QUARTERLY l l MONTH l OCT l NOV I DEC ll TOTAL l l-. I I l l ll l 1 VOLUME ILITERS I 3.07E+06 l 3.05E+06 1 3.57E+06 ll 9.69E+06 l

~g l AVERAGE j' l l ll l

.l~ l uCi/ml I 8.06E-05 l 7.14E-05 l 8.79E-05 11 8.00E-05*l l TRITIUM- l TOTAL l l l ll l

'l l CURIES _ l 2.47E-01 1 2.18E-01 1 3.14E-01 ll 7.75E-01 l l l AVERAGE l l l ll l

- J LyCi/ml l 6.73E-08 l 6.75E-08 l 6.67E-08 ll 6.72E-08*l l GROSS-ST l TOTAL l l l _

ll l l l CURIES l 2.n7E-04 l 2.06E-04 l~ 2.38E-04 11 6.51E-04 1

1. lAVERAGE l l l ll l l J_pCi/ml i 1.77E-08 l 1.58E-08 l 1.85E-08 ll 1.73E-08*l l GROSS a ll TOTAL l l l ll l 1 ICURIES I 5.43E-05 1 4.83E-05 l 6.60E-05 ll 1.68E-04 l REACTOR BUILDING SUMP-l l l l ll QUARTERLY l l MONTH I OCT l NOV I DEC ll TOTAL 1 l l 1 1 I ll l

-l VOLUME ILITERS l 7.54E+05 1 1.00E+06 l 1.01E+06 ll 2.76E+06 l

l. l AVERAGE A l l l ll l l ~l'vC1/ml l' 2.40E-04 l 1.65E-03 l 4.71E-04 11 7.97E-04*]

l TRITIUM _ l TOTAL l l l -ll l l l CURIES l -

1.81E-01 1 1.66E+00 l 4.76E-01 ll 2.20E+00 l

.I l AVERAGE l l .

l ll l

-l 1_pCi/ml 1 8.12E-08 l 7.59E-08-l 8.09E-08 ll 7.93E-08*l l' GROSS Sr l TOTAL . l l l ll l 1 l CURIES I 6.13E-05 1 7.62E-05 1 8.17E-05 II 2.19E-04 l l l AVERAGE l l l l1 l

'l I pCi/ml l 1.68E-08 l 1.67E-08 l 1.75E-08 ll 1.70E-08*l l_-GROSS a l TOTAL l -l _l ll l l l CURIES l 1.27E-05 l 1.68E-05 l 1.77E-05 ll 4.69E-05 l sp

'

• Represents " weighted" average F

_ m___ _ _ _ _ _ . _ _ _ _ _ . - _ _ _ _ _ _ _ _ . . _ _ . _ _ _ _ _ _ . _ _ _ _ . _ _ _ _ . _ _ . _ _ _ _ _ _ _

TABLE 2.1 - RADIDACTIVE GASE0US EFFLUENT RELEASES FOR Rh QUARTER, 19_83 l UNITS l OCT l NOV I OEC l QUARTERLY TOTAL l la. Total Noble Gases l Curies 17.10E+0013.04E+0113.73E+01l 7.48E+01 l lb. Total Tritium l Curies 11.81E-0111.11E-0111.04E-011 3.96E-01 l 1,c . Total Halogens l Curies l NSA I NSA I NSA l NSA l

- 1d. Total Particulate Gross l l l l l l (6,7) Activity RT-7325 l Curies 15.82E-0816.13E-0816.53E-081 1.85E-07 l

le. Total Particulate Gross l l l l l l Alpha Activity RT-7325 I Curies 11.48E-0811.49E-0811.34E-08] 4.31E-08 l

2. Max', mum Hourly Release l l l- l l l Rate for Any One Hour l l l l l l Pe?iod l C1/hr 16.54E-02il.56E+0011.64E+001 1.64E+00 1

3. Estimated Total Radioac- l l l l l l tivity Released by Nu- -l l l l l l c11de (MPCa) l I l l l l

- Particulates- MPCa l Curies i NSA l NSA l NSA l NSA l

-l I I l l l l l . I l l l l 1 I . 1 I I I l l I I I I I I I  ! I I I I I Halogens MPCa I Curies l NSA l NSA l NSA l NSA l l l l l l l l l 1 l l l l l l l 1 I I I l l l 1 l l l 1 1 I I I I I

- Gases MPCa Curies l l ~l l _

l

_3 H_, I l 11.81E-0111.11E-0111.04E-011 3.96E-01 1 85Krm i 1.00E-07 l 14.64E-0115.21E-0115.21E-011 1.51E+00 1 87Kr 1 2.00E-08 1 12.17E-0217.16E-0115.61E-021 7.94E-01 l 88Kr 1 2.00E-08 l 13.15E-01]l.10E+0014.90E-011 1.90E+00 1 133Xe 1 3.00E-07 l 13.60E+00l2.40E+0113.22E+011 5.99E+01 I

-133Xem I 3.00E-07 1 11.46E-0112.36E-0115.12E-011 8.93E-01 l 135Xe l 1.00E-07 l 12.55E+00ll.39E+00l2.51E+001 6.45E+00 1 85Kr l 3.00E-07 I I NSA 11.75E+00l3.17E-011 2.07E+00 1 131Xem I 4.00E-07 l l NSA 16.60E-0117.11E-011 1.37E+00 l 41Ar l 4.00E-08 l l NSA 16.77E-031 NSA I 6.77E-03 l

~

- 4.7E-05 = 4.7 x 10

5.2E+03'= 5.2'x 10+'

NSA means no significant activity.

7

.\

N.

_m -

. TABLE 3.1 - RADI0 CHEMISTRY

SUMMARY

FOR 4th QUARTER, 1983 Page 1 of 2 SYSTEM 3 l ALPHA l BETA l TRITIUM i FARM POND l l l 1

-13 74E-08 11.43E-07 11.54E-04 i MAXIMUM it.31E-08 l6.24E-08 14.98E-07 l MINIMUM 12.41E-08 (13)l 7.53E-08 (13)ll.46E-05 (13)I AVERAGE REACTOR BLDG. SUMP l l l l 13.52E-08 15.11E-07 19.37E-03 i MAXIMUM 19.85E-09 16.17E-08 11.10E-04 l MINIMUM l1.70E-08 (91)l7.93E-08 (91)l7.97E-04 (91)! AVERAGE TURBINE BLDC. SUMP l l l l 13.56E-08 l7.51E-08 11.42E-04 l MAXIMUM 19.82E-09 L6.03E-08 12.34E-05 i MINIMUM 11.73E-08 I39)l6.72E-08 (39)l8.00E-05 (39)I AVERAGE COOLING TOWER B/D-DURINGl l l l l4.89E-08 18.08E-08 18.46E-04 l MAXIMUM -

l7.37E-09 l6.79E-09 l3.14E-06 l MINIMUM 12.67E-08 (15)l2.23E-08 (15)ll.06E-04 (15)l AVERAGE COOLING TOWER B/D-AFTER l . l l ___ l 14.36E-08 11.06E-07 14.s/E-05 1 MAXIMUM l5.06E-09 17.42E-09 14.87E-07 l MINIMUM 12.30E-08 (15)l3.02E-08 (15)l4.89E-06 (15)l AVERAGE COOLING TOWER B/D-WEEKLYI l l l 14.42E-08 17.28E-08 14.04E-05 l MAXIMUM ll.05E-08 17.67E-09 l4.98E-07 i MINIMUM l2.32E-08 (13)l2.74E-08 (13)l6.98E-06 (13)1 AVERAGE SYSTEM-21, LOOP 1 l l l l 12.01E-08 17.49E-08 11.34E-04 l MAXIMUM

.l1.41E-08 16.48E-08 19.98E-05 l MINIMUM

-l1.71E-08 ( 3)l6.83E-08 ( 3)ll.12E-04 ( 3)] AVERAGE SYSTEM 21, Loop 2 l- l l l l2.55E-08 17.49E-08 11.31E-04 l MAXIMUM ll.00E-08 16.48E-08 19.98E-05 l MINIMUM ll.65E-08 ( 3)l6.83E-08 ( 3)ll.12E-04 ( 3)I AVERAGE SYS1EM 31 l l l l 13.54E-08 18.73E-08 11.93E-04 l MAXIMUM

__ 19.77E-09 16.02E-08 15.17E-05 l MINIMUM __

l1.80E-08 (63)l6.84E-08 (63)l1.26E-04 (63)] AVERAGE NOTES: 1. Ail 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 4th QUARTER, 1983 Page 2 of 2 SYSTEM l ADHA l BETA l TRITIUM l SYSTEM 41 i l l 1 16.43E-08 l1.87E-07 l7.08E-07 l MAXIMUM l3.35E-08 17.15E-08 l4.92E-07 1 MINIMUM l5.32E-08 ( 3)ll.10E-07 ( 3)l5.74E-07 ( 3)l AVERAGE

_ SYSTEM _42 I I i l 12.20E-08 17.08E-08 15.23E-07 i MAXIMUM 11.00E-08 16.42E-08 14.92E-07 i MINIMUM l1.57E-08 ( 3)l6.82E-08 ( 3)l5.04E-07 ( 3)I AVERAGE SYSTEM 46, LOOP 1 l l l l 12.21E-08 17.51E-08 12.70E-04 l MAXIMUM 19.84E-09 16.17E-08 II.58E-04 l MINIMUM ll.68E-08 (13)l6.78E-08 (13)l2.28E-04 (13)I AVERAGE SYSTEM 46, LOOP 2 l l l l 13.04E-08 19.82E-08 11.40E-04 l MAXIMUM l1.41E-08 16.02E-08 11.11E-04 l MINIMUM 11.84E-08 (13)l6.99E-08 (13)ll.27E-04 (13)i AVERAGE _

. SYSTEM 47, LOOP 1 l l l l 13.04E-08 18.75E-08 l9.34E-04 i MAX 1 MUM 19.85E-09 16.02E-08 12.78E-04 l MINIMUM _

il.79E-08 (13)l6.92E-08 (13)l4.95E-04 (13)l AVERAGE SYSTEM 47, LOOP 2 l 1 1 1 12.03E-08 l2.30E-07 15.36E-03 i MAXIMUM 19.94E-09 16.20E-08 12.22E-04 -NIIIIMUM l1.61E-08 (13)l8.29E-08 (13)12.21E-03 (13)i AVERAGE h.

! NOTES: -1. All. activities expressed in units of UCI/ML 2 -(.) Represents the number of samples represented by the average value.

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%@@@UM@ % February 2, 1984 Jh Fcrt St. Vrain FER ? T 1984 ,

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Mr. John T. Collins Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Dr., Suite 1000 Arlington, TY 76011 5UBJECT: 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 July 1, 1983 through December 31, 1983, and is submitted pursuant to the requirements of 10CFR 50.36 a (a) (2). Pcr a telephone conversation on January 24, 1984, with Mr. Philip Wagner of your staff, the reporting requirements of the Fort St. Vrain Technical Specifications, Issue 37, Section i.5.le, will be utilized starting with the report covering the first six months of 1984.

Based on a previous agreement with Mr. Wagner, meteorological data for the pariod of this report are r.ot included, but are maintained at Fort St. Vrain for review by NRC personnel.

Very truly yours, k dC

• Sh Frederick .' Borst Radiation Protection Manager Fort St. Vrain Nuclear Generating Station FJB/djc j i

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i 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 Regulat1on U. S. Nuclear Regulatory Commission c/o Distribution Services Branch, DDC, ADM Washington, DC 205b5 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 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 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 Collfns, CO 80523 Mr. G. L. Plumlee, III Senior NRC Resident Inspector Fort St. Vrain Station Mr. Don W. Warembourg, Manager Nuclear Production Fort St. Vrain Station W

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