ML20127J381

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Effluent & Waste Disposal Semiannual Rept for Jan - June 1978
ML20127J381
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 06/30/1978
From: Mayer L
NORTHERN STATES POWER CO.
To:
References
NUDOCS 9211190321
Download: ML20127J381 (14)
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Text

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NSD M NORTHERN STATES POWER COMPANY M I N N E A PO L.l s . M I N N E S OTA 55401 August 21, 1978

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Mr J G Keppler, Director, Region Ill Of fice of Inspection & Enforcement U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn. IL 60137

Dear Mr Keppler:

MONTICELID NUCLEAR GENERATING PLANT Docket No. 50-263 License No..DPR-22 Ef fluent and Waste Disposal Seniannual Report for January 1-June 30,1978 and Revised Report for July 1-December 31, 1977 In accordance with the Monticello Technical Specifications, Appendix A to Operating License DPR-2 2, we are submitting two copies of the Effluent and Waste Disposal Semiannual Report cove ring the period Janua ry 1,19 78 through June 30, 1978.

Two copies of a revised Effluent and Waste Disposal Semiannual ,

Report covering the period July 1, 1977 through December 31, 1977 are also attached. Minor errors were found in the original report during a review of the data used in preparing it.

Yours very truly, c b Jt y L 0 Mayer, PE Manager of Nuclear Support Services LOM/DMM/deh cc: Director, IE, USNRC c/o DSB (6)

G Charnoff MPCA Attn: J W Ferman -

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I 4 PAGE 1

!' MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 19T8

, NORTHERN STATES POWER COMPANY LICENSE NO. OPR-22 i (

EFFLUENT AND WASTE DISPOSAL SEMI ANNUAL REPORT SUPPLEMENTAL INFORMATION i 1. REGULATORY LIMITS - QTRLY LEVELS REQUIRING REPORT TO NRC A. NOBLE GASES:

i 50*(QTV*NBARV+ QTS *NBARS) = 1 AND l 25*(QTV*MBARV+ QTS *MBARS) = 1 QTV = NOBLE GAS RELEASE RATE FROM BLOG VENTS (CI/SEC)

' QTS = NOBLE GAS RELEASE' RATE FROM PLANT STACK (CI/SEC)

NBARV = VENT AVG GAMMA AIR DOSE FACTOR (REM /YR PER CI/SEC)

NBARS = STACK AVG GAMMA AIR DOSE FACTOR (REM /YR PER CI/SEC) i MBARV = VENT AVG BETA AIR DOSE FACTOR (REM /YR PER CI/SEC)

MBARS = STACK AVG BETA AIR DOSE FACTOR (REM /YR PER C1/SEC)'

B. 10 DINES AND PARTICULATES:

, 50*(3.7E05*QV+2.5E04*QS) = 1 QV = BUILDING VENT RELEASE RATE OF 10 DINES AND PARTICULATES 4

(' WITH HALF-LIVES GREATER THAN 8 DAYS (CI/SEC) 3 QS = PLANT STACK RELEASE RATE OF IODINES AND PARTICULATES l WITH HALF-LIVES GREATER THAN 8 DAYS (CI/SEC)

A C. LIQUID EFFLUENTS:

j CONCENTRATION - 10CFR20, APP B, TABLE II, COL 2,

AND NOTES THERETO l TOTAL QUANTITY - 2.5 CI/ QUARTER
2. AVERAGE DOSE FACTORS FOR' NOBLE GASES (REM / YEAR'PER CI/SEC):

VENT RELEASES STACK-RELEASES IST QTR 2ND-QTR IST QTR 2ND QTR i

KBAR'(BODY GAMMA) 5.97E 00 5.97E 00 1.48E 00 1.52E 00 LBAR (SKIN BETA) 4.53E 01 4.54E 01 1.57E:00 1.63E'00 MBAR (AIR-BETA) 4.79E 01 4.80E 01-1.67E 00 1.73E 00

! NBAR (AIR-GAMMA) 6.31E 00 6.31E 00 1.54E 00 1.58E=00

3. AVERAGE ENERGY:

4 - - (NOT APPLICABLE) 3 *

]. 3 D ent

REGULATORY DOCKET FILE Pa8 Wir ab e-zt-78

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J PAGE 2 MONTICELLO NUCLEAR GENERATING PLANT PERIOD JAN - JUN 1978 l (ORTHERN STATES POWER COMPANY LICENSE NO. DPR-22 J

EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT SUPPLEMENTAL INFORMATION (CONTINUED)

4. MEASUREMENTS AND APPROXIMATIONS OF TOTAL RADI0 ACTIVITY:
A. NOBLE GASES:

. CONTINUOUS GROSS ACTIVITY MONITORS IN REACTOR BUILDING VENT AND PLANT

] STACK EXHAUST STREAMS. WEEKLY ISOTOPIC ANALYSIS OF STEAM JET AIR EJECTOR STREAM. MONTHLY ANALYSIS OF STORAGE TANK CONTENTS. -

i

8. 10 DINES IN GASEOUS EFFLUENT
CONTINUOUS MONITORING WITH CHARCGAL CARTRIDGES IN REACTOR BUILDING VENT AND PLANT STACK EXHAUST STREAMS WITH WEEKLY ANALYSIS.

j!

C. PARTICULATES IN GASEOUS EFFLUENT:

CONTINUOUS MONITORING WITH P ARTICULATE FILTERS IN REACTOR BUILDING VENT AND PLANT STACK EXHAUST STREAMS WITH WEEKLY ANALYSIS.

D. TRITIUM IN GASEOUS EFFLUENT:

! CONTINU0US MONITORING WITH SILICA GEL CARTRIDGES IN REACTOR BUILDING l VENT AND PLANT STACK EXHAUST STREAMS WITH BIWEEKLY ANALYSIS.

1 (

E. LIQUID EFFLUENTS:

TANK SAMPLE ANALYZED PRIOR TO RELEASE WITH CONTINUOUS MONITORING OF GROSS ACTIVITY DURING RELEASE.
5. BATCH RELEASES:

A. LIQUID:

1. NUMBER OF BATCH RELEASES. 0
2. TOTAL TIME PERIOD FOR BATCH RELEASES NA MIN
3. MAXIMUM TIME PERIOD FOR A BATCH RELEASE NA ~ MIN
4. AVERAGE TIME PERIOD FOR A BATCH RELEASE NA MIN
5. MINIMUM TIME PERIOD FOR A BATCH RELEASE NA MIN
6. AVERAGE RIVER FLOW DURING RELEASES NA CF/SEC B. GASEOUS
1. NUMBER OF BATCH RELEASES 0 2.-TOTAL TIME PERIOD-FOR BATCH RELEASES NA MIN
3. MAXIMUM TIME PERIOD.FOR A BATCH RELEASE NA MIN
4. AVERAGE TIME PERIOD FOR A BATCH RELEASE NA- . MIN
5. MINIMUM. TIME PERIOD FOR A BATCH RELEASE NA MIN
6. ABNORMAL RELEASES:

A. LIQUID:

1. NUMBER OF RELEASES 0 k'- 2. TOTAL ACTIVITY RELEASED 0.0 CI B. GASEOUS:
1. NUMBER OF RELEASES- 0 78235o2.T3
2. TOTAL ACTIVITY RELEASED 0.0 CI yyd '7Zo31 Erd # k EDj

i * .

l i .I PAGE 3

l 4 MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 1978

! -NORTHERN STATES POWER COMPANY ' LICENSE NO. DPR-22 i

( ,

l l EFFLUENT AND WASTE DISPOSAL SEMI ANNUAL REPORT i

j. I

, TABLE 1A GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES 1 I

l 4

UNITS LST QTR 2ND QTR PCNT EST l ERROR i j - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ = = -

j_ A. NOBLE GASES:

1. TOTAL RELEASE A. ELEVATED RELEASE CI 1.41E 03 1.45E 03
8. BUILDING VENT RELEASE CI 7 10E 02 4.56E 02 l C. TOTAL CI 2.12E 03 1.91E 03 5.00E 01
2. AVERAGE RELEASE RATE

i A. ELEVATED RELEASE UCI/SEC 1.82E 02 1.85E 02

B. BUILDING VENT RELEASE UCI/SEC 9.13E 01 5.80E 01
C. TOTAL UCI/SEC 2.73E 02 2.42E 02 5.00E 01

! 3. PERCENT TECH SPEC QTRLY REPORTING LEVEL 1.17E 01 7.76E 00 S. IDDINES:

l 1. TOTAL I-131 l A. ELEVATED RELEASE. CI 8.21E-03 1.36E-02

B. BUILDING VENT RELEASE CI 9.10E-04 2.40E-03 L C. TOTAL CI 9.12E-03 1.60E-02 5.00E 01
2. AVERAGE I-131 RELEASE RATE:

A. ELEVATED RELEASE- UCI/SEC 1.06E-03-1.73E-03 B. BUILDING VENT RELEASE UCI/SEC. 1.17E-04 3.05E-04 C. TOTAL UCI/SEC 1.17E-03 2.03E-03.5.00E 01 I

C. LONG LIVED PARTICULATES AND GROSS ALPHA RELEASES:

1. TOTAL PARTICULATESt.

A. ELEVATED RELEASE CI 2.77E-03 1.52E-03 B. BUILDING VENT-RELEASE- CI 8.25E-04 7.40E-04 C.. TOTAL CI 3.60E-03 2.26E-03.5 00E 01 l

2. AVERAGE RELEASE RATE:

A.-ELEVATED RELEASE _

_UCI/SEC 3.57E-04 1. 93 E-04  ;

B. BUILDING VENT RELEASE UCI/SEC 1.06E-04 9.41E -C. TOTAL UCI/SEC 4.63E-04 2.87E-04~5.00E 01

-N

3. PERCENT. TECH SPEC QTRLY-REPORTING LEVEL 5.89E-01'9.79E-01 '

FOR LONG LIVED 10 DINES C PARTICULATES-f l

50- % 3 ^

- 782.sso24

. _. - - -- -.-. - . S W B5

l . I 4

j PAGE 4 MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 1978 3 NORTHERN STATES POWER COMPANY LICENSE NO. OPR-22

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EFFLUENT AND WASTE DISPOSd,L SEMI ANNUAL REPORT TABLE 1A GASEDUS EFFLUENTS - SUMMATION OF ALL RELEASES (CONTINUED)

UNITS IST QTR 2ND QTR PCNT EST ERROR

4. GROSS ALPHA RADIDACTIVITY:

A. ELEVATED RELEASE CI 8. 61 E-08 1.14 E-07 B. BUILDING VENT RELEASE CI 1.19E-06 1.56E-06 C. TOTAL CI 1 28E-06 1.67E-06 1.00E 02 I

0. TRITIUM:

1 1. TOTAL RELEASE: '

A. ELEVATED RELEASE CI 1.52E 00 2.09E 00 B. BUILDING VENT RELEASE CI 8.43E 01 2.77E 01 C. TOTAL CI 8.58E 01 2.98E 01 5.00E 01

2. AVERAGE RELEASE RATE:

A. ELEVATED RELEASE UCI/SEC 1.95E-01 2.65E-01 l B. BUILDING VENT RELEASE UCI/SEC 1.08E 01 3.52E 00

( C. TOTAL UCI/SEC 1.10E 01 3.79E 00 5.00E 01 l

O l

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' - PAGE 5 MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 1978 NORTHERN STATES POWER COMPANY LICENSE NO. OPR-22 O

EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT

! TABLE 18 GASEOUS EFFLUENTS - ELEVATED RELEASE CONTINUOUS MODE SATCH MODE NUCLIDES RELEASED UNITS IST QTR 2ND QTR IST QTR 2ND QTR

1. NOBLE GASES:

XE133 CI 1.85E 02 1.38E 02 0.0 0.0 XE135 CI 1.80E 01 1.73E 01 0.0 0.0 KR85M CI 2.69E 00 2.74E 00 0.0 0.0 KR88 CI 9.00E 00 9.23E 00 0.0 0.0 KR87 CI 1.58E 01 1.65E 01 0.0 0.0 XE138 CI 3.73E 02 3.93E 02 0.0 0.0 KR90 CI 1.07E 01 1.16E 01 0.0 0.0

XE139 CI 3.20E 01 3.44E 01 0.0 0.0
KR89 CI 3.16E 02 3.39E 02 0.0 0.0 XE137 CI 4.12E 02 4.42E 02 0.0 00
XE135M CI 2.41E 01 2.56E 01 0.0 0.0 KR83M CI 3.19E 00 3.32E 00 0.0 0.0 XE133M CI 6.34E-01 3. 72 E -01 0.0 0.0

, f'iXE131M CI 9.32E-01 8.846-01 0.0 0.0 CI j KR85 9.05E 00 1.73E 01 0.0 0.0 TOTAL FOR PERIOD CI 1.41E 03 1.45E 03 0.0 0.0

2. 10 DINES:

I-131 CI 8.21E-03 1.36E-02 0.0 0.0

- I-133 CI 2.15E -0 2 3.66E-02 0.0 0.0

I-135 CI <2. 0 4E -0 2 < 2. 65 E-02 0.0 0.0 TOTAL FOR PERIOD CI 4.23E-02 6.09E-02 0.0 0.0 TOTAL (WITH MDA VALUES) CI <5.01E-02 <7.67E-02 0.0- 0.0

__ . .- . - . . = . .- . . . - . .--- - ..

PAGE 6 MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 1978 i NORTHERN STATES POWER COMPANY LICENSE NO. OPR-22

+. .

EFFLUENT AND WASTE DISPUSAL SEMIANNUAL REPORT TABLE IS GASEOUS EFFLUENTS - ELEVATED RELEASE (CONTINUED):

]

CONTINUOUS MODE BATCH MODE NUCLIDES RELEASED UNITS IST QTR 2ND QTR 1ST QTR 2ND QTR j 3. PARTICULATES:

ND147 CI <4.96E-06 <2.89E-06 0.0 0.0 CE144 CI <3.9 9E-0 5 < 1. 90E-05 0.0 0.0 CE141 CI < 1. 6 8 E -06 < 3 .13 E -0 6 0.0- 0.0 i BA140 CI 2.34E-03 1.19E -03 0.0 0.0 I

CS137 CI 3.83E-05 3. 00E -05 0.0 0.0

} CS136 .

CI <3.52E-06 <2.13 E-06 0.0- 0.0 1 CS134 CI < 4. 2 9E -0 6 <4. 9 8 E-06 0.0 0.0

S8126 CI <2.35E-06 <1.41E-06 0.0 0.0 58124 CI <3.46E-06 <2.13E-06 0.0 0.0

, RU103 CI <1.69E-06 <1.02E-06 0.0 0.0 ZR95 CI <3.3 6E-06 <2.05E-06 0.0 0.0 i

N895 CI <2.19E-06 <1.14E-06 0.0 0.0 SR90 CI 8.96E-06 5.33E-06 0.0 0.0 l (~ SR89 CI 3.42E-04 2.73 E-04 0.0 C.0 i ZN65 CI <4.60E-06 <2.85E-06 0.0 0.0 i

C060 CI <4.78E-06 <3.60E-06 0.0 0.0 FE59 CI <4.42E -06 <2. 6 8 E-06 0.0 0.0 C058 CI <1.99E-06 <1.17E-06 0.0 0.0 C057 CI <1.32E-06 <6.69E-07 0.0 0.0 MN54 CI <1.73E-06 <1.05E-06 0.0 0.0 CR51 CI <1.40E-05 <8.77E-06 0.0 0.0 s

( TOTAL FOR PERIOD CI 2.77E-03 .1.52E-03 0.0 0.0

TOTAL (WITH MDA VALUES) CI <2.83E-03 <1.56E-03 0.0 0.0 i

i _

i (

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PAGE 7 MONTICELLO NUCLEAR GENERATING PLANT PER100: JAN - JUN 1978

,, NORTHERN STATES POWER COMPANY LICENSE NO. OPR-22 EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT ,

TABLE 1C G ASEOUS EFFLUENTS - BUILDING VENT RELEASE CONTINUOUS MODE BATCH MODE NUCL10ES RELEASED UNITS 1ST QTR 2ND QTR 15T QTR 2ND QTR

1. NOBLE GASES:

XE133 CI 6.69F-01 3.89E-01 0.0 0.0 XE135 CI 1.0LE 01 6.11E 00 0.0 0.0 KR85M CI 1.56E 00 9.61E-01 0.0 0.0 KR88 CI 5.25E 00 3.21E 00 0.0 00 KR87 CI 9.26E 00 5.80E 00 0.0 0.0 XE138 C1 2.17E 02 1.39E 02 0.0 0.0 KR90 CI- 6.26E 00 4.06E 00 0.0 0.0 XE139 CI 1.87E 01 1.21E 01 0.0 0.0 KR89 CI 1.84E 02 1.19E 02 0.0 0.0 XE137 .

CI 2.41E 02 1.55E 02 0.0 0.0 XE135M CI 1.41E 01 9.00E 00 0.0 0.0 KR83M CI 1.86E 00 1.16E 00 0.0 0.0 XE133M CI 3.04E-02 1.80E-02 0.0 0.0

( XE131M C1 1.07E-03 6.79E-04 0.0 0.0 KR85 CI 3.91E-03 4.33E-03 0.0 0.0 TOTAL FOR PERIOD CI 7.10E 02 4.56E 02 0.0 0.0

2. 100!NES:

I-131 CI <1.77E-03 <2.54E-03 0.0 0.0 1-133 CI <1.49E-02 <1.55E-02 0.0 0.0 1-135- CI <4.27E-02 <3.55E-02 0.0 0.0 TOTAL FOR PERIOD CI 3 .76E -03 9.52E-03 0.0 0.0 TOTAL (WITH MDA. VALUES) CI <5 93E-02 <5.36E-02 0.0 0.0

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PAGE 8 MONTICELLO NUCLEAR GENERATING PLANT PERIOD JAN - JUN 1978 NORTHERN STATES POWER COMPANY LICENSE NO. OPR-22

('T EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT TABLE 1C GASEOUS EFFLUENTS - BUILDING VENT RELEASES (CONT!NUED)

CONTINU0US MODE BATCH MODE NUCLIOES RELEASED UNITS 1ST QTR 2ND QTR 1ST QTR 2ND QTR

3. PARTICULATES:

, N0147 CI <2.54E-05 <1.I1E-05 00 00 CE144 CI <3.20E-05 <1.52E-05 0.0 0.0 CE141 CI <9.53E-06 <1.58E-05 0.0 0.0 8A140 C1 4.19E -04 4.40E-04 0.0 0.0 CS137 CI 1.21E-04 7.77E-05 0.0 0.0 CS136 CI <1 21E-05 <6.46E-06 0.0 0.0 CS134 CI <2.2 6E-05 <2.11E-0 5 0.0 0.0 58126 CI <8.2 5E -06 <4. 2 2 E-06 0.0 0.0 58124 CI < 9. 8 0E -0 6 < 5. 92E-06 0.0 0.0 RU103 CI <6.28E-06 <3.32E-06 0.0 0.0 ZR95 CI <1.18E-05 <6.35E-06 0.0 0.0 N895 CI <7.05E-06 <3.24E-06 0.0 0.0 SR90 CI 2.15E-05 6.75E-06 0.0 0.0

( Sii89 CI < 2. 00 E -0 5 3.10E-05 0.0 0.0 IN65 CI <1.6 0E-05 < 1.01E-05 0.0 0.0 C060 CI 2 18E-04 <1.52E-04 0.0 0.0 FE59 CI <1.45E-05 <8.57E-06 0.0 0.0 C058 CI <6.85E-06 <3.67E-06 0.0 0.0 C057 CI <4.27E-06 <1.92E-06 0.0 0.0 MN54 CI <9.07E-06 <3.80E-06 0.0 0.0 CR51 CI <5.09E-05 <2.93E-05 0.0 0.0 TOTAL FOR PERIOD CI 8.25E-04 7.40E-04 0.0 00 TOTAL (WITH MDA VALUES) CI <1.05E-03 <8.5BE-04 0.0 0.0

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i PAGE 9

! MONTICELLO NUCLEAR GENERATING PLANT PERIOD JAN - JUN 1978  !

, NORTHERN STATES POWER COMPANY LICENSE NO. OPR-22 i

EFFLUENT AND WASTE DISPOSAL SEMI ANNUAL REPORT i

i TABLE 2A LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES i UNITS ISY QTR 2ND QTR PCNT EST j ERROR

)

A. FISSION AND ACTIVATION PRODUCTS *

! 1. TOTAL RELEASE CI 0.0 0.0 0.0

) (EXCEPT H-3, GASES, AND ALPHA) 4 2. AVG DILUTED CONCENTRATION UC1/ML 0.0- 0.0 j 3. PERCENT QTRLY TECH SPEC REPORTING LEVEL 0.0 0.0 l B. TRITIUMt

, 1. TOTAL RELEASE CI 0.0 0.0 0.0

2. AVG DILUTED CONCENTRATION UCI/ML 0.0 0.0
3. PERCENT QTRLY TECH SPEC REPORTING LEVEL NA NA C. DISSOLVED AND ENTRAINED GASES:

b 1. TOTAL RELEASE CI 0.0 0.0 0.0

2. AVG DILUTED CONCENTRATION UC1/ML 0.0 0.0
3. PERCENT QTRLY TECH SPEC REPORTING LEVEL NA NA i
D. GROSS ALPHA RADI0 ACTIVITY

i 1. TOTAL RELEASE CI 0.0 0.0 0.0 E. VOLUME OF WASTE RELEASED LITERS 0.0 0.0 0.0 j F. VOLUME OF DILUTION WATER USED LITERS 0.0 0.0 0.0 i

1 4

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PAGE 10 ,

j

) MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 1978

! g NORTHERN STATES POWER COMPANY LICENSE NO. DPR-22 h

i EFFLUENT AND WASTE DISPOSAL SEMI ANNUAL REPORT

.i TABLE 28 LIQUID EFFLUENTS e

CONTINUOUS MODE BATCH MODE NUCLIOES RELEASED UNITS IST QTR 2ND QTR IST QTR 2ND QTR  !

j NONE i

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PAGE 11 MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 1978 NORTHERN STATES POWER COMPANY LICENSE NO. DPR-22 n

EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT TABLE 3 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL 8

1. TYPE OF WASTE:

PCNT EST UNITS TOTAL ERROR A. SPENT RESINS, FILTER St.UDGES, CU METER 3.31E 01 EVAPORATCR BOTTOMS, ECT. CI 2.46E 02 5.00E 01

8. DRY COMPRESSIBLE WASTE, CU METER 3.81E 01 CONTAMINATED EQUIP, ECT. CI 2.52E 00 5.00E 01 C. IRRADIATED COMPONENTS, CU METER 8.41E 00 CONTROL RODS, ECT. CI 6.28E 04 5.00E 01 D. OTHER (DESCRIBED BELOW):

("5 NONE

2. ESTIMATE OF MAJOR NUCLIDE COMPOSITION BY TYPE OF WASTE:

TYPE NUCLIDE PERCENT A CS137 3.00E 00 ZN65 3.70E 01 CD60 5.50E 01 B CS137 3.00E 00 ZN65 3.70E 01 C060 5.50E 01 C C060 9.50E 01 MN54 5.01E 00 k.

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MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 19T8 NORTHERN STATES POWER COMPANY LICENSE NO. OPR-22 l

()

EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT i

4 TABLE 3 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS (CONTINUF.D) 4 j 3. SOLID WASTE DISPOSITION:

NUMBER OF SHIPMENTS MODE DESTINATION

+

- - -- ------------- ---- - - - - - - - - - - - - - - ---~~

l 2 TRUCK NUC ENG CO., SHEFFIELD, ILLINDIS 5 TRUCK CHEM NUC INC., BARNWELL, S. C.

I 14 TRUCK NUC ENG CO., RICHLAND, WASH.

B. IRRADIATED FUEL SHIPMENTS:

] NUMBER OF SHIPMENTS MODE DESTINATION NONE 4

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PAGE 13 MONTICELLO NUCLEAR GENERATING PLANT PERIOD: JAN - JUN 19T8

, ORTHERN STATES POWER COMPANY LICENSE NO. OPR-22 EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT NOTES:

====--

1. RELEASE OF INDIVIDUAL NOBLE GAS ISOTOPES FROM THE PLANT STACK WAS DETERMINED USING AN ISOTOPIC ANALYSIS AT THE STEAM JET AIR EJCECTOR. XE133, XE135, KR85M, KR88, KR8T, AND XE138 WERE MEASURED AND USED TO CHARACTERIZE THE MODE OF GAS RELEASE FROM THE FUEL. OTHER SIGNIFICANT NOBLE GASES WERE DETERMINED USING KNOWN RATIOS, THE MEASURED TOTAL OFFGAS HOLDUP SYSTEM DELAY TIME, AND THE KNOWN FRACTION OF THE OFFGAS $1 REAM RELEASED VIA-THE GLAND EXHAUSTER.
2. AN ISOTOPIC ANALYSIS FOR NOBLE GASES IS NORMALLY NOT POSSIBLE AT THE BUILDING VENTS. THEREFORE, FOR VENT RELE ASES, THE ISOTOPIC MIXTURE IS ASSUMED TO BE EQUAL TO THE MIXTURE DETERMINED AT THE SJAE.
3. TOTAL RELEASES REPORTED IN TABLES 1A AND 2A DO NOT INCLUDE NUCLIDES WHICH WERE BELOW MINIMUM DETECTABLE ACTIVITY (MDA). MDA VALUES ARE INCLUDED IN TABLES 18, IC, AND 28. COMPARISONS OF RELEASES TO APPLICABLE LIMITS DO NOT INCLUDE NUCLIDES WHICH WERE BELOW MDA. MAXIMUM ALLOWED I 3A VALUES ARE ESTABLISHED IN THE TECHNICAL SPECIFICATIONS.
4. INFORMATION SPECIFIED IN REGULATORY GUIDE 1.21 WHICH IS NOT APPLICABLE TO THE MONTICELLO PLANT IS INDICATED BY 'NA'.

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