ML20034F809

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TMI-1 Effluent & Offsite Dose Rept for Period Jul-Dec 1992
ML20034F809
Person / Time
Site: Crane 
Issue date: 12/31/1992
From:
GENERAL PUBLIC UTILITIES CORP.
To:
Shared Package
ML20034F808 List:
References
NUDOCS 9303050037
Download: ML20034F809 (20)
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Text

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Page 1 of 2 EXECUTIVE

SUMMARY

Three Mile Island Nuclear Station Unit 1 Effluent and Off Site Dose Report for the Period of July 1, 1992 through December 31, 1992 This report summarizes the radioactive liquid and gaseous releases (effluents) from Three Mile Island Unit 1 and the calculated maximum hypothetical radiation exposure to the public resulting from these releases.

This report covers the period of operation from July 1,

through December 31, 1992.

Radiological releases from the plant are monitored by installed plant radiation monitors which survey the plant stack for gaseous releases and liquid discharges to the Susquehanna River for liquid releases.

These monitors and associated sample analyses provide a means to accurately determine the type and quantities of radioactive materials being released to the environment.

Calculations of the maximum hypothetical dose to an individual and the total population around Three Mile Island due to radioactive releases from the plant are made utilizing environmental conditions existing at the time of the release.

Susquehanna River flow data are used to calculate the maximum hypothetical doses to an individual and the population downstream of TMI due to liquid releases.

Actual or "real-time" meteorological data from an onsite tower is used to i

determine the doses resulting from gaseous releases from the plant. The use of real-time meteorological information permits the determination of both the direction in which the release traveled and the dispersion of radioactive material in the environment.

Utilizing gaseous effluent data and real-time meteorology, the maximum hypothetical dose to any individual and to the total population within 50 miles of the plant is calculated.

Similarly, Susquehanna River flow and liquid effluent data are used to calculate a maximum hypothetical dose to an individ.ual and a population dose from liquid effluents for any shoreline exposure down to the Chesapeake Bay.

Exposure to the public from consumption of water and fish withdrawn from the Susquehanna River downstream of the plant is also calculated.

1 9303050037 930301 PDR ADOCK 05000289 R

PDR

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' age 1 of 2 Executive Summary (cont.)

Dose calculations for liquid and gaseous effluents are performed using a mathematical model which is based on the methods defined by the U.S.

Nuclear Regulatory Commission.

t The maximum hypothetical doses are conservative overestimates of the actual off site doses which are likely to occur.

For example, the dose does not take into consideration the removal of radioactive material from the river water by precipitation of insoluble salts, absorption onto river sediment, biological removal, or removal during processing by water companies prior to distribution and consumption.

Liquid discharges made during the reporting period July 1 through December 31, 1992 consisted of 494 curies of tritium, and 0.006 curies of other beta and gamma emitters, predominately Co-58, Cs-134 and Cs-137.

The quantities of effluents are similar to average semiannual l

releases from Unit 1 operations.

During the reporting period July 1 through December 31, 1992, the 1

maximum hypothetical calculated whole body dose to an individual due to i

l liquid ef fluents from Three Mile Island Unit I was about 0.034 millirem.

i The maximum hypothetical calculated dose to any organ of an individual was 0.044 millirem to the liver.

j Airborne discharges made during this same time period consisted of 0.08 i

curies of tritium, 542 curies of noble gases, and 0.01 curies of iodines and particulates.

These quantities of effluents are also similar to semiannual releases from previous Unit 1 operation, since 1985 restart.

The maximum hypothetical calculated dose to any individual from noble gases was 0.139 mrem to the skin and 0.068 mrem to the whole body.

Airborne radioiodine, tritium and particulates are calculated to produce 0.306 mrem to the thyroid of the maximum hypothetical individual.

1 The total maximum hypothetical whole body dose of 0.102 mrem, received by any individual from effluents from the Three Mile Island Nuclear Station Unit 1 during the reporting period is more than 1,000 times lower than the dose the average individual in the Three Mile Island area receives from natural background, including natural radon, during the q

~

same time period.

Natural background averages about 50 millirem whole body semiannually in the Three Mile Island area.

In addition, the average equivalent semiannual dose to the total body from natural radon is about 100 millirem.

The calculated whole body population dose from all plant releases is 4.7 8 person-rem.

This is approximately 70,000 times lower than the dose attributed to natural background radiation for the reporting period.

The doses which could have been received by the maximum hypothetical individual are each 10.3 percent or less of the annual limits established by the Nuclear Regulatory Commission in Appendix I of 10 CFR 50.

2 i

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. Attachment 2 ^

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Page 1 Of 7 EFFLUENT & WASTE DICPOSAL SEMIANNUAL REPORT SUPPLEMENTAL INFORMATION FACILITY:

TMI UNIT 1 LICENSE:

DPR 50-289 1.

REGULATORY LIMITS - - - REFEP TO TMI UNIT 1 TECHNICAL SPECIFICATIONS I

A. PISSION AND ACTIVATION GASES:

i B.

IODINES:

C.

PARTICULATES, HALF-LIVES > 8 DAYS:

t D. LIQUID EFFLUENTS:

i

2. MAXIMUM PERMISSIBLE CONCENTRATIONS - - - 10 CFR 20, APPENDIX B TABLE II PROVIDE THE MPCS USED IN DETERMINING ALLOWABLE RELEASE RATES OR CONCENTRATIONS.

i A. FISSION AND ACTIVATION GASES:

B.

IODINES:

i C. PARTICULATES, HALF-LIVES > 8 DAYS:

l D. LIQUID EFFLUENTS:

3. AVERAGE ENERGY PROVIDE THE AVERAGE ENERGY (E-BAR) OF THE RADIONUCLIDE MIITURE IN RELEASES OF FISSION AND ACTIVATION GASES, IF APPLICABLE i

E-BAR BETA =

6.13E-01 E-BAR GAMMA =

5.9BE-01 i'

E-BAR BETA AND GAMMA = 1.21E+00

4. MEASUREMENTS AND APPROIIMATIONS OF TOTAL RADIOACTIVITY f

PROVIDE THE METHODS USED TO MEASURE OR APPROIINATE THE TOTAL RADIOACTIVITY IN EFFLUENTS AND THE METHODS USED TO DETERMINE RADIONUCLIDE COMPOSITION:

j A. FISSION AND ACTIVATION GASES: HPGE SPECTROMETRY, LIQUID SCINTILLATION B.

IODINES:

HPGE SPECTROMETRY C. PARTICULATES HPGE SPECTROMETRY, GAS FLOW PROPORTIONAL, BETA SPECTROMETRY j

D. LIQUID EFFLUENTS:

HPGE SPECTROMETRY, LIQUID SCINTILLATION

5. BATCH RELEASES PROVIDE THE FOLLOWING INFORMATION RELATING TO BATCH RELEASES OF RADIOACTIVITY MATERIALS IN LIQUID AND GASEOUS EFFLUENTS.

t A. LIQUID (ALL TIMES IN MINUTES)

QUARTER 3 QUARTER 4

1. NUMBER OF BATCH RELEASES:

21 19

2. TOTAL TIME PERIOD FOR BATCH RELEASES:

11075.

8183.

3. MAXIMUM TIME PERIOD FOR A BATCH RELEASE:

1220.

960.

4. AVERAGE TIME PERIOD FOR BATCH RELEASES:

527.

431.

5. MINIMUM TIME PERIOD FOR A BATCH RELEASE:

80.

222.

I

6. AVERAGE STREAM FLOW DURING PERIODS OF RELEASE OF EFFLUENT INTO A FLOWING STREAM:

(CFM) 1.17E+06 2.09E+06 B. GASEOUS (ALL TIMES IN MINUTES)

1. NUMBER OF BATCH RELEASES:-

18 11

2. TOTAL TIME PERIOD FOR BATCH RELEASES:

9753.

7037.

3. MAXIMUM TIME PERIOD FOR A BATCH RELEASE:

830.

900.

4. AVERAGE TIME PERIOD FOR BATCH RELEASES:

542.

640.

5. MINIMUM TIME PERIOD FOR A' BATCH RELEASE:

O.

10.

5

6. ABNORMAL FM MSES l

j A. LIQUID

1. NUMBER OF RELEASES: 2. TOTAL ACTIVITY RELEASED: (CURIES)

N/A N/A B. GASEOUS

1. NUMBER OF RELEASES:

-O-2. TOTAL ACTIVITY RELEASED: (CURIES)

N/A N/A Page 2 of 7 TABLE 1A EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT (1992)

GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES UNIT QUARTER 3 QUARTER 4 EST. TOTAL ERROR, %

A.

FISSION AND ACTIVATION GASES

1. TOTAL RELEASE Ci 2.04E+02 3.38E+02 2.50E+01
2. AVG. RELEASE RATE FOR PERIOD uCi/sec 2.57E+01 4.25E+01
3. PERCENT OF TECH.

SPECIFICATION LIMIT B.

IODINES

1. TOTAL IODINE I-131 Ci 2.97E-03 1.94E-03 2.50E+01
2. AVG. RELEASE RATE FOR PERIOD uCi/sec 3.74E-04 2.44E-04
3. PERCENT OF TECH.

SPECIFICATION LIMIT C.

PARTICULATES

1. PART. WITH HALF-LIVES > 8 DAYS Ci

<1.00E-04 1.66E-05 2.50E+01

2. AVG. RELEASE RATE FOR PERIOD uCi/sec NA 2.09E-06
3. PERCENT OF TECH.

SPECIFICATION LIMIT NA

4. GROSS ALPEA RADIOACTIVITY Ci

<1.00E-11

<1.00E-11 D.

TRITIUH

1. TOTAL RELEASE Ci 8.17E-02 1.56E-03 2.50E+01
2. AVG. RELEASE RATE FOR PERIOD uC1/see 1.03E-02 1.96E-04
3. PERCENT OF TECH.

SPECIFICATION LIMIT NOTE: ALL IASS THAN VALUES (<) ARE IN uCi/ml.

  • % TECH. SPEC. LIMITS: LISTED ON DOSE

SUMMARY

TABLE.

Page 3 Of 7 I

TABLE IC EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT (1992)

GASEOUS EFFLUENTS-GROUND-LEVEL RELEASES CONTINUOUS HODE BATCH HODE NUCLIDES RELEASED UNIT QUARTER 3 QUARTER 4 QUARTER 3 QUARTER 4

1. FISSION GASES AR 41 Ci 3.23E-03 4.10E-03

<3.00E-07

<3.00E-07 KR 85H Ci 4.66E-01 1.63E+00 7.33E-06

<5.00E-08 KR 85 Ci

<8.00E-06

<8.00E-06 3.30E+00 1.09E+01 KR 87 Ci 4.44E-01 1.46E+00 5.61E 06

<8.00E-08 KR 88 Ci 9.30E-01 3.13E+00 1.41E-05

<1.00E-07 IE 131H Ci 2.68E+01 7.03E 02 1.75E+00 2.69E+00 IE 133H Ci 3.67E-01 1.23E+00 4.93E-01 7.99E-01 IE 133 Ci 6.09E+01 1.22E+02 1.05E+02 1.78E+02 IE 135H Ci 3.94E-01 1.02E+00 5.22E-03

<5.00E-07

- _ _.... _ _ _ _ - - _ _ = _ =

IE 135 C1 2.95E+00 1.43E+01 1.00E-02 1.03E-02 IE 138 Ci 2.69E-01 7.92E-01 2.62E-06

<3.00E-07 TOTAL FOR PERIOD Ci 9.35E+01 1.45E+02 1.11E+02 1.92E+02 2.

IODINES i

I 131 Ci 2.97E_03 1.94E-03 5.08E-06

<1.00E-08 I 133 C1 2.82E-03 3.36E-03 2.49E-06

<1.00E-08 I 135 Ci

<1.00E-10

<1.00Z-10

<1.00E-10

<1.00E-10 TOTAL FOR PERIOD Ci 5.79E-03 5.31E-03 7.57E-06 0.00E+00 I

1

3. PARTICULATES CO 58 Ci

<1.00E-12 1.66E-05

<1.00E-12

<1.00E_12 CS 134 Ci

<1.00E_11

<1.00E-11

<1.00E-08

<1.00E-08 CS 137 Ci

<1.00E-11

<1.00E-11

<1.00E-08

<1.00E-OB i

NOTE: ALL LESS THAN VALUES (<) ARE IN uCi/ml.

m

~ Attachment-2

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Page 4 Of 7 l

i TABLE 2A i

EFFLUENT AND NASTE DISPOSAL SEMIANNUAL REPORT (1992) l LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES l

UNIT QUARTER 3 QUARTER 4 EST. TOTAL ERROR, %

f A. FISSION AND ACTIVATION PRODUCTS

{

P

1. TOTAL RELEASE (EE.

{

B-3, OASES, ALPHA)

Ci 5.11E-03 9.64E-04 2.50E+01

2. AVG. DILUTED CONC. DURING PERIOD uCi/ml 3.77E-10 8.79E-11 j
3. PERCENT OF i

APPLICABLE LIMIT f

B. TRITIUM i

1. TOTAL RELEASE Ci 2.49E+02 2.45E+02 2.50E+01
2. AVG. DILUTED I

CONC. DURING PERIOD uCi/ml 1.84E-05 2.23E-05 I

t

3. PERCENT OF APPLICABLE LIMIT I

i C. DISSOLVED AND ENTRAINED GASES

~!

I

1. TOTAL RELEASE Ci 2.13E-02 3.09E-02 2.50E+01 l
2. AVG. DILUTED

-l CONC. DURING PERIOD uci/ml 1.57E-09 2.82E-09

3. PERCENT OF l

APPLICABLE LIMIT l

D. GROSS ALPEA RADIOACTIVITY l

1. TOTAL RELRASE Ci

<1.OOE-07

<1.OOE-07 2.50E+01 l

l J

4 E. VOL. OF WASTE RELEASED (NO DIL.)

LITERS 7.97E+06 6.94E+06 1.OOE+01 1

F. VOL. OF DILUTION WATER IN PERIOD LITERS 1.35E+10 1.10E+10 1.OOE+01 NOTE: ALL LESS TRAN VALUES (<) ARE IN uCi/al.

% TECE. SPEC. LIMITS: LISTED ON DOSE

SUMMARY

TABLE.

i 1

Page-5 of 7 TABLE 23 EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT (1992)

I LIQUID EFFLUENTS CONTINUOUS MODE BATCH MODE i

NUCLIDES RELEASED UNIT QUARTER 3 QUARTER 4 QUARTER-3 QUARTER 4

{i CR 51 Ci

<5.OOE-07

<5.00E-07

<5.OOE 07

<5.00E :

i MN 54 Ci 8.02E 08

<5.00E.07 8.85E-06

<5.00E 07 i

j FE 55 Ci

<1.OOE-06

<1.00E.06 3.14E 04

<1.00E-06 i

FE 59 Ci

<5.OOE-07

<5.00E-07

<5.00E-07

<5.00E-07

- ___= =__.

CO 57 Ci

<5.OOE-07

<5.00E-07 5.59E-06

<5.00E-07 i

_~_...

CO 58 Ci 1.66E-06

<5.OOE-07 9.80E-04 2.86E-05

..====-- _.

CO 60 Ci

_______-07 2.50E

<5.00E-07 1.11E-04

<5.OOE-07 ZN 65 Ci

<5.OOE 07

<5.00E-07

<5.OOE-07

<5.00E-07 j

SR 89 Ci

<5.00E.OB

<5.00E-08

<5.OOE-08

<5.00E-08 f

a SR 90 Ci 6.86E.06 2.61E-05 8.14E.06

<5.00E-08 i

s 3R 95 Ci

<5.00E.07

<5.OOE-07

<5.OOE-07

<5.OOE-07 l

NB 95 Ci

<5.00E-07

<5.OOE-07

<5.00E-07

<5.OOE-07 l

HO 99 Ci

<5.00E-07

<5.OOE-07

<5.OOE.07

<5.OOE-07 i

TC 99M Ci

<5.OOE-07

<5.OOE 07

<5.OOE.07

<5.00E 07 i

f AG 110M Ci

<5.OOE-07

<5.OOE.07 1.46E-04 6.96E.07 SB 125 Ci

<5.00E-07

<5.00E-07 2.56E-05

<5.00E-07 l

I 131 Ci 2.17E-03 2.36E.04 2.51E-05 1.10E.05 l

CS 134 Ci 7.87E-05 1.94E-04 2.94E-04 1.19E-05 CS 137 C1 2.92E.04 4.23E 04 6.40E-04 3.28E-05 t

BA 140 Ci

<5.OOE-07

<5.00E.07

<5.OOE-07

<5.OOE-07

)

d LA 140 Ci

<5.OOE-07

<5.00E-07

<5.00E-07

<5.OOE-07 t

CE 141 Ci

<5.00E 07

<5.OOE-07

<5.OOE.07

<5.00E-07 l

W 187 Ci

<5.00E-07

<5.00E.07 2.06E-06

<5.00E-07 l

TOTAL FOR PERIOD C1 2.55E-03 8.79E-04 2.56E.03 8.49E-05 i

IE 131M Ci

<1.00E-04

<1.OOE.04 1.04E-04 1.67E-04 IE 133M Ci

<1.OOE-04

<1.00E-04 1.39E-04 1.31E-04

-==

IE 133 Ci

<1.OOE-04

<1.OOE-04 2.10E.02 3.06E-02 IE 135 Ci

<1.00E-04

<1.OOE.04 7.16E-06 6.96E-05 NOTE: ALL LESS THAN VALUES (<) ARE IN uC1/al.-

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Page 6 of 7 t

TMI-1 7/1/92 to 12/31/92 TA3LE 3A EFFLLEST ASD k'ASTE DISPOSAL SEMIRC;'JAL REPORT SOLID '='ASTE AND IERADIATED FL'EL SHIPMENTS I

A.

Solid waste shipped off-site for burial or disposal (not irradiated fuel) i j

1. Type of vaste 6m h

T TOTAL tyII g

5 pent resins, filter slu ges, m#

03 4 Od a.

evaporator bottons, etc.

Ci 53.8 Ci St

{

b. Dry co=pressible waste, conta=1nated

='

368.7 m3, f

eeudoment, etc.

c4 2.35 CT 57 Irranatec components, control m'

c.

j rods. etc.

N/A M/A Ci

d. Other (describe) 33 i

Ci N/A IJ/A

[

2. Estimate of major nuclide r

ce=oosition (bv type of waste) a.

Cs137 62.2 %

Csl34 g

23.96-Ni63

)

6.42-l Feob 1.30 ;

i b.

CoS8

?g. 01 ?

Cs137 25 97*

Cr51 14.4 :

)

Ao110m 6.77:

[

j Cel44 5.57%

C.

]

I i

j i

f 4

d.

2

~

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3. Solid '4aste Disposition

';eber of Shi =ents Mode of Transoortation Destinatien See Attached l

t 3.

Irradiated Fuel Ship =ents (Disposition) t i

i i

  • umoer of Shipments Mode of Transportation Destination I

N!b I

J I

f j

-B-r i

Page 7 of 7 TMl-1 Semi-Annual Report i

7/1/92 to 12/31/92 A.3.a Number of Shipments Mode Destination Two (2) Shipments Tractor-Flatbed U.S. Ecology - Richland, WA Two (2) Shipments Tractor-Flatbed CNSI - Barnwell, SC One (1) Shipment Tractor-Cask (14/190m)

CNSI - Barnwell, SC One (1) Shipment Tractor-Cask CNSI - Barnwell, SC (HN100 Series 3)

  • Four (4) Shipments Tractor-Flatbed SEG - Oak Ridge, TN One (1) Shipment Tractor-Closed van U.S. Ecology - Richland, WA A.3.b Number of Shipments Mode Destination
  • Seven (7) Shipments Tractor-Flatbed Alaron Corp. - Wampum, PA
  • Four (4) Shipments Tractor-Flatbed SEG - Oak Ridge, TN tao (2) Shipments Tractor-Flatbed U.S. Ecology - Richland, WA Two (2) Shipments Tractor-Flatbed CNSI - Barnwell, SC One (1) Shipment Tractor-Cask (14/190m)

CNSI - Barnwell, SC A.1.a - Waste Shipped as Follows:

Nine (9) - Steel Liners at 178 ft' each - solidified with cement.

  • Four (4) - Steel Liners at 170 Ft' each.
  • Two (2) - Steel Liners at 196 Ft' each.

One (1) - Hi a Integrity Containers at 135.8 Ft'.

9 Eighteen (18) - Steel Drums at 7.5 Ft' each - solidified with Aquaset.

A.3.a - Waste Shipped as Follows:

  • Five (5) - Steel Boxes at 1356 ft each.
  • 0ne (1) - Steel Box at 1360 ft'.
  • 0ne (1) - Steel Box at 1274 Ft'.
  • 0ne (1) - Steel Box at 77 Ft'.
  • 0ne (1) - Steel Box at 46.5 Ft'.
  • Three (3) - Steel Boxes at 1040 Ft' each.
  • 0ne (1) - Steel Box at 92 Ft'.

Five (5) - Steel Boxes at 44 Ft' each.

Seven (7) - Steel Drums at 7.5 Ft' each.

  • Material Shipped to Waste Processor for Volume Reduction.

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Page 1 of 2 TABLE 1 UNIT 1 Second Half 1992 Dose Report

SUMMARY

OF MAXIMUM INDIVIDUAL DOSES FOR UNIT 2 FROM July 1.

1992 through December 31, 1992 Estimated Location

% of Applicable Dose Age Dist Dir Applicable Limits (mrem)

Effluent Organ (mrem)

Group (m) (toward)

Limit 10 CFR 50 Appendix I Quarterly Annual Ouarter_lv Annual (1) Liquid Total Body 3.35E-2 Adult Receptor 1 2.23E0 1.12E0 1.5 3.0 (2) Liquid Liver 4.44E-2 Adult Receptor 1 8.88E-1 4.44E-1 5.0 10.0 (3) Noble Gas Air Dose 1.03E0 160 WNW 2.06El 1.03E1 5.0 10.0 (gamma-mrad)

(4) Noble Gas Air Dose 1.14E0 160 WNW 1.14E1 5.70E0 10.0 20.0 (beta-mrad)

(5) Noble Gas Total Body 6.83E-2 All 560 W

(6) Noble Gas Skin 1.39E-1 All 560 W

(7) Iodine &

Thyroid 3.06E-1 Infant 580 WNW 4.08E0 2.04E0 7.5 15.0 Particulates

SUMMARY

OF MAXIMUM POPULATION DOSES FOR UNIT 1 FROM July 1.

1992 through December 31. 1992 Estimated Applicable Population Dose Effluent Orcan foerson-rem)

(8) Liquid Total Body 4.62E0 (9) Liquid Thyroid 5.20E0 (10) Gaseous Total Body 1.63E-1 (11) Gaseous Thyroid 1.78E0

_,.4-

, - -.. - ~. ~.

e..

m..

, =. - ~,. -........, - -, -. - -,.. ~,. -. -,..,... _ _..

+,...,..

-e....

. - ~....... -. -

...-..........e m.

Page 2 Of 2 I

TABLE 2 UNIT 1 Annual 1992 Dose Report

SUMMARY

OF MAXIMUM INDIVIDUAL DOSES FOR UNIT 2 FROM January 1.

1992 through December 31, 1992 Estimated Location

% of Applicable Dose Age Dist Dir Applicable Limits (mrem)

Effluent Orcan (mrem)

Group (m) (toward)

Limit 10 CFR 50 Appendix I Quarterly Annual Ouarterly Annual (1) Liquid Total Body 9.59E-2 Adult Receptor 1 3.20E0 1.5 3.0 (2) Liquid Liver 1.34E-1 Teen Receptor 1 1.34E0 5.0 10.0 (3) Noble Gas Air Dose 1.03E0 160 WNW 1.03E1 5.0 10.0 (gamma-mrad)

(4) Noble Gas Air Dose 1.14E0 160 WNW 5.70E0 10.0 20.0 (beta-mrad)

(5) Noble Gas Total Body 6.85E-2 All 560 W

(6) Noble Gas Skin 1.39E-1 All 560 W

(7) Iodine &

Thyroid 3.06E-1 Infant 580 WNW 2.04E0 7.5 15.0 Particulates

SUMMARY

OF MAXIMUM POPULATION DOSES FOR UNIT 1 FROM January 1.

1992 through December 31. 1992 Estimated Applicable Population Dose Effluent Orcan foerson-rem)

(8) Liquid Total Body 5.21E0 (9)

Liquid Thyroid 5.76E0 (10) Gascous Total Body 1.74E-1 (11) Gaseous Thyroid 1.80E0 Annual summations will not equal the sum of each periodic report due to receptor location changes and interpolation results.

A

,.. - -.. - -...... ~. -, - - -. -.

-,.-,s.---.-...--..---.~.,e,-~.e-.,.,.,..w..

---v.--e w~+-

r-.,,--..~w

-..-we-.

.--.--r.-.e

.w

...c.-

4w.%-..

.,.---,----,v---w,

Page 1 of 2 l

INTERPRETATION OF DOSE

SUMMARY

TABLE The Dose Summary Table presents the maximum hypothetical doses to an individual and the general population resulting from the release of gaseous and liquid effluents from TMI-1 during the second half reporting period of' "'

A.

Liauid (Individual)

The first two lines present the maximum hypothetical dose to an individual.

Presentsd are the whole body and critical organ doses. Calculations are performed on the four age groups and eight organs recommended in Regulatory Guide 1.109.

The pathways considered for TMI are the consumption of drinking water and fish and standing on the shoreline j

influenced by TMI effluents. The latter two pathways are considered to be the primary recreational activities associated with the Susquehannu River in j

the vicinity of TML The " receptor" would be that individual who consumes t

water from the Susquehanna River and fish residing in the plant discharge, l

while occupying an area of shoreline influ nced by the plant discharge.

~

After calculating the doses to all age groups for all eight organs resulting i

from the three pathways described above, the Dose Summary Table presents the maximum whole body dose and affected age group along with the organ i

t and associated age group that rt eived the largest dose.

For the second half of 1992 the calculated maximum whole body dose received by anyone would have been 3.35E-2 mrem to an adult. Similarly, i

the maximum organ dose would have been 4.44E-2 mrem to the liver of an adult.

i B.

Gaseous (Individual)

There are six major pathways considered in the dose calculations for gaseous effluents. These are: (1) plume exposure (2) inhalation, consumption of (3) cow milk, (4) vegetables and fruits, (5) meat, and (6) standing on contaminated ground.

Real-time meteorology was used in all dose calculations for gaseous effluents.

Lines 3 and 4 present the maximum plume exposure at or beyond the site boundary. The notation of" air dose"is interpreted to mean that tbse doses are not to an individual, but are considered to be the maximum doses that would have occurred at or beyond the site boundary. The %5e Summary Table presents the distance in meters to the location in the affected sector (compass point) where the theoretical maximum plume exposures occurred.

i Lines 5 and 6 present the doses which could actually be received by an

)

individual from the noble gas effluents for the second half of 1992..The calculated maximum whole body dose received by anyone from noble gases would have been 6.83E-2 mrem and the maximum dose tc the skin would have been 1.39E-1 mrem.

l l

Page 2 of 2 ~

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The iodines and particulates section described in line 7 -represents the maximum expcsed organ due to iodines, particulates and tritium. The dose presented in this section again reflects the maximum exposed organ for the appropriate age group.

The second half 1992 iodines and particulates would have resulted in a maximum dose of 3.06E-1 mrem to the thyroid of an infant residing 580 meters from the site in the WNW sector. No other organ of any age group would have received a greater dose.

i C.

Liouid and Gaseous (Pooulation)

Lines 8 - 11 present the person-rem doses resulting from the liquid and gaseous effluents. These doses are summed over all pathways and the affected populations. The person-rem doses from liquid effluents are based upon the population encompassed within the region from the TMI outfall extending down to the Chesapeake Bay. The person-rem doses from gaseous effluents are based upon the 1980 population and consider the population out.

to a distance of 50 miles around TML Population doses are summed over all distances and sectors to give an aggregate dose.

Based upon the calculations performed for the second half of 1992, liquid effluents resulted in a whole body population dose of 4.62E0 person-rem.

i The maximum critical organ population dose was 5.20E0 person-rem to the thyroid. Gaseous effluents resulted in a whole body population dose of 1.63E-1 person-rem.

The maximum organ population dose was 1.78E0 person-rem to the thyroid.

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Page 1 of 9 l

[

THREE MILE ISLAND METEROLOGICAL DATA JOINT FREQUENCY TABLES l

VERSION: 93.1 PRINTED 01-27-1993 l

HOURS AT EACH WIND SPEED AND DIRECTION l

PERIOD OF RECORD 92010100 TO 92123123 STABILITY CLASS A f

WIND SPEED l

SECTOR WINDS TO FROM 1-3 4-7 8-12 13-18 19-24

>24 TOTAL N

S 2

11 11 0

0 0

24 NNE SSW 9

56 46 5

1 0

117 NE SW 17 72 18 3

2 0

112 t

ENE WSW 32 23 6

3 0

0 64 E

W 22 25 21 15 1

0 84 lj ESE WNW 23 43 29 18 2

0 115 t

SE NW 57 102 94 46 7

4 310 I

SSE NNW 39 101 50 8

4 1

203 S

N 18 33 15 1

1 0

68 i

SSW NNE 4

5 2

0 0

0 11 SW NE 4

10 0

0 0

0 14 WSW ENE 4

13 3

0 0

0 20 W

E 7

19 6

2 0

0 34 i

WNW ESE 4

22-26 1

0 0

53 i

NW SE 4

17 12 0

0 0

33 l

NNW SSE 2

12 7

0 0

0 21 TOTAL 248 564 346 102 18 5

1283 J

Page 2 of 9

.l I

THREE MILE ISLAND METEROLOGICAL DATA JOINT FREQUENCY TABLES

-l VERSION: 93.1 PRINTED 01-27-1993 t

HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD 92010100 TO 92123123 STABILITY CLASS B WIND SPEED SECTOR WINDS TO FROM 1-3 4-7 B-12 13-18 19-24

>24 TOTAL N

S 3

6 10 0

0 0

19 i

NNE SSW 4

16 13 4

0 0

37

'j NE SW 7

11 10 1

0 0

29 ENE WSW 6

4 1

2 0

0

-13 E

W 6

5 9

12 0

0 32 ESE WNW 6

7 13 11 9

2 48 i

SE NW 8

10 24 27 12 7

88 j

SSE NNW 9

18 14 10 0

0 51 S

N 9

7 6

0 1

0 23 i

SSW NNE 5

5 0

0 0

0 10 SW NE O

2 2

1 0

0 5

i I

WSW ENE 2

7 9

1 0

0 19 W

E 1

15 12 5

0 0

33 WNW ESE 4

21 20 3

0 0

48 l

NW SE 2

11 5

.0 0

0 18

{

NNW SSE 1

6 7

0 0

0 14 I

TOTAL 73 151 155 77 22 9

487 i

f i

J

)

4 I

1

z.

Page 3 of 9 THREE MILE ISLAND METEROLOGICAL DATA i

4 JOINT FREQUENCY TABLES VERSION: 93.1 PRINTED 01-27-1993 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD 92010100 TO 92123123 STABILITY CLASS C WIND SPEED SECTOR WINDS i

TO FROM 1-3 4-7 B-12 13-18 19-24

>24 TOTAL N

S 2

6 2

0 0

0 10 t

c NNE SSW 0

11 15 0

0 0

26 NE SW 3

6 0

0 0

0 9

ENE WSW 1

3 4

0 0

0 8

E W

8 4

13 5

0 0

30 ESE WNW 6

7 9

9 2

1 34 i

i SE NW 6

7 16 19

'7 0

55 SSE NNW 4

8 4

2 2

0 20 4

)

S N

4 3

2 3

0 0

12 SSW NNE 2

6 0

1 0

0 9

SW NE 2

10 0

0 0

0 12 l

f WSW ENE 3

12 3

0 0

0 18 I

W E

1 13 19 0

0 0

33

)

9 WNW ESE 2

10 17 3

0 0

32 l

l NW SE 2

4 10 2

0 0

18 f

Nh"4 SSE 1

5 4

1 0

0 11 l'

TOTAL 47 115 118 45 11 1

337 e

s l

i i

Page 4 of 9-THREE MILE ISLAND METEROLOGICAL DATA JOINT FREQUENCY TABLES VERSION: 93.1' PRINTED 01-27-1993 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD 92010100 TO 92123123 s

STABILITY CLASS D

-)

WIND SPEED.

l SECTOR WINDS TO FROM 1-3 4-7 8-12 13-18 19-24

>24 TOTAL i

N S

22 136 41 5

0 0

204 l

t NNE SSW 21 106 48 8

0 0

183 j

NE SW 33 71 19 4

2 0

129 l

ENE WSW 30 56 14 4

1 0

105 i

E W

39 86 64 36 9

1 235 ESE WNW 29 64 187 93 19 2

394 l

t f

SE NW 34 57 160 143 31 1

426 i

SSE NNW 22 71 39 44 6

0 182

{

4 S

N 27 55 19 6

0 0

107 i

SSW NNE 34 54 8

2 0

0 98 I

4

~

SW NE 35 100 12 9

1 0

157 WSW ENE 37 75 21 5

3 0

141 l

l W

E 25 127 126 11 5

1 295 l

WNW ESE 30 103 111 6

0 0

250 l

l NW SE 31 80 37 4

1 0

153-i i

NNW SSE 24 67 26 7

0 0

124' TOTAL 473 1308 932 387 78 5

3183 t

.1 2

1 j

l I

-. I

' Attachment 5

~.

Page 5 of 9

~

THREE MILE ISLAND METEROLOGICAL DATA JOINT FREQUENCY TABLES l

VERSION: 93.1 PRINTED 01-27-1993

+

l HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD 92010100. TO 92123123 STABILITY CLASS E

{

WIND SPEED SECTOR WINDS TO FROM 1-3 4-7 8-12 13-18 19-24

>24 TOTAL i

N S

34 46 7

0 0

0 87 i

NNE SSW 47 97 17 0

0 0

161 i

NE SW 50 62 13 3

1 0

129 ENE WSW 43 66 17 4

0 0-130 E

W 58 70 25 3

1 1

158

[

ESE VC&7 59 80 46 6

0 0

191 e

SE NW 70 48 65 29 11 2

225

]

SSE NNW 76 90 25 30 10 1

232 S

N 60 142 18 4

0 0

224 SSW NNE 32 45 5

0 0

0 82 SW NE 38 29 4

0 0

0 71 f

~

WSW ENE 28 38 2

'O O

O 68 I

W E

52 66 21 1

0 2

142-f WNW ESE 58 52 26 0

0 0

136 NW SE 41 20 4

0 0

0 65 t

NNW SSE 23 33 8

1 0

0 65

.i TOTAL 769 984 303 81 23 6

2166 I

f i

i t

i i

l Page 6 of 9 i

THREE MILE ISLAND METEROLOGICAL DATA JOINT FREQUENCY TABLES VERSION: 93.1 PRINTED 01-27-1993 HOURS AT EACH WIND SPEED AND DIRECTION i

PERIOD OF RECORD 92010100 TO 92123123 l

STABILITY CLASS F i

l' WIND SPEED 2

SECTOR WINDS TO FROM 1-3 4-7 8-12 13-18 19-24

>24 TOTAL i

N S

37 7

1 0

0 0

45 i ;

4

'i{

NNE SSW 38 20 0

0 0

0 58 I

NE SW 54 14 1

1 0

0 70 i

l ENE WSW 50 18 0

0 0

0 68 E

W 69 21 2

1 1

0 94

,l ESE WNW 46 19 1

0 0

0 66 l

SE NW 40 23 2

0 0

0 65 SSE NNW 35 45 1

0 0

0 81 l

ti S

N 47 33 2

U 0

0 82 i

SSW NNE 24 6

0 0

0 0

30 I

i SW NE 20 5

0 0

0 0

25 i

WSW ENE 19 10 1

0 0

0 30 i'

W E

44 14 0

0 0

1 59 l

WNW ESE 57 16 1

0 0

0 74 l

NW SE 37 3

0 0

0 0

40 i

NNW SSE 32 4

0 0

0 0

36 l

.i TOTAL 649 258 12 2

1 1

923 l

i

Page 7 of 9 THREE MILE ISLAND METEROLOGICAL DATA JOINT FREQUENCY TABLES

{

VERSION: 93.1 PRINTED 01-27-1993 i

i HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD 92010100 TO 92123123 i

STABILITY CLASS G WIND SPEED i

SECTOR WINDS TO FROM 1-3 4-7 8-12 13-18 19-24

>24 TOTAL l

N S

18 5

0 0

0 0

23 NNE SSW 31 16 0

0 0

0 47 NE SW 27 6

0 0

0 0

33 ENE WSW 14 6

0 0

0 0

20 l

E W

18 13 1

1 0

0 33 ESE WNW 16 9

0 0

0 0

25 l

SE IM 10 9

0 0

0 0

19 SSE NNW 7

13 2

0 0

0 22 S

N 10 4

0 0

0 0

14 1

SSW NNE 7

1 0

0 0

0 8

i SW NE 8

2 0

0 0

0

-10 WSW ENE 10 10 0

0 0

0 20 W

E 16 15 0

0 0

0 31 f

i WNW ESE 26 3

0 0

0 0

29 IN SE 13 0

0 0

0 0

19 NNW SSE 15 0

0 0

0 0

15 TOTAL 252 112 3

1 0

0 368 i

i 1:

?

)

I Page 8 of 9 THREE MILE ISLAND METEROLOGICAL DATA JOINT FREQUENCY TABLES VERSION: 93.1 FRINTED 01-27-1993 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECOFW 92010100 TO 92123123 STABILITY CLASS ALL WIND SPEED SECTOR WINDS TO FROM 1-3 4-7 8-12 13-18 19-24

>24 TOTAL N

S 118 217 72 5

0 0

412 NNE SSW 150 322 139 17 1

0 629 NE SW 191 242 61 12 5

0 511 ENE WSW 176 176 42 13 1

0 408 E

W 220 224 135 73 12 2

666 ESE WNW 185 229 285 137 32 5

873

)

1 SE NW 225 256 361 264 68 14 1188 SSE NNW 192 346 135 94 22 2

791 S

N 175 277 62 14 2

0 530 SSW NNE 108 122 15 3

0 0

248 SW NE 107 158 18 10 1

0 294 WSW ENE 103 165 39 6

3 0

316 l

W E

146 269 184 19 5

4 627 WNW ESE 181 227 201 13 0

0 622 NW SE 136 135 68 6

1 0

346 i

NNW SSE 98 127 52 9

0 0

286 TOTAL 2511 3492 1869 695 153 27 8747 Hours of Missing / Invalid Data:

37

-l

Page 9 of 9 o

THREE MILE ISLAND METEROLOGICAL DATA WIND ROSE TABLE.

~

VERSION: 93.1 PRINTED 01-27-1993 i

P FOR THE PERIOD 92010100 TO 92123123 l

SECTOR

<3.5 MPH 3.5 TO 7.5 7.5 TO 12.5

>12.5 MPH TOTAL

-N 0.0134 0.0247 0.0082 0.0006 0.0469 i

NNE 0.0171 0.0367 0.0158 0.0020 10.0716 NE 0.0217 0.0276 0.0069 0.0019

-0.0582 ENE 0-.0200 0.0200 0.0048 0.0016 0.0464 i

E 0.0250 0.0255 0.0154 0.0099 0.0752 ESE 0.0211 0.0261 0.0324 0.0198 0.0994 SE 0.0256 0.0291 0.0411 0.0394 0.1352 i

SSE 0.0219 0.0394 0.0154 0.0134 0.0901 4

]-

S 0.0199' O.0315 0.0071 0.0018 0.0603 i

SSW 0.0123 0.0139 0.0017 0.0003 0.0282 SW 0.0122 0.0180 0.0020 0.0013 0.0335 l

l WSW 0.0117 0.0188 0.0044 0.0010 0.0360 W

0.0166 0.0306 0.0209 0.0032 0.0714 WNW 0.0206 0.0258 0.0229 0.0015 0.0708 i

NW 0.0155 0.0154 0.0077 0.0008 0.0394 l

NNW 0.0112 0.0145 0.0059 0.0010 0.0326 j

FRACTION OF MISSING / INVALID DATA :

0.0042 i

l i

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