ML20235W816

Second Half 1988 Semiannual Effluent & Release Rept for TMI-1

ML20235W816
Person / Time
Site:	Three Mile Island
Issue date:	12/31/1988
From:	Hukill H GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
C311-89-2021, NUDOCS 8903130206
Download: ML20235W816 (19)

Text

o

. .. . J EXECUTIVE

SUMMARY

Three Mile Island Nuclear Station Unit 1 Effluent and Offsite Dose Report for the Period of July 1,1988 to December 31, 1988 This report summarizu 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 to December 31, 1988.

Radiological releases from the plant are monitored by installed plant monitors sampling the. plant stack for gaseous releases and liquid monitors for discharges to the Susquehanna River. These monitors and sample analyses provide a means for accurate determination of 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 that existed 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 determine the doses resulting from gaseous releases from tne plant. The use of real-time meteorological information permits the determination of 'voth 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, Susqueharna River flow and liquid effluent data are used to calculate a maximum hypothetical dose to an individual 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 Exposure to the public from consumption of water and fish withdrawn from the Susquehanna River downstream of the plant is also calculated.

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.

The maximum hypothetical doses are conservative overestimates of the actual offsite 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 i and consumption.

I s

8903130206 881231 PDR ADOCK 05000289 R PDC \ki l l L___ _ _ _ _ _ _ _ _ _ __- -

1.iquid discharges made during the reporting period July 1 to December 31, 1988 consisted of 90 curies of tritium, 0.008 curies of noble gases (predominantly Xe-133), and 0.034 curies of other beta and gamma emitters, predominantly Co-58. The quantities of effluents are similar to average semi-annual releases from previous Unit 1 operations.

During~ the reporting period July 1 to December 31, 1988, the maximum hypothetical calculated whole body dose to an individual due to liquid effluents from Three-Mile Island Unit 1 was 0.06 mrem. The maximum hypothetical calculated dose to any organ of an individual was 0.09 mrem to the liver.

Airborne discharges made during this same time period consisted of 1.8 curies-of tritium, 944 curies of noble gases, and 0.00009 curies of iodines and particulate. These releases are less than average semi-annual releases from previous Unit 1 operation.

The maximum hypothetical calculated dose to any individual from noble gases-was 0.013 mrem to the skin and 0.0048 mrem to the whole body. Airborne iodine and particulate are calculated to produce 0.0037. mrem to the thyroid of the maximum hypothetical individual.

The total maximum hypothetical whole body dose of 0.067 mrem, received by any individual from effluents from TMI-1 for the reporting period is '750 times lower than the doses the average individual in the area of TMI-1 receives from natural background during the same time period. Natural background averages about 50 mrem whole body semi-annually in the TMI-1 area. In addition, average equivalent dose to the total body from natural radon for the same period is about 100 mrem. The calculated total whole body population dose from all plant releases is 2.4 person-rem. This is 46,000 times lower than the dose attributed to natural background radiation for the reporting period.

The doses which could be received by the maximum hypothetical individual are each less than 2% of the annual limits established by the Nuclear Regulatory Commission in Appendix I of 10 CFR 50.

I I

4 4

_ _ _ _ _ _ _ . h

'TABLEfA" u .-

ASEh3hF h k i__. . ____.. . _ _ _ _ _ . _.i i e i  :- I

! UNIT! QUARTER 3iQUARTER4 i EITTOTAL!

!  !  !  ! ERROR I !

A. FIIIION AMD ACTIVATION GASEI

_ ..__. . ____ __ .______i li .LTOTAL RELEAIE 1  ! C1 ! 1.89E+91 ! 9.25E+92 ! 2.50E+0! ___ i

!2. AVG.RELEAIERATE!  !  !'  !'

! FOR PERIOD !UCI/! ! 2.3BE+00 ! 1.16E+021 !

i__. __ _____. _ ._ i

!3.PERCENTOFTECH.!' ' '! i

! SPECIFICATION LIMIT! I  ! s  ! a f 3.________._______'..__..__._!

B..-10 DINES

_ .__ . _ _ . __._ _ .__ __.i

!i. TOTAL 10 DINE-  !-  !  !  !  !

!. 1131  ! CI ! 1.34E-06 ! 5.99E-95 ! 2.59E+0i !

i_._____.___....___.._____....____i '

!2. AVG.RELEAIERATE! ' i '

'!FORPERIOD !UCI/I ! 1.69E 97 i 7.53E-66 i___.__________ .._ _____________...____ ____'!.

!3.PERCENTOFTECH.!  ! .  !  !

! SPECIFICATION LIMIT! %  ! #  ! s  !

C. PARTICULATE li.PART.WITHHALF-!  !  !  !  !

! LIVES ) 8 DAYI._________ .___.____.CI _ _. ..'! 1.28E 96 ! (1.90E-94i ! 2.50E+01 !

!2. AVG.RELEASERATE!  !  !

! FOR PERIOD !UC1/! ! 1.62E-07 ! NA  !

!3. PERCENT OF TECH. !  !  !  !

l  ! SPECIFICATION LIMIT! I ! #  ! NA  !

• bfbAChiY !CI!(1.90E-11 (1.00E-11!

i-  ! ... . . __..__...__ .__!

l

). TRITIUM i_ .. _ .

l

31. TOTAL RELEAJE i

! CI ! 7.2tE-01 ! 1.06E+99 ! 2.50E+0i  !

!2. AVG. RELEAIE RATE!  !  !  !

I

'.FOR FERIODi ..___ .__....____....

.. . __!UC1/I ! 9.07E-02 -i ! 1.34E-01 !

!3.PERCENTOFTECH.!  !  !  !

! SPECIFICATION LIMIT! !  ! #  ! #  !

3___ . ...

r NOTE: ALL LESI THAN YALUES (O ARE IN UCI/ML.

• % TECH. IPEC. LIMITI: LISTED ON DOSE SUMMART TABLE.

I l

~

4 LTABLEtC ';

i .

EhGYUY-NY EY Y 1

i i

CONTINU0VJMODE BATCHN0E'

._________._.i l

..i i. . s. .. - i. - i. . . i. i

!NUCLIDE!RELEAIED! UNIT' QUARTER 3! QUARTER 4!GUARTER3' QUARTER 4' i i i i -i i-

. l ___.._ . .:.  : _ * ._ _ '

.. I 1.=FIIIIONGAIEI

.! KR 85

_ _ _ . . - _________...! CI ! (8.99E-H ! (8.90E-96. !__.3.92E-91 ___ .____.  ! (8.ME-06 i  ! i

!- KR 85M L -! CI ! (5.99E-98 ! 1.17E-93 ! 8.16E-93 ! 6.34E41 ! l

! KR 87  ! CI ! (8.99E-98 ! 8.56E45 ! 4.7tE44 ! (8.99E-98 ! l i_- _ ____i.

~ t

.i KR 88 i___ ____ 82 CI ! (1.99E-97 ! 7.49E_94! 6.79E43 ! 2.79E-92 !

H  !  ! CI ! 2.16E-93 ! 3.76E+91 ! 1.66E+91 ! 8.54E+02!

i __-XE 133 .______. __ ._ .__i i________..'_____

! :XE135 .! CI ! 1.43E43 ! 6.69E-92 ! 1.59E+99! 1.81E+91!i

! XE 135M C1 -! (5.99E-97 ! 7.19E-95 ! (5.99E-97 ! (5.99E-97 !

! XE 138 i______ _ .  ! C1 ! (3.00E-97 ! (3.90E-97 ! (3.99E47 ! (3.99E-97 !.

'!i__.._XE133M _  ! CI ! (2.99E-97 ! (2.99E-97 ! 5.99E42 ! . 9.21E+99 !.

i XE131M  ! CI ! (3.99E-97 ! (3.99E-97 ! 1.11E-91 ! 4.28E+99 !

1. .___ ___ .. ___..__. ____. .

! AR 41

! CI ! (3.ME-97 ! (3.ME47 ! - 2.29E41 ! 6.38E-91 !

i ....__ ....___ ____ .__ __.. . ...____i i

1. TOTAL FOR PERIOD! 3.58E43 CI  !  ! 3.76E+91 ! 1.89E+91 ! 8.87E+02 i

.i

2. 10 DINES i .. . ... . ......___. _.___ .. ... ... ..i 131  ! CI ! 5.96E47 ! 5.65E45 ! 7.45E-97 ! 3.35E-96 !

!'_____I

' 132  ! CI ! (1.99E-19 ! (1.90E 10 ! (1.ME48 ! (1.90E 1 ..I ___ ..________ .____... ....___.____ .... __.. _-98.i!

! I 133  ! CI ! 1.74E-96 ! 2.55E45 ! 4.12E-97 ! 3.81E-97 !

.!! TOTAL . ___. FOR PERIOD ! CI ! 2.33E_96 ! 8.29E-95 ! 1.16E-06

!  ! 3.73E46 !  ;

1

3. PARTICULATE i

,_____. ..__ _ _... _ _ _ __ ..__..__________., {4 i

i_

3R 89  ! CI ! (1. ME-11 $ (1.HE-ii ! (i.HE-98

! (i.ME48 !

.._____._.i l

1

!- IR 90  ! CI ! (1.9E-li ! (1.99E-11 ' (1.99f-98 ! (l.ME-v8..e!

r CJ134  ! CI ! (1.99E-ii 8 (1.99E-11 ! (1.99E48 ! (1.90E-98 ! I i.__-

CI 137  ! CI ! (1.99E 11 ! (1.99E-li ! (1.99E4B ! (1.90E-98 !

! BA (49 '  ! CI ! (1.99E ti ! (1.99E-11 ! (1.99E4B ! (1.99E-98 ! l

_ _ . . . _ _ _ . . _ _ . . _ _ _ . . . . . . _. .. __. .....__ .__i i LA 14A

.____..____ 5 ' CI ! ti.f 5E_11 ! (1.00E_11 ! (1.90E48 ! {1.NE48 !

I- CR 51-  ! CI ! (1.99E-12 ! (1.99E-12 ! 2.35E47 ! (1.09E-12 !

! j

!- CD 58 i CI

. . ._.' (1.00E-12 ! (1.00E-12 ! 9.92E47 ! (1.90E-12 .. -. . ..i !

l CI ! (1.90E-12 (1.99E-12!

i i

NB 95

. _.... . ' ._ _ . . __.1.38E48 '.(i.99E _12 !

! AG119M  ! Cl ! (1. ME-12 ! (1.99E-12 ' 4.34E-98 ! (l. ME-12 !

g . __.. . . _ _ . _ _ .

1

)

1

. TABLE 2A l

G b hfL Eh k L N N kL b i i___.. _..____. . _ _ .

i i e a i

! UNIT!QUARTEfi3IQUARTER4}EITTOTAL!

!  !  !  ! ERROR, I !

.._____. -i A. FIIIION AND ACTIVATION PRODUCTI i . .. . ... .. :

!i.TOTALRELEAIE(EX.!  !  !  !  !

! TRIT.,GAIES, ALPHA)! CI ! 2.37E-02! 1.09E-02 ! 2.50E+01'i

32. AVG. DILUTED  ! ' ' '

! CONC.DURINGPRD. !UCI/ML! i.57E-09 i 7.63E-10!

i_ .. __ . .- __i

!3.PERCENTOF  !  !  !  !

! APPLICABLE LIMIT !% ! #  ! *  !

B. TRITIliM i - .____ .__.. .. ..__._ . .i

!i.TOTALRELEAIE  ! CI ! 2.95E+01 ! 6.08E+01 ! 2.50E+0!!

i. . . . . . . . _ _ _ _ _ _ _ . . . . _ _ _ . _ _ _ . . _ _ _ . _ _ _ _ . - -

!2. AVG. DILUTED  !  !  !  !

! CONC. DURING PRD. !UCI/ML! 1.96E-06 ' 4.27E-06 !

!3. PERCENT OF  !  !  !  !

.!APPLICABLELIMIT  ! !  ! *  ! *  !

C. DIISOLVED AND ENTRAINED GAIES

._ . . ____i

!1.TOTALRELEAIE  ! CI ! 1.BiE-04! 8.20E 2.50E+0i! .. .__.

!2. AVG. DILUTED  !  !  !  !

! CONC. DURING PRD. !UCI/ML! 1.20E-11 ' 5.76E-10 !

i __..___..__. .- ..i

!3.PERCENTOF  !  !  !  !

! APPLICABLE LIMIT 'I  !

D. GR0IS ALPHA RADI0 ACTIVITY i__ .. ...- .. . _.

! CI ! (1.00E-07 ! (1.00E-07 ' 2.50E+0i !

.!1.TOTALRELEAIE i ._ _ _ _ _ _ , .. _. .

!E. VOL. OF WAITE  !  !  !  !  !

!RELEAIED(N0DIL.) !LITERI! 1.33E+07! 9.69E+06 ' i.00E+01 !

. ___.__._ . .i i . i

!F. VOL. OF DILUTION!  !  !  !  !

! WATER DURING FERIOD !LITERI! 1.51E+10 ! 1.42E+10 ! i.00E+0!!

- . _i NOTE: ALL LESI THAN VALUEI (() ARE IN UCI/ML.

• I TECH. SPEC. LIMITI: LISTED ON D0!E

SUMMARY

TABLE.

--__ - ______ _. _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ . _ __ _-_-___________--________-______-___a

TABLE 2B EFFLUENT AND UASTEgSgg'NUAL REFORT (1988)

CONTINUOUSMODE BATCHMODE i...__....___....-- .- __._____ i i  !  !'  !  !  ! .!

!NUCLIDESRELEASED! UNIT! QUARTER 3! QUARTER 4! QUARTER 3! QUARTER 4!

i i i i a i )

.__ __i

' ~

1 _____..___ ..

4  ! IR 89

! CI ! (5.ME48 ! (5.00E-08 ! 1.46E-05 ! (5.ME-08 !

-l

! 90

i. ._.IR .____._____.. . ! CI ! (5.00E-08 ! (5.00E-08 ! (5.00E-08_! __i (5.ME _08 !

! C3 134

! CI ! 1.26E _ _. _-04 ! (5.00E-07 !

7.74E 04 ! 1.03E-03 !

.__.___________ ... i

! CI 137  ! CI ! 6.45E-04 ! 2.14E-04 ! 8.84E-04! 1.23E-03!

i . ._....__. ..._. - . i

! 1 131  ! CI ! (1.00E46 ! 1.25E43 ! 9.86E-06 ! 6.54E-05i i _ _ . . .

__ ____. _. .i

! C0 58 i.. __.  ! C1 ! 2.23E-04!(5.00E-07! 1.56E_02! 1.95E-03i

! C0 60 '

i.___._____ CI ! (5. M E-07 ! (5.00E-07 ! 2.95E _04 !: 3.22E-05 i-

! FE 59  ! CI ! (5.NE47 ! (5.00E-07 ! 1.77E-05!(5.ME-07!

i._ ___ _ . .. ___...- .. _ .- .. ..__.___i

! 2N 65 s.___  ! CI '(5.00E-07!(5.ME-07!(5.ME_07!(5.ME-07i

__. . ..._ . . ..__...i

! Cl ! (5.00E-07 ! (5. ME-07 ! 7.02E-05 ! 5.97E-06i

! ___. MN 54 CR 51 Cl '(5.NE-07!(5.00E-07! 1.93E-03!.(5.00E-07!i s...___..__'__

! IR 95  ! CI ! (5.00E47 ! (5.00E-07 ! 1.14E-04 ! (5.ME-07 i i.... .. ._ . . . . . ___ i

! NB 95 i ___- .._' Cl ! (5.00E-07 ! (5.00E-07 8 2.83E-04! _i8.61E_06!

i MO 99 i..__ .. ...  ! CI ! (5.ME-07 ! (5.00E _07 ! (5.ME47

. ._ .______. . ___ ___ ! _(5.00Ei _07 !

! TC 99M  ! CI !(5.00E-07!(5.00E-07!(5.ME-07!(5.00E-07!

! BA 140 i ___.  ! CI ! (5.00E _07 ' (.5.00E47 ! (5.ME _07 ! (5.00E-07

. ___ ___ . . _..__.__. i  !

i_.

LA 140

! CI !(5.ME07!(5.00E-07! 2.31E05!(5.00E-07ii

! CE141  ! Cl ! (5.00E-07 ! (3.M E-07 ! (5.ME-07 ? (5.00E-07 i i____ .. .__ . . ... ...___i i FE 55 8 CI ! (1.00E46 ! (1.00E-06 ! 2. lie-03! 4.76E-03i __ . i i..__.. .

! RU 103  ! CI i.......___.__........_'______..___.___.(5.00E-07 __.  ! (5.M E 07 .__i! 6.44E-06 8 (5.00E47 !

! AGliOM  ! CI ! (5.00E-07 ! (5.ME47 ! 4.77E-04! i.10E-04i i ..... . _ . _ _ _i

! IB 125 2.18E

!.  ! CI ! (5.00E-07 ! (5.ME-07 '..(.5.ME47 !.....

.______ __. . .. ..! ...__......._ _ __-04 i s ._ _ __ .. ..... . . . . . . - - -.

! 70TAL FOR FERI0f 8 CI ! 9.94E44 ! 1.4E-03! 2,27E42! 7.41E-93

!...=- . .. .... .. .._.._.._...____.__!  !

i. __. .. ...__.. .. . . . ..____ . :

! XE 133  ! CI ! (1.00E-04 ! (1 ME44 ! i.57E-04' 8.20E-03i

.. ._........ i

i. .__. __.__..___. ...,___.

! XE 135

!. _ ... .....__.. ' ..... C1 ! (1.00E44 ! (1.00E44..__

.. .  ! 2.77E_05!(1.00E_04i WOTE: ALL LE!! THAN VAL WJ (() ARE IN UCI/ML.

I

s . .-- -

e .

s. . . .

Rev, 1 TABLE 3A EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT SOLID WASTE AND IRRADIATED FUEL SHIPMENTS July 1, 1988 - December 31, 1988 A. Solid waste shipped off-site for burial or disposal (not irradiated fuel)

1. Type of vaste UNIT ,

f,7$$)h gRbR

a. opent resins, filter sluages, a d

79.0 me evaporator bottoms, ere. 5g Ci 688.6 Ci.

b. Dry compressible waste, conta=inated a3 4m3 eouipment, etc. 5%

c4 113.h6

2. Ci.

c. Irraciateo co ponents, control m i rods, etc. N/A N/A Ci

d. Other (describe) Ii N/A N/A

2. Estimate of major nuclide composition (by type of waste)

a. Cn58 69_ q %

Cs197 15lo y Cs134 12.0 t Ni63 ~

3.98%

b. CoS8 L8,8 Cs137 33,p i Ni65 9.36 %

FeRS 5.95%

Cr51 L . o1 %

c. g

% e d.

t

3. Solid Waste Disposition Number of Shionents Mode of Transportation Destination n) "ee Attached Sheet for this Information b) 7ee Attached sheet for this Information B. Irradiated Fuel Shipments (Disposition)

Number of Shipments Mode of Transportation Destination

'!/ A '

.B-I

o ,

TMI-1 EFFLUENT & WASTE DISPOSAL SEMI-ANNUAL REPORT 07/01/88 Through 12/31/88, Rev. 1 Table A.3.a No. of Shipments Mode of Transportation Destination 5 Tractor-Flatbed Hanford-Richland, WA 2 Tractor-Cask (Nupac 14/190M) Hanford-Richland WA 2 Tractor-Cask (HN-200) Barnwell, SC 1 Tractor-Cask (CNSI 8-120B) Barnwell, SC 1 Tractor-Cask (HN-100 Series 3) Barnwell, SC Table A.3.b No. of Shipments Mode of Transportation Destination 2 Tractor-Flatbed Hanford-Richland, WA 1 Tractor-Closed Van Hanford-Richland WA 1 Tractor-Closed Van Barnwell, SC 1 Tractor-Cask (Nupac 14/190M) Hanford-Richland, WA

• 1 Tractor-Flatbed Quadrex Recycle Center Oak Ridge. TN

• 1 Tractor-closed Van Scientific Ecology Group (SEG)

Oak Ridge, TN WASTE SHIPPED AS FOLLOWS:

TABLE 1.a:

Seven (7) - 170 Ft.' Steel Liners /Dewatered Resin Seven (7) - 178 Ft.* Steel Liners / Solidified with Cement Two (2) - EA-50 High Integrity Containers / Mechanical Filters Two (2) - RADLOK 200 HICs/ Resins One (1) - RADLOK 500 HIC / Resins TABLE 1.b:

Four (4) - 135 Ft.' Steel Boxes Thirteen (13) - 44 Ft.* Steel Boxes Eighty-Seven (87) - 7.5 Ft.' Steel Drums

• 0ne (1) - 8' y. 8' x 20' Steel Box, 1280 Ft.*

'One Hundred Twenty-Eight (128) - 7.5 Ft.* Steel Drums

• Material Sent to Waste Processor for Volume Reduction l

1

, . .. EFRUENT 0WAITE MSPOSAL SEMIANFUAL REPORT

'!UPPLEMENTAtTNFORMATION

. FACILITY: THIUNITi LICENIE: DPR59-289 l

1. REGULATORY LIMITI - - - REFER TO THI UNIT i TECHNICAL IPECIFICATIONI g g g AND ACTIVATION GAIEI; C. PARTICULATE HALF-LIVES ) 8 DAYI:

ILLIQUIDEFFLVINTI:

2. MAXIMUM PERMISSIBLE CONCENTRATION - - - 19 CFR 29, APPENDIX B TABLE II P g If g g g DETERMINING ALLOWABLE RELEAIE

{.ggANDACTIVATIONGAIES:

C. PARTICULATE! HALF-LIVE! ) 8 DATI:

D. LIQUID EFRU$NTI:

3. AVERAGE ENERGY hR khbhthlNA k i b if0 b F AfftICABLE E-BAR BETA = 3.79E-91 E-BAR GAMMA = 7.88E-91 E-BAR BETA AND GAMMA = 1.16E+99

4. MEAIUREMENTI AND APPR0XIMATIONI 0F TOTAL RADIDACTIVITT NUM METHBIMOVENSIE!PCWBtilF g.ggANDACTIVATIONGAIES: g g g , LIQUID SCINTILLATION ~

C. PART EULATE! PROP 0RTIONAL,-

HPGESPECiggTRg!

D. LIQUID EFRUENTI: HPGE SPECTROMETRY, LIQUID SCINTILLATION

5. BATCH RELEAIE!

bbkibi b Lb Ibth D H M 0M I M F

• A. LIQUID GlJARTER 3 ! QUARTER 4

1. NUhBER OF BATCH RELEASEI: 37  ! 24

2. TOTAL TIME PERIOD FOR BATCH RELEAIEI: (MIN.) 11842. ! 9819.

3. MAXIMUM TIME PERIOD FOR A BATCH RELEAIE (MIN.) 615. ! 825.

4. AVERE E flME PERIOD FOR BATCH RELEAIES: (MIN.) 329. ! 499.

5. MINIMUM TIhE PERIOD FOR A 1ATCH RELEAIE: (MIN.) 69.  !- 180.

6. AVERAGE ITREAM R0W DURING PERIODI 0F RELEAIE  !

0F EFRUENT INTO A R0 WING STREA4: (CFM) 5.91E+05 ! 9.69E+95 B. GA!EDUI h'. T ME Ob0 AkCHRELEAIE!: (MIN.) 2Bh9. ! 9 5.

3.MAXIMittTIMEPERIODFORABATCHRELEASE: (MIN.) 8370. ! 1979.

4. AVERAGE TIME PERIOD FOR BATCH RELEAIE!: (MIN.) 999. ! 498.

5.MININUMTIMEPERIODFORABA1CHRELEAIE: (MIN.) 151. ! 1.

6.ABNORMALRELEAIES bbkBEROFRELEAIE!:  ! 2.TOTALACTIVITYRELEAIED: (CURIEI) N/A  ! N/A BER OF RELEAIES:  ! 2. TOTAL ACTIVITT RELEAIED: (CURIEI) N/A ' N/A I

I j

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 1988.

1 A. Liquid (Individual) l l

The first two lines present the maximum hypothetical dose to an i ndividual . Presented 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 drinking water, irrigated cow milk, irrigated goat milk, irrigated beef, consumption of fish, and standing on the shoreline influenced by TMI effluents. The latter two pathways are considered to be the primary recreational activities associated with the Susquehanna River in the vicinity of TMI. The irrigation pathways apply to the sewage sludge.

The " receptor" would be that individual who consumes water from the Susquehanna River and fish residing in the plant discharge, while occupying an area of shoreline influenced by the plant discharge and consuming the milk and beef fed irrigated vegetation.

After calculating the doses to all age groups for all eight organs resulting form the three pathways described above, the Dose Summary Table presents the maximum whole body dose and affected age group along with the organ and associated age group that received the largest dose.

For the second half of 1988 the calculated maximum whola body dose received by anyone would have been 0.062 mrem to an adult. Similarly, the maximum organ dose would have been 0.086 mrem to the liver of a teenager.

B. Gaseous (Individual)

There are seven major pathways considered in the dose calculations for gaseous effluents. These are: (1) plume, (2) inhalation, consumption of (3) cow milk, (4) goat milk, (5) vegetables, (6) mcat, and (7) standing on contaminated ground.

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 these doses are not to an individual, but are considered to be the maximum dose that would have occurred at or beycnd the site boundary. The Dose Summary Table presents the distance in meters to the location in the affected sector (compass point) where the theoretical maximum plume exposure occurred. It should be noted that real-time meteorology was used in all dose calculations for gaseous effluents. Lines 5 and 6 present the dose which could actually be received by an individual from the noble gas effluents for the second half of 1988. The calculated maximum whole body dose received by anyone from noble gases would have been 0.0048 mrem. Similarly, the maximum dose to the skin would have been 0.013 mrem.

The iodines and particulate section described in line 7 represents the maximum exposed organ due to iodine and particulate. This does not include any whole body plume exposure which would be separated out by lines 5 and 6. The doses presented in this section again reflect the-maximum exposed organ for the appropriate age group.

The second half 1988 iodines and particulate would have resulted in a maximum dose of 0.0037 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.

C. Liquid'and Gaseous'(Population)

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. Liquid person-rem is based upon the population encompassed.within the region from the TMI outfall extending down to the Chesapeake Bay. The person-rem for gaseous effluents are based upon the 1980 population and consider the population out to a distanceLof 50 miles around TMI. Population doses are summed over all distances and sectors to give an aggregate dose.

Based upon the calculations performed for the second half of 1988, liquid effluents resulted.in a whole body population dose of 2.3 person-rem.

The maximum critical organ population dose' to the thyroid was 2.6 person-rem. Gaseous effluents resulted in a whole body population dose of 0.15 person-rem. Maximum critical organ population dose to the skin was 0.51 person-rem.

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-TABLE K 1988 JOINT FREQUENCY-TABLES HOURS AT EACH WIND SPEED A 6 DIRECTION HOURS AT EACH k!ND SPEED AND DIRECTION '

PERIOD OF RECORD = 88010101 88123124- PERIOD OF RECORD = 88010101 88123124- ~

STABILITY CLASS: A . DT/DZ STABILITY CLASS: C DT/DZ

. ELEVATION: SPEED:SP100A DIRECT!0N:Dl100A LAPSE:DT150A' ELEVAfl0N: SPEED:SP100A DIRECTION:Dl100A . LAPSE:DT150A WIND SPEED (MPM) WIND SPEE3(MPH)

WIND- WIND

.. DIRECTION 't 3 47 . 8 12 13 18 19-24 >24 TOTAL DIRECTION 13 4*7 8 12 13 18 19 24 >24 total N 8 38 13 2 1 0 62 N' 2' 3 3 1 01 -1 10

'NNE' 4 8 4 0 0 0 16 NNE 1 2 2' 0 0 0' 5 NE 3 9 'O O 0 0- 12 NE O 3' 0' 0 0 0- '3 >

ENE 1 6. 4 0 0 0 11 .ENE 1 4. 3 0 0 0. .5 E 2 8 3' O 0 0 13 E i '8 6 0 'O O 15 -

ESE 4 9 12 4 0 0 29 ESE .4 7 10 2 1 0 . ' 24 SE 4 24 10 0 0 0 ' 38 SE 3 3 4 ,0 0 0 to SSE 3 15 8 0 0 0 26 SSE 'O 2 8 0- 0 0 10 S 7 23 10 0 0 0 40 S 2 4 ~8- 2 0 0 16

~ SSW 8 62 30 6 '0 0 106 SSW .2 13 9 5 0 0 29

-SM 18 46 24 3 0. 0 91 SW 4 6 1 2 0 0 13 WSW 13 13 13 0 0- 0 39 WSW 1' 3 0 0 0, 0 .' 4 W 13 22 33 10 0 0 78 . W 2 -5 6 7 1 0 21 WNW 24 34 46' = 16 0 0 120 WNW 1 1 ' 11 '7 1 0 21 '

N9 ' 51 86.-105 - 37 6 0 287 NW 0 4 14 9 3 1 . 31 '

f cNW 24 86 60 20 11 1 202 NNW. 3 5 3 6 5 0. . 22 TOTAL 187 489 375 9.3 20 1 .1170 TOTAL 27 73 88 41 11 2! 242 4............................................................. .............................................................

PERIODS OF CALM (HOURS): 6 PERIODS OF CALM (HOURS): 6 UARIABLE DIRECTION 330 VARIABLE DIRECTION 47-HOURS OF MISSING DATA: 172 HOURS OF MISSING DATA: ~172 HOURS AT EACH WIND SPEED AND DIRECTION HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 88010101 88123124 PERIOD OF RECORD = 88010101 88123124 STABILITY CLASS: B DT/DZ STA81LITY CLASS: 0 OT/DZ-ELEVAfl0N: SPEED SP100A DIRECTION:Dl100A LAPSE:DT150A ELEVATION: SPEED:SP100A DIRECT!0N:Dl100A LAPSE:DT150A WIND SPEED (MPH) WIND SPEE0(MPM)

WIND ,

WIND

. DIRECTION 13 '4 7 8 12 13 18 19-24 >24 TOTAL DIRECTION 13 47 8 12 13 18 19 24 >24 TOTAL N 2 3 5 1 0 0 11 N 17 43 18 4 3 0 85 NNE 2 3 2 0 0 0 7 NNE 23 24 5 1 0 0 53-NE . 2 6 2 0 0 0 10 NE 15 33 14 1 0 0 63 ENE 4 8 1 0 0 0 13 ENE 16 37 20 0 0 0 73 E 1- 6 6 0 0 0 13 E 36 70 58 14 0 0 178 ESE 4 4 11 0 0 0 19 ESE 22 79 84 9 3- 0 197 SE 3 10 6 1 1 0 21 SE 17 56 60- 3 1 0 137 SSE 1 3 3 0 0 0 7 SSE 14 76 24 5 0 0 119 S 2 9 14 0 0 0 25 S 18 88 52 9 1 0 168 SSW 3 11 17 3 1 0 35 SSW 21 85 54 14 1 0 175 S3 7 13 7 1 0 0 28 SW 19 38 26 4 0 0 87 USW 4 4 4 0 0 0 12 WSW 22 44 17 3 0 0 B6 d 3 3 9 7 0 0 22 W 18 56 82 58 3 0 217 WNW 4 4 13 8 1 0 30 WNW 14 50 128 125 29 1 347 NW 3 11 16 14 3 0 47 NW 17 35 118 135 28 2 335

~ N:W 4 .7 7 15 4 0 37 NNW 25 36 47 29 14 1 152 70TAL 49 105 123 50 10 0 337 TOTAL 314 850 807 414 83 4 2472 PERIODS OF CALM (HOURS): 6 PERIODS OF CALM (HOURS): 6 VARIABLE DIRECTION 77 VARIABLE DIRECTION 495 HOURS OF MISSING DATA: 172 HOURS OF MISSING DATA: 172

TABLE K-1 (cont) 1988 JOINT FREQUENCY TABLES HOURS AT EACH WIND SPEED AND DIRECTION H00tS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 88010101-88123124 PERIOD OF RECORD = 88010101 88123124

$7#81LITY CLASS: E DT/DZ STABILITY CLASS: G DT/DZ ELEVATION: SPEED:SP100A DIRECTION:01100A LAPSE:DT150A ELEVATION: SPEED:SP100A DIRECTION:DI1OOA LAPSE:DT150A WIND SPEED (MPH) WIND SPEED (MPH)

WIND WIND DIRECT 10N 1-3 47 8 12 13 18 19 24 >24' TOTAL DIRECTION 13 47 8 12 13 18 19 24 >24 TOTAL N 38 101 22 7 0 0 168 N 15 7 1 0 0 0 23 CNE 29 56 8 0 0 0 93 NNE 5 0 0 0 0 0 5 NE 33 37 3 0 0 0 73 NE 19 4 0 0 0 0' 23 ENE 40 40 2 0 0 0 82 ENE 19 3 0 0 0 0 22 E 42 76 19 .1 0 0 138 E 23 11 0 0 0 0 34 ESE 52 33 25 5 0 0 115 ESE 41 14 0 0 0 0 55 SE 57 70 16 2 0 0 145 SE 28 9 0 0 0 0 37

$5E 36 69 20 2 0 0 127 $$E 19 5 0 0 0 0 24 5 29 86 48 1 0 0 164 S 33 9 0 0 0 0 A2 SSW 35 92 79 18 0 0 224 $$W 15 15 1 0 0 0 31 SW 60 85 41 6 0 0 192 SW 36 8 0 1 0 0 45 WSW 49 87 17 0 0 0 153 WSW 31 15 0 0 0 0 46 W 50 151 88 22 2 1 314 W 22 25 ' 2 0 0 0 49 WNW $3 110 114' 56 8 0 341 WNW 16 10 0 0 0 0 26 NW 51 73 121 55 18 1 319 NW 24 12 2 2 0' O 40 NNW 54 69 48 17 0 0 188 NNW 19 12 0 1 0 0 32 70TAL 708 1235 671 192 28 2 2836 TOTAL 365 159 6 4 0 0 534 PERIODS OF CALM (HOURS): 6 PERIODS OF CALM (HOURS): 6 VAR!ABLE DIRECTION 827 VARIABLE DIRECTION 318 HOURS OF MISSINO DATA: 172 HOURS OF MISSING DATA: 1 72 HOURS AT EACH WIND SPEED AND DIRECTION HOURS AT EACM WIND SPEED AND DIRECTION PERIOD OF RECORD = 88010101-88123124 PERIOD OF RECORD = 88010101 88123124 STABILITY CLASS: F DT/02 STABILITY CLASS: ALL DT/DZ ELEVATION: SPEED:SP100A DIRECTION:01100A LAPSE:DT150A ELEVATION: SPEED:SP100A DIRECT!DN:01100A LAPSE:DT150A WIND SPEED (MPH) WIND SPEED (MPM)

WIND WIND DIRECTION 13 47 81213181924 >24 TOTAL DIRECTION 13 47 8-12 13 18 19 24 >24 TOTAL N 29 22 0 0 0 0 51 N 111 217 62 15 4 1 410 NME 24 7 0 0 0 0 31 NME 88 100 21 1 0 0 210 NE 24 6 0 0 0 0 30 NE 96 98 19 1 0 0 214 ENE 30 16 0 0 0 0 46 ENE 111 114 30 0 0 0 255 E 39 29 1 0 0 0 69 E 144 208 93 15 0 0 460 ESE 49 21 3 0 0 0 73 ESE 176 167 145 20 4 0 512 j 2- 0 458 SE So 17 2 0 0 0 70 SE 162 189 98 6 4

$$E 42 13 0 0 0 0 55 SSE 115 183 63 7 0 0 368 I S 43 11 0 0 0 0 54 5 134 230 132 12 1 0 509 SSW 43 29 5 6 0 0 83 SSW 127 307 1 95 52 2 0 683 SW 47 19 3 0 0 0 69 SW 191 215 102 17 0 0 525 WSW 35 25 2 0 0 0 62 WSW 155 191 53 3 0 0 402 W $0 44 8 0 0 0 102 W 158 306 228 104 6 1 803 WNW $0 19 5 0 0 0 74 WWW 162 228 317 212 39 1 959 NW 41 23 6 1 0 0 71 NW 187 244 382 253 60 4 1130 I

NNW 37 33 8 2 1 0 81 NNW 166 248 1 73 90 35 2 714 TOTAL 633 334 43 9 1 0 1021 TOTAL 2283 3245 2113 808 153 9 8612 1

.............................................................. ................................................... ......... j PERIODS OF CALN(HOURS): 6 PERIODS OF CALM (HOURS): 6  :

VARIABLE DIRECTION 582 VARIA8LE DIRECTION 2676 j HOURS OF MISSING DATA: 1 72 HOURS OF MIS $1NG DATA: 1 72 j 1

i

THREE MILE ISLAND 1988 JOINT FREQUENCT TABLES SPECIFIC BATCH RELEASE PERIODS HOURS AT EACH WIND SPEED AND DIRECTION HOURS AT EACH WIND SPEED AND DIRECTICN PERIOD OF RECORD = 88013002-88123017 PERIOD OF RECORD = 88013002-88123017 STABILITY CLASS: A DT/DZ STABILITY CLASS: 07/02

(. ELEVAfl0N:

C SPEED:SP100A DIRECT 10N:01100A LAPSE:DT150A ELEVATION: SPEED:SP100A DIRECTICN:01100A LAPSE:DT150A WIND SPEED (MPH) WIND SPEED (MPH)

WIND WIND DIRECTION- 13 47 8 12 13-18 19-24 >J4 TOTAL DIRECTION 13 4 8 12 13 18 19 24 >24 TOTAL N 1 8 1 0 0 0 10 N 0 1 0 0 0 0 1 NNE O 2 1 0 0 0 3 NNE O O O O O O O NE 1 3 0 0 0 0 4 NE O 1 0 0 0 0 1 ENE 0 3 0 0 0 0 3 ENE 0 0 0 0 0 0 0 E 1 4 0 0 0 0 5 E D 3 0 0 0 0 3 ESE O 2 2 0 0 0 4 ESE 1 0 0 0 0 0 1 SE 2 4 1 0 0 0 7 SE D 1 0 0 0 0 .1 SSE 2 6 1 0 0 0 9 SSE O O 1 0 0 0 1' S 2 4- 6 0 0 0 12 s 1 0 0 0 0 0 1

$$W 1 20 6 2 0 0 29 SSW D 3 2 0 0 0 5 SW 3 7 3 1 0 0 14 SW 1 1 0 1 0 0 3 WSW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 5 7 1 0 0- 0 13 W D 0 0 1 0 0 1 WNW 2 4 10 1 0 0 17 WNW D 0 1 1 0 0 2 NW 4' 12 12 3 0 0 31 NW D 1 2 1 0 0 4 NNW 2 8 5 2 1 0 18 NNW D 1 0 0 0 0 1 TOTAL 26 94 49 9 1 0 179 TOTAL 3 12 6 4 0 0 25 PERIODS OF CALM (HOURS): 1 PERIODS OF CALM (HOURS): 1 VARIABLE DIRECTION 50 VARIABLE DIRECTION 5 HOURS OF MISSING DATA: 25 HOURS OF MIS $1NG DATA: 25 HOURS AT EACH WIND SPEED AND DIRECTION HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 88013002-88123017 PERIOD OF RECORD = 88013002 88123017 STABILITY CLA35: 8 DT/DZ STABILITY CLASS: D DT/DZ ELEVATION: SPEED:SP100A DIRECT 10N:01100A LAPSE:DT150A ELEVATION: SPEED:SP100A DIRECTION:01100A LAPSE:DT150A WIND SPEED (MPH) WIND SPEED (MPH)

WIND WIND DIRECTION 13 47 8-12 13 18 19-24 >24 TOTAL DIRECTION 13 4-7 8 12 13-18 19 24 >24 TOTAL N 0 0 0 1 0 0 1 N 3 5 4 0 0 0 12 NNE 1 2 0 0 0 0 3 NNE 2 4 3 1 0 0 10 NE O O O 0 0 0 0 NE 3 5 1 0 0 0 0 ENE 0 2 0 0 0 0 2 ENE O O 1 0 0 0 1 E O O O O O O O E 6 7 3 0 0 0 16 ESE O O 1 0 0 0 1 ESE 1 7 4 0 0 0 12 SE 2 1 2 0 0 0 5 SE 3 13 1 0 0 0 17

$$E 1 1 0 0 0 0 2 $$E 1 9 2 0 0 0 12 S 0 2 1 0 0 0 3 S 3 15 6 0 0 0 24 SSW 1 3 1 0 0 0 5 SSW 7 23 13 1 0 0 44 SW 1 4 0 0 0 0 5 SW 6 5 9 1 0 0 21 WSW 2 1 0 0 0 0 3 WSW 3 5 4 1 0 0 13 W 2 1 1 0 0 0 4 W 3 4 6 8 0 0 21 WNW 0 1 1 0 0 0 2 WNW 1 6 9 14 4 0 34 NW 0 2 2 0 0 0 4 NW 2 6 8 10 4 1 31 NWW 0 0 0 1 0 0 1 WWW 1 3 3 1 2 0 10 TOTAL 10 20 9 2 0 0 41 TOTAL C 117 77 37 10 1 287

.............................................................. .............................................. . - . - - 1 PERIODS OF CALM (HOURS): 1 PERIODS OF CALM (HQURS): 1 l VARIABLE DIRECTION 16 VARIABLE DIRECTION 71 1 HOURS OF M!tSING DATA: 25 HOURS OF MISSING DATA: 25 t

l I

_ _ _ - . _ _ _ _ _ - - - - - - - _ _ _ _ _ _ _ _ _ o

e  ;

THREE MILE ISLAC 1988 JOINT FREQUENCY TABLES SPECIFIC BATCH RELEASE PERIODS HOURS AT EACH WIND SPEED AND DIRECTION HOURS AT EACH WIND SFEED AND DIRECTION 88013002-88123017 PERIOD OF RECORD = 88013002-88123017

f. PERIOD OF RECORD =

t- STABILITY CLASS: E DT/DZ STABILITY CLASS: G DT/DZ ELEVATION: SPEF.0:SP100A DIRECTION:01100A LAPSE:DT150A ELEVATION: SPEED:SP100A DIRECTION:D1100A LAPSE:DT15CA WIND SPEED (MPH) WIND SPEED (MPH)

WIND WIND DIRECTION 1-3 4-7 8 12 13 18 19-24 >24 TOTAL DIRECTION 1-3 47 8 12 13 18 19 24 >24 TOTAL N 3 14 3 1 0 0 21 N 3 0 0 0 0 0 3 i NNE 2 6 4 0 0 0 12 NME O O O O O O O NE 3 1 0 0 0 0 4 NE O O O 0 0 0 0 ENE 1 2 0 0 0 0 3 ENE 1 0 0 0 0 0 1 E 5 5 0 0 0 0 10 E O O 0 0 0 0 0 i

ESE 12 7 0 0 0 0 19 ESE 6 1 0 0 0 0 7 1 SE 10 8 1 0 0 0 19 SE 7 1 0 0 0 0 8 ]

SSE 7 15 4 0 0 0 26 SSE 1 0 0 0 0 0 1 S 5 21 2 0 0 0 28 5 3 1 0 0 0 0 4 SSW 5 26 10 0 0 0 41 SSW 2 1 0 0 0 0 3 SW 6 8 2 0 0 0 16 SW 3 1 0 1 0 0 5 WSW 2 11 1 0 0 0 14 WSW 3 0 0 0 0 0 3 W 6 20 14 1 1 0 42 W 2 0 0 0 0 0 2 WNW 6 11 23 17 4 0 61 WWW 2 1 0 0 0 0 3 A NW 7 13 16 15 7 0 58 NW 0 0 0 0 0 0 0

) NNW 13 9 10 0 0 0 32 NNW 1 0 0 0 0 0 1 TOTAL 93 177 90 34 12 0 406 TOTAL 34 6 0 1 0 0 41 PERIODS OF CALM (HOURS): 1 PERIODS OF CALM (HOURS): 1 VARIABLE DIRECTION 112 VARIABLE DIRECTION 26 HOURS OF MISSING DATA: 25 HOURS OF MISSING DATA: 25 HOURS AT EACH WIND SPEED AND DIRECTION HOURS AT EACH WIND SPEED AND DIRECTICN PERIOD OF RECORD = 88013002 88123017 PERIOD OF RECORD e 88013002 88123017 STABILITY CLASS: F DT/DZ STABILITY CLASS: ALL DT/DZ ELEVATION: SPEED:SP100A DIRECTION:01100A LAPSE:DT150A ELEVATION: SPEED:SP100A DIRECT 10N:D1100A LAPSE:DT150A WIND SPEED (MPH) WIND SPEED (MPH)

WIND WIND DIRECTION 1-3 47 8 12 13 18 19-24 >24 TOTAL DIRECTION 1-3 4-7 8 12 13 18 19 24 >24 TOTAL N 4 3 0 0 0 0 7 N 14 31 8 2 0 0 55 NNE 1 0 0 0 0 0 1 NNE 6 14 8 1 0 0 29 NE 3 0 0 0 0 0 3 NE 10 10 1 0 0 0 21 ENE 3 0 0 0 0 0 3 ENE 5 7 1 0 0 0 13 E 7 0 0 0 0 0 7 E 19 19 3 0 0 0 41 ESE 4 2 0 0 0 0 6 ESE 24 19 7 0 0 0 50 SE 13 4 1 0 0 0 18 SE 37 32 6 0 0 0 75 SSE 9 0 0 0 0 0 9 SSE 21 31 8 0 0 0 60 S 9 2 0 0 0 0 11 $ 23 45 15 0 0 0 83 SSW 8 3 0 0 0 0 11 SSW 24 79 32 3 0 0 138 SW 2 2 0 0 0 0 4 SW 22 28 14 4 0 0 68 WSW 3 3 1 0 0 0 7 WSW 13 20 6 1 0 0 40 W 7 5 0 0 0 0 12 W 25 57 22 10 1 0 95 WNW 5 2 0 0 0 0 7 WNW 16 25 44 33 8 0 126 NW 5 2 2 0 0 0 9 NW 18 36 42 29 11 1 137 NNW 2 6 5 0 0 0 13 NNW 19 27 23 4 3 0 76 TOTAL 85 34 9 0 0 0 128 TOTAL 296 460 240 87 23 1 1107 PERIODS OF CALM (HOURS): 1 PERIOOS OF CALM (HOURS): 1

, VARIABLE DIRECTION 75 VARIABLE DIRECTION 355 HOURS OF MIS $1NG DATA: 25 hours OF MISSING DATA: 25 4

A

o. xs GPU Nuclear Corporation 1 Nuclear  ::: ,o = :s= 4eo Middletown, Pennsylvania 17057 0191 717 944-7621 TELEX 84 2386 Writer's Direct Dial Number:

February 28, 1989 C311-89-2021 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Dear Sir:

Three Mile Nuclear Station Unit 1 (TMI-1)

Operating License No. DPR-50 Docket No. 50-289 Second Half - 1988 Semi Annual Effluent and Release Report Enclosed is the TMI-1 Semi Annual Effluent and Release Report for the period July 1, 1988 through December 31, 1988. This report includes an Executive Summary of the Effluent Release Report, the Disposal and Effluent Release Data, and an assessment of the radiation doses due to liquid and gaseous effluents released from the Unit during the reporting period.

TMI Technical Specification Sections 6.9.4.2.1 and 6.9.4.2.2 require reporting of effluent data and solid waste shipment data in accordance with Reg.

Guide 1.21 for the semi-annual report period. These tables are attached including summaries of solid waste shipments and liquid and gaseous effluents for the reporting period.

TMI Technical Specification Section 6.9.4.2.3 requires a summary of unplanned releases from the site to unrestricted areas. During this report period, there were no unplanned releases.

TMI Technical Specification Section 6.9.4.2.4 also requires that changes to the Process Control Program (PCP) and Offsite Dose Calculation Manual (0DCM) be reported. There were no changes to either of these programs. This section also requires "a listing of rew locations for dose calculations and/or monitoring identified by the land use census pursuant to Specification 3.23.2."

There were no new locations during this semi-annual period.

1 gc6 i f i GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation l

_ _ _ _ _ \

• 3 C311-89-2021 February 28, 1989.

TMI Technical Specification Section 6.9.4.2.5 requires reporting of instrumentation not returned to OPERABLE status within 30 days por Section 3.21.1.b and 3.21.2.b. All instrumentation under this Tech. Spec. section was returned to OPERABLE service within 30 days.

TMI Technical Specification Section 6.9.4.3.1 requires an annual summary of hourly meteorological data collected over the previous year. This data is contained in the attached Joint Frequency Tables.

In accorc's .:e with Technical Specification Section 6.9.4.3.2, this report includes an annual cummation table and a semi-annual table showing the assessment of the radiation doses due to liquid and gaseous effluents released from the Unit during 1988.

Technical Specification Section 6.9.4.3.3 also requires in part that annually this same report shall include "an assessment of the radiation doses from i radioactive liquid and gaseous effluents to MEMBERS OF THE PUBLIC due to their l activities inside the site boundary (Figures 5-3 and 5-4) during the report period." Since the public does not have unrestricted access to TMI-1, no assessment of this dose is applicable. j TMI Technical Specification Section 6.9.4.3.4 requires an annual assessment of radiation dose to the likely most exposed real individual from reactor releases  !

and other nearby uranium fuel cycle sources (TMI Unit 2) to show compliance with 40 CFR 190 " Environmental Radiation Protection Standards for Nuclear Power Operations." For the purpose of Technical Specification 6.9.4.2, the annual ,

dose to the maximum exposed individual from effluents for comparison to 40 CFR 190, would be no greater than 0.2 mrem. This sums together doses from Unit 1 and Unit 2 and includes the maximum regardless of age group for different pathways. It is further estimated based on the maximum average fenceline dose rate for the year of 26.6 mrem above background per standard month, a person residing at the fenceline for the duration specified in i RG 1.109 for shoreline exposure, would receive no more than 2.5 mrem direct dose, for a maximum potential total dose of 2.7 mrem for both units.  ;

i Sincerely, H. D. Hu 11 Vice President & Director, TMI-1 HDH/DVH/her:1232A cc: W. Russell R. Hernan Resident Inspector Enclosures