ML20237K699

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Effluent & Offsite Dose Rept for Period Apr-June 1987
ML20237K699
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 06/30/1987
From: Standerfer F
GENERAL PUBLIC UTILITIES CORP.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
0080P, 4410-87-L-0132, 4410-87-L-132, 80P, NUDOCS 8709040482
Download: ML20237K699 (33)
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ATTACHMENT I Page 1 of 2 EXECUTIVE

SUMMARY

3 Three Mile Islend Huclear Station Unit 2 )

Effluent and Offsite Dose Report for the Period of April 1,1987 to June 30, 1987 1

I This report summarizes the radioactive liquid and gaseous releases (effluents) from Three Mile Island Unit 2 and the calculated maximum hypothetical radiation exposure to the public resulting from these releases. ,

This report covers the period of operation from April 1 to June 30, 1987. l Radiological releases from the plant are measured by installed plant i monitors sampling the plant stack for gaseous releases and liquid monitors for discharges to the Susquehanna River. These monitors 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 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 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 Exposure to the public from consumption of water and fish withdrawn from the Susquehanna River downstream of the plant is also calculated.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 and consumption.

87090404B2 B70630 0 PDR ADDCK 0500 h

ATTACHf1ENT 1 Page 2 of 2 4410-87-L-0132 Liquid discharges made. during the reporting period April 1 to June 30, 1987 consisted of 0.0004 curies of tritium, 0.00002 curies ~ of strontium-9~0 and .

unidentified beta activity, 0.0000001 curies of cesium-134, and 0.00001 curies of cesium-137.- Unidentified beta activity is treated as strontium-90 for the purpose of dose calculations. These release rates and quantities are consistent with results of previous quarters. The quantities of each radionuclides released are actually up to 1 million times smaller than the normally existing.

environmental quantities that flowed past the plant during the same time period.

During the reporting period April 1 to June 30 of 1987, the maximum hypothetical calculated whole body dose to an individual due to liquid effluents from Three Mile Island Unit 2 was about 0.0002 millirem. The maximum hypothetical calculated dose to any organ of an. individual was 0.0005 millf rem to the bone.

Airborne discharges made during this same time period consisted of 15 curies of tritium, 0.000000003 curies of gross alpha activity, and 0.000003 curies of unidentified beta activity. Unidentified beta activity is, as with liquid effluents, conservatively assumed to be entirely strontium-90. These release -

rates and quantities are also consistent with the results from previous reporting periods. The maximum hypothetical dose to an indi_vidual due to gaseous effluents was about 0.003 millirem to the total body.

The maximum hypothetical whole body dose received by any individual from effluents from the Three Mile Island Nuclear Station Unit 2 for the latest reporting period is 8000 times lower than the dose the average individual in the Three Mile Island area receives from natural background during the same time period. Na'; ural background averages about 25 millirem whole body per quarter in the Three Mile Island area. In addition, average equivalent dose from natural radon is about'90 millirem per quarter.

The doses which could be received by the maximum hypothetical individual are at most 0.02 percent of the guides established by the Nuclear Regulatory Commission.

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ATTACHMENT 4 Page 1 of 2 i 4410-87-L-0132 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-2 during the second quarter reporting period of 1987.

A. Liquid (Individual)

The first two lines present the maximum hypothetical dose to an individual. t Presented are the whole oody 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, l consumption of fish, and standing on the shoreline influenced by TMI ef fl uents. The latter two pathways are considered to be the primary recreational activities associated with the Susquehanna River in the vicinity of TMI. 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.

After calculating the doses to all age groups for all eight organs resul, ting from 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 quarter of 1987 the calculated maximum whole body dose received by anyone would have been 2.2E-4 mrem to an adult. Similarly, the maximum organ dose would have been 5.2E-4 mrem to the bone of an adult.

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) meat, and (7) standing on ,

I contaminated ground.

l Lines 3 and 4 present the maximum plume exposure at or beyond the site I 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 beyond the site boundary. The Dose Summary Table presents the distance in meters to the location in the affected sector ,

j (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.

Direct noble gas plume dose to the maximum individual is shown on lines 5 i and 6. For the second quarter of 1987 there were no releases of noble gases from Unit 2. The doses reported on lines 3, 4, 5 and 6 are therefore zero.

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ATTACHt1ENT 4 Page 2 of 2 4410-87-L-0132 The Iodines and Particulate section described in line 7 represents the maximum exposed organ due to iodine and particulate. This does not include any plume exposure which is 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 quarter 1987 iodines and particulate would have resulted in a maximum dose of 2.7E-3 mrem to the total body of a child residing 500 meters from the site in the W 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 distance of 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 quarter, liquid effluents resulted in a whole body population dose of 3.6E-3 person-rem.

The maximum critical organ population dose to the bone was 1.4E-2 person rem. Gaseous effluents resulted in a whole body population dose of 1.1E-1 person-rem. Maximum organ population dose to the lung, GI, thyroid, liver, and kidney was also 1.1E-1 person-rem.

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  • ATTACHMENT 5 13 Pages 4410-87-L-0132 x

i ETYLUENT AND WASTt DISPOSAL SEMI ANNUAL REPORT January 1, 1987 to June 30, 1987 SUPPLEMENTAL INFORMATION FACILITY _ TMI Unit.? (includino FPICOR IILICENSEE DPR-73-320

1. 'Regulato;y Limits s.- Fission and activation gases:
e. t cu ates, ha).f-lives > B days: "
d. Liquid efflue :a: 3 l

.2.. Maximum Permissible Concentrations l

Provide the MPCs used in determining allowable release rates or concentrations. I

a. Fission and activation gases:
c. r u ates, half-lives '8 days: 10 m, Part 20, Appendix B d.. Liquid affluents:

l

3. Average Energy Provide $he average energy (E) r# the radionuclides mixture in releases of fission and activation gases, if :pplicable 0.253 Mev (Kr-85)
4. Esasurements and Approximations of Total Radioactivity

?rovide the methods used to measure or approximate the total radioactivity in effluents and the methods used to determine radionuclides composition.

a. ' Tission and activation gases: Ge(Li') Spectrometry, Liquid Scintillation
b. Iodines: Ge(Li) Spectrometry
c. Particulate: Ge(Li) Spectrometry, Gas Flow Proportional
d. Liquid effluents: Ge(L1) Spectrometry, Liquid Scintillation
5. Batch Releases Provide the following information relating to batch releases of radioactive materials I in liquid and gaseous effluents.

1987 1987 A. Liquid 1st Quarter 2nd Quarter

1. Number of batch releases: 25 38
2. Total time period for batch release: N/A N/A
3. Mavimum time period for a batch release: N/A N/A
4. Average time period for batch releases: N/A N/A
5. Minimum time period for a batch release: N/A N/A
6. Average stream flow during periods of release of effluent into flowing stream: n/A N/A N/A - tiot Applicable
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'5. Batch Releases (cont.)

1987 1987 B. Gaseous

  • ISt Quarter 2nd Quarter
1. - Number of batch releases: 0 :0
2. Total' time period for batch releases: N/A N/A 3.- Navimum time period for a batch release: N/A N/A.
4. Average time period for batch release: N/A N/A
5. ' Minimum time period for a batch release: N/A N/A
6. Abnormal Releases A. Liquid l'. Number of releases: None None'

'2. Total accivity released: N/A N/A B. Gaseous-

1. Number of releases: None None
2. . Total activity released: . N/A N/A 9

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TABLE 1A EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES i

UNIT 15t 2nd EST. TOTAL

' QUARTER QUARTER ERROR, %

1oR7 1oR7

- . A. Fission & activation gases l.' Total release' Ci -LLD <LLO i 60%
2. Average release rate for period uC1/sec. N/A N/A Tech. Spec. Limit =

3.. Percent of. Tech Spec limit  %

N/A N/A r r- 8 B. Iodines .

_l'. Total Iodine-131 C1 <LL0 <LLD 1 60%

2. Average release rate for period uC1/sec. N/A N/A Tech. Spec. Limit = ;
3. Percent of Tech Spec limit  % 2.40E-2 vCi/sec N/A N/A C. Particulate 1.' Particulate with half-lives 5 e navn C1 5.42E-5 #
3. 08E- 6 - 60%
2. Average release rate for period uci/sec. 6.97E-6 3.92E-7 Tech. Spec. Limit =
3. Percent of Tech Spec limit  %

2.40E-2 pCi/sec

?_90F-? 1 A1F-3

4. Cross alpha radioactivity }

C1 1. 81 E- 9 3.48E-9 D. Tritium

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1. Total release ci 1.07El 1.46El 1 60% 1
2. Averace release rate for period UCi/sec. 1.86E0 1

_) . 33 E 0 Tech. Spec. Limit = '

3. Percent of Tech Spec limit  %

7_ppp_7 4.80E+3 pCi/sec 3 ggp_p for H-3 i

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TABLE IB EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT GASEOUS EFFLUENTS-GROUlTD LEVEL RELEASE Continuous Mode Batch Mode R eased QU TR QU ER QU QU R

1. Fission gases 1

krypton-85 C1 <LLD <LLD <LLD <LLD krypton-85m Ci <LLD <LLD <LLD <LLD krypton-87 Ci eLLD el1 D et10 <Lt D krypton-88 Ci <tLD <t t D I cf f D -f I D xenon-133 Ci <LLD <LLD <LLD <LLD xenon-135 Ci 1

<LLD <LLD t <tLD <lLD xenon-135m C1 ,LLD <LLD <tLD <LLD xenon-138 Ci <LLD <LLD <LLD <LLD Others (specify) Ci <lLD <lLD <LLD <LLD _

C1 C1 l

C1 I Ci '

Unidentified l C1

<tLD <tLD <LLD <LLD Total for period Ci N/A N/A N/A N/A

2. Iodines iodine-131 Ci <tLD <ll D N/A N/A iodine-133 Ci <LLD <LLD N/A N/A fodine-135 Ci <LLD < ll D N/A N/A Total for neriod Ci N/A N/A N/A N/A

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TABLE IB (cont.)

~ EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES Continuous Mode Batch Mode Nuclides. UNIT 1"7 1"7 Released 3 l{y lyj QUARNR. QU ER QUARTER QUARTER

3. Particuates strontium-89 Ci- '

<LLD <llD N/A strontium-90 N/A Ci el I D

~

<t I D -N/A N/A cesium-134 Ci <l I D <LLD N/A

- eesium-137 N/A Ci 8.11E-6 <LLD N/A N/A barium-lanthanuel40 Ci <lLD <LLD N/A N/A Others (specify) thidentified C1 4.61E-5 3.08E-6 N/A N/A l

I

(

e 1 l 4

__ _ _ _ _ _ = - _ _ - _ _ _ _ -

o*

  • TABLE 2A EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES UNIT $

QUARTER QUARTER EST. TOTAL ERROR %

A. Fission and activation products

1. Total releases (not incluaing tritium, cases, alpha) C1 +

3.45E-5 4.

Average aliutec concentration - 2.86E-5 - 60%

durins' reriod pCi/=1 2.93E-12 2.53E-12 Based on 2E-5

3. Percent of applicable limit  % pCi/m1(CS-137) 1.47E-5 1.27E-5  ;

B. Tritium

1. Total release C1
2. Average azlucca concentration 3.69E-6 3.58E 4 16M durine veriod UCi/=1 3.13E-13 3.17E-11 Based on 3E-3
3. Percent of applicable li=it  %

1.04E-8 1.06E-6 C. Dissolved and entrained gases

1. Total r lease Ci <LLD + 60%

J. Average c11ucea concentration <LLD -

durtne period UCi/mi N/A N/A

3. Percent of applicable limit  %

gg gg D. Gross alpha radioactivity

1. Total release Ci Note (1) Note (1) 1 lE. Volume or waste releasea (prior te dilution) liters 1.14E5 9.76E4 1 25%

F. Volume durinn vriod of dilution water used liters 1.18E10 1.13E10 -+ 10"*

j includes only those releases mentioned in Note (1) which were found to contain radioisotope concentration >t LD.

, Note (l)

There were no liquid releases from the radwaste system during the first half of 1987 since this system is flanged off from the discharge lines.

However. Iow concentrations of radionuclides have been occasionally found in the industrial waste stream and are appropriately included in item A2.

Note (2) Refer to Table 5 for Typical LLD values.

Note (3)

The values reported include Sr-90 activity and any activity not specifically identified.

Thus, the reported Sr-90 value represents a constructive estimate (i.e. overestimate) and contains activity fro 11 other beta-gan M emitters which were not positively identified during ronduct of analytical procedures.

_______ _ _ _ _ _ _ _ - - - - - - - - - --- _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - -_ _ - - - - - - - - - - - - - - - - - - - - - - - - - ^ - - ~ - ~

( / TABLE 2B 4 L j EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT LIQUID EFFLiiENTS

)

i Continuous Mode Batch Mode 1

Nuclides- 1987 1997 1967

ti i UNIT 1st Asoe Released 2nd 1st 2nd QUARTER QUARTER QUARTER QUARTER l strontium-89 Ci bee hote(2J 5ee Note (2) nano 6 caae 6 strontium-90 Note (3),Po.6 <llD <L L D C1 eesium-134  ?.57E-5 1.88E-5 Ci cesium-137 <t 1 D 1.14F-7 Ci iodine-131 8.75E-6 9.64E-6 e4

,LLD <tLD cobalt-58 Ci l cobalt-60 <t L D <LLD Ci iron-59 Ci

<t I n <t I n -

rine-65 Ci

<L L D <llD I' managanese-54 <LLD <LLD Ci l chromium-51 Ci

' <LLD <tLD .I (L L D <llD zirconium-niobium-95 C1 molybdenum-99 <I I D.

Ci <L L D technetiu::r-99m C1

<11 D <L L D barium-lanthanum-140 <LLD <LLD Ci eerium-141 <lL D <L L D Ci Other (speeffv) <LLD <LLD C1 C1 C1 C1 C1 C1 (4 ~

Unidentified Ci 1

(LLD <LLD Tots 1 for neriod C1

3. 4 5 E- 5 2.86E-5 _

, xenon-133 Ci xenon-135 <LLD <LLD Ci

_. -L L D -t L D I

-7

l EPICOR January 1, 1987 Through June 30, 1987 TABLE 3A EFTLLT:;T AND WASTE DISPOSAL SEMIANUAL REPORT SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A. Solid waste shipped of f-site for burial or disposal (doc' irradiated fuel)

1. Type of waste UNIT 6 month EST. TOTAL ERROR '--

oeriod ,

4. Spent resans, filter sluages, m- 38.71m) --

avaoorntor bottoms, etc. Ci 25.477 Ci 5%

b. Dry co=pressible vaste, contaminated. m#

eculonent, etc. _,

m N/A N/A

c. Irraalateo cceponenr.4, control m' rod s , etc Ci N/A N/A ma
d. Other (describe) Ci N/A N/A l ,
2. Estimate of ajor nuclide cocoosition (bv t'ipe of waste) e.Shl25 29,9 % l Csl37 26.184 *-

Sr90 3 7,753.g Te125m 7 . 007 %

b. .,

C. ,,

g

4.  ;
I 1
3. Solid Waste Disposition Sunber of Shionents Mode of Transportation Destination 4 Shipments 3 Shipments Tractor-Cask (NuPac 14 /190m) Hn n f n*d - WM ,-4 m .

2 Shipments ITractor-Cask (Hn-100 Series 3) Hanford - Richland, WA 1 Shipment Tractor-Cask (HN-100 Series 2) Hanford - Richland. WA Tractor-Flatbed Hanford - Richland. WA l

3. Irradiated Fuel Shipments (Disposition) i l lumoer of Shi::ments Mode of Tr:nsoortation destination l s.t a .

i

! j I l l

2, Unit 2 LSA .?anuary 1, 1987 through June 30, 1987 TABLE 3A EFFLUINT X;D WASTE DISPOSAL SEMIR;';UAL REPORT SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A. Solid waste shipped of f-site for burial or disposal (6ot 1rraciated fuel) ~

1. Type of waste L51T 6 :onth lEST. TOTAL.

9eriod ERROR *:

a. Spent resins, filter sluages, m*

avanorster Settets. etc. Ci N/A __

N/A

b. Dry co=pressible waste, contaminated ma 299.53 ma eouisment, etc. m 3.901 Ci 51
c. Arraatstec cc:ponents, control m-reds. etc. Ci M/A N/A D3
d. Other (describe) C1 N/A N/A l

I s

2. Esti= ate of =ajor nuclide composition (bv trie of waste)
a. N/A  ;. l
b. Cs137 21.733>

Sr90 34,025~

Pm147 7.682*:

Cs134 3.546?:

Rul06 2.847%

c. N/A =
  • 4
d. 3/A g

1.'

3. Solid Waste Disposition
urber of Shiements Mode of Transportation Destination 6 Shinments Tractor - Closed Van 7 Shipments Hanford - Richland, WA Tractor - Flatbed Hanford - Richland, WA 2 Shipments

'lractor - Cask (tin-100 aeries J) staniord - m eniana, nu 1 Shipment Tractor - Cask (NuPack 14/19Cm> Hantord - Richlana, Wn -]

3. Irradiated Fuel Shipments (Disposition) j luaber of Shipmenta u.ade of Transportation Destination 5/A ~

]

g I i j

___ _____ _ _ _ __ __ _ _ _ - - - - - - - - - _ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~-

R

. /.

E Unit 2 HICs January 1~,1987 through June 30, 1987.

TABLE. 3A EFFLUENT AND WASTE DISPOSAL. SEMIANNUAL REPORT SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A. Solid waste' shipped off-site for burial or disposal .(not irradiated fuel)'

1.-Type'of. waste UNIT 6 h

{SgTgTAL-yg

a. 5 pent resins, filter sluages, m" N/A N/A evar>orster bottees, etc. Ci
b. Dry co=pressible waste, contaminated eeuionent, etc.

m3 Gb n3 c4 3.326 Ci 5%

c. Irractatec components, control m' rods, etc. Ci N/A' N/A-na
d. Other (describe) Ci N/A N/A
2. Esti= ate of major nuclide composition (bv type of waste)
9. N/A  ;; j e

i

b. Sr90 05.42.,-

Csl37 16.765*: 4 Pm147 7.149 Rn106' 2.605:

Pu241

' 2.105%

e. N/n ,,
d. N/A ,,

2

3. Solid Waste Disposition Number of Shiements Mode of Transportation Destination 3 Shinments Tractor - Cask (HN-100 Serico 3) Hanford - Richland, WA 1 Shipment- Tractor.- Cask (HN-100 Serier 2) Hantoro - nictilano, nn
3. Irradiated Fuel Shipments (Disposition)

':umoer of Shittenta Mode of Transportation Destination alh __

r ,

I 1

eD en i

I w . .t c

. FUEL DEBRIS January 1,'1987 Through June 30, 1987

-U 1 TABLE. 3A EFTLL'ENT AND WASTE DISPOSAL SEMIA'CiUAL REPORT SOLID WASTE AND IRRADIATED FUEL' SHIPMENTS A. Solid waste shipped of f-site for burial or disposal '(not irradiated fuel) 3,%h

1. Type of weste 1: NIT -

0 g TgTAL a.-5 pent resins, filter slucges, m#

avaporator bottoms, etc. C1 N/A' .N/A b., Dry co=pressible waste. contaminated, .m#

eouit.ent. etc. m N/A N/A

- c. Irractacea cc:penents, control m' rod s , e t c .

Ci N/A N/A aJ

- d.' Other (describe).- -

Ci N/A ~N/A

2. Esti= ate of major nuclide

-composition (hv t.ne of waste)

'[n. N/A  ;; g

b. N/A ,,

-l

i 5

.i .

c. N/A 2 m

=t

% j

~ l

d. H/A ,,

9-

3. Solid Waste Disposition I Number of Shiements Mode of Transportation Destination N/A-~

-3. Irradiated Fuel Shipments (Disposition) l

\.

l.

'Iumber Of Shipments Mode of TrOnSDortatiJn OeStinatiJn 7 shinments j -12311 Rail Lasx ltnuu-scov122e, auatio

' g i j i

\. _ _ _ _ _

l Attachment Page 1 of 2 TABLE 1 TYPICAL LIOUID EFFLUENT LLD (Lower Limit of Detection) VALUES ASSUMPTIONS: Sample volume = 1 liter = 1000 cc Sample counting time = 1000 set Sample counted with a 25% Ge(Li) for Gamma Emitters ISOTOPE uCi/cc LLD NOTES Gross Alpha a 4E-9 Counted with proportional counter Gross Beta # 7E-8 Counted with proportional counter Tritium H-3 4E-6 Counted with liquid scintillation counter Krypton-85 Kr-85 1E-4 Xenon-131m Xe-131m 2E-5 Xenon-133 Xe-133 1E-6 Xenon-135 Xe-135 3E-7 Chromium-51 C r-151 3E-6 Manganese-54 Mn-54 4E-7 Cobalt-58 Co-58 4E-7 Iron-59 Fe-59 9E-7 Cobalt-60 C0-60 6E-7 Zinc-65 Zn-65 1E-6 Zirconium-95 Zr-95 7E-7 Niobium-95 Nb-95 4E-7 Molybdenum-99 Mo-99 3E-7 Technetium-99m Tc-99m 3E-7 Silver-110m Ag-110m 6E-7 Antimony-125 Sb-125 9E-7 Cesium-134 C s-134 SE-7 Cesium-136 Cs -136 4E-7 Cesium-137 Cs-137 SE-7 Ba rium-140 Ba-140 1E-6 Lanthanum-140 La-140 7E-7 Cerium-141 Ce-141 SE-7 Cerium-144 Ce-144 3E-6 Iodine-131 1-131 3E-7 lodine-133 1-133 4E-7 Phosphorus-32 P-32 1 E -6 These LLD values for liquid i

Iron-55 Fe-55 SE-8 sample analyses of gross alpha, Strontium-89 Sr-89 SE-8 P-32, Fe-55, Sr-89, and Sr-90 Strontium-90 Sr-90 SE-8 are the same as Unit 1 which are Gross Alpha 1E-7 offsite vendor LLD values.

. Attachment Page 2 of 2 TABLE 2 TYPICAL GASEOUS EFFLUENT LLD (Lower Limit of Detection) VALUES ASSUMPTIONS: Sample volume (Marinelli) 1640cc Sample volume (Particulate & Charcoal Filters) 5.7E8cc Sampling Rate 2 cfm or 5.66E4cc/ min Sampling Time 1 week or 1E4 min Sample volume (tritium bubbled thru water) 7.56E5cc Sampling Rate 75cc/ min Sampling Time 1E4 min Sample Counting Time:a & H-3 =20 min; =10 min; =1000sec Sample Counters: emitters 25% Ge(Li) or Proportional Counter H-3 Liquid Scintillation Counter l

l ISOTOPE Ci/cc LLD NOTES Gross Alpha a 1 E-15 Particulate Filter Paper Gross Beta # 1E-14 "

Tritium H-3 1E-10 Air bubbled thru water by a f ritted disc or Fisher Milligan gas washer Krypton-85 Kr-85 SE-6 Marinelli Krypton-85m Kr-85m 2E-8 "

Krypton-87 .sr-87 6E-8 "

Krypton-88 Kr-88 SE-8 "

Xenon-133 Xe-133 4E-8 "

l Xenon-133m Xe-133m 1E-7 "

Xenon-135 Xe-135 2E-8 a Xenon-135m Xe-135m 3E-7 "

Xenon-138 Xe-138 3E-7 "

l Iodine-131 1-1 31 2E-8 "

Iodine-133 1-133 3E-8 "

Iodine-135 I-135 2E-7 "

Iodine-131 1-131 3E-14 Charcoal Filter Iodine-133 1-133 4 E-14 "

Iodine-135 1-135 3E-13 "

Manganese-54 Mn-54 3E-14 Particulate filter Paper Iron-59 Fe-59 8E-14 "

, Cobalt-58 Co-58 3E-14 "

! Cobalt-60 Co-60 SE-14 "

Zinc-65 Zn-65 9E-14 "

Strontium-89 Sr-89 2E-14 "

Strontium-90 Sr-90 2E-14 "

Molybdenum-99 Mo-99 2E-14 "

Ruthenium-103 Ru-103 2E-14 "

Silver-110m Ag-110m 3E-14 "

Cesium-134 Cs-134 4E-14 "

Cesium-137 Cs-137 3E-14 "

Cerium-141 Ce-141 3E-14 "

Cerium-144 Ce-144 9E-14 "

THREE MILE ISLAND 7ATTACHMEilT 6

. JOINT FREQUENCY TABLES '

0 FIRST QUARTER 1987 -

-0H2 SITE: THREE MILE ISLD. 08/14/87 12:10 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD =- 87010101-87033124 STABILITY CLASS: 'A DT/DZ ELEVATION: SPEED;SP100A DIRECTION;DII00A LAPCE:DT_._...__.. t0A ,

1 WIND SPEED (MPH) i' WIND DIRECTION 1-3 47 8-12 13-18 19-24 >24 TOTAL N 7 8' 10 10 4 0 39 l

NNE 3 2 5 2 0 0 12 NE O O O 0 0 0 0 ENE O 2 0 0 0 0 2 h

E 3 3 0 0 0 0 6 i 2 7 0 0 0 0 9 ESE SE 5 9 0 0 0 0 14

.SSE 4 2 0 0 0 0 6 S 2 3 1 0 0 0 6 SSW 4 8 4 0 0 0~ 16  ;

SW 6 5 1 0 0 0 12 -

WSW 7 1 0 0 0 0 8 W 3 2 4 5 3 0 17 l l

WNW 3 8 16 3 0 0 30 -

NW 8 15 20 8 0 0 51 NNW 11 26- 25 20- 3 0- 85 -

j. _________________________ ____...__..._________ ..________.___ $

TOTAL 68 101 86 48 10 0 313 i ______________ ________.. ____ ._________.____________________ i f PERIODS OF CALM (HOURS): 0 VARIABLE DIRECTION 95 HOURS OF MISSING DATA: 18 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87010101-87033124 STABILITY CLASS: B DT/DZ ELEVATION: SPEED:SP100A DIRECTION:DIl00A LAPSE:DT150A WIND SPEED (MPH)

WIND DIRECTION 1-3 4-7 8-12 13-18 19-24 >24 TOTAL N O 2 3 8 2 0 15 O O O O O O O NNE 0 NE O 2 0 0 0 2 ENE O 1 0 0 0 0 1 E 3 1 1 0 0 0 5 ESE 1 3 0 0 0 0 4 SE 1 3 1 0 0 0 5 SSE 1 3 1 1 0 0 6 S 1 0 1 0 0 0 2 SSW 0 2 2 1 0 0 5  ;

SW 3 1 0 0 0 0 4 i WSW 0 0 0 0 0 0 0 W 1 1 3 6 2 0 13 J WNW 1 3 4 8 0 0 16 1 0 10 7 2 0 20 NW 2 23 NNW 3 0 8 6 4 16 22 34 37 10 2 121 TOTAL PERIODS OF CALM (HOURS): 0 VARIABLE DIRECTION 20 18

_ HOURS OF MISSING DATA: .

________-_-____a

THREE MILE ISLAND , ATTACHMENT 6

' JOINT FREQUENCY TABLES Page 2 of 6 l FIRST QUARTER 1987. 4410-87-L-0132 1

. SITE: THREE MILE ISLD.

08/14/87 12:14 j HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87010101-87033124  !

STABILITY CLASS: C DT/DZ ,

bb!!b!fs[__...b$ 1! bbb._ IbbNb..bb$bbI!bbbb.....

WIND SPEED (MPH)

WIND >24 TOTAL DIRECTION 1-3 4-7 8-12 13-18 19-24 ... __.._

......... l 1 0 1 0 0 2 N O i O O O 1 0 0 1 NNE e e e i NE e e e e l O 1 0 0 0 0 1 ENE 0 0 2 E O 2 0 0 1 1 0 0 0 0 2 ESE 0 0 0 3 SE O 2 1 O O O O O O O SSE 0 0 0 1 S 0 1 0 0 1 0 0 0 0 1 SSW 0 0 0 0 /

SW 0 0 0 '

0 0 0 0 0 0 0 WSW 1 1 0 5 W 1 1 1 0 1 1 3 0 0 5 -

WNW 5 2 0 9 W 0 1 1 10 0 1 3 3 1 2

1 NNW 3 2 13 7 14 4 2 42 p

TOTAL 0

PERIODS OF CALM (HOURS):

VARIABLE DIRECTION 5 HOURS OF MISSING DATA: 18 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87010101-87033124 STABILITY CLASS: D DT/DZ ELEVATION: SPEED:SP100A DIRECTION:DIl00A LAPSE:DT150A WIND SPEED (MPH)

WIND DIRECTION 1-3 4-7 8-12 13-18 19-24 >24 TOTAL N 2 15 12 10 2 0 41 7 11 2 1 0 0 21 NNE 5 16 5 0 0 0 26 NE ENE 4 13 0 1 0 0 18 E 7 17 1 0 0 0 25 ESE 2 12 12 6 0 0 32 11 21 14 3 0 0 49 SE

' SSE 4 5 6 3 0 0 18 S 5 6 10 1 0 0 22 SSW 2 1 4 0 0 0 7 2 4 0 0 0 0 6 SW WSW 4 2 3 0 0 0 9 1 6 14 15 1 0 37 W 99 WNW 0 6 24 57 11 1 3 16 34 33 19 1 106 NW . 78 NNW 0 16 27 17 10 8 59 167 168 147 43 10 594 TOTAL PERIODS OF CALM (HOURS): 0 VARIABLE DIRECTION 92 HOURS OF MISSING DATA: 18

i THREE MILE ISLAND ATTACHf'ENT 6 JOINT FREQUENCY TABLES Page 3 of 8 FIRST QUARTER 1987 4410-87-L-013-08/14/87 12:18 l SITE: THREE MILE ISLD. l HOURS AT EACH WIND SPEED AND DIRECTION -

87010101-87035124 PERIOD OF RECORD =

STABILITY CLASS: E DT/DZ SPEED:SP100A DIRECTION:DIl00A LAPSE:DT150A ELEVATION:

WIND SPEED (MPH) j I

WIND >24 TOTAL l DIRECTION 1-3 4-7 8-12 13-18 19-24 ... ..... 1 4 52 22 3 1 0 82 .(

N 5 0 0 0 28 9 NNE 9 14 7 5 0 0 0 0 12 NE 0 0 0 15 ENE 6 9 0 7 12 4 0 0 0 23 E 0 0 19 2 13 3 1 ESE 0 0 0 32 5 24 3 SE 0 0 13 3 7 1 2 l SSE 0 0 21 3 10 6 2 I S 0 21 8 12 -0 1 0 SSW 0 0 33 SW 9 15 9 0 7 18 5 0 0 0 30 WSW 0 0 49 -

4 25 17 3

.W 73  :

7 16 37 13 0 0 WNW 29 10 108 NW 7 15 46 1

} 30 25 18 2 0 88 i 13 g

NNW 101 277 183 72 13 1 647 TOTAL 0

PERIODS OF CALM (HOURS):

VARIABLE DIRECTION 125 HOURS OF MISSING DATA: 18 1

HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87010101-87033124 STABILITY CLASS: F DT/DZ ELEVATION: SPEED:SP100A DIRECTION:DIl00A LAPSE:DT150A WIND SPEED (MPH)

WIND >24 TOTAL DIRECTION 1-3 4-7 8-12 13-18 19-24 --- .....

6 18 2 0 0 0 26 N 0 0 3 NNE 1 2 0 0 3 1 0 0 0 0 4 NE 0 0 7 ENE 5 2 0 0 5 4 0 0 0 0 9 i E 0 10 l ESE 6 4 0 0 0 0 0 0 0 13 i SE 9 4 9 8 0 0 0 0 17 SSE 0 11 S 11 0 0 0 0 SSW 7 7 0 0 0 0 14 5 3 0 0 0 0' 6 SW 0 0 16 WSW 9 7 0 0 l

2 5 3 0 0 0 10 W 0 l

l WNW 3 2 2 0 0 7  !

6 5 0 0 0 0 11 NW 0 0 42 4 23 13 2 NNW 91 93 20 2 0 0 206 TOTAL PERIODS OF CALM (HOURS): 0 VARIABLE DIRECTION 85 HOURS OF MISSING DATA: 18

! a THREE MILE ISLAND ATTACHMENT 6

. , JOINT FREQUENCY TABLES Page 4 of 4 4410-87-L-0132 FIRST QUARTER 1987 SITE: THREE MILE ISLD. 08/14/87 12:21 BOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87010101-87033124 STABILITY CLAS8: G DT/DZ ELEVATION: SPEED:SP100A DIRECTION:DIl00A LAPSE:DT150A WIND SPEED (MPH)

WIND DIRECTION 1-3 4-7 8-12 13-18 19-24 >24 TOTAL N 3 5 1 0 0 0 9 NNE 1 1 0 0 0 0 2 NE 3 0 0 0 0 0 3 ENE 3 0 0 0 0 0 3 E 4 1 0 0 0 0 5 j ESE 6 1 0 0 0 0 7

. SE 13 2 0 0 0 0 15 SSE 22 1 0 0 0 0 23 S 26 1 0 0 0 0 27 SSW 20 15 0 0 0 0 35 SW 13 4 0 0 0 0 17 WSW 8 8 0 0 0 0 16

. W 11 4 0 0 0 0 15

  • WNW 7 1 0 0 0 0 8 NW 6 7 1 0 0 0 14 .

k NNW 6 13 1 0 0 0 20 ,

-I ,

i TOTAL 152 64 3 0 0 0 219 i

PERIODS OF CALM (HOURS): 0 VARIABLE DIRECTION 94 HOURS OF HISSING DATA: 18 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87010101-87033124 FTABILITY CLASS: ALL DT/DZ ELEVATION: SPEED:SP100A DIRECTION:DIl00A LAPSE:DT150A WIND SPEED (MPH)

WIND DIRECTION 1-3 4-7 8-12 13-18 19-24 >24 TOTAL N 22 101 50 32 9 0 214 ,

NNE 21 30 12 4 0 0 67 NE 18 24 5 0 0 0 47 ENE 18 28 0 1 0 0 47 E 29 40 6 0 0 0 75 ESE 20 41 15 7 0 0 83 SE 44 65 19 3 0 0 131

< SSE 43 26 8 6 0 0 83 S 48. 21 18 3 0 0 90 SSW 41 46 10 2 0 0 99 SW 38 30 10 0 0 0 78 WSW 35 36 8 0 0 0' 79 W 23 44 42 30 7 0 146 WNW 21 37 84 84 11 1 238 NW 31 59 112 82 33 2 319 NNW 37 109 102 66 20 12 346 TOTAL 489 737 501 320 80 15 2142 PERIODS OF CALM (HOURS): 0 VARIABLE DIRECTION 516 HOURS OF MISSING DATA: 18

THREE MILE ISLAND ATTACHttENT 6

' JOINT FREQUENCY TABLES Page 5 of 8

,

  • 4410-87-L-0132 SECOND QUARTER 1987 07/29/87 13:37 SITE: THREE MILE ISLD. j HOURS AT EACH WIND SPEED AND DIRECTION i PERIOD OF RECORD = 87040181-87063024 I STABILITY CLASS: A DT/DZ l

SPEED:SP100B DIRECTION:DIl00B LAPSE:DT150B ELEVATION:__..............................................._....----......

WIND SPEED (MPH)

WIND >24 TOTAL DIRECTION 1-3 4-7 8-12 13-18 19-24 --.. ... --...

... ... .... ..... I 1 0 0 19 '

3 10 5 7 N

2 3 2 0 0 0 NNE 1 0 0 17 1 9 6 16 NE O 8 8 0 0 0 ENE 6 5 1 0 18 -'

2 4 E 17 3 0 0 25 1 4  ;

ESE 1 5 7 0 0 0 13 l

SE O 1 1 3 0 0 5 SSE 0 0 6 3 2 0 1 30 S

10 7 0 0 SSW 0 13 0 0 21 l 2 11 6 2  !

SW 4 1 0 0 0 11 1 WSW 6 0 23 5 10 8 0 0 '

W 0 0 37 5 15 16 1 -

WNW 24 7 0 0 66 7 28 NW 34 1 0 376 45 150 146 l ..............................................................

TOTAL 0

PERIODS OF CALM (HOURS):

VARIABLE DIRECTION 88 l 8

HOURS OF MISSING DATA:

HOURS AT EACH WIND SPEED AND DIRECTION 1 PERIOD OF RECORD = 87040101-87063024 STABILITY CLASS: B DT/DZ SPEED:SP100B DIRECTION:DIl00B LAPSE:DT150B ELEVATION:.--................-

WIND SPEED (MPH)

WIND 8-12 13-18 19-24 >24 TOTAL DIRECTION 1-3 4-7 .... ..... --... ... .....

......... 0 0 4 1 1 1 1 i N 3 ~0 0 0 0 3 NNE O 0 0 5 O 5 0 0 NE 2 2 0 0 0 4 ENE O 0 21 1 2 8 9 1 E 7 1 1 0 12 1 2 ESE 3 4 1 0 0 8 SE O 0 0 6 1 3 1 1 l

SSE 1 3 0 0 0 5 S 1 5 1 0 0 10 1 3 SSW 1 1 0 14 SW 0 11 1 0 0 4 2 1 1 0 WSW 5 4 0 0 0 11 W 2 0 17 r

5 1 8 3 0 l WNW 8 4 2 0 21 3 4 13 NW 3 3 3 0 0 4

NNW 22 50 56 25 5 0 158 TOTAL 0

PERIODS OF CALM (HOURS):43 VARIABLE DIRECTION 8 HOURS OF MISSING DATA:

THREE MILE ISLAND ATTACH.'1ENT 6 JOINT FREQUENCY TABLES Page 6 of 8 SECOND QUARTER 1987 4410-87-L-0132 07/29/87 13:37 SITE: THREE MILE ISLD.

BOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87040181-87063024 STABILITY CLASS: C DT/DZ SPIID:SP100B DIRECTION:DIl00B LAPSE:DT150B ELEVATION:

WIND SPEED (MPH)

WIND >24 TOTAL DIRECTION 1-3 4-7 B-12 13-18 19-24 . . --- _

O 4 2 0 0 0 6 N

O 1 1 0 0 0 2 NNE 3 1 0 0 0 5 NE 1 2 0 0 0 0 2 ENE O O 1 5 2 0 0 8 E 5 1 0 0 6 ESE O O O 2 2 1 0 0 5 SE 0 0 2 SSE 1 0 0 1 0 4 0 1 0 0 5 S 0 0 0 6 SSW 0 1 5 0 5 1 2 2 0 0 SW 0 0 0 2 WSW 0 0 2 2 1 3 0 0 0 6 W 8 3 0 0 15 .

1 3 WNW 4 2 0 0 8 1 1 NW 4 4 0 0 10 e 2

j. -.....--............._......._.....--.................._. 93 ._-.

NNW '

7 27 44 15 0 0 1

TOTAL ~

0 PERIODS OF CALM (HOURS):

VARIABLE DIRECTION 10 8

HOURS OF MISSING DATA:

BOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87040101-87063024 STABILITY CLASS: 1) DT/DZ ELEVATION: SPEED:SP100B DIRECTION:DIl00B LAPSE:DT150B WIND SPEED (MPH) 1 WIND >24 TOTAL DIRECTION 1-3 4-7 8-12 13-18 19-24 ... .....

14 11 1 0 0 33  ;

7 N

11 13 0 0 0 27 NNE 3 19 11 0 0 0 36 NE 6 5 21 13 2 0 0 41 ENE 3 0 0 62 E 7 23 29 6 42 56 5 0 0 109 ESE 3 1 0 54 SE 4 24 22 10 3 1 0 0 18 SSE 4 1 5 6 0 0 0 12 S 4 0 0 50 SSW 1 21 24 12 0 1 1 39 SW 9 16 10 1 1 0 0. 26 WSW 14 7 13 15 2 0 0 37 W 8 1 0 42 WNW 8 14 11 15 8 15 3 0 46 NW 5 8 9 2 0 0 23 4

NNW 266 244 47 6 1

.. ..--..... 655 I

91 TOTAL 0

PERIODS OF CALM (HOURS): i VARIABLE DIRECTION 142 '!

HOURS OF MISSING DATA: 8

THREE MILE ISLAND ATTACHMENT 6

  • JOINT FREQUENCY TABLES ap 7 of 8 SECOND QUARTER 1987 4410-87-L-0132 07/29/87 13:41 SITE: THREE MILE ISLD.

HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87040181-87063024 STABILITY CLASS: E DT/DZ ELEVATION: SPEED:SP100B DIRECTION:DIl00B LAPSE:DT150B WIND SPEED (MPH)

WIND >24 TOTAL DIRECTION 1-3 4-7 8-12 13-18 19-24 ... .....

9 29 13 0 0 0 51 N

7 20 3 0 0 0 30 NNE 0 0 0 33 9 23 1 30 NE 10 16 4 0 0 0 ENE 21 5 0 0 0 42 E 16 21 8 12 1 0 0 0 ESE 2 0 0 0 12 4 6 SE 0 0 0 0 7 4 3 SSE 7 8 5 0 0 0 20 S

32 24 4 0 0 70 SSW 10 64 14 43 6 1 0 0 SW 28 2 0 0 0 40 l

WSW 10 0 37 I

10 19 8 0 0 W 13 3 1 0 48 WNW 8 23 .;

  • 7 15 12 7 0 0 NW 6 0 0 3's a NNW 6 24 1 ,

i 322 105 16 1 0 583 l TOTAL 139 3

0 PERIODS OF CALM (HOURS):

VARIABLE DIRECTION 196 8

HOURS OF MISSING DATA:

HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87040101-87063024 STABILITY CLASS: F DT/DZ ELEVATION: SPEED:SP100B DIRECTION:DIl00B LAPSE:DT150B WIND SPEED (MPH)

WIND >24 TOTAL DIRECTION 1-3 4-7 8-12 13-18 19-24 ._. .._..

2 3 1 9) 0 0 6 H

2 1 0 0 0 0 3 NNE 2 1 0 0 0 0 3 NE 0 0 0 9 4 5 0 ENE 0 0 0 0 15 7 8 E 1 0 0 0 13 9 3 ESE 0 0 0 0 7 SE 6 1 15 11 4 0 0 0 0 SSE 0 0 0 0 11 8 3 S

7 2 0 0 0 15 SSW 6 8 0 0 0 0 23 SW 15 0 22 16 6 0 0 0 WSW 0 0 0 0 24 W 12 12 10 3 0 0 0 0 13 '

- WNW 2 0 0 0 17 NW 5 10 17 7 9 1 0 0 0

.. ............ ...122......................

NNW 84 7 0

...0 ............. 0 213 _

TOTAL l .... ............_.... _______....._ 0 PERIODS OF CALM (HOURS):

VARIABLE DIRECTION 109 8

HOURS OF MISSING DATA:

- _ . - - - ~ ------__._m__ _ _ _ _ . _ _ _ _ _ __

ATTACHMENT 6 THREE MILE ISLAND Page 8 of 8 JOINT FREQUENCY TABLES 4410-87-L-0132 SECOND QUARTER 1987 l

L SITE: THREE MILE ISLD. 87/29/87 13:47 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD-= 87840191-87063024' l'

l STABILITY CLASS:- G DT/DZ ELEVATION: SPEED:SP190B DIRECTION:DI190B LAPSE:DT150B WIND SPEED (MPH) l WIND j DIRECTION 1-3 4-7 8-12 13-18 19-24

>24 TOTAL N 5 1 0 0 0 0 8 NNE 2 0 9 9 0 9 2 NE O 1 0 9 9 0 1 ENE 2 2 0 S e 0 4 E 3 4 1 0 0 0 8  !

ESE 2 0 9 8 0 0 2 SE 6 0 0 0 0- 9 6 SSE 2 0 0 0 8 9 2 S 7 1 8 9 0 0 8 i SSW 12 2 9 9 9 0 14 (

SW 7 0 0 0 9 9 7 l i

WSW 6 1 0 0 0 0 T W 8 3 0 0 0 0 11 i WNW 6 2 0 0 0 0 8 NW 7 0 0 0 0 2 7 -

i NNW 2 3 0 0 0 0 5 e

.....____4..

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

TOTAL 77 20 1 0 e s 98 n ....__...____....... .............______..___.._......._____..

/ PERIODS OF CALH(HOURS): 0 VARIABLE DIRECTION 65 HOURS OF MISSING DATA: 8 HOURS AT EACH WIND SPEED AND DIRECTION PERIOD OF RECORD = 87040181-87063024 STABILITY CLASS: ALL DT/DZ ELEVATION: SPEED:SP100B DIRECTION:DIl00B LAPSE:DT150B WIND SPEED (MPH)  !

WIND >24 TOTAL DIRECTION 3-3 4-7 8-12 13-18 19-24 j

N 2'i 62 33 3 0 0 125 16 39 19 0 0 0 74 NNE 0 0 100 NE 19 61 19 1 21 56 27 2 0 0 106 ENE 0 174 36 63 54 19 2 E 0 188 ESE 27 63 87 10 1 21 41 37 5 1 0 105 SE 0 55 SSE 23 21 5 6 0 27 24 14 2 0 0 67 S

30 79 70 16 0 0 195 SSW 2 1 173 48 91 27 4 SW 0 0 112 WSW 54 50 7 1 46 63 38 2 0 0 149 W 2 0 180 WNW 43 61 56 18 ,

35 73 58 35 5 0 206 NW 0 0 167 NNW 30 72 52 13 50'3 I 603 137 13 1 2176

...___..............____'919,,

TOTAL _...... ________ ......._.............

PERIODS OF CALM (HOURS): 0 VARIABLE DIRECTION 653 -1 HOURS OF MISSING DATA: 8

GPU Nuclear Corporation g gf Port Office Box 480 Route 441 South Middletown, Pennsylvania 17057 0191 717 944 7621 TELEX 84 2386 Writer's Direct Dial Number:

(717) 948-8461 4410-87-L-0132 Document ID 0080P August 28, 1987 ,

US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Dear Sirs:

Three Mile Island Nuclear Station, Unit 2 (TMI-2)

Operating License No. DPR-73 Docket No. 50-320 Quarterly Dose Assessment Report - Second Quarter 1987; Semi-Annual Radioactive Effluent Release Report Per the requirements of Section 5.6.1.C of Appendix B to the Recovery Technical Specifications, the quarterly report of radiological releases and estimated doses is submitted. Attachment 1 is an executive summary of TMI-2 effluents and doses reported in Attachments 2 and 3. Attachment 2 presents a summary of releases listing estimates of total activity and the time rate of release of each nuclide. Attachment 3 is the Dose Summary Table which provides a summary of the maximum hypothetical and/or real doses to individuals and the general population resulting from TMI-2 activities.

Attachment 4 is an interpretation of the Dose Summary Table. Doses were extracted from calculational models and represent the bounding dose for all cases. The reporting period includes April 1, 1987, through June 30, 1987.

Also enclosed as Attachment 5, in accordance with the requirements of 10 CFR 50.36a(a)(2), is the Radioactive Effluent Release Report for TMI-2. Table 18,

" Effluent and Waste Disposal Semi-Annual Report, Gaseous Effluent-Elevated Releases," is not included as release paths.at TMI-2 do not meet Regulatory Guide 1.109 definition of an elevated release. Attachment 6 presents the Joint Frequency Tables for THI-2. These effluent reports cover the period January 1, 1987, through June 30, 1987.

,-L Y$

GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation P j

i l

Document Control Desk August 28, 1987 4410-87-L-0132 j Dose summaries and effluent releases for the previous quarter of the 1987 calendar year were submitted via GPU Nuclear letter 4410-87-L-0087.

Sincerely, dd <

F. R. Standerfer Director, TMI-2 FRS/DHW/eml  ;

Attachments cc: Regional Admini:;trator, Region 1 - W. T. Russell Director, TMI-2 Cleanup Project Directorate - Dr. W. D. Travers f

i l

I l

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