ML20079P910
| ML20079P910 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 01/25/1984 |
| From: | Kemper J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8401310395 | |
| Download: ML20079P910 (14) | |
Text
t PHILA.DELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699
-190I PHILADELPHIA PA.19101 JOHN S KEMPER t11C E-PR ESID E N T E NGINEE RONG ANO RESE A nCM Jg 2 51989 Mr. A. Schwencer, Chief Docket Nos.:
50-352 Licensing Branch No. 2 50.-353 Division of Licensing U. S. Nuclear Regulatory Commission Fashington, D.C.
20555
SUBJECT:
Limerick Generating Station, Units 1 and 2 Radiological Environmental Monitoring Program (RDiP)
REFERENCE:
Telecon Between Bob Martin, et. al. and Philadelphia Electric Company on January 20, 1984
Dear Mr. Schwencer:
A new goat farm has been established in the Limerick Generating Station (LGS) area since the agricultural land use data presented in the EROL were compiled. A 10CFR50 Appendix I dose analysis for this farm using the GASPAR computer program shows that this farm has a higher dose potential than any of the previously identified dairy or goat farms.
The largest dose contribution to any organ results from the goat-milk-thyroid pathway to an infant. The newly calculated inf ant dose from all real pathways is 10.55 mrem / year for both units. This value is still significantly less than the 10CFR50, Appendix 1 design objective for 2 units of 30 mremiycar.
Enclosed for your information are the draf t page changes to the LGS Environmental Report Operating License Stage (EROL). These changes will appear exactly as shown in the EROL revision scheduled for February,1984, Sincerely, f
Enclosure Copy to: See Attached Service List 00Y 8401310395 840125
'[
PDR ADOCK 05000352 A
cc: Judge Lawrence Brenner (w/o enclosure)
Judge Peter k. Morris (w/o enclosure)
Judge Richard F. Colc (w/o enclosure)
Troy B. Conner, Jr., Esq.
(w/o enclosure)
Ann P. Hodgdon, Esq.
(w/o enclosure)
Mr. Frank R. Romano (w/o enclosure)
Mr. Robert L. Anthony (w/o enclosure)
Mr. Marvin I. Lewis (w/o enclosure)
Charles W.
Elliot, Esq.
(w/o enclosure)
Zori G. Ferkin, Esq.
(w/o enclosure)
Mr. Thomas Gerusky (w/o 2nclosure)
Director, Penna. Emergency (w/o enclosure)
Management Agency Mr. Steven P. Hershey (w/o enclosure)
Angus Love, Esq.
(w/o enclosure)
Mr. Joseph H. White, III (w/o enclosure)
David Wersen, Esq.
(w/o enclosure)
Robert J.
Sucarman, Esq.
(w/o enclosure)
Spence W.
Perry, Esq.
(w/o enclosure)
Jay M. Gutierrez, Esq.
(w/o enclosure)
Atomic Safety & Licensing (w/o enclosure)
Appeal Board Atomic Safety & Licensing (w/o enclosure)
Board Panel Docket & Service Section (w/o enclosure)
Martha W.
Bush, Esq.
(w/o enclosure)
James Wiggins (w/o enclosure)
~
) ] ] ~Js~ ~v;,a LGS EROL e? a m; J TABLE 2.1-24 LOCATION OF NEAREST (*) MILK COW, MILK GOAT, RESIDENCE, SITE BOUNDARY, AND VEGETABLE GARDEN (3)
(DISTANCE IN METERS)
Milk Milk Site Vegetable (a)
Sector Cow Goat Residence Boundary Garden N
8534 9:4 884 914 6980 792 792 792 NNE 1052 792 1052 NE 4267 823 792 823 ENE 6706 1021 762 1021 E
6980 ESE 4511 1770(4) 945 762 945 l
SE 3597 1554 762 SSE 7376 1770 1006 1770 S
3627 5654 1341 762 1341 SSW 3048 1524 762 1524 1006 884 1006 SW 2835 1173 853 1173 WSW 2134 975 853 975 W
4755 1128 792 1128 WNW 1128 762 1128 NW 1204 884 1204 i
NNW (1) Nearest within 5 miles.
l l
(a) It is assumed that the nearest vegetable garden is located at the nearest residence in each sector.
(3) Radiation Management Corporation, " Agricultural Land Use Survey in the Vicinity of Limerick Generating Station,"
l RMC-TR-12, June 1979.
Survey based on data collected in 1975-1976.
t-(4) This goat farm has been established since the RMC
" Agricultural Land Use Survey in the Vicinity of Limerick Generating Station," RMC-TR-12, June, 1979.
17 oz/s+
Rev. N,.D;VtT*
n -%M Ng,h LGS EROL I
TABLE 2.1-25E LOCATION OF GOAT PASTURES WITHIN 5 MILES OF LIMERICK GENERATING STATION UNITS 1 AND 2(2)
Distance From Vents Sector (Feet)
(Meters)
NNE 22,900 6,980 ESE 15,600 4,755 S
18,550 5,654 ESE(2) 5,800 1,770 l
(1) Radiation Management Corporation, " Agricultural Land Use Survey in the Vicinity of Limerick Generating Station,"
RMC-TR-12, June 1979.
Survey based on data collected in 1975-1976.
(2)
This goat farm has been established since the RMC
" Agricultural Land Use Survey in the Vicinity of Limerick Generating Station," RMC-TR-12, June, 1979.
I Rev.e,,02fBl%
87 C~ --
LGS E*tOL E#9 IB PI*
j nm O
l!.Nd 5.2.2 RADIOACTIVITY IN THE ENVIRONMENT The environmental concentrations of radionuclides released by LGS to both the atmospheric and aquatic environments have been calculated for all significant media that are directly or indirectly involved in exposures to man, and biota other than man.
These calculations have been made at the offsite location where concentrations of the important radionuclides, resulting in doses to man, are expected to be the highest for both atmospheric and aquatic releases.
The results are listed in Tables 5.2-1 and 5.2-2.
For atmospheric releases, the location was the nearest site boundary in the ESE sector, about 2500 feet from the LGS enclosure vents, and a f arm 5,800 feet ESE of the LGS enclosure l
vents.
For aquatic releases, the location was the point of minimal initial dilution of the liquid discharge outfall area.
The concentrations considered are the maximum average annual concentrations to be expected, and were calculated using the equations and assumptions presented in U.S. Nuclear Regulatory Commission Regulatory Guide 1.109 (Ref 5.2-1).
These equations, described in Appendixes 5.2A and 5.2B, assume accumulation of radioactivity by various environmental media.
The concentrations presented in Table 5.2-1 and 5.2-2 include bioaccumulation in living organisms, and physical accumulation in soils and sediment.
The meteorological model utilized is described above.
Receiving water is used by humans as drinking water in a 50-mile radius of LGS, and is distributed from five locations.
Expected concentrations of the important radionuclides resulting in doses to man at thesc points are presented in Table 5.2-3.
Table 5.2A.1 (Appendix 5.2A) lists the names of the locations calculated, along with dilution factors, transit times, and river uses.
Figure 5.2A-1 (Appendix 5.2A) shows the locations along the Schuylkill River at which these concentrations were calculated.
5.2.2.1 Lono-Term Diffusion Estimates 5.2.2.1.1 Radioactivity Released to the Atmosphere Radionuclides will be routinely emitted to the atmosphere from three locations at the LGS.
For the purpose of this evaluation, these three sources, the turbine enclosure vent, and the reactor enclosure vents for Units 1 and 2, have been considered as a single source originating from one point located midway between the three vent locations.
l Estimates of annual average X/O and D/0 have been made for receptor locations out to 50 miles in each directional sector.
These values are presented in the following tables:
^
Table 5.2-4 Annual X/0 - uncorrected 5.2-3
~- - - -.- - -.
u-LGS EROL 7 % M q r m -a b
(
'5.2.4.2 Gaseous Pathways Individual doses through the atmospheric environment from gaseous effluents of LGS were calculated according to the guidelines in USNRC Regulatory Guide 1.109 (Ref 5.2-1).
A computer program, GASPAR, which incorporates the computational models described in Regulatory Guide 1.109, was obtained from the NRC staff and used to perform the dose calculations according to the models described in Appendix 5.2B.
Table 5.2-13 lists the annual' doses to all organs through each pathway, by age group, at the location where the maximum total dose to any organ exists.
The largest dose contribution to any organ resulted from goat-milk-thyroid pathway, at a farm with its goat pasture located about 5,800 feet ESE of the LGS building vents.
l The organ receiving the largest dose was the infant thyroid, which was calculated to receive a total of 10.55 mrem / year from all real l
pathways listed in Table 5.2-13.
Approximately 98% of this total dosa resulted from the goat-milk pathway, 0.6% from inhalation of air particulates and radioiodines, 1.4% from external exposure to noble gases, and less than 0.03% from exposure to activity deposited on the ground.
The location where a real person would receive the largest calculated total body dose resulting from exposure to noble gases released from LGS is a residence located about 3100 feet ESE of the LGS enclosure vents.
This dose was calculated'to be 0.46 mrem / year to the total body.
The location where a person would receive the largest calculated dose to the skin resulting l
from exposure to noble gases released from LGS is the same f
residence location.
This dose was calculated to be 0.90 mrem / year to the skin.
l The maximum calculated annual dose to the total body resulting j
from exposure to noble gases at a hypothetical residence location was 0.57 mrem / year, and the maximum annual dose to the skin was 1.1 mrem / year.
These calculated doses resulted at the nearest site boundary in the ESE sector, about 2500 feet from the LGS enclosure vents, which is near the worst case real residence discussed above.
The maximum calculated gamma dose in air at any location offsite was 0.86 mrad / year.
This occurred at the site boundary about 2500 feet ESE of the LGS enclosure vents.
The maximum calculated beta dose in air at any location offsite occurred at the same location, and was 0.59 mrad / year.
Calculation of annual doses at hypothetical dairy farm locations, using conservative worst-case assumptions for pasture grazing, showed that there are no sectors in which there are locations that could result in doses greater than 15 mrem / year / reactor
(
through all pathways, if dairy cows were actually located there.
17 84 5.2-15 Rev. %,
0 2N-
LGS EROL (Prge 2 of 2) h[7$'jx m,3
"'ac 2 y
TABLE 5.2-1 (Cont'd)
MAXIMUM CALCULATED RADIONUCLIDE CONCENTRATIONS IN THE ENVIRONMENT FROM ATMOSPHERIC RELEASES LOCATION: FARM 5,800 FEET ESE OF LGS ENCLOSURE VENTS l
AVERAGE ANNUAL CONCENTRATIONS GOAT MILK (pci/1)
I 131 2.17
-1 I 133 2.76 x 10 Cr 51 4.22 x 10-4 Mn 54 1.30 x 10-4 Fe 59 2.07 x 10-45 Co 58 7.11 x 10 3 Co 60 1.64 x 10 3 2n 65 3.17. x 10 4 Sr 89 9.55 x 10--5 Sr 90 7.02 x 10 -8 2r 95 5.30 x 10-5 Sb 124 1.22 x 10 -2 Cs 134 5.71 x 10 Cs 136 2.22 x 10-3
-2 Cs 137 9.96 x 10 -5 Ba 140 2.91 x 10-5 Ce 141 1.82 x 10 5.16 x 10++1 H
3 1
C 14 5.89 x 10 17 84 Rev. 49, 0 2/99-
1 IBS EROL TABLE 5.2-13 CAILUIATED ANNtW. DOSES FOR ALL REAL PATIIWAYS AT 'ITIE IOCATION OF MAXIMP1 OFFSITE DOSE TO ANY OiGN RESULTING FROM A'IMCSPilERIC RELEASE FROM IGS UNITS 1 AND 2 (mrom/yr)
PATilWAY T BODY GI-TRACP BONE LIVER KIDNEY THYBOID IUNG SKIN PLUME 1.83E-01 1.83E-01 1.83E-01 1.83E-01 1.83E-01 1.83E-01 1.85E-01 3.56E-01 GROUND 3.72E-03 3.72E-03 3.72E-03 3.72E-03 3.72E-03 3.72E-03 3.72E-03 4.38E-03 VEGET ADULT 2.52E-02 2.53E-02 1.12E-01 2.54E-02 2.55E-02 1.40E-01 2.43E-02 2.42E-02 TEEN 4.09E-02 4.10E-02 1.89E-01 4.16E-02 4.15E-02 1.37E-01 4.01E-02 3.99E-02 OIIID 9.65E-02 9.60E-02 4.60E-01 9.79E-02 9.74E-02 2.45E-01 9.55E-02 9.53E-02 INFANT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MEAT ADULT 8.78E-03 9.36E-03 4.10E-02 8.87E-03 8.92E-03 4.38E-02 8.48E-03 8.45E-03 TEEN 7.27E-03 7.56E-03 3.46E-02 7.40E-03 7.40E-03 3.26E-02 7.09E-03 7.06E-03 OIIID 1.34E-02 1.34E-02 6.50E-02 1.36E-02 1.36E-02 5.18E-02 1.32E-02 1.32E-02 INFANT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 GOA'IMILK ADULT 1.82E-02 1.29E-02 5.61E-02 2.16E-02 2.45E-02 1.34E+00 1.21E-02 1.15E-02 TEEN 2.84E-02 2.22E-02 1.03E-01 3.81E-02 4.33E-02 2.13E+00 2.16E-02 2.03E-02 OIIID 5.85E-02 4.96E-02 2.53E-01 7.85E-02 8.60E-02 4.23E+00 5.01E-02 4.81E-02 INFANT 1.15E-01 1.00E-01 4.91E-01 1.64E-01 1.66E-01 1.03E+01 1.02E-01 9.86E-02 INHAL Er.j ADULT 1.38E-03 1.38E-03 1.31E-04 1.49E-03 1.63E-03 4.55E-02 1.38E-03 1.29E-03 k'
TEEN 1.41E-03 1.40E-03 1.83E-04 1.57E-03 1.76E-03 5.77E-02 1.43E-03 1.30E-03
[)
OIIID 1.27E-03 1.20E-03 2.47E-04 1.42E-03 1.60E-03 6.85E-02 1.25E-03 1.15E-03 INFANP 7.49E-04 6.80E-04 1.94E-04 9.14E-04 9.54E- 04 6.25E-02 7.30E-04 6.60E-04 Lo h
p l
W L
GBR:mtk 1/20/84-1
p LGS EROL I
h
-Jl"
" u v f ;j j
TABLE 5.2-18 COMPARISON OF MAXIMUM INDIVIDUAL DOSES RESULTING FROM LGS UNITS 1 AND 2 WITH 10 CFR 50 APPENDIX I DESIGN OBJECTIVES LIMERICK LIQUID 10 CFR 50, APPENDIX I DOSE UNITS 1 AND 2 DESIGN OBJ./2 UNITS Total body 1.02 mrem / year 6 mrem / year Max. organ 1.78 mrem / year 20 mrem / year (Bone)
RM-50-2 SITE I
LIMERICK GASEOUS 10 CFR 50, APPENDIX I DESIGN DOSE UNITS 1 AND 2 DESIGN OBJ./2 UNITS OBJECTIVE (3)
Gamma air doce
.86 20 (mrad /yr)(2)
Beta air dose
.59 40 (mrad /yr)(1)
Total body of
.46 10 5
individual (mrm/yr)(1)
I Skin of indivi-
.90 30 15 dual (mrem /
yr)(2)
Any organ all 10.55 30 15 l
pathways (mrem /
yr)(2)
(Thyroid)
(1) Doses from noble gases only (2) Doses from radioiodines and air particulates with half lives greater than eight days (a) Annex to Appendix I, 10CFR50; Concluding Statement of Position of the Regulatory Staff, Public Rulemaking Hearing on Numerical Guides for Design Objectives and Limiting Conditions for Operation to meet the criterion "as low as practicable" for Radioactive Material in l
Tinht Water Cooled Nuclear Re :tc;., C1*. C 00 Lct L.
l RM-50-2.
17 34 Rev.
+9, 02/et l
l l
LGS EROL p m,i n p, p m _a in 1:.:
a 6.1.5.2.6 Milk L;d u LT a d Milk samples will be collected and analyzed from three available l
locations within 5 km (three miles) having the highest dose potential (5C1,1081, 10c1 ) and at a control location l
approximately 15 km from the plant in the least prevalent wind direction.
Samples will be collected bi-weekly during the grazing season and monthly at other times.
To increase program coverage, an additional nine stations have been added to the milk sampling program and will be collected monthly.
6.1.5.2.7 Vegetation Broad leaf vegetation will be sampled and analyzed monthly during the growing season at a location near the site boundary in the sector with the highest annual average D/0 (1151).
6.1.5.2.8 Fish Although there are presently no commercially important species in the vicinity of the discharge, two species of recreationally important fish, sunfish and brown bullhead, will be sampled if available.
Fish will be sampled semi-annually at three locations:
an upstream control in an area not influenced by plant discharge (33A2), a location in the vicinity of the discharge point (16B2), and a downstream area (16C4).
6.1.5.2.9 Game A sample of small game animals will be obtained and analyzed annually from the vicinity of Limerick.
sy 02/8 4 6.1-59 Rev. 3,
- 20. 02
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TAPTI S.1-45
.(Page 3 of 3) i s '
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4 Frequency of No. of j
Md F.img Tyre stations gnelysis Anal g s _
Surface Water 5
Gailma Isotopic Monthly Tritium 03mposite l
Quarterly Gross Peta (solut le C insoluble)
Mc nt hly i
I i
Drinkin) water 5
Gamma Isotopic Monthly f
Quarterly Tritium C mposite 5
Gross Beta (soluble C insoluble)
Monthly 4
t t
i Groundwater 2
Gamma Isotopic Semi-annually
{
Tritium Semi-annu a lly I
Gediment 3
Gamma Isotepic Semi-annually i
3 Gamma Is3tepic Semi-annually Fish j
Vegett+ ion 1
Fadioi3 dine Monthly during
[
1 growing seasen
,p 4
m/
1 j
Milk 13 Fadioi3 dine (I-1311 Pi-weekly during l
j" f Ds dg y grazinq sessen, j
Monthly at othe r
{
eimes. (4 Stations)
C;-%
i C
Monthly analysis-i only.
( 9 Stat 1 n?)
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Gamma Isotapic Ousr++rly gf.:
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1 Camma Isct?pic Anr ually l I t
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LGS EROL u,4 ters a TABLE 6 1-46 (Page 4 of 7)
DISTANCE STATION CODE SECTOR (MILES)
DAIRY'AND' COAT' FARMS SC1 NE 2.6 9E1 E
4.1 9G1 E
11.4 10B1 ESE 1.1 l
10C1 ESE 2.8 11E1 ESE 4.9 17C2 S
2.5 17D1 S
3.6 18C1 S
1.9 21B1 SW 1.7 22F1 SW 9.8 25B1 WSW 1.3 36E1 N
4.7 l
61 02/84 Rev. +, ' 0,': 2
py g gry LGS EROL b bbONO TABLE 11.3-1 (cont'd)
Page 3 of 4 Item Costs Reference 9.
Atmospheric Costs a.
Radioactive Releases-Gaseous Effluents Biota other than man mead /yr/2 units Table 5.2-10 SPECIES INTERNAL EXTERNAL Raccoon 0.0 1.3 Heron 0.0 1.3 Duck' O.0 1.3 Terrestrial Vege-tation 0.38 1.6 Squirrel 1.4 1.9 Robin 0.0 1.9 Mockingbird 0.0 2.5 Deer 2.3 1.2 Individual Man
--/yr/2 units Table 5.2-18 1)
Noble gases Gamma Dose in Air 0.86 mrad Beta Dose in Air 0.59 mrad Total Body Dose 0.46 mrem Skin Dose 0.90 mre 2)
Radioiodines and Particu-lates Any Organ j
(all pathways)10.55 mrem (Inf ant-thyroid)
I b.
Cooling Towers Evaporation 32.4 MGD Section 3.3 e
Drift 0.4 MGD Section 3.3 Salt Deposition Variable with Section 5.1.4 distance, sector
- 10. Terrestrial j
a.
Site 595 acres Section 2.1 b.
Station Facilities 87 acres Section 2.1 l
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LIMERICV GENERATING STATION UNITS 1 AND 2 ENVIRONMENTAL REPORT 1
ENVIRONMENTAL SAMPLING STATIONS '
INTERMEDIATE DISTANCE FIGURE 6.129 REV.
.