ML20127K860
| ML20127K860 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 12/31/1981 |
| From: | Denise Edwards, Warriner G CAROLINA POWER & LIGHT CO. |
| To: | |
| References | |
| NUDOCS 8505220206 | |
| Download: ML20127K860 (63) | |
Text
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.__I. h m F//Jegi.so u M Shearon Harris Energy & Environmental Center c:3 Carolina Power & Light Company .
New Hill, North Carolina o3 p
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ENVIRONMENTAL RADIOLOGICAL MONITORING REPORT FOR BRUNSWICK STEAM ELECTRIC PLANT 3ANUARY 1,1981, THROUGH DECEMBER 31,1981 l
- l Prepared By: Approved By:
l I
Don H. Edwards
//
k ," ' N ' [ 'A4A/ JF.
- Senior Specialist - Environm/
originel signed By G H. WARRINER George H. Warriner ental Principal Specialist - Environmental p March 29,1982
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r j TABLE OF CONTENTS f .
1.0 I N T RO D U CTIO N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
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1.1 Plant and L ocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I 1.2 Environmental Monitoring Program . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.0 P ROG R AM SU M M A RY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 12
- 3.0 INTsRPRETATIONS AND CONCLUSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 34 1
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- 3.1 Air S am pl e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
?
s 3.2 M ilk S a m pl es . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 1
3.3 V e ge tation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 3.4 Soll.................................................... 48 i
3.5 S urf a ce W a t e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 f
_ 3.6 Fish.................................'................... 50 3.7 Shrimp, Benthic Organisms, Beach Sand, Oysters, t and G roundwater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 1
l 3.8 Bottom Sediment and Aquatic Vegetation . . . . . . . . . . . . . . . . . . . 51 3.9 Zoopl ankt o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.10 External Radiation Dose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.11 S u m m ary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 4.0 MISSED S AM PLES AND AN ALYSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 4.1 A quatic Vegetation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 4.2 Fodder and F e ed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 4.3 F oo d C r o ps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 4.4 M11k.................................................... 54 4.5 Soll .................................................... 55 I
t I
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t TABLE OF CONTENTS (continued) i
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- 5.0 A N ALYTI CAL PR OCE D U RES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.
! 5.1 G ros s Be ta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
' 56
~5 .2 T r it iu m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Io d in e- 131 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
'5.4 . S tro n tiu m-8 9, 9 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 5.5 Gamma Spectrometry Ge(L1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 5.6 Thermoluminescent Dosimetry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 e
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1.IST OF TABLES l
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l Tatde _
M 1-1 Environmental Radiological Monitoring Program -
Brunswick Steam Electric Plant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ;
{ 2-1 Environmental Radiological Monitoring Program Summary . . . . . . . . . . . 15
}
i F1 Gross Beta Air Particulate Six-Month Averages for 3 Comparison of Preoperational Data to 1981. . . . . . . . . . . . . . . . . . . . . . . . 35
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. }-2 Summary of Average Concentration and Frequency of Detection for Radionudides in Quarterly Composite Gamma Scans for' Air Particulate Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3-3 Summary of Detectable Radionuclides for 1981 in 47 Terrestrial Vegetation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4 Summary of Radionuclides Detected for 1981 Fodder Samples . . . . . . . . 48 3-5 Summary of Fission Products Detected in Soll Samples for 1981. ..... 49 3-6 Cesium-137 in Soll Samples at Station 35 (Stevens' Farm) . . . . . . . . . . . . .
50
} 3-7 Average Concentrations and Frequency of Detection for Radionuclides Observed in Fish Samples During 1981. . . . . . . . . . . . . . . . 51
[ _ .
1 6 3-8 Detectable Radionuclides in 1981 Bottom Sediment Samples . ........ 51 5-1 Typical Minimum Detectable Concentration Ge(L1)
G am m a S pectrometry . . . . . . . . . . . . . . . . .~. . . . . . . . . . . . . . . . . . . . . . . . . 58 L
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I LIST OF FIGURES h .
P,_agg 1.1 Location of Radiological Environmental Monitoring S t ations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
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! 1.2 Location of Radiological Environmental Monitoring S t at io ns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 t
1.3 Sketch lidap of Landfill Area Showing Locations
, of M onitor W ell Sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 L
4 1.4 Deta'll Section Monitor Well Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1 Plot of Sample Station 02 Activity Versus Date and Control Station Activity Versus Date . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.2 Plot of Sample Station 05 Activity Versus Date and Control Station Activity Versus Date . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.3 Plot of Sample Station 18 Activity Versus Date and Control Station ~ Activity Versus Date . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.4 Plot of Sample Station 23 Activity Versus Date ,
and Control S tatio'n Activity Versus Date . . . . . . . . . . . . . . . . . . . . . . . . . . 39 j 3.5 Plot of Sariiple Station 24 Activity Versus Date i and Control Station Activity Versus Date . . . . . . . . . . . . . . . . . . . . . . . . . . 40 I
3.6 Plot of Sample Station 45 Activity Versus Date f' and Control S tation Activity Versus Date . . . . . . . . . . . . . . . . . . . . . . . . . . 41 i
i 3.7 Plot of Sample Station 74 Activity Versus Date and Control Station Activity Versus Date . . . . . . . . . . . . . . . . . . . . . . . . . . 42
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L j 3.8 History of Cs-137 in Milk - Station 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 5
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1.0 INTRODUCTION
I l
The following report summarizes the Environmental Radiological Monitoring conducted for the Brunswick Steam Electric Plant during the calendar year 1981. This is the fifth year in which the program's sample analyses and data Interpretation have been entirely performed by Carolina Power & Light l
j Company.
)
1.1 Plant and Location
' The Brunswick Steam Electric Plant (BSEP) includes two units, both bolling l
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water reactors, which are designed to generate a total of 1,642 MW (net). f Unit 2 first achieved criticality on March 21,1975, and went into commercial production 'on November 3,1975. Unit I achieved criticality on Novem-ber 22,1976, and went into commercial production on March 18, 1977.
1 The BSEP is located in the southeastern corner of North Carolina, in l Brunswick County, approdmately 2.5 miles north of Southport. This location is near the mouth of the Cape Fear River, which is a source of condenser cooler water. An intake canal extends approximately three miles east of the t
l plant to the Cape Fear River, and the discharge canal proceeds southwest and south for approximately six miles to the Atlantic Ocean. The discharge canal 3 l passes under the Intercoastal Waterway by inverted siphon, proceeds to a
- j pumping basin at the shoreline, and is carried out .into the ocean by a p 2,000-f t. pipeline.
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[ Elevation of the plant areas ranges from sea level to 30 ft. (MSL) and I, extensive swamps and marshes occur in the area. Beaches, within 20 miles of the plant, are a source of recreation, and fishing and boating are popular.
f Within 50 miles of the plant, less than half the land is used for agriculture p
g with small truck, dairy, and poultry farms, along with crops including corn, soybeans, and tobacco. Most of the industrial activity is in the Wilmington f
y area (approximately 16 miles north of BSEP). Sunny Point Army Terminal is l located approximately 4.5 miles north of the BSEP and primarily transfers
] munitions, received by truck and rail, to ships. Pfizer Chemical C mpany is I$ located 1.5 miles southeast of BSEP and are manufacturers of citric acid.
1 3
h . . . . -
l They cmploy cpproximately 250-300 people. A ship channelin the Cape Fear River allows traffic to Wilmington, and the Atlantic Intercoastal Waterway Intercepts the ship channel at Southport.
1.2 Environmental Monitoring Program
- j The significant elements of the preoperational dose estimates were used to f establish both the preoperational and operational surveillance programs. The program that evolved during preoperational surveillance and was mcorporated
- into the Brunswick Environmental Technical Specifications is detailed in
.j' Table 1-1. Figures 1.1 and 1.2 show the environmental monitoring locations.
k
} Figures 1.3 and 1.4 relate to environmental monitoring requirements imple-
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mented in June 1980 that were commitments to the state of North Carolina
- in assessing the effect of an unplanned transfer of radioactivity to the
. [ Southport Landfill. The environmental monitoring program associated with
! these locations is a special program of limited duration and is not a part of
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the environmental surveillance designed to support the Brunswick Environ-
-: mental Technical Specifications (Appendix B).
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kF ENVIRONMENTAL RADidLOGCAL MONITORING PROGRAM BRUNSWICK STEAM ELECTRIC PLANT Sample .
Sampling Frequency Sample Size Sample Analysis Type Sampilng Point and Description Air 2-Information Center Weekly 300 cu.' m. Iodine Cartridge 5-Caswell Beach at Pump Station (AC) 18-Southport near CP&L Substation
' 22-Sutton Plant
- 23-Projected Maximum Annual Concentration Point - NE 24-CP&L Substation on Construction Access Road 45-On Site 74-Bethel Church Road (started 6-15-81) w Air 2-information Center Weekly 300 cu. m. Weekly-Gross Beta Particulate' 5-Caswell Beach at Pump Station -
Quarterly-Composite-(AP) 18-Southport near CP&L Substation Gamma and SR-89,90 22-Sutton
- 23-Projected Maximum Annual Concen-tration Point - NE ,
24-CP&L Substation on Construction Access Road -
45-On Site 74-Bethel Church Road (started 6-15-81)
Aquatic 29-Ocean - 0.5 Mlle East of Semlannual 500 grams Gamma and Sr-89,90 Vegetation Discharge Outfall (AV) 30-Ocean near Discharge Outfall 31-Ocean - 0.5 Mile West of Discharge Outfall .
42-Lower Cape Fear River Away from Plant Discharge
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in w & dauba k $r $ s N rw e r n - a-uw -...a_ _ _._ ._ .
TABLE 1-1 (cont'd) ,
Sample Sampling Type Sampling Foint and Description Frequency Sarnple Sim Sample Analysis Benthic 29-Ocean - 0.5 Mlle East of Semlannual 500 grams Gamma and Sr-89,90 Organism . Discharge Outfall (BO) 30-Ocean near Discharge Outfall 31-Ocean.- 0.5 Mlle West of Discharge Outf all 42-Lower Cape Fear River away from Plant Discharge
- Bottom 13-River Road at Intake Canal
- Semlannual. 500 grams ' Gamma and Sr-89,90 Sediment 29-Ocean - 0.5 Mlle East of (SD) Discharge Outfall
, 30-Ocean near Discharge Outfall 31-Ocean - 0.5 Mlle West of Discharge Outfall 33-Discharge Canal at Stilling Pond 34-Discharge Canal near the Plant Fish 30-Ocean near Discharge Outfall Quarterly 500 grams Gamma (FH) 43-Discharge Canal I
Fodder and 35-Stevens Farm , Monthly 500 grams Gamma Feed (FO) 36-Lewis Farm (went out of business (during 3/12/81) growing 37-Johnson Farm
- season)
- Control Station
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TABLE l-1 (cont'd) e '
qq Sample Sampling Type Sampling Point and Description '
Frequency Sample Stae Sample Analysis Food Crop 41-Highway 211 - 0.25 Mile ,Three per growing 500 grams Gamma (FC) East of Hwy.133 season 47-Site Varles*
s Groundwater 5-Caswell Beach at Pump Station Quarterly 4 liters Gamma and Tritium (GW) 25-Southport
- 26-Highway 87 - West Side of Discharge Canal 27-Hwy. 211 - West Side of -
Discharge Canal 28-BSEP - On Site - Well #1 35-Stevens Farm 53-69-Brunswick County Landfill **
u 70-73-BSEP Landfill * *
- Milk 35-Stevens Farm Weqkly 8 liters Weekly-Iodine (MK) 36-Lewis Farm (went out of business' Monthly--Compo' site -
3/12/81) Gamma and Sr-89,90 37-Johnson Farm
- Oyster 44-Lower Cape Fear River Semiannual 500 grams Gamma (OY)
Shrim 46-Ocean near Discharge Semlannual 500 grams (SH) p Gamma and Sr-89,90
- Control Station n **Added as a commitment to the state of North Carolina (started 2nd quarter 1980) n m m ann _ e o ~ m o w o -.. + 9 9=
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SoR : , , 2-information Center Every three years 500 grams . - Gamma .
(SS) 10-State Road 1525 at RR Crossing 18-Southport near CP&L Substation 22-Sutton Plant ,
23-Projected Maximum Annual Concen-tration Point - NE 24-CP&L Substation on Construction ,
- Access Road 27-Hwy. 211 - West Side of Discharge Canal .
35-Stevens Farm 36-Lewis Farm (went out of business 3/12/81) '
37-Johnson Farm * -
41-Hwy 211 - 0.25 Mlle East of Hwy.133 38-Caswell Beach - 0.5 Mlle East of Semlannual 500 grams Gamma and Sr-89,90 Discharge Pipe m 39-Caswell Beach at Discharge Pipe '
.40-Caswell Beach - 0.5 Mlle West of Discharge Pipe ,
Surface 29-Ocean - 0.5 Mlle East of Monthly 4 liters Monthly--Gross Beta, Water Discharge Outfall Tritium and Gamma (SW) 30-Ocean near Discharge Outfall . Quarterly Composite-31-Ocean - 0.5 Mlle West of ' Sr-89, 90 Discharge Outfall 32-Discharge Canal i 48-intake Canal" Terrestrial 2-Information Center Quarterly 500 grams Gamma Vegetation 13-River Road at Intake Canal .
(TV) 27-Hwy. 211 - West Side of Discharge Canal .
37-Johnson Farm
- _
- Control Station _
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Sampling Prequency Sample Size Sample Analysis wl& Di e gc y e SU M, ., ' '
l-3 unction of Hwys. 87 and 211' Quarterly Not TLD Readout Radiation 2-Information Center Applicable (TL) 3-Junction of Hwys. 211 and 133 ,
4-Standard Products Access Road Off Hwy.133 near Intercoastal Waterway 5-Caswell Beach at Pump Station 6-Sunny Point Access Road and RR Crossing 7-Entrance to Old Brunswick Town - '
. 8-Hwy. 87 at Bolling Springs Lake ,
9-Exclusion Boundary, Dirt Road -
which intersects Hwys. 87 and 133 10-SR 1525 at RR Crossing Il-Eastern End of SR 1525 12-Exclusion Boundary on Construction Access Road 13-River Road at Intake Canal y 14-River Road Opposite I. D. Smith Residence 15-River Road and SR 1534 '
16-River Road and Site of Old Brown &
Root Construction Office '
17-Southport - Fort Fisher Ferry Slip , -
'18-Southport near CP&L Substation 19-Fort Fisher Ferry Slip 20-Kure Beach - Across from AFB Housing 21-Carolina Beach 22-Sutton Plant
- 23-Projected Maximum Annual Concentration Point - NE Zooplankton 29-Ocean - 0.5 Mlle East of Discharge Semiannual 10 grams , Gamma and Sr-89, 90 (ZO) Outfall ,
30-Ocean near Discharge Outfall 31-Ocean - 0.5 Mile West of Discharge '
Outfall 42-Lower Cape Fear River Away from ,
Plant Discharge *
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- 1.OCATION OF RADIOLOGICAL. ENVIRONMENTAL MONITO,RI,NG STATIONS 9 .
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WELL NUMBER LO C ATION iA GW- 53 la GW-54
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Y l l ~ il : SKETCH MAP OF LANOFILL AREA SHOWING loc ATIONS OF - MO NI TOR WE LL , SITES . FOR D ETA I LE D SECTicN , SEE l FIGURE I.4
- 5nuwswicw. covNfv uM*"'W FIGURE I.3 ,
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.o f FIGURE I.4 11
fv . . . Il ' Following is a tabulation cf the specific methods used in monitoring the
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l various pathways of exposure to man. Gaseous Effluent Path Submersion Dose and Thermoluminescent Dosimetry I other External Dose. . Area Monitors k ~
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4 Vegetation Path
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Vegetation Samples Q ' Soil Samples Air Samples { -
- h. Milk Path Milk Samples
? Vegetation and Cattle 3 Feed Samples .
2 Air Samples
. Inhalation Path Air Samples Liquid Effluent Path
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Fish and Shellfish Path Water Samples Bottom Sediment Samples Aquatic Vegetation Samples Zooplankton Samples Benthic Organisms
- _ Fish Samples Oyster Samples Shrimp Samples
]
f Water and Shoreline Exposure Thermoluminescent Dosimetry i Area Monitors j Water Samples .
- j. Bottom Sediment Samples
! Soil and Beach Sand 4
j Drinking Water Path Groundwater Samples 2.0 PROGRAM
SUMMARY
,j The purposes of the Environmental Radiological Monitoring Program are:
i i - To measure any accumulation of radioactivity in the environment and "l to assess whether this radioactivity is the result of the operation of the Brunswick Plant. 12 j
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- To provide an evaluation of the. environmental impact of operating -
releases of radioactive materials from the Brunswick Plant. ]
- To compare population doses from environmental sample . data with I
- corresponding doses predicted in the Final Environmental Statement.
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The Brunswick Plant's preoperational radiological monitoring was -
. conducted from July..24', 1972, until plant start-up in March 1975, and . ^
data therefrom were reported to the Nuclear Regulatory Commission in ! l
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June 1975. !
~
The following locations are designated as the Control Locations for the respective measurements and are Intended to indicate conditions away from Brunswick Plant influence: L. V. SUTTON PLANT - 23 ML NNE
, -Gample Station 22)
T Thermoluminescent Dosimetry Area Monitors Air Particulate Samples E- - Charcoal Cartridge Samples - Airborne I-131 INTAKE CANAL _ Gample Stations 48 and 13)
.l i Surface Water Samples (48) at Plant Bottom Sediment Samples (13) at River Road .
i 9- SOUTHPORT WATER SUPPLY (Sample Station 25) Vr Groundwater Samples h
#y JOHNSON FARM - 14.5 ML NNW Ql.
(Sample Station 37)
~
q Terrestrial Vegetation Samples O . Cattle Fodder and Feed Samples Kg- Soll Samples Milk Samples 13 .. w . , , , . . . . . _ _ . _ - , , , , .,_m , _ , _ _ , ,, , , , . ,,, _, ,__ ,
'4spW ,
..g i
j J VARIABLE LOCATION AWAY FROM PLANT d C5 ample Station 42)
- Plankton Samples Benthos Samples .
Aquatic Vegetation Samples ;
- h VARIABLE LOCATION AWAY FROM PLANT (Sample Station 47) h
^:
Food Crop Samples . No control locations are designated for shrimp, oysters, or fish. Table 2-1 summarizes.the results of the environmental radiological monitoring program for cal' endar year of 1981.
/
4 e 4 e k
~ .s 9
14
. a, , ..
4 hwAwwhuwe aho+s:w:w+dansdMNMZ , ' s..< >.. . ; ::; n ;> l
.. :g d.. [ E'" M $h i ;yg' ]}d
~ '
l i i V' f> ,, .p?" ,
, i
,~_%,
TABLE 2-1 N
. ENVIROIOfENTAL RADIOLOGICAL HONIERING FROGRAN SitMARY , Brunswick Steam Electric Fleet Docket Numbers 324 and 325 Brunswick County, North Carolina Calendar Year 1981 l Medissa or Pathway Type & Minimum All . Indicator location w/Mithest Annual Mean Control locatione f of Non-sampled or Measured Total f of Detectable locations (2) Name Mean Mean routine . (Unit of Messiere , Measurements Activity Mean Distance & Range (2)
- Reage (2) Beported ment) Farformed (NDA) (1) Range Direction Measure-I ments (3)
Air Cartridge 1-131 (pci/m3) 392(4) 7.00E-2 All less than M A All less than M A All less then E A 0 Air Particulate Crosa Beta 1.24E-1 (340/340) Projected Max. O (pC1/m3 ) 392(4) 2.00E-2 1.09E 4.7!.E-1 Annual Conc. Point NE 1.36E-1 (52/52) 1.32E-1 (52/52) 0.6 mi. NE 1.80E 4.30E-1 2.01E-2 .4.39E-1 a Sr-89 1.06E-2 (13/27) Projected Max. O I 31(5) 2.00E-3 1.89E 2.32E-2 Annual Conc. Point HE 1.77E-2 (1/4) 6.63E-3 (1/4) i 0.6 mi. NE (single value) (single value) st-90 9.44E-4'(3/27) Caevell Beach 0 31(5) 2.00E-3 4.58E 1.68E-3 at Pump Station 1.68E-3 (1/4) 4.9 mi. SSW (single value) All less than M A I I
4 -e / s _ lht
^
K?
- s& y .. ~
~
f '
~l ~ WD: ; QW N & ' %
.['_k ? l'q,qs ~
~
1 .. '
, . qji ;j ^i ' - L1%;y - [ f gfQfL. [? [Y;;jj Q N - t
_ e ;;, y w + c; 2 9 n
.s,,. -r 443 ,
2 3 ;, , wamam 3 1 : ~ .y. . Y Mf 5 y
.,3.yg.
~ s. n. s -
dQy; e 2 q 4 ,,, *.- y. g 4[, - y ? W,p ENTIn0ERIENTAL RAD 10tACICAL MONITOR 1R0 F90 Ghat M &# '! - , 3
.;. ?y\
i Brunswick Steam Electric Flant Docket thumbers 324 and 32S ;
! Brunswick County, North Carolina Calender Tear 1981 Medium or Fathway Type & Minimum All Indicator location whtighest Annual Mesa Control locatione I f of Itse- I Sampled or Measured Total I of Detectable locatione (2) Name Henn Meam routine Range (2) Reported (Unit of Measure- Measurements Activity Mean Distance & Range (2)
Forformed (MDA) (1) Range Direction Hessure-ment) ' meets (3) Air Particulate canna (16) , (pci/m3) 31(5) 1.66E-3 (1/27) Projected Max. O I i 16i-54 1.29E-3 (single value) Annual Conc. l Point NE 1.66E-3.(1/4) 0.6 mi. NE (single value) All less then ISA Nb-95 2.00E-3 8.10E-2 (14/27) Southport Near 0
' 1.15E 1.52E-1 CF&L Substation 9.67E-2 (1/4) e
. 2.3 mi. SW (single value) All less than lea i e l Zr-95 6.00E-3 3.96E-2 (14/27) on site 4.65E-2 (2/4) 4.11E-2 (2/4) 0 6.74E 5.39E-2 0.07 mi. NNW 4.02E 5.29E-2' 3.58E 4.64E-2 .
s
.? ,
} Ru-103 3.00E-3 2.29E-2 (12/27) CF&L Substation I
- l 1.32E 3.30E-2 on Const. Access 0
$ 2.45E-2 (2/4)
Road 2.62E-2 (2/4) i . 1.0 mi.'s 2.15E 2.75E-2 1.77E 3.47E-2 I g 6 0 I W 0
)
-01
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,s ,_ 3: -
' 4 Q ,> ;p,s ,
- r. , l4 ; s
. g+
TABLE 2-1
! ENVIRONMENTAL RADIO 1DCICAL MONITORINC PROGRAt SU) MARY i Brunswick Steam Electric Plant Docket Numbers 324 and 325 i Brunswick County, North Carolina Calender Year
- 1981 Medium or Pathway Type & Minimum All Indicator location w/ Highest Annual Mean Control !acations I of Ilon-Sampled or Measured ' Total # of Detectable Iecations (2) Name Mean Mean routine (Unit of Measure- Measurements Activity Mean Distance & Range (2) '
Range (2) Reported ment) Performed (HDA) (1) Ranse Direction Measure-ments (3) Air Particulate Camma(16) 3 (PC1/m ) 31 3.85E-2 (1/27) Projected Max.
.I O i Ru-106 6.30E-2 (single value) Annual Conc.
; Point NE 3.85E-2 (1/4) 0.6 mi. NE (single value) All less than ISA
, Cs-137 1.30E-3 5.84E-3 (7/27) Projected Max.
t O 1.83E 1.88E-2 Annual Conc. Point NE. 1.88E-2 (1/4) 4.02E-3 (1/4) 1 0.6 mi. NE (single value) (single value) I
-j Co-141 3.00E-3 L.78E-2 (11/27) 1.60g-2 (2/4) i on site 2.37E-2(1/$) 0 t f.44E 2.90E-2 0.07 mi. NNW .(single value) 1.11E 2.09E-2 Co-144 2.60E-2 2.95E-2 (17/27) Southport Near O e
] 7.51E 6.00E-2 CP&L Substation 4.22E-2 (2/4) 3.42E-2 (3/4) ,
2.3 mi. SW 2.44E 6.00E-2 7.25E 7.53E-2 l I. , a 4
, I ,.
RNVIt0tetRNTAL BADIOLDOICAL MONITUR1t0 7903N8 M ,'.. ,' / q. . 7 gg a
- y. -
Brunswick Steam Electric Plant Docket Ihambers 324 and 325 <
! Brunswick County, North Carolina Calender Year;1981 6
Medium or Fathway Type & Minimum All Indicator location w/Hinheat Annual Mean Contaol locations 1 f of mou- 1 sampled or Measured Total # of Detectable locations (2) Nome Mean Mean routine (Unit of Measure- Measurements Activity Mean Distsace & Range (2) Range (2) Reported
, ment) Performed (MDA) (1) Range Direction Measure-ments (3)
Aquatic Vegetation St-89 0 (pci/ gram dry) 6(6) 3.60E-1 All less than M A All less than W A All less than M A f
, Sr-90 6 1.81E-1 All less than M A All less than HDA All less than HDA 0
% (16) 6 I0} 1.10E-l'(1/4) 0
- e 5
, Co-60 6.50E-2 All less than M A All less than M A (single value) i i Nb-95 6.00E-2 8.30E-1 (3/4) Ocean Near j' 2.57E 1.55Et0 Discharge Outfall 1.12E+0 (2/2) 2.39E-1 (1/2) 0 5.7 mi.'SSW 6.84E 1.55E+0 (single value)
Zr-95 1.10E-1 All less than W A All less,than M A 7.15E-1 (1/2) 0 l (single value) l t Re-103 5.503-2 All less than E A All less than W A 6.23E-1 (1/2) 0 (siasle value) av 1 l g.
,-n... -.-s y + ,gg, pew 5
y, .- y a w. ..
*d' ENVIR0ttmMTAL RADIOtDCICAL MONITORING Ft0 CRAM BUltutY Brunevick Steen Electric Plant Docket Numbers 324 med 325 Bruosvick County, IIorth Carolina Calender Year' 1981 ,
Medium or Fathway Type & Minteum - All Indicator Location w/Ninheat Annual Mean Control Incations ! f of Ilom I
, Total # of
- Sampled or Measured Detectable locations (2) Name Mean Mean routine
. (Unit of Measure- Measurements Activity Mean Distance & Range (2) Range (2) Reported Measure-ment) Farforleed (MDA) (1) Range Direction Aquatic Vegetation Comme (16)
, (pci/ gram dry) 6(6) 5.69E-1.(1/4) , Ocean - 0.5 Hile O
Cs-137 7.00E-2 (single value) East of Discharge i Outfall 5.69E-1 (1/2) 1.12E-1 (1/2)
,1 .
5.7 mi. SSW (single value) (single value) Co-141 6.50E-2 All less than lea All less than lea 7.48E-1 (1/2) 0 no (slagle value) Ce-144 2.65E-1 9.61E-1 (1/4)' ocean - 0.5 Mile
; (single value) East of Discharge O i
Outfall 9.61E-1 (1/2). 5.7 mi. SSW (single value) All less than ISA
! Benthic Organism 'Sr-89
) (pC1/ gram dry) 8 , 1.00E-1 All less than lea All leer than lea All less than lea, 0 1
. sr-90 8 4.30E-2 All less than lea All less than lea ,
All less than ISA 0 l s
'a # - * '
e one --- - em.*- -
.e m,a= em .e ,ee- .
* . ** , l[y
q - , TAtt.R 2-1
- ENVIRONMENTAL RADI0tACICAL MONITORING FROGRAM St9 MARY Brunswick Steen Electric Flent Docket Numbers 324 and 325
- Brunswick County, North Carolina Calendar Tear '1981
. Medium or Fathway Type & Minimus All Indicator location w/Righest Annual Mean Control Imcations f of Non-8 , Sampled or Measured Total f of Detectable Incations (2) Name Mean Mean routine (Unit of Measure- Measuremente Activity Mean Distance & Range (2) Range (2) Reported ment) Farformed (HDA) (1) Range Direction Measure-mente (3) Benthic Organism Camma II I (PCi/ gram dry) 8 N/A All less than M A All less than MA All less then M A 0 1 ' i . Botton Sediment St-89 7.67E-1 (1/11) Ocean - 0.5 Mile i
. (pci/ gram dry) 13 II 5.00E-1 (single value). East of Discharge 0
) Outfall '7.67E-1 (1/2) 5.7 mi. Ssw (single value) All less'than MA i o Br-90 2.10E-1 (1/11) Ocean - 0.5 Mile 13(7) 5.00E-1 (single value) East of Discharge 0 o Outfall 2.10E-1 (1/2) 2.75E+0 (1/2) 5.7 mi. SSW (single value) (single value) t
! r _. (16)
I i-13(7) ,7.29E-2 (1/11) Ocean Near> i th-54 2.30E-2 (single value) Discharge outra11 7.29E-2 (1/3) 0 a-
, 5.7 mi. SSW (single value) All less then M A f
I g _, I___s t + .
4 ENVIRotMENTAL RAD 101DCICAL MONITURIDO FR00RJd4 SUtetART
, Brimovick Steam Electric F1snt Docket Numbers 324 and 325 i i Brunovick County, North Carolina Calendar Year *1981 - Medium or Fathway Type & Minimum All Indicator location w/ Highest Annual Mean Control locations 1 f of non- i ! Sampled or Measured Total # of Detectable tocatione (2) Name Mean Mean routine.
(Unit of Messiere- Measurements Activity Mean Distance & Range (2) Range (2) Reported 8 ment) Forform d (MDA) (1) Range Direction Measure-ments (3) Botton Sediment Camma( (PC1/ gram dry) 13( } 6.49E-2 (2/11) Ocean Near Co-60 3.00E-2 3.55E 9.43E-2 Discharge Outfall 9.43E-2 (1/3) 0 5.7 mi. SSW (single value) All less than MDA i Nb-95 2.40E-2 6.30E-2 (5/11) Ocean - 0.5 Mile l 2.56E 1.30E-1 West of Discharge O g outfall 1.30E-1 (1/2) 5.46E-2 (1/2) 5.7 mi. SSW (single value) (single value) t Er-95 4.70E-2 3.10E-1 (1/11) Ocean Near 0
) (single value) Discharge Outfall 3.10E-1 (1/3) 5.7 mi. SSW (single valus) All less than M)A I
Ru-103 2.40E-2 3.46E-2 (2/11) Ocean Hear
; 2.97E 3.96E-2 Discharge Outfall 3.96E-2 (1/3) . 0 5.7 mi. SSW (single value) All less then imA 4
s t t t *
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TABLE 2-1 4 r.) y ENVIROIGENTAL RADIOI4CICAL HONITORING FROGRAM $14 MARY Brunswick Steam Electric Flaat Docket Numbers 324 and 325 Br3wwid Cos.ty, k ith Carolina C+1eder ?m 1931 Medium or rathway Type & Minimum All Indicator Location w/ Highest Annual.Meam Coetrol Recations f of Ilom- + Sampled or Measured Total # of Detectable' Iscations (2) Name Mean Mean routiae (Unit of Measure- Measurements Activity han Distance & Range (2) Range (2) Reported ment) Forformed (MDA) (I) Range Direction Measure-ments (3) II } Botton Sediment Camma III (pci/ gram dry) 13 3.96E-2 (2/11) Ocean Near 0 Co-137 2.80E-2 1.64E 6.28E-2 Discharge Outfall 6.28E-2 (1/3) 5.7 mi. SSW (single value) All.less than E A Ce-141 4.30E-2 2.07E-2 (1/11) Discharge Canal at' , (single value) Stilling Fond 2.07E-2 (1/2) 0 4.9 mi. SSW (single value) All less than lea Co-144 1.99E-1 3.07E-1 (1/11) . Ocean Near (single'value) 0 Discharge Outfall 3.07E-1 (1/3) l . 5.7 mi. SSW (single value) All less than lea i Fish comma (16) (PC1/ gram dry) 8 8.43E-2 (2/8) Discharge Canal 8.43E-2 (2/4) 0 m-54 6.50E-2 7.97E 8.89E-2 1.5 mi. WSW 7.97E 8.89E-2 No Control Co-60 6.50E-2 2.15E-1 (2/8) Discharge Canal 2.15E-1 (2/4) 0 l 1.63E 2.67E-1 1.5 mi. WSW 1.63E 2.67E-1 'No Control i I t a l h I
- m 5 a-wdd!
Y ,;,y~) g' ', o t W., > f_j'_:w,, [~} } ,.:l, f,.
,y'n'-
' j
.+
- ( ,~ :
i ,
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y.9 i TABLE 7-1 EMrIROIGOMTAL RADIOIACICAL NOMITORING FROGRAM BUt01ARY
; Brunewick Steam Electric (lent Docket Numbers 324 and 325 ; Brunswick County. North Caroline Calendar Year 1981 Medium or Fathway Type & Minizian All Indicator _tocation w/ Highest Annual Mean Control incatione # of Noe-l Sampled or Measured Total f of Detectable Incations (2) Name Mean Mean routine (Unit of hasure- Measurements Activity Mean Distance & Range (2) Benge (2) Reported ment) Forformed (HDA) (1) Range Direction Measure-meets (3)
Fish Camma(I .
, ,(pcl/ gram dry) 8 1.83E-1 (2/8) DischarEe Canal 1.83E-1 (2/4)' O l Co-137 7.00E-2 5.31E 3.135-1 1.5 mi. WSW 5.31E 3.13E-1 No Control , Fodder and Feed Cassa( }
21 II (pci/ gram dry) 4.51E-2 (1/11) O m-54 6.50E-2 All less than M A All less than M A (single value) U Nb-95 6.00E-2 1.57E+0 (6/10) Stevens Fars 1.63E+0 (5/8) 6.43E-1 (4/11) 0
! . 8.98E 5.37E+O 0.6 m1. SE 8.98E 5.37E+0 1.69E 1.30Ef 0 i '
Zr-95 1.10E-1 1.25E+0 (6/10) Stevens Fern 1.29E+0 (4/8) ,1.13E+0 (6/11) 0 1 6.69E 2.57E+0 0.6 mi. st 6.69E 2.57E+0 2.20E 2.60E+0 d l Ru-103 5.50E-2 4.04E-1 (5/10) Stevens Farm 4.57E-1.(3/8) 2.64E-1 (5/11) 0 2.13E 8.33E-1 0.6 t. sE 2.13E 8.33E-1 4.54E 6.31E-1 Co-137 7.00E-2 4.17E-1 (6/10) Stevens Fare 4.83E-1 (5/8) 0 1.36E-1 (6/11) 8.58E 1.04E+0 0.6 mi. SE 1.36E 1.04E+0 2.96E 3.28E-1
- l .
I
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4 , ,
~
t, TABLE 2-1 ENTIROIWfENTAL RADICIDGICAL MONITORING FROGRMt SINGEARY
, j Brunswick Steam Electrie F1snt Docket Numbers 324 and 325 Erunswick County, North Caroline Calendar Year 1981 All Indicator incation w/Iliaheer Annual Mean Control Imcatione i of Non-Medissa or Pathuey Type & Minimum Mean routine locations (2) Name Mean Sampled or Measured Total # of Detectable Range (2) Range (2) Reported Measurements Activity Mean Distance & Measure-(Unit of Meaante- Range' Direction ment) Ferformed (HDA) (1) ments (3)
Fodder and Feed Comme (16)
- 1.$3E-1 (1/11) O (PC1/ gram dry) 21(8)
La-140 6.50E-2 All less than M A All less than MA ~(single value) Ce-141 6.50E-2 6.23E-1 (5/10) Lewis Farm 8.70E-1 (2/2) 6.76E-1 (6/11)' O 1.595 1.068+0 13.0 mi. NNW 6.81E 1.06E+0 1.62E 1.39E+0 Stevens Farm 1.58E+0 (6/8) 7.97E-1 (5/11) 0 co-144 2.65E-1 1.43E+0 (8/10) u
- 2.30E 4.16E+0 0.6 mi. SE 2.30E 4.16E+0 3.12E 1.015+0 All less than M A '4.47E-2 (1/11) 0 Hg-203 5.00E-2 All less than M A (single value) i
) i Food Crop Comma
. (pC1/ gram dry) 6I 'I 6.26E-2 (1/3) FHAC Test i
Carden #4 6.26E-2 (1/1) 0 Er-95 1.10E-1 (single value) t (single value) All less then M A 0.6 mi. NE [
!yl J ,-
p, m c v. ,
-s 6
1 ~
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- 6 '
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, me TAtl.E 2-1 ,
t ENVIROIRIENTAL RADIOIDCICAL MONITORING PROGRAM SUlttARY Brunswick Steen Electric Plant Docket ihambers 324 and 325 < Brunswick County North Carolina Calender Year 1981 f Medium or Fathway Type & Minimum All Indicator , location w/Hithest Annual Mesa Control Incations i of Non-
' Sampled or Measured Total f of Detectable Iscations (2) Name Mean Mean routine (Unit of Mesoure- Measuremente Activity Mean Distance & Range (2) Range (2) Reported l
ment) Ferformed (MDA) (1) Range Direction , Measure-mente (3) Food Crop Casuna 9 (pci/ gram dry) 6 1.87E-2 (1/3) PMAC Test 0 Ru-103 5.50s-2 (single value) , Carden #4 1.87E-2 (1/1) [. 0.6 mi. NE (single value) All less than M A Co-137 7.00E-2 All less than M A All less than M A , 3.05E-1 (3/3) 0 i 8.16E 4.97E-1 I u . Ce-141 6.50E-2 5.18E-2 (1/3) PMAC Test 0 (single value) Carden #4 5.18E-2 (1/1) t 0.6 mi. NE (single value) All less then M A Il Cround Water Tritius (PC1/L) 24 1.20E+2 All less than HDA All less then MA All less than MA 0 (16) , 108(10) N/A All less than M A All less than W A All less than M A 0 l
~ ~} ~ ~ ~ ~ ~ ~ L . .. * . . ws+m m @
= n.
' E. ? -
> - L g . s l.
i d[#pa s 9 , ; ;p ; . TABLE 2-1 ' j ENVIR0lefENTAL BADIGIDCICAL MONITORINC FROGRAN StSetART Brunswick Steen Electric Flent Docket Numbers 324 and 325
! Brunswick County, North Carolina Calendar Year 1961 Medium or Fathuey Type & Minimum All Indicator toestion.w/ Highest Annual Mean Control locations # of Non- , Sempted or Measured Total f of Detectable locatione (2) Name Mean Meen routine (Unit of Hessiere- Measuremente Activity Mean Distance & Range (2) Range (2) Reported ment) Forformed (MDA) (1) Range Direction Measure-mente (3)
Milk 1-131 4.32E-1 (12/54) Stevens Fara 4.60E-1 (11/45) 0 (pci/L) 106 IIII 2.00E-1 1.25E 1.01E+0 0.6 mi. SE 1.63E 1.01E+0 All less then M A i Sr-89 4.92E+0 (2/13) Stevens Faru 4.92E+0 (2/11) O a 25(12) 3.50EW 4.21E+0 - 5.64E+0 0.6 mi. SE 4.21E+0 - 5.64E+0 All less them M A Sr-90 4.66E+0 (4/13) Lewie Fara 9.82E+0 (1/2). 5.30E+0 (4/12) 0 I 25 2.00e+0 2.08E+0 - 9.82E+0 13.0 mi. NNW (single value) 2.34E+0 - 8.285+0 5t (16) , i 26 II I 5.82E+1 (14/14) Stevens Fara 6.92E+1 (11/11) 9.52E+0 (4/12) 2 i
. Ca-137 9.00840 9.45E+0 - 1.42E+2 0.6 mi. SE 3.64E+1 - 1.42E+2 7.19E+0 - 1.425+1 l
I I Oyster Comm=II (pci/ gram dry) 2 N/A All less than MA All less than M A No Control O
, Shrimp St-89 (pci/ gram dry) 2 1.10E-1 All less then lea All less than M A No Control O j ,
6 8 4 Y
I.. 8 5 3=
.1 ..
s
,. ' F b ., ,
I 1.lYJ l J_[ -- - -l ;. 3.} Y
.' l l
_g- q.y a,q. .u g,- . c TABLE 2-1 , e
. ENVIRoletENTAL UDICIDGICAL MONITORING FROGRAM SUlttARY' .
Brunswick Steam Electric F1sa: Docket Numbers 324 and 325 1, Brunswick County, North Carolina Calendar Year 1931 Medium or Fatbuey Type & Minimum All Indicator location w/Ninheet Annual Mean Control locations f of Non-i Sampled or Measured Total f of Detectable locations (2) Name Mean Mees routine
' Haan Distance & Range (2) Range (2) Reported (Unit of Measure- Measurements Activity , , ,. ment) Performed (MDA) (1) Range Direction Measure-
' A ments (3)
; Shrimp Sr-90 ' (FC1/ gram dry) f2 5.00E-2 All less than E A All lees than NDA No Contos1 0 4- _
(16) i
, 2 N/A All less than MA A11 less than MA , No Centrol 0 t
Soil Br-89 (pci/ gram dry) 16(I I 5.005-1 All less than E A All less than MDA , All less than M A 0 e
; Sr-90 ,
16 5.00E-1 All less than M A All less than E A All less then M A 0 c - .(16) 16(13) 9.06E-2 (4/15) Sutton Flant 1.29E-1 (1/1) 0 Mb-95 2.40E-2 4.14E 1.29E-1 23 mi. NNE (single value) All less than M A Er-95 4.70E-2 4.96E-2 (1/15) CF&L Substation
- (single value) on Const. Accese O Road 4.96E-2 (1/1) l 1.0 mi. S (single value) All less then tea t '
i, . e I'
- g
efj, ' g TABLE 2-1 i ENVIROIDIENTAL RADIO 14CICAL MONITORING FROGRAN steMARY i heinici teses A13ctrie ? lect Docket Nunters 124 and 2 5 1 czavick taozy, For3 Caroline Caler.Sar Yeer 1931 Imedse er kr$wey type & Mieluum 411 2s4;ceter !a stise wlFiabest hiaw l Mass Centrol Zacettees f of Emm-sempted er Meesured Total # of ' Detectable. , Lesettees (2) . Name Mese Noen reettee Messeremente Activity Nees Dietence & Range (2) Range (2) Reported (Weit of Mosewrea ment) Forformed ORA) (1) Esege Directice Messere-amate (3) Soil h( } Nwy. 211 - 0.25 Mile (pci/ gram dry) 16 IIU 2.96E-2 (2/15) Emot of Rwy. 133 3.68E-2 (1/1) O Ru-103 2.40E-2 2.29E 3.68E-2 2.6 mi. SSW (single value) All less then M . Co-137 2.80E-2 1.41E-1 (8/15) Sutton Float 3.05E-1 (1/1) 5.06E-1 (1/1) 0 2.62E 3.05E-1 23 mi. NME (single value) (single value) Surface Water Cross Beta 2.80E+2 (40/48) Ocean - 0.5 Mile e$ (PC1/L) 60 1.23E+2 1.60E+2 - 4.90E+2 West of Discharge 0 Outfall 3.08E+2 (10/12) 2.69E+2 (10/12) 5.7 mi. S5v 2.23E+2 - 4.01E+2 1.32E+2 - 4.675+2 Er-89 20 5.00E+0 All less then M All less then M A All less then m 0 Sr-90 20 5.00s+0 All less then M A All less then WA All less than m 0 Tritium 20 3.50E+2 All less then M All less them W A All less then m 0 4
-_ w - -.
.,e,._ ,., .
~
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- g. m ...,,
W . s: .
~,
t' s M a t TABLE 2-1 ENTIB010erfA1. RADIO 14CICAL MONI1DRING FROGRAM SUMARY
, Brunswick Steam Electric F1snt Docket Numbere 324 and 325' , Brunswick County, North Casolina Calendar Year 1961 r
Medium or Fathway Type & Minimum All Indicator facetion w/Hiahest Annual Mean Control 1meetione f of Non-Sampled or Measured Tbtal I of Detectable Incations (2) Name Mene Meae rootine I (Unit of Measure- Measuremente Activity Mean Distance & Range (2) Range (2) Reported ment) Performed (MDA) (1) Range Direction Measure-ments (3) Surface Water c==a ( } (PC1/I.) 60 N/A All less than lea All less than MA All lese than M A 0
! '=rrestrial c Mation Camuna(16)
714ta w dry) 16 6.25E-2 (6/12) River Road at
? Ih-54 6.50E-2 3.31E 1.16E-1 Intake Canal 7.45E-2 (2/4) 0 y 1.3 mi. ENE 3.31E 1.16E-1 All less than lea l Nb-95 6.00E-2 1.79E+0 (5/12) Information Center 2.'17E+0 (4/4) 1.04E+0 (3/4) 0 1.11E 4.52E+0 1.0 mi. SW 1.11E 4.52E+0 1.70E 2.065+0 l
Ir-95 1.10E-1 1.47E+0 (9/12) Highway 211 - West ! 4.35E 3.47E+0 Side of Discharge ' 0 i Canal 1.79E+0 (3/4) . 7.94E-1 (3/4) t 1.5 mi. WSW 4'.35E 3.47E+0 4.29E-1,- 1.175+0 Itu-103 5.50E-2 2453E-1 (9/12) Information Center 3.31E-1 (3/4) 2.02E-1 (3/4) , 0 1.00E 5.57E-1 1.0 mi. sw 1.27E 5.57E-1 1.255 2.82E-1
, ,i
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i TABLE 2-1 ENVIROttfENTAL RADIOIDCICAL MONITORIIIG FROGRMt SUI 9tARY Brunswick Steam Electric Flant Docket, thambers 324 ' sed 325 '
, Brunevick County, Morth Ca'rolina Calendar Year 1981.
I Medium or Fathway Type & Minimum All Indicator Incation w/Ninhest Annual Mean Control Incations # of Iloe-l Sampled or Measured Total f of Detectable Incations' (2) Name Mean Mesa routiae
! (Unit of Measure- Measurements Activity Mean Distance & Range (2) Range (2) Reported ment) Forformed (HDA) (1) Range Direction Messere-meets (3) lj Terrestrial
,Tegetation Camma(16) i I (PC1/ gram dry) 16 2.78E-1 (9/12) Highway 211 - West 0 I .
Cs-137 7.00E-2 9.14E 1.315+0 Side of Discharge Canal 5.18E-1 (3/4) 1.43E+0 (4/4) 1.5 mi. WSW 9.14E 1.31E60 .7.21E 3.63E+0 8 La-140 6.50E-2 8.55E-2 (1/12) Information Center 8.55E-2 (1/4) 0 (single value) 1.0 mi. SW (single value) All less than lea c co-141 6.50E-2 6.03E-1 (8/12) Information Center 8.42E-l'(3/4) 7.35E-1 (2/4) 0 7.73E 1.788+0 1.f mi. SW 7.73E 1.78E+0 5.61E 9.09E-1
~
Co-144 2.65E-1 1.07E+0 (12/12) , Information Center 1.20E+0 (4/4) 8.45E-1 (4/4) 0 3.12E 2.04B+0 1.0 mi sW 3.56E 1.87E+0 2.96E 1.30E+0 TLD, TLD Readout 9.59E-1 (87/88) Frojected Max. (all11res per 92 3.00E-1 II'I 4.50E 1.54E+0 Annual Conc. O week) Point NE 1.34E+0 (4/4) 8.75E-1 (4/4)
. , 0.6 mi. ME 1.10E+0 -'1.54E+0 7.908 1.05E40 ,
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l ;, 4 TAtt.E 2-1 ' ENVIROIOGENTAL RADI0tACICAL MONITORING FROGRAM BitetARY , Brunewick Steam Electric Flant Docket N ebers 324 and 325 Brunswick County, North Carolina Caleeder Year 1981 , Medium or Pathway Type & Minimum All Indicator Iocation w/ Highest Annual Mean Control 1meetions # of Ilom-Sampled or Measured Total f of Detectable I.scatione (2) Name Meso .Mean- rostfee j (Unit of Measure- Measuremente Activity Mean Distance & Range (2) Range (2) Reported ment) Performed (MDA) (1) Range Direction Measure-mente (3) Zoopienkton Br-89 (pC1/ gram dry) 8 3.00E+0 All less than lea All less than lea All less than lea 0
. Sr-90 6.19E-1 (1/6) i Ocean - 0.5 Mile
- 8 3.00E+0 (' single value) East of Discharge 0 Outfall 6.19E-1 (1/2)
. i 5.7 mi. SSW (single value) All' lese 'then ISA l e j (16) 10(15) 2.00E-1 3.47E+0 (1/7)'
Ocean Near 1 0 i th-54 (single value) Discharge outfall 3.47E+0 (1/2) t l 5.7 mi. SSW (single value) All less thee lea
~
Co-60 3.00E-1 , 4.00E+0 (2/7) Ocean Near 0 3 2.99E40 - 5.18E+0 Discharge outfall 4.00E+0 (2/2) i t , 5.7 mi. ssW 2.99E+0 - 5.18E+0 All less then pea Co-139 2.00E-1 '.33E-1 (1/7) 1 Ocean - 0.5 Mile 0
! (single value) East of Discharge 1.33E-1 (1/2).
'. Outfall (single value) All less than lea
, i 5.7 mi, SSW , ,
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, ;;g FOOTNOTES j
-4 '
@$ t*
- 1. Minimum detectable concentration is calculated based on three standard deviations above background, using typical sample size in a given counting time.1 Dye -
4H up . counting statistics and varying volumes, occasionally losver minimum detectu.2 T, activities are achieved. y- ; . , Strontium ~ and sea water gross beta ninimum detectable concentrations were not
~
cf " achieved as provided by technical spe :lfications. The low beta counting Instrumen-
. tation was.out of service beyond repoi.r for the months of November and December
.C 1981. An evaluation on the impact of reduced sensitives was made prior to using instrumentation with higher backgrounds.
' 2. Mean and range are based on detectable measurements only.. The fractions of detectab!'emeasurements at specific locations are Indicated in parenthesis.
- 3. Measurements in excess, at the 99.5% confidence level, of ten times the control station value or ten times the minimum detectable activity (MDA), whichever is larger.
- 4. Air particulate and charcoal cartridge samples were collected every Monday. There r re 52 Mondays in 1981 times 7 air particulate stations for a total of 364 analyses.
June 22,1981, Station 74 (0.9 miles NW of site) was added to the air monitoring program for an additional 28 analyses giving a total of 392 analyses during 1981.
- 5. Quarterly composites for gamma and strontium analysis at 7 air particulate stations I I -
equals 28 analyses plus 3 additianal analyses from Station 74 that was added
- June 22,1981. _
- 6. Aquatic vegetation samples at Station 29 (0.5 miles east of discharge outfall) and Station 31 (0.5 miles west of discharge outfall) were attempted during the first six months of 1981. These attempts were unsuccessful since there were no permanent beds of same at the required sampling stations.
- 7. Bottom sediment sample at Station 30 (ocean near discharge outfall) was collected and analyzed twice during the second six months of 1981. Normally, there are 12 analyses for sediment samples.
- 8. No fodder samples were available at Station 35 (Stevens' Farm) during January, February, March, and December 1981. No fodder samples were available at l Station 36 (i.ewis' Farm) for the month of January 1981. No fodder samples were available 'at Station 37 (Johnson's Farm) for the month of November 1981. I Station 36 was discontinued at the end of March 1981 since the dairy went out of ~j business (6 missing samples). On September 28,1981 (Amendments 40 & 63) Station ;
36 was deleted from the technical specifications (3 additional samples). l
- 9. . Food sample at Station 41 (Highway 211-0.25 miles east of Highway 133) is a roadside vegetable stand with locally grown vegetables. Due to dry weather, the ,
stand was closed most of the year. Samples were only available twice per growing j season. Collard sample was substituted in its place from the plant site's garden < q located at the Projected Maximum Annual Concentration Point-NE (0.6 miles NE). O _ 32
4 if , '0
- 10. Six groundwster samp12 stations require tritium and gamm3 analysis once per quarter as per technical specifications. Seventeen groundwater stations were added
~
to the Brunswick County landfill as a commitment to the state of North Carolina i requiring only gamma analysis quarterly. This was started in the third quarter of
~
1980. Four additional samples were added the first quarter of 1981 to monitor
,' Brunswick Steam Electric Plant's landfill as a commitment to the landfill permit. -
These samples are also sampled quarterly and analyzed for gamma emitters.
.: ~
G J Milk samples were colle'cted every Monday. There were 52 Mondays in 1981,
~
11. d' therefore, hav!ng a. possibility of 15_6 samples. No milk samples were available at Station 35 (Stevens' Cow) for January 1,1981, through February 16,1981, (seven g] u4_ _ weeks) due to cow being dry.
; s -
i ~No milk samples were available at Station 36 (Lewis' Farm) after March 12, ~ 1981, due to .the farm going out of business (30 samples). Station 36 was delected from
. the technical specifications (Amendments 40 & 63) on September 28, 1981 (13 additional samples). .
~
-12. There was no January composite for Staticn ~35 (Stevens' Farm) due to cow being dry. The February composite consisted only of a one-week sample for gamma and strontium analysis.
~
There was only_ a one-week sample for March monthly composite at Station 36. Strontium analysis was not analyzed due to lack of sample. April thru December, no samples were taken due to being out of business.
- 13. Eleven soll samples are collected oace every three years; however, Station 36 (Lewis' Farm) was discontinued due to going out of business and was deleted from g technical specifications on September 28,1981. Three sample stations are collected twice per year. -
~
- 14. Dependent on ambient background conditions.
- 15. Zooplankton samples were collected twice at Stations 30 and 42 during the second six months of 1981 for activity verification.
- 16. Summary of gamma analysis results in this report does not include the following naturally occurring Isotopes since most environmental samples contained some or all of these: Be-7, K-40, TI-208, Pb-212, Bi-212, Pb-214, Ra-226, Ac-228, and Th-234.
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q y- : , , . n , 5 i 3.0 INTERPRETATIONS AND CONCLUSIONS 1 s t Q s.
. 3.1 Air Samples y
a ~ 1 h , The gross beta results for air particulate samples collected during the' year of , i 0 ' 1981.are belovir the preoperational levels. All Indicator _ station activities f 3 averaged 1.24 E-1 pC1/m compared to 9.83 E-2 pC1/m which 1s. computed over the entire preoperational monitoring period. The 1981 average activity . 4'
~
of control station samples 'also decreased to 1.32 E-1 pC1/m3 which is a more '
- s. meaningful comparison to the indicator stations due to yearly weather
~
[ conditions (amount of rainfall) and other sources of activity (fallout from nuclear testing). The plots in Figures 3-1, 3-2, 3-3, 3-4, 3-5, 3-6, & 3-7 show i each indicator. station in comparison to the Control Station. A comparison of the Control Station to all indicator stations show results similar to the observations made during preoperational testing with the exception of Station 2 (Information Center) (see Table 3-1). The second half of 1981, Station 2 revealed gross beta activity higher than the Control Station at a freguency of 19 out of 26 weeks. The largest difference observed iras 2.4 times the Control Station. Gross beta results are primarily used for screening and establishing long-term trends and not for dose
~
measurements.
~
The quarterly composite gamma scans for the air particulate samples frequently showed short-lived fission products. Using a t-test at 99.5% confidence level, the Control Station is comparable to all indicator locations as summarized in Table 3-2. The occurrence of these radionuclides and the slightly higher gross beta results in comparison to preoperational data are not attributed to the operation of the Brunswick Plant. These radionuclides are a result of the nuclear tests conducted by the People's Republic of China on October 16,1980, encompassed with the unusual dry weather during the first two quarters of 1981.
~ ~ /
a 34
1_ .
- C -3 :M ns . d
, TABLE 3-1 GROSS BETA AIR PARTICULATE SIX-MONTH AVERAGES FOR COMPARISON OF PREOPERAY10NAL DATA TO 1981 DATA ist Half '81 2nd Half '81 ist Half 73 2nd Halt 73 ist Half 74 2nd Half 74 Stations pC1/m3 ,
AP-2 2.1 E-1 5.8 E-2 1.5 E-2 2.9 E-2 1.7 E-1 1.1 E-1 Information Center AP-5 1.9 E-1 3.9 E-2 1.5 E-2 2.8 E-2 1.6 E-1 1.1.E-1 Caswell Beach @ Pump Station AP-18 2.1 E-1 5.4 E-2 ' 1.6 E-2 3.2 E-2 1.5 E-1 1.1 E-1 Southport near CP&L Substation U AP-22 2.2 E-1 4.8 E-2 , 1.7 E-2 3.2 E-2 1.6 E-1 1.0 E-1 Sutton Plant (Control Station) AP-23 2.2 E-1 5.6 E-2 Not in use 3.1 E-2 1.6 E-l' 1.2 E-1 PMAC AP-24 2.1 E-1 5.1 E-2 Not in use 3.4 E-2 1;7 E-1 1.1 E-1 CP&l Substation on - Construction Access Road AP-45 2.2 E-1 5.4 E-2 1.6 E-2 3.1 E-2 1.8 E-1 1.1 E-1 On Site (2 Samples Only) . 4 l 4a >$
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4 , i FIGURE 3-4 . CPkL ENVIRONMENTAL MONTIORING SYSTEM > GROSS BETA AIR PARTICUIATE (PICURIES PER CUBIC METER) ' COMMON LOGARITIIM PIDT . , PI4T OF SAMPIR STATION ACTIvtri VS. JUIAN DATE STAR AT TIEPOINTS PIAT OF CONTROL ACIIVITY VS, JULIAN DATE DIAMOND AT TIIE POINTS , PLANT =BSEP POIllT=23 ACTIVITY $ 0.4000 - ' 0.2000 - O.0000 2 .
-O.2000 2
-0.4000 i 7
--0.6000 -~
-0.8000 - '
~1. 0000 -
-1.2000i
--! . 4000 -
/
-1.6000 2
-1.8000 2
--2.0000 2 ,. . . ... ... ... ... ... ... ... ... ... ... ... . ... ... ....... ... .,, ... ... ... ... ... ... ., ,
888888888888888888888888888 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 00000000 1 1 1 1 1 1 1222.222233333 01 2457891,245689123568902356 1 59371 5937159371 59371593715 JULIAN DATE - 6
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, #;y FIGURE 3-5 CPAL ENVIRONMENTAL MONITORING SY3HM GROSS BETA AR PARTICUIATE 3J' (ricultES PER CUBIC METER)
COMMON LOGARITHM PIDT , PLOT N' SAMPIE STATION ACTIVnT VS. JUI. TAN DAM ST.AR AT 'nIE POINTS PLOT OF CONTROI. Avuvuf VS, JULIAN DATE DIAMOND AT TIIE POINTS PLANTaBSEP POINTa24 4 ACTIVITY, ' . $ 0.4000 - 0.2000 - 0.0000 5
- 0 . 2 0 0 0 --
- 0 . 4 0 0 0 --
--0 . 6 0 0 0 --
-0.8000 -
-1.0000 f n
--1.2000 - // '
-1.4000 - ,
--1.6000 - '
-1.8000 i ,
-2.0000 888888888888888888888888888 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1' t 1 '
OOOOOOOO1 1 1 1 1 1 122'2222233333 012457891245689123568902356 159371 5 9 3 7 1 5'O 3 7 1 59371593715 JULIAN DATE. v P
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4 I I FIGURE 3-6 , CPAL ENVIRONMENTAL MONITORDIG SYSTEM l GROSS BETA AIR PARTICUIATE (PICURIES PER CUBIC METER) ' COMMON LOGARITHM PLOT PLOT OF SAMPLE STATION ACTIVITY VS. JULTAN DATE STAR AT 'ITIE POINIS . PLOT OF CONTROL Atinvut VS. JULIAN DATE DIAMOND AT THE POIh7S . PLANT =BSEP POINT =45 - ACTIVITY C 0.4000'- ~ 0.2000 -" 0.0000 -
-0.2000 -"
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888888888888888888888888888 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 .1 000000001 1 1 1 1 1 1222222233333 ' 0' I 2457891245689123568902356 1 59371 593715937I 59371593715 - JULIAN DATE 5 h s
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CP&L ENVIRONMENTAL MONITORING SYSTEM GROSS BETA AIR PARTICUIATE (PICURIES PER CUBIC METER) COMMON LOGARIIHM PLOT PIDT OF SAMPLE SIATION At;nvar VS, JULIAN DATE STAR AT THE POINTS ' PLOT OF CONTROL Atinvnx VS. JULIAN DAIE DIAMOND AT THE POINTS PLANT =BSEP POINT =74 ' ACTIVITY 0.4000 - 0.2000 -- , 0.0000 - ~
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TABLE F2 : 1 Summary of Average Concentration and Frequency of l
- - Detection for Radionuclides in Quarterly Composite -
- 3 l Gamma Scans for Air Particulate Filters 4
'}
Sr-89 pC1/m 3 .
.s .
4 e Indicator Locations Control ; R y_ . I First Quarter 1.64 E-2 (6/6) 6.63 E-3 - f .4 Second Quarter 7.54 E-3 (4/7) . < 4.1 ~ E-3 - 1 I2 Third Quarter 2.98 E-2 (3/7) 52.21E-3 E ~
.I
^
Sr-90 pCi/m3-
~
_ t Indicator Locations Control ~ - First Quarter 5.76 E-4 (2/6) < 6.85 E-4 ~ Second Quarter 1.68 E-3 (1/7) 51.97 E-3 Zr-95 pCI/m 3 Indicator Locations Control First Quarter 4.41 E-2 (6/6) ~ 3.58 E-2 Second Quarter 4.56 E-2 (6/7) 4.64 E-2 Third Quarter 7.93 E-3 (2/7) 16.00 E-3 Ru-103 pCi/m 3 Indicator Locations Control First Qu'arter 2.73 E-2 (6/6) 3.47 E-2 Second Quarter 1.84 E-2 (6/7) 1.77 E-2 } Ru-106 pCI/m 3 Indicator Locations Control First Quarter 3.85 E-2 (1/7) 16.00 E-2 . Cs-137 pC1/m 3 - Indicator Locations Control - Second Quarter 7.09 E-3 (5/7) 4.04 E-3 Third Quarter 2.70 E-3 (2/7) 13.00 E-3 4 N 43
p p;; c .: , 4 * %f- :g 3 ) ?; ~
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TABLE 3-2 (continued) ' }lg a Ce-141 pC1/m 3
. .y, - . &s Indicator Locations Contral g_ 2r ' ; 3 gq.
g' .
.39
~ 2.09 E-2
~
First Quarter 2.26 E-2 (6/6) - 1
~
] Second Quarter 1.20 E-2 (5/7) 1.11 E-2 '
l 6 Ce-144 pCI/m3 - x -m
~
Indicator Locations Control
~
~
First Quarter 2.57 E-2 (5/6) -2.00 E-2 ~ Second Quarter 5.46 E-2.(6/7) ~ 7.53 E-2 Third Quarter 9.94 E-3 (6/7) 7.25 E-3 e e
\,j m
e dim 4/4
p . ir The only radionuc!!de solely attributed to Brunswick operations for all air samples in 1981 was manganese-54. Station 23 (Projected Maximum Annual h Concentration Point Northeast) revealed manganese-54 at the concentration 3 of 1.66 E-3 pC1/m for the second quarter. The following are doses and ' assumptions from Regulatory Guide 1.109 for Inhalation of manganese-54 in - #
- ?-
air, using the average concentration of 1.38 E-3 pC1/m 3 which includes -
~
typical minimum detectable activities for the first, third, and fourth _ 3 quarters: - Infant Child Teenazer Adult Inhalation m3 /yr 1400 3700 8000- . 8000
~
Dose Factor (mrem /pCl) 7.14 E-4 4.26 E-4 2.48 E-4 1.75 E-4 - Dose to Lungs (mrem /yr) 0.0014 0.0022 0.0027 0.0019 Determination of iodine-131 in air via charcoal was made using gamma
~
spectrometry. ~ No lodine-131 was detected for the entire year. 3.2 Milk Samples (O3 _ Analysis of weekly milk samples showed measurable concentrations of lodine-131 in 12 of 62 indicator station samples and 0 of 52 Control Station samples.
~
Eleven of the 12 detectable lodine-131 samples were at Station 35 (Stevens Farm). The absence of lodine-131 at the milk control station, plus the close proximity of the Stevens' Farm to the Brunswick site (0.6 mi S.E.), and in the absence of another apparent source of activity, these concentrations are attributed to the Brunswick Plant. The dose to an infant's thyroid for an ~ entire ye t's intake of milk can be calculated using assumptions contained in Regulato;y Guide 1.109. Using an lodine-131 concentration in milk of 0.46 . pC1/1 compiled from all detectable I-131 measurements from Station 35, the annual dose to the infant's thyroid becomes 2.11 mrem /yr. This thyroid dose is much lower than the corresponding dose estimate of 28 mrem /yr given in the Brunswick Final Environmental Statement for this milk location. q 45
4
- n. . ,.
( , FIGURE 3-8 . CS-137 ACTIVITY IN MILK SAMPLES FROM STATION 35 (PCI PER IIIER) , CS-137 ACTIVITIES LESS IIIAN MDA WERE OMITIED . AVERAGE MDA=9.0 PCI PER LITER - UNIT 2 UNIT 1 ACTIVITY seersTAnT.Ur aser: Tant.ur
- 3. 00E+ 02- ,
; 4 2.00E+02 g : n ) -
e '
- . JL
- s a 1.00E+02- .a A
u u [ h-x . m J , 0.00E+00 i i i i i i i i i i i i i e i i i i i i 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 8 8 8" 8 2 2 3 3 4 4 5- 5 6 6 7 7 8 8 9 9 0 0 1 1 0 3 0 3 0 3 0 3 0 3 0 3 0 3 0 3 0 3 0 3 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 1 4 1 4 1 4 1'4 1 4 1 4 1 4 1 4 1 4 1 4 JULIAN DATE. - 9 t 54
, 4:-.
+ ' +
8.
- WM ll fdl& %WW' G:mm31sotopic analyses of monthly composited milk samples rash bited the
(( same general radionuclide concentrations as during the prMdonal Period. Milk Station 35 (Stevens' Farm) continued to show eley lehels of s 3 ceslum-137 in milk (11 of 11 samples, of which 2 samples were~M as
~
nonroutine measurements) averaging 69.2 pC1/l. Figurekdesdis the - ' ()
~
history of ceslum-137 measurements at'the Stevens' Farm,fdn'tk2g back to > 1972; the source cannot be attributed to Brunswick Plant eff! -
~
~
Radiostrontium analyses indicated essentially no change in strontium-89 and strontium-90 levels in milk compared to corresponding preoperational levels. The 1981 average strontium-90 concentration in milk was 6.2 pCl/1, com-pared to 9.0 pCi/l during the preoperational period.
~
3J Vegetation - Terrestrial vegetation is sampled quarterly at four locations. Pine needles are used as the sample media because of its availability for any location any season. The high surface area on pine needles enables this particular sample type to collect air particulates rather efficiently and makes it one of the O -
-o t easitive tedic tors tor detecti s ' tiout- -
Gamma Isotopic analysis revealed the presence of .several fission products from fallout due to nuclear testing by the People's Republic of China on October 16, 1980. All concentrations are comparable to those detected at the Control Station as shown in Table 3-3. ~ TABLE 3-3 Summary of Detectable Radionuclides for 1981 in Terrestrial Vegetation Mean (Frequency) pC1/g (dry) Radionuclide Indicator Locations Control Mn-54 0.-625 (6/12) < .0650 (0/4) Nb-95 1.79 (5/12) ~1.04 (3/4) Sr-95 1.47 (9/12) .794 (3/4) Ru-103 .253 (9/12) .202 (3/4) Cs-137 .278 (9/12) 1.43 (4/4) n La-140 .0855 (1/12) < .0650 (0/4) V l Ce-141 .603 (8/12) .735 (2/4). l Ce-144 1.07 (12/12) .845 (4/4) 47 I l..
m -.. w m. 2 :w , a y f Cattle fodder and feed (pasture grass) sampled monthly revealed the same 4 short-lived fission ' products exhibited in terrestrial vegetation. These radio- _ nuclides are summarized in Table 3-4. The source for these activities is g - fallout from nuclear testing. . ,
;m EI TABLE 3-4 '"
g . [ 5
~ Summary of Radionuclides Detected.for 1981 -
2 Fodder Samp)les PCI/g(dry .
- i. _ =
Radionuellde Indicator Locations Control -
~
[ Mn-54 < .0650 .0451 - Nb-95 1.57 .643 Zr-95 1.25 - 1.13 Ru-103 .404 .264 Cs-137 .417 .136 La-140 < .0650 .133 Ce-141 .623 .676 Ce-144 1.43 .797 Hg-203 ~< .050 .0447 Food crops sampled during the growing season revealed a single incidence of lQ^# ' Zr-95, Ru-103, and Ce-141 at concentrations below the typical minimum detectable activity. Ceslum-137 was detected in 3 of 3 saniples collected at -
' ~
the Control Station averaging 3.05 E-1 pC1/g (dry). 3.4 Soll The ten soll samples (sampled at three-year intervals) were collected April 6, 1981, for radiostrontium and gamma analysis. All strontium-89 and 90 results were less than minimum detectable activity. The results of the gamma analysis revealed four-fission products as summar-Ized in Table 3.5. o r 48
o' 77 . L ,, f, q,
,;.g TABLE 3-5 'h Summary of Fission Products Detected ^
in Soll Samples for 1981 A j Concentration
~
Sample ~ ~ '~ Radionuclide - pCl/r (dry) Station .
~
Nb-95 0.798 SS-10
~
0.115 - SS-18 0.I29 _ 22
~
0.041 SS-35 -
~ Zr-95 0.050 55-24
^
Ru-103 0.023 S5-24 0.037 . 55-41 -
~
Cs-137' 0.085 SS-2
< 0.023
'- 55-10 0.246 SS-18 0.026 S5-23 (PMAC) 0.305 -
55-22 . 0.067 55-24 0.094 55-27 0.108 55-35 73 0.508 SS-37 (Control) () 0.199 SS-41 _ Niobium-95 and cesium-137 were detected at sample stations that have been
~
previously denoted as control locations (Sample Station 22 is the Control ~ Station for air particulates, and Sample Station 37 is the Control Station for
~
solls). These locations were selected because they are unaffected by plant releases, thus indicating that both niobium-95 and cesium-137 are not plant related. ' Zirconium-95 and rutheniumn-103 were detected at concentrations just above its detection level. These radionuclides were also detected in other sample media during this same time period; therefore, these fission products are primarily attributable to fallout from nuclear testing conducted by the People's Republic of China on October 16,1980. Sample Stations 2,10,23, and.27 showed ceslum-137 concentrations at less than 0.01 pC1/g (dry) which are considerably lower than the other five sample stations. These stations are very sandy with good drainage and have been O excavated or backfilled within the last eight or nine years. Cesium-137 at V 49
l 4;}v
~
hy k Sampla Ststion 35 (St:;vens' Farm) has similar charreteristics as tha abov2 i j locations with only one difference; the disturbances of the soil at this location has been minimal in contrast to the above locations. However, the ' l I ' observed Cs-137 concentration in still comparable to the preoperational data .; (see Table 3-6). '
- 4 TABLE 3-6 . -
Cesium-137 in Soll Samples at Station 35 - (Stevens' Farm) ' Cesium-137 Date - pC1/g (dry)
- June 4,1973 0.52 -
1 June 5,1973 0.94 ' ' April 4,1974 1-. 60 . March 21,1975* April 24,1975 0.94 April 4,1978 0.63 ,..f -- April 6,1981 0.11 - -
-
- March 21, 1975, Brunswick Unit 2 achieved criticality and went into '
commercial production on November 3,1975. . M
. -g C 3.5 Surface Water -
+ !
^
, ~;
Surface water is sampled monthly at five locations and analyzed for groes . beta, radiostrontium, tritium, and gamma emitting radionucildes. - Gross beta activity was measurable in 40 of 80 samples analyzed averagirig 2.80 E+2 pCl/1. This average is comparable to the Control Station average of 2.57 E+2 pCl/1. Radiostrontium and tritium analyses revealed no measurable activity at any location. Gamma analyses revealed only naturally occurring radionucildes. 3.6 Fish Fish samples were collected quarterly and analyzed for gamma emitters. The radionuclides detected are given in Table 3-7 and are attributed to plant-
, liquid releases.
U . 50
, p s . -, s i+;. - .
~, ,, 55
,7 .
- v. .
TABLE 3-7 Average Concentrations and Frequency of Detection ~
for Radonuclides Observed in Fish Samples During 1981 f
) . pC1/g (dry)
- d. .
,i [ ,
Location Mn-54 Co-60 Ca>-137 .
.[-
Discharge Canal 0.0843 (2/4) 0.215 (2/4) 0.183 (2/4) Ocean Near 50.065 (0/4) 10.065 (0/4)
- Discharge Outfall 10.070 (0/ )
~ ~
The dose for an average adult's fish consumption for the entire ye~ar, based on $ the assumptions of Regulatory Guide 1.109 is summarized in Table 3-8. TABLE 3-8 Dose (mrem /yr) Computed From Eating F'Ish Out af the Discharge Cad Organ Dose Liver 0.144 Kidney 0.048 GI-Li 0.0 68 Total Body 0.105 A . U - 3.7 Shrimp, Benthic Organisms, Beach Sand, Oysters, and Groundwater -
~
Shrimp, benthic organisms, and beach sand ' collected semlannually and analyzed for radiostrontium and gamma emitters revealed no measurable radioactivity. . . Oysters collected semiannually and analyzed for gamma emitters revealed no l measurable radioactivity. L Groundwater samples collected quarterly and analyzed for tritium and gamma emitters revealed no measurable radioactivity. 3.8 Bottom Sediment and Aquatic Vegetation Bottom sediment and aquatic vegetation collected semiannually at six locations are analyzed for radiostrontium and gamma emitters. Several t] fission products (Sr-89, Sr-90, Zr-95, Nb-95, Ru-103, Cs-137, Ce-141, and 51
y, O Ce-144) were detected during 1981 in both sample medias. The presence of these radionuclides is consistent with similar data obtained in air particulates and surface water (fresh water lake in South Carolina) at H. B. Robinson Plant during 1981. The major contributor for these fission products is from 4 1 { the Chinese nuclear testing on October 16,1980, through the rainfall run-off, - transport mechanism. _ e Activation products (Mn-54 and Co-60) were also detected in bottom sedi- f ,. ment samples during 1981. The highest concentration exceeded the minimum detectable activity by a factor of 3.1. These radionuclides are attributed to Brunswick Plant. Bottom sediments are not consumed by man; therefore, no dose ~ commitment estimates are given. The concentrations observed during 1981 are comparable to activities observed during past years. 3.9 Zooplankton
' Zooplankton' collected semiannually and analyzed for radiostrontium and gamma emitters revealed no detectable strontium activity during 1981. The gamma analysis revealed cobalt-60 in 2 of 7 samples at an average
- s. ) - concentration of 4.08 pCi/g (dry). All samples consisted of a large water fraction, and an attempt was made to separate water from the residue by filtration. - it became apparent that significant water fraction and the _
relative amount of plankton per sample was highly variable. Consultation with aquatic ecologists who perform plankton inventories showed that the
~
measures represent the state of the art. Classificatio~n was performed by microscopic examination of slides; the " biomass" inventories of plankton rely upon simple mechanical separation. These inventories represent plankton, plus other organisms such as algae, and concentrations of dissolved and suspended material once the filter has been dried. The cobalt-60 activities observed are attributed to Brunswick's operation, but the concentrations were questionable in units of pC1/g in zooplankton. Dose assessments to man - cannot be made using Regulatory Guide 1.109, and it appears to be insignifi ~ cant in comparison to other aquatic sample media. q N 52
. ;.+ c;wyawA .n' 3.10 External Radiation Dose Environmental dosimetry data did not show any significant changes from the - corresponding data of previous years. Station 23 (projected highest X/Q q,__,
~
. location) continued to show the highest average doses (69.7 mrem /yr), which .~
has been noted in. previous reports.
- w
. 3.11 Summary .
In summary, the following statements can be made in regard to all radio-active effluents (air particulate, gaseous, and liquid) by the Brunswick Steam . Electric Plant:
- 1. All detectable radioactivities have been below the levels set forth in the Code of Federal Regulations, Title 10, Part 20.
- 2. The observed cesium-137 elevated levels of radioactivity observed during 1981 were not attributed to BSEP and has returned to the expected environmental activity levels (milk from Steven's cow).
]t.- .
- 3. The radioactivity released from the Brunswick Steam Electric Plant has not significantly increased the amount of radioactivity detected in the environs surrounding the plant.
- 4. The 1,685 environmental analyses performed during 1981 demon-strates that the Brunswick Steam Electric Plant and the environ-ment can exist in harmony and produce electricity safely while ensuring the safety of the general public.
- 5. With the present environmental radiological surveillance program, the Brunswick Steam Electric Plant should continue to economi-cally produce electricity for the use of the customers of Carolina Power & Light Company.
[ N, 53
a = <
~ , , , ,,
4.0 MISSED SAMPLES AND ANALYSES
^3 4.1 Aquatic Venetation u/
Collection of aquatic vegetation samples at Station 29 (0.5 miles ~ east of- -
-discharge outfall) and Station 31 (0.5 rnlles west of discharge.outfall) was - '
attempted ,during the fist six months of 1981. These attempts were unsuccessful since there were no permanent beds'of same' at the required sampling stations. - 4.2 Fodder and Feed No fodder samples' were available at Station 35 (Stevens' Farm) during January, February, March, and December 1981. No fodder samples were available at Station 36 (Lewis' Farm) for the month of January 1981. No fodder samples were available at Station 37 (Johnson's Farm) for the month of November 1981. Station 36 was discontinued at.the end of March 1981 since the dairy went out of business (6 additional missing samples). The facilities operating Licenses DPR-71 and DPR-62 were amended showing the i deletion of Station 36 (Lewis' Farm) from the technical specifications on
~
September 28,1981 (Amendments 40 and 63). . - 4.3 Food Crops Food samples at Station 41 (Highway 211,0.25 miles east of Highway 133) is - a roadside vegetable stand with locally grown vegetables. Due to the ' dry weather, the stand was closed most of the growing season. Samples were only available twice per growing season. Collard sample was substituted in its place from the plant site's garden located at the projected maximum annual concentration point - NE (0.6 miles NE). l 4.4 Milk
~ Milk samples were collected every Monday. There were 52 Mondays in 1981; therefore, having a possibility of 156 samples. No -milk samples were available at Station 35 (Stevens' Cow) for January 1981 through February 16, f.-)
V 1981, (7 weeks) due to cow being dry.
$4
g No milk samples were cvallabl2 ct Station 36 (L;wis' Farm) fr:m March 12, 1981, through the remainder of the year (43 samples) due to going out of j business. The facilities operating Licenses DPR-71 and DPR-62 ~~were e amended showing the deletion of Station 36 (Lewis' Farm) from the technical j specifications on September 28,1981 (Amendments 40 and 63). ~ {
. 1 4.5 Soll Eleven soll samples are collected on.ce every three years; however, Station ~36 (Lewis' Farm) was discontinued due to going out of business. The facilities operating Licenses DPR-71 and DPR-62 were amended showing the deletion of Station 36 (Lewis' Farm) from the technical specifications on-
~
September 28,1981 (Amendments 40 and 63). A
/
5.0 ANALYTICAL PROCEDURES s 5.1 Gross Beta s Gross beta radioactivity measurements are made. utilizing a Beckman Wide- ]~ beta Il proportion _al counter. The minimum detectable levels (99% confidence - level) are approximately 0.82 pCi per sample. _ Air particulate samples are mounted in 2-inch stainless steel planchets and counted directly. - Water samples are evaporated to a low volume, transferred onto a 2-inch tared stainless steel planchet, evaporated to total dryness, then counted on the Widebeta II with appropriate self-absorption correction, based upon sample weight. The Beckman Widebeta 11 proportional counter was out of service beyond repair for the months of November and December 1981, Strontium and sea water gross beta minimum detectable concentrations were not achieved as required per technical specification. An evaluation of the impact of reduced sensitivities were made prior to using Instrumentation with higher back-O scounds. . 55
,y '
,,QQ 5
5.2 Tritium .
~
3 Liquid samples requiring tritium analysis are first distilled. Five milliliters ' S of the distillate are mixed with 10 milliliters of liquid scintillation cocktall j
.and counted on a liquid scintillation counter for 100 minutes. The sensitivi- w
- ties are approximately 350 pCl/ liter at a 99% confidence level. - '
5J Iodine-131 Iodine-131 airborne concentrations 'are quantified by the Ge(L1)-ND4420 & gamma spectrometry system. The cartridges are placed on the detector an'd each charcoal cartridge is counted individually. Iodine-131 in milk is analyzed 'by use of anion exchange resin, sodium hypochlorite leach, and organic extraction. lodine is precipitated as silver lodide, collected on a tared filter, dried, and counted on a beta-gamma coincidence system. The minimum detectable concentration at time of count is less than 0.5 pC1/ sample at a 99% confidence level. g 5.4 Strontium-89, 90 . Strontium is removed from environmental samples by the following methods: _
^
(1) leached with dilute acid from air filters, sediment, and soll; (2) direct precipitation from both fresh and saline water; and (3) absorption as Sr*
- from milk and vegetation onto a cation exchange resin column.
In all cases strontium is precipitated as strontium carbonate, collected on a tared filter, dried, and counted on the Widebeta II with the exception of fourth-quarter's analysis. 5.5 Gamma him,rmi,1 Ge(L1) , Gamma spectrum analysis utilizes a lithium-drif ted germanium detector with
. a thin aluminum window housed in a steel and lead shield. The analyzer system is a Nuclear Data 4420 with ND812 computer. Table 5-1 summarizes minimum detectable concentrations derived from instrument sensitivity, h based upon a blank sample background at 99% confidence level.
56 n
s . - g-
., n -a e am y yx' ' * .-
g ll ,
\
Air particulata composites ara fitted int 3 G Petri d o '
; 'n -
I k. r Liquid samples are boiled down to a small volume, lene beaker, and analyzed directly. . 4 [: > 5 e2 : -
- , I cm yy>-
Bottom sediment and soll are dried, weighed, ahik [' beaker. ~
,i;;'
i W: ..->
' ,39;
~
*
- mfg MM . , ., f ,
Fish samples are cleaned and dressed similar to meal' ~ ' S and shrimp are separated from any shell. 'These saQgMM; st . 100 C and ground to produce a homogeneous mixture. Qghfa _ polyethylene beaker and analyzed. ,. v. 4. '
. ~ . .;s.
- Q; 9 ; ; -
Zooplankton, benthic organisms, and terrestrial and aqutic dried at 100 C ground and placed in containers to be analyzed. 3 J_ _ 5.6 Thermoluminescent Dosimetry ' ' '
~
Each area monitoring station includes a polyethylene packet, which is an j g opaque polyethylene bag containing five each calcium sulfate doelmeters,12 , mm diameter by 0.4 mm thick. The packet is light, tight, and weatherproof. ., A standard annealing cycle is used to prepare the dos 1 meters. Following ' receipt from the field, each dosimeter is read under nitrogen flow, utillaing Teledyne TLD-7300 Readers. This Instrument integrates the light' photons , emitted from traps deexcited above 150'C. The lower energy traps are auto ' matically eliminated through a preheat cycle. Calibration is checked monthly using dosimeters irradiated to known doses. Prior to, during,~ and following the measurement of each dosimeter batch, the instrument ls checked through use of an internal constant light source as a secondary standard. The instrument background through drk current and. other ' electronic noise is never greater than ten mrem equivalent and is typidally two mrem equivalent. .
~
The dose reported is corrected for dose received in transit and storage' through the use of control dosimeters. G. . 3 57
o ,
., -A?;,;
.k i,
s g TABLE 5-1 , Typical Minimum Detectable Concentrations '.
?
Ge-Li Cansna Spectrometry .g3 Air Samples .-
~
-2 Cs-134 1.6 x 10 2 PCi/M -
[c, Cs-137 1.6'x 10 -2 -
~
Ba-140 5.2 x 10 -2 ' La-140 3.2 x-10 ~ Other Expected 1.2 x 10_ to .
. Gansna Emitters 1.2 x 10 Water Samples Cr-51 80 pCi/1 Co-58 8 . Co-60 8 Mn-54 8 Cs-134 9 Cs-137 9 Ba-140 30 La-140 20 h -
Other Expected Gamma Emitters 80 8 to Soil and Bottom Sediments Cs-134 35 pCi/kg (dry) Cs-137 35 Cr-51 - 280 Co-58 30 Co-60 30 Mn-54 30 Other Expected 30 to Gamma Emitters 300 Fish, Shrimp, Ovsters, Benthos, and Vegetation I-131 13 pCi/kg (wet) Cs-134 14 -
- Cs-137 13
'Cr-51 110 Co-58 12 Co-60 13
~
Mn-54 12 Other Expected 11 to Gamma Emitters 120 58 i a}}