BSEP-86-0581, Environ Surveillance Rept,1985
| ML20211P318 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 12/31/1985 |
| From: | Dietz C, Pasteur R, Shearing R CAROLINA POWER & LIGHT CO. |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| BSEP-86-0581, BSEP-86-581, NUDOCS 8703020340 | |
| Download: ML20211P318 (50) | |
Text
. - . - . -. __ _ - - -
,0 ,
- s*
Environmenta Surve.d ance
- Report January 1,1985 - December 31,1985 J BRUNSWICK STEAM ELECTRIC PLANT CAROLINA POWER & LIGHT COMPANY p s m m iir y,y
>l l
+
4 Shearon Harris Energy & Environmental Center Carolina Power & Light Company New Hill, North Carolina I
ENVIRONMENTAL RADIOLOGICAL MONITORING REPORT FOR BRUNSWICK STEAM ELECTRIC PLANT JANUARY 1 THROUGH DECEMBER 31, 1985 Prepared by:
%s MR ~
Roger D. Pasteur Senior Specialist - Environmental
- l Approved by:
1
! J l . A. Au Ronald L. Shearin Project Specialist - Environmental l
s 4
TABLE OF CONTENTS P_ age
1.0 INTRODUCTION
................................................... 1-1 2.0 PROGRAM
SUMMARY
................................................ 2-1 3.0 INTERPRETATIONS AND CONCLUSIONS................................ 3-1 3.1 Air Samples.............................................. 3-1 3.2 Milk Samples............................................. 3-1 3.3 Vegetation--Food Crops................................... 3-1 3.4 Soil--Shoreline Sediment................................. 3-1 3.5 Bottom Sediment.......................................... 3-2 3.6 Surface Water............................................ 3-3 3.7 Fish'and Invertebrates................................... 3-3 3.8 G rou ndwa t e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 3.9 External Radiation Oose 3-3 3.10 Summary.................(TL0)............................
................................. 3-4 4.0 ANNUAL LAND-USE CENSUS......................................... 4-1 5.0 MISSING SAMPLES AND ANALYSES................................... 5-1 5.1 Air Cartridge and Air Particulate........................ 5-1 5.2 Food Crops............................................... 5-1 5.3 M11k..................................................... 5-2 5.4 TL0...................................................... 5-2 6.0 ANALYTICAL PROCEDURES.......................................... 6-1 6.1 Gross Beta............................................... 6-1 6.2 Tritium.................................................. 6-1 6.3 6.4 Iodine-131............................................... 6-1 Gamma Spectrometry Ge(L1)................................ 6-1 6.5 Thermoluminescent Dos 1 metry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 6.6 EPA Laboratory Intercomparison Program................... 6-3 6.7 LowerLimitsofDetection(LLD).......................... 6-3 7.0 LAND-USE CENSUS................................................ 7-1 t
5 i
i
, s
.O LIST OF TABLES Table P_aage 2-1 Environmental Radiological Moni toring Program. . . . . . . . . . . . . . . . 2-3 2-2 Environmental Radiological Monitoring Program--Summary....... 2-12 3-1 Gross Beta Air Particulate Activity Averages Preoperation, 198 3 , 198 4 , 198 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 3-2 Dose Commitments from Fish and Invertebrates................. 3-6 3-3 Historical TLD Results....................................... 3-7 4-1 Land-Use Census Di stances to Locations of Interest. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4-2 Land-Use Census Listings of Gardens Within Three Miles....................... 4-3 6-1 Typical Lower Limits of Detection (LLD) Ge(L1)
Gamma Spectrometry........................................... 6-4 l
l l
l l
11
s 4
LIST OF FIGURES Figure P_a!Le 2-1 Locations of Radiological Environmental Direct RadiationMonitors(TLDs)................................... 2-7 2-2 Locations of Radiological Environmental Direct Radiation Monitors (TLDs)................................... 2-8 2-3 Locations of Radiological Environmental Direct RadiationMonitors(TLDs)................................... 2-9 2-4 Locations of Radiological Environmental Waterborne and Ingestion Pathway Stations.............................. 2-10 2-5 Locations of Radiological Environmental Air Monitoring Stations......................................... 2-11 3-1 Plot of Air Particulate Gross Beta Activity by Date at Location 200 Versus Control Location Activity............ 3-9 i
3-2 Plot of Air Particulate Gross Beta Activity by Date at Location 201 Versus Control Location Activity............ 3-10 3-3 Plot of Air Particulate Gross Beta Activity by Date at Location 202 Versus Control Location Activity............ 3-11 3-4 Plot of Air Particulate Gross Beta Activity by Date at Location 203 Versus Control Location Activity............ 3-12 3-5 Plot of Air Particulate Gross Beta Activity by Date at Location 1200 Versus Control Location Activity........... 3-13 l 3-6 Plot of Air Particulate Gross Beta Activity by Date at Location 1201 Versus Control Location Activity........... 3-14 i
' 3-7 Plot of Air Particulate Gross Beta Activity by Date at Location 1202 Versus Control Location Activity........... 3-15 3-8 Plot of Air Particulate Gross Beta Activity by Date at Location 1203 Versus Control Location Activity........... 3-16 3-9 Bottom Sediment Activity at Stilling Pond................... 3-17 l
111
o 0
1.0 INTRODUCTION
The 1985 Annual Radiological Environmental Operating P.eport for the Brunswick Steam Electric Plant (BSEP) has been prepared in accordance with Technical Specification 6.9.1.7. This report is being submitted in accordance with Technical Specification 6.9.1.6 and applies to both BSEP Units 1 and 2 (Licenses DPR-071 and DPR-062, respectively).
4 The Brunswick Steam Electric Plant (BSEP) consists of two boiling 2
water reactors with a design rating of 1642 MWe . net. Commercial production was initiated by Unit 2 on November 3, 1975, and by Unit 1 on March 18, 1977.
The BSEP is located approximately 2.5 miles north of Southport, North Carolina. This location is near the mouth of the Cape Fear River, which is the source of condenser cooling water. The cooling water is then discharged into the Atlantic Ocean.
1 The plant site lies at sea level to 30 feet (MSL) surrounded by extensive swamps and marshes. Recreational beaches are located within 20 miles of the plant. Fishing and boating are popular i
activities in the area. Within 50 miles of the plant, less than half
! of the land is used for agriculture. The agricultural activities include small truck farms, cattle, and poultry farms as well as farms producing corn, soybeans, and tobacco. Most of the industrial l activity is in the Wilmington area, approximately 16 miles north of
, BSEP. Sunny Point Military Ocean Terminal is located approximately 4.5 miles north of BSEP. Pfizer Chemical Company, located 1.5 miles southeast of BSEP, manufactures citric acid. A shipping channel in the Cape Fear River intercepts the Atlantic Intracoastal Waterway near Southport.
l l
t 1-1 I
s 2.0 PROGRAM Sul0ERY 2.1 The purposes of the Environmental Radiological Monitoring Program are:
To measure any accumulation of radioactivity in the environment and to assess whether this radioactivity is the result of the operation of the BSEP.
To provide an evaluation of the environmental impact of operating releases of radioactive materials from the BSEP.
i
^
To compare population doses from environmental sample data with
! cnrresponding doses predicted in the Final Environmental Statement.
2.2 Technical Specification Monitoring--The sampilng program developed during preoperational surveillance provided the basis for the environmental
, monitoring program required by the BSEP Technical Specifications.
Details of this sampling program, including sampling type, distance, and 3
direction from the plant site, are listed in Table 2-1. Maps, including j the sampling locations with respect to the plant, are shown in Figures 2-1 through 2-5. Types of samples collected include air cartridge l (iodine), air particulate, fish and invertebrates, food crops, shoreline l sediment, surface water, and direct radiation monitoring.
I j 2.3 Non-Technical Specification Monitoring--To supplement the environmental monitoring program, additional surveillance of air cartridge, air t s at on i th s e type, d sta e a cat n l the plant site and is denoted by double asterisks (**).
i, 8eginning in the third quarter of 1980, groundwater samples have been
! taken from 17 wells at the Southport-Brunswick County Landfill to monitor for transport of rs)licactive material into the groundwater system. !
I .
l t
l 2-1 l
1 Bottom sediment samples were collected from the intake and discharge canals and the Cape Fear River in June and November 1985. The results are reported in Table 2-2.
I l
t 4
r 2-2
TABLE 2-1 EIN1900GfTAL RADIOUNICAL 8061TM116 PNGMel Winamisim $1EApe ELECTRIC PLAffT Sample Samptlag Type Sampiles Polet and Description Frequency Sample Site Sample Amelysis Air 200--I.0 mile SW Visitors Center tfeekly 10,000 cu ft todine Cartridge 201--0.6 mile E PMAC (300 cu a)
(AC) 202-1.0 alle $ substation--construction road 4
203-2.3 miles SSW Southport substation 204-23 miles lee Sutton Plant
- 1200** - 4.9 miles S$w Cas ell Beach at ocean discharge pumps 120l**--0.25 mile WSW discharge weir 1202es.-0.9 alle Nw Bethel Church Cemetery 1203**--0.6 mile SSE Spoll Pond N Air 200--l.0 mile SW Visitors Center tieekly 10,000 cu ft Gross Bete--weekly 0 Particulate 201--0.6 mIIe M PMAC (300 cu n) Composite Gamma-(AP) 202-1.0 mile $ substation--construction road Quarterly 203--2.3 elles SSW Southport substation 204-23 elles pee Sutton Plant
- 1200** - 4.9 mIIes SSW Caswell Beach at ocean discharge pumps 120l**--0.25 alle WSW discharge vele 1202**--0.9 elle set Bethel Church Cemetery .
I 120388--0.6 mile SSE Spoli Pond
- Control Station.
- Not required by technical specifications.
e TABLE 2-1 (Omatlemed)
Sample Sampilse Type SamptIas Polat and DescrIptles Freemency Sample SIse Sempie AnefysIs Fish 700-5.5 miles $5W Atlantic Ocean Sealannually 500 grams Gamms (FI) 701-5.5 miles S$W Atlantic Ocean when in season (met) 702-5.5 mIIes SSW Atlantic Ocean 703-Atlantic Ocean; control; location not spectfIed*
Food Crop 800-0.7 alle E Intake canal Monthly 500 grams 1-131, Gamma (FC) 801--0.6 mile SW discharge canal when evallable (met )
802-10 miles control; location not specified*
1800**--0.9 mile NW Bethel Church Cemetery 180l**--0.6 elle SSE Spoll Pond l Groundwater 1900-1916 - 4.4 miles W Brunswick County Quarterly 4 liters Gamma (GW)** Landfill 1917-1920-0.3 to 0.4 miles pedE BSEP Landfill y Shoreline 500--4.9 alles SSW discharge; beach Semiennually 500 grams Gamma
- Sediment (SS)
Surface 400--0.7 mile E Intake canal" Composite 4 16ters Gamma 1 Water 401--4.9 miles SSW discharge Sample Tritium
} (SW) canal at stilling pond
' Control Station ,
- Not required by technical specifications.
4
TAAlf 2-1 00matinued) .
Sample Samptlag Twoo Samallan Phlet and Oescription F.- _
Sample Slas Sample Analysis Olract 1 1.1 elles E Aefer to Figures 1-1 Quarterly Not Applicable Radiation 2 TLD Reedout 1.0 elle ESE l-2. 1-3. 1-4. and (TL) 3 0.9 elle SE l-5 4 1.1 elles $$E 5 1.1 miles 5 6 1.0 mile S 7 1.0 mile SW 4 1.2 miles W 9 1.0 mile Isar 10 0.9 mile les 11 0.9 afie feet 12 1.0 alle N 13 1.2 elle tee I4 0.5 elle E IS 0.9 mile ENE 16 1.0 mile WSW 17 1.5 miles ESE 14 1.7 alles SE 19 2.0 miles SSE 20 2.1 miles 5 21 2.9 miles SSW w 22 5.3 miles SW
& 23 4.6 elles WSW 24 3.0 miles W 25 8.7 elles teet 26 5.9 elles NW 27 5.0 mIIes NNW 28 2.3 elles N 29 2.0 miles lef 30 2.0 miles E 31 2.6 miles EE 32 5.7 miles E at Ft. Fisher AF8 33 4.3 miles E at Ferry Slip N.H. Co.
34 5.5 miles EE at Ft. Fisher Museue 35 7.2 mIIes EE at Kure Beach 36 9.3 elles NE at Caroline Beach 37 5.5 alles NW at Soiling Spring Lakes 38 11.0 miles W at Sunset Harbor 39 5.3 elles SW at Youpon Beach .
40 6.9 miles WSW at Long Beach 72 8.5 miles WSW at Ocean Crest Pier 73 10.9 miles WSW at Long Seech Pier 74 12.0 miles WSW at Blue Water Point 75 4.5 miles 5 at Ft. Caseell Bapt. Assy.
76 4.8 miles SSW at Caseell Seech 77 5.3 miles SSE at Bald Head Island 78 10.0 miles NE Hwy.133 at SR 1521 79 9.5 miles N SR 1539 at SR 1521 80 9.5 miles feet Hwy. 87 at SR 1513 SI 10.0 elles Isee Nideey iteed at Sit 1300 42 II.0 elles W Hwy. 211 at SR 1912
Following is a tabulation of the specific methods used in monitoring the gaseous effluent and liquid effluent pathways of exposure to man.
Pathway of Exposure to Man Media Sampled External Dose TLD Ingestion Pathway food Crops Fish and Invertebrates Samples Sediment (Shoreline and Bottom)
Grounc? water Surface Water Inhalation Air Samples
- 2-6
LOCATION.T CF RADIOLOGICAL ENVIRONMENTAL DIRECT RAOlATlON MONITORS (TLD's)
FIGURE g_1 fa A A g
.. . ,, a 2
,\M ,
+
, /
, r, ,
X a
jd ,
s 2
/
r i'
t t
/ P
/ \
,b gG
~
/
4 J
~I I f
a
-% _ _-- -_ a _4.**___t J a - 2 r 8~ - - ~ " " ~ * " ' - - " ' * * * * -
6 Y
,,y q %,
i 1 ,
! N If.j. '
(
i e i
i..\. <
(
o avow W *
)
B I
i
- i.s u!s k
\ \
l
=!
t, s i
$8
' is
[l up 1
s- .
s ie e ; 8 ,n l}1 \ s.
3 1 l
i n
/
- r# ,
0 LOCATIONS OF RADIOLOGICAL ENVIRONMENTAL DIRECT RADIATION MONITORS (TLD's)
FIGURE 2-3 WIWINGTON 7
~
~
s ,
3 O
J 4
l O, .
= wim oro~ [
- f I ,
t /
' 'I
,, .=
/
\u
}
,* isHan
I LOCATIONS CF RADIOLOGICAL ENVIRONMENTAL
' WATERBORNE AND INGESTION PATHWAY STATIONS SW SS FI FC f GURE2-4
. i
/ \
o
,( 6 sot s_,Mi o 6 Y
p
[
/
\\
/
i _
l
- 6. b Ok l
W% =
o NOT SHOWN Eli ^l##,#f0r1cinio
'^ '
/
i 2-10 d
TABLE 2-2 ENVIR0pa(NTAL RADIOLOGICAL MONITORING PROGRAM SuleWtY Brunsulck Steam Electric Plant Docket Numbers 324 and 325 Brunswick County, North Caroline Calender Year 1985 Type and Lower All Indicator Location uAdighest Annual Mean i leadium or Patheey Total No. of Lielt of Locations (2) Name, Control Locations j
Sampled or Measured Measurements Detection Mean Distance, and Mean Moon
- (Unit of Measurement) Perforand LLD (1) Range Direction Range (2) Range (2)
Clr Cartridge I-131 I3I 3.00E-2 All less than LL3 All less than LLD All less than LLD (pCI/m 3) 460 Air Particulate Gross Beta 4.00E-3 1.67E-2 (404/408) Southport Substation 1.91E-2 (51/51) 1.6X-2 (50/52)
(pC1/m 3) 459 I33 4.4X 4.8X-2 2.3 miles SSW 5.72E 4.8X-2 5.58E 3.09E-2 Gamme III N/A All less than LLD All less than LLD All less than LLD 36 Y Botton Sediment Games III 3.30E-2 1.75E+0 (6/8) Discharge Canal 3.05E+0 (2/2) AII less than LLD E (pCl/g, dry) 10 I4I 3.37E-l - 5.1X +0 at Stilling Pond 9.79E 5.IX +0
) Co-M 4.9 eIIes SSW ,
I Cs-137 2.10E-2 2.17E-1 (8/8) Discharge Canal 3.05E-1 (2/2) 2.38E-1 (1/2) 7.70E 4.49E-1 at stilling Pond 1.36E-l - 4.49E-1 (Single value) 4.9 miles SSW l hn-54 1.80E-2 l.ON-1 (4/8) Discharge Canal 1.19E-l (2/2) All less than LLD 7.05E 1.64E-1 at Stilling Pond 7.34E 1.64E-l 4.9 mIIes $$w l Fish and Gamme III 2.30E-2 3.65E-2 (1/6) Atlantic Ocean 3.65E-2 (1/2) 4.35E-2 (1/6)
! lavertebrates 12 ($1ngle value) at Discharge (Single Value) (Single Value)
I (pci/g dry) Cs-137 5.0 miles SSW i
I 4
TABLE 2-2 (continued)
ENWlH0peENTAL RADIOLOGICAL se0NITORING PROGRApe $1300ARY Brunsalck Steam Electric Plant Docket Numbers 324 and 325 Brusselck County, North Carolina Calender Year 1985 I Type and Lower All Indicator Location w/ Highest Annual Mean tendlum or Pathoey Total No. of Limit of Locations (2) Name, Control Locations Sampled or beessured Measurements Detection Mean Distance, and Mean Mean (Unit of Measurement) Performed LLD (1) Range Direction Range (2) P:^2- (2)
Broedloof Yogetation Gemme III S.00E-3 All less than LLD All less than LLD I.63E-2 (1/3)
(pC1/g met) 42 ($1ngle Value)
Cs-137 Ground.ater Gemme III N/A All less than LLD All less than LLD No Control (pCI/I) 84 (5)
Sediments - Gamme III N/A 488 less than LLD All less than LLD No Control Shoreline 2
" (pCI/g. dry)
Surface Water Gemme III N/A All less than LLD All less than LLD All less than LLD (pCI/t) 24 Tritium 5.20E+2 All less than LLD All less than LLD All less than LLD 24 TLD TLD Asadout i eR III I83 1.03E*O (169/169) PMAC - Intake Canal I.40E+0 (3/3) No Control (millires per week) 169 (6) 7.00E 2.10E+0 0.5 mile IE I.00E+0 - 1.90E+0
l FOOTNOTES TO TABLE 2-2 l 1. Lower limit of detection (LLD) is calculated based on 4.66 standard i deviations above background using typical sample size in a given
- counting time. Due to counting statistics and varying volumes, j occasionally lower LLDs are achieved. See Table 6-1.
4 2. Mean and range are based on detectable measurements only. The fractions of detectable measurements at specific locations are !
indicated in parentheses.
i i- 3. Air particulate and charcoal cartridges were collected weekly. There were 52 weeks in 1985 times 9 air monitor stations for a total of 468
! samples. Listed below are the samples that were collected but not
- used for this report due to low volumes.
- a. Location 200 April 29, 1985 Blown fuse
- b. Location 200 November 25, 1985 Tripped breaker i c. Location 200 December 30,*1985 Tripped breaker
- d. Location 201 February 18, 1985 Blown fuse
- e. Location 203 May 13, 1985 Blown fuse i i
- f. Location 1200 February 18, 1985 Filter lost during collection '
(only particulate filter ;
lost) i g. Location 1200 August 26, 1985 Blown motor :
! h. Location 1201 July 15, 1985 Blown fuse Location 1202 February 18, 1985 l
- 1. Electrical failure of sampler ;
{ 4. Bottom sediment samples were collected from the intake and discharge
- canal system semiannually from five locations for a total of ten j samples.
i j 5. Seventeen groundwater stations at the Brunswick County Landfill j require gusrterly gamma analysis for a total of 68 samples. Four i
stations at the Brunswick Steam Electric Plant Landfill require ganna l
analysis quarterly for a total of 16 samples.
i j 6. Environmental TLDs at 51 locations are sampled quarterly for a possible total of 204 samples. Thirty-five TLD readings were not
, used for this report and are discussed in detail in Section 5.4. ,
l This results in a total of 169 environmental TLD samples for 1985.
l l 7. Dependent on ambient background conditions.
- 8. Minimum sensitivity is approximately 1 mR. Refer to Section 6.5 for
- additional information.
1
- 9. Summary of genna analysis results in this report does not include the following naturally occurring isotopes since most environmental l samples contained some or all of these Be-7, K-40. T1-208. Pb-212, ;
Bi-212.81-214 Pb-214. Ra-226 Ac-228, and Th-234. i l
l t
! 2-14 1
i
3.0 INTERPRETATIONS AND CONCLUSIONS 3.1 Air Samples The gross beta results for air particulate samples collected during the year of 1985 are below the preoperational levels. All indicator station activities averaged 1.67E-2 pC1/m 3 compared to 3
9.83E-2 pCi/m over the entire preoperational monitoring period.
The 1985 average activity of control station samples was 3
1.63E-2 pC1/m . The gross beta plots in Figures 3-1 through 3-8 show each indicator station in comparison to the control station.
They verify no significant changes in the indicator location activities in comparison to data from previous years as shown in Table 3-1.
3.2 Milk Samples No milk sampling locations are currently identified.
3.3 Vegetation--Food Crops The technical specifications require vegetation sampling from two sectors with historically higher 0/Q values and at one location > 15 km to serve as a control location. Four gardens are maintained on the site boundary and satisfy the first requirement. All samples from these gardens revealed concentrations of < LLO. The control sampling locations provided four samples during 1985. Only one of the locations revealed Cs-137 activity at a concentration of 1.63E-2 pC1/g. All others were < LLD.
3.4 Soil--Shoreline Sediment The technical specifications require semiannual samples collected from a downstream area with existing or potential recreational value. The sample is collected from the beach near the ocean dis-charge location of the Caswell Beach pumping station. All values from the gama isotopic analyses were less than LLO.
3-1
1 i
3.5 totton Sediment--Intake / Discharge Canal System Additional sampling on the bottom sediments from the intake and discharge canals has been performed in a manner similar to the programs from previous years. Samples were collected in June and November 1965. The isotopes found in the bottom sediment that may be attributed to plant operations are cobalt-60 (Co-60), manganese-54 (Mn-54), and cesium-137 (Cs-137). The concentrations of radio-nuclides appear to be consistent with sampling deviations observed in previous samplings. The samples collected from the Caswell Beach Pumping Station have historically revealed the highest concentra-tions of radionuclides. This was also true for 1985. Cobalt-60 concentrations from this location for the June and November samples were 0.98 pC1/g and 5.13 pC1/g, respectively. This may be compared to an average Co-40 concentration of 5 to 8 pC1/g for the period from 1982 to 1984. Manganese-54 concentrations from this location were 0.07 pC1/g and 0.16 pC1/g, respectively. The activity of the bottom sediment in the discharge canal is not seen as a health hazard.
Sottom Sediment--County Landfill Bottom sediments were collected from five locations near the Southport-Brunswick County Landfill from Seaverdam Creek. Cesium-137 was present in four of the five samples with an average concentration of 3.72E-2 pC1/g and a range of 2.60E-2 to 4.82E-2 pC1/g. This is a typical concentration of Cs-137 in this region and is not indicative of transport from nuclear power plant opera-tions. The results continue to indicate that no migration of nuclides is detectable through the landfill system to the environs.
3-2
3.6 Surface Water Surface water is sampled monthly from two locations and analyzed for tritium and gamma-emitting radionuclides. In all samples, acti-vities were less than LLO.
3.7 Fish and Invertebrates Fish and invertebrate samples are collected semiannually when in season and analyzed for gamma-emitting radionuclides. Fish are collected as (1) free-swimmers and (2) bottom-feeders. Inverte-brates may include shrimp, oysters, arid crabs.
The gama analyses for fish collected in the Atlantic Ocean near the' discharge of the Caswell Beach pumping station revealed a single incident of Cs-137 with a concentration of 3.65E-2 pCi/g, dry. This may be compared to samples obtained during preoperational testing when Cs-137 was detected in 5 of 23 samples with an average con-centration of 1.7E-1 pC1/ gram. Table 3-2 provides dose assignments from the Cs-137 in the fish sample. The Cs-137 concentration of 3.65E-2 pC1/g dry corresponds to 8.05E-3 pC1/g wet. As indicated, the organ doses are less than 0.02 mres/yr and the total body dose is 0.012. The limits for organ and total body doses are 20 and 6 mres/yr, respectively, as per 10CFR50, Appendix !.
3.8 Groundwater Groundwater samples are collected and analyzed quarterly for gama-emitting radionuclides. All were found to be less than LLO.
(
i 3.9 ExternalRadiationDose(TLDJ Environmental dostmetry data did not show any significant changes from data collected in previous years. Location 14 PMAC (0.5 mile NE), was the location with the highest average dose as indicated by Table 2-2. Table 3-3 provides a historical review of results since 1980.
3-3
3.10 Sunnary All samples analyzed met the LLO requirements as established by Technical Specification 6.9.1.7.h and Table 4.12.1-1. In summary.
the analyses from the environmental media surrounding the Brunswick Plant confirm that the environmental impact of the plant during 1985 was nominal.
1 ,
1 I
.L i
i t
1 j
i 1
)
i I
l i
I r
i 3-4 J
TASLE 3-1 GROSS KTA AIR PARTICR ATE ACTIVITY AWERAGES FOR SIX-MONTH PERIGOS GlWARISON OF DATA 1973,1974 (PRE 0PERAT10ml) 1983.1984. AND 1985 (pC1/m3 )
Location 1st/73 2nd/73 1st/74 2nd/74 1st/83 2nd/83 1st/84 2nd/84 1st/85 2nd/85 AP-200 1.5E-2 2.9E-2 1.7E-1 1.1E-1 1.9E-2 2.2E-2 1.7E-2 2.1E-2 1.6E-2 1.7E-2 AP-201 - 3.1E-2 1.6E-1 1.2E-1 1.8E-2 2.2E-2 1.7E-2 2.2E-2 1.9E-2 1.6E-2
$ AP-202 -
3.4E-2 1.7E-1 1.1E-1 1.7E-2 2.0E-2 1.7E-2 1.9E-2 1.7E-2 1.6E-2 AP-203 1.GE-2 3.2E-2 1.5E-1 1.1E-1 1.7E-2 2.3E-2 1.7E-2 2.0E-2 1.8E-2 1.9E-2 AP-204 1.7E-2 3.2E-2 1.6E-1 1.0E-1 1.6E-2 1.9E-2 1.5E-2 1.8E-2 1.7E-2 1.7E-2 AP-1200 1.5E-2 2.8E-2 1.6E-1 1.1E-1 1.2E-2 1.8E-2 1.5E-2 1.9E-2 1.5E-2 1.4E-2 AP-1201 1.6E-2 3.1E-2 1.8E-1 1.1E-1 1.9E-2 1.9E-2 1.8E-2 2.0E-2 1.8E-2 1.6E-2 1
AP-1202 - - -- --
1.7E-2 1.8E-2 1.6E-2 2.3E-2 1.6E-2 1.5E-2 AP-1203 - - -- --
1.7E-2 1.9E-2 1.6E-2 1.9E-2 1.7E-2 1.6E-2 i
1 i
(.
> s TABLE 3-2 1
DOSE CWWITMENTS FROM FISH AND INVERTEBRAIES Assumptions are based on the maxir,um exposed individual. Calculations are modeled from Regulatory Guide 1.1J9. The Cs-137 concentration is 3.65E-2 '~
pC1/g dry, and 8.05E-3 pC1/g wet.
~
Child Teen Adult Consumption (kg/yr) 6.9 16 <21 Ingestionfactors(ares /pC1) -- -- --
Bone 3.27E-4 1.12E-4 7.97E-5 ,
Liver 3.13E-4 1.49E-4 1.09E-4 Total Body 4.62E-5 5.19E-S 7.14E-5 ,
+
Limits '
10CFR50 App. I -
(arem/yr)
Dose (ares /yr)
Bone 0.018 0.014 0.013 2d /~
/
Liver 0.017 0.019 0.018 .. Ze Total Body 0.003 '0.007 0.012 ,' '6 4
9 L
0
/
o l
l r
3-6 ,
r ^ ',
TABLE 3-3
- HISTORICAL TLD RESULTS (1980-1985)
YEAR LOCATION WITH HIGHEST AVERAGE OF ALL TLD MONITORING AVERAGE /RESULTS LOCATIONS /RESULTS 1980 PMAC 1.11 mrem / week 0.90 mrem / week
> 1981 PMAC 1.34 mrem / week 0.96 mrem / week 1982 PMAC 1.47 mrem / week 1.18 mres/ week 1983 PMAC 1.80 mrem / week 1.21 mres/ week 1984 PMAC 1.15 mrem / week 0.98 mrem / week 1985 PMAC 1.40 mrem / week 1.03 mres/ week o
I i
i 1
3-7
', i
w.
'% J INDEX FOR PLOTS 3 GROSS BETA ACTIVITIES AIR PARTICULATE SAMPLES Figure 3-1 Location 200' Figure 3-2 Location 201 4
Figure 3-3 Location 202 Figure 3-4 ,
Location 203 t,
Figure 3-5, '
Location 1200
, s, Figure 3-6 s Location 1201 Figure 3-7 Location 1202
~
, Figure 3-8 Location 1203 1
BOTTON SEDIMENT ACTIVITY Figure 3-9 I Discharge Canal at Stilling Pond L
i
, , , X 4
ll1 ,
s h
I ,
1 t
3-8 i
+\
t
CP&L ENVIRONMENTAL SURVEILLANCE GROSS BETA ACTMTY FOR AIR PARTICULATE SAMPLES
- FOR SAMPLE STATION 0 FOR CONTROL STATION
) PLANT SAMPLE COLLECTED FOR=BSEP POINT SAMPLE COLLECTED FROM-0200 0.0800-P :
C 0.07002
- I
- 0.06002 ,
i P :
- E 0.0500Z
! R
! 0.04001
- C
U 0.0300
! M 0.02002
! E : '
T 0.01002 '
! E :
R 0.00002
........ ....... .......,.,..... ....... ... .r9....... ....... ....... ..... ......... .......,.......,
0 2 2 2 2 2 1 1 1 1 0 0 0 3 1 9 6 6 3 1 8 6 3 0 8 5 3 1 J J F M A M J J A S O N D D A A E A P A U U U E C 0 E E N N B R R Y N L G P T V C C 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 DATE
CP&L ENVIRONMENTAL SURVEILLANCE GROSS BETA ACTMTY FOR AIR PARTICULATE SAMPLES
- FOR SAMPLE STATION O FOR CONTROL STATION i
PLANT SAMPLE COLLECTED FOR=BSEP PolNT SAMPLE COLLECTED FROW =0201 -
0.0800-P {
C 0.0700--
. g .
0.06001 P {
E 0.0500-R {
0.0400-C : .
U 0.03002 M 0.0200 T 0.01001 E :
R 0.00002 0 2 2 2 2 2 1 1 1 1 0 0 0 3 1 9 6 6 3 1 8 6 3 0 8 5 3 1 J J F M A M J J A S O N D D A A E A P A U U U E C 0 E E N N B R R Y N L G P T V C C 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 DATE
CP&L ENVIRONMENTAL SURVEILLANCE GROSS BETA ACTMTY FOR AIR PARTICULATE SAMPLES .
- FOR SAMPLE STATION O FOR CONTROL STATION PLANT SAMPLE COLLECTED FOR=BSEP PolNT SAMPLE COLLECTED FROM=0202 0.0800-P -
C 0.07002 I
b 0.0600-P :
E 0.05002 R {
0.0400-C U 0.03002 i
M 0.02002 <
E T
E 0.01005 f ,
R 0.0000-i....... ....... .......,,,.....,............... ............................. . ....... ....... .......,
0 2 2 2 2 2 1 1 1 1 0 0 0 3 1 9 6 6 3 1 8 6 3 0 8 5 3 1 J J F M A M J J A S O N D D A A E A P A U U U E C 0 E E N N B R R Y N L G' P T V C C 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 DATE e +
CP&L ENVIRONMENTAL SURVEILLANCE GROSS BETA ACTMTY FOR AIR PARTICULATE SAMPLES
- FOR SAMPLE STATION 0 FOR CONTROL STATION PLANT SAMPLE COLLECTED FOR=BSEP PolNT SAMPLE COLLECTED FROM-0203_
0.0800-P C 0.07002 1
{
0.0600-P -
E 0.05001 ,
R 0.04002 C
U 0.0300 M 0.02002 <
E T 0.01002 :
E R 0.00002 i....... ....... ....... .......,.......,.......,.......,.......,....... ..... . .......................,-
0 2 2 2 2 2 1 1 1 1 0 0 0 3 1 9 6 6 3 1 8 6 3 0 8 5 3 1 J J F M A M J J A S* O N D D A A E A P A U U U E C 0 E E N N B R R Y N L G P T V C C 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 DATE
.1
CP&L ENVIRONMENTAL SURVELLANCE GROSS BETA ACTMTY FOR AIR PARTICULATE SAMPLES
- FOR SAMPLE STATION
' O FOR CONTROL STATION PLANT SAMPLE COLLECTED FOR=BSEP PolNT SAMPLE COLLECTED FROM-1200 .
4 0.0800-1 P :
C 0.0700-I :
0.0600-P :
E 0.0500-R 0.04002 C
U 0.03005 I M 0.02002 <
E -
T 0.0100f : '
E :
l R 0.0000-i ........ .......,....... ....... ............... ....... ....... .......,..... ,,....... ....... .......,-
0 2 2 2 2 2 1 1 1 1 0 0 0 3 1 9 6 6 3 1 8 6 3 0 8 5 3 1 J J F M A M J J A S 0 N D D A A E A P A U U U E C 0 E E N N B R R Y N L G P T V C C 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 DATE
-e-
CP&L ENVIRONMENTAL SURVEILLANCE GROSS BETA ACTMTY FOR AIR PARTICULATE SAMPLES
- FOR SAMPLE STATION O FOR CONTROL STATION
- PLANT SAMPLE COLLECTED FOR=BSEP PolNT SAMPLE COLLECTED FROM-1201,
- 0.0800-P -
C 0.0700--
I 0.0600--
? -
E 0.0500--
R -
0.0400--
C -
U 0.0300--
M 0.0200i 4
- E -
T 0.0100--
E -
R 0.0000-
................,...............i....... ....... ....... ............... ..... ,,....... ....... .......,
0 2 2 2 2 2 1 1 1 1 0 0 0 3 1 9 6 6 3 1 8 6 3 0 8 5 3 1 J J F M A M J J A S 0 N D D A A E A P A U U U E C 0 E E N N B R R Y N L G P T V C C 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 DATE
CP&L ENVIRONMENTAL SURVEILLANCE GROSS BETA ACTMTY FOR AIR PARTICULATE SAMPLES.
- FOR SAMPLE STATION O FOR CONTROL STATION PLANT SAMPLE COLLECTED FOR=BSEP POINT SAMPLE COLLECTED F F. 0 M = 1 2 0 2 -
i i 0.0800-P -
C 0.07002 I
b 0.0600-P :
E 0.05002 R
0.0400--
C U
0.0300-[
M 0.0200 E
T 0.01001 1 E R 0.00002 .
....... ....... .......i....... ....... ....... ....... ....... .......i..... . .......i.......i....... -
0 2 2 2 2 2 0 0 0 1 1 1 1 3 1 9 6 6 3 1 8 6 3 0 8 5 3 1 J J F M A M J J A S 0 N D D A A E A P A U U U E C 0 E E N N B R R Y N L G P T V C C 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 DATE
CP&L ENVIRONMENTAL SURVEILLANCE GROSS BETA ACTIVilY FOR AIR PARTICULATE SAMPLES
- FOR SAMPLE STATION O FOR CONTROL STATION PLANT SAMPLE COLLECTED FOR=BSEP POINT SAMPLE COLLECTED FROM-1203 0.0800-P C 0.07002 i :
P 0.0600i i
E 0.0500-
, R :
0.04002 C
U 0.0300f M 0.0200 T 0.0100-E : '
R 0.00002 l 0 2 2 2 2 2 1 1 1 1 0 0 0 3 l 1 9 6 6 3 1 8 6 3 0 8 5 3 1 l J J F M A M J J A S 0 N D D l A A E A P A O U U E C 0 E E N N B R R Y N L G P T V C C 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 DATE
1
. CASWELL PUMPING STATION (STILLING POND) i COBALT-60 '
MANGANESE-54 -
1 MDA 10 -
i P y .. I 's ,',
C ' i
'!I' 1. ! '- 's i
0 ' '
I 10 - l 1l l :
/ ,
'! : l \,
G ,'
' ll
.. 1. ;, ,' ',
s,
!! ; : i I 'j :'.!
's..'/
10 I g,
N l
-2 10 1 I I I I i 1 l
79 80 81 82 83 84 85 YEAR
__ _ _ __ _-.-_-___s
4.0 ANNUAL LAND-USE CENSUS Technical specifications require that a land-use census shall be conducted and shall identify within a distance of 8 km (5 miles) the location in each of the 16 meteorological sectors of the nearest milk j
animal, the nearest resident, and the nearest garden of greater than 50 square meters (500 square feet) producing broadleaf vegetation. The land-use census shall also identify within a distance of 5 km (3 miles) the location-in each of the 16 meteorological sectors of all milk animals and all gardens of greater than 50 square meters producing broadleaf vegetation.
Broadleaf vegetable sampling of at least three different kinds of vegetation may lwt performed at the site boundary in each of two different direction sectors with the highest 0/Qs in lieu of the garden census.
The land-use census shall be conducted during the growing season at least once per 12 months using that information that will provide the best results, such as by door-to-door survey, aerial survey, or by consulting l local agricultural authorities.
- The 1985 BSEP land-use census was performed in accordance with technical specification guidance. The door-to-door survey method was used in conjunction with U.S. geological survey maps, state road maps, and l, personal knowledge of the area. Local farm supply companies were also surveyed for their knowledge of milk animals in the area. The survey was j performed during June and July 1985.
Table 4-1 summarizes the locations of the nearest milk cow, milk goat, meat animal, residence, and garden in each of the 16 compass sectors.
Table 4-2 sumarizes the locations of gardens greater than 50 square meters in size which are located within a three-mile radius of the plant.
4-1
.n.-- -., , , - - - , . . - . _ - , , , . -
TABLE 4-1 DISTANCE TO THE NEAREST SPECIAL LOCATIONS FOR THE BRUNSWICK STEAM ELECTRIC PLANT (MILES)
Milk Milk Meat Sector Residence (Miles) Cow Goat Animal Garden N 0.9 -- -- --
0.9 j NNE 1.2 -- --
1.4 1.4 NE -- -- -- -- --
ENE -- -- -- -- --
E --
0.7 --
ESE 1.5 -- --
0.6 1.5 SE -- -- --
0.6 --
SSE 0.9 -- --
0.7 --
S 1.5 -- -- --
1.5 SSW 1.4 -- --
1.4 1.4 SW 1.0 -- --
1.0 1.0 WSW 1.1 -- --
1.8 1.1 W 0.8 -- -- --
0.8 WNW 1.0 -- -- --
1.0 MW 0.9 -- -- --
1.1 NNW 0.9 -- -- --
0.9 e
Distances are estimates from composite map--approximate error 0.1 miles. ,
4-2 L
9 TABLE 4-2 LISTING Of GARDENS WITHIN THREE MILES Sector Distance ESE 1.6 NNE 1.2 NNW 0.8 NNW 0.8 NNW 0.9 NW 0.9 NW 1.0 NW 1.1 S 1.5 S 1.7 S 1.9 S 1.9 S , 1.9 S 1.9 5 1.9 S 1.9 S 1.9 S 1.9 S 1.9 S -
1.9 S 1.9 S 1.9 S 2.3 S 2.4 S 2.6 SSW 1.4 SSW 1.5 SSW 1.5 SSW 1.5 SSW 1.5 SSW 1.5 SSW 1.6 SSW 1.6 SSW 1.7
! SSW 1.7 j SSW 1.7 l SSW 1.8 l SSW 1.8 SSW 1.9 ,
l 4-3
- --------..,,.-n,- , ------ .-n-, n -- - -
Table 4-2(continued)
Sector Distance
. SSW 1.9 SSW 1.9 SSW 2.0 SSW 2.0 SSW 2.0 SSW 2.1 SSW 2.1 SSW 2.1 SSW 2.1 SSW 2.1 SSW 2.1 SSW 2.2 SSW 2.3 SSW 2.3 SSW 2.4 .
SSW 2.5 SSW 2.5 SSW 2.5 SSW 2.5 SSW 2.5 SSW 2.7 SSW 2.8 SSW 2.8 SW 1.0 W 0.8 W 0.9 W 1.0 W 1.1 W 2.0 W 2.3 W 2.4 W 2.6 WNW 1.0 WSW 1.1 WSW 1.2 WSW 1.2 WSW 1.8 WSW 1.9 WSW 2.1 WSW 2.6 WSW 2.7 4-4
5.0 MISSED SAW LES A E ANALYSES -
5.1 Air Cartridge and Air Particulate Air' particulate and charcoal cartridges were collected weekly.
There were 52 weeks in 1985 times 9 air monitor stations for a total of 468 samples. Listed below are the samples that were collected !
but not used for this report due to low volumes.
Location 200--April 29, 1985--blown fuse Location 200--November 25, 1985--tripped breaker Location 200--December 30, 1985--tripped breaker -
Location 201--February 18, 1985--blown fuse T
Location 203--May 13, 1985--blown fuse Location 1200--February 18, 1985--filter lost during collection (onlyparticulatefilterlost) i Location 1200--August 26, 1985--blown motor Location 1201--July 15, 1985--blown fuse i
Location 1202--February 18, 1985--electrical failure of sampler 5.2 Food crops Samples were not available from any locations from February through April. Samples were not available from Location 802, Control, in January October, November, and December. Samples were also not available from Location 801 in May and August and from Location 1801 l in August.
5-1
_.,_,--,.m.-_
5.3 Milk No sampling locations are currently identified.
~
5.4 Thermoluminescent Dosimeters Some TLDs had contaminated lead filters which caused self-1rradiation and abnormally high results. The defective badges were contaminated during the manufacturing process when lead containing an abnormally high concentration of radioactive lead-210 (Pb-210) was used to make the filters which cover each phosphor. The con- .
taminated badges have since been removed from service and replaced by the vendor. CP&L procedures for badge testing now include a screening test for the presence of any contamination on new badges -
received. This is performed prior to placing the TLDs into service.
The following list identifies all TLDs from which results were not available. The list indicates that.14 TLDs were affected by the
- contaminated lead filters,16 were missing in the field at the time of collection, and 4 were damaged in the field. The plant staff has reviewed the locations where TLDs were missing in the field to attempt to reduce the frequency of loss of TLDs during future samplings.
Location 14--Third quarter--found damaged Location 15--Second quarter--missing in field Location 21--Third quarter--damaged Location 22--First quarter--missing in field i
- Location 25--Third quarter--missing in field Location 26--Fourth quarter--missing in field 5-2
- . . ~ - . - - - - - - - - - - . + - , , - - - - - . . . --- -
.-,m, - .--_,--.-,-m -
Location 27--Second quarter--missing in field '
Location 29--First quarter--found damaged Loc'ation 32--Third quarter--missing in field Location 32--Fourth quarter--missing in field Location 34--Third quarter--found damaged Location 35--First quarter--missing in field Location 35--Second quarter--missing in field Location 35--Third quarter--missing in field Location 37--First quarter--contaminated lead filters 4.
- Location 38--First quarter--contaminated lead filters i <
Location 39--First quarter--contaminated lead filters Location 40--First quarter--contaminated lead filters Location 40--Third quarter--missing in field Location 40--Fourth quarter--missing in field Location 72--First quarter--contaminated lead filters Location 72--Third quarter--missing in field Location 73--First quarter--contaminated lead filters Location 74--First quarter--contaminated lead filters 5-3
_ - - . , - . , _ . _ . , .-.--_.._.-.,n . _ - - 6 -, _,. cy,, - , . -- _ ,, .. - , .. - . - ., .... .._ ._-.
Location 75--First quarter--contaminated lead filters Location 76--First quarter--contaminated lead filters Loc ~ation 77--First quarter--contaminated lead filters Location 77--Fourth quarter--missing in field Location 78--First quarter--contaminated lead filters Location 79--First quarter--missing in field Location 80--First quarter--contaminated lead filters Location 81--First quarter--contaminated lead filters Location 82--First quarter--contaminated lead filters Location 82--Fourth quarter--missing in field 5-4 l
1 -
6.0 ANALYTICAL PROCEDURES 6.1 Gross Beta Gross beta radioactivity measurements are made utilizing a Tennelec Low-Background Alpha / Beta Counting System. The LLD is approximately 3
0.004 pCi/m for air particulates.
Air particulate samples are mounted in 2-inch stainless steel plan-chets and counted directly.
6.2 Tritium Liquid samples requiring tritium analysis are first distilled. Five mill 111ters of the distillate are mixed with ten milliliters of liquid scintillation cocktail and counted on a liquid scintillation counter for up to 300 minutes. The LLD is approximately 1200 pCi/1.
6.3 Iodine-131 Iodine-131 airborne concentrations are quantified by the Ge(L1) gamma spectrometry systems. The cartridges are placed on the i
detector and each charcoal cartridge is counted individually.
Iodine-131 in milk is analyzed by use of anion-exchange resin, sodium hypochlorite leach, and organic extraction. Iodine is pre-cipitated as silver iodide, collected on a tared filter, dried, and counted on a beta-gamma coincidence system or by low-background beta counter. The LLD is approximately 0.3 pC1/ liter.
6.4 Genna Spectrometry Ge(L1)
Gamma spectrum analysis utilizes germanium or Ge(L1) detectors with thin aluminum windows housed in steel and lead shields. The analyzer systems are Nuclear Data 4420 and 6685. Table 5-1 summarizes LLD values derived from instrument sensitivity based upon a blank sample background.
6-1
---,r- - , - , , - - , - - - - - -. ,,
i Air particulate composites are fitted into a Petri dish and analyzed
, directly.
Liquid samples, except milk, are boiled down to a small volume, transferred to a polyethylene beaker, and analyzed directly.
Bottom and shoreline sediments are dried, weighed, and then analyzed in a Marinelli beaker.
Food crops are weighed wet and analyzed in a Marinelli beaker.
Fish samples are cleaned and dressed similar to meal preparation.
These samples are then dried at 100*C and ground to produce a homogeneous mixture. These are placed in a polyethylene beaker and analyzed.
6.5 Thermoluminescent Dosimetry
\ Each area monitoring station includes a TLD packet, which is a
- polyethylene bag containing three calcium sulfate phosphors contained in a Panasonic UD-814 badge. The TLD is lighttight and the bag is weather-resistant.
Dosimeters are machine annealed before field placement. Following exposure in the field, each dosimeter is read utilizing a Panasonic -
TLD reader. This instrument integrates the light photons emitted l from traps deexcited above 150*C. The lower-energy traps are auto-matica11y eliminated through a preheat cycle. Calibration is checked regularly using dosimeters irradiated to known doses. Prior to the measurement of each dosimeter, the instrument is checked through use of an internal constant light source as a secondary i
standard. The minimum sensitivity of the dosimeters used is approx-
! 1mately 1 mR. '
l l
The exposure reported is corrected for exposure received in transit and storage through the use of control dosimeters.
[
6-2
\
L . , , _ _ _ _ _ . . - - - - - . . - - - - - - - - - - - - - - - - - - - - ~ - - - - " - ' - - - - - - ~ ' ' ' ' ^ ~ - ' ' ~^ ^ ^ ' ~ ~ '
6.6 EPA Laboratory Interconearison Program The Radiological Environmental Laboratory at the Harris Energy &
, Environmental Center in New Hill, North Carolina, provides radio-analytical services for CP&L's nuclear plant environmental survell-lance programs. The laboratory is a participant in the EPA cross-check program and uses its performance in this program as a major determinant of the accuracy and precision of its analytical results.
t During 1985, 22 samples representing 3 major environmental media (water, milk, and air filters) were analyzed. Data on the knomm activities and the 3 sigma control limits for all 22 of the samples have been received from the EPA. These 22 samples required triplicate de' terminations of the concentrations of 46 radionuclides.
A comparison of the average of our reported values with the EPA
- known activity and its standard deviation can be summarized as follows
i Standard Deviation (sigma)
From Known Activity Percent of Analyses
< 1 sigma 59
< 2 sigma 80
, < 3 signa 91 Of the 46 determinations, 4 (9 percent) fell outside the 3 sigma
- control limit.
The results which were beyond the control limits we.re randomly l distributed in time and among nucildes. No trend developed and no corrective actions were deemed necessary.
6.7 Lower Limits of Detection All samples analyzed met the LLO required by Technical Specification 1 6.9.1.7.h and Table 4.12.1-1. Typical LLO values for the samples l analyzed are listed in Table 6-1.
6-3
9' Table 6-1 Typical Lower Limits of Detection (LLD)
Ge(L1)GasmiaSpectrometry Air Particulates (Quarterly Composite)
Isotope (LLO)
Cs-134 0.0014 pC1/ cubic meter Cs-137 0.0020 Ba-140 0.088 La-140 0.022 Other Expected 0.0019 to Gamma Emitters 0.033 4
Surface Water Samples j Isotope (LLD)
Cr-51 51 pC1/11ter Mn-54 4.7 Co-58 5.7 Co-60 6.1 l Cs-134 5.4 Cs-137 5.1 La-140 24 Other Expected 0.20 to l Gamma Emitters 116 l l
l 6-4
, , _ . _ _ _ , _ _ , - , _ , r___,._-- , , _ - _ . . , _ _ _ _ - _ _ _ _ _ , _ _ _ . - _ , _ _ . , - . . . _ . . _ _ . - , _ _ _ _ - - , - . . . - - - - . - . . _ . _ _ _ _ _ . _ _ _ _ _
Table 6-1(Continued)
Groundwater Samples Isotope (LLO)
Cr-51 39 pCi/ liter Mn-54 3.9 Co-58 4.0 Co-60 4.4 Cs-134 4.1 Cs-137 3.7 La-140 9.2 Other Expected 0.25 to
- Gamma Emitters 116 Shoreline and Bottom Sediments Isotope (LLO)
Cr-51 550 pC1/kg
, Mn-54 18 Co-58 55 Co-60 30 Cs-134 80 Cs-137 65 Other Expected 150 to Gasma Emitters 4800 i
i i
6-5
- - . . - . - . _ . - _ - - ,.4 -
.-,,-,,_,n.,,-,n__. - , . - - . - - - - _ _ _ _ _ _ _ -
D Table 6-1(Continued)
Fish and Invertebrates 1
Isotope (LLO) l Cr-51 62 pC1/kg Mn-54 6.8 Co-58 7.7 '
Co-60 9.2 -
I-131 16 Cs-134 7.9 Cs-137 7.9 Other Expected 5.8 to Gamma Emitters 110 Food Products and Vegetation Isotope (LLO)
Cr-51 140 p C1/kg Mn-54 20 Co-58 19 Co-60 24 I-131 20 i Cs-134 l
21 Cs-137 21 Other Expected 16 to Gasma Emitters 1400 i
6-6
,.,.,n...,--,c-.., , ~ , , , ,- - - . , _ - . -.-.,-,-n ., . , , . - . . . . - - - . . . _ - -
e -
GP&L Carolina Power & Light Company Brunswick Steam Electric Plant P. O. Box 10429 Southport, NC 28461-0429 April 28, 1986 FILE: B09-13310C' SERIAL: BSEP/86-0581 Dr. J. Nelson Grace, Administrator U.S. Nuclear Regulatory Commission Suite 2900 101 Marietta Street NW Atlanta, GA 30323 BRUNSWICK STEAM ELECTRIC PLANT UNITS 1 AND 2 DOCKET NOS. 50-325 AND 50-324 LICENSE NOS. DPR-71 AND DPR-62 ANNUAL ENVIRONMENTAL RADIOLOGICAL MONITORING REPORT
Dear Dr. Grace:
Enclosed are two copies of the Annual Environmental Radiological Monitoring Report for Brunswick Steam Electric Plant covering the period from January 1 through December 31, 1985.
This report is submitted in accordance with Brunswick Technical Specifications I 6.9.1.6 and 6.9.1.7.
Very truly yours, O -y C. R. Dietz, General Manager Brunswick Steam Electric Plant RMP/jro Enclosures l
cc: NRC Document Control Desk e
-t L