RBG-42851, Radiological Environ Operating Rept,River Bend Station for Operating Period,Jan-Dec 1995
| ML20108B949 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 12/31/1995 |
| From: | Holmes J, Odell W, Reed M ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| RBFI-96-0167, RBFI-96-167, RBG-42851, NUDOCS 9605060108 | |
| Download: ML20108B949 (53) | |
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EntIrgy operations, Inc.
River Bend Station 5485 U S. Highway 61 t Francis e. LA 70775 j Tel 604 336 6225 l Fax 504 635 5068 James J. Fisicaro Director Nuclear Safety I
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! April 25,1996 l U.S. Nuclear Regulatory Commission
! Document Control Desk Mail Stop PI-37
- Washington, DC 20555-0001 l
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Subject:
Radiological Environmental Operating Report for 1995 ,
l River Bend Station - Unit I License No. NPF-47 Docket No. 50-458 t
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- l. File Nos.: G9.5, G10.6 l l l RBG-42851 RBFI-96-0167 Gentlemen:
Enclosed is the River Bend Station (RBS) Annual Radiological Environmental Operating Report for the period January 1,1995 through December 31,1995. This report is submitted in accordance with the RBS Technical Specifications, Section 5.6.2. Data used to develop this report is being maintained as permanent plant records and can be made available for review upon request.
Should you have any questions regarding the enclosed information, please contact Mr. David Lorfing of my staff at (504) 381-4157.
Sincerely, i
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9605060108 951231 PDR ADOCK 05000458 PDR hI )
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1 Radiological Envoronmental Operating Report for 1995
~ April 25,1996
' RBG-42851 !
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~ RBFI-96-0167
' Page 2 of 2 s
cc: U.S. Nuclear Regulatory Commission ,
Region IV.
611 Ryan Plaza Drive, Suite 400
. Arlington, TX 76011 NRC Resident Inspector PO Box 1051 ;
St. Francisville, LA 70775 i Mr. David L. Wigginton U.S. Nuclear Regulatonj Commission M/S OWFN 13-H-2 Washington, DC 20555 l
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LRADIOI.}OGICAlf ENVIRONMENTAL OPERATINGlREPORTs
- i. RIVER! BEND lSThTIDN)
FOR THE OPERATING PERIOD l January 1,1995- December 31,1995 Compiled by:
g McGehee Reed Specialist - Environmental, Sr.
Reviewed by:
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William H. Odell Jerome Hohles Superintendent - Radiation Control S perintendent - Chemistry Approved by:
Joel DN Genera l Manager - Plant Operatio i
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1 RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l Abstract l l
During 1995, radiological environmental monitoring and a land use census were conducted in the vicinity of River Bend Station (RBS). As part of the monitoring program, the RBS Radiological Environmental Monitoring Program (REMP) laboratory participated in an interlaboratory comparison program with 97.0 percent of analytical results within controllimits. The land use census revealed 4 salient changes in receptor locations since 1994. Twenty-three monitoring exceptions, involving Technical Specifications / Technical Requirements Manual (TRM) required samples, occurred out of a total effort of 1,274 samples collected and 1.382 subsequent analyses performed. None of the exceptions had significant impact on program quality.
Although well below the required detection limits, slightly elevated (rnelative to baseline data) levels of Cesium-137 were sporadically measured in both indicator and control media; these concentrations were l presumably attributable to the 1986 incident at Chernobyl, Russia. The only measurable increases in radionuclide activity, or levels of radiation above baseline levels in the vicinity of RBS during 1995, which are attributed to plant operation, are the expected low levels in the liquid discharge line. The levels of activity j measured in environmental media and in the liquid discharge were below the required levels of detection, and 1 therefore, substantially below Technical Specification /TRM reporting levels. The 1995 Radiological Environmental Monitoring Program thus substantiated the adequacy of source control and effluent monitoring at River Bend Station.
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 i TABLE OF CONTENTS Page !
1.0 INTRODUCTION
.. . . . . . . . . . . . . . .......1 2.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM. . . .. .1 ;
1 2.1 Purpose / Bases . . . . . .. . .. . . . . .1 l 2.2 Environmental Radiation Exposure Pathways... .. . . . .4 2.3 Land Use Census for 1995. .. .. .. . .5 2.4 Interlaboratory Comparison Program Results for 1995.. . . . . . .5 2.5 Program Exceptions .. .. . .. .. .. . . . ...5 3.0 INTERPRETATION OF REMP RESULTS. . .. .. . . . . .16 l 1
3.1 Summary of Operational REMP Results.. . . . . . . . . . . . . . . . . 16 3.2 Comparison of Operational and Baseline REMP Results.. . . . . 21 3.3 Comparison of REMP Results with Operational Controls. . . . . . . . .22 APPENDICES A. Listings of 1995 REMP Results B. Summary of Preoperational REMP (Baseline) Results l
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995
! LIST OF FIGURES Page
! Figure 1. Far-field Radiological Environmental Monitoring Locations... .. . . . .. . 2 Figure 2. Near-field Radiological Environmental Monitoring Locations. . . . . . . 3 l
l LIST OF TABLES Page l
l Table 1. Radiological Environmental Monitoring Program .. .. . . .. . ... .. ... .. .6 j Table 2. Results of Land Use Census. . ... .. .... . . . . . . . . . . . . . . . . . . . . . . 13
. Table 3. USEPA Interlaboratory (Cross-check) Program Participation Results for 1995... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .............14 Table 4. Monitoring Program Exceptions in 1995.. . . . . . . . . . . .. . . . . . . .. 1 5 l
i Table 5. Radiological Environmental Monitoring Program Summary... . . ........ . 17 1
! Table 6. Summary Comparison of Liquid Effluent Quantities / Concentrations l and REMP Discharge Line Monitoring Results. .. .. ..... . . . . . . . . . .23 l
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 i
1.0 INTRODUCTION
This Annual Radiological Environmental Operating Report for the period of January 1 through December 31,1995, is submitted in accordance with Technical Requirements Manual (TR 5.6.2) as required by Technical Specification (5.6.2) of Appendix A to River Bend Station License Number NPF-47.
River Bend Station (RBS) is a 936 MWe General Electric boiling water reactor located in West Feliciana Parish, Louisiana,4.1 km southeast of St. Francisville (Figure 1). Waste heat from RBS is dissipated via a system using five mechanical draft cooling towers which draw makeup water from the Mississippi River, 3.3 (air) km to the west. Blowdown from the cooling tow:r system dilutes low-level liquid radioactive waste and is discharged to the Mississippi River through a 4.4-km buried pipe l located downstream of the intake structure (Fig. 2). Gaseous radioactive effluents are released through the main plant exhaust duct, the fuel building exhaust duct, and the radwaste building exhaust duct.
The area within a 16-km radius of RBS includes substantial portions of West Feliciana, East Feliciana, and Pointe Coupee parishes, as well as small portions of East and West Baton Rouge parishes. Most of the land in this acea is devoted, in about equal proportions, to forests and agriculture (pasture, various crops). Wetlands, streams / lakes, and urban / improved lands comprise the remainder of the immediate vicinity of the plant. Besides St. Francisville, (4.1 km northwest), human population centers near RBS are New Roads (10 km southwest) and Jackson (12 km northeast). Industrial facilities in the immediate vicinity of RBS are Crown Vantage Paper Plant (5 km south); Big Cajun No. 2 Power Station (5 km southwest); and the Corps of Engineers concrete casting yard (5 km west).
Th3 area within an 80-km radius of RBS contains all or portions of 19 Louisiana parishes and five Mississippi counties. This area has generally the same makeup as that of the immediate vicinity of RBS, although wetlands, agricultural lands, and ur".;an/ improved lands are relatively more extensive (at the expense of forested lands) in the southwestern and southeastern quadrants. Baton Rouge, centered at about 38 km southeast, is the only large city in the general vicinity of RBS.
During 1995, radiological environmental monitoring in the vicinity of RBS was performed by the River Bend Station Environmental Services Group, a part of the plant Chemistry Department, with support from the plant Radiation Control Department in maintaining / calibrating air samplers and in reading / annealing thermoluminescence dosimeters, i
2.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP) 2.1 Puroose/ Bases The Radiological Environmental Monitoring Program (REMP) was established to provide representative measurements of radiation and of radioactive materials, resulting from RBS operation, in those exposure pathways and for thor 3 radionuclides that lead to the highest potential exposures of members of the public.
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 1
The REMP implementsSection IV.B.2 of Appendix I of 10CFR50 and thereby supplements the radioactive effluent monitoring program by verifying that the measurable concentrations of radioactive materials and levels of radiation are not higher than expected on the basis of the effluent measurements and the modeling of the environmental exposure pathways.
The REMP applies the concepts of indicator vs. control and preoperational vs. operational intercomparisons to verify the adequacy of source controls and resultant human radiation doses. In addition to 10CFR50, Appendix 1, the program is based on guidance provided in the Nuclear Regulatory Commission's Radio!ogical Branch Technical Position. Revision 1, November 1979, as well as NRC Regulatory Guides 4.1 and 4.15.
2.2 Environmental Radiation Exoosure Pathways Elements of the REMP monitor indications of the impacts of gaseous (airborne) and liquid effluents released from River Bend Station. The specific methods used in monitoring the pathways by which these effluents could lead to human exposure, based on existing demographic information, are:
HUMAN EXPOSURE PATHWAYS (A) Airborne Pathway Monitoring Media inhalation Dose (internal) Air Samples (Particulates and Radioiodines)
Ground Plane Dose (external) Thermoluminescence Dosimetry (TLD)
Immersion Dose (external) Thermoluminescence Dosimetry (TLD)
Ingestion Dose (internal) Vegetation / Food Crop Samples (B) Direct Exoosure Pathway Monitoring Media External Dose Thermoluminescence Dosimetry (TLD)
(C) Waterborne Pathway Monitoring Media ingestion Dose (internal) Surface Water Samples Groundwater Samples Drinking Water Samples I Fish / Invertebrate Samples Shoreline Sediment Samples immersion Dose (external) Surface Water Samples Shoreline Sediment Samples Site-related dispersion characteristics, demography, hydrology, land use, anticipated source terms, and the exposure pathways outlined above were considered in the selection of the sample media, sampling and analysis frequencies, sam-pling/ measurement locations, and types of analyses. These criteria were used to establish both the preoperational and operational phases of the REMP.
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i RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 The program that evolved during the preoperational(baseline) monitoring phase incorporates all of the elements in the RBS Technical Specifications (3/4.12.1, 3/4.12.2, 3/4.12.3) plus special study criteria, and is illustrated in Table 1 and Figures 1 and 1
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1 2.3 Land Use Census for 1995 The annual land use census, which implementsSection IV.B.3 of Appendix i of 10CFR50, was conducted during the 1995 growing season in accordance with RBS Technical Specification 3/4.12.2 and/or Technical Requirements Manual (TR 3.12.2).
Table 2 summarizes the results and notes changes in nearest receptor locations within 8 km from those identified in the Radiological Environmental Operating Report for 1994.
The 1995 census identified residences within 8 km of the RBS reactor containment in all sectors except L (SW) and M (WSW). The nearest resident in sector O (NNW) was 1.4 km, compared to 1.3 km in 1994. The gardens identified in sectors P (WNW) and O (NW) are the onsite gardens established near sectors with the highest calculated annual average ground I vel D/Q. These gardens are REMP indicator locations for broadleaf vegetation (Table 1, Fig. 2). No receptor garden was found in sector E (E) compared to a garden at 2.2 km in the 1994 census. A farther resident was located in sector F (ESE) at 3.5 km, compared to 3.4 km in the 1994 census. No gardens were located in sectors L (SW), M (WSW), and N (W) during i the 1995 census.
I No dairy animals were found within 8 km of RBS during the 1995 census. Historically, there have never been enough dairy sites to accommodate the minimum RBS Technical Specification requirements for analysis of milk, so monitoring of broadleaf vegetation has been performed from the outset.
River Bend began a survey of meat animals within the 8 km radius of RBS during the 1990 census. This initial survey identified beef herds in all sectors except L (SW). During the 1991 census, meat animals were located in sector L (SW) at 4.6 km. There were no meat animals found in sector R (NNW) during the 1995 census, compared to animals at 3.0 km in the 1994 census. The meat animal survey will be discontinued in 1996, due to program reductions of non-required activities.
2.4 Interlaboratorv Comoarison Program Results for 1995 The RBS REMP Laboratory participated in the U S. Environmental Protection Agency (USEPA) Performance Evaluation Study Program during 1995 in accordance with RBS Technical Specification 3/4.12.3 and/or Technical Requirements Manual (TR 3.12.3). RBS results (Table 3) were within the control limits for the normalized range (precision) for all analyses, and within the USEPA "known" value (accuracy) for all but one analysis. The discrepancy for this analysis is discussed below.
The USEPA discontinued the cross-check media for " food"in 1989, and although milk sampling and analysis is not required of RBS at this time, the results for the cross-check media for " milk" are included as a gauge for the " food" sample analyses (i.e.,
vegetation and fish) performed by RBS.
2.5 Program Exceptions Certain samples and analyses were inadvertently omitted or unavoidably altered during the 1995 operating period, out of a total effort of 1,274 samples collected and 1,382 subsequent analyses performed. These exceptions and the reasons for the omissions / alterations are delineated in Table 4 in accordance with Technical Specification requirements. Corrective actions and impacts on program quality are discussed starting on page 12.
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (Page 1 of 6)
Exposure Pathway Sample Point Description, Sampling and Type and Frequency of and/or Sample Distance, and Direction Collection Frequency Analysis Airborne Particulates and Radioiodines Samples from 9 Locations:
INDICATOR STATIONS AA1. River Bend Training Center; 1.7 km N Continuous air sampler with filter Charcoal cartridge:
cotiection weekly or as required by analysis weekly for AR1. River Bend Station North Access Road dust loading, whichever is more radioiodine.
across from plant entrance; O 8 km NNW frequent.
AP1. Near River Bend Station Onsite Garden #1; Particulate filter:
0.9 km WNW analysis weekly for gross beta AQS2. St Francis Substation on U.S. Hwy (Bus )
61 in St. Francisville; 5.8 km NW (nearest Composite particutate filters:
community location). analysis quarterly for gamma isotopic activity.
CONTROL AND SPECIAL INTEREST STATIONS' ALC. Parlange Power Center in Oscar; 20 km SW (Control).
AB1. River Bend Station coohng tower yard. 0 5 km NNE.2 AKS. River Bend Station River Access Road, 2.8 km SSW 2 AGS. GSU Service Center compound in Zachary; 17 km SE.8 AHS. Roof of GSU Office Building, North Blvd ,
Baton Rouge, 40 km SSE.2 Direct Radiation Measurements from 44 locations' INDICATOR STATIONS TA1. River Bend Training Center; 1.7 km N Thermolumnescence dosimeters Gamma exposure (TLDs); deployment / retneval quarterly?
quarterty.
TA2. WF-17 siren pole south of La. Hwy.10 and West Feliciana Pansh Road (WF) 2 in Elm Park; 8 km N.
TB1. River Bend Station cooling tower yard. 0 5 km NNE.
TB2. Stub pole at Jct. of La. Hwy. 965 and Audubon Lane (WF 17); 5 km NNE.
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i RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RADIGLOGICAL ENVIRONMENTAL MONITORING PROGRAM (Page 2 of 6)
Exposure Pathway Sample Point Description, Sampling and Type and Frequency of and/or Sample Distance, and Direction Collection Frequency Analysis l ,
Direct Radiation TC1. Stub pole at Jct. of US Hwy 61 and Old Thermoluminescence dosimeters Gamma exposure (continued) Highway 61; 1.7 km NE. (TLDs); deployment / retneval quarterly.8 quarterly.
l l TC2 Stub pole along La Hwy 966,0 6 km south l of Jct. of La Hwys. 966 and 965; 7 km NE.
TD1 Stub pole along WF 7,150 meters south of Jct. of WF 7 and U S Hwy. 61; 1.6 km ENE.
l TD2. Stub pole along La. Hwy. 966,4 km south of Jct. of La. Hwys. %6 and 965; 6 3 km ENE.
TE1. Stub pole along WF 7,1 km south of Jct of WF 7 and U.S. Hwy. 61,1.3 km E.
TE2 Gravel Power Center on La Hwy,68. 2 km norts of Jct of La Hwys 68 and 964,10 km E.
TF1. Stub pole along WF 7,16 km south of Jct.
of WF 7 and U S Hwy. 61; 1.3 km ESE.
TF2. On La Hwy. 954. 0 6 km north of Jct. of La l 954 and U.S. Hwy. 61; 6 km ESE. ,
1 l TG1. Stub pole along WF 7,2 km south of Jct. of WF 7 and U.S. Hwy 61,16 km SE. ]
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TG2. Telephone pole at gate to Marathon Tank Farm on U.S. Hwy. 61, near Delombre; 7.5 km SE. '
TH1. Stub pole at Illinois Central Gulf Railroad crossing of WF 7 (near Grants Bayou): 1.7 km SSE. '
TH2. First telephone pote on La Hwy 964 north of the entrance to Crown Vantage Paper Plant. 5.5 .
km SSE.
1 TJ1. Stub pole near River Bend Station gate #23 on La Hwy. 965; 1.5 km S TJ2. Large tree along Rive Road,100 meters I north of Crown Vantage f aper Plant intake j structure; 5 8 km S. j TK1. GSU utility pole #L10178 on La Hwy. 965.
20 meters south of RBS River Access Road. 0 9 km SSW. 1 1
TK2 Stub pole at Jct. of La. Hwys 414 and 415, 8 km SSW.
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (Page 3 of 6)
Exposure Pathway Sample Point Descript%n, Sampling and Type and Frequency of and/or Sample Distance, and Direction Collection Frequency Analysis Direct Radiation TL1. Second utility pole on La. Hwy. 965 south of Thermoluminescence dosimeters Gamma exposure (continued) former I;linois Central Gulf Railroad crossing. 1.0 (TLDs); deployment / retneval quarterly.'
km SW. quarterly.*
TL2. Second utility pole along La Hwy 415 east of Louisiana & Arkansas Railroad crossing (near Patin's Dike); 9.5 km SW.
TM1. First utility pole on La Hwy. 965 north of former Illinois Central Gulf Railroad crossing. 0 9 km WSW.
TM2. Utility pole along La. Hwy. 981, about 3 km south of Jct. of La. Hwys. 981 and 10; 4.2 km WSW.
TN1. Utility pole along La Hwy. 965, between RBS gates #13 and #14; O 9 km W.
TN2. Utility pole with electncal meter near west bank ferry landing (La. Hwy.10), 6 km W.
TP1. Near RBS Onsite Garden #1; 0.9 km WNW.
TP2. Stub pole about 1.5 km north of former ICG RR trestle on Tunica Street, western outskirts of St. Francisville; 7.3 km WNW TQ1. GSU property sign along La. Hwy 965 about 1 km north of RBS North Access Road,1.4 km NW.
TQ2. GSU pole at Jct of North Commerce and American Beauty Streets, St Francisville; 6.9 km NW TR1, RBS North Access Road across from plant entrance; O 8 km NNW.
TR2. Tree along north side of WF 2, past Jacock Road, about 1.8 km east of Jet of WF 2 and U S.
Hwy. 61; 8 km NNW.
CONTROL AND SPECIAL INTEREST STATIONS' TAC. Telephone pole along U S. Hwy. 61 about 200 meters north of Hamilton Station Water Tower, near Wakefield; 18 km N 8
l RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RAQlOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (Page 4 of 6)
Exposure Pathway Sample Point Description, Sampling and Type and Frequency of and/or Sample Distance, and Direction Collection Frequency Analysis CONTROL AND SPECIAL INTEREST STATIONS' Direct Radiation TEC. Stub pole at Jct of La. Hwy. 955 and Thermoluminescence dosimeters Gamma exposure (continued) Midway Road. 4.8 km north of Jct. of La. Hwys. (TLDs); deployment /retneval quarterly.8 955 and 964,16 km E.2 quarterly.8 TLC. Parlange Power Center in Oscar: 20 km SW.
TCS. Utikty pole at gate to East Louisiana State Hospitalin Jackson; 12.3 km NE.
TGS. GSU Service Center compound in Zachary; 17 km SE.
THS. Roof of GSU Office Building. North Boulevard, Baton Rouge, 40 km SSE.
TKS. RBS River Access Road. 2.8 km SSW.8 TLS Utikty pole near False River Academy sign at edge of New Roads.- E : <m SW.
TQS1. Behind Pentecostal Church (opposite West Feliciana Hospital) near Jct of U S. Hwy. 61 and Ferdinand Street; 4 km NW, TQS2. St. Francis Substation on U S. Hwy.
(Business) 61 in St. Francisville; 5.8 km NW.
TQS3 Utility pole at Louisiana State Penitentiary dairy, near Angola; 35 km NW.
TRS, Stub pole at Jct of WF 2 and US Hwy 61, near Bains (West Feliciana High School); 9 2 km NNW.2 Waterbome SURFACE WATER
- SWU. Mississippi River about 4 kin upstream Weekly grabs. composited over Monthly composite:
from the RBS hquid discharge, near La. Hwy.10 monthly and Quarterly penods gamma isotopic, tntium8 ferry crossing 5 and gross beta ana!ysis .
Quarterly composite: tritium analysis.
SWD Mississippi River about 4 km downstream from the RBS hquid discharge, near the Crown Vantage Paper Plant.
DL. RBS hquid discharge hne at the blowdown Flow-weighted hourly grabs, co:f.rol structure along the River Access Road composited monthly and quarterty, f
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (Page 5 of 6)
Exposure Pathway Sample Point Description, Sampling and and/or Sample Distance, and Direction Type and Frequency of Collection Frequency Analysis sua Waterbome DRINKING WATER
- Nearest downstream water supply: Weekly grabs. composited over Monthly compo gamma lH-10 bndge in Baton Rouge. 53 9 km downstream monthly and quarterly penods. isotopic, intrug)pite: and gross from the RBS liquid discharge. or People's Water beta analysis .
Service Company in Donaldsonville. 138 km Quarterty composite: tritium downstream from the RBS liquid discharge. analysis GROUNDWATER WD. Upland Terrace Aquifer well, downgradient Quarterly grab. Gross beta, gamma from the plant, about 470 meters SW. isotopic, and tntiurp analyses quarterty'.
WU. Upland Terrace Aquifer well, upgradient from the plant, about 470 meters NNE (control).
SHORELINE SEDIMENT SEDD East shore of the Mississippi River, about 4 Semiannual grab Gamma isotopic analysis km downstream from the plant, near the Crown semiannually.
Vantage Corporation paper mill.
SEDU. East shore of the Mississippi River, about 4 km u ferry.pstream from the plant. near the La Hwy 10 Ingestien FISH AND INVERTEBRATES FD One sample of each of three commercially Semiannually or seasonally, when Gamma isotopic analysis on and/or recreationally importaol species frorin the available. edible portions semiannually downstreapt area influenced by the RBS liquid or seasonally.
discharge FU. One sample of each of three commercially and/or recreationally important species from the upstream area not discharge (control), influenced by the RBS liquid PRODUCE
- G1/G2 Two samples of each of three different Monthly dunng the growing season. Gamma isotopic and 1-131 types of leafy vegetables from onsite gardem near analyses monthly.
the site boundary in areas of highest calculated er g ground-level D/O, 1 km WNW and 1.1 GQC. One sample of each of thrve different kinds of leafy vegetables frcm the Lou stana State Penitentiary at Angola, 35 km NW(control).
10
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (Page 6 of 6) i NOTES:
l (1) For purposes of data summary, comparisons, and discussion, the sampling locations designated as "Special Interest" are treated as indicator stations if they are within 16 km of RBS and control str.tions if they are beyond 16 km.
l (2) Sample / measurement location not required by RBS Technical Specifications (not identified in ODCM).
(3) Sampling and/or analysis frequency greater than required by RBS Technical Specifications and ODCM.
(4) The upstream (control) sample is taken at a distance beyond influence of the plant discharge. The
! downstream (indicator) sample is taken in an area beyond but near the mixing zone. ;
i (5) Gross beta analysis not required by RBS Technical Specifications and ODCM.
(6) Dnnking water sampling / analyses not required by RBS Technical Specifications and ODCM. (No drinking water pathway exists due to extreme distance to nearest intake). The upstream surface water sampling location (SWU) is used as a " control" for drinking water analyses comparisons.
(7) Preferred species are river shrimp (Macrobracium ohione), blue catfish (letalurus furcatus), and freshwater drum (Aolodinotus crunniens); if r ,e are unavailable, other edible species may be substituted.
(8) No irrigation pathway exists due to the extreme distance of nearect domestic water intake (see Note 6);
leafy vegetables are sampled and analyzed because of limited availability of milk samples.
4 11
RlVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Air Particulates and Radiciodings Twenty-three program exceptions, with loss of sample / sample volume, occurred involving air particulate and radioiodine sampling. Fifteen of these involved non-technical soecification/reauirement locations. All were caused by power outages due to weather, or equipment / electrical malfunctions on the feeder line. The program exceptions, involving technical specification locations, were a result of equipment problems / failures, and power outages of unknown reasons, which may have been weather related. In spite of the numerous power failures, samples were collected and analyzed from all locations with adequate volumes to achieve all required detection limits, except for locations AB1 (7/18 - 8/8, 9/19 - 10/24); AKS (3/22 - 3/27, 7/18 - 8/8); and AHS (3/ 7 - 3/15). All preceding air sample locations are not required by RBS Technical Specifications /TRM.
These three locations will be discontinued in 1996, due to program reductions of non-technical specification / requirement activities.
RBS is currently using methods for determining more precisely when, during the week-long sample period, power outages or equipment failures occur so that comparison with wind direction joint frequencies will document the extent to which required ,
sampling was achieved. Plotters are used at sampling locations to plot actual hours of power outages as they occur. l Air sample location AP1 (WNW,0.9km) was reported to have a higher-than-normal gross beta activity for the week of 5/16/95 l to 5/23/95. Even though this activity was less than ten times the yearly control sample mean for the previous year (as required by the TRM); it was analyzed by gamma isotopic, and peaks of Co-60 and Mn-54 were quantified. The second j quarter AP1 filter composite gamma analysis quantified Mn-54 at 0.005 pCi/m^3, and Co-60 at 0.013 pCi/m^3. The third l quarter AP1 filter composite analysis quantified Co-60 at 0.018 pCi/m^3. Fourth quarter AP1 filter composite quantified only '
I natural nuclides. Individual AP1 weekly filters analyzed from 10/24/95 revealed only background radiation.
Direct Radiation tTLD)
Data for the first quarter at locations TK2 and TN1; second quarter at location TN2; and fourth quarter at locations TJ2, TL2, and TP2 was lost due to vandalism. The loss of TLD badges is a common occurrence when deploying TLD's in 44 locations I over five parishes.
Water Samole Discharge line weekly composite samples for the month of May were not flow-weighted the entire month due to problems experienced with the flow meter on the discharge line. The composite sampler was used in the time mode instead of flow mode for part of the monthly collection. Discharge line samples analyzed during the months of May and June failed to achieve the detection limit for lodine-131 due to a software problem that failed to count the sample to the pre-set MDA level as programmed. This problem has been addressed by a revision to the software that should correct the recurring problem. The two discharge line samples with detection limits and actual achieved MDA's are shown below.
Water Sample 1-131 Location (15 pCill LLD)
DL (5/95) 16.3 DL (6/95) 15.9 12
l RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 2 1 RESULTS OF LAND USE CENSUS l
Sector Nearest Range Nearest Range Nearest Range Nearest Range Residence (km) Garden (km) Dairy (km) Meat Animal (km)
A (N) Jones 1.8 Jones 1.8 - -
Daniel, H. 3.0 B (NNE) Dreher 1.6 Harvey 1.8 - -
Harvey 1.8 C (NE) Magee 1.5 Magee 1.5 - - Daniel, H. 1.7 D (ENE) Daniel, E. 1.6 Daniel, E. 1.6 - -
Daniel, E. 1.2 3
E (E) Bickham, S 2.2 - - Daniel, E. 1.2 F (ESE) Bickham,L 3.4 Eisworth 3.6 - - Daniel, E. 1.2 G (SE) Mills 6.6 Mills 6.6 - -
Bickham 3.5 4 (SSE) Koffman 1.7 Koffman 1.7 - - Daniel, E. 3.9 J (G) Bliss 1.8 Bliss 1.8 - - Daniel, E. 3.5 K (SSN; Guillory 7.4 Guillory 7.4 - - Daniel, E. 3.5 l
L (SW) - - - - - -
Bergeron 4.6 M (WSW) - - - - - -
Langois 5.0 N(W) Lacost 6.1 - - - -
Langols 5.0 P (WNW) Hermann 3.4 Site #1 0.96 - -
Hardovin 7.4 Q (NW) ' Leet 1.4 Site #2 1.07 - -
Cole 1.3 R (NNW) Young 1.7 Cummings 3.7 - -
NOTES:
(1) Further resident at 1.4 km compared to 1.3 km in the 1994 census.
(2) Further resident at 3.5 km compared to 3.4 km in the 1994 census.
.(3) No garden compared to a garden at 2.2 km in the 1994 census.
(4) No meat animal compared to meat animals at 3.0 km in the 1994 census.
13
l RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 3 USEPA INTERCOMPARISON (CROSS-CHECK) PROGRAM PARTICIPATION RESULTS Sample T pe Date i Analysis i USEPA I RBS i RBS RBS Averano (unitsf l l "Known" Value' l Value i N-DEV"i l N RANGE' Resuit" gFg 08/25/95 Beta 86 6 i 17.3 98.0 +2.00 0.473 87.4 i 8 81 Alpha ; 2501109 30 0 +1.40 i 0375 26.71398 Mdk' Cs-137 25 0 i 8.7
)j 100 0 22.0 -1.00
) 0.354 f 26.8 i 3 88 09/29/95 l-131 99.0 17.3 4.
+0.20 0 413 )1.2 i 7.25 5
i Cs-137 50.018.7 { 50.3 +0.10 0.118 51.012.87 l K (nat) 1654.0 143 8 r 1746.0 +1.90 O.171 ' 1665.5 i 119 4 I
gtg 01/27/95 Beta 5016.9 80 + 1.04 0 236 66211.93
- -- t t t t 02/03/95 l-131 ! 100.0 t 17.3 i 95.0 - 0 87 l 0.177 l 985315.59 ,
g 03 /10/95 ,, ,H-3 f 7435.0 1290.5
[ 6649 3 I -1 83 f 0.074 j _ 7299 21682.97 04/18/95 Beta ! 86 6 t 17.3 41.0' l -7.90' 0473 86 93 10.42 s... a.
Co-60 29018.7 28.7 -0.12 0.118 29.39 i 2.24 Cs-134 20 0 i 8.7 17.3 -0.92 O.354 18.33 1 2.38
. - . . . ., Cs-137 ..
11.0 8.7 11.3 0.12 0.118 11.78 1 1.68 06/09/95' Co-60 l 40.0187 l 38.3 -058 ; O118 39.712.52 2n-65 7601139 75.7 -006 O 369 78 8 i 5.52 Ba-133 790113.9 76.0 -0.65 0.148 76 2 5.46 Cs-134 ! 50.018.7 42.7 -2.53 0.709 i 45 6 3 99
.. , 4-Cs-137 35 0 1 0.7 35.3 0.10 i 0.118 l 35.512.90 07/21/95 Beta l 19 4 i 8.7 14 0
-1.87 f
~
0354 } 21.67 1 3.88 08/04/95
. H-3. . . ...k...
4872.0 1 844 9 i' 4540.0
. . , . ~ .
-1.18 0243 " 4788.09 i 844.9 1480126
! 10/06/95 l-131 154 3 0.70 0.276 152.9 10 71 5 .
10/17/95 Beta 123 5 32.0 107.0 f -1.54 [ 0.958 124.0 i WL 6 Co-60 f 49.0 8.7 49.0 ! 0.00 0.591 49.3 i 2.75 Cs-134 [, 400187 34.7 -1.80 0.473 36.7 i 3 06 )
Cs-137 30.018.7
[ 29.0 -0.30 j 0.591 30.9 2.52 10/27/95 Beta 24.8 8.7 20.7 -1 40
[ 0.673 j 27,1 i 4 43 11/03/95 Co-60 60 0 8.7 60.7 i 0 23 0.118 ! 59.7 i 4 05
' ' l Zn-65 1250122.5 134.3 f 1.20 O.409 128.9 8.98 i Ba-133 990117.3 i 102.7 I* O 60 0.295 95.6 i 6 59 1
Cs-134 40.0 i 8 7 j 36.7 l -1.20 j 0236 i 36.9 3 03 Cs-137 f 49.0 8.7 i 52.7 f 1.30 ) 0.236 50 8 3.13 NOTES.
(a) USEPA "known" values are bsted with a range reflecting control (3 sigma) hmits (b) The normalized deviation from the "known" value is computed by USEPA from the deviation and the standard error of the mean.12 000 is the waming hmit and 13 000 is the control hmst (c) The normah2ed range is computed by USEPA from the mean range. the control hmit. and the standarri error of *,e range; +2 000 is the warning hmit and +3 000 is the control hmit.
(d) The grand average of all partsCipants' results (excluded outhers) rs hated with the expenmental (calculated) sigma for all laboratones (e) USEPA discontinued the cross. check media " Ped" in 1989 Although milk samphng and analysis by RBS is not performed, the cross-check samples of msik were analyzed, and the data included as a g&uge of the " food" sample (i e , vegetation, fish) analyses performed by RBS The Units for the nuchdes 1-131 and Cs-137 are pCilhter, and for natural potassium is mg/l.
(f) The results reported to USEPA were out of the control hmits. refer to the discussion on program exceptions (g) Sample analyzed but not reported to EPA in time for pubhcation Statistical calculations performed in house and included in records 14
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 4 MONITORING PROGRAM EXCEPTIONS SAMPLE TYPE PERIOD LOCATION EXCEPTION / REASON
^
12/27-01/03 AA1,AB1*.AR1.AKS*,AP1 1% weekly volume lost due to power outage of unknown reason Rd 01/3-01/10 AB1' 57% weekly volume lost due to weather related power outage 01/10-01/16 ABI' 28% weekly volume lost due to power outage from previous week 01/10-01/16 AHS* 8% weekly volume lost due to power outage from building remodeling 01/24-01/31 AR1 62% weekly volume lost due to fuse failure on transformer feeder pole 01/31-02/07 AR1 17% weekly volume lost due to power outage from previous week 02/07-02/14 AR1 44% weekly volume lost due to GFI breaker trip at sampler location 02/14-02/21 AHS* 6% weekly volume lost due to power outage from building remodeling 03/07-03/15 AHS* 100% weekly volume lost due to power outage from building remodeling 03/15-03/22 AKS* 32% weekly volume lost due GFl breaker trip 03/22-03/27 AKS* 100% weekly volume lost due to GFl breaker inp 03/27-04/04 AKS* 48% weekly volume lost due to GFl breaker; sampler replaced at location 05/09-05/16 AA1, AR1, API 2% weekly volume lost due to power outage of unknown reason AKS*, AB1* 3% weekly volume lost due to power outage of unknown reason 06/27-07/05 AR1 41% weekly volume lost due to power outage from inclement weather 07/11-07/18 AB1*, AKS* B2% weekly volume lost due to no power from fr.eder pole 07/18-08/8 AB1*, AKS* 100% weekly volume lost due to no power from feeder pole 08/08-08/15 AB1' 41% weekly volume lost due to power problem from previous weeks 07/11-07/18 AB1*, AKS* LLD for I-131 not achieved due to small volume caused by power outage 09/12-09/19 AB1' 54% weekly volume lost due to no power from feed pole 09/19-10/24 AB1
- 100% weekly sample lost due to no power from feed pole 10/17-10/24 ALC 3% week!y volume lost due power outage of unknown cause 10/31 11/07 AA1, AB1*, AR1, AKS*, 5%-12% weekly volume lost due to general power outage of unknown cause AOS2 12/12-12/19 ALC 4% weekly volume lost due to power outage of unknown cause 12/19-12/27 AGS* 59% weekly volume lost due to air pump failure TLD1 1st Quarter TK2,TN1 Data lost due to badges missing / stolen 2nd Quarter TN2 Data lost due to badge missing / stolen 4th Quarter TJ2,TL2,TP2 Data lost due to badges missing / stolen Water V5/95 DL All samples collected not flow-weighted due to flow meter inoperability 05/95 DL LLD for 1-131 not achieved due to gamma software problems 06/95 DL LLD for 1131 not achieved due to gamma software problems Vegetation 10/12 GOC LLD for 1-131 not achieved due to gamma software problems 12/95 G1,G2 Sample collections decreased due to inclement weather / freeze Cross Checks 04/18 Gross Beta in water study Results out of controllimits of study caused by preparation process
- Sample / measurement is not required by RBS Technical Specifications /TRM (not identified in ODCM) 15
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Vegetation Samoles A control vegetation sample collected during the month of October was analyzed and failed to ach; eve the detection limit for lodine-131. The LLD for 1-131 is 60.0 pCi/kg; while the actual MDA achieved was 89.3 pCi/kg. This is thought to be caused by the same software problem that was expenenced with the discharge line samples. The revision to the gamma software should correct this problem. Due to the inclement weather experienced during December, the vegetation sample collections were inadequate in the site indicator gardens during December.
USEPA Cross-check l The RBS results of the EPA Performance Evaluation Study for gross beta-in-water of 4/19/95 were outside the control limits of the study. RBS reported resu'ts averaging 41.0 pCi/l, while the control iimits were 69.3 to 103.9 pCi/l, with a known value of r 86.6 pCi/l. Instrument quality control data and worksheet calculations were reviewed with no indication of a problem. Four
! other beta-in-water studies were prepared and analyzed during 1995 with all results within the control limits for the respective
, studies. The reason for the low results is thought to be caused from the loss of sample during the later stages of sample preparation.
3.0 INTERPRETATION OF REMP RESULTS 3.1 Summarv of Ooerational REMP Results I
Monitoring results for the exposure pathways are itemized in Appendix A and summarized in Table 5, from which measured activities of the naturally-occurring daughters of uranium and thorium are excluded. For purposes of data summary, comparison, and discussion, the sampling locations designated "Special Interest" in Table 1 are treated as indicator stations if j they are within 16 km of RBS and control stations if they are beyond 16 km.
- 31.1 Airborne Exoosure Pathway - Measurements of radioiodine and other gamma-emitters were all below their respective LLDs - that is, " undetectable" at the required analytical sensitivities. Noble gases (Kr-87, Xe-133, Xe-135) were detected in air samples throughout the year. Gross beta activities averaged 0.021 pCi/m at incicator locations and 0.022 pCi/m' at control locations.
3.1.2 Direct Exoosure Pathway - Quarterly exposures averaged 12.7 mR total at indicator locations and 13.1 mR total 1 at controllocations.
31.3 Waterborne Exoosure Pathway No gamma-emitters were measured in surface water or in drinking water at levels approaching the Technical Specification LLDs. The gamma emitters Mn-54, Co-58, Fe-59, Co-60, Cr-51, La-140, Nb-i 95, Cs-137, and I-131 were measured in monthly composite samples from the CWS discharge line at concentrations between
! 1.53 and 276 pCi/l. Gross beta activities in surface water averaged 42.5 pCi/l in the discharge line and from 2.42 to 3.07 pCi/l
. at all other locations. Tntium (H-3) activities in surface water averaged 3873 pCi/l in the discharge line and were below a
detection limits at all other locations. Gross beta activities averaged 1.80 pCi/l in the downgradient WD (indicator), and 3.90
- pCill in upgradient WU (control) groundwater. Only naturally-occurring gamma-emitter, K-40, was measured in Mississippi River shoreline up-stream and down-stream sediments.
j 3.1.4 Ingestion Exoosure Pathway - Specific activities for radioiodine were below the required LLD in the ingestion pathway monitoring media during 1995. Only naturally-occurring gamma-emitters was measured in fish. Cs-137 was measured twice in control vegetation samples, and once in an indicator sample; but these levels were well below LLD levels.
l I
16 i
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
i (Page 1 of 4) l River Bend Station Docket Number: 50-458 West Feliciana Parish, Louisiana Reporting Period 1/1/95 to 12/31/95 4
Medium or Type and Total Lower All Indicator Location with Highest Pathway Number of Control Number of Limit of Statipna Mean Annual Mean Nonroutine Sampled (Unit of Analyses Detection, (f) Range Locationy .
Mean (f) Reported Measure) Performed (LLD) Range Results Name Mean (f)'
Distance / Direction Range Gross Beta 0 01 0 021 (306/306) API O 023 Air(pCi/m Particq) late (464) 0 005-0 059 0 9 Km WNW 0.022(158/158) 0 (53/53) 0 004 - 0 053 0 005-i 0059 K 40' None 0 490 (306/306) AB1 0 509 0 Required 0 490(158/158)
(464) 0 114- 0 999 0.5 Km NNE (53/53) 0233 0899 i 0.114 .
0999 Cs 134 i 0 05 All < LLD All < LLD 0 Cs-137 0 06 All = LLD All = LLD 0 (36) 4 6 ,
Air Radiciodine I-131 0 07 All < LLD All < LLD 0 l (pC4 /m') (464)
Direct (TLD)' Gamma 12.73 (147/147) TM2 15.15(4/4) 13 10(24/24) 0 Quarterly 8 65-18 11 4 2 km WSW 14 14- 10 23-16 60 (mR total) gg7g3 37.79 Surface Water H-3 3000 3145(5/8) DL All < LLD 0 (pCi/ liter) (12) 235-4849 3873(4 4) 7 Mn-54 15 44 0(12/24) DL All < LLD 0 (36) 11 5-163 44 11 05-163 (12/12) l Co-58 15 6 59(10/24) DL 6 59(10/12) All < LLD 0 (36) 1.95-19 7 195-167 4 4 4-Fe-59 30 14 2(4/24) DL 14 2 (4/12) All < LLD 0 (36) 854-205 854 20.5 Co.60 15 66 8(12/24) DL 66 8 (12/12) All < LLD 0 I (36) 22 2 276 22.2 276 Zn-65 30 All < LLD 0 4 4= 4 Nb.95 15 All<LLD All < LLD All < LLD 0 (36)
. . . 1 Zr 95 30 All < LLD All < LLD 0
(
1-131 15 11 0 (6/24) DL 11 0 (6/12) All < LLD 0 (36) 675-152 6.75 152 4- 4 4 Cs-134 15 All < LLD All < LLD 0 (36) 9 . .
Os-137 18 1 53 (1/24) DL 1 53(1/12) All < LLD 0 (36) l single value single value l'7
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 2 of 4)
River Bend Station Docket Number: 50-458 West Feliciana Parish, Louisiana Reporting Period 1/1/95 to 12/31/95 Medium or Type and Total Lower Limit All Indicator Location with Highest Pathway Number of Control Number of of Detection' Stations Mean Annual Mean Sampled (Unit of Analyses (f)3 Range Locationp Nonroutine (LLD) Mean (f) Reported Measure) Performed Range ResuRs Name Mean (f)'
Distance / Direction Range Surface Water Ba 140 i l
(pCulster) AH < LLD All < LLD 0 (36) l La 140 15 42 6(2/24) DL All < LLD 42 6(2/12) 0 (36) 37.9 47.2 37 9-47.2
< -.gg.,q-. .
+
Gross Beta 4 27.2 (20/24) DL 17.7-86 9 3 07(11/12) 0 (36) 156 869 1.60- 5 95 i
i Groundwater H3 3000 All < LLD i ALL < LLD 0 (pCi/ liter) (8) l ,
Mn-54 j 15 All < LLD l All < LLD l
l 0 (8) i l ;
Co 58 15 All < LLD All < LLD 0 (8)
Fe-59 30 All < LLD All < LLD 0 (8) l Co-60 15 All < LLD l All < LLD 0
('E
.< $... < s..
Zn-65 30 All < LLD All < LLD 0 (8)
Nb-95 15 All < LLD All < LLD 0 !
(8) l 4 + 4 . . .
Zr 95 30 All < LLD All < LLD 0 (8)
. . . 4 6-131 15 All < LLD All < LLD 0 (8)
CS-134 15 All < LLD All < LLD 0 l
(8) i 4 +
-t 4 Cs-137 18 All < LLD i All < LLD 0 (8) j Ba-140 l 60 All < LLD i All < LLD 0 I'
... }. . .
La-140 15 All < LLD ! All e LLD 0 (8) l Gross Beta 4 1 80 (1/4) i WU 3 90 (1/4) 3 90 (1/4) 0 (8) single value j 470 m NNE single value Dnnking Water' H-3 3000 An< LLD i All < LLD 0 (pCalliter) (4) l Mn-54 15 All < LLD l All < LLD 0
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 3 of 4)
River Bend Station Docket Number: 50-458 West FeliCiana Parish, Louisiana Reporting Period 1/1/95 to 12/31/95 Medium or Type and Total Lower AllIndicator Location with Highest Control Number of Pathway Number of Limit of Statipns Mean Annual Mean Sampled (Unit of Detection, Locationp Nonroutine Analyses (f) Range Reported Mean (f)
Measure) Performed (LLD) Range ResuLs Mean (f)'
Distance / Direction Range 0"
( ite Zn-65 30 All < LLD j ! All < LLD 0 (12) ; }
Co-60 15 All < LLD All < LLD 0
- (12)
.. 4 .. 4 Nb-95 15 All < LLD All < LLD 0 (12)
Zr 95 30 All < LLD All < LLD 0 (12) 7-1-131 15 All < LLD All < LLD l 0 (12) 4.-- 4 .i . 4 4 Cs.134 15 All < LLD. All < LLD 0 (12)
Cs-137 18 Alf < LLD All < LLD 0 (12)
Ba 140 60 All < LLD i All < LLD 0 (12) !
4.- 4 . 4 .. 4 La 140 15 All < LLD All < LLD 0 (12)
. t. .-- .
Gross Beta 4 2 42(5/12) SWU 3 07 (11/12) 0 3 07 (1112)
(12) 1 70-2.90 4 km upstream 160-595 160-595 Sediment
- K-40' None 1293 (2/2) l 3509(2/2) 3509(2/2) 0 (pCi/kg dry) (4) Required 1254 1332 . 4 km upstream 1427-5591 1427 5591 Cs-134 150 All < LLD All < LLD 0 (4) l 9
Cs-137 180 Ali c LLD SEDU A!! < LLD 0 l
(4) ; 4 km upstream Fish /Invedebrate K-40' None 2334 (4/6) 3009(4/6) 3009 (4/6) 0 (pCi/kg wet) (12) Required 703 3633 4 km upstream 2635-3393 2635 3393
. . . 4 .
Mn-54 130 All < LLD Ali < LLD 0 (12) g 9 Co 58 130 All < LLD j (12)
All < LLD l 0 4...
] 4 l
Fe-59 260 All < LLD : All < LLD 0 (12) !
Co-60 130 All < LLD All < LLD l 0 (12) i
. 4 .- 4 4 Zn-65 ! 260 All < LLD All < LLD 0 (12) i 4 . --.
Cs 134 130 All < LLD j All < LLD 0 (12)
Cs-137 160 All < LLD All < LLD 0 (12) 19
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 4 of 4)
River Bend Station Docket Number: 50-458 West Fe!iciana Parish, Louisiana Reporting Period 1/1/95 to 12/31/95 Medium or Type and Total Lower Limit of All:ndicator Location with Highest Control Pathway Number of Number of Detection' stati,ons Mean Annual Mean Nonroutine sampled (Unit of Analyses (f) Range Locationg (LLD) Mean (f) Reported Measure) Performed Range Results Name Mean (f)'
Distance / Direction Range Veg o 10 ) 87- 8 2 1km W - 556 1 5 (pCa/kg wet)
<- . . e .,
2 K-40 None Required 4785(38/67) G2 5240 N/A 4258 (21/36)
(103) 255-9031 1.1 km NW (18/32) 1566 -8638 3128 7647 l-131 60 All < LLD All < LLo 0 Cs-134 60 All < LLD All < LLD 0 (103)
Cs-137 80 17(1/35) Goc 17 5(2/36) 0 17 5(2/36)
(103) single value 35 km NW 11-24 11 24 NOTES:
(1) Lower Limit of Detection (LLD) as defined in RBS Technical Specifications (NUREG-1172).
(2) Mean and range based on detectable measurements only. The fraction of detectable measurements at specified locations is indicated in parentheses (f).
(3) Specific activities found fr.,r certain common and readily distinguished, naturally-occurring nuclides are included to provide perspective. It should also be noted that other gamma-emitting, naturally-occurring nuclides (e.g., primordial ssries) are often detected but not reported because of the complexities and uncertainties of specific identification.
(4) Quarterly gamma exposure estimates are " normalized" to a 90-day quarter.
(5) The upstream surface water sampling location, though not required, is used as a " control" for drinking water comparisons.
(6) An upstream sediment sampling location, though not required, is used as a " control" for shoreline sediment comparisons.
k 20
RIVER BEND STATION l RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 1
l t
3.2 ComDarison of ODerational and Baseline REMP Results i
Radiciodine and other gamma-emitters in the airborne exposure pathway were not measured at levels above the required LLDs during 1995. Gross beta activities on air particulate filters averaged 0.021 pCi/m at indicator and 0.022 pCi/m8 at l l
control locations in 1995, compared to 0.03 pCi/m' at both indicator and control locations during the preoperational phase of the REMP (Appendix B).
l In the direct exposure pathway, the 1995 net average readings for quarterly TLDs from both indicator and control locations were slightly lower than the corresponding values for the baseline period. Thus far, no appreciable differences have been observed in TLD exposures between indicator and control locations or between the same locations from one year to the next.
In the waterborne exposure pathway, average activities analyzed for required gamma-emitting nuclides were measured below the RBS Technical Specification LLDs during 1995 as had been the case during the preoperational phase (Appendix B). Gross beta and tritium levels in water are compared below:
WATERBORNE AVERAGE GROSS BETA (pCi/l)
Location Pre-OperatiQDal 1990 1911 1992 1R92 1994 1995 Surface Water, Upstream (4 km) 7.80 9 75 4.55 5.15 6.52 3.98 3 07 i
RBS Discharge Line N/A 40 39 33 90 143.55 45 60 106 42.53 Surface Water, Downstream (4 km) 8.10 9.52 5.23 5.59 7.60 5.37 2 81 Drinking Water (Baton Rouge,1-10 bndge) 6 80 9 47 5.05 5 01 5.65 5.30 2.42 j Upgradient groundwater 6 00 6 03 <2 91 <3 02 2.31 4 51 3.90 Downgradient groundwater 4.00 4 73 3.17 3.04 2.78 3 92 1 80 I
i WATERBORNE AVERAGE TRITIUM (pCi/l) l l
Pre-Operational LQGaliQD 1990 1991 1R92 129] 1994 1919 Surface Water, Upstream (4 km) <3000 <209 <371 <355 <362 <324 <249 RBS Discharge Line N/A 20452 7047 5744 4962 10236 3873 Surface Water, Downstream (4 km) <3000 <209 <374 <364 <362 158 235 Drinking Water (Baton Rouge, IH-10 bndge) <3000 <210 188 <360 <373 176 <249 Upgradient groundwater <3000 <211 <366 <352 <372 336 <244 Downgradient groundwater <3000 <207 <363 <348 <373 173 <251 Gross beta activities in the discharge line samples returned to normal in 1993 after the elevated levels of 1992 due to outage decontamination activities. The same observation can be made from 199/ to 1995 levels. As observed in previous years, the annual average gross beta activity for the control location (SWU) averaged the same as that for the indicator location (SWD) The gross beta activity levels in the discharge line (DL), during years with no refueling outages, seemiragly reflect the normal cycles of concentration at which the station cooling towers are operated.
21
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Tritium activities in the discharge line have remained constant on average since 1991, reflecting the releasu already noted in the 1995 Annual Radioactive Effluent Release Report (see also Table 6). These tritium levels reflect a decrease from 1990 due to removal of failed fuel, but represent an increase compared to years prior to 1990, due to more efficient radioactive wastewater treatment and reuse (e g., boiler makeup). In the RBS boiler-reactor, tritium is produced by temary fission of the reactor fuel (23sU), although only a small fraction of that tritium would diffuse through the fuel's cladding.
Tritium is also produced by neutron reactions with certain isotopes of boron, deuterium and lithium when present in the boiler (e g. as control rod material - boron). The particulates (metals and salts) are removed in this treatment leaving the tritium behind as water (e g., ['H-O 'H]). When this water is reused as boiler makeup, the tritium concentration in the water increases.
In the ingestion exposure pathway, no gamma-emitting nuclides were measured above LLDs during 1995, although Cs-137 -
was quantified in three vegetation samples, well below LLD limits. There appeais to have been no increase in radionuclide concentrations attributable to RBS operation in food / forage media over baseline levels (Appendix B). Naturally-occurring K-
! 40 was measured at an average of 4786 pCi/kg in indicator vegetation and at an average of 4258 pCi/kg in control vegetation in 1995, roughly the same levels encountered prior to RBS operation (Appendix B). Another natural nuclide, Be-7, averaged 827 and 526 pCi/kg in indicator and control vegetation samples, respectively, during 1995. Although
', presumably present, Be-7 was not quantified during the preoperational phase for comparison.
- 3.3 Comoarison of REMP Results with Ooerating Controls The only measurable increases in concentrations of radionuclides or levels of radiation, attributable to plant operation, in the vicinity of RBS during 1995 appear to have been the expected low levels in the liquid Discharge Line. The indicator vs.
control comparisons for airborne gross beta activity (Section 3.1.1; Table 5 and Appendix A) corroborate the reports of limited or no releases of particulates or radiciodine in 1995. The 1995 TLD data (Section 3.1.2; Table 5 and Appendix A) showed no appreciable differences in direct radiation exposures between indicator and control locations. Excerpted liquid effluent data from the Annual Radioactive Effluent Release Report are listed in Table 6 along with the corresponding Discharge Line analytical data for those nuclides which were measured by the REMP during 1995. These nuclide activities were well below the NRC reporting levels, but are listed here for comparison to substantiate the adequacy of source control and effluent monitoring at River Bend Station.
1 22
I RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 6 l
SUMMARY
COMPARISON OF LIQUID EFFLUENT QUANTITIESIACTIVITIES l AND REMP DISCHARGE LINE MONITORING RESULTS Quantities Released 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Totals for 1995 Liters of Effluent 5.34E+06 7.65E+06 8.57E+06 7.81 E+06 2.94E+07 Liters of Dilution 8.20E+08 1.01 E+09 1.26E+09 1.49E+09 4.58E+09 Curics of H-3 4.95E+00 5.88E+00 5.23E+00 4.41 E+00 2.05E+01 Curies of Cr-51 1.30E-01 2.11 E-01 7.41 E-02 1.08E-01 5.23E-01 Curies of Mn-54 3.30E-02 5.17E-02 2.85E-02 2.63E-02 1.40E-01 j Curies of Co-58 4.93E-03 7.36E-03 3.47E-03 6.08E-03 2.18E-02 i Curies of Fe-59 5.16E-03 9.87E-03 5.29E-03 9.02E-03 2.93E-02 Curies of Co-60 5.28E-02 8.04E-02 4.47E-02 3.47E-02 2.13E-01 i Curies of I-131 6.04E-03 1.21 E-02 8.70E-03 9.91 E-03 3.68E-02 Curies of La-140 1.18E-01 1.68E-01 1.27E-01 8.84E-02 5.01 E-01 Predicted (Extrapolated) Specific Activities (pCill) versus 1995 REMP j Measured Nuclide 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Mean REMP ;
H-3 5998 5778 4123 2944 4711 3873 Cr-51 158.54 207.34 58.41 72.11 124.10 121.00 Mn-54 l
39.98 50.80 22.47 17.56 32.70 44.00 l Co-58 5.97 7.23 2.74 4.06 5.00 6.59 l Fe-59 6.25 9.70 4.17 6.02 6.54 14.24 {
Co-60 63.97 79.01 35.24 23.17 50.35 66.76 l l-131 7.32 11.89 6.86 6.62 8.17 11.00 La-140 142.97 165.09 100.11 59.02 116.80 42.60 1
23
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 4
APPENDIX A Listinas of 1995 REMP Results
(
- Tha following tables list individual analytical results and direct measurements of radiation (TLD exposures) recorded by the Radiological Environmental Monitoring Program (REMP) during 1995. Concentrations measured for certain common and i
- readily-distinguished, naturally-occurring nuclides are included to provide perspective. it should be noted that other gamma-emitting, naturally-occurring nuclides (e.g , primordial series) were often detected but are not listed because of the complexities and uncertainties of specific identifications.
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4 24
.. _. _ _ _ - . . _ . . . . ~ . .. . _ _ .
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gross Beta Activities (pCi/ liter)in Water (LLD = 4 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN 2.70 2.90 45.90 1.90 FEB < 2.10 < 2.10 33.30 < 1.80 2.60 < 1.80 MAR 2.50 1.70 39.80 2.50 APR < 2.30 < 2.30 56.40 1.60 MAY 2.60 2.50 18.70 1.80 2.00 < 1.90 JUN < 3.51 < 3.51 36.40 5.28 JUL 2.70 2.30 20.20 2.70 AUG 2.20 2.70 17.70 < 1.80 2.80 < 1.80 SEP 1.56 < 2.59 86.90 5.95 OCT 3.86 < 2.24 42.30 2.73 NOV < 3.24 < 3 24 66.60 < 3.24 3.66 3.90 DEC 4.39 < 3.47 46.20 < 3.47 MAX 4.39 2.90 86.90 1.80 5.95 3.90 AVG 2.81 2.42 42.53 1.80 3.07 3.90 MIN 1.56 1.70 17.70 1.80 1.60 3.90 Tritium Activities (pCilliter)in Water (LLD = 3000 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU ist Quarter < 250 < 249 3721 < 251 < 249 < 244 2nd Quarter <230 < 230 3468 < 228 < 230 < 230 !
3rd Quader < 234 < 234 4849 <233 < 233 < 233 4th Quarter 235 < 229 3454 < 229 < 225 < 224 MAX 235 < LLD 4849 < LLD < LLD < LLD AVG 235 3873 MIN 235 3454 25
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma-Emitting Nuclide Activity (pCl/ liter)in Water CESIUM - 134 (LLD = 15 pCill)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 4.66 < 5.12 < 4 47 < 586 FEB < 6.35 < 5.40 < 5.56 < 9.38 < 6.98 < 11.4 MAR < 4.52 < 3.59 < 3 85 < 3.72 APR < 3.17 < 2.99 < 5.44 < 3.52 MAY < 3.79 < 3.51 < 4 24 < 0.26 < 4 09 < 8.32 JUN < 2.52 < 2.29 < 2.80 < 2.59 JUL < 2.81 < 1.77 < 3.15 < 2.72 AUG < 2.41 < 4.49 < 2.33 < 4.97 < 4 66 < 4.28 SEP < 3.13 < 3.15 < 3.58 < 3 63 OCT < 2 66 < 2 43 < 3.59 < 3.90 NOV < 0.52 < 0.85 < 2.31 < 3.01 < 1.09 < 2.89 DEC < 3.60 < 4 43 < 3.25 < 2.87
~
MAX < LLD <LLD < LLD < LLD < LLD < LLD AVG MIN CESIUM - 137 (LLD = 18 pCill) )
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 5.28 < 5.48 < 4.32 < 5.15 l FEB < 8.68 < 6 44 < 6.15 < 9 84 < 7.87 < 11.90 i MAR < 5. 54 < 3 65 < 4 43 < 4 68 APR < 3.27 < 3.17 < 5.61 < 3.81 MAY < 3.90 < 3.67 < 4.17 < 7.68 < 4.58 < 9.64 JUN < 2.74 < 2.51 1.53 < 2.63 JUL < 3 06 < 1.93 < 3 67 < 2.99 AUG < 2.53 < 4 68 < 2.63 < 5.37 < 4.62 < 4 90 SEP < 3.29 < 3.34 < 3.92 < 3 44 OCT < 2.91 < 2.59 < 3.96 < 4.88 NOV < 0.56 < 092 < 2.39 < 2 42 < 1.05 < 3 25 DEC < 3 54 < 4 05 < 3.50 < 2.84 MAX < LLD < LLD 1.53 < LLD < LLD < LLO AVG 1.53 MIN 1.53 26
I RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma-Emitting Nuclide Activity (pCl/ liter)in Water IODINE 131 (LLD = 15 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 14.90 < 14,50 < 12.00 < 13 40 1 FEB < 13 80 < 12 30 6.75 < 07.3 < 12.90 < 10 2 MAR < 14.90 < 14.90 8.54 51490 APR < 14 30 < 14 90 10.40 < 14.90 l MAY < 14 80 < 14 20 < 16.30 < 06 7 < 14 90 < 11.6 JUN < 14 80 < 14.90 < 15.90 < 14.90 JUL < 14.70 < 14.90 < 14.90 < 14 80 AUG < 14.90 < 13.90 14.30 < 12.8 < 14.90 < 14.0 SEP < 14 90 < 14 90 15.20 < 14.80 OCT < 10.50 < 12.50 10.90 < 14.90 NOV < 5.25 < 10 40 < 15.00 < 14.8 < 11.80 < 13.6 DEC < 13.60 < 14.90 < 14 90 < 14.90 I I
I l
MAX < LLD < LLD 15.20 < LLD < LLD < LLD l AVG 11.0 1 I
MIN 6.75 BARIUM 140 (LLD = 60 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 32.90 < 33.90 < 30.70 < 32.70 FEB < 42 70 < 34 50 < 31 10 < 19 60 < 3910 < 42.90 MAR < 38.60 < 29.40 < 35.80 < 34 60 APR < 27.60 < 26.00 < 34.80 < 32.20 MAY < 30.70 < 32.10 < 37.00 < 22.20 < 32.00 < 39.30 JUN < 26 60 < 25 90 < 28 80 < 28.40 JUL < 27.60 < 22.70 < 27.80 < 25 60 AUG < 27.60 < 28.70 < 25.70 < 35 80 < 30.20 < 27.50 SEP < 28.70 < 29.20 < 31.70 < 29.50 OCT < 21.70 < 23 40 < 28 70 < 32.10 NOV < 7.77 < 14 70 < 23.70 < 25.50 < 17.70 < 21.90 DEC < 32.70 < 37.50 < 27.60 < 27.90 l
MAX < LLD < LLD < LLD < LLD < LLD < LLD AVG MIN l
27
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma-Emitting Nuclide Activity (pCilliter)in Water LANTHANUM 140 (LLD=15 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 9.79 < 11.80 37.90 < 9 88 FEB < 9.88 < 12.90 < 14.70 < 13.60 < 11.10 < 14.90 MAR < 10 30 < 11.90 47.20 < 13.60 APR < 8.89 < 9 68 < 14.20 < 10.30 MAY < 10.10 < 11.60 < n90 < 07.36 < 10.20 < 10 80 JUN < 8.36 < 8 47 < 12.00 < 9.50 JUL < 10 30 < 8 42 < 11.00 < 8.94 AUG < 9.76 < 10.50 < 9.06 < 10.00 < 10.20 < 10.70 SEP < 9.37 < 10.90 < 12.00 < 10 40 OCT < 7.38 < 9.27 < 11.20 < 10.00 NOV < 2.60 < 5.36 < 8 62 < 12 40 < 5 68 < 9 27 DEC < 9 64 < 13.20 < 10 40 < 10.40 MAX < LLD < LLD 47.2 < LLD < LLD < LLD AVG 42.6 M11 37.9 MANGANESE - 54 ( LLD=15 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 4 40 < 4.78 80.60 < 5.76 FEB < 7.49 < 5.79 70.50 < 9.49 < 7.42 < 11.40 MAR < 6.15 < 4.24 20.20 < 5.31 APR < 3.46 < 3.09 163.00 < 3 65 MAY < 4.28 < 3 98 14.10 < 7.20 < 4 42 < 12.40 JUN < 2.95 < 2.46 11.50 < 2.68 JUL < 2.92 < 1.95 54.50 < 2.93 AUG < 2.70 < 4.68 20.20 < 4.43 < 5.08 < 4 58 SEP < 3 28 < 3.09 20.10 < 3.80 OCT < 2 63 < 2.52 17.30 - < 3.67 NOV < 0.60 < 1.02 36.10 < 2.80 < 1.16 < 2.90 DEC < 3 23 < 4.34 20.40 < 3.01 {
l MAX < LLD < LLD 163.00 < LLD < LLD < LLD AVG 44.04 MIN 11.50 28
l I
RIVER BEND STATION !
RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l Gamma-Emitting Nuclide Activity (pCl/ liter)in Water IRON - 59 (LLD = 30 pCi/L)
INDICATORS CONTROLS )
PERIOD SWD DW DL WD SWU WU i l
JAN < 10.10 < 11.50 20.50 < 11.20 '
FEB < 13 40 < 12 20 < 10 10 < 13.30 < 13 90 < 17.20 MAR < 11.10 < 9.67 < 9 91 < 7.83 APR < 7.16 < 7.24 17.20 < 9.33 MAY < 10 20 < 8.96 < 13 40 < 11.70 < 8 45 < 19.10 JUN < 5.92 < 6.50 < 7.71 < 6.54 JUL < 7.61 < 5 03 < 9 47 < 6 87 AUG < 6 42 < 10.50 < 6.24 < 10.50 < 11.80 < 9 87 SEP < 7.65 < 7 99 < 11.70 < 8 33 l
OCT 6.11 < 6.34 8.54 < 10.90 NOV < 1.59 < 2.68 10.70 < 6.69 < 3.26 < 7.06 DEC < 6.91 < 10.50 < 9.17 < 7.88 MAX < LLD < LLD 20.50 < LLD < LLD < LLD AVG 14.24 MIN 8.54 COBALT 58 (LLD = 15 pCl/L) l INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU I
JAN < 5.57 < 5 05 8.15 < 5 48 FEB < 8.12 < 4 99 9.43 < 8.97 < 8.87 < 10.50 MAR < 4.18 < 4.18 2.88 < 5.29 APR < 3.55 < 3 62 16.70 < 4.33 MAY < 4 22 < 3 97 < 5 60 < 7.80 < 4 65 < 7.94 JUN < 3.12 < 2.97 < 3.75 < 3.24 JUL < 3.15 < 2.10 7.06 < 3.10 AUG < 2.85 < 4.38 1.95 < 5.17 < 4 75 < 4.16 SEP < 3.36 < 3.37 4.60 < 3 64 OCT < 2.84 < 2.80 6.61 < 4.91 NOV < 0 65 < 0 96 5.00 < 3 85 < 1 45 < 3.52 DEC < 4.16 < 5.22 3.48 < 3.49 MAX < LLD < LLD 16.70 < LLD < LLD < LLD AVG 6.59 MIN 1.95 29
l RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 I
l Gamma-Emitting Nuclide Activity (pCl/ liter)in Water l
)
INDICATORS CONTROLS l PERIOD SWD DW DL WD SWU WU JAN < 4.55 < 6 68 110.00 < 5.57 FEB < 6.22 < 5.48 104.00 < 9.16 < 5 77 < 9.30 MAR < 6.19 < 4 25 32.60 < 4.52 APR < 3.75 < 3.44 276.00 < 3 63 MAY < 4.50 < 3 88 25.70 < 6.24 < 4.54 < 4.43 JUN < 2.76 < 2.85 22.20 < 2.71 JUL < 3.45 < 1.92 82.80 < 2.76 AUG < 2.61 < 4.85 32.30 < 5.91 < 5.32 < 4.41 SEP < 3.57 < 3.13 26.10 < 3.69 OCT < 2.78 < 2.83 27.40 < 3.97 NOV < 0.62 < 0.91 37.90 < 2.75 < 1.14 < 3.22 DEC < 3 09 < 4.99 24.10 < 3.35 MAX < LLD < LLD 276.00 < LLD < LLD < LLD AVG 66.76 MIN 22.20 ZINC 65 (LLD = 30 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 9 59 < 10.3 < 10.50 < 11 40 FEB < 14.50 < 14.5 < 12.90 < 16.30 < 15.20 < 29.60 MAR < 9 83 < 8 48 < 8 80 < 11 40 APR < 7.15 < 6 75 < 14.00 < 7.47 MAY < 6.57 < 8.28 < 11.40 < 13.40 < 8.07 < 26.00 JUN < 6.41 < 4.92 < 5 96 < 6.25 JUL < 5 80 < 3 89 < 7.70 < 5.58 i AUG < 5.24 < 7.32 < 5.41 < 9.74 < 9.72 < 9 47 SEP < 5 83 < 6 86 < 8.36 < 6.36 OCT < 545 < 4 98 < 8 86 < 9 34 NOV < 1.21 < 1.91 < 5 05 < 7.77 < 2.45 < 7.26 DEC < 6.36 < 9 33 < 7 68 < 6 86 MAX < LLD < LLD < LLD < LLD < LLD < LLD AVG MIN 30
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l
Gamma-Emitting Nuclide Activity (pCl/ liter)In Water l NIOBlUM 95 (LLD = 15 pCl/L)
INDICATORS CONTROLS l
PERIOD SWD DW DL WD SWU WU JAN < 6.56 < 6 49 < 5.72 < 7.55 t FEB < 10.50 < 7.31 < 7.13 < 9.86 < 12.10 <
14.90 l MAR < 5.87 < 6.05 6.50 < 6.91 l APR < 4.28 < 4 46 < 7.01 < 5 22 l MAY < 5.19 < 4 97 < 6 74 < 7.66 < 5.27 < 13.40 JUN < 4.16 < 3.46 < 3.93 < 3.78 l JUL < 4.12 < 2.88 < 4.31 < 4.15 AUG < 3.65 < 5.36 < 3.62 < 5.81 < 5.54 < 6.16 SEP < 4.85 < 4.35 < 5.20 < d.71 l OCT < 3.53 < 3.47 < 4 84 < 4.68 l
NOV < 0.92 < 1.54 < 3.26 < 3.82 < 1.91 < 4.66 DEC < 5.18 < 5.88 < 4.29 < 4.06 MAX < LLD < LLD 6.50 < LLD < LLD < LLD AVG 6.50 MIN 6.50 l
ZlRCONIUM 95 (LLD = 30 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 9 65 < 10.50 < 7E < 11.50 FEB < 14.30 < 13.30 < 10.30 -
18 60 < 8 67 < 17.50 MAR < 8.63 < 7.58 < 8 28 < 10.30 APR < 6 61 < 6.19 < 9.89 < 7.28 MAY < 8.49 < 7.50 < 10.70 < 1*.30 < 8 72 < 17.50 JUN < 5.23 < 4.95 < 5.41 < 5.32 JUL < 5.99 < 3.88 < 6.40 < 6.11 AUG < 5 09 < 7.10 < 4.83 < 10.50 < 9.82 < 8.66 SEP < 6.65 < 7.04 < 7.43 < 7.33 OCT < 5.52 < 5.66 < 6.95 < 8.39 NOV < 1.25 < 2.08 < 4.56 < 7.21 < 2.49 < 5.54 DEC < 7.21 < 9.41 < 6.70 < 5.78 i
MAX < LLD < LLD < LLD < LLD < LLD < LLD AVG l MIN t.
f 8
f 31
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma Emitting Nuclide Activity (pCi/ liter)in Water POTASSIUM 40 (No LLD )
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN FEB MAR 33.1 50.6 45 6 47.6 APR 49 8 72.1 93.8 MAY 78.5 JUN 30.2 34.3 JUL 45.6 59.3 AUG 62.6 70.9 SEP 54.7 66.1 OCT 41.4 28 2 57.2 49.3 NOV 18.2 15 1 56 5 DEC 47.1 73.4 MAX 62.6 78.5 72.1 93.8 AVG 40 0 44 6 58 4 60.8 MIN 18.2 15.1 45 6 34.3 CHROMlUM - 51 (No LLD)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN 62.7 FEB 156.0 MAR 177.0 APR 309.0 MAY 50.3 JUN 140.0 JUL 114.0 AUG 44.8 SEP 85.5 OCT: 83.1 NOV 91.5 DEC 134.0 MAX 309.0 AVG 120.7 MIN 44.8 32
RIVER BEND STATION l RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 a
4 Normalized Gamma-Ray Exposure Summary (mR)
Quarterly Thermoluminescence Dosimeter Results INDICATOR LOCAT10N IST_QIB 2ND._QIB 3RD_QIB 4TH QTR MFAN TA1 8.96 9.18 8.93 11.75 9.70 TA2 12.28 11.77 13.24 15.90 13.30 TB1 14.07 13.93 13.47 15.58 14.26 TB2 13.78 13.97 13.70 14.90 14.09 l TC1 13.78 12.73 13.83 13.00 13.34 TC2 11.53 11.00 11.96 13.90 12.10 TCS 11.64 11.20 12.32 14.90 12.51 TD1 13.64 12.44 13.83 18.11 14.51 TD2 12.49 12.25 12.87 13.90 12.88 TE1 12.19 12.74 12.69 15.04 13.17 TE2 10.35 10.81 10.49 11.90 10.89 TF1 11.88 12.74 12.86 14.02 12.88 TF2 13.14 13.68 13.98 13.90 13.67 TG1 13.74 14.03 13.92 15.04 14.18 TG2 13.24 12.54 13.06 14.90 13.43 TH1 10.33 10.47 10.39 10.95 10.54 TH2 11.42 12.25 12.23 12.90 12.20 TJ1 12.09 11.95 11.63 14.02 12.42 TJ2 10.95 10.52 10.81 10.76 TK1 12.71 12.44 12.95 15.04 13.29 TK2 13.26 13.41 16.80 14.49 TKS 11.26 11.60 11.20 12.70 11.69 TL1 12.64 12.15 12.58 13.00 12.59 TL2 10.57 10.62 10.35 10.51 TLS 12.94 13.26 14.06 14.82 13.77 TM1 11.11 10.66 10.79 11.98 11.14 TM2 14.32 14.14 14.34 17.79 15.15 TN1 13.83 13.02 15.04 13.96 TN2 10.57 10.54 12.85 11.32 TP1 13.56 12.74 13.19 15.58 13.77 TP2 12.88 12.77 12.78 12.81 TQ1 12.33 12.54 12.57 13.78 12.81 TQ2 12.05 12.38 11.59 13.90 12.48 TOS1 12.96 13.59 13.22 13.84 13.40 TQS2 11.58 11.60 11.83 11.78 11.70 TR1 8.65 9.08 9.11 9.83 9.17 TR2 12.49 13.11 12.87 16.90 13.84 TRS 12.71 13.30 13.24 15.90 13.79 MAX 14.32 14.14 14.34 18.11 15.15 AVG 12.13 12.25 12.36 14.17 12.70 MIN 8.65 9.08 8.93 9.83 9.17 33
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Normalized Gamma-Ray Exposure Summary (mR)
Quarterly Thermoluminescence Dosimeter Results CONTROL LOCATIQN 1SLQIB 2ND OTR 3RR.QIB 4TH QTR MEA 3 TAC 12.26 12.77 12.60 15.81 13.36 TEC 11.74 12.82 12.97 14.90 13.11
) TGS 12.94 12.18 12.20 14.82 13.04 THS 15.71 14.53 14.71 16.80 15.44 TLC 10.86 10.23 10.63 11.86 10.89 TQS3 12.67 12.22 12.40 13.84 12.78 MAX 15.71 14.53 14.71 16.80 15.44 AVG 12.70 12.46 12.58 14.67 13.10 MIN 10.86 10.23 10.63 11.86 10.89 INDICATOR CONTROL MAX 18.11 16.80 AVG 12.73 13.10 MIN 8.65 10.23
)
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y RIVER BEND STATION 1 RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l l
Charcoal Cartridge lodine-131 Activity (E-2 pCl/m^3)(LLD = 0.07 pCl/m^3)
Enrio.d Ending AA1 AB1 AR1 AM3 AE1 AQ12 ALC AMS fLG3 l 01/03/95 <2.30 < 1.97 < 1.67 < 1.57 <1.67 <1.98 <2.06 < 1.69 <2.13 01/10/95 <2.30 <4.12 <t33 < 1.77 <1.39 <1.76 < 1.75 <1.62 < 1.79 01/16/95 <2.37 <3.59 <2.31 <2.03 <1.92 <1.47 <2.61 < 1.88 <2.84 01/24/95 <t48 < 1.21 <1.79 -2 92 <1.88 <1.82 <1.79 <2.09 <1.29 01/31/95 <1.92 <2.02 < 5.58 <2.00 <1.52 < 1.94 <1.55 <1.65 <1.90 02/07/95 <1.36 <1.88 <2.49 <2.04 <1.19 <2.22 <1.37 < 1.96 <1.60 02/14/95 < 1.81 <2.44 <3.34 <2.13 <2.15 <2.55 <2.02 <2.22 <1.79 l 02/21/95 <1.62 <1.96 <2.11 <1,93 <2.09 <2.20 <1.85 <2.20 <2.50 02/28/95 <2 40 <1.91 <2.43 <2.10 <1.98 <1.95 <2.03 < 1.11 <1.99 03/07/95 <162 <2.24 <2.72 <1.21 <1.95 < 1.84 <1.78 <2.24 <2.12 03/15/95 <1.40 <2.45 <1.22 < 1.74 <1.63 <2.34 <1.70 <2.44 03/22/95 <2.15 <2.20 <2.18 <3.05 <2.09 <2.10 <2.10 <1.91 <1.44 03/27/95 <2.25 <2.22 <2.60 <3.29 <3.41 <1.90 <2.09 <2.81 04/04/95 < 1.84 <2.18 < 1.79 <1.95 <1.25 <2.20 <1.84 <1.93 <1.67 04/11/95 <1.74 <1.95 <1.19 <2.27 <1.95 <2.48 <2 02 <2.13 <2.31 04/18/95 <2.22 <2.92 <2.75 <2.4 5 <1.93 <2.80 <2.29 <2.36 <1.59 04/25/95 <2 41 <2.04 <1.70 <2.41 <2.32 <2.18 <2.19 <2.01 <1.64 05/02/95 < 1.77 <2.24 <2.22 <2.01 <1.79 <2.47 <2.26 <2.15 <1.65 05/09/95 < 1.67 <1.61 <1.80 <1.72 <1.05 <2.00 <0.00 <183 < 1.15 05/16/95 <2.06 <2.60 <2.88 <2.05 <2.20 <2.16 <2.29 <2.05 <1.87 05/23/95 <2.22 <1.77 <3.21 <2.02 <1.98 <2.16 <2 20 <2.26 <1.72 03/31/95 < 1.71 <2.03 <2.20 < 1.95 < 1.52 <161 <1.65 < 1.76 <1.18 06/06/95 <1.78 <1.76 <3.46 <2.20 <2.11 <2.06 <2.49 <2.32 <1.57 i 06/13/95 < 1.65 <2.02 <3.11 <2.38 <1.72 <0.00 <3 41 <2.20 <2.38
!O6/21/9J <197 <1.69 <1.56 <1.81 <1.71 < 1.41 <2.58 <1.66 <2.10 06/27/95 <2.30 <2.46 <3.62 <3.13 < 1.90 <2.53 <2.65 <2 64 <2.50 07/05/95 < 1.47 <1.86 <3.67 <1.94 <1.51 <1.55 <1.37 <1.46 <2.19 07/11/95 <1.48 <2.88 <3.18 <2.50 <1.93 <2.97 <2.51 <1.82 <2.29 07/18/95 <2.23 <9.09 <2.54 <8.48 <2.14 <2.19 < 1.92 < 1.80 < 1.30 07/25/95 < 1.89 <1.95 <1.74 <2.23 <2.06 <2.32 <2.40 08/01/95 < 1.97 <2.64 <1.93 < 1.70 <3.11 <2.01 <1.87 08/08/95 < 1.64 <2.80 <2.17 <2.76 <1.60 <1.72 < 1.69 08/15/95 <1.98 <4.59 <2.32 <1.69 <2.03 <2.14 <1.66 <2.25 <1.59 08/22/95 <189 <2.60 <2.42 <2.10 <1.68 <1.94 <168 <1.61 <2.42 08/29/95 <1.46 < 1.79 <2.59 <2.20 <1.86 <1.51 <2.18 <1.51 <2.18 09/05/95 <1.96 <1.53 <2.85 <2.24 <1.54 <2 43 <2.78 <2.32 <1.86 09/12/95 <1.76 <2.41 <2.13 <2.53 < 1.86 <2.47 <1.74 <2.00 <1.96 09/19/95 <2 21 <5.09 <2.38 <1.93 <1.83 <2 07 <2.06 <1.94 <2.02 09/26/95 <2.09 <2.91 <2.00 <3. 80 < 1.71 < 1.92 <1.91 <1.93 10/03/95 <2.18 <2.30 <1.87 <1.64 < 1.87 <2.65 <2.02 <1.50 10/10/95 <2.06 <2.32 < 1.76 <1.87 < 1.56 <2.40 <1.82 <2.27 10/17/95 <2.21 <2.09 <2.01 <1.76 <2.07 <2.97 <2.07 <2.08 10/24/95 < 130 <2.35 < 1.34 < 1.61 <1.96 <1.77 <0.81 <2.30 10/31/95 <2.05 <2.22 < 1.83 < 1.97 < 1.4 5 <2.55 <1.63 < 1.66 <2.01 11/07/95 <2.17 <2.04 <1.87 <1.68 <2.30 < 1.81 < 1.64 <2.00 < 1.91 11/14/95 < 1.88 <2.46 <2.26 <2 06 <2.39 <2.34 < 1.77 <2.28 <1.95 11/21/95 <1.39 <2.28 <2.23 <2.71 <2.59 <2.66 <2.64 <2.30 <2.03 11/28/95 <1 64 <2.20 <1.92 <2.16 <2.24 <2.55 <2.22 < 1.90 <2.66 12/05/95 < 1.86 <2.18 <2.60 <2. 73 <2.48 <2.67 <2.18 <1.88 < 1.51 12/12/95 < 1.89 <2.69 <2.02 <2.57 <2.43 <2.02 <1.67 <2.28 < 1.73 12/19/95 < 1.97 <2.05 <2.21 <2.09 < 1.91 <2.13 <1.94 <2.32 <2.07 12/27/95 < 1.50 <2.19 < 1.78 <2.18 <188 <1.92 <2.27 < 1.38 <5.05 01/03/96 <168 < 1.70 < 1.80 <2.04 <2.72 <2.46 <2.38 < 1.90 < 1.86 MAX <LLD <LLD <LLD <LLD <LLD <LLD (LLD (LLD <LLD j AVG i MIN 35
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Air Particulate Filter Gross Beta Activity (E-2 pCl/m^3)(LLD = 0.01 pCi/m^3) farl.pd Indicators Controls ED.dlDs AA1 AB1 AB1 AKE AP.1 AQ.32 ALG AME AG.3 01/03/95 1 60 1.40 2.00 1.80 1.30 2 60 2.00 2.00 1.10 01/10/95 1.10 0.70 1.70 1.60 1.30 1.30 1.40 2.00 2.10
- 01/16/95- 1.20 0 60 1.60 1.30 1.00 1.60 1.20 1.70 1.60 01/24/95 0.90 0.90 1.20 0.90 0.70 1.20 1.10 1.20 0.90 01/31/95 0.70 0.80 1.00 0.90 0.80 1.20 1.00 1.10 1.30
} 02/07/95 1.10 1.20 t40 1.20 1.00 1.40 1.20 1.60 1.50 02/14/95 0.90 1.20 1.40 1.20 1.00 1.40 1.20 1.60 1.20 02/21/95 0.70 0.70 0.90 0.90 0.60 0 80 1.20 0.90 1.00 02/28/95 0 90 0.90 1.40 1.00 0.80 1.00 1.00 1.20 1.40 a 03/07/95 1.20 0.90 1.40 1.10 0.80 1.10 1.60 1.70 1.80 03/15/95 0 90 1.20 1.70 1.30 1.10 1.50 1.60 1.90 03/22/95 0.90 1.00 1.40 0 80 0.80 1.70 1.40 1.40 1.20
{ 03/27/95 1.10 1.00 1.70 1.10 1.40 1.70 1.70 1.60 04/04/95 1.30 1.30 1.60 1.80 1.00 2.00 2.10 1.80 1.50 04/11/95 0.90 0.70 1.00 1.10 0.60 1.00 1.10 1.10 1.20 04/18/95 1.10 1.00 1.30 1.60 0.80 1.20 1.50 2.10 1.40 04/25/95 0.80 0.70 0.90 1.00 0.50 0 80 0.90 0.40 0.90 05/02/95 2.00 16 1.50 1.50 4.30 1.50 1.90 1.80 1 60 05/09/95 1.40 1.20 2.00 2.10 2.60 1.30 1.10 1.30 1.30 03/16/95 1.30 1.10 1.10 1.00 2.50 0.90 1.40 1.10 0.90
+
05/23/95 1.40 1.40 1.10 1.00 5.90 1.10 1.20 1.40 1.50 05/31/95 1.40 1.10 1.00 1.00 2.20 1.10 0.90 1.30 1.10
! 06/06/95 0.90 1.10 0.80 1.20 1.90 1.10 0.60 1.20 1.00 06/13/95 1.51 1.32 1.42 1.69 2.77 1.26 1.68 1.63 1.66 06/21/95 2.50 2.63 2.96 2.58 3.29 2.58 2.94 2.54 2.83 03/27/95 3.25 2.85 2.78 3 27 4.27 2.53 3.77 3.22 3 30 07/05/95 1.86 1.59 1.81 1.93 2.78 2.16 2.43 1.68 1.91 07/11/95 2.43 2.00 2.16 2.39 3.15 2.80 3.07 2.17 2.90 1 07/18/95 2.47 2.63 2,62 4.14 4.31 2.49 2.83 2.74 2 46 l 07/25/95 1.76 1.75 2.t 7 1.78 2.39 1.96 1.75 j
, 08/01/95 1.35 1.29 1.64 1.26 1.43 1.44 1.37 )
08/08/95 1.49 1.72 1.65 1.73 1.82 1.77 1.67 08/15/95 2.23 1.10 2.25 1.86 2.23 2.18 1.95 2.26 2.20 08/22/95 2.21 1.89 2.26 1.82 2 51 2.42 2.78 2.62 2.54 08/29/93 3 04 2.30 3.37 2.37 5.75 3.50 3.26 3.17 3.04
- 09/05/95 3.92 3.57 4.25 3.66 1.60 4 60 4.79 4.45 4.53 09/12/95 4 80 3.91 4 89 4.17 1 58 5 26 5.27 4.90 4.70 09/19/95 2.92 3.25 2.75 2.49 2.77 3.08 2.89 2.41 2.57 09/26/95 3.10 3.23 2.92 3.34 3.27 3.29 3 31 3 23 10/03/95 3 55 3 40 3.57 3.28 3 84 3.92 3.73 3.81 10/10/95 2.52 2 59 2.75 2.44 2.71 2.83 2.73 2.62 10/17/95 2.53 2.67 2.66 2.95 2 68 2.63 2.36 2.67 10/24/95 2.27 2.10 2.27 2.09 2.22 2.47 2.23 2.00 10/31/95 2.41 2.36 2.18 2.24 2 47 2.06 2.51 2.36 2.29 11/07/95 2.27 2.07 2.23 2.40 2.11 2.61 2.40 2 41 1.20 11/14/95 2.2? 2.48 2.36 2.39 2.40 2.34 2.71 2.32 2.35 11/21/95 3.78 3 62 9' 3 97 3 68 3 83 4.10 3.65 3.41 11/28/95 3.52 3 57 ,5 3 65 3 80 3.77 3.78 3 35 3.69 12/05/95 3.14 3.02 3 55 3.16 3.33 3 54 3 11 2.93 2.92 12/12/95 3 35 3.38 3.33 3 16 3.38 3 29 3 49 3.15 3.08 12/19/95 1.83 1.12 1.65 16t 1.61 1.57 1,60 1.54 1.55 l 12/27/95 3 94 3 83 3 98 4.15 4 23 4.10 4.24 4 33 3 05 1 01/03/96 2.87 2.75 2.73 2 92 2.50 2 66 3.23 2 88 1.73 MIN 0.70 0 60 0.80 0 80 0 50 0 80 0 60 0 40 0.90 MAX 4.80 3 91 4 89 4.17 5 90 S 26 5 27 4 90 4.70 AVG 2.00 1.78 2.12 2 09 2.27 2.15 2.24 2.18 2.10 INDICATOR MIN
- 0.60 MAX: 5.90 AVG: 2 07 CONTROL MIN: 0.40 MAX: 5.27 AVG: 2.17 '
36
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Air Particulate Filter Composite Cs 134 Activity (E 2 pCl/m^3) by location (LLD = 0.05 pCl/m^3)
PIBJOD AA1 AR1 AR1 AtiS AE1 AQS2 ALG At1S AGS iST QTR < 0.10 < 013 < 0.11 < w J9 < 0.10 < 0.11 < 0.10 < 008 < 0.11 2ND QTR < 0.34 < 0.39 < 0.33 < 0.33 < 0.26 < 0.31 < 0.45 < 0.30 < 0.28 3RD QTR < 0.26 < 0.57 < 0.37 < 0.54 < 0.50 < 0.29 < 0.53 < 0.33 < 0.29 4TH QTR < 0.41 < 0.57 < 0.35 < 040 < 0.23 < 0.38 < 0.23 < 0.30 < 0.29 MAX < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD AVG MIN Air Particulate Filter Composite Cs-137 Activity (E-2 pCi/m^3) by location (LLD = 0.06 pC1/m^3)
PERIQQ AA1 AB1 221 AtiS AE1 AQS2 ALG AtiS AGS 1ST QTR < r70 < 0.10 < 0.08 < 0.07 < 0.08 < 0.08 < 0.10 < 0.06 < 0.10 2ND QTR vt < 0.36 < 0.48 < 0.13 < 0.30 < 0.13 < 0.58 < 0.12 < 0.35 3RD QTR = a si < 0.71 < 040 < 061 < 0.52 < 0.41 < 0.35 < 0.11 < 048 4TH QTR < 0.10 < 0.52 < 0.50 < 032 < 0.32 < 0 35 < C.22 < 0.10 < 0.39 MAX < LLD <LLD < LLD < LLD < LLD < LLD LLD < LLD <LLD AVG MIN Note: Samples counted are composed of thirteen filters frrw . e. ch location composited each quarter.
37
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Charcoal Cartridge Potassium-40 Activity (E 2 pCi/ma3) by location PJtdsid Endkin AA1 AR1 AR1 AE.S AE1 AQS2 ALC AliS AGS 01/03/95 25.4 46.9 65.5 40.3 45 2 65.6 56.7 54.8 01/10/95 49 4 11.4 53 6 44 4 36 4 43 8 01/16/95 46 8 69.6 35.7 56.9 83.5 65.9 46.8 01/24/95 28 6 39.7 22.1 49 6 35.7 41.4 01/31/95 63.5 46.6 12 5 45 8 41.1 38.2 36 6 02/07/95 45.8 53.2 40.5 41.5 43.5 55 02/14/95 25 3 62.7 50.3 45.4 44.1 26.5 41.2 68.7 03/21/95 65.2 43.1 50.5 31.2 52 38.8 38 4 02/28/95 51.7 55.3 51.7 52.9 36 8 36 6 74.3 03/07/95 67.5 54 8 50.1 45.2 68 51.2 67.2 03/15/95 52.7 35.7 42.9 29 9 42.7 44.1 34 03/22/95 57.1 36.1 84.5 50.4 50.4 49.1 35.1 03/27/95 88.8 94.1 54 2 89.9 04/04/95 32.7 38.8 74.5 50.6 34.9 45.4
. 04/11/95 57.5 3&1 44 5 49.1 51.9 42.9 67.3 56.5 04/18/95 38.4 35.9 31.5 56.1 23.0 49 9 83.5 04/25/95 28.4 45.4 49 6 65.1 49.7 53 6 05/02/95 62.8 61.3 54.6 54 8 41.2 51.7 05/09/95 31.4 39.1 58.8 31.3 31.5 59.3 69.1 46 4 05/16/95 59 6 41.1 80.9 55.2 42.9 62.6 05/23/95 56 5 43.8 99.9 44.8 45.1 62.8 37.5 05/31/95 38.1 68.6 40.5 42.1 57.5 33.1 32.4 06,06/95 35.6 50.1 39.2 47.2 65.5 55.8 23.3
, 06/13/95 30.1 64.1 47.6 85.1 67.6 46.7 06/21/95 41.3 54.1 31.4 37.6 37.6 36.2 06/27/95 35.3 68 6 54.1 64.1 57.6 83.2 07/05/95 43.7 47.9 39.1 37.6 35.3 41.7 07/11/95 28.5 89 2 78 5 61.4 56.8 07/18/95 57.5 44.7 45.6 59.9 07/25/95 47.6 58 4 08/01/95 63.9 40.4 41.2 63.7 08/08/95 50.1 35 4 44.1 48.4 08/15/95 99.9 36.2 33.9 18 6 52.9 37.2 08/22/95 60.8 36 9 71.1 47.1 27.2 28.2 08/29/95 40 4 52.5 39.4 39.6 09/05/95 50.8 80.7 27.8 49.1 61.1 09/12/95 34.2 65.1 38.3 63.1 52.8 42.7 47.5 40 4 09/19/95 46.5 99 9 66.1 47.5 61.9 65.1 09/26/95 55.9 75.5 66.5 28.1 56.9 10/03/95 41.1 47.5 22.5 45.9 62.7 10/10/95 47 55.7 41.5 47 43 8 24.4 10/17/95 50 4 79.3 53.3 73.5 46.5 51.9 10/24/95 29 2 37.9 35 4 61 49 4 10/31/95 75 4 45.3 56 2 27.1 46 2 64 8 11/07/95 59.3 39 8 54.9 76 8 60.6 55.4 11/14/95 40 5 73 30.7 57.8 30 4 29.1 64.6 26.1 11/21/95 42.6 34.7 51.7 58 6 42.5 47.4 11/28/95 36.7 50.3 35.2 57.9 46 5 12/05/95 53 39 6 30.4 12/12/95 30 6 75.9 49 2 47 40 12/19/95 33 9 37.3 32.2 31.5 12/27/95 21.6 50.5 70 27.5 37.4 87.9 01/03/96 38 6 47.4 43 9 31.3 36.7 MAX 7t 4 99 9 99 9 89.2 75.9 85.1 83 5 74.3 89.9 AVG do 8 50 9 53 2 50 5 43.0 92 48.2 48 4 50 4 MIN 21.6 11.4 12 5 29 9 18 6 22.5 23 6 27.2 23 3 INDICATOR CONTROL MAX 99.9 89 9 AVG 49.0 49.0 MIN 11.4 23.3 38 f
l RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma-Emitting Nuclide Activity (pCi/kg wet)in Upstream Fish LLD's (pCilkg, wet)
COLLECTION 130 150 130 260 130 130 260 DATE- CS-134 CS-137 MN 54 FE-59 CO-58 CO-60 ZN-65 K-40 6/30/95 < 068.30 < 079.60 < 065.90 < 243.00 < 086.20 < 086.20 < 174.00 2708 6/30/95 < 064.80 < 058.80 < 072 80 < 239 00 < 040.80 < 117.00 < 151.00 6/30/95 < 064.10 < 076 40 < 074.90 < 229.00 < 086 40 < 130.00 < 153.00 3393 12/20/95 < 077.70 < 082.80 < 082.10 < 246.00 < 086.40 < 119.00 < 123.00 3298 12/20/95 < 085 40 < 105.00 < 110.00 < 247.00 < 076 40 < 081.20 < 189.00 12/20/95 < 087.00 t 094.10 < 065 40 < 211.00 < 092.80 < 118.00 < 142.00 2635 MAX < LLD < LLD < LLD < LLD < LLD < LLD < LLD 3393 AVG 3009 MIN 2635 Gamma-Emitting Nuclide Activity (pCilkg wet)in Downstream Fish COLLFOTION DATE CS-134 CS 137 MN-54 FE-59 CO-58 CO-60 ZN-65 K-40 6/30/95 < 071.60 < 084.70 < 083.10 < 240.00 < 057.10 < 091.40 < 207.00 2934 6/30/95 t 061.90 < 073.70 < 071.40 < 249.00 < 080 40 < 068.40 < 098.10 3633 6/30/95 < 08310 < 087.70 < 110.00 < 245 00 < 097.70 < 126 00 < 192.00 2066 12/20/95 < 065 60 < 070 80 < 095.00 < 241.00 < 091.90 < 119.00 < 208 00 703 12/20/95 < 084.30 < 090.70 < 089.00 < 243.00 < 078.10 < 114.00 < 161.00 12/20/95 < 079.70 - < 104 Ou < 106 00 < 066 60 < 116.00 < 122.00 < 247.00 MAX < LLD < LLD < LLD < LLD < LLD < LLD < LLD 3633 AVG 2334 MIN 703 Gamma-Emitting Nuclide Activity (pCl/kg dry)in Shoreline Sediment LLD's (pCilkg): Cs-134=150; Cs 137=180 COLLECTION UPSTREAM DOWNSTREAM DATE LS-134 CS 137 K-40 CS 134 CS-137 K 40 6r55: < 019.60 < 021.90 5591 0 < 026 60 < 039 90 1332 12/28/95 < 029.80 < 037.50 1427.0 < 026.70 < 042.90 1254 MAX < LLD < LLD 5591 < LLD < LLD 1332 AVG' 3509 1293 MIN 1427 1254 I
I 39
l I RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 i
I Gamma-Emitting Nuclide Activity (pCl/kg, wet)in Broadleaf Vegation
{
Site Garden #1 (Indicator)
LLD's (pCi/kg, wet) i COLLECTION 60 80 60 DATE CS 134 CS-137 l131 BE-7 K-40 1/11/95 < 41.0 < 39 0 < 50.0 1 1/11/95 < 49.0 < 36 0 < 45.0 1/11/95 < 24.0 < 24.0 < 35.0
, 2/13/95 < 49.0 < 43.0 < 36 0 e
2/13/95 < 21.0 < 23.0 < 210 2/13/95 < 24.0 < 24.0 < 23.0 i
3/20/95 < 32.0 < 29.0 < 28.0 3/20/95 < 38 0 < 39 0 < 35.0 3/20/95 < 47.0 < 39 0 < 44 0 4/24/95 < 49 0 < 45 0 < 44.0 4/24/95 < 26.0 17 0 < 24.0 4/24/95 < 28.0 < 26 0 < 30.0 l
5/30/95 < 20.0 < 20 0 < 18 0 1 5/30/95 < 20.0 < 15 0 < 17 0 )
5/30/95 < 31.0 < 26.0 < 26 0 6/30/95 < 27.3 < 38.6 < 43.3 327 2973 6/30/95 < 27.7 < 26.7 < 32.1 3401 6/30/95 < 46.6 < 40 4 < 45.3 2785 7/27/95 < 20.8 < 47.7 < 35.7 915 5095 7/27/95 < 36.9 < 49.1 < d3.0 6332 7/28/95 < 47.0 < 45 9 < 3E O 408 4843 8/31/95 < 32.1 < 39,6 < 57.9 3556 4753 8/31/95 < 22.4 < 37.0 < 56.1 4821 3/31/95 < 31.1 < 32 5 < 56.9 268 5173 9/30/95 < 35.5 < 40.7 < 43.2 4158 9/30/95 < 29 3 < 40 2 < 43 2 3378 9/30/95 < 34.3 < 38.9 < 41.0 4742 10/21/95 < 36.3 < 42.9 < 46 7 4428 10/31/95 < 28.2 < 37.2 < 381 4171 10/31/95 < 27.2 < 26.6 < 37.7 3152 11/30/95 < 17.0 < 29 9 < 42.1 466 5606 11/30/95 < 26 6 < 40.1 < 46.5 2719 11/30/95 < 17.5 < 26.3 < 26.3 251 4597 12/28/95 < 31.8 < 43.7 < 43 0 724 3924 12/28/95 < 42.2 < 38.3 < 58 6 712 5597 MAX < LLD 17 0 < LLD 3556 6332 AVG 17 0 847 4332 MIN 17.0 251 2719 NOTE. Activities of Be-7 and K-40 were not available for January through May 40
I I RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma Emitting Nuclide Activity (pCilkg wet)in Broadleaf Vegation Site Garden #2 (Indicator) l LLD's (pCi/kg, wet)
COLLECTION 60 80 60 DAT" CS-134 CS 137 l-131 BE-7 K 40 l DATE i 1/11/95 < 31.0 < 23 0 < 37.0 1/11/95 < 56.0 < 44 0 < 57.0 1/11/95 < 39.0 < 36 0 < 44 0 2/13/95 < 47.0 < 38 0 < 42.0 2/13/95 < 45.0 < 43 0 < 44 0 2/13/95 < 34.0 < 31.0 < 34 0 1 3/20/95 < 28.0 < 25 0 < 23.0 I 3/20/95 < 24.0 < 22 0 < 24 0 3/20/95 < 35.0 < 32.0 < 39.0 4G4SS < 40 0 < 35 0 < 31.0 ,
4/24/95 < 23 0 < 20.0 < 18 0 l 5/30/95 < 14 0 < 11.0 < 13.0 l 5/30/95 < 42.0 < 40 0 < 45 0 5/30/95 < 22.0 < 20.0 < 21.0 6/30/95 < 39.3 < 32.5 < 44.1 360 6032 6/30/95 < 42.0 < 53.1 < 56 4 4166 6/30/95 < 40.6 < 38.6 < 38.9 3396 7/27/95 < 37.0 < 43.2 < 41.5 394- 7258 7/27/95 < 31.8 < 48.1 < 46 4 7647 7/28/95 < 32.0 < 53 8 < 44 8 461 5545 8/31/95 < 27.2 < 39 0 < 39.2 5169 I 8/31/95 < 27.0 < 24.2 < 53.5 2018 7281 8/31/95 < 25.1 < 27.2 < 48.9 247 4647 i 9/30/95 < 44.2 < 40.3 < 55.0 4943 9/30/95 < 31.9 < 37.2 < 50.1 4863 l
l 9/30/95 < 42.3 < 40 9 < 54 8 386 6958 1 l 10/31/95 < 37.9 < 36 6 < 51.6 291 4802 l
{ 10/31/95 < 32.9 < 47.0 < 47.8 3128 l' 10/31/95 < 56.7 < 46 2 < 59.9 2335 4066 l 11/30/95 < 49.0 < 35 0 < 58.1 3336 ;
l 11/30/95 < 55.7 < 62.9 < 57.3 827 4610 l 11/30/95 < 47.3 < 44.3 < 58 2 753 6466 MAX < LLD < LLD < LLD 2335 7647 AVG 807 5240 MIN 247 3128 NOTE: Activities of Be-7 and K-40 were not available for January through May.
4 4
9
- 41 i
i E
RIVER BEND STATION l
RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 i
l Gamma-Emitting Nuclide Activity (pCl/kg wet)in Broadleaf Vegation l Angola Location (control)
LLD's (pCl/kg, wet)
COLLECTION 60 80 60 DATE CS 134 CS 137 l-131 BE-7 K-40 l
1/9/95 < 40.0 < 37.0 < 59 0 1/9/93 < 32.0 < 25.0 < 40 0 i
1/9/95 < 46.0 < 32.0 < 58 0 l 2/13/95 < 22.0 < 26 0 < 21.0 l
2/13/95 < 21.0 < 20 0 < 17 0 2/13/95 < 17.0 < 17.0 < 16.0 3/17/95 < 30.0 < 33.0 < 35.0 3/17/95 < 32.0 < 28 0 < 41.0 3/17/95 < 24.0 < 21.0 < 32.0 4/5/95 < 12.0 < 09.0 < 19.0 4/5/95 < 16.0 < 15.0 < 27.0 l 4/5/95 < 14.0 < 11.0 < 20.0 5/30/95 < 25.0 < 26.0 < 21.0 5/30/95 < 31.0 24.0 < 25.0 5/30/95 < 15.0 11.0 < 12.0 6/27/95 < 37.2 < 33.5 < 40.2 4466 6/27/95 < 55.3 < 48 4 < 43.3 8638 6/27/95 < 53.0 < 47.3 < 35.5 264 4346 7/10/95 < 39.5 < 32.0 < 36.1 915 5331 7/10/95 < 28.9 < 51.0 < 37.9 904 4262 7/10/95 < 33.6 < 41.8 < 40.7 430 3356 8/28/95 < 16.7 < 24.1 < 59 4 333 4391 8/28/95 < 32.6 < 28.8 < 59 8 6432 )
8/28/95 < 22.4 < 22.4 < 53.4 629 4345 9/28/95 < 58.6 < 53 9 < 58 8 793 6001 9/28/95 < 30.0 <178 < 37.7 3552 9/28/95 < 21.8 < 44 2 < 50.9 4283
- 10/12/95 < 34.7 < 41.2 <509 4115 l
10/12/95 < 44.7 < 45 6 < 89.3 480 4444 l 10/12/95 < 26 4 < 30.5 < 58 6 2600 l 11/29/95 < 26 0 < 25.3 < 38.1 263 1607 11/29/95 < 31.2 < 25 2 < 39 4 2397 11/29/95 < 21.4 < 27.2 < 49.9 1566 12/19/95 < 17.9 < 21.9 < 54 0 1685 12/19/95 < 16.7 < 19.7 < 59 7 211 4605 12/19/95 < 17.9 < 26.1 < 59 2 559 6997 MAX < LLD 24.0 < LLD 915 8638 l AVG 17.5 526 4258
- f. MIN 11.0 211 1566 NOTE: Actnntes of Be-7 and X-40 were not available for January through May.
42 i
i RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l
APPENDIX B l 1
l l
Summarv of Precoerational REMP (Baseline) Results !
i l
1 Table B.1 summarizes the results of preoperational radiological environmental monitoring from January,1983, through l l October,1985. Further details are available in the respective annual reports (1983,1984, and 1985).
i 1
l I l
l l
l l
l 43
I i l l 1
t RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l
TABLE B.1 PREOPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 1 of 4)
River Bend Station Docket Number: 50-458 West Feliciana Parish, Louisiana Reporting Period 1/1/83 to 10/31/85 Medium or Type and Total Lower Limit All Indicator Location with Highest Control Number of P;thway Sampled Number of of Detection' Stations Mean (f)' Annual Mean Locations Mean Analyses Nonroutine (Unit of Measure) (LLD) Range (f): Reported Performed Range Results i
Name Mean (f)2
' Distance / Direction Range I
. 4 .. ... .
Air Particylate Gross Beta 0 01 0 03(752/759) AOS2 0 03(146/158) N/A (pCilm ) 0 03(326/327)
(1086) 001 009 5 8 km NW 001-009 001-008 I
Cs-134 0 05 I All < LLD ! All < LLD N/A i l (95) l l
. . )
p Cs.137 0.16 All < LLD -
All < LLD N/A I-131 0 07 All < LLD All < LLD N/A Air (pCi Radiop)ine m (1086) s a . , a l
\
Direct (TLD)* Gamma Monthly 6 8(1018/1064)
TM2 7 8(27/28) N/A (mR total)07-193 4 2 km WSW 6 7(139/150) 0 27.8
)
(1214) 4 l 32-162 t... .. 4 ..
l' Gamma ouarterty l 19 0'(404/418) TG1 8 27 5 (11/11) 18 9'(51/54) N/A (472) } 68 32.1 16 km SE 12.2 276 65-235 1
l Surface Water H.3 2000 All < LLD All < LLD N/A l (pCn/l ter) (24)
. . . , l Mn-54 15 All < LLD All < LLD N/A (68)
. 4 Co-58 15 All < LLD All < LLD N/A (68)
. . e p.- . . . .
Fe.59 30 l All < LLD !
All < LLD N/A (68) l l .- 4 .!. .... ..
l Co-60 15 All < LLD All < LLD N/A (68)
Zrh65 30 All < LLD N/A l (68)
. . . l Nb r ' 15 All < LLO N.'A (68) 4 .- 6 4...
t Zr-95 30 All < LLD All < LLD N/A l (68) l . . . 4 l-131 15 All < LLD All < LLO N/A (68) 9 Cs-134 15 All < LLD ! All < LLD N/A l (68) l l j j .... .... ;-
18 ALL=LLD N 'A (68)
Ba-140 60 All < LLD l ALL < LLD N/A l (68) !
4- . .i 4... ..
I
, La.140 15 A!! < LLO All < LLD N/A (68)
Gross Beta 4 j 8.1 (23/26) ! SWD 8 1(23/26) 7 8 (24/26) N/A (52) ; 4-12 4 km downstream 4-12 5 13 3
.1 44 1
i
1 1
i RIVER BEND STATION I s
RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 )
TABLE B.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 2 of 4)
River Bend Station Docket Number: 50-458 West FeliCiana Parish, Louisiana Reporting Period 1/1/83 to 10/31/85 Medium or Type and Total Lower Limit All Indicator Location with Highest Control Locations Number of Pathway Sampled Number of of Stations Mean (f)' Annual Mean Mean (f)' Nonroutine (Unit of Measure) Analyses Detection' Range Range Reported Performed (LLD) Results Name Mean (f):
Distance / Direction Range
. g....... .-- .
r' '- +
Groundwater
All < LLD N/A (pCuliter) (24) l Mn-54 15 All < LLD All < LLD N/A (22)
Co-58 15 All < LLD All < LLO N/A (22)
Fe-59 30 All < LLD All < LLD N/A (22)
Co-60 15 All < LLD All < LLD N/A (22)
. .. .y.. g Zn-65 30 All < LLD j All < LLD t N/A (22) ! !
Nb-95 15 All < LLD All < LLD NiA (22)
Zr 95 l 30 All < LLD All < LLD N!A l l (22) i
.i . i ...
1-131 15 All < LLD All < LLD N/A I (22) l Cs-134 15 All < LLO All < LLD N/A I (22) I
\
Cs-137 18 All < LLD All < LLD N/A l (22)
- p. . .
Ba-140 l 60 All < LLD All < LLD N/A (22) i L
La-140 15 All < LLD All < LLD N/A (22) l i
Gross Beta 4 4(5/12) WD 4(5/12) 6 (2/3) N/A (15) l 28 470 m SW 28 39 )
l Dnnking Water' H-3 2000 All < LLD All < LLD N/A (pCvliter) (18)
. t . .
Mn-54 15 I All < LLO All < LLO N/A (40) !
- t. . .; .... .._
Co 58 15 All < LLD All < LLD NJA (40) f Fe 59 30 All < LLD l All < LLD N/A (40) l Co-60 15 All c LLD A!I < LLD N/A (40)
Nb-95 15 All < LLD All < LLD N/A l
l (40) I f
i i
f 45 l
i
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l
TABLE B.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
l (Page 3 of 4)
River Bend Station Docket Number: 50-458 West Feliciana Parish, Louisiana Reporting Period 1/1/83 to 10/31/85 Mer* lum or Type and Total Lower Limit All Indicator Location with Highest Control Locations Number of l Pathway Sampled Number of of Stations Mean (f): Annual Mean Nonroutinc Mean (f)'
(Unit of Measure) Analyses Detection' Range Range Reported Performed (LLD) Results
! Name Mean (f)' s j i Distance / Direction Range '
Zr-95 30 All < LLD All < LLD N/A (40) 1-131 15 All < LLD All < LLD N/A (40)
Cs-134 15 All < LLD All < LLD N/A I (40) I j
Cs-137 18 Ali c LLD All c LLD N/A l (40)
Ba.140 60 All < LLD All < LLD N/A (40) 9... .. 9 . .....
La.140 i 15 All < LLD All < LLD N/A (40) l Gross Beta 4 6 8(28/28) Donaldsonville 7 8(24/26) N/A l ;
6 8 (28/28) i (54) ; 3 12 138 km downstream 3 12 5-13 i
l Shorehne Sedirnent' K-40' Nor,e 13700(2/2) SED 13700 (2/2) Not N/A l (pCilkg dry) (2) Required 11400 15900 4 km downstream 11400 15900 Requued j i
Cs-134 150 ,Sil < LLD N-A (4)
Cs-137 180 All < LLD All < LLD ! N/A (4) : ,
... ... 4... ....
Milk K.40' None ! 1313(8/9) MF2 1313(8/9) 1318(7/9) N,A (pCuliter) (18) Required ; 1170-1475 6 km ESE 1179 -1475 1196 1409
! l-131 1 All < LLD ! All < LLD' N/A j (81) ,
, Cs-134 15 j All < LLD f All < LLD' N/A I i
(82) i :
.i...
9... 9 ]
Cs.137 j ;B M < LLD All < LLD N/A I (82) l Ba.140 60 All < LLD All < LLD' N!A (82)
La-140 15 All < LLD All < LLD N/A l (82) ,
- t" t-Fish / invertebrates K-4 0' None 9037 (2/2) j FD 9037(2/2) 7840(4:4) N/A (pCvkg wet) (6) Required ' 4 km downstream 6320 -11754 4177-11438 Mn-54 130 ,
(15)
Co.58 130 All < LLD j All < LLD N/A (15) !
.i .. . . . . . . .
Fe-59 i 260 All < LLD* i i All < LLD' N/A i
(15) l ,.'
46
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE B.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 4 of 4)
River Bend Station Docket Number: 50-458 West Feliciana Parish, Louisiana Reporting Period 1/1/83 to 10/31/85 Medium or Type and Total Lower All indicator Location with Highest Control Locations Number of Pithway Sampled Number of Limit of Stations Mean (f)' Annual Mean Mean (f)3 Nonroutine (Unit of Measure) Analyses Detection' Range Range Reported Performed (LLD) Results Name Mean (f)'
Distance / Direction Range
..., ..a .... .4 Fish / invertebrates Zn-65 260 All < LLD All < LLD N/A (pCi/kg wet) (15)
(ccntinued)
Cs-137 160 All 4 LLD All < LLD N/A (15)
Vegetation K-40' None 3368(6/10) .
G2 3368(6/10) : 3768 N/A (pCi/kg wet) (11) Requred 1398 5389 l 13 km NW 1398 5389 !. . - sing le value 1-131 60 All
l Cs-134 60 : All < LLO j All c LLD N/A (76) l ;
- d l
NOTES:
! (1) Lower Limit of Detection (LLD) as defined in RBS Technical Specifications (NUREG-1172).
(2) Mean and range based on detectable measurements only. The fraction of detectable measurements at specified locations is indicated in parentheses (f)
(3) For each of the TLD locations in 1985, a value equal to one-third of its 4th Quarter gamma exposure is used to simulate a "quarterty" measurement for October,1985-(4) Beginning in January,1085, groundwater was sampled from one upgradient (Wl> - control) and one downgradient (WD - indicator) well; previously, groundwater was sampit d from construction dewatenng (well-point) wells (5) The upstream surface water sampling location (SWU) is used as a " control" for dnnking water compansons.
(6) The values listed for K-40 were denved from the incipient in-house analytical program (7) The values listed for the control location for milk were denved from the incipient in-house anatytical program. Training of personnel in calibration and analytical methods delayed sample preparation and counting As a result. the required LLDs were not met (by the in-house analytical program dunng this training penod)in 2 out of 8 l-131 analyses; 1 out of 9 Cs.134 analyses.1 out of 9 of Cs-137 analyses. 2 out of 9 Ba-140 anafyses. and 4 out of 9 La-140 ana'yses Similarly, the required LLD for 1-131 in broadieaf vegetation was not met in 1 out of 11 analyses (See discussion of Program Exceptions in the Preoperational Radiological Environmental Monitonng Report for 1985 )
(8) The LLD for one downstream fish sample (catfish. analyzed in-house) was 265 pCi/kg (wet). The LLD for one upstream fish sample (largemouth bass, analyzed iruhouse) was 263 pCi/kg (wet) 47
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