RBG-43185, Radiological Environ Operating Rept (Amended) River Bend Station Jan-Dec 1995
| ML20117J958 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 12/31/1995 |
| From: | King R, Odell W, Reed M ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| RBF1-96-0307, RBF1-96-307, RBG-43185, NUDOCS 9609110057 | |
| Download: ML20117J958 (54) | |
Text
Entirgy operations, Inc.
River Bend Stahon 5485 U S Highway 61
.* - " P.O. Box 220 St. Francisvitie LA 70775 Tel 504 336 6225 Fax 504 635 5068 Rick J. King Director Nuclear Safety & Regulatory Affairs August 28,1996 U.S. Nuclear Regulatory Commission Document Control Desk Mail Stop PI-37 Washington, DC 20555-0001
Subject:
Amended Radiological Environmental Operating Report for 1995 River Bend Station - Unit I License No. NPF-47 Docket No. 50-458 File Nos.: G9.5, G10.6 RBG-43185 RBFI-96-0307 Gentlemen:
The 1995 River Bend Station (RBS) Annual Radiological Environmental Operating Report was submitted on April 25,1996, per RBG-42851. Enclosed is an amended report. Table
'3a' was inadvertently omitted and has been added on page 15, minor changes have been made in the Abstract on page 'i' and a correction has been made in the third paragraph on page 12 of the report. This amended report is submitted in accordance with the RBS Technical Specifications, Section 5.6.2. Data used to develop the Annual Radiological Environmental Operating 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 t
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Amended Radiological Environmental Operating Report for 1995 August 28,1996 l RBG-43185 RBFI-96-0307 Page 2 of 2 l
1 t cc: U.S. Nuclear Regulatory Commission l l Region IV 611 Ryan Plaza Drive, Suite 400 l Arlington, TX 76011 i NRC Resident Inspector PO Box 1050 l St. Francisville, LA 70775 l Mr. David L. Wigginton U.S. Nuclear Regulatory Commission M/S OWFN 13-H-15 Washington, DC 20555 l
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FOR THE OPERATING PERIOD January 1,1995- December 31,1995 l
Compiled by:
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Specialist - Environmental, Sr.
Reviewed by:
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w William H. Odell Jerom nM, Superintendent - Radiation Control perintendent - Chemistry I
l Approved by:
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Joel P. Dimmette General anager - Plant Operations l
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l RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Abstract 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 control limits. 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 (relative to baseline data) levels of Cesium-137 were sporadically measured in both indicator and control I media; these concentrations were presumably attributable to the 1$86 incident at Chemobyl, 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 measured in the liquid discharge were slightly above required levels of detection, but well below Technical Specification /TRM reporting levels. The 1995 Fsadiological 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 d
l TABLE OF CONTENTS Paae i
1.0 INTRODUCTION
.. . .... . . . . . . . . . . . . .................1 !
2.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM .. . . . . . .1
- 2.1 Purpose / Bases.. .. . .. . . .. . . . . . . . . . . . . . . . . . . . . . . .. ... .. .1 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 . . .. . . .. . . . . . . . .. . . . . . . . . 17
. 3.1 Summary of Operational REMP Results.. . . .. . . . . . . . . . . . . . . . . .. . . . 17 3.2 Comparison of Operational and Baseline REMP Results.... . . . .... .. .. ... . 22 3.3 Comparison of REMP Results with Operational Controls. .. ..... .. . . 23 APPENDICES A. Listings of 1995 REMP Results B. Summary of Preoperational REMP (Baseline) Results i
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 LIST OF FIGURES Paae Figure 1. Far-field Radiological Environmental Monitoring Locations ... .. . .....2 Figure 2. Near-field Radiological Environmental Monitoring Locations. .... . ... . 3 LIST OF TABLES Paae Table 1. Radiological Environmental Monitoring Program. .... . . .6 Table 2. Results of Land Use Census .. . . . . . . . . . . . . . . . . . .. ............13 l
Table 3. USEPA Interlaboratory (Cross-check) Program Participation Results for 1995..... ..... . . . .. . . ..........................14 Table 4. Moriitoring Program Exceptions in 1995.... . . . . . . . . . . . . . . . 16 Table 5. Radiological Environmental Monitoring Program Summary. . .. . . . ..18 Table 6. Summary Comparison of L; quid Effluent Quantities / Concentrations and REMP Discharge Line Me titoring Results. .. .. .. .. . . . . 24 ;
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995
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 m:chanical draft cooling towers which draw makeup water from the Mississippi River,3.3 (air) km to the west. Blowdown from the cooling tower system dilutes low-level liquid radioactive waste and is discharged to the Mississippi River through a 4.4-km buried pipe 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.
Th3 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 area is dsvoted, 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).
The 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 urban / improved lands are relatively more extensive (at the expense of forested lands) in the southwestem and southeastem 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.
2.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP) 2.1 Purpose / Bases Th3 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 those l radionuclides that lead to the highest potential exposures of members of the public.
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPEPATING REPORT FOR 1995 The REMP implementsSection IV.B.2 of Appendix l 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 i 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 Radiological Branch Technical Position, Revision 1, November 1979, as well as NRC Regulatory Guides 4.1 and 4.15.
2.2 Environmental Radiation Exposure 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:
l HUMAN EXPOSURE PATHWAYS -
(A) Airborne Pathway Monitorina Media Inhalation Dose (intemal) Air Samples (Particulates and Radioiodines)
Ground Plane Dose (extemal) Thermoluminescence Dosimetry (TLD)
Immersion Dose (external) Thermoluminescence Dosimetry (TLD)
Ingestion Dose (intemal) Vegetation / Food Crop Samples (B) Direct Exposure Pathway Monitorina Media l
External Dose Thermoluminescence Dosimetry (TLD)
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(C) Waterborne Pathway Monitorina Media ingestion Dose (intemal) Surface Water Samples Groundwater Samples Drinking Water Samples i Fish / Invertebrate Samples l 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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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 2.
2.3 Land Use Census for 1995 The annual land use census, which implementsSection IV.B.3 of Appendix l 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 id:ntified 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 Q (NNW) was 1.4 km, compared to 1.3 km in 1994. The gardens identified in sectors P (WNW) and Q (NW) are the onsite gardens established near sectors with the highest calculated annual average ground level 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 the 1995 census.
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 id:ntified 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.
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2.4 Interlaboratory Comparison Procram Results for 1995 The RBS REMP Laboratory participated in the U.S. Environmental Protection Agency (USEPA) Performance Evaluation I 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 j analyses, and within the USEPA "known" value (accuracy) for all but one analysis. The discrepancy for this analysis is i discussed below. The USEPA discontinued the cross-check media for " food" in 1989, and although milk sampling and i analysis is not required of RBS at this time, the results for the cross-check media for " milk" are included as a gauge for I the " food" sample analyses (i.e., vegetation and fish) performed by RBS.
2.5 Proaram Exceptions h
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 Sarnple 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:
collection 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; 0.8 km NNW. frequent.
AP1 Near River Bend Station Onsite Garden #1; ana kly for gross beta AQS2. St. Francis Substation on U.S. Hwy. (Bus.) I 61 in St. Francisville; 5.8 km NW (nearest Composite particulate filters: 1 commundy location). analysis quarterty for gamma ,
isotopic activity. I l
CONTROL AND SPECIAL INTEREST STATIONS' ALC. Partange Power Center in Oscar; 20 km '
SW (Control). j AB1. River Bend Station cooling tower yard; 0.5 km NNE.8 )
j AKS. River Bend Station River Access Road; 2.8 km SSW.*
AGS. GSU Service Center compound in Zachary; 17 km SE.8 AHS. Roof of GSU Office Building, North Blvd.,
Baton Rouge; 40 km SSE.8 i
Direct Radiation Measurements from 44 locations:
INDICATOR STATIONS TA1. River Bend Training Center; 1.7 km N. Thermoluminescence dosimeters Gamma exposure quarterly.'
(TLDs); deployment / retrieval 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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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RADIOLOGICAL 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 Direct Radiation TC1. Stub pole at Jct. of US Hwy 61 and Old Thermoluminescence dosimeters Gamma exposure quarterty.'
(continued) Highway 61; 1.7 km NE. (TLDs); eployment / retrieval quarterly 1 TC2. Pub pole along La Hwy 966,0.6 km south 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.
TD2. Stub pole along La. Hwy. 966,4 km south of Jct. of La Hwys. 966 and 965; 6.3 km ENE. l 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 i north of Jct. of La. Hwys. 68 and 964; 10 km E.
)
TF1. Stub pole along WF 7,1.6 km south of Jct. I of WF 7 and U.S. Hwy. 61; 1.3 km ESE.
l TF2. On La. Hwy. 954,0.6 km north of Jct. of La. l 954 and U.S. Hwy. 61; 6 km ESE.
TG1. Stub pole along WF 7,2 km south of Jct. of WF 7 and U.S. Hwy. 61; 1.6 km SE.
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 pole on La Hwy 964 north of j the entrance to Crown Vantage Paper Plant; 5.5 l
km SSE.
l TJ1. Stub pole near River Bend Station gate #23 on La. Hwy. 965; 1.5 km S.
TJ2. Large tree along River Road,100 meters north of Crown Vantage Paper Plant intake structure; 5.8 km S.
TK1. GSU utility pole #L10178 on La. Hwy. 965, 20 meters south of RBS River Access Road; 0.9 km SSW.
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 Description, Sampling and Type and Frequency of and/or Sample Distance, and Direction Collection Frequency Analysis Direct Radiaton TL1. Second utility pole on La. Hwy. 965 south of Thermoluminescence dosimeters Gamma exposure quarterly.'
(continued) former Illinois Central Gulf Railroad crossing; 1.0 (TLDs); deployment / retrieval
, km SW. quarterty 1
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 lilinois 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; 0.9 km W.
TN2. Utility pole with electrical 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, westem outskirts of St. Francisville; 7.3 km WNW.
TQ1. GSU property sign along La. Hwy 965 about i km north of RBS North Access Road; 1.4 km NW.
TQ2. GSU pole at Jct of North Commerce and Amencan Beauty Streets, St Francisville; 6.9 km NW.
TR1. RBS North Access Road across from plant entrance; 0.8 km NNW.
TR2. Tree along north side of WF 2, past Jacock Road, about 1.8 km east of Jct. 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.
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RADIOLOGICAL 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 Midway Thermoluminescence dosimeters Gamma exposure quarterfy?
(continued) Road,4.8 km north of Jct. of La. Hwys. 955 and (TLDs); deployment / retrieval 964; 16 km E.8 quarterty TLC. Partange Power Center in Oscar; 20 km j SW.
TCS. Utility pole at gate to East Louisiana State Hospitalin Jackson; 12.3 km NE.
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TGS. GSU Service Center compound in Zachary; l 17 km SE.
l THS. Roof of GSU Office Building, North Boulevard, Baton Rouge; 40 km SSE.
l TKS. RBS River Access Road; 2.8 km SSW.' l TLS. Utility pole near False River Academy sign at edge of New Roads; 9.9 km SW.
TQSt. Behind Pentecostal Church (opposite West Feliciana Hospital) near Jct..of U.S. Hwy. 61 and i 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 N NW.'
Waterbome SURFACE WATER' SWU. Mississippi River about 4 km upstream from Weekly grabs, composited over Monthly composite: gamma the RBS liquid discharge, near La. Hwy.10 ferry monthly and quarterly periods. Isotopic, tritium
- and gross l crossing. beta analysis'.
Quartertycomposite: tritium anatysis.
SWD. Mississippi River about 4 km downstream from the RBS liquid discharge, near the Crown Vantage Paper Plant.
DL RBS liquid discharge line at the blowdown Flow-weighted hourty grabs, control structure along the River Access Road. composited monthly and quarterfy.
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RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 ,
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TABLE 1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (Page 5 of 6) l Exposure Pathway Sample Point Description, Sampling and Type and Frequency of and/or Sample Distance, and Direction Collection Frequency Analysis
- Waterborne DRINKING WATER
- Nearest downstream water supply: Weekly grabs, composited over Monthly compopite: gamma i
lH-10 bridge in Baton Rouge,53.9 km downstream monthfy and quarterly periods. isotopic, tritiup and gross from the RBS liquid discharge; or People's Water beta analysis .
Service Company in Donaldsonville, 138 km Quarterly composite: tritium downstream from the RBS liquid discharge. analysis.
GROUNDWATER i WD. Upland Terrace Aquifer well, downgradient Quarter!y grab. GrossLAa gammalsotopic, d from the plant, about 470 meters SW. and tntium analyses ,
j quarterly". '
I WU. Upland Terrace Aquifer well, upgradient from
, the plant, about 470 meters NNE (control).
1 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 Ingestion FISH AND INVERTEBRATES FD. One sample of each of three commercially Semiannually or seasonally, when Gamma isotopic analysis on and/or recreationally important species from the available. edible portons semiannually downstrealp 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 PRODUCE8 G1/G2. Two samples of each of three different Monthly during the growing season. Gamma isotopic and 1-131 types of leafy vegetables from onsite gardens near analyses monthly. ,
tne site boundary in areas of highest calculated average ground-level D/Q; 1 km WNW and 1.1 km ]
l NW. 3 1
GQC. One sample of each of three different kinds of leafy vegetables from the Louisiana State Penttentiary at Angola; 35 km NW (control).
1 1
1 10
RIVER BEND STATION
. RADIOLOGIC / . ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (Page 6 of 6)
NOTES:
(1) Foi purposes of data summary, comparisons, and discussion, the sampling locations designated as "Specini Interest" are treated as indicator stations if they are within 16 km of RBS and control stations if they are beyond 16 km.
(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.
(5) Gross beta analysis not required by RBS Technical Specifications and ODCM.
(6) Drinking 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 orunniens); if these are unavailable, other edible species may be substituted.
(8) No irrigation pathway exists due to the extreme distance of nearest domestic water intake (see Note 6); leafy vegetables are sampled and analyzed because of limited availability of milk samples.
11
RIVER BEND STATION
- . RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 1
- Air Particulates and Radiciodines Twenty-three program exceptions, with loss of sample / sample volume, occurred involving air particulate and radiciodine sampling. Fifteen of these involved non-technical specification /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 sarr.ple 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. ;
- 1 1 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 4
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 to 5/23/95. Even though this activity was less than ten times the yearly control sample mean for the previous l year (as required by the TRM); it was analyzed by gamma isotopic, and peaks of Co-60 and Mn-54 were quantified. The l second quarter AP1 filter composite gamma analysis quantified Mn-54 at 0.005 pCi/m^3, and Co-60 at 0.013 pCl/m^3. ,
The third quarter AP1 filter composite analysis quantified Co-60 at 0.018 pCi/m^3. Fourth quarter AP1 filter composite j quantified only natural nuclides. Indiv! dual AP1 weekly filters analyzed from 10/24/95 revealed only background i radiation. Comparison of the second and third quarter results against the RBS 1.21 report for 1995 show a positive agreement between the isotopes in question. Examination of the dose at 994m for the child thyroid (critical organ) indicated there was no increase in this parameter due to the Co-60 and Mn-54. As this is the limiting factor, there was thus no negative environmental impact as a result of these isotopes.
Direct Radiation (TLD)
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 over five parishes.
Water Samole DischarDe 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
RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l TABLE 2 i
RESULTS OF LAND USE CENSUS S ctor Nearest Range Nearest Range Nearest Range Nearest Range Residence (km) Garden (km) Dairy (km) Meat Animal (km) l l A (N) Jones 1.8 Jones 1.8 - - Daniel, H. 3.0 l
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
, E (E) Bickham, 2.2 - - Daniel, E. 1.2 S
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 H (SSE) Koffman 1.7 Koffman 1.7 - - Daniel, E. 3.9 J (S) Bliss 1.8 Bliss 1.8 - Daniel, E. 3.5 K (SSW) Guillory 7.4 Guillory 7.4 - - Daniel, E. 3.5 L (SW) - - - - - - Bergeron 4.6 M (WSW) - - - - - - Langois 5.0 N (W) Lacost 6.1 - - - - Langois 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 d
l 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.
l 13 I
l l
RIVER BEND STATION '
e RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 i
, TABLE 3 USEPA INTERCOMPARISON (CROSS-CHECK) PROGRAM PARTICIPATION RESULTS l Sample Type Date Analysis USEPA RBS RBS RBS Averaap (unitsf "Known" Value' Value N-DEV" N-RANGE
- Resull 08/25/95 Beta 86.6 i 17.3 98.0 +2.00 0.473 87.4
- 8.81 grFgrg i Alpha 25.0110.9 30.0 +1.40 0.375 26.713.98 l i } ,
Cs-137 25.0 i 8.7 22.0 j -1.00 0.35/ ,
26.8 i 3.88 Milk' 09/29/95 l-131 99.0117.3 l 100.0 l +0.20 0 413 l 101.2 i 7.25 '
Cs-137 50.0 i 8.7 50.3 } +0.10 0.118~i~ 51.012.87 .
2 l
- K (nat) 1654.0 i 143.8 1746.0 +1.90 0.171 1b65.5 i 119.4 i gtgr 01/27/95 Beta 5.016.9 8.0 + 1.04 0.236 6.62 i 1.93 02/03/95 i-131 100.0 i 17.3 95.0 -0.87 f 0.177 98.53 i 5.59 !
j 03/10/95 -1.83 0.074 7299.2 i 682.97
[H-3 f 7435.0i1290.5 f 6649.3 f l 04/18/95 Beta 86.6 i 17.3 41.0' -7.90' l 0.473 86.93 i 10.42
- Co-60 29.018.7 28.7 -0.12 0.118 29.39 i 2.24 3 f Cs-134 1
20.0 t 8.7 [. 17.3 }. -0.92 0.354 18.33 1 2.38 Cs-137 l 11.0 i 8.7 l 11.3 l 0.12 l 0.118 11.78 i 1.68 06/09/958 Co-60
( 40.018.7 38.3 -0.58 0.118 39.712.52 Zn-65 76.0 i 13.9 75.7 -0.06 0.369 78.8 i 5.52 Ba-133 79.0 i 13.9 76.0 }' -0.65 0.148 76.2 i 5.46 Cs-134 50.0 1 8.7 42.7 -2.53 0.709 45.613.99 ,
Cs-137 35.0 t 8.7 35.3 0.10 0.118 35.5 i 2.90
~ }
07/21/95 Beta f 19.4 i 8.7 14.0 -1.87 0.354 21.67 i 3.88 08/04/95 H-3 } 4872.0 1 844.9 4540.0 -1.18 0.243 4788.09 i 844.9 f
10/06/95 148.0 1 26 1 0.70 0.276 152.9 i 10.71
- f. I-131 f.
. 154.3 .J. . l.
1 10/17/95 Beta 123.5 i 32.0 -1.54 0.958 107.0 l 124.0 1 14.6 Co-60 49.0 i 8.7 49.0 [ 0.00 0.591 49.312.75 Cs-134 40.0 t 8.7 34.7 } -1.80 0.473 36.7 i 3.06
[ Cs-137 30.0 i 8.7 29.0 i -0.30 f 0.591 30.912.52 10/27/95 Beta 24.8 i 8.7 20.7 -1.40 0.673 27.11 443 11/03/95 Co-60 60.028.7 60.7 0 23 0.118 59.72 405 Zn-65 125.0 1 22.5 [ 134.3 1.20 0.409 l 128.9 i 8.98 Ba-133 99.0117.3 0.60 0.295 95.6 i 6.59
, f 102.7 } f Cs-134 l 40.0 i 8.7 36.7 -1.20 l 0.236 36.9 i 3.03 Cs-137 f 49.0 i 8.7 52.7 1.30 f 0.236 50.813.13 NOTES-(t) USEPA "known" values are listed with a ranDe reflectin0 control (3 sigma) limits.
(b) The normalized deviation from the "known" value is computed by USEPA from the deviation and the standard error of the mean; *2.000 la the warning limit and 13.000 is the control limit.
(c) The normalized range le computed by USEPA from the mean range, the control limit. and the standard error of the range; +2.000 is the warning limit and +3.000 is the control limit.
(d) The grand everage of all participants' results (excluded outhers) is listed with the experimental (calculated) sigma for all laboratones.
(s) USEPA discontinued the crossa: heck media " Food"in 1989. Although milk sampling and analysis by RBS is not performed. the cross-check samples of milk were analyzed, and the data included an a gauge of the " food" sample (Lo., vegetation, fish) analyses performed by RBS. The units for the nuclides 1-131 and Cs-137 are pCl/hter, and for natural potassium is mg/I.
(f) The results reported to USEPA were out of the control limits; refer to the discussion on program exceptions.
(g) Sample analyzed but not reported to EPA in time for publication. Statistical calculations performed in house and included in records.
14
RIVER BEND STATION e RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 3a USEPA INTERCOMPARISON (CROSS-CHECK) PROGRAM PARTICIPATION RESULTS (ESI, System Chemistry Laboratory)
Sample Type Date Analysis USEPA ESI Norm Dev.
(units) "Known" Value' Results Known Milk 09/30/94 l-131 75.0 71.67 -0.72 09/30/94 Cs-137 59.0 62.67 +1.27 09/30/94 K (total) 1715.0 11653.33 -1.24 10/28/94 Beta 23.0 19.00 -1.39 ggtg gt 11/04/94 CW 59.0 69.33 +3.58*
11/04/94 Zn-65 100.0 128.33 +4.91
- 11/04/94 Cs-134 24.0 27.33 +1.15*
11/04/94 Cs-137 49.0 60.33 +3.93*
11/04/94 Ba-133 73.0 97.00 +5.94*
gtg 02/03/95 l-131 100.0 100.00 0.00 03/10/95 H-3 7435 7030.00 -0.94 gt 04/18/95 Beta 86.8 77.93 -1.50 gig 04/18/95 Co-60 29.0 .
29.33 ) +0.12 04/18/95 Cs-134 20.0 -0.46 f 18.67 04/18/95 Cs-137 11.0 11.00 0.00 l 06/09/95 Co-60 40.0 39.66 -0.12 gtgr 06/09/95 Zn-65 76.0 } 80.00 +0.87 06/09/95 Cs-134 50.0 -1.73 f 45.00 06/09/95 Cs-137 35.0 35.66 +073 06/09/95 Ba-133 79 0 76.66 -0.51 07/21/95 Beta 19A 23.4 +1.37 gt 08/04/95 H-3 4872.0 4823.33 -0.17 gtg
- 1. .
1 \
\
NOTES:
Each isotope measured by ESI was 14-33% higher than values reported by the U.S. EPA. When EPA published the results on 2/14/95, the ESI cross-check sample had been disposed of. Because the EPA sample was inadvertently disposed, no follow-up action could be taken on that partmular sample. Since all measurements made by ESI were higher than the EPA values, it 6ppears that a dilution error when preparin0 the sample was the cause of the discrepancy between ESI values and the EPA values. A new liquid standard was purchased from Analytics, Inc. In March 1995 and new efficiency curves were calculated using a 3.5 Marinelli Geometry. There were no c.ppreciatrve differences between the efficiency curves calculated before and after the Nov. 4.1994 cross-check was analyzed. A 3.5L resin standard prepared by Analytics, Inc. was anatyred, resulting in efficiency curves which were approxirnately 90 percent as efficient as deionized water. The results are theoretically in agreement since the Analytics, Inc, resin standard has a density of 1.15 kO /L No data from gamma spectroscopy would be affected by this apparent dilution error.
15
- RIVER BEND STATION
! - RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l
TABLE 4 j MONITORING PROGRAM EXCEPTIONS !
l SAMPLE TYPE PERIOD LOCATION EXCEPTlON/ REASON 4
AI' P &
j 12/27-01/03 AA1,AB1*,AR1,AKS*,AP1 1% weekly volume lost due to power outage of unknown reason R
j 01/3-01/10 AB1' 57% weekly volume lost due to weather related power outage j 01/10-01/16 AB1' 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 i 1
03/07-03/15 AHS* 100% weekfy volume lost due to power outage from building remodeling l 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 trip l 03/27-04/04 AKS* 48% weekly volume lost due to GF1 breaker; sampier replaced at location ;
05/09-05/16 AA1, AR1, AP1 2% weekly volume lost due to power outage of unknown reason AKS*, ABi* 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* 82% weekly volume lost due to no power from feeder pole 1
07/18-08/8 AB1*, AKS* 100% weekly volume lost due to no power from feeder pole l 08/08-08/15 AB1* 41% weekly volume lost due to power problem from previous weeks j 07/11-07/18 AB1*, AKS* LLD for 1-131 not achieved due to small volume caused by power outage 09/12-09/19 ABi* 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% weekly volume lost due power outage of unknown cause 10/31-11/07 AA1, ABi*, AR1, AKS*, 5%12% week!y volume lost due to general power outage of unknown cause AQS2 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 l
TLD's ist 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 05/95 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 1-131 not achieved due to gamma software problems Vegetaten 10/12 GQC LLD for I-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 control limits of study caused by preparation process
- Sample / measurement is not required by RBS Techrucal Specifications /TRM (not identified in ODCM) 16
RIVER BEND STATION o RADIOLOGICAL ENVIRONMENTAL OPERATING REFORT FOR 1995 Veaetation Samoles A control vegetation sample collected during the month of October was analyzed and failed to achieve the detection limit for lodine-131. The LLD for 1-131 is 60.0 pCi/kg; while the actual MDA achieved was 89.3 pCl/kg. This is thought to be caused by the same software problem that was experienced 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.
1 USEPA Cross-check The RBS results of the EPA Performance Evaluation Study for gross beta-in-water of 4/18/95 were outside the control
- limits of the study. RBS reported results averaging 41.0 pCl/1, while the control limits were 69.3 to 103.9 pCi/l, with a j known value of 86.6 pCl/l. Instrument quality control data and worksheet calculations were reviewed with no indication of j a problem. Four other beta-In-water studies were prepared and analyzed during 1995 with all results within the control j 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 1
1
! 3.1 Summarv of Operational REMP Results 3
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 cf uranium and thorium are excluded. For purposes of data i summary, comparison, and discussion, the sampling losions designated "Special Interest" in Table 1 are treated as
- indicator stations if they are within 16 km of RBS and control stations if they are beyond 16 km.
3 3.1.1 Airborne Exposure Pathway - Measurements of radiciodine 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) a were detected in air samples throughout the year. Gross beta activities averaged 0.021 pCi/m' at indicator locations and
! 0.022 pCl/m at controllocations.
i j 3.1.2 Direct Exposure Pathway - Quarterly exposures averaged 12.7 mR total at indicator locations and 13.1 mR ,
, total at control locations.
l 3.1.3 Waterbome Exposure Pathway - No gamma-emitters were measured in surface water or in drinking water at j levels approaching the Technical Specification LLDs. The gamma emitters Mn-54, Co-58, Fe-59, Co-60, Cr-51, La-140, Nb-95, Cs-137, and 1-131 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 pCl/l at all other locations. Tritium (H-3) activities in surface water averaged 3873 pCi/l in the discharge line and were below detection limits at all other locations. Gross beta activities averaged 1.80 pCi/l in the downgradient WD (indicator), and 3.90 pCi/l in upgradient WU (control) groundwater. Only naturally-occurring gamma-emitter, K-40, was i measured in Mississippi River shoreline up-stream and down-stream sediments. 1 3.1.4 Inaestion Exposure Pathway - Specific activities for radiciodine 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.
17 l 1
RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 1 of 4)
River Bend Station Docket Number 50-458 <
West Feliciana Parish, Louisiana Reporting Period 1/1/95 to 12/31/95 j Medium or Type and Total Lower All Indicator Location with Highest Control Number of
- Pathway Numbar of Limit of Statipns Mean Annual Mean Locationy Nonroutine
., Sampled (Unit of Analyses Dytection (f) Range Mean (f) Reported
- Measure) Performed (LLD) Range Results Name Mean (f)'
Distance / Direction Range j
- Air Particylate Gross Beta 0.01 0.021 (306/306) AP1 0.023 0.022 (158/158) 0 (pCi/m') (464) 0.005- 0.059 0.9 Km WNW (53/53) 0.004 - 0.053 0.005 -
0.059 s
I K 40 None 0.490 (306/306) AB1 0.509 0.490 (158/158) 0 (464) Required 0.114 - 0.999 0.5 Km NNE (53/53) 0.233 0.899 0.114 -
0.999 Cs-134 0.05 M < LLO M < LLD 0
- +
. Cs-137 0.06 M < LLD M < LLD 0 l (36)
Air Radio' ine b131 0.07 M < LLD M < LLD 0 (pCi /m (464)
Direct (TLD)* Gamma 12.73(147/147) TM2 15.15(4/4) O O 8.65 -18.11 4.2 km WSW 14 4- 13.10 10.23- 16(24/24]
RW hristy Surface Water H-3 3000 3145(5/8) DL M < LLD 0 (pC1/ liter) (12) 235 4849 (
j + + +
Mn-54 15 44.0 (12/24) DL 44.0 (12/12) M < LLD 0 (36) 11.5 -163 11.5 -163 i
Co-58 15 6.59(10/24) DL 6.59 (10/12) M < LLD 0 (36) 1.95 16.7 1.95-16.7 Fe-59 30 f 14.2 (4/24) DL 14.2 (4/12) M < LLD 0 (36) l 8.54 20.5 8.54 20.5
+ - + +
Co-60 15 66.8 (12/24) DL 66.8 (12/12) M < LLD 0 i (36) 22.2 - 276 22.2 276 5 30 ,
M <LLD 0 Nt>95 15 M<LLD M < LLD M < LLD 0 (36) e Zr 95 30 M < LLD M a LLD 0 (36) 1-131 15 11.0 (6/24) DL 11.0(6/12) M < LLD 0 (36) 6.75 - 15.2 6.75-15.2
+ 4 +-
Cs 134 15 M < LLD M < LLO O (36)
Cs-137 18 1.53 (1/24) DL 1.53 (1/12) M < LLD 0 (36) single value single value i
18 i
I
e RIVER BEND STATION e
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 Control Number of Pathway Number of of Statipns Mean Annual Mean Locationy Nonroutine Sampled (Unit Analyses Detection' (f) Range Mean (f) Reported of Measure) Performed (LLD) Range Results Name Mean (f)'
Distance / Direction Range Surface Water Ba-140 60 All < LLO O (pCuliter) (36) All < LLD r + r e +
La-140 15 42.6 (2/24) DL 42.6 (2/12) All
- LLD 0 (36) 37.9 - 47.2 37.9 47.2 Gross Beta 4 27.2 (20/24) DL 3.07(11/12) 0 (36) 1.56 - 86.9 1.60 5.95 Groundwater H-3 3000 All < LLD ALL<LLD 0 (pCl/hter) (8) r- t ,
Mn-54 15 All < LLD All < LLD 0 (8)
Co-58 15 All < LLD All < LLO O
(*)
Fe-59 33 All < LLD All < LLD 0 (8)
Co-60 15 All
(8) l 2n-65 30 All
+ + +-
Nb-95 15 All < LLD All a LLD 0 (8)
Zr-95 30 All < LLD All < LLD 0
(
L. + + ...
l l-131 15 All < LLD All < LLD 0 (8)
Cs 134 15 All < LLD l All < LLD 0 (8) l !
Cs-137 18 All
Ba-140 60 All
La-140 15 All < LLD All < LLD 0
+ + 4 +
Gross Beta 4 1.80 (1/4) WU 3.90 (1/4) 3.90 (1/4) 0 (8) single value 470 m NNE single value Drinking Water
(pCvhter) (4)
Mn-54 15 All < LLD All < LLD 0 (12) l Co-58 15 All < LLD All < LLD 0 l (12) g- , v l
Fe-59 30 All < LLD All < LLD 0 1, (12) 19
.- - _ _ - .. _ - = - _ __. -
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 5 l 1
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 3 of 4)
River Bend Station Docket Number. 50-458 West Feliciana Parish, Loulslana Reporting Period 1/1/95 to 12/31/95 Medium or Type and Total Lower M indicator Location with Highest Control Number of Pathway Number of Limit of Statipns Mean Annual Mean Locationy Nontoutine Sampled (Unit Analyses Detection' (f) Range Mean (f) Reported of Measure) Performed (LLD) Range Results Distan rection n tw Zn-65 30 M < LLD M <LLD 0 (12)
+ +
Co-60 15 M <LLD M <LLD 0 (12)
Nb-95 15 M < LLD M < LLD 0 (12)
+- + 4 4 Zr-95 30 M < LLD M <LLD 0 (12) 1-131 15 M < LLD M < LLD 0 (12)
Cs-134 15 M < LLD M < LLD 0 (12)
+ +
Cs-137 18 M < LLD l M < LLD 0 (12)
[ ,1 Ba-140 60 M < LLD M < LLD 0 (12)
La-140 15 M = LLO M < LLD 0 (12)
+ +
Gross Beta 4 2.42 (5/12) SWU 3.07(11/12) 3.07(1112) 0 (12) 1.70 2.90 4 km upstream 1.60- 5.95 1.60 - 5.95 8
Gediment' K-40 None 1293 (2/2) 3509 (2/2) 3509(2/2) 0 (pCi/kg dry) (4) Required 1254-1332 4 km upstream 1427 5591 1427 5591
+ 4 + +
Co-134 150 M < LLD M < LLD 0 (4)
+- +- 4 Co-137 180 M < LLD SEDU M < LLD 0 (4) 4 km upstream s
FisMnvertebrate K-40 None 2334 (4/6) 3000 (4/6) 3009 (4/6) 0 (pCl/kg wet) (12) Requwed 703 - 3633 4 km upstream 2635-3393 2635 - 3393
+- + +
Mn-54 130 M <LLD M < LLD 0 (12) 2 Co-58 130 M < LLD M <LLD 0
+ 4 4 Fe-59 260 M <LLD M < LLD 0 f
e 4 4 +
Co 60 130 M < LLD M <LLD 0 (12)
Zn-65 260 M < LLD M < LLD 0 (12)
Cs-134 130 M < LLD M < LLD 0 (12)
Cs-137 160 M < LLD M < LLD 0 (12) 1 20
- l 1
RIVER BEND STATION '
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE 5 i
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 4 of 4)
River Bend Station Docket Number: 50-458 West Feliciana Parish, Louisiana Reporting Period 1/1/95 to 12/31/95 l l
Medium or Type and Total Lower Limit All Indicator Location wtth Highest control Number of Pathway Number of of Detection' Statipns Mean Annual Mean Locationp Nontoutine sampled (Unit Analyses (LLD) (f) Range Mean (f) Reported of Measure) Performed Range Results Name Mean (f)'
Distance / Direction Range 8
Broadlear Be-7 None Required 827(19/67) G1 847 (9/35) 526 (11/36) N/A l Vegetation (103) 87-2842 1 km WNW 251-3556 211-915 i (pCi/kg wet)
K-40' None Required 4785 (38/67) G2 5240 4258 (21/36) N/A (103) 255-9031 1.1 km NW (1 2) 1566 -8638
+ + +
l-131 60 All < LLD All < LLD 0 (103)
Cs-134 60 All < LLD All < LLD 0 (103)
Cs-137 80 17 (1/35) GQC 17.5(2/36) 17.5(2/36) 0 (103) single value 35 km NW ii.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 for 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 series) are often detected but not reported because of the complexities and uncertainties of specific id:ntification.
(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.
21
RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 3.2 Comparison of Operational and Baseline REMP Results Radioiodine and other gamma-emitters in the airbome exposure pathway were not measured at levels above the required LLDs during 1995. Gross beta activities on air particulate filters averaged 0.021 pCl/m at indicator and 0.022 pCi/m' at control locations in 1995, compared to 0.03 pCl/m at both indicator and control locations during the preoperational phase of the REMP (Appendix B).
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 waterbome 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 (pCill)
Location Pre-Operational 19.99 1911 E E fits itit surface Water, Upstream (4 km) 7.80 9.75 4.55 5.15 6.52 3.98 3.07 RBs Discharge Une 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 bridge) 6.80 9.47 5.05 5.01 5.65 5.30 2.42 Upgradent 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 WATERBORNE AVERAGE TRITIUM (pCl/l)
Location Pre Operational it90 1!11 1192 fif3 jlt4_ if_t!
surface Water, Upstream (4 km) <3000 <209 <371 <3s5 <362 <324 <249 RBs Discharge une N/A 20452 7047 5744 4962 1o236 3873 surface Water, Downstream (4 km) <3000 <209 <374 <364 <362 158 235 Dnnking Water (Baton Rouge. lH-10 bridge) <3000 <210 188 <360 <373 176 <249 Upgradient groundwater <3000 <211 <366 <352 <372 336 <244 Downgredient groundwater <3000 <207 <363 4 48 <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 1994 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, seemingly reflect the normal cycles of concentration at which the station cooling towers are operated.
22
RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Tritium activities in the discharge line have remained constant on average since 1991, reflecting the releases 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 (*U), 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 appears 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 Comparison of REMP Results with Operatina Controls The only measurable increases in concentrations of radionuclides or levels of radiation, attributable to plant operation, in the vicinity of RBS during 1945 appear to have been the expected low levels in the liquid Discharge Line. The indicator vs. control comparisons for airbome 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.
l l
l l
l 23 1
I i
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995
, TABLE 6 4
SUMMARY
COMPARISON OF LIQUID EFFLUENT QUANTITIES / ACTIVITIES j 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 Curies 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 l Curies of Co-58 4.93E-03 7.36E-03 3.47E-03 6.08E-03 2.18E-02 Curies of Fe-59 5.16E-03 9.87E-03 5.29E-03 9.02E-03 2.93E-02 l 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 5.01E-01 i
Predicted (Extrapolated) Specific Activities (pCl/l) versus 1995 REMP 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 39.98 50.80 22.47 17.56 32.70 44.00 i 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-131 7.32 11.89 6.86 6.62 8.17 11.00 I La-140 142.97 165.09 100.11 59.02 116.80 42.60 l 1
. l l
3 l i
I l
l l
24
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 APPENDIX A Listinas of 1995 REMP Results The 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 readily-distinguished, naturally-occurring nuclides are included to provide perspective it should be noted that other <
g mma-emitting, naturally-occurring nuclides (e.g., primordial series) were often detected but are not listed because of I thn complexities and uncertaintles of specific identifications. l l
I l
l 1
l 25
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gross Beta Activities (pCl/ liter) in Water (LLD = 4 pCl/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN 2.70 2.90 46.90 1.90 FEB < 2.10 < 2.10 33.30 <1.80 2.60 < 1.80 MAR 2.60 1.70 39.80 2.60 APR < 2.30 < 2.30 66.40 1.60 MAY 2.60 2.60 18.70 1.80 2.00 < 1.90 JUN < 3.51 < 3.51 36.40 6.28 JUL 2.70 2.30 20.20 2.70 AUG 2.20 2.70 17.70 <1.80 2.80 < 1.80 SEP 1.66 < 2.59 88.90 6.96 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 6.96 3.90 AVG 2.81 2.42 42.63 1.80 3.07 3.90 MIN 1.66 1.70 17.70 1.80 1.60 3.90 Tritium Activities (pCl/ liter)in Water (LLD = 3000 pCl/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU 1st Quarter < 250 < 249 3721 < 251 < 249 < 244 2nd Quarter < 230 < 230 3468 < 228 < 230 < 230 3rd Quarter < 234 < 234 4849 < 233 < 233 < 233 4th Quarter 236 < 229 3464 <229 < 225 < 224 MAX 236 < LLD 4849 < LLD < LLD < LLD AVG 236 3873 MIN 236 3464 i
l i
26
~
RIVER BEND STATION i -
RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 7
Gamma-Emitting Nuclide Activity (pCl/ liter)in Water
? CESlUM 134 (LLD = 16 pCi/l) 3 INDICATORS CONTROLS 1
{
j JAN < 4.66 < 5.12 < 4.47 < 5.86 l j FEB < 6.35 < 5.40 < 5.56 < 9.38 < 6.98 < 11.4 j j MAR < 4.52 < 3.59 < 3.85 < 3.72 l I APR < 3.17 < 2.99 < 5.44 < 3.52 l
, MAY < 3.79 < 3.51 < 4.24 < 6.26 < 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 l DEC < 3.60 < 4.43 < 3.25 < 2.87
} MAX < LLD < LLD < LLD <LLD < LLD < LLD AVG MIN CESIUM 137 (LLD = 18 pCla)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 5.28 < 5.48 < 4.32 < 5.15 FEB < 8.68 < 6.44 < 6.15 < 9.84 < 7.87 < 11.90 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 1.83 < 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 < 0.92 < 2.39 < 2.42 < 1.05 < 3.25 DEC < 3.54 < 4.05 < 3.50 < 2.84 MAX < LLD < LLD 1.83 <LLD < LLD < LLD AVG 1.63 MIN 1.83 27
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 GammaEmitting Nuclide Activity (pcilliter) in Water IODINE .131 (LLD = 16 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 14.90 < 14.50 < 12.00 < 13.40 FEB < 13.80 < 12.30 8.75 < 07.3 < 12.90 < 10.2 MAR < 14.90 < 14.90 8.54 < 14.90 APR < 14.30 < 14.90 10.40 < 14.90 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 MAX < LLD < LLD 15.20 < LLD < LLD < LLD AVG 11.0 MIN 0.75 BARIUM 140 (LLD = 60 pCl/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 < 39.10 < 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 < 2^ 7J < 27.80 < 25.60 AUG < 2~.: '. - 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 MAX < LLD < LLD < LLD < LLD < LLD <LLD AVG MIN 28
I RIVER BEND STATION
.o RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995
)
l Gamma-Emitting Nuclide Activity (pCl/ liter) in Water LANTHANUM 140 (LLD=15 pCl/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 < 13.90 < 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 i DEC < 9.64 < 13.20 < 10.40 < 10.40 l
MAX < LLD < LLD 47.2 < LLD < LLD < LLD AVG 42.6 MIN 37.9 j MANGANESE 54 ( LLD=15 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 4.40 < 4.78 80.80 < 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 < 3.09 183.00 < 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 MAX < LLD < LLD 163.00 < LLD < LLD < LLD AVG 44.04 MIN 11.50 29
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma. Emitting Nuclide Activity (pCl/ liter)in Water IRON 69 (LLD = 30 pCl/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU Wu 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 j OCT < 6.11 < 6.34 8.54 < 10.90 '
NOV < 1.59 < 2.68 10.70 < 6.69 < 3.26 < 7.06 j DEC < 6.91 < 10.50 < 9.17 < 7.88 l
l l
l MAX < LLD < LLD 20.50 < LLD < LLD < LLD AVG 14.24 l
MIN 8.54 l COBALT 58 (LLD = 15 pC1/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 5.57 < 5.05 8.16 < 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 1.96 < 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 I l
l MAX < LLD < LLD 16.70 < LLD < LLD < LLD AVG 6.59 MIN 1.95 30 :
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma-Emitting Nuclide Activity (pCilliter)in Water COBALT.60 (LLD = 16 pCl/L)
INDICATORS CONTROLS 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 26.70 < 6.24 < 4.54 < 4 43 JUN < 2.76 < 2.85 22.20 < 2.71 JUL < 3.45 < 1.92 32.30 < 2.76 AUG < 2.61 < 4.85 32.30 < 5.91 < 5.32 < 4.41 SEP < 3.57 < 3.13 26.10 < 3.69 i OCT < 2.78 < 2.83 27.40 < 3.97 l NOV < 0.62 < 0.91 37.90 < 2.75 < 1.14 < 3.22 i DEC < 3.09 < 4.99 24.10 < 3.35 l l
MAX < LLD < LLD 276.00 < LLD < LLD < LLD l AVG 66.76 MIN 22.20 ZINC -66 (LLD = 30 pCl/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 AUG < 5.24 < 7.32 < 5.41 < 9.74 < 9 72 < 9.47 SEP < 5.83 < 6.86 < 8.36 < 6 36 OCT < 5.45 < 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 31
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma-Emitting Nuclide Activity (pCi/ liter)in Water NIOBlUM - 96 (LLD = 16 pCi/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 6.56 < 6 49 < 5.72 < 7.55 FEB < 10.50 < 7.31 < 7.13 < 9.86 < 12.10 < 14.90 MAR < 5.87 < 6.05 < 5.75 < 6.91 APR < 4.28 < 4.46 < 7.01 < 5.22 MAY < 5.19 < 4 97 < 6.74 < 7.66 < 5.27 < 13.40 JUN < 4.16 < 3.46 < 3.93 < 3.78 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 < 4.71 OCT < 3.53 < 3.47 < 4.84 < 4.68 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 < LLD < LLD < LLD < LLD AVG MIN ZlRCONIUM - 96 (LLD = 30 pCl/L)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN < 9.65 < 10.50 < 7.99 < 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 < 11.30 < 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 MAX < LLD < LLD < LLD < LLD < LLD < LLD AVG MIN 32
RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma-Emitting Nuclide Activity (pCl/ 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 81(No LLD)
INDICATORS CONTROLS PERIOD SWD DW DL WD SWU WU JAN 62.7 FEB 166.0 -
MAR 177.0 APR 309.0 MAY 60.3 JUN 140.0 JUL 114.0 AUG 44.8 SEP 86.8 OCT 83.1 NOV 91.8 DEC 134.0 MAX 300.0 AVG 120.7 MIN 44.8 33
E RIVER BEND STATION 4
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Normalized Gamma-Ray Exposure Summary (mR)
Quarterly Thermoluminescence Dosimeter Results INDICATOR LOCATION 1ST QTR 2ND QTR 3RD QTR 4TH QTR MEAN 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 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 l 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 TQS1 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 34
i 1
RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Normalized Gamma-Ray Exposure Summary (mR)
Quarterly Thermoluminescence Dosimeter Results CONTROL 1 LOCATION 1ST QTR 2ND QTR 3RD QTR 4TH QTR l MEAN l
TAC 12.26 12.77 12.60 15.81 13.36 TEC 11.74 12.82 12.97 14.90 13.11 TOS 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 35
RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Charcoal Cartridge lodine-131 Activity (E-2 pCl/m^3)(LLD = 0.07 pCl/m^3)
Period Endina aat AR1 AB.1 AKE AP._t A932 ALG Atif A91 0193S5 <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 <1.33 <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 <1.48 <1.21 <1.79 <0.92 <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 <i .79 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 <1.62 <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 <2.45 <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 <1.83 <1.15 05/16/95 <2.06 <2.60 <2.88 <2.05 <2.20 <2.18 <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 05/31/95 <1.71 <2.03 <2.20 <1.95 <1.52 <1.61 <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 06/13/95 <1.65 <2.02 <3.11 <2.38 <1.72 <0.00 <3.41 <2.20 <2.38 06/21/95 <1.97 <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 1 08/15/95 <1.98 <4.59 <2.32 <1.69 <2.03 <2.14 <1.66 <2.25 <1.59 I 08/22/95 <1.89 <2.60 <2.42 <2.10 <1.68 <1.94 <1.68 <1.61 <2.42 l 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 l 09/19/95 <2.21 <5.03 <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 <2.39 <1.87 <1.64 <1.87 <2.65 <2.02 <1.50 l
10/10/95 <2.06 <2.32 <1.76 <1.87 <1.56 <2.40 <1.82 <2.27 4 10/17/95 <2.21 <2.09 <2.01 <1.76 <2.07 <2.97 <2.07 <2.08 10/24/95 <1.30 <2.35 <1.34 <1.61 <1.96 <1.77 <0.81 <2.30 j 10/31/95 <2.05 <2.22 <1.83 <1.97 <1.45 <2.55 <1.63 <1.66 <2.01 j 11/07/95 <2.17 <2.04 <1.87 <1.68 <2.30 <1.81 <1.64 <2.00 <1.91 l 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 l 11/28/95 <1.64 <2.20 <1.92 <2.16 <2.24 <2.55 <2.22 <1.90 <2.66 I 12/05/95 <1.86 <2.18 <2.60 <2.73 <2.48 <2.67 <2.18 <1.88 <1.51 l 12/12/95 <1.89 <2.69 <2.02 <2.57 <2.43 <2.02 <1.67 <2.28 <1.73 l 12/19/95 <1.97 <2.05 <2.21 <2.09 <1.91 <2.13 <1.94 <2.32 <2.07 l 12/27/95 <1.50 <2.19 <1.78 <2.18 <1.88 <1.92 <2.27 <1.38 <5 05 l 01/03/96 <1.68 < 1.70 <1.80 <2.04 <2.72 <2.46 <2.38 <1.90 <1.86 l
MAX <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD l AVO MIN l 36
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Air Particulate Filter Gross Beta Activity (E.2 pCi/m^3)(LLD = 0.01 pCL/m'3)
Period Indicators Controls Eridina A&1 ABA A81 AE1 AP1 a.Q. t1 ALG A&1 8Q1 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 4 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 1.40 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 d
02/21/95 0.70 0.70 0.90 0.90 0.60 0.80 1.20 0.90 1.00 J 02/28/95 0.90 0.90 1.40 1.00 0.80 1.00 1.00 1.20 1.40 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 t 05/02/95 2.00 1.80 1.50 1.50 4.30 1.50 1.90 1.80 1.60 j 05/09/95 1.40 1.20 2.00 2.10 2.60 1.30 1.10 1.30 1.30 05/16/95 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 )
- 06/27/95. 3.25 2.85 2.78 3.27 4.27 2.53 3.77 3.22 3.30 1 07/05/95 1.86 1.59 1.81 1.93 2.78 2.16 2.43 1.68 1.91 l 1 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 07/2595 1.76 1.75 2.17 1.78 2.39 1.96 1.75 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 i 08/15/95 2.23 1.10 2.25 1.86 2.23 2.18 1.95 2.26 2.20
)
08/7Y95 2.21 1.89 2.26 1.82 2.51 2.42 2.78 2.62 2.54 08/29/95 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 10/0395 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 2.16 2.22 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 2.20 11/1495 2.23 2.48 2.36 2.39 2.40 2.34 2.71 2.32 2.35 11/21/95 3.78 3f2 3 99 3 97 3.68 3 83 4.10 3.65 3.41
! 11/28/95 3.52 3.57 3.55 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 1.61 1.61 1.57 1.60 1.54 1.55 12/27/95 3.94 3.83 3.98 4.15 4.23 4.10 4.24 4.33 3.05 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 5.26 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: 0.50 MAX: 5.90 AVG: 2.07 CONTROL MIN: 0.40 MAX: 5.27 AVG: 2.17 37
RIVER BEND STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Air Particulate FiMer Composite Cs-134 Activity (E-2 pCUm^3) by location (LLD = 0.06 pCl/m^3)
PERIOD aal AB1 AE1 AKE AP.1 AQ12 ALG atin A9.1 1ST QTR < 0.10 < 0.13 < 0.11 < 0.09 < 0.10 < 0.11 < 0.10 < 008 < 0.11 2ND QTR < 0.34 < 0.30 < 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 < 0.40 < 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 pCl/m^3) by location (LLD = 0.06 pCi/m^3)
PERIOD aal AR1 AB1 AKE AP_1 A912 ALG atif a9.1 1ST QTR < 0.70 < 0.10 < 0.08 < 0.07 < 0.08 < 0.08 < 0.10 < 0.06 < 0.10 2ND QTR < 0.31 < 0.36 < 0.48 < 0.1 '., < 0.30 < 0.13 < 0.58 < 0.12 < 0.35
- 3RD QTR < 0.11 < 0.71 < 0.40 < 0.61 < 0.52 < 0.41 < 0.35 < 0.11 < 0.48 l 4TH QTR < 0.10 < 0.52 < 0.50 < 0.32 < 0.32 < 0.35 < 0.22 < 0.10 < 0.39 MAX < LLD < LLD < LLD < LLD <LLD < LLO < LLD < LLD < LLD
' AVG MIN Note: Samples counted are composed of thirteen filters from each location composded e.1ch quarter.
i l
I i
38 I
ll
RIVER BEND STATION j RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Charcoal Cartridge Potassium 40 Activity (E-2 pCl/m^3) by location ;
P_gjgd l Endina A8.1 AR1 A&t AKE AP1 8912 ALG A!it e_9.1 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 1 01/16/95 48.8 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 l 01/31/95 63.5 46.6 12.5 45.8 41.1 38.2 36.6 1 02/07/95 45.8 53.2 40.5 41.5 43.5 55 02/14/95 25.3 52.7 50.3 45.4 44.1 26.5 41.2 68.7 l 02/21/95 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 i 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 57.8 36.1 44.5 49.1 51.9 42.9 67.3 56.5 04/18/95 38.4 35.9 31.5 58.1 23.6 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 85.2 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/To/96 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 4? .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 12/10/95 33.9 37.3 32.2 31.5 l f2/27/95 21.6 50.5 70 27.5 37.4 87.9 l 01/03/96 38.6 47.4 43.9 31.3 36.7 MAX 75.4 99.9 99.9 89.2 75.0 85.1 B3.5 74.3 89.9 AVG 46.8 50.9 53.2 50.5 43.6 49.2 83.2 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 39 t
I t
RIVER BEND STATION
. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l
Gamma-Emitting Nuclide Activity (pCl/kg wet)in Upstream Fish LLD's (pCi/kg, wet)
COLLECTION 130 160 130 260 130 130 260 l DATE CS-134 CS 137 MN44 FE49 CO48 C040 ZN45 K 40 i 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 < 006.40 < 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 < 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 j l
Gamma-Emitting Nuclide Activity (pCl/kg wet)in Downstream Fish j COLLECTION DATE CS-134 CS-137 MN44 FE49 C048 C040 ZN45 K-40 6/30/95 < 071.60 < 084.70 < 083.10 < 240.00 < 057.10 < 091.40 < 207.00 2934 1 6/30/95 < 061.90 < 073.70 < 071.40 < 249.00 < 080.40 < 068.40 < 098.10 3633 6/30/95 < 083.10 < 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 < 104.00 < 106.00 < 066 60 < 116.00 < 122.00 < 247.00 MAX < LLD < LLD < LLD < LLD < LLD < LLD < LLD 3633 AVG 2334 MIN 703 Gamma 4mitting Nuclide Activity (pCl/kg dry)in Shoreline Sediment LLD's (pC1/kg): Cs-134=150; Cs-137=180 COLLECTION UPSTREAM DOWNSTREAM DATE CS 134 CS-137 K40 CS-134 CS-137 K40 6/30/95 < 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 40
^
RIVER BEND STATION
.' RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Gamma-Endtting Nuclide Activity (pCilkg, wet)in Broadleaf Vegation Site Garden #1 (Indicator)
LLD's (pCi/kg, wet)
COLLECTION 80 to 60 DATE CS-134 CS-137 l-131 BE-7 K-40 1/11/95 < 41.0 < 39.0 < 50.0 ,
1/11/95 < 49.0 < 36.0 < 45.0 l 1/11/95 < 24.0 < 24.0 < 35.0 I 2/13/95 < 49.0 < 43.0 < 36.0 2/13/95 < 21.0 < 23.0 < 21.0 2/13/95 < 24.0 < 24.0 < 23.0 ,
3/20/95 < 32.0 < 29.0 < 28.0 l 3/20/95 < 38.0 < 39.0 < 35.0 j 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.L 4/24/95 < 28.0 < 26.0 < 30.0 5/30/95 < 20.0 < 20.0 < 18.0 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 < 43.0 6332 7/28/95 < 47.0 < 45.9 < 36.0 408 4843 8/31/95 < 32.1 < 39.6 < 57.9 3556 4753 8/31/95 < 22.4 < 37.0 < 56.1 4821 8/31/95 < 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
! < 36.3 10/21/95 < 42.9 < 46.7 4428 10/31/95 < 28.2 < 37.2 < 38.1 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.
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RIVER BEND STATION
. . RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 Garnma-Emitting Nuclide Activity (pCl/kg wet)in Broadleaf Vegation Site Garden #2 (Indicator)
LLD's (pCl/kg, wet) c0LLECTION 60 80 to i DATE CS-134 CS-137 -131 BE-7 K-40 DATE 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 j 2/13/95 < 47.0 < 38.0 < 42.0
- 2/13/95 < 45.0 < 43.0 < 44.0 l 2/13/95 < 34.0 < 31.0 < 34.0
]
3/20/95 < 28.0 < 25.0 < 23.0 ;
3/20/95 < 24.0 < 22.0 < 24.0 )
3/20/95 < 35.0 < 32.0 < 39.0 l 4/24/95 < 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 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 < 531 < 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 ,
l 8/31/95 < 27.0 < 24.2 < 53.5 2018 7281 8/31/95 < 25.1. < 27.2 < 48.9 247 4647 9/30/95 < 44.2 < 40.3 < 55.0 4943 9/30/95 < 31.9 < 37.2 < 50.1 4863 9/30/95 < 42.3 < 40.9 < 54.8 380 6958 10/31/95 < 37.9 < 36.6 < 51.6 291 4802 10/31/95 < 32.9 < 47.0 < 47.8 3128 10/31/95 < 56.7 < 46.2 < 59.9 2335 4066 l 11/30/95 < 49.0 < 36.0 < 58.1 3336 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: ActMties of Be-7 and K40 were not available for January through May.
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RIVER BEND STATION e RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 i
Gamma-Emitting Nuclide Activity (pCilkg wet)in Broadleaf Vegation Angola Location (control)
LLD's (pCi/kg, wet)
COLLECTION 60 80 60 DATE CS-134 CS-137 l-131 BE-7 K 40 1/9/95 < 40.0 < 37.0 < 59.0 1/9/95 < 32.0 < 25.0 < 40.0 1/9/95 < 46.0 < 32.0 < 58.0 2/13/95 < 22.0 < 26.0 < 21.0 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 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 < 17.8 < 37.7 3552 9/28/95 < 21.8 < 44.2 < 50.9 4283 10/12/95 < 34.7 < 41.2 < 50.9 4115 10/12/95 < 44.7 < 45.6 < 89 3 480 4444 10/12/95 < 26.4 < 30.5 < 58.6 2600 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 AVG 17.5 526 4258 MIN 11.0 211 1566 NOTE: ActMties of Be-7 and K-40 were not available for January through May.
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< RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 APPENDIX B Summary of Preoperational REMP (Baseline) Results Table B 1 summarizes the results of preoperational radiological environmental monitoring from January,1983, through October,1985. Further details are available in the respective annual reports (1983,1984, and 1985).
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RIVER BEND STATION
,' RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 TABLE B.1 PREOPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 1 of 4)
River Bend Station Docket Number: 50-458 Wzst 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 Pathway Sampled Number of of Stations Mean (f), Annual Mean Nonroutine Analyses Detection, Range Locationf Mean Reported (Unit of Measure) (f) j Performed (LLD) Range Results Name Mean (f)'
Distance / Direction Range Air Parti,:ylate Gross Beta 0.01 0.03 (752/759) AQS2 0.03 (146/158) 0.03 (326/327) N/A (pCi/m*) (1086) 0.01 - 0.09 5.8 km NW 0.01 0.09 0.01 - 0.08 Cs-134 0.05 All < LLD All < LLD N/A (95)
Cs 137 0.06 All
Air Radioi ine L131 0.07 All < LLD All < LLD N/A (pCi m (1086)
Direct (TLD)* Gamma Monthly 6.8 (1018/1064) TM2 7 8(27/28) 6.7 (139/1f 3) MA (mR total) (1214) 0.7-19.3 4.2 km WSW 3.2 -16.2 0 -27.8 8 8 8 Gamma Quarterty 19.0 (404/418) TG1 27.5 (11/11) 18.9 (51/54) N/A (472) 6.8 32.1 1.6 km SE 12.2-27.6 6.5 -23.5
, + + 4 Surface Water H-3 2000 All
Mn-54 15 All < LLD l All < LLD N/A (68) l Co-58 15 All < LLD All < LLD MA (68)
+ +
Fe-59 30 1 All < LLD All a LLD N/A (68)
CM0 15 All < LLO All < LLD N/A (68) i Zn-65 30 All < LLD MA (68)
Nb-95 15 All < LLD N/A (68) d T
Zr-95 30 l All < LLD All < LLD N/A (68) l
+ + 4- 4 L131 15 All < LLD All e LLD N/A (68)
Cs-134 15 All < LLD All < LLD N/A (68) 4 Cs-137 18 All < LLD ALL=LLD N/A (68)
+'
Ba 140 60 All < LLD ALL =LLD N/A (68)
La-140 15 All < LLD All
- LLD N/A (68)
+ + + 4 4 Gross Beta 4 8.1 (23/26) SWD 8.1 (23/26) 7.8 (24/26) MA (52) 4 12 4 km downstream 4-12 5-13 45
'^ RIVER BEND STATION 4 RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l
l TABLE B.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 2 of 4)
River Bend Station Docket Number 50-458 l 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;'.hway Sampled Number of of Stations Mean (f)8 Annual Mean Locationy Mean Nontoutine (Unit of Measure) Analyses Detection, Range (f) Reported Performed (LLD) Range Resutts Name Mean (f)*
Distance / Direction Range
+- 4 r +- 4 Groundwater" H-3 2000 All < LLD All < LLD N/A (pCi/ liter) l; (24) y + + +
I
. Mn-54 15 All < LLD All
- LLD N/A l (22)
Co-58 15 All e LLD All < LLD N/A l (22) l Fe-59 30 All < LLD All < LLD N/A (22)
Co-60 15 All < LLD All < LLD N/A a2) ,,,, .[ l Zn-65 30 All < LLD All < LLD N/A l G2)
. + + ,
Nb-95 15 All < LLD All < LLD N/A l (22)
Zr 95 30 All a LLD All
e v , l Cs-134 15 All e LLD All < LLD N/A I (22) )
E I
Cs-137 18 All < LLD All < LLD N/A (22) 4 + 4 Ba-140 60 All
- LLD All
- LLD N/A (22) v v ,
La-140 15 All < LLD All < LLD N/A (22)
Gross Beta 4 4 (5/12) WD 4(5/12) 6 (2/3) N/A (15) 28 470 m SW 2-8 3-9
+ + + +
Drinking Water" l H-3 2000 All < LLD All
- LLD N/A (pCuliter) I (18)
Mn-54 15 All < LLD All
- LLD N/A (40)
+ + 4-Co-58 15 All < LLD All e LLD N/A (40)
Fe-59 30 All e LLD r All < LLD N/A (40)
Co-60 15 All
- LLD All
- LLD N/A (40)
+ +- + 4 Zn-65 30 All < LLD All < LLD N/A (40) v v n-Nb-95 15 All < LLD All < LLD N/A (40) 46
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/ RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1995 l i
l TABLE B.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
(Page 3 of 4) I Rivtr Bend Station Docket Number: 50-458 West Feliciana Pansh, 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 Pathway Sampled Number of of Stations Mean (f), Annual Mean Locationy Mean Nontoutine (Unit of Measure) Analyses Detection, Range (f) Reported .
Performed (LLD) Range Results l Name Mean (f)*
Distance / Direction Range i ggggr-+ +-
Zr-95 30 All 4 LLD All
+
N/A l
(pCnter)
(40)
+ + + +
l-131 15 All < LLO All < LLD N/A I (40)
Cs-134 15 All
+ + +
- LLD N/A (40) l l
Ba-140 60 All < LLD All < LLD N/A (40)
La-140 15 All < LLD All < LLD N/A (40)
> + +
Gross Beta 4 6 8 (28/28) Donaldsonville 6.8 (28/28) 7.8 (24/26) N/A (54) 3-12 138 km downstream 3 12 5-13
{
Shoreline Sediment' K-40' None 13700 (2/2) SED 13700 (2/2) Not N/A (pCi/kg dry) (2) Required 11400 15900 4 km downstream 11400 -15900 Required Cs-134 150 All
- LLD N/A (4)
+ e Cs-137 180 All < LLD All < LLD N/A l (4) f Milk K-40' None 1313(8/9) MF2 1313(8/9) 1318(7/9) N/A (pCnter) (18) Required 1179-1475 6 km ESE 1179 -1475 1196-1409
+ ,
1-131 1 All
Cs-134 15 All < LLD All < LLD' N/A .
(82) !
+
Cs-137 18 All
- LLD All
- LLf N/A (82)
Br 140 60 All < LLD All < LLD' N/A (82)
( La-140 15 All < LLD All < LLD N/A t
(82) t + +-
1 Figh/ invertebrates K-40' None 9037 (2/2) FD 9037 (2/2) 7840 (4/4) 8 N/A (pCn9 wet) (6) Required 4 km downstream 6320 -11754 4177- 11438 Mn-54 130 All < LLD All < LLD N/A (15)
Co 58 130 All
Fe-59 I 260 All < LLD' All
- LLD' N/A i
(15) 130 All = LLD All < LLD N/A I
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/ RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 1905 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 i Medium or Type and Total Lower All Indicator Location with Highest Control Locajlons Number of l Pathway sampled Number of Limit of Stations Mean (f), Annual Mean Mean (f) Nontoutine (Unit of Measure) Analyses Detection, Range Range Reported l Performed (LLD) Results l
Name Mean (f)' l Distance / Direction Range FisMnvertebrates Zn-65 260 All
(continued)
Cs-134 130 All < LLO All
- LLD N/A (15)
{
C4-137 160 All < LLD All < LLD N/A (15)
Vegetation K-40' None 3368 (6/10) G2 3368 (6/10) 3768 N/A (pCi/kg wet) (11) Required 1398 5389 1.3 km NW 1398 - 5389 single value 6-131 60 AH < LLD' All < LLD N/A l (75)
> +
Cs-134 60 All
Cs-137 80 97 (4/43) G1 97(4/43) All < LLD N/A (76) 59 - 120 1 km WNW l 59-120 f 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 " quarterly" measurement for October,1985.
(4) Beginning in January,1985, groundwater was sampled from one upgradient (WU - control) and one downgradient (WD - indicator) well; previously, groundwater was sampled from construction dewatering (well-point) wells.
(5) The upstroam surface water sampling location (SWU) is used as a " control" for dnnking water comparisons.
(6) The values listed for K-40 were drived from the incipient in-house analytical program.
1 (7) The values listed for the control location for milk were derived from the incipient in-house analytical 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 during this j 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 analyses; and 4 out of 9 La- 1 140 analyses. Similarty, the required LLD for 1-131 in broadleaf vegetation was not met in 1 out of 11 analyses. (See discussion of Program Exceptions 1 in the Preoperational Radiological Environmental Monitoring 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 in-house) was 263 pCi/kg (wet).
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