ML19261C227
| ML19261C227 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 09/30/1978 |
| From: | VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| Shared Package | |
| ML19261C226 | List: |
| References | |
| NUDOCS 7903200228 | |
| Download: ML19261C227 (100) | |
Text
{{#Wiki_filter:s e TTELEDYNE INL-6343-432 ISOTOPES VIRGINIA ELECTRIC AND POWER COMFANY P.O. BOX 402 MINERAL, VIRGINIA 23117 NORTil ANNA P0hTR STATION ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRMt 1978 DESCRIPTION OF Ti!E OPERATIONAL PROGRM! AND QUARTERLY REPORTS AND ANALYSIS Prepared by TELEDYNE ISUTOPES 50 VAN BUREN AVENUE WESTWOOD, NEW JERSEY 07675 79032003 g \
e s T TELEDYNE ISOTOPES TABLE OF CONTENTS Page ii LIST OF TABLES ii LIST OF FIGURES 1 INTRODUCTION 2 DESCRIPTION OF Tile OPERATIONAL PROGRA51 2 Tile HADIOLOGICAL ENVIRON!! ENTAL PROGRMI II ABSTRACTS OF ANALYTICAL PROCEDURES 14 ABSTRACTS OF RADI0 ASSAY PROCEDURES 18 QUALITY CONTROL OF ANALYSIS SU) MARY OF QUARTERLY RESULTS AND DISCUSSION 19 A,B,C EXCEPTIONS AND SPECIAL EVENTS 20 A,B,C AIRBORNE EXPOSURE PATI!WAY 28 A,B,C DIRECT EXPOSURE PATilWAY 31 A,B,C WATERBORNE EXPOSURE PATiiWAY 38 A,B,C INGESTION EXiOSURE PATilWAY 42 A,B,C CONCLUSIONS 44 REFERENCES A-1 APPENDIX A - DATA TABLES - FIRST Qt> \RTER 1978 B-1 APPENDIX B - DATA TABLES - SECOND QUAR 19.R 1978 C-1 APPENDIX C - DATA TABLES - TillRD QUARTER 1978 APPENDIX D - DATA TABLES - FOURTil QUARTER 1978
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'FtTELEDYNE ISOTOPES LIST OF TABLES Page TABLE 1 Operational Radiological Environmental Monitoring Program 5 1ABLE 2 Sampling Station Identification and Location 8 TABLE 3 Lower Limits of Detection (LLD) 15 TABLE 4 REMP Summary - Airborne Exposure 22 TABLE 5 REMP SUM 51ARY. - Direct Exposure 30 TABLE 6 REMP Summary - Waterborne Exposure 33 TABLE 7 REMP
SUMMARY
- Ingestion Exposure 40 TABLE 8 Radiation Do to the Individual from Natural and Aritifical 43 Sources LIST OF FIGURES' FIGURE 1 Map of Sampling Stations in Vicinity of NANS 9 FIGURE 2 Map of the Environmental Sampling Stations 10 FIGURE 3 Airborne Exposure - Gross Beta and Cc-144 (1977-1978) 21 FIGURE 4 Direct Exposure - Environmental TLD (1977-1978) 29 FIGURE 5 Waterborne Exposure - Tritium (1977-1978) 22 FIGURE 6 Ingestion Exposure - Sr-90 (1977-1978) 39 m
TTELEDYNE ISOTOPES . INTRODUCTION Outlined in this document is the description of the operational environmental radiological monitoring program conducted by Virginia Electric and Power Company for the North Ar.na Power Station, ar.d a compilation of the data generated to satisfy the monitoring requirements. This program is based on the technical specifications requiring the collection and analysis of var-ious sample media to provide information on the type and quantity of radio-activity in certain indicator organisms or critical pathways. The operational program became mandatery on April 5,1978 upon granting of the operating li-cense for the North Anna Power Station Unit 1. Virginia Electric and Power Company is responsible for the col-Icction of the sampics required for the program and Teledyne Isotopes is responsibic for the analysis of each sample and submission of the reports of analysis. Quarterly summaries of the data reported for each sampic type will be appended to this document for the period of January 1,1978 through December 31, 1978.
'these quarterly data summaries will include a compilation of the radioactivities reported for each sample type and pathway and a summary of the mean, range, and detections / total for each sample type and radionuclide.
From the data summaries, a radiological environmental monitoring program summary table as specified in Regulatory Guide 4 8 (Ref.1) will be prepared and used as the basis for evaluating the radiation exposures resulting from the North Anna Power Station operations. Baseline IcVels of radioactivity in the environs of the North Anna Power Station have been established during the preoperational phase conducted from July 1, 1974 through December 31,1977 (Ref. 2-6) . On April 5,1978 the operating license for the North Anna Power Station - Unit I was granted requiring the transi' tion from the preoperational to the operational phase of the radiological environmental monitoring program. The operational phase of the program is described in Appendix B to the Operating License (Ref. 7) and the required analysis and specifica-tions (Table 1) were phased into the program during the January 1 - March 31, 1978 quarter. The overall objectives (Ref. 7) of the operational radiological environmental monitoring program are to identify changes of radioactivity in the vicinity of the North Anna Power Station and to provide information on the types and quantity of radiation in certain critical pathways and indicator organisms as a basis for evaluating radiation exposure from sta-tion operation. 1
'5?TELEDYNE ISOTOPES Direct Radiation Environmental direct radiation IcVels are monitored by therm-oluminescent dosimeters (TLD) using a multi-area, phosphor teflon CaSO 4
- Dy dosimeter. Dosimeters are placed at each location and ex-changes are made quarterly. TLDs are 'acated at stations 1, 3, 4, 5, 6, 7, 21, 22, 23, and 24 (see Tabic and Figures 1 and 2).
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Milk Milk sampics are collected monthly from locations'I2, 13, 14 and analy:cd for I-131 by chemical separation and gamma isotopic emit-ters by high resolution Ge(Li) gamma spectrometry, Quarterly milk sampics are analyzed for Sr-89, Sr-90. Milk sampling locations are listed in Tabic 1 and shown in Figures 1 and 2. Well Water Water sampics are collected qua erly from the Environmental Laboratory well and analyzed for tritium and for gamma emitting nu-clides by high resoluticn Ge(Li) gamma spectrometry. The second quarter samples are also analy:cd for Sr-89, Sr-90. Surface Kater A sample of surface water (North Anna River) is collected quar-terly from Station 11 for tritium and gamma isotopic nuclides. Surface
, water sampics are also collected monthly from Station 08 (Discharge)
' and Station 09 (Reservoir) and analy:cd for tritium, iodine-131, and gamma isotopes. The second quarter surface water sampics or composites are also analy:cd for Sr-89, Sr-90.
Fish Fish are collccted annually near the beginning of the season from two locations and analy:cd for gamma emitting nuclides by high resolution Ge(Li) gamma spectrometry. Fish sampling sites are at locations 8 and 9 on Figure 1. Terrestrial Vegetation Samples of green leafy vegetation (cultivated or weeds) are collected annually during the harvest from two locations, Stations 21 and 23. These samples are analyzed for gamma emitting nuclides by high resolution Ge(Li) gamma spectrometry. Soil Soil sampics arc co11ceted from locations near the airborne stations every three years and analyzed for gamma emitting naclides by high resolution Ge(Li) gamma spectrometry. The stations are 1, 3, 4, 5, 6, 7, 21, 22, 23, and 24. Stations 1, 21, 22, 23 and 24 are also analy:cd for Sr-S9, Sr-90. 3
L TABLE 1 NORTH ANNA POWER STATION OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGnAM EXPOSURE PATHWAY SAMPLE LOCATION AND/OR SAMPLING AND TYPE AND FREQUENCY AND/OR SAMPLE MAP NUMBER DESIGNATION COLLECTION FREQUEf'CY OF ANALYSIS AIRBORNE Particulates Site or site boundary: 1,21, Continuous sampler Weekly gross beta on , 22, 23 (2/3 running time each filter, quarterly Communities: 3,5,7 cycle), changes gamma isotopic on each Control: 24 weekly location composite, Sr-89-90 on second , Radioiodine 3,21,23,24 quarter composite, 1-131 on radioicdine weekly. Soil 1,3,4,5,6,7,21,22,23,24 Once per 3 years Gamma isotopic on each,
, Sr 89-90 on 1,21,22, 23, 24 (on collection)
DIRECT 1,3,4,5,6,7,21,22.23,24 Quarterly Gama dose quarterly WATERBORNE Reservoir: 9 Monthly Gamma {sotopicradio-Discharge: 8 iodine H-3 quarterly composite, Sr 89-90 second quarter composite Nc, ' Anna River: 11 d Quarterly Gamma isotopic, H-3 on Groun. well): 1A collection, Sr 89-90 second quarter sample
2;_IABLE,1 , ._ NORTH ANNA POWER STATION OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM EXPOSURE PATHWAY SAMPLE LOCATION AND/0R SAMPLING AND TYPE AND FREQUENCY AND/0R SAMFLE MAP NUMBER DESIGNATION COLLECTION FREQUENCY OF ANALYSIS
- a. Once each month 1 and 2 meem tnyroid isodose lines will be calculated using the previous month's release data based on the cow-milk-child pathway. Should a dairy be located within the 1 mrem isodose line the sa'...piing and analysis frequency for radiciodine will be modified to semimonthly for the month following the month for which the calculation was made. A similar sampling program will be for the 2 mrem isodose line except on a weekly frequency.
- b. Monthly updates of the current year's annual accumulated calculated thyroid ib crem isodose lines based on the
" goat-nilk-child and the cow-milk-child pathway will be done. Should the isodose line extend beyond the site boundary, a survey to locate goats or cows within the isodose line will be carried out within 30 days. Should goats or cows be observed, efforts to obtain samples from the owners of the animals will be put forth. If samples are obtainable, a sampling program similar to "a" above will be initiated. If samples are unobtainable, the annual report will document such and include the calculated doses.
- c. Monthly updates of an annual 15 mrem isadose line (using release data and maximum organ dose in each of the 16 sectors) based on the grass-cattle-beef-man pathway will be done. Should the isodose line extend beyond the site boundary, sampling and analyses will be modified to monthly for the current year.
- d. Samples will be taken from the Environmental Laboratory well.
- e. Radiciodine analyses will be done by chemical separation.
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'PPTELEDYllE ISOTOPES ABSTRACTS OF Tile ANALYTICAL PROCEDURES The following are abstracts of the radionuclide separation, puri-fication, and measurement techniques used by Teledyne Isotopes. These tech-niques have been developed to meet the detection sensitivities (Table 3) and associated accuracies required by the nuclear industry in compliance with technical specifications.
Air Particulates Gross Beta _ Transfer filter to a 2-inch dianeter planchet and assay in a Beck-man Sharp Wide Beta 11 automatic alpha / beta counter. Gamma Isotopic Analysis Composite tation filters are combined quarterly and radioassayed on a high resolution, high efficiency Ge(Li) detector. Radiogas Iodine-131 Two procedures are used for the analfsis of charcoal cartridges for iodine-131. METliOD 1. If the charcoal used is NOT impregnated with elemental iodine, iodide carrier is added and leachbd with Na0li The stable iodide and 1-131 is then stripped and extracted as iodine and precipitated as PdI2' mounted on a nylon planchet, and assayed by low level beta counting. METIIOD 2. If the charcoal used in the filters is impregnated with iodine, the chemical yield of the distillation procedure cannot be determined and the samples are analyzed by high resolution gamma spectrometry (Ge(Li)) by integration of the I-131 photopeak. Direct Radiatica (TLD) CaSO 4
- Dy thermoluminescent dosimeter packets consisting of the four-area RadiGuard badge are placed at monitoring locations. At the end of the monitoring period, the dosimeters are returned to Teledyne Isotopes for readout. Results are reported in mR for the collection period or mR/ collection time period.
Milk, Iodine-131 Stable iodide carrier ~is added to an aliquot of milk and the io-dide and I-131 is removed by anion exchange resin. The iodine is stripped 11
TTELEDYNE ISOTOPES with Na0li solution, treated with hydroxylamine hydrochloride and NANO3, and extracted into CllCl 3 as free iodine (I,) . It is then back extracted Into NallS03 solution and precipitated as PdI2 . The precipitate is mounted on a nylon planchet for low level beta counting. Strontium-89/ Strontium-90_ To 1 liter of milk add strontium carrier and TCA solution. Stir solution and allow precipitation to settle overnight. Filter, wash, and dis-card precipit;':. To the filtrate and oxalic acid, followed by Nil40!! until the solution is alkaline in order to precipitate calcita and strontium oxalates. This precipitate is filtered and ashed, and the ash is dissolved in nitric acid. Fe(0!!)3 scavenges are performed and stable yttrium carrier added, followed by a 5 to 7 day period for Y-90 ingrowth. The yttrium is precipi-tated as the hydroxide, redissolved and precipitated as the oxalate, and then mounted on a nylon planchet and counted in a low level beta counter. The strontiun is precipitated from the sample as SrC0 , mounted on a nylon planchet and counted in a low level beta counter for dr-89 and/or the Y-90 ingrowth. Gamma Isotopic Analysis Transfer 1 liter of milk to a 1-liter wrap-around Marinelli count-ing beaker and radioassay on a high resolution Ge(Li) detector. Well Water Tritium An aliquot of sample is converted to hydrogen gas by reduction in a hot zine furnace, mixed with met:aane counting gas and radioassayed utilizing an internal low level gas proportional counter. Very low 1cvels of activity can be detected due to the sophistication of the counting equipment, the electronics, and the shielding.
' Gamma Isotopic Analysis One liter of sample is transferred to a 1-liter Marinelli wrap-cround counting beaker and counted on a Ge(Li) detector.
Surface b'ater Tritium An aliquot of sample is converted to hydrogen by gas reduction in a hot :ine furnace, mixed with methane counting gas and is radioassayed util-i ing an internal low level gas proportional counter. Very low levels of ac-tivity can be detected due to the sophistication of the counting equipment, the electronics, and the shiciding. 12
B 8
'WTELEDYNE ISOTOPES Gamma Isotopic Analysis One liter of sample is transferred to a 1-liter Marinelli wrap-around counting beaker and counted on a Ge(Li) detector.
Fish Gamma Isotopic Analysis Remove the edible portions by filleting the fish and homogeni:ing in a high speed blender or dice into small pieces. Transfer the blended or diced portions to a 300 m1 bottic, record the weight, and radioassay on a hi Bh resolution Ge(L1) detector. Vegetation / Terrestrial (Green Leafy) Gamna Isotopic Analysis Completely fill a 300 m1 bottle with a green leafy vegetation. Record sample weight and radioassay on a Ge(Li) detector. Calculate the ob-served ganma emitting nuclides in pCi/gm wet. Soil and Sediment / Silt Gamma Isotopic Analysis Fill a 300 m1 bottle with soil, record the sample weight, and radioassay on a high resolution Ge(Li) detector. Strontium-89/Stronium-90 Weigh an aliquot of dry soil or sediment and transfer to a 1-liter beaker. Add strontium carrier and concentrated ilNO 3; then heat the sample for 2 hours to leach strontium from the soil. Filter the resulting solution, wash the precipitation with hot water, and discard the residue. Evaporate the filtrate to a few milliliters and add Nil 0ll4 until alkaline. Add' sat-urated Na3CO solution to precipitate SrC03 , and centrifuge and discard supernate! dissolve precipitate in 11N03 and evaporate to almost dryness. Proceed with Sr-S9, Sr-90 purificaticn procedures using fuming nitric acid, an Fe(0!!)3 scavenge, etc. 13
TTELEDYNE ISOTCPES ABSTRACTS OF Tl!E RADI0 ASSAY PROCEDURES The lower limits of detection for radionuclides by the radioassay procedures are listed in Tabic 3. Gross Beta Evaporated or solid phase aliquots are transferred to a 2-inch diameter stainters steel planchet and counted in a low level gas flow thin window Geiger counter. Ge(Li) Gtema spectrometry Based upon the specific media to be analyzed, sampics are counted in 1-liter vrap-around Marinelli type containers, 300 m1 bottles or 2-inch filter paper source geometries on 55 cc Ge(Li) detectors coupled to multi-channel spectrometers. All retultant spectra are maintained on magnetic tape for computer analysis and for future reference. Strontium-89/ Strontium-90, After decomposition and radiochemical separation and purfication, mounts of Sr-89 and Y-90 are counted in a low level gas flow thin window Geiger counter. Nuclide purity is established by counting over at least one half-life for Y-90 and by multiple counts for Sr=-89. Tritium An aliquot of distilled sampic'is added to scintillation cocktail and counted in a liquid scintillation spectrotu;ter, or converted to the gaseous phase and counted in an internal gas proportional counter depending on sensitivity requirements. Iodine-131 Mounts are counted in a low level gas flow thin window Geiger coun-ter. Nuclide purity is established by counting over at least one half-life. Positive detections of I-131 are also verified by counting on a beta-gamma coincidence spectrometer. Rare Gases N Purified fractions are assayed in internal gas proportional counters. 14
TTELEDYNE ISOTOPES TABLE 3 LOWER LIMITS OF DETECTION
***LLD 6 Sampled Volume Sample Analysis Reporting Units Required
- 1. Airborne Particulate Gross Alpha 2.5x10[3 pCi/m 3 125 m Gross Beta 7.6 x 10 pCi/m Ge(L1) Gamma Isotopic See Table 3.2 1625 m 3
- 2. Airborne Iodine Charcoal Cargridge I-131 **2.4 x 10' pCi/m 125 m
- 3. Direct Radiation TLD Environmental Badge 2 mR i 2 mR
- 4. Milk Sr-90 0.8 pCi/1 4 liters 1-131 by Chemical Separation 0.5 pCi/1 Sc(Li) Gamma Isotopic (Cs-137) See Table,3.2 Cs-137 Chemical Separation 3 pCi/1
- 5. Well Water Gross Alpha 0.5 pCi/1 2 liters Gross Beta 0.5 pCi/1 Tritium (gas count) 100 pCi/1 Ge(Li) Gamma Isotopic See Table 3.2
- 6. Surface Water Gross Beta 0.5 pCi/1 2 liters Tritium (gas count) 100 pCi/1 Ge(Li) Gamma Isotopic See Table 3.2
- 7. Fish: Flesh Gross Beta plue K-40 0.1 pCi/gm wet (2) 1 Kg Ge(Li) Gamma Isotopic See Table 3.2 Sr-89 *0.8 pCi/gm Sr-90 *0.5 pCi/gm
- 8. Vegetation (corn, Icaf, food, terrestrial, aquatic)
Ge(Li) Gamma Isotopic See Tabic 3.2 (2) 1 Kg Sr-89 0.8 pCi/gm Sr-90 0.5 pCi/gm
- 9. Soil Ge(Li) Gamma Isotopic See Table 3.2 1 Kg
- 10. Silt Ge(Li) Gamma Isotopic See Tabic 3.2 (2) 1 Kg d -89 0.8 pCi/gm Sr-90 0.5 pCi/gm 15
TTELEDYNE ISOTOPES TABLE 3.2 LOWER LIMITS OF DETECTION BY llIGli RESOLUTION Ge(Li) GNNA SPELTROSCOPY ENVIRONMENTAL SM!PLES ifater (1 liter) Soil G Vegetation Filters Nuclide pCi/1 (400 gm) pCi/r,m pCi/ total filter Be-/ SE401 2E-01 2E+01 K-40 2E+02 SE-01 SE+01 Cr-51 SE+01 2E-01 SE+01 Mn-54 8 2E-02 2 Co-58 8 , 2E-02 2 Fe-59 1E+01 4E-02 3 Co-60 8 2E-02 2 Zr-95 IE+01 4E-02 3 Ru-103 8 2E-02 2 Ru-106 8E+01 2E-01 8E+01 10 3E-02 2 1-131 9 2E-02 2 Cs-134 9 2E-02 2 Cs-137 Ba-140 3E+01 SE-02 6 La-410 2E+01 4E-02 2E+01 2E+01 4E-02 3 Cc-141 8E+01 2E 01 2E+01 Cc-144 6E+01 1E-01 1E+01 Ra-226 1E+01 2E-02 1E+01 Th-228 16
TTELED7NE ISOTOPES TAB 1I 3 LOWER LIMITS OF DETECTION
- Detection in limits as stated are per gram of ashed material. The actual detection limits in pCi/gm (wet) will vary by a factor of 10-100, depending on the wet versus ash weight factor.
** Analysis by chemical separation and beta counting of PdI2 The non-impregnated with elemental iodine charcoal cartridges must be used when chemical separation is required.
*** The LLD values listed in this table are at the mid-collection time. Samples must be counted within one half-life after co11cetion for these LLD values to be applicabic.
.66 e LLD =
, (Ref. 10) 2.22 (V)(c)(DF) 2.22 (V)(c)(DF)(Y) where B= background = cpm at = counting time = min.
2.22 = conversion factor = V= volume or weight of sample c= counter efficiency , DF = decay factor of the radionuclide from mid-collection to mid-count time Y= chemical yield LLD = lower limit of detection at the mid-collection time 17
TTELEDYNE ISO 7 OPES QUALITY CONTROL OF ANALYS S Important elements of the Quality Control Program at Teledyne Iso-topes are (1) Sample and Analysis Control and (2) Laboratory Procedure Con-trol. Details of these elements of the Quality Control Program are provided in separate documents and issued to our customers on a proprietary basis.
- 1. Sample and Analysis Control All sampics arriving at our laboratories are assigned a T.I. code number and are processed by the procedures described in our " Quality Control Manual" (Ref. 9 ) . Copy No. 14, latest revision date of 01/15/78, of the manual has been issued to the Virginia Electric and Power Company.
The Quality Control Manual contains (a) Specifications for the handling and processink of sampics and the documentation required for calculating and reporting the results of the analysis. (b) The organi::ation chart of the Environmental Analycis Group at Tcledyne Isotopes and the resumes of supervisory personnel. (c) References to the routine stability checks of backgrounds and standards requited for the calibration of the counting instru-ments used for radioassaying of samples. (d) References to the operational checks on blanks, spikes, splits, and cross checks of samples. (c) A section on accuracy checks containing summaries of inter-comparison data with EPA cross check programs .
- 2. Laboratory Procedure Control Approved laboratory procedures are followed at Teledyne Isotopes for the vnalysis of each sx.ples media for speedic radionuclides. Copies of the following procedures were issued to the Virginia Electric and Power Company: Determination cf Radiostrontium, Detemination of Radioiodine,
- Detection of Gross Alpha and/or Gross Beta, Detemination of Gamma Spectra, Determination of Tritium.
18
'FPTELEDYNE ISOTOPES SUFNARY OF QUARTERLY RESULTS AND DISCUESION EXCEPTIONS AND SPECIAL EVENTS (JANUARY 1,1978 - MARCll 31, 1978)
EXCEPTIONS,, The operational program for the North Anna Power Station requires the weekly analysis of I-131 in charcoal filters with air volumes of approx-imately 125 cubic neters and sensitivitics cf less than 0.024 pC1/Cu. M. (see Table 1 in the Description of the Program). During the preoperational program r.ost of the charcoal filters were impregnated with elecental iodine necessitating the analysis for 1-131 by high resolution gamua spectrometry. By this procedure the limits of detection were lower than the 0.025 pCi/Cu. M. Ilowever, the collection periods and the volumes were at least 10 times longer. In addition, the activities were calculated to the end of the co11cetion time. For the operational program, 125 cubic meters of air and calculation to mid-collection were specified to insure against exceeding the sensitivity of 0.025 pCi/Cu. M. This requires the chemical separation of iodine and low level beta counting of the sample --a procedure possible only with noniodine im-pregnated charcoal. By using nonimpregnated charec 1 and processing o'y chemical separation, the limits of detection are lower than 0.01 pCi/Cu. M. for 125 cubic meters of air and calculation to mid-collection , time and counting within 8 days after collection. It is recommended that nonimpregnated with elemental iodine charcoal cartridges be used and chemical separation,be employed to insure compliance with the L.T. 0.025 pCi/Cu. M. specification. SPECIAL EVENTS On Match 14, 1978 the Peopics Republic of China detonated an atmospheric nuclear device at the Lop Nor atomic test site. The reported yield of this nuclear device was approximately 10 kilotons. Ti e operational program for the site was implemented in anticipation of init ial criticality of Unit 2. , 19-A
'FTELEDYN'I ISOTOPES t >
SUMMARY
OF QUARTERLY RESULTS AND DISCUSSION EXCEPTIONS AND SPECIAL EVENTS (APRIL 1,1978 - JUNE 30,1978) EXCEPTIONS The use of stabic iodine impregnated charcoal filters continued during the second quarter of 1978 necessitating radionssay by high resolu-tion gamma spectrometry for I-131. The lower sensitivity ga==a spectremetry preclude' its use and requires the highe,r sensitivity of chemical separation of iodins and the use of non-impregnated charcoal filters. '!on-impregnated charcoal filters are on order by Vepco and will be used when received. SPECIAL EVENTS On April 5, 1978 the operating license for the North Anna Power Station Unit I was granted and the operating phase of the radiological en-vironmental monitoring program is in effect.
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TTELEDYNE ISOTOPES
SUMMARY
PF QUARTERLY RESULTS AND DISCUSSION EXCEITIONS AND SPECIAL EVENTS (JULY 1,1978-SEPTEMBER 30, 1978) EXCEPTIONS Charcoal filters not impregnated with stable iodine were phased into the NAPS operations beginning August 1, 1978. The use of these charcoal filters permits the analysis for I-131 by the more sensitive radiochemical analytical procedure and the limits of detection are lower than the specification of L.T. 0.025 pC1/Cu.ft. SPECI AL EVENTS No unusual events occurred during the third quarter of 1978 that could be interpreted as possibly related to the operations of the North Anna Power Station. The last atmospheric nuclear test in the northern hemisphere was conducted on March 14, 1978 by the Peoples Republic of China. Most of the short lived and early fallout in North Anna already was detected prior to this 3rd quarter of 1978. 19-C
TTELEDYNE ISOTOPES SUhMARY OF QUARTERLY RESULTS AND DISCUSSION AIRBORNE EXPOSURE PATliWAY (JANUARY 1,1978 - MARCli 31, 1978) AIR PARTICULATE Filters were collected weekly from stations 01, 03, 05, 07, 21, 22, 23 and 24 and analyzed as required in Table 1. In addition, samples from stations 02, 04 and OS were collected and analyzed even though not required in the radiological monitoring program (Ref. 7) Summarized in Table 4 are the radionuclides detected on the air parti-culate filters. Gross beta and Ce-144 activities are plotted on Figure 3. The gross beta activity increased sharply during the week of 03/21-03/28, the result of the atmospheric nuclear detonation on March 14, 1978 by the Peoples Republic of China. Gamma analysis of the quarterly composite of the air particulate filters from each station showed Zr-95, Ru-103, Cs-137, Cc-141 and Ce-144 at levels slightly higher than during the fourth quarter of 1977. The small in-crease of Ce-144 is shown on Figure 3. The radionuclides detected as air parti-culates are fission products attributed to fallout from the Chinese atmospheric nuclear tests during 1976, 1977 and on March 14, 1978. AIR RADI0 IODINE Charcoal filters were collected fron. stations 03, 21, 23 and 24 as specified in Tabla 1. In addition charcoal filters were collected at stations 01, 02, 04', 05, 06, 07 and 22 providing additional analysis not required by the ERMP. As discussed under " Exceptions", the limits of det^ction for I-131 ex-ceeded the FDL of 0.025 pCi/Cu. M. because of the use of elemental icdine impregnated charcoal. Recommendations have been made to correct this deficiency. Iodine-131 was detected in nine of the eleven charcoal filters exposed during the week of 03/21-03/28 at a mean level of 0.07 pCi/Cu M. See the summary table for I-131 in charcoal filters in Appendix "A" for the compilation of data " and see Table 4 in this section for an overall summary and comperison. SOIL Samples were not scheduled for analyses during this quarter. Analyses of soil samples are required' once every three years at stations 01, 03, 04, 05, 06, 07, 21, 22, 23 and 24. These stations are also collection sites for air particulate sampics with the exception of stations 04 and 06. PRECIPITATION Sample analysis are not required as a part of the environmental monitoring program for the North Anna Power Station environs. The analysis of precipitation samples for gross beta activity at Station 01 are additional analysis and provide information useful for interpreting pathways for airborne exposures to radionuclides. 20 -A
NTELEDYNE ISOTOPES SUSSIARY OF QUARTERLY RESULTS AND DISCUSSION AIRBORNE EXPOSURE PATHWAY (APRIL 1,1978 - JUNE 30,1978) AIR PARTICULATE Filters were collected weekly from Stations 01 through 07 and 21 through 24 and analyzed as specified in Table 1. Summrcized in Tabic 4 are the radionuclides detected on the air particulate filters (quarterly averages). Gross beta activity and the shor cr-lived gamma isotopes ~ (Ru-103, Ir-95, I-131) decreased from the levels monitored during the first quarter. The longer-lived radionuclides (Cs-137 and Cc-144) from the Chinese atmospheric nuclear tests of 1977 and March 14, 1978 were monitored at higher levels compared to the first quarter measurements. Plotted on Figure 3 are the gross beta activities and the Cc-144 activity monitored on air particulate filters. AIR RADIOI0 DINE Charcoal filters were collected weekly from Stations 01 through 07 and 21 through 24 and analyzed for I-131. No I-131 was detected during the second quarter of 1978 compared to nine positive readings during the first quarter (see Tabic 4). PRECIPITATION Rainfall samples were collected from Station 01 (Onsite) and are measured for inches of rainfall and then monitored for gross beta and tritium. The deposition of gross beta emitting was 1.4 nCi/sq.m. during the second quarter compared to 2.2 nCi/sq.m. during the first quarter. 20-B
T TELEDYNE ISOTOPES SUStARY OF QUARTERLY RESULTS AND DISCUSSION AIRBORNE EXPOSURE PATIIWAY (JULY 1,1978-SEPTD!BER 30, 1978) AIR PARTICULATE Summarized in Table 4 are the radionuclides detected on the air particulate filters. During this third quarter 1978 the gross beta activity decreased progressively from July through September (See Figure 3). Ce-144 also decreased to 0.0089 pCi/Cu.M., the lowest quarterly activity for 1978. From these results the airborne exposure at NAPS was nominal during the 3rd quarter of 1978. AIR RADIO 10 DINE No detections of I-131 were monitored during the 3rd quarter of 1978 at NAPS. Starting August 1, the non-impregnated stabig iodine cartridges were used permitting analysis by radiochemical procedures ano resulting in a lower limit of detection of L.T. 0.024 pCi/Cu.M. Since this da.e we are confident no sources of 'I-131 higher than the LLD were detected. PRECIPITATION Rainfall sample were collected during the 3rd quarter. The gross beta activity is consistent with activities during the 1st and 2nd quarters. O G 20-C
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TABLE 4 RAD 101DGICAL ENVIRONMEhTAL HI*1TORING PROGRAM StANARY TTELEL7(NE ISOTOPES Airborne Exposure Pathway VIRGINIA ELECTRIC AND POWER COMPANY NCRill ANNA POWER STATION HINERA1.. VIRGINI A 23117 CONTftCL IDCATIONS REPORTING ALL INDICATOR SAMPLES IDCATION WI111 IIIGIEST MEAN PERIOD FATHWAY OR ANAt.YSIS DETECTION RANGE FRACTION HEAN RANCE FRACTION _ RANGE FRACTION STATION MEAN SAMPl.E TYPE NO. 1DWER LIMIT MEAN 0.17 0.01-1.6 140/143 S7 0.22 0.04-1.6 26/26 0.10 0.03 0.13 11/13 12/27/77-03/28/78 Air Parti- Gross beta 145 0.0076 0.14 0.06-0.27 13/13 03/28/78-06/27/78 143 0.13 0,01-0.31 143/143 6, 23 0.16 0.07 0.3 26/26 culates 0.067 0.03-0.11 14/14 06/27/78-10/03/78 154 0.05 0.01-0.15 152/154 23 0.070 0.03-0.12 14/14 pci/cu.m. nominal air 12/27/77-voluma Gross beta 0.0076 125 cu.r.. 2 qdattet chly pC1/cu.a. Sr-89 11 04Ud3 03/fB/78e06/27/78 nominal mit volume = 25cu.m. Sr-90 11 0.000fl , gtg g U pC1/cu.m. Gamma . 11 - Isotopic d208 0812;0.09 16/11 fi ' 0:09 1/1 0 0f a 1/1 1i/i7/77-0s/28/7s Be-7 - 0.012 dall s 1/1 03/is/18 4 6/27/78 dell d:df-D:is 10/11 ff dalk : 1/1 0.d5 0.d5-6.01 11/11 25 0.01 - 1/1 d.de - 1/1 06/27/78-1d/03/78 no ilnal air Volume a 1625cu.m. 12/21/77 Be-7 0.012 0.010 . 1/1 0.006 - 1/1 12/27/77 03/28/78 Zr-9$ . 0.0018 0.006 0.004 0.01 9/11 23
=0.003 - 0/1 03/28/78 06/27/78 0.00$ 0.003-0.006 8/11 22 0.006 - 1/1 LLD - 0/11 - - - - LLD -
0/1 06/27/78-10/03/78 1 12/27/77-Zr-95 0.0018 Stdtion 24 is the control lotiation -
TABLE 4 RAD 101DGICAL MIROMNTAL MON 11VRING PROGRAM EU'4%RY
- TTELEDYNE ISOTCPES Airsorne Exposure Pathway VIRGINIA ELECTRIC AND P0hT.R COMPANY NORT11 ANNA POWER CTATION MINERAL, VIRCINIA 23117 CON 11t0L LOCATIONS REPORTING ALL INDICATOR SSfPLES IDCATION WITil llIGl!EST MEAN FRACTION PERIOD PATira'AY OR ANALYSIS DETECTION RANGE ' FRACTION I MEAN '_ __ RANGE RANGE FRACTION STATION MEAN SAMPLE TYPE NO. LOWER L17 TIT MF.AN 02 0.021 - 1/1 Lf3 - 0/1 12/27/77-03/28/78 Air Parti- Ru-103 -
0.0012 0.014 0.01-0.02 9/11 - - - LID - 0/1 03/28/78-06/27/78 LID - 0/11 - 0/1 culates LLD - 0/11 - - - - LID - 06/27/78-10/03/78 (ccnt.) pC1/cu.m. 12/27/77-
'u-103 0.0012 23 0.023 -
1/1 LLD - 0/1 12/27/77-03/28/78 Ru-106 *- 0.049 0.019 0 016-0.023 2/11 1/1 LLD - 0/1 03/28/78-06/27/78 0.016 0.013-0.018 4/11 C5 0.018 -
- - LLD - 0/1 06/27/78-10/03/78 LLD -
0/11 - - ti 0.049 12/27/77 Ru-106 06 0.039 - 1/1 LID - 0/1 12/27/77 03/28/78 I-131 - 0.002 " 0.035 0.03-0.04 3/11 LLD - 0/1 03/28/78-06/27/78 LLD 0/11 - - - 1/1
- - LLD -
0/1 06/27/78-10/03/78 LLD - 0/11 - - 12/27/77-I-131 0.002** 23 0.0037 - 1/1 0.0023 - 1/1 12/27/77-03/28/78 Cs-137 - 0.0012 0.0024 0.002-0.004 7/11 0.003 - 1/1 03/28/78-06/27/78 C.0032 0.003-0.004 10/11 01 0.004 - 1/1 05 0.6018 - 1/1 0.0017 - Ill 06/27/78 10/03/78 0.0015 0.001-0.002 2/11 12/27/77-Cs-137 0.0012 Station 24 is the control location
** At t: e end of the collection period .'or a quarterly cumposite
TABLE 4 RADIO WGICAL ENVIRO.WINTAL MONITORING PROGRAM SUMMAR) TTELEMNE ISOTOPES Airborne Exposure Pathway VIRGINIA ELECTRIC AND POWER COMPANY NORT11 A W A power STATION MINERAL, VIRGINIA 2.M17 C0f(IROL LOCATIONS REPORTING IDCATION willi llICl!EST MEAN ANALYSIS DETECTION ALL INDICATOR SAMPLES RANCE FRACTION MEAN l RANCE FRACTION PERIOD j PAT 1thAY OR LOWER LIMIT MEAN RANGE FRACTION STATION MEM. SM:PLE TYPE NO. 07 0.037 - 1/1 LLD - 0/1 12/27/77-03/28/78 0.030 0.02-0.04 5/11 0/1 03/28/78-06/27/78 Air Parti- 8a-140 0.008 " 0/11 - - - - LLD - LLD culate - - - LLD - 0/1 06/27/78-10/03/78 (cont.) LLD - 0/11 - pCi/cu.a. 12/27/77-Ba-140 0.008** 03 0.016 - 1/1 LLD - 0/1 12/27/77-03/28/78 Ce-141 0.00'? 0.012 0.01-0.02 8/11
- - LLD - 0/1 03/28/78-06/27/78 LLD -
0/11 - - L - 0/1 06/27/78-10/M/78 LLD - 0/11 - 7- 12/27/77-Ce-141 0.0016 0.029 1/1 0 021 - 1/1 12/27/77-03/28/78 0.012 0.021 0.01-0.03 11/11 23 - 03/28/78-06/27/78 Ce-144 03 0.038 s - 1/1 0.027 - 1/1 0.030 0.02-0.04 10/11 0.009 - 1/1 06/27/78 10/03/78 0.009 0.06-0.01 3/11 05 G.011 - 1/1 12/27/77-Ce-144 0.012
** At the end of the collection period for a quarterly composite N
TABLE 4 RADIOLOGICAL ENVIRONMESTAL MONITORING PROCRAM SOS'ARY TTFIEDYNE ISOTOPES Airborne Exposure Pathway VIRGINIA ELECTRIC AND Tow.3 COMPANY NORT11 ANNA POWER STATION
- 41NERAL, VIRGINIA 23117 CONTROL LOCATIONS REPORTING DETECTION ALL INDICATOR SAMPLES LOCATION WIT 11 li!CllEST MEAN PAT 1tWAY OR ANALYSIS RANCE FRACTICN l'EAN RANCE FRACTION PERIOD NO. LOWLR LIMIT MEAN RANCE FRACTION STATION MEAN SO:PLE TYPE I-131 143 0.025* 0.070 0.04-0.12 9/143 23 0.12 - 1/13 D! - - 12/27/77 03/28/78 Air . . LLD - . 03/28/78-06/27/78 Radio- 143 0.3* LLD -
0/143 - - LLD 0/14 06/27/78 10/03/78 iodine 154 0.025" LLD - 0/154 - - - - pCi/cu.m. nominal air volume = 125 cu.m. I-131 12/27/77 IA EM-equipment malfunction
- Charcoal filters counted on Ge(L1) gama spectrometer and calculated from the end of collection period.
" Non iodine impregnated charcoal used from 08/01/78 and analyzed by radioche:nical separation.
Thus 99 of 154 samples meet the L.L.D. of 0.025 pel/Cu.M. t
f TABLE 4 RADIOwGICAL EhVIRONMrhTAL MONITORING PROGRAM StbNARY TTELEINNE ISOTOPES Airborne Exposure Pathway VIRGINIA ELECTRIC AND POWER COMPANT NORUt ANNA POWER STATION MINEPAL, VIRGINI A 23117 CONTROL IDCATIONS REPORTING ALL INDICATOR SAMPLES IDCATION WIT 11 IIIGHEST MEAN RANCE FRACTION PERIOD PATHWAY OR ANALYSIS DETECTIJN RANCE FRACTION MEAN NO. LOWER LIMIT MEAN RANGE FRACTION STATION MEAN SAMPLE TYPE Soil
- Sr-89 b.8 pCi/ga. dry Sr-90 0.S Gamma Isotopic K-4G - 0.2 Cs-137 - 0.02 Ra-226 - 0.1 Th-228 - 0.02
- Soil samples are analyzed once every three years 6 No analysis scheduled during Jan. 1-March 31, 1978 quarter.
No analysis scheduled during April 1 - June 30,1978 quarter. No analysis scheduled during July 1-September 30, 1978 quarter.
~
1
TABLE t TTELEDYNE ISOTOPES RADICIDGICAL ENVIRO'3: ENTAL MONITORING PROGRAM StBBMRY , Airborne Exposure Pathway VIRCINTA ELECTRIC AND POWER COMPANY NORTil ANNA POhER STATION MINERAL, VIRGINIA 23117 PA111WAY OR ANALYSIS DETECTION ALL INDICATOR SAMPLES LOCATION WIT!! HICl!EST MEAN CONTROL LOCATIONS REPORTING SAMPLE TYPE NO. LOWER LIttIT MEAN I.ANCE FRACTION STATION MEAN RANCE FRACTION MEAN RANCE FRACTION PERIOD
- Precipi- - 3 tation pCi/ liter Gross beta - 0.08 25 15-37 3/3
- Single enllection statici 01/01/78-03/31/78 inches of rain fall - - -
3.05 0.2-5.5 3/3 nC1/sq.m. Gross beta - - 2.2 0.08-3.2 3/3 pCi/ liter Gross beta 14 12-18 3/3
- Single collection station 04/01/78-06/30/78 inches of rainfall 4.1 2.9-5.0 -
nCi/sq.m. Gross beta 1.4 1.3-1.5 U pCi/ liter Cross beta 0.vS 23 13-41 3/3
- Single collection station 07/01/78.09/30/78 pCi/ liter H-3 100 110 -
1/1 Semiannual composite 01/01/78-06/30/78
- Samples collected from station 01
** Not required for the operational program
W TELIDYN3 ISOTOPES SthBRRY OF QUARTERLY RESULTS AND DISC 1 1N , DIRECT EXPOSURE PAT 11WAY (JANUARY 1,1978 - MARDI 31,1978) ENVIRON' ENTAL GA'BM DOSE Environmental G,r-~i Dose levels were conitored by TLD at stations 01, 03, 04, 05, 06, 07, 21, 22, 23 and 24 in accordance with the program in Table 1 (see RefcTence 7). In addition TLD measurements were obtained tt station 02. Stc=mri::cd in. Tabic 5 and 'on Figure 4 are the average g2==a exposure dose levels at the collection stations. No change in the average ga:ca dose has been observed from the p-evious three quarters - see the co=parison with the previous three quarters tables in Appendix "A". G 2S-A
TTELEDYNE ISOTOPES SU5 NARY OF QUARTERLY RESULTS AND DISCUSSION DIRECT EXPOSURE PAT!!WAY (APRIL 1,1978 - JUNE 30,1978) ENVIRONMENTAL GASMA DOSE Environmental gamma dose levels were monitored with TLD bad; .. at Stations 01 th ough 07 and 21 through 24 as outlined in Table 1. The average gamma dose during the second quarter is 0.30 mR/ day and is sum-mari:cd in Table S and plotted on Figure 4. The average gamma dose for the nine month period 09/10/77-06/27/78 is 0.25 mR/ day. The average of the fourth quarter 19 77 and the first and second quarter of 1978 gamma dose is 0.22 mR/ day compared to the corresponding 0.25 mR/ day for the nine month period. The high environmental dose during the second quarter 1978 could result frcm washdown and ground deposition of fission radionuclides from the March 14, 1978 atmospheric nuclear test by the Peoples Republic of China. 28-B
TTELEDYNE' ISOTOPES SIDNARY OF QUARTERLY RESULTS AND DISCUSSION DIRECT EXPOSURE PATHWAY (JULY 1,1978-SEPTEMBER 30, 1978) ENVIRON 5! ENTAL GASNA DOSE The average environmental gamma dose rate decreased to 0.19 mr/ day during the 3rd quarter of 1978, During the 2nd quarter the dose rate was the highest (0.30 mr/ day) since the 1st quarter of 1977. This high gamma dose during the 2nd quarter and sharp drop during the third quarter is in agreement with measure-ment's at other facilities in the north eastern section of the U.S. O 4 1 28-C
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a 1977 1978 1974 1980 1981
TABf2 5 RADIO!DGICAL ENVIRONMENTAL HONITORING PROGRAM StbNARY TTFI FrfYNE ISOTOPES Direct Exposuro P:sthway i VIRGINI A ELECTn!C AND pot.T.R C0f!PA T MATT 11 A ;;;A ITALR ST AT ION HINLRAL, VIRGINIA 23117 CONTROL IDCATIONS REPORTING ALL INDICATOR SAMPLES t4 CATION WIT!!It!GifEST MEAN
- RANCE ' FRACTION PERIOD PAT 1thAY OR ANALYSIS DETECTION STATION MEAN RANGE FRACTION MPRt LOhTR LIMIT MEAN RANCd TRACTION SV!Pl.E TYPE NO.
0.22 1/1 0.14 - 1/1 12/27/77.03/28/78 Gamma Dose 11 2mrt2mr 0.18 0.14 . 22 11/11 23 - 1/1 0.24 - 1/1 03/28/78 06/27/78 TLD 0.30 0.24-0.39 11/11 22 0.39 - mR/ day 11 06 0.25 - 1/2 0.16 1/1 06/27/78 09/26/78 f* 0.19 0.14-0.25 11/11 _ 12/27/77 Gama Dose Omrt2mr 1/1 0.19 - 1/1 09/20/77-06/27/78 0.25 0.19-0.32 11/11 06 0.32 - TLD Gamma Dose 11 mR/ day o Station 24 is the control location.
TTELEDYNE ISOTOPES SUIM\RY OF QUARTERLY RESULTS AND DISCUSSION WATERBORNE EXPOSURE PAT 1[WAY (JANUARY 1,1978 - MARCil 31, 1978) SURFACE WATER Sampics were collected from station 09, reservoir; from station 08, discharge cooling; and from station 11, North Anna River. These three samples were analyzed as outlined in Tabic 1 and the results are summarized in Tabic 6. Presented on Figure 5 is the tritiun activity frca station 08, the discharge cooling water. The tritium activity of 110 pCi/ liter is consistent with preoperational meagprements (see References 2 through 6). GROUND WATER s Ground water (well water) samples were collected at staticn IA, the Envaronmental Laboratory Well and analy:cd for tritium and gccma emitting nuclides. All activities in ground water were below the limits of detection and the results are sur.tmarized in Table 6. AQUATIC SEDISENT AND S!!0 RELINE SOIL Samples were collected from station 08, near the discharge cooling water for the NAPS, from station 09 at the reservoir and from station 11, the North Anna River. In addition, a soil sample was collected in the vicinity of station 09, the reservoir. Sediment and shoreline soils were analyzed for gamma emitting radio-nuclides and the results are tabulated in Appendix "A" and summarized in Tabic 6. Usual gamma emitting radionuclidas in sediments are K-40, Cs-137, Ra-226 and Th-228, and the levels of activity are of the same magnitude as monitored during the preoperational program. 31-A
t TTELEDYNE ISOTOPES
SUMMARY
OF QUARTERLY RESULTS AND DISCUSSION WATERBORNE EXPOSURE PATIlWAY (APRIL 1,1978 - JUNE 30,1978) SURFACE WATER Sampics collected from the reservoir (Station 09), the discharge cooling (Station 08), and the North Anna River (Station 11) were analy:ed for 11-3, gamma isotopic, I-131, Sr-89, and Sr-90. The program summary for these radionuclides is presented in Table 6 and the H-3 level in the dis-charge cooling is plotted on Figure 5. All radionuclides are at or below the environmental preoperational levcis. , GROUND WATER Samples were collected at the Environmental Laboratory Well (Station IA) and analyzed for 11-3, gamma isotcpic, Sr-89 and Sr-90. All radionuclides in these samples remained at or below the limits of detection and the results are summarized in Table 6. C 4 31-B
TTELEif/flE ISOTOPES
SUMMARY
OF QUARTERLY RESULTS AND DISCUSSION WATERBORNE EXPOSURE PATHWAY fJULY 1, 1978-SEPTEMBER 30, 1978) SURFACE WATER Sampics collected frem stations 03,09, and 11 were analyzed for I-131, 11-3 and gamma isotopes. The H-3 1cyc1 at Station 08, the Surface Water discharge cooling, increased to 700 pCi/ liter the highest activity monitored at this location (see Figure S). At Station 11, the North Anna River Station, the H-3 acti'rity was 870 pCi/ liter and at Station 09, the Reservoir Station, the H-3 activity was 420 pei/ liter, These 11-3 activities are greater than nonitored for the previous quarters of 1978 and could be the result of releases, subject to verification, from the NAPS. No I-131 or gamma emitting nuclides were detected in surface water samples inferring that possible releases from NAPS were nominal and non-detectable. CROUND WATER Sampics collected at the Environmental Well (Station 1A) contains no radioactivities of H-3 or gamma emitters above the limits of detection. The results are summarized in Table 6. KUATIC SEDIMENT AND SHORELINE SOIL The aquatic sediment samples and shoreline sampics from the vicinity of station 09 were monitored for gamma emitting radionuclides and Sr-89,Sr-90. Only radionuclides characteristic of sediment and soil were detected and the activity levels were in the same oeder of magnitude as observed in previous years. No radionuclides attributed to NAPS were detected. 31-C
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TABLE 6 RAD 101DGICAL ENVIRCh?! ENTAL MONITORING PROGRAM SLNMARY - Waterborne Exposure Pathway Surface Water VIRGINIA ELECTRIC AND POWLR C4fPANY NORT11 ANNA POWER STATION MINERAL, VIRGINI A 23117 CONTROL LCCATIONS REPORTING ALL INDICATOR SAMPLES LOCATION WITil !!!GitEST MEAN
- FRACTION PERIOD PATl!WAY OR ANALY SIS DLTECTION RANCE FRACTION }"%N RANGE RANGE FRACTION STATION ttEAN SA"PLE TYPE NO. LOWER LDf!T MSAN Single Station 01/01/78-03/31/78 Discharge 1-131 3 0.5 LLD - 0/3 04/01/78-06/30/78 3 LLD - 0/3 07/01/73-09/30/78 Coo 11 2 p/3 Station 3 LLD -
OS . 01/01/78 pCi/ liter I-131 0.5 Single Station 01/01/78-03/31/78 H-3 1 100 110 - 1/1 04/01/78-06/30/78 1 100 LLD .- 0/1 07/01/78-09/30/78 1 100 700 - 1/1 01/01/78 11 - 3 100 Single Station 01/01/78-03/31/78 Table 3 LLD - 0/3 04/01/78-06/30/78 0 Gamma 3 3 Table 3 LLD - 0/3 07/01/78-09/30/78 Isotopic 3 Table 3 LLD - 0/3 Gamma 01/01/78 Isotopic Table 3 3 0.5 LLD - 0/3 Single Station 01/01/78-03/31/78 Reservoir I-121 04/01/78-06/30/78 Station 3 LLD - 0/3 07/01/78 09/30/78 09 3 LLD - 0/3 pCi/ liter - 01/01/78 1-131 0.5 H-3 1 100 LLD - 0/1 Single Station 01/01/78-03/31/78 100 380 - 1/1 04/01 78-06/30/78 1 100 420 - 1/1 07/01 78-09/30/78 01/01/78
1 TABLE 6 RADIOLOGICAL ENVIRONMENTAL HONITORING PROGRAM SINMARY WTELEINNE ISOTOPES Waterborne Exposure Pathway VIRGINIA ELECTRIC AND POWER COMPANY NOR111 ANNA POWER STATION MISLRAL, VIRGINIA 23117 CONTROL IDCATIONS REPORTING IDCATION W1DillIGilEST MEl.N PATiltlAY OR ANALYSIS DETECTION ALL INDICATOR SAMPLES RANGE FRACTION STATION MEAN RANGE FRACTION MEAN RANG _If ' _FRA_CTION
' PERIOD !_
TYPE NO. LOWER LIMIT MEAN SAMPLE 01/01/78-03/31/78 Table 3 LLD - 0/3 Single Station Reservoir Gamma 3 04/01/78-06/30/78 Station Isotopic 3 LLD - 0/3 07/01/78 09/30/78 09 3 LLD 0/3 pCi/ liter Gamma 01/01/78 Isotopic Table 3 Single Station 01/01/78-03/31/78 100 LLD - 0/1 North Anna 11-3 1 04/01/78-06/30/78 River 100 - 1/1 1 07/01/78-09/30/78 Station 1 870 - 1/1 11 01/01/78-pCi/ liter 11- 3 100 U 01/01/78-03/31/78 0/1 Single Station Gamma 1 Table 3 LLD - 04/01/78-06/30/78 Isotopic 1 Table 3 LLD - 0/1 1 Table 3 LLD - 0/1 07/01/78-09/30/78 01/01/78-Ganma Table 3 Lotopic Station 08 and 09 LLD 0/2 04/01/78-06/30/78 Surface Sr-89* 2 5 LLD - 0/2 Water pCi/ liter LLD - 0/2 STATION 08 and 09 LLD 0/2 04/01/78 06/30/78 Sr-90* 2 1
- Required only on the second quarter composite of Stations 08 and 09.
=
TABLE 6 RAD 101DGICAL ENVIRONMEhiAL MONITORING PROGRAM SLStARY - TTELE0YNE ISOTOPES Aquatic Exposure Pathway Station 01 A VIRGINIA ELECTRIC AND POWER COMPANY NORTil ANNA PCWER STATION MINERAL, VIRGINIA 23117 CONTROL LOCATICNS REPORTISt ALL INDICATOR SAMPLES LOCATION WIT 11 !!!Gl!EST MEAN RANCE FRACTION PERIOD PATithAY OR ANALYSIS DETLCTION STATION MEAN RANCE FRACTION MEAN LOWER LIMIT MEAN RANCE FRACTION SAMPLE TYPE NO. 03/78 100 LLD - 0/1 Single Station 09/78 Well Water H-3 1 0/1 Single Station LLD - pCi/Ilter H-3 100 03/78 LLD 0/1 Single Station 06/78 Gama 1 Th le 3 - n v Isotopic LLD - 0/1 09/78 LLD - 0/1 Gema Table 3 Isotopic 0 06/78 Single Station Sr-89I *) LLD 0/1 1 S 06/78 LLD - 1/1 Single Station . Sr-90(') 1 1 (a) Second quarter only.
TABLE 6 TTELEDYNE ISOTOPES RAD 10 LOGICAL ENVIRONMENTAL MONITORING PROGRAM StBNARY Waterborne Exposure Pathway VIRGIN!A ELECTRIC AND POW R COMPANY NORTil ANN.* POWER STATION MINLRAL, VIRCIN!A 23117 PAllikAY OR ANALYSIS DETECTION ALL INDICATOR SAMPLES IDCATION WITil li!QtEST MEAN CONTROL IDCATIONS REPORTING-SAMPt.E 1YPE NC. LOWER LIMIT MEAN RANGE FRACTION STATION MEAN RANCE FRACTION MEAN RANGE FRACTION PEAIOD Sediment / Camma 3 - - Sitt Isotopic pCi/g:n. dry K-40 - 0.5 17 6-44 2/3 08 44 1/1 5.7 1/1 03/78 0.5 8 3-17 3/3 11 17 3.0 1/2 - 1/1 09/78 K-40 Cs-137 - 0.02 0.08 0.05-0.12 2/3 11 0.12 - 1/1 0.05 - 1/1 03/78 0.35 - 1/3 09 0.35 - 1/1 0.35 - 1/1 09/78
- u. =
Cs-137 aa-226 - 0.1 1.0 9.7-1.4 2/3 08 ' 1.4 - 1/1 0.65 1/1 0.1 LLD 03/78 0/3 - - - - 09/78 Ra-226 Th-228 - 0.02 0. 7.; 0.53-0.90 3/3 08 0.90 1/1 0.53 03/78 1/1 0.02 0.79 - 1/3 08 0.79 - 1/1 LLD - 0/1 09/78
- Sr-89 .3 1.0 LLD -
0/p - LLD 03,09/78 1/1 - 0/1
- Sr-90 '3 0.08 0.06 -
1/3 09 0.06 - 1/1 Same as highest 03,09/78
- Composite -
S1ATION 09 is the control location
RADIOLOGICAL ENVIRONMENTAL MONI1DRING PROGRAM SL*HARY TTELEDYNE IScrrOPES . VIRGINI A Ef.ECTRIC AND POWER COMPANY NORT11 ANNA POWER STATION MINERAL, VIRGINIA 23117 CONT 110L LOCATIONS REPORTING ALL INDICATOR SAMPLES LOCATION WIT'.! IIIC1!EST MEAN PERIOD PA111MY OR ANALYSIS DETECTION FRACTION MEAN RANCE FRACTION RANGE FRACTION STATION MEAN RANGE SAMPLE TYPE NO. LMLR LIMIT MEAN Soii from Gamma - - Shoreline Isotopic 1 pCi/gm. dry 7.3 1/1 Single location - Station 09 03/78 K-40 - 0.5 - 09/78 0.5 4.6 - 1/1 Single location - Station 09 K-40 0/1 Single location - Station 09 03/78 Cs-137 - 0.02 LLD - 0.23 Single location . Statten 09 09/78 0.02 - 1/1 U Cs-137 0/1 Single location - Station 09 03/78 Ra-226 - 0.1 LLD - 2.4 Single location - Station 09 09/78 0.1 - 1/1 R2-276 Single location - Station 09 03/78 Th-228 - 0.02 0.26 - 1/1 1.6 Single location - Station 09 09/78 G.02 - 1/1 Single location - Station 09 03,09/78 0/1
*Sr-89 1 0.8 LLD -
Single location - Station 09 03,09/76
*Sr-90 1 0.05 LLD -
0/1
- Composite
TTELEDYNE . ISOTOPES SUFB?ARY OF QUARTERLY PISULTS AND DISCUSSION INGESTION EXPOSURE PA111NAY (JAN11ARY 1,1978 - MAROI 31,1978 _ MILK ,, low 1cvelsSamples of were collected from stations 12, 13 and 14 ored and monit Sr-89, Sr-90. 1-131 ( 0.5 pCi/ liter) for gamma emitting radio for in Appendix nuclides --i for "A" and surmiarized in Table 7.The levels of activity. e of detected activity in milk at Icvels consistent with preoperational valuesPresented on Fig FIS!! Samples were not scheduled for analysis during this quarter Analysis is required annually at the beginning of the season for gamma . isotope CREEN LEAFY VEGETATION specifications require analysis annually during harvest. . The Sample 4 38-A
T TELEDYNE ISOTOPES SU5 MARY OF QUARTERi,( RESULTS AND DISCUSSION INGESTION EXPOSURE PATHWAY (APRIL 1,1978 - JUNE 30,1978)
!! ILK Milk sampics are co11ceted from Stations 12,13, and 14 and moni-tored for low levels of I-131 (0.S pCi/ liter) for gamma isotopes and for Sr-89/Sr-90. Summari:cd in Table 7 are the average activities required under the program summary. No changes in the IcVels of activity were moni-tored during the second quarter of 197S compared to the first quarter of 1978.
FIS!! Fish samples are analy:cd annually for gamma isotopes at the beginning of the fishing season on samples from Stations 09 and 10. A singic detection of Cs-137 at 0.0S pCi/gm wet was made on one fish sample. No other garama emitters were monitored in fish samples from the North Anna Power Station environs. .
/
e 38-B
TTELEDYNE ISOTOPES
,1 Ik 6 ,' i
^
SEBIARY OF QUARTERLY RESULTS 'AND DISCUSSION INGESTION EXPOSURE PATilWAY (JULY 1,1978-SEPTDIBER 30, 1978) MILK Milk samples collected from stations 12, 13,-and 14 wert .nonitored for low levels of I-131, Sr-89,Sr-90 and gamma emitting radu,..uclides. No I-131
-as detected, consistent with no detections of I-131 in other pathways. Sr-89 was below the limits of detection indicating no recent releases of fission products to the environs. Sr-90 monitored at an average of 4.4 pei/ liter compares favorably with measurements during 1977 and the previous quarters of 1978.
Both K-40 and Cs-137 in milk during this quarcer are the same as the results monitored during the first two quarters of 1978. In summary, no radio-nuclides in nilk (ingestion pathway) were affected by any possible releases from NAPS. FISH No analysis were scheduled during the third quarter for fish samples. 1 G 38-C
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TABLE 7 TTEl.EDYNE ISOTOPES RADIO!DGICAL ENVIMMAL MONITORING PROGRAM
SUMMARY
Ingestion Exposure Pathway VIRGIN!A Ell'CTRIC AND POWER COMPANY NORIH ANNA POWER STATION MINLRAL. VIRGINIA 23117 PAH!WAY OR ANALYSIS DETECTION ALL INDICATOR SAMPLES IDCATION WIVI it!GI!EST MEAN CONTROL I4 CATIONS REPORTING SWlE TYPE NO. LOWER LIMIT MEAN RANGE FRACTION STATION MEAN RANGE FRACTION MEAN RANCE FRACTION
- PERIOD
- Mi!L 1 131 9 0.5 LLD - 0/9 . LLD .
LLD e 0/9 Jan..Feb.. Mar.'78 9 0.5 LLD - 0/9 - LLD . LLu - 0/9 April-June 1978 pCi/ liter 9 0.5 LLD - 0/9 - LLD 07/01/78- W 30/78 LLD - I-131 Sr-89 3 8 LLD 0/3 . LLD - 3 LLD LLD - 0/3 March 1978
. LLD 0/3 . . . LLD -
0/3 June 1978 3 LLD - 0/3 - LLD - LLD Sept.1978 0/3 S r-89 $ Sr-90 3 0.8 3.6 2.6-4.4 3/3 14 4.4 1/1 3.4 - 9/9 March 1978 3 - 3.2 2.7-3.9 3/3 13 3.9 - 1/1 3.0 - 9/9 June 1978 3 - 4.4 3.6-5.5 3/3 14 5.5 - 1/1 3.6 2.6-4.4 10/10 Sept.1978 Sr-90 K-40 9 200 1176 1070-1300 8/9 14 1247 1210-1300 3/3 1146 9 - 1087 843-1240 9/9 1127-1180 9/9 Jan.4far. 1978 Camma 12 1220 1180-1240 3/3 1203 1152-1242 9/9 April-June 1978 9 - 1108 1023-1213 9.9 12 1213 1200 1230 3/3 1132 843-1300 22/23 07/01/78-09/30/78 K-40 Cs-137 9 9 10.7 9.2-12.3 2/9 14 10.7 9.2 12.3 2/3 6.6 8.18.5 9/9 Jan. W r. 1978 9 - 11 7.7-16 G" " 4/D 14 16 - 1/3 8.8 6.6-9.6 8/11 April .fune 1978 9 - 10 9.9-11 3/9 14 11 9.8-11.6 2/3 10.0 *,. , 16 11/23, 07/01/78 09/30/78 Cs-137
- Previous three quarters
TTELEDYNE ISOTOPES RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM StM%RY VIRGINIA ELECTRIC AND POWER COMPANY NORTil ANNA POWER STATION ' MINERAL. VIRGINTA 23117 PATilWAY OR ANALYSIS DETECT!CN ALL INDICATOR SAMPLES LOCATION Willi llIG11EST MEAN CONTROL LOCATIONS REPORTING SAMPLE TYPE NO. LOWrR LIMIT MEAN RANCE FRACTION STATION MEAN RANCE FRACTION MEAN RANCE FRACTION PERIOD Fish Gamma 2 April 1978 pCl/gm wet K-40 - 0.5 LLD - 0/2 - - - - LIS - 0/1 Cs-137 - 0.02 0.05 - 1/2 - - - - 0,05 - 1/1 April 1978 2 Food /Carden Gamma 2 - - - - Crops (pC1/gm wet) BF-7 0.2 0.90 0.4 1.4 2/2 Sept. 1978 K-40 0.5 5.74 5.7-5.8 2/2 Sept. 1978 Cs-137 0.02 LLD - 0/2 Sept. 1978 Control location is Station 09 for fish.
TTELEDYNE ISOTOPES CONCLUSIONS (January 1,1978-March 31,1978) For the first quarter (January 1 - March 31,1978) the analysis per-formed to satisfy the provisions of the Environmental Radiological, Monitoring Program (ERMP) in the vicinity of the North Anna Power Station (NAPS) are pre-sented in this report. The activity levels of the detected radicnuclides remained within ranges measured during the preoperational program (see Ref. 6). Thus, the radioactivities measured during this first quarter are the baseline environmental levels and no radionuclides were measured that could by generated by the NAPS. Possible sources of environmental radioactivity and exposure at NAPS are: (1) environmental natural activity, (2) releases from the nuclear pt er station, (3) worldwide fallout from atmospheric nuclear devices, and (4) ex-posures and released from medical and industrial sources. The ERMP at NAPS is structured to permit evaluation of and assignment-to each of these sources of any measured dose or radioactivity. Thus, the detection of iodine-131 during the week of 03/21/78 - 03/28/78 was assigned to worldwide fallout from the hhrch 14, 1978 atmospheric nuclear detonation by the Peoples Republic of China at Lop Nor, Central Asia. The uniform and widespread distribution of the iodine-131 in nine~of the ten operating collection stations supports this conclusion. In addition, iodine-131 fallout was reported by most investigators throughout the United States during this period. During this quarter iodine-131 was detected in the airborne exposure pathway (charcoal filters) and not in the waterborne or ingestion pathways. If detected levels of radioactivity were measured in water or milk, the dose to the maximum exposed individual (infants) can be calculated from Regulatory Guide 1.109 (Ref. 12). Thus the correlation of radioactivity with dose level is available in the literature in compilations such as the EPA - Radiological Quality of the Environment in the United States (Ref. 11). Dose levels from natural and arti-ficial sources are listed in Table 8 and taken from Ref. 11. The average ambient external ;amma dose in Virginia is listed as 55 mren/ year in Table 8. The ambient external gamma dose measured in the environs of NAPS was 0.18 (365) = 66 mr/ year. Note: The dose equivalent in mrems is numerically equal to the absorbed dose in mr (mrads) multiplied by the quality factor (Q) and the product of any other modifying factors (N) at the point of interest in tissue. ICRP has presently assigned a value of I for irradiations by external sources.
/
/ 42-A
i TTELEDYtlE ISOTOPES coNctusioNs (April 1,1978-June 30,1978) Presented in this report are the analyses performed during the second quarter (April 1 - June 30,1978) to satisfy the provisions of the Environmental Radiological Monitoring Program (ERMP) in the vicinity of the North Anna Power Station (NAPS) . Comparing the data for this quarter with that from the preoperational program justifies the conclusion that the levels of radioactivities have remained the same. No radionuclides were measured that could be attributed to operations of NAPS. All radio-nuclides detected in the environs of NAPS are at the baseline envirenmental levels and duplicate results obtained for the preoperational program. Also detected were fission products from the atnospheric nuclear tests by the Peoples Republic of China in 1977 and on March 14, 1978 and detec-ted in the atmospheric pathway. Possible sources of environmental radioactivity and exposure of the population are (1) environmental natural radioactivity, (2) releases from nuclear power stations, (3) worldwide fallcut from atmosoheric nuclcar
-evices, and (4) exposures and releases from medical and/or industrial sources. The ERMP at NAPS is structured to pernit evaluation and assignment to these sources of measured doses or radioactivities. Average radiation doses to the individual from natural and artifi'cial sources are listed in Table 8.
42-B
TTELEDYNE ISOTOPES CONCLUSIONS (JULY 1,1978-SEPTEMBER 30,1978) Appended to this report are the analyses perforned during the third quarter of 1978 for the Environmental Radiological Monitoring Program in the environs of the North Anna Power Station of the Virginia Electric and Power Company. The results generated during this quarter show no measurable effect from operations of the power station, with the possible exception of increased H-3 levels in surface water at the Discharge Lagoons (Station 08), Lake Anna, Upstream (Station 09) and North Anna River, downstream (Station 11) . However to verify the source and pathway of the distribution of the 11-3, additional measurements must be genera'ed for future monitoring periods. The possible sources of natural and artificial environmental radioactivity have been reviewed previously and are listed in Table 8. O s 42-C h
TTELEDYNE ISOTOPES TABLE 8 RADI ATION DOSE TO Tile INDIVIDUAL FROM NATURAL AND ARTIFICIAL SOURCES (FR0b! REF. 11) Natural and Artificial Annual per Capita Source In Exposure Source Whole Body Dose Ref. 11 Ambient external gamma 55 mrem / year Page 36, Table 2-13 (Virginia) Medical - bone marrow dose 103 mrad / year Page 213, Table 8-3 to the adult population 1970 K internal constitutent 17 mRea/ year Page 29, Tabic 2-9 of body for beta, and gamma whole body Global fallout - total annual 4.4 mrem / year Page 131, Tabic 4-10 per capita body dose, est. 1980 6 9 43
TTELEDYNE ' (SOTOPES REFERE);CES 1. United States Nuclear Regulatory Commission, Regulatory Guide 4.8
" Environmental Technical Specifications for Nuclear Power Plants,"
December 1975. 2. Quarterly reports on the Environmental Radiological Monitoring Pro-gram (ERMP) at the North Anna Power Station prepared by Teledyne Isotopes (IWL-0268-345 and 3S9 July-December 1974) . 3. Quarterly reports on the ERMP at the North Anna Power Station prepared by Teledyne Isotopes (INL-0268-364, 367, 371, 375, and 376 January-December 1975). 4. Quarterly reports on the ERMP at the North Anna Power Station prepared by Teledyne Isotopes (IWL-0~'68-387, 394, and 395 January-December 1976). S. Quarterly reports on the ERMP at the North Anna Power Station prepared by Teledyne December, Isotopes (IEL-S343-406, 407, 413, 423, and 429 January-1977). 6. Tcledyne Isotopes " Environmental Monitoring Summary - Preoperational Program - July 1,1974 - September 30, 1977 IWL'5343-426. Prepared for Virginia Electric and Power Company (NAPS 1.
- 7. Appendix B to Operating License, Environmental Technical Specifications for North Anna Power Station, Units 1 and 2, Virginia Electric and Power Company, Docket Nos. S0-338 and 50-336.
- 8. Virginia Electric and Power Company, Radiological Envi ronmental Moni-toring Manual, June 1977.
9. Teledyne Isotopes, " Environmental Radiation Analysis Quality Control Manual," IWL-0032-361, 1975, Copy No. 14 issued to Virginia Electric and Power Company. 10. Energy Research'and Development Administration,!!ASL Procedures Manual, (llASL-300, D-08) . 11. United States Environmental Protection Agency. " Radiological Quality of the Environment tember 1977. in the United States,1977" EPA 520/1-77-009, Sep-12. United States Nuclear Regulatory Commission. Regulatory Guide 1.109,
" Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents pendix I," for the Purpose October 1977. of Evaluating Compliance with 10CFR50, Ap-
_ 44
9 APPENDIX C TABLE OF CONTENTS , TTELEINNE ISOTOPES Analytical Summary Previous Three Exposure Analysis Data Tables Quarters Tables Pathway Sample C 24 C-25,C 26 Air Particulate Gross Beta (even) C-2:C-22 Airborne Gamma Isotopic (odd) C-?:C,23 C-25 C,27 Air Radioiodine I-131 (even) C-2:C-22 Gross Beta C-28 - Precipitation C-29 C-29 C-30 T1.D Gamma Dose Direct C-31 - C-34 Waterborne Discharge Water (81 I-131,Gs ma Isotopic C-34 11- 3 C-33 - C-32 - C-34 Reservoir Water (9) 1-131,Camma Isotopic - C-34 11- 3 C-35 - C-36 North A9na River (11) Camma Isotopic - C-36 11- 3 C-35 p - C,37 - - Well Water (10) Gamma Isotopic - C-S7 - li-3 C-38:C-41 - C-44 Sediment.' Silt Camms Isotopic Sr-89,Sr-90 C-41 - 'C-44 C-42 - C-44 Soll Shoreline Gamma Isotopic - C-44 St-89,Sr-90 C-43 C-45:C-47 - C 49 I-131,Camma Isotopic C-49 Ingestion Milk S r- 89,S r-90 C-48 - C-50:C-51 - C-52 Food / Gar'mn Crops Gamma Isotopic C-53 - C-53 Fish Camma Isotopic
TTELEDYNE lSOTOPES gog7,i Aggx power STATION A. AIR PARTICULATE 6 CllARCOAL FILTERS STATION NUMBER 01 AP FILTER HID COUNT CHARCOAL FILTER MID COUNT COLLECTION DATE TIME OROSS BETA TIME I-131 START STOP DATE (pCi/Cu. M.) DATE (pCi/Cu. M.) DATE DATE VOLUME UNITS 1.7 +-0.5 E-02 07/13 L.T. 2. E-01 06/27/78 07/05/78 1.55 E 02 CU. M. 07/14 9.5 +-0.9 E-02 07s19 L.T. 7. E-02 07/05 07/12 1.39 E 02 CU. M. 07/20 5.0 +-0.8 E-02 (a) 07/12 07/18 1.21 E 02 CU. M. 07/26 2.2 +-0.5 E-02 08/02 L.T. 9. E-02 07/18 07/26 1.64 E 02 CU. M. 08/03 3.5 +-0.7 E-02 08/10 L.T. 1. E-01 07/26 08/01 1.12 E 02 CU. M. 08/09 1.6 +-0.5 E-02 08/16 L.T. 1. E-02 08/08 1.39 E 02 CU. M. 08/20 $ 08/01 E-03 CU. M. 08/24 1.9 +-0.5 E-02 08/22 L.T. 7. 08/08 08/15 1.38 E 02 7.1 +-0.8 E-02 ,08/30 L.T. 8. E-03 08/15 08/22 1.44 E 02 CU. M. 08/31 E-02 09/07 L.T. 7. E-03 1.39 E 02 CU. M. 09/09 5.4 +-0.7 08/22 03/29 E-02 09/11 L.T. 6. E-03 1.39 E 02 CU. M. 09/13 2.4 +-0.6 08/29 09/05 4.8 +-0.8 E-02 09/20 L.T. 7. E-03 09/05 09/12 1.37 E 02 CU. M. 09/29 3.0 +-0.7 E-02 09/28 L.T. 1. E-02 09/12 09/19 1,43 E 02 CU. M. 09/30 2.3 +-0.5 E-02 10/05 L.T. 7. E-03 09/19 09/26 1.48 E 02 CU. M. 10/06 CU. M. E-0? 10/13 L.T. 7. E-03 09/26 10/03 1.33 E 02 10/16 3.0 +-0.7 (a) charcoal cartridges not received
a TTELEDYNE ISOTOPES NORTH ANNA POWER STATION QUARTERLY COMPOSITE OF AIR PARTICULATES (pCi/Cu. M.) STATION NUMBER 01 FIRST QUARTER SECOND QUARTER TilIRD QUARTER DATE COLLECTED: GAMMA SPECTRUM ANALYSIS: 7.85+-2.24E-02 9.64+-2.70E-02 4.45+ 1.95E-02 BE-7 , L.T. 3. E-02 L.T. 4 E-02 K-40 L.T. 5. E-02 L.T. 1. E-03 L.T. 2. E-03 MN-54 L.T. 2. E-03 L.T. 2. E-03 L.T. 2 E-03 CO-58 L.T. 3. E-03 L.T. 8. E-03 L.T. 5. E-03 FE-59 L.T. 8. E-03 L.T. 1. E-03 L.T. 2. E-03 CO-60 L.T. 2. E-03 L.T. 3. E-03 L.T. 4 E-03 ZN-65 L.T. 5. E-03 L.T. 4. E-03 L.T. 3. E-03 ZR-95 2.15+-2.21E-03 . L.T. 5. E-03 L.T. 3. E-03 RU-103 4.35+-2,.54E-03 L.T. 2. E-02 L.T. 2. E-02 RU-106 L.T. 2. E-02 , L.T. 2. E 00 L.T. 3. E-02 1-131 L.T. 7. E-02 L.T. 1. E-03 L.T. 2. E-03 CS-134 L.T. 2. E-03 4.09+-1.23E-03 L.T. 2. E-03 CS-137 L.T. 2. E-03 L.T. 1. E-01 L.T. 9. E-03 BA-140 L.T. 2. E-02 L.T. 8. E-03 L.T. 5. E-03 CE-141 L.T. 7. E-03 3.60+-0.72E-02 L.T. 1. E-02 CE-144 2.50+-1.17E-02 L.T. 2. E-02 L.T. 3. E-02 RA-226 L.T. 3. E-02 L.T. 2. E-03 L.T. 2. E-03 TH-228 L.T. 3. E-03
TTELEDYNE ISOTOPES NORTII ANNA POWER STATION A. AIR PARTICULATE 4 CilARCOAL FILTERS STATION NUMBER 02 COLLECTION DATE MID COUNT AP FILTER MID COUNT CifARCOAL FILTER START STOP TIME GROSS DETA TIME I-131 DATE DATE VOLUME UNITS DATE (pC1/Cu. M.) DATE (pC1/Cu. M.) 06/27/78 07/05/78 1.54 E 02 CU. M. 07/14 2.9 +-0.6 E-02 07/13 L.T. 2. E-01 07/05 07/12 1.36 E 02 CU. M. 07/20 1.3 +-0.1 E-01 07/19 L.T. 7. E-02 07/12 07/18 1.19 E 02 CU. M. 07/26 2.6 +-0.7 E-02 ) 07/18 07/26 1,58 E 02 CU. M. 08/03 9.4 +-0.8 E-02 08/02 L.T. 9. E-02 07/26 08/01 1.17 E 02 CU. M. 08/09 3.5 +-0.7 E-02 08/10 L.T. 1. E-01 08/08 CU. M. 08/20 6.4 +-0.8 E-02 08/16 L.T. 2. E-02 { 08/01 1.33 E 02 E-03 08/08 08/15 1,38 E 02 CU. M. 08/24 3.6 +-0.6 E-02 08/22 L.T. 8. 08/15 08/22 1.40 E 02 CU. M. 08/31 7.9 +-0.9 E-02 08/31 L.T. 9. E-03 08/22 08/29 1.37 E 02 CU. M. 09/09 7.2 +-0.8 E-02 09/07 L.T, 9. E-03 08/29 09/05 1.34 E 02 CU, M. 09/13 3.7 +-0.7 E-02 09/11 L.T. 6 E-03 09/05 09/12 1.35 E 02 CU. M. 09/29 1.7 +-0.7 E-02 09/20 L.T. 5. E-03 09/12 09/19 1.30 E 02 CU. M. 09/30 1.2 +-0.6 E-02 09/28 L.T. 1 E-02 09/19 09/26 1.40E 02 CU. M. 10/06 1.0 + 0.5 E.02 10/05 L.T. 7. E-03 09/26 10/03 1.35E 02 CU. M. 10/16 1.5 +-0.6 E-02 LOST UPON COLLECTION (a) charcoal cartridges not received ,
NORTH ANN A POWER STATION , TTELEDYNE ISOTOPES QUARTERLY COMPOSITE OF AIR PARTICULATES (pCi/Cu. M.) STATION NUMBER 02 FIRST QUARTER SECOND QUARTER Ti!IRD QUARTER DATE COLLECTED: GAMMA SPECTRUM ANALYSIS: L.T. 4. E-02 7.67+-1.94E-02 2.81+-1.04E-02 BE-7 L.T. 2. E-02 L.T. 4. E-02 K-40 L.T. 5. E-02 L.T. 1. E-03 L.T. 1. E-03 MN-54 L.T. 2. E-03
- 2. E-03 L.T. 2. E-03 CO-58 L.T. 3. E-03 L.T.
L.T. 7. E-03 L.T. 5. E-03 FE-59 L.T. 7. E-03 E-03 L.T. 1. E-03 L.T. 2. E-03 CO-60 L.T. 2. 9 E-03 L.T. 3. E-03 L.T. 3. E-03 m ZN-65 L.T. 5. E-03 L.T. 2. E-03 ZR-95 5.41+-2.53E-03 L.T. 3. E-03 L.T. 2. E-03 RU-103 2.09+-0.36E-02 L.T. 4. E-02 1.44+-0.69E-02 L.T. 1. E-02 RU-106 L.T. 2. E-02 L.T. 1. E 00 L.T. 2. E-02 I-131 L.T. 8. E-03 L.T. 1. E-03 L.T. 1. E-03 CS-134 L.T. 2. E-03 2.95+-0.65E-03 L.T. 1. E-03 CS-137 L.T. 2. 2.86+-1,34E-02 L.T. 2. E-01 L.T. 1. E-02 BA-140 L.T. E-03 L.T. 3. E-03 CE-141 1.43+-0.60E-02 5. 2.46+-0.37E-02 L.T. 8. E-03 CE-144 2.12+-1.26E-02 L.T. 9. E-03 L.T. 2. E-02 RA-226 L.T. 3. E-02 E-03 L.T. 1. E-03 L.T. 14 E-03 TH-228 L.T. 3.
' -wa u_ _
TTELEDYNE lSOTOPES pog73, guyx p0wER STATION A. AIR PARTICULATE 6 CIIARCOAL FILTERS STATION NUM8ER 03 COLLECTION DATE MID COUNT AP FILTER MID COUNT CHARCOAL FILTER START STOP TIME GROSS BETA TIME I-131 DATE DATE VOLUME UNITS DATE (pCi/Cu. M.) DATE (pCi/Cu M.) 06/27/78 07/05/78 1.55 E 02 CU. M. 07/14 2.4 +-0.5 E-02 07/13 L.T. 2. E-01 07/05 07/12 1.38 E 02 CU. M. 07/20 2.5 +-0.6 E-02 07/19 L.T. 7. E-02 07/12 07/18 1.19 E 02 CU. M. 07/26 1.5 +-0.6 E-02 (a) 07/18 '07/26 1.59 E 02 CU. M. 08/03 2.6 +-0.5 E-02 08/02 L.T. 9. E-02 07/26 08/01 1.13 E 02 CU. M. 08/09 1.5 +-0.6 E-02 08/10 L.T. 1. E-01 08/01 08/08 1.38 E 02 CU. M. 08/20 3.6 +-0.7 E-02 08/16 L.T. 1. E-02 98/08 08/15 1.38 E 02 CU. M. Oo/24 3.6 +-0.6 E-0? 08/22 L.T. 7. E-03 08/15 08/22 1.3S E 02 CU. M. 08/31 8.5 +-0.9 E-02 08/31 L.T. 1. E-02 08/22 08/29 1.20 E 02 CU. M. 09/09 1.1 +-0.1 E-02 09/07 L.T. 1. E-02 08/28 09/05 1.37 E 02 CU. M. 09/13 6.2 +-0.9 E-02 09/11 L.T. 7. E-03 09/05 09/12 1.37 E 02 CU. M. 09/29 1.0 +-0.1 E-01 09/20 L.T. 7. E-03 09/12 09/19 1.39 E C' CU, M. 09/30 6.3 +-0.8 E-02 09/28 L.T. 2 E-02 09/19 09/26 3.43 E 02 CU. M. 10/06 5.2 +-0.7 E-02 10/05 L T. 7 E-03 09/26 10/03 1.35 E 02 CU. M. 10/16 5.8 +-0.8 E-02 30/33 L.T. 1 E-02 (a) charcoal cartridges not received p
TTELEDYNE ISOTOPES NORTH ANNA POWER STATION QUARTERLY COMPOSITE OF AIR PARTICULATES (pCi/Cu. M.) STATION NUMBER 03 UATE COLLECTED: FIRST QUARTER SECOND QUARTER THIRD QUARTER GAMMA SPECTRUM ANALYSIS: BE-7 4.85+-2.45E-02 9.50+-3.05E-02 5.93+-1.15E-02 K-40 L.T. 6. E-02 L.T. 4. E-02 L.T. 2 E-02 MN-54 L.T. 2. E-03 L.T. 2. E-03 L.T. 1. E-03 CO-58 L.T. 3. E-03 L.T. 3. E-03 L.T. 1. E-03 FE-59 L.T. 9. E-03 L.T. 1. E-02 L.T. 3. E-03 CO-60 L.T. 3. E-03 L.T. 2. E-03 L.T. 2. E-03 ZN-65 L.T. 6. E-03 L.T. 4. E-03 L.T. 3 E-03 ZR-95 4.54+-2.27E-03 - L.T. 5. E-03 L.T. 2. E-03 RU-103 1.52+-0.48E-02 L.T. 6. E-03 L.T. 2. E-03 RU-106 L.T. 3. 'E-02 L.T.. 2. E-02 L.T. 1. E-02 1-131 L.T. 1. E-01 L.T. 2. E 00 L.T. 1. E-02 CS-134 L.T. 3. E-03 L.T. 2. E-03 L.T. 1. E-03 CS-137 L.T. 3. E-03 3.49+-1.11E-03 L.T. 1. E-03 BA-140 L.T. 3. E-02 L.T. 2. E-01 L.T. 1. E-02 CE-141 1.63+-0.55E-02 L.T. 1. E-02 L.T. 2. E-03 CE-144 2.21+-1.36E-02 3.77+-0.80E-02 6.35+-3.34E-03 RA-226 L.T. 4. E-02 L.T. 2. E-02 L.T. 1. E-02 Til-2 2 8 L.T. 4. E-03 L.T. 2. E-03 L.T. 1. E-03
TTELEWNE ISOTOPES NORTl! ANNA POWER STATION A. AIR PARTICULATE 6 CilARCOAL PILTERS STATION NUMBER 04 MID COUNT A. FILTER MID COUNT CllARCOAL PILTER COLLECTION DATE CROSS BETA TIME 1-131 START STOP TIME VO LUME UNITS DATE (pCi/Cu. M.) .DATE (pCi/Cu. M.) DATE DATE CU. M. 07/14 1.5 +-0.5 E-02 07/13 L.T. 2. E-01 06/27 07/05 1.52E 02 3.8 +-0.6 E-02 07/19 L.T. 7. E-02 07/05 07/12 1.37E 02 CU. M. 07/20 02 CU. M. 07/26 1.5 +-0.6 E-02 (a) 07/12 07/18 1.19E 07/18 07/26 SAMPLE NOT COLLECTED 07/26 08/01 SAMPLE NOT COLLECTED 1.9 +-0.6 E-02 8/16 L.T. 1. E-02 08/01 08/08 1.35E 02 CU. M. 08/20 3.8 +-0.7 E-02 08/22 L.T. 9. E-03 08/08 08/15 1.36E n2 CU. M. 08/24 1.37E 02 CU. M. 08/31 7.0 +.0.8 E.02 08/31 L.T. 3. E-02 08/15 08/22 " 1.19E 02 CU. M. 09/09 8.6 +.1.0 ,E.02 09/07 L.T. 3. E.02 08/22 08/29 4.2 + . 0 <. 8 E,02 09/11 L.T. 8. E.03 08/29 09/05 1.35E 02 CU. M. 09/13 1.35E 02 CU. M. 09/29 2.2 +.0.7 E.C2 09/20 L.T. 6. E.03 09/05 09/12 09/12 09/19 1.37E 02 CU. M. 09/30 5.7 +.0.8 E.02 09/28 L.T. 1. E-02 09/19 09/26 1.40E 02 CU. M. I?/06 2.9 +.0.6 E.02 10/05 L.T. 8 E-03 L T. 9 E,03 09/26 10/03 1.32E 02 CU. M. 10/16 4,4 +-0.8 E.02 10/13 (a) charcoal cartridges not received e
. . - . -. . . - s- e,
J NORTH ANNA POWER STATION . TTELEDYNE ISOTOPES QUARTERLY COMPOSITE OF AIR PARTICULATES (pci/Cu. M.) STATION NUMBER 04 SECOND OUARTER TiflRD QUARTER DATE COLLECTED: FIRST QUARTER GAMMA SPECTRUM ANALYSIS: L.Y. 3. E-02 4.18+-2.09E-02 BE-7 2.31+-1.00E-02
- 3. E-02 L.T. 5. E-02 L.T. 3. E-02 L.T.
K-40 L.T. 3. E-03 L.T. 1. E-03 L.T. 1. E-03' MS-54 E-03 L.T. 6. E-03 L.T. 2. E-03 L.T. 2. CO-58
- 9. E-03 L.T. 6. E-03 L.T. 4. E-03 L.T.
FE-59
- 1. E-03 L.T. *2. E-03 L.T. 1. E-03 L.T.
CO-60 E-03 L.T. 5. E-03 L.T. 3. E-03 L.T. 3. ZN-65 9 E-03 L.T. 3. E-03 L.T. 2. E-03 L.T. 3. ZR-95 L.T. 5. E-03 L.T. 4. E-03 RU-103 L.T. 2. E-03 L.T. 1. E-02 L.T. 2. E-02 RU-106 L.T. 1. E-02 L.T. 2. E 00 L.T. 5. E-02 I-131 L.T. 3. E-02 L.T. 1. E-03 L.T. 2. E-03 CS-134 L.T. 1. E-03 L.T. 1. E-03 L.T. 2. E-03 CS-137 L.T. 1. E-03 L.T. 1. E-01 L.T. 1. E-02 BA-140 L.T. 1. E-02 L.T. 9. E-03 L.T. 6. E-03 CE-141 L.T. 2. E-03 L.T. 9. E-03 L.T. 1. E-02 CE-144 8.57+-4.06E-03 L.T. 2. E-02 L.T. 3. E-02 RA-226 L.T. 1. E-02 L.T. 2. E-03 L.T. 3. E-03 TH-228 L.T. 1. E-03
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TTELEDYNE ISOTOPES NORTH ANNA POWER STATION A. AIR PARTICULATE 6 CHARCOAL FILTERS STATION NUMBER 05 MID COUNT AP FILTER MID COUNT CHARCOAL FILTER COLLECTION DATE TIME I-131 START STOP TIME GROSS BETA VOLUME UNITS DATE (pCi/Cu. M.) DATE (pCi/Cu. M.) DATE DATE 06/27/78 07/05/78 1.53E 02 CU. M. 07/14 8.3 +-0.8 E-02 07/13 L.T. 2. E-01 07/05 07/12 1.36E 02 CU. M. 07/20 8.4 +-0.9 E-02 07/19 L.T. 7. E-02 07/12 07/18 9.42E 01 CU. M. 07/26 6.3 +-1.1 E-02 (a) 07/18 07/26 1.58E 02 CU. M. 08/03 9.2 +-0.8 E-02 08/02 L.T. 9. E-02 07/26 08/01 1.17E 02 CU. M. 08/09 7.1 +-0.9 E-02 08/10 L.T. 1. E-01 08/01 08/08 1.36E 02 CU. M. 08/20 3.3 +-0.7 E-02 08/16 L.T. 2. E-02 ? 08/08 08/15 1.34E 02 CU. M. 08/24 3.3 +-0.6 E-02 08/22 L.T. 8. E-03 8 08/31 5.4 +-0.8 E-02 08/31 L.T. 1. E-02 08/15 08/22 1.35E 02 CU. M. 08/22 08/29 1.36E 02 CU. M. 09/09 6.4 +-0.8 E-02 09/07 L.T. 8. E-03 09/13 4.7 +-0.8 E-02 09/11 L.T. 8. E-03 08/29 09/05 1.35E 02 CU. M. CU. M. 09/29 8.3 +-1.0 E-02 09/20 L.T. 5. E-03 09/05 09/12 1.36E 02 1.30E 02 CU. M. 09/30 5.1 +-0.8 E-02 09/28 'L.T. 2. E-07 09/12 09/19 10/06 3.8 +-0.6 E.02 10/05 L.T, 1. E-02 09/19 09/26 1.40E 02 CU. M. 09/26 10/03 1.35E 02 tu. M. 10/16 3,5 +.0.7 F.02 10/13 L.T. 6. E-03 (a) charcoal cartridges not received E
NORTil ANNA POWER STATION , TTELEDYNE lSOTOPES QUARTERLY COMPOSITE OF AIR PARTICULATES (pci/Cu. M.) STATION NUMBER 05 FIRST QUARTER SECOND QUARTER TiffRD QUARTER DATE COLLECTED: G AMMA SPECTRUM ANALYSIS: 6.05+-2.04E-02 1.22+-0.27E-01 5.67+.1.02E.02 BE-7 E-02 L.T. 2. E-02 L.T. 2 E.02 K-40 L.T. 4. E-03 2 E 03 L.T. 9 E.04 MN-54 L.T. 2. L.T. E-03 L.T. 3. E-03 L.T. 1. E.03 CO-58 L.T. 2. E-03 L.T. 9. E 03 L.T. 3 E.03 FE-59 L.T. 6. L.T. 2. E.03 L.T. 9. E.04 m CO-60 L.T. 2. E-03 ~ E-03 L.T. 4. E.03 L.T. 2 E.03 ZN-65 L.T. 4. E-03 5.17+.2.37E-03 L.T. 1 E.03 ZR-95 L.T. 3. E 03 L.T. 1 E-03 Rtt-103 1.83+-0.33E-02 L.T. 5. L.T. 2. E 02 L.T. 8. E.03 RU-106 L.T. 2. E-02 E-02 L.T. 2. E 00 L.T. 2. E 02 I-131 L.T. 5. ,
- 2. E-03 L.T. 1. E 03 L.T. 9. E.04 CS-134 L.T.
2.74+-1.37E-03 3.28+-0.83E.03 1.79+.0.79E 03 CS-137 E.01 L.T. 6. E 03 BA-140 2.78+-1.56E-02 L.T. 2.
- 7. E-03 L.T. 2. E-03 CE-141 1.09+-0.46E-02 L.T.
2.82+-0.96E-02 3.44+.0.54E 02 1.10+.0.40E-02 CE-144
- 2. E-02 L.T. 1. E.02 L.T. 3. E.02 RA-226 L.T.
E-03 L.T. 1. E-03 L.T, 1. E.03 Til-2 2 8 L.T. 3. e
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TTELEU(NE ISOTOPES NORTH ANNA POWER STATION A. AIR PARTICULATE 6 Cl!ARCOAL FILTERS STATION NUMBER 06 MID COUNT AP FILTER HID COUNT CHARCOAL FILTER COLLECTION DATE GROSS BETA TIME I-131 START STOP TIME UNITS DATE (pCi/Cu. M.) DATE (pCi/Cu. M.) DATE DATE VOLUME CU. M. 07/14 4.9 +-0.7 E-02 07/13 L.T. 2. E-01 06/27/78 07/05/78 1.54 E 02 E-02 07/19 L.T. 7. E-02 07/05 07/12 1.36 E 02 CU. M. 07/20 5.0 +-0.7 CU. M. 07/26 9.5 +-1.1 E-02 (a) 07/12 07/18 1.19 E 02 CU. M. 08/03 7.7 +-0.8 E-02 08/02 L.T. 9. E-02 07/18 07/26 1.59 E 02 CU. M. 08/09 7.6 +-0.9 E-02 08/10 L.7, 1. E-01 07/26 08/01 1.17 E 02 LU. E. 08/20 2.2 +-0.6 E-02 08/16 L.T. 7. E-03 ? 08/01 08/08 1.35 E 02 0 CU. M. 08/24 2.6 +-0.6 E-02 08/22 L.T. 8. E-03 08/08 08/15 1.35 E 02 CU. M. 08/31 5.0 +-0.7 E-02 08/31 L.T. 1. E-02 08/15 08/22 1.39 E 02 CU. M. 09/09 4.3 +-0.7 E-02 0'9/07 L.T. 1. E-02 08/22 08/29 1.37 E 02 CU. M. 09/13 2.4 +-0.6 E-02 09/11 L.T. 9. E-03 08/29 09/05 1.36 E 02 CU. M. 09/29 3.6 +-0.8 E-02 09/20 L.T. 7. E-03 09/05 09/12 1.36 E 02 09/12 09/19 1.38 E 02 CU. M. 09/30 3.7 +-0.7 E-02 09/28 s. . T . 1 E-02 09/19 09/26 1,42 E 02 CU. M. 10/06 4.2 +-0.7 E-02 10/05 L.T. 7 E.03 09/26 10/03 1.35 E 02 CU. M. 10/16 3.3 +-0.7 E-02 10/13 L.T. 9. E-03 (a) charcoal cartridges not received ,
T TELEDYNEISOTO M NORTH ANNA Power STATros yUARTERLY COMPOSITE OF AIR PARTICULATES (pCi/Cu. M.) STATION NUMBER 06 DATE COLLECTED: FIRST QUARTER SECOND QUARTER THIRD QUARTER GAMMA SPECTRUM ANALYSIS: 6.35+-1.40E-02 1.13+-0.22E-01 4.76+-1.40E-02 BE-7 L.T. 4. E-02 L.T. 4. E-02 K-40 L.T. 2. E-02 L.T. 4. E-03 L.T. 1. E-03 MN-54 L.T. 1. E-03 L.T. 7. E-03 L.T. 2. E-03 CO-58 L.T. 1. E-03 L.T. 3. E-02 L.T. 5. E-03 FE-59 L.T. 5. E-03 L.T. 3. E-03 L.T. 2. E-03 CO-60 L.T. 2. E-03 7 L.T. 1. E-02 L.T. 4. E-03 0 ZN-65 L.T. 3. E-03 3.73+-0.37E-02 L.T. 2. E-03 ZR-95 6.54+-1.64E-03 L.T. 4. E-03 L.T. 2. E-03 RU-103 9.37+-1.91E-03 1.77+-0.87E-02 L.T. 1. E-02 RU-106 L.T. 1. E-02
- 1. E 00 L.T. 2. E-02 I-131 3.91+-2.20E-02 L.T.
L.T. 1. E-03 L.T. 1. E-03 CS-134 L.T. 1. E-03 3.63+-0.90E-03 L.T. 1. E-03 CS-137 1.93 0.65E-03 L.T. 1. E-01 L.T. 1. E-02 BA-140 L.T. 2. E-02 L.T. 6. E-03 L.f. 3, E-03 CE-141 1.18+-0.17E-02 2.48+-0.41E-02 L.T. 7. E-03 CE-144 2.36+-0.38E-02 L.T. 1. E-02 L.T. 1. E-02 RA-226 L.T. 1. E-02 L.T. 1. E-03 L.T. 1. E-93 TH-228 L.T. 1. E-03
NORTH ANNA POWER STATION TTELEDYNE ISOTOPES A. AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 07 AP F I LTER MID COUNT CHARCOAL PILTER MID COUNT TIME I-131 COLLECTION DATE TIME GROSS BETA STOP (pci/Cu. M.) DATE (pCi/Cu. M.) START DATE DATE VOLUME UNITS DATE 5.3 +-0.7 E-02 07/13 L.T. 7. E-02 1.51E 02 CU. M. 07/14 06/27/78 07/05/78 E-01 CU. M. 07/20 7.0 +-0.8 E-02 07/19 L.T. 2. 07/05 07/12 1.34E 02 07/26 2.8 +-0.9 E-02 (a) 07/18 8.51E 01 CU. M. 07/12 7.6 +-0.8 E-02 08/02 L.T. 7. E-02 07/18 07/26 1.52E 02 CU. M. 08/03 E-02 08/09 L.T. 8. E-02 02 CU. M. 08/09 6.5 +-0.8 07/26 08/01 1.26E 2.3 +-0.6 E-02 08/16 L.T. 9. E-03 08/01 08/08 1.15E 02 CU. M. 08/20 02 CU. M. 08/24 1.7 +-0.5 E-02 08/22 L.T. 9. E-03 08/08 08/15 1.45E 5.6 +-0.7 E-02 08/31 L.T. 1. E-02 08/15 08/22 1.42E 02 CU. M. 08/31 08/22 1.22E 02 CU. M. 09/09 8.4 +-1.0 ,E-02 09/07 L.T. 2. E-02 08/29 08/29 09/05 1.37E 02 CU. M. 09/13 4.4 + 0.8 E-02 09/11 L.T. 9. E-03 09/05 09/12 1. 3 8 r. 02 CU. M. 09/29 9.0 +-1.0 E-02 09/20 L.T. 6. E-03 1.41E 02 CU. M. 09/30 4.4 +-0.7 E-02 09/28 L.T. 9. E-03 09/12 09/19 09/19 09/26 1.44E CU. M. 10/06 3.9 +-0.6 E-02 10/05 L.T. 1 E-02 09/26 10/03 1.38E CU. M. 10/16 4,0 +=0.7 E-02 10/13 L.T. 8 E-03 (a) charcoal cartridges not received d
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TTELEDYNE ISOTOPES NORTH ANNA P0wER STATION QUARTERLY COMPOSITE OF AIR PARTICULATES (pCi/Cu. M.) STATION NUMBER 07 DATE COLLECTED: F'IRST QUARTER SECOND QUARTER THIRD QUARTER GAMMA SPECTRUM ANALYSIS: BE-7 6.44+-1.31E-02 1.24+-0.2SE-01 4.71+-1.22E-02 K-40 L.T. 2. E-02 L.T. 2. E-02 L.T. '2. E-02 MN-54 L.T. 1. E-03 L.T. 1. E-03 L.T. 9. E-04 CO-58 L.T. 1. E-03 L.T. 2. E-03 L.T. 2. E-03 FE-59 L.T. 4. E-03 L.T. 8. E-03 L.T. 3. E-03 CO-60 L.T. 1. E-03 L.T. 2. E-03 L.T. 1. E-03 9 C; ZN-65 L.T. 3. E-03 L.T. 3. E-03 L.T. 3. E-03 ZR-95 6.02+-1.33E-03 5.86+-2.23E-03 L.T. 1. E-03 RU-103 1.89+-0.21E-02 L.T. 5. E-03 L.T. 1. E-03 RU-106 L.T. 1. E-02 1.74+-0.95E*02 L.T. 8. E-03 1-131 3.50+-2.16E-02 L.T. 1. E 00 L.T. 2. E-02 CS-134 L.T. 1. E-03 L.T. 1. E-03 L.T. 1. E-03 CS-137 2.42+-0.60E-03 3.07+-0.75E-03 L.T. 1 E-03 BA-140 3.67+-1.26E-02 L.T. 1. E-01 L.T. 9. E-03 CE-141 1.14+-0.18E-02 L.T. 6. E-03 L.T. 2. E-03 CE-144 2.13+-0.34E-02 3.32+-0.50E-02 L.T. 5. E-05 RA-226 , L.T. 9. E-03 L.T. 1. E-02 L.T. 1. E-02 TH-228 L.T. 1. E-03 L.T. 1. E-03 L.T. 1. E-03
TTELEDYNE ISOTOPES NORTil ANNA POWER STA110N A. AIR PARTICULATE 4 CllARCOAL FILTERS STATION NUMBER 21 MID COUNT AP FILTER MID COUNT CHARCOAL FILTER COLLECTION DATE GROSS BETA TIME I-131 TIME START STOP UNITS DATE (pC1/Cu. M.) DATE (pCi/Cu. M.) DATE DATE VOLUME 4.5 +-0.7 E-02 07/13 L.T. 7. E-02 06/27/78 07/05/78 1.54 E 02 CU. M. 07/14 8.5 +-0.9 E-02 07/19 L.T. 2. E-01 07/05 07/12 1.37 E 02 CU. M. 07/20 07/18 1.20 E 02 CU. M. 07/26 6.9 +-0.9 E-02 (a) 07/12 1.5 +-0.4 E-02 08/02 L.T. 6. E-02 07/16 07/26 1.59 E 02 CU. M. 08/03 5.9 +-0.9 E-02 08/09 L.T. 9. E-02 07/26 08/01 1.17 E 02 CU. M. 08/09 3.0 +-0.6 E-02 08/16 L.T. 1. E-02 08/(1 08/08 1.36 E 02 CU. M. 08/20 2.9 +-0.6 E-02 08/22 L.T. 7. E-03 08/08 08/15 1.37 E 02 CU. M. 08/24 ' 7.2 +-0.8 E-02 08/31 L.T. 1. E-02 08/15 08/22 1.40 E 02 CU. M. 08/31 7.5 +-0.9 E-02 09/07 L.T. 8. E-03 08/22 08/29 1.38 E 02 CU. M. 09/09 2.3 +-0.7 E-02 09/13 L.T. 1. E-02 08/29 09/05 1.38 E 02 CU. M. 09/13 3.5 +-0.8 E-02 09/20 T L.'. 1. E-02 09/05 09/12 1.39 E 02 CU. M. 09/29 CU. M. 09/30 2.0 +-0.6 E-02 09/28 L.T. 1. E-02 09/12 09/19 1.36 E 02 4.1 +-0.6 E-02 10/03 L.T. 8 E-03 09/19 09/26 1.42 E 02 CU. M. 10/06 10/16 3.6 +-0.7 E-02 10/13 L.T. 1. E-02 09/26 10/03 1.35 E 02 CU. M. (a) charcoal cartridges not received
TTELEINNE lSOTOPES NORTH ANNA POWER STATION QUARTERLY COMPOSITE OF AIR PARTICUIATES (pCi/Cu. M.) STATION NUMBER 21 DATE COLLECTED: PIRST QUARTER SECOND QUARTER THIRD QUARTER GAMMA SPECTRUM ANALYSIS: BE-7 6.24+-1.08E-02 7.39+-2.83E-02 3.92+-0.'7E-02 K-40 L.T. 2. E-02 L.T. 4. E-02 L.T. 2. E-02 MN-54 L.T. 1. E-03 L.T. 5. E-03 L.T. 8. E-04 CO-58 L.T. 1. E-03 L.T. 1. E-02 L.T. 1. E-03 FE-59 L.T. 4. E-03 L.T. 3. E-02 L.T. 3. E-03 CO-60 L.T. 1. E-03 L.T. 6. E-03 L.T. 1. E-03 o ZN-65 L.T. 3. E-03 L.T. 1. E-02 L.T. 2. E-03 ZR-95 5.78+-1.33E-03 L.T. 1. E-02 L.T. 1. E-03 RU-103 1.69+-0.19E-02 L.T. 6. E-03 L.T. 1. E-03 RU-106 L.T. 1. E-02 L.T. 2. E-02 '. . T . 7. E-03 1-131 L.T. 3. E-02 L.T. 2. E 00 L . ." . 2. E-02 CS-134 L.T. 1. E-03 L.T. 2. E-03 L.T. 7 E-04 CS-137 1.93+-0.55E-03 2.69+-1.06E-03 1.27+-0.48t-03 BA-140 2.15+-0.98E-02 L.T. 2. E-01 L.T. 9. E-03 CE-141 1.07+-0.15E-02 L.T. 9. E-03 L.T. 1. E-03 CE-144 1.94+-0.31E-02 2.45+-0.76E-02 L.T. 3. E-03 RA-226 L.T. 9. E-03 L.T. 2. E-02 L.T. 8. E.03 TH-228 L.T. 1. E-03 L.T. 1. E-03 L.T. 9. E-04 i
TTELEDYNE ISOTOPES NORTH ANNA POWER STATION A. AIR PARTICULATE 6 CHARCOAL FILTERS STATION NUM8ER 22 AP FILTER MID COUNT CHARCOAL FILTER MID COUNT COLLECTION DATE TIME GROSS BETA TIME I-131 START STOP DATE (pC1/Cu. M.) DATE (pC1/Cu. M.) DATE DATE VOLUME UNITS 7.2 +-0.8 E-02 07/13 L.T. 8. E-02 06/;7/78 07/05/78 1.47E 02 CU. M. 07/14 1.5 +-0.1 E-01 07/19 L.T. 2. E-01 07/05 07/12 1.36E 02 CU. M. 07/20 1.18E 02 CU. M. 07/26 9.9 +-1.1 E-02 (a) 07/12 07/18 1.1 +-0.1 E-01 08/02 L.T. 6. E-02 07/18 07/26 1.58E 02 CU. M. 08/03 7.0 +-0.9 E-02 08/09 L.T. 9. E-02 07/26 08/01 1.17E 02 CU. M. 08/09 2.4 +-0.6 E-02 08/17 L.T. 7. E-03 08/01 08/08 1.36E 02 CU. M. 08/70 4.0 +-0.7 E-02 08/22 L.T. 1. E-02 08/08 08/15 1.35E 02 CU. M. 08/24 5.9 +-0.8 E-02 08/31 L.T. 1. E-02 08/15 08/22 1.37E 02 CU. M. 08/31 n .'. 8.1 +-1.0 E-02 09/07 L.T. 1. E-02 " 08/22 08/29 1.19E 02 CU. M. 09/09 4.4 +-0.8 E-02 09/13 L.T. 6. E-03 08/29 09/05 1.36E 02 CU. M. 09/13 6.2 +-0.9 T-02 09/20 L.T. 5. E-03 09/05 09/12 1.36E 02 CU. M. 09/29 4.2 +-0.8 E-02 09/28 . L.T. 1. E-02 09/12 09/19 1.36E 02 CU. M. 09/30 10/06 L.T. 7. E-03 1.41E 02 CU. M. 10/06 4.4 >-0.7 E 02 09/19 09/26 10/13 L.T. 7. E-03 CU, M. 10/16 3. 2 + 0. 7 E-02 09/26 10/03 1.33E 02 (a) charcoal cartridges not received . M=m, 4 me.p w ,
14'TELEDYNE lfA7DDPES NORTil ANNA POWER STATION QUARTERLY COMPOSITE OF AIR PARTICULATB5 (pcl/cu. M.) BtAtt0N NUMDDR 22 DATE COLLtetBDt FIR 97 QUARTER But0ND QUARttR tillRD QUA9 t F.R CAMMA BruttRUM ANALYD191 Bt.1 4.624 1.33B.02 1.414 0.418 01 4.16+.0.96E.02 K.40 L.t. 3. E.02 L.T. 5. E.02 L.T. 3. 'h 02 L.t. 1. b.03 L.t. 2. H 03 L.i. 1. E.03 MN-54
- 1. B.03 L.T. 4. B.03 L.7. 1. E.03 Co.58 L.T.
L.T. 3. B.03 !. . T . 1. B.02 L.T. 4. B.03 FE-50
- 1. E-03 L.T. 2. B.03 L.T. 1. E.03 C0-60 L.T.
ZN-65 L.T. 3. E-03 L.T. 6 E.03 L.T. 3. E-03 9 G , 6.72+-1.40E-03 6.44+-3.80E.03 L.T. 1. E-03
. ZR-95 RU-103 1.63+-0.21E-02 L.T. 1. E-02 L.T. 2. E 03 RU-106 1.59+-0.79E-02 L.T. 2. E.02 L.T. 8. E-03 1-131 3.12+-2.37E-02 L.T. 4. E 00 L.T. 2. E-02 CS-134 L.T. 1. E-03 L.T. 2. E-03 L.T. 9. E-04 CS-137 1.98+-0.86E-03 2.86+-1.52E-03 1.30+-0.59E-03 BA-140 3.36+-1.07E-02 L.T. 2. E-01 L.T. 1. E-02 CE-141 1.12+-0.22E-02 L.T. 2. E-02 L.T. 4. E-03 CE-lit 1.47+-0.41E-02 3.64+-1.06E-02 L.T. 4. E-03 RA-226 L.T. 1. E-02 L.T. 3. E-02 L.T. 8. E-03 Til- 2 2 8 L.T. 1. E-03 L.T. 3. E-03 L.T. 8. E-04
TTELEINNE LSOTOPES NORTH ANNA POWER STATION A. AIR PARTICULATE 6 CHARCOAL FILTERS
. STATION NUMBER 23 COLLECTION DATE MID COUNT AP FILTER MID COUNT CHARCOAL FILTER START STOP TIME GROSS BETA TIME I-131 DATE DATE VOLUME UNITS DATE (pCi/Cu. M.) DATE (pLi/Cu. M.)
06/27/78 07/05/78 1.55E 02 CU. M. 07/14 6.9 +-0.8 E-02 07/13 L.T. 7. E-02 07/05 07/12 1.36E 02 CU. M. 07/20 1.2 +-0.1 E-01 07/19 L.T. 2. E-01 07/12 07/18 1.21H 02 r". M. 07/26 8.7 +-1.0 E-02 (a) 07/18 07/26 1.58E 02 CU. M. 08/03 9.9 +-0.9 E-02 SAMPLE NOT COLLECTED 07/26 08/01 1.18E 02 CU. M. 08/09 4.0 +-0.7 E-02 08/09 L.T. 9. E-02 08/01 08/08 1.33E 02 CU. M. 08/20 2.7 +-0.6 E-02 08/17 L.T. 1. E-02 08/08 08/15 1.35E 02 CU. M. 08/24 4.2 +-0.7 E-02 08/22 L.T. 9. E-03 9 08/15 08/22 1.41E 02 CU. M. 08/31 7.7 +-0.8 E-02 08/31 L.T. 2. E-02 0 08/22 08/29 1.36E 02 CU. M. 09/09 9.5 +-1.0 E.02 09/08 L.T. 1. E-02 08/29 09/05 1.37E 02 CU. M. 09/13 7.7 +-C.'9 E-02 09/13 L.T. 1. E-02 09/05 09/12 1.36E 02 CU. M. 09/29 8.0 +-1.0 E-02 09/20 L.T. 5. E-03 09/12 09/19 1.35E 02 CU. M. 09/30 5.0 +-0.8 E-02 09/24 L.T. 7. E-03 09/19 09/26 1.42E 02 CU. M. 10/06 5.9 +-0.7 E-02 10/06 L.T. 6. E-03 09/26 10/03 1.35E 02 CU. M. 10/16 5.8 +-0.8 E-02 10/'a L.T. 8. E-03 (a) charcoal cartridges not received e
L . TTELEDYNE ISOTOPES NORTH ANNA POWER STATION QUARTERLY COMPOSITE OF AIR PARTICULATES (pC1/Cu. M.) STATION NUMBER 23 DATE COLLECTED: FIRST QUARTER SECOND QUARTER T!!IRD QUARTER GAMMA SPECTRUM ANALYSIS: BE-7 8.46+-2.03E-02 1.09+-0.23E-01 7.38+-1.82E-02 K-40 L.T. 4. E-02 L.T. 2. E-02 L.T. 4 E-02 MN-54 L.T. 2. E-03 L.T. 1. E-03 L.T. 2. E-03 CO-58 L.T. 2. E-03 L.T. 2. E-Ot L.T. 2. E-03 L.T. E-03 L.T. 8. r- L.T. 6. E-03 F fi-5 9 5.
- 2. E-03 L.T. 1. E-03 L.T. 2 E-03 CO-60 L.T.
ZN-65 L.T. 3. E-03 L.T. 3. E-03 L.T. 4. E-03 1.04+-0.36E-02 - 3.12+-1.71E-03 L.T. 2. E-03 ZR-95 RU-103 9.01+-2.70E-03 L.T. 5. E-03 L.T. 3. E-03 1 27*-0.63E-02 L.T. 2. E-02 RU-106 2.29+-1.24E-02 L.T. 1. E 00 L.T. 5. E-02 I-131 L.T. 5. E-02 L.T. 1. E-03 L.T. 2. E-03 CS-134 L.T. 1. E-03 2.62+-0.64E-03 L.T. 2. E-03 CS-137 2.74+-1.35E-03 L.T. 2. E-01 L.T. 2. E-02 BA-140 L.T. 2. E-02 CE-141 1.13+-0.38E-02 L.T. 5. E-03 L.T. 5 E-03 2.92+-0.82E-02 2.36+-0.37E-02 L.T. 1 E-02 CF-144 E-02 L.T. 9. E-03 L.T, 3. E-02 RA-226 L.T. 2. L.T. 2. E-03 L.T. 1. E-03 L.T. 2. E-03 TH-228
NORTH ANNA POWER STATION TTELEDYNE ISOTOPES A. AIR PARTICULATE 8 CHARC0AL FILTERS STATION NUMBER 24 COLLECTION DATE MID COUNT AP FILTER HID COUNT CHARCOAL FILTER START STOP TIME GROSS BETA TIME I-131 DATE DATE VOLUME UNITS DATE (pC1/Cu. M.) DATE (pCi/Cu. M.) 06/27/78 07 f 05/78 1.49E 02 CU. M. 07/14 9.1 +-0.9 E-02 07/13 L.T. 7. E-02 07/05 07/11 1.15E 02 CU. M. 07/20 6.2 +-0.8 E-02 07/19 L.T. 2. E-01 07/12 07/18 1.26E 02 CU. M. 07/26 1.1 +-0.1 E-01 (a) 07/13 07/25 1.32E 02 CU. M. 08/03 1.1 +-0.1 E-01 08/02 L.T. b. E-02 07/26 08/01 1.32E 02 CU. M. 08/09 2.9 +-0.6 E-02 08/09 L.T. 8. E-02 08/01 08/08 1.32E 02 CU. M. 08/20 2.0 +-0.6 E-02 08/16 L.T. 1. E-01 08/08 08/15 1.32E 02 CU. M. 08/24 4.2 +-0.7 E-02 08/22 L.T. 9. E-03 08/15 08/22 1.32E 02 CU. M. 08/31 6.8 +-0.8 E-02 08/30 L.T. 7. E-02 08/22 08/29 1.67E 02 CU. M. 09/09 4.1 +-0.6 E,02 09/08 L.T. 6. E-03 08/29 09/95 2.02E 02 CU. M. 09/13 3.9 +-0.6 E-02 09/13 L.T. 7. E-03 09/05 09/12 1.34E 02 CU. M. 09/29 1.1 +-0.1 E-01 09/20 L.T. 7. E-03 09/12 09/19 1.36E 02 CU, M. 09/30 7.2 +-0.9 E-02 09/29 L.T. 9. E-03 09/19 09/26 . 35E 02 CU. M. 10/06 7.1 +-0.8 E-02 10/06 L.T. 1. E-02 09/26 10/03 1.34E 02 CU. M. 10/16 6.6 +-0.9 E-02 10/13 L.T. 8 E-03 (a) charcoal cartridges not received
TTELED(NE ISOTOPES NORTH ANNA POWER STATION QUARTFRLY COMPOSITE OF AIR PARTICULATES (pC1/Cu. M.) STATION NUMBER 24 DATE COLLECTED: FLRST QUARTER SECOND QUARTER THIRD QUARTER GAMMA SPECTRUM ANALYSIS: BE-7 6.85+-1.22E-02 1.08+-0.26E-01 6.22+-1.24f.-02 L.T, 2. E-02 L.T. 3. E-02 L.T. 3 E-02 K-40 MN-54 L.T. 1. E-03 L.T. 1. E-03 L.T. 1 E-03 CO-58 L.T. 1. E-03 L.T. 2. E-03 L.T, 2. E-03 FE-59 L.T. 4. E-03 L.T- 8. E-03 L.T. 4. E-03 CO-60 L.T. 1. E-03 L.T. 1. E-03 L.T. 2 E-03 L.T. 3. E-03 L.T. 4. E-03 L.T. 3. E-03 ZN-65 5.47+-1.32E-03 L.T. 3. E-03 L.T. 2 E-03 n ZR-95 E-03 L.T. 5. E-03 L.T, 2 E-03 RU-103 L.T. 2. RU-106 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-03 I-131 L.T. 4. E-02 L.T. 2. E 00 L.T. 3. E,02 CS-134 L.T. 1. E-03 L.T. 1. E-03 L.T. 1 E-03 2.27+-0.54E-03 3.16+-1.20E-03 1.66+,0.83E 03 CS-137 BA-140 L.T. 2. E-02 L.T. 1. E-01 L.T. 1 E-02 L.T. E-03 L.T. 9. E-03 L.T, 3. E-03 CE-141 2. CE-144 2.07+-0.29E-02 2.67+ 0.80E-02 9.39+-5.25E-03 RA-226 L.T. 8. E-03 L.T. 2. E-02 L.T. 1, E-02 TH-228 L.T. 9. E-04 L.T. 2. E-03 L.T. 1. E-03
NORTff ANNA POWER STATION TTELEDYNE ISOTOPES
SUMMARY
OF GROSS BETA AIR PARTICULATE ACTIVITY pC1/Cu.M. COLLECTION tx 7 RANCE PLR10D 1978 xE 00 n xE '00 MEDIA NUCLIDE STATION CR-B ALL 0.547 11 0.050 0.015 0.091 06/27-07/05 AIR PARTICULATE 0.909 11 0.083 0.025-0.150 07/05-07/12 Ici/CU.M. 0.664 11 0.060 0.015-0.110 07/23-07/18 0.721 10 0.072 0.015-0.110 07/18-07/26 2.841 43 0.066 0.015-0.150 GR-B ALL 0.495 10 0.050 0.015-0.076 01f26-08/01 0.314 11 0.029 0.016-0.064 05/01-08/08 0.365 11 0.033 0.017 0.047 08/08-08/15 0.741 11 0.067 0.050 0.085 08/15-08/22 0.706 11 0.064 0.011-0.095 08/22-08/29 2.621 54 0.049 0.011-0.095 9 0.042 0.023 0.077 08/29 09/05 U CR-B ALL 0.463 11 0.683 11 0.062 0.017-0,110 09/05-09/1". 0.478 11 0.043 0.012-0.072 09/12-09 ;9 0.448 11 0.041 0.010-0.071 09/19-0>,26 0.447 11 0.041 0.015-0.066 09/26-10/03 2.519 55 0.04f, 0.010-0.110 A
TTF1 Ff7(NE ISOTOPES QUARTERLY RADIOLOGICAL StSNARIES VIRGINIA ELECTRIC AND POWER COMPANY NORT11 ANNA POWER STATION - MINERAL, VIRGINIA FROM JULY 1, 1978 TO SrPT. 30, 1978 QUARTERLY PERIOD: f PREVIOUS 3 QRTS. f SA$fPLE STATIONS QUARTERLY P E R) AVIRACE (a) (b) RANCE TYPE ANALYSIS NUMBER AVERACE (a) (b) RANCE CR-B 01-07, 21-24 0.052 152/154 0.010-0.150 0.08 88/88 0.04-0.17 10/01/77-12/27/77 Air Par- 12/27/77-03/28/78 ticulates 0.17 140/143 0.01-1.6 0.13 143/143 0.01-0.31 03/28/78-06/27/78 (pCi/Cu.a.) 0.13 371/374 0.01-1.6 10/01/77-06/27/78 01/07, 21-24 0.050 11/11 3.028-0.074 0.08 10/11 0.05-0.14 10/01/77-12/27/77 Air Par- Be-7 0.02-0.09 12/27/77-03/28/78 0.06 10/11 ticulates 0.07-0.15 03/28/78-06/27/78 0.11 10/11 (pCi/Cu.a.) Be-7 0.08 30/33 0.02-0.15 10/01/77-06/27/78 01-07, 21-24 0/11 0.007 3/11 0.006-0.010 10/01/77-12/27/77 Air Par- Zr-95 LLD - 0.006 9/11 0.004-0.010 12/27/77-03/28/78 ticulates 0.005 5/11 0.003-0.006 03/28/78-06/27/78 (pC1/Cu.m.) 0.006 17/33 0.003-0.010 10/01/77-06/27/78 Ru-103 01-07, 21-24 LLD 0/11 - 0.004 1/11 0.004 10/01/77-12/27/77 Air Par-0.014 9/11 0.01-0.02 12/27/77-03/28/78 ticulates 1.1.D glL - 03/28/78-06/27/78 pCi/Cu.m.) 0.009 10/33 0 J04-0.020 10/01/77-06/28/78 Air Par- Ru-106 01-07, 21-24 LLD 0/11 - LLD 0/11 - 10/01/77-12/27/77 ticulates 0.012 8/11 0.01-0.02 12/27/77-03/28/78 LID 0/11 - 03/28/78-06/27/77 (pCi/Cu.m.) 0.012 8/33 0.01-0.02 10/01/77-06/27/78 Air Par- I-131 01-07, 21-24 11D 0/11 - LLD 0/11 - 10/01/77-12/27/77 ticulates 0.035 3/11 0.03-0.04 12/27/77-03/28/78 LID 0/11 - 03/28/78-06/27/78 (pC1/Cu.a.) 0.035 3/33 0.03-0.04 10/01/77-06/27/78 (a) Average of detectable seasurements or LLD when no detectable measurements (b) f is the fraction of detectable to total measurements vb
.y TTELED(NE ISOTOPES QUARTERLY RAor0 LOGICAL SL3StARIES VIRGINIA ELECTRIC AND POWER COW A'N NORT11 ANNA POWER STATION - MINERAL, VIRGINIA FROM JULY 1. 1978 TO srpT. 30 1974 QUARTERLY PERIOD:
S) SAMPLE STATIONS QUARTERLY f(b) PREVIOUS 3 QRTS. f PERIOD NUMBER AVERACE (a) (b) RANCE AVERACE (a) (b) RANCE _ TYPE ANALYSIS 01-07, 21-24 0.0015 0.0013-0.0018 0.0018 2/11 0.0018-0.0019 10/01/77-12/24 ,1 Air Par- Cs-137 4/11 ticulates 0.0024 7/11 0.002-0.004 12/27/77-03/28/78 (pCi/Cu.m.) 0.0032 10/11 0.003-0.004 03/28/78-06/27/78 0.0028 19/33 0.0018-0.0040 10/01/77-06/27/78 Air Par- Ce-141 01 07, 21-24 LLD 0/11 - LLD 0/11 - 10/01/77-12/27/77 ticulates 0.012 8/11 0.01-0.02 12/27/77-03/28/78 (pCi/Cu.m.) LLD 0/11 - 03/28/78-06/27/78 0.012 8/33 0.01 0.02 10/01/77-06/27/78 Air Par- Ce-144 01-07, 21-24 0.0089 3/11 0.006-0.011 0.018 9/11 0.0?7-0.026 10/01/77-12/27/77 ticulates 0.021 11/11 0.01-0.03 12/27/77-03/28/78 (pCi/Cu.m.) 0.030 10/11 0.02-0.04 03/28/78 06/27/78 0.023 30/33 0.01-0.04 10/01/77-06/27/78 p M (a) Average of detectable measurements or LLD when no detectable measurements (b) f is the fraction of detectable to total measurements . 9
+w
TTELEDfNE ISOTOPES QUARTERLY RADIOLOGICAL SIM% RIES VIRGINIA ELECTRIC AND POWER COMPANY NORT11 ANNA POWER STATION - HINERAL, VIRGINIA QUARTERLY PERIOD: FROM JULY 1, 1978 TO _SEl7 fMRTR 30.1978 f ) PREVIOUS 3 QRTS. f f) SAMPLE STATIONS QUARTERLY PERIOD NUMBER AVERACE (a) (b) RANu'E AVERACE (a) (b) RANCE TYPE ANALYSIS LLD 0/55 10/01/77-12/27/77 Charcoal I-131 01-07,21-24 LLD 0/154
- 0.070 9/143 0.04-0.12 12/27/77-03/28/78 LLD 0/143' - 03/28/77-06/27/78' O.070 9/143 0.04.0.12 10/01/77-06/27/78 (a) Average of detectable measurements or LLD when no detectable measurements (b) f is the fraction of detectable to total measurements
TTELEDYNE ISUIDPES NORTil ANNA POWER STATION E. WATER-PRECIPITATION STATION NUMBER 1 DATE COLL: J U LY AUGUS" SEPTEMBER RADIOCllEMICAL ANALYSIS: 5.70 inches 0.9 inch TOTAL RAINFALL 2.35 inches GR-B 1.3 +-0.1 E 01 pCi/ liter 1.6 +-0.2 E 01 pCi/ liter 4.1 +-0.2 E 01 PCi/ liter GR-B 7.8 +-0.6 E-01 nCi/sq.m. 2.3 +.0.3 C 00 nC1/sq.m. 9.4 +-0.5 E-01 nCi/ sq.m. m
NORTil ANNA POWER STATION TTELED(NEISOTOPES DIRECT EXPOSURE TLD NET EXPOSURE 9,2 MONTHS Tit!RD QUARTER FOURTil QU AR'iE.1 FIRST QUARTER SECOND QUARTER 09/20/77-06/27/78 06/27/78-09/26/78 mR/ day 12/27/77-03/28/78 03/28/78-06/27/78 mr/ day mR mR/d ay mR mR/ day mr STATION mR 78.4 0.28 0.33 20.9 0.23 01 18.7 0.205 29.8 58.4 0.21 0.27 12.4 0.14 02 13.8 0.152 24.8 61.3 0.22 0.29 14.8 0.16 03 12.9 0.142 26.4 60.7 0.22 0.29 14.1 0.15 04 14.3 0.157 I6.3 61.6 0.22 28.7 0.32 17.1 0.19 05 13.9 0.153 0.32 89.5 0.37 22.4 0.25 06 19.9 0.219 33.4 62.1 0.22 0.31 13.9 0.15 07 15.3 0.168 28.5 0.22 62.7 0.26 17.8 0.20 14.8 0.164 23.4 21 80.6 0.29 0.39 19.1 0.21 22 19.5 0.214 35.3 86.4 0.31 18.2 0,20 ? 20.3 0.223 25.4 0.28 y 23 54.1 0.19 0.24 14.9 0.16
*24 12.3 0.135 21.5 68.8 0.25 0.30 16.9 0.19 16 0.18 27.6 MEAN - 0.19-0.32
- 0.24 0.39 - 0.14-0.25 (RANGE) 12-20 0.14-0.22 - 11/11 11/11 11/11 DETECTION / 11/11 11/11 -
TOTAL ; _ __._ _ the average daily exposure of the dosimeters at the stations The rediation dose is calculated as net mR/ day and theisNorth Anna Power Station of the Virginia and Electric and Power in North Anna. The dosimeters were' annealed at dose. After exposure collection of the field Company prior to exposure in the field thus cancelling an in-transitdosimeters only were annealed and shipped with the dosimeters and prior to shipment to Teledyne Isotopes, the control The net mR/ day is the gross mR/ day of the field dosimeters to TI providing a measure of the return in-transit dose. field dosimeters minus the return in-transit dose of the control dosimeters.
- Control location.
TTELED(NE ISOTOPES QUARTERLY RADIOLDGICAL St%NARIES VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION - MINERAL, VIRGINIA SEPTEMBER 30, 1978 FROM bY I' I' TO QUARTERLY PERIOD: f( ) PREVIOUS 3 QRTS.
* )
SAMPLE STATIONS QUARTERLY
..ANGE AVERAGE (a) (b) RANGE PERIOD TYPE ANALYSIS NUMBER AVERAGE (a) (b) 0.18 11/11 0.14-0.23 10/01/77-12/31/77
"""" 01-07,21-24 0.19 11/11 0.14-0.2S 0.18 11/11 0.14-0.22 01/01/78-03/28/78 TLD ! * *
(prem/ day) 0.22 33/33 0.14-0.039 10/01/77 06/26/78 7 a (a) Average of detectable measurements or LLD when no detectable measurements . (b) f is the fraction of detectable to total measurements
NORTH ANNA POWER STATION TTELEDYNE ISOTOPES WATER - SURFACE (pCi/ liter) STATION NUMBER 08 LISCilARGE COOLING WATER AUGUST SEPTEMBER DATE COLLECTED: JULY RADIOCllEMICAL ANALYSIS: L.T. 5. E-01 L.T. 5. E-01 I-131 L.T. 2. E-01 GAMMA SPECTRUM ANALYSIS: L.T. 7. E 01 L.T. 9. E-01 BE-7 L.T. 7. E 01 L.T. 2. E 02 L.T. 2. E 02 K-40 L.T. 2. E 02 L.T. 7. E 00 L.T. 7. E 00 MN-54 L.T. 7. E 00 L.T. 8. E 00 L.T. 8. E 00 CO-58 L.T. 8. E 00 L.T. 2. E 01 L.T. 2. E 01 FE-59 L.T. 2. E 01 m L.T. 8. E 00 L.T. 8. E 00 CO-60 L.T. 7. E 00 h L.T. 2. E 01 L.T. 2. E 01 ZN-65 L.T. 2. E 01 L.T. 8. E 00 L.T. 9. E 00 ZR-95 L.T. 8. E 00 L.T. 9. E 00 L.T. 1. E 01 RU-103 L.T. 1. E 01 L.T. 7. E 01 L.T. 7. E 01 RU-106 L.T. 6. E 01 L.T. 6. E 01 L.T. 3. E 01 I-131 L.T. 3. E 01 L.T. 8. E 00 7 E 00 L.T. 7. E 00 CS-134 L.T. L.T. 7. E 00 L.T. 7. E 00 L.T. 7. E 00 CS-137 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 01 BA-140 L.T. 3. E 01 L.T. 2. E 01 L.T. 2. E 01 CE-141 L.T. 9. E 01 L.T. 6. E 01 L.T. 2. E 01 CE-144 L.T. 2. E 02 L.T. 1. E 02 L.T. 1. E 02 RA-226 L.T. 1. E 01 L.T. 2. E 01 TH-228 L.T. 1. E 01
TTELEDYNE ISOTOPES NORTl! ANNA POWER STATION WATER-SURFACE (pCl/ liter) STATION NUMBER 09 RESERVOIR WATER DATE COLLECTED: JULY AUGUST SEPTEMBER RADIOCi!EMICAL ANALYSIS: 1-131 L.T. 3. E-01 L.T. 2. E-01 L.T. 5. E-01 GAMMA SPECTRUM ANALYSIS: BE-7 L.T. 7. E 01 L.T. 7. E 01 L.T. 7. E 01 K-40 L.T. 1. E 02 L.T. 2. E 02 L.T. 2. E 02 MN-54 L.T. 6. E 00 L.T. 7. E 00 L.T. 6. E 00 CO-58 L.T. 8. E 00 L.T. 7. E 00 L.T. 8. E 00 FE-59 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 01 CO-60 L.T. 7. E 00 L.T. 7. E 00 L.T. 8. E 00 ZN-65 L.T. 1. E 01 L.T. 2. E 01 L.T. 2. E 01 ZR-95 L.T. 8. E 00 L.T. 7. E 00 L.T. 8. E 00 RU-103 L.T. 9. E 00 L.T. 9. E 00 L.T. 1. E 01 RU.106 L.T. 6. E 01 L.T. 6. E 01 L.T. 6. E 01 1 131 L.T. 3. E 01 L.T. 3. E 01 L.T. 5. E 01 CS-134 L.T. 7. E 00 L.T. 7. E 00 L.T. 6. E 00 CS-137 L.T. 7. E 00 L.T. 6. E 00 L.T. 6. E 00 BA-140 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 01 CE-141 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 01 CE-144 L.T. 7. E 01 L.T. 6. E 01 L.T. 6. E C1 - RA-226 L.T. 2. E 01 L.T. 1. E 02 L.T. 1. E 02 Tii-228 L '. T . 1. E 01 L.T. 1. E 01 L.T. 1. E 01
TTELEINNE ISOTOPES NORTH ANNA POWER STATION WATER / SURFACE (pC1/Ilter) 3RD QUARTER COMPOSITE STATION H-3 08 7.0 +-0.9 E 02 09 4.2 +-0.8 E 02 9
QUARTERLY RADICIAGICAL SLSNARIES TTELEDYNE ISOTOPES VIRGINIA ELECTRIC AND POWER COMPANY NORT'l ANNA POWER STATION - MINERAL, VIRGINIA TO c:r pT . 30 1974 FROM JULY 1,1978 QUARTERLY PERIOD: II PREVIOUS 3 QRTS, f N f RANCE PERIOD SAMPLE STATIONS QUARTERLY RANCE AVLRACE (a) (b) ANALYSIS NUMBER AVERAGE (a) (b) TYPE L7 D 0/3 - 10/01/77-12/31/77 Water I-131 03 LLD 0/3 - 01/01/78-03/31/78 LLD 0/3 - Surface LLD 0/3 - 03/31/78-06/30/78 Discharge
**# LID 0/9 - 10/01/77-06/30/78 700 1/1 - 230 4/4 200-250 10/01/77-12/31/77 08 li-3 110 1/1 .- 01/01/78-03/31/78 Lt.D 0/1 - 04/01/78-06/30/78 206 5/6 200-250 10/01/77-06/30/78 0/3 LLD 0/4 - 07/14/77-12/19/77 Cama 08 LLD -
LLD 0/3 - 01/01/78-03/31/78 Isotopic 04/01/78-06/30/78 LLD 0/3 - LLD 0/10 - 07/14/77-06/30/78 0/3 - LID 0/3 - 10/01/77-12/31/77 Water 1-131 09 LLD LLD 0/5 - 01/01/78-03/31/78 Surface LLD 0/3 - 03/31/78-06/30/78 Reservoir (E '#) LLD 0/9 - 10/01/77-06/30/78 09 420 1/1 - 230 4/4 200-250 10/01/77-12/31/77 f f-3 01/01/77-12/31/77 LLD 0/1 - 380 1/1 - 01/01/78 06/30/78 260 S/5 200-380 03/31/78-06/30/78 Gamma 07/14/77-12/19/77 Isotopic 09 LL'3 0/3 - LLD 0/4 - LLD 0/3 - 01/01/78-03/31/78 LLD 0/3 - 03/31/78-06/30/78 LLD 0/10 - 07/14/77-06/30/78 (a) Average of detectable measurements c-r LLD when no detectable :nessurements (b) f is the fraction of detectable to total measurements
NORTH ANNA POWER STATION - WTE1EDYNE lm WATER - RIVER (pC1/11ter) STATION NUMBER 11 DATE COLLECTED: 09/20 CAMMA SPECTRUM ANALYSIS: BE.7 L.T. 9. E 01 K-40 L.T. 1. E 02 MN-54 L.T. 7. E 00 CO-58 L.T. 9. E 00 FE-59 L.T. 2. E 01 CO-60 L.T. 8. E 00 ZN-65 L.T. 2. E 01 9 ZR-95 L.T. 1. E 01 m RU-103 L.T. 1. E 01 RU-106 L.T. 7. E 01 I-131 L.T. 6. E 01 CS-134 L.T. 8. E 00 CS-137 L.T. 8. E 00 BA-140 L.T. 3. E 01 CE-141 L.T. 2. E 01 CE-144 L.T. 7. E 01 RA-226 L.T. 2. E 02 TH-228 L.T. 1. E 01 TRITIUM ANALYSIS: H-3 ,8.7 +-0.8 E 02
TTELEDYNE ISOTOPES QUARTERLY RADIOLOGICAL SmitARIES VIP.GINIA ELECTRIC AND POWER COMPAW NOR'n! ANNA POWER STATION - MINERAL, VIRGINIA QUARTERLY PERIOD: FROM JULY 1,1978 TO SEPT. 30, 1978 f ) PREVIOUS 3 QRTS. f SAMPLE STATIONS QUARTERLY AVERAGE (a) (b) RANGE PERIOD TYPE ANALYSIS NUMBER AVERACE (a) (b) RANGE River 11- 3 11 870 1/1 - 230 4/4 200-250 10/01/77-12/31/77 Water LLD 0/1 - 01/01/78-03/31/78 North Anna 100 1/1 - 03/31/78-06/30/78
# 204 S/6 200-250 01/01/77-06/30/78
/11ter Gama Isotopic 11 LLD 0/1 - Lt.D 0/4 -
07/14/77-12/19/77 LLD 0/1 - 01/01/78-03/31/78 LLD 0/1 - 03/31/78-06/30/78 LLD 0/6 - 07/14/77-06/30/78 ? (a) Average of detectable measurements or LLD when no detectable measurements (b) f is the fraction of detectable to total measurements
.m.,.
, ~N e
' \
l b 1
'm Yx }' K
/a "j i
__ g g
TTELEDYNE ISOTOPEG NORTil ANNA POWER STATION WATER-GROUND STATION 01 GAMMA SPECTRUM ANALYSIS: 09/26 BE-7 L.T. 8. E 01 K-40 L.T. 1. E 02 L.T. 6. E 00 MN-54 CO-58 L.T. 8. E 00 FE-59 L.T. 2. E 01 L.T. 6. E 00 CO-60 L.T. 1. E 01 ZN-65 L.T. 9. E 00 ' ZR-95 -J L.T. 1. E 01 RU-103 L.T. 6. E O l' RU-106 L.T. 1. E 02 1-131 L.T. 7. E 00 CS-134 L.T. 6. E 00 CS-137 BA-140 L.". 4 E 01 CE-141 L.T. 3. E 01 L.T. 7. E 01 CE-144 RA-226 L.T. 1. E 02 L.T. 1. E 01 Til-228 L.T. 1.0 E 02 11 - 3
TTELEDYNE ISOTOPES NORTH ANNA POWER STATION SEDIMENT / SILT (pci/gm DRij STATION NU.SBER 08 DATE COLLECTED: 09/20 CAMMA SPECTRUM ANALYSIS: BE-7 L.T. 5. E-01 K-40 3.81+-0.76E 00 MN-54 L.T. 5. E-02 CO-58 L.T. 5. E-02 FE-59 L.T. 1. E-01 CO-60 L.T. 5. E-02 ZN-65 L.T. 1. E-01 9 ZR-95 L.T. 6. E-02 RU-103 L.T. 6. E-02 RU-106 L.T. 4. E-01 1-131 L.T. 2. E-01 CS-134 t.T. 5. E-02 CS-137 L.T. 6. E-02 BA-140 L.T. 1. E-01 CE-141 L.T. 1. E-01 CE-144 L.T. 4. E-01 RA-226 L.T. 1. E 00 TH-228 7.86+-0.79E-01 ,
NORTH ANNA POWER STATION TTELEDYNE ISOTOPES SEDIMENT / SILT (pCi/gm DRY) STATION NUMBER 09 DATE COLLECTED: 09/20 GAMMA SPE'CTRUM AN ALYSIS : BE-7 L.T. 4. E-01 K-40 2.96+-1.92E 00 MN-54 L.T. 4. E-02 CO-58 L.T. 4 E-02 FE-59 L.T. 1. E-01 CO-60 L.T. 4. E-02 p ZN-65 L.T. 9. E-02 0 ZR-95 L.T. 5. E-02 RU-103 L.T. 5. E-02 RU-106 L.T. 4 E-01 I-131 L.T. 2. E-01 CS-134 L.T. 5. E-02 CS-137 3.51+-0.49E-01 BA-140 L.T. 2. E-01 CE-141 L.T. O. E-02 CE-144 L.T. 3. E-01 RA-226 L.T. 6. E-01 TH-228 L.T. 6. E-02
TTELEDYNE ISOTOPES NORTH ANNA POWER STATION S EDIHENT/SI LT (pC1/rm DRY) STATION NUMBER 11 DATE COLLECTED: 09/20 GAMMA SPECTRUM ANALYSIS: BE.7 L.T. 7. E-01 K-40 1.67+-0.17E 01 MN-54 L.T. 8. E-02 CO-58 L.T. 8. E-02 FE-59 L.T. 2. E-01 n CO-60 L.T. 8. E-02 L IN-65 L.T. 2. E-01 2R-95 L.t. 1. B-01 RU-103 L.T. 1. E-01 RU-106 L.T. 8. E-01 1-131 L.T. 3 E-01 CS-134 L.T. 1. E-01 CS-137 L.T. 9. E-02 BA-140 L.T. 3. E-01 CE-141 L.T. 1. E-01 CE-144 L.T. 5. E-01 RA-226 L.T. 1. E 00 TH-228 L.T. 1. E-01 9
= * -w. === * -
NORT!! ANNA POWER STATION ,
'WTELED(NE ISOTOPES SEDIMENT / SILT (pC1/gm DRY)
ANNUAL COMPOSITE 03/22 09/20 STATION SR-89 SR-90 08 L.T. 9. E-01 L.T. .t . E-02 09 L.T. 8. E-01 6.0 +-2.6 E-02 10 L.T. 8. E-01 L.T. 4. E-02 9
TTELEDYNE ISOTOPES gogyn AssA power STATION SOIL (uCi/gm DRY) STATION NUMBER 09 DATE COLLECTED: 09/20 GAMMA SPECTRUM ANALYSIS: BE-7 L.T. 4 E-01 K-40 4.59+-0.73E 00 MN-54 L.T. 5 E-02 10-58 L.T. 5. E-02 IE-59 L.T. 1. E-01 CO-60 L.T. S. E-02 Q " L.T. 1. E-01 2N-65 ZR-95 L.T. 6 E-02 RU-103 L.T. 5. E-02 RU-106 L.T. 4. E-01 1-131 L.T. 2. E-01 CS-134 L.T. 6 E-02 CS-137 2.34+-0.47E-01 BA-140 L.T. 1. E-01 CE-141 L.T. 1. E-01 CE-144 L.T. 4 E-01 RA-226 2.40*-0.86E 00 TH-228 1.56+-0.16E 00
TTEEDYNE tSOTOPES gog73 AnyA powEn STATION SOIL (pC1/gm DRY) ANNUAL COMPOSITE 03-22-09/20 STATION Sr-89 Sr-90 09 L.T. 6. E-01 L.T. 4. E-02 ? O . 9
-* --- ,- = . ._%,
TTELEINNE ISOTOPES QUARTERLY RADIOLOGICAL SWNARIES VIRGINIA ELECTRIC AND POWER COMPANY NOR711 ANNA POWER STATION - HINERAL, VIRGINIA FROM SElHNBER 1978 TO QUARTERLY PERIOD: PREVIOUS 3 QRTS. f STATIONS QUARTERLY f PER100 C0k9ENT SAMPLE AVER.*/,E (a) (b) RANCE TYPE ANALYSIS NGSER AVERAGE (a) (b) RANCE 17 7/3 6-44 03/78 semi annual e nt K-40 8,9,11 8 3/3 3-17 e llection (pC1/gm dry) 0.08 /3 0.05-0.12 03/78 semi annual Cs-137 8,9,11 0.35 1/3 - collection 2/3 0.7 1.4 03/78 semi annual LID 0/3 - 1.0 collection Ra-2?6 8,9,11 3/3 0.53-0.90 03/78 semi annual 1/3 - 0.74 Th-228 8,9,11 0.79 collection Composite of 1978 collections 03/78-09/78 semi annual S r-89 8,9,11 L1D 0/3 - collection {
- Sr-90 8,9,11 0.06 1/3 - Compodte of 1978 collections 03/78-09/78 semi annual collection Soll - 03/78 semi annual
- 7.3 1/1 collection shoreline K-40 09 4.6 1/1 (pel/ p dry) semi annual
- LLD 0/1 - 03/78 Cs-137 09 0.23 1/1 collection
- 03/78 semi annual LLD 0/1 Ra-226 09 2.4 1/1 -
collection
~ 03/78 semi annual 0.26 1/1 Th-228 09 1.6 I/1 -
collection
- Composite of 1978 collections 03/78,09/78 ggigt Sr-89 09 LLD 0/1 Composite of 1978 collections 03/78,09/78 semi annua S r-90 09 LLD 0/1 -
collection (a) Average of detectable measurements or LLD when no detectable measurements (b) f is the fraction of detectable to total measurements . O
TTELEDYNE ISOTOPES NORTH ANNA POWER STATION MILK (pCi/ liter) STATION NUMBER 12 DATE COLLECTED: JULY AUGUST SEPTEMBER RADI0 CHEMICAL ANALYSIS: I-131 L.T. 3. E-01 L.T. 2. E-01 L.T. S. E-01
~
GAMMA SPECTRUM ANALYSIS: BE-7 L.T. 7. E 01 L.T. 8. E 01 L.T. S. E 01 K-40 1.20+-0.17E 03 1.21+-0.14E 03 1.23+-0.15E 03 MN-54 L.T. 7. E 00 L.T. 8. E 00 L.T. 6. E 00 n CO-58 L.T. 7. E 00 L.T. 8. E 00 L.T. 6. E 00 FE-59 L.T. 2. E 01 L.T. 2. E 01 L.T. 1. E 01 CO-60 L.T. 8. E 00 L.T. 9. E 00 L.T. 7. E 00 ZN-65 L.T. 2. E 01 , L.T. 2. E 01- L.T. 1. E 01 ZR-95 L.T. 8. 5 00 L.T. 9. E 00 L.T. 7. E 00 RU-103 L.T. 9. E 00 L.T. 1. E 01 L.T. 7. E 00 RU-106 L.T. 7. E 01 L.T. 8. E 00 L.T. 6. E 01 I-131 L.T. 2. E 01 L.T. 2. E 01 L.T. 1. E 01 CS-134 L.T. 8 E 00 L.T. 8 E 00 L.T. 7 E 00 CS-137 L.T. 9. E 00 L.T. 8 E 00 9.90+-5.74E 00 L.T. 1. E 01 L.T. 8. E 00 BA-140 L.T. 1. E 01 CE-141 L.T. ~. E 01 L.T. 2. E 01 L.T. 2. E 01 CE-144 L.T. 9. E 01 L.T. 7. E 01 L.T. 7. E 01 RA-226 2. L.T. 2. E 02 L.T. 2. E 02 L.T. E 02 TH ~ 8 L.T. 1. E 01 L.T. 2. E 01 L.T. 1. E 01
TTELEDYNE ISOTOPES NORTH ANNA POWER STATION MILK (pC1/1 iter) STATION NUMBEt 13 DATE COLLECTED: JULY AUGUST SEPTEMBER RAD!0 CHEMICAL ANALYSIS: 1-131 L.T. 3. E-01 L.T. 3. E-01 L.T. 5. E-01 GAMMA SPECTRUM ANALYSIS: BE 7 L.T. 6. E 01 1.T. 6. E 01 L.T. 8. E 01 K-40 9.29+-1.30E 02 1 10+-0.13E 03 1.04+-0.15E 03 MN-54 L.T. 6. E 00 L.T. 6. E 00 L.T. 8. E 00 CO-58 L.T. 6. E 00 L.T. 7. E 00 L.T. 8. E 00 FE-59 L.T. 1. E 01 L.T. 2. E 01 L.T. 2. E 01 CO-60 L.T. 7. E 00 L.T. 6. E.00 L.T. 9. E 00 ri h IN-65 L.T. 1. E 01 L.T. 1. E 01 L.T. 2. E 01 IR-95 L.T. 7. E 00 L.T. 7. E 00 L.T. 8. E 00 RU-103 L.T. 7. E 00 L.T. 8. E 00 L.T. 1. E 01 RU-106 L.T. 6. E 01 L.T. 6. E 01 L.T. 7. E 01 1-131 L.T. 1. E 01 L.T. 2. E 01 L.T. 2. E 01 CS-134 L.T. 7 E 00 L.T. 7. E 00 L.T. 9. E 00 CS-137 L.T. 7. E 00 L.T. 8. E 00 L.T. 9. E 00 BA-140 L.T. 9. E Ot '.T. 1. E 01 L.T. 1. E 01 CE-141 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 03 CE 144 L.T. 7. E 01 L.T. 7. E 01 L.T. 9. E 01 RA-226 L.T. 2. E 02 L.T. 2. E 02 L.T. 2. E 02 TH-228 L.T. 1. E 01 L.T. 1. E 01 L.T. 2. E 01
~
W G
T TELEDYNEISOTOPES NORTH ANNA POWER STATION MILK (pcl/ liter) STATION NUMBER 14 DATE CCLLECTED: JULY AUGUST SE*TEMBER RADIOCHEMICAL ANALYSIS: I-131 L.T. 4 E-01 L.T. 3. E-01 L.T. 3. E-01 GAMMA SPECTRUM ANALYSIS: BE-7 L.T. 8. E 01 L.T. 6. E 01 L.T. 8. E 01 K-40 1.05+-0.14E 03 1.07+-0.13E 03 1.14+-0.23E 03 MN-54 L.T. 8. E 00 L.T. 6 E 00 L.T. 8. E 00 CO-58 L.T. 8. E 00 L.T. 7. E 00 L.T. 8. E 00 n FE-59 L.t. 2. t 01 L.T. 2. t 01 L t. 2. E 01 L. . " CD-60 Lat. 8. t 00 L t. 1. t 00 L t. 8. E 00 ZN-65 L.T. 2. B di L.t. 2. B Of Lat. 2. t 01 ZR-95 L.T. 8. t 00 L t. 1. t 00 Lit. 8. E 00 RU-103 L.T. 1. t 01 Lit. 8. t 00 L.T. 1. E 01 RU-106 L.t. 8. E 01 L t. 8 t 01 Ls. 8. E 01 1-131 L.T. 2. E 01 L.T. 2. t 01 L.T. 1. E 01 CS-134 L.T. 9. E 00 L.T. 7. E 00 L.T. 9. E 00 CS-137 1.16+-0.52E 01 9.77+-4.92E 00 L.T. 1. E 01 BA-140 L.T. 1. E 01 L.T. 1. E 01 L.T. 1. E 01 CE-141 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 01 CE-144 L.T. 9. E 01 L.T. 6. E 01 L.T. 7. E 01 RA-226 L.T. 2. E 02 L.T. 1. E 02 L.T. 2. E 02 Tl!-228 L.T. 2. E 01 L.T. 1. E 01 L.T. 1. E 01
NORTil ANN A POWER STATION TTELEDYNE ISOTOPES MILK (PCl/ liter) 3RD QUARTER COMPOSITE ' ' Sr-89 Sr-90 STATION L.T. 5. E 00 4.2 +-0.6 E 00 12 L.T. 3. E 00 3.6 +-0.5 E 00 13 L.T. 6. E 00 5.5 +-0.6 E 00 14 7
~
TTELEDYNE ISOTOPES QUA".TERLY RADIOLOGICAL StM4 ARIES VIRCINIA ELECTRIC AND POWER COMPANY NOR111 ANNA POWER STATION - MINERAL, VIRGIN!A PROS! JULY 1, 1978 TO St.PT. 30, 1978 QUARTERLY PERIOD: ED) PRLV10tlS 3 QRTS. f EN SAMPLE STATIONS QUARTERLY f AVERAGE (a) (b) RANCE PERIOD TYPE ANALYSIS NtAmER AVERAl:n (a) (b) RANCE LI.D 0/5 - 10/01/77-12/31/77 Milk 1-131 12, 13, 14 L1D 0/9 - 0/9 - 01/01/78-03/31/78 LLD (pci/ liter) 1.LD 0/9 - 04/01/78-06/30/78 LLD 0/23 - 10/01/77-06/30/78
- - - None Sr-89 12, 13, 14 L1D 0/3 -
0/3 01/01/78-03/31/78 LID - LLD 0/3 - 04/01/78-06/30/78 LtD 0/6 - 01/01/78-06/30/78 3.6-5.5 3.8 4/4 3.6-4.3 10/01/77-12/31/77 Sr-90 12, 13, 14 4.4 3/3 2.6-4.4 01/01/78-03/31/78 3.6 3/3 3.2 3/3 2.7-3.9 04/01/78-06/30/78 3.6 10/10 2.6-4.4 10/01/77-06/30/78 1023-1213 1142 5/5 1080-1240 10/01/77-12/31/77 K-40 12, 13, 14 1108 9/9 8,9 1070-1300 01/01/78-03/31/78 1176 1087 9/9 843-1240 04/01/78-06/30/78 1132 22/23 843-1300 10/01/77-06/30/78 9.9-11 9.0 5/5 6.6-12 10/01/77-12/31/77 Cs-137 12, 13, 14 10 3/9 9.2-12.3 01/01/78-03/31/78 10.7 2/9 11 4/9 7.7-16 04/01/78-06/30/78 10.0 11/23 6.6 16 10/01/77 06/30/78 (a) Average of detectable measurements or LLD when no detectable measurements (b) f is the fraction of detectable to total messorements
TTELEDYNE ISOTOPES NORTH ANNA POWER STATION FOOD / GARDEN CROPS (pC1/gm WET) STATION NUMBER 23 DATE COLLECTED: 09/05 GAMMA SPECTRUM ANALYSIS: BE-7 1.40+-0.17E 00 K-40 5.79+-0.58E 00 MN-54 L.T. 2. E-02 CO-58 L.T. 2. E-02 n M L.T. E-02 FE-59 5. CO-60 L.T. 2. E-02 ZN-65 L.T. 5. E-02 ZR-95 L.T. 2. E-02 ZR-95 L.T. 2. E-02 RU-103 L.T. 2. E-02 RU-106 L.T. 2. E-01 1-131 L.T. 4. E-02 CS-134 L.T. 2. E-02 CS-137 L.T. 2. E-02 BA-140 L.T. 3. E-02 CE-141 L.T. 2. E-02 CE-144 L.T. 1. E-01 RA-226 L.T. 2. E-01 Tit-228 L.T. 2. E-02 e
+
TTELEDYNE ISOTOPES NORTH ANNA POWER STATION FOOD / GARDEN CROPS (pci/gm WET) STATION NUMBER 21 DATE COLLECTED: 09/05 GAMMA SPECTRUM ANALYSIS: BE-7 3.85+-0.95E-01 K-40 5.69+-0.57E 00 MN-54 L.T. 2. E-02 CO-58 L.T. 1. E-02 FE-59 L.T. 4. E-02 CO-60 L.T. 2. E,-02 ZN-65 L.T. 4. E-02 ZR-95 L.T. 1. E-02 R'.1- 10 3 L.T. 2. E-02 RU-106 L.T. 1. E-01 I-131 L.T. 4. E-02 CS-134 L.T. 2. E-02 C3-137 L.T. 1. E-02 BA-140 L.T. 3. E-02 CE-141 L.T. 2. E-02 CE-144 L.T. 7. E-02 CE-144 L.T. 7. E-02 RA-226 L.T. 2. E-01 TH-228 L.T. 2. E-02
TTELEINNE ISOTOPES QUARTERLY RADIOLOGICAL St43tARIES VIRGIN!A ELECTRIC AND POWLR COMPANY NORT11 ANNA l'0WER STATION - MIN!.RAL, VIRGIN! A QtlARTLRLY PERIOD: FROM SFPTfMBTR 197R TO SAMPLE STATIONS f(b) PREVIOUS 3 QRTS. f I QUARTERLY TYPE ANALYSIS NtlMnt:R AVERAGE (a) (b) RANGE AVERAGE (a) (b) RANCE PERIOD IOOD/CARDEN BE-7 21,23 0.90 2/2 0.4-1.4 ANNilAl.LY AT IIARVtiST SEPT.1978 crops (pCi/gm wet) K-40 21,23 5.74 2/2 5.69-5.79 ANNUAI.t.Y AT llARVEST SEIT.lD78 Cs-137 21,23 Lt.D 0/2 - 7 ?: (a) Average of detectable measurements or LLD when no detectable measurements (b) f is the fraction of detectable to total measurements , O
e e TTELEDYNE ISOTOPES QUARTERLY RADIOLOGICAL SIMfARIES VIRGINIA ELECTRIC AND POWER COMPANY NORTil ANNA POWER STATION - MINERAL, VIRGINIA FROM APRIL 1978 g QUARTERLY PERIOD: f E3 PRLVIOUS 3 QRTS. f II SAMPLE STATIONS QUARTERLY AVERAGE (a) (b) RANCE PERIOD TYPE ANALL S NtNBER AVERAGE (a) (b) RANCE FISit K-40 09,10 LLD 0/2 - Analyzed annually (pCi/gm wet) Cs-137 09,10 0,05 1/2 - Analyzed annually 9 (a) Average of detectable measurements or LLD when no detectable measurements (b) f is the fraction of detectable to total measurements}}