ML20093A320

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Annual Radiological Environ Monitoring Rept,1983
ML20093A320
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 12/31/1983
From: Sinclair J
VERMONT YANKEE NUCLEAR POWER CORP.
To: Murley T
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
FVY-84-68, NUDOCS 8407100332
Download: ML20093A320 (63)
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ANNUAL RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

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June 1984 N

" Prepared by: Yankee Atomic Electric Company Environmental Engineering Department 1 1671 Worcester Road Framingham, Masrachusetts 01701

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TABLE OF CONTENTS P_aje... .

,1 LIST OF TABLES.................................................... iii.

LIST OF FIGURES................................................... . 5y < ,

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1.0 INTRODUCTION

...................................................... 1

~ ' l 2- i 2.0 ENVIRONMENTAL SURVEILLANCE PR0 GRAM................................ ,:n <, .- e f

3.0

SUMMARY

OF 1983 ENVIRONMENTAL DATA................................ 9 .- ;r ,j

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A. Air Particulate...............................................' 'll' 15 / ' -

B. Charcoal Filter............................................... +

C. Mi1k.......................................................... , 17

- -C D. Mixed Vegetation.....................'........................-.< 27. .'

25 E. Food Crop..................................................... "

Meat Poultry, Eggs.................................... . . . . 28- j F. . _

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G. Silage...................................................,. ,

H. Ground Water..................................................-/ 34 37 I. River Water................................................... , ,

Aquatic Vegetation............................................ 40 e J.

43-K. Sediment......................................................

L. Finfish.......................................................

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M. Direct Rh11stion.................................../.6........ ~

49 4.0 QUALITY ASSURANCE PR0 GRAM...............................".... . . . . . 5 3 ,'. .

5.0

SUMMARY

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57 REFERENCES......... ;.............................................,- _s

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LIST OF TABLES

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Number Title Page 2.1 Radiological Environmental Surveillance Program............. 3 2.2 Radiological Environmental Surveillance Locations........... 4

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3.1 Sum.ury of Direc t Radiation Measurements , 1983. . . . . . . . . . . . . . 51 3.2 Ratio of Zone 1 to Zone 2 Exposures......................... 52 4.1 EPA Interlaboratory and Intralaboratory Results............. 54 iff ~~y 4 Rg r j

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LIST OF FIGURES Number Title Page 2.1 Environmental Radiological Monitoring Locations in Close Proximity to Vermont Yankee................................. 6 2.2 Environmental Radiological Monitoring Locations Within 7

5 Kilometers of Vermont Yankee.............................

a 2.3 Environmental Radiological Monitoring Locations Greater Than 5 Kilometers from Vermont Yankee....................... 8 t

  • 3.1 Cross Beta Measurements of Air Particulate Filters at Vermont Yankee.............................................. 12 Cesium-137 in Cou Milk at Vermont Yankee.................... 18 3.2 Strontium-90 in Cow Milk at Vermont Yankee.................. 19 3.3

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1.0 INTRODUCTION

The radiological environmental surveillance program at Vermont Yankee has been designed and carried out with specific objectives in mind. They are as follows:

- To provide an early indication of the appear,/>ce or accumulation of any radioactive material in the environment caused by the operation of the nuclear power station.

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- To provide assurance to regulatory agencies and the public that the station's environmental impact is known and within anticipated limits.

- To verify the adequacy and proper functioning of station effluent controls and monitoring systems.

To provide an estimate of actual radiation exposure to the surrounding population.

- To provide standby monitoring capability for rapid assessment of.

risk to the general public in the event of unanticipated or accidental releases of radioactive material.

During 1983, as in the past, Aquatec, Inc. collected all of the aquatic environmental samples, while the Chemistry and Health physics staff collected the bulk of the terrestrial environmental samples and processed all environmental thermoluminescent dosimeters (TLDs) for direct radiation measurements. After the initial processing, all non-TLD samples were sent to the Yankee Atomic Environmental Laboratory in Westboro, Massachusetts for further processing and radionuclide analysis. This report presents a summary

-of the findings of the radiological environmental surveillance program for 1983. -

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2.0 ENVIRONMENTAL SURVEILLANCE PROGRAM In this section, Table 2.2 outlines the surveillance program as required by the plant Technical Specifications. Table 2.2 lists the sampling ctations and their specific locations (distances are measured from the conter cf the Containment Building). The monitoring locations are shown on maps in Figures 2.1 through 2.3.

Below are listed the two-letter media codes and what they represent:

AP Air Particulate CF Charcoal Filter TM Milk WG Ground Water WR River Water TG Mixed Vegetation TC Silage TF Food Crop TZ Meat, Poultry, Eggs TS Soil SE Sediment FH Finfish AV Aquatic Vegetation GM Direct Radiation (TLD) 4

k-Table 2.1 1

Vermont Yankee Radiological Environmental Surveillance Protram h

Media Samp11nt Frequency Required Analyses Air Particulate (AP) - Weekly Gross beta, Sr-89/90 (2)

. - Quarterly Composite Gamma spectroscopy b

Charcoal Filter (CF) - Weekly I-131

$ Milk (TM) - Monthly Gamma spectroscopy, I-131

- Quarterly Composite Sr-89/90 Mixed Vegetation (TG) - Quarterly (1) Gamma spectroscopy Food Crop (TF) - Annually (5) Gamma spectroscopy, I-131 on green leafy portions of vegetables Heat. Poultry, Eggs (TZ) - Annually (4) Camma spectroscopy Silage (TC) - Annually (5) Gamma spectroscopy Ground Water (WG) - Quarterly Gross beta, H-3, gamma spectroscopy, Sr-89/90 (2)

- Once Per 3 Years (3) Ra-226 River Water (WR) - Monthly (1) Gross beta, gamma spectroscopy

- Quarterly Composite H-3, Sr-89/90 (2)

Aquatic Vegetation (AV) - Semiannually Gamma spectroscopy, Sr-89/90 (2)

Soil (TS) - Once Per 3 Years (3) Camma spectroscopy, SR-89/90 (2)

Sediment (SE) - Semiannually Gamma spectroscopy, Sr-89/90 (2)

Finfish (FH) . - Semiannually (1) G.amma spectroscopy, Sr-89/90 (2)

Direct Radiation (GM) - Monthly Integrated gamma dose (1) Collection frequency dependent upon availability of samples during winter.

(2) Performed whenever plant-related Cs-137 concentration is 10K non-plant-related Cs-137 concentration.

(3) Not due in 1983.

(4) Subject to availability at end of grazing season.

(5) Collected at harvest time in reasonable proximity to specified location; <

subject to availability.

s Tabic 2.2 Vermont Yankee Radiological Environmental Surveillance Locations Distance Station Code From Plant Direction (Media - Sta. No.) Station Description Zone * (km) From Plant AP/CF/TG-10 Hinsdale, NH 1 1.2 NE AP/CF/TG-11 N. Hinsdale, NH 1 3.6 NNW AP/CF/TG-12 Hinsdale Substation 1 3.1 E AP/CF/TG-13 River Station No. 3.3 1 1.9 SSE AP/CP/TG-14 Fairman Road 1 2.4 SW AP/CF/TG-15 Tyler Hill 1 3.4 WNW AP/CF/TG-21 Hegback Mountain 2 25.0 WNW AP/CF/TG-22 Spofford Lake,'NH 2 16.1 NNE AP/CF/TC-23 Northfield, MA 2 11.3 SSE TM/TC-11 Miller Farm 1 0.8 WNW TM/TC-12 Whitaker Farm 1 2.6 S TM/TC-13 Newton Farm 1 5.1 SSE T?!/TC-21 Brattleboro Dairy 2 15.0 N TF-11 Miller Farm 1 0.8 WNW TF-21 Northfield, MA 2 8.0 SE TZ-99 Miller Farm 1 0.8 WNW WG-11 VY Plant Well 1 0.0 On-Site WG-12 Vernon Nursing Well 1 2.0 SSE WG-13 VT No. 32 Well 1 1.8 SE WG-21 Brattleboro Well 2 12.1 NNW WR/SE/FH-11 River Station No. 3.3 1 1.9 Down River WR/SE/FH-12 Plant Discharge 1 0.0 On-Site WR/SE/FH-21 Route 9 Brid5e 2 12.8 Up River AV-11 Downstream Swamp 1 0.8 Down River AV-21 Upstream Swamp 2 0.8 Up River 4_

k Table 2.2 (continued)

Vermont Yankee Radiological Environmental Surveillance Locations O Distance Station Code From Plant Direction (Media - Sta. No.) Station Description Zone * (km) From Plant GM-1.0 Hinsdale, NH 1 1.2 NE GM-1.1 N. Hinsdale, NH 1 3.6 NNW GM-1.2 Hinsdale Substation 1 3.1 E GM-1.3 River Station No. 3.3 1 1.9 SSE GM-1.4 Fairman Road 1 2.4 SW GM-1.5 Tyler Hill 1 3.4 WNW

] GM-1.6 Site Boundary 1 0.160 NNW V

GM-1.7 Site Boundary 1 0.315 WNW r GM-1.8 Site Boundary 1 0.315 SSW GM-1.9 Site Boundary 1 0.450 S GM-1.10 Site Boundary 1 0.630 S GM-1.11 Site Boundary 1 0.920 S

, CM-1.12 Site Boundary 1 0.760 SSE GM-1.13 Site Boundary 1 0.480 SSE CM-1.14 Site Boundary 1 0.315 SE GM-1.15 Site Boundary 1 0.027 N GM-1.16 Site Boundary 1 0.395 NW GM-1.17 Vernon School 1 0.575 SSW GM-2.1 Hogback Mountain 2 25.0 WNW GM-2.2 Spofford Lake 2 16.1 NNE GM-2.3 Northfield, MA 2 11.3 SSE

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= - LILY POup TC-13 KILOPETERS Figure 2.2 Environmental Radiological Monitoring Locations within 5 Kilometers of Vermont Yankee

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l 3.0.

SUMMARY

OF 1983 ENVIPONMENTAL DATA j The following pages summarize the analytical results of all the environmental samples which were collected during 1983. Each environmental media category is presented as a separate subsection. A discussion of the  !

sampling program and results is followed by a table which summarizes the year's data for each category. The tables were generated by the computer program IRMAP. At the top of each table, ERMAP lists the units of rsasurement for each medium. The left hand column contains the radionuclide which is being reported, total number of analyses of that radionuclide, and the number of measurements which exceeds ten times the yearly average background value. The latter are classified as "non-routine" measurements.

The next celumn lists the Lower Limit of Detection (LLD) for those radionuclides which have detection capability requirements as specified in the USNRC's Bratich Technical Position (Rev. 1, 1979). (Guidance is not given for many of the radionuelides routinely measured and reported herein.) LLDs equal to or less than these values are achieved greater than 95 percent of the time.

Those sampling stations which are adjacent to the plant and which could conceivably be affected by the operation of Vermont Yankee are called

'" Indicator" or " Zone 1" stations. Distant stations, which are beyond plant influence are called " control" or " Zone 2" stations.

ERMAP calculates a set of statistical parameters for each radionuclide. This set of statistical parameters includes separate analyses for (1) the in61cator stations, (2) the control stations, and (3) the station having the highest annual mean concentration. For each of these three groups of data, ERMAP calculates:

o The mean value of all concentrations including negative values and values below LLD.

I o The square root of the mean square deviation. This is an estimate of the sample variance.

o The lowest and highest calculated concentration.

o The number of positive measurements (activity which is three times greater than the standard deviation) divided by the total number of measurements.

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Each single radioactivity measurement datum in this report is based on a single measurement and is reported as a concentration plus or minus a one standard deviation uncertainty. The quoted uncertainty term represents only the random uncertainty associated with the radioactive decay process (counting statistics), and not the propagation of all possible uncertaintics in the analytical procedure. Radioactivity is considered to be present in a sample When the concentration exceeds three times its associated standard deviation.

Expressed in another way, the measurement is considered to be statistically different than normal instrument background when the plus or minus three standard deviation range surrounding the measurement does not include zero.

Direct radiation measurements from thermoluminescent dosimeters are discussed in section 3 M.

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A) Air Particulate i Air monitoring stations are established at a total of nine locations. Six of these locations are ir.dicators, while the remaining three are control stations. Airborne particulates are collected by passing the air through a fiberglass filter. These filters are collected weekly and held for at least 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> before being analyzed for gross beta activity (indicated as GR-B in tables) to allow for the decay of radon and thoron daughter products. Weekly composite air filters from each location are analyzed quarterly for gamma emitting radionuclides.

Gross-beta counts (Figure 3.1) generally showed the same fluctuations at indicator stations as at controls, thereby indicating that any plant contribution was negligible. Cobalt-60 was detected, however, on the second quarter composite sample from station AP-13. A conservative dose analysis showed that an individual exposed to the detected concentration would have received a dose of less than 0.01 mrem to the lung (critical organ). No other gamma-emitting radionuclides were detected on the quarterly composite filters.

J During the week ending April 12, 1983, a sample was not co11ceted

- from Station AP/CF-13 due to the incorrect installation of a sampling line following pump maintenance (Licensee Event Report 83-13/3L).

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E)N!R9eENTAL RADIOLOGICAL PROCW SUMMRY VERMON7 YAt4IE NUCLEAR PWER STATICN. tGON. UT JAMARY - KCENfR 1983 NEDILM: AIR PMTICLLATE w !TS: Fct aj. n INDICATOR STATIONS STATION WITH HIGE ST M C0hTROL STATIONS M M H etittlet M el H H Hitett H H He H H Me H ie* H H H H ele RADIONUCLIDES M e M (NO. #$ LYSES) REQUIRED RmE STA. RANGE RANK (N[eHt0VTIE)* LLD NO. IETECTEDn NO. NO. DETECTED ** NO. ETECTED++

Gt-B (467) .01 ( 2.2 i .01E -2 14 ( 2.5 t .1)E -2 ( 2.2 1 .1)E -2

( 0) ( 5.5 - 495.0)E -4 ( l.0 - 4.8)E -2 ( 6.1 - 43.3)E -3

  • (307/311)* et 52/ 52)e a(156/156)e K-7 ( 36) ( 4.8 i .2)E -2 21 ( 5.3 i .5)E -2 ( 4.8 t .3)E -2

( 0) ( 2.8 - 6.6)E -2 ( 4.1 - 6.3)E -2 ( 3.4 - 6.3)E -2 et 24/ 24)* et 4/ 418 et 12/ 12)*

K-40 ( 36) ( 4.7 i 1.0)E -3 10 ( 6.9 i .9)E -3 ( 4.4 i .9)E -3

( 0) (-6.6 - 13.3)E -3 ( 4.7 - 8.6)E -3 ( l.2 - Il4.0)E -4 e( 2/ 24)* *( 1/ 4)e et 3/ 12)*

Ot-51 ( 36) ( 8.1 i 55.5)E -5 11 ( 2.9 t 1.6)E -3 (-7.2 t 6.3)E -4

( 0) (-4.9 - 6.7)E -3 (-1.1 - 6.7)E -3 (-5.1 - 1.8)E -3

  • ( 0/ 24)* *( 0/ 4)e et 0/ 12)e PW-54 ( 36) ( 2.4 t 4.4)E -5 10 ( l.3 1 1.5)E -4 (-1.1 t 4.1)E -5

( 0) (-4.6 - 4.01E -4 (-3.0 - 4.0)E -4 (-3.3 - 2.3)E -4 et 0/ 24)* ,

  • ( 0/ 4)e et 0/ 12)e C&-58 ( 36) (-3.5 t 5.4)E -5 13 ( l.4 t 1.3)E -4 (-7.6 & 7.4)E -5 d

( 0) (-5.7 - 4.01E -4 (-2.2 - 4.0)E -4 (-5.0 - 3.2)E -4 e( 0/ 24)e *( 0/ 4)e et 0/ 12)e FE-59 ( 36). ( 3.5 t 100.3)E -6 14 ( 2.1 t 2.9)E-4 ( 5.0 t 0.7)E -5

( 0) (-1.1 - 1.01E -3 (-3.3 - 9.8)E -4 (-3.8 - 6.1)E -4 et 0/ 24)* et 0/ 4)e et 0/ 12)*

CD-60 ( 36) ( !.3 i .9)E -4 13 ( 3.6 i 5.0)E -4 (-4.3 i 4.9)E -5

( 0) (-7.0 - 17.9)E -4 (-3.5 - 17.9)E -4 (-2.3 - 4.3)E -4 et 1/ 24)* et 1/ 4)e et 0/ 12)*

ZN-65 ( 36) (-1.7 i .8)E -4 21 ( l.2 1 2.5)E -4 (-2.0 t 1.3)E -4

( 0) (-9.2 - 7.0)E -4 (-3.4 - 7.8)E -4 (-1.0 - .8)E -3 et 0/ 24)* *( 0/ 4)e et 0/ 121e e NON4t0lITlE RETERS TO M IUS3 0F SEPARATE EASLFDENTS I41101 ERE CREATER T)%N TEN (10) TIES M MUtAX BACXCROLND FOR M PERICD OF M REPORT.

    • M FRACTION OF S4ftE MN.YSES YlELDING DETECTABLE MEASUREENTS (1.E. >3 STD KVIATIONS) IS INDICATED WITH et )*.

F EWIRGENTAL RAD 10LOGICli PROGRM Smr%RV VERW)NT YAWEE WCLEAR POWER STATION. UERY.N. VT JARARY - DEEMER 1983 UNITS: Ft1/CU. M l EDilM: AIR PARTIC11 ATE STATION WITH HIGEST EAN CONTROL STATIONS INDICATORSTATIONS ettee Heftfe4444+4 Hitif fittellettlet tHete altf HtHitetH6 EAN EAN EAN RADIONUCLIDES STA. RANCE RANGE (NO. ANALYSES) REQUIRED RANGE NO. NO. DETECTEDie NO. DETECTED +e (NON-ROUTIEle LLD NO. DETECTED H ZR-95 ( 36) (-6.9 i 9.7)E -5 13 ( 3.3 i 1.5)E -4 ( 1.5 i .7)E -4

( 0) (-1.1 - .8)E -3 ( 7.1 - 76.8)E -5 (-3.4 - 5.9)E -4

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RU-103 ( 36) (-4.7 i 6.1)E -5 13 ( 1.3 t 2.01E -4 ( 4.4 1 7.0)E -5

( 0) (-5.4 - 4.8)E -4 (-4.4 - 4.81E -4 (-2.2 - 5.7)E -4 et 0/ 24)e et 0/ 4)e et 0/ 121e RU-106 ( 36) (-6.9 i 403.7)E -6 11 ( 6.7 1 11.2)E -4 (-5.0 i 5.2)E -4

( 0) (-3.4 - 4.9)E -3 (-1.9 - 3.6)E -3 (-3.4 - 2.5)E -3

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I-131 ( 36) (-1.9 t 2.0)E -4 14 ( !.0 k .4)E -3 (-l.0 t 3.1)E -4

( 0) (-2.2 - 1.9)E -3 ( 3.4 - 18.7)E -4 (-2.0 - 1.7)E -3 et 0/ 24)e et 0/ 4)* e( 0/ 12)*

CS-134 ( 36) .05 (-5.'4 i 5.1)E -5 11 ( 1.1 i 1.7)E -4 (-6.2 t 1.9)E -5

( 0) (-4.9 - 4.4)E -4 (-2.7 - 4.4)E -4 (-1.9 - .3)E -4 et 0/ 24)* e( 0/ 4)e *( 0/ 12)*

CS-137 ( 36) .06 ( 3.2 t 46.5)E -6 22 ( 2.2 i 1.4)E -4 ( l.6 i .5)E -4

( 0) (-6.0 - 3.2)E -4 (-4.7 - 51.3)E -5 (-6.4 - 51.3)E -5

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' BA-140 ( 36) ( 2.4 t 2.3)E -4 11 ( 9.5 t 10.0)E -4 ( 7.4 i 15.3)E -5

( 0) (-1.6 - 2.8)E -3 (-1.6 - 2.8)E -3 (-6.3 - 8.8)E -4 et 0/ 24)e et 0/ 4)* et 0/ 12)*

CE-141 ( 36) ( 8.4 i 6.3)E -5 12 ( l.7 t 1.3)E -4 (-5.0 t 5.1)E -5 t 0) (-4.4 - 7.5)E -4 (-1.7 - 4.5)E -4 (-3.6 - 2.5)E -4 l

  • ( 0/ 24)e et 0/ 418 et 0/121e E-144 ( 36) (-2.1 1 2.4)E -4 22 ( !.0 t .3)E -3 ( 1.9 t 2.3)E -4

( 0) (-3.1 - 1.9)E -3 ( 3.8 - 16.6)E -4 (-9.3 - 16.6)E -4 et 0/ 241e e( 0/ 4)* et 0/ 12)*

AC-228 ( 36) 0 2.3 t 1.5)E-4 14 ( 8.5 1 3.8)E -4 ( l.8 1 2.1)E -4

( 0) (-l.3 - 1.5)E -3 (-1.5 - 15.0)E -4 (-9.7 - 13.8)E -4

  • ( 0/ 24)e et 0/ 4)e et 0/ 12)*
  • NON-RCUTIE RERRS TO TE KMBER OF S&ARATE EKURD005 WICH WERE GREATER T)M TEN (10) TIES TE A'KRAE BACXOROWD FOR TE PERIOD OF TK REPORT.
    • TE FEAC110N OF SIMtE AWLYSES YlELDING DETECTA!LE EASLFDOTS (I.E. >3 STD KVIATIONS) IS INDICATED WITH *( le.

B) Charcoal Filters Charcoal filter cartridges are situated in series with the air particulate fiber filters. Monitoring stations are located at a total of nine stations, six of which are indicators and three of which are controls. Charcoal filters from the nine air sampling stations were collected and analyzed weekly for I-131 activity. No radioactive I-131 was detected on any 1983 charcoal filter sample.

Ddring the week ending April 12, 1983, a sample was not collected from Station AP/CF-13 due to the incorrect installation of a sampling line following pump maintenance (Licensee Event Report 83-13/3L).

1

E)NIFOtENT4. PADIOLCGICAL PfGM SLtt@y VERENT VfMEE NXI.EM POWER STATION, tiRN0h tff JMMY - DECEMIER 1983 ED!tM: OWC 04. FILTER UNITS: PCl/CU. M STATION WITH HIGEST EAN CONTROL STATIONS

!@!CATOR STATIONS etttH tHiMHit+t fitf Htt HillMilettHitt 96 H+4 Hit tH+t t RADIOMJCLIDES EAN EM EM STA. RMGE RANGE (NO. ANALYSES) EQUIRED RANGE NO. NO. DETECTEDie NO. DETECTEDH (N0 H OUTINE}e LLD NO. DETECTEDfi I-131 (467) .07 (-2.7 i .5)E -3 11 (-9.5 i 11.9)E -4 (-1.7 i .5)E -3

( 0) (-3.6 - 1.9)E -2 (-3.6 - 1.2)E -2 (-2.0 - 1.9)E -2 et 0/311)* *( 0/ 5216 at 0/15615 e N0HWTIE REFERS TO TE IGBER OF SEPARATE EASLEEENTS lei!CH Eff CREATER THAN TEN (10) TIES TE AVERACE BACl(OROLND FOR TE PERIOD OF TE REPORT.

u TE FRACTION CF SWtE AMLYSES Y!ELDING IETECTABLE EASUFOENTS (1.E. >3 STD DEVIATIONS) IS !@!CATED WITH 6( 15

i C) Milk l

l Milk samples were collected and analyzed monthly for low level l I-131 and gamma-emitting radionuclides. Monthly samples were l composited quarterly and analyzed for Sr-89 and Sr-90.

Detectable concentrations of Cs-137 and Sr-90 were measured in milk samples submitted from the indicator and control locations.

Concentrations were similar to those detected in 1982. In both years, the control station concentrations were higher than those at the indicator stations, indicating that the radioactivity was not due to plant operations, but to nuclear weapons testing fallout. l 1

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l EVJ1RCef[NTfL R41(LOGICAL FPC(.A SLPM'41Y VElb wi YN4EE M. CLEAR POWER STATION. VERN F. VT J48VeY - DECEMV.R 1983 EDim: MILK WITS: PCl/KG INDICATOR STATIONS STATICN WITH HlC4EST KAN CCHTROL STATIONS wenunnnoun eneneeeeenennunne e n eeseeeeeeeees RADIOMRIES EM EAN EAN (NO. ANALYSES) REQUIRED RANGE STA. RANGE RANGE (NON-ROUTIEle LLD NO. DETECTEDei NO. NO. E TECTEDet NO. ETECTEI*e SR-89 ( 16) ( 4.0 t 2.7)E -1 13 ( 6.2 t 2.4)E -1 ( 2.3 i 30.7)E -2 i

( 0) (-1.2 - 2.2)E 0 (-4.9 - 101.0)E -2 (-5.2 - 8.9)E -1 i et 0/12)* e( 0/ 4)* et 0/ 4)e SR-90 ( 16) ( 2.3 i .1)E 0 21 ( 3.8 i .3)E 0 ( 3.8 i .3)E O

( 0) ( 1.6 - 3.11E 0 ( 3.1 - 4.2)E 0 ( 3.1 - 4.2)E O el 12/ 12)s *( 4/ 4)e et 4/ 4)e K-7 ( 48) (-1.2 t .9)E 0 12 (-1.6 2 14.5)E -1 (-1.9 t 3.3)E O

( 0) (-9.5 - 9.7)E 0 (-7.8 - 6.0)E O (-2.0 - 1.3)E 1 et 0/ 36)e e( 0/ 12)* *( 0/ 12)*

K-40 ( 43) ( l.3 t .0)E 3 13 ( l.3 .0)E 3 ( l.3 * .0)E 3

( 0) ( l.2 - 1.4)E 3 ( l.3 - 1.41E 3 ( l.2 - 1.5)E 3 et 36/ 36)e *( 12/ 12)e e( 12/ 121e (R-51 ( 40 (-2.9 1 1.5)E O 21 ( l.4 i 4.2)E 0 ( l.4 t 4.2)E O

( 0) (-3.2 - 1.0)E 1 (-2.4 - 2.5)E i (-2.4 - 2.5)E 1

  • ( 0/ 36)e et 0/ 12)* e( 0/121' PW-54 ( 48) (-6.9 1 17.2)E -2 11 ( 3.1 t 15.0)E -2 (-9.6 t 28.3)E -2

( 0) (-2.7 - 2.6)E O (-8,5 - 7.4)E -1 (-1.5 - 1.1)E O

  • ( 0/ 36)* *( 0/ 121e et C/ 12)*

CD-58 ( 48) (-4.6 i 1.5)E -1 21 ( l.2 i 3.4)E -1 ( l.2 t 3.4)E -1

( 0) (-3.0 - 1.4)E 0 (-1.6 - 2.9)E 0 (-1.6 - 2.9)E O

  • ( 0/ 36)e *( 0/ 121e et 0/ 121e FE-59 ( 48) ( 7.9 i 4.2)E -1 12 ( l.2 1 .5)E o ( 4.4 t 6.9)E -1

( 0) (-4.4 - 7.4)E 0 (-1.5 - 4.0)E 0 (-4.7 - 3.9)E 0

  • ( 0/ 36)e et 0/ 121e et 0/12)*

CD-60 ( 48) (-1.6 1 195.6)E -3 12 ( 4.0 t 3.0)E -1 (-7.5t 2.8)E -1

( 0) (-2.5 - 2.4)E 0 (-9.1 - 24.1)E -1 (-2.3 - .7)E 0

  • ( 0/ 36)* el 0/ 12)* *( 0/ 121e e IOHOJTINE REFERS TO THE Rf'I(R OF ftP/ FATE TASUFiNENTS WHICH WUf CEATER THM TEN (10) TIES TE AVEPKC BACKCfGPO FOR TK F910D OF TK REPORT.

et TK FPXTION OF S#ftE WLYSES Y!ELDim KTECTABLI KA9JFEENTS (1.E. >3 STD KV!ATIONS) 15 ICICATED WITH et le.

I D(,'IRfteD7A Rf.DIOL%!CA PROGFM SMY Urte4T Yf4EE MXtEM FOG STATION. VGNON. VT

    1. JMY - KKMPG 1983 KDitti: MILK thlTS: Kl/KG INDICATOR STATIONS STATION WITH HIGHEST MEM CONTROL STATIONS eseeeeeeeeeeeeeeen eteeeeeeeeeeeee eeeeeeeeee seeeeeeeeeeeeeee RADIOKKt! DES EAN EAN EAN (NO. MLYSES) REQV! RED RANGE STA. RANGE RANGE (NON-ROUTIEle 11D NO. ETECTEDu NO. NO. DETECTEDee NO. DETECTED ++

ZN-65 ( 48) (-4.6 1 4.1)E -1 12 ( l.2 1 5.9)E -1 (-4.8 i 9.2)E -1

( 0) (-5.1 - 5.1)E 0 (-1.9 - 5.1)E 0 (-5.3 - 6.9)E O

  • ( 0/ 36)e et 0/ 12)# et 0/ 12)e ZR-95 ( 48) ( l.8 1 3.2)E -1 12 ( 3.5 t 7.6)E -1 (-8.6 i 54.9)E -2

( 0) (-5.7 - 3.7)E 0 (-5.7 - 3.7)E 0 (-3.3 - 3.3)E O e( 0/ 36)e *( 0/121e el 0/ 121e RU-103 ( 48) (-9.0 t 1.5)E -l 12 (-7.4 t 3.2)E -1 (-8,5 t 3.5)E -1

( 0) (-2.5 - 1.3)E 0 (-2.2 - 1.3)E 0 (-2.7 - .9)E O

  • ( 0/ 36)* *( 0/ 121e *( 0/ 12)e R)-106 ( 48) ( 8.6 1 19.7)E -1 11 ( 4.5 t 2.6)E 0 (-3.7 t 34.0)E -1

( 0) (-3.6 - 1.9)E I (-1.1 - 1.9)E I (-3.3 - 1.3)E 1 et 0/ 36)* *( 0/12)e *( 0/ 12)e I-131 ( 48) 1. (-1.4 i ll.1)E -3 11 ( 7.8 t 29.2)E -3 ( l.4 t 24.0)E -3

( 0) (-1.9 - 2.5)E -1 (-1.9 - 2.5)E -1 (-1.0 - 2.0)E -l

  • ( 0/ 36)* et 0/12)e a( 0/ 12)*

CS-134 ( 48) 15. (-4.4 t 1.4)E -1 12 (-2.6 t 2.3)E -1 (-6.8 t 3.1)E -1

( 01 (-3.3 - 1.4)E 0 (-1.6 - 1.4)E O (-2.0 - 1.3)E O

  • ( 0/ 36)* *( 0/12)e *( 0/ 12)*

CS-137 ( 48) 18. ( l.6 i .2)E 0 21 ( 3.7 t .8)E 0 ( 3.7 i .8)E 0

( 0) (-l.4 - 54.4)E -1 (-3.6 - 87.2)E -1 (-3.6 - 87.2)E -1 et 3/ 36)* *( 7/ 12), *( 7/ 12)e BA-140 ( 48) 60. (-3.1 1 228.3)E -3 13 ( 3.7 i 4.1)E -1 (-2.7 i 5.1)E -1

( 0) (-2.6 - 3.1)E 0 (-1.5 - 3.1)E 0 (-3.7 - 2.3)E 0

  • ( 0/ 36)e *( 0/12)* e( 0/ 12)*

E-141 ( 48) ( 4.8 1 3.1)E -1 11 ( !.2 i .4)E 0 ( 6.8 i 3.7)E -1

( 0) (-5.0 - 4.2)E O (-1.9 - 3.3)E 0 (-1.8 - 2.5)E O et 0/ 36)e *( 0/12)e el 0/ 12)e E-144 ( 48) ( 4.7 t ll.7)E -1 13 ( 2.5 t 2.4)E 0 ( 3.5 t 17.3)E -1

( 0) (-l.4 - 2.1)E I (-7.2 - 20.5)E 0 (-1.5 - .9)E 1 et 0/ 36)e et 0/121e et 0/ 121e e N0HCtJTIE EFIRS TO TE RMG OF SEFMATE EASLFfMENTS lei!CH WGE GREATER T)W TEN (10) TIES TT ABAK !#NDND FOR TE KR100 0F THE EPORT.

es TE FRACTION OF SAPftE MtYES VIELDim KTECTARE MEASFEENTS (1.E. )3 STL KVIATION$) IS INDICATED WITH et le.

D) Mixed Vegetation Mixed vegetation samples were collected during May, July, and -

October from the nine air sampling locations. The vegetation consisted of various types of grasses and were analyzed for gamma emitting nuclides. The results of the gamma spectroscopy analysis 1

on each sample showed that in addition to naturally occurring Be-7, '

1 K-40, and Ac-228, Cs-137 was detected on most samples. A l conservative dispersion and deposition model (References 1 and 2) and actual measured plant releases, indicated that the measured off-site levels could not be due to plant operations. This, along with the absence of Cs-134, strongly indicates that the measured Cs-137 was due to nuclear weapons testing fallout.

l

ENVIRONFENitt RADIOLOGICAL PRMM SLft%RV VERit)NT YAt#IE MXtEAR K5ER STAT 10N. tGNON. VT N JANUMY - [ECEMBER 1983 I' EDILM: M11ED VECETATION UNITS: PCl/KG WET INDICATOR STATIONS STATION WITH HIGEST EM (DNTROL STATIONS nuousessensen neesioneessesseeeeeeeee Hesessesteeene RADIOMXLIES EAN MEAN EM (NO. MALYSES) REQUIRED RANGE STA. RANCE RANT (NON4GlTIE)* 11D NO. DETECTEDet NO. NO. DETECTEDee NO DETECTEDee BE-7 ( 27) ( 1.1 1 .2)E 3 15 ( l.6 i 1.0)E 3 ( 7.9 i 2.0)E 2

( 0) ( 2.2 - 36.4)E 2 ( 3.2 - 36.4)E 2 ( 2.5 - 20.4)E 2

  • ( 18/ 18)* *( 3/ 3)e el 9/ 9)e l

K-40 1 27) ( 4.6 1 .2)E 3 23 ( 6.5 i .2)E 3 ( 5.8 1 .3)E 3 i

( 0) ( 3.1 - 6.4)E 3 ( 6.0 - 6.8)E 3 ( 4.4 - 6.9)E 3 l

  • ( 18/ 18)e *( 3/ 3)* *( 9/ 9)*

CR-51 ( 27) ( 6.4 t 17.0)E 0 15 ( 6.7 t 7.01E 1 (-2.9 t 3.0)E I

( 0) (-1.3 - 2.01E 2 (-3.5 - 20.2)E I (-1.9 - 1.5)E 2

  • ( 0/ 18)* et 0/ 3)e et 0/ 9)e P91-54 ( 27) (-8.9 1 20.6)E -1 22 ( 8.9 1 7.4)E 0 ( 3.0 t 3.3)E 0

( 0) (-2.5 - 1.0)E 1 (-5.8 - 17.2)E O (-1.1 - 1.7)E 1 et 0/ 18)e et 0/ 3)e *( 0/ 9)*

CD-58 ( 27) ( 4.5 t 156.1)E -2 14 ( 6.2 t 4.3)E 0 ( 2.0 t 2.3)E 0

( 0) (-1.1 - 1.4)E I (-8.4 - 141.0)E -1 (-9.4 - 13.4)E O

  • ( 0/ 18)e et 0/ 3)e et 0/ 9)*

j FE-59 ( 27) ( 3.8 t 4.8)E O 14 ( 3.2 2 1.1)E I ( l.2 i 48.8)E -1

( 0) (-3.4 - 4.4)E 1 ( l.1 - 4.4)E i (-3.0 - 2.2)E 1

  • ( 0/ 18)* et 0/ 3)e et 0/ 9)e CD-60 ( 27) ( 6.5 1 26.2)E -1 15 ( l.2 * .6)E I ( 5.0 1 2.2)E 0

( 0) (-1.8 - 1.9)E i ( 3.8 - 192.0)E -1 (-6.6 - 11.6)E O et 0/ 18)* et 0/ 3)* *( 0/ 9)*

ZN-65 ( 27) ( 5.7 i 5.8)E 0 11 ( 3.0 t 1.3)E 1 (-5.8 t 5.1)E 0

( 0) (-4.3 - 4.7)E 1 ( 4.5 - 47.4)E 0 (-1.5 - 1.0)E 1 et 0/ 1818 et 0/ 3)e et 0/ 9)e ZR-95 ( 27) (-1.5 1 4.3)E 0 15 ( l.4 i 1.2)E 1 (-4.9 i 67.2)E -1

( 0) (-3.2 - 3.8)E 1 ( 8.4 - 378.01E -1 (-4.6 - 2.0)E 1 et 0/19)* *( 0/ 3)e et 0/ 9)e

  • NC+R0lfilE REFFRS TO M N.MBER OF SEPMATE EASLREENTS WHIC11 WERE 0FEATER THAN TEN (10) TIMES M AVERACE BACKGROLND FCR M PERIOD OF M REPORT.
    • M FRACTION OF SMPLE AMLY!ES YlEl. DING DETECitAE EARREENTS (l.E. >3 STD DEVIATIONS) IS INDICATED WITH *( 16 i

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N l

Ew.'If(NMENTAL RADIOLOGICfL 190 CRAM SUNRY I

VERNMT YAta EE MAEAR POER STAfl0N. WRKIN. VT JArdjMY - KEnie 1983 l tNITS: PC1/KG WET j EDIUM: MlIED VECETATICE INDICATOR STATICNS STATICH WITH HIGHEST EAN CONTROL STATIONS ununnusune noennennunneseene entenfeeneeen RAD 10 mal [ES EAN EAN EAN i STA. RMGE RNCE l (NO. ANi(VSES) RE0JIRED RANGE '

NO. DETECTEDee NO. NO. DETECTEDee NO. [ETECTED+e (NON-ROUTIE)* Lt.D RU-103 ( 27) ( 2.0 t 3.3)E 0 23 ( l.6 t .9)E I ( 2.0 t 6.4)E O

( 0) (-2.0 - 3.6)E 1 ( 5.7 - 33.8)E O (-3.6 - 3.4)E 1

  • ( 0/ 18)* et 0/ 3)e et 0/ 9)*

RD-106 ( 27) (-3.~,i 1.8)E I 10 ( l.2 t 2.5)E 1 (-4.4 t 2.2)E l' l

( 0) (-2.9 - .6)E 2 (-2.6 - 6.0)E 1 (-1.7 - .3)E 2 st 0/ 18)e *( 0/ 3)e *( 0/ 918 I-131 ( 27) (-3.8 t 17.5)E O 15 ( 6.3 i 7.2)E 1 (-4.4 t 9.8)E O

( 0) (-1.7 - 2.1)E 2 (-1.4 - 20.7)E I (-3.6 - 6.5)E I

  • ( 0/ 18)* et 0/ 3)* *( 0/ 9)e i CS-134 ( 27) (-7.8 t 2.9)E O 13 ( l.5 t 4.1)E 0 (-4.4 1 3.9)E 0

! ( 0) (-3.6 - .8)E I (-6.1 - 8.2)E O (-2.4'- 1.3)E 1

  • ( 0/ 18)e *( 0/ 3)e *( 0/ 9)*

s CS-137 ( 27) ( 6.'9 t 1.8)E I 15 ( 2.1 t .5)E 2 ( 2.1 i .8)E I

( 2) (-7.3 - 2930.0)E -1 ( l.3 - 2.9)E 2 (-9.8 - 74.1)E O

( el 13/ 18)e et 3/ 3)e *t 4/ 9)e

- BA-140 ( 27) { l.3 t 10.1)E 0 15 ( 4.8 t 5.3)E 1 (-1,7 i 6.3)E O

( 0) (-4.1 - 15.4)E I (-1.6 - 15.4)E I (-3.4 - 3.3)E 1 1 et 0/ 18)e et 0/ 3)e et 0/ 9)e N '

l ( 8.1 t 5.6)E O E-141 ( 27) ( l.5 i .6)E 1 13 ( 3.5 i 1.7)E 1

( 0) (-4.3 - 7.0)E I ( l.6 - 7.0)E 1 (-2.4 - 3.1)E t et 0/ 18)e *( 0/ 3)e *( 0/ 9)e E-144 ( 27) ( l.8 t 1.3)E 1 12 ( 6.3 i 3.5)E I (-7.9 t !!.4)E 0

( 0) (-1.1 - 1.3)E 2 ( 8.2 - 128.0)E O (-6.8 - 3.6)E 1 et 0/ 18)* et 0/ 3)* et 0/ 9)e AC-228 ( 27) ( 6.9 t 1.9)E I 10 ( !.9 i .9)E 2 ( 7.1 i 2.5)E 1

( 0) ( 1. '4 - 37.2)E 1 ( 8.8 - 37.2)E I (-3.8 - 18.4)E 1 et 4/ 18)e *( 3/ 3)e et 4/ 9)e e NON-f0JTIE RETBS TO TE lmBER OF SEPAPATE EASLF9ENTS WHICH ERE (REATER TWel TG (10) TIES TK AWFAT Bin 0R0lND FOR TK PERIOD OF TE REPORT.

    • TE FFACTION OF SMtE ANALYSES Y!ELDING [ETECTARE EASLEElENTS (i.E. >3 STD DEVIAi!ONS) IS INDICATED WITH et le.

I

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g) Food Crop Samples of cabbage were collected in October at Stations TF-11 and

'N s ,

TF-21 and were analyzed for gamma emitting radionuclides and low-level I-131. Other than naturally occurring X-40, no Q. .s.

s radionuclides were detected in the samples.

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EWIKwENTAL PAD 10LC01 CAL F90GM1 StM%P7 UMONT TANrIE renEAR FOER STAT 10N. 20i. VT JMUARY - [ECEMIER 1983 ED!tM: FOOD CROP (MITS: PCl/KG WLT INDICATCR STATICM STATION WITH HIGHEST EAN CONTROL STATIONS seeeeeeeeeeeeeeees esseeeeeeeeeeeeeeeeeeeeev sitionessessesee RADIOMRIDES EM EAN EAN (NO. ANALYSES) REQUIRED RMCE STA. RMCE RME

ajN-ROUTIE)* LLD NO. ETECTEDet NO. NO. DETECTEDie NO. IETECTENe K-7 ( 2) (-8.4 1 4.2)E 1 21 ( 3.4 i *6.5)E o 0 ( 3.4 i %.5)E O

( 0) et 0/ lie et 0/ lie *( 0/ Ile K-40 ( 2) ( 9.1 t 1.2)E 2 21 ( !.9 t .1)E 3 ( l.9 t .1)E 3

( 0) ef 1/ )* *( 1/ 1)* *( 1/ lie CR-51 ( 2) (-3.8 t 5.1)E 1 21 (-3.8 t 4.8)E 1 (-3.8 t 4.8)E 1

( 0) et 0/ lie et 0/ 1)* *( 0/ 1)e 1W-54 ( 2) ( l.3 t 5.0)E 0 11 ( l.3 t 5.0)E 0 (-1.5 t 4.3)E 0

( 0) et 0

,/ IH *( 0/ 1)* *( 0/ lie (0-58 ( 2) (-5.9 i 6.1)E 0 21 (-2.6 t 47.4)E -1 (-2.6 s 47.4)E -1 i ( 0)

  • ( 0/ lie et of 1H e( 0/ 1)e FF59 ( 2) (-7.9 t 12.5)E 0 21 (-7.6 t 12.0)E O (-7.6 1 12.0)E O

( 0) et 9/ 1)e *( 0/ 1H *( 0/ 1)*

CD-60 ( 2) (-3.9 t 8.6)E 0 21 ( 4.2 2 6.5)E 0 ( 4.2 i 6.5)E 0

( 0) e( 0/ lie *( 0/ 1)e et 0/ lle IN-65 ( 2) ( l.4 t 1.0)E I 11 ( l.4 1 1.0)E 1 (-8.8 t 93.61E -1 i ( 0) l et 0/ 11e et 0/ 1H et 0/ 1H ZR-95 1 2) ( l.1 t .9)E I 11 ( 1.1 i .9)E i ( 9.2 t 7.8)E 0

( 0)

  • ( 0/ 11e et 0/ Ile et 0/ 1H l

I e NONWETIE REFERS TO TT NLMER OF KPARATE EARF91ENTS WHICH GE CREATER T)MN TDi (10) TIES TT AVETvYE BACXCROLND FOR TE PERIOD OF TT REPCRT.

et T)E FRACTION OF SMftE AMLYES YlELDING KTECTABLE KASLREENTS l (1.E. >3 STD DEVIATIONS) IS INDICATED WITH et le.

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'e ENVIRChTNTAL P/4!ctC01 CAL FROGFM SUMM,4Y VUKNT VfAEE KCLEFA P0lFR STATICW. VERN'A. VT JWUARY - DECEMBER 1983 EDitM: FOOD CR0P LNITS: K!/KG WET INDICATOR STATIONS STATION WITH HIGHEST EM C04TML STAil0NS ueusesseeHessee eenenseHeeeeHeeHeHet sensessesseessee RADIONJCLIDES EAN EAN MEAN (NO. ANALYSES) REQUIRED RANGE STA. RANGE RANCE HHHGITIEle llD NO. DETECT G u NO. NO. DETECTEDH NO. DETECTED u R0-103 ( 2) ( 5.2 1 54.7)E -1 11 ( 5.2 i 54.7)E -1 (-3.6 i 5.2)E 0

( 0) et 0/ 1)* *( 0/ 11e el 0/ 1)*

RU-106 ( 2) (-4.5 1 4.4)E 1 21 ( 4.0 t 3.3)E I ( 4.0 t 3.3)E 1

( 0)

  • ( 0/ 1)* *( 0/ 13e et 0/ lie I-131 ( 2) 60. ( 8.1 1 II.7)E -l  !! ( 8.1 t 11.7)E -1 ( 5.9 t 12.5)E -1

( 0)

  • ( 0/ 11e *( 0/ lie et 0/ 1)e CS-134 ( 21 60. (-1.1 i .5)E 1 21 (-5.1 i 4.2)E 0 (-5.1 t 4.2)E 0

( 0) et 0/ 1)e et 0/ He *( 0/ lie CS-137 ( 2) 80. (-1.2 t 49.6)E -1 21 ( 2.8 t 4.7)E 0 ( 2.0 t 4.7)E 0

( 0) e( 0/ 11e et 0/ 11e et 0/ lie BA-140 ( 2) ( 6.9 t 9.7)E 0 21 ( l.3 t 1.0)E 1 ( !.3 t 1.0)E i

( 0) et 0/ 1)* *( 0/ 1)* et 0/ lie E-141 ( 2) (-1.2 i .8)E 1 21 ( !.4 i .8)E 1 ( l.4 .8)E I l

( 0) et 0/ 1)e *( 0/ lie et 0/ 1)*

E-144 ( 2) (-3.2 t 2.5)E 1 11 (-3.2 t 2.5)E I (-5.8 t 2.5)E 1 l ( 0) e( 0/ 11e el 0/ 1)* et 0/ 11e AC-229 ( 2) ( 2.5 t 22.01E 0 11 ( 2.5 t 22.0)E 0 (-5.4 t 19.8)E 0

( 0) el 0/ 1)e el 0/ 1)* *( 0/ 11e e #0HOJTIE REFERS TO TE KMER OF SEPARATE EASLEENTS WH104 WERE CEATER l

THM TEN (10) TIES TE AtUXE BACXOR3tfC FOR TE PERIOD OF TE REPORT.

l

  • e TE FRACTION OF SAtft1 AMLYES YIELDING DETECTAILE EARTOOlis (1.E. >3 STD DEVIATICNS) IS INDICATED WITH e( le.

l

F) Meat. Poultry. Etas The only seat, poultry, or egg sample available during 1983 was an egg sample from Station TZ-11. It was analyzed for ga:=a-emitting radionuclides. Only naturally-occurring K-40 was detected.

[

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f e

4 l

Of/!ROPKNTAL RADICLCCICAL F9CCM Sthr%RY W RMONT Y mrIE Nt n EAR PCWER STATION. VEPN ). VT JAMW.Y - [ECCtIER 1983 EDIUM: EAT POLLTRY. ECOS thlTS: PC1/r0 WET INDICATCR STATIONS STATION WITH HIGEST EM CONTROL STATIONS

++++e n n u n e n n u n u n n u n en n u u se nennennnu RADIC#XtlIES EAN EAN EM

( O. W LYSES) REQUIRED RANGE STA. RMCE RMCC (NM-ROUTIEle LLD NO. DETECTEDee NO. NO. DETECTEDee NO. IETECTED+e BE-7 ( !) ( l.6 i 1.0)E 2 99 ( 1.6 t 1.0)E 2 NO DATA

( 0) et 0/ 11e et 0/ 1)*

K-40 ( 1) ( l.5 t .2)E 3 99 ( !.5 t .2)E 3 NO DATA

( 0)

  • ( 1/ 1)e *( 1/ 1)*

CR-51 ( !) (-2.2 i 1.0)E 2 99 (-2.2 t 1.0)E 2 NO DATA

( 0) et 0/ lie *( 0/ 1)*

fW-54 ( I) ( l.0 t 9.8)E O 99 ( l.0 t 9.8)E O NO DATA

( 0) et 0/ lie *( 0/ 1)e CD-58 ( 1) (-1.2 1 10.9)E O 99 (-1.2 t 10.9)E 0 NO DATA

( 0)

  • ( 0/ lie et 0/ lie FE-59 ( !) (-3.8 1 2.7)E 1 99 (-3.8 2 2.7)E 1 NO DATA

( 0)

  • ( 0/ lie et 0/ 1)s C0-60 ( 1) (-2.3 t 1.5)E 1 99 (-2.3 i 1.5)E 1 N0 (ATA

( 0) et 0/ 1)* *( 0/ 1)*

2N-65 ( 1) ( l.0 t 2.2)E 1 99 ( l.0 2 2.2)E 1 NO DATA

( 0) et 0/ lie *( 0/ lie ZR-95 ( !) (-2.0 1 1.9)E 1 99 (-2.0 t 1.9)E 1 NO DATA

( 0) e( 0/ 1)e *( 0/ 1)e e NEW-R0llTINE REFERS TO TE N.tGER OF SEFACATE EASLFfENTS INICH ERE GREATER T)Wi TEN (10) TIES TE AVERAGE EACXGRCLND FOR TE PERIOD OF THE REPORT.

    • TE FRACTION OF S#FLE ANftYSES YlELDING DETECTAILE EASLREENTS (1.E. >3 STD DEV!ATIONS) IS INDICATED WITH *( 19

l EWAR0tKNTAL PADl3.0GICit PRCfAM Sithe7 VERNNT Yf#IE NUCLEAR FtWER STATION, LUMN. VT l

JA'IJAY - KCEtGER 1983 EDIUM: EAT, POLLTRY. EGGS thlTS: PCl/KG WET INDICATOR STATIONS STATICN WITH HlGEST EM CONTROL STATIONS unememmm emmumemetemus m e u m nee m RAD 10ftlQ.lDES EAN KAN EAN

~~

(ND. ANALYSES) RE9J1 RED RANT STA. RANGE RANGE (N0lHKUTIEle LLD NO. DETECTED ** NO. NO. KTECTEDu NO. DETECTED **

RU-103 ( 1) (-2.4 t 1.3)E 1 97 (-2.4 t 1.31E 1 NO DATA

( 0)

  • ( 0/ 11e *( 0/ lie RU-106 ( l) (-6.1 1 9.3)E 1 99 (-6.1 2 9.3)E 1 NO DATA

( 0) el 0/ 1)* *( 0/ 11e 1-131 ( !) 60. (-6.3 1 4.3)E 1 99 (-6.3 t 4.31E I NO EATA

( 0) et 0/ lie *( 0/ lie CS-134 ( 11 60. (-2.3 t 10,5)E 0 99 (-2.3 i 10,5)E O NO IATA j ( 0)

  • ( 0/ lle et 0/ 11e CS-137 ( 11 80. ( l.7 t 9.4)E O 99 ( 1.7 i 9.4)E O NO DATA

( 0)

  • ( 0/ 1)* *( 0/ lie BA-140 ( 1) (-3.8 t 29.0)E 0 99 (-3.8 t 29.0)E 0 HD DATA -

( 0) f; et 0/ 1)* *( 0/ 1)*

E-141 ( 1) ( l.8 i 1.7)E 1 99 ( 1.8 t 1.7)E 1 NO DATA

( 0) i et 0/ 11e *( 0/ lie E-144 ( !) ( 3.2 1 50.5)E O 99 ( 3.2 t 50.5)E O NO DATA

! 0) ci 0/ lie *( 0/ 1)*

AC-228 ( !) ( 6.9 i 5.0)E 1 99 ( 6.9 2 5.01E 1 NO DATA

( 0) et 0/ 1), *( 0/ 1)*

i e NON-ROUTINE REFERS TO TE NUMBER OF SEPMATE EASUREENTS leilCH WEPE CPIATER i THAN TEN (10) TliS TE AVEPACE BACXCROLHD FOR TE PERIOD OF TE REPORT.

    • TE FRACTION OF StdtE ANALYSES Y!ELDING IETECTABLE EARRDENTS (1.E. >3 STD IEVIATIONS) IS INDICATED WITH *( le.

i l

I 6

c) Silate Silage samples were collected at the four milk sampling stations during 1983. Each sampic was analyzed for gamma-emitting radionuclides. Other than naturally-occurring K-40 and Be-7, nonc j were found. l l

[

e m

ENVlffMENTAL RAD 10LhG!CJL PRC(MM Rtra tiRn0NT W. TEE N'X1 EAR KWER STA710N. tERO. V7 JAWARY - [EEMBER 1993 MEDIUM: 51LA0E LN!TS: Kl/r0 WET INDICATOR STATICNS STATION WITH HIGEST EAN CONTK(. STATIONS esseeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeee RADIOMXLl[ES EAN MEAN EAN (NO. ANALYM S) REQUIRED RA6E STA. RANCE RAM'E (NCN-RCUTINE)* LLD NO. IETECTEDet NO. NO. DETECTED *e NO. IETECTEDee K-7 I 4) ( 3.2 t .8)E 2 12 ( 4.8 t 1.2)E 2 ( 4.7 t 1.0)E 2

( 01 ( 2.2 - 4.8)E 2

  • ( 1/ 3)* *( 1/ 1)* *( 1/ 1),

K-40 ( 41 ( 3.1 2 .6)E 3 11 ( 4.2 1 .3)E 3 ( 2.6 2 .3)E 3

( 0) ( 2.2 - 4.2)E 3

  • ( 3/ 3)* *( 1/ 1)* *( 1/ lie CE-51 ( 4) ( 3.3 t 2.9)E 1 11 ( 8.8 2 14.2)E 1 ( 1.0 1 12.1)E 1

( 0) (-7.7 - 88.5)E O

  • ( 0/ 31' *( 0/ 1)* *( 0/ 11e NN-54 ( 4) ( 7.8 t 3.8)E O 11 ( 1.5 t 1.2)E 1 (-1.2 t 1.0)E 1

( 0) ( !.8 - 14.7)E O

  • ( 0/ 3)* *( 0/ 1)* *( 0/ 1)*

CO-58 ( 4) ( 7.0 2 15.5)E O 13 ( 2.3 1.1)E 1 (-5.2 2 11.4)E O

( 0) (-2.4 - 2.3)E 1 et 0/ 3)* *( 0/ 11e et 0/ 11e FE-59 ( 4) (-1.8 t 1.3)E 1 13 ( 5.4 2 24.1)E O (-8.5 t 3.1)E 1

( 0) (-3.7 - .5)E 1

  • ( 0/ 3)e et 0/ lie *( 0/ lie CD-60 ( 4) (-1.7 i .7)E 1 12 (-5.6 t 19.7)E O (-10. t 14.5)E 0

( 0) (-2.0 - .6)E 1

  • i 0/ 3)e *( 0/ lie *( 0/ 1)*

ZN-65 ( 4) (-1.5 t .8)E 1 21 ( 3.4 t 2.3)E 1 ( 3.4 t 2.3)E 1

( 0) (-3.1 - .3)E 1 et 0/ 3)* *( 0/ lie *( 0/ 11e ZR-95 ( 4) (-2.6 1 1.5)E 1 13 (-3.0 t 19.1)E O (-1.1 1 2.3)E I

( 0) (-5.5 - .3)E 1 et 0/ 3)* *( 0/ lie *( 0/ lie e M-RCCTINE REFERS TO TT UKR OF EFARATE EARREMENTS WHICH WEFE GREATER THAN TEN (10) TIMES TK AVERAGE BACKCKe.ND FOR TE FERIOD OF TK REPORT.

en THE FRACTION OF $4PsE AMLYSES Y!ELDIO DETECTABLE MEASLEEMENTS (I.E. >3 STD DEVIATICNS) IS INDICATED WITH *( le.

ENVIROVENTAL RADICLOGICAL PRCGM Str.WV VERn?NT YAME N.(TEAS M)WER STATICN, MN VT l JA4.lARY - IECEMEF 1983 )

Emir.: S! LASE thlTS: Kl/r0 WET INDICATOR STATICNS STATION WITH HIGEST EM CCNTROL STATIONS eseeeeeeeeeeetenes eseeeeeeeeeeeeeeeeeeeees, esseeeeeeeeeeeen RADIONLCLIDES EAN EAN EM STA. RMCC RANGE (NO. ANALYSES) REDVIPID RANGE NO. DETECTED u NO. NO. IETECTElise NO. IETECTEDee (NON-ROUTIE)* LLD RU-103( 4) ( 2.0 t 1.2)E 1 11 ( 4.3 t 1.6)E I ( 6.9 2 12.1)E O

( 0) ( 7.7 - 42.6)E O s( 0/ 3)* et 0/ 1)* et 0/ lie RU-106 ( 4) ( 6.4 1 1.7)E 1 13 ( 9.3 2 7.0)E 1 ( 2.9 2 6.0)E 1

( 0) ( 3.5 - 9.3)E 1

  • ( 0/ 3)e et 0/ 1)* et 0/ 1)*

I-131 ( 4) ( 1.4 t 4.4)E 1 13 ( 9.4 t 7.7)E 1 (-10. i 8.8)E 1

( 0) (-6.0 - 9.4)E 1 et 0/ 3)* e( 0/ 1)e et 0/ lie

(-1.1 t .6)E 1 11 (-1.5 t 11.4)E O (-2.6 1 6.9)E O C$-134 ( 4)

( 0) (-2.2 - .1)E 1 L e( 0/ 3)* *( 0/ 1)e et 0/ lie 13 ( 8.5 9.5)E 0 ( 6.! t 10,5)E O CS-137 ( 4) (-4.7 1 7.5)E 0

[- (-1.8 - .8)E 1 L ( 0)

  • ( 0/ 3)e *( 0/ lie et 0/ 11e

(-5.8 t 25.4)E 0 21 ( 4.9 t 3.8)E 1 ( 4.9 i 3.8)E 1 IA-140 ( 4)

( 0) (-4.1 - 4.3)E 1

) *( 0/ 3)e *( 0/ lie *( 0/ 1)*

CE-141 ( 4) ( 3.5 t 14.2)E O 11 ( 2.6 i 2.2)E 1 (-1.3 t 1.9)E 1

( 0) (-2 2 - 2.6)E 1 et 0/ 3)e *( 0/ 1)s *( 0/ lie CE-144 ( 4) ( 3.1 i 5.01E 1 12 ( 1.0 t .5)E 2 ( 5.6 1 4.6)E I

( 0) (-6.5 - 10.1)E 1 et 0/ 3)e e( 0/ 1)s et 0/ lie AC-228 ( 4) ( 3.8 t 1.5)E 1 11 ( 6.2 i 5.0)E 1 ( 2.0 i 4.7)E 1

( 0) { l.2 - 6.2)E 1 et 0/ 31s et 0/ 1)e et 0/ 1)*

e NON-RCUTINE REFERS TO TE HGER Cf SUARATE EAtlREMENTS WHICH WERE GREATER THM TEN (10) TIES TE AVERAE B00RCLND FOR TE FERIOD OF TE REPORT.

se TE FRACTION OF SMPLE ANALYSES Y!ELDING DETECTAltE EASUMENTS I (1.E. >3 STD IEV1ATIONS) IS 1NDICATED WITH *( le.

I f

H) Ground Water Ground water grab samples were collected from three indicator and one control station on a quarterly basis. These samples were analyzed for H-3, gross-beta, and gamma-emitting radionuclides.

Gross-beta radioactivity was detected in indicator and control stations during 1983 and the concentrations are typical of those made over the past few years.

Manganese-54 was detected in the February 15, 1983 sample from Station WG-11 (4.9 1 1.2 pCi/kg). It is likely that this radioactivity was caused by cross-contamination from some other in-plant source because: 1) the three subsequent samples from that location had no Mn-54; and 2) the sample was taken from a tap inside the plant and was consequently handled inside the plant. In any case, the calculated critical organ dose to an adult who consumed 370 liters / year of water at the above IcVel of Mn-54 would be approximately 0.025 mrem, based on USNRC Regulatory Guide 1.109 methodology (Reference 1).

No other radionuclides were detected in the 1983 ground water samples.

ENY!RMN%. P@l(Wal(AL FRCSAM RmAM VERTesi Y## EE NTLEf/ F%ER ST& TION, VEb% V7 Jt##Y - IECIMBER 19EG KDIUM: GkXND WATER UNIT 5: PCl/t0 INDICATOR STATIONS STATICH WITH HIGHEST G N CINTROL STATIONS esseeeeeeeeeeeeee. essesseeeeeeeeeeeeeeeeee, seeeeeeeeeeeeeen RADICNXtlIES MEAN KAN SN (W. ANALYSES) REQUIRED RANGE STA. Rf#;E RWE (NON-KiUTINE)* LLD H0. [ETECTE0H NO. NO. IETECTEDee NO. IETECTEDu GR-B ( 16) 4. ( 5.9 1 2.0)E O 13 ( l.3 2 .4)E I ( !.21 4)E O

( 3) ( 6.0 - 194.0)E -1 ( 2.0 - 19.4)E O ( 4.0 - 190.0)E -2

  • ( 9/ 121e at 4/ 4)* *( 2/ 4)*

EE-7 ( 16) (-2.2 i 1.6)E O 21 ( 2.9 2 2.4)E 0 ( 2.9 t 2.4)E O

( 0) (-1.1 - .8)E I (-1.3 - 9.7)E O (-1.3 - 9.7)E O

  • ( 0/ 121e *( 0/ 4)e et 0/ 4)*

K-40 ( 16) (-1.6 t 2.4)E O 21 ( 3.0 t 4.9)E 0 ( 3.0 t 4.9)E O

( 0) (-1.9 - 1.3)E I (-9.2 - 14.6)E O (-9.2 - 14.6)E 0

  • ( 0/ 121e *( 0/ 4)* *( 0/ 4).

CR-51 ( 16) ( l.5 t 24.6)E -1 12 ( l.7 i 4.8)E 0 (-1.5 t 2.9)E 0 1 0) (-1.3 - 1.4)E I (-9.2 - 13.9)E O (-6.3 - 6.7)E O

  • ( 0/ 12)* et 0/ 4)e et 0/ 4)e L.

19i- 54 ( 16) 15. ( 5.6 i 4.6)E -1 11 ( !.6 t 1.2)E 0 (-2.0 1 2.7)E -1

( !) (-9.6 - 49.0)E -1 (-7.6 - 49.0)E -1 (-9.2 - 3.9)E -l

  • ( 1/ 12)* *( 1/ 4)e et 0/ 4)e CD-58 ( 16) 15. (-2.0 t 27.31E -2 21 ( 2.2 t 5.9)E -1 ( 2.2 t 5.9)E -1

( 0) (-1.6 - 1.4)E O (-1.4 - 1.2)F ^ (-1.4 - 1.2)E O

  • ( 0/ 12)* et 0/ 4)e *( 0/ Ale

}

FE-59 ( 16) 30. ( 6.6 t 5.2)E -1 12 ( 9.9 2 5.4)E -1 (-8.0 t 10.7)E -1

( 0) (-2.1 - 4.7)E O (-6.0 - 18.01E -1 (-3.0 - 1.9)E O

  • ( 0/ 12)e e( 0/ 4)* *( 0/ 4)e CO-60 ( 16) 15. (-4.6 t 2.0)E -1 21 (-2.7 t 1.7)E -1 (-2.7 t 1.7)E -1

( 0) (-1.3 - .9)E O (-7.4 - .01E -1 (-7.4 - .01E -1 at 0/ 12)e *( 0/ 4)* *( 0/ 4)*

ZW-65 ( 16) 30. ( !.5 t .6)E O 11 ( !.9 t 1.0)E O ( l.8 i 1.2)E O

( 0) (-2.1 - 5.3)E 0 (-4.9 - 39.4)E -1 (-8.3 - 48.1)E -1 et 0/ 12)e el 0/ 4)e *( 0/ 4)*

e NON-Ms) TINE KFERS TO TK NUMIER OF SEPARATE EARFiTNTS W4ICH ERE CREATER THAN TEN (10) TIES TT MRAGE Ed.CXCROLND FCE Tif KRIOD OF THE REPORT.

n TK FRACTION OF SAMPLE ANALYSES VIELDIE IETECTABLE EARREENTS (1.E. >3 STD IEVIATIONS) 15 INDICATED WITH et le.

e e-EWIM**ENT&_ FAD 10WlCAL PR006AM St.HWt VEWS' it#EE MXtEAR PCuER STATICa. UERXm UT JAff)A;5 - I(CEr$ER 1993

' MDity: GEOS.D WATER UNITS: King

. INDK410R STATIONS STAT 10f WITH HIGHEST MAN CINTROL STATK65 el9999999999999996 letttttttttttttttttlettle 49ft994496969999 RADIC#.Gl[ES MEAN TAN iM (NO. ANALYSES) REQUIRED RAEE STA. RMGE PANGE (NON-RCUTIEli LLD NO. ICTECTEEm NO. NO. DETECTEDet NO. DETECTEDet ZR-95 ( 16) 30. ( !.0 t .4)E O 12 ( l.7 2 .3)E O ( B.7 i 8.9)E -1

( 0) (-1.2 - 2.8)E O ( l.0 - 2.5)E O (-6.1 - 30.8)E -l

  • ( 0/ 1214 e( 0/ 4)e et 0/ 419 RU-103 ( 16) (-6.4 t 1.5)E -1 13 (-2.8 t 1.7)E -1 (-6.8 2 4.7)E -1

( 0) (-1.6 - .2)E O (-5.8 - 2.2)E -1 (-1.' - .4)E 0 e( 0/ 12)* et 0/ 415 e( 0/ 4)t RU-106 ( 16) (-2.5 t 18.5)E -1 13 ( 2.5 2 1.4)E 0 (-1.4 t 1.6)E O

( 0) (-1.1 - .6)E I (-1.1 - 5.3)E O (-3.8 - 3.2)E O

  • ( 0/ 12)* *( 0/ 4)e *( 0/ 4)t 1-131 ( 6) 1. ( 2.7 1 6.3)E -1 12 ( 9.4 2 9.6)E -1 ( 5.8 t 13.0)E -l j ( 0) (-3.7 - 3.9)E O (-1.2 - 2.6)E O (-2.2 - 3.9)E O e( 0/ 12)e et 0/ 4)* *( 0/ 415 e

CS-134 ( 16) 15. ( 7.0 264.7)E -3 12 ( 2.1 1 2.5)E -1 (-1.0 t 21.9)E -2 o ( 0) (-1.6 - 1.7)E O (-4.6 - 6.9)E -1 (-4.0 - 5.7)E -1

  • ( 0/ 12)* *( 0/ 4)e *( 0/ 4)*

f

[ CS-137 ( 16) 18. (-2.1 t 2.9)E -1 21 ( 3.5 2.9:E -1 ( 3.5 t 2.9)E -1

( 0) (-1.9 - 1.3)E O (-2.6 - 8.9)E -1 (-2.6 - 8.9)E -l

  • ( 0/ 12)* *( 0/ 419 e( 0/ 4)*

BA-140 ( 16) 60. (-3.2 1 2.8)E -1 12 (-3.7 t 20.1)E -2 (-1.8 t 1.1)E 0

( 0) (-2.2 - .9)E 0 (-6.4 - 2.1)E -1 (-3.9 - 1.4)E O

  • ( 0/ 12)e *( 0/ 4)e *( 0/ All CE-141 ( 16) ( l.4 * .4)E 0 12 ( !.9 t .6)E 0 ( l.3 t .9)E 0

( 0) (-7.1 - 31.5)E -1 ( 2.9 - 31.5)E -1 (-1.2 - 3.1)E O

  • ( 0/ 12)* *( 0/ 4)* et 0/ 4)*

E-144 416) (-1.6 2 1.6)E 0 13 ( 8.5 t 33.5)E -1 (-2.4 t 2.2)E 0

( 0) (-1.1 - .8)E 1 (-6.5 - 8.4)E O (-7.2 - 3.1)E 0 et 0/ 121e et 0/ 4)e *( 0/ 4)e H-3 ( 16) 2000. ( lit t .3)E 2 11 ( l.6 1 .3)E 2 ( 4.1 t 6.9)E 1

( 0) (-2.4 - 26.3)E 1 ( l.3 - 2.6)E 2 (-1.4 - 1.9)E 2

  • ( 0/ 1219 et 0/ 419 et 0/ 4)*

e NCH-ROUTIE FEFERS TO TK NJGER OF SEFARATE EA$lFEMNTS WHICH WERE OTEATER THAN TEN (10) TITS TK AVERACE BACK0FMC FOR TK PERIOD OF THE REPORT.

to T'E FRACTION OF SAnftE Ar.ALYSES YlELDING [ETECTABLE KASLFEENTS (1.E. >3 STD DEV!ATICNS) 15 INDICATED WlTH +( le,

, s

{

I) River Water River water is analyzed monthly for gross-beta and gamma-emitting l radionuclides. The monthly samples are composited and analyzed for H-3 on a quarterly basis. A composite sampler is used at Station WR-11 and grab sampics are taken at the other two stations.

Gross-beta radioactivity was detected in all but one sample during 1983. The mean value, as well as the range of values, for the indicator stations was similar to that of the control station, indicating that those radionuclides detected are not due to plant operations, i

l Tritium (H-3) was detected in one sample from Station WR-21 (2981 92 pCi/kg). Since this sample is from a control location and, since the measurement was marginally positive, it is likely that the measurement is either a false positive or due to nuclear weapons testing fallout.

No other radionuclides were detected in the 1983 river water samples.

L I

e 4

s

ENVIKmENTAL RO!Ct%1 CAL PM0 RAM SitMY tTRMONT YAME NXLEA:: N WEF SVAVION. tiRN W. VT

(

4*t # Y - [ECEMPER 1983 MEDIUM: RIVEF WATER LNITS: PCl/LG l

INDICATOR STATIONS STATION WITH HICHEST MEAN CONTRCt. STATIONS

.................. e........................ ...e.......e....

RADIONUCLIICS MEM KAN KAN 0 0. ANALYSES) REQUIPID RANGE STA. RANGE RANCE (WJN-ROUTINE). LLD NO. ICTECTED., NO. NO. DETECTED.e NO. IETECTED..

CR-B ( 36) 4. ( l.9 1 .1)E O 21 ( 2.0 t .1)E 0 ( 2.0 t .1)E O

( 0) ( 9.4 - 30.9)E -1 ( l.3 - 2.9)E O ( 1.3 - 2.9)E O

  • ( 23/ 24). *( 12/ 12)e et 12/ 12)*

f(-7 ( 36) ( 2.9 1 14.6)E -1 12 ( l.8 t 2.2)E O (-9.8 t 14.9)E -1

( 0) (-1.2 - 1.5)E 1 (-9.4 - 15.1)E O (-9.2 - 5.9)E O et 0/ 24)* *( 0/ 12)e *( 0/ 12).

K-40 ( 36) (-5.5 1 2.3)E O 11 (-3.8 t 3.1)E O (-4.7 i 5.2)E O

( 0) (-3.6 - 1.5)E I (-2.0 - 1.5)E i (-3.3 - 1.7)E 1

( *( 0/ 24)e e( 0/ 12)* *( 0/ 12)*

CR-51 ( 36) (-2.8 t 15.7)E ' 12 ( 2.5 1 2.3)E 0 (-1.1 1 2.5)E O

( 0) (-1.4 - 1.6'E 1 (-9.0 - 15.5)E 0 (-2.3 - 1.2)E 1 et 0/ 24). *( 0/ 12). *( 0/ 121*

IW-54 ( 36) 15. ( 2.2 2 14.9)E -2 12 ( 4.2 t 12.6)E -2 (-9.3 t 18.4)E -2

, ( 0) (-1.4 - 1.6)E O (-8,5 - 10.1)E -1 (-1.0 - .7)E O et 0/ 24), et 0/ 12)* *( 0/ 12)*

(

CD-58 ( 36) 15. (-5.2 16.8)E -2 21 (-1.4 2 30.7)E -2 (-1.4 i 30.7)E -2

( ( 0) (-1.8 - 1.5)E O (-2.0 - 1.2)E 0 (-2.8 - 1.2)E O

  • ( 0/ 24)* *( 0/ 12)e e( 0/ 12)*

FE-59 ( 36) 30. ( 2.0 t 3.2)E -1 11 ( 2.1 t 5.2)E -1 (-6.8 t 78.9)E -2

( 0) (-3.0 - 3.2)E O (-3.0 - 3.1)E O (-4.6 - 4.9)E O et 0/ 24)e *( 0/ 121e et 0/ 12)*

CD-60 ( 36) 15. (-4.7 1 1.7)E -1 12 (-3.4 i 1.6)E -1 (-6.3 3.4)E -1

( 0) (-3.1 - 1.0)E 0 (-1.4 - .3)E O (-3.4 - .9)E O

  • ( 0/ 24)* *( 0/12)e et 0/ 12)*

I ZN-65 ( 36) 30. (-3.7 t 3.9)E -1 12 (-3.6 t 6.1)E -1 (-1.1 t .5)E O g ( 0) (-3.4 - 4.1)E O (-3.4 - 3.6)E 0 (-3.9 - 1.6)E O j et 0/ 24)e *( 0/ 121e et 0/ 12),

s e NON-ROUTINE REFERS TO TE UBER OF SEPAPATE MEASLREMEN15 kHICH LERE GREATER THAN TEN (10) TIMES TE AVEPACE BACKGRCtJND FCR THE PERIOD 0F THE REKRT.

~

    • THE FRACTICri Cf ! AMPLE AMLYSES YIELDING [ETECTAELE EASUREMENTS (I.E. >3 STD [EVI ATIONS) 15 INDICATED WITH *( )..

i

ErfilR9'e#fAL RADIOLOGICAL PfwM RMWY VEFXNT Yk#EE NLREAR K44ER STATION. VER*Oi, VT JAN'#6f - IECErGER 1983 EDILH: RIVER WATER UNITS: K l/t0 INDICATCR STATIONS STATICH WITH HIGEST MEAN CtWTROL STATICt.'s seeeeeeeeeeeeeeees a+eeie,eeeeeeeeeeeeeeeeee seeeeeeeeeeeeee.

RADIONUCLIIES EAN EAN MEAN (N0. ANALY!ES) REDVIRED RANGE STA. RANCE RANGE

, (NCN-ROUT!NEle LLD NO. IETECTEDee EI. NO. IETECTEDee NO. IETECTErde ZR-95 ( 36) 30. ( 2.8 t 22.7)E -2 11 ( 3.9 1 28.2)E-2 (-4.8 2 6.5)E -1

( 0) (-2.0 - 2.7)E O (-1.3 - 2.7)E 0 (-4.1 - 2.7)E O

  • ( 0/ 24)* *( 0/ 12)e et 0/ 12)*

RU-103 ( 36) (-1.1 i .2)E 0 21 (-1.1 t .2)E O (-1.1 2 .2)E O

( 0) (-3.1 - .51E 0 (-1.8 - .4)E O (-1.P - 4)E O at 0/ 24)e et 0/ 12)* *( 0/ 12)e RU-106 ( 36) (-1.3 t 1.5)E O 21 ( 3.6 1 2.2)E 0 ( 3.6 t 2.2)E O

( 0) (-1.3 - 2.0)E 1 (-1.0 - 1.3)E 1 (-1.0 - 1.3)E 1 et 0/ 24), et 0/ 12)e e( 0/ 12)*

I-131 ( 36) (-3.4 t 4.8)E -1 11 ( 3.3 t 7.4)E -1 (-7.8 t 82.4)E -2 i ( 0) (-5.1 - 5.4)E O (-3.4 - 5.41E O (-5.5 - 5.8)E O

  • ( 0/ 241e *( 0/ 12)* et 0/ 12)e CS-134 ( 36) 15. (-2.7 t 1.2)E -1 21 (-1.8 t 2.81E -1 (-1.8 t 2.8)E -1

( 0) (-1.6 - 1.0)E 0 (-1.7 - 1.3)E O (-1.7 - 1.3)E 0 s *( 0/ 24)* *( 0/ 12)e *( 0/ 12)*

c CS-137 ( 36) 18. (-5.2 i 18.8)E -2  !! ( 5.8 28.2)E -2 (-4.4 t 2.4)E -1

( 0) (-1.3 - 2.0)E 0 (-1.3 - 2.0)E 0 (-;.8 - 1.2)E O I *( 0/ 24)* *( 0/ 12)e et 0/ 12),

BA-140 ( 36) 60. (-5.6 t 3.2)E -1 11 (-5.1 s 4.1)E -1 (-8,5 t 5.6)E -1

( 0) t-3.8 - 2.4)E O (-3.3 - 1.8)E 0 (-3.9 - 2.9)E O

  • ( 0/ 24)* e( 0/ 12)e et 0/ 12)*

CE-141 ( 36) ( 1.1 1 219.3)E -3 11 ( 2.9 1 2.9)E -1 (-1.2 2 2.9)E -1

( 0) (-1.9 - 2.4)E O (-1.6 - 1.3)E 0 (-1.6 - 1.8)E 0 et 0! 24)* *( 0/ 12)* *( 0/ 121e CE-144 ( 36) (-1.0 i 1.2)E 0 11 (-1.0 1.6)E 0 (-2.6 1 1.6)E O

( 0) (-1.6 - .9)E i (-1.1 - .7)E 1 (-1.4 - .61E 1

  • ( 0/ 24)e et 0/ 12)e *( 0/ 121e H-3 ( 12) 2000. ( 1.0 t .5)E 2 12 ( 1.0 t .8)E 2 ( 7.1 1 9.9)E 1

( 0) (-9.3 - 27.5)E 1 (-7.0 - 25.5)E I (-1.9 - 3.0)E 2 et Oi 8)* et 0/ 4)* *( 1/ 4)e e NON4RITIE REFERS TO TE lOGER OF SEPVATE MEASUREMENTS lEICH WERE GREATER THAN TEN (10) TIES T)E AVERACE BACKCR0thD FOR TE PERIOD (F TE REPORT.

    • TE FRACTION OF SAMFtE ANALYSES YlELDING DETECTABLE EARIETNTS

(!.E. >3 STD ICVIATIONS) IS INDICATED WITH *( )*,

J) Aquatic Vegetation Twice during 1983, cuttail samples were collected from one indicator and one control location. Each sample was analyzed for gamma-emitting radionuclides. Other than naturally-occurring K-40, no radionuclides were detected, i

ENJIROPtOTAL RADIOLOGICAL PROCWt SlfWEV l

, VEPXHT YtMIE NLCLEle POER STATICN. VEflVJN. VT ]

JMJARY - ECErfR 1983 i

  • LHITS: PCl/KG WET IG!lft: AQUATIC VEETATION

?

i INDICATOR STATIONS STATION WITH HIGEST EAN CONTROL STATIONS nuune+neuen n+++niu u u utu a e e e H not *HM*++4 H e

. MDi(NJCLIES EAN fGN EAN

! (NO. ANALYSES) REQV! RED RANGE STA. RANE RANGE

' NO. ETECTED++

(NON-90tJTIE)* LLD NO. ETECTEDet NO. NO. DETECTEDet K-7 ( 4) ( l.4 i .2)E 2 11 ( 1.4 t .2)E 2 ( 7.6 1 5.5)E 1

( 0) ( 1.2 - 1.6)E 2 ( 1.2 - 1.6)E 2 ( 2.1 - 13.1)E 1 et 0/ 2)s e( 0/ 21e *( 0/ 21e K-40 ( 4) ( 3.1 t .2)E 3 11 ( 3.1 t .2)E 3 ( 2.8 i .7)E 3

( 0) ( 3.0 - 3.3)E 3 ( 3.0 - 3.3)E 3 ( 2.1 - 3.6)E 3

  • ( 2/ 2)* *( 2/ 2)e et 2/ 2)e CR-51 ( 4) (-2.0t 4.7)E 1 21 (-6.0 t 27.5)E O (-6.0 t 27.5)E O

( 0) (-6.7 - 2.6)E 1 (-3.3 - 2.2)E I (-3.3 - 2.2)E 1 el 0/ 2)e *( 0/ 2)* et 0/ 2)*

P9(-54 ( 4) ( 5.0 1 5.1)E 0 11 ( 5.0 t 5.1)E 0 (-4.6 t 25.3)E -1 1 ( 0) (-1.4 - 101.0)E -1 (-1.4 - 101.0)E -1 (-3.0 - 2.1)E 0

' *( 0/ 21s et 0/ 21e *( 0/ 21e y

C0-58 ( 4) S f 94 t 12.3)E 0 11 ( 9.4 1 12.3)E 0 (-1.6 t 7.9)E -1

( 0) ,- 21.7)E O (-2.8 - 21.7)E 0 (-9.5 - 6.2)E -1

,(f.8-0/ 21e *( 0/ 2)s et 0/ 2)*

FE-59 ( 4) ( l.8 t 1.1)E I 11 ( 1.8 k 1.1)E 1 ( 1.6 t .8)E 1

( 0) ( 7.3 - 28.6)E 0 ( 7.3 - 28.6)E 0 ( 8.0 - 24.6)E 0 et 0/ 2)e *( 0/ 21e a( 0/ 2)e CO-60 ( 4). (-7.5 t 7.4)E 0 21 ( l.3 k .5)E i ( 1.3 t .5)E 1

( 0) (-1.5 - .01E 1 ( 8.1 - 17.6)E O ( 8.1 - 17.6)E O et 0/ 2)* *( 0/ 2)s a( 0/ 2)*

ZN-65 ( 4) (-2.2 t 1.8)E 1 21 (-1.1 1 12.5)E 0 (-1.1 k 12.5)E 0

( 0) (-3.9 - .4)E 1 (-1.4 - 1.1)E 1 (-1.4 - 1.1)E 1

  • ( 0/ 2)e *( 0/ 21e et 0/ 2)e ZR-95 ( 4) ( 3.2 t 2.0)E 1 11 ( 3.2 k 2.0)E 1 (-1.4 i .8)E 1

( 0) ( 1.2 - 5.2)E I ( 1.2 - 5.2)E 1 (-2.3 - .6)E 1

  • ( 0/ 2)e *( 0/ 2)* et 0/ 21e l

l l

!

  • NON-R0llTIE REFERS TO TE NLMER OF SEPARATE EASIEDGTS leilCH lERE GREATER THAN TEN (10) TIES TT AVEPAT BACXOR0Lfo FOR TE PERIOD OF TE REPORT.
    • TE FPACTION OF SAffLE /NLYSES Y!ELDifiG DETECTABLE EASUREENTS (1.E. >3 STD DEVIATIONS) IS INDICATED WITH *( le.

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DNIEN1 ENTAL RADIRM.! CAL FTCGRAM Sll1 MARY VERMONT YiNEE EQ. EAR FOWEf< STM10N, ER*.(.N. VT I JMUARY - KNMKR 1993

$ ED!lli: AQUATIC VEETATION UNITS: Kl/KG WET INDICAT M STATIONS STATION WITH HIGE ST M CONTROL STATIONS em mHeene*+n e H Heem*H HimHH H HeHHHeHHH RADl010CLIDES M M EAN f (NO. ANftYSES) REQUIRED RMCE STA. RANGE RANGE I (NON-W)UTIEle L1.D NO. DETECTEDet NO. NO. DETECTEDu NO. DETECTEDee RU-103 ( 4) ( 4.3 t 9.3)E 0 21 ( 7.7

  • 3.1)E 0 ( 7.7 1 3.1)E 0 l

( 0) (-5.0 - 13.6)E 0 ( 4.6 - 10.8)E O ( 4.6 - 10.8)E O (

et 0/ 2)e et 0/ 21e *( 0/ 2)* l RU-106 ( 4) (-3.2 1 3.1)E 1 21 ( 1.4 t 2.1)E 1 ( 1.4 t 2.1)E 1

( 0) (-6.2 - .1)E 1 (-8.0 - 35.0)E O (-8.0 - 35.01E O

  • ( 0/ 2)e *( 0/ 21e et 0/ 2)e I-131 ( 4) (-1.8 t 5.5)E 1 11 (-1.8 & 5.5)E 1 (-3.9 t .7)E 1

( 0) (-7.3 - 3.7)E 1 (-7.3 - 3.7)E 1 (-4.5 - -3.2)E 1

  • ( 0/ 2)e *( 0/ 2)e *( 0/ 2).

CS-1?4 ( 4) ( 5.1 t 4.3)E 0 11 ( 5.1 & 4.3)E O (-4.0 t 36.3)E -1 1 0) ( 8.9 - 94.0)E -1 ( 8.9 - 94.0)E -1 (-4.0 - 3.2)E O

  • ( 0/ 2)e et 0/ 2)e et 0/ 2)*

CS-137 ( 4) (-8.'2 1 2.6)E O 21 (-3.1 i 7.3)E 0 (-3.1 t 7.3)E O

} (-1.0 - .4)E 1 (-1.0 - .4)E 1 J

( 0) (-1.1 - .6)E 1 et 0/ 2)e et 0/ 2)e *( 0/ 2)*

BA-140 ( 4) (-2.3 i 1.7)E 1 21 ( 9.5 t 332.5)E -1 ( 9.5 t 332.51E -1

( 0) (-4.0 - .6)E 1 (-3.2 - 3.4)E 1 (-3.2 - 3.4)E 1 et 0/ 21e *( 0/ 21e et 0/ 21e u E-141 ( 41 ( 7.6 t 10.8)E 0 21 ( 2.6 t 1.9)E 1 ( 2.6 t 1.9)E 1

( 0) (-3.1 - 18.4)E 0 ( 7.6 - 45.3)E C ( 7.6 - 45.3)E O

  • ( 0/ 2)e e( 0/ 2)e e( 0/ 2)e i

E-144 ( 4) ( l.7 t 1.4)E 1 11 ( 1.7 t 1.4)E 1 ( 1.4 t 21.01E O

( 0) ( 3.3 - 31.3)E O ( 3.3 - 31.3)E 0 (-2.0 - 2.2)E 1 et 0/ 2)* et 0/ 2)* et 0/ 2)*

l AC-228 ( 4) ( 8.7 t 18.3)E 0 21 ( 2.4 i .8)E 1 ( 2.4 t .8)E 1

( 0) (-9.6 - 27.01E 0 ( 1.6 - 3.2)E 1 ( 1.6 - 3.2)E 1 et 0/ 21e et 0/ 2)* et 0/ 2)*

e NON-ROUTIE REFERS TO TE KtGER OF r APATE EASURDOTS WICH WERE GREATER .

THM TDi (10) TIES TE AVGACE BACXOROLHD FOR TE P8100 0F TE REPORT.

    • TE FRACTION OF SAIRE Af@ LYSES YlELDING DETECTABLE EASWDOTS (1.E. >3 STD DEVIATIONS) IS INDICATED WITH et le.

i l t 1-

I K) Sediment ,

l l

During 1983, sediment sampics were collected from three locations.

In June, a grab sample was collected from each station, and in September, a core was taken at each. Each sample was analyzed for gamma-emitting radionuclides.

Cesium-137 was detected in all but one sample. As has been discussed in previous Vermont Yankee Radiological Environmental Surveillance Reports, this radioactivity has been due to nuclear weapons testing fallout. Since there were no liquid releases during 1982 or 1983, it can be concluded that the similar levels of Cs-137 in 1983 sediment samples were due also to nuclear weapons testing fallout.

Low levels of plant-related Co-60 were detected in a special series I of non-routine sediment samples collected during 1983, and are the subject of a separate report (see LER 83-23/3L).

Except for naturally-occurring Be-7, K-40, and Ac-228, and the Cs-137 and Co-60 discussed above, no radionuclides were detected in sediment samples during 1983.

I-

ENV!fotOTAL RADIOLOGICAL FEM SLMY NNT YAWEE NREfA KWER STATICN, tTRNM. VT JAM.lARY - [ECDEG 1983 K Dllfi: SEDI E NT LNITS: K!/KG MY c

INDICATOR STATIONS STATION WITH H10K ST E AN CONTKf. STATICNS eu nioneenu we eueensteenesessennu neeneseeinus RADIONRIDES EAN EAN ENi (NL #4ALYSES) REQUIREI) RANGE STA. RANGE RANT

' NO. NO. DETECTEDn NO. DETECTEDu (NON-ROUTIEle LLD NO. DETECTEDu E-7 ( 91 ( 2.5 1 1.3)E 2 12 ( 3.6 t 1.5)E 2 ( 2.0 1 3.01E 2

( 0) (-2.4 - 6.4)E 2 ( 1.7 - 6.4)E 2 (-2.6 - 7.5)E 2 i et 0/ 6)e et 0/ 3)e *( 1/ 3)*

K-40 ( 9) ( 9.6 t .8)E 3 12 ( l.1 i .1)E 4 ( 7.5 t .7)E 3

( 0) ( 7.8 - 12.5)E 3 ( 9.6 - 12.5)E 3 ( 6.8 - 8.8)E 3

  • ( 6/ 6)e et 3/ 3)e *( 3/ 3)*

CR-51 ( 9) (-6.3 t 8.6)E 1 21 ( 3.8 t 1.4)E 2 ( 3.8 t 1.4)E 2

( 0) (-3.6 - 1.9)E 2 ( 1.6 - 6.4)E 2 ( 1.6 - 6.4)E 2

  • ( 0/ 6)* *( 0/ 3)* *( 0/ 3)*

1 9 -54 ( 9) (-1.1 1 1.4)E 1 11 ( 1.6 i .5)E 1 ( l.3 2 .6)E 1

( 0) (-5.9 - 2.7)E i ( 9.6 - 26.6)E 0 ( 4.3 - 23.6)E O

  • ( 0/ 6)e et 0/ 3)* *( 0/ 3)*

CC-58 ( 9) (9.it 7.1)E 0 12 ( 1.4 t .2)E 1 (-1.6 i 1.0)E I

- ( 0) (-2.0 - 3.2)E 1 ( 9.1 - 16.3)E 0 (-3.5 - .1)E 1 et 0/ 6)e et 0/ 3)e et 0/ 31e m

FE-59 I 9) (-3.4 t 2.5)E 1 11 (-3.2 t 1.5)E 1 (-3.4 1 2.8)E 1

~

( 0) (-1.4 - .2)E 2 (-5.1 - .3)E 1 (-7.0 - 2.2)E 1 e( 0/ 6)e *( 0/ 31e *( 0/ 3)e (X)-60 ( 9) ( 3.5 t 133.6)E -1 21 ( 8.4 t 13.5)E O ( d.4 t 13.5)E O

( 0) (-5.1 - 3.8)E 1 (-1.9 - 2.3)E 1 (-1.9 - 2.3)E 1 et 0/ 6)e *( 0/ 3)* *( 0/ 3)*

ZN-65 ( 9) (-1.8 t 1.7)E 1 11 (-1.0 1 2.6)E 1 (-1.7 2 3.8)E 1

( 0) (-6.8 - 3.9)E 1 (-5.2 - 3.9)E 1 (-8.9 - 4.0)E 1 et 0/ 6)* *( 0/ 3)e et 0/ 3)e ZR-95 ( 9) ( 2.9 1 25.6)E 0 21 ( 3.6 t 2.3)E 1 ( 3.6 i 2.3)E 1

( 0) (-6.4 - 11.5)E 1 ( 1.0 - 8.1)E 1 ( 1.0 - 8.1)E 1

  • ( 0/ 6)e e( 0/ 3)e et 0/ 3)e J

l e N0H100 TIE REFERS TO M NUMB 0( OF SEPMATE EASWEMENTS WICH IGE GREATER TrMN TDI (10) TIES M #KRAGE BACKm0LND FOR TE PERIOD OF TK REPORT.

    • TE FRACTION OF SATLE #MLYSES YlELDING DETECTARE EASWDOTS (1.E. 42 STD DEVIATIONS) IS INDICATED WITH *( le.

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EWIRONTifft RADIOLOGICAL PKCPM SLft%RY VERftWT YM6IE NJC11M POER STATION. VEP4JN. VT JAMJMY - IECEMER 1983 EDitJt: SEDIENT tNITS: PC1/KG DRY INDICATOR STATIONS STATION WliH HIGEST e CONTROL STATIONS

  • H4HeHititHeH e44 *el* HHee t e++ He *++ H eeHtHellHiles IMD10NulllDES S e n (NO. ANN.YSES) REQUIRED R#dGE STA. RANE RANE (NON-90(ITIE)e LLD NO. DETEC1EDee NO. NO. DETECTEDee NO. DETECTEDM lt)-103 ( 9) ( 1.1 1 2.1)E 1 12 ( 2.5 i 3.0)E 1 (-1.0 t 2.4)E 1

( 0) (-6.4 - 7.1)E 1 (-3.2 - 7.1)E 1 (-5.8 - 1.8)E 1

  • ( 0/ 6)* et 0/ 3)* *( 0/ 3)*

ftl-106 ( 9) ( 2.7 i 6.7)E 1 21 ( 6.2 2 9.9)E 1 ( 6.2 i 9.9)E 1

( 0) (-1.9 - 2.7)E 2 (-1.2 - 2.2)E 2 (-1.2 - 2.2)E 2 ct 0/ 6)e et 0/ 3)e e( 0/ 3)*

I-131 ( 9) (-2.5 i 1.7)E 2 12 (-1.1 t 1.8)E 2 (-2.1 i 1.1)E 2

( 0) (-1.0 - .1)E 3 (-4.6 - .9)E 2 (-3.9 - .1)E 2 et 0/ 6)e *( 0/ 3)e et 0/ 3)e CS-134 ( 9) 150. ( 2.2 i 12.3)E 0 12 ( 3.0 t 25.5)E o (-1.0 t .9)E 1

( 0) (-3.8 - 5.0)E 1 (-3.8 - 5.0)E 1 (-2.6 - .6)E 1

  • ( 0/ 6)* el 0/ 3)* e( 0/ 3)e CS-137 ( 9) 190. ( 1.5 t .2)E 2 12 ( 1.7 t .4)E 2 ( 8.4 t 1.9)E 1

( 0) ( 7.2 - 24.5)E 1 ( 9.9 - 24.5)E 1 ( 6.1 - 12.1)E 1

  • ( 6/ 6)e et 3/ 3)e *( 2/ 3)*

84-1 4 ( 9) (-1.2 i .9)E 2 12 (-6.8 f 18.4)E 1 (-1.3 i ;2)E 2

( 0) (-3.9 - 2.4)E 2 (-3.9 - 2.4)E 2 (-1.8 - -

1.0)E 2 et 0/ 6)e *( 0/ 3)e *( 0/ 3)*

CE-141 ( 9) ( 3.3 t 1.0)E 1 21 ( 7.5 i 1.3)E 1 ( 7.5 t 1.3)E 1

( 0) (-6.2 - 65.6)E 0 ( 5.0 - 9.6)E 1 ( 5.0 - 9.6)E 1

  • ( 0/ 6)e *( 0/ Sie *( 0/ 3)*

l l E-144 ( 9) (-1.0 1 4.5)E 1 12 ( 5.9 t .61E 1 ( 3.2 i 6.1)E 1

( 0) (-2.1 - .7)E 2 ( 4.7 - 6.8)E 1 (-8.4 - 11.9)E 1 l *( 0/ 3)e *( 0/ 3)e et 0/ 6)e AC-228 ( 9) ( 6.2 1 1.01E 2 12 ( 8.6 i .7)E 2 ( 6.2 i .9)E 2 l ( 0) ( 2.9 - 9.4)E 2 ( 6.8 - 9.4)E 2 ( 4.7 - 7.9)E 2 et 6/ 6)* st 3/ 3)e et 3/ 3)e l

t e NON-R0l1 TIE RETERS TO TE 14JMBER OF SEPMATE EASUREENTS WH101 ERE GREATER

! T)Wi TEN (10) TIES TE AVERAGE BACX0R0lND FOR TE PERIOD OF TE REPORT.

H TE FRACil@( E SAff'LE #@ LYSES YlE1. DING DETECTABLE EAstRElO(TS i (f.E. >3 STD DEVIATIONS) IS !@!CATED WITH e( le.

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I L) Finfish Twice during 1983, finfish samples were collected from each of three locutions. Each sample consisted of mixed freshwater species. All were analyzed for gammn-emitting radionuclides.

Cesium-137 was detected in six of the seven samples collected. As can be seen in the following data table, the mean and range for indicator stations are lower than those for the control stations, indicating that the radioactivity is not due to plant operations but to nuclear weapoas testing fallout. No other radionuclides were detected except for naturally-occurring K-40.

s f

f

E)N!RfMENTAL RADIOLOGICAL Ff(JCRM St%RY VERMONT YANKEE NLCLEAR POWER STAT!0h. (UWJN. VT J MIARY - KCEMBER 1983 EDitM: FlWISH tJNITS: PC1/KG WET l INDICATOR STATIONS STATIM WITH HIGEST M CONTROL STATIM 3 nuunnenenee emneenn unm ene** enneneninse RADIOMJQ. IDES M M M (NO. ANALYSES) REQUIRED RANK STA. RANCE RANGE (N0HOUTIE)* t1D NO. ETECTEDee NO. NO. DETECTEDn NO. DETECTED **

1 E-7 ( 7) ( l.0 t 3.6)E 1 21 ( 1.2 i .5)E 2 ( !.2 t .5)E 2 (

( 0) (-1.3 - .7)E 2 ( 7.3 - 16.5)E 1 ( 7.3 - 16.5)E 1 et 0/ 5)e et 0/ 2)e *( 0/ 2)e K-40 ( 7) ( 3.3 i .2)E 3 12 ( 3.5 t .2)E 3 ( 3.4 k .2)E 3

( 0) ( 2.7 - 3.7)E 3 ( 3.4 - 3.7)E 3 ( 3.3 - 3.6)E 3 et 5/ 5)* *( 2/ 2)e *( 2/ 21e CR-51 ( 7) (-7.3 t 7.2)E i 12 ( 2.9 2.3)E 1 ( 1.2 i 2.5)E 1

( 0) (-3.5 - .5)E 2 ( 6.1 - 52.2)E O (-1.3 - 3.7)E 1

  • ( 0/ 5)* *( 0/ 2)e et 0/ 2)*

< P91-54 ( 7) 130. ( 7.1 1 49.5)E -1 21 ( 7.9 t 2.9)E O ( 7.9 t 2.9)E 0

( 0) (-1.4 - 1.3)E 1 ( 5.1 - 10.8)E 0 ( 5.1 - 10.8)E 0 et 0/ 5)e e( 0/ 218 e( 0/ 2)*

Q)-58 ( 7) 130. ( 2.3 i ll.3)E 0 12 ( !.5 i .8)E 1 (-2.4 1 .3)E O y

( 0) (-3.9 - 2.3)E 1 ( 6.6 - 23.4)E 0 (-2.7 - -2.1)E O at 0/ 5)e et 0/ 21e et 0/ 2)*

t FE-59 ( 7) 260. (-2.5 i 1.2)E 1 12 (-7.0 t 4.1)E 0 (-1.6 i 4.4)E 1

( 0) (-6.5 - .3)E I (-1.1 - .3)E i (-6.0 - 2.ME 1 et 0/ Sie *( 0/ 2)e *( 0/ 2)e CD-60 ( 7) 130. ( 2.0 t 6.4)E O 11 ( 8.7 i 8.7)l! 0 (-2.0 t .81E 1

( 0) (-1.1 - 2.5)E 1 (-4.7 - 25.1)E 0 (-2.8 - -1.3)E 1

  • ( 0/ Sie *( 0/ 3)e *( 0/ 2)*

ZN-65 ( 7) 260. (-9.5 1 154.3)E -1 21 ( 1.1 i .8)E i ( l.1 i .8)E 1

( 0) (-5.9 - 2.9)E 1 ( 2.2 - 18.8)E 0 ( 2.2 - 18.8)E 0

  • ( 0/ 5)e *( 0/ 2)* *( 0/ 2)*

2R-95 ( 7's (-1.5 1 2.5)E 1 12 ( 1.7 i 2.1)E 1 ( l.1 i .2)E 1

( 0) (-a.1 - .4)E 2 (-4.5 - 38.5)E 0 ( 8.6 - 12.5)E 0 el 0/ 5)* *( 0/ 2)* *( 0/ 2)e

  • NDHOUTIE REFIRS TO M RMER OF SEPARATE EASUREENTS WICH WERE GREATER THVI TEN (10) TIES TE AWRAGE BACKOROLND FOR TE PERIOD OF M REPORT.
    • TE FRACTION OF SA&LE ANfiVSES YlELDING DETECTABLE EASLRDENTS (1.E. >3 STD DEVIATIONS) IS INDICATED WITH *( le.

EN91RCNENTAL RADICLOGICAL FWJGRM SlMMRY VERKIN7 YAWEE C1 CLEAR P06 STATION. VEM% W JMJMY - MEPJfR 1983 f EDIUM: FlWISH LNITS: PCl/KG ET INDICAT E STATIONS STATION WITH HIGEST EAN CONTROL STATIONS

    • 4 t Hil HeeHHis eefe4 H1444*f HieH H H H etMilitHtflete RADIONUCLIDES EAN EAN EAN (NO. MALYSES) EQUIRED RANCE STA. RANCE RANGE (NON-RCtJTIE)* l.LD NO. DETECTED ++ NO. NO. DETECTED ** NO. DETECTEDH R)-103 ( 7) (10.0 t 8.9)E 0 12 ( 2.0 t 1.3)E 1 ( 1.3 i .0)E 1

( 0) (-1.7 - 3.2)E 1 ( 7.3 - 32.4)E 0 ( 1.3 - 1.4)E 1

  • ( 0/ 5)* et 0/ 21e et 0/ 2)e RU-106 ( 7) ( l.9 t 5.9)E 1 21 ( 1.3 t 1.2)E 2 ( !.3 1.2)E 2

( 0) (-1.6 - 1.7)E 2 ( l.1 - 24.9)E 1 ( 1.1 - 24.9)E 1

  • ( 0/ 5ie et 0/ 2)* et 0/ 2)*

1-131 ( 7) (-3.7 1 1.4)E 2 21 ( 8.3 i 11.4)E I ( 8.3 i 11.4)E 1

( 0) (-7.4 - .2)E 2 (-3.1 - 19.7)E 1 (-3.1 - 19.7)E 1

  • ( 0/ 5)* a( 0/ 2)* *( 0/ 2)*

CS-134 ( 7) 130. (-7.8 i 3.6)E 0 11 (-3.6 t 3.7)E 0 (-8.8 i 7.2)E O

( 0) (-1.9 - .1)E 1 (-1.1 - .1)E 1 (-1.6 - .2)E I

  • ( 0/ 5)* et 0/ 3)e et 0/ 21e CS-137 ( 7) 150. ( 4.'9 1 1.2)E 1 21 ( 6.7 t 1.7)E 1 ( 6.7 t 1.7)E 1

) ( 0) ( 1.9 - 8.0)E 1 ( 5.1 - 8.4)E 1 ( 5.1 - 8.4)E 1 e( 4/ Sie et 2/ 21e et 2/ 2)*

BA-140 ( 7) (-8.6 1 2.2)E 1 21 (-4.6 t 5.2)E 1 (-4.6 t 5.2)E 1

( 0) (-1.5 - .3)E 2 (-9.8 - .6)E 1 (-9.8 - .6)E 1

  • ( 0/ Sie et 0/ 2)e *( 0/ 2)*

- E-141 ( 7) ( 2.5 t 1.2)E 1 12 ( 3.9 i .2)E 1 ( 1.8 i .2)E 1

( 0) (-1.6 - 4.8)E 1 ( 3.6 - 4.1)E 1 ( 1.7 - 2.0)E 1

  • ( 0/ 5)e et 0/ 2)* *( 0/ 2)*

E-144 ( 7) (-2.0 1 2.4)E 1 21 ( 6.6 i 6.8)E 1 ( 6.6 t 6.8)E 1

( 0) (-7.7 - 4.2)E 1 (-1.8 - 134.0)E 0 (-1.8 - 134.0)E O st 0/ 5)* *( 0/ 2)* et 0/ 2)*

AC-220 ( 7) ( 2.3 1 14.5)E 0 21 ( 2.4 i 5.3)E 1 ( 2.4 t 5.3)E 1

( 0) (-3.7 - 3.0)E 1 (-2.9 - 7.7)E 1 (-2.9 - 7.7)E 1 st 0/ 5)* *( 0/ 2)e e( 0/ 2)*

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  • NON-ROUTIE REFERS TO M NLMBER OF SEPARATE EASLRDENTS WHICH EE CREATER T)W TEN (10) TIES TIE AVERAGE BACxm0LC FOR M PERIOD OF M REPORT.

! et M FRACTION OF S#FLE ANALYSES Y1El. DING DETECTABLE EASLFEENTS (I.E. )3 STD K VIATIONS) IS INDICATED WITH et le.

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M) Direct Radiation Direct gamma radiation exposure was determined from the use of thermoluminescent dosimeters (TLDs). Two CaF :Mn 2

TLDs were placed at each of the monitoring stations. The dosimeters at eighteen indicator stations and three control stations were collected and read out on a monthly schedule.

During June, the results for ten badge sets were not used due to instrument malfunction. The malfunction was apparently caused by extremely high humidity. The exposure that each of these sets would have measured was assumed to be equal to the annual average for that length period and that station. Sunearles of the results for 1982'and 1983 can be seen in the table below. Annual average exposure rates are given for each station in Table 3.1.

Environmental Radiological Program Summary Vermont Yankee Nuclear Power Station, Vernon, Vermont January - December 1983 Medium: Direct Radiation Units: Micro-Rem per

( Measurements (TLD) Hour Indicator Station With Control f- Stations Highest Mean Stations Mean Mean Mean Range Station Range Range (No. Meas.)* No. (No. Meas.)* (No. Meas.)*

i 9.9 12.7 10.9 l

4.6 - 11.8 37 8.9 - 16.7 10.0 - 12.7 i

(98) (12) (36)

  • Most measurements based on readings from two TLD chips.

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J' In Table 3.2, the annual average exposure rate for each Zone 1 station, and for all of them combined, was compared to the mean of

( the three Zone 2 stations for that year (s). By comparing the 1983 ratios with those from other years, it is evident that the Zone 1 ambient radiation levels have not changed significantly over the last six years with respect to the Zone 2 levels. This approach was used to eliminate any influence from global or regional changes in ambient radiation levels or from changes in the performance of the TLD system. Zone I site boundary stations were not included in the comparison since they are on-site locations and are subject to plant-related variations that could obscure seasonal or annual trends.

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Table 3.1 Vermont Yankee Summary of Direct Radiation Measurements. 1983  ;

i Micro-R Station Description Zone Per Hour

  • GM-1.0 Hinsdale, NH 1 8.7 GM-1.1 N. Hinsdale, NH 1 8.5 GM-1.2 Hinsdale Sub. 1 9.1 GM-1.3 River Sta. No. 3.3 1 8.3 GM-1.4 Fairman Road 1 8.6 GM-1.5 Tyler Hill 1 9.0 GM-1.6 Site Boundary 1 9.1 GM-1.7 Site Boundary 1 8.7 GM-1.8 Site Boundary 1 9.9 GM-1.9 Site Boundary 1 10.0

( GM-1.10 Site Boundary 1 9.2 GM-1.11 Site Boundary 1 8.6 GM-1.12 Site Boundary 1 9.0 GM-1.13 Site Boundary 1 10.2 GM-1.14 Site Boundary 1 22.7 GM-1.15 Site Boundary 1 11.3 GM-1.16 Site Boundary 1 9.1 GM-1.17 Vernon School 1 8.8 GM-2.1 Hogback Mt. 2 8.1 GM-2.2 Spofford Lake 2 8.6 GM-2.3 Northfield, MA 2 8.3

  • Annual average exposure rate.

Table 3.2 Vermont Yankee Ratio

  • of Zone 1** to Zone 2 Exposures 1983 1982 1978-82 Station Description Ratio Ratio Ratio GM-1.0 Hinsdale, NH 1.04 1.05 1.04 CM-1.1 N. Hinsdale, NH 1.02 1.02 1.00 GM-1.2 Hinsdale Sub. 1.09 1.09 1.10 GM-1.3 River Sta. No. 3.3 1.00 1.03 1.05 GM-1.4 Fairman Road 1.03 1.09 1.08 CM-1.5 Tyler Hill 1.08 1.08 1.08 CM-1.17 Vernon School 1.06 1.08 1.10 All Zone 1** stations 1.05 1.06 1.06
  • Ratio of the ar.nual average direct radiation exposure for a station to the mean of the Zone 2 (control) stations for that year.
    • Site boundary stations were not included.

4.0 QUALITY ASSURANCE PROGRAM Three separate Quality Assurance programs were performed during 1983 to demonstrate the validity of laboratory analyses by the Yankee Atomic Environmental Laboratory (YAEL).

YAEL participates in the EPA Interlaboratory Comparison (cross-check) program for those species and matrices routinely analyzed by the. laboratory.

This provides an independent check of accuracy and precision of the laboratory analysis. When the results of the cross-check analysis fall outside of the control limit, an investigation is made to determine the cause of the problem and corrective measures are taken.

YAEL maintains an intralaboratory quality control program to assure the validity and reliability of the data. This program includes quality control of laboratory equipment, use of reference standards for calibration, determination of counting efficiencies and analysis of blank and spiked samples. The records of the quality control program are reviewed by the responsible cognizant individual, and corrective measures are taken whenever applicable.

A blind duplicate / replicate program is maintained in which sampics are prepared from split or homogenous media and sent to the laboratory for analysis. The results from this blind duplicate program are used to check for precision in laboratory analyses.

1 EPA Interlaboratory and Intralaboratory Results The Quality Assurance program implemented at the analytical laboratory indicated good precision and accuracy in reported values. Table 4.1 shows the results of accuracy and precision for laboratory analyses in 1983 for EPA samples, intralaboratory ana. lyses, and interlaboratory crosc-check analyses.

For accuracy, 57.2 and 82.7 percent of the results were within 5 and 10 percent of the known values, respectively, with 95.7 percent of all results falling within the laboratory criteria of 15 percent. For precision, 79.7 and 93.8 percent of the results were within 5 and 10 percent of the mean, respectively, with 99.5 percent of all results meeting the laboratory criteria of 15 percent.

, . , . . - ,p ,- , -.n - . , . - - . .

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I Table 4.1 EPA Interlaboratory and Intralaboratory Results Accursey Total Number 0 to 5% 0 to 10% 0 to 15%*

of samples 830 475 686 794 (57.2%) (82.7%) (93.7%)

Precision Total Number 0 to 5% 0 to 10% 0 to 15%*

pf Sampics 802 639 752 798 (79.7%) (93.8%) (99.5%)

  • This category also contains those samples having a verified zero concentrat'.:a which were analyzed and found not to contain the isotope of interest.

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d Blind Duplicate-Replicate Program  ;

1 A total of 62 paired samples were submitted for analysis during 1983. ,

The data base used for the duplicate-replicate analysis consisted of paired measurements of 26 gamma emitting nuclides, H-3, Sr-89, 3r-90, low level I-131 and gross beta. A dual level criteria for agreement was established. If the

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paired measurements fall within i 15 percent of their average value, then agreement between the measurements has been met. If the value falls outside of the i 15 percent, then a two standard deviation range (95 percent confidence level) for duplicates and a three standard deviation range (99 percent confidence level) for replicates is established for each of the analyses. If the ranges overlap, agreement is obtained. One thousand five hundred and eighty-nine paired duplicate and replicate measurements were analyzed for 1983. A total of 99.9 percent of all measurements fell within the established criteria discussed above. The two measurements that did not meet the criteria were a Se-75 and a Ru-106 measurement from a gamma spectroscopy analysis on a single milk sample. The measurements were, however, within the three standard deviation criteria (99 percent confidence level). Positive Cs-137 and K-40 concentrations on that sample, along with all of the other less-than-detectable concentrations, did meet the acceptance criteria.

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SUMMARY

During 1983, several samples collected as a part of the radiological environmental monitoring program at Vermont Yankee had detectable levels of man-made radionuclides. Most of this radioactivity has been shown to be due ,

to fallout from atmospheric nuclear weapons tests. That which was likely due to plant operations was detected as follows: one ground water sample contained Mn-54, probably due to cross-contamination of the sample when it was handled inside the plant; one air particulate filter showed co-60; and special sediment samples at one on-site location also showed Co-60. In all of these cases, it has been shown that the detected levels of plant-related radionuclides were very low and that the possible dose consequences to a conservative, hypothetical member of the public are it.cignificant.

REFERENCES

1. USNRC Regulatory Guide 1.109, " Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR50, I.ppendix I", 1977.
2. Radiological Environmental Monitoring Report, 1982. Maine Yankee Atomic Power Company.
3. USNRC Radiological Assessment Branch Technical Position, Revision 1 November 1979.

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DESIGRATED ORIGINAIJ VERMONT ANKEE -

certifiea 37 3 ". R d. @? %

"' U NUCLEAR PdWER CORPORNI'lON RD 5. Box 169. Ferry Road. Brattleboro. VT 05301 g

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ENGINEERING OFF!CE June 28, 1984 Q/ FVY 84-68 1671 WORCESTER ROAD FRAMINGHAM. MASS ACHUSETTS 01701

., T E LE PHONE 617-872-6100 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, PA 19406 Attention: Dr. Thomas E. Murley l Regional Administrator

Reference:

(a) License No. DPR-28 (Docket No. 50-271)

Subject:

Vermont Yankee 1983 Annual Radiological Environmental Surveillance Report

Dear Sir:

Enclosed herewith, please find three (3) copies of the Annual Radiological Environmental Surveillance Report for the Vermont Yankee Nuclear Power Station. This report contains a summary and analysis of the radiological environmental data collected for the calendar year 1983.

We trust that this.information is deemed acceptable; however, should you have any questions regarding this submittal, please contact us.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORPORATION

.h hrstc.de/

J. B. Sinclair Licensing Engineer 3DS/VS Enclosure a

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