SWRHL-87r
   FINAL  REPORT OF  ENVIRONMENTAL  SURVEILLANCE
   FOR PEWEE  1, EXPERIMENTAL PLANS  II AND  III
       NOVEMBER  21 AND DECEMBER  4,  1968
                      by
           Environmental Surveillance
    Western Environmental  Research  Laboratory

         ENVIRONMENTAL PROTECTION AGENCY
            Published September 1971
This surveillance performed under a Memorandum of
          Understanding (No. SF 54 373)
        for the Nevada Operations Office
          U. S. ATOMIC ENERGY COMMISSION


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"This report was prepared  as  an  account of work  sponsored by the United
 States Government.   Neither  the United States nor the United  States
 Atomic Energy Commission,  nor any of  their employees, nor any of their
 contractors, subcontractors, or their employees, makes any warranty,
 express or implied,  or  assumes  any  legal liability or responsibility
 for the accuracy,  or process disclosed, or represents that its use
 would  not infringe privately-owned  rights."
       Available from the National Technical Information Service,
                     U. S. Department of Commerce
                         Springfield, VA. 22151
                Price:  paper copy $3.00; microfiche $.95.


 Oil!

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                                                                           SWRHL-87r
              FINAL REPORT OF ENVIRONMENTAL SURVEILLANCE
              FOR PEWEE 1, EXPERIMENTAL PLANS II AND III
                   NOVEMBER 21 AND DECEMBER 4, 1968
                                  by
                      Environmental Surveillance
               Western Environmental Research Laboratory*

                    ENVIRONMENTAL PROTECTION AGENCY
                       Published  September 1971
           This surveillance performed under a Memorandum of
                     Understanding (No. SF 54 373)
                   for the Nevada Operations Office
                    U. S. ATOMIC ENERGY COMMISSION
*Fonnerly part of the U. S. Department of Health, Education, and Welfare,
Public Health Service, Environmental Health Service, Environmental Control
Administration, Bureau of Radiological Health.

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                               ABSTRACT

In accordance with Memorandum of Understanding SF 54 373 with the Atomic
Energy Commission", the Western Environmental Research Laboratory (WERL)
performed radiological monitoring and sampling in off-site areas after the
testing of the Pewee 1 reactor through Experimental Plans (EP's) II and
III, conducted on November 21 and December 4, respectively, at Test Cell C,
Nuclear  Ibcket Development Station.  No radioactivity was released during
Experimental Plan I.

Following EP II, airborne radioactivity was detected by aircraft, but
was not detected off-site on the ground by thermoluminescent dosimeters
(TLD's) and Geiger-Mueller (GM) survey instruments or in air, vegetation
and milk samples.

The radioactive effluent from EP III was found by aircraft and off-site
surveillance to have moved east-southeast from the test area as far as
northwestern New Mexico.  The effluent was not detected off-site by TLD's
                                                 131   132         133
or GM survey instruments; however, low levels of    I,    Te-I and    I
were detected on natural vegetation and air samples.  Air samples which
contained reactor-related radioactivity were collected in southeastern
Nevada, southern Utah, southwestern Colorado, northern Arizona, and
northwestern New Mexico.  Emissions from reactor pulse-cool-down operations
and possibly portions of the main reactor cloud transported south by the
evening drainage winds were also detected by air samplers located in
southeastern California and Nevada.  The maximum calculated thyroid dose
from the inhalation of airborne radioiodine, based on air sampling results,
occurred at Las Vegas, Nevada, where the postulated child thyroid dose
was less than one mrad.

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                               PREFACE

In accordance with Memorandum of Understanding SF-54-373, the
Western Environmental ^search Laboratory (WERL) provides an off-site
radiological safety program for the Atomic Energy Commission in  support
of nuclear tests conducted at the Nevada Test Site (NTS) and at  the
Nuclear Rocket Development Station (NRDS), which lies adjacent to NTS.
In this capacity WEEL is responsible for the following during reactor
tests:

      1.  Documenting the radiological situation in off-site areas
         through comprehensive environmental sampling and radiation
         monitoring.

      2.  Assuring continuous protection of public health and safety
         by determining potential and past exposures to radioactivity,
         and implementing protective measures as directed by the Test
         Manager, AEC.

     3.  Conducting a public contact and information program in  the
         off-site area to assure local residents that all reasonable
         safeguards are being employed to protect public health  and
         property from radiation hazards.

     4.  Collecting information regarding incidents which may be
         attributed to radioactive releases to the off-site area.

The off-site areas are those outside the boundaries of NTS, NRDS,
the Tonopah Test Range,  and the Nell is Air Force Range, which together
are identified  in this  report as the Test Range Complex.
                                   11

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                           TABLE OF CONTENTS
                                                                 Page No.
ABSTRACT                                                            i
PREFACE                                                             ii
LIST OF FIGURES & TABLES                                            iv
INTRODUCTION                                                        1
PROCEDURES                                                          2
EP II RESULTS                                                       4
     Ground Monitoring                                              4
     Air Sampling                                                   4
     Environmental Sampling                                         4
EP III RESULTS                                                      7
     Ground Monitoring                                              7
     Air Sampling                                                   7
     Environmental Sampling                                         10
CONCLUSIONS                                                         12
APPENDIX A.  Equipment and Analytical Techniques                    13
APPENDIX B.  Calculations of Thyroid Dose                           20
APPENDIX C.  EP III - Positive Air Sampling Results                 23
DISTRIBUTION
                                  111

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                            LIST OF FIGURES
                                                                        Page No.
Figure 1.  EP II Ground Monitoring and Environmental Sampling Locations    5
Figure 2.  EP III Ground Monitoring Locations                              8
Figure 3.  EP III Air Sampling Locations                                   9
Figure 4.  EP III Environmental Sampling Locations                         11
Figure 5.  Permanent Gamma Exposure-rate Recorder Locations                14
Figure 6.  Film Badge and Thermoluminescent Dosimeter (TLD) Network        16
Figure 7.  Air Surveillance Network Locations                              17
                            LIST OF TABLES
Table 1.    Pewee 1 Test Series - 1968

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                              INTRODUCTION

The Pewee 1 nuclear reactor test series was composed of three experi-
mental plans conducted at Test Cell C,  Nuclear Rocket Development
Station  (NRDS).  Airborne radioactivity released from the execution of
Experimental Plans (EP) II and III was detected beyond the boundaries
of the' Test Range Complex.  To document the effect that these releases
had on off-site environmental levels of radioactivity, the Western
Environmental Research Laboratory (WERL) conducted radiological monitor-
ing and  sampling in off-site  areas.  This report summarizes the monitor-
and sampling techniques which were used and presents the results.  The
aerial monitoring and sampling missions of the U-3A and WERL aircraft
are reported separately, as is the special study on reactor-released
particles of high specific radioactivity.

The Pewee 1 reactor was developed and tested by the Los Alamos Scientific
Laboratory as part of Project Rover, which is administered by the Space
Nuclear  Systems Office.  The  engine was designed to operate at full
power of 500 Mw to test fuel  elements at the high temperatures and
hydrogen coolant velocities of larger reactors which can be used for
rocket vehicle application.   The nozzle of the Pewee reactor was directed
upward ejecting the radioactive effluent to several thousands of feet
above the ground.  Table 1 lists the date, time, and integrated power
for each experimental plan (information obtained from Los Alamos Scientific
Laboratory).
                  Table 1.  Pewee 1 Test Series - 1968


EP
I
II
III


Date
Nov 15
Nov 21
Dec 4

Time
(PST)
1054 -
1358 -
1332 -



1750
1415
1435
Peak
Power
(Mw)
^ io"3
^500
^500


Integrated Power

*
2.47
1.47
(Mw- sec)

x IO5
x IO6
  Reactor only critical for neutronic instrument calibration and flow tests.

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                            PROCEDURES
Prior to a reactor test at the NRDS, mobile monitoring personnel
(monitors) are positioned at populated locations and on existing
highways crossing the predicted effluent trajectory to measure radiation
levels and collect environmental samples should airborne radioactivity be
released.  The monitors are equipped with radiation survey instruments,
gamma-rate recorders, thermoluminescent dosimeters, portable air samplers,
and supplies for collecting environmental samples.  All personnel are in
two-way radio contact with a control center which directs their activities.

Following a release of radioactivity, pertinent characteristics of the
effluent are determined by aerial monitoring.  A U.S.  Air Force U-3A
aircraft defines the boundaries and hot-line of the radioactive cloud,
and a WERL Turbo-Beech is used to perform cloud sampling, monitoring and
other documentative missions, as required.   All tracking data are
radioed immediately to the control center.   This information, in con-
junction with meteorological and on-site monitoring information, is used
in directing the placement of portable air samplers, portable recorders,
TLD's, and ground monitors.

Following the passage of the effluent, levels of environmental radioactivity
are documented by sampling and monitoring.   Monitors take radiation readings
in the affected areas and collect vegetation, milk, cow feed, and water
samples.   Highways crossing the effluent trajectory are also monitored by
a mobile scanner of high sensitivity for gamma radiation to measure the
boundaries of any radioactive deposition on the ground.

Further details  on equipment,  procedures,  and analysis techniques are given
in Appendix A.

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For those tests where reactors are operated near full-power, a search
is made to locate, collect, and analyze particles of high specific
radioactivity which are deposited on the ground downwind of the tests.
The results of these studies are reported separately.

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                            EP II RESULTS

 Ground Monitoring
 According  to  early trajectory information provided by  the U-3A  and
 Turbo-Beech aircraft, radioactive effluent moved south-southeast  from
 Test  Cell  C at approximately 160° azimuth, at a speed  of approximately
 5 mph.   The northern and southern edges were generally along  the  140
 and 180° azimuths, respectively.  Based on this information and weather
 predictions,  it was determined that the effluent cloud would  cross
 Highway  95 between Lathrop Wells and the Mercury turnoff.  Ten
 ground monitors equipped with survey instruments and gamma exposure-
 rate  recorders were stationed along Highway 95 from 10 miles west of
 Lathrop Wells, Nevada (208 , 15 miles), to Indian Springs, Nevada
 (117  , 38 miles).  Ten exposure-rate recorders were placed along
 Highway 95 at 5-mile intervals from 10 miles west of Lathrop Wells to
 40 miles east of Lathrop Wells.   Each recorder contained two thermo-
 luminescent dosimeters (TLD's).   The recorders located at 5 and 25
 miles east of Lathrop Wells failed to operate.   However, the TLD's
 at these locations, as well as the eight other recorders and their
 TLD's, detected no exposures above background.   Ground monitors observed
 no exposures  above background on their survey instruments.   The locations
 of the ground monitors and/or recorders are shown in Figure 1.

 Air Sampling
 In addition to the routinely operated Air Surveillance Network  (ASN)
 stations,  four portable air samplers were placed at 10 miles west and
 10, 20,  and 30 miles east of Lathrop Wells.  The portable samplers were
 operated for  a period of two hours beginning about one and one-half
 hours after the completion of the test.  No airborne radioactivity
 related  to the reactor test was collected by any of the air samplers.

Environmental  Sampling
Environmental  sampling for  Pewee 1,  EP II,  involved the collection of
natural  vegetation and milk samples.   Vegetation samples were taken at
all  but  two exposure-rate  recorder and air sampler locations.   Additional

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                                         TEST CELL C
                           LATHROP WELLS
                                     (recorder failure)
 • BACKGROUND READING WITH RM-11

 D BACKGROUND READING, PORTABLE RECORDERS

 - NEGATIVE VEGETATION  RESULTS

•JT NEGATIVE MILK  RESULTS
      *


' SHOSHONE
                          MERCURY

                            (recorder fa ilure)
                                                                                                INDIAN
                                                                                                SPRINGS
                                                                       PAHRUMP
     Figure 1.   EP II  Ground  Monitoring  and  Environmental Sampling  Locations

                                                  5

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vegetation samples and three milk samples were collected in California
and Nevada.   None of the environmental samples contained any reactor-
related radioactivity.  Sampling locations are shown in Figure 1.

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                            EP III RESULTS

Ground Monitoring
According to early trajectory information provided by the U-3A and
Turbo-Beech aircraft, radioactive effluent moved east-southeast from
Test Cell C at approximately 110° azimuth and at a speed of approximately
10 mph.  The northern and southern edges were generally along the 90
and 120° azimuths, respectively.  Based on this information and weather
predictions, it was determined that the effluent cloud would pass between
the junction of Highways 93 and 7 and Las Vegas, Nevada.  Ground monitors
equipped with survey instruments and gamma exposure-rate recorders were
deployed to various locations in this general trajectory.  Each recorder
contained two TLD's.  No positive results were obtained  from the TLD's,
recorders, or survey instruments.  Locations of ground monitors, portable
recorders, and permanent RM-11 stations are shown in Figure 2.

Air Sampling
To supplement the routinely operated ASN Stations, eight temporary air samplers
were operated at off-site locations which were expected to contact the
effluent from the test or from pulse-cool-down operations.   Five samplers
were operated within the Amargosa Farm Area southwest of Lathrop Wells and
three samplers were used at Cactus Springs, Butler Ranch (an abandoned
ranch 32 miles south of Alamo, Highway 93), and Apex Junction (Jet. Highways
93 and 15).  Figure 3 shows the locations of the ASN and portable air
sampling stations which were positive for the reactor effluent.  As indicated
by this figure, the reactor effluent traveled to the east-southeast where
it was detected in air samples collected in  southern Utah, northern Arizona,
southwestern Colorado, and northwestern New Mexico.  Emissions from reactor
pulse-cool-down operations and possibly portions of the main reactor cloud
1A process of removing reactor decay heat by periodic pulses of liquid or
 gaseous hydrogen.  For this test, pulses of coolant were required until
 4.7 days after shutdown.   (Information obtained from Los Alamos Scientific
 Laboratory)

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                  WARM SPRINGS
                                   FALLINI'S RANCH
NYALA

••
                      CLARK STATION
     TONOPAH
                                   DIABLO
                                                                          ALAMO
                                   TESr CELL C
                              LATHROP WELLS
                                                         ,1	
                                                          INDIAN SPRINGS
                 DEATH VALLEY
                      JCT.
                                         CACTUS SPRINGS
                                              PAHRUMP
                                                             LAS VEGAS
                                  SHOSHONE
A BACKGROUND READINGS ON GM SURVEY

   INSTRUMENTS AND/OR PORTABLE RECORDERS

  BACKGROUND READING ON PERMANENT

   RM-11  RECORDERS
                                                                                                  PIOCHE
                                                                                               CALIENTE
                                                                                                   MESQUITE|
                                      MOAPA

                                         X
                                          GLEN DALE
                                                                                      I

                                                                                      \
                    Figure  2.   EP  III Ground Monitoring  Locations

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                      a
                 D

                 a
            Qa    Son
          a    DD
              n  CALIENTE D
\  °  a
 \  TEST CELL C
                                 D
                                  a
           AMARGOSA
LONE PINE m FARM  AREA
       DEATH VALLEY JCT

              SHOSHONE


 RIDGECREST B
          LA™DWAENLLS "WARM SPRINGS RANCH
             uainLMAN  _. -ppy i/~T
              SPRINGS  flf^tA JOT'

          VAHRUMP" LAs VEGAS
                                                     SELIGMAN
            SCALE IN MILES


• MILFORD
• PAROWAN
•
ENTERPRISE
a

                                                                                   I MONTICELLO

                                                                                   1
                                                                        WINSLOW
                                                                                              DURANGO
                                                                                         ALBUQUERQUE
      POSITIVE AIR SAMPLING RESULTS


      NEGATIVE AIR SAMPLING RESULTS
                         Figure 3.    EP  III Air Sampling Locations

                                                    9

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transported south by the evening drainage winds were also detected by
air samplers located in Nevada and California,  south and southwest of
Test Cell C.

All positive air sampling results are shown in  Appendix C.  The radio-
                                                                131
isotopes identified in the samples were various combinations of    I,
132Te-I, 133I and 141Ce.  From these results the maximum exposure to
airborne radioiodine occurred at Las Vegas, Nevada.   The child-thyroid
dose which corresponds to the concentrations at this location was esti-
mated to be less than one mrad by the method given in Appendix B.

 Environmental  Sampling
 Positive samples  of  natural vegetation were collected  along Highway  95
 between Cactus  Springs  and Las Vegas and  along Highway  93  and  15  and a
 point 30 miles  south of  Alamo.   Isotopic  analyses on these samples
 indicated the  presence  of     I,     Te-I,  and     I in various combinations.
 Milk, cow feed,  and  water samples  collected after the  test over  two  con-
 secutive days  at  Moapa,  Mesquite,  Las Vegas, and the Amargosa  Farm Area
 near Lathrop Wells all yielded negative results  for reactor-related
 radioactivity.  Environmental sampling locations are shown in  Figure 4.
 Positive or negative designations  indicate the presence or absence of
 reactor-related activity in the  corresponding samples.
                                10

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                DEATH VALLEY
                    JCT.
                                           PAHRUMP
                                                         LAS VEGAS
                                SHOSHONE
                                                                                           MESQUITE
                                                                                      GLEN DALE
     10     20    30    40    50

         -W"-'V—
          Scale in Miles
• POSITIVE VEGETATION RESULTS



D NEGATIVE VEGETATION RESULTS



 NEGATIVE MILK, FEED AND WATER RESULTS
                   Figure  4.   EP  III Environmental  Sampling  Locations

                                              11

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                            CONCLUSIONS

Although detected over the test site by the cloud tracking aircraft,
the activity of the Pewee 1,  EP II., effluent was below detectable
limits at ground level in the off-site area.  Aerial monitoring results
indicated that the maximum activity was 0.4 mR/h  at 6600 feet above
the ground at 15 miles from Test Cell C.   This high rise of the effluent
together with the low levels  of radioactivity at this altitude explain
why the effluent was not detectable on the ground.

As in EP II, the high rise of the EP III effluent resulted in no radio-
activity in the off-site area that could be detected by survey instru-
ments and dosimeters on the ground.  However, activity was found on
natural vegetation and air samples.  The estimated maximum child-thyroid
dose from inhalation was less than one mrad.  This dose was calculated
from air sampling results at  Las Vegas, Nevada,  and is well below the
guidelines set by the Atomic  Energy Commission Manual, Chapter 0524,
"Standards for Radiation Protection."
                                   12

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                            APPENDIX A
                Equipment and Analytical Techniques
Survey Instruments
The aircraft and ground monitors are equipped with Geiger-Mueller,
gamma scintillation, and ionization chamber survey instruments.  The
Geiger-Mueller (GM) instrument has a range of 0-200 mR/h  on four linear
scales with a range of 0-2000 mR/h  provided by an internal GM detector.
The gamma scintillation instrument, used for low-level cloud passage
measurements, has a range of 0-3 mR/h  on four linear scales.  The
ionization chamber survey instrument is used for high radiation levels.
It has a range of 0.05 to 50,000 mR/h  on two logarithmic scales.  These
                                137
instruments are calibrated with    Cs and are generally accurate to
+ 20% with regard to this calibration.  Exposure-rate readings are read
to two significant digits.

Mobile Ground  Scanner
The mobile  ground  scanner consists of  a  4-  by  4-inch Nal(Tl)  crystal
connected to a battery-powered  sealer.   The scanner  and  crystal  are placed
within a motor vehicle and  operated by  taking  one-minute counts  at pre-
selected intervals while  the vehicle moves  at  a  fixed speed  along highways
crossing the effluent  trajectory.   These data  are  then compared  with  back-
ground levels  determined  prior  to  tests  to  identify  any  deposition pattern.

Gamma-Exposure-Rate Recorders
A network of 27 continuously operated gamma-exposure-rate  recorders
(Eberline M-ll) are located around  the  Test Range Complex at  the
locations shown in Figure 5.  These  instruments measure  radiation exposure-
rates over a range of  0.01  to 100  mR/h with a  Geiger-Mueller  detector
and record the levels  on a  30-hour strip  chart.  The instrument  is accurate
to + 20% as calibrated with a    Cs  source.
                                   13

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 4-1
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Portable gamma-'exposure-rate recorders carried by monitors utilize
the same 0-2000 mR/h Geiger-Mueller survey instrument mentioned above
coupled to a battery-powered strip-chart recorder.  These recorders are
used to supplement the routine network of gamma-exposure-rate recorders
and the radiation readings taken by monitors.  The enclosure for each
recorder also contains two TLD's of the type described below.

Dosimeters
A network of film badges and thermoluminescent dosimeters (TLD's)
surrounding the Test Range Complex is operated continuously.  This
network, shown in Figure 6, consists of 106 stationary film badge
stations with 5 badges at each location.  Additionally, about 140
off-site residents are provided with one badge each.  The badges
contain Dupont Type 545 film, which is calibrated with a    Cs source.
The film has a lower detection limit of 30 mR with a reading accuracy
of + 50% from 30 mR to 100 mR and + 10% from 100 to 2000 mR for gamma
radiation above 50 keV.  In addition, 88 of the stationary stations
are each equipped with three EG&G Model TL-12 thermoluminescent dosi-
meters.  The minimum sensitivity of the TLD is approximately 1 mR.
The TLD system (TLD and reader) is capable of detecting exposures up
to 5000 R.  The TLD system is
an overall accuracy of + 10%.
                                                137
to 5000 R.  The TLD system is calibrated with a    Cs source and has
Following nuclear tests which release airborne radioactivity, additional
TLD's are placed at intervals along highways crossing the effluent tra-
jectory and at populated locations to supplement the monitoring coverage
of the routine dosimetry network.

Air Samples
The routine network of 103 permanent air samplers of the Air Surveillance
Network (ASN) is used for measuring concentrations of airborne radio-
activity on a daily basis.  These samplers  (Figure 7) operate at about 10 cfm,
                                    15

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  D 5 FB STATION
  • 3 TLD AND 5 FB STATION
Figure 6.   Film Badge and  Thermoluminescent Dosimeter  (TLD) Network
                                 16

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    M SPRINGS®--^     ^

                      \~f^
mONOP

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collecting airborne particles on 4-inch diameter glass-fiber filters.
Twenty-two of the samplers at stations next to the Test Range Complex
each operate routinely with a 4-inch diameter charcoal cartridge  follow-
ing the particulate filter.  By telephone request, charcoal cartridges
can be placed in remaining stations and stand-by stations can be  activated.

Portable air samplers carried by field monitors supplement the ASN
stations to cover cloud passage.  These samplers also use 4-inch  diameter
glass-fiber filters and charcoal cartridges and operate at about  12 cfm.

All particulate filters are counted for gross beta radioactivity  on a
low background, thin-window, proportional counter.  Results are reported
        3              3
in pCi/m  and yCi-sec/m , extrapolated to end of collection time.  Those
particulate filters containing reactor-related radioactivity and  all
charcoal cartridges are analyzed by gamma spectrometry with a 4-  by 4-inch
Nal(Tl) crystal and multi-channel analyzer.   The concentrations of
                                              3              3
individual radioisotopes are reported in pCi/m  and yCi-sec/m , extra-
polated to end of collection.  For gross beta and radioiodine radio-
                            3
activity collected from 300m  of air the minimum detectable activity
(MDA) is 0.1 pCi/m  for counting times of 2 minutes,  and 10 minutes,
respectively.
Vegetation Samples
Following cloud passage, samples of natural vegetation are collected
along highways and at populated locations to augment or substantiate
other evidence of the radioactive deposition pattern.  The samples are
counted for gross gamma radioactivity and are qualitatively analyzed
by gamma spectrometry to determine whether or not they contain test-
related radioactivity.

Samples of cow feed are collected at all milk sampling locations and
                                   18

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are analyzed by gamma spectrometry.  The concentrations of individual
radioisotopes identified in the samples ace reported in pCi/kg if
greater than the MDA of 50 pCi/kg for a 10-minute count and sample
weight of 1 kg.

Milk Samples
One-gallon milk samples are collected from dairy farms and family milk
cows located within the cloud path.  Samples of 3.5 liters are analyzed
by gamma spectrometry techniques.  The lower limit of detection for
131      133
   I and    I is about 20 pCi/1 for a 20-minute counting time.  Samples
containing test-related radioactivity are also analyzed by radiochemistry
techniques fo:
respectively.
               89       90
techniques for   Sr and   Sr, which have MDA's of 5 pCi/1 and 2 pCi/1,
Water Samples
One-gallon water samples are collected from stock tanks and potable
water sources at milk sampling locations within the effluent trajectory.
All samples are analyzed by gamma spectrometry.  Those samples containing
test-related radioactivity are also analyzed by radiochemistry methods
    89       90
for   Sr and   Sr.  The minimum detectable concentrations are the same
as those for milk.
                                      19

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                               APPENDIX B
                      Calculations of Thyroid Dose
 The dose rate to the thyroid may be described by  the  equation
      dD/dt = K E A exp -  (A   t) where:
               dD/dt = dose rate per unit time
               K     = dimensional constant
               E     = effective energy of beta and gamma  radiation,
                       MeV per disintegration
               A     = concentration of radioiodine in thyroid,
                       yCi/g
               A     = effective decay constant, I/unit time

               t     = time after deposition in thyroid

 This assumes that the radioiodine is uniformly distributed throughout  the
 thyroid and that the size of the thyroid is large compared to the range
 of the beta particles.

 The total dose is estimated by integrating the above equation from time
 zero to infinity assuming D = 0 at time zero.

             D = KEA f  exp -(A  _.t) dt
                      o         ef f
             D =  (-lAeff) KEA

             D =  0 + KEA/A
                          ef r

Dose from Inhalation of Radioiodines
                                                              131
The actual values  for the parameters in the dose equation for    I
are as follows:
             K = _ 1 rad    x      erg ___  x 3.7x10  dis x 8.64x10  sec
                 100 erg/g    6.24X1013 MeV   yCi-sec    "        day
             K  = 51. 2  rad- g- dis
                MeV-uCi-day
                                   20

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              E  =  0.23  Meva
             A =  xBf, where:
                  m
                  X -  time-integrated  concentration of  radioactivity,
                      pCi' sec/m-^

                  B =  breathing rate of standard man, 2.32 x 10~4m3/seca
                      (averaged over 24 hours)

                  f =  fraction of  inhaled  radioiodine reaching  the
                      thyroid, 0.23  (11)
                 m  =  thyroid weight  of  standard man,  20  g

                          HL!r
                          20 g
A = (2.32 x 10 4m3/sec)(Q.23)Y
              A  ff  =  0.693/(effective  half-life  for  131I)
              eft

              X     =  (0.693)/7.6  days  (a)
Substituting  these  parameters,  the  dose  equation  becomes:

              D  =  (51.2)(0.23)(2.32  x  10~4)(0.23)(7.6)x
                           (20)(0.693)

              D(rads) =  (3.45  x  10~  rads-m  )x  (yCi-sec)
                        (            uCi-sec)   (  "m3    )
                                          3
              or,    D(mrad) = (0.35 mrad-m  )x  (uCi'sec)
                               (     pCi-sec)   (m3)

 For the dose to a child's thyroid  the above equation must be multiplied by

 a factor of 3 to account for differences in thyroid weight and breathing
         3                                                      33
 rates (m /day)  between an adult and a child (3 = 20 g/2 g x 6 m /2Q m ).


For other radioiodines the dose equation changes according to differences

in effective half-life and effective decay energies.  The dose equations
    I TQ       135
for    I and    I are as follows:


 a"Recommendations of  the International Commission on Radiological

  Protection Report of Committee II on Permissible Dose for Internal

  Radiation."   ICRP-2.   Pergamon Press, New York,  London, Paris,

  Los Angeles, 1959.             21

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           Ij3i,  D(rarac) =  (0.093 mrad-m3)x
                                 \iCi' sec)

                                        3
               ,  D(mrad) =  (0.029 mrad-ni )X
                                 yCi-sec)

 In  addition  to differences  in  effective half-life and effective beta
                                          132
 particle  energies,  the dose equation  for    I  is  effected by the rapid
          100
 decay  of     I in the blood  stream before  it gets  to  the thyroid and by
 the decay of inhaled    Te  to    I.   With these effects incorporated,
                      132
 the dose  equation for    I  becomes
                             -2       3
           D(mrad) = (5.1 x  10   mrad-m  /yCi-sec)x
                                                132
 where  x is the time-integrated concentration of    Te.
a. "Protection of the Public in the Event of Radiation Accidents."
   Proceedings of a seminar sponsored by FAO/UN,  1 AEA, and World
   Health Organization on 18 November, 1963 at Geneva, Switzerland,
   1965. p. 210.

b. LeGrand, J. and Dousset, M.  "Evolution  DuDebit D'Equivalent De
   Dose Deliveree A La Glande Thyroide Agres Inhalation Instantanee
   De Tellure  132 (French)."   Health Physics  Vol. 12, No. 10
   October, 1966. p.  1407.
                                  22

-------
APPENDIX C. EP III - Positive Air Sampling Results




 (Activity Extrapolated to End of Collection Period)
LOCATION TIME
on
Azimuth Distance off
Caliente^ Nevada 0630
061 111 0800
0800
0830
0830
1000
Indian Springs^Nev 0900
117 38 0900
0900
0900
0900
0900
0900
0900
0900
0900
DATE SAMPLING
on PERIOD*
off (hours)
12/4 25.4
12/5
12/5 24.0
12/6
12/6 25.5
12/7
12/4 24.0
12/5
12/5 24.0
12/6
12/6 24.0
12/7
12/7 24.0
12/8
12/8 24.1
12/9
TIME- DATE
OF GAMMA
SCAN
9
1620
9
1637
9
1512
9
1738
9
1512
9
1658
9
0917
29
1924
11
1505
17
2215
11
1344
29
1920
17
2035
29
1935
12
1820
28
1335
COLL.
MEDIUM
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
GROSS BETA
IpCiAn^ )_
OuCi- sec/m3)
0.4
0.04


4.7
0.40


LT10.21 .



3.7
0.32


19
1.6


20
1 .7


3.4
0.29


1.4
0.12


ISOTOPIC RESULTS (pCi/m3)/(aCi-
131
I
ND

ND

0.3
0.03
ND

ND

ND

ND

ND

U8
0.16
NJD

0^9
0.08
ND

0.3
0.03
ND

0.1
0.009
ND

132 133
Te I
ND

ND

1.2
0.10
ND

ND

ND

ND

ND

_ £..2 _ _
0.77
.ND_

-1..S
0. 3?
ND

0.9
0.08
ND

0.5
0.04
ND

ND

ND

ND

ND

ND

ND

ND

ND

JSTD_
ED_
UD_
ND

ND

ND

ND

ND

135
I
ND

ND

ND

ND

ND

ND

ND

ND

_ JJD 	
-SD_
_ ML. _
ND

ND

ND

ND

ND

sec/m^)
141
Ce
ND

ND

ND

ND

ND

ND

ND

ND

_ HO-
ED

_ 1JD_
ND

ND

ND

ND

ND


-------
APPENDIX  C, EP III - Positive Air Sampling Results




(Activity Extrapolated to End of Collection Period)
LOCATION TIME
on
Azimuth Distance off
^C0ntndian Springs, Nev 0900
117 38 0900
Las Vegas, Nevada 1100
128 82 0800
0300
OSOO
0800
0800
0800
0800
Apex, Nevada 1718
Junction Hwy. 93/15
110 83 1200
Lathrop Wells, Nevada 1645
208 15 0640
0640
0640
DATE
on
off
12/9
12/10
12/4
12/5
12/5
12/6
12/6
12/9
12/9
12/10
12/4
12/5
12/3
12/5
12/5
12/6
SAMPLING TIME- DATE
PERIOD* OF GAMMA
(hours) SCAN
17
24.1 2152
17
2145
5
21.0 1121
6
2030
8
24.0 1335
10
1128
9
72.0 1041
29
2022
17
24.0 2057
10
1830
6
18.7 1315
5
1535
5
38.1 1828
5
1738
11
23.9 1505
10
COLL.
MEDIUM
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
GROSS BETA
duCi- sec/nP)
1.5
0.13


0.2
0.02


63
5.5


5.0
1.3


0.8
O.C 7


97
6.5


77
10


3.9
0.34


ISOTOPIC
131
I
ND

ND

ND

ND

2.1
0.18
1.3
0.11
0.6
0.15
ND

ND

ND

0.6
0.04
ND

0.9
0.1
0.9
0.1
0.3
0.03
ND

RESULTS
132
Te
ND

ND

ND

ND

10
0.86
ND

2.8
0.72
ND

ND

ND

5.3
0.36
ND

5.3
0.73
ND

2.0
0.17
ND

(pCi/m3)/(JuCi.sr:c/ni-3;
133
I
ND

ND

ND

ND

7.0
0.60
ND

0.4
0.1
ND

ND

ND

8.6
0.58
0.7
0.05
0.7
0.1
4.9
0.67
ND

ND

135
1
ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

CP
ND

ND
ND

ND
ND

	 ND
ND

ND

ND
"ND"""
ND

ND

ND
ND
ND
ND


-------
APPENDIX G. EP III - Positive Air Sampling Results




 (Activity Extrapolated to End of Collection Period)
LOCATION
Azimuth
Distance
(cont)
Lathrop We 11s, Nevada
208 15
Lathrop
Cop el and
208
Well s , Nevada
Ranch
26
Lathrop Well s^ Nevada
Henderson Ranch
286 25
Lathrop Wells^Nevada
Tracy Smith Ranch
297 26
Lathrop Wells.,Nevada
John Mills Ranch
219 19
TIME
on
off
0650
0915
0915
0115...
0715
0745
0745
0645
1420
1225
1445
1134
1430
1210
1407
1240
DATE SAMPLING
on PERIOD*
off (hours)
12/6 26.3
12/7
12/7 22.0
12/8
12/8 24.3
12/9
12/9 23.0
12/10
12/4 22.2
12/5
12/4 20.6
12/5
12/4 21.6
12/5
12/4 22.6
12/5
TIME- DATE
OF GAMMA
SCAN
X
X
28
1555
17
2018
28
1500
12
1820
28
1250
17
2152
17
2055
5
1825
5
1737
5
1825
5
1737
5
1841
5
1745
5
1841
5
__1724
COLL.
MEDIUM
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
GROSS BETA
_(PCi/m2 _ )_
GaCi- sec/ni3)
0.9
0.08"


2.5
0.19


0.9
0.08


0.9
0.08


82
5.8


87
6.5


86
6.7


30
2.5


ISOTOPIC
131
I
RESULTS
132
Te
(PCi/m3)
133
I
/(uCi
135
I
• sec/irP)
141
Ce
No Gamma Scan

ND

ND

ND

0.1
0.009
ND

ND

ND

2.0
0.16
1.4
0.11
2.3
0.17
1.9
0.14
0.9
0.07
0.9
0.07
0^9
0.07
0.8
0.065
,
ND

ND

ND

0.4
rO.O~3
ND

ND

ND

11
.88
ND

15
1.1
ND

8.6
0.67
ND

7.6
0.62
ND


ND

ND

ND

NTT "~

ND

ND

ND

11
.88
7.3
0.58
13
0.96
13
0.96
6.3
0.49
5.5
0.43
5.9
0.48
3.8
0.31

^JU

ND

ND

ND

ND

ftD

~"ND"

ND

ND

ND

ND

ND

ND

ND

ND

	 NTT"""

ND

--- Ni)

NTT

NTT
— W '

ND

NTT"

ND

ND

ND

ND

ND

ND

ND

-------
APPENDIX  C. EP III - Positive Air Sampling Results




(Activity Extrapolated to End of Collection Period)
LOCATION TIME
on
Azimuth Distance off
Mesquite^, Nevada 1600
091 123 0800
0800
0800
0800
0800
0800
0800
0800
0800
0800
0800
Warm Springs R§gch, 0700
OQ5 87 0700
0700
0700
DATE
on
off
12/4
12/5
12/5
12/6
12/6
12/7
12/7
12/8
12/8
12/9
12/9
12/10
12/4
12/5
12/5
12/6
SAMPLING TIME- DATE
PERIOD* OF GAMMA
(hours) SCAN
9
16.2 0917
17
2305
11
24.0 1523
17
2233
11
24.0 1415
28
1300
17
24.0 2018
X
X
12
24.0 1805
X
X
17
23.0 2133
X
X
9
24.0 0935
28
0840
11
24.0 1523
17
2330
COLL.
MEDIUM
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
GROSS BETA ISOTOPIC
>CiAn£ _ )_
(MCi-sec/nP)
LT(0.2)



1.9
0.17


9.8
0,85


4.0
0.34
4^o_G€ -rua

1.7
0.15

No CC run
1.6
0.14

No CC run
0.7
0.06


5.9
0.51


131
I
ND

ND

0.7

ND

1.7
0.06
ND

0.4
0.03 -


0.3
0.03


ND



ND '

ND

0.4
0.03
ND

RESULTS
132
Te
ND

ND

ND
0.06
ND

7.5
0.2
ND

1.0
0.09


0.9
0.08


ND



ND

ND

1.7
0.15
ND

(pCi/m3)/(Lici-scc./i.,:>)
133
I
ND

ND

ND

ND

ND

ND

ND



ND



ND



ML)

ND

ND

ND

135 141
I Cc
ND ND

ND ND

ND ND

ND ND

ND ND

ND ND

ND ND



ND 0.1
'0.009


ND ND



Ml)

ND

ND

ND


-------
APPENDIX C. EP III - Positive Air Sampling Results




 (Activity Extrapolated to End of Collection Period)
LOCATION
Azimuth
Warm Springs
(cont)
095
Pahrump }
158
TIME
on
Distance off
Ranch, Nevada 0700
87 0700
0700
-OZQIL,
0700
0700
Nevada 1000
46 0915
0915
0800
0800
0900
0900
DATE
on
off
12/6
12/7
12/7
12/8
12/9
12/9
12/4
12/6
12/6
12/7
12/7
12/8
12/8
12/9
SAMPLING TIME- DATE
PERIOD * OF GAMMA
(hours) SCAN
10
24.0 2110
28
X
24.0 X
29
1731
12
24.0 1745
28
17
24.0 2133
17
2055
X
46.5 X
10
1009
11
22.8 1400
29
1842
17
25.2 1957
28
1300
12
24.0 1805
'X
_X
COLL.
MEDIUM
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
GROSS BETA
duCi- sec/m3)
6.7
.58


1.4
0.12


1.0
0.08


3.8
0.33


0.8
0.1


3.8
0.31


2.4
0.22


0.4
0.03

No cc run
IS OT OP 1C
131
I
0.4
0.03
ND

RESULTS
132
Te
1.6
0.14
ND

(pCi/m3)
133
I
ND

ND

/0-Ci'S
135
I
ND

ND

141
Ce
ND

ND

No Gamma Scan

ND

0.3
0.03
ND

ND

ND

-
ND

0.7
0.06
ND

ND

ND


ND

ND

ND

ND

ND


ND

ND

ND

ND

ND


ND

ND

ND

ND

ND

No Gamma Scan

ND

0.4
0.03
ND

0.1
0.009
ND

ND




ND

1.0
0.08
ND

0.8
0.07
ND

0.3
0.03



ND

ND

ND

ND

ND

ND




ND

ND

ND

ND

ND

ND




ND

ND

ND
~ND
ND

ND




-------
APPENDIX C. EP III - Positive Air Sampling Results




(Activity Extrapolated to End of Collection Period)
LOCATION TIME
on
Azimuth Distance off

Pahrump^ Nevada (cont) 1000

158 46 1000

Seligman^ Arizona 0700

119 217 0700

0700

0700

0700

0700

Winslow^ Arizona 0800

112 336 1155

1200

1155

1200

1155

1200

1155
DATE
on
off

12/9

12/10

12/6

12/7

12/7

12/8

12/8

12/9

12/5

12/6

12/6

12/7

12/7

12/8

12/8

12/9
SAMPLING TIME- DATE
PERIOD * OF GAMMA
(hours) SCAN
X
23.6 X
X
X
X
24.0 X
28
1520
17
24.0 1923
X
X
X
24.0 X
X
X
8
28.0 1410
10
1300
10
24.0 2053
28
1400
17
24.0 1923
X
	 XL
17
24.0 2038
X
X
COLL.
MEDIUM
PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

GROSS BETA
Jl^siTn?
0.6
0.05






3.2
0.27


.06
0.05


LT (0 . 1)



1.9
0.16


4.8
0.41


4.4
0.38


ISOTOPIC RESULTS (pCi/m3)/Q£i. sec/n3j.
) 131 132 133 135 141
) I Te I I Ce
No Gamma Scan

No CC Run

PF not received

ND ND ND ND ND

0.3 1.2 ND ND ND
0.03 0.1
No CC run

No Gamma Scan

No CC run

ND ND ND ND ND

ND ND ND ND ND

0.1 0.5 ND ND ND
0.009 0.04
ND ND ND ND ND

0.4 2.1 ND ND ND
0.03 0.18
No CC run

ND 0.8 ND ND ND
0.007
No CC run


-------
APPENDIX  C, EP III - Positive Air Sampling Results




(Activity Extrapolated to End of Collection Period)
LOCATION TIME
on
Azimuth Distance off

Winslow, Arizona (cont) 1200

1155

Barstow, California 0700

197 140 0700

0800

£o 0800

0700

0700

0700

0700

Death Valley Jet., Calif. 0720

192 38 0700

0700

0700

Lone Pine, Calif 1300

?61 TOO 1300
DATE
on
off

12/9

12/10

12/6

12/7

12/7

12/8

12/8

12/9

12/9

12/10

12/4

12/5

12/5

12/6

12/5

12/6
SAMPLING TIME- DATE
PERIOD* OF GAMMA
(hours) SCAN
17
24.0 2133
X
X
X
24.0 X
X
X
12
24.0 1840
X
X
12
24.0 1745
X
X
17
24.2 2020
X
X
11
23.8 1630
28
1250
X
24.0 X
10
1128
X
24.0 X
X
x
COLL.
MEDIUM
PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

GROSS BETA
JjpCi/iP _ )_
(juCi'sec/niS)
1.5
"0.13"


0.2
O.D2


1.3
0.11


1.5
0.13


.8
0.07


13
1.1


2.5
272


0.2
0.02


ISOTOPIC RESULTS (pCi/m3)/(MCi- sec/m^)
131 132 133 135 141
I Te I I Ce
ND ND ND ND ND

No CC run

No Gamma Scan

No CC run

0.1 0.5 ND ND ND
0.009 0.04
No CC run

0.1 0.4 ND ND ND
0.009 0.03
No CC run

ND ND ND ND ND

No CC run

ND 0.5 ND ND ND
0.04
ND ND ND ND ND

No Gamma Scan

ND ND ND ND ND

No Gamma Scan

No CC run


-------
APPENDIX C. EP III - Positive Air Sampling Results




(Activity Extrapolated to End of Collection Period)
LOCATION TIME
on
Azimuth Distance off

Lone Pine , Calif (cont) 1300

261 100 1300

1300

1300

Needles, California 1508

146 167 1712

0713

0929

0930

0724

Ridgecrest, Calif 1218

223 113 1333

1333

1142

1145

1405
DATE
on
off

12/6

12/9

12/9

12/10

12/4

12/7

12/7

12/8

12/8

12/9

12/6

12/7

12/7

12/8

12/8

12/9
SAMPLING TIME- DATE
PERIOD * OF GAMMA
(hours) SCAN
17
72.0 2149
X
X
X
24.0 X
X
X
12
64.0 1710
X
X
17
26.2 2038
X
X
X
20.9 X
X
X
X
25.3 X
X
X
12
22.1 1840
X
X
X
26.5 X
X
X
COLL.
MEDIUM
PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

GROSS BETA
ipCi/nr' )_
(juCi* sec/nP)
1.4
0.36


1.0
0.09


1.5
.36


23
2.2


1.7
0.13


LT (0 . 2)



0.8
0.07


0.7
0.07


ISOTOPIC RESULTS
131 132
I Te
0.1 0.3
0.03 0.08
No CC run

No Gamma Scan

No CC run

0.1 0.4
0.02 0.09
No CC run

ND ND

No CC run

No Gamma Scan

No CC run

No Gamma Scan

No CC run

0.1 0.4
0.008 0.03
No CC run

No Gamma Scan

No CC run

(pCi/m3)/ (MCi- sec/m^
133 135 141
I I Ce
ND ND ND







ND ND ND



ND ND ND











ND ND ND








-------
APPENDIX C. EP III - Positive Air Sampling Results




 (Activity Extrapolated to End of Collection Period)
LOCATION TIME
on
Azimuth Distance off
Shoshone_, California 1042
178 60 0950
0952
0940
Durango^ Colorado 1731
w 086 464 1730
1731
1730
1731
.1710
1711
1730
1804
1830
Albuquerque , N. M 1500
103 552 1645
DATE
on
off
12/4
12/5
12/5
12/6
12/4
12/5
12/5
12_/6
12/6
12/7
12/7
12/8
12/8
12/9
12/4
12/5
SAMPLING
PERIOD *
(hours)
23.1
23.8
24.0
24.0
23.6
24.4
23 „ 3
25.8
TIME- DATE
OF GAMMA
SCAN
9
0918
X
X
X
X
10
1600
X
X
X
X
X
X
X
12
1710
X
X
13
1525
X
X
X
X
12
1810
8
1555
X
COLL.
MEDIUM
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
GROSS BETA
_(pCi/m3 )_
(yd- sec/m3)
2.
0.


3.
0.


_U


_6_.
0.


7.
0.


3.
0.


Q_.
0,


0.
0.


0
17


4
29


'IPJ-L



9
59


2
62


6
32


8
07


2
02


ISOTOPIC RESULTS (pCi/m3)/(MCi- sec/m3)
131
I
0.
0.
No

No

ND

No

No

0.
0,
No

0.
0.
No

0.
0.
No

No

ND

ND

No

1
008
CC

132 133 135 141
Te I I Ce
0.
0.
run

Gamma




ND

Gamma

CC

4
03
CC

5
04
CC

8
07
CC


8 ND ND ND
06
'

Scan

ND ND ND

Scan

run

0.
0,
run
2.
0.

i ND ND ND
08


0 ND ND 0.2
17
run

2.
0.
run

Gamma





_CC.

ND

ND

tun

5 ND ND ND
22


Scan

ND ND ND

ND ND ND




-------
APPENDIX C.  EP III - Positive Air Sampling Results




(Activity Extrapolated to End of Collection Period)
LOCATION TIME
on
Azimuth Distance off
(cont) lAAs
Albuquerque, N. M. -Lb'°
103 552 1530
1530
1350
1350
1725
1725
1624
Enterprise, Utah 1510
070 150 1510
1510
1510
Mil ford, Utah 1200
059 209 1200
1200
1200 _
DATE
on
off
12/5
12/6
12/6
12/7
12/7
12/8
12/8
12/9
12/4
12/5
12/5
12/6
12/4
12/5
12/5
12/6
SAMPLING
PERIOD*
(hours)
22.8
22.3
27.6
23.0
24.0
24.0
24.0
24.0
TIME- DATE
OF GAMMA
SCAN
8
1230
X
X
17
2035
X
X
17
1938
X
X
X
X
X
X.
11
1555
17
2255
17
2000
28
0920
X
X
X
X
12
1730
X
X
COLL.
MEDIUM
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
PF
CC
GROSS BETA
ipCi/m^ _ )_
(juCi- sec/ni?)
16
1.3


28
2.3


2.6
0.25


1.3
0.11


8.4
0.73


2.9
0.25


LT(0.2_)



6.1
0.53


ISOTOPIC RESULTS (pCi/m3)/( MCi • scc/r^)
131 132 133 135 1A1
I Te I I Cfc
0.8 3.3 2.5 ND ND
0.06 0.27 0.20
No CC run

1.9 7.6 ND ND ND
0.15 0.61
No CC run

ND 0.4 ND ND ND
0.04
No CC run

No Gamma Scan

No CC run

0.1 1.3 ND ND ND
0.01 0.11


ND ND ND ND ND

ND ND ND ND ND

No Gamma Scan

No CC run

0.3 1.7 ND ND 0.1
0.03 O.T5 " 0.009
No CC run


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UJ
                                      APPENDIX C0  EP  III  -  Positive  Air  Sampling Results
                                       (Activity Extrapolated to  End of Collection Period)
LOCATION
Azimuth Distance

Milford., Utah(Cont)

059 209

Monticello., Utah

079 388





Parowan_, Utah
070 202





TIME
on
off

1200

1200

1230

1230

1230

1430

1000

1000

1000

1000
DATE
on
off

12/6

12/7

12/5

12/6

12/6

12/7

12/4

12./ 5

12/5

12/6
SAMPLING
rtiKlOD"
(hours)

24.0



24.0



26.0



24.0



24.0


TIME- DATE
(jAMMA
SCAN
X
X
X
X
X
X
X
X
X
X
X
X
11
1555
X
X
X
X
X
X

CjOLLo
MEDIUM
PF

CC

PF

CC

PF

CC

PF

CC

PF

CC

GROSS BETA
(juCi- sec/m3)
0.3
0.03


3.7
0.32


2.8
0.26


13
1.2


0.2
0.02


3 ' 3
ISOTOPIC RESULTS (pCi/m )/ CuCi.sec/m )
131I 132Te 133I 135I 141Ce
No Gamma Scan

No CC run

No Gamma Scan

No CC run

0.1 0.9 ND ND ND
0.009 0.08
No CC run

0.3 0.9 ND ND ND
0.03 0.08
No CC run

No uamma scan

No CC run

       PF = Particulate Filter
       CC = Charcoal Cartridge
       LT = Less Than
       ND = Not Detected
       X  = Information not available
       * Sampling periods for permanent ASN stations are from time meter readings and not ON/OFF times recorded by
         station operators.

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                            DISTRIBUTION







 1-15  WERL,  Las  Vegas,  Nevada




     16  Robert E.  Miller,  Manager,  AEC/NVOO,  Las  Vegas,  Nevada




     17  Robert H.  Thalgott,  AEC/NVOO,  Las  Vegas,  Nevada




     18  Henry  G. Vermillion,  AEC/NVOO, Las Vegas,  Nevada




     19  Donald W.  Hendricks,  AEC/NVOO, Las Vegas,  Nevada




     20  Robert R.  Loux, AEC/NVOO, Las  Vegas,  Nevada




     21  Mail & Records, AEC/NVOO, Las  Vegas,  Nevada




     22  Technical  Library, AEC/NVOO, Las Vegas, Nevada




     23  Chief, NOB/DNA, AEC/NVOO, Las  Vegas,  Nevada




     24  Philip Allen,  ARL/NOAA,  AEC/NVOO,  Las Vegas,  Nevada




     25  Howard G.  Booth,  ARL/NOAA,  AEC/NVOO,  Las  Vegas,  Nevada




     26  M.  Klein,  SNSO, Washington, D.C.




     27  Ralph  S. Decker,  SNSO, Washington, D.C.




     28  T.  Jelinek,  SNSO-C,  Cleveland, Ohio




     29  John P. Jewett, SNSO-N,  Jackass Flats, Nevada




30 - 33  Roland M.  Nelson,  SNSO-N, NRDS, Jackass Flats, Nevada




     34  William C. King,   LLL, Mercury, Nevada




     35  Roger  E. Batzel,  LLL, Livermore, California




     36  James  E. Carothers,  LLL,  Livermore, California




     37  Ernest A.  Bryant,  LASL,  Los Alamos, New Mexico




     38  Harry  S. Jordan,  LASL, Los  Alamos, New Mexico




     39  Charles I. Browne, LASL,  Los Alamos,  New  Mexico

-------
Distribution  (continued)

     40  William E. Ogle, LASL, Los Alamos, New Mexico

     41  D. Gray, NRTO, NRDS, Jackass Flats, Nevada

     42  J. Powell, NRTO, NRDS, Jackass Flats, Nevada

     43  Eastern Environmental Radiation Laboratory,  EPA,  Montgomery,  Ala.

     44  Elmer Hemmerle, WANL, Pittsburgh, Pennsylvania

     45  G. Gallimore, Pan Am. World Airways, Jackass Flats,  Nevada

     46  Martin B. Biles, DOS, USAEC, Washington, D.C.

     47  J. Doyle, EG&G, Las Vegas, Nevada

     48  Richard S. Davidson, Battelle Memorial Institute, Columbus,  Ohio

     49  Byron F. Murphey, Sandia Laboratories, Albuquerque,  New Mexico

     50  Maj.Gen. Edward B. Ciller, DMA, USAEC, Washington, D.C.

     51  Stanley M. Greenfield, Assistant Administrator for Research  &
            Monitoring, EPA, Washington, D.C.

     52  Joseph A. Lieberman, Deputy Assistant Administrator for Radiation
            Programs, EPA, Rockville, Maryland

     53  Ernest D. Harward, Act. Dir. of Technology Assessment,  Office
            of Radiation Programs, EPA, Rockville, Maryland

54 - 55  Charles L. Weaver, Act. Dir., Div. of Surveillance & Inspection
            Office of Radiation Programs, EPA, Rockville,  Maryland

     56  Arden E. Bicker, REECo, Mercury, Nevada

     57  John M. Ward, President, Desert Research Institute,  University
            of Nevada, Reno, Nevada

58 - 59  DTIE, USAEC, Oak Ridge, Tennessee (for public availability)

-------