SWRHL-22r
OFF-SITE SURVEILLANCE ACTIVITIES OF THE
SOUTHWESTERN RADIOLOGICAL HEALTH LABORATORY
from July through December 1964
by
Southwestern Radiological Health Laboratory
Department of Health, Education, and Welfare
Public Health Service
National Center for Radiological Health
December 1968
This surveillance performed under a Memorandum of
Understanding (No. SF 54 373)
for the
U. S. ATOMIC ENERGY COMMISSION
-------
LEGAL NOTICE
This report was prepared as an account of Government sponsored
work. Neither the United States, nor the Atomic Energy Commission,
nor any person acting on behalf of the Commission:
A. makes any warranty or representation, expressed or implied,
with respect to the accuracy,, completeness, or usefulness of the in-
formation contained in this report, 01" that the use of any information,
apparatus, method, or process disclosed in this report may not in-
fringe privately owned rights; or
B. assumes any liabilities with respect to the use of, or for damages
resulting from the use of any information, apparatus, method, or pro-
cess disclosed in this report.
As used in the above, "person acting pn behalf of the Commission"
includes any employee or contractor ^>f the Commission, or employee
of such contractor, to the extent that such e-mployee or contractor of
the Commission, or employee of sucl] contractor prepares, dissemin-
ates, or provides access to, any information pursuant to his employ-
ment or contract with the Commissio^a, or his employment with such
contractor;,
012
-------
SWRHL-22r
OFF-SITE SURVEILLANCE ACTIVITIES OF THE
SOUTHWESTERN RADIOLOGICAL HEALTH LABORATORY
from July through December 1964
by
Southwestern Radiological Health Laboratory
Department of Health, Education, and Welfare
Public Health Service
National Center for Radiological Health
December 1968
This su I'veillance performed under a Memorandum of
Understanding (No. SF 54 373)
for th«
U. S. ATOMIC ENERGY COMMISSION
-------
ABSTRACT
The Southwestern Radiological Health .Laboratory of the Public.
Health Service performed off-site radiological surveillance for
fifteen announced underground nuclear detonations and four
reactor experiments during the period from July through December
1964, at t]|ie_NevadarTeTf"Site. This surveillance is conducted in
the public areas surrounding the Nevada Test Site under a
Memorandum of Understanding with the U. S. Atomic Energy
Commission. Off-site radiological surveillance was also provided
for an underground test conducted in Mississippi as part of the
Vela Uniform program.
During the six-month period, two announced nuclear events and
four reactor experiments released radioactivity which was detected
off-site. No radioactivity was released following the Project
Salmon detonation in Mississippi..
Analysis of all sampling and surveillance performed during the six-
month period indicates that the safety criteria established by the
Atomic Energy Commission for the (jiff-site population were not
exceeded.
-------
TABLE OF CONTENTS
ABSTRACT i
TABLE OF CONTENTS ii
LIST OF TABLES iii
I. INTRODUCTION 1
II. OPERATIONAL PROCEDURES 2
A. Ground Monitoring 2
B. Exposure Rate Recorders 3
C. Aerial Cloud Tracking 3
D. Aerial Sampling 3-
E. Air Sampling 4
F. Milk and Water Sampling 4
G. Vegetation Sampling 5
H. Film Badges 5
I. Public Relations 5
J. Medical and Veterinarian Services 5
K. Bioenvironmental Research 6
HI. ANALYTICAL PROCEDURES 7
IV. RESULTS 10
A. Underground tests 10
: 1. Parrot ' 10
2. Sulky 12
B. Reactor experiments 12
1. Kiwi B4E 12
a. KiwiB4EEP-V, August 28, 1964 12
b. Kiwi B4E EP-VI, September 10, 1964 14
2. NRX-A2 15
a. NRX-A2 EP-IV, September 24, 1964 15
b. NRX-A2 EP-V, October 15, 1964 17
C. Six-Months Summary 18
V. CONCLUSIONS 20
APPENDIX I - Routine Milk Sampling Results 21
APPENDIX II - Special Milk Sampling Results 31
ii
-------
LIST OF TABLES
Table 1. Threshold detectability of radionuclides in various
samples. ' • 8
Table 2. Analyses of air samples following the Parrot Event. 11
Table 3. Analyses of air samples fallowing the Kiwi B4E EP-V. 13
Table 4. Analyses of air samples fallowing the Kiwi B4E
EP-VI. 15
Table 5. Exposure rates occurring off the test range
complex on September 24, 1964. 16
Table 6. Analyses of air samples fallowing the NRX-A2
EP-IV. 17
111
-------
I. INTRODUCTION
During the period July through December 1964, fifteen announced
underground nuclear tests were conducted by the U. S. Atomic
Energy Commission at their Nevada Test Site as a part of Opera-
tion Whetstone. In addition, four reactor experiments were con-
ducted on the Nuclear Rocket Development Station. Also, the
Salmon Event of Project Dribble was conducted underground in
Mississippi. The Public Health Service carried out a program of
radiological surveillance of the public areas off-site for the
Operational Safety Division of the ARC's Nevada Operations Office
under a Memorandum of Understanding between the U. S. Atomic
Energy Commission(AEC) and the Public Health Service(PHS).
The Off-Site Radiological Safety Program of the Southwestern Radio-
logical Health Laboratory(SWRHL) conducted its program of radi-
.ological monitoring and environment;*! sampling in the off-site areas
surrounding the restricted area enclosed within the Nevada Test
Site and ttye Nellis Air Force Range. This over-all complex of the
Nevada Tqst Site (NTS) and the Nellis Air Force Range (NAFR)
includes the Nuclear Rocket Development Station(NRDS) and the
Tonopah Test Range(TTR) and for simplicity will be called the test
range complex throughout this report. Although routine sampling
and monitoring was done within a 300-mile radius around the test
range complex, surveillance was extended as necessary to provide
adequate coverage.
This report describes the methods and equipment used and summar-
izes the data collected during the sijt-month period.
1
-------
II. OPERATIONAL PROCEDURES
A. Ground monitoring
Mobile monitoring teams were deployed in the off-site area before
each event to locations most likely to be affected by a release of
radioactive material. If a release did occur, the teams conducted a
ground monitoring program directed from Control Point headquar-
ters via two-way radio communications. Ground monitoring con-
tinued until activity levels became too low to necessitate further
monitoring.
Each monitor was equipped with an E.berline E-500B, a Precision
Model 111 Standard "Scintillator", a Beckman MX-5, and a
Tracerlab AN/PDR TIB. The Eberline E-500B has a range of
0 to 200 rr.jilliroentgens per hour (mR/hr) gamma and beta-gamma
detection ||n four scales with an external halogen filled GM tube and
a 0 to 2000 mR/hr range from an internal Anton 302 tube. The
Precision Model 111 Standard "Scintillator" was used primarily for
low level detection since it provides ,1 range of 0 to 5 mR/hr in six
scales. The Beckman MX-5 instrument has a range of 0 to
20 mR/hr in three scales. It is equipped with an external Geiger
tube with a sliding beta shield. The Tracerlab AN/PDR TIB has a
range of 0. 05 to 50, 000 mR/hr in five scales. This instrument
employs an air ionization chamber detector. These instruments
are accurate to +20%, and readings can be taken to two significant
figures.
-------
B. . Exposure rate recorders
To supplement the ground monitoring program, Eberline RM-11
exposure rate recorders were utilized to document cloud passages
at fixed locations, thereby allowing mobile monitoring teams to
continue following the release as it moved through the off-site
area. These recorders utilize a Geiger tube detector and operate
on 110 V AC. They have a 0. 01 to 100 mR/hr range and are
accurate to +20%. Gamma dose rate is recorded on a 30-hour
strip chart.
C. Aerial cloud tracking
A PHS aerial monitoring team was available for each experiment.
In the event of a radioactive release, this team, equipped with
instruments identical to those used by ground monitors, tracked
the effluent. Normally an Air Force U3-A aircraft and a PHS
Aero-Commander were used in this tracking mission.
Aerial cloud tracking is essentially used to detect relative radi-
ation intensities and to indicate cloud position, speed and direction.
The information thus obtained is utilised to position ground mon-
itors to injure comprehensive ground coverage and subsequently
better surveillance.
D. Aerial sampling
The aerial sampling program was performed by the Engineering
Development Program of the Southwestern Radiological Health
Laboratory. The program used two C-45 aircraft for cloud sam-
pling activities. Cloud samples were collected by cryogenic,
electrostatic precipitator, and mass air sampling techniques. The
methods developed have resulted in measurements of cloud inven-
tories which have been reasonably consistent with determinations
made by other organizations and other methods.
-------
E. Air sampling
At the beginning of this six-month period the PHS was using
Staplex Air Samplers. This air sampler was a high volume, tur-
bine-type impeller powered by an electric motor. The sampler
was equipped with a special sampling head designed to accom-
modate a Gelman type E, 8- by 10-inch glass fiber filter and an MSA*
activated charcoal cartridge. By December 1964 all Staplex Sam-
plers were replaced by Gelman "Tempest" Air Samplers. The
"Tempest" Air Sampler employs a Cast Model 1550 vacuum pump
driven by a General Electric 1/2 hor.sepower motor. The pump runs
at 1440 rpm with an average flow ratp of approximately 10 cfm.
The sampler is equipped to use a 4-nnch diameter Whatman 541 filter
paper and an MSA charcoal cartridge. The total volume of air
sampled ii? calculated from an average vacuum reading (which in
turn indicates the average flow rate) and the total time of sampling.
The network of air sampling stations is shown in Figure 1.
F. Milk and -water sampling
The previously established milk sampling program from both com-
mercial dairies and private producers continued throughout the
six-month period. Forty-two sources were routinely sampled
during this period, most on a monthly basis. A total of 201 samples
was collected from these locations. In the event of cloud passage
over a specific area, intensified sampling within the area was con-
ducted to document changes in activity.
Water samples were collected on a routine basis, unless circum-
stances dictated specific source sampling. Both potable and
nonpotable water supplies were sampled. During -this period 136
water samples were collected from 217 sources. Most of these
sources are sampled on a monthly basis.
4
*Mine Safety Appliance Co.
-------
—s )
'A; /
: iDAun
.NO I
n. .1™»« CA^g^-
^^^~ ***^M WP.LMHlu'/VlA r
|AM.B,,LO »^oe"<5 \
•=1 e :
I ^.. i
«
-------
G. Vegetation sampling
Normally, vegetation samples were collected only in the event of a
release of radioactive material. The analytical results of these
samples were used to delineate the fallout pattern.
H. Film badges
Approximately two hundred residents in the off-site area wore film
badge dosimeters throughout this period. These film badges were
changed each month and were processed by the Radiological Safety
Department of Reynolds Electrical and Engineering Company, .Inc.
Approximately seventy-five station badges were also utilized to
provide more complete coverage. Tjfie badge used is made up of
Du Pont type 555 film. Dose, as determined from this film, is
accurate to +50% in the 30 to 100 mR range and +_10% in the 100 to
2000 mR range.
I. Public relations
Frequent contacts with the off-site population, schools and civic
groups provided the opportunity to explain the role of the Public
Health Service with respect to the programs of the Atomic Energy
Commission. As a result of favorable public relations, a number
of off-site residents took part in the ipnvironmental sampling
program; (fill routine sampling stations except Las'Vegas were
operated b,,y local citizens, and many people volunteered to wear
film badge dosimeters.
J. Medical and veterinarian services
A Public Health Service Medical Officer was available on short
notice in tliie event any cases of a medical nature arose as a result
of the test series. No such cases were brought to the attention of
the PHS.
5
-------
An Army Veterinarian assigned to the NVOO, AEC, was available
to the Public Health Service Off-Site Radiological Safety Program.
Veterinarian services were also provided by a PHS Veterinarian.
Liaison w,a.s maintained with livestock producers in the area and
the program of wildlife and cattle investigation was continued.
Semi-annual slaughter of cattle from the NTS herd and the Knoll
Creek and Delamar Valley herds was accomplished in cooperation
with the University of Nevada. Specimens from these animals
were analyzed for radionuclide content.
K. Bioenvironmental research
Another program of the Southwesterly, Radiological Health Lab-
oratory is bioenvironmental research. The mission of this
program is, in part, to investigate the inter-relationships among
the levels of radionuclide contamination of air, soil, water,
vegetation'and milk.
-------
in. ANALYTICAL PROCEDURES
All air sample prefilters and charcoal cartridges were returned
to the Southwestern Radiological Health Laboratory in Las Vegas
for radiological analyses. All 8- by 10-inch glass fiber filters were
counted for gross beta activity in a thin window, large area pro-
portional probe connected to a high speed sealer. This system
has an efficiency of approximately 30% for 1. 5 Mev betas and back-
ground for the system is approximately 600 cpm. The 4-inch prefilters
were counted for gross beta activity in a Beckman "Wide Beta" low
background(6 + 1 cpm beta) proportional system which has an efficiency
of approximately 45% for 0. 54 Mev betas. After an initial count, if
no significant activity was detected, the prefilters were counted at
5 and 12 days after collection. In all other cases, prefilters were
recounted.a minimum of three times in the first 48 hours following
collectiont, The computational procedure employed depends upon the
assumption that a decay constant can be determined for each individual
sample and that this constant can theiti be used to extrapolate the
activity to the end of the collection period.
Each prefilter selected and all charcoal cartridges were analyzed
for gamma isotopes by placing them tiirectly on a 4- by 4-inch Nal(Tl)
i'c
crystal coupled to a TMC"Model 404C gamma pulse height analyzer
viewing energies from 0 to 2 Mev.
Detection capability of the system as shown in Table 1 is an em-
pirical esumate obtained from previous data collected under the
following conditions:
a. Count time in days after fissioning as indicated by
footnotes.
b. Prefilters collect unfractionated fission products re-
sulting in a complex spectrum.
c. MSA charcoal collects gaseoias fission products only
(primarily iodines).
7
*Technical Measurements Corporation
-------
d. An eight isotope matrix is employed for computation
and isotopes other than those examined are present
in amounts which are small relative to those eight.
e. Natural activity on air samples is approximately
five times system background.
Table 1. Threshold detectability of radionuclides in various samples
(90% confidence level).
Detectability at time
Sample Type
Whatman No. 541
(pCi)
MSA Charcoal
(pCi)
1 3lj
500
200
200
100
132Te-I
1000
-
400
-
I33j
500
200
200
100
135I
1000
-
400
-
of count
140Ba-
La
500
200
200
100
Length
of count
10 min
10 min
10 min
10 min
Notes
1
2
1
2
20
20
40-50 20-30 40-50
20-30
20
20
40 min
40 min
3. 5 liter water*
(pCi/1)
3. 5 liter milk*
(pCi/1)
*Counted in 3.5 liter inverted w'ell(Marinelli) aluminum beakers.
1 - counted at less than 3 days after jformation.
2 - counted at 3 days or more after formation.
3 - with 137Cs=100 pCi.
4 - assuming insignificant amounts of other nuclides, and all given isotopes
at about detection limits to approximately 10 times the lower limit.
Although the minimum detectable levels for water samples involve
the limitations listed in (d) and (e) above, the situation is usually
simplified by having no background other than that of the system.
For a sample containing all of the isotopes of iodine, the error
term on threshold values at the 95% confidence level is approxi-
mately eqial to ±50%.
Biological discrimination will limit the number of isotopes present
in a milk sample to relatively few. Pnder normal sampling pro-
cedures, this discrimination coupled with the short physical half
8
-------
life will tend to eliminate l 32I and '* 3 5I from the sample by the time
it is counted. At the 95% confidence level reported values for milk
are +. 10 pCi/1 or 10% at the time of count whichever is greater for
a 40 minute count.
After any release of activity from the NTS, milk samples are col-
lected from dairies (processing plants), producing dairy farms,
and farms producing milk for their own consumption. Each sample
is counted for 50 minutes. No attempt is made to recount samples
giving low positive values. The lowe^r limit of detection for gamma
emitters in milk samples is 20 picocuries per liter (pCi/1) at the
time of count, and all results below 1;hat value are reported as
not detectable.
All liquid samples are counted in 3. 5 liter inverted well aluminum
beakers which are placed on top of ii 4- by 4-inch Nal crystal coupled
to a 400-channel gamma pulse height analyzer. Overall detection
efficiency for the 0. 364 Mev photope^k of 131I is 6.4%. A matrix
technique is employed to compute th^i interference due to the pres-
ence of other isotopes. The input to this matrix is variable,
allowing for the simultaneous determination of any eight nuclides
for which detection efficiencies and interference factors have been
obtained. Actual computation is performed by an IBM 1620 com-
puter.
Water samples are analyzed for grosis beta activity by slowly evap-
orating ar, aliquot to dryness in a 2-inch diameter stainless steel plan-
chet and counting the beta activity in a low background counter.
-------
IV. RESULTS
A. Underground tests
Two of the fifteen detonations at the Nevada Test Site resulted in
releases of radioactive effluent which was detected in off-site popu-
lated areas. These were the Parrot Event, conducted on De-
cember 16, 1964 and the Sulky Event, a Plowshare experiment
conducted on December 18, 1964. As mentioned previously, the
Salmon Event, conducted in Mississippi on October 22, 1964, did
not result in a release of radioactivity.
1. Parrot
The Parrot Event resulted in a small release of radioactivity
which light winds carried to the north of the test site. • Sub-
seque^it nighttime drainage windg carried the remaining
effluent to the south.
The only locations at which ground monitors detected levels of
radioactivity above background were in an unpopulated area
along Highway 25. The peak expqisure rate was measured at
1600 lijours 6. 3 miles northwest of Coyote Summit. The
time interval in which exposure jfates greater than background
existed was from 1600 to 1630 hqiurs. The net peak exposure
rate measured was 0. 14 mR/hr.
Two air samples collected off-site on the two days following
the Parrot Event contained fresh fission products. Several
other samples collected showed {;ross beta concentrations
above normal background. The results of the analyses of
these samples are shown in TabLe 2.
10
-------
Table 2. Analyses of air samples following the Parrot Event.
Air
Location Volume
(m3)
12 miles NW of
Hancock Summit*
Hiko Junction, ,
Nevada*
Indian Springs,
Nevada
Mesquite, ,,.
Nevada
Panaca, ,
St. George, _._
Utah
Warm Springs 3
Ranch, Nevada
Date -
Time On
12/16-
1523
12/16-
1748
12/16-
0835
12/16-
1000
12/16-
. 13.30
12/16-
1810
12/16-
0800
_ _ , Gross Beta Gamma Pulse Height
Date - Col- _ . &
rn- ^rr i ^ Count Activity Analysis Activity
Time Off lector 3 * / . 3 '
(pCi/m ) (pCi/m )
131 j I33j 135 j
12/16-
1540
12/16-
1948
12/17-
0645
12/17-
0500
12/17-
12/17-
0835
12/17-
0610
P 74
C
P 60
C
P .47
C
P 22
C
P 23
r
P 36
C
P 8.5
C
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NOT
0.6
ND
ND
ND
ND
ND
6.6
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
.ND
ND
ND
ANALYZED
0.6 ND
*Unpopulated locations
P - Prefilter
C - Charcoal cartridge
ND - Not detectable
Note: This table includes only those air samples containing fresh
fission products or gross beta concentrations above normal
background fluctuations. Results are corrected to the end of
the collection period.
-------
Milk, water and vegetation samples collected following this event
did not show the presence of fresh fission products when analyzed.
2. Sulky
Project. Sulky was conducted at the Nevada Test Site on Decem-
ber 18, 1964, at 1135 hours. The test was a Plowshare crater-
ing experiment.
The only indications of radioactivity off the test range complex
were gamma exposure rate measurements taken by ground
monitors and RM-11 exposure ratjp recorders. The maximum
gamma exposure rate measured by recorder instruments was
0. 06 mR/hr at Nyala, Nevada during the period 1505 to 1800 hours
on December 18. The maximum external exposure at any mon-
itored station, including Nyala, did not exceed 0. 1 mR.
The environmental samples (milk, water and vegetation) collected
following Sulky contained no fresh fission products.
B. Reactor experiments
1. Kiwi B4E
On August 28 and September 10, 1964, the Kiwi B4E reactor was
tested at Test Cell C, located at the Nuclear Rocket Development
Station,, Jackass Flats, Nevada. Each test was conducted at
design power and the reactor was operated in an upright position
so that the hydrogen coolant exhausted upward along with
escaping fissipn_products.
a. Kiwi B4E EPV, August 28, 1964
On August 28, the Kiwi B4E reactor was tested under the
conditions known as Experimental Plan V (EPV). The reac-
tor was operated at design power from 1239 to 1247 hours
12
-------
PDT. Low levels of radioactivity were detected off the test
range complex. The only locations at which ground monitors
detected exposure rates above background were Coyote
Summit (0. 17 mR/hr) and Goss1 Ranch (0. 18 mR/hr); Coyote
Summit is uninhabited and Goss1 Ranch had a population of
two adults and three children during the surveillance period.
Several air samples obtained on the test day contained fresh
fission products. The results ipf analyses of the prefilters
and charcoal cartridges are presented in Table 3.
Table 3. Analyses of air samples following the Kiwi B4E EP-V.
L°Catl0n
_. _ _. _
Time-Date Time-Date
OnHrsPDT Off Hrs PDT
Vol- Prefilter Gamma Pulse Ht.
(m •*) Beta
(pCi/m3)
/
(pCi/m
132j I33j 135j
°SS , 1400,
Ranch
Pioche 1840,
Hiko 1445,
Blue Jay Q
Maint. Stn.
8/28
8/28
8/28
8/28
1600, 8/28 85 22.0
1200, 8/29 707 <1
0900, 8/29 776 <1
0700, 8/29
P
C
P
C
P
C
C
3 10
10 1000
ND
ND
ND
ND
< 1
ND
ND
ND
ND
ND
42 <1
100 500
<1 ND
<1 ND
<1 ND
<1 ND
ND ND
P - Prefilter
C - Charcoal cartridge
ND - Not detectable
Note: This table includes only those air sam-
ples containing fresh fission products.
Re-.sults are corrected to the end of
collection.
Air samples taken on August 28 at Alamo, Sunnyside,
Currant, Lund, and Ely, Nevada and Garrison, Utah, did
not contain fresh fission products when analyzed.
13
-------
A milk sample obtained on August 30 from Donahue's Ranch,
located 25 miles north of Ursine, Nevada, indicated the pres-
ence of 131I at a level of 20 pCi/1 - the threshold of detect-
ability for this isotope. Milk samples obtained from 21 other
ranches and four producer dairies did not contain fresh
fission products in detectable quantities. (See Appendix).
A nonpotable water sample taken from a pond at Fillmore,
Utah on August 31 indicated 20 pCi/1 of 131I. Six additional
samples from other locations in Nevada and Utah did not
contain fresh fission products when analyzed.
b. Kiwi B4E EP-VI, September 10, 1964
The Kiwi B4E~reactor was tested under the conditions known
as Experimental Plan VI (EP-V}) on September 10, 1964 with
the reactor tested in an upright position. The test was a
nominal two-minute run at desigp power and commenced at
1155 PDT. Gamma exposure rates above background were
not detected off the test range complex with portable moni-
toring instruments, although monitors were in the path of
r>
the cjloud as determined by aerii^l monitoring and environ-
mental sampling.
air samples collected on the test day contained fresh
fission products and the results are presented in Table 4.
Othei' air samples taken on September 10 at Pioche, Alamo,
Ely, Sunnyside, and Currant, Nevada, and Garrison, Utah
did not contain detectable quantifies of fresh fission products.
Only milk samples from Schofield Dairy Farm at Hiko,
Nevada indicated fresh fission products in detectable quan-
tities. A sample collected onSeptember 12 contained 30 pCi/]
14
-------
of * 31I and a sample collected the following day contained
40 pCi/1 of ' 31I. Results oi analysis of all milk samples
collected are shown in the Appendix.
Table 4. Analyses of air samples following the
Kiwi B4E EP-'VI.
V ol -
_ . . Time -Date Time -Date
Location QnHrs pDT QffHrsPDT ^
°°SS' 1500,9-10 1745,9-10 119
Ranch
Hiko 0810,9-10 0815,9-11 900
Caliente 0920,9-10 0800, 9-11 963
Prefilter
Gross
Beta
(pCi/m3)
445 ^
P
19 c
P
C
Gamma Pulse Ht.
Analysis(pCi/m3
131 £ I32j 133j 135j
7.
0.
n.
0.
0.
0
8
-^
2
1
ND
ND
ND
ND
ND
1 5
ND
3.
3.
2
0.
1
0
0
n
5
n
ND
28
ND
ND
ND
ND
ND
P - Prefilter Note: This table includes only those air sam-
C - Charcoal cartridge pies containing fresh fission products.
ND - Not detectable Results are corrected to the end of
collection.
2. NRX-A2
On September 24 and October 15, 1964, the NRX-A2 reactor ex-
periments were conducted at Test Cell A at the Nuclear Rocket
Development Station.
a. NRX-A2EPIV, September 24, 1964
On September 24, the reactor was tested under the condi-
tions known as Experimental Plan IV (EPIV) and was oper-
av.ed at design power from 1(155 to 1105 PDT. The reactor
was tested in an upright position so that the hydrogen coolant
exhausted upward along with escaping fission products.
Gamma exposure rates above background were detected in the
vicinity of Lathrop Wells, oi'i Highway 95, and at Dansby's
Ranch located 10 miles south.west of Lathrop Wells. {See
Table 5) Lathrop Wells has a population of about fifty people.
15
-------
Monitoring at these places on the day folio-wing the teat pro-
duced only background readings. Monitors were also called
upon to check the off-site area during the night following
the test when activity was detected on the NRDS. Readings
above background were found off the test range complex for
five miles along Highway 95 starting nine miles northwest
of Lathrop Wells. The maximum reading of 0. 12 mR /hr
was found 9. 8 miles NW of Lathrop Wells at approximately
0100 hours on September 25,,
Table 5. Exposure rates occurring off the test range complex
on.Seotember 24, 1964.
Time of Peak Time of Exp.# Net Peak
Location *Exp. Rate Rates greater Exp.# Rate
(PDT) than Background (mR/hr)
Lathrop Wells
Dansby's Ranch
Hwy.95 (4. 5 mi.NW
of Lathrop Wells)
1234
1320
1220
1215-1500 0:43
1250-1450 0.07
1240-1330 0.23
*Exp. = exposure
Several air samples taken following the test contained fresh
fission products. The results of analysis of the prefilters
and charcoal cartridges are presented in Table 6. Air
samples taken on September 24 at Scotty's Castle, Beatty
and Springdale showed no fresh fission products when.ana-
lyzed.
Milk samples obtained on the test day and the two following
d;iys at Dansby's Ranch indicated low levels of l 33I. Iodine-
131 was not present in detectable quantities. Six other milk
samples collected did not contain fresh fission products in
detectable quantities. (See .Appendix)
16
-------
Water samples collected on the day of the test at Dansby's
Ranch and the day after the test at the Watson and Selbach
Ranches near Lathrop Wells, Lathrop Wells Gas Station,
Furnace Greek and Stovepipe Wells did not show detectable
levels of radioactivity.
Table 6. Analyses of air samples following
the NRX-A2 EP-IV.
Location
Lathrop
Wells
Dansby
Ranch
Death
Valley
Junction
Stovepipe
Wells
Furnace
Creek
Time -Date
OnHrsPDT
0715,9-24
1500,9-24
1050,9-24
0940,9-24
1500,9-24
1045,9-24
1510,9-24
1100,9-24
1510,9-24
Time -Date
OffHrsPDT
1455,9-24
0715,9-25
1550,9-24
1500,9-24
0625,9-25
1500,9-24
1030,9-25
1500,9-24
0955,9-25
Vol-
ume
(m3)
261
553
183
211
642
181
804
146
750
Prefilter Gamma Pulse Ht
Gross Analysis (pCi/m 3
P 13
450 _ ',
\^ ^ 1
P
2- 3 r. ^
C ND
«° c
-------
the test range complex. Due to the iow exposure rates encoun-
tered by aerial monil.ors, no Around monitors were posi-
tioned off the test range Complex. ' However, ground mon-
itors located on the test range complex downwind from the
reactor encountered no readings above background.
Only one off-site air sample contained detectable quantities
of fresh fission products. The charcoal cartridge at Indian
Springs showed 150 total picocuries of 131I. This sample
was started at 1800 on the test day and the air sampler
motor failed during the night. However, if the sampler ran
for only two hours, '50 total picocuries would be less than
one picocurie per cubic meter on the filter. Although the
e.ffluent from EPV went to ttye northeast, it is believed that
northerly drainage winds carried some radioactivity to the
south during the night resulting in radioiodine being detected
av Indian Springs.
Milk samples were collected at Lund, Nevada on October 16
and at Alamo and Hiko on October 20. These samples did
not contain detectable quantifies of fresh fission products.
A water sample collected from a trough at Goss Ranch on
October 16 contained 75 pCi/1 of 133I. No 131I was detect-
able in the sample.
C. Six-months summary
The ten highest air filter results collscted during the six-month per-
iod were taken following the previously summarized events and are
listed in the tables oi air sampling results.
Samples of water collected during thi.s period from sources used for
human consumption showed no fresh fission products. Approximately
ib
-------
170 samples from potable and nonpotable sources were collected
during this time.
The only milk samples showing fresh fission products were collected
subsequent to the Kiwi B4E and NRX-A2 reactor runs. All milk
samples collected and analyzed from July through December 1964
are listed in the Appendix.
Approximately 2700 film badges weri? collected and processed from
film badge stations and badged personnel in the off-site area. No
exposures, above the 30 mR detection limit were found that could be
attributed to any one or combination of the events of this period.
19
-------
V. CONCLUSIONS
Results obtained through environmental radiation surveillance during
this period indicate that no individual in the off-site area received
an exposure, resulting from Nevada Test Site operations, which ex-
ceeded th^| guides established by the AEC and/or recommended by
the FRC and the NCR P.
-------
APPENDIX I
ROUTINE MILK SAMPLING RESULTS
Note: ND on the following pages of tables means not detectable.
-------
Appendix 1
Routine Milk Sample Results
COLLECTION DATA
ANALYTICAL DATA
Location
Alamo, Nevada
Stewarts Dairy
Stewarts Dairy
Stewarts Dairy
Stewarts Dairy
Stewarts Dairy
Caliente, Nevada
Young Ranch
Young Ranch
Young Ranch
Young Ranch
Currant, Nevada
Blue Eagle Ranch
Blue Eagle Ranch
Blue Eagle Ranch
Blue Eagle Ranch
Blue Eagle Ranch
Duckwater, Nevada
Halstead Ranch
Halstead Ranch
Halstead Ranch
Elgin, Nevada
Date
07/01/64
08/20/64
08/22/64
10/14/64
12/01/64
08/12/64
08/22/64
10/14/64
11/12/64
07/20/64
08/05/64
09/30/64
10/22/64
11/25/64
09/30/64
10/22/64
11/24/64
08/22/64
89Sr
"ND
ND
No
ND
ND
ND
5
ND
ND
5
ND
ND
ND
ND
ND
ND
ND
No
9°Sr
10.
6.
Chem.
4.
5.
10.
4.
6.
7.
12.
11.
10.
24.
19.
6.
13.
20.
Chem.
Activity
131
ND
ND
ND
ND
ND
ND
ND
ND
" ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(pCi/1)
!400 _
I Ba-La
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND.
ND
ND
ND
ND
ND
ND
!37^
Cs
70
55
55
45
35
25
25
20
125
115
85
85
150
65
95
120
20
Concentration (grn/1)
Ca
1. 15
1.22
1.11
1.09
1. 18
1.20
1. 10
1. 03
1.39
1.45
1.58
1.47
0.96
1. 15
1.34
1. 06
K
1.6
1.2
1.3
1. 5
1.7
1.4
1.4
1.6
1.9
1.4
1. 5
1. 7
1. 7
1.3
1. 7
1.6
1. 3
1.0
-------
Appendix I - continued
Routine Milk Sample Results (continued)
COLLECTION DATA
ANALYTICAL DATA
Location
Eureka, Nevada
Fish Creek Ranch
Fish Creek Ranch
Fish Creek Ranch
Fish Creek Ranch
Fish Creek Ranch
Hike, Nevada
Schofield Dairy
Schofield Dairy
Schofield Dairy
Schofield Dairy
Schofield Dairy
Sofe-field Dairy
Lathrop Wells, Nevada
Dansby Ranch
Dansby Ranch
Selbach Ranch
Selbach Ranch
Las Vegas, Nevada
Anderson Dairy
Anderson Dairy
Anderson Dairy
Anderson Dairy
Anderson Dairy
Anderson Dairy
Anderson Dairy
Anderson Dairy
Anderson Dairy
Anderson Dairy
Date
07/21/64
08/27/64
09/30/64
10/22/64
11/23/64
07/01/64
08/11/64
08/20/64
08/22/64
11/11/64
12/01/64
12/07/64
12/09/64
12/07/64
12/10/64
07/02/64
08/11/64
08/17/64
09/01/64
10/01/64
10/13/64
10/23/64
11/04/64
11/16/64
11/25/64
Activity (pCi/1)
89Sr
ND
ND
ND
ND
ND
ND
ND
ND
90_
Sr
46.
31.
7.
16.
17.
5.
4.
4.
No Chem.
ND
*JB
ND
ND
ND
ND
ND
ND
ND
ND
8.
•5.
No Chem.
No Chem.
8.
7.
9.
7.
9.
8.
6.
16.
Sample lost
ND
11.
131 140
ND
Nlj>
ND
ND,
ND\
1
ND!
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
Ba-La
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND.
ND
137Cs
175
120
75
90
155
65
40
50
45
40
60
30
15
30
30
80
55
60
30
55
15
25
60
50
45
Concentration
Ca
1.48
1.04
.94
1. 18
1.41
1. 19
1.28
1.22
1. 07
1. 31
Sour
1. 15
Sour
1. 12
1.22
1. 19
1. 15
1.20
1.23
(gm/1)
K
1.2
1.3
1.2
1.5
1. 7
1.4
1.2
1. 3
1. 3
1.4
1.4
1.6
1.4
1.4
1. 3
1.6
1. 7
1.6
1.8
1.5
1. 5
[SJ
-------
Routine Milk Sample Results (continued)
COLLECTION
Location
Las Vegas, Nevada
Arden Dairy
Arden Dairy
Arden Dairy
Arden Dairy
Arden Dairy
Arden Dairy
Arden Dairy
Arden Dairy
Arden Dairy
Arden Dairy
Las Vegas, Nevada
Bliss Doiiry
Bliss Dairy
Bliss Dairy
Bliss Dairy
Bliss Dairy
Bliss Dairy
Bliss Dairy
Bliss Dairy
Bliss Dairy
Bliss Dairy
DATA
Date
07/02/64
08/11/64
08/17/64
09/01/64
10/01/64
10/13/64
10/23/64
11/04/64
11/16/64
11/25/64
rt-? / no IJ-..A
V 1 / Vt- / VI
08/11/6
08/17/64
09/01/64
10/01/64
10/13/64
10/23/64
11/04/64
11/16/64
11/25/64
89C
Sr
ND
ND
ND
ND
ND
ND
10
ND
ND
ND
•NG
ND
ND
ND
30
ND
ND
ND
ND
ND
90_
Sr
8.
3.
5.
4.
9.
5.
5.
5.
13.
12.
iO.
6.
9.
8.
8.
10.
6.
8.
7.
7.
Activity
131
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-N-D
ND
ND
ND
ND
ND
ND
ND
ND
ND
ANALYTICAL
(pCi/1)
I Ba- La
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
•
ND
ND
ND
ND
ND v
ND
ND
ND
ND
ND
DATA
Cs
50
25
30
35
25
25
35
10
25
30
70
50
60
50
60
50
45
30
40
20
Concentration
Ca
Sour
1. 12
1.12
1. 18
1.22
1. 18
1. 18
1.20
1.20
1.22
1. 17
1. 12
1. 18
1. 01
1.25
1. 17
1. 18
1.22
1. 18
1.23
(gm/1)
K
1.7
1.4
1.2
1.3
1.6
1.2
1. 5
1.8
1.6
1. 7
1. 5
1.5
1.2
1.4
1.6
J. 3
1.6
1.4
1.5
1.3
-------
Routine Milk Sample Results (continued)
COLLECTION DATA
ANALYTICAL DATA
Location
Las Vegas,
Hiland
Hiland
Hiland
Hiland
Hiland
Hiland
Hiland
Hiland
Hiland
Hiland
Las Vegas,
Hinies
Hinies
Hinies
Hinies
Hinies
Hinies
Hinies
Hinies
Hinies
Hinies
Nevada
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Nevada
l~\at •»-*.-
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Dairy
Date
07/02/64
08/11/64
08/17/64
09/01/64
10/01/64
10/13/64
10/23/64
11/04/64
11/16/64
11/25/64
07/02/64
08/11/64
08/17/64
09/01/64
10/01/64
10/13/64
10/23/64
11/04/64
11/16/64
11/25/64
Activity (pCi/1)
89Sr
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
Too
ND
ND
ND
ND
ND
ND
ND
9°Sr
9.
6.
5.
9.
14.
8.
7.
9.
11.
9.
A=
5.
sour
2.
4.
4.
8.
7.
9.
9.
131 140
TND
ND
ND
ND
ND
ND
ND
ND
ND
ND
JND
ND
ND
ND
ND
ND
ND
ND
ND
Ba-La
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NX).
ND
ND
ND
ND
ND
ND
ND
ND
137_
Cs
60
50
60
55
70
50
30
40
50
60
50
30
25
25
60
25
40
35
40
50
Concentration
Ca
Sour
1. 10
1. 12
1.22
1.26
1.20
1.20
1.23
1.31
1.27
Sour
1. 10
1. 04 .
1.22
1. 18
1. 14
1. 18
1. 12
1.23
(gm/l)
K
1.6
1.4
1.3
1.3
1.6
1.6
1.8
1.5
1.2
1.5
1. 7
1.4
1.2
1.4
1.6
1. 5
1.5
1.0
1.6
1.4
ro
-------
Routine Milk Sample Results (continued)
COLLECTION DATA
ANALYTICAL DATA
Location
Las Vegas, Nevada
Meadow Gold Dairy
Meadow Gold Dairy
Meadow Gold Dairy
Meadow Gold Dairy
Meadow Gold Dairy
Meadow Gold Dairy
Meadow Gold Dairy
Meadow Gold Dairy
Meadow Gold Dairy
Meadow Gold Dairy
Lida, Nevada
}~>tf>vf*r>.
-------
Routine Milk Sample Re suits (continued)
COLLECTION DATA
ANALYTICAL DATA
Location
Lund, Nevada (cont1)
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
Manhattan, Nevada
Peavine Ranch
Peavine Ranch
Peavine Ranch
Peavine Ranch
Peavine Ranch
Peavine Ranch
Moapa, Nevada
Searles Dr.iry
Searles Dairy
Searles Dairy
Searles Dairy
Searles Dairy
Searles Dairy
Searles Dairy
Date
09/17/64
; 09/26/64
10/02/64
10/09/64
,10/22/64
,10/30/64
11/05/64
H/19/64
11/27/64
12/03/64
12/11/64
12/18/64
12/26/64
12/31/64
07/02/64
07/30/64
09/04/64
09/30/64
11/05/64
12/03/64
07/OJ/64
08/11/64
08/20/64
09/09/64
10/14/64
12/01/64
12/30/64
Activity (pCi/1)
89Sr 9°Sr
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
Sample
ND
ND
5
ND
ND
ND
ND
ND
10.
8.
6.
9.
7.
8.
10.
10.
10.
8.
8..
7.
10.
9.
7.
5.
8.
5.
lost.
4.
6.
5.
8.
7.
8.
15.
8.
131 140
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
Ba-La
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
137Cs
100
55
ND
65
45
45
60
65
5
60
60
50
65
75
60
55
80
55
150
35
•••
40
55
55
65
15
60
50
Concentration
Ca
1.20
1. 19
1. 16
1. 17
1. 18
1. 17
1.21
1. 17
1. 18
1. 18
1. 15
1. 10
1. 15
1. 18
1. 18
1. 03
1. 17
1.23
1. 12
1. 14
1. 18
1. 12
1. 18
.70
1. 15
(gm/l)
K
2.0
1.6
1.6
1.6
1.4
1.5
1.4
1.5
1.6
1.5
1.7
1.4
1.5
1.4
1.7
1. 1
1.5
1.7
1.9
1.2
1.4
1.5
1.5
1.7
1.6
1.5
1. 5
-------
Routine Milk Sample Results (continued)
COLLECTION DATA
ANALYTICAL DATA
Location
Nyala., Nevada
Sharp Ranch
Pahrump, Nevada
Anderson Ranch
Anderson Ranch
Anderson Ranch
Anderson Ranch
Anderson Ranch
Anderson Ranch
Pioche, Nevada
Horlachers Ranch
Horlachers Ranch
Horlachers Ranch
Horlachers Ranch
Springdale, Nevada
Peacock Ranch
Twin Springs, Nevada
Twin Springs Ranch
Joseph City, Arizona
Logansville, Arizona
Sornerton, Arizona
n ii
Taylor, Arizona
Date
10/07/64
07/30/64
08/22/64
10/01/64
10/29/64
11/06/64
12/02/64
07/01/64
08/26/64
10/14/64
11/11/64
07/30/64
10/07/64
11/05/64
08/20/64
12/11/64
12/11/64
11/05/64
Activity (pCi/1)
89Sr
ND
ND
No
ND
ND
5
ND
. ND
ND
ND
ND
ND
ND
ND
ND
No
ND
9°Sr
15.
2.
Chem.
1.
1.
4.
29.
15.
12.
15.
28.
3.
4.
9.
5.
Chem.
9.
131 140
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
Ba-La
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
137_
Cs
180
25
30
20
ND
40
155
85
35
55
60
65
55
10
ND
25
15
45
Concentration
Ca
1.22
1.31
1.23
1.25
1.20
1.38
1.47
Sour
1. 07
1.55
1.40
1. 12
1.20
1.25
1. 16
(Km/1)
K
1.3
1.3
1.3
1.6
1.8
1. 6
1.4
1. 0
1. 1
1.6
1.6
1.3
1.9
1.8
1. 7
1.4
ro
-4
-------
Routine Milk Sample Results (continued)
COLLECTION DATA
ANALYTICAL DATA
Location
Tucson, Arizona
n n
Blackfoot, Idaho
Boise, Idaho
Buhl, Idaho
Burley, Idaho
Coeur d'Alene, Idaho
Idaho Falls, Idaho
Jerome, Idaho
Lewiston, Idaho
Mountain Home, Idaho
Pocatello, Idaho
it ii
n ii
it n
Garrison, Utah
Gonders Ranch
Gonders Ranch
Gonders Ranch
Gonders Ranch
Gonders Ranch
Date
11/04/64
11/04/64-
09/15/64
09/15/64
09/15/64
09/15/64
09/15/64
09/14/64
09/15/64
09/14/64
09/15/64
09/15/64
09/16/64
09/17/64
09/18/64
08/03/64
08/25/64
09/29/64
10/21/64
11/24/64
Activity (pCi/1)
89Sr
ND
ND
5
ND
5
ND
ND
ND
ND
5
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
90
Sr
1.
4.
10.
22.
22.
28.
39.
14.
14.
17.
24.
17.
14.
16.
16.
9.
8.
4.
12.
10.
131 140
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
Ba-La
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
13?Cs
35
25
60
160
165
145
165
110
75
60
160
90
55
90
85
60
65
30
20
55
Concentration
Ca
1. 17
1.46
1. 18
1.31
1.20
1.31
.93
1. 03
1.20
1.26
1.33
1.20
1.20
1.25
1.23
1. 11
1. 12
1.24
.98
1.57
(em/1)
K
1.3
1-4
1.6
1.6
1.4
1. 7
0.9
1.2
3.8
1.4
1.3
1.6
1.6
1.7
1.6
1. 3
1. 3
1. 1
1.5
1.5
[V
00
-------
Routine Milk Sample Results (continued)
COLLECTION DATA
ANALYTICAL DATA
Location
Newcastle, Utah
Newcastle Dairy
Newcastle Dairy
Newcastle Dairy
Newcastle Dairy
St. George, Utah
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
.33 *~* —.
~X\« ~\-T^>2i,
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
Date
07/14/64
09/07/64
10/14/64
11/22/64
07/03/64
07/10/64
07/17/64
07/24/64
07/31/64
08/07/64
08/14/^4
08/20/64
08/21/64
08/28/64
09/04/64
09/11/64
09/17/64
09/24/64
10/02/64
10/09/64
10/16/64
10/22/64
10/30/64
89-
Sr
ND
ND
ND
5
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
9°Sr
12.
11.
9.
4.
9.
10.
10.
9.
9.
11.
Si
"V*.
8.
8.
7.
25.
5.
7.
6.
7.
9.
5.
7.
5.
Activity
131,
ND
. ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
(pCi/1)
140,, T
Ba-La
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
I37Cs
70
65
40
20
60
50
50
45
55
50
55
ND
10
65
35
120
40
60
60
55
35
30
40
Concentration
Ca
1. 17
1.23
1.22
1.20
1.08
1. 14
1.10
1.20
1. 12
1.20
1.20
1.20
1.23
1. 12
1.17
1. 18
1. 1.7
1. 18
1. 17
1. 18
1. 14
1. 14
1. 14
(gm/1)
K
1.5
1.5
1.5
1.3
1.5
1.4
1.4
1.2
1.2
1.3
1.3
1.5
1.3
1.6
1.3
1.4
1.6
1.6
1.2
1.5
1.4
1.6
1.3
ro
vO
-------
Routine Milk Sample Results (continued)
COLLECTION DATA
ANALYTICAL DATA
Location
St. George, Utah(cont')
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
R. Cox
Date
11/05/64
11/13/64
11/20/64
11/27/64
12/04/64
12/11/64
12/18/64
Activity (pCi/1)
89Q
Sr
5
ND
ND
ND
ND
ND
ND
90_
Sr
4.
6.
8.
20.
7.
7.
10.
131 14(
ND
ND
ND
ND
ND
ND
ND
Ba-La
ND
ND
ND
ND
ND
ND
ND
137^,
Cs
40
35
50
30
65
45
45
Concentration
Ca
1.20
1. 14
1. 14
1.09
1. 17
1. 18
1. 01
(gm/1)
K
1.6
1.4
1.5
1.4
1.4
1.4
1.6
oo
o
-------
APPENDIX II
SPECIAL MILK SAMPLING RESULTS
Parrot Event Milk Sampling Results 31
Milk results of the Sulky Event 32
Milk Sample Results for Kiwi B4E EP-V 33
Milk Sample Results for Kiwi B4E EP-VI 38
NRX-A2 Milk Sample Results 39
-------
Appen'li;.; II
Parrot Event Milk San.pit RL-.•'.•:!
COLLECTION DATA
ANALYTICAL DATA
u>
Location
Alamo, Nevada
Stewart
Stewart
Caliente, Nevada
Young
Young
Hiko, Nevada
Schofield
Moapa, Nevada
Perkins Ranch
Nyala, Nevada
Ivi.' Sharp
Pioche, Nevada
Horlachers
Date Collected
12/19/64
12/23/64
12/19/64
12/23/64
12/19/64
12/19/64
12/16/64
12/22/6-1
89«=
Sr
ND
ND
ND
ND
ND
ND
iu
ND
Activity
90
Sr
2
3
6
4
12
1
16
4
(pCi/1)
131I
ND
ND
ND
ND
ND
ND
HD
ND
133i
ND
ND
ND
ND
ND
ND
ND
ND
Cs
20
20
30
45
55
10
130
45
Concentration
(gm/1)
Ca
1.22
1. 17
1. 19
1.40
1. 15
ND = Not detectable
-------
Appendix II (continued)
Milk results of the Sulky Event.
Location
Duckwater, Nevada
Halstead Ranch
Nyala, Nevada
Sharp's Ranch
Nyala, Nevada
Sharp's Ranch
Date
Collected
12/19/64
12/19/64
12/23/64
Date
Counted
12/20/64
12/20/64
12/23/64
Activity pCi/1
I31j 133j
ND ND
ND ND
ND ND
l37Cs
90
140
50
OJ
ro
ND = Not detectable
-------
Appendix II (continued)
Milk Sample Results for Kiwi B4E EP-V
U)
COLLECTION
Location
Nyala, Nevada
M. Sharp Ranch
M. Sharp Ranch
M. Sharp Ranch
M. Sharp Ranch
Currant, Nevada
Blue Eagle Ranch
Blue Eagle Ranch
Blue Eagle Ranch
Blue Eagle Ranch
Blue Eagle Ranch
Manzonie Ranch
Manzonie Ranch
Duckwater, Nevada
Halstead Ranch
Sunnyside, Nevada
Hendrick Ranch
Hendrick Ranch
Hendrick Ranch
Lund, Nevada
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
McKenzie Dairy
DATA
Date Collected
8/29/64
8/30/64
8/31/64
9/01/64
8/29/64
8/29/64
8/31/64
9/01/64
9/02/64
9/01/64
"97~UZ7l>4
9/02/64
8/30/64
8/31/64
9/02/64
8/29/64
8/30/64
8/31/64
9/01/64
ANALYTICAL DATA
Activity (pCi/1)
131,
ND
ND
, ND
, ND
\
\
i ND
;ND
ND
ND
ND
ND
TTO
ND
ND
ND
ND
ND
ND
ND
ND
133i
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND .
TTO
ND
ND
ND
ND
ND
ND
ND
ND
137_
Cs
25
100
70
70
65
70
80
100
90
50
60
65
90
95
75
95
85
80
100
ND = Not detectable
-------
Appendix II (continued)
Milk Sample Results for Kiwi B4E EP-V (continued)
OJ
COLLECTION
Location
Ely, Nevada
-Scxrr:g;trvO\VTl Ranch
Georgetown Ranch
Georgetown Ranch
Cherry Creek, Nevada
Henroid Ranch
Ely, Nevada
Yelland Ranch
Yelland Ranch
Yelland Ranch
Yelland Ranch
Eldridge Ranch
Shoshone, Nevada
Kirkeby Ranch
Kirkeby Ranch
Kirkeby Ranch
Kirkeby Ranch
Kirkeby Ranch
Ursine, Nevada
Donahue Ranch
Donahue Ranch
Donahue Ranch
Donahue Ranch
Lytle Ranch
Lytle Ranch
Lytle Ranch
DATA
Date Collected
8/30/64
8/31/64
9/02/64
9/02/64
8/29/64
8/30/64
8/31/64
9/01/64
9/02/64
8/29/64
8/30/64
8/31/64
9/01/64
9/02/64
8/30/64
8/31/64
9/01/64
9/02/64
8/29/64
8/30/64
9/01/64
ANALYTICAL DATA
Activity (pCi/1)
131,
ND
ND
ND
'NO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
20
ND
ND
ND
ND
ND
ND
133,
TND
ND
ND
ND
ND
ND
ND
ND
JSP
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
137Cs
45
45
50
90
115
85
110
130
150
70
25
20
30
10
40
40
60
55
25
20
60
ND = Not detectable
-------
Appendix II (continued)
Milk Sample Results for Kiwi B4E EP-V (continued)
OJ
COLLECTION
Location
Pioche, Nevada
Horiacher Ranch
Horlacher Ranch
Horiacher Ranch
Horlacher Ranch
Panaca, Nevada
Lee Ranch
Lee Ranch
Caliente, Nevada
Young Ranch
Young Ranch
Young Ranch
Young Ranch
Young Ranch
Elgin, Nevada
Bradshaw Ranch
Hiko, Nevada
Schofield Dairy
Schofield Dairy
Schofield Dairy
Schofield Dairy
Schofield Dairy
Alamo, Nevada
Stewart Dairy
Stewart Dairy
Stewart Dairy
Stewart Dairy
Stewart Dairy
DATA
Date Collected
»/z^/64
8/30/64
8/31/64
9/01/64
9/01/64
9/02/64
8/29/64
8/30/64
8/31/64
9/01/64
9/02/64
9/01/64
8/29/64
8/30/64
8/31/64
9/01/64
9/02/64
8/29/64
8/30/64
8/31/64
9/01/64
9/02/64
ANALYTICAL DATA
Activity (pCi/1)
131i
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
133i
' 1TO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
137^,
Cs
55
60
65
80
60
65
30
20
20
20
30
60
45
40
40
40
40
40
40
40
65
50
ND = Not detectable
-------
Appendix II (continued)
Milk Sample Results for Kiwi B4E EP-V (continued)
COLLECTION
Location
Cedar City, Utah
College of So. Utah
Beaver, Utah
Roberts Ranch
Roberts Ranch
Roberts Ranch
Carter Ranch
Milford, Utah
Goodwin Ranch
Good-win Ranch
Goodwin Ranch
- Gssdi.viri-.Sa. net
Fillmore, Utah
Utley Ranch
Utley Ranch
Utley Ranch
Delta, Utah
Anderson Ranch
Anderson Ranch
Anderson Ranch
Anderson Ranch
Garrison, Utah
Gonder Ranch
Gonder Ranch
Gonder Ranch
Gonder Ranch
Gonder Ranch
DATA
Date Collected
8/31/64
8/31/64
9/01/64
9/02/64
8/31/64
8/30/64
8/31/64
9/01/64
QJ.O2JA4.
8/29/64
8/30/64
8/31/64
8/29/64
8/30/64
8/31/64
9/02/64
8/29/64
8/30/64
8/31/64
9/01/64
9/02/64
ANALYTICAL DATA
Activity (pCi/1)
131i
ND
ND
ND
ND
ND
ND
ND
ND
. JSLD
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
133,
ND
ND
ND
ND
ND
ND
ND
. ND
JSLD
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
137Cs
65
60
55
35
45
ND
25
25
30
25
40
65
95
110
115
50
40
55
45
55
45
ND = Not detectable
-------
Appendix II (.continued)
Milk Sample Results for Kiwi B4E EP-V (continued)
OJ
COLLECTION DATA
Location
Casper, Wyoming
Meadow Gold Dairy
Meadow Gold Dairy
Cheyenne, Wyoming
Dairy Gold
Dairy Gold
Plains Dairy
Plains Dairy
Lyman, Wyoming
Federated Farm
Powell, Wyoming
Cream O V-all-ey Dairy
Cream O Valley Dairy
Riverton, Wyoming
Morning Star Dairy
Eden Valley, Wyoming
Federated Farm
Sheridan, Wyoming
Jersey Creamery
Sheridan County Dairy
Date Collected
8/31/64
9/01/64
8/30/64
8/31/64
8/30/64
8/31/64
8/30/64
8/31/64
9/01/64
8/31/64
8/31/64
8/30/64
8/31/64
ANALYTICAL DATA
Activity (pCi/1)
131,
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
133i
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
137Cs
BO
80
90
60
60
80
60
90
80
70
75
100
105
ND = Not detectable
-------
Appendix II (continued)
Milk Sample Results for Kiwi B4E EP-VI
COLLECTION
Location
Hiko, Nevada
Schofield Dairy
Schofield Dairy
Schofield Dairy
Schofield Dairy
Schofield Dairy
Alamo, Nevada
Stewart Dairy
Stewart Dairy
Stewart Dairy
Stewart Dairy
00 Pioche, Nevada
"HtyrlacticT I\ancu
Horlacher Ranch
Horlacher Ranch
Caliente, Nevada
Young Ranch
Young Ranch
Young Ranch
Ursine, Nevada
Lytle Ranch
Lytle Ranch
DATA
Date Collected
9/12/64
9/13/64
9/15/64
9/17/64
9/23/64
9/11/64
9/12/64
9/13/64
9/15/64 .
7/liY64
9/12/64
9/13/64
9/11/64
9/12/64
9/13/64
9/12/64
9/13/64
ANALYTICAL DATA
Activity (pCi/1)
131I
3G
40
ND
ND
ND
ND
ND
ND
ND
TNl3
ND
ND
ND
ND
ND
ND
•ND
133
ND
ND
ND
ND
ND
ND
ND
ND
ND
~ND
ND
ND
ND
ND
ND
ND
ND
137_
Cs
4=0
35
ND
ND
ND
35
30
35
85
"70
70
55
10
20
20
30
15
ND = Not detectable
-------
Appendix II (continued)
NRX-A2 Milk Sample Results
COLLECTION
Location
Barstow, California
Hills Dairy
Cantil, California
M/R Cattle Co.
Lone Pine, California
Lone Pine Dairy
Olancha, California
Hunters Ranch
Lathrop Wells, Nevada
Dansby Ranch
Dansby Ranch
Dansby Ranch
Dansby Ranch
Dansby Ranch
Alamo, Nevada
Stewart Dairy
Hiko, Nevada
Schofield Dairy
Lund, Nevada
McKenzie Dairy
DATA
Date. Collected
9/27/64
9/27/64
9/26/64
9/26/64
9/24/64
9/25/64
9/26/64 '
9/27/64
9/29/64
10/20/64
10/20/64
10/16/64
ANALYTICAL DATA
Activity (pCi/1)
131I
ND
ND
ND
ND
ND
ND
TSTD
ND
ND
ND
ND
ND
I33x
ND
ND
ND
ND
200
70
"ZTJ
ND
ND
ND
ND
ND
137,,
Cs
20
40
40
. 65
20
' 30
20
25
15
45
10
35
ND = Not detectable
-------
DISTRIBUTION
1 - 15 Southwestern Radiological Health Lab.., Las Vegas, Nevada
16 Robert E. Miller, Manager, NVOO/AEC, Las Vegas, Nevada
17 R. H. Thalgott, Test Manager, NVOO/AEC, Las Vegas, Nevada
18 Chief, NOB/DASA, NVOO/AEC, Las Vegas, Nevada
19 Martin B. Biles, DOS, USAEC, Washington, D. C.
20 Ralph S. Decker, SNS, USAEC, .Washington, D. C.
21 D. H. Edwards, NVOO/AEC, L^s Vegas, Nevada
22 Henry G. Vermillion, NVOO/AE
------- |