SWRHL-24r
OFF-SITE SURVEILLANCE ACTIVITIES OF THE
SOUTHWESTERN RADIOLOGICAL HEALTH LABORATORY
from July through December 1965
by the
Southwestern Radiological Health Laboratory
U. S. Public Health Service
Department of Health, Education, and Welfare
Las Vegas, Nevada
May 23, 1966
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
information contained in this report, or that the use of any infor-
mation, apparatus, method, or process disclosed in this report
may not infringe privately owned rights; or
B. Assumes any liabilities with respect to the use of, or for dam-
ages resulting from the use of any information, apparatus, method,
or process disclosed in this report.
As used in the above, "person acting on behalf of the Commission" in-
cludes any employee or contractor of the Commission, or employee of
such contractor, to the extent that such employee or contractor of the
Commission, or employee of such contractor prepares, disseminates,
or provides access to, any information pursuant to his employment or
contract with the Commission, or his employment with such contractor.
-------
SWRHL-24r
OFF-SITE SURVEILLANCE ACTIVITIES OF THE
SOUTHWESTERN RADIOLOGICAL HEALTH LABORATORY
from July through December 1965
by the
Southwestern Radiological Health Laboratory
U. S. Public Health Service
Department of Health, Education, and Welfare
Las Vegas, Nevada
May 23, 1966
Copy No. 36
Philip W. Allen
ARFRO, ESSA
Las Vegas, Nevada
for the
U. S. ATOMIC ENERGY COMMISSION
-------
ABSTRACT
The Southwestern Radiological Health Laboratory of the U. S. Public
Health Service performed off-site radiological surveillance for nine
announced events during the period from July through December 1965.
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. No reactor experiments were
conducted during this time.
During the six month period there was no release of radioactivity
which was detected off-site. Also during this period an underground
test was conducted in Alaska as part of the Vela Uniform program.
No radioactivity was released following this detonation.
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 off-site population were not
exceeded.
-------
TABLE OF CONTENTS
ABSTRACT i
TABLE OF CONTENTS ii
I. INTRODUCTION 1
II. OPERATIONAL PROCEDURES 2
A. Ground Monitoring 2
B. Dose Rate Recorders 2
C. Aerial Cloud Tracking 3
D. Aerial Sampling 3
E. Air Sampling 3
F. Milk and Water Sampling 4
G. Vegetation Sampling 4
H. Film Badges 5
I. Public Relations 5
J. Medical and Veterinarian Services 5
K. Bioenvironmental Research 6
III. ANALYTICAL PROCEDURES 7
IV. RESULTS 10
V. CONCLUSIONS 12
APPENDIX
DISTRIBUTION
11
-------
I. INTRODUCTION
During the period July through December 1965, nine announced under-
ground nuclear tests were conducted by the U. S. Atomic Energy Com-
mission at their Nevada Test Site as a part of Operation Flintlock.
In addition, Project Longshot was conducted underground on Amchitka
Island in the Aleutian Chain as part of the Vela Uniform program.
The U. S. Public Health Service carried out a program of radiological
surveillance of the public areas off-site for the Operational Safety
Division of the AEC's Nevada Operations Office under a Memorandum
of Understanding between the U. S. Atomic Energy Commission (AEC)
and the U. S. Public Health Service (PHS).
The Off-Site Radiological Safety Program of the Southwestern Radio-
logical Health Laboratory (SWRHL) conducted its program of radio-
logical monitoring and environmental sampling in the off-site areas
surrounding the restricted area enclosed within the Nevada Test Site
and the Nellis Air Force Range. This overall complex of the Nevada
Test 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 six month period.
-------
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 radio-
active material. If a release had occurred, the teams would have
conducted a ground monitoring program directed from .Control Point
headquarters via two-way radio communications. Ground monitoring
would then continue until activity levels became too low to necessitate
further monitoring.
Each monitor was equipped with an Eberline E-500B, a Precision
Model 111 Standard "Scintillator", a Beckman MX-5, and a Tracer-
lab AN/PDR TIB. The Eberline E-500B has a range of 0 to 200 milli-
roentgens per hour (mR/hr) beta-gamma detection in four scales with
an external halogen filled GM tube and a 0 to 2000 mR/hr range,
gamma only, from an internal Anton 302 tube. The Precision Model
111 Standard "Scintillator" was used primarily for low level detection
since it provides a 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. Dose Rate Recorders
To supplement the ground monitoring program, Eberline-RM-11 dose
rate recorders were utilized to document cloud passage at fixed locations,
2
-------
thereby allowing mobile monitoring teams to continue folio-wing the
release as it moved through the off-site area. These recorders
utilize a Geiger tube detector and operate on 110V 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 is used in this
tracking mission. '
Aerial cloud tracking is essentially used to detect relative radiation
intensities and to indicate cloud position, speed and direction. The
information thus obtained is utilized to position ground monitors to
insure comprehensive ground coverage and subsequently better sur-
veillance.
D. Aerial Sampling
The aerial sampling program was performed by the Engineering
Development Program of the Southwestern Radiological Health Lab-
oratory. The program used two C-45 aircraft for cloud sampling
activities. Cloud samples were collected by cryogenic, electro-
static precipitator, and mass air sampling techniques. The methods
developed have resulted in measurements of cloud inventories -which
have been reasonably consistent with determinations made by other
organizations and other methods.
E. Air Sampling
The SWRHL Air Surveillance Network operated ninety-eight stations
9
during this six month period. The net-work now includes stations
d
3
-------
operating in every state west of the Mississippi except Montana and
North Dakota. Also, during October, nineteen stations were established
in Alaska and the Aleutian Islands. These stations operated through
October and, in some cases, into November. The air sampler used
in the Air Surveillance Network is a Gelman "Tempest". The "Tempest"
Air Sampler employs a Gast Model 1550 vacuum pump driven by a Gen-
eral Electric 1/2 hoursepower motor. The pump runs at 1440 rpm with
an average flow rate of approximately 10 cfm. The sampler is equipped
to use a 4" diameter Whatman 541 filter paper and an MSA charcoal
cartridge. The total volume of air sampled is calculated from an
average vacuum reading (which in turn indicates the average flow rate)
and the total time of sampling.
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. Fifty-nine sources were routinely sampled during
this period, most on a monthly basis. A total of 204 samples were
collected from these locations. In the event of cloud passage over a
specific area, intensified sampling within the area is conducted to
document changes in activity.
Water samples were collected on a routine basis, unless circum-
stances dictated specific source sampling. Both potable and nonpot-
able water supplies were sampled. During this period 218 water
samples were collected from 63 sources. Most of these sources are
sampled on a monthly basis.
G. Vegetation Sampling
Normally, vegetation samples are collected only in the event of a
release of radioactive material. The analytical results of these
samples are used to delineate the fallout pattern.
-------
H. Film Badges
Approximately one hundred fifty 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
Sciences Department of Reynolds Electrical and Engineering Co. ,Inc.
Approximately seventy-five station badges were also utilized to pro-
vide more complete coverage. The badge used is made of DuPont
type 555 film. Dose, as determined from this film, is accurate to
+_50% in the 20 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 Commis-
sion. As a result of favorable public relations, a number of off-site
residents took part in the environmental sampling program; all
routine air sampling stations except Las Vegas were operated by
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 the 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.
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 was 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 Southwestern Radiological Health Laboratory
is Bioenvironmental Research. The mission of this program is, in
part, to investigate the inter-relationships among the levels of radio-
nuclide contamination of air, soil, water, vegetation and milk.
-------
III. ANALYTICAL PROCEDURES
All air sample prefilters and charcoal cartridges were returned to the
Southwestern Radiological Health Laboratory in Las Vegas for radio-
logical analyses. 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 percent 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 collection. The computational
procedure employed depends upon the assumption that a decay con-
stant can be determined for each individual sample and that this con-
stant can then be used to extrapolate the activity to the end of the col-
lection period.
Each prefilter selected and all charcoal cartridges were analyzed for
gamma isotopes by placing them directly on a 4"x 4" Nal(Tl) crystal
coupled to a TMC Model 404 C gamma pulse height analyzer viewing
energies from 0 to 2 Mev.
Detection capability of the system as shown in Table 1 is an empiri-
cal estimate 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 resulting in
a complex spectrum.
c. MSA charcoal collects gaseous fission products only (primari-
ly iodines).
d. An eight isotope matrix is employed for computation and
-------
e.
isotopes other than those examined are present in amounts
which are small relative to those eight.
Natural activity on air samples is approximately five times
system background.
Table 1. Threshold detectability at time of count of several radionu-
clides in various samples (90% confidence level).
Sample Type
Whatman No. 541
(pCi)
MSA Charcoal
(pCi)
131!
500
200
200
100
132Te-I
1000
--
400
--
>33I
500
200
200
100
135!
1000
--
400
--
14°Ba-La
500
200
200
100
Length
of Count
10 min.
1-0 min.
10 min.
10 rain.
Notes
1
2
1
2
3. 5 liter water-"
(pCi/1)
3. 5 liter milk*
(pCi/1)
20 40-50 20-30 40-50
20
20-30
20
20
40 min.
40 min.
''-Counted in 3. 5 liter inverted well (Marinelli) aluminum beakers.
1 - counted at less than 3 days after fissioning.
2 - counted at 3 days or more after fissioning.
3 - with 137Cs = 100 pCi/1.
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) 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 percent confidence level is approximately equal
to +50%.
Biological discrimination will limit the number of isotopes present in
a milk sample to relatively few. Under normal sampling procedures,
this discrimination coupled with the short physical half life will tend
8
-------
to eliminate 1 32I and 1 35I from the sample by the time it is counted.
At the 95 percent confidence level reported values for milk are
+10 pCi/1 or 10 percent at the time of count whichever is greater for
a 40 minute count.
After any release of activity from the NTS, milk samples are collect-
ed 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 lower 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 that value are reported as<20pCi/l.
All liquid samples are counted in 3. 5 liter inverted well aluminum
beakers which are placed on top of a 4"x 4" crystal coupled to a
400-channel gamma pulse height analyzer. Overall detection efficien-
cy for the 0. 364 Mev photopeak of 1 311 is 6. 4 percent. A matrix
technique is employed to compute the interference due to the presence
of other isotopes. The input to this matrix is variable, allowing for
the simultaneous determination of any eight nuclides for which detec-
tion efficiencies and interference factors have been obtained. Actual
computation is performed by an IBM 1620 computer.
Water samples are analyzed for gross beta activity by slowly evap-
orating an aliquot to dryness in a 2" diameter stainless steel planchet
and counting the beta activity in a low background counter.
-------
IV. RESULTS
None of the nine announced detonations at the Nevada Test Site re-
sulted in releases of radioactive effluent which -was detected off-site.
The underground test conducted in Alaska did not release radioactiv-
ity to the atmosphere. No reactor experiments were conducted during
this period.
The only indication of positive results from sampling or monitoring
during this period was in a few milk samples. Some milk samples
collected north of the test range complex in early July 1965 contained
1 31I. The activity in these samples is attributed to the Phoebus 1-A
reactor experiment which -was conducted on the NRDS on June 25.
The results of the Phoebus experiment are discussed in detail in the
"Final Report of Off-Site Surveillance for the Phoebus 1-A Experi-
ment" (SWRHL-19r) and are summarized in "Off-Site Surveillance
Activities of the Southwestern Radiological Health Laboratory from
January through June 1965 (SWRHL-23r). The results of all milk
sampling from July through December are listed in the Appendix.
In addition to the above mentioned milk samples, two samples col-
lected in September,and one sample collected in October contained
1 31I. The values were on or near the detection limit for this isotope
(20 pCi/1). These results cannot be attributed to any release, for-
eign or domestic.
Milk samples listed in the Appendix from the states of Colorado,
Idaho, and Oregon are not collected routinely but are the result of
activating a portion of the Standby Milk Network on a trial-run basis.
This network was established to supplement the laboratory's capability
10
-------
to sample milk in the event of a release of radioactivity where addi-
tional sampling is deemed necessary. Participating milk producers
mail their samples to the laboratory when alerted to do so. Occasion-
ally, as during this period, a portion of the network is activated in
order to insure that the system is functioning properly.
The highest gross beta concentration on an air sample filter was
2.7 pCi/m3 at Pahrump, Nevada in November; this value is at the
level of background. No fresh fission products were found on any air
sample analyzed during this period. Additionally, no fresh fission
products were found in any water sample analyzed during this period.
Film badges had no positive exposures which could be attributed to
activities.
11
-------
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 the guides established by the AEC and/or recommended by
the FRC and NCRP.
12
-------
APPENDIX
MILK SAMPLING RESULTS
-------
LOCATION
DATE COL.
I 131 BA140 CS137 SR89
SR90
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
ALAMO
ALAMO
ALAMO
ALAMO
ALAMO
ALAMO
ALAMO
ALAMO
ALAMO
ALAMO
ALAMO
CALIENTE
CALIENTE
CALIENTE
CALIENTE
CALIENTE
CURRANT
CURRANT
CURRANT
CURRANT
CURRANT
CURRANT
CURRANT
CURRANT
CURRANT
CURRANT
STEWARTS
STEWARTS
STEWARTS
STEWARTS
STEWARTS
STEWARTS
STEWARTS
STEWARTS
STEWARTS
STEWARTS
STEWARTS
NEV YOUNG
YOUNG
YOUNG
YOUNG
YOUNG
BLUE
BLUE
BLUE
BLUE
BLUE
BLUE
BLUE
BLUE
BLUE
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
RANCH
RANCH
RANCH
RANCH
RANCH
DUCKWATER
DUCKWATER
EAGLE RANCH
EAGLE RANCH
EAGLE RANCH
EAGLE RANCH
EAGLE RANCH
EAGLE RANCH
EAGLE RANCH
EAGLE RANCH
EAGLE RANCH
MANZONIES RANCH
NEV HALSTEAD RANCH
NEV HALSTEAD RANCH
07
07
07
07
07
07
08
08
09
1 1
12
08
08
09
11
12
07
07
07
07
07
07
09
10
11
07
07
08
02
02
04
05
07
15
05
31
30
19
03
04
30
29
03
07
01
03
04
05
07
18
02
07
18
08
09
04
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
2.0E1*
ND
5.0E1
ND
3.0E1
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.8E2
5.0E1
5.0E1
3.0E1
6.0E1
ND
ND
ND
ND
5.0E1
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
ND
ND
ND
5.
4.
3.
4.
4.
3.
3.
2.
2.
2.
3.
3.
3.
1.
3.
1.
1.
1.
1.
9.
6.
1.
5.
6.
1.
2.
3.
5E1
5E1
OE1
OE1
5E1
OE1
OE1
5E1
OE1
OE1
5E1
5E1
OE1
ND
5E1
5E1
3E2
OE2
1E2
2E2
OE1
5E1
OE1
5E1
5E1
1E2
5E1
5E1
5
B
10
B
B
B
B
TOO
B
B
B
B
B
B
B
B
10
B
25
25
B
B
5
B
B
35
B
B
3
5
8
5
9
8
8
SOUR
2
6
6
9
4
1
4
5
8
11
13
9
7
6
5
12
20
21
9
8
*2.0E1 = 2.0 x 101 = 20
ND = Not Detectable
B = <5
-------
LOCATION
DATE COL.
1131 BA140 CS137 SR89
SR90
DUCKWATER NEV HALSTEAD RANCH
DUCKWATER NEV HALSTEAD RANCH
DUCKWATER NEV HALSTEAD RANCH
EUREKA NEV FISH CREEK RANCH
FISH CREEK RANCH
WILLOWS RANCH
CREAMLAND DAIRY
CREAMLAND DAIRY
CREAMLAND DAIRY
CREAMLAND DAIRY
CREAMLAND DAIRY
CREAMLAND DAIRY
GOLD DAIRY
GOLD DAIRY
EUREKA
EUREKA
FALLOM
FALLON
FALLON
FALLON
FALLON
FALLON
GENOA
GENOA
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV MEADOW
NEV MEADOW
GENOA NEV MEADOW GOLD DAIRY
GENOA NEV MEADOW GOLD DAIRY
HIKO NEV SCHOFIELD DAIRY
HIKO NEV SCHOFIELD DAIRY
HIKO NEV SCHOFIELD DAIRY
HIKO NEV SCHOFIELD DAIRY
HIKO NEV SCHOFIELD DAIRY
HIKO NEV SCHOFIELD DAIRY
HIKO NEV SCHOFIELD DAIRY
HIKO NEV SCHOFIELD DAIRY
HIKO NEV SCHOFIELD DAIRY
LAS VEGAS NEV HILAND DAIRY
LAS VEGAS NEV ANDERSON DAIRY
LAS VEGAS NEV HINIES DAIRY
09
10
11
07
09
12
12
12
12
12
12
12
12
12
12
12
07
07
07
07
08
08
10
11
12
10
10
10
02
06
17
07
02
01
01
02
03
04
06
07
01
03
05
06
02
03
04
07
05
30
01
04
06
04
04
04
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
2.0E1
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
6.0E1
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
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
5
1
1
3
1
2
3
2
2
2
3
3
5
2
6
5
5
2
2
1
2
2
9
1
2
1
ND
ND
.5E1
1E2
3E2
.5E1
.5E1
.5E1
5E1
.OE1 NO
. 5E1 NO
.5E1
.5E1
.OE1 NO
.OE1 NO
.5E1
.OE1
OE1
.5E1
OE1
.OE1
.OE1
.OE1
5E1
.5E1
.5E1
.OE1
5E1
B
5
B
B
B
B
B
B
B
B
B
B
15
15
10
B
B
B
B
B
8
5
B
5
4
3
8
11
7
8
2
7
7
CHEM
CHEM
4
7
CHEM
CHEM
7
7
9
6
4
8
3
4
3
14
1
4
3
-------
LOCATION
DATE COL.
1131 BA140 CS137 SR89
SR90
LAS VEGAS NFV
LAS VEGAS NEV
LATHROP WELLS
LATHROP WELLS
LATHROP WELLS
LATHROP WELLS
LATHROP DWELLS
MG DAIRY
ARDEN DAIRY
NEV DANSBY RN
NEV DANSBY RN
NEV DANSBY RN
NEV DANSBY RN
NEV DANSBY RN
LOGANDALE NEV VEGAS VALLEY
LUND NEVADA 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
MCKENZIE DAIRY
MCKENZIE DAIRY
MCKENZIE DAIRY
MCKENZIE DAIRY
MCKENZIE DAIRY
MCKENZIE DAIRY
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
LUND
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
NEVADA
10
10
08
08
09
10
12
12
07
07
07
07
08
08
08
09
09
09
09
09
10
10
10
10
11
11
11
12
04
04
04
25
30
28
08
06
03
09
17
29
05
14
19
01
09
18
23
30
07
14
22
30
05
13
24
04
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
ND
ND
ND
ND
ND
ND
ND
ND
ND
2.0E1
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
5.0E1
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
ND
ND
ND
ND
ND
ND
ND
3.
3.
3.
2.
2.
5E
OE
1
1
OE1
OE
5E
1
1
ND
3.
4.
4.
6.
4.
2.
4.
5.
5.
3
2.
3.
2.
3.
3.
3.
4.
4.
3.
1.
4.
4.
5E
OE
OE
OE
5E
OE
5E
5E
5E
5E
5E
5E
5E
5E
OE
OE
OE
5E
OE
5E
5E
OE
1
1
1
1
1
1
1
1
1
1
1
1
1
1
I
1
1
1
1
l
J.
1
1
5
5
B
B
B
B
B
B
B
B
B
5
B
10
10
B
5
B
B
5
B
B
B
B
B
B
B
B
6.
16.
4.
5.
2.
3.
3.
5.
8.
7.
9.
5.
7.
42.
8.
5 .
6.
8.
7.
5
5.
6.
8.
10.
7.
8.
5
8.
-------
LOCATION
DATE COL.
1131 BA140 CS137 SR89
SR90
LUND NEVADA MCKENZIE DAIRY -
LUND NEVADA MCKENZIE DAIRY
LUND NEVADA MCKENZIF DAIRY
LUND NEV MCKENZIE DAIRY
MESQUITE NEV HUGHES BROS DAIRY
MESQUITE NEV HUGHES BROS DAIRY
MOAPA NEV SEARLES DAIRY
MOAPA NEV SEARLES DAIRY
MOAPA NEV SEARLES DAIRY
MOAPA NEV SEARLES DAIRY
MOAPA NEV SEARLES DAIRY
NYALA NEV SHARP'S RANCH
NYALA NEV SHARP'S RANCH
NYALA NEV SHARP'S RANCH
NYALA NEV SHARP'S RANCH
PIOCHE NEV HORLACHERS RN
PIOCHE NEV HORLACHERS RN
PIOCHE NEV HORLACHERS RN
PIOCHE NEV HORLACHERS RN
PIOCHE NEV HORLACHERS RN
PIOCHE NEV HORLACHERS RN
RENO NEV MODEL DAIRY
RENO NEV MODEL DAIRY
RENO NEV MODEL DAIRY
RENO NEV MODEL DAIRY
RENO NEV VELVET CRESCENT CRMY
RENO NEV VELVET CRESCENT CRMY
RENO NEV VELVET CRESCENT CRMY
12
12
12
12
11
12
08
08
10
11
12
07
09
10
12
07
08
08
09
11
12
11
12
12
12
12
12
12
11
17
24
31
02
01
05
30
01
04
08
07
29
05
07
07
05
29
30
03
07
30
01
02
03
03
05
06
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
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
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
ND
ND
4.
4.
3.
2.
1.
4.
4.
3.
3.
3.
4e
9.
4.
7.
8.
6.
3.
5.
6.
7.
8.
3.
3.
3.
2.
2.
1.
3.
5E1
OE1
OE1
OE1
5E1
5E1
OE1
5E1
5E1
OE1
OE1
OE1
OE1
OE1
OE1
5E1
OE-1
OE1
OE1
OE1
5E1
5E1
5E1
5E1
5E1
5E1
5E1
5E1
5
B
5
5
B
B
B
B
SMPLE
B
B
10
B
5
B
10
B
B
B
B
B
B
B
NO
B
NO
NO
B
6
10
7
4
6
9
5
3
LOST
5
4
9
7
9
11
10
7
5
5
11
14
7
4
CHEM
5
CHEM
CHEM
7
-------
LOCATION
DATE COL.
1131 BA140 CS137 SR89
SR90
SPRINGDALE
SPRINGDALE
SPRINGDALE
YERRINGTON
PEACOCK RN
PEACOCK RN
PEACOCK RN
VALLEY DAIRY
RENO NEV VELVET CRESCENT CRMY
SPRINGDALE NEV PEACOCK RN
NEV
NEV
NEV
NEV
ALAMOSA COLO ALAMOSA MILK CO
BRUSH COLO MCLAGAN BROS CRM'Y
COLORADO SPRINGS COLO SINTON
COLORADO SPRINGS
CRAIG COLO YAMPA
YAMPA
YAMPA
YAMPA
YAMPA
YAMPA
YAMPA
D
CRAIG
CRAIG
CRAIG
CRAIG
CRAIG
CRAIG
DELTA
COLO
COLO
COLO
COLO
COLO
COLO
COLO
VALLEY
VALLEY
VALLEY
VALLEY
VALLEY
VALLEY
COLORADO
VALLEY DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
ARDEN M G DAIRY
GLENWOOD SPR COLO GLWD SPR CRMY
GRAND JCT COLORADO CLYMFR DAIRY
MONTE VISTA COLO SUNRISE DAIRY
MONARCH DAIRY
IDA R TERHAAR RN
IDA LEWIS STUB RN
IDA AL FREI RN
IDA FREI STUB T£R
ALBANY OREGON SNOW PEAK DAIRY
ALBANY OREGON SNOW PEAK DAIRY
SALIDA COLO
GRANGEVILLE
GRANGEVILLE
GRANGEVILLE
GRANGEVILLE
12
07
08
09
12
12
09
09
09
09
09
09
09
09
10
10
10
09
09
09
09
09
09
09
09
09
12
12
0
2
2
0
0
4
7
5
8
1
1
29
2
2
2
2
2
3
3
0
0
u
2
2
2
3
2
1
1
2
2
7
7
8
8
8
0
0
2
2
3
8
8
8
0
7
9
9
0
0
06
0
8
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
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
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
ND
ND
3.
5.
4.
7.
3.
5.
1.
2 .
3.
3 .
4.
2.
4«
4.
2.
6.
4.
2.
3.
1.
3.
2
4.
5.
5.
4.
3.
4.
OE
OE
5E
5E
5E
OE
5E
OE
OE
5E
5E
1
1
1
1
1
1
1
1
1
1
1
5E1
OE
1
OE1
5E
OE
UE
5E
5E
5E
OE
5E
OE
OE
OE
5E
OE
5E
1
1
1
1
1
1
1
1
1
1
1
1
1
1 NO
B
5
B
B
B
B
5
B
5
B
B
B
5
B
5
5
8
B
B
B
B
B
5
5
B
B
B
5
3
4
5
3
6
7
9
2
13
16
10
19
9
6
17
17
5
10
8
12
8
24
33
16
24
14
CHEM
-------
LOCATION
DATE COL.
I 131 BA140 CS137 SR89
SR90
ALBANY OREGON SNOW PEAK DAIRY
ALBANY OREGON SNOW PEAK DAIRY
ALBANY OREGON SNOW PEAK DAIRY
ALBANY OREGON SNOW PEAK DAIRY
ALBANY OREGON SNOW PEAK DAIRY
ASTORIA OREGON DARIGOLD DAIRY
BROOK INGS OREGON SEAVIEW DAIRY
BROOKINGS OREGON SEAVIEW DAIRY
COOS BAY OREGON BROOKMEAD DAIRY
CORVALLIS OREGON 0 S U DAIRY
CORVALLIS OREGON SUNNY BROOK D
EUGENE OREGON ECHO SPRING DAIRY
EUGENE OREGON ECHO SPRING DAIRY
EUGENE OREGON ECHO SPRING DAIRY
EUGENE OREGON ECHO SPRING DAIRY
EUGENE OREGON ECHO SPRING DAIRY
EUGENE OREGON ECHO SPRING DAIRY
EUGENE OREGON EUGENE FARMERS CR
GRANTS PASS OREGON ARDEN FARMS
MEDFORD OREGON JORGENSENS DAIRY
REEDSPORT OREGON REFDSPORT CRMY
ROSEBURG OREGON UMPQUA DAIRY
SALEM OREGON CURLYS DAIRY
TILLAMOOK OREGON TlLLAMOOK D
GARRISON UTAH GONDERS RANCH
GARRISON UTAH GONDERS RANCH
GARRISON UTAH GONDERS RANCH
GARRISON UTAH GONDERS RANCH
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
2
1
2
2
2
07
'08
0
1
9
0
09
10
11
11
13
01
06
08
02
03
01
01
02
03
04
05
06
06
30
01
30
01
01
02
07
04
01
05
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
6 5
65
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
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
ND
ND
5.
4»
6.
5
4.
2
6.
5.
7.
4.
3.
3.
3.
5.
3.
3.
3.
6.
3
3.
3.
3
5 .
1 .
4.
2.
1.
4.
5E
OE
OE
OE
5E
1 NO
1
1 NO
1 NO
1
2E2
OE
5E
OE
OE
OE
OE
OE
5E
OE
5E
5E
OE
OE
OE
5E
5E
OE
2E
OE
5E
5E
OE
i
1
1
1
1
1
1 NO
1 NO
1 NO
1
1 NO
1 NO
1
1
1
1
JL
1
2
1
1
T
X
1
B
B
8
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
CHEM
14
CHEM
CHEM
13
35
38
47
36
9
11
10
CHEM
CHEM
CHEM
10
CHEM
CHEM
9
9
12
10
15
22
6
3
5
6
-------
LOCATION
DATE COL.
1131 BA140 CS137 SR89
SR90
GARRISON UTAH GONDERS RANCH
GARRISON UTAH GONDERS RANCH
NEW
NEW
NEW
NEW
NEW
NEW
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
CASTLE
CASTLE
CASTLE
CASTLE
CASTLE
CASTLE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
R
R
R
R
R
R
R
R
R
R
R
R
R
R.
R
R
R
R
R
R
NEW
NEW
NEW
NEW
NEW
NEW
COX
COX
COX
COX
COX
COX
COX
COX
cox
cox
cox
cox
cox
cox
cox
cox
cox
cox
cox
cox
CAST
CAST
LE
LE
CASTLE
CAST
CAST
LE
LE
CASTLE
DAI
DAI
DAI
DAI
DAI
DAI
DAI
DAI
DAI
DAI
DAI
DAI
DAI
DAI
DAT
DAI
DAI
DAI
DAI
DAI
RY
RY
RY
RY
RY
RY
RY
RY
RY
RY
RY
RY
RY
RY
RY
P V
i \ T
RY
RY
RY
RY
D
D
D
D
D
D
11
12
07
08
08
09
11
12
07
07
07
07
07
08
08
08
08
09
09
09
09
09
10
10
10
10
11
11
1
2
0
0
6
1
1
2
24
2
1
0
0
1
0
1
2
09
I
2
2
6
2
9
06
1
J.
2
2
0
1
1
2
3
2
0
7
3
0
7
3
0
08
1
2
2
0
j[_
5
1
9
c
2
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
N D
ND
ND
ND
ND
2.0E1
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
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
3.
4.
5.
4.
3.
1.
c.
3
6.
6
4.
5.
4.
4.
6.
6
4.
4.
4.
OE
OE
OE
OE
OE
OE
5E
OE
5E
OE
5E
OE
5E
O'E
OE
5E
1
i
1
1
1
1
1
1
1
1
1
1
i
1
1
1
B
B
B
B
5
B
B
B
B
B
B
B
B
B
B
B
5 E 1 B
5E
5E
1
1
5.0E1
5.
3
1.
2.
2.
3.
3.
3«
OE
5E
5E
5E
OE
OE
OE
OE
1
1
1
1
1
1
1
1
P
B
B
B
B
B
B
B
B
B
B
6
6
8
14
4
6
6
5
11
13
8
8
6
9
12
12
11
8
9
14
8
6
-7
r
o
5
8
7
6
*
-------
LOCATION
DATE COL
1131 BA140 CS137
iR89
SR90
ST
ST
ST
ST
ST
ST
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
GEORGE
UTAH
UTAH
UTAH
UTAH
UTAH
UTAH
COX
COX
cox
cox
cox
cox
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
DAIRY
ST GEORGE UTAH R COX DAIRY
1 1
11
12
12
12
12
12
19
26
03
10
17
24
31
65
55
65
65
65
65
65
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
6
1.
2.
2.
2.
2.
3.
UE1
5E1
GEi
5E1
5E1
OE1
5E1
B
B
B
B
5
B
B
6.
7.
6.
7.
4.
6.
6.
-------
DISTRIBUTION
1-15 Southwestern Radiological Health Laboratory, Las Vegas, Nevada
16 Test Branch, (Lt.Col. Schmucker), DMA, AEC, Washington, D.C.
17 Col. D.I. Prickett, DASA, Sandia Base, Albuquerque, New Mexico
18-20 Gordon M. Dunning, DOS, AEC, Washington, D.C.
21-23 James G. Terrill, Jr., DRH, USPHS, Washington, D.C.
24 Raymond Moore, DRH, USPHS, Region VII, Dallas, Texas
25 Clifford M. Bacigalupi, LRL, Mercury, Nevada
26 Robert H. Goeckermann, LRL, Livermore, California
2? Bryce L. Rich, LRL, Mercury, Nevada
28 William E. Ogle, LASL, Los Alamos, New Mexico
29 Harry S. Jordan, LASL, Los Alamos, New Mexico
30 Charles I. Browne, LASL, Los Alamos, New Mexico
31 James E. Reeves, Manager, NVOO, AEC, Las Vegas, Nevada
32 Robert H. Thalgott, NVOO, AEC, Las Vegas, Nevada
33 Col. E. G. Halligan, DASA, NVOO, AEC, Las Vegas, Nevada
34 Otto H. Roehlk, ODS, NVOO, AEC, Las Vegas, Nevada
35 Henry G. Vermillion, NVOO, AEC, Las Vegas, Nevada
36 Philip W. Allen, ARFRO, ESSA, NVOO, Las Vegas, Nevada
37 Frank D. Cluff, ARFRO, ESSA, NVOO, Las Vegas, Nevada
38 Victor M. Milligan, REECo Rad-Safe, Mercury, Nevada
39 Mail and Records, NVOO, AEC, Las Vegas, Nevada
------- |