SWRHL-12r
FINAL REPORT OF OFF-SITE SURVEILLANCE
FOR
OPERATION NIBLICK
July 1, 1963-June 30, 1964
by the
Southwestern Radiological Health Laboratory
U. S. Public Health Service
Department of Health, Education, and Welfare
Las Vegas, Nevada
April 1, 1966
This surveillance performed under a Memorandum of
Understanding (No. SF 54 373)
for the
U. S. ATOMIC ENERGY COMMISSION
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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.
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SWRHL-12r
FINAL REPORT OF OFF-SITE SURVEILLANCE
FOR OPERATION NIBLICK
July 1, 1963-June 30, 1964
by the
Southwestern Radiological Health Laboratory
U. S. Public Health Service
Department of Health, Education, and Welfare
Las Vegas, Nevada
April 1, 1966
This surveillance performed under a Memorandum of
Understanding (No. SF 54 373)
for the
U. S. ATOMIC ENERGY COMMISSION
-------
ABSTRACT
Under a Memorandum of Understanding with the U. S. Atomic Energy
Commission, the U. S. Public Health Service conducted a program of
environmental surveillance for Operation Niblick, a series of nuclear
experiments carried out at the AEC's Nevada Test Site during the pe-
riod July 1, 1963, through June 30,. 1964. This report contains the
results of this surveillance.
Of the twenty-six announced events of Operation Niblick, including four
Plowshare events, two released radioactivity to the environment im-
mediately after detonation which was subsequently detected on the
ground in the off-site areas. These events were Eagle, conducted on
December 12, 1963 and Pike, conducted on March 13, 1964.
The Eagle Event release was not detected by ground monitors but low
concentrations of fresh fission products (maximum, 20 pCi/m3 133I)
were detected on charcoal cartridge air filters at four air sampling
stations located south of the Nevada Test Site. No fresh fission pro-
ducts were found in milk or water samples collected in downwind areas.
The Pike Event resulted in a release of radioactive effluent that was
detected by various sampling techniques as far south as Yuma, Arizona.
Maximum measurements by portable ground monitoring instruments
in the off-site areas were relatively low (maximum, 5.9 mR/hr net
gamma). Areas in the cloud path experienced low, but detectable,
residual contamination on vegetation and in some milk samples.
Maximum external and internal exposures to the off-site population
as a result of any one, or combination of, Operation Niblick events
were below the safety criteria as established by the Atomic Energy
Commission.
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FOREWORD
This report covers the activities of the Southwestern Radiological
Health Laboratory. These activities are conducted in accordance with
a Memorandum of Understanding with the U. S. Atomic Energy Com-
mission. In part, this memorandum authorizes the U. S. Public Health
Service to investigate, assess, record, and report the radiological
situation in the public areas surrounding the Nevada Test Site, and to
inform and protect the public should an unacceptable radiological situ-
ation develop.
This report is the final report for Operation Niblick and supersedes
all previous reports issued by the Public Health Service for this series.
All future requests for data from Operation Niblick will be referenced
to this report. It is neither possible nor desirable to include in this
report every item of data obtained. However, summaries of all data
pertaining to exposures or contamination of people or of property in
the off-site areas have been included.
11
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TABLE OF CONTENTS
ABSTRACT i
FOREWORD ii
TABLE OF CONTENTS iii
LIST OF TABLES v
LIST OF FIGURES vi
Chapter 1 INTRODUCTION 1
A. . MEDICAL AND VETERINARIAN SERVICES 2
B. PUBLIC RELATIONS 2
Chapter 2 OPERATIONAL PROCEDURES 3
A. EXTERNAL MEASUREMENTS 3
1. Ground Monitoring 3
2. Dose Rate Recorders 3
3. Aerial Cloud Tracking 5
4. Film Badges 5
B. ENVIRONMENTAL MEASUREMENTS 5
1. Air Samples 5
2. Milk and Water Samples 7
C. SAFETY CRITERIA 8
D. FIELD PROCEDURES 9
Chapter 3 RESULTS 11
A. SUMMARY OF TWO EVENTS 11
1. Eagle 11
a. Aerial and Ground Monitoring 11
b. Air Sampling 11
c. Additional Environmental Sampling 15
2. Pike 15
a. Ground Monitoring 15
111
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b. Aerial Cloud Tracking 16
c. Air 26
d. Water 26
e. Milk 26
f. Film Badges 26
g. Dose Rate Recorders 26
B. SUMMARY OF OPERATION NIBLICK 32
1. Air Sampling 32
2. Film Badges 32
3. Milk Sampling 32
4. Water Sampling 37
5. Vegetation Sampling 37
Chapter 4 DISCUSSION AND CONCLUSIONS 38
A. EXTERNAL EXPOSURES 38
B. AIR SAMPLING 38
C. MILK SAMPLING 38
D. WATER SAMPLING 39
E. CONCLUSION 39
APPENDIX
DISTRIBUTION
IV
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LIST OF TABLES
Table 1. Announced underground events of Operation Niblick. 12
Table 2. Air sampling data, Eagle Event, 12/12/63. 13
Table 3. Ground monitoring summary for the Pike Event,
March 13 and 14, 1964. 17
Table 4. Results of ground station air samples collected
following the Pike Event, March 13, 1964. 29
Table 5. Monthly gross beta activity averages from all per-
manent air sampling stations in operation during
Operation Niblick - activity in pCi/m3. 33
Table 6. Summary of monthly film badge placements. 34
Table 7. Milk samples collected during Operation Niblick
showing the presence of fresh fission products
(not including two Las Vegas farms). 36
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LIST OF FIGURES
Figure 1. Environmental sampling points as of June 30, 1964,
Operation Niblick. 4
Figure 2. Off-site instrument locations and roads monitored,
Eagle Event. 14
Figure 3. Roads monitored March 13, 1964, for the Pike Event. 22
Figure 4. Roads monitored March 14, 1964, for the Pike Event. 23
Figure 5. Sampling locations other than in Nevada for the Pike
Event. ' 27
Figure 6. Sampling locations in Nevada for the Pike Event. 28
Figure 7. Gamma dose rate vs. time at three locations
following the Pike Event, 3/13/64. 31
Figure 8. Routine film badge placement locations. 35
VI
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Chapter 1
INTRODUCTION
Operation Niblick was a series of underground nuclear tests conducted
from July 1, 1963 through June 30, 1964, by the U. S. Atomic Energy
Commission (AEC) at their Nevada Test Site. As for past operations,
the U. S. Public Health Service (PHS) carried out a program of radio-
logical surveillance of the public areas off-site for the Operational Safety
Division of the AEC's Nevada Operations Office. This surveillance is
conducted under a memorandum of understanding between the U. S. Atomic
Energy Commission and the U. S. Public Health Service.
The Off-Site Radiological Safety Program of the Southwestern Radiological
Health Laboratory (SWRHL) conducts its present program of radiological
monitoring and environmental sampling in the off-site area surrounding
the restricted area enclosed by 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 Develop-
ment Station (NRDS) and the Tonopah Test Range (TTR) and for simplicity
will be called the test range complex throughout this report.
In order to carry out the assigned program of off-site surveillance,
the PHS organized, equipped, and trained aerial monitoring teams,
mobile ground monitors, and provided for periodic sampling of air,
milk, water, vegetation, film badge placement and evaluation of other
environmental factors. A system of permanent, continuous air
sampling stations was maintained at locations surrounding the test range
complex, and provisions were made to supplement this network
with additional samplers if the need arose. During the latter part of the
-------
Niblick series, additional sampling points were established for regu-
larly scheduled milk and water sample collection to augment the special
samples that were being collected.
A. MEDICAL AND VETERINARIAN SERVICES
A PHS 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 and the services
of a Medical Officer were not required.
An Army Veterinarian assigned to the NVOO, AEC, was available to
the Public Health Service Off-Site Radiological Safety Program. Vet-
erinarian 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.
B. PUBLIC RELATIONS
An important part of off-site radiological safety activities is that of
public relations. In their everyday contacts with residents of the off-
site area, PHS personnel express their desire to speak to local groups
to explain the programs at the Nevada Test Site and the role of the
Public Health Service in them.
Talks and films covering elementary atomic physics and radiation effects
are given to school groups, while civic groups are offered talks and
films on atomic testing and the safeguards exercised to protect the
public.
A number of off-site residents took part in the environmental sampling
program. All routine sampling stations except Las Vegas were operated
by local citizens and many more people wore film badge dosimeters.
This cooperation saved greatly on manpower requirements, and gave
the individuals in a community a feeling of participation in the PHS activ-
ities.
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Chapter 2
OPERATIONAL PROCEDURES
A. EXTERNAL MEASUREMENTS
1. Ground Monitoring
Each monitor was equipped with the following monitoring instru-
ments: an Eberline 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 milliroentgens per
hour (mR/hr) beta-gamma over four linear scales with an external
halogen filled GM tube detector and a 0 to 2000 mR/hr gamma
only range from an internal Anton 302 tube detector. The Precision
Model 111 "Scintillator" is used primarily for low level detection
and provides for a range of 0 to 5 gamma 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
slide-open beta shield. The Tracerlab AN/PDR TIB has a range
of 0.05 to 50,000 mR/hr gamma in five scales. This instrument
employs an air ionization chamber detector. These instruments
are accurate to +20% when readings are taken to two significant
figures.
2. Dose Rate Recorders
Eberline RM-11 dose rate recorders were placed at several sta-
tions around the test range complex. (See Figure 1, page 4).
These recorders utilize a Geiger tube detector to document radia-
tion levels at specific locations. The instrument operates on
110V AC and has a 0.01 to 100 mR/hr range. Gamma dose rate
is recorded on a 30-hour or 8-day strip chart. The instrument
is accurate to +20%.
3
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NEVADA
UTAH
High volume
Lj air sampler
High volume air sam-
pier/charcoal cart.
A Milk sample
Water sample
RM-11 dose rate re-
corder.
-J \o
Figure 1. Environmental sampling points as of June 30, 1964, Operation Niblick.
4
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3. Aerial Cloud Tracking
A PHS aerial monitoring team was available for each event in the
Niblick series. In the event of a release of radioactive material,
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 used as a tool to track and detect rela-
tive 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 surveillance.
4. Film Badges
Approximately two hundred residents in the off-site area wore
film badge dosimeters throughout the series. The film badges
were changed each month and were processed by the Radiological
Sciences Department, Reynolds Electrical and Engineering Co.,Inc.
Approximately sixty-five single badge and five badge stations were
also used to provide more complete coverage.
B. ENVIRONMENTAL MEASUREMENTS
1. Air Samples
During this series the PHS used General Metal Works high volume
air samplers which utilize glass fiber prefilters and MSA charcoal
cartridges. The locations of these samplers are shown in Figure 1,
page 4. Twenty-four to thirty-four stations were operated routinely
and several additional stations were established as required. All
air sample prefilters were returned to Las Vegas to be counted
for gross beta activity with a thin window, large area gas flow
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proportional probe connected to a high speed sealer. The system
has an efficiency of approximately 30% for 1. 5 Mev betas. The
background for this system is 575 + 20 counts per minute.
Air samples were counted for gross beta activity as soon as pos-
sible after collection, and activity levels were computed at the
time of count for the purpose of screening samples and delineating
the effluent trajectory. These samples were then stored for five
days to allow natural activity to decay. They were recounted at
this time and again seven days later. Activity levels were then
recomputed to end of collection from these two later counts. Air
samples showing levels of activity significantly above natural back-
ground were recounted frequently to obtain a decay curve. The
curve obtained was then analyzed for the best fit to the general
equation y=ax . Based on an analysis of these decay curves, a
decay factor was determined. This factor was then used to extrap-
olate activity to end of collection.
All charcoal cartridges were gamma scanned by placing each car-
tridge directly on a 4"x 4" Nal(Tl) crystal coupled to a 400-channel
pulse height analyzer set to examine energies from 0 to 2 Mev.
The activity on the cartridge should represent gaseous fission
products only, especially the radioiodines. Detection efficiency
for this geometry is 18% at 0. 53 Mev (l 33I). The minimum detect-
able activity for each iodine isotope is 200 picocuries total on the
cartridge. Error estimates are such that values less than 1 pico-
curie per cubic meter of air collected (pCi/m3) are generally not
reported. Since it was not possible to define duration of effluent
passage at all locations, the reported values given as pCi/m3
assume an average concentration over each entire sampling period.
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2. Milk and Water Samples
After any release of radioactivity from the test range complex,
milk samples are collected from dairies (processing plants), pro-
ducing dairy farms, and farms producing milk for their own con-
sumption. Each sample was counted for 50 minutes. All liquid
samples are analyzed for gamma-emitting isotopes in 3. 5 liter
inverted well aluminum beakers which are placed on top of a
4"x 4" Nal(Tl) crystal coupled to a 400-channel pulse height ana-
lyzer. The detection efficiency for the 0. 364 Mev photopeak of
1 31I is 5. 3%. A matrix technique is employed in computation to
compensate for the interference due to the presence of other iso-
topes. The input to this matrix is variable, allowing for the simul-
taneous determination of any eight nuclides for which detection
efficiencies and interference factors have been obtained. Actual
computation is performed by an IBM 1620 computer. No attempt
was made to recount samples giving low positive values. The
lower limit of detection for gamma emitters in milk samples was
taken to be 20 picocuries per liter (pCi/1) at the time of count,
and all results below that value are reported as <20 pCi/1 or not
detectable (ND). The error associated with reported values is
+20 pCi/1 or 10%, whichever is greater. All reported values are
extrapolated to collection time.
Water samples are analyzed for gross beta activity by slow evap-
oration of an aliquot in a 2" diameter stainless steel planchet and
counting beta activity with a low-background counter. Sr-90 - Y-90
in equilibrium is used as a counting standard. Due to the temper-
atures encountered in evaporation and fixing the residue to the
planchet, volatile radionuclides, such as iodine and cesium, and
dissolved gases will be missing from the sample at time of count.
-------
This leads to gross beta results which would be low compared to
the total radionuclide content of the sample. Nevertheless, the
gross beta results are useful as a screening technique for samples
containing unusually high amounts of radioactivity or for observing
trends at a specific sampling location, and an observed increase
in gross activity indicates a need for further analysis of the sam-
ple.
After gamma analysis of milk samples was completed, certain
samples were analyzed for strontium-89 and 90. After addition
of strontium carrier, milk proteins are removed by trichloroacetic
acid precipitation. Following several purification steps, the puri-
fied strontium is stored for at least one week to allow for ingrowth
of yttrium-90. Strontium and yttrium are separated by nitric acid
precipitation and both fractions are counted in a low-background
beta counter. The strontium-89 activity is the calculated differ-
ence between the total strontium activity and the strontium-90 (as
yttrium-90 activity).
C. SAFETY CRITERIA
Throughout Operation Niblick, the criteria used for determining the
radiological hazard to the off-site population were those established
by the Atomic Energy Commission.
"For planning weapons tests the criterion shall be 3.9
Roentgens per year whole body exposure including any
exposure from non-weapons test activities (but excluding
background and medical x-rays). The criterion of 3.9
Roentgens is in the definite context used in the past, i.e. ,
every reasonable effort should be made to keep the radia-
tion exposures as low as possible, but for planning pur-
poses, if unanticipated yet credible circumstances could
result in estimated doses in excess of 3.9 Roentgens per
year, then the detonation should be postponed until more
favorable conditions prevail. Also, to avoid any given
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community receiving unusually high exposures over a period
of years, the guide shall be not more than 10 Roentgens in
any consecutive 10 year period."
"The Guides for radioactivity in air, water, milk and food-
stuffs were not to exceed one-tenth the values listed in AEC
Manual Chapter 0524, Standards for Radiation Protection.
These concentrations may be averaged over twelve consecu-
tive months."*
The external exposure was estimated from doses recorded by film
badges worn by off-site residents, or from records of dose rate read-
ings taken in populated areas by PHS radiation monitors and by dose
rate recorders. The external exposure excluded background and med-
ical exposures.
The concentrations of radioactivity in air and water, milk and food-
stuffs were averaged over a period of one year. The concentrations
in these media were determined from analysis of samples collected
from the off-site area. Data obtained during the series of tests which
constituted Operation Niblick showed that the guides were not exceeded.
D. FIELD PROCEDURES
The working field unit of the PHS was the monitoring team composed
of one or two people equipped with various survey instruments, sarrv-
pling apparatus, tools and supplies. Using dose rate meters or sur-
vey instruments, the teams monitored roads, areas, and locations
within the cloud trajectory. They set up additional air sampling sta-
tions and dose rate recorders, augmented routinely operating stations
with charcoal cartridge collectors and collected other environmental
samples when required. They also noted the presence of people or farm
animals in areas not usually inhabited, observed the condition of back
^(Quoted from a memorandum of Dr. Nathan H. Woodruff to James E.
Reeves dated August 1, 1962.)
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roads and trails which might be needed for cloud tracking or surveil-
lance routes, and checked infrequently traveled areas for radio recep-
tion and transmission.
During Operation Niblick, the PHS used aerial monitoring teams to
augment its surveillance program. Before detonation of a nuclear
device, the cloud tracking aircraft flew in a standby pattern within
sight of ground zero. After detonation, if no visible venting occurred,
low altitude passes were made downwind of ground zero to determine
if gaseous radioactive material could be detected. After collapse of
the cavity, if no radiation had been detected by the aerial team and
ground telemetry indicated no release of radioactive material, the
aerial monitoring mission was terminated. When a release did occur,
the aircraft made a series of passes at several altitudes beginning
downwind of ground zero and moving gradually outward. In this way
the team estimated the width and depth of the cloud and determined
its direction and speed of travel. Measurements of radiation intensity
were made to determine the distribution and magnitude of radioactive
material within the cloud, and to define concentration gradients if pos-
sible. These cloud tracking missions were terminated when the cloud
had dispersed or the activity it contained had dropped to levels too low
for measurement, or when flying conditions necessitated termination
of the flight.
10
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Chapter 3
RESULTS
Table 1 lists the twenty-six announced underground events conducted
during Operation Niblick. Two of these events released radioactivity
which was detected on the ground off-site. The results of surveillance
for these events are summarized below.
A. SUMMARY OF TWO EVENTS
1. Eagle
The Eagle Event was an underground detonation conducted at
0800 hours PST on December 12, 1963, by the Lawrence Radia-
tion Laboratory.
Some venting occurred immediately after detonation and continued
for a few minutes until the cavity collapsed. The released mate-
rial moved southeast at about twelve knots.
a. Aerial and Ground Monitoring
Four ground monitors, operating between Lathrop Wells and
Indian Springs, detected no radiation intensities above back-
ground.
An aerial survey at 5000' MSL from Ground Zero to Ash
Meadows at 1015 hours showed no radiation intensities above
background.
b. Air Sampling
Table 2 contains the results of all air sample filters showing
fresh fission products and Figure 2 shows off-site instrument
locations.
11
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Table 1. Announced underground events of Operation Niblick.
NAME OF EVENT
Pekan
Satsop
Kohocton
Ahtanum
Bilby
Grunion
Tornillo*
Clearwater
Anchovy
Mustang
Greys
Sardine
Eagle
Fore
Oconto
Klickitat*
Pike
Hook
Sturgeon
Turf
Pipefish
Backswing
Minnow
Ace*
Fade
Dub*
*Plowshare event
DATE OF EVENT
8/12/63
8/15/63
8/23/63
9/13/63
9/13/63
10/11/63
10/11/63
10/16/63
11/14/63
11/15/63
11/22/63
12/04/63
12/12/63
1/16/64
1/23/64
2/20/64
3/13/64
4/14/64
4/15/64
4/24/64
4/29/64
5/14/64
5/15/64
6/11/64
6/25/64
6/30/64
12
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Table 2. Air sampling data, Eagle Event, 12/12/63.
T *' Alr
Location ,, ,
Volume
(Azimuth & Distance) 3.
(mj)
Ash Meadows
(200°, 45 mi.)
Death Valley Junction,
Calif. (203°, 60 mi.)
Indian Springs
(157°, 41 mi.)
Lathrop Wells
(216°, 40 mi.)
238
1125
266
*
46.9
312.9
781.2
419
817
233
670
On
Time
12/12-1040
12/12-1505
12/12-0930
12/12-1558
12/12-0930
12/12-1705
12/12-0900
12/12-1730
12/12-0850
12/12-1530
Off
Time
12/12-1440
12/13-1000
12/12-1550
*
12/12-1705
12/13-1105
12/12-1730
12/13-1115
12/12-1530
12/13-1040
Col-
lector
F
C
F
C
F
C
F
C
F
C
F
C
F
C
F
C
F
C
Gross p
Count
(PCi/m3)
10
4
24
8
4
3
9
14
8
Gamma Pulse Height
(PCi/m3)
1 31 j 1 32 j
ND
ND
ND
ND
*Cartridge
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
D
ran through next
D
ND
ND
ND
ND
ND
ND
ND
ND
Analysis
133!
D
5
D
20
period
15
2
D
2
1
D
10
D
2
135I
D
2
ND
6
4
ND
ND
ND
ND
D
3
ND
ND
NOTES: Azimuth and distance are from Ground Zero. Gross beta air filter results at all other locations were essentially back-
ground on 12/12 through 12/16.
ND = Not detected.
D = Detected in trace amounts, not sufficient to quantitate.
= Not analyzed.
C = Charcoal cartridge.
F = Glass fiber filter.
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NEVADA
UTAH
PAHRANA8A T
LAKC
RIZONA
DHigh volume ai r
sampler
High volume air sam-
pler/charcoal cart.
Temporary high volume
sampler/charcoal cart
Figure 2. Off-site instrument locations and roads monitored, Eagle Event.
14
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c. Additional Environmental Sampling
Sixteen milk samples from eleven locations were analyzed
for specific gamma emitting isotopes. No fresh fission pro-
ducts were detected. The results of all milk samples col-
lected during the operation are listed in the Appendix.
No water samples were collected for analyses in relation to
this event.
2. Pike
The Pike Event was an underground detonation conducted by the
Los Alamos Scientific Laboratory at 0802 hours PST on March 13,
1964. Visible venting of gaseous and particulate material occur-
red immediately and continued for a few minutes until the cavity
collapsed.
a. Ground Monitoring
Thirteen ground monitors recorded over five hundred and
fifty individual dose rate measurements on the day of the
event. The maximum net gamma dose rate observed was
5.9 mR/hr at Cactus Springs and the maximum net beta plus
gamma observed was 40 mR/hr one mile east of Cactus
Springs. The beta plus gamma measurement was taken at
ground level.
By the time the cloud had reached Las Vegas (about 1230 hours
PST), a dose rate of 0. 28 mR/hr net gamma was observed.
On March 14, additional roads were monitored and most roads
monitored on March 13 were re-monitored. Residual contam-
ination was found from a few miles southwest of Las Vegas
to Mercury. Dose rate measurements of 0.01 to 0.07 mR/hr
net gamma and 0.01 and 0.8 mR/hr net beta plus gamma were
15
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observed. By March 15 residual contamination levels had
dropped to background in most areas.
A synopsis of ground monitoring results will be found in
Table 3 and the location of roads monitored and re-monitored
are shown in Figures 3 and 4 (pages 22 and 23).
b. Aerial Cloud Tracking
Aerial cloud tracking dose rate readings from portable mon-
itoring instruments are not corrected for aircraft attenuation,
air attenuation, geometry, aircraft and instrument contamin-
ation, and the inherent inaccuracies of taking instrument
readings in a high speed aircraft while in a cloud for a very
short time. Therefore, these measurements are only rela-
tive in that they represent the changes in dose rate in flying
from uncontaminated areas (background) into and across the
effluent. The data cannot be used to extrapolate ground con-
tamination or airborne radioactivity at ground level.
The U3-A aircraft crew first detected the radioactive cloud
from the Pike Event off-site at H+50 minutes. At this time
the leading edge of the cloud was located about seven miles
northwest of Indian Springs and the cloud was moving on a
course that would take it over the Indian Springs-Cactus
Springs area. At H+67 minutes a dose rate reading of
110 mR/hr was obtained at 7000 feet MSL five miles north-
west of Indian Springs on a flight perpendicular to the direc-
tion of movement of the cloud. This was the maximum read-
ing obtained during the off-site cloud tracking mission. From
H+85 minutes to H+123 minutes several passes were made in
the Indian Springs-Cactus Springs area as the cloud movement
down the Las Vegas Valley was documented. The highest
16
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Table 3. Ground monitoring summary for the Pike Event, March 13
and 14, 1964.
LOCATION
Time
(PST)
Net
Net Beta
Gamma plus Gamma
(mR/hr) (mR/hr)
MARCH 13
MERCURY TO LAS VEGAS
On Hwy. 95, 3. 7 mi. W. of Cactus Spgs. 1048
On Hwy. 95, 2. 9 mi. W. of Cactus Spgs. 1059
Cactus Springs, Nevada
On Hwy,. 95, 1 mi.E.of Cactus Spgs.
1048
1059
0919
0930
0940
1000
1030
1052
1210
1305
1400
1530
1015
1020
1025
1030
1035
1040
1050
1100
1110
1120
1130
1140
1150
1200
1215
1230
1245
3. 5
4.0
0. 1
2.4
4.1
3.7
4.4
5.9
3.3
1.9
1.6
0.8
2.9
2.4
2.9
2.9
2.9
4.4
3.9
3.4
2.9
2.9
2.9
2.9
1.9
2. 3
1.9
1.9
1.4
7.5
8. 5
11
12
13
17
18
35
40
35
18
15
18
14
12
12
11
12
g/c*
g/c
g/c
g/c
g/c
g/c
g/c
g/c
g/c
g/c
g/c
g/c
g/c
g/c
g/c
g/c
17
-------
Table 3. Ground monitoring summary for the Pike Event, March 13
and 14, 1964. (Continued)
_ __ Net Beta
LOCATION /PCT\ Gamma plus Gamma
( ' (mR/hr) (mR/hr)
MARCH ]
Indian Springs, Nevada
On
On
Hwy.
Hwy.
95
95
Cold Spring
On
On
Hwy.
Hwy.
95
95
Las Vegas,
, 10 mi.
, at Lee
Ranger
, 24 mi.
SE of Indian Spgs.
Canyon Turnoff
Station
NW of Las Vegas
, 7 mi.NW of Las Vegas
at Jet. of Rancho & Bonanza
L3
0930
0951
1005
1010
1048
1230
1445
1350
1402
1315
1447
1527
1555
0.
1.
0.
0.
1.
0.
2
9
4
7
5
35
ND
0.
0.
0.
0.
0.
0.
09
04
10
04
03
02
0.
1.
1.
0.
0.
0.
0.
0,
6
8
0
07
13
09
13
1
g/
g/
g/
g/
c
c
c
c
g/c
g/
g/
g/
c
c
c
MERCURY TO LAS VEGAS VIA ASH MEADOWS, PAHRUMP, ARDEN
AND HENDERSON
On Hwy. 85,from Mercury to 12mi.E. 0834-
of Mtn. Spgs. Summit (50 readings) 1335 ND
On Hwy. 85, 12 mi. W. of Arden Turnoff 1344 0.02
On Hwy. 85, 3. 5 mi. E. of Arden Turnoff 1416 0.18
On Hwy. 41, at its Jet. with Hwy. 91,
14 mi. S. of Las Vegas 1517 0.10
On Hwy. 41, 10 mi.NE of its Jet. with
Hwy. 91, 3 mi. SW of Henderson 1537 0.08
On Hwy.41, at its Jet. with Hwy. 95
at Henderson 1549 0.05
Las Vegas at Jet. of Tropicana Rd.
and Las Vegas Blvd. 1612 0.08
18
-------
Table 3. Ground monitoring summary for the Pike Event, March 13
and 14, 1964. (Continued)
Net Beta
LOCATION /PCT\ Gamma plus Gamma
( ' (mR/hr) (mR/hr)
MARCH 13
LAS VEGAS, NEVADA
104 E. Charleston Blvd. 1310 0.10
1505 0.12
1113 Ramona Circle 1235 0.12
At the Jet. of Smoke Ranch Rd. and
Hwy. 95 1253 0. 22
On Lone Mtn. Rd. , 2 mi. W. of Hwy. 95
(North Las Vegas) 1321 0.22
On Lone Mtn. Rd. , 6. 9 mi. W. of
Hwy. 95 (North Las Vegas) 1341 0.28
At the Jet. of Sahara and Decatur Blvd. 1224 0.07
At the Jet. of Vegas Drive and
Parkchester 1244 0.02
On W.Sahara, 2. 1 mi. E. of Jet. of
W.Charleston and W.Sahara 1345 0.10
Craig Rd. toward Nellis AFB
(North Las Vegas) 1310 0.08
LAS VEGAS TO BOULDER CITY
Las Vegas at Jet. of Highland and
Sahara 1600 0.07
On Hwy. 95, 10.4 mi.SE of Jet. of
Sahara and Boulder Hwy.
(East Las Vegas) 1707 0.03
On Hwy. 93, 2. 4 mi. W. of Boulder City 1733 0.03
Boulder City 1810 ND
19
-------
Table 3. Ground monitoring summary for the Pike Event, March 13
and 14, 1964. (Continuad)
___ Net Beta
LOCATION /TDCT\ Gamma plus Gamma
( ' (mR/hr) (mR/hr)
MARCH 14
LAS VEGAS TO JEAN, HENDERSON, BOULDER BEACH AND
RETURN TO LAS VEGAS
On Hwy. 91, from Las Vegas to 23 mi. 0857- 0.05-
SW of Las Vegas 0955 0.01 0.07g/c
On Hwy. 41, from Jet. of Hwys. 41 and 1101- 0.01- 0.04-
91 to Henderson 1203 0.02 O.llg/c
On Hwy. 41, from Jet. of Hwys. 95, 93 1237-
and 41 to Boulder Beach 1335 ND ND g/c
Las Vegas, on Tropicana Rd., 2 mi.
W.of Hwy.95 to Tropicana and 1430- 0.02-
Paradise Roads 1450 ND 0.07 g/c
On Hwy. 85, from Las Vegas to 3. 5 mi. 0900- ND- NO-
AM", of Jet. of 85 and 91 (At Arden) 0938 0.02 0.03 g/c
On Hwy. 95, from Las Vegas to 9. 7 mi.
S. of Jct.of 93 and 95 toward Search- 0915- ND- 0.03-
light (Railroad Pass) 1257 0.03 0. 10 g/c
KINGMAN, ARIZONA TO PHOENIX, ARIZONA
Kingman to Phoenix (readings approx. 1210-
every ten miles) 1757 ND ND g/c
LAS VEGAS TO OVERTON
Las Vegas to Overton via Hwy. 91
(all beta/gamma readings above bkg.
were taken in the area adjacent to 0906- ND-
Nellis AFB) 1515 ND 0.04 g/c
MT. CHARLESTON AREA
On Charleston Canyon Rd.from its Jet. . 0900- ND- ND-
with Hwy.95 to 9.6 mi. W.of Jet. 0958 0.02 0.2 g/c
20
-------
Table 3. Ground monitoring summary for the Pike Event, March 13
and 14, 1964. (Continued)
LOCATION
MARCH
Desert Game Range
On Lee Canyon Rd. from its Jet. with
Hwy. 95 to 12 mi.SW of Jet.
CACTUS -INDIAN SPRINGS AREA
Las Vegas to Cactus Springs
Indian Springs to Mercury
Time
(PST)
14
1112-
1133
1313-
1424
0751-
1310
0940-
1220
Net
Gamma
(mR/hr)
ND-
0.02
ND-
0.03
ND-
0.07
0.01-
0.07
Net Beta
plus Gamma
(mR/hr)
ND-
0.04
0.02-
0. 15
0.01-
0.8
0.01-
0. 2
g/c
g/c
g/c
-.-All readings taken at 3 feet above the ground except those noted as
g/c (ground contact).
ND=Not detectable.
21
-------
N. T. S.
LATHROP WELLS
1 QMERCURY
' I CACTUS
DESERT GAME
RANGE
DEATH
VALLEY
JCT
MI CHARLESTON
NO LAS VEGAS
MTN SPGS
SUMMIT SLOANQ
V NEVA
SEARCHLIGHT C
KE Y
DOSE RATE RECORDER
ROADS MONITORED ABOVE BACKGROUND
• ••••• ROADS MONITORED - BACKGROUND
o s 10 is 20 a
Figure 3. Roads monitored March 13, 1964, for the Pike event.
-------
DOSE RATE RECORDER
ROADS MONITORED ABOVE BACKGROUND
ROADS MONITORED-BACKGROUND
Figure 4. Roads monitored March 14, 1964, for the Pike Event.
-------
reading obtained during this period was 6 mR/hr at H+92
minutes, one-half mile west of Cactus Springs at an altitude
of 3300 feet MSL. The leading edge of the cloud was seven
miles south of Indian Springs at H+115 minutes where, at an
altitude of 5000 feet MSL, the reading was 1. 5 mR/hr. The
western edge of the cloud extended to approximately eight
miles west of Cactus Springs.
At H+139 minutes the U3-A mission was terminated because
of aircraft and instrument contamination and the plane landed
at Indian Springs Air Force Base. At 1130 PST, the same
crew took off from Indian Springs Air Force Base in a U6-A
aircraft with uncontaminated instruments. A zig-zag pattern
was flown between Highway 95 and the Charleston Range to-
ward Las Vegas. Readings from Indian Springs to the Lee
Canyon Road ranged between 0.6 mR/hr and 1.0 mR/hr. A
pass 800 feet above the terrain from the Lee Canyon Road
toward Angel's Peak showed levels of activity in the 0. 8 to
1.0 mR/hr range.
By the time the cloud had reached the Charleston Park turn-
off, readings from 0.6 to 0.4 mR/hr were obtained. Read-
ings taken on the west side of the Charleston Range indicated
that the cloud was confined to the Las Vegas Valley. Upon
entering the Las Vegas Valley at Red Rock Canyon at 1230
hours, readings increased to 0.6 mR/hr. This mission was
terminated at Las Vegas at 1330 hours.
At 1430 hours an Aero-Commander took off from Thunder -
bird Field in Las Vegas carrying a Precision Model 111
"Scintillator" for cloud detection. All readings were taken
at 5000 feet MSL. The first leg of the flight from Thunderbird
24
-------
Field to Blue Diamond was flown from 1430 to 1440 hours
with readings dropping from 0.016 mR/hr at Las Vegas to
0. 008 mR/hr over Blue Diamond and Red Rock Canyon.
Values of 0.016 mR/hr to 0.02 mR/hr were again encountered
about four miles west of Las Vegas at 1450 hours and these
values persisted to Sloan at 1455 hours. Normal background
existed from Sloan to Jean and to Highway 95 enroute to
Boulder City. From Highway 95 to Boulder City and from
Boulder1 City fifteen miles toward Searchlight, values of
0.016 to 0.025 mR/hr were observed. The southernmost
edge appeared to be fifteen miles south of Boulder City air-
port at 1515 hours. Background readings were observed
from that point to Searchlight over to Lake Mohave and up to
willow Beach (1535 hours). Levels slightly above background
were encountered halfway between Willow Beach and Boulder
City at 1540 hours, and from Boulder City to Eldorado Can-
yon at 1550 hours. Just south of the Eldorado Canyon Road,
background was observed. On the return flight from Eldor-
ado Canyon, readings dropped to background at 1600 hours
over Railroad Pass and background persisted over Las Vegas
to Thunderbird Field.
In summary, the western edge of the cloud appeared to be
three to four miles west of Las Vegas at 1440 hours and the
southwestern edge over Sloan at 1455 hours. At 1550 hours
the southern edge had reached Eldorado Canyon, but the
eastern edge had not passed the Colorado River by 1535 hours.
This delineation was drawn from readings barely discernible
above background and represent the greatest sensitivity which
could be attained with the instrumentation employed.
25
-------
c. Air
Only air samples taken at populated locations with gross beta
concentrations above normal background fluctuations, and/or
with fresh fission products on the charcoal cartridges are listed
in this report. Air sampler locations are shown in Figures 5
and 6 (pages 27 and 28). Results are shown in Table 4, (page 29).
d. Water
No contamination of water supplies used for human consumption
was detected as a result of the Pike Event. Water sampling
locations are shown in Figures 5 and 6.
e. Milk
In addition to the routine milk sampling program carried out
by the Off-site Surveillance Section, four hundred and fifty
milk samples were collected after the Pike Event. All the
milk samples that were collected and analyzed as a result of the
Pike release are reported in Tables 1 and 2 of the Appendix.
Milk sampling locations are shown in Figures 5 and 6.
No milk supplies from the commercial dairies sampled showed
detectable amounts of fresh fission products.
f. Film Badges
Film badges collected following the Pike Event showed no
exposures which could be attributed to the release. The
lower limit of these badges is 20 mR.
g. Dose Rate Recorders
Graphical representation of recorder charts from the two
stations in the cloud path is shown in Figure 7 (page 31).
26
-------
ts)
-J
TO
c
ft
en
M-
3
TO
O*
O
rt
!-••
3
CO
o
rt
3"
rt
p
3
3
S
HS
O
rt
(D
2
CD
(6
(0
3
rt
i
1
NEVADA] • \
A^ j A R 1 Z O N~A
FURNACC. /^ I
CREEK Jk nj-'f 1
DEATH €J\ fl*3\^tl
VAL . JCT. -X 1^*2^
SHOSHONE \ ( TEMPLE BAR
\ (
\ ) ^KINGMAN
N CHINO VALLEY
r A i i r \ *"<'EUP^ • OCOTTONWOOD
CALIF. \ ®PRESCOTT
V BAGDAD 9
\ 0WICKENBURG
/'APARKER
j AwENDEN
BLYTHEA &EHREN8URG ._ ^PHOENIX
BRAWLEYA j ATEMPE
^ABARO £GILA BEND
WINTERHAVEN^YUMA
/ ^^ •AJO
^'^w^ ^TUCSON
^^ •
r*'s
i
ALAS VEGAS 1
TUCUMCARlA I
1
i
1
ILUBBOCKA
a ^
1 TO DALLAS
AGILA ALAMOGORDOA ^^TMMWESTEM PIPEUNE
gr\SAN SIMON
CARLSBAD AMP AEUNICE
^ UIUITCC riTvill"l-OVING .
LAS CRUCESfl) WHITES CITYg^ J
_ -- - "' PECo's RIVER
^•S^ j lAEL PASO
•\. J j" ^.
N. 9 +~
^•^ TO AUSTIN
KEY
SHADED SEGMENTS
\
INDICATE
AIR xnpv MILK
WATER
-------
Figure 6. Sampling locations in Nevada for the Pike Event.
28
-------
Table 4. Results of ground station air samples collected following the Pike Event, March 13. 1964.
1. LOCATION DATA
STATION NAME
(Azimuth and Distance)
ARIZONA
Kingman
CALIFORNIA
Death Valley Jet.
Shoshone
NEVADA
Ash Meadows
Cactus Springs
On Hwy.95, 5 mi.W.
of Cactus Springs
Indian Springs
II. COLLECTION DATA
UJ
s3«-
-------
Table 4. Results of around station air samples collected following the Pike Event March 13. 1964(continuprH
1. LOCATION DATA
STATION NAME
(Azimuth and Distance)
NEVADA (cont)
Las Vegas
Lathrop Wells
Nye Co. Line & Hwy.95
(12 mi. W. of Cactus
Springs)
Pahrump
* The glass fiber filt
** Sampler failed afte
II. COLLECTION DATA
HI
si*-
<§5
155
210
263
421
254
1109
350
983
946
1293
2364
162
53
902
1201
er shov
r appro
SAMPLING PERIOD
BEGIN
Mo.
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
/ed
xirr
Day
13
13
13
13
14
14
15
15
13
14
15
16
13
13
13
14
the J
iatel
Time
1140
1450
1850
2355
0830
1400
1028
1725
0850
0710
1302
0605
0852
1245
1600
1156
'ollow
y one
END
Mo.
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
ing
hou
Day
13
13
13
14
14
15
15
16
14.
15
16
17
13
13
14
15
cone
r's
Time
1445
1845
2348
0827
1355
1023
1720
1513
0705
1300
0600
0615
1228
1503
1151
1310
:entra1
aperat
COLLECTOR
FC
FC
FC
FC
FC
FC
FC
FC
FC
FC
FC
F
FC
FC
FC
FC
:ion
ion
III. RADIOASSAY DATA (extrapolated to end of collection period)
Gross Betj
(filter
DATE -TIME
First Count
13-1457
13-2221
13-2350
14-0857
14-1403
15-1331
15-1735
16-1601
16-1044
15-1643
23-1459***
13-1516
13-1705
14-2216
15-1628
s (pCi/m3) '
Results ca
i Count
ACTIVITY
(pCi/m3)
14,000
680
59
32
24
13
35
14
7.2
15
8. 1
10,000
460
94
14
31I, 1000
.culated o
GAMMA PULSE HEIGHT ANALYSIS (cartridge)
DATE -TIME
First Count
13-1620
13-2100
13-2355
14-0857
14-1410
15-1145
15-2025
16-1735
16-1045
15-2000
13-1605
13-1830
14-2200
15-1920
133I, 35.01
n this basis
ACTIVITY
i 31 j 132I 133I 135I 132Te
ND ND 60 100 ND
ND ND 10 ND ND
ND ND 0.8 ND ND
ND ND 1.4 ND ND
ND ND 1 ND ND
ND ND 0.4 ND ND
ND ND TR ND ND
ND ND ND ND ND
ND ND TR ND ND
ND ND TR ND ND
SAMPLER MALFUNCTIONED
NO C ARTRIDGE
ND ND 75 160 ND
ND ND 5 10 ND
ND ND 1.4 ND ND
ND ND TR ND ND
30.
*** Sample delayed in transit.
ND= Not detected
TR=(Trace)= < 1 pCi/m3
F = Filter
C = Cartridge
-------
6.0-
5.0-
4.0—
3.0-
J2.0-
I
K
S
o
o
o
E
E
5 i.o-
0.5
GAMMA DOSE RATE VS TIME
AT THREE LOCATIONS — PIKE EVENT
CACTUS SPRINGS
E 500-B
INDIAN SPRINGS
RM- II
1000
1200 1400
MARCH 13
1600
1800
I
2000
I ' I ' I ' I ' I
2200 2400 0200 0400 0600
I MARCH 14
Figure 7. Gamma dose rate vs. time at three locations
following the Pike Event, 3/13/64.
31
-------
B. SUMMARY OF OPERATION NIBLICK
1. Air Sampling
Table 5 (page 33) shows the monthly averages of all permanent
air sampling stations in operation during this series. When more
than one sample was taken at a station during a 24 hour period,
the results were averaged over the entire 24 hour period. The
higher monthly average at Diablo during May was the result of
reactor test operations at the Nuclear Rocket Development Sta-
tion. The blank spaces in the table indicate that the sampling
station was iiot yet established.
2. Film Badges
Table 6 (page 34) contains a summary of film badge placement.
Analysis of film badge results indicates that no film badge expo-
sures above the 20 mR detection limit occurred as a result of
any one, or combination of, events during this test series. Film
badge locations are shown in Figure 8 (page 35).
3. Milk Sampling
Table 7 (page 36) lists all milk samples analyzed during the series
which contained fresh fission products, with the exception of those
samples taken as a part of a special study by the SWRHL Bioen-
vironmental Research Program following the Pike Event. The
results of all the raw milk samples collected as a part of this
study are listed in Table 2 of the Appendix. For a discussion of
these results consult "Dairy Farm Radioiodine Study following the
Pike Event" by Delbert S. Barth and Joel G. Veater, published
as SWRHL-14r and as AEC TID-21764.
The only milk samples with positive results were collected fol-
lowing the Pike Event. The samples collected in Arizona and
California with detectable concentrations of iodine isotopes, were
32
-------
Table 5. Monthly gross beta activity averages from all permanent: a.'.r sampling stations in
operation during Operation Niblick - activity in pCi/m3 .
LOCATION
JUL AUG SEP OCT NOV DEC JAN FEE MAR APR MAY JUN
Alamo, Nevada 5.35 2.11
Beatty, Nevada 9.72 2.45
Caliente, Nevada 5.64 1.61
Currant, Nevada 7.20 2.82
Death Valley Jet. ,
California 7.93 3.76
Diablo, Nevada 7.07 2.11
Ely, Nevada 5.62 4.06
Enterprise, Utah 1.57
Twin Spgs. , Nevada 5.37 1.85
Furnace Creek,
California 9.27 3.67
Goldfield, Nevada 8.58 2.86
Hiko, Nevada 4.45 1.72
Indian Spgs., Nev. 5.73 2.72
Las Vegas, Nevada 6.43 1.98
Lathrop Wells,
Nevada 7.01 4.15
Lund, Nevada 5.31 1.46
Mesquite, Nevada 5.51 1.54
Pahrump, Nevada 5.10 2.02
Pioche, Nevada 5.71 2.08
Shoshone, Calif.
St. George, Utah 5.11 1.41
Tonopah, Nevada 9.74 3.44
Warm Spgs. Ranch,
Nevada 6.45 1.83
Eureka, Nevada 7.40 2.77
Blue Jay, Nevada 6.93 2.08
Garrison, Utah 6.40 2.07
2.43 1.97 1.39 1.56
2.83 1.93 1.67 1.52
3.09 2.42 1.99 2.02
2.87 1.81 1.38 1.36
2.65 2.14 2.08 1.72
2.69 2.45 2.21 1.21
2.90 2.13 1.19 2.37
1.55 2.21 1.39 1.52
1.72 1.35 1.45 1.38
5.93 1.89 1.65 1.38
2.27 2.19 1.55 1.59
1.88 1.54 1.65 2.29
2.60 1.84 1.13 1.60
2.59 1.28 2.09 1.86
2.91 2.02 1. 18 2.42
2.07 1.59 .97 1.35
2.35 2.04 1.39 1.37
1.83 1.84 1.37 1.58
2.80 2.16 1.44 1.80
1.66
1.71 1.34 1.14 1.11
2.67 1.77 1.40 1.29
3.42 2.93 2.02 1.36
2.25 1.60 1.06 1.45
2.34 1.56 1.60 1.76
2.25 1.68 1.24 1.13
1.54 1.91 2.12 2.65 3.11 2.39
1.26 1.75 1.79 1.56 2.27 1.15
1.85 2.55 2.84 3.43 3.53 2.92
1.63 2.42 2.18 2.23 3.71 3.40
1.40 2.15 3.18 2.39 2.78 2.26
1.18 1.58 1.60 1.99 24.74 1.64
1.46 1.70 2.50 2.28 3.72 2.12
1. 55
.90
1.77
1.74
1.23
1.41
53
28
28
1.52
2. 18
1.34
2.29 2.76 3.29 2.29
1.43 1.60 2.52 1.87
1.25 2.46
1.55 2.01
1.66 2.19
2.20 2.91
2.18 2.69
2.50 4.31
3. 33
3.21
2.75
1.54 2.37 2220 2.64 6.57
2.41
2.17
2.93
2.46
2.25
4.75
89 2.61
1.92
1.76
2. 33
2.
2.54
2.43
2.23 2.19
2. 35
2.48
2.20
2.23
2.69 3
2. 50 2
1.49
2.97
3. 33
3. 25
2.79
2.23
3.82
29
3. 34
3. 33
1. 24 1. 69
1.08 2.06
1.93 2.05
1.05 1.62
2. 18
1.98
2.19
2.22
2.78
2.20
1.97
2. 10
1.74 2.10 63.0 4.36 3.62 2.91
3.71
2. 15
1.73
1.83
2. 14
1.63
2.44
1.91
3.01 2.79 1.79
2.44 3.09 2.35
2.50 3.42 2.16
2.49 3.16 2.18
-------
OJ
Table 5. Monthly gross beta activity averages from all permanent air sampling stations in
operation during Operation Niblick - activity in pCi/m3 . (Continued)
LOCATION
JUL AUG SEP OCT NOV DEC JAN FEE MAR APR MAY JUN
Parowan, Utah
Kanarraville, Utah
Sunnyside, Nevada
Lida, Nevada
Round Mtn.,.Nevada
Milford, Utah
Kingman, Arizona
Austin, Nevada
1.43 1.35 1.82 1.65 1.69 2.25 1.53
1.98 1.38 1.74 1.72 2.18 2.82 2.53
1.67 1.76 2.28 1.64 2.90 1.79
1.66 2.50 2.06 2.65 3.18 1.73
2.01 2.39 2.87 2.50 3.08 2.45
2.13 1.73 2.26 2.45 2.01
2.38 2.81 2.69 1.94
2.36 2.84 2.17
^Sampler not operating
Table 6. Summary of monthly film badge placements.
Average No. of Average No. of Average No. of
Individuals Badged Single Badge Stations Five Badge Stations
140
13
56
-------
O Film badge station
only
Film badge station and
Individuals
Individual or individ-
uals only
Note: more than one
person is film badged at
most locations.
Figure 8. Routine film badge placement locations.
35
-------
Table 7. Milk samples collected during Operation Niblick showing the presence of fresh fission
products (not including two Las Vegas farms).
COLLECTION DATA
LOCATION
Yuma, Arizona
Yuma, Arizona
Yuma, Arizona
Yuma, Arizona
Yuma, Arizona
Yuma, Arizona
Yuma, Arizona
Yuma, Arizona
Bard, California
Blythe, California
Blythe, California
Winterhaven, California
Winterhaven, California
Winterhaven, California
Winterhaven, California
Winterhaven, California
DATE
COLLECTED
3/26/64
3/17/64
3/18/64
3/21/64
3/22/64
3/24/64
3/25/64
3/28/64
3/26/64
3/21/64
3/22/64
3/23/64
3/25/64
3/26/64
3/27/64
3/28/64
DATE
ANALYZED
3/30/64
3/17/64
3/18/64
3/25/64
3/24/64
3/25/64
3/26/64
4/01/64
3/30/64
3/25/64
3/24/64
3/24/64
3/26/64
3/30/64
3/30/64
4/01/64
RADIOCHEMICAL DATA
ACTIVITY (pCi/l)at time of collection
131J- 133l 137Cs 89Sr 90Sr
30 ND 10
30 ND 10
50 ND 15 54
80 ND 20 ND 2
60 ND 15 ND 4
40 ND ND ND 2
40 ND ND ND 2
30 ND ND
50 ND 20
30 ND ND ND 3
20 ND ND ND 2
20 ND 25 ND 3
40 ND 20 ND 2
50 ND 20
20 ND 25 ND 4
80 ND 35 ND 4
3DNCENTRATION<»n/l]
Ca
1. 17
1. 18
1. 15
1. 18
1. 18
1.42
1.58
1.16
1. 14
1.20
1. 20
u>
ND = Not detected
-------
from farms. No commercial dairy samples showed detectable
amounts of fresh fission products. Complete tabulations of all
milk samples collected and analyzed during Operation Niblick are
shown in the Appendix to this report.
4. Water Sampling
Water samples from surface and sub-surface supplies were col-
lected and analyzed during the operation. No contamination of
water used for human consumption occurred as a result of any one
or combination of events of Operation Niblick.
5. Vegetation Sampling
Vegetation samples were collected only after the two previously
mentioned events. The results from vegetation sampling are used
to determine the presence of fresh fission products in order to
delineate cloud passage and to indicate possible areas for more
intensive sampling of other elements of the environment. Since
vegetation sample results include so many parameters, they are
not used to assess exposure to people or animals in the off-site
area.
37
-------
Chapter 4
DISCUSSION AND CONCLUSIONS
A. EXTERNAL EXPOSURES
The only event of the Operation Niblick series that produced off-site
radiation levels that were detectable on portable instruments was Pike.
Using the formula 5 x dose rate x hours since detonation, the infinite
dose rate can be calculated for a given location. This calculation is
made using the peak net gamma measurement on the day of the event.
The calculated infinite dose rate for Cactus Springs would be 85 mR,
at Indian Springs 25 mR, and 9 mR at Las Vegas. These values may
be compared with the 150-200 mR annual exposure from natural back-
ground radiation.
B. AIR SAMPLING
Radioiodine concentrations in air as determined by air sampling oper-
ations, represented only a small percentage of the allowable exposure
for populations as defined by the AEC.
C. MILK SAMPLING
The only radioiodine concentrations detected in milk supplies occurred
after the Pike Event. All Las Vegas commercial dairies were sam-
pled daily and no radioiodine was detected. Other than those samples
taken for a special study in Las Vegas, Nevada, concentrations of l 31I
were found only at Yuma, Arizona and at Bard, Blythe, and Winter-
haven, California. The concentrations found at these locations were
well below the maximum permissible levels established by the AEC.
38
-------
D. WATER SAMPLING
Water samples from potable and nonpotable supplies were sampled in
the downwind areas. No contamination of water used for human con-
sumption was detected.
E. CONCLUSION
Operation Niblick resulted in the addition of relatively minor amounts
of radioisotopes into the off-site area. These amounts were well below
presently accepted maximum permissible exposures as defined by the
AEC Manual, Chapter 0524.
39
-------
APPENDIX
Table 1.
Table 2.
Table 3.
Results of milk samples collected following the Pike
Event (activity extrapolated to time of collection). A- 1
Results of raw milk samples collected following the
Pike Event (activity extrapolated to time of collection). A-21
Results of routine milk sampling - July 1963 through
June 1964.
A-33
Note 1. The numbers and letters in the ID columns in Tables 1 and 2
are identification codes assigned by SWRHL.
Note 2. In Table 2, the abbreviation G CH indicates that the cow was
being fed freshly cut green feed (green chop). The abbrevi-
ation D FD indicates that the cow was on dry feed. The milk
samples in Table 2 were collected for a special investigation
by the Bioenvironmental Research Program (see page 32).
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection).
LOCATION ID
AJO ARIZ F
AJO ARIZ F
AJO ARIZ F
AJO ARIZ F
BUCKEYE ARIZ F
BUCKEYE ARIZ F
BUCKEYE ARIZ F
BAGDAD ARIZ F
BAGDAD ARIZ F
BAGDAD ARIZ F
BAGDAD ARIZ F
BAGDAD ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
COTTONWOOD ARIZ F
COTTONWOOD ARIZ F
COTTONWOOD ARIZ F
EHRENBERG ARIZ F
EHRENBERG ARIZ F
EHRENBERG ARIZ F
EHRENBERG ARIZ F
DATE
COLL
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
17
18
18
19
16
17
18
17
18
19
20
21
14
15
15
16
16
17
17
18
19
19
20
17
18
19
15
16
17
18
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
19
18
21
21
17
19
21
19
21
21
21
21
16
18
18
18
18
17
18
19
19
23
23
18
19
21
16
16
18
19
I
131
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
PC/L
I
133
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
CS
137
30
25
25
25
20
25
30
30
25
25
15
15
95
40
40
40
40
50
50
50
40
40
40
20
20
15
55
15
35
10
-------
Table 1, Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
LOCATION
EHRENBERG ARIZ
EHRENBERG ARIZ
KINGMAN
KINGMAN
K I NGMAN
KINGMAN
KI NGMAN
KINGMAN
KINGMAN
K I NGMAN
PARKER
PARKER
PARKER
PARKER
PARKER
PARKER
PARKER
PHOENIX
PHOENIX
PHOENIX
PHOENIX
PHOENIX
PHOENIX
PHOENIX
PHOENIX
PHOENIX
PHOEN I X
PHOENIX
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ID
F
F
D
D
D
D
D
D
D
D
F
F
F
F
F
F
F
D01
D01
D01
D01
D01
D01
D01
DO I
F02
F02
F02
DATE
COLL
03 19
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
20
14
15
16
17
18
19
20
21
16
17
18
19
20
21
22
14
15
16
17
18
19
20
26
17
18
19
DATE
COUNT
03 20
03 22
03 15
03 15
03 17
03 18
03 19
03 20
03 25
03 23
03 16
03 18
03 19
03 20
03 21
03 25
03 23
03 14
03 17
03 17
03 17
03 18
03 21
03 21
03 31
03 17
03 19
03 20
I
131
ND
ND
ND
ND
NO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PC/L
I
133
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
CS
137
30
20
30
35
25
30
25
20
20
35
65
55
50
40
50
45
55
25
20
20
20
20
40
25
20
30
25
70
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
DATE
LOCATION
PHOENIX ARIZ
PHOENIX ARIZ
PHOENIX ARIZ
PHOENIX ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TUCSON ARIZ
TUCSON ARIZ
TUCSON ARIZ
TUCSON ARIZ
TUCSON ARIZ
TUCSON ARIZ
TUCSON ARIZ
TUCSON ARIZ
ID
F03
F03
F03
F03
D02
D02
D02
D02
D02
DO 2
D02
D02
D03
D03
D03
D03
D03
D03
F01
FOI
F01
FOI
FOI
D
D
D
D
D
D
D
D
COLL
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
14
16
17
18
14
15
16
17
18
19
20
26
14
15
16
17
18
19
14
16
17
18
19
17
18
18
18
19
19
20
26
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
14
17
19
21
14
17
17
17
19
21
21
30
14
17
17
17
19
21
14
17
17
19
21
17
19
19
19
21
21
21
31
I
131
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
PC/L
I
133
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
CS
137
25
20
20
15
30
20
20
30
50
40
30
25
40
20
20
20
40
35
20
25
30
90
70
20
20
80
35
40
40
ND
ND
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
LOCATION ID
WENDEN ARIZ F
WICKENBURG ARIZ F
WIKIEUP ARIZ F
WIKIEUP ARIZ F
WIKIEUP ARIZ
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
ARIZ
F
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
DATE
COLL
03 18
03 19
03 17
03 20
03
03
03
03
03
03
03
03
03
03
03
03
04
03
03
03
03
03
03
03
03
03
03
04
21
16
18
19
21
22
23
24
25
26
27
30
02
17
18
19
21
22
23
24
25
27
28
01
DATE
COUNT
03 19
03 20
03 19
03 21
03 21
03 17
03 18
03 19
03 25
03 24
03 24
03 25
03 26
03 30
03 30
04 02
04 03
03 17
03 18
03 19
03 25
03 24
03 25
03 25
03 26
03 30
04 01
04 03
I
131
ND
NO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
30
ND
ND
ND
30
50
ND
80
60
ND
40
40
ND
30
ND
PC/L
I
133
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
CS
137
30
30
20
15
15
15
20
30
ND
15
20
ND
ND
10
5
15
10
10
15
20
20
15
ND
ND
ND
10
ND
5
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
LOCATION
BARD CAL
BARO CAL
BARD CAL
BARD CAL
BARD CAL
BARD CAL
BARD CAL
BARD CAL
BARD CAL
BARD CALIF
BLYTHE CAL
BLYTHE CAL
BLYTHE CAL
BLYTHE CAL
BLYTHE CAL
BLYTHE CAL
BLYTHE CAL
BLYTHE CAL
BLYTHE CAL
BRAWLY CAL
IND10 CAL
WINTERHAVEN CAL
WINTERHAVEN CAL
WINTERHAVEN CAL
WINTERHAVEN CAL
WINTERHAVEN CAL
WINTERHAVEN CAL
WINTERHAVEN CAL
WINTERHAVEN CAL
DATE
ID
F
F
F
F
F
F
F
F
F
F
F01
F01
F01
F01
F01
F01
F01
F01
F02
D
F
F
F
F
F
F
F
F
F
COLL
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
19
19
20
21
22
23
24
25
26
28
16
17
18
19
20
21
22
24
26
18
19
21
22
23
24
25
26
27
28
DATE
COUNT
03
03
03
03
03
03
03
03
03
04
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
04
20
20
25
25
24
24
25
26
30
01
16
18
19
20
21
25
24
25
30
19
20
25
24
24
25
26
30
30
01
I
131
ND
ND
ND
ND
ND
ND
ND
ND
50
ND
ND
ND
ND
ND
ND
30
20
ND
ND
ND
ND
ND
ND
20
ND
40
50
20
80
PC/L
I
133
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
CS
137
40
20
10
25
15
10
15
5
20
20
ND
25
35
20
20
ND
ND
NO
15
15
20
15
20
25
20
20
20
25
35
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
DATE
LOCATION
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VE6AS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VE6AS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
ID
D03
003
D03
D03
D03
003
003
003
003
003
003
003
D03
D04
004
004
004
004
004
004
004
004
004
004
004
004
DOS
006
COLL
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
16
17
17
18
18
19
20
21
22
23
24
25
26
16
17
17
18
19
20
21
22
23
24
25
26
27
17
17
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
16
17
17
19
19
19
21
21
23
24
25
26
30
16
17
17
19
19
21
21
23
24
25
26
30
31
17
17
I
131
ND
ND
NO
NO
ND
ND
NO
ND
ND
ND
NO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
tv3
ND
ND
ND
ND
PC/L
I
133
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
CS
137
105
130
90
135
75
130
100
150
110
115
125
125
105
80
50
30
95
80
70
85
100
85
85
75
80
65
65
65
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
PC/L
DATE DATE I I CS
LOCATION ID COLL COUNT 131 133 137
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
wev
NEV
NEV
007
D07
D07
D07
D07
D07
D07
D07
D07
D07
007
DOS
03
03
03
03
03
03
03
03
03
03
03
03
16
18
16
17
19
20
21
23
25
26
27
17
03
03
03
03
03
03
03
03
03
03
03
03
16
19
16
17
19
21
21
24
26
30
31
17
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
90
105
95
90
90
80
80
80
75
75
75
130
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time cf collection), (continued)
LOCATION ID
LATHROP WLS NEV F
MOAPA NEV F
MOAPA NEV F
MOAPA NEV F
MOAPA NEV F
MOAPA NEV F
MOAPA NEV F
MOAPA NEV F
MOAPA NEV F
MOAPA NEV F
MOAPA NEV F
OVERTON NEV F
OVERTON NEV F
OVERTON NEV F
OVERTON NEV F
OVERTON NEV F
OVERTON NEV F
OVERTON NEV F
OVERTON NEV F
PAHRUMP NEV F
PAHRUMP NEV F
PAHRUMP NEV F
PAHRUMP NEV F
PAHRUHP NEV F
PAHRUMP NEV F
PAHRUMP NEV F
DATE
COLL
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
18
14
15
15
16
16
17
18
18
19
20
15
15
16
16
17
17
18
19
14
14
15
15
16
16
17
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
19
15
15
16
16
17
17
18
18
19
21
15
16
16
17
17
18
18
19
15
15
15
17
18
17
18
I
131
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
PC/L
I
133
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
CS
137
55
120
125
125
110
65
65
135
135
130
125
85
95
85
60
60
105
105
95
30
40
35
30
35
30
35
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
s.
LOCATION ID
ALAMOGORDO NMD
ALAMOGORDO N M D
ALAMOGORDO NMD
ALAMOGORDO NMD
ARTESIA N M D
ARTESIA N M D
ARTESIA N M D
ARTESIA N M D
CARLSBAD N M D
CARLSBAD N M D
CARLSBAD N M D
CARLSBAD N M D
CARLSBAD N M D
CARLSBAD N M D
CARLSBAD N M D
CARLSBAD N M D
CARLSBAD N M D
EUNICE N M D
EUNICE N M D
GILA N M D
GILA N M D
GILA N M D
LAS CRUCES NMD
LAS CRUCES N M D
LAS CRUCES NMD
LAS VEGAS N M D
LOVING N M D
ROSWELL N M D
DATE
COLL
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
16
18
19
20
16
18
19
20
13
16
17
17
18
19
19
20
24
17
19
16
18
19
17
18
20
18
13
16
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
04
03
18
18
20
21
17
19
20
21
16
17
18
18
19
19
20
21
30
16
21
17
19
22
18
20
21
19
08
18
I
131
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
PC/L
I
133
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
CS
137
80
40
40
70
40
65
50
40
45
45
40
45
50
60
60
45
30
105
40
20
55
55
45
40
40
125
145
70
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
LOCATION ID
ROSWELL N M D
ROSWELL MM D
ROSWELL N M D
ROSWELL KM D
TUCUMCARI ft M D
WHITES CITY N M D
WHITES CITY N M D
WHITES CITY N N D
WHITES CITY NMD
WHITES CITY K 8 D
WHITES CITY N N D
DATE
COLL
03
03
03
03
03
03
03
03
03
03
03
17
18
19
20
15
13
16
17
18
19
20
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
18
20
20
24
19
16
17
18
19
21
21
I
131
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PC/L
I
133
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
CS
137
70
65
60
75
65
95
65
70
65
80
75
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
PC/L
DATE DATE I I CS
LOCATION ID COLL COUNT 131 133 137
AUSTIN TEX
AUSTIN TEX
AUSTIN TEX
AUSTIN TEX
AUSTIN TEX
DALLAS TEX
DALLAS TEX
DALLAS TEX
DALLAS TEX
DALLAS TEX
DALLAS TEX
DALLAS TEX
DALLAS TEX
DALLAS TEX
DALLAS TEX
EL PASO TEX
EL PASO TEX
EL PASO TEX
EL PASO TEX
EL PASO TEX
LUBBOCK TEX
LUBBOCK TEX
LUBBOCK TEX
LUBBOCK TEX
D01
D01
D01
F02
F02
001
D01
D01
D01
D01
D01
D01
D01
D01
F02
D
D
D
D
D
D01
D01
D02
03
03
03
03
03
03
03
03
03
03
03
03
03
04
03
03
03
03
03
03
03
03
03
03
14
18
19
17
20
17
18
19
20
26
27
30
31
03
16
18
19
20
21
22
16
20
22
21
03
03
03
03
03
03
03
03
03
03
03
03
04
04
03
03
03
03
03
03
03
03
03
03
17
21
24
18
21
18
19
24
24
27
31
31
02
07
18
19
20
22
23
24
18
24
30
24
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
50
70
50
50
55
75
130
90
80
110
60
80
60
65
90
30
40
45
35
25
40
70
85
30
-------
Table 1. Results of milk samples collected following the Pike Event {activity extrapolated
to time of collection), (continued)
LOCATION ID
AJO ARIZ F
AJO ARIZ F
BUCKEYE ARIZ F
BUCKEYE ARIZ F
BAGDAD ARIZ F
BAGDAD ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARIZ F
CHINO VLLY ARFZ F
COTTONWOOD ARIZ F
COTTONWOOD ARIZ F
EHRENBERG ARIZ F
EHRENBERG ARIZ F
EHRENBERG ARIZ F
KINGMAN ARIZ D
KINGMAN ARIZ D
KINGMAN ARIZ D
KINGMAN ARIZ D
KINGMAN ARIZ . D
KINGMAN ARIZ D
KINGMAN ARIZ D
PARKER ARIZ F
PARKER ARIZ F
PARKER ARIZ F
PARKER ARIZ F
PARKER ARIZ F
DATE DATE
COLL COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
17
19
16
18
19
21
14
17
19
20
17
19
15
16
18
14
16
17
18
19
20
21
16
18
19
21
22
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
19
21
17
21
21
21
16
17
23
23
18
21
16
16
19
15
17
18
19
20
25
23
16
19
20
25
23
GR/L
CA
1.57
1«66
1»52
2ol5
1.10
1.09
Io22
Ic22
Io34
1.34
1.15
088
1»46
1*46
Io20
1.28
1.1*
1.22
1.23
1.23
1«25
Io22
Ie20
Iol7
1.17
1.34
1.34
PC/L
SR 89
ND
ND
ND
C.
**
ND
ND
ND
ND
. 5
5
ND
ND
ND
ND
ND
ND
ND
5
ND
5
ND
ND
ND
ND
ND
ND
5
PC/L
SR 90
5
1
4
6
3
3
7
8
7
7
1
ND
3
3
2
2
4
4
3
2
3
4
6
4
5
5
5
-------
Table 1. Results of milk samples collected following the Pike Event {activity extrapolated
to time of collection), (continued)
DATE
LOCATION
PHOENIX ARIZ
PHOENIX ARIZ
PHOENIX ARIZ
PHOENIX ARIZ
PHOENIX ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TEMPE ARIZ
TUCSON ARIZ
TUCSON ARIZ
TUCSON ARIZ
WENOEN ARIZ
WICKENBURG ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
YUMA ARIZ
ID
D01
D01
F02
F02
F03
D02
D02
D03
F01
F01
D
D
D
F
F
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F02
F02
F02
F02
COLL
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
04
03
03
03
03
20
26
18
19
18
19
26
18
14
19
17
18
26
18
19
16
18
19
21
22
23
24
25
27
30
02
17
18
19
21
DATE
COUNT
03
03
03
03
03
03
03
03
03
0-3
03
03
03
03
03
03
03
03
03
03
03
03
03
03
04
04
03
03
03
03
21
31
19
20
21
21
30
19
14
21
17
19
31
19
20
17
18
19
25
24
24
25
26
30
02
03
17
18
19
25
GR/L
CA
1.16
1.14
1.14
1.25
1.13
1.15
1.14
1.14
1.38
l-o 18
1«19
1.28
1.09
1.12
1.17
1.42
1.18
1.15
1.16
1.18
1.18
1.38
1.38
1.14
1.16
1.14
1.20
1.16
PC/L
SR 89
5
ND
ND
10
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
5
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
5
ND
ND
PC/L
SR 90
2
5
12
10
1
2
3
5
4
3
2
3
5
4
4
6
4
9
2
4
4
2
2
3
3
5
4
3
3
4
-------
Table 1. Results of milk samples collected following the Pike .Event (activity extrapolated
to time of collection), (continued)
DATE DATE GR/L PC/L PC/L
LOCATION ID COLL COUNT CA SR 89 SR 90
Iol5 ND 4
1*16 ND 4
Iel6 ND 4
1*16 ND 4
U20 ND 4
1.20 ND 4
i«20 ND 4
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
YUMA
AR
AR
AR
AR
AR
AR
AR
IZ
IT-
IT.
IZ
IZ
IZ
IZ
F02
F02
F02
F02
F02
F02
F02
03
03
03
03
03
03
04
22
23
24
25
27
28
01
. 03
03
03
03
03
04
04
24
25
25
26
30
01
03
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
DATE DATE GR/L PC/L PC/L
LOCATION ID COLL COUNT CA SR 89 SR 90
BARD CAL F 03 19 03 20 1.15 5 1
BARD CAL F 03 19 03 20 ' 1.16 ND 3
BARD CAL F 03 20 03 25 1.14 ND 2
BARD CAL F 03 21 03 25 1.14 ND 2
BARD CAL F 03 22 03 24 1.16 ND 3
BARD CAL F 03 23 03 24 1.15 ND 2
BARD CAL F 03 24 03 25 1.14 ND 2
BARD CAL F 03 25 03 26 1.14 ND 2
BARD CALIF F 03 28 04 01 1.20 ND 4
BLYTHE CAL FOl 03 16 03 16 1.36 ND 3
BLYTHE CAL FOl 03 19 03 20 1.33 ND 3
BLYTHE CAL FOI 03 21 03 25 1.42 ND 3
BLYTHE CAL FOl 03 22 03 24 1.58 ND 2
BLYTHE CAL FOl 03 24 03 25 1.42 ND 3
BRAWLY CAL D 03 18 03 19 1«22 5 3
INDIO CAL F 03 19 03 20 . ND ND
WINTERHAVEN CAL F 03 21 03 25 1.14 ND 2
WINTERHAVEN CAL F 03 22 03 24 1«,12 ND 2
WINTERHAVEN CAL F 03 23 03 24 1.16 ND 3
WINTERHAVEN CAL F 03 24 03 25 1.14 ND 2
WINTERHAVEN CAL F 03 25 03 26 1.14 ND 2
WINTERHAVEN CAL F 03 27 03 30 1.20 ND 4
WINTERHAVEN CAL F 03 28 04 01 1.20 ND 4
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
DATE DATE GR/L PC/L PC/L
LOCATION ID COLL COUNT CA SR 89 SR 90
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
D03
D03
D03
D03
DOS
D03
003
D03
D03
D04
D04
D04
D04
D04
D04
004
D04
D04
D04
D04
DO?
DO?
. DO?
DO?
DO?
DOT
DO?
DO?
DO?
D08
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
16
1?
18
19
21
22
23
25
26
16
1?
18
19
20
21
22
23
25
26
2?
16
18
19
20
21
23
25
26
2?
17
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
16
17
19
19
21
23
24
26
30
16
17
19
19
21
21
23
24
26
30
31
16
19
19
21
21
24
26
30
31
17
1«04
Iol8
1.20
1*25
la 10
Iol8
1.11
1.12
1.17
1.33
1.14
1*23
1»23
1.12
086
Io26
1. 14
Iol2
1.12
1.10
1*12
Io20
a
loOO
. o90
1.12
1.14
1.18
ND
5
ND
5
5
ND
5
5
ND
ND
5
5
ND
5
ND
ND
5
5
ND
ND
ND
5
5
5
ND
ND
5
ND
ND
14
18
12
15
14
15
13
14
19
12
11
15
14
11
10
15
10
9
14
II
13
13
11
8
13
11
9
13
12
18
-------
Table 1, Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
LOCATION
ID
MOAPA NEV F
MOAPA NEV F
OVERTON NEV F
OVERTON NEV F
PAHRUMP NEV F
PAHRUMP NEV F
PAHRUMP NEV F
DATE
COLL
03 15
03 16
03 15
03 16
03 14
03 15
03 16
DATE
COUNT
03 16
03 16
03 15
03 16
03 15
03 17
03 17
GR/L
CA
1.15
1.15
1.25
1.20
1.31
1.20
1.15
PC/L
SR 89
ND
NO
ND
ND
ND
ND
ND
PC/L
SR 90
16
16
11
11
3
3
4
-------
Table 1. Results of milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
DATE DATE GR/L PG/L PC/L
LOCATION ID COLL COUNT CA SR 89 SR 90
ALAMOGORDO NMD 03 is 03 is . 5 8
AuAMOGORDO NMD 03 19 03 20 1.46 5 7
ALAMOGORDO NMD 03 20 03 21 1.23 5 6
ARTESIA N M D 03 16 03 17 1.09 5 «•
ARTESIA N M D 03 18 03 19 1»12 ND 4-
ARTESIA N M D 03 19 03 20 1.11 ND 4
ARTESIA NMD 03 20 03 21 1.20 ND 16
CARLSBAD N M D 03 13 03 16 Iel8 ND 5
CARLSBAD N M D 03 16 03 17 1«12 ND 4
CARLSBAD N M D 03 17 03 18 1.28 5 4
CARLSBAD N M D 03 17 03 18 1*27 ND 4
CARLSBAD N M D 03 18 03 19 1<,22 ND 6
CARLSBAD N M D 03 19 03 20 1.17 ND 4
CARLSBAD N M D 03 20 03 21 1»2Q ND 5
EUNICE N M D 03 17 03 18 i«44 5 35
eUNlfCE N M D 03 19 03 21 1«36 5 36
GiLA N M D 03 16 03 17 1.18 ND 7
LAS CRUCES NMD 03 17 03 18 1028 ND 6
LAS CRUCES NMD 03 18 03 20 1.Z2 ND 7
LAS CRUCES NMD 03 20 03 21 1.23 5 4
LAS VEGAS NMD 03 18 03 19 1«36 5 15
LOVING N M D 03 13 04 08 1.33 ND 10
ROSWELL NMD 03 16 03 18 1*15 5 2
ROSWELL N M D 03 17 03 18 1.31 5 6
ROSWELL N M D 03 18 03 20 1.10 ND 6
ROSWELL NMD 03 19 03 20 1.21 5 7
ROSWELL N M D 03 20 03 24 Io02 ND 5
TUCUMCARI N M i' 03 15 03 19 . 10 12
-------
I
o
Table 1. Results of. milk samples collected following the Pike Event (activity extrapolated
to time of collection), (continued)
DATE DATE GR/L PC/L PC/L
LOCATION ID COLL COUNT CA SR 89 SR 90
WHITES CITY NMD 03 13 03 16 1.15 ND 10
WHITES CITY NMD 03 16 03 17 1.14 ND 7
WHITES CITY NMD 03 17 03 18 1.20 5 5
WHITES CITY NMD 03 18 03 19 1.07 5 4
WHITES CITY NMD 03 19 03 21 1.18 ND 5
WHITES CITY N M D 03 20 03 21 1.13 ND 5
-------
Table 1. Results of milk samples collected following the Pike Event, (activity extrapolated
to time of collection), (continued)
^ DATE DATE GR/L PC/L PC/L
LOCATION ID COLL COUNT CA SR 89 SR 90
AUSTIN TEX D01 03 14 03 17 1»14 5 li
AUSTIN TEX DOl 03 18 03 21 1.18 5 1-
AUSTIN TEX F02 03 17 03 18 1»25 ND 10
AUSTIN TEX F02 03 20 03 21 Ic23 5 1C
DALLAS TEX D01 03 17 03 18 1.25 HD 13
DALLAS TEX DOl 03 18 03 19 1,28 NO 18
DALLAS TEX DOl 03 19 03 24 1.18 5 17
DALLAS TEX DOl 03 20 03 24 1,23 ND 18
DALLAS TEX DOl 03 27 03 31 1,22 ND 15
DALLAS TEX DOl 03 30 03 31 1»22 ND 15
DALLAS TEX DOl 03 31 04 02 1*22 ND 15
DALLAS TEX DOl 04 03 04 07 le!8 ND 14
EL PASO TEX D 03 18 03 19 1.36 5 15
EL PASO TEX D 03 19 03 20 1.06 ND 4
EL PASO TEX D 03 21 03 23 1.06 ND 5
EL PASO TEX D 03 22 03 24 1.10 ND 5
LU8BOCK TEX D02 03 21 03 24 1.14 ND 13
LUBBOCK TEX DOl 03 22 03 30 1.15 ND 11
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection).
LOCATION
ID
DATE DATE
COLL. COUNT
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
> LAS
LAS
~ LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
D
D
D
D
D
D
G
D
G
D
D
G
G
D
G
D
G
D
D
G
D
G
D
G
D
G
G
D
D
G
FD
FD
FD
FD
FD
FO
CH
FD
CH
FD
FD
CH
CH
FD
CH
FD
CH
FD
FD
CH
FD
CH
FD
CH
FD
CH
CH
FD
FD
CH
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
15PM
16AM
16PM
17AM
17PM
18AM
18PM
18PM
19AM
19AM
19PM
19PM
20AM
20AM
20PM
20PM
21AM
21AM
21PM
21PM
22AM
22AM
22PM
22PM
23AM
23AM
23PM
23PM
24AM
24AM
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
15
16
16
17
17
18
18
18
19
19
19
19
20
20
21
21
21
21
22
22
22
22
23
23
23
23
24
24
24
24
I
131
30
70
70
50
ND
150
220
80
150
70
60
250
300
40
150
50
420
50
50
330
ND
290
ND
240
40
300
260
ND
ND
260
PC/L
I
133
200
100
65
30
ND
40
150
30
40
ND
ND
50
ND
ND
ND
ND
40
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
CS
137
70
70
120
85
45
80
80
70
70
70
85
85
75
65
60
40
70
70
90
60
65
90
70
55
35
110
55
70
75
70
-------
Table 2. Results of raw milk samples collected following f-.he Pike Event (activity
extrapolated to time of collection), (continued)
LOCATION
ID
DATE DATE
COLL. COUNT
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
D
G
D
G
G
D
G
D
G
D
G
D
G
D
G
D
G
D
G
D
D
G
G
D
G
D
G
D
G
D
FD
CH
FD
CH
CH
FO
CH
FD
CH
FD
CH
FD
CH
FD
CH
FD
CH
FD
CH
FD
FD
CH
CH
FD
CH
FD
CH
FD
CH
FD
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
24PM
24PM
25AM
25AM
25PM
25PM
26AM
26AM
26PM
26PM
27AM
27AM
27PM
27PM
28AM
28AM
28PM
28PM
29AM
29AM
29PM
29PM
30AM
30AM
30PM
30PM
31AM
31AM
31PM
31PM
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
04
04
25
25
25
25
26
26
26
26
27
27
27
27
29
30
30
30
29
30
29
30
30
30
30
30
31
31
31
31
01
01
I
131
30
180
ND
170
150
ND
120
30
110
ND
110
40
80
50
60
40
80
ND
120
30
ND
110
110
30
80
40
70
ND
30
30
PC/L
I
133
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
CS
137
70
55
85
60
40
75
50
75
25
70
50
70
30
80
30
90
30
60
40
55
60
35
35
45
30
55
40
50
45
55
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection), (continued)
PC/L
DATE DATE I I
LOCATION ID COLL. COUNT 131 133
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
G
D
G
D
G
D
D
G
D
G
G
G
D
D
G
G
D
D
D
G
G
D
G
D
G
D
D
G
6
D
CH
FD
CH
FD
CH
FD
FD
CH
FD
CH
CH
CH
FD
FD
CH
CH
FD
FD
FD
CH
CH
FD
CH
FD
CH
FD
FD
CH
CH
FD
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
OlAM
01AM
01PM
01PM
02AM
02AM
02PM
02PM
03AM
03AM
03PM
04AM
04AM
04PM
04PM
05AM
05AM
05PM
05PM
05PM
06AM
06AM
06PM
06PM
07AM
07AM
07PM
07PM
08AM
08AM
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
01
01
02
02
02
02
03
03
03
03
06
06
06
06
06
06
06
06
07
07
07
07
08
08
08
08
09
09
09
09
ND
ND
ND
ND
ND
ND
ND
30
30
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
CS
137
75
80
60
60
45
70
40
80
80
60
25
40
70
65
55
45
55
85
60
45
30
55
50
50
50
65
70
45
55
65
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection), (continued)
LOCATION
ID
DATE DATE
COLL. COUNT
LAS
LAS
LAS
LAS
LAS
LAS
LAS
L.AS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
F01
FOI
F01
FOI
FOI
F01
FOI
FOi
FOI
FOI
FOI
G
D
G
D
G
D
G
D
G
G
G
CH
FD
CH
FD
CH
FD
CH
FD
CH
CH
CH
04
04
04
04
04
04
04
04
04
04
04
08PM
08PM
09AM
09AM
09PM
09PM
10AM
10AM
13AM
15
17AM
04
04
04
04
04
04
04
04
04
04
04
09
09
09
09
13
13
13
13
14
16
20
131
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PC/L
I
133
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
CS
137
55
65
60
50
70
55
55
50
55
65
75
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection, (continued)
LOCATION
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
DATE
ID
F01
F01
F01
F01
F01
F01
F01
F01
F01
FOl
F01
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
COLL.
D
D
D
D
D
6
D
6
D
D
G
G
D
G
D
G
D
D
G
D
G
D
G
D
G
G
D
D
FD
FD
FD
FD
FD
CH
FD
CH
FD
FD
CH
CH
FD
CH
FD
CH
FD
FD
CH
FD
CH
FD
CH
FD
CH
CH
FD
FD
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
15PM
16AM
17AM
17PM
18AM
18PM
18PM
19AM
19AM
19PM
19PM
20AM
20AM
20PM
20PM
21AM
21AM
21PM
21PM
22AM
22AM
22PM
22PM
23AM
23AM
23PM
23PM
24AM
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
15
16
17
17
18
18
18
19
19
19
19
20
20
21
21
21
21
22
22
22
22
23
23
23
23
24
24
24
GR/L
CA
1.12
1.16
1.18
1.14
1.33
1.31
1.36
1.46
1.22
1.41
1.22
1.09
.96
1.11
1.13
.98
1.00
1.01
1.46
1.35
1.46
1.10
1.20
1.01
1.18
1.04
.96
.98
PC/L
SR 89
10
5
ND
ND
5
ND
ND
ND
ND
ND
5
5
ND
5
ND
5
ND
5
ND
ND
ND
5
ND
ND
ND
ND
ND
ND
PC/L
SR 90
9
8
10
8
7
5
7
4
6
4
3
4
5
2
6
1
4
2
6
3
6
4
4
5
3
4
6
4
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection), (continued)
LOCATION
ID
DATE DATE
COLL. COUNT
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
F01
F01
FOl
F01
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
FOl
G
D
G
D
G
G
D
G
D
G
D
G
D
G
D
G
G
D
G
D
G
D
G
D
G
CH
FD
CH
FD
CH
CH
FD
CH
FD
CH
FD
CH
FD
CH
FD
CH
CH
FD
CH
FD
CH
FD
CH
FD
CH
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
04
24AM
24PM
24PM
25AM
25AM
25PM
25PM
26AM
26AM
26PM
26PM
27AM
27AM
27PM
27PM
28AM
28PM
28AM
29AM
29AM
30PM
30PM
31AM
31AM
01PM
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
04
24
25
25
25
25
26
26
26
26
27
27
27
27
29
30
30
29
30
29
30
31
31
31
31
02
GR/L
CA
1.34
1.18
.78
1.01
1.09
1.27
1.12
1.34
1.25
1.10
.92
1.28
1.47
1.34
1.28
1.44
1.36
1.49
1.30
1.07
1.30
1.07
1.22
PC/L
SR 89
ND
ND
ND
5
ND
ND
ND
ND
5
ND
ND
ND
10
5
ND
ND
ND
5
ND
5
5
ND
5
ND
ND
PC/L
SR 90
3
4
4
6
62
3
4
2
6
4
5
2
10
2
6
2
2
4
3
5
3
4
3
4
3
-------
Table 2. Results of raw milk samples collected following the Pike Event {activity
extrapolated to time of collection), (continued)
LOCATION
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
10
DATE DATE
COLL. COUNT
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
F01
D
G
D
G
D
G
G
D
G
D
G
G
D
G
D
G
D
G
G
G
FD
CH
FD
CH
FD
CH
CH
FD
CH
FD
CH
CH
FD
CH
FD
CH
FD
CH
CH
CH
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
01PM
02AM
02AM
03PM
04PM
04PM
04AM
05PM
05AM
05AM
07AM
08PM
08PM
09PM
09PM
10AM
10AM
13AM
15
17AM
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
02
02
02
06
06
06
06
06
06
06
08
09
09
13
13
13
13
14
16
20
GR/L
CA
PC/L
SR 89
1.05
1.22
1.05
1«06
1.14
1.11
1.11
1.14
1.06
.92
1.31
1.22
1.26
1.22
1.10
1.25
1.18
1.20
1.12
ND
ND
ND
ND
ND
ND
ND
ND
ND
SMPLE
ND
5
ND
5
ND
ND
ND
ND
ND
5
PC/L
SR 90
3
3
3
3
7
5
5
7
3
LOST
6
3
4
5
3
5
5
5
6
4
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection), (continued)
I
tv
CD
LOCATION
ID
DATE DATE
COLL. COUNT
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
D
D
D
D
D
D
G
D
D
G
G
G
D
G
D
D
G
G
D
G
D
G
D
D
G
D
G
D
FD
FD
FD
FD
FD
FD
CH
FD
FD
CH
CH
CH
FD
CH
FD
FD
CH
CH
FD
CH
FD
CH
FD
FD
CH
FD
CH
FD
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
15AM
15AM
15PM
16AM
16PM
17AM
17PM
17PM
18AM
18AM
18PM
18PM
18PM
I9AM
19AM
19PM
19PM
20AM
20AM
20PM
20PM
21AM
21AM
21PM
21PM
22AM
22AM
22PM
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
15
15
15
16
17
17
18
18
18
18
18
18
18
19
19
20
20
20
20
21
21
21
21
22
22
22
22
23
I
131
ND
ND
ND
ND
ND
ND
ND
40
ND
40
50
50
ND
ND
ND
40
40
60
40
70
ND
60
30
30
60
ND
ND
ND
PC/L
I
133
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
10
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
CS
137
45
50
45
55
35
45
50
50
55
50
50
50
60
60
50
55
50
45
45
60
20
55
50
50
35
50
35
45
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection), (continued)
LOCATION
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
LAS VEGAS NEV
DATE
ID
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
COLL.
G
D
G
G
D
D
G
G
0
G
D
G
D
G
D
D
G
D
G
D
G
G
D
G
G
G
D
G
CH
FO
CH
CH
FD
FD
CH
CH
FD
CH
FD
CH
FD
CH
FD
FD
CH
FD
CH
FD
CH
CH
FD
CH
CH
CH
FD
CH
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
22PM
23AM
23AM
23PM
23PM
24AM
24AM
24PM
24PM
25AM
25AM
25PM
25PM
26AM
26AM
26PM
26PM
27AM
27AM
27PM
27PM
28AM
28PM
28PM
29AM
29PM
29PM
30AM
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
23
23
23
24
24
24
24
25
25
25
25
26
26
26
26
27
27
27
27
30
29
29
30
29
29
31
30
31
I
131
30
ND
50
ND
ND
ND
ND
30
ND
30
ND
40
ND
ND
ND
ND
ND
ND
40
ND
50
ND
ND
ND
ND
ND
ND
ND
PC/L
I
133
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
CS
137
45
35
45
50
55
45
40
45
35
45
35
50
40
45
40
40
45
35
50
35
40
45
45
45
40
35
35
40
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection), (continued)
DATE
LOCATION
L-AS
VEGAS
LAS^EGAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
ID
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
COLL.
G
D
G
0
D
D
D
G
G
G
G
G
G
G
G
G
G
G
CH
FD
CH
FD
FD
FD
FD
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
CH
03
03
03
03
03
04
04
04
04
04
04
04
04
04
04
04
04
04
30PM
30PM
31AM
31AM
31PM
01AM
02AM
03AM
04AM
05AM
06AM
07AM
08AM
09AM
10AM
13AM
15AM
17AM
DATE
COUNT
03
03
03
03
04
04
04
04
04
04
04
04
04
04
04
04
04
04
31
31
31
31
01
01
03
03
06
06
07
08
09
10
15
14
16
20
I
131
30
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PC/L
I
133
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
CS
137
40
35
35
35
45
50
55
35
40
30
35
50
45
40
25
45
35
75
-------
Table 2. Results of raw milk samples collected following the Pike Event (activity
extrapolated to time of collection), (continued)
LOCATION
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
N£V
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
ID
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
F02
DA
TE
COLL.
D
D
D
D
G
D
D
G
G
D
G
G
D
D
G
D
G
D
G
D
G
D
G
D
G
D
G
G
D
FD
FD
FD
FD
CH
FD
FD
CH
CH
FD
CH
CH
FD
FD
CH
FD
CH
FD
CH
FO
CH
FD
CH
FD
CH
FD
CH
CH
FD
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03-
03
03
03
15AM
16AM
16PM
17AM
17PM
17PM
18AM
18AM
18PM
18PM
19AM
19PM
19AM
19PM
20AM
20AM
20PM
20PM
21AM
21PM
21PM
22AM
22AM
22PM
22PM
23AM
23AM
23PM
23PM
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
15
16
17
17
18
18
18
18
18
18
19
20
20
19
20
20
21
21
21
22
22
22
22
23
23
23
23
24
24
GR/L
CA
1.60
1.36
1.36
1.40
1.62
1.38
1.58
1.62
1.47
1.60
1.30
1.41
1.50
1.57
1.39
1.25
1.54
1.47
1.56
1.60
1.46
i.61
1.53
1.71
1.54
1.56
1.38
1.65
1.59
PC/L
SR 89
ND
NO
ND
ND
ND
5
ND
ND
ND
5
ND
ND
ND
ND
5
ND
ND
ND
ND
ND
ND
ND
ND
5
ND
ND
ND
ND
5
PC/L
SR 90
7
18
11
11
6
9
11
6
3
6
5
3
6
6
3
3
5
4
6
6
6
7
6
5
6
6
5
7
6
-------
Table, i,
KbSulLs of. «. aw rn;li< samples collected following rh-c. 1
«.. xf r apol a::-.j,'.'i (:•:.• i:ime oi i:ol lecl i.jn) . (corl!.!
DATE
LOCATION
LAS
1. AS
LAS
L.AS
...AS
LAS
LAS
i_AS
LAS
LAS
L AS
LAS
LAS
LAS
i.AS
LAS
t.AS
LAS
LAS
LAS
i..AS
LAS
LAS
LAS
LAS
LAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
VEGAS
Vt'GAS
VEGAS
VEGAS
VEGAS
VEGAS
VE-.GAS
VEGAS
VEGAS
y tGAS
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
NEV
N£V
NEV
NEV
NtV
NEV
NKV
NEV
ID
F02
F02
F0.2
F02
F02
F02
E02
F02
F02
F02
F02
F02
F02
F02
F0;>
F02
FO;?
F02
F02
F02
F02
F02
F02
F 0 ;•:
F02
f 0.-
COLLo
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
OM
0<+
0^
OH
0-4
Oi+
0^
24AM
24AM
24PM
24PM
25AM
25PM
25PM
26AM
26AM
26PM
26PM
27AM
27AM
28PM
30AM
30PM
30PM
31AM
31AM
02AM
04AM
05AM
10AM
13AM
15AM
V/AM
DATE
COUNT
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
03
04
04
04
Oi*
04
04
OH
24
24
25
25
25
26
26
26
26
27
27
27
27
29
31
31
31
31
31
03
06
06
15
14
16
20
GR/
L
CA
1 a
1.
1.
IB
:u
I.
io
lo
lo
lo
lo
lo
1«
lo
1 «
io
1.
lo
lo
o
lo
lo
•u
lo
i o
:u
48
50
49
46
47
49
50
59
53
58
59
46
49
54
42
42
28
52
28
26
28
71
36
59
PC./L
SR 39
ND
ND
U
-*
NO
ND
5
ND
ND
ND
ND
ND
ND
5
5
5
b
ND
ND
NO
ND
(,
-*
•'f
!y 0
.j
i-(
V C-
PC/i.
SR 90
s
5
't
t.
/
3
15
5
'5
c.
^
1 A
6
4
i-.
12
12
'7
7
/'
";
^0
20
10
5
I.*.
8
-------
'Table 3. Results of routine milk sampling - July 1963 through June 1964.
Location
NEVADA
Adaven
Simpson
Alamo
Stewart
Battle Mountain
Caliente
Young
Currant
Blue Eagle Ranch
Date
Collected
7/09/63
8/09/63
4/16/64
7/08/63
8/20/63
11/19/63
12/10/63
1/27/64
3/03/64
3/30/64
4/29/64
8/21/63
7/09/63
8/21/63
10/03/63
11/20/63
12/11/63
1/28-/64
3/05/64
3/30/64
4/29/64
7/11/63
8/22/63
Activity
(pCi/1)
131j
<20
50
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
too
<20
<20
137., 140
Cs Ba-La
140 <10
295 <10
370 <10
65 <10
60 <10
40 <10
20 <10
50 <10
120 <10
130 <10
180 <10
85 <10
55 <10
60 <10
50 <10
50 <10
35 <10
65 <10
75 <10
85 <10
sour to analyze
315 <10
130 <10
Sr
20
45
20
25
15
5
<5
<5
5
8
10
5
25
10
5
5
<5
5
<5
<5
70
20
90
br
12
31
29
7
6
6
9
8
17
21
19
6
7
3
4
11
8
10
10
27
24
10
Concenti
(gm
Ca
1. 38
1.15
1.46
. 87
1. 14
1. 22
1. 25
1. 13
1. 20
1. 23
1.22
1. 25
1. 13
1. 15
1. 17
1. 32
1. 21
1. 11
1.46
1. 62
1. 30
1. 34
•at ions
/I)
K
1.4
1. 5
1.4
1.9
1. 7
1.6
1. 0
1. 5
1.4
1. 3
1. 7
1. 5
1. 5
1.6
1. 9
1. 9
1. 5
1. 5
1. 7
0.9
1. 1
1. 8
A-33
-------
'Fable 3. Results of routine mi'lk sampling - July 1963 through June 1964.
Location
NEVADA (cont1)
Currant(cont')
Blue Eagle Ranch(cont')
Duckwater
Halstead
Elgin
Eureka
Fish Creek Ranch
Hiko
Hanson
Date
Collected
9/20/63
10/15/63
11/15/63
11/21/63
1/24/64
2/19/64
4/02/64
8/20/63
10/.15/63
11/14/63
11/20/63
1/23/64
1/23/64
2/19/64
7/10/63
7/09/63
8/20/63
9/18/63
10/14/63
11/14/63
2/04/64
3/05/64
4/01/64
7/10/63
8/21/63
Activity
(pCi/1)
131j
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
137
Cs
115
138
295
260
375
310
455
115
305
290
305
100
340
365
90
350
390
145
245
350
150
305
210
85
65
140^ T 890
Ba-La or
<10 20
<10 10
<10 20
<10 15
<10 10
<10 5
<10 15
<10 20
<10
<10 20
<10 25
<10 <5
<10 5
<10 5
<10 105
< 1 0 95
<10 70
<10 20
<10 15
<10 20
< 1 0 < 5
-------
J> . Kesiuls oi routine mijiv
g ~ juiy
uirougii June 1
Location
NEVADA (cont1)
Hiko(cont')
Hanson(cont' )
lone
Las Vegas
Anderson Dairy
Arden Dairy
Date
Collected
10/01/63
11/20/63
12/10/63
1/27/64
3/03/64
3/30/64
4/29/64
10/23/63
7/15/63
8/15/63
9/17/63
10/18/63
11/14/63
12/16/63
1/16/64
2/24/64
3/11/64
4/17/64
6/23/64
8/15/63
9/17/63
10/18/63
1*1/14/63
12/16/63
1/16/64
2/24/64
3/11/64
4/17/64
6/23/64
Activity
(pCi/1)
131I
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
137
Cs
50
55
100
60
45
60
90
70
110
140
80
100
115
95
110
130
115
110
65
40
35
45
55
45
70
70
100
95
65
140 89_
Ba-La or
<10 10
'<10 <5
<10 5
<10 <5
<10 5
<10 <5
<10 5
<10 5
<10 35
<10 25
<10 15
<10 10
<10 5
<10 5
<10 5
<10 5
<10 8
<10 10
<10 5
<10 5
<10 <5
<10 35
<10 5
<10 <5
<10 5
<10 5
<10 5
<10 <5
<10 <5
90
Sr
7
8
9
7
7
10
11
17
13
16
11
1
12
13
15
19
15
12
8
4
5
5
8
35
13
19
14
11
6
Concentrations
(Rm/1)
Ca
1. 13
1. 32
1. 26
1. 16
1. 20
1. 37
1. 16
1. 32
1. 16
1. 15
1. 11
1. 09
1. 23
1. 15
1. 24
1. 14
1. 16
1. 20
1. 15
1. 14
1.11
1. 18
1. 14
1. 13
1. 22
1. 17
1. 14
1. 20
1. 17
K
1.6
1.4
1. 5
1. 5
1. 3
1. 5
1. 5
1.4
1.6
1. 5
1.8
1. 8
1. 7
1.4
1. 7
1. 6
1.4
1.6
1. 5
1. 7
1. 7
1. 7
1. 6
1. 7
1.6
1.6
1.6
1. 8
1. 5
A-35
-------
Table 3. Results of routine milk sampling - July 1963 through June J964.
Location
NEVADA(cont')
Las Vegas(cont')
Bliss Dairy
Hiland Dairy
Hinie's Dairy
Date
Collected
7/15/63
8/15/63
9/17/63
10/18/63
11/14/63
12/16/63
1/16/64
3/11/64
4/02/64
4/17/64
6/23/64
2/24/64
3/11/64
4/02/64
4/17/64
6/23/64
7/15/63
8/15/63
9/17/63
10/18/63
11/14/63
12/16/63
-1/16/64
2/24/64
3/11/64
4/02/64
4/17/64
6/23/64
Activity
(pCi/1)
131I
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
A-36
137., 140n
Cs Ba-La
60 "<10
205 <10
70 <10
75 <10
110 <10
110 <10
95 <10
130 <10
105 <10
110 <10
85 <10
115 <10
130 <10
105 <10
110 <10
40 <10
30 <10
15 <10
25 <10
40 <10
60 <10
60 <10
90 <10
95 <10
80 <10
80 <10
90 <10
30 <10
Sr
20
30
10
10
10
5
5
<5
10
5
5
5
5
15
5
10
20
<5
<5
5
5
<5
8
5
<5
<5
5
90
Sr
5
21
10
1
15
9
13
17
14
13
15
20
16
14
11
8
8
3
4
9
15
12
11
10
14
5
Concentration s
(gm/l)
Ca
1. 14
1. 14
1. 10
1. 13
1. 14
1. 14
1. 24
1. 18
1. 29
1. 34
1. 23
1. 22
1. 00
1. 16
1. 25
1. 14
1. 15
1. 11
1. 09
1. 12
1. 13
1. 17
1. 13
0. 97
1. 16
1. 08
K
1. 5
1. 5
1. 7
1. 7
1. 7
1. 5
1. 7
1.6
1. 2
1.6
1. 2
1.6
1.6
1. 7
1. 1
1.6
1. 7
1.6
1.6
1. 7
1. 7
1.6
1.6
1. 5
1.4
1. 5
1. 2
-------
i . amc .>. results uJ routine miiK sampling - juty
tnrougn June (Vb'i
Location
NEVADA (cont1)
Las Vegas(cont')
Meadow Gold Dairy
Lathrop Wells
Selbach
Lid a
Stevens
Date
Collected
7/15/63
7/15/63
8/15/63
9/17/63
10/18/63
11/14/63
12/16/63
1/16/64
2/24/64
3/11/64
4/17/64
6/23/64
12/14/63
12/16/63
12/17/63
12/19/63
1/10/64
2/14/64
7/15/63
8/01/63
8/07/63
8/14/63
9/09/63
10/30/63
12/05/63
1/18/64
2/06/64
3/04/64
Activity
(pCi/1)
1MI
<20
<20 .
<20
<20
<20
<20
<20
<20
<20
<20
<20
sample
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
A-37
137 140
Cs Ba-La
145 <10
75 <10
160 <10
160 <10
115 <10
120 <10
105 <10
105 <10
115 <10
115 <10
150 <10
lost
<5 <10
40 <10
<5 <10
60 <10
35 <10
25 <10
155 <10
90 <10
85 <10
90 . <10
60 <10
100 <10
70 <10
50 <10
60 <10
Sr
55
20
30
35
20
15
10
5
<5
<5
15
5
<5
<5
35
10
5
15
15
5
<5
<5
<5
5
90
Sr
23
8
18
23
1
18
14
18
12
17
23
22
4
15
32
12
14
16
5
1
7
10
9
17
Concentrations
(gm/1)
Ca
1. 18
1. 15
1. 18
1. 10
1. 17
1. 20
1. 17
1. 14
1. 23
1. 20
1. 25
1. 15
1. 19
1. 20
1.49
1. 39
1.42
1.40
1.39
1. 24
1. 07
1.66
1. 63
K
1. 5
1.6
1.6
1.6
1.6
1.6
1. 5
1.6
1. 5
1. 7
1. 3
1. 2
1.8
1. 5
1. 5
1. 5
1.4
1. 8
2. 0
1.8
1.5
1.8
1. 6
1. 2
0. 9
1. 0
-------
Table 3. Results of routine milk sampling - July 1963 through June 1964.
Location
NEVADA(cont')
Lida(cont' )
Stevens(cont' )
Lund
McKenzie
Date
Collected
4/01/64
4/30/64
6/02/64
6/30/64
7/09/63
8/07/63
8/19/63
8/21/63
8/28/63
9/04/63
9/19/63
9/26/63
10/21/63
10/28/63
11/04/63
11/08/63
11/13/63
11/20/63
11/27/63
12/04/63
12/12/63
•12/27/63
1/08/64
1/16/64
1/24/64
1/29/64
2/05/64
Activity
(pCi/l)
131,
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
137 140
Cs Ba-La
•
130 <10
110 <10
100 <10
too sour to analyze
190 <10
260 <10
110 <10
255 <10
240 <10
255 <10
280 <10
270 <10
265 <10
270 <10
245 <10
270 <10
285 <10
295 <10
295 <10
290 <10
155 <10
145 <10
185 <10
170 <10
170 <10
175 <10
160 <10
89Q
Sr
25
<5
65
45
35
20
35
35
35
30
30
35
5
15
20
20
15
20
5
<5
5
5
5
<5
5
90
Sr
21
21
23
29
15
26
22
25
25
23
2
24
20
2
28
33
31
30
15
16
23
24
23
24
25
Concentrations
(gm/D
Ca
1. 52
1. 15
1. 18
1. 14
1. 23
1. 07
.92
1.22
. 97
.97
1. 16
1. 11
1. 03
1. 14
1. 14
1. 19
1. 17
1. 19
1. 13
1. 24
1. 15
1. 25
1. 12
1. 12
1. 18
K
1. 5
1.4
1.4
1.6
1. 3
1.6
1. 5
1.8
1. 5
1.6
1. 7
1.4
1. 7
1.6
1. 5
1. 6
1. 5
1. 5
1.6
1. 5
1.6
1.6
1. 7
1. 7
A-38
-------
Table 3. Results of routine milk' sampling - July 1963 through June 1964.
Location
NEVADA(cont')
Lund(cont' )
McKenzie
Manhattan
Peavine Ranch
Date
Collected
2/14/64
2/20/64
2/27/64
3/05/64
3/12/64
3/19/64
3/26/64
4/03/64
4/09/64
4/15/64
4/23/64
4/30/64
5/08/64
5/14/64
5/21/64
5/29/64
6/04/64
6/10/64
6/18/64
8/14/63
8/21/63
8/27/63
9/10/63
9/17/63
9/25/63
10/01/63
10/09/63
Activity
(pCi/1)
131I
<20
<20
<20
<20
<20
<20
<20
<20 . .
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
137
Cs
165
150
170
155
165
115
135
25
180
110
170
165
125
260
.235
325
270
235
375
125
70
165
245
310
330
330
215
140
Ba-La
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
<10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
< 10
89c:
Sr
8
<5-
10
5
5
10
5
<5-
<5
15
5
<5'
5
10
<5-
5
5
10
5
35
10
25
15
50
45
35
20
90
Sr
72
23
23
17
17
15
24
26
24
13
25
23
17
28
37
39
30
37
40
19
7
19
6
30
3
30
30
Concent!
Ca
1. 14
1. 23
1. 14
1. 22
1. 16
1. 14
1. 22
1. 02
1. 16
1. 18
1. 15
1. 20
1. 17
1. 19
1. 15
1. 15
1. 19
1. 17
1. 20
1. 33
1.27
1.40
1. 15
1. 23
1. 20
1. 30
a t i o n s
/I)
K
1. 6
1.6
1.6
1 . 5
1. 7
1. 3
1. 6
1 . 4
0. 9
1.4
1. 5
I. 5
1. 5
1. 3
1. 6
1.4
1. 5
1.6
1. 4
1. 4
1. 7
1. 9
1 . 8
1.9
1. 6
1. 7
A-39
-------
Table 3. Results of routine milk sampling - July 1963 through June 1964.
Location
NEVADA(cont')
Manhattan(cont' )
Peavine Ranch(cont')
Moapa
K. Searles
Nyala
Sharp
Casey's Ranch
Sharp
Date
Collected
10/14/63
10/21/63
10/17/63
10/24/63
10/28/63
10/28/63
10/31/63
11/04/63
11/11/63
12/01/63
1/04/64
2/03/64
3/05/64
4/29/64
6/03/64
7/11/63
8/20/63
12/09/63
1/29/64
3/06/64
3/30/64
4/29/64
7/09/63
10/14/63
4/01/64
Acti vity
(pCi/1)
131I
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
Cs Ba-La
130 <10
245 <10
100 <10
255 <10
270 <10
265 <10
295 <10
310 <10
315 <10
215 <10
75 <10
345 <10
95 <10
45 <10
80 <10
65 <10
60 <10
80 <10
80 <10
125 <10
115 <10
90 <]()
155
1 . 5
A-40
-------
Table 3. Results of routine milk sampling - July 1963 through June 1964.
Location
NEVADA(cont')
Pah rump
Bowman Ranch
Pioche
Horlacher
Date
Collected
7/19/63
7/29/63
8/08/63
8/26/63
9/11/63
9/17/63
9/26/63
10/02/63
10/08/63
10/18/63
10/24/63
11/01/63
11/08/63
11/14/63
11/20/63
12/04/63
12/14/63
12/14/63
12/16/63
12/17/63
12/17/63
1/07/64
2/14/64
3/31/64
5/02/64
5/29/64
7/09/63
8/21/63
Activity
(pCi/l)
131,
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
137., 140
Cs Ba-La
40 <10
115 <10
40 <10
40 <10
55 <10
35 <10
30 <10
30 <10
40 <10
55 <10
65 <10
55 <10
60
-------
Table 3. Results of routine milk sampling , July 1963 through June 1964.
Location
NEVADA(cont')
Pioche(cont" )
Horlacher(cont' )
Springdale
Peacock
Date
Collected
10/03/63
11/20/63
12/11/63
1/29/64
3/04/64
3/30/64
4/29/64
7/17/63
8/01/63
8/12/63
8/15/63
8/27/63
9/04/63
9/11/63
9/18/63
9/25/63
10/09/63
10/21/63
10/28/63
11/01/63
117 08/63
11/18/63
12/03/63
12/20/63
1/07/64
2/11/64
3/04/64
Activity
(pCi/l)
131,
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
137 140
Cs Ba-La
45 <10
<5 <10
50
-------
Table 3. Results of routine milk sampling - July 1963 through June 1964.
Location
NEVADA(cont')
Springdale(cont' )
Peacock(cont' )
Tonopah
NEW MEXICO
Eunice
Lovington
Artesia
Carlsbad
White City
CALIFORNIA
Apple Valley
Barstow
Brawley
W. Riverside, Rubidoux
San Bernardino
San Diego
Vista
Date
Collected
4/02/64
5/03/64
5/27/64
7/16/63
7/31/63
9/03/63
9/18/63
9/17/63
4/21/64
4/22/64
4/22/64
12/19/63
12/16/63
12/19/63
12/18/63
12/17/63
12/18/63
12/17/63
12/17/63
Activity
(pCi/1)
131. 137 140 89Q 90
I Cs Ba-La Sr Sr
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
75 <10 5 5
125 <10 5 10
60 <10 <5 6
55 <10 20 8
55 <1Q 10 5
235 <10 40 17
40 <10 15 12
30 <10 <5 4
45 <10 5 4
50 <10 <5 6
45
-------
Table 3. Results of routine milk sampling - July 1963 through June 1964.
Location
UTAH
Garrison
Gonders
Newcastle
St. George
Cox
Date
Collected
7/08/63
8/21/63
9/18/63
10/14/63
11/14/63
1/23/64
2/20/64
3/31/64
7/26/63
9/04/63
10/02/63
10/14/63
10/30/63
12/05/63
1/06/64
2/08/64
2/19/64
2/26/64
7/26/63
9/04/63
9/13/63
9/23/63
9/25/63
10/07/63
10/10/63
10/18/63
11/01/63
Activity
(pCi/1)
131I
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
137
Cs
50
80
100
90
75
50
30
100
137
20
120
70
70
85
60
55
70
137
150
35
35
45
45
45
90
135
140n 89C
Ba-La Sr
<10 25
<10 10
<10 15
<10
<10 5
<10 5
<10 <5
<10 5
<10 55
<10 35
<10 15
<10
<10 10
<10 <5
<10 <5
<5
<10 <5
<10 <5
<10 20
<10 20
<10 5
<10 20
<1 0 <5
<10 10
<10 <5
< 1 0 5
<10 10
90
Sr
9
8
15
14
9
9
18
17
25
18
.9
15
12
9
13
14
15
6
6
5
10
5
. 8
. 4
1. 5
Concentrations
(gm/1)
Ca
1. 20
1. 22
1. 22
1. 31
1. 34
1. 20
1. 12
1. 20
1. 21
1. 14
1. 21
1. 17
1. 17
1. 19
1. 19
1. 18
1. 15
1. 13
1. 12
1.11
1. 08
1. 06
1. 04
1. U
1. 1 1
K
1. 6
1. 7
1. 5
1. 7
1. 7
1.4
1. 5
1. 5
1.6
1.9
1. 7
1. 7
1. 7
1. 7
1. 5
1. 5
1. 5
1. 7
1. 5
1. 8
1. 7
1. 7
1. 6
1 . 7
1. 6
1. 6
A-44
-------
Table 3. Results of routine milk sampling - July 1963 through June 1964.
Location
UTAH(cont')
St. George(cont' )
Cox(cont')
Date
Collected
11/08/63
11/15/63
11/22/63
12/13/63
12/20/63
12/27/63
1/03/64
1/10/64
1/17/64
1/24/64
1/30/64
2/07/64
2/14/64
2/21/64
2/28/64
3/06/64
3/13/64
3/20/64
3/27/64
4/03/64
4/10/64
4/.17/64
4/24/64
5/01/64
5/08/64
5/15/64
5/22/64
5/29/64
Activity
(pCi/1)
131I
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
<20
137 140
Cs Ba-La
165 <10
125 <10
155 <10
175 <10
175 <10
150 <10
135 <10
165 <10
170 <10
145 <10
135 <10
150 <10
140 <10
150 <10
135 <10
155 <10
150 <10
130 <10
135 <10
100 <10
115 <10
95 <10
80 <10
80 <10
75 <10
60 <10
85 <10
Sr
10
5
30
<5
5
5
<5
<5
5
5
10
5
<5
<5
5
<5
<5
5
<5
<5
<5
5
10
5
5
<5l
<5
5
90
Sr
1. 7
18
21
23
22
17
19
20
21
23
22
20
22
22
21
19
22
24
13
20
6
18
12
13
14
13
13
18
Concentra
(gm/
Ca
1. 17
1. 08
1. 12
1. 19
1. 17
1. 17
1. 05
1. 17
1. 23
1. 18
1. 17
1. 24
1. 32
1. 21
1. 16
1. 28
1. 13
1. 22
1. 18
1. 16
1. 23
1. 28
1. 22
1. 22
1. 12
1. 23
1. 21
1. 39
tions
1)
K
1. 9
1. 7
1. 7
1. 8
1. 7
1. 4
1.4
1. 7
1. 7
1. 5
1.6
1.4
1. 5
1.6
1.4
1. 5
1.4
1. 5
1.6
1. 5
1.6
1. 5
1.4
1.6
1. 3
1.6
A-4 5
-------
Table 3. Results of routine milk sampling - July 1963 through June 1964.
Location
UTAH (cont1)
St. George(cont' )
Cox(cont' )
Date
Collected
6/05/64
6/12/64
6/19/64
Activity
(pCi/1)
131T 137_ 140
I Cs Ba-La
<20 95 <10
<20 90 <10
<20 70 <10
Sr
<5
10
5
90
or
13
13
12
Concentrations
(gm/1)
Ca K
1.23 1.4
1. 17 1.4
1. 17 1. 5
A-46
-------
DISTRIBUTION
1-15 Southwestern Radiological Health Laboratory, Las Vegas, Nevada
16-18 Test Branch, (Lt. Col. Schmucker), DMA, AEC, Washington, D.C.
19 Col. D.I. Prickett, DASA, Sandia Base, Albuquerque, N.M.
20-28 Gordon M. Dunning, DOS, AEC, Washington, D.C.
29 Ernest C. Anderson, DRH. USPHS, Washington, D.C.
30 Donald J. Nelson, TOB, DRH, USPHS, Washington, D.C.
31 James G. Terrill, Jr., DRH, USPHS, Washington, D.C.
32 Raymond Moore, DRH, USPHS, Region VII, Dallas, Texas
33 Donald L. Snow, DRH, USPHS, Washington, D.C.
34 Clifford M. Bacigalupi, LRL, Mercury, Nevada
35-37 Robert H. Goeckermann, LRL, Livermore, California
38 Bryce L. Rich, LRL, Mercury, Nevada
39 Harry S. Jordan, LASL, Los Alamos, New Mexico
40 Charles I. Browne, LASL, Los Alamos, New Mexico
41 James E. Ree-es, Manager, NVOO, AEC, Las Vegas, Nevada
42 Robert H. Thalg ;tt, NVOO, AEC, Las Vegas, Nevada
43-44 Col. E. G. Halligan, NVOO, AEC.. Las Vegas, Nevada
45-49 Otto H. Roehlk, OSD, NVOO, AEC, Las Vegas, Nevada
50 Henry G. Vermillion, NVOO, AEC, Las Vegas, Nevada
51 Philip W. Allen, ARFRO, ESSA, NVOO, AEC, Las Vegas, Nevada
52 Frank D. Cluff, ARFRO, ESSA, NVOO, AEC, Las Vegas, Nevada
53 G. D. Ferber, ARL, ESSA, MRPB (R-3.3), Washington, D.C.
54 Victor M. Milligan, REECo Rad-Safe, Mercury, Nevada
55 ClintonS. Maupin, REECo, Las Vegas, Nevada
56-57 Mail and Records, NVOC, AEC, Las Vegas, Nevada
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