SWRHL-105r
PROJECT GASBUGGY
OFF-SITE RADIOLOGICAL SAFETY REPORT
GB-2R PHASE I PROGRAM
by
Technical Support Section
Environmental Surveillance
Southwestern Radiological Health Laboratory
U. S. Department of Health, Education, and Welfare
Public Health Service
Environmental Health Service
July 1970
This surveillance performed under a Memorandum of
Understanding (No. SF 54 373)
for the
U. S. ATOMIC ENERGY COMMISSION
-------
LEGAL NOTICE
This report was prepared as an account of Government sponsored
work. Neither the United States, nor the Atomic Energy Com-
mission, 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 inform-
ation, 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 damages
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"
includes 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, dis-
seminates, or provides access to, any information pursuant to his
employment or contract with the Commission, or his employment with
such contractor.
008
-------
SWRHL-105r
1 PROJECT GASBUGGY
OFF-SITE RADIOLOGICAL SAFETY REPORT
GB-2R PHASE I PROGRAM
by
Technical Support Section
Environmental Surveillance
Southwestern Radiological Health Laboratory
U. S. Department of Health, Education, and Welfare
Public Health Service
Environmental Health Service
Environmental Control Administration
Bureau of Radiological Health
July 1970
This surveillance performed under a Memorandum of
Understanding (No. SF 54 373)
for the
U. S. ATOMIC ENERGY COMMISSION
-------
ABSTRACT
The Southwestern Radiological Health Laboratory provided off-site
radiological surveillance for the Gasbuggy-2 Redrill (GB-2R) -
Phase I program. This surveillance was the continuation of the pre-
vious off-site surveillance program for Gasbuggy, and consisted of:
a. Operating a daily air sampling network.
b. Placing thermoluminescent dosimeters in a network around
the site.
c. Monitoring for radioactivity.
d. Taking special air samples during flaring operations.
e. Collecting water, vegetation, and soil samples after com-
pletion of testing operations.
The only radioactivity above background levels detected off-site was
in special air samples. These samples contained tritium concentra-
tions above background; the concentrations found presented no
hazard to any people or livestock living in the off-site area.
-------
TABLE OF CONTENTS
ABSTRACT i
INTRODUCTION 1
PERSONNEL AND EQUIPMENT 2
MONITORING 2
DOSIMETRY 3
ENVIRONMENTAL SAMPLING 4
Daily Air Samples 4
Special Air Samples 5
Water Samples 7
Soil and Vegetation Samples 7
SUMMARY 8
APPENDIX - TABLES AND FIGURES
Table 1 - TLD Exposure Results 9
Table 2 - Daily Air Sampling Results - Beta Analysis 10
Table 3 - Special Air Sampling Results 16
Table 4 - Water Sampling Results 17
Table 5 - Soil and Vegetation Sampling Results 18
Figure 1 - TLD Station Locations 19
Figure 2 - Sampling Locations 20
11
-------
INTRODUCTION
The Southwestern Radiological Health Laboratory (SWRHL) provided
off-site radiological surveillance for the Gasbuggy-2 Redrill (GB-2R) -
Phase I Program. This surveillance was the continuation of the
previous off-site surveillance program for Gasbuggy. The previous
program consisted of pre-shot preparations, shot monitoring
operations (D-10 to D+10) and the redrill into the cavity through
the Emplacement hole (GB-E); this program was completed by mid-
January, 1968.
Prior to the original drilling of the GB-E, two wells were drilled,
Gasbuggy-1 (GB-1) and Gasbuggy-2 (GB-2). The GB-2R Phase I
program consisted of redrilling the GB-2 and flaring gas from the
cavity for 15 days. The gas actually flowed from the GB-E redrill well
since technical difficulties prevented any major flowing from GB-2R
well. The SWRHL surveillance program lasted from mid-June 1968
until mid-July 1968.
The Public Health Service conducted this program of radiological
environmental surveillance of the off-site area for the Safety Evalu-
ation Division of the AEC's Nevada Operations Office under a
Memorandum of Understanding between the U. S. Atomic Energy
Commission (AEC) and the Public Health Service (PHS). The safety
2
criteria were unchanged.
Report of Off-Site Surveillance for Project Gasbuggy, March 1967 to
June 1968-SWRHL-99r, February 1970.
2
Off-Site Radiological Safety Operational Plan for Project Gasbuggy,
October 6, 1965.
1
-------
PERSONNEL AND EQUIPMENT
The field operations were the responsibility of the Gasbuggy Project
Officer, who was in the area from June 13 to July 16, 1968. These
operations consisted of:
a. Operating a daily air sampling network.
b. Placing thermoluminescent dosimeters in a network around
, the site.
c. Monitoring for radioactivity.
d. Taking special air samples during flaring operations.
e. Collecting water, vegetation, and soil samples after
completion of testing operations.
The Project Officer's vehicle was equipped with a two-way radio,
survey instruments, routine and special air sampling equipment,
and soil, water, and vegetation sampling equipment. The survey
instruments were:
a. Scintillation Survey Instrument, Baird Atomic, Model NE-148,
(range of 0. 01 mR/hr to 3 mR/hr).
b. Geiger Counter Survey Instrument, E-500B (range of ,
0. 01 mR/hr to 2 R/hr).
c. lonization Chamber Survey Instrument AGB-50B-SR
(Victoreen Radector II with a range of 0. 01 mR/hr to
50 R/hr).
MONITORING
Monitoring was first performed during flow meter logging of GB-2R,
and again throughout the downwind area during the first eight hours
of GB-E flaring. Monitoring was performed by the Project Officer
-------
approximately four days per week during all flaring operations. No
levels of radiation above background could be detected in the off-site
area with portable survey instruments.
DOSIMETRY
Thermoluminescent dosimeters {TLD's) were stationed around the
site at nineteen locations (Figure 1) ranging from 0. 1 to 6 miles
from surface ground zero (SGZ). TLD's were placed on June 27,
1968, and collected on July 16, 1968. Each station was equipped
with three EG&G Model TL-12 CaF:Mn TLD's having a sensitivity
range of 1 mR to 5000 R. ;In addition to the TLD stations, three
TLD's were carried by the Project Officer in his vehicle on all
of his field operations.
The station locations were selected with regard to predominant wind
direction during this period of the year. During daytime hours, the
wind moves primarily toward the northeast. At night a stable air
condition generally exists and the air "drains" downhill toward the
o o
northwest. An array of TLD's was placed from 345 to 180
(Figure 1, stations 4 to 16) at distances of one mile to six miles
from SGZ. An arc of three stations (one to three) was placed 1. 3
miles northwest of SGZ crossing the valley through which the
drainage winds pass. Two stations (17 and 18) were placed approx-
imately six miles northwest of SGZ in the same valley.
The average total exposure recorded at each location over nineteen
days is given beside each station in Figure 1. Table 1 gives the
exposure for each TLD within the network. The exposure values
given in Table 1 show no areas where the exposure level was
significantly higher than the background recorded in Farmington.
3
-------
ENVIRONMENTAL SAMPLING
Environmental sampling consisted of daily air sampling at ten sta-
tions, ranging from 5 to 50 miles from SGZ, special air sampling
within 0. 3 miles of SGZ, and sampling of water, vegetation, and
soil following completion of the flaring.
Daily Air Samples >
A network of 35 air sampling stations was used for surveillance
during Project Gasbuggy. Eleven of the 27 stations established spe-
cifically for the event (the remaining eight were ASN or Standby
ASN stations) remained on standby following the clean-up after the
GB-E redrill. Ten of these eleven operated daily from June 30
to July 18, 1968. These stations were:
Station T .. Station _
.. Location ^T Location
No. No.
425 Pagosa Springs, Colorado 430 Coyote, New Mexico
426 Dulce, New Mexico 432 Lindreth Plant (EPNG),
New Mexico
427 Chama, New Mexico 433 Allison, Colorado
428 Tierra Amarilla, New Mexico 434 Gobernador, New Mexico
429 Canjilon, New Mexico 445 Farmington, New Mexico
Air sampling stations were equipped with air samplers using a posi-
tive displacement pump. The filter system used was a 4-inch-diameter
glass fiber filter followed by a 4-inch BM 2306 activated charcoal
cartridge.
All filters and charcoal cartridges were mailed directly to SWRHL
for analysis. The filters were beta counted upon arrival at the
laboratory and again on the fifth and twelfth day after collection.
If the initial beta count indicated an activity concentration of more
-------
3
than 1 pCi/m , or if the five-day count was more than 150 counts
above background, the filter was to be gamma scanned. The
charcoal cartridge was gross gamma counted upon arrival and, if
the count was greater than 500 counts per minute, the filter and
cartridge were to be gamma scanned. No gamma scans were
required under these criteria.
The gross beta results for the daily air samples are given in Table 2;
the values given for beta counting were extrapolated to end of col-
lection. In several cases the volumes appear to be lower than
normal for the period of operation. This is due to the sampler not
operating continuously, usually caused by a power failure or dis-
ruption. The period of operation is determined by a time meter
on each sampler. The analytical results were in agreement with
ASN results during the period of operation.
Special Air Samples
Air samples were collected within 0. 3 miles of SGZ using two
sampling systems. One was a molecular sieve column system
which removed the moisture from the air for tritium analysis;
the other was a cryogenic system which removed any moisture,
xenons, and kryptons for radioanalysis.
The molecular sieve sampler consisted of a column of Linde 13x
(pellet form, 1/16-inch diameter) molecular sieve, 4 inches in
diameter and 14 inches in length. Air was pulled through the
column at approximately 4 cfm. A filter of glass fiber removed
particulate material.
The cryogenic system consisted of a cyclone separator and two
molecular sieve columns submerged in a bath of liquid nitrogen
-------
.maintained at 11 to ISpsig. The separator froze all the moisture
and the sieve trapped the portions of air which liquify above 84 K,
A glass fiber filter removed particulate material from the air
entering the system. The samples were analyzed for tritium and
for radioisotopes of xenon and krypton.
The results of the special air samples are given in Table 3. No
sample collected had a level of radioactivity which would be con-
sidered a hazard to any off-site population. The wide variation
of tritium activities prevent any firm conclusions as to higher or
lower concentrations due to sampling locations or time. No
samples showed any detectable levels of radioxenons or radio-
kryptons. Two samples can be considered as background. Sample
No. 50280 was taken for background information. The sample was
taken 0.4 miles downwind from a well drilling operation which was
flaring the drilling gas. The operation was located approximately
seven miles southwest of surface ground zero. Sample No. 50250
was not intended to be for background information, however,
apparently it collected only background levels of tritium. No firm
conclusions can be drawn from the limited samples; additional
samples should be collected during future surveillance operations.
The highest concentration of tritium found in any of the air samples
collected was 1200 pCi/m . This was 1. 8% of the maximum per-
missible concentration for continuous exposure to a suitable sample
43 1
of the population in uncontrolled areas of 6. 7 x 10 pCi/m for air.
AEC Standards for Radiation Protection, Appendix to Chapter 0524,
Section II-A.
-------
The sample was taken during stable meteorological conditions which
would inhibit diffusion, therefore, it represents a peak value which
may have persisted for limited periods.
Water Samples
Following flaring operations, seven samples were taken from open
water sources at locations from one to seven miles from SGZ.
The results of these samples are given in Table 4. These samples
were gamma scanned and analyzed for tritium. All gamma scans
showed no detectable activity, and all tritium values were at
background levels.
Soil and Vegetation Samples
Soil and vegetation samples were taken following completion of GB-E
redrill flaring operations. The samples were taken to determine
if any radioactive deposition had taken place downwind. The
sampling locations are given in Figure 2. No radioactive deposition
was found on the samples; however, it was decided after the sam-
ples had been collected to dehydrate a portion and analyze for
tritium. The results of the tritium analysis are given in Table 5.
It is difficult to draw conclusions from the results of the tritium
analysis on soil and vegetation samples since the sampling scheme
for soil and vegetation was not designed for tritium analysis. The
soil samples, however, generally show tritium concentration in
the recovered water decreasing with distance, while in vegetation
the concentration seems to be somewhat constant with increasing
distance. The difference between soil and vegetation results
might be explained by the mixtures of species in vegetation, while
soil composition was probably fairly constant over the area of
collection.
7
-------
SUMMARY
The monitoring and dosimetry operations showed no detectable
radioactivity in the off-site area. The environmental sampling
program showed no radioactivity above background in daily air
samples, or water samples. Levels of tritium above background
were found in special air samples which collected moisture from
the air and also in soil and vegetation samples. None of the
tritium results showed levels which presented a hazard to any
people or livestock living in the off-site area.
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Table 1. TLD Exposure Results
Station No. TLD No.
1 1101
1102
1103
2 1104
1105
1106
3 1107
1108
1109
4 1155
1156
1157
5 1110
1111
1112
6 1113
1114
1115
7 . 1116
1117
1118
8 1119
1120
1121
9 1122
1123
1124
10 1125
1126
1127
11 1128
1129
1130
Total Exposure
6/27/68-7/16/68
6 mR
6 mR
5 mR
4 mR
5 mR
7 mR
4 mR
5 mR
5 mR
4 mR
4 mR
4 mR
'6 mR
, 5 mR
6 mR
6 mR
5 mR
5 mR
6 mR
8 mR
6 mR
6 mR
5 mR
5 mR
5 mR
5 mR
6 mR
5 mR
5 mR
5 mR
5 mR
5 mR
Station No. TLD No.
12 1131
1132
1133
13 1134
1135
1136
14 1137
1138
1139
15 1140
1141
1142
16 1143
• 1144
1145
17 1146
1147
1148
18 1149
1150
1151
19 1152
1153
1154
Project 1158
Officer 1159
1160
Controls- 1161
Farmington 1162
1163
1164
1165
Total Exposure
6/27/68-7/16/68
3 mR
3 mR
3 mR
5 mR
5 mR
5 mR
5 mR
6 mR
5 mR
6 mR
6 mR
5 mR
6 mR
5 mR
5 mR
5 mR
6 mR
6 mR
6 mR
5 mR
5 mR
4 mR
4 mR
. 4 mR
4 mR
5 mR
3 mR
8 mR
5 mR
6 mR
5 mR
-------
Table 2. Daily Air Sampling Results*
c ' T . Station '^mpling
Sampling Locations >T_ Start
Day Hour
Pagosa Springs, 425 June 21 1755
Colorado 23 1210
24 1751
25 2115
27 1703
28 2245
30 1001
July 1 1846
.5 0901
7 1628
9 2017
10 1800
Dulce, New Mexico 426 June 21 0945
.22 1620
24 0805
25 0812
26 0815
27 0818
28 0905
July 1 0835
2 0820
3 0830
5 0800
6 0915
7 1440
8 0825
9 0843
10 0823
11 1018
12 0824
15 0920
17 0848
Period
' Stop
Day
23
24
25
27
28
30
1
5
7
9
1.0
11
22
24
25
26
27
28
1
2
3
5
6
7
8
9
10
11
12
15
17
18
Hour
1210
1750
2105
1702
2235
1000
1845
, 0900
1627
2015
1759
1950
1615
0800
0808
0815
0815
0900
0830
0818
0825
0800
0908
1435
0820
0840
0819
1015
0820
0920
0845
0950
Sample
Volume
(m3)
811
543 '
522
893
525
711
650
1697
1152
1020
447
524 .
600
818
499
497
495
511
1477
495
499
957
548
635
385
528
513
563
478
1533
984
546
Beta Integrated
Activity Beta Activity
(pCi/m3) (pCi-hr/m3)
0.2 .
0. 1
0.5
0.3
0.4
0.2
0.5
0.2
0. 1
0. 1
0. 1
0. 1
0. 1
0. 1
0.3
0.4
0.3
0.3
0.2
0.3
0. 1
.0. 1
0. 1
0.4
0.1
0.2
0. 1
ND
0. 1
0. 1
0. 1
ND
7. 7
4. 1
13.7
14.7
10.0
7.0
18.0
13.3
6.6
6.6
1.5
2.6
2.9
4.5
6.9
9.2
6.1
6.5
15. 2
7.3
2. 1
4.3
2.5
1.0
2.1
4.2
1.9
ND
2.6
6.3
4.0
ND
#No. gamma scans were made on filters or charcoal cartridges since none were required
under the criteria set forth on Page 4 of this report.
10
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Table 2. Daily Air Sampling Results (continued)
... . Station Sampling
Sampling Locations .. _
No. Start
Day Hour
Chama, New Mexico 427 June 2T1230
22 0900
23 1805
24 0600
25 1204
26 0917
27 1300
28 0920
29 0900
30 1100
July 1 1000
2 0800
3 0800
4 1400
5 0800
6 0825
7 1230
11 1100
12 1200
13 0800
14 1125
15 1000
16 1130
17 1400
t.frraK , m.ari a' 428 June 21 0930
New Mexico
23 1005
24 1007
25 1008
26 1000
27 1015
28 1013
29 1015
30 1015
July 1 1044
2 1013
3 1004
4 1007
Period
Stop
Day
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
10
12
13
14
15
16
17
18
22
23
24
25
26
27
28
29
30
1
2
3
4
5
Hour
0900
1800
0600
1200
0915
1300
0915
0900
1100
1000
0800
0800
1400
0800
0820
1230
1200
1200
0800
1120
1000
1130
1400
1400
1000
1000
1002
1005
0955
1014
1010
1013
1015
1040
1010
1000
1003
1000
Sample
Volume
(m3)
425
705
259
626
450
589
431
517
565
489
489
520
648
391
504
634
1522
528
444
596
476
567
567
522
533
522
520
515
517
526
520
522
522
545
507
517
522
520
Beta Integrated
Activity Beta Activity
(pCi/m3) (PCi-hr/m3)
0.2
0. 1
0. 1
0.4
0.6
0.3
0. 7
0.3
0.3
0.7
0.3
0.2
0. 1
0.2
0. 1
0.1
0.2
0. 1
0.2
0.2
0. 1
0. 1
0. 1
ND
0. 1
0.2
0. 1
0.4
0.4
0.3
0.6
0.3
0.2
0.6
0.2
0. 1
0. 1
0.2
3.4
4.7
1. 7
11.6
11.8
9.4
14. 1
7. 1
6.7
16.4
1.5
3.3
4.8
3.3
2.6
1.6
11.5
2.8
3.2
5.7
2.6
3.4
3.3
ND
2.9
4.4
3.3
8.4
9.8
6.2
14.0
6.9
5.4
14.8
5.5
2.3
2.7
3.9
11
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Table 2. Daily Air Sampling Results (continued)
0 , . Station Sampling
Sampling Locations ^T^ Start
Day Hour
Tierra Amarilla, 428 July 5 1004
New Mexico(continued) 6 1100
7 1030
8 1005
9 1007
10 1013
11 1022
17 1300
Canjilon, New Mexico 429 June 21 1200
22 1200
23 1200
24 1200
25 1200
26 1200
27 1200
28 1200
29 1200
30 1200
July 1 1200
2 1200
3 1204
4 1200
5 1200
6 1200
7 1200
8 1200
9 1200
10 1200
11 1200
12 1200
13 1200
14 1200
15 1200
16 1200
17 1200
Coyote, New Mexico 430 June 21 1115
22 UOO
Period
Stop
Day
6
7
8
9
10
11
12
18
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
22
23
Hour
1045
1025
1002
1005
1009
1019
1015
1300
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
0845
0635
Sample
Volume
(m3)
539
509
511
522
524
524
520
520
485
472
472
485
472
472
472
485
485
472
472
485
485
472
485
472
485
485
485
485
472
472
472
485
485
485
485
405
364
Beta Integrated
Activity Beta Activity
(pCi/m3) (PCi-hr/m3)
0. 1
ND
ND
0. 1
0. 1
0. 1
0. 1
0. 1
0. 1
0.2
0. 1
0.4
0.6
0.3
0.8
0.3
0.3
0.6
0.2
0. 1
0.2
0.2
ND
0. 1
0. 1
0. 1
0. 1
0. 1
0. 1
0.2
0.2
0. 1
0.2
0. 1
0.2
0.2
0.2
2.0
ND
ND
1.4
2.3
1.4
1.7
2.3
3. 1
3.7
3. 1
9.7
14.6
6.2
18.8
6.4
8.0
15.5
4.8
3. 1
4.5
4. 1
ND
2.4
3.1
3. 1
2.6
2.4
1.9
4.3
4.7
2.3
4.3
2.3
0.5
4.5
3.5
12
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Table 2. Daily Air Sampling Results (continued)
Sampling Locations
Coyote, New Mexico
(continued)
Lindreth Plant(EPNG)
New Mexico
Allison, Colorado
,, . Sampling
Station p 5
... Start
Day Hour
430 June 23 0740
24 0830
25 0825
26 0540
27 0805
28 0845
29 0920
30 0630
July 1 0740
2 0930
3 0945
4 1015
5 0810
6 1115
7 1015
8 1230
17 1900
432 June 28 0800
29 0800
30 0800
July 1 0800
2 0800
3 0800
4 0800
5 0800
6 0801
7 0800
8 0800
9 0800
10 0800
11 0800
12 0800
433 June 25 0900
26 1100
27 1100
28 1100
29 1100
30 1100
Period
Stop
Day
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
18
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
26
27
28
29
30
1
Hour
0730
0730
0535
0630
0715
0-750
0930
0625
0735
0900
0920
0730
0845
0908
1000
1145
1900
0800
0800
0800
0800
0800
0800
0800
0801
0800
0800
0800
0800
0800
0800
0800
1100
1100
1100
1100
1100
1100
Sample
Volume
446
429
394
466
438
419
366
448
444
440
442
383
453
451
442
437
462
487
465
485
522
522
522
522
526
522
520
522
520
524
520
520
523
485
497
497
497
497
Beta Integrated
Activity Beta Activity
(PCi/m3) (pCi-hr/m3)
0.2
0.4
0.8
0.3
1.0
0.2
0.4
0.8
0.5
0.2
0.2
0.2
0. 1
ND
0. 1
0.2
0. 1
0.2
0.3
0.6
0.2
0. 1
0.1
0.1
0. 1
ND
0. 1
0. 1
0. 1
0. 1
0. 1
0. 1
0.5
0.2
0.5
0.2
0.5
0.3
4.9
8.9
16.8
8.0
24.2
5. 1
7.2
20.1
11.5
3.8
4.5
3.6
2. 1
ND
2.6
5. 7
3. 1
4. 5
5.9
14.4
4.6
2.2
3.4
2.4
2.2
ND
2.6
2.2
2.2
2.2
2.0
3.2
14.0
5.6
11.5
5.5
10.9
8.2
13
-------
Table 2. Daily Air Sampling Results (continued)
0. Sampling
Station _ t- &
Sampling locations ^T^ Start
Day Hour
Allison, Colorado 433 July 1 1100
(continued) 2 1100
3 1104
4 1100
5 1100
6 1900
7 1800
8 1800
9 0700
10 1900
11 1100
12 1300
13 1100
14 1700
15 1000
16 1000
17 1600
Gobernador, 434 June 21 1010
New Mexico 22 0900
23 0900
24 0900
25 0950
26 0950
27 0950
28 1000
29 1010
30 1000
July 1 1010
2 1002
3 1040
4 1040
5 1000
.9 1515
10 1140
11 0945
12 0805
13 0840
Period
Stop
Day
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
10
11
12
13
14
Hour
1100
1100
1100
1100
1900
1800
1800
0700
1900
1100
1300
1100
1700
1000
1000
1600
1100
0900
0900
0900
0950
0950
0950
1000
1010
1000
1010
1002
1040
1040
1000
1005
1140
0940
0800
0835
0930
Sample
Volume
(m3)
497
481
485
522
671
458
447
269
725
338
539
435
628
369
503
613
392
447
472
472
516
495
522
524
526
517
534
469
486
470
445
464
391
422
439
470
475
Beta Integrated
Activity Beta Activity
(pCi/m3) (pCi-hr/m3)
0.5
0. 1
0.2
0.2
0. 1
0. 1
0.2
0.4
ND
0. 1
0.2
0. 1
0.2
0. 1
0.2
0. 1
0. 1
0. 1
0.2
0. 1
0.3
0.4
0.2
1. 1
0.2
0.2
0. 5
0.3
0.2
0. 1
0. 1
0. 1
0. 1
0. 1
0. 1
0.2
0.2
13. 1
3.3
4.4
3.9
3.6
2.4
4. 1
4.9
ND
1.5
4. 1
2.9
7.4
1.7
4.-6
4.3
2.2
2.3
4.3
2.9
8.0
10.4
4. 7
26.1
3.7
5.8
10.9
6.4
4.5
2.5
3.2
2.5
1.7
1.2
2.3
4.2
3.9
14
-------
Table 2. Daily Air Sampling Results (continued)
Sampling locations
Gobernador, New
Mexico (continued)
Farmington,
New Mexico
Station Sampling
Mo Start
Day Hour
434 July 14 0935
15 1045
16 1010
17 1009
, 445 June 28 1127
29 1035
July 1 0815
2 1118
4 1845
5 1140
6 0820
7 0830
8 0812
9 0930
10 0810
11 0930
12 1045
15 1050
Period
Stop
Day
15
16
17
18
29
1
2
4
5
6
7
8
9
-10
11
12
15
19
Hour
T040
1010
1005
0955
1035
0811
1115
1845
1133
0815
0827
0810
0925
0805
0925
1040
1045
0803
Sample
Volume
(m3)
498
447
470
481
395
824
484
978
296
363
425
404
492
445
496
494
1382
1496
Beta Integrated
Activity Beta Activity
(pCi/m3) (pCi-hr/m3)
0. 1
0.1
0. 1
0. 1
0.4
0.6
0.4
0. 1
0.2
0. 1
ND
0. 1
0. 1
0. 1
0. 1
0.1
0. 1
0. 1
2.4
3.2
2.2
1.2
8.9
26.3
11.8
6.6
3.4
1.9
ND
2.5
1.7
1.7
2.0
3.2
10.2
12.6
Detectable limit: Beta 0. 1 pCi/m3, based on 300 m3 and 2-minute counting time.
15
-------
Table 3. Special Air Sampling
cr-
Wind
Condition
Drainage
Drainage
Afternoon
Afternoon
Afternoon
Afternoon
Background
Afternoon
Sample No.
50279
50250
48826
48825
48983
50035
Sample
50280
Date
7/9
7/12
6/29
6/29
7/2
7/3
7/9
_ Air Volume
Type . , . -i
Ambient m-3
Sieve
Cryogenic*
Cryogenic*
Sieve
Cryogenic*
Sieve
Sieve
5.58
2.25
0.42
1. 16
1. 28
4.93
5. 02
H20
Collected
37 ml
15
0.7
2
10
50
35
3H
pCi
384
60.7
57
1,350
76
800
207
3H
pCi/ml
11
4
81
675
8
16
6
3
pCi/m
69
28
140
1,200
59
160
41
*A11 cryogenic samples were analyzed for radioxenon and radiokrypton. Neither was found in any sample.
-------
Sample No. Date taken
Table 4. Water Sampling Results
Location*
Tritium Gamma Scan
(pCi/1)
48892
48893
50283
50281
50282
50291
50284
6/24/68
6/27/68
7/16/68
7/16/68
7/16/68
7/16/68
7/16/68
NS
15
14
NS
15
13
12
- Pettus Ranch
- Drilling Water Pond, Gas buggy Road
and NM 17
- Well and Pond No. 1
- Pond No. 4, 0. 2 mi W La Jara Wash
Bridge on NM 17
- Drilling Water Pond
- Pond, 0.4 mi W Jicarilla - Carson
Boundary
- Laguna Seca
900
700
< 400
800
< 400
Negligible
Negligible
Negligible
Negligible
Negligible
Negligible
Negligible
*Numbers 12 - 15 are as shown in Figure 2.
NS - Not shown.
-------
00
Sample
No.
Table 5. Soil and Vegetation Sampling Results
(All samples taken on 7/16/68)
LOCATION
(Shown on
Figure 2)
1
2
3
4
5
6
7
8
9
10
11
SOIL
Number
050273
050269
050272
050275
050274
050270
050271
050268
050276
050267
pCi/ml
of water
content
6.3±1.0*
8.2±1.0
1.8±0.6
2.2+0.6
3. 910.8
4. 7+0. 8
15. 710.8
4. 410. 8
6.011.0
4. 510.8
VEGETATION*
Number
050262
050264
050256
050261
050266
050258
050260
050259
050265
050257
050263
No. of
Species
5
3
4
3
4
5
3
3
2
2
5
(Rep-I)
pCi/ml
of water
content
1. 710. 6
3. 3±0. 6
1.8±0.6
3. 7±0. 8
2. 510. 6
2. 210. 6
4. 110. 8
3. 410. 6
3. 310. 6
3. 310. 6
2. 410. 6
(Rep-II)
pCi/ml
of water
content
3. 710.8
2. 5±0. 6
3.0±0.6
3. 110.6
2. 210. 6
2. 010. 6
1.810.6
1.610.4
1.910.4
1.810.6
2.210.6
Direction
from SGZ
Distance
from SGZ
(mi)
NW
NW
NW
NW
Trlr Pk
Trlr Pk
E
E
E
NE
NE
0.3
0. 6
0.9
1. 3
0.2
0.5
0.2
0.5
1.0
1 +
3.0
*Sample was divided and each portion analyzed separately. * Based on 2
-------
era
£
4
n>
o
3
o
n
O
3
0)
: 5.3 mR
9: 5.0mR
5.3mR
• Station Number Average Total Exposure
6/27-7/16/68
UNIMPROVED
ACCESS ROAD
GASBUGGY S.G.Z
j
4.0mR
/
17: 6.7mR
\ RECORDING
\ TRAILER PARK
*
4: 4.0mR
> 6: 5.3 mR
5: 5.7 mR
-------
"3
M»
(TO
(D
en
&>
N 3
O TD
t—'
M*
3
(TO
n
O
3
0)
IMPROVED \
ACCESS ROAD »
• Soil and Vegetation 1-10
A Vegetation Only 11
+ Water 12-15 (Two stations not shown,
outside map)
if Special Air 16-17
UNIMPROVED
ACCESS ROAD
\
A
RECORDING
TRAILER PARK
.13
------- |