ML20148C327
| ML20148C327 | |
| Person / Time | |
|---|---|
| Issue date: | 10/30/1978 |
| From: | Scarano R NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Wolff T NEW MEXICO, STATE OF |
| References | |
| REF-PROJ-M-12 NUDOCS 7811020015 | |
| Download: ML20148C327 (15) | |
Text
- _ _ - _ _ _ _
CQ (' N Sm Raop,b, UNITED STAVES j
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NUCLEAR REGULATORY COMMISslON g
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9 Dr. Ted Wolff, Manager Radiation Section Environmental Improvement Division Santa Fe, New Mexico '87503
Dear Dr. Wolff:
After reviewing the applications and Envirormental Reports of both Bokum Resources and Gulf Mineral Resources Corporation, the NRC has found a need for additional information before the radiological assessments for these proposed mills can be conducted.
Enclosed, you will find an information request packet for each applicant. Please forward these to the proper authority in the respective corporations for response. Upon receipt of each response, we will give prompt attention to completion of the assessments.
If you have any questions on these information requests, please contact Stephen Manger of my staff at 301/427-4103.
Sincerely, 4:::V W
Ross A. Scarano, Section Leader Uranium Mill Licensing Section Fuel Processing & Fabrication Branch Division of Fuel Cycle and Material Safety
Enclosures:
As stated 7 8 1 'I; O 3 O O l S ~
TDR PRcG H-lb C
BOKUM RESOURCES The following i.
. ion is requested of Bokum Resources for use in the radiologit. issessment:
1.
For each of the three attached forms, provide the information as discussed in the respective cover sheets.
2.
For the tailings management program discussions, provide (a) the effective diffusion coefficient (in cm2/sec) used for (1) sands, and for (2) slimes.
(b) the tailings density (gm/cc) for (1) background tailings area soils, (2) tailings sands, and (3) tailings slimes.
for (1) sands, (2) slimes, and (3)238, Th230, Ra226 and Pb210)
(c) provide specific activities (U background tailings area soils.
r.
~
TABLE I On the attached table, for each of the listed sources, give the values listed on the horizontal axis.
Values for the Sources of Isotope Emission Should Be Given in the Following Form:
- 1) A central location for the alli should be determined (for example the center of the main mill building)
- 2) The positive y direction is north of mill center (in b)
The positive x direction is east of' mill center (in b)
The positive z direction is upward from the alli center elevation height (in meters)
(all values may be positive or negative)
- 3) Any sources with stack should have exit velocities (m/sec.) If no stacks are present, give dust emission values (lb/hr or Kg/hr)
Emission Rates (Curies / Year)
SOURCE 5*
Source Coordinates Release Area 238 230,h 226 210 222 "
Exit Velocity Dust Emission Value Ra Pb g
i x(km)
Y_M Z(m)
(Km2) 92 90 88 82 86 (Point Source)
(Area Source)
- 1) Primary Crusher
- 2) Ore Storage
~ Pad
- 3) Secondary Cru'.her e
- 4) Fine Ore Blending 5)Leachingand Extraction (Different stages) i
- 6) Yellow Cake i
Orying &
Packaging
- 7) Calcining j
- 8) Submerged tails i
l
- 9) Tallings Sands
- 10) Tailings 511mes
- 11) Mines.
- 12) Others NOTE THAT SOME OF THESE SOURCES MAY BE COMBINED.
l'
,, - 6*
TABLE II - Demography - Population Distribution The population distribution should be given in the following manner:
Sectors are marked off by the sixteen compass directions and radial distance along the compass directions up to 80 km (50 miles).
The arcs (degrees) and distances (km) should be broken up in the manner indicated, and the population corresponding to each sector provided.
I
tit POPULATION DiSTRIBt! TION t
N NNE NE.
ENE E,
FSE SK
, SQE.
S.
.SW W5W W
WN4 kw ww KILOMETERS 8 0.0 Er,5 a5.0 67.5 90.0 112.5.135,0 157.5 180.0 202.5 275.0 247,5 270.0 292.5 315.0 337.5 I
1 0.0 1
8 I
- .1 5
t t
."5 1.0 t
i 1.'O. 2.0 8
9 t
^
2.0 3.0 t
t 3.0 4.0 t
t
~
8 4.0 5.0 I
5.*0 10.0 t
i 10.0 20.0 t
i 20.'O.30.6 8
9 30.0-40.0 t
~
t 40.0 50.0 t
8 50.'0 60.0 t
t 60.'0 70.0 t
t 70.0 80.0 t
1 l
4 4
m.
l 1
TABLE III - Extra Receptors These are locations which do not necessarily fall into the exact grid of 16 compass directions and specified radii, but are chosen for their relevance to doses along some or all of the pathways of radiation exposure.
A table should be prepared on the attached form where:
X = is the distance from the mill center in kilometers (east Y = is the distance from the mill center in kilometers (north)
Z = is the height (elevation) of the location with respect to the mill center, given in meters.
(All values may be positive or negative)
Coordinates - with respect to mill center Receptors X(km)
Y(km)
Z(m) 1.
Marquez 2.
Seboyeta 3.
Mosquino 4.
Bibo 5.
Anaconda Housing 6.
Paquati 7.
Laguva 8.
Mesita 9.
New Housing south of Mesita
- 10. Sohio L-Boi Ranch
- 11. Juan Tafoya Grant 12.
N, S, E & W site boundary
- 13. Others l
- l GULF MINERAL RESOURCES The following information is requested of Gulf Mineral Resources for use in the radiological assessment:
1.
For each of the three attached forms, provide the information as discussed in the respective cover sheets.
2.
In the Environmental Report,1230 Pci/gm is listed as the specific activity of Ra 226 in the tailings:
a)
Is a ratio of U238:Th230:Ra226:Pb210 assumed?
b)
If so, what is the ratio and the activities?
c) What are the values for sands and slimes?
d)
If and average activity is used, how was it arrived at?
3.
What portion of the tailings is foreseen to be covered by water, or other attenuating substance?
TABLE I - Extra Receptors These are locations which do not necessarily fall into the exact grid of 16 compass directions and specified radii, but are chosen for their relevance to doses along some or all of the pathways of radiation exposure.
On the first seven of these receptors, angles and distances have been given, but no elevations with respect to the mill center.
Other locations such as Grants, Milan, Marquez, San Fidel, etc.
have not been addressed.
A table should be prepared on the attached form, where X - is the distance from mill center in kilometers (east)
Y - is the distance from mill center in kilometers (north)
Z - is the height of the location (elevation) in meters with respect to the mill center (All values may be positive or negative)
EXTRA RECEPT 0RS Coordinates with respect to mill center Receptors X(km)
Y(km)
Z(m) 1.
Candelaria Residence 2.
Lee Ranch 3.
San Mateo 4.
Marcus Ranch 5.
Haspah 6.
Albuquerque 7.
N,S, E & W Site boundary 8.
Grants - Milan 9.
Marquez
- 10. San Fidel
- 11. Others
TABLE II - Demography - Population Distribution The population distribution shCJ1d be given in the following manner:
Sectors are marked off by the sixteen compass directions and radial distances along the compass directions up to 80 km (50 miles).
The distances (in km) should be broken up in fashion indicated on the following page.
i
til PnPULATIDM DTSTRIBUTION I
N NNE NE ENE E.
FSE
. S 'g
_ SSE; 3
WNd At NNw KILOMETERS I c.0 22.5 45.0 67.5.
90.0
!!2.5.135,0 157.5 1R0.3 202.5 275.0 247.5 270.0 292.5 315.0 337.5 0.0..
1 8
I*
._____4 I
..1 5
8 9
."S a 1.0 8
~
8 1.0 2.0 e
i i
2.'0 3.0 t
3.0 4.0 8
9 4.'0 5.0 t
~
t 5.*0 10.0 e
10.0 20.0 8
e
~
20.0 30.6 t
30.0 40.0 1
~
1 1 40.0 50.0 t
I 50.'0 60.0 t
e
~
1 60.0e70.0 8
I l 70.0 50.0 I
l l
9 9
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TABLE III - Annual Joint Relative Frequ ncy Distributions of Wind Direction, and Wint Jpeed by Atmospheric Stabili+r Class Wind Direction - is given in the 16 compass directions.
Wind Speed - is given in knots in the indicated classes:
0-3, 4-6, 7-10,11-16,17-21, >21 Atmospheric Stability - is given in the following manner:
A - Extremely unstable B - Moderately unstable C - Slightly unstable D - Neutral E - Moderately stable F - Very stable The following sheet should be prepared for each of these stability classes.
0 t
I S
54 N
EW
>O E I
a W
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P.
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i t
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W W
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M C
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m 9
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t o
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M O
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u uW E
W W
W W
3 3
3 1
H 2
W Z
a0 w
s0 ErJ 2
er) 2 3
Z 5
C 2
2 2
W W
W tra M
M to EO 3
3 K
2 2
'."J i
C en 2
4 M
M 9
4
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