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2009-05-19_REVISION - M1977285
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2009-05-19_REVISION - M1977285
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Last modified
6/15/2021 5:39:02 PM
Creation date
5/27/2009 10:39:03 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M1977285
IBM Index Class Name
REVISION
Doc Date
5/19/2009
Doc Name
EPP (AM-03) Attachment A: Transport; Att.B,1,2 Geochem. (part 2)
From
Denison Mines
To
DRMS
Type & Sequence
AM3
Email Name
RCO
Media Type
D
Archive
No
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are expected to be satisfied in all cases. It is also expected that the average reading in the • <br />occupied space of each truck cab will not exceed the DOT limit of 2 mrem/hr, specified in 49 <br />CFR 173.441(b)(4). <br />8.2. Gamma Radiation Survey (Transportation Index) <br />It is the responsibility of the Mine operator/owner to ensure that the radiation levels fall within <br />the applicable limits summarized in Section 8.1 above At a minimum, the Mine operator/owner <br />will perform the following surveys at the Mine site on a representative number of uranium ore <br />shipments from the Mine: <br />a) A beta/gamma survey will be conducted at various locations on all sides of the transport <br />vehicle to determine if the radiation level exceeds 200 mrem/hr at any point on the <br />external surface of the vehicle; <br />b) A gamma survey will be conducted at one meter from all sides of the transport trailer. <br />The average reading in mrem/hr will be recorded as the Transport Index for all uranium <br />ore shipments from the Mine; and <br />c) A gamma survey will be conducted within the cab of the transport tractor. The average <br />reading in mrem/hr will be recorded to verify that the occupied space will not exceed the <br />2 mrem/hr limit. <br />These surveys will be recorded and kept on file. • <br />In addition, the Mine operator/owner will perform (and document for the record) spot gamma <br />surveys on uranium ore shipments from time to time as it deems appropriate in order to ensure <br />that the regulatory standards are satisfied. <br />8.3. Removable Contamination Surveys <br />8.3.1. Vehicles Used Solely for Purposes of Transporting Ore from the Mine to the Mill. <br />49 CFR 177.843 provides that routine surface contamination surveys are not required at the Mine <br />site or at the Mill for any vehicle used solely for transporting bulk-unpackaged uranium ore from <br />the Mine to the Mill provided that: <br />a) a survey of the interior surface of the conveyance trailer (when empty) shows that the <br />radiation dose rate does not exceed 10 mrem/hr on contact or 2 mrem/hr at 1 :meter from <br />the interior surface. Since the conveyance, when filled with uranium ore is not expected <br />to exceed 2mrem/hr on contact, a surveyed dose rate from the interior surface (or any <br />other point on an empty trailer) should not exceed these limitations; <br />b) the vehicles are stenciled with the words "FOR RADIOACTIVE MATERIALS USE <br />ONLY" as described under Section 4(b) above; and <br />• <br />July 5, 2007 8 Rev 0
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