DRC-2010-006234 - 0901a068801e5e06

C- 2010-006X3J
DENISO
MINES
Sent VIA Federal Express
December 1, 2010
Received
^ DEC 2010
1^ Division of
^"v) Radiation Control
Denison Mines (USA) Corp.
105017th Street, Suite 950
Denver, CO 80265
USA
Tel: [phone]
Fax : [phone]
www.denisonmines.com
Mr. Rusty Lundberg
Co-Executive Secretary
Utah Water Quality Board
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144810
Salt Lake City, UT 84114-4820
Re: Transmittal of Draft Movement Monitor and Settlement Monitor SOPs and
Revised 11 e.(2) SOP; White Mesa Mill Radioactive Materials License UT1900479
Dear Mr. Lundberg:
Enclosed are copies of the following Standard Operating Procedures (SOPs) for Denison Mines (USA)
Corp.'s White Mesa Mill required by the Utah Division of Radiation Control ("DRC") under
Radioactive Materials License No. UTI900479 (the "RML") as indicated below:
• One initial draft of a Settlement Monitoring SOP as required by RML Condition 11.7
• One initial draft of a Movement (Displacement) Monitoring SOP as required by RML
Condition 11.8
• One clean and one redline revision (No.2) of 1 le.(2) SOP as required by RML Condition
10.5E and by a letter and Request for Information of March 1, 2010 from David Rupp of DRC.
The revised 1 le.(2) SOP Revision No. 2 is redlined to indicate all changes since the existing approved
October 24, 2008 Revision NO. 1.
If you should have any questions regarding these documents please contact me.
Yours very truly,
P DENISON MINES (USA) CORP.
Jo Aim Tischier
Director, Compliance and Permitting
CC: David C. Frydenlund
Harold R. Roberts
David E. Turk
Kathy Weinel
DENISO
MINES
White Mesa Mill - Standard Operating Procedures Date: 11/2010 Revision: DUSA-1
Book #11: Environmental Protection Manual, SOP Section 5.0 Page 1 of 4
SETTLEMENT MONITORING
STANDARD OPERATING PROCEDURES
1. SETTLEMENT MONITORING
1.1 Purpose
This Standard Operating Procedure (SOP) describes the vertical monitoring of the Settlement
Monitors that are placed within the tailings management cell areas. This SOP will also indicate
how and where to document the findings. All data collected for these purposes, as described
below, will be included in an Annual Technical Evaluation Report (ATER) to be submitted to the
Executive Secretary of the Utah Division of Radiation Control (the Executive Secretary)
pursuant to License Condition 12.3 of the Radioactive Materials License (RML).
1.2 Locations and Frequency of Monitoring
Settlement Monitors are located on covered tailings cells and shall be surveyed on a monthly
basis by the Environmental Department staff and armually by a Utah Licensed Professional Land
Surveyor.
For any new Settlement Monitor installed (after June, 2010), within 30 days of the installation, a
Utah Licensed Land Surveyor will survey the monument. The locations of new Settlement
Monitors will be designated by the Mill Engineer as the intermediate cover is advanced over
tailings.
As stated above, Settlement Monitors will be placed on the tailing cells when temporary cover is
being advanced on the placed tailings. Settlement Monitors are also required on In-situ leach
(ISL) source disposal areas that have been closed to ftirther disposal pursuant to RML condition
10.5.A. Settlement monitors will be installed and surveyed by a Utah Licensed Land Surveyor
within 30 days of the completion of each ISL disposal area, and then annually after that point.
One Settlement Monitor will be required for approximately every 22,500 square feet or 5,000
cubic yards of ISL material. These monuments will be uniquely labeled to identify the specific
ISL material.
For ISL source disposal areas or trenches completed before April 1, 2010, the required settlement
stands will be placed and the initial elevation survey completed prior to June 1, 2010.
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Book #11: Environmental Protection Manual, SOP Section 5.0 Page 2 of 4
1.3 Design of Settlement Monitors
Each Settlement Monitor is built to be resistant to shifting due to frost heave, erosion, burrowing
animals and other environmental factors.
The design is a 2'x2' steel plate with a 1" steel pipe welded to the center ofthe plate. This steel
plate will be positioned by digging straight down in the desired location until tailing sands are
contacted. Upon contacting the sands, the steel plate and pipe are lowered and placed on top of
the sands. The hole will then be backfilled to within two feet of the ground surface. At this
point, a 3" steel outer casing will be placed over the 1" inner pipe. After this has been
completed, the last two feet of material will be backfilled. The top of the 3" casing will be
threaded to allow for a cap to be installed. The settlement monitors will have the threaded caps,
lubricated on an as needed basis, to allow the cap to be removed during the survey process.
In order to protect the settlement monitors fi-om man-caused damage, each settlement will be
bounded on three sides. This bounding will prevent equipment from accidentally coming in
contact with the settlement monitor. These devices will consist of three 3" steel pipes that will
be cemented into the ground. The interior of the pipe will also be filled with concrete. The
barriers will then be painted red as a visual reminder.
If damage, by any source, has occurred, the information will be documented and immediately
tumed in to the RSO, or designee. The RSO, or designee, will make notification to the
Corporate Compliance Director and a corrective action plan will be created for repairs and the
surveying and documentation of those changes.
1.4 Monthly Surveying
(i) The monthly survey will be performed by the Mill's Radiation Safety
Officer or designee (the "Surveyor") with the assistance of another Mill
worker (the "Assistant");
(ii) The survey will be performed using a survey instrument accurate to 0.1
feet, such as a Sokkai No. B21, or equivalent, together with a survey rod
having a visible scale in 0.1 foot increments;
(iii) The reference points are known points established by a professional
survey.
(iv) The surveyor will set up the survey instrument in a location where both
the applicable reference point and settlement monitor are visible.
(v) Once in location, the surveyor will ensure that the survey instrument is
level by centering the bubble in the level gauge on the survey instrument;
(vi) The assistant will place the survey rod vertically on the reference point.
The assistant will ensure that the survey rod is vertical by gently Tocking
the rod back and forth until the surveyor has established a level reading;
(vii) The surveyor will focus the cross hairs of the survey instrument on the
scale on the survey rod, and record the number (the "reference point
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White Mesa Mill - Standard Operating Procedures Date: 11/2010 Revision: DUSA-1
Book #11: Environmental Protection Manual, SOP Section 5.0 Page 3 of 4
reading"), which represents the niunber of feet the survey instrument is
reading above the reference point;
(viii) The assistant will then move to a designated settlement monitor. Once at
the monitor, the assistant will remove the steel cap and place the survey
rod on top of the 1" irmer pipe. A few of the original settlement monitors
do not have an inner pipe. For original settlement monitors without a 1"
irmer pipe, the assistant will place the survey rod on the lip of the
settlement monitor;
(ix) The assistant will hold the rod vertically and will ensure the survey rod is
vertical by gently rocking the rod back and forth until the Surveyor has
established a level reading;
(x) The surveyor will focus the cross hairs of the survey instrument on the
scale on the survey rod, and record the number (the "surface reading"),
which represents the number of feet the survey instrument is reading
above the settlement monitor.
The surveyor will calculate the elevation of the settlement monitor by adding the
reference point reading to the reference point elevation and then subtracting the surface
reading for the settlement monitor, and will record the number accurate to 0.1 feet. The
elevation information will be maintained within the Environmental Department records.
The monthly documentation of the readings will be recorded on the Monthly Tailings
Inspection Form. The form can be found in Section 3.1 of the Environmental Protection
Manual.
1.5 Monitoring and Maintenance of Settlement Monitors
1.5.1 Monitoring and Documentation of Condition of Devices
The Movement Monitors will be maintained so that the monuments remain in reliable, good
working condition. Conditions at and in the vicinity of the monitoring devices will be inspected
monthly by Enviroimiental Department staff. Any observations will be recorded on the monthly
tailings inspection report form.
On an annual basis, each monument will be photographed to document conditions at the
monitoring areas. Additionally, photographs will be taken following any instances of unusually
severe weather or incidents involving equipment if they result in physical damage or disturbance
to any settlement monitoring device, or significant changes to the ground areas adjacent to or
surrounding the settlement monitor.
1.5.2 Maintenance of Monitors
If any settlement monitoring device is irreparably damaged as a result of environmental stresses
or man-caused contact, it will be promptly replaced with an identical or equivalent device. The
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White Mesa Mill - Standard Operating Procedures Date: 11/2010 Revision: DUSA-1
Book #11: Environmental Protection Manual, SOP Section 5.0 Page 4 of 4
replacement device will be placed in the same location from which the damaged device was
removed. Data from the new device will be correlated to data fi-om the removed damaged device
as follows:
1. When a new device is installed, a Utah-Licensed Land Surveyor will survey and map the
location of the new device as well as that of the nearest (undamaged) devices on either
side ofthe new device.
2. If the survey indicates there has been less than 0.1 foot of vertical change in the location
of the undamaged devices, no adjustment will be made to the survey data of the new
device.
3. If the survey indicated 0.1 foot or greater of vertical change to either of the imdamaged
devices, the survey results for the new device will be adjusted by the average change
observed in the two adjacent devices. This adjustment will be documented in the Utah-
Licensed Land Surveyors report and in the annual ATER.
1.6 Performance Criteria and Data Validation
When the monthly data has been collected, the information will be reviewed for any errors
and/or major changes in the vertical movement on the settlement monitors. If there is a
difference of 0.1 foot, then the corrective actions will be taken as follows:
1 Resurvey the settlement monitor that shows vertical movement of 0. foot.
2 Document site conditions.
3 Prepare a document to the Corporate Compliance Director stating possible causes (i.e.
man-caused contact, environmental stresses, or burrowing animals, etc.).
4 Report this information to the Executive Secretary within a timely manner and include in
that notification the investigation steps, movement evaluation, and corrective action
steps.
On an annual basis, a Utah Licensed Professional Engineer shall review and analyze the data and
then certify the data, which will be submitted as part of the ATER as required by RML Condition
12.3.
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White Mesa Mill - Standard Operating Procedures Date: 11/2010 Revision: DUSA-1
Book #11: Environmental Protection Manual, SOP Section 5.1 Page 1 of 3
MOVEMENT (DISPLACEMENT) MONITOR
STANDARD OPERATING PROCEDURES
1. MOVEMENT (DISPLACEMENT) MONITOR
1.1 Purpose
This Standard Operating Procedure (SOP) describes methods for monitoring the vertical and
horizontal movement of Movement (Displacement) Monitors that are placed along the
constructed dike portions of the tailings cells. All data collected for these purposes, as described
below, will be included in an Annual Technical Evaluation Report (ATER) to be submitted to the
Executive Secretary of the Utah Division of Radiation Control (the Executive Secretary)
pursuant to License Condition 12.3 of the Radioactive Materials License (RML).
1.2 Locations and Frequency of Monitoring
Within 30 days of completion of construction activities. Movement Monitors will be installed
and surveyed by a Utah Licensed Land Surveyor. The installation of these movement monitors
will be along the exposed dike of the tailing cells.
All new movement monitors (installed after June, 2010) will be surveyed by a Utah Licensed
Land Surveyor semi-annually for the first three years. After three years, each new movement
monitor (installed after June, 2010) will be surveyed annually. All existing movement monitors
(installed prior to June 2010) will be surveyed on an annual basis.
On an annual basis, a Utah Licensed Professional Engineer will review, analyze, and certify the
data which will be submitted as part of the ATER as required by RML License Condition 12.3.
1.3 Design of Settlement Monitors
Each Movement Monitor is built to be resistant to shifting due to frost heave, erosion, burrowing
animals and other environmental factors.
The Movement Monitor placement will be established by digging a hole in the desired location,
to minimize accidental damage to the monument. A piece of rebar, 24 inches in length, will be
driven into the hole. The hole will be back filled and the top of the rebar will be below surface
grade. Each monvunent will be individually tagged and numbered.
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White Mesa Mill - Standard Operating Procedures Date: 11/2010 Revision: DUSA-1
Book #11: Environmental Protection Manual, SOP Section 5.1 Page 2 of 3
1.4 Monitoring and Maintenance of Movement Devices
1.4.1 Monitoring and Documentation of Condition of Devices
The Movement Monitors will be maintained so that the monuments remain in reliable, good
working condition. Conditions at and in the vicinity of the monitoring devices will be inspected
by the Utah-Licensed Land Surveyor on the same schedule as the surveys discussed in Section
1.2, and documented in the surveyor's written reports and in the annual ATER.
1.4.2 Maintenance of Monitors
The Movement Monitors will be installed in such a way to prevent damage by equipment. The
Movement Monitors will be installed such that the monument is below the actual ground surface
level, so the potential for damage by equipment is minimized. However, if a monument is
disturbed, the information will be immediately given to the RSO, or designee. The RSO, or
designee, will make notification to the Corporate Compliance Director and a corrective action
plan will be created for repairs and the surveying and documentation of any changes.
If any Movement Monitoring device is irreparably damaged as a result of environmental stresses
or man-caused contact, it will be promptly replaced with an identical or equivalent device. The
replacement device will be placed in the same excavated hole from which the damaged device
was removed. Data from the new device will be correlated to data from the removed damaged
device as follows:
1. When a new device is installed, a Utah-Licensed Land Surveyor will survey and map the
location of the new device as well as that of the nearest (undamaged) devices on either
side of the new device.
2. If the survey indicates there has been less than 0.1 foot of vertical or horizontal change in
the location of the undamaged devices, no adjustment will be made to the survey data of
the new device.
3. If the survey indicated 0.1 foot or greater of vertical or horizontal change to either ofthe
imdamaged devices, the survey results for the new device will be adjusted by the average
change observed in the two adjacent devices. This adjustment will be documented in the
Utah-Licensed Land Surveyors report and in the annual ATER.
1.5 Documentation
The Utah Licensed Land Surveyor will provide a written report of their findings along with a
map depicting the locations in relationship to the tailings cells. A brief summary of work and
analytical data will be provided in a written report by the Utah-Licensed Land Surveyor.
All documentation will be housed at the White Mesa Mill in the Environmental Department files
for inspection.
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Book #11: Environmental Protection Manual, SOP Section 5.1 Page 3 of 3
1.6 Performance Criteria and Data Validation
The data will be reviewed for any errors and or major changes in the vertical movement on the
movement monitors. If there is a difference of 0.1 foot, then the corrective actions will be taken
as follows:
1 Resurvey the movement monitor that shows vertical movement of 0.1 foot.
2 Document site conditions.
3 Prepare a document to the Corporate Compliance Director stating possible causes (i.e.
man-caused contact, environmental stresses, or burrowing animals, etc.).
4 Report this information to the Executive Secretary within a timely manner and include in
that notification the investigation steps, movement evaluation and corrective action steps.
Movement monitors that show vertical movement of 0.2 foot or greater for two consecutive
monitoring periods may be subject to accelerated monitoring at a frequency and in a manner
approved by the Executive Secretary.
On an annual basis, a Utah Licensed Professional Engineer will review, analyze, and certify the
data which will be submitted as part ofthe ATER as required by RML License Condition 12.3,
along with a description of any corrective actions performed.
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VSection 5 1 Movement Monitor SOP Nov 2010.doc
No.: PBL-10 DENISON MINES (USA) CORP.
Rev. No.: R-i2 STANDARE 1 OPERATING PROCEDURES Page I of 6
Date: ©etDec. 341, Title: 1 le.(2) Byproduct Disposal
200«10
1.0 Purpose
Denison Mines (USA) Corp. ("DUSA") receives lle.(2) byproduct material ("byproduct
material") from uranium in-situ leach operations for disposal under License Condition
10.5. The following procedure applies to acceptance, handling, and disposal of
byproduct material at the White Mesa Mill (the "Mill").
2.0 Prior to Shipment of Byproduct Material
All byproduct material must be approved for disposal by the Mill Radiation Safety
Officer ("RSO"), or his designee, prior to shipment to the Mill. The byproduct material
must conform to Titles 10 and 49 ofthe U.S. Code of Federal Regulations ("CFR") and
the Shipper must certify that the byproduct material does not contain hazardous waste as
defined in the Resource Convsersvation and Recovery Act ("RCRA").
Information regarding the byproduct material to be disposed of should be received prior
to receipt of the shipment at the Mill, and shall include:
1. The volume of material in cubic feet or yards, or quantity of drums and their
size.
A description of the material (e.g. sludge, process materials, filter media, pipe,
etc.)
A description of the shipping container (i.e. end dump trailer, intermodal
container, side dump container, etc.)
Results of analysis for Unat, Ra-226, Th-230 and Pb-210 on all sludges and soils
and other material that is suited to sample collection. If a representative sample
of the material was taken in connection with a previous shipment of material,
then the resuhs of that previous representative sample may be relied upon, and
may be referred to or restated in the documentation that accompanies the
shipment of the material. For byproduct material which is not suited to sample
collection (i.e. metals, process equipment, filter media, pipes, etc.) the Shipper
will determine the range, the average and the total activity, measured in mr/hr at
a range of one meter, for each shipment.
L A copy of the completed shipping manifest that will accompany the shipment
and the anticipated shipping date.
^ The RSO will also verifV. prior to receipt of anv shipment of byproduct material,
that the disposal of such byproduct material will not cause the Mill to exceed the limit of
5,000 cubic yards of byproduct material fi'om a single source, set out in Mill License
condition 10.5A
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No.: PBL-IO DENISON MINES (USA) CORP.
Rev. No.: R-42 STANDARD OPERATING PROCEDURES Page 2 of 6
Date: OetDec. 341, Titte: 1 le.(2) Byproduct Disposal
20e«I0
3.0 Designated Disposal Area
The RSO will designate from time to time one or more designated disposal areas
(each a "Designated Disposal Area") being a general area within a tailings cell for the
disposal of byproduct material. Each Designated Disposal Area must meet the following
criteria:
1. The Designated Disposal Area must be in an active tailings cell (i.e.. a tailings
cell that is not fully covered with interim cover):
2. The Designated Disposal Area must be on a tailings beach area ofthe cell or on
an area of the cell that is underlain by tailings sands:
3. There must be at least 4 feet of tailings sands under the Designated Disposal Area:
4. The Designated Disposal Area must be located at least 12 feet fi'om the sides or
dikes of the tailings cell:
6.
The elevation of the Designated Disposal Area once filled with byproduct
material must not exceed the plane or grade of the elevation of the uppermost
flexible membrane liner of the tailings cell:
Detailed engineering drawings must have been prepared and kept on file at the
Mill that demonstrate for each Designated Disposal Area that:
a) There are at least 4 feet of tailings sands under the bottom of the Designated
Disposal Area: and
The bottom ofthe Designated Disposal Area is located at least 12 feet from the
sides or dikes of the tailings cells: and
Prior written approval must have been obtained from the Executive Secretary of
the Utah Radiation Control Board (the "Executive Secretary") for each
Designated Disposal Area, under Mill License condition 10.5C. and evidence of
such approval must be on file at the Mill.
7.
4.0 Notification to Executive Secretary
DUSA shall notify the Executive Secretary in writing at least 7 calendar days
prior to the proposed scheduled date for disposal of any byproduct material. Written
evidence of this notification will be kept on file at the Mill.
3^5.0 Byproduct Material Receiving
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No.: PBL-10 DENISON MINES (USA) CORP.
Rev. No.: R-t2 STANDARD OPERATING PROCEDURES Page 3 of 6
Date: OetDec. 341, Title: 1 le.(2) Byproduct Disposal
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4.
5.
When each truck driver enters the restricted area for the first time, the scale
house operator will provide hazard training for the driver. The driver will be
provided with the Safety Training Form (copy attached). All drivers will be
required to read the Safety Training Form and sign and date the Safety Training
Form indicating that they understand and agree to follow DUSA's safety rules
and procedures while on company property. The scale house operator will sign
the Safety Training Form as the instructor for DUSA. Completed Safety
Training Forms will be tumed in to the Safety Department for future reference.
Inspect all copies of the Shipping Manifest and the transporter's Bill of Lading to
ensure that the shipment is destined for the Mill and confirm with the RSO that
the shipment has been approved for receipt.
Record the inbound date and both the truck and trailer numbers on the Scale
house Weight Ticket (SWT).
Enter the loaded weight of the truck and trailer on the SWT.
The scale house operator will contact the Radiation Safety Department so that
the shipment can be escorted by Radiation Safety personnel to the ^Designated
dDisposal aArea in Cell 3 specified by the RSO.
4.^6.0 Byproduct Material Unloading
I, _Radiation Safety personnel will escort the shipment to the designated looation in
Cell 3 for unloading of the byproduct matcrial.The RSO will specify the specific
location within the broader Designated Disposal Area for disposal of the
shipment. In designating the specific location within the broader Designated
Disposal Area for disposal of the shipment, the RSO will ensure that all byproduct
material will be segregated from any Mill material and equipment disposed of in
the cell pursuant to Mill license condition 10.4. and that the byproduct material
from each in-situ leach source will be segregated from the byproduct material
from each other in-situ leach source.
4^ -Radiation Safetv personnel will escort the shipment to tho designated looation in
the Designated Disposal Area for unloading of the byproduct materialv
Radiation Safety personnel will escort the shipment to the designated location in
the Designated Disposal Area for unloading of the byproduct material.
The shipment will be transported to the Designated Disposal Area only on
established roadways onto the tailings cells. At no time will a shipment be
transported over or in a manner that will damage unprotected dikes, liners, other
structures or settlement monitors associated with anv of the tailings cells.
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Date: OetDec. 341, Title: 1 le.(2) Byproduct Disposal
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3v4^__Prior to unloading, the driver iswill be instructed to open or untarp the load. The
Radiation Safety personnel will visually inspect the byproduct material to ensure
that the material matches the material description on the shipping manifest. Any
discrepancies between the byproduct material received and the manifest
information will be reported to the RSO. Any byproduct material suspected of
not meeting the requirements set forth in Section 2.0 of this SOP will be kept
segregated from other waste material until a determination is made of its
acceptability for disposal.
5. If the 7 calendar day notice referred to in Section 4.0 above has not been given, or
the 7 davs have not lapsed, then the shipment may but is not required to be
contained in the shipping container on site until the required 7 day notice has been
given and the 7 calendar davs have lapsed.
.If the shipment is determined to be acceptable;- the following procedures will be
followed:
If the 7-day notice has been given under Section 4.0 above and the 7 calendar
days have lapsed, the byproduct material iswill then be_unloaded in the designated
area. If such notice has not been given or if such 7 day period has not lapsed, then
ai
the byproduct material will be unloaded in an area of the tailings cell that is not
covered with interim cover and from which the material can be removed if
necessary. Once the required notice has been given and the required 7 days have
lapsed, the byproduct material will then be placed into the designated area.
3^b}___If the material is in a self-unloading container, the driver iswill be
instructed to unload ensuring all personnel are clear of the trailer and the
immediate area. Byproduct material will be dumped from the transport in a safe
manner to minimize dust. If the material requires unloading by a fork truck, a
ramp will be installed and unloading will proceed.
4zc} After unloading, a photo of the unloaded material will be taken which is
attached to the shipping documentation for verification of shipment contents.
d) The location of the shipment of the byproduct material will be documented on the
plat of €eH-^each Designated Disposal Area illustrating the disposal area within
the Designated Disposal Area where the byproduct material will be disposed ofal
&7e} Beta-gamma measurements will be taken at several locations around the
unloaded material. This information will be recorded on the Radiation
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facilities and Mill Waste Disposal/PBL-10 1 le (2) SOP Rov 1 (12 01 10) (2).docZ:VDAVEVWhite Mesa
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No.: PBL-IO DENISON MINES (USA) CORP.
Rev. No.: R-42 STANDARD OPERATING PROCEDURES Page 5 of 6
Date: OetDec. 341, Title: le.(2) Byproduct Disposal
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Department's copy of the shipment documentation. The measurement range in
mr/hr at 1 meter, and the average measurement, measured in mr/hr at I meter,
shall be recorded.
TrflMeasurements using a photoionization detection meter ("PID") will be taken at
several locations around the unloaded material to ensure that there are no organics
present. The information will be recorded on the Radiation Department's copy of
the shipment documentation. If organics are detected, the RSO must be advised,
and no compaction or covering activities relating to the shipment shall occur until
specifically instructed by the RSO. The RSO will determine if any additional
safety precautions are required to be taken by workers or otherwise as a result of
the detection of the organics, and will implement any such precautions. The RSO
will also contact DUSA corporate regulatory personnel and the shipper to verify
that the detected organics are lle.(2) byproduct material from the shipper's ISL
facility. Once the RSO has verified that the organics are ^byproduct Mmaterial
compaction and covering activities will proceed.
^£i__A breathing zone sample will be taken periodically during unloading and
cover activities. If the gross alpha exceeds 25% of the applicable DAC, then the
RSO will be notified, and all other unloading activities of byproduct material
from that particular ISL site will require the use of respiratory protection, until
further notice by the RSO.
9.h) After unloading the byproduct material, replace the tarp or close the
trailer, unless the trailer is being decontaminated for unrestricted release.
^^iL__Direct the driver back to the scales for an empty weight.
SWT.
_The scale house operator will record the empty weight on the appropriate
5^7.0 Covering of Byproduct Material
1. After the byproduct material has been accepted by the RSO, or his designee, the
byproduct material will be spread within the designated area within the
Designated Disposal Area to facilitate compaction and covering.
2. The byproduct material will be compacted with at least one pass of the
construction equipment prior to placing an additional layer.
3. Free volumes in the byproduct material will be minimized by filling, sectioning,
or crushing. Random fill or tailings will be used to fill voids in and around the
byproduct material.
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10 1 le (2) SOP Rev 1 (12 01 10)
(2).dochttp://i^tra^et.deniso^mi^os.conl/donvor,'Executive/DAVEA^^lite Mesa Mill/1 lo.(2) from ISL
facilities and Mill Waste Disposal/PBL 10 1 lo (2) SOP Rov 1 (12 01 10) (2).docZ:VDAVEVWhite Mesa
MillVl le.(2) from ISL facilities and Mill Wasto DisposalVPBL 101 le (2) SOP Rov 1 (10.29.08).doc
No.: PBL-10 DENISON MINES (USA) CORP.
Rev. No.: R-42 STANDARD OPERATING PROCEDURES Page 6 of 6
Date: OetDec. 341, Title: 1 le.(2) Byproduct Disposal
200810
4. All contaminated equipment shall be dismantled, crushed, or sectioned to
minimize void spaces. Barrels containing waste other than soil or sludges shall be
emptied into the disposal area and the barrels crushed. Barrels containing soil or
sludges shall be verified to be full prior to disposal. Barrels not completely full
shall be filled with tailings or soil.
_A one foot thick, or thicker, cover comprised of native soil will be placed over the
byproduct material working area. The fill and cover material will be compacted
with at least one pass of the construction equipment.
5T
The RSO or his designee will inspect the placement of the byproduct material
prior to covering to physically verify that the procedures in this Section 7.0 have
been adequately performed.
N:VSOPs and ProceduresVDraft tailings SOPs Nov 201OVPBL-10 11 e (2) SOP Rev 1 (12 01 10)
(2).dochttp://intranet.deniaonmine5.coni/denver/Exeoutive/DAVE/White Mesa Mill/1 le.(2) from ISL
facilities and Mill Waste Disposal/PBL 10 1 le (2) SOP Rev 1 (12 01 10) (2).docZ:VDAVEVWhitc Mesa
MillVl lo.(2) from ISL facilities and Mill Waste DisposalVPBL 101 lo (2) SOP Rev 1 (10.29.08).doc
No.: PBL-10 DENISON MINES (USA) CORP.
Rev. No.: R-4-2 STANDARE OPERATING PROCEDURES Page 7 of 6
Date: OetDec. 341, Title: 1 le.(2) Byproduct Disposal
200810
6;;O8.0 Decontamination and Release of Trailers and Trucks
All trailers and trucks will be decontaminated after unloading prior to leaving the
Mill. Shippers or transporters will notify DUSA whether a specific trailer is to be
released for restricted or unresfricted use. Any trailers that are to be released for
restricted use will be decontaminated according to the requirements contained in DOT
Part 49 CFR 173.441(b) and 173.443. Any trailers that are to be released for unrestricted
use will be decontaminated according to the requirements found in Table 1 of the Nuclear
Regulatory Commission's (NRC's) Policy and Guidance Directive FC-85-23,
"Guidelines for Decontamination of Facilities and Equipment Prior to Release for
Unrestricted Use or Terminadon of Licenses for Byproduct, Source, or Special Nuclear
Material" issued May 1987. Trailers requiring repair will be decontaminated for
unrestricted release, to facilitate repairs by the transporter at the transporter's own site.
Trailers may be repaired without undergoing full decontamination if repaired within the
restricted area of the Mill.
For the appropriate decontamination procedures, refer to the following Standard
Operating Procedures for the appropriate conveyance:
End Dump Trailer SOP PBL-9
Intermodal Container SOP PBL-2
Standard Container Trailer SOP-PBL-2
7i09.0 Hazard Identification and Safetv
1. Required Personal Protective Equipment (PPE)
In all areas of the Mill covered by this procedure, hard hats, safety glasses and
steel-toed shoes are required at a minimum. These must be wom in the restricted
area of the Mill.
2. Indusfrial Hazards and Safetv
Use caution when the trailers are backing to the unloading area. a)
b) Ensure that all personnel within 50 feet of the area where an end dump trailer is
about to dump its load are aware that unloading is about to commence. Move at
least 25 feet away from the rear of the trailer during the initial unloading
operation.
c) Drivers must use caution during the unloading process and be aware of any
overhead hazards.
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10 1 le (2) SOP Rev 1(12 01 10)
(2).dochttp://intranet.denisonmines.coni/denyer/Executive/DAVE/White Mesa Mill/1 le.(2) from ISL
facilities and Mill Waste Disposal/PBL-10 1 le (2) SOP Rev 1(12 0110) (2).docZ:VDAVEVWhito Mesa
MillVl le.(2) from ISL facilities and Mill Waste DisposalVPBL 10_1 le (2) SOP Rev 1 (10.29.08).doc
No.: PBL-IO DENISON MINES (USA) CORP.
Rev. No.: R-42 STANDARD OPERATING PROCEDURES Page 8 of6
Date: OetDec. 341, Title: 1 le.(2) Byproduct Disposal
200810
d) Do not place any part of your body inside the trailer when the trailer is being
tipped and the tailgate is open. Only work around the tailgate after it has been
properly blocked open.
e) Use caution when entering or exiting equipment. Be sure to use the ladders and
hand rails. Do not jump off the equipment.
f) Always use a ladder when entering and/or exiting the interior of a trailer.
3. Mobile Equipment
a) Only trained and authorized persons may operate mobile equipment.
b) All mobile equipment shall be inspected by the operator and any safety defects
corrected before the equipment is used. If safe to do so, the equipment may be
driven to the shop for repairs. Otherwise, the equipment must be towed or
repaired at the location.
c) Audible backup alarms shall be in operating condition.
d) Walk around any piece of equipment before starting or moving it. Make certain
no one is in a dangerous position and there are no obvious defects or hazards.
e) Use caution when entering or exiting equipment. Be sure to use the ladders and
hand rails. Do not jump off the equipment.
f) Seat belts shall be used at all times when equipment is in motion.
g) Equipment shall be operated at a reasonable speed consistent with road and
weather conditions, subject to a maximum speed limit of 15 m.p.h.
h) Keep the cabs of equipment clean. Loose items that could jam controls or create
other hazards are not allowed.
i) Report all accidents to your supervisor regardless of how minor they are. If
property damage or personal injury is involved, do not move the equipment until
your supervisor has released it.
j) All gasoline engines must be shut off when refueling.
k) Keep equipment clear of edges, drop offs, and unstable banks. Maintain adequate
berms where required.
8^10.ODocumentation
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10 1 le (2) SOP Rev 1 (12 01 10)
(2).dochttp://intranet.denis i.oom/denver/Exeoutive/DAVE/White Mesa Mill/1 le.(2) from ISL facilities ond Mill Waste Disposal/PBL 10_lle (2) SOP Rev 1 (12 01 10) (2).docZ:VDAVEVWhito Mesa
MillVl le.(2) from ISL facilities and Mill Waste DisposalVPBL 10_1 lc (2) SOP Rev 1 (10.29.08).doc
No.: PBL-IO DENISON MINES (USA) CORP.
Rev. No.: R-1-2 STANDARD OPERATING PROCEDURES Page 9 of 6
Date: OetDec. 341, Title: 1 le.(2) Byproduct Disposal
200810
2.
3.
For each shipment of byproduct material the following records will be maintained
in the Mill's Radiation Department files:
• Shipper's Manifest and Bill of Lading.
• Laboratory/activity analysis of the byproduct material performed by
the Shipper.
• Completed SWT.
• 7-day notice to Executive Secretary.
• Photo of the byproduct material.
• Byproduct material radiological scan information.
• Breathing zone monitoring data, if applicable.
• Equipment release forms.
_The Mill will afee-maintain a plat of €etl-4each Designated Disposal Area, which
illustrates the location of each shipment of byproduct material.
The Mill will maintain on file a copy of the Executive Secretary's written
approval of each Designated Disposal Area.
An annual summary of the amounts of byproduct material disposed of in each
calendar year shall be sent to the Executive Secretary on or before November 1 of
the following calendar year.
2.4.
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10 lie (2) SOP Rev 1 (12 01 10)
(2).dochttp://intranet.denisonmines.com/denvcr/Executive/DAVE/Whitc Mesa Mill/1 le.(2) from ISL
facilities and Mill Wa.stc Disposal/PBL-10 lie (2) SOP Rev 1 (12 01 10) (2).docZ:VDAVEVWhite Mesa
MillVl le.(2) from ISL facilities and Mill Waste DisposalVPBL-10_l le (2) SOP Rev 1 (10.29.08).doc
SAFETY TRAINING FOR DELIVERV PERSONNEL
Welcome to Denison Mines (USA) Corp.'s, White Mesa Mill. In order to assure your safety while on
our property, we would like to acquaint you with the safety mles and procedures, which you will be
required to follow while on our property.
1.0 General Safetv
1. Approved hard hats and safety glasses are required at all times except when inside the cab of
your truck.
2. This is a smoke free facility. No smoking is allowed on the property. Eating anything,
drinking, chewing candy, gum or tobacco is also not allowed in the Mill Restricted Area due
to radiation hazards.
3. Maintain a safe speed at all times when driving in the Mill Restricted Area. The maximum
speed limit is posted at 15 m.p.h. Denison Mines (USA) Corp.'s equipment has the right of
way on the ore pad and Mill roadways.
4. Be aware of the possibility of a truck tuming over while dumping. Ensure that the truck is on
level ground and brakes are set prior to dumping.
5. Check for potential overhead hazards prior to dumping.
6. If material is hung up in the trailer bed, it is not permissible to work in the bed while it is in the
dump position. If it is necessary to get in the bed of the trailer to free a hang up, the bed must
be lowered.
7. Be aware of slippery conditions on the ore pad during periods of inclement weather.
8. Be aware of the potential for ice build-up on and around the decontamination pad during
periods of cold weather.
9. Use caution when entering or exiting equipment.
2.0 Radiation Safetv
1. All drivers are required to scan for alpha radiation prior to leaving the Mill Restricted Area.
2. All equipment, i.e. trucks and trailers, will be scanned for radiation prior to leaving the Mill's
Restricted Area.
Driver (Printed) Scale House Operator
Driver (Signature) Date
No.: PBL-10
Rev. No.: R-2
Date: Dec. 1,2010
DENISON MINES (USA) CORP.
STANDARD OPERATING PROCEDURES
Title: lle.(2) Byproduct Disposal
Page 1 of 6
1.0 Purpose
Denison Mines (USA) Corp. ("DUSA") receives lle.(2) byproduct material ("byproduct
material") from uranium in-situ leach operations for disposal under License Condition
10.5. The following procedure applies to acceptance, handling, and disposal of
byproduct material at the White Mesa Mill (the "Mill").
2.0 Prior to Shipment of Byproduct Material
All byproduct material must be approved for disposal by the Mill Radiation Safety
Officer ("RSO"), or his designee, prior to shipment to the Mill. The byproduct material
must conform to Titles 10 and 49 ofthe U.S. Code of Federal Regulations ("CFR") and
the Shipper must certify that the byproduct material does not contain hazardous waste as
defined in the Resource Conservation and Recovery Act ("RCRA").
Information regarding the byproduct material to be disposed of should be received prior
to receipt of the shipment at the Mill, and shall include:
1. The volume of material in cubic feet or yards, or quantity of dnmis and their
size.
2. A description of the material (e.g. sludge, process materials, filter media, pipe,
etc.)
3. A description of the shipping container (i.e. end dump trailer, intermodal
container, side dump container, etc.)
4. Results of analysis for Unat, Ra-226, Th-230 and Pb-210 on all sludges and soils
and other material that is suited to sample collection. If a representative sample
of the material was taken in connection with a previous shipment of material,
then the results of that previous representative sample may be relied upon, and
may be referred to or restated in the documentation that accompanies the
shipment of the material. For byproduct material which is not suited to sample
collection (i.e. metals, process equipment, filter media, pipes, etc.) the Shipper
will determine the range, the average and the total activity, measured in mr/hr at
a range of one meter, for each shipment.
5. A copy of the completed shipping manifest that will accompany the shipment
and the anticipated shipping date.
The RSO will also verify, prior to receipt of any shipment of byproduct material, that the
disposal of such byproduct material will not cause the Mill to exceed the limit of 5,000
cubic yards of byproduct material from a single source, set out in Mill License condition
10.5A
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10_1 le (2) SOP Rev 1 (12 01 10) (2)
Clean.doc
No.: PBL-10
Rev. No.: R-2
Date: Dec. 1,2010
DENISON MINES (USA) CORP.
STANDARD OPERATING PROCEDURES
Title: 1 le.(2) Byproduct Disposal
Page 2 of 6
3.0 Designated Disposal Area
The RSO will designate from time to time one or more designated disposal areas (each a
"Designated Disposal Area") being a general area within a tailings cell for the disposal of
byproduct material. Each Designated Disposal Area must meet the following criteria:
1. The Designated Disposal Area must be in an active tailings cell (i.e., a tailings
cell that is not fully covered with interim cover);
2. The Designated Disposal Area must be on a tailings beach area of the cell or on
an area ofthe cell that is imderlain by tailings sands;
3. There must be at least 4 feet of tailings sands under the Designated Disposal Area;
4. The Designated Disposal Area must be located at least 12 feet from the sides or
dikes of the tailings cell;
5. The elevation of the Designated Disposal Area once filled with byproduct
material must not exceed the plane or grade of the elevation of the uppermost
flexible membrane liner of the tailings cell;
6. Detailed engineering drawings must have been prepared and kept on file at the
Mill that demonstrate for each Designated Disposal Area that:
a) There are at least 4 feet of tailings sands under the bottom of the Designated
Disposal Area; and
b) The bottom of the Designated Disposal Area is located at least 12 feet from the
sides or dikes of the tailings cells; and
7. Prior written approval must have been obtained from the Executive Secretary of
the Utah Radiation Control Board (the "Executive Secretary") for each
Designated Disposal Area, under Mill License condition 10.5C, and evidence of
such approval must be on file at the Mill.
4.0 Notification to Executive Secretary
DUSA shall notify the Executive Secretary in writing at least 7 calendar days prior to the
proposed scheduled date for disposal of any byproduct material. Written evidence of this
notification will be kept on file at the Mill.
5.0 Byproduct Material Receiving
1. When each truck driver enters the restricted area for the first time, the scale
house operator will provide hazard training for the driver. The driver will be
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010\PBL-10_1 le (2) SOP Rev 1 (12 01 10) (2)
Clean.doc
No.: PBL-10
Rev. No.: R-2
Date: Dec. 1,2010
DENISON MINES (USA) CORP.
STANDARD OPERATING PROCEDURES
Title: 1 le.(2) Byproduct Disposal
Page 3 of 6
provided with the Safety Training Form (copy attached). All drivers will be
required to read the Safety Training Form and sign and date the Safety Training
Form indicating that they understand and agree to follow DUSA's safety rules
and procedures while on company property. The scale house operator will sign
the Safety Training Form as the instructor for DUSA. Completed Safety
Training Forms will be tumed in to the Safety Department for future reference.
2. Inspect all copies of the Shipping Manifest and the transporter's Bill of Lading to
ensure that the shipment is destined for the Mill and confirm with the RSO that
the shipment has been approved for receipt.
3. Record the inbound date and both the truck and trailer numbers on the Scale
house Weight Ticket (SWT).
4. Enter the loaded weight of the truck and trailer on the SWT.
5. The scale house operator will contact the Radiation Safety Department so that
the shipment can be escorted by Radiation Safety personnel to the Designated
Disposal Area specified by the RSO.
6.0 Byproduct Material Unloading
1. The RSO will specify the specific location within the broader Designated
Disposal Area for disposal of the shipment. In designating the specific location
within the broader Designated Disposal Area for disposal of the shipment, the
RSO will ensure that all byproduct material will be segregated from any Mill
material and equipment disposed of in the cell pursuant to Mill license condition
10.4, and that the byproduct material from each in-situ leach source will be
segregated from the byproduct material from each other in-situ leach source.
2. Radiation Safety personnel will escort the shipment to the designated location in
the Designated Disposal Area for unloading of the byproduct material.
3. The shipment will be transported to the Designated Disposal Area only on
established roadways onto the tailings cells. At no time will a shipment be
transported over or in a manner that will damage unprotected dikes, liners, other
structures or settlement monitors associated with any of the tailings cells.
4. Prior to unloading, the driver will be instructed to open or imtarp the load. The
Radiation Safety persoimel will visually inspect the byproduct material to ensure
that the material matches the material description on the shipping manifest. Any
discrepancies between the byproduct material received and the manifest
information will be reported to the RSO. Any byproduct material suspected of
not meeting the requirements set forth in Section 2.0 of this SOP will be kept
segregated from other waste material until a determination is made of its
NiVSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10J le (2) SOP Rev 1 (12 01 10) (2)
Clean.doc
No.: PBL-10
Rev. No.: R-2
Date: Dec. 1,2010
DENISON MINES (USA) CORP.
STANDARD OPERATING PROCEDURES
Title: 1 le.(2) Byproduct Disposal
Page 4 of 6
acceptability for disposal.
5. If the 7 calendar day notice referred to in Section 4.0 above has not been given, or
the 7 days have not lapsed, then the shipment may but is not required to be
contained in the shipping container on site until the required 7 day notice has been
given and the 7 calendar days have lapsed.
6. If the shipment is determined to be acceptable the following procedures will be
followed:
a) If the 7-day notice has been given under Section 4.0 above and the 7 calendar
days have lapsed, the byproduct material will then be unloaded in the designated
area. If such notice has not been given or if such 7 day period has not lapsed, then
the byproduct material will be unloaded in an area of the tailings cell that is not
covered with interim cover and from which the material can be removed if
necessary. Once the required notice has been given and the required 7 days have
lapsed, the byproduct material will then be placed into the designated area.
b) If the material is in a self-unloading container, the driver will be instructed to
unload ensuring all personnel are clear of the trailer and the immediate area.
Byproduct material will be dumped from the transport in a safe manner to
minimize dust. If the material requires unloading by a fork truck, a ramp will be
installed and unloading will proceed.
c) After unloading, a photo of the unloaded material will be taken which is attached
to the shipping documentation for verification of shipment contents.
d) The location of the shipment of the byproduct material will be documented on the
plat of each Designated Disposal Area illustrating the disposal area within the
Designated Disposal Area where the byproduct material will be disposed of
e) Beta-gamma measurements will be taken at several locations around the unloaded
material. This information will be recorded on the Radiation Department's copy
of the shipment documentation. The measurement range in mr/hr at 1 meter, and
the average measurement, measured in mr/hr at 1 meter, shall be recorded.
f) Measurements using a photoionization detection meter ("PID") will be taken at
several locations around the unloaded material to ensure that there are no organics
present. The information will be recorded on the Radiation Department's copy of
the shipment documentation. If organics are detected, the RSO must be advised,
and no compaction or covering activities relating to the shipment shall occur until
specifically instructed by the RSO. The RSO will determine if any additional
safety precautions are required to be taken by workers or otherwise as a result of
the detection of the organics, and will implement any such precautions. The RSO
will also contact DUSA corporate regulatory personnel and the shipper to verify
NiVSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10_1 le (2) SOP Rev 1 (12 01 10) (2)
Clean.doc
No.: PBL-10
Rev. No.: R-2
Date: Dec. 1,2010
DENISON MINES (USA) CORP.
STANDARD OPERATING PROCEDURES
Title: 1 le.(2) Byproduct Disposal
Page 5 of 6
that the detected organics are lie.(2) byproduct material from the shipper's ISL
facility. Once the RSO has verified that the organics are byproduct material
compaction and covering activities will proceed.
g) A breathing zone sample will be taken periodically during imloading and cover
activities. If the gross alpha exceeds 25% of the applicable DAC, then the RSO
will be notified, and all other unloading activities of byproduct material from that
particular ISL site will require the use of respiratory protection, until further
notice by the RSO.
h) After unloading the byproduct material, replace the tarp or close the trailer, unless
the trailer is being decontaminated for unrestricted release.
i) Direct the driver back to the scales for an empty weight.
j) The scale house operator will record the empty weight on the appropriate SWT.
7.0 Covering of Byproduct Material
1. After the byproduct material has been accepted by the RSO, or his designee, the
byproduct material will be spread within the designated area within the
Designated Disposal Area to facilitate compaction and covering.
2. The byproduct material will be compacted with at least one pass of the
construction equipment prior to placing an additional layer.
3. Free volumes in the byproduct material will be minimized by filling, sectioning,
or crushing. Random fill or tailings will be used to fill voids in and around the
byproduct material.
4. All contaminated equipment shall be dismantled, crushed, or sectioned to
minimize void spaces. Barrels containing waste other than soil or sludges shall be
emptied into the disposal area and the barrels crushed. Barrels containing soil or
sludges shall be verified to be full prior to disposal. Barrels not completely fiill
shall be filled with tailings or soil.
5. A one foot thick, or thicker, cover comprised of native soil will be placed over the
byproduct material working area. The fill and cover material will be compacted
with at least one pass of the construction equipment.
6. The RSO or his designee will inspect the placement of the byproduct material
prior to covering to physically verify that the procedures in this Section 7.0 have
been adequately performed.
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10_1 le (2) SOP Rev 1(12 01 10) (2)
Clean.doc
No.: PBL-10
Rev. No.: R-2
Date: Dec. 1,2010
DENISON MINES (USA) CORP.
STANDARD OPERATING PROCEDURES
Title: 1 le.(2) Byproduct Disposal
Page 6 of 6
8.0 Decontamination and Release of Trailers and Trucks
All trailers and trucks will be decontaminated after unloading prior to leaving the
Mill. Shippers or transporters will notify DUSA whether a specific trailer is to be
released for restricted or unrestricted use. Any trailers that are to be released for
restricted use will be decontaminated according to the requirements contained in DOT
Part 49 CFR 173.441(b) and 173.443. Any trailers that are to be released for unrestricted
use will be decontaminated according to the requirements found in Table 1 of the Nuclear
Regulatory Commission's (NRC's) Policy and Guidance Directive FC-85-23,
"Guidelines for Decontamination of Facilities and Equipment Prior to Release for
Unrestricted Use or Termination of Licenses for Byproduct, Source, or Special Nuclear
Materiaf issued May 1987. Trailers requiring repair will be decontaminated for
unrestricted release, to facilitate repairs by the transporter at the transporter's own site.
Trailers may be repaired without undergoing full decontamination if repaired within the
restricted area of the Mill.
For the appropriate decontamination procedures, refer to the following Standard
Operating Procedures for the appropriate conveyance:
End Dump Trailer SOP PBL-9
Intermodal Container SOP PBL-2
Standard Container Trailer SOP-PBL-2
9.0 Hazard Identification and Safetv
1. Required Personal Protective Equipment (PPE)
In all areas of the Mill covered by this procedure, hard hats, safety glasses and
steel-toed shoes are required at a minimum. These must be wom in the restricted
area ofthe Mill.
2. Industrial Hazards and Safetv
a) Use caution when the trailers are backing to the unloading area.
b) Ensure that all personnel within 50 feet of the area where an end dump trailer is
about to dump its load are aware that unloading is about to commence. Move at
least 25 feet away from the rear of the trailer during the initial unloading
operation.
c) Drivers must use caution during the unloading process and be aware of any
overhead hazards.
d) Do not place any part of your body inside the trailer when the trailer is being
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10_1 le (2) SOP Rev 1 (12 01 10) (2)
Clean.doc
No.: PBL-10
Rev. No.: R-2
Date: Dec. 1,2010
DENISON MINES (USA) CORP.
STANDARD OPERATING PROCEDURES
Title: 1 le.(2) Byproduct Disposal
Page 7 of 6
tipped and the tailgate is open. Only work around the tailgate after it has been
properly blocked open.
e) Use caution when entering or exiting equipment. Be sure to use the ladders and
hand rails. Do not jump off the equipment.
f) Always use a ladder when entering and/or exiting the interior of a trailer.
3. Mobile Equipment
a) Only trained and authorized persons may operate mobile equipment.
b) All mobile equipment shall be inspected by the operator and any safety defects
corrected before the equipment is used. If safe to do so, the equipment may be
driven to the shop for repairs. Otherwise, the equipment must be towed or
repaired at the location.
c) Audible backup alarms shall be in operating condition.
d) Walk around any piece of equipment before starting or moving it. Make certain
no one is in a dangerous position and there are no obvious defects or hazards.
e) Use caution when entering or exiting equipment. Be sure to use the ladders and
hand rails. Do not jump off the equipment.
f) Seat belts shall be used at all times when equipment is in motion.
g) Equipment shall be operated at a reasonable speed consistent with road and
weather conditions, subject to a maximum speed limit of 15 m.p.h.
h) Keep the cabs of equipment clean. Loose items that could jam controls or create
other hazards are not allowed.
i) Report all accidents to your supervisor regardless of how minor they are. If
property damage or personal injury is involved, do not move the equipment until
your supervisor has released it.
j) All gasoline engines must be shut off when refueling.
k) Keep equipment clear of edges, drop offs, and unstable banks. Maintain adequate
berms where required.
10.0 Documentation
1. For each shipment of byproduct material the following records will be maintained
NiVSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10_1 le (2) SOP Rev 1(12 01 10) (2)
Clean.doc
No.: PBL-10
Rev. No.: R-2
Date: Dec. 1,2010
DENISON MINES (USA) CORP.
STANDARD OPERATING PROCEDURES
Title: 11 e.(2) Byproduct Disposal
Page 8 of6
in the Mill's Radiation Department files:
3.
Shipper's Manifest and Bill of Lading.
Laboratory/activity analysis of the byproduct material performed by
the Shipper.
Completed SWT.
7-day notice to Executive Secretary.
Photo ofthe byproduct material.
Byproduct material radiological scan information.
Breathing zone monitoring data, if applicable.
Equipment release forms.
The Mill will maintain a plat of each Designated Disposal Area, which illustrates
the location of each shipment of byproduct material.
The Mill will maintain on file a copy of the Executive Secretary's written
approval of each Designated Disposal Area.
An annual summary of the amounts of byproduct material disposed of in each
calendar year shall be sent to the Executive Secretary on or before November 1 of
the following calendar year.
N:VSOPs and ProceduresVDraft tailings SOPs Nov 2010VPBL-10_1 le (2) SOP Rev 1 (12 01 10) (2)
Clean.doc
SAFETY TRAINING FOR DELIVERY PERSONNEL
Welcome to Denison Mines (USA) Corp.'s, White Mesa Mill. In order to assure your safety while on
our property, we would like to acquaint you with the safety rules and procedures, which you will be
required to follow while on our property.
1.0 General Safety
1. Approved hard hats and safety glasses are required at all times except when inside the cab of
your truck.
2. This is a smoke free facility. No smoking is allowed on the property. Eating anything,
drinking, chewing candy, gum or tobacco is also not allowed in the Mill Restricted Area due
to radiation hazards.
3. Maintain a safe speed at all times when driving in the Mill Restricted Area. The maximum
speed limit is posted at 15 m.p.h. Denison Mines (USA) Corp.'s equipment has the right of
way on the ore pad and Mill roadways.
4. Be aware of the possibility of a tmck tuming over while dumping. Ensure that the tmck is on
level ground and brakes are set prior to dumping.
5. Check for potential overhead hazards prior to dumping.
6. If material is hung up in the trailer bed, it is not permissible to work in the bed while it is in the
dump position. If it is necessary to get in the bed of the trailer to free a hang up, the bed must
be lowered.
7. Be aware of slippery conditions on the ore pad during periods of inclement weather.
8. Be aware of the potential for ice build-up on and around the decontamination pad during
periods of cold weather.
9. Use caution when entering or exiting equipment.
2.0 Radiation Safety
1. All drivers are required to scan for alpha radiation prior to leaving the Mill Restricted Area.
2. All equipment, i.e. tmcks and trailers, will be scanned for radiation prior to leaving the Mill's
Restricted Area.
Driver (Printed) Scale House Operator
Driver (Signature) Date