DRC-2009-006033 - 0901a06880147686

Loren Morton - Re: FW: Fwd: White Mesa Mill Proposed Reagent
Building
Page 1 of4
From: Loren Morton
To; Harold Roberts
Date: 11/4/09 10:02 AM
Subject: Re: FW: Fwd: White Mesa Mill Proposed Reagent Building
CC: Dane Finerfrock; Dave Rupp; John Hultquist; Phillip Goble
Harold,
We have reviewed your October 20, 2009 email response regarding the Reagent Storage Building (RSB) at DUSA. After this
review, we have determined that there Is no need for Ground Water Permit or Radioactive Materials License ajthorization of the
RSB, at this time, based on the following conditions / assumptions:
1. Building is used for reagent storage only, and is not used for the management of radioactive byproduct or source material.
2. Concrete pad and RSB will contain and control all materials stored inside and prevent any release thereof to the environment,
including, but not limited to nearby soils, surface water, groundwater, or soil / rock foundation.
3. Site grade near the building will be designed and constructed to prevent stormwater run-on from entering the RSB.
4. Any material or liquids that accumulate in the floor sump of the RSB will be manually removed in a timely manner and
physically transferred to the tailings cells or input to the mill process.
5. DUSA will conduct periodic visual Inspection of the concrete floor and curb to identify damage or cracks that could compromise
Condition No. 2 above. In the event that DUSA observes any damage or cracks to the concrete surface or curb, DUSA will repair
said problems in a timely manner.
6. DUSA will include all measures, equipment and processes for decommissioning and decontaminating the RSB at time of closure
in the upcoming Reclamation Plan submission (Revision 4.0), to be provided the DRC in mid-November, 2009. Related costs for
said reclamation will also be included In the next surety evaluation report required by License Condition 9.5 (March 4, 2010), if not
sooner.
If these conditions and assumptions are acceptable, then DUSA is free to proceed with construction and use of the RSB.
If you have questions or concerns, please call me.
Loren
>>> Harold Roberts <[e-mail]> 11/2/09 5:31 PM >>>
Loren:
Do you have any more questions or comments on the reagent storage building concrete??
Harold Roberts
ExeCi'tivc Vice Pi'esidenl. US Opcralions
t: [phone] | f: (303) 3S9-4125
1050 171h Slreet. Suite 950. Denver. CO 80265
DENISON MINES (USA) CORP
wvw^. denison mi nes .com
This e-mail is Inlended for exclusive use the person(s) mentioned as the recipient(s). This message and any attached files wilh 11 are confidential and may contain pnvileged or propnetary
flle:/.C: Documents and Settings\Lmorton\Local Settings\Temp\XPgrpwise\4AF1513FEQDOMAINEQRA... 11/4/2009
Page 2 of4
information. If you are nol the intended reclplentf s) please delete this message and noiify ifie sender. You may not use. distribute pnnt or copy this message If you are nol the intended
recipient(s).
From: Harold Roberts
Sent: Tuesday, October 20, 2009 8:55 PM
To: [e-mail]; Steve Landau; [e-mail]; [e-mail]; [e-mail]
Subject: RE: Fwd: White Mesa Mill Proposed Reagent Building
Loren:
See the attached responses to you questions on the Reagent Storage Building.
From: Richard Bartlett
Sent: Tuesday, October 20, 2009 3:21 PM
To: Harold Roberts
Subject: FW: Fwd: White Mesa Mill Proposed Reagent Building
Harold, we have addressed each of the issues. Is this enough information? Rich
Richard Bartlett
.'.'•.'.' Ma'.acjei-
t: J35-678-2221 x105 | f" 435-678-2224
5425 S. Highway 191. POBox S09, Blanding, UT 84511
DENISON MINES (USA) CORP
v/ww.denisonmines.com
This e-mail is Intended for exclusive use the persor(s) mentioned as the recipients). This message and any attached files with it are conftdenlial and may contain privileged or proprietary
Information. If you are not the intended recipienl(s) please delete this message and notify the sender. You may not use. distnbute print or copy this message if you are nol the Intended
reclpieni(s).
From: Steve Snyder
Sent; Tuesday, October 20, 2009 3:09 PM
To: Richard Bartlett
Subject: RE: Fwd: White Mesa Mill Proposed Reagent Building
1. Ts the structure a building or an outdoor pad? Some confusion exists here. Ts the feature a concrete pad that is
attached to a building, or is it a building with a roof and 3-walls?
a. The stnicture is a Lester Uni 1 Post Frame Pre Engineered Storage Shed w/ Single Slope Roof Tt has 3
walls and one open side. The open side will be protected from weather by fle.xible curtians or doors to
reduce precipitation entering the enclosure. The concrete pad is a containment to be built within the
building. It will be fully surrounded by the building structure,
2. If the structure is abuilding with a roof and 3-walls. will what will site grade look like? Will there be any
potential for run-off to enter the building?
a. The site grade will be such that run-off will be prevented from entering the building. The curb on the back
and sides will keep run-off out and the grade around the front will run water away from the building.
3. What activities are proposed for the facility? Will the reagents be packaged in water-tight containers, or will they
be in bulk or loose form?
a. There will be both liquid and dry reagents stored in the building. The liquid reagents are stored in water-
tight containers. The dry reagents are in super sacks or bagged. These are not water-tight hence the need
for the building as protection for storage ofthe reagents. The concrete pad is secondary' containment.
4. Wliat kind of water or material vvill accumulate in the sump, and what will be its fate?
a. The sump will collect any liquid spills that may occur. Should this happen the sump will be pumped back
into a liquid container which will be kept for use in the process circuiL Should water collect for any reason
it would be disposed of in one oflhe tailings cells or in the Mill process.
flle://C:\Documents and Settings\Lmorton\Local Settings\Temp\XPgrpwise\4AF1513FEQDOMAINEQRA... 11/4/2009
Steve Snyder
f^i;:r'! C'l'jincci-
t: -135-678-2221 xlOI ) c" 435-459-9994 | f: 435-678-2224
6425 S. Highway 191. PO Box 809, Blandmg. UT 84511
Page 3 of4
DENISON MINES (USA) CORP
www.denisonmines.com
This B-mail is Intended for exclusive use the person(s) mentioned as the reciDienl(s). This message and any attached files wilh n are confidential and may contain privileged or propnetary
information. If you are not the Inlended reclplent(s) please delete this message and notify the sender. You may not use. dislribute pnnt or copy chis message if you are not me intended
recipient! s)
From: Richard Bartlett
Sent: Tuesday, October 20, 2009 2:34 PM
To: Steve Snyder
Subject: FW: Fwd: White Mesa Mill Proposed Reagent Building
Steve lets discuss and reply to Harold. Rich
Richard Bartlett
M-i! Klaii^ger
t: 435-678-2221 x105 | f: 435-678-2224
6425 S. Highway 191. POBox 809, Blanding. UT 84511
DENISON MINES (USA) CORP
www.denisonmines.com
This e-mail is iniended for exclusive use the person(s) mentioned a5 the reclpienl(s). This message and any attached files wMh it are confidential and may contain privileged or propnetary
Information. If you are not the Iniended recipientfs} p'ease delete lh>5 message and notify the sender. You may not use. distribute pnnc or copy this message If you are not tne Intended
reciplent(5).
From: Harold Roberts
Sent: Tuesday, October 20, 2009 2:24 PM
To: Richard Bartlett
Subject: Fw: Fwd; White Mesa Mill Proposed Reagent Building
Sent from my Verizon Wireless BlackBeiry
From: Loren Morton <LMORTON(gutah.gov>
Date: Tue, 20 Oct 2009 16:04:23 -0400
To: Harold Roberts<HRoberts{§denisonmines.com>
Cc: Steve Landau<[e-mail]>; Dane Finerfrock<[e-mail]>; Dave
Rupp<drupp@;utah.gov>; John Hultquist<[e-mail]>
Subject: Fwd: White Mesa Mill Proposed Reagent Building
Harold,
I have a few questions about the engineering drawing that Steve Landau emailed over yesterday regarding a new
Reagent Building. Questions are as follows:
1. is the structure a building or an outdoor pad? Some confusion exists here. Ts the feature a concrete pad that is
attached to a building, or is it a building with a roof and 3-walls?
2. If the structure is a building with a roof and 3-walls, will what will site grade look like? Will there be any potential
for run-off to enter the building?
3. Wliat activities are proposed for the facility? Will the reagents be packaged in water-tight containers, or will they be
in bulk or loose form?
4. What kind of water or material will accumulate in the sump, and what will be its fate?
Responses to these questions will help DRC decide if there is a need for design review and approval.
file://C:\Documents and Sertings\Lmorton\Local Settings\Temp\XPgrpwise\4AF1513FEQDOMAINEQRA... 11./4/2009
Page 4 of4
Thanks for your help,
Loren
Harold Roberts
F::iecut!-vt! Vice P'-n'^ident. US Qper^Hons
1: {303)389-1150 | f" [phone]
1050 17lh Street. Suite 950. Denver. CO 80265
DENISON MINES (USA) CORP
www.denisonmines.com
This e-mall Is intended for exclusive use trie person(s) mentioned as the recipient(s). This message and any attached files with It are confidential and may contain privileged or pn^prietary
information. If you are not the Intended reclplent(s) please delete this message and notify the sender. You may not use. distribute pritt or copy this message if you are not the intended
reclpient(s).
file:.VC:\Documents and Seltings\Lmorton\Local Settings\Temp\XPgrpwise\4AFl513FEQDOMAINEQRA... 11/4/2009