HomeMy WebLinkAboutDRC-2011-007261 - 0901a0688026138aOINISO
MINES
August 24, 2011
VIA E-MAIL AND OVERNIGHT DELIVERY
Mr. Rusty Lundberg
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144850
Salt Lake City, UT 84114-4850
.201 1-007 26 1
Denison Mines (USA) Corp.
105017th street, Suite 950
Denver, CO 80265
USA
Tel: 303 628-7798
Fax:303 389-4125
www.denisonmines.com
Re: State of Utah Groundwater Discharge Permit ("GWDP") No. UGW370004
Notice of Violation and Groundwater Corrective Action Order, Docket No. UGW20-01 - DUSA Plan
and Work Schedule ("Plan") to Drill and Install TW4-27 - Response to Conditional Approval Letter
Dear Mr. Lundberg:
This letter provides Denison Mines (USA) Corp's ("Denison's") response to the Utah Division of Radiation
Control's ("DRC's") May 26, 2011 Conditional Approval Letter of August 15, 2011 which Denison received on
August 19, 2011.
Denison appreciates DRC's timely approval of our Plan. We agree in principal with DRC's proposed changes
to item 2(c) of that Plan. We recommend the following additional word changes for further clarification.
Denison's proposed wording clarifications have been highlighted in yellow, below.
2(c) If the Executive Secretary determines, Sfter review of the se^jpncl Chloroform Monitoring Report that!
Contains the second of the two quarters of data -that the criteria specified in paragraph
1.2 above have not been satisfied with the addition of TW4-27, then Denison will submit within 30
calendar davs-of written nofce |from| the Executive Secretary after submittal of tho Quarterly Chloroform
Monitoring Report that contains the second of tho two quarters of data roforrod to abovo, a plan and
schedule for installation of one or more additional chloroform monitoring wells. The new welKs) must
show that the 70 ua/l chloroform isoconcentration line remains hydraulically up gradient to the new
welKs) and the groundwater contour lines must show the new welKs) are hydraulically down gradient to
TW4-4 and TW4-6.
Please contact me if you have any questions or require any further information.
Yours very truly,
DENISON MINES (USA) CORP.
Jo Ann Tischler
Director, Compliance and Permitting
N:\Chloroform\New Cfm well SE\Response to 08.15.11 cond approv Itr TW4-27\08.24.11 response to cond approv Itr.doc
Letter to Mr. Rusty Lundberg
Chloroform RFI Response
August 24, 2011
Page 2
cc: David C. Frydenlund
Harold R. Roberts
Stewart Smith, Hydrgeochem
David E. Turk
K.Weinel
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