HomeMy WebLinkAboutDRC-2005-001141 - 0901a0688081d043IxrBnxertoNAt,
Unaxruv (usa) -
ConponATroN
Independence Plaza, Suite 950 . 1050 Seventeenth Street r Denver, CO 80265 . 303 628 7798 (main) . 303 389 4125 (f.ax)
November 30, 2005
VIA FACSIMILE AND FIRST CLASS MAIL
Dane L. Finerfrock, Executive Secretary
Utah Radiation Control Board .tb
Utah Department of Environmental Quality . " ,i .,.\
168 North 1950 West $9" .'),,t'
P.O. Box 144810 --..'.:.''Salt Lake City, UT 84114-4810
Re: State of Utah Ground Water Discharge Permit No. tIW370004 (the
"GWDP") for the White Mesa Uranium Mill - Notice Pursuant to Part I.G.l(a)
Dear Mr. Finerfrock:
The White Mesa uranium mill (the "Mill") completed its third quarter groundwater
sampling under the GWDP on September 25,2005, the final analytical results of which
were received on November 21,2005.
Under the GWDP it is intended that background groundwater quality will be determined
on a well-by-well basis, as defined by the mean plus second standard deviation
concentration. The Mill is currently in the process of working with the Utah Division of
Radiation Control to establish background (including the mean plus standard deviation)
for all of the constituents being sampled under the GWDP. Until background is
established, the GWDP requires that constituent concentrations in each monitoring well
shall not exceed the Groundwater Control Limits ("GWCLs") set out in Table 2 of the
GWDP.
Pursuant to Part I.G.l.a) of the GWDP, please take notice that the concentrations of the
following constituents in the following monitoring wells sampled on September 23-25,
2005 exceeded their respective GWCLs in Table 2 of the Permit:
Table 1- GWCL Exceedances for the Quarter
Monitoring Welt Constifuent GWCL
fuetLl
Sample Result
furs/Ll
MW-3 (Class III Water)
MW-14 (Class III Water)
MW-26 (Class III Water)
MW-32 (Class III Water)
Manganese 400Uranium 15Chloroform 35Dichloromethane 2.5
(Methylene Chloride)
Thallium
Uranium
Manganese
Uranium
Cadmium
Iron
Manganese
Nickel
1.0
15
400
l5
2.5
5,500
400
50
1.60
35.9
2,110
67.5
1,160
t7.4
810
5.9
2.95
I1,500
4,580
67.0
It should be noted that this is the first notice of exceedance pursuant to Part I.G.l.a) of the
Permit for thallium and uranium in MW-3. Notices of exceedance have previously been
grven with respect to all of the other constituents in their respective wells indicated in
Table l above.
Unless the compliance status for any constituents in any wells is determined otherwise by
the Executive Secretary, the Mill will, pursuant to Part I.G.l.b)l) of the Permit,
commence or continue, as the case may be, accelerated sampling of each of the foregoing
constituents in its respective well on a monthly or quarterly basis, as applicable, as set
forth below:
Table 2 - Accelerated Monitoring Requirements as of November 300 2005
Monitoring Well Constituent Normal Accelerated
Frequency Frequency of
of Sampling Sampling
Commencement
of Accelerated
Monitoring
MW-l (Class II
Water)Semi- Quarterly
Annually
Tehahydrofuran 4th Quarter 2005
Monitoring Well Constituent Normal Accelerated
Frequency Frequency of
of Sampling Sampling
Commencement
of Accelerated
Monitoring
MW-3 (Class tII
Water)
MW-5 (Class II
Water)
MW-l I (Class II
Water)
MW-12 (Class III
Water)
MW-14 (Class III
Water)
MW-15 (Class III
Water)
MW-17 (Class III
Water)
Thallium
Uranium
Manganese
Fluoride
Manganese
Uranium
Tetrahydrofuran
Semi-
Annually
Semi-
Annually
Semi-
Annually
Semi-
Annually
Quarterly
Quarterly
Semi-
Annually
Semi-
Annually
Semi-
Annually
Quarterly
Quarterly
Quarterly
Quarterly
Monthly
Monthly
Quarterly
Quarterly
Quarterly
Monthly
Monthly
Quarterly
Quarterly
4th Quarter 2005
4th Quarter 2005
4th Quarter 2005
4th Quarter 2005
June 2005
June 2005
4th Quarter 2005
4th Quarter 2005
4th Quarter 2005
June 2005
June 2005
4th Quarter 2005
4th Quarter 2005
Iron
Lead
Manganese
Uranium
Selenium
Uranium
Quarterly
Quarterly
Semi-
Annually
Semi-
Annually
Uranium Semi-Quarterly 4th Quarter 2005
Monitoring Well Constituent Normal
Frequency
Accelerated
Frequency of
Commencement
of Accelerated
MW-18 (Class II
Water)
MW-19 (Class II
Water)
MW-26 (Class III
Water)
MW-32 (Class III
Water)
Thallium
Uranium
Selenium
Uranium
Manganese
Uranium
Chloroform
Dichloromethane
(Methylene
Chloride)
Berylium
Cadmium
hon
Lead
Manganese
Nickel
of Sa
Annuallv
Semi-
Annually
Semi-
Annually
Semi-
Annually
Semi-
Annually
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Sa
Quarterly
Quarterly
Quarterly
Quarterly
Monthly
Monthly
Monthly
Monthly
M
4th Quarter 2005
4tr quarter 2005
4th Quarter 2005
4th Quarter 2005
June 2005
June 2005
June 2005
September 2005
June 2005
June 2005
June 2005
June 2005
June 2005
June 2005
Monthly
Monthly
Monthly
Monthly
Monthly
Monthly
If you have any questions or require any further information, please contact the
4
undersigned.
cc:
Vice President and General Counsel
Ron Hochstein
Harold Roberts
T. Kenneth Miyoshi
Ron Berg
d#ab. Frvhenlund
INTERNATIVAL
URRtruutvt (usA)
ConponerroN
URRtruutvt (USA)
' !l0V-30-05 12:28 F rom: I UC 30338941 25 T-li3 P.0ll06 Job-367
Indcpendence Plaza, Sqite 950 1050 Scventecnth Street Denver, CO 80?65 303 628 7798 (main) 303 389 4125 (fax)
F'ACSIMILE TRANSMITTAL
TO:Dane L. Finerfrock, Executive Secretary FAxNo: (E0l) 533-4097
Utah Radiation Control Board,
Utah Department of Environmental Quality PHoNENo: (801) 536-4257
FROM: David C. Frydenlund DATE: November 30. 2005
International Uranium (USA) Corporation PAGE I OF: 6
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