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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 IF AI.L PAGES ARE NO'f RECEIVED. PLEASE CALL: PHOMNo: (303) 389-4130 Please see attached letter dated November 30, 2005. IMPORTANT/CONFIDENTIALI FAX messages are sometimes received by persons other than to the person to whomthey are addressed as a result of equiprnent failure or humen error. 'l'his Communication is intended solely for the addressee shown above. Please notify our office immcdiatcly at any of the telephone or Fax numbers showr above if you arc not tha addresscc or someone responsible for delivering it to the W0 rctain all rights and privilcgcs as to this communication and prohibit any dissemination, distribution or copying by or to anyone thanthe addressee. Our office will arranee for its return bv the United States Postal Service or