Kennecott Uranium Company 42 Miles NW of Rawlins P.O. Box 1500 Rawlins, WY 82301-1500 USA T +1 (307) 328 1476 F +1 (307) 324 4925 November 2, 2020 WYPDES Permits Section Department of Environmental Quality/WDQ 200 W. 17th Street, 4th Floor Cheyenne, WY 82002 Attention: Kathy Shreve Subject: Re-submittal Renewal Application, WYPDES Permit: WY0026689 Enclosed please find Kennecott Uranium Company’s application to renew the Wyoming Pollutant Discharge Elimination System (WYPDES) Permit WY0026689. Please note that this is Kennecott's second time submitting this renewal application. The first application was submitted on 7/28/2020. The application that is attached address questions that Ms. Kathy Shreve had. The following applies to this renewal application: • This is an application for renewal of an existing permit (WY0026689). • Kennecott Uranium Company is sending this letter to notify your office that we do intend to renew WYPDES Permit WY0026689 and ask that the permit not be canceled on the 7/31/2020 permit expiration date. • Unfortunately, the previous site supervisor retired at the beginning of 2020 and contact information was not changed so the notification was not received by our new supervisor in order for the application to be completed with enough time for it to be reviewed and accepted/issued by WY DEQ before the 7/31/2020 permit expiration date. No discharge under this permit has occurred since spring 1983 (a period of over thirty-seven (37) years) following cessation of mining operations at the Sweetwater Uranium Project following a drop in uranium prices and loss of a uranium supply contract. If you have any questions please do not hesitate to contact me. Sincerely yours, Stephen Bourn General Manager cc: Leland Roberts Karl Kronfuss Official Use only Wyoming Pollutant Discharge Elimination System (WYPDES) Date Received: Department of Environmental Quality Application for Permit to Discharge Wastewater for: Industrial operations, Form G Please print or type. Submission of illegible materials will result in return of the application to the applicant. All items must be completed accurately and in their entirety or the application will be deemed incomplete and the processing will be delayed or application returned. An original signature of the applicant is required. Faxes cannot be accepted. 1. Check the box corresponding to the type of application being applied for: New x Renewal Major modification Permit number _____________WY0026689 Expiration Date: ________________07/31/2020 2. General Facility Location: Township(s) _____________________24 North Range(s) ____________________93 West 3. Facility Street address if applicable: _________________________________________________________________2938 Minerals X Road (42 miles Northwest of Rawlins) 4. Receiving Waters __________________________________________________________Unnamed playa lake on Battles Springs Flat 5. Name of the facility producing the discharge ______________________________________________________________________________________Kennecott Uranium Company 6. Standard Industrial Classification code (SIC Code) _ ________________________1094 and primary industrial category, per Table I, Appendix B (If Applicable): _________________________________________________.Uranium ores mining and/or beneficiating 7. Permittee and Consultant (if applicable) Contact Information: Permittee Contact Name Consultant Contact Name Karl Kronfuss Company Name Company Name Kennecott Uranium Company Mailing Address Mailing Address PO Box 1500 City, State, and Zip Code City, State, and Zip Code Rawlins, Wy 82301-1500 Telephone Number Telephone Number 307-328-1478 E-Mail Address E-Mail Address [email protected] Preference for contact: Preference for contact: E-Mail 8. Status of applicant: Federal State x private public Other ________________ 9. Status of applicant (check more than one): x Owner x Operator 10. Please include a brief description of the nature of the business conducted at this facility and principal products or services provided by the facility. _________________________________This facility is a uranium mine (WYDEQ ________________________________________________________________________ Permit to Mine #481) with an associated conventional uranium mill licensed by the Nuclear __________________________________Regulatory Commission (NRC), Source Materials License #WYSUA-1350_______________________________ __________________________________________________________________________________________________________ 11. Please describe each type of process, operation or production area that contributes wastewater to the effluent for each outfall and the average flow which each process contributes. ________________________________________Mineral dewatering is the process contributing wastewater__________________________________________________________________ to each outfall at a total rate of 5.0 mg. __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ 12. Please include a brief description of the wastewater treatment at the facility, including the ultimate disposal of any solid or liquid wastes other than by discharge. __________________________________________________________________________________________________________The treatment facility would add barium chloride to the waste water stream. The barium chloride would precipitate the radium in __________________________________________________________________________________________________________settling ponds. These settling ponds would at the end of operations be covered with an earthen cover and the ground surface reclaimed __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ 13. For new facilities, the expected date of commencement of discharge. ___________________________________________N/A this is a renewal For existing facilities, provide actual flow data from each outfall within the last six months Will discharge be x continuous or intermittent? If the discharge is to be intermittent the following information for each outfall shall be provided: (I) Number of times per year the discharge is to occur. (II) Anticipated duration of each discharge. (III) Anticipated flow of each discharge. (IV) Months in which discharge is expected to occur. 14. If requesting modification of existing permit, describe modification requests: __________________________________________________________________________________________________________N/A __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ b. For each change or improvement, provided projected dates, as accurately as possible, for completion of each step listed below: 1. Begin Construction: ____________________________N/A 2. End Construction: ______________________________N/A 3. Begin Discharge: ______________________________N/A 4. Operational Level Attained:_______________________N/A Page 2 of 20 Landowner or lessee’s contact information (additional spaces may be added as necessary): Landowner #1 Name Landowner #2 Name U. S. Department of the Interior, Bureau of Land Management Mailing Address Mailing Address 1300 Third Street City, State, and Zip Code City, State, and Zip Code Rawlins, Wy 82301 b. Access Route: As part of the application, the applicant shall certify under penalty of perjury that the applicant has secured and shall maintain permission for Department of Environmental Quality personnel and their invitees to access the permitted facility, including (i) permission to access the land where the permitted facility is located, (ii) permission to collect resource data as defined by Wyoming Statute § 6-3-414, and (iii) permission to enter and cross all properties necessary to access the permitted facility if the facility cannot be directly accessed from a public road. A map of access route(s) to the facility shall accompany the application. 15. Facility Flow Diagram: Please provide a schematic line drawing showing the water flow and water balance through the facility. The water balance must show approximate average flows at intake and discharge points and between units, including treatment units. If a water balance cannot be determined, a pictorial description of the nature and amount of any sources of water and any collection and treatment measures may be provided. Note the following example: . 16. Outfall location: Complete the attached Appendix A, Table 1. Page 3 of 20 17. Outfall Characterization: Complete the attached Appendix A, Table 2. See application instructions for details. a. Will any flocculants (settling agents or chemical additives) be used to treat water prior to discharge? x YES NO If yes, list here the chemical name, manufacture, and purpose. Include MSDS sheets._Barium chloride / Solvay Chemicals and others / radium precipitation________________________ 18. Please complete Appendix A, Tables 2 and 3 for each outfall. 19. Complete Appendix A, Table 4 only if you are required by any Federal, State or local authority to meet any implementation schedule for the construction, upgrading or operations of wastewater treatment equipment or practices or any other