|
---|
Category:Letter
MONTHYEARML24234A0572024-08-15015 August 2024 U.S. Department of Energy Office of Legacy Management, Final Interim Treatment Plan for the Shiprock, New Mexico, Disposal Site ML24220A2402024-08-0808 August 2024 U.S. NRC Staff Review of July 2024, U.S. Department of Energy, Office of Legacy Management Draft Interim Treatment Plan for the Shiprock, New Mexico, Disposal Site ML24205A1252024-07-19019 July 2024 U.S. Department of Energy Office of Legacy Management Draft Interim Treatment Plan for the Shiprock, New Mexico, Disposal Site ML24122C6542024-05-0707 May 2024 U.S. Nrc’S Staff Review of March 2024, U.S. DOE-LM to U.S. NRC Staff Review of the Draft Reevaluation Contaminants of Concern (Cocs) for the Shiprock, New Mexico, Disposal Site ML24078A3172024-03-18018 March 2024 U.S. Department of Energy Office of Legacy Management Response to the U.S. Nuclear Regulatory Commission’S Staff Review of the Draft Reevaluation of Ammonia, Manganese, Selenium, and Strontium as Contaminants of Concern (Cocs) for the Shipr ML24067A3252024-03-0707 March 2024 U.S. Department of Energy, Office of Legacy Management, 2023 Annual Site Inspection and Monitoring Report for Uranium Mill Tailings Radiation Control Act Title I Disposal Sites ML22353A6342022-12-16016 December 2022 U.S. Department of Energy, Office of Legacy Management, Response to NRC Staff Review of the Draft Sampling and Analysis Plan for the Shiprock Evaporation Pond Decommissioning Project at the Shiprock, New Mexico, Disposal Site ML22349A1092022-12-15015 December 2022 NRC Staff Review of Environmental Assessment for the Evaporation Pond at the Shiprock, New Mexico, Disposal Site (DOE/EA-2195) (Docket Number WM-00058) ML22342B2712022-12-0808 December 2022 U.S. Department of Energy Office of Legacy Management Response to the U.S. Nuclear Regulatory Commission Staff Review of the DOE Report Investigation of Non-Mill Related Water Inputs to the Terrace Alluvium at Shiprock, New Mexico ML22327A2322022-11-17017 November 2022 Submittal of Environmental Assessment for the Evaporation Pond at the Shiprock, New Mexico, Disposal Site (DOE/EA-2195) ML22286A1782022-10-14014 October 2022 NRC Staff Review of Draft Sampling and Analysis Plan for the Shiprock Evaporation Pond Decommissioning Project at the Shiprock, New Mexico, Disposal Site (Docket Number WM-00058) ML22270A0672022-09-27027 September 2022 U.S. Department of Energy Office of Legacy Management Drilling and Investigative Activities at the Shiprock, New Mexico, Disposal Site ML22269A5642022-09-16016 September 2022 U.S. Department of Energy Office of Legacy Management Drilling and Investigative Activities at the Shiprock, New Mexico, Disposal Site Many Devils Wash Project Activities ML22269A5632022-09-16016 September 2022 U.S. Department of Energy Office of Legacy Management Drilling and Investigative Activities at the Shiprock, New Mexico, Disposal Site Many Devils Wash Project Activities ML22242A3162022-08-31031 August 2022 U.S. Nuclear Regulatory Commissions Review of the Draft Reevaluation of Ammonia, Manganese, Selenium, and Strontium as Contaminants of Concern for the Shiprock, New Mexico, Disposal Site ML22039A2742022-02-10010 February 2022 NRC Comment on DOE Draft Investigation of Mill and Non-Mill Related Groundwater in the Floodplain at the Shiprock, New Mexico, Disposal Site ML21319A2292021-11-18018 November 2021 Letter to P. Kerl, DOE Re NRC Comments on DOE April 2019 to March 2020 Shiprock Nm Performance Report ML20332A0212021-01-0606 January 2021 Letter from D. Orlando to M. Kautsky, DOE NRC Staff Review of Shiprock Performance Report Docket Number WM-58 ML20330A2622021-01-0505 January 2021 Letter from D. Orlando to M. Kautsky, DOE Deferral of Groundwater Monitoring at the Shiprock, Tuba City and Monument Valley Sites in 2020 (Docket Numbers WM-70, WM-58 and WM-73) ML20195B1082020-07-16016 July 2020 Letter to M. Kautsky, DOE NRC Staff Review of April 2017 Through March 2018 Performance Report for the Shiprock Nm Umtrca Site ML20190A0652020-07-15015 July 2020 Letter to M. Kautsky, DOE from D. Orlando Shiprock Gcap Workplan ML20091M0592020-04-30030 April 2020 Letter to Kautsky Re Shiprock Mdw Gcap Clarification ML20105A0402020-04-22022 April 2020 Letter to P. Kerl, DOE NRC Staff Review of 2019 Umtrca Title I Inspection Reports Docket Nos.: WM-00067, WM-00042, WM-00048, WM-00065,WM-00054, WM-00068, WM-00061, WM-00064 WM-00043, WM-00069, WM-00063, WM-00066 ML19233A2702019-09-0303 September 2019 Letter to Kautsky, DOE :Re NRC Staff Review of DOE Report Investigation on Non-Mill Related Water Inputs to the Terrace Alluvium at Shiprock, New Mexico ML19192A0412019-07-16016 July 2019 Letter to Kautsky, DOE NRC Staff Review of Batch Test Report for the Shiprock Umtrca Site ML19192A0512019-07-15015 July 2019 Letter to M Kautsky, DOE NRC Staff Review of Shiprock Well 0841 Abandonment ML19161A2322019-06-17017 June 2019 NRC Staff Review of Trip Report Completion of Standpipe Decommissioning at the Shiprock Umtrca Site ML19129A0722019-05-0909 May 2019 NRC Staff Review of 2018 Umtrca Title I Sites - Letter to P. Kerl, DOE ML19129A1372019-05-0909 May 2019 Letter to P. Kerl, Doe. NRC Staff Review of 2018 Shiprock Performance Report. Docket WM-00058 ML19074A0252019-03-21021 March 2019 Letter to M. Kautsky, DOE NRC Staff Review of Position Paper on Suspension of Gw Pumping at the Shiprock Umtrca Site ML18052A0412018-03-19019 March 2018 Letter to M. Kautsky, DOE NRC Staff Comments on DOE Performance Report for Shiprock, Az Site 2024-08-08
[Table view] |
Text
April 30, 2020 Mr. Mark Kautsky, Site Manager U.S. Department of Energy Office of Legacy Mgmt.
2597 Legacy Way Grand Junction, CO 81503
SUBJECT:
CLARIFICATION ON U.S. NUCLEAR REGULATORY COMMISSION STAFF LETTER REGARDING THE GROUNDWATER CORRECTIVE ACTION PLAN FOR THE SHIPROCK NEW MEXICO URANIUM MILL TAILINGS RADIATION CONTROL ACT SITE (Docket Number WM-58)
Dear Mr. Kautsky:
I am writing in response to your recent verbal request for clarification of U.S. Nuclear Regulatory Commission (NRC) staff statements in a letter concerning the Many Devils Wash area of the Shiprock Uranium Mill Tailings Radiation Control Act site in New Mexico.
By letter dated February 1, 2017, the U.S. Department of Energy (DOE) provided the NRC staff with a position paper entitled Origin of Contamination in Many Devils Wash, Shiprock, New Mexico dated January 2017 (Agencywide Documents Access and Management System [ADAMS] Accession No. ML17034A048). In March 2017 the NRC staff provided comments on the position paper (ADAMS Accession Number ML17080A335). In the comments, the NRC staff indicated that we understood that the DOE would be using the position paper as a rationale for revising the Groundwater Corrective Action Plan (GCAP) for the Shiprock site. NRC staffs understanding of the DOEs plans were based on discussions with DOE staff at the time. On July 31, 2019, the DOE informed the NRC that DOE intended to decommission the interceptor drain and associated remediation system infrastructure in Many Devils Wash in 2020 and that, based on the observational approach outlined in the GCAP, a revision to the GCAP was not necessary (ADAMS Accession Number ML19217A147). Since then, the DOE has verbally requested that the NRC staff provide clarification as to whether or not the NRC staff believes that the GCAP needs to be revised to reflect the decommissioning of the Many Devils Wash interceptor drain and associated remediation system infrastructure.
NRC staff reviewed the GCAP for the Shiprock site. Specifically, the discussion in Section 4.4 of the GCAP that states:
Operation of any particular extraction well may be discontinued at any time if it is determined that continued extraction of contaminated water in its vicinity is no longer practical. However, the extraction will not be terminated at any location as long as sources of exposure remain in that area. Thus, extraction from a particular well may be terminated earlier than 7 years, or it may continue after that period if it is necessary.
M. Kautsky 2 As described in the 2017 position paper, the NRC staff agrees that contamination in Many Devils Wash is from the natural interaction of water with the Mancos Shale and is not related to material at the mill site. In March 2017, NRC staff agreed that the upper part of Many Devils Wash was not affected by mill related activities (ADAMS Accession Number ML17080A335).
Because the contamination in Many Devils Wash is not related to mill activities, it is not practical for DOE to continue extraction. In addition, DOE has demonstrated that the groundwater in Many Devils Wash is not a source of exposure from mill related contaminants.
Therefore, the GCAP would not need to be revised to decommission the interceptor drain and associated remediation system infrastructure in Many Devils Wash.
In accordance with Title 10 of the Code of Federal Regulations Part 2.390 of the NRCs Agency Rules of Practice and Procedure, a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records component of NRCs ADAMS. ADAMS is accessible from the NRC Website at http://www.nrc.gov/reading-rm/adams.html.
If you have any questions please contact me at 301-415-6749 or by email at Dominick.Orlando@nrc.gov.
Sincerely, Dominick A. Digitally signed by Dominick A. Orlando Orlando Date: 2020.04.30 15:22:34
-04'00' Dominick A. Orlando, Senior Project Manager Uranium Recovery and Materials Decommissioning Branch Division of Decommissioning, Uranium Recovery and Waste Programs Office of Nuclear Material Safety and Safeguards Docket Number: WM-58 cc: Shiprocklistserve
ML20091M059 *via email OFFICE DUWP DUWP* OGC* DUWP NAME DOrlando Rvon Till AGendelman DOrlando DATE 4/2/2020 4/22/2020 4/30/2020 4/30/2020