ML20198N068
| ML20198N068 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 10/21/1997 |
| From: | Sharkey R ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY, ASEA BROWN BOVERI, INC. |
| To: | Weber M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML20198N074 | List: |
| References | |
| IEIN-96-047, IEIN-96-47, TAC-L30912, NUDOCS 9710310213 | |
| Download: ML20198N068 (7) | |
Text
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. r0 Docket No. 70-36 License No. SNM-33 Mr. Michael Weber, Chief Licensing Branch Division of Fuel Cycle Safety and Safeguards, NMSS U.S. Nuclear Regulatory Commission Washington, DC 20555 0001 i
Subject:
Proposed Plan for 10 CFR 20.304 Burials (TAC NO. L30912)
Enclosure (1) Regional and Local Geologic Summary at the Combustion Engineering, Hematite, Missouri, Plant Enclosure (2) Proposed Hydrogeologic Investigation and Groundwater / Surface Water Monitoring Work Plan for the Combustion Engineering, Hematite, Missouri Site i
Enclosure (3) Proposed Wo k Plan Schedule i
Enclosure (4) Letter from Gateway Authorizing Reproduction of Reports
Dear Mr. Weber:
1 i
On September 13,1996 CE responded to NRC Information Notice 96-47 and requested I
postponement of decommissioning of the 10 CFR 20.304 burials located to the east of l
the current production buildings until the end of plant life (Ref.1). On November 25, L
1996 the NRC denied CE's request for postponement based on inadequate justification (Ref. 2). On January 24,1997 CE requested additional time to assess relevant factors to decommission the burial area and requested a meeting with the NRC (Ref 3). On April 24,1997 CE met with representmives of the NRC to discuss options and potential actions with regard to the burial area. CE requested that the NRC participate in a meeting at MDNR and on September 16 transmitted a letter requesting their participation i
(Ref. 4). On September 26,1997 CE met with MDNR and NRC in Jefferson City, MO to discuss a work plan to better understand the hydrogeology of the burial area. On September 29,1997 CE had a telephone conference with NRC Headquarters and Region ill to discuss future plans for the burial area and committed to submit the work i
l plan (presented at the CE, MDNR and NRC meeting) to the NRC by October 24.
Prior to undertaking any actions relating to the burial area, CE recognized that the first L
step would be to obtain and derive an understanding of existing data. Therefore, CE f
commissioned a hydrogeologic consulting firm to study existing geologic information
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(Ref. 5, Enclosure 1) which addresses many of the concerns raised during CE's self ABB CENO Fuel Operations D er, s e E v eev a in:
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' assessment, NRC's timeliness rule and MDNR's sampling. 4 One of the results of thel A geologic review is an indication of the potential for an Artesian ground water source ~.
- underlying the site. The presence of an Artesian ground water condition would limit the potential pathways for radiological contaminants to future receptors because
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contaminants would not have a pathway to a potential ground water source. Therefore, l
CE proposes to conduct a more detailed hydrological study to better understand the local conditions, an outline of the propowd study was presented at the meeting on September 26 (Ref 6, Enclosure 2). The information developed during the hydrogeologic study will then be used to model potential doses to future residents under varying scenarios. CE believes that results of these dose models are likely to suppon the release of the area by -
. demonstrating that dose to future residents will be less than 25 mrom per year.
CE proposes the following schedule. Since there are two regulatory agencies irivolved, CE request NRC's initial review of the hydrogeologic work plan by January 23 1998.
- Following revision and approval CE willimplement the plan. One and one third years following the approval of the work plan by MDNR and NRC, CE will submit a i
- hydrogaological repon. A detailed scheduie for completing the work plan is provided as
- Enclosure 3. Pending the results of the hydrogeological study _CE will either;
- 1) Within one year following the submission of the_hydrogeclogic report, CE will
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submit to the NRC a report which demonstrates that the dose to future residents is less than 25 mrem.
- 2) Within six months of the hydrogeologic report, CE will begin the process for a restricted release of the area.
or
- 3) Within one year of the hydrogeologic report,CE will submit a remediation plan to reduce residual levels to allow for a future resident dose of less than 25 mrem / year.
Because of the complexity of characterization task and the involvement of two regulatory agencies, CE proposes an alternative schedule to that prescribed in the Timeliness Rule.
. In addition, the level of uranium in the burial area requires the use of site specific d
modeling to support the proposed release.
The burials, performed in accordance with 10 CFR 20.304, were conducted by previous licensee's prior to CE purchase of the Hematite site in 1974. Review of burial records and interviews with personnel present when materials were buried indicate that uranium
- contaminated materials were placed in trenches and backfilled. The burial area currentif has monitoring wells surrounding it which are sampled and tested monthly. The flow of ground water intersects WS-15 and WS-16 to the east (Ref. 5). Results of these monitoring wens have not demonstrated significant levels of uranium (Ref. 7). Without a ground water path, there does not appear to be a credible scenario which would place
' the public at risk. This conclusion was also reached in NUREG/CR-3387 (Ref. 8) which stated:
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' t The overall conclusions [of the NRC study) are that relatively smail quantities of uranium i
have been buried and that the buried materialis essentially stable at this time. The bunal pits have little or no effect on the population or the surrounding environment.
. If there are questions regarding this matter, please feel free to contact Dr. Earl Saito of L my staff at (314) 937-4691 Ext. 461 or myself at (314) 937-4691 Ext. 399.
Sincerely, L
COMBUSTION ENGINEERIN,INC
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M-2l-9 7 obert W. Sharkey Date Director, Regulatory Affairs RA97M36 1
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O References
- 1) Letter from R.W. Sharkey, CE, to Director, Office of Nuclear Material Safety and Safeguards, dated September 13,1996.
Subject:
- 2) Letter from M. F. Weber, NRC, to R. W. Sharkey, dated November 25,1996.
Subject:
Postponement of 20.304 INsposal Area Decommissioning.
- 3) Letter from R. W, Sharkey, CE, to M. F. Weber, NRC, dated January 24,1997.
Subject:
Additional Assessment of 10 CFR 20.304 Burials.
- 4) Letter from R. W. Sharkey, CE, to M. F. Weber, NRC, d.ted September 12,1997.
Subject:
Proposed Actions for 10 CFR 20.304 Burials
- 5) llegional and Local Geologic Summary at the Combustion Enoineering. Hematite.
Missouri. Plant. May 30,1997, Gateway Environmental Associates, Inc.
- 6) Procosed Hydrogeologie Investigation and Groundwater / Surface Water Monitoring Work Plan for the Combustion Engineering. Hematile. Missouri Site. October 1997, Combustion Engineering, Inc.
- 7) NRC License Renewal Application Part ll Safety Demonstration.
- 8) Booth, L. F., et. al., NUREG/CR-3387 Radiological Survev of the Combustion Engineerino Burial Site. Hemat!!e. Missouti,1983, Radiation Management Corporation for the NRC.
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f GMEWAY ENvino: NANTA 1. Associates,INO.-
i October 15,1997 Mr. Robert W. Sharkey Regulatory Compliance Manager ABB Combustion Engineering,Inc.
3300 State Road P Hematite, Missouri 63047
Dear Mr. Sharkey:
This letter authorizes ABB Combustion Engineering and the Nuclear Regulatory Commission to use and copy documents which Gateway Environmental Associates,Inc.
have produced for ABB Combustion Engineering.
11 you have any questions concerning this letter, please call me at (314) 205-8053.
Sincerely, Gateway Environmental Associates,Inc.
3yW John L. Bognar, R.G., C.P.G.
President Senior flydrogeologist imblJLB PERCOPY.WFD 2083 Craigshire Drive
- St. Louis.MO 63146 a 314 205 8053 Fax:314 434 7071
- -