ML20199H959
| ML20199H959 | |
| Person / Time | |
|---|---|
| Issue date: | 01/27/1998 |
| From: | Joseph Holonich NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Rael G ENERGY, DEPT. OF |
| References | |
| REF-WM-86 NUDOCS 9802050160 | |
| Download: ML20199H959 (2) | |
Text
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January 27, 1998 Mr. Gborgi Rael, Director ERD /UMTRA
- U.S. Department of Energy Albuquerque Operations Office P,0. Box 5400 Albuquerque, NM 87185-5400
SUBJECT:
LONG TERM SURVEILLANCE PLAN FOR THE SLICK ROCK, COLORADO URANIUM MILL TAILINGS REMEDIAL ACTION SITE
Dear Mr. Rael:
The U.S. Nuclear Regulatory Commission staff has reviewed the U.S. Department of Energy's (DOE'S) Long-Term Surveillance Plan (LTSP, dated August 1997) for the Burro Canyon Disposal cell at Slick Rock, Colorado, transmitted by DOE letter dated August 14,1997. The NRC staff has concluded that the LTSP adequately covers the area of erosion protection; however, the staff has identified two issues related to geotechnical engineering und one issue related to groundwater resources protection (Enclosure). These issues need to be addressed and resolved prior to the staff's acceptance of the LTSP.
If you have any questions regarding this review, please contact the NRC Project Manager, Charlotte Abrams, at (301) 415-5808.
Sincerely, Original Signed By Joseph J. Holonich, Chief Uranium Recovery Branch Division of Waste Management j
q L j t{,f I Office of Nuclear Material Safety and Safeguards
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REVIEW OF LONG TERM SURVEILLANCE PLAN FOR THE BURRO CANYON DISPOSAL SITE, SLICK ROCK, COLORADO The U.S. Nucl ear Regulatory Commission staff reviewed the U.S. Department of Energy's Long-Term Surveillance Plan (LTSP) for compliance with 10 CFR rart 40 (40.27(b) and Appendix A, Cnterion 12). The staff concludes that the following information needs to be included in the LTSP:
1.
As stated in DOE's transmittalletter of August 14,1997, Plate 1 of the LTSP, showing information such as the site, fence line, entrance gate, location of markers and monitoring wells, was not included with the August 1997 LTSP This information is part of the necessary LTSP documentation and must be included prior to NRC approval of the final LTSP.
2.
Section 6.1 of the LTSP lists the documents that will be maintained at DOE's offices.
The list does not include the Stick Rock site Completion Report (CR), which provides the base-line documentation of the final condition of the disposal site. The CR is the document that future inspectors will use to determine changes to the site and wnen those changes are serious enough to require maintenance or repairs. A description of the final disposal site conditions is also required by 10 CFR 40.27(b)(2),
3.
The LTSP adequately discusses the groundwater monitoring program, action levels, and contingencies for measurements in four standpipes within the disposal cell. There is
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also a commitment in the LTSP to visually inspect Dakota sandstone outcrops near the disposal cell for evidence of seepage. According to the logic flowchart and text in the LTSP, DOE would abandon the standpipes after a downward trend in water levels is consistently observed over three consecutive quarters. Given that the standpipes are the only monitoring proposed for the purpose of meeting U.S. Environmental Protection Agency requirements, and this monitoring is occurring under the general license, the LTSP (Page 2-13, last paragraph, and Figure 2.6, Page 2-14) should contain a statement that DOE would seek NRC approval prior to decommissioning the standpipes.
i Enclosure
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