ML20236K680

Informs That NRC Reviewed Date Provided by DOE & Concurs, Partial Remediation,As Performed Appropriate.Staff Also Reviewed Revised Page C-12 to Original Rea Sent by DOEs follow-up

ML20236K680
Person / Time
Issue date:	07/02/1998
From:	Joseph Holonich NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	Tucker M ENERGY, DEPT. OF
References
REF-WM-54 NUDOCS 9807100041
Download: ML20236K680 (3)

Text

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July 2,1998 Mr. Michael Tucker, Project Manager U.S. Department of Energy Grand Junction Office 2597 B 3/4 Road Grand Junction, CO 81503

SUBJECT:

REVIEW OF REVISION TO SUPPLEMENTAL STANDARDS APPLICATION FOR OUlKRETE CONCRETE PLANT, VICINITY PROPERTY GJ-05107-CS

Dear Mr. Tucker:

By letter dated February 11,1997, the Department of Energy (DOE) requested Nuclear Regulatory Commission (NRC) approval of the Radiologic and Engineering Assessment (REA) for vicinity property GJ-05107-CS at 24621/2, Highway 6 and 50 in Grand Junction, Colorado.

The REA proposed utilization of supplemental standards for residual radioactive material (RRM) commingled with Resource Conservation and Recovery Act (RCRA) listed hazardous wastes.

DOE indicated that a disposal site does not exist that will accept RCRA-listed wasts commingled with RRM, and that treatment of material to removed the hazardous waste is not always successful. In addition, DOE does not have authority to manage the waste under the Uranium Mill Tailings Radiation Control Act. The area where the RRM was proposed to be left in place is an unpaved access road into the plant site. After review of the REA, the NRC staff concurred, by letter of April 11,1997, with DOE'S recommended Alternative 2, removal of the top 3 feet of RRM and application of supplemental standards (no remediation) for the remainder of the deposit, because the cost of managing the commingled waste is excessive in comparison

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By letter of April 22,1998, DOE informed NRC that, in the process of remediation of the subject site, chemical odors and discolored soil were encountered at a depth of about 2 feet. Soil analysis indicated the presence of RCRA-listed waste and the excavation was backfilled without removal of the planned volume _ DOE considers that gamma radiation levels have been ld reduced to acceptable levels, that the approved supplemental standards application has be*n g[j ]

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met, and the desired level of protectiveness has been achieved. DOE requested that NRC concur with implementation of the partial remediation, i

The NRC staff has reviewed the data provided by DOE and concurs that partial remediation, as performed, is appropriate. The staff also review ed the revised page C-12 to the original REA I

sent by DOE's follow-up letter of May 27,1998. The added footnote revision to Section C.S.2.4 of the original supplemental standards application indicates that the additional matedal to be left in place is addressed under the approved application of supplemental standards. The NRC 9807100041 900702

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. k M. Tucker sta'ff considers the revision to the original REA to be an acceptable method for documenting the decision to apply supplemental standards and the basis for leaving the additional small volume of materialin place.

I If you have any questions concerning this subject, please contact the NRC Project Manager,

- Ms. Charlotte Abrams, at (301) 415-5808.

Sincerely, L

[C. Abrams for]

l Joseph J. Holonich, Chief l^

Uranium Recovery Branch Division of Waste Management Office of Nuclear Material Safety and Safeguards cc:

R. Edge, DOE GRJ E. Artiglia, TAC Alb

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a M. Tucker stdconsiders the revision to the original REA to be an acceptable method for documenting tne decision to apply supplemental standards and the basis for leaving the additional small volume of materialin place.

If you have any questions concerning this subject, please contact the NRC Project Manager, Ms. Charlotte Abrams, at (301) 415-5808.

Sincerely, MA*We Joseph J. Holonich, Chief Uranium Recovery Branch Division of Waste Management Office of Nuclear Material Safety and Safeguards cc:

R. Edge, DOE GRJ E. Artiglia TAC Alb i

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