ML20215M412
| ML20215M412 | |
| Person / Time | |
|---|---|
| Issue date: | 05/05/1987 |
| From: | Brich R, Pettengill H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| REF-WM-48 NUDOCS 8705130224 | |
| Download: ML20215M412 (2) | |
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DISTRIBUTION Docket File WM-048 PDR/DCS DBangart, RIV WM-048/RFB/87/04/08/1 RBrich AHazle, RCPD, C0 LLW Branch, WMLU g g 0 5 1987 URF0 r/f URFO:RFB Docket No. WM-048 040WM048870E
. Lear
.y MEMORANDUM FOR:
Docket File No. 40-WM048
'87 t;M 11 n9 :36 FROM:
Randall F. Brich, Project Manager Licensing Branch 2 Uranium Recovery Field Office, RegiontIVh m
SUBJECT:
REVIEW OF REQUEST FOR SUPPLEMENTAL STANDARDS FOR VICINITY PROPERTY DU-095 By letter dated March 10, 1987, the Department of Energy (DOE) requested application of supplemental standards to a portion of the commercial vicinity property identified as00-095 located in Durango, Colorado.
Briefly, residual radioactive material (RRM) has been identified at several locations within this property. One of these contaminated. areas 3
houses an oil and gas storage facility which both DOE and the owner desire to leave as is.
Discussion e
Eight areas in the property contain RRM in excess of the EPA standards to a depth of approximately 30 inches. All of the areas will be cleaned to the standards except for a small portion of area "H."
This area occupies approximately 75 square yards and is contaminated to a depth of about 30 inches, with an estimated volume of 625 cubic yards.
Gamma ray exposure rates range from 22 to 133 microR/h, with an average of about 50 microR/h.
Radium-226 concentrations range from 6 to 70 pCi/g.
Radon daughter measurements conducted in the uninhabited pumphouse shed were all less than the EPA standard.
The area is covered by a ::oncrete slab, upon which rest 10 oil and gas storage tanks.
There is no historical drawing which would depict the locations of the associated underground piping. Worker occupancy of the area is transient and would never exceed 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> a week.
8705130224 8705o5 OFC PDR WASTE
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DATE :87/05/04
WM-048/RFB/87/04/08/1 MAY 0 51987 l DOE states that utilization of supplemental standards will result in cost savings of approximately $139,300, which is clearly excessive relative to the potential benefits since the property is zoned commercial and there is no forseeable future land use change. Thus, DOE states that the vicinity property qualifies for application of supplemental standards to the specified area in accordance with Criteria A and C of 40 CFR 192.21, in which the risk of injury to workers and the public is.significant and the cost of remedial action is high, relative to potential long-term benefits.
Conclusion Based on my review of the subject REA, I conclude that utilization of supplemental standards is justified for the following reasons:
the potential risk of injury to workers is significant, the cost far outweighs the benefits associated with removal of the 625 cubic yards of RRM, and there is no forseeable land use change.
In addition, the land records will be annotated to indicate the presence of the RRM on the property and the owners are in agreement with the proposed action.
Accordingly, I conclude that the potential for long-term harm has been minimized to the extent practicable.
Therefore, I recommend that DOE be notified that we concur on the proposed remedial action for vicinity property DU-095.
/s/
Randall F. Brich, Project Manager Licensing Branch 2 Uranium Recovery Field Office Region IV Approved by:
Harry J. Pettingill, Chief Licensing Branch 2 Uranium Recovery Field Office, Region IV Case Closed:
040WM048870E OFC : URF0
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DATE$87/05/04
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