ML20196G569
| ML20196G569 | |
| Person / Time | |
|---|---|
| Issue date: | 08/04/1988 |
| From: | Heyer R, Pettengill H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| REF-WM-39, TASK-TF, TASK-URFO NUDOCS 9707020032 | |
| Download: ML20196G569 (5) | |
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AUG 4 1983 URF0: RSH Docket No. 40-WM039 040WM039180E MEMORANDUM FOR:
Docket File No. 40-WM039 FROM:
Ralph S. Heyer, Project Manager Licensing Branch 2 Uranium Recovery Field Office, Region IV T3
SUBJECT:
REVIEW 0F JUSTIFICATION FOR APPLICATION OF
\\s' SUPPLEMENTAL STANDARDS AT VICINITY PROPERTY GJ-97004-0T
Background
By submittals dated June 27, and July 5, 1988, the Department of Energy (D0E) supplied the final Radiological and Engineering Assessment (REA) which requested the application of supplemental standards on the contaminated area for vicinity property GJ-97004-0T.
This property is a portion of the Downtown Shopping Park, located on Main Street, between Fifth and Sixth Streets, including the side streets from Main Street north and south to the alleys.
The design for the remedial action of
,3 GJ-97004-0T pertains only to the sidewalk portions of a total of 32 properties j
t) along the 500 Block of Main Street.
The DOE assessment presented three remedial action options with health risk assessments, volume estimates of materials that would be removed, cost estimates to perform remedial action, and the recommended action.
Discussion The three remedial action options considered for the Downtown Shopping Park are:
no action, partial removal and complete removal.
The uranium mill tailings contamination exists beneath approximately 20,500 square feet of sidewalks and landscape planters to the assessed depth of 16 inches (measures from the top of the sidewalk) in the 500 Block of Main Street.
The DOE requested to pursue the option of partial removal.
The design drawings show that.the first 10 feet of sidewalk (from the building toward the sewer line) along 502 and 504 Main Street are not contaminated and the radon daughter
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AUG 4 198g i
concentrations are below EPA standards.
The highest outside gamma reading is 55 pR/hr.
The maximum radium concentration in the contaminated area is 35.2 pCi/gm.
The total estimated cost for partial removal, including work on both sides of Main Street and along the side streets is estimated at $64,967.
The estimated
-volume of materials to be removed under this option is 511 cubic yards.
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-Without the application of supplemental standards the total cost is estimated at $190,100.
Conclusion Therefore, based on my review of the subject REA, associated correspondence and in accordance with Criterion "b" and "c" of 40 CFR 192.21 and the NRC's
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" Guidelines for Justifying the Use of Supplemental Standards," in 40 CFR Part 192, dated July 3, 1986, DOE satisfied the criteria deemed necessary to apply supplemental standards.
I recommend that concurrence be granted for the application of supplemental standards for partial removal of contaminated soils for the properties designated at GJ-97004-0T.
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Ralph S. Heyer, Project Manager Licensing Branch 2 Uranium Recovery Field Office Region IV Approved by:
Harry J. Pettengill, Chief Licensing Branch 2 Uranium Recovery Field Office O
Re95en Iv Case Closed:
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Docket File No. 40-WM39 PDR/DCS DBangart, RIV RHeyer AHazle, RCPD, C0 LLO Branch, LLWM URF0 r/f i
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CONCURRENCE:
DATE:
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REGION IV URANIUM RECOV FIELD OFFICE DENVER, COLORADO 80225 AUG 4 gggg URF0:RSH Docket No. 40-WM039 040WM039180E MEMORANDUM FOR:
Docket File No. 40-WM039 FROM:
Ralph S. Heyer, Project Manager Licensing Branch 2 Uranium Recovery Field Office, Region IV O'
SUBJECT:
REVIEW 0F JUSTIFICATION FOR APPLICATION OF SUPPLEMENTAL STANDARDS AT VICINITY PROPERTY GJ-97004-0T
Background
By submittals dated June 27, and July 5, 1988, the Department of Energy (00E) supplied the final Radiological and Engineering Assessment (REA) which requested the application of supplemental standards on the contaminated area for vicinity property GJ-97004-0T.
This property is a portion of the Downtown Shopping Park, locnted on Main Street, between Fifth and Sixth Streets, including the ;;de streets from Main Street north and south to the alleys.
The design for the remedial action of GJ-97004-0T pertains only to the sidewalk portions of a total of 32 properties O
along the 500 Block of Main Street.
The DOE assessment presented three remedial action options with health risk assessments, volume estimates of materials that would be removed, cost estimates to perform remedial action, and the recommended action.
Discussion The three remedial action options considered for the Downtown Shopping Park are:
no action, partial removal and complete removal.
The uranium mill tailings contamination exists beneatn approximately 20,500 square feet of sidewalks and landscape planters to the assessed depth of 16 inches (measures from the top of the sidewalk) in the 500 Block of Main Street.
The DOE requested to pursue the option of partial removal.
The design drawings show that the first 10 feet of sidewalk (from the building toward the sewer line) aly 502 and 504 Main Street are not contaminated and the radon daughter i
OFFICIAL DOCKET COPY
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AUG d 1988
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concentrations are below EPA standards.
The highest outside gamma reading is l
l 55 pR/hr.
The maximum radium concentration in the contaminated area is
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35.2 pCi/gm.
The total estimated cost for partial removal, including work on both sides of Main Street and along the side streets is estimated at $64,967.
The estimated volume of materials to be removed under this option is 511 cubic yards.
Without the application of supplemental standards the total cost is estimated at $190,100.
Conclusion 4
Therefore, based on my review of the subject REA, associated correspondence and
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in accordance with Criterion "b" and "c" of 40 CFR 192.21 and the NRC's
" Guidelines for Justifying the Use of Supplemental Standards," in 40 CFR i
O Part 192, dated July 3, 1986, DOE satisfied the criteria deemed necessary to l
apply supplemental standards.
I recommend that concurrence be granted for the application of supplemental standards for partial removal of contaminated soils i
for the properties designated at GJ-97004-0T.
y Ralph. Heyer, Project Manager Licensing Branch 2
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Uranium Recovery Field Office j
Re i IV l
Approved by:
N Harry'J. PettengM 1, Chief l-Licensing Branch 2 Uranium Recovery Field Office O
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4210 East 11th Avenue k.$$J, l
Denver, Colorado 80220 Phone (30J) 320-8333
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July 17, 1989
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Govemor I
homM M. Vernon, M O s
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Mr. Joseph E. Virgona i
Project Engineer l
U.S. Department of Energy l
P.O. Box 2567 l
Grand Junction, Colorado 81502-2567 Re: Colorado Response to Supplemental Standards l
Application CJ-97009-0T, GRJ-X
Dear Joe:
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We have reviewed the Application for Supplemental Standards (SS) noted above and find it to conform with the requirements of 40 CFR 192 with exception to the items noted below:
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1.
Control Plan. The recommendation in Section 3.0 recognizes the
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potential for future migration of tailings from the North Avenue area as a result of street or waterline maintenance. It suggests development and implementation of a long-term tailings management, i
disposal and migration plan addressing undiscovered deposits, deposits left in place through the application of SS and deposits.not within existing inclusion boundaries. We find that this plan is an l
integral component of the application of SS to ensure that the definition of " control" is met; i.e. that tailings are placed in a condition that will minimize the risk to man over a long period of time. In addition, we find that development of such a plan would address concerns raised by the property owner, the Colorado l
Department of Highways and the utility owner, and the City of Grand l
Junction.
2.
Risk Assessment. The risk assessment does not consider radiation exposure to a worker who is completing utility repairs in the future. This exposure would be higher than that experienced on the surface in cases where waterline breakage required trench czcavation. Given the significant quanties of tailings lef t in l
utility corridors throughout Hesa County this potential risk of erposure to workers shoulf be assessed.
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