ML20247H288
| ML20247H288 | |
| Person / Time | |
|---|---|
| Issue date: | 08/26/1986 |
| From: | Pettengill H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Hazle A COLORADO, STATE OF |
| Shared Package | |
| ML20197H170 | List: |
| References | |
| FOIA-89-242 NUDOCS 8907280341 | |
| Download: ML20247H288 (2) | |
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L5tF0 s/f No. W193 OBangart. RIV CJierree Wettang111 WM1931105-LLW Branch, E U'-
- 'aggagy3 AUGt8lS8g KIO:CCJ 040W193110S Albeirt J. Hazle. Director Radiation Control Division Colorado Department of E 'A 4210 East lith Avenue i
Denver, Colorado 80f?'J Gentlemen:
Per your request by le :ter dated July 25, 19864 the staff of the Uranium Recovery Field Office ias reviewed the remedial action sections of the Uravan Remedial Action Plan provided to your office from Union Ca dide Corporation. In ge r.l the staff finds that the plans are adequate provided Union Car W t.an meet the standards referenced in their plan.
A few general comuments art provided below:
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- 1.
Use of de Burbank Quarry for disposal of contaminated natural materials should meet the 40 CFR 192 requirements for a new impoundment.
Therefore. +he proposed one foot'of compacted clay may not be sufficient to meet this standard.
4 2.
Table 4.1.201 is refwened extensively in the remedial action plan.
It should be noted that verification of on site and off site cleanup actions should not be based solely on a gamma exposure rate survey, but should be confirmed with appropriate soil sampling for reside:1 i
radium-226 as a minimum, j
3.
The many references to in-plact e'vaporation of solutions may not achieve the estimated overall evaporation rate of 2 gym since many l
factors determine actual rates from year to year.
Use of enhanced j
evaporation systems should be considered if schedule adherence l
1s a priority.
8907200341 090719 PDR FDIA BOLDTIN89-242 PDR C:
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I iM193110S 2-AUG 261986 4.
References to irrigation of soil for removal of radionuclides contamination is not a method of choice unless preclusion of leaching l
into the ground water can be assured.
5.
The proposed cover for the disposal area should assure conformance with the radon emanation limitatien specified in 40 CFR 192.
6.
'ficinity property cleanup shoufd address an appropriate survey in order to assure that contaarination is identified and not overlooked.
Sampling grids should be established and followed throughout the cleanup effort.
I 7.
Contamination limits should be established and followed to assure
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that salvageable equipment will not pose a hazard when released for unrestricted use.
Any questions concerning these connents can be addressed to me at the address listed on the letterhead above.
2 Sincerely, 8
\\
I Harry J. Pettengill, Chief I
Licensing Branch 2 I
Uranium Recovery Field Office bgion IV case closed: 040WM193110S 1
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