ML20128B942
| ML20128B942 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 01/12/1993 |
| From: | Landis M OAK RIDGE ASSOCIATED UNIVERSITIES |
| To: | Fauver D NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| NUDOCS 9302030220 | |
| Download: ML20128B942 (2) | |
Text
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OR1SE t f ut A G-(/f P J /WA dMi t 41 fiYift M 5 (AV!5 tat 4 "k)
January 12, 1993 i
Mr. David Fauver Division of Imw-Level Waste Management and Decommissioning Nuclear Regulatory Commission One White Flint North c
1l$55 hekville Pike I
Rockville, MD 20852
SUBJECT:
SIIOREII AM DECOMMISSIONING PROJ ECT, TERMINATION SURVEY PLAN, REVISION. O, SIIOREIIAM NUCLEAR POWER STATION, OCTOBER 1992
Dear Mr. Fauver:
The Environmental Survey and Site Assessment Program (ESSAP) of the Oak Ridge Institute for Science and Education (ORISE) has reviewed the subject document and offers the comments ll for your consideration.
If there are any questions regarding these comments, please direct them to me at FTS 615-576- -
2908.
Since ly. Un h i he e R. Landis Project Manager.
Environmental Survey and Site Assessment Program J
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T. Mo,- NRC/NMSS, 6H3 D. Tiktinsky, NRC/NMSS, 6E6 J. Berger, ORISE j
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Ii3eneral Throughout this document, procedures are referred which are not provided nor referenced. This information should be included in one of these manners.' 'Overall, a very; thorough plan which generally meets the objectives provided in NUREGICR-5.849.
Page 2-3 It appears that a lot of unaffected area survey units are identified - could -
some be combined to reduce the number of measurements, camples, and.
calculations?
Page 3-1 Unable to evaluate this section without the characterization report. For~
example this section or the characterization report should include the justification for exclusion of fission products as contaminants, particularly Sr-90 as it has a more restrictive guideline.
Page 3-2 How will' measured Co-60 surface activity levels be adjusted to account -
for contrib'utions for Fe-557 Based on the difference in half-lives between Co-60 and Fe-55, this. ratio, = from 1990, should be reviewed for appropriateness for use at th'e time of measurement. What is the lover limit of detection for alpha emitters referred:to in this section?: Isit
- sufficiently sensitive for this application?'
4 Pages 3-8,9 What is the frequency for quality control samples and measurements? -
Pages 4-4,5 These efficiency factors seem low. In addition,.this MDA calculation is' l
not-the one given in NUREG 5849. The formula given is the one for uncertainty levels associated with a specific measurement, -MDA is.
apriori.
Page 5-2 Include a statement compare individual ~ measurements to the average _-
guideline level as well as the maximum.
Page 5-3 Provide the reference for the 5 pR/h and.10 pR/h comparison values stated for individual measurements.
Page 6-2 What units will be used for reporting results for sediment point andj j
concrete samples? What will be the action level for additional sampling 1
and analysis?
Page 6-3 Under the total beta-gamma column, how can a value for gross cpm '
correlate to two values for dpm/100 cm'? It is not clear how "gepm". are 2
converted to dpm/100 cm, pe: haps a sample calculation 'could be included. Why does the same value for " observed mrem /hr" correspond to different values for " net pR/ht"?
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