ML20245H193
| ML20245H193 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 06/14/1989 |
| From: | Whittier G Maine Yankee |
| To: | Russell W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| GDW-89-210, MN-89-81, NUDOCS 8906290421 | |
| Download: ML20245H193 (2) | |
Text
. _ - _ _..
.,7 MaineYankee F
RELIABLE ELECTRICITY FOR MAINE SINCL.}
' EDISON DRIVE. AUGUSTA, MAINE 04330. (207) 622 4868
. June.14, 1989 HN-89-81 GDH-89-210 Region I:
UNITED STATES NUCLEAR REGULATORY COMMISSION 475 Allendale Road King of Prussia, Pennsylvania 19406
. Attention: Mr. H1111am T. Russell, Regional Administrator
References:
(a) License No. DPP.-36 (Docket No. 50-309)
(b) Maine Yankee letter to USNRC dated February 23, 1989 (MN-89-21), Response to Notice of Violation
'(c) USNRC. letter to MYAPCo dated January 24, 1989 - Inspection Report No. 50-309/88-23
. Subj ect:
Response to Notice of. Violation - Inspection Report 50-309/88-23
~
Gentlemen:
In Reference (b), Maine Yankee responded to the Notice of Violation contained in Reference (c).
In Reference (b), we stated:
A review of all 1988 radioactive waste shipments was'made to check for other calculational errors and none were found.
The statement should be revised to read:
A review of all 1988 radioactive waste shipments was made to check for other calculational errors.
There were no errors made'that resulted in a violation of burial site criteria or' transportation regulations.
The attachment to this letter details the minor errors found in 6 of the 17 shipments that were checked.
This ammended response is being submitted to more accurately report the results of our review of the 1988 waste shipment records.
Should you have any questions on this matter, please contact me.
Very truly yours, 8906290421 890614 DR ADOCK 050 9
G. D. Whittier, anager l
Nuclear Engineering and Licensing c: Mr. Richard H. Nessman f,5#
Mr.-Patrick M. Sears Mr. Cornelius F. Holden I
I
.I
ATTACHMENT Shipment No'. 0488-215 On the " Haste Classification Worksheet" the Co-60 activity of 13.60 uCi/cc divided by 700 uCi/cc (Class A limit) was reported as 1.94E-4 rather than 1.94E-2.
The waste was still properly classified as Class B due to Ni-63, Sr-90 and Cs-137 specific activities exceeding the Class A limits. The total activity for Co-60 on the Radioactive Shipment Record (RSR) was properly reported.
Shipment No. 0488-216 Nuclide activities were originally calculated by "Radman". The hand calculation to verify results calculated 2.89Ci more than "Radman" but there were no differences in waste classification or transportation requirements. This sort of discrepancy between hand calculations and "Radman" is typical and expected.
Shipment No. 0888-226 s
Rounding of volume and mass values resulted in slightly different values
[
for the nuclides listed on the RSR.
For example, the Co-60 activity
. propagated thrcugh the calculations as 1.38 uCi/cc versus a rounded value of 1.4 uCi/cc. The activity difference in drum 5 due to this rounding was less than 4% and the total shipment activity difference was less than 1%.
There were no differences in waste classification or transportation requirements.
Shipment No. 0888-192 4
Ag-110m activity was not added to shipment total.
The activity of Ag l
-110m was less than 1% of the total activity.
By regulation and procedure, this amount of activity does not have to be included in the RSR.
There would have been no change in the waste classification or transportation requirements if it had been added.
Shipment No. 0888-276 The Cm-244 activity on the RSR was listed as 2.3 E-1 UCi when it was actually 2.3E-2 uCi.
This reduced the total activity of the shipment from 16,779.662 mci to 16,779.452 mci. This change was much less than 1% of the total activity.
It did not affect the waste classification or transportation requirements as they were based on the correct value of 2.3E-2 uCi.
l Shipment No. 0588-159 The curie value of drum WW-57 was originally calculated by improperly applying contact dose rate conversion factors to a three-foot dose rate reading.
Subsequently, the activity of the drum was recalculated using the proper conversion factors. After scaling the non-gamma nuclides, the i
total drum activity was determined to be 5 Ci versus the 1 Ci reported.
The waste class changed from A to B due to higher values of scaled nuclides but this had no effect on burial site criteria as the drum in question was packed in a HIC with a class C drum.
There was no change in transportation requirements as the waste still met LSA requirements.
01721-RCC
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