IR 05000315/1978039
| ML17326A707 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 06/27/1980 |
| From: | Essig T, Januska A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML17326A706 | List: |
| References | |
| 50-315-78-39, 50-316-78-40, NUDOCS 8008050555 | |
| Download: ML17326A707 (5) | |
Text
U.S.
NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Reports No. 50-315/78-39; 50-316/78-40 Docket Nos. 50-315; 50-316 Licenses No. DPR-58; DPR-74 Licensee:
American Electric Power Service Corporation Indiana and Michigan Power Company 2 Broadway New York, NY 10004 Facility'ame:
D.
C.
Cook Nuclear Plant, Units 1 and
Inspection At:
D.
C.
Cook Site, Bridgman, MI Inspection Conducted:
June 10, 1980 Inspector:
A. G.
uska g(
Approved By:
T. H. Essig, Chief Environmental and Special Projects Section C Z7 Bu Ins ection Summar Ins ection on June
1980 (Re orts No. 50-315/78-39 50-316/78-40)
Areas Ins ected:
Confirmatory Measurements including:
telephone discussion and closeout of results of a previous sample collection and submission of spiked samples.
The inspection involved 0 inspector-hours on site by one NRC inspector.
Results:
No items of noncompliance or deviations were identified.
8 0Q80 a 055
DETAILS 1.
Persons Contacted (Tele honicall )
E. Smarella, Technical Superintendent 2.
Results of Com arative Anal ses Results of comparative analyses performed on samples split onsite and a spiked sample submitted in October 1978 are shown in Table I.
The criteria for comparing measurement results are given in Attachment 1.
For six sample comparisons, the licensee's results yielded six agree-ments or partial agreements.
Attachments:
1.
Table I, Confirmatory Measurements Program, D.
C.
Cook 2.
Attachment 1, Criteria for Comparing Analytical Measurements-2-
'TABLE I U
S NUCLEAR RE GULATORY COHHI SS I ON Of FICE Or INSPECTION AN'0 ENF ORCEHENT CONF IRHATORY MEASUREMENTS PROGRAM, FAC ILI TY -
C COOK FOR THE
OUARTER OF 1978
"-----NRC-------
---LICENSEE-----
---NRC-LICFNSEE----
SAMPLE ISOTOPE RESULT ERROP RESULT ERROR RATIO RES T
OFF GAS XE 133 1 ~ 3E-03 SoOE-05 1 e9E-03 0 ~ 0 KR 85 9 ~ OE-04 1oOE-04 1 ~ 3E-03 3 ~ 5E-05 1 ~ 5E+00 1.4E+00 2 ~ 6E +01 P
9.OF+00 A
F SP IKEO CO
2 'E-D3 8 ~ 5E-03 6 ~ 5E-03 7 ~ 4E
Or
3oOE-04 3 ~ OE-04 3'F
3 ~ 2E -03 8 ~ 4E -0 5 8 ~ LE-03 2 ~ 2E-04 7 ~ 4E -03 2 ~ 4E-04 8 ~ 2E -03 2 o8E -94 1 ~ 2E+00 9o9E-01 1 ~ 1E+00 1 ~ 1E tDO 3 ~ OE +01 A
2 ~ 8F +01 A
2 ~ 2E+01 A
2 o 5k+01 A
T TEST RESULTS:
A=AGRE EHE NT AGREE Hr NT SIBLE AGREEMENT N=
COHPAR I SON
ATTACHMENT 1 CRITERIA FOR COMPARING ANALYTICALMEASUREMENTS This attachment provides criteria forcomparing results of capability tests and verification measurements.
The criteria are based on an empirical relationship which combines prior experience and the accuracy needs of this program.
In these criteria, the )udgment limits are variable in relation to the comparison of the NRC Reference Laboratory's value to its associated one sigma uncertainty.
As that ratio, referred to in this program as
"Resolution", increases, the acceptability of a licensee's measurement should be more selective.
Conversely,.poorer agreement should be con-sidered acceptable as the resolution decreases.
The values in the ratio criteria may be rounded to fewer significant figures to maintain statistical consistency with the number of significant figures reported by the NRC Reference Laboratory, unless such rounding will result in a narrowed category of acceptance.
The acceptance category reported will be the narrowest into which the ratio fits for the.resolution being used.
RESOLUTION RATIO = LICENSEE VALUE/NRC REFERENCE VALUE
~Ateement Possible
~Ateement
"A" Possible A reeable
"B"
<3
>3 and
<4
>4 and
<8
>8 and
<16
>16 and
<51
>51 and <200
>200 No Comparison.5 0.5>>
2.0 0. 6
1. 67 0. 75 1. 33 0. 80 1, 25 0. 85 1. 18 No Comparison 0 3
3 0 0 4
-
2 5 0 5
2 0 0. 6
1. 67 0. 75
1. 33 0. 80
1. 25 No Comparison No Comparison.0 0 4
5.0 0. 6
1. 67 0. 75
1. 33
"A" criteria are applied to the following analyses:
Gamma spectrometry, where principal gamma energy used for identifi-cation is greater than 250 keV.
Tritium analyses of liquid samples.
"B" criteria are applied to the following analyses:
Gamma spectrometry, where principal gamma energy used. for identifi-cation is less than 250 keV.
Sr-89 and Sr-90 determinations.
Gross beta, where samples are counted on the same date using the same reference nuclide.