IR 05000220/1979010
| ML17053A876 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 06/06/1979 |
| From: | Kottan J, Stohr J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML17053A875 | List: |
| References | |
| 50-220-79-10, NUDOCS 7908010722 | |
| Download: ML17053A876 (8) | |
Text
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U.S.
NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT Region I Report No.
50-220/79-10 Docket No.
50-220 License No. DPR-63 Priority Licensee:
Niagara Mohawk Power Corporation 300 Erie Boulevard West Syracuse, New York 13202 Faci 1 ity Name Nine Mile Point Nucl ear Station Inspection at:
Lycoming, New York Inspection conducted:
March 15, 1979 Category C
Inspectors:
J. J.
K ttan, Radiation Specialist date igned date signed Approved by:
J P. Stohr, Chief, Environmental and Special Projects Section, FF8MS Branch date signed da si ned Ins ection Summar Ins ection on March 15, 1979 Re ort No. 50-220 79-10)
Areas Ins ecte
T is report contains the results of an effluent sample sp it etween t e licensee and NRC: I during a previous inspection on September 25-27, 1978.
The comparison of these results involved no on-site time.
Results:
Within the area inspected, no items of noncompliance were observed.
I Region I Form 12 (Rev. April 77)
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DETAILS 1.
Persons Contacted J. Duell, Assistant Chemistry and Radiation Protection Supervisor 2.
Confirmator Measurements In a previous inspection conducted on September 25-27, 1978 Inspec-tion Report 50-220/78-14, a liquid effluent sample was split with the licensee and NRC:I.
Analyses were performed by the licensee using his normal methods and procedures, and the NRC:I analyses were performed by the Department of Energy's Radiological and En-vironmental Services Laboratory (RESL).
The comparison of the analyses results indicated that all of the measurements were in agreement, possible agreement or not comparable under the criteria used for comparing results (See Attachment 1).
The results of the comparisons are presented in Table 1.
No items of noncompliance were identified.
3.
Exit Interview The inspector discussed the results of this inspection in a tele-phone conversation on March 15, 1979 with the licensee representa-tive denoted in Paragraph II
TABLE 1 I
NINE MILE POINT UNIT 1 VERIFICATION TEST RESULTS SAMPLE ISOTOPE NRC VALUE LICENSEE VALUE COMPARISON FDST 1125 hrs 9/26/78 Sr-89 Sr-90 Gross Beta H-3 (3.1+0.2)
E-6 (1.52+0.07)
E-6 (2.7~0.1)
E-4 (8.1740.02)
E-3
- Gross Alpha (1+2) E-9 (3.2340.32)
E-6 (1.49+0.15)
E-6 (1.9200.19)
E-4 (9.,32%0.93)
E-3
< 6.12 E-8 Agreement Agreement Possible Agreement Agreement No Comparison
- The licensee's Technical Specificatioqs require a gross alpha minimum detectable concentration of
E-7 uCi/m SIAA Attachment
Criteria for Com grin Anal tical Measurements
~
A This attachment provides criteria for comparing 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 judgement limits are variable in relation to the comparison of the NRC Reference Laboratory's value to its associated uncertainty.
As that ratio, referred to in this program as "Resolution",
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increases the acceptability of a licensee's measurement should be more selective.
Conversely, poorer agreement must be considered acceptable as the resolution decreases.
LICENSEE VALUE RATIO= NRC REFERENCE VALUE Resolution Possible Possible
~Areement
~tt A A~At c34-7 8-15 16-50 51 - 200
>200 0.4 0.5 0.6 0.75 0.80 0.85
- 2.5
- 2.0
- 1.66
~ 33
- 1.25
- 1.18 0.3 - 3.0 0.4 - 2.5.0 0.6 - 1.66 0.75 - 1.33 0.80 - 1.25 No Comparison 0.3 - 3.0 0.4 - 2.5 0.5 - 2.0 0.6 - 1;66 0.75 - 1.33
"A" criteria are applied to the following analyses:
Gamma Spectrometry where principal gamma energy used for identification is greater than 250 Kev.
Tritium analyses of liquid samples.
Iodine on absorbers
"B" criteria are applied to the following analyses:
Gamma Spectrometry where principal gamma energy used for identification is less than 250 Kev.
89Sr and 90Sr Determinations.
Gross Beta where samples are counted on the same date using the same reference nuclid l
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