IR 05000289/1979009
| ML19248D420 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/20/1979 |
| From: | Kottan J, Stohr J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19248D414 | List: |
| References | |
| 50-289-79-09, 50-289-79-9, 50-320-79-08, 50-320-79-8, NUDOCS 7908150760 | |
| Download: ML19248D420 (4) | |
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT Region I 50-289/79-09 Report No. 50-320/79-08 50-289 Docket No. 50-320 DPR-50 C
License No. OPR-73 Priority
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Category C
Licensee:
Metropolitan Edison Comoanv P. O. Box 542 Readino, Pennsylvania 19640 Facility Name: Three Mile Island, Units 1 and 2 Insoection at: Middletown, Pennsylvania Inspection conducted: March 15, 1979 M
Insoectors: 7N
[M M G /20!79 J. J. Kott$n, Radiation Specialist pate/ signed date signed care signed Approved by:
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J. P/St'ohr, Chi'ef, Environmental and Special cate signed Pfojects Section, FF&MS Branch Insoection Summary:
Ins::ection on March 15, 1979 (Recort Nos. 50-289/79-09 and 50-320/79-08)
Areas Insoected:
This report contains the results of an effluent sample split ::etween the licensee and NRC:I during a previous inspection on July 19-21,1978.
The comparison of these results involved no onsite time.
Results:
Within the area inspected, no items of noncomoliance were ocserved.
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O 79081501(o 7ef on I Form 12 (Rev. Aprii 77)
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DETAILS 1.
Persons Contacted R. Dubiel, Radiochemistry and Health Physics Supervisor G. Reed, Unit 1 Chemist 2.
Confirmatory Measurements In a previous inspection conducted on July 19-21, 1978, Inspection Reports 50-289/78-15 and 50-320/78-25, 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 Radiological and Environmental Services Laboratory (RESL).
The comparison of the analyses results indicated that all of the measurements were in agreement or possible agreement under the criteria used for comparing results (see Attachment 1).
The results of the comparisons are presented in Table I.
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 represen-tatives denoted in Paragraph 1.
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_ TABLE 1 litREE Mll E ISLAND VERIFICAT10f1 TEST RESULTS RESul.1S Ill MICR0 CURIES PER MILLILITER SAMPl E IS0TODE flRC VALUE LICEllSEE VALUE COMPARISON WECST
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1535 hrs 7/19/78 11 - 3 (2.02 1 0.02)E-2 (2.00 1 0.01)E-2 Agreement
- Gross Alpha (1 1 2)E-9
<6 E-9 tio Comparison
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- Sr-89 (0 1 2)E-8 (2.d _ l.5)E-8 fio Comparison
- Sr-90 (9 1 3)E-9
<8 E-9 tio Comparison
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Cs-134 (7.53 1 0.27)E-6 (8.08 1 0.18)E-6 Agreenent Cs-137 (1.07 1 0.04)E-5 (1 13 1 0.02)E-5 Agreenent Co-58 (1.26 1 0.05)E-5 (1.47 1 0.03)E-5 Agreenent Co-60 (2.10 10. 40)E-7 (2.94 1 1.48)E-7 Agreement WASTE GAS DLCAY TAllK
"C" 1650 hrs
'/19/78 Xe-133 (1.9 + 0.3)E-2 (3.01 + 0.01)E-2 Agreement n
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- The licensee's Technical Specifications require a minimum d >tectable dCtiVity of 5 x 10-8 tici/ml for Sr-89 and Sr-90. and 1 x 10- uC1/ml for
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gross alph *
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Attachment 1 Criteria for Comcarino Analvtical Measurements 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 uncertaioty.
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 must be considered acceptable as the resolution decreases.
LICENSEE VALUE RATIO = NRC' REFERENCE VALUE Possible Possible Resolution Acreement Acreement A Acreement B
<3 0.4 - 2.5 0.3 - 3.0 No Comcarison 4-7 0.5 - 2.0 0.4 - 2.5 0.3 - 3.0 8 - 15 0.6 - 1.66 0.5 - 2.0 0.4 - 2.5 16 - 50 0.75 - 1.33 u.6 - 1. 66 0.5 - 2.0 51 - 200 0.80 - 1.25 0.75 - 1.33 0.6 - 1.66
>200 0.85 - 1.18 0.80 - 1.25 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 sarf.es.
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.
895r and 90Sr Determinations.
Gross Seta where samples are counted on the same date using the same reference nuclide.
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