ML20137D756

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Sanitized Safeguards Insp Rept 70-1113/83-29 on 831031-1108. No Noncompliance Noted.Major Areas Inspected:Mc 85206B Measurement & Statistical Controls
ML20137D756
Person / Time
Site: 07001113
Issue date: 11/29/1983
From: Earnestine Clay, Mcalpine E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20137D194 List:
References
FOIA-85-554 70-1113-83-29, 70-1113-83-29-0, NUDOCS 8511270142
Download: ML20137D756 (10)
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Report No.: 70-1113/83 .

Docket No. 70-1113 Licens'e No. SNM-1097 Safeguards Group No. III Licensee: General Electric Company P. O. Box 780 Wilmington, NC 28401 Date of Inspection: Unannounced Material Control and Accountability Inspector: bN 11[ kkp 3 ofte Signed E.L. Clay,SafeguardsEngjnehr Approved by: b@Y1bo).m E. J. McAlpine, Chief,\ Material Control and Il[29 /i 3 Oate Signed Accountability Section, Division of Emergency Preparedness and Materials Safety Programs Inspection Summary Area' Inspected: MC 85206B Measurement and Statistical Controls (ACM Incinerator ~ ~

Measurement System). .

The inspection involved 28 inspection hours by one NRC inspector and was begun during the regular hours.

Results: The licensee was found to ,be in compliance with P.4RC requirements in the areas examined during the inspection.

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reproduced without specific approval of IE:II REPORT DETAILS Report No. 70-1113/83-29

1. Key Persons Contacted
  • C. M. Vaughan, Acting Manager, Regulatory Compliance "H. Sterns, Acting Manager, Manufacturing Technology & Engineering Operations "R. L. Torres, Manager, Radiation Protection "J. R. Hettles, Acting Manager, Planning and Projects "B. F. Bentley, Acting Manager, Fuels Manufacturing
  • P. E. Younghans, Manager, Materials Operations
  • F. C. Shoenig, Acting Manager, Microelectionics Applications and Services Operations
  • W. C. Peters, Manager, Nuclear Safety Engineering
  • W. S. Haverty, Analyst, Licensing and Nuclear Materials Management
  • B. S. Dunn, Specialist, licensing Administration D. R. McLemore, Manager, Plant Automation J. L. Pickett, Specialist, Management Systems, Plant Automation B. S. Guilliam, Engineer, Electronics Engineering, Plant Automation C. L. Nixon, Technican, Licensing and Nuclear Materials Management R. ' L. Bruce, Analyst, Licensing and Nuclear Materials Management G. R. Mallett, Senior Engineer, Licensing and Nuclear Materials Management A. W. Cameron, Supervisor, Fuels Support . .

The inspector also interviewed several other licensee employees.

" Denotes those present at the exit interview.

2. MC 85206B Measurement and Statistical Controls (Incinerator Measurements System)

The General Electric Company, Wilmington, North Carolina incinerator facility incinerates and measures the SNM content of combustible waste materials generated in various plant processing areas. The combustible waste materials to be incinerated are segregated from noncombustible waste materials in the facility decon room. The incinerator facility operates in a continuous burn mode and its measurement' systems weigh and measure each item for SNM content prior to incineration , maintains a balance of SNM holdup in the incinerator during incineratioa operations and weighs and

.. measures the SNM content of the resulting ash removed from the incinerator.

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i The licensee's management organization provides a system of check and balances for accountability measurements. The facility Operations, Measurements and Accounting groups have different reporting avenues to responsible management. The custody, measurements and accounting functions for SNM control do not report directly through the same supervisory line. The Licensing and Nuclear Materials Management (LANMM) group coordinates the overall functions for accounting for SNM at the site. At this time the following groups are responsible for measurement and accounting operations associated with the facility

, incinerator measurement systems.

(1) L&NMM is responsible for coordinating SNM measurement effects, ,

qualifying and testing procedures, system qualifications and '

routine data evaluations of measurements performed.

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(2) Microelectronics Applications and Services Operations. Automation Technology Unit is responsible for developing and automating operations associated with the ACM measurement system. This, unit is also responsible for the .dev'elopmental words to qualify the system for acceptable accountability measurements and for fabrication of the systems hardware and electronics sof tware.

-(3) Microelectronics Applications and Services Operations, Cont.rol and Instrument Support Unit is responsible for maintaining the electronics used for operattoris and accountability measurement.

. (4) Fuel Manufacturing Section, Fuel Shop Operations Unit is responsible for transporting scrap / waste from the process areas to the measurement site and performing all SNM accountability measurements.

Docket 70-1113 License Conditions to Materials and Plant Protection Amendment MPP-3 revised and amended October 6, 1983 for License No. SNM-1097 were reviewed during this inspection. The licensee was determined to be complying with the five license conditions applicable to SNM measurements by the ACM measurement system.

A review of the facility FNHC plan applicable to NDA measurement by the incinerator ACM NOA measurement ~ system was conducted during this inspection. Sections 3.0 Measurements, 4.0 Measurement Control Program and Appendix C-3, Specially Accepted Safeguards Systems, provide descriptions and methods used to determine the U-235 content of SNM measured by NDA techniques at the facility. The review indicated that the licensee was following his current FNMC plan for making NOA measurements by the ACM NOA system.

Each facility operating group, develops and implements standard operating procedures (SOP) which outline duties and responsibilities and provide operational guidance to enable proper operation of the incinerator facility within approved safe design limits. Many SOPS have been developed, approved and implemented and many more are in the process of being developed. At the time of this inspection, the incinerator facility was operating and performing ABM and ACM measure-ments using temporary operating instructions (TO ). To the extent examined, the licensee was determined to be complying with the requirements of the following SOPS.

(1) Report No. AT-82-667, Standards, Active Box Monitor - Active Can Monitor, J. L. Pickett, Automation Technology, February 1983.

(2) SOP, Quality Notice (QN) No. F-1101, Revision 0, Qualification of Ash Can Monitor, dated April 9, 1982.

(,3) 'QN No. F-G 1073, Revision 0, Qualification Test For the Active Box Monitor and the. Active Can Monitor, dated February 1, 1982. .

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, 4 (4) QN No. F-Q-1510, Revision 0, Results of the Requalification of the Ash Can Monitor (ACM), dated August 24, 1983.

(5) QN No.. F-0-1504, Revision 0, Qualification Test for the Ash Can Monitor, dated August 1,1983.

(6) Temporary Operating Instructions (TOI) No. A-889, Operation of the ABM in Continuous Burn Mode, dated October 31, 1983.

(7) T01 No. A-778, Operation of the ACM for Continuous Burning Cycles, dated October 31, 1983.

(8) MS&A, Revision 1. Active Box Monitor Measurement System Main-tenance Manual, dated October 1983.

(9) AT-83-811, Active Box Monitor Material Handling System Maintenance Manual, dated October 1983.

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License Condition 4.3 exempts the Itcensee from gjotting and physically maintaining control charts for measure.?ents systems. Paragrh 4.5.1 ,

and 4.5.2 of the facility FNMC plan permits the licensee to(i I

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,, I The uncertaintties for process i items measured by the ACM are exhibited to Table 1. The construction of these control limits will be statistically evaluated on subsequent inspections (83-29-01).

The licensee is performing qualification and requalification tests of the ACM measurement system in accordance with approved test criteria.

The ACM was first qualified to perform accountability measurements in Apri,1 1983 and requalified in August 1983, just prior to being used for accountability measurements. The qualification tests were performed by measuring approved NDA standards and process items over a perioc pf

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~~3-5 time. The test data was evaluated by L&NMM who concluded that no significant bias, at the 954 significance level, in the ACM measurement system existed. Based upon these tests results, the licensee concluded that the ACM measurement system is qualified to perform NOA mea)ure-ments of incinerator ash for accountability purposes.

At tha time of this inspection, the licensee was using thirty-one NOA standards that had been fabricated, tested and approved for use in performing NOA accountability measurements with the ACM measurement system. The matrix materials used in fabricating these standards was clean ash, containing no SNM, that had been obtained f rom a local company and from facility incinerated materials withdrawn from the facility stores especially for this project. The SNM used in fabricating these standards was well characterized 002 powder. The matrix materials, and the UO2 powder used to fabricate these standards were analyzed by the facility Chemet and Ledoux laboratories.

Traceability of these standards to a National Measurement System was accomplished through analytical techniques employed by the measuring laboratories to measure NBL standard 002 material. A listing of all facility NOA standards used to perform measurements by the ACM is presented in Table II.

Calibration curves for the ABM and ACM measurement systems were produced after the isotope peaks of interest were. identi fied. The peaks of interest were identified by pass'vely and actively measuring a uranium standard, Co-60 source, and a Cs-137 source in a Cd lined well. A total of nine NOA standards were passively and actively measured to produce the data used in the calibration curves. A total of eight calibration curves were used for performing .neasurements by the ABM and ACM measurement systems. All incinerator measurement systems calibration curves are updated, at least, semiannually. The types of calibration curves and data fits used to establish the calibration curves are shown in Table III. The construction of these calibration curves will be examined on subsequent inspections (83-29-02).

Measurement techniques employed by the ABM measurement system were not examined during this inspection. The inspector observed measurement techniques employed by the ACM for_ active and passive accountability l measurements and determined that i

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of _the quality of measurements by the ACM measurement system was not performed during this inspection.

3. Exit Interview The inspection scope and findings were summarized on November 4, 1983, with those persons indicated in paragraph I above. Additional discussions were held with the licensee on November 8, 1983.

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ACM PROCESS ITEMS MEASUREMENTS UNCERTAINITIES (70-1113/83-29) _. __

Isotope Quantity Measured Measured l

U-238 To 1000g '

i U-238 Over 1000g 4 U-235 To 40g  ;

I U-235 40g to 80g i

U-235 Over 80g I

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TABLE-II ACM NOA STANDARDS (70-1113/83-29)

Standard ENR. U-235 U-238 No.  % U-235 (Ges.) (Gms.)

ACM-01 (1) -0.78 10.97 1,393.04

-02 (1) 0.78 54.83 6,965.18

-03 (1) 0.78 109.65 13,930.38

-04 (1) 2.53 10.06 386.83

-05 (1) 2.53 50.25 1,932.85

-06 2.53 100.53 3.866.59

-07 (1) 2.53 301.60 11,600.63

-08 2.53 502.68 19,334.68

-09 (1) 3.95 49.68 1,207.68

-10 (1) 3.95 298.10 7,246.94

-11 3.95 496.85 12,078.51  !

-12 2.50 100.37 3,866.75

-13 2.53 100.37 3,866.75

-14 2.53 150.18 1,933.38

-21 0.78 10.97 1,393.04

-22 0.78 ~54.83 6.965.18

-23 0.78 109.65 13,930.38

-24 2.52 10.06 388.60

-25 2.52 50.27 1,942.14

-26 2.52 100.54 3,884.28

-27 2.52 301.63 11,653.70

-28 2.52 502.73 19,423.12

-32 2.53 100.17 3,862.41

-A 3.02 100.79 3,234.47

-8 ,2.53 100.17 3,862.41

-C 0.73 29.49 4,016.00

-34 2.51 300.00 11,652.00

-35 (1) (2) 2.51 100.00 3,884.00

-36 2.51 50.00 1,942.00

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2.51 500.00 19,420.00 299GSA 0001 (3) 2.99 99.94 3.239.30 (1)' Routinely used for calibration checks (2) Measured escr. shift to control quality of measurement (3) Contains Gado11na 0

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. TABLE-III ABM AND ACM CALIBRATION CURVES ,

(70-1113/83-29) i Measurement Type Isotope Calibration  ;

System Measurement Measured Curve Fit ABM Passive U-238 Liner Passive U-235 Quadratic  ;

A8M Active U-238 Quadratic. I Active U-235 Quadratic ACM Passive U-238 Quadratic Passive U-235 Linear ACM active U-238 Quadratic Active U-235 Cubic

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