IR 05000443/1987015

Insp Rept 50-443/87-15 on 870623-26.No Violations Noted. Major Areas Inspected:Nonradiological Chemistry Program, Including Analytical Procedure Evaluations & Measurement Control

ML20236P654
Person / Time
Site:	Seabrook
Issue date:	08/03/1987
From:	Pasciak W, Zibulsky H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20236N726	List: IR 05000443/1987015 ML20236N723
References
50-443-87-15, NUDOCS 8708120458
Download: ML20236P654 (5)

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i U.S. NUCLEAR REGULATORY COMMISSION L

REGION:I

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Report No.. 50-443/87-15 Docket-No 50-443

Category B

l O cense.No. -CPPR-135 Priority

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' Licensee:

Public' Service of New Hampshire-P.O. Box 700 Seabrook, New Hampshire 03874

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Facility Name: -Seabrook Power Station, Unit 1-Inspection At:

Seabrook, New Hampshire-

' Inspection Conducted: June 23-26, 1987

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i Inspectors:

b F-3-E 7 H Zibu l y,\\

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Approved _by:

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ciak, Chief, Effluents 7adiation

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Prot on Section,,DRSS

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' Ins *p'ection Summary:

Inspection on June 23-26j 1987 (Report No. 50-443/87-15)

'. Areas Inspected:

Routine, announced inspection of the nonradiological chemistry program. Areas reviewed included analytical' procedure evaluations a

and measurement control.

Results: No violations were identified.

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Details 1.

IndividualsIContacted

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• J., Martin, Plant Engineering Manager

• Ei Corley, QA. Staff Engineer

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1*G. Kann, Program Support Manager

• R. Cooney,. Technical-Projects Manager i

'*M. Kenney, System Support Manager l

• J.:Tefft, RS-Project Engineer

• J. Linville, Chemistry Department Supervisor

• J. Gallagher, Chemistry Supervisor

• R. Litman,-Chemistry Supervisor

• W. Temple, Licensing Coordinator

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'.*A. Fralich, Lead QC. Inspector

• P. Hannes,: Systems Supervisor L. Rabideau, Chemist

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R. Campion, Chemistry Foreman

• Denotes those present at the exit interview

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The inspector also interviewed other licensee employees including members of the chemistry staff.

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Analytical Procedure Evaluation During the'ir.spection, standard chemical solutions were submitted to the licensee for' analysis.

The standard solutions were prepared by.the Brookhaven National Laboratory for the NRC, and the standards were analyzed by the licensee using normal methods and equipment.. The analysis of standards is used to verify the licensee's capability to monitor chemical parameters in various plant systems with respect to Technical Specification requirements and other regulatory requirements.

In addition, the analysis of standards is used to evaluate the licensee's analytical procedures with respect to accuracy and precision.

T esults of the standard measurements comparison indicated that two out of thirty-three comparisons were in disagreement under the criteria used for comparing results (see attachment 1). The results of the

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comparisons are listed in Table 1.

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The ammonia disagreement was probably due to the response of the specific

ion electrode at the low concentration. There was no ammonia control chart so the reason for the disagreement is inconclusive. Because the gas diffused electrode used in the ammonia analysis is unstable, the licensee r

calibrated the spectrophotometer for the Nesslerization procedure to be used if'the electrode method fluctuates.

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The hydrazine disagreement was probably due to a sampling error. There was no hydrazine control chart to help identify the cause for the disagreement.

The two disagreements are not considered significant.

Since the last inspection in the nonradiological chemistry area (50-443/86-22), there has been improvement in the analytical methods and the laboratory equipment. The laboratory can now analyze the required analytes in.the concentrations that will be present when they are at full power.

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Measurement Control For most of the analytical procedures, the licensee initiated a two standards program which includes one standard stock solution dedicated for instrument calibration and another independent standard stock solution dedicated for quality control.

The licensee was able to verify the integrity of the standard solutions. The licensee will include those analyses that'do not presently have two standards into the two standards program, e.g. ammonia by specific ion electrode.

The licensee generated control charts with acceptance criteria of 12 sigma and an unacceptable parameter of 3 sigma. There were no I

measurement control charts for ammonia, hydrazine, silica and some metals.

For those analyses, bias identification and trending could not be made.

The licensee will generate control charts for those measurements that are required for Technical Specification and vendor and fuel warranty requirements.

When the two standards program and the needed measurement control charts are completed, the licensee will have a more than adequate measurement program.

4.

Exit Interview The inspector met with the licensee representatives (denoted in paragraph 1) at the conclusion of the inspection on June 26, 1987, and summarized the scope and findings of the inspection. At no time during this i

inspection was written material provided to the licensee by the inspector.

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Table 1 Capability Test Results

Seabrook Nuclear Power Plant Chemical Analytical Ratio Parameter Procedure NRC Value Lic. Value (Lic./NRC) Comparison Results in parts per billon (ppb)

Fluoride Sp. Ion Electrode 23.110.5 21.7 0.6 0.94 0.03 agreement 43.5 1.9 41.3 0.6 0.95 0.04 agreement 83.5 2.8 82.3 1.5 0.99 0.04 agreement Chloride Ion Chromatography 24.1 3.1 20.0 1.0 0.83 0.11 agreement l

37.411.2 38.7 0.7 1.03 0.04 agreement 80.512.2 85.0 3.7 1.06 0.05 agreement i

Sulfate Ion Chromatography 20.0 0.9 19.5 0.5 0.98 0.05 agreement 41.0 2.4 40.1 0.2 0.98 0.06 agreement

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80.8 3.0 78.7 1.0 0.97 0.04 agreement

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Sodium Graphite Furnace 4.58 0.5 5.5 0.2 1.20 0.14 agreement 9.23 0.8 9.8 0.6 1.06 0.11 agreement 14.4 0.8 13.3 0.4 0.92 0.06 agreement Iron Graphite Furnace 4.89 0.35 4.56 0.08 0.93 0.07 agreement 9.5510.34 10.2 0.55 1.07 0.07 agreement 14.7 0.42 15.4 0.15 1.05 0.03 agreement Copper Graphite Furnace 4.68 0.24 4.6 0.06 0.98 0.05 agreement

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9.66 0.49 9.910.26 1.0210.06 agreement i

14.5 0.60 14.8 0.06 1.02 0.04 agreement Ammonia Sp. Ion Electrode 87.615.3 109 4.4 1.2410.09 disagreement 314 26 292 3.0 0.93 0.08 agreement 938 85 995 8.0 1.06 0.10 agreement i

Ammonia Spectrophotometry 87.6 5.3 90.3 4.0 1.03 0.08 agreement 314 26 283 6.0 0.90 0.08 agreement 938 85 995 2.0 1.06 0.10 agreement l

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Hydrazine Spectrophotometry 22.3 1.4 20.9 0.12 0.94 0.06 agreement i

56.9 0.7 53.2 0.8 0.93 0.02 disagreement l

52.0 0.5 53.1 0.5 1.02 0.01 agreement Silica Spectrophotometry 54.3 5.6 54.1 0.3 1.0 agreement 109 7.0 105 0.6 0.96 0.06 agreement 160 5.0 156 1.5 0.98 0.03 agreement Results in parts per million (ppm)

Boron Titration (auto).

1000 10 1009 1 1.0110.01 agreement 3024 46 3006 2 0.99 0.02 agreement 4947 61 5021 9 1.01 0.01 agreement I

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l ATTACHMENT 1 i

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CRITERIA FOR COMPARING ANALYTICAL MEASUREMENTS l

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l This attachment provides criteria for comparing results of capability tests.

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In these criteria the judgement limits are based on the uncertainty of the i

ratio of the licensee's value to the NRC value.

The following steps are l

performed:

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(1) the ratio of the licensee's value to the NRC value is computed (ratio =

censee Value),

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NRC Value

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(2) the uncertainty of the ratio is propagated.1 If the absolute value of one minus the ratio is less than or equal to twice the ratio uncertainty, the results are in agreement.

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(ll-ratiol 5 2 uncertainty)

Z=f'then [S S

S f+f

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2(From:

Bevington, P.R., Data Reduction and Error Analysis for the Physical Sciences, McGraw-Hill, New York, 1969)

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