ML20247K022

Mgt Meeting Rept 50-289/89-09 on 890428.Major Area Discussed:Nrc Nonradiological Chemistry Program for Clarification on NRC Acceptance Criteria & Statistical Method Used to Evaluate Program & NRC Training Program

ML20247K022
Person / Time
Site:	Three Mile Island
Issue date:	05/15/1989
From:	Jang J, Kottan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20247J999	List: ML20247J995 ML20247K022
References
50-289-89-09-MM, 50-289-89-9-MM, NUDOCS 8906010186
Download: ML20247K022 (3)

See also: IR 05000289/1989009

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U.S. NUCLEAR REGULATORY COMMISSION

REGION I

Docket No. 50-289-

License No. DPR-50

Licensee : GPU Nuclear Corporation

P.O. Box 480

Middletown, PA 17057

Facility Name : Three Mile Island Nuclear Station, Unit 1

Type of Meeting : Management Maeting

Meeting Date : April BS, 1989-

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Prepared by : - '

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J.t[ang,Sr.R .

on Specialist date

Approved by:

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M f'#- N

J.J. Kottan, dcfing. Chief, Effluents Radiation date

Protection Section

Meeting Summary : A management meeting was held at Region I, King of Prussia,

Pennsylvania on April 28, 1989, to discuss NRC's non-radiological chemistry

program. The licensee requested this meeting to discuss the findings from

non-radiological inspections performed during the weeks of November 14-18, 1988

and A ril 17-21, 1989. Specifically the licensee wanted the clarification

on: 1 the NRC's acceptance criteria as well as the statistical method used to

evalu te the non-radiological chemistry program, and 2) inspection findings

f related to their training and calibration program. After lengthy discussions,

the NRC stated that they understood the concerns expressed by the licensee and

further stated that the NRC's acceptance criteria used in the non-radiological

chemistry inspection would be undergoing review as part of the NRC's continuing

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assessment of its non-radiological chemistry program.

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DETAILS

1. Meeting Attendees

a. GPU Nuclear Corporation /TMI Unit 1

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TMI-1

R.

E. McGoey, ManagerofofChemistry

fuhrer, Manager Licensing, TMI-1

G.vonNieda, Chemistry /MaterialDirector,GPUN

R. Ebert, Special Project Manager, GPUN

M. Drski, Staff Consultant QA, GPUN

b. Nuclear Regulatory Commission

R. Bellamy, Chief, FRS&SB, DRSS, Region I

W. Pasciak, Chief, ERPS, FRS&SB, DRSS, Region I

C. Cowgill, THI-1

R. Hernan, Chief,Project

RPS Section 1A,NRR,

Manager, DRP,HQsRegion I

J. Jang, Sr. Radiation Specialist, ERPS, Region I

J. Kottan, Laboratory Specialist, ERPS, Region I

N. McNamara, Laboratory Assistant, ERPS, Region I

2. Background

During i NRC inspection performed at the TMI-1 site in November, 1988

(Report Number 50-289/88-30), the licensee analyzed NRC's non-radiological

chemical standard solutions (prepared by Brookhaven National Laboratory for

using the licensee's normal methods and equipment. Evaluation of the

NRC)lts

resu indicated about 31 percent of the results were in disagreement with

the criteria used for comparison. A subseouent inspection was conducted in

April 1989 (Report Number and all results were in agreement

with the same criteria used for compar50-289/89-09)ison except one disagreement which

insignificant because of the high precision associated with the result.

This meeting was conducted at the licensee's request in order to discuss the

NRC's non-radiological chemistry program and the results of the above

inspections.

3. Discussion Summary

Dr. Pasciak opened the meeting and the attendees ware introduced.

During the meeting the NRC staff presented the background of the NRC's

non-radiological chemistry program:

o Purposes of inspections in the area of non-radiological chemistry

o Establishment of comparison criteria

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o Determination of dilution factor of the NRC's standard solutions based on

the licensee's (TMI)-Minimum Detectable Concentrations (MDCs).

o The NRC staff presented the findings of 1988 and 1989 inspections.

The NRC staff also presented the current industrial feedwater chemistry

guidelines for analytical capabilities (EPRI) and compared.the licensee's

action guidelines used in their feedwater chemistry.

The licensee's presentations included a general statement of their definition

of MDCs in the laboratory practice. The following details were discussed.

o TMI-1 chemistry laboratory did not have a statistical bases for MDCs but

these MDCs are reporting levels.

o The licensee did not agree with the 1988 inspection findings because they

felt the inspection report did not properly explain the criteria for the

measurement disagreements. Nor did they understand the basis used by the

inspector for concluding that their training and calibration program

needed to be improved.

o The licensee evaluated the NRC's comparison criteria and concluded

that "t-test" is more appropriate statistical evaluation because

the acceptance criteria is based on random error and small sample size.

The licensee also stated that comparison criteria based on actual results

between licensees would also be appropriate for comparing results.

o The licensee requested to the NRC to re-evaluate the current acceptance

criteria.

4. Meeting Conclusions

Dr. Pasciak concluded the meeting by stating that the licensee's comments

were appreciated and the NRC's non-radiological chemistry 3rogram will be

reviewed for mutual benefits. The licensee stated that tie non-radiole]ical

program is an excellent program to identify strong and weaknesc areas in the

analytical laboratory.

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