ML20153H434

Informs That NRC Will Perform Independent Verification Insp During 860331-0411 at Facility Using NDE Van & Contractor Technicians.List of Required Info to Obtain Access to Facility & Weld Data Packages Requested

ML20153H434
Person / Time
Site:	Dresden
Issue date:	02/26/1986
From:	Harrison J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Reed C COMMONWEALTH EDISON CO.
References
NUDOCS 8603030115
Download: ML20153H434 (5)

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FEB 2 619M i Docket No. 50-247 Commonwealth Edison Company i ATTN: Mr. Coredell Reed i Vice President Post Office Box 767 Chicago, IL 60690 l

! Gentlemen-I

Subject:

NRC Independent Measurements The NRC will perform an independent verification inspection during the period 1 March 31 through April.11, 1986, at Dresden Station,, Unit 3, using the NRC I Nondestructive Examination (NDE) van and contractor technicians under NRC direction. The NDE van is expected to be onsite during the period March 27 j through April 11, 1986. The replacement piping system welds will be j re-examined on two sampling bases as a supplement to our current inspection l program. Similar nondestructive examinations have been conducted by the NRC at 2

other operating facilities.

The inspection will consist of required piping mode fabrication and installation examinations and review of quality documentation. The NRC staff will work i closely with your staff to develop a work schedule that will minimize cur impact on your outage schedule. We anticipate we will require six hours for

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i three nights, distributed over the period, of containment access to perform ,

i radiography. During the performance of radiography, we will require restricted [

j personnel access to containment for radiological safety purposes.

, You should prepare and transmit, to the attention of Harry W. Kcrch, Region I, a

list of required information necessary for the NRC Team to obtain access to the

Dresden Station. NRC Region III will select the welds for examination. Please '

j supply the weld data packages of those welds.

Members of your staff will be kept informed of our inspection effort and

{ significant findings. An exit meeting with you or members of your staff will

! be conducted at the close of the inspection, in accordance with out normal l procedures. >

! The evaluation of examination results and preparation of an inspection report

will be ccmpleted and the results of the inspection will be transn;itted to you l through the standard NRC inspection report.

! Sincerely, 0,J $ ni p n # by J.' O. " n. >

J. J.' Harrison, Chief i

Engineering Branch

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l SEE ATTACHEC DISTRIBUTION LIST 1 ,

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! 8603030115 860226 pf i PDR ADOCM 050C0247

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Attachments: F E B 2 (> 199 9 A. Data Packages B. Supplemental NDE Van Information C. Scope of Inspection cc w/ attachments:

D. L. Farrar, Director of Nuclear Licensing D. J. Scott, Plant Manager DCS/RSB (RIDS)

Licensing Fee Management Branch Resident Inspector, RIII Phyllis Dunton, Attorney General's Office, Environmental Control nivision J. Durr, RI RIII DWl RIII bW RIII/j bg RI f

/ttKey/lc Danie son Boyd Ha on 6 2/?t./86 t{1s is 2-1o 4 b

n ATTACHMENT A DATA PACKAGES After the welds have been selected by the NRC Region III Inspector for NDE inspection, we request that you prepare two packages containing the following on each weld.

Inspection Report Weld History (QC History)

Material Certifications for Base Materials Weld Wire Certifications Piping Drawings, Isometric of Weld Locations NDE Reports on all NDE Performed NDE Procedures for RT, PT, MT and VT Weld Procedures Bolt Torquing Procedures (Structural and Pipe Hangers)

Piping and Installation Procedure (Only Section that Specifies Code and Addenda)

The assembled packages should be forwarded to:

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION III 799 Roosevelt Road Glen Ellyn, Illinois 60137 ATTN: William J. Key The welds identified below have been selected by Region III for radiographic examination:

Weld No. ISO-01F Weld No. RRA-22F Weld No. SDA-01F Weld No. LPB-08F Weld No. RRB-06F Weld No. RRB-ISF Welds for ultrasonic, liquid penetrant, and magnetic particle examination will be selected so as not to interfere with scheduled activities.

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ATTACHMENT B SUPPLEMENTAL NDE VAN INFORMATION

1. NDE Van Support Requirements We request that the NRC-NDE van be positioned as near as practicable to

' the containment area e,7 trance to facilitate the performarce of inspections,

a. The van requires the following connections while sited at your facility:

- Site water with a garden hose connection - this water is for film rinse.

- Requirement for film rinse water drain (continual). No chemical disposal will occur from the van without prior concurrence from appropriate licensee personnel. At the end of the independent inspection, the NRC needs to dispose of the film developing chemicals prior to moving the van from the site.

- Two 30 amp, 110 volt circuits are required for operation of the f van.

b. The van will contain PT and MT approved materials. The team will need two rolls of your chemically approved tape and two approved markers for identifying welds and marking weld areas.

c. It will be necessary for you to remove the paint, rust or other material that could interfere with PT or MT on the selected v: elds.

Also, we will need scaffolding erected and insulation removed for access.

2. Administrative Information

a. The radiation source will be a nominal 100 curie IR-192 source. This source is licensed by NRC, but owned by the NRC contractor.

b. The names of the NRC and contractor NDE personnel will be supplied to you by Region I. Clearance for these personnel is necessary.

c. We request that you hold a mini-radiation ;afety training course for the NRC NDE personnel. This course should familiarize the personnel with your facility and procedures and should not exceed two hours in length,

d. A camera site pass will be needed for a Canon AE-1, 35am, camera, Serial No. 1969401.

e. The NDE personnel will be using 5 watt Motorola radios on the site; the frequency used by the NRC is 165.6625 MHz.

ATTACHMENT C SCOPE OF-INSPECTION The NDE van team will perform the following examinations and inspections as appropritte:

Radiogrgphy:

Pipe butt and socket welds and other appropriate pressure boundary components.

Ul trasonic*;:

Flaw detection and material thickness measurements, as appropriate, of piping, welds, structural components, vessrsls, heat exchangers, bolts and other equipment.

Liquid Penetrant:

Piping system components and structural elements.

Magnetic Particle Piping system components and structural elements.

Visual Examinations: _

Weld quality and configuration verification of piping and structural systems.

Quality Records Review:

Welding documentation, materials and personnel certification, NDE records to include radiographs.

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