IR 05000219/1986026
| ML20210E557 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 09/16/1986 |
| From: | Cioffi J, Mcfadden J, Shanbaky M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML20210E537 | List: |
| References | |
| 50-219-86-26, NUDOCS 8609250043 | |
| Download: ML20210E557 (4) | |
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U.S. NUCLEAR REGULATORY COMMISSION
REGION I
Report No.
50-219 Docket No.
50-219/86-26 Licensee: GPU Nuclear Corporation P.O. Box 388 Forked River, New Jersey 08731 Facility Name: Oyster Creek Inspection At:
Fork River New Jersey Inspection Conducted: August 26, 1986 Inspectors:
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Jean Ciof fi, / Radiatio Spcip11st,FRPS date k
Chu) fL ~ /t L-9L L
JackM'cFaddf,~ Radiation,Spcialist,FRPS
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date Approved by:
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M. Shanbaky, Chief, Facilit#es Radiation date Protection Section, EP & RPB Inspection Summary:
Inspection conducted on August 26, 1986 (50-219/86-26)
Areas Inspected:
Special, announced inspection to review the planning and preparation for diving operations to repair a weld on the steam dryer in the equipment pit.
Results:
No violations or deviations were identified during this inspection.
8609250043 860717 PDR ADOCK 00000219 G
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DETAILS 1.0 Personnel Contacted G. Cain, Dive Supervisor, N.U.C.
D. Harbison, Quality Control, G.E.
- J. Leavitt, Deputy Director, Radiological Controls, GPU R. Loe, Radiological Engineer, GPU W. Quinlan, Group Rad Con Supervisor, GPU P. Raider, Engineering Supervisor, G.E G. Secik, MCF Production Project Engineer, GPU D. Turner, Director, Radiological Controls, GPU D. Weis, Project Supervisor, G.E.
- Denotes attendance at the exit interview.
2.0 Purpose The purpose of this inspection was to review the licensee's planning and preparation for the underwatb repair of the steam dryer in the Equipment Storage Pool.
3.0 Status of Planning and Preparation for the Underwater Repair of the Steam Dryer The licensee's program for planning and preparation for the underwater repair of the steam dryer was reviewed with respect to criteria contained in:
10 CFR 20.201, 202, 203, 206, and 401
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Technical Specifications 6.11, and 6.13
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Information Notice 82-31: Overexposure of Diver in during work in Fuel
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Storage Pool.
Information Notice 84-61 attachment, entitled " Guidance for Diving
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Operations."
The licensee's performance related to the above criteria was determined from:
the ALARA review package, number A15C-51659, revision 1, "RB 119
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Underwater Repair of the Steam Dryer in the Equipment Storage Pool",
procedure A15C-51659, revision 0, " Underwater Repair of the Steam
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special survey map performec August 24, 1986 of the area supporting
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the dive and repair,
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a tour of the reactor building elevation 119, and the staging area for the dive, and discussions with licensee and contractor personnel.
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Within the scope of this review, the inspector found no violations or
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deviations. The licensee planned to use the same divers they had used for a similar diving evolution one year ago. Mock-up training of the dive was conducted at the diving company's Connecticut site and had been witnessed by the General Electric Quality Assurance Group. The licensee had. current survey maps to support the planned radiological controls. Additionally the licensee considered the following additional actions, which were identified in inspection report No. 86-02 (open item number 86-02-04):
a.
Evaluate potential neutron doses to divers.
Although this particular diving operation did not warrant the esti-mation of neutron doses, the licensee did perform neutron surveys of the work area surrounding the steam dryer with a specially adapted holder for the albedo neutron dosimeters normally used at the facil-ity. The licensee plans to continue this practice for all diving operations and apply the criteria in Regulatory Guide 8.14, " Person-nel Neutron Dosimeters" to calculate neutron doses based on neutron to gamma ratios, b.
Clearly define minimum requirements for source / response checking of survey instruments and alarming dosimeters prior to each dive.
The licensee plans to response check all instruments used to monitor the diving operation with a check source daily.
The response check will verify equipment operability only and will be qualitative in nature due to the source strength necessary to check these instru-ments. All instruments will have been fully calibrated prior to use.
c.
Provide specific guidance relative to minimum acceptable water clarity for diving operations to start / continue.
The licensee plans to qualitatively check water clarity by ensuring that the deepest radiation monitoring device can be clearly seen.
d.
Establish diving suit contamination / radiation limits.
The licensee established a trigger level for decontamination of the diving suit at a dose rate of 10 millirads per hour. Additionally, the licensee plans to minimize contamination of the diving suit by wetting the divers with deionized water prior to entering the pool.
This practice successfully reduced the contamination of the diving suits with radioactive material in previous dive,.
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Provide controls (as necessary) to ensure the use of proper instru-mentation for performing underwater surveys by a diver.
All instrumentation used for the diving operations will be provided by the licensee's health physics organization, using only underwater survey meters which were calibrated prior to the dive.
Surveys will be performed by health physics. The diver will carry a survey in-strument (provided by the licensee's health physics group) for in-formation only.
Based upon the above review, item 86-02-04 's closed.
4.0 Exit Interview The inspector met with licensee representatives at the conclusion of the inspection on August 26, 1986. 'The inspector summarized the purpose and scope of the inspection, and the inspection findings.
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