ML20215H794
| ML20215H794 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 06/12/1987 |
| From: | Whittier G Maine Yankee |
| To: | Russell W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| 8793L-SDE, GDW-87-146, MN-87-71, NUDOCS 8706240214 | |
| Download: ML20215H794 (3) | |
Text
,
MAIRE HARHEE ATOMICPOWER00MPARUe
,uavg,,%2n",2,"g's h
(207) 623-3521 e
June 12, 1987 HN-87-71 GDH-87-146 Region I United States Nuclear Regulatory Commission Office of Ir.spection and Enforcement 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention: Mr. William T. Russell, Regional Administrator
References:
(a)
License No. DPR-36 (Docket No. 50-309)
(b) USNRC Letter to MYAPCo dated May 12, 1987 - Inspection Report No. 87-07
Subject:
Response to Notice of Violation Gentlemen:
In response to the Notice of Violation received in Reference (b), Maine Yankee has taken the following actions to achieve compliance and to prevent future occurrences. The Notice of Violation contained in Reference (b) is repested below.
Notice of Violation Technical Specification 5.12.1 requires, in part, that each high radiation j
area in which the intensity of radiation is at such levels that a major q
portion of the body could receive in any one hour a dose in excess of 100 mrem shall be barricaded and conspicuously posted as a high radiation area.
a.
Contrary to the above, on April 7,1987, whole body dose rates in excess of 100 mR/hr were present on the -2 foot elevation, adjacent to the access area to loop #1 in the Containment Building, and were inadequately posted and barricaded, b.
Contrary to the above, on April 8,1987, between 1230 and 1410, access to Reactor Coolant Pump #2, an area with whole body radiation intensities in excess of 100 mR/hr, was not barricaded nor conspicuously posted.
8706240214 B70612 PDR ADOCK 05000309 o
PDR f
I 8793L-SDE O
f.E - O \\ ;
r M AINE YANKEE ATOMIC POWER COMPANY i
United States Nuclear Regulatory Commission Page Two Attention: Mr. Hilliam T. Russell, Regional. Administrator MN-87-71 c.
Contrary to the above, on April 10, 1987, at approximately 1005, access to the refueling cavity, an area with whole body radiation intensities in excess of 100 mR/hr, was not barricaded nor conspicuously posted.
The above multiple instances of failure to adequately control high radiation areas collectively constitute a Severity Level IV violation (Supplement IV).
Maine Yankee Resoonse Maine Yankee took the following immediate action regarding maintaining the proper posting and barricading of high radiation areas in Containment identified in a, b, and c above.
a.
The area underneath the hot spot which produced dose rates greater than 100 mR/hr at the -2 foot elevation adjacent to Loop #1 access in containment was immediately barricaded and posted at a point where whole body dose rates were less than 100 mR/hr.
b.
Although the access to the #2 RCP had been properly posted and barricaded, the workers who were continuously moving in and out of the area improperly took down the barricade to provide easy access and failed to replace it each time they exited the high radiation area. Upon identification of the barricade being down, the barricade and posting was immediately repositioned.
The technicians covering the work area were instructed to maintain the barricade across the stairway.
The workers and their foremen were also instructed about the need to keep radiological barricades in place at all times.
c.
The access to the refueling cavity had also been properly posted and barricaded. When workers exited the refueling cavity they took down the rope barrier and failed to reposition it.
The workers, their supervisors, and the radiological controls technicians covering the work were all instructed on the importance of keeping radiological barricades in place at all times.
Full compliance was achieved on April 10, 1987.
To prevent a recurrence, written job coverage instructions, which included the requirement for surveillance and maintenance of postings and barricades, were issued to all radiation control work stations. More frequent supervisory inspections of containment work locations have been conducted, especially in the areas referenced above, to verify the location and posting of barricades for high radiation areas.
1 8793L-SDE
M AINE YANKEE ATOMIC POWER COMPANY United States Nuclear Regulatory Commission Page Three Attention: Mr. Hilliam T. Russell, Regional Administrator MN-87-71 If you should have any questions, please feel free to contact me.
Very truly yours,
]
MAINE YANKEE ATOMIC POWER COMPANY
(
8 G. D. Whittier, Manager Nuclear Engineering anc Licensing GDH/bjp cc: Mr. Victor Nerses Mr. Pat Sears Mr. Cornelius F. Holden f
8793L-SDE