ML19256E123
| ML19256E123 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 09/28/1979 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Goodwin C PORTLAND GENERAL ELECTRIC CO. |
| References | |
| NUDOCS 7910290133 | |
| Download: ML19256E123 (6) | |
Text
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,o SEP 2 81979 Docket No. 50-344 Mr. Charles Goodwin, Jr.
Assistant Vice President Portland General Electric Company 121 S.W. Salmon Street Portland, Oregon 97204
Dear Mr. Goodwin:
In conducting our review of PGE-1020, " Report on Design Modifications for the Trojan Control Building," as supplemented and amended, we have deter-mined that we will need the additional information identified in the enclosure to continue our review.
Further questions will be forthcoming the week of October 1, at which time we will be requesting a meeting with you to dis-cuss all outstanding questions ano concerns. This meeting should be scheduled at the earliest time at which you will be prepared to fully discuss the matters addressed in our questions.
Your response is requested as soon as possible. Three signed originals and forty copi.es are required.
Please contact us if you have any questions concerning this request.
Sincerely, h
A. Schwencer, Chief
%I Operating Reactors Branch #1 Division of Operating Reactors
Enclosure:
Request for Additional Information 1D1 07) cc: w/ encl osure fae next page 7910290/3 3 f
j Mr. Charles Goodwin, or.
Portl and General Electric Company dEPTEl.!BER 2 8 1979 cc:
Mr. H. H. Phillips Mr. John A. rsullberg Portland General Electric Company Route One 121 S.W. Salmon Street Box 250Q Portlard, Oregon 97204 Sauvie Island, Oregon 97231 Warren Hastings, Esquire.
Ms. Nina Bell Counsel for Portland General 728 S.E. 26th Street Electric Company Portland, Oregon 97214 121 S.W. Salnon Street Portland, Oregon 97204 Mr. Stephen M. Willingham
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55~ N. Tomahawk Drive Mr. Jack W. Lentsch, Manager Portiand, Oregon 97217 Generation Licensing and Analysis Portland General Electric Company Mr. Eugene Rosolie 121 S.W. Salmon Street Coalition for Safe Power Portland, Oregon 97204 215 S.E. 9th Avenue Portland, 0,egon 97214 Columbia County Courthouse Law Library, Circuit Court Room Richard M. Sandvik, Esquire St. Helens, Oregon 97501 Frank W. Ostrander, Jr.
Counsel for Oregon Dept. of Director, Oregon Department of Energy Energy Labor and Industries ?uilding, Room 111 500 Pacific Building Salem, Oregon 97310 520 S.W. Yamhill Portland, Oregon 97204 Dr. Hugh D. Paxton 1220 41st. Street Maurice Axelrad, Esquire Los Alamos, New Mexico 87544 Lowenstein, Newman, Reis, Axel rad and Toll Michael Malmrosa Suite 1214 U. S. Nuclear Regulatory Commission 1025 Connecticut Avenue, N.W.
Trojan Nuclear P1 ant Washington, D. C.
20036 P. O. Box 0 Ra'aier, Oregon 97048 Mr. David B. McCoy 348 Hussey Lane Dr. Kenneth A. McCollom, Dean Grants Pass, Oregon 97526 Division of Engineering, Architecture and Technology Ms. C. Gail Parson Oklahoma State University 800 S.W. Green #6 Stillwater, Oklahoma 74074 Portland, Oregon 97526
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Mr. Charles Goodwin, Jr.
Portland General Electric Company dEP T Ef.'BER 3 8 1979 cc:
Mr. H. H. Phillips Mr. John A. Kullberg Portland General Electric Company Route One 121 S.W. Salmon Street Box 250Q Portland, Oregon 97204 Sauvie Island, Oregon 97231 Warren Hastings, Esquire Ms. Nina Bell Counsel for Portland General 728 S.E. 26th Street Electric Company Portland, Oregon 97214 121 S.W. Salmon Street Portland, Oregon 97204
~
Mr. Stephen M. Willingham
- 55. N. Tomahawk Drive Mr. Jack W. Lentsch, Manager Portland, Oregon 97217 Generation Licensing and Analysis Portland General Electric Company Mr. Eugene Rosolie 121 S.W. Salmon Street Coalition for Safe Powe.
Portland, Oregon 97204 215 S.E. 9th Avenue Portland, Oregon 97214 Columbia County Courthouse Law Library, Circuit Court Roca Richard M. Sandvik, Esquire St. Helens, Oregon 97501 Frank W. Ostrander, Jr.
Counsel for Oregon Dept. of Director, Oregon Department of Energy Energy Labor and Industries Building, Room 111 500 Pacific Building Salen, Oregon 97310 520 S.W. Yamhill Portland, Oregon 97204 Dr. Hugh D. Paxton 1220 41st. Street Maurice Axelrad, Esquire Los Alamos, New Mexico 87544 Lowenstein, Newman, Reis, Axelrad and Toll Michael Malmrose Suite 1214 U. S. Nuclear Regulatory Commission 1025 Connecticut Avenue, N.W.
Trojan Nuclear Plant Washington, D. C.
20036 P. O. Box 0 Rainier, Oregon 97048 Mr. David B. McCoy 348 Hussey Lane Dr. Kenneth A. McCollom, Dean Grant _s Pass, Oregon 97526 C ivision of Engineering, Architecture ar.d Technology Ms. C. Gail Parson Oklahoma State University 800 S.W. Green #6 Stil1 water, Oklahoma 74074 Portland, Oregon 97526
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Mr. Charles Goodwin, Jr.
HIE"5ER ' e 579 Portland General Electric Company cc: William Kinsey, Esquire Dr. W. Reed Johnson 1002 N.E. Holladay Atomic Safety and Licensing Appec Portland, Oregon 97232 Board U. S. Nuclear Regulatory Commiss' Ronald W. Johnson, Esquire Washington, D. C.
20555 Corporate Attorney Portland General Electric Company 121 S.W. Salmon Street Portland, Oregon 97204 Mr. Donald W. Godard, Supervisor Siting and Regulation Oregon Department of Energy Labor and Industries Building, Room 111 Salem, Oregon 97310 Robert M. Hunt, Chairman Board of County Commissioners Columbia County St. Helens, Oregon 97051 Marshall E. Miller, Esquire, Chairman Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Atomic Safety and Licensing Board Panel (5)
U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Docketing and Service Section (4)
Office of the Secretary U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Alan S. Rosenthal, Esquire Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr. John H. Buck Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555
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REQUEST FOR ADDITIO!ML INFORl;ATION TROJAN C0!4 TROL BUILDING MODIFICATIONS Verify that the installed Hexcel energy absorbing material will be 1.
" stabilized" in order to ensure the edge material is stabilized and a) therefore will absorb the anticipated amount of :nercy should it be crushed by a falling plate.
b)
"precrushed" in order to eliminate the peak load shown in Figure V-2 of Hexcel catalog #TSS-120 Previous responses have indicated, in response to the control of dust, grit 2.
and debris,that the work area may be isolated.
In this regard, the staff believes a small portable enclosure should be employed on the east and west inside walls 'of the control room and the electrical zuxiliaries room when This box shall be capable of containing and drilling holes in the walls.
collecting any dust, dirt, debris and water that may enter the room as the drill penetrates the wall.
Verify that such a small enclosure and collection means will be provided in order to preclude the release of this material inside the rooms.
Confirm that the required control room different.ial pressure requirements 3.
(Technical Specification 4.7.6.1.d.3) can be. continuously maintained with open drilled holes._in the control room wall.
Provide the basis for your conclusion.
Also, confirm that these requirements can be met durina installation of nlate R.
4.
The Trojan response of September 5,1979 to Systems Branch question 10 is confusing in that it speaks of areas external to Category 1 equipment.
The staff believes that a fire watch patrol should be established to perform hourly inspections for areas where a fire could affect safety related cables or equipment in which non-fire retardant wood will be used for concrete forms or other purposes.
The person while assigned as a fire watch patrol should have no other duties.
This fire watch patrol should be instituted when the non-fire retardant wood is taken into any of these areas and continue until it is removed.
The fire watch patrol would not be necessary during the times when a continuous fire watch has been established in an area for other reasons.
Identify each of the areas where such a fire watch patrol would be necessary to conitor for fires in areas where a fire could affect safety-related cables er ec.uipment.
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5.
In reference to the construction noise levels in the control room, response 18 to the staff's July 20, 1979 questions, you indicated that "Should it be detemined by the plant operator in the Control Room that excessive noise is being created, lighter weight tools or other near.s of concrete removal will be employed".
The staff believes it is essential that if either the
-NRC IE resident inspector or the plant operator should detemine that excessive construction noise is being created, lighter weicht tools or other means of concrete removal will be employed.
Verify that the above additional control on control room noise is acceptable and will be complied with.
Presently it is proposed to utilize a positive fee: control drill on the c.
east and west control building outer walls.
Further a person will be stationed on the inside for the purpose of detectinc when the wall has been penetrated and notifying the driller via radio conn.nications or by sound or battery powered telephones.
Describe and discuss any other additional measures that can.and will be implemented to further provide assurance the
' drill will not be allowed to penetrate to such an extent as to damage equipment within, e.g., positive stops or a paint strip on the core drill to alert the driller that wall penetration is inrninent.
7.
In reference to your September 5,1979 Structural Branch response number 4, it appears that a considerable amount of concrete is to be removed from the electrical ~ auxiliaries room floor along column line ' fin order to properly attach the added wall in the Control Builc..ig railroad bay to the existing structure.
With the aid of drawings, fully describe and discuss the following:
a)
The equipment that will be employed to remove the existing concrete shown in Figure 4-1.
b)
The equipment to be employed in drilling the 1-inch holes in the existing 12 inch thick precast floor slabs.
c)
The specific equipment that wi.11 be employed to preclude the spreading of dust, grit and debris generated during the above work, e.g., water sprays, evacuation fans, periodic clean ups and/or isolation of the work area by temporary barriers.
d)
Indicate the location and describe the safety-related functions of all electrical auxiliaries room equipment located within the area of influence of construction-generated vibratory motion,, vater, dust, grit and debris, e)
The reason why you conclude that the construction activities being carried out in this room will not inpair the operability of the permanent plan: equipment located in the electrical auxiliaries room.
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