ML20090L550

Requests Opinion of General Counsel W/Respect to Items of Work Re AEC Const Permit

ML20090L550
Person / Time
Site:	Monticello
Issue date:	01/27/1967
From:	David Nelson NORTHERN STATES POWER CO.
To:	Morris P US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 9102110387
Download: ML20090L550 (9)

Text

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O NOMTHERN STATES POWKM COMPANY  ;

die N4COLLEY AVE NUE M tN N E A POLIS, MIN N E S OTA 99 dot LA%V QEpeARTMENT '5 T ELEP.40N E 8 80-9 000 g 7']

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January 27, 1967 g '

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1. C; kg, j Dr. Peter A. Morris, Director Division of Reactor Licensing T

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SUBJECT:

Northern States Power Company Docket No. 50-263 _

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Dear Dr. Morris:

i Northern States Power Company has submitted an application to 4

) the Division of Reactor Licensing for a construction permit l and an operating license for a boiling water reactor power I plant which is to be constructed at Monticello, Minnesota.

Due to our urgent need to have available on schedule the power i which the Monticello Plant will produce, we propose to under-

! take certain work at the site in advance of the issuance of the AEC construction permit. For the most part, the work which we propose to perform is clearly permissible under the applic-

' able Commission regulations. The propriety of our carrying out certain other items of work prior to the issuance of the construction permit depends upon interpretation of the regula-tions. For that reason, pursuant to Sections 50.3 and 50.4, we are hereby requesting the opinion of the General Counsel with respect to those items of work.

The principal items of work which we propose to undertake are the excavation for the reactor and turbine buildings and com-menecment of construction of the latter. These activities are expressly authorized by subsections (b) (1) and (b)(3), respec-tively, of Section 50.10. As you can see on the attached drawing marked Exhibit A, the two buildings will be situated 9102110 670127 '

PDR ADOC 05000263 A

.PDR 354

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O O Dr. Peter A. Morris January 27, 1967 Page 2 adjacent to each other: the right-hand wall of the reactor building and the lef t-hand wall of the turbine building are separated by only a few inches. Following the excavation for the two buildings and start of erection of the turbine butiding, it is apparent that the earth underlying the left-hand wall of the turbine building will subside into the reactor-building excavation. As a result, the turbine-building wall will be inadequately supported unitis special measures are taken to hold the earth under the turbine build-ing in place during construction. The obvious solution lies in the ins tallation, prior to pouring the concrete for the turbine-building floor, of a segment of concrete adjacent to the ear'h bank as shown in blue on the attached drawing 1sbeled Exhibit B. Although the purpose of installing this oogment of concrete is to give support to the earth underly-ing the turbine building and to the turbine-building floor, it would ultimately be incorporated in the right-hand wall and the floor of the reactor building and, strictly speaking, in the language of Section 50.10(b) would be a " portion of -

the permanent facility on the site". It is that fact which has caused us to solicit the General Counsel's opinion con-corning the propriety of installing this segment of concrete prior to the issuance of the construction permit. There is an alternate approach which is clearly within subsection (b)

(3) of Section 50.10, namely, the installation of a concrete segment under the left-hand wall of the turbine building as shown in blue on the attached drawing marked Exhibit c. Such a segment of concrete would provide the necessary support for the erection of the turbine building, but it would serve no useful purpose following the erection of the reactor building inasmuch as the adjacent reacsor-building wall would provide '

all the support necessary for the carth underlying the turbine building. The cost of the concrete segment would be the same, approximately $30,000.00, whether it is installed as shown in Exhibit B or as shown in Exhibit C.

We recognize that a literal reading of Section 50.10(b) sug-gests that the preferred approach, as shown in Exhibit B, may not be permissible, but we do not believe that such a strict interpretation of the regulation which would result in sub-stantial economie waste is either necessary or appropriate.

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o 1 O Dr. Peter A. Morris January 27, 1967 Page 3 We propose, of course, to install the smallest segment of concrete, as shown in Exhibit B, that will provide the sup-port required for the turbine building during construction.

We fully appreciate that by installing it prior to the issuance of the construction permit we risk the economic loss which would result should we be denied a construction permits that possible loss is obviously preferable to the assured loss associated with installation of Wethe concrete believe the segment under the turbine-building wall.

preferred approach to be consistent with the law and the regulations.

In addition to the work described above, we propose to place for the in the reactor-building excavation the wooden a thin forms (approximately reactor-building floor and walls, 4"-6") concrete mud slab and the reinforcing steel for the Placing the wooden forms seems reactor-building floor.

cicarly within subparagraph (b) (1) of Section 50.10, which provides for preparation of the site for construction of the facility; the mud slab, the purpose of which is to provide is a

level, mud-f ree surf ace on which the workmen may work, likewise within the preparation-of-the-site-for-construction We believe that placing category of subparagraph (b) (1) .

the reinforcing steel in the excavation also comes under this category but, since it will ultimately become a portion of the permanent facility, it is possible to construe Section 50.10 in such a way that this activity would be considered We improper prior to issuance of t.he construction pennit.

j do not propose to install the steel in a permanent way but only to bend it as necessary and place it in its proper posi-tion in the excavation, securing it only by tying it to othar pieces of the reinforcing steel and not attaching it to the l walls or flonr of the excavation in any way. Although the 7

steel will become a part of the permanent f acility when con-crete is poured around it, it will not be permanently l

installed prior to the issuance of the construction permit--

it is the permanent installation that we believe the regula-l tions proscribe--and would be readily removable in the event that a construction permit were denied us.

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Dr. Peter A. Morris January 27, 1967 Page 4 We propose to commence work at the Monticello site at the earliest time that weather will permit and are hopeful that this will be on or about Narch 1. Accordingly, we would appreciate very much an early response with respect to the matters discussed above.

Very truly yours,

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/f G DONALD E. NELSON V. ice President and General Counsel l

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