ML19249E495
| ML19249E495 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 06/07/1978 |
| From: | Crocker L Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19249E496 | List: |
| References | |
| NUDOCS 7910010596 | |
| Download: ML19249E495 (4) | |
Text
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50-416 50-\\l7 4
LICEllSEE:
!!ississippi Pcuer i Light Company Grand c lf, Units 1 and 2 FACILITY:
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SUBJECT:
SUWARY OF P.AY 31 - June 1,1970 TETING NID SITE VISIT On itay 31 - June 1,1973, we not with representatives of the Licensee at the Grand Gulf site to discuss the scheduling of construction and i
to observe the construction activities in progress. The visit was in connection with the activities of the HRC Forecast Panal.
The agenda for the treting is attached as Enclosure 1.
A list of attendees ar.d persons contacted during the visit is included as Enclosure 2.
Ue ret with representatives of the Licensee at the construction site
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an exit briefing ca the morning of June 1,1978.
The May issue of the Yellow Book (April figures) shows Unit 1 at 64, complete with an estimted fuel load date of October 1939. Unit 2 is listed as less than lf> complete with an estinated fuel load date of July 1983. The purpcase of t'le visit was to obtain a better fcel for the actual status of construction and the project sche ule to enabic d
the Forecast Panel to confirn the estinated fuel load dates.
Due to the construction status, the Panel rcnbers devoted their attention primarily to the Unit 1 and comon facilities.
The Licensee is one of the operating ccapanies of Middle South Utilities, Inc. (!iSU) a holding ccapany. Other operating subsidiaries of MSU include Arkansas Pos.or & Light Company (Arkansas I:uclear One, Units 1 and 2) and Louisiana Power & Light Coppany (Haterford, Unit 3).
The Grand Gulf Station is o..ned and is teing financed by liiddle South Energy, Inc. for IGU. The Licensee, !!ississippi Power a I.ight Company is the designated agent for design, construction, operation and rain-tenance of the plant.
The Licensee is a str.rer peaking utility. Approxinately 22% of the i
total annual productica is during the ranths of July and /tugust.
The i
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19 07 ( g JUN 7 1M peak dcnand grew at the rate of 9.8% per year during the period 1965 I
through 1973. The demand growth rate dropped during the 1974-1975 i
period, but it is predicted to grow at an average rate of 6.3% fro:n now through 1992. The reserve goal of !'SU is M%.
By the summer of l
1981, the peak denand within MSU is estimated to be 13,160; ??..'e. i Jith-j out '; rand Gulf I! nit 1 in comercial operation by that time, the system i
reserve would be only 15%. With Grand Gulf Unit 1, the systen reserve would be 24.9%, and the Licensee is aining at comercial operation by the sumer of 1931 to assure this reserve capacity.
Plant design is being handled by Ccchtel at the Gaithersburg office.
Approximately 300 people are involved.
Enphasis to date has focused on design of the Unit 1 cnd ccmon facilities and I would estinate the overall design completion of these facilities at about 35 - 907.
Enphasis of the design effort is nou starting to switch to Unit 2.
i' Procurtnent appears to be in good shape. About 95% of the civil-structural naterial is on site. The only najor ord9r still outstanding is the natorial for the enclosure building which is expected in September 1978. 95% of the electrical equipment and 98% of the nechanical equipment is on hand with the balance in both categories expected by l'oveober 1973.
No probicns are foreseen with availability of bulk natorials. The Licensee bas established a small pipe fabrica-tion shop in Vicksburg uhich has pmved to be a highly efficient means f
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e A tornado struck the site in April of 1973, inflicting considerable drage to the Unit I cooling tower, the Unit 1 containment and the switch-yard. A nain station transformer also was danaged and probably will have to be returned to the manufacturer for rcuork. The tornado caused the collapse of a construction crane insida the cooling tower. A large, wedge-shaped scgsent was torn out of the cooling tower vall.
Inspectors fron Europe are due to inspect the deaage and recorrend repair acasures.
No work on the touer is currently underway.
A large crane also fell across the top of the Unit 1 containment liner buckling the top of the liner. The danaged sections are being cut out and will be replaced with naterial from Unit 2 which is already on site. The containment done for Unit I had been scheduled to be lifted into place several days i
after the tornado. This done placement now is scheduled for September.
The suitchyard sust'ined etiensive damage due to debris and several construction trailers which were tu2 bled through the yard by the tornado. The tornada damage is not expected to inpact the overall schedule, although considerable effort is being applied to work around i
and ninimize the effacts of the dacage.
Some 91% of the concrc':e for Unit 1 and comon facilities now has been placed. About 75% of de lar<;e pipe is installed and about 33% of the smil pipe.
Ceale tray installation is at aboat 75%, with conduit at 1032.O
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j 29%, cable at 12% and terminations at about 2%. The construction force consists of about 3,500 people total. Of this number, about 2,500 are direct hire in various craf ts, 600 are non-nanual Cechtel people, and 400 are subcontractor people.
A considerable amount of t'te work such as the cooling towers, llVAC, turbine-generator erection, and painting is being subcontracted.
present construction efforts are on a two-shift basis witri littic scheduled overtime.
?!o labor problems are foreseen.
All construction efforts seem to be well in hand except for the electrical work. This effort currently is behind schedule and the Licensee has instituted a recovery progran to cet back on schedule. The problem is that the Licensee has experienced difficulty attracting a sufficient nuder of skilled electricians, and the turn-over rate has been on the order of 25% per nonth.
With the enphasis changing to nore and r ore electrical work in the couing renths, it aprears that this chronic shortage of electricians could have a considerable irm.ct on the Licensee's ability to naintain the construction schedule.
There row are about 120 people assigned to the operating staff who are j
in various stages of training.
About 25% of the cperatirig procedures have been written and about 40% of the startup procedures. All start-up procedures are available at least on a first draft basis. Technical procedures are 10% complete and radiation protection procedures are
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T' - Li : m e % r '; to se LS mectim staff for ":e sR dup tn t prg r m.
The sLrtup test schedule is just now being inte-grated with the construction schedule, which we see as a possible source of dalay to the project.
percentage completion status is calculated on the basis of ran-hours expended divided by the total nan-hours prograrred for the job. The t;tal effort allocated is revised periodically to take into account the productivity of labor, new or changed reoutrenents, etc.
The calculated coupletion rate has been running at about 1.4% per conth.
Scheduling is being done on the basis of a 66 month constructicn schedule which uculd call for being ready to load fuel by July 1980. This is considerei l
by the Licensee to be optimistic. Accordingly, efforts are reported based on a 70 conth schedule, which is core realistic and is where the October 1930 fuel load date cenes from.
If the Licensee can maintain the 1.4% per renth placement rate, the October 19S0 fuel load date is achievable. liowever, the known problens vith the lack of qualified electricians and the potential problem of conflicts between the actual construction schedule and the needs for the startup test progran Loth indicate a potential for a slip. Our view is that there is a potential total slip on the order of five to six nooths due prirurtly to these causes.
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i During our exit intervicw uith the Licensee, we indicated that in our j
best Judgacnt a fuel load date for Unit 1 of !! arch or April of 1981 would be core likely than the advertized date of October 1980.
L'e also indicated that our recomeadation uoald be to continue with the accept-ance review and docketing of the OL application.
L. P. Crocker Technical Assistant to the Director Division of Project Manans, ant
Enclosures:
1.
!!ote to Multiple Addressces frca L. Crockar 2.
Attendee list i
cc:
L. Dale,I' Pat K. McCoy,i;PSL V. Grounlee, RO II A. Abell W. Lovelace D BTRIEUTION:
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