ML19344B382
| ML19344B382 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 02/01/1977 |
| From: | Abrell G COMMONWEALTH EDISON CO. |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19344B371 | List: |
| References | |
| NUDOCS 8010080738 | |
| Download: ML19344B382 (3) | |
Text
- - - - _ _ _
one First NF al Pina. Chicago. Ilknois
/-'
Addrass Resi to. Post Othee Box 767 Chicago, lihnois 60690 I) b February 1, 1977 Director of Nuclear Reactor Regulati.on D**]D *D l'
6 Attn Mr. Dennis L. Zicmann, Chief aam o 3
Operating Reactors - Dranch 2 Division of Cporating Roactors U.S. Nuclera-Regulatory Cosniscion Washington, D.C.
20555
Subject:
Dresden Station Unit 1 High Pressure Coolant Inject!on
_(HPCI) System, NRC Docket No. 50-10
Dear Mr. Zicmann:
This letter is in response to the 1ctter from Mr. Goller, dated August 5,1974, requesting a progress report every three months starting Hovember 5,1974 This is neport no. 10.
The construction of the HPCI system has not progressed sir.ce the last report because of the contaminated soil problem (sce previous report) and the very cold vcather.
We took ad-vantage of this unfortunate delay to do the design and drafting work needed to increase the cico of the building.
Only th',2ongth was increased in order to minimize the engineering and an. lysis time required to make the chango so as not to further delay the project.
The increase in size will accommodate the larger 'han expected vendor supp2. icd equipment and provido a reasonable amount of roact for operating and maintaining the system.
The projected date for the HPCI system operability is now l
Septemberr 1978.
This corresponds to the dato given in the pre-vious. report plus the three month delay discussed above.
The cost estimate for the HPCI system including engineering and escalation to the projected service dato in now $15,000,000.
Although we havo yet to receive approval of our design report, submitted on October,1975, we aro proce 3 ding with the procuremont of ' equipment.
The status of the vnr.ous ccnpononts of tho HPCI system is given in Tablo No. 1 (attached).
-Vory truly yours,
}
G. A. 7darell Nuclear Licensina horn 3dministrator Dolling bater Reac Attachment 80.10ogo7yp
~
Table No. 1 - Drerd:n Unit 1 HPCI Equipment Status.
' Item Status
'S'tructural. Work
' Contract awarded. Work in progress, Non-Destructive Testing--
Contract ~ awarded.
Piping and Installation New specification written and reviewed.
. Purchase awarded.
Spec, addendum for additional valves-written.
Large Valves 1
1!W Small Valves
(
Purchase-awarded and manufacture completed.- Spec, written for additional?va1Q 011 Storage Tank" Purchase awarded, spec addendum written.
}
Pumps Purchase awarded.
Motors
' Purchase requisition written, Water Storage Tank Purchase awarded, Main Control Room Panels Out-for bids, -(Addendum issued),
Local Instrument Racks Revised bids received and under evuluation, Diesel Gen. Service W ter Pumps Purchase requisition issued.
a
- ry 011 Day Tartks Purchase awarded, spec, addendum written Nbtor Control Centers Purchase awarded, 4160 V Switchgear Purchase awarded, 480 V Transformers Bids received and under evaluation DC Distribution Panels Revised bids received and under' evaluation, Ba tterie.~
Revised bids received and under evaluation.
Diesel Generators Purchace awarded.
s-1
=
-2.-
-Item.
Status c
~
Cables (.700V) -
Equipma.nt Requirement Schedule issued.
- t>1bles (.5KV)
Equipment Requirement Schedule issued,
' Battery Charger Revised bida received and under evaluation,
';{N; Cables. (Instrun;entation)
Equipment Requirement Schedule issued,
- Cable Trays Out for bids,
- Electrical Penetrati,on Assemblies Speciff eation' written, IIVAC V!ork Bids received and under evaluation, Vent Fans Purchase awarded.
d i g
e e
Y J
g
~
Comm:;nNocith Edison O
One First National Plaza. Chicejo, litinois C '7 AcerisiR'epty to: Po'sTCitice 'Bo'xT87
~
~
Chicago. Ilknois 60690 May 5, 1977 Mr. Donald K.-Davis, Acting' Chief n
Oparating Reactors - Branch 2 1R C0 ',N j
,b }
Division of operating maastors 0 3m 9 U U\\\\uWJub L
U.S.;Neelear Regulatory Commaission washington, DC ~
20555 subject
.Dresden station Unit 1 High Pressure Coolant Injection (HPCI) System 3Dtc Doaket No. 50-10 4
Referemos (a):
K. R. Geller letter to J. S. Abel, dated Augmat 5, 1974
Dear Mr. Davis:
This letter is in response to Reference (a) which requested a 7,copress report every three months starting Novensber 5, 1974.
This is report No. 11.
The cesi+mminated soil discussed in the two previous reports has been reectved allowing the construction of the EPCI building to proceed.
The building emaavatica is m 1=te including the E3CI pump pits, and the fill oonarete (sund mat) has been poured.
Current ocastruction activities include trenching for the suth doet run, putting in reinforcing steel for the floor, and rerouting axisting services (water, sir, fence, road, etc.).
The status of the various components of the HPCI system is given in Table No. 1 (attaahed).
A copy of the latest EPCI project schedule is attached for year inferination.
This schedule is based on information avail-able in February 1977.
The mahadule indicates the systaan will be i
operational on Decamber 31, 1978 We presently are on schedule for most.of the items, but are a month or two M 8ad on some of the more critical itaans.
It is not yet known if these specific d=11ays will have any impact en the project and date.
mecause the currently anticipated project sampletion is appecatinately one year later than granted in our ezemption, we plan to request an extenaien.
The Dresden 1 primary system =h==ta=1 a1===imy project has also-experienced delays.
It is currently expected that the in the fall of 1978 rather inally anticipated, c=
- n atly, DUPLICATE DOCUMENT for has and July of 1977.
Entire document previously l
entered into system under:
hh h
ANO No. of ages:
-. -.., _. - -. - -,. -, -. - - - - - -, -