ML20148A607
| ML20148A607 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 12/19/1978 |
| From: | Troffer G METROPOLITAN EDISON CO. |
| To: | Marrocco F PENNSYLVANIA, COMMONWEALTH OF |
| References | |
| GQL, NUDOCS 7812290129 | |
| Download: ML20148A607 (2) | |
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Frederick Marrocco Regional Sanitary Engineer Pa. Dept. of Environmental Resources 407 South Cameron Street Harrisburg, PA 17120 Oc.ir Mr. Marrocco:
Three Mile Island Nuclear Station (TMI)
MPDES Permit No. 0009920 Noncor:pliance Notifica tion No. 73-25 In acco-iance with Condition II.A.2 of the above referenced permit, endosed please find a Noacompliance Notification :o. 78-25.
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Frederick 'farrocco Regional Sanitary Engineer Pa. Dept. of Environ,1 ental Resources 407 South Cameron Street Harris'urg, PA 17120 o
I Dea r Mr. Star rocco:
l Three Mile Island Suelear Station (TMI)
M? DES Pe rmit No. 0009920 Nonconpliance Notification No. 73-25 In acec.-dance with Cor.dition II.A.2 cf the above referenced permit, a c lo:,c -! pleas e find a ':oncompliimce Notification 50. 78-25.
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ME~lHUPOLil AN EDISON COMPANY Po3T oF8 ICE BOX 542 RE.o!NG, PENNSYLVANI A 19003 TE LEPHONE 215 - 920 3601 December 21, 1978 GQL 2031 Director of Nuclear Reactor Regulation Attention:
Mr. R. 17. Reid, Chief Operating Reactors Branch No. h U.S. Nuclesr Regulatory Commission Washin6 on, D.C.
20555 t
Re: Three Mile Island Nuclear Station Unit 1 (TMI-1)
License No. DPR Docket No. 50-289 Small Break LOCA Long Term Solution
Dear Sir:
Your letter of December 5,1978 acknowledged our subnittal of November 21, 1978 concerning ou-proposed Long Ter Sclution to the Small Dreak LOCA Problem, and indicated that our proposei solution has been reviewed by the appropriate NRC Technical 3 ranches, and found acceptable.
? cur letter of December 5,1978 also indicated ths; additional information I
is required in order to justify inats.lling the proposed so ution for TIE-1 during the TC-11930 ref.eiing cutv,e (as proposed in our letter of November 21, 1973).
In order to obtain the justification necessa.ry to allow installa:ian of our propesed lens-ter solution, ycu requested that we address five ',5) specific questira.
Chec e o,uestiens and o'tr responses are
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Sincerely, Signed J. G. Herbelft J. G. Herbein Vice-President Generation JGI': RAL : d1:.
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Responces to URC Question Concerning Installation of Long-Ter:- So_.: icr. :: 3 mall Break LOCA Problem c;
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Restonsas to NRC Questions Concerning Installation of Long-Tern Solution to Small Breaks LOCA Problem i
bestien #1 Provice earliest date by which you could bs prepared to initiate implementation of the approved modifications at TMI-l assuming a routine schedule for design and procurement.
Restonse:
We have already taken steps which go beyond those taken for a j
" routine schedule for design and procurement." For example, we have pre-ordered the valves, piping and pipe fittings which vill be used in performing the modification. The long-lead time item for our schedule is the procurement of the Containment Penetration needed for moving the normal make-up injection point to a location inside containment. In order to expedite procurement of this penetration, we have gone beyond the " routine methods" by obtaining verbal quotations from several ranufacturers.
In spite of these efforts we cannot be prepared to f uitiate implementation of the approved modification at TMI-1 asstaing a " routine" schedule for design and procurement prior to October 8, 1979 f
Question #2 Provide as in 1 above assuming use of "special orders," and other measures as available to expedite preparations to the - 4 e extent possible.
Restonse:
In addition to the unusual methods already taken (as described in our response to #1 above), the other "special methods" which could be employed to expedite preparations vould be to justify one of the I
penetration manufacturers as a " sole-source supplier," and to delete the bid evaluation period. Taking these methods into consideration, the earliest possible date by which we are prepared to initiate implementation of the approved modification at TMI-1 is August 13, 1979 Question #3_
Provide the extra cost of the expedited schedule as compared to the routine schedule.
Restonse:
The additional cost of the expedited schedule as compared to the routine. schedule is $6k,600. This cost includes such things as material charges, expediting, and additional manhour costs (overtime).
Cuestion #h Provide the minimum duration outage necessary to implement the approved modification and perform the necessary testing.
Restonse:
The minimum duration outage necessary to implement the modification and perform the necessary testing is 30 days.
Included in this 30 day time frame'are the cool-down and heat-up times.
Also, this 30 day period includes time allocated for testing in the following areas:
A)
Hydrostatic testing B) Flov verification testing (h separate tests)
C)
Leak Rate _ testing D)
Penetration Pressurization testing
,6 L
Although a minimum of 30 days is required to perform the system modifications, if enough materials have been received on site prior to the 1979 TMI-l refueling outage, some of the.vork may be done during that outage. Therefore, it may be possible to accomplish as much as nine days of work on the system modification during the.1979 TMI-1 refueling outage. If this can be done, the minimum outage needed to install the modification could be re-duced to~21 days.
QUESTION #5 Provide the net increase in operating costs of an outage defined in h, above.
RESPONSE
The cost of the. capital improvement. is $2h7,000.
If this im-provement can be installed during the '1980 TMI-1 refueling outage, there vill be no additional increase in operating costs.
If, however, a special outage is required to install this modification, the net additional increase in operating costs vill lie between $8,674,600 and $12,364,600 as follovs:
O 30 Day Outage 21 Day Outage
-Replacement energy = $h10,000 day
$12,300,000
$8,610,000 (Includes Reduced. Capacity' Penalty)
-Costs of expedited schedule (as 64,600 6k,000 identified in #3 above)
TOTAL
$12,364,600
$8,67h,600 Based on the information presented above, we feel that using all available expediting methods, it 'is not possible to install the proposed modification I
prior to August'13, 1979 Because of the substantial financial penalty associated with performing the modifications' at some time other than a refueling outage, the (prudent) time for installing the modification is during the 1980 TMI-1 refueling outage.
' As indicated in' our response to Que stion #h, it is our intention to make every effort to install a portion cf the required modification during the TMI-1 #1979 refueling outage.
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