ML19241B534

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Tx Utils Generating Co & Subsidiaries Supplemental Answer to NRC Initial Interrogatories.Affidavit,Certificate of Svc & Apps a & B Encl
ML19241B534
Person / Time
Site: South Texas, Comanche Peak  Luminant icon.png
Issue date: 05/25/1979
From: Knotts J, Sampels M, Scarth E
DEBEVOISE & LIBERMAN, TEXAS UTILITIES CO., WORSHAM, FORSYTHE, SAMPELS & WOOLRIDGE (FORMERLY
To:
References
NUDOCS 7907180879
Download: ML19241B534 (18)
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Text

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NRO pg3LIC DOGUMEEr m UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISS!ON BEFORE THE ATOMIC SAFETY AND LICENSING BOARD in the Matter of  :

HOUSTON LIGHTING & POWER  : NRC Docket Nos. 50-498A 3 COMPANY, PUBLIC SERVICE  : 50-499A p BOARD OF SAN ANTONIO, CITY OF  : D AUSTIN, CENTRAL POWER AND  : T0fl LIGHT COMPANY  : I R (South Texas Project, Unit Nos. . __ jug i 1978 P 1 cnd 2)  : 9- 7 TEXAS UTILITIES GENERATING  :

COMPANY, et al.  : NRC Docket Nos. 50-44SA E (Corncnche Peck Stecm Electric  : 50-446A 4 W Station, Units I cnd 2)  :

SUPPLEMENTAL ANSWER OF TEXAS UTILITIES COMPANY AND ITS SUBSIDIARIES TO THE NRC STAFPS INITIAL INTERROGATORIES COME NOW TEXAS UTILITIES COMPANY ("TU"), TEXAS UTILITIES GENERATING COMPANY ("TUGCO"), DALLAS POWER & LIGHT COMPANY

("DPL"), TEXAS ELECTRIC SERVICE COMPANY ("TESCO"), and TEXAS POWER

& LIGHT COMPANY ("TPL"), all collectively referred to os "TU Compcnies," in complicnce with Sections 2.740b and 2.741 of the Rules of Practice of the Nuclecr Regulatory Commission ("NRC") cnd in accordance with the order of the Bocrd, dated April 18, 1979, cnd mcke the following supplemental answers to the NRC Staff's Initial Interregatories numbered 1(d),1(e), 2, 3(e), 4(c), 6, 7(c), 8(d), 9(d),

15(b)-(d), 20(c)-(b), 27, 31(b), 33(c), 36-38, 40-4i(c), 41(e), 42-44, 47-49 cnd 50(c).

These enswers supplement cnd are not in lieu of cnswers previously filed in response to the NRC Staff's Interrogatories, cnd the TU Compcnies reserve the right to further supplement the cnswers cs the need therefor crises.

Attcched hereto is a list of documents, identified by Interrogctory number.

To the extent cdditienci rescensive documents cre discovered, such documents will be produced cnd similcrly identified.

SUPPLEMENTAL ANSWER l(d)-(e). All documents sought have been produced.

SUPPLEMENTAL ANS'NER 4(c). The voting percenteges for ecch of the T') Compcnies os provided in the ERCOT Agreement are os follows:

l] UoG mn-7 907180 hp

OPL 9?o TESCO 12%

TPL I4%

Ecch compcny controls its own voting power.

Each member of TIS has one vote. DPL, TESCO cnd TPL each controls its own vote. However, if Oting was done "in block, which it is not, the combined vote would be 3/12 or 25 2.

SUPPLEMENTAL A NSWER

5. Brownsville was admitted to TIS in April 1979.

SUPPLEMENTAL ANSWER 6(c). Prior to the recent difficulties of the CSW system with tSe Securities cnd Exchange Commission, TU was not awcre of any consideration b. _ given by any member system of TIS or ERCOT or any wholescle customer of the TU Compcnies to commencing interstate operation. To the knowledge of TU, all considerations by the CSW componies with respcct to interstate operation cre documented in the following proceedings:

1. Securities and Exchange Commission Administrative Procedure File No. 3-4951
2. Federal Energy Regulatory Commission (formerly FPC)
c. Docket No. E-9558
b. Docket No. E-9593
c. Docket No. E-9578
d. Docket No. E-9476
e. Docket No. EL 79-8
3. Public Utility Ccmmissicn of Texcs Docket No.14
4. "W est Texcs Utilities Compcny, et cl v. Texcs Electric Ser/ ice Compcny, et al No. CA-3-76-0633-F In the U. S. District Court for the Northern District of Texcs, Oclics Division See clso the TU Compcnies' original cnswer to Interrogatory 6(c) cnd cs supplemented below. See also the petition to intervene filed herein by Tex _La Cooperative, Inc. cnd petitions to intervene by various pcrties in FERC Occket EL 79-8. Occuments in connection with cny of the cbove proceedings will be made ovcilcble for inspection end copyir g at the Staff's convenience.

6(b). Reference is mcde to TU's answer to Depcrtment of Justice interrogetories Nos. I cnd 16 relcting to wholescle customers of TU.

, i, g9 y-6(c). B. B. Hulsey, Jr. TU W. G. Marquardt TESCO E. D. Scarth TESCO Wes Taylor TESCO R. R. Parks TUSI M. H. Tenner DPL John Robuck TPL (Retired)

G. R. Coffman TPL (Retired)

Gerson Berman TPL T. L. Hatcher TPL Louis Howcrd TPL Hal Hughes TPL George Becms TPL (Retired)

Si Holt TPL (Austin, Texas) 6(d). The TU Compcnies have participated in the various legal proceedings identified in Interrogatory No. 6(c) cbove in an effort to protect their interests.

Reference is also made to the TU Corrponies' answers to Department of Justice Interregatories Nos. 3 cnd 4, together with the documents therein identified.

SUPPLEMENTAL ANSWER 8(d). Additienci documents responsive to this Interrogatory cre attached or have been previously delivered to the Staff. See also the documents identified in response to interrogatory No. 27.

SUPPLEMENTAL ANSWER

15. The Icst sentence in the TU Compcnies' orig:ncI anser to Interrogatory No.15(c)-(c) is cmended to recd es follows: "The TU Compcnies have not declined to provide third pcrty wheeling for cny utility. To the extent that CSW's Mode 4 seeks to wheel power through the TU system, it hcs so declined. For a detailed explcnction regarding the TU Compcnies' relationship with CSW, see cnswers cnd supplemental cnswers to Depcrtment of Justice Interrogatories Nos. 3(c) and 4, together with the documents therein identified.

SUPPLEMENTAL ANSWER 20(c).Jehn B. Robuck, then Assistent Chief Engineer, TPL, now retired, who now resides at 1519 Matcgorde, DcIles, Texcs 75232, telepncne 214/371-2034. Mr.

Robuck hcd respcnsibility for working with HLP cnd GSU in this study cnd prescring the TPL portion of the study.

Ted L. Hatcher, Mcncger of System Engineering, TPL; business cddress: TPL, P. O. Box 6331, Oclics, Texcs 75222, telephcne 214/748-5411, Ext. 200; home

. cress: 2316 Olcbridge, Dalics, Texcs 75228, telephone 2!4/327-9127. M r.

Hatcher hcd responsibility for reviewing a draft of the repcrt.

, o r, 305 qia SUPPLEMENTAL ANSWER

27. The supporting technical studies for TU's long-rcnge transmission plcn are identified below. Copies of this mcterial have been previcosly delivered to the Staff:
1. Transmission Plcnning Mco, TUCS, dated 8/2/78
2. Bulk Power Trcnsmission Additions, 1978-1988, dcted 8/l/78
3. TUCS Ccpcbility, Demcnd cnd Reserve, 1979-1986, dated 4/;9/79 4 Texcs Utilities 345 Kv Voltage Study, dated 5/3/78
5. Norwood Auto Study,1979 Summer Peck
6. 1978 Locd Flow Cases, Mcrch cnd April 1977
7. l979 cnd 1980 Locd Flow Cases, March 1977
8. 1982 Locd Flow Ccses, April 1977
9. Study of 345 Kv Support of West Texas
10. Martin Lcke Stability Study, dated Mcy 1974
11. Monticello Stcbility Study, dated February 1974
12. Addendum to Monticello Stability Study, dated 1976
13. TIS Load Flow Study Report, dated March 1978
14. TIS Locd Flow Study Report, dated April 1979
15. Cemanche Peck Stability Study (See Interrogatory No. 40)
16. Allis-Chalmers Switching Studies of 345 Kv System, 01-8027-61076, Ceses87-163, October 1976
17. Switching Studies on the 345 Kv System, Allis-Chalmers, PST V511-028 A, December 19,1975
18. Switching Studies on the 345 Kv System, Ccse Data Packs, Volume 2, December 19,1975
19. Study of a 345/138 Kv Station in 1982 in Northern Ft. Worth, 3/16/7 8
20. Combined Study of 1980 Service to Hilldele (345 Kv vs.138 Kv) cnd 1982 345/128 Kv Autotransformer at Scginaw or Sherry
21. 1984 Bulk Power Trcnsmission System Study,9/14/73
22. TUCS 1984 Trcnsmission Pfcn,6/27/75
23. TESCO - Studies of Trcnsmission System Expcnsion, 1980-1989
24. TESCO - Studies of Trcnsmission System Expension, 1979-1988
25. TESCO - Trcr.smission System Expcnsion Sudy - Odessc Division, 1978-1987, June 1977
26. TESCO - Trcnsmission System Execnsion Study - 8,g Spring Divisien, 1978-1987 - June 1977
27. TESCO - Study of Trcnsmission Sysw i Expcnsion - Ecstlend Divisien, 1978-1987, Mcy 1977
28. TESCO - Study of Ft. Worth Arec Trcnsmission Requirements, 1978-1987 - June 1977
29. TESCO - Studies of Trensmission System Exocnsion, 1977-1986
30. Ccmpcrison of 345 Kv Autotrcnsformer Adc; tion Altematives - Felix Pcdille - 1983 - DPL
31. Compcrison of 345 Kv Autotre sfermer Addition Alternctives - 9/29/73
32. Texcs Utilities - Higher Trcnsmission Voltcge -

Engineering Study - Februcry 1961 A9r3 A-

33. Norwood Tie Study 6/74
34. Norwood Study - Ef. :t of Construction D-Icys - 1974 Summer Peck
35. Rebuilding Transmission Lines from Mt. Creek to Norwood -2/4/74
36. Norwood Switching Statien - 1974 Peck Lo-d - Octcber 197i
37. Prelimincry Report on hitcbility of Norwood cs en Autotrcnsformer Site - 1980 Conditions
38. Transmission Study - Norwraad cnd %cinity - 3/l7/7'i
39. Norwood Auto Study - 1979 Summer Peck - 3/22/78
40. 1990 Summu Peck Locding - Autotrcnsformers
41. Cedar Hill Mt. Creek - Ncrwcod Transmission Study - 6/4/74
42. Pcrker - b. Eagle - NW Canellten - 345 Kv Circuit Study -

8/24/78

43. Transmission Requirements - 1500 MW Coci Plant - W. Texas J/2/74

. . . Rens.er Studies - 6/27/74; 6/22/73; 11/12/73; 6/25/75; ?/2/76

45. Transient Stability - Monticello and Mcrtin Lcke - 3/7/7-
46. Study of Scndow TrcnsmisAn with Budget item 6L dated 10/27/78
47. Study of Seegoville Autotrcnsformer with B129, dated 10/28/77
48. Forest Grove Transmission - BI 43, dcted 10/28/74
49. Twin Oak Transmission - dat .7/27/74
50. Big Brown - Jewett Circuit #2 Studies
51. "New Autos et Heckberry & Norwood" cod related studies
52. TPL Proposed 6-Year Construction - 10/19/78
53. Venus 345/138 Kv Autotrcnsformer, with BI 620, dated 10/27/78
54. Shcmburger 345/138 Kv Autotransformer, with B1 560, dated 10/27/78
55. Mt. Enterprise - S.E. Nacogdoches 345 Kv Line - BI 630, dated 10/27/78
56. 1980 Lufkin - Nccogdoches crea - 5/10/79
57. 1980 Shermcn - Denison Area - 5/15/79
58. TlS Trcnsient Stcbility Study - 4/17/79 Other technical studies cnd re!cted dccuments have been run in the pcst but have been disecrded because of their bulk or cs new plcns cre developed.

SUPPLEMENTAL ANSWER 31(b). Additienci documents rescensive to this i nterrogatory have been previously delivered to the Staff.

SUPPLEMENTAL ANSWER 36(c)-(g). Documents responsive to this Interrogetcry Scve been previously delivered to the Staff.

36(h)-(j). For cost of transmission picnt by functional cccounts at yecr end, refer to FPC Form I, pages 401-403 cnd eel Uniform $!ctistical Repcrt, Schedules Vl!! cnd IX, previously provided.

y/J 36(k). Prior to the construction of cny trcnsmission line or the interconnection of such line with cnother, o detailed cnolysis is mcde to determine whether the installation of such trcnsmission line or interconnection will or mcy have en adverse impact on any other electric utility, including those directly interconnected by the interconnecting line. cnd extreme ccre is used by engineering personnel prior to the installation of cny '.rcnsmission line or interconnection line to avoid uny cdverse impact. Such documents constitute a part of the technical studies identified in Interrogatory No. 27.

36(1). TU is not cwcre of cny such instcnces. See cnswer to Interrogatory No.

15.

36(m)-(n). The cost of TIS cnd ERCOT studies are shcred as agreed. The cost of studies made by individucl systems wcs borne by those systems as cgreed.

Except to the extent provided in cnswer to Interrogatory No. 27, no such documents exist. Studies done in connection with prior long-range picns are discarded cs new plcns are dev2 loped.

36(o).There cre no known instances of existing interconne ons being opened because of an overlocd conditicn.

36(p).C+ hec then the cction icken by the TU Compcnies in response to the

" midnight wirim" on May 4,1976, the TU Componies know of no such instcnces.

!nterconnections Mve been opened from iime to time cutomatically cs c result of line interruptions from such ecuses os lightning, windstorm, torncdos cnd other similar recsons, cnd the interconnection hcs remained open until the affected lines were repaired. Interconnections have been mcnucily opened from time to time for planned outcges to perform construction or maintencnce. Daily dispatchers' logs record in detail cperation of the system, cnd dispotchers' logs cre cvoilcble for inspection cnd copying at the Staff's convenience.

SUPPLEMENTAL ANSWER 37(c). Transmission mcps of cil transmission lines of 110 Kv or grecter which TU picns to have by 1985 have been provided. To the extent that en X-Y coo dincte system mcy be avcilcble, reference is mcde to the grid system in the mcrgin of Mcp TE-9500. No other mcps responsive to this !nterrogctory cre ovcilcble.

37(b)-(c), (e)-(g). In en effort to coocerete with the Sicff, the TU Cemcenies hcve designcted the X-Y ccordinctes en FPC Fcrm 12, Schedule 188 for ecch line of 110 Kv or coove which the TU Compcniu picn to hcve by 1985, which hcs been previously delivered to the Staff.

37(d).Detes thct trcnsmission lines were first ecmmitted cre not recorded cnd thus cre not cvcilcbie. Info-motion with respect to the dates that ecch such line was eneigized is ref!ected en FPC Form 12F cttcched.

37(h).See the answer to Interrogctory No. 36(o) cbove.

37(i). Ocily dispctchers' logs record in detcil cperction of the system.

gut 103 Jv 3/ J

Dispatchers' logs are ovcilcble for inspection end copying at the Stof f's convenience. See the cnswer to Interrogatory No. 36(p) cbove.

SUPPLEMENTAL ANSWER

38. See the documents provided in response hereto.

SUPPLEMENTAL ANSWER

40. See the documents identified in answer to Interrogatory No. 27. Other load flow cnd stcbility studies have been run in the pcst but beccuse of their bulk were disccrded. To the extent that the case number, date, title, description cnd summcry cre known, such information is shown on the fcce of the documents supplied. The stcbility studies availcble end supplied do not include any unstcble CCses.

SUPPLEMENTAL ANSWFR 41(c). In addition to those persons previously ncmed:

OPL Roy R. Parks, Picnning Engineer, now with TUSI Lloyd O. Heizer, Picnning Engineer J. P. Bcrron, Mancger of Engineering, now retired R. J. Gcry, Vice President - Engineering, now Executive Vice President of TUGCO TESCO M. J. Pickett, Mcnager of Plcnning, nov retired C. W. McElree, Plcnning Engineer, now with TUFCO H. L. Mcnning, Plcnning Engineer L. F. Fiker, Mcneger of Enginaering, now with TUS!

E. D. Secr+h (then) Vice President- Engineering W. M. Tcylor (now) Vice President-- Engineering TPL Joe Jurlinc, Picnning Enginac.

Jchn S. Rebuck (then) Vice President - Engineering. now retired G. R. Cof fmen (later) Vice President - Engineering, now retired TMPA Kcm W, ng, in chcrge of Transmissien P!cnning ct the time; present of filiation unknown.

41(b). " Third pcrty studies" cru studies performed en computer fccilities of cn outside computing firm. These were pcid for on the bcsis of ownership in the picnt,

,o r 3 04 LL'/J which at the time was one-third by ecch TU cperating compcny. TMPA beccme en owner of a portien of the picnt offer the studies were completed af ter the transmission configuration had been estcblished. Consequently, TMPA did not pcrticipate in the transmission configuration. In cddition, ecch of the three TU cperating componies rcn some studies en its own in-house computer fccilities. The cost for these studies was paid for by the compcny running such studies.

Al(e). Locd flow studies have been performed from time to time on "in-house" computer fccilities cnd on computers et Utility Consulting Services (formerly University Computing Compcny). No known record exists specifying what type of computer wcs used to run which specific progrcms on cny pcrticulcr dcte.

SUPPLEMENTAL ANSWER

42. The latest load flow study (for the yecr 1983) was submitted in accordance with the Staff's request. This study is the first yect when the "Comenche Peck Units" will first be in comrnercial eperation. Input dato is submitted herewith, with X-Y coordinates to indicate location on Mcp TE-9500 submitted with Interrogatory No. 37. In cddition, the R a ' mcp wcs provided in response to Interrogatory No. 37. A legible copy of tb2 lotor pcelimincry load flow study has been previously delivered to the Staff.

SUPPLEMENTAL ANSWER 43(c)-(b). The plcnning of cn interconne ted trcnsmission grid is on importent factor in achieving system relicbility. The c6ition of generating units by member systems of the interconnected grid is cCally coordinated through various technical committees of TIS /ERCOT. The TU system constcnt!y tests the adequacy of its trcnsmission capcbility in light of generation cdditions, not only by its system but by other members of the inttconnected grid. Comenche Peck is simply one of mcny generation cdditions wich hcs been tcken into consideration in transmission design. The TU Compcnies end, they believe, every other mert.ber system of TIS /ERCOT never picn a trcnsmission system which would be knowingly cnd cdversely affected by the cddition of generating units, including the cddition of Comcoche Peck, either en the underlying volicge or in cny other respect. Since trcnsmission picnning is done on a long-term bcsis, normally 10 yects, bcsed upon enticipated locd growth in the service territories of the respective members of the interecnnected grid, cdequate trcnsmissien interconnecticns cre " built in" to the plcnning process. Trcnsmission systems es plcnned for the systems in light of expected cdditions to generation cre continuclly tested for relicbility. Therefere, there is not cnd should not be cny dcx uments requested by this interregctory other then the studies cnd cnclyses supplied in cnswer to interrogctory Nc. 27.

Auxilicry power for Com nche Peck is to be supplied by the TU Compcnies' de Cordove Substction cnd two 138 Kv lines were constructed te insure its availcbility: one between the de Cordeva Generating Station to the ce Cordova Substetien with switching equipment at h,+h lecctions cnd one from thu de Cordove Substetion to Comenche Peck.

SUPPLEMENTAL ANSWER

44. Allocation of the costs inquired cbcut in this Interrogatory will be mcde A95 3sir i ';

in proportion to ownership in the plcnt: OPL, 23.3%, TPL, 33.3%, TESCO, 33.3%,

TMPA, 6.2% cnd BEoC, 3.8% (if BEPC becomes en owr 4r as is presently enticipated.) Other then trcnsmission fccilities directly cttributcble to Comcnche Peck, that is, fccilities for the trcnsmission of power generated by Comenche Peck to be interconnected with fccilities existing at the time Comanche Peck commences operation, no such estimates have been prepared. See the cnswer to Interrogato ;es 43(c)-(b) cbove. Owners of Comanche Peck cs indiccted will shcre the cost of trcnsmission necesscry to interconnect Comanche Peck with the TU rystem in proportion to their owner: hip. The recson for the TU Compcnies' cnswers is that the transmission system of TIS /ERCOT bcs been planned in cnticipation of the expected locds cnd the generation therefor projected by their respective members. ERCOT/T!S wcs not picnned cnd hcs not been picnned for the purpose proposed by CSW; that is, to be used for mcssive wheeling of power from the northern portion of the CSW system to the southern portion. Documents responsive to this Interrogatorf hcve been previously delivered to the Statf.

SUPPLEMENTAL ANSWER

47. See the answer to Interrogatories 43(c)-(b) cbove. Trcnsmission cdditions never have en adverse effect on any electrL utility compcny unless the installation of such trcnsmission introduces either o new load on the interconnected grid or additional generation must flow over or through the transmission fccilities, whether added or existing. As stated in Interrogatories 43(c)-(b) obove, TU has planned and built its transmission fccilities within the planning concept of ERCOT/ TIS. While TU hcs mcde and pcrticipated in numerous studies to evclucte numerous transmission configurations, no transmission configuration has been cs economiccl or relicble cs the present intrcstate mode of operation. Therefore, none of the transmission additions with which TU is knowledgecble has imposed cn adverse impcet es would occur fronc.

(c) Messive wheeling through other systems; (b) Operating synchrcnously with rauch Icrger systems; (c) Rendering ineffective service relicbility equipment such cs underfrequency locd shedding relays; cr (d) Drcstically chcnging system ccercting procedures, normcl cnd emergency power flows, cecounting fer energy exencnges, frequency control cnd tirre correcticn precedures.

Consequently, TU is not knowledge 6le with instcnces in which cny electric utility hcs pcid cornpensatien to cnother electric utility due to the impcet of trcnsmissicn cdditions. Hcwever, TU believes no utility should hcve its system impceted er utilized by cnother utility without compensation. This philosophy is provided for in the recent energy bill.

SUPPLEMENTAL ANSWEP

48. In cddition to the TIS ope.ct:ng guide previously produced, the DPL n ;i R u; b\

_9

tcbulation of Transmission Line Ccpccity, dated 7/26/78, which contains various line ratings cnd which is used by the system operators, is provided. There cre no other cperating guides.

SUPPLEMENTAL ANSWER 49(c). Yes.

49(b).Verious other factors employed by TU's trcnsmission designers which cre in cddition to TIS design criteric include, but cre not limited to, the following:

1. maximum wind loading for design of trcnsmission structures
2. maximum ice leading for transmission design
3. shield angle of trcnsmission st.actures
4. mcximum pulling tension as a percent of conductor tensile strength
5. Initial cnd final sags over ope . country, buildings, roadways
6. depth, strength, size of transmission stmeture foundations
7. type of foundations
8. type of trcnsmission structures cad whether for verticci, horizontal, or delto circuit configuration
9. spccing between stmetures
10. mc:rimum ground impedcnce at transmission structures ll. insulation level for trcnsmission circuits
12. spccing betwe ..n subconductor spccers for 345 Kv circuits These considerations very from system to system, from compcny to company, from line to line and from structure to stmeture.

SUPPLEMENTAL ANSWER 50(c).TU believes the initial c. wer is complete.

q su r ,) ,\ L 41J

Respectfully submitted, Jos. Irion Worshcm, Esq.

M. D. Sampels, Esq.

Spencer C. Relyee, Esq.

WORSHAM, FORSYTHE & SA..tPELS 2001 Brycn Tower, Suite 2500 Oc:las, Texcs 75201 Joseph B. Knotts, Jr., Esq.

Nicholcs S. Reynolds, Esq.

DEBEVOISE & LIBERMAN 1200 Seventeenth Street, N. W.

Washington, D. C. 20036 ll'\l',lk'} .

r By llll ll' 1,

In G '-!f

/

ATTORNEYS FOR TEXAS UTILITIES COMPANY, TEXAS UTILITIES GENdRATING COMPANY, DALLAS POWER & LIGHT COMPANY, TEXAS ELECTRIC SERVICE COMPANY AND TEXAS POWER & LIGHT COMPANY

-l!- A s;I] ) I.

THE STATE OF TE:GS )

COUNTY OF TARRANT )

BEFORE ME, the undersigned authority, a Notary Public in and for Tarrant County, Texas, on this day personally appeared E. D. SCARTH, well known to me to be a credible person, iho after being by me first duly sworn, did depose and say that he is duly authori::ed to respond to the NRC Staf f's Ini_tial Interrogatories Propounded to Teras Utilities Generating Company on behalf of the TU Companies, has read the above and foregoing Supplemental Answers of the TU Companies to said Interrogatories from the NRC Staff, and the same are true and correct, to the best of his knowledge and belief.

/ h/ ., Y!.

E. D. SCARTH SUBSCRIBED AND SWORN TO before me this 25th day of May, 1979, to certify which witness by hand and seal of office, f

4W .L;$-

PAULA HDIAM , Notary Public in and for Tarrant County, Texas My Commission Expires:

December 27, 1930

<?

n, .n ~) y n)J

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMi(SAFETY AND LICENSING BOARD in the Mctter of  :

HOUSTON LIGHTING & POWER  : NRC Docket Nos. 50-498A COMPANY, PUBLIC SERVICE  : 50-499A BOARD OF SAN ANTONIO, CITY OF  :

AUSTIN, CENTRAL POWER AND  :

LIGHT COMPANY  :

(South Texas Project, Unit Nos.  :

I cnd 2)  :

TEXAS UTILITIES GENERATING  :

COMPANY, et cl.  : NRC Docket Nos. 50-445A (Comenche Peck Steam Electric  : 50-446A Station, Units 1 -nd 2)  :

CERTIFICATE OF SERVICE I hereby certify that service of the foregoing SUPPLEMENTAL ANSWER OF TEXAS UTILITIES COMPANY AND iTS SUBSIDIARIES TO THE NRC STAFPS INITIAL NTERROGATORIES has been mcde on the following parties listed hereto this 30 day of /h w, ,1979, by depositing copies thereof in the United States mail, first class,'podcge prepaid: .

MarshcIl E. Miller, Esq. (2 copies) Richcrd S. Sc!zmcn, Esq.

U. S. Nuclear Regulatory Commission U. S. Nuclear Regulctory Commission Washington, D. C. 20555 Washington, D. C. 20555 MicFeel L. Gicser, Esq. (2 ccpies) Jereme E. Shcrfmcn, Esq.

115017th Street, N. W. U. S. Nuclecr Reguictory Commission Wcshington, D. C. 20036 Washingten, D. C. 20555 Shelden J. Wolfe, Esq. (2 ccpias) Chese R. Stephens, Secretcry (20 cecies)

U. S. Nuclecr Reguictory Commission Decketing cnd Service Brcnch Wcshingten, D. C. 20555 U. S. Nuclecr Regulctory Commissien Wcshingten, D. C. 20555 Scmuel J. Chilk, Secretary Jerome Scitzmcn Office of the Secretary of the Commission Chief, Antitrust cnd Indemnity Group U. S. Nuclecr Requictory Commiuien U. S. Nuclecr Regulctory Ccmmission Wcshington, D. C. 20555 Wcshingren, D. C. 20555 Atemic Safety & Licensing Appeal Rcff Hcrdy Bocrd Penel Chairmen cnd Chief Executive Officer U. S. Nuclecr Regulatory Cornmission Central Power & Light Compcny Washington, D. C. 20555 P. O. Box 2121 Corpus Christi, Texcs 78403

-8 C hO C- bI U HiJ

Michcel I. Milier, Esq. G. K. Spruce, Richcrd E. Powell, Esc. General Mcnager Dcvid M. Stchi, Esq. City Public Service Bocrd Thomcs G. Rycn, Esq. P. O. Box 1771 isham, Lincoln & Becle Scn Antenio, Texcs 78203 One First Natienci Plczc Chiccgo, Illinois 60603 Roy P. Lessey, Esq. Jerry L. Hcrris, Esq.

Michcel Blume, Esq. City Attorney, U. S. Nuclecr Regulatory Commissien Richcrd C. Scicugh, Esc.

Washingten, D. C. 20555 Assistent City Attorney City of Austin R. L. Hcncock, Director P. O. Box 1088 City of Austin Electric Utility Depcrtment Austin, Texcs 70767 P. O. Box 1088 Austin, Texcs 78767 Robert C. McDicrmid, Esq. G. W. Oprec, Jr.

Spiegel cnd McDicrmid Executive Vice President 2600 Virginic Avenue, N. W. Houston Lighting & Power Company Washington, D. C. 20036 P. O. Box 1700 Houston,Texcs 77001 Den H. Ocv:dson Jon C. Wood, Esq.

City Mcncqer W. Roger Wilson, Esq.

City of Austin Matthews, Nowlin, Mccfarlene & Scrrett P. O. Box 1088 . 1500 Alamo Norienci Building Austin, Texcs 78767 Scn Antt.nio, Texas 78205 Joseph Gallo, Esq. Judith Hcrris, Esq.

Richcrd D. Cudchy, Esq. Energy Section Robert H. Loeffler, Esq. Antitrust Division Isham, Lincoln & Becle U. S. Depcrtment of Justice Suite 701,105017th Street, N. W. Wcshington, D. C. 20530 Washington, D. C. 20036 Dougics F. Jchn, Esc. R. Cerden Cecch. Esc.

Akin. Currp, Hcuer & Feld Jchn P. Mcthis, Esc.

!!CO Mccison Office Building Scker & Ectt; 1l5515tn Street, N. W. 1701 Pennsylvcnic Avenue, N. W.

Wcsh rgten, D. C. 20024 Wcshingten, D. C. 20006 Morgen Hunter, Esq. Rcoert Lowenstein, Esq.

McGinnis, Lochridge & Kilgere J. A. Bouknicht, Esq.

5th Flcer Willicm Frcnklin, Esq.

Texcs 5 tate Bcnk Buildirg Lowenstein, Newmcn, Reis & Axelred 900 Congress Avenue 1015 Connecticut Avenue, N. W.

Doncid M. Clements, Esq. Robert M. Rcder, Esq.

Gulf Stat ^s Utilities Compcny Conner, Mccre & Cerber P. O. Box .951 1747 Pennsylvcnic Avenue, N. W.

Becument, Texcs 77704 Wcshingten, D. C. 20006

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Austin, Texcs 78701 Washington, D. C. 20036 Jay M. Galt, Esq. E. W. Scrnett, Esq.

Looney, Nichols, Johnson & Hcyes Chcries G. Thrash, Jr., Esq.

219 Couch Drive J. Gregory Copelend, Esq.

Okichoma City, Oklchama 73101 Theodore F. Weiss, Jr., Esq.

Bcker & Botts Knoicnd J. Plucknett 3000 0,.e Shell Plaza Executive Director Houaien, Texcs 77002 Committee on Power for the Southwest, Inc. Linda L. Acker, Esq.

5541 East Skelly Drive Kevin 3. Pratt, Esq.

Tulsa, Okichoma 74135 Assistent Attorney General P. O. Box 12548 John W. Dcvidson, Esq. Ccpitol Station Scwtelle, Goode, Ocvidson & Tioilo Austin, Texas 78711 1100 Son Antonio Savings Building San Antonio, 'I exas 78205 Frederick H. Ritts, Esy.

Northcutt Ely W. S. Robson Watergate 600 Building General Mcnager Washington, D. C. 20037 South Texas Electric Cooperative, Inc.

Route 6, Building 102 Don R. Butler, Esq.

V'ctoria Regional Airport 1225 Southwest Tower Victoria, Texcs 77901 Austin, Texcs 78701 Joseph B. Knotts, Jr., Esq.

Nicholas S. Reynolds, Esq.

Debevoise & Libermcn 1200 Seventeenth Street, N. W.

Washington, D. C. 20036 /

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APPENDIX A INTERRCGATORIES 3(e). 4(f) cnd 9(d)

Federal Court Case Plaintiff's Exhibits 69; 127;136-138;163-169;182; 187; 742 TESCO Exhibits 58;148; 155; 205; 216; 239; 251; 262 Document Production Nos.

1229-1237; 4992-4999; 5052-5078; 5402-5411; 6095-6107; 6147-6157; 6236-6244; 7045-7049; 7096-7117; 9384-9393; 9395; 9397-9401; 9403-9407; 9419-9433; 9435-9441; 9456; 9472; 9517; 9531-9540; 10272-10277; 10637-10640; 10656-10658; 10662-10664; 10668-10747; 10749-10756; 11732; 11797-1:807; 12080-1209 5; 1209 7-12107; 12162-12163; 12168-12170 INTERROGATORY 6(e)

Document Production Nos.

540-551; 571-1127; 1382-1390; 1410-1698; 2061-2420; 5450-5459; 8097-8284; 8301-8375; 8914-9051;11024-11157 INTERROGATORY 7(c)

Federal Court Ccse Plaintiffs' Exhibits 120 TESCO Exhibits 6: 9; 69; 89-90; 297; 298; 325 Dccument P-cd;ction Ncs.

5878-5880; 7217-7219; 8806-8833; 8752-8754 INTERROGATORY 20(b)

Federal Court Cese Phintiffs' Exhibits 19, 24-25; 31-33; 35-36; 4!-42; 45-46; 48; 57; 61-62; 76; 129; 170-le , .74; 176;178-183;186-187; 759

/3 C)5 310

TESCO Exhibits 78; 94; 304 Document Production Ncs.

34-35; 44-48; 70-79; 86-95;1262; 1269-1284;1358-1375; 4787-4793; 4797-4801; 8723-8738; 8742-8748; 8759-8786; 8797-8799; 8801-8802; 8606; 10884; 10931-10932; ll202-11207; ll240-11247; 11250-11251; 11320-11323; 11341-11342;12030-12040 INTERROGATORY 3db)

Federal Court Ccse Plaintiffs' Exhibits 144;166 INTERROGATORIES 32(b) cnd 33(c)

Federal Court Ccse Plcintif fs' Exhibits 2-7; 9-10; 12-14; 17-18; 21; 26-27; 38-40; 43-44; 47; 49-55; 58-60; 62-63; 66-73; 75; 77-82; 84-85; 92-97; 100; 102-105; 108; 124-125; 134; 139-l40; 144; 155; 157-159; 161-166; 671; 673; 696; 719 TESCO Exhibits 2; 4A-L; 5; 95; 131; 135; 191-194; 229; 237; 241; 246; 253-254; 'M';

272-275; 278; 280; 285; 295-296; 304; 331 HLP Exhibits 68; 156 Documen t Droducticn Ncs.

191; 369-375: 378; 439; 554-570; 1278; 1304; 1350-1356; 1358-1375; 1507-1511; 4356-4357; 4372-4378; 4411; 4440; 4455-4457; 4459-4461; 4595; 4597-4598; 4644; 4647-4649; 4652-4676; 4693-4725; 4811-4824; 4828; 4840-4842; 4867-4870; 4899; 4921; 5079-5110; 6252-6258; 629 -

6301; 6307-6318; 6320-6327; 8739-8741; 8787-8795; 9918-1123; 9928-993!;

ll225-l!227; 11278; 11281-11290;11356-11358; 11455-11457; ll462-l!465; 11659-

!!661; 11668-11669; 11695-11707; 11808-11872; 11873-11889; !2041-12043; 12050-12056; 12354-12355; 12392-12426; 12434-i2444; 12447-12477;12483-12490 c.ir 710 J';

L4,.

APPENDIX B Citations to Transcriot in Federal Court Case INTERROG ATORIES 3(e),4(f) cnd 9(d) pp.1150; 1160; 1317-1321; 2771; 3456-3457 INTERROGATORY 7(c) pp. !!24-1125; 1176; i192-1195; 1206-1209; 1277-1280; 1286-1287; 1296; 1339-1442; 1355-1363;1375-1376;1410-1420;1424-1425;1427-1429; 3337-3338; 3458 INTERROGATORY 20(b) pp.1275; 1315-1316; 3251-3259; 3420-3437 INTERROGATORY 31(b) pp.1343-1345; 2755-2756; 2954-2956 INTERROGATORIES 32(b) cnd 3Xcl pp.1141; ll45; 1152-1156; l'89; 1223; 1206-1231; 1267-1272; 1307-1309; 1328-1338; 1349-1350; 1365-1371; l,a-1407; 1442; 2754-2755; 3262-3280

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