ML18025A261

Letter Documenting Responses to Questions Given to Mr. Singh Bawa of the NRC from Pp&L'S Mr. E.D. Testa in Telephone Conversations on 1/17/1977 and 01/18/1977

ML18025A261
Person / Time
Site:	Susquehanna
Issue date:	01/19/1977
From:	Curtis N Pennsylvania Power & Light Co
To:	Regan W Office of Nuclear Reactor Regulation
References
Download: ML18025A261 (8)

Text

U.S. NUCLEAR REGULATORY " MISSION DOCKET NU N RC FoRM 195 I2-7G) s /s FILE N t4 NRC 'RIBUTION FoR PART 60 DOCKET MATERIAL DATE OF DOCUMENT Mr Regan Pa Power & Light Co 1-19-77 Allentown, Pa DATE RECEIVED N W Curtis 1-21-77 i5LETTE R .QNOTOR IZED PROP INPUT FORM NUMBER OF COPIES RECEIVED QfoR I G IN AL Q COP V INC LASS IF IE D one signed DESCRIPTION ENCLOSURE Ltr documenting responses to questions infor-mally transmitted in telephone conversations ACKNOW,~D -.q dtd 1-17-77 & 1-18-77 & concerning transmissio lines ~ ~ 0 ~ ~ ~ ~

DON'07 Rayon Susquehanna 1 & 2 SAFETY FOR ACTION/INFORMATION -77 e f ASSIGNED AD!

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NRC FORM 195 {2.76)

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TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONEME (215) 821-5151 Bicentennial O~

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$ 5o 8f Division of Reactor Regulation Environmental Projects Branch No. 3

>s,~AN U. S. Nuclear Regulatory Commission Washington, DC 20555,

~0 Attention: Mr. William H. Regan, Jr., Chz. f Re: Susquehanna Steam Electric Station Docket Nos. 50-387 Additional Information 50-388 ER 100450 File 991-2 PLA-159

Dear Mr. Regan:

This letter is to document the responses to the following questions which were given to your Mr. Singh Bajwa from our Mr. E. D. Testa in tele-phone conversations on 1/17/77 and 1/18/77:

1. What percentage of the Lackawanna-Jefferson 500KV Line occupies Forest Land, and how much is across open land?

Answer: A study was made of the area to be crossed by the Lacka-wanna to Jefferson Line, but an actual line route was not defined pending a decision to pursue this line. The study area included the Lackawanna County-Scranton area, the Pennsylvania-Pocono area and the Sussex County-New Jersey area. Since the exact route was not determined, the percentage of Forest and open land cannot be determined; however, the area is pre-dominantly wooded.

Approximately one-third of the line route would have paralleled an existing single circuit 230KV line and the remaining two-thirds would have established a new corridor. Approximately 18% of the study area is occupied by state owned Forest or Game lands.

The study area occupies land possessing significant scenic qualities and leisure activity potential.

The Lackawanna County-Scranton area is a diversified slow growth urban center which influences about 15% of the study area. The Pocono Mountain region is highly scenic and is undergoing rapid development as a second home and recreation area; the Pocono area comprised approximately 60% of the study area. Sussex County, New Jersey makes up the remaining 25%

of the study area. Agriculture is significant here, though the outstanding aspect is the increasing conversion of many summer homes to year round residences. This is due primarily to the high scenic quality and accessibility to metropolitan areas resulting from completion of the interstate highway system.

PENNSYLVANIA POWER 8 LIGHT COMPANY 670

TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONEs (215) 821-5151 Bicentennial hnsyltvania 1

Mr. W. H. Regan, Jr. January 19, 1977 There is the possibility that the route may have crossed the Delaware Water Gap National Recreational Area and the Tocks Island Reservoir.

2. Was consideration given to installing the Susquehanna-Siegfried Line on the same structures as the line being paralleled, where the line crosses the Appalachian Trail' Answer: The concept of installing the 500KV Susquehanna-Siegfried Line on the same structures as the paralled line where they cross the Appalachian Trail was not considered because the Trail follows the ridge of the Blue Mountain and placing the circuits on one set of structures would require triple circuit structures since the present structure contains two 230KV circuits. The triple circuit structures would be higher (approximately 180's 115'or a single circuit) and wider and would have dominated the horizon as viewed from the north and from much of the heavily populated Lehigh Valley to the south.

The Army Corps of Engineers requested a feasibility study of crossing the Beltzville Dam by double circuiting with the existing line; however, our study and report, which has been accepted by the Army Corps of Engineers, recommends the circuits be installed on separate structures.

The existing line will be rebuilt for double circuit 138KV operation in the near future.

From reliability point of view, in certain instances where transmission lines perform different electrical functions, it may be possible to consider placing three circuits on a single tower.

However, on the PPGL system the 500KV and 230KV transmission lines perform essentially the same bulk power electrical function, PPGL presently plans to cross the Appalachian Trail with the Susquehanna-Siegfried 500KV single circuit line on a common right of way with the East Palmerton-Siegfried 230KV double circuit line, Xt i,s highly undesirable to place these ciicuits on triple circui,t,structures 8It the trail crossing. All of these circuits are of'vital importjnce to structures the'ulk power system. The placement of*these ci.rcuits on tri.pie circuit would significantly increase the likelihood'of"a simultaneous triple circuit outage. Depending on the bulk power system condi,tions., such an outage cause extremely unfavorable results, From a transmission's reliabil~ 'ould ity point of view, it is highly undesirable to place these circui.ts on triple circuit structures.

PENNSYLVANIA POWER 8 LIGHT COMPANY

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TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONEs (215) 821-5151 Bicentennial If you have any further questions please contact us. Sss )mr dsiishrn can ssil sissir dsiwsrn.

Very truly yours, N. W. Curtis Vice President Engineering 6 Construction PENNSYLVANIA POWER 8, LIGHT COMPANY

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