ML20098G627

Forwards Responses to 840617 Request for Addl Info in Order to Complete Review of Facility Site Stabilization Plan.W/Two Oversize Maps.Aperture Cards Available in PDR

ML20098G627
Person / Time
Site:	Cherokee
Issue date:	09/27/1984
From:	Dail L DUKE POWER CO.
To:	Knighton G Office of Nuclear Reactor Regulation
References
NUDOCS 8410050236
Download: ML20098G627 (6)

Text

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DUKE POWER COMPANY ELECTHIC CE.VrER. Hox 33180, CHAHLorrE. N. C.

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- D1 1 ENGINEER NG September 27, 1984 Mr. George Knighton, Chief Licensing Branch No. 3 Division of Licensing U. S. Nuclear Regulatory Commission Washington, DC 20555 Re: Cherokee Nuclear Station Docket Nos. 50-491, 50-492, and 50-493 Files:

P81-1412.06, CK-1472.00 Enclosed are six (6) copies of our response to your June 14, 1984 request for additional information in order for you to complete your-revie9sof our Cherokee Site Stabilization Plan.

If yos.have any questions regarding this subraittal, please contact us.

Very truly.yours, L. C. Dail, Vice President

. Design Engineering JhM/pam Isnclosures

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r Question 1 Provide a site plan showing areas (including transmission corridors) disturbed by construction-related activities.

Identify the specific use of each disturbed area. Estimate acreage for each such disturbed area.

Response

All areas disturbed by construction-related activities are shown on Figure 1, " Areas Disturbed During Construction." Table 1 of this attachment provides a listing of each area, the area's intended and present uses, erosion controls implemented and the area's approximate acreage.

Question,_2 Identify on the site plan all structures. Indicate which structures will be removed and which will remain. Provide a schedule for removal of structures and describe the method of debris disposal.

Response

' Figure 2, " Existing Plant Structures and Construction Facilities," identifies all structures located en the site. All complete and partially complete

. structures (shown without cross-hatching on Figure 2) will remain on site in essentially their present conditions. Barriers'to prevent unauthorized entry have been erected around any structure which may pose a potential threat to the safety of the public or any Duke employee. Temporary or construction facilities (shown with cross-hatching on Figure 2) will be dismantled and removed as they are needed for other construction sites. Maintenance and storage'of these facilities in an erected position is more practical and economical than maintenance and storage of dismantled structures. Concrete slabs associated with dismantled structures will remain in place. All other debris will be buried in the construction landfill located on site.

Question 3 Describe the status of the site, with particular attention to disturbed areas and to related erosion and runoff control measures.

-Response All areas disturbed by construction-related activities have been stablized and no significant erosion or runoff problems exist. Small, isolated erosion problems are handled and eliminated by the site maintenance crew as they occur. All site runoff has been directed to holding ponds, where it is then discharged into the Broad River. Table 1 specifies the erosion controls Enplemented in each area of the site disturbed by construction related activities.

Question 4 Describe plans for future use of the site to the extent that such plans have influenced the selection of site restoration activity, if any.

Indicate the anticipated schedule for future use and describe how the future use influences the proposedrestoration work.

Response

Duke Power Company has decided that the Cherokee Nuclear Station site will

' not be retained as a power plant site. Beyond this, the future use of the

-site has not influenced site restoration activity.

. Question 5' Describe proposed restoration activities, if any, including procedures and schedules for grading, seeding, and planting which will be done to-

. leave the site in a stable condition.

Response

All' areas disturbed by construction-related activities have been stablized.

Areas excavated to rock were considered stable and did not receive any additional surface treatement.- Areas used for borrow or' spoil have been,

graded and seeded, as necessary, to prevent erosion and runoff problems.

All areas used for the storage'of construction materials have been graded and graveled. All site runoff has been directed to holding ponds, where it is then discharged into the Broad River. For the erosion control measures implemented for each specific area of the site, see Table 1.

Question 6

. Indicate what permits and approvals will be needed from other federal, state, or local agencies for any of the site restoration work.

Recponse The construction runoff and sanitary waste portions of the NPDES permit must be kept in effect until an adequate land cover has developed to prevent erosion and all personnel have left the site. The NDPES permit for these discharges is currently being renewed. No other permits are required for site restoration activities.

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Page 1 of 3 TABLE 1 INTENDED EROSION

APPROX, AREA No.

FACILITY USE PRESENT USE CONTROL STATUS ACREAGE

-1 NSW Dams, Pond and NSW Dams, Pond and II) Earth slopes-Spillway Spillway Grassed 214 (2) Rip-rap on Dam Slopes II NSW Cooling Towers NSW Cooling Towers and Graded; Earth Slopes 7

i and NSW Pump Struc-NSW Pump Structures Partially Grassed 3

ture Area III Unit 1 & 2 Cooling NONE Graded and Graveled 30 Tower Yard Slopes Grassed IV Powerhouse Yard NONE Grassed, Natural 13

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Growth V

Powerhouse Yard Borrow Area Graded, Grassed 7

VI Powerhouse Yard Motor Pool Graded and Graveled 6

VII Future Switchyard Borrow Area Graded and Grassed 22 VIII NONE Borrow Area Natural Growth 19 4

IX Main Switchyard Storage of Construction Graded and Graveled 17 Materials q

X NONE Construction Offices; Graded and Graveled 21

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Storage of Construction Materials, Parking Areas i

XI Powerhouse Yard Borrow Area; Powerhouse Earth Slopes Stabi-69 Yard lized; Unit 2 Reactor Bldg..Exca-vation to Rock 4

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Page 2 of.3 TABLE 1 INTENDED EROSION APPROX.

AREA No.

FACILITY USE PRESENT USE CONTROL STATUS ACREAGE XII Settling Ponds NONE Graded, Natural 17 Growth XIII Auxiliary Holding Borrow Area; Holding Pond (1)EarthSlopes Pond and Dams 13 Grassed & Rip-rapped (2) Rip-rap on Dam Slopes XIV Powerhouse Yard Construction Offices; Graded and Graveled 142 Storage of Construction Slopes Grassed Materials; Spoil Areas XV Unit 3 Cooling Tower NONE Graded and Graveled 11 4

Yard Slopes Grassed i

XVI Meteorological House NONE Graded and Graveled 1

Towers XVII Sedimentation Basin Borrow Areas; Access Road, Rip-rap on Dam 88 and Dams; Sewage Sedimentation Basin Dam Treatment Facilities Access Road i

XVIII NONE Borrow Area; Storagc of Graded and Graveled 7

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Constructio;. Materials i

i XIX NONE Borrow Area Natural Growth 7

XX NONE Storage of Constru: tion Graded and Graveled 13 Materials XXI NONE Storage of Construction Graded and Graveled 22 Materials

Page 3 of 3 TABLE 1 4

INTENDED EROSION APPROX.

AREA NO.

FACILITY USE PRESENT USE CONTROL STATUS ACREAGE l

XXII Transmission NONE Grassed, Natural 43 Corridor Cover XXIII NONE Storage of Construction Graded and Graveled 4

Materials XXIV Construction landfill Landfill Partially Graded, 12 Some Natural Cover XXV NONE Storage Yard Graded and Graveled 5

XXVI I Site Access Road, Site Access Road, Roads

' Graded and Graveled 13 Roads to Visitor to Visitor Overlook and Overlook and Micro-Microwave Tower l

wave Tower XXVII NONE Spoil Area Graded and Grassed; 15 4

Natural Growth XXVIII Site Perimeter Fence Site Perimeter Fence.

Grassed 23 i

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