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HomeMy WebLinkAboutNC0024406_Other Correspondence_20181022 DUKE 411 Fayetteville St., NC15 Raleigh,NC 27601 ENERGY® 919.546.2439 October 22, 2018 RECEIVED/DENR/DWR Ms. Julie Grzyb, Supervisor OCT 25 2018 NPDES Complex Wastewater Permitting NC DEQ/DWR/WQ Permitting Section Water Resources 1617 Mail Service Center Perm'tting Section Raleigh NC 27699-1617 RE: Belews Creek Steam Station, NPDES Permit NC0024406 Request for Designation as Closed-Cycle Recirculating System Dear Ms. Grzyb, This letter is to request that the Duke Energy Carolinas, LLC (Duke Energy) Belews Creek Steam Station (BCSS) be designated a closed cycle recirculating system (CCRS) pursuant to USEPA's Final Regulations to Establish Requirements for Cooling Water Intake Structures at Existing Facilities and Amend Requirements at Phase I Facilities, 79 Fed. Reg. 48,299 (Aug. 15, 2014) (codified at 40 CFR §§122 and 125) (the Cooling Water Intake Rule). The NPDES permit renewal application for this facility, submitted on August 30, 2016, is currently under review by the Department. Pursuant to 40 CFR § 125.95(a)(2), Duke Energy requested, and the Department established, an alternate schedule for the submission of application materials described in 40 CFR § 122.21(r). Until that information is submitted, the Department can, under the rule, establish interim BTA. A designation of BTA and identification of the BCSS system as a CCRS for the purpose of the current permit would allow Duke Energy additional time to complete certain studies already in progress and provide the Department with additional time to review entrainment and impingement at the facility. As set out in the preamble to the Cooling Water Intake Rule, when cooling systems involving impoundments meeting the definition of CCRS, the permitting authority can consider whether additional controls are warranted to protect against adverse impacts due to entrainment or impingement. 79 Fed. Reg. 48,348. To facilitate further review, Duke Energy will submit the application information required by the Cooling Water Intake Rule as set out in the alternate schedule in I(A.)(16.) of the June 29, 2018 Public Notice draft (a requirement that Duke Energy expects in final permit). DUKE �►, " ENERGY Ms. Julie Grzyb, Supervisor Oct. 19, 2018 Page 2 Cooling System Description The condenser cooling water (CCW) system at BOSS is a non-contact, CCRS that uses Belews Lake as a heat sink. Cooling water is withdrawn from the lower portion of the West Belews Creek arm of the reservoir, passes through the station to remove heat rejected from the condensers, and is discharged into the upper portion of the West Belews Creek arm of the lake. Heated water travels back to the Belews Creek arm of the lake via a connecting canal where it can be reused by BOSS. When BOSS is operating at full power, it has a design capacity to circulate 1,512 MGD from Belews Lake. Current maximum capacity of the Dan River make-up pumping station is 26 MGD. Taken together the facility has a design intake flow (DIF) of 1,538 MGD. A site overview is provided in Attachment 1. Belews Lake is a cooling reservoir completed in 1973 by Duke Power. The lake has a surface area of about 3,772 acres and a storage volume of approximately 181,664 acre-feet at full pool water level (725.0 feet). Water levels in the lake vary with a maximum flood water level at 735.0 feet and minimum drawdown level at 720.0 feet. Based on the mean annual lake discharge of 74.1 cfs, Belews Lake has a retention time of 1,236 days. In order for BOSS to withdraw cooling water, Belews Lake must be maintained at an elevation of 720 feet. In most years, the input from the surrounding watershed is sufficient to offset the output due to consumptive use, evaporation, and releases from the main dam, so no make-up water to the system is required. In years of drought, the station has the ability to pump make-up water from the Dan River into Belews Lake to maintain the lake level. This pumping has been carried out four times, in 2002, 2008, 2009, and 2010. In all of those cases, pumping was implemented according to temporary authorizations from the Department using a temporary pumping system. In 2009, the Department authorized the construction of a permanent pumping system, and operation of the permanent pump station and cooling water intake structure on the Dan River were authorized by the 2012 NPDES permit. Although it was built before the current Cooling Water Intake Rule was finalized, the Dan River intake complies with the rule and minimizes impingement and entrainment by having an approach velocity of less than or equal to 0.5 feet/second at the inlet of the velocity caps, and is equipped with a fish return system and 2mm fine mesh traveling screens. Basis for Designation as a CCRS A "closed-cycle recirculating system" is defined at 40 CFR 125.92 (c). The definition addresses facilities with CCRS that withdraw from waters of the United States where the impoundment was constructed for the purpose of providing cooling water for the facility: Closed-cycle recirculating system also includes a system with impoundments of waters of the U.S. where the impoundment was constructed prior to October 14, 2014 and created for the purpose of serving as part of the cooling water system as documented in the project purpose statement for any required Clean Water Act section 404 permit obtained to construct the impoundment. In the case of an impoundment whose construction pre-dated the CWA requirement to obtain a section 404 permit, documentation of the project's purpose must be demonstrated to the satisfaction of the Director. This documentation could be DUKE ENERGY, Ms. Julie Grzyb, Supervisor Oct. 19, 2018 Page 3 some other license or permit obtained to lawfully construct the impoundment for the purposes of a cooling water system, or other such evidence as the Director finds necessary. 40 CFR 125.92 (c)(2). Impoundments are further defined and discussed as a closed-cycle cooling system in the rule's preamble, stating that: Impoundments are surface waterbodies that serve as both a source of cooling water and a heat sink. As with cooling towers, impoundments rely on evaporative cooling to dissipate the waste heat; a facility withdraws water from one part of the impoundment and then discharges the heated effluent back to the impoundment, usually in another location to allow the heated water time to cool. Depending on local hydrology, impoundments may also require makeup water from another waterbody. Impoundments can be man-made or natural, and can be offset from other water bodies or as part of a "run of the river" system (the latter are sometimes referred to as cooling lakes). 79 Fed. Reg. 48,334 (August 15, 2014) The system at BOSS meets the criteria for classification as a CORS. The BOSS withdraws cooling water from Belews Lake which was constructed in a water of the United States for the purpose of providing cooling water for the Duke Power Company (now Duke Carolinas, LLC) BOSS prior to the Clean Water Act 404 permitting program. As demonstrated in the attached documents, the Duke Power Company received authorization for the creation of Belews Lake in February 1970 for the Belews Creek Steam Station. Several references, including those listed below provided as attachments to this letter, contain numerous statements and commensurate justification that the purpose of Belews Lake was to be "operated for the recirculation . . . of cooling water" and is a "cooling lake": • State of North Carolina Department of Water and Air Resources Permit No. 1752 • North Carolina State Board of Health Permit issued January 21, 1970 • North Carolina Board of Water and Air Resources Order dated March 27, 1970 • Pollution Control Committee, Board of Water and Air Resources Public Hearing January 28, 1970 • Duke Power Company Belews Creek Steam Station Engineering Report dated November 17, 1969 • State of North Carolina Utilities Commission Order dated July 15, 1969 The permit issued by the State of North Carolina Department of Water and Air Resources (the predecessor Agency to the North Carolina Department of Environmental Quality) authorized "construction of a 3,863 acre cooling lake on Belews Creek for the recirculation of 1.63 billion gallons of cooling water per day through a 2,286 mega watt steam electric station." Furthermore, the North Carolina Board of Water and Air Resources Order provided a thermal variance "for a proposed cooling lake impounded by a proposed dam in Stokes County." The DUKE ENERGY, Ms. Julie Grzyb, Supervisor Oct. 19, 2018 Page 4 dam was built in 1970, and the lake reached full pool in 1973, although it was substantially full by 1971, as reflected in the attached USGS topo map. As also required by the definition, make-up water withdrawals attributable specifically to the cooling portion of the BOSS cooling system have been minimized. As described above, the transfer of make-up water from the Dan River in times of drought is authorized by the NPDES permit. As an initial point, make-up water has not been pumped from the Dan River since 2010, so the system has operated for the last eight years with zero withdrawals. Duke Energy expects this to continue for the duration of the next permit term. Further, permit conditions minimize the withdrawal of make-up water from the Dan River by requiring that pumping not lower the flow in the river below 110 cfs, requiring that pumping be stopped when Belews Lake reaches 724.5 feet, and requiring that pumping not take place from April 1 through June 30. Cooling water use by the station is also minimized by operating fewer pumps during cooler months and during periods of reduced electric demand. Such reductions can be substantial in each year (e.g., 53% of the annual pump capacity was used in 2003 while 79% was used in 2002 to 2007). While these reductions are significant, BOSS must respond to demand for electricity and it is not possible to commit to any specific reduction in pumping at the lake. Consistent with the purpose of its creation as a CORS and the fact a little make-up flow to the CCRS is necessary, make-up water withdrawals to the CCRS attributed specifically to the cooling portion of the cooling system have been minimized. If there are any questions or additional information is necessary, please contact Joyce Dishmon at Joyce.Dishmon@duke-energy.com or 336-623-0238. Duke Energy appreciates your assistance with this matter. Sincerely, E. Shannon Langley Principal Environmental Specialist Enclosures Cc: Reginald Anderson — Station manager (w/attachments) Brenda Johnson (w/attachments) - via email Joyce Dishmon/FileNet (w/attachments) - via email Stephen Conner (w/attachments) - via email Richard Baker (w/attachments) - via email Michael Smallwood (w/attachments) - via email State of North Carolina Department of Water and Air Resources Permit 1752 Attachment 1—Belews Creek Steam Station Cooling Water System Site Overview , If f K �Mv ♦`hjji Yon i jt R 'S Belews Creek dower Station Approximate flow path in Belews Lake Cooling water ,:, discharge , Belews Lake toil! . intake ' a : , ii-, Y 5` 9 i n Google STATE OF NORTH CAROLINA DEPARTMENT OF WATER AND AIR RESOURCES ROBERT W. SCOTT 5, VERNON STEVENS. JR. GOVIRKOR „;;Plat*, M CHAIRAN P, D. DAVIS y��AS 'uy � P. GREER JOHNSON J. NELSON GIBSON. JR. 7`, VICR-CHAIRMAN WAYNE MABRY as1�}�i N HUGH L. MERRITT F� •i RAYMOND S. TALTON LEE L. POWERS JOSEPH E. THOMAS J. AARON PREVOST y ' GLENN M. TUCKER W. GRADY STEVENS H. W. WHITLEY GEORGE E. PICKETY, DIRRCTOR IN REPLYING REFER TO: TR«.HOHR 525.3003 WP7OCAW E.C. HUBBARD. Aur. DIRccroq TRUPHONE 525.200* RALEIGH. N. C. 27011 P. O. Vox 27045 February 12, 1970 Mr. W. S. Lee, Vice-President Engineering Department Duke Power Company P. 0. Box 2178 Charlotte, North Carolina 28201 SUBJECT: Permit No. 1752 Duke Power Company Belews Creek Steam Station Stokes County Dear Mr. Lee: In accordance with your application dated November 17, 1969, we are forward- ing herewith Permit No. 1752, dated February 12, 1970, to Duke Power Company for Belews Creek Steam Station, Stokes County, for the construction of a 3,863 acre cooling lake on Belews Creek operated for the recirculation of 1.63 billion gallons of cooling water per day through a 2,286 mega watt steam electric generating station, and the discharge of the overflow into Belews Creek, a tributary to Can River in the Roanoke River Basin. This permit shall be effective from the date of its issuance until December 31, 1979, and is subject to the conditions and limitations as specified therein. Also enclosed is a copy of WFC Form 50 "Cost of Wastewater Treatment Works." This form is to be completed and returned to this office within thirty (30) days after the project is completed. One (1) set of the approved plans is being returned to you. Sincerely yours, ubbard Assistant Director Enclosures cc: Mr. Charles Dewey Mr. L. P. Benton, Jr. NORTH CAROLINA BOARD OF WATER AND AIR RESOURCES RALEIGH PERMIT For the Discharge of Sewage, Industrial Wastes, or Other Wastes In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules and Regulations, PERMISSION IS HEREBY GRANTED TO Duke Power Company Belews Creek Steam Station Stokes County FOR THE construction of a 3,863 acre cooling lake on Belews Creek operated for the recirculation of 1.63 billion gallons of cooling water per day through a 2,286 mega watt steam electric generating station, and the discharge of the overflow into Belews Creek, a tributary to Dan River in the Roanoke River Basin, in accordance with the application dated .... . November 17 19 69 and in conformity with the plans, specifications, and other supporting data, all of which are filed with the Department of Water and Air Resources and are considered a part of this Permit. This Permit shall be effective from the date of its issuance until ,December 31, 1979 , and shall be subject to the following specified conditions and limitations: 1. This permit shall become void unless the facilities are constructed in accor- dance with the approved plans, specifications, and other supporting data and are completed and placed in operation on or before May 1, 1974, or as this date may be amended by the Board of Water and Air Resources. 2. This permit is effective only with respect to the nature and volume of cooling water as described in the application and other supporting data furnished by the applicant for this steam electric generating station. 3. The cooling lake and all necessary facilities shall be properly maintained and operated at all times to comply with the assigned water quality standards or any variance from such standards as may be approved by the Board of Water and Air Resources. 4. The discharge from the cooling lake shall not be less than 10.0 cfs at any time and shall be of such quality as to protect the water quality standards assigned to Belews Creek below the dam. 5. The Company, at least six months prior to the expiration of this permit, shall request its extension. Upon receipt of the request, the Board will review the adequacy of the facilities described herein and, if indicated, will extend the permit for such period of time and under such conditions and limitations as deemed proper. Permit issued this the ,. I,21b day of Febxvati _.. , 19 70 By .& 4*. E. C. Hubbard, Assistant Director Permit No. 1752 Department of Water and Air Resources NORTH CAROLINA BOARD OF WATER AND AIR RESOURCES RALEIGH APPLICATION FOR THE APPROVAL OF PLANS AND SPECIFICATIONS FOR WASTEWATER COLLECTION AND/OR TREATMENT FACILITIES AND THE ISSUANCE OF "CO c'dOX CXSI1(XdrOD(ial}t24X%t)XX( "PERMIT" FOR THE DISCHARGE OF TREATED SEWAGE, INDUSTRIAL WASTES OR OTHER WASTES INTO THE WATERS OF THE STATE Filed By: Duke Power Company ( N-°'•) APPROVED Box 2178 (Addy*..) NORTH CAROLINA BOARD Charlotte, N. C. 28201 OF WATER AND AIR RESOURCES Date 19 12-- Cert. or Permit.No.. .;,L. 1. WPC No. 1-5144-1-68 November 7, 18 69 TO: North Carolina Board of Water and Air Resources Raleigh, North Carolina Gentlemen: In accordance with the provisions of Article 21 of Chapter 143. General Statutes of North Carolina as amend- ed, application is hereby made by Duke Power Company (Name of board, individual or others) of the Charlotte (Name of city,village.,town, sanitary district or establishment) in the COUnty of Mecklenburg , to the North Carolina Board of Water and Air Resources for the approval (Name of county) of the accompanying plans, specifications, and other data submitted herewith covering the construction of a 3863 acre cooling lake to serve a 2286 mw fossil-fired electric generating station in Stokes County (See Engineering Report, revised November 17, 1969, attached) and for a 'SOratt4lttststkptsaaKxjr<x "Permit" for the discharge of warm wafer sewage, from the condensers industrial waste or other wastes) (sowers or treatment plant) serving The Belays Creek Steam Station into (Name of municipality,institution, or Industry,etc.) (Name of treatment plant) or surface waters of cool incl lake impounded by (surface or ground waters) (Nome of water course If surface a darn on Belews Creek waters; a ground watrota, state water course to winch may gra tributary) N 938,300; E 1, 698,700 N C Grid Coordinates (Exact location of point of discharge) The plans for the proposed works have been prepared by Duke Power Company (Engtnroertng Firm) of Charlotte, N. C. . It is estimated that treatment works will provide (Address) adequate capacity to serve the Belews Creek Steam Station for a period of 30 years. at which time it is estimated the average daily sewage or waste flow will not exceedl .6 bill i ongalions. It is further expected that the treatment works will effect overall reductions in pollution as follows: B.O.D. (5-day 20°C NA %, suspendesirkolids NA %. total .lidas. NA coliform bacteria MA 5), and toxic materials • . tlA %. The cost of the prop ndriaa�ucQ;�ct kestimated to be; sewers c NA , pumping stations $ NA , treatment plant S NA , others $ l6,,000,QQQ_. The works will be completed and in operation on or before May 1 , iaLk * 18°F Water Temperature Reduction NA = Not Applicable The applicant hereby agrees that the proposed works will be constructed in strict accordance with the ap- proved plans and specifications or subsequently approved changes therein and further agrees to place its opera- tion under the care of a competent person and to maintain and operate the plant according to the best accepted practice and in accordance with the plans and specifications approved by the Board. Signature W. S. Lee Title. Vice President, Engineering Duke Power Company Mailing Address Box 2178 Charlotte, N. C. 28201 �. • Specify percentage reduction for roach toxic substance, using additional sheet. if necessary. Instructions for Preparation of Application for Approval of Plans and issuance of "Certificate of Approval"or"Permit" 1, Application must be made in duplicate on this form. Failure to do so, or to fill in completely all blank spaces and furnish all information required will delay the examination and approval of the plans and the issuance of a "Certificate of Approval" or "Permit". 2. The application must be signed by the Mayor or City Manager of a municipality, the Chairman of a sanitary district board, the owner or proper officials of a corporation, or the legally constituted board or commission having charge of the proposed works. The signature of the designing engineer or other agent will be accepted only if accompanied by a letter of authorization. 3. Plans, specifications and other supporting data must be submitted in duplicate In accordance with the Rules and Regulations of the North Carolina Board of Water and Air Resources regarding the preparation and submission of same. • 4. The Water Pollution Control Division will expedite the study and review of all applications and plans relating to-proposed pollution abatement projects as rapidly as possible; however, the applicant should allow a period of at least 30 days for such study and review after ail documents have been furnished, The applicant nuvviclatllu awl receiv- ing bids, awarding contracts and beginning construction of the proposed works. 5. All applications, plans, specifications, and other supporting documents should be addressed to; . Water Pollution Control Division Department of Water and Air Resources r P. 0. Box 9392 Raleigh, North Carolina 27603 A . v, ,7," H I • , SURVEY SHEET COST OF WASTEWATER TREATMENT WORKS DEPARTMENT OF WATER AND AIR RESOURCES Post Office Box 9392 Raleigh, North Carolina Project Duke Power Company, Belews Creek Steam Station, Stokes County (Name and Location) Grant No. Permit No. 1752 Date Permit Issued 2- LID Date of Completion Design Engineer A. DESCRIPTION; (1) Type of Plant (2) Design Capacity P.E. Avg. Flow (MGD) B. CONSTRUCTION COSTS: (all contracts) (1) Treatment Facilities $ (2) Interceptors, Outfalls & Lift Stations (3) Collection Sewers Subtotal $ C. OTHER COSTS: (1) Technical Services (2) Legal and Fiscal (3) Administrative (4) Contingency (5) Plant Site and Rights-of-Way 9 Y (6) Miscellaneous Subtotal $ Total (all costs) $ D. General Contractor E. Date Project Completed F. Data Furnished By (Name and Title) G. Data Obtained By Date WPC #5d 8-1-68 North Carolina State Board of Health Permit issued January 21, 1970 • . NORTH CAROLINA JACOB KOOMEN M D. M.P.H STATE BOARD OF HEALTH STATS Y1.L'w r”.(c ro• AND ...(A1P O BOX 2091 W BURNS JONES, JR., M.D M.D . M H. RALEIGH. NORTH CAROLINA 27602 ASSISTANT{TAT(N(ALTN OtOtCTOR November 18, 1971 Stokes Rockingham (Pond No. 1'irsc• County Forsyth ) Guil.Yord Duke Power Company General Offices 422 South Church Street Charlotte, North Carolina 28201 Dear Sir:: Enclosed is your "Permit for Impounding and Mainte- nance of Impounded Water," Very truly yours, Sidney H. Chief Insect and, Rodent Control Section Sanitary Engineering Division Enclosure CC: Local Health Department Soil Conservationist I MEMBERS OF STATE BOARD 1MES S RAPER M D PRESIDENT ASHEVILLE BEN W. OAWSEY. 0.V M GASTONIA PAUL P. MANESS. M 0 BURLINGTON ENOX D BAKER N 0 VICE PRESIDENT DURHAM JOSEPH S HIATT JR , M D SOUTHERN PINES ERNEST A. RANDLEMAN JR B 5 PH MOUNT AIRY P CLINE. SR , 0 0 S—CANTON J M. LACKEY—HIDAENITE HOWARD PAUL STEIGER. M 0 CHARLOTTE Pond No. MISCELLANEOUS North Carolina State Board of Health Sanitary Engineering Division Raleigh, North Carolina PERMIT FOR IMPOUNDING AND MAINTENANCE OF IMPOUNDED WATER Issued to: • Name Duke Power Company, General Offices Address 422 South Church Street, Charlotte, North Carolina 28201 The construction of an impounded water project, described in an ap- lication for a permit to impound water dated Janu,ry 21 , 19 70 , having been completed in accordance with the requirements of the N. C. State Board of Health, this permit for impounding and maintenance of impounded water is issued this 18th day of November , 19 71 . Section P. of Regulation No. 32 of the Regulations of the N. C. State Board of Health Governing the G4ntrol of Communicable Diseases, a copy of which is attached and forms a part of this permit, shall be ob- served except provisions thereof as may be specifically waived in writ- ing. This permit shall remain in force so long as the holders thereof maintain the impounded water in a condition which does not render it a menace to the public health. Jacob Koomen, M.D., M.P.H. State Health Director BY ..! �i�l. _. l (Z.1/ Sidneyff. Usry, Ch ef, Insect and Rodent Control Section Sanitary Engineering Division North Carolina Board of Water and Air Resources Order - March 27, 1970 ee NORTH CAROLINA BEFORE THE NORTH CAROLINA BOARD OF RATER AND AIR WAKE COUNTY RESOURCES IN THE MATTER OF: THE APPLICATION FILED BY DUKE) POWER COMPANY OF CHARLOTTE, ) NORTH CAROLINA, REQUESTING A ) VARIANCE FROM THE TEMPERATURE) SPECIAL ORDER STANDARD APPLICABLE TO THE ) CLASSIFICATIONS ASSIGNED TO ) BELEWS CREEK, LITTLE BELEWS ) CREEK (NEST BELEWS CREEK) , ) AND EAST BELEWS CREEK. THIS CAUSE coming on to be heard and being heard before the Pollution Control Committee of the Board of Water and Air Resources on January 28, 1970, pursuant to the authority of Article 21, Chapter 143, of the General Statutes of North Carolina, as amended, upon the application of Petitioner, Duke Power Company, requesting a variance from temperature standards established and adopted for Belews Creek, Little Belewe Creek, and East Belews Creek; and upon consideration of said application and based upon the evidence presented at the said hearing and the record of the said hearing, the Board makes the following: FINDINGS OF FACT 1. The rate of growth in the Company's service area due to residential, commercial, and industrial activity has placed increased demands on the present supply of electricity, which is not adequate to meet this and future growth of the area. Therefore, the Belews Creek Electric Generating Plant is needed to meet the demands of this growth. 2. The most feasible way to generate adequate elec- tricity to meet the public necessity is through use of steam-operated generating facilities. 3. The steam generating system cycle requires the use of cooling waters for condensation of steam, after the steam leaves the turbine, which requires a large volume of water in a plant the size of the proposed Belews Creek generating facility. 4. In the absence of a cooling lake, the flow of waters in Belews Creek and all of its tributaries is not sufficient to supply the necessary volume of cooling water needed for condensation of steam at the proposed facility. 5. A lake of 3,863 acres formed by the back-up of water resulting from the construction of a darn would create a sufficient amount of cooling capacity for the condensation process. 6. The temperature of cooling water, after leaving the condenser at maximum load operation, will have increased 18°F. 7. The cooling water will be discharged into the lake for circulation to dissipate the waste heat. 8. A cooling lake has advantages over the alternative cooling method (cooling towers) for this else operation, to wit: evaporative loss is approximately one-half; accumu- lation of water for periods of drought; and enhance recrea- tional uses such as boating, bathing, and fishing. 9. As a result of Duke Power Company's commitment to develop recreational facilities on the lake, the public interest will be enhanced by the creation of a cooling lake. 10. A cooling lake cannot be feasibly used for this operation if the temperature standard presently in effect for Belews Creek must be adhered to. 11. Raising the temperature in the cooling lake above the present limits allowed by the North Carolina water quality standards will not adversely affect the public interest. -2- 12. The Company will release water from the lake in such a manner as to provide a minimum stream flow of 10 cfs to enhance naturally occurring stream flows. The Company further assured that the quality of such releases shall con- form to all established water quality standards for Belewa Creek below the dam. The Board further finds aa: CONCLUSIONS OF LAW 1. The North Carolina Hoard of Water and Air Resources is empowered by General Statute 143-214.1 to establish water quality standards and to classify the waters of the State in accordance therewith. 2. The North Carolina Board of Water and Air Resources, having adopted temperature standards for the waters of the State, may grant a variance from such temperature standards pursuant to Section 1I.8. of the "Classifications and Water Quality Standards Applicable to the Surface Waters of North Carolina." 3. Section 11,8. authorizes such a variance "for such period as the public interest may require or permit." 4. The variance requested by Duke Power Company is proper under Article 21 of Chapter 143, General Statutes of North Carolina, as amended, and the applicable rules and regulations adopted by the Board of Water and Air Resources in that the public interest will be served by both the increased supply of electricity and the recreational and other benefits to accrue from the creation of the cooling lake, 5. Based upon the Finding of Fact that the public will not be adversely affected by a rise in the temperature above the present limits, the Board has the power and authority to grant the variance. -3- Based upon the foregoing Findings of Fact and Con- clusions of Law of the Board, IT IS NOW, THEREFORE, ORDERED; In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina, as amended, and other applicable laws, rules or regulations, a variance from temperature standards is hereby granted to Duke Power Company, Charlotte, North Carolina, for a proposed cooling lake impounded by a proposed dam in Stokes County at North Carolina grid system coordinates North 937,000 and East 1,698,000 and upstream elevation on Belews Creek, Little Belews Creek and East Belews Creek at 725 feet above mean sea level. This variance is subject to the following limitations: 1. The maximum instantaneous surface temperature (as measured 1 foot below the surface) shall not exceed 95°F at any point east of North Carolina grid coordinate E 1,698,000 nor upstream (south) of the Southern Railroad as it crosses the three above-noted streams. 2. That portion of the lake lying west of North Carolina grid coordinate E 1,698,000 and downstream (north) of the Southern Railroad crossings shall be operated in accordance with the proposal and supporting data for application for permit to construct and operate a cooling lake submitted by the Company. 3. The Company shall install, operate and maintain appropriate measuring and recording devices acceptable to the Department of Water and Air Resources to continuously monitor water temperature at the Southern Railroad crossings of Belews Creek and Bast Belews Creek and at the outlet works of the dam for water released downstream and shall submit such monitoring data to the Department of Water and Air Resources at monthly intervals. -4- 4. All other applicable water quality standards adopted by the North Carolina Board of Water and Air Resources shall be met at all times within the entire lake, except in the hypolimnion during periods of natural thermal stratifi- cation, and all applicable water quality standards, including temperature, shall be met in the waters released from the reservoir at the dam. This ' day of /2-7t7rr 1970. afszaan, or faro Ins Boar(' v of Water and Air Resources I, E. C. Hubbard, Assistant Director, Department of Water and Air Resources, State of North Carolina, do hereby certify that the above is a true and correct copy of "Special Order in the Matter of the Application filed by Duke Power Company of Charlotte, North Carolina, requesting a variance from the temperature standards applicable to the classifications assigned to Balaws Creek, Little Belews Creak (West Belews Creek), and East Balms Creek." I do further certify that said Order was adopted by the Board at its meeting duly called and held in Raleigh, North Carolina, on ; March 27, 1970, Witness my hand and the seal of the Board of Water and Air Resources this the 7eh day of April71100. E.-C. Hub bar , Aas *tent irector Department of Water and Air Resources "5_ Pollution Control Committee, Board of Water and Air Resources Public Hearing January 28, 1970 REPORT OF PROCEEDINGS AT PUBLIC HEARING RELATING TO APPLICATION FILED BY DUKE POWER COMPANY OF CHARLOTTE, NORTH CAROLINA REQUESTING A VARIANCE FROM THE TEMPERATURE STANDARDS APPLICABLE TO THE CLASSIFICATIONS ASSIGNED TO BELEWS CREEK, LITTLE BELEWS CREEK (WEST BELEWS CREEK), AND EAST BELEWS CREEK IN THE ROANOKE RIVER BASIN January 28, 1970 Pollution Control Committee North Carolina Board Of Water And Air Resources Raleigh NORTH CAROLINA BEFORE THE POLLUTION CONTROL COMMITTEE, NORTH CAROLINA WAKE COUNTY BOARD OF WATER AND AIR RESOURCES IN THE MATTER OF: THE APPLICATION FILED BY DUKE • POWER COMPANY OF CHARLOTTE, NORTH CAROLINA REQUESTING A • • VARIANCE FROM THE TEMPERATURE TRANSCRIPT OF HEARING STANDARD APPLICABLE TO THE CLASSIFICATIONS ASSIGNED TO BELEWS CREEK, LITTLE BELEWS CREEK (WEST BELEWS CREEK), AND EAST BELEWS CREEK. BE IT REMEMBERED that a public hearing in the above captioned matter was held in the Auditorium of the Laboratory of Hygiene Building, Raleigh, North Carolina, beginning at 10:15 a. m. on Wednesday, January 28, 1970, after due notice, at which the following transpired: Mr. P. Greer Johnson, Chairman, Presiding: The Committee will now proceed with the public hearing in the matter of the application filed by Duke Power Company of Charlotte, North Carolina requesting a Variance from the temperature standard applicable to the classifications assigned to Belews Creek, Little Belews Creek (West Belews Creek), and East Belews Creek. The Members of the Pollution Control Committee, Board of Water and Air Resources, who are participating in this hearing are as follows: Mt. P. Greer Johnson, Chairman, Asheville; Mr. S. Vernon Stevens, Chairman of the Board, Broadway; Mr. J. Nelson Gibson, Jr., Gibson; Mr. W. Grady Steven Shiloh; and Mr. Raymond S. Talton, Raleigh. Appearing for the applicant, Duke Power Company, is Mr. Joe Bieseck Attorney at Law. Appearing for the Board and the Department of Water and Air Resources is Mr. Tom Bolch, Special Assistant, Consumer Protection Division, Office' of the Attorney General of North Carolina. The hearing will now come to order. This is a formal hearing being held pursuant to Section 143-215.4 (d) of the North Carolina General Statlit,,s and was called at the request of the applicant, Duke Power Company. The records of the Board of Water and Air Resources show that notice of this hearing was given by certified mail, return receipt requested, to the appli- cant by letter dated December 19, 1969. The records further show that such notice was receipted by the applicant on December 20, 1969 Such notice was published in the Winston-Salem Journal-Sentinel, the Danbury Reporter, the Stokes Record, the Reidsville Review, and the Greensboro Daily News. Is the Applicant ready to proceed? Mr. Biesecker: Yes, Mr. Chairman, we are ready to proceed Chairman Johnson: Is the Attorney General's Office ready '.o pro eed? Mr. Bolch: We are ready to proceed. - 2 - Chairman Johnson: Mr. Biesecker, proceed. Mr. Biesecker: Mr. Chairman, Duke Power Company will first call Mr. W. S. Lee, Jr. Chairman Johnson: Mr. Lee, if you will, come forward and be sworn in. Do you promise to tell the truth, the whole truth, and nothing but the truth, so help you God? Mr. Lee: I do, sir. Chairman Johnson: Mr. Lee. Mr. Biesecker: This is the witness stand, Mr. Chairman? Chairman Johnson: Yes, please. Mr. Biesecker: State your name please. Mr. William S. Lee, Vice President, Engineering, Duke Power Company, P. 0. Box 2178, Charlotte, North Carolina 28201: My name is William S. Lee of Charlotte, North Carolina, Vice President of Engineering of Duke Power Company. Mr. Biesecker: What is your responsibility and duties with Duke Power Company, Mr. Lee? Mr. Lee: I'm in charge of the Engineering Design of new electric generating plants for the company including the selection of sites, the conceptual design, and the execution of the detailed design for these plants. In my capacity as an Officer of the Company and as a Member of the Board of Directors, I also have other management responsibilities. Mr. Biesecker: Do you hold a license from any governmental authority to practice engineering? Mr. Lee: Yes, I'm a Registered Professional Engineer in North Carolina and South Carolina. Mr. Biesecker: Would you state for the record, please, your educational background. Mr. Lee: I'm a graduate in Engineering from Princeton University in 1951. Mr. Biesecker: Mr. Chairman, at this time I would like to get some Exhibits into the record. I would like, if possible, to request the originals of those from the Staff if they are available. I'm referring to the November 20 letter from Mr. Lee. Mr. Chairman, the Exhibits I refer to are the November 20 letter 1969, from Mr. Lee to Mr. E. C. Hubbard which transmitted the applications of Duke Power Company, along with an engineering report and the necessary maps to support the request for issuance of the necessary Permit. I also have the January 27, 1970, letter from Mr. Lee to Mr. Hubbard. I'd like to have these marked as Exhibits. Chairman Johnson: Any objections. - 3 - Mr. Botch: We have no objections. Chairman Johnson: Please receive those as Exhibits A and B and C, etc. Mr. Biesecker: Mr. Lee, I hand you applicant's Exhibit No. C and ask you if you recognize it. Mr. Lee: Yes I do. This is a letter that I signed yesterday and delivered this morning, amplifying our request for Variance in this case and suggesting specific wording for such Variance. (See Exhibit C at the end of these Proceedings.) Mr, Biesecker: There's applicant's Exhibit B. Do you recognize that, sir2 Mr. Lee: Yes, sir. This is a letter that I signed on November 24, 1969, to the Board of Water and Air Resources enclosing the applica- tion for Permit, for the cooling pond and for the ash settling basin for the Belews Creek Steam Station and requesting a Variance with respect to temperature of the water quality standards. (See Exhibit B at the end of these Proceedings.) Mr. Biesecker: Now, I hand you Exhibits A, D, E, F, G and H and ask you if you recognize those and tell the Committee what they are. Mr. Lee: Yes. Exhibit A consists of two applications for Permit. One for the cooling pond and the other for the ash settling and storage basin. Attached to these applications, as supporting information, is an engineering report giving the basis of design of these facilities, the basis of operation of these facilities, the forecast temperature of the cooling lake and the treatment efficiency of the ash settling basin. Exhibit, D, E, F, G, and H are the maps and drawings of these facilities attached to the application and engineering report. (See Exhibit A at he end of the a Proceedings. Exhibit D - Reservoir Map; Exhibit E - Site Plan; Exhibit F - Layout of Dam, Dikes, and Spillway; Exhibit G - Dam, Dikes, and Spillway Typical Details; and Exhibit H - Reservoir Area - Volume Curve and Hydraulic Data are available for pesural in the Central File- of the Department of Water and Air Resources.) Mr. Bie,ecker: Thank you. Mr. Lee, two of these Exhibits, in fact, all of these Exhibits have your signature. I'd like to ask you if this engineering report and these maps were prepared under your supervision. Mr. Lec : Yes they were. Mr. Biesecker: Mr. Chairman, I'd like to request that these Exhibit; be admitted into evidence and be incorporated into the records. Chairman Johnson: So ordered. Mr. Biesecker: Mr. Lee, describe for us, please, why and when the Belews Creek Electric Generating Plant is needed. Mr. Lee: The reason it is required, is to meet the increasing public demand for electricity in the area of North Carolina and South Carolina that we serve. The increase in population; the increase in the standard - 4 - of living of folks that live in the area; the increase residential, com- mercial, and industrial activity in the area all add up to a substantial- ly increasing rate of need for electric generation. This rate of growth now is such that the total demand for electricity in our service area is doubling about every seven years, This means that in the next seven years we will have to build as much generating capacity as has been built since the Company began 65 years ago. Our all-time peak load for electri- city has occurred earlier this month on January the 8t4 when the peak reached 6,031,000 kilowatts. This is a substantial jump over the peak of last year and continues to indicate that our forecast of load growth are indeed going to be realized. For good reliability of electric service to the public, we require capacity to meet this load as well as reserve capacity to provide a margin to give good reliability of service in case something happens to one or more of the generating units. We must install, to meet this load, an average of over a million kilowatts each year for the next seven years. Belews Creek Steam Electric Gener- ating Station is proposed for service in 1974 and 1975. It will consist of two units of 1,143,000 kilowatts each with the first unit required for service by May 1974 and the second unit required for service to meet this public need by May 1975. Mr. Biesecker: Why was this particular location selected? Mr. Lee: The Belews Creek area lies in the northeast portion of the Duke Power Service Area. That service area lies in the Piedmont Section of North and South Carolina going from the Virginia border at North Carolina to the Georgia border in South Carolina. About two-thirds of that area is in North Carolina and one-third in South Carolina. The area is some 20,000 square miles. Now the last two major generating plants that will have been completed by the time Belews Creek is needed are located elsewhere in this service area. For example, this spring we will be completing the 2,200,000 kilowatt Marshell Steam Station on Lake Norman in the Central part of our System here in North Carolina. And then in 1971 through 1973, we will be completing our Oconee Nuclear Station in the southwest portion of our Service Area as a part of the Keowee-Toxaway Project. Now the next increment of capacity is needed in the northeast section of our ervice area to serve the growing energy demand in the Winston-Salem, Greensboro, Durham area and surrounding communities. This is why a location in this vicinity was selected. Mr. Biesecker: Mr. Chairman, before I proceed further, I overlooked one technical matter that I would like to clear up at this time. I'd like to tender Mr. Lee as an expert engineer and qualified to give his opinion based on the evidence submitted before the Committee. Mr. Bolch: We have no objection to that. Chairman Johnson: We consider any engineer licensed by the State Board as an expert. Mr. Biesecker: Thank you. Now, Mr. Lee, would you please describe the Steam Station itself. Mr. Lee: Yes, sir. The steam station will consist of two coal-fired generating units. Each unit will have a large boiler. These boilers were ordered in December 1968. Each unit will have a large turbine generator of this 1,143,000 kilowatts ordered in the early spring of 1969. The sta- tion will burn this coal to make steam, to drive the turbine, which in - 5 - turn drives the generator. The plant will be served by a railroad that will bring in an average of two train loads of coal a day or some 17,000 tons per day. The auxiliary equipment in the plant, of course, is sub- stantial; and included in this auxiliary equipment will be a sewage dis- posal plant of which will be the subject of a future application to this Committee. It will include fly ash precipitation equipment which will be the most up -to-date and sophisticated air pollution control equipment ,hat we can obtain and it, too, will be subject to a future application to thi , Committee for a Permit. That air pollution control equipment, in conjunction with the tall stacks, we fully expect to adequately meet the standards as now proposed by the Board, as well as the recommended standards of the Department of Health, Education and Welfare with respect to air pollution control. The estimated cost of the Belews Creek Steam Station with all this equipment and 'he cooling pond is $269,000,000. The plant itself will be located in Stokes County and I'm advised that this investment in that County will more than double the assessed evalua- tion of taxable property in Stokes. Mr. Biesecker: Would you describe, please, the proposed cooling pond and the engineering reasons serving as a background for building the cooling pond? Mr. Lee: Yes, and with the Chairman's permission could I leave the witness stand and put up a map so I can illustrate my testimony by the use of this map? (Exhibit I - Map of Belews Lake and Belews Creek Steam Station is available for perusal in the Central Files of the Department of Water and Air Resources.) Chairman Johnson: Proceed. Mr. Hubbard: Those of you who would like to see better may wish to move across the isle. Mr., Lee: I. will proceed with the answer to the question that I describe the proposed cooling pond and the engineering reasons for build- ing it. On the map that we are showing here, which is also a part of the Exhibits that were filed as well as this individual map is a part of the Exhibit in the record, north lies to our right, west lies at the top of the map, the orientation of the lake is in the northsouth direction, and to get it on a reasonable piece of paper, north is to our right. That also applies to this small vicinity map in the upper right-hand corner. Here we can see that the proposed cooling pond is approximately an equal distance from Winston-Salem, North Carolina and from Greensboro, North Carolina and it lies at the intersection of the county lines of the four counties - Stokes, Rockingham, Gilford and Forsyth. Portions of the cooling pond will lie in each of those four counties. The bulk of the map shows the proposed cooling pond. It will be created by the con- struction or a dam some 3,400 feet long and 175 feet high on a creek known as Belews Creek. At the dam site, the drainage area of the Belews Creek Basin is about 79 square miles. The dam will impound water that will back up the main stem of Belews Creek and at the southern end of the lake it splits into Belews Creek in the center and East Belews Creek to the east of that. There is another tributary to Belews Creek called West Belews Creek that comes into Belews Creek from the Southwest. There is an unnamed tributary that comes into Belews Creek from the Southeast near the dam, and the lake will cover those four principal tributaries. The steam plant will be built on the shore of West Belews Creek in Stokes - 6 - County and as a part of the construction of the steam plant, a dam will be built across West Belews Creek such that the cooling water for the plant will come into the plant from the north side of that dam, will be warmed in the condensers and will flow out the southside of that dam into a pond, we call the precooling pond where the temperature will drop very rapidly, and thence through a discharge canal in with the main body of the Belews Creek lake. This lake will have an area of 3,863 acres. The sole justification for building this dam and this lake is to serve as a cooling pond for this steam electric generating plant. In generating electricity, the spent steam exhausted from the turbine must be condensed and returned to liquid or water. There is no way to generate electricity in this part of the country in such bulk, as is required to meet the public need in this area, without involving steam power; and every steam power plant requires condensation of the steam as it leaves the turbine. To condense thi steam, the steam flows out of the exhaust of the turbine down around the outside of many thou-ands of tubes in the condenser. The steam is on the outside of the tubes and cooling water is pumped through the inside of the tubes causing the steam to condense and then to condensate to collect at the bottom of the condenser to be returned through the feed- water and boiler cycle and back to the turbine once again. The cooling water does not come into physical contact with this steam. This steam is anywhere from 90 to 110° F, it is very low pressure below atmospheric steam, and that's why it can still be steam and be at that low temperature. The cooling water going through the inside of the tubes removes the heat of condensation from this steam. Ultimately, this waste heat that came from the steam is to be transferred to the atmosphere and thence by radiation to space. The cooling water is used as the transport medium to convey this heat from the condensing steam to the atmosphere. When the cooling water leaves the condenser, in the summertime and most of the year, it will have been increased in temperature when the plant is at full load operation by 18° F. The function of this entire cooling pond is to dissipate this waste heat to the atmosphere from this cooling water which is used as the trans- port medium. The warm water will go back into the lake and through this discharge canal and will spread out on the surface of the lake because it is light and brilliant compared to the cooler waters of the lake and thus, fortunately, it exposes itself to the atmosphere where it gives up its heat by evaporation and by radiation and by conduction. As the water cools, it will come on around the point between Belews Creek and West Belews Creek and return to the steam plant intake. By the time it reaches the steam plant intake, this pond is adequately sized and conservatively applied such that the water will have once again reached its naturally occurring ambient temper- ature and be ready for recycling again. The average flow in Belews Creek and all of its tributaries at the dam is in the neighborhood of 90 cubic feet per second. The flow through the condensers of the power plant, when at full load, will be in the neighborhood of 2,500 cubic feet per second. So you see this creek and all of them combined, are grossly inadequate to supply the cooling water of such a power plant as this without this recirculation feature and the development of a facility to radiate this heat to the atmos- phere that has been removed from the condensing steam. There are many lakes like this in successful service over the country including several in North Carolina. I believe this would describe the cooling lake. Mr. Biesecker: Thank you, Mr. Lee. Do you want to take the stand again? What other means of cooling could have been selected? And how would another means compare to this proposed cooling pond? - 7 - Mr. Lee: In this part of our State there are no large rivers or water bodies that are adequate to provide this cooling function so there are only two possibilities. One is a cooling pond as we have proposed. The other possibility is the installation of cooling towers. We have two cooling towers in service. We have studied them at other locations and, therefore, we are fully familiar with cooling towers and their opera- tion. A series of cooling towers applied to the Belews Creek Steam Plant would perform the same function as this cooling pond. That is, it would provide a means whereby the cooling water can transport waste heat from the spent steam to the atmosphere. There are a number of engineering and public interest reasons why a cooling pond in this application is much of a better choice over a cooling tower. First of all, the cooling pond represents, in substantial measure, good water conservation practices when compared to a cooling tower. In a cooling pond the warmed water is cooled by three mechanisms. One is evaporation, the other is back radiation, and the third is conduction into the wind and perhaps other water. In a cool- ing tower e sentially all of the cooling i by evaporation; thus, the cool- ing tower evaporates more water for the same total heat removal duty as would a cooling pond. In addition, a cooling tower recycles the water in a close circuit time and time again, and each time water is evaporated, the natural impurities and minerals in that water are left behind in the cooling tower. These must be removed and this water, also, must be treated in order to avoid a pollution problem. But with respect to water conservation, our studies for the average climate in this area show, and for this we have used tools that are well established and renown, our studies show that the consumptive loss of water by a cooling tower would be twice as great as with this cooling pond for the same cooling duty. So water conservation is one, water pollution control is another advantage of this pond in that it will not have the waste that a cooling tower would create by the accumulation of solids and residuals. Cooling towers also offer problems frequently in the wintertime, particularly for a plant of this size, with the creation of immence fogs and icing conditions. In the case of a cooling tower when compared to this cooling pond, the cool- ing tower would offer no means of flood control; would offer no storage for low flow augmentation; and would offer no opportunity to provide a water >uppiy to someone who might have a need for it. All of these are offered by this cooling pond. And then finally, a cooling tower does not offer the opportunity for public recreation and development of fishery re .ource ; . I have yet to see anyone fish or water ski in a cooling tower. And the purpose of the tower and the pond would be identical. Mr. Becker: Would you like a drink of water? You seem to be.,.. Mr Lee: No. I'm all right. Mr. Bieecker: O.K. Go ahead. You have suggested several other uses for the proposed cooling lake. Would you please explain what you mean by these suggestions. Mr. Lee: Yes. Of course, again the lake is proposed and justified solely for one purpose and that is as a wa to treatment facility fol pro- viding this cooling function. But there are other uses that we expect to see of the lake that are fully compatible with this primary func° ion. One of these is a measure of flood control. The full pond of this cool- ing pond will be at elevation 725 above mean sea level. We are designing the dam and the spillway to take a flood surge upon the maximum hypothetical rainfall in the basin to elevation 735. This means there are ten feet or roughly 4,000 acre-feet of flood storage that would be provided for the - 8 - Dan River Basin that are not now provided. For this particular Belews Creek Drainage Area, this storage is equivalent to holding back a run- off of nine inches from the entire area. A second feature of this cooling pond will be low-flow augmentation in times of extreme drought. We have designed the pond so that it can be drawn down five feet for this purpose, in order to release downstream flows that equal or exceed the minimum flows during a drought. As our engineering report to the application indicates, the published United States Geological Survey figures to be six and a half cubic feet per second at this dam site, and at a five-year frequency, 10 cubic feet per second. We can take the six and a half cubic feet per second minimum inflow and by use of the top five feet of our storage, drawing our pond down, we can augment this six and a half feet to reach 10 cubic feet per second of releases downstream and at the same time this storage would make up for the evaporative losses for having created a lake where one does not now exist. So there will be in times of extreme drought, low-flow augmen- tation created by this cooling pond. Another one is water supply. If it becomes in the public interest, subject to the approval of the appro- priate State Agencies, someone may want to withdraw water from our pond for use as a public or industrial water supply; and this reservoir, within that five feet allocation at the top of the pond, can be used for that purpose. With respect to fishing, we emphasize that this is a waste treatment facility when coupled with an extraordinary heat wave there could conceivably be some fish killed near the plant discharge from temperature affects. We have been using the same 18° temperature rise in waters in the Piedmont Section of North Carolina for 40 years and have never seen such effects happen. Even so, in spite of this possibility, we feel strongly that the cooling pond will substantially enhance the fishery resources when compared to the occasional spring- time sucker fishing in the presently undeveloped creeks. We have seen substantial enhancement of fishery resources in the other 21 major lakes that we operate, many of which have large steam electric power plants, using them as a source of cooling water. And finally, the other use that we feel will be fully compatible with the use of this facility a< a cooling pond is public recreation. Again on our other lakes, in both Carolinas, we have invested a lot of money and we have done a lot of mid-term and long-term planning to enhance the public recreation values. We now have some 44 public access areas in service. On our lakes we have eleven more under construction. We have a number of camp grounds and have participated in the development of many marinas, picnic facilities, boat-launching ramps, and other things to develop and make available these water resources for public recreation. At Belews Creek we intend to do the same thing. The Company will develop launching areas for boats, parking areas for cars and trailers, sanitary facilities, picnic facilities, and will try to keep ahead of the public demand in building these facilities. We have been able to keep ahead of the public demand in our other lakes where we bring new facilities into service to enhance public recreation before the existing facilities become over crowded. We intend to do this at Belews Creek. We will develop recreation facilities particularly in the cove that lies south- east of the dam at the lower part of the lake. Mr. Biesecker: Why is Duke Power Company interested, Mr. Lee, in providing recreation and fishing opportunities for the public? Mr. Lee: We are not only interested, but we are committed. We are a public utility providing electricity to people in the area we - 9 - serve. Our business thrives only to the extent that the people in this area thrive. That is, they improve their standard of living. The en- joyment of outdoor recreation, including fishing, is one of the elements that we and others feel is fundamental to improving the quality of life in our service area or any service area. We feel that providing these opportunities will attract new people and new industries', who want good workers, into our service area which wilt help the economic health of the area, and we feel that these recreational opportunities will also provide an environment for motivated folks who insist on living in an area that provides for these opportunities. As the percapita income of our population increases, the folks have more money to spend on out- door recreation and more interest in outdoor recreation. In the long- run, this helps busines9 in the area and, in turn, helps the electric business. We feel it is a fundamental part of our business to aid in these environmental considerations because the last thing an-enlightened electric utility would every want to do would be to find itself serving an area where the environment was besmirched. I might add that our plans for this cooling pond and its behavior as a waste treatment facility, in combination with its beneficial uses that I've sighted, are backed up by a number of environmental research programs. Mr. Biesecker: Summarize these programs, Mr. Lee, please. Mr. Lee: We began our interest of real record in environmental considerations in 1923, when the company hired a full-time medical physician, experienced in public health matters, to head up a then formed department of sanitation and public health concerned with sanitation and public health matters Largely associated with our reservoirs. In 1925, the company began to offer the use of these reservoirs to cities and towns as a source of public water supply; and today there are twenty-two towns and cities with a served population of over a half-million who are drawing their water supply from the Duke Power Reservoirs at no cost to the cities. In 1926, we first used a lake for cooling purposes for a steam electric power plant and began to record temperature information. In the 1930's, we began to develop recreation facilities and to open up these lakes for public enjoyment. In 1955, we began the first studies in the area of limnology including the chemical and physical and temperature of characteristics of waters in our lakes, both with respect to the hydro- electric plants and the steam electric plants. After two years, we were convinced that the study of these waters and their behavior was of such long range importance to the area we serve that we established a full time department in 1959 of field laboratory and technical personnel to monitor the quality of waters in our service area to do experimental measurements and synoptic surveys of water chemistry and, dissolved oxy- gen, iron, manganese, temperature, and turbidity; and to provide us as engineers with good field information on the behavior of these lakes which we could then use as tools for forecasting the behavior of future, as yet unbuilt, lakes and do a more intelligent job of planning and con- ceiving these new facilities so that we would know in advance what their behavior would be, Now this has been done then since 1959 and there are several major facilities now in service on the basis of the forecast made by the water sampling program that we undertood. Now we, of course, did this with the full knowledge and guidance and cooperation of the Staff of this Board. In 1966, we expanded this program in cooperation with several other electric companies and under the management of John Hopkins University we undertook a massive study of the thermal effects of warmed water from a steam plant condenser into a lake. - 10 - • This was done and is still going on at our Marshell Steam Station on Lake Norman. From 1966 to date or for the first two years of that program, the investigations were in the area of physical and chemical investigations including temperature. Aiding us in these investigations, in addition to our own department, were consultants we have retained from campuses in our area and the overall management of the technical leaders of the whole nationwide program at John Hopkins University. In 1968, we established still a third department within our company in- terested in the environment. The first was the public health and sani- tation in 1923, the second was this water resources research group in 1959, and in 1968, we established the environmental engineering group headed by our principal environmental engineer, Mr. Charlie Dewey. It is Charlie's function to make sure that we, as plant designers, properly do our environmental homework and reflect this in our plant designs before we make final decisions. Also, in 1968, the thermal studies at plant Marshell were expanded to include the full spectrum of the ecology including aquatic biota. Additional consultants were retained to help with the microbiota in the food chain and the cooperation of the North Carolina Wildlife Commission was obtained in sampling and measuring fish, their size, their number, and their growth, as we zero in on pinning down the effects of warm water on the entire ecological system. The results of all these studies are not in yet, but when they are, of course, they will be published and made a part of the public literature on the subject, I'm sure, by all parties who are participating in this work. But we can say this, we have observed no apparent ill effects in any instance from having discharged this warm water into a lake. We have, on the other hand, observed some evidence that the ecology may be enhanced. During the fall, winter, and spring months fishing near the effluent from these steam plants is very popular and very successful. We don't know yet whether the fish like the warm water or whether what the fish like to eat like the warm water. But in any event, the fish come there. I hope that our research efforts will be able to establish exactly why they do come there. There may be subtle changes to the ecology, good or bad, that we have not fully identified, but so far all the apparent evidence leans towards the good side. These are some of the environmental programs that we are undertaking and they are con- tinuing. When the cooling pond at Belews Creek is built, we will make measurements and compare them with the tools that we've used to develop the forecast for Belews Creek and we expect to find good correlation as we have with our other projects. We will include the Belews Creek cool- ing pond in our regular sampling program. Mr. Biesecker: Why did Duke apply for a Permit and, in addition, for a Variance from the water quality standards with respect to tempera- ture only for this cooling pond? Mr. Lee: Well first of all, we applied for Permit simply because the Belews Creek cooling pond is a waste treatment facility intended to dissipate the waste heat from electric generation to the atmosphere, just as a sewage treatment plant is a waste treatment facility. Except in the case of the cooling pond, we can expect that waste treatment facility to be enjoyed by many other uses in the public interest. And the Statutes and regulations of our State, of course, require that a Permit be obtained for a waste treatment facility and hence we have applied for that. It is pointed out that there now exists three small creeks, or a fourth one if you include the unnamed creek at the south- east of the dam, in this area. And what we propose to do is to build - 11 - an artificial waste treatment facility on top of these creeks. For this we need a Permit. We would equally need a Permit if we went out and scooped out a mammoth 3,800 acre bathtub in an area where there was no creek and fill it full of water and use it as a cooling pond as a waste treatment facility. The water discharged from this waste treatment facility back into Belews Creek will fully meet the water quality standards promulgated by this Committee. However, lying underneath this waste treatment facility will be the existing creek beds, three of which have assigned water quality standards. These standards say, or the regulations associated with the standards say, that to determine compliance with the standards, samples should be taken and I quote, "to be representative of the re- ceiving waters after reasonable opportunity for dilution and mixture with the waste discharged thereto," end of quote, your regulations. We first took the view that the cooling circuit from the steam plant through the discharge and around to the intake constituted such reason- able opportunity. However, it was suggested by the State Attorney General's Office that a Variance from the temperature standards would be required since the temperature of the surface of our cooling pond would exceed the temperature limits although they were on the surface of a waste treatment pond and many feet above the level of the existing creek beds lying beneath the lake. This interpretation of the regulations then leaves us no choice but to request a Variance from the temperature standards for those parts of the cooling pond that will see water warmed by our plant. Since future interpretations may be consistant with the current view of the Attorney General 's Office, the Variance is now neces- sary for the construction and operation of this plant. Here, I might explain the terms of the Variance that we propose for consideration of the Board. First of all, we are talking about maxi- mum instantaneous temperatures of water at any time when measured at the surface. We should bare in mind that the bulk of this lake, lying be- neath the surface, will not have its temperature significantly effected by the warmed water that will float out on top. Second, the water quality standards prescribe a limit of a seven degree rise and we are proposing an 18 degree rise as indicated in our application. This is necessary in order to condense the steam. Third, under still wind and still water current conditions, there will be 2,050 acres of this lake (the total lake is 3,863 acres) involved in the cooling circuit from the steam plant discharge back around to the steam plant intake; thus, leaving some 1,813 acres outside of this cooling circuit or some 40 percent of the' lake sur- face. Now this 1,813 acres won't stay still. For example, there will be wind and current conditions that tend to push the warmed water downstream on the lake when you have a prevailing southwesterly wind. Or there will be wind and current conditions that might push it upstream on the lake. However, outside of the areas of movement of this warm water beyond its average location, we have proposed that there be four coves of this lake that will not feel the significant effects of this warm water; and the surface area of these four coves is 650 acres. One of these coves is located down near 'the dam where we propose the recreational developments. This cove is out of the cooling circuit even under adverse wind or current conditions. The other three coves are the upper end of Belews Creek, East Belews Creek and West Belews Creek above the Southern Railroad Bridge. The Variance that we propose, and this is after discussion with the Staffs of several State Agencies that have cognizance over these matters, indicates that the maximum surface water temperature, as measured - 12 - one foot below the surface, will not exceed 95°F at any point east of a line drawn across the mouth of this cove, in this direction (referring to the map), or at any point south, that is upstream, of the three Rail- road Bridge on the other three coves. The Variance suggests that we, the company, will install and operate certain temperature recording devices at specified locations on this lake; to continuously monitor the temperature at the surface; and to furnish records of this monitoring to the Department on a regular basis. With respect to the central part of the lake, the lake will be operated in accordance with our applica- tion and engineering report attached to the Permit to construct and operate this cooling lake as a waste treatment facility. The Variance language also ,suggests that all other applicable water quality standards shall be met at all times within the entire lake except in the hypolimnion, or lower layers, during periods of natural thermal stratification. And all applicable water standards including temperature shall be met in the waters released from the reservoir at the dam. Mr. Biescker: When does the company need this Permit and Variance, Mr. Lee? Mr. Le : We need them both immediately and let me explain why. This power p`s`.ant is needed to meet the public need for electricity in May 1974. This is a small creek, but a large pond. During the dry years of record, it will take this pond four years to fill. We, there- fore, must close this dam and close this creek this coming May, if w: are to :now the four years for this pond to fill so that a $269,000,000 facility can go into service to meet this public need for electricity. Now we have been working on this for a long time. As in all of our power plants and developments of this type, we do our environmental homework in advance of selecting a site and once we have done this and come upon that site that we think will be most compatiable with the environment and all other aspects of the need, then we review this informally with the cognizance State Agencies before we announce a plant. We did that in this case. That occurred nine months ago, last April. That was in April '69. The plant was announced in May and then, of course, we under- took constructive discussions with a number of State Agencies with respect to our draft of our application for Permits and then finally, of course, filed the final application itself in November and the Variance today. So this has been a long period of study of this proposed facility. We do need it promptly so that we can build this dam and begin impounding Water and just a , soon as earth breaking weather breaks, we must move dirt in order to meet this schedule. We feel that it has been thorough- Ly explored at the Staff and technical level and we submit that it is in the public interest in every sense of the word. Mr. Biesecker: You may cross examine him, Mr. Bolch. Mr. Bolch: Mr. Lee, concerning the Company's letter of January 27, would you refer to that, I believe it is Exhibit C, on the second page. Mr. Lee: Yes, sir. kir. Botch: Paragraph No. 4. Will you explain to me, I'm not an rngineer, what is meantby hypolimnion during periods of natural thermal trat fication? What do you mean by that? - 13 - Mr. Lee: Yes, sir, Mr. Bolch. Hypolimnion is the bottom levels of water in any lake. Thermal stratification is during the summertime, as we all know when we were boys and went swimming, the surface is warm, the middle depth is average, but at the bottom of the lake is cool water. Well this hypolimnion or bottom level stays cool all summer long and because cool water is heavier than warm water, it sinks and stays at the bottom. Over the summer, the natural organic waste from fish and other biota accumulate in this water and deplete the dissolved oxygen content of these bottom waters. This is a natural phenomenon and occurs on any lake that stratifies thermally. Therefore, the bottom waters of this lake do not have 4 mg/1 of dissolved oxygen, or will not, as this is so in any deep lake in North Carolina or anywhere in the south. This is a natural phenomenon. The water quality standards, of course, require a minimum of 4 mg/1 of dissolved oxygen wherea literally this won't be the case in these bottom waters. Although the average oxygen content of the entire lake will be above 4 mg, and as we have indicated, the waters discharged from this project will comply with water quality standards in all respects. So that parenthetical phrase there was simply to acknowledge the natural phenomenon that exists in all lakes. Mr. Bolch: How often or what percentage of the year would you esti- mate that this would occur? Mr. Lee: Probably two months. Mr. Bosch: In what season? During the summer? Mr. Lee: It will occur about the first of August to about the first of October. When fall cooling occurs the waters become mixed again and this brings these bottom waters to the air where they can be exposed to the atmosphere and reaerated. Mr. Botch: How great a percentage of the lake might this hypolimnion be? Does it vary from time to time or is it a fixed demarcation? Mr. Lee: It does vary and it tends to grow as you move from August into September because the fish create wastes that consume the oxygen in the bottom of the water and there is no way to replenish that oxygen until in the fall it comes again to the top when the cool nights come and that causes mixing of the reservoir. It comes again to the top, is exposed to the atmosphere and replenishes its oxygen. This will happen no matter what kind of lake you build for what kind of purpose. To give you an approxi- mate idea of the percentage of the lake involved, the total storage volume of this lake at full pond is about 187,000 acre feet. The hypolimnion area that would have oxygen contents low enough below 4 mg/1, based on our ex- perience in sampling lakes in the Piedmont, would probably be from eleva- tion 690 on down. At elevation 690 on down, the volume on the lake is some 85,000 acre feet which is about 42 or 43 percent of the -lake volumes. This, of course, is a temporary and natura phenomenon and will correct itself in the fall. Mr. Balch: I see. Does this paragraph 4 then refer only to oxygen content? Mr. Lee: Yes, that's the only reason it was put in. - 14 - Mr. Balch: None of the other standards would be accepted by this paragraph? Except temperature and oxygen content? Mr. Lee: Well we don't need the exception for the bottom waters with respect to temperature. Now this was in an effort to simplify the wording of the Variance and to recognize the natural phenomenon. There are two other chemicals that develop in water when water loses its oxy- gen. That is, two other chemicals become soluable. These are iron and manganese. There are instances in the very bottom of some lakes where the soluable iron and manganese content of water goes up when the oxygen goes down. There have been instances where the iron and manganese content of these bottom waters exceeds water quality standards, so they though are related to oxygen. Mr. Bolch: You testified that there will be some recreation bene- fits available in the lake. How much of the lake, or could you point out on the map, what areas will be open, say, the boating. Mr. Lee: The access to the lake will be in this cove in the south- east part of the lake. The areas for boating will include the lower por- tion of the lake and, if conditions are satisfactory with respect to temperature and behavior and performance of this lake, will include this arm of the lake as well as this arm of the lake. We do not intend to permit boating through the connecting canal because the wake tends to tear up the banks of such a canal pretty badly. Mr. Bolch: Would water skiing follow the same area as boating? Mr. Lee: Yes. Mr. Bolch: How about fishing, where would that be permitted? Mr. Lee: Fishing will be generally through the lake. In the summertime we would not plan to have fishing near the effluent of the steam plant because we feel the water is too warm in the summer to pro- mote good fishing. But in the wintertime we expect this to be very ex- cellent fishing. Mr. Bosch: How will you control that during the summertime? Mr. Lee: We have not established firm plans yet for developing the facilities nor exercising the control. Mr. Botch: I see. Another point, will home sites be developed on the lake? Mr. Lee: No, sir. This lake lies midway between Greensboro and Winston-Salem. Because of the thermal effects in this cooling cycle we won't have recreation facilities in the vicinity of this cooling cycle itself and it is our feeling that the greatest number of the public can be served by developing public facilities rather than individual home sites. The large population and the expected high recreation demand or a lake that has relatively small shoreline suggests this to Us and this is the plan we intend to follow. Mr. Bolch; I see. You also testified about municipal water supply. Is there any municipality that is currently drawing water supply from any one of these creeks? - 15 - Mr. Lee: Yes, there's a small water supply upstream on Belews Creek and I don't remember the name of the community. This has been accounted for in the water budget calculations of our permit application. Mr. Botch: Might this be the Town of Kernersville? Mr. Lee: Yes, I think it is. Mr. Botch: If the cooling lake is built under Permit and a Variance from the Board, will Kernersville be permitted to continue withdrawing wa°:.er supply? Mr. Lee: Oh yes. Oh yes. Mr. Botch: Back to water quality. How much water will be with- drawn and evaporated in the steam process? Could you give me an estimate? I enders you if have recycling, but isn't there some loss? Mr. Lee: There is some loss when the warm water returns to the lake simply because its a little warmer it tends to evaporate at a slightly higher rate. The average evaporation from this lake is due to both heat and the fact that we are creating a lake and exposing these average of our evapora- tion The P are not now exposed. g III acres to the air that p tion is expected to be 31 cubic feet per second. Had we elected to in- stall a cooling tower as a waste treatment facility instead of a cooling pond, the average evaporation and loss would be 60 cubic feet per second. Mr. Botch: Will there be any significant mineral discharge into the lake as a result of the evaporation? Mr. Lee: No, sir. The inflow into the lake, we think, is adequate to keep this well diluted. Mr. Botch: I understand that there's an ash settling basin pro- posedash or silt from this basin reach the lake? in the plans. Would any Mr , Lee I have to say yes when you use the word "any". But let' quantify it. Mr. Bolch: O.K. How much? Mr Lee; The ash basin is identical in design and concept to the six we hAve in service now. And there the measurement of the total solid,. content of the effluent from the ash basins have resulted in less total solid in the effluent than there were in the water first brought in the power plant. That settling basin settles out so well that the effluent is of higher quality than the raw water we started with. In the case of Belews Creek, however, this large lake will also act as a settling basin so I expect its water to be very pure. There will be some trace elements of ash that will come back to the lake, but of course, the efficiency of the ash basin will be in excess of 99 percent removal. Mr. Bolch: The letter of January 27, if you have that available, Exhibit C. On the first page you refer to upstream elevation on Belews Creek, Little Belews Creek, and East Belews Creek at 725 feet above mean sea level. - 16 - Mr. Lee: Yes, sir. Mr. Botch: Where would that be? Is that on the surface of the lake or. .. Mr. Lee: That Language is simply to define the boundries of the lake, which boundaries are created by a dam at the location sited in the letter, built so that it compoundwater to elevation 725. The elevation 725 contour is the one depicted on this map. Mr. Botch: So that's the top level of the lake? Mr. Lee: That's the full pool. Mr. Bolch: I see. Mr. Lee: There will be the rare use of flood storage for flood control up above this level. Mr. Botch: Mr. Lee, does the company either own or control all of the land surrounding the lake? Mr. Lee: We don't yet, but we expect to be able to. Mr. Botch: I see. Will this be ownership or controlled through easements? Mr. Lee: This will be fee ownership in nearly every case. Mr. Botch: I see. We have no further questions. Mr. Biesecker: That concludes the evidence approved by the appli- cant. Chairman Johnson: You have no other witness? Mr. Biesecker: No, sir. Chairman Johnson: Well, in that case, Mr. Botch, do you have some witnesses? Mr. Botch: Yes. Mr. Coburn, will you come around and be sworn, please. Chairman Johnson: Mr. Coburn, do you swear to tell the truth, the whole truth, and nothing but the truth? Mr. Coburn: I do. Mr. Johnson: Take the stand. Mr. Botch: State your full name. Mr. Coburn: My name is Darwin L. Coburn. Mr. Botch: Mr. Coburn, by whom are you employed? - 17 - Mr. Coburn: I'm employed by the N. C. Department of Water and Air Resources. Mr. Botch: In what capacity? Mr. Coburn: I am Chief of the Water Pollution Control Division of the Department. Mr. Botch: In such capacity have you had an occasion to review the proposed plans for this lake, the Permit Application, and the proposed Variance from Duke Power Company. Mr. Coburn: Yes, I have. Mr. Botch: As a result of that review, do you have an opinion con- cerning this project on behalf of the staff? Mr. Coburn: Yes. Mr. Botch: What is that opinion? Mr. Coburn: After having an opportunity to review the modified re- quest for Variance as contained in this letter, marked Exhibit C, the Staff recommends that the request should be granted. Mr. Botch: Are you personally satisfied that the public interest will be adequately protected if this Permit is granted and if the Variance is granted? Mr. Coburn: Yes, I am. Mr. Botch: Do you have any other information you'd like for the Committee to consider in this application? Mr. Coburn: No, I do not. Mr. Botch: Mr. Biesecker, you may cross examine now. Mr. Besecker: We have no cross examination. Mr. Botch: Thank you, Mr. Coburn. Mr. Andrews. Mr. Ralph Andrews. Chairman John,on: Mr. Andrews, do you promise to tell the truth, the whole truth, and nothing but the truth? Mr Andrew,: I do. Chairman Johnson: Take the stand. Mr. Bolch: Mr. Andrews, state for the record your full name, pleae, sir. Mr. Andrews: Ralph J. Andrews. Mr Botch: Where do you live? Mr. Andrews: Here in Raleigh. - 18 - Mr. Botch: By whom are you employed? Mr. Andrews: By the State of North Carolina. Mr. Botch: In what capacity? Mr. Andrews: At the beginning of the study of this project, I was Director of the North Carolina Recreation Commission. That has been assimilated in the Department of Local Affairs, for I am now acting as Senior Consultant. Mr. Botch: In such capacity, have you had an occasion to review the Application for Permit and Variance filed by Duke Power Company? Mr. Andrews: I have. I've checked int° this since it was first presented to the State. Other members of my staff have also studied it very carefully. Mr. Botch: I hand you paper writing and ask you if you can identi- fy it. Mr. Andrews: I can. Mr. Botch: What is it? Mr. Andrews: I signed this. It is a letter to Mr. E. C. Hubbard, Assistant Director. Mr. Botch: Did it concern this project? Mr. Andrews: Yes it does. Mr. Botch: I hand you another paper. I'd like to have this marked Staff Exhibit 1. I hand you another paper writing and ask you if you can identify it. Mr. Andrews: I can. Mr. Botch: What is it? Mr. Andrews: It's a letter to Mr. Hubbard containing a statement which I asked to give to this hearing. They have not seen this. Mr. Botch: Thank you. I'd like to have this marked Staff Exhibit 2. Mr. Chairman, we'd like to offer these in submission of evidence. Chairman Johnson: Accepted. Mr. Botch: Mr. Andrews, for the purpose of getting these Exhibits before the Committee today, I'd like for you to read these two letters. Mr. Andrews: This first letter is a letter to Mr. Hubbard, dated December 2nd, '69. (Exhibit 1, letter to Mr. E. C. Hubbard from Mr. Ralph J. Andrews, dated December 2, 1969, was read into the record and is included at the end of these proceedings.) - 19 - Mr. Bolch: That's the first one. Would you read the second one? Mr. Andrews: This is to Mr. Hubbard. (Exhibit 2, letter to Mr. E. C. Hubbard from Mr. Ralph J. Andrews, dated January 22, 1970, was read into the record and has been included at the end of these proceed- ings.) Mr. Bolch: Mr. Andrews, have you been present at the entire hear- ing this morning? Mr. Andrews: Yes, I have. Mr. Bolch: And you heard the testimony of Mr. Lee? Mr. Andrews: I heard it and was very much impressed with it. Mr. Botch: Do you still have the same opinion now that you had when you wrote these letters? Mr. Andrews: I do have. Mr. Bolch: That's all the questions I have. You may cross examine, Mr. Biesecker. Mr. Biesecker: No cross examination, Mr. Chairman. Mr. Bolch: Thank you, Mr. Andrews. Mr. Andrews: I'd like to make one other voluntary statement. Mr. Bosch: O.K. Mr. Andrews: At my age and as close to retirement as I am, I can make it without fear of any personal consideration. I want to express appreciation of the State for the fine work of this Board which is probably one of the most important of the present and certainly of the future needs of this State. I, also, want to say that I've watched your personnel, Mr. George Pickett, Earle Hubbard, "Nip" Page and others in operation on everything from the huge Coastal Plains Regional Develop- ment Commission, the Marine Science Council, the Apalachian Programs and even down to the small agencies. And I've seen them operate in ways in which you ab Board Members can certainly be proud. I certainly am and I want to express my gratitude and appreciation both to the Board and to the Staf . Mr. Bolch: Thank you very much, Mr. Andrews. Mr. J. H. Cornell. Chairman Johnson: Mr. Cornell, do you promise to tell the truth, the whole truth and nothing but the truth? Mr. Cornell: I do. Chairman Johnson: Take the stand. Mr. Botch: State, for the record, your full name, please, sir. Mr. Cornell: J. Harry Cornell. - 20 - . Mr. Botch: Mr. Cornell, where do you live? Mr. Cornell: Holly Springs, North Carolina. Mr. Botch: By whom are you employed? Mr. Cornell: The State of North Carolina, Wildlife Resources Com- mission, Mr. Botch: In what capacity? Mr. Cornell: I'm the Chief Fishery Biologist. Mr. Botch: In such capaci"y, have you had an occasion to review the application for Permit and the application for Variance filed by Duke Power Company in this matter? Mr. Cornell: I hive. Mr. Botch: Have you co:r,:;. to any ovnion concerning this applica .ion for Permit and Variance? Mr. Cornell: My opinion is restricted to the field of Fisheries= and I believe the construction of the projectwill be beneficial to the fish- ermen of North Carolina, representing some 20 some odd percent of the total population. Mr. Balch: I see Would you tike to make any other statement at this time? M . Cornell: I would like to expand on what Mr. Lee said about the fi hery. He pointed out that there would be some 650 acres of wafer that would be unaffected by temperature variance, essentially this lower arm and the upper parts of the other arms of the lake. Unaffected means that the water would be exactly the same temperature as if the reservoir were not there. Now the fishes that will be in this lake, that we will stock in it, at least as necessary, will be the sunfishes, large mouth bass, and possibly white bass. We will also stock threadfin shad in it as a forage fish. This is not a sportsman fish, but it is the basis of the food supply which provides for an optimum game fish population. The Centrarchids, that is the sunfishes and the bass have a lethal tempera- ture of approximately 95°. So in reviewing the temperature forecasts for the various parts of this Lake, it should be observed that temperayures less than 95° will provide good habitat for these warm water species. And that will vary, of course, with the different seasons of the year where the heat pollution will be added to the high summer temperatures. This 95° range will expand, but I believe it will never exceed approxi- mately half the lake. And as Mr . Lee pointed out, the warm water will be on the surface, but there will be suitable temperature for fish below the surface. So the fishing potential then of this lake will extend at all seasons from about here at this now arm, include this whole area of the lake (referring to the map) and, as Mr. Lee pointed out, the water coming back into the plant will be of normal temperature. So this will all be fish producing water. The only part that will not be, will be the immediate mixing zone in, I guess this is West Fork, I believe, where the wazm water comes out of the plant through the canal and, under most adverse circumstances, this small area here. During the rest of - 21 - the year, the only place where we will not expect to have good fish production is right here in the immediate mixing zone outside the plant. This has another favorable aspect so far as fish populations are con- cerned and that is the warm winter type temperature which will be main- tained by the effluent water. The threadfin shad, we have found over this last several years by its presence as a forage fish, will produce better game fish populations than a natural fish fauna can provide. The threadfin shad is an imported species from the lower Mississippi Valley and their lethal temperature, minimum temperature, is around 50 degrees, so when the water falls measurably below 50 degrees these fish will dip. However, with this warm water effluent we can stock threadfin shad in here and there will be survivors through the winter to replentish the lake for the next season. In the other lakes we have in the State with similar situations, we have found that we have much better game fish population if there's a source of warm water to carry our threadfin ,had over during the winter. So we would expect then that from two to three thousand acres depending on the season of the year, would provide opti- mum fish habitat in thi lake, for the production of game fish. This will be contra ted with the pre,ent fi hery resource in these creeks. I have looked up the record; on it. The fishing resource at the present time consists of gigging suckers in an early spring run. That's all. We will expect then that the sportsmen will lose their sucker run because the ackers cannot come up through the dam. We will expect them to gain from two Co three thou>and acres of excellent fishing water. I think the sportsmen of the State then ahould rea onably welcome the construction of this: reservoir. M Botch. Mr. Cornell, were you present when Mr. Lee testified? Mr. Corn 11: Yes, >ir. Mr. Bolch Were you present and heard the cross examination of Mr. Lee? M. . Cornell: Yes. Mr. Belch: Do you have any opinion about. .. . You heard him testi- fy abo t Le lower oxygen content in the hypolimnion? Mr. Cornell: Yes. The stratification of the reservoir is a per- fectly normal phenomenon and has nothing to do with the operation of the team pl<:ntU This same situation will be found in Lake Waccamaw, Mat- tamuskeet aid any of the natural lakes and has even been recorded in mud p ddles by :-some fine scientific measuring devices. It is a perfectly o mal phenomenon. Mr. Botch: I see. It's not increa ed any by the steam plant? Mr. Cornell: No, sir, because the warm water from the steam plant will float on the surface of the reservoir Mr. Belch: I see. Would the lowered oxygen content or the settling out of iron and manganese in these lower levels, adversely affect fish life? Mr. Cornell: The iron and manganese have no effect on the fish. That effects the water that may be withdrawn from it for domestic con- sumption. That's what turns white clothes black in the presence of soap - 22 - sud;, but it doesn't effect the fish. The fish are not going to be there anyway. In the characteristic normal hypolimnion, the decomposition of organic matter uses up the oxygen. And this hypolimnion is a layer of water that grows during the summer and the deoxygenated area expands as the bacteria use up the oxygen in the hypolimnion. Finally, the decom- position of Leaves, of any detritus, is a food for the bacteria until they use up all the oxygen. This has nothing to do with a steam plant as such. This is characteristic of normal waters. Mr. Bolch: I have no further questions. You may cross examine, Mr. Biesecker. Mr. Biesecker: I don't have any cross examination. Mr. Botch: O.K. Thank you very much, Mr. Cornell, Mr. Chairman, it has come to my attention that the Department of Water and Air Resourc..s has invited members of the general public to present whatever views they might have with regard to this application. I now request that the Chair inquire of the audience whether there are any persons present who wish to be heard. If there are, would they please come forward and confer with me. Chairman Johnson: Anyone like to be heard? Got any guests that have an opinion? Mr. Bolch: If not, Mr. Chairman, that concludes the case for the Staff and the Department, Mr. Biesecker: That concludes the evidence for the applicant, Duke Power Company. Chairman Johnson: Mrs. Wall, please Let the record show that six Members of the North Carolina Board of Water and Air Resources, including the Honorable S. Vernon Stevens, received this testimony; therefore, we will officially call this hearing closed. Excuse me, before I close the hearing, would you Attorneys wish to file additional briefs, findings of facts, etc.? Mr. Bosch, do you wish. .. Mr. Botch: The Attorney General does not wish to do so, but I under- stand that Mr. Biesecker may want some time to file proposed findings of facts including the law and a brief. Mr. Biesecker: Contrary to my previous discussion, Tom, I think now that we will not request permission to file proposed findings of facts and conclusions of law. We will let the record stand as it is com- posed at this stage. Chairman Johnson: Well, I'm delighted to hear both of you say that in order to get on with the business. In that case we will officially close this hearing and, Mr. Biesecker and, also, Mr. Lee, you know the Committee will consider all the evidence, the testimony given today, and prepare their proposed findings of fact included in the law. The proposed orders will be presented to the full Board of the final decision of this matter. I can't tell you exactly when the Board can make this decision. Mr. Lee, I know you are pushed for time. We brought in sufficient Members of the Board today to present the case and not have to go through this whole thing again. As soon as our Staff prepares the paper work, we will - 23 - forward it to the Board. You see six Members of the Board sitting here. You should get an answer in a reasonable length of time. I can't tell you when. Is there any further business? If not I believe it will be cess n order, slucOandr public continueathegis over, to meeting. (Theehearingrlunch adjourneddatome back after lunch 11150 a. m.) - 24 - PERSONS IN ATTENDANCE AT PUBLIC HEARING Pollution Control Committee Members Board Of Water And Air Resources *Mr. P. Greer Johnson, Committee Chairman Mr. S. Vernon Stevens, Jr., Chairman of the Board Mr. J. Nelson Gibson, Jr. Mr. W. Grady Stevens Mr. Raymond S. Talton Department Of Water And Air Resources Staff Members Colonel George E. Pickett *Mr. E. C. Hubbard *Mr. D. L. Coburn Mr. W. E. Knight Colonel D. E. McDonald Mr. T. H. Walker Mr. J. R. Taylor Mr. W. C. Mills Mr. Larry E. Davis Mr. A. A. Renn Mrs. Marjorie T. Carmichael Mrs. Jackie Wall, Recording Secretary Others *Mr. J. E. Biesecker, Attorney, Duke Power Company *Mr. William S. Lee, Vice President, Engineering, Duke Power Company Mr. Charles A. Dewey, Jr., Principal Environmental Engineer, Duke Power Co. *Mr. Ralph J. Andrews, Conultant, Department of Local Affairs *Mr. J. H. Cornell, Chief, Div. of Inland Fisheries, Wildlife Resources Comm. Mr. Robert B. Hazel, Asst. Director, Wildlife Resources Commission Mr. G. C. Goodard, Jr., Supe. Hydrologist, U. S. Geological Survey Mr. James F. Turner, Jr., Hydrologist, U. S. Geological Survey Mr. R. D. Stout, President, Southern Mapping (56 Engineering Company Mr. Ray E. Shaw, Jr., Supt. Water & Sewer Dept., City of Greensboro Mrs. D. G. Sharp, Chairman, Chapel Hill Water Resource State Board; representing N. C. State League of Women Voters Mr. H. M. Hunsucker, DDS Miss Lyndal Warren, Wilmington-Star Mr. Arthur Johnsey, Greensboro Daily News Mr. Bob Farrington, WPTF Radio Station Mr. Dick Hatch, United Press International Mr. Paul Jablow, Charlotte Observer Mr. Joe Roster, Winston-Salem Journal-Sentinel *Mr. Thomas Balch, Attorney General's Office Mr. Thomas Kane, Attorney General's Office *Participated in proceedings. Duke Power Company Belews Creek Steam Station Engineering Report November 17, 1969 ENGINEERING REPORT BELEWS CREEK STEAM STATION DUKE POWER COMPANY COOLING LAKE AND ASH SETTLING BASIN Charlotte N. C. Revised: November 17, 1969 • 1. INTRODUCTION This report presents engineering information in support of Duke Power Company's application for permits before the North Carolina Board of Water and Air resources covering a cooling lake, ash settling basin, and related dams for Belews Creek Steam Station. 2. DESCRIPTION 2. 1 Site Belews Lake, an artificial lake which will serve as the source and receptor of condenser cooling water will be formed by a dam located in southwestern Rockingham County and partially in southeastern Stokes County just north of the confluence of West Belews Creek with Belews Creek. The 3863 acre lake will be partially in Stokes, Rockingham, Forsyth and Guilford Counties. The 2286 mw coal-fired steam station will be located in the extreme southeastern corner of Stokes County on the West Belews Creek arm of the lake. The station will be about 16 miles northeast of Winston-Salm and about 15 miles north-northwest of the Greensboro-High Point Airport. Enclosed as a part of this application are prints of the following drawings, Belews Creek Steam Station, Units ##1 and #2: BC-1 Reservoir Map, Dated 11/17/69 bt.-c alte Tian, r% v i iii//o BC-3 Layout, Dam, Dikes and Spillway, rev 11/17/69 BC-4 Dam, Dikes and Spillway, Typical Details, rev 11/17/69 BC-17 Reservoir Area - Volume Curve and Hydraulic Data dated 11/17/69 2.2 Condenser Cooling Water Lake The lake will be impounded by a compacted earthfill dam approximately 3400 feet long with approximately 5400 feet of adjacent dikes. The lake at "full pond" elevation, 725 feet above mean sea level , has a surface area of 3863 acres. The unique geography of the lake affords advantages in providing several rather distinct zones within the lake. The warmed cooling water is to be discharged from the steam station into the upper reaches of the West Belews Creek arm and will flow in a southwesterly direction. After initial rapid cooling, the cooling water will flow through the canal across the pennisula and then northeasterly down the main Belews Creek arm of the lake around the pennisula returning to the station intake. Thus about 1000 acres at the northern end of the lake, including the remote 325 acre cove southeast of dam, are somewhat removed from the expected cooling water circuit. 2 2.3 Steam Station The two 1143 mw (1, 143,000kw) units will operate on a supercritical pressure cycle with a single reheat producing steam conditions of 3500 psig, 1000°F with reheat to 1000°F. A unit consisits of one 1143mw turbine-generator, a companion boiler, one steam condenser plus appropriate individual auxiliaries such as stack, electrostatic precipitators, pumps, etc. Condensers are designed for 18°F cooling water temperature rise using 1260 cfs cooling water flow per condenser as the normal operating mode during the March-November period. During December through February, the cooling water flow will be reduced to about 840 cfs and the temperature rise increased to 27°F for slightly less total heat rejection but faster heat dissipation in the cooling lake. Equipment will be installed to mechanically clean the condenser tubes. The steam station will be equipped with high-efficiency flyash collection equipment and sewage treatment facilities, both of which will be the subject of later applications for permits from the North Carolina Department of Water and Air Resources. 2.4 Estimated Cost $ 16,000,000 Cooling Lake $ 900,000 Ash Settling Basin $269,347,000 For Entire Project 3. EXPECTED WATER TEMPERATURES IN COOLING LAKE Water temperatures expected were calculated by methods published by C. J. Velz and Associates and checked by methods developed by research sponsored by the Edison Electric institute. Both of these methods were applied to actual measurements made on Lake Wylie near Duke's Allen Steam Station to develop correlation and con- firmation of procedures. Temperatures and other data were calculated for U. S. Weather Bureau normal , or long range, meteorological conditions as well as for the extreme weather conditions of record. The following conditions served as a basis for temperature calculations: a. Meteorological conditions were established as monthly averages of the Greensboro-High Point and Raleigh-Durham U. S. Department of Commerce Environmental Science Services Administration Airport weather stations. b. No reservoir cooling credit was taken for advection of heat due to water leaving or entering reservoir, or due to precipitation. c. Circulatory path of condenser cooling water was considered analogous to a river current and only 2050 acres of the 3863 acre pond were considered to afford cooling for temperatures in excess of natural temperatures. 3 d. Solar Insolation values were assumed to be the same as measured on Lake Norman in Catawba and Iredell Counties and as confirmed by U. S. Weather Bureau reports. e. During winter months, (December, January and February) the cooling water flow rate will be reduced to 2/3 normal for thermodynamic reasons resulting in slightly decreased heat rejection and 3/2 normal temperature rise through condensers. The results of the temperature forecast studies are presented in Tables 1 and 11 below. Reference to drawing No. BC-1 , Reservoir Map, will assist in interpretation of data for locations (A) through (E). TABLE I NORMAL CLIMATIC CONDITIONS MONTHLY AVERAGE FORECAST OF WATER SURFACE TEMPERATURES Steam Plant Outlet From Outlet Main Body Lake Into Steam Plant Temperatures Location of Lake Streambed Intake °F °F °F °F °F Month • (A) (B) (C) (0) (E) Jan 81 .0 67.0 51,0 45.0 54.0 Feb 83.0 68.5 51.0 48.0 c6.o Mar 82.0 73.5 61.0 55.0 64,0 Apr 88.5 79.0 68.5 64.0 70.5 May 97.5 88.0 78.0 73.5 79.5 Jun 103.5 93.5 84.0 80.0 85.5 Jul 106.0 96.0 86.5 83.o 88.o Aug105.5 9 95.5 86.0 82.5 87.5 Sep 99.5 90.0 80.0 75.5 81 .5 oct 91 .0 82.0 70.5 65.5 73.0 Nov 81 .5 73.0 60.0 53.5 63.5 Dec 82.0 68.0 52.0 45.0 55.0 Averages 91.$ 81.2 69.2 64.2 71.5 Note: Refer to Drawing BC-1. TABLE 11 EXTREME CLIMATIC CONDITIONS MONTHLY AVERAGE FORECAST OF WATER SURFACE TEMPERATURES Steam Plant Outlet Main Body Lake Into Steam Plant Temperatures Location of Lake Streambed Intake of of of of eF Month (A) (B) (c) (o) (E) 73.5 59.0 54.0 61.0 Feb 88.0 73.0 59.0 53.5 61.0 4 TABLE 11 (Con't) Month (A) (B) (C) (D) (E) Mar 87.0 78.5 66.5 61.5 69.0 Apr 92.5 83.0 72.5 68.0 74.5 May 101 .5 92,0 81.5 77.0 83.5 Jun 106.0 96.5 87.0 84.0 88.0 Jul 107.5 98.0 88.5 85.0 89.5 Aug 107.0 97.5 87.5 84.0 89.0 Sep 102.0 92.5 83.0 78.5 84.0 Oct 96.0 87.0 76.0 71 .0 78.0 Nov 86.5 76.5 65.0 59.0 68.5 Dec 87.5 73.0 58.5 52.5 60.5 Averages 95.8 85. 1 73.7 69.0 75.5 Note: Refer to Drawing No. BC-l. 4. WATER BUDGET AND STREAMFLOW RELEASES The three streams, East Belews Creek, West Belews Creek and Belews Creek, flowing into the impoundment are quite small and have a combined drainage area of about 78 square miles above dam. Records of USGS Gauging Station No. 2A0690.50 (later designated 2-0690.5) indicate a minimum seven consecutive days flow of 6.50 cfs for Belews Creek, recurring at 10 year intervals and 10,0 cfs at five year intervals. This gauging station, used periodically, is located .u..nn• nnn_i.-.1i ...01.. I+n1.... *An nrmmnenA d , (C.. � a �:nnnnirai C„rvnv 41a1-F,r Supply Paper 1761, dated 1963, pg. 91) Creation of the cooling lake and its heat dissipation function will increase evaporative water losses over those that would be experienced by the unimpounded stream. Conversely, elimination of evapo-transpirational losses from the impounded land will make 100 percent of rainfall over the lake's surface available for streamflow. The project will permit a five foot drawdown of the lake thus making available about 18,000 acre feet of storage to augment stream- flow during periods of low flows. Water budget calculations show that use of this storage will allow a minimum discharge from the lake of 10.0 cfs, which is equal to the minimum 5 year, 7 day flow. Any upstream withdrawals or diversions, over which Duke has no control are to be considered a part of the 10.0 cfs minimum discharge. Minimum releases from the lake will be measured by calibrated weir in the spillway outlet works. . It is estimated that the net effect of this impoundment and Its heat dissipation function will be to reduce the average streamflow from 95 cfs to 64 cfs. A stream-electric generating plant of similar capacity would effect a consumptive loss of about 60 cfs if the condenser circulating water were to be cooled exclusively by cooling towers. Thus the cooling lake will support 2286 mw of new electric generating capacity consistent with maximum conservation of average flows. The temperature of the water released from the lake is expected to closely approach the water temperature which would naturally occur in such an impoundment; however, the outlet works are designed to permit selective multilevel releases. Energy dissipation devices at the spillway outlet will provide mixing and aeration 5 of releases. Lake discharge water temperatures and flows are to be monitored by appropriate instrumentation reporting to the steam station operators. 5. ENVIRONMENTAL CONSIDERATIONS 5. 1 Station Design Factors The thermodynamic efficiency of the station is expected to be 39.75 percent (Heat Rate 8580 btu/net kwh). This high station efficiency results in a substatial reduction in coal and cooling water requirements per kilowatthour of useful output. After being cleaned by high-efficiency flyash precipitators, gaseous products of combustion will be discharged at a velocity of about 100 ft per second and a temperature of 260°F through two stacks at least 400 ft above station yard level . It is expected that SO emissions and flyash deposition rates will be well within the anticipated regulatory maximum ground level concentrations Conservative engineering practices have been observed in allowances for cooling water quantities and temperature decay rates. It is expected that this entire project will be compatible with the area environment. 5.2 Conformance With Water Quality Standards The streams to be impounded by the cooling lake are variously classified as Class C (fishing) or Class D (industrial). For each of these classifications, the Water Quality Standards adopted by the Board of Water and Air Resources on January 30, 1968, provide for water discharge temperatures not to exceed 7°F above ambient or 95°F maximum when measured "at such times and locations as to be representative of the receiving waters after reasonable opportunity for dilution and mixture" (quotation from Section II , Rule 3). Utilizing the mixing capability of the spillway outlet works, studies show conclusively that the outlet water temperatures from this cooling lake will comply with these Water Ouality Standards. The bases of the application for permit are .that measurements to establish degree of conformance with water quality standards shall be taken where discharges from the cooling lake re-enter the stream bed of Belews Creek, and that criteria representative of the naturally occuring temperatures of lake discharges, free of steam station influences, shall be deemed benchmark data for compliance. Water temperatures are expected to be consistent with the above water quality standards outside the boundary of the zone of mixing and heat dissipation. The waters outside this zone include the three headwater arms of the lake lying upstream of the railroad crossings of West Belews Creek, Belews Creek and East Belews.Creek respectively plus the cove lying southeast of the dam. Although not expected, should the forecast temperatures of Tables 1 and Il prove in substantial error, sites have been reserved on the cooling lake for as many as two future floating skimmer walls which would divert warmed surface waters into backwater coves to increase effective cooling surface. 6 The temperature rise through condensers, the water discharge temperatures, and the expected rates of heat dissipation from the lake are consistent with Duke's ex- perience of up to 40 years at nine other steam stations where no harmful effects on ecology have been observed. 5.3 Water and Air Duality Assurance The lake will be included in Duke Power Company's present comprehensive limnological surveillance and study program. Thisprogram provides periodic surveys of water chemistry, temperatures, sanitation and mosquito control parameters under the guidance of recognized consultants in this field. Studies in depth or of expanded scope are made when the surveillance program, or other interests, deem them necessary. Also, as is our present practice, all major equipment in the station, including air pollution control apparatus, will be field tested to assure initial quality of performance, and periodically tested therafter to insure satisfactory performance. 5.4 Fish and Wildlife Values A 1968 N. C. Wildlife Resources Commission publication, "A Catalog of the inland Fishing Waters in North Carolina," states on pages 103 and 104, as follows, in summary, regarding Belews Creek: ..�. ��___•� _ `' c f:nrnr:,) P..mar4¢ Name Ecological Sanitation Belews Largemouth Fishing Fishing pressure very light - sunfish, (1-24) "C" catfish and suckers. West Robin- Fishing Ditto (Little) warmouth "C" Belews (1-24-1) West Dace Fishing No fishing significance except spring Belews Trickle "C" sucker gigging. East Robin- Fishing Fishing pressure ranges from "light ' Belews Warmouth "C" to "no" fishing significance except for (1-24-2) spring sucker gigging. Due to the configuration of the lake, a large arm lying southeast of the dam is essentially removed from involvement in the station water cooling circuit. It is expected that biota, particularly fish populations, will carry out breeding activities in this most distant and isolated arm if other areas of the lake occasionally prove to be unsuitable. 7 Formation of the impoundment should stabilize the biota under conditions similar to those found in small lakes and reservoirs of Piodmont North Carolina. The proposed lake should result in good fishing compared to the present insignificant fishing in these waters. This should be a significant benefit to sportsmen in the area along with the associated improvement in local economy. 5.5 Public Recreation It is expected that much of the cooling lake will be suitable for public recreation and the cove southeast of the dam will be fully suitable for public recreations without noticeable influence from the steam plant. On the shore of this cove, launching ramps, parking areas, and other recreational facilities will be provided by Duke for enjoyment of the public. These facilities will be planned in cooperation with the N. C. Wildlife Resources Commission and the North Carolina Recreation Commission. Because of the limited suitable shoreline available, Duke has no present plans to lease individual lots on Company-owned land for private use. 6. ASH SETTLING AND STORAGE BASIN A 350 acre ash settling and storage basin will be constructed in Stokes County about 6000 ft northwest of the generating station. Both bottom and flyash from the station boilers will be conveyed hydraulically to the basin. Estimated sluice water flow for the ultimate plant is 5 mgd, After settling of suspended solids, sluice water will be returned to cooling lake and outlet works at other Duke generating stations, it is expected water returned to reservoir will have average Ph of about 10, alkalinity (ppm CaCO3) of about 500 maximum, and total dissolved solids (ppm) of about 570 maximum. It is expected that removal of suspended solids will be almost complete (99 percent plus) , with the basin effluent normally containing less suspended matter than the raw service water pumped from the cooling lake for ash sluicing. The storage capacity of the basin will be approximately 20,000,000 cubic yards, which is adequate to serve the ultimate plant for about 25 years. The estimated cost of basin, dike, and outlet works is $700,000. For typical section through ash basin dike, see Drawing BC-4, 7. DESIGN OF DAMS AND DIKES Belews Creek Dam, saddle dikes, and ash basin dike will be constructed of compacted earth fill selected from suitable native materials, chiefly clayey silts and silty sands. An extensive field arta laboratory investigation of foundation con- ditions and available fill materials has been conducted. This work included soil borings, rock core drilling, opening of test pits, field and laboratory classification of soils, and a wide range of laboratory testing procedures. Using well-established stability analysis procedures, the test results were used in the detailed design of the earth structures. State of North Carolina Utilities Commission Order-July 15, 1969 j'afide of artli 0laralina gtiiities Cannnission �zlei�ti DOCKET NO. E-7, SUB 110 BEFORE THE NORTH CAROLINA UTILITIES COMMISSION In the Matter of Application of Duke Power Company for Certificate of Public Convenience and Necessity under Chapter 287, 1965 ) Session Laws of North Carolina (G. S. 62-110.1) Authorizing Construction of New ) Generating Capacity on Belews Creek in ) ORDER GRANTING CERTIFICATE Stokes County, North Carolina ) or PUBLIC CONVENIENCE AND moss= BY THE COt4[ISSION. This proceeding was instituted on May 24 1969, by the filing of Application by Duke Power Company fog Certificate of Public Convenience and Necessity under G. S. 62-110,1 to construct new generating capacity on Belews Creek in Stokes County, North Carolina. By Order of the Commission dated May 19, 1969, public notice has been duly published once a week for four (4) successive -.-asks in The Greensboro Daily News and The Winston-Salem J9 rnal Sentinel, daily newspapers of general circulation in Stokes County, North Carolina, as appears from the Affidavits of publication now on le in this cause. No complaint or written protest to the granting of the request of Duke Power Company ("Company") for a Certificate of is Convenience and Necessity to construct new electric generating ilities on Belews Creek in Stokes County, North Carolina, have beeil Cited within the time specified in such notices. The Application has considered and determined on the basis of the verified representa- tions in the Application and the public records on file with the Commission. From such the Commission makes the followings FINDINGS OF PACT 1. The Company is a corporation organized and existing under the laws of the State of North Carolina, and is a public utility operat- ing in North and South Carolina where it is engaged in the business of generating, transmitting, distributing and selling electric power and energy. %Th 4e722,800 kw of base load, steam electric generating the following peaking capacity 4 combustion turbine 'ese and hydro-electric generating capacity of 862,359 kw for a eexhined e otal generating capacity of 5,954,159 kw, and the Company has ender construction 3,340,000 kw of steam electric generating capacty and e 5,000 kw of hydro-electric generating capacity. 3. The Company's facilities are directly interconnected the neighboring electric utilities and the Company ie e member of the CARVA Pool. 4. The Company needs and proposes to construct two steam electric generating units, each with a nominal rating of about 1050 mw and expected capability of 1144 mw net, to be located et e now station aeat eelews Creek in Stokes County, North Caroliee f:AL- and 7- .7 additional generating capaeety for Its allocated 61.e. 2a.a.VA Pool requirements. 5. The Company's estimated firm load peak demand for the aemmer 974 plus requirements for reserve capacity, will reece aelexte ly 10,900,000 kw. These forecasts make it necessary for tha Company to install the new generating capacity described above in order to meet this anticipated load and maintain an adequate reserve margin ee generating capacity. These steam electric generating units eenresent the most reliable and economical type of base load capacity eeat can he brought into service in time to meet the projected 6, The Company has financial ability to pay foe eeetreeiien and installation of the new generating units which are presently ted to cost $269,347,000.00. CONCLUSIONS The Commisnion finds and concludes that public convonforwo and necessity require construction and installation by the Company of the new generating capacity hereinafter described, in that (a) such c.3cilities will, provide the generating capacity to me load forecast of the Company for the years 1974 and facilities are the most economical and dependable typ, capacity which the Company can provide in time to mee . 3 ioad; and (c) such facilities are required to maintai 3 pendabl+k electric service for the Company s provide its proportionate share of increased generating capacity rte: irement for the operation of the CARVA Pool. IT IS, THEREFORE, ORDERED: 1. That Duke Power Company is authorized to install and operate on Belews Creek in Stokes County, North Carolinat two steam electric generating units, each with a nominal rating of 1050 mw and expected capacity of 1144 mw net. Each generating unit will consist coal-fired boiler equipment, a steam turbine, an electric generator and the necessary auxiliary equipment. The output of the generating units will be delivered through step-up transformers to the Company' . 230 kv system. An artificial lake will be constructed by impoundment of Belews Creek to provide a source of cooling water for the generating units and to effectively dissipate heat from the stations,s condensers. 2. That this Order constitutes a Certificate of Public ..- :venience and Necessity for the installation and operation of the -4-eve-described facility. By Order of the Commission. This the /5 day of July, 1969. NORTH CAROLINA UTILITIES COMMIS:nor +fl�tA? 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