NC0081957_Renewal Application_20180727

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ROY COOPER NORTH CAROLINA
GovernorEnvironmental Quality
?V1ICHAEL S_REGAN
Secretary
LINDA CULPEPPER
Interim Director
August 21, 2018
Eli Hopson
Cube Yadkin Generation LLC
2 Bethesda Metro Ctr
Bethesda, MD 20814
Subject: Permit Renewal
Application No. NC0081957
Narrows Powerhouse
Stanly County
Dear Applicant:
The Water Quality Permitting Section acknowledges the July 27, 2018 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit.The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely,
if0ifLM
� r.
Wren Thetford
Administrative Assistant
Water Quality Permitting Section
cc: Central Files w/application
ec: WQPS Laserfiche File w/application
1/-1---:11a. Q
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-807-6300

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NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number NC0081957
Please print or type.
1. Contact Information:
Owner Name Cube Yadkin Generation LLC
Facility Name Narrows Powerhouse
Mailing Address P.O. Box 575
City Badin
State / Zip Code N.C./28009 RECEQV5)11)E14RI®\11R
Telephone Number 704-422-5715 ,}UL Zo$
Fax Number 704-576-7956 Water Resgectron
e-mail Address [e-mail]
%%tt+'
2. Location of facility producing discharge:
Check here if same as above 0 peril
Street Address or State Road 37720 Pine Street
City Albemarle
State / Zip Code N.C./28001
County Sta n ly
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name Cube Yadkin Generation LLC
Mailing Address P.O. Box 575
City Badin
State / Zip Code N.C./28009
Telephone Number 704-422-5774
Fax Number 704-422-5776
Page 1 of 5 C-MI 10108

NPDES PERMIT APPLICATION — SHORT FORM C — Minor Industrial
Minor industrial, manufacturing and commercial facilities.
4. Ownership Status:
Federal 0 State 0 Private ® Public 0
5. Standard Industrial Classification (SIC) code(s): 4911
6. Number of employees: 4
7. Describe the treatment system List all installed waste treatment components with capacities,
describe the processes that generate wastewaters. If the space provided is not sufficient attach a
separate sheet of paper with the system description.
See Attached Flow Diagram
8. Is facility covered under federal effluent limitation guidelines? No ® Yes 0
If yes, specify the category?
9. Principal product(s) produced: Electricity
Principal raw material(s) consumed: N/A
Briefly describe the manufacturing process(es):
Hydroelectric Generation
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Page 2 of 5 C-MI 10/08

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NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
10. Amount of principal product produced or raw material consumed
(List specific amounts consumed and/or units of production over the last three years)
Product Produced or Raw Material Product Produced or Raw Material
Consumed Consumed
(AVERAGE) (PEAK)
per Day 978 MWhr 2,592 MWhr
per Month 29,782 MWhr 78,840 MWhr
per Year 357,390 MWhr 946,080 MWhr
11. Frequency of discharge: Continuous ® Intermittent 0
If intermittent:
Days per week discharge occurs: Duration:
12. Types of wastewater discharged to surface waters only
Flow
Discharge
(GALLONS PER DAY)
Sanitary - monthly average N/A
Utility water, etc. - monthly average N/A
Process water - monthly average 20,160
Stormwater-monthly average N/A
Other-monthly average
Explain: Cooling Water 1,903,280
Monthly Average 1,923,440
total discharge (all types)
13. Number of separate discharge points: 7
Outfall Identification number(s) 001, 002,003,004,005,006, 007
14. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Yadkin River latitude:35°25'08.32"N; longitude:80°05'30.11"W
Page 3 of 5 CM 10/08

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
15. Effluent Data [for new or proposed discharges]
Provide data for the parameters listed. Temperature and pH shall be grab samples,for all other parameters 24-hour
composite sampling shall be used.If more than one analysts is reported, report daily maximum and monthly average.
If only one analysis is reported, report as daily maximum.
NOTE:Permittees requesting renewal should complete the table ONLY for the parameters
currently monitored. Summarize the past 3 years of effluent data.
Parameter Daily Monthly Units of
Maximum Average Measurement
Biochemical Oxygen Demand (BOD5) N/A N/A N/A
Chemical Oxygen Demand (COD) N/A N/A N/A
Total Organic Carbon N/A N/A N/A
Total Suspended Solids N/A N/A N/A
Ammonia as N N/A N/A N/A
Temperature (Summer) 31.8 28.9 Celsius
Temperature (Winter) 17 11.7 Celsius
pH 7.6 7 Units
Fecal Coliform (If sanitary waste is N/A N/A N/A
present)
Total Residual Chlorine (if chlorine is N/A N/A N/A
used)
16. List all permits,construction approvals and/or applications (check all that apply and provide permit
numbers or check none if not applicable):
Type Permit Number Type Permit Number
Hazardous Waste (RCRA) N/A NESHAPS (CAA) N/A
UIC (SDWA) N/A Ocean Dumping (MPRSA) N/A
NPDES NC0081957 Dredge or fill (Section 404 or CWA) N/A
PSD (CAA) N/A Other N/A
Non-attainment program (CAA) N/A
17. List any chemicals that may be discharged (Please list and explain source and potential
amounts.)
Oil &Grease(Outfall 007)-previous 3 years of sample results were less than detection limits(4.9 mg/L
for 2015 and 5.2 mg/L for 2016 and 2017).
Page 4 of 5 C-MI 10/08

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
18. Is this facility located on Indian country? (check one)
Yes 0 No lEI
19. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
Paul Tran South East Regional Manager
Printed name of Person Signing Title
--7 ) 2-a I 1 V
Signature f Applicant Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than$25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
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Page 5 of 5 C-MI 10/08

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GEL (Engineering of NC INC PROJECT cube00217
an affiliate of THE GEL GROUP INC 2700 sumner Boulevard CUBE YADKIN GENERATION LLC SITE LOCATION FIGURE
NARROWS POWERHOUSE MAP
ENVIRONMENTAL•ENGINEERING o SURVEYING Suite 106
Raleigh.NC 27616 STANLY COUNTY,NC 1
919.544 1100
problem solved wwwgelcom DATE 06/25/2018 DRAWN BY TJP APPRV.BY KDM

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NARROWS POWERHOUSE
NPDES PERMIT NO NC 0081957
Outfall#004
Accumulated Stormwater
Yadkin River from Sump
600 Gal/Day
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NARROWS NARROWS NARROWS NARROWS
Unit One Unit Two Unit Three Unit Four
Scroll Case Scroll Case Scroll Case Scroll Case
I I I I
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Unit One Units 1,2,3&4 Unit Two Units 1,2,3,8 4 Unit Three Unit Four
Generator Thrust Bearing Generator Turbine Wheelpits, Generator Generator
Cooling Water Cooling Water Cooling Water and floor drains Cooling Water Cooling Water
432,000 Gal/Day 172,400 Gal/Day 432,000 Gal/Day 2 880 Gal/Da 432,000 GalfDay 432,000 Gal/Day
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Inspection All Units Draft
Sump Tube Leakage
17,280 GallDay
Powerhouse
Sum
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Outfall#001 Outfall#002 Outfall#006 Outfall#003 Outfall#005 Outfall#007
Into Yadkin Into Yadkin Into Yadkin Into Yadkin Into Yadkin Into Yadkin
River River River River River River
Unit One Generator Unit Two Generator Unit Three Generator Unit Four Generator
Discharge/24 His Dischanle124 Hrs Discharge/24 Hrs Dlscharge124 Hrs
1,379,694,400 gals 1,357,257,600 gals 1,583,452,800 gals 1,357,257,600 gals
"Outfall 003 consists of two separate discharges from a common sump