NC0025305_Renewal Application_20160203

THE UNIVERSITY
of NORTH CAROLINA,
C H A Y F.I HILL VICE CHANCELLOR FOR FINANCE AND ADMINISTRATION
300 SOUTH BUILDING
CAMPUS BOX 1000 TEL:[phone]
CHAPEL HILL,NC 27599-1000 FAX:[phone]
www.unc.edu/financeadmin
January 15, 2016
RECEIVED/NCDFQ/Dyyp
Mr.Joe Corporon FF-3 ' 3 2016
Division of Water Resources
WQ Permitting Section - NPDES Water Quality
1617 Mail Service Center Permitting Section
Raleigh, NC 27699-1617
Subject: Application for Permit Renewal
NPDES Permit No. NC0025305
The University of North Carolina at Chapel Hill
Cogeneration Facility
Dear Mr. Corporon:
The University the North Carolina at Chapel Hill ("University") is hereby requesting renewal of
NPDES Permit No. NC0025305, issued for the treatment and discharge of wastewater from the
University's Cogeneration Facility. Please note that the University operates the process wastewater
treatment facility at Cogen in a non-discharge (i.e., to the stream) mode with all treated process
wastewater being discharged to the Orange Water and Sewer Authority (OWASA). On those
occasions when OWASA does not have the capacity to accept the treated process wasterwater
stream or in an emergency, the University retains the option to use outfall 001 to discharge to the
stream. There have been no occasions since April 3, 2001 when the University has discharged from
the facility to the receiving stream. The original and two copies of the application for renewal are
enclosed.
If you have any questions or need additional information, please contact Timothy L. Aucoin at 919-
962-1309 or by email at aucoin a,;energy.unc.cdu .
Sincerely,
Mat ew M. Fajack
Vic, Chancellor for Finance and Administration
cc: Philip Barner
William T. Lowery II
Mal Donohue

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
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 NC0025305
If you are completing this form in computer use the TAB key or the up - down arrows to move from one
field to the next. To check the boxes, click your mouse on top of the box. Otherwise,please print or type.
1. Contact Information:
Owner Name The University of North Carolina at Chapel Hill
Facility Name Cogeneration Facility
Mailing Address 302 South Building CB #1000
City Chapel Hill
State / Zip Code North Carolina 27599-1000
Telephone Number 919-962-3795
•
Fax Number 919-962-0647
e-mail Address [e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road 575 West Cameron Ave.
City Chapel Hill
State / Zip Code North Carolina 27599-1858
County Orange
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 The University of North Caroli .. at Chapel Hill, Cogeneration
Facility
Mailing Address 575 West Cameron Avenue CB #1858
City Chapel Hill
State / Zip Code North Carolina 27599-1855
Telephone Number (919-962-1167)
Fax Number (919-962-4376)
4. Ownership Status:
Federal D State ® Private ❑ Public ❑
{00089509.DOC}Page I of 4 Version 5/2012

•
NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
5. Type of treatment plant:
® Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
❑ Ion Exchange (Sodium Cycle Cationic ion exchange)
❑ Green Sand Filter (No sodium recharge)
❑ Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener ❑
6. Description of source water(s) (i.e. groundwater, surface water)
Stormwater, ground water, and process water
7. Describe the treatment process (es) for the raw water:
Detention ponds are designed to control sediment.
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Attached Figure F-1provides a water balance schematic for the UNC Cogeneration Facility. The
principal wastewater generation processes are threefold: (1) an estimated average value of
15,000 gallons per day (gpd) of potable water from miscellaneous facility uses, (2) an estimated
average value of 12,000 gpd of stormwater run-off from the coal storage pile, and (3) an
estimated average value of 28,600 gpd of stormwater run-off from the fuel oil containment area
and general process area. Collectively, these flows represent an estimated average value of
approximately 55,600 gpd of low strength wastewater treated by the on-site system. All sanitary
wastewater is discharged directly to the local publically-owned treatment works, the Orange
Water and Sewer Authority (OWASA).
Major components of the Cogeneration Facility process wastewater system include the following:
An oil/water separator, equalization basins, caustic rapid mix tank, polymer feed system, two
settling basins, acid rapid mix tank, Parshall flume (outfall 001), a stormwater detention pond
on the west side of the site (outfall 002), and a stormwater detention pond on the east side of the
site (outfall 003).
The r^generation Facility operates the process wastewater treatment facility as a non-discharge
facility with the option to discharge to the stream in an emergency situation if OWASA (local
POTW) is unable to accept the wastewater flow.
9. Number of separate discharge points: 1 (3 outfalls to common point)
Outfall Identification number(s) Treatment Facility (001), West SW pond (002), East SW pond
(003)
{00089509.DOC}Page 2 of 4 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
10. Frequency of discharge: Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: N/A Duration: N/A
11. Plant design potable flowrate .321 MGD
Backwash or reject flow .320 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude): unnamed tributary to Morgan Creek, Latitude 35 deg 53 min 38 sec-
Longitude 79 deg 3 min 43 sec
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Alum / aluminum sulfate Yes No X
Iron sulfate / ferrous sulfate Yes No X
Fluoride Yes No
Ammonia nitrogen / Chloramines Yes No X
Zinc-orthophosphate or sweetwater CP1236 Yes No X
List any other additives below:
Nalclear(R) 7763-Flocculant
Sulfuric Acid
Sodium Hydroxide
14. Is this facility located on Indian country? (check one)
Yes ❑ No
15. Additional Information:
• Provide a schematic of flow through the facility, include flow volumes at all points in
the water treatment process. The plan should show the point[s] of addition for
chemicals and all discharges routed to an outfall [including stormwater]. Please see
diagrams F-1 and F-2 included with this application.
• Solids Handling Plan- The sludge disposal is described in the sludge management letter
included with this application.
16. NEW Applicants
Information needed in addition to items 1-15:
• New applicants are highly encouraged to contact a permit coordinator with the
NCDENR Customer Service Center.
Was the Customer Service Center contacted? ❑ Yes ❑ No
(00089509.DOC}Page 3 of 4 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
• Analyses of source water collected
• Engineering Alternative Analysis
• Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. 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.
Matthew M. Fajack Vice Chancellor for Finance and Administration
Printed name of Pe son Signin• Ti -
11110
/ r
Signatur- %f ' 'c.rlt Date
North Carolina G; eral Statute 143-215.6(b)(2)provides that Any person who knowingly makes any false statement representation,or certification in any application,
record,report,p-n,or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that
Article,or who Isifies,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.)
{00089509.DOC}Page 4 of 4 Version 5/2012

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NPDES PERMIT WATERFLOW DIAGRAM
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SUPPRESSION CONTAINMENT
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PROCESS AREA Revised December 2015
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PUMPS SEAL AND WASHD OWN a.E[j #
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ASH HANDLING, COAL PILE
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TANK BASIN SEPARATOR
(15,000 gal) (7,100 gal) (4,267 gal) TOTAL (1000 GAL. OIL
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PAC
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CO(T0OLgT)NK {6TANKal) (26,300 gal EACH) TANK WASTEWATER TREATMENT SYSTEM
(3,804 gal)
UNC-CHAPEL HILL COGENERATION FACILITY
CHAPEL HILL, NORTH CAROLINA
SCALE APPROVED BY : DRAWN BY:J.K.S.
AS NOTED
DA OCT. 5, 1998 DESIGNED BY : REVISED
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._
;,
Nic PAT MCCRORY
,,
DONALD R. VAN DER VAART
S. JAY ZIMMERMAN
Water Resources
ENVIRONMENTAL QUALITY I
February 4, 2016
Matthew M. Fajack
UNC at Chapel Hill
Cogeneration Facility
302 South Building CB#1000
Chapel Hill, NC 27599-1000
Subject: Acknowledgement of Permit Renewal
Application No.NC0025305
Cogeneration Facility
Orange County
Dear Permittee:
The Water Quality Permitting Section has received your permit renewal application on February 03,
2016. A member of the NPDES Unit will review your application. They will contact you if additional
information is required to complete your permit renewal. 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. Please respond in a timely manner to
requests for additional information necessary to complete the permit application.
If you have any additional questions concerning renewal of the subject permit, please contact Yang
Song at 919-807-6479 or [e-mail].
Sincerely,
W reAA, T1n-COV-ord/
Wren Thedford
Wastewater Branch
cc: Central Files
NPDES
Raleigh Regional Office
ii
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-807-6300