NC0045292_Renewal (Application)_20151124

of1&a4atn
P. O. Drawer 357
201 South Main Street
Graham, North Carolina 27253
Tel- [phone]/Fax: [phone]
November 17, 2RttEIVED/DENR/DwR
Mr. Tom Belnick, Supervisor
NCDEQ \DWR NOV 4 2015
Point Source Permitting Water Quality
1617 Mail Service Center Permltting Section
Raleigh, NC 27699-1617
RE: Renewal for NPDES Permit No. NCO045292
City of Graham, Alamance County
Dear Mr. Belnick:
The City of Graham request renewal for NPDES Permit No. NCO045292 for the
operation of Water Plant residuals lagoons at the Graham-Mebane Water Treatment
Plant. Please find enclosed the following required items in the City's application
package.
1. This cover letter and two copies.
2. The original and two copies of the signed application including facility location
map and process schematic.
3. Three copies of Authorized Representative delegation letter.
4. One signed original and two copies of the narrative description of the Sludge
Management Plan for the facility.
Please call me at 336.570.6721 if you have any questions or need additional
information regarding this application package.
Sincerely, ,yy�
Tonya A. Mann
Utilities Director
Cc: Frankie Maness, Manager, City of Graham

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 NC0045292
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 City of Graham
Facility Name Graham-Mebane Water Treatment Plant
Mailing Address P.O. Drawer 357
city Graham . RECEIVEDIDENRIDWR
State / Zip Code NC, 27253 a ��
Telephone Number [phone]
Fax Number [phone] WBM1011
�Prmittjn9 Sect
e-mail Address [e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road 1824 U.S. Hwy 70
City Mebane
State / Zip Code NC, 27302
County Alamance
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 City of Graham
Mailing Address P.O. Drawer 357
City Graham
State / Zip Code NC, 27253
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public
Pagel of 3 Version 5/2012

J
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)
Surface Water, Graham-Mebane Lake
7. Describe the treatment process(es) for the raw water:
Coagulation, Flocculation, Sedimentation, Filtration, and Disinfection
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Wastewater consist of filter backwash, filter rewash, and settleable solids removed from the
sedimentation process. Wastewater is dischrged into three (3) 500,000 gallon lagoons,
solids settle & clear water discharged to receiving stream.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: 7 Duration: 45 min. Backwash, 15
min rewash, 60 min sludge collection.
11. Plant design potable flowrate 12 MGD
Backwash or reject flow 0.275 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Back Creek
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Alum / aluminum sulfate No
Page 2 of 3 Version 5/2012

✓ NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Iron sulfate / ferrous sulfate Yes
Fluoride Yes
Ammonia nitrogen / Chloramines Yes
Zinc-orthophosphate or sweetwater CP1236 No
List any other additives below:
Polymer, Sodium Hypochlorite, Sodium Hydroxide, Corrosion inhibitor,
Powdered Activated Carbon.
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].
Solids Handling Plan
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
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.
Ton a A. Mann Utilities Director
Printed name of Person Signing Title
/ //17
Sign re of 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.)
Page 3 of 3 Version 5/2012

�r : ' "-� {Jr ;. I 1 `—��.•'�-`/` ^ �'�;� •4�- %/� ,r- Vii;•`r�r t�:�;'`_• � �J�
`•`�� �7�- -_- ` .� 1,.,5,' -~s. t� _r :�'`�• � jt�jr \ V,
9 l-_'-'�"`-cE,.'_ .,,-./'rte'".'-n` ,' r.� -• r /5�b• r �,i �Y;. n `L�?';��%` "J t_: � �L�.-�1�
Discharge Location =`
— _� ..�:�-��';-gip�` - ��. �, //;� -_.r.�r•� '•�- �, �� -
41
'�._ �__7__� _•gym=..,rJ'' - ���° :��� �� - �' ' - _,�-"-_� _ - � `-�
6 v� - _ .''�' sac .�"' - � ',� _ r i-__-��,-= .�•(^^:1 ���'�-6 �''�1
h+ - •1 �'���}'�r`7.%• J= = r• �' � _ t=om-- s_,l••J - i. � L_t
x 1
�•��~ -� * / � .�n_ �:r Jr.. •�5�•., rte. '`- - - - Jam_ T�`� +�� /�% �, -
_ = -, V.
--
Ji
/,
Facility Information :_
Facility ��!_ -,�, -�.�:.�
_ .c--�-=
Lanhrie: s6 05'5(T Suh-Basin 0s-06-02 Location
ry
fl-w rrde: 79°20'IT
Quad Name Mebane
St-earn Class C-NSW City of Graham-Graham/Mebane WTP
R•ereiyinv ST�m Back Cre° No
h rth AlNCW45�2 I
amance County

Process Schematic
Graham-Mebane WTP
Process Schematic Ofh-8/05)
Itaw Pnmps
3 x 6.0 MGD Graham-Mebane Lake 650
Design Cap. 12 MGD 1 x 3.0 ac-250 Bil gal
Av.,,.Production 4.5 MGD
Built 1976 Intake
Expanded 2001-03
7 cl4-IS
Inclined NaOH
plata----, F pt G - NaOH
r
Polymer(opt)
<_ Ftocculator AmNO (opt)
E- r i c ; NaOCI(opt)
NaOH � Sedimentation Polymer'_-
NaOCI ��� Cv//ec6onWeirs t
- -' E- Flash Muer
(ea.flit.)
E--
�o00�cw
Flocculator
Aux GenSet Sedimentation
Full Site Cepacfty hers 4
Elev.
- Tank
i CT
NaOH
I NaOCI
I H?SiFt i / Finished Pumps
' 3 x 4.0 MGD-Graham Dist
Phosphate_ 3.0 MG 3.0 MG
RK�w�cNF�} 2 x 2.5-Mebane Svstem
j - 1 x 3.5-Mebane
NaOCI Finished Water Storage
t �
Ammonia Ammonia(opt) i
j NaOCI
I
j -►.--.— Supernate to Back Creek
7- r2-F— �—
...... — '—' — '— Sludse to Land Application
B/W k SludZe Lagoons
0.5 MG each
DENR 38W(Fevised 9-97) Side B
Public water supply Section(Review 9-(1(1)

P O Drawer 357
201 South Main Street
Graham, North Carolina 27253
Tel. [phone]/Fax: [phone]
November 2, 2015
.lay Zimmerman, Director
NCDI Q, Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Dcar Mr. Zimmerman:
In compliance with permitting requirements all applications, reports, or
information submitted to the Director are to be signed by the City Manager or his duly
authorized representative. Additionally regulations state that if a duly authorized
representative is designated, it must be done in writing to the Director by the City
Manager.
By this letter, the City of Graham is notifying the Division of Water Quality that
this authority to sign as "Permittee" is given to the individual holding the position of
Utilities Director. The individual currently in this position is Tonya A. Mann. In the
event the position becomes vacant, the City Manager will sign until the position is filled.
This authority is given for the following permits currently issued to the City of'
Graham.
NI-IDES Permit # N00045292 (Graham-Mebane Water Treatment Plant)
NPDGS Permit # NCO02121 1 ( Graham Wastewater "Treatment Plant)
Permit # NCG 1 10021 (Wastewater Treatment Plant Stormwater)
Permit # WQ0003824 (Land Application)
Permit # WQCS00065 (Collection System)
If you have any questions, please call me at 336.570.6700 or write to my attention
to the address above.
Sincerely,
Frankie Maness
City Manager
Cc: NPDES Point Source Unit
PERCS Unit
Stormwater and General Permits Unit
Aquifer Protection Section

l�
RESIDUALS MANAGEMENT PLAN
1
GRAHAM-MEBANE WATER TREATMENT PLANT
NPDES PERMIT No. NCO045292
The Graham-Mebane Water Treatment Plant uses three 500,000
gallon lagoons to settle and store the periodic discharge of residuals from the
water treatment process. Two lagoons have earthen sides with concrete
bottoms and one has concrete sides and earthen bottom. The supernatant is
discharged to Back Creek in accordance with our current NPDES Permit.
The Ferric residuals are removed at approximate four to six month
intervals. The City has a contract with Synagro, Inc. to remove the residuals
from the lagoons. The residuals are pumped into 6500 gallon tanker trucks
and hauled off to be land applied. The City has its own farm and operates a
land application program in accordance with our Non-Discharge Permit,
WQ0003824. There are currently 58.2 acres permitted for land application.
The Ferric Residuals are surface applied and co-mingled on the fields with
the BioSolids generated from the City's Wastewater Treatment Facility in
accordance with the permit restrictions.
A fescue cover crop is maintained on the fields and is harvested and
used for cattle feed. Fields are maintained and crops harvested in
accordance with the permit requirements.
Nutrient and metal loadings and application rates are calculated and
reported in accordance with WQ0003824 requirements.
All land application activities are performed in accordance with the
WQ0003824 Non-Discharge Permit requirements and EPA 40 CFR Part 503
federal regulations.
Tonya A. Mann
Utilities Director
City of Graham