NC0084549_Renewal (Application)_20141024

•
(Cfb RECEIVED/DENRIDWR
CHARLOTTE.. NOV 0 3 2014
Water Quality
Permitting Section
October 24, 2014
Division of Water Resources
WQ Permitting Section - NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Renewal NPDES Permit# NC0084549
Franklin Water Treatment Plant
Mecklenburg County
WQ Permitting Section,
In accordance with our permit we are requesting renewal prior to our expiration date of
May 31, 2015. Enclosed is our NPDES Permit Application Short Form C for the renewal of
NC0084549 for the Franklin Water Treatment Plant.
Also attached to the Short Form C are:
Solids Handling Plan
y Plant Flow Schematic
Outfall /discharge location
If you have any questions, please contact me at 704-399-2426 Extension 222 or Randy
Hawkins at 704-201-8344.
)0i/
Sincerely,
,,)XL)
John Huber
Chief of Operations
CHARLOTTE-MECKLENBURG UTILITIES
Water Treatment Division 5200 Brookshire Boulevard
Charlotte,NC 28216
PH:704/399-2426
FAX:[phone]

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
RECEIVED/DENR/DWR
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit N 0 V 0 3 2014
1617 Mail Service Center, Raleigh, NC 27699-1617 HI�ty
WON
Permitting Sec�on
NPDES Permit Number NC0084549
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 Charlotte Mecklenburg Utilities
Facility Name Franklin Water Treatment Plant
Mailing Address 5200 Brookshire Blvd
City Charlotte
State / Zip Code NC/28216
Telephone Number [phone] X 222
Fax Number [phone]
e-mail Address [e-mail]
2. Location of facility producing discharge:
Check here if same as above El
Street Address or State Road
City
State / Zip Code
County Mecklenburg
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 Charlotte
Mailing Address 5200 Brookshire Blvd
Charlotte Charlotte
State / Zip Code NC/28216
Telephone Number [phone] X 222
Fax Number [phone]
4. Ownership Status:
Federal 0 State ❑ Private 0 Public
Page 1 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 0
6. Description of source water(s) (i.e. groundwater, surface water)
Surface Water
7. Describe the treatment process(es) for the raw water:
Raw water storage In on-site reservoirs; initial raw water treatment:Addition of powder
activated carbon,coagulation with aluminum sulfate,sedimentation,chlorination
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Spent filter backwash water and basin blow-ckvatsare sent to a surge basin;controlled flow to 2
darifiers; basin effluent flow istreated with a polymer to floc eoiidsfor settling in thedarifers;
clarified water lade-chlorinated prior to discharge to a tributary to Stewart Creek;solids are
transferred to a redduals basin,pumped to a pair of thickeners,dewatered,using belt presses
and removed using a private solids-handling company.
9. Number of separate discharge points: 2
Outfall Identification number(s) 001,002
10. Frequency of discharge: Continuous ® Intermittent 0
If intermittent:
Days per week discharge occurs: Duration:
11. Plant design potable flow rate 132 MGD
Backwash or reject flow 0.720 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Tributary to Stewart Creek
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Alum / aluminum sulfate Yes X No
Page 2 of 4 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
imprisonment not to exceed six months,or by both. (18 U.S.C.Section 1001 provides a punishment by a Ane of not more than$25,000 or imprisonment not more Iran 5
years,or both,for a sknilar offense.)
Page 4 of 4 Version 5/2012

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didimpp,
Facility
NC0084549 Location
Latikil it:35'164 V(C01)
Lonplude:1301725"(001)
C,44 ad:Mourtainis lad 1.4124,N.C. GAUD
StmanClass:C
Franklin WTP
Not to Scale
North
subb as ix 303'34
Rom' ' SbuncUTSirfratCitek

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Iron sulfate / ferrous sulfate Yes No X
Fluoride Yes X No
Ammonia nitrogen / Chloramines Yes No X
Zinc-orthophosphate or sweetwater CP1236 Yes No X
List any other additives below:
Carbon
Lime
Sodium Bisulfate, Liquid Linear Phosphate
14. Is this facility located on Indian country? (check one)
Yes ❑ No El
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]. SEE
ATTACHED
• 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 0 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 as true, complete, and accurate.
John C. Huber Chief Of Operations
Printed name of Person Signing Title
Signature of Applicant Date
North Carolina General Statute 143-215.6(bX2)provides that Any person who knowingly makes any false statement representation,or certification in any application,
record,report,plan,or other document tiles or required to be maintained under Article 21 or regulations of the Envkonmentai 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
Page 3 of 4 Version 5/2012

Franklin Water Plant
Sludge Management Plan
The following is a narrative description of the sludge management plan of the Franklin Water Treatment
Plant Alum Residuals Facilities.It describes the flow of the generated water treatment plant alum
residuals and the water used to convey the residuals to the Alum Residuals Facilities.
The Franklin Water Treatment Plant Alum Residuals Facilities processes the accumulated water treatment
chemical precipitate(aluminum sulfate)from the Franklin and Vest Water Treatment Plants for removal
and clarifies the water associated with this precipitate for discharge.Franklin Water Treatment Plant basin
blowdowns and filter wash residuals are delivered directly by gravity flow to the Alum Residuals
Facilities surge control basins;Vest Water Treatment Plant basin blowdowns and filter wash residuals are
shipped via tanker truck from Vest to the Alum Residuals Facilities residuals basin.
The Franklin Water Treatment Plant water and solids mixture is temporarily held in two surge control
basins to prevent large surge flows to the clarifiers. Surge control basins effluent water flow is treated
with a polymer solution as it flows to a pair of clarifiers.The solids that are present floc together and
readily settle in the clarifiers. The clarified water flows over the clarifiers' weirs and is discharged to a
tributary of Stewart Creek.
The solids that have settled in the clarifiers accumulate until they are returned to the residuals basin.The
unthickened residuals are temporarily held in the residuals basin until they are transferred to a pair of
thickeners.During the transfer,the residuals are treated with another dose of polymer to aid in the settling
of the solids in the thickeners. While the transfer is occurring, any clear water that flows over the
thickeners' weirs is returned to the surge control basins for removal through the clarifiers.
The residuals solids settle in the thickeners.The thickened residuals are then pumped onto two 3-meter
filter belt presses.The solids are treated with a polymer prior to being dewatered on the presses.The press
filtrate flows to a sump pit where the filtrate is pumped to the surge control basins for removal through
the clarifiers. The solids are scraped off the presses and the press cake falls onto a conveyor.The
conveyor delivers the press cake to a waiting trailer.The trailer hauls off the press cake solids to Irwin
Wastewater Plant for storage. At this site the alum sludge is mixed with bio-solids from the City of
Charlotte's Wastewater Plants. The solids are then land applied under the City's Class"B"land
application permit# WQ0000057.
There is a secondary discharge under the same permit that is monitored quarterly. This stream is not part
of the alum residuals process.

•
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory John E. Skvarla, III
Governor Secretary
November 07,2014
John C.Huber, Chief of Operations
Charlotte Mecklenburg Utilities
5200 Brookshire Blvd
Charlotte,NC 28216
Subject: Acknowledgement of Permit Renewal
Permit NC0084549
Mecklenburg County
Dear Mr. Huber:
The NPDES Unit received your permit renewal application on November 03,2014. A member of the
NPDES Unit will review your application. They will contact you if additional information is required to
complete your permit renewal. You should expect to receive a draft permit approximately 30-45 days
before your existing permit expires.
If you have any additional questions concerning renewal of the subject permit, please contact Derek
Denard(919) 807-6307.
Sincerely,
W re w TIAzo(2o-rob
Wren Thedford
Wastewater Branch
cc: Central Files
Mooresville Regional Office
NPDES Unit
1617 Mail Service Center,Raleigh,North Carolina 27699-1617
Location:512 N.Salisbury St.Raleigh,North Carolina 27604
Phone:[phone] Fax:[phone]/Customer Service:1-877-623-6748
Internet:www.ncwater.orq
An Equal Opportunity AAffirmative Action Employer