NC0083119_Renewal Application_20180511

ROY COOPER
Governor
MICHAEL S.REGAN
Secreico—
Water Resources LLNDA CULPEPPER
ENV R0NMENTAL QUALITY InieriMDirector
May 11, 2018
Christie Putnam
City of Concord
9000 Aviation Blvd
Concord, NC 28027
Subject: Permit Renewal
Application No. NC0083119
Coddle Creek WTP
Cabarrus County
Dear Applicant:
The Water Quality Permitting Section acknowledges the May 10, 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:
httbs://decl.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,
xpaRzi_
Wren Thedford
Administrative Specialist II
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-807-6300

7 May 2018 `fl'®
RECEI�!ED!DEw1 RIDNn
NC DENR/DWR/NPDES Unit MAY ® 2018
1617 Mail Service Center
Raleigh, NC 27699-1617 Water Resources
Permitting Section
Dear Mr.Thedford:
The City of Concord requests renewal of the NPDES permit for the Coddle Creek WTP. The current permit number
for Coddle Creek WTP is#NC0083119. There have been no changes at Coddle Creek WTP since the issuance of the
last permit. Thank you for your assistance with this matter.
Sincerely,
Christie Putnam
Water Resources Director,
City of Concord
Enclosures

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 NC0083119
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 Concord
Facility Name Coddle Creek Water Treatment Plant
Mailing Address P.O. Box 308
City Concord
State / Zip Code North Carolina 28026
Telephone Number [phone]
Fax Number [phone]
e-mail Address [e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road 6935 Davidson Highway
City Concord
State / Zip Code North Carolina 28027
County Cabarrus
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 Concord
Mailing Address P.O. Box 308
City Concord
State / Zip Code North Carolina 28026
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public Til
Page 1 of 3 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
5. Typ. .f treatment plant:
f!Y 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
7. Describe the treatment process(es) for the raw water:
Oxidation with potassium permanganate; taste and odor control with powdered activated
carbon; coagulation and sedimentation, using aluminum sulfate and coagulant aid polymer
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Settled sludge and filtered backwash water is discharged to two lagoons where settling
occurs. The supernate is drafted off through discharge gates and dechlorinated, using
calcium thiosulfate, prior to its release at the disdharge weir.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous V Intermittent ❑
If intermittent:
Days per week discharge occurs: N/A Duration: N/A
11. Plant design potable flowrate 12 MGD
Backwash or reject flow 0.6 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Coddle 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 3 Version 5/2012

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:
Powdered activated carbon, potassium permanganate, coagulant aid polymer
Sodium hypochlorite, sodium hydroxide, polyphosphate, calcium thiosulfate
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.
(1/4;22,SR6--- a rvA-441
Printed name of P- on Signing Title
ature of A p plicant 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
impnsonment 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 impnsonment not more than 5
years,or both,for a similar offense)
Page 3 of 3 Version 5/2012

Coddle Creek Water Treatment Plant Lagoon System Sludge Removal Plan
NPDES permit# NC0083119
The City of Concord contracts with a private company,to remove sludge from the Coddle Creek
Water Treatment Plant (WTP) lagoons. The sludge removal contract is bid out to various firms;
the low bidder on the current project is Bio-Nomic Services, Inc. (516 Roundtree Road,
Charlotte, NC 28217-2133).
Sludge has been removed from the Coddle Creek lagoon approximately every 11/2 years. The
quantities of sludge average between 4500—5500 tons. The sludge is deposited at the BFI
landfill in Concord, NC.
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City of Concord
Facility
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Coddle Creek WTP Location _ ,_
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Latitude: 35°25'57" N State Grid: Concord not to scale
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Longitude: 80°41'40" W Permitted Flow: 1 00 MGD
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Receiving Stream: UT to Coddle Creek Stream Class: C 1VNPDES Permit No.NC0083119
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Cabarrus County
Drainage Basin: Yadkin-Pee Dee River Basin Sub-Basin: 03-07-11
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