NC0077143_Renewal (Application)_20170206

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Water, Resources
ENVIRONMENTAL QUALITY
February 3, 2017
Ms. Lisa Smith -Perri, GM/Exec Dir.
West Carteret Water Corporation
4102 Hwy 24
Newport, NC 28570
ROY COOPER
Goremor
MICHAEL S. REGAN
see, eiar)�
S. JAY ZIMMERMAN
Director
Subject: Permit Renewal Application
Application No. NCO077143
West Carteret Water Corp WTP
Carteret County
Dear Ms. Smith -Perri:
The Water Quality Permitting Section acknowledges receipt of your permit application and
supporting documentation received on February 3, 2017. The primary reviewer for this renewal
application is Brianna Young.
The primary reviewer will review your application, and she 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 Brianna Young at 919-807-6388 or [e-mail].
Sincerely,
Wren Thedford
Wastewater Branch
cc: Central Files
NPDES
Wilmington Regional Office
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-807-6300

4102 Hwy 24
Newport, NC 28570
[phone]
[phone] Toll Free
[phone] Fax
[e-mail] E-mail
January 31, 2017
West Carteret eCorporation
A non-profit water corporation serving western Carteret County
Ms. Brianna Young, Environmental Specialist
Division of Water Resources
NC Department of Environmental Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: NPDES Permit Renewal Request
NPDES Permit No. NC0077143
West Carteret Water Corporation WTP
Carteret County, NC
Dear Ms. Young:
This letter is to request the renewal of the NPDES Permit issued to West Carteret Water
Corporation for the discharge associated with our water treatment plant process. Since the
issuance of the previous NPDES Permit renewal in 2012, there have been no modifications to
our plant. We have adhered to the sampling plan as submitted at that time. We do not generate
any solids.
Our plant is currently being expanded to accommodate a water line extension. Tentatively,
construction should be completed mid -2018. At that time, we expect our discharge MGD to
slightly increase due to the addition of one softener and one color filter. We will keep you
abreast of our progress.
Please contact Mr. Bryan Wilson (WTP Operator) or Mrs. Michelle Clements, PE (System
Engineer — 252-758-3746) or myself with any questions or comments you may have.
Sincerely,
Lisa Smith -Perri
General Manager/Executive Director
Attachments
Cc: Michelle Clements, P.E., The East Group

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 NCO077143
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
WEST CARTERET WATER CORPORATION
Facility Name
WEST CARTERET WTP
Mailing Address
4102 HWY 24
City
NEWPORT
State / Zip Code
NC 28570
Telephone Number
[phone]
Fax Number
[phone]
e-mail Address
LISA. [e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road
City
State / Zip Code
County
4104 HWY 24
NEWPORT
NC 28570
CARTERET
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 EAST GROUP, PA (CONSULTING ENGINEER)
Mailing Address 324 EVANS ST
City GREENVILLE
State / Zip Code NC 27858
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public
Page 1 of 4 Version 5/2012

NPDES PERMIT APPLICATION e SHORT FORM C o 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) [Currently used as sand only; not activated by
Potassium permanganate]
❑ 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)
Five (5) active groundwater wells located in the Croatan National Forest.
7. Describe the treatment process(es) for the raw water:
The raw water enters the treatment plant from ground water wells where it first goes through an aerator
before entering two (2) 50,000 gallon ground storage tanks. The next step is iron removal. At current,
water flows through the green sand filters, which are not currently being activated by potassium
permanganate due to low iron levels in the raw water. The water then goes through ion exchange softening
followed by color removal, which is also ion exchange. After color removal, chlorine gas is added. Water is
transferred to two detention tanks, where ammonia is added after approximately 20 minutes of detention
time, which creates chloramines disinfectant. The water then leaves the plant and enters either the
distribution system or elevated storage.
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
The ion exchange media (softener/ color) is regenerated using a brine solution. The softener is discharged
into an effluent well and then directly into the receiving stream per the existing NPDES Permit. The color
vessel backwash is discharged into a mechanical treatment sand filter (lagoon) before entering the effluent
well and being discharged to the receiving stream. When the iron removal is in use, the backwash from
this process is discharged into drying beds where the solids are filtered and the liquid is discharged to an
effluent well to be then discharged to the receiving stream. All three processes have independent backwash
systems that discharge into a common effluent force main. The iron backwash uses potable water for
backwash and raw water for the final rinse. Softener and color vessels use raw water for backwash/fast
rinse and potable water for brine solutions.
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: 9 hrs
11. Plant design potable flowrate 2.0 MGD
Backwash or reject flow .09 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
East Prong Sanders Creek in the White Oak River Basin
Page 2 of 4 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C ® WTP
For discharges associated with water treatment plants
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 x
Ammonia nitrogen / Chloramines Yes x No
Zinc -orthophosphate or sweetwater CP1236 Yes No x
List any other additives below:
Ortho -polyphosphate
14. Is this facility located on Indian country? (check one)
Yes ❑
M
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-I5:
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.
Page 3 of 4
Version 5/2012

NPDES PERMIT APPLICATION ® SHORT FORM C e WTP
For discharges associated with water treatment plants
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 4 of 4 Version 5/2012

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