NC0078131_Renewal (Application)_20221222

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7,c STATE'4,A�(l{
ROY COOPERGovernor
ELIZABETH S.BISER •,Secretary "Y
1 RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality i
January 09, 2023
City of Havelock
Attn: Christopher W. McGee
PO Box 368
Havelock, NC 28532-0368
Subject: Permit Renewal
Application No. NC0078131
Brown Blvd WTP
Craven County
Dear Applicant:
The Water Quality Permitting Section acknowledges the December 22, 2022, 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. 150E-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:
https://deq.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.
/Siinceerrely,
ac . .tarcci j
Wren Thed ord
Administrative Assistant
Water Quality Permitting Section
cc: David Hemenway
ec: WQPS Laserfiche File w/application
D_E Q/ North Carolina Department of Environmental Quality I Division of Water Resources
,/ Washington Regional Office 943 Washington Square Mall Washington.North Carolina 27889
om-«.7>fr....++ / 252946.6481

• - K NORTH CAR() David Hemenway
City of Havelock Water Treatment Plant
P.O. Drawer 368 Supervisor/ORC
C ` Havelock,NC 28532 P.O.Drawer 368
■� [phone] Havelock,NC 28532
[phone]
'NCDRPORATED 1969 [e-mail]
RECEIVED
2 2 2022
December 13, 2022
NCDEQIDWRINPDES
John Hennessy,Environmental Program Supervisor II
NC Dept. of Environmental Quality, Division of Water Resources
Compliance&Expedited Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
REF: Renewal of NPDES permit#NC0078131
City of Havelock Water Treatment Plant Backwash Systems(Short Form C)
Craven County
Dear Mr. Hennessy,
The City of Havelock herein submits a permit application form for the City's Water
Treatment Plant Backwash System. The waste facility is undergoing a complete redesign
since last permit renewal. The facility has a 417, 000-gallon clarifier where the waste
enters and settles, then the clear water goes to a 60,000-gallon polishing basin to leave
through the effluent meter vault and dechlorinating station through a 12"discharge line to
empty into existing discharge point. The sludge, that collects at the bottom of clarifier is
wasted to one or more of the six drying beds to dry. The dried solids are hauled to
landfill. Enclosed is the design layout for this new plant.
The backwash flow averages 99,000 gallons per day. A copy of our sludge management
plan is enclosed. The discharge alternatives evaluation will be provided by Rivers and
Associates. If you need any further information,please do not hesitate to contact me at
(252)-444-6420.
Si erely �y
7/
David Hemenway
Water Treatment Plant
Supervisor/ORC
Attachment follows:

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. DEQ / DWR / NPDES
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number NC0078131
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 Havelock
Facility Name City of Havelock Water Treatment Plant
Mailing Address PO Drawer 368
City Havelock
State / Zip Code 28532
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 527 Brown Blvd.
City Havelock
State / Zip Code NC 28532
County Craven
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 Havelock (Christopher McGee/City Manager)
Mailing Address PO Drawer 368
City Havelock
State / Zip Code NC 28532
Telephone Number 252-444-6401
Fax Number 252-447-0126
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public
Page 1 of 4 Version 6/2017

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)
® g )
❑ 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)
Castle Hayne Aquifer (Groundwater) - High in iron, manganese, and hardness
7. Describe the treatment process(es) for the raw water:
Water from the aquifer is pumped from the well into two aeration basins. As the water cascades
down through the aerator, it removes hydrogen sulfide and starts oxidation process. Next the
water is injected with sodium permanganate to further oxidize the iron so greensand filters in
the plant can remove it. Water leaves the filters to enter the ion exchange softeners to remove
calcium & magnesium hardness. After leaving the softeners, it is blended with filter water to
give desired hardness. Next it is injected with zinc orthophosphate for corrosion control, then
sodium hypochlorite and ammonia to form chloramines. After processing it is then stored in a
1.0 MG ground storage tank before being sent to the system.
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Our wastewater consists of iron, manganese, chlorides, magnesium, and calcium that both the
greensand filters and ion exchanged softeners have removed. The water leaves the water
treatment plant, going through an influent meter to the 417,000-gallon clarifier. The sludge
settles, leaving clean water on top that is decanted back to a 60,000-gallon (original) basin to
settle more, leaves there, metered and then injected with calcium thiosulfate for chlorine
removal, out through a 12" line to a discharge point located on map. The sludge produced is
gathered in the bottom of the clarifier with sludge arm, where we waste out the material with
solids handling pumps to be applied to 6 drying beds. The water filters out, and then is pumped
back up to the clarifier. Remaining sludge is dried, then removed by equipment and hauled to
the landfill.
9. Number of separate discharge points: 1 Outfall Identification number(s) 001
10. Frequency of discharge: Continuous Intermittent X
If intermittent:
Days per week discharge occurs: 6-7 Duration: 3-4 hours/day
11. Plant design potable flowrate 2.8 MGD
Backwash or reject flow .099 avg MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitudes
Page 2 of 4 Version 6/2017

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
McCotter Canal to Shop Branch Latitude: 34*51'28" N Longitude: 76*53'28" W
• See Attachment
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 X No
List any other additives below:
Sodium Permanganate
Sodium Hypochlorite
Citric Acid (cleaning resin)
Calcium Thiosulfate (dechlorinating for backwash waste effluent)
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 See At theu
16. NEW Applicants
Information needed in addition to items 1-15:
New applicants are strongly recommended 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.
Page 3 of 4 Version 6/2017

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
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.
01r1S+dphfY (A)• MC6ee Civ Ma/141
Printe ame of Person Signing Title
1 //2 Z 2-
-
Signature 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 4 of 4 Version 6/2017

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Copyright.©2013 National Geographic Society, i-cubed
City of Havelock N
Brown Boulevard WTP
-
NPDES Permit NC0078131 r
Facility Location
Receiving Stream: McCotter Canal to Shop Branch scale not shown
Stream Segment: 27-115-3 Stream Class:SC;Sw, NSW Sub-Basin#: 03-04-10 SCALE
River Basin: Neuse USGS Quad:Masontown
County: Craven HUC:0302020405 1:24,000 34.86056°,-76.89389°

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City of Havelock's Water Treatment Plant Waste
Management Plan
The City of Havelock Water Treatment Plant manages the sludge
produced from backwash waste from the greensand filters and ion
exchange softeners in the following manner.
The waste produced from the treatment processes is collected at the
bottom of our clarifier by way of a scraper arm. After a couple of days, it
is then pumped through the solids handling pump station down to our
one or more of the six drying beds to be dried out. When the sludge is
dry enough to pass a paint, filter test it is then cleaned out by a loader
and hand method to be loaded into a 20-30-yard dumpster to be
transported by GFL to the Tuscarora Land Fill in Craven County.
Sig ,
David Hemenway
WTP Supervisor/ORC