NC0046302_Renewal (Application)_20170206

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Water Resources
ENVIRONMENTAL QUALITY
February 6, 2017
Mr. Michael Brandt
Town of Mayodan
210 W. Main St.
Mayodan, NC 27027
Subject: Permit Renewal
Application No. NCO046302
Mayodan WTP
Rockingham County
Dear Mr. Brandt:
ROY COOPER
Gavonol
MICHAEL S. REGAN
sco elw j
S. JAY ZIMMERMAN
1);, e to
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 John Hennessy.
The primary reviewer will review your application, and he 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 Mr. Hennessy at 919-807-6377 or [e-mail].
Sincerely,
?Aw %&*id
Wren Thedford
Wastewater Branch
cc: Central Files
NPDES
Winston-Salem 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

February 2, 2017k, , COE k Y
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Mr Wren Thedford fii�€z,
NC DENR / DWR / NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Renewal Notice
NPDES NC0046302
Mayodan WTP
Rockingham County
The Town of Mayodan is requesting renewal of NPDES NC0046302. There are
currently no changes at the facility.
Sincerely,
Michael R. Amos
NPDES ORC

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 NumberN(NCO046302
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
Town of Mayodan
Facility Name
Mayodan WTP
State / Zip Code
NC. 27027
Mailing Address
210 W. Main St.
City
Mayodan
State / Zip Code
NC. 27027 ! t �1 r, Y
Telephone Number
[phone]
Fax Number
[phone]
e-mail Address
mai�oT�Ttp;

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Federal ❑ State ❑ Private ❑ Public X
5. Type of treatment plant:
X 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, nano%ltration)
Check here if the treatment process also uses a water softener ❑
6. Description of source water(s) (i. e. groundwater, surface water)
Surface Water: Mayo River
7. Describe the treatment processies) for the raw water:
Conventional treatment: Alum coagulation/ seasonal polyaluminum chloride (PAC),
flocculation and sedimentation, followed by filtration and disinfection.
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Wastewater is produced by wasting the settled solids and filter backwash solids to the
wastewater lagoons. Wastewater is allowed to settlle in lagoons with no chemical
treatment, however, dechlor tablets are used to dechlorinate effluent prior to discharging
into receiving stream.
9. Number of separate discharge points: 1
Outfall Identification number(s)
10. Frequency of discharge: Continuous ❑ Intermittent X
If intermittent:
Days per week discharge occurs: 7 Duration: varies
11. Plant design potable flowrate 3.0 MGD
Backwash or reject flow 6.2 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Unknown tributary of Mayo river, Latitude 36 25' 18" Longitude 79 58' 04"
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 X No
Iron sulfate / ferrous sulfate Yes No X
Fluoride Yes No X
Ammonia nitrogen / Chloramines Yes No X
Zinc -orthophosphate or sweetwater CP1236 Yes No X
List any other additives below:
Polyaluminum chloride (PAC)
Sodium Hydroxide
Chlorine gas
Polyphosphate
14. Is this facility located on Indian country? (check one)
Yes ❑
No X
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.
Michael R. Amos ORC
Printed name of Person,Signing Title
Sys ',Ji �z r gy f
Signature of Applicant Date
Page 3 of 4 Version 5/2012

rcliiiiL 11 IIVV'+03VL
Quad: B19NW- Mayodan, NC
Latitude: 36025'18" N NCO046302
Longitude: 79058'04" W
Stream Class: WS -IV CA Town of Mayodan WTP
Subbasin: 030202
Receiving Stream: UT to Mayo River
Facility
off ��s
Location.'
�x
�/IrOt Rockingham County

Mayodan Water Treatment Plant
Solids Handling Plan
NPDES NCO046302
Land Application # WQ0002672
Every 2-3 years or as needed, solids from the lagoon are pumped out by
McGill Environmental Systems or removed by Southern Soil Builders.
Solids are then composted or land applied respectively.

Flash Mix
Alum &
Sodium hydroxide
SEL PAC (seasonal)
Flushed & Cleaned
quarterly
4
Floccculation
Basins
Flushed & Cleaned
quarterly.
4
Sedimentation
Basins
Flushed weekly
Cleaned quarterly.
Multimedia
Filters
Pre -Chlorine
Added
Backwash Solids.
Daily discharge.
01
Clearwell
Tank
Sodium Hydroxide,
Polyphosphate,
& Post Chlorine
added upstream of
this tank.
�� Mayo River
High Level
Storage
Tank
Drinking
Water
Mayodan WTP
Schematic
Raw
Pump
Station
Lagoon #2
Dechlor
tablets used
prior to
discharge.
NPDES
0046302
Lagoon #1
Currently
Not In Use.

NPDES PERMIT APPLICATI®NT - SHORT FORM C - 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