NC0080381_Renewal Application_20180803

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ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S. REGAIN
Secrerm-r
LINDA CULPEPPER
Interim Director
August 21, 2018
Russell G. Colbath, Director
City of Monroe
PO Box 69
Monroe, NC 28111
Subject: Permit Renewal
Application No. NC0080381
John Glenn WTP
Union County
Dear Applicant:
The Water Quality Permitting Section acknowledges the August 3, 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:
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.
Sincerely,
„VOA
Wren The ford
Administrative Assistant
Water Quality Permitting Section
cc: Central Files w/application
ec: WQPS Laserfiche File w/application
O .vw.wiM[non sem q.w, rI
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-807-6300

•
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 NC0080381
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 Monroe
Facility Name John Glenn Water Treatment Plant
Mailing Address PO Box 69 RECEIVE
DtDENP/DWR
City Monroe 46 0 3 201$
State / Zip Code NC 28111-0069 Wter Resources
Telephone Number [phone] persmlttin9 Section
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 2119 Old Camden Road
City Monroe
State / Zip Code NC 28110
County Union
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 Monroe
Mailing Address PO Box 69
City Monroe
State / Zip Code NC 28111-0069
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public X
Page 1 of 3 Version 5/2012
1

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
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, 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:
In Lake Twitty we find our first treatment process,aeration. From there the water is pumped from our source water intake into the
reaction basin. Potassium permanganate is injected seasonally as needed into the water prior to the reaction basin.Sodium
hydroxide may be added prior to the reaction basin to provide alkalinity to the source water for treatment when needed. From the
reaction basin the water flows to our splitter box. Powder activated carbon is added between the reaction basin and the splitter box.
Sodium hydroxide is added right before the splitter box for pH control and alkalinity adjustment. Ferric Chloride is added in the
splitter box and is our primary coagulant. From the splitter box the water flows to the individual rapid mixers where it receives
mechanical mixing.We have the capability to add our primary coagulant here also. Polymer may be added to the discharge of the
rapid mixers to assist in the flocculation/coagulation process.
From the rapid mixers the water flows into our flocculators where slow mixing of the water and chemicals occur for floc formation.
The water exits the flocculators directly into the sedimentation basins. In the basins the heavier particles settle to the bottom of the
basin where they are removed by a Trac Vac system or during a basin dump through bottom drains and sent to the clarifier(sludge
thickener).The clear water from the top of the basins is sent to the filters.The filters are dual media dual cell filters.The filters are
rated at 4.5 mgd each.The objective of the filters is to remove any suspended particles. In the filters we add chlorine,and sodium
hydroxide, polymer may be added here as well.The filters have an air scouring system for backwashing.The back wash water is
sent to the sludge storage lagoon.The filtered water flows to the 2 million-gallon clearwell for further disinfection prior to being sent
to the distribution system
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Filter backwash water is sent to the sludge storage lagoon where the solids settle out and the supernatant is sent to the clarifier
(sludge thickener).The clarifier also accepts the settled solids from the sedimentation basins either from the trac vac system or a
basin dump. In the sludge thickener the solids continue to settle to the bottom and thickening.The sludge is drawn off the bottom
and dispersed to the drying beds for drying or to trucks for land application.The supernatant from the sludge thickener is de-
chlorinated as needed with sulfur dioxide and discharge to the creek through the NPDES permitted discharge point.
9. Number of separate discharge g points: 1_
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑ Intermittent X
If intermittent:
Days per week discharge occurs: 7 Duration: Varies 0 to 24 hours
11. Plant design potable flowrate 11.2 MGD
Backwash or reject flow MGD
Page 2 of 4 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Alum / aluminum sulfate Yes No X
Iron sulfate / ferrous sulfate Yes No X
Fluoride Yes X No
Ammonia nitrogen / Chloramines Yes X No
Zinc-orthophosphate or SNC-Lead Free Yes X No
List any other additives below:
Ferric Chloride, Chlorine, Carbon, Non Ionic Polymer, Copper Sulfate, Potassium Permaganate
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].
(Attached)
• Solids Handling Plan
(Attached)
16. NEW Applicants
Information needed in addition to items 1-15:
• New applicants must 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.
Russell G. Colbath P.E. Water Resources Director
Printed name • P- son Signing Title
7- ;
Signature of 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 3 of 3 Version 5/2012

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John Glenn Water Treatment Plant(11.0 MGD)
NPDES PERMIT#NC0080381
Monroe, NC Lake Twitty
Process Schematic Storm•
NPDES SYSTEM COLOR CODED GREEN Future Future
Centirfuge 2019 Clarifier 1,I�,
V=L 1Sr_
® StormManhle
(> am • ludge Pump Building
#1 Sludge Beds • !fur Dioxide Building • '',Ali DIffUser5.,
• • - Turn Pe n•anat•eSui•iti•
SI a Stora a oon Supernatant,Trac Vac Discharge and sin Floor Drains to Clarifier Clarif' Carbo ! Ae_ratio
G
Raw Pum.
' • , • • `` Effluent Parsh. I lume -
;' Filter Backwash and/Cop Basin Drains(Water'to Sludge Storage Lagoon I Deca�t•um; _ with Flow Meter ,: device 1�
• ` % • �� • `� - mad
I ` ontact •a
1 I ` `` ,� e © • Stewarts reek
' ,' Filte's + ; 3
.lud•eStora•e La•oon ;' �� 4� : $edirp_elttation Basinit2 -=lator _ Storm. i
2.25 MG ,' b76 Mcg
;' Flocculato Fitt- s
.' __ �� 1 Sedimentatio Basin#1 II M--ators
• a_.,;_ntation Basin • ' /
MG .576 MG Reaction Basin j
Decant Pumas ;' • + znur
I er#1
2 •e 20.••m e-"-� Splitter Box Outfall 001
' �� Rapid Mixer#2 I © Monthly flow
• s 8'), I ���� 2014 though 2018
I Average 0.76 mgd
Chemical Feed Legend - y;� Max 1.12 mgd
Potassium Permanganate ---- 11) Pump Station#2 Rapid Mixer#1
a Min 0.35 mgd
Powdered Activated Carbon 2 r it ControiBuildin• o
Ammonia Tank and Buildin ADA S stem —
Stewarts Cr
Sodium Hydroxide -> 3 "' Chemical Roo "' Pum #1
Chlorine _..> 0 . .;. :,�
Ferric Chloride ©i---\ . 4
Polymer ------ of 9 Storm Drain 9 N /
Polyphosphate ___> 77 _.---7
Stewarts
Fluoride 8 To Distribution S stem
Ammonia 9 ����
Sulfur Dioxide 10 �� Old Camden Road

. .
Monroe
�a girth Carolina
Solids Handling Plan
John Glenn Water Treatment Plant
City of Monroe,North Carolina
Wastewater from the water treatment process consists of backwash water from the filters and ferric
chloride sludge removed from the sedimentation basins.
The backwash water from the filters is discharged to the wash water lagoon. In the wash lagoon solids
from the backwash settle to the bottom. The clear water on the top is then pumped to our clarifier(sludge
thickener)by our wash water lagoon decant pumps.
Ferric chloride sludge from the sedimentation basins is discharged to the clarifier by routine operation of
the trac vac system or during periodic basin cleaning.
In the clarifier the solids and water are separated. The solids are concentrated in the bottom of the
clarifier and pumped to sand drying beds or to trucks for land application. During the pumping process to
the drying beds the sludge is condition with polymer at the sludge pumping pumps. The dewatered cake
from the sand drying beds is currently taken to the City of Monroe's wastewater plant where it is blended
with their sludge and land applied in accordance with Land Application Permit No. WQ0001346.
The clear water from the top of the clarifier is discharged at controlled intervals by the decant pumping
station or gravity feed through the parshall flume where it is metered,from there it flows through the
dechlorination contact chamber into Stewarts Creek.
Sincerely,
David Rankin
Water Treatment Superintendent

March 12,2015
Wastewater Branch _
Water Quality Permitting Section -
Division of Water Resources
1617 Mail Service Center
Raleigh,NC 27699-1617 CITY OF MONROE
P.O. Box 69
Monroe, NC 28111-0069
Subject: Delegation of Signature Authority
CITY OF MONROE WTP
NPDES Permit Number NC008038
To Whom It May Concern:
By notice of this letter, I hereby delegate signatory authority to each of the following individuals for all
permit applications, discharge monitoring reports, and other information relating to the operations at
the subject facility as required by all applicable federal, state, and local environmental agencies
specifically with the requirements for signatory authority as specified in 15A NCAC 2B.0506.
Individual #1 Individual#2 Of applicable)
Name: Russell Colbath David Rankin
Title: Director of Water Resources Wtp Supernitendent
Po Box 69 Po Box 69
Mailing Address: Monroe Nc 28111-0069 Monroe Nc 28111-0069
Physical Address: 2401 Walkup Avenue 2119 Old Camden Road
of different) Monroe Nc 28111 Monroe Nc, 28110
Email Address: [e-mail] [e-mail]
Office Phone: [phone] 704 - 282 - 4668
Mobile Phone: 704 -226 - 6080 704 - 661 -2131
If you have any questions regarding this letter,please feel free to contact me at 704-282-4501.
Sincerely,
E. L. Faison
City Manager
cc: Mooresville Regional Office, Water Quality Permitting Section