NC0082759_Renewal (Application)_20170807

WuterResources
ENVIRONMENTAL QUALITY
August 07, 2017
Marion Workman, President
Orange Alamance Water System
5900 US 70
Mebane, NC 27302
Subject: Permit Renewal
Application No. NCO082759
Orange -Alamance Water System WTP
Orange County
Dear Applicant:
ROY COOPER
covemw
MICHAEL S. REGAN
Secretary
S. JAY ZIMMERMAN
Director
The Water Quality Permitting Section acknowledges the August 3, 2017 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. 1506-3 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•//dgq 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,
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
cc: Central Files w/application
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

ORANGE-ALAMANCE WATER SYSTEM, INC.
POST OFFICE BOX 187
July 27, 2017
MEBANE, NORTH CAROLINA 27302
Mr. Wren Thedford
NC DENR / DWR / NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Renewal of NPDES Permit NCO082759
Dear Mr. Thedford,
TELEPHONE [phone]
RECEIVEDUDEWWR
AUG - 3 2017
'Nay ez uahty
Permitting gecfion
Orange -Alamance Water System, Inc. would like to request renewal of NPDES Permit
NC0082759. Please find attached one signed original and two copies of the completed
applic'at'ion form. Attached also is a diagram of the flow through the facility and one
signed original and two copies of our statement regarding the sludge management plan.
If any further information is required, please feel free to contact me at [phone].
Sincerely,
ORANGE-ALAMANCE WATER SYSTEM, INC.
G 2z./
�
Christopher Dale Hamby,
Water Plant Manager

SLUDGE MANAGEMENT PLAN
Orange -Alamance Water System, Inc. does not have a written sludge management plan.
Sludge is settled and held in (2) waste lagoons until lagoons reach capacity. Orange -
Alamance Water System will then contact with a sludge removal company to remove
sludge.
istoph ale Hamb
Water Plant Supervisor
7/3//)7
Date
RECEIVEDINCDEQIDWR
AUG - 3 2017
Water Quality
Permitting Section

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 INCO368020
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
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
Orange -Alamance Water System, Inc.
Orange -Alamance Water System Water Plant
P O Box 187
Mebane
NC / 27302
[phone] or [phone]
[phone]
h2ochrishamby@gmail. com
RECEIVED/NGDEODWR
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road
City
State / Zip Code
County
AUG -3 alt
2101 US Hwy 70 E Water Quality
Pe;r4 ttinn Section
Efland
NC / 27243
Orange
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility (Note that this is not refemng to the
Operator in Responsible Charge or ORC)
Name Orange -Alamance Water System, Inc.
Mailing Address P O Box 187
City Mebane
State / Zip Code NC / 27302
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private Public ❑
Page 1 of 3 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
S. Type f 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)
❑ 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)
Ground Water, and Surface Water
7. Describe the treatment process(es) for the raw water:
Raw water is treated with alum, polymer, potassium permanganate, and caustic as needed
for pH adjustment for proper coagulation. Water is then settled in conventional
sedimentation basin, mixed with a portion of well water at sed basin outlet, then filtered.
Chlorine is added before and after the filters.
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
All waste water is generated by filter backwash and filter rewash. All waste water is treated
with 2.5 to 3.0 mg/L of calcium thiosulfate for de -chlorination, then settled in primary
and secondary lagoons before discharge.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑ Intermittent LrJ
If intermittent:
Days per week discharge occurs- 5 Duration: 15 minutes for rewash. 30 to 35
minutes for backwash and rewash.
11. Plant design potable flowrate 900 MGD
Backwash or reject flow 1.44 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Eno River, Latitude: 36 05' 00" , Longitude: 79 08' 25"
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
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
Fluoride Yes No
Ammonia nitrogen / Chloramines Yes No
Zinc -orthophosphate or sweetwater CP1236 Yes No
List any other additives below.
Polymer, Potassium Permanganate, Phosphate, Chlorine, Aqueous Ammonia 15%, and
Caustic Soda 25%
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-I5:
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.
Christopher Dale Hamby Water Plant Supervisor
Printed name of Person Signing Title
.O./ -� / / Z/ Z'z -7
Applican
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

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 INCO368020
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
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
Orange -Alamance Water System, Inc
Orange -Alamance Water System Water Plant
P O Box 187
Mebane
NC / 27302
[phone] or [phone]
[phone]
[e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road
City
State / Zip Code
County
2101 US Hwy 70E
Efland
NC / 27243
Orange
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 Orange -Alamance Water System, Inc
Mailing Address P O Box 187
City Mebane
State / Zip Code NC / 27302
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private [ Public ❑
Page 1 of 3 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
5. Type 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)
❑ Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener ❑
6. Description of source water(s) (t e. groundwater, surface water)
Ground Water, and Surface Water
7. Describe the treatment process(es) for the raw water:
Raw water is treated with alum, polymer, potassium permanganate, and caustic as needed
for pH adjustment for proper coagulation. Water is then settled in conventional
sedimentation basin, mixed with a portion of well water at sed basin outlet, then filtered.
Chlorine is added before and after the filters.
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
All waste water is generated by filter backwash and filter rewash. All waste water is treated
with 2.5 to 3.0 mg/L of calcium thiosulfate for de -chlorination, then settled in primary
and secondary lagoons before discharge.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑
If intermittent:
Days per week discharge occurs. 5
minutes for backwash and rewash.
11. Plant design potable flowrate .900 MGD
Backwash or reject flow 1.44 MGD
Intermittent [
Duration: 15 minutes for rewash. 30 to 35
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Eno River, Latitude: 36 05' 00" , Longitude: 79 08' 25"
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
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 oNo
Fluoride Yes No
Ammonia nitrogen / Chloramines Yes No
Zinc -orthophosphate or sweetwater CP1236 Yes No
List any other additives below -
Polymer, Potassium Permanganate, Phosphate, Chlorine, Aqueous Ammonia 15%, and
Caustic Soda 25%
14. Is this facility located on Indian country? (check one)
Yes ❑
No Nroo,
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
Informatzon needed in addztzon 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.
Christo her Dale Hamby Water Plant Supervisor
Printed name of Person Sign,v
jag Title
7/31117
S' nature of nlicant 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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