NCG590039_Application_20211015

City of Asheville
Water Production
3374 North Fork Left Fork Rd
Black Mountain, NC 28711
Office: 828-669-8569
Fax: [phone]
September 30, 2021
Mr John Hennessy
NC DEQ/ DWR/NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Mr Hennessey,
The City of Asheville has reviewed the Division of Water Resources General Permit
NCG590000 for greensand and conventional type water treatment plants and requests that the
discharge from the William DeBruhl WTP be covered under this new general permit. The City
understands that the Division will rescind the individual NPDES permit for the William DeBruhl
WTP — NC0056961 when the Certificate of Coverage for the General Permit NCG590000 is
issued to the City for the WTP.
Sincerely,
Leslie P. Carreiro
Water Production Division Manager
City of Asheville, NC
The City of Asheville is committed to delivering an excellent quality of service to enhance your quality of life.

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For water treatment plants that desire coverage under General Permit NCG590000
Mail the complete application to:
N. C. Department of Environmental Quality
Division of Water Resources / NPDES program
1617 Mail Service Center, Raleigh, NC 27699-1617
Existing NPDES Permit Number NC00
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
City of Asheville
William Debruhl Water Treatment Plant
3374 N. Forlc - Left Fork Road
Black Mountain
NC, 28711-8752
( 828 ) 271-6101
( 828 ) 271-6102
[e-mail]
2. Location of facility producing discharge:
Check here if same as above n
Street Address or State Road
City
State / Zip Code
County
1370 Bee Tree Road
Swannanoa
NC, 28778-3509
Buncombe
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is
Operator in Responsible Charge or ORC)
Name City of Asheville Water Reasources Department
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
3374 N. Fork - Left Fork Road
Black Mountain
NC, 28711-8752
( 828) 271-6101
( 828 ) 271-6102
4. Ownership Status:
Federal
State
Private! Public Mot referring to the

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For water treatment plants that desire coverage under General Permit NCG590000
5. Type of treatment plant:
IX 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
Description of source water(s) (Le. groundwater, surface water)
Surface
7. Describe the treatment process(es) for the raw water:.
Direct Filtration with pre -chlorine and Poly Aluminum Chloride (PAC) added to raw water
Sedimentation: N/A
Filtration: Filters remove floc from treated water
Disinfection: Post -chlorine, fluoride, zinc orthophosphate, sodium bicarbonate and caustic
are added before the clearwell for CT. Water is then released to distribution.
8. Describe the wastewater and the treatment process(es) for wastewater generated by the facility:
Waste is settled in 500,000 gallon primary lagoon with 300,000 gallon secondary lagoon; waste
water is usually sent through both lagoons before discharge.
Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge:Continuous IXXI Intermittent n
If intermittent:
Days per week discharge occurs: Duration:
11. Plant design potable flowrate 5.2
MGD
Backwash or reject flow 0.088 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including latitude
and longitude):
Bee Tree Creek
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

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For water treatment plants that desire coverage under General Permit NCG590000
Iron sulfate / ferrous sulfate Yes
Fluoride YesX No
NoX
Ammonia nitrogen / Chloramines Yes NoX
Zinc -orthophosphate or sweetwater CP1236 YesX No
List any other additives below:
Sodium Hydroxide; Sodium Hypochlorite; Sodium Bicarbonate; Poly -Aluminum Chloride
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. 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.
Leslie P. Carrerio
Water Production Division Manager
Printed name of Person Signing Title
Sig t re of Applicant
2/
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.)

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Latitude; 35°38'26'
Long' tuck: 82°23'58"
Quad it T?9N\V
Stream Class: C
Subbasin: 40302
itcce'vlttg Stream: Tice Trcc Creek
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NC0056961
City of Asheville
1JeBniht WX't?
C L tURYEY, AtGio)l, Ylno)t11A— 117i
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SCALE I 24000
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DECANT STRUCTURE
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EMERGENCY SPILLWAY
OVERFLOW STRUCTURE
~` Primary Wastewater Lagoon
(Lagoon #1)
500,000 gallon
BENCHMARK:.
TOP OF HEADWALL
ELEV.=2524.00
3
[CO-C-N7
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SOO/000 Sa\kon ca &e4%%\(-

Secondary Wastewater Lagoon
(Lagoon 42)
300,000
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William Debruhl WTP Sludge Handling Plan for 2021
William DeBruhl Water Treatment Plant
City of Asheville Water Resources Department
NPDES Permit NC0056961
Prepared For: NCDENR/DWQ/NPDES Unit
Prepared BY: Judson Bledsoe, Supervisor, William DeBruhl Water Treatment Plant
Date: September 30, 2021
Currently solids are removed from William Debruhl WTP lagoons #1 on an annual basis. The
City of Asheville's Water Resources Department/Water Production Division contracts sludge
removal through a contractor that specializes in removal of solids in a sludge form that are
agitated and pumped into a holding tank to increase solids content. These solids are mixed with
a polymer and processed through a belt filter press to form a dry cake solid that can be
transported to the Buncombe County Sanitary Landfill for disposal.
In 2021, BioNomic Services Inc., removed 23.24 dry tons from lagoon #1 during an 11 day
period.
Signature: 0
ameAci
Date: 30, 2U.2(