NC0085154_renewal application_20200827

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MICHAEL S.REGAN \‘ 41,.. -
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S. DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
September 14, 2020
Town of Weaverville
Attn: Jared Duncan, ORC
PO Box 338
Weaverville, NC 28787-0338
Subject: Permit Renewal
Application No. NC0085154
Lawrence T. Sprinkle Jr. WTF 1
Buncombe County
Dear Applicant:
The Water Quality Permitting Section acknowledges the August 27, 2020 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,
'Pt 0
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
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The Town
Weaverville
NORTH CAROLINA
8-27-2020
The Town of Weaverville would like to ask for renewal of our NPDES permit # NC0085154.
The only changes that have been made to our system are as follows:
We have started dechlorinating with Calcium thiosulphate vs the Sulphur dioxide.
We now pump our sludge out once a year it is dried and hauled to the buncombe county
landfill.
Our Filters have been rebuilt with new media, so we are using less backwash water now.
We now recycle about 75% of our process water. NOT backwash water.
Thank you.
Jared Trent Duncan, ORC
Lawrence T. Sprinkle Jr. WTF
30 South Main Street • Weaverville, NC 28787 (PO Box 338)
[phone] • Fax [phone]
www.weaverviUenc.org

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 NCO0851-5
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
Town of Weaverville
Lawrence T. Sprinkle Jr. Water Treatment Facility
PO Box 338
Weaverville
NC, 28787
[phone]
(828)645776
[e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road 50 Sam Road
City Weaverville
State / Zip Code NC, 28787
County Buncombe
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 Town of Weaverville
Mailing Address PO Box 338
City Weaverville
State / Zip Code NC,28787
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public ED
Page 1 of 4 Version 512012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
S. 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)
❑ 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 (Ivy River)
7. Describe the treatment process(es) for the raw water:
Raw water is injected with Delpac 2020 (Aluminum Chloride Hydroxide Sulfate) and 12.5%
Caustic (Sodium Hydroxide) before reaching our Up -flow clarifier. Then it is injected again at the
start of our conventional treatment process at the flash mixer. Water then runs through settling
basins to dual media filters. At this point chlorine gas is injected for disinfection. Once filtered
we adjust the PH with caustic and add a corrosion inhibitor (phosphate) then it flow to our
storage tank to be pumped to town.
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Our 250,000 gallon waste basin receives all of our process water and backwash water, this water
is injected with Captor (calcium thiosulphate) to remove the chlorine residual before it enters
the waste basin. We also empty our settling basins into our waste basins biannually. The
clarified water is decanted to the designated stream and all sludge is pumped out of the basin
and dried once a year by a contract company and disposed of at the Buncombe county landfill.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: 6 Duration: Length of Plant run after settled.
11. Plant design potable flowrate 1.5 MGD
Backwash or reject flow .025 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Unnamed Tributary to the Ivy river
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Page 2 of 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 No x
Ammonia nitrogen / Chloramines Yes No x
Zinc -orthophosphate or sweetwater CP1236 Yes No x
List any other additives below:
Delpac 2020 ( Aluminum Chloride Hydroxide Sulfate)
12.5% Caustic (sodium Hydroxide), Ortho Phosphohate, Chlorine gas
Calcium Thiosulfate
14. Is this facility located on Indian country? (check one)
Yes ❑
Emanl
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 points] 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 1-15:
> 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.
Signing
'all
OhL
Title _
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
Page 3 of 4 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
imprisonment not to exceed sic 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

The Town
Weaverville
NORTH CAROLINA
Lawrence T. Sprinkle Jr. Water Treatment Facility
Wastewater Sludge Management Plan
The Lawrence T. Sprinkle Jr. Water treatment Facility is a 1.5 mgd municipal water treatment
facility. The facility incorporates the use of an up -flow clarifier for pretreatment of surface
water. After clarifier treatment process is conventional in design.
We have a 250,000 gallon waste clarification basin for process and backwash water collection
and clarification. Clarified waster water is decanted via the use of joined pipe with winch depth
control. Decant of waste waters are controlled by the following procedures.
Waste waters collected in the waste basin are allowed to settle to acceptable limits set forth in
NPDES permit #0085154 requirements. Settled water meeting NPDES requirements are
periodically removed using a winch controlled decant pipe. Sludge generated in process is
pumped out once a year by a contractor and dried via belt press and hauled to the Buncombe
County Landfill. Disposal is in accordance with North Carolina General Statues regulating
waste disposal.
Daily average effluent is calculated by totaling all filter wash waters, calculated process sample
pump totals and basin volume if drained for cleaning. Typically, the effluent is estimated over
a 7-day period. No effluent metering device is in place.
Jared Trent Duncan, ORC
Lawrence T. Sprinkle Jr. Water Treatment Facility
50 Sams Road,
eaverville, NC 28787
P -
30 South Main Street • Weaverville, NC 28787 (PO Box338)
[phone] • Fax [phone]
www.weavervillenc.oM

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NCO085154 State Grid: DSSE Facility
Latitude: 35°4655" US03 Quad: Mars Hill, NC Location
Longtude:22433'17"
River Basin: French Broad
Stream Gass WS-II CA
Subbasim 40304 Town or We
ReceiviogStreem: UT IvgRiver North Iw River WtP