NC0089389_More Information (Received)_20190130

ROY COOPER
MICHAEL S. REGAN
LINDA CULPEPPER
NORT N CAROLINA
Environmental Quality
January 9, 2019
CERTIFIED MAIL 7016 2140 0000 4371 0080
RETURN RECEIPT REQUESTED
Mr. Scott Buffkin, Town Manager
Town of Jonesville
1503 NC Hwy 67
Jonesville, NC 28642
Subject: Request for Additional Information
NPDES Renewal Application
Jonesville WTP
NPDES permit NCO089389
Yadkin County
Dear Mr. Buffkin:
The Division has reviewed your application, received on April 2, 2018, for renewal of NPDES
permit NC0089389. To enable us to complete our review in accordance with N.C.G.S. 143-215.1
and 15A NCAC 02H .0105, we need additional or revised information regarding your discharge:
1. Please confirm the treatment process of raw water, including all additives used for cleaning
or disinfection, as required in Section 7 of the permit renewal application.
2. Please confirm the treatment process of wastewater as required in Section 8 of the permit
renewal application. The renewal application only indicates that a valve is used to release
treated water back to the river.
3. Please confirm the maximum potential discharge (in MGD) of wastewater from Outfall 001
into the unnamed tributary to the Yadkin River [Stream Segment: 12-(52.5)], as the
information provided in Section I 1 of the permit renewal application differs from that in the
Division's files.
4. Please provide an updated flow schematic. The schematic provided with the permit renewal
application does not show flow volumes at all points in the treatment process, where all
chemicals used in the treatment processes are added, and where the wastewater is sent, as
required in Section 15 of the permit renewal application.
This information is required in order to continue reviewing your request for renewal of the
Jonesville WTP NPDES Permit NC0089389.
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North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Servicc Center, Raleigh, Noith Carolina 27699-1617
919-707-9000

Town of Jonesville WTP
339 Shaw Street
Jonesville, NC 28642
Dear Brianna Young:
In regard to the email concerning the subject: Request for Additional Information NPDES Renewal
Application Jonesville WTP NPDES permit NC0089389 Yadkin County; I will address each topic in the
order as received.
1. The Town of Jonesville WTP is an A Surface Water Treatment Plant, with a 1.0 MG maximum rating
per day, although the maximum flow each day is only 600 GPM influent and 590 GPM effluent. The
source water is drawn from the Yadkin River and pumped up to our 8.0 MG reservoir, directly above the
Water Treatment Plant. The first chemical injected into the raw water is Aluminum Sulfate 48% and
after this , Caustic Soda 25%. These are injected prior to the pre-treatment of the raw water. Next the
water enters the Actiflow Micro -Sand Treatment Unit where a small dose of polymer ( 0.30 mg/I ) is
added to help bid the turbidity for settling. The Actiflow process only requires 20 to 30 minutes of
treatment time. These are the only chemicals added in the treatment process, prior to the discharge
valve. This discharge valve has not been opened since the start up of the new Water Treatment Plant in
2013.
2. The discharge valve is ( as described in prior application ) a gate valve that is to be opened manually,
only in the event of a major error in the treatment process ). Since start-up in 2013, this has not had to
be used. The gate valve would be closed manually once the error has been corrected.
3. The maximum potential discharge from Outfall 001, to the Yadkin River: would be 0.85 MG. This
would be in the unlikely event of not being able to correct the problem within a 24 hour day.
4. Updated schematic included.
Please feel free to come and inspect our Water Plant and the discharge valve. I know that this in non -
conventional type of discharge and it's application to our needs.
Thank You,
Billy Wood ORC

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