NC0041696_Pretreatment Review of Industrial Waste Survey (IWS)_20201230

DocuSign Envelope ID: 7F65A9DD-6E41-4563-ABF9-59A9821 FFA72
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
Via Electronic Mail ([e-mail])
Town of Valdese
Attn: Candace Cox
Pretreatment Coordinator
P.O. Box 339
Valdese, NC 28690
NORTH CAROLINA
Environmental Quality
12/30/20
Subject: Pretreatment Review of Industrial Waste Survey (IWS)
Program: Town of Valdese
WWTP: Lake Rhodiss — NPDES No/Permitted Flow: NC0041696/3.5 MGD
Burke County
Dear Candace Cox,
The Municipal Unit of the Division of Water Resources has reviewed the IWS for the Town of Valdese (Town).
The IWS was received by the Division on September 30, 2020. Additional information was requested, and the
revised IWS was submitted on November 23, 2020. Proper completion of an IWS is required by your NPDES
permit. The review completed on December 21, 2020, indicates that the IWS is adequate and meets the minimum
requirements of 40 CFR 403.8 (f) (2).
The Town's IWS included 25 industries from the Towns of Valdese, Drexel, and Rutherford College. 11
industries contribute 1.76 MGD of non -domestic flow. The City has 8 Significant Industrial Users (SIUs) with a
current industrial permitted flow of 3.3 MGD.
It is the responsibility of the POTW to continue efforts to ensure that any SIU, as defined by NCAC 15A 2H
.0903(b)(30) (A) through (D), are identified and subsequently added to the Town's pretreatment program. This
includes evaluating new IUs before they commence discharge and assessment of existing IUs.
Next IWS Due Date: December 30, 2025, unless conditions at the POTW change significantly and warrant an
earlier submittal. Furthermore, within 180 days of the effective date of any reissued/modified NPDES permit, the
Permittee would be required to submit a written technical evaluation of the need to revise local limits to the
Division. Pursuant to 15A NCAC 02H .0907(b), either the Division or the Permittee may initiate pretreatment
program revisions. Any additional conditions or requirements to the Permittee related to pretreatment or
pretreatment program updates must be complied with separately from this approval action.
If you have any questions or comments, please contact Diana Yitbarek at diana.yitbarekkncdenr.gov or at
[phone]. Thank you for your continued cooperation with the Pretreatment Program.
Sincerely,
Do''c''ulISi,w,gne''d byy�:� �', f,,.'' `
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for S. Daniel Smith, Director
Division of Water Resources
Attachments: Revised IWS and Correspondence
Ec: Tim Heim, Asheville Regional Office (ARO)
Municipal Unit File and Central Files (Laserfische)
D E Q J� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH C oROLINA -
oapanmem reawmamamaioaarN /� 919.707.9000
dyNaldese iws_006 2020