NC0026123_PCI_Cover Letter_20220516

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
Michael Rhoney
Water Resources Director
P.O. Box 1106
Asheboro, NC 27204
NORTH CAROLINA
Environmental Quality
May 16, 2022
SUBJECT: Pretreatment Compliance Inspection (PCI)
Asheboro WWTP
Main Program Permit (NPDES) #NC0026123
Randolph County
Dear Mr. Rhoney:
On May 10, 2022, a Pretreatment Compliance Inspection (PCI) was performed by Tricia Lowery of the
Winston-Salem Regional Office. Sarah Laughlin and Bobby Crandall was present for the inspection. The
purpose of this inspection was to determine the effectiveness of the Asheboro's pretreatment program,
which includes reviewing the files, POTW plant performance, industry monitoring data, and adherence to
the enforcement response plan (ERP).
Background
This is a 9.0 MGD permitted facility. The city has 14 Significant Industrial Users (Sills), 7 of which are
categorical. The publicly owned treatment works (POTW) had no pretreatment related violations in 2021.
POTW Interview
There are no plant problems related to pretreatment issues. Weekly dioxane sampling with DEQ-DWR is
ongoing and conducted every Friday. No SIU's were SNC for 2021. The pretreatment program has 33
dental offices and all in are compliance with program.
Pretreatment Program Elements Review
The Headworks Analysis (HWA) was last approved on 6/30/2017. The next HWA is due 6/1/2022.
The IWS was last approved on 5/8/2018. The next 1WS is due 4/15/2023.
The Sewer Use Ordinance (SUO) was approved on 11/5/2012.
The Enforcement Response Plan (ERP) was submitted on 1/12/2020 and approved on 2/5/2020.
The Long -Term Monitoring Plan (LTMP) was submitted 2/18/2020 and approved on 5/7/2020.
GDE
NORTH C OLI JA '
omm mr� ep..of o�.i
North Carolina Department of Environmental Quality I Division of Water Resources
Winston-Salem Regional Office 1450 W. Hanes Mill Rd, Suite 300 I Winston-Salem, North Carolina 27105
336.776.9800

LTMP File Review
The Long -Term Monitoring Plan (LTMP) is being conducted at the proper locations and frequencies
(2/year).
Industrial User Permit (IUP) File Review
A review of the file for Covanta (#5049) revealed that the monitoring data was well organized and
compliant.
A review of the file for Bossong (#0822) revealed that the monitoring data was well organized and
compliant.
A review of the file for Premier Power Coating (#3734) revealed that the monitoring data was well
organized and compliant.
The slug control plan for Covanta (#5049) was in good order.
The slug control plan for Bossong (#0822) was in good order.
The slug control plan for Premier Power Coating (#3734) was in good order.
Action Items
No other action items were noted.
The pretreatment program is considered satisfactory. Sarah Laughlin and Bobby Crandall run an excellent
pretreatment program. If you have any questions, please contact Tricia Lowery at [phone] or me at
[phone].
Sincerely,
LDocuSigned by:
._0, l.<JMACr
145B49E225C94EA...
Lon T. Snider
Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ — WSRO
Attachment:
1. NC DWR Pretreatment Compliance Inspection (PCI) Report
cc: Municipal Permitting Unit — Keyes McGee
WSRO Electronic Files
D_E
NORTH CAROLINA
gaparMeM of Environment,/quay
North Carolina Department of Environmental Quality I Division of Water Resources
Winston-Salem Regional Office 1450 W. Hanes Mill Rd, Suite 300 I Raleigh, North Carolina 27105
336.776.9800