NC0020761_202305PCI_20230530

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
Holly Minton
Town Manager
PO Box 218
North Wilkesboro, NC 28659
NORTH CAROLINA
Environmental Quality
June 14, 2023
SUBJECT: Pretreatment Compliance Inspection (PCI)
Town of North Wilkesboro / Thurman Street WWTP
Main Program Permit (NPDES) #NC0020761
Wilkes County
Dear Ms. Minton:
On 5/11/2023 a Pretreatment Compliance Inspection (PCI) was performed by Tricia Lowery of the
Winston-Salem Regional Office. Justin Shell was present for the inspection. The purpose of this
inspection was to determine the effectiveness of the Town'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 2.0 MGD permitted facility. The Town has 2 Significant Industrial Users (SIUs), both of which
are categorical. The publicly owned treatment works (POTW) had no violations in 2022 and no violation
in the first 5 months of 2023.
POTW Interview
There are no plant problems related to pretreatment issues. Neither SIU was in SNC for 2022. LTMP
data is in order and being conducted as required. Permits are current. Inspections are being conducted as
required of program. The 2 industries are 433 categorical users and files contain TOMP and slug control
plans.
Pretreatment Program Elements Review
The Headworks Analysis (HWA) was last approved on 10/7/2021. The next HWA is due 12/27/2026.
The IWS was last approved on 2/10/2023. The next IWS is due 10/l/2028.
The Sewer Use Ordinance (SUO) was approved on 4/30/2012.
The Enforcement Response Plan (ERP) was submitted on 2/12/2020 and approved on 2/14/2020.
The Long -Term Monitoring Plan (LTMP) was submitted 7/1/2021 and has not received an approval letter
as of 5/11/2023.
DffNorth Carolina Department of Environmental Quality I Division of Water Resources
oan caaouNn
Winston-Salem Regional Office 1 450 W. Hanes Mill Rd, Suite 300 I Winston-Salem, North Carolina 27105
M336.776.9800
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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 Gardner Glass (#0001) revealed that the monitoring data was well organized and
compliant.
A review of the file for Johnston Casuals (#0002) revealed that the monitoring data was well organized and
compliant.
The slug control plan for Gardner Glass (#0001) was in good order.
The slug control plan for Johnston Casuals (#0002) was in good order.
Action Items
No other action items were noted.
The pretreatment program is considered satisfactory. Justin Shell runs an adequate pretreatment program.
If you have any questions, please contact Tricia Lowery or me at [phone].
Sincerely,
EDocu Signed by:
L.Jn. -T. 5mJtr
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
REQ� North Carolina Department ofEnvironmental Quality I Division ofWater Resources
Winston-Salem Regional Office 1 450 W. Hanes Mill Rd, Suite 300 1 Raleigh, North Carolina 27105
NORTH CAROLINA 336.776.9800
naparMeM of EmironmanW 9uallly

NORTH CAROLINA DIVISION OF WATER RESOURCES
PRETREATMENT COMPLIANCE INSPECTION (PCI) REPORT
Water Resources
ENVIRONMENTAL QUALITY
BACKGROUND INFORMATION [Complete Prior To PCI; Review Program Info Database Sheet(s)]
1. Control Authority (POTW) Name: North Wilkesboro / Thurman Street WWTP
2. Control Authority Representative(s): Justin Shell
3. Title(s): Pretreatment Coordinator
4. Last Inspection Date: 6/23/2022 Inspection Type (Check One): ❑ PCI ® Audit
5. Has Program Completed All Requirements from the Previous Inspection and Program Info Sheet(s)? N YES ❑ NO
6. Is POTW under an Order That Includes Pretreatment Conditions? ❑ YES ® NO
Order Type, Number, Parameters:
Are Milestone Dates Being Met? ❑ YES ❑ NO
ICIS CODING
Main Program Permit Number MM/DD/YY
NC 0020761 Permit expires: 6/30/2026
7. Current Number Of Significant Industrial Users SIUs ?
2
8. Number of SIUs With No LUP, or With an Expired IUP?
0
9. Number of SIUs Not Inspected By POTW in the Last Calendar Year?
0
10. Number of SIUs Not Sampled By POTW in the Last Calendar Year?
0
11. Number of SIUs In SNC For Limits Violations During Either of the Last 2 Semi -Annual
Periods?
0
12. Number of SIUs in SNC For Reporting During Either of the Last 2 Semi -Annual Periods?
0
13. Number of SIUs in SNC with Pretreatment Schedule?
0
14. Number of SIUs on Schedules?
0
15. Current Number Of Categorical Industrial Users CIUs ?
2
16. Number of CIUs in SNC?
0
POTW INTERVIEW
17. Since the Last PCI, has the POTW had any NPDES Limits Violations?
If Yes, What are the Parameters and How are these Problems Being Addressed?
18. Since the Last PCI, has the POTW had any Problems Related to an Industrial
Discharge (Interference, Pass -Through, Blockage, Citizens' Complaints, Increased
Sludge Production, Etc.)?
If Yes, How are these Problems Being Addressed?
19. Which Industries have been in SNC for Limits or Reporting during either of the
Last 2 Semi -Annual Periods? Not Been Published for Public Notice?(May refer to
PAR if Excessive SIUs in SNC)
20. Which Industries are on Compliance Schedules or Orders? For all SIUs on an
Order, Has a Signed Copy of the Order been sent to the Division?
21. Are Any Permits or Civil Penalties Currently Under Adjudication? If Yes, Which
Ones?
❑ YES N NO
❑ YES ONO
SNC for Limits: na
SNC for Reporting: na
Not Published: na
NA
❑ YES N NO
NC DWR Pretreatment Compliance Inspection (PCI) Form Updated August 2022 Page 1

LTMP/STMP FILE REVIEW:
22. Is LTMP/STMP Monitoring Being Conducted at Appropriate Locations and Frequencies? MYES ❑ NO
23. Are Correct Detection Levels being used for all LTMP/STMP Monitoring? MYES ❑ NO
24. Is LTMP/STMP Data Maintained in a Table or Equivalent? ®YES ❑ NO Is Table Adequate? ®YES ❑ NO
25. All LTMP/STMP effluent data reported on Discharge Monitoring Report? MYES ❑ NO (Division Inspector, please verify
yourself.)
26. If NO to 23 - 26, list violations
27. Should any Pollutants of Concern be Eliminated from or Added to LTMP/STMP? ❑ YES M NO
If yes, which ones? Eliminated:
Added:
28. PRETREATMENT PROGRAM ELEMENTS REVIEW— Please review POTW files, verify POTW has copy of Program Element
in their files_ comnlete with sunnortine documents and conv of PERCS Annroval Letter. and dates consistent with Program Info:
Program Element
Last Submittal
Date In file?
Last Approval
Date In file
Date Next Due,
If Applicable
Headworks Analysis (HWA)
10/21/2021
M Yes ❑ No
10/7/2021
M Yes ❑ No
12/27/2026
Industrial Waste Survey (IWS)
9/14/2022
M Yes ❑ No
2/10/2023
M Yes ❑ No
10/1/2028
Sewer Use Ordinance (SUO)
4/11/2012
M Yes ❑ No
4/30/2012
M Yes ❑ No
na
Enforcement Response Plan (ERP)
2/12/2020
M Yes ❑ No
2/14/2020
M Yes ❑ No
na
Long Term Monitoring Plan (LTMP)
7/1/2023
M Yes ❑ No
No letter yet
❑ Yes ❑ No
TBA
INDUSTRIAL USER PERMIT (IIJP) FILE REVIEW (3 I1JP FILE RF,VIEWS OR 1 FILF, RF,VTF,W AND 1 IT TNSPF,CTTON)
29. User Name 11
1. Gardner Glass IF
Johnston Casuals
30. IUP Number
0001
I 0002
31. Does File Contain Current Permit?
M Yes ❑ No I
M Yes ❑ No
I ❑ Yes ❑ No
32. Permit Expiration Date
9/30/2027
9/30/25
33. Categorical Standard Applied (I.E. 40 CFR, Etc.) Or
433
433
N/A
34. Does File Contain Permit Application Completed
M Yes ❑ No
M Yes ❑ No
❑ Yes ❑ No
Within One Year Prior to Permit Issue Date?
35. Does File Contain an Inspection Completed Within
M Yes ❑ No
M Yes ❑ No
❑ Yes ❑ No
Last Calendar Year?
36. a. Does the File Contain a Slug/Spill Control Plan?
a M Yes ❑ No
a. M Yes ❑ No
a. ❑ Yes ❑ No
b. If No, is One Needed? (See Inspection Form from
b. ❑ Yes ❑ No
b. ❑ Yes ❑ No
b. ❑ Yes ❑ No
POTW
37. For 40 CFR 413 and 433 TTO Certification, Does
M Yes ❑ No ❑ NA
M Yes ❑ No ❑ NA
Yes El No El NA
File Contain a Toxic Organic Management Plan
F
TOMP ?
38. a. Does File Contain Original Permit Review Letter
a. ®Yes ❑No
a. ❑X Yes ❑No
a. ❑Yes ❑No
from the Division?
b. All Issues Resolved?
b. ❑ Yes ❑ No N/A ®
b. M Yes ❑ No N/A ❑
b. ❑ Yes ❑ No N/A ❑
39. During the Most Recent Semi -Annual Period, Did the
M Yes ❑ No
M Yes ❑ No
❑ Yes ❑ No
POTW Complete its Sampling as Required by IUP,
including flow?
40. Does File Contain POTW Sampling Chain -Of-
M Yes ❑ No
I
M Yes ❑ No
❑ Yes ❑ No
F
Custody Forms?
41. During the Most Recent Semi -Annual Period, Did the
M Yes ❑ No ❑ NA
M Yes ❑ No ❑ NA
❑ Yes ❑ No ❑ NA
SIU` Complete its Sampling as Required by IUP,
including flow?
41b. During the Most Recent Semi -Annual Period, Did
M Yes ❑ No ❑ NA
F Yes ❑ No ❑ NA
Yes El El NA
F
SIU submit all reports on time?
NC DWR Pretreatment Compliance Inspection (PCI) Form Updated August 2022 Page 2

42a. For categorical IUs with Combined Wastestream
Formula (CWF), does file include process/dilution
flows as Required by IUP?
42b. For categorical IUs with Production based limits,
does file include production rates and/or flows as
Required by IUP?
43a. During the Most Recent Semi -Annual Period, Did
the POTW Identify All Limits Non -Compliance from
Both POTW and SIU Sampling?
43b. During the Most Recent Semi -Annual Period, Did
the POTW Identify All Reporting_Non-Compliance
from SIU Sampling?
44. a. Was the POTW Notified by SIU (Within 24 Hours)
of All Self- Monitoring Violations?
b. Did Industry Resample and submit results to POTW
Within 30 Days?
c. If applicable, Did POTW resample within 30 days
of becoming aware of SIU limit violations in the
POTW's sampling of the SIU?
46. During the Most Recent Semi -Annual Period, Was
the SIU in SNC?
47. During the Most Recent Semi -Annual Period, Was
Enforcement Taken as Specified in the POTW's ERP
(NOVs, Penalties, timing, etc.)?
48. Does the File Contain Penalty Assessment Notices?
49. Does The File Contain Proof Of Penalty Collection?
50. a. Does the File Contain Any Current Enforcement
Orders?
b. Is SIU in Compliance with Order?
51. Did the POTW Representative Have Difficulty in
Obtaining Any of This Requested Information For
You?
FILE REVIEW COMMENTS:
Files are in good order.
❑ Yes ❑ No M NA
❑ Yes ❑ No M NA
M Yes ❑ No ❑ NA
M Yes ❑ No ❑ NA
❑ Yes ❑ No M NA
❑ Yes ❑ No ❑ NA
M Yes ❑ No
M Yes ❑ No
❑ Yes ❑ No
❑ Yes ❑ No M NA
❑ Yes ❑ No M NA
❑ Yes ❑ No ❑ NA
a. ❑ Yes ❑ No N NA
b ❑ Yes ❑ No N N/A
c. ❑ Yes ❑ No N N/A
a. ❑ Yes ❑ No N NA
b ❑ Yes ❑ No N N/A
c. ❑ Yes ❑ No N N/A
a. ❑ Yes ❑ No ❑ NA
b ❑ Yes ❑ No ❑ N/A
c. ❑ Yes ❑ No ❑ N/A
❑ Yes M No
❑ Yes M No
❑ Yes ❑ No
❑Yes ❑ No N N/A
❑Yes ❑ No N N/A
❑Yes ❑ No ❑ N/A
❑ Yes ❑ No M NA
❑ Yes ❑ No M NA
❑ Yes ❑ No ❑ NA II
❑ Yes ❑ No M NA
❑ Yes ❑ No M NA
❑ Yes ❑ No ❑ NA
a. ❑ Yes ❑ No N/A N
b ❑ Yes ❑ No N/A N
a. ❑ Yes ❑ No N/A N
b ❑ Yes ❑ No N/A N
a. ❑ Yes ❑ No N/A ❑
b ❑ Yes ❑ No N/A ❑
❑ Yes M No
❑ Yes M No
❑ Yes ❑ No
NC DWR Pretreatment Compliance Inspection (PCI) Form Updated August 2022 Page 3

NO AUDIT CONDUCTED
INDUSTRY INSPECTION ICIS CODING:
Main Program Permit Number MM/DD/YY
1. Industry Inspected:_
2. Industry Address:
3. Type of Industry/Product
4. Industry Contact: Title:
Phone: Fax:
5. Does the POTW Use the Division Model Inspection Form or Equivalent? ❑ YES ❑ NO
6. Did the POTW Contact Conduct the Following Parts of the Industrial Inspection Thoroughly?
Comments:
A. Initial Interview
❑ YES ❑ NO
B. Plant Tour
❑ YES ❑ NO
C. Pretreatment Tour
❑ YES ❑ NO
D. Sampling Review
❑ YES ❑ NO
E. Exit Interview
❑ YES ❑ NO
Industrial Inspection Comments:
OVERALL SUMMARY AND COMMENTS:
Comments: Pretreatment program is satisfactory.
Requirements: na
Recommendations: none
NOD: OYES ®NO
NOV: OYES ®NO
QNCR: OYES ®NO
POTW Rating:
Satisfactory ® Marginal ❑ Unsatisfactory-0
PCI COMPLETED BY: Tricia Lowery DATE: 5/11/2023
NC DWR Pretreatment Compliance Inspection (PCI) Form Updated August 2022 Page 4