NCS000346_Fact sheet binder_20240612

DEQ / DEMLR
FACT SHEET FOR NPDES INDUSTRIAL INDIVIDUAL
STORMWATER PERMIT DEVELOPMENT
Basic Information for Permit Issuance and Renewals:
Permit Writer/Date Brianna Young 5/29/2024
Permit Number NCS000346
Owner/Facility Name Insteel Wire Products Company/Insteel Wire
Products
SIC(NAICS)Code/Category 3315 (331222)/Steel wiredrawing and steel nails
andspikes Steel wiredrawing)
Basin Name/Sub-basin number Yadkin Pee-Dee/03-07-03
Receiving Stream/HUC SWO01: UT to Ararat River/030401010807
SWO02 through SWO05: UT to Lovills Creek/
030401010803
Stream Classification/Stream Segment SW001: C/ 12-72-(4.5)
SWO02 through SWO05: C/ 12-72-8-(3)
Is the stream impaired on 303 d list]? Yes; See Section 2 below
Any TMDLs? No
Any threatened and/or endangered species? No
Any compliance concerns? See Section 2 below
Any permit mods since lastpermit? No
New expiration date 6/30/2029
Comments on Draft Permit? See Section 6 below
Section 1. Facility Activities and Process:
Insteel Wire Products manufactures steel wire mesh used in concrete reinforcing (constructing steel
skeleton in walls, floors, bridges, etc). Steel rod is drawn into desired wire diameter and welded together
through a pressure resistance welding process. The facility purchases coiled, round, steel rod of different
diameters to be drawn to a desired wire size The wire is put on carriers and taken to pressure resistant
welding machines. The wire is made into finished products of welded wire sheets and rolls for concrete
reinforcement.
Outfall SW001:
Drainage area consists of diesel AST, kerosene AST, scrap metal and trash dumpster, and storage of raw
material(rod coils) and finished steel mesh.
Outfall SWO02:
Drainage area consists of storage of raw material (rod coils) and finished steel mesh.
Outfall SWO03:
Drainage area consists of storage of raw material (rod coils) and finished steel mesh.
Outfall SWO04:
Drainage area consists of storage of finished steel mesh.
Outfall SWO05:
Drainage area consists of storage of finished steel mesh.
Page 1 of 6

Why Industrial Sites with Stormwater are Subject to a Permit: Federal NPDES regulations define
stormwater discharge associated with industrial activity in 40 CFR §122.26 (b)(14) as: "the discharge
from any conveyance that is used for collecting and conveying storm water and that is directly related to
manufacturing,processing or raw materials storage areas at an industrial plant. The term does not
include discharges from facilities or activities excluded from the NPDES program under this part 122.
For the categories of industries identified in this section, the term includes, but is not limited to, storm
water [sic] discharges from industrial plant yards; immediate access roads and rail lines used or traveled
by carriers of raw materials, manufactured products, waste material, or byproducts used or created by
the facility; material handling sites; refuse sites; sites used for the application or disposal of process
waste waters (as defined at part 401 of this chapter); sites used for the storage and maintenance of
material handling equipment; sites used for residual treatment, storage, or disposal; shipping and
receiving areas; manufacturing buildings; storage areas (including tank farms) for raw materials, and
intermediate and final products; and areas where industrial activity has taken place in the past and
significant materials remain and are exposed to storm water. For the purposes of this paragraph, material
handling activities include storage, loading and unloading, transportation, or conveyance of any raw
material, intermediate product, final product, byproduct or waste product. The term excludes areas
located on plant lands separate from the plant's industrial activities, such as office buildings and
accompanying parking lots as long as the drainage from the excluded areas is not mixed with storm
water [sic] drained from the above described areas."
Section 2. Monitoring Information and Compliance History:
• May 2020 to April 2023,benchmarks exceeded for:
o SW001: COD 1x, TSS 3x, zinc 2x, aluminum 4x
o SWO02: COD 1x, TSS 2x, zinc 2x, aluminum 4x
o SWO03: TSS 2x, aluminum 4x
o SWO04: Aluminum 1x
o SWO05: Aluminum 2x
o No analytical monitoring data provided for 2018 or 2019
o Only 1 analytical sample taken per year for 2020, 2021, and 2022
• No visual monitoring data provided for 2018, 2019, 2020, or first half of 2021
• Per information in the permit file history, SWO02 is the ROS for SW001, SWS003, and SW004,
but was rescinded with the 2018 permit renewal
• 2018 inspection found issues with the outfall locations: There appear to be more outfalls than are
indicated on the plans and there is some uncertainty about the drainage areas and discharge
points. It may be possible that some extra outfalls can be eliminated with berms, etc. to send flow
to existing outfalls.
o Per the March 2024 inspection report: Five (5) outfalls were observed at the facility at the
locations listed on the renewal application.
303(d) listing:
Lovills Creek(Lovell Creek) C 4. FW Miles
2C23 From Town of Mount Airy Water Supply Dam to Ararat River
PARAMETER IR CATEGORY CRFrER1A STATUS REASON FOR RATING 3030 YEAR
Benthos(Nar,AL, FW) F—IlExceeding Criteria I Fair, Poor or Severe Biodassification 201
Page 2 of 6

Threatened/Endangered Species:
There are no threatened/endangered species in the vicinity, however, there is one species of concern:
Gammon's Stenelmis Riffle Beetle (Stenelmis gammon;NC status: SR).
Section 3. Proposed Monitoring for Stormwater Discharges:
The Division considered potential pollutants from past and present industrial activities and data was
submitted for May 2020 to April 2023. Quantitative sampling included pH, TSS, COD, aluminum, and
zinc.
Parameters are based on potential pollutants in the drainage area, sampling results, and in some cases,
dependent upon future activities (e.g., ash removal through the drainage area). Below is a table of the
proposed monitoring for each outfall at the Insteel Wire Products site.
Outfalls SW001, SW002, SW003, SW004, and SWO05
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
H BASIS: Pollutant indicator and important to interpreting toxicity potential
p of metals.
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Quarterly monitoring
COD BASIS: Discharge potential indicator
Quarterly monitoring
Total Aluminum BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Lead BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Zinc BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Hardness BASIS: Monitoring for hardness dependent metals is required
Page 3 of 6

Stormwater Benchmarks and Tiered Response: Rather than limits,North Carolina NPDES
Stormwater permits contain benchmark concentrations. Stormwater benchmarks are numerical action
levels for stormwater monitoring. Benchmarks are not effluent limits, and benchmark exceedances are
not permit violations. Benchmarks provide facilities a tool for assessing the significance of pollutants in
stormwater discharges and the effectiveness of best management practices (BMPs). Benchmark
concentrations are intended as guidelines for the facility's development and implementation of the
Stormwater Pollution Prevention Plan (SWPPP).
Benchmark exceedances require the permittee to increase monitoring, increase management actions,
increase record keeping, and/or install stormwater BMPs in a tiered program. The permit establishes a
tiered approach to specify actions the permittee must take in response to analytical results above
benchmark concentrations. The tiered structure of the permit provides the permittee and DEMLR wide
flexibility to address issues that may arise with one or more parameters and/or outfalls.
Metals benchmarks are calculated to mimic acute water quality standards and with the guidance of
DWR. NC DWR follows established federal procedures for calculating acute standards when developing
the benchmarks. Just like the acute standards, metals benchmarks normally reflect one half of the
calculated Final Acute Value (the "1/2 FAV"). In most cases, translation into total recoverable values is
based on an assumed hardness of 25 mg/L and a total suspended solids (TSS) concentration of 10 mg/L.
Acute standards protect aquatic life from negative impacts of short-term exposure to higher levels of
chemicals where the discharge enters a waterbody. The Stormwater Permitting Program applies this
approach because of the ephemeral nature of rainfall events.
The Division may evaluate results to determine if a smaller suite of parameters for some outfalls is
adequate to characterize potential pollution or BMP effectiveness. For example, one or more metals or
other parameters may serve as an adequate tracer for the presence of ash pollution during disturbance or
ash removal in specific drainage areas at this site. For parameters that do not have a stormwater
benchmark, the Division may develop a benchmark value if appropriate toxicity data become available
or if rising trends in concentrations suggest a persistent source.
A summary of the benchmarks in the draft permit, and their basis, is below:
Parameter Benchmark Basis
Total Suspended 100 mg/L National Urban Runoff Program(NURP) Study, 1983
Solids TSS
H 6 s.u. —9 s.u. NC Water Quality Standard(Range)
Non-Polar Oil & Review of other state's daily maximum benchmark
Grease 15 mg/L concentration for this more targeted O&G;NC WQS that
EPA Method 1664 does not allow oil sheen in waters
SGT-HEM
COD 120 mg/L BPJ; Generally found at levels 4x BOD5 in domestic
wastewaters
Total Aluminum 750 /L '/2 FAV
Lead Total 75 /L Acute Aquatic Criterion, '/2 FAV
Zinc Total 126 /L Acute Aquatic Criterion, '/2 FAV
Stormwater Pollution Prevention Plan: The proposed permit conditions reflect the EPA and NC's
pollution prevention approach to stormwater permitting. The Division's maintains that implementation
Page 4 of 6

of Best Management Practices (BMPs) and traditional stormwater management practices that control the
source of pollutants meets the definition of Best Available Technology (BAT) and Best Conventional
Pollutant Control Technology(BCT). The permit conditions are not numeric effluent limitations but are
designed to be flexible requirements for implementing site-specific plans to minimize and control
pollutants in stormwater discharges associated with the industrial activity. Title 40 Code of Federal
Regulations (CFR) §122.44(k)(2) authorizes the use of BMPs in lieu of numeric effluent limitations in
NPDES permits when the agency finds numeric effluent limitations to be infeasible. The agency may
also impose BMP requirements which are "reasonably necessary" to carry out the purposes of the Act
under the authority of 40 CFR 122.44(k)(3). The conditions proposed in this draft permit are included
under the authority of both of these regulatory provisions. In essence, the pollution prevention and BMP
requirements operate as limitations on effluent discharges that reflect the application of BAT/BCT.
Flexibility in Tier Responses: Tier Two actions provide an opportunity for the permittee to propose an
alternative monitoring plan for approval by the Region:
• Alternatively, in lieu of steps 2 and 3, the permittee may, after two consecutive exceedances,
exercise the option of contacting the DEMLR Regional Engineer as provided below in Tier
Three. The Regional Engineer may direct the response actions on the part of the permittee as
provided in Tier Three, including reduced or additional sampling parameters or frequency.
• If pursuing the alternative above after two consecutive exceedances, the permittee may propose
an alternative monitoring plan for approval by the Regional Engineer.
The permit therefore allows the permittee to petition the Regional Office for monitoring changes sooner
than Tier Three (upon any four benchmark exceedances) and gives guidance on one option to take. For
example, the permittee may request that mercury only be monitored semi-annually under the tiers, or
that only parameters over the benchmark be monitored more frequently. In this way, changes to the
monitoring scheme for any outfall could be handled outside of a permit modification.
Other Proposed Requirements:
• It is standard for Stormwater Pollution Prevention Plan(SWPPP)requirements to include an
annual certification that stormwater outfalls have been evaluated for the presence of non-
stormwater discharges, and if any are identified, how those discharges are permitted or otherwise
authorized.
• Requirement to submit a request for permit modification if the facility identifies or creates any
new outfalls, removes outfalls, or alters any drainage area that changes potential pollutants.
• The Division expects the permittee to apply best professional judgment and consider the safety
of its personnel in fulfilling sampling obligations under the permit.
• Federal regulations require electronic submittal of all discharge monitoring reports (DMRs). If a
state does not establish a system to receive such submittals, then permittees must submit DMRs
electronically to the EPA.
• Quarterly QualitativeNisual Monitoring to assure regular observation of outfalls throughout
year.
Section 4. Changes from previous permit to draft:
• Regulatory citations added
• Monitoring increased from semi-annually to quarterly for all parameters (qualitative and
quantitative)
Page 5 of 6

• "No discharge" clarifications made
• Feasibility study requirement removed per updated stormwater program requirements
• Annual online SWPPP certification requirement removed per updated stormwater program
requirements
• eDMR requirement updated
• Boilerplate language moved into body of the permit; boilerplate no longer attached
• Outfall-specific monitoring been implemented to reflect industrial activity and potential
pollutants specific to each discharge area
• Monitoring added for total lead as this was identified as a potential pollutant in the renewal app
• Monitoring for total hardness added for outfalls where monitoring for hardness dependent metals
is required
• Benchmarks updated for parameters per guidance from DWR Standards group on stormwater
benchmarks
Section 5. Changes from draft to final:
• None
Section 6. Discussions with the Facility and Regional Office:
• Initial contact with facility: 12/1/2023
• Initial contact with Regional Office: 12/1/2023
• Draft sent to CO peer review: N/A
• Draft sent to Regional Office: 4/17/2024
• Final permit sent for supervisor signature: N/A
Section 7. Comments received on draft permit:
• None
Page 6 of 6

WINSM v-SALEM
JOURNALL
See Proof on Next Page
AFFIDAVIT OF PUBLICATION
Winston-Salem Journal
418 N Marshall St
[phone]
State of Florida,County of Orange,ss:
Before the undersigned,a Notary Public duly commissioned,
qualified,and authorized by law to administer oaths,personally
appeared the Publisher's Representative,Yuade Moore,who by
being duly sworn deposes and says:,that he/she is authorized to
make this affidavit and sworn statement;that the notice or other
legal advertisement,a copy of which is attached hereto,was
published in the Winston-Salem Journal and that the said
newspaper in which such notice,paper document,or legal
advertisement was published,was at the time of each and every
such publication,a newspaper meeting all the requirements and
qualifications of Section 1-597 of the General Statutes of North
Carolina.
PUBLICATION DATES:
Apr.24,2024
NOTICE ID:PWBAmOakXQlx3TiKsKKi
PUBLISHER ID:COL-NC-600244
NOTICE NAME:STORMWATER PUBLIC NOTICE-NCS000346
Publication Fee:$373.63
(signed)`%3 MAO,ACMT-4P,
PAMELA BAE2
VERIFICATION :°' Notary Public-state of Floes
Commission#wi see7w
State of Florida ' oR f`o«�° Expires anWOW 14.MS
County of Orange !
Subscribed inmy presence and sworn to before me on this.. 04 24� �20 4 6"
Q
Notary.Public
Notarized remotely online using communication technology via Droof.
STORMWATER PUBLIC NOTICE-NCS000346 - Page 1 of 2

NORTH CAROLINA ENVIRONMENTAL
MANAGEMENT COMMISSION INTENT
TO ISSUE NPDES STORMWATER
DISCHARGE PERMITS
The North Carolina Environmental Management Commission proposes
to Issue NPDES stormwater discharge permits)to the persons))listed
below.Public comment or objection to the draft permits is Invited. Writ-
ten comments regarding the roposed permit will be accepted until 30
days after the publish date ofpthis notice and considered Inlhe final de-
termination regarding permit issuance and permit provisions.The Dlrec-
tor of the NC Division of Energy,Mineral,and Land Resources(DEMLR)
may hold a public hearing should there be a significant degree of ublic
interest.Please mail comments and/or Inforrnatlon requests to DLR
at 1612 Mall Service Center,Raleigh NC 276991612.
• Insteel Wire Products Company 11510 Carter;Street,Mount Airy,NC
270301 has regnested renewal of ft n .NCS000346 forthe Insteei Wire
Products factllt}r In Surry County.This facility discharges to an unnamed
tributary to the Ararat River and an unnamed tributary to Lovills Creek,
both in the Yadkin Pee-Dee River Basin.
Interested persons may visit DEMLR at 512 N.Salisbury street,Rale!ggh,
NC 27604 to review information on file.Additional Information on NP
DES permits and this notice may be found on our website:https://deq.
nc.gov/about/divisions/energy-mineral-and-land-resourcesIstormwa-
ter/stormwater--proggram/stormwater-pubtle-notice% or by contacting
Brianna Young at bdanna.yaungrdeq.nagov or 919-707-3647.
WSJ:April 24,2024.COL-NC-606244
STORMWATER PUBLIC NOTICE-NCS000346 - Page 2 of 2

Compliance Inspection Report
Permit:NCS000346 Effective: 06/05/18 Expiration: 05/31/23 Owner: Insteel Wire Products Company
SOC: Effective: Expiration: Facility: Insteel Wire Products-Surry
County: Surry 1510 Carter St
Region: Winston-Salem
Mount Airy NC 27030
Contact Person:Stephanie Ellis Title: EHS Leader Phone: [phone] Ext.3012
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On-Site Representative(s):
Related Permits:
Inspection Date: 03/19/2024 Entry Time 10:OOAM Exit Time: 10:30AM
Primary Inspector:Ashley J Vikara Phone: [phone]
Secondary Inspector(s):
Kimberly Turney
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Stormwater Discharge, Individual
Facility Status: ❑ Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page 1 of 3

Permit: NCS000346 Owner-Facility:lnsteel Wire Products Company
Inspection Date: 03/19/2024 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
The facility was inspected on March 19, 2024, to verify the outfalls. 5 outfalls were observed at the facility at the locations
listed on the renewal application.
Page 2 of 3

Permit: NCS000346 Owner-Facility:lnsteel Wire Products Company
Inspection Date: 03/19/2024 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? 0 ❑ ❑ ❑
#Were all outfalls observed during the inspection? ❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ❑
#Has the facility evaluated all illicit(non stormwater)discharges? ❑ ❑ 0 ❑
Comment:
Page 3 of 3

Young, Brianna A
From: Lane, Kimberly D. <[e-mail]>
Sent: Monday, December 4, 2023 9:15 AM
To: Young, Brianna A
Cc: Brown, Greg A.;Jacobson, Randall R.; Ballard,Joshua A.
Subject: [External] RE: Insteel Wire Products stormwater permit NCS000346
Attachments: Additional Information Response 12-4-23.pdf; NCW Stormwater Sampling Data.xlsx
Importance: High
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Good Morning Brianna,
I have attached a letter that addresses your request for additional information. Also,we did not have a qualifying rain
event during the next quarter following the sample taken on April 22, 2023. We were able to take a sample during the
rain event on November 21, 2023, but have not received the results back from the lab as of yet. Please let me know if
you have additional questions.
Thank you,
Kimberly D. Lane
Plant General Manager
ti 1T EEL
WIRE i'RUEJL1CTS
1510 Carter Street,Mount Airy,NC 27030
p(336)786-4042,3186
f(336)783-4486
[e-mail]
www.insteel.com
From:Young, Brianna A<[e-mail]>
Sent: Friday, December 1, 2023 12:18 PM
To: Brown, Greg A. <[e-mail]>
Cc:Jacobson, Randall R. <[e-mail]>; [e-mail]
Subject: Insteel Wire Products stormwater permit NCS000346
CAUTION:This e-mail is from an external source. Please exercise caution before opening attachments,clicking links,or following guidance.
Good morning,
I am working on renewing the individual stormwater permit for the Insteel Wire Products facility (NCS000346).
I need additional information in order to 1) confirm that the information I have is correct and 2) make sure the
permit adequately serves the needs of the facility. Please provide the following:
1

• Description of industrial activity occurring and chemicals stored onsite;
• Description of industrial activity in each drainage area; and
• An electronic spreadsheet summarizing all of the monitoring data that has been collected since the
effective date of the current permit. Please include all analytical and visual monitoring results from June
2018 to present.
Enter your stormwater permit number into the Stormwater Permit Summary Report and you will see a form that
includes the address of the facility, contact information for the permit, and the regulated stormwater outfall(s)
for the facility. Please review the facility information to make sure it is correct. Information can be updated
using the links provided below, where applicable:
• Facility/Company name or ownership: Name/Ownership Change Form
• Owner Affiliation (Legally responsible person; i.e., someone with the company who is designated to
represent the company per signatory requirements or another authorized representative): Permit Contact
Update Request Form
• Delegation of Signature Authority (DOSA): Permit Contact Update Request Form
• Billing contact: Permit Contact Update Request Form
• Permit contact: Permit Contact Update Request Form
• Facility contact: Permit Contact Update Request Form
• Facility address only: Email Bethany og ulias
• Stormwater outfall information: Email Bethany Georgoulias
• Visit the eDMR Six Steps website and complete Steps 1 and 2
• Pay outstanding permit fees: Stormwater ePUment website
Once I have the above listed information, I can continue my review. You will receive a draft permit for a 30-day
comment period. During this time we will be able to address any comments or concerns you have. During the
same 30-day period, the draft will be sent to a Regional Office staff member for review as well as out to public
notice. Once all comments and concerns are addressed, you may be issued a final permit.
Please contact me if you have any questions.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Lmaii correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
2

Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
This e-mail and any files transmitted with it are legally privileged,confidential and intended solely for the use of the individual or entity to
which they are addressed. If you have received this e-mail in error, please notify the sender and do not further disseminate,discuss, distribute
or forward this message.Any views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of
the Company.The recipient should check this e-mail and any attachments for the presence of viruses and the Company accepts no liability for
any damage caused by any virus transmitted by this e-mail.
3

IN T F=L
/��� WIRE PRODUCTS
December 4, 2023
NC DEQ/DEMLR
ATTN: Brianna Young
1612 Mail Service Center
Raleigh,NC 27699-1612
In RE: Insteel Wire Products Stormwater Permit#NCS000346
Dear Brianna,
I received your email dated December 1, 2023, requesting additional information with
regard to our stormwater permit. I have included responses below for everything except
for the spreadsheet of monitoring data, which is attached.
If you have any questions or need additional information, please feel free to contact me
directly at [phone], x.3186.
Description of industrial activity occurring:
Insteel Wire Products produces steel wire mesh used in concrete reinforcing by
drawing steel rod into desired wire diameters and welding the wire together
through a pressure resistance welding process.
Description of chemicals stored onsite:
We have oil storage with secondary containment.
Description of industrial activity in each drainage area:
Outfall
# Location_ Shvcture _ Lrdustrial Activities in drainage area
Lovills Storagehnovement of raw material (rod coils)and finished
I Creels Ditch goods(steel mesh), Diesel fueling, Kerosene fill station, and
Scrap metal and trash dum ster.
Lovills Storagehnovement of raw material (rod coils)and finished
2 Ditch Creels goods steel mesh).
Lovills Storagehnovement of raw material(rod coils)and finished
3 Ditch Creels goods steel mesh .
4 Lovills Ditch Storagehnovement of finished goods(steel mesh).
Creels
5 Lovills Ditch Storagehnovement of finished goods(steel mesh).
Creels
1510 CARTER ST/MOUNT AIRY,NORTH CAROLINA 270301336-786-4042

P7IN T L
;;i409 WIRE PRODUCTS
Analytical monitoring comments:
We were able to take a stoimwater sample during a rain event on April 22, 2023,
but we did not have a qualifying rain event during the 3rd quarter 2023.
However, we were able to take a sample during a rain event on November 21,
2023, but are still awaiting results.
Respectfully,
Kimberly Lane
Plant General Manager
1510 CARTER ST/MOUNT AIRY, NORTH CAROLINA 27030/336-786-4042

Outfall 1 Outfall 2 Outfall 3 Outfall 4 Outfall 5
Parameter COD T55 Zn Al pH COD (794
Zn Al pH COD T55 Zn Al pH COD T55 Zn Al pH COD TSS Zn Al pH
[mg/L] [mg/L] [mg/L] [mg/L] IS.U.] [mg/L] [mg/1-1 [mg/L] [mg/1-1 [S.U.] [mg/L] [mg/L] [mg/L] [mg/1-1 [S.U.] [mg/L] [mg/L] [mg/L] [mg/L] [S.U.] [mg/1-1 [mg/L] [mg/L] [mg/1-1 [S.U.]
Benchmark 120 100 0.126 0.75 6-9 1200.126 a75 6-9 120 100 0.126 0.75 6-9 120 100 0.126 0.75 6-9 120 100 0.126 0.75 6-9
Sample Date Sample Period
5/21/2020 2020-Period 1 200 720 0.29 25 DNS BRL BRL 2.3 DNS BRL 10 BRL 0.95 DNS BRL BRL BRL 0.64 DNS BRL 2.7 BRL 0.79 DNS
7/21/2020 Internal Check DNS BRL 0.03 6.97
8/17/2021 2021-Period 2 BRL 301 0.056 2.6 8.61 107 0.18 24 8.35 51.4 131 0.057 5 6.84 BRL 13 0.011 0.36 7.4 BRL 14 BRL 0.41 8.2
5/23/2022 2022-Period 1 106 659 0.245 14.6 8.09 151 0.205 26.7 7.01 64.7 166 0.11 8.82 7.59 44.3 86.5 0.0481 3.63 7.05 73.8 14.9 BRL 0.829 7.68
4/22/20232023-Period1 47.2 85.1 0.0835 3.04 8.11 472 . 0.0267 2.97 7.71 BRL 27.2 0.0714 1 1.12 7.27 BRL 12.6 0.0146 0.299 5.44 BRL 12.2 0.017 0.289 6.42
11/21/2023 2023-Period 2 Currently awaiting results fr mPateAnalytical
Confidential-Company Proprietary

TSS Zn Al Al Limit Zn Limit
720 0.29 25 0.75 0.126 zn 0.0003 0.0094 TSS Upper Limit
101 0.056 2.6 0.75 0.126 al 0.0296 0.6304 AI 4
659 0.245 14.6 0.75 0.126 Zn 389
46 0 2.3 0.75 0.126
6 0 0.03 0.75 0.126 30 0.35
832 0.18 24 0.75 0.126
25 0.3
794 0.205 26.7 0.75 0.126 � •
10 0 0.95 0.75 0.126 0.25
131 0.057 5 0.75 0.126 20
•
166 0.11 8.82 0.75 0.126 0.2
0 0 0.64 0.75 0.126 E 15 E
0.15
13 0.011 0.36 0.75 0.126 E iv
86.5 0.0481 3.63 0.75 0.126 a 10 = 0.1
2.7 0 0.78 0.75 0.126
14 0 0.41 0.75 0.126 5 0.05
14.9 0 0.829 0.75 0.126 •
0 - 0
0 100 200 300 400 500 600 700 800 900
TSS[mg/L]
• AI vs TSS -AI Limit • Zn vs TSS -Zn Limit
12 0.35
10 0.3
• 0.25
8
on
J
0.2
E 6 E
• 0.15 c
E IV
a 4 •
0.1
2 • • • 0.05
0 0
0 20 40 60 80 100 120 140 160 180 200
TSS[mg/L]
• AI vs TSS -AI Limit • Zn vs TSS -Zn Limit
Confidential-Company Proprietary

Date 5/23/2022
COD TSS Zn Al pH
Parameter Notes
[mg/L] [mg/L] [mg/L] [mg/L] [Units]
Limits < 120 < 100 < 0.126 < 0.75 6-9
Outfall 1 106 659 0.245 14.6 8.09 Large amounts of gravel dust.
Outfall 2 151 794 0.205 26.7 7.01 Large amounts of gravel dust, and potentially oil
runoff.
Outfall 3 64.7 166 0.11 8.82 7.59 Large amounts of gravel dust.
Outfall 4 44.3 86.5 0.0481 3.63 7.05 Gravel dust observed.
Outfall 5 73.8 14.9 BRL 0.829 7.68 Sample relatively clear.
** BRL indicates that item tested is "Below Reportable Limit"
.Confidential-Company Proprietary

NCW-Stormwater Anaylical Results
Date TSS COD Cadmium Lead Aluminum Zinc pH
Limit 100 mg/L 120 mg/L 0.001 mg/L 0.03 mg/L 0.75 mg/L 0.067 mg/L 6-9 S.U.
3/17/2014 12 BRL BRL 0.99 BRL 6.8
3/12/2015 BRL BRL BRL 0.12 BRL 6.8
12/2/2015 17 BRL BRL BRL 6 0.058 6.2
6/28/2016 16 110 BRL BRL 0.92 BRL 6.8
4/19/2017 BRL 68 BRL BRL BRL 6.8
5/16/2018 180 130 BRL 0.0064 9 0.08 6.8
.Confidential -Company Proprietary

5/23/2022
Aluminum 3270 ug/L 3.27
Iron 6110 ug/L 6.11
Copper 23.5 ug/L 0.0235
Magnesium 3380 ug/L 3.38
Nickel 6.4 ug/L 0.0064
Sodium 10200 ug/L 10.2
Strontium 163 ug/L 0.163
Titanium 269 ug/L 0.269
Zinc 90.4 ug/L 0.0904
TSS 72.1 mg/L
Confidential-Company Proprietary

12/1/23, 10:51 AM North Carolina Secretary of State Search Results
• File an Annual Report/Amend an Annual Report • Upload a PDF Filing • Order a Document Online -
Add Entity to My Email Notification List • View Filings • Print a Pre-Populated Annual Report form • Print
an Amended a Annual Report form
Business Corporation
Legal Name
Insteel Wire Products Company
Prev Legal Name
Rappahannock Wire Company
Information
Sosld: 0193208
Status: Current-Active O
Date Formed: 8/5/1986
Citizenship: Domestic
Fiscal Month: December
Annual Report Due Date: April 15th
Currentgnnual Report Status:
Registered Agent: Petelle, James F
Addresses
https://www.sosnc.gov/online services/search/Business_Registration_Results 1/2

12/1/23, 10:51 AM North Carolina Secretary of State Search Results
Mailing Principal Office Reg Office
1373 Boggs Dr. 1373 Boggs Dr. 1373 Boggs Drive
Mount Airy, NC 27030-2145 Mount Airy, NC 27030-2145 Mount Airy, NC 27030
Reg Mailing
1373 Boggs Drive
Mount Airy, NC 27030
Officers
Vice President Chief Financial Officer Treasurer Secretary
Scot R Jafroodi Scot R Jafroodi Scot R Jafroodi James F Petelle
1373 Boggs Dr. 1373 Boggs Dr. 1373 Boggs Dr. 1373 Boggs Dr
Mount Airy NC 27030 Mount Airy NC 27030 Mount Airy NC 27030 Mount Airy NC 27030
Vice President Vice President Chairman President
James F Petelle Richard T Wagner Howard O Woltz III Howard O Woltz III
1373 Boggs Dr 1373 Boggs Dr 1373 Boggs Dr. 1373 Boggs Dr.
Mount Airy NC 27030 Mount Airy NC 27030 Mount Airy NC 27030 Mount Airy NC 27030
Chief Executive Officer
Howard O Woltz III
1373 Boggs Dr.
Mount Airy NC 27030
Stock
Class: COMMON
Shares: 5000
Par Value 1
https://www.sosnc.gov/onIine_services/search/Business_Registration_ResuIts 2/2

Young, Brianna A
From: Young, Brianna A
Sent: Monday,June 12, 2023 2:44 PM
To: [e-mail]
Subject: Insteel Wire Products Company stormwater permit NCS00346
Good afternoon,
The Division of Energy, Mineral, and Land Resources (DEMLR) Stormwater Permitting Program
acknowledges receipt of your renewal application for coverage under NPDES Permit Number NCS000346.
Please continue to comply with all conditions and monitoring requirements in your current NPDES stormwater
permit. As long as you have submitted a complete renewal request package and maintain compliance with those
permit conditions, stormwater discharges from this facility are authorized by that permit until the Division
issues a renewal permit or notifies you of an alternative action. Please note that due to the current backlog and
staff shortages, review of this permit renewal is not scheduled until 2024,however this schedule is subject to
change. Please let me know if you have any questions in the interim.
Thank you,
Brianna Young, MS(she/her/hers)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
**DEQ is updating its email addresses to @deq.nc.gov in phases from May 1st to June 9th. Employee email addresses may look
different, but email performance will not be impacted.
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
1

�����'_;;-�tomlwater Program
EPA Identification Number NPDES Permit Number Fadlf Name Form Approved 03105/19
NCS000346 In-steel Wire Products OMB No.2040-0004
Form U.S.Environmental Protection Agency
1 \.EPA Application for NPDES Permit to Discharge Wastewater
NPDES GENERAL INFORMATION
SECTIONeNPDES
1.1 Applicants Not Required to Submit Form 1
Is the facility a new or existing publicly owned Is the facility a new or existing treatment works
1.1.1 treatment works? 1.1.2 treating domestic sewage?
If yes, STOP.Do NOT complete No If yes,STOP.Do NOT No
Form 1.Complete Form 2A. complete Form 1. Complete
Form 2S.
1.2 Applicants Required to Submit Form 1
1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
E operation or a concentrated aquatic animal commercial, mining,or silvicultural facility that is
a- production facility? currently discharging process wastewater?
A ❑ Yes 4 Complete Form 1 No Yes 4 Complete Form Fz] No
z and Form 28. 1 and Form 2C.
- 1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
mining,or silvicultural facility that has not yet commercial,mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
(] Yes 4 Complete Form 1 0 No ❑ Yes 4 Complete Form No
and Form 2D. 1 and Form 2E.
1.2.5 Is the facility a new or existing facility whose
'— discharge is composed entirely of stormwater
a associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
0 Yes 4 Complete Form 1 No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x)or
b 15 .
rN 2.NAME,MAILING ADDRESS,AND LOCATIONr
2.1 Facility Name
Insteel Wire Products
0 2.2 EPA Identification Number
U
O
J
b
2.3 Facility Contact
N
n Name(first and last) FTille Phone number
a Greg Brown f Manufacturing [phone]
Email address
- [e-mail]
2.4 Facility Mailing Address
E
Street or P.O. box
z
1510 Carter Street
City or town State ZIP code
Mount Airy NC 27030
EPA Form 3510-1(revised 3-19) Page 1

EPA ldentificat on Number NODES Permit Number Facility Name Form Approved 03105/19
NC5000346 insteel Wire Products OMB No.2040-0OQ4
UT
� 2.5 Facility Location
a . Street,route number,or other specific identifier
�0 1510 Carter Street
rn
o County name County code(if known)
U
Surry
E _j City or town State ZIP code
z Mount Airy NC 27030
SECTION // i
3.1 SIC Code(s) Description(optional)
3315
(n
U
U
U)
U
3.2 NAICS Code(s) Description(optional)
m 331222
U
4.1 Name of Operator
Insteel Wire Products
0 4.2 Is the name you listed in Item 4.1 also the owner?
E ❑ Yes ❑ No
`a
4-
4.3 Operator Status
❑ Public—federal ❑ Public—state ❑ Other public(specify)
o ❑✓ Private ❑ Other(specify)
4.4 Phone Number of Operator
[phone]
4.5 Operator Address
o Street or P.O. Box
CU
E 1570 Carter Street
•� City or town State ZIP code
o �o Mount Airy NC 27030
Q Email address of operator
O [e-mail]
SECTION1 1 4
a -a 5.1 Is the facility located on Indian Land?
J ❑ Yes ❑✓ No
EPA Form 3510-1(revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
NCS000346 Insteel Wire Products OMB No.2040-0004
SECTION -! I
b 6.1 Existing Environmental Permits(check all that apply and print or type the corresponding permit number for each)
❑ NPDES(discharges to surface ❑ RCRA(hazardous wastes) ❑ UIC(underground injection of
o water) fluids)
- NCS000346
C Q a, ElPSD(air emissions) ❑ Nonattainment program(CAA) ❑ NESHAPs(CAA)
X ❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section 404) ❑ Other(specify)
ua
SECTIONI
7.1 Have you attached a topographic map containing all required information to this application?(See instructions for
CL
specific requirements.)
❑ Yes ❑ No ❑ CAFO—Not Applicable(See requirements in Form 2B.)
SECTIONOF 1
8.1 Describe the nature of your business.
IWP produces steel wire mesh used in concrete reinforcing by drawing steel rod into desired wire diameters and
welding the wire together through a pressure resistance welding process.
w
m
c
CA
m
a
a
io
COOLINGSECTION 9. 1
9.1 Does your facility use cooling water?
v
❑✓ Yes ❑ No 4 SKIP to Item 10A.
9.2 Identify the source of cooling water,(Note that facilities that use a cooling water intake structure as described at
40 CFR 125,Subparts I and J may have additional application requirements at 40 CFR 122.21(r).Consult with your
NPDES permitting authority to determine what specific information needs to be submitted and when.)
C,
UCity water with sewer connection-if discharged goes to city sewer
G
SECTION
1 VARIANCE REQUESTSI I
10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)?(Check all that
apply,Consult with your NPDES permitting authority to determine what information needs to be submitted and
v when.)
❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
Section 301(n)) 302(b)(2))
❑ Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
ZE Section 301(c)and(g))
❑✓ Not applicable
EPA Form 3510-1(revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
NC5000346 Insteel Wire Products OMB No.2040-0004
SECTION 11.CHECKLIST AND 1
11.1 In Column 1 below,mark the sections of Form 1 that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note
that not all applicants are required to provide attachments.
Column 1 Column 2
❑✓ Section 1:Activities Requiring an NPDES Permit ❑ wl attachments
❑✓ Section 2:Name,Mailing Address,and Location ❑ wl attachments
0 Section 1 SIC Codes ❑ wl attachments
✓❑ Section 4:Operator Information ❑ wi attachments
❑✓ Section 5: Indian Land ❑ wi attachments
Section 6: Existing Environmental Permits ❑ wl attachments
wl fopographic
:° ❑ Section 7:Map ❑ ma ❑ wl additional attachments
❑✓ Section 8:Nature of Business ❑ wl attachments
© Section 9:Cooling Water Intake Structures ❑ wl attachments
�' ❑✓ Section 10:Variance Requests ❑ wl attachments
C
y 0 Section 11:Checklist and Certification Statement ❑ wl attachments
a 11.2 Certification Statement
U
1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualified personnel properly gather and evaluate the
information submitted.Based on my inquiry of the person or persons who manage the system,or those persons
directly responsible for gathering the information,the information submitted is,to the best of my knowledge and
belief,true,accurate,and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibility of tine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Greg Brown Director of Manufacturing
Signature Date signed
EPA Form 3510-1(revised 3-19) Page 4

SECTION C: LOCATION MAP
Permit No.NCS000346
�,, i .fret 7r� -��i1•g _ ! ! ✓ - 'asv s ti`..rr •+ rd.
ara 'I',
l-.
a park ` r
i
r < try a
- �: p L �- _ ��I� '', ,µme n.`..� y � • !�F!{,..
�, I YY `~ '� 4 �.,1 Y�YI•�+ry£ ✓' 5 - f '�.�iR �
per( •
14
PL
.\
'.n - �,� w * a� •�k {,{ _�w2S �y •,.:,.,� -s; .y � \ ¢ Via✓
. �+ 'r F I i�. ��• ` � k't�' � r.,,,..,._.--,` 4 ,tea a c ".:�
� -k{ � x,_ 5.�. ,h� 23� - : �' jf1ly, i ... �� r- .�` •7 tom' 7 i .U
Insteel Wire
Products t"w.a a-.,'t t- �,.a. ,� _a t
s r
i.,""` •1 wI `-� i . "+e ar."-,'� 3 f
... • I f as �'•� �{ Y '� . ,
t_ ' _ a
�ti• � •S' � � � *S ;�`�� @rl,i r 4. , <, S. •..
Ilk
at- .I'�yi:�• �' .
r-. �:"• ° "$ .r, °ice � _
Latitude:36°28`31"N NCS000346 Facility
Longitude: 80°36'30"W
County: Surry Insteel Wire Products Location
Stream Class: C
Receiving Stream,:Lovills Creek
Sub-basin:03-07-03(Yadkin Pee-Dee River Basin) I
[�OttR Not to Scale
Part I Page 2 of 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCS000346 Insteel Wire Products OMB No.2040-0004
Form U.S Environmental Protection Agency
2F \""'.EPA Application for NPDES Permit to Discharge Wastewater
NPDES STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
SECTIONOUTFALL LOCATIONi
1.1 Provide information on each of the facilit 's outfails in the table below
Outfall Receiving Water Name Latitude Longitude
Number
001 Lovill's Creek/Ararat River 8p 3d 26.3 N 31; 28' 31.0" W
c
0
.2 002 Lovill's Creek/Ararat River g� 4 51.3 NEl
36, 28' 36.5" W L]
0
003 Lovill's Creek/Ararat River 86 36� 32.5" N FZ] 36° 28 351' W
p 004 Lovill's Creek/Ararat River 8CP 3d 32.2" N 36� 28 36.�' W
005 Lovill's Creek/Ararat River 86 3d 43.5' N 36- 29 34.1' W
SECTION • I
2.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes 0 No 3 SKIP to Section 3.
2.2 Briefly identify each applicable pro}ect in the table below.
Brief Identification and Affected Outfalls Source(s)of Discharge Final Compliance Dates
Description of Project (list outfall numbers)
Required Projected
m
E
ar
a
0
a.
E
2.3 Have you attached sheets describing any additional water pollution control programs(or other environmental projects
that may affect your discharges)that you now have underway or planned?(Optional Item)
❑ Yes ❑ No
EPA Form 3510-2F(Revised 3-19) Page 1

EPA Identification Number NPnES Permit Number Facility Name Form Approved 03/05/19
NCS000346 Insteel Wire Products OMB No.204NO04
SECTIONE^ I
W 3.1 Have you attached a site drainage map containing all required information to this application?(See instructions for
a: ,� specific guidance.)
U)
® Yes ❑ No
POLLUTANTSECTION 4. • 1
4.1 Provide information on the facility's pollutant sources in the table below.
Outfall Impervious Surface Area Total Surface Area Drained
Number (within a mile radius of the facility) (within a mile radius of the facility)
specify units specify units
001 1.60 acres 2.18 acres
specify units specify units
002 0.00 acres 1.61 acres
specify units specify units
003 1.93 acres 4.88 acres
specify units specify units
004 0.00 acres 3.97 acres
specify units specify units
005 0.00 acres 0.75 acres
specify units specify units
4.2 Provide a narrative description of the facility's significant material in the space below.(See instructions for content
requirements.)
Coils of Rod and Finished Goods
Diesel Aboveground Storage Tank
� Kerosene Aboveground Storage Tank
cn Scrap Wire/End Trim Containers
Garbage Container
0
CL
4.3 Provide the location and a description of existing structural and non-structural control measures to reduce pollutants in
stormwater runoff. See instructions forspecificguidance.)
Stormwater Treatment
Codes
Outfall from
Number Control Measures and Treatment Exhibit
2F-1
list
001 Absorbent socks,Bales of hay 1-U,1-X
002 Absorbent socks,Bales of hay 1-U,1-X
003 Absorbent socks,Bales of hay 1-1j,1-X
004 Absorbent socks 1-X
005 Absorbent socks 1-X
EPA Form 3510-2F(Revised 3.19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCS000346 Insteel Wire Products OMB No,2040-0004
SECTION •N STORMWATER I
5.1 1 certify under penalty of law that the outfall(s) covered by this application have been tested or evaluated for the
presence of non-stormwater discharges. Moreover, I certify that the outfalis identified as having non-stormwater
discharges are described in either an accompanying NPDES Form 2C, 2D,or 2E application.
Name(print or type first and last name) Official title
Greg Brown Director of Manufacturing
Signatur Date signed
Cn
a+ 5.2 Provide the testing information requested in the table below.
Outfall Onsite Drainage Points
N Description of Testing Method Used Date(s)of Testing Directly Observed
C1 Number
During Test
`m
i�
001 Visual Inspection OS/11/2023 No flow
0
in
c 002 Visual Inspection 5/11/2023 No flow
0
z
003 Visual Inspection 5/11/2023 No flow
004 Visual Inspection 5/11/2023 No flow
005 Visual Inspection 5/11/2023 No flow
SECTIONOR I
6.1 Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
None
`a
fA
ca
W
J
C
R
U
w
C
a7
SECTION •' • I
See the instructions to determine the pollutants and parameters you are required to monitor and, in turn,the tables you must
`0 com lete-Not all applicants need to complete each table.
5 7.1 Is this a new source or new discharge?
o ❑ Yes 4 See instructions regarding submission of ❑ No 4 See instructions regarding submission of
v
estimated data, actual data.
Tables A,B,C,and D
R
7.2 Rave you completed Table A for each outfali?
❑r Yes ❑ No
EPA Form 3510-2F(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
NCS000346 7insteel Wire Products OMB No.2040-0004
7.3 Is the facility subject to an effluent limitation guideline(ELG)or effluent limitations in an NPDES permit for its process
wastewater?
❑ Yes ❑✓ No 4 SKIP to Item 75
7.4 Have you completed Table B by providing quantitative data for those pollutants that are(1)limited either directly or
indirectly in an ELG and/or(2)subject to effluent limitations in an NPDES permit for the facility's process wastewater?
❑ Yes ❑ No
7.5 Do you know or have reason to believe any pollutants in Exhibit 2F-2 are present in the discharge?
0 Yes ❑ No 4 SKIP to Item 7.7.
7.6 Have you listed all pollutants in Exhibit 2F-2 that you know or have reason to believe are present in the discharge and
provided quantitative data or an explanation for those pollutants in Table C?
❑✓ Yes ❑ No
7.7 Do you qualify for a small business exemption under the criteria specified in the Instructions?
❑ Yes 4SKIP to Item 7.18. © No
7.8 Do you know or have reason to believe any pollutants in Exhibit 2F-3 are present in the discharge?
❑✓ Yes ❑ No 4 SKIP to Item 7.10.
v 7.9 Have you listed all pollutants in Exhibit 2F-3 that you know or have reason to believe are present in the discharge in
Table C?
0 0 Yes ❑ No
0 7,10 Do you expect any of the pollutants in Exhibit 2F-3 to be discharged in concentrations of 10 ppb or greater?
❑✓ Yes ❑ No 4 SKIP to Item 7.12.
0
7,11 Have you provided quantitative data in Table C for those pollutants in Exhibit 2F-3 that you expect to be discharged in
L, concentrations of 10 ppb or greater?
0 Yes ❑ No
7.12 Do you expect acroiein,acrylonitrile,2,4-dinitrophenol,or 2-methyl-4,6-dinitrophenol to be discharged in concentrations
of 100 ppb or greater?
❑ Yes 0 No 4 SKIP to Item 7.14.
7.13 Have you provided quantitative data in Table C for the pollutants identified in Item 7.12 that you expect to be
discharged in concentrations of 1 DO ppb or greater?
❑ Yes ❑ No
7.14 Have you provided quantitative data or an explanation in Table C for pollutants you expect to be present in the
discharge at concentrations less than 10 ppb(or less than 100 ppb for the pollutants identified in Item 7.12)?
© Yes ❑ No
7.15 Do you know or have reason to believe any pollutants in Exhibit 2F-4 are present in the discharge?
❑ Yes ❑✓ No 4 SKIP to Item 7.17.
7.16 Have you listed pollutants in Exhibit 2F-4 that you know or believe to be present in the discharge and provided an
explanation in Table C?
❑ Yes ❑ No
7.17 Have you provided information for the storm event(s)sampled in Table D?
© Yes ❑ No
EPA Form 3510-2F(Revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 031051€9
NC5000346 Insteel Wire Products OMEI No.2040-0004
Used or Manufactured Toxics
7.18 Is any pollutant listed on Exhibits 2F-2 through 2F-4 a substance or a component of a substance used or
manufactured as an intermediate or final product or byproduct?
0
❑✓ Yes El No SKIP to Section$.
0
ca E
7A9 List the pollutants below, including TCDD if app1cable.
0
1.Aluminum 4,Zinc 7.
m
ca 2.Iron 5. 8.
AD
o 8•Lead 6. 9.
SECTION • •GICAL TOXICITY TESTING DATA
8.1 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made on
2 any of your discharges or on a receiving water in relation to your discharge within the last three years?
a
w
❑ Yes ❑ No 4 SKIP to Section 9,
8.2 Identify the tests and their purposes below.
Test(s) Purpose of Test(s) Submitted to NPDES Date Submitted
x Permitting Authority?
i Ca 6
❑ Yes ❑ No
U
o ❑ Yes ❑ No
m0
❑ Yes ❑ No
SECTION • INFORMATION
9.1 Were any of the analyses reported in Section 7(on Tables A through C)performed by a contract laboratory or
consulting firm?
© Yes ❑ No 4 SKIP to Section 10.
9.2 Provide information for each contract laboratory or consulting firm below.
Laboratory Number t Laboratory Number 2 Laboratory Number 3
Name of laboratoryltirm Pace Analytical Services,LLC Pace Analytical Services,LLC Waypoint Analytical
a
.m
0
Laboratory address 205 East Meadow Road 2225 Riverside Drive 449 Springbrook Road
Suite A Asheville,NC 28804 Charlotte,NC 28217
Eden,NC 27288
Y
u
ro
o Phone number
v (336)G23-8921 [phone] [phone]
Pollutant(s)analyzed TSS Metals-Aluminum/Zinc TSS
COD COD
Metals-Aluminum/Zinc
EPA Farm 3510-2F(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC5000346 Insteel Wire Products OMB No.2040-0004
SECTION ! CHECKLIST + • CERTIFICATION STATEMENT(40
10.1 In Column 1 below,mark the sections of Form 2F that you have completed and are submitting with your application. For
each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to complete all sections or provide attachments.
Column 9 Column 2
❑✓ Section 1 ❑ wl attachments(e.g.,responses for additional outfalls)
© Section 2 ❑ wl attachments
Section 3 wl site drainage map
✓❑ Section 4 ❑ wl attachments
❑✓ Section 5 ✓❑ wl attachments
✓❑ Section 6 ❑ wl attachments
a ❑ Section 7 ✓❑ Table A ❑ wl small business exemption request
o ❑ Table B ❑ wl analytical results as an attachment
✓❑ Table C ✓❑ Table D
U ❑� Section 8 ❑ wlattachments
73
C
CU
❑ Section 9 El wlaftachments(e.g.,responses for additional contact laboratories or firms)
s
❑� Section 10 ❑
U 10,2
Certification Statement
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible
for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. 1 am aware that there are significant penalties for submitting false information, including the possibility of fine
and imprisonment for knowing violations.
Name(print or type first and last name) Official Title
Greg grown Director of Manufacturing
Signature Date signed
o-a3
EPA Form 3510-2F(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Fac6ty Name Outfall Number Form Approved 03/05/19
NCS000346 Insteel Wire Products 001 OMB No.2040-0004
CONVENTIONALTABLE A. •N CONVENTIONAL PARAMETERS(40
You must provide the results of at least one anal sis for every pollutant in this table.Complete one table for each oul#all.See instructions for additicnal details and re uirements.
Maximum Daily Discharge Average Daily Discharge Source of
(specify units) (specify units) Number of Storm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new source/new
During First Flow-Weighted ed During First Flow-Weighted Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instructions)
1. Oil and grease
2. Biochemical oxygen demand(BODS)
3. Chemical oxygen demand(COD) 200 mg/L 112 mg/L 4
4. Total suspended solids(TSS) 720 mg/L 445 mg/L 4
5. Total phosphorus
6, Total Kjeidahl nitrogen(TKN)
7, Total nitrogen(as N)
pH(minimum) 8.09 S.U. 8.35 S.U. 2
8.
pH(maximum) 8.61 S.U. 8.35 S.U. 2
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter;,subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Fonn 3510-2F(Revised 3-19) Page 7

EPA Identification Number NPDES Permit Number Fadity Name Outfall Number Form Approved 03105119
NCS000346 Insteel Wire Products Outfall 002 OMB No.2040-0004
TABLE A.CONVENTiONAL AND NON CONVENTIONAL PARAMETERS(40 CFR 122.26(c)(1)(i)(E)(3))'
You must provide the results of at least one anali sis for everV pollutant in this table.Complete one table for each outfall.See instructions for additional details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
We*unas) (SW*units) Number of Storm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new sourcelnew
During First Flo Composite
Flow-Weighted During First FlComposite Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instructions)
1. Oil and grease
2. Biochemical oxygen demand(BOD5)
3. Chemical oxygen demand(COD) 151 mg/L 79.5 mg/L 4
4. Total suspended solids(TSS) 832 mg/L 350.4 mg/L 5
5. Total phosphorus
6. Total Kjeldahl nitrogen(TKN)
7. Total nitrogen(as N)
pH(minimum) 6.97 S.U. 7.44 S.U. 3
8.
pH(maximum) 8.35 S.U. 7.44 S.U. 3
h Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Forth 3510-2F(Revised 3-19) Page 7

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCS000346 Insteel Wire Products Outfall 003 OMB No.2040-0004
TABLEA.CONVENTIONAL AND NON CONVENTIONAL '+R 4
You must provide the results of at least one anal is for every pollutant in this table.Complete one table for each outfall.See instructions for additional details and rreequirements.
Maximum Daily Discharge Average Daily Discharge Source of
(specify units) (spedfyunits) Number of Storm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new source/new
During First Flo Composite
Flow-Weighted During First Flo Composite
Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instructions)
1. Oil and grease
2. Biochemical oxygen demand(BOD5)
3. Chemical oxygen demand(COD) 151 mg/L 44.03 mg/L 4
4. Total suspended solids(TSS) 166 mg/L 85 mg/L 4
5. Total phosphorus
6. Total Neldahl nitrogen(TKN)
7. Total nitrogen(as N)
pH(minimum) 6.84 S.U. 7.22 S.U. 2
8.
pH(maximum) 7.59 S.U. 7.22 S.U. 2
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 7

EPA Identification Number NPDES Permit Number Facility Name Out(all Number Form Approved 03105119
NCS000346 Insteel Wire Products Outfall 004
OMB No.2040-0004
TABLEA.CONVENTIONAL AND •N CONVENTIONAL •+'• 41
You must provide the results of at least one analisis for every pollutant in this table.Complete one table for each outfall.See instructions for additional details and re uirements.
Maximum Daily Discharge Average Daily Discharge Source of
.(specify units) (spedfyunits) Number of Storm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new source/new
During First Flo Composite
Flow-Weighted During First Flo Composite
Events Sampled dischargers only,use
30 Minutes Composite 30 Minutes Composite codes in instructions)
1. Oil and grease
2. Biochemical oxygen demand(BOD5)
3. Chemical oxygen demand(COD) 50 mg/L 32.33 mg/L 4
4. Total suspended solids(TSS) 86.5 mg/L 26.05 mg/L 4
5. Total phosphorus
6. Total iCeldahl nitrogen(TKN)
7. Total nitrogen(as N)
pH(minimum) 7.05 S.U. 7.23 S.U. 2
pH(maximum) 7.4 S.U. 7.23 S.U. 2
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 7

EPA Identification Number NPDES Permit Number Facility Name Outfell Number Form Approved 03/05119
NCS000346 Insteel Wire Products Outfall 005
OMB No.2040-0004
TABLEA.CONVENTIONAL AND •N CONVENTIONAL •+ •+ +1
You must provide the results of at least one anali sis for every poIlutant in this table.Com lete one table for each outfal1.See instructions for additional details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(specify units) (specify units) Number of Storrn Information
Pollutant or Parameter Grab Sample Taken I Grab Sample Taken (new sourcelnew
During First Flow-Weighted During First Flow-Weighted Events Sampled dischargers only,use
Composite Composite
30 Minutes 30 Minutes codes in instructions)
1. Oil and grease
2. Biochemical oxygen demand(BOD5)
3. Chemical oxygen demand(COD) 73.8 mg/L 39.7 mg/L 4
4. Total suspended solids(TSS) 14.9 mg/L 9.8 mg/L 4
5. Total phosphorus
6. Total Neldahl nitrogen(TKN)
7. Total nitrogen(as N)
pH(minimum) 7.68 S.U. 7.94 S.U. 2
8.
pH(maximum) 8.2 S.U. 7.94 S.U. 2
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-217(Revised 3-19) Page 7

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05119
NCS000346 Insteel Wire Products 001 OMB No.204p-0004
TABLE C.TOXIC POLLUTANTS,CERTAIN HAZARDOUS SUBSTANCES,AND ASBESTOS(40 CFR 122.26(c)(1)(i)(E)(4)and 40 CFR 122.21(g)�7)(vil)(B)and(vii))'
List each pollutant shown in Exhibits 2F-2,2F-3, and 2F4 that you know or have reason to believe is present. Complete one table for each outfall. See the instructions for additional
details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
s eci unils s eci units Number of Storm Information
Pollutant and CAS Number(if available) Grab Sample Taken Grab Sample Taken (new sourcelnew
Flow-Weighted Flow-Weighted Events Sampled
During First During First dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instructions)
Aluminum 25 mg/L 14.75 mg/L 4
Zinc 0.29 mg/L 0.23 mg/L 4
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter 1,subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) page 11

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05l19
NCS000346 Insteel Wire Products Outfall 002
OMB No.2040-0004
TABLE • POLLUTANTS, • •'D• • 41 CFR 122.26(c)(1)(i)(E)(4)and 41 • and
List each pollutant shown in Exhibits 2F-2,2F-3,and 217-4 that you know or have reason to believe is present.Complete one table for each outfall.See the instructions for additional
details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(sped un'ds (sped units Number of Storm Information
Pollutant and CAS Number Cfavailable) Grab Sample Taken Flow-Weighted Grab Sample Taken Flow-Weighted Events Sampled (new source/new
During First During First dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instrudions)
Aluminum 26.7 mg/L 11.83 mg/L 5
Zinc 0.205 mg/L 0.09 mg/L 5
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 11

EPA Identfficabon Number NPDES Permit Number Facx'Gty Name Outfail Number Form Approved 03/05/19
NC5000346 Insteel Wire Products Outfall 003
OMB No.2040-0004
TABLE • POLLUTANTS, A•1• • ) and 41 s
List each pollutant shown in Exhibits 2F-2,2F-3,and 2F-4 that you know or have reason to believe is present.Complete one table for each outfall.See the instructions for additional
details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(sp units) (sp units Number of Storm Information
Pollutant and CAS Number(if available) Grab Sample Taken Grab Sample Taken (new sourcelnew
During First Flo Composite
Flow-Weighted During First Flo Composite
Events Sampled dischargers only,use
30 Minutes Composite 30 Minutes Composite codes in instructions)
Aluminum 8.82 mg/L 4.43 mg/L 4
Zinc 0.11 mg/L 0.06 mg/L 4
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-217(Revised 3-19) Page 11

EPA Identification Number NPDES Permit Number Facility Name OutfaU Number Form Approved 03105/19
NCS000346 Insteel Wire Products Outfall 004 OMB No.2040-00D4
TABLEPOLLUTANTS, " HAZARDOUS " AND ASBESTOS(40 CFR 122.26(c)(1)(i)(E)(4) 41
List each pollutant shown in Exhibits 217-2,2F-3,and 2F4 that you know or have reason to believe is present.Complete one table for each outfall.See the instructions for additional
details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(sp units s ' units Number of Storm Information
Pollutant and CAS Number(if available) Grab Sample Taken Grab Sample Taken (new sourcelnew
During First Flo Composite
ed During First Flow-Weighted Composite
Events Sampled dischargers only,use
30 Minutes Composite 30 Minutes Composite codes in instructions)
Aluminum 3.63 mg/L 1.22 mg/L 4
Zinc 0.0481 mg/L 0.03 mg/L 4
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 11

EPA lden9calion Number NPDES Permit Number Facility Name Oulfall Number Form Approved 03/05/19
NCS000346 Insteel Wire Products Outfall 005 OMB No.2040-0004
TABLE C.TOXIC POLLUTANTS,CERTAIN HAZARDOUS SUBSTANCES,AND ASBESTOS(40 CFR 122.26(c)(1)(i)(E)(4)and 40 CFR 122.21(9)(7)(vi)(B)and(Vii)),
List each pollutant shown in Exhibits 217-2,217-3,and 2F4 that you know or have reason to believe is present.Complete one table for each outfall.See the instructions for additional
details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
un'ds) (sp units Number of Storm Information
Po[iutant and CAS:Number(if available) Grab Sample Taken Grab Sample Taken (new source/new
During First Flo Composite
Flow-Weighted During First FlComposite Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in insbucilons)
Aluminum 2.23 mg/L 1.06 mg/L 4
Zinc 0.027 mg/L 0.02 mg/L 4
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-21'(Revised 3-19) Page 11

EPA Identification Number NPDES Permit Number Facility name Outfa{l Number Form Approved 03/05/19
NCS000346 Insteel Wire Products 001 ON18 No,2040-0004
TABLE D.STORM EVENT INFORMATION1
Provide data for the storm event(s)that resulted in the maximum daily discharges for the flow-weighted composite sample.
Number of Hours Between
Total Rainfall During Maximum Flaw#date
Duration of Storm Event Beginning of Storm Measured and Total Flow from Rain Event
Date of Storm Event tin hours) Storm Event End of Previous Measurable Rain During Rain Event (in gallons or specify units)
(in inches) Event (in gpm or specify units)
08/17/2021
0.09 28,248
Provide a description of the method of flow measurement or estimate.
The Rational Method with applied Runoff Corfficients is used to estimate the Total Flow. Runoff coefficients represent the fraction of total rainfall that will be transmitted as runoff from
the drainage area that flows into facility outfall. Runoff coefficients consider the ground surface or cover material and determine the amount of storm water flow which may infiltrate or
runoff as a discharge.
EPA Form 3510-2F(Revised 3-19) Page 13

FI LE:11 WPNCIRU N OFF.XLS
STORM EVENT RAINFALL/RUNOFF CALCULATION-RATIONAL METHOD
SITE: Insteel Wire Products Company
Mount Airy,NC
DATE: 811712021
START TIME: DURATION 00:00 (HR:MIN)
ENO TIME: RAINFALL: 0.09 INCH
Combined tottal flaw: 0,028 MG 28,248 gallons
The Rational Method with applied Runoff Corficients is used to estimate the Total Flow. Runoff
coefficients represent the fraction of total rainfall that will be transmitted as runoff from the drainage
area that Flows into facility outfall. Runoff coefficients consider the ground surface or cover material
and determine the amount of storm water flow which may infiltrate or runoff as a discharge.
OUTFALL NO.: 1 SF fAC= 43560
DRAINAGE AREA: IMPERVIOUS(ac)= 1.60, C= 0.90
PERVIOUS (ac)= 0.58, C= 0.85
TOTAL AREA(ac)= 2.10,C(w)= 0.89
TOTAL FLOW: C x I x A = 4,724 (gal.)= 0.005 (MG)
OUTFALL NO.: 002
DRAINAGE AREA: IMPERVIOUS(ac)= 0,00, C= 0.90
PERVIOUS (ac)= 1.61 , C= 0,85
TOTAL AREA(ac)= 1.61 ,C(w)= 0.85
TOTAL FLOW: C x I x A = 3,345 (gal.)= 0.003 (MG}
OUTFALL NO.: 3
DRAINAGE AREA: IMPERVIOUS(ac)= 1.93, G= 0.90
PERVIOUS (ac)= 2.95, C= 0.85
TOTAL AREA(ac)= 4.88,C(w)= 0.87
TOTAL FLOW; C x I x A = 10,374 (gal.)= 0,010 (MG)
OUTFALL NO.: 4
DRAINAGE AREA: IMPERVIOUS(ac)= 0.00, C= 0.90
PERVIOUS (ac)= 3.97, C= 0.85
TOTAL AREA(ac)= 3.97,C(w)= 0.85
TOTAL FLOW: C x I x A _ 8,247 (gal.)= 0.008 (MG)
OUTFALL NO.: 5
DRAINAGE AREA: IMPERVIOUS(ac)= 0.00, C= 0.90
PERVIOUS (ac)= 0.75, C= 0.85
TOTAL AREA(ac)= 0.75,C(w)= 0.85
TOTAL FLOW: C x I x A = 1,558 (gal,)= 0.002 (MG)
Note:The typical"C"cceffioients refer to"Design and Construction of Sanitary and Storm Sewers",
American Society of Civil Engineers,Manual of Practice,page 37,New York.
Surface Coefficient
Transportation impervious 0.95
Transportation Pervious(gravel; 0.85
Roof Impervious 0.90
Managed Pervlous(lawn/landscaped; 0.15

Outfal[Coordinates DRAIRAOEARPAOUTFALL, 001 002 003 ou 005
Watershed Boundaries
Rivers IMPERVIOUS AREA(ACRES) 1.60 0.00 193 0.00 C.00
y Tributary to Lovills Creek
Stormwater Flow TOTAL,DRAINAGE AREA(ACRES) 2.18 1.61 4.66 3.97 0.75
Outfall 001 X:-80.607302 IMPERVIOUS PERCENTAGE 73.4% 0.0% 40.2% 0.0% __ 0.0%
Y:36.475285
i
Outfal[002 X:-80-608092 0
Y:36.476806
n
Dukfali 003 X:-80-609162
m
Y;36.475743
x
Outfal1004 X:-80.609041
Y:36.476586
Outfall005 X:-90.612078
Y:36.476146 \
311i � lT � --------- ---- --
� r �l � P.
- -------------------- -----
------------------------------------
REf
1
y A�
I
d
FIGU 2-DRAINAGE&DUTFALLS PROJECT NO:100428224A <�)
Instee)Wire Products DATE:6/25/201B antedgraup
1510 Carter Street SCALE:NTS
35310 Toringdon Way
Mount Airy,NC 27030 DRAWN EY:JOS Charlotte,North Carolina 28277

anteaLgroup
Non — Stormwater Discharge Assessment and Certification
Insteel Wire Products
1510 Carter Street
Mount Airy, NIC
DATE OF TEST OUTFALL METHOD DESCRIBE RESULTS IDENTIFICATION NAME OR
OR DIRECTLY USED TO FROM TEST FOR OF PERSON(S)
EVALUATION OBSERVED TEST OR PRESENCE OF NON- POTENTIAL CONDUCTING
DURING EVALUATE STORM SIGNIFICANT TEST OR
THE TEST DISCHARGE WATER DISCHARGE SOURCES EVALUATION
5/11/2023 001 Visual NO FLOW N/A Bernice McGriff
(over 72 hours DISCHARGE
from the last 002 Visual NO FLOW N/A Bernice McGriff
rain event) DISCHARGE
003 Visual NO FLOW N/A Bernice McGriff
DISCHARGE
004 Visual NO FLOW N/A Bernice McGriff
DISCHARGE
005 Visual NO FLOW N/A Bernice McGriff
DISCHARGE`
CERTIFICATION
I, Eric Wu certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel properly gather
and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system
or those persons directly responsible for gathering the information, the information submitted is, to the best of
my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information,including the possibility of fine and imprisonment for knowing violations.
ZL-r— W - �a— 5/11/2023
Signature Date
Eric Wu Senior Consultant
Name Title
�I NOGEN*
ALLIANCE us.anteagroup.com
1

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
6 12.
building locations and impervious surfaces should be clearly noted.A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, lab results, date sampled, and storm event data.
3. A summary of the Visual Monitoring results. Do not submit individual monitoring
reports. The summary can consist of a table including such items as outfall number,
parameters surveyed, observations, and date monitoring conducted.
4. A summary of the Best Management Practices utilized at the pennitted facility.
Summary should consist of a short narrative description of each BMP's in place at
the facility. If the implementation of any BMP's is planned, please include
information on these BMP's.
5. A short narrative describing any significant changes in industrial activities at the
permitted facility. Significant changes could include the addition or deletion of
work processes, changes in material handling practices, changes in material storage
practices, and/or changes in the raw materials used by the facility.
6. Certification of the development and implementation of a Stormwater Pollution
Prevention Plan for the permitted facility (Sign and return attached form).
If the final year analytical monitoring of the existing permit term has not been completed
prior to filing the renewal submittal, then the last years monitoring results should be submitted
within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal
waiting on lab results)

Outfal{Coordinates
Outfall 001
X:-80.fi07302
OutFall 002 -
X:•80.Q8092
Y;3fi.976806 _
Outfall DD3
X:•SD.609441 ...
Y:36.476586
Outfall 004
Y:36.476809 +
Outfall DOS ' T
X:•80.612D78 �. �� '�'
Y:36.476146 t
M r
rester R10
mA
FIGURE 1-Aerial Map PBolECTNa:18042B224A U
Insteel Wire Products DATE:1/17/2019 anteagroup
1510 Carter Street SCALE:NTS 353DToringdon Way
Mount Airy,NC 27030 DRAWN BY:KVB Charlotte,North Carolina 29277

Outfall Coordinates
Outfall pp1
X:•Sp.6p7302
Y:36.4752$5 - �
Outfail pp2 Y
X:-$p.08092
Y:36.476806 -
Outfa3l pp3
X:-80.609041 __
Y:36.476586
Qutfa110p4
Ile
Y36,a768a9
Outfa11005 s, l; r
X:-80.612078
�p� r
� � w
1
as
FIGURE 1-Aerial Map PROJECT NO:18042R224A
Insteel Wire Products DATE:1/27/2019 anteagroup
1510 Carter Street SCALL NTS 3530Toringdon Way
Mount Airy,NC 27030 DRAWN BY:NV8 Charlotte,North Carolina 28277

Insteel Wire Products
Mount Airy, NC
2020-2022 Analytical Data Summary Tables
Date TSS COD Aluminum Zinc pH
Unit mg/L mg/L mg/L mg/L S.U.
Outfall1 5/21/2020 720 200 25 0,29
Outfall2 5/21/2020 46 10 2.3 0.027
Outfall3 5/21/2020 10 10 0.95 0.027 -
Outfall4 5/21/2020 0.7 10 0.64 0.027 -
Outfall5 5/21/2020 2.7 10 0.78 0.027 -
Outfall2 7/21/2020 6 0.03 0.01 6.97
Outfall1 2/12/2021 300 117 16.8 0.245 -
Outfall2 2/12/2021 74 50 6.14 0.034 -
Outfall3 2/12/2021 33 50 2.95 0.063 -
0utfa114 2/12/2021 4 50 0.236 0.02 -
Outfall5 2/12/2021 7.6 50 2.23 0.02 -
Outfalll 8/17/2021 101 25 2.6 0.056 8.61
Outfall2 8/17/2021 832 107 24 0.18 8.35
Outfall3 8/17/2021 131 51.4 5 0.057 6.84
Outfall4 8/17/2021 13 251 0.36 0.011 7.4
Outfall5 8/17/2021 14 25 0.41 0.01 8.2
Outfall1 5/25/2022 659 106 14.6 0.245 8.09
Outfall2 5/25/2022 794 151 26.7 0.205 7.01
Outfall3 5/25/2022 166 64.7 8.82 0.11 7.59
Outfall4 5/25/2022 86.5 44.3 3.63 0.0481 7.05
Outfall5 5/25/2022 14.9 73.8 0.829 0.02 7.68
Max Value - 832.00 200.001 26.70 0.29 8.61
Average Value I - 191.21 6L511 6.911 0.08 7.62
TSS COD
Max Value Avg Value Max Value Aug Value
Unit mg/L mg/L Unit mg/L mg/L
Outfall1 720 445.00 Outfall1 200 112
Outfall 2 832 350.40 Outfa1] 2 151 79.5
Outfall3 166 85.00 Outfall3 1 64.71 44.025
Outfall4 86.5 26.05 Outfa114 1 501 32.325
Outfall5 14.9 9.80 Outfall5 1 73.8 39.7

lnsteel Wire Products
Mount Airy, NC
2020-2022 Analytical Data Summary Tables
Date TSS COD Aluminum Zinc pH
Unit mg/L mg/L mg/L mg/L S.U.
Outfall1 5/21/2020 720 200 25 0.29 -
Outfall2 5/21/2020 46 10 2.3 0.027 -
Outfall3 5/21/2020 10 10 0.95 0.027 -
Outfall4 5/21/2020 0.7 10 0.64 0.027 -
Outfall5 5/21/2020 2.7 10 0.78 0.027 -
Outfall2 7/21/2020 6 - 0.03 0.01 6.97
Outfall1 2/12/2021 300 117 16.8 0.245 -
0utfa112 2/12/2021 74 501 6.14 0.034 -
Outfall3 2/12/2021 33 50 2.95 0.063 -
Outfall4 2/12/2021 4 50 0.236 0.02 -
Outfall5 2/12/2021 7.6 50 2.23 0.02 -
Outfalll 8/17/2021 101 25 2.6 0.056 8.61
Outfall2 8/17/2021 832 107 24 0.18 8.35
Outfall3 8/17/2021 131 51.4 5 0.057 6.94
Outfall4 8/17/2021 13 25 0.36 0.011 7.4
Outfall5 8/17/2021 14 25 0.41 0.01 8.2
Outfall1 5/25/2022 659 106 14.6 0.245 8.09
Outfall2 5/25/2022 794 151 26.7 0.205 7.01
Outfall3 5/25/2022 166 64.7 8.82 0.11 7.59
Outfall4 5/25/2022 86.5 44.3 3.63 0.0481 7.05
Outfall5 5/25/2022 14.9 73.8 0.829 0.02 7.68
Max Value - 832.00 200.00 26.70 0.29 8.61
Average Value - 191.21 61.51 6.91 0.08 7.62
TSS COD
Max Value Avg Value Max Value Avg Value
Unit mg/L mg/L Unit mg/L mg/L
Outfall1 720 445.00 Outfall1 200 112
Outfall2 832 350.40 Outfall2 151 79.5
Outfall3 166 85.00 Outfall3 64.7 44.025
Outfall4 96.5 26.05 Outfall4 1 Sol 32.325
Outfall5 14.9 9.80 [Outfall 5 1 73.81 39.7

Aluminum Zinc
Max Value Avg Value Max Value Avg Value
Unit mg/L mg/L Unit mg/L mg/L
Outfall1 25 14.75 Outfall1 0.29 0.21
Outfall2 26.7 11.83 Outfall2 0.205 0.09
Outfall3 8.821 4.43 Outfall3 0.111 0.06
Outfall4 3.631 1.22 Outfall4 0.0481 0.03
Outfall5 2.231 1.06 Outfall5 0.0271 0.02
pH
Max Value Avg Value Min Value
Unit S.U. S.U. S.U.
Outfall1 8.61 8.35 8.09
Outfall2 8.35 7.44 6.97
Outfall3 7.591 7.221 6.84
Outfall4 7.41 7.231 7.05
Outfall5 8.21 7.941 7.68

Aluminum Zinc
Max Value Avg Value Max Value Avg Value
Unit mg/L mg/L Unit mg/L mg/L
Outfall1 25 14.75 Outfall1 0.29 0.21
Outfall2 26.7 11.83 Outfall2 0.205 0.09
Outfall3 8.82 4.43 Outfall3 0.11 0.06
Outfall4 3.63 1.22 Outfall4 0.0481 0.03
Outfall5 2.23 1.06 Outfall5 0.027 0.02
pH
Max Value Avg Value Min Value
Unit S.U. S.U. S.U.
Outfall1 8.61 8.35 8.09
Outfall2 8.35 7.44 6.97
Outfall3 7.591 7.221 6.84
Outfall4 7.41 7.231 7.05
Outfall5 8.21 7.941 7.68

Insteel Wire Products
Mount Airy, NC
2021-2023 Visual Monitoring Summary Table
Date Color Odor Clarity* Floating Solids* Suspended Solids* Foam Oil Sheen Erosion/Deposition
Outfall 1 8/17/2021 light brown none 3 1 3 N N N
Outfall 2 8/17/2021 light brown none 5 1 2 N N N
Outfall 3 8/17/2021 light brown none 3 1 2 N N N
Outfall 4 8/17/2021 very light brown none 1 1 1 N N N
Outfall 5 8/17/2021 very light nrown none 1 1 1 N N N
Outfall 1 5/23/2022 light brown none 4 2 4 N N N
Outfall 2 5/23/2022 light brown none 3 1 3 N N N
Outfall 3 5/23/2022 light brown none 2 1 3 N N N
Outfall 4 5/23/2022 light brown none 2 1 4 N N N
Outfall 5 5/23/2022 light gray none 1 1 1 N N N
Outfall1 4/22/2023 brown none 3 1 2 N N N
Outfall2 4/22/2023 brown none 2 1 2 N N N
Outfall 3 4/22/2023 brown, gray none 2 1 2 N N N
Outfall4 4/22/2023 brown none 1 1 2 N N N
Outfall5 4/22/2023 brown none 1 1 2 N N N
*On a scale of 1 to 5,where 1 is dear/no solids
N = No/not present

Insteel Wire Products
Mount Airy, NC
2021-2023 Visual Monitoring Summary Table
Date Color Odor Clarity* Floating Solids* Suspended Solids* Foam Oil Sheen Erosion/Deposition
Outfall 1 8/17/2021 light brown none 3 1 3 N N N
Outfall 2 8/17/2021 light brown none 5 1 2 N N N
Outfall 3 8/17/2021 light brown none 3 1 2 N N N
Outfall 4 8/17/2021 very light brown none 1 1 1 N N N
Outfall 5 8/17/2021 very light nrown none 1 1 1 N N N
Outfall 1 5/23/2022 light brown none 4 2 4 N N N
Outfall 2 5/23/2022 light brown none 3 1 3 N N N
Outfall 3 5/23/2022 light brown none 2 1 3 N N N
Outfall 4 5/23/2022 light brown none 2 1 4 N N N
Outfall 5 5/23/2022 light gray none 1 1 1 N N N
Outfall1 4/22/2023 brown none 3 1 2 N N N
Outfall2 4/22/2023 brown none 2 1 2 N N N
Outfall 3 4/22/2023 brown,gray none 2 1 2 N N N
Outfall4 4/22/2023 brown none 1 1 2 N N N
Outfall5 4/22/2023 brown none 1 1 2 N N N
*On a scale of 1to 5,where 1 is clear/no solids
N = No/not present

Insteel Wire Products
Mount Airy, NC
Best Management Practices Summary
The ground surface surrounding the main facility building, including the parking lots,and
shipping/receiving areas is paved.The wire storage area is covered by gravel.Grass covers the other
unpaved ground surface to prevent erosion.Absorbent socks surround each outfall to prevent potential
contamination leaving off site. Bales of hay surround Outfalls 001,002, and 003 to prevent
sedimentation.

Insteel Wire Products
Mount Airy, NC
Best Management Practices Summary
The ground surface surrounding the main facility building, including the parking lots,and
shipping/receiving areas is paved.The wire storage area is covered by gravel.Grass covers the other
unpaved ground surface to prevent erosion.Absorbent socks surround each outfall to prevent potential
contamination leaving off site. Bales of hay surround Outfalls 001,002, and 003 to prevent
sedimentation.

Insteel Wire Products
Mount Airy, NC
Significant Changes
There have been no significant changes in industrial activities at this facility.

Insteel Wire Products
Mount Airy, NC
Significant Changes
There have been no significant changes in industrial activities at this facility.

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy, Mineral, and Land Resources—Stormwater Program
Facility Dame: Msteal Wife Products
Permit Number: NGS000346
Location Address: 1510 Carter Street
Mount Airy,NC 27030
County:
Surry County
� n
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all
attachments were developed and implemented under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information required by the SPPP.
Based on my inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information gathered is, to the best of my knowledge and belief, true,
accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP
has been fully implemented at this facility location in accordance with the terms and conditions of the
stormwater discharge permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
Sign (according to permit signatory requirements) and return this Certification. DO NOT
SEND STORMWATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature w/� Date ���-"U
Greg Brown Director of Manufacturing
Print or type name of person signing above Title
SPPP Certification 10/13