NCG050419_Email RE Outfall Updates with SWPPPs_20241017

Cook, Brittany
From: Phil Rahn <[e-mail]>
Sent: Thursday, October 17, 2024 11:53 AM
To: Cook, Brittany
Subject: [External] Fwd: Lat and Long for outfalls at Lydech Hamptonville and Yadkinville
Attachments: Lydech Hamptonville SWPPP Update 2024 - Compiled 5-14-2024.pdf; Lydech
Yadkkinville SWPPP Update 2024 - Compiled 5-14-2024.pdf
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Brittany-418 is Yadkinville with two outfalls and 419 is Hamptonville with 5 outfalls. Hope that is what
you need.
Sent from my iPhone
Begin forwarded message:
From: Mark Cramer<[e-mail]>
Date: October 17, 2024 at 9:24:32 AM EDT
To: Phil Rahn <[e-mail]>
Subject: RE: Lat and Long for outfalls at Lydech Hamptonville and Yadkinville
From Table 3-1 in the SWPPPs:
Hamptonville
Table 3-1 Stormwater Discharge Outfall Drainage Area Summary
Outfall Description Approximate Industrial Outfall Outfall
Drainage Activity in Latitude Longitude
Area(Acres) Drainage Area
Overland sheet
flow and front
parking lot
drainage toward Storage of oil
the northwest drums in a diked
001 —8 storage facility 36.1225240 -80.8198420
corner of the
and raw materials
property in a ditch
that leaves the receiving dock
property at Outfall
001
1

Outfall Description Approximate Industrial Outfall Outfall
Drainage Activity in Latitude Longitude
Area(Acres) Drainage Area
Shipping docks at
Overland sheet the rear of the
flow and rear fibers plant,
parking lots from a shipping/receiving
ditch and for the metals
002 Retention Pond#1 —12 plant,and the 36.1221770 -80.8177980
toward the north center parking
central drainage lot. Also,
ditch that leaves dumpster siting
the property at 002 area near the
stock room
Overland sheet Fire road south,
003 flow,south lots —5 paved storage 36.1191240 -80.8179880
and roadway into areas,and
Retention Pond#3 roadways
Roof drains from
Metals Building Metals Building
004
and eastern —6 Footprint and 36.1192240 -80.816851 0
parking lot that eastern parking
leaves the property lot
at 004
Overland sheet
flow from
southeastern Southeastern
005 portion of the —5 acres portion of 36.1194320 -80.8156670
parcel that drains property
to Retention Pond
#2 and then at 005
Yadkinville
Table 3-1 Stormwater Discharge Outfall Drainage Area Summary
Outfall Description Approximate Industrial Outfall Outfall
Drainage Area Activity in Latitude Longitude
(Acres) Drainage Area
Roof drains on Transformer,
the western wood pallets,
portion of plastic bins,
buildings and the polyethylene
001 western paved —8 totes,scrap 36.1375990 -80.6513100
area drains metal roll-off,
towards a wood scrap roll-
drainage ditch off, sanitary roll-
that leaves the offs, and forklift
2

Outfall Description Approximate Industrial Outfall Outfall
Drainage Area Activity in Latitude Longitude
(Acres) Drainage Area
property at loadingand
Outfall 001. unloading.
Roof drains on
the eastern
portion of
Raw materials
buildings and
shipping and
overland sheet
receiving dock,
002 flowfrom loading —5 forklift loading 36.1381940 -80.6498160
dock and parking
area flow into a and unloading,
drainage swale and tractor trailer
that leaves the storage.
property at
Outfall 002
Mark Cramer, P.E. -Senior Engineer
The El Group, Inc.
Environmental, Health and Safety Solutions.TM
Direct: 919.459.5229
Mobile: [phone]
www.eil.com
From: Phil Rahn <[e-mail]>
Sent:Wednesday, October 16, 2024 4:51 PM
To: Mark Cramer<[e-mail]>
Subject: Lat and Long for outfalls at Lydech Hamptonville and Yadkinville
Mark- Can you get me Lat and Long for the outfa[Is at the two
facilities. They are not set up in the eDMR system.
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3

STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
Lydech Thermal Accoustical
Yadkinville Facility
601 East Main Street
Yadkinville, North Carolina 27055
El Project ENM0240047.00
Version:
May 2024
The El Group, Inc. 888.372.5859
Environmental, Health and Safety Solutions.' www.eil.com

STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
Lydech Thermal Acoustical
Yadkinville Facility
601 East Main Street
Yadkinville, North Carolina 27055
Prepared by:
The El Group, Inc.
2101 Gateway Centre Boulevard, Suite 200
Morrisville, North Carolina 27560
Version:
May 2024
D�' The El Group, Inc. 888.372.5859
Environmental, Health and Safety Solutions.TI www.eil.com

Stormwater Pollution Prevention Plan (SWPPP)
Summary of Inspection, Monitoring, Recordkeeping, and Reporting Requirements
Lydech Thermal Acoustical
Yadkinville Facility
601 East Main Street
Yadkinville,North Carolina
Requirement Frequency Relevant
Appendix
Evaluate stormwater outfalls for the Annual—Retain records for minimum Appendix B
presence of non-stormwater discharges. of five(5)years.
Document significant spills/releases Upon occurrence of a significant Appendix C
above reporting thresholds. spill/release.
Visually inspect facility. Quarterly—Visually inspect facility, Appendix E
document,and retain records for
minimum of five(5)years.
SWPPP Employee Training Annual—Retain records for minimum Appendix F
of five(5)years.
SWPPP Review and Update Annual—Review SWPPP annually, Appendix G
update as needed, document, and retain
records of reviews for a minimum of
five(5)years.
Submit online certification of annual
SWPPP reviews and updates once
DEQ develops and implements this
capability.
Qualitative Stormwater Discharge Outfall Quarterly—Visual assessment of Appendix H
(SDO)Monitoring stormwater quality, document, and
(Outfalls 001, 002) retain records for a minimum of five
(5)years.
Analytical Benchmark Stormwater Quarterly—Grab sampling and Appendix I
Discharge Outfall (SDO)Monitoring analysis for comparison to benchmarks
(Outfalls 001, 002) starting with Quarter 1 of 2024.
Increase frequency to monthly if
exceed benchmarks up to Tier Two
status.
Submit DMR to DEQ within 30 days
following end of monitoring quarter.
E
' The El Group, Inc. 888.372.5859
Environmental, Health and Safety Solutions.T"' www.eil.com

EI Project Number ENM0240047.00 S W PP P
TABLE OF CONTENTS
PAGE
PURPOSE AND MANAGEMENT COMMITMENT..................................................................iii
1.0 RESPONSIBLE PARTIES........................................................................................................1
2.0 GENERAL LOCATION MAP..................................................................................................2
3.0 SITE MAP .................................................................................................................................3
4.0 NARRATIVE DESCRIPTION OF INDUSTRIAL PROCESSES ...........................................4
5.0 EVALUATION OF STORMWATER OUTFALLS.................................................................5
6.0 STORMWATER BMP SUMMARY ........................................................................................6
7.0 SECONDARY CONTAINMENT PLAN.................................................................................8
8.0 SPILL PREVENTION AND RESPONSE PROCEDURES.....................................................9
8.1 Spill Prevention........................................................................................................9
8.2 Spill Response........................................................................................................10
8.3 Inventory of Spill Response Materials and Equipment.........................................12
8.4 Significant Three Year Spill History.....................................................................12
9.0 SOLVENT MANAGEMENT PLAN......................................................................................13
10.0 PREVENTATIVE MAINTENANCE AND GOOD HOUSEKEEPING PROGRAM.........14
10.1 Preventative Maintenance......................................................................................14
10.2 Good Housekeeping...............................................................................................14
10.3 Facility Inspections................................................................................................15
10.4 Spent Lubricant and Fuel Disposal........................................................................15
11.0 EMPLOYEE TRAINING......................................................................................................16
12.0 ANNUAL SWPPP REVIEW AND UPDATE......................................................................17
13.0 MONITORING, RECORDKEEPING, AND REPORTING................................................18
13.1 Qualitative Monitoring...........................................................................................18
13.2 Analytical Monitoring............................................................................................19
13.3 Recordkeeping.......................................................................................................20
13.4 Reporting................................................................................................................20
LIST OF TABLES
Table 1-1 Responsible Parties
Table 3-1 Stormwater Discharge Outfall Drainage Area Summary
Table 6-1 BMP Summary
Table 7-1 Bulk Storage of Liquid Materials
Table 8-1 Response Assistance Phone Numbers
Table 8-2 Agency Reporting
Table 13-1 Benchmark Values for Stormwater Discharges
E
' 1_ Lydech Thermal Acoustical
"Dow Yadkinville,North Carolina

EI Project Number ENM0240047.00 S W PP P
LIST OF FIGURES
Figure 1 General Location Map
Figure 2 Site Map
LIST OF APPENDICES
Appendix A Certificate of Coverage No. NCG050418 and General Permit No. NCG050000
Appendix B Non-Stormwater Evaluation Report and Certification
Appendix C SPRP Responsible Persons, Spill Report Form, and List of Significant Spills
Appendix D Inventory of Solvents
Appendix E Quarterly Facility Inspection Checklist
Appendix F Record of Training
Appendix G SWPPP Annual Review and Update Forms
Appendix H Stormwater Discharge Outfall (SDO)—Qualitative Monitoring Reports
Appendix I Stormwater Discharge Monitoring Reports—Analytical Monitoring
E
' u- Lydech Thermal Acoustical
Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
PURPOSE AND MANAGEMENT COMMITMENT
The purpose of this Stormwater Pollution Prevention Plan (SWPPP) is to plan and document
measures to minimize impacts to stormwater discharged from the Lydech Thermal Acoustical
facility in Yadkinville, North Carolina from contact with industrial materials. This SWPPP has
been prepared to comply with the United States Environmental Protection Agency(EPA)National
Pollutant Discharge Elimination System (NPDES) program under the amended 1977 Federal
Water Pollution Control Act. The SWPPP has been developed using information from Stormwater
Management for Industrial Activities: Developing Pollution Prevention Plans and Best
Management Practice (USEPA, 1992). A SWPPP consists of steps and activities designed to
identify potential sources of stormwater pollution or contamination, and establishes Best
Management Practices (BMPs) that will prevent or reduce pollutants in stormwater runoff. This
SWPPP has been prepared in accordance with standard engineering practices.
The North Carolina Department of Environmental Quality (DEQ) has adopted final stormwater
permitting rules for industrial discharges in North Carolina. North Carolina is a delegated NPDES
state with general and individual permitting authority. EPA regulation 40 CFR 122 requires most
industrial facilities to apply for a NPDES permit for stormwater discharges. The Lydech facility
is covered by NPDES General Permit No. NCG050000, the current version of which became
effective June 1, 2023 and expires May 31, 2028. A copy of the Certificate of Coverage No.
NCG050418 and General Permit No. NCG050000 are included as Appendix A to this SWPPP.
This facility and its personnel are required to:
• Learn and implement stormwater pollution prevention procedures and requirements;
• Establish spill containment procedures and drainage control;
• Perform facility inspections, qualitative stormwater monitoring, and analytical stormwater
monitoring; and
• Maintain records to document compliance.
Lydech management is committed to preventing industrial pollution from exposure of stormwater
to hazardous materials and subsequent discharge to the environment through the implementation
and regular review and amendment to this SWPPP. This SWPPP has the full approval of
management, and Lydech has committed the necessary resources to implement the measures
described in this Plan.
By virtue of the signatory below,this SWPPP is accepted by Lydech and shall be implemented by
those designated responsible parties with the authority to commit the resources necessary to carry
out the requirements of the SWPPP.
E
' Lydech Thermal Acoustical
"Dow Yadkinville,North Carolina

EI Project Number ENMO240047.00 SWPPP
"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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature:
Name: Conrad Moss
Title: EHS Manager
Date:
E
' -iv- Lydech Thermal Acoustical
"DOW Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
1.0 RESPONSIBLE PARTIES
The responsible parties for overall coordination, development, implementation, and revision
(when necessary) of the SWPPP are listed in the table below.
Table 1-1 Responsible Parties
Responsible Parties
Name Title/Role Phone Numbers Responsibilities
EHS
Engineer/Primary SWPPP Pollution
Responsible Prevention Team(PPT)
Ariel Smith Party/ 336-660-9616 (Mobile) Leader for implementation,
reventioll Tea maintaining,review, and
Prevention Team
(PPT)Lead updating the SWPPP
Alternate responsible party
for SWPPP and supervisor
of EHS Engineer
EHS Ensures PPT has adequate
Conrad Moss Manager/Alternate 336-468-5284 (Mobile) resources to implement the
Responsible Party SWPPP
Provides Responsible
Official signatures where
required
EHS Ensures annual training is
Randy Allred Coordinator/Alternate 743-433-0267 (Mobile) performed
Responsible Party
EHS Ensures SWPPP
Nelson Mullis Coordinator/Alternate 336-469-4138 (Mobile) inspections, sampling, and
Responsible Party monitoring are performed
and records are kept
E
' 1_ Lydech Thermal Acoustical
"Dow Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
2.0 GENERAL LOCATION MAP
Lydech is located at 601 East Main Street, Yadkinville, North Carolina, in an area of light
industrial, commercial and private residences. Lydech occupies one parcel in the Yadkin County
tax records totaling approximately 13 acres. The property is located along East Main Street (Old
U.S. 421) in Yadkinville with a Yadkin County GIS physical property address of 468 Unifi
Business Park Dr. Property to the northwest, northeast and east beyond Unifi Business Park
consists of other industrial properties. Property to the west is undeveloped beyond which are
residential properties. Property to the south beyond East Main Street consists of various
commercial properties. Figure I illustrates the location of the Lydech Yadkinville site on a section
of United States Geological Survey (USGS) quadrangle map containing the elements stipulated
for a General Location Map in General Permit NCG050000.
The two facility buildings occupy approximately 280,000 square feet (Building A is
approximately160,000 square feet, and Building B is approximately 120,000 square feet). These
buildings were constructed in the mid-I980s and formerly occupied by Unifi. Lydall began leasing
space in the facility beginning in March 2010 for Finished Good distribution only (no
manufacturing). Between October 2010 and June 2011,Lydall commissioned one industrial oven,
three hydraulic presses, and one small metal fabrication machine.
Surface water drains from the site through two outfalls (Outfall 001 and Outfall 002), with some
sheet flow. Figure 2 illustrates the locations of the outfalls relative to buildings, industrial material
storage, and surface flow directions. The western portion of the property drains west via sheet
flow and a drainage ditch in the western portion of the property and then to Outfall 001. The
northern and eastern portion of the property drains to the north through sheet flow and then to a
drainage swale and Outfall 002 located north of the loading docks. Outfall 001 drains west into
an unnamed tributary of Town Branch located approximately 1,600 feet to the west, which then
flows north into Town Branch. Outfall 002 drains north into Town Branch, located approximately
2,000 feet to the north.
The general vicinity of the site drains to the north and west. The receiving water is Town Branch
within the Yadkin Pee-Dee River Basin. The North Carolina Department of Environmental
Quality (DEQ), Division of Water Resources (DWR) Primary Surface Classification for Town
Branch at the time of development of this SWPPP update(May 2024) is Class C (waters protected
for uses such as aquatic life propagation, survival, and maintenance of biological integrity
[including fishing and fish], wildlife, secondary contact recreation, and agriculture. Secondary
contact recreation means wading, boating, other uses not involving human body contact with
water, and activities involving human body contact with water where such activities take place on
an infrequent, unorganized, or incidental basis). This section of Town Branch is not listed in the
2022 Integrated Report 303(d) list of impaired waters. A Total Maximum Daily Load (TMDL)
has not been established specific to Town Branch.
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' -2- Lydech Thermal Acoustical
Iffow Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
3.0 SITE MAP
Figure 2 presents a Site Map illustrating the locations of exposed industrial areas and other details
relevant to the elements stipulated for a Site Map in the General Permit NCG050000, including:
• Site property boundary;
• Site topography;
• Buildings, roads,parking areas, and other built-upon areas;
• Stormwater discharge outfalls;
• Surface flow directions; and
• A graphic scale and north arrow.
Approximately 80% of the 13-acre site is impervious surface (covered by buildings, asphalt, and
concrete). Table 3-1 summarizes the latitudes, longitudes, and drainage areas for the stormwater
discharge outfalls.
Table 3-1 Stormwater Discharge Outfall Drainage Area Summary
Outfall Description Approximate Industrial Outfall Outfall
Drainage Area Activity in Latitude Longitude
Acres Draina a Area
Roof drains on the Transformer,
western portion of wood pallets,
buildings and the plastic bins,
western paved polyethylene totes,
001 area drains —8 scrap metal roll- 36.1375990 -80.6513100
towards a drainage off,wood scrap
ditch that leaves roll-off, sanitary
the property at roll-offs, and
Outfall 001. forklift loading
and unloading.
Roof drains on the
eastern portion of
buildings and Raw materials
overland sheet shipping and
flow from loading receiving dock,
002 dock and parking —5 forklift loading 36.1381940 -80.6498160
area flow into a and unloading,
drainage swale and tractor trailer
that leaves the storage.
property at Outfall
002
E
' -3- Lydech Thermal Acoustical
"DOW Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
4.0 NARRATIVE DESCRIPTION OF INDUSTRIAL PROCESSES
Lydech Thermal Acoustical designs and manufactures specialty engineered thermal and acoustical
insulating products for the automotive industry at the Yadkinville facility. Nonwoven fabric
insulating products are manufactured at Lydech's Plant 3 Yadkinville location. Lydech's thermal
products range from classic heat shields in powertrain and underbody applications for ICE'S
(internal combustion engines) to extending into EV (electric vehicle) battery thermal and EMI
management. The application areas for Lydech include but are not limited to direct exhaust mount
heat shields, powertrain heat shields, underbody heat shields, fuel and fluid-heat management,
under-hood heat management,interior NVH(noise,vibration&harshness),exterior NVH, interior
thermal management, and EV battery applications.
The Yadkinville facility includes a Fibers building or Plant 3. The building space at the
Yadkinville location contain office and manufacturing spaces, employee break room areas,
maintenance shops,warehouse and product storage areas. Manufacturing activities are conducted
inside the buildings and not exposed to precipitation or stormwater runoff for the most part.
Lydech facility operates 24 hours daily, with activities being the manufacture of thermal and
acoustical insulating automotive products that provide protection to sensitive components and
occupant safety.
The exterior of Plant 3 has a transformer, wood pallets, plastic bins, polyethylene totes, two
enclosed compactors, a scrap metal roll-off, and cardboard and sanitary roll-offs for general trash.
Potential pollutants that could be expected to be present in stormwater runoff from the Lydech
operations are primarily Total Suspended Solids (TSS) and oil and grease.
E
' -4- Lydech Thermal Acoustical
"Dow Yadkinville,North Carolina

EI Project Number ENM0240047.00 swPPP
5.0 EVALUATION OF STORMWATER OUTFALLS
Non-stormwater flows present under dry weather conditions may be an indicator of unknown,
unpermitted sources of discharge. Lydech has visually inspected the stormwater discharge at the
outfalls during dry weather to evaluate for the presence of non-stormwater discharges. Lydech must
re-evaluate the stormwater outfalls (Outfall 001 and Outfall 002)for the presence of non-stormwater
discharges annually. If non-stormwater discharges are present, Lydech must identify the source and
record whether the discharge is allowable under NCG050000 or a different permit. Lydech must
evaluate the environmental significance of the non-stormwater discharges and include a summary
written record and certification statement,which must be retained with the SWPPP,and shall be dated
and signed by a responsible corporate officer. Appendix B contains a Non-Stormwater Evaluation
Report and Certification form which may be used for this purpose annually.
The following are non-stormwater discharges that are allowable under NCG050000:
• Uncontaminated groundwater;
• Foundation drains;
• Air conditioner(HVAC)condensate without added chemicals;
• Springs;
• Uncontaminated potable water;
• Waterline and fire hydrant flushings;
• Water from footing drains;
• Irrigation waters;
• Flows from riparian habitats and wetlands;
• Discharges resulting from fire-fighting; and
• Emergency shower or eye wash as a result of use in the event of an emergency.
E
' -5- Lydech Thermal Acoustical
Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
6.0 STORMWATER BMP SUMMARY
Best Management Practices (BMPs) are measures or practices used to reduce the amount of
pollution entering surface waters. BMPs may take the form of a process, activity, or physical
structure. Wherever practical,Lydech shall prevent exposure of manufacturing operations, storage
areas, material handling operations, and maintenance activities to stormwater. In areas where
elimination of exposure to stormwater is not practical,Lydech implements procedures and general
good housekeeping practices to minimize potential contribution of pollutants to stormwater
discharges.
The following table summarizes the BMPs implemented at Lydech to meet the requirements of
General Permit NCG050000.
Table 6-1 BMP Summary
BMP Description Feasibility/Implementation
Good Maintain clean, dry floors(interiors) and Implemented as required for
housekeeping exterior grounds free of debris; regular inclusion in SWPPP.
pickup/disposal. (Section 10.2)
Preventative Periodic inspection and repair of equipment, Implemented as required for
Maintenance at minimum according to manufacturer inclusion in SWPPP.
recommendations. (Section 10.1)
Visual Quarterly inspection of facility systems and Facility inspections conducted
inspections equipment, outdoor storage, quarterly.
loading/unloading areas, storage sheds, (Section 10.3 and Appendix E)
structural BMPs, and stormwater drainage
system.
Spill prevention Measures implemented to prevent Implemented as required for
and response spills/leaks and response actions planned to inclusion in SWPPP.
contain and clean up in the event of a (Section 8.0)
spill/leak.
Employee Ensure awareness of operations with Implemented as required for
training potential impacts and knowledge of inclusion in SWPPP
responsibilities to prevent and contain spills (Section 11.0 and Appendix F))
and spill prevention and response measures.
Recordkeeping Monitor practices and identify Implemented as required for
and reporting improvements as necessary. inclusion in SWPPP.
(Section 13.3 and Appendices)
Security Limit access to properly trained personnel, Process and storage areas are within
minimizing exposure and potential for accessed controlled portions of site
accidental releases or vandalism. or within interior portions of
buildings.
E
' -6- Lydech Thermal Acoustical
Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
BMP Description Feasibility/Implementation
Secondary Provisions to contain leaks/spills if released Drums and totes are stored inside
containment from primary container building structures. 55-gallon drum
containers are stored on plastic
grates that would provide secondary
containment for leaks. One
approximate 500 gallon used oil
tank and one approximate 500
gallon new oil tank are in double-
walled tanks. Onsite drums and
ASTs are below the threshold for
bulk storage. Changes to this will
be documented in Section 7.0 and
updated annually(if changes occur).
Bulk storage of liquid materials
provided with secondary
containment if applicable(Section
7.0).
Structural BMP Construction of loading/unloading docks to Loading docks constructed to allow
—Dock minimize potential for stormwater contact trucks and trailers to butt against
Construction and spills/leaks escaping to the bay doorways so as not to expose
environment. materials to precipitation and
provide for easy access to contain
spills/leaks.
The BMP summary must be re-evaluated annually for effectiveness in minimizing impacts to
stormwater. The annual assessment of adequacy of existing BMPs shall consider factors such as
whether or not there has been a significant spill within the past three (3) years and the results of
the analytical stormwater monitoring (Section 13.2). These evaluations must be documented,
signed, and kept with the SWPPP for a minimum of five (5) years. Appendix G contains forms
for use in documenting the required annual SWPPP review and update, including consideration of
the adequacy of existing BMPs.
E
' -7- Lydech Thermal Acoustical
Iffow Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
7.0 SECONDARY CONTAINMENT PLAN
Secondary containment is required for: bulk storage of liquid materials including petroleum
products; storage in any amount of Section 313 of Title III of the Superfund Amendments and
Reauthorization Act (SARA) water priority chemicals; and storage in any amount of hazardous
substances, in order to prevent leaks and spills from contaminating stormwater runoff. A table or
summary of all such tanks and stored materials and their associated secondary containment areas
shall be maintained.
"Bulk Storage of Liquid Materials,"is defined in the General Permit Part J Definitions as: "Liquid
raw materials, in-process liquids and reactants, manufactured products, waste materials or by-
products contained in a single above ground container,tank, or vessel having a capacity of greater
than 660 gallons or contained in multiple above ground containers, tanks, or vessels located in
close proximity to each other having a total combined capacity of greater than 1,320 gallons."
Table 7-1 is a list of tanks and drums for storage of liquid materials summarizing the secondary
containment provided. It should be noted that the quantities of liquid materials at Plant 3 do not
exceed the volumes considered"Bulk Storage of Liquid Materials.
Table 7-1 Bulk Storage of Liquid Materials
Tank ID Capacity Material) Secondary Containment
(gallons)
Used Oil Tank 500 Used Oil
Double-Wall Tanks Inside Building
New Oil Tank 500 New
Various 55- On Secondary Containment Pallets and/or
gallon drums 280 Fuel/Oils/Waste/Cleaners Within Building Providing Sufficient
Containment
Exterior secondary containment dike systems are not used at the Lydech Yadkinville facility that
would require release of accumulated stormwater. Visual monitoring and recordkeeping for
controlled stormwater releases is not required at Lydech's Yadkinville facility.
E
' g_ Lydech Thermal Acoustical
Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
8.0 SPILL PREVENTION AND RESPONSE PROCEDURES
The EHS Engineer is the primary responsible party for implementing the Spill Prevention and
Response Procedures (SPRP) contained in this section. Additional personnel have been delegated
appropriate authority to commit the necessary resources to implement the Plan and can assume
these responsibilities in absence of the EHS Engineer, such that a responsible person will be onsite
at all times during facility operations that have the potential to contaminate stormwater runoff
through spills or exposure to materials associated with facility operations. These responsible
persons have reviewed this Plan and indicate acceptance of these responsibilities by signature
documented in Appendix C.
The General Permit requires that the permittee develop a spill prevention and response component
within the SWPPP document to include:
(a) An assessment of areas of the facility where there is the potential for spills;
(b) A list of trained facility personnel responsible for implementing the SPRP;
(c) A signed and dated acknowledgement in which staff members accept responsibilities for
the SPRP;
(d) An inventory of spill response materials and equipment and the locations for storing these
items;
(e) Written procedures for proper cleanup and disposal of spilled materials; an
(f) A list of significant spills or leaks of pollutants that have occurred during the previous three
(3) years and any corrective actions taken to mitigate spill impacts or the notation that no
spills have occurred. This list shall be updated on annual basis.
Areas of the facility with the greatest potential for spills are the ASTs and several 55-gallon drums
within Plant 3 manufacturing area. Spills would be contained within the double-wall tank
interstices, secondary containment pallets, and/or the building structure of Plant 3.
The list of trained personnel implementing these SPRP, along with their signatures acknowledging
these responsibilities, is included in Appendix C.
Spill prevention and response procedures, spill response materials and equipment, and significant
spills/leaks are addressed in the following subsections.
8.1 Spill Prevention
In addition to storage and material transfers for bulk liquids begin conducted within structures that
would contain a spill/leak, Lydech implements the following spill prevention procedures for bulk
deliveries and liquid material transfers/dispensing.
Bulk Delivery Procedures
Lydech employees are responsible for the filling of tanks and handling of drums and totes.
Contract vendors may deliver bulk liquid materials to the site; however, employees will observe
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' -9- Lydech Thermal Acoustical
Yadkinville,North Carolina

EI Project Number ENM0240047.00 SWPPP
and inspect the work of vendor deliveries to minimize accidental spills/leaks, ensure proper
transfer and storage, and ensure that spill response materials are readily available in the event of a
release. This includes:
• Verifying that all ports and valves have been properly closed after filling; and
• Inspect delivered totes and drums to assure they are placed in the correct locations
and are not damaged or leaking.
Dispensing Procedures
Employees follow standard procedures for dispensing liquids from either tanks, plastic totes, or
drums located both inside and outside of the facility buildings. Proper liquid dispensing
procedures follow:
• Before any liquid is dispensed, check for leaks or defects.
• Watch the vessel from which the liquid is being dispensed to react to spills.
• Once the transfer is completed,check to see that valve,pumps,and bungs are closed
tight. Inspect the transfer area for any spilled liquid.
• If any liquid has been spilled, act immediately using absorbent materials.
8.2 Spill Response
Uncontrolled discharge of material to groundwater, surface water,or soil is prohibited. Immediate
action must be taken to control, contain, and recover discharged material. Responsible and trained
Lydech personnel are present onsite at all times during facility operations that have the potential
to release oil into the environment.
In general, the following steps are taken as needed in the event of a release:
• Contact a member of the SPRP team(Appendix C);
• Assess the situation;
• Eliminate potential spark sources;
• Control access to the area;
• Put on necessary personal protective equipment;
• If possible and safe to do so, identify and shut down source of the discharge to stop the
flow;
• Contain the discharge with absorbents (Section 8.3);
• Contact regulatory authorities and the response organization; and
• Collect and dispose of recovered products according to regulation.
In the event of a spill/leak, the SPRP team member onsite shall be notified and will assume
management of the required spill response and outside agency notifications and reporting, if
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EI Project Number ENM0240047.00 SWPPP
required. The names and emergency telephone numbers for the delegated SPRP personnel are
presented in Appendix C.
The EHS Coordinator shall keep a record of significant spills and response actions to be kept with
this SWPPP for a minimum of five(5)years. The Spill Report Form(also contained in Appendix
C) can be used for this purpose, as well as to compile information that may need to be reported to
outside agencies. The EHS Manager will decide when outside assistance may be needed and
manage any outside agency reporting that may be required.
Emergency telephone numbers for outside assistance, if and as needed, are summarized in the
following Table.
Table 8-1 Response Assistance Phone Numbers
Outside Assistance Organization Emergency Phone Number
Fire Department 911 (Emergency Only)
Yadkinville Volunteer Fire Department 336-679-8691 (Non-Emergency)
Ambulance 911 (Emergency Only)
Police 911 (Emergency Only)
Yadkinville Police Department 336-679-2863 (Non-Emergency)
Shamrock Environmental—Emergency Response Contractor 800-881-1098
HAZ-MAT Environmental—Emergency Response Contractor 704-332-5600
The reporting requirements for petroleum products are in North Carolina's Oil Pollution Act,
§143-215.85(a) and (b). North Carolina's Oil Pollution Act requires that if petroleum is
discharged,released or spilled in a quantity that is: 1) greater than 25 gallons, or 2) causes a sheen
on nearby surface water, or 3) is within 100 feet of a surface water body,the owner of the oil must
take immediate measures to contain, collect, and remove the discharge and notify the DEQ within
24 hours.
If the release is less than 25 gallons, does not cause sheen on nearby surface water, and is more
than 100 feet from surface water bodies, then the owner must immediately take measures to
contain, collect, and remove the discharge and restore the affected area. The release is not
reportable,unless it cannot be cleaned up within 24 hours.
The following table provides contact phone numbers and the circumstances under which each
agency should be verbally notified.
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EI Project Number ENM0240047.00 SWPPP
Table 8-2 Agency Reporting
Agency Phone Number When to Notify
>25 gallons or causes sheen on nearby
North Carolina Department of 336-776-9800 surface water or is less than 100 feet
Environmental Quality(DEQ) from surface water body
Winston-Salem Regional Office 800-858-0368
After Hours and Weekends
National Response Center 800-424-8802 If spill reaches navigable waterway
8.3 Inventory of Spill Response Materials and Equipment
Spill response materials,including absorbent materials, sorbent booms, sorbent sheets,gloves,and
empty drums are located in strategic locations throughout Plant 3 in the vicinity of the interior
waste storage and oils area and in locations close to oil (AST) containments.
8.4 Significant Three Year Spill History
General Stormwater Permit NCG050000 requires that the SWPPP include a list of significant spills
or leaks of pollutants during the previous three (3) years and any corrective actions taken to
mitigate spill impacts. The definition of"Significant Spills" in the permit includes releases of oil
or hazardous substances in excess of reportable quantities under Section 311 of the Clean Water
Act(CWA,40 CFR 110.3 and 40 CFR 117.3)or Section 102 of the Comprehensive Environmental
Response, Compensation, and Liability Act (CERCLA, 40 CFR 302.4).
Significant spills have not occurred at this facility within the past three (3) years. If significant
spills occur at the facility,they will documented in the list in Appendix C,and documentation shall
be maintained onsite for at least five (5)years.
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EI Project Number ENM0240047.00 SWPPP
9.0 SOLVENT MANAGEMENT PLAN
Lydech does not use or store bulk liquid organic solvents at the Yadkinville facility. Appendix D
contains the written certification statement required by NCG050000 to this effect. Small amounts
of organic compounds may be present in aerosol cans of lubricants, paints, etc. Small quantities
of aerosol spray cans (e.g., WD-40) are used. Spent aerosol cans are disposed of as Universal
Waste — Aerosol cans in accordance with 40 CFR 273 requirements through an outside
transportation and disposal contractor. Aerosol cans are not used or stored outside and are not
exposed to precipitation or stormwater runoff.
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EI Project Number ENM0240047.00 SWPPP
10.0 PREVENTATIVE MAINTENANCE AND GOOD HOUSEKEEPING PROGRAM
Lydech conducts preventative maintenance and regular testing and inspection of equipment as part
of normal operations on a routine basis. Plant personnel and maintenance staff are informed of
the need to identify potential maintenance issues that could create impacts to stormwater runoff.
General good housekeeping practices are also employed to maintain a clean and orderly work
environment as an effective initial measure toward preventing accidental spills/leaks that could
have an adverse impact on water quality. Clean and orderly work areas reduce the possibility of
accidental spills caused by mishandling materials and equipment, and reduce safety hazards to
personnel.
10.1 Preventative Maintenance
The Lydech preventative maintenance program is managed and implemented by qualified
maintenance personnel who routinely inspect operating equipment to ensure productive plant
operations, as well as uncover and correct potential failures that could contribute to spills/leaks,
such as cracks, slow leaks, corrosion, settling. The frequency of inspection and maintenance is
determined by the history of individual equipment. For purposes of this SWPPP, emphasis is
placed on material handling and loading equipment, and where equipment containing or involved
in the material transfer of significant materials is used outside, in areas exposed to stormwater. The
preventative maintenance program includes the following:
• Identification of equipment and systems to be inspected;
• Schedule for periodic inspections or testing of identified equipment;
• Appropriate and timely adjustment, repair, or replacement of equipment or parts when
needed; and
• Maintaining records for the maintenance performed and inspections of identified equipment.
At a minimum, schedules for routine maintenance follow the manufacturer recommendations.
In addition Lydech conducts quarterly facility inspections to ensure effective implementation of the
stormwater BMPs as described in the following Section 10.3.
10.2 Good Housekeeping
Lydech is committed to maintaining a clean, and therefore safe,work environment for employees.
Housekeeping issues are addressed in regular safety meetings. Managers and employees are
responsible for maintaining a clean and orderly workplace in order to improve safety, reduce
chance of spills/leaks, and reduce the potential for impacts to the environment. Specific practices
incorporated include the following:
• Maintain clean, dry floors and ground surfaces;
• Provide for regular pickup and disposal of garbage and waste material;
• Store containers, drums, and totes away from direct traffic to prevent accidental spills;
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EI Project Number ENM0240047.00 SWPPP
• Stack containers according to manufacturers' instructions;
• Store containers of liquids on spill containment pallets and/or inside buildings to contain
leaks where possible;
• Provide adequate space to facilitate material transfer and easy access for inspections;
• Store empty drums in covered areas to prevent exposure to precipitation;
• Clearly mark materials requiring special handling;
• Label containers to show name and type of substance stored, expiration date if applicable,
health hazards, and suggestions for special handling if applicable; and
• Ensure that employees and contractors understand good housekeeping and spill cleanup
procedures.
It is the responsibility of all employees to observe good housekeeping practices and maintain work
areas inside and outside the buildings in a clean and orderly manner. Observed areas of poor
housekeeping will be immediately corrected or reported to the appropriate management personnel
for correction. Observed spills, trash, or debris will be properly cleaned up and disposed of in a
manner appropriate to the waste type.
10.3 Facility Inspections
The NPDES General Permit No. NCG050000 requires that inspections of the facility be performed at
minimum on a quarterly schedule (January — March, April — June, July — September, October —
December). The purpose of these inspections is to ensure that stormwater BMPs are functioning
properly and being adequately maintained to minimize stormwater impacts from industrial activities.
At minimum, the facility inspections should cover observation of general maintenance and
housekeeping conditions for exposed material storage and handling areas, disposal areas, process
areas, loading and unloading areas, and haul roads.
Lydech performs facility inspections quarterly to meet the NCG050000 inspection requirement.
Appendix E contains a Quarterly BMP Inspection Checklist to be used to facilitate and document the
facility inspections. Records documenting these inspections must be kept onsite with the SWPPP for
at least five(5)years.
10.4 Spent Lubricant and Fuel Disposal
Lydech does not conduct fueling operations at the Yadkinville site and does not generate fuel waste.
Used is collected in a 500 gallon used oil AST which is collected by a waste contractor. Used oil is
shipped to an offsite oil reclamation facility through an outside transportation,waste broker,and disposal
contractor for recycling. Used oil is not stored outside in areas exposed to precipitation or stormwater
runoff.
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EI Project Number ENM0240047.00 SWPPP
11.0 EMPLOYEE TRAINING
The NPDES General Permit NCG050000 requires that employee training be developed and provided on
an annual basis for facility personnel responsible for operations that have the potential to contaminate
stormwater runoff. The training shall be documented by the date, signature, and printed or typed name
of each employee trained. The annual employee training shall address the following topics as applicable
to the facility:
• General stormwater awareness;
• Spill response training;
• Used oil management(not stored outside);
• Spent solvent management (not stored outside); and
• Used battery management(not stored outside).
The EHS Coordinator is responsible for ensuring required personnel receive this training annually,
and that their training is documented by signature of each employee trained. The annual training
shall be documented by the signature of each employee that participates. Appendix F contains a
Record of Training form that can be used in documenting the employees receiving the annual
SWPPP training. Records of training (including the signatures of the employees receiving the
training)must be kept onsite with the SWPPP for purposes of compliance with the NPDES General
Permit No. NCG050000 for at least five (5)years.
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EI Project Number ENM0240047.00 SWPPP
12.0 ANNUAL SWPPP REVIEW AND UPDATE
All aspects of the SWPPP shall be reviewed and updated on an annual basis. Lydech shall amend the
SWPPP whenever there is a change in design, construction, operation, site drainage, maintenance, or
configuration of the physical features which may have a significant effect on the potential for the
discharge of pollutants to surface waters. Appendix G contains a Plan Review,Update,and Amendment
Recertification Form for use in conducting and documenting the required annual SWPPP reviews.
In addition, the SWPPP update shall include a review and comparison of sample analytical data to
benchmark values over the past year,including a discussion about Tiered Response status. Lydech shall
use the DEQ Annual Summary Data Monitoring Report(DMR)/SWPPP Annual Update Data Review
Form(Appendix G)or equivalent method of documentation and benchmark comparison.
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EI Project Number ENM0240047.00 SWPPP
13.0 MONITORING, RECORDKEEPING,AND REPORTING
General Permit No. NCG050000 requires both qualitative (visual assessment) and analytical
monitoring to be conducted for stormwater discharge outfalls(Outfalls 001 and 002). The required
frequency is quarterly (January — March, April — June, July — September, October — December).
Stormwater samples are to be collected as grab samples during a measurable event within the first 30
minutes of discharge. A measurable event is a storm event that results in an actual discharge from
the outfall. The previous measurable event must have been at least 72 hours prior. Additionally, a
minimum of 30 days must separate the monitoring dates,unless monitoring frequency is increased
to monthly (e.g., as a result of benchmark exceedances). Monitoring should occur during the
facility's normal operating hours, not during severe adverse weather conditions, and while the flow
is characteristic of the volume and nature of the permitted discharge. If during the entire monitoring
period,there is no discharge from an outfall,then Lydech shall record"No Discharge"on the relevant
Discharge Monitoring Report(DMR) forms.
13.1 Qualitative Monitoring
Lydech will visually inspect, observe, and assess stormwater at Outfalls 001 and Outfall 002 on a
quarterly basis. The qualitative assessment shall include observations of:
• Color,
• Odor,
• Clarity,
• Floating Solids,
• Suspended Solids,
• Foam,
• Oil Sheen,
• Deposition at or immediately below the outfall,
• Erosion at or immediately below the outfall, and
• Other obvious indicators of stormwater pollution.
The qualitative observations from each monitoring event shall be recorded using the Stormwater
Discharge Outfall (SDO) Qualitative Monitoring Report included in Appendix H. Qualitative
monitoring results are not required to be submitted to the DEQ; however, a record of the
monitoring needs to be kept onsite with the SWPPP for at least five (5) years.
If the permittee's qualitative monitoring indicates that the SWPPP and/or existing stormwater BMPs
are ineffective, or that significant stormwater contamination is present, then the permittee shall
investigate potential causes, evaluate the feasibility of corrective actions, and implement those
feasible corrective actions within sixty (60) days. A written record of the permittee's investigation,
evaluation, and response actions shall be kept in the SWPPP for at least five(5)years.
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EI Project Number ENM0240047.00 SWPPP
13.2 Analytical Monitoring
Analytical monitoring is a new requirement with the latest version of NCG050000 effected June
1, 2023. The previous version of NCG050000 did not require analytical monitoring except for
vehicle and equipment maintenance activities which used more than 55 gallons of new motor oil
and/or hydraulic oil per month when averaged over the calendar year. The Lydech facility is an
existing facility which was previously permitted under General Permit NCG050000 which had a
six (6) month grace period before analytical monitoring must begin. Lydech is required to start
the following analytical monitoring for the stormwater discharge at Outfalls 001 and Outfall 002
in Quarter 1 of 2024.
Grab samples shall be collected, analyzed, and reported for Total Suspended Solids (TSS), pH,
and Chemical Oxygen Demand(COD). In addition,grab samples shall be analyzed for Non-Polar
Oil & Grease in vehicle or equipment maintenance areas in which more than 55 gallons of new
motor oil and/or hydraulic oil per month is used when averaged over the calendar year. Lydech
shall record the laboratory analytical results, as well as the average monthly use of new motor oil
and hydraulic oil and the total rainfall amount for each sampling in inches on the DEQ Stormwater
Discharge Monitoring Report(DMR)Form for NCG050000 included in Appendix I. Total rainfall
shall be determined from an on-site rain gauge or a regional rain gauge located within one(1)mile
of the facility.
The analytical results for stormwater samples collected will be compared to the benchmark values
summarized in the following table(as applicable to the Lydech facility). These benchmark values
are not permit limits, but are used as a guideline for determining need to increase monitoring
frequency, implement management actions, and/or improve stormwater BMPs.
Table 13-1 Benchmark Values for Stormwater Discharges
Discharge Characteristics Benchmark Values Units
Total Suspended Solids(TSS) 100 mg/L
H 6-9 Standard Units
Chemical Oxygen Demand(COD) 120 mg/L
For vehicle or equipment maintenance areas in which more than 55 gallons of motor oil
and/or hydraulic oil is used per month:
Non-Polar Oil& Grease/TPH by EPA mg/L
Method 1664 (SGT-HEM) 15
Grab samples shall be analyzed for pH within 15 minutes of collection. This requires use of
an onsite pH meter or pH paper.
Copies of the Stormwater Discharge Monitoring Report (DMR) Form for NCG050000 are to be
kept onsite with the SWPPP for at least five(5)years. Additionally,a copy of the DMR(completed
using the form in Appendix I) is required to be submitted to the North Carolina Department of
Environmental Quality(DEQ),Division of Energy,Mineral and Land Resources(DEMLR)within
30 days after the end of the monitoring period.
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EI Project Number ENM0240047.00 SWPPP
Analytical results for each parameter shall be compared to the benchmark values. An exceedance
of a benchmark value is not a permit violation, as these benchmarks are not discharge limits.
However, failure to respond to an exceedance as outlined in the NCG050000 General Permit is a
violation. An exceedance of any benchmark value shall require a tiered response for that outfall,
as outlined in NCG050000. A single exceedance of a benchmark value shall require a Tier One
response for that outfall. Two consecutive benchmark value exceedances shall require a Tier Two
response for that outfall. Four benchmark exceedances for a parameter within the permit term
shall require a Tier Three response for that outfall. See General Permit Sections E-6, E-7, and
E-8 (Appendix A) for details of specific actions, DEMLR notifications, written reports, and
Action Plans for Tier One, Tier Two, and Tier Three benchmark exceedance response
requirements.
13.3 Recordkeeping
Records relating to compliance with the conditions of the NPDES General Permit NCG050000,
as identified in this SWPPP, are required to be maintained onsite for at least five(5)years. These
records include the following:
• SWPPP reviews and amendments (Section 12.0 and Appendix G);
• Updates to significant three year spill history (Section 8.4 and Appendix C);
• Annual recertification of evaluations of non-stormwater discharges (Section 5.0 and
Appendix B);
• Annual recertifications of effectiveness of BMPs (Section 6.0, annual recertification form in
Appendix G);
• An annually updated and quantified inventory of solvents present onsite during the
previous three years — confirm no bulk solvent use or modify as appropriate (Section 9.0
and Appendix D);
• Maintenance records (Section 10.1);
• Facility inspections(Section 10.3 and Appendix E);
• Employee training records(Section 11.0 and Appendix F);
• Stormwater Discharge Outfall — Qualitative Monitoring Reports (Section 13.1 and
Appendix H);and
• Stormwater Discharge Monitoring Reports(DMRs)—Analytical Monitoring(Section 13.2
and Appendix I);
• Annual Summary Data Monitoring Report (DMR) with comparison to benchmarks and a
discussion of Tiered Response status (Appendix G or other equivalent record).
13.4 Reporting
A summary of the reporting to the DEMLR required by the NPDES General Permit NCG050000,
as identified in this SWPPP, is as follows:
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EI Project Number ENM0240047.00 swPPP
• Results of analytical benchmark monitoring must be submitted to the DEMLR within 30
days after the monitoring period ends using the Appendix I form, scanning, and uploading
prior to full implementation of the eDMR system, and then using eDMR once fully
implemented; and
• The permittee must submit an online certification of annual SWPPP reviews and updates
once DEMLR develops and implements this capability.
When results are below the detection limit, they shall be reported in the format, "<XX mg/L,"
where XX is the numerical value of the detection limit. If no discharge occurs during the sampling
period, Lydech must record that in the facility's monitoring records within 30 days of the end of
the sampling period. "No Discharge" shall be reported on the Annual Summary Discharge
Monitoring Report(Appendix G DMR).
The deadline for submittal of the DMRs to the DEMLR is 30 days after the monitoring period
ends. The submittal process before the Electronic Discharge Monitoring Reporting (eDMR)
system begins to accept the eDMR reporting is the following:
• Sample results shall be recorded on Discharge Monitoring Report (DMR) forms provided
by the DEQ (Appendix I).
• DMRs shall be signed and certified by the Delegated Authorized Individual.
• Original, signed DMR forms shall be scanned and uploaded to the electronic DMR
submittal form, which can be found by typing "deq.nc.gov/SW-Industrial" into a browser
window and hitting "enter."
• Then, the original signed DMR Forms shall be mailed or otherwise delivered to the
Winston-Salem Regional Office:
North Carolina Department of Environmental Quality(DEQ)
Division of Energy, Mineral and Land Resources (DEMLR)
450 West Hanes Mill Road, Suite 300
Winston-Salem,NC 27105
Permittees are required to register for eDMR within 30 days of the Certificate of Coverage (COC)
issuance date. Permittees shall follow the guidelines for submitting data that are set forth in the
Stormwater eDMR User Manual, available on the Division's website at deq.nc.gov/SW-eDMR.
Until a permittee is registered in eDMR, they shall continue to submit DMRs using the DMR
Upload Form to upload scanned DMRs and mail original signed DMRs to the appropriate Regional
Office.
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FIGURES

Receiving water is Town Branch within the Yadkin Pee-Dee River Basin,designated as Class C waters. Town Branch is not listed in the 2022 Integrated Report 303(d)list of
impaired waters. TMDLs have not been established specific to Town Branch.
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FIGURE NUMBER: 1
GENERAL LOCATION MAP
REFERENCE: 2022 USGS,Yadkinville,NC Quad Lydech Thermal Acoustical Inc.
PROJECT NUMBER: ENM0240047.00 601 East Main Street
SCALE: As Shown Yadkinville,NC 27055

Legend
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FIGURE NUMBER:2 SITE MAP
REFERENCE: Yadkin County GIS Lydech Thermal Acoustical Inc. R
PROJECT NUMBER: ENM0240047.00 601 East Main Street
Yadkinville,NC 27055
SCALE: As Shown

APPENDIX A
CERTIFICATE OF COVERAGE NO. NCG050418
AND
GENERAL PERMIT NO. NCG050000

Certificate of Coverage
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG050000
Certificate of Coverage No. NCG050418
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
Lydall Thermal Acoustical Inc
is hereby authorized to discharge stormwater from a site located at:
Lydall Thermal Accostical, Inc-Yadkinville Facility
601 E Main St
Yadkinville
Yadkin County
to receiving waters designated as UT to Town Branch, class C waters in the Yadkin River Basin(s), in
accordance with the effluent limitations, monitoring requirements, and other conditions set forth in N.C.
General Permit No. NCG050000, issued on 5/30/2023 and effective on 6/1/2023.
This Certificate of Coverage shall become effective on 6/21/2023.
This Certificate of Coverage shall remain in effect for the duration of the General Permit or until rescinded.
Michael Lawyer, Stormwater Program Supervisor
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL,AND LAND RESOURCES
GENERAL PERMIT NO. NCGO50000
TO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
For establishments primarily engaged in the following activities:
Apparel, Printing, Leather, Rubber, &Miscellaneous Manufacturing
In compliance with the provision of North Carolina General Statute 143-215.1,other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission and the Federal Water Pollution Control Act,as amended,this permit is
hereby issued to all owners or operators,hereafter permittees,which are covered by this permit as
evidenced by receipt of a Certificate of Coverage (COC) by the Environmental Management
Commission to allow the discharge of stormwater to the surface waters of North Carolina or to
a separate storm sewer system conveying discharges to surface waters in accordance with the
terms and conditions set forth herein.
Coverage under this General Permit is applicable to:
♦ All owners or operators of stormwater point source discharges associated with activities from
establishments primarily engaged in
• Apparel and Other Finished Products Made from Fabrics and Similar Materials
[Standard Industrial Classification (SIC) 23],
• Printing Publishing and Allied Industries [SIC 27],
• Converted Paper and Paperboard Products [SIC 267],
• Paperboard Containers and Boxes [SIC 265],
• Miscellaneous Manufacturing Industries [SIC 39],
• Leather and Leather Products [SIC 31],and
• Rubber and Miscellaneous Products [SIC 30];
♦ Storm water point source discharges from like industrial activities deemed by The Division of
Energy, Mineral,and Land Resources (DEMLR) to be similar to these operations in the process,
or the discharges, or the exposure of raw materials,intermediate products,by-products,final
products, or waste products.
Except upon DEMLR determination of similarity as provided immediately above, coverage under this
General Permit is not applicable to:
♦ Contaminated stormwater as defined in Part J: Definitions of this permit.
The General Permit shall become effective on June 1, 2023.
The General Permit shall expire at midnight on May 31, 2028.
Signed this 30th day of May 2023.
Original signed by Douglas Ansel
Douglas Ansel,Interim Director
Division of Energy, Mineral,and Land Resources
By the Authority of the Environmental Management Commission

Permit No.NCG050000
TABLE OF CONTENTS
PART A NCGO50000 PERMIT COVERAGE
PART B STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
B-1. Responsible Party
B-2. General Location Map
B-3. Site Map
B-4. Narrative Description of Industrial Process
B-5. Evaluation of Stormwater Outfalls
B-6. Stormwater Best Management Practice (BMP) Summary
B-7. Secondary Containment Plan
B-8. Spill Prevention and Response Procedures
B-9. Solvent Management Plan
B-10. Preventative Maintenance and Good Housekeeping
B-11. Employee Training
B-12. Representative Outfall Status
B-13. Devices Exempt from Analytical Monitoring
B-14. Annual SWPPP Review and Update
B-15. Notice to Modify the SWPPP
B-16. SWPPP Documentation
PART C OPERATIONAL REQUIREMENTS
C-1. Operation and Maintenance of Treatment and Control Systems
C-2. Stormwater Control Measure (SCM) Clean-Out
C-3. Residuals Management
C-4. Corrective Actions
C-5. Draw Down of Treatment Facilities for Essential Maintenance
C-6. Bypasses of Stormwater Treatment Facilities
C-7. Upsets
C-8. Required Notices for Bypasses and Upsets
PART D QUALITATIVE MONITORING OF STORMWATER DISCHARGES
D-1. Visual Inspections
D-2. Qualitative Monitoring Response
PART E ANALYTICAL MONITORING OF STORMWATER DISCHARGES
E-1. Required Baseline Monitoring
E-2. Baseline Sampling Benchmarks
i

Permit No.NCG050000
E-3. Emerging Contaminants
E-4. Methodology for Collecting Samples
E-5. Locations for Collecting Samples
E-6. Tier I Response: Single Benchmark Exceedance
E-7. Tier II Response: Two Consecutive Benchmark Exceedances
E-8. Tier III Response: Four Benchmark Exceedances Within Five Years
PART F SUBMITTAL OF DISCHARGE MONITORING REPORTS (DMRs)
F-1. Deadlines for eDMR Registration
F-2. Discharge Monitoring Report(DMR) Forms Submittal
F-3. DMR Signature and Certification
F-4. Results Below Detection Limits
F-5 Occurrences of No Discharge
F-6. Reports Required if More Frequent Monitoring Has Occurred
F-7. Report Required if Begin Discharging to a Water Not Listed in COC
F-8. Submittal Process before Electronic Discharge Monitoring Reporting (eDMR)
F-9. Qualitative Monitoring Reports
F-10. Monitoring Report Retention
PART G OTHER OCCURANCES THAT MUST BE REPORTED
PART H PERMIT ADMINISTRATION
H-1. Signatory Requirements
H-2. General Permit Expiration
H-3. Planned Changes
H-4. Transfers
H-5. When an Individual Permit May be Required
H-6. When an Individual Permit May be Requested
H-7. General Permit Modification, Revocation and Reissuance, or Termination
H-8. Certificate of Coverage Actions
H-9. Requirement to Report Incorrect Information
H-10. Waivers from Electronic Reporting
H-11. Annual Administering and Compliance Monitoring Fee Requirements
H-12. Flow Measurements
H-13. Test Procedures
H-14. Availability of Reports
H-15. Action Plan Submittal and Approval
PART I COMPLIANCE AND LIABILITY
ii

Permit No.NCG050000
I-1. Compliance Schedule
I-2. Duty to Comply
I-3. Duty to Mitigate
I-4. Civil and Criminal Liability
I-5. Oil and Hazardous Substance Liability
I-6. Property Rights
I-7. Severability
I-8. Duty to Provide Information
I-9. Penalties for Tampering
I-10. Penalties for Falsification of Reports
I-11. Onshore or Offshore Construction
I-12. Duty to Reapply
I-13. Inspection and Entry
I-14. Need to Halt or Reduce not a Defense
PART J DEFINITIONS
iii

Permit No.NCG050000
PART A: NCG05 PERMIT COVERAGE
All persons desiring to have facilities covered by this General Permit must register with the
Division of Energy,Mineral,and Land Resources (DEMLR) by filing a Notice of Intent(NOI)
and paying the applicable fees.The NOI shall be submitted and a Certificate of Coverage
(COC) issued prior to any discharge of stormwater associated with industrial activity that
has a point source discharge to surface waters of the state or to a separate storm sewer
system conveying discharges to surface waters.
Any owner or operator not wishing to be covered or limited by this General Permit may
make application for an individual National Pollutant Discharge Elimination System
(NPDES) permit in accordance with NPDES procedures in 15A NCAC 2H .0100,stating the
reasons supporting the request.Any application for an individual permit shall be made at
least 180 days prior to commencement of discharge.
This General Permit does not cover activities or discharges covered by an individual NPDES
permit until the individual permit has expired or has been revoked.Any person conducting
an activity covered by an individual permit,but which could be covered by this General
Permit may request that the individual permit be revoked and coverage under this General
Permit be provided.
If industrial materials and activities are not exposed to precipitation or runoff as described
in 40 CFR§122.26(g),the facility may qualify for a No Exposure Exclusion from NPDES
stormwater discharge permit requirements.Any owner or operator wishing to obtain a No
Exposure Exclusion from permitting must submit a No Exposure Certification NOI form to
DEMLR; must receive approval from DEMLR;must maintain no exposure conditions unless
authorized to discharge under a valid NPDES stormwater permit; and must recertify the No
Exposure Exclusion annually.
Any facility may apply for new or continued coverage under this permit until a Total
Maximum Daily Load (TMDL) for pollutants for stormwater discharges is established_A
TMDL is for one or more watersheds with one or more impaired waters. The TMDL sets
one or more pollutant-loading limit(s)that affect(s) one or more watersheds,or portion of a
watershed,draining to one or more impaired waters. A list of approved TMDLs for the state
of North Carolina can be found at https://deq.nc.gov/about/divisions/water-
resources/planning/modeling-assessment/tmdls.To not be subject to the TMDL,each
facility with one or more discharges to watersheds affected by a TMDL must demonstrate it
does not have reasonable potential to violate applicable water quality standards for those
pollutants identified in the TMDL as a result of discharges. If DEMLR determines that
discharges have reasonable potential to cause water quality standard violations,the facility
shall apply for an individual permit 180 days prior to the expiration date of this General
Permit.After that individual permit becomes effective,the facility will no longer have
coverage under this General Permit. Note although there is not a TMDL for every impaired
water,the permittee must identify impaired waters in the General Location Map,as outlined
in the Stormwater Pollution Prevention Plan (SWPPP),Part B of this permit. The
Department of Environmental Quality- Division of Water Resources integrated reports
(https:IIdeq.nc.gov/about/divisions/water-resources/planning/modelL g--
assessment/water-quality-data-assessment/integrated-report-files) include assessments of
waters monitored in North Carolina. Use the most recent final report to identify impaired
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Permit No.NCG050000
waters.
Until this permit expires or is modified or revoked,the permittee is authorized to discharge
stormwater to the surface waters of North Carolina or a separate storm sewer system which
has been treated and managed in accordance with the terms and conditions of this General
Permit and the requirements of the permittee's COC.
The permittee's COC is hereby incorporated by reference into this General Permit.Any
violation of the COC is a violation of this General Permit and subject to enforcement action
as provided in the General Permit.
Any other point source discharge to surface waters of the state is prohibited unless it is an
allowable non-stormwater discharge or is covered by another permit,authorization,or
approval.The discharges allowed by this General Permit shall not cause or contribute to
violations of Water Quality Standards. Discharges allowed by this permit must meet
applicable wetland standards as outlined in 15A NCAC 213.0230 and.0231 and water
quality certification requirements as outlined in 15A NCAC 21-1.0500.
If industrial activities expand or change after issuance of the COC such that the types of
discharges are affected,the permittee must first contact the Division to determine if
modifications to the COC are necessary.
This permit does not relieve the permittee's responsibility for compliance with any other
applicable federal,state,or local law,rule,standard,ordinance,order,or decree. (i.e.,take
of Endangered Species Act(ESA)-protected species prohibited under section 9 of the ESA).
Other federal Services can provide technical assistance to avoid violation of the ESA section
9.
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Permit No.NCG050000
PART B: STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
The permittee shall develop a Stormwater Pollution Prevention Plan (SWPPP).The SWPPP
shall be maintained on site unless exempted from this requirement by DEMLR.The
permittee shall implement the SWPPP and all Best Management Practices (BMPs)
consistent with the provisions of this permit,to control contaminants entering surface
waters.
These items shall exist for the duration of the permit term and made available to the
Director upon request and also shall be sent to the Regional Office upon request.The
SWPPP shall be considered public information in accordance with I-8 of this General Permit.
The SWPPP shall include,at a minimum,the following items:
B-1. Responsible Party
The SWPPP shall identify specific position(s) responsible for the overall coordination,
development,implementation,and revision of the SWPPP. Responsibilities for all
components of the SWPPP shall be documented and position assignments provided.
B-2. General Location Map
The General Location Map shall be a USGS quadrangle map or appropriately drafted
equivalent map that includes:
(a) The facility's location in relation to transportation routes and surface waters;
(b) The name of the receiving waters to which the stormwater outfalls discharge, or if the
discharge is to a municipal separate storm sewer system,the name of the municipality
and the ultimate receiving waters;
(c) Any impaired receiving waters,use the most recent final integrated report
(https://deq.nc.govlabout/divisions/water-resources/planning/modeling-
assessment/water-quality-data-assessment/integrated-report-files) to identify impaired
waters;
(d) If the site is in a watershed for which a TMDL has been established,include a list of the
parameter(s) of concern (those exceeding water quality standards).
B-3. Site Map
The Site Map shall include the following at a scale sufficient to clearly depict all required
features. At a minimum,the map shall include:
(a) Site property boundary;
(b) Site topography;
(c) Buildings,roads,parking areas and other built-upon areas;
(d) Industrial activity areas (including,but not limited to: vehicle maintenance activities,
waste disposal activities, or equipment,storage of materials, disposal areas,process areas,
loading and unloading areas,and haul roads);
(e) Stormwater discharge outfalls and a table of latitudes and longitudes;
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Permit No.NCG050000
(f) Delineated drainage area for each outfall and a table of impervious percentage for each
drainage area;
(g) Stormwater Control Measures (SCMs);
(h) All stormwater collection/drainage features,structures and direction of flow;
(i) On-site and adjacent surface waters and wetlands; and
(j) A graphic scale and north arrow.
B-4. Narrative Description of Industrial Processes
The narrative description shall include:
(a) Storage practices;
(b) Loading and unloading activities;
(c) Outdoor process areas;
(d) Dust or particulate generating and control processes;
(e) Waste disposal practices; and
(f) A list of potential pollutants that could be expected to be present in the Stormwater
discharge for each outfall.
B-5. Evaluation of Stormwater Outfalls
On an annual basis,the permittee shall evaluate all stormwater outfalls for the presence of
non-Stormwater discharges. If non-stormwater discharges are present,the permittee shall
identify the source and record whether the discharge is otherwise permitted by rule or a
different permit.The permittee shall evaluate the environmental significance of the non-
stormwater discharges and include a summary written record and certification statement.
The certification statement and summary written record shall be retained with the SWPPP.
and shall be dated and signed in accordance with the requirements found in H-1.
B-6. Stormwater BMP Summary
The installation and implementation of BMPs shall be based on the assessment of the
potential for sources to contribute significant quantities of pollutants to stormwater
discharges and on data collected through monitoring of stormwater discharges. BMP
Summary shall be reviewed and updated annually.
The BMP Summary shall include:
(a) Written record of the specific rational for installation and implementation of the
selected site BMPs.
(b) Structural and nonstructural practices to minimize the exposure and transport of
materials in stormwater.
(c) BMPs for vehicle maintenance activities.
B-7. Secondary Containment Plan
In order to prevent leaks and spills from contaminating stormwater runoff,secondary
containment is required for: bulk storage of liquid materials including petroleum products;
storage in any amount of water priority chemicals listed in Section 313 of Title III of the
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Permit No.NCG050000
Superfund Amendments and Reauthorization Act(SARA); and storage of hazardous
substances in any amount.
For facilities subject to the federal Spill Prevention, Control,and Countermeasure (SPCC)
regulation,the SPCC Plan may be used to support compliance with this requirement.
The Secondary Containment Plan shall include:
(a) A table or summary of tanks and stored materials equipped with secondary containment
systems;
(b) Manually activated valves or other similar devices that are securely closed with a locking
mechanism if the secondary containment devices are connected to stormwater
conveyance system;
(c) A commitment to visually observe any accumulated stormwater prior to release for color,
foam, outfall staining,visible sheens,and dry weather flow; and
(d) Records on every release from a secondary containment system that include:the
individual making the observation,a description of the accumulated stormwater,and the
date and time of the release. These records shall be kept for a period of five (5)years.
B-8. Spill Prevention and Response Procedures
A responsible person shall be on-site at all times during facility operations that have
potential to contaminate stormwater runoff through spills or exposure of materials
associated with the facility operations. For facilities subject to the federal SPCC regulation,
the SPCC Plan may be used to support compliance with this requirement.
The Spill Prevention and Response Procedures (SPRP) shall include:
(a) An assessment of areas of the facility where there is the potential for spills;
(b) A list of trained facility personnel responsible for implementing the SPRP;
(c) A signed and dated acknowledgement in which staff members accept responsibilities for
the SPRP;
(d) An inventory of spill response materials and equipment and the locations for storing
these items;
(e) Written procedures for proper cleanup and disposal of spilled materials; and
(f) A list of significant spills or leaks of pollutants that have occurred during the previous
three (3)years and any corrective actions taken to mitigate spill impacts or the notation
that no spills have occurred. This list shall be updated on annual basis.
B-9. Solvent Management Plan
The Solvent Management Plan shall be incorporated as a separate chapter into the
Stormwater Pollution Prevention Plan (SWPPP).
The Solvent Management Plan (SMP) shall include:
(a) an annually updated and quantified inventory of solvents present on site during the
previous three years;
(b) a narrative description of the facility locations and uses of solvents;
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Permit N0.NCG050000
(c) the method of disposal,including quantities disposed on-site and off-site; and
(d) the management procedures and engineering measures for assuring that solvents do
not spill or leak into stormwater.
Should the facility already be in possession of a plan that addresses
If solvents are not stored or used onsite,the owner must certify that in the SWPPP.DEMLR
may at is discretion require submittal,review,and approval of the SMP. The 1ermittee shall
include the following signed certification statement on each discharge monitoring report:
"Based upon my inquiry of the person or persons directly responsible for managing
compliance with the permit requirement for managing solvents, I certify that to best of my
knowledge and belief,no leak,spill,or dumping of concentrated solvents into the
stormwater or onto areas which are exposed to rainfall or stormwater runoff has occurred
since filing the last discharge monitoring report. I further certify that this facility is
implementing all provisions of the Solvent Management Plan included in the Stormwater
Pollution Prevention Plan."
B-10. Preventative Maintenance and Good Housekeeping Program
A preventative maintenance and good housekeeping program (PMGHP) shall be developed
and implemented.
The PMGHP shall include:
(a) A schedule of inspections,maintenance,and housekeeping measures for industrial
activity areas including,at a minimum,all material storage and handling areas,disposal
areas,process areas,loading and unloading areas,haul roads,and vehicle maintenance
areas. Inspections shall occur at a minimum on a quarterly schedule (January-March,
April-June,July-September, October-December).
(b) A plan for disposing spent lubricants and fuels properly and in accordance with applicable
federal disposal regulations;
(c) A record of inspections,maintenance,and housekeeping activities.
B-11. Employee Training
Employee training shall be developed and provided on an annual basis for facility personnel
responsible for operations that have the potential to contaminate stormwater runoff. The
training shall be documented by the date,signature,and printed or typed name of each
employee trained.
The annual employee training shall include the following topics if applicable to the facility:
(a) General stormwater awareness;
(b) Spill response training;
(c) Used oil management;
(d) Spent solvent management;
(e) Secondary containment releases;
(f) Fueling procedure;
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Permit No.NCG050000
(g) Disposal of spent abrasives;
(h) Disposal of vessel wastewaters;
(i) Used battery management.
B-12. Representative Outfall Status
If a facility has multiple discharge locations with substantially identical stormwater
discharges that are required to be sampled,the permittee may petition the Director for
representative outfall status (ROS). If it is established that the stormwater discharges are
substantially identical and the permittee is granted representative outfall status,then
analytical sampling requirements may be performed at a reduced number of outfalls.
If DEMLR has granted ROS,documentation from DEMLR shall be part of the SWPPP. The
permittee shall notify DEMLR of any site or activity modifications that result in a change to
ROS.
B-13. Devices Exempt from Analytical Monitoring
The permittee may request a device be exempted from analytical monitoring based on as-
built plans, Engineer's Certification, design calculations, and approved construction
drawings. Exemption from analytical monitoring is contingent on Regional Office approval.
B-14. Annual SWPPP Review and Update
All aspects of the SWPPP shall be reviewed and updated on an annual basis.The permittee
shall amend the SWPPP whenever there is a change in design,construction,operation,site
drainage,maintenance, or configuration of the physical features which may have a
significant effect on the potential for the discharge of pollutants to surface waters.
In addition,the SWPPP update shall include a review and comparison of sample analytical
data to benchmark values (if applicable) over the past year,including a discussion about
Tiered Response status.The permittee shall use DEMLR's Annual Summary Data Monitoring
Report(DMR) form, available from the Stormwater Permitting Program's website
(https://deq.nc.gov lab out/divis ions/energy-mineral-land-resources/npdes-stormwater-
gp-S)
1345. Notice to Modify the SWPPP
The Director may notify the permittee when the SWPPP does not meet one or more of the
minimum requirements of the permit.Within 30 days of such notice,the permittee shall
submit a time schedule to the Director for modifying the SWPPP to meet minimum
requirements.Upon completion of the modifications,the permittee shall provide
certification in writing in accordance with H-1 and H-7 of this permit to the Director that
the changes have been made.
1346. SWPPP Documentation
Copies of the SWPPP shall be maintained on-site and be available electronically to DEMLR
upon request.These records or copies shall be maintained for a period of at least five years.
This period may be extended by request of the Director at any time [40 CFR 122.41].
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Permit No.NCGOS0000
PART C: OPERATIONAL REQUIREMENTS
Permitted operations shall be subject to the following operational requirements.
C-1. Operation and Maintenance of Treatment and Control Systems
The permittee shall at all times:
(a) Properly operate and maintain all facilities and systems of treatment and control
and related appurtenances which are installed or used by the permittee to achieve
compliance with the conditions of this permit.
(b) Implement laboratory controls and quality assurance procedures for onsite
laboratories and/or on-site testing.
(c) Operate back-up or auxiliary facilities or similar systems which are installed by a
permittee only when the operation is necessary to achieve compliance with the
conditions of this permit[40 CFR 122.41(e)].
C-2. SCM Clean-Out
When applicable, SCMs must be cleaned out when sediment storage capacity equals or
exceeds SO percent of the design sediment volume or if visible sedimentation is leaving the
property.
C-3. Residuals Management
The residuals generated from treatment facilities must be disposed of in accordance with
applicable standards and in a manner such as to prevent any pollutants from such materials
from entering waters of the state or navigable waters of the United States.
C-4. Corrective Actions
The permittee shall take corrective actions if self-inspections required by this permit
identify a need for corrective actions,a facility fails to perform satisfactorily, or a facility
creates nuisance conditions.
Corrective actions shall include,but not be limited to: maintenance,modifications, or
additions to existing control measures,the construction of additional or replacement
treatment or disposal facilities, or implementation of new BMPs. Corrective actions shall be
completed as soon as possible considering adverse weather and site conditions
C-5. Draw Down of Treatment Facilities for Essential Maintenance
The permittee may draw down stormwater treatment facilities if these conditions are met:
(a) Analytical sampling data of the water stored in the treatment facility demonstrates
that the discharge will not exceed benchmarks in this permit. The sampling data
shall be collected no more than 14 calendar days prior to the draw down; and
(b) The drawdown is for essential maintenance to assure efficient operation.
C-6. Bypasses of Stormwater Treatment Facilities
Bypass is prohibited,and DEMLR may take enforcement action against a permittee for
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Permit No.NCG050000
bypass unless either of the following conditions are met:
(a) The bypass was unavoidable to prevent loss of life,personal injury or severe
property damage;
(b) There were no feasible alternatives to the bypass,such as the use of auxiliary
control facilities,retention of stormwater,or maintenance during normal periods of
equipment downtime or dry weather.This condition is not satisfied if adequate
backup controls should have been installed in the exercise of reasonable
engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance.The permittee shall submit
notices identify the reason(s) for the bypass as required under C-8 below.
C-7. Upsets
Diversions of stormwater from treatment facilities may be considered as an upset, rather
than a bypass, if the permittee can demonstrate to the Director that all of the following
conditions have been met. In any enforcement proceeding,the permittee seeking to
establish the occurrence of an upset has the burden of proof.
(a) The permittee demonstrates that the upset was not caused by operational error,
improperly designed treatment or control facilities,lack of preventive maintenance, or
careless or improper operation.
(b) The permittee agrees to take remedial measures if necessary.
(c) The permittee submitted notice of the upset and identified the cause(s) of the upset as
required under CC=8 below.
C-8. Required Notice for Bypass or Upset
After a permittee becomes aware of an occurrence that must be reported,the permittee
shall contact the appropriate Division regional office within the timeframes and in
accordance with the requirements listed in Table 1 below. Occurrences outside normal
business hours may also be reported to the Department's Environmental Emergency
Hotline at(800) 858-0368.
Table 1: Bypass and Upset Reporting Requirements
Event Reporting Requirements
[40 CFR 122.41(m)(3)]
Anticipated Bypass Written report at least ten days prior to the anticipated
bypass. The written report shall include an evaluation of the
anticipated quantity,quality,and effect of the bypass.
Unanticipated Bypass or Upset Oral or electronic notification within 24 hours of the event,
and
Written report within 7 calendar days of the event. The written
report shall include an evaluation of the quantity,quality,and
effect of the b ass.
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Permit No.NCG050000
PART D: QUALITATIVE MONITORING OF STORMWATER DISCHARGES
The purpose of qualitative monitoring is to implement a quick and inexpensive way to
evaluate the effectiveness of the permittee's SWPPP,to identify the potential for new
sources of stormwater pollution,and to prompt the permittee's response to pollution.
D-1. Visual Inspections
(a) Visual inspections shall be made at each stormwater discharge outfall (SDO) that
discharges stormwater associated with industrial activity unless representative
outfall status specifically for visual monitoring has been approved in writing by
DEMLR.
(b) Visual inspections shall be performed concurrent with required analytical monitoring.
(c) Visual inspections are not required to be performed outside of the facility's normal
operating hours.
(d) Visual inspections shall be recorded on DEMLR's Stormwater Discharge Outfall
Qualitative Monitoring Report (QMR) form and shall include observations of:
• Color
• Odor
• Clarity
• Floating Solids
• Suspended Solids
• Foam
• Oil Sheen
• Deposition at or immediately below the outfall
• Erosion at or immediately below the outfall,and
• Other obvious indicators of stormwater pollution.
(e) Inability to perform inspections because of adverse weather or lack of discharge during
the monitoring period shall not constitute a failure to monitor if the event is
documented in the SWPPP and recorded on the Qualitative Monitoring Report.
D-2. Qualitative Monitoring Response
(a) If the permittee's qualitative monitoring indicates that the SWPPP and/or existing
stormwater BMPs are ineffective, or that significant stormwater contamination is
present,then the permittee shall investigate potential causes,evaluate the feasibility
of corrective actions,and implement those feasible corrective actions within sixty
(60) days.
(b) A written record of the permittee's investigation,evaluation,and response actions
shall be kept in the SWPPP.
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Permit No.NCG050000
PART E: ANALYTICAL MONITORING OF STORMWATER DISCHARGES
This part applies to industrial stormwater discharges from covered activities.
E-1. Required Baseline Sampling
The permittee shall perform baseline sampling of all stormwater discharge outfalls and/or
authorized representative discharge outfalls in accordance with this part.
(a) Grab samples shall be collected,analyzed,and reported for the following
parameters: (Total Suspended Solids (TSS),pH,Chemical Oxygen Demand (COD)).
In addition, grab samples shall be analyzed for Non-Polar Oil&Grease in vehicle or
equipment maintenance areas in which more than 55 gallons of new motor oil
and/or hydraulic oil per month is used when averaged over the calendar year.
(b) In addition to the grab samples,the average monthly usage of new motor and
hydraulic oil used for vehicle maintenance at the facility shall be tracked and
recorded.
(c) The total rainfall amount for each sampling event shall be recorded in inches. Total
rainfall shall be determined from an on-site rain gauge or a regional rain gauge
located within one (1) mile of the facility.
(d) Samples shall be collected from four separate monitoring periods per year. A
minimum of thirty(30) days must separate any two sampling events during the
following periods:
• January 1 -March 31
• April 1 -June 30
• July 1 -September 30.
• October 1 -December 31
(e) If an outfall was in Tier Two or Tier Three status under the previous permit,the
permittee shall continue monthly monitoring and reporting requirements at said
outfall until relieved by the provisions of this permit or DEMLR.
(f) Existing facilities previously permitted and renewed under this General Permit will
have a 6 month grace period before analytical monitoring is required.Upon
issuance of this General Permit,renewed COCs will begin monitoring in
Quarter 1 of 2024 (January 1st) and follow the above-mentioned monitoring
schedule.
E-2. Baseline Sampling Benchmarks
(a) Analytic results for each parameter shall be compared to the benchmark values for the
appropriate receiving stream classification as provided in Table 2. An exceedance of a
benchmark value is not a permit violation; however,failure to respond in accordance
with E-2(b) below is a permit violation.
(b) An exceedance of any benchmark value shall require a tiered response for that outfall.
A single exceedance of a benchmark value shall require a Tier One response for that
outfall. Two benchmark value exceedances in a row shall require a Tier Two response
for that outfall. Four benchmark exceedances for a parameter within the five (5)year
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Permit No.NCG050000
permit cycle shall require a Tier Three response for that outfall. For purposes of
benchmark comparison and Tiered response actions,the permittee shall use the
analytical results from the first sample with valid results.
(c) Baseline sampling benchmarks shall be in accordance with Table 2 below.
Table 2: Summary of Quarterly Baseline Sampling Requirements
Parameter Receiving Stream
Parameter Benchmark
Code Classification(s)1
All,except below 100 mg/L
CO530 Total Suspended Solids (TSS)
B W,0RW,jr, PNA 50 mg/L
400 pHz Freshwater 6.0-9.0 S.U.
Saltwater 6.8-8.5 S.U.
46529 Total Rainfall of Sampled
Event Inches
340 Chemical Oxygen Demand All 120 mg/L
Average Monthly Motor Oil
NCOIL Usage at the Facility - -
allons month
For vehicle or equipment maintenance areas in which more than 55 Gallons of motor oil
and/or hydraulic oil is used per month.
Non-Polar Oil&Grease
552 All 15 mg/L
per EPA Method 1664 SGT-HEM
1 Defined in Definitions Section
2 Grab samples shall be analyzed for pH within 15 minutes of collection.
E-3. Emerging Contaminants
If notified by the Director,the permittee shall monitor for Emerging Contaminants such as
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) in accordance with written notification.
For more information about PFAS and other Emerging Contaminants,please visit
deq.nc.govInews/key-issues/emerging-compounds/understanding-pfas.
E-4. Methodology for Collecting Samples
(a) Outfall monitoring efforts shall begin with the first measurable storm event in the
monitoring period that occurs during the facility's normal operating hours.
(b) Sampling is not required to be performed during adverse weather conditions.
(c) Samples collected shall be characteristic of the volume and nature of the permitted
discharge.
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Permit No.NCG050000
(d) Grab samples shall be collected within the first 30 minutes of discharge from an outfall
and continue until all outfalls that are discharging have been sampled.
(e) Outfalls that are not sampled during the first measurable storm event in the monitoring
period shall be sampled during the next measurable storm event in the monitoring
period until a sample has been collected.
(f) If, during the entire monitoring period,there is no discharge from an outfall during any
measurable storm event then the permittee shall:
a. Report"No Discharge"in the DMR,
b. Note"No Discharge" in the SWPPP,and
c. Submit the DMR within 30 days after the end of the monitoring period.
(g) Lack of a discharge from an outfall for the monitoring period shall not constitute failure
to monitor as long as the above permit conditions are met.
(h) If the sampled storm event coincides with a known non-stormwater discharge that is
deemed permitted under 15A NCAC 02 .0106,then this shall be noted on the DMR.
E-5. Locations for Collecting Samples
Samples shall be collected at all stormwater discharge outfalls (SDO) that discharge
stormwater associated with industrial activity. If DEMLR has issued a representative outfall
status approval letter,then the permittee shall collect samples from all SDOs in accordance
with the SDO approval letter.
(a) All samples shall be taken before the discharge joins or is diluted by any other waste
stream,body of water, or substance.
(b) Monitoring points as specified in this General Permit shall not be changed without
written notification to and approval by DEMLR [40 CFR 122.41(j)].
E-6. Tier One Response: Single Benchmark Exceedance
The outfall(s)will remain in Tier One status until three consecutive samples are under the
benchmark or are inside the benchmark range for all parameters.
(a) If any sampling result is above the benchmark value or outside the benchmark
range for any parameter at any outfall,then the permittee shall respond in
accordance with Table 3 to identify and address the source of that exceedance for
that parameter.
(b) Each required response shall be documented in the SWPPP as each action occurs
including; the date and value of the benchmark exceedance,the date DEMLR's
Regional Office was notified of the exceedance,the inspection date,the personnel
conducting the inspection,the selected feasible actions,and the date the selected
feasible actions were completed.
(c) Each exceedance of a benchmark parameter shall individually require a Tier I
response.
(d) If three consecutive samples produce results below benchmark for all parameters,
then the outfall"resets" and exits Tier Relief.
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Permit No.NCG050000
Table 3: Tier One Response for a Benchmark Exceedance
Timeline From
Receipt of Sampling Tier One Required Response/Action
Results
Continuously i. Document the exceedance and each required response/action in
the SWPPP in accordance with E-6(b) above.
Within two weeks ii. Notify DEMLR's Regional Office of the exceedance date and value
via email,in writing,or,when it is developed,an electronic form
created by DEMLR for reporting exceedances.
iii. Conduct a stormwater management inspection.
iv. Identify and evaluate possible causes of the benchmark
exceedance.
Within one month v. Select specific,feasible courses of action to reduce concentrations
of the parameter(s) of concern including,but not limited to,
source controls,operational controls,or physical improvements.
Within two months vi. Implement the selected feasible actions.
E-7. Tier Two Response: Two Consecutive Benchmark Exceedances
The outfall(s)will remain in Tier Two status until three consecutive samples are under the
benchmark or are inside the benchmark range for all parameters.
(a) If any two consecutive sampling results in a row for the same parameter are above
the benchmark value or outside the benchmark range at an outfall,then the
permittee shall respond in accordance with Table 4 to identify and address the
source of exceedances for that parameter.
(b) After implementing the specific feasible courses of action,perform monthly
monitoring at every outfall where a sampling result exceeded the benchmark value
for two consecutive samples for all parameters until three samples in a row are
below the benchmark value or are inside the benchmark range.
(c) Each required response shall be documented in the SWPPP as each action occurs
including;the dates and values of the benchmark exceedances,the date DEMLR's
Regional Office was notified of the consecutive exceedances,the inspection date,the
personnel conducting the inspection,the selected feasible actions,the date the
selected feasible actions were completed,and the monthly monitoring results.
(d) Each pair of two consecutive exceedances of a single benchmark parameter at a
single outfall shall constitute an event that requires a Tier Two response.
Subsequent events shall not include the same exceedances that have been
addressed in a Tier Two response.
(e) If three consecutive samples produce results below benchmark for all parameters,
then the outfall"resets"and exits Tier Response.
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Permit No.NCG050000
Table 4: Tier Two Response for Two Consecutive Benchmark Exceedances
Timeline From
Receipt of Sampling Tier Two Required Response/Action
Results
Continuously i. Document the exceedance and each required response/action in
the SWPPP in accordance with E-7(c) above.
Within two weeks H. Notify DEMLR's Regional Office of the exceedance date and value
via email,in writing,or,when it is developed,an electronic form
created by DEMLR for reporting exceedances.
iii. Conduct a stormwater management inspection.
iv. Identify and evaluate possible causes of the benchmark
exceedance.
Within one month v. Select specific,feasible courses of action to reduce
concentrations of the parameter(s) of concern including,but not
limited to,source controls,operational controls,or physical
improvements.
Within two months vi. Implement the selected feasible actions.
vii. Implement monthly monitoring at every outfall where a
sampling result exceeded the benchmark value for two
consecutive samples for all parameters until three samples in a
row are below or within the benchmark value.
E-8. Tier Three Response: Four Benchmark Exceedances Within 5 Years.
The outfall(s)will remain in Tier Three status until three consecutive samples are under the
benchmark or are inside the benchmark range for all parameters.
(a) If any four sampling results within a five-year period for any single parameter are
above the benchmark value or outside the benchmark range at a sampled outfall,
then the permittee shall respond in accordance with Table 5 to identify and address
the source of exceedances for that parameter at that outfall.
(b) An outfall enters Tier Three status when there are 4 exceedances of the same
parameter in a single permit cycle regardless of previous Tiers.
(c) The permittee shall prepare a written Action Plan and submit to DEMLR's Regional
Office for review and approval within thirty(30) days of receipt of the fourth
analytic monitoring data point that exceeds the benchmark value. At a minimum,
the Action Plan shall include:
• documentation of the four benchmark exceedances,
• an inspection report that covers the industrial activities within the drainage
area of the outfall with the exceedances (including the date of the inspection and
the personnel conducting the inspection),
• an evaluation of standard operating procedures and good housekeeping
procedures,
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Permit No.NCG050000
• identification of the source(s) of exceedances,
• specific actions that will be taken to remedy the identified source(s) with a
schedule for completing those actions,and
• a monitoring plan to verify that the Action Plan has addressed the source(s).
(d) The permittee shall keep the Action Plan in the SWPPP and document when each
specific action was carried out and by whom.
(e) The permittee shall contact DEMLR's Regional Office when all actions in the Action
Plan are completed.
(f) If three consecutive samples produce results below benchmark for all parameters,
then the outfall"resets" and exits Tier Response.
Table 5: Tier Three Response for Four Benchmark Exceedances Within Five Years
Timeline From
Receipt of Fourth Tier Three Required Response/Action
Sampling Result
Continuously i. Document the exceedances and each required response/action in
the Action Plan in accordance with E-8(c) above.
ii. Implement monthly monitoring for all parameters at the subject
outfall and continue until three samples in a row are below or
within the benchmark value.
Within two weeks iii. Notify DEMLR's Regional Office of the exceedance date and value
via email,in writing,or,when it is developed,an electronic form
created by DEMLR for reporting exceedances.
iv. Conduct a stormwater management inspection.
v. Identify and evaluate possible causes of the benchmark
exceedance.
Within one month vi. Prepare an Action Plan that should include specific,feasible
courses of action to reduce concentrations of the parameter(s) of
concern including,but not limited to,source controls,
operational controls,or physical improvements and submit to
DEMLR's Regional Office for review and approval in accordance
with Part H-15.
Upon DEQ Approval vii. Implement the approved Action Plan.
Upon Completion of viii.Notify DEMLR's Regional Office of Action Plan completion.
Approved Action Plan
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Permit No.NCG050000
PART F: SUBMITTAL OF DISCHARGE MONITORING REPORTS (DMRs)
F-1. Deadlines for eDMR Registration
Unless otherwise informed by the Director, permittees are required to register for eDMR
within 30 days of the Certificate of Coverage issuance date. Permittees shall follow the
guidelines for submitting data that are set forth in the Stormwater eDMR User Manual,
available on the Division's website at deq.nc.gov/SW-eDMR.Until a permittee is registered
in eDMR,they shall continue to submit DMRs using the DMR Upload Form to upload
scanned DMRs and mail original signed DMRs to the appropriate Regional Office. For COCs
issued between March 1-31,June 1-30, September 1-30 or December 1-31,sampling shall
not commence until the next sampling period following initial issuance of the COC.
F-2. Discharge Monitoring Report(DMR) Forms Submittal
Analytical results within the monitoring period shall be submitted no later than 30 days from
the date the facility receives all the sampling results. Samples analyzed in accordance with
the terms of this General Permit shall be recorded on DMR forms provided by the Director.
DMR forms are available on DEMLR's website (https:IIdeq.nc.gov/aboutZdivisionslenergy-
mineral-land-res ources./np des-stormwater-gps.)
F-3. DMR Signature and Certification
DMRs shall be signed and certified by a person meeting the Signatory requirements in H-1.
F-4. Results Below Detection Limits
When results are below detection limit,they shall be reported in the format, "<XX mg/L,"
where XX is the numerical value of the detection limit.
F-5. Occurrences of No Discharge
If no discharge occurs during the sampling period,the permittee must record that in the
facility's monitoring records within 30 days of the end of the sampling period. "No
Discharge"shall be reported on the Annual Summary Discharge Monitoring Report(DMR).
F-6. Reports Required if More Frequent Monitoring Has Occurred
Monitoring conducted in addition to permit requirements shall be included in the DMR.The
permittee is encouraged to take more samples than required by the permit during a monitoring
period to help identify potential causes of exceedance(s). When taking additional samples,the
permittee may not use the lowest recorded results for compliance purposes to avoid required
Tier Response actions.Additional sampling is for informational purposes only and will not
result in additional requirements.
F-7. Report Required if Discharging to a Water Not Listed in the COC
The permittee shall request a modification to the COC from DEMLR prior to discharging from a
new stormwater discharge outfall (SDO) to a waterbody that is not listed on the most current
COC.
F-8. Submittal Process before Electronic Discharge Monitoring Reporting(eDMR)
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Permit No.NCG050000
Original,signed DMRs shall be scanned and uploaded to the electronic DMR submittal form,
which can be found by typing"deq.nc.gov/SW-Industrial"into a browser window and hitting
"enter."
Then,the original signed DMRs shall be mailed or otherwise delivered to the appropriate
Regional Office,which is indicated at: https://deq.nc.gov/contact/regional-offices/.
F-9. Qualitative Monitoring Reports
The permittee shall record the required qualitative monitoring observations on the SDO
Qualitative Monitoring Report form provided by DEMLR and shall retain the completed
forms on site. Qualitative monitoring results shall not be submitted to DEMLR, except upon
DEMLR's specific requirement to do so. Qualitative Monitoring Report forms are available
on DEMLR's website (https://deq.nc.gov/about/divisions/energy-mineral-land-
resources/npdes-stormwater-gps). Please note that permittees may use their own forms to
record qualitative monitoring results as long as they include all required items.
F-10. Monitoring Report Retention
Copies of the following reports shall be maintained on-site or be available electronically to
DEMLR upon request.These records or copies shall be maintained for a period of at least 5
years from the date of the sample,measurement,report, or Notice of Intent application.This
period may be extended by request of the Director at any time [40 CFR 122.41].
(a) Calibration and maintenance records,
(b) Original recordings for continuous monitoring instrumentation,
(c) DMRs and eDMRs or other electronic DMR report submissions,
(d) Qualitative monitoring records,and
(e) Copies of all data used to complete the Notice of Intent to be covered by this General
Permit.
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Permit No.NCG050000
PART G: OTHER OCCURENCES THAT MUST BE REPORTED
After a permittee becomes aware of an occurrence that must be reported,permittee shall contact
the appropriate Division regional office within the tmeframes and in accordance with the other
requirements listed in Table 6 below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at(800) 858-0368.
The reporting requirements are listed in Table 7 below.
Table 7: Other Occurrences that Shall Be Reported
Occurrence Reporting Timeframes(After Discovery) and
Other Requirements
Visible sediment deposition in a (a) Within 24 hours,an oral or electronic notification.
stream or wetland (b) Within 7 calendar days,a report that contains a
description of the sediment and actions taken to address
the cause of the deposition.Division staff may waive the
requirement for a written report on a case-by-case basis.
(c) If the stream is listed as impaired on the DWR Integrated
Report for sediment-related causes,the permittee may be
required to perform additional monitoring,inspections or
apply more stringent practices if staff determine that
additional requirements are needed to assure compliance
with the federal or state impaired-waters conditions.
Oil spills if they are:
• 25 gallons or more,
• less than 25 gallons but cannot (d) Within 24 hours,an oral or electronic notification. The
be cleaned up within 24 hours, notification shall include information about the date,time,
• cause sheen on surface waters nature,volume and location of the spill or release.
(regardless of volume),or
• are within 100 feet of surface
waters(regardless of volume).
Releases of hazardous substances
in excess of reportable quantities
under Section 311 of the Clean (e) Within 24 hours,an oral or electronic notification. The
Water Act Ref:40 CFR 110.3and notification shall include information about the date,time,
40 CFR 117.3) or section 102 of nature,volume and location of the spill or release.
CERCLA(Ref:40 CFR 302.4) or
G.S.143-215.85
Anticipated bypasses [40 CFR (f) A report at least ten days before the date of the bypass,
122.41(m)(3)] if possible. The report shall include an evaluation of the
anticipated quality and effect of the bypass.
Unanticipated bypasses [40 CFR (g) Within 24 hours,an oral or electronic notification.
122.41(m)(3)] (h) Within 7 calendar days,a report that includes an
evaluation of the quality and effect of the bypass.
Noncompliance with the (i) Within 24 hours,an oral or electronic notification.
conditions of this permit that may (j) Within 7 calendar days,a report that contains a
endanger health or the description of the noncompliance,and its causes;the
environment[40 CFR period of noncompliance,including exact dates and times,
122.41(1)(7)] and if the noncompliance has not been corrected,the
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Permit No.NCG050000
anticipated time noncompliance is expected to continue;
and steps taken or planned to reduce,eliminate,and
prevent reoccurrence of the noncompliance. [40 CFR
122.41(1)(6).
(k) Division staff may waive the requirement for a written
report on a case-by-case basis.
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Permit No.NCG050000
PART H: PERMIT ADMINISTRATION
H-1. Signatory Requirements
All applications,reports,or information submitted to the Permitting Issuing Authority shall
be signed and certified [40 CFR 122.41(k)].
(a) All Notices of Intent to be covered under this General Permit shall be signed as follows:
• For a corporation: by a responsible corporate officer. For the purpose of this
Section,a responsible corporate officer means: (a) a president,secretary,
treasurer or vice president of the corporation in charge of a principal business
function,or any other person who performs similar policy or decision making
functions for the corporation,or(b)the manager of one or more manufacturing,
production,or operating facilities,provided,the manager is authorized to make
management decisions which govern the operation of the regulated facility
including having the explicit or implicit duty of making major capital
investment recommendations,and initiating and directing other
comprehensive measures to assure long term environmental compliance with
environmental laws and regulations;the manager can ensure that the necessary
systems are established or actions taken to gather complete and accurate
information for permit application requirements; and where authority to sign
documents has been assigned or delegated to the manager in accordance with
corporate procedures.
• For a partnership or sole proprietorship: by a general partner or the
proprietor,respectively; or
• For a municipality,State,Federal,or other public agency:by either a
principal executive officer or ranking elected official [40 CFR 122.22].
(b) All reports required by this General Permit and other information requested by
the Permit Issuing Authority shall be signed by a person described in paragraph
(a) above or by a duly authorized representative of that person.A person is a
duly authorized representative only if.
• The authorization is made in writing by a person described above;
• The authorization specified either an individual or a position having
responsibility for the overall operation of the regulated facility or activity,
such as the position of plant manager,operator of a well or well field,
superintendent,a position of equivalent responsibility,or an individual or
position having overall responsibility for environmental matters for the
company. (A duly authorized representative may thus be either a named
individual or any individual occupying a named position.);and
• The written authorization is submitted to the Permit Issuing Authority[40 CFR 122.22].
(c) Changes to authorization: If an authorization under paragraph (b) of this section is
no longer accurate because a different individual or position has responsibility for
the overall operation of the facility,a new authorization satisfying the requirements
of paragraph (b) of this section must be submitted to the Director prior to or
together with any reports,information,or applications to be signed by an
authorized representative [40 CFR 122.22].
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Permit No.NCG050000
(d) Any person signing a document under paragraphs a. or b. of this section,or
submitting an electronic report(e.g.,eDMR), shall make the following
certification [40 CFR 122.22]. No other statements of certification will be
accepted.
'7 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 forgathering 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 offines and imprisonmentfor knowing violations."
H-2. General Permit Expiration
General permits will be effective for a term not to exceed five years, at the end of which
DEMLR may renew them after all public notice requirements have been satisfied. If a
general permit is renewed, existing permittees do not need to submit a renewal request or
pay a renewal fee unless directed by DEMLR. New applicants seeking coverage under a
renewed general permit must submit a Notice of Intent(NOI) to be covered and obtain a
Certificate of Coverage under the renewed general permit [15A NCAC 02H .0127(e)].
H-3. Planned Changes
The permittee shall give notice to the Director as soon as possible of any planned changes at
the permitted facility which could significantly alter the nature or quantity of pollutants
discharged [40 CFR 122.41(1)].This notification requirement includes pollutants which are
not specifically listed in the General Permit or subject to notification requirements under 40
CFR Part 122.42 (a).
H-4. Transfers
This General Permit is not transferable to any person without prior written notice to and
approval from the Director in accordance with 40 CFR 122.61.The Director may condition
approval in accordance with NCGS 143-215.1,in particular NCGS 143-215.1(b)(4)b.2.,and
may require modification or revocation and reissuance of the Certificate of Coverage, or a
minor modification,to identify the new permittee and incorporate such other requirements
as may be necessary under the CWA [40 CFR 122.41(l)(3), 122.61] or state statute.The
permittee is required to notify DEMLR in writing in the event the permitted facility is sold
or closed.
H-5. When an Individual Permit May be Required
The Director may require any owner/operator authorized to discharge under a Certificate
of Coverage issued pursuant to this General Permit to apply for and obtain an individual
permit or an alternative general permit.Any interested person may petition the Director to
take action under this paragraph. Cases where an individual permit may be required
include,but are not limited to,the following:
(a) The discharger is a significant contributor of pollutants;
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Permit No.NCG050000
(b) Conditions at the permitted site change,altering the constituents and/or
characteristics of the discharge such that the discharge no longer qualifies for a
general permit;
(c) The discharge violates the terms or conditions of this General Permit;
(d) A change has occurred in the availability of demonstrated technology or
practices for the control or abatement of pollutants applicable to the point
source;
(e) Effluent limitations are promulgated for the point sources covered by this General Permit;
(f) A water quality management plan containing requirements applicable to such point
sources is approved after the issuance of this General Permit;
(g) The Director determines at his or her own discretion that an individual permit is required.
H-6. When an Individual Permit May be Requested
Any permittee operating under this General Permit may request to be excluded from the
coverage of this General Permit by applying for an individual permit.When an individual
permit is issued to an owner/operator the applicability of this General Permit is
automatically terminated on the effective date of the individual permit.
H-7. General Permit Modification, Revocation and Reissuance,or Termination
The issuance of this General Permit does not prohibit the Permit Issuing Authority from
reopening and modifying the General Permit, revoking and reissuing the General Permit, or
terminating the General Permit as allowed by the laws, rules,and regulations contained in
Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code,Subchapter 2H .0100; and North Carolina General Statute 143-215.1 et
al. After public notice and opportunity for a hearing,the General Permit may be terminated
for cause.The filing of a request for a General Permit modification,revocation and
reissuance, or termination does not stay any General Permit condition.The Certificate of
Coverage shall expire when the General Permit is terminated.
H-8. Certificate of Coverage Actions
Coverage under the General Permit may be modified,revoked and reissued,or terminated
for cause.The notification of planned changes or anticipated noncompliance does not stay
any General Permit condition [40 CFR 122.41(f)].
H-9. Requirement to Report Incorrect Information
Where the permittee becomes aware that it failed to submit any relevant facts in a Notice of
Intent to be covered under this General Permit, or submitted incorrect information in that
Notice of Intent application or in any report to the Director, it shall promptly submit such
facts or information [40 CFR 122.41(1)(8)].
H-10. Waivers from Electronic Reporting
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to
the facility being physically located in an area where less than 10 percent of the households
have broadband access,then a temporary waiver from the NPDES electronic reporting
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Permit No.NCG050000
requirements may be granted and discharge monitoring data may be submitted on paper
DNIR forms or alternative forms approved by the Director. See the following paragraph for
information on how to request a waiver from electronic reporting.
The permittee may seek a temporary electronic reporting waiver from DEMLR. To obtain an
electronic reporting waiver,a permittee must first submit an electronic reporting waiver
request to DEMLR. Requests for temporary electronic reporting waivers must be submitted
in writing to DEMLR for written approval at least sixty(60) days prior to the date the facility
would be required under this permit to begin submitting monitoring data and reports. The
duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such
time,monitoring data and reports shall be submitted electronically to DEMLR unless the
permittee re-applies for and is granted a new temporary electronic reporting waiver by
DEMLR. Approved electronic reporting waivers are not transferrable. Only permittees with
an approved reporting waiver request may submit monitoring data and reports on paper to
DEMLR for the period that the approved reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are
found on the following web page: https://deq.nc.gov/about/divisionslwater-
resources/edmr
H-11. Annual Fee Requirements
The permittee must pay the annual fee within 30 (thirty) days after being billed by DEMLR.
Failure to pay the fee in timely manner in accordance with 15A NCAC 21-1 .0105(b)(2) may
cause DEMLR to initiate action to revoke coverage under the General Permit.
H-12. Flow Measurements
Where required,appropriate flow measurement devices and methods consistent with
accepted scientific practices shall be selected and used to ensure the accuracy and reliability
of measurements of the volume of monitored discharges.
H-13. Test Procedures
Test procedures for the analysis of pollutants shall conform to the EMC regulations
published pursuant to NCGS 143-215.63 et. seq,the Water and Air Quality Reporting Acts,
and to regulations published pursuant to Section 304(g), 33 USC 1314,of the Federal Water
Pollution Control Act,as Amended,and Regulation 40 CFR 136.
To meet the intent of the monitoring required by this General Permit,all test procedures
must produce minimum detection and reporting levels and all data generated must be
reported down to the minimum detection or lower reporting level of the procedure. If no
approved methods are determined capable of achieving minimum detection and reporting
levels below the General Permit discharge requirements,then the most sensitive (method
with the lowest possible detection and reporting level) approved method must be used.
H-14. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308
of the Federal Act, 33 USC 1318,all reports prepared in accordance with the terms shall be
available for public inspection at the offices of DEMLR. As required by the Act,analytical
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Permit No.NCG050000
data shall not be considered confidential. Knowingly making any false statement on any
such report may result in the imposition of criminal penalties as provided for in NCGS 143-
215.613 or in Section 309 of the Federal Clean Water Act.
H-15. Action Plan Approval and Submittal
Action Plan approval or disapproval shall be issued by DEMLR's Regional Office based on
the reviewers best professional judgement.Approval may be contingent upon a site
inspection and evaluation of the feasibility of the proposed action steps.
Once notified of plan approval,the permittee shall immediately implement and document
all actions taken as part of the approved action plan.
If the permittee is notified that the submitted Action Plan has been disapproved,a revised
action plan shall be submitted to the regional office no later than 30 days of being notified of
plan disapproval. Plan disapproval may be communicated through mail,phone,or
electronically. If implementation of an approved Action Plan does not result in adequate
improvement of monitoring results of the proceeding 12-month period,a revised Action
Plan shall be submitted for review and approval.
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Permit No.NCG050000
PART I: COMPLIANCE AND LIABILITY
I-1. Compliance Schedule
The permittee shall comply with Limitations and Controls specified for stormwater
discharges in accordance with the following schedule:
(a) Existing Facilities already operating but applying for permit coverage for the first
time:The Stormwater Pollution Prevention Plan shall be developed and
implemented within 12 months of the effective date of the Certificate of Coverage
and updated thereafter on an annual basis. Secondary containment,as specified in
Part B-7 of this General Permit,shall be accomplished within 12 months of the
effective date of the issuance of the Certificate of Coverage.
(b) New Facilities applying for coverage for the first time: The Stormwater Pollution
Prevention Plan shall be developed and implemented prior to the beginning of
discharges from the operation of the industrial activity and be updated thereafter
on an annual basis.Secondary containment,as specified in Part B of this General
Permit shall be accomplished prior to the beginning of discharges from the
operation of the industrial activity.
(c) Existing facilities previously permitted and applying for renewal under this
General Permit:All requirements,conditions,limitations,and controls contained
in this permit(except new SWPPP elements in this permit renewal) shall become
effective immediately upon issuance of the Certificate of Coverage. New elements
of the Stormwater Pollution Prevention Plan for this permit renewal shall be
developed and implemented within 6 months of the effective date of this General
Permit and updated thereafter on an annual basis. Secondary containment,as
specified in Part B of this General Permit shall be accomplished prior to the
beginning of discharges from the operation of the industrial activity.
I-2. Duty to Comply
The permittee must comply with all conditions of this General Permit.Any permit
noncompliance constitutes a violation of the Clean Water Act(CWA) and is grounds for
enforcement action; for permit termination,revocation and reissuance,or modification; or
denial of a permit upon renewal application [40 CFR 122.41].
(a) The permittee shall comply with standards or prohibitions established under section
307(a) of the CWA for toxic pollutants within the time provided in the regulations
that establish these standards or prohibitions,even if the General Permit has not yet
been modified to incorporate the requirement[40 CFR 122.41].
(b) The CWA provides that any person who violates section[s] 301, 302,306,307,308,
318 or 405 of the Act,or any permit condition or limitation implementing any such
sections in a permit issued under section 402,or any requirement imposed in a
pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act,
is subject to a civil penalty not to exceed$37,500 per day for each violation [33 USC
1319(d) and 40 CFR 122.41(a)(2)].
(c) The CWA provides that any person who negligently violates sections 301,302, 306,
307, 308, 318,or 405 of the Act,or any condition or limitation implementing any of
such sections in a permit issued under section 402 of the Act,or any requirement
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Permit No.NCG050000
imposed in a pretreatment program approved under section 402(a)(3) or 402(b)(8)
of the Act,is subject to criminal penalties of$2,500 to $25,000 per day of violation,
or imprisonment of not more than 1 year,or both.In the case of a second or
subsequent conviction for a negligent violation,a person shall be subject to criminal
penalties of not more than$50,000 per day of violation,or by imprisonment of not
more than 2 years, or both [33 USC 1319(c)(1) and 40 CFR 122.41(a)(2)].
(d) Any person who knowingly violates such sections, or such conditions or limitations
is subject to criminal penalties of$5,000 to$50,000 per day of violation,or
imprisonment for not more than 3 years,or both. In the case of a second or
subsequent conviction for a knowing violation,a person shall be subject to criminal
penalties of not more than$100,000 per day of violation,or imprisonment of not
more than 6 years,or both [33 USC 1319(c)(2) and 40 CFR122.41(a)(2)].
(e) Any person who knowingly violates section 301,302,303,306, 307,308,318 or 405
of the Act,or any permit condition or limitation implementing any of such sections
in a permit issued under section 402 of the Act,and who knows at that time that he
thereby places another person in imminent danger of death or serious bodily injury,
shall,upon conviction,be subject to a fine of not more than$250,000 or
imprisonment of not more than 15 years,or both. In the case of a second or
subsequent conviction for a knowing endangerment violation,a person shall be
subject to a fine of not more than$500,000 or by imprisonment of not more than 30
years,or both.An organization,as defined in section 309(c)(3)(B)(iii) of the CWA,
shall,upon conviction of violating the imminent danger provision,be subject to a
fine of not more than$1,000,000 and can be fined up to $2,000,000 for second or
subsequent convictions [40 CFR 122.41(a)(2)].
(f) Under state law,a civil penalty of not more than$25,000 per violation may be
assessed against any person who violates or fails to act in accordance with the terms,
conditions,or requirements of a permit[North Carolina General Statutes § 143-
215.6A].
(g) Any person may be assessed an administrative penalty by the Administrator for
violating section 301,302, 306,307, 308, 318 or 405 of this Act,or any permit
condition or limitation implementing any of such sections in a permit issued under
section 402 of this Act.Administrative penalties for Class I violations are not to
exceed$16,000 per violation,with the maximum amount of any Class I penalty
assessed not to exceed$37,500. Penalties for Class 11 violations are not to exceed
$16,000 per day for each day during which the violation continues,with the
maximum amount of any Class 11 penalty not to exceed$177,500. [33 USC
1319(g)(2) and 40 CFR 122.41(a)(3)].
I-3. Duty to Mitigate
The permittee shall take all reasonable steps to minimize or prevent any discharge in
violation of this General Permit which has a reasonable likelihood of adversely affecting
human health or the environment[40 CFR 122.41(d)].
I-4. Civil and Criminal Liability
Except as provided in Part C-6 of this General Permit regarding bypassing of stormwater
control facilities,nothing in this permit shall be construed to relieve the nermittee from any
Page 27 of 35

Permit No.NCG050000
responsibilities,liabilities,or penalties for noncompliance pursuant to NCGS 143-215.3,143-
215.6,or Section 309 of the Federal Act, 33 USC 1319. Furthermore,the permittee is
responsible for consequential damages,such as fish kills,even though the responsibility for
effective compliance may be temporarily suspended.
I-5. Oil and Hazardous Substance Liability
Nothing in this General Permit shall be construed to preclude the institution of any legal
action or relieve the permittee from any responsibilities,liabilities,or penalties to which the
permittee is or may be subject to under NCGS 143-215.75 et seq.or Section 311 of the
Federal Act. 33 USC 1321.
I-6. Property Rights
The issuance of this General Permit does not convey any property rights in either real or
personal property,or any exclusive privileges,nor does it authorize any injury to private
property or any invasion of personal rights,nor any infringement of Federal,State, or local
laws or regulations [40 CFR 122.41(g)].
I-7. Severability
The provisions of this General Permit are severable,and if any provision of this General
Permit,or the application of any provision of this General Permit to any circumstances,is
held invalid,the application of such provision to other circumstances,and the remainder of
this General Permit,shall not be affected thereby [NCGS 15013-23].
I-8. Duty to Provide Information
The permittee shall furnish to the Permit Issuing Authority,within a reasonable time,any
information which the Permit Issuing Authority may request to determine whether cause
exists for modifying,revoking and reissuing,or terminating the General Permit issued
pursuant to this General Permit or to determine compliance with this General Permit.The
permittee shall also furnish to the Permit Issuing Authority upon request,copies of records
required to be kept by this General Permit [40 CFR 122.41(h)].
1-9. Penalties for Tampering
The Clean Water Act provides that any person who falsifies,tampers with,or knowingly
renders inaccurate,any monitoring device or method required to be maintained under this
General Permit shall,upon conviction,be punished by a fine of not more than$10,000 per
violation,or by imprisonment for not more than two years per violation,or by both. If a
conviction of a person is for a violation committed after a first conviction of such person
under this paragraph,punishment is a fine of not more than$20,000 per day of violation,or
by imprisonment of not more than 4 years,or both [40 CFR 122.41].
I-10. Penalties for Falsification of Reports
The Clean Water Act provides that any person who knowingly makes any false statement,
representation,or certification in any record or other document submitted or required to
be maintained under this General Permit,including monitoring reports or reports of
compliance or noncompliance shall,upon conviction,be punished by a fine of not more than
$10,000 per violation,or by imprisonment for not more than two years per violation,or by
Page 28 of 35

Permit No.NCG050000
both [40 CFR 122.41].
I-11. Onshore or Offshore Construction
This General Permit does not authorize or approve the construction of any onshore or
offshore physical structures or facilities or the undertaking of any work in any navigable
waters.
I-12. Duty to Reapply
Permittees covered by this General Permit need not submit a new Notice of Intent(NOI) nor
renewal request unless so directed by DEMLR. If DEMLR chooses not to renew this General
Permit,the permittee will be notified to submit an application for an individual permit [15A
NCAC 02H .0127(e)].
I-13. Inspection and Entry
The permittee shall allow the Director, or an authorized representative (including an
authorized contractor acting as a representative of the Director), or in the case of a facility
which discharges through a municipal separate storm sewer system,an authorized
representative of a municipal operator or the separate storm sewer system receiving the
discharge,upon the presentation of credentials and other documents as may be required by
law,to:
(a) Enter upon the permittee's premises where a regulated facility or activity is located
or conducted, or where records must be kept under the conditions of this General
Permit;
(b) Have access to and copy,at reasonable times,any records that must be kept under
the conditions of this General Permit;
(c) Inspect at reasonable times any facilities,equipment(including monitoring and
control equipment),practices,or operations regulated or required under this
General Permit; and
(d) Sample or monitor at reasonable times,for the purposes of assuring permit
compliance or as otherwise authorized by the Clean Water Act,any substances or
parameters at any location [40 CFR 122.41(i)].
I-14. Need to Halt or Reduce Not a Defense
It shall not be a defense for a permittee in an enforcement action that it would have been
necessary to halt or reduce the permitted activity in order to maintain compliance with the
condition of this General Permit [40 CFR 122.41(c)].
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Permit No.NCG050000
PART J: DEFINITIONS
Additional definitions for the NPDES Program may be found in federal rule at 40 CFR Part 122.2
Act
See Clean Water Act.
Adverse Weather
Weather conditions are those that are dangerous or create inaccessibility for personnel,
such as local flooding,high winds,or electrical storms,or situations that otherwise make
sampling impractical. When adverse weather conditions prevent the collection of samples
during the sample period,the permittee must take a substitute sample or perform a visual
assessment during the next qualifying storm event.Documentation of an adverse event
(with date,time, and written narrative) and the rationale must be included with your
SWPPP records.Adverse weather does not exempt the permittee from having to file a
monitoring report in accordance with the sampling schedule.Adverse events and failures to
monitor must also be explained and reported on the relevant DMR.
Allowable Non-Stormwater Discharges
This General Permit regulates stormwater discharges.Non-stormwater discharges which
shall be allowed in the stormwater conveyance system include:
(a) All other discharges that are authorized by a non-stormwater NPDES permit.
(b) Uncontaminated groundwater,foundation drains,air-conditioner condensate without
added chemicals, springs,discharges of uncontaminated potable water,waterline and fire
hydrant flushings,water from footing drains,irrigation waters, flows from riparian
habitats and wetlands.
(c) Discharges resulting from fire-fighting or, or emergency shower oreye wash as a result of
use in the event of an emergency.
Best Management Practices(BMPs)
Measures or practices used to reduce the amount of pollution entering surface waters.
BMPs may take the form of a process,activity,or physical structure. More information on
BMPs can be found at: https://www.epa.gov/npdes/national-menu-best-management-
practices-bmps-stormwater#edu.
Bulk Storage for Liquid Materials
Liquid raw materials,in-process liquids and reactants, manufactured products,waste
materials or by-products contained in a single above ground container,tank,or vessel
having a capacity of greater than 660 gallons or contained in multiple above ground
containers,tanks,or vessels having a total combined capacity of greater than 1,320 gallons.
Bypass
The known diversion of stormwater from any portion of a control facility including the
collection system, or the diversion of waste streams from any portion of a treatment facility
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Permit No.NCG050000
including the collection system,which is not a designed or established operating mode for
the facility.
Certificate of Coverage(COC)
The cover sheet which accompanies a general permit upon issuance and lists the facility
name,location,receiving stream,river basin,effective date of coverage under the general
permit and is signed by the Director.
Clean Water Act
The Federal Water Pollution Control Act,also known as the Clean Water Act(CWA), as
amended, 33 USC 1251,et.seq.
Division
The Division of Energy,Mineral,and Land Resources, Department of Environmental Quality
(DEQ),formerly the Department of Environment and Natural Resources.
Director
The Director of the Division of Energy, Mineral, and Land Resources,the permit issuing
authority.
EMC
The North Carolina Environmental Management Commission.
Grab Sample
An individual sample collected instantaneously.Grab samples that will be analyzed
(analytically or qualitatively) should be taken within the first 30 minutes of discharge.
Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the Clean
Water Act.
High Quality Waters(HQW)
Supplemental classification intended to protect waters which are rated excellent based on
biological and physical/chemical characteristics through Division monitoring or special studies, or
HQW by definition:
1.WS-I,
2.WS-I1,
3. SA(commercial shellfish),
4. ORW.
5. Primary Nursery Areas and other functional nursery areas designated by Marine Fisheries
Commission,or
6.Waters for which DWQ has received a petition for reclassification to either WS-1 or WS-II.
(15A NCAC 0213 .0200)
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Permit No.NCG050000
Impaired Water
A water that has one or more parameters (biological and/or chemical) that exceed water
quality standards.
Measurable Storm Event
A storm event that results in an actual discharge from the permitted site outfall.The
previous measurable storm event must have been at least 72 hours prior. The 72-hour
storm interval may not apply if the permittee is able to document that a shorter interval is
representative for local storm events during the sampling period, and obtains approval
from DEMLR's Regional Office.Two copies of this information and a written request letter
shall be sent to DEMLR's Regional Office.After authorization by DEMLR's Regional Office,a
written approval letter must be kept on site in the permittee's SWPPP.
Note:If a constant non-stormwater discharge is present at anygiven outfall, the above storm
interval requirement may not apply.
Municipal Separate Storm Sewer System(MS4)
A stormwater collection system within an incorporated area of local self-government such
as a city or town.
No Exposure
A condition of no exposure means that all industrial materials and activities are protected
by a storm resistant shelter or acceptable storage containers to prevent exposure to rain,
snow,snowmelt,or runoff. Industrial materials or activities include,but are not limited to,
material handling equipment or activities,industrial machinery,raw materials,
intermediate products,by-products,final products,or waste products. DEMLR's Regional
Office may grant a No Exposure Exclusion from NPDES stormwater permitting
requirements only if a facility complies with the terms and conditions described in 40 CFR
§122.26(g).
Notice of In tent(NOI)
The state application form which,when submitted to DEMLR,officially indicates the
facility's notice of intent to seek coverage under a general permit.
Outstanding Resource Water(ORW)
Supplemental classification intended to protect unique and special waters having excellent water
quality and being of exceptional state or national, ecological or recreational significance. To
qualify,waters must be rated Excellent by DWQ,and have one of the following outstanding
resource values:
(a) Outstanding fish habitat and fisheries,
(b) Unusually high level of water based recreation or potential for such kind of recreation,
(c) Some special designation such as N.C. Scenic/Natural River,or National Wildlife Refuge,
(d) Important component of state or national park or forest, or
(e) Special ecological or scientific significance (rare or endangered species habitat,research or
educational areas).
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Permit No.NCG050000
All ORWs are HQW by supplemental classification.
(15A NCAC 0213 .0200)
Permit Issuing Authority
The Director of the Division of Energy,Mineral,and Land Resources (see"Director" above).
Permittee
The owner or operator issued a Certificate of Coverage pursuant to this General Permit.
Point Source Discharge of Stormwater
Any discernible,confined and discrete conveyance including,but not specifically limited to,
any pipe, ditch,channel,conduit,well,or discrete fissure from which stormwater is or may
be discharged to waters of the State.
Primary Nursery Area(PNA)
Tidal saltwaters which provide essential habitat for the early development of commercially
important fish and shellfish and are so designated by the Marine Fisheries Commission.
(15A NCAC 0213 .0200)
Representative Outfall Status(ROS)
When it is established that the discharge of stormwater runoff from a single outfall is
representative of the discharges at multiple outfalls, DEMLR's Regional Office may grant
representative outfall status. ROS allows the permiteee to perform analytical monitoring at a
reduced number ofoutfalls.
Secondary Containment
Spill containment for the contents of the single largest tank within the containment
structure plus sufficient freeboard to contain the 25-year. 24-hour storm event.
Section 313 Water Priority Chemical
A chemical or chemical category which:
(a) Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund
Amendments and Reauthorization Act(SARA) of 1986,also titled the Emergency Planning
and Community Right-to-Know Act(EPCRA) of 1986;
(b) Is present at or above threshold levels at a facility subject to SARA title 111,Section 313
reporting requirements; and
(c) Meets at least one of the following criteria:
• Is listed in appendix D of 40 CFR Part 122 on Table II (organic priority pollutants),Table
III (certain metals,cyanides,and phenols) or Table IV(certain toxic pollutants and
hazardous substances);
• Is listed as a hazardous substance pursuant to section 311(b)(2)(A) of the CWA at 40
CFR 116.4; or
• Is a pollutant for which EPA has published acute or chronic water quality criteria.
Severe Property Damage
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Permit No.NCG050000
Substantial physical damage to property, damage to the control facilities which causes them
to become inoperable,or substantial and permanent loss of natural resources which can
reasonably be expected to occur in the absence of a bypass. Severe property damage does
not mean economic loss caused by delays in production.
Significant Materials
Includes,but is not limited to: raw materials; fuels; materials such as solvents, detergents,
and plastic pellets; finished materials such as metallic products; raw materials used in food
processing or production; hazardous substances designated under section 101(14) of
CERCLA; any chemical the facility is required to report pursuant to section 313 of Title III of
SARA; fertilizers; pesticides; and waste products such as ashes,slag,and sludge that have
the potential to be released with stormwater discharges.
Significant Spills
Includes,but is not limited to: releases of oil or hazardous substances in excess of
reportable quantities under section 311 of the Clean Water Act(Ref: 40 CFR 110.3 and 40
CFR 117.3) or section 102 of CERCLA(Ref: 40 CFR 302.4).
Stormwater Control Measure(SCM)
A permanent structural device that is designed,constructed, and maintained to remove
pollutants from stormwater runoff by promoting settling or filtration; or to mimic the
natural hydrologic cycle by promoting infiltration,evapo-transpiration,post-filtration
discharge,reuse of stormwater, or a combination thereof.
Stormwater Discharge Outfall(SDO)
The point of departure of stormwater from a discernible, confined, or discrete conveyance,
including but not limited to,storm sewer pipes,drainage ditches,channels,spillways,or
channelized collection areas,from which stormwater flows directly or indirectly into waters
of the State.
Stormwater Runoff
The flow of water which results from precipitation and which occurs immediately following
rainfall or as a result of snowmelt.
Storm water Associated with Industrial Activity
The discharge from any point source which is used for collecting and conveying Stormwater
and which is directly related to manufacturing,processing, or raw material storage areas at
an industrial site. Facilities considered to be engaged in "industrial activities"include those
activities defined in 40 CFR 122.26(b)(14).The term does not include discharges from
facilities or activities excluded from the NPDES program.
Stormwater Pollution Prevention Plan (SWPPP)
A comprehensive site-specific plan which details measures and practices to reduce
Stormwater pollution and is based on an evaluation of the pollution potential of the site.
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Permit No.NCG050000
Total Maximum Daily Load(TMDL)
TMDLs are written plans for attaining and maintaining water quality standards,in all
seasons,for a specific water body and pollutant.A list of approved TMDLs for the state of
North Carolina can be found at https://deq.nc.gov/about/divisions/water-
resources/planning/modeling-assessment/tmdls.
Toxic Pollutant
Any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act.
Trout(waters)
Supplemental classification intended to protect freshwaters for natural trout propagation and
survival of stocked trout on a year round basis.This is not the same as the N.C.Wildlife Resources
Commission's Designated Public Mountain Trout Waters (15A NCAC 0213.0200).
Upset
An exceptional incident in which there is unintentional and temporary noncompliance with
technology-based permit effluent limitations because of factors beyond the reasonable control of
the permittee. An upset does not include noncompliance to the extent caused by operational error,
improperly designed treatment or control facilities,inadequate treatment or control facilities,lack
of preventive maintenance,or careless or improper operation.
Vehicle Maintenance Activity
Vehicle rehabilitation,mechanical repairs,washing,sanding,painting,fueling,lubrication,
vehicle cleaning operations, or airport deicing operations.All cleaning operations shall be
performed,where feasible,indoors where there is a connection to the sanitary sewer
system or where wash water can be collected and properly treated,recycled,or otherwise
disposed of.
Visible Sedimentation
Solid particulate matter,both mineral and organic,that has been or is being transported by
water,air,gravity,or ice from its site of origin which can be seen with the unaided eye.
10 year,24-hour Storm Event
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the
average,once in 10 years.
25 year,24-hour Storm Event
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the
average,once in 25 years.
Page 35 of 35

APPENDIX B
NON-STORMWATER EVALUATION REPORT AND CERTIFICATION

NON-STORMWATER EVALUATION REPORT AND CERTIFICATION
The stormwater drainage system in this SWPPP must be tested or evaluated for the presence of'non-
stormwater discharges annually. Results of these tests/evaluations are as follows:
Outfall 001
Date of Inspection: Time:
Visual Inspection by(printed name): Signature:
Observations/Results:
Are there any non-storm water discharges? ❑ Yes ❑ No
Uncontaminated groundwater? ❑ Yes ❑ No
Foundation drains? ❑ Yes ❑ No
HVAC condensate without added chemicals? ❑ Yes ❑ No
Springs? ❑ Yes ❑ No
Uncontaminated potable water? ❑ Yes ❑ No
Waterline and fire hydrant flushings? ❑ Yes ❑ No
Water from footing drains? ❑ Yes ❑ No
Irrigation waters? ❑ Yes ❑ No
Flows from riparian habitats and wetlands? ❑ Yes ❑ No
Fire-fighting? ❑ Yes ❑ No
Emergency shower or eye wash? ❑ Yes ❑ No
Is the discharge authorized under this permit? ❑ Yes ❑ No
Are significant structural changes required to eliminate the discharge? ❑ Yes ❑ No
Notes:
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. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for
knowing violations.
(Responsible Corporate Officer Signature) (Date)
(Printed Name) (Title)

NON-STORMWATER EVALUATION REPORT AND CERTIFICATION
The stormwater drainage system in this SWPPP must be tested or evaluated for the presence of'non-
stormwater discharges annually. Results of these tests/evaluations are as follows:
Outfall 002
Date of Inspection: Time:
Visual Inspection by(printed name): Signature:
Observations/Results:
Are there any non-storm water discharges? ❑ Yes ❑ No
Uncontaminated groundwater? ❑ Yes ❑ No
Foundation drains? ❑ Yes ❑ No
HVAC condensate without added chemicals? ❑ Yes ❑ No
Springs? ❑ Yes ❑ No
Uncontaminated potable water? ❑ Yes ❑ No
Waterline and fire hydrant flushings? ❑ Yes ❑ No
Water from footing drains? ❑ Yes ❑ No
Irrigation waters? ❑ Yes ❑ No
Flows from riparian habitats and wetlands? ❑ Yes ❑ No
Fire-fighting? ❑ Yes ❑ No
Emergency shower or eye wash? ❑ Yes ❑ No
Is the discharge authorized under this permit? ❑ Yes ❑ No
Are significant structural changes required to eliminate the discharge? ❑ Yes ❑ No
Notes:
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. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for
knowing violations.
(Responsible Corporate Officer Signature) (Date)
(Printed Name) (Title)

APPENDIX C
SPRP RESPONSIBLE PERSONS
SPILL REPORT FORM
AND
LIST OF SIGNIFICANT SPILLS

APPENDIX C
SPILL PREVENTION AND RESPONSE PROCEDURES (SPRP)
RESPONSIBLE PERSONS
The EHS Engineer is designated to act as the Pollution Prevention Team (PPT) leader of the
Stormwater Pollution Prevention Plan (SWPPP) and is the primary responsible party for
implementing the Spill Prevention and Response Procedures (SPRP). Additional personnel have
been delegated appropriate authority to commit the necessary resources to implement the Plan and
can assume these responsibilities in absence of the PPT leader, such that a responsible party will
be onsite at all times during facility operations that have the potential to contaminate stormwater
runoff through spills or exposure to materials associated with facility operations. These
responsible parties have reviewed this Plan and indicate acceptance of these responsibilities by
signature below.
I hereby indicate that I have reviewed the SPRP in the SWPPP and understand my responsibility
in preventing and responding to spills in accordance with the requirements and procedures
described in the SPRP.
Responsible Persons
Name/Emergency Title/Role/Plant/Shift Signature& Date
Phone Number/E-Mail
Address
Ariel Smith/ EHS Engineer/PPT
336-660-9616/ Leader/Primary Facility Signature
ariel.smithklydech.com Response Coordinator/Plants
1,2&3/Shift 1
Date
Conrad Moss/ EHS Manager/
336-468-5284/ Alternate Facility Response Signature
cmoss(a,lydech.com Coordinator/Plants
1,2&3/Shift 1
Date
Nelson Mullis/ EHS Coordinator/
336-469-4138/ Alternate Facility Response Signature
nmullisklydech.com Coordinator/Plants
1,2&3/Shift 1
Date
Randy Allred/ EHS Coordinator/
743-433-0267/ Alternate Facility Response Signature
rallred(a,lydech.com Coordinator/Plants
1,2&3/Shift 1
Date
Nicholas O'Donnell/ TPM Technician/
Signature
336-244-6283/
Alternate Facility Response
nodonnell(c-r�,lydech.com Coordinator/Plant 1/Shift 1
Date

Responsible Persons
Name/Emergency Title/Role/Plant/Shift Signature&Date
Phone Number/E-Mail
Address
William Faircloth/336- Controls Technician/
Signature
452-9760/
Alternate Facility Response
wfaircloth&lydech.com Coordinator/Plant 1/Shift 3
Date
David Settle/ Controls Technician/
Signature
336-618-2345/
Alternate Facility Response
dsettle(c-r�,lydech.com Coordinator/Plant 2/Shift 2
Date
Dillon Adams/ TPM Technician/
336-692-2380/ Alternate Facility Response Signature
dadams674klydech.com Coordinator/Plant 2/Shift 3
Date
Daniel Dupree/ Facilities Technician/
Signature
336-467-9061/
Alternate Facility Response
ddupree(klydech.com Coordinator/Plant 3/Shift 1
Date
Robert Meyerhofer/ TPM Technician/
Signature
336-452-4500/
Alternate Facility Response
rmeyerhoferklydech.com Coordinator/Plant 2/Shift 2
Date
Davey Johnson/ TPM Technician/
Signaturc
336-452-1036/
Alternate Facility Response
diohnson&lydech.com Coordinator/Plant 3/Shift 1
Date
Signaturc
Date
Signature
Date

SPILL REPORT FORM
RECORD OF PETROLEUM OR CHEMICAL PRODUCT DISCHARGE,
SPILLAGE OR RELEASE
When did the incident occur? Date Time
Where did the incident occur?
How did the incident occur?
Under whose control was the chemical or petroleum product at the time of the incident?
Name: Title:
Phone #:
Owner or Operator of the property onto which the spill occurred?
Company Name:
Address:
Phone #
Who and when was the incident verbally reported? (Check multiple if needed)
❑ EHS / Management
Date Time
❑Emergency Spill Cleanup Contractor
Date Time
❑Local
Date Time
❑Federal/State
Date Time
Who reported the incident and who were they representing?
Name: Title:
Address:
Phone #:

SPILL REPORT FORM CONTINUED
Chemicals or petroleum products released,spilled,or discharged? Give an exact description of materials involved,
including chemical names, percent concentrations,trade names,etc. If the chemicals are extremely Hazardous
Substances or CERCLA hazardous substances,they must be identified and include the reportable quantity(RQ).
Please attach a Material Safety Data Sheet(MSDS)for each chemical involved. Quantities of chemicals released,
spilled or discharged to each environmental medium (air,surface water, soil, groundwater)?
Chemical or Petroleum Product Name:
Quantity Released:
Circle medium(s): Air Surface Water Sewer Soil Groundwater
Description of incident:
Any of the chemical travel beyond the property line? (Note: groundwater is beyond the
property line.)
Actions taken to respond to release or spill?
Attach additional sheets if necessary
Any injuries as a result of the incident?
Name:
Address:
Phone #
Injury Sustained:
Any anticipated health risks, acute or chronic, associated with the release of this
chemical or medical advice that should be communicated?
Was incident completely cleaned up by the time this report was submitted? If not, what
anticipated remedial actions are pending?
I hereby affirm that the foregoing statement is true to the best of my knowledge.
Signature Title Date
Print Name Telephone Number

LIST OF SIGNIFICANT SPILLS
Location, Date, and Time of Material Estimated Media Affected Corrective Action
Spill Released Quantity of
Release
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:

APPENDIX D
SOLVENT MANAGEMENT PLAN CERTIFICATION

SOLVENT MANAGEMENT PLAN CERTIFICATION
Bulk liquid organic solvents not used or stored at the Lydech—Yadkinville Facility in Yadkinville,
North Carolina.
"I certify, under penalty of law, that this attachment was 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 fines and imprisonment for knowing violations."
Signature:
Name:
Title:
Date:

APPENDIX E
QUARTERLY FACILITY INSPECTION CHECKLIST

QUARTERLY FACILITY INSPECTION CHECKLIST
Inspector: Date:
Signature:
BMP Status Actions Taken/Corrective
(Yes/No/NA) Action Needed
Good Housekeeping
1. Floor and ground surfaces are clean and dry?
2. Garbage and wastes are picked up regularly?
3. Containers,drums, and bags are stored away from
traffic?
4. Containers are stacked according to manufacturers'
directions?
5. Hazardous materials are clearly marked?
6. Driveways/access roads are free of debris?
7. Dumpster areas are well maintained without loose
debris or staining?
Preventive Maintenance
1. Are Preventative Maintenance inspections and
associated recordkeeping(PMs)being completed in
accordance with manufacturer recommendations?
2. Is exterior equipment free of visual indications of
leaks,wear, or damage that could impact stormwater
quality?
Spill Prevention and Response
1. Residues from any previous spills have been
properly cleaned up?
2. All spill response equipment cleaned or replaced?
3. Spill response/cleanup materials inventory adequate
and accessible?
4. Tanks/drums/totes in good condition and within
adequate secondary containment?
Sediment and Erosion Control
1. Ground cover in good condition?
2. Gravel filters and rip rap in good condition?
Runoff Management
1. Conveyances in good condition?
2. Debris cleared from conveyances?
3. Diversionary structures in good condition?
Outfalls
1. Out falIs free of debris and not blocked?
2. Outfall areas not eroded and in good condition?

APPENDIX F
RECORD OF TRAINING

RECORD OF TRAINING
SWPPP
Location:
Date:
Conducted By:
The following items were discussed at the meeting (check all that apply):
❑ SWPPP ❑ Solvent Management
❑ General Stormwater Awareness ❑ Used Battery Management
❑ Spill Response Training ❑ Other(describe)
❑ Used Oil Management
Employees Received Training:
Printed Name Signature
Training records must be kept for at least five (5) years.

APPENDIX G
SWPPP ANNUAL REVIEW AND UPDATE FORMS
PLAN REVIEW,UPDATE,AND AMENDMENT RECERTIFICATION FORM
RECORD OF SWPPP AMENDMENTS
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)/SWPPP ANNUAL
UPDATE DATA REVIEW FORM

PLAN REVIEW, UPDATE,AND AMENDMENT RECERTIFICATION FORM
In accordance with requirements of the NPDES General Permit No. NCG050000, this SWPPP
shall be amended whenever there is a change in design, construction, operation, site drainage,
maintenance, or configuration which has a significant effect on the potential for the discharge of
pollutants to surface waters. All aspects of this SWPPP shall be reviewed and updated on an annual
basis. The annual update shall include:
(a) An updated list of significant spills or leaks of pollutants for the previous three(3)years,or
the notation that reportable spills have not occurred(Section 8.4 and Appendix C);
(b) A written recertification that the stormwater outfalls have been evaluated for the presence of
non-stormwater discharges (Section 5.0 and Appendix B);
(c) A documented re-evaluation of the effectiveness of the Best Management Practices (BMPs)
listed in the BMP Summary(Section 6.0, Table 6-1);
(d) An annually updated and quantified inventory of solvents present onsite during the
previous three years if significant changes (Section 9.0 and Appendix D);
(e) A statement that annual training requirements were met in the past year(Section 11.0 and
Appendix F); and
(f) A review and comparison of sample analytical data to benchmark values over the past year,
including a discussion about Tiered Response status (DEQ Annual Summary Data
Monitoring Report(DMR)/SWPPP Annual Update Data Review Form).
The annual update shall be documented with the printed name,date,and signature of the individual
performing the review, as well as a description of the changes necessary to update the SWPPP,
and kept with the Plan.
This amendment/review is being conducted on the date of
I certify that I have verified the above update items (a)through(f), the BMPs listed in Section
6.0 are deemed reasonably effective, and annual training requirements were met in the past year.
"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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature:
Name:
Title:
Date:

RECORD OF SWPPP AMENDMENTS
Revision Reviewer Date Amendments
A J. Concepcion 12/17/2013 Initial Issue
Initial Sampling for Outfall 001 and Outfall 002
B P. Rahn 2/11/2014 conducted. Waters Edge Environmental
collected the samples.
Facility receives Certification of Coverage
C P. Rahn 2/28/2014 (NCG05048)which is under General Permit
NCG050000.
D E. Evans 11/24/2015 Reviewed spill plan,updated section 4& contact
information.
E P. Rahn 8/7/2017 Some personnel and telephone number
modifications.
F B. Smith 10/22/2018 Annual Review.
G B. Smith 9/16/2019 Annual Review/Updates.
Reformatted and updated to reflect June 1,2023
H M. Cramer May 2024 General Permit revision and current contact
information.

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SWPPP Annual Update DATA REVIEW FORM
Calendar Year
Individual NPDES Permit No. NCS❑❑❑❑❑❑ or
Certificate of Coverage (COC) No. NCG❑❑❑❑❑❑8
This monitoring report summary of the calendar year should be kept on file on-site with the facility SPPP.
Facility Name: Lydech Thermal Acoustical Inc.
County: Yadkin
Phone Number: ( Total no. of SDOs monitored
Outfall No. 001
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
Parameter, (units)
Total TSS pH COD Non-Polar Oil
Rainfall, (mg/L) (Standard Units) (mg/L) & Grease
inches (mg/L)
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SWU-264 - Generic Annual DMR
Last revised 610112018

Additional Outfall Attachment
Outfall No. 002
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
Parameter, (units)
Total TSS pH COD Non-Polar Oil
Rainfall, (mg/L) (Standard Units) (mg/L) & Grease
inches (mg/L)
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SWU-264 - Generic Annual DMR
Last revised 610112018

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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature
Date
For questions, contact your local Regional Office:
DEMLR Regional Office Contact Information:
Win
4 �
r in
le L
1
F 'Ile
4Yil ngrnn
ASHEVILLE REGIONAL OFFICE FAYETTEVILLE REGIONAL OFFICE MOORESVILLE REGIONAL OFFICE
2090 US Highway 70 225 Green Street 610 East Center Avenue/Suite 301
Swannanoa, NC 28778 Systel Building Suite 714 Mooresville,NC 28115
[phone] Fayetteville,NC 28301-5043 [phone]
[phone]
RALEIGH REGIONAL OFFICE WASHINGTON REGIONAL OFFICE WILMINGTON REGIONAL OFFICE
3800 Barrett Drive 943 Washington Square Mall 127 Cardinal Drive Extension
Raleigh,NC 27609 Washington, NC 27889 Wilmington,NC 28405-2845
[phone] [phone] [phone]
WINSTON-SALEM REGIONAL OFFICE CENTRAL OFFICE
450 Hanes Mill Rd, Suite 300 1617 Mail Service Center
Winston-Salem,NC 27105 Raleigh,NC 27699-1617
[phone] [phone]
SWU-264 - Generic Annual DMR
Last revised 610112018

APPENDIX H
STORMWATER DISCHARGE OUTFALL (SDO)-QUALITATIVE MONITORING
REPORTS

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit https:Hdeq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: NCG050000 or Certificate of Coverage No.: NCG050418
Facility Name: Lvdech Thermal Acoustical Inc.
County: Yadkin Phone No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation (inches):
All permits require qualitative monitoring to be performed during a measurable storm event."
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature,I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 001 Structure(pipe, ditch,etc.): Concrete Culvert
Receiving Stream: Town Branch
Describe the industrial activities that occur within the outfall drainage area: Front parking lot ground
transformer,wood pallets,plastic bins,polyethylene totes, scrap metal roll-off,wood scrap and sanitary
off, forklift loading and unloading.
Page 1 of 2
SWU-242,Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint
(light,medium, dark)as descriptors:
3. Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil,weak
chlorine odor,etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes Q No.
8. Is there an oil sheen in the stormwater discharge? QYes 0 No.
9. Is there evidence of erosion or deposition at the outfal1? o Yes o No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity,high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit https:Hdeq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: NCG050000 or Certificate of Coverage No.: NCG050418
Facility Name: Lvdech Thermal Acoustical Inc.
County: Yadkin Phone No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation (inches):
All permits require qualitative monitoring to be performed during a measurable storm event."
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period, and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature,I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 002 Structure(pipe, ditch,etc.): Concrete Ditch
Receiving Stream: Town Branch
Describe the industrial activities that occur within the outfall drainage area: Roof drains on the eastern
portions of Buildings A&B, overland sheet flow on the loading dock and parking area north of Building_B
into a drainage swale ditch that leaves the property at Outfall 002.
Page 1 of 2
SWU-242,Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint
(light,medium, dark)as descriptors:
3. Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil,weak
chlorine odor,etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes Q No.
8. Is there an oil sheen in the stormwater discharge? QYes 0 No.
9. Is there evidence of erosion or deposition at the outfal1? o Yes o No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity,high solids, and/or the presence of foam,oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report Supplement SWU-242A:
Guidance for Rating Stormwater Discharge
This supplement is intended only as a guide for rating visually observed parameters on a scale of
1-5. The inspector should use best professional judgment when characterizing the quality of
stormwater discharge. Also, the pictures included here do not necessarily show stormwater
discharges but serve to illustrate the characteristics described.
Clarity
(1 is clear, and 5 is very opaque or cloudy) �.
tom.
i
l
1 3 5
Floating Solids
(1 is no solids, and 5 is the surface covered
with floating solids or significant trash/debris)
I�
1 3 5
Page 1 of 10
SWU-242A-061808

Suspended Solids
(1 is no solids, and 5 is extremely muddy or clouded with other particles)
Vy
V
1 3 5
Tannic Water
Water naturally high in tannins in the eastern part of North Carolina may still have low amounts
of suspended solids and high clarity but not appear"clear"because of coloration. The examples
below will help rate discharges that must be observed in tannic waters.
Clear tannic water may look like tea or coffee,but waters that look more "milky" or like
"chocolate milk"have less clarity and higher suspended solids.
Suspended Solids/Clarity in waterbodies naturally high in tannins
OW
a
1 / 1 3 / 3 5 / 5
Page 2 of 10
SV,U-242A-061808

Example 1
4
t
'W
1. Outfall Description: Example 1 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: light brown
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor,etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 O 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 O 4 5
Page 3 of 10
SV,U-242A-061808

Example 1 of 4,cont.
Possibly small amount of
7. Is there any foam in the stormwater discharge? Yes No foam near pipe outlet.
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No Deposition of sand to the
right of pipe outlet.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe N/A
Page 4 of 10
SWU-242A-061808

Example 2
_ ` `
1. Outfall Description: Example 2 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Ditch
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: medium gray-green
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5 Note in lower right corner of picture,leaf
shadow is visible on the bottom of outlet.
Clarity decreases beyond outlet.
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 O 3 4 5 Floating solids observed here are mostly
tree debris that fell in after discharge.
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
Solids have settled out near outfall and are
1 O 3 4 5 more"dissolved"out in the water near the
top of the picture(where water appears
more gray). At the outlet,there are not any
swirls,clouds,or suspended particles.
Page 5 of 10
SV,U-242A-061808

Example 2 of 4,cont.
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe Some displacement of gravel and sediment observed at the outfall. Also, lots of solids
that have settled. The water becomes more turbid/cloudy beyond the outfall(i.e.,clarity decreases).
Evidence of excessive solids being carried into receivin water.
This example illustrates how additional information in number 10. can be
important to characterizing stormwater discharge impacts.
Page 6 of 10
SWU-242A-061808

Example 3
1. Outfall Description: Example 3 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: medium brown/tan
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor,etc.): oily smell
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 O 5 Rating based on amount of scum/oil
covering surface,not tree debris.
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 0 4 5
Page 7 of 10
SV,U-242A-061808

Example 3 of 4,cont.
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe Oil and scummy substance floating on top. Dead duck found.
Page 8 of 10
SWU-242A-061808

Example 4
fix.
3. -
w
1. Outfall Description: Example 4 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: clear
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor,etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
O 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
O 2 3 4 5
Page 9 of 10
SWU-242A-061808

Example 4 of 4,cont.
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe N/A
Page 10 of 10
SWU-242A-061808

APPENDIX I
STORMWATER DISCHARGE MONITORING REPORTS (DMR)-ANALYTICAL
MONITORING

NCDEQ Division of Energy, Mineral and Land Resources
Stormwater Discharge Monitoring Report (DMR) Form for NCG050000
Apparel, Printing, Rubber, Etc.
Click here for instructions
Complete,sign,scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report(DMR) Upload form within
30 days of receiving sampling results. Mail the original,signed hard copy of the DMR to the appropriate DEMLR Regional Office.
Certificate of Coverage No. NCG05 050418 Person Collecting Samples:
Facility Name: Lydech Thermal Acoustical Inc. Laboratory Name:
Facility County: Yadkin Laboratory Cert. No.:
Discharge during this period: ❑Yes ❑ No (if no,skip to signature and date)
Has your facility implemented mandatory Tier response actions for any benchmark exceedances?❑Yes ❑ No
If so,which Tier(I, II,or III)?
Part A:Vehicle&Equipment Maintenance Areas—Benchmarks in(Red)
Parameter Parameter Outfall 001 Outfall 002
Code
N/A Receiving Stream Class Class C Class C
N/A Date Sample Collected MM/DD/YYYY
00400 pH in standard units(6.0-9.0 FW,
6.8-8.5 SW)
46529 24-Hour Rainfall in inches
00552 Non-Polar Oil&Grease in mg/L(15)
C0530 TSS in mg/L(100 or 50*)
00340 Chemical Oxygen Demand (COD)in
mg/L(120)
NCOIL New Motor/Hydraulic Oil Usage in
gal/month
Notes(optional):
"I certify by my signature below, 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 fines and imprisonment for
knowing violations."
Signature of Permittee or Delegated Authorized Individual Date

NCDEQ Division of Energy, Mineral and Land Resources
Discharge Monitoring Report (DMR) Instructions
Completing the DMR Form:
1. The total precipitation shall be recorded using data from an on-site rain gauge.
Unattended sites may be eligible for a waiver of the rain gauge requirement if
approved in writing by the applicable DEMLR Regional Office.
2. Sampling results for each parameter shall be compared to the benchmark values for
the appropriate receiving stream classification (listed in parentheses).
3. Monitoring results shall be in numerical format; below detection limit (BDL), non-
detect (ND) or other non-numerical formats are not acceptable. When results are
below detection limits, they must be reported in the format "<XX mg/L," where "XX" is
the numerical detection limit in mg/L. Where fecal coliform results (if applicable)
exceed the dilution upper limit, the result should be reported as ">XX".
4. For sampling periods with no discharge at any single outfall, the DMR report is still
required to be completed and submitted.
5. If the sampled storm event coincides with a known non-stormwater discharge that is
deemed permitted under 15A NCAC 02H .0106, then this shall be noted on the DMR in
the notes section.
6. If any pollutant is sampled more frequently than required by the general permit and at
a sampling location covered under the general permit, then per permitting
requirements, those sampling results must be submitted on a DMR.
Submitting the DMR Form:
Do not send paper DMRs to the Central Files.
1. Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit Data
Monitoring Report (DMR) Upload form within 30 days of receiving sampling results.
2. Mail the original, signed hard copy of the DMR to the appropriate DEMLR Regional Office.

STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
Lydech Thermal Accoustical
Hamptonville Facility
1241 Buck Shoals Road
Hamptonville, North Carolina 27020
El Project ENM0240047.00
Version:
May 2024
The El Group, Inc. 888.372.5859
Environmental, Health and Safety Solutions.' www.eil.com

STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
Lydech Thermal Acoustical
Hamptonville Facility
1241 Buck Shoals Road
Hamptonville, North Carolina 27020
Prepared by:
The El Group, Inc.
2101 Gateway Centre Boulevard, Suite 200
Morrisville, North Carolina 27560
Version:
May 2024
D�' The El Group, Inc. 888.372.5859
Environmental, Health and Safety Solutions.TI www.eil.com

Stormwater Pollution Prevention Plan (SWPPP)
Summary of Inspection, Monitoring, Recordkeeping, and Reporting Requirements
Lydech Thermal Acoustical
Hamptonville Facility
1241 Buck Shoals Road
Hamptonville,North Carolina
Requirement Frequency Relevant
Appendix
Evaluate stormwater outfalls for the Annual—Retain records for minimum Appendix B
presence of non-stormwater discharges. of five(5)years.
Document significant spills/releases Upon occurrence of a significant Appendix C
above reporting thresholds. spill/release.
Update inventory of solvents. Annual—Update list of solvents onsite Appendix D
if list changes.
Visually inspect facility. Quarterly—Visually inspect facility, Appendix E
document,and retain records for
minimum of five(5)years.
SWPPP Employee Training Annual—Retain records for minimum Appendix F
of five(5)years.
SWPPP Review and Update Annual—Review SWPPP annually, Appendix G
update as needed, document, and retain
records of reviews for a minimum of
five(5)years.
Submit online certification of annual
SWPPP reviews and updates once
DEQ develops and implements this
capability.
Qualitative Stormwater Discharge Outfall Quarterly—Visual assessment of Appendix H
(SDO)Monitoring stormwater quality, document, and
(Outfalls 001, 002,003,004, &005) retain records for a minimum of five
(5)years.
Analytical Benchmark Stormwater Quarterly—Grab sampling and Appendix I
Discharge Outfall(SDO)Monitoring analysis for comparison to benchmarks
(Outfalls 001, 002,003,004, &005) starting with Quarter 1 of 2024.
Increase frequency to monthly if
exceed benchmarks up to Tier Two
status.
Submit DMR to DEQ within 30 days
following end of monitoring quarter.
��' The El Group, Inc. 888.372.5859
1 Environmental, Health and Safety Solutions.T"' www.eil.com

EI Project Number ENM0240047.00 S W PP P
TABLE OF CONTENTS
PAGE
PURPOSE AND MANAGEMENT COMMITMENT..................................................................iii
1.0 RESPONSIBLE PARTIES........................................................................................................1
2.0 GENERAL LOCATION MAP..................................................................................................2
3.0 SITE MAP .................................................................................................................................3
4.0 NARRATIVE DESCRIPTION OF INDUSTRIAL PROCESSES ...........................................5
5.0 EVALUATION OF STORMWATER OUTFALLS.................................................................6
6.0 STORMWATER BMP SUMMARY ........................................................................................7
7.0 SECONDARY CONTAINMENT PLAN.................................................................................9
8.0 SPILL PREVENTION AND RESPONSE PROCEDURES...................................................10
8.1 Spill Prevention......................................................................................................10
8.2 Spill Response........................................................................................................11
8.3 Inventory of Spill Response Materials and Equipment.........................................13
8.4 Significant Three Year Spill History.....................................................................13
9.0 SOLVENT MANAGEMENT PLAN......................................................................................14
10.0 PREVENTATIVE MAINTENANCE AND GOOD HOUSEKEEPING PROGRAM.........15
10.1 Preventative Maintenance......................................................................................15
10.2 Good Housekeeping...............................................................................................15
10.3 Facility Inspections................................................................................................16
10.4 Spent Lubricant and Fuel Disposal........................................................................16
11.0 EMPLOYEE TRAINING......................................................................................................17
12.0 ANNUAL SWPPP REVIEW AND UPDATE......................................................................18
13.0 MONITORING, RECORDKEEPING, AND REPORTING................................................19
13.1 Qualitative Monitoring...........................................................................................19
13.2 Analytical Monitoring............................................................................................20
13.3 Recordkeeping.......................................................................................................21
13.4 Reporting................................................................................................................21
LIST OF TABLES
Table 1-1 Responsible Parties
Table 3-1 Stormwater Discharge Outfall Drainage Area Summary
Table 6-1 BMP Summary
Table 7-1 Bulk Storage of Liquid Materials
Table 8-1 Response Assistance Phone Numbers
Table 8-2 Agency Reporting
Table 13-1 Benchmark Values for Stormwater Discharges
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' 1_ Lydech Thermal Acoustical
"Dow Hamptonville,North Carolina

EI Project Number ENM0240047.00 S W PP P
LIST OF FIGURES
Figure 1 General Location Map
Figure 2 Site Map
LIST OF APPENDICES
Appendix A Certificate of Coverage No. NCG050419 and General Permit No. NCG050000
Appendix B Non-Stormwater Evaluation Report and Certification
Appendix C SPRP Responsible Persons, Spill Report Form, and List of Significant Spills
Appendix D Inventory of Solvents
Appendix E Quarterly Facility Inspection Checklist
Appendix F Record of Training
Appendix G SWPPP Annual Review and Update Forms
Appendix H Stormwater Discharge Outfall (SDO)—Qualitative Monitoring Reports
Appendix I Stormwater Discharge Monitoring Reports—Analytical Monitoring
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' u- Lydech Thermal Acoustical
Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
PURPOSE AND MANAGEMENT COMMITMENT
The purpose of this Stormwater Pollution Prevention Plan (SWPPP) is to plan and document
measures to minimize impacts to stormwater discharged from the Lydech Thermal Acoustical
facility in Hamptonville, North Carolina from contact with industrial materials. This SWPPP has
been prepared to comply with the United States Environmental Protection Agency(EPA)National
Pollutant Discharge Elimination System (NPDES) program under the amended 1977 Federal
Water Pollution Control Act. The SWPPP has been developed using information from Stormwater
Management for Industrial Activities: Developing Pollution Prevention Plans and Best
Management Practice (USEPA, 1992). A SWPPP consists of steps and activities designed to
identify potential sources of stormwater pollution or contamination, and establishes Best
Management Practices (BMPs) that will prevent or reduce pollutants in stormwater runoff. This
SWPPP has been prepared in accordance with standard engineering practices.
The North Carolina Department of Environmental Quality (DEQ) has adopted final stormwater
permitting rules for industrial discharges in North Carolina. North Carolina is a delegated NPDES
state with general and individual permitting authority. EPA regulation 40 CFR 122 requires most
industrial facilities to apply for a NPDES permit for stormwater discharges. The Lydech facility
is covered by NPDES General Permit No. NCG050000, the current version of which became
effective June 1, 2023 and expires May 31, 2028. A copy of the Certificate of Coverage No.
NCG050419 and General Permit No. NCG050000 are included as Appendix A to this SWPPP.
This facility and its personnel are required to:
• Learn and implement stormwater pollution prevention procedures and requirements;
• Establish spill containment procedures and drainage control;
• Perform facility inspections, qualitative stormwater monitoring, and analytical stormwater
monitoring; and
• Maintain records to document compliance.
Lydech management is committed to preventing industrial pollution from exposure of stormwater
to hazardous materials and subsequent discharge to the environment through the implementation
and regular review and amendment to this SWPPP. This SWPPP has the full approval of
management, and Lydech has committed the necessary resources to implement the measures
described in this Plan.
By virtue of the signatory below,this SWPPP is accepted by Lydech and shall be implemented by
those designated responsible parties with the authority to commit the resources necessary to carry
out the requirements of the SWPPP.
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' Lydech Thermal Acoustical
"Dow Hamptonville,North Carolina

EI Project Number ENMO240047.00 SWPPP
"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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature:
Name: Conrad Moss
Title: EHS Manager
Date:
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' -iv- Lydech Thermal Acoustical
"DOW Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
1.0 RESPONSIBLE PARTIES
The responsible parties for overall coordination, development, implementation, and revision
(when necessary) of the SWPPP are listed in the table below.
Table 1-1 Responsible Parties
Responsible Parties
Name Title/Role Phone Numbers Responsibilities
EHS
Engineer/Primary SWPPP Pollution
Responsible Prevention Team(PPT)
Ariel Smith Party/Pollution 336-660-9616 (Mobile) Leader for implementation,
Prevention Team maintaining,review, and
(PPT)Lead updating the SWPPP
Alternate responsible party
for SWPPP and supervisor
of EHS Engineer
EHS Ensures PPT has adequate
Conrad Moss Manager/Alternate 336-468-5284 (Mobile) resources to implement the
Responsible Party SWPPP
Provides Responsible
Official signatures where
required
EHS Ensures annual training is
Randy Allred Coordinator/Alternate 743-433-0267 (Mobile) performed
Responsible Party
EHS Ensures SWPPP
Nelson Mullis Coordinator/Alternate 336-469-4138 (Mobile) inspections, sampling, and
Responsible Party monitoring are performed
and records are kept
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' 1_ Lydech Thermal Acoustical
"Dow Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
2.0 GENERAL LOCATION MAP
Lydech is located at 1241 Buck Shoals Road, Hamptonville, North Carolina, in an area of light
industrial, farmland and residential properties. Lydech occupies one parcel in the Yadkin County
tax records totaling approximately 36 acres. The property is located on Buck Shoals Road, south
of Route 421 North and west of Interstate-77. The site is bounded to the east by Interstate 77 and
the I-77 S access ramp. The site is bound to the north by US Highway 421. Property to the west
beyond Buck Shoals Rd is residential and agricultural. Property to the north and west includes
undeveloped,wooded land. Another industrial property(Ferrellgas)is located south of the Lydech
facility. Figure 1 illustrates the location of the Lydech Hamptonville site on a section of United
States Geological Survey(USGS)quadrangle map containing the elements stipulated for a General
Location Map in General Permit NCG050000.
Surface water drains from the site through five outfalls (001 —005),with some sheet flow. Figure
2 illustrates the locations of the outfalls relative to buildings, industrial material storage, and
retention ponds onsite. The western portion of the property drains to the north through sheet flow
and Outfall No. 001. The central portion of the property drains to the north through sheet flow
and a drainage ditch in the center of the property into Retention Pond #1 and then to Outfall No.
002. South of the metals plant and roadway drain to Retention Pond#3, Outfall 003 and Outfall
004. A storm sewer has been added west of the Metals Building expansion which discharges into
a catch basin located southeast of the Metals Building. Finally,the remainder of the property east
of the Metals Building drains via sheet flow to the south and east which discharges into Retention
Pond#2 and Outfall 005.
The general vicinity of the site drains to the north, south, and east. The receiving stream is Rocky
Branch, within the Yadkin Pee-Dee River Basin, which runs along the northern and eastern site
boundary and then flows southeast. The North Carolina Department of Environmental Quality
(DEQ), Division of Water Resources (DWR) Primary Surface Classification for Rocky Branch at
the time of development of this SWPPP update (May 2024) is WS-III (waters used as sources of
water supply for drinking, culinary, or food processing purposes where a more protective WS-1 or
II classification is not feasible. These waters are also protected for Class C uses. WS-III waters
are generally in low to moderately developed watersheds). This section of Rocky Branch is not
listed in the 2022 Integrated Report 303(d)list of impaired streams. A Total Maximum Daily Load
(TMDL) has not been established specific to Rocky Branch.
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' -2- Lydech Thermal Acoustical
Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
3.0 SITE MAP
Figure 2 presents a Site Map illustrating the locations of exposed industrial areas and other details
relevant to the elements stipulated for a Site Map in the General Permit NCG050000, including:
• Site property boundary;
• Site topography;
• Buildings, roads,parking areas, and other built-upon areas;
• Stormwater discharge outfalls;
• Stormwater Control Measures (e.g., ponds);
• Surface flow directions;
• Adjacent surface waters/wetlands (e.g., Rocky Branch); and
• A graphic scale and north arrow.
Approximately 60% of the 36-acre site is impervious surface (covered by buildings, asphalt, and
concrete). Table 3-1 summarizes the latitudes, longitudes, and drainage areas for the stormwater
discharge outfalls.
Table 3-1 Stormwater Discharge Outfall Drainage Area Summary
Outfall Description Approximate Industrial Outfall Outfall
Drainage Activity in Latitude Longitude
Area (Acres) Drainage Area
Overland sheet flow
and front parking lot
drainage toward the Storage of oil
northwest corner of drums in a diked
001 —8 storage facility 36.1225240 -80.8198420
the property in a and raw materials
ditch that leaves the receiving dock
property at Outfall
001
Shipping docks at
Overland sheet flow the rear of the
and rear parking lots fibers plant,
from a ditch and shipping/receivin
002 Retention Pond#1 —12 g for the metals 36.1221770 -80.817798"
toward the north plant, and the
central drainage center parking lot.
ditch that leaves the Also,dumpster
property at 002 siting area near
the stock room
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' -3- Lydech Thermal Acoustical
"Dow Hamptonville,North Carolina

EI Project Number ENM0240047.00 S W PP P
Outfall Description Approximate Industrial Outfall Outfall
Drainage Activity in Latitude Longitude
Area (Acres) Drainage Area
Overland sheet flow, Fire road south,
south lots and —5 paved storage
003 roadway into areas, and 36.119124° -80.817988°
Retention Pond#3 roadways
Roof drains from Metals Building
Metals Building and
004 eastern parking lot —6 Footprint and 36.1192240 -80.816851°
that leaves the eastern parking
roe at 004 lot
Overland sheet flow
from southeastern
portion of the parcel Southeastern
005 that drains to —5 acres portion of 36.1194320 -80.815667"
Retention Pond#2 property
and then at 005
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' -4- Lydech Thermal Acoustical
"Dow Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
4.0 NARRATIVE DESCRIPTION OF INDUSTRIAL PROCESSES
Lydech Thermal Acoustical designs and manufactures specialty engineered thermal and acoustical
insulating products for the automotive industry at the Hamptonville facility. Metallic insulating
products are manufactured in the Metals Building, and nonwoven fabric insulating products are
manufactured in the Fibers Building. Lydech's thermal products range from classic heat shields
in powertrain and underbody applications for ICE's (internal combustion engines) to extending
into EV(electric vehicle)battery thermal and EMI management. The application areas for Lydech
include but are not limited to direct exhaust mount heat shields,powertrain heat shields,underbody
heat shields, fuel and fluid-heat management,under-hood heat management, interior NVH (noise,
vibration&harshness), exterior NVH, interior thermal management, and EV battery applications.
The Hamptonville facility includes a Fibers building or Plant 1 and a Metals building or Plant 2.
Both Plant buildings contain office and manufacturing spaces, employee break room areas,
maintenance shops, and warehouse and product storage areas. Manufacturing activities are
conducted inside the buildings and not exposed to precipitation or stormwater runoff for the most
part.
Items stored outside of the property buildings include wood pallets (both virgin and used), metal
compactors, sanitary and scrap compactors, plastic bins, covered equipment, and covered scrap
metal dumpsters. A covered and diked hazardous waste and oil storage area is located to the west
of the Fibers Building (Plant 1).
The Lydech facility operates 24 hours daily, with activities being the manufacture of thermal and
acoustical insulating automotive products that provide protection to sensitive components and
occupant safety.
The exterior of Plant I (Fibers Building) has a closed compactor, a covered hazardous waste
storage area, an covered scrap metal dumpster and a dumpster for general trash. The exterior of
Plant 2 (Metals Building) has an enclosed compactor, a covered baler, and dumpsters for general
trash and scrap metal. The Metals Building has an oil storage room on the interior.
Potential pollutants that could be expected to be present in stormwater runoff from the Lydech
operations are primarily Total Suspended Solids (TSS) and oil and grease.
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' -5- Lydech Thermal Acoustical
Hamptonville,North Carolina

EI Project Number ENM0240047.00 swPPP
5.0 EVALUATION OF STORMWATER OUTFALLS
Non-stormwater flows present under dry weather conditions may be an indicator of unknown,
unpermitted sources of discharge. Lydech has visually inspected the stormwater discharge at the
outfalls during dry weather to evaluate for the presence of non-stormwater discharges. Lydech must
re-evaluate the stormwater outfalls (Outfalls 001, 002, 003, 004 & 005) for the presence of non-
stormwater discharges annually. If non-stormwater discharges are present, Lydech must identify the
source and record whether the discharge is allowable under NCG050000 or a different permit.
Lydech must evaluate the environmental significance of the non-stormwater discharges and include
a summary written record and certification statement, which must be retained with the SWPPP, and
shall be dated and signed by a responsible corporate officer. Appendix B contains a Non-Stormwater
Evaluation Report and Certification form which may be used for this purpose annually.
The following are non-stormwater discharges that are allowable under NCG050000:
• Uncontaminated groundwater;
• Foundation drains;
• Air conditioner(HVAC)condensate without added chemicals;
• Springs;
• Uncontaminated potable water;
• Waterline and fire hydrant flushings;
• Water from footing drains;
• Irrigation waters;
• Flows from riparian habitats and wetlands;
• Discharges resulting from fire-fighting; and
• Emergency shower or eye wash as a result of use in the event of an emergency.
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' -6- Lydech Thermal Acoustical
Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
6.0 STORMWATER BMP SUMMARY
Best Management Practices (BMPs) are measures or practices used to reduce the amount of
pollution entering surface waters. BMPs may take the form of a process, activity, or physical
structure. Wherever practical,Lydech shall prevent exposure of manufacturing operations, storage
areas, material handling operations, and maintenance activities to stormwater. In areas where
elimination of exposure to stormwater is not practical,Lydech implements procedures and general
good housekeeping practices to minimize potential contribution of pollutants to stormwater
discharges.
The following table summarizes the BMPs implemented at Lydech to meet the requirements of
General Permit NCG050000.
Table 6-1 BMP Summary
BMP Description Feasibility/Implementation
Good Maintain clean, dry floors(interiors) and Implemented as required for
housekeeping exterior grounds free of debris; regular inclusion in SWPPP.
pickup/disposal. (Section 10.2)
Preventative Periodic inspection and repair of equipment, Implemented as required for
Maintenance at minimum according to manufacturer inclusion in SWPPP.
recommendations. (Section 10.1)
Visual Quarterly inspection of facility systems and Facility inspections conducted
inspections equipment, outdoor storage, quarterly.
loading/unloading areas, storage sheds, (Section 10.3 and Appendix E)
structural BMPs, and stormwater drainage
system.
Spill prevention Measures implemented to prevent Implemented as required for
and response spills/leaks and response actions planned to inclusion in SWPPP.
contain and clean up in the event of a (Section 8.0)
spill/leak.
Employee Ensure awareness of operations with Implemented as required for
training potential impacts and knowledge of inclusion in SWPPP
responsibilities to prevent and contain spills (Section 11.0 and Appendix F))
and spill prevention and response measures.
Recordkeeping Monitor practices and identify Implemented as required for
and reporting improvements as necessary. inclusion in SWPPP.
(Section 13.3 and Appendices)
Security Limit access to properly trained personnel, Process and storage areas are within
minimizing exposure and potential for accessed controlled portions of site
accidental releases or vandalism. or within interior portions of
buildings.
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' -7- Lydech Thermal Acoustical
Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
BMP Description Feasibility/Implementation
Secondary Provisions to contain leaks/spills if released Drums and totes are stored inside
containment from primary container building structures. A 1,000 gallon
used oil tank and 1,000 gallon oily
wastewater tank are contained
within an interior oil storage room
of the Metals Plant 2. A 280 gallon
and 500 gallon used oil tank are
contained within a covered,diked
hazardous waste and oil storage area
west of the Fibers Plant 1. A 300
gallon diesel fuel tank is contained
within a fire pump building.
Bulk storage of liquid materials
provided with secondary
containment.
Section 7.0
Structural BMP Construction of loading/unloading docks to Loading docks constructed to allow
—Dock minimize potential for stormwater contact trucks and trailers to butt against
Construction and spills/leaks escaping to the bay doorways so as not to expose
environment. materials to precipitation and
provide for easy access to contain
spills/leaks.
Structural BMPs Ponds for removal of pollutants through Three retention ponds have been
-Ponds settling and filtration through vegetation, as constructed to manage stormwater
well as reduction of flow energy to runoff at the facility.
minimize erosion sediments.
The BMP summary must be re-evaluated annually for effectiveness in minimizing impacts to
stormwater. The annual assessment of adequacy of existing BMPs shall consider factors such as
whether or not there has been a significant spill within the past three (3) years and the results of
the analytical stormwater monitoring (Section 13.2). These evaluations must be documented,
signed, and kept with the SWPPP for a minimum of five (5) years. Appendix G contains forms
for use in documenting the required annual SWPPP review and update, including consideration of
the adequacy of existing BMPs.
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' -8- Lydech Thermal Acoustical
10OW Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
7.0 SECONDARY CONTAINMENT PLAN
Secondary containment is required for: bulk storage of liquid materials including petroleum
products; storage in any amount of Section 313 of Title III of the Superfund Amendments and
Reauthorization Act (SARA) water priority chemicals; and storage in any amount of hazardous
substances, in order to prevent leaks and spills from contaminating stormwater runoff. A table or
summary of all such tanks and stored materials and their associated secondary containment areas
shall be maintained.
"Bulk Storage of Liquid Materials,"is defined in the General Permit Part J Definitions as: "Liquid
raw materials, in-process liquids and reactants, manufactured products, waste materials or by-
products contained in a single above ground container,tank, or vessel having a capacity of greater
than 660 gallons or contained in multiple above ground containers, tanks, or vessels located in
close proximity to each other having a total combined capacity of greater than 1,320 gallons."
Table 7-1 is a list of tanks used for bulk storage of liquid materials summarizing the secondary
containment provided for these tanks.
Table 7-1 Bulk Storage of Liquid Materials
Tank ID Capacity Material Secondary Containment
(gallons)
Used Oil Tank 1,000 Used Oil
Oil Storage Room in Metals Plant 2
Oily Wastewater 1,000 Water
Used Oil Tank 1,000 Used Oil Covered,Diked Hazardous Waste and Oil
Used Oil Tank 1,000 Used Oil Storage Area West of Plant 1
Diesel Fuel Tank 300 Diesel Fire Pump Building
Exterior secondary containment dike systems are not used at the Lydech Hamptonville facility that
would require release of accumulated stormwater. The diked hazardous waste and oil storage area
west of the Fibers Plant 1 is covered such that rain water does not accumulate. Therefore, visual
monitoring and recordkeeping for controlled stormwater releases is not required.
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' -9- Lydech Thermal Acoustical
Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
8.0 SPILL PREVENTION AND RESPONSE PROCEDURES
The EHS Engineer is the primary responsible party for implementing the Spill Prevention and
Response Procedures (SPRP) contained in this section. Additional personnel have been delegated
appropriate authority to commit the necessary resources to implement the Plan and can assume
these responsibilities in absence of the EHS Engineer, such that a responsible person will be onsite
at all times during facility operations that have the potential to contaminate stormwater runoff
through spills or exposure to materials associated with facility operations. These responsible
persons have reviewed this Plan and indicate acceptance of these responsibilities by signature
documented in Appendix C.
The General Permit requires that the permittee develop a spill prevention and response component
within the SWPPP document to include:
(a) An assessment of areas of the facility where there is the potential for spills;
(b) A list of trained facility personnel responsible for implementing the SPRP;
(c) A signed and dated acknowledgement in which staff members accept responsibilities for
the SPRP;
(d) An inventory of spill response materials and equipment and the locations for storing these
items;
(e) Written procedures for proper cleanup and disposal of spilled materials; an
(f) A list of significant spills or leaks of pollutants that have occurred during the previous three
(3) years and any corrective actions taken to mitigate spill impacts or the notation that no
spills have occurred. This list shall be updated on annual basis.
Areas of the facility with the greatest potential for spills are the oil storage room within the Metals
Plant 2,the covered,diked hazardous waste and oil storage area west of the Fibers Plant 1,the Fire
Pump building, and in the manufacturing areas within Plants 1 and 2. Spills would be contained
within these structures.
The list of trained personnel implementing these SPRP, along with their signatures acknowledging
these responsibilities, is included in Appendix C.
Spill prevention and response procedures, spill response materials and equipment, and significant
spills/leaks are addressed in the following subsections.
8.1 Spill Prevention
In addition to storage and material transfers for bulk liquids begin conducted within structures that
would contain a spill/leak, Lydech implements the following spill prevention procedures for bulk
deliveries and liquid material transfers/dispensing.
Bulk Delivery Procedures
Lydech employees are responsible for the filling of tanks and handling of drums and totes.
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' -10 Lydech Thermal Acoustical
"Dow Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
Contract vendors may deliver bulk liquid materials to the site; however, employees will observe
and inspect the work of vendor deliveries to minimize accidental spills/leaks, ensure proper
transfer and storage, and ensure that spill response materials are readily available in the event of a
release. This includes:
• Verifying that all ports and valves have been properly closed after filling; and
• Inspect delivered totes and drums to assure they are placed in the correct locations
and are not damaged or leaking.
Dispensing Procedures
Employees follow standard procedures for dispensing liquids from either tanks, plastic totes, or
drums located both inside and outside of the facility buildings. Proper liquid dispensing
procedures follow:
• Before any liquid is dispensed, check for leaks or defects.
• Watch the vessel from which the liquid is being dispensed to react to spills.
• Once the transfer is completed,check to see that valve,pumps,and bungs are closed
tight. Inspect the transfer area for any spilled liquid.
• If any liquid has been spilled, act immediately using absorbent materials.
8.2 Spill Response
Uncontrolled discharge of material to groundwater, surface water, or soil is prohibited. Immediate
action must be taken to control, contain, and recover discharged material. Responsible and trained
Lydech personnel are present onsite at all times during facility operations that have the potential
to release oil into the environment.
In general, the following steps are taken as needed in the event of a release:
• Contact a member of the SPRP team(Appendix C);
• Assess the situation;
• Eliminate potential spark sources;
• Control access to the area;
• Put on necessary personal protective equipment;
• If possible and safe to do so, identify and shut down source of the discharge to stop the
flow;
• Contain the discharge with absorbents (Section 8.3);
• Contact regulatory authorities and the response organization; and
• Collect and dispose of recovered products according to regulation.
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' -11- Lydech Thermal Acoustical
"Dow Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
In the event of a spill/leak, the SPRP team member onsite shall be notified and will assume
management of the required spill response and outside agency notifications and reporting, if
required. The names and emergency telephone numbers for the delegated SPRP personnel are
presented in Appendix C.
The EHS Coordinator shall keep a record of significant spills and response actions to be kept with
this SWPPP for a minimum of five(5)years. The Spill Report Form(also contained in Appendix
C) can be used for this purpose, as well as to compile information that may need to be reported to
outside agencies. The EHS Manager will decide when outside assistance may be needed and
manage any outside agency reporting that may be required.
Emergency telephone numbers for outside assistance, if and as needed, are summarized in the
following Table.
Table 8-1 Response Assistance Phone Numbers
Outside Assistance Organization Emergency Phone Number
Fire Department 911 (Emergency Only)
Buck Shoals Fire Department 336-468-2112 (Non-Emergency)
Ambulance 911 (Emergency Only)
Police 911 (Emergency Only)
Yadkinville Police Department 336-679-2863 (Non-Emergency)
Shamrock Environmental—Primary Emergency Response 800-881-1098
Contractor
HAZ-MAT Environmental—Secondary Emergency Response 704-332-5600
Contractor
The reporting requirements for petroleum products are in North Carolina's Oil Pollution Act,
§143-215.85(a) and (b). North Carolina's Oil Pollution Act requires that if petroleum is
discharged,released or spilled in a quantity that is: 1) greater than 25 gallons, or 2) causes a sheen
on nearby surface water, or 3) is within 100 feet of a surface water body,the owner of the oil must
take immediate measures to contain, collect, and remove the discharge and notify the DEQ within
24 hours.
If the release is less than 25 gallons, does not cause sheen on nearby surface water, and is more
than 100 feet from surface water bodies, then the owner must immediately take measures to
contain, collect, and remove the discharge and restore the affected area. The release is not
reportable,unless it cannot be cleaned up within 24 hours.
The following table provides contact phone numbers and the circumstances under which each
agency should be verbally notified.
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' -12- Lydech Thermal Acoustical
101W Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
Table 8-2 Agency Reporting
Agency Phone Number When to Notify
>25 gallons or causes sheen on nearby
North Carolina Department of 336-776-9800 surface water or is less than 100 feet
Environmental Quality(DEQ) from surface water body
Winston-Salem Regional Office 800-858-0368
After Hours and Weekends
National Response Center 800-424-8802 If spill reaches navigable waterway
8.3 Inventory of Spill Response Materials and Equipment
Spill response materials,including absorbent materials, sorbent booms, sorbent sheets,gloves, and
empty drums are located in strategic locations throughout Plant 1,Plant 2 and in the vicinity of the
exterior hazardous waste storage and oils area and in locations close to oil containments.
8.4 Significant Three Year Spill History
General Stormwater Permit NCG050000 requires that the SWPPP include a list of significant spills
or leaks of pollutants during the previous three (3) years and any corrective actions taken to
mitigate spill impacts. The definition of"Significant Spills" in the permit includes releases of oil
or hazardous substances in excess of reportable quantities under Section 311 of the Clean Water
Act(CWA,40 CFR 110.3 and 40 CFR 117.3)or Section 102 of the Comprehensive Environmental
Response, Compensation, and Liability Act (CERCLA, 40 CFR 302.4).
Significant spills have not occurred at this facility within the past three (3) years. If significant
spills occur at the facility,they will documented in the list in Appendix C,and documentation shall
be maintained onsite for at least five (5)years.
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' -13- Lydech Thermal Acoustical
Iffow Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
9.0 SOLVENT MANAGEMENT PLAN
Hydrocarbon solvent is used as a metal working and cutting fluid in the Metals Building—Plant
2. This solvent is contained in 55-gallon drums, and there are typically four(4)to eight(8) drums
present onsite. Another Vanishing Oil/hydrocarbon solvent is used in the Fibers Building—Plant
1, which is contained in plastic 5-gallon jugs, of which there are typically two (2) to eight (8)
present onsite. Other than these primary hydrocarbon solvents used in Lydech manufacturing
processes, organic compounds may be present in aerosol cans of lubricants,paints, etc.
Solvents are typically used up and not disposed as waste. Small quantities of these materials are
sometimes disposed of as hazardous waste through a licensed, offsite, transportation and disposal
facility. These materials are labeled, stored, managed, and disposed of in accordance with
applicable Resource, Conservations, and Recovery Act (RCRA) hazardous waste requirements.
Lydech is a Very Small Quantity Generator(VSQG) of RCRA hazardous waste. Solvents are not
disposed of onsite.
Scrap metal is stored in covered dumpsters outside the buildings. Scrap metal does contain some
residual hydrocarbon fluid. Facility inspections (Section 10.3 and Appendix E) include checking
to ensure scrap metals are stored in covered dumpsters which are in good condition, and there is
not evidence of leaks.
Appendix D summarizes the typical maximum quantities of organic solvents onsite. Lydech will
update this list annually, if significant changes to this list occur.
Solvents are not used or stored outside buildings in areas that would be exposed to precipitation.
Lydech uses the following work practices for assuring that solvents do not spill or leak into
stormwater:
• Solvents are not used or stored outside buildings.
• Solvents are kept in closed containers with tightly fitting lids that are free of cracks,holes,
or other defects when not adding to or pouring from the container.
• Spills, drips, leaks are cleaned up as soon as possible.
• Scrap metal containing residual hydrocarbon fluid is stored in covered dumpsters,and these
dumpsters are visually inspected to ensure there is not evidence of leaking.
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EI Project Number ENM0240047.00 SWPPP
10.0 PREVENTATIVE MAINTENANCE AND GOOD HOUSEKEEPING PROGRAM
Lydech conducts preventative maintenance and regular testing and inspection of equipment as part
of normal operations on a routine basis. Plant personnel and maintenance staff are informed of
the need to identify potential maintenance issues that could create impacts to stormwater runoff.
General good housekeeping practices are also employed to maintain a clean and orderly work
environment as an effective initial measure toward preventing accidental spills/leaks that could
have an adverse impact on water quality. Clean and orderly work areas reduce the possibility of
accidental spills caused by mishandling materials and equipment, and reduce safety hazards to
personnel.
10.1 Preventative Maintenance
The Lydech preventative maintenance program is managed and implemented by qualified
maintenance personnel who routinely inspect operating equipment to ensure productive plant
operations, as well as uncover and correct potential failures that could contribute to spills/leaks,
such as cracks, slow leaks, corrosion, settling. The frequency of inspection and maintenance is
determined by the history of individual equipment. For purposes of this SWPPP, emphasis is
placed on material handling and loading equipment, and where equipment containing or involved
in the material transfer of significant materials is used outside, in areas exposed to stormwater. The
preventative maintenance program includes the following:
• Identification of equipment and systems to be inspected;
• Schedule for periodic inspections or testing of identified equipment;
• Appropriate and timely adjustment, repair, or replacement of equipment or parts when
needed; and
• Maintaining records for the maintenance performed and inspections of identified equipment.
At a minimum, schedules for routine maintenance follow the manufacturer recommendations.
In addition Lydech conducts quarterly facility inspections to ensure effective implementation of the
stormwater BMPs as described in the following Section 10.3.
10.2 Good Housekeeping
Lydech is committed to maintaining a clean, and therefore safe,work environment for employees.
Housekeeping issues are addressed in regular safety meetings. Managers and employees are
responsible for maintaining a clean and orderly workplace in order to improve safety, reduce
chance of spills/leaks, and reduce the potential for impacts to the environment. Specific practices
incorporated include the following:
• Maintain clean, dry floors and ground surfaces;
• Provide for regular pickup and disposal of garbage and waste material;
• Store containers, drums, and totes away from direct traffic to prevent accidental spills;
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' -15 Lydech Thermal Acoustical
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EI Project Number ENM0240047.00 SWPPP
• Stack containers according to manufacturers' instructions;
• Store containers of liquids on spill containment pallets and/or inside buildings to contain
leaks where possible;
• Provide adequate space to facilitate material transfer and easy access for inspections;
• Store empty drums in covered areas to prevent exposure to precipitation;
• Clearly mark materials requiring special handling;
• Label containers to show name and type of substance stored, expiration date if applicable,
health hazards, and suggestions for special handling if applicable; and
• Ensure that employees and contractors understand good housekeeping and spill cleanup
procedures.
It is the responsibility of all employees to observe good housekeeping practices and maintain work
areas inside and outside the buildings in a clean and orderly manner. Observed areas of poor
housekeeping will be immediately corrected or reported to the appropriate management personnel
for correction. Observed spills, trash, or debris will be properly cleaned up and disposed of in a
manner appropriate to the waste type.
10.3 Facility Inspections
The NPDES General Permit No. NCG050000 requires that inspections of the facility be performed at
minimum on a quarterly schedule (January — March, April — June, July — September, October —
December). The purpose of these inspections is to ensure that stormwater BMPs are functioning
properly and being adequately maintained to minimize stormwater impacts from industrial activities.
At minimum, the facility inspections should cover observation of general maintenance and
housekeeping conditions for exposed material storage and handling areas, disposal areas, process
areas, loading and unloading areas, and haul roads.
Lydech performs facility inspections quarterly to meet the NCG050000 inspection requirement.
Appendix E contains a Quarterly BMP Inspection Checklist to be used to facilitate and document the
facility inspections. Records documenting these inspections must be kept onsite with the SWPPP for
at least five(5)years.
10.4 Spent Lubricant and Fuel Disposal
Lydech does not conduct fueling operations at the Hamptonville site, and does not generate fuel waste.
Small amounts of used oil are collected in 55-gallon drums and shipped to an offsite oil reclamation
facility through an outside transportation,waste broker, and disposal contractor for recycling. Used oil
is not stored outside in areas exposed to precipitation or stormwater runoff. An exterior hazardous waste
and oil storage area on the west side of the Metals Building (Plant 2) is secured, covered, and diked to
prevent a release from impacting stormwater.
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101W Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
11.0 EMPLOYEE TRAINING
The NPDES General Permit NCG050000 requires that employee training be developed and provided on
an annual basis for facility personnel responsible for operations that have the potential to contaminate
stormwater runoff. The training shall be documented by the date, signature, and printed or typed name
of each employee trained. The annual employee training shall address the following topics as applicable
to the facility:
• General stormwater awareness;
• Spill response training;
• Used oil management(not stored outside);
• Spent solvent management (not stored outside); and
• Used battery management(not stored outside).
The EHS Coordinator is responsible for ensuring required personnel receive this training annually,
and that their training is documented by signature of each employee trained. The annual training
shall be documented by the signature of each employee that participates. Appendix F contains a
Record of Training form that can be used in documenting the employees receiving the annual
SWPPP training. Records of training (including the signatures of the employees receiving the
training)must be kept onsite with the SWPPP for purposes of compliance with the NPDES General
Permit No. NCG050000 for at least five (5)years.
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101W Hamptonville,North Carolina

EI Project Number ENM0240047.00 SWPPP
12.0 ANNUAL SWPPP REVIEW AND UPDATE
All aspects of the SWPPP shall be reviewed and updated on an annual basis. Lydech shall amend the
SWPPP whenever there is a change in design, construction, operation, site drainage, maintenance, or
configuration of the physical features which may have a significant effect on the potential for the
discharge of pollutants to surface waters. Appendix G contains a Plan Review,Update,and Amendment
Recertification Form for use in conducting and documenting the required annual SWPPP reviews.
In addition, the SWPPP update shall include a review and comparison of sample analytical data to
benchmark values over the past year,including a discussion about Tiered Response status. Lydech shall
use the DEQ Annual Summary Data Monitoring Report(DMR)/SWPPP Annual Update Data Review
Form(Appendix G)or equivalent method of documentation and benchmark comparison.
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EI Project Number ENM0240047.00 SWPPP
13.0 MONITORING, RECORDKEEPING,AND REPORTING
General Permit No. NCG050000 requires both qualitative (visual assessment) and analytical
monitoring to be conducted for stormwater discharge outfalls (Outfalls 001, 002, 003, 004, and
005). The required frequency is quarterly(January—March,April—June,July—September,October
— December). Stormwater samples are to be collected as grab samples during a measurable event
within the first 30 minutes of discharge. A measurable event is a storm event that results in an actual
discharge from the outfall. The previous measurable event must have been at least 72 hours prior.
Additionally, a minimum of 30 days must separate the monitoring dates, unless monitoring
frequency is increased to monthly(e.g.,as a result of benchmark exceedances). Monitoring should
occur during the facility's normal operating hours,not during severe adverse weather conditions,and
while the flow is characteristic of the volume and nature of the permitted discharge. If during the
entire monitoring period, there is no discharge from an outfall, then Lydech shall record "No
Discharge"on the relevant Discharge Monitoring Report(DMR) forms.
13.1 Qualitative Monitoring
Lydech will visually inspect, observe, and assess stormwater at Outfalls 001, 002, 003, 004, and
005 on a quarterly basis. The qualitative assessment shall include observations of:
• Color,
• Odor,
• Clarity,
• Floating Solids,
• Suspended Solids,
• Foam,
• Oil Sheen,
• Deposition at or immediately below the outfall,
• Erosion at or immediately below the outfall, and
• Other obvious indicators of stormwater pollution.
The qualitative observations from each monitoring event shall be recorded using the Stormwater
Discharge Outfall (SDO) Qualitative Monitoring Report included in Appendix H. Qualitative
monitoring results are not required to be submitted to the DEQ; however, a record of the
monitoring needs to be kept onsite with the SWPPP for at least five (5) years.
If the permittee's qualitative monitoring indicates that the SWPPP and/or existing stormwater BMPs
are ineffective, or that significant stormwater contamination is present, then the permittee shall
investigate potential causes, evaluate the feasibility of corrective actions, and implement those
feasible corrective actions within sixty (60) days. A written record of the permittee's investigation,
evaluation, and response actions shall be kept in the SWPPP for at least five(5)years.
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EI Project Number ENM0240047.00 SWPPP
13.2 Analytical Monitoring
Analytical monitoring is a new requirement with the latest version of NCG050000 effected June
1, 2023. The previous version of NCG050000 did not require analytical monitoring except for
vehicle and equipment maintenance activities which used more than 55 gallons of new motor oil
and/or hydraulic oil per month when averaged over the calendar year. The Lydech facility is an
existing facility which was previously permitted under General Permit NCG050000 which had a
six (6) month grace period before analytical monitoring must begin. Lydech is required to start
the following analytical monitoring for the stormwater discharge at Outfalls 001, 002, 003, 004
and 005 in Quarter 1 of 2024.
Grab samples shall be collected, analyzed, and reported for Total Suspended Solids (TSS), pH,
and Chemical Oxygen Demand(COD). In addition,grab samples shall be analyzed for Non-Polar
Oil & Grease in vehicle or equipment maintenance areas in which more than 55 gallons of new
motor oil and/or hydraulic oil per month is used when averaged over the calendar year. Lydech
shall record the laboratory analytical results, as well as the average monthly use of new motor oil
and hydraulic oil and the total rainfall amount for each sampling in inches on the DEQ Stormwater
Discharge Monitoring Report(DMR)Form for NCG050000 included in Appendix I. Total rainfall
shall be determined from an on-site rain gauge or a regional rain gauge located within one(1)mile
of the facility.
The analytical results for stormwater samples collected will be compared to the benchmark values
summarized in the following table(as applicable to the Lydech facility). These benchmark values
are not permit limits, but are used as a guideline for determining need to increase monitoring
frequency, implement management actions, and/or improve stormwater BMPs.
Table 13-1 Benchmark Values for Stormwater Discharges
Discharge Characteristics Benchmark Values Units
Total Suspended Solids(TSS) 100 mg/L
H 6-9 Standard Units
Chemical Oxygen Demand(COD) 120 mg/L
For vehicle or equipment maintenance areas in which more than 55 gallons of motor oil
and/or hydraulic oil is used per month:
Non-Polar Oil& Grease/TPH by EPA mg/L
Method 1664 (SGT-HEM) 15
Grab samples shall be analyzed for pH within 15 minutes of collection. This requires use of
an onsite pH meter or pH paper.
Copies of the Stormwater Discharge Monitoring Report (DMR) Form for NCG050000 are to be
kept onsite with the SWPPP for at least five(5)years. Additionally,a copy of the DMR(completed
using the form in Appendix I) is required to be submitted to the North Carolina Department of
Environmental Quality(DEQ),Division of Energy,Mineral and Land Resources(DEMLR)within
30 days after the end of the monitoring period.
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EI Project Number ENM0240047.00 SWPPP
Analytical results for each parameter shall be compared to the benchmark values. An exceedance
of a benchmark value is not a permit violation, as these benchmarks are not discharge limits.
However, failure to respond to an exceedance as outlined in the NCG050000 General Permit is a
violation. An exceedance of any benchmark value shall require a tiered response for that outfall,
as outlined in NCG050000. A single exceedance of a benchmark value shall require a Tier One
response for that outfall. Two consecutive benchmark value exceedances shall require a Tier Two
response for that outfall. Four benchmark exceedances for a parameter within the permit term
shall require a Tier Three response for that outfall. See General Permit Sections E-6, E-7, and
E-8 (Appendix A) for details of specific actions, DEMLR notifications, written reports, and
Action Plans for Tier One, Tier Two, and Tier Three benchmark exceedance response
requirements.
13.3 Recordkeeping
Records relating to compliance with the conditions of the NPDES General Permit NCG050000,
as identified in this SWPPP, are required to be maintained onsite for at least five(5)years. These
records include the following:
• SWPPP reviews and amendments (Section 12.0 and Appendix G);
• Updates to significant three year spill history (Section 8.4 and Appendix C);
• Annual recertification of evaluations of non-stormwater discharges (Section 5.0 and
Appendix B);
• Annual recertifications of effectiveness of BMPs (Section 6.0, annual recertification form in
Appendix G);
• An annually updated and quantified inventory of solvents present onsite during the
previous three years — confirm no significant changes or modify as appropriate (Section
9.0 and Appendix D);
• Maintenance records (Section 10.1);
• Facility inspections(Section 10.3 and Appendix E);
• Employee training records(Section 11.0 and Appendix F);
• Stormwater Discharge Outfall — Qualitative Monitoring Reports (Section 13.1 and
Appendix H);and
• Stormwater Discharge Monitoring Reports(DMRs)—Analytical Monitoring(Section 13.2
and Appendix I);
• Annual Summary Data Monitoring Report (DMR) with comparison to benchmarks and a
discussion of Tiered Response status (Appendix G or other equivalent record).
13.4 Reporting
A summary of the reporting to the DEMLR required by the NPDES General Permit NCG050000,
as identified in this SWPPP, is as follows:
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Hamptonville,North Carolina

EI Project Number ENM0240047.00 swPPP
• Results of analytical benchmark monitoring must be submitted to the DEMLR within 30
days after the monitoring period ends using the Appendix I form, scanning, and uploading
prior to full implementation of the eDMR system, and then using eDMR once fully
implemented; and
• The permittee must submit an online certification of annual SWPPP reviews and updates
once DEMLR develops and implements this capability.
When results are below the detection limit, they shall be reported in the format, "<XX mg/L,"
where XX is the numerical value of the detection limit. If no discharge occurs during the sampling
period, Lydech must record that in the facility's monitoring records within 30 days of the end of
the sampling period. "No Discharge" shall be reported on the Annual Summary Discharge
Monitoring Report(Appendix G DMR).
The deadline for submittal of the DMRs to the DEMLR is 30 days after the monitoring period
ends. The submittal process before the Electronic Discharge Monitoring Reporting (eDMR)
system begins to accept the eDMR reporting is the following:
• Sample results shall be recorded on Discharge Monitoring Report (DMR) forms provided
by the DEQ (Appendix I).
• DMRs shall be signed and certified by the Delegated Authorized Individual.
• Original, signed DMR forms shall be scanned and uploaded to the electronic DMR
submittal form, which can be found by typing "deq.nc.gov/SW-Industrial" into a browser
window and hitting "enter."
• Then, the original signed DMR Forms shall be mailed or otherwise delivered to the
Winston-Salem Regional Office:
North Carolina Department of Environmental Quality(DEQ)
Division of Energy, Mineral and Land Resources (DEMLR)
450 West Hanes Mill Road, Suite 300
Winston-Salem,NC 27105
Permittees are required to register for eDMR within 30 days of the Certificate of Coverage (COC)
issuance date. Permittees shall follow the guidelines for submitting data that are set forth in the
Stormwater eDMR User Manual, available on the Division's website at deq.nc.gov/SW-eDMR.
Until a permittee is registered in eDMR, they shall continue to submit DMRs using the DMR
Upload Form to upload scanned DMRs and mail original signed DMRs to the appropriate Regional
Office.
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' -22- Lydech Thermal Acoustical
"Dow Hamptonville,North Carolina

FIGURES

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Receiving water is Rocky Branch within the Yadkin Pee-Dee River Basin,designated as Class WS-III waters. Rocky Branch is not listed in the 2022 Integrated Report 303(d)
list of impaired waters. TMDLs have not been established specific to Rocky Branch.
FIGURE NUMBER: 1
GENERAL LOCATION MAP
REFERENCE: 2022 USGS,Brooks Crossroads,NC Quad .` '
Lydech Thermal Acoustical Inc.
PROJECT NUMBER: ENM0240047.00 1241 Buck Shoals Road z
SCALE: As Shown Hamptonville,NC 27020

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FIGURE NUMBER: 1
SITE MAP
REFERENCE: Yadkin County GIS Lydech Thermal Acoustical Inc.
PROJECT NUMBER: ENM0240047.00 1241 Buck Shoals Road
SCALE: As Shown Hamptonville,NC 27020

APPENDIX A
CERTIFICATE OF COVERAGE NO. NCG050419
AND
GENERAL PERMIT NO. NCG050000

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL,AND LAND RESOURCES
GENERAL PERMIT NO. NCG050000
CERTIFICATE OF COVERAGE No. NCG050419
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Lydall Thermal Acoustical Inc
is hereby authorized to discharge stormwater from a facility located at:
Lydall Thermal Acoustical Inc - Hamptonville Facility
1241 Buck Shoals Rd
Hamptonville
Yadkin County
to receiving waters designated as Rocky Branch, class WS-III waters in the Yadkin River
Basin(s), in accordance with the effluent limitations, monitoring requirements, and other
conditions set forth in General Permit No. NCG050000 which can be downloaded by
entering"deq.nc.gov/SW-industrial" in the browser window and navigating to the "NPDES
Stormwater General Permits" web page.
This certificate of coverage shall become effective June 1, 2023.
This Certificate of Coverage shall remain in effect for the duration of the General Permit or
until rescinded.
Michael Lawyer, Stormwater Program Supervisor
Division of Energy, Mineral and Land Resources
By the Authority of the Environmental Management Commission

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL,AND LAND RESOURCES
GENERAL PERMIT NO. NCGO50000
TO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
For establishments primarily engaged in the following activities:
Apparel, Printing, Leather, Rubber, &Miscellaneous Manufacturing
In compliance with the provision of North Carolina General Statute 143-215.1,other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission and the Federal Water Pollution Control Act,as amended,this permit is
hereby issued to all owners or operators,hereafter permittees,which are covered by this permit as
evidenced by receipt of a Certificate of Coverage (COC) by the Environmental Management
Commission to allow the discharge of stormwater to the surface waters of North Carolina or to
a separate storm sewer system conveying discharges to surface waters in accordance with the
terms and conditions set forth herein.
Coverage under this General Permit is applicable to:
♦ All owners or operators of stormwater point source discharges associated with activities from
establishments primarily engaged in
• Apparel and Other Finished Products Made from Fabrics and Similar Materials
[Standard Industrial Classification (SIC) 23],
• Printing Publishing and Allied Industries [SIC 27],
• Converted Paper and Paperboard Products [SIC 267],
• Paperboard Containers and Boxes [SIC 265],
• Miscellaneous Manufacturing Industries [SIC 39],
• Leather and Leather Products [SIC 31],and
• Rubber and Miscellaneous Products [SIC 30];
♦ Storm water point source discharges from like industrial activities deemed by The Division of
Energy, Mineral,and Land Resources (DEMLR) to be similar to these operations in the process,
or the discharges, or the exposure of raw materials,intermediate products,by-products,final
products, or waste products.
Except upon DEMLR determination of similarity as provided immediately above, coverage under this
General Permit is not applicable to:
♦ Contaminated stormwater as defined in Part J: Definitions of this permit.
The General Permit shall become effective on June 1, 2023.
The General Permit shall expire at midnight on May 31, 2028.
Signed this 30th day of May 2023.
Original signed by Douglas Ansel
Douglas Ansel,Interim Director
Division of Energy, Mineral,and Land Resources
By the Authority of the Environmental Management Commission

Permit No.NCG050000
TABLE OF CONTENTS
PART A NCGO50000 PERMIT COVERAGE
PART B STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
B-1. Responsible Party
B-2. General Location Map
B-3. Site Map
B-4. Narrative Description of Industrial Process
B-5. Evaluation of Stormwater Outfalls
B-6. Stormwater Best Management Practice (BMP) Summary
B-7. Secondary Containment Plan
B-8. Spill Prevention and Response Procedures
B-9. Solvent Management Plan
B-10. Preventative Maintenance and Good Housekeeping
B-11. Employee Training
B-12. Representative Outfall Status
B-13. Devices Exempt from Analytical Monitoring
B-14. Annual SWPPP Review and Update
B-15. Notice to Modify the SWPPP
B-16. SWPPP Documentation
PART C OPERATIONAL REQUIREMENTS
C-1. Operation and Maintenance of Treatment and Control Systems
C-2. Stormwater Control Measure (SCM) Clean-Out
C-3. Residuals Management
C-4. Corrective Actions
C-5. Draw Down of Treatment Facilities for Essential Maintenance
C-6. Bypasses of Stormwater Treatment Facilities
C-7. Upsets
C-8. Required Notices for Bypasses and Upsets
PART D QUALITATIVE MONITORING OF STORMWATER DISCHARGES
D-1. Visual Inspections
D-2. Qualitative Monitoring Response
PART E ANALYTICAL MONITORING OF STORMWATER DISCHARGES
E-1. Required Baseline Monitoring
E-2. Baseline Sampling Benchmarks
i

Permit No.NCG050000
E-3. Emerging Contaminants
E-4. Methodology for Collecting Samples
E-5. Locations for Collecting Samples
E-6. Tier I Response: Single Benchmark Exceedance
E-7. Tier II Response: Two Consecutive Benchmark Exceedances
E-8. Tier III Response: Four Benchmark Exceedances Within Five Years
PART F SUBMITTAL OF DISCHARGE MONITORING REPORTS (DMRs)
F-1. Deadlines for eDMR Registration
F-2. Discharge Monitoring Report(DMR) Forms Submittal
F-3. DMR Signature and Certification
F-4. Results Below Detection Limits
F-5 Occurrences of No Discharge
F-6. Reports Required if More Frequent Monitoring Has Occurred
F-7. Report Required if Begin Discharging to a Water Not Listed in COC
F-8. Submittal Process before Electronic Discharge Monitoring Reporting (eDMR)
F-9. Qualitative Monitoring Reports
F-10. Monitoring Report Retention
PART G OTHER OCCURANCES THAT MUST BE REPORTED
PART H PERMIT ADMINISTRATION
H-1. Signatory Requirements
H-2. General Permit Expiration
H-3. Planned Changes
H-4. Transfers
H-5. When an Individual Permit May be Required
H-6. When an Individual Permit May be Requested
H-7. General Permit Modification, Revocation and Reissuance, or Termination
H-8. Certificate of Coverage Actions
H-9. Requirement to Report Incorrect Information
H-10. Waivers from Electronic Reporting
H-11. Annual Administering and Compliance Monitoring Fee Requirements
H-12. Flow Measurements
H-13. Test Procedures
H-14. Availability of Reports
H-15. Action Plan Submittal and Approval
PART I COMPLIANCE AND LIABILITY
ii

Permit No.NCG050000
I-1. Compliance Schedule
I-2. Duty to Comply
I-3. Duty to Mitigate
I-4. Civil and Criminal Liability
I-5. Oil and Hazardous Substance Liability
I-6. Property Rights
I-7. Severability
I-8. Duty to Provide Information
I-9. Penalties for Tampering
I-10. Penalties for Falsification of Reports
I-11. Onshore or Offshore Construction
I-12. Duty to Reapply
I-13. Inspection and Entry
I-14. Need to Halt or Reduce not a Defense
PART J DEFINITIONS
iii

Permit No.NCG050000
PART A: NCG05 PERMIT COVERAGE
All persons desiring to have facilities covered by this General Permit must register with the
Division of Energy,Mineral,and Land Resources (DEMLR) by filing a Notice of Intent(NOI)
and paying the applicable fees.The NOI shall be submitted and a Certificate of Coverage
(COC) issued prior to any discharge of stormwater associated with industrial activity that
has a point source discharge to surface waters of the state or to a separate storm sewer
system conveying discharges to surface waters.
Any owner or operator not wishing to be covered or limited by this General Permit may
make application for an individual National Pollutant Discharge Elimination System
(NPDES) permit in accordance with NPDES procedures in 15A NCAC 2H .0100,stating the
reasons supporting the request.Any application for an individual permit shall be made at
least 180 days prior to commencement of discharge.
This General Permit does not cover activities or discharges covered by an individual NPDES
permit until the individual permit has expired or has been revoked.Any person conducting
an activity covered by an individual permit,but which could be covered by this General
Permit may request that the individual permit be revoked and coverage under this General
Permit be provided.
If industrial materials and activities are not exposed to precipitation or runoff as described
in 40 CFR§122.26(g),the facility may qualify for a No Exposure Exclusion from NPDES
stormwater discharge permit requirements.Any owner or operator wishing to obtain a No
Exposure Exclusion from permitting must submit a No Exposure Certification NOI form to
DEMLR; must receive approval from DEMLR;must maintain no exposure conditions unless
authorized to discharge under a valid NPDES stormwater permit; and must recertify the No
Exposure Exclusion annually.
Any facility may apply for new or continued coverage under this permit until a Total
Maximum Daily Load (TMDL) for pollutants for stormwater discharges is established_A
TMDL is for one or more watersheds with one or more impaired waters. The TMDL sets
one or more pollutant-loading limit(s)that affect(s) one or more watersheds,or portion of a
watershed,draining to one or more impaired waters. A list of approved TMDLs for the state
of North Carolina can be found at https://deq.nc.gov/about/divisions/water-
resources/planning/modeling-assessment/tmdls.To not be subject to the TMDL,each
facility with one or more discharges to watersheds affected by a TMDL must demonstrate it
does not have reasonable potential to violate applicable water quality standards for those
pollutants identified in the TMDL as a result of discharges. If DEMLR determines that
discharges have reasonable potential to cause water quality standard violations,the facility
shall apply for an individual permit 180 days prior to the expiration date of this General
Permit.After that individual permit becomes effective,the facility will no longer have
coverage under this General Permit. Note although there is not a TMDL for every impaired
water,the permittee must identify impaired waters in the General Location Map,as outlined
in the Stormwater Pollution Prevention Plan (SWPPP),Part B of this permit. The
Department of Environmental Quality- Division of Water Resources integrated reports
(https:IIdeq.nc.gov/about/divisions/water-resources/planning/modelL g--
assessment/water-quality-data-assessment/integrated-report-files) include assessments of
waters monitored in North Carolina. Use the most recent final report to identify impaired
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Permit No.NCG050000
waters.
Until this permit expires or is modified or revoked,the permittee is authorized to discharge
stormwater to the surface waters of North Carolina or a separate storm sewer system which
has been treated and managed in accordance with the terms and conditions of this General
Permit and the requirements of the permittee's COC.
The permittee's COC is hereby incorporated by reference into this General Permit.Any
violation of the COC is a violation of this General Permit and subject to enforcement action
as provided in the General Permit.
Any other point source discharge to surface waters of the state is prohibited unless it is an
allowable non-stormwater discharge or is covered by another permit,authorization,or
approval.The discharges allowed by this General Permit shall not cause or contribute to
violations of Water Quality Standards. Discharges allowed by this permit must meet
applicable wetland standards as outlined in 15A NCAC 213.0230 and.0231 and water
quality certification requirements as outlined in 15A NCAC 21-1.0500.
If industrial activities expand or change after issuance of the COC such that the types of
discharges are affected,the permittee must first contact the Division to determine if
modifications to the COC are necessary.
This permit does not relieve the permittee's responsibility for compliance with any other
applicable federal,state,or local law,rule,standard,ordinance,order,or decree. (i.e.,take
of Endangered Species Act(ESA)-protected species prohibited under section 9 of the ESA).
Other federal Services can provide technical assistance to avoid violation of the ESA section
9.
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Permit No.NCG050000
PART B: STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
The permittee shall develop a Stormwater Pollution Prevention Plan (SWPPP).The SWPPP
shall be maintained on site unless exempted from this requirement by DEMLR.The
permittee shall implement the SWPPP and all Best Management Practices (BMPs)
consistent with the provisions of this permit,to control contaminants entering surface
waters.
These items shall exist for the duration of the permit term and made available to the
Director upon request and also shall be sent to the Regional Office upon request.The
SWPPP shall be considered public information in accordance with I-8 of this General Permit.
The SWPPP shall include,at a minimum,the following items:
B-1. Responsible Party
The SWPPP shall identify specific position(s) responsible for the overall coordination,
development,implementation,and revision of the SWPPP. Responsibilities for all
components of the SWPPP shall be documented and position assignments provided.
B-2. General Location Map
The General Location Map shall be a USGS quadrangle map or appropriately drafted
equivalent map that includes:
(a) The facility's location in relation to transportation routes and surface waters;
(b) The name of the receiving waters to which the stormwater outfalls discharge, or if the
discharge is to a municipal separate storm sewer system,the name of the municipality
and the ultimate receiving waters;
(c) Any impaired receiving waters,use the most recent final integrated report
(https://deq.nc.govlabout/divisions/water-resources/planning/modeling-
assessment/water-quality-data-assessment/integrated-report-files) to identify impaired
waters;
(d) If the site is in a watershed for which a TMDL has been established,include a list of the
parameter(s) of concern (those exceeding water quality standards).
B-3. Site Map
The Site Map shall include the following at a scale sufficient to clearly depict all required
features. At a minimum,the map shall include:
(a) Site property boundary;
(b) Site topography;
(c) Buildings,roads,parking areas and other built-upon areas;
(d) Industrial activity areas (including,but not limited to: vehicle maintenance activities,
waste disposal activities, or equipment,storage of materials, disposal areas,process areas,
loading and unloading areas,and haul roads);
(e) Stormwater discharge outfalls and a table of latitudes and longitudes;
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Permit No.NCG050000
(f) Delineated drainage area for each outfall and a table of impervious percentage for each
drainage area;
(g) Stormwater Control Measures (SCMs);
(h) All stormwater collection/drainage features,structures and direction of flow;
(i) On-site and adjacent surface waters and wetlands; and
(j) A graphic scale and north arrow.
B-4. Narrative Description of Industrial Processes
The narrative description shall include:
(a) Storage practices;
(b) Loading and unloading activities;
(c) Outdoor process areas;
(d) Dust or particulate generating and control processes;
(e) Waste disposal practices; and
(f) A list of potential pollutants that could be expected to be present in the Stormwater
discharge for each outfall.
B-5. Evaluation of Stormwater Outfalls
On an annual basis,the permittee shall evaluate all stormwater outfalls for the presence of
non-Stormwater discharges. If non-stormwater discharges are present,the permittee shall
identify the source and record whether the discharge is otherwise permitted by rule or a
different permit.The permittee shall evaluate the environmental significance of the non-
stormwater discharges and include a summary written record and certification statement.
The certification statement and summary written record shall be retained with the SWPPP.
and shall be dated and signed in accordance with the requirements found in H-1.
B-6. Stormwater BMP Summary
The installation and implementation of BMPs shall be based on the assessment of the
potential for sources to contribute significant quantities of pollutants to stormwater
discharges and on data collected through monitoring of stormwater discharges. BMP
Summary shall be reviewed and updated annually.
The BMP Summary shall include:
(a) Written record of the specific rational for installation and implementation of the
selected site BMPs.
(b) Structural and nonstructural practices to minimize the exposure and transport of
materials in stormwater.
(c) BMPs for vehicle maintenance activities.
B-7. Secondary Containment Plan
In order to prevent leaks and spills from contaminating stormwater runoff,secondary
containment is required for: bulk storage of liquid materials including petroleum products;
storage in any amount of water priority chemicals listed in Section 313 of Title III of the
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Permit No.NCG050000
Superfund Amendments and Reauthorization Act(SARA); and storage of hazardous
substances in any amount.
For facilities subject to the federal Spill Prevention, Control,and Countermeasure (SPCC)
regulation,the SPCC Plan may be used to support compliance with this requirement.
The Secondary Containment Plan shall include:
(a) A table or summary of tanks and stored materials equipped with secondary containment
systems;
(b) Manually activated valves or other similar devices that are securely closed with a locking
mechanism if the secondary containment devices are connected to stormwater
conveyance system;
(c) A commitment to visually observe any accumulated stormwater prior to release for color,
foam, outfall staining,visible sheens,and dry weather flow; and
(d) Records on every release from a secondary containment system that include:the
individual making the observation,a description of the accumulated stormwater,and the
date and time of the release. These records shall be kept for a period of five (5)years.
B-8. Spill Prevention and Response Procedures
A responsible person shall be on-site at all times during facility operations that have
potential to contaminate stormwater runoff through spills or exposure of materials
associated with the facility operations. For facilities subject to the federal SPCC regulation,
the SPCC Plan may be used to support compliance with this requirement.
The Spill Prevention and Response Procedures (SPRP) shall include:
(a) An assessment of areas of the facility where there is the potential for spills;
(b) A list of trained facility personnel responsible for implementing the SPRP;
(c) A signed and dated acknowledgement in which staff members accept responsibilities for
the SPRP;
(d) An inventory of spill response materials and equipment and the locations for storing
these items;
(e) Written procedures for proper cleanup and disposal of spilled materials; and
(f) A list of significant spills or leaks of pollutants that have occurred during the previous
three (3)years and any corrective actions taken to mitigate spill impacts or the notation
that no spills have occurred. This list shall be updated on annual basis.
B-9. Solvent Management Plan
The Solvent Management Plan shall be incorporated as a separate chapter into the
Stormwater Pollution Prevention Plan (SWPPP).
The Solvent Management Plan (SMP) shall include:
(a) an annually updated and quantified inventory of solvents present on site during the
previous three years;
(b) a narrative description of the facility locations and uses of solvents;
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Permit N0.NCG050000
(c) the method of disposal,including quantities disposed on-site and off-site; and
(d) the management procedures and engineering measures for assuring that solvents do
not spill or leak into stormwater.
Should the facility already be in possession of a plan that addresses
If solvents are not stored or used onsite,the owner must certify that in the SWPPP.DEMLR
may at is discretion require submittal,review,and approval of the SMP. The 1ermittee shall
include the following signed certification statement on each discharge monitoring report:
"Based upon my inquiry of the person or persons directly responsible for managing
compliance with the permit requirement for managing solvents, I certify that to best of my
knowledge and belief,no leak,spill,or dumping of concentrated solvents into the
stormwater or onto areas which are exposed to rainfall or stormwater runoff has occurred
since filing the last discharge monitoring report. I further certify that this facility is
implementing all provisions of the Solvent Management Plan included in the Stormwater
Pollution Prevention Plan."
B-10. Preventative Maintenance and Good Housekeeping Program
A preventative maintenance and good housekeeping program (PMGHP) shall be developed
and implemented.
The PMGHP shall include:
(a) A schedule of inspections,maintenance,and housekeeping measures for industrial
activity areas including,at a minimum,all material storage and handling areas,disposal
areas,process areas,loading and unloading areas,haul roads,and vehicle maintenance
areas. Inspections shall occur at a minimum on a quarterly schedule (January-March,
April-June,July-September, October-December).
(b) A plan for disposing spent lubricants and fuels properly and in accordance with applicable
federal disposal regulations;
(c) A record of inspections,maintenance,and housekeeping activities.
B-11. Employee Training
Employee training shall be developed and provided on an annual basis for facility personnel
responsible for operations that have the potential to contaminate stormwater runoff. The
training shall be documented by the date,signature,and printed or typed name of each
employee trained.
The annual employee training shall include the following topics if applicable to the facility:
(a) General stormwater awareness;
(b) Spill response training;
(c) Used oil management;
(d) Spent solvent management;
(e) Secondary containment releases;
(f) Fueling procedure;
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Permit No.NCG050000
(g) Disposal of spent abrasives;
(h) Disposal of vessel wastewaters;
(i) Used battery management.
B-12. Representative Outfall Status
If a facility has multiple discharge locations with substantially identical stormwater
discharges that are required to be sampled,the permittee may petition the Director for
representative outfall status (ROS). If it is established that the stormwater discharges are
substantially identical and the permittee is granted representative outfall status,then
analytical sampling requirements may be performed at a reduced number of outfalls.
If DEMLR has granted ROS,documentation from DEMLR shall be part of the SWPPP. The
permittee shall notify DEMLR of any site or activity modifications that result in a change to
ROS.
B-13. Devices Exempt from Analytical Monitoring
The permittee may request a device be exempted from analytical monitoring based on as-
built plans, Engineer's Certification, design calculations, and approved construction
drawings. Exemption from analytical monitoring is contingent on Regional Office approval.
B-14. Annual SWPPP Review and Update
All aspects of the SWPPP shall be reviewed and updated on an annual basis.The permittee
shall amend the SWPPP whenever there is a change in design,construction,operation,site
drainage,maintenance, or configuration of the physical features which may have a
significant effect on the potential for the discharge of pollutants to surface waters.
In addition,the SWPPP update shall include a review and comparison of sample analytical
data to benchmark values (if applicable) over the past year,including a discussion about
Tiered Response status.The permittee shall use DEMLR's Annual Summary Data Monitoring
Report(DMR) form, available from the Stormwater Permitting Program's website
(https://deq.nc.gov lab out/divis ions/energy-mineral-land-resources/npdes-stormwater-
gp-S)
1345. Notice to Modify the SWPPP
The Director may notify the permittee when the SWPPP does not meet one or more of the
minimum requirements of the permit.Within 30 days of such notice,the permittee shall
submit a time schedule to the Director for modifying the SWPPP to meet minimum
requirements.Upon completion of the modifications,the permittee shall provide
certification in writing in accordance with H-1 and H-7 of this permit to the Director that
the changes have been made.
1346. SWPPP Documentation
Copies of the SWPPP shall be maintained on-site and be available electronically to DEMLR
upon request.These records or copies shall be maintained for a period of at least five years.
This period may be extended by request of the Director at any time [40 CFR 122.41].
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Permit No.NCGOS0000
PART C: OPERATIONAL REQUIREMENTS
Permitted operations shall be subject to the following operational requirements.
C-1. Operation and Maintenance of Treatment and Control Systems
The permittee shall at all times:
(a) Properly operate and maintain all facilities and systems of treatment and control
and related appurtenances which are installed or used by the permittee to achieve
compliance with the conditions of this permit.
(b) Implement laboratory controls and quality assurance procedures for onsite
laboratories and/or on-site testing.
(c) Operate back-up or auxiliary facilities or similar systems which are installed by a
permittee only when the operation is necessary to achieve compliance with the
conditions of this permit[40 CFR 122.41(e)].
C-2. SCM Clean-Out
When applicable, SCMs must be cleaned out when sediment storage capacity equals or
exceeds SO percent of the design sediment volume or if visible sedimentation is leaving the
property.
C-3. Residuals Management
The residuals generated from treatment facilities must be disposed of in accordance with
applicable standards and in a manner such as to prevent any pollutants from such materials
from entering waters of the state or navigable waters of the United States.
C-4. Corrective Actions
The permittee shall take corrective actions if self-inspections required by this permit
identify a need for corrective actions,a facility fails to perform satisfactorily, or a facility
creates nuisance conditions.
Corrective actions shall include,but not be limited to: maintenance,modifications, or
additions to existing control measures,the construction of additional or replacement
treatment or disposal facilities, or implementation of new BMPs. Corrective actions shall be
completed as soon as possible considering adverse weather and site conditions
C-5. Draw Down of Treatment Facilities for Essential Maintenance
The permittee may draw down stormwater treatment facilities if these conditions are met:
(a) Analytical sampling data of the water stored in the treatment facility demonstrates
that the discharge will not exceed benchmarks in this permit. The sampling data
shall be collected no more than 14 calendar days prior to the draw down; and
(b) The drawdown is for essential maintenance to assure efficient operation.
C-6. Bypasses of Stormwater Treatment Facilities
Bypass is prohibited,and DEMLR may take enforcement action against a permittee for
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Permit No.NCG050000
bypass unless either of the following conditions are met:
(a) The bypass was unavoidable to prevent loss of life,personal injury or severe
property damage;
(b) There were no feasible alternatives to the bypass,such as the use of auxiliary
control facilities,retention of stormwater,or maintenance during normal periods of
equipment downtime or dry weather.This condition is not satisfied if adequate
backup controls should have been installed in the exercise of reasonable
engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance.The permittee shall submit
notices identify the reason(s) for the bypass as required under C-8 below.
C-7. Upsets
Diversions of stormwater from treatment facilities may be considered as an upset, rather
than a bypass, if the permittee can demonstrate to the Director that all of the following
conditions have been met. In any enforcement proceeding,the permittee seeking to
establish the occurrence of an upset has the burden of proof.
(a) The permittee demonstrates that the upset was not caused by operational error,
improperly designed treatment or control facilities,lack of preventive maintenance, or
careless or improper operation.
(b) The permittee agrees to take remedial measures if necessary.
(c) The permittee submitted notice of the upset and identified the cause(s) of the upset as
required under CC=8 below.
C-8. Required Notice for Bypass or Upset
After a permittee becomes aware of an occurrence that must be reported,the permittee
shall contact the appropriate Division regional office within the timeframes and in
accordance with the requirements listed in Table 1 below. Occurrences outside normal
business hours may also be reported to the Department's Environmental Emergency
Hotline at(800) 858-0368.
Table 1: Bypass and Upset Reporting Requirements
Event Reporting Requirements
[40 CFR 122.41(m)(3)]
Anticipated Bypass Written report at least ten days prior to the anticipated
bypass. The written report shall include an evaluation of the
anticipated quantity,quality,and effect of the bypass.
Unanticipated Bypass or Upset Oral or electronic notification within 24 hours of the event,
and
Written report within 7 calendar days of the event. The written
report shall include an evaluation of the quantity,quality,and
effect of the b ass.
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Permit No.NCG050000
PART D: QUALITATIVE MONITORING OF STORMWATER DISCHARGES
The purpose of qualitative monitoring is to implement a quick and inexpensive way to
evaluate the effectiveness of the permittee's SWPPP,to identify the potential for new
sources of stormwater pollution,and to prompt the permittee's response to pollution.
D-1. Visual Inspections
(a) Visual inspections shall be made at each stormwater discharge outfall (SDO) that
discharges stormwater associated with industrial activity unless representative
outfall status specifically for visual monitoring has been approved in writing by
DEMLR.
(b) Visual inspections shall be performed concurrent with required analytical monitoring.
(c) Visual inspections are not required to be performed outside of the facility's normal
operating hours.
(d) Visual inspections shall be recorded on DEMLR's Stormwater Discharge Outfall
Qualitative Monitoring Report (QMR) form and shall include observations of:
• Color
• Odor
• Clarity
• Floating Solids
• Suspended Solids
• Foam
• Oil Sheen
• Deposition at or immediately below the outfall
• Erosion at or immediately below the outfall,and
• Other obvious indicators of stormwater pollution.
(e) Inability to perform inspections because of adverse weather or lack of discharge during
the monitoring period shall not constitute a failure to monitor if the event is
documented in the SWPPP and recorded on the Qualitative Monitoring Report.
D-2. Qualitative Monitoring Response
(a) If the permittee's qualitative monitoring indicates that the SWPPP and/or existing
stormwater BMPs are ineffective, or that significant stormwater contamination is
present,then the permittee shall investigate potential causes,evaluate the feasibility
of corrective actions,and implement those feasible corrective actions within sixty
(60) days.
(b) A written record of the permittee's investigation,evaluation,and response actions
shall be kept in the SWPPP.
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Permit No.NCG050000
PART E: ANALYTICAL MONITORING OF STORMWATER DISCHARGES
This part applies to industrial stormwater discharges from covered activities.
E-1. Required Baseline Sampling
The permittee shall perform baseline sampling of all stormwater discharge outfalls and/or
authorized representative discharge outfalls in accordance with this part.
(a) Grab samples shall be collected,analyzed,and reported for the following
parameters: (Total Suspended Solids (TSS),pH,Chemical Oxygen Demand (COD)).
In addition, grab samples shall be analyzed for Non-Polar Oil&Grease in vehicle or
equipment maintenance areas in which more than 55 gallons of new motor oil
and/or hydraulic oil per month is used when averaged over the calendar year.
(b) In addition to the grab samples,the average monthly usage of new motor and
hydraulic oil used for vehicle maintenance at the facility shall be tracked and
recorded.
(c) The total rainfall amount for each sampling event shall be recorded in inches. Total
rainfall shall be determined from an on-site rain gauge or a regional rain gauge
located within one (1) mile of the facility.
(d) Samples shall be collected from four separate monitoring periods per year. A
minimum of thirty(30) days must separate any two sampling events during the
following periods:
• January 1 -March 31
• April 1 -June 30
• July 1 -September 30.
• October 1 -December 31
(e) If an outfall was in Tier Two or Tier Three status under the previous permit,the
permittee shall continue monthly monitoring and reporting requirements at said
outfall until relieved by the provisions of this permit or DEMLR.
(f) Existing facilities previously permitted and renewed under this General Permit will
have a 6 month grace period before analytical monitoring is required.Upon
issuance of this General Permit,renewed COCs will begin monitoring in
Quarter 1 of 2024 (January 1st) and follow the above-mentioned monitoring
schedule.
E-2. Baseline Sampling Benchmarks
(a) Analytic results for each parameter shall be compared to the benchmark values for the
appropriate receiving stream classification as provided in Table 2. An exceedance of a
benchmark value is not a permit violation; however,failure to respond in accordance
with E-2(b) below is a permit violation.
(b) An exceedance of any benchmark value shall require a tiered response for that outfall.
A single exceedance of a benchmark value shall require a Tier One response for that
outfall. Two benchmark value exceedances in a row shall require a Tier Two response
for that outfall. Four benchmark exceedances for a parameter within the five (5)year
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Permit No.NCG050000
permit cycle shall require a Tier Three response for that outfall. For purposes of
benchmark comparison and Tiered response actions,the permittee shall use the
analytical results from the first sample with valid results.
(c) Baseline sampling benchmarks shall be in accordance with Table 2 below.
Table 2: Summary of Quarterly Baseline Sampling Requirements
Parameter Receiving Stream
Parameter Benchmark
Code Classification(s)1
All,except below 100 mg/L
CO530 Total Suspended Solids (TSS)
B W,0RW,jr, PNA 50 mg/L
400 pHz Freshwater 6.0-9.0 S.U.
Saltwater 6.8-8.5 S.U.
46529 Total Rainfall of Sampled
Event Inches
340 Chemical Oxygen Demand All 120 mg/L
Average Monthly Motor Oil
NCOIL Usage at the Facility - -
allons month
For vehicle or equipment maintenance areas in which more than 55 Gallons of motor oil
and/or hydraulic oil is used per month.
Non-Polar Oil&Grease
552 All 15 mg/L
per EPA Method 1664 SGT-HEM
1 Defined in Definitions Section
2 Grab samples shall be analyzed for pH within 15 minutes of collection.
E-3. Emerging Contaminants
If notified by the Director,the permittee shall monitor for Emerging Contaminants such as
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) in accordance with written notification.
For more information about PFAS and other Emerging Contaminants,please visit
deq.nc.govInews/key-issues/emerging-compounds/understanding-pfas.
E-4. Methodology for Collecting Samples
(a) Outfall monitoring efforts shall begin with the first measurable storm event in the
monitoring period that occurs during the facility's normal operating hours.
(b) Sampling is not required to be performed during adverse weather conditions.
(c) Samples collected shall be characteristic of the volume and nature of the permitted
discharge.
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Permit No.NCG050000
(d) Grab samples shall be collected within the first 30 minutes of discharge from an outfall
and continue until all outfalls that are discharging have been sampled.
(e) Outfalls that are not sampled during the first measurable storm event in the monitoring
period shall be sampled during the next measurable storm event in the monitoring
period until a sample has been collected.
(f) If, during the entire monitoring period,there is no discharge from an outfall during any
measurable storm event then the permittee shall:
a. Report"No Discharge"in the DMR,
b. Note"No Discharge" in the SWPPP,and
c. Submit the DMR within 30 days after the end of the monitoring period.
(g) Lack of a discharge from an outfall for the monitoring period shall not constitute failure
to monitor as long as the above permit conditions are met.
(h) If the sampled storm event coincides with a known non-stormwater discharge that is
deemed permitted under 15A NCAC 02 .0106,then this shall be noted on the DMR.
E-5. Locations for Collecting Samples
Samples shall be collected at all stormwater discharge outfalls (SDO) that discharge
stormwater associated with industrial activity. If DEMLR has issued a representative outfall
status approval letter,then the permittee shall collect samples from all SDOs in accordance
with the SDO approval letter.
(a) All samples shall be taken before the discharge joins or is diluted by any other waste
stream,body of water, or substance.
(b) Monitoring points as specified in this General Permit shall not be changed without
written notification to and approval by DEMLR [40 CFR 122.41(j)].
E-6. Tier One Response: Single Benchmark Exceedance
The outfall(s)will remain in Tier One status until three consecutive samples are under the
benchmark or are inside the benchmark range for all parameters.
(a) If any sampling result is above the benchmark value or outside the benchmark
range for any parameter at any outfall,then the permittee shall respond in
accordance with Table 3 to identify and address the source of that exceedance for
that parameter.
(b) Each required response shall be documented in the SWPPP as each action occurs
including; the date and value of the benchmark exceedance,the date DEMLR's
Regional Office was notified of the exceedance,the inspection date,the personnel
conducting the inspection,the selected feasible actions,and the date the selected
feasible actions were completed.
(c) Each exceedance of a benchmark parameter shall individually require a Tier I
response.
(d) If three consecutive samples produce results below benchmark for all parameters,
then the outfall"resets" and exits Tier Relief.
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Permit No.NCG050000
Table 3: Tier One Response for a Benchmark Exceedance
Timeline From
Receipt of Sampling Tier One Required Response/Action
Results
Continuously i. Document the exceedance and each required response/action in
the SWPPP in accordance with E-6(b) above.
Within two weeks ii. Notify DEMLR's Regional Office of the exceedance date and value
via email,in writing,or,when it is developed,an electronic form
created by DEMLR for reporting exceedances.
iii. Conduct a stormwater management inspection.
iv. Identify and evaluate possible causes of the benchmark
exceedance.
Within one month v. Select specific,feasible courses of action to reduce concentrations
of the parameter(s) of concern including,but not limited to,
source controls,operational controls,or physical improvements.
Within two months vi. Implement the selected feasible actions.
E-7. Tier Two Response: Two Consecutive Benchmark Exceedances
The outfall(s)will remain in Tier Two status until three consecutive samples are under the
benchmark or are inside the benchmark range for all parameters.
(a) If any two consecutive sampling results in a row for the same parameter are above
the benchmark value or outside the benchmark range at an outfall,then the
permittee shall respond in accordance with Table 4 to identify and address the
source of exceedances for that parameter.
(b) After implementing the specific feasible courses of action,perform monthly
monitoring at every outfall where a sampling result exceeded the benchmark value
for two consecutive samples for all parameters until three samples in a row are
below the benchmark value or are inside the benchmark range.
(c) Each required response shall be documented in the SWPPP as each action occurs
including;the dates and values of the benchmark exceedances,the date DEMLR's
Regional Office was notified of the consecutive exceedances,the inspection date,the
personnel conducting the inspection,the selected feasible actions,the date the
selected feasible actions were completed,and the monthly monitoring results.
(d) Each pair of two consecutive exceedances of a single benchmark parameter at a
single outfall shall constitute an event that requires a Tier Two response.
Subsequent events shall not include the same exceedances that have been
addressed in a Tier Two response.
(e) If three consecutive samples produce results below benchmark for all parameters,
then the outfall"resets"and exits Tier Response.
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Permit No.NCG050000
Table 4: Tier Two Response for Two Consecutive Benchmark Exceedances
Timeline From
Receipt of Sampling Tier Two Required Response/Action
Results
Continuously i. Document the exceedance and each required response/action in
the SWPPP in accordance with E-7(c) above.
Within two weeks H. Notify DEMLR's Regional Office of the exceedance date and value
via email,in writing,or,when it is developed,an electronic form
created by DEMLR for reporting exceedances.
iii. Conduct a stormwater management inspection.
iv. Identify and evaluate possible causes of the benchmark
exceedance.
Within one month v. Select specific,feasible courses of action to reduce
concentrations of the parameter(s) of concern including,but not
limited to,source controls,operational controls,or physical
improvements.
Within two months vi. Implement the selected feasible actions.
vii. Implement monthly monitoring at every outfall where a
sampling result exceeded the benchmark value for two
consecutive samples for all parameters until three samples in a
row are below or within the benchmark value.
E-8. Tier Three Response: Four Benchmark Exceedances Within 5 Years.
The outfall(s)will remain in Tier Three status until three consecutive samples are under the
benchmark or are inside the benchmark range for all parameters.
(a) If any four sampling results within a five-year period for any single parameter are
above the benchmark value or outside the benchmark range at a sampled outfall,
then the permittee shall respond in accordance with Table 5 to identify and address
the source of exceedances for that parameter at that outfall.
(b) An outfall enters Tier Three status when there are 4 exceedances of the same
parameter in a single permit cycle regardless of previous Tiers.
(c) The permittee shall prepare a written Action Plan and submit to DEMLR's Regional
Office for review and approval within thirty(30) days of receipt of the fourth
analytic monitoring data point that exceeds the benchmark value. At a minimum,
the Action Plan shall include:
• documentation of the four benchmark exceedances,
• an inspection report that covers the industrial activities within the drainage
area of the outfall with the exceedances (including the date of the inspection and
the personnel conducting the inspection),
• an evaluation of standard operating procedures and good housekeeping
procedures,
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Permit No.NCG050000
• identification of the source(s) of exceedances,
• specific actions that will be taken to remedy the identified source(s) with a
schedule for completing those actions,and
• a monitoring plan to verify that the Action Plan has addressed the source(s).
(d) The permittee shall keep the Action Plan in the SWPPP and document when each
specific action was carried out and by whom.
(e) The permittee shall contact DEMLR's Regional Office when all actions in the Action
Plan are completed.
(f) If three consecutive samples produce results below benchmark for all parameters,
then the outfall"resets" and exits Tier Response.
Table 5: Tier Three Response for Four Benchmark Exceedances Within Five Years
Timeline From
Receipt of Fourth Tier Three Required Response/Action
Sampling Result
Continuously i. Document the exceedances and each required response/action in
the Action Plan in accordance with E-8(c) above.
ii. Implement monthly monitoring for all parameters at the subject
outfall and continue until three samples in a row are below or
within the benchmark value.
Within two weeks iii. Notify DEMLR's Regional Office of the exceedance date and value
via email,in writing,or,when it is developed,an electronic form
created by DEMLR for reporting exceedances.
iv. Conduct a stormwater management inspection.
v. Identify and evaluate possible causes of the benchmark
exceedance.
Within one month vi. Prepare an Action Plan that should include specific,feasible
courses of action to reduce concentrations of the parameter(s) of
concern including,but not limited to,source controls,
operational controls,or physical improvements and submit to
DEMLR's Regional Office for review and approval in accordance
with Part H-15.
Upon DEQ Approval vii. Implement the approved Action Plan.
Upon Completion of viii.Notify DEMLR's Regional Office of Action Plan completion.
Approved Action Plan
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Permit No.NCG050000
PART F: SUBMITTAL OF DISCHARGE MONITORING REPORTS (DMRs)
F-1. Deadlines for eDMR Registration
Unless otherwise informed by the Director, permittees are required to register for eDMR
within 30 days of the Certificate of Coverage issuance date. Permittees shall follow the
guidelines for submitting data that are set forth in the Stormwater eDMR User Manual,
available on the Division's website at deq.nc.gov/SW-eDMR.Until a permittee is registered
in eDMR,they shall continue to submit DMRs using the DMR Upload Form to upload
scanned DMRs and mail original signed DMRs to the appropriate Regional Office. For COCs
issued between March 1-31,June 1-30, September 1-30 or December 1-31,sampling shall
not commence until the next sampling period following initial issuance of the COC.
F-2. Discharge Monitoring Report(DMR) Forms Submittal
Analytical results within the monitoring period shall be submitted no later than 30 days from
the date the facility receives all the sampling results. Samples analyzed in accordance with
the terms of this General Permit shall be recorded on DMR forms provided by the Director.
DMR forms are available on DEMLR's website (https:IIdeq.nc.gov/aboutZdivisionslenergy-
mineral-land-res ources./np des-stormwater-gps.)
F-3. DMR Signature and Certification
DMRs shall be signed and certified by a person meeting the Signatory requirements in H-1.
F-4. Results Below Detection Limits
When results are below detection limit,they shall be reported in the format, "<XX mg/L,"
where XX is the numerical value of the detection limit.
F-5. Occurrences of No Discharge
If no discharge occurs during the sampling period,the permittee must record that in the
facility's monitoring records within 30 days of the end of the sampling period. "No
Discharge"shall be reported on the Annual Summary Discharge Monitoring Report(DMR).
F-6. Reports Required if More Frequent Monitoring Has Occurred
Monitoring conducted in addition to permit requirements shall be included in the DMR.The
permittee is encouraged to take more samples than required by the permit during a monitoring
period to help identify potential causes of exceedance(s). When taking additional samples,the
permittee may not use the lowest recorded results for compliance purposes to avoid required
Tier Response actions.Additional sampling is for informational purposes only and will not
result in additional requirements.
F-7. Report Required if Discharging to a Water Not Listed in the COC
The permittee shall request a modification to the COC from DEMLR prior to discharging from a
new stormwater discharge outfall (SDO) to a waterbody that is not listed on the most current
COC.
F-8. Submittal Process before Electronic Discharge Monitoring Reporting(eDMR)
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Permit No.NCG050000
Original,signed DMRs shall be scanned and uploaded to the electronic DMR submittal form,
which can be found by typing"deq.nc.gov/SW-Industrial"into a browser window and hitting
"enter."
Then,the original signed DMRs shall be mailed or otherwise delivered to the appropriate
Regional Office,which is indicated at: https://deq.nc.gov/contact/regional-offices/.
F-9. Qualitative Monitoring Reports
The permittee shall record the required qualitative monitoring observations on the SDO
Qualitative Monitoring Report form provided by DEMLR and shall retain the completed
forms on site. Qualitative monitoring results shall not be submitted to DEMLR, except upon
DEMLR's specific requirement to do so. Qualitative Monitoring Report forms are available
on DEMLR's website (https://deq.nc.gov/about/divisions/energy-mineral-land-
resources/npdes-stormwater-gps). Please note that permittees may use their own forms to
record qualitative monitoring results as long as they include all required items.
F-10. Monitoring Report Retention
Copies of the following reports shall be maintained on-site or be available electronically to
DEMLR upon request.These records or copies shall be maintained for a period of at least 5
years from the date of the sample,measurement,report, or Notice of Intent application.This
period may be extended by request of the Director at any time [40 CFR 122.41].
(a) Calibration and maintenance records,
(b) Original recordings for continuous monitoring instrumentation,
(c) DMRs and eDMRs or other electronic DMR report submissions,
(d) Qualitative monitoring records,and
(e) Copies of all data used to complete the Notice of Intent to be covered by this General
Permit.
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Permit No.NCG050000
PART G: OTHER OCCURENCES THAT MUST BE REPORTED
After a permittee becomes aware of an occurrence that must be reported,permittee shall contact
the appropriate Division regional office within the tmeframes and in accordance with the other
requirements listed in Table 6 below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at(800) 858-0368.
The reporting requirements are listed in Table 7 below.
Table 7: Other Occurrences that Shall Be Reported
Occurrence Reporting Timeframes(After Discovery) and
Other Requirements
Visible sediment deposition in a (a) Within 24 hours,an oral or electronic notification.
stream or wetland (b) Within 7 calendar days,a report that contains a
description of the sediment and actions taken to address
the cause of the deposition.Division staff may waive the
requirement for a written report on a case-by-case basis.
(c) If the stream is listed as impaired on the DWR Integrated
Report for sediment-related causes,the permittee may be
required to perform additional monitoring,inspections or
apply more stringent practices if staff determine that
additional requirements are needed to assure compliance
with the federal or state impaired-waters conditions.
Oil spills if they are:
• 25 gallons or more,
• less than 25 gallons but cannot (d) Within 24 hours,an oral or electronic notification. The
be cleaned up within 24 hours, notification shall include information about the date,time,
• cause sheen on surface waters nature,volume and location of the spill or release.
(regardless of volume),or
• are within 100 feet of surface
waters(regardless of volume).
Releases of hazardous substances
in excess of reportable quantities
under Section 311 of the Clean (e) Within 24 hours,an oral or electronic notification. The
Water Act Ref:40 CFR 110.3and notification shall include information about the date,time,
40 CFR 117.3) or section 102 of nature,volume and location of the spill or release.
CERCLA(Ref:40 CFR 302.4) or
G.S.143-215.85
Anticipated bypasses [40 CFR (f) A report at least ten days before the date of the bypass,
122.41(m)(3)] if possible. The report shall include an evaluation of the
anticipated quality and effect of the bypass.
Unanticipated bypasses [40 CFR (g) Within 24 hours,an oral or electronic notification.
122.41(m)(3)] (h) Within 7 calendar days,a report that includes an
evaluation of the quality and effect of the bypass.
Noncompliance with the (i) Within 24 hours,an oral or electronic notification.
conditions of this permit that may (j) Within 7 calendar days,a report that contains a
endanger health or the description of the noncompliance,and its causes;the
environment[40 CFR period of noncompliance,including exact dates and times,
122.41(1)(7)] and if the noncompliance has not been corrected,the
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Permit No.NCG050000
anticipated time noncompliance is expected to continue;
and steps taken or planned to reduce,eliminate,and
prevent reoccurrence of the noncompliance. [40 CFR
122.41(1)(6).
(k) Division staff may waive the requirement for a written
report on a case-by-case basis.
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Permit No.NCG050000
PART H: PERMIT ADMINISTRATION
H-1. Signatory Requirements
All applications,reports,or information submitted to the Permitting Issuing Authority shall
be signed and certified [40 CFR 122.41(k)].
(a) All Notices of Intent to be covered under this General Permit shall be signed as follows:
• For a corporation: by a responsible corporate officer. For the purpose of this
Section,a responsible corporate officer means: (a) a president,secretary,
treasurer or vice president of the corporation in charge of a principal business
function,or any other person who performs similar policy or decision making
functions for the corporation,or(b)the manager of one or more manufacturing,
production,or operating facilities,provided,the manager is authorized to make
management decisions which govern the operation of the regulated facility
including having the explicit or implicit duty of making major capital
investment recommendations,and initiating and directing other
comprehensive measures to assure long term environmental compliance with
environmental laws and regulations;the manager can ensure that the necessary
systems are established or actions taken to gather complete and accurate
information for permit application requirements; and where authority to sign
documents has been assigned or delegated to the manager in accordance with
corporate procedures.
• For a partnership or sole proprietorship: by a general partner or the
proprietor,respectively; or
• For a municipality,State,Federal,or other public agency:by either a
principal executive officer or ranking elected official [40 CFR 122.22].
(b) All reports required by this General Permit and other information requested by
the Permit Issuing Authority shall be signed by a person described in paragraph
(a) above or by a duly authorized representative of that person.A person is a
duly authorized representative only if.
• The authorization is made in writing by a person described above;
• The authorization specified either an individual or a position having
responsibility for the overall operation of the regulated facility or activity,
such as the position of plant manager,operator of a well or well field,
superintendent,a position of equivalent responsibility,or an individual or
position having overall responsibility for environmental matters for the
company. (A duly authorized representative may thus be either a named
individual or any individual occupying a named position.);and
• The written authorization is submitted to the Permit Issuing Authority[40 CFR 122.22].
(c) Changes to authorization: If an authorization under paragraph (b) of this section is
no longer accurate because a different individual or position has responsibility for
the overall operation of the facility,a new authorization satisfying the requirements
of paragraph (b) of this section must be submitted to the Director prior to or
together with any reports,information,or applications to be signed by an
authorized representative [40 CFR 122.22].
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Permit No.NCG050000
(d) Any person signing a document under paragraphs a. or b. of this section,or
submitting an electronic report(e.g.,eDMR), shall make the following
certification [40 CFR 122.22]. No other statements of certification will be
accepted.
'7 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 forgathering 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 offines and imprisonmentfor knowing violations."
H-2. General Permit Expiration
General permits will be effective for a term not to exceed five years, at the end of which
DEMLR may renew them after all public notice requirements have been satisfied. If a
general permit is renewed, existing permittees do not need to submit a renewal request or
pay a renewal fee unless directed by DEMLR. New applicants seeking coverage under a
renewed general permit must submit a Notice of Intent(NOI) to be covered and obtain a
Certificate of Coverage under the renewed general permit [15A NCAC 02H .0127(e)].
H-3. Planned Changes
The permittee shall give notice to the Director as soon as possible of any planned changes at
the permitted facility which could significantly alter the nature or quantity of pollutants
discharged [40 CFR 122.41(1)].This notification requirement includes pollutants which are
not specifically listed in the General Permit or subject to notification requirements under 40
CFR Part 122.42 (a).
H-4. Transfers
This General Permit is not transferable to any person without prior written notice to and
approval from the Director in accordance with 40 CFR 122.61.The Director may condition
approval in accordance with NCGS 143-215.1,in particular NCGS 143-215.1(b)(4)b.2.,and
may require modification or revocation and reissuance of the Certificate of Coverage, or a
minor modification,to identify the new permittee and incorporate such other requirements
as may be necessary under the CWA [40 CFR 122.41(l)(3), 122.61] or state statute.The
permittee is required to notify DEMLR in writing in the event the permitted facility is sold
or closed.
H-5. When an Individual Permit May be Required
The Director may require any owner/operator authorized to discharge under a Certificate
of Coverage issued pursuant to this General Permit to apply for and obtain an individual
permit or an alternative general permit.Any interested person may petition the Director to
take action under this paragraph. Cases where an individual permit may be required
include,but are not limited to,the following:
(a) The discharger is a significant contributor of pollutants;
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Permit No.NCG050000
(b) Conditions at the permitted site change,altering the constituents and/or
characteristics of the discharge such that the discharge no longer qualifies for a
general permit;
(c) The discharge violates the terms or conditions of this General Permit;
(d) A change has occurred in the availability of demonstrated technology or
practices for the control or abatement of pollutants applicable to the point
source;
(e) Effluent limitations are promulgated for the point sources covered by this General Permit;
(f) A water quality management plan containing requirements applicable to such point
sources is approved after the issuance of this General Permit;
(g) The Director determines at his or her own discretion that an individual permit is required.
H-6. When an Individual Permit May be Requested
Any permittee operating under this General Permit may request to be excluded from the
coverage of this General Permit by applying for an individual permit.When an individual
permit is issued to an owner/operator the applicability of this General Permit is
automatically terminated on the effective date of the individual permit.
H-7. General Permit Modification, Revocation and Reissuance,or Termination
The issuance of this General Permit does not prohibit the Permit Issuing Authority from
reopening and modifying the General Permit, revoking and reissuing the General Permit, or
terminating the General Permit as allowed by the laws, rules,and regulations contained in
Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code,Subchapter 2H .0100; and North Carolina General Statute 143-215.1 et
al. After public notice and opportunity for a hearing,the General Permit may be terminated
for cause.The filing of a request for a General Permit modification,revocation and
reissuance, or termination does not stay any General Permit condition.The Certificate of
Coverage shall expire when the General Permit is terminated.
H-8. Certificate of Coverage Actions
Coverage under the General Permit may be modified,revoked and reissued,or terminated
for cause.The notification of planned changes or anticipated noncompliance does not stay
any General Permit condition [40 CFR 122.41(f)].
H-9. Requirement to Report Incorrect Information
Where the permittee becomes aware that it failed to submit any relevant facts in a Notice of
Intent to be covered under this General Permit, or submitted incorrect information in that
Notice of Intent application or in any report to the Director, it shall promptly submit such
facts or information [40 CFR 122.41(1)(8)].
H-10. Waivers from Electronic Reporting
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to
the facility being physically located in an area where less than 10 percent of the households
have broadband access,then a temporary waiver from the NPDES electronic reporting
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Permit No.NCG050000
requirements may be granted and discharge monitoring data may be submitted on paper
DNIR forms or alternative forms approved by the Director. See the following paragraph for
information on how to request a waiver from electronic reporting.
The permittee may seek a temporary electronic reporting waiver from DEMLR. To obtain an
electronic reporting waiver,a permittee must first submit an electronic reporting waiver
request to DEMLR. Requests for temporary electronic reporting waivers must be submitted
in writing to DEMLR for written approval at least sixty(60) days prior to the date the facility
would be required under this permit to begin submitting monitoring data and reports. The
duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such
time,monitoring data and reports shall be submitted electronically to DEMLR unless the
permittee re-applies for and is granted a new temporary electronic reporting waiver by
DEMLR. Approved electronic reporting waivers are not transferrable. Only permittees with
an approved reporting waiver request may submit monitoring data and reports on paper to
DEMLR for the period that the approved reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are
found on the following web page: https://deq.nc.gov/about/divisionslwater-
resources/edmr
H-11. Annual Fee Requirements
The permittee must pay the annual fee within 30 (thirty) days after being billed by DEMLR.
Failure to pay the fee in timely manner in accordance with 15A NCAC 21-1 .0105(b)(2) may
cause DEMLR to initiate action to revoke coverage under the General Permit.
H-12. Flow Measurements
Where required,appropriate flow measurement devices and methods consistent with
accepted scientific practices shall be selected and used to ensure the accuracy and reliability
of measurements of the volume of monitored discharges.
H-13. Test Procedures
Test procedures for the analysis of pollutants shall conform to the EMC regulations
published pursuant to NCGS 143-215.63 et. seq,the Water and Air Quality Reporting Acts,
and to regulations published pursuant to Section 304(g), 33 USC 1314,of the Federal Water
Pollution Control Act,as Amended,and Regulation 40 CFR 136.
To meet the intent of the monitoring required by this General Permit,all test procedures
must produce minimum detection and reporting levels and all data generated must be
reported down to the minimum detection or lower reporting level of the procedure. If no
approved methods are determined capable of achieving minimum detection and reporting
levels below the General Permit discharge requirements,then the most sensitive (method
with the lowest possible detection and reporting level) approved method must be used.
H-14. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308
of the Federal Act, 33 USC 1318,all reports prepared in accordance with the terms shall be
available for public inspection at the offices of DEMLR. As required by the Act,analytical
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Permit No.NCG050000
data shall not be considered confidential. Knowingly making any false statement on any
such report may result in the imposition of criminal penalties as provided for in NCGS 143-
215.613 or in Section 309 of the Federal Clean Water Act.
H-15. Action Plan Approval and Submittal
Action Plan approval or disapproval shall be issued by DEMLR's Regional Office based on
the reviewers best professional judgement.Approval may be contingent upon a site
inspection and evaluation of the feasibility of the proposed action steps.
Once notified of plan approval,the permittee shall immediately implement and document
all actions taken as part of the approved action plan.
If the permittee is notified that the submitted Action Plan has been disapproved,a revised
action plan shall be submitted to the regional office no later than 30 days of being notified of
plan disapproval. Plan disapproval may be communicated through mail,phone,or
electronically. If implementation of an approved Action Plan does not result in adequate
improvement of monitoring results of the proceeding 12-month period,a revised Action
Plan shall be submitted for review and approval.
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Permit No.NCG050000
PART I: COMPLIANCE AND LIABILITY
I-1. Compliance Schedule
The permittee shall comply with Limitations and Controls specified for stormwater
discharges in accordance with the following schedule:
(a) Existing Facilities already operating but applying for permit coverage for the first
time:The Stormwater Pollution Prevention Plan shall be developed and
implemented within 12 months of the effective date of the Certificate of Coverage
and updated thereafter on an annual basis. Secondary containment,as specified in
Part B-7 of this General Permit,shall be accomplished within 12 months of the
effective date of the issuance of the Certificate of Coverage.
(b) New Facilities applying for coverage for the first time: The Stormwater Pollution
Prevention Plan shall be developed and implemented prior to the beginning of
discharges from the operation of the industrial activity and be updated thereafter
on an annual basis.Secondary containment,as specified in Part B of this General
Permit shall be accomplished prior to the beginning of discharges from the
operation of the industrial activity.
(c) Existing facilities previously permitted and applying for renewal under this
General Permit:All requirements,conditions,limitations,and controls contained
in this permit(except new SWPPP elements in this permit renewal) shall become
effective immediately upon issuance of the Certificate of Coverage. New elements
of the Stormwater Pollution Prevention Plan for this permit renewal shall be
developed and implemented within 6 months of the effective date of this General
Permit and updated thereafter on an annual basis. Secondary containment,as
specified in Part B of this General Permit shall be accomplished prior to the
beginning of discharges from the operation of the industrial activity.
I-2. Duty to Comply
The permittee must comply with all conditions of this General Permit.Any permit
noncompliance constitutes a violation of the Clean Water Act(CWA) and is grounds for
enforcement action; for permit termination,revocation and reissuance,or modification; or
denial of a permit upon renewal application [40 CFR 122.41].
(a) The permittee shall comply with standards or prohibitions established under section
307(a) of the CWA for toxic pollutants within the time provided in the regulations
that establish these standards or prohibitions,even if the General Permit has not yet
been modified to incorporate the requirement[40 CFR 122.41].
(b) The CWA provides that any person who violates section[s] 301, 302,306,307,308,
318 or 405 of the Act,or any permit condition or limitation implementing any such
sections in a permit issued under section 402,or any requirement imposed in a
pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act,
is subject to a civil penalty not to exceed$37,500 per day for each violation [33 USC
1319(d) and 40 CFR 122.41(a)(2)].
(c) The CWA provides that any person who negligently violates sections 301,302, 306,
307, 308, 318,or 405 of the Act,or any condition or limitation implementing any of
such sections in a permit issued under section 402 of the Act,or any requirement
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Permit No.NCG050000
imposed in a pretreatment program approved under section 402(a)(3) or 402(b)(8)
of the Act,is subject to criminal penalties of$2,500 to $25,000 per day of violation,
or imprisonment of not more than 1 year,or both.In the case of a second or
subsequent conviction for a negligent violation,a person shall be subject to criminal
penalties of not more than$50,000 per day of violation,or by imprisonment of not
more than 2 years, or both [33 USC 1319(c)(1) and 40 CFR 122.41(a)(2)].
(d) Any person who knowingly violates such sections, or such conditions or limitations
is subject to criminal penalties of$5,000 to$50,000 per day of violation,or
imprisonment for not more than 3 years,or both. In the case of a second or
subsequent conviction for a knowing violation,a person shall be subject to criminal
penalties of not more than$100,000 per day of violation,or imprisonment of not
more than 6 years,or both [33 USC 1319(c)(2) and 40 CFR122.41(a)(2)].
(e) Any person who knowingly violates section 301,302,303,306, 307,308,318 or 405
of the Act,or any permit condition or limitation implementing any of such sections
in a permit issued under section 402 of the Act,and who knows at that time that he
thereby places another person in imminent danger of death or serious bodily injury,
shall,upon conviction,be subject to a fine of not more than$250,000 or
imprisonment of not more than 15 years,or both. In the case of a second or
subsequent conviction for a knowing endangerment violation,a person shall be
subject to a fine of not more than$500,000 or by imprisonment of not more than 30
years,or both.An organization,as defined in section 309(c)(3)(B)(iii) of the CWA,
shall,upon conviction of violating the imminent danger provision,be subject to a
fine of not more than$1,000,000 and can be fined up to $2,000,000 for second or
subsequent convictions [40 CFR 122.41(a)(2)].
(f) Under state law,a civil penalty of not more than$25,000 per violation may be
assessed against any person who violates or fails to act in accordance with the terms,
conditions,or requirements of a permit[North Carolina General Statutes § 143-
215.6A].
(g) Any person may be assessed an administrative penalty by the Administrator for
violating section 301,302, 306,307, 308, 318 or 405 of this Act,or any permit
condition or limitation implementing any of such sections in a permit issued under
section 402 of this Act.Administrative penalties for Class I violations are not to
exceed$16,000 per violation,with the maximum amount of any Class I penalty
assessed not to exceed$37,500. Penalties for Class 11 violations are not to exceed
$16,000 per day for each day during which the violation continues,with the
maximum amount of any Class 11 penalty not to exceed$177,500. [33 USC
1319(g)(2) and 40 CFR 122.41(a)(3)].
I-3. Duty to Mitigate
The permittee shall take all reasonable steps to minimize or prevent any discharge in
violation of this General Permit which has a reasonable likelihood of adversely affecting
human health or the environment[40 CFR 122.41(d)].
I-4. Civil and Criminal Liability
Except as provided in Part C-6 of this General Permit regarding bypassing of stormwater
control facilities,nothing in this permit shall be construed to relieve the nermittee from any
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Permit No.NCG050000
responsibilities,liabilities,or penalties for noncompliance pursuant to NCGS 143-215.3,143-
215.6,or Section 309 of the Federal Act, 33 USC 1319. Furthermore,the permittee is
responsible for consequential damages,such as fish kills,even though the responsibility for
effective compliance may be temporarily suspended.
I-5. Oil and Hazardous Substance Liability
Nothing in this General Permit shall be construed to preclude the institution of any legal
action or relieve the permittee from any responsibilities,liabilities,or penalties to which the
permittee is or may be subject to under NCGS 143-215.75 et seq.or Section 311 of the
Federal Act. 33 USC 1321.
I-6. Property Rights
The issuance of this General Permit does not convey any property rights in either real or
personal property,or any exclusive privileges,nor does it authorize any injury to private
property or any invasion of personal rights,nor any infringement of Federal,State, or local
laws or regulations [40 CFR 122.41(g)].
I-7. Severability
The provisions of this General Permit are severable,and if any provision of this General
Permit,or the application of any provision of this General Permit to any circumstances,is
held invalid,the application of such provision to other circumstances,and the remainder of
this General Permit,shall not be affected thereby [NCGS 15013-23].
I-8. Duty to Provide Information
The permittee shall furnish to the Permit Issuing Authority,within a reasonable time,any
information which the Permit Issuing Authority may request to determine whether cause
exists for modifying,revoking and reissuing,or terminating the General Permit issued
pursuant to this General Permit or to determine compliance with this General Permit.The
permittee shall also furnish to the Permit Issuing Authority upon request,copies of records
required to be kept by this General Permit [40 CFR 122.41(h)].
1-9. Penalties for Tampering
The Clean Water Act provides that any person who falsifies,tampers with,or knowingly
renders inaccurate,any monitoring device or method required to be maintained under this
General Permit shall,upon conviction,be punished by a fine of not more than$10,000 per
violation,or by imprisonment for not more than two years per violation,or by both. If a
conviction of a person is for a violation committed after a first conviction of such person
under this paragraph,punishment is a fine of not more than$20,000 per day of violation,or
by imprisonment of not more than 4 years,or both [40 CFR 122.41].
I-10. Penalties for Falsification of Reports
The Clean Water Act provides that any person who knowingly makes any false statement,
representation,or certification in any record or other document submitted or required to
be maintained under this General Permit,including monitoring reports or reports of
compliance or noncompliance shall,upon conviction,be punished by a fine of not more than
$10,000 per violation,or by imprisonment for not more than two years per violation,or by
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Permit No.NCG050000
both [40 CFR 122.41].
I-11. Onshore or Offshore Construction
This General Permit does not authorize or approve the construction of any onshore or
offshore physical structures or facilities or the undertaking of any work in any navigable
waters.
I-12. Duty to Reapply
Permittees covered by this General Permit need not submit a new Notice of Intent(NOI) nor
renewal request unless so directed by DEMLR. If DEMLR chooses not to renew this General
Permit,the permittee will be notified to submit an application for an individual permit [15A
NCAC 02H .0127(e)].
I-13. Inspection and Entry
The permittee shall allow the Director, or an authorized representative (including an
authorized contractor acting as a representative of the Director), or in the case of a facility
which discharges through a municipal separate storm sewer system,an authorized
representative of a municipal operator or the separate storm sewer system receiving the
discharge,upon the presentation of credentials and other documents as may be required by
law,to:
(a) Enter upon the permittee's premises where a regulated facility or activity is located
or conducted, or where records must be kept under the conditions of this General
Permit;
(b) Have access to and copy,at reasonable times,any records that must be kept under
the conditions of this General Permit;
(c) Inspect at reasonable times any facilities,equipment(including monitoring and
control equipment),practices,or operations regulated or required under this
General Permit; and
(d) Sample or monitor at reasonable times,for the purposes of assuring permit
compliance or as otherwise authorized by the Clean Water Act,any substances or
parameters at any location [40 CFR 122.41(i)].
I-14. Need to Halt or Reduce Not a Defense
It shall not be a defense for a permittee in an enforcement action that it would have been
necessary to halt or reduce the permitted activity in order to maintain compliance with the
condition of this General Permit [40 CFR 122.41(c)].
Page 29 of 35

Permit No.NCG050000
PART J: DEFINITIONS
Additional definitions for the NPDES Program may be found in federal rule at 40 CFR Part 122.2
Act
See Clean Water Act.
Adverse Weather
Weather conditions are those that are dangerous or create inaccessibility for personnel,
such as local flooding,high winds,or electrical storms,or situations that otherwise make
sampling impractical. When adverse weather conditions prevent the collection of samples
during the sample period,the permittee must take a substitute sample or perform a visual
assessment during the next qualifying storm event.Documentation of an adverse event
(with date,time, and written narrative) and the rationale must be included with your
SWPPP records.Adverse weather does not exempt the permittee from having to file a
monitoring report in accordance with the sampling schedule.Adverse events and failures to
monitor must also be explained and reported on the relevant DMR.
Allowable Non-Stormwater Discharges
This General Permit regulates stormwater discharges.Non-stormwater discharges which
shall be allowed in the stormwater conveyance system include:
(a) All other discharges that are authorized by a non-stormwater NPDES permit.
(b) Uncontaminated groundwater,foundation drains,air-conditioner condensate without
added chemicals, springs,discharges of uncontaminated potable water,waterline and fire
hydrant flushings,water from footing drains,irrigation waters, flows from riparian
habitats and wetlands.
(c) Discharges resulting from fire-fighting or, or emergency shower oreye wash as a result of
use in the event of an emergency.
Best Management Practices(BMPs)
Measures or practices used to reduce the amount of pollution entering surface waters.
BMPs may take the form of a process,activity,or physical structure. More information on
BMPs can be found at: https://www.epa.gov/npdes/national-menu-best-management-
practices-bmps-stormwater#edu.
Bulk Storage for Liquid Materials
Liquid raw materials,in-process liquids and reactants, manufactured products,waste
materials or by-products contained in a single above ground container,tank,or vessel
having a capacity of greater than 660 gallons or contained in multiple above ground
containers,tanks,or vessels having a total combined capacity of greater than 1,320 gallons.
Bypass
The known diversion of stormwater from any portion of a control facility including the
collection system, or the diversion of waste streams from any portion of a treatment facility
Page 30 of 35

Permit No.NCG050000
including the collection system,which is not a designed or established operating mode for
the facility.
Certificate of Coverage(COC)
The cover sheet which accompanies a general permit upon issuance and lists the facility
name,location,receiving stream,river basin,effective date of coverage under the general
permit and is signed by the Director.
Clean Water Act
The Federal Water Pollution Control Act,also known as the Clean Water Act(CWA), as
amended, 33 USC 1251,et.seq.
Division
The Division of Energy,Mineral,and Land Resources, Department of Environmental Quality
(DEQ),formerly the Department of Environment and Natural Resources.
Director
The Director of the Division of Energy, Mineral, and Land Resources,the permit issuing
authority.
EMC
The North Carolina Environmental Management Commission.
Grab Sample
An individual sample collected instantaneously.Grab samples that will be analyzed
(analytically or qualitatively) should be taken within the first 30 minutes of discharge.
Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the Clean
Water Act.
High Quality Waters(HQW)
Supplemental classification intended to protect waters which are rated excellent based on
biological and physical/chemical characteristics through Division monitoring or special studies, or
HQW by definition:
1.WS-I,
2.WS-I1,
3. SA(commercial shellfish),
4. ORW.
5. Primary Nursery Areas and other functional nursery areas designated by Marine Fisheries
Commission,or
6.Waters for which DWQ has received a petition for reclassification to either WS-1 or WS-II.
(15A NCAC 0213 .0200)
Page 31 of 35

Permit No.NCG050000
Impaired Water
A water that has one or more parameters (biological and/or chemical) that exceed water
quality standards.
Measurable Storm Event
A storm event that results in an actual discharge from the permitted site outfall.The
previous measurable storm event must have been at least 72 hours prior. The 72-hour
storm interval may not apply if the permittee is able to document that a shorter interval is
representative for local storm events during the sampling period, and obtains approval
from DEMLR's Regional Office.Two copies of this information and a written request letter
shall be sent to DEMLR's Regional Office.After authorization by DEMLR's Regional Office,a
written approval letter must be kept on site in the permittee's SWPPP.
Note:If a constant non-stormwater discharge is present at anygiven outfall, the above storm
interval requirement may not apply.
Municipal Separate Storm Sewer System(MS4)
A stormwater collection system within an incorporated area of local self-government such
as a city or town.
No Exposure
A condition of no exposure means that all industrial materials and activities are protected
by a storm resistant shelter or acceptable storage containers to prevent exposure to rain,
snow,snowmelt,or runoff. Industrial materials or activities include,but are not limited to,
material handling equipment or activities,industrial machinery,raw materials,
intermediate products,by-products,final products,or waste products. DEMLR's Regional
Office may grant a No Exposure Exclusion from NPDES stormwater permitting
requirements only if a facility complies with the terms and conditions described in 40 CFR
§122.26(g).
Notice of In tent(NOI)
The state application form which,when submitted to DEMLR,officially indicates the
facility's notice of intent to seek coverage under a general permit.
Outstanding Resource Water(ORW)
Supplemental classification intended to protect unique and special waters having excellent water
quality and being of exceptional state or national, ecological or recreational significance. To
qualify,waters must be rated Excellent by DWQ,and have one of the following outstanding
resource values:
(a) Outstanding fish habitat and fisheries,
(b) Unusually high level of water based recreation or potential for such kind of recreation,
(c) Some special designation such as N.C. Scenic/Natural River,or National Wildlife Refuge,
(d) Important component of state or national park or forest, or
(e) Special ecological or scientific significance (rare or endangered species habitat,research or
educational areas).
Page 32 of 35

Permit No.NCG050000
All ORWs are HQW by supplemental classification.
(15A NCAC 0213 .0200)
Permit Issuing Authority
The Director of the Division of Energy,Mineral,and Land Resources (see"Director" above).
Permittee
The owner or operator issued a Certificate of Coverage pursuant to this General Permit.
Point Source Discharge of Stormwater
Any discernible,confined and discrete conveyance including,but not specifically limited to,
any pipe, ditch,channel,conduit,well,or discrete fissure from which stormwater is or may
be discharged to waters of the State.
Primary Nursery Area(PNA)
Tidal saltwaters which provide essential habitat for the early development of commercially
important fish and shellfish and are so designated by the Marine Fisheries Commission.
(15A NCAC 0213 .0200)
Representative Outfall Status(ROS)
When it is established that the discharge of stormwater runoff from a single outfall is
representative of the discharges at multiple outfalls, DEMLR's Regional Office may grant
representative outfall status. ROS allows the permiteee to perform analytical monitoring at a
reduced number ofoutfalls.
Secondary Containment
Spill containment for the contents of the single largest tank within the containment
structure plus sufficient freeboard to contain the 25-year. 24-hour storm event.
Section 313 Water Priority Chemical
A chemical or chemical category which:
(a) Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund
Amendments and Reauthorization Act(SARA) of 1986,also titled the Emergency Planning
and Community Right-to-Know Act(EPCRA) of 1986;
(b) Is present at or above threshold levels at a facility subject to SARA title 111,Section 313
reporting requirements; and
(c) Meets at least one of the following criteria:
• Is listed in appendix D of 40 CFR Part 122 on Table II (organic priority pollutants),Table
III (certain metals,cyanides,and phenols) or Table IV(certain toxic pollutants and
hazardous substances);
• Is listed as a hazardous substance pursuant to section 311(b)(2)(A) of the CWA at 40
CFR 116.4; or
• Is a pollutant for which EPA has published acute or chronic water quality criteria.
Severe Property Damage
Page 33 of 35

Permit No.NCG050000
Substantial physical damage to property, damage to the control facilities which causes them
to become inoperable,or substantial and permanent loss of natural resources which can
reasonably be expected to occur in the absence of a bypass. Severe property damage does
not mean economic loss caused by delays in production.
Significant Materials
Includes,but is not limited to: raw materials; fuels; materials such as solvents, detergents,
and plastic pellets; finished materials such as metallic products; raw materials used in food
processing or production; hazardous substances designated under section 101(14) of
CERCLA; any chemical the facility is required to report pursuant to section 313 of Title III of
SARA; fertilizers; pesticides; and waste products such as ashes,slag,and sludge that have
the potential to be released with stormwater discharges.
Significant Spills
Includes,but is not limited to: releases of oil or hazardous substances in excess of
reportable quantities under section 311 of the Clean Water Act(Ref: 40 CFR 110.3 and 40
CFR 117.3) or section 102 of CERCLA(Ref: 40 CFR 302.4).
Stormwater Control Measure(SCM)
A permanent structural device that is designed,constructed, and maintained to remove
pollutants from stormwater runoff by promoting settling or filtration; or to mimic the
natural hydrologic cycle by promoting infiltration,evapo-transpiration,post-filtration
discharge,reuse of stormwater, or a combination thereof.
Stormwater Discharge Outfall(SDO)
The point of departure of stormwater from a discernible, confined, or discrete conveyance,
including but not limited to,storm sewer pipes,drainage ditches,channels,spillways,or
channelized collection areas,from which stormwater flows directly or indirectly into waters
of the State.
Stormwater Runoff
The flow of water which results from precipitation and which occurs immediately following
rainfall or as a result of snowmelt.
Storm water Associated with Industrial Activity
The discharge from any point source which is used for collecting and conveying Stormwater
and which is directly related to manufacturing,processing, or raw material storage areas at
an industrial site. Facilities considered to be engaged in "industrial activities"include those
activities defined in 40 CFR 122.26(b)(14).The term does not include discharges from
facilities or activities excluded from the NPDES program.
Stormwater Pollution Prevention Plan (SWPPP)
A comprehensive site-specific plan which details measures and practices to reduce
Stormwater pollution and is based on an evaluation of the pollution potential of the site.
Page 34 of 35

Permit No.NCG050000
Total Maximum Daily Load(TMDL)
TMDLs are written plans for attaining and maintaining water quality standards,in all
seasons,for a specific water body and pollutant.A list of approved TMDLs for the state of
North Carolina can be found at https://deq.nc.gov/about/divisions/water-
resources/planning/modeling-assessment/tmdls.
Toxic Pollutant
Any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act.
Trout(waters)
Supplemental classification intended to protect freshwaters for natural trout propagation and
survival of stocked trout on a year round basis.This is not the same as the N.C.Wildlife Resources
Commission's Designated Public Mountain Trout Waters (15A NCAC 0213.0200).
Upset
An exceptional incident in which there is unintentional and temporary noncompliance with
technology-based permit effluent limitations because of factors beyond the reasonable control of
the permittee. An upset does not include noncompliance to the extent caused by operational error,
improperly designed treatment or control facilities,inadequate treatment or control facilities,lack
of preventive maintenance,or careless or improper operation.
Vehicle Maintenance Activity
Vehicle rehabilitation,mechanical repairs,washing,sanding,painting,fueling,lubrication,
vehicle cleaning operations, or airport deicing operations.All cleaning operations shall be
performed,where feasible,indoors where there is a connection to the sanitary sewer
system or where wash water can be collected and properly treated,recycled,or otherwise
disposed of.
Visible Sedimentation
Solid particulate matter,both mineral and organic,that has been or is being transported by
water,air,gravity,or ice from its site of origin which can be seen with the unaided eye.
10 year,24-hour Storm Event
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the
average,once in 10 years.
25 year,24-hour Storm Event
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the
average,once in 25 years.
Page 35 of 35

APPENDIX B
NON-STORMWATER EVALUATION REPORT AND CERTIFICATION

NON-STORMWATER EVALUATION REPORT AND CERTIFICATION
The stormwater drainage system in this SWPPP must be tested or evaluated for the presence of'non-
stormwater discharges annually. Results of these tests/evaluations are as follows:
Outfall 001
Date of Inspection: Time:
Visual Inspection by(printed name): Signature:
Observations/Results:
Are there any non-storm water discharges? ❑ Yes ❑ No
Uncontaminated groundwater? ❑ Yes ❑ No
Foundation drains? ❑ Yes ❑ No
HVAC condensate without added chemicals? ❑ Yes ❑ No
Springs? ❑ Yes ❑ No
Uncontaminated potable water? ❑ Yes ❑ No
Waterline and fire hydrant flushings? ❑ Yes ❑ No
Water from footing drains? ❑ Yes ❑ No
Irrigation waters? ❑ Yes ❑ No
Flows from riparian habitats and wetlands? ❑ Yes ❑ No
Fire-fighting? ❑ Yes ❑ No
Emergency shower or eye wash? ❑ Yes ❑ No
Is the discharge authorized under this permit? ❑ Yes ❑ No
Are significant structural changes required to eliminate the discharge? ❑ Yes ❑ No
Notes:
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. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for
knowing violations.
(Responsible Corporate Officer Signature) (Date)
(Printed Name) (Title)

NON-STORMWATER EVALUATION REPORT AND CERTIFICATION
The stormwater drainage system in this SWPPP must be tested or evaluated for the presence of'non-
stormwater discharges annually. Results of these tests/evaluations are as follows:
Outfall 002
Date of Inspection: Time:
Visual Inspection by(printed name): Signature:
Observations/Results:
Are there any non-storm water discharges? ❑ Yes ❑ No
Uncontaminated groundwater? ❑ Yes ❑ No
Foundation drains? ❑ Yes ❑ No
HVAC condensate without added chemicals? ❑ Yes ❑ No
Springs? ❑ Yes ❑ No
Uncontaminated potable water? ❑ Yes ❑ No
Waterline and fire hydrant flushings? ❑ Yes ❑ No
Water from footing drains? ❑ Yes ❑ No
Irrigation waters? ❑ Yes ❑ No
Flows from riparian habitats and wetlands? ❑ Yes ❑ No
Fire-fighting? ❑ Yes ❑ No
Emergency shower or eye wash? ❑ Yes ❑ No
Is the discharge authorized under this permit? ❑ Yes ❑ No
Are significant structural changes required to eliminate the discharge? ❑ Yes ❑ No
Notes:
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. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for
knowing violations.
(Responsible Corporate Officer Signature) (Date)
(Printed Name) (Title)

NON-STORMWATER EVALUATION REPORT AND CERTIFICATION
The stormwater drainage system in this SWPPP must be tested or evaluated for the presence of'non-
stormwater discharges annually. Results of these tests/evaluations are as follows:
Outfall 003
Date of Inspection: Time:
Visual Inspection by(printed name): Signature:
Observations/Results:
Are there any non-storm water discharges? ❑ Yes ❑ No
Uncontaminated groundwater? ❑ Yes ❑ No
Foundation drains? ❑ Yes ❑ No
HVAC condensate without added chemicals? ❑ Yes ❑ No
Springs? ❑ Yes ❑ No
Uncontaminated potable water? ❑ Yes ❑ No
Waterline and fire hydrant flushings? ❑ Yes ❑ No
Water from footing drains? ❑ Yes ❑ No
Irrigation waters? ❑ Yes ❑ No
Flows from riparian habitats and wetlands? ❑ Yes ❑ No
Fire-fighting? ❑ Yes ❑ No
Emergency shower or eye wash? ❑ Yes ❑ No
Is the discharge authorized under this permit? ❑ Yes ❑ No
Are significant structural changes required to eliminate the discharge? ❑ Yes ❑ No
Notes:
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. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for
knowing violations.
(Responsible Corporate Officer Signature) (Date)
(Printed Name) (Title)

NON-STORMWATER EVALUATION REPORT AND CERTIFICATION
The stormwater drainage system in this SWPPP must be tested or evaluated for the presence of non-
stormwater discharges annually. Results of these tests/evaluations are as follows:
Outfall 004
Date of Inspection: Time:
Visual Inspection by(printed name): Signature:
Observations/Results:
Are there any non-storm water discharges? ❑ Yes ❑ No
Uncontaminated groundwater? ❑ Yes ❑ No
Foundation drains? ❑ Yes ❑ No
HVAC condensate without added chemicals? ❑ Yes ❑ No
Springs? ❑ Yes ❑ No
Uncontaminated potable water? ❑ Yes ❑ No
Waterline and fire hydrant flushings? ❑ Yes ❑ No
Water from footing drains? ❑ Yes ❑ No
Irrigation waters? ❑ Yes ❑ No
Flows from riparian habitats and wetlands? ❑ Yes ❑ No
Fire-fighting? ❑ Yes ❑ No
Emergency shower or eye wash? ❑ Yes ❑ No
Is the discharge authorized under this permit? ❑ Yes ❑ No
Are significant structural changes required to eliminate the discharge? ❑ Yes ❑ No
Notes:
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. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for
knowing violations.
(Responsible Corporate Officer Signature) (Date)
(Printed Name) (Title)

NON-STORMWATER EVALUATION REPORT AND CERTIFICATION
The stormwater drainage system in this SWPPP must be tested or evaluated for the presence of'non-
stormwater discharges annually. Results of these tests/evaluations are as follows:
Outfall 005
Date of Inspection: Time:
Visual Inspection by(printed name): Signature:
Observations/Results:
Are there any non-storm water discharges? ❑ Yes ❑ No
Uncontaminated groundwater? ❑ Yes ❑ No
Foundation drains? ❑ Yes ❑ No
HVAC condensate without added chemicals? ❑ Yes ❑ No
Springs? ❑ Yes ❑ No
Uncontaminated potable water? ❑ Yes ❑ No
Waterline and fire hydrant flushings? ❑ Yes ❑ No
Water from footing drains? ❑ Yes ❑ No
Irrigation waters? ❑ Yes ❑ No
Flows from riparian habitats and wetlands? ❑ Yes ❑ No
Fire-fighting? ❑ Yes ❑ No
Emergency shower or eye wash? ❑ Yes ❑ No
Is the discharge authorized under this permit? ❑ Yes ❑ No
Are significant structural changes required to eliminate the discharge? ❑ Yes ❑ No
Notes:
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. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for
knowing violations.
(Responsible Corporate Officer Signature) (Date)
(Printed Name) (Title)

APPENDIX C
SPRP RESPONSIBLE PERSONS
SPILL REPORT FORM
AND
LIST OF SIGNIFICANT SPILLS

SPILL PREVENTION AND RESPONSE PROCEDURES (SPRP)
RESPONSIBLE PERSONS
The EHS Engineer is designated to act as the Pollution Prevention Team (PPT) leader of the
Stormwater Pollution Prevention Plan (SWPPP) and is the primary responsible party for
implementing the Spill Prevention and Response Procedures (SPRP). Additional personnel have
been delegated appropriate authority to commit the necessary resources to implement the Plan and
can assume these responsibilities in absence of the PPT leader, such that a responsible party will
be onsite at all times during facility operations that have the potential to contaminate stormwater
runoff through spills or exposure to materials associated with facility operations. These
responsible parties have reviewed this Plan and indicate acceptance of these responsibilities by
signature below.
I hereby indicate that I have reviewed the SPRP in the SWPPP and understand my responsibility
in preventing and responding to spills in accordance with the requirements and procedures
described in the SPRP.
Responsible Persons
Name/Emergency Title/Role/Plant/Shift Signature&Date
Phone Number/E-Mail
Address
Ariel Smith/ EHS Engineer/PPT
336-660-9616/ Leader/Primary Facility Signature
ariel.smith(a,lydech.com Response Coordinator/Plants
1,2&3/Shift 1
Date
Conrad Moss/ EHS Manager/
336-468-5284/ Alternate Facility Response Signature
cmossklydech.com Coordinator/Plants
1,2&3/Shift 1
Date
Nelson Mullis/ EHS Coordinator/
336-469-4138/ Alternate Facility Response Signature
nmullis(cr�,lydech.com Coordinator/Plants
1,2&3/Shift 1
Date
Randy Allred/ EHS Coordinator/
743-433-0267/ Alternate Facility Response Signature
rallredklydech.com Coordinator/Plants
1,2&3/Shift 1
Date
Nicholas O'Donnell/ TPM Technician/
Signature
336-244-6283/
Alternate Facility Response
nodonnellklydech.com Coordinator/Plant 1/Shift 1
Date

Responsible Persons
Name/Emergency Title/Role/Plant/Shift Signature&Date
Phone Number/E-Mail
Address
William Faircloth/336- Controls Technician/
Signature
452-9760/
Alternate Facility Response
wfaircloth&lydech.com Coordinator/Plant 1/Shift 3
Date
David Settle/ Controls Technician/
Signature
336-618-2345/
Alternate Facility Response
dsettle(c-r�,lydech.com Coordinator/Plant 2/Shift 2
Date
Dillon Adams/ TPM Technician/
336-692-2380/ Alternate Facility Response Signature
dadams674klydech.com Coordinator/Plant 2/Shift 3
Date
Daniel Dupree/ Facilities Technician/
Signature
336-467-9061/
Alternate Facility Response
ddupree(klydech.com Coordinator/Plant 3/Shift 1
Date
Robert Meyerhofer/ TPM Technician/
Signature
336-452-4500/
Alternate Facility Response
rmeyerhoferklydech.com Coordinator/Plant 2/Shift 2
Date
Davey Johnson/ TPM Technician/
Signaturc
336-452-1036/
Alternate Facility Response
diohnson&lydech.com Coordinator/Plant 3/Shift 1
Date
Signaturc
Date
Signature
Date

SPILL REPORT FORM
RECORD OF PETROLEUM OR CHEMICAL PRODUCT DISCHARGE,
SPILLAGE OR RELEASE
When did the incident occur? Date Time
Where did the incident occur?
How did the incident occur?
Under whose control was the chemical or petroleum product at the time of the incident?
Name: Title:
Phone #:
Owner or Operator of the property onto which the spill occurred?
Company Name:
Address:
Phone #
Who and when was the incident verbally reported? (Check multiple if needed)
❑ EHS / Management
Date Time
❑Emergency Spill Cleanup Contractor
Date Time
❑Local
Date Time
❑Federal/State
Date Time
Who reported the incident and who were they representing?
Name: Title:
Address:
Phone #:

SPILL REPORT FORM CONTINUED
Chemicals or petroleum products released,spilled,or discharged? Give an exact description of materials involved,
including chemical names, percent concentrations,trade names,etc. If the chemicals are extremely Hazardous
Substances or CERCLA hazardous substances,they must be identified and include the reportable quantity(RQ).
Please attach a Material Safety Data Sheet(MSDS)for each chemical involved. Quantities of chemicals released,
spilled or discharged to each environmental medium (air,surface water, soil, groundwater)?
Chemical or Petroleum Product Name:
Quantity Released:
Circle medium(s): Air Surface Water Sewer Soil Groundwater
Description of incident:
Any of the chemical travel beyond the property line? (Note: groundwater is beyond the
property line.)
Actions taken to respond to release or spill?
Attach additional sheets if necessary
Any injuries as a result of the incident?
Name:
Address:
Phone #
Injury Sustained:
Any anticipated health risks, acute or chronic, associated with the release of this
chemical or medical advice that should be communicated?
Was incident completely cleaned up by the time this report was submitted? If not, what
anticipated remedial actions are pending?
I hereby affirm that the foregoing statement is true to the best of my knowledge.
Signature Title Date
Print Name Telephone Number

LIST OF SIGNIFICANT SPILLS
Location, Date, and Time of Material Estimated Media Affected Corrective Action
Spill Released Quantity of
Release
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:
Location:
Date: Time:

APPENDIX D
INVENTORY OF SOLVENTS

INVENTORY OF SOLVENTS
The inventory of solvents which have been present onsite for the past three years is summarized
in the table below. Quantities are typical maximum amounts. This list must be updated annually
(if significant changes).
Typical Max
Solvent Wher Ty Weight
Name a Used Onsite Components CAS No.
(gallons)
7500-RNO Metals 4 to 8 x 55-gal Isoparaffinic Hydrocarbon 68551-17-7 50-80
Hydrocarbon Plant 2 Drums
Solvent (220—440) Aliphatic Naphtha 68742-47-8 10-40
Vanishing Oil
A-155-A Fibers 2 to 8 x 5-gal Isoparaffinic Hydrocarbon 64742-48-9 >95
Multipurpose Plant 1 Jugs(10—40)
Lubricant

APPENDIX E
QUARTERLY FACILITY INSPECTION CHECKLIST

QUARTERLY FACILITY INSPECTION CHECKLIST
Inspector: Date:
Signature:
BMP Status Actions Taken/Corrective
(Yes/No/NA) Action Needed
Good Housekeeping
1. Floor and ground surfaces are clean and dry?
2. Garbage and wastes are picked up regularly?
3. Containers,drums, and bags are stored away from
traffic?
4. Containers are stacked according to manufacturers'
directions?
5. Hazardous materials are clearly marked?
6. Driveways/access roads are free of debris?
Preventive Maintenance
1. Are Preventative Maintenance inspections and
associated recordkeeping(PMs)being completed in
accordance with manufacturer recommendations?
2. Is exterior equipment free of visual indications of
leaks,wear, or damage that could impact stormwater
quality?
Spill Prevention and Response
1. Residues from any previous spills have been
properly cleaned up?
2. All spill response equipment cleaned or replaced?
3. Spill response/cleanup materials inventory adequate
and accessible?
4. All scrap metal is contained in non-leaking, covered
dumpsters/bins?
5. Scrap metal areas free of oil leaks/stains?
6. Scrap metal areas free of metallic debris?
7. Tanks/drums/totes in good condition and within
adequate secondary containment?
Sediment and Erosion Control
1. Ground cover in good condition?
2. Gravel filters and rip rap in good condition?
Runoff Management
1. Conveyances in good condition?
2. Debris cleared from conveyances?
3. Diversionary structures in good condition?
Retention Ponds
1. Ponds free of debris/trash?
2. No evidence of pollutants in ponds?
3. Banks and vegetation in good condition?
Outfalls
1. Outfalls free of debris and not blocked?
2. Outfall areas not eroded and in good condition?

APPENDIX F
RECORD OF TRAINING

RECORD OF TRAINING
SWPPP
Location:
Date:
Conducted By:
The following items were discussed at the meeting (check all that apply):
❑ SWPPP ❑ Solvent Management
❑ General Stormwater Awareness ❑ Used Battery Management
❑ Spill Response Training ❑ Other(describe)
❑ Used Oil Management
Employees Received Training:
Printed Name Signature
Training records must be kept for at least five (5) years.

APPENDIX G
SWPPP ANNUAL REVIEW AND UPDATE FORMS
PLAN REVIEW,UPDATE,AND AMENDMENT RECERTIFICATION FORM
RECORD OF SWPPP AMENDMENTS
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)/SWPPP ANNUAL
UPDATE DATA REVIEW FORM

PLAN REVIEW, UPDATE,AND AMENDMENT RECERTIFICATION FORM
In accordance with requirements of the NPDES General Permit No. NCG050000, this SWPPP
shall be amended whenever there is a change in design, construction, operation, site drainage,
maintenance, or configuration which has a significant effect on the potential for the discharge of
pollutants to surface waters. All aspects of this SWPPP shall be reviewed and updated on an annual
basis. The annual update shall include:
(a) An updated list of significant spills or leaks of pollutants for the previous three(3)years,or
the notation that reportable spills have not occurred(Section 8.4 and Appendix C);
(b) A written recertification that the stormwater outfalls have been evaluated for the presence of
non-stormwater discharges (Section 5.0 and Appendix B);
(c) A documented re-evaluation of the effectiveness of the Best Management Practices (BMPs)
listed in the BMP Summary(Section 6.0, Table 6-1);
(d) An annually updated and quantified inventory of solvents present onsite during the
previous three years if significant changes (Section 9.0 and Appendix D);
(e) A statement that annual training requirements were met in the past year(Section 11.0 and
Appendix F); and
(f) A review and comparison of sample analytical data to benchmark values over the past year,
including a discussion about Tiered Response status (DEQ Annual Summary Data
Monitoring Report(DMR)/SWPPP Annual Update Data Review Form).
The annual update shall be documented with the printed name,date,and signature of the individual
performing the review, as well as a description of the changes necessary to update the SWPPP,
and kept with the Plan.
This amendment/review is being conducted on the date of
I certify that I have verified the above update items (a)through(f), the BMPs listed in Section
6.0 are deemed reasonably effective, and annual training requirements were met in the past year.
"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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature:
Name:
Title:
Date:

RECORD OF SWPPP AMENDMENTS
Revision Reviewer Date Amendments
A B. Thomson 10/06/2010 Initial Issue
Stormwater management inspection results,
B S. Hannah/B. Thomson 1/20/2011 causes,and actions taken. See attachment
Revision B.
C S. Hannah/B. Thomson 11/11/2011 Annual Review and Update
D S. Hannah/B. Thomson 2/7/2012 Annual Review and Update
E J. Peacock 9/13/2012 Required changes for personnel changes
F P. Rahn 5/21/2013 Required changes for personnel and updated Tier
1 Responses
G P. Rahn 3/27/2014 Issued Stormwater Certificate of Coverage
(NCG050419)under General Permit NCG050000
H P. Rhan 9/18/2014 Required changes for personnel changes
I E. Evans 9/18/2014 Changes made for personnel changes, changes
for HVL campus construction TBP June 16'
Modifications for personnel changes,building
J P. Rahn 5/3/2016 expansion for HV Campus, and the addition of
two new outfalls
Modification for new Metals office building and
K P. Rahn 8/7/2017 some personnel and telephone number
modifications
L P. Rahn 10/2/2018 Addition of oil storage areas and personnel
modifications
M B. Smith 12/14/2018 Added diesel fire pump and two used oil tanks in
Plant 2
N B. Smith 9/16/2019 Changed verbiage to past tense in certain
locations. Added plastic totes.
Reformatted and updated to reflect June 1,2023
O M. Cramer May 2024 General Permit revision and current contact
information.

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SWPPP Annual Update DATA REVIEW FORM
Calendar Year
Individual NPDES Permit No. NCS❑❑❑❑❑❑ or
Certificate of Coverage (COC) No. NCG❑❑o ❑0 ❑❑i ❑
This monitoring report summary of the calendar year should be kept on We on-site with the facility SPPP.
Facility Name: Lydech Thermal Acoustical Inc.
County: Yadkin
Phone Number: ( 336 )604-5287 Total no. of SDOs monitored
Outfall No. 001
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
Parameter, (units)
Total TSS pH COD Non-Polar Oil
Rainfall, (mg/L) (Standard Units) (mg/L) & Grease
inches (mg/L)
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SWU-264 - Generic Annual DMR
Last revised 610112018

Additional Outfall Attachment
Outfall No. 002
Is this outfall currently in Tier 2 (monitored monthly)? Yes❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
Parameter, (units)
Total TSS pH COD Non-Polar Oil
Rainfall, (mg/L) (Standard Units) (mg/L) & Grease
inches (mg/L)
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SWU-264 - Generic Annual DMR
Last revised 610112018

Additional Outfall Attachment
Outfall No. 003
Is this outfall currently in Tier 2 (monitored monthly)? Yes❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes No
Parameter, (units)
Total TSS pH COD Non-Polar Oil
Rainfall, (mg/L) (Standard Units) (mg/L) & Grease
inches (mg/L)
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SWU-264 - Generic Annual DMR
Last revised 610112018

Additional Outfall Attachment
Outfall No. 004
Is this outfall currently in Tier 2 (monitored monthly)? Yes❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes No
Parameter, (units)
Total TSS pH COD Non-Polar Oil
Rainfall, (mg/L) (Standard Units) (mg/L) & Grease
inches (mg/L)
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SWU-264 - Generic Annual DMR
Last revised 610112018

Additional Outfall Attachment
Outfall No. 005
Is this outfall currently in Tier 2 (monitored monthly)? Yes❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes No
Parameter, (units)
Total TSS pH COD Non-Polar Oil
Rainfall, (mg/L) (Standard Units) (mg/L) & Grease
inches (mg/L)
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SWU-264 - Generic Annual DMR
Last revised 610112018

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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature
Date
For questions, contact your local Regional Office:
DEMLR Regional Office Contact Information:
Win ton�5ole
LL all
r �
a Its le
--— `7-
`1 F ett ille
Will ngton
ASHEVILLE REGIONAL OFFICE FAYETTEVILLE REGIONAL OFFICE MOORESVILLE REGIONAL OFFICE
2090 US Highway 70 225 Green Street 610 East Center Avenue/Suite 301
Swannanoa,NC 28778 Systel Building Suite 714 Mooresville,NC 28115
[phone] Fayetteville,NC 28301-5043 [phone]
[phone]
RALEIGH REGIONAL OFFICE WASHINGTON REGIONAL OFFICE WILMINGTON REGIONAL OFFICE
3800 Barrett Drive 943 Washington Square Mall 127 Cardinal Drive Extension
Raleigh, NC 27609 Washington,NC 27889 Wilmington,NC 28405-2845
[phone] [phone] [phone]
WINSTON-SALEM REGIONAL OFFICE CENTRAL OFFICE
450 Hanes Mill Rd, Suite 300 1617 Mail Service Center
Winston-Salem, NC 27105 Raleigh,NC 27699-1617
[phone] [phone]
SWU-264- Generic Annual DMR
Last revised 610112018

APPENDIX H
STORMWATER DISCHARGE OUTFALL (SDO)-QUALITATIVE MONITORING
REPORTS

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: NCG050000 or Certificate of Coverage No.: NCG050419
Facility Name: Lydech Thermal Acoustical Inc.
County: Yadkin Phone No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation(inches):
All permits require qualitative monitoring to be performed during a measurable storm event."
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period,and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature,I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 001 Structure(pipe,ditch,etc.): Ditch
Receiving Stream: Rocky Branch
Describe the industrial activities that occur within the outfall drainage area: Front parking lot and NW
corner of property.
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SWU-242,Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint
(light,medium, dark) as descriptors:
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,weak
chlorine odor,etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids inthe
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes Q No.
8. Is there an oil sheen in the stormwater discharge? QYes Q No.
9. Is there evidence of erosion or deposition at the outfall? Q Yes ®No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity,high solids,and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: NCG050000 or Certificate of Coverage No.: NCG050419
Facility Name: Lydech Thermal Acoustical Inc.
County: Yadkin Phone No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation(inches):
All permits require qualitative monitoring to be performed during a measurable storm event."
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period,and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature,I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 002 Structure(pipe,ditch,etc.): Concrete outlet pipe from Retention Pond#1.
Receiving Stream: Rocky Branch
Describe the industrial activities that occur within the outfall drainage area: Front parking lots,central
drainage ditch, and area draining to Retention Pond#1.
Page 1 of 2
SWU-242,Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint
(light,medium, dark) as descriptors:
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,weak
chlorine odor,etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids inthe
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes Q No.
8. Is there an oil sheen in the stormwater discharge? QYes Q No.
9. Is there evidence of erosion or deposition at the outfall? Q Yes ®No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity,high solids,and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: NCG050000 or Certificate of Coverage No.: NCG050419
Facility Name: Lydech Thermal Acoustical Inc.
County: Yadkin Phone No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation(inches):
All permits require qualitative monitoring to be performed during a measurable storm event."
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period,and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature,I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 003 Structure(pipe,ditch,etc.): Concrete outlet pipe from Retention Pond#3.
Receiving Stream: Rocky Branch
Describe the industrial activities that occur within the outfall drainage area: South parking lots,roadway,
and area draining to Retention Pond#3.
Page 1 of 2
SWU-242,Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint
(light,medium, dark) as descriptors:
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,weak
chlorine odor,etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids inthe
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes Q No.
8. Is there an oil sheen in the stormwater discharge? QYes Q No.
9. Is there evidence of erosion or deposition at the outfall? Q Yes ®No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity,high solids,and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: NCG050000 or Certificate of Coverage No.: NCG050419
Facility Name: Lydech Thermal Acoustical Inc.
County: Yadkin Phone No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation(inches):
All permits require qualitative monitoring to be performed during a measurable storm event."
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period,and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature,I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 004 Structure(pipe,ditch,etc.): Concrete outlet pipe south of roadway.
Receiving Stream: Rocky Branch
Describe the industrial activities that occur within the outfall drainage area: Metals building roof drains and
footprint and eastern parking lot.
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SWU-242,Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint
(light,medium, dark) as descriptors:
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,weak
chlorine odor,etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids inthe
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes Q No.
8. Is there an oil sheen in the stormwater discharge? QYes Q No.
9. Is there evidence of erosion or deposition at the outfall? Q Yes ®No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity,high solids,and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: NCG050000 or Certificate of Coverage No.: NCG050419
Facility Name: Lydech Thermal Acoustical Inc.
County: Yadkin Phone No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation(inches):
All permits require qualitative monitoring to be performed during a measurable storm event."
A"measurable storm event"is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period,and the permittee obtains approval from the local DEMLR
Regional Office.
By this signature,I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. 005 Structure(pipe,ditch,etc.): Concrete outlet pipe from Retention Pond#2.
Receiving Stream: Rocky Branch
Describe the industrial activities that occur within the outfall drainage area: Southeastern portion of property
that drains to Retention Pond#2.
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2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint
(light,medium, dark) as descriptors:
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,weak
chlorine odor,etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids inthe
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? Q Yes Q No.
8. Is there an oil sheen in the stormwater discharge? QYes Q No.
9. Is there evidence of erosion or deposition at the outfall? Q Yes ®No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity,high solids,and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report Supplement SWU-242A:
Guidance for Rating Stormwater Discharge
This supplement is intended only as a guide for rating visually observed parameters on a scale of
1-5. The inspector should use best professional judgment when characterizing the quality of
stormwater discharge. Also, the pictures included here do not necessarily show stormwater
discharges but serve to illustrate the characteristics described.
Clarity
(1 is clear, and 5 is very opaque or cloudy) �.
tom.
i
l
1 3 5
Floating Solids
(1 is no solids, and 5 is the surface covered
with floating solids or significant trash/debris)
I�
1 3 5
Page 1 of 10
SWU-242A-061808

Suspended Solids
(1 is no solids, and 5 is extremely muddy or clouded with other particles)
Vy
V
1 3 5
Tannic Water
Water naturally high in tannins in the eastern part of North Carolina may still have low amounts
of suspended solids and high clarity but not appear"clear"because of coloration. The examples
below will help rate discharges that must be observed in tannic waters.
Clear tannic water may look like tea or coffee,but waters that look more "milky" or like
"chocolate milk"have less clarity and higher suspended solids.
Suspended Solids/Clarity in waterbodies naturally high in tannins
OW
a
1 / 1 3 / 3 5 / 5
Page 2 of 10
SV,U-242A-061808

Example 1
4
t
'W
1. Outfall Description: Example 1 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: light brown
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor,etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 O 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 O 4 5
Page 3 of 10
SV,U-242A-061808

Example 1 of 4,cont.
Possibly small amount of
7. Is there any foam in the stormwater discharge? Yes No foam near pipe outlet.
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No Deposition of sand to the
right of pipe outlet.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe N/A
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Example 2
_ ` `
1. Outfall Description: Example 2 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Ditch
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: medium gray-green
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor, etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5 Note in lower right corner of picture,leaf
shadow is visible on the bottom of outlet.
Clarity decreases beyond outlet.
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 O 3 4 5 Floating solids observed here are mostly
tree debris that fell in after discharge.
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
Solids have settled out near outfall and are
1 O 3 4 5 more"dissolved"out in the water near the
top of the picture(where water appears
more gray). At the outlet,there are not any
swirls,clouds,or suspended particles.
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Example 2 of 4,cont.
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe Some displacement of gravel and sediment observed at the outfall. Also, lots of solids
that have settled. The water becomes more turbid/cloudy beyond the outfall(i.e.,clarity decreases).
Evidence of excessive solids being carried into receivin water.
This example illustrates how additional information in number 10. can be
important to characterizing stormwater discharge impacts.
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Example 3
1. Outfall Description: Example 3 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: medium brown/tan
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor,etc.): oily smell
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 O 5 Rating based on amount of scum/oil
covering surface,not tree debris.
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 0 4 5
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Example 3 of 4,cont.
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe Oil and scummy substance floating on top. Dead duck found.
Page 8 of 10
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Example 4
fix.
3. -
w
1. Outfall Description: Example 4 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: clear
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak
chlorine odor,etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
O 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
O 2 3 4 5
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Example 4 of 4,cont.
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe N/A
Page 10 of 10
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APPENDIX I
STORMWATER DISCHARGE MONITORING REPORTS (DMR)-ANALYTICAL
MONITORING

NCDEQ Division of Energy, Mineral and Land Resources
Stormwater Discharge Monitoring Report (DMR) Form for NCG050000
Apparel, Printing, Rubber, Etc.
Click here for instructions
Complete,sign,scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report(DMR) Upload form within
30 days of receiving sampling results. Mail the original,signed hard copy of the DMR to the appropriate DEMLR Regional Office.
Certificate of Coverage No. NCG05 050419 Person Collecting Samples:
Facility Name: Lydech Thermal Acoustical Inc. Laboratory Name:
Facility County: Yadkin Laboratory Cert. No.:
Discharge during this period: ❑Yes ❑ No (if no,skip to signature and date)
Has your facility implemented mandatory Tier response actions for any benchmark exceedances?❑Yes ❑ No
If so,which Tier(I, II,or III)?
Part A:Vehicle&Equipment Maintenance Areas—Benchmarks in(Red)
Parameter Parameter Outfall001 Outfall002 Outfall003 Outfall004 Outfall005
Code
N/A Receiving Stream Class WS-III WS-III WS-III WS-III WS-III
N/A Date Sample Collected MM/DD/YYYY
00400 pH in standard units(6.0-9.0 FW,
6.8-8.5 SW)
46529 24-Hour Rainfall in inches
00552 Non-Polar Oil&Grease in mg/L(15)
C0530 TSS in mg/L(100 or 50*)
00340 Chemical Oxygen Demand (COD)in
mg/L(120)
NCOIL New Motor/Hydraulic Oil Usage in
gal/month
Notes(optional):
"I certify by my signature below, 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 fines and imprisonment for
knowing violations."
Signature of Permittee or Delegated Authorized Individual Date

NCDEQ Division of Energy, Mineral and Land Resources
Discharge Monitoring Report (DMR) Instructions
Completing the DMR Form:
1. The total precipitation shall be recorded using data from an on-site rain gauge.
Unattended sites may be eligible for a waiver of the rain gauge requirement if
approved in writing by the applicable DEMLR Regional Office.
2. Sampling results for each parameter shall be compared to the benchmark values for
the appropriate receiving stream classification (listed in parentheses).
3. Monitoring results shall be in numerical format; below detection limit (BDL), non-
detect (ND) or other non-numerical formats are not acceptable. When results are
below detection limits, they must be reported in the format "<XX mg/L," where "XX" is
the numerical detection limit in mg/L. Where fecal coliform results (if applicable)
exceed the dilution upper limit, the result should be reported as ">XX".
4. For sampling periods with no discharge at any single outfall, the DMR report is still
required to be completed and submitted.
5. If the sampled storm event coincides with a known non-stormwater discharge that is
deemed permitted under 15A NCAC 02H .0106, then this shall be noted on the DMR in
the notes section.
6. If any pollutant is sampled more frequently than required by the general permit and at
a sampling location covered under the general permit, then per permitting
requirements, those sampling results must be submitted on a DMR.
Submitting the DMR Form:
Do not send paper DMRs to the Central Files.
1. Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit Data
Monitoring Report (DMR) Upload form within 30 days of receiving sampling results.
2. Mail the original, signed hard copy of the DMR to the appropriate DEMLR Regional Office.