NCS000107_Fact sheet binder_20240221

DEQ / DEMLR
FACT SHEET FOR NPDES INDUSTRIAL INDIVIDUAL
STORMWATER PERMIT DEVELOPMENT
Basic Information for Permit Issuance and Renewals:
Permit Writer/Date Brianna Young 2/19/2024
Permit Number NCS000107
Owner/Facility Name Hallstar Greensboro,LLC/Hallstar Industrial
Solution Company
2869 (325199; 325998)/All other basic organic
SIC(NAICS)Code/Category manufacturing; All other chemical product and
preparation manufacturing
Basin Name/Sub-basin number Cape Fear/03-06-02
Receiving Stream/HUC UT to South Buffalo Creek/030300020104
Stream Classification/Stream Segment WS-V;NSW/ 16-11-14-2
Is the stream impaired on 303 d list]? Yes; See Section 2 below
Any TMDLs? Yes; See Section 2 (below)
Any threatened and/or endangered species? See Section 2 below
Any compliance concerns? See Section 2 below
Any permit mods since lastpermit? No
New expiration date 3/31/2029
Comments on Draft Permit? See Section 6(below)
Section 1. Facility Activities and Process:
Hallstar Greensboro, LLC manufactures additives for plastics: flame retardants for plastics,plasticizers
for nylon, and orefins (used in paper and cosmetics). The facility previously manufactured phthalates.
Industrial activity occurring at the site is loading and unloading activities and is done in areas which
allows for containment and response. The loading and unloading of packaged materials in drums or
intermediate bulk containers is accomplished at the truck dock for the two warehouses. Significant
materials onsite include oil or grease and raw materials (such as o-xylene). Raw materials are stored
inside bulk tanks within proper containment and include various alcohols, organic anhydrides, sulfonyl
chlorides, inorganic alkaline material, and organic solvents. Finished products include esters,
sulfonamides, polymers, and other specialty chemical compounds.
The valving for the drain at outfall 002 is always closed while loading/unloading are taking place. Any
large spills traveling beyond the trench drain would be prevented from travel by the normally closed
valve at outfall 001. All other waters used in process at the site are piped to the equalization tank and are
discharged to the City of Greensboro POTW permit number P025.
Per the May 2016 inspection report: This facility produces plasticizers and flame retardants as well as
other chemical agents. One area of the site has monitoring wells. A measure incorporated as part of
groundwater/soils clean-up following a wastewater collection tanks collapse prior to Lanxess acquisition
from Unitex. A Pilot Plant has been removed, parking lot additions have taken place and a new tank
farm was installed. The facility has several tank farms. Some contain raw materials while others contain
finished chemical products. All tanks are contained in tank farms with secondary containment. All
process industrial water is pumped to City of Greensboro WWTP for treatment.
Page 1 of 6

Outfall SW001:
Drainage area consists of industrial buildings and loading docks.
Outfall SWO02:
Drainage area consists of industrial buildings, tank farms, and parking areas.
Why Industrial Sites with Stormwater are Subject to a Permit: Federal NPDES regulations define
stormwater discharge associated with industrial activity in 40 CFR §122.26 (b)(14) as: "the discharge
from any conveyance that is used for collecting and conveying storm water and that is directly related to
manufacturing,processing or raw materials storage areas at an industrial plant. The term does not
include discharges from facilities or activities excluded from the NPDES program under this part 122.
For the categories of industries identified in this section, the term includes, but is not limited to, storm
water [sic] discharges from industrial plant yards; immediate access roads and rail lines used or traveled
by carriers of raw materials, manufactured products, waste material, or byproducts used or created by
the facility; material handling sites; refuse sites; sites used for the application or disposal of process
waste waters (as defined at part 401 of this chapter); sites used for the storage and maintenance of
material handling equipment; sites used for residual treatment, storage, or disposal; shipping and
receiving areas; manufacturing buildings; storage areas (including tank farms) for raw materials, and
intermediate and final products; and areas where industrial activity has taken place in the past and
significant materials remain and are exposed to storm water. For the purposes of this paragraph, material
handling activities include storage, loading and unloading, transportation, or conveyance of any raw
material, intermediate product, final product, byproduct or waste product. The term excludes areas
located on plant lands separate from the plant's industrial activities, such as office buildings and
accompanying parking lots as long as the drainage from the excluded areas is not mixed with storm
water [sic] drained from the above described areas."
Section 2. Monitoring Information and Compliance History:
• September 2017 to May 2023, benchmarks exceeded for:
o SW001: COD 2x
o SWO02: COD 3x
303(d) listing:
South Buffalo Creek 16-11-14 2a WS-V;N5W 15.4 FW Miles
38D9 From source to McConnell Rd
PARAMETER . IR CATEGORY CRITERIA STATUS F REASON FOR RATING 303D YEAR
Benthos(Nar,AL,FW) F5 -1JE.,,-diig Criteria Fair,Poor or Severe Bioclassification 2[)OS
Fish Community(Nar,AL,FW) F5 Exceedin Criteria Fair,Poor or Severe Bioclassification 2012
TMDL:
A TMDL exists for South Buffalo Creek in the Cape Fear River Basin for fluoride, cyanide, and
selenium, which includes discharge point(s) for the permitted facility.
Page 2 of 6

South Buffalo Creek
• Pollutants:Flouride,Cyanide,Selenium
• EPA Approved 9/16/1997:Approval Packet
• Final TMDL Document:Contact MTU
Threatened/Endangered Species:
There are no threatened or endangered species in the discharge vicinity,but there is one species of
concern: Lowland Loosestrife (Steironema hybridums;NC status: SR-P)
Section 3. Proposed Monitoring for Stormwater Discharges:
The Division considered potential pollutants from past and present industrial activities and data was
submitted for February 2017 to May 2023. Quantitative sampling included pH, o-xylene, and COD.
Parameters are based on potential pollutants in the drainage area, sampling results, and in some cases,
dependent upon future activities. Below is a table of the proposed monitoring for each outfall at the
Hallstar site.
Outfalls SWO01 and SWO02
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
pH BASIS: Pollutant indicator
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Quarterly monitoring
COD BASIS: Discharge potential indicator
Quarterly monitoring
Ethanol BASIS: Potential pollutant from drainage area
Quarterly monitoring
Methanol BASIS: Potential pollutant from drainage area
o-Xylene Quarterly monitoring
BASIS: Potential pollutant from drainage area
Page 3 of 6

Stormwater Benchmarks and Tiered Response: Rather than limits,North Carolina NPDES
Stormwater permits contain benchmark concentrations. Stormwater benchmarks are numerical action
levels for stormwater monitoring. Benchmarks are not effluent limits, and benchmark exceedances are
not permit violations. Benchmarks provide facilities a tool for assessing the significance of pollutants in
stormwater discharges and the effectiveness of best management practices (BMPs). Benchmark
concentrations are intended as guidelines for the facility's development and implementation of the
Stormwater Pollution Prevention Plan (SWPPP).
Benchmark exceedances require the permittee to increase monitoring, increase management actions,
increase record keeping, and/or install stormwater BMPs in a tiered program. The permit establishes a
tiered approach to specify actions the permittee must take in response to analytical results above
benchmark concentrations. The tiered structure of the permit provides the permittee and DEMLR wide
flexibility to address issues that may arise with one or more parameters and/or outfalls.
Metals benchmarks are calculated to mimic acute water quality standards and with the guidance of
DWR. NC DWR follows established federal procedures for calculating acute standards when developing
the benchmarks. Just like the acute standards, metals benchmarks normally reflect one half of the
calculated Final Acute Value (the "1/2 FAV"). In most cases, translation into total recoverable values is
based on an assumed hardness of 25 mg/L and a total suspended solids (TSS) concentration of 10 mg/L.
Acute standards protect aquatic life from negative impacts of short-term exposure to higher levels of
chemicals where the discharge enters a waterbody. The Stormwater Permitting Program applies this
approach because of the ephemeral nature of rainfall events.
The Division may evaluate results to determine if a smaller suite of parameters for some outfalls is
adequate to characterize potential pollution or BMP effectiveness. For example, one or more metals or
other parameters may serve as an adequate tracer for the presence of ash pollution during disturbance or
ash removal in specific drainage areas at this site. For parameters that do not have a stormwater
benchmark, the Division may develop a benchmark value if appropriate toxicity data become available
or if rising trends in concentrations suggest a persistent source.
A summary of the benchmarks in the draft permit, and their basis, is below:
Parameter Benchmark Basis
Total Suspended 100 mg/L National Urban Runoff Program(NURP) Study, 1983
Solids TSS
H 6 s.u. —9 s.u. NC Water Quality Standard(Range)
Non-Polar Oil & Review of other state's daily maximum benchmark
Grease 15 mg/L concentration for this more targeted O&G;NC WQS that
EPA Method 1664 does not allow oil sheen in waters
SGT-HEM
COD 120 mg/L BPJ; Generally found at levels 4x BOD5 in domestic
wastewaters
Ethanol 3,900 mg/L '/2 FAV
Methanol 6,400 mg/L I '/2 FAV
o-X lene 4.03 mg/L I '/2 FAV
Stormwater Pollution Prevention Plan: The proposed permit conditions reflect the EPA and NC's
pollution prevention approach to stormwater permitting. The Division's maintains that implementation
Page 4 of 6

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

• "No discharge" clarifications made
• Feasibility study and online SWPPP certification requirement removed per updated stormwater
program requirements
• eDMR requirement added
• Boilerplate language moved into body of the permit; boilerplate no longer attached
• Outfall-specific monitoring been implemented to reflect industrial activity and potential
pollutants specific to each discharge area
• Facility ownership updated based in info provided October 2022
• Monitoring added for ethanol and methanol as they are stored onsite
• Benchmarks updated for parameters per guidance from DWR Standards group on stormwater
benchmarks
Section 5. Changes from draft to final:
• None
Section 6. Discussions with the Facility and Regional Office:
• Initial contact with facility: 7/28/2023
• Initial contact with Regional Office: 7/28/2023
• Draft sent to CO peer review: N/A
• Draft sent to Regional Office: 11/29/2023
• Final permit sent for supervisor signature: N/A
Section 7. Comments received on draft permit:
• Ben Kirby (PWS; via email 12/11/2023): The Public Water Supply Section concurs with the
issuance of this permit provided the facility is operated and maintained properly, the stated
effluent limits are met prior to discharge, and the discharge does not contravene the designated
water quality standards.
• Susan Gay (Hallstar Greensboro, LLC; via email 12/20/2023): We have taken the time to review
the Stormwater Permit NCS000107 and the changes that will take place beginning in January
2024 and wanted to let you know that we are all in agreement that the permit is good and we do
not have any further comments or questions at this time.
Page 6 of 6

2/16/24, 11:28 AM https://www.ncnotices.com/(S(v0igo4zgkiprOdkgjlv5wsl p))/DetailsPrint.aspx?SID=v0igo4zgkiprOdkgjlv5ws1 p&ID=470937
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Notice Publish Date:
Sunday,December 17,2023
Notice Content
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION INTENT TO ISSUE NPDES STORMWATER DISCHARGE PERMITS The North
Carolina Environmental Management Commission proposes to issue NPDES stormwater discharge permit(s) to the person(s) listed below.
Public comment or objection to the draft permits is invited. Written comments regarding the proposed permit will be accepted until 30 days
after the publish date of this notice and considered in the final determination regarding permit issuance and permit provisions.The Director
of the NC Division of Energy, Mineral, and Land Resources (DEMLR) may hold a public hearing should there be a significant degree of public
interest. Please mail comments and/or information requests to DEMLR at 1612 Mail Service Center, Raleigh, NC 27699-1612. Hallstar
Greensboro, LLC [120 S Riverside Plaza, Suite 1620, Chicago, IL 60606] has requested renewal of permit NCS000107 for the Hallstar
Greensboro, LLC facility in Guilford County. This facility discharges to an unnamed tributary to South Buffalo Creek in the Cape Fear River
Basin. Interested persons may visit DEMLR at 512 N. Salisbury Street, Raleigh, NC 27604 to review information on file. Additional information
on NPDES permits and this notice may be found on our website: https://deq.nc.gov/about/divisions/energy-mineral-and-land-
resources/stormwater/ stormwater-program/stormwater-public-notices, or by contacting Brianna Young at [e-mail] or
919-707-3647.
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https://www.ncnotices.com/(S(v0igo4zgkiprOdkgjlv5wsl p))/DetailsPrint.aspx?SID=v0igo4zgkiprOdkgjlv5wsl p&ID=470937 1/1

Young, Brianna A
From: Kirby, Ben
Sent: Monday, December 11, 2023 8:42 AM
To: Young, Brianna A
Cc: Fox, Shawn
Subject: FW: Hallstar Greensboro, LLC stormwater permit NCS000107
Attachments: Draft NPDES Permit NCS000107.pdf
Brianna,
The Public Water Supply Section concurs with the issuance of this permit provided the facility is operated and
maintained properly,the stated effluent limits are met prior to discharge, and the discharge does not contravene the
designated water quality standards.
Thanks,
Ben Kirby (he/him/his)
Assistant Regional Engineer, Winston-Salem Regional Office
Division of Water Resources, Public Water Supply Section
North Carolina Department of Environmental Quality
Office: [phone] 1 Cell: [phone]
450 West Hanes Mill Road, Suite 300, Winston-Salem, NC 27105
ben.kirby(@deg.nc.gov
NORTH CAROLINAD_E Q
DepartmeM of Environmental Duality
Email correspondence to and from this address is subject to the North
Carolina Public Records Law and may be disclosed to third parties.
From:Young, Brianna A<[e-mail]>
Sent:Wednesday, November 29, 2023 9:17 AM
To: Fox,Shawn <[e-mail]>
Subject: Hallstar Greensboro, LLC stormwater permit NCS000107
Good morning,
The draft stormwater permit for the Hallstar Greensboro, LLC facility(NCS000107) has been submitted for public
comment.This facility discharges to class WS-V; NSW waters. Please provide any comments by January 2, 2024.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
1

919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
2

Young, Brianna A
From: Susan Gay <[e-mail]>
Sent: Wednesday, December 20, 2023 9:45 AM
To: Young, Brianna A
Cc: Terry Hurst; Dan Fitzgerald; April Cesaretti; Bryan Weiss; Susan Gay
Subject: [External] Hallstar Greensboro, LLC stormwater permit NCS000107
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Good Morning Brianna,
I am the new EHS Manager for Hallstar Greensboro and wanted to introduce myself as a direct point of contact for the
facility, I look forward to working with you. We have taken the time to review the Stormwater Permit NCS000107 and
the changes that will take place beginning in January 2024 and wanted to let you know that we are all in agreement that
the permit is good and we do not have any further comments or questions at this time. I hope you enjoy your Holidays
and be safe.
Best regards,
Susan G.Gay
Environmental Health and Safety Manager
Phone [phone] Mobile [phone]
Email [e-mail]
520 Broome Road,Greensboro, NC 27406
Hallstar wishes you
and wonderful New7ea
Disclaimer:This e-mail (including any attachments) may contain information that is confidential or protected by
privilege. If you received this e-mail in error, please delete it from your system and notify the sender.
1

Compliance Inspection Report
Permit:NCS000107 Effective: 08/01/17 Expiration: 07/31/22 Owner: Hallstar Greensboro LLC
SOC: Effective: Expiration: Facility: Hallstar Greensboro LLC
County: Guilford 520 Broome Rd
Region: Winston-Salem
Greensboro NC 27406
Contact Person:Terry Hurst Title: Phone: [phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On-Site Representative(s):
Related Permits:
Inspection Date: 11/14/2023 Entry Time 09:OOAM Exit Time: 10:OOAM
Primary Inspector:Kimberly Turney Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Stormwater Discharge, Individual
Facility Status: Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page 1 of 3

Permit: NCS000107 Owner-Facility:Hallstar Greensboro LLC
Inspection Date: 11/14/2023 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
On November 14, 2023, this facility was inspected to verify activities and conditions for the renewal application review.
Industrial activities taking place are consistent with the current permit parameters and requirements. The facility appeared to
be compliant; no deficiencies or concerns were noted.
Page 2 of 3

Permit: NCS000107 Owner-Facility:Hallstar Greensboro LLC
Inspection Date: 11/14/2023 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Stormwater Pollution Prevention Plan Yes No NA NE
Does the site have a Stormwater Pollution Prevention Plan? ❑ ❑ ❑
#Does the Plan include a General Location (USGS) map? ❑ ❑ ❑
#Does the Plan include a"Narrative Description of Practices"? ❑ ❑ ❑
#Does the Plan include a detailed site map including outfall locations and drainage areas? ❑ ❑ ❑
#Does the Plan include a list of significant spills occurring during the past 3 years? ❑ ❑ ❑
#Has the facility evaluated feasible alternatives to current practices? ❑ ❑ ❑
#Does the facility provide all necessary secondary containment? ❑ ❑ ❑
#Does the Plan include a BMP summary? ❑ ❑ ❑
#Does the Plan include a Spill Prevention and Response Plan (SPRP)? ❑ ❑ ❑
#Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? ❑ ❑ ❑
#Does the facility provide and document Employee Training? 0 ❑ ❑ ❑
#Does the Plan include a list of Responsible Party(s)? 0 ❑ ❑ ❑
# Is the Plan reviewed and updated annually? 0 ❑ ❑ ❑
#Does the Plan include a Stormwater Facility Inspection Program? 0 ❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented? 0 ❑ ❑ ❑
Comment:
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ❑ ❑ ❑
#Were all outfalls observed during the inspection? ❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ❑
#Has the facility evaluated all illicit(non stormwater)discharges? ❑ ❑ ❑
Comment:
Page 3 of 3

'- L
HALLSTAR " '
August 28, 2023 Pip
Brianna Young 14 �
Industrial Individual Permits Coordinator SEP Storm Water Permitting Program
NC DEQI Division of Energy, Mineral, and Land Resources ��-Storr�Wafarpr
512 North Salisbury Street Oyram
Raleigh, NC 27604
Subject: NPDES Industrial Stormwater Permit Renewal NCS000107
Since the acquisition of the site by Hallstar on October 2 2022, there have been no changes to
the surface area, processes, or any changes to the two permitted outfalls at the site.
The industrial activity occurring at the site is loading and unloading activities, which are
continuously monitored and supervised.This is done in areas which allows for containment and
response. Spill control equipment such as absorbent pads and oil dry are readily available. The
valving for the drain at outfall 002 is always closed while these activities are taking place.
Although there is a trench at the loading 1 unloading which would contain any spills. Any large
spills traveling beyond the trench drain would be prevented from travel by the normally closed
valve at outfall 001. Outfall 001 primarily receives roof drain water and is channeled through a
series of two manways to the outfall. Outfall 002 collects stormwater from the driveway between
the buildings. The cutfalls are located at Lat 36' 02' 21" N and Long 79' 46' 40" W. Both outfalls
discharge into South Buffalo creek. All other waters used in process at the site are piped to the
equalization tank and are discharged to the City of Greensboro POTW permit number P025.
The loading and unloading of packaged materials in drums or intermediate bulk containers is
accomplished at the truck dock for the two warehouses.
See Facility Tank and Bulk Liquids for the list of chemicals stored on site.
The facility operates under SIC codes 325199 (All other basic organic manufacturing) and
325988 (All other chemical product and preparation manufacturing).
To my knowledge all the information submitted for renewal is correct.No operational changes
have been made at the facility.
Hallstar Corporate and Hallstar Darien/ Hallstar Bedford park Manufacturing Haltstar Stow Order
Executive Offices Beauty NA Headquarters and Technical Center Fulfillment Center
312 554.7400 877.427 4255 877.427 4255 877427.4255
120 South Riverside Plaza I Suite 1620 7879 Lemont Road 5851 West 73rd Street 4460 Hudson Drive
Chicago,IL 60606 Darien.IL 50561 Bedford Park,IL 60638 Slow.OH 44224
USA USA USA USA
Hallstar France Hallstar Italia Corporate Technical Hallstar Asia New Materials Science& Hallstar do Brasil Fortinbras
Technical Center Center,Order Fulfillment Office Technology(Suzhou)Co.Ltd. Comercial a Industrial Ltda.
00.331014.67 50.72.69 [phone] [phone] [phone]
50 rue du Ratol Via Ernesto Rossi.60162 Suite 402 1 Bldg 15,8 Jinfeag Road Rua Valdomiro Rovaron_
Frelorgues Est 20862 Arcore(MB) Suzhou New District.Suzhou 3aguari6na—SP
34 130 Mauguio Italy Jiangshu 215163 13820-WO
France China Brazil
Hallstar Greensboro Manufacturing
336,378.0965
520 Broome Rd
Greensboro,NC 27406
USA

HALLSTAR
Please contact me at 336 291 2771 or thurstCcDhallstar.com if additional information or questions
are required.
Best Regards,
Terry Hurst I Plant Manager
520 Broome Fed
Greensboro, NC 27406
Office 336-291-2771
Cell 336-687-0306
HALLSTAR
Page 2

EPA Identification Number NPDES Permit Number Facility Name FonnApproved G30119
NCDO61795696 NCS000107 Hallstar Greensboro LL[ OMB No.2040-0004
Form U.S Environmental Protection Agency
2F SOMA Application for NPDES Permit to Discharge Wastewater
NPDES STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
SECTIONr
1.1 Provide information on each of the facility's outfalls in the table below
Outfall Receiving Water Name Latitude Longitude
Number
001 South Buffalo Creek 36' 02' 21" N 79' 46' 40" W
e
0
5 002 South Buffalo Creek 36' 02' 21" N 79' 46' 40" W
0
J a o
i4
0 n u o r
u r ++ o r n
IMPROVEMENTSSECTION 2.
r
2.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes ❑✓ No-*SKIP to Section 3.
2.2 Briefly identify each applicable project in the table below.
Brief Identification and Affected Outfalls Final Compliance Dates
Description of Project Qist outfall numbers) Source(s)of Discharge
Required Projected
c
m
E
m
n
0
a
E
2.3 Have you attached sheets describing any additional water pollution control programs(or other environmental projects
that may affect your discharges)that you now have underway or planned?(Optional Item)
❑ Yes 0 No &=l
i li..�
EPA Form 3510-2F(Revised 3-19) Page 1
SEP is I023
'tWunwatar Program

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD061795696 NC5000107 Hallstar Greensboro LLC OMB No.2040-0004
SECTIONDRAINAGE 40 ,
'';°.` 3.1 Have you attached a site drainage map containing all required information to this application?(See instructions for
W .a specific guidance.)
c 0 Yes ❑ No
SECTIONPOLLUTANT SOURCES4i
4.1 Provide information on the facility's pollutant sources in the table below.
Outfall impervious Surface Area Total Surface Area Drained
Numbe (whin a mlla radius of the'facillty) (WWn a rude mi1lus dt6 fadfitY)
specify units specify units
001 1.8 acres 3.0 acres
specify units specify units
002 2.7 acres 3.8 acres
specify units specify units
specify units specify units
specify units specify units
specify units specify units
4.2 Provide a narrative description of the facility's significant material in the space below.(See instructions for content
requirements.)
Oil or grease from vehicle parking and travel areas.In the tank farm areas,raw materials such as O-Xylene,are
unloaded into their respective tanks.These products are stored inside bulk tanks within proper containment.There are
c no pesticides or herbicides processed or stored at the facility.
H
0
4.3 Provide the location and a description of existing structural and non-structural control measures to reduce pollutants in
stormwater runoff. See instructions forspecificguidance.)
Stoimwater Treatment
Codes
OutFatl- from
Number Control Measures and Treatment Exhibit
2F-1
st
001 Discharge to surface waters 4A
002 Discharge to surface waters 4A
EPA Form 3510-2F(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
NCDO61795696 NCS000107 Hallstar Greensboro LLC OMB No.2040-0004
SECTION •N STORMWATER • 1
5.1 l certify under penalty of law that the outfall(s) covered by this application have been tested or evaluated for the
presence of non-stormwater discharges. Moreover, 1 certify that the ou(falls identified as having non-stormwater
discharges are described in either an accompanying NPDES Form 2C,2D,or 2E application.
Name(print or type first and last name) Official title
Terry Hurst Plant Manager
Signature Date signed
/ lylL!/2.d - 03/24/2022
s
5.2 Provide the testing information requested In the table below.
Outfa[I :• - Cnsita,DrainagePoints
p Number Deseription of Testing t?flethQd USeit Dabe{s}Qf T lfng : Directljr Oliseived
L _ During Pest
o..
SECTION •• i rr
6.1 Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
Q. No Significant leaks or spills have occurred in the past three years.
A
SECTIONDISCHARGE INFORMATION40
See the instructions to determine the pollutants and parameters you are required to monitor and,In turn,the tables you must
Q complete.Not all applicants need to complete each table.
7.1 Is this a new source or new discharge?
❑ Yes 4 See instructions regarding submission of ❑ No 4 See instructions regarding submission of
estimated data. actual data.
Tables A,B,C,and D
7.2 Have you completed Table A for each outfall?
c ❑✓ Yes ❑ No
EPA Form 3510-2F(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Fadlity Name Form Approved 03105/19
NCD061795696 NC5000107 Hallstar Greensboro LLC OMB No.2040-0004
7.3 Is the facility subject to an effluent limitation guideline(ELG)or effluent limitations in an NPDES permit for its process
wastewater?
❑ Yes ❑ No 4 SKIP to Item 7.5.
7.4 Have you completed Table B by providing quantitative data for those pollutants that are(1)limited either directly or
indirectly in an ELG and/or(2)subject to effluent limitations in an NPDES permit for the facility's process wastewater?
❑ Yes ❑ No
7.5 Do you know or have reason to believe any pollutants in Exhibit 2F-2 are present in the discharge?
❑ Yes ✓❑ No 4 SKIP to Item 7.7.
7.6 Have you listed all pollutants in Exhibit 2F-2 that you know or have reason to believe are present in the discharge and
provided quantitative data or an explanation for those pollutants in Table C?
0 Yes ❑ No
7.7 Do you qualify for a small business exemption under the criteria specified in the Instructions?
❑ Yes 4SKIP to Item 7.18. 0 No
7.8 Do you know or have reason to believe any pollutants in Exhibit 2F-3 are present in the discharge?
❑ Yes ❑✓ No+SKIP to Item 7.10.
?� 7.9 Have you listed all pollutants in Exhibit 2F-3 that you know or have reason to believe are present in the discharge in
c Table C?
o ❑ Yes ❑ No
v
0 7.10 Do you expect any of the pollutants in Exhibit 217-3 to be discharged in concentrations of 10 ppb or greater?
❑ Yes ✓❑ No 4 SKIP to Item 7.12.
7.11 Have you provided quantitative data in Table C for those pollutants in Exhibit 2F-3 that you expect to be discharged in
concentrations of 10 ppb or greater?
❑ Yes ❑ No
- 7.12 Do you expect acrolein,acrylonibile,2,4-dinitrophenol,or 2-methyl-4,6-dinitrophenol to be discharged in concentrations
of 100 ppb or greater?
❑ Yes 0 No 4 SKIP to Item 7.14.
7.13 Have you provided quantitative data in Table C for the pollutants identified in Item 7.12 that you expect to be
discharged in concentrations of 100 ppb or greater?
❑ Yes ❑ No
7.14 Have you provided quantitative data or an explanation in Table C for pollutants you expect to be present in the
discharge at concentrations less than 10 ppb(or less than 100 ppb for the pollutants identified in Item 7.12)?
✓❑ Yes ❑ No
7.15 Do you know or have reason to believe any pollutants in Exhibit 2F-4 are present in the discharge?
0 Yes ❑ No 4 SKIP to Item 7.17.
7.16 Have you listed pollutants in Exhibit 2F-4 that you know or believe to be present in the discharge and provided an
explanation in Table C?
El Yes ❑ No
7.17 Have you provided information for the storm event(s)sampled in Table D?
❑� Yes ❑ No
EPA Form 3510-2F(Revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCDD61795696 NCS000107 Hallstar Greensboro LLC OMB No.2040-0004
79 Used or Manufactured Toxics
7.18 Is any pollutant listed on Exhibits 2F-2 through 2174 a substance or a component of a substance used or
cmanufactured as an intermediate or final product or byproduct?
c
0 Yes ❑ No 4 SKIP to Section 8.
0
7.19 List the pollutants below,including TCDD if applicable.
O
1.0-Xylene 4. 7.
2. 5. 8.
r3. 6. 9.
SECTION B. BIOLOGICAL TOXICITY TESTING DATA(40 CFR 122.21(g)(1 1))
8.1 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made on
any of your discharges or on a receiving water in relation to your discharge within the last three years?
c
CO ❑ Yes ❑✓ No 4 SKIP to Section 9. o3/2a/2ozz
8.2 Identify the tests and their purposes below.
Submitted to NPDES
Test(s� Purpose of Tests) Date Subm[tted ,
PermItUng Authorle.
~ ❑ Yes ❑ No
0
o ❑ Yes ❑ No
m
❑ Yes ❑ No
S EC TION - CONTRACT ANALYSIS INFORMATION .r
9.1 Were any of the analyses reported in Section 7(on Tables A through C)performed by a contract laboratory or
consulting firm?
❑ Yes ❑ No 4 SKIP to Section 10.
9.2 Provide information for each contract laboratory or consulting firm below.
Laboratory Number 1, Laboratory Number 2 Laboratory Number 3
Name of laboratory/firm Pace Analytical Services Inc.
C "
O
to
Laboratory address
� 9500 Kincey Ave.Suite 100
Huntersville,NC 28078
Phone number
v [phone]
Pollutant(s)analyzed o-Xylene
pH
COD
EPA Forth 3510-2F(Revised 3-19) Page 5

EPA Idenfificafion Number NPOES Permit Number Faclity Name Form Approved 03/05/19
NCD061795696 NCS000107 Hallstar Greensboro LLC OMB No.2040-0004
SECTION 1 41 and •
10.1 In Column 1 below,mark the sections of Form 2F that you have completed and are submitting with your application.For
each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note that not
all applicants are required to cam lete all sections or provide attachments.
Column[ Co[uriut:2 ,
0 Section 1 ❑ wl attachments(e.g.,responses for additional oudalls)
❑ Section 2 ❑ w/attachments
❑ Section 3 ❑ w/site drainage map
0 Section 4 ❑ w/attachments
❑r Section 5 ❑ w/attachments
Section 6 ❑ w/attachments
0 Section 7 0 Table A ❑ wl small business exemption request
H
c ❑ Table B ❑ wl analytical results as an attachment
❑r Table C ✓❑ Table D
❑ Section 8 ❑ w/attachments
r❑ Section 9 ✓❑ wlattachments(e.g.,responses for additional contact laboratories or firms)
32
_ ❑ Section 10 0
v 10.2
Certification Statement
l 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 property gather and evaluate the information
submitted.Based on my inquiry of the person or persons who manage the system or those persons directly responsible
for gathering the information, the information submitted is, to the best of my knowledge and belief, true,accurate,and
complete.I am aware that there are significant penalties for submitting false information,including the possibility of fine
and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Terry Hurst Plant Manager
Signature Date signed
03/24/2022
EPA Form 3510-2F(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Facility Name Outfall Number FormApproved 03105119
NCD061795696 NC5000107 Hallstar Greensboro LLC 001 OMB No.2040-0004
TABLE A.CONVENTIONAL AND NON • • 41
You must provide the results of at least one anal sis for every pollutant in this table.Complete one table for each outfall.See instructions for additional details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(spedtyunits) (specifyun4s) 1umberofStorm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new sourcelnew
During First Flow•Welghted During First Flow-Welghted Events Sampled ' dtschergera only;use
Composite Composite :. .
30 Minutes 30 Minutes codes in Instructions)
1. Oil and grease
2. Biochemical oxygen demand(BOD5)
3. Chemical oxygen demand(COD) 302 .43 inches 76.7 1.46 inches 13
4. Total suspended solids(TSS)
5. Total phosphorus
6. Total Neldahl nitrogen(TKN)
7 Total nitrogen(as N)
pH(minimum) 6.2 6.56 13
8.
pH(maximum) 7.0 6.56 13
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 7

EPA Ideni fica@on Number NPDES Permit Number Facility Name Outfall Number Form Approved 03105/19
NCDC61795696 NCS000107 Hallstar Greensboro LLC 002 OMB No.20404M
TABLE A.CONVENTIONAL AND NON • • 1
You must provide the results of at least one ana sis for every pollutant in this table.Com fete one table for each outfall.See instructions for additional details and re uirements.
Maximum DallrDischarge Average Daily Discharge Source of
(specify units) ((spear units) £Number of Stone'. Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new souroehtew
: . :Curing First FlouwWeightied During First Flow-Wetgtited Events Sampled' discrangeni only,use
Csomposite composite
30 Minutes 3tl Mlnntes `codes In Instructions)
1. Oil and grease
2. Biochemical oxygen demand(BOD5)
3. Chemical oxygen demand(COD) 740 .43 inches 137.68 1.46 inches 13
4. Total suspended solids(TSS)
5. Total phosphorus
6. Total lCeldahl nitrogen(TKN)
7. Total nitrogen(as N)
pH(minimum) 6 6.71 13
8.
pH(maximum) 7.5 6.71 13
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 7

This page intentionally left blank.
t

EPA Idendmflon Number NPDES Permit Number Facility Name Outfall Number Form Approved 03105J19
NCDC61795696 NCS000107 Nallstar Greensboro LLC 002 OMB No.2040-0004
TABLE B.CERTAIN CONVENTIONAL AND NON • • • •• • 1 41
List each pollutant that is limited in an effluent limitation guideline(ELG)that the facility is subject to or any pollutant listed in the facility's NPDES permit for its process wastewater(if the
facility is operating under an existing NPDES permit).Complete one table for each outfall.See the Instructions for additional details and requirements.
Maximum DaW,DIscharger Average Daily Discharge :Source of
uslts a units Number cf Storm .Information
Pollutant and CAS Number(if avallable) Grab Sample Taken . Grab Sample Taken .(rev sour ew
Flow-Weighted Flow•Weighted Events Sampled
During First During First &chargers only;use
Composts Composite
30 Mlnutes 30 Minutes doles in fnstrucgs)
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 9

This page intentionally left blank.
• F
I •'

EPA IdertUcation Number NPOES Permit Number Facility Name Outfall Number Form Approved 03I05119
NCD061795696 NCS000107 Hallstar Greensboro LLC 002 OMB No.2040-OM
TABLE • POLLUTANTS, '•• • i 1
List each pollutant shown in Exhibits 2F-2,2F-3,and 2F-4 that you know or have reason to believe is present.Complete one table for each outfall.See the instructions for additional
details and requirements.
Maximum DallYDischarge' Average Daily t)Ischarge 5 ; ::' .: Source of
utttts s units Ni+[mber`ofStorm lnformatton
S aken FioVwWstglttad IEvet>its Sampled (new souree/new
Flow Wad kited t
Pollutant and CAS Number Vavailabie) Grab Sample Taken Grab Sample T
DuringFirst During Firs dischargersortlyFvie
Cote site- Conepostbe
30 Minutes. `:. . 30 Minutes x;. codes In tr�truc6cr�
Ortho Xylene .0705 ugA .01398 u9/1 26
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 11

This page intentionally left blank.

EPA Identiflcatfon Number NPDES Permit Number Facility name Oulfall Number Form Approved 03l05119
NCDO61795696 NCSOOO1O7 Hallstar Greensboro LLC 002 OMB No.2040-M
STORMTABLE D. •- • 1
Provide data for the storm event(s)that resulted in the maximum daily discharges for the flow-welghted composite sample.
Numberof Hours:Between }r
Tota),Railtfitll During MaxinlRum taowRate
DaN of 8tolm.Event. DurWOi ,--of StornrEWnt. o Begtnnino of StormAeasured and Total Ftow from RaIn,EYsirt
frrrd'EVent
(tn hours) x End`of Previous Measurable.ttaln Dudrig Rain Event � )
'MfRdtes).; •= Mei�;orspe�fjuntis)
Event:
03/24/2022
3 .43 2160 .43 inches .43
Provide a description of the method of flow measurement or estimate.
Rain gauge
EPA Form 3510-2F(Revised 3-19) Page 13

Facility Tanks and Bulk Liquids Storage
Volume
Tank ID Description (gallons) Secondary Containment
A-1 25%Caustic 15,302 Concrete Dike
A-2 25-50% Caustic 13,409 Concrete Dike
A-3 Diluted Caustic 14,141 Concrete Dike
B-1 Butanol 10,040 Concrete Dike
B-2 Isobutanol 10,040 Concrete Dike
B-3 Tall Oil Fatty Acid 10,067 Concrete Dike
B-4 o-Xylene 7,708 Concrete Dike
B-5 CO-1214 Alcohol 7,749 Concrete Dike
B-6 7,376 Concrete Dike
B-7 Neopentyl Glycol 7,749 Concrete Dike
B-8 Acetic Anhydride 5,828 Concrete Dike
B-9 Hazardous Waste 5,828 Concrete Dike
C-1 Out of Service - Concrete Dike
C-2 U-214 11,440 Concrete Dike
C-3 8,314 Concrete Dike
C-4 Centrifuge Water 9,688 Concrete Dike
C-5 2 Ethyl Hexanol 15,106 Concrete Dike
C-6 Wastewater 14,410 Concrete Dike
C-7 FRP-45 Stocks 15,106 Concrete Dike
C-8 Uniplex 155 15,106 Concrete Dike
C-9 Dirty Mixed Solvent 14,892 Concrete Dike
C-10 Dirty Methanol 15,106 Concrete Dike
C-11 Recovered Mixed Solvent 15,106 Concrete Dike
C-12 Recovered Methanol 15,106 Concrete Dike
D-1 Plasthall 503 Stocks 2,500 Concrete Dike
D-2 U-260 Stocks 2,500 Concrete Dike
D-3 U-354 Stocks 2,500 Concrete Dike
D-4 U-155 Stocks 2,500 Concrete Dike
D-5 2,500 Concrete Dike

Facility Tanks and Bulk Liquids Storage
D-6 U-83 and U-84 Stocks 2,500 Concrete Dike
D-7 BUB Stocks 2,500 Concrete Dike
D-8 U-354 Stocks 2,500 Concrete Dike
D-9 Ethanol Used 2,500 Concrete Dike
D-10 DIDS Stocks Low Odor 2,500 Concrete Dike
D-11 U-125A Stocks 2,500 Concrete Dike
D-12 Uniplex-512 Stock 2,500 Concrete Dike
V-1 Plasthall 503 7,915 Building Walls, Floor Drain
V-3 Monoplex DOS 7,915 Building Walls, Floor Drain
E-1 2-EthylHexanol 19,036 Concrete Dike
E-2 Isodecyl Alcohol 19,036 Concrete Dike
E-3 Uniplex 214 19,106 Concrete Dike
E-4 Uniplex 214 19,106 Concrete Dike
E-5 Ultramoll 51107 19,036 Concrete Dike
E-6 Ultramoll V LV 15,106 Concrete Dike
E-7 FRP-45 19,036 Concrete Dike
E-8 U-125A 15,106 Concrete Dike
E-9 1,3 Butylene Glycol 19,036 Concrete Dike
E-10 U-80 Ethanol 15,106 Concrete Dike
E-11 DIDS 19,036 Concrete Dike
E-12 Butyl Benzoate 15,106 Concrete Dike
F-1 Installed* (Not assigned) 19,500 Concrete Dike
F-2 Installed* (Not assigned) 19,500 Concrete Dike
F-3 Not Installed Concrete Dike
F-4 Not Installed Concrete Dike
F-5 Not Installed Concrete Dike
F-6 Not Installed Concrete Dike
F-8 Not Installed Concrete Dike
F-9 Not Installed Concrete Dike
F-10 Not Installed Concrete Dike
F-11 Not Installed Concrete Dike
F-12 Not Installed Concrete Dike
H-1 Benzene sulfonyl Chloride 19,500 Concrete Dike
H-2 Benzene sulfonyl Chloride 19,500 Concrete Dike
J-1 n-Butylamine 19,500 Concrete Dike

STORMWATER SAMPLE ANALYTICAL RESULTS
O-Xylene(ug/L) 40300
O-Xylene(mg/L) 4.03
COD(mg/L) 120
pH @ 25°C 6-9
(reported . •D pH LM Total Rainfall,
Sampling D. LocValue) value)ation •D D.
9/12/2017 Out Flow 1 6.8 0.0068 28 7 3 9/12/2017 Out Flow 2 1.9 0.0019 25 7.5 3
5/1/2018 Out Flow 1 3.9 0.0039 35 6.5 3 5/1/2018 Out Flow 2 21.9 0.0219 33 6.9 3
12/14/2018 Out Flow 1 4.6 0.0046 143 6.7 3 12/14/2018 Out Flow 2 70.5 0.0705 192 6.6 3
3/25/2019 Out Flow 1 9.1 0.0081 28.9 6.4 2 3/25/2019 Out Flow 2 27.8 0.0278 113 6.5 2
10/20/2019 Out Flow 1 17.7 0.0177 62.5 6.2 2 10/20/2019 Out Flow 2 8 0.008 ND 6.5 2
1/24/2020 Out Flow 1 6.6 0.0066 56 6.3 0.25 1/24/2020 Out Flow 2 3.8 0.0038 ND 6 0.25
10/28/2020 Out Flow 1 6.3 0.0063 58.5 6.3 2 10/28/2020 Out Flow 2 19 0.0019 201 6.4 2
3/19/2021 Out Flow 1 6.2 0.0062 58.6 6.4 1 3/19/2021 Out Flow 2 1.9 0.0019 30,6 6.8 1
12/18/2021 out Flow 1 15.1 0.0151 49.3 7 1.5 12/18/2021 Out Flow 2 6.3 0.0063 35 7 1.5
3/24/2022 Out Flow 1 37.5 0.0375 302 6.5 0.43 3/24/2022 Out Flow 2 47.7 0.0477 740 6.7 0.43
5/27/2022 Out Flow 1 17.3 0.0173 95.2 6.8 0.53 5/27/2022 Out Flow 2 1.87 0.00187 29.9 7.1 0.53
11/16/2022 Out Flow 1 12.5 0.0125 31.8 6.7 0.15 11/16/2022 Out Flow 2 10.7 0.0107 36.6 6.6 0.15
5/30/2023 Out Flow 1 13.9 0.0139 48.3 6.5 0.17 1 5/30/2023 Out Flow 2 2.9 0.0029 88.4 26 0.17
INTERNAL

Revised March 2023
CERTIFICATION OF STORMWATER POLLUTION PREVENTION PLAN
Name of facility: HALLSTAR Corporation
Type of Facility: Manufacture of chemical products
Location of Facility: 520 Broome Road
Greensboro,North Carolina 28777
Guilford County
Phone Number: Telephone:[phone]
Designated Person Responsible
for Stormwater Pollution Terry Hurst
Prevention at Facility: Plant Manager
Certification:
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 possible fines and imprisonment for knowing
violations.
This Stormwater Pollution Prevention Plan will be implemented as described herein,and will be reviewed
and evaluated at least once every year.
Signature:
Name: ��✓� V-
Title: V[ k , m six _
Date: 1044
Page 4 of 35

jc
THY..
OF
14
IN K
1 •� '
i
h
3
r
Outfalls from the facility flow generally to the east and discharge through wooded property South Buffalo Creek(Stream
Index 16-11-14-2a),part of the Cape Fear sliver drainage basin.South Buffalo Creek is considered impaired(according to the
NC 303(d)list of impaired waters)for which a Total Maximum Daily Loads(TMDls)have been established for Cyanide,
Fluoride and Selenium(approved 09/16/97).
FIGURE F-2
MAP SCALE: 1 INCH=200 FEET f approximate) SITE MAP
IANXESS Corporation
MAP SOURCE: Greensboro, North Carolina
Guilford County CIS:http://gis.guilfardcountync.gov/izuilfordis/
April 2020

.f
Storm Water
Flow Lines
• 11
� 0
• 11 a

STORMWATER SAMPLE ANALYTICAL RESULTS
O-Xylene(ug/L) 40300
O-Xylene(mg/L) 4.03
COD(mg/L) 120
pH @ 25°C 6-9
• • • •
(reportedSampling Date Location . .. •• pH @ Total Rainfall,
Value) value) in. Value) value) (mg/L)2 25'C2 in.2
9/12/2017 Out Flow 1 6.8 0.0068 28 7 3 9/12/2017 Out Flow 2 1.9 0.0019 25 7.5 3
5/1/2018 Out Flow 1 3.9 0.0039 35 6.5 3 5/1/2018 Out Flow 2 21.9 0.0219 33 6.9 3
12/14/2018 Out Flow 1 4.6 0.0046 143 6.7 3 12/14/2018 Out Flow 2 70.5 0.0705 182 6.6 3
3/25/2019 Out Flow 1 8.1 0.0081 28.9 6.4 2 3/25/2019 Out Flow 2 27.8 0.0278 113 6.5 2
10/20/2019 Out Flow 1 17.7 0.0177 62.5 6.2 2 10/20/2019 Out Flow 2 8 0.008 ND 6.5 2
1/24/2020 Out Flow 1 6.6 0.0066 56 6.3 0.25 1/24/2020 Out Flow 2 3.8 0.0038 ND 6 0.25
10/28/2020 Out Flow 1 6.3 0.0063 58.5 6.3 2 10/28/2020 Out Flow 2 1.9 0.0019 201 6.4 2
3/19/2021 Out Flow 1 6.2 0.0062 58.6 6.4 1 3/19/2021 Out Flow 2 1.9 0.0019 30.6 6.8 1
12/18/2021 Out Flow 1 15.1 0.0151 49.3 7 1.5 12/18/2021 Out Flow 2 6.3 0.0063 35 7 1.5
3/24/2022 Out Flow 1 37.5 0.0375 302 6.5 0.43 3/24/2022 Out Flow 2 47.7 0.0477 740 6.7 0.43
5/27/2022 Out Flow 1 17.3 0.0173 95.2 6.8 0.53 5/27/2022 Out Flow 2 1.87 0.00187 29.9 7.1 0.53
11/16/2022 Out Flow 1 12.5 0.0125 31.8 6.7 0.15 11/16/2022 Out Flow 2 10.7 0.0107 36.6 6.6 0.15
5/30/2023 Out Flow 1 13.9 0.0139 48.3 6.5 0.17 5/30/2023 Out Flow 2 2.9 0.0029 88.4 6.7 0.17
INTERNAL

7/28/23, 9:56 AM North Carolina Secretary of State Search Results
• File an Annual Report/Amend an Annual Report • Upload a PDF Filing • Order a Document Online -
Add Entity to My Email Notification List • View Filings • Print a Pre-Populated Annual Report form • Print
an Amended a Annual Report form
Limited Liability Company
Legal Name
Hallstar Greensboro LLC
Information
Sosld: 2436240
Status: Current-Active O
Date Formed: 6/15/2022
Citizenship: Domestic
Annual Report Due Date: April 15th
Currentgnnual Report Status:
Registered Agent: COGENCY GLOBAL INC.
Addresses
Mailing Reg Office
120 S. Riverside Plaza, Suite 1620 212 South Tryon Street Suite 1000
Chicago, IL 60606 Charlotte, NC 28281
Reg Mailing Principal Office
212 South Tryon Street Suite 1000 520 Broome Rd
Charlotte, NC 28281 Greensboro, NC 27408
Company Officials
All LLCs are managed by their managers pursuant to N.C.G.S. 57D-3-20.
Manager
Scott J Hinkle
120 S. Riverside Plaza, Suite 1620
Chicago IL 60606
https://www.sosnc.gov/online services/search/Business_Registration_Results 1/1

Young, Brianna A
From: [e-mail]
Sent: Friday, March 11, 2022 3:31 PM
To: Young, Brianna A
Subject: [External] Lanxess Stoemwater Permit Renewal NCS000107
Attachments: LANXESS SW RENEWAL APPLICATION 2022.pdf
CAUTION: External email. Do not click links or open attachments unless you verify.Send all suspicious email as an attachment to
Report Spam.
Hello r Brianna,
Please find enclosed the application for renewal of NPDES Stormwater Permit NCS000107 for its stormwater
discharge. The permit expires July 31, 2022.
Attached are one copiy of the NPDES Stormwater Permit renewal application and supplemental information.
We appreciate the opportunity to submit this renewal application and hope that it meets your approval. We are available
to meet with you at your convenience to provide clarification on the renewal application.
Please contact me at 336-378-0965 extension 115 or 336-709-0046 if you have any questions or need additional
information.
Best Regards/ Mit freundlichen GrOgen
LaBarron O.McMillian
Plant Manager
------------------------------------
LANXESS Corporation
Business Unit Polymer Additives
520 Broome Road
Greensboro, NC 27406
[e-mail]
(Office) 336-378-0965 ext. 115
(Mobile) 336-709-0046
(Fax) 336-272-4312
LANXESS
i
http://Ianxess.us
This e-mail message(including any attachments)contains information that may be confidential,be protected by the attorney-client or other applicable privileges,or
constitute non-public information. It is intended to be conveyed only to the designated recipient(s). If you are not an intended recipient of this message,please
notify the sender by replying to this message and then delete it from your system.Use,dissemination,distribution,or reproduction of this message by unintended
recipients is not authorized and may be unlawful.tion,or reproduction of this message by unintended recipients is not authorized and may be unlawful.
1

LANXESS
Energizing Chemistry
SW Individual Permit Coverage Renewal
Stormwater Planning Program
1612 Mail Service Center
Raleigh, NC 27699-1612
Subject: Lanxess Corporation NPDES Stormwater Permit Renewal March 11,2022
Application
Permit Number NCS000107 LANXESS Corporation
LaBArron O.McMillian
520 Broome Road
Greensboro,NC 27406
Dear Brianna , Phone [phone]
Please find enclosed the application for renewal of NPDES Stormwater Permit Fax [phone]
NCS000107 for its stormwater discharge. The permit expires July 31, 2022. Laearron.McMillianCianxess.com
www.us.lanxess.com
Attached are one copiy of the NPDES Stormwater Permit renewal application and
supplemental information_
We appreciate the opportunity to submit this renewal application and hope that it
meets your approval. We are available to meet with you at your convenience to
provide clarification on the renewal application.
Please contact me at 336-378-0965 extension 115 or 336-709-0046 if you have
any questions or need additional information.
Yours incerely,
1 f :?I_J.A�on McMillian�
Plant Manager
INTERNAL

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03108/19
NCD061795696 NC5000107 Lanxess Corporation OMB No 2040-0004
Form U.S.Environmental Protection Agency
t 0% EPA Application for NPDES Permit to Discharge Wastewater
�
NPDES GENERAL INFORMATION
SECTION 1.ACTIVITIES REQUIRING AN •O r
1.1 Applicants Not Requh tto Submit Form 1
Is the facility a new or existing publicly owned Is the facility a new or existing treatment works
1.1.1 treatment works? 1.1.2 treating domestic sewage?
If yes,STOP.Do NOT complete ❑ No If yes,STOP.Do NOT ❑ No
Form 1.Complete Form 2A. complete Form 1.Complete
Form 2S.
1.2 Applicants Required to Submit Form 1
1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
operation or a concentrated aquatic animal commercial,mining,or silvicultural facility that is
production facility? currently discharging process wastewater?
r`i Yes 4 Complete Form 1 ❑� No Yes 4 Complete Form 0 No
and Form 2B. 1 and Form 2C.
m 1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
s mining,or silvicultural facility that has not yet commercial,mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
Yes 4 Complete Form 1 ✓� No Yes 4 Complete Form 0 No
and Form 2D. 1 and Form 2E.
1.2.5 Is the facility a new or existing facility whose
discharge is composed entirely of stormwater
a associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
Yes 4 Complete Form 1 ❑ No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x)or
(b)(15).
SECTIONADDRESS, • • r
2.1 Facility Name
Lanxess Corporation
2.2 EPA Identification Number
NCD061795696
2.3 Facility Contact
Name(first and last) Title Phone number
La Barron 0.McMillian Plant Manager [phone]
F Email address
• [e-mail]
2E 2A Facility Mailing Address
Street or P.O.box
520 Broome Road
City or town State ZIP code
Greensboro North Carolina 27406
EPA Form 3510-1(revised 3-19) Page 1

EPA Identification Number NPOES Permit Number Facility Name Form Approved 03105/19
NCD061795696 NCS000107 Lanxess Corporation OMB No.2040-0004
2.5 Facility Location
Street,route number,or other specific identifier
a 20 Broome Road
County name County code(if known)
� $q Guilford
� ZSS
-' City or town Stale ZIP code
Greensboro North Carolina 27406
SECTION 3. SIC AND NAICS CODES 41
3.1 SIC Code(s) Description(optional}
c�
c�
3.2 NAICS Codes) Description(optional)
325199 All other basic organic manufacturing
y 325998 All other miscellanous chemical product and preparation manufacturing
4.1 Name of Operator
Lanxess Corporation
4.2 Is the name you listed in Item 4.1 also the owner?
Yes ❑ No
4.3 operator Status
❑ Public—federal ❑ Public—state ❑Other public(specify)
✓❑Private ❑ Other(spe*)
4.4 Phone Number of Opemitor
[phone]
4.5 Operator Address
Street or P.O.Box
520 Broome Road
e City or town State ZIP code
Greensboro North Carolina 27406
Email address of operator
labarron.mcmillian@lanxess corn
SECTION
.1 -1 5.1 Is the facility located on Indian Land?
71 W
_ ❑Yes ❑No
EPA Form 3510.1(revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03)05119
NCD061795696 NC5000107 Lanxess Corporation OMB No.2040-0004
SECTION •• 40
6.1 Existing Environmental Perm€ts(check all that apply and print or type the corresponding permit number for each)
m NPDES(discharges to surface m RCRA(hazardous wastes) ❑ UIC(underground injection of
water) fluids)
A; NCS000107 NCDO61795696
❑ PSD(air emissions) ❑Nonattainment program(CAA) ❑ NESHAPs(CAA)
❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section 404) ❑Other(specify)
r• r
7.1 Have you attached a topographic map containing all required information to this application?(See instructions for
g• specific requirements.)
E
El Yes ❑ No ❑CAFC-Not Applicable(See requirements in Form 2B.)
SECTIONOF r
8.1 Describe the nature of your business.
The Greensboro,North Carolina location operates as a production site for the Polymer Additives Business Unit.
Lanxess Corporation site is dedicated to producing Flame Retardants,phthalate-free plasticizers for polymer
processing and other specialty products
in
.g
SECTION ' COOLING WATER INTAKE STRUCTURES(40
9.1 Does your facility use cooling water?
❑ Yes ❑ No+SKIP to Item 10.1.
9.2 Identify the source of cooling water.(Note that facilities that use a cooling water intake structure as described at
40 CFR 125,Subparts I and J may have additional application requirements at 40 CFR 122.21(r).Consult with your
x NPDES permitting authority to determine what specific information needs to be submitted and when.)
The source of the cooling water from the City of Greensboro
SECTIONr i i
10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)?(Check all that
apply.Consult with your NPDES permitting authority to determine what information needs to be submitted and
when.)
g ❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
°C Section 301(n)) 302(b)(2))
❑ Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g))
✓❑ Not applicable
EPA Form Hi0-1(revised 3-19} Page 3

STORMWATER SAMPLE ANALYTICAL RESULTS
Benchmarks
O-Xylene (ug/L) 40300
O-Xylene (mg/L) 4.03
COD(mg/L) 120
pH @ 25°C 6-9
r r
Sampling Date Location (reported (Calculated COD
Value) value) i n.
2/1/2017 Out Flow 1 5.9 0.0059 35 7 2
2/1/2017 Out Flow 2 2.5 0.0025 20 7 2
9/12/2017 Out Flow 1 6.8 0.0068 28 7 3
9/12/2017 Out Flow 2 1.9 0.0019 25 7.5 3
5/1/2018 Out Flow 1 3.9 0.0039 35 6.5 3
5/1/2018 Out Flow 2 21.9 0.0219 33 6.9 3
12/14/2018 Out Flow 1 4.6 0.0046 143 6.7 3
12/14/2018 Out Flow 2 70.5 0.0705 182 6.6 3
3/25/2019 Out Flow 1 8.1 0.0081 28.9 6.4 2
3/25/2019 Out Flow 2 27.8 0.0278 113 6.5 2
10/20/2019 Out Flow 1 17.7 0.0177 62.5 6.2 2
10/20/2019 Out Flow 2 8 0.008 ND 6.5 2
1/24/2020 Out Flow 1 6.6 0.0066 56 6.3 0.25
1/24/2020 Out Flow 2 3.8 0.0038 ND 6 0.25
10/28/2020 Out Flow 1 6.3 0.0063 58.5 6.3 2
10/28/2020 Out Flow 2 1.9 0.0019 201 6.4 2
3/19/2021 Out Flow 1 6.2 0.0062 58.6 6.4 1
3/19/2021 Out Flow 2 1.9 0.0019 30.6 6.8 1
12/18/2021 Out Flow 1 15.1 0.0151 49.3 7 1.5
12/18/2021 Out Flow 2 6.3 0.0063 35 7 1.5
INTERNAL

EPA Idenfificafion Number NPDES Permit Number Facility Name Form Approved 03105119
NCD061795696 NC5000107 Lanxess Corporation OMB No.2040-0004
SECTION1
11.1 In Column 1 below,mark the sections of Form 1 that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all applicants are required to provide attachments.
Column 1 Column 2
[� Section 1:Activities Requiring an NPDES Permit ❑ wl attachments
Section 2:Name,Mailing Address,and Location ❑ wl attachments
LEI Section 3:SIC Codes ❑ wl attachments
Section 4:Operator Information ❑ wl attachments
Section 5:Indian Land ❑ wl attachments
[� Section 6:Exisfing Environmental Permits ❑ wl attachments
[� Section 7:Map ❑ matopographic ❑ wl additional attachments
Section 8:Nature of Business ❑ wl attachments
Er Section 9:Cooling Water Intake Structures ❑ wl attachments
Section 10:Variance Requests ❑ wl attachments
Section 11:Checklist and Certification Statement ❑ wl attachments
11.2 Certification Statement
1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualified personnel property gather and evaluate the
information submitted.Based on my inquiry of the person or persons who manage the system,or those persons
directly responsible for gathering the information,the information submitted is,to the best of my knowledge and
belief,true,accurate,and complete.I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
La$arron O.McMillian Plant Manager
Signature Date signed
EPA Form 3510-1(revised 3.19) F age d

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STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy, Mineral, and Land Resources—Stormwater Program
Facility Name: LANXESS CORPORATION
Permit Number: NCS000107
Location Address: WO BROOME ROAD
GREENSBORO,NC 274M
County: GUILFORDCOUNTY
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all
attachments were developed and implemented under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information required by the SPPP.
Based on my Inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information gathered is, to the best of my knowledge and belief, true,
accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP
has been fully implemented at this facility location in accordance with the terms and conditions of the
stormwater discharge permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
Sign (according to permit signatory requirements) and return this Certification. DO NOT
SEND STORMWATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature X17 Date ZV-4?6 ?i
LABARRON O.MCMILLLM PLANT MANAGER
Print or type name of person signing above Title
SPPP Certification 10/13

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

S!_ * me `'µ• 3 }4` �. f�' 3�� ti ��.� _ � �'S �.
•aar a
Outfall
a r• . Wl. 36.039a9,-79.77745
= 4,
} •jai.. .
•�
x;t ;�••" OutfalE 002
k*' � f �y � ..+:; • � 36.03863,-79.77807 Y
Id
Y f
rr
r
5 y�
4f # + F a all
StarmwatcrPtping
' 07 •. ............
k
Stormwater How
# Drainage Areas aSize %impervious
w '� � � - .•�. � 1 Site �F19.1 acres'' ` 25 percent
r: ` + 1 #�. Outfall 001 '3.0 acres 60 percent
ti r Outfafl002 _3.8acres­ 70percent
Aid
Outfalls fromthe facility flow - ■ the east and discharge through ■■■-• property
Index 16-11-14-2a),part of the Cape Fear River drainage basin.South Buffalo Creek is considered impaired(according to the
NC 1 • list of •. • for ■ Daily Loadsbeen • ■ for Cyanide,
Fluoride and (approved 1'
FIGURE F-2
SITE MAP
MAP SCALE: 1 INCH=200 •■
LANXESS Corporation
MAP SOURCE: Greensboro, ■ Carolina
Guilford County GIS:htty.1/ais.puilfordcountync.goy/guilford's/
ApriI2020

SECTION NO. 4
SUPPLEMENTAL INFORMATION
BEST MANAGEMENT
PRACTICES
LANXESS Corporation is committed to preventing pollution at the source, and as such, has implemented
numerous best management practices (BMPs) and at-source storm-water pollution prevention controls to reduce
the quantity of pollutants in the Storm-water runoff. The structural controls (e.g.,containment, dike, curb, and/
or roof) and management practices employed at the individual significant materials at LANXESS are, listed in
Table 2 in the Supplemental Information Section No. 1. The site-wide BMPs that are, utilized by LANXESS
are; described in this section and include:
➢ Good Housekeeping,
➢ Inspections/Preventative Maintenance Programs,
➢ Outside Material Storage/Tanks/Secondary Containment,
➢ Material Handling,
➢ Spill Prevention and Response,
➢ Sewer and Outfall Identification, and
➢ Employee Training.
Good Housekeeping
LANXESS Corporation maintains a clean and orderly facility through implementation of a variety of programs,
practices and procedures, including:
• Regular pickup and disposal of garbage and debris
• Routine inspection for leaks
• Proper material container storage practices
• Identification and labeling of all chemical substances
• Disposal of old equipment and used chemicals
These housekeeping practices help to reduce waste and pollutant generation as well as the potential for spills
and leaks.
Inspection/Preventative Maintenance Program
The preventive maintenance program at LANXESS ensures that the Storm-water control facilities are clean and
operating effectively. The program consists of visual inspection, cleaning, and repair activities. Inspections
are, conducted at the Storm-water controls and the significant materials identified on the Site Map and Table 2
in the Supplemental Information Section No.1. At a minimum, these inspections are, conducted semi-annually.
Upon completion of the inspection, any cleaning and repair activities, if needed are, documented. Completion
of the inspections, cleaning, and repairs are tracked electronically.
LANXESS Corporation-NMES Storm-water
INTERNAL

Employee Training
The Employee Education and Training Program is, designed to familiarize key employees with the intent and
components of the Storm-water Pollution Prevention Plan. Training is, provided for employees involved in
operations with the potential to affect Storm-water.
Topics included in the training session include:
■ General Storm-water awareness
■ How to use the Storm-water Pollution Prevention Plan
■ Chemical spill response procedures
■ Preventative maintenance
■ Inspection Procedures
■ Materials management practices
■ Good housekeeping measures
Sewer and OutfalI Identification
There are three separate drainage collection systems at the facility: process wastewater, sanitary wastewater,
and Storm-water. Sewer manhole covers and catch basins have been color-coded to distinguish between these
systems.
In addition, as described previously, placards are, posted at all storm-water outfalls. This ensures consistent
location evaluation during visual monitoring, outfall inspections, and non-storm-water discharge assessments.
(Specialist, 2018)
LANXESS Corporation-WDES Storm-water
INTERNAL

LANXESS
Energizing Chemistry
SITE MAP for Storm Water Prevention Plan
Permit NCS000107 Expires 6/31/2022
Lanxess Corporation
520 Broome Road
Greensboro, NC 27406
Attached is a site map of the Lanxess Corporation showing the following:
1. Industrial Buildings
2. Drainage Areas for each outfall
3. Activities occurring for each outfall
4. Concrete Impervious Areas.
5. Storm water outfall #1 near the shipping dock
6. Storm water outfall #2 gate valves between E & C tank farms.
Raw materials used in manufacturing include various alchols, organic anhydrides, sulfonyl
chlorides, inorganic alkaline material, and organic solvents.
Finished products include esters, sulfonamides, polymers, and other specialty chemical
compounds.
During the past five years time frame, there have been no significant spills or leaks of pollutants
that have come in contact with the storm water discharges.
INTERNAL

LANXESS
Energizing Chentirstry
Lanxess Corporation
520 Broome Road
Greensboro, NC 27406
Best Management Practices for
Storm Water Prevention Plan
Permit NCS000107 Expires 6/31/2022
Stormwater Management Overview
At the Lanxess Greensboro facility,all loading/unloading areas are covered. The areas behind
inside production area LP-2 are primarily for drum and tote filling on both liquid and molten
materials. Filled drums are stored in warehouse by shipping dock. Cast molten material is
stored on racks and shelves prior to being ground to meet customer specifications. Cast material
solidifies quickly while filling and casting in LP1 or LP2 diked production areas, to prevent
spilling to environment.
Drum recycling takes place on contained concrete pad behind LP2. Drum recycling consists of
weak caustic rinse of emptied drums on concrete pad by automated filling equipment. Caustic is
pumped into and out of drum. Concrete pad contains all spill to the sump, for collection to C6
pretreatment. C6 pretreatment is discharged to City of Greensboro POTW.
All outside tanks are diked, in the event of a spill or leak. Storm water from these dikes is
pumped to collection in C6, prior to discharge to City of Greensboro POTW. Facility has
equipment for recovery in the event of a spill or leak. No spills from the diked tank farms should
ever be released to stormwater drainage system.
Additionally the manufacturing areas designated on the map (UP-1, UP-2, LP-1, and LP-2,
Flammable Storage Warehouse, Finished Product Storage, Centrifuge Building, hot room
storage, and Pilot Plot) are all designed to contain accidental spills or leaks to roadways and
storm water discharge.
Spill Prevention and Response Management Overview
The identified potential pollutant sources at Lanxess Greensboro are:
1. Failed or broken valves, transfer lines, or hoses used during loading and
INTERNAL

}
LANXESSi
unloading operations.
2. Accidental release of materials, from the reactors, such as rupture discs,
pressure relief valves activation, or in the event of attached broken valves or lines.
3. Accidental spills of materials while transporting containers between production
and warehouse areas, including flammable storage building, and the hot room
storage buildings.
Daily management walk-arounds are conducted to assess status of tanks and production
equipment. Work orders for needed improvements are recorded in computer system to be
repaired.
Employee Trainine
The Employee Education and Training Program is, designed to familiarize key employees with
the intent and components of the Storm-water Pollution Prevention Plan. Training is, provided
for employees involved in operations with the potential to affect Storm-water.
Topics included in the training session include:
• General Storm-water awareness
■ How to use the Storm-water Pollution Prevention Plan
■ Chemical spill response procedures
• Preventative maintenance
■ Inspection Procedures
■ Materials management practices
• Good housekeeping measures
INTERNAL

LANXESS
Energizing Chemistry
RECEIVED
MAR 17 2023
SW Individual Permit Coverage Renewal
Stormwater Planning Program DENR-LAND QUALITY
1612 Mail Service Center 3TORMWA`i'ER.PERMITTING
Raleigh, NC 27699-1612
Subject: Lanxess Corporation NPDES Stormwater Permit Renewal March 11,2022
Application
Permit Number NCS000107 LANXESS Corporation
LaBArron 0.McMillian
520 Broome Road
Greensboro,NC 27406
Dear Brianna , Phone [phone]
Please find enclosed the application for renewal of NPDES Stormwater Permit Fax [phone]
LaBarron.McMillian Q lanxess.com
NCS000107 for its stormwater discharge. The permit expires July 31, 2022. LaBarr n. ss.com
Attached are one copiy of the NPDES Stormwater Permit renewal application and
supplemental information.
We appreciate the opportunity to submit this renewal application and hope that it
meets your approval. We are available to meet with you at your convenience to
provide clarification on the renewal application.
Please contact me at 336-378-0965 extension 115 or 336-709-0046 if you have
any questions or need additional information.
Yours sincerely,
C
LaBarfon O. McMillian
Plant Manager
INTERNAL

RECEIVED
EPA Identification Number NPDES Permit Number Facility Name MA:Rn 1prav {p'JI�5l19
NCDO61795696 NC5000107 Lanxess Corporation O tJo. 4r10004
Form U.S.Environmental Protection Agency.�i-�R��NATER F'ER�I1TTHd
:.EPA Application for NPDES Permit to discharge Was a At
Ni GENERAL INFORMATION
SECTION • •D i
1.1 Applicants Not Requiredto Submit Form 1
Is the facility a new or existing publicly owned Is the facility a new or existing treatment works
1.1.1 treatment works? 1.1.2 treating domestic sewage?
If yes, STOP.Do NOT complete 0 No If yes,STOP.Do NOT 0 No
Form 1. Complete Form 2A. complete Form 1.Complete
Form 23,
1.2 Applicants Required to Submit Form 1
le 1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
E operation or a concentrated aquatic animal commercial,mining,or silvicultural facility that is
a- production facility? currently discharging process wastewater?
co
III ❑ Yes 4 Complete Form 1 ❑� No ❑ Yes 4 Complete Form No
z and Form 213. 1 and Form 2C.
1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
mining,or silvicultural facility that has not yet commercial, mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
Yes 4 Complete Form 1 ✓❑ No ❑ Yes i Complete Form No
and Form 2D. 1 and Form 2E
Q7 1.2.5 Is the facility a new or existing facility whose
discharge is composed entirely of stormwater
a associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
❑ Yes 4 Complete Form 1 Fj No
and Form 2F
unless exempted by
40 CFR
122.26(1 or
b)(15 .
SECTIONDD- • •
2.1 FacilRy Name
Lanxess Corporation
0 2.2 EPA Identification Number
16
U
NCD061795696
2.3 Facility Contact
CPT
Name(first and last) Title Phone number
LaBarron 0.McMillian Plant Manager [phone]
Email address
- [e-mail]
2.4 Facility Mailing Address
ra E Street or P.O.box
z
520 Broome Road
City or town State ZIP code
Greensboro North Carolina 27406
EPA Form 3510-1(revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
NCD061795696 NCS000107 Lanxess Corporation OMB No.2040-0004
2.5 Factttty Location "
e Street,route number,or other specific identifier
a
20 Broome Road
o County name County code(if known)
vs a ¢ Guilford s i. A
� . N
� City or town State ZIP code
Greensboro North Carolina 27406
v .,.
SECTION
•D 40
t 3.1 G )._ gescdpfion4(o . all - �- 4
3.2 tVA(CS Codes) Descipfton(opporial)
325199 All other basic organic manufacturing
t
325998 All other miscellanous chemical product and preparation manufacturing
:-. 4.1 -
ame., 0 eratoir'
Lanxess Corporation
0 4.2 Is the name you listed in Item 4.1 also the owner?
.i_ ❑ Yes ❑ No
2 ;..
-� 4.3 0 eatorStatus'
❑ sublic Public—federal ❑Public—state ❑ Other (specify)
p ( R fy)
O ❑✓ Private ❑Other(specify)
4.4 Phode N' b6f.bf Operator. _.
[phone]
4.5 0 ..irator:Address
Street or P.O.Box
520 Broome Road
cCity or town State ZIP code
Greensboro North Carolina 27406
Email address of operator
J.r
[e-mail]
SECTION1
5.1 Is the facility located on Indian Land?
❑Yes ✓❑No
EPA Form 3510-1(revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
NCDO61795696 NCS000107 Lanxess Corporation OMB No.2040-0004
SECTION 6. EXISTING ENVIRONMENTAL PERMITS(40 CFR 122.21(f)(6))
V 10WOr
0 NPDES(discharges to surface m IRCRA(hazardous wastes) ❑ UIC(Underground injection of
water) fluids)
NCS000107 NCO061795696
PSD(air emissions) El Nonattainment program(CAA) El NESHAPs(CAA)
Ocean dumping(MPIRSA) :=redge or fill(CWA Section 404) El Other(specify)
SECTION 7. MAP(40 CFR 122.21(f)(7))
7.1 Have you attached a topographic map containing all required information to this application?(See instructions for
specific requirements.)
El Yes El No El CAFO—Not Applicable(See requirements in Form 2B.)
SECTION 8. NATURE OF BUSINESS(40 CIFIR 122.21(f)(8))
8.1 Describe the nature of your business.
The Greensboro,North Carolina location operates as a production site for the Polymer Additives Business Unit.
Lanxess Corporation site is dedicated to producing Flame Retardants,phthalate-free plasticizers for pplymer
processing and other specialty products
C'
SECTION 9.COOLING WATER INTAKE STRUCTURES(40 CFR 122.21(f)(9))
9.1 Does your facility use cooling water?
❑ Yes 1:1 No 4 SKIP to Item 10.1.
9.2 Identify the source of cooling water.(Note that facilities that use a cooling water intake structure as described at
40 CFR 125,Subparts I and J may have additional application requirements at 40 CFR 122.21(r).Consult with your
NPDES permitting authority to determine what specific information needs to be submitted and when.
The source of the cooling water from the City of Greensboro
SECTION 10.VARIANCE REQUESTS(40 CFR 122.21(f)(10))
10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)?(Check all that
apply.Consult with your NPDES permitting authority to determine what information needs to be submitted and
7; when.)
❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
Section 301(n)) 302(b)(2))
Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g))
Not applicable
EPA Form 3510-1(revised 3-19) Page 3

STORMWATER SAMPLE ANALYTICAL RESULTS
Benchmarks
O-Xylene (ug/L) 40300
O-Xylene (mg/L) 4.03
COD (mg/L) 120
pH @ 25°C 6-9
• •
Sampling Date Location (reported (Calculated •D
Value) value) in.
2/1/2017 Out Flow 1 5.9 0.0059 35 7 2
2/1/2017 Out Flow 2 2.5 0.0025 20 7 2
9/12/2017 Out Flow 1 6.8 0.0068 28 7 3
9/12/2017 Out Flow 2 1.9 0.0019 25 7.5 3
5/1/2018 Out Flow 1 3.9 0.0039 35 6.5 3
5/1/2018 Out Flow 2 21.9 0.0219 33 6.9 3
12/14/2018 Out Flow 1 4.6 0.0046 143 6.7 3
12/14/2018 Out Flow 2 70.5 0.0705 182 6.6 3
3/25/2019 Out Flow 1 8.1 0.0081 28.9 6.4 2
3/25/2019 Out Flow 2 27.8 0.0278 113 6.5 2
10/20/2019 Out Flow 1 17.7 0.0177 62.5 6.2 2
10/20/2019 Out Flow 2 8 0.008 ND 6.5 2
1/24/2020 Out Flow 1 6.6 0.0066 56 6.3 0.25
1/24/2020 Out Flow 2 3.8 0.0038 ND 6 0.25
10/28/2020 Out Flow 1 6.3 0.0063 58.5 6.3 2
10/28/2020 Out Flow 2 1.9 0.0019 201 6.4 2
3/19/2021 Out Flow 1 6.2 0.0062 58.6 6.4 1
3/19/2021 Out Flow 2 1.9 0.0019 30.6 6.8 1
12/18/2021 Out Flow 1 15.1 0.0151 49.3 7 1.5
12/18/2021 Out Flow 2 6.3 0.0063 35 7 1.5
INTERNAL

EPA Identification Number NPDES Permit Number FadI ty Name Form Approved 03105/19
NCD061795696 NCS000107 Lanxess Corporation OMB No.2040-0004
SECTION 11.CHECKLIST AND CERTIFICATION STATEMENT 41
11.1 In Column 1 below,mark the sections of Form 1 that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all applicants are required to provide attachments.
;:4Cotumn 1 _ Coburn 2
[� Section 1:Activities Requiring an NPDES Permit ❑ wl attachments
Section 2:Name,Mailing Address,and Location ❑ wl attachments
Lam! Section 3:SIC Codes ❑ wl attachments
i•,
Section 4:Operator Information ❑ wl attachments
Section 5: Indian Land ❑ wl attachments
Section 6: Existing Environmental Permits ❑ w/attachments
Er Section 7:Map wl topographic
❑ Elma wl additional attachments
,0 Section 8:Nature of Business ❑ wl attachments
Er Section 9:Cooling Water Intake Structures ❑ wl attachments
v [� Section 10:Variance Requests ❑ wl attachments
c :
ceo
Section 11:Checklist and Certification Statement ❑ wl attachments
11.2 Certification Statement
y 1 certify under penally 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 property gather and evaluate the
information submitted.Based on my inquiry of the person or persons who manage the system,or those persons
directly responsible for gathering the information,the information submitted is,to the best of my knowledge and
belief,true,accurate,and complete.I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
LaBarron 0.McMillian Plant Manager
Signature Date signed
EPA Form 3510-1(revised 3-19) Page 4

STORMWATER DISCHARGE OUTFALL MONITORING REPORTS
SolidsDate of Inspection Location Color Odor Clarity Floating Suspended Foam Oil Sheen Erosion
.
9/12/2017 Out Flow 1 Clear None 1 2 2 No No No
9/12/2017 Out Flow 2 Clear None 1 1 2 No No No
5/1/2018 Out Flow 1 Clear None 1 1 3 No No No
5/1/2018 Out Flow 2 Clear None 1 1 2 No No No
12/14/2018 Out Flow 1 Clear None 1 1 2 No No No
12/14/2018 Out Flow 2 Clear None 1 1 2 No No No
3/25/2019 Out Flow 1 Clear None 1 1 3 No No No
3/25/2019 Out Flow 2 Clear None 1 1 2 No No No
10/20/2019 Out Flow 1 Clear None 1 1 1 No No No
10/20/2019 Out Flow 2 Clear None 1 1 1 No No No
1/24/2020 Out Flow 1 Clear None 1 1 1 No No No
1/24/2020 Out Flow 2 Clear None 1 1 1 No No No
10/28/2020 Out Flow 1 Clear None 1 2 2 No No No
10/28/2020 Out Flow 2 Clear None 1 2 3 No No No
3/19/2021 Out Flow 1 Clear None 1 1 1 No No No
3/19/2021 Out Flow 2 Clear None 1 1 1 No No No
12/18/2021 Out Flow 1 Clear None 1 1 1 No No No
12/18/2021 Out Flow 2 Clear None 1 1 1 No No No
INTERNAL

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy, Mineral, and Land Resources—Stormwafer Program
Facility Name: LANXESS CORPORATION
Permit Number: NCS000107
Location Address: 520 BROOME ROAD
GREENSBORO.NC 27406
County: GUILFORD COUNTY
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all
attachments were developed and implemented under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information required by the SPPP.
Based on my inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information gathered is, to the best of my knowledge and belief, true,
accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP
has been fully implemented at this facility location in accordance with the terms and conditions of the
stormwater discharge permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
Sign (according to permit signatory requirements) and return this Certification. DO NOT
SEND STORMWATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature 9 Date /7/zd ZZ
LABARRON O.MCMILLIAN PLANT MANAGER
Print or type name of person signing above Title
SPPP Certification 10/13

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
lk1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas,process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, lab results, date sampled, and storm event data.
3. A summary of the Visual Monitoring results. Do not submit individual monitoring
reports. The summary can consist of a table including such items as outfall number,
parameters surveyed, observations, and date monitoring conducted.
4. A summary of the Best Management Practices utilized at the permitted facility.
Summary should consist of a short narrative description of each BMP's in place at
the facility. If the implementation of any BMP's is planned,please include
information on these BMP's.
5. A short narrative describing any significant changes in industrial activities at the
permitted facility. Significant changes could include the addition or deletion of
work processes, changes in material handling practices, changes in material storage
practices, and/or changes in the raw materials used by the facility.
6. Certification of the development and implementation of a Stormwater Pollution
Prevention Plan for the permitted facility (Sign and return attached form).
If the final year analytical monitoring of the existing permit term has not been completed
prior to filing the renewal submittal, then the last years monitoring results should be submitted
within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal
waiting on lab results)

4 3 y Y
IV
AN
4111,
Vt
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4 .
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Outfalls from the facility flow generally to the east and discharge through wooded property South Buffalo Creek(Stream
Index 16-11-14-2a), part of the Cape Fear River drainage basin. South Buffalo Creek is considered impaired (according to the
NC 303(d) list of impaired waters) for which a Total Maximum Daily Loads(TMDLs) have been established for Cyanide,
Fluoride and Selenium (approved 09/16/97).
FIGURE F-2
MAP SCALE: 1 INCH =200 FEET(approximate) SITE MAP
LANXESS Corporation
MAP SOURCE: Greensboro, North Carolina
Guilford County GIS: httr)://gis.guilfardcountync.gov/guilfordis/
April 2020

� b
SECTION NO. 4
SUPPLEMENTAL INFORMATION
BEST MANAGEMENT
PRACTICES
LANXESS Corporation is committed to preventing pollution at the source, and as such, has implemented
numerous best management practices (BMPs) and at-source storm-water pollution prevention controls to reduce
the quantity of pollutants in the Storm-water runoff. The structural controls (e.g., containment, dike, curb, and/
or roof) and management practices employed at the individual significant materials at LANXESS are,listed in
Table 2 in the Supplemental Information Section No. 1. The site-wide BMPs that are, utilized by LANXESS
are; described in this section and include:
➢ Good Housekeeping,
➢ Inspections/Preventative Maintenance Programs,
➢ Outside Material Storage/Tanks/Secondary Containment,
➢ Material Handling,
➢ Spill Prevention and Response,
➢ Sewer and Outfall Identification, and
➢ Employee Training.
Good Housekeeping
LANXESS Corporation maintains a clean and orderly facility through implementation of a variety of programs,
practices and procedures, including:
• Regular pickup and disposal of garbage and debris
• Routine inspection for leaks
• Proper material container storage practices
• Identification and labeling of all chemical substances
• Disposal of old equipment and used chemicals
These housekeeping practices help to reduce waste and pollutant generation as well as the potential for spills
and leaks.
Inspection/Preventative Maintenance Program
The preventive maintenance program at LANXESS ensures that the Storm-water control facilities are clean and
operating effectively. The program consists of visual inspection, cleaning, and repair activities. Inspections
are, conducted at the Storm-water controls and the significant materials identified on the Site Map and Table 2
in the Supplemental Information Section No.1. At a minimum, these inspections are, conducted semi-annually.
Upon completion of the inspection, any cleaning and repair activities, if needed are, documented. Completion
of the inspections, cleaning, and repairs are tracked electronically.
LANXESS Corporation-LAMES Storm-water
INTERNAL

Specific inspection areas include:
■ Material handling and storage areas
■ Secondary containment areas
■ Storm-water outfalls
■ Catch basins and trench drains
■ Roofs and covers
■ Potential spills and areas of possible contamination
Outside Material Storage/Tanks/Secondary Containment
LANXESS Corporation practices and activities related to outside material storage areas and aboveground tanks
are in place to prevent or minimize contact of significant materials with storm-water. Many material storage
areas are covered and/or have containment curbing or grading. Aboveground tanks; are in compliance with
federal and state laws for containment, integrity testing, overflow protection, and protective guards. Storm-
water retained by the curbing or dikes is, visually inspected for contaminants prior to release.
BMPs currently in use:
■ Provide secondary containment for liquid storage
■ Provide containment curbing, dikes, and/or grading
■ Cover materials to eliminate exposure to Storm-water
■ Store materials on pallets or racks
■ Visually inspect Storm-water retained by curbing/dikes/containment prior to release
■ Move storage areas inside if possible
Material Handling
Material loading and unloading is,typically conducted in areas designed to reduce potential contact with Storm-
water. Loading areas for bulk chemical transfers are either: (1) contained to allow visual inspection of Storm-
water prior to release, or(2) are, graded to direct Storm-water to the process drain system for treatment prior to
discharge. The Storm-water is contained during transfer operations by secondary containment, curbing,
grading,trays, and/or drain covers. Further, manual valves in the closed position have,been installed in
selected storm drains.
Direct pipeline transfers are in place for several materials and waste streams. This method of material transfer
greatly reduces the potential of Storm-water contamination.
There are detailed written guidelines on loading and unloading procedures in the Spill Prevention Control and
Countermeasures Plan.
Spill Prevention and Response
LANXESS Corporation has written procedures on spill prevention and response. These procedures describe the
protocol of responding to a spill and the individuals at the site that are to be, contacted. The procedures are
included in the facility Spill Prevention Control and Countermeasures Plan and in the Radiological Contingency
and Emergency Plan. Site staff are; trained on spill prevention and response.
LANXESS Corporation-NPDES Storm-water
INTERNAL

Employee Training
The Employee Education and Training Program is, designed to familiarize key employees with the intent and
components of the Storm-water Pollution Prevention Plan. Training is,provided for employees involved in
operations with the potential to affect Storm-water.
Topics included in the training session include:
■ General Storm-water awareness
■ How to use the Storm-water Pollution Prevention Plan
■ Chemical spill response procedures
■ Preventative maintenance
■ Inspection Procedures
■ Materials management practices
■ Good housekeeping measures
Sewer and Outfall Identification
There are three separate drainage collection systems at the facility: process wastewater, sanitary wastewater,
and Storm-water. Sewer manhole covers and catch basins have been color-coded to distinguish between these
systems.
In addition, as described previously, placards are, posted at all storm-water outfalls. This ensures consistent
location evaluation during visual monitoring, outfall inspections, and non-storm-water discharge assessments.
(Specialist, 2018)
LANXESS Corporation-NMES Stone-water
INTERNAL

LANXESS
Energizing Chemistry
SITE MAP for Storm Water Prevention Plan
Permit NCS000107 Expires 6/31/2022
Lanxess Corporation
520 Broome Road
Greensboro, NC 27406
Attached is a site map of the Lanxess Corporation showing the following:
1. Industrial Buildings
2. Drainage Areas for each outfall
3. Activities occurring for each outfall
4. Concrete Impervious Areas.
5. Storm water outfall #1 near the shipping dock
6. Storm water outfall #2 gate valves between E & C tank farms.
Raw materials used in manufacturing include various alchols, organic anhydrides, sulfonyl
chlorides, inorganic alkaline material, and organic solvents.
Finished products include esters, sulfonamides, polymers, and other specialty chemical
compounds.
During the past five years time frame, there have been no significant spills or leaks of pollutants
that have come in contact with the storm water discharges.
INTERNAL

LA�VXESS
Energizing Chemistry
Lanxess Corporation
520 Broome Road
Greensboro, NC 27406
Best Management Practices for
Storm Water Prevention Plan
Permit NCS000107 Expires 6/31/2022
Stormwater Management Overview
At the Lanxess Greensboro facility, all loading/unloading areas are covered. The areas behind
inside production area LP-2 are primarily for drum and tote filling on both liquid and molten
materials. Filled drums are stored in warehouse by shipping dock. Cast molten material is
stored on racks and shelves prior to being ground to meet customer specifications. Cast material
solidifies quickly while filling and casting in LP1 or LP2 diked production areas, to prevent
spilling to environment.
Drum recycling takes place on contained concrete pad behind LP2. Drum recycling consists of
weak caustic rinse of emptied drums on concrete pad by automated filling equipment. Caustic is
pumped into and out of drum. Concrete pad contains all spill to the sump, for collection to C6
pretreatment. C6 pretreatment is discharged to City of Greensboro POTW.
All outside tanks are diked, in the event of a spill or leak. Storm water from these dikes is
pumped to collection in C6, prior to discharge to City of Greensboro POTW. Facility has
equipment for recovery in the event of a spill or leak. No spills from the diked tank farms should
ever be released to stormwater drainage system.
Additionally the manufacturing areas designated on the map (UP-1, UP-2, LP-1, and LP-2,
Flammable Storage Warehouse, Finished Product. Storage, Centrifuge Building, hot room
storage, and Pilot Plot) are all designed to contain accidental spills or leaks to roadways and
storm water discharge.
Spill Prevention and Response Management Overview
The identified potential pollutant sources at Lanxess Greensboro are:
1. Failed or broken valves, transfer lines, or hoses used during loading and
INTERNAL

LANXESSi
unloading operations.
2. Accidental release of materials, from the reactors, such as rupture discs,
pressure relief valves activation, or in the event of attached broken valves or lines.
3. Accidental spills of materials while transporting containers between production
and warehouse areas, including flammable storage building, and the hot room
storage buildings.
Daily management walk-arounds are conducted to assess status of tanks and production
equipment. Work orders for needed improvements are recorded in computer system to be
repaired.
Employee Training
The Employee Education and Training Program is, designed to familiarize key employees with
the intent and components of the Storm-water Pollution Prevention Plan. Training is, provided
for employees involved in operations with the potential to affect Storm-water.
Topics included in the training session include:
■ General Storm-water awareness
■ How to use the Storm-water Pollution Prevention Plan
■ Chemical spill response procedures
■ Preventative maintenance
■ Inspection Procedures
■ Materials management practices
■ Good housekeeping measures
INTERNAL