NCS000093_Fact sheet binder_20240823

DEQ / DEMLR
FACT SHEET FOR NPDES INDUSTRIAL INDIVIDUAL
STORMWATER PERMIT DEVELOPMENT
Basic Information for Permit Issuance and Renewals:
Permit Writer/Date Brianna Young 8/21/2024
Permit Number NCS000093
Owner/Facility Name BRP US,Inc. /BRP US, Inc.
3365 (331524)/Aluminum foundries(except die
SIC(NAICS)Code/Category casting)
3471 (332813)/Electroplating,Plating,Polishing,
Anodizing, and Coloring
Basin Name/Sub-basin number French Broad/04-03-06
Receiving Stream/I UC UT to English Creek/060101080106
Stream Classification/Stream Segment C; Tr/7-2-42
Is the stream impaired on 303 d list]? No
Any TMDLs? No
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 9/30/2029
Comments on Draft Permit? See Section 6(below)
Section 1. Facility Activities and Process:
BRP US, Inc. is a lost foam aluminum casting foundry that manufactures aluminum castings used as
components for the manufacture of various finished products including outboard engine parts, fuel filter
housings, tamping devices, etc. Molten aluminum is cast into foam molds and surrounded by sand, then
the foam burned off. The aluminum castings are then cleaned. High pressure blasting is used to remove
burrs and to shape the parts to requisite tolerances. On certain machines, the grinding process is aided
with the use of a surfactant material. Finishing operations include impregnation, chrome conversion
coating, and limited wet machining. Chrome conversion coating occurs in a series of process tanks in
which aluminum castings are exposed to an alkaline wash, a deoxidizing bath, a chromic acid bath, and
a polymer seal bath. Minimal machining is performed using a soluble oil cutting fluid and high speed
tooling that is mounted in CNC machines.
Two hydraulic oil aboveground storage tanks (ASTs) are located under roof outside the production
building and totes and drums are stored inside buildings or inside storage containment buildings. The
site also contains a loading dock, shipping/receiving area, six(6) dust collectors (one for the aluminum
casting lines; one associated with sand storage for each casting line [two lines]; one for the regenerative
thermal oxidizer [RTO]; one for the sand reclamation system; and one for shot blast machines and sand
blast units). The facility has an open trash roll-off, an enclosed trash compactor, an open scrap metal
dumpster, a spent sand roll-off under canopy, and a metal chip dumpster under canopy.
Outfall SW001:
Drainage area consists of a 500-gallon hydraulic oil tank, a 250-gallon hydraulic oil tank, two (2) 288-
gallon diesel tanks, storage area, loading dock, shipping/receiving dock, cooling tower/main stack, sand
hopper, regenerative thermal oxidizer(RTO) stack and baghouse, dust collectors and sand pretreatment
area, scrap tubing/sheet metal, metal parts, empty drum storage, water storage tank,propane bottle fill
Page 1 of 6

area, electric substation, two (2)water bath vaporizers, scrap metal roll-off, trash compactor, trash roll-
off, spent sand roll-off, metal chip dumpster,pallets, containment buildings for hazardous waste, oil, and
coolants, storage area for equipment, empty drums, aluminum chips, and spent sand, and a detention
pond. Discharge is from the detention pond.
Additional Outfalls
Outfall SWO02:
Drainage area consists of a propane unloading area. No analytical monitoring is needed for this outfall,
however, qualitative monitoring is required.
Outfall SWO03:
Drainage area consists of three (3) 30,000-gallon propane tanks. No analytical monitoring is needed for
this outfall, however, qualitative monitoring is required.
Outfall SWO04:
Drainage area consists of a parking lot.
Outfall SWO05:
Drainage area consists of a parking lot.
Outfall SWO06:
Drainage area consists of roof drains.
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."
Page 2 of 6

Section 2. Monitoring Information and Compliance History:
• December 2018 to June 2023, benchmarks exceeded for:
o SW001: pH min not reached Ix
o Analytical data only provided for SW001
• No visual monitoring data provided for any outfalls
• Inspection not completed by DEMLR ARO before permit issuance
Threatened/Endangered Species:
There is a threatened species in the nearby vicinity of the discharge: Sharphead Darter(Etheostoma
acuticeps; NC status: T). Additional species of concern in the nearby vicinity include the Superb
Jewelwing (Calopteryx amata; NC status: SR), Timber Rattlesnake (Crotalus horridus; NC status: SC),
and Eastern Hellbender(Cryptobranchus alleganiensis alleganiensis; NC status: SC).
Section 3. Proposed Monitoring for Stormwater Discharges:
The Division considered potential pollutants from past and present industrial activities and data was
submitted for December 2018 to June 2023. Quantitative sampling included pH, TSS, and aluminum.
Parameters are based on potential pollutants in the drainage area, sampling results, and in some cases,
dependent upon future activities (e.g., ash removal through the drainage area). Below is a table of the
proposed monitoring for each outfall at the BRP US, Inc. site.
Outfall SWO01
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
H BASIS: Pollutant indicator and important to interpreting toxicity potential
p of metals.
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Standard monitoring parameter; Potential pollutant from
lubricants; Method 1664 SGT-HEM targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Standard monitoring parameter; Potential pollutant from drainage
area
Quarterly monitoring
COD BASIS: Discharge potential indicator
Total Aluminum 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 50 mg/L National Urban Runoff Program(NURP) Study, 1983;
Solids TSS Discharge to trout waters
H 6 s.u. —9 s.u. NC Water Quality Standard(Range)
Non-Polar Oil & Review of other state's daily maximum benchmark
Grease 15 mg/L concentration for this more targeted O&G;NC WQS that
EPA Method 1664 does not allow oil sheen in waters
SGT-HEM
COD 120 mg/L BPJ; Generally found at levels 4x BOD5 in domestic
wastewaters
Total Aluminum 750 /L '/2 FAV
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
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
Page 4 of 6

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)
• "No discharge" clarifications made
• Feasibility study requirement removed per updated stormwater program requirements
Page 5 of 6

• Annual online SWPPP certification requirement removed per updated stormwater program
requirements
• eDMR requirement updated
• Boilerplate language moved into body of the permit; boilerplate no longer attached
• Outfall-specific monitoring been implemented to reflect industrial activity and potential
pollutants specific to each discharge area
• Monitoring for COD added due to presence of chemicals 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: 1/4/2024
• Initial contact with Regional Office: 1/4/2024
• Draft sent to CO peer review: N/A
• Draft sent to Regional Office: 4/10/2024
• Final permit sent for supervisor signature: N/A
Section 7. Comments received on draft permit:
• None
Page 6 of 6

LocaliQ
Georgia/North Carolina PO Box 631697 Cincinnati, OH 4.5263-1697
South Carolina
GANNETT
AFFIDAVIT OF PUBLICATION NORTH CAROLINA ENVIRONMENTAL
MANAGEMENT COMMISSION INTENT TO ISSUE
NPDES STORMWATER DISCHARGE PERMITS
Joyce Sanford The North Carolina Environmental Management Commis-
Brianna Young sion proposes to issue NPDES stormwater discharge
NCDEQ/P�EMLIL permit(s) to the persort(s) listed below. Public comment or
abjection to the draft permits is invited. Written comments
1612 Mail Service Center regarding the proposed permit wil3 be accepted until 30 days
Raleigh NC 27699-1612 otter the publish date of this notice and considered in the
final delermi not foil regarding permit issuance and permit
Provisions. The director of the NC Division of Energy,
Mimral, and Lond Resources (DFML.R) may hold a Public
SPATE OF WISCOIVSIN,COUNTY OF BROWN hearing should there be a significant degree of public inter-
est. Please mail comments ondlor information requests to
DEMLR at 1412 Mail Service Center, Raleigh, NC 27699•
1612.
Before the undersigned,a Notary Public,duly
8RP US, Inc. [1211 Greenwood Road, Spruce Pine, NC
commissioned, qualified and authorized by law to 287771 has requested renewal of permit SO 093 for the
administer oaths,personally eared said legal clerk who BRP US, Inc. facility in Mitchell coup lacility
P Y appeared g , discharges to an unnamed tributary to English Creek in the
being first duly sworn, deposes and says: that he/she is the French Broad River Basin,
legal clerk of The Asheville Citizen-Times,engaged in Interested persons may visit DEMLR at 512 N. Salisbury
Street, Raleigh, NC 27604 to review information on file.
publication of a newspaper known as The Asheville Citizen- Additional information on NPDES permits and this notice
may be found on our website:
Times, published, issued and entered as first class mail in htfps:ftdeq.nc.gov/abauf/divisions)energy-minerol-and-land
the city of Asheville, in Buncombe County,State of North resources/stormwater/slormwater-Progromistarmwater-
pubtic$notices, or by contacting Brionno Young
Carolina;that he/she is authorized to make this affidavit at brionna.youn9_Qgeq.nc g.Qv or 919-707-3647.
S/29/2024 410213182
and sworn statement;that the notice or other legal
advertisement, a true copy of which is attached here to,
was published in said newspaper in the issues dated:
05/29/2024
That said newspaper in which said notice,paper, document
or legal advertisement was published was,at the time of
each and every publication, a newspaper meeting all the
requirements and qualifications of Section 1-597 of the
General Statutes of North Carolina.
Sworn to and subscribed before on 05/29/2024
\—//
&� J
Legal Clerk
Notary,State of Wl,County of Brown
My commission expires
Publication Cost: $167.48
'Pax Amount: $0.00
Payment Cost: $167.48
Order No: 10213182 #of Copies:
Customer No: 948986 2
PO#:
THIS IS NOT AN INVOICE!
Please do not use this form for paymenr rcnivance.
DENISE ROBERTS Pagel of 1
Notary Public
State of Wisconsin

BRP US Inc.
1211 Greenwood Road
Spruce Pine,North Carolina
USA 28777
T 828.766.1100 F 828.765.2391
4 www.brp.com
Bombardier Recreational Products
February 7,2024
Ms.Brianna Young,Individual Permit Coordinator
NCDEQ-Division of Energy,Mineral,and Land Resources
Raleigh Central Office
1612 Mail Service Center
Raleigh,NC 27699-1612
919.707.3647
[e-mail]
RE: BRP US,Inc.-Spruce Pine,Mitchell County,NC
NPDES Permit NCS000093
Renewal Application-Supplemental Information
Dear Ms.Young:
BRP US,Inc. (BRP) operates a lost foam aluminum casting facility in Spruce Pine,Mitchell County,
North Carolina under the NPDES(National Pollutant Discharge Elimination System)Industrial
Stormwater Program,Permit Number NCS000093. A permit renewal application was submitted
previously,and as you requested,supplemental information is included with this letter as follows:
• Updated Tables B and D-see Attachment;
• Description of chemicals stored onsite-Expandable polystyrene,foam coatings,metal
finishing chemicals,lubricating oils,nitric acid,and sulfuric acid in batteries. Note that paints
and solvents are no longer used in the manufacturing process;
• Confirmation of the type of scrap metal kept onsite-Scrap metal includes aluminum and steel;
• An electronic spreadsheet summarizing all of the monitoring data that has been collected since
the effective date of the current permit-See Excel file provided via e-mail;
• Verification that the information in the renewal application is still complete and correct-The
renewal application submitted on 8/24/23 and in this supplemental package is complete and
correct;and
• An explanation of any operational changes since the renewal application was submitted-
There have been no operational changes since the renewal application was submitted on
8/24/23.
This submission certifies the truth,accuracy and completeness of the content of this report. If you have
any questions or need additional information,please contact Aaron Jenkins,EHS&S Coordinator,at
828.766.1185 or [e-mail] or Judy Hoff of ERM NC,Inc.at 615.319.4284.
Sincerely,
Curtis Taylor
Site Leader Ski-Doo
Lynx
Sea-Doo
Attachment Evinrude
cc w Attachment: Aaron Jenkins,BRP Johnson
/ J Rotax
Bombardier ATV

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Analytical Analytical Analytical
Results Results Results
Greater than
Discharge Discharge Discharge Discharge Measurement Sample Discharge Benchmark
Date Characteristic Characteristic Characteristic Characteristic Frequency Type Characteristic Values?
TSS 50
Stormwater Total Total Non-Polar Oil& pH 6-9
Discharge Outfall Suspended Recoverable Grease(SGT- AI None
Location Solids(TSS) pH Aluminum(AI) Total Rainfall HEM) SGT-HEM 15
mg/L Standard ug/L inches mg/L
Year 1 Period 1,July 1-December 31,2018
12/14/2018 Outfall1 3.6 6.7 181 1.22 Semiannual Grab No
Year 1 Period 2,January 1-June 30,2019
5/2/2019 OutfallI ND 6.5 ND 1.36 Semiannual Grab No
Year 2 Period 1,July 1-December 31,2019
Not available in Not available in Not available in Not available in
Not available in facility files Outfall 1 facility files facility files facility files facility files Semiannual Grab Unknown
Year 2 Period 2,January 1-June 30,2020
6/4/2020 Outfall1 3.2 6.4 ND 0.26 Semiannual Grab No
Year 3 Period 1,July 1-December 31,2020
10/24/2020 Outfall1 3.0 6.5 ND 0.52 Semiannual Grab No
Year 3 Period 2,January 1-June 30,2021
5/25/2021 Outfall1 5.8 5.4 ND 0.17 Semiannual Grab No
Year 4 Period 1,July 1-December 31,2021
11/11/2021 Outfall1 7.3 6.8 213 0.83 Semiannual Grab No
Year 4 Period 2,January 1-June 30,2022
6/8/2022 Outfall 1 6.2 6.2 116 Not available Semiannual Grab No
Year 5 Period 1,July 1-December 31,2022
Not available in Not available in Not available in Not available in
Not available in facility files Outfall 1 facility files facility files facility files facility files Semiannual Grab Unknown
Year 5 Period 2 January 1-June 30,2023
6/20/2023 Outfall1 13.6 6.6 328 1.81 Semiannual Grab No
Year 6 Period 1,July 1-December 31,2023
1/9/2024 Outfall4 8.3 6.7 233 0.78 Semiannual Grab ND No
AVERAGE 6.38 6.4 214.2 0.87 Semiannual Grab ND
MAXIMUM 13.6 6.8 328 1.81 Semiannual Grab ND
MINIMUM 3.0 5.4 116 0.17 Semiannual Grab ND
BENCHMARK 50 6-9 None Semiannual Grab 15
Notes:
ND=Not detected
Rainfall amounts available from facility rain gauge or from NCDC Daily Summaries for Spruce Pine,NC,climate stations.
Records of samples for Year 2 Period 1 and Year 5 Period 1 have not been found in facility files,perhaps due to employee turnover.
Samples for Year 6 Period 1 are included based on sample collected 1/9/2024.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative
Results Results Results Results Results Results Results Results Results Results Results
Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge Monitoring
Date Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Frequency Sample Type
Other obvious
Erosion or indicators of
Stormwater Discharge Outfall Suspended deposition at stormwater
Location Color Odor Clarity Floating Solids Solids Foam Oil Sheen the outfall pollution
Year 1 Period 1,July 1-December 31,2018
12/14/2018 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 1 Period 2,January 1-June 30,2019
5/2/2019 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 2 Period 1,July 1-December 31,2019
Not available in facility files SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 2 Period 2,January 1-June 30,2020
6/4/2020 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 3 Period 1,July 1-December 31,2020
10/24/2020 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 3 Period 2,January 1-June 30,2021
5/25/2021 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 4 Period 1,July 1-December 31,2021
11/11/2021 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 4 Period 2,January 1-June 30,2022
6/8/2022 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 5 Period 1,July 1-December 31,2022
Not available in facility files SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 5 Period 2,January 1-June 30,2023
6/20/2023 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 6 Period 1 July 1-December 31,2023
No visible
suspended
1/9/2024 SDO 1-6 No color No odor Clear None solids No foam None None None Semiannual Grab
Notes:
Records of samples for Year 2 Period 1 through Year 5 Period 2 have not been found in facility files,perhaps due to employee turnover.
Samples for Year 6 Period 1 are included based on sample collected 1/9/2024.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Stormwater Discharge Outfall
Location Stormwater Exposure Item Location Best Management Practices(BMPs) Additional BMPs
SDO 1 500-gal Hydraulic oil tank SE of Production Bldg Tank located under roof;secondary containment
250-gal Hydraulic oil tank SE of Production Bldg Tank located under roof;secondary containment
Scrap tubing/sheet metal SE of Production Bldg Stored outside Store inside building
Miscellaneous storage SE of Production Bldg Stored outside Store inside building
Loading dock E side of Production Bldg Covered
Scrap metal roll-off E side of Production Bldg Sweep around roll-off on a frequent basis Cover the roll-off
Trash compactor E side of Production Bldg Enclosed
30-Cubic yard trash roll-off E side of Production Bldg Sweep around roll-off on a frequent basis Cover the roll-off
Two 288-gal Diesel tanks E side of Production Bldg Tanks located inside Pump House Bldg
Spent sand roll-off E side of Production Bldg Covered by a canopy and equipped with curbing
Metal chip dumpster E side of Production Bldg Covered by a canopy and equipped with curbing
Equipment storage E side of Production Bldg Covered by canopy and equipped with curbing
Containment Bldgs for storage
of waste,oil,coolants NE of Production Bldg Enclosed
Pallets NE of Production Bldg Stored outside Limit number of pallets stored outside
Metal parts NE of Production Bldg Stored outside Store inside building
Monitor use of chemicals in cooling tower water
Cooling tower NE of Production Bldg and monitor containment for leaks
Dust collectors and sand Routinely sweep and properly dispose of dust
pretreatment area NE side of Production Bldg (particulates)
Regenerative thermal oxidizer Routinely sweep and properly dispose of dust
(RTO)stack and baghouse NE side of Production Bldg (particulates)
Shipping/Receiving Dock NE side of Production Bldg Monitor by BRP employee
Sand hopper E side of Production Bldg Sweep around hopper on a frequent basis
SDO 2 Propane unloading area NE side of Production Bldg Pressurized unloading
SDO 3 Propane tanks NE side of Production Bldg Pressurized tanks
SDO 4 Employee parking area SW of Production Bldg SPPP,training,etc.
SDO 5 Employee parking area SW of Production Bldg SPPP,training,etc.
SDO 6 Roof SE of Production Bldg Use of control equipment(dust collectors,RTC)
Notes:
Best Management Practices(BMPs)are described in the BRP Stormwater Pollution Prevention Plan(SPPP)in facility files.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Changes Since Previous Permit Issuance Description of Changes Location Best Management Practices(BMPs) Suggested Improvements to BM Ps
No changes related to stormwater have
occurred None None None None
Notes:
No changes related to stormwater have occurred at the facility since the previous NPDES permit was issued.
Minor modifications to operations(more related to air quality)have included or will include the following:
Replaced the CD-1 bagfilter because the existing bagfilter was underrated and at the end of its service life.The replacement bagfilter is a Donaldson DFE 4-32 Dust Collector,which contains
32 ultra-web cartridge filters with a filter area of 8,128 square feet,a differential pressure meter,and an effective cleaning system.
Venting the following insignificant natural gas-fired ovens through the building roof rather than exhausting inside the manufacturing building,both to meet National Fire Protection
Association(NFPA)requirements and to improve indoor air quality:
*ES-17,Heat Treat No.1 Solution Oven for Cast Line No.1,3.0 MMBtu/hr capacity;
*ES-18,Heat Treat No.3 Solution Oven for Cast Line No.2,3.0 MMBtu/hr capacity;
*ES-30,Age Oven No.1(AO-01),1.0 MMBtu/hr capacity;
*ES-31,Age Oven No.2(AO-02),1.0 MMBtu/hr capacity;and
*ES-38,Age Oven No.3(AO-03),1.0 MMBtu/hr capacity.
Removed ES-47,Paint Spray Booth and Associated Bake Oven(3.0 MMBtu/hr capacity),since painting is done off-site by a vendor.As a result,this source has been removed from the facility.
Added Dehumidifiers#1 and#2 for the Styrofoam Drying ovens.
Replaced the Emergency Generator.
Replaced the CD-16 bagfilter because the existing bagfilter was underrated and at the end of its service life.
Removed ES-44,Boiler#2(14.7 MMBtu/hr capacity),since Boiler#1 is larger and sufficient for plant operation.

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
Form U.S Environmental Protection Agency
2F 1W. �� Application for NPDES Permit to Discharge Wastewater
NPDES STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
SECTIONOUTFALL LOCATIONt
1.1 Provide information on each of the facilit 's outfalls in the table below
Outfall Receiving Water Name Latitude Longitude
Number
SDO 1 English Creek 35* 54' 38.88" 82° 5' 25.8"
c
0
SDO 2 English Creek 35° 54' 39.6" 82° 5' 30.84"
0
J
SDO 3 English Creek 35° 54' 41.76" 82' 5' 27.96"
0 SDO 4 English Creek 35' 54' 32.4" 82' 5' 32.28"
SDO 5 English Creek 35' 54 32.4" 82' S 30.84"
SDO 6 English Creek 35' 54 30.96" 82' 5' 28.68"
SECTION '• I
2.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes ❑✓ No 4 SKIP to Section 3.
2.2 Briefly identify each applicable project in the table below.
Brief Identification and Affected Outfalls Source(s)of Discharge Final Compliance Dates
Description of Project (list outfall numbers)
Required Projected
Not applicable,N/A
c
m
E
a�
0
L
Q
E
2.3 Have you attached sheets describing any additional water pollution control programs(or other environmental projects
that may affect your discharges)that you now have underway or planned?(Optional Item)
❑ Yes ❑✓ No
EPA Form 3510-2F(Revised 3-19) Pagel

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
SECTIOND' I
a� 3.1 Have you attached a site drainage map containing all required information to this application?(See instructions for
.2 _ CL R specific guidance.)
N iE M
In ® Yes ❑ No
SECTIONPOLLUTANT SOURCESI
4.1 Provide information on the facility's pollutant sources in the table below.
Outfall Impervious Surface Area Total Surface Area Drained
Number (within a mile radius of the facility) (within a mile radius of the facility)
specify units specify units
SDO 1 244,000 sq ft 306,000 sq ft
specify units specify units
SDO 2 25,200(road,undeveloped) sq ft 50,400 sq ft
specify units specify units
SDO 3 9,500(undeveloped) sq ft 189,000 sq ft
specify units specify units
SDO 4 17,200(parking area) sq ft 28,700 sq ft
specify units specify units
SDO 5 22,300(parking area) sq ft 44,600 sq ft
specify units specify units
SDO 6 33,300(roof drainage) sq ft 111,100 sq ft
4.2 Provide a narrative description of the facility's significant material in the space below. (See instructions for content
requirements.)
Two hydraulic oil aboveground storage tanks(ASTs)are located under roof outside the production building. Totes and
drums are stored inside buildings or inside storage containment buildings located east of the production building. A
cloading dock is located at the southeastern building wall,and a shipping/receiving area is located at the northeastern
N building wall. Six(6)dust collectors are located along the northeastern building wall: one for the aluminum casting
lines;one associated with sand storage for each casting line(two lines);one for the regenerative thermal oxidizer
0
(RTO);one for the sand reclamation system;and one for shot blast machines and sand blast units. The facility has an
a open trash roll-off,an enclosed trash compactor,an open scrap metal dumpster,a spent sand roll-off under canopy,
and a metal chip dumpster under canopy. Fertilizers,pesticides,herbicides are used by knowledgable landscapers.
4.3 Provide the location and a description of existing structural and non-structural control measures to reduce pollutants in
stormwater runoff. See instructions for specificguidance.)
Stormwater Treatment
Codes
Outfall from
Number Control Measures and Treatment Exhibit
2F-1
list
SDO 1 Plant activities-docks and equipment storage-covered,retention pond(structural) N/A
SDO 2 Undeveloped area with propane unloading-pressurized propane(non-structural) N/A
SDO 3 Undeveloped area with propane tanks-pressurized tanks(non-structural) N/A
SDO 4 Parking areas-SPPP,training,housekeeping(non-structural) N/A
SDO 5 Parking areas-SPPP,training,housekeeping(non-structural) N/A
SDO 6 Building roof-SPPP,training,housekeeping(non-structural) N/A
EPA Form 3510-2F(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
SECTION •N STORMWATER 1 I
5.1 I certify under penalty of law that the outfall(s) covered by this application have been tested or evaluated for the
presence of non-stormwater discharges. Moreover, I certify that the outfalls 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
Curtis Taylor Plant Manager
Signature Date signed
tp
tM 5.2 Provide the testing information requested in the table below.
Onsite Drainage Points
Outfall
A Description of Testing Method Used Date(s)of Testing Directly Observed
o Number
L During Test
d
R
SDO 1 Visual evaluation 07/26/2023 Outfall 1
E
O
N
c SDO 2 Visual evaluation 07/26/2023 Outfall 2
0
z
SDO 3 Visual evaluation 07/26/2023 Outfall 3
SDO 4 Visual evaluation 07/26/2023 Outfall 4
SDO 5 Visual evaluation 07/26/2023 Outfall 5
SDO 6 Visual evaluation 07/26/2023 Outfall 6
SECTIONOR I
6.1 Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
tp
.Q No leaks or spills have occurred during the last three(3)years.
Cn
0
a
m
J
C
!Q
V
w
a1
co
SECTIONDISCHARGE INFORMATIONI
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables you must
0 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
d
estimated data. actual data.
Tables A,B,C,and D
y 7.2 Have you completed Table A for each outfall?
❑✓ Yes ❑ No
EPA Form 3510-2F(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
110012281627 NCS000093 BRP US Inc. 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 + 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?
❑J 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-+ SKIP to Item 7.7.
7.6 Have you listed all pollutants in Exhibit 2F-2 that you know or have reason to believe are present in the discharge and
provided quantitative data or an explanation for those pollutants in Table C?
✓❑ Yes ❑ No
7.7 Do you qualify for a small business exemption under the criteria specified in the Instructions?
❑ Yes 4SKIP to Item 7.18. ❑✓ No
7.8 Do you know or have reason to believe any pollutants in Exhibit 2F-3 are present in the discharge?
❑ Yes ❑✓ No-+ 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
Table C?
❑ Yes ❑ No
0 7.10 Do you expect any of the pollutants in Exhibit 2F-3 to be discharged in concentrations of 10 ppb or greater?
E ❑ Yes ❑✓ No-* SKIP to Item 7.12.
0
7.11 Have you provided quantitative data in Table C for those pollutants in Exhibit 2F-3 that you expect to be discharged in
concentrations of 10 ppb or greater?
❑ Yes ❑ No
7.12 Do you expect acrolein,acrylonitrile,2,4-dinitrophenol,or 2-m ethyl-4,6-dinitrophenol to be discharged in concentrations
of 100 ppb or greater?
❑ Yes ❑✓ No-+ 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?
❑ Yes ❑✓ No-+ SKIP to Item 7.17.
7.16 Have you listed pollutants in Exhibit 2F-4 that you know or believe to be present in the discharge and provided an
explanation in Table C?
❑ Yes ❑ No
7.17 Have you provided information for the storm event(s)sampled in Table D?
❑ Yes ✓❑ No
EPA Form 3510-2F(Revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
Used or Manufactured Toxics
7.18 Is any pollutant listed on Exhibits 2F-2 through 2F-4 a substance or a component of a substance used or
C manufactured as an intermediate or final product or byproduct?
0
❑✓ Yes ❑ No SKIP to Section 8.
0
7.19 List the pollutants below,including TCDD if applicable.
E
O
5 1.Total Recoverable Aluminum 4. 7.
m
2. 5. 8.
0 3. 6. 9.
SECTION • • • i
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?
0
.N
❑ Yes ❑✓ No 4 SKIP to Section 9.
8.2 Identify the tests and their purposes below.
Submitted to NPDES
Tests) Purpose of Test(s) Date Submitted
,� PermittingAuthority?
0
~ ❑ Yes ❑ No
R
V
M
0
El Yes El No
m
❑ Yes ❑ No
SECTION • •- • i
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,LLC Pace Analytical Services,LLC Pace Analytical
o Services,LLC
E
L
O
Laboratory address
M 110 Technology Parkway 2225 Riverside Drive 9800 Kincey Avenue,
Peachtree Corners,GA 30092 Asheville,NC 28804 Suite 100
�a
Q Huntersville,NC 28078
i�
R
L
o Phone number
v [phone] [phone] [phone]
Pollutant(s)analyzed
Total Recoverable Aluminum Total Suspended Solids Oil and Grease
pH
Total Nitrogen
Total Kjeldahl Nitrogen
Nitrogen,NO2 plus NO3
Phosphorus
EPA Form 3510-2F(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
SECTION I I
10.1 In Column 1 below,mark the sections of Form 2F that you have completed and are submitting with your application. For
each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
❑' Section 1 ❑ wl attachments(e.g.,responses for additional outfalls)
❑� Section 2 ❑ wl attachments
❑' Section 3 ❑ wl site drainage map
❑' Section 4 ❑ wl attachments
❑' Section 5 ❑ wl attachments
❑' Section 6 ❑ wl attachments
E ❑� Section 7 ❑✓ Table A ❑ wl small business exemption request
R
N
c ✓❑ Table B ❑ wl analytical results as an attachment
✓❑ Table C ✓❑ Table D
❑� Section 8 ❑ wlattachments
ti ❑� Section 9 ❑ wlattachments(e.g., responses for additional contact laboratories or firms)
Y
L ❑� Section 10 ❑
U
10.2 Certification Statement
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible
for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. 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
Curtis Taylor Plant Manager
Signature Date signed
EPA Form 3510-2F(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110012281627 NCS000093 BRP US Inc. SDO 1(Representative) OMB No.2040-0004
TABLE A.CONVENTIONAL AND NON CONVENTIONALI
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
(specify units) (specify units) Number of Storm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new source/new
During First Flow-Weighted During First Flow-Weighted Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite )
codes in instructions
1. Oil and grease ND ND 1 5-Actual data
2. Biochemical oxygen demand(BOD5) Not applicable Comp.not reqd. Not applicable Comp.not reqd. None N/A
3. Chemical oxygen demand(COD) Not applicable Comp.not reqd. Not applicable Comp.not reqd. None N/A
4. Total suspended solids(TSS) 13.6 mg/L Comp.not reqd. 6.4 mg/L Comp.not reqd. 9 5-Actual data
5. Total phosphorus ND Comp.not reqd. ND Comp.not reqd. 1 5-Actual data
6. Total Kjeldahl nitrogen(TKN) 0.60 mg/L Comp.not reqd. 0.60 mg/L Comp.not reqd. 1 5-Actual data
7. Total nitrogen(as N) 0.63 mg/L Comp.not regd. 0.63 mg/L Comp.not reqd. 1 5-Actual data
pH(minimum) 5.4 6.4 9 5-Actual data
8.
pH(maximum) 6.8 6.4 9 5-Actual data
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 3510-21F(Revised 3-19) Page 7

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110012281627 NCS000093 BRP US Inc. SDO 1(Representative) OMB No.2040-0004
TABLE B.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.26(c)(1)(i)(E)(4)and 40 CIFIR 1122.211(g)(7)(vi)(A))'
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 Daily Discharge Average Daily Discharge Source of
(specify units) (specify units) Number of Storm Information
Pollutant and CAS Number(if available) Grab Sample Taken Grab Sample Taken (new source/new
During First Flow-Weighted During First Flow-Weighted Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instructions)
Oil and Grease ND Comp.not reqd. ND Comp.not reqd. 1 5-Actual data
Total Suspended Solids(TSS) 13.6 Comp.not reqd. 6.38 Comp.not reqd. 9 5-Actual data
Total Recoverable Aluminum(AI) 328 Comp.not reqd. 214.2 Comp.not reqd. 9 5-Actual data
Phosphorus ND Comp.not reqd. ND Comp.not reqd. 1 5-Actual data
Nitrogen,Kjeldahl,Total 0.60 Comp.not reqd. 0.60 Comp.not reqd. 1 5-Actual data
Total Nitrogen 0.63 Comp.not reqd. 0.63 Comp.not reqd. 1 5-Actual data
Nitrogen,NO2 plus NO3 ND Comp.not reqd. ND Comp.not reqd. 1 5-Actual data
pH(minimum) 5.4 Comp.not reqd. 6.4 Comp.not reqd. 9 5-Actual data
pH(maximum) 6.8 Comp.not reqd. 6.4 Comp.not reqd. 9 5-Actual data
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 3510-21F(Revised 3-19) Page 9

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110012281627 NCS000093 BRP US Inc. SDO 1(Representative) OMB No.2040-0004
TABLE C.TOXIC POLLUTANTS,CERTAIN HAZARDOUS SUBSTANCES,AND ASBESTOS(40 CFR 122.26(c)(1)(l)(E)(4)and 40 CFR 122.21(g)(7)(vi)(B)and(vil))'
List each pollutant shown in Exhibits 2F-2,2F-3,and 2F-4 that you know or have reason to believe is present.Complete one table for each outfall.See the instructions for additional
details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
s ecify units) s ecify units) Number of Storm Information
Pollutant and CAS Number(if available) Grab Sample Taken Grab Sample Taken (new source/new
Comosite
During First Flow-Weighted During First Flow-Weighted Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes p codes in instructions)
Total Recoverable Aluminum 328 ug/L Comp.not reqd. 214.2 ug/L Comp.not reqd. 9 5-Actual data
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 3510-21F(Revised 3-19) Page 11

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility name Outfall Number Form Approved 03/05/19
110012281627 NCS000093 BRP US Inc. SDO 1(Representative) OMB No.2040-0004
STORMTABLE D. • ' • I
Provide data for the storm event(s)that resulted in the maximum daily discharges for the flow-weighted composite sample.
Number of Hours Between
Total Rainfall During Maximum Flow Rate
Duration of Storm Event (in inches) Beginning of Storm Measured and (in gpm or specify units) Total Flow from Rain Event
Date of Storm Event (in hours) Storm Event End of Previous Measurable Rain During Rain Event (in gallons or specify units)
Event
06/20/2023
3 hrs(estimated) 1.81 193 hrs(estimated) 1,530 gpm 275,308 gal
Provide a description of the method of flow measurement or estimate.
Flow rate is estimated from 1.81 inches during rainfall event,estimated to continue for 3 hrs. Impervious area of SDO 1 is estimated to be 244,000 sq ft. So,to calculate flow see below:
1.81 inches/12 inches/ft=0.150833 ft depth of rainfall
0.150833 ft x 244,000 sq ft=36,803.33 cu ft rainfall
36,803.33 cu ft x 7.48052 gal/cu ft=275,308 gal for rainfall event
275,308 gal/3 hrs x 1 hr/60 min=1,539.5 gal/min=1,540 gpm
Click to go back to the beginning of Form
EPA Form 3510-21F(Revised 3-19) Page 13

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
January 23, 2024
Aaron Jenkins
BRP US INC.- Spruce Pine
1211 Greenwood Rd.
Spruce Pine, NC 28777
RE: Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
Dear Aaron Jenkins:
Enclosed are the analytical results for sample(s)received by the laboratory on January 09, 2024. The results relate only to
the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual,where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services-Asheville
• Pace Analytical Services-Charlotte
• Pace Analytical Services- Peachtree Corners, GA
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Tyriek Hooks
[e-mail]
704-977-0947
Project Manager
Enclosures
�pQ ACcr?FO
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
9eU without the written consent of Pace Analytical Services,LLC. Page 1 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
(-� ace Asheville,NC 28804
[phone]
CERTIFICATIONS
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
Pace Analytical Services Charlotte
South Carolina Laboratory ID:99006 South Carolina Certification#:99006001
9800 Kincey Ave.Ste 100,Huntersville,NC 28078 South Carolina Drinking Water Cert.#:99006003
North Carolina Drinking Water Certification#:37706 Florida/NELAP Certification#: E87627
North Carolina Field Services Certification#:5342 Kentucky UST Certification#:84
North Carolina Wastewater Certification#: 12 Louisiana DoH Drinking Water#:LA029
South Carolina Laboratory ID:99006 Virginia/VELAP Certification#:460221
Pace Analytical Services Asheville
2225 Riverside Drive,Asheville,NC 28804 South Carolina Laboratory ID:99030
Florida/NELAP Certification#: E87648 South Carolina Certification#:99030001
North Carolina Drinking Water Certification#:37712 Virginia/VELAP Certification#:460222
North Carolina Wastewater Certification#:40
Pace Analytical Services Peachtree Corners
110 Technology Pkwy, Peachtree Corners,GA 30092 North Carolina Certification#:381
Florida DOH Certification#:E87315 South Carolina Certification#:98011001
Georgia DW Inorganics Certification#:812 Virginia Certification#:460204
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 2 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
SAMPLE ANALYTE COUNT
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
Analytes
Lab lD Sample ID Method Analysts Reported Laboratory
92707469001 OUTFALL 4 EPA 1664E DVR 1 PASI-C
EPA200.8 MT1 1 PASI-GA
SM 2540D-2015 RVS 1 PASI-A
EPA 9040C YEG 1 PASI-A
TKN+NO3+NO2 Calculation MDW 1 PASI-A
EPA 351.2 Rev 2.0 1993 MFO 1 PASI-A
EPA 353.2 Rev 2.0 1993 NCF 1 PASI-A
EPA 365.1 Rev 2.0 1993 EGC 1 PASI-A
PASI-A=Pace Analytical Services-Asheville
PASI-C=Pace Analytical Services-Charlotte
PASI-GA=Pace Analytical Services-Peachtree Corners,GA
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 3 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
ANALYTICAL RESULTS
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
Sample: OUTFALL4 Lab ID: 92707469001 Collected: 01/09/2412:05 Received: 01/09/2412:25 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
Field Data Analytical Method:
Pace Analytical Services-Charlotte
Performed by Pace 1 01/10/24 10:45
Collected By Sarah 1 01/10/24 10:45
Kline
Collected Date 1/9/24 1 01/10/24 10:45
Collected Time 12:05 1 01/10/24 10:45
pH 6.87 Std.Units 1 01/10/24 10:45
Temperature 2.8 deg C 1 01/10/24 10:45
HEM,Oil and Grease Analytical Method: EPA 1664E
Pace Analytical Services-Charlotte
Oil and Grease ND mg/L 5.3 1 01/23/24 10:43
200.8 ATL ICPMS Analytical Method: EPA 200.8 Preparation Method: EPA 200.8
Pace Analytical Services-Peachtree Corners,GA
Aluminum 233 ug/L 100 1 01/11/24 09:29 01/11/24 17:26 7429-90-5
2540D Total Suspended Solids Analytical Method:SM 2540D-2015
Pace Analytical Services-Asheville
Total Suspended Solids 8.3 mg/L 2.8 1 01/09/24 20:10
9040 pH Analytical Method: EPA 9040C
Pace Analytical Services-Asheville
pH at 25 Degrees C 6.7 Std.Units 0.10 1 01/13/24 15:04 H3
Total Nitrogen Calculation Analytical Method:TKN+NO3+NO2 Calculation
Pace Analytical Services-Asheville
Total Nitrogen 0.63 mg/L 0.040 1 01/21/24 12:51
351.2 Total Kjeldahl Nitrogen Analytical Method: EPA 351.2 Rev 2.0 1993 Preparation Method: EPA 351.2 Rev 2.0 1993
Pace Analytical Services-Asheville
Nitrogen, Kjeldahl,Total 0.60 mg/L 0.50 1 01/17/24 18:07 01/18/24 06:02 7727-37-9
353.2 Nitrogen,NO2/NO3 pres. Analytical Method: EPA 353.2 Rev 2.0 1993
Pace Analytical Services-Asheville
Nitrogen, NO2 plus NO3 ND mg/L 0.040 1 01/20/24 03:04
365.1 Phosphorus,Total Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
Pace Analytical Services-Asheville
Phosphorus ND mg/L 0.050 1 01/17/2417:14 01/18/2411:33 7723-14-0
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 4 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALITY CONTROL DATA
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
QC Batch: 826985 Analysis Method: EPA 1664B
QC Batch Method: EPA 1664E Analysis Description: 1664 HEM,Oil and Grease
Laboratory: Pace Analytical Services-Charlotte
Associated Lab Samples: 92707469001
METHOD BLANK: 4276277 Matrix: Water
Associated Lab Samples: 92707469001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Oil and Grease mg/L ND 5.0 01/23/24 10:43
LABORATORY CONTROL SAMPLE: 4276278
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Oil and Grease mg/L 40 32.9 82 78-114
MATRIX SPIKE SAMPLE: 4276279
92707469001 Spike MS MS %Rec
Parameter Units Result Conc. Result %Rec Limits Qualifiers
Oil and Grease mg/L ND 40 32.7 80 78-114
SAMPLE DUPLICATE: 4276280
92708005002 Dup
Parameter Units Result Result RPD Qualifiers
Oil and Grease mg/L ND ND
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 5 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALITY CONTROL DATA
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
QC Batch: 824592 Analysis Method: EPA 200.8
QC Batch Method: EPA 200.8 Analysis Description: 200.8 ATL
Laboratory: Pace Analytical Services-Peachtree Corners,GA
Associated Lab Samples: 92707469001
METHOD BLANK: 4265148 Matrix: Water
Associated Lab Samples: 92707469001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Aluminum ug/L ND 100 01/11/2414:33
LABORATORY CONTROL SAMPLE: 4265149
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Aluminum ug/L 1000 1030 103 85-115
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4265559 4265560
MS MSD
92707291001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Aluminum ug/L ND 1000 1000 1120 1140 105 107 70-130 2
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4265561 4265562
MS MSD
92707291007 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Aluminum ug/L ND 1000 1000 1120 1100 108 107 70-130 1
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 6 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALITY CONTROL DATA
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
QC Batch: 824396 Analysis Method: SM 2540D-2015
QC Batch Method: SM 2540D-2015 Analysis Description: 2540D Total Suspended Solids
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92707469001
METHOD BLANK: 4264267 Matrix: Water
Associated Lab Samples: 92707469001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Suspended Solids mg/L ND 2.5 01/09/24 20:03
LABORATORY CONTROL SAMPLE: 4264268
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Total Suspended Solids mg/L 250 244 98 90-110
SAMPLE DUPLICATE: 4264269
92707278001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 297 229 26 D6
SAMPLE DUPLICATE: 4264274
92707357001 Dup
Parameter Units Result Result RPD Qualifiers
Total Suspended Solids mg/L 765 745 3
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 7 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALITY CONTROL DATA
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
QC Batch: 825371 Analysis Method: EPA 9040C
QC Batch Method: EPA 9040C Analysis Description: 9040 pH
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92707469001
SAMPLE DUPLICATE: 4269212
92708014003 Dup
Parameter Units Result Result RPD Qualifiers
pH at 25 Degrees C Std. Units 8.0 7.9 0 H3
SAMPLE DUPLICATE: 4269213
92708063001 Dup
Parameter Units Result Result RPD Qualifiers
pH at 25 Degrees C Std. Units 7.9 7.9 0 H3
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 8 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALITY CONTROL DATA
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
QC Batch: 826061 Analysis Method: EPA 351.2 Rev 2.0 1993
QC Batch Method: EPA 351.2 Rev 2.0 1993 Analysis Description: 351.2 TKN
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92707469001
METHOD BLANK: 4271948 Matrix: Water
Associated Lab Samples: 92707469001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Nitrogen, Kjeldahl,Total mg/L ND 0.50 01/18/24 05:51
LABORATORY CONTROL SAMPLE: 4271949
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Nitrogen, Kjeldahl,Total mg/L 10 10.6 106 90-110
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4271950 4271951
MS MSD
92707381001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Nitrogen, Kjeldahl,Total mg/L 27.1 10 10 41.6 43.7 145 167 90-110 5 M1
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 9 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALITY CONTROL DATA
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
QC Batch: 826462 Analysis Method: EPA 353.2 Rev 2.0 1993
QC Batch Method: EPA 353.2 Rev 2.0 1993 Analysis Description: 353.2 Nitrate+Nitrite,preserved
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92707469001
METHOD BLANK: 4273791 Matrix: Water
Associated Lab Samples: 92707469001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Nitrogen, NO2 plus NO3 mg/L ND 0.040 01/20/24 02:49
LABORATORY CONTROL SAMPLE: 4273792
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Nitrogen, NO2 plus NO3 mg/L 2.5 2.5 100 90-110
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4273793 4273794
MS MSD
92707383001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Nitrogen, NO2 plus NO3 mg/L 46.6 2.5 2.5 50.0 51.0 139 179 90-110 2 M1
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4273795 4273796
MS MSD
92707387001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Nitrogen, NO2 plus NO3 mg/L 62.1 2.5 2.5 62.5 63.7 17 65 90-110 2 M1
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 10 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALITY CONTROL DATA
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
QC Batch: 825983 Analysis Method: EPA 365.1 Rev 2.0 1993
QC Batch Method: EPA 365.1 Rev 2.0 1993 Analysis Description: 365.1 Phosphorus,Total
Laboratory: Pace Analytical Services-Asheville
Associated Lab Samples: 92707469001
METHOD BLANK: 4271434 Matrix: Water
Associated Lab Samples: 92707469001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Phosphorus mg/L ND 0.050 01/18/2411:10
LABORATORY CONTROL SAMPLE: 4271435
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Phosphorus mg/L 2.5 2.6 103 90-110
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4271436 4271437
MS MSD
92707380001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Phosphorus mg/L 3.0 2.5 2.5 5.5 5.6 99 102 90-110 1
MATRIX SPIKE&MATRIX SPIKE DUPLICATE: 4271438 4271439
MS MSD
92707381001 Spike Spike MS MSD MS MSD %Rec
Parameter Units Result Conc. Conc. Result Result %Rec %Rec Limits RPD Qual
Phosphorus mg/L 5.9 2.5 2.5 8.2 8.3 91 98 90-110 2
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 11 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALIFIERS
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
DEFINITIONS
DF-Dilution Factor,if reported,represents the factor applied to the reported data due to dilution of the sample aliquot.
ND-Not Detected at or above adjusted reporting limit.
TNTC-Too Numerous To Count
J-Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL-Adjusted Method Detection Limit.
PQL-Practical Quantitation Limit.
RL-Reporting Limit-The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S-Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270.The result for each analyte is
a combined concentration.
Consistent with EPA guidelines,unrounded data are displayed and have been used to calculate%recovery and RPD values.
LCS(D)-Laboratory Control Sample(Duplicate)
MS(D)-Matrix Spike(Duplicate)
DUP-Sample Duplicate
RPD-Relative Percent Difference
NC-Not Calculable.
SG-Silica Gel-Clean-Up
U-Indicates the compound was analyzed for,but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting.Therefore,calculated parameters that are typically reported as
"Total"may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited.Contact your Pace PM for the current list of accredited analytes.
TN -The NELAC Institute.
ANALYTE QUALIFIERS
D6 The precision between the sample and sample duplicate exceeded laboratory control limits.
H3 Sample was received or analysis requested beyond the recognized method holding time.
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample(LCS)recovery.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 12 of 15

Pace Analytical Services,LLC
2225 Riverside Dr.
aceo Asheville,NC 28804
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: Stormwater Outfall 1/9/24
Pace Project No.: 92707469
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92707469001 OUTFALL 4
92707469001 OUTFALL 4 EPA 1664B 826985
92707469001 OUTFALL 4 EPA 200.8 824592 EPA 200.8 824930
92707469001 OUTFALL 4 SM 254OD-2015 824396
92707469001 OUTFALL 4 EPA 9040C 825371
92707469001 OUTFALL 4 TKN+NO3+NO2 826804
Calculation
92707469001 OUTFALL 4 EPA 351.2 Rev 2.0 1993 826061 EPA 351.2 Rev 2.0 1993 826163
92707469001 OUTFALL 4 EPA 353.2 Rev 2.0 1993 826462
92707469001 OUTFALL 4 EPA 365.1 Rev 2.0 1993 825983 EPA 365.1 Rev 2.0 1993 826101
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/23/2024 03:47 PM without the written consent of Pace Analytical Services,LLC. Page 13 of 15

i CHAIN-OF-CUSTODY Analytical Request Document LAB USE ONLY-Affix Workorder/Li WO# : 92707469
PaceAnalytical MT,[
Chain-of-Custody is a LEGAL DOCUMENT-Complete all relevant fields
Comppy:n Biking Information: ff II it
UU 6` ALL SHADED Al' 92707469 _
Address: Container Preservative Type
Report To: ��yy Email To: ••Preservative Types:(1)nitric acid,(2)sulfuric arid,(3)hydrochloric acid,(4)sodium hydroxide,(5)zinc acetate,
JT�0"� J�^�L�' J (6)methanol,(7)sodium bisulfate,(8)sodium thiosulfate,(9)hexane,(A)ascorbic acid,(B)ammonium sulfate,
Copy To: Site Collection Info/Address: (C)ammonium hydroxide,(0)TSP,(U)Unpreserved,(0)Other
Analyses Lab ProNe/Line:
Customer Project Name/Number. State: un9/city! Time Zone Collected: Lab Sample Receipt Checklist:
.c' 1~/!I Y L I QL /�c t< /Vc / /kr ,I/ [ ]PT[ ]MT[ ]CT ET
Custody Seals Present/Intact Y®NA
Phone: Site/Facility ID#; Compliance Monitoring? Custody Signatures Present N NA
Email: [ ] Yes [ ]No .0,J Collector Signature Present N NA
Bottles Intact 11 NA
Collected By(print]: } Purchase Order#: DW PWS ID#: 4 Correct Bottles N NA
!�'- r. 14 Sufficient Volume N NA
} n _! 1•' Quote : DWLocationCode: S Samples Received on ice N NA
Coll ted By{sig ature: Turnaround Date Required: Immediately Packed on Ice: r" VOA - Headspace Acceptable N
USDA Regulated Soils Y N
[ ] [ No No s Samples in Holding Time N
Sample Disposal: Rush: Field Filtered(if applicable): ,_ Residual Chlo ine.,gre nt Y &NA
{ ]Dispose as appropriate { ]Return [ ]Same Day [ ]Next Day [ ]Yes [ ]No y C1 Strips: .i
[ ]Archive: [ ]2 Day [ ]3 Day [ ]4 Day [ ]5 Day C Sample pH A ty _ l N NA
Analysis: to -� PH Strips: / V
[ ]Hold: (Expedite ChargesAppfy) 1_ Sulfide Present Y N&
Lead Acetate Strips:
Matrix Codes(insert in Matrix box below):Drinking Water(DW),Ground Water(GW),wastewater(WW), L`
Product(P),Soil/Solid(SL),Oil(OL),Wipe(WP),Air(AR),Tissue(TS),Bioassay{B),Vapor(V),Other(OT) LAB USE ONLY:
Comp/ Collected(or Res #of �_) ]� Lab sample # / Comments:
Customer Sample ID Matrix` Grab Composite Start} Composite End Cl Ctns - �`
Date Time Date Time "j ppa�y
sue" ��� X V
Customer Remarks/Spec!al Conditions/Passible Hazards: Type of Ice Used: a Blue Dry None SHORT HOLDS PRESENT{<72 hours): Y IN /A Lab Sample Temperature Info;
}y �� Packing Material Used: Lab Tracking q: 2 -7 2 5 3 7 �{ Temp Blank Received: A
Fi r�rn C ! C 1 ThermfDif: fc�Tn
r A) !/[Y� 5 Cooler 1 Temp Upon Receipt:5._&oc
Samples received Via: Cooler 1 Therm Corr.Factor: oC
Radchem sample NA s)screened(<Soo cpm): Y N FEDEX UPS Client Courier ce Cour' Cooler 1 Corrected Temp: oC
Relinquished by/Company:(Signature) Date/Time: , MidCompany;{Signature] Date/Time: � � MT3L LAB USE ONLY Comments:
va-6 -kA Mh t 1/'j'� Table#:
I I Acctnum:
]MCo UPa :(Signature) Da7�me: j Receive h /Company:(Si tureJ Date/Time: Template: Trip Blank Received: Y N NA
`�' ,� 5 Prelogin: HCL McOH TSP PdOW4 of 15
Relinquished by/co pany:(Signature) Date/Time: Received y/Company:(Signature) Date/Time: PM:
Nan C°nformance(s): Page:
IPB: I YES / NO I of:

N (y/N)slelA paAJasaJdun Jaquty lw Ob-n69ra
cu
(V/N)SlelA uoimoulas iw OZ-n9SA
O u
` J Q
CD o (-ID)(d/N)paAJasaJdun JaquJviw oor-nmv o
(4'6-E'6)bOSZ(ZHN)allseld lw OSZ-aEd9 v
o ' u
zzzzzzzZJeJ1 Z.
o _
3a
O U) (qel-V/N)allSeldalHJalSlw 0SZ-1ZdS
G N _
(gel-VIN)o!lseldalualSlwSZT-15dS = a
GJ 04) pf Cl
y . . (v/N)]! se9/HdA(11s1 Jad sle+n£}M9/A q tf n
r ' Z (V/N)paAJasaJdun:)QSeldlu•+OS-nLd31 Y
a o WCL
�-• ?� o
3 -J (b/N)bOdEH VOA lw Oa-AOCI CL N
E z
G (V/N)paAJasaJdun IVOA lw Ot*n6E)A m V
:w xt a a 3
_ (V/N)£OZSZeN VOA lw O>r169A ; EQJ o
() a (d/N)QH VOA lw Oh-H69O w
41
` m o
Q, (-I])(v/N)!]bHN Jagwv lw O1Y469Q d
� Yn o
`o ro
(Z>Hd)t CSZH Jagwy lw OSZ-SE!)V 4-
m o a
p( (Z>Hd)VOSZH Jagwy jal!I I-STDV - E
lz z
m y 00 (-IJ)(d/N)paAJasaJdun Jagwv 1w OSZ-nEsv a c
d E
a•-
G '" " (Z>Hd)lDH JagLUV Jal!l I-H19VZ Z ZZZZZ N o c
rt a 3 3 a m o
c a c
M o m �2 (-D)(V/N)paAJasaJdun Jaqu3y jai!1 T-nrDv Q a o m
= N L � m +�, m = •� �j a
' NN oo d ,5 panjasaidun je[sselg paglnow-ap!M-nj9M CLCD
a L
N O O
C G a
1 8 cu a cLJ (-D)(ZT<Hd)HOM allseld lw SZT-6bd9 CL m
Li. £
M a
a Cl q
Z m a w E N (6<)HOeN'SalelB:)VNZallseldlwSZL-Zbd9 a y o
C- ,2 C. c m
aj D I (Z>Hd)EONH apseid lw 0SZ-N£d8
Z Z a }
H j J2 L p k G ( I7)(Z>Hd}bOSZH a€lseld lw 5Zi 5Frd9 v b
I ••. r H a
W = u E X `m (y/N)paAJasaJdun allseld Jal!I i-nid8 �+ o
W .G am+ .O -Q L N
d
CL w
0 o a (y/N)paAJasaJdun a!lseld lw 0os-nZdB F c[
> (y/N)paAJasaJdun allseld lw oSZ-nsd9 61 -
U s a: Y O C
+� C O V d t O
(b/N)paAJasaJdun allseld lw SZi nbd8zzzzzzzzzz C age �c 15 a
61 a O U E Y
4u LO ,, o n
•� uL M !t ywall ,.., N m C Ln Lo r� oo M .ry-i Z 0
t C

1/3/24, 1:08 PM North Carolina Secretary of State Search Results
• File an Annual Report/Amend an Annual Report • Upload a PDF Filing • Order a Document Online -
Add Entity to My Email Notification List • View Filings • Print a Pre-Populated Annual Report form • Print
an Amended a Annual Report form
Business Corporation
Legal Name
BRP US Inc.
Prev Legal Name
Bombardier Motor Corporation of America
Information
Sosld: 0598415
Status: Current-Active O
Date Formed: 7/23/2001
Citizenship: Foreign
State of Incorporation: DE
Fiscal Month: January
Annual Report Due Date: May 15th
CurrentAnnuaL Report Status:
Registered Agent: CT Corporation System
Addresses
https://www.sosnc.gov/onIine_services/search/Business_Registration_ResuIts 1/2

1/3/24, 1:08 PM North Carolina Secretary of State Search Results
Principal Office Reg Office Reg Mailing
10101 Science Dr. 160 Mine Lake Ct Ste 200 160 Mine Lake Ct Ste 200
Sturtevant, WI 53177 Raleigh, NC 27615 Raleigh, NC 27615
Mailing
726 St-Joseph
Valcourt, XX JOE21_0
Off icers
President Assistant Treasurer Vice President
Jose Boisjoli Benoit Chevrier Karim Donnez
726 St-Joseph 1292 Blvd. Rene-Levesque, Suite 200 10101 Science Dr.
Valcourt, QC, JOE 2LO XX 53177 Montreal XX H3GOC4 Sturtevant WI 53177
Treasurer Secretary
Pascal Gauthier Martin Langelier
726 St-joseph 726 St-Joseph
Valcourt, QC, JOE 2LO XX 00000 Valcourt, QC, JOE 2LO QC JOE 21-0
Assistant Secretary Chief Accounting Officer Assistant Treasurer
Tara Mandjee Sebastien Martel Frederic Rosa-Matton
1292, boul. Rene-Levesque W. Suite 200 726 St-Joseph 10101 SCIENCE DR
Montreal XX H3GOC4 Valcourt QC JOE 2LO STURTEVANT WI 53177
Stock
https://www.sosnc.gov/online_services/search/Business_Registration_ResuIts 2/2

Bombardier Recreational Products BRP Us Inc.
1211 Greenwood Road
Spruce Pine,North Carolina
USA 28777
7 828,766.1100 P 828.765.2391
www.brp.com
August 23, 2023
Ms. Brianna Young, Individual Permit Coordinator
NCDEQ -Division of Energy,Mineral,and Land.Resources
G�V �Raleigh Central Office , G
1612 Mail Service Center
Raleigh,NC 27699-1612 f,
919.707.3647
[e-mail]
SUBJECT: BRP US Inc. - Spruce Pine,NC
NPDES Individual Stormwater Permit NCS000093
NPDES Permit Renewal Application
Dear Ms. Young:
BRP US Inc. (BRP) operates a lost foam aluminum casting facility in Spruce Pine, Mitchell
County,North Carolina under the NPDES (National Pollutant Discharge Elimination System)
Industrial Stormwater Program,Permit Number NCS000093. Part III,Section B, General
Condition 1 requires that the NPDES permit renewal application be submitted no later than 180
days prior to the expiration date; however, this renewal application is being submitted less than
180 days prior to the permit expiration of 8/31/23. We apologize for the late submittal, and
any missing data noted in the application will be submitted as soon as additional Stormwater
samples can be collected and analyzed.
As outlined in the NPDES Permitting Program application forms, this renewal includes the
following information:
• Application Form 1 "General Information," including Sections 1 through 11 and related
attachments as noted on page 4 of Application Form 1;
• Application Form 2F "Stormwater Discharges Associated with Industrial Activity,"
including Sections 1 through 10 and related attachments as noted on page 6 of
Application Form 2F;
• Two copies of the completed"Supplemental Information Required for Renewal of
Individual NPDES Stormwater Permit" Form; and
• A signed "Stormwater Pollution Prevention Plan Development and Implementation
Certification" Form.
With this renewal application, BRP requests authorization to discharge after the permit
expiration date such that the BRP facility can continue to operate under the terms of our
existing permit. If you have any questions regarding this renewal request, please contact Aaron
Jenkins, EHS Manager,at [phone] or Judy Hoff of ERM NC, Inc. at [phone].
ZurtsTaylor
Plant Manager ski-000
Lynx
Enclosures: Enclosure 1,Application Form 1 including Attachments Sea-Dae
Enclosure 2,Application Form 2F including Attachments Johnson
Enclosure 3,AdditionaI Copy of Supplemental Information Rosax
Bombardier AN
i

Enclosure 1
Application Form 1 including Attachments
,, 1.

EPA Identification Number NPOES Permit Number Facility Name Form Approved 03105119
EPA Registry Id:110012281627 NC5000093 BRP US Inc. OMB No.2040-0004
Form U.S.Environmental Protection Agency
1 •vEPA Application for NPDES Permit to Discharge Wastewater
NPDES GENERAL INFORMATION
SECTION • •D I
1.1 Applicants Not Required to Submit Form 1
1 1 1 Is the facility a new or existing publicly owned 1 1 2 Is the facility a new or existing treatment works
treatment works? treating domestic sewage?
If yes,STOP.Do NOT complete No If yes,STOP.Do NOT 0 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 122 Is the facility an existing manufacturing,
operation or a concentrated aquatic animal commercial,mining,or silvicultural facility that is
a production facility? currently discharging process wastewater?
LU ❑ Yes 4 Complete Form 1 No Yes 4 Complete Form 0 No
n and Form 2B. 1 and Form 2C.
z
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?
a Yes 4 Complete Form 1 0 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
associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
0 Yes 4 Complete Form 1 ❑ No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x)or
SECTION
DD• • • i
2.1 Facility Name
BRP US Inc.
0 2.2 EPA Identification Number
U
J EPA Registry ID:110012281627(from FRS database)
cu 2.3 Facility Contact
Name(first and last) Title Phone number
Aaron Jenkins EFTS Manager [phone]
Email address
[e-mail]
2.4 Facility Mailing Address
Street or P.O.box
1211 Greenwood Road
City or town State ZIP code
Spruce Pine NC 28777
EPA Form 3510-1(revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105119
EPA Registry Id:110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
2.5 Facility Location
.� Street,route number,or other specific identifier
0 1211 Greenwood Road
�U
0 County name County code(if known)
Mitchell
0
E --' City or town State ZIP code
z 0 Spruce Pine NC 28777
SECTION • 1 I
3.1 SIC Code(s) Description(optional)
3365 Aluminum Foundries
3471 Electroplating,Plating,Polishing,Anodizing,and Coloring
di
m
0
U
U
Z 3.2 NAICS Code(s) Description(optional)
331524 Aluminum Foundries(except Die-Casting)
U
W
332813 Electroplating,Plating,Polishing,Anodizing,and Coloring
SECTIONOPERATOR INFORMATION1
4.1 Name of Operator
BRP US Inc.
0 4.2 Is the name you listed in Item 4.1 also the owner?
0 0 Yes ❑ No
= 4.3 Operator Status
ro ❑ Public—federal ❑ Public—state ❑ Other public(specify)
0 0 Private ❑ Other(specify)
4.4 Phone Number of Operator
[phone]
C 4.5 Operator Address
Street or P.O.Box
1211 Greenwood Road
City or town State ZIP code
0 c0 Spruce Pine NC 28777
Q Email address of operator
[e-mail]
SECTION1 1 I
Is the facility located on Indian Land?
C " ❑ Yes No
EPA Form 3510.1 (revised 3-19) Page 2

EPA Identification Number NPOES Permit Number Facility Name Form Approved 03105119
EPA Registry Id:110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
SECTION 'f I
ro 6.1 Existing Environmental Permits(check all that apply and print or type the corresponding permit number for each)
❑✓ NPDES(discharges to surface ❑✓ RCRA(hazardous wastes) ❑ UIC(underground injection of
a water) fluids)
o ��— NCS000093 NCR0001371SS
.5: E
w K ❑� PSD(air emissions) ❑ Nonattainment program(CAA) ❑ NESHAPs(CAA)
CM
05331T25
❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section 404) ❑ Other(specify)
JUP Number 002
SECTION1
T1 Have you attached a topographic map containing all required information to this application?(See instructions for
C specific requirements.)
❑ Yes ❑ No ❑ CAFO—Not Applicable(See requirements in Form 213.)
SECTION 8.NATURE OF BUSINESS i
8.1 Describe the nature of your business.
BRP is a last foam foundry,which manufactures aluminum castings used as components for the manufacture of
various finished products including outboard engine parts,fuel filter housings,tamping devices,etc. Molten
aluminum is cast into foam molds,which are fabricated on-site from polystyrene beads,surrounded by sand.
Z Aluminum castings are cleaned in a series of grinding and cleaning steps. High pressure blasting is used to remove
m burrs and to shape the parts to requisite tolerances. On certain machines,the grinding process is aided with the use
of a surfactant material. Finishing operations include impregnation,chrome conversion coating,and limited wet
g Pg�
machining. During impregnation,critical parts are exposed to pressure and porosity sealing compounds to seal
z porous areas of some castings. Chrome conversion coating occurs in a series of process tanks in which aluminum
castings are exposed to an alkaline wash,a deoxidizing bath,a chromic acid bath,and a polymer seal bath. Minimal
machining is performed using a soluble oil cutting fluid and high speed tooling that is mounted in CNC machines.
SECTION • • I
9.1 Does your facility use cooling water?
L d 0 Yes El No 3 SKIP to Item 10.1.
ti; a 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
Q Y NPDES permitting authority to determine what specif c information needs to be submitted and when.)
c07 c Town of Spruce Pine Public Works
11050 South 226 Highway,Spruce Pine,NC 28777
[phone]
SECTION t I 1
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
N apply.Consult with your NPDES permitting authority to determine what information needs to be submitted and
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

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105119
EPA Registry Id:110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
SECTION • 1
11 A 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
0 Section 1:Activities Requiring an NPDES Permit ❑ wl attachments
Section 2: Name, Mailing Address,and Location ❑ wl attachments
❑✓ Section 3: SIC Codes ❑ wl attachments
✓❑ Section 4:Operator Information ❑ wl attachments
0 Section 5: Indian Land ❑ wl attachments
0 Section 6:Existing Environmental Permits ❑ wl attachments
d [D Section 7: Map ❑ atopographic 0 wl additional attachments
0 0 Section 8:Nature of Business ❑ wl attachments
0 Section 9:Cooling Water Intake Structures ❑ wl attachments
w
❑ Section 10:Variance Requests ❑ wl attachments
❑ Section 11:Checklist and Certification Statement wl attachments
11.2 Certification Statement
U
I certify under penalty of late that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualified personnel properly gather and evaluate the
information submitted. Based on my inquiry of the person or persons who manage the system,or those persons
directly responsible for gathering the information, the information submitted is,to the best of my knowledge and
belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Curtis Taylor Plant Manager
Signature Date signed
EPA Form 3510-1 (revised 3-19) Page 4

BS�r$���-:syy'"`"'.s7 I• �l � �_� �� ` ..�.\�y r4`.� ��* '• M1� i . . ".1' _' �+�
_ �J^•�t��J �. ...r_!4F �,1�'•! r. .' - �r�r 'r��•. . I �, 11�' �5�1 lY'f � II• }k� y:��,
p Y 41 J. �5\ `.._,``-._�J '1r Ir 'I: •-f 5�� L� -Up
r', 4bn wE�Jy -
jiCtCG r/ a
--� _ � •.r r r•_ 5Y. 1u�__�;r —'i/-� `rl w����`\r.I ��I rt I T1
Ir
PU..MTn It
• •kr '
'l �3 •t A;! n Sch r * �1 rt• '� i 3
'Ip .-�■ ram♦ I ,^ "'.'ter` ,.v - r ':• - �'� • ' .• - -.
SITE - .� I\ •JalLc �,�
I.
if
�lA aJ 4�!A ' - .'" I -�1• .- _�-- �• . lam' I ` ' _ ' ; I f 1 l.. ` '"4�
KK - �..+ _ f i" 1 ♦i �` r t, • �� ��_ _-I I M1. \ I� �}. 1����Mi�'J I
l c •4� _ - I �' I "� �;a'���" 7 I ti I y;/ ` �-__ � --�Y _ .�. I II �� ',`
�� ` ' ` •.� - :H wline ChplkI`Mo�an iin
_"'��' - ` '' r ; bMG+�(t{�� erl•.tiS + -f +�e/�!
,''i. �* �'.�:i 4^tti' r 1 1f, � klr 1�� 'i �i If. r � •-1 'i •�-{ �� � ti�-�
LAT LONG t`."' Jr �_R'.I' '"i 1�43 • ` �'
OF1 35.9108 82.0905
�etf
♦ O F2 35.9110 82.0919 e, -�� I{ �' �. �- ' - - - -= "-•, "�.� �� _�`_• � J
OF3 35.9116 82.0911 �`-_ _ :: +a t--
OF4 35.9090 82.0923 +
OF5 35.9090 82.0919
',gip:uCd F'i R"i n-3noir r
'OF6 35.9086 82.0913 1_
N
0 0.3 o.6 0.9 1.2 1.5 km
C 0.2 0.4 0.6 0.8 1 mi
Map center is 351 54' 30"N, 82" 05' 30"W (WGS84/NAD83)
Projection is UTM Zone 17 NAD83 Datum
Source:TopoZone
Spruce Pine,NC USGS Quadrangle Map
FIGUi k
SITE LOCATION MAP
ERM NC, PC BRP US Inc.
ERM SPRUCE PINE,NC

BRPSrrE.DWG 5/7/10 1=90 LRM/LRM
METAL STORAGE CANOPY
I EQUIPMENT, EMPTY DRUMS,
\ OOTFALL NO. 1 ALUMINUM CHIPS, SPENT SAND
(2) WATER 300,000—GAL
`!L / BATH VAPORIZERS WATER STORAGE
PROPANE BOTTLE FILL 30 CU YD TRASH i
ROLL—OFF
FIR 20 CU YD SAND
PU P OU ROLL—OFF
DETENTION
OUTFALL NO. 3 POND
_+ O ELECTRIC
SUBSTATION
TRASH COMPACTOR
OUTFACE N0. 6
0
O OUTFALL 140. 2 GHOUS
OFFICE
PROPANE DDMODTRON
TANK FARM I
.(3) 30,000—GAL TANKS DUST C01_[.ECTORS
do SAND PRIJTREATMENT
BULK PROPANE
UNLOAD AREA
MAIN
STACK
PARKING
AREAS
RTO
NOTES: SHIPPING &
1. OUTFALL NO. 1 RUNOFF AREA ~ RECEMNG OUTFALL NO. 5
TOTAL AREA : 305,045 SQ FT
IMPERVIOUS 24-4.418 SQ FT ~
PERVIOUS - 61,427 SQ FT
RUNOFF COEF = 0.503
OUTFALL
2. DETENTION POND WILL HOLD A ONE INCH RAINFALL NO. 4 ti
3. OUTFALLS NO. 2 & 3 RUNOFF IS FROM UNDEVELOPED AREAS.
SCALE !N FEET
4. OUTFALLS NO. 4 & 5 ARE PART OF EMPLOYEE PARKING AREA
�
0 90 180
SITE PLAN AND DRAINAGE PATTERN
FIGURE
ERM NC, PC IIRP GIs INC. 2
ERM SPRUCE PINE, NORTH CAROLNA

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
l. 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)

BRP-SPPP.DWG 10/23/14 1=90 LRM/LRM
\ STORMWATER EXPOWK
I 1, 500-GAL HYD. OIL TANK (UNDER ROOF)
2, 250-GAL HYD. OIL TANK (UNDER ROOF)
\ 3. SCRAP TUBING/SHEET METAL
4. MISC, STORAGE
5. LOADING DOCK
6, TRASH COMPACTOR (ENCLOSED?
I 7. 30 CU YARD TRASH ROLL-OFF (DPEN)
\ OUTFALL NO. 1 y B. ( 28$-GAL DIESEL YANKS
IN
IN PUMP HOUSE
9. COVERED CANOPY AREA
-FLUOR SWEEPER/20 YD SPENT SAND
WATER STORMS ROLL OFF
-METAL CHIP DUMPSTER AND
Raj \� COOLANT RECYCLING PROCESS
�� (2)yuTM -EMPTY DRUM STORAGE
09
Q
ni vAaoagF3s _ 10, MAX, HAZ WASTE, CILS, COOLANTS,
6WNTENMCEe N. PAM cmB 11. MI SC,
PALLET STORAGE GE CONTAINMENT SLUGS
C f Q 12, METAL PARTS IN WIRE BASKETS
LxJ LJ 13. COOLING TOWER
( 114.RPPOND ON 0 15. RTOTSTACKECTORS, SAND PRETREAT.
OUTFALL NO. 3 16' RTO DAGHOUSE
ELECTRIC
f -O f 17. SHIPPING AND RECEIVING
�/ SUBSTATION
OUTF NO. 6
0 4
o0 OUTFALL NO. ,1
OFFICE
PROPANE DDTTION
TANK FARM 1
(3) 30,000—GAL. TANKS
BULK PROPANE
UNLOAD AREA
PARKING
f
AREAS \
NOTES:
1. OLI FALL NO. 1 RUNOFF AREA OUTFALL NO, 5
TOTAL AREA = 305,845 SO FT
IMPERVIOUS — 244,418 SO FT
PERVIOUS = 61,427 SO FT -
RUNOFF COEF = 0.603
OUTFALL NO. 4
2. DETENTION POND WILL HOLD A ONE INCH RAINFALL -
3. OUTFALLS NO. 2 & 3 RUNOFF IS FROM UNDEVELOPED AREAS. ~ '
~ SCALE IN FEET
4. OUTFALS NO. 4 & 5 ARE PART OF EMPLOYEE PARKING AREA
5. OUTFALL NO. 6 CONSISTS OF ROOF DRAINAGE. 0 90 180
ERM NC, INC. SITE PLAN AND DRAINAGE PATTERNS FIGURE
BRP US INC. 2
ERM SPRUCE PINE, NORTH CAROLINA

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Analytical Analytical Analytical
Results Results Results
Greater than
Discharge Discharge Discharge Discharge Measurement Sample Benchmark
Date Characteristic Characteristic Characteristic Characteristic Frequency Type Values?
Stormwater Total Total TSS 50
Discharge Outfall Suspended Recoverable pH 6-9
Location Solids(TSS) pH Aluminum(Al) Total Rainfall AI None
mg/L Standard ug/L inches
Year 5 Period 2,January 1-June 30,2018
6/13/2018 Outfall1 13.7 7.2 373 0.64 Semiannual Grab No
Year 1 Period 1,July 1-December 31,2018
12/14/2018 Outfall1 3.6 6.7 181 1.22 Semiannual Grab No
Year 1 Period 2,January 1-June 30,2019
5/2/2019 Outfall1 ND 6.5 ND 1.36 Semiannual Grab No
Year 2 Period 1,July 1-December 31,2019
Not available in facility files Outfall 1 Not available Not available Not available Not available Semiannual Grab Unknown
Year 2 Period 2,January 1-June 30,2020
6/4/2020 Outfall1 3.2 6.4 ND 0.26 Semiannual Grab No
Year 3 Period 1,July 1-December 31,2020
10/24/2020 Outfall1 3.0 6.5 ND 0.52 Semiannual Grab No
Year 3 Period 2,January 1-June 30,2021
5/25/2021 Outfall1 5.8 5.4 ND 0.17 Semiannual Grab No
Year 4 Period 1,July 1-December 31,2021
11/11/2021 Outfall1 7.3 6.8 213 0.83 Semiannual Grab No
Year 4 Period 2,January 1-June 30,2022
6/8/2022 Outfall 1 6.2 6.2 116 Not available Semiannual Grab No
Year 5 Period 1,July 1-December 31,2022
Not available in facility files Outfall 1 Not available Not available Not available Not available Semiannual Grab Unknown
Year 5 Period 2 January 1-June 30,2023
6/20/2023 Outfall1 13.6 6.6 328 1.81 Semiannual Grab No
Year 6 Period 1,July 1-December 31,2023
Not yet Not yet Not yet Not yet Not yet
Not yet available Outfall1 available available available available Semiannual Grab available
AVERAGE 6.1 6.4 209.5
MAXIMUM 13.6 6.8 328
Notes:
ND=Not detected
Rainfall amounts available from facility rain gauge or from NCDC Daily Summaries for Spruce Pine,NC,climate station.
Records of samples for Year 2 Period 1 and Year 5 Period 1 have not been found in facility files,perhaps due to employee turnover.
Samples for Year 6 Period 1 have not been collected yet.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 SRP US Inc.
NPDES Permit Renewal Application
Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative
Results Results Results Results Results Results Results Results Results Results Results
Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge Monitoring
Date Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Frequency Sample Type
Other obvious
Erosion or indicators of
Stormwater Discharge Outfall Suspended deposition at stormwater
Location Color Odor Clarity Floating Solids Solids Foam Oil Sheen the outfall pollution
Year 5 Period 2,January 1-June 30,2018
6/13/2018 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 1 Period 1,July 1-December 31,2018
12/14/2018 SOO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 1 Period 2,January 1-June 30,2029
5/2/2019 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 2 Period 1,July 1-December 32,2019
Not available in facility files SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 2 Period 2,January 1-June 30,2020
6/4/2020 SOO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 3 Period 1,July 1-December 31,2020
10/24/2020 SOO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 3 Period 2,January 1-June 30,2021
5/25/2D21 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 4 Period 1,July 1-December 31,2021
11/11/2021 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 4 Period 2,January 1-June 30,2022
6/8/2022 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 5 Period 1,July 1-December 32,2022
Not available in facility files SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 5 Period 2,January 1-June 30,2023
6/20/2023 SDO 1.6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 6 Period 1 July 1-December 32,2023
Not yet Nat yet Not yet Not yet Not yet Not yet Not yet
Not yet available SDO 1-6 available available available Not yet available available available available available Not yet available Semiannual Grab
Notes:
Records of visual samples have not been found in facility files,perhaps due to employee turnover.
Samples for Year 6 Period 1 have not been collected yet.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Stormwater Discharge Outfall
Location Stormwater Exposure Item Location Best Management Practices(BMPs) Additional BMPs
SDO 1 500-gal Hydraulic oil tank SE of Production Bldg Tank located under roof,secondary containment -
250-gal Hydraulic oil tank SE of Production Bldg Tank located under roof,secondary containment
Scrap tubing/sheet metal SE of Production Bldg Stored outside Store inside building
Miscellaneous storage SE of Production Bldg Stored outside Store inside building
Loading dock E side of Production Bldg Covered
Scrap metal roll-off E side of Production Bldg Sweep around roll-off on a frequent basis Cover the roll-off
Trash compactor E side of Production Bldg Enclosed
30-Cubic yard trash roll-off E side of Production Bldg Sweep around roll-off on a frequent basis Cover the roll-off
Two 288-gal Diesel tanks E side of Production Bldg Tanks located inside Pump House Bldg -
Spent sand roll-off E side of Production Bldg Covered by a canopy and equipped with curbing
Metal chip dumpster E side of Production Bldg Covered by a canopy and equipped with curbing
Equipment storage E side of Production Bldg Covered by canopy and equipped with curbing
Containment Bldgs for storage
of waste,oil,coolants NE of Production Bldg Enclosed
Pallets NE of Production Bldg Stored outside Limit number of pallets stored outside
Metal parts NE of Production Bldg Stored outside Store inside building
Monitor use of chemicals in cooling tower water
Cooling tower NE of Production Bldg and monitor containment for leaks
Dust collectors and sand Routinely sweep and properly dispose of dust
pretreatment area NE side of Production Bldg (particulates)
Regenerative thermal oxidizer Routinely sweep and properly dispose of dust
(RTO)stack and baghouse NE side of Production Bldg (particulates)
Shipping/Receiving Dock NE side of Production Bldg Monitor by BRP employee
Sand hopper E side of Production Bldg Sweep around hopper on a frequent basis
SDO 2 Propane unloading area NE side of Production Bldg Pressurized unloading
SDO 3 Propane tanks NE side of Production Bldg Pressurized tanks
SDO 4 Employee parking area SW of Production Bldg SPPP,training,etc.
SDO 5 Employee parking area SW of Production Bldg SPPP,training,etc.
SDO 6 Roof SE of Production Bldg Use of control equipment(dust collectors,RTO)
Notes:
Best Management Practices(BMPs)are described in the BRP Stormwater Pollution Prevention Plan(SPPP)in facility files.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Changes Since Previous Permit Issuance Description of Changes Location Best Management Practices(BMPs) Suggested Improvements to BMPs
No changes related to stormwater have
occurred None None None None
Notes:
No changes related to stormwater have occurred at the facility since the previous NPDES permit was issued.
Minor modifications to operations(more related to air quality)have included or will include the following:
Replaced the CD-1 bagfilter because the existing bagfilter was underrated and at the end of its service life.The replacement bagfilter is a Donaldson DFE 4-32 Dust Collector,which contains
32 ultra-web cartridge filters with a filter area of 8,128 square feet,a differential pressure meter,and an effective cleaning system.
Venting the following insignificant natural gas-fired ovens through the building roof rather than exhausting inside the manufacturing building,both to meet National Fire Protection
Association(NFPA)requirements and to improve indoor air quality:
*ES-17,Heat Treat No.1 Solution Oven for Cast Line No.1,3.0 MMBtu/hr capacity;
*ES-18,Heat Treat No.3 Solution Oven for Cast Line No.2,3.0 MMBtu/hr capacity;
*ES-30,Age Oven No.1(AO-01),1.0 MMBtu/hr capacity;
*ES-31,Age Oven No.2(AO-02),1.0 MMBtu/hr capacity;and
*ES-38,Age Oven No.3(AO-03),1.0 MMBtu/hr capacity.
Removed ES-47,Paint Spray Booth and Associated Bake Oven(3.0 MMBtu/hr capacity),since painting is done off-site by a vendor.As a result,this source has been removed from the facility.
Added Dehumidifiers#1 and#2 for the Styrofoam Drying ovens.
Replaced the Emergency Generator.
Replaced the CD-16 bagfilter because the existing bagfilter was underrated and at the end of its service life.
Removed ES-44,Boiler#2(14.7 MMBtu/hr capacity),since Boiler#1 is larger and sufficient for plant operation.

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy, Mineral, and Land Resources— Stormwafer Program
Facility Name: BRPUSInc.
Permit Number: NGSOODO93
Location Address: 1211 Greenwood Road
Spruce Pine,NC 28777
County: Mitchell
"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 Date N26CZ,
Curtis Taylor Plant Manager
Print or type name of person signing above Title
SPPP Certification 10/13

Enclosure 2
Application Form 2F including Attachments

EPA Identification Number NPDES Permit Number Facility Name Farm Approved 03105119
EPA Registry Id:110012281627 NC5000093 BRP US Inc. OMB No.2040-0004
Form U.S Environmental Protection Agency
2F \.EPA Application for NPDES Permit to Discharge Wastewater
NPDES STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
SECTIONOUTFALL LOCATION
1.1 Provide information on each of the facTty's outfalls in the table below
Outfall Receiving Water Name Latitude Longitude
Number
SDO 1 English Creek 35' 54' 38.88" 82° 5' 25.8"
0
SDO 2 English Creek 35' 54' 39.6" 82° 5' 30.84"
0
m SDO3 English Creek 350 54' 41.76" 82' 5' 27.96"
SDO4 English Creek 35' 54' 32.4" 82* 5' 32.28"
SDO 5 English Creek 35' 54' 32.4" 82' 5' 30.34"
SDO 6 English Creek 3S' 54' 30.96" 82' 5' 28 68"
SECTION " • I
2.1 Are you presently required by any federal, state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes El No 4 SKIP to Section 3.
2.2 Briefly identify each applicable project in the table below.
Brief Identification and Affected Outfalis Source(s)of Discharge Final Compliance Dates
Description of Project (list cutfall numbers)
Required Projected
Not applicable, N/A
a
E
m
a
0
E
2.3 Have you attached sheets describing any additional water pollution control programs(or other environmental projects
that may affect your ftcharges)that you now have underway or planned?(Optional Item)
❑ Yes El No
EPA Form 3510-2F(Revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
EPA Registry Id:110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
SECTION 3.SITE D- !
m
3 1 Have you attached a site drainage map containing all required information to this application?(See instructions for
Q specific guidance.)
o ® Yes ❑ No
SECTION 4.POLLUTANT SOURCES !
4.1 Provide information on the facility's pollutant sources in the table below.
Outfall Impervious Surface Area Total Surface Area Drained
Number (vAthin a mile radius of the facility) (within a mile radius of the facility)
specify units specify units
SDO 1 244,000 sq ft 306,000 sq ft
specify units specify units
SDO 2 25,200(road,undeveloped) sq ft S0,400 sq ft
specify units specify units
SDO 3 9,500(undeveloped) sq ft 189,000 sq ft
specify units specify units
SDO 4 17,200(parking area) sq ft 28,700 sq ft
specify units specify units
SDO 5 22,300(parking area) sq ft 44,600 sq ft
specify units specify units
SDO 6 33,300(roof drainage) sq ft 111,10o sq ft
4.2 Provide a narrative description of the facility's significant material in the space below.(See instructions for content
requirements.)
Two hydraulic oil aboveground storage tanks(ASTs)are located under roof outside the production building. Totes and
drums are stored inside buildings or inside storage containment buildings located east of the production building. A
oloading dock is located at the southeastern building wall,and a shipping/receiving area is located at the northeastern
building wall. Six(6)dust collectors are located along the northeastern building wall: one for the aluminum casting
lines;one associated with sand storage for each casting line(two lines);one for the regenerative thermal oxidizer
(RTO);one for the sand reclamation system;and one for shot blast machines and sand blast units. The facility has an
a open trash roll-off,an enclosed trash compactor,an open scrap metal dumpster,a spent sand roll-off under canopy,
and a metal chip dumpster under canopy. Fertilizers,pesticides,herbicides are used by knowledgable landscapers.
4.3 Provide the location and a description of existing structural and non-structural control measures to reduce pollutants in
stormwater runoff. See instructions forspecificguidance.)
Stormwater Treatment
Codes
Outfall from
Number Control Measures and Treatment Exhibit
2F-1
list
SDO 1 Plant activities-docks and equipment storage-covered, retention pond(structural) N/A
5130 2 Undeveloped area with propane unloading-pressurized propane(non-structural) N/A
SDO 3 Undeveloped area with propane tanks-pressurized tanks(non-structural) N/A
SDO 4 Parking areas-SPPP,training,housekeeping(non-structural) N/A
SDO 5 Parking areas-SPPP,training,housekeeping(non-structural) N/A
SDO 6 Building roof-SPPP,training,housekeeping(non-structural) N/A
EPA Form 3510.217(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105119
EPA Registry Id:110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
SECTIONiN STORMWATER 1 r
5.1 1 certify under penalty of law that the outfall(s) covered by this application have been tested or evaluated for the
presence of non-stormwater discharges. Moreover, l certify that the outfalls 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
Curtis Taylor Plant Manager
Signature Date signed
a7 5.2 Provide the testing information requested in the table below.
Onsite Drainage Points
Outfall Description of Testing Method Used Date(s)of Testing Directly Observed
Number
During Test
ca
ca
�
SDO 1 Visual evaluation 07/26/2023 Outfall 1
`o
c SDO 2 Visual evaluation 07/26/2023 Outfall 2
0
Z
SDO 3 Visual evaluation 07/26/2023 Outfall 3
SDO4 Visual evaluation 07/26/2023 Outfal14
SDO 5 Visual evaluation 07/26/2023 Outfall 5
SDO 6 Visual evaluation 07/26/2023 Outfall 6
SECTION 6.SIGNIFICANT LEAKS OR r
6.1 Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
m No leaks or spills have occurred during the last three(3)years.
`o
W
Y
SECTION 7.
f9
07
J
C
fC
U
.0
O1
DISCHARGE INFORMATION
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables you must
o com fete,Not all applicants need to complete each table.
7.1 Is this a new source or new discharge?
o El estimated
4 See instructions regarding submission of ID actual
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?
is
❑ Yes ❑ No
EPA Form 3510-2F(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
EPA Registry Id:1100122111627 NCS000093 BRP US Inc. 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?
0 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 [:1 No
7.5 Do you know or have reason to believe any pollutants in Exhibit 2F-2 are present in the discharge?
0 Yes ❑ No 4 SKIP to Item 7.7.
7.6 Have you listed all pollutants in Exhibit 2F-2 that you know or have reason to believe are present in the discharge and
provided quantitative data or an explanation for those pollutants in Table C?
R] 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 4 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?
C ❑ Yes ❑ No
c)
0 7.10 Do you expect any of the pollutants in Exhibit 2F-3 to be discharged in concentrations of 10 ppb or greater?
CU
€ ❑ 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
rn concentrations of 10 ppb or greater?
_ ❑ Yes ❑ No
7.12 Do you expect acrolein,acrylonitrile,2,4-dinitrophenol,or 2-methyl4,6-dinitrophenol to be discharged in concentrations
of 100 ppb or greater?
❑ Yes ❑✓ 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?
❑ Yes ❑✓ No 4 SKIP to Item 7.17.
7.16 Have you listed pollutants in Exhibit 2F-4 that you know or believe to be present in the discharge and provided an
explanation in Table C?
❑ Yes ❑ No
7.17 Have you provided information for the storm event(s)sampled in Table D?
❑ Yes No
EPA Form 3510-2F(Revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105119
EPA Registry Id:1100122$1627 NCS000093 BRP US Inc. OMB No.2040-0004
Used or Manufactured Toxics
7.18 Is any pollutant listed on Exhibits 2F-2 through 2F-4 a substance or a component of a substance used or
manufactured as an intermediate or final product or byproduct?
a
S Yes ❑ No 4 SKIP to Section 8.
0
7.19 List the pollutants below,including TCDD if applicable.
1=
L
O
1'Total Recoverable Aluminum 4. 7.
a
2. 5. 8.
U
0 L31
6. 9.
SECTIONBIOLOGICAL T• DATA
8.1 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made on
any of your discharges or on a receiving water in relation to your discharge within the last three years?
a
❑ Yes 0 No 4 SKIP to Section 9.
8.2 Identify the tests and their purposes below.
Test(s) Purpose of Test(s) Submitted to NPDES Date Submitted
x _ Permitting Authori
0
1- ❑ Yes ❑ No
ca
o ❑ Yes ❑ No
0
m
❑ Yes ❑ No
SECTION • ANALYSIS INFORMATION1
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,LLC N/A N/A
c
0
0
Laboratory address 110 Technology Parkway
Peachtree Corners,GA 30092
U
i0
o Phone number
U [phone]
Pollutant(s)analyzed
Total Recoverable Aluminum
EPA Form 3510-2F(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105119
EPA Registry Id: 110012281627 NCS000093 BRP US Inc. OMB No.2040-0004
SECTIONI CHECKLIST AND CERTIFICATION STATEMENT(40
10.1 In Column 1 below,mark the sections of Form 2F that you have completed and are submitting with your application.For
each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note that not
all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
0 Section 1 ❑ wl attachments(e.g.,responses for additional outfa[Is)
Section 2 ❑ wl attachments
0 Section 3 ❑ wl site drainage map
0 Section 4 ❑ wl attachments
❑ Section 5 ❑ wl attachments
;r
0 Section 6 ❑ wl attachments
d ❑ Section 7 0 Table A ❑ wl small business exemption request
[l Table B ❑ wl analytical results as an attachment
0
[�] Table C 0 Table D
L) ❑✓ Section 8 ❑ wlattachments
0 Section 9 ❑ wlattachments(e.g.,responses for additional contact laboratories or firms)
x
s 0 Section 10 ❑
ca 10.2
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 properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible
for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. 1 am aware that thero 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
Curtis Taylor Plant Manager
Signatur� Date signed
EPA Form 3510-2F(Revised 3-19) Page B

EPA Identification Number NPDES Permit.Number Facility Name Ouifall Number Farm Approved 03105/19
EPA Registry Id:110012281627 NCS000093 BRP U5 Inc. SDO 1(Representative) OMB No.2040-0004
TABLE A.CONVENTIONAL AND NON • • !
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 re uirements,
Maximum Daily Discharge Average Daily Discharge Source of
(specify units) (specify units) Number of Storm Information
Pollutant or Parameter Grab Sample Taken Grab Sample Taken (new sourcelnew
During First Flow-Weighted ed During First Flow-Weighted Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instructions)
1. Oil and grease Not yet available Nat yet available None To Be Determined
2. Biochemical oxygen demand(BOD5) Not applicable Comp.not regd. Not applicable Comp.not regd. None N/A
1Chemical oxygen demand(COD) Not aooFcable Comp.not regd. Not applicable Comp.not regd. None N/A
4, Total suspended solids(TSS) 13.6 mg/L Comp.not reqd. 6.1 mg/L Comp.not reqd, 8 5-Actual data
5. Total phosphorus Not yet available Comp.not reqd. Not yet available Comp.not reqd. None To Be Determined
6. Total Kjeldahl nitrogen(TKN) Not yet available Comp.not reqd. Not yet available Comp.not regd. None To Be Determined
7. Total nitrogen (as N) Not yet available Comp.not regd. Not yet available Camp.not reqd. None To Be Determined
pit(minimum) 5.4 6.4 8 5-Actual data
B.
pH(maximum) 7.2 6.4 8 5-Actual data
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 Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
EPA Registry Id:110012281627 NCS000093 BRP US Inc. SDO 1(Representative) OMB No.2040-0004
TABLE B.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CF R 122.26(c)(1)(1)(E)(4)and 40 CFR 122.21(g)(7)(vi)(A))'
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 eutfall. See the instructions for additional details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
(specify units) (specify units) Number of Storm Information
Pollutant and CAS Number(if available) Grab Sample Taken Grab Sample Taken (new sourcelnew
During First Flo Composite
Flow-Weighted During First Flo Composite
Events Sampled dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in Instruc?ions)
Total Suspended Solids(TSS) No permit limitation Comp,riot regd. No permit limitation Comp.not reqd. Semiannually N/A
pH 6-9 Comp,not reqd. 6-9 Comp. not reqd. Semiannually N/A
Total Recoverable Aluminum(AI) No permit limitation Comp,not reqd. No permit limitation Comp,not reqd. Semiannually N/A
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.

EPA Identification Number NPOES Permit Number Facility Name outfall Number Form Approved 03/05/19
EPA Registry Id: 110012281627 NCS000093 BRP US Inc. Si 1(Representative)7 OMB No.204NO04
TABLE C.TOXIC POLLUTANTS,CERTAIN HAZARDOUS SUBSTANCES,AND ASBESTOS(40 CFR 1122.26(c)(1)(1)(11i and 40 CFR 122.21[g)(7)(vii)(B)and(viii))'
List each pollutant shown in Exhibits 2F--2,2F-3,and 2F-4 that you know or have reason to believe is present. Complete one table for each outfall. See the instructions for additional
details and requirements.
Maximum Daily Discharge Average Daily Discharge Source of
s eci units s eci units Number of Storm Information
Pollutant and CAS Number(if available) Grab Sample Taken Flow-Weighted Grab Sample Taken new sourcelnew
DuringFirst DuringFirst Flow-Weighted Events Sampled (
Composite Composite dischargers only;use
30 Minutes 30 Minutes codes in instructions)
Total Recoverable Aluminum 328 ug/L Comp. not read. 209.5 ug/L Comp.not recid. 8 5-Actual data
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 IN or D. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 11

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility name Outfall Number Form Approved 03105/19
EPA Registry to:110012211127 NC5000093 BRP US Inc. SDO 1(Representative) OMB No.2040-0004
STORMTABLE D. • ` • i
Provide data for the storm event(s)that resulted in the maximum daily discharges for the flow-weighted composite sample.
Number of Hours Between
Total Rainfall During Maximum Flow Rate
Duration of Storm Event Beginning of Storm Measured and Total Flow from Rain Event
Date of Storm Event tin hou (in Inches) (in gpm or specify units)hours} (in
Event End of Previous Measurable Rain During Rain Even) (in gallons orspecify units)
Event
08/23/2023
N/A composite not regd. N/A composite not regd. N/A composite not regd. N/A comp,not reqd. N/A comp. not reqd.
Provide a description of the method of flow measurement or estimate.
Flow-weighted composite samples are not required.
EPA Form 3510-2F(Revised 3-19) Page 13

Enclosure 3
Additional Copy of Supplemental Information

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,
a parameters sampled, lab results, date sampled, and storm event data.
f 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)

BRP-SPPP.DWG 10/23/14 1=90 LRM/LRM
\ STORMWATER EXPOSURE
I 1, 500-GAL HYD, OIL TANK (UNDER ROOF)
2, 250-5AL HYD, UIL TANK (UNDER ROOF)
\ 3. SCRAP TUBING/SHEET METAL
4. MISC. STORAGE
5. LOADING DOCK
6. TRASH COMPACTOR (ENCLOSED)
\
I OUTFALL N0. I 7. 30 CU YARD TRASH ROLL-OFF (OPEN)y y B. ( PUB-GAL DIESEL TANKS
IN
L IN PUMP HOUSE
9, COVERED CANOPY AREA
/ -FLOOR SWEEPER/20 YD SPENT SAND
WATER SMR�E ROLL OFF
-METAL CHIP DUMPSTER AND
COOLANT RECYCLING PROCESS
(21 wAme / -EMPTY DRUM STORAGE
m VAPIII s 10. MAK, HAZ WASTE, OILS. COOLANTS,
WJ
QQ NTENANCE SHOP STORAGE CONTAINMENT DLDGS
/ Q(� & LWN. PARTS CRIB 11. MISC. PALLET STORAGE
0O 12. METAL PARTS IN WIRE BASKETS
13. COOLING TOWER
RETENTION I 14, DUST COLLECTORS, SAND PRETREAT.
OUTFALL NO. 3 POND 15, RTO STACK
16. RTO BAGHCUSE
ELECTRIC 17. SHIPPING AND RECEIVING
SUBSTATION
DO OUTFALL NO. 6
4
OUTFACE N0. 2 1 f
O OFFICE
PROPANE L DDMDN
TANK FARM 1
.(3) 30,000--GAL TANKS 1
BULK PROPANE
UNLOAD AREA
PARKING
% AREAS
NOTES: 1
1. OUTFALL NO. 1 RUNOFF AREA OUTFALL NO. 5
TOTAL AREA - 305,845 SO FT _
IMPERV10US m 244.418 SO FT
PERNOUS - 61,427 SO FT
RUNOFF COEF = 0.603 4
Il
2. DETENTION POND WILL HOLD A ONE INCH RAINFALLOUTFALL NO. 4�
3. OUTFALLS NO. 2 & 3 RUNOFF IS FROM UNDEVELOPED AREAS. ~
SCALE IN FEET
4. OUTFALLS NO. 4 & 5 ARE PART OF EMPLOYEE PARKING AREA iiiia
~
5. OUTFALL NO. 6 CONSISTS OF ROOF DRAINAGE. 0 90 ISO
ERM NC, INC. SITE PLAN AND DRAINAGE PATTERNS FIGURE
BRP US INC. 2
ERM SPRUCE PINE, NORTH CAROLINA

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NC5000093 BRP US Inc.
NPDES Permit Renewal Application
Analytical Analytical Analytical
Results Results Results
Greater than
Discharge Discharge Discharge Discharge Measurement Sample Benchmark
Date Characteristic Characteristic Characteristic Characteristic Frequency Type Values?
Stormwater Total Total TSS 50
Discharge Outfall Suspended Recoverable pH 6-9
Location Solids(TSS) pH Aluminum(AI) Total Rainfall AI None
mg/L Standard ug/L inches
Year 5 Period 2,January 1-June 30,2018
6/13/2018 Outfall1 13.7 7.2 373 0.64 Semiannual Grab No
Year 1 Period 1,July 1-December 31,2018
12/14/2018 Outfall1 3.6 6.7 181 1.22 Semiannual Grab No
Year 1 Period 2,January 1-June 30,2019
5/2/2019 Outfalll ND 6.5 ND 1.36 Semiannual Grab No
Year 2 Period 1,July 1-December 31,2019
Not available in facility files Outfall 1 Not available Not available Not available Not available Semiannual Grab Unknown
Year 2 Period 2,January 1-June 30,2020
6/4/2020 Outfall1 3.2 6.4 ND 0.26 Semiannual Grab No
Year 3 Period 1,July 1-December 31,2020
10/24/2020 Outfall1 3.0 6.5 ND 0.52 Semiannual Grab No
Year 3 Period 2,January 1-June 30,2021
5/25/2021 Outfall1 5.8 5.4 ND 0.17 Semiannual Grab No
Year 4 Period 1,July 1-December 31,2021
11/11/2021 Outfail1 7.3 6.8 213 0.83 Semiannual Grab No
Year 4 Period 2,January 1-June 30,2022
6/8/2022 Outfall 1 6.2 6.2 116 Not available Semiannual Grab No
Year 5 Period 1,July 1-December 31,2022
Not available in facility files Outfall 1 Not available Not available Not available Not available Semiannual Grab Unknown
Year 5 Period 2 January 1-June 30,2023
6/20/2023 Outfall1 13.6 6.6 328 1.81 Semiannual Grab No
Year 6 Period 1,July i-December 31,2023
Not yet Not yet Not yet Not yet Not yet
Not yet available OutfallI available available available available Semiannual Grab available
AVERAGE 6.1 6.4 209.5
MAXIMUM 13.6 6.8 328
Notes:
ND=Not detected
Rainfall amounts available from facility rain gauge or from NCDC Daily Summaries for Spruce Pine,NC,climate station.
Records of samples for Year 2 Period 1 and Year 5 Period 1 have not been found in facility files,perhaps due to employee turnover.
Samples for Year 6 Period 1 have not been collected yet.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCSO00093 8RP US Inc.
NPDES Permit Renewal Application
Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative Qualitative
Results Results Results Results Results Results Results Results Results Results Results
Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge Monitoring
Date Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Frequency Sample Type
Other obvious
Erosion or indicators of
Stormwater Discharge Outfall Suspended deposition at stormwater
Location Color Odor Clarity Floating Solids Solids Foam Oil Sheen the outfall pollution
Year 5 Period 2,January 1-June 30,2018
6/13/2018 5001-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 1 Period 1,July 1-December 31,2018
12/14/2018 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 1 Period 2,January 1-June 30,2019
5/2/2019 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available- Not available Not available Semiannual Grab
Year 2 Period 1,July 1-December 31,2019
Not available in facility files SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 2 Period 2,January 1-June 30,2020
6/4/2020 SDO 1•6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 3 Period 1,July 1-December 32,2020
10/24/2020 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 3 Period 2,January 1-June 30,2021
5/25/2021 SD0 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 4 Period 1,July 1-December 32,2021
11/11/2021 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 4 Period 2,January 1-June 30,2022
6/8/2D22 SOO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 5 Period 1,July 1-December 31,2022
Not available in facility files SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 5 Period 2,January 1-June 30,2023
6/20/2023 SDO 1-6 Not available Not available Not available Not available Not available Not available Not available Not available Not available Semiannual Grab
Year 6 Period 1 July 1-December 31,2023
Not yet Not yet Not yet Not yet Not yet No[yet Not yet
Not yet available SDO 1-6 available available available Not yet available available available available available Not yet available Semiannual Grab
Notes:
Records of visual samples have not been found in facility files,perhaps due to employee turnover.
Samples for Year 6 Period 1 have not been collected yet.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Stormwater Discharge Outfall
Location Stormwater Exposure Item Location Best Management Practices(BMPs) Additional BMPs
SDO 1 500-gal Hydraulic oil tank SE of Production Bldg Tank located under roof,secondary containment -
250-gal Hydraulic oil tank SE of Production Bldg Tank located under roof,secondary containment -
Scrap tubing/sheet metal SE of Production Bldg Stored outside Store inside building
Miscellaneous storage SE of Production Bldg Stored outside Store inside building
Loading dock E side of Production Bldg Covered -
Scrap metal roll-off E side of Production Bldg Sweep around roll-off on a frequent basis Cover the roll-off
Trash compactor E side of Production Bldg Enclosed -
30-Cubic yard trash roll-off E side of Production Bldg Sweep around roll-off on a frequent basis Cover the roll-off
Two 288-gal Diesel tanks E side of Production Bldg Tanks located inside Pump House Bldg -
Spent sand roll-off E side of Production Bldg Covered by a canopy and equipped with curbing -
Metal chip dumpster E side of Production Bldg Covered by a canopy and equipped with curbing -
Equipment storage E side of Production Bldg Covered by canopy and equipped with curbing -
Containment Bldgs for storage
of waste,oil,coolants NE of Production Bldg Enclosed
Pallets NE of Production Bldg Stored outside Limit number of pallets stored outside
Metal parts NE of Production Bldg Stored outside Store inside building
Monitor use of chemicals in cooling tower water
Cooling tower NE of Production Bldg and monitor containment for leaks
Dust collectors and sand Routinely sweep and properly dispose of dust
pretreatment area NE side of Production Bldg (particulates)
Regenerative thermal oxidizer Routinely sweep and properly dispose of dust
(RTO)stack and baghouse NE side of Production Bldg (particulates)
Shipping/Receiving Dock NE side of Production Bldg Monitor by BRP employee
Sand hopper E side of Production Bldg Sweep around hopper on a frequent basis
SDO 2 Propane unloading area NE side of Production Bldg Pressurized unloading
SDO 3 Propane tanks NE side of Production Bldg Pressurized tanks
SDO 4 Employee parking area SW of Production Bldg SPPP,training,etc.
SDO 5 Employee parking area SW of Production Bldg SPPP,training,etc. -
SDO 6 Roof SE of Production Bldg Use of control equipment(dust collectors,RTO)
Notes:
Best Management Practices(BMPs)are described in the BRP Stormwater Pollution Prevention Plan(SPPP)in facility files.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
NPDES Permit Renewal Application
Changes Since Previous Permit Issuance Description of Changes Location Best Management Practices(BMPs) Suggested Improvements to BMPs
No changes related to stormwater have
occurred None None None None
Notes:
No changes related to stormwater have occurred at the facility since the previous NPDES permit was issued.
Minor modifications to operations(more related to air quality)have included or will include the following:
Replaced the CD-1 bagfilter because the existing bagfilter was underrated and at the end of its service life.The replacement bagfilter is a Donaldson DFE 4-32 Dust Collector,which contains
32 ultra-web cartridge filters with a filter area of 8,128 square feet,a differential pressure meter,and an effective cleaning system.
Venting the following insignificant natural gas-fired ovens through the building roof rather than exhausting inside the manufacturing building,both to meet National Fire Protection
Association(NFPA)requirements and to improve indoor air quality:
"ES-17,Heat Treat No.1 Solution Oven for Cast Line No.1,3.0 MMBtu/hr capacity;
'ES-18,Heat Treat No.3 Solution Oven for Cast Line No.2,3.0 MMBtu/hr capacity;
*ES-30,Age Oven No.1(A0-01),1.0 MMBtu/hr capacity;
•ES-31,Age Oven No.2(AO-02),1.0 MMBtu/hr capacity;and
'ES-38,Age Oven No.3(AO-03),1.0 MMBtu/hr capacity.
Removed ES-47,Paint Spray Booth and Associated Bake Oven(3.0 MMBtu/hr capacity),since painting is done off-site by a vendor.As a result,this source has been removed from the facility.
Added Dehumidifiers#1 and#2 for the Styrofoam Drying ovens.
Replaced the Emergency Generator.
Replaced the CD-16 bagfilter because the existing bagfilter was underrated and at the end of its service life.
Removed ES-44,Boiler#2(14.7 MMBtu/hr capacity),since Boiler#1 is larger and sufficient for plant operation.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
Summary of Best Management Practices (BMPs) utilized at BRP US Inc.
The facility has provided structural and non-structural measures or practices to reduce the
amount of pollution entering surface waters. Structural best management practices employed at
the BRP facility include providing covers over bulk storage areas and secondary containment
features. Catch basins are provided to improve stormwater flow throughout the facility. Non-
structural best management practices include drainage ditches, semi-annual stormwater
inspections,monitoring loading/unloading operations,sweeping,and good housekeeping
procedures and inspections. A listing of the BMPs for the site is provided in the narratives and
table below.
Description of Storage, Loading, Dust Generating,and Waste Disposal Practices
Bulk Storage
All of the bulk above ground storage tanks (AST),totes, drums,and other storage containers are
compatible with the products stored and the conditions of storage such as pressure and
temperature. Totes and drums are stored either inside the buildings or inside the storage
containment buildings located east of the production building. Three (3) 30,000-gallon propane
tanks will not impact stormwater since the tanks are pressurized.
Loading and Unloading
The facility has a loading dock at the southeastern building wall and a shipping/receiving area at
the northeastern building wall. The loading dock area is paved, and spill control equipment is
located nearby. Facility personnel are equipped with internal communication equipment during
all bulk or drum transfers. A propane unloading area will not impact stormwater since propane is
a pressurized gas.
Dust or Particulate Generation
The facility has a total of six (6) dust collectors located along the northeastern building wall. One
dust collector is associated with the aluminum casting lines;one associated with sand storage for
each casting line (two lines); one for the regenerative thermal oxidizer (RTO);one for the sand
reclamation system; and one is associated with the shot blast machines and sand blast units. The
facility also uses an RTO,which utilizes its own baghouse for the pouring,cooling, shakeout, and
quench process. The area is routinely swept and inspected for particulates entering the
stormwater system. Dust collectors and control of particulate emissions limit the particulates on
the facility roof. The cooling tower,chemicals used,and containment area are monitored.
Waste Disposal Practices
All waste generated at this facility is segregated into non-hazardous or hazardous waste
containers. All hazardous waste is collected into appropriate containers (drums are labeled and
stored in the containment units). Non-hazardous waste is separated according to type and
collected in approved containers located throughout the facility before disposal or recycling. The
facility has one open trash roll-off,one enclosed trash compactor,one open scrap metal dumpster,
one spent sand roll-off (under canopy),and one metal chip dumpster (under canopy).
Miscellaneous Storage and Other Areas
Miscellaneous items are stored under the canopy area and south of the production building.
BMPs for employee parking areas include preparation and implementation of the Stormwater
Pollution Prevention Plan(SPPP) and training.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
A summary of the facility's stormwater exposure items and associated BMPs is listed in the table
below.
Table 1. Summary of Stormwater Exposure Item,Location,and Best Mana ement Practices (BMPs)
Stormwater Exposure Item Location BMPs
500-Gallon Hydraulic Oil Tank Southeast of The tank is located under roof
Production Building and is equipped with concrete
secondary containment.
250-Gallon Hydraulic Oil Tank Southeast of The tank is located under roof
Production Building and is equipped with concrete
secondary containment.
Scrap Tubing/Sheet Metal Southeast of Scrap tubing and sheet metal
Production Building are located on racks and on the
ground. Some items are stored
these items inside the building.
Miscellaneous Storage Southeast of Miscellaneous items are stored
Production Building on the ground east of the
production building. Some
items are stored under canopy
or inside the building.
Loading Dock East Side of The loading dock is covered.
Production Building
Scrap Metal Roll-Off(Open) East Side of The roll-off is open. The
Production Building facility sweeps around the roll-
off on a frequent basis.
Trash Compactor(Enclosed) East Side of The trash compactor is
Production Building enclosed. The facility sweeps
around the trash compactor on
a frequent basis.
30 Cubic Yard Trash Roll-Off(Open) East Side of The roll-off is open. The
Production Building facility sweeps around the roll-
off on a frequent basis.
(2)288-Gallon Diesel Tanks inside East Side of The tanks are single-walled
Pump House Production Building tanks but are located within the
Pump House Building. The
tanks are inspected on a
monthly basis.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
Stormwater Exposure Item Location Comments and BMPs
Covered Canopy Area Containing: East Side of The area is covered and is
- Floor Sweeper Production Building equipped with curbing.
- 20 Yd.Spent Sand Roll-Off The facility frequently monitors
- Metal Chip Dumpster the area.
- Cutting Fluid
Recycling Process
(Includes 300-
Gallon Recycled
Cutting Fluid Tote)
- Empty Drum Storage
Containment Buildings containing Northeast of The containment buildings are
MAK,Hazardous Waste,Oils, Production Building enclosed and secondarily
Coolants contained,which prevents
materials from entering the
stormwater system.
Pallets Northeast of Pallets are stored on the ground.
Production Building The facility limits the number of
pallets stored outside.
Metal Parts Northeast of Metal parts are stored in wire
Production Building baskets northeast of the
production building. Some
parts are stored inside.
Cooling Tower Northeast Side of The facility monitors the use of
Production Building chemicals in the cooling tower
and monitors the containment
for leaks.
Dust Collectors and Sand Northeast Side of The facility has four dust
Pretreatment Area Production Building collectors and a sand
pretreatment area. The facility
routinely sweeps and properly
disposes of particulates.
Regenerative Thermal Oxidizer Northeast Side of The facility has an RTO to reduce
(RTO)Stack and Baghouse Production Building toxins in the air emissions from
the pouring,cooling,shakeout,
and quench processes. The
facility routinely sweeps this area
and properly disposes of
articulates.
Shipping and Receiving Dock Northeast Side of Shipping and receiving is
Production monitored by a BRP employee.
Building
Propane Tanks Northeast Side of Small propane tanks are stored
Production Building at the rear of the facility. Three
and Plant 30,000-gallon propane tanks are
Drive located near the plant drive.
Releases from propane tanks
would not reach stormwater.
Sand Hopper(Open) East Side of The hopper is open. The
Production Building facility sweeps around the
hopper on a frequent basis.

EPA Identification Number NPDES Permit Number Facility Name
110012281627 NCS000093 BRP US Inc.
Changes Since Previous Permit Issuance
No changes related to stormwater have occurred at the facility since the previous NPDES permit
was issued.
Minor modifications to operations that are more related to air quality have included or will
include the following:
• Replaced the CD-1 bagfilter because the existing bagfilter was underrated and at the end of
its service life. The replacement bagfilter is a Donaldson DFE 4-32 Dust Collector,which
contains 32 ultra-web cartridge filters with a filter area of 8,128 square feet, a differential
pressure meter, and an effective cleaning system.
• Venting the following insignificant natural gas-fired ovens through the building roof rather
than exhausting inside the manufacturing building,both to meet National Fire Protection
Association(NFPA) requirements and to improve indoor air quality:
o ES-17,Heat Treat No. 1 Solution Oven for Cast Line No. 1,3.0 MMBtu/hr capacity;
o ES-18,Heat Treat No. 3 Solution Oven for Cast Line No. 2,3.0 MMBtu/hr capacity;
o ES-30,Age Oven No. 1 (AO-01), 1.0 MMBtu/hr capacity;
o ES-31,Age Oven No. 2 (AO-02),1.0 MMBtu/hr capacity;and
o ES-38,Age Oven No. 3 (AO-03), 1.0 MMBtu/hr capacity.
• Removed ES-47,Paint Spray Booth and Associated Bake Oven (3.0 MMBtu/hr capacity),
since painting is done off-site by a vendor. As a result,this source has been removed from
the facility. This reduces the amount of hazardous waste generated at the facility.
• Added Dehumidifiers #1 and #2 for the Styrofoam Drying ovens.
• Replaced the Emergency Generator.
• Replaced the CD-16 bagfilter because the existing bagfilter was underrated and at the end
of its service life.
• Removed ES-44,Boiler#2 (14.7 MMBtu/hr capacity),since Boiler#1 is larger and sufficient
for plant operation.