NCS000021_Fact sheet binder_20240508

DEQ / DEMLR
FACT SHEET FOR NPDES INDUSTRIAL INDIVIDUAL
STORMWATER PERMIT DEVELOPMENT
Basic Information for Permit Issuance and Renewals:
Permit Writer/Date Brianna Young 4/24/2024
Permit Number NCS000021
Owner/Facility Name Siemens Energy,Inc./Charlotte Turbine Generator
Service Center
3511 (333611)/Steam, Gas, and Hydraulic
SIC(NAICS)Code/Category Turbines,and Turbine Generator Sets(Turbine and
Turbine Generator Set Units Manufacturing)
Basin Name/Sub-basin number Catawba/03-08-34
Receiving Stream/HUC Catawba River(Lake Wylie below elevation 570)
North Carolina portion/030501011406
Stream Classification/Stream Segment WS-V,B/ 11- 123.5
Is the stream impaired [on 303(d) list]? Yes See Section 2 below
Any TMDLs? Yes See Section 2 below
Any threatened and/or endangered species? See Section 2 below
Any compliance concerns? See Section 2 below
Any permit mods since lastpermit? No
New expiration date 5/31/2029
Comments on Draft Permit? See Section 6 below
Section 1. Facility Activities and Process:
The Charlotte Turbine Generator Service Center manufactures and repairs large power generation
rotating equipment and associated auxiliaries. The facility manufactures turbines and generators for
power generation and stores large amounts of No. 2 fuel oil and diesel onsite. Per the permit renewal
application,used/manufactured toxics include: Nitrate-nitrite, total nitrogen, total phosphorus, O&G,
surfactants, total molybdenum, total aluminum, total chromium, total copper, total nickel, total
antimony, and total iron. The renewal application also states material inventory includes ethylene glycol
(residue in empty drums) and Teflon resin film tapes (dumpsters).
Per information provided via email (dated 2/2/2024), the facility plans to abandon five (5) existing
stormwater sampling locations/outfalls and add one (1)new stormwater sampling location. Proposed
sampling location OF-016 drains runoff from the following existing sampling locations that are
proposed for abandonment/removal from the stormwater sampling plan:
• OF-002 and OF-003 drain the property through channels and eventually combine and discharge
into Lake Wylie (through proposed OF-016).
• OF-012, which is located at the outlet pipe of the West Wet Pond, approximately 150-feet
upstream of proposed OF-016.
• OF-013, which is located at the outlet pipe of the Southwest Wet Pond.
• OF-014, which is located along a channel on the west side of the site. OF-014 discharges directly
into Lake Wylie and drains some runoff from OF-002.
As stormwater runoff from each of the five (5) sampling locations listed above drain through proposed
sampling location OF-016, stormwater samples collected at this location would be representative of
stormwater at each the five (5) locations proposed to be abandoned.
Page 1 of 11

Outfall SW005:
Drainage area consists of railroad tracks, well water system (abandoned), maintenance storage, and
finished product storage.
Outfall SW006:
Drainage area consists of part of the generator and steam service center(Charlotte Turbine Generator
Service Center), generator storage, global VPI, nitrogen storage tanks, GVPI emergency generator with
fuel tank, HI-vac dust collector system exhaust, waste material-non product areas, generator balance
bunker, transformers, a 1,000 gallon diesel fuel storage tank, and dust collector(glass bead).
Outfall SW007:
Drainage area consists of finished product storage areas, and parking lot.
Outfall SW008:
Drainage area consists of maintenance storage, gravel area, and parking lot.
Outfall SWO10:
Drainage area consists of a wet pond, office buildings, a transformer, roof drains, and parking lots.
Discharge is from the southeast wet pond.
Outfall SWO11:
Drainage area consists of a wet pond and employee parking lots. Discharge is from the northeast wet
pond.
Outfall SW014:
Drainage area consists of roadways.
Outfall SW015:
Drainage area consists of roadways, a spoil area, and an abandoned well water system.
Outfall SW016:
Drainage area consists of the generator and steam service center(Charlotte Turbine Generator Service
Center), gas turbine facility, heat treat building, ISA maintenance storage building, drum/flammable
materials storage facility, loop heating building, warehouse, finished product storage areas, oil storage
buildings, insulation material lab, nickel-plating line, tool storage area, exciter balance, rotor assembly
wash booth, large parts warehouse wash booth, new product drum storage building, empty drum
storage/mobile tank, hazardous waste storage area,propane vaporizing shed, painting facilities, roofed
chip storage, valve components, chip conveyor discharge, vacuum spin bunker, dust collector systems,
Clemco dust collector exhaust, cooling towers, shipping and receiving areas, loading dock,product
storage areas, manufacturing support product areas, wet ponds, roadways, parking lots, empty drum
storage/mobile tank, transformer, emergency generators, one (1) 850-gallon emergency generator diesel
fuel AST, dumpsters, one (1) 500 gallon used oil storage tank, three (3) 7,500-gallon lubrication oil
ASTs, gas cylinder storage area, LP gas storage area, one (1) 1,000 gallon chip conveyor coolant recover
AST, argon storage tanks, helium storage tanks, one (1) 3,500 gallon No. 2 AST, one (1) 1,500 gallon
soap solution tank, one (1) 5,000 gallon used oil/water AST, one (1) 500 gallon kerosene AST, one (1)
3,500 gallon used oil AST, one (1) 1,325-gallon diesel fuel AST, substation, water tank, clearwell
pumphouse, clarifier, and a No. 6 fuel oil pump station.
Page 2 of 11

Additional Outfalls:
Outfall 001:
Per information available in the permit history, this outfall receives runoff from offsite sources (City of
Charlotte stormwater drainpipe and General Motors facility), therefore it is not representative of
industrial activity occurring on Siemens Energy, Inc. Therefore, this outfall was removed from the
permit.
Outfall SW002: Replaced by SW016 at permit renewal
Drainage area consists of part of the generator and steam service center(Charlotte Turbine Generator
Service Center), transformer, receiving area, loop heating building, shipping prep, exciter balance, five
(5) dust collector systems, one (1) 500 gallon used oil storage tank, three (3) 7,500 gallon lubrication oil
ASTs, gas cylinder storage area, LP gas storage area, cooling tower, nickel-plating line, emergency
response team building, tool storage area, loading dock, painting facilities, roofed chip storage drainage,
dumpster, and oil storage building.
Outfall SW003: Replaced by SW016 at permit renewal
Drainage area consists of the generator and steam service center(Charlotte Turbine Generator Service
Center), valve components, heat treat building,product storage areas, chip conveyor discharge, one (1)
1,000 gallon chip conveyor coolant recover AST, office, dumpster, one (1) 850 gallon emergency
generator diesel fuel AST, shipping areas, manufacturing support product areas, argon storage tanks,
helium storage tanks, dust collector, emergency generator, one (1) 3,500 gallon No. 2 AST, vacuum spin
bunker, shipping material areas,paint and cleaning rooms, one (1) 1,500 gallon soap solution tank, one
(1) 5,000 gallon used oil/water AST, one (1) 500 gallon kerosene AST, a propane vaporizing shed, a
cooling tower, a drum/flammable materials storage facility, new product drum storage building, empty
drum storage/mobile tank,used oil storage building, one (1) 3,500 gallon used oil AST, hazardous waste
storage area, and insulation material lab.
Outfall SW004:
Abandoned in 2009.
Outfall SW009:
Abandoned in 2010.
Outfall SW012: Replaced by SW016 at permit renewal
Drainage area consists of a wet pond, gas turbine facility, rotor assembly wash booth, large parts
warehouse wash booth, Clemco dust collector exhaust, warehouse building, ISA maintenance storage
building, dumpster, emergency generator, one (1) 1,325 gallon diesel fuel AST, finished product storage
areas, roof drains, and parking lots. Discharge is from the west wet pond.
Outfall SW013: Replaced by SW016 at permit renewal
Drainage area consists of a wet pond, gas turbine facility, and empty drum storage/mobile tank.
Discharge is from the southwest wet pond.
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
Page 3 of 11

include discharges from facilities or activities excluded from the NPDES program under this part 122.
For the categories of industries identified in this section, the term includes, but is not limited to, storm
water [sic] discharges from industrial plant yards; immediate access roads and rail lines used or traveled
by carriers of raw materials, manufactured products, waste material, or byproducts used or created by
the facility; material handling sites; refuse sites; sites used for the application or disposal of process
waste waters (as defined at part 401 of this chapter); sites used for the storage and maintenance of
material handling equipment; sites used for residual treatment, storage, or disposal; shipping and
receiving areas; manufacturing buildings; storage areas (including tank farms) for raw materials, and
intermediate and final products; and areas where industrial activity has taken place in the past and
significant materials remain and are exposed to storm water. For the purposes of this paragraph, material
handling activities include storage, loading and unloading, transportation, or conveyance of any raw
material, intermediate product, final product, byproduct or waste product. The term excludes areas
located on plant lands separate from the plant's industrial activities, such as office buildings and
accompanying parking lots as long as the drainage from the excluded areas is not mixed with storm
water [sic] drained from the above described areas."
Section 2. Monitoring Information and Compliance History:
• October 2017 to December 2022,benchmarks exceeded for:
o SWO06: TSS Ix
o Only 1 sample taken per year at each outfall except 2022
■ Visual monitoring only conducted one time per year except 2022
■ No samples taken or visual monitoring performed for any outfall in 2018
o No monitoring data provided for outfalls SW008, SW014, and SWO15
• Per the October 2022 inspection report:
o Facility inspections occurred once per year(permit requires semi-annual)
o Qualitative and analytical monitoring occurred once per year(permit requires semi-
annual)
303(d) listing:
CATAWBA RIVER(Lake Wylie below elevation 57a) 11-(123.5)a W5-V,B 3,238.4 FW Acres
North Carolina portion
314 From the upstream side of Paw Creek Arm of Lake Wylie to North Carolina-South Carolina State Line
PARAMETER IR CATEGiORY CRITERIA STATUS REASON FOR RATING 303D YEAR
PCB Fish Tissue Advisory(Advisory,FC,NC} 0 E..din Criteria DHHS Fish Consumption Advisory 1 201
TMDL:
A TMDL exists for Lake Wylie in the Catawba River Basin, which includes discharge point(s) for
Siemens Energy, Inc. The TMDL is for Total Nitrogen and Total Phosphorus.
Page 4 of 11

Lake Wylie
• Pollutant:Total Phosphorus,Total Nitrogen
• Assessment Units:
• EPA Approved:2/5/1996
• Final TMIDL Document
Threatened/Endangered Species:
Threatened species near the discharge location include the Tall Larkspur(Delphinium exaltatum; NC
status: T). Additional species of concern in the nearby vicinity include Atlantic Highfin Carpsucker
(Carpiodes sp. cf. velifer; 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 October 2017 to December 2022. Quantitative sampling included pH, TSS, O&G, total
nitrogen, and naphthalene.
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 Siemens Energy, Inc. site.
Page 5 of 11

Outfalls SW005, SW006, SW007, SW008, SWO10, SWO11, SW014, and SW015
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
H BASIS: Pollutant indicator and important to interpreting toxicity potential
p of metals.
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Quarterly monitoring
COD BASIS: Discharge potential indicator
Quarterly monitoring
Total Aluminum BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Chromium BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Copper BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Lead BASIS: Discharge potential indicator
Quarterly monitoring
Total Zinc BASIS: Discharge potential indicator
Quarterly monitoring
Total Hardness BASIS: Monitoring for hardness dependent metals present
Page 6 of 11

Outfall SWO16
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
H BASIS: Pollutant indicator and important to interpreting toxicity potential
p of metals.
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Quarterly monitoring
BOD BASIS: Discharge potential indicator
Quarterly monitoring
COD BASIS: Discharge potential indicator
Quarterly monitoring
Total Nitrogen BASIS: Discharge potential indicator and potential pollutant in drainage
area
Quarterly monitoring
Total Phosphorus BASIS: Discharge potential indicator and potential pollutant in drainage
area
Quarterly monitoring
BASIS: Potential pollutant from drainage area; Per previous permit fact
Naphthalene sheet: Monitor for heavier fuel oils such as No. 2 fuel oil and diesel that
tend to be underreported using EPA Method 1664 for Oil & Grease
Quarterly monitoring
Molybdenum BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Antimony BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Aluminum BASIS: Potential pollutant from drainage area
Page 7 of 11

Outfall SW016 (cont.)
Quarterly monitoring
Total Chromium BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Copper BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Lead BASIS: Discharge potential indicator
Quarterly monitoring
Total Nickel BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Zinc BASIS: Discharge potential indicator
Quarterly monitoring
Total Hardness BASIS: Monitoring for hardness dependent metals present
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
Page 8 of 11

benchmark, the Division may develop a benchmark value if appropriate toxicity data become available
or if rising trends in concentrations suggest a persistent source.
A summary of the benchmarks in the draft permit, and their basis, is below:
Parameter Benchmark Basis
Total Suspended 100 mg/L National Urban Runoff Program(NURP) Study, 1983
Solids TSS
H 6 s.u. —9 s.u. NC Water Quality Standard(Range)
Non-Polar Oil & Review of other state's daily maximum benchmark
Grease 15 mg/L concentration for this more targeted O&G;NC WQS that
EPA Method 1664 does not allow oil sheen in waters
(SGT-HEM)
BOD 30 mg/L BPJ; Based on Secondary Treatment Regulation(40 CFR
133.03
COD 120 mg/L BPJ; Generally found at levels 4x BOD5 in domestic
wastewaters
Total Nitrogen 30 mg/L TKN +Nitrate+Nitrite Benchmarks (Expressed in mg/L of
N
Total Phosphorus 2 mg/L BPJ; Based on wastewater permit limits for NSW waters
Molybdenum 510 mg/L '/2 FAV
Naphthalene 1 mg/L '/2 LOEL
Antimony Total 340 /L Acute Aquatic Criterion, '/2 FAV
Aluminum Total 750 /L '/2 FAV
'/2 FAV; Based on(Cr III+Cr VI) acute thresholds and
Chromium(Total) 905 µg/L assumption that industrial activities here are not a source of
hexavalent chromium
Copper Total 10 /L Acute Aquatic Criterion, '/2 FAV
Lead Total 75 /L Acute Aquatic Criterion, '/2 FAV
Nickel Total 335 /L Acute Aquatic Criterion, '/2 FAV
Zinc Total 126 /L Acute Aquatic Criterion, '/2 FAV
Stormwater Pollution Prevention Plan: The proposed permit conditions reflect the EPA and NC's
pollution prevention approach to stormwater permitting. The Division's maintains that implementation
of Best Management Practices (BMPs) and traditional stormwater management practices that control the
source of pollutants meets the definition of Best Available Technology (BAT) and Best Conventional
Pollutant Control Technology(BCT). The permit conditions are not numeric effluent limitations but are
designed to be flexible requirements for implementing site-specific plans to minimize and control
pollutants in stormwater discharges associated with the industrial activity. Title 40 Code of Federal
Regulations (CFR) §122.44(k)(2) authorizes the use of BMPs in lieu of numeric effluent limitations in
NPDES permits when the agency finds numeric effluent limitations to be infeasible. The agency may
also impose BMP requirements which are "reasonably necessary" to carry out the purposes of the Act
under the authority of 40 CFR 122.44(k)(3). The conditions proposed in this draft permit are included
under the authority of both of these regulatory provisions. In essence, the pollution prevention and BMP
requirements operate as limitations on effluent discharges that reflect the application of BAT/BCT.
Flexibility in Tier Responses: Tier Two actions provide an opportunity for the permittee to propose an
alternative monitoring plan for approval by the Region:
Page 9 of 11

• 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 and online SWPPP certification requirements removed per updated stor nwater
program requirements
• eDMR requirement added
• Boilerplate language moved into body of the permit; boilerplate no longer attached
• Outfall-specific monitoring been implemented to reflect industrial activity and potential
pollutants specific to each discharge area
• Monitoring for COD added to all outfalls due to industrial activity occurring onsite
• Monitoring for BOD added to all outfalls as shipping timbers, wood boxes and packaging, and
hazardous waste accumulation area overflow are stored outside
• Monitoring for lead and zinc added for all outfalls due to storage of metal products outside
• Outfall SWO16 has been added based on information provided by the permittee during renewal
o Outfalls SW002, SW003, SW012, and SWO13 removed as all drain to SWO16
Page 10 of 11

o Monitoring added for total phosphorus, aluminum, iron, molybdenum, chromium,
copper, nickel, and antimony based on information provided with the permit renewal
application as application identified these as toxics used/manufactured onsite
• Monitoring for total hardness added for outfalls where monitoring for hardness dependent metals
is required
• Benchmarks updated for parameters per guidance from DWR Standards group on stormwater
benchmarks
Section 5. Changes from draft to final:
• None
Section 6. Discussions with the Facility and Regional Office:
• Initial contact with facility: 9/8/2023
• Initial contact with Regional Office: 9/7/2023
• Draft sent to CO peer review: 2/14/2024
• Draft sent to Regional Office: 2/28/2024
• Final permit sent for supervisor signature: 5/1/2024
Section 7. Comments received on draft permit:
• Ray Whitner (PWS; via email 3/19/2024): I concur with issuance of the above permit as I have
no appreciable expertise in implementation of the Clean Water Act requirements and have
minimal understanding of the information provided. As a result, I have no basis for opposing the
permit.
Page 11 of 11

The Beautort Gazette Durham I The Herald-Sun The Modesto Bee
The Belleville News-Democrat Port Worth Star-Telegram The Stuff News-Mvrtle Beach
Bellingham Herald The Fresno Bee Raleigh News&Observer
McClatch Centre Daily Times The Island Packet Rock Hill The Herald
Sun Herald the Kansas City Star The Sacramento Bee
Idaho Statesman Lexington Herald-Leader San Luis Obispo Tribune
Bradenton Herald The Telegraph-Macon Tacoma I The News Tribune
The Charlotte Observer Merced StmStar Tri-City Herald
The State Miami Herald The Wichita Eagle
Ledger-Enquirer El Nuevo Herald The Olympian
AFFIDAVIT OF PUBLICATION
Account# Order Number Identification Order PO Amount Cols Depth
38106 524732 Print Legal Ad-IPL01615380-IPLO161538 $667.32 2 27 L
Attention: Joyce Sanford Clark North Carolina } SS
NC DENR ENGERGY MINERAL&LAND RESOURCES Mecklenburg County }
1612 MAIL SERVICE CENTER Before the undersigned,a Notary Public of said
RALEIGH,NC Z76991612 County and State,duly authorized to administer
[e-mail] oaths affirmations,etc.,personally appeared,
being duly sworn or affirmed according to law,
----------------------------------------- clothdepose an sa
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Y that he/s eisa
INTENT TO ISSUE representative of The Charlotte Observer
NPDES STORMWATER DISCHARGE PERMITS
The North Carolina Environmental Management Commission proposes to issue Publishing Company,a corporation organized and
NPDES stormwater discharge permit(s) to the person(s) listed below. Public doing business under the laws of the State of
comment or objection to the draft permits is invited.Written comments regarding
the proposed permit will be accepted until 30 days after the publish date of this Delaware,and publishing a newspaper known as
notice and considered in the final determination regarding permit issuance and
permit provisions.The Director of the NC Division of Energy,Mineral,and Land The Charlotte Observer in the city of Charlotte,
Resources (DEMLR) may hold a public hearing should there be a significant County of Mecklenburg,and State of North
degree of public interest. Please mail comments and/or information requests to y
DEMLR at 1612 Mail Service Center,Raleigh,NC 27699-1612. Carolina and that as such he/she Is familiar with
• Siemens Energy,Inc.[5101 Westinghouse Blvd,Charlotte,NC 28273]has the books,records,files,and business of said
requested renewal of permit NCS000021 for the Charlotte Turbine Gen-
eratorCorporationandfiles Service Center in Mecklenburg County.This facility discharges to p y
the Catawba River and an unnamed tributary to the Catawba River in the publication,the attached advertisement was
Catawba River Basin.
inserted.The following is correctly copied from
Interested persons may visit DEMLR at 512 N. Salisbury street, Raleigh, NC the books and files of the aforesaid Corporation
27604 to review information on file.Additional information on NPDES permits p
and this notice may be found on our website: https://deq.nc.gov/about/divi- and Publication.
s ions/e nergy-m i neral-and-land-resou rces/stormwater/stormwate r-program/
stormwater-public-notices,or by contacting Brianna Young at brianna.young @
deq.nc.gov or 919-707-3647. 1 insertion(s)published on:
IPL0161538
Feb 27 2024 ; 02/27/24
f
In Testimony Whereof I have hereunto set my hand
and affixed my seal on the 24th day of April,2024
Notary Public in and for the state of Texas,residing in
Dallas County
�'`' "'• STEPHANIE:HATCHER
x: •- My Notary 10#1335YAkI6
Wires J'anuary 14,2026
Extra charge for lost or duplicate affidavits.
Legal document please do not destroy!

Young, Brianna A
From: Whitner, Raymond A
Sent: Tuesday, March 19, 2024 7:59 AM
To: Young, Brianna A
Cc: Cook, Clinton
Subject: Draft NPDES stormwater permit NCS000021
Dear Ms.Young:
I appreciate the opportunity to review the subject draft NPDES permit and have included my response below in bold to
satisfy the new paperless standards.
I concur with issuance of the above permit as I have no appreciable expertise in implementation of the Clean Water
Act requirements and have minimal understanding of the information provided. As a result, I have no basis for
opposing the permit.
If you have any questions or need any additional information, please let me know.
Sincerely,
Ray Whitner
Raymond A.Whitner,III
Assistant Regional Engineer
Division of Water Resources- Public Water Supply Section
e-04r D North Carolina Department of Environmental Quality
E
. 704 235 2132 office
n,a� wr:••k �a,,,m� 9$0 447 0215 cell
704 663 6040 fax
Raym on d.Ulf h itn er(cipd eq.n c.g ov
Moofesvlllel Reg ion M Office
610 East Center Avenue, Suite 301
Mooresville, NC 20115
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
1

Compliance Inspection Report
Permit:NCS000021 Effective: 08/01/17 Expiration: 07/31/22 Owner: Siemens Energy Inc
SOC: Effective: Expiration: Facility: Charlotte Turbine Generator Service Center
County: Mecklenburg 5101 Westinghouse Blvd
Region: Mooresville
Charlotte NC 28273
Contact Person:Richard Pope Title: Phone: [phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On-Site Representative(s):
Related Permits:
Inspection Date: 10/12/2022 Entry Time 02:OOPM Exit Time: 05:OOPM
Primary Inspector:Water Quality Program Meckenburg County Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Complaint Inspection Type: Compliance Evaluation
Permit Inspection Type: Stormwater Discharge, Individual
Facility Status: Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page 1 of 4

Permit: NCS000021 Owner-Facility:Siemens Energy Inc
Inspection Date: 10/12/2022 Inspection Type:Compliance Evaluation Reason for Visit: Complaint
Inspection Summary:
At the time of inspection, the facility was observed to be in compliance with the City of Charlotte Stormwater Pollution
Control Ordinance. Please see the inspection report for recommendations and comments.
Page 2 of 4

Permit: NCS000021 Owner-Facility:Siemens Energy Inc
Inspection Date: 10/12/2022 Inspection Type:Compliance Evaluation Reason for Visit: Complaint
Stormwater Pollution Prevention Plan Yes No NA NE
Does the site have a Stormwater Pollution Prevention Plan? ❑ ❑ ❑
#Does the Plan include a General Location (USGS) map? ❑ ❑ ❑
#Does the Plan include a"Narrative Description of Practices"? ❑ ❑ ❑
#Does the Plan include a detailed site map including outfall locations and drainage areas? ❑ ❑ ❑
#Does the Plan include a list of significant spills occurring during the past 3 years? ❑ ❑ ❑
#Has the facility evaluated feasible alternatives to current practices? ❑ ❑ ❑
#Does the facility provide all necessary secondary containment? ❑ ❑ ❑
#Does the Plan include a BMP summary? ❑ ❑ ❑
#Does the Plan include a Spill Prevention and Response Plan (SPRP)? ❑ ❑ ❑
#Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? ❑ ❑ ❑
#Does the facility provide and document Employee Training? 0 ❑ ❑ ❑
#Does the Plan include a list of Responsible Party(s)? 0 ❑ ❑ ❑
# Is the Plan reviewed and updated annually? 0 ❑ ❑ ❑
#Does the Plan include a Stormwater Facility Inspection Program? 0 ❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented? 0 ❑ ❑ ❑
Comment: The SWPPP was reviewed and updated on 5/20/2022. The most recent evaluation of
stormwater outfalls occured and was recorded on 4/20/22. Secondary containment was
observed at the larger tanks. No secondary containment was observed where the totes and
hazardous waste is stored outdoors. The facility should use secondary containment when
necessary. The facility has a log of all releases from secondary containment. A log of all spills
included in the SWPPP, and a notation of no spills is included in the SWPPP for years in which
no spills have occured. Facility inspections occured and were recoreded on 12/17/2019,
4/30/2020, 7/8/2021 and 3/9/2022. No inspection was recorded for the second half of 2020 or
first half of 2021. Facility inspections should be conducted semi-annually as required by the
NCS000021 permit. Employee training occured on several dates throughout 2022.
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring? 0 ❑ ❑ ❑
Comment: Qualitative monitoring occured and was recorded on 12/17/2019, 4/30/2020, 7/8/2021 and
3/9/2022. No monitoring was recorded for the second half of 2020 or first half of 2021.
Monitoring should be conducted semi-annually as required by the NCS000021 permit.
Analytical Monitoring Yes No NA NE
Has the facility conducted its Analytical monitoring? 0 ❑ ❑ ❑
#Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ 0 ❑
Comment: Analytical monitoring occured and was recorded on 12/17/2019, 4/30/2020, 7/8/2021 and
3/9/2022. No monitoring was recorded for the second half of 2020 or first half of 2021.
Monitoring should be conducted semi-annually as required by the NCS000021 permit.
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? 0 ❑ ❑ ❑
Page 3 of 4

Permit: NCS000021 Owner-Facility:Siemens Energy Inc
Inspection Date: 10/12/2022 Inspection Type:Compliance Evaluation Reason for Visit: Complaint
#Were all outfalls observed during the inspection? 0 ❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ 0 ❑ ❑
#Has the facility evaluated all illicit(non stormwater)discharges? ❑ ❑ ❑
Comment: No stormwater pollution issues were observed. The facility submitted a request for
representative outfall status in 2008. The facility could not provide an approval letter from the
state at the time of the inspection. The facility should have documentation from the state
approving the representative outfall status.
Page 4 of 4

Young, Brianna A
From: Eplin,Jerry W
Sent: Wednesday, February 14, 2024 8:40 AM
To: Young, Brianna A
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Brianna:
Their email indicates that all 5 of the outfalls they are wanting to remove flow through Outfall SW-016. However, I see
no way for outfall SW-014 to flow through Outfall SW-016. Based on the information they submitted, we could approve
removing SW002, SW003, SW012, SWO13 and using SW-016 instead. If they want to make the case that outfall SW-
016 is representative of SW-014,they can do that, but I'd hope to see analytical data showing that the results were
similar or that SW-016 was worse than SW-014.
Jerry W. Eplin, PE
Assistant Regional Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Office: [phone]
Email:[e-mail]
Physical and Mailing Address:
610 E. Center Ave. Suite 301
Mooresville, NC 28115
D- J
...... ... .. .,
EQ A)
66l,'el riii'ol'E T% runrflQflU1(WallYy
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
From:Young, Brianna A<[e-mail]>
Sent:Tuesday, February 6, 2024 9:05 AM
To: Eplin,Jerry W<[e-mail]>
Subject: FW: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good morning,
I received the below request for modification of outfalls at the Siemens Energy facility in Mecklenburg County. Does
MRO concur that the addition of SWO16 is an appropriate outfall addition to sample in place of SW002, SW003, SW012,
SW013, and SW014?
Thank you,
i

Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From: Miller, Byron <[e-mail]>
Sent: Friday, February 2, 2024 1:15 PM
To:Young, Brianna A<[e-mail]>
Cc: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Good afternoon, here is the follow up to our Teams meeting on Monday. Our consultant was onsite yesterday afternoon to locate
the outfall. A map with outfalls is also attached.
Siemens Energy, Inc. (Siemens) is proposing to update their stormwater sampling plan for their Charlotte Energy Hub location. These
proposed updates include abandoning five(5)existing stormwater sampling locations/outfalls;and adding one(1)additional
stormwater sampling location.The new proposed sampling location (OF-016) is located just below the confluence of two channels
south of the West Wet Pond (as shown on the attached Figure 1).The coordinates for proposed sampling location OF-016 are 35'
8'40.83"N,80°59'52.80"W.
Proposed sampling location OF-016 discharges directly into Lake Wylie and drains runoff from the following existing sampling
locations that are proposed for abandonment/removal from the stormwater sampling plan:
• OF-002 and OF-003 drain the property through channels and eventually combine and discharge into Lake Wylie(through
proposed OF-016).Approximately 8.4 acres drain to OF-002, and approximately 16.0 acres drain to OF-003.
• OF-012,which is located at the outlet pipe of the West Wet Pond,approximately 150-feet upstream of proposed OF-016.
Approximately 22.6 acres drain to OF-012.
• OF-013,which is located at the outlet pipe of the Southwest Wet Pond.Approximately 11.8 acres drain to OF-013.
• OF-014,which is located along a channel on the west side of the site. OF-014 discharges directly into Lake Wylie and drains
some runoff from OF-002 Approximately 2.9 acres drain to OF-014.
As stormwater runoff from each of the five(5)sampling locations listed above drain through proposed sampling location OF-016,
stormwater samples collected at this location would be representative of stormwater at each the five(5) locations proposed to be
abandoned.The total drainage area for proposed OF-016 is approximately 61.7 acres.
2

Byron Miller
Siemens Energy, Inc.
Environmental Protection, Health Management and Safety
5101 Westinghouse Boulevard
Charlotte 28273-9640, USA
Mobile: [phone]
byron.miller(cDsiemens-enerpy.com
SIEMENS
avers
Siemens Energy is a trademark licensed by Siemens AG.
From:Young, Brianna A<[e-mail]>
Sent: Friday,January 12, 2024 3:05 PM
To: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good afternoon,
I am following up on our previous correspondence. Please note this information is required in order to proceed with
the permit renewal review. If a response is not received by February 9, 2024,you may be subject to enforcement
action(s). Please let me know if you have any questions.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From:Young, Brianna A
Sent:Thursday, December 21, 2023 1:37 PM
3

To: 'Miller, Byron' <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good afternoon,
I am following up on our previous correspondence.The requested information is required in order to proceed with the
permit renewal review. Please let me know if you have any questions on this request.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From:Young, Brianna A
Sent:Wednesday, November 15, 2023 2:24 PM
To: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Byron,
Thank you for this information. In order to add the two new outfalls to the permit, please provide the assigned outfall
number, coordinates (in deg/min/sec format),the name of the receiving waterbody, and identify which areas/processes
discharge to which outfall location.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
4

The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From: Miller, Byron <[e-mail]>
Sent: Wednesday, November 15, 2023 2:00 PM
To:Young, Brianna A<[e-mail]>
Cc: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
I was under the impression that all stormwater went through OF-003, but after walking the area and reviewing it more
closely, I agree with your assessment. It looks like 2 outfalls need to be added. The area is fairly flat and between rail
lines but the two points indicated (stars on map below) would cover any runoff from the activities on the North end.
Byron Miller
Siemens Energy, Inc.
Environmental Protection, Health Management and Safety
5101 Westinghouse Boulevard
Charlotte 28273-9640, USA
Mobile: [phone]
bvron.miller(Dsiemens-energV.com
SIEMENS
anersy
Siemens Energy is a trademark licensed by Siemens AG.
From:Young, Brianna A<[e-mail]>
Sent: Wednesday, November 8, 2023 10:36 AM
To: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good morning Byron,
After reviewing all the information, I have a follow-up question. Items on the north end of the facility do not appear to
have a drainage area associated/assigned to them. Please confirm which outfall(s)the following area belongs to:
5

. AREA
-ER . .R
—� AREJ
d "H
49
1
SAMPLE POINT!
NO.003 -- l~ - 62 se
SEEM
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From:Young, Brianna A
Sent:Thursday, November 2, 2023 2:12 PM
To: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good afternoon Byron,
Thank you for sending this information. I will reach out to you once I've had a chance to review everything.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
6

NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From: Miller, Byron <[e-mail]>
Sent: Monday, October 30, 2023 2:46 PM
To:Young, Brianna A<[e-mail]>
Cc: Miller, Byron <[e-mail]>
Subject: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Please find attached the updated renewal. Contact me with any questions and let me know if I need to submit the hard
copy after your review.
Byron Miller
Siemens Energy, Inc.
Environmental Protection, Health Management and Safety
5101 Westinghouse Boulevard
Charlotte 28273-9640, USA
Mobile: [phone]
bvron.miller(Dsiemens-energy.com
SIEMENS
c3nefGY
Siemens Energy is a trademark licensed by Siemens AG.
From:Young, Brianna A<[e-mail]>
Sent: Friday, September 8, 2023 10:18 AM
To: Roof Jr, Paul <[e-mail]>
Cc: [e-mail]; Pope, Richard <[e-mail]>; Maragno, Brian
<[e-mail]>; Miller, Byron<[e-mail]>
Subject: Siemens Energy, Inc. stormwater permit NCS000021
7

ISome people who received this message don't often get email from [e-mail]. Learn why this is important
Good morning,
I am working on renewing the individual stormwater permit for the Siemens Energy, Inc. Charlotte Turbine
Generator Service Center(NCS000021). I need additional information in order to 1) confirm that the
information I have is correct and 2) make sure the permit adequately serves the needs of the facility. Please
provide the following:
• Description of industrial activity and chemicals stored in each drainage area;
• EPA Form 2F Section 5.1 was left blank. Please fill in this section;
• EPA Form 2F Tables A-D were left blank. Please provide this information; and
• Please state the receiving waterbody that discharges from Outfalls SWO06, SWO07, SWO08, and SWO10
enter. The permit renewal application states the Spray Pond, however,please provide the name of the
receiving stream the Spray Pond discharges to.
Enter your stormwater permit number into the Stormwater Permit Summary Report and you will see a form that
includes the address of the facility, contact information for the permit, and the regulated stormwater outfall(s)
for the facility. Please review the facility information to make sure it is correct. Information can be updated
using the links provided below, where applicable:
• Facility/Company name or ownership: Name/Ownership Change Form
• Owner Affiliation(Legally responsible person; i.e., someone with the company who is designated to
represent the company per signatory requirements or another authorized representative): Permit Contact
Update Request Form
• Delegation of Signature Authority (DOSA): Permit Contact Update Request Form
• Billing contact: Permit Contact Update Request Form
• Permit contact: Permit Contact Update Request Form
• Facility contact: Permit Contact Update Request Form
• Facility address only: Email Bethany og ulias
• Stormwater outfall information: Email Bethany Georgoulias
• Visit the eDMR Six Steps website and complete Steps 1 and 2
• Pay outstanding permit fees: Stormwater ePgMent website
Once I have the above listed information, I can continue my review. You will receive a draft permit for a 30-day
comment period. During this time we will be able to address any comments or concerns you have. During the
same 30-day period, the draft will be sent to a Regional Office staff member for review as well as out to public
notice. Once all comments and concerns are addressed, you may be issued a final permit.
Please contact me if you have any questions.
Thank you,
Brianna Young, MS (she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/ Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred) PLEASE NOTE NEW EMAIL ADDRESS
**DEQ is updating its email addresses to @deq.nc.gov in phases from May 1st to June 9th. Employee email addresses may look
different but email performance will not be impacted.
8

919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
9

Young, Brianna A
From: Miller, Byron <[e-mail]>
Sent: Friday, February 2, 2024 1:15 PM
To: Young, Brianna A
Cc: Miller, Byron
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Attachments: UPDATED STORMWATER OUTFALL LOCATIONS_20240202.pdf
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Good afternoon, here is the follow up to our Teams meeting on Monday. Our consultant was onsite yesterday afternoon to locate
the outfall. A map with outfalls is also attached.
Siemens Energy, Inc. (Siemens) is proposing to update their stormwater sampling plan for their Charlotte Energy Hub location. These
proposed updates include abandoning five(5)existing stormwater sampling locations/outfalls;and adding one(1)additional
stormwater sampling location.The new proposed sampling location (OF-016) is located just below the confluence of two channels
south of the West Wet Pond (as shown on the attached Figure 1).The coordinates for proposed sampling location OF-016 are 35'
8'40.83"N,80°59'52.80"W.
Proposed sampling location OF-016 discharges directly into Lake Wylie and drains runoff from the following existing sampling
locations that are proposed for abandonment/removal from the stormwater sampling plan:
• OF-002 and OF-003 drain the property through channels and eventually combine and discharge into Lake Wylie(through
proposed OF-016).Approximately 8.4 acres drain to OF-002, and approximately 16.0 acres drain to OF-003.
• OF-012,which is located at the outlet pipe of the West Wet Pond,approximately 150-feet upstream of proposed OF-016.
Approximately 22.6 acres drain to OF-012.
• OF-013,which is located at the outlet pipe of the Southwest Wet Pond.Approximately 11.8 acres drain to OF-013.
• OF-014,which is located along a channel on the west side of the site. OF-014 discharges directly into Lake Wylie and drains
some runoff from OF-002 Approximately 2.9 acres drain to OF-014.
As stormwater runoff from each of the five(5)sampling locations listed above drain through proposed sampling location OF-016,
stormwater samples collected at this location would be representative of stormwater at each the five(5) locations proposed to be
abandoned.The total drainage area for proposed OF-016 is approximately 61.7 acres.
Byron Miller
Siemens Energy, Inc.
Environmental Protection, Health Management and Safety
5101 Westinghouse Boulevard
Charlotte 28273-9640, USA
Mobile: [phone]
byron.miller(a-)siemens-energy.com
i

1#,=;/�� `\Rr �r J r ♦�'� + � {� t� / jai fir ♦ Cal �
�� .�, ,.,♦- Qom_, C` ,�� _
1 ` < N
<�, {TNE , d != : l .' , , �� , '► ' _� III J` , �.• '�• ` . -NORTHEAST Gl w
,��'-. / ♦ i, � ` -'�•t� t� � ..,. WET PONDr > 1
�.*ANC 0 � Q;O OF-003 SIEMENS AVE
� --'PARK CHgRLOTTE BL-VD �
q�T Ilk
INA
A' 'Hwr
;! A, k a
} z
f• r + .
L'Lf
v
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Z V
WEST WE POND L jVOL Lu
OF-012 r uj
ce� Z
OF-016 ��L- z
OF-013 : ^` v O
ji. N z V
LAKE WYLIE f + v SOUTHWEST +--� N 0
v'q WET POND r _ -, ce�
OF-014 �' T w m
OF-002 OF-006 N +n E�
w Z �
w
�; � , -•'\rf`� � a WET POND � �
r ~ti .; .- • can
y 4, '• w„ : j M SCALE:
t; . ;' LEGEND 1 ' = 400
DATE:
MECKLENBURG CO. STREETS
2-2-2024
MECKLENBURG CO. PARCELS PROJECT NUMBER
'F" .►, STORMWATER SAMPLING LOCATIONS/OUTFALLS 22350047
REFERENCE:
GIS BASE LAYERS AND AERIAL IMAGERY WERE OBTAINED FROM THE OWNER 0 400 800 •}, u PROPOSED NEW SAMPLING LOCATION FIGURE NO.
AND THE MECKLENBURG COUNTY. THIS MAP IS FOR INFORMATIONAL + ±- +•
(FEET) '
PURPOSES ONLY. ALL FEATURE LOCATIONS DISPLAYED ARE APPROXIMATED. t • EXISTING SAMPLING LOCATIONS PROPOSED FOR ABANDONMENT
0 EXISTING SAMPLING LOCATIONS NO PROPOSED CHANGES

SIEMENS
onerGy
Siemens Energy is a trademark licensed by Siemens AG.
From:Young, Brianna A<[e-mail]>
Sent: Friday,January 12, 2024 3:05 PM
To: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good afternoon,
I am following up on our previous correspondence. Please note this information is required in order to proceed with
the permit renewal review. If a response is not received by February 9, 2024,you may be subject to enforcement
action(s). Please let me know if you have any questions.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From:Young, Brianna A
Sent:Thursday, December 21, 2023 1:37 PM
To: 'Miller, Byron' <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good afternoon,
I am following up on our previous correspondence.The requested information is required in order to proceed with the
permit renewal review. Please let me know if you have any questions on this request.
2

Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From:Young, Brianna A
Sent:Wednesday, November 15, 2023 2:24 PM
To: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Byron,
Thank you for this information. In order to add the two new outfalls to the permit, please provide the assigned outfall
number, coordinates(in deg/min/sec format),the name of the receiving waterbody, and identify which areas/processes
discharge to which outfall location.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From: Miller, Byron <[e-mail]>
Sent: Wednesday, November 15, 2023 2:00 PM
To:Young, Brianna A<[e-mail]>
Cc: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
3

CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
I was under the impression that all stormwater went through OF-003, but after walking the area and reviewing it more
closely, I agree with your assessment. It looks like 2 outfalls need to be added. The area is fairly flat and between rail
lines but the two points indicated (stars on map below) would cover any runoff from the activities on the North end.
Byron Miller
Siemens Energy, Inc.
Environmental Protection, Health Management and Safety
5101 Westinghouse Boulevard
Charlotte 28273-9640, USA
Mobile: [phone]
bVron.miller(Dsiemens-energV.com
SIEMENS
c3nerGY
Siemens Energy is a trademark licensed by Siemens AG.
From:Young, Brianna A<[e-mail]>
Sent:Wednesday, November 8, 2023 10:36 AM
To: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good morning Byron,
After reviewing all the information, I have a follow-up question. Items on the north end of the facility do not appear to
have a drainage area associated/assigned to them. Please confirm which outfall(s)the following area belongs to:
f� \
4

. AREA
-ER . .R
—� AREJ
d "H
49
1
SAMPLE POINT!
NO.003 -- l~ - 62 se
SEEM
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From:Young, Brianna A
Sent:Thursday, November 2, 2023 2:12 PM
To: Miller, Byron <[e-mail]>
Subject: RE: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Good afternoon Byron,
Thank you for sending this information. I will reach out to you once I've had a chance to review everything.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
5

NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
From: Miller, Byron <[e-mail]>
Sent: Monday, October 30, 2023 2:46 PM
To:Young, Brianna A<[e-mail]>
Cc: Miller, Byron <[e-mail]>
Subject: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Please find attached the updated renewal. Contact me with any questions and let me know if I need to submit the hard
copy after your review.
Byron Miller
Siemens Energy, Inc.
Environmental Protection, Health Management and Safety
5101 Westinghouse Boulevard
Charlotte 28273-9640, USA
Mobile: [phone]
bvron.miller(Dsiemens-energy.com
SIEMENS
c3nefGY
Siemens Energy is a trademark licensed by Siemens AG.
From:Young, Brianna A<[e-mail]>
Sent: Friday, September 8, 2023 10:18 AM
To: Roof Jr, Paul <[e-mail]>
Cc: [e-mail]; Pope, Richard <[e-mail]>; Maragno, Brian
<[e-mail]>; Miller, Byron<[e-mail]>
Subject: Siemens Energy, Inc. stormwater permit NCS000021
6

ISome people who received this message don't often get email from [e-mail]. Learn why this is important
Good morning,
I am working on renewing the individual stormwater permit for the Siemens Energy, Inc. Charlotte Turbine
Generator Service Center(NCS000021). I need additional information in order to 1) confirm that the
information I have is correct and 2) make sure the permit adequately serves the needs of the facility. Please
provide the following:
• Description of industrial activity and chemicals stored in each drainage area;
• EPA Form 2F Section 5.1 was left blank. Please fill in this section;
• EPA Form 2F Tables A-D were left blank. Please provide this information; and
• Please state the receiving waterbody that discharges from Outfalls SWO06, SWO07, SWO08, and SWO10
enter. The permit renewal application states the Spray Pond, however,please provide the name of the
receiving stream the Spray Pond discharges to.
Enter your stormwater permit number into the Stormwater Permit Summary Report and you will see a form that
includes the address of the facility, contact information for the permit, and the regulated stormwater outfall(s)
for the facility. Please review the facility information to make sure it is correct. Information can be updated
using the links provided below, where applicable:
• Facility/Company name or ownership: Name/Ownership Change Form
• Owner Affiliation(Legally responsible person; i.e., someone with the company who is designated to
represent the company per signatory requirements or another authorized representative): Permit Contact
Update Request Form
• Delegation of Signature Authority (DOSA): Permit Contact Update Request Form
• Billing contact: Permit Contact Update Request Form
• Permit contact: Permit Contact Update Request Form
• Facility contact: Permit Contact Update Request Form
• Facility address only: Email Bethany og ulias
• Stormwater outfall information: Email Bethany Georgoulias
• Visit the eDMR Six Steps website and complete Steps 1 and 2
• Pay outstanding permit fees: Stormwater ePgMent website
Once I have the above listed information, I can continue my review. You will receive a draft permit for a 30-day
comment period. During this time we will be able to address any comments or concerns you have. During the
same 30-day period, the draft will be sent to a Regional Office staff member for review as well as out to public
notice. Once all comments and concerns are addressed, you may be issued a final permit.
Please contact me if you have any questions.
Thank you,
Brianna Young, MS (she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/ Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred) PLEASE NOTE NEW EMAIL ADDRESS
**DEQ is updating its email addresses to @deq.nc.gov in phases from May 1st to June 9th. Employee email addresses may look
different but email performance will not be impacted.
7

919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
8

Young, Brianna A
From: Miller, Byron <[e-mail]>
Sent: Monday, October 30, 2023 2:46 PM
To: Young, Brianna A
Cc: Miller, Byron
Subject: [External] RE: Siemens Energy, Inc. stormwater permit NCS000021
Attachments: NCS000021 NPDES permit renewal_v2_20231030_2023.pdf
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Please find attached the updated renewal. Contact me with any questions and let me know if I need to submit the hard
copy after your review.
Byron Miller
Siemens Energy, Inc.
Environmental Protection, Health Management and Safety
5101 Westinghouse Boulevard
Charlotte 28273-9640, USA
Mobile: [phone]
byron.miller(Dsiemens-energy.com
SIEMENS
c9nerGY
Siemens Energy is a trademark licensed by Siemens AG.
From:Young, Brianna A<[e-mail]>
Sent: Friday, September 8, 2023 10:18 AM
To: Roof Jr, Paul <pau1.roof @siemens-energy.com>
Cc: [e-mail]; Pope, Richard <[e-mail]>; Maragno, Brian
<[e-mail]>; Miller, Byron <[e-mail]>
Subject: Siemens Energy, Inc. stormwater permit NCS000021
ISome people who received this message don't often get email from [e-mail]. Learn why this is important
Good morning,
I am working on renewing the individual stormwater permit for the Siemens Energy, Inc. Charlotte Turbine
Generator Service Center(NCS000021). I need additional information in order to 1) confirm that the
information I have is correct and 2) make sure the permit adequately serves the needs of the facility. Please
provide the following:
i

• Description of industrial activity and chemicals stored in each drainage area;
• EPA Form 2F Section 5.1 was left blank. Please fill in this section;
• EPA Form 2F Tables A-D were left blank. Please provide this information; and
• Please state the receiving waterbody that discharges from Outfalls SWO06, SWO07, SWO08, and SWO10
enter. The permit renewal application states the Spray Pond, however,please provide the name of the
receiving stream the Spray Pond discharges to.
Enter your stormwater permit number into the Stormwater Permit Summary Report and you will see a form that
includes the address of the facility, contact information for the permit, and the regulated stormwater outfall(s)
for the facility. Please review the facility information to make sure it is correct. Information can be updated
using the links provided below, where applicable:
• Facility/Company name or ownership: Name/Ownership Change Form
• Owner Affiliation (Legally responsible person; i.e., someone with the company who is designated to
represent the company per signatory requirements or another authorized representative): Permit Contact
Update Request Form
• Delegation of Signature Authority (DOSA): Permit Contact Update Request Form
• Billing contact: Permit Contact Update Request Form
• Permit contact: Permit Contact Update Request Form
• Facility contact: Permit Contact Update Request Form
• Facility address only: Email Bethany og ulias
• Stormwater outfall information: Email Bethany Georgoulias
• Visit the eDMR Six Steps website and complete Steps 1 and 2
• Pay outstanding permit fees: Stormwater ePgMent website
Once I have the above listed information, I can continue my review. You will receive a draft permit for a 30-day
comment period. During this time we will be able to address any comments or concerns you have. During the
same 30-day period, the draft will be sent to a Regional Office staff member for review as well as out to public
notice. Once all comments and concerns are addressed, you may be issued a final permit.
Please contact me if you have any questions.
Thank you,
Brianna Young, MS (she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/ Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
**DEQ is updating its email addresses to @deq.nc.gov in phases from May 1st to June 9th. Employee email addresses may look
different,but email performance will not be impacted.
919-707-3647(office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
2

The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE 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
OF-002 Lake Wylie 35° 8' 36.69" 80° 59' 38.98"
c
0
OF 003 Lake Wylie 35° 8' 51.28" 80° 59' 41.62"
c�
0
J OF-005 Lake Wylie Y 35° 8' 28.54" 80° 59' 29.72"
is
p OF-006 Lake Wylie 35° 8' 37.28" 80° 59' 25.41"
OF-007 Lake Wylie 35° 8 32.77" 80° 59 24.95"
OF-008 Lake Wylie 35° 8 31.55" 80° 59' 26.95"
SECTION '• I
2.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes 0 No 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
c
m
E
as
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 3510-21F(Revised 3-19) Pagel

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349588 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
SECTIONDRAINAGE ,
a� 3.1 Have you attached a site drainage map containing all required information to this application?(See instructions for
M C specific guidance.)
in 'ce �
c` 0 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
OF-002 5.1 acres 8.4 acres
specify units specify units
OF-003 11.6 acres 16.0 acres
specify units specify units
OF-005 3.05 acres 3.2 acres
specify units specify units
OF-006 3.9 acres 6.3 acres
specify units specify units
OF-007 1.9 acres 2.4 acres
specify units specify units
OF-008 0.6 acres 0.6 acres
4.2 Provide a narrative description of the facility's significant material in the space below.(See instructions for content
requirements.)
OF-002, OF-003, &OF-013 drain areas where materials are stored and used at the facility include various types of
lubricating oils,fuel oils,diesel fuel,compressed cylinder gases(oxygen, argon, helium, nitrogen,anhydrous
c ammonia, hydrogen,and propane),abrasive blast cleaning particulates,steel turbine blades,along with turbine and
generator rotors and stator forgings.All bulk liquids(including oils and fuels)are stored in tanks within secondary
R containment structures. Hazardous wastes containers are managed in a secondary containment structure with
locking drain valves.
a Remaining outfalls drain finished product storage areas, roof drains,and employee parking lots.
See attachment
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)
OF-002 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-003 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-005 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-006 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-007 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-008 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
EPA Form 3510-2F(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05119
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
SECTION •N STORMWATER 1 1
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
nature Date signed
N
cm 5.2 Provide the testkig4formation requested in the table below.
Onsite Drainage Points
� Outfall Description of Testing Method Used Date(s)of Testing Directly Observed
CaNumber
During Test
NA
o`
c
0
z
SECTIONOR i 1
6.1 Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
y None.
.n
U)
`0
Y
(C
d
J
C
f6
V
w
.0
W
SECTIONDISCHARGE INFORMATIONI
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables you must
o com lete.Not all applicants need to complete each table.
7.1 Is this a new source or new discharge?
El estimated
4 See instructions regarding submission of No 4 See instructions regarding submission of
El
d
estimated data. actual data.
Tables A,B,C,and D
U) 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 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
7.3 Is the facility subject to an effluent limitation guideline(ELG)or effluent limitations in an NPDES permit for its process
wastewater?
❑ Yes ❑✓ No 4 SKIP to Item 7.5.
7.4 Have you completed Table B by providing quantitative data for those pollutants that are(1)limited either directly or
indirectly in an ELG and/or(2)subject to effluent limitations in an NPDES permit for the facility's process wastewater?
❑ Yes ❑ No
7.5 Do you know or have reason to believe any pollutants in Exhibit 2F-2 are present in the discharge?
❑ Yes ❑r 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-*SKIP 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?
0 ❑ Yes ❑ No
0 7.10 Do you expect any of the pollutants in Exhibit 2F-3 to be discharged in concentrations of 10 ppb or greater?
E ❑ Yes ❑✓ No 4 SKIP to Item 7.12.
0
7.11 Have you provided quantitative data in Table C for those pollutants in Exhibit 2F-3 that you expect to be discharged in
a, concentrations of 10 ppb or greater?
❑ Yes ❑ No
7.12 Do you expect acrolein,acrylonitrile,2,4-dinitrophenol,or 2-methyl-4,6-dinitrophenol to be discharged in concentrations
of 100 ppb or greater?
❑ Yes 0 No 4 SKIP to Item 7.14.
7.13 Have you provided quantitative data in Table C for the pollutants identified in Item 7.12 that you expect to be
discharged in concentrations of 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 ❑r No
7.15 Do you know or have reason to believe any pollutants in Exhibit 2F-4 are present in the discharge?
❑ Yes ❑r 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 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE 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
0 Yes ❑ No SKIP to Section 8.
0
7.19 List the pollutants below,including TCDD if applicable.
E
O
1.Nitrate-nitrite 4. Phosphorus(as P),total 7. Iron,total
m
a�
2• Nitrogen,total organic(as N) 5.Surfactants 8• Molybdenum,total
N_
3.Oil and grease 6.Aluminum,total 9. Chromium,total
SECTION • •GICAL TOXICITY TESTING 1 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
.y
❑ Yes 0 No 4 SKIP to Section 9.
8.2 Identify the tests and their purposes below.
Test(s) Purpose of Test Submitted to NPDESs) Date Submitted
X Permitting Authority?
0
~ ❑ Yes ❑ No
M
0 ❑ Yes ❑ No
0
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?
0 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 ENCO Laboratories S&ME,Inc.
0
E
L
O
H Laboratory address 102-A Woodwinds Industrial 2016 Ayrsley Town Blvd.,
>, Court,Cary,North Carolina Suite 2-A,Charlotte,North
Q27511 Carolina 28273
i�
R
L
o Phone number
U [phone] [phone]
Pollutant(s)analyzed Nitrate/Nitrite as N,pH, Consulting firm-S&ME,
Temperature,Total Kjedahl subcontract laboratory for
Nitrogen,Total Nitrogen,Total analysis is ENCO.
Suspended Solids
EPA Form 3510-2F(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349! NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
SECTION I CHECKLIST AND 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
0 Section 1 w/attachments(e.g., responses for additional outfalls)
H Section 2 ❑ w/attachments
0 Section 3 ❑✓ w/site drainage map
❑✓ Section 4 ❑� w/attachments
❑r Section 5 ❑ w/attachments
CU
❑✓ Section 6 ❑ w/attachments
CU
0 Section 7 ❑ Table A ❑ w/small business exemption request
o ❑ Table B 0 w/analytical results as an attachment
cc
❑ Table C ❑ Table D
❑ Section 8 ❑ w/attachments
y_ ❑ Section 9 ❑ w/attachments(e.g.,responses for additional contact laboratories or firms)
Y
CD ❑ 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
A .I tiAVAEi v P LA PV_6, E& eeo-a
Sign re Date signed
2o2z -016-08
EPA Form 3510-2F(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE SEE ATTACHED TABLE OMB No.2040-0004
TABLE A.CONVENTIONAL AND NON CONVENTIONAL1
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
2. Biochemical oxygen demand(BOD5)
3. Chemical oxygen demand(COD)
4. Total suspended solids(TSS)
5. Total phosphorus
6. Total Kjeldahl nitrogen(TKN)
7. Total nitrogen(as N)
pH(minimum)
8.
pH(maximum)
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.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE SEE ATTACHED TABLE OMB No.2040-0004
TABLE B.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.26(c)(1)(i)(E)(4)and 40 CFR 122.211(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)
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 NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE SEE ATTACHED TABLE OMB No.2040-0004
TABLE C.TOXIC POLLUTANTS,CERTAIN HAZARDOUS SUBSTANCES,AND ASBESTOS(40 CFR 122.26(c)(1)(i)(E)(4)and 40 CFR 122.21(g)(7)(vi)(B)and(vii))'
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 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)
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 11

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility name Outfall Number Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE SEE ATTACHED TABLE 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
Provide a description of the method of flow measurement or estimate.
EPA Form 3510-2F(Revised 3-19) Page 13

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
Form U.S Environmental Protection Agency
2F ��/E Application for NPDES Permit to Discharge Wastewater
NPDES STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
SECTIONOUTFALL LOCATIONi
1.1 Provide information on each of the facility's outfalls in the table below
Outfall Receiving Water Name Latitude Longitude
Number
OF-010 Facility Spray Pond 35° 8' 34.85" 80° 59' 23.52"
c
0
35° 8' 55.28" 80° 59' 26.60"
OF 011 Lake Wylie
0
J OF-012 Lake Wylie y 35° 8' 41.72" 80° 59' 51.85"
1C
w
p OF-013 Lake Wylie 35° 8' 40.21" 80° 59' 43.99"
OF-014 Lake Wylie 35° 8' 37.40" 80° 59 54.36"
OF-015 Lake Wylie 35° 8' 13.53" 80° 59' 34.43"
SECTION •• 1
2.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes 0 No 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
U)
a>
E
m
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

\ 1
2016 AYRSUITE -ASLEY WN BLVD
CHARLOTTE,NC 28273
[phone]
ENGINEERING FIRM
LICENSE NUMBER:F-0176
/ I130
-600-1 ��Es� / SAMPLEp NT
011
okk
00
580
^o NORTHEAST OG��� /
WET ` J
tA
POND
i \
SAMP POINT
J
i�j/j^ \ \\\ \ I i I I\ ( - - � � // / \ ♦ NO. 003LLI
s9o\ \- -' I / (Jj c- r \� i
0 0 0 HARLOTTE,
l j TURBINE
GENERATOR
LLI
I ' �� -640-I
SERVICE CENTER
CoAREA 012 / f / AREA 011 /
I
\ _ /I I � \ � 22.6 ACRES - j 7.8 ACRES _ -
tA
SAMPLE POINT -
I NO.I I 009Nammm/mmw AR -1A
_
HISTORICAL REFERENCE ONLY) 13
WEST6
WET 0 0
POND
\ \ I
AREA 010
j 16.8 ACRES
SAMPLE POINT 41
N0. 012 s¢o
600 I I 8.4ACRES AREA 006 �� � / - - \ \\ 1 I
SOUTHWEST I 6.3 ACRES)
SAMPLE AMPLE POINT
lo \ //�_ \\ \j NO. 013 POND j O._06
SAMPLE POINT NO. 004
(ABANDONED IN
2009; HISTORICAL _ / 2 �F AREA 007 \ ' 610
REFERENCE ONLY \ \ i 1 / \\ -0 9c'90o x 2.4 ACRES WET
-
`_ ISAIYIPLE POINT / SAMPLE POINT \ s �'F6) ' \ POND
NO. 014 _ ) I NO. 002 00 / \/
�S I l \ 0 �y� / SAMPLE POINT /
90 \ \ / �'2 /
NO. 010
2 CHARLOTTE TURBINE
�� \ \ GENERATOR
\� \ \ / oo ( \ \ SAMPLE POINT
NO. 007 SERVICE CENTER / �_ //
SPRAY POND >
AREA 008 / \ / Q
0.6 ACRES J \ /
\ \ /
SAMPLE POINT
J � / / / / / \ \ / / I \ ♦ / / X / \ - J� - '� III I NO. 008
I I - � \ ` °
580 _ _ I I o I - SAMPLE POINT/ / / I ` 1 \ J m
}
- -
I N0,005
DRAINAGE AREA SUMMARY
- /' �// /� �\ I Imo/ /J ♦ �\ \\ \� \\ - I // // j/ / // l \ 00 /, \ i -� \ 1 \ o
SAMPLE TOTAL DRAINAGE DRAINAGE SUB-AREA o
LOCATION AREA ACRES SUB-AREA TYPE ACRES SUB-AREA CN z
000
/J l I // // \ - - - \\ \I I\ \ S�� \_ / /' // 002 8.4 PAVED PARKING/ROOFS 5.1 98
/ / WOODS O Z
/ .
z _O
003 16.0 11.6 98 Q 0-
PAVED PARKING/ROOFS 4.4 77 UO U
/ /CI) / / / / \/ / I ^ \ i / \ WOODS&GRASS _j W
o / i
LU
l sg 005 3.2 2.3 89 a
\/ GRAVEL STREET/ROAD 0.9 77 WOODS U)
W
PAVED PARKING/ROOFS 3.9 98 0
-620, / ` / - 006 6.3 WOODS&GRASS
2.4 77 Q
S) \ / \ /- - - \ / / / PAVED PARKING/ROOFS o
O� \ \ / �r / ( 007 2.4 WOODS&GRASS 1.9 98
0.5 77
'do' \ / \ \ I \ \ _ L \ / / / GRAVEL STREET/ROAD 0.6 89 N
008 0.6 o W
J ` \ \� \ lJ/ / / (\ 1� 010 16.8 " m
y \ / PAVED PARKING/ROOFS 5.2 98 co
/ / / � �` J I I / / ( / \ \ . ` \ �\ / /\ / \ / \ \ ,\ WOODS&GRASS 11.6 77 C:)
SAMPLE
POINT' \ \ /
N0. 015 - - � / \ \ \�/ \ /I (/ lJ/ (\ \\ // \\ \\ \� - \ ` �1 011 7.8 PAVED PARKING/ROOFS 4.2 98 Oz
I ( I 1 I I I \ s� -- - I WOODS&GRASS 3 6 77
012 22.
6 PAPARKING/ROOFS 1
6.8
WOODS&GRASS 5.8 98
77Jam - � \ �0 \ L -
I-620 - - \\ \ / \ / �\ I\ \ ) ' // \\ o/ / / 013 11.8 PAVED PARKING/ROOFS 8•0 98
00 I I I I \ / \ / \ I WOODS&GRASS 3.8 77
014 2.9 GRAVEL STREET/ROAD 0.1 89
WOODS&GRASS 2.8 77
015 3.1
GRAVEL STREET/ROAD 0.9 89
L/ I / / / / // / \ \ I / / / / / I I - _ \ \ \ \ \ \ \ \\ I / WOODS&GRASS 2.9 77
01.o \ \ / / \ \ � \ \ \ \ I I
/ / ` \ - / � I r "004 SAMPLE LOCATION OUTFACE ABANDONED IN 2009; HISTORICAL REFERENCE ONLY CJ)
Lu
I tLu Z
/
\ � - \ \ \ \ \ 610, \ p/ / i V V 0 590 \ \ \ \ \ \ coy' o wr�
m LEGEND Z (� z
/ oc
APPROXIMATE SAMPLE POINT LOCATION • Q' 0 Q z
s 1 \ l
/ I \ / I I /' - //I / \\ / ( // o \ \\ \\ \ - J / / \ -' \\ \ \ DRAINAGE AREA BOUNDARY (, z O
ul) Lu
j \\ \ I // 62pJ1 //�� J/ I // l l I (�� \I \\\♦ \ \) j j �I \\ \moo / - �_// ' - -// \�too ,s?o / �\ \�� I > { I wo N W Lu °c
Lo
af
DRAINAGE FLOW DIRECTION w Lu
630- \/ J PROPERTY BOUNDARY ~
EXISTING CONTOUR - - 600
;;0- _
IMPERVIOUS AREA �j/�j�j/�j/�jj/�/�jj/�j/�jj�jji, u
00 CULVERT
m STORMWATER DRAIN SYSTEM
�) I- `\ I /' l / ( \ \\ \ 1 ♦ l - ` _ \ // \ - // W/ FLOW DIRECTION
DRAINAGE CHANNEL/WATER BODY
-.._.._.._........
0 300 600 900
1 1
/ / / I / I / \ I \ \ \ \ \ \ / - - \ - - - - - - - - - -) GRAPHIC SCALE (IN FEET) PROJECT NUMBER
REFERENCES: 22350047 PH.01
CAD PLANIMETRIC DATA PROVIDED BY MECKLENBURG COUNTY GIS DEPARTMENT. DRAWING NUMBER
BUILDING AND STORM SEWER INFORMATION PROVIDED BY SIEMENS POWER GENERATION, INC.
L_

/ / \ INDUSTRIAL ACTIVITIES
yll
4 \ \\ O ISA MAINTENANCE STORAGE BUILDING
INSULATION MATERIAL LABORATORY
3O OFFICE BUILDING
SAMPLE POINT /
* 1
f o NO. 011 / I \ \ 4O TOOL STORAGE-GENERATOR DEPARTMENT _
/ �� x� AREA — — J AREA � — I 57
NORTHEAST \� I O x WET POND \ ` � 6 WATER TANK
"Ell \ x X \ � DUKE POWER SUBSTATION 2016 AYRSLEY TOWN BLVD
AREA / 1 \ I SUITE 2-A
x a 8 ..Hvv AREA I II 10 / ` CHARLOTTE,NC 28273
I � x � � � O HAZARDOUS WASTE STORAGE AREA [phone]
x/ X 49 vvI,l AND � � I l / —
/ / 7 / x/ / O 9 "J„ I 16 O MANUFACTURING BUILDING ENGINEERING FIRM
10 18 I AREA r' \ O LICENSE NUMBER:F-0176
55 "All � � ! I � / � 10 CLARIFIER
v *� SAMPLE POINT — 98 r \ \ '75 59 = it 60 75 I \ 12 L.P. GAS STORAGE (INDUSTRIAL VEHICLE)AREA
I Ij
NO. 003 1 X 62 I O_ _ AREA �x J
/ � 60 "L" 15 TRANSFORMER INCLOSURE
00
_ O
CLEARWELL PUMPHOUSE
37 I 97 ❑-� 17 MISC. GAS CYLINDER STORAGE AREA
59 60
T3 T12 T11 1'. 18 FLAMMABLE STORAGE BUILDING
OI
183 �I! 60 I' J 0
OIL STORAGE BUILDING
I a
x❑ I � I 37 DUST COLLECTOR (GLASS BEAD)
WAREHOUSE BUILDING LLI
/ / I 75
1 I 45 CHIP CONVEYOR DISCHARGE WITH CANOPY
67 70 I I L O
� O I
63 I 49 DRUM/FLAMMABLE MAT. STORAGE FACILITY
Jz AREA — 41 YI ` \
"R" — O — - \ PAINTING FACILITIES uj
/ I � _ GENERATOR AND STEAM 50 _
mr � 1 SERVICE CENTER \ \ 55 USED OIL STORAGE BUILDING
I I x \ �T171 83 � \ l O
GN/SU — \ \ GRASSED/LANDSCAPED AREA-CHEMICALLY
x \ TREATED/FERTILIZED
AREA �' I 57 FUEL PUMPING STATION NO. 6 FUEL OIL
/ I \ 107 "N"
\ O
T13 I \ 58 MAINTENANCE STORAGE
110
PRODUCT STORAGE
59 45
J / / \ / I 60
1 I I \ O SHIPPING MATERIAL
ROOFED CHIP STORAGE DRAINAGE
EMPTY DRUM STORAGE/MOBILE TANK
I � AREA J O
I I� "C" / O I \ 63 ARGON AND ARGON STORAGE TANKS
\ Q
J 64 C L3 CD C3
GENERATOR BALANCE BUNKER
06 AREA 65 RECEIVING AREA
03 T7 \ \ \ 66 WELL WATER SYSTEM (ABANDONED)
/ AREA J4 T5 T61 AREA
I 0 vlKll 35 — � ' "Ovv 74 56 \ 67 HELIUM HORIZONTAL STORAGE TANKS
f' O GAS TURBINE FACILITY
/ O 0 1
/ — — - 56 SPOIL AREA
/ GT
❑ ❑ ❑ ® 69 GRAVEL SURFFACE (IMPERVIOUS)
\ h
93
I l
SAMPLE POINT NO. 009 1
I WEST WET (ABANDONED IN 2010; 105 ` / 61 74 37 70 SHIPPING AREA a o w
POND 0
HISTORICAL REFERENCE 86 x —° 50 56 ` 71 NITROGEN HORIZONTAL STORAGE TANKS Y Y Q
ONLY) 91 0 72 PAINT AND CLEANING ROOMS =
\ 108 1021 4 U
— —/ 73 WASTE MATERIAL-NON PRODUCT
}
94 AREA� 74 SOLID WASTE DUMPSTER m
\ \ I I 1 75 MANUFACTURING SUPPORT PRODUCT
109 p l I I I
/ I I \ a O 76 PROPANE VAPORIZING SHED
I I I I 78 HEAT TREAT BUILDING
SAMPLE POINT
NO. 012 — \ SAMPL POINT / / I ( \\ C I 80 NITROGEN STORAGE TANK z
��.'0'r3 o �
\ I I 81 GLOBAL VPI
� J
\ \�I— ✓ \ �/ / - �� I 1 / 82 MEGA TRAILER/OFFICE N w
/ \
xI
EMERGENCY GENERATOR CO o m
AREA I
I62 12 "p" \ \ \ 86 DEPRESSED LOADING DOCK > a
I IIo
WET POND I I U v 87 LOOP HEATING BUILDING w Q
O
17 / AREA T15 gg SHIPPING PREP
11011 0 o w
' I / 95 EXCITER BALANCE A N Q
O N
A
GENERATOR STORAGE
73 \ 92 VACUUM SPIN BUNKER N z
65 89 O
73 � O
87 J I VALVE BLAST DUST COLLECTOR
37 I
\_ M2 BELT SANDER DUST COLLECTOR
I �� l E2 73 1 I i
`\ 66 1\ M' 15 - ��y \ -- 95 SPENCER DUST COLLECTOR SYSTEM EXHAUST
\ 96 HI-VAC DUST COLLECTOR SYSTEM EXHAUST Q�
AREA / SAMPLE POINT
1IM2.1 NO. 006 v / \ 97 1,500-GALLON SOAP SOLUTION TANK
/ / l SAMPLE POINT \ \ . AREA
/ \ NO. 002 1 66 \ I "M1" 59
\ \ ( O � \ ` gg NEW PRODUCT DRUM STORAGE BUILDING �
COOLING TOWER
101 GVPI EMERGENCY GENERATOR WITH FUEL oC I T l SOUTHEAST J I r —� O w
IN��010 WET POND /i/ / j TANK z Q
\ / L— z
\ --� / \ 1 x O O J \ // I / 1 2 EMERGENCY RESPONSE TEAM BUILDING U J
�/ I 68 I \ w O
U off
VALVE COMPONENTS � U
II I I I ` ' I �\ / / / ( 105 NICKEL-PLATING LINE Cn U N
1 \ ` \ I I / �+ + I J \ (� ROTOR ASSEMBLY WASH BOOTH Q �= O O
N / L_ _ _ _ _ _ _ _ � J Q
\ \ / z
SAMPLE PO� 107 LARGE PARTS WAREHOUSE WASH BOOTH w w
o \ ` �j J I I \ l i \ / \ / .\ x I I I NO. 00 / ( 108 GT COOLING TOWER Z N 0 O
/ O w
\+ \ 58 \. �\ 109 TBC DUST COLLECTOR SYSTEM EXHAUST w m
\ / / / \ \ \ / 58 \ I I I O \ I l N of
Q \� �j / \ / \\ I 69 x \ CHARLOTTE TURBINE 110 CLEMCO DUST COLLECTOR EXHAUST
� / y� I I
/ P I \ GENERATOR / Z w
�j I I 1 — / \ I I i LEGEND
N \� _� .� , •' \ �`� SAMPLE P INT SERVICE CENTER / PROPERTY BOUNDARY OJ w
�— /� I J L� 1 — / r - / 1 C�\ \ I I N . oos SPRAY POND — Q Q
i Q - Y I APPROXIMATE SAMPLE POINT LOCATION U
.21
STORMWATER DRAIN SYSTEM
CD BULK OIL STORAGE ACTIVITIES BULK OIL STORAGE ACTIVITIES BULK OIL STORAGE ACTIVITIES BULK OIL STORAGE ACTIVITIES W/ FLOW DIRECTION Q'
AREA DESCRIPTION ID
Ln
AREA DESCRIPTION ID — AREA DESCRIPTION ID AREA DESCRIPTION ID
m — — — DRAINAGE FLOW DIRECTION
E. 55-GALLON HAZARDOUS WASTE DRUM STORAGE AREA
v A. ONE (1)-3,500 GALLON NO. 2 AST (TANK T3) T3 L. USED OIL/WATER STORAGE TANK T11 R. EMERGENCY GENERATOR DIESEL FUEL STORAGE TANK T17
° F. USED OIL STORAGE TANK ONE (1) - 5,000 GALLON AST (TANK T11) O ONE (1)- 1,325 GALLON AST (TANK T17) _ . . . . .
ONE (1) - 500 GALLON AST (TANK T9) Tg INDUSTRIAL ACTIVITY LOCATION
REFERENCES: B. DTE-25 LUBRICATION OIL TANK T4 KEROSENE T12 f�
o ONE (1) - 7,500 GALLON AST (TANK T4) G. USED OIL STORAGE TANK ONE (1)- 500 GALLON AST (TANK T12) DRAINAGE CHANNEL/WATER BODY
BUILDING AND STORM SEWER INFORMATION PROVIDED BY SIEMENS ONE (1) - 3,500 GALLON AST IN BLDG. W/SUMP (TANK T10) T10
POWER GENERATION, INC. DTE-LIGHT LUBRICATION OIL TANK T5 M. 10MVA SEASONING BUNKER TRANSFORMER
ONE (1) - 7,500 GALLON AST (TANK T5) H. NEW PRODUCT DRUM STORAGE BUILDING r I
N. CHIP CONVEYOR COOLANT RECOVERY TANK BULK OIL STORAGE ACTIVITY AREA
VACTRA-2 LUBRICATION OIL TANK T6 ONE (1)- 1,000 GALLON AST (TANK 13) T13
z NOTES: ONE (1) - 7,500 GALLON AST (TANK T6) O I. #1 HAZARDOUS MATERIALS STORAGE BUILDING PROJECT NUMBER
APPROXIMATE LOCATIONS OF STORM SEWERS AND BUILDING SHOWN. J. #2 HAZARDOUS MATERIALS STORAGE BUILDING O. [TANK T14 REMOVED] CULVERT
THIS PLAN IS NOT TO BE USED FOR CONSTRUCTION PURPOSES.
C. EMERGENCY GENERATOR DIESEL FUEL STORAGE TANK T7 22350047 PH.01
ONE (1) - 850 GALLON AST (TANK T7) K. MISCELLANEOUS OIL STORAGE O DRAWING NUMBER
55-GALLON DRUMS P. EMERGENCY GENERATOR DIESEL FUEL STORAGE TANK T15 0 100 200 300
ONE (1)- 1,000 GALLON AST (TANK T15)
Q. NEW OFFICE BUILDING TRANSFORMER T16 GRAPHIC SCALE (IN FEET) 2 2
349 GALLONS OIL STORAGE (TANK T16)

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
SECTIONDRAINAGE ,
a� 3.1 Have you attached a site drainage map containing all required information to this application?(See instructions for
°r cc C specific guidance.)
N .R �
0 cc
0 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
OF-010 5.2 acres 16.8 acres
specify units specify units
OF-011 4.2 acres 7.8 acres
specify units specify units
OF-012 16.8 acres 22.6 acres
specify units specify units
OF-013 8.0 acres 11.8 acres
specify units specify units
OF-014 0.1 acres 2.9 acres
specify units specify units
OF-015 0.2 acres 3.1 acres
4.2 Provide a narrative description of the facility's significant material in the space below.(See instructions for content
requirements.)
See attachment
N
N
7
O
C
R
7
O
a
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)
OF-010 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-011 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-012 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-013 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-014 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-015 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
EPA Form 3510-2F(Revised 3-19) Page 2

MATERIAL INVENTORY
Siemens Energy,Inc.,Turbine-Generator Plant
Charlotte,North Carolina
Quantity
(all units Ibs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Abrasives- Plant Varies 0 <1,000 Outside Storage of Material X
Mineral Sands Prepare for Disposal
#2 Fuel Oil AST Fuel Oil Storage Area 16,000 gal 0 <5,000 gal Outside AST with Secondary X
Containment/Loading and Unloading
Acetylene Plant 20,000 cf 0 2,500 cf None X
Acids Plant 18,000 0 <5,0000 gal Lab Residue-Empty Containers X
Adhesives Plant Varies 0 <500 gal None X
Alcohols Plant 5,000 0 <1,000 gal Residue-Empty Drum Storage and Plastic X
Containers
Aluminum Oxide Rotor Blasting/Plant 21,000 0 <20,000 Overflow from Storage Containers X
Ambitrol Coolant/Plant Varies 0 <1,000 None X
Ammonia Plant Varies 0 <800 gal None X
Argon Manufacturing Process/Argon Varies 0 1,500 gal None X
Storage Tank storage tank
Bleach Plant <20,000 0 <5,000 None—used for bloodborne pathogen X
cleanup by ERT
1

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Bronze Bearings Plant Varies 0 Varies None X
Calcium Dispersing Agent Varies 0 <500 None X
Hydroxide Plant
Caustic Plant Varies 0 <100 None X
(Ammonia)
Castic Soda Plant <20,000 0 <5,000 Residue-Empty Drum Storage X
Cement Coatings Plant Varies 0 <200 Construction mixer cleanout X
CFC-134A Refrigerant/Plant <15,000# 0 <15,000 None X
Chemical Test Power House/Corrosion Varies 0 Varies Small volume containers in Power House X
Reagents for Control chemical cabinet
Water Treatment
Chromium Plant Varies 0 Varies Outside Storage of Turbine Generator Parts X
Products and Forgings
Copper Wire Plant Varies 0 <5,000 Outside Storage Runoff X
Corrosion Plant Varies 0 <1,000 gal None X
Inhibitors
Cutting Fluids Plant Varies 0 <7,000 gal Leakage from metal turning(chip)storage X
bins and empty drums
Daconil 2787 Fungicide Varies 0 0 Applied Quarterly by Contractor X
Disinfectants Plant Varies 0 <100 None X
2

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Electrodes Manufacturing Process/Plant Varies 0 <10,000 None X
Electroplating Plant Varies 0 <1,000 gal None X
Empty Drums Empty Drum Storage Varies 0 <100 Runoff from Empty Drums X
Equipment Maintenance&Product Varies 0 Varies Outside Equipment Runoff X
Storage Storage Areas
Etching Marker Plant Varies 0 Varies None X
Tint
Ethylene Glycol Coolant/Plant Varies 0 <1,000 gal Residue—Empty Drum Storage X
Ethoxylated Rotor Assembly and Large Varies 0 <500 gal Overflow or pipe rupture X
amines&orange Parts Wash Booths
terpenes
Fertilizer(16-8-8) Lawn Maintenance Varies 0 0 Applied Bi-Annually by Contractor X
Fertilizer(18-8-9) Lawn Maintenance Varies 0 0 Applied Bi-Annually by Contractor X
Fibrous Glass Plant Varies 0 <5,000 None X
Insulation
Flux-Brazing& Plant Varies 0 <5,000 None X
Soldering
Glass Bead Rotor Blasting/Plant 272,000 0 <50,000 Overflow from Storage Containers X
Glutaraldehyde Microbiocide/ Varies 0 <500 None X
Process Water
Grout Plant Varies 0 <1,000 Construction mixer cleanout X
3

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Helium Manufacturing process- Varies 0 150,000 None X
helium storage tanks cu. ft. gas
Industrial Plant <12,000 0 <5,000 gal Residue—Empty Drum Storage and Small X
Cleaners Volume Containers
Insecticides Plant and Property Varies 0 <100 Application As Required X
INSTAPAK Shipping/Plant Varies 0 <500 gal Part of wood boxes and packaging stored X
Packaging Foams outside or in recycle pile
Components
A&B
Iron and Plant Varies 0 <1,000 None X
Antimony Powder
Kerosene AST North of Plant 800 gal 0 <500 gal Outside AST with Secondary X
Containment/Loading and Unloading
Laminated Glass Plant <1,000 0 <1,000 None X
Cloth Sheets
Linseed Oil Plant <l 00 0 <200 gal None X
Live Non- Surfactants 500 0 <1,000 None X
Pathogenic
Organisms
Liquid Sevin Japanese Beetle Varies 0 0 Applied Bi-Annually by Contractor X
Lubricating Oils Drum&Flammable 51,000 gal 0 <23,000 gal Loading and Unloading X
Mat'1/Storage Bldg. &Bulk
Oil AST
4

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Molybdenum Plant Varies 0 Varies Outside Storage of Turbine Generator Parts X
(Products, and Forgings
Electrodes,Wire
Forging)
Nickel(Rings, Plant Varies 0 Varies Outside Storage of Turbine Generator Parts X
Plates,Forgings) and Forgings
Nitrogen Plant Varies 0 <5,000 cf None X
Non Potable Clarifier Tank Varies 0 <300,000 gal None X
Water
Oil Additives Plant Varies 0 <500 gal None X
Oxygen Manufacturing Varies 0 1,500 gal None X
Process/Oxygen Storage Tank
Paints,Stains and Plant 5,000 0 <3,000 None X
Primers
Penetrants Plant Varies 0 <1,000 gal None X
Plant Waste Dumpsters&Hazardous Mat'l Varies 0 <20,000 Overflow from Dumpsters or Accumulation X
Accumulation Area in Secondary Containment
Photocopy Toner Radiographic Lab Varies 0 <1,000 None
Photographic Radiographic Lab Varies 0 <1,000 gal None X
Development
Chemicals
Propane Emergency Fuel/Propane Varies 0 19,000 gal None X
Storage Tank
5

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Propylene Glycol Plant Varies 0 Varies None X
Ether
Propylene Glycol Plant Varies 0 Varies None X
Monomethyl
Ether
Polysiloxan Plant <500 0 <500 None X
(Silicone Rubber)
Raw Copper Plant Varies 0 <5,000 Outside Storage Runoff X
Raw Steel Raw Material/Plant Varies 0 Varies Outside Storage Runoff X
Reducing Agents Plant Varies 0 Varies None X
Refractory Fiber Plant <1,000 0 <500 None X
Resin Epoxy Plant Varies 0 <5,000 Outside disposal in regulated dumpster X
Glass and Teflon
Resin Film Tapes
Round-Up Weed Control Varies 0 0 Applied Every 3 Weeks by Contractor X
Rust Inhibitors Plant <2,000 0 <1,000 gal None X
Sand Plant Varies 0 <5,000 Outside Storage of Material X
Sealants Plant Varies 0 <500 gal None X
Sheet Metal Manufacturing Process/Plant Varies 0 Varies Outside Storage Runoff X
Shellac Plant 200 0 <200 gal None X
6

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Shipping Timbers Shipping Material Storage Varies 0 Varies Outside storage of material(dunnage) X
North of Plant
Silastic Sealant Plant <500 0 <500 None
Silica Gel Plant <500 0 <100 None X
Silicon Potting Plant <500 0 <500 None
Compound
Silicone/Putties Plant Varies 0 <500 None X
Solder Plant Varies 0 <1,000 Outside Storage of Turbine Generator Parts X
and Forgings
Solvents and Plant 4,000 0 <1,000 gal None X
Thinners
Steel Pipe Plant Varies 0 Varies Outside Storage Runoff X
Steel Shot Rotor Blasting/Plant Varies 0 <5,000 Overflow at Collection Area X
Steel Wire Plant Varies 0 Varies Outside Storage Runoff X
Surflan A.S. Weed Control Varies 0 0 Applied Annually by Contractor X
Talc Powder and Plant 0 0 <2,000 Outside Storage/Unloading(not currently X
Diatomaceous used on site)
Earth
Test Solutions Radiographic Lab Varies 0 <1,000 None X
Trimec 992 Weed Control Varies 0 0 Applied Annually by Contractor X
Trisodium Plant Varies 0 <100 None
Phosphate
7

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Varnish Plant 1,500 0 <1,000 None X
Used Oils Used Oil Storage Bldg.or Varies 0 <8,000 gal Loading and Unloading, X
Used Oil AST Transportation on-site
8

Quantitative Stormwater Results Summary:2017 through 2022
Siemens Energy,Inc.-Stormwater Compliance _
NPDES Permit No.NCSOOOO21 I 1
SWE Project No.219282
HEM
Sample Date Rainfall Location ID including Oil TSS Naphthalene Total Nitrogen
&Grease
Standard Units (mg/L) (mg/L) (pg/L) (mg/L)
Benchmark Values» 6-9 30 100 30 30
OF-002 7.69 ND ND ND 1.3
OF-003 7.63 ND ND ND 1.1
OF-005 7.15 ND 14 ND 2.1
2.04 inches in 13.5 OF-006 8.41 ND 230 ND 3.7
10/23/2017 OF-007 8.12 ND 95 NO 0.63
hours OF-010 7.66 ND 12.0 ND 0.99
OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 7.61 ND 1 27 1 ND 2.1
OF-013 No Measurable Discharge at Time of Sampling Event
OF-002 7.24 ND ND ND 0.79
OF-003 7.41 ND 3.0 ND 0.82
OF-005 6.98 ND 6.9 NO 0.53
OF-006 8.02 ND ND ND 0.471
0.71 inches in 13.5 OF-007 7.41 ND ND ND 0.441
12/17/2019 hours OF-010 7.00 ND 9.4 ND 0.73
OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 7.37 ND 2.7 ND 0.59
OF-013 7.17 NO ND NO 0.291
OF-014 No Measurable Discharge at Time of Sampling Event
OF-015 7.10 ND 22 ND 1.5
OF-002 7.18 ND 3 ND 0.62
OF-003 7.11 ND 2.5 ND 0.89
OF-005 6.79 ND ND NO 0.68
OF-006 7.04 3.491 71 ND 1.00
OF-007 No Measurable Discharge at Time of Sampling Event
4/30/2020 2.96 inches in 36 hours OF-010 6.91 ND 1 3.8 1 ND 0.56
OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 7.12 ND 3.7 ND 0.48
OF-013 7.28 ND 3.8 ND 0.291
OF-014 No Measurable Discharge at Time of Sampling Event
OF-015 7.07 3.171 7.1 ND 0.81
OF-002 7.43 NO ND NO 1.10
OF-003 No Measurable Discharge at Time of Sampling Event
OF-005 7.05 ND 21 NO 3.9
OF-006 8.02 ND ND ND 7.3
OF-007 No Measurable Discharge at Time of Sampling Event
7/8/2021 0.38 inches in 24 hours OF-010 7.02 ND 1 25 1 ND 1.7
OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 7.41 ND 16 ND 0.86
OF-013 7.53 ND 10 ND 1.1
OF-014 No Measurable Discharge at Time of Sampling Event
OF-015 7.31 ND 5.7 ND 0.74
OF-002 7.32 4.921 5.1 ND 0.74
OF-003 7.05 2.731 5.2 ND 1.50
OF-005 7.10 NO 4.7 ND 0.56
OF-006 No Measurable Discharge at Time of Sampling Event
OF-007 No Measurable Discharge at Time of Sampling Event
3/9/2022 2.24 inches in 24 hours OF-010 6.99 ND 1 3.6 1 ND 0.65
OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 7.43 ND 3.6 ND 0.88
OF-013 7.48 3.85 J 4.3 ND 0.52
OF-014 No Measurable Discharge at Time of Sampling Event
OF-015 7.37 3.911 16 ND 0.73
OF-002 7.41 ND ND ND 0.61
OF-003 7.71 ND ND ND 1.10
OF-005 7.35 NO 4.0 NO 0.73
OF-006 No Measurable Discharge at Time of Sampling Event
OF-007 No Measurable Discharge at Time of Sampling Event
12/6/2022 0.26 inches in 24 hours OF-010 8.00 ND 1 5.4 1 ND 0.82
OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 7.26 ND 8.5 ND 0.46
OF-013 7.26 ND 3.3 ND 2.00
OF-014 No Measurable Discharge at Time of Sampling Event
OF-015 7.39 ND 4.3 ND 0.71
Notes:
HEM=n-hexane extractable material
TSS=total suspended solids
NO=Non-Detect:concentration detected was below the laboratory Method Detection Limit(MDL)
1=the reported analyte concentration is between the laboratory MDL and the Method Reporting Limit(MRL)
mg/L=milligrams per liter
pg/L=micrograms per liter
0=Concentration is above respective benchmark value

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE 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?
0
a 0 Yes ❑ No 4 SKIP to Section 8.
0
7.19 List the pollutants below,including TCDD if applicable.
E
O
1.Copper,total 4. 7.
ar
rn
2• Nickel,total 5. 8•
c.�
ti
3.Antimony,total 6. 9•
SECTION • •GICAL TOXICITY TESTING DATA - 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
❑ Yes 0 No 4 SKIP to Section 9.
V5
8.2 Identify the tests and their purposes below.
Test(s) Purpose of Test Submitted to NPDESs) Date Submitted
x Permitting Authority?
0
~ ❑ Yes ❑ No
R
V
M
0 ❑ Yes ❑ No
0
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
0
E
L
0
H
y Laboratory address
.y
_T
R
C
Q
V
fC
L
o Phone number
U
Pollutant(s)analyzed
EPA Form 3510-21'(Revised 3-19) Page 5

Young, Brianna A
From: Young, Brianna A
Sent: Thursday,July 13, 2023 2:17 PM
To: [e-mail]
Cc: [e-mail]; [e-mail]
Subject: Renewal application for NCS000021
Importance: High
Good afternoon,
Siemens Energy, Inc. has stormwater permit NCS000021.This permit expired on July 31, 2022 and a renewal application
was due by February 1, 2022. To date,the Stormwater Permitting Program has not received a renewal application. In
order to keep this permit active, submit a renewal application by August 16,2023. If an application is not received by
this date,Siemens Energy, Inc. may be subject to enforcement action(s).
The appropriate permitting forms can be found on our website here.
In addition to submitting a renewal application, please enter your stormwater permit number into the Stormwater
Permit Summary Report and you will see a form that includes the address of the facility, contact information for the
permit, and the regulated stormwater outfall(s)for the facility. Please review the facility information to make sure it is
correct. Information can be updated using the links provided below, where applicable:
1. Facility/Company name or ownership: Name/Ownership Change Form
2. Owner Affiliation (Legally responsible person; i.e., someone with the company who is designated to represent
the company per signatory requirements or another authorized representative): Permit Contact Update Request
Form
3. Delegation of Signature Authority(DOSA): Permit Contact Update Request Form
4. Billing contact: Permit Contact Update Request Form
5. Permit contact: Permit Contact Update Request Form
6. Facility contact: Permit Contact Update Request Form
7. Facility address only: Email Bethany Georgoulias
8. Stormwater outfall information: Email Bethany Georgoulias
9. Visit the eDMR Six Steps website and complete Steps 1 and 2.
10. Pay outstanding permit fees: Stormwater ePayment website
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
**DEQ is updating its email addresses to @deq.nc.gov in phases from May 1st to June 9th. Employee email addresses may look
different, but email performance will not be impacted.
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
1

Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
2

9/7/23, 1:54 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
Siemens Energy, Inc.
Prev Legal Name
Siemens Power Generation, Inc.
Prev Legal Name
Siemens Westinghouse Power Corporation
Information
Sosld: 0469300
Status: Current-Active O
Date Formed: 8/31/1998
Citizenship: Foreign
State of Incorporation: DE
Fiscal Month: September
Annual Report Due Date: January 15th
Currentgnnual Report Status:
Registered Agent: CT Corporation System
Addresses
https://www.sosnc.gov/online services/search/Business_Registration_Results 1/2

9/7/23, 1:54 PM North Carolina Secretary of State Search Results
Reg Office Reg Mailing
160 Mine Lake Ct Ste 200 160 Mine Lake Ct Ste 200
Raleigh, NC 27615-6417 Raleigh, NC 27615-6417
Mailing Principal Office
3850 QUADRANGLE BLVD US TAX DEPT, MS AFS-466 4400 Alafaya Trail
ORLANDO, FL 32817-8368 Orlando, FL 32826-2301
Off icers
Assistant Secretary Vice President Secretary Executive Director
BRIAN BLACHER FLORENCIA GARRIDO DENISE HANSEN DENISE HANSEN
4400 ALAFAYA TRAIL 4400 ALAFAYA TRAIL 15375 Memorial Drive 15375 Memorial Drive
ORLANDO FL 32826 ORLANDO FL 32826 HOUSTON TX 77079 HOUSTON TX 77079
General Counsel Vice President Chairman Treasurer
DENISE HANSEN DENISE HANSEN TIM HOLT SCOTT LUZZI
15375 Memorial Drive 15375 Memorial Drive 4400 Alafaya Trail 4400 ALAFAYA TRAIL
HOUSTON TX 77079 HOUSTON TX 77079 Orlando FL 32826 ORLANDO FL 32826
Vice President President Executive Director
SCOTT LUZZI RICHARD VOORBERG RICHARD VOORBERG
4400 ALAFAYA TRAIL 4400 ALAFAYA TRAIL 4400 N ALAFAYA TRAIL
ORLANDO FL 32826 ORLANDO FL 32826 ORLANDO FL 32826
Stock
https://www.sosnc.gov/online services/search/Business_Registration_Results 2/2

Young, Brianna A
From: Young, Brianna A
Sent: Wednesday,August 16, 2023 1:53 PM
To: Roof Jr, Paul
Cc: Miller, Byron; Crowther, Damon; Pope, Richard
Subject: NPDES Stormwater Permit NCS000021
Good afternoon,
The Division of Energy, Mineral, and Land Resources (DEMLR) Stormwater Permitting Program
acknowledges receipt of your renewal application for coverage under NPDES Permit Number NCS000021.
Please continue to comply with all conditions and monitoring requirements in your current NPDES stormwater
permit. As long as you have submitted a complete renewal request package and maintain compliance with those
permit conditions, stormwater discharges from this facility are authorized by that permit until the Division
issues a renewal permit or notifies you of an alternative action. Please let me know if you have any questions in
the interim.
Thank you,
Brianna Young, MS(she/her)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)PLEASE NOTE NEW EMAIL ADDRESS
**DEQ is updating its email addresses to @deq.nc.gov in phases from May 1st to June 9th. Employee email addresses may look
different, but email performance will not be impacted.
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
Email correspondence to and from this address is subject to the North Carolina
Public Records Law and may be disclosed to third parties.
The Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Please
check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email.
1

i
SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, 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.
S. 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)
REG
G����.5tam}Wa''�r F�ogCam
D

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
. 2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, lab results, date sampled, and storm event data.
AM 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.
fM 4. A sununary 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.
jt�'/111 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)

MATERIAL INVENTORY
Siemens Energy,Inc.,Turbine-Generator Plant
Charlotte,North Carolina
Quantity Likelihood of contact with Past
Material Purpose/Location (all units lbs unless noted)
stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Abrasives- Plant Varies 0 <1,000 Outside Storage of Material X
Mineral Sands Prepare for Disposal
#2 Fuel Oil AST Fuel Oil Storage Area 16,000 gal 0 <5,000 gal Outside AST with Secondary X
Containment/Loading and Unloading
Acetylene Plant 20,000 cf 0 2,500 cf None X
Acids Plant 18,000 0 <5,0000 gal Lab Residue-Empty Containers X
Adhesives Plant Varies 0 <500 gal None X
Alcohols Plant 5,000 0 <1,000 gal Residue-Empty Drum Storage and Plastic X
Containers
Aluminum Oxide Rotor Blasting/Plant 21,000 0 <20,000 Overflow from Storage Containers X
Ambitrol Coolant/Plant Varies 0 <1,000 None X
Ammonia Plant Varies 0 <800 gal None X
Argon Manufacturing Process/Argon Varies 0 1,500 gal None X
Storage Tank storage tank
Bleach Plant <20,000 0 <5,000 None—used for bloodborne pathogen X
cleanup by ERT
I

Quantity
(all units Ibs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Bronze Bearings Plant Varies 0 Varies None X
Calcium Dispersing Agent Varies 0 <500 None X
Hydroxide Plant
Caustic Plant Varies 0 <100 None X
(Ammonia)
Castic Soda Plant <20,000 0 <5,000 Residue-Empty Drum Storage X
Cement Coatings Plant Varies 0 <200 Construction mixer cleanout X
CFC-134A Ref igerant/Plant <15,000# 0 <15,000 None X
Chemical Test Power House/Corrosion Varies 0 Varies Small volume containers in Power House X
Reagents for Control chemical cabinet
Water Treatment
Chromium Plant Varies 0 Varies Outside Storage of Turbine Generator Parts X
Products and Forgings
Copper Wire Plant Varies 0 <5,000 Outside Storage Runoff X
Corrosion Plant Varies 0 <1,000 gal None X
Inhibitors
Cutting Fluids Plant Varies 0 <7,000 gal Leakage from metal turning(chip)storage X
bins and empty drums
Daconil 2787 Fungicide Varies 0 0 Applied Quarterly by Contractor X
Disinfectants Plant Varies 0 <100 None X
2

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Electrodes Manufacturing Process/Plant Varies 0 <10,000 None X
Electroplating Plant Varies 0 <1,000 gal None X
Empty Drums Empty Drum Storage Varies 0 <100 Runoff from Empty Drums X
Equipment Maintenance&Product Varies 0 Varies Outside Equipment Runoff X
Storage Storage Areas
Etching Marker Plant Varies 0 Varies None X
Tint
Ethylene Glycol Coolant/Plant Varies 0 <1,000 gal Residue—Empty Drum Storage X
Ethoxylated Rotor Assembly and Large Varies 0 <500 gal Overflow or pipe rupture X
amines&orange Parts Wash Booths
terpenes
Fertilizer(16-8-8) Lawn Maintenance Varies 0 0 Applied Bi-Annually by Contractor X
Fertilizer(18-8-9) Lawn Maintenance Varies 0 0 Applied Bi-Annually by Contractor X
Fibrous Glass Plant Varies 0 <5,000 None X
Insulation
Flux-Brazing& Plant Varies 0 <5,000 None X
Soldering
Glass Bead Rotor Blasting/Plant 272,000 0 <50,000 Overflow from Storage Containers X
Glutaraldehyde Microbiocide/ Varies 0 <500 None X
Process Water
Grout Plant Varies 0 <1,000 Construction mixer cleanout X
3

Quantity
(all units Ibs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Helium Manufacturing process- Varies 0 150,000 None X
helium storage tanks cu.ft.gas
Industrial Plant <12,000 0 <5,000 gal Residue—Empty Drum Storage and Small X
Cleaners Volume Containers
Insecticides Plant and Property Varies 0 <100 Application As Required X
INSTAPAK Shipping/Plant Varies 0 <500 gal Part of wood boxes and packaging stored X
Packaging Foams outside or in recycle pile
Components
A&B
Iron and Plant Varies 0 <1,000 None X
Antimony Powder
Kerosene AST North of Plant 800 gal 0 <500 gal Outside AST with Secondary X
Containment/Loading and Unloading
Laminated Glass Plant <1,000 0 <1,000 None X
Cloth Sheets
Linseed Oil Plant <100 0 <200 gal None X
Live Non- Surfactants 500 0 <1,000 None X
Pathogenic
Organisms
Liquid Sevin Japanese Beetle Varies 0 0 Applied Bi-Annually by Contractor X
Lubricating Oils Drum&Flammable 51,000 gal 0 <23,000 gal Loading and Unloading X
Mat'UStorage Bldg.&Bulk
Oil AST
4

Quantity
(all units Ibs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Molybdenum Plant Varies 0 Varies Outside Storage of Turbine Generator Parts X
(Products, and Forgings
Electrodes,Wire
Forging)
Nickel(Rings, Plant Varies 0 Varies Outside Storage of Turbine Generator Parts X
Plates,Forgings) and Forgings
Nitrogen Plant Varies 0 <5,000 cf None X
Non Potable Clarifier Tank Varies 0 <300,000 gal None X
Water
Oil Additives Plant Varies 0 <500 gal None X
Oxygen Manufacturing Varies 0 1,500 gal None X
Process/Oxygen Storage Tank
Paints,Stains and Plant 5,000 0 <3,000 None X
Primers
Penetrants Plant Varies 0 <1,000 gal None X
Plant Waste Dumpsters&Hazardous Mat'1 Varies 0 <20,000 Overflow from Dumpsters or Accumulation X
Accumulation Area in Secondary Containment
Photocopy Toner Radiographic Lab Varies 0 <1,000 None
Photographic Radiographic Lab Varies 0 <1,000 gal None X
Development
Chemicals
Propane Emergency Fuel/Propane Varies 0 19,000 gal None X
Storage Tank
5

Quantity
(all units Ibs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Propylene Glycol Plant Varies 0 Varies None X
Ether
Propylene Glycol Plant Varies 0 Varies None X
Monomethyl
Ether
Polysiloxan Plant <500 0 <500 None X
(Silicone Rubber)
Raw Copper Plant Varies 0 <5,000 Outside Storage Runoff X
Raw Steel Raw Material/Plant Varies 0 Varies Outside Storage Runoff X
Reducing Agents Plant Varies 0 Varies None X
Refractory Fiber Plant <1,000 0 <500 None X
Resin Epoxy Plant Varies 0 <5,000 Outside disposal in regulated dumpster X
Glass and Teflon
Resin Film Tapes
Round-Up Weed Control Varies 0 0 Applied Every 3 Weeks by Contractor X
Rust Inhibitors Plant <2,000 0 <1,000 gal None X
Sand Plant Varies 0 <5,000 Outside Storage of Material X
Sealants Plant Varies 0 <500 gal None X
Sheet Metal Manufacturing Process/Plant Varies j 0 j Varies I Outside Storage Runoff X
Shellac Plant 200 0 <200 gal None X
6

Quantity
(all units lbs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Shipping Timbers Shipping Material Storage Varies 0 Varies Outside storage of material(dunnage) X
North of Plant
Silastic Sealant Plant <500 0 <500 None
Silica Gel Plant <500 0 <100 None X
Silicon Potting Plant <500 0 <500 None
Compound
Silicone/Putties Plant Varies 0 <500 None X
Solder Plant Varies 0 <1,000 Outside Storage of Turbine Generator Parts X
and Forgings
Solvents and Plant 4,000 0 <1,000 gal None X
Thinners
Steel Pipe Plant Varies 0 Varies Outside Storage Runoff X
Steel Shot Rotor Blasting/Plant Varies 0 <5,000 Overflow at Collection Area X
Steel Wire Plant Varies 0 Varies Outside Storage Runoff X
Surflan A.S. Weed Control Varies 0 0 Applied Annually by Contractor X
Talc Powder and Plant 0 0 <2,000 Outside Storage/Unloading(not currently X
Diatomaceous used on site)
Earth
Test Solutions Radiographic Lab Varies 0 <1,000 None X
Trimec 992 Weed Control Varies 0 0 Applied Annually by Contractor X
Trisodium Plant Varies 0 <100 None
Phosphate
7

Quantity
(all units Ibs unless noted) Likelihood of contact with Past
Material Purpose/Location stormwater. If yes,describe reason. Significant
Based on 2008 Inventory Spill or Leak
Used Produced Stored Yes No
Varnish Plant 1,500 0 <1,000 None X
Used Oils Used Oil Storage Bldg.or Varies 0 <8,000 gal Loading and Unloading, X
Used Oil AST Transportation on-site
8

Quantitative Stormwater Results Summary:2017 through 2022
Siemens Energy,Inc--Stormwater Compliance
NPDES Permit No.NCS000021 III i
S&ME Project No.219282
Sampla pate R4infntl Location IDtT69
1'ndn ri90ii T55 a
Bendrnrark V�luus» 30 100 30 30
OF-002NO N3 NDOF-003NO ND ND 1.1
OF-005ND 14 ND 2.1
2.04 inches in 13.5 OF-006NO 230 ND 37
1012372017 Fours OF-007N❑ 95 ND 0.63
OF-010 7.66 NO 12.0 ND C.99
OF-011 W Measurable Discharge at rime afsampGny Ewm
OF-012 Z61 NO 1 27 1 ND 2.1
OF-013 No Measurable Discharge at Time of Sampl!N Event
OF-002 724 NO ND NO 0.79
OF-003 7.41 ND 30 NO 0.82
OF-065 6.96 NO 6.9 ND 0.53
OF-006 8.02 NO ND NO 0,47J
0.71 inches in 13.5 OF-007 7.41 NO NO NO 0,44 J
12/17l2019 hours OF-010 7.00 NO 44 NO 033
OF-DI 1 Na Meal-w Discharge or Time a fSampring Event
OF-012 737 NO 1.7 Nb 059
OF 013 7,17 ND it1 N¢ 029)
OF-014 No Measumble Dschvrge at Time of Sampling Event
OF-015 7.50 NO 22 N0 1.5
OF-002 7.18 NO 3 NO 0.52
OF-003 7.11 ND 2,5 ND 0.89
OF-005 6.79 NO ND NO 0.66
OF-006 1.04 3.49J 71 ND 1.00
OF-007 hro Mevrurab Discharge or Time of Sampling freer
47302020 Z96 inches in 36 hours OF-010 6.91 NO 3.8 NO 0.56
OF-M l No Measurable Dischage at Yme of sampling£.ear
OF-012 7.T2 NO 3,7 ND D48
OF-013 12a No 3-6 ND 0291
OF-014 hro Meatpra61e Dischvrge at rime of vamp["'scent
OF-015 7.07 1"J 7.1 ND 0.81
OF-002 7.43 ND ND ND l.10
OF-003 Ma Mevsurable Ouchvrge at Te'me of5amplirg Even)
OF-005 7.05 ND 21 ND 3.9
OF ON8.02 ND NO ND 7.3
OF-007 era Meawrable D-harge at time of Sampling£vent
7/82021 0.38 inches in 24 hours 0E-010 7.02 NO 1 25 1 NO 13
OF-011 No Mmvroble Discharge at Time of Sampling£vent
OF-012 7.41 NO 56 ND 0,86
OF-013 7.53 NO 1e ND 1,1
OF-ot4 Na Mea WOiuhatge m Timm ofSanp&V E-1
OF�OFS 7.31 NO j 5.7 NO 0.14
2F-002 7.32 4,921 5.1 NO 0,74
OF•003 7.05 2.731 52 NO 1.50
OF-005 7.10 NO 4.7 ND 0.56
OF-006 No Measurable Discharge ar Time of Samp&sg Ewar
OF-007 Na MmsnmbM Discharge az rime of Samping Evens
3192022 2.24 inches in 24 hours OF-010 6.99 NO 1 3.6 1 ND 0,65
Of-011 hha Measurable Discharge ae Time of Sompiing E-1
OF-012 7A3 ND 3.6 NO 0.86
OF-013 7.48 3Js51 4-3 NDQ52
OF-014 Al.Measurable Dischvr9r ar Time of Samplutg Evens
OF-015 7.37 3.917 16 NO 0.73
OF-002 7.41 NO ND NO 0.61
OF-003 7.71 NO ND NO 1.10
OF-005 735 ND 44 NO 0.73
OF-036 hb Measurable Diuharge at Time vfSvmp1m_q E,enr
OF-007 Na Measurable Discharge at Time of Sampling E:ent
12/6/2022 0.26 inches in 24 hours OF-010 8.00 ND 1 54 1 N❑ 092
OF-ail Ab Meorumble D-6a.a at Time of Sampling£reaf
OF-012 726 ND I8$ NO 0A6
-OF- 3 726 NI) 33 N❑ 2h0
OF-Qt4 Nv Mea-vhle Discharge of Time of Sampling IF.&
OF-019 739 NO 1 4.3 ND 0.71
Notes
HEM=n-hexane enractabke material
T55=total suspended solids
NO=Non-Doea;concentration detected was"c iv the laboratory Method Detection Limit(MOL)
1=the reported analyze camentration is between the labaratory MDL and the Method Reporting Limit(MRL)
mg/L=milligrams per liter
('V'g'!L=rnicro�grams per liter
L�J=Concentration is above respective benchmark value

Quantitative Stormwater Results Summary.2017 through 2022
Siemens Energy,Inc.-Stormwater Compliance
NPDES Permit No.NC5000021 ' I
SWE Project No.219282
Bauellma*Valun>> 6-9 so 100 1 30 30
OF-002 7.69 NO NO NO 1.3
OF-003 7.63 NO NO NO 1.1
OF-005 7.15 NO 14 NO 21
2.04 inches in 135 OF-006 &41 NO 230 NO 3.7
10123/M17 hours OF-007 8.12 NO 95 N7 063
OF-010 7.66 ND 12A NO 0.99
OF-011 Ak Meowroble Dischorge at Time o(SomAling Eeeor
OF-012 7,61 NO 1 27 1 NO 21
OF-013 Na Measurable Discharge of Time ofSampfing Event
OF-002 724 ND ND NO 0.79
OF-003 741 ND 3,0 NO 0.82
OF-005 6,98 NO 6.9 NO 0.53
OF-oO6 8-02 NO ND NO 0.471
0.71 inches in 13.5 OF-007 7.41 NO NO NO M44 J
12/17/2019 hours OF-010 7.00 NO 9.4 NO 0.73
OF-011 No Meo We 0-horge a1 Time ofSomph q E-i
OF-012 7.37 ND 2.7 NO 0.59
OF-013 7.17 201 NO I NO 0291
OF-014 At Meosumbk 06chorge of Time of Samphrq Ewm
OF-015 7.10 NO 22 NO 1.5
OF-002 7.18 ND NO3 0.62
OF-003 7.11 ND 2.5 NO 0.89
OF-005 6.79 NO NO NO 068
OF-OM 7,04 3A91 71 ND 1,00
OF-007 No Measurable Discharge at Time of Sampling Event
4730/2C20 2-96 inches in 36 hours OF-010 6.91 ND j 3.8 1 NO 0.56
OF-0T l No t-leowrabk Discharge or Time of Sampling E-r
OF-012 7.12 3.7 NO ORS
OF-013 728 ND N❑ Ili ND 0.29J
OF-014 Ab Measurable Discharge m Time of Sampli Event
OF-015 7.07 3.17J 7.1 N❑ OB1
Of-002 7A3 NO NO NO 1.10
Of-003 No Measurable Discharge or Tlam of Sampling Eeenr
OF-0OS 7.05 NO 21 ND 3.9
OF-OW8.02 NO ND ND 7.3
OF-007 No Measurable Dicharge at Time o(Sem,plirrg Evenr
71WO21 0.38 inches in 24 hours OF-010 7.02 NO 25 NO 1.7
OF-011 lvo Measurable Durharge at Timea(Sampling Fvrnt
OF-012 741 NO 16 NO 0.8fi
OF-013 7-53 NO 10 NO 1.1
OF-014 Nn Meorurabk Discharye of lime of"Ong Event
OF-015 7.31 N❑ 57 NOMa5
OF-002 732 431.J SA NOOF-003 7,05 2331 &2 NOOF-005 7,ID NO 4.7 ND
OF-006 No Mean mNe Pa<horge a1 Time of Sampling FW-r
OF-001 Na Meararable Discharge or Time afsompling Fmi
3/9/2022 224 inches in 24 hours OF-010 6,99 NO 3-6 NO 0.65
OF-011 Na Meosurahre pirrharge at 7 me of Sampliry Fwm
OF-012 7.41 ND 3.6 N❑ 088
6F-013 1Aa 3.85J 4-3 ND 0.57
OF-014 No Measurable Duchorge o1 Time of Sampling E-I
OF-015 7.37 3.911 16 NO 0.73
OF-002 741 NO ND NO 0,61
OF-003 7,71 NO NO ND 1,10
OF-005 7.3S NO 4.0 NO 0,73
OF-MG No Measurable Duchorge of Time of Sompl ng£nenl
OF-007 No f4eosurobit Dishorge Tim of of Somptmg Esenr
12/6/2022 0.26 inches in 24 hours OF-OTO 9.00 NO 5.4 NO 0.82
OF-01 I No Meal tde Dicharge or Time of sampling Event
017412 7.26 NO 8.5 NO 0,46
OF-013 726 NO 33 NO 2.00
OF-014 No Me-rubk Discharge at TW"of sampling Ewiv
OF-015 7.39 NO 1 4.3 ND 0,71
Notes:
HEM=n-hexane Wractable material
T55=totai suspended sdids
NO=Non-Detect:coslcentratlon defected was below the laboratory Method Oetecsion Limit(MOL)
J=the reported analyte concentration is between the labwamry VOL and the Method Reporting Limit(MRL)
mg/L=milligrams per liter
Y/1 microgram per liter
=Concentration is above respective benchmark value

Quantitative 5tormwater Results Summary:2017 through 2022 =---
Siemens Energy,Inc.•Stormwater Compliance
NPDES Permit No.NCS000021 t
S&NFE Project No.219252
dp" rr+`t1u rtg l TSS by t n b0r` o trn9en
r
Benchmark VA.-> 6.5 30 100 30 30
OF-W 7.69 NO NO ND 1.3
OF-003 7.63 NO NO NO 1.1
OF-005 7.15 NO 14 NO 21
204 inches in 13-5 0f-006 8.41 ND 230 NO 3.7
10/23/2017 boom Ol 8.12 ND 95 NO 0.63
OF-010 7.66 NO 12,0 NO 099
OF-011 No Mearumbk Discharge at Time a1 Sampling Event
OF-012 7,61 NO 1 27 NO 2.1
OF-013 No Measu able Dircharge at Time of Sumphl Event
OF-(102 724 N❑ NO N❑ 0.79
OF-003 7A1 ND 3�0 Np 0.82
OF-005 6,98 Np 69 NO 0.53
OF-W6 8,02 NO NO NO GAT
0,71 inches in 135 OF-007 7.41 NO NO NO OA41
12/17/2019 OF-Diu 7A0 NO 94 NO 0.73
houm OF-011 Nd Measurable Dulharge of Time af5amphV Event
OF-012 7.37 NO 2.7 NO 059
OF-013 7.17 NO NO NO 0291
OF-014 Ma MeaswoMe CiscFarge ai Time of Sompleg£.rut
OF-015 7.10 NO 22 NO 1.5
OF-002 7.16 NO 3 N❑ 0.62
OF-003 7.11 NO 2.5 NO 0.89
OF-005 6.79 NO NO NO 0.68
OFM6 7.04 3.49J 71 NO 1.00
OF-007 M Measurobk Descharge of Fine of S-Pimli Event
4/30/2020 2,96 inches in 36 hours OF-010 6.91 NO 38 1 NO 0.56
OF-011 No Meawmble Discharge at Time of Somp4ng Event
2F-012 7.12 NO 3-7 ND 0.48
OF-011 7.28 NO 3.8 NO 0291
Of-014 No M vr.nable Discharge m Time of Sampfeng Eeenr
OF-015 7.07 3;71 7.3 NO 0.81
OF- 743 ND ND NO 110
OF-003 No Meatumble Discharge m rime of Sampling vent
OF-005 7.05 ND 1 21 i NO 3,9
OF-006 8.02 NO NA I NO 73
OF-007 No MI-mbk Discha of Tmr of5ampling E�enr
7/82021 0.38 inches In 24 hours OF-010 7.02 NO 25 ND 1.7
OF-011 No Mearumbk DixtraW m Time of Sampling Event
OF-012 7A1 NO 16 NO 0.86
OF-013 7.53 ND 10 NO T.1
OF-1114 No Meommhle Discharge or Time of sampling[vent
OF-015 7,31 NO 57 NO 074
OF-002 7.32 4A2 J 5,1 NO 0.74
(OF-003 7.05 2.73 J 5,2 NO 1.50
OF-005 7.10 NO 4.7 NO (156
OF-006 No hku mble Discharge at Time of Sampling Ewnt
OF-007 Na Mearumbk Dwhotge W Time of SompLng tsenr
31920V 2.24 inches in 24 hours OF-010 699 N❑ 36 NO 0.65
OF011 No Memurnble Duchorge at rime of sampfiV(sent
OP-012 7.43 NO 3-6 N❑ 0118
OF-013 7.48 1 3851 1 4.3 N❑ 052
OF-014 hlo Measarabk Discharge at rime of SonmItng Fvent
OF-015 7.37 3.911 16 ND 0.73
OF-002 741 NO ND ND 061
OF-003 7.71 NO ND ND 1.10
OF-005 7.35 ND 4.0 ND 073
OF-006 NJ Meorwoble Dirrharge of Tme of Sampling 6-1
OF-007 NP r,-.bk i,W Time of SomPTv DiscW ,9 Esenl
12/6/2022 0.26 inches in 24 hours OF-010 &DD No 5A NO 0.62
OF-031 Na Mearumbk Discharge or Time of Sampling Event
OF-012 726 NO 8.5 ND 0.46
OF-013 T.26 NO 3.3 NO 2.00
OF-014 No Meorumble Discharge at Time of Sampfng Esrnr
OF-0I5 7.39 NO 1 4.3 NO 0.71
N4t[}:
HEN-n-herane e>;rractable material
TSS=total suspended solids
NO-Nan-Detect romentration detected was below the laboratory Meti l Detection limit(MOLS
J=the reported analyte conceniratien is between the laboratory MDL and the Method Reporting Limit(MRq
nrl=milligrams per liter
Ip A= cr rams per liter
=Concentration is ahove respertive benchmark value

Stormwater Discharge outfall(SDO)Visual Monitoring Results Summary:2017 through 2022 t.
Siemens Energy,Inc.-Stormwater Compliance �`■' �`�"
NPDES permit No.NCS000021
S&ME Project No.219282
7W7 OF-002 Tan None 3 2 4 No Yes None Nei-r_
OF-003 Tan/Light Tan None 3 3 2 No No _ None None
OF-005 Tan None 4 4 4 No No Very slight sheen on water None
2A4 inches in 13.5 OF-006 Brown/Light Blown None 5 3 6 No No Very low flow,organics present None
1 012 3/2 0 1 7 hours OF-007 Very Light Tan None 2 2 2 No No None None
OF-010 Tan None 4 2 4 Yes No None None
OF-011 No Measurable Discharge of Time of Sampling Event
kOF(U)07
Light Tan None 3 2 2 No No None None
No Measurable Discharge at lime of Sampling Evenf
Very Light Tan None 3 2 4 Yes Yes Minor areas of foam slightly downstream from outfall None
ti ht Brown None 3.0 2 3 No No None None
Li ht Tan None 4 3 4 No No None None
Li ht Brown/Tan None 4 2 4 No No None None
0.71 inches in 13.5 Light Tan None 2 2 3 No No Some areas of foam at top of riprap channel-not at outfall None
1211712019 hours OF-010 Tan/Light Tan None 3.0 2 3 Yes No Minor areas of foam at edge of concrete flared end None
OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 Clear to Tan None 2 2 2 No No None None
OF-013 CSeartoTan None 2 1 2 No No None None
OF-014 No Measurable Discharge at time of Sampling Event
OF-015 Orange to Brown ND 22 3 7 No No None None
OF-602 Light Brown Slight Organic 7 7 7 No No Non-oil related sheen observed on water None
OF-003 Tan to Light Brown None 4 4 5 No No None None
OF-005 Tan None 2 1 2 No No None None
OF-006 Light Brown None 6 1 5 No No None None
2.96 inches in 36 OF-007 No Measurable Discharge at Time of Sampling Event
4/30/2020 OF-010 Light Tan None 3 3 4 Yes No None None
hours OF-011 No Measurable Discharge at Time of Sampling Even;
OF-012 Li htTan None 2 2 2 No No None None
OF-013 Light Tan None 2 2 2 No No None None
OF-014 No Measurable Discharge at Time of Sampling Event
OF-015 Light Orange/Brown None 8 8 5 I No No None None
OF-002 Clear None 2 1 200 1 No No None None
OF�003 No Measurabie Discharge at Time of Sampling Event
0F•005 Tan None 2 5 5 Yes No None None
OF-0% Clear None 1 1 1 Yes No None None
0.38 inches in 24 OF-007 No Measurabie Discharge at Time of Sampling Event
7/012021 OF-010 Tan None 3 3 3 No No None None
hours
OF-011 No Measurabie Discharge of Time of Sampling Event
OF-012 Light Tan Atone 2 2 2 No No None None
OF-013 Light Tan None 2 3 3 No No None None
OF-014 No Measurable Discharge at Time ofSamphng Event
OF-015 Clear None 1 2 2 No No None None
OF-002 Light Tan None 2 1 2 No No None None
OF-003 Tan None B 1 1 No No None None
OF-005 Clear None 1 1 1 Yes No None None
OF-006 No Measurable Discharge at Time of Sampling Event
2.24 inches in 24 OF-007 No Measurabia Discharge at Time of Sampling Event
3/9/2022 OF-01C Tan None 2 3 Yes No None None
hours
OF-011 No Measarabfe Discharge of Time of Sampling Event
OF-012 Light Tan I None 2 1 1 Yes No None None
OF-013 Clear None 1 1 1 No No None None
OF-014 No Measurabie Discharge of Time of Sampling Event
OF-015 Tan None 5 5 S No No None None
OF-002 Clear None 1 1 1 No No None None
OF-003 Clear None 21 1 No No None None
OF-005 Clear None 1 1 1 No No None None
OF-006 No Measorahie Discharge of Time of Sampling Event
0.26 inches in 24 OF-OD7 No Measurabie Ditcharge at rune of Sampling Event
12/6/2022 hours OF-010 Light Tan None 2 2 2 1 Yes I No None None
OF-011 No Measurabie Discharge or Time of Sampling Event
OF-012 Yellowish Tint None 2.0 3 3 Yes No None None
OF-013 Clear None 1 1 1 No No None None
OF-014 No Measarabie Discharge at Time of Sompfing Event
OF-015 Clear None 1 1 1 1 Yes I No None None

Stormwater Discharge Outfall(SDO)Visual!Monitoring Results Summary.2017 through 2022 =_
Siemens Energy,Inc.-Stormwater Compliance
NPDES Permit No.NCS000021
S&ME Project No.219282
OF-002 Tan None 3 2 4 No Yes None None
OF-003 Tan/Light Tan None 3 3 2 No No None None
OF-005 Tan None 4 4 4 No No Very slight sheen on water None
2.04 inches in 13.5 OF-006 Brown/Light Brown None 5 3 6 No No Very low flow,organics present None
1012312017 hours OF-007 Very Light Tan None 2 2 2 No No None None
OF-010 Tan None 4 2 4 Yes No None None
OF-oil No Measurable Discharge or Time of Sampling Event
OF-012 Light Tan None 3 2 2 No No None None
OF-013 No Measurable Discharge at Time of Sampling Event
OF-002 Very Light Tan None 3 2 4 Yes Yes Minor areas of foam slightly downstream from outfall None
OF-003 Light Brown None 3.0 2 3 No No I None None
OF-005 Light Tan None 4 3 4 No No None None
OF-006 Light Brown/Tan None 4 2 4 No No None None
0.71 inches in 13.5 OF-007 Light Tan None 2 2 3 No No Some areas of foam at top of riprap channel-not at outfall None
1 2117/2 01 9 OF-010 Tan/Light Tan More 3.0 2 3 Yes No Minor areas of foam at edge of concrete Bared end None
hours OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 Clear to Tan None 2 2 2 No No None None
OF-013 Clear to Tan None 2 1 2 No No None None
OF-014 No Measurable Discharge at Time of 5amp8ng Event
OF-015 Orange to Brown ND 22 3 7 No No None None
OF-002 Light Brown Slight Organic 7 7 7 No No Non-oil related sheen observed on water None
OF-003 Tan to Light Brown None 4 4 5 No No None None
OF-MS Tan None 2 1 2 No No None None
OF-006 Li ht Brown None 6 1 5 No No None None
296 inches in 36 OF-007 No Measurable Discharge at Time of Sampling Event
4/30/2020 OF-010 Light Tan None 3 3 4 Yes No None None
hours OF-011 No Measurable Discharge at Time of Sampling Event
OF-012 Light Tan None 2 2 2 No Nn None None
OF-013 Light Tan None 2 2 2 No No None None
OF-014 Na Measurabte Discharge at IIme of sampling Event
OF-015 Light Orange/Brown None B B 5 No No None None
OF-002 Clear None 2 1 2.00 No No None None
OF-003 No Measurable Discharge of Time of Sampling Event
OF-005 Tan None 2 5 5 Yes I No None None
OF-006 Clear None 1 1 1 Yes I No None None
0.36 inches in 24 OF-007 No Measurable Discharge at rime of Sampling Event
7/5/2021 hours OF-010 Tan None 3 3 3 1 No I No None None
OF-011 No Meosurobfe Discharge at Time of Sampling Event
OF-012 Light Tan None 2 2 2 No T No None None
OF-013 Li hlTan None 2 3 3 No I No None None
OF-014 No Measurable Discharge at Time of Sampling Fvew
OF-01s Clear None 1 2 2 No No None None
OF-002 Light Tan None 2 1 2 No No None None
OF-003 Tan None B 1 1 No No None None
OF-005 Clear None l 1 1 Yes No None None
OF-006 No Measurable Discharge at Time of sampling Event
2.24 inches in 24 OF-007 No Measurable Discharge at rime of Sampling Event
3/9/2022 hours OF-010 Tan None 2 3 3 1 Yes I No None None
OF-011 No Measurable Dischorge of Time of Sampling Event
OF-012 Light Tan None 2 1 1 Yes Np None None
OF-013 Clear None 1 1 No No None None
OF-014 No Measurable Discharge at Time of sampling Event
OF-015 Tan None 5 5 5 No No None None
OF-002 Clear None 1 1 1 No No None None
OF-003 Clear None 2 1 1 No No None None
OF-005 Clear None 1 1 1 No No None None
OF-006 No Measurable Discharge at Time of Sampling Event
0.26 inches in 24 OF-007 No Measurable Discharge at Tone of Sampling Event
12161222 0 hours OF-010 Light Tan None 2 2 2 1 Yes Na None None
OF-011 No Measurable Discharge at Time of sampling Event
OF-012 Yellowish Tint None 2,0 3 3 Yes No None None
OF-013 Clear None 1 1 1 No No None None
OF-014 No Measurable Discharge at Time of Sampling Event
OF-015 Clear None 1 1 1 1 Yes I No None None

SIEMENS
enemy August 11, 2023
Summary of Best Management Practices and Significant Industrial Activity Changes
Best management practices onsite include a preventative maintenance and housekeeping program. Outside
equipment are routinely inspected and serviced to maintain good working order. Grounds are maintained and
cleaned of debris. Containerized products and wastes are stored within secondary containment structures that are
routinely monitored and cleaned. Any accumulated stormwater is visually inspected before draining and
documented on inspection forms. Metal recycling roll offs are located under covered storage. Scrap equipment is
drained, cleaned, and covered if needed prior to stockpiling or sending off for recycling.
There have not been any significant industrial activity changes since last renewal of this permit.
Siemens Energy is a trademark licensed by Siemens AG. Page 1 of 1

SIEMENS
e n e rey August 11, 2023
Summary of Best Management Practices and Significant Industrial Activity Changes
Best management practices onsite include a preventative maintenance and housekeeping program. Outside
equipment are routinely inspected and serviced to maintain good working order. Grounds are maintained and
cleaned of debris. Containerized products and wastes are stored within secondary containment structures that are
routinely monitored and cleaned. Any accumulated stormwater is visually inspected before draining and
documented on inspection forms. Metal recycling roll offs are located under covered storage. Scrap equipment is
drained, cleaned, and covered if needed prior to stockpiling or sending off for recycling.
There have not been any significant industrial activity changes since last renewal of this permit.
Siemens Energy is a trademark licensed by Siemens AG. Page 1 of 1

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy, Mineral, and Land Resources—Stormwater Program
Facility Name: Charlotte Turbine Generator Service Center
Permit Number: NCS000021
Location Address: 5101 Westinghouse Blvd.
Charlotte,HC 28273
County:
Mecklenburg
"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 STO WATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature Date ` 0 2-3 -0E3`11 0
k)-P LA96c6 F
Print or type name of person signing above Title
SPPP Certification 10/13

EPA Identification Number NPOES Permit Number Facility Name Form Approved 03105/19
110000349588 NCS000021 Siemens Energy,Inc. OMB No.2040a04
Form U.S.Environmental Protection Agency
1 vioEPA Application for NPDES Permit to Discharge Wastewater
NPDES GENERAL INFORMATION
SECTIONi
1.1 Applicants Not Requiredto Submit Form 1
Is the facility a new or existing publicly owned Is the facility a new or existing treatment works
1.1.1 treatment works? 1.1.2 treating domestic sewage?
If yes,STOP.Do NOT complete 0 No if yes,STOP. Do NOT 0 No
Form 1.Complete Form 2A. complete Form 1.Complete
Form 2S.
1.2 Applicants Requiredto Submit Farm 1
1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
operation or a concentrated aquatic animal commercial,mining,or silvicultural facility that is
o_ production facility? currently discharging process wastewater?
n ] Yes 3 Complete Farm 1 No Yes 4 Complete Form 0 No
o- and Form 213. 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,
Q, mining,or silvicultural facility that has not yet commercial,mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
a ❑ Yes> Complete Form 1 []r No Yes 4 Complete Form 0 No
and Form 2D. 1 and Form 2E.
1.2.5 Is the facility a new or existing facility whose
'— discharge is composed entirely of stormwater
a associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
✓[ Yes 4 Complete Form 1 No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x)or
b 15 .
SECTIONDD- AND LOCATION(40
2.1 Facility Name
Siemens Energy,Inc.
0 2.2 EPA Identification Number
U
0 110000349588
2.3 Facility Contact
Name(first and last) Title Phone number
Richard Pope EQS Manager [phone]
a
Email address
[e-mail]
2.4 Facility Mailing Address
z
Street or P.O,box
5101 Westinghouse Blvd.
City or town State ZIP code
Charlottte NC 28273
EPA Form 3510-1(revised 3-19) Pagel

EPA Identification Number NPOES Permit Number Facility Name Form Approved 03105/19
110000349588 NCS00O021 Siemens Energy,Inc. OMB No.2040-0004
2.5 Facility Location
W Street,route number,or other specific identifier
Q 0 5101 Westinghouse Blvd.
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C o County name County code(if known)
g Mecklenburg 590
E City or town State ZIP code
z m Charlotte NC 28273
SECTION1 NAICS CODES1
3.1 SIC Code(s) Description(optional)
3511 Steam,Gas,and Hydraulic Turbines,and Turbine Generator Sets
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3.2 NAICS Code(s) Description(optional)
333611 Turbine and Turbine Generator Set Units Manfacturing
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4.1 Name of Operator
Siemens Energy,Inc.
0 4.2 Is the name you listed in Item 4.1 also the owner?
.m
E 0 Yes ❑ No
`o
4.3 Operator Status
❑ Public—federal ❑ Public—state ❑ Other public(specify)
o Private ❑ Other(specify)
4.4 Phone Number of Operator
[phone]
4.5 Operator Address
1�
Street or P.O.Box
E 4400 N Alafaya Trail
.= City or town State ZIP code
0 o Orlando Florida 32826
is U
Q Email address of operator
O See contact information
SECTION1 1 I
5.1 Is the facility located on Indian Land?
a as
_ _j El Yes F-1No
EPA Form 3510-1(revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
110000349588 NC5000021 Siemens Energy,Inc, OMB No.2040.0004
SECTION -/ I
6.1 Existing Environmental Permits(check all that apply and print or type the corresponding permit number for each)
w NPDES(discharges to surface 0 RCRA(hazardous wastes) ❑ UIC(underground injection of
o water) fluids)
L "= NCS000021 NCD079054680
> E:
LU a ❑ PSD(air emissions) ❑ Nonattainment program(CAA) ❑ NESHAPs(CAA)
� 19-068-568
w ❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section 404) ® Other(specify)
SECTIONI
7A Have you attached a topographic map containing all required information to this application?(See instructions for
specific requirements.)
❑r Yes ❑ No ❑ CAFO—Nat Applicable(See requirements in Form 28.)
SECTION 8.NATURE / I
8A Describe the nature of your business.
Manufacturing and repair of large power generation rotating equipment and associated auxiliaries.
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SECTION •s I
F9.
Does your facility use cooling water?
❑ Yes 0 No 4 SKIP to Item 10.1.
w Identify the source of cooling water.(Note that facilities that use a cooling water intake structure as described at
aU
, = 40 CFR 125,Subparts I and J may have additional application requirements at 40 CFR 122.21(r).Consult with your
75 NPDES permitting authority to determine what specific information needs to be submitted and when.)
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a N/A
U �
SECTION
I I I
10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)?(Check all that
apply.Consult with your NPDES permitting authority to determine what information needs to be submitted and
when.)
❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
a
Section 301(n)) 302(b)(2))
❑ Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g}}
0 Not applicable
EPA Farm 3510-1(revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name form Approved 03105119
110000349588 NCS000021 Siemens Energy,Inc. OMB No.2040-0004
SECTION • i
11.1 In Column 1 below,mark the sections of Form 1 that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all applicants are required to provide attachments.
Column 1 Column 2
❑✓ Section 1:Activities Requiring an NPDES Permit ❑ w/attachments
0 Section 2:Name,Mailing Address,and Location ❑ wl attachments
E] Section 3:SIC Codes ❑ w/attachments
✓❑ Section 4:operator Information ❑ wl attachments
© Section 5:Indian Land ❑ wl attachments
© Section 6: Existing Environmental Permits ❑ w/attachments
a�
✓❑ Section 7: Map wl topographic
ma Elwl additional attachments
o ❑� Section 8:Nature of Business ❑ wl attachments
© Section 9:Cooling Water Intake Structures ❑ w/attachments
Section 10:Variance Requests ❑ w/attachments
C
❑r Section 11:Checklist and Certification Statement ❑ w/attachments
r
11.2 Certification Statement
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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
Brian Maragno VP Large Generators
S' Date signed
08/10/2023
EPA Farm 3510-1(revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349588 NC5000021 SIEMENS ENERGY CHARLOTTE 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 LOCATIONt
1.1 Provide information on each of the facility's outfalls in the table below
Outfall Receiving Water Name latitude Longitude
Number
OF-002 Lake Wylie 35' 8' 36.69" 80° 59' 38.98"
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OF 003 Lake Wylie 35° 8' 51.28" 80° 59' 41.62"
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'-� OF-005 Lake Wylie 35° 8' 28.54" 80, 59' 29.72"
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Facility O
OF-006 Spray Y Pond 35° 8' 37.28" 80° 59' 25.41"
OF 017 Facility Spray Pond 350 8' 32.77" 80° 59' 24.95"
OF-008 Faci I ity Sp ray Po nd 35° 8' 31.55" 80' 59' 26.95"
IMPROVEMENTSSECTION 2. t
2.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes 0 No 4 SKIP to Section 3.
2.2 Briefly identify each applicable project in the table below.
Brief Identification and Affected Outfalls Final Compliance Dates
Description of Project (list cuffall numbers) Source(s)of Discharge
Required Projected
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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 3510.21F(Revised 3-19) Pagel

EPA Identification Number NPOES Permit Number Facility Name Form Approved 03105/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
SECTIONti• 1
4 3.1 Have you attached a site drainage map containing all required information to this application?(See instructions for
°i M R specific guidance.)
a` ® Yes ❑ No
SECTION 4. •O I
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 mite radius of the facility)
specify units specify units
OF-002 5.1 acres 8.4 acres
specify units specify units
OF-003 11.6 acres 16.0 acres
specify units specify units
OF-005 3.05 acres 3.2 acres
specify units specify units
OF-006 3.9 acres 6.3 acres
specify units specify units
OF-007 1.9 acres 2.4 acres
specify units specify units
OF-008 0.6 acres 0.6 acres
4.2 Provide a narrative description of the facility's significant material in the space below. (See instructions for content
requirements.)
See attachment
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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)
OF-002 Spill Prevention,Control,and Countermeasure Plan;visual inspections, housekeeping,preve Not Applica
OF-003 Spill Prevention,Control,and Countermeasure Plan;visual inspections, housekeeping,preve Not Applica
OF-005 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping, preve Not Applica
OF-006 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-007 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-008 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
EPA Form 3510-2F(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB Nu.2o4M004
Form U.S Environmental Protection Agency
2F 4'CPA Application for NPDES Permit to Discharge Wastewater
NPDES G l'"'� STORMWATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITY
SECTION 1.OUTFALL LOCATION r
1.1 Provide information on each of the facili 's outfalls in the table below
Outfall Receiving Water Name Latitude Longitude
Number
OF-010 facility Spray Pond 35' 8' 34.95" 80, 59' 23.52"
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OF-011 Lake Wylie 35` 8' 55.28" 80` 59' 26.60"
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J OF-012 Lake Wylie 35' 8' 41.72" 80° 59' 51.85"
p OF-013 Lake Wylie 35` 8' 40.21" 8o* 59' 43.99"
OF-014 Lake Wylie 35' 8' 37.40" 80° 59' 54.36"
OF-015 Lake Wylie 35" 8' 13.53" 80, 59' 34.43"
SECTION • • r
2.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes 0 No -*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 (listouftall numbers)
Required Projected
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2.3 Have you attached sheets describing any additional water pollution control programs(or other environmental projects
that may affect your discharges)that you now have underway or planned?(Optional Item)
❑ Yes ❑ No
EPA Form 3510.2F(Revised 3-19) Page 1

EPA Identiftcation Number NPDES Permit Number Facility Name Form Approved 03105/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
SECTION1 ' I
W 3.1 Have you attached a site drainage map containing all required information to this application?(See instructions for
W R specific guidance.)
o ® Yes ❑ No
SECTIO 4.POLLUTANT SOURCESi CFR 1122.26(c)(I)i
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) (wllhin a mile radius of the facility)
specify units specify units
OF-010 5.2 acres 16.8 acres
specify units specify units
OF-Oil 4.2 acres 7.8 acres
specify units specify units
OF-012 16.8 acres 22.6 acres
specify units specify units
OF-013 8.0 acres 11.8 acres
specify units specify units
OF-014 D,1 acres 2.9 acres
specify units specify units
OF-015 0.2 acres 3.1 acres
4.2 Provide a narrative description of the facility's significant material in the space below.(See instructions for content
requirements.)
See attachment
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m
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d
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
OF-010 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-011 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-012 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-013 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-014 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
OF-015 Spill Prevention,Control,and Countermeasure Plan;visual inspections,housekeeping,preve Not Applica
EPA Form 3510-21F(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
SECTION •N STORMWATER 1 I
5.1 l certify under penalty of law that the outfall(s) covered by this application have been tested or evaluated for the
presence of non-stormwater discharges. Moreover, 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
Signature Date signed
Fn 5.2 Provide the testing information requested in the table below.
Onsite Drainage Points
y Outfall
Number Description of Testing Method Used Date(s)of Testing Directly Observed
a
During Test
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NA
0
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SECTIONOR I 1
6.1 Describe any significant leaks or spills of toxic or hazardous pollutants in the last three years.
None.
`o
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SECTIONDISCHARGE INFORMATIONI
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables you must
a com lete. Not all applicants need to complete each table.
7.1 Is this a new source or new discharge?
❑ Yes-+ See instructions regarding submission of No 3 See instructions regarding submission of
estimated data. El actual data.
Tables A, B,C,and D
7.2 Have you completed Table A for each outfall?
❑ Yes El No
EPA Form 3510-2F(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE 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 0 No 4 SKIP to Item 7.5.
7.4 Have you completed Table B by providing quantitative data for those pollutants that are(1)limited either directly or
indirectly in an ELG and/or(2)subject to effluent limitations in an NPDES permit for the facility's process wastewater?
❑ Yes ❑ No
7.5 Do you know or have reason to believe any pollutants in Exhibit 2F-2 are present in the discharge?
❑ Yes 0 No 4 SKIP to Item 7.7.
7.6 Have you listed all pollutants in Exhibit 2F-2 that you know or have reason to believe are present in the discharge and
provided quantitative data or an explanation for those pollutants in Table C?
❑ Yes ❑ No
7.7 Do you qualify for a small business exemption under the criteria specified in the Instructions?
❑ Yes 4SKIP to Item 7.18. 0 No
7.8 Do you know or have reason to believe any pollutants in Exhibit 2F-3 are present in the discharge?
Cl Yes 0 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
:r
Table C?
c
C ❑ Yes ❑ No
ca
0 7.10 Do you expect any of the pollutants in Exhibit 2F-3 to be discharged in concentrations of 10 ppb or greater?
❑ Yes 0 No 4 SKIP to Item 7.12.
C 7.11 Have you provided quantitative data in Table C for those pollutants in Exhibit 2F-3 that you expect to be discharged in
a, concentrations of 10 ppb or greater?
R
y ❑ Yes ❑ No
7.12 Do you expect acrolein,acrylonitrile,2,4-dinitrophenol,or 2-methyl-4,6-dinitrophenol to be discharged in concentrations
of 100 ppb or greater?
❑ Yes 0 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?
0 Yes ❑ No
EPA Form 3510-2F(Revised 3.19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03105/19
1100D0349588 NCS000021 SIEMENS ENERGY CHARLOTTE 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
o manufactured as an intermediate or final product or byproduct?
c a ElYes ElNo 4 SKIP to Section 8.
0
7.19 List the pollutants below,including TCDD if applicable,
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1.Nitrate-nitrite 4. Phosphorus(as P),total 7. Iron,total
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t 2• Nitrogen,total organic(as N) 5,Surfactants 8- Molybdenum,total
2
a 3.Oil and grease 6•Aluminum,total 9• Chromium,total
SECTION 8.BIOLOGICAL TOXICITY TESTING DATA 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?
a
❑ Yes 0 No 4 SKIP to Section 9.
r
8.2 Identify the tests and their purposes below.
Submitted to NPDES
W Test(s) Purpose ofTest(s) Date Submitted
x Permitting Authori ?
0
H
❑ Yes ❑ No
0
❑ Yes ❑ No
m0
❑ Yes ❑ No
INFORMATIONSECTION 9.CONTRACT ANALYSIS 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?
0 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 laboratorylfirm ENCO Laboratories S&ME,Inc.
0
M
E
0
N Laboratory address 102-A Woodwinds Industrial 2016 Ayrsley Town Blvd.,
a1 Court,Cary,North Carolina Suite 2-A,Charlotte,North
c 27511 Carolina 28273
a
o Phone number
Ca [phone] (7041523-4726
Pollutant(s)analyzed Nitrate/Nitrite as N,pH, Consulting firm-S&ME,
Temperature,Total Kjedahl subcontract laboratory for
Nitrogen,Total Nitrogen,Total analysis is ENCO.
Suspended Solids
EPA Form 3510-2F(Revised 3-19) Page 5

EPA identification Number NPDES Permit Number Facility Name Farm Approved 03/05119
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No,2040.0004
g 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
omanufactured as an intermediate or final product or byproduct?
c
❑ Yes ❑ No 4 SKIP to Section 8.
0
E 7.19 List the pollutants below, including TCOD if applicable.
0
1.Copper,total 4. 7.
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2• Nickel,total 6• 8.
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R 3.Antimony,total 6. 9•
SECTION • •GICAL TOXICITY TESTING I 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?
a
U)
❑ Yes ❑ No 4 SKIP to Section 9.
4) 8.2 Identify the tests and their purposes below.
Test(s) Purpose of Test(s) Submitted to NPDI±B Date Submitted
Permitting Authori
0
❑ Yes ❑ No
c�
o ❑ Yes ❑ No
0
m ❑ Yes ❑ No
SECTIO 9.CONTRACT •' • 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
0
E
0
N Laboratory address
c
U
L
0
Phone number
ca
Pollutant(s)analyzed
EPA Form 3510-2F(Revised 3-19) Page 5

EPA Identification Number NPIJES Permit Number Facility Name Form Approved 03/05/19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE OMB No.2040-0004
SECTION1 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 appiica#ion. For
each section,specify in Column 2 any attachments that you are enclosing to aiert the permitting authority. Note that not
all applicants are required to com Iete all sections or provide attachments.
Column 1 Column 2
ID Section 1 wl attachments(e.g.,responses for additional outfalls)
Z Section 2 ❑ wl attachments
r❑ Section 3 [] wl site drainage map
✓❑ Section 4 r❑ wl attachments
0 Section 5 ❑ wl attachments
0 Section 6 ❑ wl attachments
G
E 0 Section 7 ❑ Table A ❑ wl small business exemption request
is
❑ Table B wl analytical results as an attachment
0
w ❑ Table C ❑ Table D
❑ Section S ❑ wlattachments
G
❑ Section 9 ❑ wlattachments(e.g., responses for additional contact laboratories or firms)
Y
❑ 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
6ew em-ao
Sign re Date signed eon
EPA Form 351 D-2F(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 0310509
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE SEE ATTACHED TABLE OMB No.2040-0004
TABLE A.CONVENTIONAL AND NON CONVENTIONAL1
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 Flow-Weighted Grab Sample Taken Flow-Weighted Events Sampled (new sourceinew
During First During First dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instructions)
1. Oil and grease
2. Biochemical oxygen demand (BOD5)
3. Chemical oxygen demand (COD)
4. Total suspended solids(TSS)
5. Total phosphorus
6. Total Kjeldahl nitrogen(TKN)
7. Total nitrogen(as N)
pH(minimum)
8.
pH(maximum)
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

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EPA Identification Number NPOES Permit Number Facility Name Outtall Number Form Approved 03105l19
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE SEE ATTACHED TABLE OMB No.2040.0004
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 Flow-Weighted Grab Sample Taken Flow-Weighted Events Sampled (new source/new
During First During First dischargers only;use
30 Minutes Composite 30 Minutes Composite codes in instructions)
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

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number J Form Approved 03/05119
110000349588 NCS000021 SIEMENS ENERGY CHARLOTTE SEE ATTACHED TABLE OMB No.2040-00D4
TABLE C.TOXIC POLLUTANTS, CERTAIN HAZARDOUS SUBSTANCES,AND ASBESTOS(40 CFR 122.26(c)(1)(i)(E)(4)and 40 CFR 122.21(g)(7)(vi)(B)and (vii))'
List each pollutant shown in Exhibits 2F-2,2F-3,and 21` 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 e ' units (spec units Number of Storm Information
Pollutant and CAS Number(if available) Grab Sample Taken Flow-Weighted flow-Weighted Events Sampled Grab Sample Taken (new source/new
.'
During First During First dischargers only,use
30 Minutes Composite 30 Minutes Composite codes in instructions)
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2F(Revised 3-19) Page 11

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EPA Identification Number NPDES Permit Number Facility name Oultall Number Form Approved 03105119
110000349588 NCSOOOD21 SIEMENS ENERGY CHARLOTTE SEE ATTACHED TABLE OMB No.2040-0004
TABLE D.STORM EVENT INFORMATION40
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 hours) Storm Event End of Previous Measurable Rain During Rain Event (in gallons or specify units)
(in inches) Event (in gpm or specify units)
Provide a description of the method of flow measurement or estimate.
EPA Form 3510-2F(Revised 3-19) Page 13