NCS000022_Fact sheet binder_20240131

DEQ / DEMLR
FACT SHEET FOR NPDES INDUSTRIAL INDIVIDUAL
STORMWATER PERMIT DEVELOPMENT
Basic Information for Permit Issuance and Renewals:
Permit Writer/Date Brianna Young 1/22/2024
Permit Number NCS000022
Owner/Facility Name Global Nuclear Fuel—Americas,LLC/Global
Nuclear Fuel—Americas,LLC
325180/Other Basic Inorganic Chemical
Manufacturing
3724/Aircraft Engines and Parts
SIC(NAICS)Code/Category 3356/Rolling,Drawing and Extruding of
Nonferrous Metals,except Copper and Aluminum
3499/Miscellaneous Metal Work
2819/Industrial Organic Chemicals,Not Classified
Elsewhere
Basin Name/Sub-basin number Cape Fear/03-06-23
Receiving Stream/HUC SW001-SW005, SW014, SW015, SW015i: UT to
Prince George Creek/030300070807
SWO06-SWO13, SW016, SW018, SW013i: UT to
NE Cape Fear River/030300070809
Stream Classification/Stream Segment SW001-SW005, SW014, SW015, SW015i: C; Sw/
18-74-53
SW006-SW013, SW016, SW018, SW013i: C; Sw,
PNA/ 18-74- 52.5
Is the stream impaired on 303 d list]? No
Any TMDLs? No
Any threatened and/or endangered species? See Section 2 below
Any compliance concerns? See Section 2 below
Any permit mods since lastpermit? See Section 1 below
New expiration date 2/28/2029
Comments on Draft Permit? See Section 6(below)
Section 1. Facility Activities and Process:
Global Nuclear Fuel—Americas, LLC (GNF-A) conducts manufacturing operations related to its
Aircraft Engines and Nuclear Energy businesses. The facility manufactures aircraft engine components,
reactor fuel from uranium hexafluoride, zircalloy components for reactor fuel bundles, reactor auxiliary
equipment, and performs assembly of reactor fuel bundles. Per information submitted with the permit
renewal, the developed portions of the facility consists of:
• Manufacturing Buildings: Manufacturing operations are conducted in the Aircraft
Engines/Service Components Operation (AE/SCO)building, Fuel Components Operation(FCO)
building, Fuel Manufacturing Operations (FMO)building, and the Dry Conversion Process
(DCP) and HF buildings.
• Support buildings: Other buildings include the office buildings, site maintenance buildings, and
storage facilities.
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• Wastewater treatment facilities: GENE wastewater neutralization facility, GENE/GEAE/GNF
process wastewater aerated and process basins, GENE/GEAE/GNF sanitary wastewater
treatment facility, and GNF CaF2 warehouse buildings.
• Site grounds: Developed site grounds include paved roads,parking, outside storage areas,
recreation areas, and other landscaped areas.
Information in the permit history states the uranium at this site is controlled by Federal jurisdiction
through the Nuclear Regulatory Commission(NRC). This facility was regulated for effects on water
through their NRC permit (required to do upstream and downstream monitoring for uranium among
other requirements). Though stormwater was not specifically addressed in this sampling, these sampling
methods were sufficient to highlight and resolve potential radiation pollution sources onsite. The
USNRC permit used an"As Low As Reasonable Achievable" concept for approaching radiation
pollution and the Radiation Protection Section had a high level of confidence in the USNRC's ability to
effectively regulate GE under the existing license. All areas that could have uranium drained to Outfall
SW013.
Stormwater discharges to two waterbodies: the Northeast Cape Fear River and Prince George Creek.
The NE Cape Fear River receives the majority of the stormwater runoff, as well as treated process and
sanitary wastewaters permitted under NPDES wastewater permit NC0001228. Prince George Creek
receives stormwater runoff from the eastern portion of the facility.
Since the last permit renewal, the following changes have been made at the facility:
• SW008: Removed 2 large storage tanks and added a cooling tower and propylene tank
• SW009: Installed new generator with double walled fuel tank
• SWO10: Replaced 1-12SO4 tank with smaller, double walled tank
• SWO11: Updated drainage area
• SW017: Removed solvent storage building and replaced 1 large cooling tower with 2 smaller
cooling towers (new towers have containment and drain to process sewer system)
• SW013i: Outfall added for sampling purposes in 2015
• SW015i: Outfall added for sampling purposes in 2015; location contains waters from Outfalls
SW001, SW002, SW003, SW004, SW005, SW014, and SW015.
• SW018: Permanently removed 7 sources from area and removed covered drying bed
With the current permit renewal application, GNF-A requested ROS continuation(granted in DEQ letter
dated 8/13/1991) for outfalls SW09, SW013, and SW014 and stated ROS was changed from outfall
SW014 to outfall SW001 during the last permit renewal as the drainage basin was redesigned and
representative of roadways and onsite parking.
Per the inspection report (conducted 11/2022), sampling is conducted on a semiannual basis with no
exceedances. Representative outfall status has been granted for outfalls SW009, SW013i, SW015i to
represent all other points. The inspection report also notes the facility conducts extensive wastewater
and groundwater sampling as well.
Outfall SW001:
Drainage area consists of a parking area. Potential pollutants include: Oil and TSS.
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Outfall SW002:
Drainage area consists of chemical storage and dumpsters. Potential pollutants include: Oil, chemicals,
metals, and TSS.
Outfall SW003:
Drainage area consists of a 5,000 gallon used oil tank, a 6,000 gallon used oil tank, a 10,000 gallon used
oil tank, a 300 gallon used oil evaporator, dumpsters, and a 2,200 gallon diesel fuel tank-generator.
Potential pollutants include: Oil and TSS.
Outfall SW004:
Drainage area consists of a parking area. Potential pollutants include: Oil and TSS.
Outfall SW005:
Drainage area consists of an oil storage building, dumpsters, and a cooling tower. Potential pollutants
include: Oil, solvent,paint, cooling tower overspray, and TSS.
Outfall SW006:
Drainage area consists of mundy dumpsters. Potential pollutants include: Oil, metals, and TSS.
Outfall SW007:
Drainage area consists of two (2) ethylene glycol tanks, a cooling tower, and emergency generator.
Potential pollutants include: Ethylene glycol, diesel fuel, water treatment chemicals, and cooling tower
overspray.
Outfall SW008/8I:
Drainage areas consist of metal chips in dumpster, waste macro etch tank, a 20,000 gallon waste
coolant/red dye tank, dumpsters, grease accumulation bin, propylene glycol tanks, and a cooling tower.
Outfall 8I was added during the GE90 building addition, which did not affect(add/eliminate) any
potential pollutant sources but did result in the need to slightly modify the sewer drainage system
outside the building. Potential pollutants include: Oil, grease, ethylene glycol, water treatment
chemicals, cooling tower overspray, and TSS.
Outfall SW009:
Drainage area consists of a 2,000 gallon sodium hydroxide solution tank, two (2) 4,800 gallon and 2
8,400 gallon waste etch acid tanks, a 14,000 gallon waste coolant tank, a 5,000 gallon nitric acid tank, a
5,000 gallon hydrofluoric acid tank, a 5,000 gallon waste sodium hydroxide solution tank, a 2,000 gallon
alkaline cleaner(15%NaOH)tank, a 400 gallon nitric acid tank, a 50 gallon hydrofluoric acid tank, 12
alkaline cleaner drums, scrap metal dumpsters, two (2) drums of zircaloy chips, a 1,700 gallon diesel
fuel tank-generator, flammable liquid/paint storage building, 119 gallon diesel fuel tank-generator, 210
gallon diesel fuel tank generator, dumpsters, cooling towers, and grease bin. Potential pollutants include:
Sodium hydroxide, waste etch acid, waste coolant, nitric acid, hydrofluoric acid, waste sodium
hydroxide, alkaline cleaner(15%NaOH), scrap metal, waste zirc chips and water/coolant, diesel fuel,
paint, diesel, treated cooling water, sulfuric acid, and grease.
Outfall SWO10:
Drainage area consists of sulfuric acid tank and totes. Potential pollutants include: Sulfuric acid.
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Outfall SWO11:
Drainage area consists of scrap metal/recycle dumpsters, 4,000 gallon gasoline and 500 gallon diesel
fuel tanks, chemical receiving area, chemical storage, and dumpsters. Potential pollutants include: Oil,
TSS, scrap metal, gasoline, diesel fuel, and chemicals.
Outfall SW012:
Drainage area consists of RCRA hazardous waste storage, chemical and oil storage, three (3) nitric acid
tanks, salt brine tank, ammonium fluoride solution tank, ammonium nitrate solution tank, aqua ammonia
tank, two (3) hydrofluoric tanks, storage of uranium compounds, 600 gallon used oil incinerator tank,
two (2) diesel generators, 500 gallon fuel oil tank, oil/lubricant drum storage, 20,000 gallon fuel oil and
565 gallon kerosene tanks, dumpsters, and cooling towers. Potential pollutants include: RCRA
hazardous wastes, chemicals, nitric acid, salt brine, ammonium fluoride, ammonium nitrate, oil,
hydrofluoric acid, diesel fuel, uranium, fuel oil, kerosene, treated cooling waster, and sulfuric acid.
Outfall SW013:
Drainage area consists of parking areas (vehicles and dump trucks) and calcium fluoride, lime, HF
(concentration< 3%) from storage and operations. Typically water released from this area is sent to the
process lagoons that discharge via the NPDES permit. Potential pollutants include: Oil, TSS, calcium
fluoride, lime, and hydrofluoric acid.
Outfall SW013I:
Drainage area consists of the industrial parts of Outfall SW013 (pads, WSFC building, equipment
storage areas). Drainage area contains treated hydrofluoric tank, hydrated lime tank, treated plating and
etch sludge tanks, calcium fluoride, ammonia nitrate solution, calcium fluoride sludge, ammonium
nitrate solution, hydrofluoric 10% solution tank, ammonium nitrate solution tank,uranium
compound/waste box storage, 285 gallon diesel fuel tank, and dumpsters. Potential pollutants include:
Hydrofluoric acid, lime, plating and etch sludge, ammonium nitrate, calcium fluoride, uranium, diesel
fuel, and TSS.
Outfall SW014:
Drainage area consists of runoff from offsite (1-140 is adjacent). Potential pollutants include: Oil and
TSS.
Outfall SW015:
Drainage area consists of parking areas and vehicle movement. Potential pollutants include: Oil and
TSS.
Outfall SW015I:
Drainage area consists of combined outfall to Prince George Creek from outfalls SW001, SW002,
SW003, SW004, SW005, SW014, and SW015.
Outfall SW016:
Drainage area consists of parking areas and vehicle movement. Potential pollutants include: Oil,
chemicals, and TSS.
Outfall SW018:
Drainage area consists of process lagoon basin site and dumpsters. Potential pollutants include: Sanitary
sludge, lime, and raw sewage.
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Why Industrial Sites with Stormwater are Subject to a Permit: Federal NPDES regulations define
stormwater discharge associated with industrial activity in 40 CFR §122.26 (b)(14) as: "the discharge
from any conveyance that is used for collecting and conveying storm water and that is directly related to
manufacturing,processing or raw materials storage areas at an industrial plant. The term does not
include discharges from facilities or activities excluded from the NPDES program under this part 122.
For the categories of industries identified in this section, the term includes, but is not limited to, storm
water [sic] discharges from industrial plant yards; immediate access roads and rail lines used or traveled
by carriers of raw materials, manufactured products, waste material, or byproducts used or created by
the facility; material handling sites; refuse sites; sites used for the application or disposal of process
waste waters (as defined at part 401 of this chapter); sites used for the storage and maintenance of
material handling equipment; sites used for residual treatment, storage, or disposal; shipping and
receiving areas; manufacturing buildings; storage areas (including tank farms) for raw materials, and
intermediate and final products; and areas where industrial activity has taken place in the past and
significant materials remain and are exposed to storm water. For the purposes of this paragraph, material
handling activities include storage, loading and unloading, transportation, or conveyance of any raw
material, intermediate product, final product, byproduct or waste product. The term excludes areas
located on plant lands separate from the plant's industrial activities, such as office buildings and
accompanying parking lots as long as the drainage from the excluded areas is not mixed with storm
water [sic] drained from the above described areas."
Section 2. Monitoring Information and Compliance History:
• May 2015 to April 2018, no benchmarks were exceeded
• April 2018 to October 2022, benchmarks exceeded for:
o SW009: Lead 2x, 1 Lead value reported as < 5 mg/L
o SW009 duplicate: Lead 2x, 1 Lead value reported as < 5 mg/L
o SW013i: 1 Lead value reported as< 5 mg/L
o SW015i: 1 Lead value reported as< 5 mg/L
• There have been several spills at the facility in the past several years (some of which were a
volume/quantity high enough to report to DEQ)
• Per permit file notes dated 6/19/2014:
o Monitoring requirements for Ammonia, TKN, BOD, and COD removed as they were
only for the sludge processing area, which was cleared. These parameters were first
introduced in the 2012 draft permit and were never in an issued permit.
o Outfall#1 replaced#14 per request of permittee and recommendation of WiRO. Much of
the onsite area previously drained by Outfall#14 was redirected to Outfall #1. Outfall #1
is now most representative of the road and parking drainage on site.
• Per an email dated 8/29/2014, Outfall SW015i may replace Outfall SW015, Outfall SW013i may
replace Outfall SW013, and representative outfall status will be modified from outfalls SW009,
SW013, and SW014 to Outfalls SW09, SW013i, and SW015i.
Threatened/Endangered Species:
In the vicinity of the discharge location, there is the Northern Long-earned Bat(Myotis septentrionalis;
NC status: T; Federal status: PE) and Eastern Big-eared Bat(Corynorhinus rafinesquii macrotis; NC
status: SC). In the nearby vicinity there are Pondspice (Litsea aestivalis;NC status: SC-V), Atlantic
Sturgeon(Acipenser oxyrinchus oxyrinchus;NC status: E; Federal status: E), West Indian Manatee
Page 5 of 14

(Trichechus manatus; NC status: T; Federal status: T), American Alligator(Alligator mississippiensis;
NC status: T; Federal status: T(S/A)), and Snowy Orchid(Platanthera nivea;NC status: E)
Section 3. Proposed Monitoring for Stormwater Discharges:
The Division considered potential pollutants from past and present industrial activities and data was
submitted for May 2015 to October 2022. Quantitative sampling included pH, TSS, O&G, and lead.
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 Global Nuclear Fuel—Americas, LLC site.
Uranium is not included as a monitoring parameter. It is mentioned here as an acknowledgement of past
discussions where it was decided the U.S. Nuclear Regulatory Commission(NRC) is effectively
regulating the facility under its NRC license. The license addresses a broad range of methods of
detecting radiation pollution including air sampling sites, vegetation and soil sampling points, surface
water monitoring points, and monitoring wells.
Outfalls SW001, SW003, SW004, SW014, and SWO15
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
pH BASIS: Pollutant indicator
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Page 6 of 14

Outfalls SW002, SW006, SW009, SWO11, and SW015i
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
pH BASIS: Pollutant indicator
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Quarterly monitoring
BOD BASIS: Discharge potential indicator
Quarterly monitoring
COD BASIS: Discharge potential indicator
Quarterly monitoring
Total Chromium BASIS: Potential pollutant from drainage area(metals present)
Quarterly monitoring
Total Copper BASIS: Potential pollutant from drainage area(metals present)
Quarterly monitoring
Total Lead BASIS: Potential pollutant from drainage area(metals present)
Quarterly monitoring
Total Zinc BASIS: Potential pollutant from drainage area (metals present)
Quarterly monitoring
Total Hardness BASIS: Monitoring for hardness dependent metals required
Page 7 of 14

Outfalls SW005, SW007, SW008/008I, SWO10, SW013, and SW016
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
pH BASIS: Pollutant indicator
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Quarterly monitoring
BOD BASIS: Discharge potential indicator
Quarterly monitoring
COD BASIS: Discharge potential indicator
Page 8 of 14

Outfalls SWO12 and SW013i
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
pH BASIS: Pollutant indicator
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Quarterly monitoring
BOD BASIS: Discharge potential indicator
Quarterly monitoring
COD BASIS: Discharge potential indicator
Quarterly monitoring
Ammonia Nitrogen BASIS: Discharge potential indicator
Quarterly monitoring
Total Nitrogen BASIS: Discharge potential indicator
Quarterly monitoring
Total Fluoride BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Lead BASIS: Potential pollutant from drainage area
Quarterly monitoring
Total Hardness BASIS: Monitoring for hardness dependent metals required
Page 9 of 14

Outfalls SWO18
Quarterly monitoring
Total Suspended Solids BASIS: Potential pollutant from drainage area and BMP effectiveness
(TSS) indicator.
Quarterly monitoring
pH BASIS: Pollutant indicator
Quarterly monitoring
Total Rainfall BASIS: Discharge potential indicator
Quarterly monitoring
Non-Polar Oil &Grease BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM
targets petroleum-based O&G
Quarterly monitoring
Monthly Oil Usage BASIS: Potential pollutant from drainage area
Quarterly monitoring
Fecal Coliform BASIS: Potential pollutant from drainage area
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 BM? 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
Page 10 of 14

ash removal in specific drainage areas at this site. For parameters that do not have a stormwater
benchmark, the Division may develop a benchmark value if appropriate toxicity data become available
or if rising trends in concentrations suggest a persistent source.
A summary of the benchmarks in the draft permit, and their basis, is below:
Parameter Benchmark Basis
Total Suspended 100 mg/L National Urban Runoff Program(NURP) Study, 1983
Solids TSS
H 6 s.u. —9 s.u. NC Water Quality Standard(Range)
Non-Polar Oil & Review of other state's daily maximum benchmark
Grease 15 mg/L concentration for this more targeted O&G;NC WQS that
EPA Method 1664 does not allow oil sheen in waters
SGT-HEM
BOD 30 mg/L BPJ; Based on Secondary Treatment Regulation(40 CFR
g 133.03
COD 120 mg/L BPJ; Generally found at levels 4x BOD5 in domestic
wastewaters
Fecal Coliform 1,000 col/100 Based on geometric mean of 10+ samples/year
mL
Ammonia Nitrogen 5 Based on the mussels-present/trout absent acute criteria table
summer .6 mg/L in the 2013 EPA criteria document
Ammonia Nitrogen 15 mg/L Based on the mussels-present/trout absent acute criteria table
winter in the 2013 EPA criteria document
Total Nitrogen 30 mg/L TKN+Nitrate+Nitrite Benchmarks
Total Fluoride 170 mg/L
1/2 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, 1/2 FAV
Lead Total 75 /L Acute A uatic Criterion, 1/2 FAV
Zinc Total 126 /L Acute Aquatic Criterion, 1/2 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.
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Flexibility in Tier Responses: Tier Two actions provide an opportunity for the permittee to propose an
alternative monitoring plan for approval by the Region:
• Alternatively, in lieu of steps 2 and 3, the permittee may, after two consecutive exceedances,
exercise the option of contacting the DEMLR Regional Engineer as provided below in Tier
Three. The Regional Engineer may direct the response actions on the part of the permittee as
provided in Tier Three, including reduced or additional sampling parameters or frequency.
• If pursuing the alternative above after two consecutive exceedances, the permittee may propose
an alternative monitoring plan for approval by the Regional Engineer.
The permit therefore allows the permittee to petition the Regional Office for monitoring changes sooner
than Tier Three (upon any four benchmark exceedances) and gives guidance on one option to take. For
example, the permittee may request that mercury only be monitored semi-annually under the tiers, or
that only parameters over the benchmark be monitored more frequently. In this way, changes to the
monitoring scheme for any outfall could be handled outside of a permit modification.
Other Proposed Requirements:
• It is standard for Stormwater Pollution Prevention Plan(SWPPP)requirements to include an
annual certification that stormwater outfalls have been evaluated for the presence of non-
stormwater discharges, and if any are identified, how those discharges are permitted or otherwise
authorized.
• Requirement to submit a request for permit modification if the facility identifies or creates any
new outfalls, removes outfalls, or alters any drainage area that changes potential pollutants.
• The Division expects the permittee to apply best professional judgment and consider the safety
of its personnel in fulfilling sampling obligations under the permit.
• Federal regulations require electronic submittal of all discharge monitoring reports (DMRs). If a
state does not establish a system to receive such submittals, then permittees must submit DMRs
electronically to the EPA.
• Quarterly QualitativeNisual Monitoring to assure regular observation of outfalls throughout
year.
Section 4. Changes from previous permit to draft:
• Regulatory citations added
• Monitoring increased from semi-annually to quarterly for all parameters (qualitative and
quantitative)
• "No discharge" clarifications made
• eDMR requirement added
• Feasibility study and online SWPPP certification conditions removed per updated Stormwater
Program requirements
• Outfall-specific monitoring implemented
• Boilerplate language moved into body of the permit; boilerplate no longer attached
• Monitoring for all outfalls has been separated to reflect industrial activity and potential pollutants
specific to each discharge area
• Monitoring for BOD and COD added for outfalls SW002, SW005, SW006, SW007,
SW008/008I, SW009, SWO10, SWO11, SW012, SW013, SW013i, SW015i, and SW016 due to
the presence of chemicals onsite
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• Monitoring for lead removed from outfalls SW001, SWO03, SWO04, SWO05, SWO07,
SWO08/008I, SWO10, SWO13, SWO14, SWO15, SWO16, and SWO18 as metals are not present
• Monitoring for total chromium, total copper, total lead, total zinc added for SWO02, SWO06,
SWO09, SWO11, and SW015i as metals are present in the drainage areas
• Monitoring for total hardness added for outfalls SWO02, SWO06, SWO09, SWO11, SWO12,
SW013i, and SW015i as monitoring for hardness dependent metals is required
• Monitoring for ammonia nitrogen and total nitrogen added for outfalls SWO12 and SWO13i due
to pollutants present in the drainage areas
• Monitoring for fecal coliform added for SWO18 as sanitary sludge and raw sewage present in the
drainage area
• 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: 11/16/2022
• Initial contact with Regional Office: 11/16/2022
• Draft sent to CO peer review: 11/15/2023
• Draft sent to Regional Office: 12/15/2023
• Final permit sent for supervisor signature: 1/24/2024
Section 7. Comments received on draft permit:
• Drew Reeside (GE Hitachi Nuclear; via email 1/16/2024):
o We were previously granted representative outfall status, do we need to submit that
request again before this permit becomes final?
■ DEMLR response: The request does need to be submitted again, but when you
choose to submit the request is up to you. It does not need to be done before the
permit becomes final.
o If we are not granted representative outfall status we request that either outfall 8 or 8i, 13
or 13i, and 15 or 15i be removed from sampling as these outfalls are in the same area and
are receiving stormwater from the same industrial locations.
■ DEMLR response: Representative outfall status (ROS) is a separate process from
the permit renewal process. You may request a permit modification to ask for the
removal of outfalls in the future, however, submitting a modification request does
not guarantee that outfalls will be removed.
o For the NCOIL sample, is that total site monthly oil usage, or oil usage for each outfall
area each month?
■ DEMLR response: The NCOIL parameter is the oil usage in each drainage area.
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o Please note that Outfalls 05, 10 and 11 were documented as "dry" for the 1 Semi23,
2Semi23 and 1 Semi22 events. Would any consideration be made to removing the
sampling requirements for these outfalls?
■ DEMLR response: If outfalls have the potential to discharge, monitoring
requirements must remain for those outfalls. As these outfalls have a potential to
discharge, even with recent no discharge events, monitoring shall remain in the
permit.
o The additional analyses requested include short hold times; BOD and Nitrate have a 48
hour hold and F. Coliform from stormwater has an 8 hour hold time. We should be able
to handle getting the 48 hold samples to laboratory within that window, but I am
concerned about the Coliform. I did confirm that Environmental Chemist, in Wilmington,
can perform the analysis, so this sample would go to EC instead of Pace. We may be
performing this event outside of normal business hours/on a weekend to satisfy the time
frame and"representative stormwater event" conditions. If EC is closed, we may miss the
8 hour hold time. Does the state have a list of labs that are open on weekends that can
perform fecal Coliform analysis?Additionally, due to the limitations on hold time,
possible lab availability, and berms/metal structure protecting the sludge from rainwater
would the state consider exempting this sampling requirement from the draft permit?
■ DEMLR response: A list of certified labs can be found on the Laboratory
Certification Branch website at https://www.deq.nc.gov/about/divisions/water-
resources/water-sciences/chemistry-laboratory/laboratory-certification-
branch/certified-laboratory-listings. The potential of samples being out of hold
time does not preclude samples needing to be collected and sampled for. If a
sample is out of hold time, you may make a comment on your eDMR report,
however, the result still needs to be reported.
o The field team stated some of these outfalls exhibit a small quantity of water,but we may
not have enough flow in some outfalls to collect the required amount of sample water.
What should our action be if we cannot collect the minimum required volume for samples
during the measurable storm event?
■ DEMLR response: If there is not enough discharge to collect a sample, you are
not expected to sample/report for the outfall for that storm event. However, you
must try and get a sample during the next storm event. This is why permittees
should try and sample during the first rain event of the quarter, so there are
multiple chances to collect a sample. If there has not been enough discharge to
collect a sample by the end of the quarter, then you must contact the appropriate
Regional Office to notify them.
Page 14 of 14

LOCALiQ
StarNews I The Dispatch PO Box 631697 Cincinnati,OH 45263-1697
Times-News
NORTH CAROLINA
PROOF OF PUBLICATION ENVIRONMENTAL
MANAGEMENT COMMIS-
SION INTENT TO ISSUE
Joyce Sanford NPDES STORMWATER
Joyce Sanford DISCHARGE PERMITS
Nc Division Of Energy,Mineral And Land Resources The North Carolina Environ.
mental Management Com-
1612 Mail Service CTR mission proposes to issue
Raleigh NC 27699-1600 NPDES harrge Permits) tostormwatethe per-
sons) listed below. Public
comment or obiection to the
draft permits is invited.
STATE OF NORTH CAROLINA,COUNTY OF NEW HANOVER written comments regarding
the proposed permit will be
accepted until 30 days after
The Wilmington Star-News,a newspaper printed and published in _ the publish dote of this notice
the city of Wilmington,and of general circulation in the County of de considered
onsi ion resort the
final
New Hanover, State of North Carolina,and personal knowledge of mit issuance and Permit
the facts herein state and that the notice hereto annexed was provisions. The Director of
the NC Division of Energy,
Published in said newspapers in the issue dated: Mineral, and Land Re-
sources (DEMLR) may hold
a public hearing should there
12/22/2023 be a significant degree of
Public Interest. Please mail
comments and/or informa-
and that the fees charged are legal. tion requests to DEMLR at
Sworn to and subscribed before on 12/22/2023 1612 Mail service Center,
Raleigh,NC 27699-1612.
• Global Nuclear Fuels -
Americas, LLC [PO Box 780,
Wilmington, NC 28402-0780)
has requested renewal of
permit NCS000022 for the
Global Nuclear Fuels
Americas, LLC facility in
New Hanover County. This
facility discharges to on un-
named tributary to Prince
George Creek and an un-
named tributary to North-
east Cape Fear River in the
Cafe Fear River Basin.
Interested persons may visit
DEMLR at 512 N. Salisbury
Legal Clerk � street, Raleigh, 27604 to review information an file.
Additional information on
NPOES Permits and this
no-
Notary,Stale of W may County of Br4pwn tics may be round on our
3/ ^ l �i^ webs://d
l / / dlvisl//deq.ergv-/about/
divisians/energv-mineral-
My Commisl expires and-land-resources/storm
water/stormwater-prograM
Publication Cost: $180.18 stormwater-public-notices,or
by contacting Brfanno Young
Order No: 9648255 #of Copies: at brianna.young®d".nc.gov
or 919407-3647.
Customer No: 745790 1
PO#:
THIS IS NOT AN INVOICE!
Please do not use thisform for payment remittance. 4
JAR 0 9114
KAITLYN FELTY
Notary Public ti,iZStpimwateiPro
State of Wisconsin
I'I Pagel of 1

Young, Brianna A
From: Reeside, Andrew(GE Vernova) <[e-mail]>
Sent: Tuesday, January 16, 2024 2:52 PM
To: Young, Brianna A
Cc: Williams, Karen (GE Vernova)
Subject: [External] NCS000022 Comments and Questions
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.
Hi Brianna,
I wanted to reach out to you regarding the Draft NPDES Stormwater Permit NCS000022. GE Vernova/GNF-A has the
following questions and comments:
• We were previously granted representative outfall status, do we need to submit that request again before this
permit becomes final?
• If we are not granted representative outfall status we request that either outfall 8 or 8i, 13 or 13i, and 15 or 15i
be removed from sampling as these outfalls are in the same area and are receiving stormwater from the same
industrial locations.
• For the NCOIL sample, is that total site monthly oil usage, or oil usage for each outfall area each month?
• Please note that Outfalls 05, 10 and 11 were documented as "dry"for the 1Semi23, 2Semi23 and 1Semi22
events. Would any consideration be made to removing the sampling requirements for these outfalls?
• The additional analyses requested include short hold times; BOD and Nitrate have a 48 hour hold and F. Coliform
from stormwater has an 8 hour hold time.We should be able to handle getting the 48 hold samples to
laboratory within that window, but I am concerned about the Coliform. I did confirm that Environmental
Chemist, in Wilmington, can perform the analysis, so this sample would go to EC instead of Pace. We may be
performing this event outside of normal business hours/on a weekend to satisfy the time frame
and "representative stormwater event" conditions. If EC is closed,we may miss the 8 hour hold time. Does the
state have a list of labs that are open on weekends that can perform fecal Coliform analysis?Additionally, due to
the limitations on hold time, possible lab availability, and berms/metal structure protecting the sludge from
rainwater would the state consider exempting this sampling requirement from the draft permit?
• The field team stated some of these outfalls exhibit a small quantity of water, but we may not have enough flow
in some outfalls to collect the required amount of sample water. What should our action be if we cannot collect
the minimum required volume for samples during the measurable storm event?
Thank you,
Drew Reeside
Sr. Facilities Environmental Lead
GE Hitachi Nuclear
Part of GE Vernova
M+1 910 523 0215
1

Young, Brianna A
From: Reeside, Andrew(GE Power Portfolio) <[e-mail]>
Sent: Friday, February 24, 2023 11:17 AM
To: Young, Brianna A
Subject: RE: [External] RE: Global Nuclear Fuel —Americas, LLC stormwater permit NCS000022
CAUTION: External email. Do not click links or open attachments unless you verify.Send all suspicious email as an attachment to
Report Spam.
Hi Brianna,
Outfall Number Industrial Activity/Potential pollutants BMPs
13 Oil/TSS form parking (employee Dikes, curbs, secondary containment,
vehicles,forklifts, occasional dump roofing and visual inspection prior to
truck) Calcium fluoride, lime, HF from release of stormwater.Typically any
storage and operations. HF water released from this area is sent
concentration <3%. to our process lagoons that discharge
via the NPDES permit.
14 Oil and TSS primarily from offsite (I- Surface and Grading
140 is adjacent)
15 Oil and TSS from parking and vehicle Surface and grading
movement (employee vehicles,
delivery vehicles, large trucks)
16 Oil and TSS from parking and vehicle Surface and grading
movement (employee vehicles)
If you have additional questions please reach out.
Regards,
Drew Reeside
Sr.Facilities Environmental Lead
GE Hitachi Nuclear
Part of GE Vernova
M+1 910 523 0215
From:Young, Brianna A<[e-mail]>
Sent: Monday,January 30, 2023 3:40 PM
To: Reeside, Andrew (GE Power Portfolio)<[e-mail]>
Subject: EXT: RE: [External] RE: Global Nuclear Fuel—Americas, LLC stormwater permit NCS000022
WARNING:This email originated from outside of GE. Please validate the sender's email address before clicking on links
or attachments as they may not be safe.
Good morning,
I have been reviewing the additional information you provided in December 2022 and saw information regarding
industrial activity is missing for outfalls SW013, SW014, SW015, and SW016.The information provided only states visual
monitoring is required. Please provide this information so that I may continue reviewing the renewal request.
1

Thank you,
Brianna Young, MS(she/her/hers)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)
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.
Based on the current guidance to minimize the spread of COVID-19,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.We appreciate your patience as we continue to serve the public
during this challenging time.
From:Young, Brianna A
Sent:Tuesday, December 6, 2022 3:47 PM
To: Reeside, Andrew (GE Power Portfolio)<[e-mail]>
Subject: RE: [External] RE: Global Nuclear Fuel—Americas, LLC stormwater permit NCS000022
Drew,
Thank you for providing this information. I will reach out if I have any questions once I have reviewed everything.
Thank you,
Brianna Young, MS(she/her/hers)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)
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.
Based on the current guidance to minimize the spread of COVID-19,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.We appreciate your patience as we continue to serve the public
during this challenging time.
From: Reeside, Andrew (GE Power Portfolio) <[e-mail]>
Sent:Tuesday, December 6, 2022 11:50 AM
2

To:Young, Brianna A<[e-mail]>
Subject: [External] RE: Global Nuclear Fuel—Americas, LLC stormwater permit NCS000022
CAUTION: External email. Do not click links or open attachments unless you verify.Send all suspicious email as an attachment to
Report Spam.
See attached for spreadsheet with the past 4 years of data. I have also attached a copy of our SPPP that contains most of
the information requested.There have been no major changes since the permit renewal application was submitted and
all information provided is still accurate.
NAICS code—325180
Outfalls and associated coordinates:
Table 3-1: Outfall Locations
Outfall Latitude Longitude Total area Impervious area Receiving water
number (acre) N
1 34"19'12" -77"55'27" 39.8 33 Prince George Creek
2 34"19'15" -77"55'28" 7.9 18 Prince George Creek
3 34019'19" -77055'29" 2.8 41 Prince George Creek
4 34019'26" -77055'36" 6.2 92 Prince George Creek
5 34019'27" -77055'41" 4.6 18 Prince George Creek
6 34019'24" -77055'45" 1.3 68 NE Cape Fear River
7 340 19'24" -77055'45" 4.9 100 NE Cape Fear River
8 340 19'25" -77055'45" 20.6 82 NE Cape Fear River
8I 34019'26" -77055'48"
9 340 19'28" -77055'58" 37.7 55 NE Cape Fear River
10 340 19'38" -77056'4" 1.6 20 NE Cape Fear River
11 340 19'33" -77"56'1" 4.1 55 NE Cape Fear River
12 340 19'39" -77056'11" 21.4 48 NE Cape Fear River
13 340 19'45" -77056'29" 66.7 23 NE Cape Fear River
14 34019' -77055'30" 6.0 36 Prince George Creek
15 34"19'31" -77"55'37" 3.7 51 Prince George Creek
16 34"19'36" -77"56'51" 20.3 13 NE Cape Fear River
18 34019'46" -77056'8" 16.1 9 NE Cape Fear River
The following Outfalls are defined by the permit for sampling purposes. They are not unique drainage areas but are
subsets or combinations of the drainage areas listed above.
Outfall Latitude Longitude Total area Impervious area Receiving water
number (acre) N
13i 340 19'36" -77056'33" 19.1 69 NE Cape Fear River
15i 34019'31" -77055'39" 71.0 37 Prince George Creek
Regards,
3

Drew Reeside
Sr.Facilities Environmental Lead
GE Hitachi Nuclear
Part of GE Vernova
M+1 910 523 0215
From: Young, Brianna A<[e-mail]>
Sent: Wednesday, November 16, 2022 10:03 AM
To: Huth, Ryan (GE Power Portfolio) <[e-mail]>
Cc:WILLIAMS, Karen (GE Power Portfolio)<[e-mail]>; Beard, Brad (GE Power Portfolio)
<Brad.Beard @ge.com>
Subject: EXT: Global Nuclear Fuel—Americas, LLC stormwater permit NCS000022
WARNING: This email originated from outside of GE. Please validate the sender's email address before clicking on links
or attachments as they may not be safe.
I am working on renewing the individual stormwater permit for the Global Nuclear Fuel—Americas, LLC
(NCS000022). 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 occurring onsite;
• Confirmation on the number of outfalls and associated coordinates;
• Description of industrial activity in each drainage area;
• SIC (NAICS) code;
• An electronic spreadsheet summarizing all of the monitoring data that has been collected since the
effective date of the current permit;
• Verification that the information in the renewal application is still complete and correct; and
• An explanation of any operational changes since the renewal application was submitted.
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 ePayment website
4

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/hers)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
,�: D_ E
NORTH CAROLINA ti ;
Department of Environmental quality
Email correspondence to and from this address is subject to the North
Carolina Public Records Law and may be disclosed to third parties.
Based on the current guidance to minimize the spread of COVID-19,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.We appreciate your patience as we continue to serve the public
during this challenging time.
5

Young, Brianna A
From: Lambe, Brian
Sent: Monday, November 21, 2022 2:11 PM
To: Young, Brianna A
Cc: Sams, Dan
Subject: NCS000022 renewal
Attachments: NCS000022_B I M S_20221021.pdf
Please find the attached inspection report.The site is well maintained and diligent in permit compliance. I found it
interesting the lack of sampling parameters, but then again, WW and groundwater sampling is prolific.There will be
additional WW sampling this year with upstream and downstream in the cape fear river.
Recommend issuance of renewal.
Brian Lambe
Environmental Specialist
910-796-7313
919-268-1678 cell
State of North Carolina I Environmental Quality I Energy,Mineral and Land Resources
127 Cardinal Drive Extension I Wilmington,NC 28405
910 796 7215 T 1 910 350 2004 F I luto://nortal.ncdenr.org/web/Ir,
1

Compliance Inspection Report
Permit:NCS000022 Effective: 12/01/14 Expiration: 11/30/18 Owner: Global Nuclear Fuel -Americas LLC
SOC: Effective: Expiration: Facility: Global Nuclear Fuel-Americas LLC
County: New Hanover Thomas Edison St
Region: Wilmington
Wilmington NC 28401
Contact Person:Karen Williams Title: EHS Projects Leader Phone: [phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On-Site Representative(s):
Related Permits:
Inspection Date: 10/21/2022 Entry Time 10:OOAM Exit Time: 11:30AM
Primary Inspector:Brian P Lambe Phone:
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Stormwater Discharge, Individual
Facility Status: Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page 1 of 3

Permit: NCS000022 Owner-Facility:Global Nuclear Fuel-Americas LLC
Inspection Date: 10/21/2022 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Met with Drew, John, and Karen to review application. No outstanding issues evident. Discussed one area with drums and
totes that may need to be inside secondary containment, but is to be evaluated by company. The drums were sealed or had
rain covers on them. There is curbing that may act as containment for any leaks or spills.The surrounding ground did not
appear to have any impacts from leaks or spills.
Page 2 of 3

Permit: NCS000022 Owner-Facility:Global Nuclear Fuel-Americas LLC
Inspection Date: 10/21/2022 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Stormwater Pollution Prevention Plan Yes No NA NE
Does the site have a Stormwater Pollution Prevention Plan? ❑ ❑ ❑
#Does the Plan include a General Location (USGS) map? ❑ ❑ ❑
#Does the Plan include a"Narrative Description of Practices"? ❑ ❑ ❑
#Does the Plan include a detailed site map including outfall locations and drainage areas? ❑ ❑ ❑
#Does the Plan include a list of significant spills occurring during the past 3 years? ❑ ❑ ❑
#Has the facility evaluated feasible alternatives to current practices? ❑ ❑ ❑
#Does the facility provide all necessary secondary containment? ❑ ❑ ❑
#Does the Plan include a BMP summary? ❑ ❑ ❑
#Does the Plan include a Spill Prevention and Response Plan (SPRP)? ❑ ❑ ❑
#Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? ❑ ❑ ❑
#Does the facility provide and document Employee Training? 0 ❑ ❑ ❑
#Does the Plan include a list of Responsible Party(s)? 0 ❑ ❑ ❑
# Is the Plan reviewed and updated annually? 0 ❑ ❑ ❑
#Does the Plan include a Stormwater Facility Inspection Program? 0 ❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented? 0 ❑ ❑ ❑
Comment: SPPP is well maintained. All elements accounted for.
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring? 0 ❑ ❑ ❑
Comment: Wood Co. conducts Quantitative Monitoring. GE staff often attends monitoring and reviews
documentation. Sampling is conducted on all outfalls.
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: Sampling is conducted on a semi annual basis. No exceedances for sampling. Representative
outfall status for 9, 13i, 15i to represent all other points.
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? 0 ❑ ❑ ❑
#Were all outfalls observed during the inspection? ❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ❑
#Has the facility evaluated all illicit(non stormwater)discharges? 0 ❑ ❑ ❑
Comment: The facility conducts extensive wastewater and groundwater sampling as well.
Page 3 of 3

Young, Brianna A
From: Reeside, Andrew(GE Power Portfolio) <[e-mail]>
Sent: Tuesday, December 6, 2022 11:50 AM
To: Young, Brianna A
Subject: [External] RE: Global Nuclear Fuel—Americas, LLC stormwater permit NCS000022
Attachments: SDO stormwater data 2018 to 2022.xlsx; Stormwater Pollution Prevention Plan2021
_FINAL.pdf
CAUTION: External email. Do not click links or open attachments unless you verify.Send all suspicious email as an attachment to
Report Spam.
See attached for spreadsheet with the past 4 years of data. I have also attached a copy of our SPPP that contains most of
the information requested.There have been no major changes since the permit renewal application was submitted and
all information provided is still accurate.
NAICS code—325180
Outfalls and associated coordinates:
Table 3-1: Outfall Locations
Outfall Latitude Longitude Total area Impervious area Receiving water
number (acre) N
1 34019'12" -77055'27" 39.8 33 Prince George Creek
2 34019'15" -77055'28" 7.9 18 Prince George Creek
3 34019'19" -77055'29" 2.8 41 Prince George Creek
4 34019'26" -77055'36" 6.2 92 Prince George Creek
5 34"19'27" -77"55'41" 4.6 18 Prince George Creek
6 340 19'24" -77055'45" 1.3 68 NE Cape Fear River
7 34"19'24" -77"55'45" 4.9 100 NE Cape Fear River
8 340 19'25" -77055'45" 20.6 82 NE Cape Fear River
8I 34019'26" -77055'48"
9 340 19'28" -77"55'58" 37.7 55 NE Cape Fear River
10 340 19'38" -77056'4" 1.6 20 NE Cape Fear River
11 340 19'33" -77056'1" 4.1 55 NE Cape Fear River
12 340 19'39" -77056'11" 21.4 48 NE Cape Fear River
13 340 19'45" -77"56'29" 66.7 23 NE Cape Fear River
14 34019' -77055'30" 6.0 36 Prince George Creek
15 34"19'31" -77"55'37" 3.7 51 Prince George Creek
16 34"19'36" -77"56'51" 20.3 13 NE Cape Fear River
18 34019'46" -77056'8" 16.1 9 NE Cape Fear River
The following Outfalls are defined by the permit for sampling purposes. They are not unique drainage areas but are
subsets or combinations of the drainage areas listed above.

Outfall Latitude Longitude Total area Impervious area Receiving water
number (acre) N
13i 340 19'36" -77056'33" 19.1 69 NE Cape Fear River
15i 340 19'31" -77055'39" 71.0 37 Prince George Creek
Regards,
Drew Reeside
Sr.Facilities Environmental Lead
GE Hitachi Nuclear
Part of GE Vernova
M+1 910 523 0215
From: Young, Brianna A<[e-mail]>
Sent: Wednesday, November 16, 2022 10:03 AM
To: Huth, Ryan (GE Power Portfolio)<[e-mail]>
Cc:WILLIAMS, Karen (GE Power Portfolio)<[e-mail]>; Beard, Brad (GE Power Portfolio)
<[e-mail]>
Subject: EXT: Global Nuclear Fuel—Americas, LLC stormwater permit NCS000022
WARNING: This email originated from outside of GE. Please validate the sender's email address before clicking on links
or attachments as they may not be safe.
I am working on renewing the individual stormwater permit for the Global Nuclear Fuel—Americas, LLC
(NCS000022). 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 occurring onsite;
• Confirmation on the number of outfalls and associated coordinates;
• Description of industrial activity in each drainage area;
• SIC (NAICS) code;
• An electronic spreadsheet summarizing all of the monitoring data that has been collected since the
effective date of the current permit;
• Verification that the information in the renewal application is still complete and correct; and
• An explanation of any operational changes since the renewal application was submitted.
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
2

• 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 Geor_ou�lias
• Stormwater outfall information: Email Bethany Geor_og ulias
• Visit the eDMR Six Steps website and complete Steps 1 and 2.
• Pay outstanding permit fees: Stormwater ePayment 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/hers)
Industrial Individual Permits Coordinator
Stormwater Permitting Program
NC DEQ/Division of Energy, Mineral, and Land Resources (DEMLR)
[e-mail](e-mail preferred)
919-707-3647 (office)
Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612
Physical address: 512 North Salisbury Street, Raleigh, NC 27604
,�: D E '�7'`
NORTH CAROLINA ti ;
Department of Environmental Quality
Email correspondence to and from this address is subject to the North
Carolina Public Records Law and may be disclosed to third parties.
Based on the current guidance to minimize the spread of COVID-19,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.We appreciate your patience as we continue to serve the public
during this challenging time.
3

SECTION 1.INTR OD UCTION
SECTION I
INTRODUCTION
1.1 GENERAL
The General Electric Company / Global Nuclear Fuel / GE — Hitachi Nuclear Energy facility
located in Wilmington, North Carolina (GE / GNF Wilmington) conducts manufacturing operations
related to its Aircraft Engines and Nuclear Energy businesses. The facility maintains two existing
National Pollutant Discharge Elimination System (NPDES) permits and one Wastewater Treatment
and Reclaimed Water Utilization System Permit as follows:
➢ NCS000022—Individual Stormwater NPDES Permit for discharge of stormwater flows.
➢ NC0001228—Individual NPDES Permit for discharge of treated process and sanitary
wastewaters.
➢ WQ0031317—Individual reclaimed water permit for discharge of treated sanitary
wastewater to cooling towers and a reverse osmosis treatment system, if desired.
In September 1992, the Environmental Protection Agency (EPA) issued final regulations
implementing NPDES General Permits for stormwater discharges associated with industrial activity.
The General Permit published by EPA applies in those states that do not maintain NPDES permitting
authority. For those states that do have NPDES authority (such as North Carolina), state-specific
General Permits have been developed to regulate qualified industries that discharge stormwater.
Additionally, states with NPDES authority can issue site-specific individual stormwater permits.
In North Carolina, standard industrial classification(SIC)code determines applicability to one
of their seventeen General Permits. If a facility has a SIC code not covered by one of the General
Permits, then an individual stormwater permit is issued. For the GE / GNF/ GE-H Wilmington
facility, SIC codes 3724 (Aircraft Engines and Parts), 3356 (Rolling, Drawing and Extruding of
Nonferrous Metals, except Copper and Aluminum), and 3499 (Miscellaneous Metal Work) are all
covered by the State General Permit for Fabricated Metal Products and Associated Industries.
However, because there is no General Permit in North Carolina which covers SIC code 2819
(Industrial Organic Chemicals, Not Classified Elsewhere), an individual site-specific stormwater
permit was issued by the State for the GE/GNF Wilmington facility.
The GE / GNF Wilmington individual stormwater permit (North Carolina Permit to
Discharge Stormwater Under NPDES, No. NCS000022) became effective December 1, 2014 and
expires November 3, 2014/. Note the North Carolina Permit to Discharge Stormwater Under NPDES,
No. NCS000022 renewal was submitted to the state on July 1, 2018. Under these regulations, GE /
GNF Wilmington is required to prepare and implement a Stormwater Pollution Prevention Plan
(SPPP). Brown and Caldwell assisted GE's stormwater pollution prevention team in preparing this
document.
1.2 PURPOSE OF PLAN
GE/GNF Wilmington 1-1 Stormwater Pollution Prevention Plan

SECTION].INTRODUCTION
The primary emphasis of the NPDES stormwater regulations is pollution prevention.
Implementation of this SPPP will accomplish pollution prevention by meeting three main objectives:
1. Identify the potential sources of pollution that may affect the quality of stormwater
discharges;
2. Describe and ensure the implementation of cost-effective practices to reduce
pollutants in stormwater discharges from the facility; and,
3. Ensure compliance with the terms and conditions of the stormwater permit.
The SPPP identifies potential sources of pollution that may affect the quality of stormwater
discharges associated with the facility's activities, evaluates the potential for stormwater
contamination from these sources, and presents the management practices that will be used at the
facility for reduction of pollutants in stormwater discharges.
The SPPP will be reviewed periodically to ensure that the elements of the plan are effective
and that the plan is in compliance with the terms of the permit. Modifications to the SPPP will be
made as required to reflect changing conditions at the facility.
1.3 PLAN ORGANIZATION
The SPPP has been written to follow the requirements of the site-specific stormwater permit
issued to GE/GNF/GE-H Wilmington Specific language of the permit is presented in bold italics in
the SPPP and is followed by the appropriate information necessary to meet the requirements. The
components of the permit and the corresponding sections of the SPPP are listed in Table 1-1.
GE/GNF Wilmington 1-2 Stormwater Pollution Prevention Plan

SECTION].INTRODUCTION
Table 1-1 SPPP Components
Permit Requirements Permit Section SPPP
Section
SPPP Certification and Coordination — Section 2
— Signatory Requirements Part III, Sec.B.3 2.2
— Implementation,Annual Plan Review,and Part II,Sec.A.9 and 2.3
Amendment Part II, Sec.A.7
— Pollution Prevention Team Responsibilities Part II, Sec.A.6 2.4
Site and Source Description Section 3
— General Location Map Part II,Sec.A.La 3.2
— Site Maps Part II,Sec.A.Lc 3.3
— Potential Polluant Sources Part II, Sec.A.l.c.(8) 3.4
— Facility Practices/Activities Part II,Sec.A.Lb 3.5
— History of Significant Spills or Leaks Part 11,Sec.A.Ld 3.6
Stormwater Pollution Controls Section 4
— Stormwater Management Part II, Sec.A.2 4.2
— Spill Prevention and Response Procedures Part II, Sec.A.3 4.3
— Inspections/Preventive Maintenance Program Part II,Sec.A.4 and 4.4
Part II, Sec.A.8
— Employee Training Part II, Sec.A.5 4.5
Non-Stormwater Investigation Section 5
— Certification Part 11,Sec.A.Le 5.2
Stormwater Monitoring Section 6
— General Part II, Sec.B-D 6.1
1.4 INDUSTRIAL ACTIVITIES
The following outline lists all areas in which industrial activities that are regulated under
the stormwater permit.
• Industrial plant yards
• Immediate access roads and rail lines used or traveled by carriers of raw materials,
manufactured products, waste material, or by-products used or created by the
facility
GE/GNF Wilmington 1-3 Stormwater Pollution Prevention Plan

SECTION].INTRODUCTION
• Material handling sites
• Refuse sites, sites used for the application or disposal of process wastewaters
• 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 finished products
1.5 DEFINITIONS
The EPA has defined the following definitions:
Best Management Practices (BMP) are schedules of activities, prohibitions of practices,
maintenance procedures, and other management practices to prevent or reduce the
pollution of waters of the United States. BMPs also include treatment requirements,
operating procedures, and practices to control facility site runoff, spillage or leaks, sludge
or waste disposal, or drainage from raw material storage.
CERCLA is the Comprehensive Environmental Response, Compensation, and Liability
Act. It is commonly referred to as the Superfund Act.
Clean Water Act(CWA)was formerly referred to as the Federal Water Pollution Control
Act or Federal Water Pollution Control Act Amendments of 1972.
EPCRA is the Emergency Planning Community Right-to-Know Act.
Non-Stormwater Discharges are not permitted under the general stormwater permit. The
permit does not authorize the discharge of process wastewaters, vehicle wash waters,
cooling waters, or any other wastewaters associated with the facility. Other discharges
must be addressed in a separate NPDES permit.
Point Source Discharge means a discharge from any discernible, confined, and discrete
conveyance, including,but not limited to any pipe, ditch, channel,tunnel, or conduit.
Reportable Quantities means those quantities of hazardous substances listed in Table
117.3 of The Code of Federal Regulations,40 CFR 117.
GE/GNF Wilmington 1-4 Stormwater Pollution Prevention Plan

SECTION].INTRODUCTION
Significant Material includes, but is not limited to: raw materials; fuels; materials such as
solvents, detergents, and plastic pellets; finished materials such as metallic products; raw
materials used in food processing or production; hazardous substances designated under
Section 101(14) of CERCLA; any chemical the facility is required to report pursuant to
Section 313 of Title III of SARA; fertilizers; pesticides; and waste products such as ashes,
slag and sludge that have the potential to be released with stormwater discharges.
Significant Quantity is the volume, concentration, or mass of a pollutant in a stormwater
discharge that can cause or threaten to cause pollution, contamination, or nuisance,
adversely impact human health or the environment, and cause or contribute to a violation
of any applicable water quality standards for the receiving water.
Stormwater is the runoff from a storm event, snowmelt runoff, and surface runoff and
drainage. It does not include infiltration and runoff from agricultural land.
Stormwater Associated with Industrial Activity means the discharge from any
conveyance that is used for collecting and conveying stormwater and which is directly
related to manufacturing, processing, or raw materials storage areas at an industrial plant.
The term does not include discharges from facilities or activities excluded from the
NPDES program. The term includes, but is not limited to, stormwater discharges from
industrial plant yards; immediate access roads and rail lines used or traveled by carriers of
raw materials, manufactured products, waste material, or by-products 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 40 CFR 401); 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 finished products; and areas where
industrial activity has taken place in the past and significant materials remain and are
exposed to stormwater. The term also includes stormwater discharges from all areas listed
in the previous sentence (except access roads) where material handling equipment or
activities,raw materials,intermediate product, final products,waste materials,by-products,
or industrial machinery are exposed to stormwater. Material handling activities include the:
storage, loading and unloading, transportation, or conveyance of any raw material,
intermediate product, finished product, by-product, 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 stormwater drained from the above described areas. Industrial facilities
(including industrial facilities that are Federally, State, or municipally owned or operated
that meet the description of the facilities listed in this paragraph) include those facilities
designated under 40 CFR 122.26(a)(1)(v).
1.6 INFORMATION SOURCES
Sources of information for SPPP development and implementation include the following:
GE/GNF Wilmington 1-5 Stormwater Pollution Prevention Plan

SECTION].INTRODUCTION
• USEPA stormwater hotline: [phone]
• Permit to Discharge Stormwater Under the National Pollutant Discharge
Elimination System, State of North Carolina, Department of
Environmental, Health, and Natural Resources, Division of Environmental
Management,Permit No.NCS000022, Signed December 16, 1994.
• Stormwater Management for Industrial Activities, Developing Pollution
Prevention Plans and Best Management Practices, EPA 832-R-92-006, September
1992.
• 55 Federal Register, (November 16, 1990),Preamble to Final Rule.
• 40 CFR Part 122 (Final Rule).
• 56 Federal Register, (September 9, 1992),USEPA Final General Permit.
• Guidance Manual for the Preparation of NPDES Permit Applications for
Stormwater Discharges Associated with Industrial Activity, EPA-505/8-91-002,
April 1991.
• Assessment of Non-Stormwater Discharge into Separate Storm Drainage Systems,
USEPA, 1990.
GE/GNF Wilmington 1-6 Stormwater Pollution Prevention Plan

SECTION SPPP CER TIFICA TION AND COORDINATION
SECTION 2
SPPP CER TIFICA TION A ND COORDINATION
2.1 GENERAL
There are specific regulations regarding certification of the SPPP. Additionally, regulations
have also been established specifying who is qualified to sign as a facility representative.
2.2 SIGNATORY REQUIREMENTS
For a corporation, an SPPP shall be signed by a responsible corporate officer. Part III, Section
B.3.a. (1) of the permit defines a"responsible corporate officer" as:
(a) a president, secretary, treasurer, or vice president of the corporation in charge of a
principal business function, or any other person who performs similar policy or decision-
making functions for the corporation; or (b) the manager of one or more manufacturing,
production or operating facilities employing more than 250 persons or having gross annual
sales or expenditures exceeding 25 million (in second quarter 1980 dollars), if authority to
sign documents has been assigned or delegated to the manager in accordance with corporate
procedures.
Part III, Section B.3.b of the permit states that the SPPP can also be signed by an
authorized representative for the responsible corporate officer if the authorization is made in
writing and if the representative has responsibility for the operation of the facility or for
environmental matters for the company. The Environmental COE Manager is authorized to
sign and submit all required documents pertaining to this SPPP. A copy of the delegation letter
is included at the end of this section.
The facility representative signing the SPPP is making the following certification:
Part III, Section B.3.c — "I certify, under penalty of law, that this document and all
attachments were prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system, or those
persons directly responsible for gathering the information, the information submitted is, to
the best of my knowledge and belief, true, accurate, and complete. I am aware that there are
significant penalties for submitting false information, including the possibility of fines and
imprisonment for knowing violations."
GE/GNF Wilmington 2-1 Stormwater Pollution Prevention Plan

SECTION SPPP CER TIFICA TION AND COORDINATION
2.3 IMPLEMENTATION,ANNUAL PLAN REVIEW,AND AMENDMENT
Part II, Section A.9 —Implementation. Implementation of the plan shall include
documentation of all monitoring, measurements, inspections and maintenance activities and
training provided to employees, including the log of the sampling data and of activities taken
to implement BMPs associated with the industrial activities, including vehicle maintenance
activities. Such documentation shall be kept on-site for a period of five years and made
available to the Director or the Director's authorized representative immediately upon
request.
Part II, Section A.8 —Plan Amendment and Annual Update. The permittee shall amend the
Plan whenever there is a change in design, construction, operation, maintenance or
configuration of the physical features which has a significant effect on the potential for the
discharge of pollutants to surface waters. The Stormwater Pollution Prevention Plan shall be
reviewed and updated on an annual basis.
To facilitate implementation of the SPPP and the annual SPPP review, a chronological record of
all physical changes made to the facility and changes in the operation of the facility that could impact
the stormwater quality shall be kept throughout the year. This process helps document changes made to
the facility and helps determine the effectiveness of stormwater controls that have been implemented.
Form A (attached) may be used to record the changes to the facility as they occur, and Form B
(attached) may be used to summarize the changes as part of the annual review. Completed forms shall
be kept in the yearly SPPP Compliance Notebook. The SPPP Coordinator will keep the compliance
notebook as well as the SPPP.
In summary, each year the SPPP will be reviewed for accuracy and updated to reflect any changes that
may have taken place at the facility during the previous year. The annual review will include a site
inspection to determine the applicability of the existing SPPP. Changes to the SPPP will be made as
required.
2.4 POLLUTION PREVENTION TEAM RESPONSIBILITIES
Part II, Section A.7—Responsible Party. The SPPP shall identify a specific position(s)
responsible for the overall coordination, development, implementation, and revision to the
SPPP. Responsibilities for all components of the SPPP shall be documented and position(s)
assignments provided.
At the GE / GNF / GE-H Wilmington facility, Drew Reeside is designated as the stormwater
pollution prevention team leader. His responsibilities include implementation of the SPPP, as well as
ensuring the plan is accurate, complete, and kept current. Additionally, Table 2-1 outlines positions and
responsibilities of other members of the stormwater pollution prevention team. The backup personnel
for Drew Reeside are Karen Williams and Shawn O'Connor.
GE/GNF Wilmington 2-2 Stormwater Pollution Prevention Plan

SECTION SPPP CER TIFICA TION AND COORDINATION
2.5 PLAN CERTIFICATION
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designated to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manager the system, or those persons directly responsible for gathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information, including the possibility
of fines and imprisonment for knowing violations.
Duane Wilson Date
Senior VP Manufacturing,Global Nuclear Fuels,LLC
GE/GNF Wilmington 2-3 Stormwater Pollution Prevention Plan

SECTION 2.SPPP CER TIFICA TIONAND COORDINATION
TABLE 2-1 SPPP TEAM AND RESPONSIBILITIES
Title Names Responsibility
Overall implementation of SPPP. Also, ensuring
Drew Reeside SPPP is accurate, complete, and kept current(annual
SPPP Coordinator Karen Williams review and update). In addition, issuance of email
Back-ups Shawn O'Connor reminders to SPPP team.
Analytical Sampling Quarterly sampling during permit term at three outfalls
Drew Reeside (#9, #13i, and #15i) during a representative storm
Coordinator Karen Williams event. Coordinator also responsible for reporting
Team (if any) Wood Group LLC analytical results to the NCDENR Division of Water
Quality.
Visual Monitoring: Semiannual visual monitoring and documentation at
all sixteen stormwater discharge outfalls when there is
Coordinator Drew Reeside flow. Monitoring to occur twice per year, once
Team (if any) Karen Williams between April and June, and once between
Wood Group LLC September and November. Use form tilted "SDO
Qualitative Monitoring Report". Enter all
documentation into Stormwater Database System.
Facility Inspections: Semiannual inspections and documentation of all
stormwater sources (Table 3-2 and Table 4-1), once
Coordinator Drew Reeside between April and June, and once between
AE Facilities Anthony Smith September and November. Documentation must
FCO Facilities Danny Livengood include date of inspections, maintenance activities (if
SCO Facilities Ricky Miller any), and follow-up corrective actions (if any).
FMO Facilities Bobby McLean Documentation must be entered into Stormwater
Misc. Facility Buildings Drew Holbrook Database System.
Drew Reeside Annual employee training of personnel involved in
Employee Training Karen Williams operations with the potential to contaminate
Coordinator stormwater runoff. Document all training records.
Annual visual inspection and documentation of all
Karen WilliamsNon-Stormwater Drew Reeside sixteen stormwater outfalls to ensure that there is no
Discharge Assessment non-stormwater discharges. Certain discharges are
allowed (e.g., AC condensate).
Analytical monitoring is required at outfalls
Evaluation of Oil Usage Drew Reeside discharging from vehicle maintenance areas when
from Vehicle Karen Williams more than 55 gallons of new oil per month is used
Maintenance Areas Dave Anderson when averaged over the calendar year.
Documentation must be kept to ensure facility does
not exceed this limit.
Keep SPPP current. At a minimum, on an annual
Annual Review of Drew Reeside basis review and update the SPPP.
SPPP Karen Williams
GE/GNP Wilmington 2-4 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
SECTION 3
SITE AND SOURCE DESCRIPTION
3.1 GENERAL
The GE-H Nuclear Energy / GE Aircraft Engines / Global Nuclear Fuel facility, located in
Wilmington,North Carolina in the County of New Hanover, encompasses approximately 1660 acres.
The developed portions of the facility that are addressed in this SPPP encompass approximately 342
acres. Undeveloped portions of the facility, encompassing over 1300 acres, are primarily forest or
tidal areas. The undeveloped areas are not addressed in this SPPP. However, if future development
does occur,the SPPP will be updated to incorporate this property.
3.2 GENERAL LOCATION MAP
Part I, Section A.l.a. A general location map (USGS quadrangle map or appropriately drafted
equivalent map), showing the facility's location in relation to transportation routes and
surface waters, the name of the receiving water(s) to which the stormwater outfall(s)
discharges, or if the discharge is to a municipal separate storm sewer system, the name of the
municipality and the ultimate receiving waters; and accurate latitude and longitude of the
point(s) of stormwater discharge associated with industrial activity. The general location map
(or alternatively the site map) shall identify whether any receiving waters are impaired (on
the state's 303(d) list of impaired waters) or if the site is in a watershed for with a TMDL has
been established, and what the parameters of concern are
The GE / GNF / GE-H Wilmington facility is in Wilmington, North Carolina. The facility is bordered
on the east by U.S. Highway 117, on the southwest by the Northeast Cape Fear River, and on the north
and most of the south by undeveloped forestlands. Stormwater discharges to two receiving water
bodies — the Northeast Cape Fear River and Prince George Creek.
The general location map shown in Figure 3-1 defines the facility location. Latitude and
longitude of the outfalls are presented on Table 3-1.
GE/GNF Wilmington 4-3 Stormwater Pollution Prevention Plan

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LOCATIDN MAP NPDES PERMTr NO.NCOM1228
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_may' NPERM PeraR Na.NCDM1228
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Figure 3-1,General Location Map
3.3 SITE MAPS
The Plan shall include....
Part H, Section A.l.c: A site map drawn to scale sufficient to clearly depict: the site property
boundary: the stormwater discharge outfalls; all on-site and adjacent surface waters and
wetlands; industrial activity areas (including storage of materials, disposal areas, process
areas loading and unloading areas and haul roads); site topography and finished grades, all
drainage features and structures, drainage area boundaries and total contributing areas for
each outfall, direction flow in each drainage area; industrial activities occurring in each
drainage area, buildings, stormwater Best Management Practices (BMPs); and impervious
surfaces. The site map must include a graphic scale indication and north arrow.
The Site Drainage and Significant Materials Map, Drawing No. 8002E99, provides site-specific
information regarding the physical characteristics of the facility and significant materials associated
with areas of industrial activity (including material storage areas, disposal areas, process areas, and
loading and unloading areas). A key for the significant materials noted on the figure is presented in
Table 3-2. Information provided on the map includes:
GE/GNF Wilmington 4-4 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
• Roads and buildings
• Drainage basins
• Stormwater outfalls
• Storm drain inlets
• Storm sewer lines
• Significant material locations
Two surface water bodies receive the stormwater runoff. Based on their distance from the
developed portion of the facility, these are not shown on the drawing. A portion of the runoff from the
eastern portion of the facility flows to Prince George Creek,which is approximately 5 miles north of the
facility. The Northeast Cape Fear River, located less than 1 mile west of the developed portion of the
facility,receives the majority of the stormwater, as well as all of the treated facility process and sanitary
wastewaters discharged in accordance with NPDES Permit No.NC0001228.
There are seventeen stormwater outfalls/drainage basins (1, 2, 3, 4, 5, 6, 7, 8/8I, 9, 10, 11, 12,
13/13i, 14, 15/15i, 16 and 18) for the developed areas of the facility. Note that the previous Outfall 17
was re-evaluated and found not be a true outfall. Waters from that area ultimately flow to Outfall 11.
Also, it is noted that there are two sewer outfalls (8 and 81) associated with drainage area 8. An
additional stormwater sewer line was added in 1997 during the GE90 building addition. The building
addition did not affect (add/eliminate) any potential pollutant sources, but it did result in the need to
slightly modify the sewer drainage system outside the building. As such, there is an additional
stormwater outfall (81) for drainage area 8. Outfalls 13i and 15i were added as part of the 2014 permit
to define sampling locations. 13i includes only the industrial portions of Outfall 13. 15i includes all
discharges to Prince George creek and includes waters from Outfalls 1,2,3,4,5,14 and 15. Table 3-1
identifies the latitude and longitude,total drainage area, total impervious area, and receiving water body
for each outfall.
In addition, placards have been posted at most stormwater outfalls. This ensures consistent
location evaluation during visual monitoring, outfall inspections, and non-stormwater discharge
assessments.
GE/GNF Wilmington -5 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Table 3-1: Outfall Locations
Outfall Latitude Longitude Total area Impervious area Receiving water
number (acre) N
1 34"19'12" -77"55'27" 39.8 33 Prince George Creek
2 34019'15" -77055'28" 7.9 18 Prince George Creek
3 34019'19" -77055'29" 2.8 41 Prince George Creek
4 340 19'26" -77055'36" 6.2 92 Prince George Creek
5 340 19'27" -77055'41" 4.6 18 Prince George Creek
6 34"19'24" -77"55'45" 1.3 68 NE Cape Fear River
7 340 19'24" -77055'45" 4.9 100 NE Cape Fear River
8 34"19'25" -77"55'45" 20.6 82 NE Cape Fear River
8I 340 19'26" -77055'48"
9 340 19'28" -77055'58" 37.7 55 NE Cape Fear River
10 340 19'38" -77056'4" 1.6 20 NE Cape Fear River
11 340 19'33" -77056'1" 4.1 55 NE Cape Fear River
12 34019'39" -77056'11" 21.4 48 NE Cape Fear River
13 340 19'45" -77056'29" 66.7 23 NE Cape Fear River
14 34019' -77055'30" 6.0 36 Prince George Creek
15 34"19'31" -77"55'37" 3.7 51 Prince George Creek
16 340 19'36" -77056'51" 20.3 13 NE Cape Fear River
18 34"19'46" -77056'8" 16.1 9 NE Cape Fear River
The following Outfalls are defined by the permit for sampling purposes. They are not unique
drainage areas but are subsets or combinations of the drainage areas listed above.
Outfall Latitude Longitude Total area Impervious area Receiving water
number (acre) N
13i 34"19'36" -77"56'33" 19.1 69 NE Cape Fear River
151 34019'31" -77055'39" 71.0 37 Prince George Creek
GE/GNP Wilmington 4-6 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
3.4 FACILITY PRACTICES/ACTIVITIES
The Plan shall include....
Part H, Section A.Lb - A narrative description of storage practices, loading and unloading
activities, outdoor process areas, dust or particulate generating or control processes, and
waste disposal practices.
There are three separate drainage collection systems at the facility: process wastewater, sanitary
wastewater, and stormwater. Industrial process wastewaters from the aircraft engines and nuclear energy
manufacturing operations are treated and discharged to the Northeast Cape Fear River under NPDES
Permit No. NC0001228 (Outfall 001). Domestic sewage is treated in the sanitary wastewater treatment
plant and also discharged to the Northeast Cape Fear River under said NPDES permit (Outfall 002) or
re-used on-site under the reclaim water permit WQ0031317. The stormwater drainage system collects
stormwater from the developed areas of the facility and discharges from the outfalls described in Table
3-1.
GE / GNF / GE-H Wilmington's practices and activities related to material storage and transfer
are in place to prevent and/or minimize contact of significant materials with stormwater.
Many material storage areas are covered and/or have containment curbing or grading. In some
areas, dikes are installed for additional containment around bulk storage tanks. Table 3.2 indicates the
area in which stormwater retained by the curbing or dikes is visually inspected for contaminants prior to
release.
Material loading and unloading is typically conducted in areas designed to reduce potential
contact with stormwater. Loading areas for bulk chemical transfers are either: (1) contained to allow
visual inspection of stormwater prior to release, or (2) are graded to direct stormwater to the process
drain system for treatment prior to discharge.
Direct pipeline transfers are in place for several materials and waste streams. This method of
material transfer greatly reduces the potential of stormwater contamination. Sewer manhole covers/catch
basins are color-coded to distinguish between the process, sanitary, and stormwater sewers.
3.5 POTENTIAL POLLUTANT SOURCES
The Plan shall include....
Part H, Section A.Lb........ a description of the potential pollutants that could be
expected to be present in the stormwater discharge from each outfall.
The nature of the business conducted at GE-H/GE/GNF Wilmington includes manufacture
of aircraft engine components, manufacture of reactor fuel from uranium hexafluoride,
manufacture of zircalloy components for reactor fuel bundles, assembly of reactor fuel bundles,
and manufacture of reactor auxiliary equipment. The SIC codes for the facility are 3724 (Aircraft
Engines and Parts), 3356 (Rolling, Drawing and Extruding of Nonferrous Metals, except Copper
and Aluminum), and 3499 (Miscellaneous Metal Work), and 2819 (Industrial Organic Chemicals,
Not Classified Elsewhere).
GE/GNF Wilmington -7 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
The developed portions of the facility consist of the following features:
• Manufacturing Buildings--Manufacturing operations are conducted in the
Aircraft Engines/Service Components Operation (AE/SCO) building, Fuel
Components Operation (FCO) building, Fuel Manufacturing Operations
(FMO)building, and the Dry Conversion Process(DCP) and HF buildings.
• Support buildings— Other buildings include the office buildings, site
maintenance buildings, and storage facilities.
• Wastewater treatment facilities--GENE wastewater neutralization facility,
GENE / GEAE / GNF process wastewater aerated and process basins,
GENE / GEAE / GNF sanitary wastewater treatment facility, and GNF
CaF2 warehouse buildings.
• Site grounds—Developed site grounds include paved roads, parking, outside
storage areas,recreation areas, and other landscaped areas.
The potential pollutant sources at GE / GNF Wilmington are outlined in Table 3-2; the
pollutant source location is depicted on the Site Drainage and Significant Materials Map using the
reference numbers from Table 3-2.
GE/GNF Wilmington 4-8 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Table 3-2 Significant Materials
Stmctural Control Measure Employed Management Practice
Source Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
Site Stormwater Leader
OUTFALL 1 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Drew Reeside
**Wood LLC
Site Stormwater Leader
OUTFALL 2 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Drew Reeside
**Wood LLC
SCO Building Manager
2-A SCO-Chemical Storage (east ofObldg) Liquid X Drums X X X(Valved) X David Ladd
**Ricky Miller
SCO Building Manager
2-B SCO Dumpsters(—4) (east ofObldg) Solid X Dumpsters X X X(Valved) X David Ladd
**Ricky Miller
CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
OUTFALL 3 Annual) Drew Reeside
**Wood LLC
AE-5,000-gal Used Oil AE AE Maintenance Leader
3-A Tank (east of bldg) liquid X Tank X X X X(Valved) X Chris League**
Anthony Smith
AE-6,000-gal Used Oil AE Double-walled AE Maintenance Leader
3-B Double-Walled Tank (east of bldg) Dgmd X Tank X Double-walled tank X(Valved) X(double-walled tank) Chris League**
Anthony Smith
AE Maintenance Leader
3 C AE-10 000-gal Used Oil AE X Double-walled **Chris League
Double-Wall liquid Double-Walled Tank (east of bldg) Tank X Double-walled tank X(Valved) X(double-walled tank) Anthony Smith
AE-300-gal Used Oil AE AE Maintenance Leader
3 D Evaporator (east of bldg) Liquid Tank X \ X(Valved) X Chris League
**AnthonySmith
AE Maintenance Leader
3-E AE Dumpsters(9) (east of bldg) Solid X Dumpster X X X(Valved) X Chris League
**,',,ffiony Smith
Site-2200-gal Diesel Fuel AE Double-walled Site Maintenance Manager
3-F Tank-Generator (east of bldg) Liquid X Tank X X(Valved) X(double-walled tank) Dave Anderson
**Mike Phipps/Jeff Hollis
GE/GNF Wilmington 4-3 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
OUTFALL 4 Annual) Drew Reeside
**Wood LLC
Site Stormwater Leader
OUTFALL 5 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Drew Reeside
**Wood LLC
AE AE Maintenance Leader
5-A AE—Oil Storage Building (North of bldg.) Liquid X D��g X X X X X X **Chris League
Anthony Smith
AE AE Maintenance Leader
5-B AE Dumpsters(5) (north of bldg) Solid X Dumpsters X X X X Chris League
**Anthony Smith
AE AE Maintenance Leader
5-C AE North Cooling Tower (north of bldg) liquid Cooling Tower X X X Chris League
**Anthony Smith
OUTFALL 6 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
Annual) Drew Reeside
**Wood LLC
Site Maintenance Manager
6-A AE Mundy Dumpsters AE Solid X Dumpsters X X X X Dave Anderson
(West of bldg) **Mike Phipps/Jeff Hollis
OUTFALL 7 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Site Stormwater Leader
Drew Reeside
**Wood LLC
AE Maintenance Leader
7 A AE-(2)Ethylene Glycol AE Liquid X Tanks(2) X X X X Chris League
Tanks (north of bldg) **Anthony Smith
AE Maintenance Leader
7-B AE—Cooling Tower AE Liquid X Cooling Tower X Chris League
(north of bldg) **Anthony Smith
Computer Room AE Tank—double X X Site Maintenance Manager
C Emergency Generator (north of bldg) Liquid X wall X l Dave Anderson
Double Wall Tank **Mike Phipps/Jeff Hollis
GE/GNF Wilmington 4-4 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
OUTFALL CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
8/8I Annual) Drew Reeside
**Wood LLC
Metal Chips in Dumpster AE AE Maintenance Leader
8-A (under roof) (NW of Bldg) Solid X Dumpster X X X Return to process X Chris League
**Anthony Smith
AE-Waste Macro Etch AE Tank(Out of N/A AE Maintenance Leader
g)
8-B Tank Liquid Tank out of X X X X(since not in service) Chris League
Out o Service) (west of bldg) Service) service **AnthonySmith
SCO-20,000-gal Waste N/A SCO Building Manager
(westt o of g)
8-C Coolant/Red Dye Tank Liquid Tank(Out of Tank out of X X X X(since not in service) David Ladd
(Out of Service) f bldg) Service) service **Ricky Miller
AE Maintenance Leader
8-D SCO Cafe Dumpsters(3) (west of bldg) Solid X Dumpster X X(2) closed) X X Chris League
**Anthony Smith
Jason King8-E SCO Cafeteria Grease SCO Liquid X Metal Bin X X X X Site DaveAnderson nance nager
Accumulation Bin (west of bldg)
**Mike Phipps/Jeff Hollis
West of GE-90 AE Maintenance Leader
8-F Propylene Glycol Tanks Bldg. Liquid X Tanks X X X X X Chris League
**Anthony Smith
West of GE-90 AE Maintenance Leader
8-E Cooling Tower Bldg. Liquid X Cooling Tower X X X X Chris League
**Anthony Smith
OUTFALL 9 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
Annual) Drew Reeside
**Wood LLC
X(containment FCO Building Manager
A FCO-2,000-gal Sodium FCO Liquid X Tank X X X X X(to pumped back to Jason King
Hydroxide Solution Tank (north of bldg) process) process or Waste Danny Livengood
NaOH tank **Phil Dou hman
FCO-(2)4,800-gal&(2) X(containment FCO Building Manager
9-B 8,400-gal Waste Etch Acid FCO Liquid X Tanks(4) X X X X X X(to pumped back to Jason King
Tanks(4 total) (north of bldg) process) Waste Acid tank) Danny Livengood
**Phil Dou hman
C FCO-14,000-gal Waste FCO Liquid X Tank X X X \ X X(to X(containment FCO Building Manager
Coolant Tank (north of bldg) process) pumped back to Jason King
GE/GNF Wilmington -S Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
tank) Danny Livengood
**Phil Doughman
X(containment FCO Building Manager
FCO-5,000-gal Nitric Acid FCO X(to Jason King
-D Tank (north of bldg) Liqu d X Tank X X X X X process) Pumped back to Danny Livengood
Waste Acid tank) **Phil Doughman
FCO-5,000-gal X X X X(containment FCO Building Manager
9-E Hydrofluoric Acid Tank FCO quid X Tank—double X X X(to pumped back to Jason King
(north of bldg) wall process) Danny Livengood
Double Wall Tank Waste Acid tank) **Phil Doughman
FCO-5,000-gal Waste FCO Building Manager
9-F Sodium Hydroxide Solution FCO Liquid X Tank X X X X X X(to process) Jason King
Tank (north of bldg) Danny Livengood
**Phil Doughman
X(containment FCO Building Manager
G FCO-2,000-gal Alkaline FCO Liquid X Tank \ X X X X(to pumped back to Jason King
Cleaner(15/o)Tank (north of bldg process) process or Waste Danny Livengood
NaOH tank) **Phil Doughman
X(containment FCO Building Manager
FCO-400-g al Nitric Acid FCO X to Jason Kin
9-H Tank (north of bldg) Liquid X Tank X X X X X pro ess) Pumped back to Danny Livengood
Waste Acid tank) **Phil Doughman
X(containment FCO Building Manager
FCO-50-gal Hydrofluoric FCO X(to Jason King
9-I Acid Tank (north of bldg) Liquid X Tank X X X X X proccss) Pumped back to Danny Livengood
Waste Acid tank) **Phil Doughman
FCO Building Manager
J FCO-Alkaline Cleaner FCO Solid X Drums on X X X X(to process) Jason King
(NaOH)Drums(-12) (north of bldg) Pallets Danny Livengood
**Phil Doughman
FCO Building Manager
K FCO-Scrap Metal FCO Solid X Dumpster X X X(to Jason King
Dumpster(s) (north of bldg) process) Danny Livengood
**Phil Doughman
FCO Building Manager
L FCO-Zircaloy Chips in FCO Solid X Drums with lids X X X X Jason King
Drums(2)(not in service) (north of bldg) on pallet Danny Livengood
GE/GNF Wilmington 4-6 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
9-M Source removed
Site-1700-gal Diesel Fuel Site Site Maintenance Manager
9-N Tank-Generator (east of FMO Liquid X Tank X X X X Dave Anderson
bldg) **Mike Phipps/Jeff Hollis
Site-Flammable Site Site Maintenance Manager
9-0 Liquid/Paint Storage (west of Site liquid X Cans in Building X Now contained in above ground building—no stormwater exposure Dave Anderson
Building Maint.) **Mike Phipps/Jeff Hollis
Site-119-0 Diesel Fuel
Site Tank—double X X(drain Site Maintenance Manager
9-1) Tank-Generator (at Water Liquid X wall X X open) Dave Anderson
Tower) Double Wall Tank **Mike Phipps/Jeff Hollis
Site-210- al Diesel Fuel Site Tank—double X Site Maintenance Manager
9-Q g (at Water Liquid X X X X Steve Riemersma
Tank-Generator Tower wall Double Wall Tank **Mike Phi s/David Allen
Site Maintenance Manager
9-R NU Cafe Dumpster New Cafeteria Solid X Dumpster X X X X Dave Anderson
**Mike Phipps/Jeff Hollis
FCO Building Manager
9-S FCO West Dumpsters(-3) FCO(West of Solid X Roll-off X X X Jason King
building) Danny Livengood
**Phil Dou hman
SIC Nuclear Site Maintenance Manager
9-T NE SIC Dumpster Yard Solid X Dumpster X X X Dave Anderson
**Mike Phipps/Jeff Hollis
FMO Building Manager
9-U FMO East Dumpsters(-2) Near east fence Solid X Dumpster X X X X Doug Nay
Bobby Mclean**
FMO South Dumpsters South central FMO Building Manager
9-V (-2) wall of FMO Solid X Dumpster X X X Doug Nay
Bobby Mclean**
North side of Cooling Tower Site Maintenance Manager
9-W FCO HVAC Cooling Tower FCO Liquid X Sum X X X X Dave Anderson
P **Mike Phi s/Jeff Hollis
FCO Building Manager
X FCO Process Cooling North Central Liquid X Cooling Tower X X X Jason King
Tower side of FCO q Sump (To Process) Danny Livengood
**Phil Dou hman
GE/GNF Wilmington -7 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
East side of Cooling Tower Site Maintenance Manager
9-Y FMO East Cooling Tower FMO Liquid X Sump,Plastic X X X X X Dave Anderson
Tanks **Mike Phi s/Jeff Hollis
South of new Metal Bin,w/ Site Maintenance Manager
9-Z NU Cafe Grease Bin Liquid X lid containment X X X X X Dave Anderson
cafeteria tote **Mike Phipps/David Allen
South of HF Cooling Tower Site Maintenance Manager
9-AA DCP Cooling Tower Building Liquid X Sump,Plastic X X X X X Dave Anderson
**Alike Mike Phi s/Jeff Hollis
FMO Building Manager
9-BB FMO IT Dumpster South of FMO Solid X Dumpster X X X Doug Nay
Bobby Mclean**
CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
OUTFACE 10 Annual Drew Reeside
) **Wood LLC
Site Site Maintenance Manager
10-A Site-Sulfuric Acid Tank (east of aeration Liquid X Tank X X X X(diked area) X(diked area) Dave Anderson
basin) **Mike Phipps/Jeff Hollis
Site Site Maintenance Manager
1 p I3 Site-Sulfuric Acid Totes (east of aeration Liquid X Totes X X X ro(es Dave Anderson
(up to 4) basin) process) **Mike Phi s/Jeff Hollis
CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
OUTFALL 11 Annual) Drew Reeside
**Wood LLC
Site Site Maintenance Manager
Site-Scrap Metal/Recycle Dumpster,roll
11-A Dumpsters(-10) (south of Solid X off X X X Dave Anderson
recycle) **Mike Phipps Jeff Hollis
Site Maintenance Manager
11-B Seavan Area Dumpster Seavan Area Solid X Roll off X X X Dave Anderson
**Mike Phipps/Jeff Hollis
Site-4,000-gal Gasoline& Site Site Maintenance Manager
11-C 500-gal Diesel Fuel Tanks (north of Liquid X Tanks(2) X X X X X Dave Anderson
warehouse) **Mike Phipps/Jeff Hollis
Site-Chemical Receiving-
Site No runoff from X Only runoff is from Site Maintenance Manager
11-D Stored Inside Building (west of Various X Various X storage;Inside X building access X Dave Anderson
warehouse) Bu ld n **Mike Phi s/eff Hollis
Sourcing-Chemicals stored West of Liquid or Sourcing Manager
11-E outside warehouse Sourcing Solid X Various X X X Scott Rasmussen
Warehouse **Rich Lambert
GE/GNF Wilmington 4-8 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
West of Site Maintenance Manager
11-F Sourcing Dumpster Sourcing Bldg **Solid X Dumpster X X X Dave Anderson
Mike Phipps/Jeff Hollis
CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
OUTFALL 12 Annual) Drew Reeside
**Wood LLC
Site-RCRA Haz Waste Site No runoff from Logistic Manager
X(Only runoff is from
12-A Storage (Inside Controlled (west of Liquid X Drums X storage;Inside X X Andreas Hepner
Access Building) warehse Buildingloading/unload unloading) **ames Mathews
Site-Chemical and Oil Site Liquid& Drums/ No runoff from Sourcing Manager
X(Only runoff is from
12-B Storage (Inside Controlled (west of X X storage;Inside X X Darion Jeralds
Access Building) warehse) Granular Bags/Cans Building loading/unloading)
FMO-(3)Nitric Acid
FMO(south- None-
FMO Building Manager
12-C Tanks(not in use) west of FMO Empty Tanks(3) X X X(to process) Doug Nay
bldg) Bobby Mclean**
FMO(south- FMO Building Manager
12-D FMO-Salt Brine Tank west of FMO Resin X Tank X Double-walled tank X X(to process) Doug Nay
bldg) Bobby Mclean**
FMO-Ammonium FMO(south- FMO Building Manager
Fluoride Sol'n Tank Tank(Out of N/A
12-E (V106) west of FMO None Service) Tank out of service X X X(to process) Doug Nay
Out of Service bldg) Bobby Mclean**
FMO-Ammonium Nitrate FMO(south- FMO Building Manager
Sol'n Tank Tank(Out of N/A
12-F (V103) west of FMO liquid Service) Tank out of service X X X(to process) Doug Nay
(Out of Service) bldg) Bobby Mclean**
FMO-Aqua Ammonia FMO(south- N/A FMO Building Manager
12-G Tank west of FMO Liquid Tank(Out of Tank out of X X X(to process) Doug Nay
(Out of Service) bldg) Service) service Bobby Mclean**
FMO-(2)Hydrofluoric FMO(south- N/A FMO Building Manager
12-H Tanks west of FMO Liquid Tanks(Out of Tank out of X X X(to process) Doug Nay
(Out of Service) bldg) Service) service Bobby Mclean**
FMO-Temporary Storage FMO(south- I I I FMO Building Manager
12-I of Uranium Compounds in west of FMO Granular X Cans X X X Doug Nay
Cans wrapped in plastic bag bldg) Bobby Mclean**
GE/GNF Wilmington 4-9 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
FMO-600-Gal Used Oil FMO(west of BFMO FMO Building Manager
12 J Incinerator Tank FMO bldg) liquid X Tanks X X X X g X Doug Nay
g) Manager Bobby Mclean**
FMO Building Manager
12-K FMO-(2)Diesel Generators FMO(west of Liquid X Reservoir X X X Drains to Containment for X Doug Nay
(55-gal oil reservoir/each) FMO bldg) Source 12-0 Bobby Mclean**
FMO-Uranium FMO(west of FMO Building Manager
12-L Compounds in cylinders. FMO bldg) Solid X Steel cylinder X X X Doug Nay
Bobby Mclean**
FMO-500-gal Fuel Oil FMO Building Manager
)
12-M Double-Walled Tank-To FMO(west of Liquid X Double-walled X Double-walled tank l X(double-walled tank) Doug Nay
Generator(elevated) FMO bldg Tank Bobby Mclean**
FMO-Oil/Lubricant FMO(west of FMO Building Manager
12-N Drum Storage FMO bldg) liquid X Drums X X X X X Doug Nay
Bobby Mclean**
FMO-20,000-Gal Fuel Oil FMO(west of FMO Building Manager
12-0 &565-gal Kerosene Tanks FMO bldg) liquid X Tanks(2) X \ X \ X Doug Nay
Bobby Mclean**
12-P Source Removed
FMO(west of FMO Building Manager
12-R FMO West Dumpsters bldg) Solid X Dumpster X X X Doug Nay
Bobby Mclean**
12-S FET Dumpster West of FET Solid X Dumpster X X X X FET Building Manager
Bldg Chandler King
West side of Cooling Tower Site Maintenance Manager
12-T FMO West Cooling Tower FMO Hgmd X Sump,Plastic X X X X X Dave Anderson
Tanks **Mike Phipps/Jeff Hollis
South side of Cooling Tower FMO Building Manager
12-U Incinerator Cooling Tower Incinerator Liquid X Sump,Plastic X X X Doug Nay
Tanks Bobby Mclean**
GE/GNF Wilmington 4-10 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
OUTFALL 13 Annual) Drew Reeside
**Wood LLC
OUTFALL CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi- Site Stormwater Leader
13i Annual) Drew Reeside
**Wood LLC
WT-Treated Hydrofluoric Wa FMO Building Manager
13-A01 Tank UR Treat Liquid X Tank X X X X X(to process) Doug Nay
(Wl,V-900) Bobby Mclean**
WT-Hydrated Lime Tank Waste Treat/ Powder& FMO Building Manager
13-A02 (WT V-118) URLS Slurry X Tank X X X X(to process) Doug Nay Bobby Mclean**
WT-Treated Plating&
Etch Sludge Tanks Waste Treat/ SludgeTanks(Out of N/A ` FMO Building Manager
13-A03 (�V-115/V-113) URLS Service) Tanks out of service X X(to process) Doug Nay
(Out of Service) Bobby Mclean**
13-A04 Source Removed
WT-Calcium Fluoride Waste Treat/ No runoff;Inside FMO Building Manager
13-A05 (treated HF)-Loaded URLS Filter Cake Truck Trailer X Building X X X(to process) Doug Nay
Inside Building Bobby Mclean**
WT-Ammonium Nitrate FMO Building Manager
Waste Treat/ X(return to
13-A06 Solution in Sump URLS liquid Truck Sump X N nitrate basins) X(to basins) Doug Nay
(out of service) Bobby Mclean**
13-A07 Source Removed
WT-Calcium Fluoride Wa FMO Building Manager
13-A08 Sludge in Basins UR Treat Sludge N Basins(2) X X X X(to process) Doug Nay
(empty,out of service) Bobby Mclean**
13-A09 Source Removed
GE/GNF Wilmington 4-11 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
WT-Ammonium Nitrate FMO Building Manager
13-A10 Solution in Basins Waste Treat/ Liquid X Basins(2) X X X X(to process) Doug Nay
(out of service) URLSBobby Mclean**
13-A13 Source removed
13-A14 Source Removed
WT-Hydrofluoric 10% Wa FMO Building Manager
13-A26 Solution Tank UR Treat Liquid X Tank X X \ X X(to process) Doug Nay
(WT V-800) Bobby Mclean**
WT-Ammonium Nitrate
Solution Tank Waste Treat/ I t Tank(Out of N/A FMO Building Manager
13-A27 WT V-104) URLS gmd Service) Tank out of service h X X(to process) Doug Nay
Out o Service Bobby Mclean**
WT/URLS-South
Emergency Control Valve Waste Treat/ X (Can FMO Building Manager
13-B1 (Not a Source;This is a URLS N/A N/\ N/A N/A X ` be Closed) X Doug Nay
Bobby Mclean**
Control
WT/URLS-West
Emergency Control Valve Waste Treat/ X (Can FMO Building Manager
13-B2 (Not a Source;This is a URLS N/A N/A N/A N/A X X be Closed) X Doug Nay
Bobby Mclean**
Control
WT/URLS-East
Emergency Control Valve Waste Treat/ X (Can FMO Building Manager
13-B3 ( Tot a Source;This is a URLS N/A N/A N/A N/A X be Closed) X Doug Nay
Bobby Mclean**
Control
Metal Boxes FMO Building Manager
13-C WT-Uranium Compound South/Southeast Solid X Wood Boxes X X X Doug Nay
/Waste Box Storage of Waste Treat Metal Cans Bobby Mclean**
FMO Building Manager
13-D Site-285-Gal Diesel Fuel Site(east of fire Liquid X Tank X X X X Doug Nay
Tank @ Fire Pond pond) Bobby Mclean**
GE/GNF Wilmington 4-12 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
13-E WSFC Dumpsters(-4) WSFC Solid X Dumpster X X x WSFC Building Manager
Chandler King
Site Stormwater Leader
OUTFALL 14 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Drew Reeside
**Wood LLC
Site Stormwater Leader
OUTFALL 15 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Drew Reeside
**Wood LLC
OUTFALL Site Stormwater Leader
15i CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Drew Reeside
**Wood LLC
Site Stormwater Leader
OUTFALL 16 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Drew Reeside
**Wood LLC
Site Stormwater Leader
OUTFALL 18 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual) Drew Reeside
**Wood LLC
Closed Site Maintenance Manager
18-A Dried/Treated Sludge Process Lagoon Solid X supersack with X X Steve R emersma
(Sources moved) Basin Site internal plastic liner **Mike Phipps/David Allen
Process Lagoon Site Maintenance Manager
18-B Basin Site Dumpster Basin Site Solid X Dumpster X X X X Dave Anderson
**Mike Phipps/Jeff Hollis
18-C Source Removed
Sanitary Sludge Filtrate Process Lagoon 1000G Filtrate Site Maintenance Manager
18-D liquid X X X X Dave Anderson
(Not n service) Basin Site Tank
**Mike Phi s/eff Hollis
Sanitary Sludge Process Lagoon Site Maintenance Manager
18-E (Not in service) Basin Site Liquid X 6000 G Tank X X X Dave Anderson
**Mike Phi s/eff Hollis
Wastewater Process Lagoon To Sanitary Site Maintenance Manager
18-F (Not in service) Basin Site liquid X —2000G Tank X X Waste Dave Anderson
**Mike Phi s/eff Hollis
Sanitary Sludge Process Lagoon I To Sanitary Site Maintenance Manager
18-G Liquid
(Not in service) Basin Site Waste
**Mike Phipps/Jeff Hollis
GE/GNF Wilmington 4-13 Stormwater Pollution Prevention Plan

SECTION 3.SITE AND SOURCE DESCRIPTION
Structural Control Measure Employed Management Practice
Source I Significant Physical Load or Destin.of SW Runoff Method of SW Release RESPONSIBILITY
Number Building Store Container
Materials Form Access Dike Curb Roof Hold/Visual Manager/Leader
Storm Drain Process WW Direct Inspection **Inspector
Drain Before Release (as of September 2011)
18-H Source Removed
18-I Source Removed
Process Lagoon Covered Site Maintenance Manager
18 J Filter Cake Drying Beds Solid X X \ X X Dave Anderson
Basin Site buildings **
Mike Phi s/eff Hollis
Raw Sanitary Sewage Process Lagoon Liquid/
Site Maintenance Manager
18-K (Not in service) Basin Site Slurry X Plastic Tank X X X X Dave Anderson
**Mike Phipps/eff Hollis
1 "Current Key Number"is denoted by a number(which corresponds to the outfall in which the material is located)and a letter(which corresponds to the individual material). Material location is depicted on drawing#8002E99
Note: No significant materials are present in outfalls 1,4,14,15 or 16. Outfall 17 removed.
Note: All significant materials in the vicinity of the Waste Treatment Facility(Outfall 13)are denoted as"13A"due to the number of materials in this area.
GE/GNF Wilmington 4-14 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
3.6 HISTORY OF SIGNIFICANT SPILLS OR LEAKS
The Plan shall include....
Part II, Section A.Ld-A list of significant spills or leaks of pollutants that have occurred at
the facility during the 3 previous years and any corrective actions taken to mitigate spill
impacts.
According to interviews with GE/GNF/GE-H Wilmington environmental staff,there have been
no significant spills or leaks of pollutants at the GE/GNF/GE-H Wilmington facility during the past 3
years. Several small spills of clean process water did occur in 2015 2016 and 2017. See the respective
SWPPP notebooks for details. A summary of the following spills occurring in 2018 are outlined below
and were included in the semi-annual Stormwater Discharge Outfall Reporting included in this
notebook.
1 st Half 2018 -During this stormwater reporting period,we've experienced several releases that are
reportable per our permit NCS000022. These leaks were primarily from the CaF2 discharge pipe. Most
of the releases described occurred over permeable surfaces and did not result in flow through
stormwater systems.
Investigations revealed that the CaF2 discharge pipe was significantly damaged by freezing water
during the extreme cold experienced in early January,2018. Water was not drained from the pipe prior
to the cold weather and sections of the heat tracing were found to be inoperative. The liquid that flows
through this line is primarily filtered water from an HF neutralization system and water from area
stormwater containments. Potential parameters of concern in this area include pH,Uranium, fluorides
and possibly nitrogen containing compounds such as nitrate,nitrite and ammonia. Listed below is a
summary of the events related to this pipe.
Date Event
1/17/2018 A flange gasket blew out near the CaF2 discharge pump when the pump was started at
10:20 am. The pump was turned off immediately,but the system continued to leak at
10-15 gpm for 60 minutes before a downstream containment valve was shut. Liquid
continued to leak through the containment valve at about 3 gpm for 30 minutes until a
drain plug was installed. Liquid then collected on an impermeable surface and was
pumped back to the source lagoon. Total quantity lost: — 800-990 gallons. A sample
collected(#6318049) at 11:40 and the sample results were:
pH: 6.2 s.0 U <0.02 mg/L Ammonia 1.06 mg/L
Fluoride 10 mg/L Nitrate <0.2 mg/L Nitrite <0.1 mg/L
The flange gasket was repaired on 1/18/18.
1/19/2018 CaF2 pump was started at 11:00. At 11:20,a leak was discovered in the pipe several
hundred yards downstream and the pump was immediately stopped. Inspection of the
area showed the pipe had a large crack. This material is the same as was sampled on
1/17. A walkdown inspection of the pipe was performed and two more,much smaller
cracks were found. Estimated volume from all 3 leaks was<500 gallons. All leaked
to permeable surfaces. Water accumulation was noted in the ditch near the first leak
but not at the other 2 leaks. The pipe was shut down for repair and further inspection.
2/1/2018 CaF2 pipe repairs completed. Pipe was pressurized with potable water and inspected
GE/GNF Wilmington 4-1 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
and no leaks were found. Started CaF2 pump at 11:00 am. 30 minutes later, a
spritzing leak was reported from an inaccessible high line portion of the pipe. The
pump was shut off immediately. The leak sprayed onto an impermeable surface. No
ponding or runoff was noted. Estimated spill<<25 gallons. Results from sample
taken(#6337422)were:
pH: 6.7 s.0 U <0.02 mg/L Ammonia <0.51 mg/L
Fluoride 9.1 mg/L Nitrate <0.2 mg/L
4/23/2018 CaF2 pump started at 7:30am. At 7:40,guards notified operations of a leak. Pump
shut off immediately. Results from sample taken(6402961)were:
pH: 8.9 s.0 U<0.02 mg/L, NH3 <0.51 mg/L
Fluoride 9.5 mg/L Nitrate<0.2 mg/L Nitrite<0.1 mg/L
Investigation revealed a failure of the repair performed after the 2/1/2018 event. Line
was repaired and put back in service.
There have been no further issues with the CaF2 discharge pipe since this repair was completed.
There was one other leak during this reporting period—also believed related to the extreme cold
weather.
On 1/24/2018, a dripping leak was found on the cooling loop feeding the ATC1 west chiller. This was a
small,dripping leak at a cracked nipple in the pipe. An estimated 50 gallons of closed loop cooling
water dripped to a grassy area. No ponding or water accumulation was noted. The leak was discovered
at 3:15 pm and was repaired within 30 minutes.
2nd Half 2018
On September 15,during Hurricane Florence,there was a release of oily water/coolant from the
Aviation evaporator containment area. Water from the large quantities of rain which accumulated in the
containment pad overflowed and carried some residual oil water and coolant onto a non-permeable
surface. The event was quickly identified, and operators placed the spill mat over a nearby storm drain
near Outfall 003 and used a sump cleaner vacuum to clean up the spill and rain water. None of the oily
water and coolant flowed through a storm water conveyance nor did it reach waters of the state. The
overflow was believed to be less than 25 gallons and due to the lack of volume or environmental risk,no
formal notifications were required at the time.
During the heavy rains from Hurricane Florence on Saturday, September 15,the Sanitary plant levels
reached near the top of the basins and dilute sanitary material splashed out. The ORC made berms
around the tanks with the marl in the area and captured most of the material that got out of the
tanks. There was a slight brown tint to the rainwater that went to stormwater ditch and it is believed
—1500 gals of diluted sanitary waste was release. A notification to the state was made on Monday,
September 17th.
Additionally, both incidents were reported to Jenne Walker with the Hazardous Waste Section of NC
DEQ during a call she placed to the site as a follow-up to the hurricane on Monday, September 17'.
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SECTION 4.STORMWATER MANAGEMENT CONTROLS
SECTION 4
STORMWA TER MANAGEMENT CONTROLS
4.1 GENERAL
The EPA has not established stormwater effluent limitation guidelines. Instead, the focus of the
stormwater regulations is to control pollutants at the source rather than end-of-pipe treatment.
Implementation of at-source stormwater pollution controls will reduce the quantity of pollutants in the
stormwater runoff. Source controls are usually the most effective mechanisms for decreasing
stormwater contamination and are typically less expensive than constructing end-of-pipe treatments.
North Carolina is an NPDES approved state with the authority to write general and site-specific
individual permits. An individual permit was issued for GE / GNF / GE-H Wilmington. The intent of
the stormwater regulations will be followed by implementing appropriate stormwater controls to reduce
the risk of stormwater contamination. Best management practices (BMPs) and other forms of
stormwater controls will also be implemented to ensure pollution prevention with regard to future
operations.
4.2 STORMWATER MANAGEMENT
The Plan shall include....
Part H, Section A.2 —Stormwater Management Plan. The stormwater management plan shall
contain a narrative description of the materials management practices employed which
control or minimize the exposure of significant materials, including structural and
nonstructural measures.
Stormwater management controls are often classified as either source controls or end-of-pipe
treatment controls. Both types of controls reduce the amount of pollutants in the stormwater discharge.
Source controls minimize the contact of stormwater with potential pollutants. The overall intent
of the NPDES stormwater regulations is to improve the quality of stormwater discharges by eliminating
or reducing the exposure of stormwater to potential contaminants. Examples of source controls include:
good housekeeping, improved material handling techniques, secondary containment, and covering of
potential pollutant areas.
End-of-pipe controls can be either structural or nonstructural. They are used to remove a
pollutant after it has already entered the stormwater. Examples include oil/water separators, catch
basins, and grassy swales.
Controls should be selected for implementation based upon their effectiveness and cost. Where
applicable source controls should be used. End-of-pipe controls should be used in situations where
stormwater is required to be treated. The selection of controls is discussed in the following sections.
GE/GNF Wilmington 4-1 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
4.2.1 Existing Management Practices
Stormwater management controls presently in use at the facility are listed in Table 4-1. Details of
structural and non-structural stormwater controls are provided for each significant material and outfall
discussed in Section 3.
4.2.2 Future Management Practices
To further reduce the risk of stormwater contamination, additional controls are planned. These
additional controls include elimination or reduction of stormwater exposure to significant materials and
industrial activities by: (1) providing secondary containment, (2) modifying operations and/or storage
practices, and(3)best management and good housekeeping practices.
Additionally,the permit requires the following:
Part II, Section A.2.b - If the secondary containment devices are connected directly to
stormwater conveyance systems, the connection shall be controlled by manually activated
valves or other similar devices [which shall be secured with a locking mechanism] and any
stormwater that accumulates in the containment area shall be at a minimum visually
observed for color, foam, outfall staining, visible sheens and dry weather flow, prior to
release of the accumulated stormwater. Accumulated stormwater shall be released if found to
be uncontaminated by material stored within the containment area. Records documenting
the individual making the observation, the description of the accumulated stormwater and the
date and time of the release shall be kept for a period of five years.
Locking mechanisms will be confirmed/installed at all secondary containment devices connected
directly to the stormwater conveyance system. Regarding accumulated stormwater, Form C (attached)
can be used to record the results of the visual inspection of accumulated stormwater prior to release. A
summary report should be retained in the yearly SPPP Compliance Notebook.
4.3 SPILL PREVENTION AND RESPONSE PLAN
The Plan shall include....
Part H, Section A.3 -Spill Prevention and Response Plan. The Spill Prevention and Response
Plan shall incorporate an assessment of potential pollutant sources based on a materials
inventory of the facility. Facility personnel(or team) responsible for implementing the SPRP
shall be identified. A responsible person shall be on-site at all times during facility operations
that have the potential to contaminate stormwater runoff through spills or exposure of
materials associated with the facility operations.
Potential Pollution Assessment: An initial risk assessment of potential pollutant sources was
done with the implementation of the SPPP. This SPPP revision attempts to update, expand, and provide
a more objective method for conducting a risk assessment.
Each of the potential pollutant sources shown in Table 4-1 were ranked from 1 to 3 in the
following three areas: A) Potential for exposure to stormwater (likelihood of container failure and
material transfer frequency should be considered here, B) Quantity of material stored, and C) Level of
structural and non-structural controls. Each area was evaluated as follows:
GE/GNF Wilmington 4-2 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
A)Potential for Exposure- 1 —(Low)Ex: Covered by roof
2—(Med)Ex: Bulk storage tanks or unopened drums outside
3—(High)Ex: Uncovered dumpster, opened drums stored outside
B)Quantity stored- 1 —(Small)Ex: less than 1 gal or uncontaminated solids or dumpster
with clean wood/office trash or source not in service
2—(Med)Ex: 1 to 55 gallon containers or dumpster with shop trash or
shop metals
3—(Large)Ex: Bulk storage tanks(>55 gal)
C)Level of Controls - 1 —(High)Ex: Secondary containment
2—(Med)Ex: Closed valve,process drain,curbs, or totally enclosed
(bags)
3—(Low)Ex: none,grading only,curbing not sized for 25 year/24 hour
storm
Then each potential pollutant source was given a red, yellow, or green status based on the risk
product(RP) of A,B, and C:
RP Status
1-6 Green
7-12 Yellow
13-27 Red
Potential pollutant sources with a red status should be reviewed annually with each SPPP update
and action taken toward achieving a green or yellow status.
It is noted that the material handling sites present the greatest risks for potential spills. To prevent
spills of raw materials, trucks and other containers should not be overfilled. Care will be used when
transferring these materials between areas. Hoses and connections will be checked periodically for
corrosion or wear and replaced as needed.
Responsible Person: The person or persons responsible for implementing the SPRP are identified
in Table 4-1 for each potential pollution source. The responsible person on-site always will be the
Acting Emergency Director as defined in the site Radiological Contingency & Emergency Plan
(RC&EP).
Spill Detection: Bulk oil, chemicals and other contaminants sources are either in heavily
populated areas, regularly inspected, or have stormwater containment structures that are inspected after
rain events. Because of this, seepage from a source is identified and reported quickly. Continued
identified seepage from a bulk facility is not tolerated.
The final plant effluent channel collects much of the stormwater from across the site and is
inspected daily (excluding weekends and holidays). This frequency of observation combined with the
engineering and procedural controls provides adequate assurance of effluent quality.
Spill Response: Response to significant spills will performed per the "Radiological Contingency
& Emergency Plan", Section 2, Environmental — Chemical / Toxic Hazards. The RC&EP contains
detailed procedures for response and notification.
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SECTION 4.STORMWATER MANAGEMENT CONTROLS
For smaller spills, sorbent materials and other emergency response equipment are kept throughout
all buildings. Additionally,the Emergency Control Center(ECC)building and site warehouse maintain
substantial emergency equipment and materials to address spills across the facility.
GE/GNF Wilmington 4-4 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
General guidelines for a spill event are outlined as follows:
1. If conditions are HAZARDOUS or not completely understood(for example, fire,potential
explosion or unknown chemical release):
• DO NOT APPROACH. Call the ECC at x-5555 or pull the nearest fire alarm box.
2. If the spill is known to be NON-HAZARDOUS:
• Stop the source of the spill immediately. Close the valve, shut down pumping,or take
whatever actions are possible to stop any release.
• Use booms or sandbags,dig small trenches,or place absorbent pads or pigs to stop the
spread.
• To help with spill response and to determine if any offsite agency needs to be notified,
contact one of the following as soon as reasonably possible(but no later than 1 hour after
the spill is discovered):
- Emergency Control Center at(910) 819-5555
- Manager,Environmental Protection&Industrial Safety(Ray Crott) at(910)200-9711
- Manager, Facilities Engineering and Site Maintenance (Dave Anderson) at (843) 735-
9086.
3. For any spill that goes to a stormwater drain or to soil, collect the following information and
contact the EHS manager as soon as possible:
• Exact Location of Spill
• Spill date and time
• Material spilled
• Estimated quantity
• Source of spill
• Cause of spill
• Name of body of water involved or nearest water body to spill area
• Action taken
GE/GNF Wilmington -5 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
TABLE 4-1: Potential Pollution Sources
Current Outfall Risk
Key Number potential Significant Material Responsibility Structural Control Non-Structural Control
Number' Level
Site Maintenance Manager Curbs,collection piping,settling
Outfall 1 1 2 Parking area only Dave Anderson ---
Mike Phipps/Jeff Hollis basin and sand filter
Site Maintenance Manager
Outfall 2 2 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
SCO Building Manager Roof,Curbing,catch pans at Check stormwater before release.
2A 2 4 Chemical Storage David Ladd dispensing racks,surface and Incompatible materials are stored
Ricky Miller grading,containment valve separately.
2B 2 6 Contaminants from shop David Ladd SCO Building Manager Curbing,surface and grading, Check stormwater before release.
Ricky Miller
trash and metals containment valve
Site Maintenance Manager
Outfall 3 3 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
Site Maintenance Manager -Tank dike
3A 3 12 Used Oil Dave Anderson -Loading area curb Check stormwater before release
Mike Phipps/Jeff Hollis -Surface and grading
AE Maintenance Leader
313 3 6 Used Oil Chris League Complete secondary containment None
Anthony Smith
AE Maintenance Leader
3C 3 6 Used Oil Chris League Complete secondary containment None
Anthony Smith
AE Maintenance Leader -Roof
3D 3 3 Used Oil-Evaporator Chris League -Loading area curb None
Anthony Smith -Secondary Containment
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SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
AE Maintenance Leader
3E 3 6 Contaminants from shop Chris League Curbing,surface and grading, Check stormwater before release.
trash and metals Anthony Smith containment valve
Site Maintenance Manager
3F 3 3 Diesel Fuel Dave Anderson -Double Wall Tank None
Mike Phipps/Jeff Hollis
Site Maintenance Manager Curbs,collection piping,settling
Outfall 4 4 Parking area only Dave Anderson ---
Mike Phipps/Jeff Hollis basin and sand filter
Site Maintenance Manager
Outfall 5 5 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
Roof,curbing,secondary
5A 5 3 Oil in totes and drums containment dikes,containment Check stormwater before release.
valve(locked).
5B 5 12 Contaminants from shop Chris League AE Maintenance Leader Curbing with release valve(kept None
trash and metals Anthony Smith closed and locked)
Overspray from cooling AE Maintenance Leader Curbing,surface and grading,
5C 5 8 tower Chris League locked containment valve Check stormwater before release.
Anthony Smith
Construction equipment Site Maintenance Manager
Outfall 6 6 2 storage Dave Anderson Surface and grading None
Mike Phipps/Jeff Hollis
Contaminants from AE Maintenance Leader
6A 6 6 general trash and clean Chris League None None
metals Anthony Smith
GE/GNF Wilmington -5 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
Site Maintenance Manager
Outfall 7 7 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
AE Maintenance Leader -Dike
7A 7 6 Ethylene Glycol Chris League -Surface and grading Check stormwater before release
Anthony Smith
AE Maintenance Leader -Curbing
7B 7 6 Water Treatment Chris League -Roofing Check stormwater before release
Chemicals Anthony Smith -Secondary Containment from diked area
Site Maintenance Manager _Double Wall Tank Check stormwater before release
7C 7 6 Diesel Fuel Dave Anderson -Secondary Containment from diked area
Mike Phipps/Jeff Hollis
Outfall 8 Site Maintenance Manager
and 8I 8 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
AE Maintenance Leader -Complete building,roof
8A 8 6 Metal Chips-Stored Chris League -Loading area curb None
Inside Building Anthony Smith -Surface and grading
-Stormwater to process drain
8B 8 0 None-Source Removed
8C 8 0 None-Source Removed
Site Maintenance Manager
Contaminated food and -Surface and Grading
8D 8 6 Dave Anderson None
shop trash Mike Phipps/Jeff Hollis (curb available)
Site Maintenance Manager _Dike
8E 8 6 Grease Dave Anderson None
Mike Phipps/Jeff Hollis -Surface and grading
GE/GNF Wilmington 4-6 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
AE Maintenance Leader
8F 8 6 Ethylene Glycol Chris League -Secondary containment Check stormwater before release
from diked area
Anthony Smith
AE Maintenance Leader -Curbing
Water Treatment -Roofing Check stormwater before release
8G 8 6 Chemicals Chris League Anthony Smith -Secondary containment from diked area
Site Maintenance Manager
Outfall 9 9 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
FCO Building Manager -Tank dike
Sodium Hydroxide Jason King -Loading area curb Check stormwater before release
9A 9 6 -Roof over tank
Solution Danny Livengood _Stormwater to process drain from diked area
Phil Doughman
-Surface and grading
FCO Building Manager -Secondary containment
Jason King -Loading area curb Check stormwater before release
9B 9 3 Waste Etch Acid -Roof over tank
Danny Livengood from diked area
Phil Doughman -Stormwater to waste acid tank
-Surface and grading
FCO Building Manager -Tank dike
Jason King -Loading area curb Check stormwater before release
9C 9 6 Waste Coolant -Roof over tank
Danny Livengood -Stormwater to process drain from diked area
Phil Doughman
-Surface and grading
FCO Building Manager -Secondary containment
Nitric Acid(Storage Jason King -Roof over tank Check stormwater before release
9D 9 3 -Loading area curb
Tank) Danny Livengood from diked area
Phil Doughman -Stormwater to waste acid tank
-Surface and grading
GE/GNF Wilmington -7 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
FCO Building Manager -Roof over tank
Hydrofluoric Acid Jason King -Double-wall tank Check stormwater before release
9E 9 3 -Loading area curb
(Storage Tank) Danny Livengood from diked area
Phil Doughman -Stormwater to waste acid tank
-Surface and grading
FCO Building Manager -Secondary containment
Waste Sodium Jason King -Roof over tank Check stormwater before release
9F 9 3 -Loading area curb
Hydroxide Danny Livengood _Stormwater to process drain from diked area
Phil Doughman
-Surface and grading
FCO Building Manager -Tank dike
Alkaline Cleaner(15% Jason King -Loading area curb Check stormwater before release
9G 9 6 -Roof over tank
NaOH) Danny Livengood from diked area
Phil Doughman -Stormwater to process drain
-Surface and grading
FCO Building Manager -Secondary containment
9H 9 3 Nitric Acid Jason King -Roof over tank Check stormwater before release
(Batch Tank) Danny Livengood -Stormwater to waste acid tank from diked area
Phil Doughman -Surface and grading
FCO Building Manager -Secondary containment
9I 9 2 Hydrofluoric Acid Jason King -Roof over tank Check stormwater before release
(Batch Tank) Danny Livengood -Stormwater to waste acid tank from diked area
Phil Doughman -Surface and grading
FCO Building Manager -Stormwater to process drain
91 9 9 Alkaline Cleaner Jason King -Area curbing None
(Drums) Danny Livengood -Surface and grading
Phil Doughman
FCO Building Manager
9K 9 18 Dumpsters— Jason King -Surface and grading None
Scrap Metal Danny Livengood
Phil Doughman
GE/GNF Wilmington 4-8 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
FCO Building Manager -Closed drum with cover
9L 9 4 Waste Zirc Chips and Jason King -Dike None
water/coolant Danny Livengood -Free drain to process
Phil Doughman
9M 9 0 None—source removed
9N 9 6 Diesel Fuel Dave Anderson Site Maintenance Manager -Secondary containment None
(1700 gal-Generator) Mike Phipps/Jeff Hollis -Surface and grading
Site Maintenance Manager -Closed building
90 9 1 Paint Dave Anderson -Above ground None
Mike Phipps/Jeff Hollis -No stormwater contact
Diesel Site Maintenance Manager -Double wall tank
9P 9 6 (119 gal Generator) Dave Anderson -Surface and grading None
Mike Phipps/Jeff Hollis
Site Maintenance Manager
9Q 9 6 Diesel Dave Anderson -Double wall tank None
(210 gal Generator) Mike Phipps/Jeff Hollis -Surface and grading
Contaminants from Site Maintenance Manager
9R 9 3 Dave Anderson -Closed Dumpster None
cafeteria trash Mike Phipps/Jeff Hollis
FCO Building Manager
9S 9 18 Contaminants from shop Jason King -Surface and grading None
trash and packaging Danny Livengood
Contaminants from Site Maintenance Manager
9T 9 18 metals,shop trash Dave Anderson None None
Mike Phipps/Jeff Hollis
GE/GNF Wilmington 4-9 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
9U 9 0 None—Source Removed
Contaminants from FMO Building Manager
9V 9 9 office trash Doug Nay -Roof but no sides None
Bobby Mclean
Site Maintenance Manager -Curbed
9W 9 6 Treated cooling water Dave Anderson -Drains to process sewer None
Mike Phipps/Jeff Hollis
FCO Building Manager
9X 9 12 Treated cooling water Jason King -Curbed Manually pumped to process
Danny Livengood sewer
Site Maintenance Manager
9Y 9 2 Treated Cooling Water, Dave Anderson -Roof None
Sulfuric Acid Mike Phipps/Jeff Hollis -Secondary Containment
Site Maintenance Manager -Lid on bin -Stormwater checked before
9Z 9 3 Grease Dave Anderson -Secondary Containment release
Mike Phipps/Jeff Hollis -Locked valve on containment
Site Maintenance Manager
9AA 9 6 Treated Cooling Water, Dave Anderson -Roof None
Sulfuric Acid Mike Phipps/Jeff Hollis -Secondary Containment
FMO Building Manager
91313 9 9 Office Trash Doug Nay None None
Bobby Mclean
GE/GNF Wilmington 4-10 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
Site Maintenance Manager
Outfall 10 10 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
FMO Building Manager -Secondary Containment
Sulfuric Acid -Loading area curb drains to -Diked area:check stonnwater
l0A 10 2 (Bulk tank) Doug Nay Bobby Mclean process before release
-Surface and grading
Sulfuric Acid FMO Building Manager -Curbed area drains to process
10B 10 3 Doug Nay None
(Totes) Bobby Mclean -Surface and grading
Site Maintenance Manager
Outfall 11 11 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
Site Maintenance Manager -Dumpster
11A 11 18 Scrap Metal Dave Anderson None
Mike Phipps/Jeff Hollis -Surface and grading
1113 None—Source Removed
Site Maintenance Manager -Secondary containment dike Check stormwater before
tic 11 6 Gasoline&Diesel Fuel Dave Anderson -Loading area curb release
Mike Phipps/Jeff Hollis -Surface and grading
Chemical Receiving- Sourcing Manager -Roof,complete building
III) 11 4 -Surface and grading of access None
Stored Inside Building Darion Jeralds
area
1 1 E 11 12 Chemicals stored outside Sourcing Manager -Surface and grading None
sourcing building Darion Jeralds
GE/GNF Wilmington 4-11 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
Site Maintenance Manager
11F 11 9 Office Trash Dave Anderson None None
Mike Phipps/Jeff Hollis
Site Maintenance Manager
Outfall 12 12 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
Logistic Manager -Enclosed building
12A 12 4 RCRA Hazardous Michael Conner -Roofed area -Curbed area:check stormwater
Wastes James Mathews -Loading area curbing with before release
discharge valve
12B 12 6 General Chemicals Sourcing Manager -Enclosed building
Darion Jeralds -Roofed area
-Tank dike
FMO Building Manager -Loading area curb
12C 12 2 Nitric Acid Doug Nay -Stormwater trucked to Waste Not in use
Bobby Mclean Treatment
-Surface and grading
-Tank within a tank
FMO Building Manager -Loading area curb
12D 12 6 Salt,Brine Doug Nay -Stormwater from loading area to None
Bobby Mclean process drain
-Surface and grading
FMO Building Manager
12E Ammonium Fluoride -Tank curb
12 0 Solution (V 106) Bobby Do Dou Na Mclean -Stormwater to process drain Not in use
Saf e-Store Safe-Store -Surface and grading
12F Ammonium Nitrate FMO Building Manager -Tank curb
Safe-Store 12 0 Solution(V 103) Doug Nay -Stormwater to process drain Not in use
Safe-Store Bobby Mclean -Surface and grading
GE/GNF Wilmington 4-12 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
FMO Building Manager -Tank dike
12G 12 4 Adjacent used Oil Doug Na -Storage Pad curbing Stormwater inspected before
Storage Bobby Mclean -Drums in overpack release
-Surface and grading
FMO Building Manager -Secondary containment
12H 12 2 Hydrofluoric acid Doug Nay -Stormwater drained to process Not in use
Bobby Mclean sewer.
12I None—Source Removed
Used Oil FMO Building Manager -Roof over tank Stormwater inspected before
12J 12 0 (Incinerator) Doug Nay
-Secondary containment release.
In Safe Store Bobby Mclean
FMO Building Manager -Roof over tank
12K 12 2 Diesel Fuel Doug Nay -Secondary containment None
(in Generators) Bobby Mclean -Area drains to containment for
12-0
FMO Building Manager -Cylinders braced in position
12L 12 6 U in UF6 Cyliners Doug Nay None
Bobby Mclean -iJF6 is solid in cylinders
Fuel Oil FMO Building Manager -Double walled tank
12M 12 6 (500 gal) Doug Nay -Tank elevated None
Bobby Mclean
Oil/Solvent FMO Building Manager -Roof Stormwater inspected before
12N 12 4 Doug Nay -Curbed containment
(storage building) Bobby Mclean -Surface and grading release.
FMO Building Manager
120 12 6 Fuel Oil&Kerosene Doug Nay -Secondary containment Stormwater inspected before
Bobby Mclean -Loading area curbed release
GE/GNF Wilmington 4-13 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
FMO Building Manager
12P 12 0 Source Removed Doug Nay
Bobby Mclean
Contaminants from shop FMO Building Manager
12R 12 18 trash Doug Nay -Surface and grading None
Bobby Mclean
Contaminants from FET Building Manager
12S 12 6 bagged office trash Chandler King -Surface and grading None
Tom Jones
Treated Cooling Water, FMO Building Manager -Secondary Containment
12T 12 2 Doug Nay -Curbing None
Sulfuric Acid Bobby Mclean -2x wall tank
Treated Cooling Water, FMO Building Manager -Secondary Containment
12U 12 6 Doug Nay -Curbing None
Sulfuric Acid Bobby Mclean -2x wall tank
FMO Building Manager
Outfall 13 13 -- Doug Nay --- ---
Bobby Mclean
FMO Building Manager -Roof
13A01 13 3 Treated HF Doug Nay -Dike—secondary containment -Stormwater pumped to process
Bobby Mclean -Loading area curbed
FMO Building Manager -Tank curb
13A02 13 6 Hydrated Lime Doug Nay -Loading area curb -Tank: return of liquid to
(WT V-118) Bobby Mclean -Surface and grading process;
GE/GNF Wilmington 4-14 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
-Loading area curb
Treated Plating&Etch FMO Building Manager -Roof over tank
13A03 13 2 Sludge (WT V-115N- Doug Nay -Tank curb Not in use
113) Bobby Mclean -Stormwater to process drain
-Surface and grading
None—source removed.
13A04 13 0 Source 13-05A covers
HF derived CaF2
Treated HF Sludge- FMO Building Manager -Complete building
13A05 13 6 Loaded Inside Building Doug Nay -Access area curb None
Bobby Mclean -Surface and grading
FMO Building Manager -Curb
13A06 13 2 Ammonium Nitrate Doug Nay -Pump for return to process Not in use
Solution(truck sump) Return of liquid to process
Bobby Mclean -Surface and grading
13A07 13 0 None: Source removed
Calcium Fluoride and FMO Building Manager
13A08 13 6 Treated Waste Water Doug Nay -Dikes Not in use
(basin) Bobby Mclean
13A09 13 0 None: Source removed
Ammonium Nitrate FMO Building Manager
13A10 13 6 Doug Nay -Dikes Not in use
Solution(basin) Bobby Mclean
13A13 13 0 None: Source Removcd
GE/GNF Wilmington 4-15 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
13A14 13 2 None: Source removed
HF 10% FMO Building Manager Secondary containment dike Check stormwater before release
13A26 13 2 (WT V-800) Doug Nay Roof to process.
Bobby Mclean
Ammonium Nitrate FMO Building Manager Tank curb Not in use
13A27 13 2 Solution WT V-104 Doug Nay Roof Transfer stormwater to process
Bobby Mclean
FMO Building Manager
Contaminants from shop Doug Nay -Surface and grading
13A28 13 6 and office trash Bobby Mclean -Curbing Check stormwater before release
-Closed and locked release valve
FMO Building Manager
Uranium from Can/ -Surface and grading
13C 13 6 Waste box storage Doug Nay -Cans in plastic bags Bags replaced regularly
Bobby Mclean
Diesel Fuel FMO Building Manager Tank
13D 13 6 (Fire Pump) Doug Nay Dike Check stormwater before release
Bobby Mclean Surface and drainage
Contaminants from shop WSFC Building Manager
13E 13 9 Chandler King Cover for metal dumpster None
and office trash Tom Jones
GE/GNF Wilmington 4-16 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
Offsite sources Site Maintenance Manager
Outfall 14 14 (I140) Dave Anderson -Surface and grading None
Mike Phipps/Jeff Hollis
Site Maintenance Manager
Outfall 15 15 None Dave Anderson -Surface and grading None
Mike Phipps/Jeff Hollis
Site Maintenance Manager
Outfall 16 16 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
Site Maintenance Manager
Outfall 18 18 -- Dave Anderson --- ---
Mike Phipps/Jeff Hollis
Site Maintenance Manager Fully enclosed in fabric bags with
18A 18 6 Dried Sludges Dave Anderson None
Mike Phipps/Jeff Hollis internal plastic liners.
18B 18 0 Source removed
18C 18 0 Source removed
Site Maintenance Manager Closed Tank,Sheet flow over None
18D 18 6 Filtrate Water Dave Anderson
Mike Phipps/Jeff Hollis gravel/grass to get to ditch. Not in use
Site Maintenance Manager
18E 18 6 Sanitary Sludge Dave Anderson Closed Tank None
Not in use
Mike Phipps/Jeff Hollis
Site Maintenance Manager
18F 18 6 Wastewater Dave Anderson Closed Tank None
Not in use
Mike Phipps/Jeff Hollis
Site Maintenance Manager Liquids pumped to tank and
18G 18 6 Sanitary Sludge Dave Anderson Curbing with sump and pump. hauled to Sanitary Waste
Mike Phipps/Jeff Hollis Treatment
(Not in service)
18H 18 0 Source removed
GE/GNF Wilmington - 7 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
Current Outfall Risk
Key Number Potential Significant Material Responsibility Structural Control Non-Structural Control
Number Level
18I 18 0 Source Removed
Site Maintenance Manager
181 18 9 Dried Solids,Lime Dave Anderson Covered with roof and walls None
Mike Phipps/Jeff Hollis
Site Maintenance Manager
18K 18 6 Raw Sewage Dave Anderson Tank in curbed area. None
(Not in service)
Mike Phipps/Jeff Hollis
"Current Key Number"is denoted by a number(which corresponds to the outfall in which the material is located)and a letter(which corresponds to the individual
material). Material location is depicted in drawing#8001E99.
* Current Key Numbers beginning with an asterisk"*"are not associated with an outfall as no manufacturing/processing operations are present.
---Signifies"Not Applicable".
Note: No significant materials are present in outfalls 1,4,6, 14, 15 or 16. Also,outfall 17 does not exist.
Note: All significant materials in the vicinity of the Waste Treatment Facility and fluoride and nitrate basins are denoted as"13A"due to the quantity of materials in this
area. See detailed Waste Treatment Plan for location of specific materials.
GE/GNF Wilmington 4-18 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
4.4 INSPECTIONS/PREVENTATIVE MAINTENANCE PROGRAM
The Plan shall include....
Part II, Section A.4 - Preventative Maintenance and Good Housekeeping Program. A
preventative maintenance program shall be developed. The program shall address all
stormwater control systems (if applicable), stormwater discharge outfalls, all on-site and
adjacent surface waters and wetlands, industrial activity areas (including material storage
areas, material handling areas, disposal areas,process areas, loading and unloading areas,
and haul roads), all drainage features and inspections, maintenance and housekeeping
activities of stormwater control systems, as well as facility equipment, facility areas, and
facility systems that present a potential for stormwater exposure or stormwater pollutions
where not already addressed under another element of the SPPP. Inspection of material
handling areas and regular cleaning schedules of these areas shall be incorporated into the
program. Timely compliance with the established schedules for inspections, maintenance
and housekeeping shall be recorded and maintained in the SPPP.
The preventive maintenance program ensures that the stormwater control facilities are clean and
operating effectively. The program consists of inspection, cleaning,and repair activities.As a minimum
these activities should be conducted semiannually. Housekeeping, inspection and maintenance
activities are tracked and recorded in Gensuite Compliance Calendar and/or in Oracle maintenance
system.
The primary controls on-site which require maintenance are the four on-site retention ponds and the
GLE sand filter. Records for these locations will be included semiannually to this SWPPP beginning
January 2015. The results of all preventative maintenance are documented in the database along with
the facilities inspections.
4.4.1 Inspections
Part II, Section A.8 - Facility Inspection Program. Inspections of the facility and all
stormwater systems shall occur as part of the Preventative Maintenance and Good
Housekeeping Program at minimum of semi-annual schedule, once during the first half of
the year (January to June), and once during the second half(Juley to December), with at
least 60 days separating inspections dates (unless performed more frequently than semi-
annually). These facility inspections are different from and in addition to, the stormwater
discharge characteristic monitoring at the outfalls required in Part H B, C, and D of this
permit.
Inspections will be conducted twice annually at the locations identified on Drawing No. 8002E99.
In addition, the stormwater control structures (outlined in Table 4-1) will also be inspected. Use Form
D (attached) to record the results of the inspection. Upon completion of the inspection, cleaning and
repair activities should be completed and documented as described in Section 4.4.2. The completed
forms or summary report should be inserted in the yearly SPPP Compliance Notebook for record.
Specific inspection areas will include:
• Catch basins and trench drains
• Roofs and covers for potential leaks
• Material handling and storage areas
GE/GNF Wilmington 4-16 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
• Secondary containment areas
• Check all areas for potential spills and possible contamination
4.4.2 Cleaning and Repair Program
The schedule for cleaning and repairing stormwater management control structures will be based
primarily on the results of the inspections. The cleaning or repair action will be recorded and retained
with the yearly SPPP Compliance Notebook. Recommended cleaning and repair activities include:
• Repair and cleaning of screens on catch basins
• Repair and cleaning of trench drains
• Cleaning/repair of oil/water separators
• Maintenance on all equipment and tanks where a failure could produce a spill
Recommended "housekeeping" practices in order to keep the facility in a clean and orderly
condition include:
• Sweeping of impervious surfaces
• Regular pickup and disposal of garbage and debris
• Routine inspection for leaks
• Proper material container storage practices
• Identification and labeling of all chemical substances
• Disposal of old equipment and used chemicals
The stormwater collection system should be cleaned and impervious surfaces should be swept
annually in order to remove particulates,which have built-up over and are high in pollutants.
4.5 EMPLOYEE TRAINING
The Plan shall include....
Part I, Section A.].e—Employee Training. Training schedules shall be developed, and training
provided at a minimum on an annual basis on proper spill response and cleanup procedures
and preventative maintenance activities, and for any of the facility's operations that have the
potential to contaminate stormwater runoff. The facility personnel (or team) responsible for
implementing the training shall be identified, and their annual training shall be documented
by the signature of each employee trained.
The Employee Education and Training Program is designed to familiarize employees with the
intent and components of the SPPP. Training will be provided for appropriate employees. Training for
transferred or new employees will be provided at time of job start.
Topics to be included in the training session include:
• General awareness
• How to use this manual
• Chemical spill response procedures
GE/GNF Wilmington - 7 Stormwater Pollution Prevention Plan

SECTION 4.STORMWATER MANAGEMENT CONTROLS
• Preventative maintenance
• Inspection procedures
• Materials management practices
• Good housekeeping measures
Records of training will be kept in the yearly SPPP Compliance Notebook.
GE/GNF Wilmington 4-18 Stormwater Pollution Prevention Plan

SECTION 5.NON-STORMWA TER INVESTIGATION
SECTION 5
NON-STORMWA TER INVESTIGATION
5.1 GENERAL
The potential for contamination of stormwater runoff at the facility from non-stormwater
discharges was investigated. The method used to perform the investigation consisted of the following:
• Observations of stormwater outfalls during dry weather and normal working hours.
• An outside facility inspection for unidentified discharges.
• Review of the as-built drawings for the facility.
Because of the non-stormwater investigation,air-conditioner condensate discharges were found to
be the only non-stormwater discharge. However, Part VI, Definition 3 specifies that air-conditioner
condensate without chemicals and discharges of uncontaminated potable water are allowable discharges
into the stormwater system.
5.2 CERTIFICATION
Part II, Section A.Le - Certification that the stormwater outfalls have been evaluated for the
presence of non-stormwater discharges. The certification statement will be signed in
accordance with the requirements found in Part III, Standard Conditions, Section B,
Paragraph 3.
The Annual Non-Storm Water Discharge Assessment (Form F) will be completed by the site
stormwater pollution prevention team leader or representative. The form will be signed certifying that,
as an authorized representative of GE-H / GE / GNF in Wilmington, North Carolina, the stormwater
outfalls have been evaluated for the presence of non-stormwater discharges.
The signed Annual Non-Storm Water Discharge Assessment will be kept in the yearly SPPP
Compliance Notebook.
GE/GNF Wilmington 5-1 Stormwater Pollution Prevention Plan

SECTION 7.COMPLIANCE REQUIREMENTS
SECTION 6
STORMWATER MONITORING
Both analytical and visual monitoring is required under the stormwater permit. This chapter presents
the detailed requirements for both visual monitoring (Section 6.2), analytical monitoring (Sections 6.3
through 6.6), and record keeping and reporting requirements(Sections 6.7 and 6.8).
6.2 VISUAL(QUALITATIVE)MONITORING
Visual monitoring at all stormwater discharge outfalls must be conducted semiannually (once in
the spring from April through June, and once in the fall from September through November). Visual
inspection does not necessarily need to be performed during a representative storm event. However,the
first visual monitoring event should be performed simultaneously with the first analytical monitoring
event.
Qualitative visual observation of the following characteristics is required: color, odor, clarity,
floating solids, suspended solids, foam,oil sheen,and other obvious indicators of stormwater pollution.
Form G, Stormwater Discharge Outfall (SDO) Qualitative Monitoring Summary should be used
for the visual monitoring reports. The completed form should be kept in the yearly SPPP Compliance
Notebook.
6.3 ANALYTICAL MONITORING
At a minimum, analytical monitoring is required the semiannually (April — June, September —
November) for as long as the permit is in effect. Monitoring results shall be compared to benchmark
values contained in the permit. The benchmark values are not permit limits but should be used as
guidelines for the SPPP. Any benchmark exceedances will be investigated and stormwater BMPs will
be evaluated for effectiveness. The SPPP shall be reviewed and updated to document efforts to address
stormwater contamination
The permit stipulates that sampling shall only be collected from a discharge resulting from a
representative storm event. This is defined as a storm event that is greater than 0.1 inches and that is
preceded by at least 72 hours in which no storm event measuring greater than 0.1 inches has occurred.
6.4 ANALYTICAL MONITORING LOCATIONS
Analytical samples are to be taken at Outfalls 9, , 13i and 15i as representative of all of the
outfalls at the facility.
GE/GNF Wilmington 6-1 Stormwater Pollution Prevention Plan

SECTION 6.STORMWA TER MONITORING
6.5 ANALYTICAL MONITORING PARAMETERS
As per the conditions of the permit,the following parameters are required to be sampled as part of
the stormwater monitoring program.
Discharge Characteristic Units Sample Type Sample Location Benchmark
Lead,total recoverable mg/L Grab 9, 13i, 15i 0.075
Non-Polar Oil and Grease mg/L Grab 9,13i,15i 15
(EPA method 1664)
pH standard Grab 9,13i,15i 6 -9
Total Suspended Solids — mg/L Grab 9,13i,15i 100
TO Prince George Creek
Total Suspended Solids — mg/L Grab 9,13i,15i 50
TO NE Cape Fear River
Total Rainfall Inches --- ---
Grab samples are defined as individual samples collected instantaneously. Grab samples that
will be directly analyzed or qualitatively monitored must be taken within the first 30 minutes of
discharge if possible. If not possible, then sampling must begin within 30 minutes of the beginning of
the storm event and continue until all samples are taken
6.6 ANALYTICAL MONITORING PROCEDURES
The following procedures will help minimize the possibility of contamination and physical or
chemical changes once a sample has been taken,thereby helping ensure a representative sample.
6.6.1 Pre-Sampling Preparation
Sampling containers must be requested from the laboratory performing the analyses. The request
generally will include the following information.
• Analyses to be performed
• Total number of samples to be collected(including duplicates and field blanks)
• Types and number of bottles to be provided
• Type and amount of preservatives to be provided,if known
• Approximate dates of sampling,if known
The lab will supply different size containers depending on their analysis needs.
One set of containers is required for each monitoring site (i.e., Outfalls 9, 13i, and 15i). In
addition, for each storm-sampling event, an extra set or two may be required for quality assurance (QA)
purposes. The lab will supply the containers and perform any necessary container preparation, such as
acid rinses in accordance with approved EPA methods. The bottles with the required preservatives and
a bottle of de-ionized water for QA purposes will be supplied by the lab. The lab should also identify
GE/GNF Wilmington 6-2 Stormwater Pollution Prevention Plan

SECTION 6.STORMWA TER MONITORING
which containers are for each analysis. The lab may allow that certain samples be taken or combined
into a single container.
Upon receipt of the ice chest the field crew leader will verify that the correct number of
containers, type of containers, and preservatives are in the ice chest. Gummed labels will be affixed to
the containers. It is recommended that the type of analysis and sampling location be filled out on each
label with indelible ink prior to the sampling. The date, time, and initials of the field crew leader will be
added just prior to taking the sample.
Equipment that will simplify the sampling process is shown in Table 6-1.
Table 6-1 Stormwater Sampling Equipment List
Bags of Ice Latex or Nitrile Gloves
Chain-of-Custody Record(Form H) Ice Chest(s)
Sample Bottles Preservatives(acids,bases)
De-Ionized Water(gal) Rain Gear
Duct Tape Reflective Safety Vests
Extra Labels Rubber Boots w/Steel Toes
Field Data Sheet(Form I) Splash Proof Goggles
Flashlight/Lantern Cellular Phone
Indelible Marker Ziploc bags(quart-size)
6.6.2 Initiation of Sampling
The field crew leader will initiate storm event preparation:
1. During the designated sampling intervals(January 1 —June 30, July 1 December 31)
2. A minimum of 72 hours of dry weather has occurred, and
3. The probability of precipitation is greater than about 70 percent.
The preparation shall include notification to the receiving laboratory and to the sampling team that
sampling is planned.
The field crew leader is to monitor weather reports and watch for storms approaching the area.
When measurable rainfall is anticipated (0.1 inch or greater), the field crew leader shall ascertain that
the sampling team and all required sampling equipment is prepared for a sampling event. After the
rainfall has started, the field crew leader should check the most easily accessible monitoring location to
see if runoff is occurring. If runoff is occurring the sampling process may begin. Consideration should
be given to the time of day and to the day of the week since samples should not be taken if they cannot
be delivered and processed within the allowable holding times.
6.6.3 Sampling
Each site will be monitored by collecting grab samples. All sampling should be completed during
the same sampling event,if possible. This ensures that all sampling is representative of the discharge.
Whenever possible, samples should be taken from the middle of the flow. Orienting sample
containers with their opening downstream while lowering them below the surface of the water helps
avoid surface debris being washed in. Once immersed, the bottles should be reoriented upstream to
allow thorough flushing before the sample is removed. Care should be taken to avoid stirring up and
GE/GNF Wilmington 6-3 Stormwater Pollution Prevention Plan

SECTION 6.STORMWA TER MONITORING
thus collecting bottom sediments. For example, if it is necessary to stand in the sampling flow, stand
downstream of the sampling bottle.
Sample bottles should be capped and put in the ice-filled chest as soon as possible after sampling
each site.
Sampling details should be entered into the Field Data Sheets (Form I) for each sampled outfall.
They should include date, time, site, names of sampling crew, and any other observations which might
affect water quality, such as depth of flow, depth of sample, any floating debris, any oily sheens, etc.
The amount and time of rainfall for the sampled storm can be added later. The time elapsing before the
start of runoff at each outfall may be noted,if it is known.
Upon completion of sampling the sampling bottles should be tightly packed into the ice chest
with adequate ice and packing material to protect against breakage. The ice used must last until the
chest reaches the lab. (Ziploc bags can be inflated and sealed to provide extra cushioning).
Once the sampling has been completed, all containers should be checked to see that they are
properly labeled and that the appropriate forms have been fully completed (including Field Data Sheets
and Chain of Custody forms).
A Chain of Custody form, Form H, or an equivalent form provided by the laboratory, must be
filled out after the samples have been collected and packed in the ice chest for transport to the labo-
ratory. The form must identify the date and time that the samples were collected,the sampling sites,the
number of each type of sample, and the name of the field crew leader. A copy of the signed form will
be kept by the field crew leader,the original will be double-sealed in Ziploc bags and taped to the inside
lid of the ice chest.
Sampling containers should be carefully packed and either hand delivered or shipped to the
laboratory. It is the field crew leader's responsibility to make sure that the samples are processed
correctly and that they reach the laboratory within the required holding times.
6.7 RECORD KEEPING
Detailed records must be maintained to provide quality assurance/quality control for a stormwater
sampling program. Components of the records management program include the following items:
• Stormwater Discharge Outfall Qualitative Monitoring Report or equivalent
• Chain-of Custody Form(Form H)
• Field Data Sheet(Form I)
• Specific monitoring information(visual and grab sampling
1. The date, location,time and methods of sampling or measurements;
2. The individual(s)who performed the sampling or measurements;
3. The date(s)analyses were performed and time analyses were initiated;
4. The individual(s)who performed the analyses;
5. The analytical techniques or method used; and
6. The results of the analyses.
GE/GNF Wilmington 6-4 Stormwater Pollution Prevention Plan

SECTION 6.STORMWA TER MONITORING
All forms, as well as the analytical results shall be kept together in the yearly SPPP Compliance
Notebook.
Observations made during each visual observation will be compared with previous observation
reports. Observations of color, foam or oil sheen indicate the need for corrective actions. A comparison
of the reports will be made to determine if corrective actions have been taken on previously noted
observations.
The stormwater sampling data will be compared with previously collected data. Pollutant
concentrations are dependent upon a number of variables. Period of time from last rainfall, rainfall
intensity and duration, recent spills or leaks, sampling techniques, and lab analysis techniques are all to
be considered when interpreting the stormwater data. A reduction in the concentrations of the sampled
parameters may indicate successful implementation of the SPPP. Increases may indicate poor sampling
or analysis techniques, an ineffective stormwater control or a change in the operation of the facility.
Care should be exercised when interpreting this data. Additional corrective measures will be
implemented if the increase in loadings is thought to be from a lack of stormwater control.
6.8 REPORTING REQUIREMENTS
Annual analytical monitoring results must be submitted to the Division on Discharge Monitoring
Report forms provided by the State. These submittals must be received by the Division no later than
30 days from the date the results were received by the facility. Duplicate signed copies of all reports
shall be submitted to the following address:
Central Files
Division of Water Resources
Water Quality Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,NC 27699-1617
Retention of all monitoring records is required for a period of at least 5 years.
6.9 VEHICLE MAINTENANCE MONITORING REQUIREMENTS
Analytical monitoring of stormwater discharges from vehicle maintenance activities is required if
a facility uses more than 55 gallons of new motor oil per month when averaged over the calendar year.
Based on the 2007 average new motor oil usage rate of 20.7 gallons per month, GE-H / GE / GNF
Wilmington is not required to perform analytical monitoring of vehicle maintenance activities.
However, an annual check of facility new motor oil usage is required to verify exemption from vehicle
maintenance activity monitoring. The results of the annual new motor oil usage will be kept in the
yearly SPPP Compliance Notebook
GE/GNF Wilmington 6-5 Stormwater Pollution Prevention Plan

SECTION 7.COMPLIANCE REQUIREMENTS
SECTION 7
COMPLIANCE REQUIREMENTS
7.1 GENERAL
Compliance conditions are established in the stormwater permit for preparation and
implementation of the SPPP. These conditions are discussed below.
7.2 COMPLIANCE REQUIREMENTS
Development and implementation of the SPPP is a requirement of the stormwater permit.
The following checklist outlines key activities required by this SPPP. All items are kept in
the yearly SPPP Compliance Notebook(other than the SPPP update)
Compliance Checklist
• SPPP Team Identification of specific positions responsible for SPPP coordination,
development, revision, implementation, and documentation is required. Also, the SPPP
should designate position assignments for all components of the plan.
• Analytical Monitoring Analytical monitoring of three representative outfalls (9, 13i, and
15i) is required semi-annually during the designated time periods (January—June, July—
December). Parameters analyzed include total recoverable Lead, oil and grease, pH and
total suspended solids. These results should be submitted to NCDENR Division of
Energy,Mineral and Land Resources within thirty days of receipt of the laboratory results.
• Semiannual Visual Monitoring Visual monitoring at all stormwater discharge outfalls
must be conducted semiannually (once in the spring from April through June, and once in
the fall from September through November). Visual inspection does not necessarily need
to be performed during a representative storm event. Qualitative visual observation of the
following characteristics is required: color, odor, clarity, floating solids, suspended solids,
foam, oil sheen, and other obvious indicators of stormwater pollution. Use the form titled
"Stormwater Discharge Outfall(SDO) Qualitative Monitoring Report".
• Semiannual Facility Inspections and Documentation Inspections of the facility and all
stormwater systems and sources identified in Table 3-2 must be conducted semiannually
(once in the spring from April through June, and once in the fall from September through
November). Documentation of the inspection and any subsequent required maintenance
activities is required. The date and time of inspection, individual(s) performing the
GE/GNF Wilmington 7-1 Stormwater Pollution Prevention Plan

CHAPTER 7. COMPLIANCE REQUIREMENTS
inspection, narrative of the stormwater control systems, and any maintenance activities
performed must be recorded.
• Annual Check of New Motor Oil Usage Analytical monitoring of stormwater discharges
from vehicle maintenance activities is required if the facility uses more than 55 gallons of
new motor oil per month when averaged over the calendar year. Based on the current new
motor oil usage rate at the facility. GE / GNF Wilmington is not required to perform
analytical monitoring of vehicle maintenance activities. However, an annual check of
facility new motor oil usage is required to determine exemption from vehicle maintenance
activity monitoring.
• Annual Employee Training For personnel involved in operations that have the potential to
contaminate stormwater runoff, annual training is required on: (1) proper spill response
and cleanup procedures, and(2)preventative maintenance activities.
• Non-Stormwater and Discharge Assessment Annual inspections and documentation at all
sixteen outfalls that there are no non-stormwater flows present is required. Note that all
certain discharges(e.g., ac condensate and firefighting flows) are allowed.
• Annual SPPP Review and Update—Whenever there is a change in facility design,
construction, operation, or maintenance, which affects the potential for pollutant discharge
to surface waters, the SPPP will be mended. Ata a minimum, however, the SPPP must be
reviewed and updated on an annual basis.
GE/GNF Wilmington 7-2 Stormwater Pollution Prevention Plan

SECTION 8.SPPP SUMMARY
SECTION 8
SPPP SUMMARY
8.1 GENERAL
This section has been prepared as a summary of the SPPP elements to assist the facility
personnel with implementation. A brief description of the purpose and intent of each section is
provided.
8.2 PURPOSE OF PLAN
Stormwater pollution is created when pollutants from industrial areas mix with stormwater.
This contaminated runoff is potentially detrimental to the environment, particularly, the surface
water bodies that receive the runoff. The purpose of the plan is to bring about a reduction in the
quantity of pollutants entering the stormwater system from industrial areas.
8.3 SPPP ELEMENTS
The sections of the SPPP are briefly discussed.
Section 1.0-4ntroduction. The purpose of the plan and a description of the format used to
develop the plan are discussed in this section.
Section 2.0—SPPP Certification and Coordination. A signature block is provided for the
authorized signature of a facility representative. The representative's signature certifies that all
information in the SPPP is true and accurate. SPPP implementation and coordination requirements
are presented.
Section 3.0—Site and Source Description. A description of the drainage characteristics of
the facility and the pollutant sources is provided in this section. Figures showing drainage features,
locations of significant materials, and areas of industrial activity are included. Any future physical
changes to the facility that would alter the drainage characteristics or changes in the industrial
activities at the site should be reflected in a revised SPPP.
Identification of potential pollutant sources is the first step in reducing stormwater pollution.
Sources can be identified through the mandatory inspection program; however, the plan will be
more effective if all employees develop an awareness of potential pollutant sources (see Section
4.5, Employee Training). This section should be updated as changes occur and during the annual
SPPP review.
Areas of the facility to look for potential pollutant sources include the following:
• Areas where materials are improperly stored and are exposed to stormwater;
• Locations where materials are transferred or handled;
GE/GNF Wilmington 8-1 Stormwater Pollution Prevention Plan

SECTION 8.SPPP SUMMARY
• Trash storage areas; and
• Roof areas with vents or equipment.
Conditions that may indicate potential sources include:
• Signs of poor housekeeping (i.e. debris and clutter, unswept floors and
pavement,uncovered materials, etc.);
• Spots,pools,puddles, or other traces of oil, grease, or other chemicals on the
ground or pavement;
• Discoloration,residue, or corrosion around roof vents or pipes;
• Leaking equipment,pipes, or containers;
• Areas where sorbent materials have been used;
• Observations of smoke, dirt, odors, or fumes indicating material losses; and
• Improperly stored and labeled materials.
Section 4.0—Stormwater Management Controls. Existing BMPs and stormwater
controls to either prevent or reduce stormwater pollution are described. Future stormwater controls
and a schedule for implementing the controls are also provided in this section. Some of the
practices or stormwater controls that are considered include:
1. Good housekeeping:
• Keep all areas clean and in an orderly condition.
Good housekeeping procedures will considerably improve the quality of the
stormwater runoff. These measures should be employed as often as necessary.
2. Preventive maintenance:
• Semiannual inspections to check the operation of stormwater management
devices (i.e. catch basins and oil/water separators), and process and
material handling equipment;
• As required,maintenance and cleaning of stormwater management devices;
• As required, maintenance of process and material handling
equipment.
Records of inspections and maintenance must be retained as part of the
SPPP.
GE/GNF Wilmington 8-2 Stormwater Pollution Prevention Plan

SECTION 8.SPPP SUMMARY
3. Spill response and prevention:
• Identification of areas where spills can occur;
• Material handling procedures are specified to prevent or reduce risk of
spills; and
• Identify procedures and equipment for cleaning up spills.
The emphasis of this section is to prevent spills from occurring. If a spill should occur,
correct reporting and cleanup procedures must be followed. The Chemical Spill
Response Procedures Plan is referenced for proper spill prevention, cleanup and
notification procedures. The Plan needs to be kept up-to-date with required federal,
state,and local spill reporting requirements.
4. Annual employee training:
• Explain to employees the purpose and importance of the SPPP; and
• Instruct employees on the implementation of BMPs.
Section S.O—Ton-Stormwater Certification. Non-stormwater discharges are not allowed
under the Stormwater Permit. This SPPP certifies that all stormwater outfalls have been evaluated and
found to be free of non-stormwater discharges. Examples of non-stormwater discharges that are not
allowed include: water used in the manufacturing process, non-contact cooling water, vehicle wash
water, the use of detergents in external building and plant yard wash downs, and sanitary wastes.
Visual inspections for non-stormwater sources are recommended twice a year.
Section 6—Stormwater Monitoring.Analytical and visual stormwater monitoring procedures,
as well as reporting requirements, are described in detail. In summary, analytical monitoring of three
representative outfalls (9, 13, and 14) is required during a representative storm event. The frequency of
analytical monitoring is based on initial sampling results. Visual monitoring at all stormwater
discharge outfalls must be conducted semiannually (once in the spring from April through June, and
once in the fall from September through November). Annual analytical monitoring results must be
reported to the Director of Environmental Management no later than January 31 for the previous ye
that the sampling was performed.
Section 7—Compliance Conditions. The schedule for the preparation of the SPPP and for
compliance with the SPPP is provided as per the permit requirements. Additionally, a summary of key
activities required by the SPPP is outlined in this chapter.
Section 8—SPPP Summary.The major elements of the SPPP are summarized by chapter.
Appendix A—Stormwater Permit No.NCS000022
Appendix Blank Sample Forms
Appendix C--Outfall Identification Placard Photographs
GE/GNF Wilmington 8-3 Stormwater Pollution Prevention Plan

GNF-Americas/
GE Nuclear Energy/ Year
GE Aircraft Engines CHRONOLOGICAL RECORD OF FACILITY CHANGES
Wilmington, North Carolina AFFECTING STORMWATER QUALITY
FORM A

GNF-Americas/ GE Nuclear Energy/ Year
GE Aircraft Engines ANNUAL PLAN REVIEW
Wilmington, North Carolina
SUMMARY OF CHANGES:
SIGNATURE:
Annual Review Form
FORM B

RELEASE OF ACCUMULATED STORMWATER
Secondary Containment Structure:
Visual Observation of Accumulated Stormwater Quantity Released to Storm Required
Date: Inspector Color Foam Visible Sheen Approx Water System Sampling?
FORM C

GNF-Americas/ GE NUCLEAR ENERGY/GE AIRCRAFT ENGINES DATE:
WILMINGTON, NORTH CAROLINA INSPECTOR:
PREVENTIVE MAINTENANCE/INSPECTION PROGRAM
MAINTENANCE/INSPECTION REPORT
SIGNIFICANT MATERIAL/ ACTION REQUIRED ACTION TAKEN
CONTROL STRUCTURE OBSERVATION (CLEANING/REPAIR) (DATE AND SIGNATURE)
Note: Please maintain inspection/maintenance report with SPPP.
FORM D

EMPLOYEE EDUCATION AND TRAINING OUTLINE
The following elements are part of the Employee Stormwater Pollution Prevention Training
Program:
■ GE/GNF Wilmington facility policy.
■ Spill prevention and response procedures.
■ Pollution control laws and regulations.
i. Chemical spill--reportable quantity.
ii. Duty to report.
iii. Duty to mitigate pollution of all kinds.
■ Good housekeeping and material management practices.
■ Facility features and operation designed to minimize stormwater pollution.
■ Inspection responsibility.
■ Reporting procedure.
■ Follow-up policy.
■ The rights and duties of employees as set forth in the law.
■ Pollution prevention measures.
■ Inspection requirements/responsibilities.
■ Reporting procedure.
FORM E

EMPLOYEE EDUCATION AND TRAINING
hereby certify that the employees listed below have
(Instructor's Name)
undergone the Employee Stormwater Pollution Prevention Training Program at the GNF-Americas/GE
Nuclear Energy/GE Aircraft Engines-Wilmington,North Carolina facility on . The program
included the elements shown on the Employee Education and Training Outline.
Instructor's Signature Date
List of Attendees
Attendee Social Security Number Si
-
FORM E (continued)

ANALYSIS REQUEST FORM
GNF-Americas/GE Nuclear Energy/GE Aircraft Engines
Wilmington, North Carolina
Total Volume Preservative
Parameter Number Required Vessel Added Holding Time
NH3 and N 3 Full Bottle Bottles 1,35 Y 48 hrs
Nitrite+Nitrate 3 Full Bottle Bottles 1,35 Y 48 hrs
(NO2+NO3)
Total Fluoride 3 Full Bottle Bottles 2A6 N 28 days
Anticipated Sampling Date:
FORM G

CHAIN-OF-CUSTODY RECORD FOR STORMWATER SAMPLING
GNF-Americas/GE Nuclear Energy/GE Aircraft Engines
Wilmington, North Carolina
DATE TIME SITE # SAMPLE #'S COMMENTS SAMPLER'S NAME
Relinquished By (Signed) Representing Date/Time Received By (Signed) Representing Date/Time
Relinquished By (Signed) Representing Date/Time Received By (Signed) Representing Date/Time
FORM H

FIELD DATA SHEET
GNF-Americas/GE Nuclear Energy/GE Aircraft Engines
Wilmington, North Carolina
MONITORING LOCATION: DATE:
SAMPLER(S): TIME:
RAINFALL START: RAINFALL END: RAINFALL DEPTH:
SAMPLE METHOD: NUMBER OF GRAB SAMPLES:
HAND
AUTOMATIC SAMPLER
VISUAL OBSERVATIONS:
COLOR:
FOAM:
OIL/GREASE SHEEN:
OTHER OBSERVATIONS:
SAMPLING CREW SIGNATURE(S):
FORM

Outfall Date 50050 1051 530 552 400
Total Total Lead, Non-Polar
No. Sample Total Total Susp. Oil& H
Rainfall
Collected Flow(if Recoverab Solids p
a le Grease
mo/dd/yr MG inches mg/l mg/l mg/l S.U.
9 4/23/2018 2.67 <5.0 *<25 <5.4 7.2
9 4/23/2018 2.67 <5.0 *<25 <5.4 7.2
Duplicate
13i 4/23/2018 2.67 <5.0 *<25 <4.9 7.2
15i 4/23/2018 2.67 <5.0 *<25 <5.4 7.2
9 10/26/2018 1.96 0.003 7 <2.0 7
9 10/26/2018 1.96 0.003 5 <2.0 7
Duplicate
13i 10/26/2018 1.96 <0.001 4 <2.0 7.1
15i 10/26/2018 1.96 <0.001 4 <2.0 7
9 4/2/2019 1.26 0.002 <4.0 <5.0 7.3
9 Duplicate 4/2/2019 1.26 0.002 <4.0 <5.0 7.3
13i 4/2/2019 1.26 <0.001 4 <5.0 7.2
15i 4/2/2019 1.26 <0.001 <4.0 <5.0 6.9
9 11/5/2019 1.1 0.00127 ND ND 7.1
9 Duplicate 11/5/2019 1.1 0.00131 ND ND 7.1
13i 11/5/2019 1.1 0.00143 14.8 ND 7
15i 11/5/2019 1.1 0.001 13.7 ND 7.1
9 3/31/2020 0.61 ND 6.57 ND 7.1
9 Duplicate 3/31/2020 0.61 0.00267 4.8 ND 7.1
13i 3/31/2020 0.61 ND 5 ND 7
15i 3/31/2020 0.61 ND 8.33 ND 7
9 11/6/2020 0.03 ND 6.09 ND 7.3
9 Duplicate 11/6/2020 0.03 ND 6.63 ND 7.3
13i 11/6/2020 0.03 ND 8.4 ND 6.7
15i 11/6/2020 0.03 ND 3.13 ND 6.5
9 5/7/2021 0.93 4.03 5.5 <6.25 6.93
9 Duplicate 5/7/2021 0.93 3.85 5.11 <6.25 6.93
13i 5/7/2021 1 0.93 1 <2 7.73 <5.88 7.67
15i 5/7/2021 1 0.93 1 <2 25.6 <5.88 7.25

9 9/7/2021 1.5 ND 3.1 ND 7.12
9 Duplicate 9/7/2021 1.5 ND 3.1 ND 7.12
13i 9/7/2021 1.5 ND 2.9 ND 7
15i 9/7/2021 1.5 ND 18.2 ND 7
9 3/10/2022 0.37 ND 2.9 ND 7.51
9 Duplicate 3/10/2022 0.37 ND 2.8 ND 7.51
13i 3/10/2022 0.37 ND 6.27 ND 6.95
15i 3/10/2022 0.37 ND 8.2 ND 6.94
9 10/13/2022 0.29 7.87 ND ND 7.69
9 Duplicate 10/13/2022 0.29 8.58 ND ND 7.54
13i 10/13/2022 0.29 ND ND ND 6.23
15i 10/13/2022 0.29 ND 5.83 ND 6.67

+ �.Mort�� olErsa
State of North Carolina
Division of Environmental Health Micttae,F.Easley,
i Terry L. Pierce, Director
Department of Environment and
Radiation Protection Section Natural Resources
Wisimof Miam G.Ross,Secretary
v vnutdt xeaHealtht En . Beverly O. Hall, Chief
a
To: Kelly Johnson, Environmental Engineer
DWQ Storm Water Permitting Unit
From: Beverly O. Hall, Chief
Radiation Protection Section
Re: Storm Water Protection Permit Benchmark for Uranium
Date: February 28. 2007
RECOMMENDATION:
Based on discussions with representatives of the U.S. Nuclear Regulatory Commission (USNRC), Storm Water
Protection (SWP) and Global Nuclear Fuels (GNF), I believe we are well founded in making the following
recommendation concerning the SWP Permit for the Wilmington fuel facility:
• Benchmark for Uranium: 300 pCi/1 based on the effluent limits in Table 2, Column 2 of Appendix B to
10 CFR Part 20, with a compliance point at a location representative of the site boundary.
• Sampling Protocol: One representative sample per year to be collected during a runoff event meeting the
guidance established by the SWP Section. The representative sample location being an outfall beyond
the site darn which is a central collection point for site storm water.
BASIS:
The activities through which any Uranium would reach the environment from GNF facility in Wilmington are
regulated under a license issued by the USNRC. As a result;the USNRC retains exclusive federal jurisdiction
for radioactive materials within the site boundary unless such materials are not directly covered by the USNRC
license. Since the radioactive materials that could potentially appear in storm water runoff are covered by the
USNRC license. the effluent is subject to the requirements of Table 2 Column 2 of Appendix B to 10 CFR Part
20 under the current facility license.
The original benchmark of 30 ppb proposed by SWP was based on the drinking water standard. This limit is
commensurate with the levels in Table 3 of Appendix B to 10 CFR Part 20; however, Table 3 is for the average
concentration of radioactive materials in water discharged to the sanitary sewer, which assumed additional
treatment would occur prior to release of the water back to the environment. The effluent in question is not
discharged to the sanitary sewer, so the value in Table 2 Column 2 for general effluent release is more
appropriate.
The Radiation Protection Section (RPS) maintains a high level of confidence in the USNRC's ability to(I
effectively regulate this facility under the existing license; however, in the interest of good stewardship on the
parts of the interested state agencies and GNF as a stakeholder, we believe that an agreement can be reached
under the terms listed in the recommendation above.
1645 Mail Service Center, Raleigh, North Carolina 27699-1645 ne
Phone[phone] / Fax [phone]$ orthCarofina
http:/twww_ncradiation.net Aaturally
An Equa$Opportunity!A1Tn native Acton Employer

Any storm water effluent levels reaching or exceeding the benchmark would be subject to regulatory oversight
by the USNRC_ Any actions taken by GNF to comply with the USNRC regulatory limit would likely satisfy the
requirements of the documented pollution prevention plan required by SWP if a benchmark has been exceeded.
In addition. GNF has an extensive decommissioning plan, which includes guaranteed funding_ This plan
ensures that the entire site. including any identified offsite locations with radioactive materials in concentrations
greater than those expected and likely to cause the highest exposed individual to receive 25 rnWyr, will be
remediated before the site can be released for either restricted or unrestricted use.
Taking all of these factors into consideration leads me to believe that we can get a cooperative agreement with
GNF to comply with the permit proposed by SWP under the reasonable terms outlined in the recommendation.
If we are not successful in achieving this cooperative agreement, l would suggest that we work with the
USNRC to get storm water runoff sampling/testing added to the required tests for effluents identified in the
GNF license. [� $Y- CnF o ComQt� W ki H Q
16v (—Jo 0aw1zC- �"mI'r
a�Ct,z ctiR Carnes \ o 'A EL -
Cc: Lee Cox, Manager Radioactive Materials Branch
Dale Dusenbury, Manager Emergency Response & Environmental Branch
Robin Haden, Nuclear Engineer
Mike A. Kelly, Deputy Director DEH
Robert Trojanowski, Regional State Liaison Officer, NRC Region 11
Allen Mabry, GNF
* Dale Dusenbury has the calculations and other technical data supporting the RPS recommendation. They are
available upon request.

Reference Mass based values in Activity based Basis
m and ppb values(See Note)
SWP Section 0.03 mg/L 30 pCi/L (See Note) Based on Kidney
30 ppb toxicity
RPS N/A 300 pCi/L < 100 mrem dose—
(Same as NRC General Public in
Table 2. Column 2) 10 CFR 20
NRC NIA 3000 pCi/L 500 mrem dose
(Effluent to Sewer's limit Based on
Value) Appendix B to 10
CFR 20
Note : (1pCi/I µg) Uranium mass to activity conversion Factor is used to find
Equivalent Activity(pCi/L) from mg/L U values. The 1pCi/lµg factor uses EPA
conversion factor as an approximation for natural uranium with 99.993% U-238.. See
EPA December 2000 Radionuclides Rule for Drinking Water FR Vol.65,num.236
p.76713. Limiting, activity values taken from Table 2 column 2 and from Table 3 in 10
CFR 20 Appendix B based on U-238 values alone. Units are µCi/mL for fluid volume. .
Basis Calculations
Standard suggested in Stormwater Permitting e-mail-0.03 mg/L based on EPA Maximum
Contaminant Level based on kidney toxicity(see December 2000 Radionuclides Rule for
Drinking Water FR Vo1.65,num.236 p.76714)
0.03 mg/L X 1000 ppb-L/mg=30 ppb
Lower limit proposed by SWP converted to activity units
0.03 m X 103 m = 30 /L X 1 Cil = 30 pCi/L
� µFA � µg P µ�
Values from Appendix B in 10 CFR 20 are based on internal dose modeling and dose
conversion factors found in Report 30 of the ICRP(International Commission on
Radiation Protection.
RPS Proposed Limit based on 100 mrem dose limit to the public found in Table 2
Column 2 of 10 CFR 20 Appendix B
3 X I 0-'µCi/mL X 1000 mUL X 106 pCi/µCi=300 pCi/L
Upper Limit
NRC Sewer Limit values-Based on 500 mrem/yr. to public in Table 3 of Appendix B of
10 CFR 20
3 X 1 O-6µCi/mL X 1000 mL/L X 106 pCi/µCi=3000 pCM
BDD 3/2107Pinal calculation for stormwater

GNF Storm Water Permit
Subject: GNF Stonn Water Permit
From: Beverly Hall <[e-mail]>
Date: Thu 01 Mar 2007 10:42:53 -0500
To: Kelly P Johnson <[e-mail]>
CC: Lee Cox <[e-mail]>, Robin Haden<[e-mail]>. "Mabry, Allen M.
(GNF)" <[e-mail]>
Kelly,
Thank you for your providing the Radiation Protection Section the opportunity to
comment on the realistic benchmark values for Uranium in your storm water permitting
process for the Global Nuclear Fuels Facility.
I have attached RPS' s recommendation, and if you have any questions, please feel free
to contact me.
Sincerely,
Beverly 0. Hall
Beverly Hall <beverly.hallPncmail.net>
Section Chief
DENR/Division of Environmental Health
Radiation Protection Section
GNF Storm Water Permit-1.doc Content-Type: application/msword
Content-Encoding: base64
I of 1 3/2/2007 3:26 PM

11/15/22, 12:04 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
Limited Liability Company
Legal Name
Global Nuclear Fuel-Americas, LLC
Information
Sosld: 0515218
Status: Current-Active O
Date Formed: 12/29/1999
Citizenship: Foreign
State of Incorporation: DE
Annual Report Due Date: April 15th
Currentgnnual Report Status:
Registered Agent: CT Corporation System
Addresses
Reg Office Reg Mailing Mailing
160 Mine Lake Ct Ste 200 160 Mine Lake Ct Ste 200 191 Rosa Parks Street
Raleigh, NC 27615-6417 Raleigh, NC 27615-6417 Cincinnati, OH 45202
Principal Office
3901 Castle Hayne Road
Wilmington, NC 28402
Company Officials
All LLCs are managed by their managers pursuant to N.C.G.S. 57D-3-20.
Chief Operating Officer
Jay Wileman
3901 Castle Hayne Road
Wilmington NC 28402-2819
https://www.sosnc.gov/online_services/search/Business_Registration_ResuIts 1/2

11/15/22, 12:04 PM North Carolina Secretary of State Search Results
https://www.sosnc.gov/online_services/search/Business_Registration_ResuIts 2/2

GE Wilmington
Individual NPDES Stormwater
Permit Renewal Application
No. NCS000022
Submitted By
Karen Williams
EHS Specialist
910-547-2758
May 2018

1 �
GE Wilmington
14AY 3
� 2018
Individual NPDES Stormwater �A,iFRp � �,,,,
pp
Permit Renewal Application ��Ir/"rl
No. NCS000022
Submitted By
Karen Williams
EHS Specialist
910-547-2758
May 2018

GNMr
Global Nuclear Fuel
A Joint Venture of GE,Toshiha,&Hitachi
Global Nuclear Fuel—Americas,UC
3901 Castle Fayne Road,Wilmington,NC 28401
(910(547-2758(Mobile)
ka ren.W i ll iams @ge.com
May 25, 2018
SW Individual Permit Coverage Renewal
Stormwater Planning Program
1612 Mail Service Center STD'Clp
Raleigh, NC 27699-1612 �M�'✓�i1ERpQ gCll�,
rL11�ING
Subject: GE Wilmington NPDES Stormwater Permit Renewal Application
Permit Number: NCS000022
To Whom It May Concern:
The GE/ Global Nuclear Fuel —Americas (GNF-A) Wilmington, North Carolina facility (GE Wilmington) is
covered under NPDES Stormwater Permit No. NCS000022 for its stormwater discharges. This permit
expires on November 301h, 2018 and the permit renewal application is due by June 3rd, 2018 per permit
NCS000022, dated November 3rd, 2014
Attached are two copies of the NPDES stormwater permit renewal application and supplemental
information. In addition, a copy of the August 13th, 1991 DWQ letter is attached and authorizes
representative outfall status for Outfalls No. 9, 13, and 14. GNF-A respectfully requests continuation of
representative outfall status. GNF-A also notes that representative status was changed from old
Outfall No. 14 to the current Outfall No. 001 during the last permit renewal.
We appreciate the opportunity to submit this renewal application and hope that it meets your
approval. We are available to meet with you at your convenience to provide clarification on the
renewal application. Please contact Karen Williams at 910-547-2758 if further information is desired.
Sin � rely, ,
Ka e*ms1
ENS Specialist
Attachments: Original plus two copies

State of North Carolina 14
Department of Environment, Health, and"Natinal Resotmes
Division of Environmental Management
512 North Salisbury Street * Raleigh, North Carolina 276o4
James G. Martin, Governor George T. Eve=, Ph.D.
William W. Cobey,Jr_, Secretary August 13, 1991 Director
Herbert R. Strickler, Manager
Environmental Protection & Industrial Safety
Nuclear Fuel & Components Manufacturing
General Electric Company
P .O. Box 780
Wilmington, North Carolina 28402
SUBJECT: Request for Designation of Substantially Identical
Stormwatex Gutfalls
`A` Dear Mr. Strickler:
Your request dated July 19, 1991, for a determination that
stormwater effluents from certain outfalls on your site are
substantially identical at the Wilmington General Electric
facility, has been reviewed by members of the water Quality
Section -staff. You requested that outfall #j:9 be considered
typical of outfalls 1-8, 1.1, 12 and 17 and outfall #14,
containing runoff from road segments B and C, be considered
representative of the stormwater runoff from the access road
segments A, D, and E.
In addition to the above sampling locations and per your
discussions with Coleen Sullins, it is my understanding that the
stormwater outfall from the western most portion of the site
associated with the waste management areas (see attached Figure
5) will also be sampled for your permit application.
Additionally, it is my understanding that the stormwater drainage
associated with the bulk storage on the western side of the FMO
facility, is captured and treated in your process waste treatment
facility and therefore is not expected to be discharged into
outfalls #17 or #12 .
�\ I;;eg ww offices
Ashevilic Cayetteville Mooresvillc Raleigh Vkdiirq an Wihniftmn Winston-Salem
704r151-6208 9191466.154t 70U663-1699 9191733 2314 919J946-6481 9191395-3900 9191761-2351
Rellrreon Prevention Pays
PO. Box 29535, Raltigh,North Carolina 2762643535 Telephone [phone]

1
. 14a
TABLE i
STORM WATER DRAINAGE
SUBSTANTIALLY IDENTICAL AREAS-GE WILMINGTON
REFERENCE FIGURE 5 FOR OUTFALL LOCATION
AclWW1nlfn1ns yAm
Typtrd8tttlao� cawam
forla�rtd Pelntfor 13Ldk lquld BulkUatdd
Taw M M+0'K char ml wmu
Culfstl Ana 68=9 9ttud{n0 Equlprom attd tn.Ptioaru wum swags and starspa and Product Rlatatrrunsa Ababa Typr of
Luca lan 1000 ftr pad Lwd Ground Raul Storm. _Wlertsth mock l� Ynnslrr Tntntsr Starr At" Roach D4drutm•
1 5 1m 0 0 x S
2 x10 25 W xt x x x x X x c
5 3m 1s 23 00 x x x x c
4 110 0 im o C
5 m 10 10 60 x x x x g
a 15 20 50 7o x x x x sic
7 180 as S t0 x x X c
a 1.2w 20 25 50 x x x x x c
0 1.44 10 40 sd x x x x x x x x x c
�� 1a 40 0 100 a x x x B
11 20 5 w 45 x x c
12" 1,600 10 15 75 x x x x x x x c
1T 261i 10 40 SO x x x X x c
-S ONE€T FLOW;C a PIPS OR DITCH
-MS RRA[NAM AREA INCLUDES AN tlilxN RATCR PL%WrrED WMER RCRA;HAS NEV R BEEN USW TO9=NERATE FRCRA WASTES.
REVISED 7/30/91

A6 - A Permit Coverage
NCDENR Renewal Application Form NPDEN Permit Number
NCSO00022
National Pollutant Discharge Elimination System
Stormwater Individual Permit
.,,se provide your permit number in box in the upper right hand corner, complete the information in the space provided
below and return the completed renewal form along with the required supplemental information to the address indicated.
Owner Information * Address to which permit correspondence will be mailed
Owner/ Organization Name: Global Nuclear Fuel—Americas LLC
Owner Contact: Mr. Amir Vexler
Mailing Address: PO Box 780
Wilmington, NC 28402
Phone Number: 910-819-1964
Fax Number: N/A
E-mail address: [e-mail]
Facility Information
Facility Name: Wilmington—Castle Hayne Site
Facility Physical Address: 3901 Castle Hayne Road
Facility Contact: Karen Williams
Mailing Address: PO Box 780, M/C A-55
Wilmington, NC 28402
Phone Number: 910-547-2758
Fax Number:
E-mail address: [e-mail]
Permit Information
Permit Contact: Karen Williams
,moiling Address: PO Box 780 M C A-55
Wilmington, NC_28402
..one Number: 910-547-2758
Fax Number:
E-mail address: [e-mail]
Discharge Information
Receiving Stream: Northeast Cape Fear River & Prince George Creek
Stream Class: C; SW; HQW & C;Sw
Basin: Cape Fear River Basin
Sub-Basin: 03-06-23
Number of Outfalls: 18
Facility/Activity Changes Please describe below any changes to your facility or activities since issuance of your permit. Attached a
separate sheet if necessary.
See attached Supplemental Information, Section 5.
CERTIFICATION
I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief
such information is true, complete and accurate.
Signature " Date '/ /29/S
Amir Vaxlwr _ CFO GNE-A
Print or type name of person signing above Title
SW Individual Permit Coverage Renewal
Please return this completed application form Stormwater Permitting Program
and requested supplemental information to: 1612 Mail Service Center
Raleigh, North Carolina 27699-1612

CONTENTS
SUPPLEMENTAL
INFORMATION
NO. TITLE
1 SITE MAP
2 ANALYTICAL MONITORING
3 VISUAL MONITORING
4 BEST MANAGEMENT PRACTICES
5 SIGNIFICANT FACILITY CHANGES
6 STORMWATER POLLUTION PREVENTION PLAN
CERTIFICATION
n

SECTION NO. 1
SUPPLEMENTAL INFORMATION
"� SITE MAP

%-� SECTION NO. 1
SUPPLEMENTAL INFORMATION
SITE MAP
The GE Wilmington (GE-H Nuclear Energy / GE Aircraft Engine / Global Nuclear Fuel—
Americas) facility, located in Wilmington, North Carolina in the County of New Hanover,
encompasses approximately 1660 acres. The developed portions of the facility encompass
approximately 342 acres. Undeveloped portions of the facility, encompassing over 1300 acres,
are primarily forest or tidal areas. The attached Site Drainage and Significant Materials
Map (Drawing No. 8002E99) presents the location of the industrial activities, stormwater
drainage structures, drainage areas, outfalls, building locations, and roads for the developed
portions of the facility.
The GE Wilmington facility is bordered on the east by NC Highway 133, on the south by
Interstate I140, on the west by the Northeast Cape Fear River and on the north primarily by
undeveloped forestland. There are residential subdivisions to the northeast and southwest.
Stormwater discharges to two receiving water bodies: the Northeast Cape Fear River and Prince
George Creek. Neither is shown on the site map due to their distance from the developed
portion of the facility. The Northeast Cape Fear River, located less than 1 mile west of the
developed portion of the facility, receives the majority of the stormwater runoff, as well as
treated process and sanitary wastewaters permitted under NPDES Permit No. NC0001228.
Prince George Creek,located approximately 5 miles north of the facility,receives stormwater
runoff from the eastern portion of the facility.
There are seventeen storm water outfalls/drainage basins (1,2, 3,4, 5,6, 7, 8/8I, 9, 10, 11, 12,
13/13i, 14, 15/15i, 16 and 18) for the developed areas of the facility. It is noted that there is
no Outfall 17. Representative outfall status was granted by NC DWQ in a letter dated August
13, 1991 such that Outfalls#9,#13,and#14 were considered representative of all stormwater
outfalls at the facility. Prior to the last permit renewal, the Outfall 1 drainage basin was
redesigned and, with the last permit renewal, replaced Outfall 14 as representative of the
roadways and on-site parking.
Table 1 identifies the latitude and longitude, total drainage area, total impervious area, and
receiving water body for each outfall.
Table 2 presents the significant materials at GE Wilmington. These potential stormwater
sources are numbered by outfall and are shown on the Site Drainage and Significant Material
Map (Drawing No. 8002E99) using the source numbers from the first column of Table 2.
GE\Wilmington—NMES Smtmwater Permit Renewal Section 1
Page 1-1

Table 1 Drainage Basin Areas
Outfall Latitude Longitude Total area Impervious area Receiving water
number (acre) M
1 340 19'12" -77055'27" 39.8 33 Prince George Creek
2 340 19'15" -77055'28" 7.9 18 Prince George Creek
3 340 19'19" -77055'29" 2.8 41 Prince George Creek
4 34019'26" -7705536" 6.2 92 Prince George Creek
5 34°19'27" -7705541" 4.6 18 Prince George Creek
6 34019'24" -7705545" 1.3 68 NE Cape Fear River
7 34019'24" -77055'45" 4.9 100 NE Cape Fear River
8 34019'25" -77055'45" 20.6 82 NE Cape Fear River
8I 34019'26" -77055'48"
9 34019'28" -77055'58" 37.7 55 NE Cape Fear River
10 34019'38" -770564" 1.6 20 NE Cape Fear River
11 340 19'33" -77056 1" 4.1 55 NE Cape Fear River
12 340 19'39" -77056 11" 21.4 48 NE Cape Fear River
13 340 19'45" -77056'29" 66.7 23 NE Cape Fear River
.� 14 34019' -77055'30" 6.0 36 Prince George Creek
15 34019'31" -77055'37" 3.7 51 Prince George Creek
16 34019'36" -77056'51" 20.3 13 NE Cape Fear River
18 34019'46" 1 -77°56'8" 16.1 9 NE Cape Fear River
The following Outfalls are defined by the permit for sampling purposes. They are not unique
drainage areas but are subsets or combinations of the drainage areas listed above.
Outfall Latitude Longitude Total area Impervious area Receiving water
Number (acre) M
13i 34019'36" -77056'33 19.1 69 NE Cape Fear River
15i 34019'31" -77055'39" 71.0 37 Prince George Creek
GE\C Jmington—NPDPS Stnrmwatcr Pcrost Rcnma► Section 1
Page 1-2

Table 2: Signitwarlt Materials
Structural Control Measure Employed Management Practice
Source Significant Physical Load or Destin.of SW Runoff Method of SW Release
�
Number Materials Building Form Store Container Access
Dike Curb Roof Process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
OUTFALL I CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Sem i-Annual)
+OUTFALL CONDUCT.VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual)
2
3-;1 SCO-Chemical Storage SCO Liquid X Drums \ X X(Valved) X
(cast of bldy�
2-]I SCO Dumpstcrs(—4) SCO Solid X Dumpsters X X X(Valved) \
(cast of bldl}
OUTFALL 3 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
Annual)
)-A AF-5,000-gal Used Oil Als liquid X "Tame X X X X(Valved) X
Tank (east of bldoJ
i I?uuble-Walled Tank (east of bldg)13 Als-G,000-},.al Used Oil AL Liquid X Tank
Doubll walled X Dou61c-walled tank X(Valved) K(d(iuhlr-wall•J tank)
AIh:- 1t1,W)-gal Used Oil AL Duublc-walled
f" Double-Walled•Tank (cast of bld$0 Liquid X .hank X Double-walled tank X(Valved) X(Joublr-wallet tank)
ll 11':-300-gal Used Oil AE Liquid -Tank X X X(Valved) X
I(Naporator (cast o€bldg)
S-Is Al?Dumpsters(9) AE(east a bld Solid X Dumpstcr X l X(Valved)
Sire-221W-gal Diesel Duel Al: Liquid 1 Tank-Generator (cast of bldg) Liquid X -Tank X X(\'abed) X(Juu�lc-walled tank)
OUTFALL 4 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
Annual)
OUTFALL S CONDUCT VISUAL INSPECTION OF STORDIWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual)
GIs Wilminlptun—NPD]sS Stormwatcr Pcrmit Itencwal Page I of 10 May 27, 20-18
Supplemental Information Section No. 1,Table 2

Table 2: Signiticant Materials
Structural Control Measure Employed Management Practice
Source Destin.of SW Runoff Method of SW Release
Number' Significant BuiiJinh Pltysieal Load or
Materials " Form Store Container Access
Dike Curb Roof Process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
5-A Al:—Oil Storage:Building; Afi Liquid X Drums in X N \ X X X
(North of bldg.) building;
5-11 Al:Dumpstcrs(5) AV Solid X Dumpsters X N X N
(north of bldg)
5-C Al--'North Cooling"Fowcr i1F Liquid Cooling \ N N
(north of bldg) Tower
5-lD AE North Propylcnc Glycol AI> Liquid X Tank X X X
Tank (north( bldp)
OUTFALL 6 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
Annual)
AE'Southern Industrial AE?
G-A laydown Area (Wes[4bldy) Solid X None X N N N
OUTFALL 7 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual)
Vi-(2)Ethylene Glycol Al,"7-A Li
-Tanks (north of ble1g� yu!i \ Tanks(?) N \ N
741 At--Cooling;Tower Ali Liquid N Cording;
(nordi of bldg} Tmvcr
Computer Room Als Tank—double N y
7 I Eimergcnry Generator (north of bldgJ 1"0`l`"i X wall N N
Double Wall"Tank
OUTFALL CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
8/81 Annual)
S-A Metal Chips in Dempster A[' Solid X Dumps,r N x N Return to process X
(under roof) (NW of bldg
8-13 'Source Removed
GE Wilmington—NI'Dl.i'S Stonnwater permit Renewal Page 2 of 10 May 27, 2018
Supplemental Information Section No. 1,Table 2

Table 2: Signitwant Materials
Structural Control Measure Employed Management Practice
Source Significant Phcsic:+l Load or Destin.of SW Runoff Method of SW Release
Number' Materials Building Form Store Container Access
Dike Curb Roof process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
8-C Source Removed
8-D SCO Cafe Dumpstcrn(3) SCO Sotid X Duml)Stcr \ X(2) X(I X X
(west of bld�) closed)
,C' Cafctcria Grcasc SCo I,iLluid \ Metal Hw X X X
Accumulation Bin (west of bldu
5-I. Pro tone Glycol Tank West of G1`94) Li+uid X I'awk \ X X X X
PY Y Blgd l
West of(Al,90 Cooling
CooGnl;'fuwcr I,iyu�d X \ X X
BISd Towcr
OUTFAI-L 9 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
Annual)
X(containment
,I FCO-2,t)10-gal Sodium FCC) l.iyui,i X 'yank X X \ X X(to Pumped back to
I Iydroxide Solution"Tank (north of bldo process) process or Waste
Na011 tank
I<O-(2)4,800-h tl&(?} FC(7 X(to
(containment
9-B 8,441tf-1 tl Waste ISteh Acid (north of bldl� J-itluid X Tanks{4} X X X \ X process) pumped back to
Tanks4 total Waste Acid tank
��C FCO-14,I1(N)-gal Waste FCO Liquid X Tank X X \ \ X(to X(Copumpntainment
back to
Coolant'rank (north ofbld� Process) tank
Fl:() $IIINI-lnl Nitric Acid X to
X containment
! !'ank (north of 61do Liquid X Conk X X X \ \ Pr� „) pumped back to
Waste Acid tank
I-CO-5,4)wf-gat FCO 'Tank-double X X \ X(containment
11 drofhtoric Acid Tank Li uid X X X(to
y (north of bldl;) N wail pumped back to
Double Wall"yank prtx�s,) Waste Acid tank)
FC0-5,000-hn!Waste hCO
9-1 r Sodium I lydroside Solution (north of bldl) Litluid X 'Tank X X \ X X X(to process)
Tani
L— �
inment
y 4. 11C0-2,000-gal Alkaline FCO Littuid X T:111 X \ \ X X(to [pumpedbacKto
Cleaner(15"u)'rank (north of bldF) process) r Waste
foal:
C ili Wilminlnon—NPDFS Stormwater Pcmtit Renewal Page 3 of 10 May 27, 2018
Supplemental Information Section No. 1,Table 2

Table 2: Signi>Ant Materials
Structural Control Measure Employed Management Practice
Source Significant Physical Load or Destin.of SW Runoff Method of SW Release
Number Materials Building Form Store Container Access
Dike Curb Roof Process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
FCO-400-gal Nitric Acid FCO X(to X(containment
9-11 Tank (north of bldg) Liquid X Tank X X X X X process) pumped back to
Waste Acid tank)
FCO-50-gal I lydrofluorie FCO X(to X(containment
l Acid Tank (north of bld1� Liquid X Tank X X X X X process) pumped back to
Waste Acid tank)
9'I FCO-Alkaline Cleaner FCO Solid X Drums on X X X X(to process)
(NaOI4 Drums(-12) (north of bldg) Pallets
9 K I-CO-Scrap Metal FCO Solid X Dumpstcr X X X(to
Dumpster(s) (north of bldo, process)
9-1. FCO-%ircaloy Chips in FCO Solid X Drums with X X X X
Drums(2)(not in service) (north of bldg) lids on pallet
9-M Source removed
Site-17W-gal Diesel Fuel Site
9-N Tank-Generator (east of FMO liquid X 'Tank X X X X
bldg)
Site-Flammable Site Cans in
9-0 Liquid/Paint Storage (west of Site liquid X Building X Now contained in above ground building—no stormwater exposure
Building Maint.)
Site-119-gal Diesel Fucl Site Tank—double X X(drain
9-1 Tank-Generator (at Water Liquid X wall X X openi
Tower) Double Wall Tank
Site-210-gal Diesel Fuel Site Tank—double X
9-Q Tank-Generator (at Water Liquid X wall X X X
Tower) Double Wall'I'ank
9-R NU Cafc Dumpster New Cafeteria Solid X Dumpster X X X X
9-S FCO West Dumpstcrs(-3) FCO(West of Solid X Roll-off X X X
building)
9-T NE SIC Dumpster SIC Nuclear Solid X Dumpster X X X
p' Yard p
9-U Source RLmoved
GL Wilmington—NPDGS Stomtwater Permit Renewal Page 4 of 10 May 27,2018
Supplemental Information Section No. 1,Table 2

Table 2: SigniittAnt Materials
Structural Control Measure Employed Management Practice
Source' Significant Phvsical Load or Destin.of SW Runoff Method of SW Release
Number Materials Building Form Store Container Access
Dike Curb Roof Process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
FMO South Dum viers South casmtc
�)-V p' solid X Dum titer X X }
(-2) comer of FMO
P'
9-W FCO I TVAC C:ooling`I'owcr North side of Liquid X Cooling X \ X X
FCC) "Tower Sump
FCO Process Cooling North Ccntral Coy>Lng x
-X 'Power side of f CO Liquid X Tower Sump (1'o Process)
Bast side of Cooling
9-Y FMO East Cooling Tower FMO Liquid X Power Sump, X \ X X X
Plastic Tanks
Metal Bin,w/
South of new lid
9-% NU Cafe Grea,c Bin eafereria l.iyuid `( containment
tote
South of I IF Cooling
9-AA DCP Cooling Tower Building Liquid X T ewer Sump, X
Plastic Tanks
9-BB FMO IT Dumpstcr South of FMO timid X Dumpstcr
OUTFALL 10 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
Annual)
In Site-Sulfuric Acid Tank Sitc
1 (Ou!oJ.S'errrce) (Last of aeration Liquid X Tank X X X X(diked area) X(diked area)
basin)
Sitc
to-B Site-Sulfuric Acid Tank (east of aeration Litluid X 2x Wall Tank X X \ `C(to
basin) process)
OUTFALL 11 CONDUCT VISUAL INSPECTION OF STORM`,tVATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
Annual)
Site-Scrap MctalJRccycle ( Site Dumpstcr
33-A south of Solid )C ,
Dumpstcrs(-10) so rolloff X X
31-B Source Removed
Site-4,0oo-1m1 Gasoline& Site
I 1-C, 5W-gal Dicscl Fuel Tanks (north of 1,1'-1uid X Tanks(2) X X X \ X
warehouse)
GL Wilmington—N I'D FS Stormwatcr Pcrmit Renewal Page 5 of 10 May 27, 2018
Supplemental Information Section No. 1,Table 2

Table 2: Signill,.;ant Materials
Structural Control Measure Employed Management Practice
Source Significant P Destin.of SW Runoff Method of SW Release
h}'sical Load or
Number' Materials Building Form Store Container Access
Dike Curb Roof Process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
Site-Chemical Rcecwin S r- SiCe Nu runoff from
l l-b (west of Various \ Various X storage;Inside X X Only runoff is from X
Stored Inside Building building access
warchousc) Building
.Sourcing.Sourcing-Chemica West OIls stored Liquid or
l I-Is outside warchousc Sourcing Solid X Various X X
Warchousc
11-1; Sourcing Dumpster West of Sol J X Dumpstcr X X
Sourcing Bldg
OUTFALL 12 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
Annual)
Site-RCRA I laz Waste Site No runoff from
12-A Storage (Inside Controlled (west of Liquid X Drums X storage;Inside X X(Only runoff is From
Accc.ss Buildin c warchsc) Builclin. loading/unloa(ling)
Site-Chemical and Oil Site No runoff from
from
12-k Storage (Inside Controlled (west of Liquid ar x Drums/ X storage;Inside \ X(Only runoff is
unloading)
Access Building) warehse) Granular Bafh/Can, Building loading/unloadin};)
FMO-(3)Nitric Acid FMO(south- None-
12-t yanks(not in use) West
f FNIO ",-PLY 'Tanks(3) X X X(to process)
FMO(;outh-
12-1) FMO-Salt Brinc'l'ank West of FMO Rc>,n X 'yank X Double-walled tank X X(to process)
bldg)
FMO-Ammonium FhfO(south-
Fluotide Sol'n Tank Tank(Out of N/At2 1 (ViOG bl) west d FMO None Service) 'Tank out of service X \ X(to process)
(Owl a/.S'enrcr
}}
Fn{O-Ammonium Nitrate FMO(sourh-
Sol'n Tank Tank(Out of N/A1_f (V 103) rues[of, Liquid Service) Trunk out of service X X X(to process)
Put 01-Senir) bldg7
FA{O—Used Oil Scorn c FMO(south- Drum in
12-G , 1 West of FMO Liquid \ X \ X X
[ad (Up to 12 drums) bidg) overpack
FMO-(2)1 lydrofluorie f'MO(snuth- N/A
1211 'Tanks West of FMO Liquid Tanks(Out of I-ank out of X \
(Out n/.S�enrct) bldg) tiervicc) serriec
12-1 Source Removed
GIs Wilmington—NPDES Stormwater permit Rcmwal Page 6 of 10 May 27, 2018
Supplemental Information Section No. 1,Table 2

Table 2: Signitwant Materials
Structural Control Measure Employed Management Practice
Source t Significant Physical Load or Destin.of SW Runoff Method of SW Release
Number Materials Building Form Access Container Access
Dike Curb Roof Process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
FMO-6W-Gal Used Oil
12-1 Incinerator Tank FMO(vest of Liquid X Wank X X X X
(Nat in xre—Su/'S7nr) I,NAO bld� (Not in ore)
12 K FMO-(2)Diesel()enerators FNIO(west of Liquid X Reservoir X X t Drains to Containment fur X
(55-gal oil reservoir/each) WO bld};} Source 12-0
1'MO-Uranium FNIO(West of
12-1, Compounds in cylinders. FMO bld S'lul X Steel cylinder X X X
FMO-500-gml Fuel(ail FMO(West of IJuuble-Wallcd
1�'M Double-Wallcd Tank-To 1,MO bldg} Liquid X Tank X Double-walled tank X X(double-willed tank)
Generator(elevated)
1 N FNIO-Oil/Lubricant Drum IWO(west of LiyuiJ X Drums X \ X
Storage FMO bldQ
FMO-2()AX)-Gal Fuel Oil FMO(west of
17() &5G5-Ial Kerosene'1'anks FMO bldp� I.iquiJ \ yanks{2} \ \ X
12-1' Sourcc Removed
12-R FNIO West Dumpstcn FNIO(west of „hl \ DumPstcr S \ X
bldg
12-S Fli"l'Dumpster West of FFT tirdtd X Dumpster X
Bldg
West side of Coaling
12-T FMO West Cooling Tower hMO 1.111ietl X Tower Sump, X \ \ X
Plastic Tanks
South side of Cooling
12-{) IncincratorCouiingTower lneincratur i 1L1uE11 X Tower Sump, X X
Plastic Tanks
OUTFALL 13 CONDUCT VISUAL INSPECTION OF STORAIWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Se")i-
Annual)
OUTFALL CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-
13i Annual)
GP.Wilmington—NI DF.S Stormwater Pemur Renewal Page 7 of 10 May 27, 2018
Supplemental Information Section No. 1,Table 2

l Table 2: Signiii..-ant Materials
Structural Control Measure Employed Management Practice
Source Significant Physical Load or Destin.of SW Runoff Method of SW Release
Number' Materials Building Form Store Container Access
Dr7te Curb Roof Process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
WT-Treated I Iydrofluoric Waste Treat/
13-AOI lank URI.S Liquid X Tank X X X X X(to process)
(WT V-911())
WT-I I drated Limc'fank Waste Treat/ Powder ttc
13-A112 (Wl'V-118) URLS Slurry X Tank X X X X(to process)
WI'-Treawd Plating&
Lteh Sludge Tanks Waste T Slud
reat/ Tanks(Out of N/A
13-A113 (WT V-115/V-113) URI.S ge Service) Tanks out of service X X X X(to process)
(Orrl ofSeniV)
13-A04 Source Removed
WI'-Calcium fluoride Waste Treat/ No runoff;Inside
13-AO5 (treated I IF)-Loaded URI S Filter Cake Truck Trailer X Building X X X(to process)
Inside Building
WT-Ammonium Nitrate
13-A116 Solution in Sump Waste Treat/ Liquid Truck Sump X X it(return n X(to basins)
(out of service) UR1S nitrate basins)
13-A117 Source Rcmoved
WT-Calcium Fluoride
13-AOH Sludge in Basins Waste Treat/ Sludge X Basins(2) X X X X(to process)
(empty,out of service) UIt1 ti
13-A09 Source Removed
WT-Ammonium Nitrate Waste"Treat/
13-AIO Solution in Basins URI S Liquid X Basins(2) X X X X(to process)
(out of service)
13-A13 Source removed
13-A14 Source Removed
WT-I lydrofluoric 10"'.
Waste Treat/
13-A26 Solution'l'ank URl S Liquid X Tank X X X X X(to proces)
(Wl V-81)11)
WT-Ammonium Nitrate
Solution Tank Waste Treat/ 'Tank(Out of N/A
13-A27 WT V-104) URI; Liquid Service) Tank out of seniee X X X X(to Process)
Out a/.Senrre
GE Wilmington—NPDLS Storrnwater Permit Rencwal Page 8 of 10 May 27,2018
Supplemental Information Section No. 1,Table 2

Table 2: Signitivant Materials
Structural Control Measure Employed Management Practice
Source Significant Physical Load or Destin.of SW Runoff Method of SW Release
Number' Materials Building Form Store Container Access
Dike Curb Roof Process WW Hold/Visual
Storm Drain Drain Direct Inspection
Before Release
13-A28 Waste Treatment Dumpstcr Waste Solid X Dumpstcr X \ X X
Treatment
W 1'/Uk2I.5-ti'nuth
l.mergency Control Valve Wastc Treat/ X (Can be
l i lil (Nnlu.Sewnr;77disi.ru URI.S N/;1 N/A N/A N!.1 \ X Closed) t
(.ilNtn7/
W I'/Llltl S-Wee
Fmcrgeney Control Valve Wastu Truat/ X (Can be
l3-B_ eila Soanx;Tbirtra Ul(1 ti N/A NIA N/A N/A \ X t
� Closed}
Ci�ntrn!
W l'/URI,S-Ea2sj
lLncrgcney Control Valve 1lraste'frcat/ X ((_;Lot be
IS li:i (Nola Saunr;Tbirrru URI ti N/l N/A N/A N%.1 S (;InsaJ}
l•' Clinton!)
V(fl'-Uranium Compound -wi/Sout1=,,t Solid X Nlctal Boscs
/Waste Box Storage of 1C`nsrc'I-rear Wood Bose,
13-U Site-285-Gal Diesel Fuel Site(cast of Ere Li uid X 'rank X \ \ X
'rank @[tire Pond pond) 9
H-F. Wtilt(,Dumpsters(-4) WSF(: I Solid X Dumpstcr \ X
OUTFALL 14 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual)
OUTFALL 1S CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual)
OUTFALL CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual)
15i
OUTFALL 16 CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Sethi-Annual)
OUTFALL IS CONDUCT VISUAL INSPECTION OF STORMWATER DURING RAIN EVENT/DOCUMENT CHARACTERISTICS(Semi-Annual)
Gloved
ltl-rl Dried/'Cre.atcd Sludge ]roecss lagoon supersack with
tiered X internal plastic Load under X N \ X
on pad. Basin Site liner and outer re=<rL �l'"�'1
to
718 B Source ltcmoved
(ill Wilmington—NPl]IsS Stormwater Permit Renewal Page 8 of 10 May 27, 2018
Supplemental Information Section No. 1,Table 2

Table 2: Signiti ant Materials
Structural Control Measure Employed Management Practice
Source Destin.of SW Runoff Method of SW Release
Significant Physical Load or
Number' Materials Building Form Store Container Access
Dt7ce Curb. .Roof VW Hold/Visual
Storm Drain P D s in Direct Inspection
Before Release
18-C Source Removed
Sanitary Sludge filtrate Process lagoon —1()()()G
18-D (Nut in service) Basin Site I''yO1d X filtrate Tank X X X
Sanitary Sludge Process Lagoon
18-[: Liquid X —6000 G"Tank X X X
(Not in service) Basin Site
Wastewater Process lagoon To Sanitary
18-1 (Not in scndee) Basin Site Liquid X —201N►G Tank X X Waste
18-(. Sanitary Sludge Process lagoon Liquid X —G(NN)G Tank X X X To Sanitary X
(Not in service) Basin Site Waste
18-1 I Source Removed
18-1 Source Removed
18 J Process lagoon Covered Filter Cake Drying Bed Soli) X X X X X
Basin Sitc building
Raw Sanitary Sewage Process Lagoon Liquid/
18 h (Not in service) Basin Site Slurry X Plastic"Tank X X X X
GL Wilmington—NPDLS Stormwater Permit RenCwal Page 10 of 10 May 27,2018
Supplemental Information Section No. 1,Table 2

SECTION NO. 2
SUPPLEMENTAL INFORMATION
,.., ANALYTICAL
MONITORING

/090%\ SECTION NO. 2
SUPPLEMENTAL INFORMATION
ANALYTICAL MONITORING
A summary of nine analytical monitoring events conducted during the term of the existing
permit is included on the subsequent pages. The permit requires analytical monitoring at three
representative outfalls (#9, #13, and #14), on a semi-annual basis, for the entire duration of
the permit. Samples were taken during a representative storm event. That is, grab samples
were collected during discharge of a rainfall event greater than 0.1 inches and preceded by at
least 72 hours in which no precipitation greater than 0.1 inches occurred. The following
parameters and storm characteristics were monitored
1. Lead,total recoverable (mg/L)
2. Non-Polar Oil and Grease (mg/L)
3. Total Suspended Solids (mg/L),
4. pH (standard units)
5. Total Rainfall(inches)
These values were reported to the Division on semi-annual Stormwater Discharge Outfall
(SDO) Monitoring Reports as required by the permit. For convenience, parameters 1-5 are
summarized on Table 3 for each of the monitored outfalls.
Additional monitoring for vehicle maintenance activities is not required for GE Wilrnington
because the site does not use more than 55 gallons of new motor oil per month when averaged
over the calendar year. GE conducts ongoing monitoring of it new motor oil usage to ensure
that it is below the threshold,and thus, exempt from additional monitoring.
emoN
GE\*dniingwn—NPDES Sconnwarer Pcnnst Renewal Section 2
Page 2-1

/00011, Outfall Date Sample Total Lead, TSS, Oil & Grease, pH,
Collected Rainfall, in. m /L m /L m /L S.U.
9 5/8/2015 0.58 0.0152 <25 <5.6 6.9
Duplicate <25 <5.3
13i 5/8/2015 0.58 <0.01 <25 <5.3 7.0
15i 5/8/2015 0.58 <0.01 <25 <5.8 6.9
9 11/19/2015 2.06 <0.01 <25 <5.74 7.4
Duplicate <0.01 <25 <5.09 7.4
13i 11/19/2015 2.06 <0.01 42 <6.04 7.4
15i 11/19/2015 2.06 <0.01 46 <5.32 6.8
9 5/12/2016 143 <0.006 <7.2 <1.78 7.8
Duplicate . <0.006 <7.2 <1.89 7.8
13i 5/12/2016 1.43 <0.006 24 <1.94 7.0
15i 5/12/2016 1.43 <0.006 10 <2.09 7.0
9 11/4/2016 012 <0.005 <25 <5.0 7.6
Duplicate . <0.005 <25 <5.0
13i 11/4/2016 0.12 <0.005 <25 <5.0 6.9
15i 11/4/2016 0.12 <0.005 <25 <5.0 7.0
9 3/31/2017 057 <0.005 <25 7.4 7.4
Duplicate . <0.005 <25 <5.6 7.4
13i 3/31/2017 0.57 <0.005 <25 <5.4 6.9
15i 3/31/2017 0.57 <0.005 <25 <5.8 7.0
9 8/28/2017 065 <0.005 *40.8 <5.6 6.8
Duplicate . <0.005 *40.8 <5.4 6.8
13i 8/28/2017 0.65 <0.005 *<25 <5.6 7.0
15i 8/28/2017 0.65 <0.005 *<25 <6.0 6.9
9 10/10/2017 0.07 ___ *<25 --- ---
Duplicate *<25
13i 10/10/2017 0.07 --- *<25 --- ---
15i 10/10/2017 0.07 --- *<25 --- ---
9 4/23/2018 267 <0.005 <25 <5.4 7.2
Duplicate . <0.005 <25 <5.4 7.2
13i 4/23/2018 2.67 <0.005 <25 1 <4.9 6.7
15i 4/23/2018 2.67 <0.005 <25 <5.4 7.2
* Due to lab error, TSS for sample pulled 8/28/2017 was analyzed out of hold time. Qualified
results received are reported. Replacement sample pulled 10/10/2017 and TSS results for
that date are also reported.
/"1
GC Wilmington NPDGS Stormwater Permit Renewal Section 2
Page 2-2

SECTION NO. 3
SUPPLEMENTAL INFORMATION
/106.1 VISUAL
MONITORING

000111�\ SECTION NO. 3
SUPPLEMENTAL INFORMATION
VISUAL MONITORING
Qualitative visual monitoring occurs at all stormwater outfalls each year on a semiannual
basis, once in the first half of the year between January 1 and June 30,and again in the
second half between July 1 and December 30. There is a minimum of 60 days between any
two monitoring events. Visual observation is conducted of the following characteristics:
color,odor, clarity, floating solids, suspended solids, foam, oil sheen,erosion and any other
indicator of stormwater pollution.
To facilitate the visual monitoring inspections,placards have been posted at all stormwater
outfalls.This ensures consistent location evaluation during visual monitoring,outfall
inspections,and non-stormwater discharge assessments.
Semi-annual outfall visual monitoring events are tracked in the Compliance Calendar. This
program alerts the GE owner of the task that the visual monitoring must occur,and the task
remains"open"until completed and closed in the system. The completed visual monitoring
results are maintained in that year's SWPPP binder.
The subsequent pages summarize the semi-annual visual monitoring results by outfall from
December 2014 through December 2017. As of this submittal, the 1H 2O18 qualitative
sampling has not been performed. The information has been summarized in the table based
on inspection reports and work order documentation. Values greater or equal to 3 are
investigated and documented in the SWPPP for that year.
P"1
GE Warrington—NPDFS Stormuater Pettnst Renewal Section 3
2)18 Supplemental Info SW Pemtit Appl.docx Page 3-1

Table 4: ,visual MO itoring Results
OUTL EROSION or
#ALL DATE INSPECTOR COLOR ODOR' CLARITYL FLOATING
SUSPENDED SOLIDS FOAMS S EIENB DEPOSITION OTHER
1 6/2/2015 F. Stroehmer Tannic NA 2 1 2 No No No NA
2 6/2/2015 F. Stroehmer Tannic NA 2 2 2 Yes No No Slight Foam
3 6/2/2015 F.Stroehmer Light Brown NA 2 1 2 No No No Pipe Rusted
4 6/2/2015 F.Stroehmer Clear NA 1 1 1 No No No NA
5 6/2/2015 F. Stroehmer Clear NA 1 1 1 No No No NA
6 6/2/2015 F. Stroehmer Clear NA 1 1 1 No No No NA
7 6/2/2015 F. Stroehmer Medium NA 4 2 4 No No No NA
Grey/Green
8 6/2/2015 F. Stroehmer Medium NA 4 2 4 No No No NA
Grey/Green
8i 6/2/2015 F. Stroehmer Medium NA 4 2 4 No No No NA
Grey/Green
9 6/2/2015 F. Stroehmer Medium
edi m NA 5 3 5 Yes No No Foam=4
10 6/2/2015 F. Stroehmer Clear NA 1 5 1 No No No Floating leaves
and grass
11 6/2/2015 F. Stroehmer Clear NA 1 4 2 No No No Debris in area
12 6/2/2015 F. Stroehmer Light Brown NA 3 1 3 Yes No No NA
13 6/2/2015 F. Stroehmer Light Grey NA 3 3 3 No No No NA
13i 6/2/2015 F. Stroehmer Light Brown NA 2 2 2 No No No NA
14 6/2/2015 F. Stroehmer Tannic NA 1 1 1 Yes No No Very Slight
Foam
15 6/2/2015 F. Stroehmer Dark Brown NA 4 3 3 Yes No No Slight Foam
15i 6/2/2015 F. Stroehmer Dark Browm NA 4 2 3 Yes No No Slight Foam-2
16 6/2/2015 F. Stroehmer Clear NA 2 3 2 No No No Solids=leaves,
pine needles
18 6/2/2015 F.Stroehmer Light Brown NA 1 2 1 No No No NA
1 9/25/2015 F. Stroehmer, None None 1 1 1 No No No ND
S. Fillmore
F. Stroehmer, Medium Outfall pipe
2 9/25/2015 S. Fillmore Yellow None 1 1 1 No No No completely
oxidized
Bacterial sheen
F.Stroehmer, Yes- in stagnant
3 9/25/2015 S. Fillmore Light Yellow None 2 1 2 No bacterial NO water. Outfall
pipe rusted
4 9/25/2015 F. Stroehmer, None None 1 1 1 No No No ND
S. Fillmore
GE'Wilmington—NMES Stormwatcr Pcmut Renewal Page 1 of 8 September 26,2011
Supplemental Information Section No. 3,Table 4

Table 4: )SUal W10 itoring Results
OUT#FALL DATE INSPECTOR COLOR ODOR' CLARITY2 FLOATINBOLTING S SSPENDED FOAMS S OIL
DEPOSITION EROSION or OTHER
Solids=
5 9/25/2015 F.Stroehmer,S. Fillmore None None 2 3 2 No No No vegetation and
trash
6 9/25/2015 F. Stroehmer, _ No flow from
S. Fillmore, outfall
Very light white
7 9/25/2015 F. Stroehmer, Medium None 5 1 5 Yes No No foam where
S. Fillmore Grey outfall meets
ditch
8 9/25/2015 F. Stroehmer, Medium None 5 1 5 No No No ND
S. Fillmore Grey
Si 9/25/2015 F. Stroehmer, Light Grey None 4 1 3 No No No ND
S. Fillmore
9 9/25/2015 F. Stroehmer, Clear None 1 1 1 No No No N/A
S. Fillmore
10 9/25/2015 F. Stroehmer, ___ ___ ___ ___ ___ ___ ___ --- No flow from
S. Fillmore outfall
Very small
11 9/25/2015 F. Stroehmer, None None 1 1 1 Yes No No presence of
S. Fillmore, white foam on
northern bank
12 9/25/2015 F.Stroehmer, Very light None 1 1 1 No No No ND
S. Fillmore yellow
13 9/25/2015 F.Stroehmer, Very light None 1 2 1 Yes No No ND
S. Fillmore yellow
13i 9/25/2015 F. Stroehmer, None None 1 1 1 No No No ND
S. Fillmore
F. Stroehmer, Very small
14 9/25/2015 S. Fillmore Light Yellow None 1 1 1 Yes No No floating clusters
of white foam
15 9/25/2015 F. Stroehmer, Light Yellow None 2 1 1 No No No ND
S. Fillmore
15i 9/25/2015 F. Stroehmer, Light Yellow None 2 1 1 No No No ND
S. Fillmore
16 9/25/2015 F. Stroehmer, None None 2 1 2 No No No ND
S. Fillmore
18 9/25/2015 F. Stroehmer, Very light None 1 1 1 No No No ND
S. Fillmore yellow
GF.Wilmington—NPDES Stormwater Permit Rcncwal Page 2 of 8 September 26,2011
Supplemental Information Section No. 3,Table 4

Table 4: )Sual Mo itoring Results
OUT#FALL DATE INSPECTOR COLOR ODOR' CLARITY2 FLOSOATIING S SPE INDEDDS4 FOAMS S EE OIL
DEPOSITION EROSION or OTHER
1 5/18/2016 F.Stroehmer, NA NA 1 1 1 No No No ND
S. Fillmore
2 5/18/2016 F. Stroehmer, Clear,light NA 1 1 1 No No No Outfall pipe
S. Fillmore yellow rusted
3 5/18/2016 F. Stroehmer, Clear,very NA 1 2 2 No No No Outfall pipe
S. Fillmore light yellow rusted
4 5/18/2016 F. Stroehmer, Clear,very NA 1 1 1 No No No NA
S. Fillmore light yellow
5 5/18/2016 F. Stroehmer, NA NA 1 2 2 No No No NA
S. Fillmore
6 5/18/2016 F.Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
7 5/18/2016 F.Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
8 5/18/2016 F.Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
8i 5/18/2016 F. Stroehmer, Clear,very NA 2 1 2 No No No NA
S. Fillmore light grey
Small(1"),white
9 5/18/2016 F. Stroehmer, NA NA 1 1 2 Yes No No colored foam
S. Fillmore bodies on
surface
10 5/18/2016 F. Stroehmer, Clear, light NA 2 2 2 No No No NA
S. Fillmore brown
11 5/18/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
12 5/18/2016 F. Stroehmer, Clear,very NA 2 1 2 No No No NA
S. Fillmore light yellow
13 5/18/2016 F.Stroehmer, Clear,very NA 1 2 1 No No No NA
S. Fillmore light yellow
13i 5/18/2016 F.Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
F. Stroehmer, Clear,very Small white
14 5/18/2016 S. Fillmore light yellow NA 2 3 2 Yes No No foam bodies(1")
on surface
15 5/18/2016 F. Stroehmer, Clear, very NA 1 1 2 No No No NA
S. Fillmore light yellow
GE WiUnini ton—NI'DEti Stormxvatcr Permit Renewal Page 3 of 8 September 26,2011
Supplemental Information Section No. 3,Table 4

Table 4: Asual Mo itoring Results
OUT�FALL DATE INSPECTOR COLOR ODOR' CLARITY2 FLOSOATIINGLIDS3 SUSPENDED SOLIDS4 FOAMS OIL EROSION or SHEENS DEPOSITION OTHER
Very small white
15i 5/18/2016 F. Stroehmer, Clear,very NA 1 1 2 Yes No No foam bodies
S. Fillmore light yellow (1/2")on
surface
16 5/18/2016 F. Stroehmer, NA NA 1 1 2 No No No NA
S. Fillmore
18 5/18/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
1 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
F. Stroehmer, NA NA 1 1 1 N Outfall pipe
2 12/6/2016 S. Fillmore o No Yes rusted
3 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No Yes Outfall pipe
S. Fillmore rusted
4 12/6/2016 F. Stroehmer, NA NA 2 1 2 No No No NA
S. Fillmore
5 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
6 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
7 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
8 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
8i 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
9 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No Yes Outfall pipe
S. Fillmore rusted
10 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
11 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
12 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
GI:Wilmington—NPDES Swrmwater fermi[Renewal Page 4 of 8 September 26,2011
Supplemental Information Section No. 3,Table 4

Table 4: )Sual Mo itoring Results
OUT#FALL DATE INSPECTOR COLOR ODOR' CLARITY2 FLOATINBOLTING SUSPEN SOLIDDED FOAMS S EE OIL
DEPOSITION EROSION or OTHER
13 12/6/2016 F.Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
13i 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
F. Stroehmer, Small(1")
14 12/6/2016 S. Fillmore NA NA 2 2 2 Yes No No white/yellow
foam bodies
F. Stroehmer, Small(1")white
15 12/6/2016 S. Fillmore Light yellow NA 3 1 3 Yes No No foam bodies
15i 12/6/2016 F. Stroehmer, Light yellow NA 3 1 3 Yes No No Small(1")white
S. Fillmore foam bodies
16 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
18 12/6/2016 F. Stroehmer, NA NA 1 1 1 No No No NA
S. Fillmore
1 6/5/2017 F.Stroehmer NA NA 1 1 1 No No No NA
2 6/5/2017 F. Stroehmer NA NA 1 1 1 No No Yes Rusted outfall
pipe
3 6/5/2017 F. Stroehmer NA NA 1 1 1 No No Yes Rusted outfall
pipe
4 6/5/2017 F. Stroehmer NA NA 2 1 1 No No No NA
5 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
6 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
7 6/5/2017 F.Stroehmer NA NA 1 1 1 No No No NA
8 6/5/2017 F.Stroehmer NA NA 1 1 1 No No No NA
8i 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
9 6/5/2017 F. Stroehmer NA NA 1 2 1 No No Yes Rusted outfall
pipe
10 6/5/2017 F. Stroehmer --- --- --- --- --- --- --- --- Outfall dry
11 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
12 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
GE Wilmington—N13DES Stor mvater Permit Rene\Val Page 5 of 8 September 26,2011
Supplemental Information Section No. 3,Table 4

Table 4: )Sual Mo itoring Results
OUTFALL DATE INSPECTOR COLOR ODOR' CLARITY2 FLOATING SUSPENDED FOAMS OIL EROSION or OTHER
# SOLIDS3 SOLIDS° SHEEN6 DEPOSITION
13 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
13i 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
14 6/5/2017 F. Stroehmer NA NA 2 1 2 No No No NA
15 6/5/2017 F. Stroehmer Light Yellow NA 2 1 2 No No No NA
15i 6/5/2017 F. Stroehmer Light Yellow NA 2 1 2 No No No NA
16 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
18 6/5/2017 F. Stroehmer NA NA 1 1 1 No No No NA
1 12/7/2017 F.Stroehmer NA NA 1 2 1 No No No NA
2 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No Rusted outfall
pipe
3 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No Rusted outfall
pipe
4 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
5 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
6 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
7 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
8 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
8i 12/7/2017 F.Stroehmer NA NA 1 1 1 No No No NA
9 12/7/2017 F.Stroehmer NA NA 2 1 2 No No Yes Rusted outfall
Pipe
10 12/7/2017 F. Stroehmer --- --- --- --- --- --- --- --- Outfall dry
GE Wilmington—NPDES Stonnwatcr Pcrmit Renewal Page 6 of 8 September 26,2011
Supplemental Information Section No. 3,Table 4

Table 4: )Sual Mo itoring Results
OUTFALL DATE INSPECTOR COLOR ODOR' CLARITY2 BOLTING SUSPEND FLOATIN SOLIDSED FOAMS S EE OIL
DEPOSITION EROSION or OTHER
11 12/7/2017 F. Stroehmer NA NA 2 1 1 No No No NA
12 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
13 12/7/2017 F.Stroehmer NA NA 1 1 1 No No No NA
13i 12/7/2017 F.Stroehmer NA NA 1 1 1 No No No NA
14 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
15 12/7/2017 F. Stroehmer Very light NA 2 1 2 No No No NA
yellow/clear
15i 12/7/2017 F. Stroehmer Light yellow NA 2 1 2 No No No NA
16 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
18 12/7/2017 F. Stroehmer NA NA 1 1 1 No No No NA
1 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
2 5/15/2018 F. Stroehmer NA NA 1 1 1 No No Yes Rusty Outfall
Pipe
3 5/15/2018 F. Stroehmer NA NA 1 2 1 No No No Rusty Outfall
Pipe
4 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
5 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
6 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
7 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
8 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
8i 5/15/2018 F.Stroehmer NA NA 1 1 1 No No No NA
9 5/15/2018 F. Stroehmer NA NA 2 2 2 No No Yes Outfall Pipe
Rusted
GIs Wilmington—MIMS Stocmwatcr Permit Renewal Page 7 of 8 September 26,2011
Supplemental Information Section No. 3,Table 4

Table 4: )Sual Mo itoring Results
OUTFALL DATE INSPECTOR COLOR ODOR' CLARITY2 BOLTING SUSPEND FLOATIN SOLIDSED FOAMS S EE OIL
DEPOSITION EROSION or OTHER
10 5/15/2018 F. Stroehmer --- --- --- --- --- --- --- --- Dry,no flow
11 5/15/2018 F. Stroehmer NA NA 1 2 1 No No No NA
12 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
13 5/15/2018 F. Stroehmer NA NA 2 1 1 No No No NA
13i 5/15/2018 F.Stroehmer NA NA 1 1 1 No No No NA
14 5/15/2018 F.Stroehmer NA NA 1 1 1 No No No NA
15 5/15/2018 F.Stroehmer NA NA 1 2 1 No No No NA
15i 5/15/2018 F. Stroehmer NA NA 1 2 1 No No No NA
16 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
18 5/15/2018 F. Stroehmer NA NA 1 1 1 No No No NA
' Odor: Inspectors used a variety of designations for No Odor including"None", "NA" = none.
2 Clarity: Rated 1-5 with 1 = Clear and 5 = Very Cloudy.
Floating Solids: Rated 1-5 with 1 = no solids and surface covered with floating solids.
a Floating Solids: Rated 1-5 with 1 = no solids and surface covered with floating solids.
5 Foam: Inspectors used a variety of designations including"Yes","No" and ratings of 1-5 with 1 = no foam and 5 = complete foam coverage.
Oil Sheen: Inspectors designate "Yes" or"No"visible sheen.
"NA" Inspector indicates none. No odor, no color, no other notes or observations.
"ND" indicates no description or comment written on the logsheet for this entry.
"---" = No water present to observe.
GE'Wilmington—NPDES Stormwater Permit Renewal Page 8 of 8 September 26,2011
Supplemental Information Section No. 3,Table 4

SECTION NO. 4
SUPPLEMENTAL INFORMATION
,� BEST MANAGEMENT
PRACTICES

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

eon,"\ completion of the inspection, any cleaning and repair activities, if needed, are documented.
Completion of the inspections, cleaning,and repairs are tracked electronically.
Specific inspection areas include:
■ Material handling and storage areas
■ Secondary containment areas
■ Stormwater outfalls
■ Catch basins and trench drains
■ Roofs and covers
■ Potential spills and areas of possible contamination
Outside Material Storage/Tanks/Secondary Containment
GE Wihnington's practices and activities related to outside material storage areas and
aboveground tanks are in place to prevent or minimize contact of significant materials with
stormwater. Many material storage areas are covered and/or have containment curbing or
grading. Aboveground tanks are in compliance with federal and state laws for containment,
integrity testing, overflow protection, and protective guards. Stormwater retained by the
curbing or dikes is visually inspected for contaminants prior to release.
BMPs currently in use:
■ Provide secondary containment for liquid storage
• Provide containment curbing, dikes,and/or grading
■ Cover materials to eliminate exposure to stormwater
■ Store materials on pallets or racks
■ Visually inspect stormwater retained by curbing/dikes/containment prior to
release
■ Move storage areas inside if possible
Material Handling
Material loading and unloading is typically conducted in areas designed to reduce potential
contact with stormwater. Loading areas for bulk chemical transfers are either: (1) contained
to allow visual inspection of stormwater prior to release,or(2) are graded to direct stormwater
to the process drain system for treatment prior to discharge. The stormwater is contained
during transfer operations by secondary containment, curbing, grading, trays, and/or drain
covers. Further,manual valves in the closed position have been installed in select storm drains.
Direct pipeline transfers are in place for several materials and waste streams. This method of
material transfer greatly reduces the potential of stormwater contamination.
There are detailed written guidelines on loading and unloading procedures in the Spill
Prevention Control and Countermeasures Plan.
Spill Prevention and Response
GE Wdrnington—NPDF.S Stormwater Purnit Renmal Section 4
Page 4-2

GE Wilmington has written procedures on spill prevention and response. These procedures
describe the protocol of responding to a spill and the individuals at the site who should be
contacted. The procedures are included in the facility Spill Prevention Control and
Countermeasures Plan and in the Radiological Contingency and Emergency Plan. Site staff
are trained on spill prevention and response.
Employee Train*
The Employee Education and Training Program is designed to familiarize key employees with
the intent and components of the Stormwater Pollution Prevention Plan. Training is provided
for employees involved in operations with the potential to affect stormwater.
Topics included in the training session include:
■ General stormwater awareness
■ How to use the Stormwater Pollution Prevention Plan
■ Chemical spill response procedures
■ Preventative maintenance
■ Inspection procedures
■ Materials management practices
• Good housekeeping measures
Sewer and Outfall Identification
There are three separate drainage collection systems at the facility:process wastewater,sanitary
wastewater, and stormwater. Sewer manhole covers and catch basins have been color-coded
to distinguish between these systems.
Also, as described previously, placards have been posted at all stormwater outfalls. This
ensures consistent location evaluation during visual monitoring, outfall inspections, and non-
stormwater discharge assessments.
GE ATmington—NME-1;Stormwater Permit Renewal Section 4
Page 4-3

SECTION NO. 5
SUPPLEMENTAL INFORMATION
SIGNIFICANT FACILITY
CHANGES

/00%� SECTION NO. 5
SUPPLEMENTAL INFORMATION
SIGNIFICANT FACILITY
CHANGES
Since the last application was submitted in 2011,several sources have been removed or changed
to minimize quantity or improve stormwater protections. Table 5 (below) summarizes these
changes by Outfall Area.
Table 5: Facility Changes
Outfall Change Summary
8 • Removed 2 sources (large storage tanks) (2015)
• Added 2 sources (Cooling Tower,Propylene tank 2016
9 • Installed new source—generator with double walled fuel tank 2012
10 • Replaced H2SO4 tank with significantly smaller, double walled tank. 2015
11 • Updated drainage area 2015
f^' 12 • Removed large potential source (Solvent Storage Building) (2012)
• Replaced 1 large cooling tower with 2 smaller cooling towers. New towers
have containment and drain to process sewers stem. 2016
13i • Added this outfall for sampling purposes 2015
15i • Added this outfall for sampling purposes.This location contains waters from
Outfalls 01, 02, 03, 04, 05, 14 and 15. 2015
18 • Permanently removed 7 sources from area (2012)
• Removed vulnerable source covered drying bed 2015
GE Wilmington—NPDES Stormwater permit Renewal Section 5
2118 Supplemental lnfo SXV Permit Appl.doca Page 5-1

SECTION NO. 6
SUPPLEMENTAL INFORMATION
STORMWATER
POLLUTION
PREVENTION PLAN
CERTIFICATION

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy,Mineral, and Land Resources—Stormwater Permitting
Facility Name: Wilmington-Castle Hayne Site
Permit Number: NCS000022
Location Address: 3901 Castle Hayne Road
Wilmington,NC 28401
County: New Hanover
"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
^� "1 certify that the SPPP has been developed,signed and retained at the named facility location,and the SPPP has been fully implemented
at this facility location in accordance with the terms and conditions of the stormwater discharge permit."
And
"I am aware that there are significant penalties for falsifying information,including the possibility of fines and imprisonment for knowing
violations."
Sign(according to permit signatory requirements)and return this Certification. DO NOT
SEND STORMWATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature \l Date -�-/Z-�—I e l8
L-
Amir Vexler [FO.GNF-A
Print or type name of person signing above Title
SPPP Certification 10/13

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
I. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, lab results, date sampled, and storm event data.
3. A summary of the Visual Monitoring results. Do not submit individual monitoring
reports. The summary can consist of a table including such items as outfall number,
parameters surveyed, observations, and date monitoring conducted.
4. A summary of the Best Management Practices utilized at the permitted facility.
Summary should consist of a short narrative description of each BMP's in place at
the facility. If the implementation of any BMP's is planned, please include
information on these BMP's.
5. A short narrative describing any significant changes in industrial activities at the
permitted facility. Significant changes could include the addition or deletion of
work processes, changes in material handling practices, changes in material storage
practices, and/or changes in the raw materials used by the facility.
6. Certification of the development and implementation of a Stormwater Pollution
Prevention Plan for the permitted facility (Sign and return attached form).
If the final year analytical monitoring of the existing permit term has not been completed
prior to filing the renewal submittal, then the last years monitoring results should be submitted
within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal
waiting on lab results) P
OENR-LAND QUA0Y
STORMWATER pERMIMNG

GE !El�nton
Individual NPDES Stormwater
Permit Renewal Application
No. NCS000022
Submitted By
Karen Williams
EHS Specialist
[phone]
30-May-18

Global Nuclear Fuel
A Joint Venture of GE,Toshiba,$Hitachi
Global Nuclear Fuel—Americas,LLC
3901 Castle Mayne Road,Wilmington,NC 28401
(910)547-275B(Mobile)
karen Williams@ge corn
May 25, 2018
SW Individual Permit Coverage Renewal
Stormwater Planning Program
1612 Mail Service Center
Raleigh, NC 27699-1612
Subject: GE Wilmington NPDES Stormwater Permit Renewal Application
Permit Number: NC5000022
To Whom It May Concern:
The GE/Global Nuclear Fuel—Americas (GNF-A)Wilmington, North Carolina facility (GE Wilmington) is
covered under NPDES Stormwater Permit No. NCS000022 for its stormwater discharges. This permit
expires on November 301h, 2018 and the permit renewal application is due by June 31d, 2018 per permit
NCS000022, dated November Ycl, 2014
Attached are two copies of the NPDES stormwater permit renewal application and supplemental
information. In addition, a copy of the August 131h, 1991 DWQ letter is attached and authorizes
representative outfall status for Outfalls No. 9, 13, and 14. GNF-A respectfully requests continuation of
representative outfall status. GNF-A also notes that representative status was changed from old
Outfall No. 14 to the current Outfall No. 001 during the last permit renewal.
We appreciate the opportunity to submit this renewal application and hope that it meets your
approval. We are available to meet with you at your convenience to provide clarification on the
renewal application. Please contact Karen Williams at 910-547-2758 if further information is desired.
Sincerely,
Karen Williams
EMS Specialist
Attachments: Original plus two copies

y� •
r
Stare of North Carolina
Department of Environment, Health, and Natural Resorm�s 4�
Division of Environments) Management:
512 North Salisbury Satvt a Raleigh, North Carolina 27604
James G. Martin, Governer Gcorge T. Eve= Ph.D.
William W. Cobey,Jr Secretary August 13, 1991 Ditecoor
Herbert R. Strickler, Manager
Environmental Protection & Industrial Safety
Nuclear Fuel & Components Manufacturing
General Electric Company
P .O. Box 780
Wilmington, North Carolina 28402
SUBJECT: Request for Designation of Substantially Identical
Stormwater Dutfalls
Dear Mr. Strickler:
Your request dated July 19, 1991, for a determination that
stormwater effluents from certain outfalls on your site are
substantially identical at the Wilmington General Electric
facility, has been reviewed by members of the Water Quality
Section staff. You requested that outfall #9 be considered
typical of outfalls 1-8, 11, 12 and 17 and outfall #14,
containing runoff from road segments B and C, be considered
representative of the stormwater runoff from the access road
segments A, D, and E.
In addition to the above sampling locations and per your
discussions with CoLeen Sullins, it is my understanding that the
stormwater outfall from the western most portion of the site
associated with the waste management areas (see attached Figure
S) will also be sampled for your permit application.
Additionally, it is my understanding that the stormwater drainage
associated with the bulk storage on the western side of the FMO
facility, is captured and treated in your process waste treatment
facility and therefore is not expected to be discharged into
outfalls #17 or #12.
Regional Offim
Asheville Fayetteville Mooresville Raleigh Washington Wilmingtoe WJMIGn-Salem
704051.62M 91914WIS41 704/663-1699 91W33-2314 91919464481 919M95-3900 919/761-2351
PaHution Prows won Pays
PA.Scot 29535, Raldgh,North Carolina 27626aS35 Telcphanc 919-733-7015
A_r....d f1.....,.-k., AFA.,I A—AOVW .Fmnlrnrr

August 13, 1991
NPDES Substantially Identical Effluents
Page Two
Based upon staff review and the above information, I have
concluded that the requested determination is warranted and in
accordance with 40 CFR 122 .21 (g) (7) authorize you to sample
outfalls #9, #14, and the waste treatment facility stormwater
discharge as stormwater discharges representative of your
operation for your NPDES stormwater permit application.
If you have any questions concerning this authorization, please
contact Coleen H. Sullins, Supervisor, Stormwater Group at
919/733-5083 .
Sincerely,
George T. Everett
cc: Coleen Sullins
David Adkins

- 14-
TABLE I
STORM WATER DRAINAGE
SUBSTANTIALLY IDENTICAL AREAS-GE WILMINGTON
REFERENCE FIGURE$FOR OUTFALL LOCATION
AdiwWf In DralM Awe
Tetrr M.e � far tn�xrNh a Pelettor sWClrhr�I B waLwuw
mb
Outran Area "'��Z+rr� Ilu0ale0 SqWPm-d srmf h- ooeea watls tilerq= slowle end Preautl Kmintenaj r Am.. TTae or
teallen 1000$1 Rom II dreund ibar &sr.s.. YalsriMa AlMerlsk TnneNr Trsnskr SleenOf Awe Acak ogrues•
1 s 1m a 0 x 9
2 000 25 ao 75 x x x x x X c
7 WN 1s 25 ao x x x x C
110 0 100 0 C
s a0 10 10 10 x x x x g
a 20 50 m x x x x SIC
7 180 as 5 10 x x x C
0 1,N0 23 a so x x x x X C
1 1.00 10 40 s0 x x x x x x x x X C
10 40 0 100 0 x x x S
11 20 a 50 Ii x x c
It" I,NO 10 1s 75 x x x x x x X C
17 20 10 40 s0 x x x x x C
-S.SHEET FLOW.CaPUSORWTCH
-TMs mumaE AREA INCWOES ANINWMATOe PMUMtNEO UNDER RUM HAS N01M OEM USED TO MMERATE P MA WASTES.
REVISED 7/30/9I

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�`�i► Permit Coverage NPDES Permit Number
NCDENR Renewal Application Form NCS000022
National Pollutant Discharge Elimination System
Stormwater Individual Permit
Please provide your permit number in box in the upper right hand corner, complete the information in the space provided
below and return the completed renewal form along with the required supplemental information to the address indicated.
Owner Information * Address to which permit correspondence MY be mailed
Owner/Organization Name: Global Nuclear Fuel—Americas LLC
Owner Contact: Mr.Amir Vexler
Mailing Address: PO Box 780
Wilmington, NC 28402
Phone Number: 910-819-1964
Fax Number: N/A
E-mail address: [e-mail]
Facility Information
Facility Name: Wilmington—Castle Hayne Site
Facility Physical Address: 3901 Castle Hayne Road
Facility Contact: Karen Williams
Mailing Address: PO Box 780, M/C A-55 -_
Wilmington, NC 28402
Phone Number: 910-547-2758
Fax Number:
E-mail address: [e-mail]
Permit Information
Permit Contact: Karen Williams
Mailing Address: PO Box 780 M C A-55
Wilmington, NC 28402
Phone Number: 910-547-2758
Fax Number: _
E-mail address: Karen.williamsage.com
Discharge Information
Receiving Stream: Northeast Cape Fear River & Prince George Creek_
Stream Class: C;SW HQWHQW & C;Sw _
Basin: Cape Fear River Basin
Sub-Basin: 03-06-23
Number of Outfalls: 18
Facility/Activity Changes Please describe below any changes to your facility or activities since issuance of your permit. Attached a
separate sheet if necessary.
See attached Supplemental Information, Section 5.
CERTIFICATION
I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief
such information is true, complete and accurate.
Signature Date -
it Veyler _ _ r'FCI� GNF-A
Print or type name of person signing above Title
Please return this completed application form SW Individual Permit Coverage RenewalStormwater Permitting Program
and requested supplemental information to: 1612 Mail Service Center
Raleigh, North Carolina 27699-1612

CONTENTS
SUPPLEMENTAL
INFORMATION
NO. TITLE
1 SITE MAP
2 ANALYTICAL MONITORING
3 VISUAL MONITORING
4 BEST MANAGEMENT PRACTICES
5 SIGNIFICANT FACILITY CHANGES
6 STORMWATER POLLUTION PREVENTION PLAN
CERTIFICATION

SECTION N0. 1
SUPPLEMENTAL INFORMATION
SITE MAP

SECTION NO. 1
SUPPLEMENTAL INFORMATION
SITE MAP
The GE \Vilrnington (GE-H Nuclear Energy- ,/ GE Aircraft Engine Global Nuclear Fuel —
Americas) facility, located in Wilmington, North Carolina in the County of New Hanover,
encompasses appro.ximatelc 1660 acres. The developed portions of the facility encompa,s
approximately 342 acres. Undeveloped portions of the facilm, encompassing over 1300 acres,
are primarily forest or tidal areas. The attached Site Drainage and Significant Materials
Map (Drawing No. 8002E99) presents the location of the industrial activities, stormwater
drainage structures, drainage areas, outfalls, building locations, and roads for the developed
portions of the facility.
The GF-., Wilmington facility is bordered on the east by NC Highway 133, on the south b%-
Interstate 1140, on the west by the Northeast Cape Fear River and on the north primarily bN
undeveloped foresdand. There are residential subdivisions to the northeast and southwe;t.
Stormwater discharges to two recening water bodies: the Northeast Cape[Fear River and Prince
George Creek. Neither is shown on the site map due to their distance from the developed
portion of the facility. The Northeast Cape hear River, located less than 1 mile west of the
developed portion of the facility, receives the majority of the stormwater runoff, as well as
treated process and sanitary wastewaters permitted under NPDES Permit No. NC:0001228.
Prince George Creek, located approximately 5 miles north of the facility, receives stormwater
runoff from the eastern portion of the facility.
There are seventeen storm water out falls./drainage basins (1,2,3,4,5,G, 8/81,9, 10, 11, 12,
13;`13i, 14, 15/15i, 16 and 18i for the dev eloped areas of the facility. It is noted that there is
no Outfall 17. Representative outfall status was granted by NC D%X'Q in a letter dated,August
13, 1991 such that Outfalls #9,#13,and#14 were considered representative of all stormwater
outfalls at the faciht-. Prior to the last permit renewal, the Outfall 1 drainage basin was
redesigned and, with the last permit renewal, replaced Outfall 14 as representative of the
roadways and on-site parking.
Table 1 identifies the latitude and longitude, total drainage area, total impervious area, and
receiving water bode for each outfall.
Table 2 presents the significant materials at GE Wilmington. These potential stormwater
sources are numbered by outfall and are shown on the Site Drainage and Significant Material
Map (Drawing No. 8002E99) using the source numbers from the first column of Table—1.
rI %X d=nj Ton Section 1
Page 1-1

Table 1 Drainage Basin Areas
Outfall Latitude Longitude Total area Impervious area Receiving water
number (acre) M
1 34"191211 -77055'27" 39.8 33 Prince George Creek
2 34019'15" -77055'28" 7.9 18 Prince George Creek
3 340 19'19" -77055'29" 2.8 41 Prince George Creek
4 34019'26" -77055'36" 6.2 92 Prince George Creek
5 34019'27" -77055'41" 4.6 18 Prince George Creek
6 34019'24" -77055'45" 1.3 68 NE Cape Fear River
7 340 19'24" -77055'45" 4.9 100 NE Cape Fear River
8 34019'25" -77055'45" 20.6 82 NE Cape Fear River
81 340 19'26" -77055'48"
9 34019'28" -77"55'58" 37.7 55 NE Cape Fear River
10 34019'38" -77°564" 1.6 20 NE Cape Fear River
11 34019'33" -77056'1" 4.1 55 NE Cape Fear River
12 3401939" -77056'1 1" 21.4 48 NE Cape Fear River
13 34019'45" -77056-29" 66.7 23 NE Cape Fear River
14 34019' -77055'30" 6.0 36 Prince George Creek
15 3401931" -77055'37" 3.7 51 Prince George Creek
16 34319'36" -77--56'51" 20.3 13 NE Cape Fear River
18 34--19'46" -77-56'8" 16.1 9 NE Cape Fear River
The following Outfalls are defined by the permit for sampling purposes. They are not unique
drainage areas but are subsets or combinations of the drainage areas listed above.
Outfall Latitude Longitude Total area Impervious area Receiving water
Number (acre) (%)
13i 34`1936" -7T'5633 19.1 69 NE Cape Fear River
15i 340 l9'31 -77°55'39" 71.0 37 Prince George Creek
W Ar1mmnginn—MIDI S STormu arc r Pcmvr Renal Secuon I
Page 1-2

INSER Too
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SECTION NO. 2
SUPPLEMENTAL INFORMATION
ANALYTICAL
MONITORING

SECTION NO. 2
SUPPLEMENTAL INFORMATION
ANALYTICAL MONITORING
A summary of nine analytical monitoring events conducted during the term of the costing
permit is included on the subsequent pages. The permit requires analytical monitoring at three
representative outfalls (#9, #13, and #14), on a semiannual basis, for the entire duration of
the permit. Samples were taken during a representative storm event. That is, grab samples
were collected during discharge of a rainfall event greater than 0.1 inches and preceded by at
least 2 hours in which no precipitation greater than 0.1 inches occurred. The following
parameters and storm characteristics were monitored
I. Lead, total recoverable (mg/L)
?_ Non-Polar Oil and Grease (mg/L)
3. Total Suspended Solids (mg/L),
4. pl-I (standard units)
S. Total Rainfall (inches)
"These values were reported to the Division on semi-annual Stormn titer Discharge Outfall
(SDO) Monitoring Reports as required by the permit. For convenience, parameters 1-5 are
summarized on Table 3 for each of the monitored outfalls.
.Additional monitoring for vehicle maintenance activities is not required for GE Wilmington
because the site does not use more than 55 gallons of new motor oil per month when averaged
over the calendar%ear. GE conducts, ongoing monitoring of it new motor oil usage to ensure
that it is below the threshold, and thus, exempt from additional monitoring.
(-E V dmtn}mrn `Yr71 K I'C=t KLMLIV3I Section 7
Page 2.1

Outfall Date Sample Total Lead, TSS, Oil & Grease, pH,
Collected Rainfall, in. m IL m IL m /L S.U.
9 5/8/2015 0.58 0.0152 <25 <5.6 6.9
Duplicate <25 <5.3
13i 5/8/2015 0.58 <0.01 <25 <5.3 7.0
15i 5/8/2015 0.58 <0.01 <25 <5.8 6.9
9 11/19/2015 2Dfi <0.01 <25 <5.74 7.4
Duplicate . <0.01 <25 <5.09 7.4
13i 11/19/2015 2.06 <0.01 42 <6.04 7.4
15i 11/19/2015 2.06 <0.01 46 <5.32 6.8
9 43 <0.006 <7.2 <1.78 7.8
Duplicate 5/12/2016 1. <0.006 <7.2 <1.89 7.8
13i 5/12/2016 1.43 <0.006 24 <1.94 7.0
15i 5/12/2016 1.43 <0.006 10 <2.09 7.0
9 11/4/2016 012 <0.005 <25 <5.0
Duplicate . <0.005 <25 <5.0 7.6
13i 11/4/2016 0.12 <0.005 <25 <5.0 6.9
15i 11/4/2016 0.12 <0.005 <25 <5.0 7.0
9 <0.005 <25 7.4 7.4
Duplicate 3/31/2017 0.57 <0.005 <25 <5.6 7.4
13i 3/31/2017 0.57 <0.005 <25 <5.4 6.9
15i 3/31/2017 0.57 <0.005 <25 <5.8 7.0
9 <0.005 *40.8 <5.6 6.8
Duplicate 8/2$/2017 0.65 <0.005 *40.8 <5.4 6.8
13i 8/28/2017 0.65 <0.005 *<25 <5.6 7.0
15i 8/28/2017 0.65 <0.005 *<25 <6.0 6.9
9 10/10/2017 0.07 ___ *<25 --- ---
Duplicate *<25
13i 10/10/2017 0.07 --- *<25 --- ---
15i 10/10/2017 0.07 --- *<25 --- ---
9 <0.005 <25 <5.4 7.2
Duplicate 4/23/2018 2.67 <0.005 <25 <5.4 7.2
13i 4/23/2018 2.67 <0.005 <25 1 <4.9 6.7
15i 1 4/23/2018 2.67 <0.005 1 <25 1 <5.4 1 7.2
Due to lab error, TSS for sample pulled 8/28/2017 was analyzed out of hold time. Qualified
results received are reported. Replacement sample pulled 10/10/2017 and TSS results for
that date are also reported.
01 ICtlmsnyKun-\PIJE 5 Shi[maanr Pcrmn Rrncv31 Section 2
Page 2-2

SECTION NO. 3
SUPPLEMENTAL INFORMATION
VISUAL
MONITORING

SECTION NO. 3
SUPPLEMENTAL INFORMATION
VISUAL MONITORING
Qualitative visual monitoring occurs at all stormwater outfalls each year on a semiannual
basis, once in the first half of the vear between January 1 and June 30,and again in the
second half between July 1 and December 30. There is a minimum of 60 days between am
two monitoring events. Visual observation is conducted of the following characteristics:
color, odor, clarity, floating solids, suspended solids, foam, oil sheen, erosion and anN, other
indicator of stormwater pollution.
-1-0 facilitate the visual monitoring inspections,placards have been posted at all stormwater
outfalls_This ensures consistent location evaluation during visual monitoring,outfall
inspections,and non-stormwater discharge assessments.
Semi-annual outfall visual monitoring events are tracked in the Compliance Calendar. "11us
program alerts the GE owner of the task that the visual monitoring must occur,and the task
remains "open"until completed and closed in the system. The completed visual monitoring
results are maintained in that year's S%XTPP binder.
-the subsequent pages summarize the semi-annual visual monitoring results by outfall from
December 2014 through December 201". _1s of this submittal, the 1 H 2018 qualitative
sampling has not been performed. The information has been summarized in the table based
on inspection reports and work order documentation. Values greater or equal to 3 are
investigated and documented in the S\XTPI) for that�car.
61 %loImt%ion—VPl)IS5turmuarcrPcmn[Rcncv-al Section 3
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ozz =,

SECTION NO. 4
SUPPLEMENTAL INFORMATION
BEST MANAGEMENT
PRACTICES

SECTION NO. 4
SUPPLEMENTAL INFORMATION
BEST MANAGEMENT
PRACTICES
GC Wdn-ington is committed to preventing pollution at the source, and as such, has
implemented numerous best management practices (13MI's) and at-source stormnvater
pollution prevention controls to reduce the quantity- of pollutants in the stormwater runoff.
The structural controls (e.g.,containment, dike,curb,and/or r000 and management practices
employed at the individual significant materials at GE Wilmington are listed in Table 2 in the
Supplemental Information Section No. 1. The site-vide B.NIPs that are utilized bti GC
Wilmington are described in this section and include:
=> Good Housekeeping,
Inspections;`Preventative Maintenance Program,
=> Outside Material Storage/Tanks/Secondary Containment,
=> Material Handling,
=> Spill Prevention and Response,
=> Seger and Outfall Identification, and
=> Employee Training.
Good Housekeeping
Gl: Wilmington maintains a clean and orderly facibh_ through implementation of a variety of
programs, practices, and procedures,including:
■ Regular pickup and disposal of garbage and debris
■ Routine inspection for leaks
■ Proper material container storage practices
■ Identification and labeling of all chemical substances
■ Disposal of old equipment and used chemicals
These housekeeping practices help to reduce waste and pollutant generation as well as
the potential for spills and leaks.
Ins ections Preventative Maintenance Program
The preventive maintenance program at GC Wilmington ensures that the storm,.vater control
facilities are clean and operating effectively. The program consists of visual inspection,
cleaning, and repair activities. inspections are conducted at the stormNvater controls and the
significant materials identified on the Site 'Map and'fable 2 in the Supplemental Information
Section No. 1. At a minimum, these inspections are conducted semiannually-. Upon
G1 1N Jmtngton—\PD1 S Stormw atet Pcamt Rmot A Section 4
Page 4-1

completion of the inspection, any cleaning and repair activities, if needed, are documented.
Completion of die inspections, cleaning, and repairs are tracked electronically.
Specific inspection areas include:
■ Material handling and storage areas
■ Secondary- containment areas
■ Stormwater outfalls
■ Catch basins and trench drains
■ Roofs and corers
■ Potential spills and areas of possible contamination
Outside Material Storage/Tanks/Secondary Containment
GI %X-ih-nington's practices and activities related to outside material storage areas and
aboveground tanks are in place to present or minimise contact of significant materials with
stormwater. Alan- material storage areas are covered and/or have containment curbing or
grading. Aboveground tanks are in compliance y,.ith federal and state laws for containment,
integrity testing, overflow protection, and protective guards. Storm%rater retained bi the
curbing or dikes is visually inspected for contaminants prior to release.
B'MPs currently in use:
■ Provide secondary containment for liquid storage
■ Provide containment curbing, dikes, and/or grading
■ Cover materials to eliminate exposure to stormwater
■ Store materials on pallets or racks
' Visually inspect stormwater retained b� curbing..,"dikes!"containment prior to
release
• Move storage areas inside if possible
Material Handlin
Material loading and unloading is typically conducted in areas designed to reduce potential
contact with stormwater. Loading areas for bulk chemical transfers are either: (1) contained
to allow-visual inspection of stortmvater prior to release,or f 2) are graded to direct stormwater
to the process drain system for treatment prior to discharge. The stormwater is contained
during transfer operations by secondan- containment, curbing, grading, trays, and/or drain
corers. Further,manual A ah es in the closed position have been installed in select storm drains.
Direct pipeline transfers are in place for several matenals and waste streams. This method of
material transfer greatly reduces the potential of stormwater contamination.
There are detailed written guidelines on loading and unloading procedures in the Spill
Prevention Control and Countermeasures Plan.
Shill Prevention and Response
CAI U4mtn.won %VU1 S%,tmwatcr Pcmvt Rcnm;al Section 4
Page 4-2

GE Wilmington has written procedures on spill prevention and response. These procedures
describe the protocol of responding to a spill and the individuals at the site who should be
contacted. The procedures are included in the facility Spill Prevention Control and
Countermeasures Plan and in the Radiological Contingency and Emergency Plan. Site staff
are trained on spill prevention and response.
Employee Training
The Employee Education and Training Program is designed to familiarize key employees wide
the intent and components of the Stormwater Pollution Prevention Plan. Training is provided
for employees involved in operations with the potential to affect stormwater.
Topics included in the training session include:
■ General stormwater awareness
■ Flow to use the Stormwater Pollution Prevention Plan
■ Chemical spill response procedures
■ Preventative maintenance
■ Inspection procedures
■ Materials management practices
■ Good housekeeping measures
Sewer and Outfall Identification
"1liere are three separate drainage collection systems at the facihty:process Wastewater,sanitary
wastewater, and stormwater. Sewer manhole covers and catch basins have been color coded
to distinguish between these systems.
Also, as described previously, placards ha-e been posted at all stormwater outfalls. "11-tis
ensure~ consistent location evaluation during visual monitoring, outfall inspections, and non-
stormwater discharge assessments.
C,1 1[�lmmyiun—�PL7l_SSturrtouatcrPumuf Kcaeu•�l Section 4
Page 4-3

SECTION NO. 5
SUPPLEMENTAL INFORMATION
SIGNIFICANT FACILITY
CHANGES

SECTION NO. 5
SUPPLEMENTAL INFORMATION
SIGNIFICANT FACILITY
CHANGES
Since the last application was submitted in 2011, several sources have been removed or changed
to minimize quantity- or improve stormwater Protections. 'fable 5 (below) summarizes these
changes bN Outfall.area_
Table 5: Facility Changes
Outfall Change SummaFy
8 9 Removed 2 sources (large storage tanks) (2015)
• .Added 2 sources (Cooling Tower, Propylene tank (2016)
9 • Installed new source—generator with double walled fuel tank 2012
10 . Replaced H2SO4 tank with sitgnificantly smaller, double walled tank. 2015
11 * L'p dated drainage area 2015
12 • Removed large potential source (Solvent Storage Building) (2012)
• Replaced 1 large coohng tower with 2 smaller cooling towers. New towers
have containment and drain to process sewer system. 2016
l3! • .Added this outfall for sam fin•purposes 2015
15i • Added this outfall for sampling Purposes.This location contains waters from
Outfalls 01, 02, 03, 04, 05, 14 and 15. 2015
1 • Permanently removed 7 sources from area (2012)
• Removed vulnerable source covered dn-in bed 2015
[,I IC'tlmmlKnn—�Cnl.ti Stumttatcr!'cmut Kasnca! Section 5
�i[NSulrmrnta![nE>_S�L Pcrmtt 1pl,i:rw1�)
Page 5-1

SECTION NO. G
SUPPLEMENTAL INFORMATION
STORMWATER
POLLUTION
PREVENTION PLAN
CERTIFICATION

SECTION Z SPPP CERTIFICATION AND COORDINATION
2.5 PLAN CERTIFICATION
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designated to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or persons
who manager the system, or those persons directly responsible for gathering the information, the
information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am
aware that there are significant penalties for submitting false information, including the possibility of
fines and imprisonment for knowing viol ions.
Brad Beard Date
FMO Plant Manager, Global Nuclear Fuels, LLC
GE/GNF Mnington 2-3 Stormwater Pollution Prevention Plan