NCG150002_COMPLETE FILE - HISTORICAL_20100723

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STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO. /V Cc, 15U D v�)
DOC TYPE JQ HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE I ❑ a01 D D`i d+-3
YYYYMMDD

North Carolina
Beverly Eaves Perdue
Governor
4I
NC®ENR
Department of Environment and
Division of Water Quality
Coleen H. Sullins
Director
July 20, 2010
Ms. Julie A. Wilsey, Deputy Director
Wilmington International Airport
1740 Airport Blvd, Suite 12
Wilmington, North Carolina 28405
Natural Resources
Subject: General Permit No. NCG150000
Wilmington International Airport
COC NCG150002
New Hanover County
Dear Ms. Wilsey:
Dee Freeman
Secretary
In accordance with your application for a discharge permit received on December 7, 2009 and
subsequent additional information provided on March 2, 2010 and April 21, 2010 and DWQ site
visit performed June 23, 2010, we are forwarding herewith the subject certificate of coverage to
discharge under the subject state -- NPDES general permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between North Carolina and the US Environmental Protection Agency dated October 15, 2007 (or
as subsequently amended).
in addition to the qualitative monitoring requirements found. in Part 11; Section B of the attached
permit, this facility shall develop and implement an analytical monitoring program as.an
additional component of its Stormwater Pollution Prevention Plan (SPPP_) described in Part I1,
Section A.
At a minimum, analytical monitoring for stormwater discharge outfalls (SDOs) 6, 7, 8a,10,11,13,
and at the vortex device shall be performed at least semi-annually, in conjunction with qualitative
monitoring events for the minimum set of parameters below, and compared to the appropriate
benchmark concentration, if any, to aid in the evaluation of the effectiveness of the SPPP. Copies
of analytical monitoring results shall be sent to the attention of Linda Willis of the Wilmington
Regional Office within 30 days of receipt of the results.
Wetlands and Storr. water Branch
1617 Win Service Centoa, Raleigh, North Carolina 27699-1617
t c ,: io=:: 512 N. Salisbuy St, Raleigh, North Carolire 27604
Phone: [phone] FAX; 919-807-64941 Customer Service; 1-877-623-6748
Intemet: wmv-ncwatergVality.org
NorthCaroli na

Ms. Julie A. Wilsey
Wilmington International Airport — NCG 150002
July 20, 2010
. Parameter
Freguency
Benchmark Conccntration 1
Total Suspended Solids, TSS
Semi -Annual .
100 m /L
Chemical Oxygen Demand,
Semi -Annual
I20 mg/L
COD
Am'inonia-Nitro en, NH3-N
Semi -Annual
7.2 m /L
`Non-polaf Oil.& -Grease
[EPA- Method-1664 SGT-HE ]
Sew -Annual
15 mg/L
H
Semi-AnnuaI
6 - 9 standard units
Constituents that may be
present in stormwater runoff
Semi -Annual
N/A
frorn current and past industrial
activities.'
Ethylene Glycol and/or
Twice per De-icing/De-
N/A
Propylene glycol
frosting Season
Acute Toxicity 2
Twice per De-icing/De-
N/A
frosting Season
Biochemical Oxygen Demand,
Twice per De-icing/De-
30 mg/L
BOD5
frosting Season
The permittee shall identify potential pollutants that could be present in stormwater runoff from
current industrial activities. Identifying past industrial activities and potential pollutants from those
activities would be difficult to identify. Sampling and testing outfalls 6, 7, $a, 10,-11, 13, and at the
vortex device for potential pollutants that could be present in stormwater runoff from current
industrial activities should provide adequate results on both current and past industrial activities to
evaluate the effectiveness of the SPPP.
Acute toxicity. The permittee shall conduct acute toxicity tests twice per de-icing season using
protocols defined as definitive in - E.P.A. Document EPA/600/4-90/027F entitled "Methods for
Measuring the Acute Toxicity of Effluents to Freshwater and Marine Organisms." The monitoring
shall be performed as a Ceriodaphnia dubin 24-hour static test. The parameter code far this test is TAE3B.
All toxicity testing results required as part of this permit condition will be entered on the Discharge
Monitoring Report form for the month in which it was performed, using the appropriate parameter
code. Test results shall be sent to DWQ in accordance with this letter.
Analytical monitoring shall begin within 12 months of the effective date of the certificate
of coverage and continue at the discretion of the Wilmington Regional Office or for a minimum.of
two years. Please note that this additional monitoring requirement has been placed on the
facility in lieu bf an individual permit but does not restrict DWQ from requiring coverage under
an individual permit in any of the cases described'in Part III, Section B, 3_ When an Individual
Permit May be Required.
This certificate of coverage is not transferable except after notice to the Division of Water
Quality. The Division of Water Quality may require modification or revocation and reissuance of
the certificate of coverage.

Ms. Julie A. Wilsey.
Witin;tonInteniationalAirport —NCG150002
July 20, 2010
This permit does not affect the legal requirements to obtain other permits.which may be
required by the Division of Water Quality or permits required by'the Division of Land Resources,
Coastal Area Management Act or any other federal or local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Cory Larsen at (919) 807-
6365 or c6r)[e-mail] ov or Linda Willis at [phone] or linda.willis®ncdenr.gov.
Sincerely,
for CoIeen H. Sullins
cc:. Wilmington Regional Office, Linda Willis
Central Files
Stormwater Permitting Unit Files

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG150000
CERTIFICATE OF COVERAGE No. NCG150002
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In complianc(;-with the provision of North Carolina General Statute 143-215.1, other lawful
.standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
WILMINGTON INTERNATIONAL AIRPORT
is hereby authorized to discharge stormwater from a facility located at
Wilmington International Airport
1740 Airport Blvd.
Wilmington, NC
New Hanover County
to receiving waters designated as Smith Creek, a class C; Sw surface water, in the Cape Fear
River Basin, in accordance with the effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III, IV, V, and VI of General Permit No. NCG150000 as
attached.
This certificate of coverage shall become effective July 20, 2010.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day, the 20t" of July, 2010.
for Coleen H. Sullins., Director
Division of Water Quality
By the Authority of the Environmental Management Commission

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N+CG150002
jr
:1Y;,.
ti
APO Scale 1,24,000
WILMINGTON' INTERNATIONAL .-
AIRPORT
Latitude: 340 16' 15" N
Longitude: 770 54' 09'F W
Gounty: New Hanover
Receiving Streams: Srrith Creek
Stream Class: C; Sw
Sub -basin: 03-06-23 (Cape Fear RiverBasin)
Facility Location

D4VQ Guidance for Monthly Monitoring Provisions in NCG020000 Mining Permit
July 1, 2010
cc: Stormwater Permitting Guidance Materials File
DWQ Supervisor, Fayetteville Regional Office
DWQ Supervisor, Raleigh Regional Office
DWQ Supervisor, Winston-Salem Regional Office
Jay Stem, NC Aggregates Association
DWQ Supervisor, Asheville Regional Office
DWQ Supervisor, Mooresville Regional Office
DWQ Supervisor, Washington Regional Office
DWQ Supervisor, Wilmington Regional Office
2

,0
A.
NCDENR
North Carolina Department of Environment and
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
July 9, 2010
Ms. Julie A. Wilsey, Deputy Director
Wilmington International Airport
1740 Airport Blvd, Suite 12
Wilmington, North Carolina 28405
Natural Resources
Subject: General Permit No. NCG150000
Wilmington International Airport .
COC NCG150002
New Hanover County
Dear Ms. Wilsey:
Dee Freeman
Secretary
In accordance with your application for a discharge permit received on December 7, 2009 and
subsequent additional information provided on March 2, 2010 and April 21, 2010 and DWQ site
visit performed June 23, 2010, we are forwarding herewith the subject certificate of coverage to
discharge under the subject state -- NPDES general permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between North Carolina and the US Environmental Protection Agency dated October 15, 2007 (or
as subsequently amended).
In addition to the qualitative monitoring requirements found in Part I1, Section B of the attached
permit, this facility shall develop and implement an analytical monitoring program as an
additional component of its Stormwater Pollution Prevention Plan (SPPP) described in Part It,
Section A.
At a minimum, analytical monitoring for stormwater discharge outfalls (SDOs) 6, 7, 8a,10,11,13,
and at the vortex device, shall be performed at least semi-annually, in conjunction with
qualitative monitoring events for the minimum set of parameters below, and compared to the
appropriate benchmark concentration, if any, to aid in the evaluation of the effectiveness of the
SPPP. Copies of analytical monitoring results shall be sent to the attention of Linda Willis of the
Wilmington Regional Office within 30 days of receipt of the results.
Wetlands and Stormwater Branch
1617 Mail Service Center, Ralegh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: 919$07-63001 FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
Nne
orthCarolina
Awmally

Ms. Julie A. Wilsey
Wilmington International Airport - NCG 150002
July 9, 2010
Parameter
Frequency
Benchmark Concentration
Total Suspended Solids, TSS
Semi -Annual
100 m / L
Chemical Oxygen Demand,
Semi -Annual
120 mg/ L
COD
Ammonia -Nitrogen, NH3-N
Semi -Annual
7.2 m /L
Non -polar Oil & Grease
Semi -Annual
15 mg/ L
[EPA Method 1664 SGT-HEM ]
H
Semi -Annual
6 - 9 standard units
Constituents that may be
present in stormwater runoff
Semi -Annual
N/A
from current and past industrial
activities.
Ethylene Glycol and/or
Twice per De-icing/De-
N/ A
Propylene glycol
frostingSeason
Acute Toxicity 2
Twice per De-icing/De-
N/A
frosting Season
Biochemical Oxygen Demand,
Twice per De-icing/ De-
30 mg/ L
BOD5
frostingSeason
The permittee shall identify potential pollutants that could be present in stormwater runoff from
current industrial activities. Identify past industrial activities and potential pollutants from those
activities would be difficult to identify. Sampling and testing outfalls 6, 7, Sa, 10, 11, 13, and at the
vortex device for potential pollutants that could be present in stormwater runoff from current
industrial activities should provide adequate results on both current and past industrial activities to
evaluate the effectiveness of the SPPP.
2 Acute toxicity. The permittee shall conduct acute toxicity tests twice per de-icii-ig season using
protocols defined as definitive in E.P.A. Document EPA/600/4-90/027F entitled "Methods for
Measuring the Acute "Toxicity of Effluents to Freshwater and Marine Organisms." The monitoring
shall be performed as a Ceriodaphnia dubia 24-hour static test. The parameter code for this test is TAE3B.
All toxicity testing results required as part of this permit condition will be entered on the Discharge
Monitoring Report form for the month in which it was performed, using the appropriate parameter
code. Test results shall be sent to DWQ in accordance with this letter.
Analytical monitoring shall begin within 12 months of the effective date of the certificate
of coverage and continue at the discretion of the Wilmington Regional Office or for a minimum of
two years. Please note that this additional monitoring requirement has been placed on the
facility in lieu of an individual permit but does not restrict DWQ from requiring coverage under
an individual permit in any of the cases described in Part III, Section B, 3. When an Individual
Permit May be Required.
This certificate of coverage is not transferable except after notice to the Division of Water
Quality. The Division of Water Quality may require modification or revocation and reissuance of
the certificate of coverage.

Ms. Julie A. Wilsey
' Wilmington International Airport— NCG150002
July 9, 2010
This permit does not affect the legal requirements to obtain other permits which may be
required by the Division of Water Quality or permits required by the Division of Land Resources,
Coastal Area Management Act or any other federal or local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Cory Larsen at (919) 807-
6365 or cory.larsen@ncdenr.g_ov or Linda Willis at [phone] or [e-mail].
Sincerely,
for Coleen H. Sullins
cc: Wilmington Regional Office, Linda Willis
Central Files
Stormwater Permitting Unit Files

lCoe,
From:
Scatt, Georgelte
Sent:
Wednesday, July 07. 2010 3:22 AM
To:
Larsen, Cory; Willis, Linda
Cc:
Randall, Mike
Subject:
RE: Wilmington Int'I MCGI50002
I think you covered everything we discussed at the meeting (good job!). Of course Linda will also have to review. She is
out till July 121h
f:c'm'f.,'elle 4a'o[I
Sumim- er Yrograrn Snpen-isor
StaC 5(ormuacr Proln:an)
\C Division of \Vatcr Quality
127 Cardinal Drivc ExI.
Wiliniuhaon. \C 28,W5
Phone [phone]
Pa.c (910) 150-200-1
E': n17dl.coa reslxaredcrn c I❑ :and frail[ INS addles% may IW sn10jC0 lu duc Norlll Carolina P11I111C IZecnlzlx Iota and rrra,• Irc 41ia•10scd hr third panic%.
From: Larsen, Cory
Sent: Thursday, July 01, 2010 1:05 PM
To: Willis, Linda
Cc: Scott, Georgette; Randall, Mike
Subject: RE: Wilmington Int'I NCGIS0002
Linda/Georgette,
Here's the draft issuance letter we intend on sending to the airport to accompany their general permit. Please let me
know if you have any comments or concerns. Thanks
Cory
From: Willis, Linda
Sent: Thursday, June 10, 2010 11:42 AM
To: Larsen, Cory
Subject: RE: Wilmington Int'I NCG150002
Lisa was available then, so I will confirm the appointment.
LW
From: Larsen, Cory
Sent: Thursday, June 10, 2010 8:48 AM
To: Willis, Linda
Subject: FW: Wilmington Int'I NCG150002
I think 23rd will work for us too Linda. 10:30 onsite; I think Jennifer Fuller from DOT will come with us as well_
From: Randall, Mike
Sent: Thursday, June 10, 2010 7:02 AM
To: Larsen, Cory
Cc: Fuller, Jennifer M
Subject: RE: Wilmington Int'I NCG150002
23rd works for me.
1

4
Mike
From: Larsen, Cory
Sent: Wednesday, June 09, 2010 4:37 PM
To: Randall, Mike
Subject: FW: Wilmington Int'l NCG150002
23rd work for you Mike? I am good for that day.
From: Willis, Linda
Sent: Wednesday, June 09, 2010 4:00 PM
To: Larsen, Cory
Subject: RE: Wilmington Int'I NCG150002
She won't be able to meet until week after next.. I'm hoping I can schedule something for the 23`d (Wed.).
Could you all meet then? Lisa is out of the office until tomorrow, so I'll confirm with her tomorrow if that works for you
two.
I'd say we can visit the site at around 10:30 am.. that gives you all time to get here.
Linda
From: Larsen, Cory
Sent: Wednesday, June 09, 2010 12:34 PM
To: Willis, Linda
Subject: RE: Wilmington Int'I NCG150002
Linda,
Was talking to Mike Randall today and we thought it would probably be a good idea for us to get a look at the airport
like we did in Fayetteville too, We'd like to accompany you during the visit and then we (DWQ) can discuss our plan of
action afterwards. Please let me know what date you plan on visiting or dates you are available to go.
Cory
2

Larson, Co
From:
Jutie Wilsey [e-mail])
Sent:
Wednesday, April 21. 2010 11:36 AM
To:
Larsen, Cory
Cc:
Whitney Proase
Subject:
ILM Operations Stats -
Attachments:
SCAN 2010C421095935,PDF
Cory,
Thank you for returning my call. i want to make sure ILM is following the process on the storm water permit. With all
that we are trying to accomplish, I needed to get a better understanding of the NCDENR's expectations. I feel much
better now and will begin working on additional pieces of the template and document. It will not be the top priority
until we have the permit letter in hand.
As for our aircraft operational stats, I have attached our official traffic count for CY2009. it is important to note that an
operation is defined as a landing or takeoff. If you want to count flights, then the number needs to be divided by two.
Another important note is that the counts are classified by Air Traffic guidelines, and the Air Taxi numbers contain some
commercial flights, large GA aircraft for hire, and cargo operations. Adding the Airlines and Air Taxi would give you
10,746, which is too high. If I were to estimate the number of commercial flights for the year, then I would use 22
flights per day (8030). My estimate on the phone was assuming the maximum number of fights per day at 26. Flights
actually range from 21 to 26 per day. After talking with the Operations Director, 1 think 22 is the most accurate number
to use for an average over the entire year.
I hope this has been helpful and not too confusing. Please feel free to call if you have any questions.
Julie Wilsey
Deputy Director
ILM Airport
[phone] ext 1002
fV
+' w1
w(f-o- AVM A 04-
1

'' PROCESS[MINE DEWA'i ER1NG WASTEWATER DISCHARGE MONITORING REPORT (DMR)
Please Mail Orl inal and One Co j to Mailing Address Below
GENERAL PERMIT NO. NCG020000
Part A: Facili1j;,i formation
Samples Collected in Quarter: 10 20 3 4( (all samples shall be reported within 30 days following monitoring period)
(o,cfo
Certificate of Coverage No. NCG020580 County of Facility
Facility Name RICHMOND QUARRY Name of Laboratory
Facility Contact DEXTERTATE Lab Certification #
Facility Contact Phone No. [phone]
Part B: Process ♦ lasletivaler anAline lVastetvater Monitoring Regi iremenls
RICHMOND
PACE ANALYTICAL
12
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(Nat in.0 Aeration)
I Me&sured continuously using a flow measuring device or estimated using manufacturer's pump curves and pump logs.
Part C_', Certification \
"l certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and,evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible forgathering the information, the information submitted is, to the best
of my knowledge and belief, true, accurate, and complete. I am aware that there arc significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violation." ��/
(Signature of
Part D; Rfailirtg Address
Attn: Central Files, DENIt, N.C. Division of Witter Quality, 1617 Mail Service Center, Raleigh, N.C. 27699-1617
:9Ao
(Date)
SW[J-244-012005

WILMINGTON INTERNATIONAL AIRPORT
Wilminctlon, North Carotina
Air Trafti00perations Report
DECEMBER 2009
December 2009 % Over/(Under) MTD % Over/(Under) YTD
ACTIVITY I MTD YTD 2008 2007 20061 20681 20071 2006
International:
Aircraft Cleared
3131
1,870
20.4
1 (18.7)]
(11.3)
(27.1)1 (37.9 31.5)
Persons Cleared
1,1631
10,4451
16.3
1 (26.7)1
(20.9)
(21 .7 (37.4) (32.1)
Airline Passengers:
Enplanements
31,5451
405,874
1 2.01
5.2
1 23.91
(0,8j
0.2
25.8
Deplanements
29,663_1
401,252
1.51_
1.51
22.4
1.0
1.31
26.1
Cargo (Freight/Mail/Express) (Lbs):
Enplaned
147,710
1199,044-1
1 1,521,853
1 18.9
(5.8)1
8.4
9.9 17.8
3,8
Deplaned
2,094,149
5,5
2.8
(2.9)1
(15.1) 25.5
13.2
Aircraft Operations:
Airlines (a60 Seats)
487
5,782
3.6)
3.6
20.5
8.9
2.7
15.1
Air Taxi (<60 Seats, Caro & Mail)
1,444
15,711
5.7
14.0)
10.6)
(11.3)
(19.3)
(15.0
Genera[ Aviation
2,286
30,099
7.9
42.3)
47.3
(22.1)
43-9
(45.7).
Military
314
4,851
3.7
15.8)
(30.7)
2.0
6.2
(15.4)
Total Aircraft Operations
4,531
1 56,443
(3.1)
(30.1)
(33.4)
(16.4)
(32.3)
(33.4)
DECEMBER 2009
2

PROCESS/MINE DEWATERING WASTEWATEit DISCHARGE MONITORING REPORT (DMR)
II Please Mail Original and One Com to Mailine Address Below 11
GENERAL PERMIT NO. NCG020000
Part A: Facility Information
Samples Collectetl\imQuarter: 10 29 3 4 (all samples shall be reported within 30 days following monitoring period)
\ (Circle
Certificate of Coverage No. NCG020045 County of Facility
Facility Name ARROWOOD QUARRY Name of Laboratory
Facility Contact JOHN SMITH Lab Certification i#
Facility Contact Pllone No. [phone]
Part B: Process lflastm parer grid Afine 11'aat\>trter Afnraitorhtg Requirements
MECKLENBURG
PACE ANALYTICAL
12
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law:
pT �'
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;_iurliytitty,
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:;
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t Measured continuously using a flow measuring device or estimated using manufacturer's purip`curves and pump logs.
Part C: Certification
"1 certify, under penalty of law, that this document and all attachments were -prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathermg,the information, the information submitted is, to the best
of my knowledge and belief, true, accurate, and complete. I am aware that there are significa,, enalties fo bmitting false information,
including the possibility of fines and imprisonment for knowing violation."
(Signature of Permitee) (Date)
Port D; Mailing Address
Attn: Central Files, DE"sNR, N.C. Division of Water Quality, 1617 Mail Service Center, Raleigh, N.C. 27699-1617
S W U-244-012005

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o
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-
DtLETIONs -IN
Sere & Address of Loss 2ayee(s) ;AddiCicns Only].
Submitted by: _ -
lJC�arcmzr.t or University
(Division)
(Signature)

ILM
Airport Authority
Dr. Charles R. Kays
Chairman
Paul G. Burton
Vice -Chairman
Robert S. Rippy
Secretary
John D. Lennon
Harry W. Stovall, III
Airport Director
Jon W. Rosborough
March 2, 2010
NC Department of Environment and Natural Resources
Wetlands and Stormwater Branch
ATTN: Mr. Cory Larsen
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE: Wilmington International COC No. NCG 150002
Dear Mr. Larsen:
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a
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This letter is in response to your December 11, 2009, correspondence and request for
additional information.
1. Inventory of deicing/defrosting materials stored on site and a history of the
deicing material application for the last five (5) years.
Response: The Wilmington International Airport (ILM) stores three pallets of
Cryoice pellets on site to deice the runway. It is our emergency supply, and we use it
in the rare event of a snow accumulation and ground temperature below freezing.
Until February 2010, we only used one pallet. Last month we used two pallets for
the snow event. The material is the most environmentally friendly material available
on the market. A copy of the Material Safety Data Sheet (MSDS) is included with
this correspondence.
Three tenants on ILM possess deicing equipment and fluids. US Airways
stores 1540 gals Type I and 825 gals Type IV; ASA/Delta stores 440 gals Type I;
FEDES stores 165gals of Type I fluid. We were not able to get five years of use data
from the companies. Below you will find the data they provided:
Tenant
Year
I
Type IV
US Airways
2008-09
-Type
1500 gals
405 gals
US Airways
2009-10 (YTD)
900 gals
0
ASA/Delta
2008--09
104g gals
NIA
FEDEX
2009-10 (YTD)
< 55 gals
NIA
2. Inventory of bulk liquid, fuel and oil on the airport complex:
Response: An inventory is enclosed in this correspondence, and it is listed by airport
tenant.
3. ILM SPCC Program:
Response: ILM has had a SPCC program in place since 2002. As a part of the
NPDES permit process, ILM has an engineer revising'the SPCC document. The
document is still in revision at this time. We can send the original 2002 SPCC if you
wish, or we can transmit a copy of the new SPCC when it is completed.
1740 Airport Boulevard • Wilmington, NC 28405 • Phone: [phone] • Fax: [phone] • www.flyilm.com

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4. Vehicle and equipment maintenance activities and frequency.
Response: The ILM airport complex consists of many tenants and businesses that
support air transportation and tourism. Examples include the following:
ILM
® a. ILM maintains its vehicle fleet (10 vehicles) and mowing equipment (5
tractors) at the Pennington Maintenance Center. The facility has a garage
permit in accordance with New Hanover County. ILM washes vehicles at
Rescue Base, which is equipped with an oil and water separator, as
needed by airport employees.
b. There are three rental cars that operate Service Facilities on the airport.
They perform minor maintenance and vehicle detailing on site with their
own employees and equipment. The facilities are open seven days per
week and the number of cars cleaned varies depending on the time of year
and Franchise Company. LLM's strategic plan calls for replacing all three
facilities with a consolidated facility. Until the Cape Fear Utility
Authority extends water and sewer to the proposed site, ILM has
postponed design and construction of the new facility.
There are two Fixed Base Operators (FBO) on the airport that provide
aircraft maintenance on private airplanes with their own employees. The
FBOs do not normally wash aircraft. In the rare occurrence when they
do, they dry wash outside or wet wash inside a hangar with an oil and
water separator.
Based on the NCAA sponsored airport storm water training, ILM intends to use the
NPDES program from the approved airport permit template. We look forward to
working with you on the General Permit and other storm water issues related to the
Wilmington International Airport. Please feel free to contact me with questions or to
get additional information.
jcut
cerely,
A. ilsey AAE
y Airport Dire o
cc: Jennifer Fuller, NCDOA
1740 Airport Boulevard • Wilmington, NC 28405 • Phone: [phone] • Fax: [phone] • wvvw.f ilm.com

APPROVED FOR USE
AT AIRPORTS AND
COMMERCIAL FACILITIES
SPEC: CRYOTECHNAAC 0
BENEFITS SOLID RUNWAY DEICER
• Safe for runways: meets FAA -approved specifications
• Exothermic: gives off heat as it dissolves, melting ice faster than common deicers
• Faster and better: works fast like calcium chloride, without chloride -induced corrosion
• Staying power: works longer, requiring fewer applications than other common deicers
• Easy to apply: applied with the same equipment as other solid deicers
Safe for the environment: non -persistent, biodegradable
• Manufactured from pure materials: NAAC does not track like common deicers
• Anhydrous pellet contains 97% active ingredients for high performance
• Spherical pellet is less dusty than granular deicers
PERFORMANCE
• Non -chloride based
• Excellent melting properties
• Works faster than urea, sodium chloride, and trihydrate sodium acetate
• Is active at low temperatures - Cr E H8°C)
• Requires less material than common deicers to achieve similar effectiveness
APPLICATION
• Deicing - apply in uniform pattern:
Near 320F (0°C) on thin ice=5-7 Ibs/1000ft2 (25-35 g/m2)
Less than 10°F (-120C) on 1" (2.5 cm) ice=10-25 Ibs/1000ft1 (50-75 g/m2)
• Re -apply when new accumulation shows first tendency to bond
• Plow once bond is broken
• Prewetting - airports may apply Cryotech E36° to NAAC at spreader outlet at a rate of 10% by weight
ENVIRONMENT
Lower BOD than urea
• Biodegrades at low temperatures
• Low toxicity to fish and mammals
BSI _� 651
HANDLING
• Store in original container w
k
• Avoid excessive moisture which may cause caking
• Excessive handling may cause dustiness 1S0 9001 !SO 14001
FM 39092 EMS 89384
SEE REVERSE SIDE FOR PRODUCT SPECIFICATIONS
COMPLETE TECHNICAL BROCHURE AVAILABLE UPON REQUEST AN ISO 9001:2008 & 14001:2004 CERTIFIED COMPANY

- PRODUCT
SPECIFICATIONS - CRYOTECti NAACO
COMPOSITION Sodium Acetate (NaAc)
97% minimum by weight, anhydrous sodium acetate
with less than 1 % corrosion inhibitors
PARTICLE SIZE _Sieve % Passing
4 90
14 10
SHAPE Spherical pellet
BULK DENSITY 50 lbstft3 to 54 lbslft3
(0.8 g/cm3 to 0.86 g/cm3)
TYPICAL pH 8 to 10.5 in a 10% solution
PACKAGING 25 kg (55 Ibs) poly bags - (40 bags minimum)
1000 kg (2205 Ibs) Super Sacks - (1 SS minimum)
Bulk - (20 metric ton minimum)
9'
Ice T
a 6
Melting 3
Test=
z�
i�
Revised - 06/09
9'07en j] C'ryoceeh aNAAG ®M4c -11 ifiyd�- ate
i
r�
w
MA
17 ttee. IF, 25 deg.'E* ...
-15 do-.-C -9 -de=: C. -4
TO ORDER OR FOR PRODUCT INFORMATION CONTACT:
Ph'. +1 319.372.6012 or +1 800.346.7237 Fax: [phone] E-mail: [e-mail]
Cryotech Deicing Technology. 6103 Orthoway . Fort Madison, IA - 52627 . WVVW.CRYOTECH.COM

ILM Bulk Oil and Hazardous Substance Storage
Container ID/
Storage Device
Quantity
Location
Product
Capacity
(gallons)
Container Secondary
Material Containment
Equipment Failure Rate of
Flow/ Comments'
SPCC Regulated Containers
AST
1
AAI Offices Site
Diesel Fuel
900
Steel
Integral, DW
1 gpm to instantaneous
AST
1
Aero Service South Fuel
Farm
Avgas
10,000
Steel
Concrete Dike
1 gpm to instantaneous
AST
2
Aero Service South Fuel
Farm
Jet A
20,000 each
Steel
Concrete Dike
1gpm to instantaneous
AST
2
Air Wilmington Fuel Farm
#2
Jet A
20,000 each
Steel
Concrete Dike
1gpm to instantaneous
AST
1
Air Wilmington Fuel Farm
#2
Avgas
15,000
Steel
Concrete Dike
lgpm to instantaneous
AST
1
Air Wilmington Self Serve
Fuel Site
Jet A
10,000
Steel
Integral, DW
1gpm to instantaneous
Refueler Truck
4
Air Wilmington Apron
Jet A
5,500 each
Steel
None
1 gpm to instantaneous
Refueler Truck
1
Air Wilmington Apron
Avgas
1,000
Steel
None
I gpm to instantaneous
Refueler Truck
2
Aero Service Apron
Avgas
1,200 each
Steel
None
1gpm to instantaneous
Refueler Truck
2
Aero Service Apron
Jet A
2,200 each
Steel
None
1 gpm to instantaneous
UST
2
Air Wilmington Fuel Farm
#1
Jet A
12,000 each
Steel
None, single -walled
Tank Guard System installed
Drums
M, varies
Air Wilmington Fuel Farm
#1
Oil (varies)
M 4� 55
Steel
Yes, spill pallets
5 drums on -site
UST
1
Air Wilmington Fuel Farm
#1
Jet A
15,000
Steel
None, single -walled
Tank Guard System Installed
AST
1
Thrifty Rental Car Center
Gasoline
2,000
Steel
Integral, DW
1 gpm to instantaneous
AST
1
Thrift Rental Car Center
Oil
280
Steel
Integral, DW
1 gpm to instantaneous

Container ID/
Storage Device
Quantity
Location
Product
Capacity
(gallons)
Container
Material
Secondary
Containment
Equipment Failure Rate of
Flow/ Comments'
AST
1
Thrifty Rental Car Center
Waste Oil
280
Steel
Integral, DW
1 gpm to instantaneous
AST
1
FAA Airport Radar Site
Diesel
1,000
Steel
Integral, DW
Emergency Generator
AST
1
FAA ATC Tower Building
Diesel
2,000
Steel
Integral, DW
Emergency Generator
UST
1
Hertz Rental Car Center
Gasoline
10,000
Steel
None
Tank Guard System Installed
AST
1
Hertz Rental Car Center
Oil
280
Steel
Integral, DW
1 gpm to instantaneous
AST
2
ILM Maintenance Base
Diesel (1)
Gasoline (1)
2,000 each
Steel
Integral, DW
1 gpm to instantaneous
Drums
M
ILM Maintenance Base
Various
M @ 55
Steel
Yes, spill pallets
Stored indoors
UST
1
ILM Passenger Terminal
Diesel
3,380
Steel
None
Tank Guard Installed
/Emergency Generator
AST
1
ILM Passenger Terminal
Diesel
100
Steel
Concrete Dike
Emergency Generator
AST
1
ILM Passenger Terminal
Gate Area
Diesel
461
Steel
Integral, DW
Emergency Generator
AST
1
ILM International
Terminal
Diesel
XXX
Steel
Integral, DW
Emergency Generator
AST
1
ILM Airfield Light Vault
Diesel
1,000
Steel
Integral, DW
Emergency Generator
Transformer
1
ILM Airfield (former ATC
Building)
Oil
1 < 55 gallons
Steel
None
Pad Mounted
Transformer
1
ILM Rescue Base
Oil
1> 55 gallons
Steel
None
Pad Mounted
Transformer
1
ILM Passenger Terminal
(Loading Dock)
Oil
1> 55 gallons
Steel
None
Pad Mounted
Transformer
1
Air Wilmington Terminal
Oil
1> 55 gallons
Steel
None
Pad Mounted
Transformer
1
FAA Navaids
Oil
1> gallons
Steel
None
Pad Mounted
Transformer
1
ILM Airfield Light Vault
Oil
1> 55 gallons
Steel
None
Pad Mounted

Container ID/
Quantity
Location
Product
Capacity
Container
Secondary
Equipment Failure Rate of
Storage Device
(gallons)
Material
Containment
Flow/ Comments'
Non-SPCC Regulated Containers/ Other Hazardous Substance Containers
Drums
M, varies
US Airways- Passenger
Propylene Glycol
M @ 275
Plastic
None
Type I and IV ADF; Stored
Terminal
inside
Drums
M, varies
Delta -Passenger
Propylene Glycol
M ® 55
Plastic
None
Type I and IV ADF; Stored
Terminal
inside
Drums
M, varies
FEDEX
Propylene Glycol
M @ 55
Plastic
None
Type I ADF; stored inside at Air
Wilmington
DW = Double -walled M = Multiple gpm = gallons per minute
' For prediction of the direction, rate of flow, and total quantity of oil/hazardous substance discharge from a container leak or failure: See Airport Site Map
and Section 1.3.5 Airport Drainage for direction of potential discharge.

ILM
Airport Authority
Dr. Charles R. Kays
Chairman
Paul G. Burton
Vice -Chairman
RobertSecretary
John D. Lennon
Harry W. Stovall, III
Airport Director
Jon W.Rosborough
December 23, 2009
V
NC Department of Environment and Natural Resources
Wetlands and Stormwater Branch 4�
ATTN: Mr. Cory Larsen ? n rj
1617 Mail Service Center q CA
Raleigh, North Carolina 27699-1617 rip IF
RE: Wilmington International CQC No. NCG 150002
Dear Mr. Larsen:
This letter is in response to your December 11, 2009
correspondence. Based on the NCAA sponsored airport storrri
water training, 1LM planned to have twelve months from the notice
of intent to complete the necessary documentation and monitoring
program. At this time, we will need to request a 60 day extension
to compile the data and prepare a response as specified in your
letter.
We look forward to working with you on the General Permit and
other storm water issues related to the Wilmington International
Airport.
Srel ,
Jul' A. Wilsey AAE
D uty Airport Director
1740 Airport Boulevard • Wilmington, NC 28405 • Phone: [phone] • Fax: 910-34� 4365 • www.flyilm.com

1 27
NC®ENR
North Carolina Department of Environment and Natural Resources
I Division of Water Quality I t
Beverly Eaves Perdue Coleen H. Sullins f
Governor Director �a4'»$kV
I
I I I
Dee Freeman
Secretary
1. December 11, 2009 b�C 5 'IM
Mr. Jon W. Rosborough f w
New Hanover County Airport Authority BY:'
1740 Airport Blvd :Suite 12
Wilmington, North Carolina 28405
Subject: Request for Additional Information
! General Permit COG No', NCG150002 t r
Wilmington International Airport
New Hanover County `
t
Dear Mr, Rosborough:.
The Division of Water Quality's Storm wate r Permitting Unit is currently reviewing your application for coverage under NPDES
General Permit NCG150000. A preliminary review has determined that additional information is required to evaluate the
applicability of a general permit for this facility. The following information is neededto continue the stormwater review:
1. Please provide an inventory of any deicing/defrosting materials (glycol, ! r l, salts, etc.) used or stored onsite and a
deicing material applicationlusage history for the last five (5) years. '
2. Please provide capacities of all bulk liquid, fuel, and oil containers onsite- `
3. Please provide a copy of the airport's Spill Prevention, Control and Countermeasure (SPCC) Plan, if developed.
4. Please summarize vehicle maintenance and equipment cleaning activities occurring onsite including what type of
activities are performed and the location(s) and frequency of such activities.
Please note that this request for additional information is in response to a preliminary review. The requested information .
1 should be received by this Office prior to January 16, 2009, or the application may be returned as incomplete. The return of a
project will necessitate resubmittal of all required items, including the application fee.
i
If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at
the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the
required information.
Please reference COC No. NCG150002 on all correspondence. If you have any questions concerning this matter feet free to
contact me at [phone] orfc [e-mail]. j
i
Sincerely,
# f
t I
s
, cc: Wilmington Regional Office, Linda Willis
t
Stormwater Permitting Unit Files
I I ,
Wetlands and Stormwater Branch
1617 IAail SeMce Center, Raleigh, North Carolina 27699-1617
l +
Cory La en
Environmental Engineer
i
1
one
t NoahCarolina

*a
Division of Water Quality / Surface Water )protection
�. !
NCIENR National Pollutant Discharge Elimination System
NdiTN C� DeawrM o.
[rtvRervr.€� N+o itiRu,Jti
NCG150000
NOTICE OF INTENT
FOR AGENCY USE ONLY
Date Received
Year Month Dav
o
Certificate of Coverage
d
check if
Am ottrtt
41,Mo
I I Crb—
Permit Assigned to
seAl
National Pollutant Discharge Elimination System application for coverage under General Permit
N C G 150000:
,,...--\ST0RMWATER DISCHARGES associated with activities classified as:
SIC" (Standard Industrial Classification) Code 45 Air Transportation Facilities including air transportation,
V.' " n scheduled, and air courier (SIC 4512 and 4513); air transportation, nonscheduled (SIC 4522); airports,
o flying fields, except those maintained by aviation clubs, and airport terminal services including: air traffic
control-, government; aircraft storage at airports; aircraft upholstery repair; airfreight handling at
Q aairpoorts� `port hangar rental; airport leasing, if operating airport; airport terminal services; and hangar
(9.1 G operat%ionns;�and airport and aircraft service and maintenance including: aircraft cleaning and janitorial
_--service;,aircraft servicing/re pairing, except on a factory basis; vehicle maintenance shops (including
Al vehicle and equipment rehabilitation mechanical repairs, painting, fueling, lubrication); and material
handling facilities.
For questions, please contact the DWQ Regional Office for ,your area. (See page 4)
(Please. print or type)
1) Mailing address of
Name
Owner Contact
Street Address
City
Telephone No.
E-mail Address
2) Location of facility producing discharge:
Facility Name VAeV-nCJ)1>r)at
Facility Contact Seq
Street Address r ar e. v a r
City t VY1 tno n State_
County 14vV er
Telephone No. ) 0 Yfl- 4333 wb Fax: -
Email 'tW ils ey Q -0 M 1 vr\ . Um
3) Physical Location Information:
Please provide a narrative description of how to get to
dist nce and direction from a roadway inWrsection). _
t)Ul r r i S .1 m l 1,e5 C a4+ nk mkc- P[
�r tar+
ZIP Code
w�ill..t,
facility (use skeet name , state road n imbers, nd
sena,rr le�m tnc . ay�rx Ar i rl rs
(A copy of a county reap or USGS quad sheet with facility�c'[erarly located on the map is a required part of this application.)
4) Latitude 0390
1�0.I)g I Longitude W-0 CJ5"I�i, IS t (degrees, minutes, seconds)
5) This NPDES Permit Application applies to which of the following :
❑ New or Proposed Facility Date operation is to begin
,8, Existing
Paget of 4
SWU-234-051309 Last revised 5113/09
d

NCG150000 N.O.J.
'1G
6) Standard Industrial Classification:
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility 1
SIC Code: q 5 i 02 av)A g5-13
7) Services and Activites
a) Provide a brief narrative description of the types of industrial activities and products
manufactured at this facility.
b) Check all services and activities offered or allowed at this facility
C—�/ Scheduled air transportation
t�X Air courier
E(Non-scheduled air transportation
PP Airport terminal services
Ir Aircraft storage
O Aircraft upholstery services
DK'Airfreight handling
0' Airport hangar rental
❑ Airport leasing
O Aircraft service and maintenance
("Aircraft cleaning and janitorial services
❑ Aircraft and/or vehicle rehabilitation
Rl"Aircraft and vehicle maintenance
ti (Aircraft and/or vehicle fueling
M' Aircraft and/or vehicle lubrication
❑ Aircraft and/or vehicle painting
[Aircraft and/or vehicle mechanical repair
[Material handling facilities
8) Discharge points I Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater from the property?
What is the name of the body orb4 ies ofwater (c eek, stream, river, lake, etc.) that the facility stormwater
discharges end up in? t� C C t° e.
if the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm
sewer system (e.g. City of Raleigh municipal torm sewer).
Receiving water classification (if known ): ih)
9) Does this facility
a) Have an untreated wastewater discharge? ❑ No X Yes
b) Have a treated wastewater discharge? 'K No ❑ Yes
If yes, list the permit number.
c) Have a wastewater discharge from a recycle system? PkNo ❑ Yes
If yes, list the permit number.
d) Have a non -discharge permit? R' No
If yes, list the permit number. _
❑ Yes
e) Discharge wastewater to a municipal wastewater collection system? X No ❑ Yes
If yes, list the municipality and permit number
Note: Stormwater discharge permit NCG150000 does not authorize the discharge of any wastewater.
If this site discharges wastewater, you must obtain the appropriate wastewater discharge
permit in addition to coverage for stormwater discharges under NCG150000.
10) Does this facility employ any best management practices for stormwater control?
O No A Yes 1 o
If yes, please briefly describe: We l f e�� 1Sr(A� Jcwa��
Paves Suleepl'vl ; kartous
1
Page 2 of 4
SWU-234-030909 Last revised 319109

NCG150000 N.O.I.
11) Does this facility have a 5tormwater Pollution Prevention Plan?
❑ No ❑ Yes K Being Developed OAre.
If yes, when was it implemented? if being developed, when will it be implemented? pa 1'�2 01
12) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
Xl No ❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month)
of hazardous waste?
0 No X Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
4 No ❑ Yes
d) Is hazardous waste stored in the 100-year flood plain?
No ❑ Yes If yes, include information to demonstrate protection from flooding.
e) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport 1 disposal vendor: _
Vendor address:
13) Certification:
North Carolina General Statute 143-215.6 B(i) provides that:
Any person who knowingly makes any false Statement, representation, or certification in any application, record, report, plan, or other
document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false
statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies; tampers with, or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the
[Environmental Management] Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine
not to exceed ten thousand dollars ($10,000).
hereby request coverage under the referenced General Permit. I understand that coverage under this
permit will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as
an individual permit_
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate,
'Al I D 00 7
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to:
NCDENR
Page 3 of 4
SWU-234-030909 Last revised 3/9109

NCG150000 N.O.I.
Final Checklist
This application will be returned as incomplete unless all of the following items have been included:
` ' Check for $100 made payable to NCDENR
,18( This completed application and all supporting documents
9 Copy of county map or USGS quad sheet (preferred) with location of facility clearly marked on map
Mail the entire package to:
Stormwater Permitting Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee 'the issuance of an NPDES permit.
For questions, please contact the DWQ Regional Office for your area.
DWQ Regional Office Contact Information:
Asheville Office ......
[phone]
Fayetteville Office
_.. [phone]
Mooresville Office
... [phone]
Raleigh Office ........
[phone]
Washington Office
_..[phone]
Wilmington Office ._.
[phone]
Winston-Salem ......
[phone]
Central Office .........(919)
807-6300
Page 4 of 4
SWU-234-030909 Last revised 319109

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WILMINGTON INTERNATIONAL AIRPORT
Wilmington, forth Carolina
Air Traffic/Operations Report
DECEMBER 2009
December 2009
ACTIVITY MTD I YTD
% Over/(Under) MTD
I% Over/(Under) YTD
1 20081 2 071 20061
2008 2007 2006
International:
Aircraft Cleared
313
1,870 20.4
18.7
(11.3)
27.1)
37,9
31.5
Persons Cleared
1,1631
10,4451 16.3
(26.7)
(20.9)
26.7
(37.4)
(32.1)
Airline Passengers:
En lanements
I 31,545
1 405,8741
2.01 5.21
23.9 0.8 0.2
1 25.8
De lanements
1 29,6631
401,252
1 1.51 1.51
22.4 1.0) 1 1.3
1 26.1
Cargo (Freight/Mail/Express) (Lbs):
Enplaned
147,710
1,521,853
18.9
(5.8
8.4
9.9
(17.8)
(3.8
Deplaned
199,044
1 2,094,149
5.5
(2.8)
2.9)
15.1)
25.5
(13.2
Aircraft Operations:
Airlines (>60 Seats)
487
5,782
3.6
3.6
20.5
8.9
2.7
15.1
Air Taxi (<60 Seats, Gar o & Mail)
1,444
15,711
5.7
(14.0)
(10.6)
(11.3)
(19.3)
(15.0)
General Aviation
2,286
30,099
(7.9)
(42.3)
(47.3
(22.1)
43.3
(45.7
Military
314
4,851
3.7)
(15.8)
(30.7)
2.0
6.2
(15.4)
Total Aircraft Operations
4,531
1 56,443
(3.1)
(30.1)
(33.4)
(16.4)
(32.3)
(33.4)
DECEMBER 2009

Airport Authority
Dr, C.harics R. Ka
Chaimian
Paul G. Burton
Vice -Chairman
Robert S. hippy
Secretary
John D. Lennon
Harry W. Stovall, Ill
Airport Director
Jon W. Rosboro.igh
March 2, 2010
NC Department of Environment and Natural Resources
Wetlands and Stormwater Branch
Al -IN: Mt•. Cory Larsen
1617 Mail Service Center
Raleigh, North Carolina 27699 1617
RE: Wilmington International COC No. NCG 150002
Dear Mr. Larsen:
:E
KM
`V
m 73
This letter is in response to your December 11, 2009, correspondence and request for
additional information.
1. Inventory of deicing/defrosting materials stored on site and a history of the
deicing material application for the last five (5) years.
Response: The Wilmington International Airport (ELM) stores three pallets of
Cryoice pellets on site to deice the runway. It is our emergency supply, and we use it
in the rare event of a snow accumulation and ground temperature below freezing.
Until Febtwry 2010, we only used one pallet. Last month we used two pallets for
the snow event. The material is the most environmentally friendly material available
on the tuarket. A copy of the Material Safety Data Sheet (MSDS) is included with
this correspondence.
Three tenants on ILM possess deicing equipment and fluids. US Airways
stores 1540 gals Type I and 825 gals Type IV; ASA/Delta stoves 440 gals Type I;
y {DES stores 165gals of Type 1 fluid. We were not able to go t five years of use data
from the cohipanies. Below you will find the data they provided:
Tenant
Year
Type I
Type IV
405 gals j
US Airways
2008-09
1500 gals
US Airways
2009-10 (YTD)
900gals_.
0 j
ASA/Delta
2008-09
104g gals
NIA j
FEDEX
2009-10 (Y rD)
< 55 gals
N/A
2. Inventory of bulls liquid, fuel and oil on the airport c:ottiplex:
Response. An inventory is enclosed in this correspondence, and it is listed by airport
tenant. I
3, ILM SPCC Program:
Response: ILM has had a SPCC program in place since 2002� As a part of the
NPDES permit process, ILM has an engineer revising the SP C document. The
document is still in revision at this time. We can send the on final 2002 SPCC if you
wish, or we can transmit a copy of the new SPCC when it is c , mpleted.
1740 Airport Boulevard • Wilmington, NC 98405 • Phone: [phone] • Fax: [phone] • www.Nlm.com

4. Vehicle and equipment maintenance activities and fret uency.
Response: The ILM airport complex consists of many tenant and businesses that
support air transportation and tourism. Examples include the following:
I LM a. ILM maintains its vehicle fleet (10 vehicles) and n I iowing equipment (S
tractors) at the Pennington Maintenance Center, The facility has a garage
permit in accordance with New Hanover County. ILM washes vehicles at
Rescue Base, which is equipped with an oil and water separator, as
needed by airport employees.
b. There are ttuee rental cars that operate Service Fadilities on the airport.
They perform minor maintenance and vehicle detailing on site with their
own employees and equipment_ The facilities are ben seven days per
week and the number of cars cleaned varies depending on the time of year
and Franchise Company. ILM's strategic plan calls for replacing all three
facilities with a consolidated facility. Until the Cape Fear Utility
Authority extends water and sewer to the propose site, ELM has
postponed design and construction of the new facility.
c. There are two Fixed Base Operators (FBO) on the airport that provide
aircraft maintenance on private airplanes with thei . own employees. The
EBOs do not normally wash aircraft. In the rare occurrence when they
do, they dry wash outside or wet wash inside a hangar with an oil and
water separator.
Based on the NCAA sponsored airport storm water training, ILM intends to use the
NPDES program frorn the approved airport permit template. We look forward to
working with you on the General Permit and other storm water issues related to the
Wilmington international Airport. Please feel free to contact me with questions or to
get additional information.
S Icerely,
ie A. V iIsey AAE
eputy Airport Dire o
cc: Jennifer Fuller, NCDOA
1 7.10 AirTx)rt Boulevard • Wilmington, NC 28405 • Phone: [phone] • Fax: [phone] • wvvw.Nlm.com

+CRV0rffCH
APPROVED FOR USE
AT AIRPORTS AND
COMMERCIAL FACILITIES
SPEC: CRYOTECHNAAC 0
BEN_--- FITS SOLID RUNWAY DEICER
Safe for runways: meets FAA -approved specifications
• Exothermic: gives off heat as it dissolves, melting ice faster than common deicers
• Faster and better: works fast like calcium chloride, without chloride -induced corrosion
Staying power: works longer, requiring fewer applications than other common deicers
• Easy to apply: applied with the same equipment as other solid deicers
• Safe for the environment: non -persistent, biodegradable
• Manufactured from pure materials: NAAC does not track like common deicers
• Anhydrous pellet contains 97%active ingredients for high performance
Spherical pellet is less dusty than granular deicers
PERFORMANCE
• Non -chloride based
• Excellent melting properties
• Works faster than urea, sodium chloride, and trihydrate sodium acetate
• Is active at low temperatures - 0°F (-l8°C)
• Requires less material than common deicers to achieve similar effectiveness
APPLICATION
Deicing - apply in uniform pattern,
Near 32F (0110 on thin ice= 5-7 Ibs/t000ft1(25-35 91m2)
Less than 10°F (-120C) on 1" (2.S cm) ice=10-25 lbs/1000ft2 (50-75 9/m2)
• Re -apply when new accumulation shows first tendency to bond
• Piow once bond is broken
• Prewetting - airports may apply Cryotech E36® to NAAC at spreader outlet at a rate of 10% by weight
ENVIRONMENT "
Lower 801) than urea
• Biodegrades at low temperatures
• Low toxicity to fish and mammals
HANDLING
• Store in original container
Avoid excessive moisture which may cause caking
• Excessive handling may cause dustiness
0
!So 9001
EM 39092
IS0 14001
EMS 89394
SEE REVERSE SIDE FOR PRODUCT SPECIFICATIONS
COMPLETE TECt{NICAE BROCHURE AVA[ ABLF UpoN RmutsT AN ISO 9001:2008 & 14001:2004 CERTIFIED COMPANY

PRODUCT
SPEC171CATIONS - C.R.YOTEc i NAAC°
COMPOSITION Sodium Acetate (NaAc)
97% minimum by weight, anhydrous sodium acetate
with less than 1 % corrosion inhibitors
PARTICLE SIZE Sieve % Passin
4 90
14 10
SHAPE Spherical pellet
BULK DENSITY 50 Ibs/ft3 to 54 Ibs/ft3
(0.8 g/cm3 to 0.85 g/Cm3)
TYPICAL pH 8 to 10.5 in a 10% solution
PACKAGING 25 kg (55 Ibs) poly bags - (40 bags minimum)
1000 kg (2205 lbs) Super Sacks - (1 SS minimum)
Bulk - (20 metric ton minimum)
AVren flC'evotk1iNAA(. t9 N-aAc-'WAydirAte
9-
Ice -!
i~ 6
Melting --7,
0 4
Te st u x
0
+fitg.,1� ISrtel;. V 2Sd'• g fC*
-15+lez. [' -9 deo. C.: C:
Revised - 06/09
TO ORDER OR FOR PRODUCT INFORMATION CONTACT
Ph: +1 319.372.6012 or +1 800.346.7237 Fax: [phone] E-mail:- [e-mail]
Cryotech Deicing Technology. 6103 Orthoway . Fort Madison, IA . 52627 . WWW.CRYOTECH.COM

iLM Bulk Oil and Hazardous Substance Storage
Container iD/
Storage Device
Quantity
Location
Product
Capacity
(gallons)
Container
Material
Secondary
Containment
Equipment Failure Rate of
Flow/ Comments'
SPCC Regulated Containers
AST
1
AAl Offices Site
Diesel Fuel
900
Steel
Integral, DW
1 gpm to instantaneous
AST
1
Aero Service South Fuel
Farm
Avgas
10,000
Steel
Concrete Dike
igpm to instantaneous
AST
2
Aero Service South Fuel
Farm
Jet A
20,000 each
Steel
Concrete Dike
1 gpm to instantaneous
AST
2
Air Wilmington Fuel Farm
#2
Jet A
20,000 each
Steel
Concrete Dike
1 gpm to instantaneous
AST
1
Air Wilmington Fuel Farm
#2
Avgas
15,000
Steel
Concrete Dike
1 gpm to instantaneous
AST
1
Air Wilmington Self Serve
Fuel Site
Jet A
10,000
Steel
Integral, DW
1gpm to instantaneous
Refueler Truck
4
Air Wilmington Apron
Jet A
5,500 each
Steel
None
lgpm to instantaneous
Refueler Truck
1
Air Wilmington Apron
Avgas
1,000
Steel
None
igpm to instantaneous
Refueler Truck
2
Aero Service Apron
Avgas
1,200 each
Steel
None
1 gpm to instantaneous
Refueler Truck
2
Aero Service Apron
Jet A
2,200 each
Steel
None
1 gpm to instantaneous
UST
2
Air Wilmington Fuel Farm
#1
Jet A
12,000 each
Steel
None, single -walled
Tank Guard System Installed
Drums
M, varies
Air Wilmington Fuel Farm
#1
Oil (varies)
M a 55
Steel
Yes, spill pallets
5 drums on -site
UST
1
Air Wilmington Fuel Farm
#1
Jet A
15,000
Steel
None, single -walled
Tank Guard System Installed
AST
1
Thrifty Rental Car Center
Gasoline
2,000
Steel
Integral, DW
1 gpm to instantaneous
AST
1
Thrift Rental Car Center
Oil
280
Steel
Integral, DW
1 gpm to instantaneous

Container IDI
Storage Device
Quantity
Location
Product
Capacity
(gallons)
Container
Material
Secondary
Containment
Equipment Failure Rate of
Flow/ Comments'
AST
1
Thrifty Rental Car Center
Waste Oil
280
Steel
Integral, DW
1 gpm to instantaneous
AST
1
FAA Airport Radar Site
Diesel
1,000
Steel
Integral, DW
Emergency Generator
AST
1
FAA ATC Tower Building
Diesel
2,000
Steel
Integral, DW
Emergency Generator
UST
1
Hertz Rental Car Center
Gasoline
10,000
Steel
None
Tank Guard System Instailed
AST
1
Hertz Rental Car Center
Oil
280
Steel
Integral, DW
1 gpm to instantaneous
AST
2
ILM Maintenance Base
Diesel (1)
Gasoline (1)
2,000 each
Steel
Integral, DW
1 gpm to instantaneous
forums
M
ILM Maintenance Base
Various
M a 55
Steel
Yes, spill pallets
Stored indoors
LIST
1
ILM Passenger Terminal
Diesel
3,380
Steel
None
Tank Guard installed
/Emergency Generator
AST
1
1LM Passenger Terminal
Diesel
100
Steel
Concrete Dike
Emergency Generator
AST
1
ILM Passenger Terminal
Gate Area
Diesel
461
Steel
Integral, DW
Emergency Generator
AST
1
ILM International
Terminal
Diesel
XXX
Steel
Integral, DW
Emergency Generator
AST
1
ILM Airfield Light Vault
Diesel
1,000
Steel
Integral, DW
Emergency Generator
Transformer
1
ILM Airfield (former ATC
Building)
Oil
1 < 55 gallons
Steel
None
Pad Mounted
Transformer
i
ILM Rescue Bass
Oil
1> 55 gallons
Steel
None
Pad Mounted
Transformer
1
ILM Passenger Terminal
(Loading Dock)
Oil
1> 55 gallons
Steel
None
Pad Mounted
Transformer
1
Air Wilmington Terminal
Oil
1> 55 gallons
Sleet
None
Pad Mounted
Transformer
1
FAA Navaids
Oil
1> gallons
Steel
bone
Pad Mounted
Transformer
1
ILM Airfield Light Vault
Oil
1> 55 gallons
Steel
None
Pad Mounted

Container IDl
Quantity
Location
Product
Capacity
Container
Secondary
Equipment Failure Rate of
Storage Device
(gallons)
Material
Containment
Flow/ Comments'
Nan-SPCC Regulated Containers/ Other Hazardous Substance Containers
Drums
M, varies
US Airways- Passenger
Propylene Glycol
M 0 275
Plastic
None
Type I and IV ADF; Stored
Terminal
inside
Drums
M, varies
Delta -Passenger
Propylene Glycol
M @ 55
Plastic
done
Type I and 1V ADF; Stored
Terminal
inside
Drums
M, varies
FEDEX
Propylene Glycol
M @ 55
Plastic
None
Type I ADF; stored inside at Air
Wilmington
DW = Double -walled M = Multiple gpm = gallons per minute
For prediction of the direction, rate of flow, and total quantity of oil/hazardous substance discharge from a container leak or failure: See Airport Site Map
and Section 1.3.5 Airport Drainage for direction of potential discharge.