NCS000462_OTHER_20161031

NORTH CAROLINA
r,
Department of Environmental Qual

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
� r �S � D
DOC TYPE
0 FINAL PERMIT
-�-MONITORING REPORTS- -----------
❑ APPLICATION
❑ COIy1Ptl"ANCE
�3THER
DOC DATE
❑ ol6 I (p I O 3
YYYVMMDD

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Mr. James Murphree
Matheson Tri-Gas, Inc.
1700 Scepter Road
Waverly, TN 37185
Dear Mr. Murphree:
PAT MCCRORY
Co emrrr
❑ONALD R. VAN DER VAART
Secrvory
TRACY DAVIS
Director
October 31, 2016
Subject: NPDES Stormwater Permit NCS000462
Matheson 'Fri -Gas, Inc.
Formerly Air Liquide Industrial US LP
Wake County
Division personnel received your request to revise your stormwater permit to accurately
reflect your new company and/or facility name. However, the permit coverage expired
November 30, 2016. Individual NPDES stormwater permits typically expire 5 years from
the date of issuance and are subject to a renewal process at that time. - fart III, Section B.1.
directs the permittee to apply for renewal no later than 180 days prior to expiration. We
cannot transfer an expired permit. We can, however, both transfer and renew at the same
time.
In order to renew NCS000462, please complete the attached three forms and mail to the
DEMLR Central Office in Raleigh. Once we receive the completed documents, we can
begin the renewal process. Because the process includes a staff report from the regional
office and a 30-day public notice period; you can expect a 75-90 day turn around time from
the date we receive completed documentation.
We will hold your name/ownership change request until the renewal application comes in,
As long; as there are no outstanding annual lees for this permit, there is no fee associated with
the renewal.
Slate of North Carolina I Environmental (htality I Fnergy, Mineral and Land Resources
1612 Mail Service Center 1 512 Nonh Salisbury Street I Raleigh, Nonh Carolina 27699-1612
919 707 9220 T

If you have any questions or need further information, please contact the Stormwater
Permitting Program at [phone].
Sincerely,
ORIGINAL SIGNED BY
BETHANY GEORGOULIAS
for Tracy E. Davis, P.E., CPM, Director
Division of Energy, Mineral and Land
cc: Wake County
fA I& Regional Office
Storm ater Permitting Program Files
Central Files
Enclosures (Renewal Forms)

DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
PERMIT NO. NCS000462
,rO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance 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,
Matheson Tri-Gas, Inc.
is hereby authorized to discharge stormwater from a facility located at
Matheson Tri-Gas, Inc.
326 Forestville Road
Wake Forest
Wake County
to receiving waters designated.as Smith Creek; a class.C; NSW stream in the Neuse River Basin,
in accordance with the discharge limitations, monitoring requirements, and other conditions set
forth in Parts 1, 11, III, IV, V and VI hereof.
Signed this day October 31, 2016.
ORIGINAL SIGNED BY
BETH �4Y GEORGOUL AS
.far Tracy E. Davis, P.E., Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission

A� Division of Energy, Mineral & Land Resources
�� Land Quality Section/Stormwater Permitting
National Pollutant Discharge Elimination System
NCDENR
«,. G. u. '.,.'
R[fay.ce, a. PERMIT NAME/OWNERSHIP CHANGE FORM
rmwp:w[Kr w0 H D
FOR AGENCY USE ONLY
Date Received
Year Month
Day
1. Please enter the pert -nit number for which the change is requested.
NPDES Permit (or) Certificate of Coverage
N C $ tP 10 10 1 4 G 2 N C G
11. Permit status prior to requested change.
a. Permii issued to (company naive): Air Li uide Industrial US LP
b. Person legally responsible for permit. Donna M Smith
First MI Last
Director of Environmental Cgn2liance, Air Liquide USA LLC
Tine
Permit Holder Mailing Address
Houston TX 77024
01V State Zip
{ 713 ) 402.2399 ( 713 _) 402.2054
I'ltnne - � � Fax ._.. Y
Facility name (discharge): Air Li uide Industrial U.S. LP
Facility address: 326 Forestville Road
Address
Wake Forest NC 27587
City State Gip
e. Facility contact person: Brett Phillips ^(919 ) 556-6461
First l MI I Last
Phone
111. Please provide the following for the requested change (revised permit).
a. Request for change is a result of: _ Change in ownership of the facility
❑ Name change of the facility or owner
If aiher please explain:
b. Permit issued to (company name): Matheson Tri-Gas, Inc. W
c. Person legally responsible for permit:
RECEIVED
h I lf; 1. 8 2015
DENR-LAND QUALITY
STORMI<WER i'ERM11'7iNG
d. Facility name (discharge):
e. Facility address:
f: Facility contact person:
Tames �1v urph_ Free _
First Ml Last /
Corporate Director of Environmental Compliance ✓
Title
1700 Scepter Road
Permit Holder Mailing Address
Waverly TN 37185
01V State Zip
( 931 ) 296-8151 [e-mail]
Phone 1--mail Address
Matheson Tri-Gas, Inc.
326 Forestville Road
Address
Wc. �r� t NC 27587
City Slate `Lip
Brett Phillips_
First MI. Last
919-556-6461 bpltillips@nall)esongas.com
Phone
li-mail Address
V. Permit contact information (if different from the person legally responsible for the permit)
Revised Jan, 27, 2014

NPDES PERMIT NAME/OWNERSHIP CHANGE FORM
Page 2 of 2
Permit contact: James Murphree
First MI Lost /
Corporate Director of Environmental Compliance
'hide
1700 Scenter Road
Mailing Address
Waverly TN 37185
City state zip
( 931 296-8151 imurphreepmatheson gas. con
Phone E-mail Address
V Will the permitted facility continue to conduct the same industrial activities conducted prior
to this ownership or name change?
❑x Yes
❑ No (please explain)
VI Required Items: THIS APPLICATION WILL BE RETURNED UNPROCESSED IF ITEMS
ARE INCOMPLETE OR MISSING:
® This completed application is required for both name change and/or ownership change
requests.
❑x Legal documentation of the transfer of ownership (such as relevant pages of a contract deed,
or a bill of sale) is reed ibr an ownership change request. Articles of incorporation are
not sufficient for an ownership change.
......................................................................................................................
The certifications below must be completed and signed by both the permit holder, prior to the change, and
the new applicant in the case of an ownership change request. for a name change request, the signed
Applicant's Certification is sufficient,
PERMITTEE CERTIFICATION (Permit holder prior to ownership change):
1, ih,nna M Smith, attest that this application for a name/ownership change has been reviewed and is accurate
and complete to the best of my knowledge. 1 understand that if all required parts of this application are
not completed and that if all required supporting information is not included, this application package
will be returned as incomplete.
'4
12 August 2016
Signature Date
APPLICAN ' CFRICATION
I, at this application for a name/ownership change has been reviewed and is accurate and
complete to the best of my knowledge. 1 understand that if ali required parts of this application are not
completed and that if all required supporting; information is not included, this application package will be
returned as incomplete. V 1 ) / k // 7C..,„
lgnatore Date
PLEASE SEND THE COMPLETE APPLICATION PACKAGE TO:
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
1612 Mail Service Center
Raleigh, North Carolina 27699-I612
Revised Jan. 27, 2014

MATHESON
ask...The Gas Professionals"
August 11, 2016
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
RE: Permit Name/Ownership Change Form
NPDES Stormwater Permit
Permit No. NCS000462
To Whom It May Concern,
1700 Scepter Roar!
Waverly, TN 37186
Tel: [phone]
[e-mail]
REFCt` / v
ED
DE'R 1 A
SVD
7'ORJW t'A r R I'QRMI1" - C
Please find attached the Permit Name/Ownership Change Form for National Pollutant Discharge Elimination
System Stormwater Permit to provide notification of a change in ownership. The facility is located at 326
Forestville Road, Wake Forest, Wake County, North Carolina. The current permittee is Air Liquide USA,
LLC. The new owner is Matheson Tri-Gas, Inc. The property transfer is scheduled for approximately
August 22, 2016.
Please do not hesitate to contact me if you have any questions or concerns either via electronic mail at
[e-mail] or by telephone at 93I-296-5151.
Regards,
James Murphrec, Corporate Director of Environmental Compliance
Matheson Tri-Gas, Inc.
Attachments
A Taiyo Nippon Sanso Group Company

ENECUTION VE)MON
ASSET PURCHASE AGREEMENT
BY AND BETWEEN
MATHESON TRI-GAS, INC.,
as Buyer,
AIR LIQUIDE INDUSTRIAL U.S. LP,
AND
AIRGAS MERCHANT GASES, LLC,
as Sellers,
AND
TAIYO NIPPON SANSO CORPORATION,
as Guarantor
DATED AS OF JUNE 23, 2016

ASSET PURCHASE AGREEMENT
This ASSET PURCHASE AGREEMENT (this "Agreement"), dated as of June
23, 2016, is entered into between Air Liquide Industrial U.S. LP, a Delaware limited partnership,
("Air Liquide") and Airgas Merchant Gases, LLC, a Delaware limited liability company,
("Air as" and, together with Air Liquide, "Sellers" and, each, a "Seller"), Matheson Tri-Gas,
Inc., a Delaware corporation ("Buyer") and Taiyo Nippon Sanso Corporation, a corporation
organized under the laws of Japan ("Guarantor").
RECITALS
WHEREAS, Sellers are engaged in, among other businesses, the Business;
WHEREAS, pursuant to the Termination and Release Agreement, Buyer, Air
Liquide and Air Liquide America L.P., a Delaware limited partnership, ("ALALP") have agreed
to terminate certain portions of the Non -Competition Agreement, dated as of February 5, 2015,
by and between Buyer, Air Liquide and ALALP; and
WHEREAS, Sellers wish to sell and transfer to Buyer, and Buyer wishes to
purchase and assume from Sellers, the Transferred Assets and Assumed Liabilities, subject to the
terms and conditions set forth herein.
NOW, THEREFORE, in consideration of the premises and the mutual covenants
and agreements container) herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Parties hereto and Guarantor, intending to be
legally bound, agree as follows:
ARTICLE I
DEFINITIONS
Section 1.1 Definitions. As used in this Agreement, the following terms have the
respective meanings set forth below.
"Accounting Firm" means Deloitte LLP; provided, however, that if Deloitte LLP shall
decline such appointment or otherwise be unable to serve, "Accounting Firm" shall mean such
other independent, nationally recognized, public accounting firm that will accept such
appointment and that is mutually agreed to by Buyer and Air Liquide; ro�_.vided, further, that if
Buyer and Air Liquide are unable to agree on an independent public accounting firm that will
accept such appointment within ten (10) Business Days after notice that Deloitte LLP has
declined such appointment or is otherwise unable to serve, either Air Liquide or Buyer may
request that a nationally recognized public accounting firm that has not had a material
relationship with any of the Parties or Guarantor in the preceding two (2) years be appointed by
the American Arbitration Association and, upon such appointment, "Accounting Firm" shall
mean such firm.
"AccountingFirm's Report" has the meaning set forth in Section 2.7(b)(iii).

ARTICLE 2
PURCHASE AND SALE OF ASSETS; ASSUMPTION OF LIABILITIES
Section 2.1 Transferred Assets. On the terms and subject to the conditions set
forth in this Agreement, at the Closing, each Seller, as applicable, shall (and each Seller shall
cause its applicable Affiliates to) sell, transfer, convey, assign and deliver to Buyer, and Buyer
shall purchase, acquire and accept from the applicable Seller (and, if applicable, from such
Affiliates), free and clear of any Encumbrances other than Permitted Encumbrances, all of such
Seller's and such Affiliates' right, title and interest in, to and under all of the assets, properties
and rights of every kind and nature, whether real, personal or mixed, tangible or intangible
(including goodwill), whether now existing or hereafter acquired, used or held for use at a
Transferred Facility and directly associated with the Business (but in all cases excluding the
Excluded Assets) (collectively, the "Transferred Assets"), including the following:
(a) all Inventory located at the Transferred Facilities or in storage or in transit
to or from a Transferred Facility and held for use in the Business which has not been sold or
otherwise disposed of by such Seller or such Affiliate in the Ordinary Course of Business as of
the close of business on the day immediately preceding the Closing Date (the "Transferred
Inventory");
(b) all Contracts or portions of Contracts listed on Section 2.1 of the Sellers
Disclosure Schedules as amended pursuant to Section 5.20 (such assigned Contracts or assigned
portions of such Contracts, the "Assigned Contracts," which, for the avoidance of doubt, include
the Assigned Customer Contracts, the Transferred Transportation Asset Leases and the
Transferred Facilities. Leases);
(c) all prepaid expenses, credits, deposits and advance payments to the extent
related to the Business;
(d) to the extent transferable under applicable Law, all Permits of such Seller
or such Affiliate and primarily related to the Business (which are listed on Section 2.1(d) of the
Sellers Disclosure Schedules) (the "Transferred Permits');
(e) all lists of Customers, including the Customer lists set forth in
Section 2.1(e) of the Sellers Disclosure Schedules;
(f) all furniture, fixtures, equipment (including office, computer and
telephone equipment), machinery, tanks, cryogenic vessels (and all associated Asset Cylinder
pallets), tools and all other tangible personal property (the "Tangible Personal Property") located
at the Transferred Facilities or held primarily for use in the Business regardless of location (such
property, excluding the Transferred Transportation Assets, the Asset Cylinders and the
Transferred Spare Parts, the "Transferred Tangible Personal Property") that are owned by such
Seller or such Affiliate, other than any Excluded Assets;
14

(g) all leasehold interests created by leases of the Transferred Tangible
Personal Property under which such Seller or such Affiliate is a lessee, including those listed on
Section _2.1W of the Sellers Disclosure Schedules (the "Tangible Personal Property Leases");
(h) all trucks, tractors, trailers, railcars, forklifts, automobiles or other vehicles
listed on Section 2.1(h) of the Sellers Disclosure Schedules (the "Transferred Transportation
Assets") that are owned by such Seller or such Affiliate and used in the Business (the " caned
Transferred Transportation Assets");
(i) all leasehold interests created by leases of the Transferred Transportation
Assets under which such Seller or such Affiliate is a lessee, including those listed on
Section 2.1(i) of the Sellers Disclosure Schedules (the "Transferred Transportation , Asset
Leases';
0) the Asset Cylinders located at the Transferred Facilities (other than in
connection with the Alaska Business) and the Asset Cylinders listed on Section 2.1(i) of the
Sellers Disclosure Schedules (which are the Assets Cylinders used or held for use in connection
with the Alaska Business);
(k) the owned Transferred Facilities;
(1) the Transferred Facilities Leases;
(m) all catalogs, sales promotion literature and advertising materials relating to
the Business; provided however, that Sellers shall be entitled to retain copies of any such
materials that also relate to the Excluded Assets or any businesses of Sellers other than the
Business;
(n) (i) originals or copies of all books of account, ledgers and general,
financial and accounting records, machinery and equipment maintenance Files, environmental
and operational records and reports, appraisals, Customer purchasing histories, Supplier lists,
production data, quality control records and procedures, Customer complaints and inquiry files to
the extent related to the Business or the Transferred Assets, in each case to the extent maintained
at one of the Transferred Facilities, and (ii) copies of all enterprise resource planning data located
at the Transferred Facilities or primarily related to the Business for the six (b) month period
leading up to the Closing; provided, however, that, in the case of this Section 2.1(n), (A} to the
extent that any portions of such books or records arise out of or relate to both the Business and
any other business of either Seller and/or its Affiliates, such portions relating to any other
business of such Seller and/or its Affiliates may be extracted or redacted at the sole discretion of
such Seller, (B) all Tax Returns, other documents relating to or supporting such Tax Retums
(including advice and other communications from third parties, transfer pricing documentation,
and work files), and all accounting books and records relating to accounting for Taxes shall be
excluded and (C) all email records shall be excluded (other than in accordance with the
procedures and guidelines set forth in Section 5.8(b));
(o) all of Sellers' and their respective Affiliates' goodwill to the extent related
to the Business;
15

(p) to the extent assignable, all rights under warranties, indemnities and all
similar rights against third parties to the extent related to any of the Transferred Assets;
(q) all Included Intellectual Property;
(r) all Assigned Customer Contracts; and
(s) all spare parts, repair parts and specialty gas equipment held solely for use
in the operation of the Business regardless of location (the "Transferred Spare Parts").
Section 2.2 Excluded Assets. Notwithstanding the foregoing or anything in this
Agreement to the contrary, Buyer expressly acknowledges and agrees that it is not purchasing or
acquiring, and neither Seller nor any of the Affiliates of either Seller is selling, assigning,
transferring or conveying, any right, title or interest in, to or under (i) the Excluded Business or
(ii) the following assets, properties or rights of either Seller or any of their respective Affiliates
which shall be excluded from the Transferred Assets (collectively, the "Excluded Assets"):
(a) the rights that accrue or will accrue to Sellers and any of their Affiliates
pursuant to this Agreement, the Confidentiality Agreement, the Clean Team Agreement, the
Termination and Release Agreement or any of the Ancillary Agreements;
(b) the corporate seals, minute books, stock books, Tax returns and other
Tax -related documents, books of account or other records having to do with the corporate
organization of Sellers or any of their Affiliates, all employee -related or employee
benefit -related files or records, any books and records (including medical records) relating to
Sellers or their respective Affiliates generally and not related to the Transferred Assets or the
operation of the Business, and any other books and records that Sellers or any of their Affiliates
are prohibited from disclosing or transferring to Buyer under applicable Law or are required by
applicable Law to retain;
(c) all cash and cash equivalents, bank accounts and securities of any kind of
Sellers or any of their Affiliates, whether or not held in connection with the Business;
(d) all Contracts or portions of Contracts of either Seller or any of the
Affiliates of either Seller that are not Assigned Contracts;
(e) all accounts receivable as of the Closing Date in respect of the Business;
(f) all insurance policies of either Seller or any of the Affiliates of either
Seller, and all rights of any nature with respect thereto, including rights to applicable claims and
insurance recoveries thereunder;
(g) all rights (i) in connection with any Legal Proceedings of any nature
available to or being pursued by either Seller or any of the Affiliates of either Seller, whether
arising by way of counterclaim or otherwise and (ii) under indemnities and all similar rights of
either Seller or any of the Affiliates of either Seller against third parties;
16

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the date first written above by their respective officers thereunto duly authorized.
AIR LIQUIDE INDUSTRIAL U.S. LP
By:
Na/�-7r
Title: �/��r
AIRGAS MERCHANT GASES, LLC
Name:
Title:
MATHESON TRI-GAS, INC.
0
Name: Thomas S. Kallman
Title: President & Chief Executive Officer
TAIYO NIPPON SANSO CORPORATION
By:
Name: Yujiro lchihara
Title: President & Chief Executive Officer
[Signature Page to Asset Purchase Agreement - Main)

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the date first written above by their respective officers thereunto duly authorized.
AIR LIQUIDE INDUSTRIAL U.S. LP
0
Name:
Title:
AIRGAS MERCHANT GASES, LLC
By:
Name: 7WO(Aw A. sMAER
Title: PA&1P &,it
MATHESON TRI-GAS, INC.
By:
Name: Thomas S. Kallman
Title: President & Chief Executive Officer
TAIYO NIPPON SANSO CORPORATION
By:
Name: Yujiro Ichihara
Title: President & Chief Executive Officer
[Signature Page to Asset Purchase Agreement - Main]

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the date first written above by their respective officers thereunto duly authorized.
AIR LIQUIDE INDUSTRIAL U.S. LP
By:
Name:
Title:
AIRGAS MERCHANT GASES, LLC
By:
Nacre:
Title:
MATHESON TRI-GAS, INC.
By —
Name: Thomas S. Kailman
Title: President & Chief Executive Officer
TAIYO NIPPON SANSO CORPORATION
By:
Name: Yujiro ichihara
T'itle: President & Chief Executive Officer
[Signature Page to Asset Purchase Agreement - Main]

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the date first written above by their respective officers thereunto duly authorized.
AIR LIQUME INDUSTRIAL U.S. LP
By:
Name:
Title:
AIRGAS MERCHANT GASES, LLC
By:
Name:
Title:
MATHESON TRI-GAS, INC.
By:
Name: Thomas S. Kallman
Title: President & Chief Executive Officer
TAIYO NIPPON SANSO CORPORATION
i'
By, _ 'h ,
Name: Yujira Ichihara
Title: President & Chief Executive fficer
[Signature Page to Asset Purchase Agreement - Main]

CONFIDENTIAL
DISCLOSURE SCHEDULES
TO
ASSET PURCHASE AGREEMENT
BY AND BETWEEN
MATHESON TRI-GAS, INC.,
as Buyer
AND
AIR LIQUIDS INDUSTRIAL U.S. LP,
AND
AIRGAS MERCHANT GASES, LLC,
as Sellers,
AND
TAIYO NIPPON SANSO CORPORATION,
as Guarantor
DATED AS OF May S, 2016

SECTION 3.15 Real Property................................................................................................
47
SECTION 3.15(e) Transferred Facilities.................................................................................
48
SECTION 3.16 Brokers.............................................................................................................
53
SECTION 3.17 Customers and Suppliers...............................................................................
54
SECTION3.18 inventory..........................................................................................................
58
SECTION 5.1(a) Conduct of Business......................................................................................
59
SECTION 5.1(b) Conduct of Business ................................................................................
60
SECTION 5.1(b)(iii) Conduct of Business -- Capital Expenditures .......................................
61
SECTION 5.1(b)(vii) Conduct of Business — Compensation..................................................
62
SECTION 5.2(a) Environmental Due Diligence... ...................................................................
63
SECTION 5A0(a) Employee List..............................................................................................64
SECTION 5.10(t) Covered Multiemployer Plans...................................................................
65
SECTION 5.10(h) Employee Compensation...........................................................................
66
SECTION 5.11(a) Retained Names and Marks ............... :.......................................................
67
SECTION 5.13 Financial Assurances......................................................................................
68
SECTION 5.18(b) Non-Solicit...................................................................................................
69

SECTION 3.15(e)
Transferred Facilities
OWNED TRANSFERRED FACILITIES
Facility
Address
City
State
Postal code
Owner
Fairbanks
641 Hughes Avenue
Fairbanks
AK
99709
Airgas USA, LLC
Gaston
180 Frontage Rd
Gaston
SC
29053
Airgas Merchant Gases, LLC
Madison
218 Weisenberger Rd.
Madison
MS
39110
Air Liquide Industrial U.S. LP
Mapleton
7700 W. Wheeler Road
Mapleton
1L
61547 1
Air Liquide Industrial U.S. LP
Mt. Vernon
1101 Highway 69 South
Mt. Vernon
IN
47620
Air Liquide Industrial U.S. LP
Mulberry
500 Industrial Park Rd
Mulberry
AR
72947
Airgas Merchant Gases, LLC
Mulberry Depot
305 E Mulberry Hwy 64
Mulberry
AR
72947
Airgas Merchant Gases, LLC
Spartanburg Brooks
125 Brooks Blvd.
Spartanburg
Sc
29307
Air Liquide Industrial U.S. LP
St. Mary's
203 West Creek Rd
St Marys
PA
15857
Air Liquide Industrial U.S. LP
Toledo
1720 Trade Rd.
Holland
OH
43528
Air Liquide Industrial U.S. LP
Wake Forest
326 Forestville Rd.
Wake Forest
NC
27587
Air Liquide Industrial U.S. LP
LEASED TRANSFERRED FACILITIES
Facility
Address
City
State
Postal code
Lessee
Albany
1297 Feura Bush Rd.
Feura Bush
NY
12067
Air Liquide Industrial U.S. LP
Anchorage
6350 Artie Blvd
Anchorage
AK
99518
Airgas-Nor Pac., Inc.
Burlington
815 S McHenry Street
Burlington
WI
53105
Air Liquide America Corporation
Carrollton
109 Tom Harris Road
Carrollton
KY
41008
Nitrous Oxide Corp.
48

Chattanooga
4531 N. Access Rd
Chattanooga
TN
37415
Donora
1 Nitrous Ln
Donora
PA
15033
Air Liquide America Corporation
Ft. Meade, FL
3301 Hwy 630 W
Ft. Meade
FL
33841
Air Liquide Industrial U.S. LP
Kenai
42400 Kenai Spur Highway
Kenai
AK
99611
Airgas - Nor Pac, Inc,
Lawton
1302 SW 112th St
Lawton
OK
73501
Airgas, Inc.
Martinez
651 Solano Way
Martinez
CA
94553 1
Air Liquide America L.P.
Middletown
c/o AK Steel- Door 360 1801
Crawford St.
Middletown
OH
45044
Air Liquide Industrial U.S. LA
Pittsboro
8000 N. Co. Road 255 E
Pittsboro
IN
46167
Air Liquide America, L.P.
Richmond
1100 Hensley St
Richmond
CA
94801
Air Liquide America Specialty
Gases, LLC
Spartanburg Sha
1540 Dewberry Rd.
Spartanburg
SC
29307
Air Liquide Industrial U.S. LP
West Point
300 DuPont Street
West Point
VA
23191
Air Liquide Industrial U.S. LP
TRANSFERRED FACILITIES LEASES
Industrial and Medical Gases Business; Alaska Business
Site
Tenant
Landlord
Document
Amendments/Assignment
Air Liquide
Lease Agreement between Owens
Assignment of Leases between AL[G LLC and Air
Albany
Industrial
Owens Corning
Corning and MG Industries dated
y
Liquide Industrial U.S. LP dated August 5, 2004
U-S. LP
December 19, 1997
Air Liquide
Land Lease Agreement between Sall -
Memorandum of Lease between Saint-Gobain
Burlington
America
Ardagh Glass
Foster
Poster Glass Container Company,
Containers, Inc. and Air Liquide America Corporation
Corporation
L.C. and Air Liquide America
dated February 6, 2002
Corporation dated September 15, 199$
49

A F-IWA
'ri M.
NC®ENR
North Carolina Department of Environment and Natural, Resources
Beverly Eaves Perdue
Governor
Mr. Damian Vickerman
Air Liquide Industrial U.S. LP
2700 Post Oak Blvd
Houston, NC 77056
Dear Mr. Vickerman:
Division of Water Quality
Coleen H. Sullins -
Director
September 13, 2011
Subject: Draft NPDES Stormwater Permit
Permit No. NCS000462
Wake Forest ASU
Wake County
Dee Freeman
Secretary
Enclosed with this letter is a copy of the draft stormwater permit for your facility. Please review the draft
very carefully to ensure thorough understanding of the conditions and requirements it contains.
The draft permit contains the following significant changes from this facility's current permit:
Analytical monitoring_ changes:
1. Total Suspended Solids (TSS) has been removed from the analytical monitoring parameters and therefore
analytical monitoring is only required if there is vehicle maintenance on the site.
Other permit changes:
1. Additional guidance is provided about the Site Plan requirements. The site map must now identify if the
receiving stream is impaired and if it has a TMDL established. It must also describe potential pollutants
in each outfall. The map requirements are stated more explicitly. And, the site plan must contain a list of
significant spills that have occurred in the past three years and also must certify that the outfalls have
been inspected to ensure that they do not contain non-stormwater discharges. Additional information is
provided in Part II Section A.
2. Additional requirements for the Stormwater Management PIan have been specified in Part II Section A.
More details regarding secondary containment are provided.
3. Additional requirements for the Stormwater Pollution Prevention Plan have been specified in Part I1
Section A. The plan must also be updated annually to include a list of significant spills and to certify that
the outfalls do not contain non-stormwater discharges.
4. The facility must now implement a semi-annual Facility Inspection Program of the site's Stormwater.
management controls as specified in Part It Section A.
5. Information regarding the No Exposure Exclusion has been added to this draft permit. If industrial
materials and activities are not exposed to precipitation or runoff as described in 40 CFR §122.26(g), the
facility may qualify for a No Exposure Exclusion from NPDES stormwater discharge permit
requirements. Additional information is provided in Part I Section A.
6. Per the requirements of the Neuse Riparian Buffer Rule, all stormwater drainage from portions of
this site that have been constructed after July 22,1997 must be discharged through a correctly
designed level spreader or another device that meets diffuse flow requirements per 15A NCAC 2B
Wetlands and Stormwater Branch One
1617 Mail Service Center, Raleigh, North Carulina 27699.1617 NorthCarof ina
Location: 512 N. `..alisbury SI. Raleigh, North Carolina 27604 yr I
''hone: 919-807-r,'^001 W. 919.807-64941''ustome. iervice 1-877-621-6748 �t%tuL rt 6l�%�
rterneL www.nckateiquaiiit.org �/
" r Equal Opporurily l Affirmaliv;; Action Employer

Mr. Stave Stadehi,an
•Oir Liquide Indu--l-rial U.S. LP
fermi' No. NCS000462
.0233. Diffuse flow requirements are described in Chapter 8 of the North Carolina Stormwater BMP
Manual, available at: http://portaI.ncdenr.org/web/wq/ws/su/bmp-manual.
In addition to submitting two signed copies of DMRs to Central Files, a separate signed Annual Summary
DMR copy must be submitted to the local DWQ Regional Office by March 1 of each year.
Please submit any comments to me no later than thirty (30) days following your receipt of the draft.
Comments should be sent to the address listed at the bottom of this page. If no adverse comments are
received from the public or from you, this permit will likely be issued in about two months.
If you have any questions or comments concerning this draft permit, contact me at [phone] or
[e-mail]
cc: Raleigh Regional Office
Stormwater Permitting Unit
Attachments
Sincerely,
Brian Lowther
Environmental Engineer
Stormwater Permitting Unit
2

AFFIDAVIT OF PUBLICATION
NORTH CAROLINA.
Wake County. Ss.
-
NC DIVISION OF WATER QUALITY
'INTENT TO{ISSUE A! 'i
STORMWATER.D45CHARGE4P&RMIT I
Public Comment or.obfectlonuo the draft
ipermit is invited. Sub•nit.writlen comments -
la DWQ at the address below. All comments
k received prior to Ocleber 21, 2011 will be
"considered IR the finalldeterminotion re-
ggrding Permit Issuance and Permit arovl-
AnpilCdtlon: Air LlgUie',lndusl6ai U S LP,,,
1700 Post Oak Blvd. Ste IBM Houston, TX
17056 has applied for an NPOES permit t0
dischorge,stormwater.from onoridusiriai
faCllityy ate, Wake Forest ASU, 326 Pore9t.
i vllle Rd, Wake:ForesL.NC;- Wake County,
Then facili1.y,.dischof9es to Smith Creek,
' Copies of, the draft, permit, -Number
• NC5000462, are avar a61e at: •' • ° ,
! Mtp;llpartal.ol nr.orglwe4fwWws/sul"
I current-n6liCes Additional permit docu;l
menIs ore available for the reproduction
DWQ Stormwcler Permittlna Unit
I 512:N, Salisbury Street -rj.
(Iocatian,-xip.276a41—
1617 Mall Service Center,lmoin „, t
1.. Raleigh, NC 27699-1617 , 'ri
OWQ contact: Brion Lowther'."..
4 (9195-807.068 I.li
brlan,[e-mail]
N&0: September-16,•2011�__` »�
Before the undersigned, a Notary Public of Wake
County North Carolina, duly commissioned and authorized to
administer oaths, affirmations, etc., personally appeared Debra
Peebles, who, being duly sworn or affirmed, according to law,
doth depose and say that she is Accounts Receivable Specialist
of The News and Observer a corporation organized and doing
business under the Laws of the State of North Carolina, and
publishing a newspaper known as The News and Observer, in
the City of Raleigh , Wake County and State aforesaid,
the said newspaper in which such notice, paper, document, or
legal advertisement was published was, at the time of each and
every such publication, a newspaper meeting all of the
requirements and qualifications of Section 1-597 of the
General Statutes of North Carolina and was a qualified
newspaper within the meaning of Section 1-597 of the General
Statutes of North Carolina, and that as such she makes this
affidavit; that she is familiar with the books, files and business
of said corporation and by reference to the files of said
publication the attached advertisement for NCDENR/ DWQ/
POINT SOURCE was inserted in the aforesaid newspaper
on dates as follows: 09/16l1 1
Account Number: 80763040
The above is correctly copiW from the books and tiles of the aforesaid Corporation and publication.
Debra Peebles, Accounts Receivable Specialist
Wake County, North Carolina
Sworn or affirmed to, and subscribed before me, this 19 day
of SEPTEMBER , 2011 AD, by Debra Peebles.
In Testimony Whereof, 1 have hereunto set my hand and
affixed my official seal he day and year a resold.
"I• wothy R. irtslomv, Notary Public
My commission expires June 2, 2013

NCS000462
40
jwj®
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
Facility Name:
NPDES Permit Number:
Facility Location:
Type of Activity:
SIC Code:
Receiving Streams:
River Basin:
Stream Classification:
Proposed Permit Requirements
Monitoring Data:
Response Requested by (Date):
Central Office Staff Contact:
Special Issues;
STAFF REVIEW AND EVALUATION
NPDES Stormwater Permit
Air Liquide Industrial U.S. LP
NCS000462
326 Forestville Rd, Wake Forest, NC (Wake County)
Industrial -Separates air into its principal constituents, Oxygen, Nitrogen and
Argon
2813
See Figure I
Neuse River Basin, Sub -basin 03-04-02
C; NSW
See attached draft permit.
See Table 1
Issue
Rating Scale: 1 ea - .to IU Ihard
Coin Hance history
3
Benchmark exceedance
3
Location (TMDL, T&E
species, etc
3
Other Challenges:
2
Difficulty Rating;
11/40
Description of Onsite Activities:
• The facility manufactures industrial gases.
• Air Liquide is the world leader in gases for industry, health and the environment. The Group offers
innovative solutions based on constantly enhanced technologies and produces air gases (oxygen, nitrogen,
argon, rare gases...) and many other gases including hydrogen. From www.airliguide.com/
Documents Reviewed:
} Page 1 of 7

NCS000462 is
• NPDFS Stormwater Permit Application Materials
• National Heritage Program (NHP) Threatened and Endangered Species Database
• SPU File
• Central Files
• I:PA Sector -Specific Permit, 2008
• 2010 303(d) List
• 2009 Neuse 13asinwide Plan
History:
• June 16, 2006: Date permit re -issued. Analytical monitoring was included for TSS, semi-annually.
• December 22, 2010: Date pennittee submitted renewal application.
Page 2 of 7

NCS000462
Figure 1: Map or Facility
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. 130
NCS000462
Air Liquide Industrial U S LP
Wake Forest ASU
Latitude: 350 57' 13" N
Vi,
L"We: 780 3 V 2" W
I
CoLnty: Wake
ti
Recei-ving Stream: Smith Creek
Stream 0 ass: C; NSW
A* Scale 1:24,0DO
Sub -basin: 03-04-02 (Neise River Basin)
Fa cil i ty Loca tion
Page 3 of 7

NCS000462 i
•
Central Office Review Summary:
1. Owner's Other Permits: W10500015 (expired) — Injection Heating/Cooling Water Return Well (5A7)
2. General Observations: The potential exposures for stormwater pollutants at the oils involved with the various
compressors and in storage.
3. Impairment: Smith Creek is on the 2010 303(d) list and impaired for ecological/biological integrity and
F ishCom.
Basinwide Plan states Smith Creek [AU# 27-23-(2); C; NSW] from the Wake Forest Reservoir to Neuse
River (5.8 miles) is Impaired for aquatic life based on a Fair fish community bioclassification. Smith Creek is
surrounded by a mixture of land use cover including forest, residential and industrial and the headwaters for this
creek include the rapidly developing towns of Wake Forest and Rolesville. The riparian zone is wide, shaded
and forested with some bank erosion and the stream substrate is almost all sand. No ambient monitoring
standards were violated at station JA9. Conductivity at this site was elevated with readings ranging from 72 to
255 gtmhoslcm. Smith Creek is supporting for recreational uses.
There are now two minor NPDES dischargers within five miles upstream of the biological assessment site:
Whippoorwill Valley WWTP and G.G. Hill WTP. Jones Dairy Farm WWTP permit was recinded in October
2005. They had several limit violations in the last few years of operation (BOD, TSS, and nitrogen). These could
have had an effect on the biological community in this area.
4. Threatened and Endangered: Based on the Natural Heritage virtual workroom there are no federally protected
species with 2 miles of the site. However, the Four -toed Salamander (Hemidactylium scutatum) has a State
Protection Status of SC (Special Concern).
5. Location: C; NSW
6. Industrial Chan es Since Previous Permit: No changes
7. Analytical Monitoring Notes: The pervious analytical monitoring only included TSS. The results from the
results sent by with the application were all under the current benchmark. TSS was added to the previous permit
because a value of 146 mgll was submitted with application.
The 2008 EPA Multi -Sector General Permit recommends monitoring for Total Aluminum, Total Iron, and
Nitrate plus Nitrite Nitrogen for Subsector C2. Industrial Inorganic Chemicals. The reviewer does not
recommend monitoring for these parameters because none of them are potential pollutants for this site.
Based on all of the TSS being below the current benchmark the reviewer recommends removing TSS from the
analytical monitoring. The reviewer considered adding Oil and grease to the monitor because it could be a
potential pollutant but the qualitative monitoring; indicates there have been no oil sheens. Therefore since
qualitative monitor will still be required and will check for oil sheens, Oil and grease was not added to the
analytical monitoring.
8. Qualitative Monitoring Notes: The qualitative monitoring; results were completed but not documented prior to
September 2009. A compliance inspection was done in September 2009 which caused the facility to modify
their sampling process arid implementation. The results show little to no signs of stormwater pollutants. Oil is a
potential pollutant onsite and all the observations indicated there were no oil sheens.
Page 4 of 7

W43110I1Zm
Table 1: Analytical Monitoring
Requires!
Sampling
Range
Sample
Date
Total
Flow
(MGD)
Precipitation
(in)
Duration
(hours)
TSS
Benchmark:
100 mglL
Outfall 1
Sep-10
6.7
May-10
2
Nov-09
52.4
May-09
39.2
Nov-08
6.1
Apr-08
6.4
Oct-07
4.8
Jul-07
39.4
Oct-06
3
Over Current Benchmark
Data Not Collected
Page 5 of 7
0

NCS000462 0
Revised Permit Recommendations: Analytical Monitoring:
l . Removing parameter, TSS, from the analytical monitoring.
2. All analytical monitoring has been set to semi-annually during a representative storm event as defined in Part II
Section B. The permittee must also document the total precipitation for each event. If no discharge occurs
during the sampling period, the permittee must submit a monitoring report indicating "No Flow" within 30 days
of the end of the six-month sampling period. Additionally, samples must be taken a minimum of 60 days apart,
as specified in Table 2.
3. Benchmarks for analytical monitoring have been added to this draft permit. Exceedances of benchmark values
require the permittee to increase monitoring, increase management actions, increase record keeping, and/or
install stormwater Best Management Practices (BMPs) in a tiered program. If the sampling results are above a
benchmark value, or outside of the benchmark range, for any parameter at any outfall then the facility shall
follow the Tier 1 guidelines which require a facility inspection within two weeks and implementation of a
mitigation plan within two months. If during the term of this pennit, the sampling results are above the
benchmark values, or outside of the benchmark range, for any specific parameter at a specific discharge outfall
two times in a row (consecutive), then the facility shall follow the Tier 2 guidelines which require a repetition of
the steps listed for Tier 1 and also immediately institute monthly monitoring for all parameters at every outfall
where a sampling result exceeded the benchmark value for two consecutive samples.
4. The permittee is required to collect all of the analytical and qualitative monitoring samples during representative
storm events as defined in Part II Section B. Qualitative monitoring is required regardless of representative
outfall status.
5. The permittee is responsible for all monitoring until the renewal permit is issued. See Footnote 1 of Tables 1, 4,
and 5.
6. The flow reporting requirement has been removed per DWQ revised strategy. (The total rainfall parameter is in
this permit, however.)
7. Vehicle maintenance monitoring has been revised to semi-annually in order to coincide with analytical and
qualitative monitoring.
Permittee Contact: Brett Phillips, [phone]
Page 6 of 7

NCS000462 • •
Recommendations: Based on the documents reviewed, the application information submitted on Decembcr 22,
20 , 0 sufficient to issue an Individual Stormwater Permit.
Prepared by (Signature) X-:— C. ZC�KDate ktw—q
Stormwatcr Permitting Unit Supervisor / er&
Date 3 -2011
for Bradley Bennett
Concurrence by Regional Offi
RO Water Quality Supervisor
Date a of
r
Date .
Regional Office Staff Comments (attach additional pages as necessary)
.- 6k, � -"T7 VA�
C k, S �� -- ff , #
kA W-k, -, T J/1
-
Pale 7 of 7

NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr, Damian Vickerman
Air Liquide Industrial U.S. 1,11
2700 Post Oak Blvd
Houston, NC 77056
Dear Mr. Vickerman:
Division of Water Quality
Coleen H. Sullins
Director
November 10, 2011
Subject Final NPDIS Stormwater Permit
Permit No. NCS000462
Wake Forest ASU
Wake County
Dee Freeman
Secretary
In response to your renewal application for continued coverage under NPDI?S stormwater permit NCS000462,
the Division of Water Quality (Division) is forwarding herewith the subject state - NI'DES 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 an(] the U.S. Environmental Protection Agency dated October 15, 2007 (or as
subsequently amended).
This final permit includes no major changes from the draft permit sent to you on September 13, 2011.
The qualitative monitoring strategy remains the same (semi-annual) as the previous term of the permit. Please
note that no analytical monitoring is also required in this permit unless there is vehicle maintenance on the site.
Failure to complete the monitoring as required is a violation of the permitand any permit noncompliance
constitutes a violation of the Clean Water Act. Reference Part III, Section A, Item 2 "Duty to Comply", Item 9
"Penalties for Tampering" and Item 10 "Penalties for Falsification of Reports" of your permit for further
information.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to
you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt
of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings, Post Office Drawer 27447,
Raleigh, North Carolina 27611 -7447. Unless such demand is made, this decision shall be final and binding.
Per the requirements of the Neuse Riparian Buffer Rule, all stormwater drainage from portions of this site that
have been constructed after July 22, 1997 must be discharged through a correctly designed level spreader or
another device that meets diffuse flow requirements per 15A NCAC 23.0233. Diffuse flow requirements are
described in Chapter 8 of the North Carolina Stormwater BMP Manual, available at:
http://portal.ncdenr.org/web/wq/ws/su/bmp-iiianual-
Please take notice this permit is not transferable. Part III, B.2. addresses the requirements to be followed in case
of change in ownership or control of this discharge. 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
Wetlands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location; 512 N. Salisbury St Raleigh, North Carolina 27604
Phone: [phone] FAX [phone]Customer Service', 1-877.623.6748
Internet: www,ncwaterquality.org
One
NorthCarolina
;Vatundyr

Air L.iquide Industrial U.S. LP
Permit No. NCS000462
Land Resources, Coastal Area Management Act or any other Federal or Local governmental permit that may be
req u i red.
If you have any questions or comments concerning this permit, contact Brian Lowther at [phone] or at
brian.lowther ©ncdenr.gov.
Sincerely, o
for Coleen H. Sullins, Director
cc: Raleigh Regional Office, Water Quality Section
Wake County
Mike Mitchell, EPA Region IV
Stormwater Permitting Unit
Central Files
Attachments
2

NC S000462
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMI-NT AND NATURAL RESOURCES
DIVISION OF
WATER QUALITY
PERMIT
TO DISCHARGE S"I'OIZMWA"I'1 R UNDER THF-
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions 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,
Air Liquide Industrial U S LP
is hereby authorized to discharge stormwater from a facility located at
Wake forest ASU
326 Forestville Rd
Wake Forest, NC
Wake County
to receiving waters designated as Smith Creek, a class C; NSW stream in the Neuse River Basin,
in accordance with the discharge limitations, monitoring requirements, and other conditions set
forth in Parts I, II, II1, IV, V and VI hereof.
This permit shall become effective December 1, 2011
This permit and the authorization to discharge shall expire at midnight on November 30, 2016.
Signed this day November 10, 2011.
for Coleen 1-1. Sullins Director
Division of Water Quality
By the Authority of the Environmental Management Commission

Permit No, NCS000462
TABLE OF CONTENTS
PART I INTRODUCTION
Section A: Individual Permit Coverage
Section B: Permitted Activities
Section C: Location Map
PART II MONITORING, CONTROLS, AND LIMITATIONS FOR PERMITTED
DISCHARGES
Section A: Stormwater Pollution Prevention Plan
Section B: Qualitative Monitoring Requirements
Section C: On -Site Vehicle Maintenance Monitoring Requirements
PART III STANDARD CONDITIONS FOR NPDES STORMWATER INDIVIDUAL
PERMITS
Section A: Compliance and Liability
1. Compliance Schedule
2. Duty to Comply
3. Duty to Mitigate
4. Civil and Criminal Liability
5. Oil and Hazardous Substance Liability
6. Property Rights
7. Severability
& Duty to Provide Information
9. Penalties for Tampering
10. Penalties for Falsification of Reports
Section B: General Conditions
1. Individual Permit Expiration
2. Transfers
3. Signatory Requirements
4. Individual Permit Modification, Revocation and Reissuance, or
Termination

Permit No. NCS000462
5. Permit Actions
Section C: Operation and Maintenance of Pollution Controls
] . Proper Operation and Maintenance
2. Need to Halt or Reduce Not a Defense
3. Bypassing of Stormwater Control Facilities
Section D: Monitoring and Records
I.
Representative Sampling
2.
Recording Results
3,
Flow Measurements
4.
'Pest Procedures
5.
Representative Outfall
6.
Records Retention
7.
Inspection and Entry
Section E: Reporting Requirements
1.
Discharge Monitoring Reports
2.
Submitting Reports
3.
Availability of Reports
4.
Non-Stormwater Discharges
5.
Planned Changes
6.
Anticipated Noncompliance
7.
Spills
&
Bypass
9.
Twenty -Four I -lour Reporting
10.
Other Noncompliance
] l .
Other Information
PART IV LIMITATIONS REOPENER
PART V ADMINISTERING AND COMPLIANCE MONITORING FIFE
REQUIREMENTS
PART VI DEFINITIONS

Permit No. NCS000462
PART I INTRODUCTION
SECTION A: INDIVIDUAL PERMIT COVERAGE
During the period beginning on the effective date of the permit and lasting until expiration, the
permittee is authorized to discharge stormwater associated with industrial activity. Such
discharges shall be controlled, limited and monitored as specified in this permit.
If industrial materials and activities are not exposed to precipitation or runoff as described in 40
CFR §122.26(g), the facility may qualify for a No Exposure Exclusion from NI'DES stormwater
discharge permit requirements. Any owner or operator wishing to obtain a No Exposure
Certification must submit a No Exposure Certification NOI form to the Division; must receive
approval by the Division; must maintain no exposure conditions unless authorized to discharge
under a valid NPDES stormwater permit; and must reapply for the No Exposure Exclusion once
every five (5) years.
SECTION B: PERMITTED ACTIVITIES
Until this permit expires or is modified or revoked, the permittee is authorized to discharge
stormwater to the surface waters of North Carolina or separate storm sewer system that has been
adequately treated and managed in accordance with the terms and conditions of this individual
permit. All stormwater discharges shall be in accordance with the conditions of this permit.
Any other point source discharge to surface waters of the state is prohibited unless it is an
allowable non-stormwater discharge or is covered by another permit. authorization, or approval.
The stormwater discharges allowed by this individual permit shall not cause or contribute to
violations of Water Quality Standards.
This permit does not relieve the permittee from responsibility for compliance with any other
applicable federal, state, or local law, rule, standard, ordinance, order, judgment, or decree.
Part I Page I of 2

SECTION C: LOCATION MAP
Permit No. NCS 00462
NCS0OO462
A19p Scale 1.•24,OX
Air Liquide Industrial U S LP
Wake Forest ASU
Latitude: 350 57' 13" N
Longihide: 78° 31' 2" W
County: Wake
Receiving Stream: SM th Creek
Stream C1 ass: C; NSW
Sub-basn: OM4-02 (Neuse River Basin)
Y�..d►:[:irr�Y y
�.w�ir 11±�r j7Al1�M �, f
Facility Location
Part I Page 2 of 2

Permit No. NCS000462
PART II MONITORING, CONTROLS, AND LIMITATIONS FOR
PERMITTED DISCHARGES
SECTION A: STORMWATER POLLUTION PREVENTION PLAN
The Permittee shall develop a Stormwater Pollution Prevention Plan, herein after referred to as
the Plan. This Plan shall be considered public information in accordance with Part III, Standard
Conditions, Section E, Paragraph 3 of this individual permit. The Plan shall include, at a
minimum, the following items:
Site Plan. The site plan shall provide a description of the physical facility and the
potential pollutant sources which may be expected to contribute to contamination of
stormwater discharges. The site plan shall contain the following:
(a) A general location map (USGS quadrangle map or appropriately drafted
equivalent map), showing the facility's location in relation to transportation routes
and surtace 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 discharge. The general location
map (or alternatively the site snap) shall identify whether each receiving water is
impaired (on the state's 303(d) list of impaired waters) or is located in a
watershed for which a TMDL has been established, and what the parameter(s)
of concern are.
(b) A narrative description of storage practices, loading and unloading activities,
outdoor process areas, dust or particulate generating or control processes, and
waste disposal practices. A narrative description of the potential pollutants which
could be expected to be present in the stormwater discharge from each outfall.
(c) A site map drawn to scale (including a distance legend) showing: 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, all drainage features and structures, drainage areas for each outfall,
direction of flow in each drainage area, industrial activities occurring in each
drainage area, buildings, existing BMPs, and impervious surfaces. The site map
must indicate the percentage of each drainage area that is impervious.
(d) A list of significant spills or leaks of pollutants that have occurred at the facility
during the three (3) previous years and any corrective actions taken to mitigate
spill impacts.
(e) Certification that the stormwater outfalls have been evaluated for the presence of
non-stormwater discharges. The certification statement will be signed in
Part I [ Pagel of I 0

Permit No. NCS000462
accordance with the requirements found in Part III, Standard Conditions, Section
B, Paragraph 3. The permittee shall re -certify annually that the stormwater
outfalls have been evaluated for the presence of non-stormwater discharges.
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 to stormwater, including structural and
nonstructural measures. The stormwater management plan, at a minimum, shall
incorporate the following:
(a) Feasibility Study. A review of the technical and economic feasibility of changing
the methods of operations and/or storage practices to eliminate or reduce exposure
of materials and processes to stormwater. Wherever practical, the permittee shall
prevent exposure of all storage areas, material handling operations, and
manufacturing or fueling operations. In areas where elimination of' exposure is
not practical, the stormwater management plan shall document the 1i asibility of
diverting the stormwater runoff away from areas of potential contamination.
(b) Secondary Containment Requirements and Records. Secondary containment is
required for: bulk storage of liquid materials; storage in any amount of Section
313 of "I'itle III of the Superfund Amendments and Reauthorization Act (SARA)
water priority chemicals; and storage in any amount of hazardous substances, in
order to prevent leaks and spills from contaminating stormwater runoff. A table
or summary of all such tanks and stored materials and their associated secondary
containment areas shall be maintained. If the secondary containment devices are
connected to stormwater c6nveyance systems, the connection shall be controlled
by manually activated valves or other similar devices (which shall be secured
closed 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 1bund to be
uncontaminated by any material. 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.
(c) BMP Summary. A listing of site structural and non-structural Best Management
Practices (BMP) shall be provided. The installation and implementation of�BMPs
shall be based on the assessment of the potential for sources to contribute
significant quantities of pollutants to stormwater discharges and data collected
through monitoring of stormwater discharges. The BMP Summary shall include a
written record of the specific rationale for installation and implementation of the
selected site BM111s. The BMP Summary shall be reviewed and updated annually.
3. Spill Prevention and Response Plan. The Spill Prevention and Response Plan (SPRP)
shall incorporate an assessment of potential pollutant sources based on a materials
inventory of the facility. Facility personnel (or the team) responsible for implementing
Part I I Page 2 of 10

Pen»it No. NCS000462
the SPRP shall be identified in a written list incorporated into the SPRP and signed and
dated by each individual acknowledging their responsibilities for the plan. 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. The SPRP must be site stormwater specific. "Therefore, an oil Spill
Prevention Control and Countermeasure plan (SPCC) may be a component of the SPRP,
but may not be sufficient to completely address the stormwater aspects of the SPRP. The
common elements of the SPCC with the SPRP may be incorporated by reference into the
SPRP.
4. Preventative Maintenance and Good Housekeeping Program. A preventative
maintenance and good housekeeping program shall be developed. The program shall list
all stormwater control systems, 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 structures, and existing structural BMPs. The
program shall establish schedules of 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 pollution.
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 in writing and maintained
in the SPPP.
5. Employee Training. Training programs shall be developed and training provided at a
minimum on an annual basis for facility personnel with responsibilities for: spill response
and cleanup, preventative maintenance activities, and for any of the facility's operations
that have the potential to contaminate stormwater runoff. 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.
6. Responsible Party. The Stormwater Pollution Prevention Plan shall identify a specific
position(s) responsible for the overall coordination, development, implementation, and
revision to the Plan. Responsibilities for all components of the Plan shall be documented
and position assignments provided.
7. Plan Amendment. The permittee shall amend the Plan whenever there is a change in
design, construction, operation, or maintenance which has a significant effect on the
potential for the discharge of pollutants to surface graters. All aspects of the
Stormwater Pollution Prevention Plan shall be reviewed and updated on an annual
basis. The annual update shall include an updated list of�significant spills or leaks of
pollutants for the previous three years, or the notation that no spills have occurred. The
annual update shall include written re -certification that the stormwater outfalls have been
evaluated for the presence of non-stormwater discharges. Each annual update shall
include a documented re-evaluation of the effectiveness of the BMPs listed in the BMP
Summary of the Stormwater Management Plan.
Part I I Page 3 of 10

Permit No. NCS000462
The Director may notify the permittee when the Plan does not meet one or more of the
minimum requirements of the permit. Within 30 days of such notice, the permittee shall
submit a time schedule to the Director for modifying the Plan to meet minimum
requirements. The permittee shall provide certification in writing (in accordance with
Part Ili, Standard Conditions, Section B, Paragraph 3) to the Director that the changes
have been made.
8. Facility Inspections. Inspections of the facility and all stormwater systems shall occur as
part of the Preventative Maintenance and Good Housekeeping Program at a minimum on
a semi-annual schedule, once during the first half of the year (January to June), and once
during the second half (July to December), with at least 60 days separating inspection
dates (unless performed more frequently than semi-annually). These facility inspections
are different from, and in addition to, the stormwater discharge characteristic monitoring
required in Part II B and C of this permit.
9. Implementation. The permittee shall implement the Plan. Implementation of the Plan
shall include documentation of all monitoring, measurements, inspections, maintenance
activities, and training provided to employees. including the log of the sampling data and
of actions 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.
PariII Page 4 ol' 10

Permit No. NCS000462
SECTION B: QUALITATIVE MONITORING REQUIREMENTS
Qualitative monitoring requires a visual inspection of each stormwater outfall regardless of
representative outfall status and shall be performed as specified in Table 1, during the analytical
monitoring event. Qualitative monitoring is for the purpose of evaluating the effectiveness of the
Stormwater Pollution Prevention Plan (SPPP) and assessing new sources of stormwater pollution.
In the event an atypical condition is noted at a stormwater discharge outfall, the permittee shall
document the suspected cause of the condition and any actions taken in response to the
discovery. This documentation will be maintained with the SPPP.
Table 1. Qualitative Monitoring Requirements
Discharge'JAaracteristics
:Friquentyll
Monitoring
Color
semi-annual
SDO
Odor
semi-annual
SDO
Clarity
semi-annual
SDO
Floating Solids
semi-annual
SDO
Suspended Solids
semi-annual
SDO
Foam
semi-annual
SDO
Oil Shecn
semi-annual
SDO
Erosion or deposition at the outfall
semi-annual
SDO
Other obvious indicators
of stormwater pollution
semi-annual
SDO
Footnotes:
I Measurement Frequency: Twice per year during a representative storm event, for each year until either another
permit is issued for this facility or until this permit is revoked or rescinded. if at the end of this permitting cycle
the permittee has submitted the appropriate paperwork for a renewal permit before the submittal deadline, the
permittee will be considered for a renewal application. The applicant must continue semi-annual monitoring
until the renewed permit is issued. See Table 2 for schedule of monitoring periods through the end of this
permitting cycle.
2 Monitoring Location: Qualitative monitoring shall be performed at each stormwater discharge outfall (SDO)
regardless of representative outfall status.
SECTION D: ON -SITE VEHICLE MAINTENANCE MONITORING REQUIREMENTS
Facilities which have any vehicle maintenance activity occurring on -site which uses more than
55 gallons of new motor oil per month when averaged over the calendar year shall perform
analytical monitoring as specified below in Table 2. This monitoring shall be performed at all
Part 11 Page 5 o1.10

Permit No. NCS000462
stormwater discharge outfalIS which discharge stormwater runoff from vehicle maintenance
areas, and in accordance with the schedule presented in Table 3. All analytical monitoring shall
be performed during a representative storm event.
A representative storm event is a storm event that measures greater than 0. l inches of rainfall. The time
between this storm event and the previous storm event measuring greater than 0.1 inches must be at least
72 hours. A single storm event may have a period of no precipitation of up to 10 hours. For example, if'
it rains but stops before producing any collectable discharge, a sample may be collected if the next rain
producing a discharge begins within 10 hours.
Table 2. Analytical Monitoring Requirements for On -Site Vehicle Maintenance
Discharge Characteristics
Units
Measurement
Sample
Sample
=
Fre uenc t
TypC2
Location3
I -I
standard
semi-annual
Grab
SDO
Non -Polar Oil & Grease / TPH
mg/L
semi-annual
Grab
SDO
IPA Method 1664 (SGT-HEM)
Total Suspended Solids
m j/L
semi-annual
Grab
SDO
"Total Rainfall4
inches
semi-annual
Rain gauge
New Motor Oil Usage
I gallons/month 1
semi-annual
E-stimate
-
Footnotes:
I Measurement Frequency: Twice per year during a representative storm event, for each year until either another
permit is issued for this facility or until this permit is revoked or rescinded. If at the end of this permitting cycle
the permittee has submitted the appropriate paperwork for a renewal permit before the submittal deadline, the
permittee will be considered for a renewal application. The applicant must continue semi-annual monitoring
until the renewed permit is issued. See Table 2 for schedule of monitoring periods through the end of this
permitting cycle.
2 If the stormwater runoff is controlled by a stormwater detention pond a grab sample of the discharge from the
pond shall be collected within the first 30 minutes of discharge from the pond.
Sample Location: Samples shall be collected at each stortmvater discharge outfall (SDO) that discharges
stormwater runoff from area(s) where vehicle maintenance activities occur.
4 For each sampled representative storm event the total precipitation must be recorded. An on -site or local rain
gauge reading must be recorded.
Part 11 Page 6 of 10

Permit No. NCS000462
Table 2. Monitoring Schedule
Monitoring periodl'2
Sample Number
Start .
End
Year l — Period 1
I
December 1, 2011
May 31, 2012
Year l — Period 2
2
June 1, 2012
November 30, 2012
Year 2 — Period 1
3
December I, 2012
May 31, 2013
Year 2 — Period 2
4
June 1, 2013
November 30, 2013
Year 3 — Period 1
5
December 1, 2013
May 31, 2014
Year 3 — Period 2
6
June 1, 2014
November 30, 2014
Year 4 — Period 1
7
December 1, 2014
May 31, 2015
Year 4 — Period 2
S June 1, 2015
November 30, 2015
Year 5 —Period 1
9
December 1, 2015
May 31, 2016
Year 5 — Period 2
10
June 1, 2016
November 30, 2016
Footnotes:
I Maintain semi-annual monitoring during permit renewal process. If at the expiration of the Individual
Permit, the permittee has submitted an application for renewal of coverage before the submittal deadline,
the permittee will be considered for renewed coverage. The applicant must continue semi-annual
monitoring until the renewed permit is issued.
2 if no discharge occurs during the sampling period, the permittee must submit a monitoring report indicating
"No Flow" within 30 days of the end of the six-month sampling period.
The permittee shall report the analytical results from each sample within the monitoring period. The
permittee shall compare monitoring results to the benchmark values in Table 3. The benchmark
values in Table 3 are not permit limits but should be used as guidelines for the permittee's
Stormwater Pollution Prevention Plan (SPPP). Exceedences of benchmark values require the
permittee to increase monitoring, increase management actions, increase record keeping, and/or
install stormwater Best Management Practices (BMPs) in a tiered program. See below the
descriptions of Tier One and Tier Two.
Table 3. Benchmark Values for Vehicle Maintenance Analytical Monitoring
Discharge Characteristics
Units
Benchmark
PH
standard
6-9
Non -Polar Oil & Grease / TPH
[EPA Method 1664 (SGT-HEM)]
m gli_
15
Total Suspended Solids
rng/L
100
Part I I Page 7 of 10

Permit No. NCS000462
Tier One !,+
If: The first valid sampling results are above a benchmark value, or outside of the benchmark range, for any
rameter at anv outfal
Then: The permittee shall:
1. Conduct a stormwater management inspection of the facility within two weeks of receiving
sampling results.
2. Identify and evaluate possible causes of the benchmark value exceedence.
3. Identify potential and select the specific: source controls, operational controls, or physical
improvements to reduce concentrations of the parameters of concern, or to bring concentrations
within the benchmark range.
4. Implement the selected actions within two months of the inspection.
5. Record each instance of a 'bier One response in the Stormwater Pollution Prevention Plan. Include
the date and value of the benchmark exceedence, the inspection date, the personnel conducting the
inspection, the selected actions, and the date the selected actions were implemented.
Tier'Two
If: During the tern of this permit, the first valid sampling results from two consecutive monitoring periods are
above the benchmark values, or outside of the benchmark range, for any specific parameter at a specific
discharge outfall;
Then: The permittee shall:
Repeat al I the required actions outlined above in 'Pier One.
2. Immediately institute monthly monitoring for all parameters at every outfall where a sampling result
exceeded the benchmark value for two consecutive samples. Monthly (analytical and qualitative)
monitoring shall continue until three consecutive sample results are below the benchmark values or
within the benchmark range.
3. If no discharge occurs during the sampling period, the permittee is required to submit a monthly
monitoring report indicating "No Flow" to comply with reporting requirements.
4. Maintain a record of the 'I'ier'I'wo response in the Stormwater Pollution Prevention Plan.
During the term of this permit, if the valid sampling results required for the permit monitoring periods exceed
the benchmark value, or are outside the benchmark range, for any specific parameter at any specific outt�nll on
four occasions, the permittee shall notify the DWQ Regional Office Supervisor in writing within 30 days of
receipt of the fourth analytical results. DWQ may but is not limited to:
• require that the permittee revise, increase, or decrease the monitoring frequency for the remainder
of the permit;
• require the permittee to install structural stormwater controls;
• require the permittee to implement other stormwater control measures; or
• require that the permittee implement site modifications to qualify for the No Exposure Exclusion,
Part 11 Page 8 of 10

Permit No. NCS000462
PART III STANDARD CONDITIONS FOR NPDESSTORMWATER INDIVIDUAL PERMITS
SECTION A: COMPLIANCE AND LIABILITV
Compliance Schedule
The permittee shall comply with Limitations and Controls specified for stormwater discharges in
accordance with the following schedule:
Existing Facilities already operating but applying for permit coverage for the first time; The Stormwater
Pollution Prevention Plan shall be developed and implemented within 12 months of the effective date of the
initial permit and updated thereafter on an annual basis. Secondary containment, as specified in Part 11,
Section A, Paragraph 2(b) ol'this permit, shall be accomplished within 12 months of the effective date of
the initial permit issuance.
New Facilities applying for coverage for the first time and existing facilities previously permitted and
applying for renewal under this permit: The Stormwater Pollution Prevention Plan shall be developed and
implemented prior to the beginning of discharges from the operation of the industrial activity and be
updated thereafter on an annual basis. Secondary containment, as specified in Part 11, Section A, Paragraph
2(b) of this permit shall be accomplished prior to the beginning of discharges from the operation of the
industrial activity.
Duty to Comply
The permittee must comply with all conditions of this individual permit. Any permit noncompliance
constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit
termination, revocation and reissuance, or modification; or denial of a permit upon renewal application.
The permittee shall comply with standards or prohibitions established under section 307(a) of the
Clean Water Act for toxic pollutants within the time provided in the regulations that establish
these standards or prohibitions, even if the permit has not yet been modified to incorporate the
requirement.
b. "fhe Clean Water Act provides that any person who violates a permit condition is subject to a civil
penalty not to exceed S25,000 per day for each violation. Any person who negligently violates any
permit condition is subject to criminal penalties of$2.500 to 25,000 per day of violation, or
imprisonment for not more than 1 year, or both. Any person who knowingly violates permit
conditions is subject to criminal penalties of $5,000 to $50,000 per day of violation, or
imprisonment for not more than 3 years, or both. Also, any person who violates a permit
condition may be assessed an administrative penalty not to exceed $10,000 per violation with the
maximum amount not to exceed $125,000. [Ref: Section 309 of the Federal Act 33 USC 1319 and
40 CFR 122.41(a).]
Under state law, a daily civil penalty of not more than ten thousand dollars ($10,000) per violation
may be assessed against any person who violates or fails to act in accordance with the terms,
conditions, or requirements of a permit. [Ref: NC General Statutes 143-215.6A 1.
d. Any person may be assessed an administrative penalty by the Director for violating section 301,
302, 306, 307, 308, 318 or 405 of the Act, or any permit condition or limitation implementing any
of such sections in a permit issued under section 402 of the Act. Administrative penalties for Class
I violations are not to exceed $10,000 per violation, with the maximum amount of any Class I
penalty assessed not to exceed $25,000. Penalties for Class I I violations are not to exceed
Part 1 1 1 Page 1 of 8

Permit No. N'CS000462
$10,000 per day for each day during which the violation continues, with the maximum amount of
any Class II penalty not to exceed S125.000.
Duty to Mitigate
The permittee shall take all reasonable steps to minimize or prevent any discharge in violation ofthis
individual permit which has a reasonable likelihood of adversely affecting human health or the
environment.
4, Civil and Criminal Liability
Except as provided in Part III, Section C of this permit regarding bypassing of stormwater control Iltcilities,
nothing in this individual permit shall be construed to relieve the permittee from any responsibilities,
liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6A, 143-215.613, 143-
215.6C or Section 309 of the Federal Act, 33 USC I319. Furthermore, the permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for etTective compliance may be
temporarily suspended.
5. Oil and Hazardous Substance Liability
Nothing in this individual permit shall be construed to preclude the institution of any legal action or relieve
the permittee from any responsibilities, liabilities, or penalties to which the permittee is or may be subject
to under NCGS 143-215.75 et seq. or Section 311 of the Federal Act, 33 USC 1321.
6. Property, Rights
The issuance of this individual permit does not convey any property rights in either real or personal
properly, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of
personal rights, nor any infringement of Federal, State or local laws or regulations.
7. Severability
The provisions of this individual permit are severable, and if any provision of this individual permit, or the
application of any provision ofthis individual permit to any circumstances, is held invalid, the application
of such provision to other circumstances, and the remainder of this individual permit, shall not be affected
thereby.
8. Duty to Provide Information
The permittee shall furnish to the Director, within a reasonable time, any information which the Director
may request to determine whether cause exists for modifying, revoking and reissuing, or terminating the
permit issued pursuant to this individual permit or to determine compliance with this individual permit.
The permittee shall also furnish to the Director upon request, copies of records required to be kept by this
individual permit.
9. Penalties for Tampering
The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders
inaccurate, any monitoring device or method required to be maintained under this individual permit shall,
upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment 1orr not
more than two years per violation, or by both. If a conviction of a person is for a violation committed after
a first conviction of such person under this paragraph, punishment is a fine of not more that $20,000 per
day of violation, or by imprisonment of not more than 4 years, or both.
P,trt III Page 2 of 8

Permit No. NCS000462
10. Penalties for Falsification of Reports
The Clean Water Act provides that any person who knowingly makes any false statement, representation,
or certification in any record or other document submitted or required to be maintained under this
individual permit, including monitoring reports or reports of compliance or noncompliance shall, upon
conviction, be punished by a tine of not more than $10,000 per violation, or by imprisonment for not more
than two years per violation, or by both.
SECTION B: GENERAL CONDITIONS
I. Individual Permit Expiration
The permittee is not authorized to discharge after the expiration date. In order to receive automatic
authorization to discharge beyond the expiration date, the permittee shall submit forms and fees as are
required by the agency authorized to issue permits no later than 180 days prior to the expiration date. Any
permittee that has not requested renewal at least 180 days prior to expiration, or any permittee that does not
have a permit after the expiration and has not requested renewal at least 180 days prior to expiration, will
be subjected to enforcement procedures as provided in NCGS 5143-215.36 and 33 USC 1251 et. seq.
2. Transfers
This permit is not transferable to any person except after notice to and approval by the Director. The
Director may require modification or revocation and reissuance of the permit to change the name and
incorporate such other requirements as may be necessary under the Clean Water Act. The Permittee is
required to notify the Division in writing in the event the permitted facility is sold or closed.
3. Signatory Requirements
All applications, reports, or information submitted to the Director shall be signed and certified.
a. All applications to be covered under this individual permit shall be signed as follows:
(1) In the case of a corporation: by a principal executive officer of at least the level of vice-
president, or his duty authorized representative, if such representative is responsible for
the overall operation of the facility from which the discharge described in the permit
application form originates;
(2) In the case of a partnership or limited partnership: by a general partner;
(3) In the case of a sole proprietorship: by the proprietor,
(4) In the case of a municipal, state, or other public entity: by a principal executive officer,
ranking elected official, or other duly authorized employee.
b. All reports required by the individual permit and other information requested by the Director shall
be signed by a person described above or by a duly authorized representative ofthat person. A
person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the
overall operation of the regulated facility or activity, such as the position of plant
Part Hf Page 3 of 8

Permit No. NCS000462
manager, operator of a well or well field, superintendent, a position of equivalent
responsibility, or an individual or position having overall responsibility for environmental
matters for the company. (A duly authorized representative may thus be either a named
individual or any individual occupying a named position.), and
(3) The written authorization is submitted to the Director.
Any person signing a document under paragraphs a. or b. of this section shall make the following
certification:
"I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. i am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
4. Individual Permit Modification, Revocation and Reissuance, or Termination
The issuance of this individual permit does not prohibit the Director from reopening and modifying the
individual permit, revoking and reissuing the individual permit, or terminating the individual permit as
allowed by the laws, rules, and regulations contained in Title 40, Code of Federal Regulations, Parts 122
and 123, Title 15A of the North Carolina Administrative Code, Subchapter 21-1 .0100, and North Carolina
General Statute 143-215.1 et al.
5. Permit Actions
The permit may be modified, revoked and reissued, or terminated for cause. The notification ol'planned
changes or anticipated noncompliance does not stay any individual permit condition.
SECTION C: OPERATION AND MAINTENANCE OF POLLUTION CONTROLS
I. Proper Operation and Maintenance
The permittee shall at all times properly operate and maintain all facilities and systems of treatment and
control (and related appurtenances) which are installed or used by the permittee to achieve compliance with
the conditions of this individual permit. Proper operation and maintenance also includes adequate
laboratory controls and appropriate quality assurance procedures. This provision requires the operation of
back-up or auxiliary facilities or similar systems which are installed by a permittee only when the operation
is necessary to achieve compliance with the conditions of this individual permit.
2. Need to Halt or Reduce Not a Defense
It shall not be a defense for a permittee in an enforcement action that it would have been necessary to halt
or reduce the permitted activity in order to maintain compliance with the condition ofthis individual
permit.
3. Bypassing; of Stormwater Control Facilities
Bypass is prohibited and the Director may take enforcement action against a permittee for bypass unless:
a. Bypass was unavoidable to prevent loss of life, personal injury or severe property damage: and
Part III Page 4 of 8

Permit No. NCS000462
There were no feasible alternatives to the bypass, such as the use of auxiliary control facilities,
retention of stormwater or maintenance during normal periods of equipment downtime or dry
weather. This condition is not satisfied if adequate backup controls should have been installed in
the exercise of reasonable engineering judgment to prevent a bypass which occurred during
normal periods of equipment downtime or preventive maintenance; and
c. The permittee submitted notices as required under, Part 111, Section E of this permit.
If the Director determines that it will meet the three conditions listed above, the Director may approve an
anticipated bypass after considering its adverse effects.
SECTION D: MONITORING AND RECORDS
1. Re resentative Sam lin
Samples collected and measurements taken, as required herein, shall be characteristic of the volume and
nature of the permitted discharge. Analytical sampling shall be performed during a representative storm
event. Samples shall be taken on a day and time that is characteristic of the discharge. All samples shall be
taken before the discharge joins or is diluted by any other waste stream, body of water, or substance.
Monitoring points as specified in this permit shall not be changed without notification to and approval of
the Director.
Recording Results
For each measurement, sample, inspection or maintenance activity performed or collected pursuant to the
requirements of this individual permit, the permittee shall record the following information:
a. The date, exact place, and time of sampling, measurements, inspection or maintenance activity;
b. The individual(s) who performed the sampling, measurements, inspection or maintenance activity;
c. The dates) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
Flow Measurements
Where required, appropriate flow measurement devices and methods consistent with accepted scientific
practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of
monitored discharges.
Test Procedures
Test procedures for the analysis of pollutants shall conform to the EMC regulations published pursuant to
NCGS 143-215.63 et. seq, the Water and Air Quality Reporting Acts, and to regulations published pursuant
to Section 304(g), 33 USC 13 W, of the Federal Water Pollution Control Act, as Amended, and Regulation
40 CFR 136.
Part III Page 5 of 8

Permit No. NCS000462
To meet the intent of the monitoring required by this individual permit, all test procedures must produce
minimum detection and reporting levels and all data generated must be reported down to the minimum
detection or lower reporting level of the procedure.
Representative Outfall
If a facility has multiple discharge locations with substantially identical stormwater disch€trges that are
required to be sampled, the permittee may petition the Director for representative outfall status, Ifit is
established that the stormwater discharges are substantially identical and the permittee is granted
representative outfall status, then sampling requirements may be performed at a reduced number of outfalls.
6. Records Retention
Visual monitoring shall be documented and records maintained at the facility along with the Stormwater
Pollution Prevention Plan. Copies of analytical monitoring results shall also be maintained on -site. The
permittee shall retain records of all monitoring information, including all calibration and maintenance
records and all original strip chart recordings for continuous monitoring instrumentation, and copies of all
reports required by this individual permit for a period of at least 5 years from the date of the sample,
measurement, report or application. This period may be extended by request of the Director at any time.
7. Inspection and Entry
'['he permittee shall allow the Director, or an authorized representative (including an authorized contractor
acting as a representative of the Director), or in the case of facility which discharges through a municipal
separate storm sewer system, an authorized representative of a municipal operator or the separate storm
sewer system receiving the discharge, upon the presentation of credentials and other documents as may be
required by law, to;
a. linter upon the permittee's premises where a regulated facility or activity is located or conducted,
or where records must be kept under the conditions of this individual permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions
of this individual permit;
C. Inspect at reasonable times any facilities, equipment (including monitoring and control
equipment), practices, or operations regulated or required under this individual pertnit-, and
d. Sample or monitor at reasonable times, for the purposes of assuring individual permit compliance
or as otherwise authorized by the Clean Water Act, any substances or parameters at any location.
SECTION E. REPORTING REQUIREMENTS
Discharge Monitoring Reports
Samples analyzed in accordance with the terms of this permit shall be submitted to the Division on
Discharge Monitoring Report forms provided by the Director. Submittals shall be delivered to the Division
no later than 30 days from the date the facility receives the sampling results from the laboratory.
The permittee shall submit an Annual Summary Data Monitoring Report to the appropriate DWQ Regional
Office in February of each year. The submittal shall be on forms supplied by the Division.
Part [II Page 6 of

Permit No. NCS000462
When no discharge has occurred from the facility during the report period, the permittee is required to
submit a discharge monitoring report, within 30 days of the end of the six-month sampling period, giving
all required information and indicating "NO FLOW" as per NCAC T 15A 02B .0506.
The permittee shall record the required qualitative monitoring observations on the SDO Qualitative
Monitoring Report form provided by the Division, and shall retain the, completed forms on site. Visual
monitoring results should not be submitted to the Division, except upon DWQ's specific requirement to do
SO.
Submitting Reports
Two signed copies of Discharge Monitoring Reports (DMRs) shall be submitted to:
Central Files
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
In addition, a separate signed Annual Summary DMR copy shall be submitted to the local DWQ Regional
Office (RO) by March I of each year.
Addresses for each RO and the counties covered by each RO can be found here:
http:Nportal.ncdenr.org/web/wq/home/ro. The permittee shall retain the completed originals on site
Visual monitoring results should not be submitted to the Regional Offices or Central Files unless
specifically requested by DWQ.
Availabilitv of Reoorts
Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308 of the Federal
Act, 33 USC 1318. all reports prepared in accordance with the terms shall be available for public inspection
at the offices of the Division of Water Quality. As required by the Act, analytical data shall not be
considered confidential. Knowingly making any false statement on any such report may result in the
imposition of criminal penalties as provided for in NCGS 143-215.613 or in Section 309 of the Federal Act.
4. Non-Stormwater Discharges
If the storm event monitored in accordance with this Individual Permit coincides with a non-stormwater
discharge, the permittee shall separately monitor all parameters as required under the non-stormwater
discharge permit and provide this information with the stormwater discharge monitoring report.
Planned Chan es
The permittee shall give notice to the Director as soon as possible of any planned changes at the permitted
facility which could significantly alter the nature or quantity of pollutants discharged. This notification
requirement includes pollutants which are not specifically listed in the Individual Permit or subject to
notification requirements under 40 CFR Part 122.42 (a).
6. Anticipated Noncompliance
The permittee shall give notice to the Director as soon as possible of any planned changes at the permitted
facility which may result in noncompliance with the Individual Permit requirements.
Par( 111 Page 7 of 8

Permit No. NCS000462
Snit
The permittee shall report to the local DWQ Regional Office, within 24 hours, all significant spills as
defined in Part V1 of this permit. Additionally, the permittee shall report spills including: any oil spill ol'2.5
gallons or more, any spill regardless of amount that causes a sheen on surtace waters, any oil spill
regardless of amount occurring within 100 feet of surface waters, and any oil spill less than 25 gallons that
cannot be cleaned up within 24 hours.
Bypass
Anticipated bypass. If the permittee knows in advance of the need for a bypass, it shall submit
prior notice, if possible at least ten days before the date of the bypass; including an evaluation of
the anticipated quality and affect of the bypass.
Unanticipated bypass. The permittee shall submit notice within 24 hours of becoming aware of an
unanticipated bypass.
9. Twenty -Four Flour Reporting
The permittee shall report to the central office or the appropriate regional office any noncompliance which
may endanger health or the environment. Any information shall be provided orally within 24 hours from
the time the permittee became aware of the circumstances. A written submission shall also be provided
within 5 days of the time the permittee becomes aware of the circumstances.
The written submission shall contain a description of the noncompliance, and its causes; the period of
noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the
anticipated time compliance is expected to continue; and steps taken or planned to reduce, eliminate, and
prevent reoccurrence of the. noncompliance.
The Director may waive the written report on a case -by -case basis if the oral report has been received
within 24 hours.
10. Other Noncompliance
The permittee shall report all instances of noncompliance not reported under 24 hour reporting at the time
monitoring reports are submitted.
11. Other Information
Where the permittee becomes aware that it failed to submit any relevant facts in a Notice of Intent to be
covered under this Individual Permit or in any report to the Director, it shall promptly submit such facts or
information.
Part III Page 8 of 8

NCS000462
PART IV LIMITATIONS REOPENER
This individual permit shall be modified or alternatively, revoked and reissued, to comply with any applicable
effluent guideline or water quality standard issued or approved under provisions ofthe Clean Water Act, if the
effluent guideline or water quality standard so issued or approved:
Contains different conditions or is otherwise more stringent than any effluent limitation in the individual
permit; or
b. Controls any pollutant not limited in the individual permit.
The individual permit as modified or reissued under this paragraph shall also contain any other requirements in the
Act then applicable.
PART V ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS
The permittee must pay the administering and compliance monitoring fee within 30 (thirty) days alter being billed
by the Division. Failure to pay the fee in timely manner in accordance with 15A NCAC 2I4 .0105(b)(4) may cause
this Division to initiate action to revoke the Individual Permit,
PART VI DEFINITIONS
Act
See Clean Water ,Act.
Allowable Non-_Stormwater Discharges
This permit regulates stormwater discharges. Non-stormwater discharges which shall be allowed in the
stormwater conveyance system are:
(a) All other discharges that are authorized by a non-stormwater NPD(S permit.
(b) Uncontaminated groundwater, foundation drains, air -conditioner condensate without added
chemicals, springs, discharges of uncontaminated potable water, waterline and tire. hydrant
flushings, water from footing drains, flows from riparian habitats and wetlands.
(C Discharges resulting from fire -fighting or fire -fighting training.
Hest Management Practices (BMPs)
Measures or practices used to reduce the amount of pollution entering surface waters. BM Ps may take the
form of a process, activity, or physical structure. More information on BMPs can be found at:
hup://cfpub.epa.gov/npdes/stormwater/menuofbmps/index.cfm.
Bypass
A bypass is the known diversion of stormwater from any portion of a stormwater control facility including
the collection system, which is not a designed or established operating mode for the facility.
Bulk Storaue of Liauid Products
Liquid raw materials, manufactured products, waste materials or by-products with a single above ground
storage container having a capacity of greater than 660 gallons or with multiple above ground storage
containers located in close proximity to each other having a total combined storage capacity of greater than
1,320 gallons.
Parts IV, V and VI Page 1 of 4

Permit No. NCS000462
6. Certificate of Coverage
The Certificate of Coverage (COC) is the cover sheet which accompanies the Individual Permit upon
issuance and lists the facility name, location, receiving stream, river basin, effective date of coverage under
the permit and is signed by the Director.
7. Clean Water Act
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33 IJSC
1251, et. seq.
8. Division or DWO
The Division of Water Quality, Department of Environment and Natural Resources.
9. Director
The Director of the Division of Water Quality, the permit issuing authority.
10. EMC
The North Carolina Environmental Management Commission.
11, Grab Sample
le
An individual sample collected instantaneously. Grab samples that will be analyzed (quantitatively or
qualitatively) must be taken within the first 30 minutes of discharge.
12. Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 31l of the Clean Water Act.
13, Landfill
A disposal facility or part ol'a disposal facility where waste is placed in or on land and which is not a land
treatment facility, a surface impoundment, an injection well, a hazardous waste long-term storage lacility or
a surface storage facility.
14, Municipal Separate Storm Sewer System
A stormwater collection system within an incorporated area of local self-government such as a city or town.
15, No Exposure
A condition of no exposure means that all industrial materials and activities are protected by it storm
resistant shelter or acceptable storage containers to prevent exposure to rain, snow, snowmelt, or runoff.
Industrial materials or activities include, but are not limited to, material handling equipment or activities,
industrial machinery, raw materials, intermediate products, by-products, final products, or waste products.
DWQ may grant a No Exposure Exclusion from NPDES Stormwater Permitting requirements only if a
facility complies with the terms and conditions described in 40 CFR 5122.26(g)
16. Notice of Intent
The state application form which, when submitted to the Division, officially indicates the facility's notice of
intent to seek coverage under an Individual Permit.
17, Permittee
The owner or operator issued a certificate of coverage pursuant to this Individual Permit.
PartV 1 Page 2 of 4 Pages

Permit No. NCS000462
18. Point Source Discharge of Stormwater
Any discernible, confined and discrete conveyance including, but not specifically limited to, any pipe,
ditch, channel, tunnel, conduit, well, or discrete fissure from which stormwater is or may be discharged to
waters of the state.
19, Representative Storm Event
A storm event that measures greater than 0.1 inches of rainfall. The time between this storm event and the previous
storm event measuring greater than 0.1 inches must be at least 72 hours. A single storm event may have a period of
no precipitation of up to 10 hours. For example, if it rains but stops before producing any collectable discharge, a
sample may be collected if the next rain producing a discharge begins within 10 hours.
20. Representative Qutfall Status
When it is established that the discharge of stormwater runoff from a single outfall is representative of the
discharges at multiple outfalls, the DWQ may grant representative outfall status. Representative outfall
status allows the permittee to perform analytical monitoring at a reduced number of outfalls.
21. Secondary Containment
Spill containment for the contents of the single largest tank within the containment structure plus sufficient
freeboard to allow for the 25-year, 24-hour storm event.
22. Section 313 Water Priority Chemical
A chemical or chemical category which:
a. Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III ofthe Superfund Amendments and
Reauthorization Act (SARA) of 1986, also titled the Emergency Planning and Community Right -
to -Know Act of 1986;
b. Is present at or above threshold levels at a facility subject to SARA title I[1, Section 313 reporting
requirements. and
C. Meets at least one of the following criteria:
( I) Is listed in appendix D of 40 CFR part 122 on Table I I (organic priority pollutants), 'fable
11[ (certain metals, cyanides, and phenols) or Table IV (certain toxic pollutants and
hazardous substances);
(2) Is listed as a hazardous substance pursuant to section 31 1(b)(2)(A) of the CWA at 40
CFR 1 16.4, or
(3) Is a pollutant for which EPA has published acute or chronic water quality criteria.
23. Severe Property Damage
Means substantial physical damage to property, damage to the control facilities which causes them to
become inoperable, or substantial and permanent loss ofnatural resources which can reasonably be
expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused
by delays in production.
24. Significant Materials
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 11] of SARA; fertilizers; pesticides; and waste products such as
ashes, slag and sludge that have the potential to be released with stormwater discharges.
25. Significant Spills
Includes, but is not limited to: releases of oil or hazardous substances in excess of reportable quantities
under section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and CFR 1 17.21) or section 102 of
CERCLA (Ref: 40 CFR 302.4).
Part V [ Page 3 of 4 Pages

Permit No. NCS000462
26. Stormwater Discharge Outfall (SDO)
The point of departure of Stormwater from a discernible, confined, or discrete conveyance, including but
not limited to, storm sewer pipes, drainage ditches, channels, spillways, or channelized collection areas,
from which stormwater flows directly or indirectly into waters of the State of North Carolina.
27. Stormwater Runoff
The flow of water which results from precipitation and which occurs immediately following rainfall or as a
result of snowmelt.
28. Stormwater Associated with Industrial Activit
The discharge from any point source which is used for collecting and conveying stormwater and which is
directly related to manufacturing, processing or raw material storage areas at an industrial site. Facilities
considered to be engaged in "industrial activities" include those activities defined in 40 CFR 122.26(b)(14).
The term does not include discharges from facilities or activities excluded from the NPDES program.
29. Stormwater Pollution Prevention Plan
A comprehensive site -specific plan which details measures and practices to reduce stormwater pollution
and is based on an evaluation of the pollution potential of the site.
30. Total Maximum Dailv Load (TMDL)
TMDLs are written plans for attaining and maintaining water quality standards, in all seasons, for a specific
water body and pollutant. (A list of approved TMDLs for the state of North Carolina can be found at
http://h2o.eur.state.ne.us/tmdl/)
31. Toxic Pollutant
Any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act.
32. Vehicle Maintenance Activity
Vehicle rehabilitation, mechanical repairs, painting, fueling, lubrication, vehicle cleaning operations, or
airport deicing operations.
33. Visible Sedimentation
Solid particulate matter, both mineral and organic, that has been or is being transported by water, air,
gravity, or ice from its site of origin which can be seen with the unaided eye.
34, 25-Year, 24 hour storm event
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the average, once in 25
years.
Part V I Page 4 of 4 Pages

AIR LIQUIDE
CORPORATE HEALTH, SAFETY & ENVIRONMENT
December 20, 2010
Mr. Brian Lowther
North Carolina Department of Environment and Natural Resources
Stornwater Permitting Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
w n'
Re: NPDES Stormwater Permit Coverage Renewal
Wake Forest ASU - Air Liquide Industrial US LP _cm I
326 Forestville Road, Wake Forest, NC a
Permit Number: NCS000462j
Wake County
Dear Mr. Lowther,
Air Liquide Industrial U.S. LP (Air Liquide) would like to submit two copies of the
renewal application package for the referenced facility, permit number NCS000462. The
following is the sulriniary of supplemental information required as part of this renewal
application.
Supplemental Information Sunintarl�
Site Plaw A current Site Plan from the Stormwater Pollution Prevention Plan (SWPPP)
is attached showing the location of the outfalls and drainage arcas. The Site Plan also
shows the location of industrial activities including storage of materials, process areas
and loading and unloading areas, drainage structures, drainage areas for each outfall and
building locations.
SuInInar); of Analyitical Monitoriniz Results: The analytical monitoring has been
conducted, documented and are within the required limitations of the permit. The
AIR LIQUIDE USA LLC • 2700 Post Oak Blvd., Ste 1800, Houston,TX 77056
Phone: [phone] • Fax: [phone]

Mr. Brian Lowther
Page 2 of 2
12/20/2010
analytical monitoring results for Total Suspended Solids (TSS) during the term of the
current permit are summarized in the Table 1. No exceedances of TSS monitoring were
detected.
Summary of Visual Monilorin,g Results: The qualitative monitoring results were
completed but not documented prior to September 2009. In September 2009, following a
Compliance Evaluation Inspection by the North Carolina Department of Environment
and Natural Resources (NCDENR) Division of Water Quality, the facility modified the
sampling process and implemented a program for the qualitative (visual) monitoring.
Since September 2009, the facility has conducted the required Qualitative Monitoring.
The visual monitoring results are summarized in Table 2.
Best_ Management Practices LBA4Ps2: Attached is a summary from the SWPPP of BMPs
utilized at the facility.
Sicnunaa, of Changes: To summarize, there have been no changes in industrial activities
such as the material handling practices, the storage of materials; process areas and/or the
loading and unloading areas have occurred at the facility.
Should you have any questions or comments regarding this renewal application and
supplemental information, please feel free to contact me at [phone]. Thank you
for your attention.
Very Truly Yours,
Air Liquide USA LLC
t
Damian Vickerman
Environmental Representative
Enclosures

c.5()dC)L�6_�_
Permit Coverage
Renewal Appllcation_Form
National Pollutant Discharge Elimination System Permit Number
Stormwater Discharge'Permit
The following is the information currently In our database for your facility. Please review this Information carefully and
make all correctionsladditions as necessary In the space provided to the rightof the current information.
Owner AtfillatianAnformation *Reissued Permit ralll 6e ntalled to the owner address
owner / Organization Name: Air Llqulde Industrial U S LP
owner Contact:
-Pase81-V1net7
Mailing Address:
2700 Post Oak Blvd
Ste 1600
Houston. TX 77056
Phone Number:fi24-9�$6—
Fax Number:
E-mail address;
FacilitvlPermlt Contactinformaslon
Facility Name:
Wake Forest ASU
Facility Physical Address:
326 Forestville Rd
Wake Forest, NC 27587
Facility Contact:
Brett Ph1111fs
Mailing Address:
Phone Number: [phone]
Fax Number-
E-mail address:
010 orm@tion
7t
Receiving Stream: Smith Creek
Stream Class: 27-23-(2)
Basin: Neuse River Basin
Sub -Basin; 03.04.02
Number of Oulfalls: 17
Impaired WaterslTINID
Does this facility discharge to waters listed as Impalred or waters with a finallzed'rMDL7 0 Yes O No U Don't Know
( for Informatlon on these Patters referto hftpy/h?.o.enrstate.nc.us/st►/lrtrpolred Waters TMDU 7
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 -_ .J A- _ Date f Zl, 7 //0
Print or type name of person signing above Title
Please return this completed renewal application form to- Stormwater Permitting Unit
Attn: Brian Lowther l
1617 Mail Service Center
Raleigh, North Carolina 27699-1617

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
y 1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading; and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
2. A summary of Analytical Monitoring results during the term of the existing pen -nit
(if your permit required analytical sampling). Do n()t submit individual lab reports.
The summary can consist of a table including such items as outfall number,
f parameters sampled, lab results, date sampled, and stone event data. H
r U 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 pennitted 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 Stonnwater 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)

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REVISfONS
PRO -SECT LOCATION PR0.IECT DESCRiPT1GN:
AS UOt1DE rnus, AL U.S. LP
326 FORES'TVLLE ROAD SITE PLAN
WAKE FOREST, NC 27587
W R LD
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APPROVED BY: o, LOPEZ
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DATE: 12-15-10
SCALE:
NOT TO SCALE

TABLE
Outfall #1 Analytical Monitoring Results for
TSS
Date
Results (mg/L)
Sep-10
6.7
May-10
2
Nov-09
52.4
May-09
39.2
Nov-08
6.1
Apr-08
6.4
Oct-07
4.8
Jul-07
39.4
Oct-0&
3

TABLE 2
Outfall #1 Visual Monitoring Results
Date
Observations
Light tan color with light
tint
No odor
Okay clarity
10/14/2009
Little floating solids
No suspended solids
No foam
No oil sheen
Very light tan color
No odor
Good clarity
Little floating solids
511812010
No suspended solids
No foam
No oil sheen
Clear color
No odor
Great clarity
No floating solids
9/30/2010
No suspended solids
No foam
No oil sheen

Schedule 9
Air Liquide Industrial U.S. LP
Wake Forest, North Carolina
BMP Identification
(Form will be prepared in accordance with Section B.3 of the SWPP Plan.)
BMPs
Description of Activities
Good Housekeeping
Train staff in basic cleanup procedures; encourage proper material storage techniques.
Preventative Maintenance
Quarterly inspection of all structures, storage tanks, catch basins, and equipment.
Spill Prevention and Response
Provide spill response kits and restock as necessary, as specified in the facility SPCC plan.
Provide secondary containment in accordance with SPCC Plan
Visual Inspections
Quarterly inspections of all storage tanks; quarterly preventative maintenance inspections; annual comprehensive site
inspections.
Loading[Unloading and Transfer
Procedures
Follow procedures in facility's SPCC plan.
Sediment and Erosion Control
Provide storm sewer inlet protection as necessary.
Note: Additional BMPs related to the storage of oils are discussed within the facility's SPCC Plan.
Revised December 2010
32

S"inniary of Changes
At the Wake Forest facility, there have been no changes in industrial activities such as the
material handling practices, the storage of materials, process areas and/or the loading and
unloading areas at the facility since the issuance of the original permit in ,tune 2006.

rE"QL-TJTION. RCV>L"lyNT:IQN:P'L_�AN";-�'`�`
`• V. I PMENT- E�,(yDJMP.L
sr�
North Carolina Dlvlslon of Water Quallty - Stormwater P.ermftling-Urilt.
Facility Nome: Wake Forest ASU
Permit Number: NCS000462
Location Address, 326 Forestville Rd
Wake Forest, NC 27587
County, Wake
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPIT) 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 pf the person or persons who manage the system, or otiose persons directly responsible
for gathering the Information, the Information gathered Is, to the best of my knowledge and belief, tfue,
accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the 5PPP
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 lines and
Imprisonment for knowing vlolations."
Sig;(nccoi'tliasgtoPenns( slguntotyroqullgnieirts}:nidreturn 'DO.NOT.:: ;.
SEND STORMWATER I'OLLUTIONTREVRN;I'ION j-LAN,NYITH THIS,CERTIV? gAAVON.,
1
Signature A Date _ I- // 7( f 0
`fie -tar GE -VP • PXlfgA -Y �nUcroiJ
Print or type name of Berson slyning above Title
SPIT Certification 5109

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Colleen H. Sullins
Governor Director
November 2, 2010
Pascal Vinet
Air Liquide Industrial U S LP
2700 Post Oak Blvd
Ste 1800
Houston, TX 77056
Subject: NPDES Stormwater Permit Coverage Renewal
Air Liquide Industrial U S LP
Permit Number NCS000462
Wake County
Dear Permittee:
Dee Freeman
Secretary
Your facility is currently covered for stormwater discharge under NPDES Permit NCS000462- This
permit expired on June 30, 2011. To assure consideration for continued coverage under your
individual permit, you must apply to the Division of Water Quality (DWQ) for renewal of your permit.
Enclosed you will find an individual permit Renewal Application Form, Supplemental Information
request, and Stormwater Pollution Prevention Plan Certification for your facility.
Filing the application form along with the requested supplemental information will constitute your
application for renewal of this permit. Until your permit renewal is completed and you. receive a new
permit, please continue to comply with all conditions and monitoring requirements in your expired
NPDES stormwater permit.
The application and supplement must be completed and returned to DWQ by anus i 1. 2011 Failure
to request renewal within this time period will result in delay of your permit renewal and may result in
a civil assessment. Discharge of stormwater from your facility without coverage under a valid
stormwater NPDES permit would constitute a violation of NCGS 143-215.1 and could result in.
assessments of civil penalties of up to $25,000 per day.
If you have any questions regarding permit renewal procedures please contact Brian Lowther of the
Stormwater Permitting Unit at (919)-807-6368 or [e-mail].
Sincerely,
Bradley Bennett, Supervisor
Stormwater Permitting Unit
Cc: Central Files
SPU Files
Raleigh Regional Office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N, Salisbury St. Raleigh, North Carolina 27604
Phone: 91MG7-63001 FAX: [phone] Customer Service: 1-877.623-6748
Internet: www nmaterquality.org
NorthCarolina
An Equal Opportunity 1 Affirmative Action Employer

osW"TtR Permit Coverage
``°P Renewal Application Form
Qq., National Pollutant Discharge Elimination System Permit Number
Stormwater Discharge Permit
iCS000258
The following is the information currently in our database for your facility. Please review this information carefully and
make all corrections/additions as necessary in the space provided to the right of the current information.
Owner Affiliation Information *Reissued Permit will be mailed to the owner address
Owner / Organization Name
Owner Contact:
Mailing Address:
Phone Number:
Fax Number:
E-mail address:
Air Liquide Industrial U S LP
Pascal Vinet
2700 Post Oak Blvd
Ste 1800
Houston, TX 77056
[phone]
FacilitvlPermit Contact Information
Facility Name: Wake Forest ASU
Facility Physical Address: 326 Forestville Rd
Wake Forest, NC 27587
Facility Contact: Brett Phillips
Mailing Address:
Phone Number:
Fax Number:
E-mail address:
Discharae Information
Receiving Stream:
Stream Class:
Basin:
Sub -Basin:
Number of Outfalls:
[phone]
Smith Creek
27-23-(2)
Neuse River Basin
03-04-02
Impaired Waters[TMDL
Does this facility discharge to waters listed as impaired or waters with a finalized TMDL.? ❑ Yes Cl No ❑ Don't Know
( for information on these waters refer to http.y/h2o.enr.state.nc us/su/lmpaired Waters TMDLI )
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
Print or type name of person signing above
Date
Title
Please return this completed renewal application form to: Stormwater Permitting Unit
Attn: Brian Lowther
1617 Mail Service Center
Raleigh, North Carolina 27699-1617

C
I
North Carolina Division of Water Quality - Storm water Permitting Unit
Facility Name: Wake Forest ASU,
Permit Number: NCS000462
Location Address: 326 Forestville Rd
Wake Forest, NC 27587
County: Wake
"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." i
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP
has been fully implemented at this !facility location in accordance with the terms and conditions of the
stormwater discharge permit."
And
"I am aware that there are significant, penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
Sign (according to Oeriiiit,'i' n tor"y requirements)'and return this, Certification DO NOT
.,SEND.STORMWATER POLLUTION PREVENTION.PLAN.,NNITH THIS�CERTIFICATION.,
Signature
Print or type name of person signing above
Date
Title
SPPP Certification 5/09

� F WAT�c�Q
_O G
7 y`
Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Y Alan W. Klimek, P.E.• Director
Division of Water Quality
June 16, 2006
Mr. Brett Phillips 1
Air Liquide Industrial U.S., LP 1
P.O. Box 1918
Wake Forest, NC 27588
Subject: Final NPDES Stormwater Permit
Permit NCS000462
Wake Forest ASU
Wake County
Dear Mr. Phillips:
In response to your renewal application for continued coverage under NPDES stormwater permit NCS000462, the
Division of Water Quality (Division) is! forwarding herewith the subject state - NPDES permit. This permit is issued
pursuant to the requirements or North Carolina General Statute 143-215 .1 and the Memorandum of Agreement
between North Carolina and the US Environmental Protection agency dated May 9, 1994 (or as subsequently
amended).
This final permit includes no major changes from the draft permit sent to you on March 1, 2006.
The qualitative monitoring strategy remains the same (semi-annual) as the previous term of the permit. Please note
that analytical monitoring is also required in this permit. Failure to complete the monitoring as required is a
violation of the permit and any permit noncompliance constitutes a violation of the Clean Water Act, Reference Part
111, Section A, Item 2 "Duty to Comply", Item 9 "Penalties for Tampering " and Item 10 "Penalties for Falsification
of Reports" of your permit for further information.
i
Ifany parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you,
you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this
letter. This request must be in the form;of a written petition, conforming to Chapter 150E of the North Carolina
General Statutes, and filed with the Office of Administrative Hearings, Post Office Drawer 27447, Raleigh, North
Carolina 27611 -7447. Unless such demand is made, this decision shall be final and binding.
Please take notice this permit is not transferable. Part III, B.2. addresses the requirements to be followed in case of
change in ownership or control of this discharge. 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.
I
a
f you have any questions or comments concerning this permit, contact Aisha Lau at [phone] x 578 or
aisha,[e-mail]. ;
Sincerely,
For Alan W. Klimek, P-E., Director
cc: Raleigh Regional Office, Water Quality Section
Mike Mitchell, EPA Region IV
Stormwater Permitting Unit
Central Files
Mr. Stephen Kim, 4 Neshaming lnterplex, suite 300, Trevose, I'A 19053
Attachments i
North Carolina Division of Water Quality [phone]
1617 Mail Service Center FAX [phone]
Raleigh, North Carolina 27699.1617 On the Internet at http;//h2o.enr.state.nc.us/

NCS000462
STATE OF NORTH CAROLINA
DEPARTMENT OFiENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT NO. NCS000462
TO DISCHARGE STORMWATER UNDER THE
i
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions 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,
Air Liquide Industrial U.S., LP
is hereby authorized to discharge stormwater from a facility located at
Wake Forest ASU
326 Forestville Road
Wake Forest
Wake County
I
i
to receiving waters designated as an unnamed tributary to Smith Creek, a class C, NSW stream,
in the NeLlse River Basin in accordance with the discharge limitations, monitoring requirements,
and other conditions set forth in a Parts I, 11, 111, IV, V and VI hereof.
t
This permit shall become effective July 1, 2006.
This permit and the authorization to discharge shall expire at midnight on June 30, 2011.
Signed this day June 16,2006.
for Alan W. Klimek, P.E., Director
Division of Water Quality
By the Authority of the Environmental Management Commission

Permit No. NCS000462
TABLE OF CONTENTS
PART I INTRODUCTION
Section A: Individual Permit Coverage
Section B: Permitted Activities
Section C: Location Map
PART II MONITORING, CONTROLS, AND LIMITATIONS FOR PERMITTED
DISCHARGES
Section A: Stormwater Pollution Prevention Plan
Section B: Analytical Monitoring Requirements
Section C: Qualitative Monitoring Requirements
Section D: On -Site Vehicle Maintenance Monitoring Requirements
PART III STANDARD CONDITIONS
Section A: Compliance
and Liability
1.
Compliance Schedule
2.
Duty to Comply
3.
Duty to Mitigate
4.
Civil and Criminal Liability
5.
Oil and Hazardous Substance Liability
6.
Property Rights
7.
Severability
8.
Duty to Provide Information
9.
Penalties for Tampering
10.
Penalties for Falsification of Reports
Section B: General Conditions
1.
Individual Permit Expiration
2.
Transfers

Permit No. NCS000462
3. Signatory Requirements
1
4. IndiviIdual Permit Modification, Revocation and Reissuance, or
Termination
5.
Permit Actions
Section C: Operation
and Maintenance of Pollution Controls
1.
Prope'r Operation and Maintenance
2.
Need to Halt or Reduce Not a Defense
i
3.
Bypassing of Stormwater Control Facilities
Section D: Monitoring and Records
1.
RepreIsentative Sampling
2.
Recording Results
3.
Flow Measurements
4.
Test Procedures
5.
Repr #sentative Outfall
6.
Records Retention
7.
Inspection and Entry
Section E: Reporting
Requirements
I.
Discharge Monitoring Reports
2.
Submtitting Reports
3.
Availability of Reports
4.
Non-Stormwater Discharges
5.
Planned Changes
6. Anticipated Noncompliance
i
7. Bypass
8. Twenty-four Hour Reporting
9. Other Noncompliance
10. Other Information
PART IV LIMITATIONS REOPENER
i
PART V ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS
t
1
PART VI DEFINITIONS

Permit No. NCS000462
PART I INTRODUCTION
SECTION A: INDIVIDUAL PERMIT COVERAGE
During the period beginning on the effective date of the permit and lasting until expiration, the
permittee is authorized to discharge stormwater associated with industrial activity. Such
discharges shall be controlled, limited and monitored as specified in this permit.
SECTION B: PERMITTED ACTIVITIES
Until this permit expires or is modified or revoked, the permittee is authorized to discharge
stormwater to the surface waters of North Carolina or separate storm sewer system which has
been adequately treated and managed in accordance with the terms and conditions of this
individual permit. All discharges shall be in accordance with the conditions of this permit.
Any other point source discharge to surface waters of the state is prohibited unless it is an
allowable non-stormwater discharge or is covered by another permit, authorization or approval.
This permit does not relieve the permittee from responsibility for compliance with any other
applicable federal, state, or local law, rule, standard, ordinance, order, judgment, or decree.
Part I Page I of 2

Permit No. NCS000462
SECTION C: LOCATION MAP
Latitude:35°57'13" NCS000462 Facility _� {' !►
Longitude: 78" 31'02" i
Quad: Wake forest (C24NE) Air Liquide industrial Location
Stream Class: C NSW U.S. —Wake Forest
Subbasin: 03-04-02 (Neuse River Basin) t North SCALE
Receiving Stream: UT to Smith Creek
Part [ Page 2 cif 2
t'

Permit No, NCS000462
PART II MONITORING, CONTROLS, AND LIMITATIONS FOR
PERMITTED DISCHARGES
SECTION A: STORMWATER POLLUTION PREVENTION PLAN
The permittee shall develop a Stormwater Pollution Prevention Plan, herein after referred to as
the Plan. This Plan shall be considered public information in accordance with Part III, Standard
Conditions, Section E, Paragraph 3 of this individual permit. The Plan shall include, at a
minimum, the following items:
1. Site Plan. The site plan shall provide a description of the physical facility and the
potential pollutant sources which may be expected to contribute to contamination of
stormwater discharges. The site plan shall contain the following:
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 discharge,
b. A narrative description of storage practices, loading and unloading activities,
outdoor process areas, dust or particulate generating or control processes, and
waste disposal practices.
A site map drawn to scale with the following items:
(1) Distance legend and north arrow
(2) Location of industrial activities (including storage of materials,
disposal areas, process areas and loading and unloading areas)
(3) Drainage structures
(4) Delineated drainage areas for each outfall
(5) Drainage area for each outfall in acres and percentage of
each drainage area that is impervious
(6) Building locations
(7) Existing BMPs and impervious surfaces
(8) For each outfall, a narrative description of the potential pollutants that
could be expected to be present in the stormwater discharge.
d. 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.
e. 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.
Part 11I Page 1 of 8 Pages

Permit No. NCS000462
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 ofisigniticant materials to stormwater, including structural and
nonstructural measures. The stormwater management plan, at a minimum, shall
incorporate the following:
a. Feasibility Study. �A review of the technical and economic feasibility of changing
the methods of operations and/or storage practices to eliminate or reduce exposure
of materials and processes to stormwater. Wherever practical, the pertnittee shall
prevent exposure of all storage areas, material handling operations, and
manufacturing or fucling operations. In areas where elimination of exposure is
not practical, the stormwater management plan shall document the feasibility of
diverting the stormwater runoff away from areas of potential contamination.
i
b. Secondary Containment Schedule. A schedule to provide secondary containment
for bulk storage of liquid materials, storage of Section 313 of Title [l[ of the
Superfund Amendments and Reauthorization Act (SARA) water priority
chemicals, or storage of hazardous substances to prevent leaks and spills from
contaminating stormwater runoff. 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 the 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 shal I be kept for a
period of five years-
C. BMP Summary. A narrative description shall be provided of Best Management
Practices (BMPs) to be considered such as, but not limited to, oil and grease
separation, debris control, vegetative filter strips, infiltration and stormwater
detention or retention, where necessary. The need for structural BMPs shall be
based on the assessment of potential of sources to contribute significant quantities
of pollutants to stormwater discharges and data collected through monitoring of
stormwater discharges.
3. Spill Prevention and Response Plan. The Spill Prevention and Response Plan (SPRP)
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. The SPRP must be site
stormwater specific. Therefore, a SPCC plan may be a component of the SPRP, but may
i .
Part I I I Page 2 of 8 Pages

Permit No. NCS000462
not be sufficient to completely address the stormwater aspects of the SPRP. The common
elements of the SPCC with the SPRP may be incorporated by reference into the SPRP.
4. Preventative Maintenance and Good Housekeeping Program. A preventative
maintenance program shall be developed. The program shall document schedules of
inspections and maintenance activities of stormwater control systems, plant equipment
and systems. inspection of material handling areas and regular cleaning schedules of
these areas shall be incorporated into the program.
5. 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 for all personnel involved in any of the facility's
operations that have the potential to contaminate stormwater runoff. Facility personnel
(or team) responsible for implementing the training shall be identified.
6. Responsible Party. The Stormwater Pollution Prevention Plan shall identify a specific
position(s) responsible for the overall coordination, development, implementation, and
revision to the Plan. Responsibilities for all components of the Plan shall be documented
and position assignments provided.
7. Plan Amendment. The permittee shall amend the Plan whenever there is a change in
design, construction, operation, or maintenance 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.
The Director may notify the permittee when the Plan does not meet one or more of the
minimum requirements of the permit. Within 30 days of such notice, the permittee shall
submit a time schedule to the Director for modifying the Plan to meet minimum
requirements. The permittee shall provide certification in writing (in accordance with
Part 111, Standard Conditions, Section B, Paragraph 3) to the Director that the changes
have been made.
S. Facility Inspection Program. Facilities are required to inspect all stormwater systems on
at least a semiannual schedule, once in the fall (September -November) and once in the
spring (April - June). The inspection and any subsequent maintenance activities
performed shall be documented, recording; date and time of inspection, individual(s)
making the inspection and a narrative description of the facility's stormwater control
systems, plant equipment and systems. Records of these inspections shall be incorporated
into the Stormwater Pollution Prevention Plan.
Stormwater discharge characteristic monitoring; as required in Part 11 of this permit shall
be performed in addition to facility inspections_
9. Implementation. The permittee shall document 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
Part II I Page 3 of 8 Pages

Permit No. NCS000462
be kept on -site for a period of five years and made available to the Director or his
authorized representativei immediately upon request.
i
SECTION 13; ANALYTICAL!MONITORING REQUIREMENTS
Duringthe period beginning on the effective date of the permit and lasting until expiration, the
P g g P� b
permittee is authorized to discharge stormwater subject to the provisions ofthis permit.
Analytical monitoring of stormwater discharges shall be performed as specified below in Table
1.
All analytical monitoring shall be performed during a representative storm event, The required
monitoring will result in a minimum of nine analytical samplings being conducted over the term
of the permit. The permittee shall complete the minimum nine analytical samplings in
accordance with the schedule specified below in Table 2.
Monitoring results shall be compared to the benchmark values in Table 3. The benchmark
values in Table 3 are not permit limits but should be used as guidelines for the permittee's
Stormwater Pollution Prevention Plan (SPPP). The permittee shall evaluate the sources of any
benchmark exceedances and evaluate the effectiveness of any site BMPs. The permittee shall
review and/or update the SPPP and document any efforts to address stormwater contamination.
Table]. Analytical Monitoring Requirements
Discharge
Characteristics
Units
Measurement Frc uenc t
Sample
Type2
Sample
Location3
Total Suspended Solids
! m L
Semi-annually
Grab
SDO
Total Rainfall
finches
Semi-annually-
-
Rainfall Event Duration
minutes
Semi-annually-
-
i
Footnotes:
I Measurement Frequency: All analytical monitoring will be performed twice per year, once in the spring (April -
June) and once in the fall (September - November). See Table 2 for schedule of monitoring periods.
2 If the stormwater runotT is controlled by a stormwater detention pond, a grab sample of the discharge from the
t
pond shall be collected within the first 30 minutes of discharge. If the detention pond discharges only in response
to a storm event exceeding aten-year design storm, then no analytical monitoring is required and only qualitative
monitoring shall be performed. f
3 Sample Location: Samples shall be collected at outfall 1.
Part I I I Page 4 of 8 Pages

Permit No. NCS0004162
Table 2. Monitoring Schedule
MonitoringPeriod
Sample Number
Year 1 — Fall
1
September 1, 2006
November 30, 2006
Year I — Spring
2
April 1, 2007
June 30, 2007
Year 2 — Fall
3
September 1, 2007
November 30, 2007
Year 2 — Spring
4
April 1, 2008
June 30, 2008
Year 3 — Fall
5
September 1, 2008
November 30, 2008
Year 3 — Spring
6
April 1, 2009
June 30, 2009
Year 4 — Fall
7
September 1, 2009
November 30, 2009
Year 4 — Spring
8
April 1, 2010
June 30, 2010
Year 5 — Fall
9
September 1. 2010
November 30, 2010
Footnote
l Maintain semi-annual monitoring during permit renewal process.
Table 3. Benchmark Values for Analytical Monitoring
Discharge_Charac�eristics.
'' :Units _ ,
s wBenchntark
Total Suspended Solids
mg/L
100
SECTION C: QUALITATIVE MONITORING REQUIREMENTS
Qualitative monitoring requires a visual inspection of each stormwater outfall regardless of
representative outfall status and shall be performed as specified below in Table 4. Qualitative
monitoring is for the purpose of evaluating the effectiveness of the Stormwater Pollution
Prevention Plan (SPPP) and assessing new sources of stormwater pollution. No analytical tests
are required. Qualitative monitoring of stormwater outfalls is performed when stormwater
discharge occurs but does not need to be performed during a representative storm event.
In the event an atypical condition is noted. at a stormwater discharge outfall, the Permittee shall
document the suspected cause of the condition and any actions taken in response to the
discovery. This documentation will be maintained with the Stormwater Pollution Prevention
Plan.
All qualitative monitoring will be performed twice per year, once in the spring (April - June) and
once in the fall (September - November).
PartI ll Page 5 of 8 Pages

Permit No. NCS000462
Table 4. Qualitative Monitoring Requirements
Discharge Characteristics
;-it
Frequency
I .
Monitoring
Location/
Color
Semi -Annually
SDO
Odor
emi-Annuaill
SDO
Clarity
Semi -Annually
SDO
Floating Solids
Semi-AnnuallySDO
Suspended Solids
i
Semi-Annuall
SDO
Foam
Semi-AnnuallySDO
Oil Sheen
Semi-AnnuallySDO
Other obvious indicators
of stormwater pollution
Semi -Annually
I SDO
Footnotes: I '
I Monitoring Location: Qualitative monitoring shall be performed at each stornnvater discharge outfall (SDO)
regardless of representative outfall status.
SECTION D: ON -SITE VEHICLE MAINTENANCE MONITORING REQUIREMENTS
Facilities which have any vehicle maintenance activity occurring on -site that uses more; than 55
gallons of new motor oil per month when averaged over the calendar year shall perform
analytical monitoring as specified below in Table 5. This monitoring shall be performed at all
outfalls that discharge stormwater runoff from vehicle maintenance areas.
All analytical monitoring shall be performed during a representative storm event. The required
monitoring will result in a minimum of nine analytical samplings being conducted over the term
of the permit at each stormwater discharge outfall (SDO) which discharges stormwater runoff
from vehicle maintenance areas.1 The permittee shall complete the minimum nine analytical
samplings in accordance with the schedule specified in Table 5 below.
i
Monitoring results shall be compared to the benchmark values in Table 6. The benchmark
values in Table 6 are not permit limits but should be used as guidelines for the permittee's
Stormwater Pollution Prevention Plan (SPPP). The permittee shall evaluate the sources of any
benchmark exceedances and evaluate the effectiveness of any site BMPs. The permittee shall
review and/or update the SPPP and document any efforts to address stormwater contamination.
I
Part I I I Page 6 of 8 Pages

Permit No. NCS000462
Table 5. Analytical Monitoring Requirements for On -Site Vehicle Maintenance
Discharge Characteristics
Y- _
- _ -
;Units ��_.
-
_ Measurement
Fre acne t
Sa rii�le
T " e2
'ES rople -
a
Location3
Total suspended Solids
m ► I
Setni-annually
Grab
SDO
Oil and Grease
m /I
Semi-annually
Grab
SDO
H
standard
Semi-annually
Grab
SDO
New Motor Oil Usage
gallons/month
Semi-annually
Estimate
-
Total Rainfall
inches
Semi-annually
Rainfall Event Duration
minutes
Semi-annually
_
_
Footnotes:
I Measurement Frequency: All analytical monitoring will be performed twice per year, once in the spring (April -
June) and once in the fall (September - November). See Table 2 for schedule of monitoring periods.
2 if the stormwater runoff is controlled by a stormwater detention pond,'a grab sample of the discharge from the
pond shall be collected within the first 30 minutes of discharge. If the detention pond discharges only in response
to a storm event exceeding a ten year design storm, then no analytical monitoring is required and only qualitative
monitoring shall be performed.
3 Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) that discharges
stormwater runoff from area(s) where vehicle maintenance activities occur.
Table 6. Benchmark Values for Analytical Monitorin- for Vehicle Maintenance
-Discharge Characteristics
., Units
; :. ; Benchmark
Total Suspended Solids
mg/L
100
Oil and Grease
mg/L
30
pI 1
standard
6-9
Par( III Page 7 of 8 Pages

i
Permit No. NCS000462
PART III STANDARD CONDITIONS FOR NPDES STORMWATER INDIVIDUAL
i PERMITS
F
SECTION A: COMPLIANCEIAND LIABILITY
1. Coninliance Schedule
The permittee shall comply with Limitations and Controls specified for stormwater
discharges in accordance with the following schedule:
i
Existing Facilities: The Stormwater Pollution Prevention Plan shall be developed and
implemented within 12 months of the effective date of the initial permit and updated
thereafter on an annual basis. Secondary containment, as specified in Part 11, Section A,
Paragraph 2(b) of this permit, shall be accomplished within 12 months of the effective
date of the initial permit issuance.
Proposed Facilities: The Stormwater Pollution Prevention Plan shall be developed and
implemented prior to thelbeginning of discharges from the operation of the industrial
activity and be updated thereafter on an annual basis. Secondary containment, as
specified in Part II, Section A, Paragraph 2(b) of this permit shall be accomplished prior
to the beginning of discharges from the operation of the industrial activity.
2. Duty to Comply
The permittee must comply with all conditions of this individual permit. Any permit
noncompliance constitutes a violation of the Clean Water Act and is grounds For
enforcement action; for permit termination, revocation and reissuance, or modification; or
denial of a permit upon renewal application.
k
a. The permittee shall comply with standards or prohibitions established under
section 307(a) of, the Clean Water Act for toxic pollutants within the time
provided in the regulations that establish these standards or prohibitions, even if
the permit has not yet been modified to incorporate the requirement.
b. The Clean Water Act provides that any person who violates a permit condition is
subject to a civil `penalty not to exceed $27,500 per day for each violation. Any
person who negligently violates any permit condition is subject to criminal
penalties of $2,500 to $25,000 per day of violation, or imprisonment for not more
than 1 year, or both. Any person who knowingly violates permit conditions is
subject to criminal penalties of $5,000 to $50,000 per day of violation, or
PartI Il Page 8 of 8 Pages

Permit No. NCS000462
imprisonment for not more than 3 years, or both. Also, any person who violates a
permit condition may be assessed an administrative penalty not to exceed $11,000
per violation with the maximum amount not to exceed $137,500. [Ref: Section
309 of the Federal Act 33 USC 1319 and 40 CFR 122.41(a).]
Under state law, a daily civil penalty of not more than twenty-five thousand
dollars ($25,000) per violation may be assessed against any person who violates
or fails to act in accordance with the terms, conditions, or requirements of a
permit. [Ref: North Carolina General Statutes 143-215.6A]
d. Any person may be assessed an administrative penalty by the Director for
violating section 301, 302, 306, 307, 308, 318, or 405 of the Act, or any permit
condition or limitation implementing any of such sections in a permit issued under
section 402 of the Act. Administrative penalties for Class I violations are not to
exceed $11,000 per violation, with the maximum amount of any Class I penalty
assessed not to exceed $27,500. Penalties for Class Il violations are not to exceed
$11,000 per day for each day during which the violation continues, with the
maximum amount of any Class It penalty not to exceed $137,500,
3. Duty to Mitigate
The permittee shall take all reasonable steps to minimize or prevent any discharge in
violation of this individual permit which has a reasonable likelihood of adversely
affecting human health or the environment.
4. Civil and Criminal Liability
Except as provided in Part III, Section C 6f this permit regarding bypassing of stormwater
control facilities, nothing in this individual permit shall be construed to relieve the .
permittee from any responsibilities, liabilities, or penalties for noncompliance pursuant to
NCGS 143-215.3,143-215.6A, 143-215.613, 143-215.6C or Section 309 of the Federal Act,
33 USC 1319. Furthermore, the permittee is responsible for consequential damages, such
as fish kills, even though the responsibility for effective compliance may be temporarily
suspended.
5. Oil_ and Hazardous Substance Liability
Nothing in this individual permit shall be construed to preclude the institution of any
legal action or relieve the permittee from any responsibilities, liabilities, or penalties to
which the permittee is or may be subject to under NCGS 143-215.75 et seq. or Section 311
of the Federal Act, 33 USC 1321.
6. Property Rights
The issuance of this individual permit does not convey any property rights in either real or
personal property, or any exclusive privileges, nor does it authorize any injury to private
Part II I Page 9 of 8 Pages

Permit No. NCS000462
I
I
I
property or any invasion of personal rights, nor any infringement of Federal, State or local
laws or regulations.
Severabi I ity
The provisions of this individual permit are severable, and if any provision of tills
individual permit, or the application of any provision of this individual permit to any
circumstances, is held invalid, the application of such provision to other circumstances,
and the remainder of this individual permit, shall not be affected thereby.
I
8. Duty to Provide Information
The permittee shall furnish to the Director, within a reasonable time, any information
which the Director may request to determine whether cause exists for modifying,
revoking and reissuing, o'r terminating the permit issued pursuant to this individual permit
or to determine compliance with this individual permit. The permittee shall also furnish
to the Director upon request, copies of records required to be kept by this individual
permit.
I
9. Penalties for Tampering
The Clean Water Act provides that any person who falsifies, tampers with, or knowingly
renders inaccurate, any monitoring device or method required to be maintained under this
individual permit shall, ulpon conviction, be punished by a fine ot'not more than $10,000
per violation, or by imprisonment for not more than two years per violation, or by both.
It'a conviction of a person is for a violation committed after a first conviction of such
person under this paragraph, punishment is a fine of not more that $20,000 per day of
violation, or by imprisonment of not more than 4 years, or both.
10. Penalties for Falsification. of Reports
The Clean Water Act provides that any person who knowingly makes any false statement,
representation, or certification in any record or other document submitted or required to
be maintained under thisiindividual permit, including monitoring reports or reports of
compliance or noncompliance shall, upon conviction, be punished by a fine of not more
than $10,000 per violation, or by imprisonment for not more than two years per violation,
or by both. 1
I
SECTION B: GENERAL CONDITIONS
}
i
1. Individual Permit Expiration
The permittee is not authorized to discharge after the expiration date. In order to receive
automatic authorization to discharge beyond the expiration date, the permittee shall
submit forms and fees as are required by the agency authorized to issue permits no later
than 180 days prior to the expiration date. Any permittee that has not requested renewal
i
Part I I I Page 10 of 8 Pages

Permit No. NCS000462
at least 180 days prior to expiration, or any permittee that does not have a permit after the
expiration and has not requested renewal at least 180 days prior to expiration, will be
subjected to enforcement procedures as provided in NCGS §143-2153.6 and 33 USC
1251 et. seq.
2. Transfers
This permit is not transferable to any person except after notice to and approval by the
Director. The Director may require modification or revocation and reissuance of the
permit to change the name and incorporate such other requirements as may be necessary
under the Clean Water Act. Permittee is required to notify the Division in writing in the
event the permitted facility is sold or closed.
3. Signatory Requirements
All applications, reports, or information submitted to the Director shall be signed and
certified.
a. All applications to be covered under this individual permit shall be signed as
follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of
this Section, a responsible corporate officer means: (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.
(2) For a partnership or sole proprietorship: by a general partner or the
proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a
principal executive officer or ranking elected official.
b. All reports required by the individual permit and other information requested by
the Director shall be signed by a person described above or by a duly authorized
representative of that person. A person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having
responsibility for the overall operation of the regulated facility or activity,
such as the position of plant manager, operator of a well or well field,
Part I I I Page 11 of 8 Pages

Permit No. NCS000462
superintendent, a position of equivalent responsibility, or an individual or
position having overall responsibility for environmental matters for the
company. (A duly authorized representative may thus be either a named
individual or any individual occupying a named position.); and
1
(3) The written authorization is submitted to the Director.
C. Any person signirig a document under paragraphs a. or b. of this section shall
make the following certification:
i
"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."
4. Individual Permit Modification, Revocation and Reissuance, or Termination
The issuance of this individual permit does not prohibit the Director from reopening and
modifying the individual permit, revoking and reissuing the individual permit, or
terminating the individual permit as allowed by the laws, rules, and regulations contained
in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North
Carolina Administrative Code, Subchapter 21-1 .0100; and North Carolina General Statute
143-215.1 et. al. I
5. Permit Actions
i
The permit may be modified, revoked and reissued, or terminated for cause. The
notification of planned changes or anticipated noncompliance does not stay any
individual permit condition.
SECTION C: OPERATION AND MAINTENANCE OF POLLUTION CONTROLS
t
l
1. ProperOperation and Maintenance
The permittee shall at all, times properly operate and maintain all facilities and systems of
treatment and control (and related appurtenances) which are installed or used by the
permittee to achieve compliance with the conditions of this individual permit. Proper
operation and maintenance also includes adequate laboratory controls and appropriate
quality assurance procedures. This provision requires the operation of back-up or
auxiliary facilities or similar systems which are installed by a permittee only when the
Part I I Page 12 of 8 Pages

Permit No. NCS000462
operation is necessary to achieve compliance with the conditions of this individual
permit.
2. Need to Halt or Reduce Not a Defense
It shall not be a defense for a permittee in an enforcement action that it would have been
necessary to halt or reduce the permitted activity in order to maintain compliance with
the condition of this individual permit.
3. Bypassing of Stormwater Control Facilities
Bypass is prohibited and the Director may take enforcement action against a permittee for
bypass unless:
a. Bypass was unavoidable to prevent loss of life, personal injury or severe property
'damage; and
b. There were no feasible alternatives to the bypass, such as the use of auxiliary
control facilities, retention of stormwater or maintenance during normal periods of
equipment downtime or dry weather. This condition is not satisfied if adequate
backup controls should have been installed in the exercise of reasonable
engineering judgment to prevent a bypass which occurred during normal periods
of equipment downtime or preventive maintenance; and
The perrittee submitted notices as required under, Part III; Section E of this
permit -
If the Director determines that it will meet the three conditions listed above, the Director
may approve an anticipated bypass after considering its adverse effects.
SECTION D: MONITORING AND RECORDS
Representative Sampling
Samples collected and measurements taken, as required herein, shall be characteristic of
the volume and nature of the permitted discharge. Analytical sampling shall be
performed during a representative storm event. Samples shall be taken on a day and time
that is characteristic of the discharge. All samples shall be taken before the discharge
joins or is diluted by any other waste stream, body of water, or substance. Monitoring
points as specified in this permit shall not be changed without notification to and
approval of the Director.
Part I II Page 13 of 8 Pages

Permit No, NCS000462
2. Recording Results
For each measurement, sample, inspection or maintenance activity performed or collected
pursuant to the requirements of this individual permit, the permittee shall record the
following information:
a. The date, exact place, and time of sampling; measurements, inspection or
maintenance activ} ty;
b. The individual(s) �vho performed the sampling, measurements, inspection or
maintenance activity;
C. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
I
f. The results of such analyses.
i
3. Flow Measurements
Where required, appropriate flow measurement devices and methods consistent with
accepted scientific practices shall be selected and used to ensure the accuracy and
reliability of measurements of the volume of monitored discharges.
4. Test Procedures
1
Test procedures for the analysis of pollutants shall conform to the GMC regulations
published pursuant to NCGS 143-215.63 et. seq, the Water and Air Quality Reporting
Acts, and to regulations published pursuant to Section 304(g), 33 USC 1314, of the
Federal Water Pollution Control Act, as Amended, and Regulation 40 CFR 136.
To meet the intent of the'' monitoring required by this individual permit, all test procedures
must produce minimum detection and reporting levels and all data generated must be
reported down to the minimum detection or lower reporting level of the procedure.
5. Representative Outfall
If a facility has multiple discharge locations with substantially identical stormwater
discharges that are required to be sampled, the permittee may petition the Director for
representative outfall status. Wit is established that the stormwater discharges are
substantially identical and the permittee is granted representative outfall Status, then
sampling requirements may be performed at a reduced number ofoutfalls.
Part II I Page 14 of 8 Pages

Permit No. NCS000462
6. Records Retention
Visual monitoring shall be documented and records maintained at the facility along with
the Stormwater Pollution Prevention Plan. Copies of analytical monitoring results shall
also be maintained on -site. The permittee shall retain records of all monitoring
information, including all calibration and maintenance records and all original strip chart
recordings for continuous monitoring instrumentation, and copies of all reports required
by this individual permit for a period of at least 5 years from the date of the sample,
measurement, report or application. This period may be extended by request of the
Director at any time.
7. Inspection and Entry
The permittee shall allow the Director, or an authorized representative (including an
authorized contractor acting as a representative of the Director), or in the case of a facility
which discharges through a municipal separate storm sewer system, an authorized
representative of a municipal operator or the separate storm sewer system receiving the
discharge, upon the presentation of credentials and other documents as may be required
by law, to;
a. Enter upon the permittee's premises where a regulated facility or activity is located
or conducted, or where records must be kept under the conditions of this
individual permit;
b. Have access to and copy, at reasonable times, any records that must be kept under
the conditions of this individual permit;
Inspect at reasonable times any facilities, equipment (including monitoring and
control equipment), practices, or operations regulated or required under this
individual permit; and
d. Sample or monitor at reasonable tines, for the purposes of assuring individual
permit compliance or as otherwise -authorized by the Clean Water Act, any
substances or parameters at any location.
SECTION E: REPORTING REQUIREMENTS
1. Discharge Monitoring Reports
Samples analyzed in accordance with the terms of this permit shall be submitted to the
Division on Discharge Monitoring Report forms provided by the Director. Submittals
shall be received by the Division no later than 30 days from the date the facility receives
the sampling results from the laboratory.
Part III Page 15 of 8 Pages

Permit No. NCS000462
2. Submitting Reports
Duplicate signed copies of all reports required herein, shall be submitted to the following
address: t
Division of Water Quality
Water Quality Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
3. Availability of Reports, i
l
Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section
308 of the Federal Act, 33 USC 1318, all reports prepared in accordance with the terms
shall be available for public inspection at the offices of the Division of Water Quality. As
required by the Act, analytical data shall not be considered confidential. Knowingly
making any false statement on any such report may result -in the imposition of criminal
penalties as provided for in NCGS 143-215.613 or in Section 309 of the Federal Act.
4. Non-Stormwater Discharges
If the storm event monitored in accordance with this individual permit coincides with a
non-stormwater discharge, the permittee shall separately monitor all parameters as
required under the non-stormwater discharge permit and provide this information with the
stormwater discharge monitoring report.
5. Planned Changes
The permittee shall give notice to the Director as soon as possible of any planned changes
at the permitted facility which could significantly alter the nature or quantity of pollutants
discharged. This notification requirement includes pollutants which are not specifically
listed in the individual permit or subject to notification requirements under 40 CFR Part
122.42 (a).
i
6. Anticipated Noncompliance
The permittee shall give notice to the Director as soon as possible of any planned changes
at the permitted facility which may result in noncompliance with the individual permit
requirements.
7. Bypass
a. Anticipated bypass. If the permittee knows in advance of the need for a bypass, it
shall submit prior notice, if possible at least ten days before the date of the bypass;
including an evaluation of the anticipated quality and affect of the bypass.
Part I I Page 16 of 8 Pages

Permit No. NCS000462
b. Unanticipated bypass. The permittee shall submit notice within 24 hours of
becoming aware of an unanticipated bypass.
S. Twenty-four Hour Reporting -
The permittee shall report to the central office or the appropriate regional office any
noncompliance which may endanger health or the environment. Any information shall be
provided orally within 24 hours from the time the permittee became aware of the
circumstances. A written submission shall also be provided within 5 days of the time the
permittee becomes aware of the circumstances.
The written submission shall contain a description of the noncompliance, and its causes;
the period of noncompliance, including exact dates and times, and if the noncompliance
has not been corrected, the anticipated time compliance is expected to continue; and steps
taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance.
The Director may waive the written report on a case -by -case basis if the oral report has
been received within 24 hours.
9. Other Noncompliance
The permittee shall report all instances of noncompliance not reported under 24 hour
reporting at the time monitoring reports are submitted.
10. Other Information
Where the permittee becomes aware that it failed to submit any relevant facts in an
application for an individual permit or in any report to the Director, it shall promptly
submit such facts or information.
Part lli I'a-e 17 of 8 Pages

Permit No, NCS000462
PART IV LIMITATIONS REOPENER
i
i
This individual permit shall be modified or alternatively, revoked and reissued, to comply with
any applicable effluent guideline jor water quality standard issued or approved under Sections
302(b) (2) (c), and (d), 304(b) (2j and 307(a) of the Clean Water Act, if the effluent guideline or
water quality standard so issued or approved:
a. Contains different conditions or is otherwise more stringent than any effluent limitation in
the individual permit; or 1
b. Controls any pollutant not limited in the individual permit.
The individual permit as modified or reissued under this paragraph shall also contain any other
requirements in the Act then applicable.
f
PART V ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS
I '
The permittee must pay the administering and compliance monitoring fee within 30 (thirty) days
after being billed by the Division'. Failure to pay the fee in timely manner in accordance with
15A NCAC 2H .0105(b)(4) may {cause this Division to initiate action to revoke the Individual
Permit. ,
I
PART VI DEFINITIONS
I. Act
See Clean Water Act.
i
i
2. Arithmetic Mean
I
The arithmetic mean of any set of values is the summation of the individual values
divided by the number ofindividual values.
3. Allowable Non-Stormwater Dischan-,es
This permit regulates stormwater discharges. Non-stormwater discharges which shall be
allowed in the stormwater, conveyance system are:
(a) All other discharges that are authorized by a non-stormwater NPDES permit.
Parts IV, V, and VI Page I of

Permit No. NCS000462
(b) Uncontaminated groundwater, foundation drains, air -conditioner condensate
without added chemicals, springs, discharges of uncontaminated potable water,
waterline and fire hydrant Bushings, water from footing drains, flows from
riparian habitats and wetlands.
(c) Discharges resulting from fire -fighting or fire -fighting training.
4. Best Management Practices (BMPs)
Measures or practices used to reduce the amount of pollution entering surface waters.
BMPs may take the form of a process, activity, or physical structure.
5. Bypass
A bypass is the known diversion of stormwater from any portion of a stormwater control
facility including the collection system, which is not a designed or established operating
mode for the facility.
6. Bulk Storage of Liquid Products
Liquid raw materials, manufactured products, waste materials or by-products with a
single above ground storage container having a capacity of greater than 660 gallons or
with multiple above ground storage containers located in close proximity to each other
having a total combined storage capacity of greater than 1,320 gallons.
7. Clean Water Act
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as
amended, 33 USC 1251, et. seq.
8. Division or DWQ
The Division of Water Quality, Department of Environment and Natural Resources.
9. Director
The Director of the Division of Water Quality, the permit issuing authority.
10. EMC
The North Carolina Environmental Management Commission.
11. Grab Sample
An individual sample collected instantaneously. Grab samples that will be directly
analyzed or qualitatively monitored must be taken within the first 30 minutes of
discharge.
Parts IV, V, and VI Page 2 of 5

Permit No. NCS000462
12. Hazardous Substance
Any substance designate&tinder 40 C1AR Part 116 pursuant to Section 311 of the Clean
Water Act. ;
II Landfill
A disposal facility or part of a disposal facility where waste is placed in or on land and
which is not a land treatment facility, a surface impoundment, an injection well, a
hazardous waste long-term storage facility or a surface storage facility.
14. Municipal Separate Storm Sewer System
A stormwater collection system within an incorporated area of local self-government such
as a city or town. I
15. Overburden
Any material of any nature, consolidated or unconsolidated, that overlies a mineral
deposit, excluding topsoiPor similar naturally -occurring surface materials that are not
disturbed by mining operations.
i
16. Permittee
The owner or operator issued a permit pursuant to this individual permit.
17. Point Source Discharge of Stormwater
i
Any discernible, confinedland discrete conveyance including, but not specifically limited
to, any pipe, ditch, channel, tunnel, conduit, well, or discrete fissure from which
stormwater is or may be discharged to waters of the state.
18. Representative Storm Event
A storm event that measures greater than 0.1 inches of rainfall and that is preceded by at least 72
hours in which no storm event measuring greater than 0.1 inches has occurred. A single storm
event may contain up to 10 consecutive hours of no precipitation. For example, if it rains for 2
hours without producing any collectable discharge, and then stops, a sample may be collected if a
rain producing a discharge begins again within the next 10 hours.
19. Representative Outfall St Itus
When it is established that the discharge of stormwater runoff from a single outfall is
representative of the discharges at multiple outfalls, the DWQ may grant representative
outfall status. Representative outfall status allows the permittee to perform analytical
monitoring at a reduced number of outfalls.
Parts IV, V, and V 1 Page 3 of 5

Pemflt No. NCS000462
20. Rinse Water Discharge
The discharge of rinse water from equipment cleaning areas associated with industrial
activity. Rinse waters from vehicle and equipment cleaning areas are process
wastewaters and do not include washwaters utilizing any type of detergent or cleaning
agent.
21. Secondary Containment
Spill containment for the contents of the single largest tank within the containment
structure plus sufficient freeboard to allow for the 25-year, 24-hour storm event.
22, Section 313 Water Priority Chemical
A chemical or chemical category which:
a. Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund
Amendments and Reauthorization Act (SARA) of 1986, also titled the Emergency
Planning and Community Right -to -Know Act of 1986;
b. Is present at or above threshold levels at a facility subject to SARA title 111,
Section 313 reporting requirements; and
That meet at least one of the following criteria:
(1) Is listed in Appendix D of 40 CFR part 122 on either Table 11(organic
priority pollutants), Table III (certain metals, cyanides, and phenols) or
Table IV (certain toxic pollutants and hazardous substances);
(2) Is listed as a hazardous substance pursuant to section 311(b)(2)(A) of the
CWA at 40 CFR 116.4; or
(3) Is a pollutant for which EPA has published acute or chronic water quality
criteria.
23. Severe Property Damage
Means substantial physical damage to property, damage to the control facilities which
causes them to become inoperable, or substantial and permanent loss of natural resources
which can reasonably be expected to occur in the absence of a bypass, Severe property
damage does not mean economic loss caused by delays in production.
24. Sijznihcant Materials
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
Parts IV, V, and VI Page 4 of 5

Permit No. NCS000462
III of SARA; fertilizers; pesticides; and waste products such as ashes, slag and sludge that
have the potential to be released with stormwater discharges.
25. Significant Spills
Includes. but is not limited to: releases of oil or hazardous substances in excess of
reportable quantities under section 311 of the Clean Water Act (Ref. 40 CFR 110.10 and
CFR 1 17.21) or section 102 of CERCLA (Ref: 40 CFR 302.4).
26. Stormwater Runoff
The now of water which results from precipitation and which occurs immediately
following rainfall or as a result of snowmelt.
27. Stormwater Associated with Industrial Activity
The discharge from any point source which is used for collecting and conveying
stormwater and which is directly related to manufacturing, processing or raw material
storage areas at an industrial site. Facilities considered to be engaged in "industrial
activities" include those activities defined in 40 CFR 122.26(b)(14). The term does not
include discharges from facilities or activities excluded from the NPDES program.
28. Stormwater Pollution Prevention Plan
i
A comprehensive site -specific plan which details measures and practices to reduce
stormwater pollution and is based on an evaluation of the pollution potential of the site.
i
29. Ten Year Design Storm
The maximum 24 hour precipitation event expected to be equaled or exceeded on the
average once in ten years.1I Design storm information can be found in the State of North
Carolina Erosion and Sediment Control Planning and Design Manual.
30. Total flow
The flow corresponding to the time period over which the entire storm event occurs.
Total flow shall be either;, (a) measured continuously, (b) calculated based on the amount
of area draining to the outfall, the amount of built -upon (impervious) area, and the total
amount of rainfall, or (c) estimated by the measurement.of flow at 20 minute intervals
during the rainfall event.
Parts 1V, V, and•VI Page 5 of 5

Permit No. NCS000462
31. Total Maximum Daily Load (TMDL)
A TMDL is a calculation of the maximum amount of a pollutant that a waterbody can
receive and still meet water quality standards, and an allocation of that amount to the
pollutant's sources. A TMDL is a detailed water quality assessment that provides the
scientific foundation for an implementation plan. The implementation plan outlines the
steps necessary to reduce pollutant loads in a certain body of water to restore and
maintain water quality standards in all seasons. The Clean Water Act, section 303,
establishes the water quality standards and TMDL programs. Information about the NC
TMDL Program and a list of approved TMDLs for the state of North Carolina can be
found at: http://h2o.enr.state.ne.us/tmdl/Cencral_TMDLs.htm.
32. Toxic Pollutant
Any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act.
33. Upset
Means an exceptional incident in which there is unintentional and temporary
noncompliance with technology based permit effluent limitations because of factors
beyond the reasonable control of the permittee. An upset does not 'include
noncompliance to the extent caused by operational error, improperly designed treatment
or control facilities, inadequate treatment or control facilities, lack of preventive
maintenance, or careless or improper operation.
34. Vehicle Maintenance Activity
Vehicle rehabilitation, mechanical repairs, painting, fueling. lubrication. vehicle cleaning
operations, or airport deicing operations.
35. Visible Sedimentation
Solid particulate matter, both mineral and organic, that has been or is being transported
by water, air, gravity, or ice from its site of origin which can be seen with the unaided
eye.
36. 25-year, 24 hour storm event
The maximum 24-hour precipitation event expected to be equaled or exceeded, on the
average, once in 25 years.
Parts 1V, V, and V1 Page 6 of 5

Permit: NCS000462 ; CMC = Criterion Maximum Concentration
Facility: Air Liquid6 FAV = Final Acute Value
Industrial U.S
/ Wake Forest
ASU
Reviewer: Aisha Lau
Benchmarks last updated 8/15/2005 by B. Georgoulias
& J. Wynn
Receiving Waters: UT to Smith
Creek
Classification: C, NSW
f
Analysis Guidance: i
wti.. .. c P. _.........
Parameter
, Benchmarlt
,tfall;#1;
()u1,-.v.'J%li,r6f1
'r,Urtits'
r
a: :,wYa,�i
i
Max z
t
�3
BOD5 (Biological Oxygen
30
mg/I
BPJ, Based on Secondary Treatment Regulation
Demand, 5-day)
(40 CFR 133.03),
COD (Chemical Oxygen
120
40.9
mg/l
BPJ, Generally found at levels 4 x (BODE) in
Demand)
l
domestic wastewaters.
Nitrogen, Total
30
0.55
mg/1
TKN + Nitrate + Nitrite Benchmarks (Expressed in
mg/1 of NJ.
Oil and Grease
30
<5
m /I
BPJ, based on wastewater permit limits.
pH (min, max)
6-9
6.68
su
Water Quality Standard (Except Sw waters can be
as low as 4.3
Phosphorous
2
0.19
mg/I
BPJ, based on wastewater permit limits for NSW
waters.
TSS (Total Suspended
100
146
mg/1
BPJ, EPA Multi -Sector Permit
Solids
The only parameter that is showing!up at a level of concern is TSS. This is likely just from the
gravel surface around the plant getting' ground down. Since this facility just breaks air down into its
components, Oxygen, Nitrogen, and Argon, there really isn't much potential for pollutants to get
exposed to stormwater. '

OF W A TFR Michael F. Easley, Governor
2FEB William 0. Ross Jr., Secretary
N`O� QG t I !Q��j orth Carolina Department of Environment and Natural Resources
�l
1) _ Alan W. Klimek, P. E. Director
iN9tl81iQg �R T�, Division of Water Quality
❑ i' Or111Nre�� Cotten H. Sullins, Deputy Director
Division of Water Quality
i
STAFF REVIEW AND EVALUATION RRO
NPDES Stormwater Permit
Facility Name:
Wake Forest ASU; Operates! by Air Liquide
I
NPDES Permit Number:
NCS000462
Facility Location:
Wake Forest, NC (Wake Co.)
Type of Activity:
3 j -_
{ Industrial —Separates air into its principal cons tifd'itsf_Oxygen,
Nitrogen and Argon
}
SIC Code (if applicable):
2813
ReceivingStreams:
I UT to Smith Creel- LL~ >.
River Basin:
Neuse River Basin, Sub -basin 03-04-02
Stream Classification:
i
C-NSW
Proposed Permit Requirements:
See attached draft permit.
Compliance Schedule:
N/A
Basis for Monitoring:
See attached Monitoring Data Analysis. As can be seen in that, the
only pollutant that showed up above the benchmark concentration
was TSS.
Since this facility is in the Neuse River basin l debated including
i total Nitrogen as a constituent to be monitored for. However, the
only Nitrogen thev'd have on site would be in the gaseous phase,
and that will not cause a store va.ter pollution problem.
Basis for Other Requirements:
N/A.
Response Requested by (Date): Oc.tnb&v- 2 a c s- 1�•�
Central Office Staff Contact: Aisha Lau, (919) 733-508.3, ext. 578
DOCUMENTS REVIEWED
NPDES Stormwater Permit Application Materials
2002 Neuse Basinm ide Plan
August 18, 2005 Name Ownership Change
Central Office Review Summary:
Facility discharges stormwater to an unnamed tributary to Smith Creek in the Neuse River Basin. This
waterbody is not listed on the 303(d) list of impaired waters; however, it is a nutrient sensitive water
(NSW).
ASrt*Y
N. C. Division or Water Quality 1617 Mail Service Center R Leigh, North Carolina 27699-1617 [phone] Customer Service
1.877-623-6748

LNTCS000462
Manufacturing industrial gases, the only potential exposures for stormwater pollutants are the
oils involved with the various compressors and in storage. A review of the analytical data didn't turn up
oil and grease numbers above the cutoff concentration though. The only pollutant that appeared at a
level of concern was TSS. I'm not sure what could be causing this, perhaps dust from the gravel lot, but it
has been included in the monitoring.
Recommendation: Based on the documents reviewed, the application information submitted on April 7, 2004
is sufficient to issue an Individual Stormwater Permit.
Prepared by (Signature)
Stormwater Permitting Unit Supervisor
Concurrence by Regional Ol
Water Quality Supe or_
Regional Office Staff Comments
Date A 61
lot
a-"Cll t", ---C�
�\- I
2

ME
US

Markers
Name: NCS000462 - Air Liquide Industrial U.SJ Wake Forest ASU
Short Name: NCS000
Coordinates: 0350 57' 13.21" N, 078o 31' 1.70" W
Comment: Air Liquide Industrial U.S. i Wake Forest ASU, subbasin 03-04-02, Neuse River
Basin, Wake County, UT to Smith Creek, Class C, NSW, C24NE