NCG500604_Permit (Issuance)_20070723

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Coleen H. Sullins, Director
Michael Resh
BOC Group, Inc.
575 Mountain Avenue
Murray Hill, NJ
Dear Permittee:
07974
July 23, 2007
Subject: Renewal of coverage / General Permit NCG500000
BOC Gases - Midland
Certificate of Coverage NCG500604
Cabarrus County
In accordance with your renewal application [received on January 29, 2007], the Division is renewing
Certificate of Coverage (CoC) NCG500604 to discharge under NCG500000. This CoC is issued pursuant to the
requirements of North Carolina General Statue 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].
If any parts, measurement frequencies or sampling requirements contained in this General Permit are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such demand is made, the certificate of coverage shall be final and binding.
Please take notice that this Certificate of Coverage is not transferable except after notice to the
Division. The Division may require modification or revocation and reissuance of the certificate of coverage.
Contact the Mooresville Regional Office prior to any sale or transfer of the permitted facility.
Regional Office staff will assist you in documenting the transfer of this CoC.
This permit does not affect the legal requirements to obtain other permits which may be required by
the Division of Water Quality or permits required by the Division of Land Resources, Coastal Area
Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning the requirements of the General Permit, please contact Jim
McKay [919 733-5083, extension 595 or [e-mail]].
Sincerely,
for Coleen H. Sullins
cc: Central Files
Mooresville Regional Office / Surface Water Protection
NPDES file
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
512 North Salisbury Street, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: www.ncwaterquality.org
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper
NothCarolina
Naturally

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500604
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE AND SIMILAR WASTEWATERS 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,
BOC Group, Inc.
is hereby authorized to discharge from a facility located at
BOC Gases - Midland
3537 Fieldstone Trace
Midland
Cabarrus County
to receiving waters designated as an unnamed tributary to Muddy Creek in subbasin 30712
of the Yadkin River Basin in accordance with the effluent limitations, monitoring
requirements, and other conditions set forth in Parts I, II, III and IV hereof.
This certificate of coverage shall become effective August 1, 2007.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day July 23, 2007.
‘7627 4.7:4:40,--"--1
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

To: Permits and Engineering Unit
Water Quality Section
Attention: Charles Weaver
SOC PRIORITY PROJECT: No
Date: May 9, 2007
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Cabarrus
NPDES Permit No.: NCG500604
MRO No.: 07-1
PART I - GENERAL INFORMATION
1. Facility and address: BOC Gases
3537 Fieldstone Trace
Midland, NC 28107
`v'
MAY 1 z 2007
2. Date of investigation: May 3, 2007
3. Report prepared by: Samar Bou-Ghazale, Environmental Engineer I
4. Person contacted and telephone number: Howard Schultz, Area Process Operations
Manager, Tel# [phone].
5. Directions to site: From the jct. of Hwy. 601 and Fieldstone Trace (SR 3510) 1.0 mile
south of the Town of Midland in southern Cabarrus County, travel west on Fieldstone
Trace 0.4 miles. The BOC Gases site will be on the left (west) side of Fieldstone Trace.
6. Discharge point(s), List for all discharge points: -
Latitude: 35° 13' 10" Longitude: 80° 31' 10"
Attach a USGS Map Extract and indicate treatment plant site and discharge point on map.
USGS Quad No.: G 16 NE U.S.G.S. Name: Midland, NC
7. Site size and expansion area consistent with application: Yes. There is sufficient area for
the construction of WWT facilities, if needed.
8. Topography (relationship to flood plain included): The site is relatively flat with slopes
not exceeding 2%.
9. Location of nearest dwelling: Over 1000 feet from the site.

Page Two
10. Receiving stream or affected surface waters: Unnamed tributary to Muddy Creek
a. Classification: C
b. River Basin and Subbasin No.: Yadkin 030712
c. Describe receiving stream features and pertinent downstream uses: Wastewater is
discharged into a small (less than 'A acre) man-made pond prior to being
discharged into the receiving stream. Downstream uses are primarily agricultural
in nature.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater: Intermittent (Design capacity)
b. What is the current permitted capacity: N/A
c. Actual treatment capacity of current facility (current design capacity): Intermittent
discharge.
d. Date(s) and construction activities allowed by previous: N/A
e. Description of existing or substantially constructed WWT facilities: See 10.c
above.
f. Description of proposed WWT facilities: N/A
g. Possible toxic impacts to surface waters: Biocide additives are being used at this
facility. Approval of these additives by the aquatic toxicity unit will be necessary
prior to permit issuance.
h. Pretreatment Program (POTWs only): Not Needed.
2. Residual handling and utilization/disposal scheme: Residuals generation is not expected.
3. Treatment plant classification: This facility will not meet the minimum criteria for a Class
I rating.
4. SIC Code(s): 2813 Wastewater Code(s): 14
MTU Code(s): 00000

Page Three
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)? No public monies will be used in the construction of this
facility.
2. Special monitoring or limitations (including toxicity) requests: None at this time.
3. Important SOC/JOC or Compliance Schedule dates: N/A
4. Alternative analysis evaluation
a. Spray Irrigation: Insufficient area.
b. Connect to regional sewer system: All domestic wastewater and truck wash water
generated at this facility is treated at the WSACC's Muddy Creek WWTP;
however, the POTW does not permit cooling water and condensate into it's
collection system.
c. Subsurface: Insufficient area.
PART IV - EVALUATION AND RECOMMENDATIONS
The applicant has requested approval to discharge non -contact cooling water and
condensate from the manufacturing of liquid oxygen, liquid nitrogen and Argon at this site near
Midland, NC. Domestic wastewater and truck wash water are being discharged into the
WSACC's Muddy Creek WWTP. The wastewater discharges into a small, earthen pond prior to
discharging into the receiving stream. This pond also collect SW from other areas of the
company's property.
Pending review and approval by P&E, and Aquatic Toxicology group, it is recommended
that the General Permit be reissued as requested.
Signature of Report re er Date
Water Quality Regional Supervisor Date

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Adr i% BOC
Sent via Certified Mail
January 25, 2007
Mr. Charles H. Weaver
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Renewal application for BOC Gases Midland, NC
Certificate of Coverage # NCG500604
Dear Mr. Weaver:
BOC
575 Mountain Avenue
Murray Hill, NJ07974
Telephone [phone]
Michael Res)
Manager, Environmental Affairs
[phone] — direct
tnikareshOboc.com
Enclosed is a Notice of Renewal Intent application (original and two copies) for the BOC Gases facility located at
3537 Fieldstone Trace, Midland, NC 28107. The existing Certificate of Coverage number is NCG500604. The
facility discharges non -contact cooling water, condensation, and storm water to an on -site detention pond and
then to Muddy Creek. The storm water discharge falls under the "exempt storm water" definition as all rain water
flows to the pond designed for cooling water.
For chemicals used as inhibitors in the Cooling Tower, MSDSs are enclosed as well as sent under separate cover to
the Aquatic Toxicology Unit. Ozone gas is created and dissolved in a side stream of cooling water and fed into the
tower at three points for use as a biocide. It is fed 8 to 12 hours per day to achieve a concentration of about 0.2
ppm ozone. A Biocide worksheet was not completed for ozone.
Please feel free to contact me with any questions or the Plant Manager, Howard Schultz, at 704-888-3884.
Sincerely,
di-h/
Mi hael Resh
Manager, Environmental Affairs
Cc: Howard Schultz —Midland, NC
Aquatic Toxicology Unit— NC DENR
Talle' Lopez - BOC
Enclosures
A divisor, of The Linde Group

ern
NCDENR
J N 2 t,'
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
NOTICE OF RENEWAL INTENT
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage (CoC): NCG500 i" 0 y
(Please print or type)
1) Mailing address' of facility owner/operator:
Company Name d C. ro.1 I L•
Owner Name
Street Address
515 rk
City tk u r v- o-'1
Telephone Number ci 0 $ 7 " 71 - 1 LI 5 2.
Email address �'►� i K 'e- - r �5i1 @ b ocr • Lc w
State N 3 ZIP Code C)-7 c 1 4
Fax: 9°�
* Address to which all permit correspondence should be mailed
2) Location of facility producing discharge:
Facility Name d 0 C- V' a s e 5
Facility Contact 140 w a- r d S c.lA v 1+ Z
Street Address 35 3 7 l= i --
771- 12-03
City M a t co'' a State N C- ZIP Code 2/ 0 7
County C_ c..b r- r a 5
Telephone Number 7 0 H ' $' 58139 Fax: 70 y $ it g_ 37 B 5
Email address o w cw` d . S c-� ) l -�' 2- Q b o L. co w1
3) Description of Discharge:
a) Is the discharge directly to the receiving stream? O Yes jNo
(If no, submit a site map with the pathway to the potential receiving waters clearly marked. This includes tracing the pathway of the
storm sewer to the discharge point, if the storm sewer is the only viable means of discharge.) s ac,ln I 4 2
b) Number of discharge outfalls (ditches, pipes, channels, etc. that convey wastewater from the property):
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
o Non -contact cooling water Outfall(s) #:
o Boiler Blowdown Outfall (s) #:
Page 1 of 3

II on -c 0 vvi-ct. . "V
$ Cooling Tower Blowdown
L Condensate
NCG500000 renewal application
w-'- V3 cL, w St,'
Outfall (s) #:
Outfall (s) #:
11-Other Outfall (s) #: 1
(Please describe "Other") S+o w r
d) Volume of discharge per each discharge point (in GPD):
#001: 31 o 00 #002: #003: #004
4) Please check the type of chemical [s] added to the wastewater for treatment, per each separate discharge
point (if applicable, use separate sheet):
❑ Chlorine
0 None
8 Biocides
omo v► .e.-
si
LA Corrosion inhibitors
0 Algaecide 0 Other
5) If any box in item (4) above [other than None] was checked, a completed Biocide 101 Form and
manufacturers' information on the additive must be submitted to the following address for approval:
NC DENR / DWQ / Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
6) Is there any type of treatment being provided to the wastewater before discharge (i.e., retention ponds,
settling ponds, etc.)? 1. Yes 0 No See- l"''`'' f.-,"4- 3
(If yes, please include design specifics (i.e., design volume, retention time, surface area, etc.) with submittal package. Existing
treatment facilities should be described in detail. )
7) Discharge Frequency:
a) The discharge is: 0 Continuous 511. Intermittent 0 Seasonal*
i) If the discharge is intermittent, describe when the discharge will occur:
w ‘"e_V% - ^- ,r -eh}. o •� pcti- ct — v- o X , eve-v-y
ii) *Check the month(s) the discharge occurs: 1% Jan S Feb 6. Mar. C Apr C2P May EW Jun Jul
tY Aug. &Sept. 15f Oct. fft Nov. a Dec.
b) How many days per week is there a discharge? 7
c) Please check the days discharge occurs: CR Sat. 1itl Sun. Ei Mon. ® Tue. Ei Wed. ® Thu. i Fri.
8) Receiving stream[s]:
a) To what body or bodies of water (creek, stream, river, lake, etc.) does the facility discharge
wastewater? •If the site discharges wastewater to a separate storm sewer system (4S), name the
operator of the 4S (e.g. City of Raleigh). t . a -a y c_rce.
b) Stream Classification: C : Al.%) c—A":` C- 1 ' s e c.a‘" a G.,r y
Page 2 of 3

NCG500000 renewal application
Additional Application Requirements:
The following information must be included in triplicate [original + 2 copies] with this application or it will
be returned as incomplete.
A Site map. If the discharge is not directly to a stream, the pathway to the receiving stream must
be clearly indicated. This includes tracing the pathway of a storm sewer to its discharge point.
> Authorization for representatives. If this application will be submitted by a consulting
engineer (or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized Representative of the
applicant.
Certification
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing. r1 < <-�^ t_ C��- S Nr\-
Title: G, e— E.1" r c Vn v.1 e_NAG•.k �
/)
.5 .el&or)
(Signature of Applicant) (S ate S ned)
North Carolina General Statute 143-215.6 b (i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan or other document
filed or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who
falsifies, tampers with or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under
Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by
a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine
of not more than $25,000 or imprisonment not more than 5 years, or both, fora similar offense.)
This Notice of Renewal Intent does NOT require a separate fee.
The permitted facility already pays an annual fee for coverage under NCG500000.
Mail the original and two copies of the entire package to:
Mr. Charles H. Weaver
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 3 of 3

FILING REF:
Obtained from EDMS, Approved Electronic Copy. [Printed 14 Sep . 2006]
08040 P D 050 01 OF 02 SIZE D
CHARGE 10. LIM TYPE SEITICNCE SHEET SHEETS
Chemical Storage Areas
TANK No.
MATERIAL
STORED/
STORED/
MAXIMUM
CAPACITY (gat)
OR % OF 55
gal. DRUMS
OWASTE
OIL
275ga1
O➢IESEL
FUEL
10,0000 at
O
NEW MOTOR
OIL (907.
MINERAL CIE)
275gal
O
TRUCK WASH
SOAP
175ga1
5
MOBIL DTE
LIGHT (SOLVENT
REFINED HEAVY
PARAFINIC
PETROLIUM
DISTILLATES)
200 I
Ba
OTEXACO
6
REGAL
060 46
(HIGHLY REFINED
MINERAL OIL)
335g n1
O
CHEVRON AIO
ISO 32(HIGHLY
REFINED
MINERAL OIL)
1,500gal
O
NU-CALGUN
ZEROL 150
(ALKYLBENZENE)
1650 a1
09
TEXACO
TRANSFORMER
OIL (SOLVENT
REFINED
HYDROTREATED)
1,335g e1
jQ O
TEXACO
TRANSFORMER
OIL (SOLVENT
REFINED
HYDROTREATED)
279ga1
OII
PARTS WASHING
SOLVENT
(PETROLIUM
DISTILLATES,
MINERAL SPIRITS)
20ga1
I2
PARTS WASHING
SOLVENT
(PETROLIUM
DISTILLATES,
MINERAL SPIRITS)
20goL
I3
O
TEXACO
TRANSFORMER
0128 VHS OIL
2 ZEROL
ZGENL
(HALOGENATED)
8) UMgal
DRUMS
0FRYOUEL
MOBIL DTE
OIL LIGHT,
OIL,
R&0 OILS
BOWFROST
<7) SSgal
DRUMS
0GE
IS
BETZ,
CONTINUUM
AE C3109
500gn1
8WATER
TREATMENT
CHEMICALS
(4) SSga1
DRUMS
0KAESER
0
DSWFRSST,
OIL,
DIALA OIL,
MEROPA 220
OIL
(4) 55ga1
DRUMS
@
CRUSHED,
DRAINED OIL
FILTERS
(2) SSgal
DRUMS
0USED
19
& NEV
ANTIFREEZE,
DIESEL FUEL
(1) 55ga1
DRUM
0
ETHYLENE
GLYCOL,
VAL VOL INE
150/40
(2) 55ga1
DRUMS
N 28'43'57' E
NOTE, DOES NOT INCLUDE PRODUCT STORAGE TANKS
1 5
Attachment 1
BOC Gases - Midland, NC
NCG500604 Renewal
1
I1
1
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11
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1
1
1
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ADSORBERS
GRAVEL
LID. NITROGEN
LIQ. OXYGEN
LIQ. ARGON
HEATER
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TRANSF.
0
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WASTE
DISPOSAL
II
LID NZ STORAGE
TANK LIO 02 STORAGE,
TANK
PUMPS
0 01
N 2 PU PSJ
■II'rCOLD
BOX 02 PUMPS
-----Al
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is CHI
16 OI lam I# I EW
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TREATMENT' PARKING in
BUILDING I CD
out
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02 PUMPS
CRUDE L10.
ARGON
CONTROL/OFFICE[
BUILDING
SEE RIGHT)
COOLING
()TOWER
•
PLANT
NORTH
01
LL
LLJ
cE
MACHINERY BUILDING
SC AL Er 1'=20'-0'
CONTROL/OFFICE
BUILDING
SCALE, 1'=20'-0'
REMOTE I/O 6
TRANSMITTER ROCK
LEGEND
19 20
AUTOMATIC SPRINKLER SHUTOFF
A BUILDING EXITS
A EMERGENCY ALERT BUTTON
EMERGENCY LIGHTS
4, EMERGENCY MACHINERY SHUTDOWN
y EVACUATION ROUTE
FIRE EXTINGUISHER
11 FIRE HYDRANT AND HOSES
FIRST AID EQUIPMENT
▪ NATURAL GAS SHUTOFF
OXYGEN BLOCK VALVE
PIPELINE ISOLATION VALVE SWITCH
SAFETY SHOWER/EYEWASH
s STRETCHERS
▪ TANK ISOLATION VALVE
TELEPHONE
or WIND SUCK
❑ OIL/WATER SEPARATOR
Ei SPILL CONTAINMENT EQUIPMENT.
EP EMERGENCY PLAN LOCATION
SAFE EVACUATION ASSEMBLY 80INT
INCIDENT COMMAND CENTER
IE/SI
❑K KEY BOX FOR GATE
IMS➢SI MSDS BOOK LOCATION
PERSONNEL PROTECTIVE EQUIPMENT
❑W FIRE WATER SHUTOFF
O EMERGENCY TANK ISOLATION REMOTE SHUTOFF
O STORM SEWER DRAINS
• COMPRESSED CYLINDER STORAGE
OF FLAMMABLE COMPRESSED CYLINDER STORAGE
O SEWER CONNECTION -COOLING TOWER,TRUCK WASH,OIL/WATER
SEPARATORS DISCHARGE TO SANITARY SEWER
OW POTABLE WATER SHUTOFF
---- PROPERTY LINE
111 ELECTRICAL SHUTOFF
111111111 RAILROAD
Q—o o FENCE & GATES
FIRE WALL
HIGH VOLTAGE AREA
PARKING AREA
ROADS & PAVED AREAS
I MOST -0— HAZARCDUS ZONE --Y LEAST V
ROLL UP DOORS
.Ard BOC
ENGINEERING CENTER, 575 MOUNTAIN AWE, MURRAY HILL, NJ 07974
A DIVISION T HOE LIMITED
1
00 2B-JUL-05 RU TIER
REV DATE BY PAD
RER
APP
APPROVAL
DRAWING ISSUED
REVISION NOTES
THIS DRAWING CONTAINS AND 1S ITSELF THE VALUABLE, CONFIDENTIAL AND PROPRIETARY
OR
INFORMATION ION F U
THE HOC GROUP, EITHER T OR DOCUMENT NTHE
INFO ]ON CONTAINED MERE H E ➢]STRDBUIEK, E➢FD SE➢OLE ORPARBT. FOR (9) PRPOSE EXCEPT AS SPECIFICRLLY
AVIHORIZEp HY US WRITING. TH S DRAWING ]S UAN➢BSHPLL
CMq]N OUR EXCLUSIVE UPROPERTYWRND SHALL E IMME➢IgTELY RETURNED UPON REDLfBT.
Copyright 0 the BOC Group. AU gets reserved.
TITLE
EMERGENCY PLOT PLAN
AIR SEPARATION PLANT
BOC MI➢LAND, N.C.
Scala
I'=40'-C'
08040 -P -D-050 -01-00
ONRFE No TRIO TYPE "MACE SIEE1 REV
7 1 B
10
11
12
13
14
15
15
17
t8
9 1
2D
A
CAD DRAWING NOT TO BE MODIFIED MANUALLY.

Ar- \� '-� , Attachment 2 v�►,
BOC Gases - Midland, NC
NCG500604 Renewal
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BOC Gases — Midland, NC
NCG500604 Renewal
Attachment 3
A retention basin is located in the northeast corner of the property
with the following specifications:
Design volume —18,481 cubic feet
Retention time — 21.6 gpm or 4 days
Surface area - 9,079 square feet