NCS000046_MONITORING INFO_20180403

STORMWATE-R-DIVISION-CODING-SHEET
PERMIT NO.
NL�O� �
y
DOC TYPE
❑ FINAL PERMIT
)' MONITORING INFO
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
zAI�: Oy a3
DOC DATE
❑
YYYYM M DD

STORM NVATER DNCI 1),Lftcti, OUITA I A, (SDO)
MONITORING REPORT
Permi(-N itinher NCS 0 0-0 0 4 6
FACILITY NAMEAle-!_�c�S GIOS*-,S
PERSON
CER"11FIED LABORATORY(S►+Ct 61.3
Part A: Specific Monitoring Reiltsiremenis APR 03 zo18
SAN1111,FS CO1.,LEC'140) DURINGCALENDAR VEWZ.-a d
('Phis monitoring report shall Io received by the Division no Inter disco 30 days from
the 4111(e the f1wilily receives flie sampling results from [lie Inharatin.y.)
COUNTY -P Uf�O-v`-
PITONEENO. &LOU
(STGNATUR11, 01? 11INIMITTE E , OR DESIGNEF)
BY this signature, T certify that this report is accurate
c(III11110C 10 the best Of lily ](110),viedge.
'No�
CODA
V.
Phos
.,Mg/L
mg/L
standard
—7-7
S.t, t2
—1
Ki D
7.1
SWO05
3 k.12
Does this facifity pti-l'orm Vchiclt~ Maintenance Activilies using more Ilion 55 pllomq ohim molar oil per ninjidi? yes X-110
(if'yes, complete Part 11)
Part 13: Vehicle Maintenance Activity Moniloringy Requirements
'01
0 1
005 0�,
Forill MU-2917-112608

STORM EV r..NT CI-IARAC`i'ERISTICS:
Date 3, -• !? n
Total Event Precipitation (incites): � _
Event Duration (hours): (only if applicable — see permit.)
(if more than one stone event was sampled)
Date '
Total Event Precipitation (incltes):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Hiles
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"I certify, under penalty of Inw, that this document and till attachments Were prepared under my direction or stipervision In accordance With !t
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, nccurnte, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of 11'ermittee) (Date)
Form S W U-247-1 12608
Page 2 of 2

0
r S �jCi RMWATER POLLUTION PREVENTIQNPLAN x
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DEVELQPM?ENT A`N'D IMPLEMENTATIONW.
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ERTIFICATI4N�
F
North Carolina Division of Water Quality - Stormwater Permitting Unit
RECEIVED
Facility Name: Airgas Speciality Gases SEP 18 ZU14
Permit Number: NCS000046
Location Address: 630 United Dr CENTRAL FILES
Durham, NORTH CAROLINA 27713 DWR SECTION
County: Durham
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all attachments were
developed and implemented under my direction or supervision in accordance with a system designed to assure that
qualified personnel properly gather and evaluate the information required by the SPPP. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information
gathered is, to the best of my knowledge and belief, true, accurate and complete."
And
is"l certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP has been
fully implemented at this facility location in accordance with the terms and conditions of the stormwater discharge
permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
;Sign (according to permit,'signatory requirements) and returnthis Cert>tficatYon DO NOT { ,.
,SEND STORMWATER POLLUTION PREVENTION PLAN iWITHa THIS,CERTIFICATI0N`=
{
Signature C �a _ Date 3.7-0 t 4'
ec
Print or type name of person signing above Title
r SPPP Certification 5/09
101

fir

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Mr. Daniel Farris
Airgas USA, LLC
630 United Drive
Durham, NC 27713
Dear Mr. Farris:
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secretary
TRACY DAVIS
August 15, 2016 Dlrecwr
RECEIVED
AUG 19 2A
CENTRAL FILES
DWR SECTION
Subject: NPDES Stormwater Permit NCS000046
Airgas USA, LLC
Formerly Airgas Specialty Gases, Inc.
Durham County
Division personnel received your request to revise your stormwater permit to accurately reflect
your new company and/or facility name.
Find enclosed the revised permit cover page. The terms and conditions contained in the
Individual Permit remain unchanged and in full effect. This revised permit cover page is
issued under the requirements of North Carolina General Statutes 143-215.1 and the
Memorandum of Agreement between North Carolina and the U.S. Environmental Protection
Agency.
Please note that the certificate of coverage shows the permit expired on January 31, 2015.
We received the renewal application on July 21, 2014 and currently have a back log of
renewals that we are working through. Please continue to abide by the conditions of the
expired individual permit until a new permit is issued for this facility.
If you have any questions or need further information, please contact the Stormwater
Permitting Program at [phone].
Sincerely,
for Tracy E. is, P.E., CPM, Director
Division of Energy, Mineral and Land
Resources
cc: Raleigh Regional Office
Stormwater Permitting Program Files
Central Files
State of North Carolina j Environmental Quality I Energy, Mineral and Land Resources
1612 Mail Service Center 1 512 North Salisbury Street I Raleigh, North Carolina 27699-1612
919 707 9220 T

r'
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
PERMIT NO. NCS000046
TO 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,
Airgas USA, LLC
is hereby authorized to discharge stormwater from a facility located at
Airgas USA, LLC
630 United Drive
Durham, NC
Durham County
to receiving waters designated as a UT of Northeast Creek, a class C; NSW stream in the Cape
Fear River Basin, in accordance with the discharge limitations, monitoring requirements, and
other conditions set forth in Parts I, II, III, IV, V and VI hereof
This permit and the authorization to discharge shall expire at midnight on January 31, 2015.
Signed this day August 15, 2016.
for Tracy E. Davis, P.E., Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission

Permit Numher,NCS 0 0 0 0 4-1Vo
1- -
I?ACILITYNA-ME 08 1 nA"
PERSON COLLECTING MP
CERTIFIED LABORATORY(S)
Em
Part A: Specific Monitoring Requirements
-0 0
STORNIWATER DISCI- KRGE OUTFALL (SDO)
I MONITORING REPORT
SAMPLES COLLECTED DURING CALENDAR YEAR: t7,
(This monitoring report shall be received by the Division no later than 30 clays front
the date the facility receives the sampling results from the laboratory.)
�-Sels I COUNTY Z>
1kftAt6V% AWNE NO. lQ S Ill 1,
Lab #-� �O%Vus '—*-;�-
1, a b # I (SIGNATURE OF PERMITTEE OR DESIGNEE)
By this signature, I certify that this report is accurate
complete to the best of my knowledge.
,Oiitfalir",.'Tg,-7.�',�,,�.�i,�,-�
, . . ...
iDate'#
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FEBLIA ZQ 11
003
CENTRAL FILIb
DWQ1130G
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes C�110
(if yes, complete Part B)
Part B.- Vehicle Maintenance Activity Monitoring Requirements
iS0050"",
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Form SWU-247-112608
Page 1 of 2

STOIC -EV ►NT CHARACTERISTICS:
Date2.3.z6iq . 7
Total Event Precipitation (inclics):
• I•
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Event Duration (hours): (only if applicable — see penilit.) Raleigh, North Carolina 27699-1617
(if more than one stomi event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
"1 certify, under penalty of law, that this document and all attachments were prepared under any 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. 1 am aware that there are sigiiificant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
e7Z4,1L6,,,—L ZA)p—�,— -XI � ;�J) Id -
(Signature of Permittee) (Date)
a
i
Fonn S W U-247-1 12608
Page 2 of 2

0
0 .0
ST01MINNIATER DLSCIV:­iOGE OUTUALL (SI)O)
NI ON ITU) R I NGIMPORT
FACIE. TY NANIKA tqas SwA'a64 G
n,,m,soN couxium(:-.�ANII PIXL(S) ri.
CERTIFIED LABORATORY(S)c- -I vro -I —],;11) //—
C,0SAgjnv ea
fart A: Spedlic Monilloring Requiremenis,
SA N11 PLES 0 - AAA( T1,A) DURING CALMDAR VFAIZ:
Ari�4 WVWEl)0 1A "AmIl be received by the Division on later fli:m 31) (hip; from
4_Or11A Iit7lcceivvs 1114" S11111111ilig re'sulls 1'roull the 1.1boralory.)
FEB
"ONK NO. ajjj 14 14 - —5 Q
CENTRAL FILE
J�,J,Uj 'N I,- I?
DWR SECTIO 'LTURE 01, PERM111TE OR DESIG
� PIG N
IV MN Agmhwq I cullp Hmt ibis report is accurvile
Cnillplele 11) (lie best of Illy knowledge.
IC6123
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Y
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4
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5 G&OZ
k. 2.� -ZO to
k
(0.(o
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Does ON No Pig pedorm Vehicle, using nwredmn 55 g0kyw of new mofor nil pvi- monlli?_yes X110
(Wyes, colliple(e Par[ 11)
I"Irt It: Vehicle N'billtelin lice Aclivily MunhuinL, RequidemmHS
so 0 5 0
M11
.imp.
ll1WoWE 0va0
TrMl till.1 '' IN:
For"i SVVU-247-1126U8
Page M

•
S TORNI EV t�'1' CHARt\CTLRISTICS:
Date l.Z(o•Zo(S' (�I!
Total Event Precipitation (incl►es):
Event Duration (lioiu•s):.2 krrS (only if applicable —see permit.)
(if more than one stone event vas sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see pemiit.)
Mail Original and one copy to:
Division of Water Quality
Attu: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"I certify, under penalty of law, that this document and all attachments were prepared under lily direction or supervision in accordance with a
system designed to assure that qualified personuel properly gather and evaluate the information subinitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering; tite information, the information stibmitted is, to tine best
of my Imowledge and belief, true, accurate, and complete. I ate aware that there are significant penalties for submitting false information,
including; the possibility of fines and imprisonment for knowing; viointions."
t.. n a. 16'LO(jr—
(Signahire of Permittee) (Date)
1 ' o-V`R - (\3 y c C�+J 4_.J c 6' c .
CX0���
Form SWU-247-1 1260E
Page 2 or)

1, 1 1 J L I k I I I
. r . REC91Vtdflll
0 0 6 SEP 15 2015 ."HOC It'I'VI.O MIMING AIJI;Nl).AVAR lz V: 2&977'
l'hi:, I Ilia I I i ill 6 11 It. I SII;Jjl III! I-ro'k,cil 1) y Ihi; I ).ivisimh 111) 1;111!1, 111;411 'M 41;1
CENTRAL FILES h-41111 list.: hibill-Movy.) rr
r"
0 W ,SECTION
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I,ABOIZA-roizv(sc—1 h Loll
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Oivivinnni W,ilerOutility
To(al. 11,venf i'r'r:eipiL-r[ion! (i,lrhes;• _ �y _ I617 Mail %;rvicu (cntcr
ICvcIIf DIII-:llion (hlmrs): I _ (olily il' tllhlit illfc ;cr: lrr.ruiil.l 1:aleil;li, 11Iirr1lt G<iroliwi 27699-1617
(il nu,uu ll1an MIC sI(nAnl .tiaiul,leci)
Ilalc � .
'f'ufa! I�;vc�ni I'rrcillfla[iury (iticlu•s1: __-. _._.....___
1�:1'I�ul Ilur:Nfou (flours): �----_ _ 1irn1�+ il��i1l,lit?nl�lr� xr�: llarnut.l
1 ,
''I rrrIiVy, III IIIvr Ire-na11y'Pf I'm, 111:11 Ihfs tlocrtn,enl aoll all aW11.11 nulls sr:rc: p1'r.l):11,441 rtniler Illy IlirCCliou or StilWt-ViSill1i fit accur(l:tucc ,villl :t
5)'sicnt 11Csik'ILC 1 In :ISSIIIk;j" Ili:rl Ilnalllii:rl personuel properly I alflcr and evalnalc Ilic fllfurtu:llinu sullurifttal. IS:Itiell nn Illy filcltlfry uC Ille Irersol,
nr phrsons 1010 n1:In:II;C lllc s1'S'Wili, or Ilulsc persims Ilirecfly rct:ponsibit. fill- J.'ailtt"ring,, Ow int•rrrnladon, IIIc iufornrrlOoll. mil.mli(ted i%, lu (lie hesi
of Illy kuusledge.. anll I,elief,l(1-11c) 3CCIlr:11C, an,l coloplcl,:. I an, ,m'a, r dial flu re .1re sil;r,il'il ;till peuallic.s 1,411• snhnlillinl; l:Ifse irrfut-111:11iolt,
illclullillf 111c possibilily of fines autl flnllrisonnlenr for latowilll; viollilioo:r-"
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Purnih Nundour
FACILITY NAM V
11.1,111,SON COLLECTINCr4�71%1
CER1111 III I'll) LABORA,rolms C 11
(241hSefVC&%liV1
Part ,\: specific Muni(ol-ink Requirellwills
9
RECEIVED 40
OCT 2 0 201b
STORNINVAITR D1sc1k"k1tG'l; 011,11"ALL (S1110)
MONIT(AZING RIPPORT CENTRAL FILES
DWR SECTION
SAMPLES, COLLECTED DURINCCALKNI)AR VKAiz -, Zolk-
(This Illolliforing report shall be received by file Division no filler 111:111 30 days front
(lie 41:11c like t'acilily 1-cceives Ills sallipling resillis I'l-oll) file l"Ibonl(ory.)
C 0 U NTY Lvr!"D,.rv�
PHONE NO. A -Le,,-) S149 31"73
(SIGNATURE OPPERMITTEP11,'OR DEMNEE)
By this sAgitalm-c, I certiry that this report isaceurale
colllplcfC to the hcs( of lily 1(nowledge.
No.
ILI; I
11111F
c011 ve
os,
?
t
MY i, . ,
s 'TS
COD
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mg/L
mg/L
standard
l5ok mfv-
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to
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(40 -5
140
SW 06-6
o Ck
v.
D
Does this 1'ICiiily 1)CO-OL-111 VehiCle tVl,-1 ill 101M Lice. Activilies using more ilmn 55 galloll", cli'liew Illolorod pt-l- 1114)111117 —Yes )(110
(if ves, co 111 p I e I e 11 n rt 11)
Part B: Vehicle IVI.finten-mice Aefivily Nllollillorilll,k Requil-ollelils
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form SWU-247- 1 12608
Page 1 of')

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STORM I:V r-N`I' CRAIUXTERISTICS:
Dates-AMQ b,
Total Event Precipitation (inches):
Event Duration (hours): hey. (only if applicable —see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Maii Service Centel -
Raleigh, North Carolina 27699-1617
"I certify, under penalty of law, that this docnmcnt and all attachments Wel'L prepared nildLr my direction or supervision in accordance with it
system designed to assure that qualified personnel properly gailler 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 raise information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of 1'ermittee) (Date)
CO,QGA14 �,I
Form S W U-247-1 12608
Page 2 or

Pci-mil Numbt.1- NCS(000 0 6
0 1 0
STORN,INVATEAZ DISC11btOGE OUTUALL (SDO)
MONITORING REPORT
DURING CALKNDAR 1IKAR20il—I
(This illorlifol-ing repoll Shall he received by the Division no later 1ham 30 days from
fhe 11111c lite filcilily receives the N'1111111ing reslilk I'l-olti the Inhol-Mory.)
VACILITV NiUVIVA N imp's M
I IECEIVED
PEAZSON COLLECTINGWAMI'L (2,h�Vk%4 W%V%I;Vo
CI 1111F1 1111) I 1 "'11) c T-1 AAR
c2t&�Vo�;" "k 36 "f�ah It 09 2017
Part A: SI?eCilk 14101likWiLit.-,
CENTRAL FILES
DWR SECTION
COUN'I'V,.hLr1z..fi'Sm r4c.
P1f0NCNo. (91q
(SIGNATURE 01, PERMITTEE OR DESIGNEE)
By 1.1lis siglinfilre, I cu'l[KY (hat this rcpnrt is accul-We
colliplelt 11) (lie best of lily knowledge.
Oil 11"111.
N o.-
'S
0
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4
S S
C 01)
'x
Nitrogen 0
'1 7,
PhosOfiorlls,' al
mg/L
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ND
Does lhis 111citily perforni Vehicle Mininleilimcc. Activikes kising more lhan 55 p1lons of motor nil per month'? _yes A no
(i1'vcs' complete Pal-L 13)
Parl B: Vehicle Maintenance Activi(y IVIoniloriliv. Re(plircilleill..;
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I 'orm SWU-247-[12608
Page I c,)C2

1� •
STORM E?V 1,JNT cnA1tAC'I'LRISTICS:
Date Z. A, l
'Total Event Precipitation (inclics): (o C—
Event Duration (flours): (only if applicable — see permit.)
(i f more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (liours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Water Quality
Attn, Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"I certify, under penalty of law, that this document and all attachmeuls were prepared 1111der Iny 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 infornintion, the information submitted is, to the best
of my knowledge and belief, true, accurate, and Complete. I anal 111ya1re that there are significant penalties for submitting Use information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of 11'ermittee) (Date)
L-1
Foam SWU-247-112608
Pattie 2 of 2

QUARTERLY VISUAL. SAMPLING and RAIN FALL AMOUNTS
JAN. 1 TO MARCH 31, APRIL 1 TO JUNE 30,
JULY 1 TO SEPT. 30, OCT. 1 TO DEC. 31
COMPANY: AIRGAS.SPECIALITY GASES -Durham, NC
ADDRESS: 630 United Drive
CITY: Durham, NC 27713
DATE: i S. t G- LOt i
TIME: '- 1)0 SAiy1PLIER: cp�0. 'WL4 .,
OUTFALL NO. _3
NATURE OF DISCHARGE: V-rA_L r .
RAINFALL AMOUNT: {1d s
RAINFALL DURATION: ' , -J.
VISUAL QUALITY: wad
LW
COLOR, ODOR: e_x A QVWW runnctor-
FLOATING OR SETTLED SOLIDS:
t �1
OIL SHEEN:
COMMENTS:
rA
C;ISTORNI))VA T-R!NCAROLINAIQuartVisua!-SIC

UNITED DRIVE
ASPHALT PARKING .
CREE
�LM CNENIiCAL
STORAGE OFFICE
CABRET
1
1
1
WARENIOUSE i
1
1
F
1
1
1 e
'❑
SPILL RESPONSECOUIPM
INOPS- �sORBANTS.
1
I
l
CRAW TO CITY
SWTMIT 11"T
CCO%VMD1
I PLANT ROW
1 TENTED 1NROlCH
TD R
1M000 DDrr
. i
1
rCGwrcD
CONTAINER
STORAGE AREA_7
o
1
LICNtD FEW 1
STATION CMISTIC 1
1
- (cOYEIlEO) 'lull•^^'
TRIUM %ELL
I TRARSFOIMER
vN '' TYPICAL ROOF
R OnAWAGC
I
OUTFALL rGRASS
SWOQ2 N1�\� 7
•.1 C NDER
I CLEARWO
RaOM
`-CONCRETE
rINE1Y CYIlQOi
,11 lfOIAO: AR[A7
II
INDUSTTAL RRAINAGE AREAS
AREA
C TFALL
AREA (ACRES)
PERVIOUS (%)
IMPERVIOUS (%)
TOTAL
SW001
3.3%
96.7%
1,00
IE
SW002- _.
. 0%
100%
0.26
SW003
0%
100%
0.04
1
I
.• •. _ PARKING � '
I'
MATERIAL
STORAGE_INQEX
O
VARIO s GASES I' GAS Mi "T $
IN METAL CYLINDERS
5% sOOUM MYIIROA1oE (55 GAL. OTUM)
I
I
aR, wAsre oIL
2 DUMPSTERS
'
(CARDBOARD
CYCLE, REO.EAR
Ex15TWG DU4.DNG
I OlWs1ER Am S
2400 S.F.
t,RECYO.E ervll
1
LEGEND
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DRAINAGE FLOW DIRECTION
1..--..-_.� COVERED AND INDOOR AREAS
1 I 1 DRANAGE AREA DOUNDRY
L_--_--1
® SPILL RESPONSE NIT LOCATION
DA MAP TAKEN FROM 517E A ORACINO PLAN SHEET C-t
DAIED MAY 17. 1995 1T' ILAKELY DETCN GROUP.
NOTES,
I. COTOIR INTERVAL - 7 FEET
7.TNS MAP IS FOR STORMWATER PERMITTING P4IWOSE! ONLY.
LASS MAP IS NOT A SLAVER', MA ION OF OUTDOOR MATERIALS
AND ACRMTIC5 ARE APPRO:O%ARE.
3. ALL ROOT OWNS ME NOT SHOWN
SCALE: I'- YJ
]0 TO I9 0 OO TO 90
SITE DRAINAGE MAP
NATIONAL WELDERS I
DURHAM, NORTH CAROLINA
AUGUST 2004
WJECT NUMBER DRAWING NO,N159-24 "�=�'�"�/� FIGURE 2

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