NC0081469_LV-2024-0134_Case_File_20240510

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(0) Colonial Pipeline Company
April 1, 2024
Kevin Fowler, Environmental Specialist
North Carolina Department of Environmental Quality
Water Resources, Water Quality Regional Operations Section
217 West Jones Street
Raleigh, North Carolina 27603
[e-mail]
Response to Notice of Violation & Intent to Assess Civil Penalty (NOV-2024-LV-0135) and Notice
of Deficiency (NOD-2024-LV-0035)
RDA Delivery Facility (NC0081469)
1010 National Guard Drive
Morrisville, Wake County, North Carolina
Dear Mr. Fowler,
Colonial Pipeline Company (CPC) is providing this response to the Notice of Violation & Intent to
Assess Civil Penalty (NOV-2024-LV-0135) issued by the North Carolina (NC) Department of
Environmental Quality (DEQ) Division of Water Resources (the Division) on February 8, 2024 (re-
mailed on March 12, 2024) and the Notice of Deficiency (NOD-2024-LV-0035) issued by the Division on
March 7, 2024 for CPC's Raleigh-Durham Airport (RDA)facility due to exceedances of total suspended
solids (TSS) at outfall 001 in December 2023 and January 2024. Outfall 001 is downstream from the
concrete water management basin located on the eastern side of the RDA facility. As stated in the
Discharge Monitoring Reports (DMRs) for the December 2023 and January 2024 sampling events, the
elevated turbidity and TSS concentrations are due to third-party land clearing and construction on the
adjacent property, which has resulted in sediment-laden water entering the RDA facility's water
management basin. Photo-documentation memorializing the change in volume and quality of
stormwater run-on across the RDA subsequent to the construction activities and the steps taken by
CPC to mitigate the issue are provided below.
Clearing of the property adjacent to the RDA facility began in or around September 2023 in order to
expand an existing parking lot for the Raleigh-Durham Internation Airport. Photo 1 shows an aerial of
the RDA facility and the surrounding area from October 2022, which shows the adjacent property
northeast and east of the facility is forested. Photo 2 shows an aerial from March 2024, which shows
the clearing of the adjacent property northeast and east of the RDA facility. As part of the construction,
a sediment basin was constructed northeast of the RDA facility. The sediment basin discharges
approximately 20 feet from the RDA facility fence line and the drainage flows onto and across the
eastern portion of the RDA facility and exits in the southeast corner of the facility. Photo 3 shows the
sediment pond outfall taken from the RDA facility fence in the northeast corner of the facility. Photo 4
shows what that area looked like in April 2023 prior to the clearing.
Photos 5 and 6 are companion photos of the northeastern side of the RDA facility. Photo 5 was taken
in April 2023 prior to denuding the off-site property, and Photo 6 shows the sediment-laden stormwater
run-on to the RDA facility after a September 2023 rain event. Photos 7 and 8 are before and after
411 Gallimore Dairy Road I Greensboro, North Carolina 127409

Colonial Pipeline Company
photos of the southeastern side of the RDA facility near the water management basin taken in April and
September of 2023, respectively. The photographs show the increase in the amount and turbidity of
the stormwater. The extremely turbid run-on stormwater has continued during precipitation events after
the construction of the sediment basin, as seen in Photos 9 and 10 taken in December 2024.
CPC began taking steps to mitigate the potential of impacted water samples from outfall 001 in
November 2023, prior to the TSS exceedances, by sealing joints in the water management basin that
were a potential pathway for the accumulated, turbid stormwater to enter the basin. Additional
mitigation efforts were performed in February 2024, which included the following:
• Installation of two rows of silt fence along the northeastern fence line, downstream of the offsite
sediment basin discharge point.
• Installation of two rows of silt fence and hay bails upstream of the water management basin.
• Grading activities to allow stormwater to flow around the water management basin and offsite
to reduce the accumulation and ponding of water offsite.
Photographs of these site improvements are shown in Photos 11 and 12.
As described above and shown in the photographs included, offsite activities have resulted in increased
stormwater flow onto the eastern portion of the RDA facility, with the pond discharge and run-on sheet
stormwater being extremely turbid. CPC has taken steps to mitigate the increased flow and turbidity
but we anticipate continued TSS exceedances as long as construction activities continue on the
adjacent property and the sediment basin and sheet flow from the adjacent property continue to
discharge stormwater directly across the RDA facility.
CPC requests that the Division rescind the NOV and NOD and not issue civil penalties for the
December 2023 and January 2024 TSS exceedances since third party, offsite activities are causing the
exceedances at outfall 001. CPC also requests the Division not enforce the TSS limits of 30.0
milligrams per liter (mg/L) monthly average and the 45.0 mg/L daily maximum while third party, offsite
activities continue to discharge turbid stormwater directly across the RDA facility. CPC appreciates the
opportunity to provide the Division a response to the NOV. If you have any questions or would like to
discuss, please contact Dusty Reedy at 678-213-7365.
Cordially,
Colonial Pipeline Company
.��e-P-7ox 0 do
David "Dusty" Y. Reedy II Kyle D. Boyan
Environmental Specialist Manager, Operations
Attachments: Photo Log
Page 12

0 Colonial Pipeline Company
Cc: John Wyatt, Manager, Southeast Environmental Programs, CPC, [e-mail]
Stephen Anderson, Right of Way Inspector II, CPC, [e-mail]
Michael Pfeifer, Senior Project Manager— Environmental, S&ME, [e-mail]
Page 13

Colonial Pipeline Company
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Photo 1: Aerial view from October 2022 of the RDA facility and the surrounding area from Google Earth. Of
particular interest is the forested area northeast and east of the RDA facility.
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Photo 2: Aerial view from March 2024 of the RDA facility and the surrounding area from Google Earth. Of
particular interest is the cleared area northeast and east of the RDA facility.
Page 14

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Photo 5: View of eastern side of the facility looking north taken on April 12, 2023 after a precipitation event.
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Photo 6: View of eastern side of the facility looking northeast taken on September 27, 2023 after a precipitation
event.
Page 16

Colonial Pipeline Company
Photo 7: View of eastern side of the facility looking south taken on April 12, 2023 after a precipitation event.
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Photo 8: View of eastern side of the facility looking south taken on September 27, 2023 after a precipitation
event.
Page 17

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• . of •- of •• • north taken on •er 11, 2023 afterprecipitation
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PhotoF of eastern side . - facility looking - 1 precipitation

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Photo of •- of •• • north taken on -•ruary 21, 2024 showing the installationof
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Photo of •- of •• • south taken on -•ruary 21, 2024 showing the installationof
two rows of silt fence and hay bails and improved grading.
Page 9

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ROY COOPER
Gmernor
ELIZABETH S.BISER .a,r"" • -
'''�nr.,w.a►"tip"
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
Certified Mail # 7020 3160 0000 2219 3679
Return Receipt Requested
February 8, 2024
Angela Kolar
Colonial Pipeline Company
PO Box 1624
Alpharetta, GA 30009-9934
SUBJECT: NOTICE OF VIOLATION & INTENT TO ASSESS CIVIL PENALTY
Tracking Number: NOV-2024-LV-0135
Permit No. NCO081469
RDU Delivery Facility
Wake County
Dear Permittee:
A review of the December 2023 Discharge Monitoring Report (DMR) for the subject facility revealed the
violation(s) indicated below:
Limit Exceedance Violation(s):
Sample Limit Reported
Location Parameter Date Value Value Type of Violation
001 Effluent Solids, Total Suspended - 12/18/2023 45 116 Daily Maximum Exceeded
Concentration (C0530)
001 Effluent Solids, Total Suspended - 12/31/2023 30 116 Monthly Average Exceeded
Concentration (CO530)
A Notice of Violation/Intent to Issue Civil Penalty is being issued for the noted violation of North Carolina General
Statute (G.S.) 143-215.1 and the facility's NPDES WW Permit. Pursuant to G.S. 143-215.6A, a civil penalty of
not more than twenty-five thousand dollars ($25,000.00) may be assessed against any person who violates or
fails to act in accordance with the terms, conditions, or requirements of any permit issued pursuant to G.S.
143-215.1.
= NnrtlN'ardimrtkpntnrcrt of to.vravnrrdal Quaily!tAish+o nl K.rlrr Rr,o:rrr t•c
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If you wish to provide additional information regarding the noted violation, request technical assistance, or
discuss overall compliance please respond in writing within ten (10) business days after receipt of this Notice. A
review of your response will be considered along with any information provided on the submitted Monitoring
Report(s). You will then be notified of any civil penalties that may be assessed regarding the violations. If no
response is received in this Office within the 10-day period, a civil penalty assessment may be
prepared.
Remedial actions should have already been taken to correct this problem and prevent further occurrences in the
future. The Division of Water Resources may pursue enforcement action for this and any additional violations of
State law. If the violations are of a continuing nature, not related to operation and/or maintenance problems,
and you anticipate remedial construction activities, then you may wish to consider applying for a Special Order by
Consent.
Reminder: Pursuant to Permit Condition 6 in Section E. the Permittee is required to verbally notify the Regional
Office as soon as possible, not to exceed 24 hours, from first knowledge of any non-compliance at
the facility including limit violations, bypasses of, or failure of a treatment unit. A written report may
be required within 5 days if directed by Division staff. Prior notice should be given for anticipated or
potential problems due to planned maintenance activities, taking units off-line, etc.
If you have any questions concerning this matter or to apply for an SOC, please contact Kevin Fowler of the
Raleigh Regional Office at 919-791-4200.
Sincerely,
DocuSigned by:
Ucttn�t SSa, f. kala ALI 6r
82918EBAB32144F
Michael Hall, Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources, NCDEQ
Cc: Laserfische
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ET CERTIFIED , .
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ECEIPT
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Go:erns' I m CatG%Gq r.Su I Fee "r
ELIZAbETH S.BISER IM.l0% a= ru r,a b"ry -$
$1'CrPtt11}' f�UIW��• � (,IRoRr;t 7iu�ro1p14Wd:0yA�Wr,KM7/a�aa,lopmiL'dtel
RICHARD E. ROGERS.JR. NORTH CAROLINA `---
Dlrcetcr E-rlviranmental ualit Cicme«,rra"rlasnececfO�-�,Y s~ rk
Q Y 7ao:.tt::cju;wonali:uo
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IT' KYLE DOYAN
I-•%[ GAEENSBOAO OPERATIONS MGR
Certified Mail # 7017 0190 0000 2466 0469 d GRJ411 GNUIMORt CA 1409OAU
GREENSe0R0,NC 274p9
Return_ Receipt Requested WU REMAIL-NOV&INFTO ASS CIVIL PNLTY/NOV-
14CM81469/RDU DELIVERY FAC11trY/WAKE 2024 LV-013S
61"O"t'a 7017019000ee24860469 M 031)2/2024 --
March 1211 2024
Kyle Boyars
Greensboro Operations Manager
411 Gallimore Dairy Road
Greensboro, NC 27409
SUBJECT: RE-MAILING NOTICE OF VIOLATION &INTENT TO ASSESS CIVIL PENALTY
ASSOCIATED WITH CERTIFIED RECEIPT # 7020 3160 0000 2219 3679
Tracking Number: NOV-2024-LV-0135
NPDES Permit No, NCO081469
RDU Delivery Facility
Wake County
Deal Permittee:
The subject document was returned to this office as undeliverable when attempted to send to permit
owner. Follow up with staff at RDU Delivery Facility Indicated to change recipient to you. This is the
third attempt to deliver the subject Notice of Violation.
I COMPLErE THIS SECTION ON DELIVERY
SENDER: COMPLETE THIS SECTION
• Complete items 1,2,and 3• A. Signature
❑Agent
■ Print your name and address on the reverse X p Addressee
so that we can return the card to you, dntad Na"1e) fT3 e f livery
• Attach this card to the back of the ma'.Ipiece, s• Received by(P �j -
or on the front if space permits.
i — — D. Is delivery address different from Item i? ©Yes
KYLE BOYAN If YES,enter delivery address below: [3 No
GAEENSKORO OPERATIONS MGR
411 GALL,MORE DAIRY ROAD
GR£ENSROKO,NC 27409
Wrl:REMAIL-NOV&INT TO ASS CIVIL PNL7Y/NOV.2024.1 V-D135
NC0081469/ADU DELIVERY FACILITY/WAKC
10110190000024860469 W.03/2212024 J
!'I lIIII'I�I��111II it tl II I llllll II III IIIIII III \ �SW °P��te°° m Adult Slgroturo Restricted Delivery O Fiealstered Mal Restrict,
[Ti9590 9402 3415 7227 6644 56 �Moen Road pem,Dry Dfz1g.
otJlYmeryRecefatlor
Collect on Delivery rchmxilse T
O Col;ect 0n Del very ResUtcted Deliverynaturo ConilRnatlonD'� 2. Article Number(Transfer from service label) ture ConlUrnaUon
7017 0119 0 0000 2486 0 4 6 9 lestricted Dellvery Resutctod DeUvory
rinmastic Return Recelo'

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Certified Mail # 7020 3160 0000 2219 3679
Return Receipt Requested
February 8, 2021
Angela Kolar
Colonial Pipeline Company
PO Box 1624
Alpharetta, GA 30009-9934
SUBJECT: NOTICE OF VIOLATION & INTENT TO ASSESS CIVIL PENALTY
Tracking Number: NOV-2024-LV-0135
Permit No. NCO081469
RDU Delivery Facility
Wake County
Dear Perrnittee:
A review of the December 2023 Discharge Monitoring Report (DMR) for the subject facility revealed the
violation(s) indicated below:
Limit Exceedance Violation(s):
Sample Limit Reported
Location Parameter Date Value Value Type of Violation
001 Effkent Solids, Total Suspev if d 12/18/2023 15 116 Daily Maximum Exceeded
Concentration (C0530)
001 Effluent Solids, Total Suspended - 12 31/2023 30 116 Monthly Average Exceeded
Concentration (C0530)
A Notice of Violation/Intent to Issue Civil Penalty is being issued for the noted violation of North Carolina General
Statute (G.S.) 143-215.1 and the facility's NPDES WW Permit. Pursuant to G.S. 143-21S.6A, a civil penalty of
not more than twenty-five thousand dollars ($25,000.00) may be assessed against any person who violates or
fails to act In accordance with the terms, conditions, or requirements of any permit Issued pursuant to G.S.
143-215.1.

DocuSign Lnvelope 10 0566011 i-3A06-4D9A-9B06-3E1507u55.06
If you wish to provide additional information regarding the noted violation, request technical assistance, or
discuss overall compliance please respond in writing within ten (10) business days after receipt of this Notice. A
review of your response will be considered along with any information provided on the submitted Monitoring
Report(s). You will then be notified of any civil penalties that may be assessed regarding the violations. If no
response is received in this Office within the 10-day period, a civil penalty assessment may be
prepared.
Remedial actions should have already been taken to connect this problem and prevent further occurrences in the
future. The Division of Water Resources way pursue enforceme:it action for this and any additional violations of
State law. If the violations are or a continuing nature, not related to operation and/or maintenance problems,
and you anticipate remedial construction activities, then you may wish to consider applying for a Special Order by
Consent.
Reminder. Pursuant to Permit Condition 6 in Section E, the Permittee ;s required to verbally notify the Regional
Office as soon as possible, not to exceed 24 hours, from first knowledge of any non-compliance at
the facility including limit violations, bypasses of, or failure of a treatment unit. A written report may
be required within 5 days if directed by Division staff. Prior notice should be given for anticipated or
potential problems due to planned maintenance activities, taking units off-line, etc.
If you have any questions concerning this matter or to apply for an 50C, please contact Kevin Fowler of the
Raleigh Regional Office at 919-791-4200.
Sincerely,
Uc c.iS.nr:il by
Michael Hall, Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources, NCDCQ
Cc: Laserfische

NPDES PERMIT NO.:NCO081469 PERMIT VERSION:6.0 PERMIT STATUS:Active
FACILITY NAME:RDU Delivery Facility CLASS:PC-1 COUNTY:Wake
OWNER NAME:Colonial Pipeline Company ORC:Stephen M Anderson ORC CERT NUMBER:988377
GRADE:PC-1 ORC HAS CHANGED:No
eDMR PERIOD: 12-2023(December2023) VERSION: 1.0 STATUS:Submitted
SAMPLING LOCATION: EFFLUENT DISCHARGE NO.: 001 NO DISCHARGE*: NO
s0050 C0530 76410 34030 API T,%FAC 22417 346% m552
s
e` Once er Monthly Senli-annual) MonthlyMondy Annual) MonIM M01111 NI �i y
j Gslimate (➢mb Crab Grab Grab Comb Cnb C>rBb
0' u FLOW TSS-Come %OnA I, BENZENE ETHVLBE.N }T111>24AC 31TBE NAATHALL ull�r�&tiE
140 d-k Iln 24H slob ur, vrem an d ra 1 Yes-I No.O owl 011A perccni a u d T
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\lonlhl�av<r.ar I_i,ell: 30
\len:611'Areraae: 0.2223 116 12.3 13,03 0 10
Oally 6larimmm• 0.2223 116 12.3 3.03 0 10 0
l3aa3\1lalmmtr 0.2223 116 12.7 3.03 1 10 0 0
• *No Reporting Reason:ENFRUSE No Flow-Reuse/Recycle; ENVWTHR-No Visitation-Adverse Weather; NOFLOW-No Flow; HOLIDAY=No Visitation-Hohday
Discharge Monitoring Report-Copy Of Record(COR_NC0081469_Ver_1.0_12_2023.pdf)

NPDES PERMIT NO.:NCO081469 PERMIT VERSION:6 0 PERMIT STATUS:Active
FACILITY NAME:RDU Delivery Facility CLASS:PC-I COUNTY:Wake
OWNER NAME:Colonial Pipeline Company ORC:Stephen M Anderson ORC CERT NUMBER:988377
GRADE:PC-1 ORC HAS CHANGED:No
eMNIR PERIOD: 12-2023(December 2023) VERSION: 1.0 STATUS:Submitted
SAMPLING LOCATION: EFFLUENT DISCHARGE NO.: 001 NO DISCHARGE*: NO (Continue)
32730 34010 ew?o 111551
� 6 N
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- E Momhly Mon1hly Quarterl) Monthly
g v 3 o y Grab Gra Grab Grab
PREN,TR IOLUENE 1UH8111T1' XYLEME
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No Reporting Reason ENFRUSE- No Floe-Reuse/Recyelr, ENVWTHR No Visitation Adverse 14-ealher- NOFLOW-No Flow. HOLIDAY-No Visitation-Holiday
Discharge Monitoring Report-Copy Of Record(COR_NC0081469 Ver 1.0 12_2023.pdf)

NPDES PERMIT NO.:NCO081469 PERMIT VERSION:6.0 PERMIT STATUS:Active
FACILITY NAME:RDU Delivery Facility CLASS:PC I COUNTY:Wake
OWNER NAME:Colonial Pipclmc Company ORC:Stcphen M Anderson ORC CERT NUMBER:988377
GRADE:PC-I ORC HAS CHANGED:No
eD1bIR PERIOD: 12-2023(December 2023) VERSION: 1.0 STATUS:Submitted
COMPLIANCE STATUS:Compliant CONTACT PHONE#:[phone] SUBMISSION DATE:01'25 2024
Electronically Certified by Gary Simcox on 2024-01-25 08 41.22.871
ORC Certifier Signature : Gary Simcox Phone # : 3 3 6 - 3 3 9 - 2 4 2 5 Date
1 certify that this report is accurate and complete to the best of my knowledge.
The permittee shall report to the Director or the appropriate Regional Office any noncompliance that potentially threatens public 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 be made as required by part 11 E 6 of the
NPDES permit.
Electronically Signed by Kyle Boyan on 2024-01-25 14:13:29.403
Permittee/S►tbmiIter Signature : * * * Kyle B o y a n Phone # : 336-662 - 7236 Date
Permittee Address: 1010 National Guard Dr Raleigh NC 27605 Pen-nit Expiration Date:03/31/2028
1 certify,under penalty of law,that this document and all attachments were prepared under my direction or supervision in accordance with a system designed
to assure that qualified personnel properly gather and evaluate the information submitted.Based on my inquiry of the person or persons who managed 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.
CERTIFIED LABORATORIES
LAB NAME:Pate National
CERTIFIED LAB#:41
PERSON(s)COLLECTING SAMPLES:Chelsea Parra
PARAMETER CODES
Parameter Code assistance may be obtained by visiting https:/deq.nc.govr'abouttdivisions'water-resources edmr+user-documentation
FOOTNOTES
Use only units of measurement designated in the reporting facility's NPDES permit for reporting data.
*No Flow/Discharge From Site:YES indicates that No Flow'Discharge occurred and,as a result,no data is reported for any parameter on the DMR for the
entire monitoring period.
**ORC on Site?:ORC must visit facility and document visitation of facility as required per 15A NCAC 8G.0204,
***Signature of Pemtittee:If signed by other than the permittee,then delegation of the signatory authority must be on file with the state per 15A NCAC 2B
.0506(b)(2)(D).
Discharge Monitoring Report-Copy Of Record(COR_NC0081469_Ver_1.0_12_2023.pdf)

NPDES PERMIT NO.:NC008 i469 PERMIT VERSION:6.0 PERMIT STATUS:Active
FACILITY NAME:RDU Delivery Facility CLASS:PC-1 COUNTY:Wake
OWNER NAME:Colonial Pipchnc Company ORC:Stephen M Anderson ORC CERT NUMBER:988377
GRADE:PC-I ORC HAS CHANGED:No
eDMR PERIOD: 12-2023(December 2023) VERSION: 1.0 STATUS:Submitted
Report Comments:
The elevated turbidity and TSS results for outfall 001 are due to construction on the adjacent property resulting in sediment laden storm water entering the CPC facility's waste
water basin. CPC is evaluating measures to resolve this situation.

NPDES PERMIT NO.:NC0081469 PERMIT VERSION:6.0 PERMIT STATUS.Active
FACILITY NAME:RDU Delivery Facility CLASS:PC-I COUNTY:Wake
OWNER NAME:Colonial Pipeline Company ORC:Stephen M Anderson ORC CERT NUMBER:988377
GRADE:PC-I ORC HAS CHANGED:No
eDMR PERIOD: 12-2023(December 2023) VERSION: 1.0 STATUS:Submitted
Outfall 001-Effluent Comments:
The elevated turbidity and TSS results for outfall 001 are due to construction on the adjacent property resulting in sediment laden storm water entering the CPC facility's waste
water basin. CPC is evaluating measures to resolve this situation.

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DENR/DWR
EXPEDITED FACT SHEET - NPDES PERMIT DEVELOPMENT
NPDES Permit: NCO081469
2023 Renewal
This form must be completed by Permit Writers for all expedited permits which do not require full Fact Sheets.
Expedited permits are generally simple 100%domestics (e.g.,schools,mobile home parks, etc.) that can be
administratively renewed with minor changes,but can include facilities with more complex issues (Special
Conditions, 303(d) listed water,toxicity testing, instream monitoring,compliance concerns).
Facili and Stream Information
Applicant Facility Name: Colonial Pipeline Company/ RDU Delivery Facility
Applicant Address: 411 Gallimore Dairy Road, Greensboro, NC
Facility Address: 1010 National Guard Road, Raleigh, NC
Facility Class Permit Status: Grade I - Physical Chemical WPCS Renewal
Permitted Flow[as built] Not Limited Tvve of Waste 10% Ind. 90%SW
Receiving Stream UT to Crabtree Creek Stream Class ID B; NSW 27-33- 3.5
River Basin Neuse Subbasin 03-04-02
HUC 030202010801 USGS Too Ca D23SE
7 10 Sum Win cfs 0 0 1 30 2 cfs 0
Avg. Stream Flow cfs 0 IWC % S/w[as-hufltl 100
County Wake Regional Office RRO
Basic Information for Expedited Permit Renewal
Permit Writer/ Date Bradley Bennett/June 23,2023 upd,aud August 28,zues
Does permit need daily max NH3 limits? No
Does permit need TRC limits/language? No
Does permit have toxicity testing? Yes
Does permit have Special Conditions? Yes-Acute Toxicity, Rational Method and 625.1
Monitoring&Reporting
Does permit have instream monitoring? No
Stream on 303 d List?For w arameter? Only state-wide mercury
Any compliance concerns? None
Anv modifications since lastpermit? None noted in the application
New expiration date: March 31, 2028
FACILITY OVERVIEW:
The facility distributes refined petroleum products (jet fuel) through a pipeline and one onsite storage tank.
The facility has an oil/water separator that collects drainage from the pipeline and appurtenances and then
flows to a retention pond. Other onsite drainage flows directly to the retention pond. The pond discharges
periodically. Flows associated with the system are mainly from stormwater but may also contain spills,
washdown slab water,hydrostatic test water and prover loop calibration water.
Facility treatment system components consist of:
• Underdrain system that collects stormwater,prover loop calibration water,
slab washdown water, tank and pipeline hydrotest water
• Oil/water separator
• Retention pond

Permit NCO081469
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions of North Carolina General Statute 143-215.I, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Colonial Pipeline Company, LP
is hereby authorized to discharge wastewater from outfalls located at the
RDU Delivery Facility
1010 National Guard Road, Raleigh
Wake County
to receiving waters designated as an unnamed tributary (UT) to Crabtree Creek within the Neuse River
Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts 1, 11, III and 1V hereof.
This permit shall become effective october 1, 2023
This permit and authorization to discharge shall expire at midnight on March 31, 2028.
11 the pernrtince rntendc to at the larililr heyond the tern)uJ this permit.a rencr+al
apphccrrronmust he crrhrrutted no later than Octoher 3, 2027(180 dtrvc before the eyiralion olthis peruut,
Signed this day August 29, 2023
DocuSigned by:
8328B440EK134A1...
Richard E. Rogers, Jr.
Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page I of 14

Permit NCO081469
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this issuance, any previously issued pen-nit bearing this number is no longer effective.
Therefore, the exclusive authority to operate and discharge from this facility arises under the permit
conditions, requirements, terms, and provisions described herein.
Colonial Pipeline Company, LP
is hereby authorized to:
1. Continue to operate a Surface-Water Pollution Control System located at 1010 National Guard
Road, Raleigh, N.C., Wake County, for stormwater and wastewater in proximity to surface
piping and appurtenant equipment containing petroleum fuel hydrocarbons consisting of
• Underdrain system that collects stormwater, prover loop calibration
water,slab washdown water,tank and pipeline hydrotest water
• Oil/water separator
• Retention pond
2. Discharge from said treatment works via Outfall 001, located on the attached map, into an
unnamed tributary to Crabtree Creek [stream segment 27-33-(3.5)], a waterbody currently
classified B; NSW within Subbasin 03-04-02, [HUC:030202010801] of the Neuse River Basin.
Page 2 of 14

Permit NCO081469
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B.0400 et seq., 15A NCAC 02B.0500 et seq.]
Grade I Physical Chemical WPCS [15A NCAC 08G .0306]
Beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge
treated stormwater from Outfall 001. Such discharges shall be limited, monitored, and reported' by the Permittee
as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS Monthly Daily Measurement Sample Sample
(cDMR Codes) Average Maximum Frequenc3 Type Location
Flow 50050 Episodic Estimate Effluent
Total Suspended Solids m L) CO530 30.0 45.0 Monthly Grab Effluent
Oil and Grease, EPA Method 1664 00552 Monthly Grab Fffluent
SGT-HEM nt .,L
Benzene L ' 34030 Monthly Grab Effluent
Toluene(pg 1_);•s 34010 I t " 1 1 8 Monthly Grab Effluent
Eth lbenzene(r L)° 34371 Monthly Grab Effluent
Xylene(11g/1.)-i 81551 Monthly Grab Effluent
Naphthalene Uig L " 34696 121 121 Monthly Grab Effluent
Total Recoverable Phenolics' 32730 Monthly Grab Effluent
MTBE4 22417 Monthly Grab Effluent
Turbidity in L)` 00070 Quarterly Grab Effluent
EPA Method 625.11 76028 Semi-Annual Grab Effluent
Acute WET Testing 7 T,4E6C Annual Grab Effluent
Footnotes:
1. The Permittee shall submit Monthly Discharge Monitoring Reports(DMRs) electronically utilizing the
Division's Electronic Discharge Monitoring Reporting(cDMR) System [section A. (6.)].
2. Flow During periods of no flow,the Permittee shall submit a monthly Discharge Monitoring Report(DMR)
indicating"No discharge." Flow shall be monitored at each discharge and may be monitored in one of four ways:
a. measure flow continuously;
b. Rational Mellon--calculate flow [sec Rational Equation Section A. (3.)]
based on total rainfall per area including built-on area draining to the outfall:
c. estimate flow at 20-minute intervals during the entire discharge event;or
d. report flow based on discharge pump logs.
3. Oil and Grease Where possible, the grab sample for oil and grease should be skimmed from the surface of
a quiescent(calm water)zone.
4. Samples for this analyte shall be collected concurrently with WET-Test sampling,appropriate to frequency.
5. Effluent shall not cause receiving stream turbidity to exceed 50 NTU. If receiving stream background turbidity
exceeds 50 NTU,effluent shall not cause this background value to increase.
6. See Section A.(4.) for additional monitoring and reporting requirements for EPA Methods 625.1.
7. Whole Effluent Toxicity(WET)Testing Acute Annual 1k'LT testing wdl continue at this frequency provided that the
Permiuce maintains WET test results show mg"pass"[or LC50% 100] for each annual dent." If WLT-test results shoe
"fail,"the sampling frequency shall immediately revert to Ouarlerli in accord with Section A.(2.).and the f enntitee x ill
not regain eligibility for Annual testing frequency except after five(5)consecutive quarters showing"Pass" WFT testing
to be preformed concurrently with parameters in footnote 4 above.
R. Permit Limits for Toluene and naphthalene will not be effective for this permit cycle,but monitoring"ill continue to
be required. Permittee shall meet the Schedule of Compliance outlined in Section A.(5).
Conditions:
1. The Permittee shall discharge no floating solids or foam.
2. The Permittee shall discharge no tank or pipe solids,bottom water,or rag layer.
3. Following hydrostatic tank testing,the Permittee shall discharge no tank(or pipe)contents with
concentrations of benzene 1.19 µg L or toluene I I µg L.
Page 3 of 14

Aviation Parkway
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Discharge Point
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Crabtree Creek
Colonial Pipeline Company Facility
RDU Delivery Facility Location
Receiving Stream: UT to Crabtree Creek Stream Class: B;NSW
River Basin: Neuse -Basin: 03-04.02 (NOT TO SCALE)
Outfall Latitude: 35`51'IW Outfall Longitude: 78 47'38"
Stream Segment 27-33-(3.5) HUC#: 030202010801
Grid ad: D25SE/Cary County: Wake NORTH IF NPDES Permit NCO081469
Page 14 of 14