NC0005771_Draft Permit_20210420

ROY COOPER
Governor
DIONNE DELLI-GATTI
Secretary
S. DANIEL SMITH
Director
Sheila Johnsen, Environmental Specialist
TransMontaigne Operating Company, LP
1670 Broadway Suite 3100
Denver, CO 80202
Dear Ms. Johnsen:
NORTH CAROLINA
Environmental Quality
April 20, 2021
Subject: Draft NPDES Permit NC0005771
Charlotte/ Paw Creek Terminal # 1
Grade I Physical Chemical WPCS
Mecklenburg County
The Division has reviewed your request to renew the subject permit. Please review this draft carefully to
ensure a thorough understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
1. The facility classification Grade I Physical Chemical Water Pollution Control System (WPCS) was
added to the effluent page.
2. The limit for Benzene was removed.
3. Concurrent sampling is no longer required for annual Acute Toxicity.
4. The Acute Toxicity Monitoring Condition A. (2.) was updated for DWR For AT-1 submission
information.
5. The electronic reporting permit special condition A. (4.) was updated.
6. The permit map was updated.
The NPDES standard conditions (Parts II, III, and IV) that are a part of the permit are not included in
this draft document (cover, map, and Part I). The conditions are the same as in your current permit
except that agency and division names have been updated. The latest version is available at
https://bit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
With this notification, the Division will solicit public comment on this draft permit by publishing a
notice in newspapers having circulation in the general Mecklenburg County area, per EPA requirements.
Please provide your comments, if any, to me at the address below no later than 30 days after
receiving this draft permit. Following the 30-day public comment period, the Division will review all
pertinent comments and take appropriate action prior to issuing a final permit.
NORTH CAROHNAD_E
Department of Environmental Duality
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617
919.707.9000

Mr. Krshka
April 20, 2021
Page 2 of 2
If you have questions concerning the draft, please contact me at 919-707-3618, or via e-mail at
[e-mail].
Sincerely,
Derek Denard, Environmental Specialist
NPDES Compliance and Expedited Permitting
Division of Water Resources, NCDEQ
ec: TransMontaigne Operating Company, LP / Sheila Johnsen [[e-mail]]
DWR/MRO, Corey Basinger [[e-mail]]; Andrew Pitner [[e-mail]];
Wes Bell [[e-mail]]; Edward M Watson [[e-mail]]
Richard Farmer [[e-mail]]
WSS/Aquatic Toxicology Branch, Cindy Moore [[e-mail]]; Zachary T Thomas [[e-mail]]
Wastewater Operator Certification Group ([e-mail])

NPDES Permit NC0005771
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 Carolin rat Statute 43-215.1, other lawful standards
and regulations promulgated and adopted by orth Carolina Environmental Management
Commission, and the Federal Water ollution Control Act, as amended,
TransMontai ne Operating Company, LP
is hereby authorized to discharge wastewater from outfalls located at the
TransMontaigne Charlotte Piedmont Terminal
7615 Old Mount Holly Road, Charlotte
Mecklenburg County
to receiving waters designated as and inflamed tributary to Paw Creek within the Catawba River Basin
in accordance with effluent limitation monitoring requirements, and other conditions set forth in Parts
I, II, IA and IV hereof.
This permit shall become effec
This permit and a 'zation to . arge shall expire at midnight on June 30, 2025.
Signed this day
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

NPDES Permit NC0005771
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 permit 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.
TransMontaigne Operating Company, LP
is hereby authorized to:
1. continue to operate Surface -Water Pollution P , ion facilities for stormwater in proximity to
above -ground storage tanks (ASTs) providing su sulk-s e of petroleum hydrocarbon fuels
in excess of one million gallons, and fuel -truck loan izing
• bermed secondary -containment basins (for ASTs)
• oil -water separator for berms (waste product V. solids recycl d offsite)
• oil -water separator for truck -loading rack (waffle product and s recycled offsite)
• two (2) detention ponds (in series)
• point -source discharge (manty controlled discharge valve - ormally closed)
located at the Trans gne Charlotte Piedmont Terminal, 7615 Old Mount Holly Road, Paw
Creek, northwest of Ch tte, Mecklenburg County, and
1+
2. discharge from said treatment works via Outfall 001, a point designated on the attached map, into an
unnamed tributary to Paw Creek [stream segment 11-124], a waterbody currently classified C in
subbasin 03-08-34 [HUC: 030501011404] within the Catawba River Basin.
Page 2 of 8

NPDES Permit NC0005771
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
OUTFALL 006 [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade I Physical Chemical Water Pollution Control System [15A NCAC 08G .0302]
During the period 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: A
EFFLUENT CHARACTERISTICS
[Parameter Code]
LIMITS
MONITORING REQUIREMENTS1
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow (mgd) 2
50050
Monitor 8UReport
Episodic
Footnote 2
Effluent
Total Suspended Solids (TSS) (mg/L)
C0530
30 mg/L
45 mg/L
Monthly
Grab
Effluent
Oil and Grease (mg/L)
[EPA Method 1664 SGT-HEM]
00556
Monitor & Report
Monthly I
Grab
Effluent
Turbidity (ntu) 3
00070
See Footnote
3 Ab
Monthly
Grab
Effluent
Benzene (µg/L)
3(030
Monitor &'eport
Monthly
Grab
Effluent
Toluene (µg/L)
34010
11 N.
Monthly
Grab
Effluent
Ethyl Benzene (µg/L)
34371
Monitor & Report
Quarterly
Grab
Effluent
Xylene (µg/L)
81551
Monitor & Report
Quarterly
Grab
Effluent
Ethanol (µg/L)
77004
Monitor & Report
Quarterly
Grab
Effluent
Naphthalene (µg/L) 4
‘4696
Monitor & Report
Monthly
Grab
Effluent
Acute Toxicity 5
TAE6C
See Footnote 5
w Annually
Grab
Effluent
Footnotes:
1. The Permittee shall submit Discharge Monitor i Repo ectronically using NC DWR's eDMR application
syste1 . See Condition A. (4.).
2. Flojty shall be monitored with each discharge even' ing periods of no flow, the Permittee shall submit a
signed, monthly Discharge Monitoring port (DMR) indicating "No discharge." Flow may be monitored
using any one of four methods:
a) measure flow continuously (via fl ter, totalizer preferred);
b) calculate flow (see Rational Equatio based on total rainfall per unit
area draining to the outfall [see A. (3.)];
c) estimate flow at 20-minute intervals during the entire discharge
event; or
d) report flow based on discharge pump logs.
3. Turbidity — Effluent shall not cause receiving stream turbidity to exceed 50 NTU. If receiving -stream
background exceeds 50 NTU, the effluent shall not increase background levels. Non-compliance with this
Standard may require additional stream monitoring and a Turbidity Corrective Action Plan (TCAP).
4. Naphthalene - Monitoring requirement applies to facilities that store, or historically stored, diesel or
other heavy fuels on site.
5. Whole Effluent Toxicity (WET) - Acute (Fathead Minnow, 24-hour P/F), Annual [see Section A. (2.)].
Conditions:
• The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
• The Permittee shall discharge no tank solids, tank bottom water, or the rag layer.
• There shall be no direct discharge of tank (or pipe) contents following hydrostatic testing unless
benzene concentration is less than 51 µg/L and toluene concentration is less than 11 µg/L.
Page 3 of 8

NPDES Permit NC0005771
A. (2.) ACUTE TOXICITY MONITORING (ANNUAL)
[15A NCAC 02B .0500 et seq.]
The permittee shall conduct acute toxicity tests on an annual basis using protocols defined as definitive
in EPA Document EPA-821-R-02-012 entitled "Methods for Measuring the Acute Toxicity of Effluents
and Receiving Waters to Freshwater and Marine Organisms." The monitoring shall be performed as a
Fathead Minnow (Pimephales promelas) 24 hour static test. Effluent samples for self -monitoring
purposes must be obtained during representative effluent discharg shall be performed at the
NPDES permitted final effluent discharge below all waste trea ocesses.
The parameter code for Pimephales promelas is TAE6C. All toxicity testing results required as part of
this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it
was performed, using the appropriate parameter code. Additionally, DWR Form AT-1 (original) is to be
sent to the following address:
North Caro ivision of Water Resources
Water Scienc-. tion/Aqu. 'c Toxicology Branch
1621 Mail Servi - ter
• h, NC 2769
Or, results can be sent to the email, AT
ncdenr.
Completed Aquatic Toxicity Test Forms she filed with the Wat- 'ences Section no later than 30
days after the end of the reporting Ieriod for h the report i ade.
4
Test data shall be contilete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine
of the effluent toxicity samN must be measured and reported if chlorine is employed for disinfection of
the waste s
r
Should any test data from either these monitoring requirements or tests performed by the North Carolina
Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival and appropriate environmental controls, shall constitute an invalid test and will
require immediate follow-up testing to be completed no later than the last day of the month following
the month of the initial monitoring.
Page 4 of 8

NPDES Permit NC0005771
A. (3.) FLOW MEASUREMENT RATIONAL [G.S. 143-215.1(b)]
The Rational Equation: Q=KuCIA, where:
Q = flow (peak flow rate (cfs or m3/sec)
Ku = units conversation factor = 1.008 for U.S. standard units (usually
ignored because it is so close to 1), or 0.278 for SI units
C = dimensionless runoff coefficient for the water ed, loosely defined
as the ratio of runoff to rainfall
I = intensity of rainfall taken from the intensity -duration -frequency
curves for the specified design return eriod at the time of
concentration, tc (in/h or mm/h). tc e o ' centration (time
after the beginning of rainfall e when all p. s of the
drainage basin are contributi ► ltaneously to . t the
outlet).
A = area of tributary watershed . or km2)
The rational equation is used to alculate the run s gion, given:
• the runoff coefficient which ac unts for infiltration and other
potential losses in the region,
• the rainfall intensity to the region,
• the time it takes for runoff to travel from the region s upper reaches
to its outlet, and the region's drainage area.
1
Page 5 of 8

NPDES Permit NC0005771
A. (4.) ELECTRONIC REPORTING - DISCHARGE MONITORING REPORTS
[G.S. 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program
reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December
21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.)
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
1. Reporting Requirements [Supersedes Sectio D. (2.) and Section E. (5.) (a)
The permittee shall report discharge monitoring data electronically using the R's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. Lhe eDMR system may be
accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr
IL
If a permittee is Able to use the eDMR system due to a demonstrated hardship or due to the facility
being physically loca an area where less than 10 percent of the households have broadband
access, then a tempora aiver from the NPDES electronic reporting requirements may be granted
and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or
alternative forms approved by the Director. Duplicate signed copies shall be submitted to the
following address: ` P
I
NC DEQ / Division of Water Resources ater Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
See "How to Request a Waiver from Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month following
the issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
Starting on December 21, 2025, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
Page 6 of 8

NPDES Permit NC0005771
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time
of each electronic submission. The permittee should use the EPA's website resources to identify the
initial recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity
(EPA or the state authorized by EPA to implement ' NPDES program) that is the designated entity
for receiving electronic NPDES data [see 40 CF(b)].
EPA plans to establish a website that will als s to the appropriate electronic reporting tool for
each type of electronic submission and for each Instruct' s on how to access and use the
appropriate electronic reporting tool will be availa le as well. rmation on EPA's NPDES
Electronic Reporting Rule is founciat: https://www.federalreg. er.gov/documents/2015/10/22/2015-
24954/national-pollutant-discharge-elimination-system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to
the Division. Requests for temporary electronic reporting waivers must be submitted in writing to
the Division for written approval at least sixty (60) days prior to the date the facility would be
required under this permit to begin submitting monitoring data and reports. The duration of a
tenitporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data
and reports shall be submitted electronically to the Division unless the permittee re -applies for and is
granted a new temporary electronic r'rig waiver by the Division. Approved electronic reporting
waivers are not transferrable. Only pe es with an approved reporting waiver request may
submit monitoring data and reports on paper to the Division for the period that the approved
reporting waiver nest is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on
the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II,
Section B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR
reporting purposes.
Page 7 of 8

NPDES Permit NC0005771
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit
the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make
the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a systsigned to assure that qualified personnel
properly gather and evaluate the information s ed. Based on my inquiry of the person or
persons who manage the system, or those pe ! irectly responsible far gathering the information,
the information submitted is, to the best of my edge and belief true, accurate, and complete. I
am aware that there are significant penalties for 'tting f•. 'nformation, riding the
possibility of fines and imprisonme or knowing va. tons."
5. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring ' . s, including eDMR
submissions. These records or copies shall be maintained for a per . i f at least 3 years from the
date of the report. This period may be extended by request of the Director at any time [40 CFR
122.41].
1
Page 8 of 8

TransMontaigne Operating Company, LP
Charlotte Piedmont Terminal
7615 Old Mount Holly Road, Charlotte 28214
Receiving Stream:
Stream Segment:
Drainage Basin:
Latitude:
State Grid/USGS Quad:
UT to Paw Creek Stream Class: C
11-124 Sub -Basin: 03-08-34
Catawba HUC: 030501011404
36° 16' 37" Longitude: 80° 56' 01"
Mount Island Lake, NC
1 ' ;
\
Copyr ghttO2'041t3,National Geographic Society_i-cubed
North
Scale 1:24,000
NPDES Permit NC0005771
Mecklenburg County