NC0026247_Draft Permit_20220222

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
February 22, 2022
Sheila Johnsen, Environmental Specialist
TransMontaigne Operating Company, L.P.
1670 Broadway Suite 3100
Denver Co, 80202
Subject: Draft NPDES Permit NC0026247
TransMontaigne Operating Company, L.P.
Greensboro Southeast Terminal
Physical Chemical Not Classified WPCS
Guilford County
Dear Ms. Sheila:
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 Physical Chemical Not Classified WPCS was added to the effluent page.
2. A monthly average limit of 300 µg/L and daily maximum limit 300 µg/L were added because data
showed reasonable potential to exceed the water quality standard. The measurement frequency is
changed to monthly.
3. Turbidity limits were removed from the effluent table. The Turbidity water quality standard will be
maintained in the permit as a footnote narrative condition for instream.
4. The following footnote for Naphthalene was removed: Provided that the Permittee can demonstrate
to the Division that its facility does not now, nor has ever, stored diesel fuel or other heavy fuels, it
may petition to remove monitoring for naphthalene.
5. The practical quantitation limits (PQL) footnote was removed. This requirement is covered by a
condition in NPDES Standard Conditions Part II. Section D. (4.).
6. Concurrent sampling with WET testing is no longer required.
7. The Acute WET test condition was updated. See Condition A. (3.).
8. The electronic reporting permit special condition A. (4.) was updated. Footnote 1 for electronic
reporting was updated for Condition A. (1.).
Please note that East Fork Deep River is listed as an impaired waterbody on the North Carolina 303(d)
Impaired Waters List. Addressing impaired waters is a high priority with the Division, and instream data
will continue to be evaluated. If there is noncompliance with permitted effluent limits and stream
impairment can be attributed to your facility, then mitigative measures may be required.
NORTH CAROLINA
Department of Environmental Quality
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

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 Guilford 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. 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: NPDES File [Laserfiche]
TransMontaigne / Sheila Johnsen [[e-mail]]
WSRO / Jenny Graznak [jenny.graznak(nncdenr.gov]; Lon Snider [lon.snidergncdenr.gov]
WSS/Aquatic Toxicology Branch / Zach Thomas [[e-mail]]; Cindy Moore [cindy.a.moore(a ncdenr.gov]
PWS/WSRO / Eric Hudson [eric.hudsongncdenr.gov]
Wastewater Operator Certification Group [Maureen.Kinneygncdenr.gov]

NPDES Permit NC0026247
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 Gene . Statute 215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina ironmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
TransMontaigne Opera ' i g Company, L.P.
is herebyauthorized to c'Tischar e wastewater ' outfalls located at the
g
TransMontaigne — Greensboro Sou
6801 West Market Street, Greensi�r
Guilford County
t Terminal
C 27409
to receiving waters designated as an unnamed tributary (UT) to East Fork Deep River within the Cape
Fear River Basin in accordance with effluent limitations, ronitoring requirements, and other conditions
set forth in Parts I, II, III an c V hereof.
�
This permit 3'hall become effective
This permit and a « zation to d arge shall expire at midnight on August 31, 2026.
Signed this day
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

NPDES Permit NC0026247
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, L.P.
is hereby authorized to:
V
1. continue to operate an existing Surface -Water Pollution Control Syste
to above -ground storage tanks (ASTs) for the surface bulk -storage of pe
excess of one million gallons, and ethanol, utili
stormwater in proximity
hydrocarbon fuels in
• truck loading -rack drains whic1 - ollowed by iWch pumps to the ' . i oleum Contact
Water (PCW) tank
• a PCW tank (contents are hauledf-site for disposal an
• an oil/water separator (currently not in use)
• ethanol rail car off-loading area with lined ditche
pond
• a lined storm ontainment pond [approximately 13U allons] (stormwater from this
pond is routed vity through Outfall 001 via a manually controlled locked valve)
• two secondary con ent dikes for the ASTs (each dike has separate locked valves for
releng accumulate stormwater throih Out 1 001)
• totalizing meter
discharged through Outfall 001)
ed stormwater containment
located at the TransMontaigne Greensboro Southeast Terminal, 6801 West Market Street, Greensboro,
Guilford County, and
2. discharge from said treatri it works via Outfall 001, a location specified on the attached map, into
an unnamed tributary (UT) to East Fork Deep River [stream segment 17-2-(0.3)], a waterbody
currently classified as WS-IV:* within Subbasin 03-06-08 [HUC: 030300030102] of the Cape Fear
River Basin.
Page 2 of 8

NPDES Permit NC0026247
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Physical Chemical Not Classified Water Pollution Control System [15A NCAC 08G .0302]
Beginning on the effective date of the permit and lasting until expi , the Permittee is authorized to
discharge treated stormwater from Outfall 001. Such discharges e limited, monitored and
reported' by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
[PARAMETER CODES]
LIMITS
MONITORING REQUIREMENTSI
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow (MGD) 2
50050
Monitor & Report
Episodic
2
Effluent
Total Suspended Solids (TSS) (mg/L)
C0530
30.0 mg/ .0 mg/td
Monthly
Grab
Effluent
Turbidity (NTU) 3
00070
- Monitor & ort
Monthly
Grab
Effluent
Oil & Grease (mg/L) 4
EPA Method 1664 [SGT-HEM]
00516
. r & Report
Monthly
Grab
Effluent
Total Recoverable Phenolics (µg/L
327301300
µg/L
30(1,µg/L
nthly
Grab
Effluent
Benzene (µg/L)
34030
Monitor &Report
Qu rterly
Grab
Effluent
Toluene (µg/L)
34010
Monitor Report
,Quarterly
Grab
Effluent
Ethyl Benzene (µg/L)
Monitor & Report
Quarterly
Grab
Effluent
Naphthalene (µg/L)
4696
Monitor port
Quarterly
Grab
Effluent
Xylene (µ /L)
Molk Report
Quarterly
Grab
Effluent
MTBE (µg/L
224
Monitor & Report
Quarterly
Grab
Effluent
Acute WET Testin
TGE6C
See Footnote 5
Annually 5
Grab
Effluent
Footnotes:
1. The Permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application
system. See Condition A. (4.).
2. Each discharge event shall be monitored for Flow volume and duration — During periods of no flow, the
Permittee shall submit a signed, monthly Discharge Monitoring Report (DMR) indicating "No discharge."
Flow may be documented using any one of the following four (4) methods:
1) measure flow continuously via weir or flow meter (totalizer preferred);
2) estimate flow at 20-minute intervals during the entire discharge event;
3) report flow based on discharge pump logs; or
4) calculate flow based on total rainfall per unit area draining to the outfall using the
Rational Method [see formula, Section A. (2.)].
3. Turbidity — Effluent turbidity shall not cause receiving -stream turbidity to exceed 50 NTU. If background
turbidity naturally exceeds 50 NTU, the effluent shall not cause background turbidity to increase. Any
Page 3 of 8

NPDES Permit NC0026247
discharge exceeding this permit limit will require sufficient instream sampling (upstream and/or downstream)
to verify compliance (effluent vs. background). [NCAC 02B. 0211(21)]
4. Where possible, the grab sample for Oil & Grease should be skimmed from the water surface of a quiescent
(calm water) zone.
5. If Acute WET -test fails [TGE6C], the Permittee shall test each subsequent discharge event until testing
indicates "pass," after which Quarterly monitoring shall resume in accord with Section A. (3.). If after a
subsequent five (5) consecutive Quarterly events, WET results demonstrate no toxicity (i.e., "pass"), the
Permittee may petition the Division to relax monitoring, as data may warrant.
Conditions:
• The Permittee shall discharge no floating solids or foam.
• Direct discharge of tank solids, tank -bottom water, or the r
• Hydrostatic Tank Testing: The Permittee shall discharge no t
rag -layer; no tank [or pipe] contents, unless Benzeng concentration tests
Toluene concentration tests less than 11 µg/L.
k solids,
ermined.
k bottom -water, no tank
n 1.19 µg/L and
A. (2.) FLOW MEASUREMElLTIONAL [G.S. 143-215.1(b)]
The Rational Method - Determination o Peak Runoff:
[REF: FHWA Urban DYainage Design al, 3.2.
CIA, where:
Q =
ak flow rate in cfs or m3/sec)
Ku = unit conversation factor = 1.008 for .S. standard units (usually
ignored because it is so close to 1), .278 for metric units
dimensionless runoff coefficient for watershed, loosely defined as the
ratio of runoff to rainfall
I = intensity of rainftaken from t intensity -duration frequency curves
for thApecified design,return period at the time of concentration, tc (in/h
or mm/h)'time of conientration (time after beginning rainfall excess
when all portions of the dlainage basin are contributing simultaneously to
utlet flow).�
A = of tributarywatershed (acres or km2)
The rational equa is used to calculate the runoff from a region, given:
• the runoff coefficient (accounts for infiltration losses in the region),
• the rainfall intensity to the region,
• the time for runoff to travel from the region's upper reaches to its outlet, and
• the region's drainage area.
Page 4 of 8

NPDES Permit NC0026247
A. (3.) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)
[15A NCAC 02B .0200 et seq.]
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North
Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A
Single Effluent Concentration" (Revised December 2010, or subsequent versions). The monitoring shall be
performed as a Fathead Minnow (Pimephales promelas) 24-hour static test. The effluent concentration at
which there may be at no time significant acute mortality is 90% (defined as treatment two in the
procedure document). The tests will be performed during the months of January, April, July, and
October. These months signify the first month of each three-month toxicity testing quarter assigned to the
facility. Effluent sampling for this testing must be obtained during representative effluent discharge and
shall be performed at the NPDES permitted final effluedischarge belo all treatment processes.
Should any single quarterly monitoring indicate a failure to meet spe limits, then monthly
monitoring will begin immediately until such time that a single test is pa Upon passing, this
monthly test requirement will revert to quarterly 'n the monthspecified a , ve.
permit
All toxicity testing results required as j t of this ndition ill be entered electronically using the
Division's eDMR system for the montlk in which it was performed, using the parameter code TGE6C.
Additionally, DWR Form AT-2 (original) is to bent to the follo ing address:
sRes
North Carolina Division of Water c es
Water Scienceection/Aquatic Tpxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Or, results can be sent to the email, ATForms.ATBov.
Comple .. oxicity Test Fos shall be filed w the Water Sciences Section no later than 30
days a e end of the reporting perio4for which -the report is made.
Test data s e complete, accurate, inc a 11 supporting chemical/physical measurements and all
concentration . ense data, and be certifie laboratory supervisor and ORC or approved designate
signature.
Total residual chlorin- e effluent/toxicity sample must be measured and reported if chlorine is
employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number, pipe number, county, and the month/year of the report
with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the
Water Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly
test requirement will revert to quarterly in the months specified above. Assessment of toxicity compliance
is based on the toxicity testing quarter, which is the three-month time interval that begins on the first day
Page 5 of 8

NPDES Permit NC0026247
of the month in which toxicity testing is required by this permit and continues until the final day of the
third month.
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.
A. (4.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic vbmittal of all dis• . i itoring reports (DMRs) and program
reports. The final NPDES Electronic geporting Rule was as and became effective on December
21, 2015.
Ir-
NOTE: This special condition supplements wpersedes the follo ections within Part II of this
permit (Standard Conditions or PDES PerrTiits):
• Section B. (11.) Signatory lfequirements
• Section D. (2.)rting
• Section 6.) R ds Retention
• Se • Monitoring Reports 4
1. rtin2 Require [Sup. es Section . (2.) and Section E. (5.) (a)1
The pe - e shall report
Discharge q itoring Repo
Monitoring res
submitted electro
monitoring data and
oring data electronically using the NC DWR's Electronic
MR) i, et application.
tained durin the previous month(s) shall be summarized for each month and
using eD R. The eDMR system allows permitted facilities to enter
bmit DMRs electronically using the internet. The eDMR system may be
accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband
access, then a temporary waiver 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:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
Page 6 of 8

NPDES Permit NC0026247
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
See "How to Request a Waiver from Electronic Reporting" section below.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
reported via the eDMR system no later than the last calendar day of the month following the
completed reporting period. 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 tie 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
The permittee may seek an electroirc reporting waiver e 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 i •fy the initial recipient at the time
of each electronic'submission. The permittee should use the EPA 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 the NPDES program) that is the designated entity
for receiving electronic NPDES data see 40 CFNIF27.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for
each type of electronic submission and forkch state. Instructions on how to access and use the
appropriate electronic reporting tool will be available as well. Information on EPA's NPDES
Electronic Reporting Rule is found at: https://www.federalregister.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
temporary 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
Page 7 of 8

NPDES Permit NC0026247
granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting
waivers are not transferrable. Only permittees 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 request 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. Si . nator Re i uirements Su • lements Section B. 11. b an i ' ersedes Section B.
All eDMRs submitted to the permit issuing authority shall be signe
Section B. (11.)(a) or by a duly authorized representative of that perso
Section B. (11.)(b). A person, and not a position, must be delegated signa
reporting purposes
person described in Part II,
escribed in Part II,
uthority for eDMR
For eDMR submissions, the persoigning and subitting th MR must obtain . DMR user
account and login credentials to access tht-eDMR system. For more information on North
Carolina's eDMR system, registering for eD ' and obtainineDMR user account, please visit
the following web page:
h .://de..nc. ov/about/divisions/water-re
Certification. Any erson subm
the following certifi [40 C
WILL BE ACCEPTS .
DMR using the state's eDMR system shall make
HER STATEMENTS OF CERTIFICATION
"I cert0), der penalty of law, that this documen a all attachments were prepared under my
direction or supervision in accordance with a s'i designed to assure that qualified personnel
prop ather and eva/ate the information submitted. Based on my inquiry of the person or
person manage the system, or th ersons directly responsible for gathering the information,
the infor ion submitted is, to the best y knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information, including the
possibility offines and imprisonment for knowing violations."
5. Records Retention bents Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of 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].
Page 8 of 8

UT to East Fork Deep River
[flows southwest]
TransMontaigne Operating Company, L.P.
Greensboro Southeast Terminal
NPDES Permit NC0026247
6801 West Market Street, Greensboro, NC 27409
Receiving Stream: UT to East Fork Deep River
Stream Segment: 17-2-(03)
River Basin: Cape Fear
County: Guilford
Stream Class: WS-IV:*
Sub -Basin #: 03-06-08
HUC: 030300030102
NC Grid/USGS Quad: C19SW / Guilford, NC