NC0074705_Draft Permit_20200506

ROY COOPER i c:
Governor _.
MICHAEL S.REGAN
Secretary
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
May 06,2020
Mr. Kyle Krshka
Director of Operations
Magellan Terminals Holdings
7145 Old Mt Holly Rd
Charlotte,NC 28214
Subject: DRAFT NPDES PERMIT NC0074705
Charlotte 1 Terminal
Grade I Physical Chemical WPCS
[15A NCAC 08G .0306]
Mecklenburg County
Dear Mr. Krshka:
Enclosed with this letter is a copy of the draft permit for your facility. Please review the draft very carefully
to ensure thorough understanding of the conditions and requirements it contains. Your permit is among
several in the Catawba River Basin that the Division has targeted for expedited renewal.
g
This draft contains the following changes from the existing permit:
• The language in section A. (4.) has been updated to be consistent with the finalization of
federal requirements for electronic reporting.
• Toxicity reporting requirements have been updated in A. (2.) to include guidance for
electronic submission of toxicity results.
• Previously, footnote 4 of Section A. (1.)required toxicity tests to be collected concurrent
with BTEX and Naphthalene samples. Concurrent sampling is no longer a DWR
requirement. This footnote has been removed.
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. 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 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 via email at [[e-mail]] or call 919-707-9125.
Sincerely, "-jar_
.,,i.e.3
Emily DelDuco
Environmental Specialist II
NPDES Program
ec: NPDES files
Mooresville Regional Office
DEQ North Carolina Department of Environmental Quality I Division of Water Resources
•;) 512 North Salisbury Street ( 1617 Mall Service Center I Raleigh.North Carolina 27699-1617
°+M�.. ^--i.aro\ /°'" 919.707.9000

Permit NC0074705
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions 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,
Magellan Terminals Holdings, L.P.
is hereby authorized to discharge wastewater from outfalls located at the
Magellan Terminals Holdings, L.P.
Charlotte I Terminal
7145 Old Mount Holly Road, Charlotte 28214
Mecklenburg County
to receiving waters designated as an unnamed tributary to Paw Creek in the Catawba River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II,
III and IV hereof.
This permit shall become effective xxx
This permit and authorization to discharge shall expire at midnight on June 30, 2020.
Signed this day xxx
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Permit NC0074705
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.
Magellan Terminals Holdings, L.P.
is hereby authorized:
1. continue to operate a Surface-Water Pollution Prevention System for stormwater/city water in
proximity to above-ground storage tanks(ASTs), surface bulk-storage in excess of one million
gallons of petroleum hydrocarbon fuels and ethanol, and fuel-truck loading racks, utilizing
• oil/water separator(truck-loading rack)
• carbon filter(truck-loading rack)
• wastewater tank(truck-loading rack)
• diked areas(secondary containment for ASTs) with discharge valves(hand-operated, normally
closed) discharging stormwater/city water used for washing and/or hydrostatic testing
• ethanol offloading facilities with automated drainage-containment system
located at the Charlotte 1 Terminal, 7145 Old Mount Holly Road, Charlotte 28214, Mecklenburg County,
and
2. to discharge from said treatment facility through Outfall 001 at a specified location(see attached
map) into an unnamed tributary to Paw Creek [stream segment 11-124], currently classified C
waters within subbasin 03-08-34 [HUC: 030501011404], in the Catawba River Basin.
Page 2 of 7

Permit NC0074705
Part 1
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade 1 Physical Chemical WPCS [15A NCAC 08G .0306]
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:
1
EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS
[Parameter Codes] Monthly Daily Measurement Sample Sample
Average Maximum Frequency Type Location
[50050] Flow 2 Episodic 2 Effluent
[C0530] Total Suspended Solids 30.0 mg/L 45.0 mgiL Monthly Grab Effluent
[00556]Oil and Grease(mg/L) Monthly Grab Effluent
[EPA Method 1664 SGT-HEM]
[00070] Turbidity 3(mg/L) 50 NTU Monthly Grab Effluent
[34030] Benzene (µg/L) Monthly Grab Effluent
[34010] Toluene (µg/L) Monthly Grab Effluent
[34371] Ethyl Benzene (µg/L) Monthly Grab Effluent
[81551] Xylene (µg/L) Monthly Grab Effluent
[34696] Naphthalene (µg/L) Monthly Grab Effluent
[TAE6C] Acute Toxicity 4 Annually Grab Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR application
system[see A.(4.)].
2. Flow shall be monitored with each discharge event—During periods of no flow,the
Permittee shall submit a signed, monthly Discharge Monitoring Report(DMR)indicating
"No discharge."Flow may be monitored using any one of four methods:
a) measure flow continuously(via flow meter,totalizer preferred);
b) calculate flow(see Rational Equation)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. Acute Toxicity(Fathead Minnow,24-hour),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 tank rag layer.
• Following hydrostatic tank or pipe testing,the Permittee shall discharge no wastes containing benzene
concentrations greater than 74.1 µg/L,or toluene concentrations greater than 11 µg/L.
Page 3 of 7

Permit NC0074705
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 discharge and shall be performed at the NPDES
permitted final effluent discharge below all waste treatment processes.
The parameter code for Pimephales promelas is TAE6C. All toxicity testing required as part of this
permit will be entered electronically using the Division's eDMR system 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:
Attention:North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1623 Mail Service Center
Raleigh,North Carolina 27699-1623
Or, results can be sent to the email, [e-mail].
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete 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 sample must be measured and reported if chlorine is employed for disinfection of
the waste stream.
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 7

Permit NC0074705
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 watershed, 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 period at the time of
concentration, tc(in/h or mm/h). tc=time of concentration(time
after the beginning of rainfall excess when all portions of the
drainage basin are contributing simultaneously to flow at the outlet).
A= area of tributary watershed (acres or km2)
The rational equation is used to calculate the runoff from a region, given:
• the runoff coefficient which accounts 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
A. (4.) ELECTRONIC REPORTING OF 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.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reportinu Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)1
The permittee shall report discharge monitoring data electronically using the NC DWR'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
Page 5 of 7

Permit NC0074705
monitoringdata and submit DMRs electronicallyusingthe internet. The eDMR system maybe
Y
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
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, 2020, 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.
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 the NPDES program) that is the designated entity
for receiving electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for
each type of electronic submission and for each 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-
- 1 24954/national-pollutant-discharge-ehm mation-system-npdes a ectronic-re ortin p g-rule
Page 6 of 7

Permit NC0074705
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 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. Sienatory 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 7

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Magellan Terminals Holdings, LP Facility
Charlotte I Terminal Location <-,)
7145 Mount Holly Road, Charlotte 28214 Scale 1:24,000
Receiving Stream: UT to Paw Creek Stream Class: C
Stream Segment: 11-124 Sub-Basin: 03-08-34
Drainage Basin: Catawba HUC: 030501011404 NPDES Permit NC0074705
Latitude: 36°16'45" Longitude: 80°55'30" North
Q .t/l MecklenburgCounty Grid/USGS Oust!:
: FI5SW/Mount Island Lake,NC