NC0029246_Draft Permit_20190612

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
NORTH CAROLINA
Environmental Quality
June 12, 2019
Joseph Williams, Environmental Compliance Director
Norfolk Southern Railway Company
1200 Peachtree St Box 13
Atlanta, GA 30309
Subject: Draft NPDES Permit NCO029246
Norfolk Southern Railway Company - Linwood Yard
Grade II Physical Chemical WPCS
Davidson County
Dear Mr. Williams:
The Division has reviewed your request to renew the subject permit. Please review this draft
carefully to ensure your thorough understanding of the information, conditions and requirements it
contains.
The Division understands that you have made no modifications to your facility. The draft permit
includes the following significant changes from the existing permit:
1. The facility map has been updated.
2. For Oil & Grease, please note that the parameter code 00556 remains the same for
submitting DMR/eDMR, but use test EPA method 1664 (SGT-HEM) with results in mg/L.
3. The following footnote 3 has been updated for Total Boron:
The following practical quantitation limit (PQL) shall be met: Boron (50 µg/L).
Concurrent with this notification, the Division will solicit public comment on this draft by
publishing a notice in newspapers having circulation in the general Davidson County area, as
required by the NPDES Program. Please provide your comments, if any, to me via email
[[e-mail]] or write to my attention care of DEQ / DWR / NPDES Program no
later than July 12, 2019. Your written comments are welcome but not mandatory. Following the
mandatory 30-day public comment period, the Division will review all pertinent comments on your
permit draft, and take appropriate action prior to issuing your NPDES permit final.
D_ E Q 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
Noawr� /`� 919.707.9000

Mr. Williams
June 12, 2019
Page 2 of 2
If you have questions concerning this draft, please e-mail me or call my direct line [phone].
Sincerely,
Derek Denard, Environmental Specialist
Division of Water Resources, NCDEQ
Enclosure: NPDES Permit NCO029246 (renewal DRAFT)
he: NPDES Program Files
ec: WARO / Gary Hudson [[e-mail]]
Wastewater Operator Certification Group / Maureen Kinney [[e-mail]]
Aquatic Toxicology Branch / Susan Meadows [[e-mail]]; Cindy Moore [[e-mail]]

NPDES Permit NCO029246
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 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Norfolk Southern Railway Company
is hereby authorized to discharge wastewater from a facility located at the
Linwood Yard
off I-85 Belmont Road Extension (Exit 86), Linwood 27299
Davidson County
to receiving waters designated as South Potts Creek, within the Yadkin -Pee Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts
I, II, III and IV hereof.
The permit shall become effective
This permit and the authorization to discharge shall expire at midnight on
Signed this day
Linda Culpepper, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

NPDES Permit NCO029246
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit 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 included herein.
Norfolk Southern Railway Company
is hereby authorized to:
1. continue to operate an existing 0.317 MGD industrial wastewater treatment system that treats
wastewater generated from maintenance shops and stormwater from a Surface -Water Pollution
Control System, which includes runoff from fuel offloading areas, and stormwater in proximity to
above -ground storage tanks (ASTs) for the surface bulk -storage of petroleum hydrocarbon fuels in
excess of one million gallons, utilizing the following components:
• track collection pans
• bar screen
• grit chamber
• oil skimmers
• equalization basin
• chemical feed/flocculation
• dissolved air flotation unit
• clarifier
• aerated polishing pond
• activated carbon filtration system
• flow meter
• sludge drying beds
• grit chambers (stormwater)
• stabilization basins (stormwater)
• effluent control structures (stormwater)
located off I-85 [Belmont Road Extension (Exit 86)] at Norfolk Southern Railway Company,
Linwood Yard, Linwood, Davidson County; and
2. discharge from said treatment works via Outfall 011, at a location specified on the attached
map, into South Potts Creek (First Potts Creek) [Stream Segment 12-111], currently a Class
C waterbody within Subbasin 03-07-04 [HUC: 030401030103], in the Yadkin -Pee Dee
River basin.
Page 2 of 7

NPDES Permit NCO029246
PART I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade II Physical Chemical Water Pollution Control System [15A NCAC 08G .0302]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge treated industrial wastewater including stormwater from outfall
011. Such discharges shall be limited and monitoredl by the Permittee as specified below:
EFFLUENT
MONITORING
CHARACTERISTICS
LIMITS
REQUIREMENTS
Monthly
Daily
Measurement
Sample
Sample
Parameter Code
Average
Maximum
Frequency
Type
Location2
Flow (MGD) 50050
0.317 MGD
Continuous
Recording
Influent or
Effluent
Oil and Grease (mg/L)
30.0 mg/L
60.0 mg/L
2/Month
Grab
Effluent
[EPA Method 1664 SGT-HEM] 00556
BOD, 5-day (20°C) (mg/L) C0310
36.0 mg/L
54.0 mg/L
Weekly
Composite
Effluent
Total Suspended Solids
30.0 mg/L
45.0 mg/L
Monthly
Composite
Effluent
(TSS) (mg/L) C0530
Dissolved Oxygen (DO) (mg/L) 00300
Monitor & Report
Weekly
Grab
Effluent
Temperature (°C) 00010
Monitor & Report
Weekly
Grab
Effluent
PH (su) 00400
>6.00and<9.
Weekly
Grab
Effluent
standard units
Phenolics, Total Recoverable (µg/L) 32730
Monitor & Report
Quarterly
Grab
Effluent
Boron, Total (µg/L) 3 01022
Monitor & Report
Quarterly
Composite
Effluent
Total Nitrogen (TN) (mg/L)
Monitor & Report,
Quarterly
Composite
Effluent
(NO2-N + NO3-N + TKN) C0600
Total Phosphorus (TP) (mg/L) C0665
Monitor & Report
Quarterly
Composite
Effluent
Acute Toxicity 4 TGE313
See Footnote 4
Quarterly
Composite
Effluent
Turbidity (NTU) 5 00070
Monitor & Report
2/Month
Grab
U & D
Dissolved Oxygen (DO) (mg/L) 00300
Monitor & Report
Weekly
Grab
U & D
Temperature (°C) 00010
Monitor & Report
Weekly
Grab
U & D
Footnotes:
1. The Permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR
application system. See Condition A. (3).
2. U: at least 100 feet upstream from the outfall. D: at least 300 feet downstream from the outfall.
3. The following practical quantitation limit (PQL) shall be met: Boron (50 µg/L).
4. Acute Toxicity (Ceriodaphnia dubia): pass/fail; permit limited; at 90%; March, June, September, and
December; see A. (2).
5. The discharge shall not cause the turbidity of the receiving water to exceed 25 NTU. If the turbidity
exceeds these levels due to natural background conditions, the discharge cannot cause an increase in the
turbidity in the receiving water.
Conditions:
• There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 7

NPDES Permit NCO029246
A. (2) ACUTE TOXICITY PASS / FAIL PERMIT LIMIT (Quarterly)
[15A NCAC 02B .0200 et seq.]
The permittee shall conduct acute toxicity tests on a quarterlX 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 Ceriodaphnia dubia 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 March, June, September, and December. 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
effluent discharge below all treatment processes.
Should any single quarterly monitoring indicate a failure to meet specified limits, 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.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE3B.
Additionally, DWR Form AT-2 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
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 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 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.
Page 4 of 7

NPDES Permit NCO029246
A. (3.) 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 Il 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 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 monitoring
data and submit DMRs electronically using the internet. Until such time that the state's eDMR application
is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be
required to submit all discharge monitoring data to the state electronically using eDMR and will be required
to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of
the computer printed eDMR 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
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 mailing address above. 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).
Page 5 of 7

NPDES Permit NC0029246
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: httn://www2.ppa.gov/compliance/final-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 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. 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 H, Section B.
(11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting purposes.
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:
Page 6 of 7

NPDES Permit NC0029246
"I 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 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 submittingfalse information, including the possibility offines and imprisonment for knowing
violations. "
5. Records Retention [Supplements Section D. (6.)]
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].
A. (4.) NUTRIENT REOPENER FOR HIGH ROCK LAKE
[G.S. 143-215.1(b)]
This permit may be reopened and modified to implement nutrient requirements in accordance with any
future TMDL and/or nutrient management strategy for High Rock Lake.
Page 7 of 7

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Norfolk Southern Railway Co. - Linwood Yard
NPDES Permit NCO029246
off I-85 Belmont Road Extension (Exit 86), Linwood 27299
Receiving Stream: South Potts Creek (First Potts Creek)
Stream Segment: 12-111 Stream Class: C
River Basin: Yadkin -Pee Dee Sub -Basin #: 03-07-04
County: Davidson HUC: 030401030103
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USGS Quad: Linwood, NC