NC0085979_Technical Correction of Permit_20170804

Water- Resources
ENVIRONMENTAL QUALITY
ROY COOPER
Govemot
MICHAEL S. REGAN
Sectelan
S. JAY ZIMMERMAN
l ht eclat
August 4, 2017
Ms. Sheri Knox
Amer Foster Wheeler
4021 Stirrup Creek Dr, Suite 100
Durham, NC 27703
Subject: Technical correction to NPDES Permit NCO085979
NC DOT - Rosman Maintenance Facility
Transylvania County
Dear Ms. Knox:
The Division has reviewed the permit file in response to your notification that the subject permit
was missing a sample type and monitoring frequency for one parameter. The Division hereby issues this
technical correction to resolve the issue. This correction is issued pursuant to the requirements of North
Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the
U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). Insert the
attached pages into your permit and discard the old pages.
This modified permit includes the following changes from your current permit:
➢ This sample type and monitoring frequency for EPA Method 625 has been added to the permit.
➢ The first paragraph of section I (A.) (3.) has been updated.
If any parts, measurement frequencies or sampling requirements contained in this modification are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings
(6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this
decision shall be final and binding.
This permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements
to obtain other permits which may be required by any other Federal, State, or Local governmental
regulation. If you have any questions concerning this matter, please contact Charles H. Weaver at (919)
807-6391 or via e-mail [[e-mail]].
Q,
S. Jay Zimmerman, Director
Division of Water Resources
cc: Central Files
Asheville Regional Office / Tim Heim
NPDES Unit
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 919-807-6389 FAX
https://deq.nc.govlabout/divisionslwater-resources/water-resources-permits/wastewater-branchlnpdes-wastewater-permits

Permit NCO085979
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored) by the Permittee as
specified below:
EFFLUENT
CHARACTERISTICS
Parameter Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly Average
Daily Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow 2 50050
0.0288 MGD
Continuous
Recording
Effluent
Acute Toxicity 31- TGE6C
Quarterly
Grab
Effluent
EPA Method 6244 76029
Quarterly
Grab
Effluent
EPA Method 6254 76028
Quarterly
Grab
Effluent
Chloride 00940
Monthly
Grab
Effluent
pH 00400
>_ 6 0 and < 9.0 standard units
Monthly
Grab
Effluent
Footnotes:
1. Permittee shall submit discharge monitoring reports electronically using the Division's eDMR application system
[see A. (3.)].
2. All volumes of wastewater leaving the facility shall be monitored.
3. Acute toxicity (Fathead Minnow) Pass / Fail test at 90% during the months of January, April, July and October.
Samples for EPA Methods 624/625 should be collected at the same time as the toxicity test sample.
4. Chemicals that are to be monitored using an EPA approved method equivalent to the detection levels obtainable by
Method 624 and 625 or better are as follows•
• 2-Chloroethylvinyl ether
• 2,4-Dinitrophenol
• 3,3-Dichlorobenzidine,
• 4,6-Dinitro-2-methylphenol,
• 4-Nitrophenol,
• Acrolein,
• Acrylonitrile,
• Benzidine,
• Hexachlorocyclopentadine,
• Pentachlorophenol,
• Toluene,
• Bis (2-Ethylhexyl) Phthalate,
• Ethylbenzene, and
• Xylenes
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Part I, Page 3 of 6

Permit NCO085979
A. (2.) ACUTE TOXICITY MONITORING (QUARTERLY)
[15A NCAC 02B .0500 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 effluent
discharge below all treatment processes.
The parameter code for Pimephales promelas is TGE6C. 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 -2 (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
Completed Aquatic Toxicity Test Forms shall b- 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 any month, 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. Upon submission of a valid test, this monthly test requirement will revert to
quarterly in the months specified above
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.
Part I, Page 4 of 6

Permit NCO085979
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 fmal 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 R of this permit
(Standard Conditions for APDES Permits):
Section B. (11.) Signatory Requirements
Section D. (2.) Reporting
Section D: (6.) Records Retention
Section E. (5.) Monitoring Reports
1. Reportine [Supersedes Section D. (2.) and Section E. (5.) (a)]
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 DENR / DWR / Information Processing Unit
ATTENTION: Central Files / eDMR
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.
Requests for temporary waivers from the NPDES electronic reporting requirements 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 using eDMR. Temporary waivers shall be valid for twelve (12) months and shall thereupon
expire. At such time, DMRs shall be submitted electronically to the Division unless the permittee re -applies for
and is granted a new temporary waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic reporting requirements
is found on the following web page:
http://portal.ncdenr.or web/wq/admin/bow u/p edmrr
Part I, Page 5 of 6

Permit NC0085979
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.
2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B. (11.) (d)]
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B.
(I 1.)(a) or by a duly authorized representative of that person as described in Part H, Section B. (I 1.)(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•//portal ncdenr or web/wq/admin/bog/ipu/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 system designed to assure that qual f ed 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 submitting
false information, including the possibility of fines and imprisonment for knowing violations. "
3. 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].
Part I, Page 6 of 6