NC0026611_Permit Modification_20130401

NPDES DOCUMENT SCANNIN` COVER SHEET
Permit:
NC0026611
Morehead City WWTP
NPDES
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
rlw
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
April 1, 2013
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Arir4,
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P.E. John E. Skvarla, III
Governor Director Secretary
April 1, 2013
David Whitlow
City Manager
Town of Morehead City
706 Arendell Street
Morehead City, NC 28557
Subject: Minor Modification of NPDES Permit
Permit NC0026611
Morehead City WWTP
Carteret County
Class IV
Dear Mr. Whitlow:
To be consistent with North Carolina Division of Marine Fisheries/Shellfish Sanitation notification
requirements as applied in other coastal permits, special condition A. (6) Notification of Release narrative was
modified and now requires immediate notification for releases of untreated, or partially treated, wastewater to
waters of the state. Attached is a new page with the modified special condition. Please insert the new page and
discard the replaced page.
Please note that this permit modification does not effect any other permit requirements and is effective
five days from this letter date. If you have any questions concerning this permit modification, please contact
Ron Berry at telephpne number [phone] or at email [e-mail].
Sincerely,
dlitCharles Wakild, P.E.
Attachments
Cc: Wilmington Regional Office/Surface Water Protection Section
EPA Region IV/Ben Ghosh (email)
Shellfish Sanitation/Patti Fowler (email)
Central Files
NPDES File
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet www.ncwaterquality.org
An Equal opportunity 1 Affirmative Action Employer
NorthCarolinan
Naturally

Permit NC0026611
A. (6) NOTIFICATION OF RELEASE
The permittee sha}1 notify the North Carolina Division of Marine Fisheries, Shellfish Sanitation and
Recreational Water Quality Section of any release of partially treated wastewater or untreated
wastewater into arty streams protected by the state.
• Notification shall be made as soon as the release is known to the North Carolina Division of
Marine Fisheries, Shellfish Sanitation and Recreational Water Quality Section at (252) 726-
6827 during normal business hours.
• Notification shall be made as soon as the release is known to the North Carolina Division of
Marine Fisheries communication center at [phone] after hours, weekends and
holidays.
This notification does not relieve the permittee of other spill/release notification procedures as
required by other agencies.
A. (7) MERC Y MINIMIZATION PLAN (MMP)
The permittee sh 1 develop and implement a mercury minimization plan during this permit term.
The MMP shall bye developed within 180 days of the NPDES Permit Effective Date, and shall be
available for inspection on -site. A sample MMP was developed through a stakeholder review
process and has b en placed on the Division website for guidance:
http: //portal. ncdenr. org/web/wq/swp/ps/npdes under "Model Mercury Minimization Plan"
The MMP should place emphasis on identification of mercury contributors and goals for reduction.
Results shall be summarized and submitted with the next permit renewal.
A. (8) TEMPORARY MEANS OF DISINFECTION
In the event that the wastewater treatment plant's ultraviolet (UV) disinfection system should fail,
underperform, or ;otherwise be removed from effective service, the permittee or his agent should
immediately inform the Surface Water Protection Section staff of the Wilmington Regional Office of
this development and discuss temporary, alternate means for disinfection of the effluent.
If chlorine compords are used as temporary means of disinfection, the total residual chlorine (TRC)
concentration of the effluent must be monitored on a daily basis while this method of disinfection is
in use, and values must be reported on the discharge monitoring report. TRC in the effluent shall not
exceed the recognized minimum measureable TRC of 50 µg/L, all values shall be reported even
when less than 50 µg/L; therefore, dechlorination methods may also be necessary to ensure
protection of wate% quality in the receiving stream.
Use of a disinfection system other than the permitted UV system during circumstances not deemed
as emergency and/or temporary (replacement of lamps, lamp cleaning or maintenance, etc.) will be
considered a violation of the terms of this permit.

Permit NC0026611
A. (5) EFFLUENT POLLUTANT SCAN
The Permit* shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed
below. One scan must be performed in each of the following years: 2014, 2015, and 2016.
Analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to
determine whether parameters are present in concentrations greater than applicable standards and
criteria. Samples should be collected with one quarterly toxicity test each year, and must represent
seasonal variation [i.e., do not sample in the same quarter every year]. Unless otherwise indicated,
metals shall be analyzed as "total recoverable."
Ammonia (as N)
Chlorine, total residual (TRC)
Dissolved oxygen
Nitrate/Nitrite
Kjeldahl nitrogen
Oil and grease
Phosphorus
Total dissolved solids
Hardness
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Mercury (Method 1631 E)
Nickel
Selenium
Silver
Thallium
Zinc
Cyanide
Total phenolic compounds
Volatile Oreanlc Compounds
Acrolein
Acrylonitrile
Benzene
Bromoform
Carbon tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
2-chloroethylvinyl ether
Chloroform
Dichlorobromomethane
1,1-dichloroethane
1,2-dichloroethane
Trans-1,2-dichloroethylene
1,1-dichloroethylene
1,2-dichloropropane
1,3-dichloropropylene
Ethylbenzene
Methyl bromide
Methyl chloride
Methylene chloride
1,1,2,2-tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-trichloroethane
1,1,2-trichloroethane
Trichloroethylene
Vinyl chloride
Acid -extractable Compounds
P-chloro-m-creso
2-chlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
4,6-dinitro-o-cresol
2,4-dinitrophenol
2-nitrophenol
4-nitrophenol
Pentachlorophenol
Phenol
2,4,6-trichlorophenol
Base -neutral Compounds
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
Bis (2-chloroethyl) ether
Bis (2-chloroisopropyl) ether
Bis (2-ethylhexyl) phthalate
4-bromophenyl phenyl ether
Butyl benzyl phthalate
2-chloronaphthalene
4-chlorophenyl phenyl ether
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenzo(a,h)anthracene
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichlorobenzene
3,3-dichlorobenzidine
Diethyl phthalate
Dimethyl phthalate
2,4-dinitrotoluene
2,6-dinitrotoluene
1,2-diphenylhydrazine
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclo-pentadiene
Hexachloroethane
Indeno(1,2,3-cd)pyrene
Isophorone
Naphthalene
Nitrobenzene
N-nitrosodi-n-propylamine
N-nitrosodimethylamine
N-nitrosodiphenylamine
Phenanthrene
Pyrene
1,2,4-trichlorobenzene
Test results shall be reported on DWQ Form -A MR-PPA1 (or in a form approved by the Director) by
December 31 st of each designated sampling year. The report shall be submitted to the following
address:
NC DENR / DWQ / Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-16 ] 7