NC0069841_Draft Permit_20171214

Water Resources
Environmental Quality
December 14, 2017
Mike Moler
Water and Wastewater Operations Division Manager
Union County
500 North Main Street, Suite 500
Monroe, NC 28112-4730
Dear Mr. Moler:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Interim Director
Subject: Draft NPDES Permit Renewal
Permit NCO069841
Crooked Creek WWTP #2, Class 3
Union County
SIC Code 4952
Enclosed with this letter is a copy of the Draft NPDES permit renewal for your facility. Please
review this draft carefully to ensure thorough understanding of the requirements and conditions it
contains. There are several changes from the existing permit, including the following:
• Instream monitoring for Conductivity has been removed based on State guidance provided
on April 22, 2002, that recommends removal from all 100% domestic wastewater permits.
Your facility treats 100% domestic wastewater according to your permit application.
• Limits for Ammonia -Nitrogen (NH3-N) have been reduced based on a wasteload allocation
calculation using EPA criteria and State guidance provided on July 22, 2016. The proposed
changes are tabulated below:
Existing
Proposed
Summer Winter
Summer Winter
Monthly Average 2.0 mg/L4.0 mg/L
1.0 mg/L 1.9 mg/L
Weekly Average 6.0 mg/L 12.0 mg/L
3.0 mg/L 5.7 mg/L
To allow time and actions toward meeting the new NH3-N limits, a 4 -year compliance
schedule has been added to the permit with annual milestones. [See Section A. (5.).]
=`'Nothing Compares+._ -
State of North Carolina I Environmental Quality
1611 Mail Service Center I Raleigh, North Carolina 27699-1611
919-707-9000

• Section A. (1.) Effluent Limitations and Monitoring Requirements sheet was split into
separate Interim and Final limitations and monitoring requirements sheets [as Sections A.
(1.) and A. (2.), respectively] to address the reduced NH3-N limits and 4 -year compliance
schedule. The interim sheet contains existing NH3-N limits to be in effect until completion
of the compliance schedule, no more than four years after the effective date of the permit.
The final sheet contains NH3-N limits effective at completion of the compliance schedule,
lasting through permit expiration.
• The NC 2007-2014 Water Quality Standard (WQS) Triennial Review was approved by the
NC Environmental Management Committee (EMC) on November 13, 2014. The US EPA
subsequently approved the WQS revisions on April 6, 2016 with some exceptions. The NC
Division of Water Resources NPDES Permitting Unit is required to implement the new
dissolved metal standards in all permits public noticed after April 6, 2016. The new
standards for most metals include acute standards. Further, the freshwater standards for
several metals are expressed as the dissolved form of the metals, and seven metals have
hardness -dependent equations. As a result, the NPDES Permitting Unit will need site-
specific effluent hardness data and instream hardness data, upstream of the discharge, for
each facility monitoring these metals in order to calculate permit limitations. Effluent
hardness sampling has been added to this permit at a quarterly monitoring
frequency. [See Sections A. (1.) and A. (2.) Effluent Limitations and Monitoring
Requirements.]
• Monitoring for Total Copper has been removed from the permit, based on results of a
reasonable potential analysis. No reasonable potential to exceed the water quality standard
was found, and the predicted maximum concentration was found to be less than 50% of its
allowable concentration.
• Review of submitted effluent found seven non -detects of Total Silver (two at < 10 µg/L
and five at < 5 µg/L). In accordance with 15A NCAC 2B .0500, all test procedures must
produce detection and reporting levels that are below the permit discharge requirements
and all data generated must be reported to the approved detection level of lower reporting
level of the procedure. Currently, DWR's laboratory identifies the PQL for Total Silver at
< 1 pg/L. The allowable discharge concentration for your facility is 0.06 gg/L Total Silver.
Therefore, the best your facility can do is to sample for Total Silver down to the lower
reporting level of the procedure, which is < 1 gg/L. Quarterly monitoring for Total Silver
has been added to the permit, for which shall be analyzed down to < 1.0 µg/L. The
Permittee should implement "clean" sampling techniques and have silver analyzed down
to the recommended PQL of < 1 µg/L. If these measures do not result in silver
concentrations consistently less than the PQL of 1 gg/L, limits will be added to the permit
during the next renewal.
• Monthly monitoring of Total Zinc has been removed from the permit. A review of effluent
data found no reasonable potential to exceed water quality standards, and the predicted
maximum concentration was found to be less than 50% of its allowable concentration.
Page 2 of 4

• Frequency of the Effluent Pollutant Scans have been reduced from annually to three years
within the permit term per 40 CFR 122. Effluent Pollutant Scans shall be sampled in years
2019, 2020 and 2021. [See Section A. (4.).]
Federal regulations require electronic submittal of all discharge monitoring reports
(DMRs) and program reports. The requirement to continue reporting discharge monitoring
data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR)
internet application has been added to your NPDES permit. [See Section A. (6.).]
For information on eDMR, registering for eDMR and obtaining an eDMR user account,
please visit the following web page: http://deq.nc.gov/about/divisions/water-
resources/edmr.
For more information on EPA's final NPDES Electronic Reporting Rule, please visit the
following web site: https://www.federalregister.gov/documents/2015/10/22/2015-
24954/national-pollutant-discharge-elimination-system-npdes-electronic-reporting-rule.
Please note, in accordance with 15A NCAC 02B .0500, all test procedures must produce detection
and reporting levels below the permit discharge limits, and all data must be reported to the
approved detection level or lower reporting level of the procedure. Currently, the Division's
laboratory identifies the PQLs for Arsenic at 2 µg/L, Cadmium at 0.50 µg/L, Lead at 2 µg/L, and
Selenium at 1 µg/L, plus PQLs several other parameters. Recommended PQLs can be found at
https://files.nc.gov/ncdeq/Water%20Quality/Chemistry o20Lab/Operations/Microbiology%20an
d%20Inorgamc%20Chemistry%20Branch/PQLInorganics20160829-Web Site.pdf.
Effluent Pollutant Scans shall test and report down to the parameter's PQL.
The NPDES Standard Conditions (Parts II, III, and IV) are not included with this draft. They can
be found at the following link if you would like to review them in conjunction with this draft
permit.
http ://ncdenr. s 3 . amazonaws. com/s3 fs-
public/Water%20Quality/Surface%20Water%20Protection/NPDES/MISC/NPDES%20Standard
%20Conditions-Boilerplate-DWR-SWP-NPDES-20150410.pdf
Also, please note that the receiving stream is listed as impaired for Benthos (freshwater benthic
aquatic life) on the North Carolina 2014 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.
Concurrent with this notification the Division is publishing a notice in a newspaper having
circulation in the general Union County area, soliciting public comments on this draft permit.
Please provide any written comments you may have to the following: NCDEQ/DWR, NPDES
Permitting Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617 no later than 30 days after
receipt of this draft permit.
Page 3 of 4

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 this draft
permit, please call me at [phone] or by email at [e-mail].
Sincerely,
Gary Perlmutter, Environmental Senior Specialist
NPDES Complex Permitting Unit
Hardcopy: NPDES Files
eCopy: DWR / Mooresville Regional Office / Water Quality Operations
US EPA Region 4
DWR / Operator Certification Unit / Maureen Kinney
DWR / Aquatic Toxicology Branch / Susan Meadows
DWR / WSS / Ecosystems Branch / Mark Vander Bourgh
Steve Tedder, Tedderfarm Consulting
Dawn Padgett, Operations Manager — Charlotte Water O&M contract with UCPW
Page 4 of 4

Pennit NC0069841
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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, the
Union County
is hereby authorized to discharge wastewater from a facility located at the
Crooked Creek WWTP #2
4015 Sardis Church Road
Monroe, NC 28110
Union County
to receiving waters designated as North Fork Crooked Creek in 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.
This permit shall become effective Nllron li 1, 20xx.
This permit and authorization to discharge shall expire at midnight on October 31, 2022.
Signed this day Month 1, 2Oxx.
Linda Culpepper, Interim Director
Division of Water Resources
By Authority of the Environmental Management Commission

Su e16011=411.01
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.
Union County is hereby authorized to:
1. Continue to operate an existing 1.9 MGD wastewater treatment system consisting of the following:
♦ Influent pump station with six pumps
♦ Mechanical bar screen
♦ Manual bar screen (back-up)
♦ Two oxidation ditches with six brush aerators
♦ Four secondary clarifiers
♦ Return and waste activated sludge pumping station
♦ Six tertiary sand filters
♦ UV disinfection system
♦ Two chlorine contact basins (optional)
♦ Dechlorination vault (optional)
♦ Cascade aeration
♦ Effluent pump station with three pumps
♦ Five aerobic digesters with 2.0 MG total capacity
♦ Standby generator
The facility is located at the Crooked Creek Wastewater Treatment Plant #2, 4015 Sardis Church
Road, Monroe, in Union County;
2. Discharge from said treatment works at the location specified on the attached map into North Fork
Crooked Creek which is classified C waters in the Yadkin -Pee Dee River Basin.
Page 2of14

Permit NCO069841
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (1.9 MGD,
Interim Ammonia -N Limitations) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
a. During the period beginning on the effective date and lasting until four years after the effective date
of this permit, the Permittee is authorized to discharge treated wastewater from Outfa11001. Such
discharges shall be limited and monitored' by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Location 2
Flow
1 9 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 -day, 20°C (Summer
April 1 through October 31) 3
5 0 m /L
g
7 5 m /L
g
3 / Week
Composite
P
Influent and Effluent
BOD, 5 -day, 20°C (Winter 3
November 1 through March 31)
10 0 mg/L
15 0 mg/L
3 / Week
Composite
Influent and Effluent
Total Suspended Solids (TSS) 3
30 0 mg/L
45 0 mg/L
3 / Week
Composite
Influent and Effluent
NH3 as N (Summer April 1
through October 31) 4
2 0 m /L
g
6 0 m /L
g
3 / Week
Composite
P
Effluent
NH3 as N (Winter November 1
through March 31) 4
4 0 m /L
g
12 0 m /L
g
3 / Week
Composite
P
Effluent
Dissolved Oxygen (DO)
Daily Average >_ 6.0 mg/L
3 / Week
Grab
Effluent
Fecal Coliform (geometric mean)
200/100 mL
400/100 mL
3 / Week
Grab
Effluent
Total Residual Chlorine (TRC) 5
17 µg/L 1
28 µg/L
3 / Week
Grab
Effluent
pH
Between 6 0 and 9 0 Standard Units
3 / Week
Grab
Effluent
Temperature (°C)
Monitor and Report
Daily
Grab
Effluent
Total Nitrogen (mg/L) 6
Monitor and Report
Monthly
Calculated
Effluent
Total Phosphorus (mg/L)
Monitor and Report
Monthly
Composite
Effluent
Total Hardness as [CaCO3 or
(Ca + Mg)] (mg/L) 7
Monitor and Report
P
Quarter' y
Composite
P
Effluent
Total Silver (µg/L) 8
Monitor and Report
Quarterly
Composite
Effluent
Chronic Toxicity s
Ceriodaphnia Pass/Fail at 90% Effluent
Quarterly
Composite
Effluent
Effluent Pollutant Scan
Monitor and Report
Footnote 10
Footnote 10
Effluent
Temperature (°C) 2
Variable
Grab
Upstream,
Downstream
Dissolved Oxygen (mg/L) 2
Variable 2
Grab
Upstream,
Downstream
Fecal Coliform (#/100 mL) 2
Variable 2
Grab
Upstream,
Downstream
All footnotes are listed on the following page.
Page 3 of 14

Pe=t NC0069841
Footnotes
1 Submit discharge monitoring reports electronically using NC DWR's eDMR application system See Section A (6 )
2 Upstream is at 50 feet from the outfall, downstream is '/ mile below discharge and at SR 1514 Upstream and
Downstream samples shall be grab samples. Instream samples shall be collected three times per week from June 1
through September 30 and once per week from October 1 through May 31 Instream monitoring is provisionally waived
in light of the Permittee's participation in the Yadkin -Pee Dee River Basin Association. Instream momtormg will be
immediately reinstated should the permittee end its participation in the Association
3 The monthly average effluent BODS and TSS concentrations shall not exceed 15% of the respective influent value (85%
removal)
4 The facility shall follow the compliance schedule detailed in Section A (4 ) in order to achieve compliance with final
ammoma-nitrogen limits within four years of the effective date of this permit [see Section A (2 )]
5. The facility shall monitor TRC when using chlorination for disinfection All effluent TRC values shall be reported by a
NC certified laboratory (including field -certified) Effluent values below 50 µg/L shall be treated as zero for compliance
purposes
6 Total Nitrogen = TKN + NO3-N + NO2-N, where TKN is Total Kjeldahl Nitrogen, NO3-N is Nitrate Nitrogen, and NOz-
N is Nitrite Nitrogen
7 Effluent Total Hardness sampling should be performed in conjunction with testing for hardness -dependent metals
(cadmium, copper, lead, nickel, silver, and zinc)
8 Total Silver shall be reported to the lower detection level, < PQL The Permittee should review and implement clean
sampling techniques for Total Silver The reporting laboratory should test to the lower reporting level of the procedure,
which is < 1 gg/L for Total Silver.
9 Whole Effluent Toxicity samples shall be taken in February, May, August and November See Section A (3 )
10 The Permittee shall perform three Effluent Pollutant Scans during the term of this permit See Section A (4 )
b. There shall be no discharge of floating solids or visible foam in other than trace amounts
Page 4of14

Permit NCO069841
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (1.9 MGD,
Interim Ammonia -N Limitations) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
a. During the period beginning on the effective date and lasting until four years after the effective date
of this permit, the Permittee is authorized to discharge treated wastewater from Outfa11001. Such
discharges shall be limited and monitored' by the Permittee as specified below:
All footnotes are listed on the following page.
Page 3of14
LIMITS
MONITORING REQUIREMENTS
EFFLUENT
Monthly
Weekly
Daily
Measurement
Sample
Sample Location 2
CHARACTERISTICS
Average
Average
Maximum
Frequency
Type
Flow
1 9 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 -day, 20°C (Summer
5 0 m /L
g
7 5 m /L
9
3 / Week
Composite
P
Influent and Effluent
April 1 through October 31) 3
BOD, 5 -day, 20°C (Winter
November 1 through March 31) 3
10 0 mg/L
15 0 mg/L
3 / Week
Composite
Influent and Effluent
Total Suspended Solids (TSS) 3
30 0 mg/L
45 0 mg/L
3 / Week
Composite
Influent and Effluent
NH3 as N (Summer April 1
2 0 m /L
g
6 0 m /L
g
3 / Week
Composite
P
Effluent
through October 31) 4
NH3 as N (Winter November 1
4 0 m /L
g
12.0 m /L
g
3 /Week
Composite
P
Effluent
through March 31) 4
Dissolved Oxygen (DO)
Daily Average >_ 6.0 mg/L
3 / Week
Grab
Effluent
Fecal Coliform (geometric mean)
200/100 mL
400/100 mL
3 / Week
Grab
Effluent
Total Residual Chlorine (TRC) e
17 µg/L
28 µg/L
3 / Week
Grab
Effluent
pH
Between 6 0 and 9 0 Standard Units
3 / Week
Grab
Effluent
Temperature (°C)
Monitor and Report
Daily
Grab
Effluent
Total Nitrogen (mg/L) 6
Monitor and Report
Monthly
Calculated
Effluent
Total Phosphorus (mg/L)
Monitor and Report
Monthly
Composite
Effluent
Total Hardness as [CaCO3 or
Monitor and Report
P
Quarter/ Y
Composite
P
Effluent
(Ca + M9)] (mg/L)'
Total Silver (µg/L) 8
Monitor and Report
Quarterly
Composite
Effluent
Chronic Toxicity
Cerrodaphn►a Pass/Fad at 90% Effluent
Quarterly
Composite
Effluent
Effluent Pollutant Scan
Monitor and Report
Footnote 10
Footnote 10
Effluent
Temperature (°C) 2
Variable
Grab
Upstream,
Downstream
Dissolved Oxygen (mg/L) 2
Variable 2
Grab
Upstream,
Downstream
Fecal Coliform (#/100 mL) 2
Variable 2
Grab
Upstream,
Downstream
All footnotes are listed on the following page.
Page 3of14

Permit NC0069841
Footnotes
1. Submit discharge monitoring reports electronically using NC DWR's eDMR application system See Section A (6 ).
2 Upstream is at 50 feet from the outfall, downstream is % mile below discharge and at SR 1514 Upstream and
Downstream samples shall be grab samples Instream samples shall be collected three times per week from June 1
through September 30 and once per week from October 1 through May 31. Instream monitoring is provisionally waived
in light of the Permittee's participation in the Yadkm-Pee Dee River Basin Association Instream monitoring will be
immediately reinstated should the permittee end its participation in the Association
3 The monthly average effluent BODS and TSS concentrations shall not exceed 15% of the respective influent value (85%
removal)
4 The facility shall follow the compliance schedule detailed in Section A (4.) in order to achieve compliance with final
ammoma-mtrogen limits within four years of the effective date of flus permit [see Section A (2 )]
5. The facility shall monitor TRC when using chlorination for disinfection. All effluent TRC values shall be reported by a
NC certified laboratory (including field -certified) Effluent values below 50 gg/L shall be treated as zero for compliance
purposes
6 Total Nitrogen = TKN + NO3-N + NO2-N, where TKN is Total Kjeldahl Nitrogen, NO3-N is Nitrate Nitrogen, and NO2-
N is Nitnte Nitrogen
7 Effluent Total Hardness sampling should be performed in conjunction with testing for hardness -dependent metals
(cadmium, copper, lead, nickel, silver, and zinc)
8 Total Silver shall be reported to the lower detection level, < PQL The Permittee should review and implement clean
sampling techniques for Total Silver The reporting laboratory should test to the lower reporting level of the procedure,
which is < 1 gg/L for Total Silver
9 Whole Effluent Toxicity samples shall be taken in February, May, August and November. See Section A (3 )
10 The Permttee shall perform three Effluent Pollutant Scans during the tern of this permit See Section A (4.)
b. There shall be no discharge of floating solids or visible foam in other than trace amounts
Page 4 of 14

Permit NCO069841
A.(3.) CHRONIC TOXICITY PERMIT LIMIT (Quarterly) [15A NCAC 02B.0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 90%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in
the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or
subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised- December 2010) or subsequent versions. The tests will be performed during the months of
February, May, August and November. 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.
If the test procedure performed as the first test of any single quarter results in a failure or Chronic
Value (ChV) below the permit limit, then multiple -concentration testing shall be performed at a
minimum, in each of the two following months as described in "North Carolina Phase II Chronic
Whole Effluent Toxicity Test Procedure" (Revised -December 2010) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR -1) for the months in which tests were performed, using the parameter
code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT -
3 (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, NC 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30
days after the ead of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. Total Residual Chlorine of the effluent toxicity sample must be measured and reported if
chlorine is employed for disinfection of the waste stream.
r `
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, monitoring
will be required during the following month. 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.
Page 7of14

Permit NC0069841
Should any test data from this monitoring requirement 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, minimum control organism reproduction, 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 8of14

Permit NCO069841
A.(4.) EFFLUENT POLLUTANT SCAN (Municipal POTWs) [G.S. 143-215.1(b)]
The Permittee 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: 2019, 2020, and 2021. 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 (TKN)
Oil and Grease
Phosphorus
Total Dissolved Solids
Hardness
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Mercury (EPA Method 1631E)
Nickel
Selenium
Silver
Thallium
Zinc
Cyanide
Total Phenolic Compounds
Volatile organic compounds:
Acrolem
Acrylomtnle
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 -tnchloroethane
1,1,2 -trichloroethane
Trichloroethylene
Vinyl chloride
Acid -extractable compounds:
P -chloro -m -cresol
2 -chlorophenol
2,4-dichlorophenol
2,4 -dimethylphenol
4,6-dimtro-o-cresol
2,4-dinitrophenol
2-mtrophenol
4-mtrophenol
Pentachlorophenol
Phenol
2,4, 6-tnchlorophenol
Base -neutral compounds:
Acenaphthene
Acenaphthylene
Anthracene
Benzidme
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
Page 9of14
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-dimtrotoluene
2,6-dimtrotoluene
1,2-diphenylhydrazine
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclo-pentadiene
Hexachloroethane
Indeno(1,2,3-cd)pyrene
Isophorone
Naphthalene
Nitrobenzene
N-nitrosodi-n-propylamine
N-mtrosodimethylamme
N-mtrosodiphenylamine
Phenanthrene
Pyrene
1,2,4-tnchlorobenzene

Permit NCO069841
Reporting. Test results shall be reported on DWR Form -A MR-PPA1 (or in a form approved by the
Director) by December 31St of each designated sampling year. The report shall be submitted to the
following address: NC DEQ / DWR / Central Files, 1617 Mail Service Center, Raleigh, North
Carolina 27699-1617.
Additional Toxicity Testing Requirements for Municipal Permit Renewal. Please note that
Municipal facilities that are subject to the Effluent Pollutant Scan requirements listed above are also
subject to additional toxicity testing requirements specified in Federal Regulation 40 CFR 122.210)(5).
The US EPA requires four (4) toxicity tests for a test organism other than the test species currently
required in this permit. The multiple species tests should be conducted either quarterly for a 12 -month
period prior to submittal of the permit renewal application, or four tests performed at least annually in
the four and one half year period prior to the application. These tests shall be performed for acute or
chronic toxicity, whichever is specified in this permit. The multiple species toxicity test results shall be
filed with the Aquatic Toxicology Branch at the following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Contact the Division's Aquatic Toxicology Branch at 919-743-8401 for guidance on conducting the
additional toxicity tests and reporting requirements. Results should also be summarized in Part E
(Toxicity Testing Data) of EPA Municipal Application Form 2A, when submitting the permit renewal
application to the NPDES Permitting Unit.
Page 10 of 14

Permit NCO069841
A. (5.) SCHEDULE OF COMPLIANCE FOR AMMONIA -NITROGEN LIMITATIONS
[G.S. 143-215.1(b)]
1. Within one (1) year from the effective day of the permit, the Permittee shall submit to the
Division of Water Resources a Corrective Action Plan summarizing the strategy or actions to be
taken to achieve compliance with the Ammonia -Nitrogen (NH3-N) limitations listed in Section
A. (1), which includes specific dates for completion or implementation of each action.
2. Within two (2) years from the effective date of the permit, the Permittee shall submit a report to
the Division summarizing actions taken in accordance with the Corrective Action Plan.
3. Within three (3) years from the effective date of the permit, the Permittee shall submit a report
to the Division summarizing actions taken in accordance with the Corrective Action Plan.
4. The Permittee shall achieve compliance with NH3-N limitations specified in Section A. (2.)
within four (4) years of the effective date of this permit. [give specific date in final permit].
Upon approval of the Corrective Action Plan by the Division, the report and actions become an
enforceable part of this permit. Any modifications to the schedule shall be requested to the Division at
least ninety (90) days before the deadline. Modifications to the schedule in excess of four (4) months
will be subject to public notice.
Page 11 of 14

Permit NCO069841
A.(6.) ELECTRONIC REPORTING OF 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 Section supplements or supersedes the following sections within Part I1 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. Reporting Requirements [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 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:
Page 12 of 14

Permit NC0069841
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.federalre ig'ster.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge-
elimination-systein-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 five (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.ne.gov/about/divisions/water-resources/edmr
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Permit NC0069841
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. (I 1.)(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.
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:
hLp:Hdeq.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 1122.22]. 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 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 submitting false information, including the
possibility of fines 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 three (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 14 of 14

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Lat.: 35°05'47' N Stream Class: C Union County
Long.: 80°35'53" W Sub -basin: 03-07-12 NOYtl1 Map not to scale