NC0023931_Draft Permit_20201027

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
Mr. M. Jason Manning, Superintendent
Greenville Utilities Commission
PO Box 1847
Greenville, North Carolina 27834
Dear Mr. Manning:
NORTH CAROLINA
Environmental Quality
October 27, 2020
Subject: Draft NPDES Permit Renewal
Permit NCO023931
GUC WWTP
Pitt County
Grade IV Biological WPCS
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:
• 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 and instream hardness sampling, upstream of the discharge, have been added to
the permit at a monitoring frequency of quarterly [See A.(1.)].
• Some of the wording has changed in Special Condition A.(6.), Chronic Toxicity Permit
Limit, please review each paragraph carefully.
• Special Condition A.(7.) has been modified to include the specific three years in which the
Effluent Pollutant Scan shall be performed (2022, 2023, and 2024). In addition, at the end
of the Special Condition, 2nd species Toxicity Testing Requirements for municipal permit
renewals per Federal Regulations [40 CFR 122.210)(5)] have been added.
• A notation was made concerning the Electronic Reporting Rule — Phase 2 Extension. EPA
is proposing to extend the Phase 2 deadline from December 21, 2020, to December 21,
2025. The current compliance date will be extended if the implementation date is extended
as a final regulation change in the federal register [See A.(8.)].
• Parameter codes have been added to the Effluent Limitations and Monitoring Requirements
[ See A.(1.)].
D Q15_
� North Carolina Department of Environmental Quality I Division of Water Resources
E_ 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh. North Carolina 27699-1617
NORTH Ga.F1[,y INA
919.707.9000

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 except that agency and division names have been updated. The latest version is available at
https:/ibit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
Concurrent with this notification the Division is publishing a notice in a newspaper having
circulation in the general Pitt 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.
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 contact me at [phone] or by email at [e-mail].
Sincerely,
711^
Nick Coco, Engineer
NPDES Municipal Permitting Unit
Hardcopy: NPDES Files
Ecopy: US EPA Region 4
DWR/Washington Regional Office/Water Quality/Robert Tankard
DWR/Operator Certification Program/Maureen Kinney
DWR/Aquatic Toxicology Branch/Cindy Moore
DWR/Ecosystems Branch/Mark Vander Borgh
Page 2 of 2

Permit NCO023931
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
Iv11E&VA1011
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
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, the
Greenville Utilities Commission
is hereby authorized to discharge wastewater from a facility located at the
Greenville Utilities Commission Wastewater Treatment Plant
240 Aqua Lane, Greenville
Pitt County
to receiving waters designated as the Tar River in the Tar -Pamlico 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: .............................................................................................. Month xx, 2020.
This permit and the authorization to discharge shall expire at midnight on: ................... October 31, 2025.
Signed this day: ..................... Month xx, 2020.
DRAFT
for S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission

Permit NC0023931
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.
The Greenville Utilities Commission
is hereby authorized to:
1. Continue operation of a 17.5 MGD wastewater treatment facility that includes the following
components:
• Haul Waste Receiving Station
• Solids screening
• Centrifugal grit removal
• Influent flow measurement with Parshall flume and ultrasonic transducer,
• Dual diffused aeration basins - one using diffused aeration and the other using diffused air
aeration basins with anoxic/aerobic zones (operating for biological nutrient removal)
• Dual secondary clarifiers
• Post aeration unit
• Deep bed sand filters
• Ultraviolet disinfection
• Sludge holding tanks
• Belt filter press
• Sludge drying beds
• Emergency power generators
This facility is located at the Greenville Utilities Commission Wastewater Treatment Plant at 240 Aqua
Lane, Greenville in Pitt County.
2. Discharge treated wastewater from said treatment works at the location specified on the attached
map through outfall 001 (via an effluent channel) into the Tar River, a class C-NSW water in the
Tar -Pamlico River Basin.
Page 2 of 14

Permit NCO023931
PART
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water
Pollution Control System [15A NCAC 08G .0302]
a. Beginning on the effective date of this permit and lasting until permit expiration, the Permittee is
authorized to discharge treated wastewater from outfall 001. Such discharges shall be limited
and monitored) by the Permittee as specified below:
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
PARAMETER
Monthly
Weekly
Daily
Measurement
Sample
Sample
Parameter Code
Average
Average
Maximum
Frequency
Type
Location2
Flow 50050
17.5 MGD
Continuous
Recording
I or E
Total Monthly Flow 82220
Monitor and Report
Monthly
Recorded or
Calculated
I or E
CBODs (20°C) s
80082
8.0 mg/L
12.0 mg/L
2/Week4
Composite
I and E
(April 1 - October 31)
CBOD5 (20°C) 3 80062
15.0 mg/L
22.5 mg/L
2/Week4
Composite
I and E
(November 1 - March 31)
Total Suspended Solids3 C0530
30.0 mg/L
45.0 mg/L
2/Week4
Composite
I and E
Ammonia (NH3 as N) C0610
4.1 mg/L
12.3 mg/L
2/Week4
Composite
E
(April 1 - October 31)
Ammonia (NH3 as N)
C0610
8.2 mg/L
24.6 mg/L
2/Week4
Composite
E
(November 1 - March 31)
Fecal Coliform 31616
(geometric mean)
200/100 mL
400/100 mL
2/Week4
Grab
E
Dissolved Oxygen 00300
Daily Average >- 5.0 mg/L
Daily
Grab
E
Temperature, °C 00010
Monitor and Report
Daily
Grab
E
pH 00400
Between 6.0 and 9.0 standard units
Daily
Grab
E
Conductivity 00094
Monitor and Report
Daily
Grab
E
TKN, mg/L 00625
Monitor and Report
Weekly
Composite
E
NO3-N + NO2-N, mg/L 00630
Monitor and Report
Weekly
Composite
E
Total Nitrogen, mg/L6 C0600
Monitor and Report
Weekly
Composite
E
QM600
Monitor and Report (lb/mo)
Monthly
Calculated
E
TN Load6
Annually
Calculated
E
QY600
249,576lb/yr'
Total Phosphoruss, mg/L C0665
Monitor and Report
Weekly
Composite
E
QM665
Monitor and Report
Monthly
Calculated
E
TP Load6
Annually
Calculated
E
QM665
45,103lb/yr7
00900
Total Hardness [as CaCO3], mg/L$
Monitor and Re port
Quarterly
y
Composite
p
E
Chronic Toxicity$ TGP38
See Note 8
Quarterly
Composite
E
Effluent Pollutant Scan NC01
Monitor and Report
Footnote 9
E
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using NC DWWs eDMR application system.
See Special Condition A.(8.).
2. Sample Location: E - Effluent, I - Influent.
3. The monthly average effluent CB0135 and TSS concentrations shall not exceed 15% of the respective influent value
(85% removal).
4. 2/ Week sampling must occur on any two non-consecutive days during the calendar week.
5. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl
Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. TP is Total Phosphorus.
6. TN or TP Load is the mass quantity of Total Nitrogen or Total Phosphorus discharged in a given period of time. See
Special Condition A. (3.) Calculation of Total Nitrogen and Total Phosphorous Loads.
Page 3 of 14

Permit NCO023931
(Footnotes continued on next page.)
Footnotes (continued
7. Compliance with mass limits shall be determined in accordance with Special Condition A.(4.) Annual Limits for
Total Nitrogen or Total Phosphorus.
8. Chronic Toxicity (Ceriodaphnia) P/F @ 20%, March, June, September, December; See Special Condition A.(6.).
9. The Permittee shall perform three Effluent Pollutant Scans during the term of this permit [see A.(7.)].
b. There shall be no discharge of floating solids or visible foam in other than trace amounts.
A.(2.) INSTREAM MONITORING REQUIREMENTS
[15A NCAC 02B .0500 et seq.]
(a.) Instream monitoring is required for the following parameters at the locations specified:
PARAMETER Parameter Code
Measurement Frequency
Sample Type
Sample Location'
Dissolved Oxygen, mg/L 00300
June -Sept
Weekly
Grab
U, D
October -May
Monthly
Temperature, °C 00010
June -Sept
Weekly
Grab
U, D
October -May
Monthly
Conductivity, pmhos/cm 00094
June -Sept
Weekly
Grab
U, D
October -May
Monthly
Total Hardness [as CaCO3], mg/L2 00900
Quarterly
Grab
U
Footnotp-
1. U - Upstream 500 feet above the mouth of Barber Creek, D - Downstream at Yankee Hall Road.
2. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample shall be
representative of the hardness in the receiving stream. If the Permittee is a member of the Monitoring
Coalition Program, sampling for instream hardness may be waived as long as the Monitoring Coalition agrees
to sample hardness at the nearest upstream location, at a minimum frequency of quarterly, and the Permittee
has obtained approval from DWR - NPDES Permitting Unit that the upstream station being monitored by the
Coalition is representative of the receiving stream for this discharge. The Permittee is responsible for
submitting instream hardness test results with its permit renewal application package. If Coalition membership
is cancelled or the Coalition terminates instream hardness sampling at the approved station, the Permittee will
immediately notify the Division and resume sampling for instream hardness, upstream of its discharge.
(b.) If the instream dissolved oxygen concentration falls to 5.5 mg/L or less, a synoptic sampling run
will be required for that day of monitoring. When triggered by the DO threshold, the synoptic
sampling run should be carried out at the following sites on the Tar River main stem:
• At the mouth of the Moyes Run
• At Yankee Hall Road
• 200 feet upstream of the mouth of Grindle Creek
• At Grimesland Bridge
• At the mouth of the unnamed embayment on the north bank of the river
approximately two miles downstream of Grimesland Bridge.
At each site during the synoptic run, sampling shall be done for temperature, dissolved oxygen
and conductivity. All samples must be collected at midstream at a depth of about 0.1 meters.
Samples at the upstream site (500 feet above the mouth of Barber Creek) and at Yankee Hall Road
shall be done at a frequency of once per week during the months of June through September when
triggered by the low DO threshold. In addition, whenever sampling runs are triggered,
Page 4 of 14

Permit NCO023931
chlorophyll -a must be monitored at the upstream site, at Yankee Hall Road and at Grimesland
Bridge.
(c.) During the months of October through May, instream monitoring need only be performed
monthly, and may be done upstream at Town Commons Park and downstream at Grimesland
Bridge so as not to necessitate putting a boat in the river. Samples should be collected by the same
methods and for the same parameters as those required during the stipulated summer period, with
the exception of chlorophyll -a.
(d.) Instream monitoring requirements in A.(2) (a), (b) and (c) are waived as long as the Permittee
maintains membership in the Tar -Pamlico Basin Association. If Permittee ceases membership, then
all instream monitoring requirements specified in this permit are immediately reinstated.
A. (3.) CALCULATION OF TOTAL NITROGEN AND TOTAL PHOSPHORUS LOADS
[G.S.143-215.1(b)]
(a.) The Permittee shall calculate monthly and annual TN Loads as follows:
(i.) Monthly TN (or TP) Load (lb/mo) = TN (or TP) x TMF x 8.34
where:
TN or TP = the average Total Nitrogen or Total Phosphorus concentration
(mg/L) of the composite samples collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the
month (MG/ mo)
8.34 = conversion factor, from (mg/L x MG) to pounds
(ii.) Annual TN (or TP) Load (lb/yr) = Sum of the 12 Monthly TN (or TP) Loads for the
calendar year
(b) The Permittee shall report monthly Total Nitrogen and Total Phosphorus results (mg/L and lb/mo)
in the appropriate discharge monitoring report for each month and shall report each calendar year's
results (lb/yr) with the December report for that year.
A. (4.) ANNUAL LIMITS FOR TOTAL NITROGEN OR TOTAL PHOSPHORUS
[G.S. 143-215.1(b)]
(a.) Total Nitrogen (TN) and Total Phosphorus (TP) allocations and load limits for NPDES
dischargers in the Tar -Pamlico River basin are annual limits and apply on a calendar year basis.
(b.) For any given calendar year, the Permittee shall be in compliance with the annual TN (or TP)
Load limit in this Permit if:
(i.) the Permittee's annual TN (or TP) Load is less than or equal to the effective limit, or
(ii.) the Permittee is a Co-Permittee Member of a compliance association.
(c.) If the Permittee is not a co-permittee member of a compliance association and the Permittee's
cumulative annual TN (or TP) discharge exceeds the effective TN (or TP) Load limit in this permit
at any point during the calendar year, the Permittee is in violation of its TN (or TP) Load limit for
the remainder of the calendar year, and each day of continuing violation shall constitute a
separate violation. Compliance with annual limits shall be determined separately for each
calendar year, and an exceedance in one year does not carry forward to subsequent years.
Page 5 of 14

Permit NCO023931
(d.) The TN (or TP) Load limit in this Permit (if any) may be modified as the result of allowable
changes in the Permittee's allocations.
(i.) Allowable changes include those resulting from purchase of TN (or TP) allocation from an
authorized mitigation banker, the Ecosystem Enhancement Program, or other source
allowed under applicable regulations; purchase, sale, trade, or lease of allocation between
the Permittee and other dischargers; and other transactions approved by the Division and
consistent with the Tar -Pamlico River Basin Association Agreement, as revised.
(ii.) The Permittee may request a modification of the TN (or TP) Load limit in this Permit to
reflect allowable changes in its allocation(s). Upon receipt of timely and proper application,
the Division will modify the permit as appropriate and in accordance with state and federal
program requirements.
(iii.) Changes in TN (or TP) limits become effective on January 1 of the year following permit
modification. The Division must receive application no later than August 31 for changes
proposed for the following calendar year.
(iv.) Application shall be sent to:
NCDWR / Wastewater Permits Branch
Attn: Tar -Pamlico River Basin Coordinator
1617 Mail Service Center
Raleigh, NC 27699-1617
(e.) If the Permittee is a member and co-permittee of an approved compliance association on January
1 of a given year, its TN and TP discharges during that year are governed by that association's
group NPDES permit and the limits therein.
(i.) The Permittee shall be considered a Co-Permittee Member for any given calendar year in
which it is identified as such in Appendix A of the association's group NPDES permit.
(ii.) Association roster(s) and members' TN and TP allocations will be updated annually and in
accordance with state and federal program requirements.
(iii.) If the Permittee intends to join or leave a compliance association, the Division must be
notified of the proposed action in accordance with the procedures defined in the
association's NPDES permit.
(A) Upon receipt of timely and proper notification, the Division will modify the permit as
appropriate and in accordance with state and federal program requirements.
(B) Membership changes in a compliance association become effective on January 1 of the
year following modification of the association's permit.
(f.) The TN and TP monitoring and reporting requirements in this Permit remain in effect throughout
the term of the Permit and are not affected by the Permittee's membership in a compliance
association.
Page 6 of 14

Permit NC0023931
A. (5.) NUTRIENT ALLOCATIONS
[G.S. 143-215.1(b)]
(a.) Total Nitrogen (TN) and Total Phosphorus (TP) allocations represent the maximum TN and TP
loads that a discharger or group of dischargers is potentially allowed under the Tar -Pamlico
nutrient management strategy. Allocations are not enforceable limits but are the basis for TN and
TP limits established in individual or group NPDES permits.
(b.) The allocations originally assigned to the Tar -Pamlico Basin Association members total 889,274
lb/yr (404,274 kg/yr) TN and 160,372 lb/yr (73,060 kg/yr) TP. These group allocations have been
divided among the members in proportion to the maximum permitted flow in each member's
permit; that is,
Individual Permitted Flow
Individual Allocation (TP or (MGD) x Group Allocation, TPBA (TN
TN) = Total Permitted Flow, TPBA or TP)
(MGD)
For the purposes of this distribution, individual permitted flows for the Association members are those
in effect as of July 2014 and result in a Total Permitted Flow of 62.495 MGD.
(c.) The following table lists, for information purposes only, the TN and TP allocations assigned to,
acquired by, or transferred to the Permittee in accordance with the Tar -Pamlico River Basin Phase
IV Agreement. Applicable TN or TP limits are established in the Effluent Limitations conditions
of this permit or in the NPDES permit of a compliance association of which the Permittee is a Co-
Permittee Member.
Allocation Type
Source
Date
Allocation amount
Status
Ib/ r
k / r
Tar -Pamlico River
Total Nitrogen
Basin Phase IV
7/9/2015
249,576
113,206
Active
Agreement
Tar -Pamlico River
Total Phosphorus
Basin Phase IV
7/9/2015
45,103
20,458
Active
Agreement
(d.) Any addition, deletion, or modification of the listed allocation(s) (other than to correct
typographical errors) or any change from Reserve to Active status of any of the listed allocations
shall be considered a major modification of this permit and shall be subject to the public review
process afforded such modifications under state and federal rules.
Page 7 of 14

Permit NCO023931
A.(6.) 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 20%.
The permit holder shall perform at a minimum, uag rterl 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
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.
If the test procedure performed as the first test of any single quarter results in a failure or 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 electronically using
the Division's eDMR system 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, 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, 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.
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.
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 8 of 14

Permit NCO023931
A.(7.) EFFLUENT POLLUTANT SCAN
[G.S.143-215.1(b)]
a. 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: 2022, 2023, and 2024.
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)
C0610
Trans-1,2-dichloroethylene
34546
Bis (2-chloroethyl) ether
34273
Chlorine (total residual, TRC)
50060
1,1-dichloroethylene
34501
Bis (2-chloroisopropyl) ether
34283
Dissolved oxygen
00300
1,2-dichloropropane
C0541
Bis (2-ethylhexyl) phthalate
C0100
Nitrate / Nitrite
00630
1,3-dichloropropylene
77163
4-bromophenyl phenyl ether
34636
Kjeldahl nitrogen
00625
Ethylbenzene
34371
Butyl benzyl phthalate
34292
Oil and grease
00556
Methyl bromide
34413
2-chloronaphthalene
34581
Phosphorus
C0665
Methyl chloride
34418
4-chlorophenyl phenyl ether
34641
Total dissolved solids
70295
Methylene chloride
34423
Chrysene
34320
Hardness
00900
1,1,2,2-tetrachloroethane
81549
Di-n-butyl phthalate
39110
Antimony
01097
Tetrachloroethylene
34475
Di-n-octyl phthalate
34596
Arsenic
01002
Toluene
34010
Dibenzo(a,h)anthracene
34556
Beryllium
01012
1,1,1-tichloroehane
34506
1,2-dichlorobenzene
34536
Cadmium
01027
1,1,2-tichloroehane
34511
1,3-dichlorobenzene
34566
Chromium
C0034
Trichloroethylene
39180
1,4-dichlorobenzene
34571
Copper
01042
Vinyl chloride
39175
3,3-dichlorobenzidine
34631
Lead
01051
Acid -extractable compounds:
Diethyl phthalate
34336
Mercury (Method 1631E)
COMER
P-chloro-m-cresol
34452
Dimethyl phthalate
34341
Nickel
01067
2-chlorophenol
34586
2,4-dinitrotoluene
34611
Selenium
01147
2,4-dichlorophenol
34601
2,6-dinitrotoluene
C0626
Silver
01077
2,4-dimethylphenol
34606
1,2-diphenylhydrazine
34346
Thallium
01059
4,6-dinitro-o-cresol
34657
Fluoranthene
C0376
Zinc
01092
2,4-dinitrophenol
34616
Fluorene
34381
Cyanide
00720
2-nitrophenol
34591
Hexachlorobenzene
C0700
Total phenolic compounds
32730
4-nitrophenol
34646
Hexachlorobutadiene
C0702
Volatile organic compounds:
Pentachlorophenol
39032
Hexachlorocyclo-pentadiene
34386
Acrolein
34210
Phenol
34694
Hexachloroethane
34396
Acrylonitrile
34215
2,4,6-trichlorophenol
34621
Indeno(1,2,3-cd)pyrene
34403
Benzene
34030
Base -neutral compounds:
Isophorone
34408
Bromoform
32104
Acenaphthene
34205
Naphthalene
34696
Carbon tetrachloride
32102
Acenaphthylene
34200
Nitrobenzene
34447
Chlorobenzene
34301
Anthracene
CO220
N-nitrosodi-n-propylamine
34428
Chlorodibromomethane
34306
Benzidine
39120
N-nitrosodimethylamine
34438
Chloroethane
85811
Benzo(a)anthracene
C0526
N-nitrosodiphenylamine
34433
2-chloroethyl vinyl ether
34576
Benzo(a)pyrene
34247
Phenanthrene
34461
Chloroform
32106
3,4 benzofluoranthene
34230
Pyrene
34469
Dichlorobromomethane
32101
Benzo(ghi)perylene
34521
1,2,4-trichlorobenzene
C0551
1,1-dichloroethane
34496
Benzo(k)fluoranthene
34242
1,2-dichloroethane
32103
Bis (2-chloroethoxy) methane
34278
b. Reporting. Test results shall be reported electronically using the Divisions eDMR system or on
DWR Form DMR-PPA-1(or on a form approved by the Director) by December 31st of each
designated sampling year.
C. The Permittee must at least report completion of the test in the eDMR system by entering "1" or
"Y" for parameter code NC01 - Annual Pollutant Scan. If utilizing the DWR Form submit to the
following address:
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NC DEQ/DWR/NPDES Files,1617 Mail Service Center, Raleigh, North Carolina 27699-1617.
Or the form may be uploaded at: https:/ /edocs.deq.nc.gov/Forms/NPDES_WW-EDMR-
Supplemental-Form
d. 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
Or, results can be sent to the email, ATForms.ATB@ncdenr. ov.
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.
A.(8.) 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. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)l
The Permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
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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.
NPDES Electronic Reporting Rule - Phase 2 Extension. EPA is proposing to extend the Phase 2
deadline from December 21, 2020, to December 21, 2025. The current compliance date will be
extended if the implementation date is extended as a final regulation change in the federal register.
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.
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Permit NC0023931
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-system-npdes-electronic-re]orting-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:
httn: / / dea.nc.zov / about / divisions /water -resources / edmr
4. S�i,natory Requirements [Sup lements 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
I1, 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.
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:
htt2://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 122.221. 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
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Permit NCO023931
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 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].
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Permit NCO023931
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Greenville Utilities Commission WWTP Facility Location (not to scale)
Pitt County AAA
Latitude: 35° 35' 56" N Permitted Flow: 17.5 MGD J, Y
Longitude: 772 18' 06" W Stream Class: C - NSW A
Receiving Stream: Tar River HUC: 03020103 N
Drainage Basin: Tar -Pamlico River Basin Sub -Basin: 03-03-05
State Grid: Greenville SE NPDES Permit NCO023931
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