HomeMy WebLinkAboutNC0023949_Draft Permit_20190417 4.
ROY COOPER i .Is
Governor
MICHAEL S.REGAN
Secretary .z!„'"*F
LINDA CULPEPPER NORTH CAROLINA
Director Environmental Quality
April 17, 2019
Mr. Scott Stevens
City Manager
City of Goldsboro
PO Drawer A
Goldsboro, North Carolina 27533-9701
Subject: Draft NPDES Permit Renewal
Permit NC0023949
Goldsboro WRF
Wayne County
Grade IV Biological WPCS
SIC Code 4952
Dear Mr. Stevens:
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:
• Based on the reasonable potential analysis (RPA) showing no reasonable potential to
violate state water quality standards, the monitoring requirement for total copper has been
removed from the permit [See A.(1)].
• Based on Mercury TMDL evaluation showing all reported mercury values at levels < 1
ng/L, the Special Condition for the Mercury Minimization Plan has been removed from
the permit.
• 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, has been added to
the permit at a monitoring frequency of quarterly [See A.(1.), A.(2.) and A.(3.)].
• Some of the wording has changed in Special Condition A. (8.), Chronic Toxicity Permit
Limit, please review each paragraph carefully.
• Special Condition A.(11.)Effluent Pollutant Scan has been modified to include the specific
three years in which the Effluent Pollutant Scan shall be performed(2021,2022,and 2023).
In addition, at the end of the Special Condition, 2nd species Toxicity Testing Requirements
for municipal permit renewals per Federal Regulations [40 CFR 122.21(j)(5)] have been
added.
D_E QJ- North
512North Carolina DeSalisburypartmentStreet1 of1617 EnvirMailonmentalService Center i Ral Quality I Division
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, 699-1617
NORTH CAROLINA
�imntdmanWt\/'" 919.707.9000
• As multiple species toxicity testing requirement language has been added to Special
Condition A.(11.) Effluent Pollutant Scan, the Special Condition for Multiple Species
Toxicity Testing has been removed from the permit.
• 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 Special Condition A.(12.)].
• Parameter codes have been added to the Effluent Limitations and Monitoring Requirements
[ See A.(1.),A.(2.) and A.(3.)].
• Regulatory citations have been added to the permit.
The NPDES Standard Conditions (Parts II, III, and IV) are not included with this draft. The latest
version is available at https://bit.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 Wayne 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 call me at(919) 707-3609 or by email at nick.coco@ncdenr.gov.
Sincerely,
Nick Coco, Engineer
NPDES Complex Permitting Unit
Hardcopy: NPDES Files
Ecopy: DWR/Washington Regional Office/Water Quality/Robert Tankard
US EPA Region 4
DWR/Operator Certification Program/Maureen Kinney
DWR/Aquatic Toxicology Branch/Susan Meadows
DWR/Water Sciences Section/Ecosystems Branch/Mark Vander Borgh
City of Goldsboro/Utility Deputy Public Works Director/Mike Wagner
Page 2 of 2
Permit NC0023949
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 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,
City of Goldsboro
is hereby authorized to discharge wastewater from a facility located at
Goldsboro Water Reclamation Facility
714 Arrington Bridge Road (NCSR 1915)
Goldsboro
Wayne County
to receiving waters designated as the Neuse River in the Neuse River Basin in accordance with the
discharge limitations, monitoring requirements,and other conditions set forth in Parts I,II, III,and
IV hereof.
This permit shall become effective Month xx, 2019.
This permit and the authorization to discharge shall expire at midnight on January 31, 2024.
Signed this day Month xx,2019.
DRAFT
Linda Culpepper,Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit NC0023949
PP SU CEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge, are hereby revoked. (The
exclusive authority to operate this facility arises under this permit. The authority to operate the facility under
previously issued permits bearing this number is no longer effective.] The conditions, requirements, terms and
provisions of this permit authorizing discharge under the NPDES govern discharges from this facility.
City of Goldsboro
is hereby authorized to:
1. Continue to operate the existing wastewater treatment plant,which is approved for an
average design flow of 14.2 MGD and consists of:
• five equalization basins (approximately 374 MG total volume)
• flow meter
• aerated grit chamber
• activated sludge units with biological nutrient removal and integral clarifiers
• RAS and WAS pump stations
• tertiary sand filters
• ultraviolet disinfection
• post-aeration
• flood-level effluent pump station
• residuals treatment/storage
2. Upon receipt of an Authorization to Construct permit from the Division,construct and,
after submittal of an engineer's certification,to operate a 17.6 MGD wastewater treatment
system.
3. Continue to operate a wetlands polishing system with capacity to provide advanced
treatment for up to 4.0 MGD of said treatment plant's effluent.
4. Discharge treated wastewaters from the treatment plant(Outfall 001) and from the
wetlands polishing system(Outfall 002) into the Neuse River,currently classified C-NSW
waters in the Neuse River Basin, at the locations specified on the attached map.
5. Continue to operate a water reclamation and distribution system to provide beneficial
reuse for treated effluent from the treatment plant, as approved pursuant to Permit No.
WQ0017791.
Page 2 of 18
Permit NC0023949
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS -
Outfall 001 (14.2 MGD)
[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 the permit and lasting until expansion above 14.2 MGD or
permit expiration,whichever is first,the permittee is authorized to discharge treated
municipal wastewater from Outfall 001 subject to the following effluent limitations and
monitoring) requirements:
PARAMETER EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS
Parameter Code Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location2
Flow(MGD) 50050 14.2 MGD Continuous Recording El
Total Monthly Flow(MG) 82220 Monitor&Report Monthly Calculated E1
CBOD, 5-day, 20°C
Summer3(April 1 - 80082 4.0 mg/L 6.0 mg/L Daily Composite I1, E1
October 31)
CBOD, 5-day, 20°C
Winter3(November 1 - 80082 8.0 mg/L 12.0 mg/L Daily Composite Il, E1
March 31)
Total Suspended Solids3 C0530 30.0 mg/L 45.0 mg/L Daily Composite I1, El
Ammonia (NH3 as N) C0610 1.0 mg/L 3.0 mg/L Daily Composite El
(April 1 -October 31)
Ammonia (NH3 as N)
(November 1 - March C0610 2.0 mg/L 6.0 mg/L Daily Composite El
31)
Dissolved Oxygen 00300 Daily average not less than 6.0 mg/L Daily Grab El
Fecal Coliform 31616 200/100 mL 400/100 mL Daily Grab El
(geometric mean)
Total Hardness 4[as 00900 Quarterly Composite El
CaCO3] (mg/L)
Total Residual Chlorine 50060 28 pg/L DailyGrab El
(TRC)s
TKN (mg/L) 00625 Monitor&Report 1/Week Composite El
NO2-N + NO3-N (mg/L) 00630 Monitor&Report 1/Week Composite El
TN (mg/L)6 C0600 Monitor&Report 1/Week Composite E1
QM600 Monitor&Report Monthly Calculated E1
TN Load QY600 199,822 lb/year(Annual Mass Loading)8 Annually Calculated El
Total C0665 2.0 mg/L(Quarterly Average) 1/Week Composite El
Phosphorous
Temperature(°C) 00010 Daily Grab El
6.0 and 9.0 standard units Daily 00400 Between Grab El
Chronic TGP3B Quarterly po Com site El
Toxicity10
Effluent Pollutant Scan NC01 Monitor and Report Footnote 11 E1
Page 3 of 18
Permit NC0023949
PARAMETER EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS
Parameter Code Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location2
Dissolved Oxygen 00300 Variable2 Grab U, D
Temperature(°C) 00010 Variable2 Grab U,D
Total Hardness[as 00900 Quarterly Grab U
CaCO3]12(mg/L) Q Y
Footnotes:
1. Submit discharge monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A.(12).
2. Sample locations: El-Effluent to Outfall 001,I1-Influent to WRF,U-Upstream at US Highway 117 South Bridge,
D-Downstream at Highway 111 Broadhurst Bridge. Stream samples shall be grab samples and shall be collected
3/Week during June-September and 1/Week during the remaining months of the year. Instream monitoring is
provisionally waived in light of the permittee's participation in the Lower Neuse Basin Association. Instream
monitoring shall be conducted as stated in this permit should the permittee end its participation in the Association.
See Condition A.(10.)regarding potential sampling exemption.
3. The monthly average effluent CBOD5 and Total Suspended Solids concentrations shall not exceed 15%of the
respective influent value(85%removal).
4. Effluent hardness sampling should be performed in conjunction with the effluent metals for the pretreatment
program.
5. Total residual chlorine is required only if chlorine is used as a disinfectant(or elsewhere in the process). The facility
shall report all effluent total residual chlorine values reported by a NC certified laboratory including field certified.
However,effluent values below 50 µg/L will be treated as zero for compliance purposes.
6. For a given wastewater sample,TN=TKN+NO3-N+NO2-N,where TN is Total Nitrogen,TKN is Total Kjeldahl
Nitrogen,and NO3-N+NO2-N are Nitrate and Nitrite Nitrogen,respectively.
7. TN Load is the mass quantity of Total Nitrogen discharged in a period of time. Mass loadings for Outfalls 001 and
002 shall be monitored and calculated as prescribed in Condition A.(5.),and the combined annual mass loadings of
the two outfalls shall not exceed the specified TN limit. See Special Condition A.(5.),Calculation of TN Loads.
8. Compliance with this limit shall be determined in accordance with Special Condition A.(6.),Annual Limits for Total
Nitrogen.
9. The quarterly average for total phosphorus shall be the average of composite samples collected weekly during the
calendar quarter(January-March,April-June,July-September,October-December).
10. Chronic Toxicity(Ceriodaphnia dubia)P/F at 7.5%:January,April,July,and October[see Special Condition A.(8.)].
Toxicity monitoring shall coincide with metals monitoring.
11. The permittee shall perform three Effluent Pollutant Scans during the term of this permit[see A.(11.)].
12. The Permittee shall sample 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
upstream 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 upstream hardness test results with its permit
renewal application package.If Coalition membership is cancelled or the Coalition terminates upstream hardness
sampling at the approved station,the Permittee will immediately notify the Division and resume sampling for
upstream hardness,upstream of its discharge.
(b.) There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 18
Permit NCO 2 949
0 3
A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall
001 [17.6 MGD]
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water
Pollution Control System [15A NCAC 08G .0302]
(a.) Beginning upon start-up of treatment facilities with average design flow of 17.6 MGD, and
lasting no later than the expiration date of this permit, the permittee is authorized to
discharge treated municipal wastewater from Outfall 001 subject to the following effluent
limitations and monitoring] requirements:
PARAMETER EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS
Parameter Code Monthly Weekly Daily Measurement Sample Sample
Average Average , Maximum Frequency Type Location
Flow (MGD) 50050 17.6 MGD Continuous Recording El
Total Monthly Flow(MG) 82220 Monitor&Report Monthly Calculated El
CBOD, 5-day, 20°C
Summer3 (April 1 - 80082 4.0 mg/L 6.0 mg/L Daily Composite I1, El
October 31)
CBOD, 5-day, 20°C
Winter3(November 1 - 80082 8.0 mg/L 12.0 mg/L Daily Composite I1, El
March 31)
Total Suspended Solids3 C0530 30.0 mg/L 45.0 mg/L Daily Composite 11, El
Ammonia (NH3 as N) CO610 1.0 mg/L 3.0 mg/L Daily Composite El
(April 1 -October 31)
Ammonia (NH3 as N)
(November 1 - March C0610 2.0 mg/L 6.0 mg/L Daily Composite El
31)
Dissolved Oxygen 00300 Daily average not less than 6.0 mg/L Daily Grab El
Fecal Coliform 31616 200/100 mL 400/100 mL Daily Grab El
(geometric mean)
Total Hardness 4[as 00900 Quarterly Composite El
CaCO3] (mg/L)4
Residual Chlorine 50060 28 pg/L DailyGrab El
(TRC)5
TKN (mg/L) 00625 Monitor&Report 1/Week Composite El
NO2-N + NO3-N (mg/L) 00630 Monitor& Report 1/Week Composite El
TN (mg/L)6 C0600 Monitor& Report 1/Week Composite El
QM600 Monitor& Report Monthly Calculated El
TN Load7 QY600 199,822 lb/year(Annual Mass Loading)x Annually Calculated El
Total C0665 2.0 mg/L(Quarterly Average) 1/Week Composite El
Phosphorous9
Temperature (°C) 00010 Daily Grab El
pH 00400 Between 6.0 and 9.0 standard units Daily Grab El
Chronic TGP3B QuarterlyComposite El
Toxicity° p
Effluent Pollutant Scan NC01 Monitor and Report Footnote 11 El
Dissolved Oxygen 00300 Variable2 Grab U, D
Page 5 of 18
Permit NC0023949
PARAMETER EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS
Parameter Code Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location
Temperature(°C) 00010 Variable2 Grab U, D
Total Hardness[as 00900 Quarterly Grab U
CaCO3]12(mg/L) Q Y
Footnotes:
1. Submit discharge monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A.(12).
2. Sample locations: El-Effluent to Outfall 001,II-Influent to WRF,U-Upstream at US Highway 117 South
Bridge,D-Downstream at Highway 111 Broadhurst Bridge. Stream samples shall be grab samples and shall be
collected 3/Week during June-September and 1/Week during the remaining months of the year. Instream
monitoring is provisionally waived in light of the permittee's participation in the Lower Neuse Basin Association.
Instream monitoring shall be conducted as stated in this permit should the permittee end its participation in the
Association.See Condition A.(10.)regarding potential sampling exemption.
3. The monthly average effluent CBOD5 and Total Suspended Solids concentrations shall not exceed 15%of the
respective influent value(85%removal).
4. Effluent hardness sampling should be performed in conjunction with the effluent metals for the pretreatment
program.
5. Total residual chlorine is required only if chlorine is used as a disinfectant(or elsewhere in the process).The
facility shall report all effluent total residual chlorine values reported by a NC certified laboratory including field
certified. However,effluent values below 50 µg/L will be treated as zero for compliance purposes.
6. For a given wastewater sample,TN=TKN+NO3-N+NO2-N,where TN is Total Nitrogen,TKN is Total Kjeldahl
Nitrogen,and NO3-N+NO2-N are Nitrate and Nitrite Nitrogen,respectively.
7. TN Load is the mass quantity of Total Nitrogen discharged in a period of time. Mass loadings for Outfalls 001 and
002 shall be monitored and calculated as prescribed in Condition A.(5.),and the combined annual mass loadings of
the two outfalls shall not exceed the specified TN limit. See Special Condition A.(5.),Calculation of TN Loads.
8. Compliance with this limit shall be determined in accordance with Special Condition A.(6.),Annual Limits for
Total Nitrogen.
9. The quarterly average for total phosphorus shall be the average of composite samples collected weekly during the
calendar quarter(January-March,April-June,July-September,October-December).
10. Chronic Toxicity(Ceriodaphnia dubia)P/F at 7.5%:January,April,July,and October[see Special Condition
A.(8.)]. Toxicity monitoring shall coincide with metals monitoring.
11. The permittee shall perform three Effluent Pollutant Scans during the term of this permit[see A.(11.)].
12. The Permittee shall sample 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
upstream 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 upstream hardness test results
with its permit renewal application package.If Coalition membership is cancelled or the Coalition terminates
upstream hardness sampling at the approved station,the Permittee will immediately notify the Division and
resume sampling for upstream hardness,upstream of its discharge.
(b.) There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 6 of 18
Permit NC0023949
A.(3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall
002 [4.0 MGD]
[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 and lasting until the expiration date of this permit,the
permittee is authorized to discharge treated municipal wastewater from Outfall 002 subject
to the following effluent limitations and monitoring) requirements:
PARAMETER EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS
Parameter Code Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location2
Flow 50050 4.0 MGD Continuous Recording I2
Flow(MGD) 50050 Continuous Recording E2
CBOD, 5-day, 20°C
Summer(April 1 - 80082 4.0 mg/L 6.0 mg/L Daily Composite E2
October 31)
CBOD, 5-day, 20°C
Winter(November 1 - 80082 8.0 mg/L 12.0 mg/L Daily Composite E2
March 31)
Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L Daily Composite E2
Ammonia (NH3 as N) C0610 1.0 mg/L 3.0 mg/L Daily Composite E2
(April 1 -October 31)
Ammonia (NH3 as N)
(November 1 - March C0610 2.0 mg/L 6.0 mg/L Daily Composite E2
31)
Dissolved Oxygen 00300 Daily Grab E2
(mg/L)
Fecal Coliform 200/100 400/100
(geometric mean) 31616 mL mL Daily Grab E2
Total Hardness[as 00900 Quarterly Composite site E2
CaCO3] (mg/L)3
Total Residual Chlorine 50060 28 pg/L DailyGrab E2
(TRC)4
TKN (mg/L) 00625 Monitor&Report 1/Week Composite E2
NO2-N + NO3-N (mg/L) 00630 Monitor&Report 1/Week Composite E2
TN (mg/L)5 C0600 Monitor&Report 1/Week Composite E2
Total Monthly Flow 82220 Monitor&Report Monthly Calculated E2
(MG)
QM600 Monitor&Report
TN Load6 199,822 lb/year(Annual Mass Monthly Calculated E2
QY600 Loading) Annually Calculated E2
Total Phosphorous$ C0665 2.0 mg/L(Quarterly Average) 1/Week Composite E2
Temperature(°C) 00010 Daily Grab E2
pH 00400 Between 6.0 and 9.0 standard units Daily Grab E2
Conductivity 00094 Daily Grab E2
(uhmos/cm)
Chronic Toxicity9 TGP3B Quarterly Composite E2
Page 7 of 18
Permit NC0023949
A.(3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS-Outfall 002
[4.0 MGD] (Continued)
Footnotes:
1. Submit discharge monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A.(12).
2. Sample locations: E2-Effluent to Outfall 002,at wetlands effluent pump station,I2-Influent to constructed
wetland polishing system.
3. Effluent hardness sampling should be performed in conjunction with the effluent metals for the pretreatment
program.
4. Total residual chlorine monitoring is required only if chlorine is used as a disinfectant(or elsewhere in the
process).The facility shall report all effluent total residual chlorine values reported by a NC certified laboratory
including field certified. However,effluent values below 50 gg/L will be treated as zero for compliance purposes.
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+NO2-N are Nitrate and Nitrite Nitrogen,respectively.
6. TN Load is the mass load of TN discharged by the Permittee in a period of time. Mass loadings for Outfalls 001
and 002 shall be monitored and calculated as prescribed in Condition A.(5.),and the combined annual mass
loadings of the two outfalls shall not exceed the specified TN limit. See Special Condition A.(5.),Calculation of TN
Loads.
7. Compliance with this limit shall be determined in accordance with Special Condition A.(6.),Annual Limits for
Total Nitrogen.
8. The quarterly average for total phosphorus shall be the average of composite samples collected weekly during the
calendar quarter(January-March,April-June,July-September,October-December).
9. Chronic Toxicity(Ceriodaphnia dubia)P/F at 2.2%:January,April,July,and October[see Special Condition A.(8.)].
Toxicity monitoring shall coincide with metals monitoring.
(b.) There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 8 of 18
Permit NC0023949
A.(4.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
[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 the permit and lasting through the expiration date of the
permit, the Permittee is authorized to treat municipal wastewaters subject to the following
flow limitations and monitoring) requirements:
MONITORING REQUIREMENTS
FLOW LIMITATION
Measurement Sample Type Sample Location
Frequency
See Footnote 2 Daily Calculated See Footnotes 3,4
Footnotes:
1. Submit discharge monitoring reports electronically using NC DWR's eDMR application system. See
Special Condition A.(12).
2. The total monthly average flow through the water reclamation facility shall not exceed the flow
limitation currently in effect for Outfall 001,as specified in Condition A.(1.)or A.(2.).
3. The sum of flows to Outfall 001 and to the Reuse Pump Station(includes Outfall 002 and off-site reuse)
shall not exceed the flow limitation specified in Footnote 2. Each of the component flows shall be
measured daily and combined to determine the total daily flow through the plant. The monthly
average flow shall then be calculated as the average of these daily flows.
4. The plant daily and monthly average flows calculated as specified in Footnote 3 shall be reported as
"Flow-WRF" in the permittee's discharge monitoring reports(DMRs)and may be reported on the
DMR forms for Outfa11 001.
A.(5.) CALCULATION OF TOTAL NITROGEN LOADS
[G.S. 143-215.1(b)]
(a.) The Permittee shall calculate monthly and annual TN Loads for each outfall as follows:
(i.) Monthly TN Load (pounds/month) =TN x TMF x 8.34
where: TN = the average Total Nitrogen concentration (mg/L) of the composite
samples collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the month
(MG/month)
8.34 = conversion factor,from (mg/L x MG) to pounds
(ii.) Annual TN Load (pounds/year) =Sum of the 12 Monthly TN Loads for the calendar
year
(b.) The Permittee shall report monthly Total Nitrogen results (mg/L and pounds/month) in the
appropriate discharge monitoring report for each month and shall report each year's results
(pounds/year) with the December report for that year.
Page 9 of 18
Permit NC0023949
A.(6.) ANNUAL LIMITS FOR TOTAL NITROGEN
[G.S. 143-215.1(b)]
(a.) Total Nitrogen (TN) allocations and TN Load limits for NPDES dischargers in the Neuse
River basin apply on a calendar year basis.
(b.) For any given calendar year, the Permittee shall be in compliance with the annual TN Load
limit in this Permit if:
(i.) the Permittee's annual TN discharge is less than or equal to its TN Load 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 discharge exceeds the effective TN Load limit in this permit at any
point during the calendar year, the Permittee is in violation of its TN Load limit,and each
day of a continuing violation shall constitute a separate violation.
(d.) The TN Load limit in this Permit(if any) may be modified as the result of allowable changes
in the Permittee's TN allocation.
(i.) Allowable changes include those resulting from purchase of TN allocation from the
Wetlands Restoration Fund; purchase,sale, trade,or lease of allocation between the
Permittee and other dischargers;regionalization;and other transactions approved by
the Division.
(ii.) The Permittee may request a modification of the TN Load limit in this Permit to reflect
allowable changes in its TN allocation. 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 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:
NCDWQ/ NPDES Programs
Attn: Neuse 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,its TN
discharge during that year is governed by that association's group NPDES permit and the TN
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 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.
Page 10of18
Permit NC0023949
(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 monitoring and reporting requirements in this Permit remain in effect until
expiration of this Permit and are not affected by the Permittee's membership in a compliance
association.
A.(7.) TOTAL NITROGEN ALLOCATIONS
[G.S. 143-215.1(b)]
(a.) The following table lists the Total Nitrogen(TN) allocation(s) assigned to,acquired by, or
transferred to the Permittee in accordance with the Neuse River nutrient management rule
(T15A NCAC 02B .0234) and the status of each as of permit issuance.The allocations in this
table are not enforceable limits nor do they supersede any TN limit(s) established elsewhere
in this permit or in the NPDES permit of a compliance association of which the Permittee is a
Co-Permittee Member.
ALLOCATION AMOUNT(1)
ALLOCATION SOURCE DATE STATUS
TYPE Estuary Discharge
(pounds/year) (pounds/year)
Base Assigned by Rule 12/7/97; 132,455 189,221 Active
(T15A NCAC 02B .0234) 4/1/03
Supplemental Connection of Eureka, 404 578 Active
NC0048062
Supplemental Connection of Wayne Active
County-Genoa IP, --- 5,662 8,088
NC0030392
Supplemental Connection of Walnut 10/11/2003 1,132 1,618 Active
Creek, NC0039233
Supplemental Connection of Wayne Active
County Schools, 11/25/2003 121 173
NC0034801
Supplemental Connection of Wayne Active
County Schools, 11/25/2003 101 144
NC0034819
Total 139,876 199,822 Active
Footnote:
Transport Factor=70%
(b.) Any addition, deletion,or modification of the listed allocation(s) (other than to correct
typographical errors) or any change in 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 11 of 18
Permit NC0023949
A (8.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) - Outfalls 001 and 002
[15A NCAC 02B.0200]
Outfall 001-The effluent discharge shall at no time exhibit observable inhibition of reproduction
or significant mortality to Ceriodaphnia dubia at an effluent concentration of 7.5%at 14.2 MGD
flow regime and 9.1%at 17.6 MGD flow regime.
Outfall 002-The effluent discharge shall at no time exhibit observable inhibition of reproduction
or significant mortality to Ceriodaphnia dubia at an effluent concentration of 2.2%.
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 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.
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 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 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.
Page 12 of 18
Permit NC0023949
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.
A.(9.) NON-DETECTION REPORTING AND DETERMINATION OF COMPLIANCE
[G.S. 143-215.1(b)]
When pursuant to this permit,a pollutant analysis is conducted using an approved analytical
protocol with the appropriate minimum detection level and a result of"non-detectable" or"below
quantitation limit" is obtained, the permittee shall record that result as reported. For the purpose
of determining compliance with a permit limit for the pollutant, the numerical value of that
individual analytical result shall be zero.
A.(10.) POTENTIAL INSTREAM SAMPLING EXEMPTION
[15A NCAC 2B .0505(c)(4)1
Stream sampling (as well as influent/effluent sampling) may be discontinued when flow
conditions could result in injury or death of the person(s) collecting the samples. In such cases,on
each day that sampling is discontinued,written justification shall be specified in the monitoring
report for the month in which the event occurred. This provision shall be strictly construed and
may not be utilized to avoid the requirements of this Section when performance of these
requirements is attainable. When there is discontinuance pursuant to this provision,stream
sampling shall be resumed at the first opportunity after the risk period has ceased.
Page 13 of 18
Permit NC0023949
A.(11.) EFFLUENT POLLUTANT SCAN
[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:2021,2022,and 2023. 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) Trans-1,2-dichloroethylene Bis(2-chloroethyl)ether
Chlorine(total residual,TRC) 1,1-dichloroethylene Bis(2-chloroisopropyl)ether
Dissolved oxygen 1,2-dichloropropane Bis(2-ethylhexyl)phthalate
Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether
Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate
Oil and grease Methyl bromide 2-chloronaphthalene
Phosphorus Methyl chloride 4-chlorophenyl phenyl ether
Total dissolved solids Methylene chloride Chrysene
Hardness 1,1,2,2-tetrachloroethane Di-n-butyl phthalate
Antimony Tetrachloroethylene Di-n-octyl phthalate
Arsenic Toluene Dibenzo(a,h)anthracene
Beryllium 1,1,1-trichloroethane 1,2-dichlorobenzene
Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene
Chromium Trichloroethylene 1,4-dichlorobenzene
Copper Vinyl chloride 3,3-dichlorobenzidine
Lead Acid-extractable compounds: Diethyl phthalate
Mercury(EPA Method 1631E) P-chloro-m-cresol Dimethyl phthalate
Nickel 2-chlorophenol 2,4-dinitrotoluene
Selenium 2,4-dichlorophenol 2,6-dinitrotoluene
Silver 2,4-dimethylphenol 1,2-diphenylhydrazine
Thallium 4,6-dinitro-o-cresol Fluoranthene
Zinc 2,4-dinitrophenol Fluorene
Cyanide 2-nitrophenol Hexachlorobenzene
Total phenolic corn pounds 4-nitrophenol Hexachlorobutadiene
Volatile organic compounds: Pentachlorophenol Hexachlorocyclo-pentadiene
Acrolein Phenol Hexachloroethane
Acrylonitrile 2,4,6-trichlorophenol Indeno(1,2,3-cd)pyrene
Benzene Base-neutral compounds: Isophorone
Bromoform Acenaphthene Naphthalene
Carbon tetrachloride Acenaphthylene Nitrobenzene
Chlorobenzene Anthracene N-nitrosodi-n-propylamine
Chlorodibromomethane Benzidine N-nitrosodimethylamine
Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine
2-chloroethylvinyl ether Benzo(a)pyrene Phenanthrene
Chloroform 3,4 benzofluoranthene Pyrene
Dichlorobromomethane Benzo(ghi)perylene 1,2,4-trichlorobenzene
1,1-dichloroethane Benzo(k)fluoranthene
1,2-dichloroethane Bis(2-chloroethoxy)methane
Page 14 of 18
Permit NC0023949
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
122.21(j)(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.
A.(12.)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 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)1
The permittee shall report discharge monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report(eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month
and submitted electronically using eDMR. The eDMR system allows permitted facilities to
Page 15 of 18
Permit NC0023949
enter monitoring data and submit DMRs electronically using the internet. Until such time that
the state's eDMR application is compliant with EPA's Cross-Media Electronic Reporting
Regulation (CROMERR),permittees will be required to submit all discharge monitoring data to
the state electronically using eDMR and will be required to complete the eDMR submission by
printing,signing,and submitting one signed original and a copy of the computer printed
eDMR to the following address:
NC DEQ/ Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access,then a temporary waiver from the NPDES electronic reporting requirements
may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1,
1.1,2,3) or alternative forms approved by the Director. Duplicate signed copies shall be
submitted to the mailing address above. See"How to Request a Waiver from Electronic
Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month
following the issuance of the permit or in the case of a new facility,on the last day of the month
following the commencement of discharge.
Starting on December 21,2020, the permittee must electronically report the following
compliance monitoring data and reports,when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports;and
• Clean Water Act(CWA)Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see"How to Request
a Waiver from Electronic Reporting" section below).
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:
Page 16of18
Permit NC0023949
https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-pollutant-
discharge-elimination-system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the"Reporting Requirements" section
above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain
an electronic reporting waiver,a permittee must first submit an electronic reporting waiver
request to the Division. Requests for temporary electronic reporting waivers must be
submitted in writing to the Division for written approval at least sixty (60) days prior to the
date the facility would be required under this permit to begin submitting monitoring data and
reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon
expire. At such time,monitoring data and reports shall be submitted electronically to the
Division unless the permittee re-applies for and is granted a new temporary electronic
reporting waiver by the Division. Approved electronic reporting waivers are not transferrable.
Only permittees with an approved reporting waiver request may submit monitoring data and
reports on paper to the Division for the period that the approved reporting waiver request is
effective.
Information on eDMR and the application for a temporary electronic reporting waiver are
found on the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.)
Id)!
All eDMRs submitted to the permit issuing authority shall be signed by a person described in
Part II,Section B. (11.)(a) or by a duly authorized representative of that person as described in
Part 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:
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"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
Page 17 of 18
Permit NC0023949
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.)l
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 122.411.
•
Page 18 of 18
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VICINITY MAP City of Goldsboro NC0023949
N
Goldsboro Water Reclamation Facility
Facility Location
Receiving Stream: Neuse River
SCALE Stream Classification: C NSW
USGS Quad #: F26SE, F27SW 1:24,000 River Basin: Neuse
(1"= 2000') Sub-Basin #: 03-04-05