NC0024236_Fact Sheet_20231205

Fact Sheet
NPDES Permit No. NCO024236
Permit Writer/Email Contact:Nick Coco,[e-mail]
Date:November 14,2023
Division/Branch:NC Division of Water Resources/NPDES Municipal Permitting
Fact Sheet Template: Version 09Jan2017
Permitting Action:
® Renewal
❑ Renewal with Expansion
❑ New Discharge
❑ Modification(Fact Sheet should be tailored to mod request)
Note: A complete application should include the following:
• For New Dischargers,EPA Form 2A or 2D requirements,Engineering Alternatives Analysis,Fee
• For Existing Dischargers (POTW),EPA Form 2A, 3 effluent pollutant scans,4 2nd species WET
tests.
• For Existing Dischargers (Non-POTW),EPA Form 2C with correct analytical requirements based
on industry category.
Complete applicable sections below. If not applicable,enter NA.
1. Basic Facility Information
Facility Information
Applicant/Facility Name: City of Kinston/Johnnie Mosley Regional Water Reclamation Facility
(WRF)
Applicant Address: 2101 Becton Farm Road,Kinston,NC 28501
Facility Address: 2101 Becton Farm Road,Kinston,NC 28501
Permitted Flow: 11.85 MGD
Facility Type/Waste: MAJOR Municipal; 89%domestic, 11% industrial*
Facility Class: Grade IV Biological Water Pollution Control System
Treatment Units: manual bar screen,mechanical bar screen,grit chamber,pre-
anoxic/anaerobic/anoxic/aeration basin, secondary clarifier,
denitrification filter,UV disinfection,post aeration, sludge digester,
filter press,thermal biosolids dryer system
Pretreatment Program(Y/N) Y; LTMP
County: Lenoir
Region Washington
*Based off of permitted flows.
Briefly describe the proposed permitting action and facility background: The City of Kinston applied for
an NPDES permit renewal at 11.85 MGD for the Johnnie Mosley Regional WRF on August 1, 2022. This
facility serves a population of approximately 20,500 residents, as well as 8 significant industrial users,
including 3 categorical industrial users(CIUs),via a Division-approved pretreatment program. Treated
domestic and industrial wastewater is discharged into the Neuse River, a class C;NSW waterbody in the
Neuse River Basin. No drinking water currently exists below the discharge.
Inflow and Infiltration(1/1): In their application,the City noted an estimated average daily 1/1 flow of 3.9
MGD. In discussion with the City's Environmental Compliance Supervisor, it was explained that the 1/1
was estimated by comparing the City's total sewer gallons billed to the plant's total gallons treated. The
City has performed smoke testing of the Lower Neuse Outfall and located areas of concern. In addition,
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the City has conducted CCTV inspections of the service area and located areas in need of repair on the
downtown area of Kinston. As a result,the City has repaired 1,255 linear feet of 8" sewer main and added
14 new service laterals. The Barrus lift station has been rehabilitated as well. The City is funding 4
additional improvement projects to continue addressing issues with I/1.
Sludge disposal: Sludge is land applied as class A sludge via WQ0003919.
2. Receiving Waterbody Information:
Receiving Waterbody Information
Outfalls/Receiving Stream(s): Outfall 001 -Neuse River
Stream Segment: 27-(75.7)
Stream Classification: C;NSW
Drainage Area(mi2): 2552
Summer 7Q10(cfs) 283
Winter 7Q10(cfs): 292
30Q2 (cfs): 572
Average Flow(cfs): 1514
IWC (%effluent): 6.1
2022 303(d) listed/parameter: Not listed
Subject to TMDL/parameter: Yes- State wide Mercury TMDL implementation.
Basin/HUC: Neuse River/03020202
USGS Topo Quad: F28SE Kinston,NC
3. Effluent Data Summary
Effluent data for Outfall 001 is summarized below for the period of January 2019 through June 2023.
Table 1. Effluent Data Summary Outfall 001
Parameter Units Average Max Min Permit
Limit
Flow MGD 4.8 21.43 1.3 MA 11.85
Total Monthly Flow MG/mo 146.6 321.9 86.5 Monitor&
Report
BOD summer mg/l 2.6 118 1.1 WA 7.5
MA 5.0
BOD winter mg/l 2.9 142 1.6 WA 15.0
MA 10.0
NH3N summer mg/l 0.14 3.91 0.04 WA 3.0
MA 1.0
NH3N winter mg/l 0.23 13.84 0.04 WA 6.0
MA 2.0
TSS* mg/l 29.4 12817* 0.5 WA 45.0
MA 30.0
pH SU 6.8 8.28 5.75 6.0>pH S
9.0
Dissolved Oxygen mg/l 8.8 15 2.36 DA>6.0
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(geomean)
(geometric)
Fecal coliform #/100 ml 2.4 2419.6 0.5 WA 400
MA 200
TRC (only when µg/1 N/A;not N/A;not N/A;not DM 288.0
chlorination used) used used used
50
compliance)
Temperature ° C 20.6 29.2 9.4 Monitor&
Report
Conductivity µmhos/cm 1563 3704 190.4 Monitor&
Report
TKN mg/1 1.16 43.34 0.22 Monitor&
Report
NO2+NO3 mg/l 1.20 4.92 0.24 Monitor&
Report
TN mg/l 2.36 43.86 0.54 Monitor&
Report
TN Load lb/mo 3,167 35,646 11149 Monitor&
Report
TN Load lb/yr 39,051 59,470 17,644 126,711
TP mg/l 1.0 31.8 < 1 QA 2.0
Total Hardness mg/l 52 71 34 Monitor&
Report
MA-Monthly Average,WA-Weekly Average,DM-Daily Maximum,DA=Daily Average, QA=Quarterly
Calendar Year Average
*See compliance summary for additional information.
4. Instream Data Summary
Instream monitoring may be required in certain situations, for example: 1)to verify model predictions
when model results for instream DO are within 1 mg/1 of instream standard at full permitted flow; 2)to
verify model predictions for outfall diffuser; 3)to provide data for future TMDL;4)based on other
instream concerns. Instream monitoring may be conducted by the Permittee, and there are also
Monitoring Coalitions established in several basins that conduct instream sampling for the Permittee(in
which case instream monitoring is waived in the permit as long as coalition membership is maintained).
Is this facility a member of a Monitoring Coalition with waived instream monitoring(YIN): YES
Name of Monitoring Coalition: Lower Neuse Basin Association(LNBA)
If applicable, summarize any instream data and what instream monitoring will be proposed for this
permit action: The current permit requires instream monitoring for temperature, dissolved oxygen, fecal
coliform, and conductivity upstream at least 100 feet above the outfall on the Neuse River and
downstream at Highway 55 Bridge.As the permittee is a member of the Lower Neuse River Basin
Association(LNBA)instream monitoring requirements are provisionally waived. The nearest upstream
monitoring station is LNBA station J6150000, located approximately 9 miles upstream of the outfall.No
discharge exists between LNBA station J6150000 and the Johnnie Mosley Regional WRF discharge. The
nearest downstream monitoring station is LNBA station J6250000, located approximately 0.7 miles
downstream of the outfall. Instream data from January 2019 through December 2022 have been
summarized below in Table 2.
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Table 2. Instream Monitoring Data Summary
Upstream J6150000 Downstream J6250000
Parameter Units
Average Max Min Average Max Min
Temperature ° C 20.8 30.7 6.5 20.8 30.8 6.5
DO mg/1 7.7 11.9 4.4 7.7 11.9 4.4
Conductivity µmhos/cm 126 239 57 131 280 55
Fecal coliform #/100 ml (geomean) 1100 13 (geomean) 1200 13
73 76
Hardness mg/1 37.2 297 16 - - -
Ammonia mg/1 0.1 0.48 0.02 0.1 0.35 0.02
NO2+NO3 mg/1 0.54 0.88 0.21 0.54 0.9 0.12
TKN mg/1 0.86 2.53 0.39 0.9 3.04 0.37
TP mg/1 0.11 0.27 0.04 0.11 0.31 0.03
pH s.u. 6.8 7.9 5.8 6.9 7.8 5.4
TSS mg/1 18.1 78 3.7 17.5 67 4.4
Turbidity NTUs 22.2 80 6.2 20.5 70 6.6
Students t-tests were run at a 95% confidence interval to analyze relationships between instream
samples.A statistically significant difference is determined when the t-test p-value result is<0.05.
Downstream temperature was not greater than 32 degrees Celsius [per 15A NCAC 02B .0211 (18)]
during the period reviewed. Downstream temperature was not greater than upstream temperature by more
than 2.8 degrees Celsius during the period reviewed. It was concluded that no statistically significant
difference exists between upstream and downstream temperature.
Average downstream DO was above 5 mg/L [per 15A NCAC 02B .0211 (6)] during the period reviewed.
Downstream DO was not observed at levels less than 4.0 mg/L during the period reviewed. It was
concluded that no statistically significant difference exists between upstream and downstream DO.
It was concluded that no statistically significant difference exists between upstream and downstream
conductivity.
While downstream fecal coliform was observed at levels greater than 400/100mL on two occasions
during the period reviewed, one observance occurred concurrently with elevated upstream fecal coliform
levels greater than 400/100mL. In review of concurrent effluent data, effluent fecal coliform
concentrations were observed at levels lower than the instream concentrations. As such, it does not appear
that effluent fecal coliform is influencing the receiving stream. Additionally,it was concluded that no
statistically significant difference exists between upstream and downstream fecal coliform.
While downstream pH was observed within the range of 6.0 to 9.0 standard units (s.u.) [per 15A NCAC
02B .0211 (14)] on two occasions (both<6.0 s.u.)during the period reviewed, one observance occurred
concurrently with upstream pH lower than 6 s.u. In review of concurrent effluent data, effluent pH were
observed at levels within the range of 6.0 to 9.0 s.u. As such, it does not appear that effluent pH is
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influencing the receiving stream. Additionally, it was concluded that no statistically significant difference
exists between upstream and downstream pH.
It was concluded that no statistically significant difference exists between upstream and downstream
turbidity. While downstream turbidity was observed at levels greater than 50 NTUs [per 15A NCAC 02B
.0211 (2 1)] during the period reviewed on 2 occasions,this observance occurred concurrently with
elevated upstream turbidity levels.
It was concluded that no statistically significant difference exists between upstream and downstream TSS.
It was concluded that no statistically significant difference exists between upstream and downstream
TKN,NO2+NO3,ammonia or total phosphorous. As the receiving stream is classified NSW and the
Johnnie Mosely Regional WRF effluent is limited for Total Nitrogen and Total Phosphorous,instream
monitoring for TKN,NO2+NO3, ammonia and TP have been added to the permit at a monthly frequency.
5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): The limit violations resulting
in enforcement reported at the Johnnie Mosley Regional WRF from August 2018 to August 2023 have
been summarized in Table 3 below.
Table 3.Violation Report Summary
Parameter Year
2018 2019 2020 2021 2022 2023
TSS - 2 7 7 1 2
BOD - 1 1 2 -
H - - - - 2 -
Fecal Coliform - - 2 - - -
Total - - - 1 -phosphorous
In their application,the City noted that the volume of daily I&I is approximately 3.9 MGD. The City has
conducted smoke testing and CCTV inspections to locate areas of concern and set aside funding for 4
improvement projects to rehabilitate the collection system's problem areas to reduce I/I. The 1/1
experienced at the facility has contributed to numerous occasions where violations of total suspended
solids (TSS)limits have occurred as well as instances where denitrification filters were bypassed to
prevent damage. The work conducted by the City on their collection system since 2021 has reduced limit
exceedances for TSS. As the City continues to remedy the issues with their collection system,the bypass
events and limit exceedances will decrease in frequency and/or be eliminated.
Summarize the compliance record with aquatic toxicity test limits and any second species test results
(past 5 years): The facility passed 18 of 18 quarterly chronic toxicity tests as well as all 4 second species
chronic toxicity tests from January 2019 to April 2023.
Summarize the results from the most recent compliance inspection: The last facility inspection conducted
in October 2021 reported that the facility was non-compliant with NPDES permit NC0024236. In their
report,the Washington Regional Office inspector noted several issues experienced at the facility. On the
day of the inspection, one of the mechanical bar screens was down due to a bearing failure. The bar
screen has since been repaired. The City had installed a new effluent sampler but the sampler was unable
to read the flow signal. The City has hired a technician to repair the sampler. In the meantime,the City set
up a portable effluent sampler that is on constant time and constant volume. The belt press and sludge
dryer were not in operation and the sludge holding pads were full on the day of the inspection. The City
contacted Synagro for removal of the sludge from the sludge pads. The belt press is now operational. The
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City is in the process of addressing the issues experienced with their sludge dryer. The City is actively
working on repair of the sludge dryer. The inspector also noted that when the facility experiences high
flows they tend to violate the NPDES permit. It appears that the major reason for this is Inflow and
Infiltration. The City is working on identifying and repairing inflow and infiltration in the collection
system. The last pretreatment inspection conducted in May 2023 reported that the facility was compliant.
6. Water Quality-Based Effluent Limitations (WQBELs)
Dilution and MixingZ ones
In accordance with 15A NCAC 2B.0206,the following streamflows are used for dilution considerations
for development of WQBELs: 1Q10 streamflow(acute Aquatic Life); 7Q10 streamflow(chronic Aquatic
Life;non-carcinogen HH); 30Q2 streamflow(aesthetics); annual average flow(carcinogen,HH).
If applicable, describe any other dilution factors considered(e.g., based on CORMIX model results):NA
If applicable, describe any mixing zones established in accordance with 15A NCAC 2B.0204(b): NA
Oxygen-Consuming Waste Limitations
Limitations for oxygen-consuming waste(e.g., BOD) are generally based on water quality modeling to
ensure protection of the instream dissolved oxygen(DO)water quality standard. Secondary TBEL limits
(e.g., BOD=30 mg/1 for Municipals)may be appropriate if deemed more stringent based on dilution and
model results.
Ifpermit limits are more stringent than TBELs, describe how limits were developed: Limitations for
BOD and ammonia are water quality-based,BAT limits for new and expanded dischargers in the Neuse
River Basin. No changes are proposed.
Ammonia and Total Residual Chlorine Limitations
Limitations for ammonia are based on protection of aquatic life utilizing an ammonia chronic criterion of
1.0 mg/1 (summer) and 1.8 mg/1(winter). Acute ammonia limits are derived from chronic criteria,
utilizing a multiplication factor of 3 for Municipals and a multiplication factor of 5 for Non-Municipals.
Limitations for Total Residual Chlorine(TRC) are based on the NC water quality standard for protection
of aquatic life(17 ug/1)and capped at 28 ug/1(acute impacts). Due to analytical issues,all TRC values
reported below 50 ug/1 are considered compliant with their permit limit.
Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: TRC limits have
been reviewed in the attached WLA and have been found to be protective.No changes are proposed.
See Oxygen-Consuming Waste Limitations for background on existing ammonia limits. The ammonia
limits have been reviewed in the attached WLA and have been found to be protective.No changes are
proposed.
Reasonable Potential Analysis(RPA)for Toxicants
If applicable, conduct RPA analysis and complete information below.
The need for toxicant limits is based upon a demonstration of reasonable potential to exceed water quality
standards, a statistical evaluation that is conducted during every permit renewal utilizing the most recent
effluent data for each outfall. The RPA is conducted in accordance with 40 CFR 122.44(d) (i). The NC
RPA procedure utilizes the following: 1)95% Confidence Level/95%Probability; 2)assumption of zero
background; 3)use of/z detection limit for"less than"values; and 4) streamflows used for dilution
consideration based on 15A NCAC 213.0206. Effective April 6,2016,NC began implementation of
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dissolved metals criteria in the RPA process in accordance with guidance titled NPDES Implementation of
Instream Dissolved Metals Standards, dated June 10,2016.
A reasonable potential analysis was conducted on effluent toxicant data collected between January 2019
and June 2023. Pollutants of concern included toxicants with positive detections and associated water
quality standards/criteria. Based on this analysis,the following permitting actions are proposed for this
permit:
• Effluent Limit with Monitoring. The following parameters will receive a water quality-based
effluent limit(WQBEL) since they demonstrated a reasonable potential to exceed applicable
water quality standards/criteria: None
• Monitoring Only. The following parameters will receive a monitor-only requirement since they
did not demonstrate reasonable potential to exceed applicable water quality standards/criteria,
but the maximum predicted concentration was>50%of the allowable concentration: None
• No Limit or Monitoring: The following parameters will not receive a limit or monitoring, since
they did not demonstrate reasonable potential to exceed applicable water quality
standards/criteria and the maximum predicted concentration was<50%of the allowable
concentration: Total Arsenic, Total Cadmium, Chlorides, Total Chromium, Total Copper, Total
Cyanide, Total Lead, Total Molybdenum, Total Nickel, Total Selenium, Total Silver, Total Zinc
• POTW Effluent Pollutant Scan Review: Three effluent pollutant scans (2020,2021, 2022)were
evaluated for additional pollutants of concern.
o The following parameter(s)will receive a water quality-based effluent limit(WQBEL)
with monitoring, since as part of a limited data set,two samples exceeded the allowable
discharge concentration: None
o The following parameter(s)will receive a monitor-only requirement, since as part of a
limited data set, one sample exceeded the allowable discharge concentration: None
o The following parameters will not receive a limit or monitoring, since they did not
demonstrate reasonable potential to exceed applicable water quality standards/criteria and
the maximum predicted concentration was<50%of the allowable concentration: Total
Beryllium, Total Phenolic Compounds
If applicable, attach a spreadsheet of the RPA results as well as a copy of the Dissolved Metals
Implementation Fact Sheet for freshwater/saltwater to this Fact Sheet. Include a printout of the RPA
Dissolved to Total Metal Calculator sheet if this is a Municipality with a Pretreatment Program.
Toxicity Testing Limitations
Permit limits and monitoring requirements for Whole Effluent Toxicity(WET)have been established in
accordance with Division guidance(per WET Memo, 8/2/1999). Per WET guidance, all NPDES permits
issued to Major facilities or any facility discharging"complex"wastewater(contains anything other than
domestic waste)will contain appropriate WET limits and monitoring requirements,with several
exceptions. The State has received prior EPA approval to use an Alternative WET Test Procedure in
NPDES permits,using single concentration screening tests,with multiple dilution follow-up upon a test
failure.
Describe proposed toxicity test requirement: A chronic WET limit at 6.1%effluent will continue on a
quarterly frequency.
Mercury Statewide TMDL Evaluation
There is a statewide TMDL for mercury approved by EPA in 2012. The TMDL target was to comply
with EPA's mercury fish tissue criteria(0.3 mg/kg) for human health protection. The TMDL established a
wasteload allocation for point sources of 37 kg/year(81 lb/year), and is applicable to municipals and
industrial facilities with known mercury discharges. Given the small contribution of mercury from point
sources(-2%of total load),the TMDL emphasizes mercury minimization plans (MMPs)for point source
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control. Municipal facilities>2 MGD and discharging quantifiable levels of mercury(>1 ng/1)will
receive an MMP requirement. Industrials are evaluated on a case-by-case basis, depending if mercury is a
pollutant of concern. Effluent limits may also be added if annual average effluent concentrations exceed
the WQBEL value(based on the NC WQS of 12 ng/1) and/or if any individual value exceeds a TBEL
value of 47 ng/l.
Table 4. Mercury Effluent Data Summary
2019 2020 2021 2022 2023
#of Samples 4 4 4 5 2
Annual Average Conc. n /L 0.5 0.5 0.5 0.5 0.5
Maximum Conc.,n /L 0.5 0.5 0.5 0.5 0.5
TBEL,n L 47
WQBEL,n /L 196.9
Describe proposed permit actions based on mercury evaluation: Since no annual average mercury
concentration exceeded the WQBEL, and no individual mercury sample exceeded the TBEL,no mercury
limit is required. Since the facility reported no detections of low level mercury(all values> 1 ng/1),no
mercury minimization plan(MMP) is required.
Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation
within this permit: The Environmental Management Commission adopted Nutrient Management Strategy
rules in December 1997, classifying the entire Neuse River Basin as Nutrient Sensitive Waters. The point
source rule [T15A NCAC 2B .0713 (previously .0234)] sets Total Nitrogen(TN)discharge limits for all
point source dischargers larger than 0.5 MGD.
The rule also allows dischargers to form a group compliance association and work together to reduce
nitrogen; this option allows the association members added flexibility in controlling nitrogen discharges.
At the same time,the association is subject to a group NPDES permit ensuring that the association and its
individual members are accountable if they exceed the applicable nitrogen limits. Under the rule,there are
three types of TN limit in the Neuse:
1. the individual limits in the dischargers' individual permits,
2. the aggregate limit in an association's group NPDES permit, and
3. the individual allocations/limits for each Association member, also in that association permit.
A discharger may be subject to the first type of limit,or to the second and third,but never to all three at
the same time. The discharger is first subject to the TN limit(if any) in its individual NPDES permit. If
becomes a co-permittee to a compliance association's group NPDES permit, it is then governed by the TN
limits in that permit. If the association complies with its group TN limit in a given year, all members are
deemed to be in compliance with their individual allocations/limits in the group permit. If the association
exceeds its limit,the members then become subject to their individual allocations/limits as well.
Regardless of which permit governs a TN discharge, allocations/limits will likely change over time as the
dischargers purchase, sell,trade, lease, or otherwise transfer nitrogen allocations. The Division will
modify the affected permits as necessary to ensure that the limits are kept up to date and reflect any such
transactions.
Nitrogen: The permit includes nutrient limits consistent with the Nutrient Management Strategy rule.
Under the new rule,the Permittee receives a TN Load limit of 126,711 lb/yr, a calendar year limit. The
limit reflects the Permittee's original allocation plus additional allocation received upon regionalization of
Peachtree WWTP 's discharge.
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Table 5: Annual Reported TN Load(Allocation= 126,711 lb/yr)
2019 2020 2021 2022
38,533lb/yr 40,557lb/yr 59,470lb/yr 17,644lb/yr
30.4% of 32%of 46.9%of 13.9%of
allocation allocation allocation allocation
Note: Reported flow approximately 40.5%of its permitted flow
The Permittee is a member of the Neuse River Compliance Association at this time. So long as it remains
a co-permittee member, it is deemed to be in compliance with the TN limit in this permit, and its TN
discharge is governed instead by the Association's group NPDES permit NCC0000001, issued December
30,2002.
Phosphorus: The Permittee's 2.0 mg/L Total Phosphorus limit is carried forward in the new permit. It is a
quarterly average limit to conform with the rule requirements. The 2019 through 2022 quarterly average
reported TP ranged from 0.16 to 2.4 mg/L(NOV issued for quarterly average exceedance in March
2021).
Other WQBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: As required by Session
Law 2018-5, Senate Bill 99, Section 13.1(r), every applicant shall submit documentation of any additional
pollutants for which there are certified methods with the permit application if their discharge is
anticipated via a Chemical Addendum to NPDES Application table. As an attachment to the permit
application,the City informed the Division that no monitoring for additional pollutants has been
conducted(see attached chemical addendum)and therefore no additional pollutants of concern have been
identified.
If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall
comply with in order to protect the designated waterbody:NA
If applicable, describe any compliance schedules proposed for this permit renewal in accordance with
15A NCAC 2H.0107(c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: NA
If applicable, describe any water quality standards variances proposed in accordance with NCGS 143-
215.3(e) and 15A NCAC 2B.0226 for this permit renewal:NA
7. Technology-Based Effluent Limitations (TBELs)
Municipals (if not applicable,delete and skip to Industrials)
Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/l
BODS/TSS for Monthly Average, and 45 mg/l for BODS/TSS for Weekly Average). YES
If NO,provide a justification for alternative limitations (e.g., waste stabilization pond). NA
Are 85%removal requirements for BODS/TSS included in the permit? YES; Overall removal of BOD
and TSS was> 85%during the period reviewed. However, removal rates for TSS dropped below 85%on
occasion during the period reviewed,notably linked to heavy rain events. As the City continues to repair
their collection system to treat I/I issues,violations of TSS have become less common.
If NO,provide a justification (e.g., waste stabilization pond). NA
8. Antidegradation Review (New/Expanding Discharge):
The objective of an antidegradation review is to ensure that a new or increased pollutant loading will not
degrade water quality. Permitting actions for new or expanding discharges require an antidegradation
review in accordance with 15A NCAC 2B.0201. Each applicant for a new/expanding NPDES permit
must document an effort to consider non-discharge alternatives per 15A NCAC 2H.0105(c)(2). In all
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cases, existing instream water uses and the level of water quality necessary to protect the existing use is
maintained and protected.
If applicable, describe the results of the antidegradation review, including the Engineering Alternatives
Analysis (EAA) and any water quality modeling results:NA
9. Antibacksliding Review:
Sections 402(o)(2) and 303(d)(4)of the CWA and federal regulations at 40 CFR 122.44(1)prohibit
backsliding of effluent limitations in NPDES permits. These provisions require effluent limitations in a
reissued permit to be as stringent as those in the previous permit,with some exceptions where limitations
may be relaxed(e.g.,based on new information, increases in production may warrant less stringent TBEL
limits, or WQBELs may be less stringent based on updated RPA or dilution).
Are any effluent limitations less stringent than previous permit(YES/NO):No
If YES, confirm that antibacksliding provisions are not violated:NA
10. Monitoring Requirements
Monitoring frequencies for NPDES permitting are established in accordance with the following
regulations and guidance: 1) State Regulation for Surface Water Monitoring, 15A NCAC 213.0500;2)
NPDES Guidance,Monitoring Frequency for Toxic Substances(7/15/2010 Memo); 3)NPDES Guidance,
Reduced Monitoring Frequencies for Facilities with Superior Compliance(10/22/2012 Memo); 4)Best
Professional Judgement(BPJ). Per US EPA(Interim Guidance, 1996),monitoring requirements are not
considered effluent limitations under Section 402(o)of the Clean Water Act, and therefore anti-
backsliding prohibitions would not be triggered by reductions in monitoring frequencies.
For instream monitoring,refer to Section 4.
In the current permit, total residual chlorine (TRC)is to be monitored 3/week. Per 15A NCAC 02B .0508,
Grade IV facilities shall monitor for TRC daily. As such,the monitoring frequency has been revised to
daily. TRC shall only be limited and monitored if chlorine or chlorine derivatives are used as a back-up
disinfectant.
To identify PFAS concentrations throughout the State, monitoring of PFAS chemicals has been added to
the permit. Currently,EPA Method 1633 is in its 4`h draft form and not yet published in the Federal
Register as a final methodology. As the Johnnie Mosley Regional WRF accepts influent wastewater from
several industrial facilities that are potential sources of PFAS via the approved pretreatment program, and
since an EPA method for sampling and analyzing PFAS in wastewater is not currently available, effluent
PFAS monitoring has been added to the permit at a quarterly frequency using the Draft Method 1633.
Upon evaluation of laboratory availability and capability to perform the draft analytical method, it was
determined that the sampling may be conducted using the 3rd draft method 1633 or more recent. Sampling
using the draft method shall take effect the first full calendar quarter following 6 months after the
effective date of the permit to provide the City time to select a laboratory, develop a contract, and begin
collecting samples. Effective 6 months after EPA has a final wastewater method in 40 CFR136 published
in the Federal Register,the City shall conduct effluent monitoring using the Final Method 1633 and is no
longer required to conduct influent and post-filtration monitoring.
In addition to monitoring at the wastewater management facility, the City shall identify and monitor SIUs
suspected of discharging PFAS compounds within 6 months of the permit effective date. The City shall
update their Industrial Waste Survey- (IWS)to identify indirect dischargers of PFAS contributing to
concentrations experienced at the Johnnie Mosley Regional WRF. A summary of information learned
during this process will be provided as part of the 2024 Pretreatment Annual Report(PAR). Within 6
months of completion of the IWS, the City shall begin sampling of indirect dischargers identified as
potential PFAS sources. Sampling conducted at SIUs and indirect dischargers shall also be conducted at a
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quarterly frequency. This is a summary of the PFAS requirements. For a detailed outline of the specific
PFAS requirements, see Special Condition A.(8.)PFAS Monitoring Requirements.
11. Electronic Reporting Requirements
The US EPA NPDES Electronic Reporting Rule was finalized on December 21,2015. Effective
December 21, 2016,NPDES regulated facilities are required to submit Discharge Monitoring Reports
(DMRs) electronically. While NPDES regulated facilities would initially be required to submit additional
NPDES reports electronically effective December 21, 2020, EPA extended this deadline from December
21,2020,to December 21,2025. The current compliance date, effective January 4,2021,was extended as
a final regulation change published in the November 2,2020 Federal Register. This permit contains the
requirements for electronic reporting, consistent with Federal requirements.
12.Summary of Proposed Permitting Actions:
Table 4. Current Permit Conditions and Proposed Changes Outfall 001
Parameter Current Permit Proposed Change Basis for Condition/Change
Flow MA 11.85 MGD No change 15A NCAC 2B .0505
Total Monthly Monitor and Report No change For calculation of TN loads
Flow Monthly
BOD5 Summer: No change WQBEL. BAT for new and expanded
MA 5.0 mg/1 dischargers in the Neuse River Basin;
WA 7.5 mg/l Surface Water Monitoring, 15A
Winter: NCAC 2B. 0508
MA 10.0 mg/l
WA 15.0 mg/l
Monitor and report
Dail
NH3-N Summer: No change WQBEL. BAT for new and expanded
MA 1.0 mg/l dischargers in the Neuse River Basin;
WA 3.0 mg/l Surface Water Monitoring, 15A
Winter: NCAC 2B. 0508
MA 2.0 mg/l
WA 6.0 mg/l
Monitor and report
Dail
TSS MA 30.0 mg/l No change TBEL. Secondary treatment
WA 45.0 mg/l standards/40 CFR 133 / 15A NCAC
Monitor and report 2B .0406; Surface Water Monitoring,
Daily 15A NCAC 2B. 0508
DO DA>6 mg/l No change WQBEL. State WQ standard, 15A
NCAC 2B .0200; Surface Water
Monitoring, 15A NCAC 2B. 0508
Fecal coliform MA 200/100ml No change WQBEL. State WQ standard, 15A
WA 400/100ml NCAC 2B .0200; Surface Water
Monitor and report Monitoring, 15A NCAC 2B. 0508
Dail
Temperature Monitor and Report No change Surface Water Monitoring, 15A
Daily NCAC 2B. 0508
pH 6—9 SU No change WQBEL. State WQ standard, 15A
Monitor and Report NCAC 2B .0200; 15A NCAC 02B
Daily .0508
Page 11 of 13

Total Residual DM 28 ug/L No change to limit WQBEL. 2023 WLA. Surface Water
Chlorine Monitor and Report Monitor and Report Monitoring, 15A NCAC 2B. 0508
3/Week Daily
Conductivity Monitor and Report No change Surface Water Monitoring, 15A
Daily NCAC 2B. 0508
TKN Monitor and Report No change For calculation of TN
Weekly
Nitrate+ Monitor and Report No change For calculation of TN
Nitrite Weekly
Total Nitrogen Monitor and Report No change 15A NCAC 02B .0713; Surface Water
Weekly Monitoring, 15A NCAC 2B. 0508
TN Load Monitor and Report WQBEL. 15A NCAC 02B .0713
monthly(lb/mo)
126,711 lb/yr
Monitor and Report
yearly(lb/yr)
Total QA 2.0 mg/L No change WQBEL. 15A NCAC 02B .0713;
Phosphorus Monitor and Report Surface Water Monitoring, 15A
Weekly NCAC 2B. 0508
Total Hardness Quarterly monitoring No changes Hardness-dependent dissolved metals
Upstream and in water quality standards approved in
Effluent 2016
See Special
Condition A.(8.) Evaluation of PFAS contribution—
PFAS No requirement PFAS Monitoring pretreatment industries associated with
Requirements and PFAS
Pretreatment
Toxicity Test Chronic limit, 6.1% No change WQBEL. No toxics in toxic amounts.
effluent 15A NCAC 2B.0200 and 15A NCAC
2B.0500
Effluent Three times per permit No change; conduct 40 CFR 122
Pollutant Scan cycle in 2026,2027, 2028
Instream Instream monitoring for Add monthly Surface Water Monitoring, 15A
Monitoring temperature, fecal monitoring of TKN, NCAC 2B. 0508;Discussion with
coliform,dissolved NO2+NO3, ammonia Basin Planning Branch and
oxygen and conductivity and TP consideration of NSW
once per week from
October 1 through May
30, and 3 times per week
from June 1 through
September 30;
provisional waiver due
to LNBA membership
Calculation of Special Condition A.(2.) Condition 15A NCAC 02B .0713
TN Load maintained;
rearranged to Special
Condition A.(5.)
Page 12 of 13

Annual Limits Special Condition A.(3.) Condition 15A NCAC 02B .0713
for TN maintained;
rearranged to Special
Condition A.(6.)
TN Allocations Special Condition A.(4.) Condition 15A NCAC 02B .0713
maintained;
rearranged to Special
Condition A.(7.)
Electronic Electronic Reporting No change In accordance with EPA Electronic
Reporting I Special Condition Reporting Rule 2015.
MGD—Million gallons per day,MA- Monthly Average,WA—Weekly Average,DM—Daily Max
13. Public Notice Schedule:
Permit to Public Notice: 09/14/2023
Per 15A NCAC 2H .0109 & .0111, The Division will receive comments for a period of 30 days following
the publication date of the public notice.Any request for a public hearing shall be submitted to the
Director within the 30 days comment period indicating the interest of the party filing such request and the
reasons why a hearing is warranted.
14. NPDES Division Contact
If you have any questions regarding any of the above information or on the attached permit,please
contact Nick Coco at(919) 707-3609 or via email at nick.cocogdeq.nc.gov.
15. Fact Sheet Addendum (if applicable):
The draft was submitted to the City of Kinston, EPA Region IV,Lower Neuse Basin Association, and the
Division's Washington Regional Office,Aquatic Toxicology Branch, Operator Certification Program,
Basin Planning Branch and Monitoring Coalition Coordinator for review.No comments were received
from any party.
Were there any changes made since the Draft Permit was public noticed(Yes/No): YES
If Yes, list changes and their basis below:
• To assess the industrial contribution of PFAS to the Johnnie Mosley Regional WRF and assess
levels of PFAS compounds in the facility effluent, Special Condition A.(8.)has been revised.
Please review each paragraph carefully.
16. Fact Sheet Attachments (if applicable):
• RPA Spreadsheet Summary
• NPDES Implementation of Instream Dissolved Metals Standards—Freshwater Standards
• NH3/TRC WLA Calculations
• BOD&TSS Removal Rate Calculations
• Mercury TMDL Calculations
• Monitoring Frequency Reduction Evaluation
• POC Review Form
• WET Testing and Self-Monitoring Summary
• Compliance Inspection Report
• Requested Additional Information
• Chemical Addendum
Page 13 of 13

Public Notice
AFFP North Carolina Environmental
Public Notice North Carolina Management CommissioWNP-
DES Unit
1617 Mail Service Center
Affidavit of Publication Raleigh, NC 27699-1617
Notice of Intent to Issue a NP-
DES Wastewater Permit
STATE OF NC ) NCO024236 Johnnie Mosely Re-
COUNTY OF LENOIR I SS gional WRF The North Carolina
Environmental Management
Commission proposes, to issue a
NPDES wastewater discharge
Christy Williamson , being duly sworn, says: permit to the person(s) listed be-
low. Written comments regard-
That she is Christy Williamson, Advertising Director of the ,
Kinston Free Press, a daily newspaper of general ing the proposed permit will be
accepted until 3
circulation, printed and published in Kinston, Lenoir 0 days after the
County, NC; that the publication, a copy of which is, publish date of this notice. The
attached hereto, was published in the said newspaper on Director of the NC Division of
Water Resources (DWR) may
September 14, 2023 hold a public hearing should
there be a significant degree of
public interest. Please mail com-
ments and/or information re-
quests to DWR at the above ad-
dress. Interested persons may
visit the DWR at 512 N, Salis-
That said newspaper was regularly issued and circulated bury Street, Raleigh, NC 27604
on those dates. to review the information on
SIG ED: file. Additional nformation on
NPDES permits and this notice
N'oL 6 6&410" may be found on our website:
Christy Willia'Mdon, Advertising Director'
Subscribed to and sworn to me this 14th day of licca-hearings.or by calling
September 2023. [phone] . The City of
Kinston [2101 Becton Farm
Road, Kinston, NC 285011 has
requested renewal of NPDES
permit NC,0024236 for its John-
Elizabeth)600dwin Howell, , Lenoir County, NC nie closely Regional Wastewa-
ter Treatment Plant, located in
My commission expires: July 13, 2027 Lenoir County. This permitted
l.j' kk GOOD, facility discharges treated muni-
';§� ..........
A'VV .-- cipal and industrial wastewater
��,tMW **
SOTA V to the Neuse River, a class
,,� - I-
P
Z ';NSW water in the Neuse
70103219 70770167 USLIC River Basin. Currently BOO,
ammonia, fecal coliform, dis-
13 20
Wren Thedford (138 Kinston)
Zck COU10, solved oxygen, pH, total resid-
DEO-Division of Water Resources (KiNe,. "000
1617 Mail Service Center A686111 ual chlorine, total nitrogen load-
Raleigh , NC 27699 ing, and total phosphorous are
water quality limited. This dis-
charge may affect future alloca-
tions in this segment of Middle
Creek,
September 14

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Project Information Table 2. Parameters of Concern
❑ CHECK IF HQW OR ORW WQS Name WQs Type Chronic Modifier Acute PQL Units
Facility Name Johnnie Mosely Regional WRF Par01 Arsenic Aquactic Life C 150 FW 340 ug/L
WWTP/WTP Class IV Par02 Arsenic Human Health C 10 HH/WS N/A ug/L
Water Supply
NPDES Permit NCO024236 Par03 Beryllium Aquatic Life NC 6.5 FW 65 ug/L
Outfall 001 Par04 Cadmium Aquatic Life NC 0.8191 FW 4.7524 ug/L
Flow, Qw (MGD) 11.850 Par05 Chlorides Aquatic Life NC 230 FW mg/L
Receiving Stream Neuse River Par06 Chlorinated Phenolic Compounds Water Supply NC 1 A ug/L
HUC Number 03020202 Par07 Total Phenolic Compounds Aquatic Life NC 300 A ug/L
Stream Class C;NSW Par08 Chromium III Aquatic Life NC 167.9961 FW 1296.6351 ug/L
❑ Apply WS Hardness WQC Par09 Chromium VI Aquatic Life NC 11 FW 16 pg/L
7Q10s (cfs) 283.000 Par10 Chromium, Total Aquatic Life NC N/A FW N/A pg/L
7Q10w (cfs) 292.00 Par11 Copper Aquatic Life NC 11.4198 FW 15.8360 ug/L
30Q2 (cfs) 572.00 Par12 Cyanide Aquatic Life NC 5 FW 22 10 ug/L
QA(cfs) 1514.00 Par13 Fluoride Aquatic Life NC 1,800 FW ug/L
1Q10s (cfs) 229.33 Par14 Lead Aquatic Life NC 4.7863 FW 123.4911 ug/L
Effluent Hardness 51.95 mg/L (Avg) Par15 Mercury Aquatic Life NC 12 FW 0.5 ng/L
------------- ----------------------
Upstream Hardness 37.72 mg/L (Avg) Par16 Molybdenum Human Health NC 2000 HH ug/L
------------- ----------------------
Combined Hardness Chronic 38.59 mg/L Par17 Nickel Aquatic Life NC 53.7528 FW 485.9509 pg/L
------------- ----------------------
Combined Hardness Acute 38.78 mg/L I Par18 Nickel Water Supply NC 25.0000 WS N/A pg/L
Data Source(s) Par19 Selenium Aquatic Life NC 5 FW 56 ug/L
❑ CHECK TO APPLY MODEL Par20 Silver Aquatic Life NC 0.06 FW 0.6306 ug/L
Par21 Zinc Aquatic Life NC 183.0751 FW 182.3384 ug/L
Par22
Par23
Par24
24236 RPA, input
8/16/2023

REASONABLE POTENTIAL ANALYSIS
H1 H2 Use"PASTE SPECIAL Use"PASTE SPECIAL
Effluent Hardness Values"then"COPY" Upstream Hardness Values"then"COPY"
Maximum data .Maximum data
points=58 points=58
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 1/8/2019 71 71 Std Dev. 8.8849 1 1/30/2019 32 32 Std Dev. 37.5813
2 4/9/2019 66 66 Mean 51.9474 2 2/13/2019 27 27 Mean 37.7222
3 7/9/2019 58 58 C.V. 0.1710 3 3/13/2019 21 21 C.V. 0.9963
4 10/8/2019 43 43 n 19 4 4/8/2019 40 40 n 54
5 1/7/2020 54 54 10th Per value 42.80 mg/L 5 5/20/2019 80 80 10th Per value 22.00 mg/L
6 4/7/2020 50 50 Average Value 51.95 mg/L 6 6/4/2019 44 44 Average Value 37.72 mg/L
7 7/14/2020 54 54 Max. Value 71.00 mg/L 7 7/24/2019 36 36 Max. Value 297.00 mg/L
8 10/6/2020 54 54 8 8/21/2019 23 23
9 1/12/2021 46 46 9 9/19/2019 33 33
10 4/13/2021 46 46 10 10/14/2019 39 39
11 7/13/2021 61 61 11 11/18/2019 30 30
12 10/5/2021 56 56 12 12/30/2019 33 33
13 1/20/2022 44 44 13 1/27/2020 30 30
14 4/5/2022 48 48 14 2/17/2020 18 18
15 6/14/2022 59 59 15 3/23/2020 28 28
16 7/14/2022 34 34 16 4/21/2020 28 28
17 10/6/2022 42 42 17 5/11/2020 26 26
18 1/10/2023 49 49 18 6/1/2020 28 28
19 4/24/2023 52 52 19 7/20/2020 36 36
20 20 8/12/2020 26 26
21 21 9/23/2020 22 22
22 22 10/15/2020 30 30
23 23 11/9/2020 34 34
24 24 12/7/2020 22 22
25 25 1/4/2021 24 24
26 26 2/8/2021 33 33
27 27 3/8/2021 22 22
28 28 4/5/2021 26 26
29 29 5/10/2021 33 33
30 30 6/14/2021 24 24
31 31 7/14/2021 20 20
32 32 8/23/2021 37 37
33 33 9/29/2021 36 36
34 34 10/14/2021 27 27
35 35 11/29/2021 48 48
36 36 12/29/2021 42 42
37 37 1/27/2022 44 44
38 38 2/17/2022 30 30
39 39 3/15/2022 30 30
40 40 4/26/2022 43 43
41 41 5/12/2022 40 40
42 42 6/9/2022 32 32
43 43 7/13/2022 24 24
44 44 8/18/2022 35 35
45 45 9/8/2022 36 36
46 46 10/17/2022 39 39
47 47 11/21/2022 69 69
48 48 12/19/2022 32 32
49 49 1/17/2023 16 16
50 50 2/2/2023 36 36
51 51 3/2/2023 36 36
52 52 4/27/2023 24 24
53 53 5/8/2023 297 297
54 54 6/8/2023 36 36
55 55
56 56
57 57
58 58
24236 RPA, data
- 1 - 8/16/2023

REASONABLE POTENTIAL ANALYSIS
Par01 & Par02
Use"PASTE SPECIAL
Arsenic Values"then"COPY"
Maximum data
points=58
Date Data BDL=1/2DL Results
1 1/8/2019 < 5 2.5 Std Dev. 0.3441
2 4/9/2019 < 5 2.5 Mean 2.4211
3 7/9/2019 < 5 2.5 C.V. 0.1421
4 10/8/2019 < 5 2.5 n 19
5 1/7/2020 < 5 2.5
6 4/7/2020 < 5 2.5 Mult Factor= 1.09
7 7/14/2020 < 5 2.5 Max. Value 2.5 ug/L
8 10/6/2020 < 5 2.5 Max. Pred Cw 2.7 ug/L
9 1/12/2021 < 5 2.5
10 4/13/2021 < 5 2.5
11 7/13/2021 < 5 2.5
12 10/5/2021 < 5 2.5
13 1/20/2022 < 5 2.5
14 4/5/2022 < 5 2.5
15 6/14/2022 < 2 1
16 7/14/2022 < 5 2.5
17 10/6/2022 < 5 2.5
18 1/10/2023 < 5 2.5
19 4/24/2023 < 5 2.5
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
24236 RPA, data
-2 - 8/16/2023

REASONABLE POTENTIAL ANALYSIS
Par03 Par04
Use"PASTE SPECIAL Use"PASTE SPECIAL
Beryllium Values"then"COPY" Cadmium Values"then"COPY"
Maximum data .Maximum data
points=58 points=58
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 1/12/2021 < 1 0.5 Std Dev. 0.0000 1 1/8/2019 < 1 0.5 Std Dev. 0.0574
2 6/14/2022 < 1 0.5 Mean 0.5000 2 4/9/2019 < 1 0.5 Mean 0.4868
3 4/7/2020 < 1 0.5 C.V. (default) 0.6000 3 7/9/2019 < 1 0.5 C.V. 0.1178
4 n 3 4 10/8/2019 < 1 0.5 n 19
5 5 1/7/2020 < 1 0.5
6 Mult Factor= 3.00 6 4/7/2020 < 1 0.5 Mult Factor= 1.07
7 Max. Value 0.50 ug/L 7 7/14/2020 < 1 0.5 Max. Value 0.500 ug/L
8 Max. Pred Cw 1.50 ug/L 8 10/6/2020 < 1 0.5 Max. Pred Cw 0.535 ug/L
9 9 1/12/2021 < 1 0.5
10 10 4/13/2021 < 1 0.5
11 11 7/13/2021 < 1 0.5
12 12 10/5/2021 < 1 0.5
13 13 1/20/2022 < 1 0.5
14 14 4/5/2022 < 1 0.5
15 15 6/14/2022 < 0.5 0.25
16 16 7/14/2022 < 1 0.5
17 17 10/6/2022 < 1 0.5
18 18 1/10/2023 < 1 0.5
19 19 4/24/2023 < 1 0.5
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52 < ERR
53 53 < ERR
54 54 < ERR
55 55 < ERR
56 56 < ERR
57 57 < ERR
58 58 < ERR
24236 RPA, data
-3- 8/16/2023

REASONABLE POTENTIAL ANALYSIS
Par05 Use"PASTE Par07 Use"PASTE
SPECIAL-Values" SPECIAL-Values"
Chlorides then"COPY". Total Phenolic Compounds then"COPY".
Maximum data Maximum data
Date Data BDL=1/2DL Results points=58 Date Data BDL=1/2DL Results points=58
1 1/8/2019 151 151 Std Dev. ###### 1 6/14/2022 < 20 10 Std Dev. 2.8868
2 4/9/2019 280 280 Mean 378.1 2 1/12/2021 < 20 10 Mean 8.3333
3 7/9/2019 325 325 C.V. 0.5503 3 4/7/2020 < 10 5 C.V. (default) 0.6000
4 10/8/2019 380 380 n 18 4 n 3
5 1/7/2020 330 330 5
6 4/7/2020 940 940 Mult Factor= 1.4 6 Mult Factor= 3.00
7 7/14/2020 350 350 Max. Value 940.0 mg/L 7 Max. Value 10.0 ug/L
8 10/6/2020 296 296 Max. Pred Cw 1,297.2 mg/L 8 Max. Pred Cw 30.0 ug/L
9 1/12/2021 87 87 9
10 4/13/2021 312 312 10
11 7/13/2021 408 408 11
12 10/5/2021 797 797 12
13 1/20/2022 216 216 13
14 4/5/2022 242 242 14
15 7/14/2022 356 356 15
16 10/6/2022 565 565 16
17 1/10/2023 370 370 17
18 4/24/2023 401 401 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
24236 RPA, data
-4- 8/16/2023

REASONABLE POTENTIAL ANALYSIS
Par10 Pal
Use"PASTE SPECIAL Use"PASTE SPECIAL
Chromium, Total Values"then"COPY" Copper Values"then"COPY"
Maximum data .Maximum data
points=58 points=58
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 1/8/2019 < 5 2.5 Std Dev. 0.0000 1 1/8/2019 < 2 1 Std Dev. 0.6967
2 4/9/2019 < 5 2.5 Mean 2.5000 2 4/9/2019 < 2 1 Mean 1.4737
3 7/9/2019 < 5 2.5 C.V. 0.0000 3 7/9/2019 < 2 1 C.V. 0.4728
4 10/8/2019 < 5 2.5 n 19 4 10/8/2019 < 2 1 n 19
5 1/7/2020 < 5 2.5 5 1/7/2020 < 2 1
6 4/7/2020 < 5 2.5 Mult Factor= 1.00 6 4/7/2020 3 3 Mult Factor= 1.30
7 7/14/2020 < 5 2.5 Max. Value 2.5 pg/L 7 7/14/2020 < 2 1 Max. Value 3.00 ug/L
8 10/6/2020 < 5 2.5 Max. Pred Cw 2.5 pg/L 8 10/6/2020 < 2 1 Max. Pred Cw 3.90 ug/L
9 1/12/2021 < 5 2.5 9 1/12/2021 < 2 1
10 4/13/2021 < 5 2.5 10 4/13/2021 3 3
11 7/13/2021 < 5 2.5 11 7/13/2021 2 2
12 10/5/2021 < 5 2.5 12 10/5/2021 2 2
13 1/20/2022 < 5 2.5 13 1/20/2022 < 2 1
14 4/5/2022 < 5 2.5 14 4/5/2022 < 2 1
15 6/14/2022 < 5 2.5 15 6/14/2022 2 2
16 7/14/2022 < 5 2.5 16 7/14/2022 < 2 1
17 10/6/2022 < 5 2.5 17 10/6/2022 2 2
18 1/10/2023 < 5 2.5 18 1/10/2023 2 2
19 4/24/2023 < 5 2.5 19 4/24/2023 < 2 1
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
24236 RPA, data
- 5- 8/16/2023

REASONABLE POTENTIAL ANALYSIS
Par12 Par14
Use"PASTE SPECIAL Use"PASTE SPECIAL
Cyanide Values"then"COPY" Lead Values"then"COPY"
Maximum data .Maximum data
points=58 points=58
Date Data BDL=1/2DL Results Date BDL=1/2DL Results
1 1/8/2019 < 5 5 Std Dev. 0.0000 1 1/8/2019 < 5 2.5 Std Dev. 0.6851
2 4/9/2019 < 5 5 Mean 5.00 2 4/9/2019 < 5 2.5 Mean 2.5526
3 7/9/2019 < 5 5 C.V. 0.0000 3 7/9/2019 < 5 2.5 C.V. 0.2684
4 10/8/2019 < 5 5 n 19 4 10/8/2019 < 5 2.5 n 19
5 1/7/2020 < 5 5 5 1/7/2020 < 5 2.5
6 4/7/2020 < 5 5 Mult Factor= 1.00 6 4/7/2020 < 5 2.5 Mult Factor= 1.17
7 7/14/2020 < 5 5 Max. Value 5.0 ug/L 7 7/14/2020 < 5 2.5 Max. Value 5.000 ug/L
8 10/6/2020 < 5 5 Max. Pred Cw 5.0 ug/L 8 10/6/2020 < 5 2.5 Max. Pred Cw 5.850 ug/L
9 1/12/2021 < 5.0 5 9 1/12/2021 5 5
10 4/13/2021 < 5.0 5 10 4/13/2021 < 5 2.5
11 7/13/2021 < 5 5 11 7/13/2021 < 5 2.5
12 10/5/2021 < 5 5 12 10/5/2021 < 5 2.5
13 1/20/2022 < 5 5 13 1/20/2022 < 5 2.5
14 4/5/2022 < 5 5 14 4/5/2022 < 5 2.5
15 6/14/2022 < 5 5 15 6/14/2022 < 2 1
16 7/14/2022 < 5 5 16 7/14/2022 < 5 2.5
17 10/6/2022 < 5 5 17 10/6/2022 < 5 2.5
18 1/10/2023 < 5 5 18 1/10/2023 < 5 2.5
19 4/24/2023 < 5 5 19 4/24/2023 < 5 2.5
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
24236 RPA, data
-6- 8/16/2023

REASONABLE POTENTIAL ANALYSIS
Par16 Par17 & Par18 use"PASTE
Use"PASTE SPECIAL SPECIAL-
Values"then"COPY" Values"then
Molybdenum .Maximum data Nickel "Copy.,.
points=58 Maximum data
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results points=58
1 1/8/2019 < 10 5 Std Dev. 0.0000 1 1/8/2019 < 10 5 Std Dev. 0.6882
2 4/9/2019 < 10 5 Mean 5.0000 2 4/9/2019 < 10 5 Mean 4.8421
3 7/9/2019 < 10 5 C.V. 0.0000 3 7/9/2019 < 10 5 C.V. 0.1421
4 10/8/2019 < 10 5 n 18 4 10/8/2019 < 10 5 n 19
5 1/7/2020 < 10 5 5 1/7/2020 < 10 5
6 4/7/2020 < 10 5 Mult Factor= 1.00 6 4/7/2020 < 10 5 Mult Factor= 1.09
7 7/14/2020 < 10 5 Max. Value 5.0 ug/L 7 7/14/2020 < 10 5 Max. Value 5.0 pg/L
8 10/6/2020 < 10 5 Max. Pred Cw 5.0 ug/L 8 10/6/2020 < 10 5 Max. Pred Cw 5.5 pg/L
9 1/12/2021 < 10 5 9 1/12/2021 < 10 5
10 4/13/2021 < 10 5 10 4/13/2021 < 10 5
11 7/13/2021 < 10 5 11 7/13/2021 < 10 5
12 10/5/2021 < 10 5 12 10/5/2021 < 10 5
13 1/20/2022 < 10 5 13 1/20/2022 < 10 5
14 4/5/2022 < 10 5 14 4/5/2022 < 10 5
15 7/14/2022 < 10 5 15 6/14/2022 2 2
16 10/6/2022 < 10 5 16 7/14/2022 < 10 5
17 1/10/2023 < 10 5 17 10/6/2022 < 10 5
18 4/24/2023 < 10 5 18 1/10/2023 < 10 5
19 19 4/24/2023 < 10 5
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
24236 RPA, data
-7- 8/16/2023

REASONABLE POTENTIAL ANALYSIS
Par19 Par20
Use"PASTE SPECIAL- Use"PASTE SPECIAL
Values"then"COPY". Values"then"COPY"
Selenium Maximum data points Silver .Maximum data
=58 points=58
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 1/8/2019 < 10 5 Std Dev. 1.0324 1 1/8/2019 < 1 0.5 Std Dev. 0.0000
2 4/9/2019 < 10 5 Mean 4.7632 2 4/9/2019 < 1 0.5 Mean 0.5000
3 7/9/2019 < 10 5 C.V. 0.2167 3 7/9/2019 < 1 0.5 C.V. 0.0000
4 10/8/2019 < 10 5 n 19 4 10/8/2019 < 1 0.5 n 19
5 1/7/2020 < 10 5 5 1/7/2020 < 1 0.5
6 4/7/2020 < 10 5 Mult Factor= 1.13 6 4/7/2020 < 1 0.5 Mult Factor= 1.00
7 7/14/2020 < 10 5 Max. Value 5.0 ug/L 7 7/14/2020 < 1 0.5 Max. Value 0.500 ug/L
8 10/6/2020 < 10 5 Max. Pred Cw 5.7 ug/L 8 10/6/2020 < 1 0.5 Max. Pred Cw 0.500 ug/L
9 1/12/2021 < 10 5 9 1/12/2021 < 1 0.5
10 4/13/2021 < 10 5 10 4/13/2021 < 1 0.5
11 7/13/2021 < 10 5 11 7/13/2021 < 1 0.5
12 10/5/2021 < 10 5 12 10/5/2021 < 1 0.5
13 1/20/2022 < 10 5 13 1/20/2022 < 1 0.5
14 4/5/2022 < 10 5 14 4/5/2022 < 1 0.5
15 6/14/2022 < 1 0.5 15 6/14/2022 < 1 0.5
16 7/14/2022 < 10 5 16 7/14/2022 < 1 0.5
17 10/6/2022 < 10 5 17 10/6/2022 < 1 0.5
18 1/10/2023 < 10 5 18 1/10/2023 < 1 0.5
19 4/24/2023 < 10 5 19 4/24/2023 < 1 0.5
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
24236 RPA, data
-8- 8/16/2023

REASONABLE POTENTIAL ANALYSIS
Par21
Use"PASTE SPECIAL
Zinc Values"then"COPY"
Maximum data
points=58
Date Data BDL=1/2DL Results
1 1/8/2019 21 21 Std Dev. 9.8391
2 4/9/2019 30 30 Mean 33.1579
3 7/9/2019 28 28 C.V. 0.2967
4 10/8/2019 13 13 n 19
5 1/7/2020 42 42
6 4/7/2020 31 31 Mult Factor= 1.19
7 7/14/2020 26 26 Max. Value 50.0 ug/L
8 10/6/2020 29 29 Max. Pred Cw 59.5 ug/L
9 1/12/2021 25 25
10 4/13/2021 27 27
11 7/13/2021 30 30
12 10/5/2021 44 44
13 1/20/2022 34 34
14 4/5/2022 50 50
15 6/14/2022 48 48
16 7/14/2022 30 30
17 10/6/2022 34 34
18 1/10/2023 47 47
19 4/24/2023 41 41
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
24236 RPA, data
-9- 8/16/2023

Johnnie Mosely Regional WRF > Outfall 001
NCO024236 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators QW = 11 .85 MGD
MAXIMUM DATA POINTS = 58
Qw (MGD) = 11.8500 WWTP/WTP Class: IV COMBINED HARDNESS (mg/L)
1Q10S (cfs) = 229.33 IWC% @ 1Q10S = 7.415294866 Acute =38.78 mg/L
7Q10S (cfs) = 283.00 IWC% @ 7Q10S = 6.094718243 Chronic = 3 8.5 9 mg/L
7Q10W (cfs) = 292.00 IWC% @ 7Q10W= 5.917984325
30Q2 (cfs) = 572.00 IWC% @ 30Q2 = 3.111197686
Avg. Stream Flow, QA(cfs) = 1514.00 IW%C @ QA= 1.198635445
Receiving Stream: Neuse River HUC 03020202 Stream Class: C;NSW
PARAMETER NC STANDARDS OR EPA CRITERIA J REASONABLE POTENTIAL RESULTS RECOMMENDED ACTION
TYPE Chronic Standard Acute a. D n #Det. Max Pred Cw Allowable Cw
Acute (FW): 4,585.1
Arsenic C 150 FW(7QIOs) 340 ug/L
19 0 2.7 Chronic (FW): 2,461.1 No RP, Predicted Max< 50% of Allowable Cw- No
Max MDL_= 5 Monitoring required
Arsenic C 10 HH/WS(Qavg) ug/L NO DETECTS Chronic (HH): 834.3
Max MDL 5
Acute: 876.57
Beryllium NC 6.5 FW(7QIOs) 65 ug/L 3 0 1.50
Note: n < 9 C.V. (default) Chronic: 106.65 No RP, Predicted Max< 50% of Allowable Cw- No
Limited data set NO DETECTS Max MDL= 1 Monitoring required
Acute: 64.089
Cadmium NC 0.8191 FW(7QIOs) 4.7524 ug/L 19 0 0.535 Chronic:
13.439 No RP, Predicted Max< 50% of Allowable Cw- No
NO DETECTS Max MDL= 1 Monitoring required
Acute: NO WQS
Chlorides NC 230 FW(7QIOs) mg/L 18 18 1,297.2 ------------------ -----------------------------
I
Chronic: 3,773.8 No RP, Predicted Max< 50% of Allowable Cw- No
No value >Allowable Cw Monitoring required
Acute: NO WQS
Total Phenolic Compounds NC 300 A(30Q2) ug/L 3 0 30.0 _
Note: n < 9 C.V. (default) Chronic 9,642.6 No RP, Predicted Max< 50% of Allowable Cw- No
Limited data set NO DETECTS Max MDL= 20 Monitoring required
Acute: 17,486.0
Chromium III NC 168.00 FW(7QIOs) 1296.64 µg/L 0 0 N/A
Chronic----- 2 756.4 - -----------------------------
Acute: 215.8
Chromium VI NC 11 FW(7QIOs) 16 µg/L 0 0 N/A
Chronic----- 180.5-- -----------------------------
a: No monitoring required if all Total Chromium
Chromium, Total NC µg/L 19 0 2.5 Max reported value = 2.5 samples are < 5 pg/L or Pred. max for Total Cr is <
allowable Cw for Cr VI.
NO DETECTS Max MDL 5
Acute: 213.56
Copper NC 11.4198 FW(7QIOs) 15.8360 ug/L 19 7 3.90
Chronic: 187.37 No RP, Predicted Max< 50% of Allowable Cw- No
No value >Allowable Cw Monitoring required
Acute: 296.7
Cyanide NC 5 FW(7010s) 22 10 u�/L 19 0 5.0 __ _ _____ _ __ _ ___ _ _ _ _ _ _ _ _ _ __
Chronic: 82.0 No RP, Predicted Max< 50% of Allowable Cw- No
NO DETECTS Max MDL 10 Monitoring required
24236 RPA, rpa
Page 1 of 2 8/16/2023

Johnnie Mosely Regional WRF > Outfall 001
NCOO24236 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators QW = 11 .85 MGD
Acute: 1,665.357
Lead NC 4.7863 FW(7Q10s) 123.4911 ug/L 19 1 5.850 Chronic:
78.531 No RP, Predicted Max< 50% of Allowable Cw- No
No value>Allowable Cw Monitoring required
Acute (FW): 6,553.4
Nickel NC 53.7528 FW(7Q1 Os) 485.9509 µg/L
19 1 5.5 Chronic (FW): 882.0 No RP, Predicted Max< 50% of Allowable Cw- No
No value>Allowable Cw Monitoring required
Nickel NC 25.0000 WS(7Q10s) µg/L Chronic (WS): 410.2
No value>Allowable Cw
Acute: 755.2
Selenium NC 5 FW(7QlOs) 56 ug/L 19 0 5.7 Chronic:
82.0 No RP, Predicted Max< 50% of Allowable Cw- No
NO DETECTS Max MDL= 10 Monitoring required
Acute: 8.504
Silver NC 0.06 FW(7Q10s) 0.6306 ug/L 19 0 0.500 _ Chronic:
__
0.984 No RP, All values non-detect< 1 ug/L; No-monitoring-
NO DETECTS Max MDL= 1 required
Acute: 2,459.0 No RP, Predicted Max< 50% of Allowable Cw- No
Zinc NC 183.0751 FW(7Q10s) 182.3384 ug/L 19 19 59.5 Monitoring required
----- - - - -----------------------------
Chronic 3,
No value>Allowable Cw
24236 RPA, rpa
Page 2 of 2 8/16/2023

Permit No. NCO024236
NPDES Implementation of Instream Dissolved Metals Standards-Freshwater Standards
The NC 2007-2015 Water Quality Standard(WQS)Triennial Review was approved by the NC
Environmental Management Commission(EMC)on November 13,2014. The US EPA subsequently
approved the WQS revisions on April 6,2016,with some exceptions. Therefore,metal limits in draft
permits out to public notice after April 6,2016 must be calculated to protect the new standards - as
approved.
Table 1.NC Dissolved Metals Water Q ality Standards/A uatic Life Protection
Parameter Acute FW, µg/l Chronic FW, µg/l Acute SW, µg/1 Chronic SW, µg/1
(Dissolved) (Dissolved) (Dissolved) (Dissolved)
Arsenic 340 150 69 36
Beryllium 65 6.5 --- ---
Cadmium Calculation Calculation 40 8.8
Chromium III Calculation Calculation --- ---
Chromium VI 16 11 1100 50
Copper Calculation Calculation 4.8 3.1
Lead Calculation Calculation 210 8.1
Nickel Calculation Calculation 74 8.2
Silver Calculation 0.06 1.9 0.1
Zinc Calculation Calculation 90 81
Table 1 Notes:
1. FW=Freshwater, SW= Saltwater
2. Calculation=Hardness dependent standard
3. Only the aquatic life standards listed above are expressed in dissolved form. Aquatic life
standards for Mercury and selenium are still expressed as Total Recoverable Metals due to
bioaccumulative concerns (as are all human health standards for all metals). It is still necessary
to evaluate total recoverable aquatic life and human health standards listed in 15A NCAC
2B.0200(e.g., arsenic at 10 µg/1 for human health protection; cyanide at 5 µg/L and fluoride at
1.8 mg/L for aquatic life protection).
Table 2.Dissolved Freshwater Standards for Hardness-Dependent Metals
The Water Effects Ratio(WER)is equal to one unless determined otherwise under 15A
NCAC 02B .0211 Subparagraph(11)(d)
Metal NC Dissolved Standard, µg/I
Cadmium,Acute WER*{1.136672-[ln hardness](0.041838)} e^10.9151 [ln hardness]-3.1485}
Cadmium,Acute Trout waters WER*{1.136672-[ln hardness](0.041838)} e^{0.9151[In hardness]-3.62361
Cadmium,Chronic WER*{1.101672-[ln hardness](0.041838)} •e^{0.7998[ln hardness]-4.445 11
Chromium III,Acute WER*0.316 e^{0.8190[ln hardness]+3.7256}
Chromium III,Chronic WER*0.860 e^{0.8190[ln hardness]+0.6848}
Copper,Acute WER*0.960 e^{0.9422[ln hardness]-1.700}
Copper,Chronic WER*0.960 e^{0.8545[ln hardness]-1.702}
Lead,Acute WER*{1.46203-[ln hardness](0.145712)} • e^{1.273[ln hardness]-1.460}
Lead,Chronic WER*{1.46203-[ln hardness](0.145712)} •e^{1.273[ln hardness]-4.705)
Nickel,Acute WER*0.998 e^{0.8460[ln hardness]+2.255}
Nickel,Chronic WER*0.997 e^{0.8460[ln hardness]+0.0584}
Page 1 of 4

Permit No. NCO024236
Silver,Acute WER*0.85 •e^{1.72[ln hardness]-6.59}
Silver,Chronic Not applicable
Zinc,Acute WER*0.978 e^{0.8473[ln hardness]+0.884}
Zinc,Chronic WER*0.986 e^{0.8473[ln hardness]+0.884}
General Information on the Reasonable Potential Analysis (RPA)
The RPA process itself did not change as the result of the new metals standards. However, application of
the dissolved and hardness-dependent standards requires additional consideration in order to establish the
numeric standard for each metal of concern of each individual discharge.
The hardness-based standards require some knowledge of the effluent and instream(upstream)hardness
and so must be calculated case-by-case for each discharge.
Metals limits must be expressed as `total recoverable' metals in accordance with 40 CFR 122.45(c). The
discharge-specific standards must be converted to the equivalent total values for use in the RPA
calculations. We will generally rely on default translator values developed for each metal(more on that
below),but it is also possible to consider case-specific translators developed in accordance with
established methodology.
RPA Permitting Guidance/WOBELs for Hardness-Dependent Metals -Freshwater
The RPA is designed to predict the maximum likely effluent concentrations for each metal of concern,
based on recent effluent data, and calculate the allowable effluent concentrations,based on applicable
standards and the critical low-flow values for the receiving stream.
If the maximum predicted value is greater than the maximum allowed value(chronic or acute),the
discharge has reasonable potential to exceed the standard,which warrants a permit limit in most cases. If
monitoring for a particular pollutant indicates that the pollutant is not present(i.e. consistently below
detection level),then the Division may remove the monitoring requirement in the reissued permit.
1. To perform a RPA on the Freshwater hardness-dependent metals the Permit Writer compiles the
following information:
• Critical low flow of the receiving stream, 7Q10(the spreadsheet automatically calculates
the 1 Q 10 using the formula 1 Q 10=0.843 (s7Q 10, cfs)0.993
• Effluent hardness and upstream hardness, site-specific data is preferred
• Permitted flow
• Receiving stream classification
2. In order to establish the numeric standard for each hardness-dependent metal of concern and for
each individual discharge,the Permit Writer must first determine what effluent and instream
(upstream)hardness values to use in the equations.
The permit writer reviews DMR's,Effluent Pollutant Scans, and Toxicity Test results for any
hardness data and contacts the Permittee to see if any additional data is available for instream
hardness values,upstream of the discharge.
If no hardness data is available,the permit writer may choose to do an initial evaluation using a
default hardness of 25 mg/L(CaCO3 or(Ca+Mg)). Minimum and maximum limits on the
hardness value used for water quality calculations are 25 mg/L and 400 mg/L,respectively.
If the use of a default hardness value results in a hardness-dependent metal showing reasonable
potential,the permit writer contacts the Permittee and requests 5 site-specific effluent and
upstream hardness samples over a period of one week. The RPA is rerun using the new data.
Page 2 of 4

Permit No. NCO024236
The overall hardness value used in the water quality calculations is calculated as follows:
Combined Hardness(chronic)
_(Permitted Flow,cfs *Avg. Effluent Hardness,mg/L)+s7Q10, cfs *Avg. Upstream Hardness,mg/L)
(Permitted Flow,cfs+s7Q10,cfs)
The Combined Hardness for acute is the same but the calculation uses the IQ 10 flow.
3. The permit writer converts the numeric standard for each metal of concern to a total recoverable
metal,using the EPA Default Partition Coefficients(DPCs)or site-specific translators, if any
have been developed using federally approved methodology.
EPA default partition coefficients or the"Fraction Dissolved"converts the value for
dissolved metal at laboratory conditions to total recoverable metal at in-stream
ambient conditions. This factor is calculated using the linear partition coefficients
found in The Metals Translator: Guidance for Calculating a Total Recoverable
Permit Limit from a Dissolved Criterion (EPA 823-B-96-007, June 1996)and the
equation:
Cdiss - 1
Ctotal I + { [Kpo] [ss('+a)] [10-6] }
Where:
ss=in-stream suspended solids concentration [mg/1],minimum of 10 mg/L used,
and
Kpo and a=constants that express the equilibrium relationship between dissolved
and adsorbed forms of metals. A list of constants used for each hardness-dependent
metal can also be found in the RPA program under a sheet labeled DPCs.
4. The numeric standard for each metal of concern is divided by the default partition coefficient(or
site-specific translator)to obtain a Total Recoverable Metal at ambient conditions.
In some cases,where an EPA default partition coefficient translator does not exist(ie. silver),the
dissolved numeric standard for each metal of concern is divided by the EPA conversion factor to
obtain a Total Recoverable Metal at ambient conditions. This method presumes that the metal is
dissolved to the same extent as it was during EPA's criteria development for metals. For more
information on conversion factors see the June, 1996 EPA Translator Guidance Document.
5. The RPA spreadsheet uses a mass balance equation to determine the total allowable concentration
(permit limits)for each pollutant using the following equation:
Ca=(s7Q 10+Qw)(Cwgs)—(s7Q 10) (Cb)
Qw
Where: Ca=allowable effluent concentration(µg/L or mg/L)
Cwqs=NC Water Quality Standard or federal criteria(µg/L or mg/L)
Cb=background concentration: assume zero for all toxicants except NH3* (µg/L or mg/L)
Qw=permitted effluent flow(cfs,match s7Q 10)
s7Q 10=summer low flow used to protect aquatic life from chronic toxicity and human
health through the consumption of water, fish, and shellfish from noncarcinogens (cfs)
* Discussions are on-going with EPA on how best to address background concentrations
Flows other than s7Q 10 may be incorporated as applicable:
IQ 10=used in the equation to protect aquatic life from acute toxicity
Page 3 of 4

Permit No. NC0024236
QA=used in the equation to protect human health through the consumption of water,
fish, and shellfish from carcinogens
30Q2=used in the equation to protect aesthetic quality
6. The permit writer enters the most recent 2-3 years of effluent data for each pollutant of concern.
Data entered must have been taken within four and one-half years prior to the date of the permit
application(40 CFR 122.21). The RPA spreadsheet estimates the 95th percentile upper
concentration of each pollutant. The Predicted Max concentrations are compared to the Total
allowable concentrations to determine if a permit limit is necessary. If the predicted max exceeds
the acute or chronic Total allowable concentrations,the discharge is considered to show
reasonable potential to violate the water quality standard, and a permit limit(Total allowable
concentration)is included in the permit in accordance with the U.S. EPA Technical Support
Document for Water Quality-Based Toxics Control published in 1991.
7. When appropriate,permit writers develop facility specific compliance schedules in accordance
with the EPA Headquarters Memo dated May 10,2007 from James Hanlon to Alexis Strauss on
40 CFR 122.47 Compliance Schedule Requirements.
8. The Total Chromium NC WQS was removed and replaced with trivalent chromium and
hexavalent chromium Water Quality Standards. As a cost savings measure,total chromium data
results may be used as a conservative surrogate in cases where there are no analytical results
based on chromium III or VI. In these cases,the projected maximum concentration(95th%) for
total chromium will be compared against water quality standards for chromium III and
chromium VI.
9. Effluent hardness sampling and instream hardness sampling,upstream of the discharge, are
inserted into all permits with facilities monitoring for hardness-dependent metals to ensure the
accuracy of the permit limits and to build a more robust hardness dataset.
10. Hardness and flow values used in the Reasonable Potential Analysis for this permit included:
Parameter Value Comments (Data Source)
Average Effluent Hardness(mg/L) 51.95 Average from DMR review for data
[Total as, CaCO3 or(Ca+Mg)] from January 2019—June 2023
Average Upstream Hardness (mg/L) 37.72 Average from DMR review for data
[Total as, CaCO3 or(Ca+Mg)] from January 2019—June 2023
7Q 10 summer(cfs) 283 Historical file;previous fact sheet
1Q10(cfs) 229.33 Calculated in RPA
Permitted Flow(MGD) 11.85 NPDES Files
Date: 8/17/2023
Permit Writer: Nick Coco
Page 4 of 4

NH3/TRC WLA Calculations
Facility: Johnnie Mosely Regional WRF
PermitNo. NC0024236
Prepared By: Nick Coco
Enter Design Flow (MGD): 11.85
Enter s7Q10 (cfs): 283
Enter w7Q10 (cfs): 292
Total Residual Chlorine (TRC) Ammonia (Summer)
Daily Maximum Limit (ug/1) Monthly Average Limit(mg NH3-N/1)
s7Q10 (CFS) 283 s7Q10 (CFS) 283
DESIGN FLOW (MGD) 11.85 DESIGN FLOW (MGD) 11.85
DESIGN FLOW (CFS) 18.3675 DESIGN FLOW (CFS) 18.3675
STREAM STD (UG/L) 17.0 STREAM STD (MG/L) 1.0
Upstream Bkgd (ug/1) 0 Upstream Bkgd (mg/1) 0.22
IWC (%) 6.09 IWC (%) 6.09
Allowable Conc. (ug/1) 279 Allowable Conc. (mg/1) 13.0
Cap at 28 uq/L.Consistent with current limit. Less stringent than limit.Maintain limit.
Maintain limit.
Ammonia (Winter)
Monthly Average Limit(mg NH3-N/1)
Fecal Coliform w7Q10 (CFS) 292
Monthly Average Limit: 200/100ml DESIGN FLOW (MGD) 11.85
(If DF >331; Monitor) DESIGN FLOW (CFS) 18.3675
(If DF<331; Limit) STREAM STD (MG/L) 1.8
Dilution Factor(DF) 16.41 Upstream Bkgd (mg/1) 0.22
IWC (%) 5.92
Allowable Conc. (mg/1) 26.9
Less stringent than limit.Maintain limit.
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit(Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 =400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non-Muni)

8/16/23 WQS= 12 ng/L MERCURY WQBEL/TBEL EVALUATION V:2013-6
Facility Name Johnnie Mosely Regional WRF/NC0024236 No Limit Required
/Permit No.
No MMP Required
Total Mercury 1631E PQL=0.5 ng/L 7Q10s = 283.000 cfs WQBEL= 196.89 ng/L
Date Modifier Data Entry Value Permitted Flow= 11.850 47 ng/L
1/8/19 < 1 0.5
4/9/19 < 1 0.5
7/9/19 < 1 0.5
10/28/19 < 1 0.5 0.5 ng/L-Annual Average for 2019
1/7/20 < 1 0.5
4/7/20 < 1 0.5
7/14/20 < 1 0.5
10/6/20 < 1 0.5 0.5 ng/L-Annual Average for 2020
1/12/21 < 1 0.5
4/13/21 < 1 0.5
7/13/21 < 1 0.5
10/5/21 < 1 0.5 0.5 ng/L-Annual Average for 2021
1/20/22 < 1 0.5
4/5/22 < 1 0.5
6/14/22 < 1 0.5
7/28/22 < 1 0.5
10/6/22 < 1 0.5 0.5 ng/L-Annual Average for 2022
1/10/23 < 1 0.5
4/24/23 < 1 0.5 0.5 ng/L-Annual Average for 2023

Johnnie Mosely Regional WRF/NC0024236
Mercury Data Statistics (Method 1631E)
2019 2020 2021 2022 2023
#of Samples 4 4 4 5 2
Annual Average, ng/L 0.5 0.5 0.5 0.50 0.5
Maximum Value, ng/L 0.50 0.50 0.50 0.5 0.5
TBEL, ng/L 47
WQBEL, ng/L 196.9

NCO024236 Johnnie Mosely Regional WRF 8/17/2023
BOD monthly removal rate TSS monthly removal rate
Month RR(%) Month RR(%) Month RR(%) Month RR(%)
January-19 98.92 July-21 99.28 January-19 97.53 July-21 98.52
February-19 98.98 August-21 94.56 February-19 98.03 August-21 22.17
March-19 93.69 September-21 99.29 March-19 0.00 September-21 97.18
April-19 98.71 October-21 99.34 April-19 97.55 October-21 98.05
May-19 99.02 November-21 99.07 May-19 98.42 November-21 97.90
June-19 99.08 December-21 99.04 June-19 98.33 December-21 98.68
July-19 98.99 January-22 98.52 July-19 98.70 January-22 89.34
August-19 99.25 February-22 98.86 August-19 98.40 February-22 95.74
September-19 99.04 March-22 99.16 September-19 98.48 March-22 98.27
October-19 99.23 April-22 99.03 October-19 98.55 April-22 98.92
November-19 98.87 May-22 99.23 November-19 98.66 May-22 98.53
December-19 99.13 June-22 99.25 December-19 98.55 June-22 98.55
January-20 98.95 July-22 99.19 January-20 98.77 July-22 98.49
February-20 98.49 August-22 99.05 February-20 0.00 August-22 98.52
March-20 98.68 September-22 99.00 March-20 98.38 September-22 98.75
April-20 98.65 October-22 99.25 April-20 98.65 October-22 99.57
May-20 99.10 November-22 99.27 May-20 98.59 November-22 98.67
June-20 98.05 December-22 99.39 June-20 94.64 December-22 98.59
July-20 98.98 January-23 99.39 July-20 97.97 January-23 98.82
August-20 97.11 February-23 98.59 August-20 53.37 February-23 47.83
September-20 98.89 March-23 99.32 September-20 97.81 March-23 98.63
October-20 99.20 April-23 97.71 October-20 98.28 April-23 89.01
November-20 98.18 May-23 98.97 November-20 78.73 May-23 98.74
December-20 98.92 June-23 99.17 December-20 98.43 June-23 98.68
January-21 97.21 July-23 January-21 22.18 July-23
February-21 96.32 August-23 February-21 75.95 August-23
March-21 98.32 September-23 March-21 96.13 September-23
April-21 98.88 October-23 April-21 98.31 October-23
May-21 99.28 November-23 May-21 99.13 November-23
June-21 99.14 December-23 June-21 97.77 December-23
Overall BOD removal rate 98.66 Overall TSS removal rate 88.52

EPA Identification Number NPDES Number Facility Name Outfall Number
NCO024236 Johnnie Mosley Regional WRF 1
Method Number.' Estimated LvneenYratiort-"';{iF.
Pont pant(Required) ' GA5 number' llcable): Reason PollutanCBelieued.Present 1n Dlsettarge Known)
NA NA NA NA NA

MONITORING REPORT(MR)VIOLATIONS for: Report Date: 08/15/22 Page 1 of 3
Permit: NCO024236 MRS Betweei 8 - 2018 and 8 - 2023 Region: % Violation Category:Limit Violation Program Category:
Facility Name:% Param Nam(% County: % Subbasin:% Violation Action:%
Major Minor: %
PERMIT: NCO024236 FACILITY: City of Kinston-Johnnie Mosley Regional WRF COUNTY: Lenoir REGION: Washington
Limit Violation
MONITORING VIOLATION UNIT OF CALCULATED %
REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
03-2019 001 Effluent BOD,5-Day(20 Deg.C)- 03/09/19 5 X week mg/I 15 29.28 95.2 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
06-2020 001 Effluent BOD,5-Day(20 Deg.C)- 06/20/20 5 X week mg/I 7.5 8.82 17.6 Weekly Average Proceed to NOV
Concentration Exceeded
08-2021 001 Effluent BOD,5-Day(20 Deg.C)- 08/07/21 5 X week mg/I 7.5 30.74 309.9 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
08-2021 001 Effluent BOD,5-Day(20 Deg.C)- 08/31/21 5 X week mg/I 5 6.99 39.7 Monthly Average Proceed to
Concentration Exceeded Enforcement Case
04-2023 001 Effluent BOD,5-Day(20 Deg.C)- 04/15/23 5 X week mg/I 7.5 7.66 2.1 Weekly Average Proceed to NOV
Concentration Exceeded
02-2021 001 Effluent Coliform, Fecal MF, MFC 02/20/21 5 X week #/100ml 400 480.9 20.2 Weekly Geometric Mean Proceed to
Broth,44.5 C Exceeded Enforcement Case
04-2021 001 Effluent Coliform, Fecal MF, MFC 04/03/21 5 X week #/100ml 400 989.16 147.3 Weekly Geometric Mean Proceed to
Broth,44.5 C Exceeded Enforcement Case
09-2018 001 Effluent Oxygen, Dissolved(DO) 09/25/18 5 X week mg/I 6 5.9 1.7 Daily Minimum Not No Action, BPJ
Reached
06-2023 001 Effluent Oxygen, Dissolved(DO) 06/28/23 5 X week mg/I 6 2.36 60.7 Daily Minimum Not None
Reached
02-2021 001 Effluent pH 02/17/21 5 X week su 6 5.75 4.2 Daily Minimum Not Proceed to
Reached Enforcement Case
02-2021 001 Effluent pH 02/24/21 5 X week su 6 5.82 3.0 Daily Minimum Not Proceed to
Reached Enforcement Case
03-2021 001 Effluent Phosphorus,Total(as P)- 03/31/21 Weekly mg/I 2 2.36 18.2 Quarterly Average Proceed to NOV
Concentration Exceeded
03-2019 001 Effluent Solids,Total Suspended- 03/09/19 5 X week mg/I 45 2,564 5,597.8 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
03-2019 001 Effluent Solids,Total Suspended- 03/31/19 5 X week mg/I 30 610.84 1,936.1 Monthly Average Proceed to
Concentration Exceeded Enforcement Case
02-2020 001 Effluent Solids,Total Suspended- 02/08/20 5 X week mg/I 45 1,375.1 2,955.8 Weekly Average Proceed to
Concentration Exceeded Enforcement Case

MONITORING REPORT(MR) VIOLATIONS for: Report Date: 08/15/22 Page 2 of 3
Permit: NCO024236 MRS Betweel 8 - 2018 and 8 - 2023 Region: % Violation Category:Limit Violation Program Category:
Facility Name:% Param Nam(% County: % Subbasin:% Violation Action:%
Major Minor: %
PERMIT: NCO024236 FACILITY: City of Kinston-Johnnie Mosley Regional WRF COUNTY: Lenoir REGION: Washington
Limit Violation
MONITORING VIOLATION UNIT OF CALCULATED %
REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
02-2020 001 Effluent Solids,Total Suspended- 02/29/20 5 X week mg/I 30 393.06 1,210.2 Monthly Average Proceed to
Concentration Exceeded Enforcement Case
08-2020 001 Effluent Solids,Total Suspended- 08/08/20 5 X week mg/I 45 191.12 324.7 Weekly Average Proceed to NOV
Concentration Exceeded
08-2020 001 Effluent Solids,Total Suspended- 08/15/20 5 X week mg/I 45 91.22 102.7 Weekly Average Proceed to NOV
Concentration Exceeded
08-2020 001 Effluent Solids,Total Suspended- 08/31/20 5 X week mg/I 30 67.36 124.5 Monthly Average Proceed to NOV
Concentration Exceeded
11-2020 001 Effluent Solids,Total Suspended- 11/14/20 5 X week mg/I 45 120.43 167.6 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
11-2020 001 Effluent Solids,Total Suspended- 11/30/20 5 X week mg/I 30 32.61 8.7 Monthly Average Proceed to
Concentration Exceeded Enforcement Case
01-2021 001 Effluent Solids,Total Suspended- 01/02/21 5 X week mg/I 45 222.68 394.8 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
01-2021 001 Effluent Solids,Total Suspended- 01/30/21 5 X week mg/I 45 80.08 78.0 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
01-2021 001 Effluent Solids,Total Suspended- 01/31/21 5 X week mg/I 30 68.76 129.2 Monthly Average Proceed to
Concentration Exceeded Enforcement Case
02-2021 001 Effluent Solids,Total Suspended- 02/20/21 5 X week mg/I 45 112.77 150.6 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
02-2021 001 Effluent Solids,Total Suspended- 02/28/21 5 X week mg/I 30 40.55 35.2 Monthly Average Proceed to
Concentration Exceeded Enforcement Case
08-2021 001 Effluent Solids,Total Suspended- 08/07/21 5 X week mg/I 45 216.76 381.7 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
08-2021 001 Effluent Solids,Total Suspended- 08/31/21 5 X week mg/I 30 49.26 64.2 Monthly Average Proceed to
Concentration Exceeded Enforcement Case
01-2022 001 Effluent Solids,Total Suspended- 01/08/22 5 X week mg/I 45 88.05 95.7 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
02-2023 001 Effluent Solids,Total Suspended- 02/18/23 5 X week mg/I 45 439.63 877.0 Weekly Average Proceed to
Concentration Exceeded Enforcement Case
02-2023 001 Effluent Solids,Total Suspended- 02/28/23 5 X week mg/I 30 125.61 318.7 Monthly Average Proceed to
Concentration Exceeded Enforcement Case

MONITORING REPORT(MR)VIOLATIONS for: Report Date: 08/15/22 Page 3 of 3
Permit: NCO024236 MRS Betweel 8 - 2018 and 8 - 2023 Region: % Violation Category:Limit Violation Program Category:
Facility Name:% Param Nam(% County: % Subbasin:% Violation Action:.17mul
Major Minor:
PERMIT: NCO024236 FACILITY: City of Kinston-Johnnie Mosley Regional WRF COUNTY: Lenoir REGION: Washington
Limit Violation
MONITORING VIOLATION UNIT OF CALCULATED %
REPORT OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
04-2023 001 Effluent Solids,Total Suspended- 04/15/23 5 X week mg/I 45 49.45 9.9 Weekly Average Proceed to NOV
Concentration Exceeded

Whole Effluent Toxicity Testing and Self Monitoring Summary
Kinder Morgan Southeast Terminals LLC NCO042501/001 County: Guilford Region: WSRO Basin: CPF08 Jan Apr Jul Oct SOC JOC:
Fthd24PF Begin: 4/1/2022 Acu Fthd 24hr PF Lim NonComp: 70,10: 0.0 PF: VAR IWC: 100 Freq: Q
J F M A M J J A S O N D
2019 Pass - - - - - - - - - - -
2019 >100 - - - - - - - - - - -
2019 >100 - - - - - - - - - - -
2020 Pass - - - - - - - - - - -
2020 >100 - - - - - - - - - - -
2021 >100 - - - - - - - - - - -
2021 Pass - - - - - - - - - - -
2021 >100 - - - - - - - - - - -
2022 - Pass - Pass - - Pass - - Pass - -
2022 >100 - - - - - - - - - - -
2022 >100 - - - - - - - - - - -
2023 - >100 - - - - - - - - - -
2023 H Pass - Pass - - - - - - - -
2023 - >100 - - - - - - - - - -
Kings Mountain,City of-Ellison WTP NCO079740/001 County: Cleveland Region: MRO Basin: BRD05 Jan Apr Jul Oct SOC JOC:
Ceri7dPF Begin: 1/1/2019 Chr Monit: 3.45% NonComp: 7Q10: PF: IWC: Freq: Q
J F M A M J J A S O N D
2019 Pass - - Pass - - - - Pass Pass - -
2020 Pass - - Pass - - Fail - - Pass - -
2021 Pass - - Pass - - Pass - - Pass - -
2022 Pass - - Pass - - Pass - - Pass - -
2023 Pass - - Pass - - - - - - - -
Kings Mtn.-Pilot Cr.WWTP NCO020737/001 County: Cleveland Region: MRO Basin: BRD05 Jan Apr Jul Oct SOC JOC:
Ceri7dPF Begin: 6/1/2015 chr lim:33% NonComp: Single 7Q10: 19.0 PF: 6.0 IWC: 33 Freq: Q
J F M A M J J A S O N D
2019 Pass - - Pass - - Pass - - Pass - -
2020 Pass - - Pass - - Pass - - Pass - -
2021 Pass - - Pass - - Pass>100(P) - - Pass - -
2022 Pass - - Pass - - Pass>100(P) - - Pass >100 Pass -
2023 Pass>100 - - Pass - - - - - - - -
Kinston-Regional WRF NCO024236/001 County: Lenoir Region: WARO Basin: NEU05 Jan Apr Jul Oct SOC JOC:
Ceri7dPF Begin: 11/1/2018 Chr Lim:6.1 NonComp: Single 7Q10: 0 PF: 11.85 IWC: 100 Freq: Q
J F M A M J J A S O N D
2019 Pass - - Pass - - Pass - - Pass - -
2020 Pass - - Pass - - Pass - - Pass - -
2021 Pass - - Pass - - Pass - - Pass - -
2022 Pass - >12(P) Pass >10(P) >12(P) Pass - >12 Pass - -
2023 Pass - - Pass - - - - - - - -
Leeend: P=Fathead minnow(Pimohales oromelas).H=No Flow(facilitv is active).s=Solit test between Certified Labs Page 58 of 115

A B C D E I F I G I H I I I J K L M N O 1 P
1 Pollutants of Concern (POC) Review Form Version: 2022.09.28
2 1. Facility's General Information
3 Date of(draft) Review 9/8/2023 c. POC review due to: e. Contact Information
4
Date of(final) Review 11/2/2023 Municipal NPDES renewal 121 Regional Office(RO) Washington
5 NPDES Permit Writer(pw) Nick Coco HWA-AT/LTMP Review ❑ RO PT Staff Robbie Bullock RO NPDES Staff Robbie Bullock
6
Perm ittee-Facility Name Johnnie Mosely Regional WRF New Industries ❑ Facility PT Staff, email Benlamin Overton, benlamin.overton(a�ci.kinston.nc.us
7 NPDES Permit Number NCO024236 WWTP expansion ❑ f. Receiving Stream
8 NPDES Permit Effective Date 2/1/2024 Stream reclass./adjustment ❑ Outfall
Chemical Addendum Submittal 9/6/2023 Outfall relocation/adjustment ❑ Receiving Stream: Neuse River QA, cfs: 1514
9 Date
10 NPDES Permit Public Notice Date 9/14/2023 7Q10 update ❑ Stream Class C;NSW 7Q10 (S), cfs: 283
11
eDMR data evaluated from: 1 1/1/2019 to 6/30/zucj Other POC review trigger, explain: Oufall Lat. 35.17.15 Outfall Long. 77.30.41
12 a. WWTP Capacity Summary Outfall II
Current Permitted Flow, mgd 11.9 Designed Flow, Receiving Stream: QA, cfs:
13 mgd
14 Permitted SIU Flow, mgd 1.2520 d. IU Summary Stream Class 7Q10, cfs:
15 b. PT Docs. Summary #IUs Oufall Lat. Outfall Long.
16
IWS approval date 6/2/2022 #SIUs Is there a PWS intake downstream of the Facility's Outfall(s)? YES 0 NO
17
L/STMP approval date: 12/3/2018 #CIUs Comments:
18 #NSCIUs
HWA-AT approval date 5/30/2018 #IUs w/Local 7 HWA due 4/1/2023
Permits or Other
19 ITypes
20 2. Industrial Users' Information.
21 # Industrial User(IU) Name IU Activity IU Non Conventional Pollutans &Toxic Pollutant IUP Effective Date
22 1 ALSCO Linen rentals pH, BOD, TSS, chromium, copper, lead, zinc, total phosphorous 12/31/2019
2 Crown Equipment Corporation Forklift BOD, TSS, pH, total phosphorous, cadmium, chromium, copper, cyanide, lead, nickel, silver, TTO 12/31/2019
manufacturing
23 40CFR 433
L 3 Domestic Fabrics and Blankets Corporation Textile BOD, TSS, pH, temperature 12/31/2019
24 Processing
4 Electrolux Major Appliances Dishwasher BOD, TSS, pH, total phosphorous, total nitrogen, cadmium, chromium, copper, cyanide, lead, nickel, silver, zinc, TTO 12/31/2019
manufacturing 40
25 a- CFR 433
W 5 Reco NC, LLC Dishwasher BOD, TSS, pH, total phosphorous, total nitrogen, ammonia, cadmium, chromium, copper, cyanide, lead, nickel, silver, zinc, TTO 6/10/2023
0 basket
Z
Z manufacturing 40
26 CFR 433
6 Smithfield Packaged Meats Corporation Meat BOD, TSS, pH, total phosphorous, oil &grease, total nitrogen 12/31/2021
Packing/Food
27 Processing
7 West Pharmaceutical Services Pharmaceutical BOD, TSS, pH, total phosphorous, copper, zinc, oil &grease, chlorine 12/31/2019
rubber device
manufacturing 40
28 CFR 428.76
8 William Barnett&Son, LLC Staple Fiber BOD, TSS, pH, total phosphorous 12/31/2019
29 Processing
9
30
10
31
11
32
12
33
13
34
14
35
Comment:
40
41 3. Status of Pretreatment Program (check all that apply)
42 Status of Pretreatment Program (check all that apply)
43 ❑ 1) facility has no SIUs, does have Division approved Pretreatment Program that is INACTIVE
44 ❑ 2) facility has no SIU's, does not have Division approved Pretreatment Program
45 ❑ 3) facility has SIUs and DWQ approved Pretreatment Program
46 p 3a) Full Program with LTMP
47 ❑ 3b) Modified Program with STMP
48 ❑ 4) additional conditions regarding Pretreatment attached or listed below
49 0 5) facility's sludge is being land applied or composted
50 ❑ 6) facility's sludge is incinerated (add Beryllium and Mercury sampling according to §503.43)
51 ❑ 7) facility's sludge is taken to a landfill, if yes which landfill:
52 ❑ 8) other
53 Sludge Disposal Plan: Sludge is currently land applied as Class A sludge.
54
55
56 Sludge Permit No: WQ0003919
Pagel POC Review Form

A B C D E F G H I I J I K I L M N O P
57 4. LTMP/STMP and HWA Review
58 PW: Find L/STMP document, HWA spreadsheet, DMR, previous and new NPDES permit for next section.
0- Parameter of New Previous Required by POC due to POC due to POTW % L/STMP NPDES Comment
Concern (POC) NPDES NPDES EPA PT(1) Sludge (2) SIU (3) POC (4) Removal Effluent Freq. Effluent Freq.
Cn
Cn Check List POC POC Rate PQLs review
c
59 U
a- PQL from Required PQL Recomm.
L/STMP, ug/I per NPDES PQL, ug/I
60 permit
p Flow E] El El El61
62 p BOD El El ❑
63 F,1 TSS ❑ 0 p ❑
64 0 NH3 ❑ 0 ❑ ❑
65 ❑ Arsenic ❑ ❑ 0 ❑ ❑
66 ❑ Barium ❑ ❑ ❑ ❑ ❑
67 ❑ Beryllium(5) ❑ ❑ ❑ ❑ ❑
68 0 Cadmium(1) ❑ ❑ 0 0 El ❑
69 0 Chromium(1) E] El 0 E] El El5.�
70 p] Copper(l) ❑ ❑ 0 0 p ❑ 2.0
71 0 Cyanide ❑ ❑ ❑ p ❑
72 p Lead(1) ❑ ❑ 0 p 0 ❑ 2.0
73 ❑ Mercury(5) ❑ ❑ 0 ❑ ❑ 0.001
74 ❑ Molybdenum ❑ ❑ 0 ❑ ❑ 10.0
75 E] Nickel(1) ❑ ❑ 0 0 p ❑
76 Fi Selenium ❑ ❑ p ❑ ❑ 1.0
77 p Silver ❑ ❑ ❑ 0 ❑ 1.0
78 0 Zinc(1) ❑ ❑ 0 p p ❑ 10.0
79 ❑ Sludge Flow to Disposal p ❑ ❑
80 ❑ % Solids to Disposal p ❑ ❑
81 ❑ Oil & Grease ❑
82 ❑ TN ❑ 121 ❑ ❑
83 ❑ TP ❑ 121 121 ❑
84 ❑ Chloride ❑ ❑ ❑ ❑
85 ❑ Cobalt ❑ ❑ ❑ ❑
86 ❑ Sodium ❑ ❑ ❑ ❑
❑ Bis (2-ethylhexyl) ❑ ❑ ❑ ❑
87 phthalate p 4
88 ❑ ❑ ❑
89 ❑ ❑ ❑ ❑ ❑
90 ❑ ❑ ❑ ❑ ❑
91 Footnotes:
92 (1)Always in the LTMP/STMP due to EPA-PT requirement
93 (2) Only in LTMP/STMP if listed in sludge permit
94 (3) Only in LTMP/STMP while SIU still discharges to POTW
95 (4) Only in LTMP/STMP when pollutant is of concern to POTW
96 (5) In LTMP/STMP, if sewage sludge is incinerated
97 Please use blue font for the info updated by pw
98 Please use red font for POC that need to be added/modified in USTMP sampling plan
99 'lease use orange font and strakethrough for POC that may be removed from USTMP P0r- Imstina
100 Blue shaded cell (D60:H81): Parameters usually included under that POC list
101 5. Comments
Facility Summary/background information/NPDES-PT regulatory action:
POC to be added/modified in L/STMP:
102
ORC's comments on IU/POC:
r 1
103
POC submitted through Chemical
Addendum or Supplemental Chemical
104 Datasheet:
Additional pollutants added to L/STMP due
105 to POTW s concerns:
106 NPDES pw's comments on IU/POC:
107 6. Pretreatment updates in response to NPDES permit renewal
11081 NPDES Permit Effective Date 1 2/1/2024 180 days after effective(date): 7/30/2024 Permit writer, please add list of required/recommended PT updates in NPDES permit cover letter.
Page 2 POC Review Form

Effluent Toxicity Report Form-Chronic Fathead Minnow Multi-Concentration Test Date:9/23/2022
Facility: Kinston RWRF NPDES#NC00 24236 Pipe It. 001 County: Lenoir
Lab : Meritech,Inc. Comments
x
Signature of Oper or in R arge/Email/Phone Number
x
Signature of Laboratory Supervisor
MAIL ORIGINAL TO: Water Sciences Section
Aquatic Toxicology Branch
Division ofWater Resources
1621 Mail Service Center
Raleigh,N.C.27699-1621
Test Initiation DatelTime 9/13/2022 12:26 PM Avg Wt/Surv.Control 0.630 Test Organisms
%Elf. Repl. 1 2 3 4 r Cultured In-House
Control Surviving# 9 10 10 10 %Survival 97.5 ;+ Outside Supplier
Original# 10 10 10 10
Wt/original(mg) 0.578 0.569 0.682 0.626 Avg Wt(mg) 0,614 Hatch Date: 9/12/22
1.5 Surviving# 110 10 10 10 %Survival 100.0 Hatch Time: 4:00-6:oopm
Original# 10 10 10 10
Wt/original(mg) 0.671 0.649 0.643 0.598 Avg Wt(mg) t).640
3.5 Surviving# 10 10 10 10 %Survival 100.0
Original# 10 10 10 10 :j
WVoriginal(mg) 0.573 0.644 0.584 0.633 Avg Wt(mg) 0.609
6.1 Surviving# 10 10 10 10 %Survival 100.0
Original# 10 10 10 10
Wt/original(mg) 0.622 0.565 0.536 0.685 Avg Wt(mg) 0.602
9.15 Surviving# 1.0 10 10 10 %Survival 100.0
Original# 10 10 10 10
I Wt/original(mg) 0.662 0.645 0.607 0.698 Avg Wt(mg) 0.653
12.2 Surviving# 10 10 10 10 %Survival 100.0
Original# 10 10 10 10
WVoriginal(mg) 0.574 0.773 0.574 0.637 Avg Wt(mg) 0.640
Water Quality Data Day
Control 0 1 2 3 4 5 8
pH(SU)Init/Fin 7.91 l 7.75 17.80 / 7.76 17.79 / 7,65 17.71 / 7.62 17.62 / 7.91 8.04 / 7.80 I 7.61 11.57
DO(mg/L) Init/Fin 8.00 / 7.50 7.95 / 7.53 17.79 / 7.11 1 7.94 / 7,34 7.84 17.61 17.85 / 7.49 7.88 / 7.24
Temp(C)[nit/Fin 24.4 1 24A 124.8 / 2 4.2 24.3 / 24.0 1 24.4 / 24.3 124.3 124.4 124.2 / 24.4 124.0 124.1
High Concentration o 1 2 3 4 1 5 6
pH(SU)Init/Fin 8.06 17.74 17.95 17.75 7.91 / 7.70 17.91 1 7.82 17.98 / 8.02 8.11 / 7.73 1 7.96 17.78 r
DO(mg/L) InIt/Fin 8.00 / 7.38 7.85 17.30 7.94 / 7.20 1 7.88 1 7.46 17.90 1 7.67 7.97 / 7.47 17.90 / 7.34
Temp(C)Init/Fin 25.7 / 24.3 124.0 1 24.2 24.2 / 24.6 1 24.9 1 24.4 124.7 1 24.6 125,3 / 24.3 124.8 / 24.3
Sample 1 2 3 Survival Growth Overall Result
Collection Start Date 9/11/2022 9/13/2022 9/15/2022 Normal FV F'l ChV >12
j Grab Horn.Var. rl. Fl 1
j Composite(Duration) 23.9 . 23.9 22.6 NOEC 12 12
i Hardness(mg/L) 40 36 42 LOEC >12 >12
Alkalinity(mg/L) 167 206 165 ChV >12 >12
Conductivity(umhos/cm) 2730 2030 2550 Method Steel's Dunnett's
i Chlorine(mg/L) <0.1 <0.1 <0.1
j Temp.at Receipt('C) 1.3 0.2 1.2 Stats Survival Growth
Conc. Critical Calculated Critical Calculated
Dilution H2O Batch# 60 61 62 1.5 10 20 2.41 -0.6683
Hardness(mg/L) 42 42 44 3.5 10 20 2.41 0.1304
Alkalinity(mg/L) 31 32 31 6,1 10 20 2.41 0.2919
Conductivity(umhos/cm) 152 161 166 9.15 10 20 2.41 -0.9751
12.2 10 20 2.41' -0.6397
DINQ Form AT-5 1104 [
i
t