NC0024252_Fact Sheet_20221202

Fact Sheet
NPDES Permit No. NC0024252
Permit Writer/Email Contact Nick Coco, [e-mail]:
Date: September 9, 2022
Division/Branch: NC Division of Water Resources/NPDES Municipal Permitting
Fact Sheet Template: Version 09Jan2017
Permitting Action:
❑X 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 Conover/Northeast WWTP
Applicant Address:
PO Box 549, Conover, NC 28613
Facility Address:
3680 Hillview Drive NE, Conover, NC 28613
Permitted Flow:
1.5 MGD with expanded flow tiers at 1.9 MGD & 3.0 MGD
Facility Type/Waste:
MAJOR Municipal; 100% domestic
Facility Class:
1.5 MGD and 1.9 MGD tiers: Grade III Biological Water Pollution
Control System
3.0 MGD tier: Grade IV Biological Water Pollution Control System
Treatment Units:
mechanical bar screen, aerated grit chamber, influent composite
sampler, influent pump station and metering flume, four (4) sequential
batch reactors, five (5) tertiary effluent sand filter cells, chlorination
with sodium hypochlorite, dechlorination with sodium bisulfite, cascade
post -aeration, effluent composite sampler, aerated sludge holding tank
and sludge thickening facilities
Pretreatment Program (Y/N)
Y`
County:
Catawba
Region
Mooresville
*The City of Conover has an approved pretreatment program but the industrial wastewater is sent to the
Town of Newton Clark Creek WWTP NC0036196. This facility does accept groundwater remediation
wastewater (GWR) from Jacksonlea via truck delivery. This GWR site was issued No Further Action
determinations from the Division of Waste Management for a circosol Underground Storage Tank
Page 1 of 13

incident, a toluene Above Ground Storage Tank incident and an oil release Above Ground Storage Tank
incident in 1998, 2007 and 2011, respectively.
Briefly describe the proposed permitting action and facility background: The City of Conover has
applied for an NPDES permit renewal at 1.5 MGD for the Northeast WWTP, with expansion flow tiers at
1.9 MGD and 3.0 MGD. This facility serves a population of approximately 9,500 residents from the
Cities of Conover and Hickory. Treated domestic wastewater is discharged into Lyle Creek, a class C
waterbody in the Catawba River Basin via Outfall 001. Outfall 001 is located approximately 0.5 miles
upstream of waters designated as WS-IV.
In the application, the City noted that they had just performed an I&I study on about 30,000 linear feet of
sewer line and are currently smoke testing and inspecting via CCTV the areas identified in their study.
Additionally, the City is scheduling improvements to the facility, including an upgrade to the headworks
to replace fine barscreen and grit pump/vortex grit classifier, upgrade to their SCADA system, and
upgrade from coarse bubble diffused air to fine bubble diffused air.
Sludge disposal: The City generates about 180 dry tons of residuals per year and participates in a
Regional Compost Facility (permit number WQ004563) with the City of Hickory. Thickened sludge is
loaded into a 6,000-gallon tanker and transported to the Regional Compost Facility.
2. Receiving Waterbodv Information:
Receiving Waterbody Information
Outfalls/Receiving Stream(s):
Outfall 001 — Lyle Creek
Stream Segment:
11-76-(0.5)
Stream Classification:
C
Drainage Area (mi2):
19.7*
Summer 7Q10 (cfs)
5.0*
Winter 7Q10 (cfs):
8.0*
30Q2 (cfs):
10.0*
Average Flow (cfs):
23.0*
IWC (% effluent):
32% at 1.5 MGD
37% at 1.9 MGD
48% at 3.0 MGD
2022 303(d) listed/parameter:
Not listed; but segment just downstream [11-75] is listed as
exceeding criteria for PCB fish tissue and turbidity.
Subject to TMDL/parameter:
Yes- Statewide Mercury TMDL implementation.
Basin/Sub-basin/HUC:
Catawba River/03-08-32/HUC: 03050101
USGS Topo Quad:
E14NW
* The last USGS stream flow data was obtained in 1988 and has been continued to be used to calculate
the IWC and other dilution factors.
Page 2 of 13

3. Effluent Data Summary
Effluent data for Outfall 001 is summarized below for the period of January 2018 through August 2022.
Table 1. Effluent Data Summary Outfall 001
Parameter
Units
Average
Max
Min
Permit
Limit
Flow
MGD
0.94
3.64
0.021
MA 1.5
BOD summer
mg/1
3.7
28.5
0.24
WA 12.0
MA 8.0
BOD winter
mg/1
3.5
24.9
2
WA 24.0
MA 16.0
NH3N summer
mg/1
1.0
4.85
0.2
WA 6.0
MA 2.0
NH3N winter
mg/1
0.8
4.8
0.2
WA 14.1
MA 4.7
TSS
mg/1
3.1
28.5
0.24
WA 45.0
MA 30.0
pH
SU
6.9
7.5
5.9
6.0 > pH <
9.0
Fecal coliform
#/100 ml
2.1
340
< 1
(geometric)
WA 400
MA 200
DO
mg/1
7.9
11.6
5
DA >5.0
TRC
µg/1
13.4
60
< 1
DM 28.0
(< 50
compliance)
Temperature
° C
17.9
25.2
1.32
Monitor &
Report
TN
mg/1
7.6
27.59
1.3
Monitor &
Report
TP
mg/1
1.9
6.72
0.27
Monitor &
Report
Total Copper
ug/1
4.2
< 20
1.3
MA 28.9
DM 35.3
Total Silver
ug/1
Non -detect
< 10
< 1
Monitor &
Report
Total Zinc
ug/1
103.9
243
64
Monitor &
Report
Total Hardness
mg/1
27.9
37.8
22
Monitor &
Report
MA -Monthly Average, WA -Weekly Average, DM -Daily Maximum, DA=Daily Average
4. Instream Data Summary
Page 3 of 13

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).
If applicable, summarize any instream data and what instream monitoring will be proposed for this
permit action: The current permit requires instream monitoring for dissolved oxygen and temperature
upstream 75-feet from the outfall and downstream approximately 2 miles at the end of the road at Rock
Barn Pump Station 1. Instream monitoring is conducted three times per week during June, July, August
and September, and once per week during the rest of the year. Additionally, upstream hardness sampling
is required at a quarterly frequency. Data was observed from January 2018 to June 2022. The data has
been summarized in Table 2 below.
Table 2. Instream Monitoring Data Summary
Parameter
Units
Upstream
Downstream
Average
Max
Min
Average
Max
Min
Temperature
° C
17.8
25.2
3.9
17.5
25.5
1.8
DO
mg/1
8.9
13.6
6
9.0
18.9
5.6
Total hardness
mg/1
21.6
30
15
-
-
-
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 29 degrees Celsius [per 15A NCAC 02B .0211 (18)]
during the period reviewed. Downstream temperature was greater than upstream temperature by more
than 2.8 degrees Celsius on 5 occasions during the period reviewed. Review of concurrent effluent
temperature for these 5 occasions did not demonstrate a consistent relationship between elevated effluent
temperatures and elevated downstream temperature. Additionally, it was concluded that no statistically
significant difference exists between upstream and downstream temperature.
Downstream DO did not drop below 5 mg/L [per 15A NCAC 02B .0211 (6)] during the period reviewed.
It was concluded that no statistically significant difference exists between upstream and downstream DO.
Based on review of 2018 Lyle Creek study data indicating elevated levels of fecal coliform and turbidity
instream, the 2022 303(d) listing of waters downstream of the facility as exceeding criteria for turbidity,
and discussion with the Basin Planning Branch and Mooresville Regional Office, instream monitoring for
turbidity and fecal coliform has been added to the permit. Additionally, based on review of the 2018
Catawba River Basin Nutrient Study and discussion with the Basin Planning Branch indicating the
development of a basin plan for the Catawba River Basin within the permit cycle, instream monitoring for
ammonia, TKN, NO2 + NO3, TN and TP has been added to the permit at a 1/month monitoring frequency.
To compile the instream monitoring requirements for ease of reference, Special Condition A.(4.) Instream
Monitoring Requirements has been added to the permit.
Is this facility a member of a Monitoring Coalition with waived instream monitoring (Y/N): NO
Name of Monitoring Coalition: NA
Page 4 of 13

5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): In September 2017, the
facility reported 2 BOD limit violations and one ammonia limit violation, each resulting in enforcement
cases. The facility reported 1 ammonia limit violation resulting in a notice of violation (NOV) in 2019. In
2020, the facility reported 1 BOD limit violation resulting in an enforcement case. The facility reported 1
pH limit violation resulting in a notice of deficiency in 2021. In 2022, the facility reported 2 BOD limit
violations resulting in enforcement cases, 1 TRC limit violation resulting in an NOV, and 1 ammonia
limit violation resulting in an enforcement case.
After discussing these limit violations with the Regional Office, it appears some troubles are related to
"issues with I&I, and the City is currently dealing with a tortilla chip company (grease) that has caused
problems. They have required this company to put in massive grease traps and they have the company
currently under a local pretreatment permit (not designated as a SIU yet). The City is planning on
upgrading the headworks and I believe they will be replacing the aeration system with diffused aeration
within the distant future as well. This facility is an older SBR design with no post EQ prior to filters,
chlorination and dechlorination. They've also had some staffing issues including the ORC dying
unexpectedly a few years ago."
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 March 2018 to June 2022.
Summarize the results from the most recent compliance inspection: The last facility inspection conducted
in December 2020 reported that the facility was compliant.
6. Water Quality -Based Effluent Limitations (WQBELs)
Dilution and Mixing Zones
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.
If permit limits are more stringent than TBELs, describe how limits were developed: The current 1.5
MGD permit limits were based on a Lyle Creek Management Strategy developed from a Level B Model
Page 5 of 13

in 1988 for dischargers to Lyle Creek to sustain the instream DO. A speculative limits letter evaluation
was issued February 12, 2014 for a proposed expansion to 3.0 MGD based on a Qua12K model. 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.
The current 1.5 MGD permit limits were based on a Lyle Creek Management Strategy developed from a
Level B Model in 1988 for dischargers to Lyle Creek to sustain the instream DO. A speculative limits
letter evaluation was issued February 12, 2014 for a proposed expansion to 3.0 MGD based on a Qua12K
model. The ammonia limits have been reviewed in the attached WLA for toxicity 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 detection limit for "less than" values; and 4) streamflows used for dilution
consideration based on 15A NCAC 2B.0206. Effective April 6, 2016, NC began implementation of
dissolved metals criteria in the RPA process in accordance with guidance titled NPDES Implementation of
Instream Dissolved Metals Standards, dated June 10, 2016.
As the facility's discharge is 0.5 miles upstream of WS-IV waters, chlorinated phenolic compounds, total
dissolved solids and nitrate were assessed. All chlorinated phenols were reported as non -detected in the
2017, 2018 and 2021 effluent pollutant scans. Nitrite + Nitrate values were used in conducting a
reasonable potential analysis for nitrate. Total hardness was not greater than 100 mg/L as CaCO3 during
the period reviewed.
A reasonable potential analysis was conducted on effluent toxicant data collected between January 2018
and June 2022. 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 at 1.5 MGD or 1.9 MGD flow tiers; Total Zinc (MA
251.9 ug/L, DM 251.9 ug/L) at 3.0 MGD flow tier
• 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,
Page 6 of 13

but the maximum predicted concentration was >50% of the allowable concentration: Total Zinc
at 1.5 MGD and 1.9 MGD flow tiers
• 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 Copper, Total Silver
• POTW Effluent Pollutant Scan Review: Three effluent pollutant scans 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
Arsenic, Total Cadmium, Total Phenolic Compounds, Total Chromium, Total Lead,
Total Nickel, Total Selenium, Total Dissolved Solids
Note: Based on the limited dataset from the 3 PPAs, nitrate was predicted to reach levels > 50% of the
allowable discharge concentration. TKN and NO2+NO3 reporting has been proposed with this renewal to
accompany the existing monthly TN monitoring requirement.
Due confusion related to staff changes, the PPA specified in the permit to be conducted in 2019 was
conducted instead in 2021. This same circumstance led to confusion at the facility with regard to total
silver monitoring. Specifically, the Permittee did not achieve 1 ug/L PQL for all samples (only 11 out of
20) despite the permit specifying this PQL. However, as this facility discharges 100% treated domestic
wastewater and 11 samples were reported as non -detect at 1 ug/L, silver is not expected in the effluent. To
verify this expectation, quarterly monitoring for total silver has been maintained for 1 year from the
effective date of the permit. Should the facility detect total silver in the effluent during that year of
sampling, quarterly monitoring shall be maintained. Should the quarterly samples consistently be reported
as non -detect, then the total silver effluent monitoring may be removed without need for reopening the
permit. The Permittee shall report total silver monitoring to a PQL of 1 ug/L, including when
conducting their PPAs.
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.
Page 7 of 13

Describe proposed toxicity test requirement: This is a Major POTW, and a chronic WET limit at 32%
effluent at 1.5 MGD, 37% effluent at 1.9 MGD and 48% effluent at 3.0 MGD 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
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/1
Table 3. Mercury Effluent Data Summary
2017
2018
2021
# of Samples
1
1
1
Annual Average Conc. ng/L
0.5
< 0.5
0.62
Maximum Conc., ng/L
0.5
< 0.5
0.62
TBEL, ng/L
47
WQBEL, ng/L
24.9
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. The mercury TMDL evaluation was conducted considering the 3.0 MGD expanded flow
tier. As the facility reported no quantifiable levels of mercury > 1 ng/1, a mercury minimization plan
(MMP) is not required, and thus has not been added to the permit.
Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation
within this permit: NA
Other WQBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: NA
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
BOD5/TSS for Monthly Average, and 45 mg/l for BOD5/TSS for Weekly Average). YES
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA
Are 85% removal requirements for BOD5/TSS included in the permit? YES
Page 8 of 13

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
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 2B.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.
To identify PFAS contamination in waters classified as Water Supply (WS) waters, monitoring
requirements are to be implemented in permits that discharge to WS waters. As the Northeast WWTP has
discharges treated wastewater approximately 0.5 miles upstream of waters designated as WS-IV,
monitoring of PFAS chemicals will be added to the permit at a frequency of 2/year. Since an EPA method
for sampling and analyzing PFAS in wastewater is not currently available, the PFAS sampling
requirement in the Permit includes a compliance schedule which delays the effective date of this
requirement until the first full calendar quarter beginning 6 months after EPA has a final wastewater
method in 40 CFR136 published in the Federal Register. This date may be extended upon request and if
there are no NC -certified labs.
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
Page 9 of 13

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 1.5 MGD with expansion
to 1.9 MGD and 3.0 MGD
No change
15A NCAC 2B .0505
BOD5
All flow tiers:
Summer
No change
WQBEL. 1988 Level B model,
verified by 2014 Qua12K model;
Surface Water Monitoring, 15A
NCAC 2B. 0500
MA 8.0 mg/1
WA 12.0 mg/1
Winter:
MA 16.0 mg/1
WA 24.0 mg/1
1.5 MGD & 1.9 MGD:
Monitor and report 3/Week
3.0 MGD:
Monitor and report Daily
NH3-N
1.5 MGD tier:
Summer
No change
WQBEL. 1988 Level B model,
verified by 2014 Qua12K model and
2022 WLA review; Surface Water
Monitoring, 15A NCAC 2B. 0500
MA 2.0 mg/1
WA 6.0 mg/1
Winter:
MA 4.O mg/1
WA 12.0 mg/1
Monitor and report 3/Week
1.9 MGD tier:
Summer -
MA 2.0 mg/1
WA 6.0 mg/1
Winter:
MA 4.O mg/1
WA 12.0 mg/1
Monitor and report 3/Week
3.0 MGD tier:
Summer -
MA 1.8 mg/1
WA 5.4 mg/1
Winter:
MA 4.0 mg/1
WA 12.0 mg/1
Monitor and report Daily
TSS
All flow tiers:
MA 30.0 mg/1
WA 45.0 mg/1
No change
TBEL. Secondary treatment
standards/40 CFR 133 / 15A NCAC
2B .0406; 1988 Level B Model;
Page 10 of 13

1.5 MGD & 1.9 MGD:
Monitor and report 3/Week
3.0 MGD:
Monitor and report Daily
Surface Water Monitoring, 15A
NCAC 2B. 0500
Fecal coliform
All flow tiers:
MA 200 /100m1
WA 400 /100m1
1.5 MGD & 1.9 MGD:
Monitor and report 3/Week
3.0 MGD:
Monitor and report Daily
No change
WQBEL. State WQ standard, 15A
NCAC 2B .0200; Surface Water
Monitoring, 15A NCAC 2B. 0500;
DO
All flow tiers:
> 5 mg/1
1.5 MGD & 1.9 MGD:
Monitor and report 3/Week
3.0 MGD:
Monitor and report Daily
No change
WQBEL. State WQ standard, 15A
NCAC 2B .0200; Surface Water
Monitoring, 15A NCAC 2B. 0500
pH
All flow tiers:
6 - 9 SU
1.5 MGD & 1.9 MGD:
Monitor and report 3/Week
3.0 MGD:
Monitor and report Daily
No change
WQBEL. State WQ standard, 15A
NCAC 2B .0200; Surface Water
Monitoring, 15A NCAC 2B. 0500
Temperature
All flow tiers:
Monitor and report Daily
No change
Surface Water Monitoring, 15A
NCAC 2B. 0500
Total Residual
Chlorine
All flow tiers:
DM 28 ug/L
1.5 MGD & 1.9 MGD:
Monitor and report 3/Week
3.0 MGD:
Monitor and report Daily
No change
WQBEL. 2022 WLA review.
Surface Water Monitoring, 15A
NCAC 2B. 0500
Total Copper
1.5 MGD tier:
MA 28.9 ug/1
DM 35.3 ug/1
5-year compliance schedule
1.9 MGD tier:
MA 25.3 ug/1
DM 31.4 ug/1
3.0 MGD tier:
MA 20.5 ug/1
DM 26.0 ug/1
Remove
requirements
Based on results of Reasonable
Potential Analysis (RPA); No RP,
Predicted Max < 50% of Allowable
Cw - No Monitoring required
Page 11 of 13

All flow tiers:
Monitor and report Monthly
Total Nitrogen
All flow tiers:
Monitor and report Monthly
No change
Surface Water Monitoring, 15A
NCAC 2B. 0500
TKN
No requirement
Monitor and report
monthly
Sampled already in TN calculation.
For tracking TN constituents.
Nitrate + Nitrite
No requirement
Monitor and report
monthly
Sampled already in TN calculation.
For tracking TN constituents.
Total
Phosphorus
All flow tiers:
Monitor and report Monthly
No change
Surface Water Monitoring, 15A
NCAC 2B. 0500
Total Zinc
All flow tiers:
Monitor and Report Quarterly
1.5 MGD & 1.9
MGD: No change
3.0 MGD tier:
MA 251.9 ug/1
DM 251.9 ug/1
Monitor and report
Monthly
Based on results of Reasonable
Potential Analysis (RPA);
1.5 & 1.9 MGD flow tiers:
No RP , Predicted Max > 50% of
Allowable Cw - apply Quarterly
Monitoring
3.0 MGD flow tier:
RP shown - apply Monthly
Monitoring with Limits
Total Silver
All flow tiers:
Monitor and Report Quarterly
All flow tiers:
Monitor and Report
Quarterly for 1 year
from the effective
date of the permit;
remove if all results
are non -detect < 1
ug/L
Permit specifies PQL of 1 ug/L;
Insufficiently sensitive test methods
used on nearly 50% of samples —
maintain quarterly monitoring for 1
year at correct PQL to verify
absence of silver in effluent.
Permittee shall sample to correct
PQL.
Total Hardness
Quarterly monitoring
Upstream and in Effluent
No change
Hardness -dependent dissolved
metals water quality standards
approved in 2016
PFAS
No requirement
Add 2/year
monitoring with
delayed
implementation
Evaluation of PFAS contribution:
facility discharges 0.5 miles
upstream of WS-IV waters;
Implementation delayed until after
EPA certified method becomes
available.
Instream
Monitoring
Monitor and report dissolved
oxygen and temperature at
variable frequency
Special Condition
A.(4.) Instream
Monitoring
Requirements
No change to
dissolved oxygen
and temperature
Monitor and report
fecal coliform and
turbidity at variable
frequency
Surface Water Monitoring, 15A
NCAC 2B. 0500;
Review of 2018 Lyle Creek study
data indicating elevated levels of
fecal coliform and turbidity
instream; downstream waterbody
exceeding criteria for turbidity; 2018
Catawba River Basin Nutrient Study
and discussion with the Basin
Planning Branch indicating the
development of a basin plan for the
Catawba River Basin within the
permit cycle; discussion with the
Page 12 of 13

Monitor and report
for ammonia, TKN,
NO2+NO3, TN,
and TP once per
month
Basin Planning Branch and
Mooresville Regional Office
Toxicity Test
1.5 MGD tier:
Chronic limit, 32% effluent
1.9 MGD tier:
Chronic limit, 37% effluent
3.0 MGD tier:
Chronic limit, 48% effluent
No change
WQBEL. No toxics in toxic
amounts. 15A NCAC 2B.0200 and
15A NCAC 2B.0500
Effluent
Pollutant Scan
Three times per permit cycle
No change;
conducted in 2024,
2025, 2026
40 CFR 122
Electronic
Reporting
Electronic Reporting Special
Condition
No change
In accordance with EPA Electronic
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: 10/07/2022
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 [phone] or via email at [e-mail].
15. Fact Sheet Addendum (if applicable):
The draft was submitted to the City of Conover, EPA Region IV, and the
Division's Mooresville Regional Office, Aquatic Toxicology Branch, Basin Planning
Branch and Operator Certification Program for review.
No comments were received from any party.
Were there any changes made since the Draft Permit was public noticed (Yes/No): NO
If Yes, list changes and their basis below: NA
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
• WET Testing and Self -Monitoring Summary
• Compliance Inspection Report
• Requested Additional Information
• Chemical Addendum
Page 13 of 13

Firefox
about:blank
AFFP
NORTHEAST
Affidavit of Publication
STATE OF NC )
COUNTY OF HARNETT }
SS
The Undersigned, being duly sworn, says:
That she is Representative of the The Daily Record, a
daily newspaper of general circulation, printed and
published in Dunn, Harnett County NC: that the
publication, a copy of which is attached hereto, was
published in the said newspaper on the following dates.
October 11 2022
This newspaper is qualified for legal advertising in
accordance with N.C.G.S 1-597 AND 1-598
That said newspaper was regularly issued and circulated
on those dates.
Representative
Subscribed to and sworn to me this 11th day of October
2022.
l,412.1)4( 4LCJJ
Harnett County NC
My commission expires: July 23, 2027
••01 0$ ANTj
,z• z .c,..- No 2O , ..
, co; f DTARy� C-
Z:SPUBLICr.v
00030975 00068164 733-0719 ', �'P,� S•S�ONE e05.
COON
NCDENR- DEQ-DIVISION OF WATER RESOU'I ,...••••
ATTN: WREN THEDFORD
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
Public Notice
North Carolina Environmental Management
Commission/NPDES Unit
1617 Mail Service Center^-.
Raleigh, NC 27699-1617 -
Notice of Intent to Issue a NPDES Wastewater Permit
NC0024252 Northeast WWTP The North Carolina
Environmental Management Commission proposes
to issue a NPDES wastewater discharge permit to the
person(s) listed below. Written comments regarding the
proposed permit will be accepted until 30 days after the
publish date of this notice. The Director of the NC Division
of Water Resources (DWR) may hold a public hearing
should there be a significant degree of public interest.
Please mail comments and/or information requests to
DWR at the above address. Interested persons may visit
the DWR at 512 N. Salisbury Street, Raleigh, NC 27604
to review the information on file. Additional information
on NPDES permits and this notice may be found on our
website: htto://deq.nc.gov/about/divisionslwater-resources/
water-resources-permits/wastewater-b ranch/npdes-
wastewater/public-notices, or by calling [phone].
The City of Conover [P. 0. Box 549, Conover, NC 286131
has requested renewal of NPDES permit NC0024252
for its Northeast Wastewater Treatment Plant, located in
Catawba County. This permitted facility discharges treated
municipal and industrial wastewater to Lyle Creek, a class
C water in the Catawba River Basin. BOD5, ammonia,
fecal coliform, dissolved oxygen, pH, total residual chlorine,
and total zinc are water quality limited. This discharge may
affect future allocations in this segment of Lyle Creek.
10/11/2022
1 of 2
11/10/2022, 11:07 AM

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Project Information
❑ CHECK IF HQW OR ORW WQS
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
HUC Number
Stream Class
Northeast WWTP
III
NC0024252
001
1.500
Lyle Creek
03050101
C
✓ Apply WS Hardness WQC
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1 Q10s (cfs)
Effluent Hardness
Upstream Hardness
Combined Hardness Chronic
Combined Hardness Acute
5.000
8.00
10.00
23.00
4.17
28.17 mg/L (Avg) --
25 mg/L (Avg) --
26.01 mg/L
26.13 mg/L
Data Source(s)
Outfall 001 located 0.5 miles upstream of WS-IV
waters. WS standards used for protection of
downstream water use. Default upstream hardness
of 25 mg/L used, as average upstream hardness for
review period was lower than 25 mg/L. Nitrate +
Nitrite data used for assessing nitrate.
❑ CHECK TO APPLY MODEL
Table 2. Parameters of Concern
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
Name
WQS
Type Chronic Modifier
Acute
PQL Units
Arsenic
Aquactic Life
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HH/WS
N/A
ug/L
Beryllium
Aquatic Life
NC
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NC
0.6077
FW
3.3676
ug/L
Chlorides
Water Supply
NC
250
WS
ng/L
Chlorinated Phenolic Compounds
Water Supply
NC
1
A
ug/L
yTotal Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
121.5975
FW
938.5755
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
pg/L
Chromium, Total
Aquatic Life
NC
N/A
FW
N/A
pg/L
Copper
Aquatic Life
NC
8.1507
FW
10.9190
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
NC
1,800
FW
ug/L
Lead
Aquatic Life
NC
3.0752
FW
79.3534
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
ng/L
Molybdenum
Water Supply
NC
160
WS
ug/L
Nickel
Aquatic Life
NC
38.4945
FW
348.0302
pg/L
Nickel
Water Supply
NC
25.0000
WS
N/A
pg/L
Selenium
Aquatic Life
NC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.3199
ug/L
Zinc
Aquatic Life
NC
131.0400
FW
130.5209
ug/L
Nitrate
Water Supply
NC
to
WS
mg/L
TDS
Water Supply
NC
500
WS
mg/L
24252 RPA, input
9/14/2022

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Project Information
❑ CHECK IF HQW OR ORW WQS
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
HUC Number
Stream Class
Northeast WWTP
III
NC0024252
001
1.900
Lyle Creek
03050101
C
✓ Apply WS Hardness WQC
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1 Q10s (cfs)
Effluent Hardness
Upstream Hardness
Combined Hardness Chronic
Combined Hardness Acute
5.000
8.00
10.00
23.00
4.17
28.17 mg/L (Avg) --
25 mg/L (Avg) --
26.17 mg/L
26.31 mg/L
Data Source(s)
Outfall 001 located 0.5 miles upstream of WS-IV
waters. WS standards used for protection of
downstream water use. Default upstream hardness
of 25 mg/L used, as average upstream hardness for
review period was lower than 25 mg/L. Nitrate +
Nitrite data used for assessing nitrate.
❑ CHECK TO APPLY MODEL
Table 2. Parameters of Concern
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
Name
WQS
Type Chronic Modifier
Acute
PQL Units
Arsenic
Aquactic Life
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HH/WS
N/A
ug/L
Beryllium
Aquatic Life
NC
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NC
0.6107
FW
3.3875
ug/L
Chlorides
Water Supply
NC
250
WS
ng/L
Chlorinated Phenolic Compounds
Water Supply
NC
1
A
ug/L
yTotal Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
122.2434
FW
943.7861
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
pg/L
Chromium, Total
Aquatic Life
NC
N/A
FW
N/A
pg/L
Copper
Aquatic Life
NC
8.1959
FW
10.9888
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
NC
1,800
FW
ug/L
Lead
Aquatic Life
NC
3.0976
FW
79.9593
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
ng/L
Molybdenum
Water Supply
NC
160
WS
ug/L
Nickel
Aquatic Life
NC
38.7058
FW
350.0262
pg/L
Nickel
Water Supply
NC
25.0000
WS
N/A
pg/L
Selenium
Aquatic Life
NC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.3236
ug/L
Zinc
Aquatic Life
NC
131.7603
FW
131.2706
ug/L
Nitrate
Water Supply
NC
to
WS
mg/L
TDS
Water Supply
NC
500
WS
mg/L
24252 RPA, input
9/14/2022

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Project Information
❑ CHECK IF HQW OR ORW WQS
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
HUC Number
Stream Class
Northeast WWTP
III
NC0024252
001
3.000
Lyle Creek
03050101
C
✓ Apply WS Hardness WQC
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1 Q10s (cfs)
Effluent Hardness
Upstream Hardness
Combined Hardness Chronic
Combined Hardness Acute
5.000
8.00
10.00
23.00
4.17
28.17 mg/L (Avg) --
25 mg/L (Avg) --
26.53 mg/L
26.67 mg/L
Data Source(s)
Outfall 001 located 0.5 miles upstream of WS-IV
waters. WS standards used for protection of
downstream water use. Default upstream hardness
of 25 mg/L used, as average upstream hardness for
review period was lower than 25 mg/L. Nitrate +
Nitrite data used for assessing nitrate.
❑ CHECK TO APPLY MODEL
Table 2. Parameters of Concern
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
Name
WQS
Type Chronic Modifier
Acute
PQL Units
Arsenic
Aquactic Life
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HH/WS
N/A
ug/L
Beryllium
Aquatic Life
NC
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NC
0.6169
FW
3.4279
ug/L
Chlorides
Water Supply
NC
250
WS
ng/L
Chlorinated Phenolic Compounds
Water Supply
NC
1
A
ug/L
yTotal Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
123.5893
FW
954.3188
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
pg/L
Chromium, Total
Aquatic Life
NC
N/A
FW
N/A
pg/L
Copper
Aquatic Life
NC
8.2901
FW
11.1300
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
NC
1,800
FW
ug/L
Lead
Aquatic Life
NC
3.1446
FW
81.1876
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
ng/L
Molybdenum
Water Supply
NC
160
WS
ug/L
Nickel
Aquatic Life
NC
39.1461
FW
354.0620
pg/L
Nickel
Water Supply
NC
25.0000
WS
N/A
pg/L
Selenium
Aquatic Life
NC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.3313
ug/L
Zinc
Aquatic Life
NC
133.2614
FW
132.7865
ug/L
Nitrate
Water Supply
NC
to
WS
mg/L
TDS
Water Supply
NC
500
WS
mg/L
24252 RPA, input
9/14/2022

REASONABLE POTENTIAL ANALYSIS
H1
Effluent Hardness
Date Data
3/7/2018
6/6/2018
9/12/2018
9/13/2018
12/11/2018
3/13/2019
6/19/2019
9/11/2019
12/11/2019
3/11/2020
6/10/2020
9/16/2020
12/16/2020
3/10/2021
6/9/2021
9/15/2021
12/8/2021
3/9/2022
6/8/2022
22
25
30
37.8
30
29
25
30
23
27
24
27
26
24
36
32.4
27
27
33
BDL=1/2DL
22
25
30
37.8
30
29
25
30
23
27
24
27
26
24
36
32.4
27
27
33
Results
Std Dev.
Mean
C.V.
n
10th Per value
Average Value
Max. Value
Use "PASTE SPECIAL.
Values" then "COPY"
. Maximum data
points = 58
H2
Upstream Hardness
4.3196
28.1684
0.1533
19
23.80 mg/L
28.17 mg/L
37.80 mg/L
-1-
Date Data
Defau It
25
BDL=1/2DL
25
Results
Std Dev.
Mean
C.V.
n
10th Per value
Average Value
Max. Value
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
N/A
25.0000
0.0000
1
25.00 mg/L
25.00 mg/L
25.00 mg/L
24252 RPA, data
9/15/2022

REASONABLE POTENTIAL ANALYSIS
Par01 & Par02
Arsenic
Date Data BDL=1/2DL Results
1 11 /21 /2017 < 1 0.5 Std Dev.
2 9/13/2018 < 5 2.5 Mean
3 6/16/2021 < 10 5 C.V. (default)
4 n
5
6 Mult Factor =
7 Max. Value
8 Max. Pred Cw
9
10
11
12
13
14
15
16
17
18
19
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
Use "PASTE SPECIAL.
Values" then "COPY"
. Maximum data
points = 58
2.2546
2.6667
0.6000
3
3.00
5.0 ug/L
15.0 ug/L
24252 RPA, data
- 2 - 9/15/2022

REASONABLE POTENTIAL ANALYSIS
Par03
Beryllium
Date Data BDL=1/2DL Results
1 11/21/2017 < 1 0.5 Std Dev.
2 9/13/2018 < 1 0.5 Mean
3 6/16/2021 < 1 0.5 C.V. (default)
4 n
5
6 Mult Factor =
7 Max. Value
8 Max. Pred Cw
9
10
11
12
13
14
15
16
17
18
19
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
Use "PASTE SPECIAL.
Values" then "COPY"
. Maximum data
points = 58
Par04
Cadmium
0.0000
0.5000
0.6000
3
3.00
0.50 ug/L
1.50 ug/L
Date Data BDL=1/2DL Results
1 11/21/2017 < 0.5 0.25 Std Dev.
2 9/13/2018 < 2 1 Mean
3 6/16/2021 < 1 0.5 C.V. (default)
4 n
5
6 Mult Factor =
7 Max. Value
8 Max. Pred Cw
9
10
11
12
13
14
15
16
17
18
19
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
Use "PASTE SPECIAL.
Values" then "COPY"
. Maximum data
points = 58
0.3819
0.5833
0.6000
3
3.00
1.000 ug/L
3.000 ug/L
24252 RPA, data
- 3 - 9/15/2022

REASONABLE POTENTIAL ANALYSIS
Par07
Total Phenolic Compounds
Date Data BDL=1/2DL Results
1 11/21/2017 < 5 2.5 Std Dev.
2 9/13/2018 < 5 2.5 Mean
3 6/15/2021 < 20 10 C.V. (default)
4 n
5
6 Mult Factor =
7 Max. Value
8 Max. Pred Cw
9
10
11
12
13
14
15
16
17
18
19
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
Use "PASTE SPECIAL.
Values" then "COPY"
. Maximum data
points = 58
Par10
Chromium, Total
4.3301
5.0000
0.6000
3
3.00
10.0 ug/L
30.0 ug/L
Date Data BDL=1/2DL Results
1 11/21/2017 < 1 0.5 Std Dev. 1.1547
2 9/13/2018 < 5 2.5 Mean 1.8333
3 6/16/2021 < 5 2.5 C.V. (default) 0.6000
4 n 3
5
6 Mult Factor = 3.00
7 Max. Value 2.5 pg/L
8 Max. Pred Cw 7.5 pg/L
9
10
11
12
13
14
15
16
17
18
19
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
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
24252 RPA, data
- 4 - 9/15/2022

REASONABLE POTENTIAL ANALYSIS
Pall
Copper
Date Data BDL=1/2DL Results
1 1/4/2018 < 5 2.5 Std Dev.
2 2/15/2018 < 5 2.5 Mean
3 3/7/2018 1.73 1.73 C.V.
4 4/11/2018 < 5 2.5 n
5 5/9/2018 6 6
6 6/6/2018 2 2 Mult Factor =
7 7/11/2018 2 2 Max. Value
8 8/8/2018 2 2 Max. Pred Cw
9 9/11/2018 < 5 2.5
10 9/13/2018 < 5 2.5
11 10/3/2018 3 3
12 11/8/2018 2 2
13 12/12/2018 < 5 2.5
14 1/9/2019 < 5 2.5
15 2/6/2019 < 5 2.5
16 3/13/2019 5 5
17 4/10/2019 < 5 2.5
18 5/8/2019 < 5 2.5
19 6/19/2019 < 5 2.5
20 7/10/2019 2 2
21 8/7/2019 2.72 2.72
22 9/11/2019 < 5 2.5
23 10/16/2019 3 3
24 11/6/2019 1.69 1.69
25 12/11/2019 < 5 2.5
26 1/8/2020 1.47 1.47
27 2/5/2020 2.4 2.4
28 3/11/2020 2.33 2.33
29 4/17/2020 1.93 1.93
30 5/6/2020 1.35 1.35
31 6/10/2020 < 5 2.5
32 7/9/2020 2.77 2.77
33 8/5/2020 1.79 1.79
34 9/16/2020 < 5 2.5
35 10/14/2020 1.95 1.95
36 11/4/2020 < 5 2.5
37 12/16/2020 < 5 2.5
38 1/6/2021 1.3 1.3
39 2/3/2021 < 5 2.5
40 3/10/2021 < 5 2.5
41 4/21/2021 < 5 2.5
42 5/5/2021 < 5 2.5
43 6/9/2021 < 5 2.5
44 7/7/2021 < 5 2.5
45 8/4/2021 < 5 2.5
46 9/15/2021 < 5 2.5
47 10/6/2021 < 5 2.5
48 11/3/2021 < 2 1
49 12/8/2021 < 5 2.5
50 1/5/2022 2.9 2.9
51 2/9/2022 < 5 2.5
52 4/12/2022 < 5 2.5
53 5/11/2022 < 5 2.5
54 6/8/2022 < 5 2.5
55 7/13/2022 < 5 2.5
56
57
58
Use "PASTE SPECIAL.
Values" then "COPY"
. Maximum data
points = 58
Par12
Cyanide
0.7308
2.4424
0.2992
55
1.01
6.00 ug/L
6.06 ug/L
Date Data BDL=1/2DL Results
1 11 /21 /2017 < 5 5 Std Dev.
2 9/13/2018 < 5 5 Mean
3 6/22/2021 < 10 5 C.V. (default)
4 n
5
6 Mult Factor =
7 Max. Value
8 Max. Pred Cw
9
10
11
12
13
14
15
16
17
18
19
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
Use "PASTE SPECIAL.
Values" then "COPY"
. Maximum data
points = 58
0.0000
5.00
0.6000
3
3.00
5.0 ug/L
15.0 ug/L
24252 RPA, data
- 5 - 9/15/2022

REASONABLE POTENTIAL ANALYSIS
Par14
Lead
Date
11/21/2017 <
9/13/2018 <
6/16/2021 <
1
5
5
BDL=1/2DL
0.5
2.5
2.5
Results
Std Dev.
Mean
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL.
Values" then "COPY"
. Maximum data
points = 58
Par17 & Par18
Nickel
1.1547
1.8333
0.6000
3
3.00
2.500 ug/L
7.500 ug/L
Date Data
11/21/2017
9/13/2018 <
6/16/2021 <
1
5
5
BDL=1/2DL
1
2.5
2.5
Results
Std Dev.
Mean
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE
SPECIAL -Values"
then "COPY" .
Maximum data
points = 58
0.8660
2.0000
0.6000
3
3.00
2.5 pg/L
7.5 pg/L
24252 RPA, data
- 6 - 9/15/2022

REASONABLE POTENTIAL ANALYSIS
Par19
Selenium
Date Data
11/21/2017 <
9/13/2018 <
6/16/2021 <
1
5
10
BDL=1/2DL
0.5
2.5
5
Results
Std Dev.
Mean
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE
SPECIAL -Values
then "COPY" .
Maximum data
points = 58
Par20
Silver
2.2546
2.6667
0.6000
3
3.00
5.0 ug/L
15.0 ug/L
Date Data
3/7/2018
6/6/2018
9/11/2018
9/13/2018
12/12/2018
3/13/2019
6/19/2019
8/7/2019
9/11/2019
12/11/2019
3/11/2020
6/10/2020
9/16/2020
12/16/2020
3/10/2021
6/9/2021
9/15/2021
12/8/2021
3/9/2022
6/8/2022
11/21/2017
9/13/2018
6/16/2021
1
1
1
5
5
1
1
1
1
1
1
1
1
5
5
5
5
5
10
5
1
5
5
BDL=1/2DL
0.5
0.5
0.5
2.5
2.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
2.5
2.5
2.5
2.5
2.5
5
2.5
0.5
2.5
2.5
Results
Std Dev.
Mean
C.V.
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL -
Values" then "COPY" .
Maximum data points =
58
1.2459
1.5652
0.7960
23
1.40
5.000 ug/L
7.000 ug/L
24252 RPA, data
- 7 - 9/15/2022

REASONABLE POTENTIAL ANALYSIS
Par21
Zinc
Date Data
3/7/2018
6/6/2018
9/11/2018
9/13/2018
12/12/2018
3/13/2019
6/19/2019
8/7/2019
9/11/2019
12/11/2019
3/11/2020
6/10/2020
9/16/2020
12/16/2020
3/10/2021
6/9/2021
9/15/2021
12/8/2021
3/9/2022
6/8/2022
11/21/2017
9/13/2018
6/16/2021
93.4
197
243
163
83.5
113
66.1
80.2
98
102
113
82.4
68.3
76.7
84.3
104
74.7
106
64.4
64
102
163
97.1
BDL=1/2DL
93.4
197
243
163
83.5
113
66.1
80.2
98
102
113
82.4
68.3
76.7
84.3
104
74.7
106
64.4
64
102
163
97.1
Results
Std Dev.
Mean
C.V.
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL -
Values" then "COPY" .
Maximum data points =
58
Par22
Nitrate
44.9897
106.0478
0.4242
23
1.22
243.0 ug/L
296.5 ug/L
Date Data BDL=1/2DL
9/13/2018 0.34 0.34
6/17/2021 3.3 3.3
11/16/2017 5.9 5.9
Results
Std Dev. 2.7819
Mean 3.1800
C.V. (default) 0.6000
n 3
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE
SPECIAL -Values"
then "COPY" .
Maximum data
points = 58
3.00
5.9 mg/L
17.7 mg/L
24252 RPA, data
- 8 - 9/15/2022

REASONABLE POTENTIAL ANALYSIS
Par23
TDS
Date Data
9/13/2018
6/14/2021
11/16/2017
261
229
244
BDL=1/2DL
261
229
244
Results
Std Dev.
Mean
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE
SPECIAL -Values"
then "COPY" .
Maximum data
points = 58
16.0104
244.7
0.6
3
3.00
261 mg/L
783 mg/L
-9-
24252 RPA, data
9/15/2022

Northeast WWTP
NC0024252
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw (MGD) = 1.5000
1Q10S (cfs) = 4.17
7Q1OS (cfs) = 5.00
7Q1OW (cfs) = 8.00
30Q2 (cfs) = 10.00
Avg. Stream Flow, QA (cfs) = 23.00
Receiving Stream: Lyle Creek HUC 03050101
WWTP/WTP Class: III
IWC% @ 1Q10S = 35.79676674
IWC% @ 7Q1OS = 31.74061433
IWC% @ 7Q1 OW = 22.51815981
IWC% @ 30Q2 = 18.86409736
IW%C @ QA = 9.18065153
Stream Class: C
Outfall 001
Qw = 1.5 MGD
COMBINED HARDNESS (mg/L)
Acute = 26.13 mg/L
Chronic = 26.01 mg/L
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS WATER SUPPLY
Effluent Hard: 0 value > 100 mg/L
Effluent Hard Avg = 28.17 mg/L
PARAMETER
TYPE
NC STANDARDS OR EPA CRITERIA
_1w
a
D
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
Chronic Stanpda d Acute
n # Det. Max Pred Cw Allowable Cw
Arsenic
Arsenic
C
C
150 FW(7Q10s) 340
10 HH/WS(Qavg)
ug/L
ug/L
3 0
Note: n < 9
Limited data set
15.0C.V. (default)
NO DETECTS
Acute (FW): 949.8
Max MDL =f0____ _____
Chronic (IR1): 108.9
Max MDL = 10
_ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Cadmium
NC
0.6077 FW(7Q10s) 3.3676
ug/L
3 0
Note: n < 9
Limited data set
3.000
C.V. (default)
NO DETECTS
Acute: 9.408
Chronic: 1.915
Max MDL=2
All non -detects <2 ug/L, <1 ug/L and <0.5 ug/L- No
Monitoring required; Permittee shall report to PQL of
at most 1 ug/L.
Total Phenolic Compounds
NC
300 A(30Q2)
ug/L
3 0
Note: n < 9
Limited data set
30.0
C.V. (default)
NO DETECTS
Acute: NO WQS
_ _ _ _ _ _ _
Chronic: 1,590.3
Max MDL =20
_ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Chromium III
NC
121.5975 FW(7Q10s) 938.5755
µg/L
0 0
N/A
Acute: 2,622.0
-- _ _ _ -----_ _ ------------------------------
Chronic:383.1
Chromium VI
NC
11 FW(7Q10s) 16
µg'L
0 0
N/A
Acute: 44.7
--•---------------------------
Chromium, Total
NC
µg/L
3 0
Note: n < 9
Limited data set
7.5
C.V. (default)
NO DETECTS
Max reported value = 2.5
Max MDL = 5
a: No monitoring required if all Total Chromium
samples are < 5 pg/L or Pred. max for Total Cr is <
allowable Cw for Cr VI.
Copper
NC
8.1507 FW(7Q10s) 10.9190
ug/L
55 22
6.06
Acute: 30.50
___ _ _ ____________
Chronic: 25.68
No value > Allowable Cw
_ _ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Cyanide
NC
5 FW(7Q10s) 22
10
ug/L
3 0
Note: n < 9
Limited data set
15.0
C.V. (default)
NO DETECTS
Acute: 61.5
___ _ _______ _____
Chronic: 15.8
Max MDL = 10
_ _ _ _ _ _ _ _ _ _ _____
All reported < 10 ug/L - no monitoring required
Lead
NC
3.0752 FW(7Q10s) 79.3534
ug/L
3 0
Note: n < 9
Limited data set
7.500
C.V. (default)
NO DETECTS
Acute: 221.678
___ _ ______ _____
Chronic: 9.688
Max MDL = 5
_ _ _ _ _ _ _ _ _ _ _
All non -detects <5 ug/L and < 1 ug/L- No Monitoring
required
Page 1 of 2
24252 RPA, rpa
9/21/2022

Northeast WWTP
Outfall 001
NC0024252 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators QW = 1.5 MGD
Nickel
Nickel
NC
NC
38.4945 FW(7Q10s) 348.0302
25.0000 WS(7Q10s)
µg/L
µg/L
3 1
Note: n < 9
Limited data set
7.5
C.V. (default)
Acute (FW): 972.2
Chronic (F'W): — 121.3 ---
No value > Allowable Cw _ _ _
Chronic (WS): 78.8
No value > Allowable Cw
--------------------- — —
_ _ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Selenium
NC
5 FW(7Q10s) 56
ug/L
3 0
Note: n < 9
Limited data set
15.0
C.V. (default)
NO DETECTS
Acute: 156.4
_ _ _ _ _ _ _ _ _
Chronic: 15.8
Max MDL=10
_ _ _ _ _ _ _ _ _ _ _ _ _ _
All non -detects <10 ug/L, < 5 ug/L and < 1 ug/L- No
Monitoring required
Silver
NC
0.06 FW(7Q10s) 0.3199
ug/L
23 0
7.000
NO DETECTS
Acute: 0.894
___ _ _______ _____
Chronic: 0.189
Max MDL = 10
_ _ _ _ _ _ _ _ _ ___ ___
All non -detects < 10 ug/L, < 5 ug/L and < 1 ug/L
BPJ; continue quarterly monitoring for 1 year, remove
monitoring if all non -detect. Permittee shall report to
lowest PQL.
Zinc
NC
131.0400 FW(7Q10s) 130.5209
ug/L
23 23
296.5
Acute: 364.6
-- Chronic:-----412.8------------------------------
No value > Allowable Cw
No RP , Predicted Max >_ 50% of Allowable Cw -
apply Quarterly Monitoring
Nitrate
NC
10 WS(7Q10s)
mg/L
3 3
Note: n < 9
Limited data set
17.70000
C.V. (default)
Acute: NO WQS
_ _
_ Chroni_ _ c: 31.505
No value > Allowable Cw
No RP-, Predicted > Max 50% of Allowable Cw _ _
facility to report monthly TKN and NO2 + NO3 to
accompany TN requirement
TDS
NC
500 WS(7Q10s)
mg/L
3 3
Note: n < 9
Limited data set
783.00000
C.V. (default)
Acute: NO WQS
_ _ _ _ _ _ _ _ _
Chronic: 1575.26882
No value > Allowable Cw
_ _ _ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Page 2 of 2
24252 RPA, rpa
9/21/2022

Northeast WWTP
NC0024252
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw (MGD) = 1.9000
1Q1OS (cfs) = 4.17
7Q1OS (cfs) = 5.00
7Q1OW (cfs) = 8.00
30Q2 (cfs) = 10.00
Avg. Stream Flow, QA (cfs) = 23.00
Receiving Stream: Lyle Creek HUC 03050101
WWTP/WTP Class: III
IWC% @ 1Q1OS = 41.39142656
IWC% @ 7Q1OS = 37.06733795
IWC% @ 7Q1OW = 26.90726359
IWC% @ 30Q2 = 22.75009656
IW%C @ QA = 11.35093467
Stream Class: C
Outfall 001
Qw = 1.9 MGD
COMBINED HARDNESS (mg/L)
Acute = 26.31 mg/L
Chronic = 26.17 mg/L
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS WATER SUPPLY
Effluent Hard: 0 value > 100 mg/L
Effluent Hard Avg = 28.17 mg/L
PARAMETER
TYPE
NC STANDARDS OR EPA CRITERIA
_1w
a
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
Chronic Stanpda d Acute
n # Det. Max Pred Cw Allowable Cw
Arsenic
Arsenic
C
C
150 FW(7Q10s) 340
10 HH/WS(Qavg)
ug/L
ug/L
3 0
Note: n < 9
Limited data set
15.0
C.V. (default)
NO DETECTS
Acute (FW): 821.4
Chronic (FW): 404.7
Max MDL =f0____ _____
Chronic (IR1): 88.1
Max MDL = 10
_ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Cadmium
NC
0.6107 FW(7Q10s) 3.3875
ug/L
3 0
Note: n < 9
Limited data set
3.000
C.V. (default)
NO DETECTS
Acute: 8.184
Chronic: 1.648
Max MDL = 2
All non -detects <2 ug/L, <1 ug/L and <0.5 ug/L- No
Monitoring required; Permittee shall report to PQL of
at most 1 ug/L.
Total Phenolic Compounds
NC
300 A(30Q2)
ug/L
3 0
Note: n < 9
Limited data set
30.0
C.V. (default)
NO DETECTS
Acute: NO WQS
_ _ _ _ _ _ _
Chronic: 1,318.7
Max MDL =20
_ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Chromium III
NC
122.2434 FW(7Q10s) 943.7861
µg/L
0 0
N/A
Acute: 2,280.1
-- _ _ _ -----_ _ ------------------------------
Chronic:329.8
Chromium VI
NC
11 FW(7Q10s) 16
µg'L
0 0
N/A
Acute: 38.7
Chronic: 29.7
11
Chromium, Total
NC
µg/L
3 0
Note: n < 9
Limited data set
7.5
C.V. (default)
NO DETECTS
Max reported value = 2.5
Max MDL = 5
a: No monitoring required if all Total Chromium
samples are < 5 pg/L or Pred. max for Total Cr is <
allowable Cw for Cr VI.
Copper
NC
8.1959 FW(7Q10s) 10.9888
ug/L
55 22
6.06
Acute: 26.55
___ _ _____________
Chronic: 22.11
No value > Allowable Cw
_ _ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Cyanide
NC
5 FW(7Q10s) 22
10
ug/L
3 0
Note: n < 9
Limited data set
15.0
C.V. (default)
NO DETECTS
Acute: 53.2
___ _ _______ _____
Chronic: 13.5
Max MDL = 10
_ _ _ _ _ _ _ _ _ _ _____
All reported < 10 ug/L - no monitoring required
Lead
NC
3.0976 FW(7Q10s) 79.9593
ug/L
3 0
Note: n < 9
Limited data set
7.500
C.V. (default)
NO DETECTS
Acute: 193.178
___ _ ______ _____
Chronic: 8.357
Max MDL = 5
_ _ _ _ _ _ _ _ _ _ _
All non -detects <5 ug/L and < 1 ug/L- No Monitoring
required
Page 1 of 2
24252 RPA, rpa
9/21/2022

Northeast WWTP
Outfall 001
NC0024252 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators QW = 1.9 MGD
Nickel
Nickel
NC
NC
38.7058 FW(7Q10s) 350.0262
25.0000 WS(7Q10s)
µg/L
µg/L
3 1
Note: n < 9
Limited data set
7.5
C.V. (default)
Acute (FW): 845.6
Chronic(F'W): — 104.4------------------------
No value > Allowable Cw _ _ _
Chronic (WS): 67.4
No value > Allowable Cw
— —
_ _ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Selenium
NC
5 FW(7Q10s) 56
ug/L
3 0
Note: n < 9
Limited data set
15.0
C.V. (default)
NO DETECTS
Acute: 135.3
_ _ _ _ _ _ _ _ _
Chronic: 13.5
Max MDL=10
_ _ _ _ _ _ _ _ _ _ _ _ _ _
All non -detects <10 ug/L, < 5 ug/L and < 1 ug/L- No
Monitoring required
Silver
NC
0.06 FW(7Q10s) 0.3236
ug/L
23 0
7.000
NO DETECTS
Acute: 0.782
___ _ _______ _____
Chronic: 0.162
Max MDL = 10
_ _ _ _ _ _ _ _ _ ___ ___
All non -detects < 10 ug/L, < 5 ug/L and < 1 ug/L
BPJ; continue quarterly monitoring for 1 year, remove
monitoring if all non -detect. Permittee shall report to
lowest PQL.
Zinc
NC
131.7603 FW(7Q10s) 131.2706
ug/L
23 23
296.5
Acute: 317.1
-- Chronic:-----355.5------------------------------
No value > Allowable Cw
No RP , Predicted Max >_ 50% of Allowable Cw -
apply Quarterly Monitoring
Nitrate
NC
10 WS(7Q10s)
mg/L
3 3
Note: n < 9
Limited data set
17.70000
C.V. (default)
Acute: NO WQS
_ _
_ Chroni_ _ c: 26.978
No value > Allowable Cw
No RP , Predict > ed Max 50 % of Allowable Tw _ _
facility to report monthly TKN and NO2 + NO3 to
accompany TN requirement
TDS
NC
500 WS(7Q10s)
mg/L
3 3
Note: n < 9
Limited data set
783.00000
C.V. (default)
Acute: NO WQS
_ _ _ _ _ _ _ _ _ _ _ _ _
Chronic: 1348.89643
No value > Allowable Cw
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
BPJ; Limited dataset calculation skews high;
Maximum reported < 20 % of the allowable
concentration - no monitoring required.
Page 2 of 2
24252 RPA, rpa
9/21/2022

Northeast WWTP
NC0024252
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw (MGD) = 3.0000
1Q10S (cfs) = 4.17
7Q1OS (cfs) = 5.00
7Q1OW (cfs) = 8.00
30Q2 (cfs) = 10.00
Avg. Stream Flow, QA (cfs) = 23.00
Receiving Stream: Lyle Creek HUC 03050101
WWTP/WTP Class: III
IWC% @ 1Q10S = 52.72108844
IWC% @ 7Q1OS = 48.1865285
IWC% @ 7Q1OW = 36.75889328
IWC% @ 30Q2 = 31.74061433
IW%C @ QA = 16.81735986
Stream Class: C
Outfall 001
Qw = 3 MGD
COMBINED HARDNESS (mg/L)
Acute = 26.67 mg/L
Chronic = 26.53 mg/L
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS WATER SUPPLY
Effluent Hard: 0 value > 100 mg/L
Effluent Hard Avg = 28.17 mg/L
PARAMETER
TYPE
NC STANDARDS OR EPA CRITERIA
_1w
a
D
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
Chronic Stanpda d Acute
n # Det. Max Pred Cw Allowable Cw
Arsenic
Arsenic
C
C
150 FW(7Q10s) 340
10 HH/WS(Qavg)
ug/L
ug/L
3 0
Note: n < 9
Limited data set
15.0
C.V. (default)
NO DETECTS
Acute (FW): 644.9
Chronic (FW): 311.3
Max MDL =10___ _ _____
Chronic (IR1): 59.5
Max MDL = 10
_ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Cadmium
NC
0.6169 FW(7Q10s) 3.4279
ug/L
3 0
Note: n < 9
Limited data set
3.000
C.V. (default)
NO DETECTS
Acute: 6.502
Chronic: 1.280
Max MDL = 2
All non -detects <2 ug/L, <1 ug/L and <0.5 ug/L- No
Monitoring required; Permittee shall report to PQL of
at most 1 ug/L.
Total Phenolic Compounds
NC
300 A(30Q2)
ug/L
3 0
Note: n < 9
Limited data set
30.0
C.V. (default)
NO DETECTS
Acute: NO WQS
_ _ _ _ _ _
Chronic: 945.2
Max MDL =20
_ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Chromium III
NC
123.5893 FW(7Q10s) 954.3188
µg/L
0 0
N/A
Acute: 1,810.1
-- _ _ _ -----_ _ ------------------------------
Chronic:256.5
Chromium VI
NC
11 FW(7Q10s) 16
µg'L
0 0
N/A
Acute: 30.3
--•---------------------------
Chromium, Total
NC
µg/L
3 0
Note: n < 9
Limited data set
7.5
C.V. (default)
NO DETECTS
Max reported value = 2.5
Max MDL = 5
a: No monitoring required if all Total Chromium
samples are < 5 pg/L or Pred. max for Total Cr is <
allowable Cw for Cr VI.
Copper
NC
8.2901 FW(7Q10s) 11.1300
ug/L
55 22
6.06
Acute: 21.11
___ _ _______ _____
Chronic: 17.20
No value > Allowable Cw
_ _ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Cyanide
NC
5 FW(7Q10s) 22
10
ug/L
3 0
Note: n < 9
Limited data set
15.0
C.V. (default)
NO DETECTS
Acute: 41.7
___ _ _______ _____
Chronic: 10.4
Max MDL = 10
_ _ _ _ _ _ _ _ _ _ _____
All reported < 10 ug/L - no monitoring required
Lead
NC
3.1446 FW(7Q10s) 81.1876
ug/L
3 0
Note: n < 9
Limited data set
7.500
C.V. (default)
NO DETECTS
Acute: 153.995
___ _ ______ _____
Chronic: 6.526
Max MDL = 5
_ _ _ _ _ _ _ _ _ _ _
All non -detects <5 ug/L and < 1 ug/L- No Monitoring
required
Page 1 of 2
24252 RPA, rpa
9/21/2022

Northeast WWTP
Outfall 001
NC0024252 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 3 MGD
Nickel
Nickel
NC
NC
39.1461 FW(7Q10s) 354.0620
25.0000 WS(7Q10s)
µg/L
µg/L
3 1
n < 9
Limited data set
7.5Note:
C.V. (default)
Acute (FW): 671.6
No value > Allowable Cw _ _ _
Chronic (WS): 51.9
No value > Allowable Cw
_ _ _ _ _ _ _ _ _ _ _ _
No RP, Predicted Max < 50 % of Allowable Cw - No
Monitoring required
Selenium
NC
5 FW(7Q10s) 56
ug/L
3 0
Note: n < 9
Limited data set
15.0
C.V. (default)
NO DETECTS
Acute: 106.2
_ _ _ _ _ _ _ _ _
Chronic: 10.4
Max MDL=10
_ _ _ _ _ _ _ _ _ _ _ _ _ _
All non -detects <10 ug/L, < 5 ug/L and < 1 ug/L- No
Monitoring required
Silver
NC
0.06 FW(7Q10s) 0.3313
ug/L
23 0
7.000
NO DETECTS
Acute: 0.628
___ _ _______ _____
Chronic: 0.125
Max MDL = 10
_ _ _ _ _ _ _ _ _ ___ ___
All non -detects < 10 ug/L, < 5 ug/L and < 1 ug/L
BPJ; continue quarterly monitoring for 1 year, remove
monitoring if all non -detect. Permittee shall report to
lowest PQL.
Zinc
NC
133.2614 FW(7Q10s) 132.7865
ug/L
23 23
296.5
Acute: 251.9
-- Chronic:-----276.6------------------------------
No value > Allowable Cw
RP shown - apply Monthly Monitoring with Limit
Nitrate
NC
10 WS(7Q10s)
111a L
3 3
Note: n < 9
Limited data set
17.70000
C.V. (default)
Acute: NO WQS
_ _ _ _
_ Chroni_ _ c: 20.753
No value > Allowable Cw
No RP-, Predict > ed Max 50 % of Allowable Tw _ _
facility to report monthly TKN and NO2 + NO3 to
accompany TN requirement
TDS
NC
500 WS(7Q10s)
mg/L
3 3
Note: n < 9
Limited data set
783.00000
C.V. (default)
Acute: NO WQS
_ _ _ _ _ _ _ _ _ _ _ _ _
Chronic: 1037.63441
No value > Allowable Cw
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
BPJ; Limited dataset calculation skews high;
Maximum reported < 20 % of the allowable
concentration - no monitoring required.
Page 2 of 2
24252 RPA, rpa
9/21/2022

Permit No. NC0024252
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 April6, 2016, with some exceptions. Therefore, metal limits in draft
permits out to public notice after April6, 2016 must be calculated to protect the new standards - as
approved.
Table 1. NC Dissolved Metals Water Quality Standards/Aquatic Life Protection
Parameter
Acute FW, µg/1
(Dissolved)
Chronic FW, 14/1
(Dissolved)
Acute SW, 14/1
(Dissolved)
Chronic SW, µg/1
(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*{1.1366724ln hardness](0.041838)} • e^{0.9151 [ln hardness]-3.1485}
Cadmium, Acute Trout waters
WER*{1.136672-[ln hardness](0.041838)} • e^{0.9151[ln hardness]-3.6236}
Cadmium, Chronic
WER* { 1.101672-[ln hardness](0.041838)} • e^{0.7998[ln hardness]-4.4451 }
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*{1.462034ln hardness](0.145712)} • e^{1.273[In hardness]-1.460}
Lead, Chronic
WER*{1.46203-[ln hardness](0.145712)} • e^{1.273[In 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. NC0024252
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/WQBELs 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 1Q10 using the formula 1Q10 = 0.843 (s7Q10, 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. NC0024252
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 1Q10 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 1 + { [Kpo] [SS(1
+1 [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 = (s7Q10 + Qw) (Cwqs) — (s7Q10) (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 s7Q10)
s7Q10 = 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 s7Q10 may be incorporated as applicable:
1Q10 = used in the equation to protect aquatic life from acute toxicity
Page 3 of 4

Permit No. NC0024252
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)
[Total as, CaCO3 or (Ca+Mg)]
28.17
Average from March 2018 to June
2022 samples
Average Upstream Hardness (mg/L)
[Total as, CaCO3 or (Ca+Mg)]
25
Default used; average from review
period below 25 mg/L.
7Q10 summer (cfs)
5.0
USGS 1988 Low Flow Report
1 Q 10 (cfs)
4.17
Calculated in RPA
Permitted Flow (MGD)
1.5
NPDES Files
Date: 9/12/2022
Permit Writer: Nick Coco
Page 4 of 4

NH3/TRC WLA Calculations
Facility: Northeast WWTP
PermitNo. NC0024252
Prepared By: Nick Coco
Enter Design Flow (MGD):
Enter s7Q10 (cfs):
Enter w7Q10 (cfs):
1.5
5
8
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/I)
s7Q10 (CFS) 5
DESIGN FLOW (MGD) 1.5
DESIGN FLOW (CFS) 2.325
STREAM STD (UG/L) 17.0
Upstream Bkgd (ug/I) 0
IWC (%) 31.74
Allowable Conc. (ug/I) 54
Cap at 28 ug/L. Consistent with current limit.
Maintain limit.
Fecal Coliform
Monthly Average Limit:
(If DF >331; Monitor)
(If DF<331; Limit)
Dilution Factor (DF)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/I)
s7Q10 (CFS) 5
DESIGN FLOW (MGD) 1.5
DESIGN FLOW (CFS) 2.325
STREAM STD (MG/L) 1.0
Upstream Bkgd (mg/I) 0.22
IWC (%) 31.74
Allowable Conc. (mg/I) 2.7
Less stringent than current limit. Maintain limit.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/I)
w7Q10 (CFS)
200/100mI DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
3.15 Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
8
1.5
2.325
1.8
0.22
22.52
7.2
Less stringent than current limit. Maintain limit.
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, 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)

NH3/TRC WLA Calculations
Facility: Northeast WWTP
PermitNo. NC0024252
Prepared By: Nick Coco
Enter Design Flow (MGD):
Enter s7Q10 (cfs):
Enter w7Q10 (cfs):
1.9
5
8
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/I)
s7Q10 (CFS) 5
DESIGN FLOW (MGD) 1.9
DESIGN FLOW (CFS) 2.945
STREAM STD (UG/L) 17.0
Upstream Bkgd (ug/I) 0
IWC (%) 37.07
Allowable Conc. (ug/I) 46
Cap at 28 ug/L. Consistent with current limit.
Maintain limit.
Fecal Coliform
Monthly Average Limit:
(If DF >331; Monitor)
(If DF<331; Limit)
Dilution Factor (DF)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/I)
s7Q10 (CFS) 5
DESIGN FLOW (MGD) 1.9
DESIGN FLOW (CFS) 2.945
STREAM STD (MG/L) 1.0
Upstream Bkgd (mg/I) 0.22
IWC (%) 37.07
Allowable Conc. (mg/I) 2.3
Less stringent than current limit. Maintain limit.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/I)
w7Q10 (CFS)
200/100mI DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
2.70 Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
8
1.9
2.945
1.8
0.22
26.91
6.1
Less stringent than current limit. Maintain limit.
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, 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)

NH3/TRC WLA Calculations
Facility: Northeast WWTP
PermitNo. NC0024252
Prepared By: Nick Coco
Enter Design Flow (MGD):
Enter s7Q10 (cfs):
Enter w7Q10 (cfs):
3
5
8
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/I)
s7Q10 (CFS) 5
DESIGN FLOW (MGD) 3
DESIGN FLOW (CFS) 4.65
STREAM STD (UG/L) 17.0
Upstream Bkgd (ug/I) 0
IWC (%) 48.19
Allowable Conc. (ug/I) 35
Cap at 28 ug/L. Consistent with current limit.
Maintain limit.
Fecal Coliform
Monthly Average Limit:
(If DF >331; Monitor)
(If DF<331; Limit)
Dilution Factor (DF)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/I)
s7Q10 (CFS) 5
DESIGN FLOW (MGD) 3
DESIGN FLOW (CFS) 4.65
STREAM STD (MG/L) 1.0
Upstream Bkgd (mg/I) 0.22
IWC (%) 48.19
Allowable Conc. (mg/I) 1.8
Consistent with current limit. Maintain limit.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/I)
w7Q10 (CFS)
200/100mI DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
2.08 Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
8
3
4.65
1.8
0.22
36.76
4.5
Less stringent than current limit. Maintain limit.
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, 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)

NC0024252 Northeast WWTP 9/12/2022
BOD monthly removal rate
Month RR (%) Month RR (%)
January-18
February-18
March-18
April-18
May-18
June-18
July-18
August-18
September-18
October-18
November-18
December-18
January-19
February-19
March-19
April-19
May-19
June-19
July-19
August-19
September-19
October-19
November-19
December-19
January-20
February-20
March-20
April-20
May-20
June-20
98.99
96.97
97.81
98.01
97.22
98.42
99.07
99.05
98.53
99.32
98.91
99.04
99.20
99.14
99.02
99.26
99.35
99.20
98.84
98.84
97.64
99.03
99.24
98.38
99.11
98.94
98.94
98.92
97.58
98.45
July-20
August-20
September-20
October-20
November-20
December-20
January-21
February-21
March-21
April-21
May-21
June-21
July-21
August-21
September-21
October-21
November-21
December-21
January-22
February-22
March-22
April-22
May-22
June-22
July-22
August-22
September-22
October-22
November-22
December-22
Overall BOD removal rate
99.21
99.23
99.17
99.02
98.99
98.99
99.07
98.45
98.62
99.04
99.14
99.23
99.31
99.25
99.24
99.35
99.08
98.84
99.00
98.92
97.96
98.88
97.60
96.68
98.75
98.75
TSS monthly removal rate
Month RR (%) Month RR (%)
January-18
February-18
March-18
April-18
May-18
June-18
July-18
August-18
September-18
October-18
November-18
December-18
January-19
February-19
March-19
April-19
May-19
June-19
July-19
August-19
September-19
October-19
November-19
December-19
January-20
February-20
March-20
April-20
May-20
June-20
98.63
97.15
98.24
97.11
96.62
97.92
98.37
98.47
96.92
98.08
97.53
97.06
97.96
98.03
98.16
98.29
98.07
98.54
97.93
98.01
97.83
98.00
98.30
96.09
97.17
97.23
97.19
96.80
95.47
98.16
July-20
August-20
September-20
October-20
November-20
December-20
January-21
February-21
March-21
April-21
May-21
June-21
July-21
August-21
September-21
October-21
November-21
December-21
January-22
February-22
March-22
April-22
May-22
June-22
July-22
August-22
September-22
October-22
November-22
December-22
Overall TSS removal rate
98.23
98.03
98.02
96.95
98.02
97.47
97.35
97.88
97.41
97.88
97.63
98.60
98.41
96.95
98.30
98.41
98.56
98.31
98.00
97.91
97.88
98.36
98.19
97.40
97.48
97.77

9/15/22 WQS = 12 ng/L
Facility Name Northeast WWTP/NC0024252
/Permit No. :
MERCURY WQBEL/TBEL EVALUATION V:2013-6
Total Mercury 1631E PQL = 0.5 ng/L 7Q10s =
Date Modifier Data Entry Value Permitted Flow =
9/13/18
6/22/21
11/16/17
<
0.5
0.617
0.5
No Limit Required
No MMP Required
0.5
0.617
0.5
5.000
3.000
cfs
WQBEL = 24.90 ng/L
47 ng/L
0.5 ng/L - Annual Average for 2018
0.6 ng/L - Annual Average for 2021
0.5 ng/L - Annual Average for 2017

Northeast WWTP/NC0024252
Mercury Data Statistics (Method 1631E)
2018
2021
2017
# of Samples
1
1
1
Annual Average, ng/L
0.5
0.6
0.5
Maximum Value, ng/L
0.50
0.62
0.50
TBEL, ng/L
47
WQBEL, ng/L
24.9

MONITORING REPORT(MR) VIOLATIONS for:
Report Date: 09/09/22
Page 1 of 3
Permit: NC0024252 MRs Betweel 9 - 2017 and 9 - 2022
Facility Name: % Param Name%
Major Minor: %
Region:
County: %
Violation Category:Limit Violation
Subbasin:%
Program Category:
Violation Action: %
PERMIT: NC0024252
FACILITY: City of Conover - Northeast WWTP
COUNTY: Catawba
REGION: Mooresville
Limit Violation
MONITORING OUTFACE
REPORT
LOCATION
PARAMETER
VIOLATION
UNIT OF
DATE FREQUENCY MEASURE
LIMIT
CALCULATED
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
09-2017 001
09-2017 001
05-2020 001
06-2022 001
06-2022 001
09-2017 001
02-2018 001
09-2018 001
07-2019 001
08-2019 001
02-2020 001
03-2020 001
09-2020 001
10-2020 001
10-2020 001
02-2021 001
Effluent BOD, 5-Day (20 Deg. C) - 09/30/17 3 X week
Concentration
Effluent BOD, 5-Day (20 Deg. C) - 09/30/17 3 X week
Concentration
Effluent BOD, 5-Day (20 Deg. C) - 05/23/20 3 X week
Concentration
Effluent BOD, 5-Day (20 Deg. C) - 06/11/22 3 X week
Concentration
Effluent BOD, 5-Day (20 Deg. C) - 06/30/22 3 X week
Concentration
Effluent Chlorine, Total Residual 09/25/17 3 X week
Effluent Chlorine, Total Residual 02/27/18 3 X week
Effluent Chlorine, Total Residual 09/11/18 3 X week
Effluent Chlorine, Total Residual 07/15/19 3 X week
Effluent Chlorine, Total Residual 08/19/19 3 X week
Effluent Chlorine, Total Residual 02/11/20 3 X week
Effluent Chlorine, Total Residual 03/23/20 3 X week
Effluent Chlorine, Total Residual 09/14/20 3 X week
Effluent Chlorine, Total Residual 10/14/20 3 X week
Effluent Chlorine, Total Residual 10/26/20 3 X week
Effluent Chlorine, Total Residual 02/24/21 3 X week
mg/I
mg/I
mg/I
mg/I
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
12 12.45 3.7 Weekly Average
Exceeded
8 10.33 29.1 Monthly Average
Exceeded
12 15.13 26.0 Weekly Average
Exceeded
12 12.97 8.1 Weekly Average
Exceeded
8 9.31 16.3 Monthly Average
Exceeded
28 29 3.6 Daily Maximum
Exceeded
28 31 10.7 Daily Maximum
Exceeded
28 44 57.1 Daily Maximum
Exceeded
28 31 10.7 Daily Maximum
Exceeded
28 42 50 Daily Maximum
Exceeded
28 47 67.9 Daily Maximum
Exceeded
28 48 71.4 Daily Maximum
Exceeded
28 45 60.7 Daily Maximum
Exceeded
28 47 67.9 Daily Maximum
Exceeded
28 39 39.3 Daily Maximum
Exceeded
28 46 64.3 Daily Maximum
Exceeded
Proceed to
Enforcement Case
Proceed to
Enforcement Case
Proceed to
Enforcement Case
Proceed to
Enforcement Case
Proceed to
Enforcement Case
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ
No Action, BPJ

MONITORING REPORT(MR) VIOLATIONS for:
Report Date: 09/09/22 Page 2 of 3
Permit: NC0024252 MRs Betweel 9 - 2017 and 9 - 2022
Facility Name: % Param Name%
Major Minor: %
Region: % Violation Category:Limit Violation Program Category: %
County: % Subbasin:% Violation Action: %
PERMIT: NC0024252
FACILITY: City of Conover - Northeast WWTP
COUNTY: Catawba REGION: Mooresville
Limit Violation
MONITORING UNIT OF
OUTFALL LOCATION PARAMETER VIOLATION FREQUENCY
REPORT DATE MEASURE
LIMIT
CALCULATED
VALUE Over
VIOLATION TYPE VIOLATION ACTION
05-2021 001 Effluent Chlorine, Total Residual 05/04/21 3 X week ug/I 28 42 50 Daily Maximum No Action, BPJ
Exceeded
08-2021 001 Effluent Chlorine, Total Residual 08/16/21 3 X week ug/I 28 34 21.4 Daily Maximum No Action, BPJ
Exceeded
08-2021 001 Effluent Chlorine, Total Residual 08/17/21 3 X week ug/I 28 33 17.9 Daily Maximum No Action, BPJ
Exceeded
08-2021 001 Effluent Chlorine, Total Residual 08/18/21 3 X week ug/I 28 30 7.1 Daily Maximum No Action, BPJ
Exceeded
08-2021 001 Effluent Chlorine, Total Residual 08/23/21 3 X week ug/I 28 46 64.3 Daily Maximum No Action, BPJ
Exceeded
08-2021 001 Effluent Chlorine, Total Residual 08/24/21 3 X week ug/I 28 36 28.6 Daily Maximum No Action, BPJ
Exceeded
08-2021 001 Effluent Chlorine, Total Residual 08/25/21 3 X week ug/I 28 43 53.6 Daily Maximum No Action, BPJ
Exceeded
12-2021 001 Effluent Chlorine, Total Residual 12/07/21 3 X week ug/I 28 37 32.1 Daily Maximum No Action, BPJ
Exceeded
12-2021 001 Effluent Chlorine, Total Residual 12/13/21 3 X week ug/I 28 39 39.3 Daily Maximum No Action, BPJ
Exceeded
12-2021 001 Effluent Chlorine, Total Residual 12/20/21 3 X week ug/I 28 36 28.6 Daily Maximum No Action, BPJ
Exceeded
03-2022 001 Effluent Chlorine, Total Residual 03/31/22 3 X week ug/I 28 34 21.4 Daily Maximum No Action, BPJ
Exceeded
04-2022 001 Effluent Chlorine, Total Residual 04/19/22 3 X week ug/I 28 32 14.3 Daily Maximum No Action, BPJ
Exceeded
07-2022 001 Effluent Chlorine, Total Residual 07/06/22 3 X week ug/I 28 60 114.3 Daily Maximum Proceed to NOV
Exceeded
09-2017 001 Effluent Nitrogen, Ammonia Total (as 09/30/17 3 X week mg/I 2 4.13 106.7 Monthly Average Proceed to
N) - Concentration Exceeded Enforcement Case
09-2019 001 Effluent Nitrogen, Ammonia Total (as 09/30/19 3 X week mg/I 2 2.65 32.3 Monthly Average Proceed to NOV
N) - Concentration Exceeded
04-2022 001 Effluent Nitrogen, Ammonia Total (as 04/30/22 3 X week mg/I 2 2.04 1.9 Monthly Average No Action, BIMS
N) - Concentration Exceeded Calculation Error

MONITORING REPORT(MR) VIOLATIONS for:
Report Date: 09/09/22 Page 3 of 3
Permit: NC0024252 MRs Betweel 9 - 2017 and 9 - 2022
Facility Name: % Param Name%
Major Minor: %
Region: % Violation Category:Limit Violation Program Category: %
County: % Subbasin:% Violation Action: %
PERMIT: NC0024252
FACILITY: City of Conover - Northeast WWTP
COUNTY: Catawba REGION: Mooresville
Limit Violation
MONITORING UNIT OF
OUTFALL LOCATION PARAMETER VIOLATION FREQUENCY
REPORT DATE MEASURE
LIMIT
CALCULATED
VALUE Over
VIOLATION TYPE VIOLATION ACTION
06-2022 001
10-2021 001
Effluent Nitrogen, Ammonia Total (as 06/30/22 3 X week mg/I 2 2.26 13.3 Monthly Average Proceed to
N) - Concentration Exceeded Enforcement Case
Effluent pH 10/05/21 3 X week su 6 5.9 1.7 Daily Minimum Not Proceed to NOD
Reached

Whole Effluent Toxicity Testing and Self Monitoring Summary
Columbia WTP NC0007510/001 County: Tyrrell Region: WARO Basin: PAS53 Jan Apr Jul Oct
Mysd24PF Begin: 4/1/2018 Ac Monit 90% NonComp: 7010: Tidal PF: 0.02 IWC: NA Freq: Q
SOC JOC:
J F M A M J J A 5 0 N D
2018 Pass - - Pass - - Pass - - Fail -
2019 Fail - - Pass - - Pass - - Fail -
2020 Pass - - Pass - - Fail - - Fail -
2021 Pass - - Pass - - Pass - - Pass -
2022 Pass - - Pass - - Pass - - -
Columbus WWTP NC0021369/001 County: Polk Region: ARO
Ceri7dPF Begin: 3/1/2014 chr lim: 37% NonComp: Single 7Q10: 2.1
Basin: BRD02 Mar Jun Sep Dec
PF: 0.8 IWC: 37.08 Freq: Q
SOC_JOC:
J F M A M J J A S 0 N D
2018 - - Pass - - Pass - - Pass - - Pass
2019 - - Pass - - Pass - - Pass - - Pass
2020 - - Pass - - Pass - - Pass - - Pass
2021 - - Pass - - Pass - - Pass - - Pass
2022 - - Pass - - Pass - - - -
Conover NE WWTP NC0024252/001 County: Catawba Region: MRO Basin: CTB32 Mar Jun Sep Dec
Ceri7dPF Begin: 9/1/2005 chr lim: 32% NonComp: Single 7Q10: 5.0 PF: 1.5 IWC: 32.0 Freq: Q
SOC JOC:
2018
2019
2020
2021
2022
J F
>100 (P)
M A M J J A 5 0 N D
Pass - - Pass - - Pass - - Pass
Pass - - Pass - - Pass - - Pass
Pass Pass - - Pass - - Pass
Pass >100(P) >100 (P) >100 (P) Pass - - Pass - - Pass
Pass Pass - - - -
Conover SE WWTP NC0024279/001 County: Catawba Region: MRO Basin: CTB32 Jan Apr Jul Oct
Ceri7dPF Begin: 9/1/2012 chr lim: 48% NonComp: Single 7Q10: 0.5 PF: 0.30 IWC: 48 Freq: Q
SOC_JOC:
J F M A M J J A 5 0 N D
2018 H - - H - - H - - H -
2019 H - - H - - - - - - -
2020 - - - - - - H - - H -
Contentnea MSD WWTP NC0032077/001 County: Pitt Region: WARO Basin: NEU07 Jan Apr Jul Oct
Ceri7dPF Begin: 6/1/2021 chr lim 3.5MGD @13 NonComp: Single 7Q10: 0.0 PF: 3.5 IWC: 100 Freq: Q
SOC JOC:
J F M A M J J A 5 0 N D
2018 Pass - - Pass - - Pass - - Pass >52(P) -
2019 Pass >52(P) - - Pass >52(P) >52(P) - - Pass - - Pass -
2020 Pass - - Pass - - Pass - - Pass -
2021 Pass - - Pass - - Pass - - Pass -
2022 Pass - - Pass - - Pass - - -
Legend: P= Fathead minnow (Pimphales promelas), H=No Flow (facility is active), s = Split test between Certified Labs
Page 27 of 117

United States Environmental Protection Agency
E PA Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection
1 IN 2 I5 �-I 3 I NC0024252 111 121 20/12/16 117
Type
18 [ i
i i I i i
Inspector Fac Type
19 i G I 201
211111 1 1i i l l s ii i i i I I i i i l i l i i l i i i
i ii
i i i i i 166
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
6712.0 I 70I4 I 71 IN I 72 I N I 73I I 174
L� 1 751
180
1 11111
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Northeast WWTP
3680 Hillview Dr
Conover NC 28613
Entry Time/Date
09:OOAM 20/12/16
Permit Effective Date
16/12/01
Exit Time/Date
12:25PM 20/12/16
Permit Expiration Date
21/11/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Brian Robert Bradshaw/ORC/828-464-4808/
Eric Williams/Operator/828-465-2279 /
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Donald E Duncan,PO Box 549 Conover NC 286130549/City Manager/828-464-4808/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement Operations & Maintenar Records/Reports
Self -Monitoring Progran Sludge Handling Dispos Facility Site Review Effluent/Receiving Wate
Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Wes Bell DWR/MRO WQ/704-663-1699 Ext.2192/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
Andrew Pitner DWR/MRO WQ/704-663-1699 Ext.2180/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page# 1

NPDES yr/mo/day
31 NC0024252 111 121 20/12/16
117
Inspection Type
18 [j
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page# 2

Permit: NC0024252
Inspection Date: 12/16/2020
Owner - Facility: Northeast VVVVTP
Inspection Type: Compliance Evaluation
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ • ❑
application?
Is the facility as described in the permit? • ❑ ❑ ❑
# Are there any special conditions for the permit? ❑ ❑ • ❑
Is access to the plant site restricted to the general public? • ❑ ❑ ❑
Is the inspector granted access to all areas for inspection? • ❑ ❑ ❑
Comment: The City implements a Division -approved Industrial Pretreatment Program.
The last compliance evaluation inspection at this facility was performed by DWR staff
on 3/13/2020.
Record Keeping
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain -of -custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users and DWQ?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified
operator on each shift?
Is the ORC visitation log available and current?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility
classification?
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year's Annual Report on file for review?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
•
•
•
•
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ • ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Page# 3

Permit: NC0024252
Inspection Date: 12/16/2020
Owner - Facility: Northeast VVVVTP
Inspection Type: Compliance Evaluation
Record Keeping
Comment:
Yes No NA NE
The records reviewed during the inspection were organized and well maintained.
Discharge Monitoring Reports (eDMRs) were reviewed for the period September 2019
through October 2020. A weekly average effluent BOD violation was reported in May
2020. The Division has previously addressed these violations through the issuance of
a Notice of Violation (NOV).
The ORC will modify the internal chain of custody form to include the time effluent
samples are placed in the refrigerator to verify proper preservation within 15-minutes
of sample collection (Reference: 40 CFR 136.3 Table II).
The permittee and ORC must ensure the wastewater treatment facility is visited [by
designated ORC and/or Backup ORC(s)] five days per week excluding legal holidays.
Laboratory
Are field parameters performed by certified personnel or laboratory?
Are all other parameters(excluding field parameters) performed by a certified lab?
# Is the facility using a contract lab?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
❑ ❑ • ❑
❑ ❑ • ❑
Comment: On -site field analyses (dissolved oxygen, pH, total residual chlorine, temperature) are
performed under the City's field laboratory certification #5904. Water Tech Labs, Inc.
(all permit parameters except field and metals) and Pace Analytical (metals and toxicity)
have also been contracted to provide analytical support.
The ORC and staff must ensure to document the annual verification between the
dissolved oxygen meter's temperature measuring device and NIST traceable
thermometer.
Influent Sampling
# Is composite sampling flow proportional?
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Is sampling performed according to the permit?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
❑ ❑ • ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Comment: The subject permit requires influent BOD and TSS composite samples. The sampler
aliquot verifications are performed quarterly; however, this Office recommends
monthly.
Effluent Sampling
Is composite sampling flow proportional?
Yes No NA NE
❑ ❑ • ❑
Page# 4

Permit: NC0024252
Inspection Date: 12/16/2020
Owner - Facility: Northeast VVVVTP
Inspection Type: Compliance Evaluation
Effluent Sampling
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
representative)?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ • ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Comment: The subject permit requires composite and grab effluent samples. The sampler aliquot
verifications are performed quarterly; however, this Office recommends monthly.
Upstream / Downstream Sampling
Is the facility sampling performed as required by the permit (frequency, sampling type,
and sampling location)?
Comment:
Operations & Maintenance
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH, DO, Sludge Judge, and other that are applicable?
Yes No NA NE
• ❑ ❑ ❑
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
Comment: The wastewater treatment facility appeared to be properly operated and well
maintained. The ORC and staff incorporate a comprehensive process control program
with all measurements being documented and maintained on -site.
The facility is equipped with a dialer type alarm notification system for selected alarm
conditions.
Bar Screens
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Is disposal of screening in compliance?
Is the unit in good condition?
Comment:
Grit Removal
Type of grit removal
Yes No NA NE
•
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Yes No NA NE
Page# 5

Permit: NC0024252
Inspection Date: 12/16/2020
Owner - Facility: Northeast VVVVTP
Inspection Type: Compliance Evaluation
Grit Removal
a.Manual
b.Mechanical
Is the grit free of excessive organic matter?
Is the grit free of excessive odor?
# Is disposal of grit in compliance?
Yes No NA NE
•
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Comment: Screenings and grit are disposed at the Catawba County Landfill by Republic Services.
Pump Station - Influent
Is the pump wet well free of bypass lines or structures?
Is the wet well free of excessive grease?
Are all pumps present?
Are all pumps operable?
Are float controls operable?
Is SCADA telemetry available and operational?
Is audible and visual alarm available and operational?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Comment: The audible/visual alarms and the dialer type alarm notification system all operated
properly during the on -site test.
Sequencing Batch Reactors Yes No NA NE
Type of operation: Quadraplex
Is the reactor effluent free of solids? ❑ ❑ • ❑
Does minimum fill time correspond to the peak hour flow rate of the facility? ❑ ❑ • ❑
Is aeration and mixing cycled on and off during fill? ❑ ❑ • ❑
The operator understands and can explain the process? • ❑ ❑ ❑
Comment: All four SBR trains are continuous fill and were operational and in service. The SBR
decant/effluent was free of excessive solids.
Aeration Basins
Mode of operation
Type of aeration system
Is the basin free of dead spots?
Are surface aerators and mixers operational?
Are the diffusers operational?
Is the foam the proper color for the treatment process?
Yes No NA NE
Diffused
• ❑ ❑ ❑
• ❑ • ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Page# 6

Permit: NC0024252
Inspection Date: 12/16/2020
Owner - Facility: Northeast \NTP
Inspection Type: Compliance Evaluation
Aeration Basins
Does the foam cover less than 25% of the basin's surface?
Is the DO level acceptable?
Is the DO level acceptable?(1.0 to 3.0 mg/I)
Comment:
Filtration (High Rate Tertiary)
Type of operation:
Is the filter media present?
Is the filter surface free of clogging?
Is the filter free of growth?
Is the air scour operational?
Is the scouring acceptable?
Is the clear well free of excessive solids and filter media?
Comment: All five tertiary filters were operational and in service.
Disinfection -Liquid
Is there adequate reserve supply of disinfectant?
(Sodium Hypochlorite) Is pump feed system operational?
Is bulk storage tank containment area adequate? (free of leaks/open drains)
Is the level of chlorine residual acceptable?
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de -chlorination?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Yes No NA NE
Down flow
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Comment: The ORC increased the sodium hypochlorite feed rate to increase the residual chlorine
levels in the contact chamber during the inspection.
De -chlorination Yes No NA NE
Type of system ? Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)? • ❑ ❑ ❑
Is storage appropriate for cylinders? ❑ ❑ • ❑
# Is de -chlorination substance stored away from chlorine containers? • ❑ ❑ ❑
Comment:
Are the tablets the proper size and type?
Are tablet de -chlorinators operational?
❑ ❑ ■ ❑
❑ ❑ • ❑
Page# 7

Permit: NC0024252
Inspection Date: 12/16/2020
Owner - Facility: Northeast VVVVTP
Inspection Type: Compliance Evaluation
De -chlorination
Number of tubes in use?
Comment:
Effluent Pipe
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Yes No NA NE
Yes No NA NE
• ❑ ❑ ❑
❑ ❑ ❑ •
❑ ❑ • ❑
Comment: The effluent appeared clear with no floatable solids or foam. The receiving stream was
significantly turbid due to recent rainfall events; therefore, no instream evaluation was
performed.
Solids Handling Equipment
Is the equipment operational?
Is the chemical feed equipment operational?
Is storage adequate?
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
Is the site free of sludge buildup on belts and/or rollers of filter press?
Is the site free of excessive moisture in belt filter press sludge cake?
The facility has an approved sludge management plan?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
❑ ❑ ❑ •
❑ ❑ ❑ •
❑ ❑ ❑ •
• ❑ ❑ ❑
Comment: The facility is equipped with a gravity belt thickener (GBT) and WAS and thickened
sludge storage tanks. The gravity belt thickener was operational; however, not in
service. The GBT is operated two days per week.
City staff transports thickened sludge (2-3 times per week) to the Regional Compost
facility (located in Catawba County) for further treatment/disposal.
City staff also transports sludge (4 loads per week) to the Regional Compost facility
from a dedicated thickener located at the City of Newton's WWTP.
Standby Power
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Is there an emergency agreement with a fuel vendor for extended run on back-up
power?
Is the generator fuel level monitored?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
❑ ❑ ❑ •
❑ • ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Page# 8

Permit: NC0024252
Inspection Date: 12/16/2020
Owner - Facility: Northeast \NTP
Inspection Type: Compliance Evaluation
Standby Power Yes No NA NE
Comment: The backup generator is tested weekly and placed under load monthly. A contracted
company (Rob Roy) services the generator annually. The generator will not power the
GBT and filter pumps.
Page# 9

iiiiii
RESEARCh & ANALyirCAL
NOW 1.59
LA1bORATORiE !NC.
Analytical/Process Consultations o r
-oils moo
Chemical Aatrtlysls,for Selected Parameters and Water Sample Identified as Conover-PPA
(A Water Teelr .Labs, Inc. Protect, collected 10 November 1O17)
1. Volatile Organics Quill' timann Carlo vcr"PPA 11, Semi-vnlntilc Organics Quantitntion Conavcr-Pi'.1
EPA Method 624 Limit Method 625 Limit
Pillatnicler (me/1.,) 10te/1A Ps en ni Orel' initr/L) r(0,)
Methylene Chloride 0.010 SQL 4-Chloro.3.,rnethyipheual 0.010 SQL
1'richlnra0unron1elhanc 0.1110 SQL 2-Chinos/them! 0,010 13Qi..
1,1•Dichloroetlieno 0.010 SQL S.4•Diclilnroplionel 0.010 13Q1.
1,€-Dichlaroethnne 0,010 SQL 2;I•Dinielhylphcnol 0.010 SQL
Chloroform 0.010 SQL 2,44)initrophenol 0.050 SQL
Carbon Tetrachloride 0.0(0 SQL 2-Methy1-4,6-diniirophenol 0.050 SQL
12 Diahlompmpnne 0.010 SQt. 2-1411rophenal 0.010 SQL
Trichloraethorie 0,010 SQL 444itroplicnol 0.050 13QL
nihroirechlarnmethane 0.010 SQL Pcnlaehlorapheaul 0.050 SQL
1,1,2-Trichloroethane 0.010 SQL Phenol 0.010 SQL
Tetraehlamelhene 0.010 SQL 2,4,0-Triehlarophenol 0,010 SQL
Chlarohenzene 0.010 13Q1. Acennpinhene 0.010 SQL
Trnns-I,2.Dlchlorocthcne 0.010 SQL Acenaphihylcne 0.010 SQL
1.24plchlaroedlane 0.010 SQL. Andiraeone 0.010 SQL
1,1,1-Triohloroethaao 0.010 SQL Senzidine 0,050 SQL
Srnrnndichlornmethane 0010 SQL Benza(n)mnhree= 0.010 SQL
Cis.1,3-Dlchleraprapenc 0,010 SQL Senza(n)pyrene .0.010 SQL
Benzene 0.010 SQL 13enzo(b)fluoranihene 0.010 SQL.
Tows• 1,3-Diahlaropropene 0.010 SQL [3enzo(ghilperylcnc 0.010 SQL
Srau oronn 0.010 SQL i3errjn(k)1lnoranlhene 0,010 SQL
1,1,2,2 Tel/141°raclhaue 0.010 SQL Scnzyl butyl phthplme 0.010 SQL
Toluene 0.010 SQL tlis(2•chluroe3hoxy)iiellrane 0.010 SQL
Silty! Benzene 0,010 SQL Sis(2. hloroeihyl)ether 0.010 SQL
Chloromc0inna 0.010 SQI, Sis(2-ahloroisopropyl)ehai 0.010 SQL
ftontomelhrne 0_010 SQL 131s(2-ethyl-hexyi)phthalate 0.010 SQL
Vinyl Chloride 0.010 SQ1, 443romophenyl phenyl other 0.010 SQL
Cltlonriethanc 0.010 SQL 2•011oronaplrthalene 0.010 SQL
Trani Xylenes 0.010 SQL 4-Clilorophenyl phenyl ether 0.010 SQL
Acrolcin 0.100 SQL Chrysene 0.010 SQL
Aeryivniidle 0.100 SQL D1benzo(n,h)anthraceno 0.010 SQL
2-ChInmetliyl vinyl ether 0,010 SQL 1,2-I1iehlorobenzene 0.010 SQL
1,3-I)islilorobenzcnc 0.010 SQL
Dilution factor 1 1,4-Dieiilorairenrene 0.010 SQL
3,1Diehlorobenzidine 0.020 SQL
Sninpie Nttnther 43104-01 17i-N-1Bityl philinluic 0.010 SQL
Sanipie Date I i116/17 2,4-DlnOro€olncne 0.010 SQL
SnnlpteTim c(hrs) 0810 2,6-I}initrntelnene 0.010 SQL
Di•N•pctyl phthnhnc 0.010 SQL
hluoranibenc 0.010 SQL
tlexachlorohenzene 0010 SQL
tlexachloiobutadictia 0,010 SQL
lies€tchlarocyclapenlnrl lent 0.010 SQL
iiexncltioroethnrrc 0,010 SQL
ladeno(1,2,3•cd) py ene 0.010 SQL
Itopharono 0,010 SQL
Naphthalene 0.010 SQL
Nitrobenzene 0.010 SQl,.
N.Nitrnsodlinethylamine 0.010 SQL
N-nilrnsudi•n.propylamine 0.010 SQL
14-lriitrosodipheitylnmina 0.010 SQL
Phenan#hrene 0,010 SQL
l yrcne 0 010 SQL
1,2,4= I'rieltlorobenzeue 0,010 SQL
Diethyl phthalate 0.010 SQL
Dimetltyl phtl€alntc 0.010 SQL
morose 0.oi0 SQL
12.-diphenylhydrazine 0,050 SQL
17linlion factor 1
Sample Nuniber 43104.01
,Sn ni pie !)ate 11 / 16/ 17
SiiInpieTim c (Itrs) 0830
13QI., = Below QuWrtilalionLinn ti tng/Ls mill loans Der Liter " parts Der mill ion (ppm_

RESEARCEI ANAIyTiCAI
LAbORtTORNES, Dice
For: Water Tech Labs, Inca
P.O. Box 1056
Granite Falls, NC 28630
Attn: Joe Gregg
Report of Analysis
1216/2017
Sfc:1%.1k 0y t141:1
is. cc Pi NC
t NC ii37701
stoe/
•+r4f Air $�"`
Client Sample ID: Conover PPA
Site: Water Tech Labs
Lab Sample ID: 43104.01
Collection Date: 1111612017 8:30
Parameter Method Result units Reg Limit Analyst Analysis Date/Time
Antimony, Total EPA 200.8 0.001 mg/L 0.001 SK 11/2112017
Arsenic. Total EPA 200.8 <0,001 mg/L 0,001 SK 11/21/2017
Berylliurn,Total EPA 200.8 <0.001 mg/L0.001 SK 11 /21/2017
Cadmium, Total EPA 200.8 <0.0005 rng/L 0,0005 8K 11/21/2017
Chromium, Total EPA 200.8 <0.001 mg/L 0.001 SK 11/21/2017
Copper, Total EPA 200.8 0,002 mg/L 0.001 SK 11/21/2017
Cyanide SM 4500 CN E-1999 <0,005 mg/L 0.005 AW 11/21/2017
Lead, Total EPA 200.8 <0.001 mg/L 0.001 SK 11/21/2017
Nickel, Total EPA 200,8 0.001 mg/L 0.001 SK 11121/2017
Phenols EPA 420.1 <0.005 mg/L 0.005 OW 11/20/2017
Selenium. Total EPA 200.8 <0.001 mg/L 0.001 SK 11/21/2017
Sliver, Total EPA 200.8 <0.001 mg/L 0.001 SK 11/21/2017
Thallium, Total EPA 200.8 <0.001 mg/L 0,001 SK 11/2112017
Zhnc, Total EPA 2018 0.102 mg/L 0.001 SK 11/21/2017
NA not analyzed
P.O. Box473 106 Short Street 'KernersvElle, North Carolina 27284 Tel;; 3364e6.2841 Fax: [phone] ww',randalabs.com Page)
raI coa k asiC vid

Annual Monitoring and Pollutant Scan
Permit No.
Outfall
Month
Year
Facility Name City of Conover
Date of sampling 9-13-2018
Analytical Laboratory R&A Labs, Water Tech Labs, GEL, & City of Conover
ORC Michael Fox
Phone [phone]
Parameter; ._
Parameter,:
Code. ..;
Sample
Type
Analytical
Method
Quantitation
Level.
Sample
Result
Units of
Measurement
Ammonia (as N)
Chlorine (total residual, TRC)
Dissolved Oxygen
Nitrite plus Nitrate Total (as N)
Total Kjeldahl Nitrogen
Oil and Grease
Total Phosphorus
Total Dissolved Solids
Hardness
C0610
50060
00300
00630
00625
00556
Composite
Grab
Grab
Composite
ASTMD 1426
08A
SM4500CLG
2011
SM45000G2
011
SM4500NO3
E2011
Composite
Grab
SM4500NOR
GB2011
EPA1664B
0.2
17
0.34
mg/ L
<17
0.1
0.1
ug/ 1
6.7
0.34
mg/ L
mg/ L
0.14
5
3.36
<5.6
mg/ L
mg/ L
C0665
70295
00900
Composite
Composite
Composite
-SM4500PE2
011
SM2540C20
11
SM2340C20
11
0.16
3.2
mg/ L
5
1
261
37.8
mg/ L
g/ L
Metals )total recoverable), "cyanide and total phenols
Antimony
Arsenic
Beryllium
Cadmium
01097 Composite
01002 Composite
01012 Composite
01027
Chromium
Copper
01034
01042
Composite
Composite
Composite
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
EPA 200.7
0.005
0.005
0.001
0.002
0.005
0.005
<0.005
<0.005
mg/ L
mg/ L
<0.001
mg/ L
<0.002
mg/ L
<0.005
<0.005
mg/ L
mg/ L
Lead
Mercury (Method 1631E)
01051
Composite EPA 200.7
COMER
Composite
0.005
1631E
0.5
<0.005
<0.5
mg/ L
ng/ L
Nickel
01067
Composite EPA 200.7
0.005
<0.005
mg/ L
Selenium
Silver
01147
Composite
01077
EPA 200.7
0.005
<0.005
Composite
EPA 200.7
0.005
<0.005
Thallium
Zinc
Cyanide
01059
01092
Composite EPA 200.7
0.005
<0.005
mg/ L
mg/ L
mg/ L
Composite
00720
Grab
EPA 200.7
SM4500CN
E1999
0.01
0.163
0.005
<0.005
mg/ L
mg/ L
Total phenolic compounds
Volatile organic compounds
Acroleirt
Acrylonitrile
32730
Grab
EPA 420.1
0.005
<0.005
mg/ L
34210
34215
Grab
Grab
Benzene
34030
Grab
EPA 624
EPA 624
EPA 624
0.1
0.1
<0.1
<0.1
mg/ L
mg/ L
0.01
<0.01
mg/ L
Bromoform
Carbon Tetrachloride
Chlorobenzene
32104
32102
Grab
EPA 624
0.01
<0.01
mg/ L
34301
Grab
Grab
EPA 624
0.01
<0.01
mg/ L
EPA 624
0.01
<0.01
Chlorodibromomethane
34306
Grab
EPA 624
0.01
<0.01
mg/ L
mg/ L
Form - DMR- PPA-1
Page 1

Permit No.
Outfall
Parameter
Chloroethane
2-chloroethyl vinyl ether
Chloroform
Dichlorobromomethane
1,1-dichloroethane
Annual Monitoring and Pollutant Scan
Parameter Sample;
Code Type.
85811 Grab
34576 Grab
32106 Grab
Analytical', :Quantitation'
Method Level
EPA 624
EPA 624
0.01
0.01
Month
Year
Sample;
Result.
Units of
Measurement
<0.01
<0.01
mg/ L
mg/ L
EPA 624
0.01
<0.01
mg/ L
32101 Grab
EPA 624
0.01
34496 Grab
EPA 624
0.01
<0.0
<0.0
mg/ L
mg/ L
1,2-dichloroethane
32103 Grab
Trans-1,2-dichloroethylene 34546 Grab
1,1-dichloroethylene 34501 Grab
1,2-dichloropropane
1,3-dichloropropylene
Ethylbenzene
Methyl Bromide
Methyl Chloride
Methylene Chloride
34541
EPA 624
EPA 624
EPA 624
0.01
0.01
0.01
Grab
77163 Grab
EPA 624
EPA 624
0.01
0.01
<0.01
mg/ L
<0.01
<0.01
mg/
mg/ L
<0.01
mg/ L
<0.01
mg/ L
34371 Grab
34413
34418
34423
EPA 624
Grab
Grab
Grab
EPA 624
EPA 624
0.01
0.01
0.01
EPA 624
0.01
<0.01
<0.01
mg/ L
mg/ L
<0.01
mg/ L
<0.01
mg/ L
1,1,2,2-tetrachloroethane
81549
Grab
EPA 624
0.01
<0.01
mg/ L
Tetrachloroethylene
Toluene
1,1,1-trichloroethane
34475 Grab
34010 Grab
34506 Grab
1,1,2-trichloroethane 34511 Grab
Trichloroethylene 39180 Grab
Vinyl Chloride
39175
EPA 624
EPA 624
EPA 624
EPA 624
Grab
EPA 624
EPA 624
0.01
0.01
0.01
0.01
0.01
0.01
<0.01
<0.01
mg/ L
mg/ L
<0.01
mg/ L
<0.01
mg/ L
<0.01
<0.01
mg/ L
mg/ L
Acid extractable compounds
P-chloro-m-creso
2-chlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
34452
34586
34601
34606
Grab
Grab
Grab
Grab
EPA 625
0.01
<0.01
mg/ L
EPA 625
EPA 625
EPA 625
0.01
0.01
0.01
<0.01
<0.01
mg/ L
mg/ L
<0.01
mg/ L
4,6-dinitro-o-cresol
2,4-dinitrophenol
2-nitrophenol
4-nitrophenol _.
Pentachlorophenol
Phenol
34657
34616
34591
34646
39032
34694
Grab
EPA 625
0.05
<0.05
mg/ L
Grab
Grab
Grab
EPA 625
0.05
EPA 625
EPA 625
Grab
Grab
EPA 625
EPA 625
0.01
0.05
<0.05
mg/ L
<0.01
<0.05
0.05
0.01
<0.05
mg/ L
mg/
mg/ L
<0.01
g/
L
2, 4, 6-trichlorophenol
34621
Grab
EPA 625
0.01
<0.01
mg/ L
Base neutral compounds
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
Bis (2-chloroethyl) ether
34205
34200
CO220
39120
34526
34247
34230
34521
34242
34278
34273
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
Grab
EPA 625
EPA 625
EPA 625
EPA 625
EPA 625
EPA 625
EPA 625
EPA 625
EPA 625
EPA 625
EPA 625
0.01
0.01
0.01
0.01
<0.01
mg/ L
<0.01 mg/ L
<0.01 mg/ L
<0.01
<0.01
<0.01
<0.01
<0.01
<0.01
mg/ L
mg/ L
mg/ L
<0.01 mg/ L
Form - DMR- PPA-1
Page 2

:permit No.
Annual Monitoring and Pollutant Scan
Outfall
Month
Year
Parameter
Parameter
Code
34283 uym
39100
34636
Sample :.
Type =
TAm Grab
Grab
Analytical
Method '
EPA 625
EPA 625
Quantitation
Level
Sample
Result
Units of
Measurement
Bis (2-chloroisopropyl) ether
0.01
<0.01
mg/ L
Bis (2-ethylhexyl) phthalate
0.01
<0.01
mg/ L
4-bromophenyl phenyl ether
Grab
EPA 625
0.01
<0.01
mg/ L
Butyl benzyl phthalate
34292
34581
Grab
Grab
Grab
EPA 625
0.01
<0.01
mg/ L
2 chloronaphthalene__
4-chlorophenyl phenyl ether
EPA 625
EPA 625
0.01
0.01
<0.01
mg/ L
34641
<0.01
mg/ L
Chrysene
34320
Grab
EPA 625
EPA 625
0.01
<0.01
mg/ L
Di-n-butyl phthalate
39110
Grab
Grab
0.01
<0.01
mg/ L
Di-n-octyl phthalate
34596
EPA 625
0.01
<0.01
mg/ L
Dibenzo(a,h)anthracene i
34556
Grab
EPA 625
0.01
<0.01
mg/ L
1,27dichlorobenzene
34536
34566
34571
34631
34336
Grab
EPA 625
0.01
<0.01
mg/ L
1,3 dichlorobenzene
Grab
Grab
EPA 625
0.01
<0.01
<0.01
mg/ L
1,4-dichlorobenzene
EPA 625
0.01
mg/ L
3,3-dichlorobenzidine
Grab
EPA 625
0.02
0.01
<0.02
mg/ L
Diethyl phthalate
Grab
EPA 625
<0.01
mg/ L
Dimethyl phthalate
34341
Grab
EPA 625
0.01
<0.01
mg/ L
2,4-dinitrotoluene
34611
Grab
Grab
EPA 625
0.01
<0.01
mg/ L
2,6-dinitrotoluene
CO626
EPA 625
EPA 625
0.01
0.05
0.01
<0.01
mg/ L
1,2-diphenylhydrazine
Fluoranthene
34346
CO376
34381
C0700
Grab
<0.05
mg/ L
Grab
Grab
EPA 625
EPA 625
<0.01
mg/ L
Fluorene
Hexachlorobenzene
0.01
<0.01
mg/ L
Grab
EPA 625
EPA 625
EPA 625
0.01
<0.01
mg/ L
Hexachlorobutadiene
39702
34386
34396
34403
Grab
0.01
<0.01
mg/ L
Hexachlorocyclo-pentadiene
Grab
0.01
<0.01
mg/ L
Hexachloroethane
Grab
EPA 625
EPA 625
EPA 625
0.01
<0.01
mg/ L
Indeno(1,2,3-cd)pyrene
Grab
Grab
0.01
<0.01
mg/ L
Isophorone
34408
0.01
<0.01
mg/ L
Naphthalene
34696
Grab
Grab
EPA 625
EPA 625
EPA 625
EPA 625
EPA 625
0.01
<0.01
mg/ L
Nitrobenzene
34447
34428
0.01
<0.01
mg/ L
N-nitrosodi-n-propylamine
Grab
0.01
0.01
0.01
<0.01
mg/ L
N-nitrosodimethylamine
34438
Grab
<0.01
mg/ L
N-nitrosodiphenylamine
34433
Grab
<0.01
mg/ L
Phenanthrene
34461
Grab
EPA 625
EPA 625
EPA 625
0.01
<0.01
mg/ L
Pyrene
34469
Grab
0.01
<0.01
mg/ L
1,2,4,-trichlorobenzene
34551
Grab
0.01
<0.01
mg/ L
"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 managed the system, or those persons directly responsible for gathering the information, the
information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant
penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
Authorized Representative name
Signature
Date
Form - DMR- PPA-1
Page 3

aceAnaIyt ica
www.pacalaibs.com
ANALYTICAL RESULTS
Project: CITY OF CONOVER EFFLUENT
Pace Project No.: 92543985
Pace Analytical Services, LLC
1377 South Paris Drive
Kemersvllle, NC 27284
[phone]
Sample: CITY OF CONOVER Lab ID: 92543985001 Collected: 06/10/21 07:57 Received: 06/11/21 10:51 Matrix: Water
EFFLUENT
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Dual
HEM, Oil and Grease Analytical Method: EPA 1664E
Pace Analytical Services - Charlotte
Oil and Grease ND mg/L 4.9 1 06/16/21 10:26
200.7 MET ICP Analytical Method: EPA 200.7 Rev 4.41994 Preparation Method: EPA 200.7 Rev 4.41994
Pace Analytical Services -Asheville
Antimony NO ug/L 5.0 1 06/16/21 13:18 06/17/21 23:30 7440-36-0
Arsenio ND ug/L 10,0 1 06/16/21 13:18 06/17/21 23:30 7440-38-2
Beryllium ND ug/L 1.0 1 06/16/21 13:18 06/17/21 23:30 7440-41-7
Cadmium ND ug/L 1.0 1 06/16/21 13:18 06/17/21 23:30 7440-43-9
Chromium ND ug/L 5.0 1 06/16121 13:18 06/17/21 23:30 7440-47-3
Copper ND ug/L 5,0 1 06/16/21 13:18 06117/21 23:30 7440-50-8
Lead ND ug/L 5.0 1 06/16/21 13:18 06/17/21 23:30 7439-92.1
Nickel ND ug/L 5.0 1 06/16/21 13:18 06/17/21 23:30 7440-02-0
Selenium ND ug/L 10.0 1 06/16/21 13:18 06/17/21 23:30 7782-49-2
Silver ND ug/L 5.0 1 06/16/21 13:18 06/17/21 23:30 7440-22-4
Thallium ND ug/L 10.0 1 06/16/21 13:18 06/17/21 23:30 7440-28-0
Hardness, Total(SM 23408) 29400 ug/L 662 1 06/16/21 13:18 06/17/21 23:30
Zinc 97.1 ug/L 10.0 1 06/16/21 13:18 06/17/21 23:30 7440-66-6
625 RVE Analytical Method: EPA 625.1 Preparation Method: EPA 625.1
Pace Analytical Services -Charlotte
Acenaphthene ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 83-32-9
Acenaphthylene ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 208-96-8
Anthracene ND ug/L 5,0 1 06/15/21 06:12 06/16/21 20:50 120-12-7
Benzkline ND ug/L 50,0 1 06/15/21 06:12 06/16/21 20:50 92-87-5 IL
Benzo(a)anthracene ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 58-55-3
Benza(a)pyrene ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 50-32-8
Benzo(b)t1uoranlhene ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 205-99-2
Benzo(g,h,i)perylene NO ug/L 5.0 1 06115/2106:12 06/16/21 20:50 191-24-2
Benzo(ic)fluoranthene ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 207-08-9
4-Bromophenylphenyl ether ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 101-55-3
Butylbenzylphthalate ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 85-68-7
4-Chloro-3-methylphenol ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 59-50-7
bls(2-Chloroethaxy)methane ND ug/L 10.0 1 06/15/21 06:12 06/16/21 20:50 111-91-1
bis(2-Chloroethyl) ether ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 111-44-4
2-Chloronaphthalene ND ug/L 5.0 1 06115/21 06:12 06/16/21 20:50 91-68-7
2-Chlorophenol ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 95-57-8
4-Chloraphenylphenyl ether ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 7005-72-3
Chrysene ND ug/L 5,0 1 06/15/21 06:12 06/16/21 20:50 218-01-9
Dibenz(a,h)anthracene ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 53-70-3
1,2-Dichlorobenzene ND ug/L 5,0 1 06/15/21 06:12 06/16/21 20:50 95-50-1
1,3-Diohlarobenzene ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 541-73-1
1,4-Dichlorobenzene ND uglL 5.0 1 06/15/21 06:12 06/16/21 20:50 106-46-7
3,3.-Dichiorabenzidine ND ug/L 10.0 1 06/15/21 06:12 06/16/21 20:50 91-94-1
2,4-Dichlorophenol ND ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 120-83-2
Diethylphthalate ND ug/L 5.0 1 06/15/21 06:12 06118/2120:50 84-66-2
Date: 06/22/2021 04:10 PM
REPORT OF LABORATORY ANALYSIS
Tills report shall not be reproduced, except In full,
without the written consent of Pace Analytical Services, t.LC,
Page 4 of 31

/i ac Analytical
www.pecelehs.cem
Project: CITY OF CONOVER EFFLUENT
Pace Project No.: 92543985
Sample: CITY OF CONOVER
EFFLUENT
Parameters
PaceArnaiytleai Services, LLC
1377 South Park Drive
IKemersvllie, NC 27284
[phone]
ANALYTICAL RESULTS
Lab ID: 92543985001 Collected: 06/10f21 07:57 Received: 06/11/21 10:51 Matrix: Water
Results
Units Report Limit DF Prepared Analyzed GAS No. Qual
625 RVE
2,4-Dimethylphenol
Dimethylphthalate
Di-n-butylphthalate
4,6-Dinitro-2-methylphenol
2,4-Dinitrophenol
2,4-Dlnitrotoluene
2,6-Dlnilrotoluene
DI-n-octylphthalate
1,2-D iphe nylhyd razine
bis(2-Ethylhexyl )phthalate
Fluoranthene
Fluorene
Hexachloro-1 , 3-butad iene
Hexachlorobenzene
Hexachlorocyclopentad iene
Hexachloroethane
lndena(1, 2, 3-cd )pyrene
tsophorone
Naphthalene
Nitrobenzene
2-Nitrophenol
4-Nitrophenol
N-Nitrosodimethylamine
N-Nitroso-di-n-propylamine
N-Nitrosodi phenylamine
2,7-Qxybis(1-ch loropropane)
Pentachlorophenol
Phenanthrene
Phenol
Pyrene
1,2,4-Trichtorobenzene
2,4,6-Trichlorophenol
Surrogates
Nitrobenzene-d5 (8)
2-Fluorobiphenyl (S)
Terphenyl-d14 (S)
Phenol-d6 (8)
2-Fluorophenol (8)
2,4,6-Tribromophenol (S)
624 Volatile OrgaisicsAcrolein
Acrolein
Acrylanitrlle
Benzene
Analytical Method: EPA 625.1 Preparation Method: EPA 625.1
Pace Analytical Services - Charlotte
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NO
ND
ug/L 10.0 1 06/15/21 06:12 08/16/21 20:50 105-67-9
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 131-11-3
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 84-74-2
ug/L 10.0 1 06/15/21 06:12 06/18/21 20:50 534-52-1
ug/L 50.0 1 06/15/21 06:12 06/16/21 20:50 51-28-5
ug/L 5.0 1 06/15/21 06;12 06/16/21 20:50 121-14-2
ug/L 5.0 1 06/15/21 06:12 06116/21 20:50 606-20-2
ug/L 5.0 1 06/15/21 06:12 06/16121 20:50 117-84-0
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 122-66-7
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 117-81-7
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 206-44-0
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 86-73-7
ug/L 5.0 1 06/15/21 06:12 06/16/2120;50 87-68-3
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 118-74-1
ug/L 10.0 1 06/15/21 06:12 06/16/21 20;50 77-47-4
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 67-72-1
ug/L 5.0 1 06115/21 06;12 06/16/21 20:50 193-39-5
ug/L 10.0 1 06/15/21 06;12 06/16/21 20:50 78-59-1
ug/L 5.0 1 06/16/21 06:12 06/16/21 20:50 91-20-3
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 98-95-3
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 88-75-5
ug/L 10.0 1 06/15/21 06:12 06/16/21 20:50 100-02-7
ug/L. 6,0 1 06/15/21 06:12 06/16/21 20:50 62-75-9
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 621.64-7
u9/L 10.0 1 06/15/21 06:12 06/16/21 20:60 86-30-6
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 108-60-1
ug/L 10.0 1 06/15/21 06:12 06/16/21 20:60 87-86-5
ug/L 5.0 1 06/15/21 06:12 06/16/21 20:50 85-01-8
ug/L 5.0 1 06/15/2106:12 06/16/21 20:50 108-95-2
ug/L 5.0 1 06/15/21 06:12 06/16/21 20;50 129-00-0
ug/L 5.0 1 06/15/21 06:12 06/16/21 20;50 120-82-1
ug/L 10,0 1 06/15/21 06:12 06/16/21 20:50 88-06-2
83 % 10-120 1 06/15f2106:12 06/16/21 20:50 4165-60-0
71 % 15-120 1 06/15/21 06:12 06/16/21 20:50 321-60-8
122 % 11-131 1 06/15/21 06:12 06/16/21 20:50 1718-51-0
45 % 10-120 1 06/15/21 06:12 06/16/21 20:50 13127-88-3
56 % 10-120 1 06/15/21 06:12 06/16/21 20:50 367-12-4
94 % 10-137 1 06/15/21 08:12 06/16(21 20:50 118-79-6
Analytical Method: EPA624.1
Pace Analytical Services - Charlotte
ND
ND
ND
ug/L
ug/L
ug/L
5.0 1
5.0 1
1.0 1
REPORT OF LABORATORY ANALYSIS
06/14/21 15:49 107-02-8
06/14/21 15:49 107-13-1
06/14/21 15:49 71-43-2
H1
H1
Hi
Thls report shall not be reproduced, except in full,
without the written consent of Pace Analytical Se€irices, LLC. Page 5 of 31
Date: 06/22/2021 04:10 PM

www.passlabs.cam
ANALYTICAL RESULTS
Project: CITY OF CONOVER EFFLUENT
Pace Project No.: 92543985
Pace Analytical Services, LLC
1377 South Park Drive
KemersvIlle, NC 27284
[phone]
Sample: CITY OF CONOVER
EFFLUENT
Parameters
Lab ID: 92543985001 Collected: 06/10/21 07:57 Received: 06/11/21 10:51 Matrix. Water
Results
Units Report Limit DF Prepared Analyzed CAS No. Qual
624 Volatile Organics Acroleln
Bromodichloromethane
Bromoform
Bromomethane
Carbon tetrachloride
Chlorobenzene
Chforoethane
2-Chloroethylvinyl ether
Chloroform
Chloromethane
Dibromocl'rtoromethane
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethene
trans-1,2-Dichloroethane
1,2-Dichloropropane
1,3-Dichloropropane
Ethylbenzene
Methylene Chloride
1,1,2,2-Tetrachtoroethane
Tetrachloroethene
Toluene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethane
Vinyl chloride
Surrogates
4-Bromofluorbbenzene (S)
Toluene-d8 (S)
1,2-Dichloroethane-d4 (S)
2540C Total Dissolved Solids
Total Dissolved Solids
335.4 Cyanide, Total
Cyanide
350.1 Ammonia
Nitrogen, Ammonia
351.2 Total Kjeldahl Nitrogen
Nitrogen, Kjeldahl, Total
Date: 06/22/2021 04:10 PM
Analytical Method: EPA 624.1
Pace Analytical Services- Charlotte
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
NIO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ug/L
ug/L
ug/L
ug/L.
ug/L
uglL
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
uglL
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
uglL
ug/L
ug/L
105
111 °!a
120
Analytical Method: SM 2540C-2011
Pace Analytical Services -Asheville
229 mg/L
2.0 1
2.0 1
2,0 1
2.0 1
2,0 1
2.0 1
5.0 1
2.0 1
2.0 1
2.0 1
2.0 1
2.0 1
2.0 1
2.0 1
2.0 1
2.0 1
1.0 1
2.0 1
2.0 1
2.0 1
1.0 1
2.0 1
2.0 1
2.0 1
2,0 1
70-130 1
70-130 1
70-130 1
25.0 1
06/14/21 15:49 75-27-4 H1
06/14/21 15:49 75-25-2 H1
06/14/21 15:49 74-83-9 H1
06/14/21 15:49 56-23-5 H1
06/14/21 15:49 108-90-7 H1
06/14/21 15:49 75-00-3 H1
06/14/21 15;49 110-75-8 H1
06/14/21 15:49 67-66-3 H1
06/14/21 15:49 74-87-3 H1
06/14/21 15:49 124-48-1 H1
06/14/21 15:49 76-34-3 H1
06/14/21 15:49 107-06-2 H1
06/14/21 15:49 75-35-4 HI
06/14/21 15:49 156-60-5 H1
06/14/21 15:49 78-87-5 H1
06/14/21 15:49 142-28-9 H1
06/14/21 15:49 100-41-4 H1
06/14/21 15:49 75-09-2 H1
06/14/21 15:49 79-34-5 H1
06/14/21 15:49 127-18-4 H1
06/14/21 15:49 108-88-3 HI
06/14/21 15:49 71-55-6 H1
06/14/21 15:49 79-00-5 H1
06/14/21 15:49 79-01-6 H1
06/14/21 15:49 75-01-4 141
06/14/21 15:49
06/14/21 15:49
06/14/21 15:49
06/14121 12:27
460-00-4
2037-26-5
17060-07-0
Analytical Method: EPA 335,4 Preparation Method: EPA 335.4
Pace Analytical Services - Ormond Beach
ND mg/L 0.010 1 06/22/21 07:03 06/22/21 09:47 57-12-5
Analytical Method: EPA 350.1 Rev 2.01993
Pace Analytical Services -Asheville
0.24 mg/L 0.10 1
06/16/21 17:10 7664-41-7
Analytical Method: EPA 351.2 Rev 2.0 1993 Preparation Method: EPA 351.2 Rev 2.0 1993
Pace Analytical Services - Asheville
1.1 mg/L
0.50 1 06/16/21 21:26 06/17/21 06:14 7727-37-9
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in Full,
without the written consent of Pace Analytical Services, LLC.
Page 6 of 31

www,pacelada,com
Project: CITY OF CONOVER EFFLUENT
Pace Project No.: 92543985
Sample: CITY OF CONOVER
EFFLUENT
Parameters
Pace Analytical Services, LLC
1377 South Park Drive
Kernersvllle, NC 27284
[phone]
ANALYTICAL RESULTS
Lab ID: 92543985001 Collected: 06/10/21 07:57 Received: 06/11/21 10:51 Matrix: Water
Results
Units Report Limit -DF Prepared Analyzed CAS No. Qual
353.2 Nitrogen, NO21NO3 Ares,
Nitrogen, NO2 plus NO3
365.1 phosphorus, Total
Phosphorus
420.4 Phenolics, Total
Phenolics, Total Recoverable
Date: 06/22/2021 04:10 PM
Analytical Method: EPA 353.2 Rev 2.0 1993
Pace Analytical Services - Asheville
3.3 mg1L
0.040 1
06/17/21 10:04
Analytical tviethod: EPA366,1 Rev 2.0 1993 Preparation Method: EPA365,1 Rev 2.01993
Pace Analytical Services -Asheville
3.0 mg/L
0.050 1 06/16121 18:07 06/17/21 00:10 7723-14-0
Analytical Method: EPA 420.4 Rev 1,0 1993 Preparation Method: EPA 420.4 Rev 1,01993
Pace Analytical Services -Asheville
NO mg/L
0,020 1 06/16/21 11:30 06/16/21 10:08 64743-03-9
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC,
Page 7of31

Ambient Monitoring System Station Summaries
NCDENR, Division of Water Resources
Basinwide Assessment Report
Location: LYLE CRK AT US HWY 70 NR CATAWBA
Station #: C3220000 Hydrologic Unit Code: 03050101
Latitude: 35.72065 Longitude: -81.10899 Stream class: WS-IV CA
Agency: NCSPST NC stream index: 11-76-(4.5)
Time period: 02/21/2018 to 07/25/2018
Othe
Turbidity (NTU)
Nutrients (
NH3 as N
NO2 + NO3 as N
TKN as N
Total Phosphorus
# # Results not meeting EL Percentiles
results ND EL # % %Conf Min loth 25th 50th 75th 90th Max
5 0 >50
6 0 N/A
6 0 >10
6 0 N/A
5 0 N/A
3 60 6.1 6.1 8.6 75 400 600 600
0.02 0.02 0.03 0.03 0.07 0.12 0.12
0 0 0.6 0.6 0.62 0.86 1 1.1 1.1
0.24 0.24 0.28 0.52 1.35 3 3
0.04 0.04 0.05 0.07 0.22 0.29 0.29
Fecal Coliform Screening(#/100mL
# results: Geomean: #> 400: % > 400: %Conf:
6 1020.9 4 66.7
Kev:
# result: number of observations
# ND: number of observations reported to be below detection level (non -detect)
EL: Evaluation Level; applicable numeric or narrative water quality standard or action level
Results not meeting EL: number and percentages of observations not meeting evaluation level
%Conf : States the percent statistical confidence that the actual percentage of exceedances is greater than 10% (20% for Fecal Coliform)
Stations with less than 10 results or less than or equal to 10% (20% Fecal Colifomi) exceedance for a given parameter were not evaluated for
statistical confidence

C�`� �� C Annual Monitoring and Pollutant Scan
Per
mit No. �Z J
Outfall (DO D.
Month A, O 0J
Year I7
Facility Name City of Conover NEWWTP
Date of sampling 11 / 16 / 17
Analytical Laboratory Research and Analytical/ Water Tech Labs
ORC Michael Fox
Phone [phone]
Parameter
Code
Sample
Analytical Method
ivantitation
Level
Sample.
Result
Units of
Measurement
Ammonia (as N)
C0610
Chlorine (total residual, TRC)
Dissolved Oxygen
50060
00300
Composite
Grab
Grab
ASTM D 1426-08 A
0.2
Nitrite plus Nitrate Total (as N)
00630
Composite
Total Kjeldahl Nitrogen
Oil and Grease
00625
Composite
SM4500 CI-2000
SM 4500 0 G-2001
SM 4500 ?103 E-2000
SM 9500 Narg I3•1997)S01 9500 NH3 C-1997)
17
0.1
0,5
0.14
<0.2
<17
8
5.9
1.4
mg/1
ug/1
mg/ 1
mg/1
mg/1
00556
Grab
EPA 1664 Rev B
5
<5.6
mg/1
Total Phosphorus
C0665
Total Dissolved Solids
70295
Hardness
00900
Composite
Composite
Composite
SM 4500 P E-1999
0.16
3.07
SM 2540 C-1997
5
244
SM 2340 C-1997
1
30
mg/1
mg/1
mg/1
Metals (total recoverable), Cyanide and total phenols
Antimony
01097
Composite
EPA 200.8
0.001
0.001
mg/ L
Arsenic
01002
Composite
EPA 200.8
0.001
<0.001
mg/ L
Beryllium
01012
Composite
EPA 200.8
0.001
<0.001
mg/L
Cadmium
01027
Composite
EPA 200.8
0.005
<0.0005
mg/L
Chromium
01034
Composite
EPA 200.8
0.001
<0.001
mg/L
Copper
01042
Composite
EPA 200.8
0.001
0.002
mg/L
Lead
01051
Composite
EPA 200.8
0.001
<0.001
mg/L
Mercury (Method 1631E)
COMER
Composite
EPA1631E
0.200
0.500
ng/L
Nickel
01067
Composite
EPA 200.8
0.001
0.001
mg/L
Selenium
01147
Composite
EPA 200.8
0.001
<0.001
mg/L
Silver
01077
Composite
EPA 200.8
0.001
<0.001
mg/L
Thallium
01059
Composite
EPA 200.8
0.001
<0.001
mg/ L
Zinc
01092
Composite
EPA 200.8
0.001
0.102
mg/ L
Cyanide
00720
Grab
SM 4500CN E-1999
0.005
<0.005
mg/L
Total phenolic compounds
32730
Grab
EPA 420.1
0.005
<0.005
mg/L
Volatile organic compounds
Acrolein
34210
Grab
- EPA Method 624
0.100
BQL
mg/L
Acrylonitrile
34215
Grab
EPA Method 624
0.100
BQL
mg/L
Benzene
34030
Grab
EPA Method 624
0.010
BQL
mg/L
Bromoform
32104
Grab
EPA Method 624
0.010
BQL
mg/L
...........
Carbon Tetrachloride
32102
Grab
EPA Method 624
0.010
BQL
mg/ L
Chlorobenzene
34301
Grab
EPA Method 624
0.010
BQL
mg/L
Chlorodibromomethane
34306
Grab
EPA Method 624
0.010
SQL
mg/L
Chloroethane
85811
Grab
EPA Method 624
0.010
BQL
mg/L
2-chloroethyl vinyl ether
34576
Grab
EPA Method 624
0.010
BQL
mg/L
Chloroform
32106
Grab
EPA Method 624
0.010
BQL
mg/L
Dichlorobromomethane
32101
Grab
EPA Method 624
0.010
BQL
mg/L
1,1-dichloroethane
34496
Grab
EPA Method 624
0.010
BQL
mg/L
1,2-dichloroethane
32103
Grab
EPA Method 624
0.010
BQL
mg/L
Trans-1,2-dichloroethylene
34546
Grab
EPA Method 624
0.010
BQL
mg/L
1,1-dichloroethylene
34501
Grab
EPA Method 624
0.010
SQL
mg/L
1,2-dichloropropane
34541
Grab
EPA Method 624
0.010
BQL
mg/L
1,3-dichloropropylene
77163
Grab
EPA Method 624
0.010
BQL
mg/L
Form - DMR- PPA-1
Page 1

Annual Monitoring and Pollutant Scan
Permit No.
Outfall
Month
Year
_ .-. ..
Parameter
Parameter
Code.
Sample:::;
Type
;'
; AnalyticalMethodLevel
Qua�t3 tat ion
Sample
Result .
Units of
Measurement
-
Ethylbenzene
34371
Grab
EPA Method 624
0.010
BQL
mg/L
Methyl Bromide
34413
34418
Grab
Grab
EPA Method 624
EPA Method 624
0.010
BQL
mg/L
Methyl Chloride
0.010
BQL
mg/L
Methylene Chloride
34423
Grab
EPA Method 624
0.010
BQL
mg/L
1,1,2,2-tetrachloroethane
81549
Grab
EPA Method 624
0.010
BQL
mg/L
Tetrachloroethylene
34475
Grab
EPA Method 624
0.010
BQL.
mg/L
Toluene
34010
Grab
EPA Method 624
0.010
BQL
zng/L
1,1,1-trichioroethane
34506
Grab
EPA Method 624
0.010
BQL
mg/ L
1,1,2-trichloroethane
34511
Grab
EPA Method 624
0.010
BQL
mg/L
Trichloroethylene
39180
Grab
EPA Method 624
0.010
BQL
mg/L
Vinyl Chloride
39175
Grab
EPA Method 624
0.010
BQL
mg/L
Acid -extractable compounds
P-chloro-m-creso
34452
Grab
EPA Method 625
0.010
BQL
mg/L
2-chlorophenol
34586
Grab
EPA Method 625
0.010
BQL
mg/L
2,4-dichlorophenol
34601
Grab
EPA Method 625
0.010
BQL
mg/L
2,4-dimethylphenol
34606
Grab
EPA Method 625
0.010
BQL
mg/L
4,6--dinitro--o-cresol
34657
Grab
EPA Method 625
0.05
BQL
mg/L
2,4--dinitrophenol
34616
Grab
EPA Method 625
0.050
BQL
mg/L
2--nitrophenol
34591
Grab
EPA Method 625
0.010
BQL
mg/L
4-nitrophenol
34646
Grab
EPA Method 625
0.050
BQL
mg/L
Pentachlorophenol
39032
Grab
EPA Method 625
0.050
BQL
mg/L
Phenol
34694
Grab
EPA Method 625
0.010
BQL
mg/L
2,4,6-trichlorophenol
34621
Grab
EPA Method 625
0.010
BQL
mg/L
Base -neutral compounds
Acenaphthene
34205
Grab
EPA Method 625
0.010
SQL
mg/L
Acenaphthylene
34200
Grab
EPA Method 625
0.010
BQL
mg/L
Anthracene
CO220
Grab
EPA Method 625
0.010
BQL
mg/ L
Benzidine
39120
Grab
EPA Method 625
0.050
BQL
mg/L
Benzo(a)anthracene
34526
Grab
EPA Method 625
0.010
BQL
mg/L
Benzo(a}pyrene
34247
Grab
EPA Method 625
0.010
BQL
mg/L
3,4 benzofluoranthene
34230
Grab
EPA Method 625
0.010
BQL
mg/L
Benzo(ghi)perylene
34521
Grab
EPA Method 625
0.010
BQL
mg/L
Benzo(k)fluoranthene
34242
Grab
EPA Method 625
0.010
BQL
mg/L
Bis (2-chloroethoxy) methane
34278
Grab
EPA Method 625
0.010
BQL
rng/L
Bis (2-chloroethyl) ether
34273
Grab
EPA Method 625
0.010
BQL
mg/L
Bis (2-chloroisopropyl) ether
34283
Grab
EPA Method 625
0.010
BQL
mg/L
Bis (2-ethylhexyl) phthalate
39100
Grab
EPA Method 625
0.010
BQL
mg/L
4-bromophenyl phenyl ether
34636
Grab
EPA Method 625
0.010
BQL
mg/L
Butyl benzyl phthalate
34292
Grab
EPA Method 625
0.010
BQL
mg/ L
2-chloronaphthalene
34581
Grab
EPA Method 625
0.010
BQL
mg/L
4-chlorophenyl phenyl ether
34641
Grab
EPA Method 625
0.010
SQL
mg/L
Chrysene
34320
Grab
EPA Method 625
0.010
BQL
mg/L
Di-n-butyl phthalate
39110
Grab
EPA Method 625
0.010
BQL
mg/L
Di-n-octyl phthalate
34596
Grab
EPA Method 625
0.010
BQL
mg/L
Dibenzo(a,h)anthracene
34556
Grab
EPA Method 625
0.010
BQL
mg/L
1,2-dichlorobenzene
34536
Grab
EPA Method 625
0.010
BQL
mg/L
1,3-dichlorobenzene
34566
Grab
EPA Method 625
0.010
BQL
mg/L
1,4-dichlorobenzene
34571
Grab
EPA Method 625
0.010
BQL
mg/L
Form - DMR- PPA-1
Page 2

Annual Monitoring and Pollutant Scan
Permit No.
Outfall
Month
Year
Date
Parameter
Parameter
Code :
":Sample ;`
Type
Analytical Method
Quantitation
Level
Sample: ;.'
Result '
Units of
Measurement
3,3-dichlorobenzidine
34631
Grab
EPA Method 625
0.010
BQL
mg/L
Diethyl phthalate
34336
34341y...-...._..
Grab
Grab_...
EPA Method 625
EPA Method 625.w_.,,m,...0.010
0.010
BQL
mg/L
Dimethyl phthalate
BQL
mg/L
2,4-dinitrotoluene
34611
Grab
EPA Method 625
0.010
BQL
mg/L
2,6-dinitrotoluene
C0626
Grab
EPA Method 625
0.010
BQL
mg/L
1,2-diphenylhydrazine
34346
Grab
EPA Method 625
0.050
BQL
mg/L
Fluoranthene
C0376
Grab
EPA Method 625
0.010
BQL
mg/L
Fluorene
34381
Grab
EPA Method 625
0.010
BQL
mg/L
Hexachlorobenzene
C0700
Grab
EPA Method 625
0.010
BQL
mg/L
FHexachlorobutadiene
39702
Grab
EPA Method 625
0.010
BQL
mg/L
Hexachlorocyclo-pentadiene
34386
Grab
EPA Method 625
0.010
BQL
mg/L
Hexachloroethane
34396
Grab
EPA Method 625
0.010
BQL
mg/L
Indeno(1,2,3-cd)pyrene
34403
Grab
EPA Method 625
0.010
BQL
mg/L
Isophorone
34408
Grab
EPA Method 625
0.010
BQL
mg/L
Naphthalene
34696
Grab
EPA Method 625
0.010
BQL
mg/L
Nitrobenzene
34447
Grab
EPA Method 625
0.010
BQL
mg/L
N-nitrosodi-n-propylamine
34428
Grab
EPA Method 625
0.010
BQL
mg/L
N-nitrosodimethylamine
34438
Grab
EPA Method 625
0.010
BQL
mg/L
N-nitrosodiphenylamine
34433
Grab
EPA Method 625
0.010
BQL
mg/L
Phenanthrene
34461
Grab
EPA Method 625
0.010
BQL
mg/L
Pyrene
34469
Grab
EPA Method 625
0.010
BQL
mg/L
1,2,4,-trichlorobenzene
34551
Grab
EPA Method 625
0.010
BQL
mg/L
"l 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
managed the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete. 1 am aware that there are significant penalties for submitting false information, including the possibility of fines
and imprisonment for knowing violations."
Authorized, Representatiname
ature
I al �(
7
Foiui _ DMR- PPA-1 Page 3

Company :
Address :
Contact:
Project:
Client Sample ID: Ci
Sample ID:
Matrix: 54
Collect D Wa
ate: !0
Receive Date: 15-1
Collector:
Cli
2040 Sava GEL LABORATORIES 9 Road Charleston SC 29407. PLC
[phone] - �+•gel.corn
Certificate of
Wafer Tech LabAnal sip
P oratories
Box 1056
Granite Falls, North Carolina 28630
Mr. Tony Gragg
Routine Analysis
ty of Conover Effluent
73I4001
ter
• JN-21 07:55
UN-21
ent
Parameter
Mercury Analysis-CVAA Qualifier Result
EPA 1631 Low Level Mercury Analysis "As
Mercury
The folJowin Received
g AnalyticaI Method 0.rfo
vlpthod
DeSCfi � t!i
EPA 1631E
otes:
)Iurnn headers are
defined as follows:
Dilution Factor
Detection Limit
)A: Minimum Detectable Activity
IC: Minimum Detectable Concentration
0.200
0,500
Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
ng/L
Project: WATR00101
Client ID: WATR001
Report Date: June 23, 2021
DF Analyst Date Time Batch Method
CW2 06/22/21 1206 2139660
f 12 SDG: 5473I4

Company :
Address :
Contact:
Project:
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis
Water Tech Laboratories
P.O. Box 1056
Granite Falls, North Carolina 28630
Mr. Tony Gragg
Routine Analysis
Report Date: June 23, 2021
Client Sample ID:
Sample ID:
Matrix:
Collect Date:
Receive Date:
Collector:
Field Blank
547314002
BLANK
I0-JUN-21 07:55
15-JUN-21
Client
Project: WATR00101
Client ID: WATR001
Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method
Mercury Analysis-CVAA
EPA 1631 Low Level Mercury Analysis "As Received"
Mercury U <0.2 0.200 0.500 ng/L 1 CW2 06/22/21 1147 2139660 1
The following Analytical Methods were performed:
Method Description
1 EPA 1631E
Notes:
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
Analyst Comments
Page 4 of 12 SDG: 547314

Company :
Address :
Contact:
Project:
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis
Water Tech Laboratories
P.O. Box 1056
Granite Falls, North Carolina 28630
Mr. Tony Gragg
Routine Analysis
Client Sample ID:
Sample ID:
Matrix:
Collect Date:
Receive Date:
Collector:
Report Date: June 23, 2021
Trip Blank
547314003
BLANK
10-JUN-21 07:55
15-JUN-21
Client
Project: WATR00101
Client ID: WATR001
Parameter Qualifier Result
Mercury Analysis-CVAA
EPA 1631 Low Level Mercury Analysis "As Received"
Mercury .1 0.30
The following Analytical Methods were performed:
Method
1
Notes:
Description
EPA 163IE
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
DL RL Units PF DF Analyst Date Time Batch Method
0.200 0.500 ng/L
Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
1 CW2 06/22/21 1152 2139660 1
Analyst Comments
Page 5 of 12 SDG: 547314

Company :
Address :
Contact:
Project:
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis
Water Tech Laboratories
P.O. Box 1056
Granite Falls, North Carolina 28630
Mr. Tony Gragg
Routine Analysis
Client Sample ID:
Sample ID:
Matrix:
Collect Date:
Receive Date:
Collector:
City of Conover Effluent DUP
547314004
Water
10-JUN-21 07:55
15-JUN-21
Client
Report Date: June 23, 2021
Project: WATR00101
Client ID: WATR001
Parameter Qualifier Result
Mercury Analysis-CVAA
EPA 1631 Low Level Mercury Analysis "As Received"
Mercury 0.605
The following Analytical Methods were performed:
Method Description
1 EPA 1631E
Notes:
Column headers are defined as follows:
DF: Dilution Factor
DL: Detection Limit
MDA: Minimum Detectable Activity
MDC: Minimum Detectable Concentration
DL RL Units PF DF Analyst Date Time Batch Method
0.200 0.500 ng/L
Lc/LC: Critical Level
PF: Prep Factor
RL: Reporting Limit
SQL: Sample Quantitation Limit
1 C W 2 06/22/21 1211 2139660 1
Analyst Comments
Page 6 of 12 SDG: 547314

GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
Water Tech Laboratories
P.O. Box 1056
Granite Falls, North Carolina
Contact: Mr. Tony Gragg
Workordcr: 547314
Parmname
QC Summary
Report Date: June 23, 2021
Page 1 of 2
Metals Analysis -Mercury
Batch 2139660
NOM Sample Qua! QC Units RPD% REC% Range Anlst Date Time
QC1204844144 LCS
Mercury 5,00 4.75 ng/L 94.9 (77%-123%) CW2 06/22/21 11:38
QC1204844143 MB
Mercury U <0,2 ng/L 06/22/21 11:33
QC1204844145 547314004 MS
Mercury 2.50 0.605 2.45 ng/L 73.8 (71%-125%) 06/22/21 12:20
QC1204844146 547314004 MSD
Mercury 2.50 0.605 2.45 ng/L 0.123 73.6 (0%-24%) 06/22/2112:24
Notes:
The Qualifiers in this report are defined as follows:
< Result is less than value reported
> Result is greater than value reported
E %difference of sample and SD is >10%. Sample concentration must meet flagging criteria
FB Mercury was found present at quantifiable concentrations in field blanks received with these samples, Data associated with the blank are deemed
invalid for reporting to regulatory agencies
H Analytical holding time was exceeded
J See case narrative for an explanation
J Value is estimated
N Metals --The Matrix spike sample recovery is not within specified control limits
N/A RPD or %Recovery limits do not apply.
Ni See case narrative
ND Analyte concentration is not detected above the detection limit
NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
R Sample results are rejected
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Y Other specific qualifiers were required to properly define the results. Consult case narrative.
Page 7 of 12 SDG: 547314

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EPA Identification Number NPDES Number
Facility Name
Outfall Number
Pollutant (Required) CAS number
Method Number
(if Applicable)
Reason
Pollutant
in Dischargel
Estirtiated Corcentratlon'! (If
Known)