NC0081736_Draft Fact Sheet_20230208

Fact Sheet
NPDES Permit No. NCO081736
Permit Writer/Email Contact Gary Perlmutter, [e-mail]:
Date: February 8, 2023
Division/Branch: NC Division of Water Resources / NPDES Municipal Permitting Unit
Fact Sheet Template: Version 09Jan2017
Permitting Action:
® Renewal
❑ Renewal with Expansion
❑ New Discharge
❑ Modification (Fact Sheet should be tailored to mod request)
Note: A complete application should include the following:
• For New Dischargers, EPA Form 2A or 2D requirements, Engineering Alternatives Analysis, Fee
• For Existing Dischargers (POTW), EPA Form 2A, 3 effluent pollutant scans, 4 2nd species WET
tests.
• For Existing Dischargers (Non-POTW), EPA Form 2C with correct analytical requirements based
on industry category.
Complete applicable sections below. If not applicable, enter NA.
1. Basic Facility Information:
Facility Information
Applicant/Facility Name:
Pender County / Melinda B. Knoerzer Wastewater Treatment Facility
(WTTF)
Applicant Address:
P.O. Box 995, Burgaw, NC 28425
Facility Address:
469 Quality Way, Wilmington, NC 28401
Permitted Flow:
0.5 MGD / 4.0 MGD
Facility Type/Waste:
MINOR Municipal; 96.4% domestic, 3.6% industrial'
Facility Class:
Grade II / IV
Treatment Units:
Primary Screens, Grit Removal, Equalization Tank, Primary Aerobic
Moving Bed Bioreactors (MBBRs), Submerged Fixed Film Reactors
(SFFRs), Secondary Clarifiers, Cloth Media Filters,
UV Disinfection, Outfall with Submerged Diffuser, Solids Handling
Pretreatment Program (Y/N)
No
County:
Pender
Region
Wilmington
Footnote.
1. Permitted industrial flow = 0.018 MGD.
Briefly describe the proposed permitting action and facility background: Pender County Utilities had
applied for an NPDES permit renewal for its Melinda B. Knoerzer Adaptive Ecosystem Wastewater
Page 1 of 16

Treatment Facility (US 421 WTTF, hereafter "WWTF"), received by DWR on October 28, 2020. Review
of the application found it incomplete with one 2nd species WET test sampled in September 2020 and data
from two PPAs. Three PPAs and four 2nd species test reports were received in September 2022 upon
request; the PPAs were sampled in December 2019, July 2020 and June 2022; the 2nd species (Ceriodaphnia
dubia) tests were sampled in September 2019, June 2020, March 2021 and June 2022. Two additional 2nd
species tests were sampled in November and December 2022 by request.
This facility serves the Pender Commerce Park (pop. —480) and treats domestic and industrial wastewater
without a pretreatment program. The County did submit a sewer ordinance for Division review in April
2017, including a set of local limits, which the Division approved that month. From review of the facility's
Headworks Analysis on file, their one listed industrial user, Acme Smoked Fish, has local limits for TSS
and Ammonia > 5% of the allowable industrial loading, making it a Significant Industrial User (SIU) in
need of a permit. The facility's pretreatment program is currently under development. To ensure timeliness
of this development, a compliance schedule for the pretreatment program will be added to the permit.
The permit was first issued in 1996 for the planned New Hanover County Airport WWTP, owned by the
City of Wilmington with a discharge location at the confluence of the Cape Fear River and Northeast Cape
Fear River. In 2009, ownership was transferred to the Cape Fear Public Utility Authority (CFPUA), and
the plant site location was changed to its current location further upstream in Pender County with the name
changed to US Highway 421 WWTP. In 2014, ownership was transferred to Pender County and an
Authorization to Construct was granted by the Division to build the 0.5 MGD facility. Construction was
completed in June 2017 and the plant began discharging in September 2017. Also in 2017, the County
requested the facility name be changed to its current name: Melinda B. Knoerzer Adaptive Ecology
Wastewater Treatment Facility. During this permit renewal preparation the County requested the facility
name be changed to "Melinda B. Knoerzer WWTF"; the requested name change will be made in the permit.
The current permit is for a two-phase plant, with the first phase at 0.5 MGD discharging via Outfall 001
using the existing outfall and diffuser of the BASF industrial facility, whose permit (NC0059234) was
rescinded in 2009. This outfall is shared with Pender County WTP (NC0088820), which discharges a
monthly average of 0.2 MGD backwash. Currently, about 50,000 gallons/day of WTP backwash is treated
by the WWTP. The second phase will be an upgrade to 4.0 MGD with a new outfall and diffuser (Outfall
002) to be constructed alongside Outfall 001.
The treatment system begins with the influent entering a primary screen then an equalization tank. Primary
treatment involves three aerated primary treatment tanks with attached growth media, called moving bed
bioreactors (MBBRs), to remove carbonaceous material. Wastewater then enters submerged fixed film
reactors (SFFRs) to reduce BOD and complete nitrification. The SFFR surfaces are covered with vegetation
in a hydroponic greenhouse structure. Subsequent treatment units include two secondary clarifiers, two
clothe media filters, UV disinfection, return activated sludge/waste activated sludge, and an outfall with a
submerged diffuser.
Sludge Disposal Plan. The facility has a contractor (McGill Associates) haul off digested sludge for
composting.
Page 2 of 16

2. Receiving Waterbody Information
Receiving Waterbody Information
Outfalls/Receiving Stream(s):
Outfall 001 / Cape Fear River
Stream Segment:
18-(63)
Stream Classification:
C-Sw; PNA
Drainage Area (mi):
7040
Summer 7Q 10 (cfs)
918
Winter 7Q10 (cfs):
-
30Q2 (cfs):
-
Average Flow (cfs):
8142
IWC (% effluent):
0.08 at 0.5 MGD / 0.67 at 4.0 MGD
NC 2022 303(d) listed/parameter:
Benthos
Subject to TMDL/parameter:
State-wide Mercury TMDL
Basin/HUC:
Cape Fear River Basin / 03030005
USGS Topo Quad:
J26SE / Leland, NC
The receiving water is impaired for Benthos, based on a Fair bioclassification rating from two samplings,
in 1993 and 1998.
3. Effluent Data Summary
Effluent data for Outfall 001 are summarized in Table 1 for the period from August 2018-July 2022.
ITable 1. Effluent Data Summary Outfall 001.
Parameter
Units
Average
Max
Min
Permit Limit'
Flow 2
MGD
0.13
0.33
0.01
MA 0.5
BOD5 (Apr -Oct)
mg/L
3.2
22.0
< 2.0
MA = 5.0
WA = 7.5
BOD5 (Nov -Mar)
mg/L
7.1
50.0
< 2.0
MA = 10.0
WA = 15.0
BOD removal
%
98.9
100.0
68.6
> 85
TSS
mg/L
7.56
72.0
< 1.0
MA = 10.0WA
= 15.0
TSS removal
%
97.0
100.0
-25.0
> 85
NH3-N (Apr -Oct)
mg/L
1.33
9.40
< 0.2
MA = 1.0
WA = 3.0
NH3-N (Nov -Mar)
mg/L
1.78
11.20
1.0
MA = 2.0
WA = 6.0
Page 3 of 16

Parameter
Units
Average
Max
Min
Permit Limit'
TRC
µg/L
NA'
DM = 28
Fecal Coliform
(geometric mean)
#/100 mL
1.7
> 2419.E
< 1
MA = 200
WA — 400
Dissolved Oxygen (DO)
mg/L
7.97
10.7
5.2
DA > 6.0
Oil & Grease
mg/L
85.0
< 5.0
Temperature
°C
41.70
12.10
Conductivity
µmhos/cm
2623
4910
1138
pH
S.U.
6.9
8.8
4.8
6.0-9.0
Total Nitrogen
mg/L
8.18
19.60
2.20
Total Phosphorus
mg/L
0.20
0.64
< 0.05
Total Hardness
mg/L
36
52
26
Total Mercury
ng/L
0.87
4.W
0.50
Footnotes.
1. MA = Monthly Average, WA = Weekly Average, DA = Daily Average; DM = Daily Maximum.
2. Average for CY2021 = 0.15 MGD, 30% of design flow.
3. No data available; the facility uses UV disinfection.
Effluent temperature data review revealed several unusually high values recorded throughout the review
period. According to the ORC, samples were collected directly after the UV unit and before effluent pump
station, wherein it resides for about an hour or more before discharge to the river. The ORC noted that the
sampling location will be changed to one where the water temperature is more representative of the
discharge.
On December 27, 2018, the effluent pH was reported at 4.8 SU. Comments in the corresponding DMR
state: "We had a check valve stick open after a RAS that let water from are EQ basin bypass are MBBR and
SFFR that water go to are clarifier. It took a few days to figure out what was going on. We did fix the check
valves. We also increased are [our] Alum."
Several elevated levels of BOD, TSS and Ammonia occurred throughout the review period, including
multiple instances of < 85% BOD and TSS removal. Comments to the relevant DMRs documented issues
with the system, including bacteria die -off, cloud formation as well as stirring up solids from maintenance
activities. In February 2022, the plant began accepting water from a decommissioned wastewater treatment
plant that was "too clean" and disrupted the treatment biota resulting in elevated ammonia. During that time
(February -March 2022) the plant experienced stratification with floating sludge, presumably from receipt
of an unknown chemical. See attached DMR Comments.
4. Instream Data Summary
Instream monitoring may be required in certain situations, for example: 1) to verify model predictions when
model results for instream DO are within 1 mg/L 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
Page 4 of 16

established in several basins that conduct instream sampling for the Permittee (in which case instream
monitoring is waived in the permit as long as coalition membership is maintained).
Is this facility a member of a Monitoring Coalition with waived instream monitoring (YIN): Yes.
Name of Monitoring Coalition: Lower Cape Fear River Program (LCFRP), acknowledged by DWR in
January 2017.
If applicable, summarize any instream data and what instream monitoring will be proposed for this permit
action: The current permit has instream monitoring requirements for Dissolved Oxygen and Temperature
at frequencies of weekly from October through May and 3/week from June through September. Instream
monitoring locations are at least 50 It upstream of the discharge and at least 500 It downstream of it.
Instream data from August 2018December 2021 were obtained from DWR's monitoring coalition
database for LCFRP stations B8465000 (upstream at intake near Hooper Hill) and B9030000 (downstream,
upstream of Indian Creek near Phoenix) for review. These data were checked for statistically significant
differences by Student's t-test and compared against concurrent effluent data as well as applicable state
water quality standards (WQS). Statistical significance level (p-value) was set at 0.05. Instream data review
findings for each parameter are summarized in Table 2 below.
Table 2. Instream monitoring summary statistics. Parameters in bold are permit -required.
Upstream
Downstream
Parameter
Average
Maximum
Minimum
Average
Maximum
Minimum
Dissolved oxygen (DO), mg/L
6.83
11.40
2.60
6.32
10.80
0.20
Temperature, water, deg. C
21.51
32.00
6.20
21.65
31.70
6.20
Ammonia -nitrogen, mg/L
0.08
0.17
0.02
0.08
0.27
0.02
Fecal coliform, #/100 mL (geomean)
20.88
364.00
2.00
25.02
1500.00
5.00
Inorganic nitrogen (nitrate and nitrite), mg/L
0.37
36 1.13
0.02
0.41
3.16
0.02
Kjeldahl nitrogen, mg/L
0.69
1.5
0.10
0.78
2.50
0.20
pH, SU
6.64
7. 0
5.70
6.53
7.70
5.60
Phosphorus, mg/L
0.25
1.40
0.04
0.21
0.82
0.02
Specific conductance, uS/cm
134.26
246.00
65.00
264.16*
6710.00
8.00
Total Suspended Solids, mg/L
13.07
46.20
2.50
9.76
35.50
2.50
Dissolved Oxygen (DO) - DO remains in the permit as a parameter of concern for aquatic life. The receiving
stream segment is meeting criteria for DO in the 2022 Integrated Report. Reviewed instream data found the
minima to be above the standard in both stations. No statistical differences were detected between the
upstream and downstream stations. No changes to instream DO monitoring are proposed.
Temperature - Temperature remains in the permit as a parameter of concern for aquatic life. The receiving
stream segment is meeting criteria for Temperature in the 2022 Integrated Report. Reviewed instream
temperature data showed summer temperature maxima at both stations were at or below the WQS of 32°C
for lower piedmont and coastal plain waters (15A NCAC 02B .0211). No statistical differences were found
between upstream and downstream average temperatures. Review of paired up- to downstream
temperatures found 1 exceedance of the 2.8°C increase standard (15A NCAC 02B .0211). No changes to
instream Temperature monitoring are proposed.
Page 5 of 16

Conductivity — Conductivity is a parameter of concern due to industrial discharges; the facility treats
industrial waste from one user, a fish processing facility, with a pretreatment program in development.
Instream Conductivity requirements are not in the current permit. Review of instream data collected by
LCFRP found no statistically significant difference between the up- and downstream stations. Based on
these results instream conductivity monitoring is not required and will not be added to the permit.
Fecal Coliform — Fecal Coliform is a parameter of concern for aquatic life and human health. The receiving
stream segment is meeting criteria for Fecal Coliform in the 2022 Integrated Report. Review of monthly
instream data found the Geomean at both stations to be below 200 cfu/100 mL with no values > 400 cfu/100
mL upstream and 1 value > 400 cfu/100 mL downstream. Concurrent effluent fecal coliform was
substantially lower. Based on these results and that the receiving stream is neither a Class B nor impaired
for Fecal Coliform, instream monitoring for this parameter is not required and will not be added to the
permit.
Other parameters. The LCFRP also monitored instream stations for several nutrient -related parameters
(Ammonia, pH, NO2+NO3, TKN, Phosphorus, and TSS; see Table 2). Review of these parameters found
no statistical differences between upstream and downstream station averages.
5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): From August 2017 through
July 2022, the facility has numerous exceedences in BOD, TRC, Fecal Coliform, Ammonia, DO, pH, and
TSS, resulting in various enforcement actions (Table 3). From September -November 2017 violations were
not acted upon based on Best Professional Judgement in consideration that the facility had recently begun
discharging and to allow time for operations to make adjustments to the system for proper performance.
Most violations were reported from 2018 — 2020.
Table 3. Effluent monitoring violations summary, December 2017-January 2023.
Weekly
Monthly
Daily Min
Notices of
Notices of
Enforcement
Parameter
Average
Average
not
Deficiency
Violations
Cases
Exceedences
Exceedences
Reached
BOD
20
10
NA
0
12
6
Fecal
1
0
NA
0
1
0
Coliform
Ammonia
8
9 1W
NA
0
7
9
DO
NA
NA
0
2
0
H
NA
A
i
0
0
1
TSS
33
T 14
NA
0
25
18
No exceedences were reported since April 2022.
Summarize the compliance record with aquatic toxicity test limits and any second species test results (past
5 years): The facility passed 16 of 16 quarterly chronic toxicity tests from March 2018 through June 2022
as well as all four 2°a species WET tests, sampled in September 2020, March 2021, June and November
2022 plus an extra one in December 2022.
Summarize the results from the most recent compliance inspection: The most recent facility inspection,
conducted on 6/28/2022, deemed the facility in compliance.
Page 6 of 16

To address the compliance situation of the facility, a wastewater management plan special condition with
a compliance schedule will be added to the permit, requiring an NC -licensed engineer evaluate the structural
integrity and operational efficiency of the plant and submit a plan for its optimization.
6. Water Quality -Based Effluent Limitations (WQBELs)
6.1. Dilution and MixingZones
ones
In accordance with 15A NCAC 213.0206, the following streamflows are used for dilution considerations
for development of WQBELs: 1 Q 10 streamflow (acute Aquatic Life); 7Q 10 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): An
Environmental Fluid Dynamics Code (EFDC) hydrodynamic and water quality model was performed in
2010 by Tetra Tech for two discharge phases representing the permitted and expansion flow tiers and
involving the current and a proposed diffuser outfall (for expansion tier) configuration. Dilution factors
considered were 25:1 at the permitted flow (Phase 1), and 16:1 at the expanded flow (Phase 2). Model
results found DO impacts near the outfall to be negligible (up to 0.01 mg/L difference from the baseline),
a significantly lower DO deficit from discharge than that caused by riverine loadings or SOD. Therefore,
no dilution factor was applied to the permit.
If applicable, describe any mixing zones established in accordance with 15A NCAC 2B.0204(b): The
mixing zone from the above EFDC model was at 41.7 m from the outfall, but not applied to the permit due
to model resulting in negligible DO impact. 61
6.2. 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/L 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: Current BOD limits
are based on the recommended BOD limit of 5.0 mg/L for new and expanding discharges in the Cape Fear
River estuary area in the Division's 1996 Cape Fear River Basinwide Water Quality Plan, when the planned
facility was to be built at the confluence of the Cape Fear and Northeast Cape Fear Rivers. These limits
were carried over when the planned facility location moved upstream to its current location in 2011. These
limits are consistent with current rules for protection of PNA waters for new and expanding discharges
(15A NCAC 02B .0224). No changes are proposed.
6.3. 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/L (summer) and 1.8 mg/L (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 µg/L) and capped at 28 µg/L (acute impacts). Due to analytical issues, all TRC values
reported below 50 µg/L are considered compliant with their permit limit.
Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: The current
Ammonia limits of 1.0/3.0 mg/L monthly/weekly average (summer) and 2.0/6.0 mg/L monthly/weekly
average (winter) at both 0.5 and 4.0 MGD flow tiers were originally set to protect the dissolved oxygen
standard. Ammonia was reviewed in the attached Wasteload Allocation (WLA) sheet using both flow tiers
Page 7 of 16

and receiving stream low flow of 7Q 10 = 918 cfs. The resulting allowable concentrations at both flow tiers
are much higher than the current limits. No changes are proposed for Ammonia.
WLA calculations for TRC cap the allowable concentration at 28 µg/L at both flow tiers, the same value as
the current permit limit. The facility uses UV disinfection; the current TRC limit will be maintained in the
permit, to be effective when the facility uses chlorination for disinfection.
6.4. 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 '/2 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.
Effluent hardness data are available among submitted DMR data. Instream (upstream) Hardness monitoring
is provisionally waived in the current permit as the Permittee is a member of a monitoring coalition.
However, instream data collected by the LCFRP do not include Hardness. Upstream hardness sampling
was requested on 9/26/2022 with results received on 10/3/2022. It was later learned that the LCFRP does
include Hardness in its monitoring program, but communicates data to the facility at the end of their regular
reports. The monitoring coalition waiver for instream Hardness monitoring will be maintained in the permit.
A reasonable potential analysis was conducted on effluent toxicant data collected between December 2019
June 2022 via required effluent pollutant scans. Pollutants of concern included toxicants with positive
detections and associated water quality standards/criteria. Based on this analysis, the following permitting
actions are proposed for this permit:
• Effluent Limit with Monitoring. The following parameters will receive a water quality -based
effluent limit (WQBEL) since they demonstrated a reasonable potential to exceed applicable water
quality standards/criteria: None.
• Monitoring Only. The following parameters will receive a monitor -only requirement since they
did not demonstrate reasonable potential to exceed applicable water quality standards/criteria, but
the maximum predicted concentration was > 50% of the allowable concentration:
o Silver at 4.0 MGD —all results non -detects, with three out of four at < 10 µg/L and one at
< 1 µg/L. Chronic allowable concentrations are 35.6 µg/L at 0.5 MGD and 4.5 µg/L at 4.0
MGD.
• 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: All tested.
• POTW Effluent Pollutant Scan Review: Three effluent pollutant scans were evaluated for
additional pollutants of concern.
• 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.
• 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, or the maximum predicted
concentration was > 50% of the allowable concentration: None.
Page 8 of 16

• 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: All tested.
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.
6.5. Toxicity Testing Limitations
Permit limits and monitoring requirements for Whole Effluent Toxicity (WET) have been established in
accordance with Division guidance (per WET Memo, 8/2/1999). Per WET guidance, all NPDES permits
issued to Major facilities or any facility discharging "complex" wastewater (contains anything other than
domestic waste) will contain appropriate WET limits and monitoring requirements, with several exceptions.
The State has received prior EPA approval to use an Alternative WET Test Procedure in NPDES permits,
using single concentration screening tests, with multiple dilution follow-up upon a test failure.
Describe proposed toxicity test requirement: The facility is a POTW with an acute WET limit at 90%
effluent at 0.5 MGD and a chronic limit at 0.7% effluent at 4.0 MGD, sampled quarterly. The WET limit
is based on the very low Instream Waste Concentration (IWC) of 0.08% at 0.5 MGD and 0.67% at 4.0
MGD as calculated from the flow tiers and the summer receiving stream 7Q 10 of 918 cfs (WET Permitting
Limits and Monitoring Requirements guidance memo, 8/2/1999).
6.6. 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/L) 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/L) and/or if any individual value exceeds a TBEL value of 47 ng/L.
Describe proposed permit actions based on mercury evaluation: The current permit has quarterly
monitoring requirements for Total Mercury at both flow tiers, to be analyzed using EPA Method 1631E
(low level). Submitted data from October 2018 — June 2022 were reviewed for TMDL evaluation. No
individual result exceeded the TBEL of 47 ng/L and no annual average exceeded either WQBEL of 7,113
ng/L at 0.5 MGD or 894 ng/L at 4.0 MGD (Table 4). Therefore, quarterly monitoring was removed from
the permit, to be monitored via the three Effluent Pollutant Scans. Because mercury was detected in the
effluent (> 1 ng/L) and the only expansion tier is > 2 MGD, a MMP is required and will be added to the
permit at the 4.0 MGD flow tier only.
Page 9 of 16

Table 4. Mercury Effluent Data Summary.
Parameter
2018
1 2019
1 2020
1 2021
2022
No. of Samples
1
4
4
4
2
Annual Average Conc. ng/L
1.4
0.5
1.7
0.5
0.5
Maximum Conc., ng/L
1.36
0.50
4.80
0.50
0.50
TBEL, ng/L
47
WQBEL, ng/L at 0.5 MGD
7113.10
WQBEL, ng/L at 4.0 MGD
89
6.7. Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation within
this permit: NA.
6.8 Other WQBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: The facility discharges
—38 miles upstream of the mouth of the Cape Fear River with no water supply water downstream. A
Chemical Addendum was requested 10/17/2022. In response, the County submitted a report of PFAS results
of wastewater and sludge from the WTP effluent pond, collected on 10/20/2022 and analyzed by isotope
dilution. About 50,000 gallons/day of WTP effluent is received by the WWTP with the remainder
discharged separately as comingled with WWTP effluent at the outfall. In addition, an effluent sample was
collected on 1/18/2023 and analyzed for 1,4-Dioxane. Results are summarized in Table 5.
Table 5. Emerging Contaminants from the Pender County Utilities Surface Water Treatment Plant,
sampled October 20, 2022. ND = nondetect with level of detection in parentheses.
Parameter 0
Effluent
Sludge,
ng/g
Perfluorooctanoic Acid (PFOA), ng/L
4.49
ND (1.23)
Perfluorooctanosulfonic Acid (PFOS), ng/L
7.48
ND (1.19)
Perfluorooutanesulfonic acid (PFBS), ng/L
5.78
ND (2.16)
The US EPA issued NPDES permitting guidance addressing PFAS in a memo dated 12/5/2022.
Recommendations in the guidance memo applicable to the Melinda B. Knoerzer Adaptive Ecology WTTF
permit involve monitoring, pretreatment, biosolids, and public notice. Monitoring of effluent, influent and
biosolids is recommended at frequencies of at least quarterly, using the EPA Draft Method 1633 with results
submitted via DMRs. However, based on the location of the discharge with no downstream water supply
waters and the industrial input profile (a fish processing facility), PFAS monitoring will be added to the
permit at a 2/year frequency. Until the final method is approved, as it may involve changes to the parameter
list, the proposed quarterly PFAS sampling requirement will include 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 CFR 136 published in the Federal Register. This date may be extended
upon request and if there are no NC -certified labs.
The 1/8/2023 effluent's 1,4-Dioxane concentration was 2.11 µg/L < 50% of the allowable concentrations
of 420 mg/L at 0.5 MGD and 52.6 mg/L at 4.0 MGD, based on annual average stream flow of 8,142 cfs
and the Instream Target Value of 80 µg/L. Based on the low effluent value and that the discharge flows
Page 10 of 16

ultimately to the Atlantic Ocean with no water supply waters downstream, monitoring for 1,4-Dioxane is
not needed and will not be added to the permit.
If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall
comply with in order to protect the designated waterbody: The receiving water is classified a PNA, a type
of HQW, resulting in a 50% buffer applied to metals analyzed by RPA. Only quarterly monitoring for Silver
is required from RPA results.
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: Two compliance schedules will be
added to the permit:
• A management schedule will be added to address the chronic operational issues for conventional
parameters (BOD, TSS, Ammonia).
• A compliance schedule will be added for the Permittee to develop a pretreatment program in a
timely manner. ,
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
BOD51TSS for Monthly Average, and 45 mg/L for BOD51TSS for Weekly Average). YES.
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA.
Are 85% removal requirements for BOD51TSS included in the permit? YES.
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 213.0201. 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
Page 11 of 16

may be relaxed (e.g., based on new information, increases in production may warrant less stringent TBEL
limits, or WQBELs may be less stringent based on updated RPA or dilution).
Are any effluent limitations less stringent than previous permit (YES/NO): NO.
If YES, confirm that antibacksliding provisions are not violated: NA.
10. Monitoring Requirements
Monitoring frequencies for NPDES permitting are established in accordance with the following regulations
and guidance: 1) State Regulation for Surface Water Monitoring, 15A NCAC 213.0500; 2) NPDES
Guidance, Monitoring Frequency for Toxic Substances (7/15/2010 Memo); 3) NPDES Guidance, Reduced
Monitoring Frequencies for Facilities with Superior Compliance (10/22/2012 Memo); 4) Best Professional
Judgement (BPJ). Per US EPA (Interim Guidance, 1996), monitoring requirements are not considered
effluent limitations under Section 402(o) of the Clean Water Act, and therefore anti -backsliding
prohibitions would not be triggered by reductions in monitoring frequencies.
The current permit lists all conventional parameters at 0.5 MGD with monitoring frequencies of 3/week,
more frequent than weekly as required by 15A NCAC 2B .0508 for Grade II facilities. Monitoring
frequencies at 0.5 MGD will be adjusted to match those required by the rule.
For instream monitoring, refer to Section 4.
11. Electronic Reporting Requirements
The US EPA NPDES Electronic Reporting Rule was finalized on December 21, 2015. Effective December
21, 2016, NPDES regulated facilities are required to submit Discharge Monitoring Reports (DMRs)
electronically. While NPDES regulated facilities would initially be required to submit additional NPDES
reports electronically effective December 21, 2020, EPA extended this deadline from December 21, 2020,
to December 21, 2025. The current compliance date, effective January 4, 2021, was extended as a final
regulation change published in the Federal Register in November 2, 2020 This permit contains the
requirements for electronic reporting, consistent with Federal requirements.
12. Summary of Proposed Permitting Actions
Table 6. Current Permit Conditions and Proposed Changes at 0.5 and 4.0 MGD flow tiers.
Parameter
Current Permit 1
Proposed Change
Basis for Condition/Change
Melinda B. Knoerzer
Melinda B. Knoerzer
Facility Name
Adaptive Ecosystem
WWTF
Requested by Owner/Operator
WWTF
Flow
MA = 0.5 / 4.0 MGD
No change
15A NCAC 02B .0400 at seq., 02B
.0500 et seq.
Page 12 of 16

Parameter
Current Permit 1
Proposed Change
Basis for Condition/Change
Summer
MA = 5.0 mg/L
WA = 7.5 mg/L
No change in limits.
WQBEL. Based on protection of
Winter
PNA waters for new and expanding
BOD5
MA = 10.0 mg/L
Reduce monitoring at
discharges. 15A NCAC 02B .0224.
WA = 15.0 mg/L
0.5 MGD to weekly.
Monitoring requirements 15A NCAC
Monitor
02B .0500.
3/week at 0.5 MGD
Daily at 4.0 MGD
MA = 10.0 mg/L
No change in limits.
WQBEL. Based on protection of
WA = 15.0 mg/L
PNA waters for new and expanding
TSS
Monitor
Reduce monitoring at
discharges. 15A NCAC 02B .0224.
3/week at 0.5 MGD
0.5 MGD to weekly.
Monitoring requirements 15A NCAC
Daily at 4.0 MGD
B .0500.
Summer
MA = 1.0 mg/L
WA = 3.0 mg/L
No change in limits.
WQBEL. Based on protection of
Winter
PNA waters for new and expanding
NH3-N
MA = 2.0 mg/L
Reduce monitoring at
discharges. 15A NCAC 02B .0224.
WA = 6.0 mg/L
0.5 MGD to weekly.
Monitoring requirements 15A NCAC
Monitor
02B .0500.
3/week at 0.5 MGD
Daily at 4.0 MGD
No change in limits.
Reduce monitoring at
DM = 28 µg/L
0.5 MGD to weekly.
Total Residual
3/week at 0.5 MGD
WQBEL. State WQ acute standard,
Chlorine (TRC)
Daily at 4.0 MGD
Modify footnote to
15A NCAC 2B .0200, .0500.
"when using
chlorination for
disinfection" for
clarity.
DM > 6 mg/L
No change in limits.
WQBEL. Based on protection of
Dissolved Oxygen
Monitor
PNA waters for new and expanding
(DO)
3/week at 0.5 MGD
Reduce monitoring at
discharges. 15A NCAC 02B .0224.
Daily at 4.0 MGD
0.5 MGD to weekly.
Monitoring requirements 15A NCAC
02B .0500.
MA = 200 A 00 mL
No change in limits.
WA — 400 /100 mL
WQBEL. State WQ standard, 15A
Fecal Coliform
Monitor
Reduce monitoring at
NCAC 2B .0200, .0500.
3/week at 0.5 MGD
0.5 MGD to weekly.
Daily at 4.0 MGD
Page 13 of 16

Parameter
Current Permit 1
Proposed Change
Basis for Condition/Change
Monitor influent
(post equalization)
& effluent monthly;
visually inspect
State WQ reporting requirements
Oil & Grease
receiving stream
No change
15A NCAC 213 .0500. Industrial user
immediately
is a fish -packing facility.
downstream.
Reopener special
condition.
Temperature
Monitor
3/week at 0.5 MGD
Monitor daily at 0.5
State WQ reporting requirements
Daily at 4.0 MGD
and 4.0 MGD
15A NCAC 213.0500.
Conductivity
Monitor
3/week at 0.5 MGD
Reduce monitoring at
State WQ reporting requirements
Daily at 4.0 MGD
0.5 MGD to weekly.
15A NCAC 213.0500.
6 — 9 SU
No change in limits,
p H
Monitor
WQBEL. State WQ standard, 15A
3/week at 0.5 MGD
Reduce monitoring at
NCAC 2B .0200, .0500.
Daily at 4.0 MGD
0.5 MGD to weekly.
Monitor
Quarterly at 0.5
State WQ reporting requirements
Total Nitrogen
MGD
No change
15A NCAC 2B
Monthly at 4.0
.0500.
MGD
TIN
Monitor monthly at
Add quarterly
at 0.5
State WQ reporting requirements
4.0 MGD
MGDoring
15A NCAC 213.0500.
NO3-N+NO2-N
Monitor monthly at
Add quarterly
at 0.5
State WQ reporting requirements
4.0 MGD
MGDoring
15A NCAC 213.0500.
Monitor
Quarterly at 0.5
Total Phosphorus
MGD
No change
State WQ reporting requirements
Monthly at 4.0
15A NCAC 213.0500.
MGD
Acute Fathead
WQBEL. No toxics in toxic
Toxicity Test at 0.5
Minnow Pass/Fail
no
No change
amounts. 15A NCAC 2B.0200 and
MGD
at effluent.
15A NCAC 2B.0500.
Monitor quarterly
Chronic
Toxicity Test at 4.0
Ceriodaphnoia dubia
WQBEL. No toxics in toxic
MGD
limit at 0.7 /o
No change
amounts. 15A NCAC 213.0200 and
effluent.
15A NCAC 213.0500.
Monitor quarterly
Page 14 of 16

Parameter
Current Permit 1
Proposed Change
Basis for Condition/Change
Hardness -dependent dissolved metals
Effluent and
water quality standards, approved in
Total Hardness
instream, upstream
No change
2016, need effluent hardness data for
of discharge
calculations of permit limitations.
Monitor quarterly
Monitoring coalition will not sample
for Hardness.
Add quarterly
Results nondetect at levels higher
Total Silver
No requirement
monitoring at 4.0
than allowable concentrations via
MGD
Reasonable Potential Analysis.
Remove quarterly
monitoring;
Total Mercury
Monitor quarterly
monitor via
Effluent Pollutant
2012 Statewide Mercury TMDL
Scans.
Implementation
Add MMP at 4.0
MGD
Add 2/year
monitoring with
Detection of PFAS concentrations in
PFAS
No requirement
delayed
WTP effluent that is received by the
implementation
WWTF.
To address the facility's high
Wastewater
No requirement
Add special
numbers of violations of BOD, TSS
Management Plan
condition
and Ammonia limits in its short
history.
Finding of the facility's primary
Pretreatment Program
No requirement
Add compliance
industrial user contributing > 5% of
schedule
flow, meeting the criteria for SUI
needing pretreatment.
Effluent Pollutant
Monitor three years
Update sample years:
40 CFR 122
Scan
per permit cycle
2024, 2025, 2026.
Electronic Reporting
Special Condition
Update language
In accordance with EPA Electronic
Reporting Rule 2015.
Footnote
1. MGD = Million gallons per day; MA = Monthly Average; WA = Weekly Average; DM = Daily Maximum;
QA = Quarterly Average.
13. Public Notice Schedule:
Permit to Public Notice: xx/xx/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.
Page 15 of 16

14. NPDES Division Contact:
If you have questions regarding any of the above information or on the attached permit, please contact Gary
Perlmutter at [phone] or via email at gary_perlmutter(acr�,ncdenr.gov.
15. Fact Sheet Addendum (if applicable):
Were there any changes made since the Draft Permit was public noticed (Yes/No): No.
If Yes, list changes and their basis below:
16. Fact Sheet Attachments (if applicable):
• Effluent Pollutant Scans
• 2nd Species Toxicity test reports
• Name change request
• NPDES PT POCs review form
• NC 2022 303(d) list, p. 20
• Benthos Site Details page
• NC 2022 Integrated Report, pp. 190-191
• Correspondence with ORC re: sampling relocation
• Monitoring Report (MR) Violations page
• WET testing and Self -Monitoring Summary, page 82
• Compliance Inspection Report, 6/28/2022
• 1996 Cape Fear River Basin Plan, p. 6-42
• NH3/TRC WLA Calculations sheet
• Freshwater RPA spreadsheet
• Mercury WQBEL/TBEL Evaluation data
• Chemical Addendum
Page 16 of 16

F"07
Cnviroche]m
ANALYTICAL & CONSULTING CHEMISTS
Pender County Utility Operations
Post Office Box 995
Burgaw NC 28425
Attention: Kurt Lonander
Lab ID Sample ID:
22-25219 Site: Effluent - Composite
Test
Antimony
Copper
Lead
Nickel
Selenium
Silver
Thallium
Zinc
Arsenic
Beryllium
Cadmium
Chromium
Ammonia Nitrogen
Total Hardness as CaCO3
Total Dissolved Solids (TDS)
Total Phosphorus
Nitrate Nitrogen (Calc)
Nitrite Nitrogen
Nitrate+N itrite-Nitrogen
Nitrate Nitrogen
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN)
Total Nitrogen
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Date of Report: Jul 07, 2022
Customer PO #:
Customer ID: 08100095
Report #: 2022-10427
Project ID: Pollutant Scan
Collect Date/Time Matrix
6/7/2022 9:00 AM Water
Method
EPA 200.7
EPA 200.7, Rev 4.4, 1994
EPA 200.7, Rev 4.4, 1994
EPA 200.7, Rev 4.4, 1994
EPA 200.7, Rev 4A, 1994
EPA 200.7, Rev 4.4, 1994
EPA 200.7, Rev 4.4, 1994
EPA 200.7, Rev 4A, 1994
EPA 200.7, Rev. 4.4, 1994
EPA 200.7, Rev. 4.4, 1994
EPA 200.7, Rev. 4.4, 1994
EPA 200.7, Rev. 4.4, 1994
EPA 350.1, Rev. 2.0, 1993
SM 2340 B-2011
SM 2540 C-2015
SM 4500 P (F-H)-2011
EPA 353.2, Rev. 2.0, 1993
EPA 353.2, Rev. 2.0, 1993
Subtraction Method
EPA 351.2, Rev. 2.0, 1993
Total Nitrogen
Results
Sampled by
Kurt Lonander
Date Analyzed
<0.01 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
0.010 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
0.010 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
<0.01 mg/L
06/13/2022
< 0.2 mg/L
06/08/2022
54.0 mg/L
06/09/2022
1980 mg/L
06/07/2022
0.05 mg/L
06/11 /2022
0.05 mg/L
06/07/2022
3.89 mg/L
06/09/2022
3.84 mg/L
06/20/2022
0.9 mg/L 06/17/2022
4.8 mg/L 06/20/2022
Report #:: 2022-10427 Page 1 of 5

Environmental Chemists,
Inc.
envirochem6602
Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab . 910.392.4424 Fax
AA,255-A
710 Bowsertown Road, Manteo, NC 27954 . 252.473.5702 Lab/Fax
Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS
[e-mail]
Pender County Utility Operations
Date of Report: Jul 07, 2022
Post Office Box 995
Customer PO #:
Burgaw NC 28425
Customer ID: 08100095
Attention: Kurt Lonander
Report #: 2022-10427
Project ID: Pollutant Scan
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
22-25220 Site: Effluent - Grab
6/7/2022 9:27 AM Water KurtLonander
Test
Method Results Date Analyzed
LL Mercury
EPA 1631e
<0.500 ng/L
06/20/2022
Oil & Grease (O&G)
EPA 1664 Rev. B <5.0 mg/L
06/10/2022
Cyanide
EPA 335.4,
Rev. 1.0, 1993 < 0.005 mg/L
06/13/2022
Inorganic Phenols
EPA420.4,
Rev 1.0,1993 0.009 mg/L
06/14/2022
1, 1, 1 -Trichloroethane
EPA 624
<0.5 pg/L
06/09/2022
1,1,2,2-Tetrach loroethane
EPA 624
<0.5 pg/L
06/09/2022
1,1,2-Trichloroethane
EPA 624
<0.5 Mfg/L
06/09/2022
1,1-Dichloroethane
EPA 624
<0.5 pg/L
06/09/2022
1,1-Dichloroethene
EPA 624
<0.5 pg/L
06/09/2022
1,2-Dichlorobenzene
EPA 624
<0.5 pg/L
06/09/2022
1,2-Dichloroethane
EPA 624
<0.5 pg/L
06/09/2022
1,2-Dichloropropane
EPA 624
<0.5 pg/L
06/09/2022
1,3-Dichlorobenzene
EPA 624
<0.5 pg/L
06/09/2022
1,4-Dichlorobenzene
EPA 624
<0.5 pg/L
06/09/2022
Acrolein
EPA 624
<5 pg/L
06/09/2022
Acrylonitrile
EPA 624
<5 pg/L
06/09/2022
Benzene
EPA 624
<0.5 pg/L
06/09/2022
Bromodichloromethane
EPA 624
0.510 pg/L
06/09/2022
Bromoform
EPA 624
<0.5 pg/L
06/09/2022
Bromomethane
EPA 624
<0.5 pg/L
06/09/2022
Carbon Tetrachloride
EPA 624
<0.5 pg/L
06/09/2022
Chlorobenzene
EPA 624
<0.5 pg/L
06/09/2022
Chloroethane
EPA 624
<0.5 pg/L
06/09/2022
Chloroform
EPA 624
0.830 pg/L
06/09/2022
Chloromethane
EPA 624
<0.5 pg/L
06/09/2022
cis-1,3-Dichloropropene
EPA 624
<0.5 pg/L
06/09/2022
Report #:: 2022-10427
Page 2 of 5

Environmental Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
sM 255-A Wilmington Highway, Jacksonville, NC 28540 . 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS info(a),environmentalchemists.com
Pender County Utility Operations
Date of Report: Jul 07, 2022
Post Office Box 995
Customer PO #:
Burgaw NC
28425
Customer ID: 08100095
Attention: Kurt Lonander
Report #: 2022-10427
Project ID: Pollutant Scan
Dibromochloromethane
EPA 624
0.770 pg/L
06/09/2022
Ethylbenzene
EPA 624
<0.5 pg/L
06/09/2022
M+P Xylene
EPA 624
<1.0 pg/L
06/09/2022
Methylene chloride
EPA 624
<0.5 pg/L
06/09/2022
ortho-Xylene
EPA 624
<0.5 pg/L
06/09/2022
Tetrachloroethene
EPA 624
<0.5 pg/L
06/09/2022
Toluene
EPA 624
<0.5 pg/L
06/09/2022
Trans-1,2-Dichloroethene
EPA 624
<0.5 pg/L
06/09/2022
trans-1,3-Dichloropropene
EPA 624
<0.5pg/L
06/09/2022
Trichloroethene
EPA 624
<0.5 pg/L
06/09/2022
Trichlorofluoromethane
EPA 624
<0.5 pg/L
06/09/2022
Vinyl chloride
EPA 624
<0.5 pg/L
06/09/2022
2,4,6-Trichlorophenol
EPA 625
<5 pg/L
06/08/2022
2,4-Dichlorophenol
EPA 625
<5 pg/L
06/08/2022
2,4-Dimethylphenol
EPA 625
<5 pg/L
06/08/2022
2,4-Dinitro phenol
EPA 625
<25 pg/L
06/08/2022
2-Chlorophenol
EPA 625
<5 pg/L
06/08/2022
2-Methyl-4,6-dinitrophenol
EPA 625
<25 pg/L
06/08/2022
2-Nitrophenol
EPA 625
<25 pg/L
06/08/2022
4-Chloro-3-methylphenol
EPA 625
<5 pg/L
06/08/2022
4-Nitrophenol
EPA 625
<25 pg/L
06/08/2022
Pentachlorophenol
EPA 625
<25 pg/L
06/08/2022
Phenol
EPA 625
<5 pg/L
06/08/2022
1,2 Diphenylhydrazine
EPA 625
<5 pg/L
06/08/2022
1,2,4-Trichlorobenzene
EPA 625
<5 pg/L
06/08/2022
1,2-Dichlorobenzene
EPA 625
<5 pg/L
06/08/2022
1, 3-Dichlorobenzene
EPA 625
<5 pg/L
06/08/2022
1,4-Dichlorobenzene
EPA 625
<5 pg/L
06/08/2022
1-Methylnaphthalene
EPA 625
<5 pg/L
06/08/2022
2,4-Dinitrotoluene
EPA 625
<5 pg/L
06/08/2022
Report # 2022-10427 Page 3 of 5

F"Ww' -- -:",qql Environmental Chemists, Inc.
envirochem A 6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab . 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 e 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 . 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
Pender County Utility Operations Date of Report: Jul 07, 2022
Post Office Box 995 Customer PO #:
Burgaw NC 28425 Customer ID: 08100095
Attention: Kurt Lonander Report #: 2022-10427
Project ID: Pollutant Scan
2,6-Dinitrotoluene
EPA 625
<5 pg/L
06/08/2022
2-Chloronaphthalene
EPA 625
<5 pg/L
06/08/2022
2-Methylnaphthalene
EPA 625
<5 pg/L
06/08/2022
3,3'-Dichlorobenzidine
EPA 625
<10 pg/L
06/08/2022
4-Bromophenyl phenyl ether
EPA 625
<5 pg/L
06/08/2022
4-Chlorophenyl phenyl ether
EPA 625
<5 pg/L
06/08/2022
Acenaphthene
EPA 625
<5 pg/L
06/08/2022
Acenaphthylene
EPA 625
<5 pg/L
06/08/2022
Anthracene
EPA 625
<5 pg/L
06/08/2022
Benzidine
EPA 625
<10 pg/L
06/08/2022
Benzo [a]pyrene
EPA 625
<5 pg/L
06/08/2022
Benzo(a)anthracene
EPA 625
<5 pg/L
06/08/2022
Benzo(b)fluoranthene
EPA 625
<5 pg/L
06/08/2022
Benzo(g, h, i)perylene
EPA 625
<5 pg/L
06/08/2022
Benzo(k)fluoranthene
EPA 625
<5 pg/L
06/08/2022
Bis ( chloromethyl ) ether
EPA 625
<5pg/L
06/08/2022
Bis(2-Chloroethoxy)methane
EPA 625
<5 pg/L
06/08/2022
Bis(2-Chloroethyl)ether
EPA 625
<5 pg/L
06/08/2022
Bis(2-Chloroisopropyl)ether
EPA 625
<5pg/L
06/08/2022
B is(2-ethyl hexyl) phtha late
EPA 625
<5 pg/L
06/08/2022
Butylbenzylphthalate
EPA 625
<5 pg/L
06/08/2022
Chrysene
EPA 625
<5 pg/L
06/08/2022
Dibenzo(a,h)anthracene
EPA 625
<5 pg/L
06/08/2022
Diethylphthalate
EPA 625
<5 pg/L
06/08/2022
Dimethylphthalate
EPA 625
<5 pg/L
06/08/2022
Di-n-Butylphthalate
EPA 625
<5 pg/L
06/08/2022
Di-n-Octylphthalate
EPA 625
<5 pg/L
06/08/2022
Fluoranthene
EPA 625
<5 pg/L
06/08/2022
Fluorene
EPA 625
<5 pg/L
06/08/2022
Hexachlorobenzene
EPA 625
<5 pg/L
06/08/2022
Report #. 2022-10427
Page 4 of 5

Environmental Chemists,
Inc.
envirochem6602
Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
AM
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS
infoCaenvironmentalchemists.com
Pender County Utility Operations
Date of Report: Jul 07, 2022
Post Office Box 995
Customer PO #:
Burgaw NC 28425
Customer ID: 08100095
Attention: Kurt Lonander
Report #: 2022-10427
Project ID: Pollutant Scan
Hexachlorobutadiene
EPA 625
<5 pg/L
06/08/2022
Hexachlorocyclopentadiene
EPA 625
<25 pg/L
06/08/2022
Hexachloroethane
EPA 625
<5 pg/L
06/08/2022
Indeno(1,2,3-cd)pyrene
EPA 625
<5 pg/L
06/08/2022
Isophorone
EPA 625
<5 Ng/L
06/08/2022
Naphthalene
EPA 625
<5 pg/L
06/08/2022
Nitrobenzene
EPA 625
<5 pg/L
06/08/2022
N-nitroso-dimethylamine(NDMA)
EPA 625
<5pg/L
06/08/2022
N-Nitroso-di-n-propylamine
EPA 625
<5pg/L
06/08/2022
N-Nitroso-diphenylamine
EPA 625
<5 pg/L
06/08/2022
Phenanthrene
EPA 625
<5 pg/L
06/08/2022
Pyrene
EPA 625
<5 pg/L
06/08/2022
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
22-25221 Site: Field Blank
6/7/2022 9:28 AM Water Kurt Lonander
Test
Method Results Date Analyzed
LL Mercury
EPA 1631e
<0.500 ng/L
06/20/2022
Comment:
Reviewed by:
Report #:: 2022-10427 Page 5 of 5

Mercury (CVAFS)
Client: Environmental Chemist, Inc. Laboratory ID:XF10023-003
Description: 22-25220 Matrix: Aqueous
Date Sampled:06/07/2022 0927
)ate Received: 06/1012022
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 06/20/2022 0608 JMH 06/17/2022 0851 45280
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E ND 0.500 ng/L 1
LOQ = Limit of Quantitation 6 = Detected in the method blank E = Quantitation of compound exceeded the calibration range Q = Surrogate failure
ND = Not detected at or above the LOD N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www pacelabs.com
Page 7 of 24
22 - 1()yZ1

Mercury (CVAFS)
Client: Environmental Chemist, Inc. Laboratory ID:XF10023-004
Description: 22-25221 Matrix: Aqueous
Date Sampled:06/07/2022 0928
Date Received:06110/2022
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 06/20/2022 0613 JMH 06/17/2022 0851 45280
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury (CVAFS) 7439-97-6 1631 E ND 0.500 ng/L 1
LOO = Limit of Quantitation 8 = Detected in the method blank E = Quantitation of compound exceeded the calibration range Q = Surrogate failure
NO = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pacelabs.com
Page 8 of 24

Environmental Chemist, Inc., Wilmington, INC Lab #94
6602 Windmill Way
Wilmington, NC 28405
910.392.0223
Sample Receipt Checklist
Client. U. Date: � o�a Report Number: Q a --10 C;0
Receipt of sample: ECHEM Pickup Client Delivery ❑
UPS ❑ FeclEx ❑ Other ❑
❑ YES
10 NO
2q N/A
1. Were custody seals present on the cooler?
❑ YES
I0 NO
I Ck N/A
12. If custody seals were present, were they intact/unbroken?
Original temperature upon receipt °C Corrected temperature upon receipt °C
How temperature taken: ❑ Temperature Blank V Against Bottles
IR Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor °C: 0.0
❑ YES
I0 NO
3. If temperature of cooler exceeded 6°C, was Project Mgr./QA notified?
YES
❑ NO
4. Were proper custody procedures (relinquished/received) followed?
J�1 YES
❑ NO
5. Were sample ID's listed on the COC?
YES
❑ NO
6. Were samples ID's listed on sample containers?
LX YES
❑ NO
7. Were collection date and time listed on the COC?
YES
❑ NO
8. Were tests to be performed listed on the COC?
YES
❑ NO
9. Did samples arrive in proper containers for each test?
I� YES
❑ NO
90 Did samples arrive in good condition for each t-st?
)10 YES
❑ NO
11. Was adequate sample volume availableT
Uk YES
❑ NO
12. Were samples received within proper holding time for requested tests?
YES
❑ NO
13. Were acid preserved samples received at a pH of <2?
YES
❑ NO
14. Were cyanide samples received at a pH >12?
❑ YES
❑ NO
15. Were sulfide samples received at a pH >9?
YES
❑ NO
16. Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L? **
YES
❑ NO
17. Were Sulfide/Cyanide received at a chlorine residual of <0.5 m/L?
❑ YES
❑ NO 118.
Were orthophosphate samples filtered in the field within 15 minutes?
* TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
** Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
Sample Preservation: (Must be completed for any sample(s) incorrectly preserved or with headspace)
Sample(s) were received incorrectly preserved and were adjusted accordingly
by adding (circle one): HZSO4 HNO3 HCI NaOH
Time of preservation: If more than one preservative is needed, notate in comments below
Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new samp'e or
notify the state lab if directed to analyzed by the customer. Who was notified, date and time:
Volatiles Sample(s) were received with headspace
COMMENTS:
DOC. QA.002 Rev 1

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r7.-7qq1 Environmental Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab ► 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 ► 252.473.5702 Lab/Fax
sM 255-A Wilmington Highway, Jacksonville, NC 28540 ■ 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
Pender County Utility Operations
Post Office Box 995
Burgaw NC 28425
Attention: Kurt Lonander
Revised Report: Sep 04, 2020
Original Report Date: Jul 23, 2020
Report #: 2020-11094
Customer ID: 08100095
Project ID: Pollutant Scan
Lab ID Sample ID:
20-27894 Site: Effluent - Composite
Test
Collect Date/Time
7/7/2020 9:00 AM
Method
Matrix Sampled by
Water Kurt Lonander
Results Date Analyzed
Antimony
EPA 200.7
<0.01 mg/L
07/09/2020
Arsenic
EPA 200.7
<0.01 mg/L
07/09/2020
Beryllium
EPA 200.7
<0.01 mg/L
07/09/2020
Cadmium
EPA 200.7
<0.01 mg/L
07/09/2020
Chromium
EPA 200.7
<0.01 mg/L
07/09/2020
Copper
EPA 200.7
<10 mg/L
07/09/2020
Lead
EPA 200.7
<0.01 mg/L
07/09/2020
Nickel
EPA 200.7
<0.01 mg/L
07/09/2020
Selenium
EPA 200.7
<0.01 mg/L
07/09/2020
Silver
EPA 200.7
<0.01 mg/L
07/09/2020
Thallium
EPA 200.7
<0.01 mg/L
07/09/2020
Zinc
EPA 200.7
0.013 mg/L
07/09/2020
Ammonia Nitrogen
EPA 350.1
0.4 mg/L
07/10/2020
Total Hardness
SM 2340 C
34 mg/L
07/08/2020
Total Dissolved Solids (TDS)
SM 2540 C
739 mg/L
07/07/2020
Total Phosphorus
SM 4500 P F
0.12 mg/L
07/14/2020
Nitrate Nitrogen (Calc)
Nitrite Nitrogen EPA 353.2
0.03 mg/L
07/08/2020
Nitrate Nitrogen Subtraction Method
7.37 mg/L
07/20/2020
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN) EPA 351.2
< 0.5 mg/L
07/14/2020
Nitrate+Nitrite-Nitrogen EPA353.2
7.40mg/L
07/17/2020
Total Nitrogen Total Nitrogen
7.4 mg/L
07/20/2020
Report #.: 2020-11094 Page 1 of 5

77 Environmental Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
Pender County Utility Operations
Post Office Box 995
Burgaw NC 28425
Attention: Kurt Lonander
Revised Report: Sep 04, 2020
Original Report Date: Jul 23, 2020
Report #: 2020-11094
Customer ID: 08100095
Project ID: Pollutant Scan
Lab ID Sample ID:
20-27895 Site: Effluent - Grab
Test
Collect Date/Time
7/7/2020 9:00 AM
Method
Matrix Sampled by
Water Kurt Lonander
Results Date Analyzed
LL Mercury
EPA 1631e
<0.500 ng/L
07/20/2020
Oil & Grease (O&G)
EPA 1664
<5.0 mg/L
07/15/2020
Cyanide
EPA 335.4
<0.005 mg/L
07/09/2020
Inorganic Phenols
EPA420A
<0.005mg/L
07/13/2020
2-Chloroethyl Vinyl Ether
EPA 624
<5.0 pg/L
07/09/2020
1,1,1-Trichloroethane
EPA 624
<0.5 pg/L
07/09/2020
1,1,2,2-Tetrachloroethane
EPA 624
<0.5 pg/L
07/09/2020
1,1,2-Trichloroethane
EPA 624
<0.5 pg/L
07/09/2020
1,1-Dichloroethane
EPA 624
<0.5 pg/L
07/09/2020
1,1-Dichloroethene
EPA 624
<0.5 pg/L
07/09/2020
1,2-Dichlorobenzene
EPA 624
<0.5 pg/L
07/09/2020
1,2-Dichloroethane
EPA 624
<0.5 pg/L
07/09/2020
1,2-Dichloropropane
EPA 624
<0.5 pg/L
07/09/2020
1,3-Dichlorobenzene
EPA 624
<0.5 pg/L
07/09/2020
1,4-Dichlorobenzene
EPA 624
<0.5 pg/L
07/09/2020
Acrolein
EPA 624
<5 pg/L
07/09/2020
Acrylonitrile
EPA 624
<5 pg/L
07/09/2020
Benzene
EPA 624
<0.5 pg/L
07/09/2020
Bromodichloromethane
EPA 624
<0.5 pg/L
07/09/2020
Bromoform
EPA 624
<0.5 pg/L
07/09/2020
Bromomethane
EPA 624
<0.5 pg/L
07/09/2020
Carbon Tetrachloride
EPA 624
<0.5 pg/L
07/09/2020
Chlorobenzene
EPA 624
<0.5 pg/L
07/09/2020
Chloroethane
EPA 624
<0.5 pg/L
07/09/2020
Chloroform
EPA 624
<0.5 pg/L
07/09/2020
Chloromethane
EPA 624
<0.5 pg/L
07/09/2020
Rennrt # • 2020-11094
Page 2 of 5

enviroehem
ANALYTICAL & CONSULTING CHEMISTS
Pender County Utility Operations
Post Office Box 995
Burgaw NC 28425
Attention: Kurt Lonander
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Revised Report:
Sep 04, 2020
Original Report Date: Jul 23, 2020
Report #:
2020-11094
Customer ID:
08100095
Project ID:
Pollutant Scan
cis-1,3-Dichloropropene
EPA 624
<0.5 pg/L
07/09/2020
Dibromochloromethane
EPA 624
<0.5 pg/L
07/09/2020
Ethylbenzene
EPA 624
<0.5 pg/L
07/09/2020
M+P Xylene
EPA 624
<1.0 pg/L
07/09/2020
Methylene chloride
EPA 624
<0.5 pg/L
07/09/2020
ortho-Xylene
EPA 624
<0.5 pg/L
07/09/2020
Tetrachloroethene
EPA 624
<0.5 pg/L
07/09/2020
Toluene
EPA 624
<0.5 pg/L
07/09/2020
Trans-1,2-Dichloroethene
EPA 624
<0.5 pg/L
07/09/2020
trans-1,3-Dichloropropene
EPA 624
<0.5pg/L
07/09/2020
Trichloroethene
EPA 624
<0.5 pg/L
07/09/2020
Trichlorofluoromethane
EPA 624
<0.5 pg/L
07/09/2020
Vinyl chloride
EPA 624
<0.5 pg/L
07/09/2020
2,4,6-Trichlorophenol
EPA 625
<5.56 pg/L
07/08/2020
2,4-Dichlorophenol
EPA 625
<5.56 pg/L
07/08/2020
2,4-Dimethylphenol
EPA 625
<5.56 pg/L
07/08/2020
2,4-Dinitrophenol
EPA 625
<27.8 pg/L
07/08/2020
2-Chlorophenol
EPA 625
<5.56 pg/L
07/08/2020
2-Methyl-4,6-dinitrophenol
EPA 625
<27.8 pg/L
07/08/2020
2-Nitrophenol
EPA 625
<27.8 pg/L
07/08/2020
4-Chloro-3-methylphenol
EPA 625
<5.56 pg/L
07/08/2020
4-Nitrophenol
EPA 625
<27.8 pg/L
07/08/2020
Pentachlorophenol
EPA 625
<27.8 pg/L
07/08/2020
Phenol
EPA 625
<5.56 pg/L
07/08/2020
1,2 Diphenylhydrazine
EPA 625
<5.56 pg/L
07/08/2020
1,2,4-Trichlorobenzene
EPA 625
<5.56 pg/L
07/08/2020
1,2-Dichlorobenzene
EPA 625
<5.56 pg/L
07/08/2020
1,3-Dichlorobenzene
EPA 625
<5.56 pg/L
07/08/2020
1,4-Dichlorobenzene
EPA 625
<5.56 pg/L
07/08/2020
Rannrt g" gngn-11094 Page 3 of 5

enviroehem
ANALYTICAL & CONSULTING CHEMISTS
Pender County Utility Operations
Post Office Box 995
Burgaw NC 28425
Attention: Kurt Lonander
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ■ 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
[e-mail]
Revised Report: Sep 04, 2020
Original Report Date: Jul 23, 2020
Report #: 2020-11094
Customer ID: 08100095
Project ID: Pollutant Scan
1-Methylnaphthalene
EPA 625
<5.56 pg/L
07/08/2020
2,4-Dinitrotoluene
EPA 625
<5.56 pg/L
07/08/2020
2,6-Dinitrotoluene
EPA 625
<5.56 pg/L
07/08/2020
2-Chloronaphthalene
EPA 625
<5.56 pg/L
07/08/2020
2-Methyl naphthalene
EPA 625
<5.56 pg/L
07/08/2020
3,3'-Dichlorobenzidine
EPA 625
<11.1 pg/L
07/08/2020
4-Bromophenyl phenyl ether
EPA 625
<5.56 pg/L
07/08/2020
4-Chlorophenyl phenyl ether
EPA 625
<5.56 pg/L
07/08/2020
Acenaphthene
EPA 625
<5.56 pg/L
07/08/2020
Acenaphthylene
EPA 625
<5.56 pg/L
07/08/2020
Anthracene
EPA 625
<5.56 pg/L
07/08/2020
Benzidine
EPA 625
<11.1 pg/L
07/08/2020
Benzo [a]pyrene
EPA 625
<5.56 pg/L
07/08/2020
Benzo(a)anthracene
EPA 625
<5.56 pg/L
07/08/2020
Benzo(b)fluoranthene
EPA 625
<5.56 pg/L
07/08/2020
Benzo(g,h,i)perylene
EPA 625
<5.56 pg/L
07/08/2020
Benzo(k)fluoranthene
EPA 625
<5.56 pg/L
07/08/2020
Bis ( chloromethyl ) ether
EPA 625
<5.56 pg/L
07/08/2020
B is(2-C h loroethoxy) methane
EPA 625
<5.56 pg/L
07/08/2020
Bis(2-Chloroethyl)ether
EPA 625
<5.56 pg/L
07/08/2020
Bis(2-Chloroisopropyl)ether
EPA 625
<5.56 pg/L
07/08/2020
Bis(2-ethylhexyl)phthalate
EPA 625
<5.56 pg/L
07/08/2020
Butylbenzylphthalate
EPA 625
<5.56 pg/L
07/08/2020
Chrysene
EPA 625
<5.56 pg/L
07/08/2020
Dibenzo(a,h)anthracene
EPA 625
<5.56 pg/L
07/08/2020
Diethylphthalate
EPA 625
<5.56 pg/L
07/08/2020
Dimethylphthalate
EPA 625
<5.56 pg/L
07/08/2020
Di-n-Butylphthalate
EPA 625
<5.56 pg/L
07/08/2020
Di-n-Octyl phtha late
EPA 625
<5.56 pg/L
07/08/2020
Reoort #:: 2020-11094 Page 4 of 5

F, :-�7 Environmental Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 ■ 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
sM 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS [e-mail]
Pender County Utility Operations
Post Office Box 995
Burgaw NC 28425
Attention: Kurt Lonander
Revised Report: Sep 04, 2020
Original Report Date: Jul 23, 2020
Report #: 2020-11094
Customer ID: 08100095
Project ID: Pollutant Scan
Fluoranthene
EPA 625
<5.56 pg/L
07/08/2020
Fluorene
EPA 625
<5.56 pg/L
07/08/2020
Hexachlorobenzene
EPA 625
<5.56 pg/L
07/08/2020
Hexachlorobutadiene
EPA 625
<5.56 pg/L
07/08/2020
Hexach lorocyclo pentad iene
EPA 625
<27.8 pg/L
07/08/2020
Hexachloroethane
EPA 625
<5.56 pg/L
07/08/2020
Indeno(1,2,3-cd)pyrene
EPA 625
<5.56 pg/L
07/08/2020
Isophorone
EPA 625
<5.56 pg/L
07/08/2020
Naphthalene
EPA 625
<5.56 pg/L
07/08/2020
Nitrobenzene
EPA 625
<5.56 pg/L
07/08/2020
N-nitroso-dimethylamine(NDMA)
EPA 625
<5.56 pg/L
07/08/2020
N-Nitroso-di-n-propylamine
EPA 625
<5.56 pg/L
07/08/2020
N-Nitroso-diphenylamine
EPA 625
<5.56 pg/L
07/08/2020
Phenanthrene
EPA 625
<5.56 pg/L
07/08/2020
Pyrene
EPA 625
<5.56 pg/L
07/08/2020
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
20-27896 Site: Field Blank
7/7/2020 9:00 AM Water Kurt Lonander
Test Method Results Date Analyzed
LL Mercury
EPA 1631e
Comment: Revised to add 2- hloroethyl vinyl ether to 624 report list.
Reviewed by:
<0.500 ng/L 07/20/2020
Renort it.. 2020-11094 Page 5 of 5

Mercury (CVAFS)
Client Environmental Chemist, Inc. Laboratory ID: VG10016-007
Description 20-27695 Matrix: Aqueous
Dale Sampled.07107/2020 0900
Date Received 07/09/2020
Run Prep Method Analytical Method Dilution Analysis Dale Analyst Prep Date Batch
1 1631E 1 07/20/2020 1826 JMH 07/16/20201253 60079
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439.97-6 1631E ND 0.500 nglL 1
LOO x Umit of Ouanbtabon S c Detected In the method blank E ■ Ouantftatlon of compound exceeded the cal,bration range
ND - Not detected at or above the LOO N e Recovery is out of criteria P • The RPD between two GC columns exceeds 40%
H - Out of holding time W - Repotted on wet weight bests
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fox [phone] www pacelebs com
Pagc 11 or22

Mercury (CVAFS)
Client Environmental Chemist, Inc. Laboratory ID' VG10016-008
Description.20-27896 Matrix Aqueous
Date Sampled 0710712020 0900
Date Received, 07/09/2020
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 07/2012020 1832 JMH 07/16/2020 1253 60079
CAS Analytical
Parameter Number Method Result 0 LOO Units Run
Mercury (CVAFS) 7439-97-6 1631 E ND 0.500 nglL 1
LOO = Until of Ouantitat on a = Detected In the method blank E = Ouarrotation of compound exceeded the calibration range
NO x Not detected at or above the LOO N = Recovery Is out of rAterfa P - The RPD between two GC columns exceeds 40%
H : Out of holding time W a Reported on wet weight basis
Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.pecalabs.com
Page 12 of 22

Environmental Chemist, Inc., Wilmington, NC Lab #94
6602 Windmill Way
Wilmington, NC 28405
910.392.0223
SampleLeceLlt.Checklist
Client:Date. Report Number: C� 11 UC
Receipt of sample: DeliveredO UPS ❑ FedEx ❑ Other ❑
❑ YES
10 NO
N/A
11. Were custody seals present on the cooler?
❑ YES
❑ NO
JtV N/A
2. If custody seals were present, were they intact/unbroken?
Original temperature upon receipt 'C Corrected temperature upon receipt •C
How temperature taken: ❑ Temperature Blank Against Bottles
IR Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor'C: 0.0
❑ YES
❑ NO
3. If temperature of cooler exceeded 6'C, was Project M r./C1A notified?
YES
❑ NO
4. Were proper custody procedures (relinquished/received) followed?
YES
❑ NO
S. Were sample ID's listed on the COC?
YES
❑ NO
6. Were sam les ID's listed on sample containers?
YES
❑ NO
7. Were collection date and time listed on the COC?
YES
❑ NO
8. Were tests to be performed listed on the COC?
YES
❑ NO
9. Did samples arrive in proper containers for each test?
YES
❑ NO
10. Did samples arrive in good condition for each test?
YES
❑ NO
11. Was adequate sample volume available?'
YES
❑ NO
12. Were samples received within proper holding time for requested tests?
YES
CI NO
13. Were acid preserved samples received at a pH of <2? `
YES
13 NO
14. Were cyanide samples received at a pH >12?
O YES
❑ NO
15. Were sulfide samples received at a pH >9?
YES
❑ NO
16. Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L?'•
YES
O NO
17. Were Sulfide/Cyanide received at a chlorine residual of <0.5 m/L?
❑ YES 10
NO 118.
Were orthophosphate samples filtered in the field within 15 minutes?
TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet.
" Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet.
Sample Preservation: (Must be completed for any sample(s) incorrectly preserved or with headspace)
Sample(s) were received incorrectly preserved and were adjusted accordingly
by adding (circle one): H250. HNO3 HCl NaOH
Time of preservation: If more than one preservative is needed, notate in comments below
Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new sample or
notify the state lab if directed to analyzed by the customer. Who was notified, date and time
Volatiles Sample(s) were received with headspace
COMMENTS:
nnr- n w nn'l

11 f r-
H-
L
I.
x
a
0
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11
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mir7

Environmental Chemists, Inc®
0602 Windmill Way, Wilmington, NC 28405 O 910.392.0223 Lab m 910.392.4424 Fax
710 Sowsertown Road, Manteo, NC 27954 ° 252,473.5702 Lab/Fax
(sM:. 255-A Wilmington Highway, Jacksonville, NC 28540 " 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS inf'o(aienvirontnetita(chemists.com
Pender County Utility Operations
Post Office Box 995
Burgaw NC 28425
Attention: Kurt Lonander
Date of Report: Jan 15, 2020
Customer PO #:
Customer ID: 08100095
Report #: 2019-21458
Project ID: Pollutant Scan
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
19-54327 Site: Effluent - Composite
12/19/2019 9:00 AM Water Kurt Lonander
Test
Method
Results
Date Analyzed
Antimony
EPA 200.7
<0.01 mg/L
12/26/2019
Beryllium
EPA 200.7
<0.01 mg/L
12/26/2019
Copper
EPA 200.7
<0.01 mg/L
12/26/2019
Nickel
EPA 200.7
<0.01 mg/L
12/26/2019
Selenium
EPA 200.7
<0.01 mg/L
12/26/2019
Thallium
EPA 200.7
<0.01 mg/L
12/26/2019
Zinc
EPA 2007
0.013 mg/L
12/26/2019
Arsenic
EPA 200.8
<0.001 mg/L
12/27/2019
Cadmium
EPA 200.8
<0.001 mg/L
12/27/2019
Chromium
EPA 200.8
<0.001 mg/L
12/27/2019
Lead
EPA 200.8
<0.001 mg/L
12/27/2019
Silver
EPA 200.8
<0.001 mg/L
12/27/2019
Ammonia Nitrogen
EPA 350.1
0.3 mg/L
01/07/2020
Total Hardness
SM 2340 C
44 mg/L
01/13/2020
Total Dissolved Solids (TDS)
SM 2540 C
1340 mg/L
12/20/2019
Total Phosphorus
SM 4500 P F
0.20 mg/L
01/06/2020
Total Nitrogen (Calc)
Total Kjeldahl Nitrogen (TKN)
EPA 351.2
1.8 mg/L
01/06/2020
Nitrate+Nitrite-Nitrogen
EPA353.2
0.53mg/L
01/06/2020
Total Nitrogen
Total Nitrogen
2.3 mg/L
01/10/2020
Report #:: 2019-21458 Pana t of K

Environmental Chemists, Inc.
envirochem6602 Windmill Way, Wilmington, NC 28405 ° 910.392.0223 Lab • 910.392.4424 Fax
L MA 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS info(cuenvironmentalchemists.com
Pender County Utility Operations
Date of Report: Jan 15, 2020
Post Office Box 995
Customer PO #:
Burgaw NC 28425
Customer ID: 08100095
Attention: Kurt Lonander
Report #: 2019-21458
Project ID: Pollutant Scan
Lab ID Sample ID:
Collect Date/Time Matrix Sampled by
19-54328 Site: Effluent - Grab
12/19/2019 10:57 AM Water Kurt Lonander
Test
Method
Results
Date Analyzed
LL Mercury
EPA 1631e
<0.500 ng/L
12126/2019
Oil & Grease (O&G)
EPA 1664
<5 mg/L
12/24/2019
Cyanide
EPA 335.4
< 0.005 mg/L
12/27/2019
Inorganic Phenols
EPA420.1
0.010mg/L
01/08/2020
1, 1, 1 -Trichloroethane
EPA 624
<0.5 pg/L
12/20/2019
1,1,2,2-Tetrachloroethane
EPA 624
<0.5 pg/L
12/20/2019
1,1,2-Trichloroethane
EPA 624
<0.5 pg/L
12/20/2019
1,1-Dichloroethane
EPA 624
<0.5 pg/L
12/2012019
1, 1 -Dichloroethene
EPA 624
<0.5 pg/L
12/20/2019
1,2-Dichlorobenzene
EPA 624
<0.5 pg/L
12/20/2019
1,2-Dichloroethane
EPA 624
<0.5 pg/L
12/20/2019
1,2-Dichloropropane
EPA 624
<0.5 pg/L
12/20/2019
1,3-Dichlorobenzene
EPA 624
<0.5 pg/L
12/20/2019
1,4-Dichlorobenzene
EPA 624
<0.5 pg/L
12/20/2019
Acrolein
EPA 624
<5 pg/L
12/20/2019
Acrylonitrile
EPA 624
<5 pg/L
12/20/2019
Benzene
EPA 624
<0.5 pg/L
12/20/2019
Bromodichloromethane
EPA 624
<0.5 pg/L
12/20/2019
Bromoform
EPA 624
<0.5 pg/L
12/20/2019
Bromomethane
EPA 624
<0.5 pg/L
12/20/2019
Carbon Tetrachloride
EPA 624
<0.5 pg/L
12/20/2019
Chlorobenzene
EPA 624
<0.5 pg/L
12/20/2019
Chloroethane
EPA 624
<0.5 pg/L
12/20/2019
Chloroform
EPA 624
<0.5 pg/L
12/20/2019
Chloromethane
EPA 624
<0.5 pg/L
12/20/2019
cis-1,3-Dichloropropene
EPA 624
<0.5 pg/L
12/20/2019
Report #: 2019-21458
__.
Page 2 of 5

Environmental Chemists, Inc.
envirochem 6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab • 910.392.4424 Fax
i� 710 Bowsertown Road, Manteo, NC 27954 ' 252.473.5702 Lab/Fax
255-A Wilmington. Highway, Jacksonville, NC 28540 ' 910.347.5843 Lab/Fax
ANALYTICAL & CONSULTING CHEMISTS into(z)environmetitalchemists.com
Pender County Utility Operations Date of Report: Jan 15, 2020
Post Office Box 995 Customer PO #:
Burgaw NC 28425 Customer ID: 08100095
Attention: Kurt Lonander Report #: 2019-21458
Project ID: Pollutant Scan
Dibromochloromethane
EPA 624
<0.5 pg/L
12/20/2019
Ethylbenzene
EPA 624
<0.5 pg/L
12/20/2019
M+P Xylene
EPA 624
<1.0 pg/L
12/20/2019
Methylene chloride
EPA 624
<0.5 pg/L
12/20/2019
ortho-Xylene
EPA 624
<0.5 p9/L
12/20/2019
Tetrachloroethene
EPA 624
<0.5 pg/L
12/20/2019
Toluene
EPA 624
0.930 pg/L
12/20/2019
Trans-1,2-Dichloroethene
EPA 624
<0.5 pg/L
12/20/2019
trans- 1,3-Dichloropropene
EPA 624
<0.5 pg/L
12/20/2019
Trichloroethene
EPA 624
<0.5 pg/L
12/20/2019
Trichlorofluoromethane
EPA 624
<0.5 pg/L
12/20/2019
Vinyl chloride
EPA 624
<0.5 pg/L
12/20/2019
2,4,6-Trichlorophenol
EPA 625
<5 pg/L
12/19/2019
2,4-Dichlorophenol
EPA 625
<5 pg/L
12/19/2019
2,4-Dimethylphenol
EPA 625
<5 pg/L
12/19/2019
2,4-Dinitrophenol
EPA 625
<25 pg/L
12/19/2019
2-Chlorophenol
EPA 625
<5 pg/L
12/19/2019
2-Methyl-4,6-dinitrophenol
EPA 625
<25pg/L
12/19/2019
2-Nitrophenol
EPA 625
<25 pg/L
12/19/2019
4-Chloro-3-methylphenol
EPA 625
<5 pg/L
12/19/2019
4-Nitrophenol
EPA 625
<25 pg/L
12/19/2019
Pentachlorophenol
EPA 625
<25 pg/L
12/19/2019
Phenol
EPA 625
<5 pg/L
12/19/2019
1,2 Diphenylhydrazine
EPA 625
<5 pg/L
12/19/2019
1,2,4-Trichlorobenzene
EPA 625
<5 pg/L
12/19/2019
1,2-Dichlorobenzene
EPA 625
<5 pg/L
12/19/2019
1,3-Dichlorobenzene
EPA 625
<5 pg/L
12/19/2019
1,4-Dichlorobenzene
EPA 625
<5 pg/L
12/19/2019
1-Methylnaphthalene
EPA 625
<5 pg/L
12/19/2019
2,4-Dinitrotoluene
EPA 625
<5 pg/L
12/19/2019
Report #:: 2019-21458
PA-1 of S

Lenvirlochem
ANALYTICAL & CONSULTING CHEMISTS
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab • 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax
info@environmentalchemists. corn
Pender County Utility Operations
Date of Report: Jan 15, 2020
Post Office Box 995
Customer PO #:
Burgaw NC 28425
Customer ID: 08100095
Attention: Kurt Lonander
Report #: 2019-21458
Project ID: Pollutant Scan
2,6-Dinitrotoluene
EPA 625
<5 lag/L
12/19/2019
2-Chloronaphthalene
EPA 625
<5 pg/L
12/19/2019
2-Methyl naphthalene
EPA 625
<5 pg/L
12/19/2019
3,3'-Dichlorobenzidine
EPA 625
<10 lag/L
12/19/2019
4-Bromophenyl phenyl ether
EPA 625
<5 pg/L
12/19/2019
4-Chlorophenyl phenyl ether
EPA 625
<5 lag/L
12119/2019
Acenaphthene
EPA 625
<5 pg/L
12/19/2019
Acenaphthylene
EPA 625
<5 pg/L
12/19/2019
Anthracene
EPA 625
<5 pg/L
12/19/2019
Benzidine
EPA 625
<10 pg/L
12/19/2019
Benzo (a)pyrene
EPA 625
<5 pg/L
12/19/2019
Benzo(a)anthracene
EPA 625
<5 pg/L
12/19/2019
Benzo(b)fluoranthene
EPA 625
<5 pg/L
12/19/2019
Benzo(g, h, i)perylene
EPA 625
<5 lag/L
12/19/2019
Benzo(k)fluoranthene
EPA 625
<5 lag/L
12/19/2019
Bis ( chloromethyl ) ether
EPA 625
<5 pg/L
12/19/2019
Bis(2-Chloroethoxy)methane
EPA 625
<5 pg/L
12/19/2019
Bis(2-Chloroethyl)ether
EPA 625
<5 lag/L
12/19/2019
Bis(2-Chloroisopropyl)ether
EPA 625
<5 pg/L
12/19/2019
Bis(2-ethylhexyl)phthalate
EPA 625
<5 pg/L
12/19/2019
Butylbenzylphthalate
EPA 625
<5 lag/L
12/19/2019
Chrysene
EPA 625
<5 lag/L
12/19/2019
Dibenzo(a, h)anthracene
EPA 625
<5 pg/L
12/19/2019
Diethylphthalate
EPA 625
<5 pq/L
12/19/2019
Dimethylphthalate
EPA 625
<5 lag/L
12/19/2019
Di-n-Butylphthalate
EPA 625
<5 pg/L
12/19/2019
Di-n-Octylphthalate
EPA 625
<5 pg/L
12/19/2019
Fluoranthene
EPA 625
<5 lag/L
12/19/2019
Fluorene
EPA 625
<5 pg/L
12/19/2019
Hexachlorobenzene
EPA 625
<5 pg/L
12/19/2019
Report #:: 2019-21458 Page 4 of 5

r
nvirochelm
(SM)
ANALYTICAL & CONSULTING CHEMISTS
Pender County Utility Operations
Post Office Box 995
Burgaw NC 28425
Attention: Kurt Lonander
Environmental Chemists, Inc.
6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab ° 910.392.4424 Fax
710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax
255-A Wilmington Highway, Jacksonville, NC 28540 " 910.347.5843 Lab/Fax
info a)envirolimentalchernists.com
Date of Report: Jan 15, 2020
Customer PO #:
Customer ID: 08100095
Report #: 2019-21458
Project ID: Pollutant Scan
Hexachlorobutadiene
EPA 625
<5 ug/L
12/19/2019
Hexachlorocyclopentadiene
EPA 625
< 25 ug/L
12/19/2019
Hexachloroethane
EPA 625
<5 pg/L
12/19/2019
Indeno(1,2,3-cd)pyrene
EPA 625
<5 pg/L
12/19/2019
Isophorone
EPA 625
<5 pg/L
12/19/2019
Naphthalene
EPA 625
<5 pg/L
12/19/2019
Nitrobenzene
EPA 625
<5 Ug/L
12/19/2019
N-nitroso-dimethylamine(NDMA)
EPA625
<5pg/L
12/19/2019
N-Nitroso-di-n-propylamine
EPA 625
<5pg/L
12/19/2019
N-Nitroso-diphenylamine
EPA 625
<5 pg/L
12/19/2019
Phenanthrene
EPA 625
<5 Ng/L
12/19/2019
Pyrene
EPA 625
<5 pg/L
12/19/2019
Lab ID Sample ID:
Collect Date/Time
Matrix Sampled by
19-54329 Site: Blank
12/19/2019 10:57 AM
Water Kurt Lonander
Test
Method
Results Date Analyzed
LL Mercury
EPA 1631e
<0.500 ng/L
12/26/2019
Comment:
Reviewed by:
Report #:: 2619-21456 �.r page 5 of 5

Mercury (CVAFS)
Client: Environmental Chemist, Inc. Laboratory ID:UL20115-007
Description: 19-54328 Matrix: Aqueous
Date Sampied:12/19/2019 1057
Date Received: 1212012019
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 12126/20191904 JMH 12/23/20191745 39883
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury (CVAFS) 7439-97-6 1631E ND 0.500 ng/-Li
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40%
H = Out of holding time W = Reported on wet weight basis
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page I I of22
ICi — �tl1G,iC

Mercury (CVAFS)
Client: Environmental Chemist, Inc. Laboratory ID: UL20115-008
Description: 19-54329 Matrix: Aqueous
Date Sampled:1211912019 1057
Date Received: 12120/2019
Rurr rrep mernoo Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 12/26/2019 1937 JMH 12/23/2019 1745 39883
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury (CVAFS) 7439-97-6 1631E ND 0.500 ng/L 1
LOO = Limit of Quantitation B = Detected In the method blank E = Quantitation of compound exceeded the calibration range
ND = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 %
H = Out of holding time W = Reported on wet weight basis
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 12of22

�I_e r-,\ �0- r Co
C �,A
A (5) EFFLUENT POLLUTANT SCAN
Permit NCO081736
The permittee shall perform an annual Effluent Pollutant Scan for all parameters listed in the table below
(in accordance with 40 CFR Part 136). The annual effluent pollutant scan samples shall represent
seasonal (summer, winter, fall, spring) variations over the 5-year permit cycle. Unless otherwise
indicated, metals shall be analyzed as "total recoverable." Additionally, the method detection level and
the minimum level shall be the most sensitive as provided by the appropriate analytical procedure.
,'Ammonia (as N)
Trans-1,2-dichloroethylene
Bis (2-chloroethyl) ether
Chlorine (total residual,
1,1-dichloroethylene
Bis (2-chloroisoprop yl) ether
TRC)
Dissolved oxygen
1,2-dichloropropane
Bis (2-ethylhexyl) phthalate
Nitrate/Nitrite
11,3-dichloropropylene
4-bromophenyl phenyl ether
Total Kjeldahl nitrogen
Ethylbenzene
Butyl benzyl phthalate
Oil and grease
Methyl bromide
2-chloronaphthalene
r Total Phosphorus
Methyl chloride
4-chlorophenyi phenyl ether
w Total dissolved solids
Methylene chloride
Chrysene
Hardness
1,1,2,2-tetrachlorcethane
DI-n-butyl phthalate
Antimony
Tetrachloroethylene
DI-n-octyl phthalate
Arsenic
;Toluene
Dibenzo(a,h)anthracene
Beryllium
1,1,1-trichloroethane
1,2-dichlorobenzene
Cadmium
1,1,2-trichloroethane
1,3-dichlorobenzene
Chromium
Trichiorcethylene
1,4-dichlorobenzene
Copper
Vinyl chloride
3,3-dichlorobenzidine
Lead
Diethyl phthalate
Mercury(Method 1631E)
P-chloro-m-cresol
Dimethytphthalate
}Nickel
( 2-chlorophenol
2,4-dinitrotoluene
Selenium
2,4-dichlorophenol
2,6 dinitrotoiuene
Silver
2,4-dimethylphenoi
1,2-diphenylhydrazine
Thallium
4,6-dinitro-o-cresol
Fluoranthene
Zinc
2,4-dinitrophenol
Fluorine
L'Cyanide
2-nitrophenol
Hexachlorobenzene
QTotal phenolic compounds
Volatile
I4-nitrophenoi
Hexachlorobutadiene
organic compounds:
i�lentachlorophenol
t-lexachlorocyclo-pentadiene
Acrolein
Phenol
Hexachloroethane
Acrylonitrile
2,4,6-trichlorophenol
Indeno(1,2, 3-cd)pyrene
Benzene
Base -neutral compounds:
Isophorone
Bromoform
Acenaphthene
Naphthalene
Carbon tetrachloride
Acenaphthylene
Nitrobenzene
Chlorobenzene
Anthracene
N-rnitrosodi-n-propylamine
Chlarodibromomethane
Benzidine
N-nitrosodimethylamine
Chloroethane
Benzo(a)anthracene
N-nitrosodiphenylamine
2-chloroethylvinyl ether
Benzo(a)pyrene
Phenanthrene
Chloroform
3,4 benzofluoranthene
Pyrene
Dichlorobromomethane
Benzo(ghi)perylene
1,2,4-tichlorobenzene
1,1-dichloroethane
Benzo(k)fiuoranthene
1,2-dichloroethane
Bis (2-chioroethoxy)
methane
VD j-;' i./
Test results shall be reported to the Division in DWQ Form- DMR-PPA1 or in a form approved by the Director,
within 90 days of sampling. A copy of the report shall be submitted to Central Files to the following address:
Division of Water Resources, Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617,
Page 9of9

:�11
cn�irrcnmcr;tal. iris. (E64) 1377-6942 . FAX (0641 i77.69315
r 0, Box 16414, Gfeenv Ile SG 29606 4 Ciaf sm all Gum, Farrar, SC 2001
Ceriodaphnia dubia 24 Hr. Acute Definitive Test
EPA-821-R-02-012 Method 2002
Client: PENDER COUNTY
Facility: WWTP 421
NPDES #: NCO081736
Test Date: 09-Sep-20
Laboratory ID #: T57340 C dubia
Test Reviewed and Approved By:
AP W
Robert W. Kelley, Ph.D.
QA/QC Officer
Inelac Certification #ES7819
Test results presented in this report conform to all requirements of
NELAC, conducted under NELAC Certification Number U7819
Florida Dept of Hcalth. Included results pertain only to provided s les.
age 1 of 4
iFarhad Rostampour
Laboratory Director
.�f. CDHEC Certification #23104
NCDENR Certification # 022

Effluent Toxicity Report Form - Chronic PasslFail and Acute LC50
Date 14-Sep-20
Facility: PENDER COUNTY WWTP NPDES#NC0051736 Pipe# 001 county: Pender
Laboratory Performing Test:
WAMMON
Comments
X
Signature of Operator in Responsible Charge
X
Signature of Laboratory Supervisor
MAIL. ORIGINAL. TO
North Carolina Ceriodaphnia Chronic, PasslFail,ReRrnduction Toxicity Test
CONTROL ORGANISMS
# Young Produced
Adult ,Ljiye (D)oad
Effluent %
TREATMENT 2 ORGANISMS
# Young Produced
Adult ,L)iva (D)ead
Environmental Sciences Branch
Div. of Water Quality
N.C. DENR
1621 Mail Service Center
Raleigh, North Carolina 27699.1621
Chronic Test Results
Calculated t=
Critical Value=
1 2 3 4 5 5 7 8 9 10 11 12 % Reduction=
1 2 3 4 5 6 7 8 9 10 11 12
pril let sampis 1stsampfe 2nd sample
Control
Treatment 2
start and start and start and
D.O. lstse le lstasm la 2nd sam le
Control
Treatment 2
LC501Acute Toxicity Test
MENE
(Mortality expressed as %, combining reptcates)
016.25112.51 25 501 100
0 0 1 0 0 0 1 0
LC50 = >100 % Method of Determination
95% Confidence Limits MDving Average Prc
NA% NA % Spearman Karber ROO
organism Tested Cerlodaphnia dubia
to This for Either Test
�n f5iar11 rJala
1 07-Sep-20
Sample 1 X 24"�
Sample 2
Hardness (mg1L)
Spec. Cond. (umhos)
Chlorine (mg1L)
Temp, at reca,pt CC)
CDnlmi Control
-eatmant 2 Treetmeni 2
Dntmi CV
% 3rd Brood PASS FAIL
Test Start Date
99-Sea-20
Sample 2 NA
1st 2nd
Tox Tax
lution Sample Semple
82.0
319 2450
C 05
0.6
Alortatity start/and startfend
7.7 7.4 Control 8.11 8.1
61:3,8 7.6 High Conc. 8.8 7.1
X pH 0.0.
DEM Form AT-1
Page 2 of 4

24 Hour Acute Toxicity Test
T—t NAnfhn A- Foe A94 D n1 e47 LAvar...d nn—
C tent:
FENDER COUNTY
Sam a LD: PENDER COUNTY La M: T57340u
Start Date:
09 09l20 Time: 01:00 PM
Set By: JC
Eaded By- JZ
End Date: 09/10/20 Time: 01:31 PM
Test Vessel
Test Salutior Volume €rcubalcr
Transfer Volume
Dilution Water
Oaphnide
t oz plastic cup
25 mL #1
0.05 mL
MHSF
Rand°mizetiea ahem per SOP lNeonritris from commcc rr'n -9 :rsse Light: 50 -1 fl0 ft-c. 16 hr light / 8 hr dark
TEST ORGANISNIS
for Ceriodaphnia duhia
Comments:
Date Removed: oamamn
Between:
1700 and: 2200
ime hales promelas
Source:
Days old:
5-X 8128, A-F 8l28
lf>•sido sis hahia
Source:
Days old:
RANDOMIZED
Test Organisms Pre Fed by-. JC
Time.
11:00
mnRTAI.ITV neTA
Initial
Final
T F:... >
C.O.
H
Cantl!
Sa',n
H":
Temp
[7.0 aH
Cond!
Sal ri
H
'4.5
U-1
T7
I
24.51
s,4
?.h
('
24_7
R,l
2 i.5 i
9.4
7.5
JC'
24,-
24.5
R.4 j
7.31
1ju
24 7
EA 4
)Z
24.5
1 4_8
16 x
I JAC
24
7 r; 1 7 61 1
J/
°C
I m,'L
f'p-1. I
=C I
P'Lj I PPT
Page 3 of 4

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�� tnriranttxt?n��i,lttc,
PO, Box If-414. Greenv Ile; CC 29606
(E64) 977-6,942 . EWA (DG4) 67 7-CB38
4 Craftsman Cuirl, GrHw, 5C 29650
Pimephales promelas 24 Hr. Acute Pass/Fall Test
EPA-821-R-02-012 Method 2000
Client: PENDER COUNTY
Facility: WWTP 421
NPDES #: NCO081736
Test Date: 09-Sep-20
Laboratory ID #: T57340 APF
Test Reviewed and Approved By:
Robert W. Kelley, Ph.D.
QAIQC Officer
�nelac Certificatiun #E87819
Test results presented in this report conform to all requirements of
NELAC, conducted under NELAC Certification Number E87819
Florida Dept of Health Included results pertain only to provided same -
Z, 1 of
Farhad Rostampour
Laboratory Director
SCDHEC Cer4fica4on#23104
NCDENR Certification # 022

Effluent Aquatic_I
Facility Pender County WWTP
Laboratory �rroing Test
x
�
Signature or Operator In Resnonstble Charge
X—
sT
Signature of Leboatory Supervisor
Keport t-orm -Acute rassn-au Date: 09/14/20
NPDES# NCO081736 Pipe # 001 County Pander
MAIL ORIGINAL TO:
North Carolina Acute Pass/Faii To
Collection Date: 918120
Collection Time: 1000
Test Start Date: 919120
Sample Tvoe/Duration
Grab
Comp
Duration
X
24 hr
Control Sample
Hardness (rri 82
Spec. Cond. (Wmhos) 319 2450
Chlorine (mg/L) <0.05
Sample temp. at receipt r,.5
Comments
Environmental Sciences Branch
Div. of Water Quality
N.C. DENR
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
itv Test
anism Tested:
pH
Control 7.8 7.7
Treatment 7.3 7.3
start end
Control EB
Treatment
Mortali Replicate Mean Mortality
Treatment 1 (Control) A B C D
0a6 0"� 1 0% 0" 0%
Treatment 2 (Exposure A B C D
Concentration 90% 0% 0% 0% 0% 0%
Tested
(NOTE): If mean control mortality exceeds 10%, the testis considered invalid)
calculate using
Arc -Sine
Calculated Student's t
iV1A
PASS E
Square Root
transformed
Tabular Student's t
1.94
FAIL
data (ONE TAILED)
If the absolute value of the calculated t is less than or equal
to the absolute value of the tabular t, check PASS
If the absolute value of the calculated t is greater than the
absolute value of the tabular t, check FAIL.
If all vessels within each treatment have the same response
but the treatment two response is greater than the control, check FAIL.
DEM form AT-2 (8191)
Page 2 of 4

24 Hour Acute Toxicity Test
Test Methvd: EPA 621 R-02-012: McMod 2000 Plmechafes cromelas
C]ient:
PEND K COL'N"t'Y"
Sam le JD; EFFLUENT Lib [I)4: 1573411 APh
Start Date;
09/09/20 Time: 01:30 PM
set By: 4M
Ended By: JZ
End Date: 09?10.'2D Time: 01:49 Pil
Test Vessel
Teat Solution Volume
Incubator
Transfer Volume
Dilution Water
Fathead Minnows
500 mL plaslio cup
200 mL
#1
0.5 mL
MHSF
Randomizetian panam per SOP Nncnatas from common holding vessel
Light: 50 -1 OU ft-c. 16 hr light 18 hr dark
TEST ORGANISMS
for Ceriodaphnia dubia Comments:
Date Removed; Between: and: MRSF 8-28-20D
Pimephatespromelas Source; ABS rays old: 6 Fish hatched 9-3-20 btw 1300-1430 MT
sido sis bahia Sourer: Days old:
Test Or anisms Pre Fed : AM Time: 1030
MnRTA'f.ITV nATA
Initial
I --final
Temp
❑.O,
pH
Condf
Sal ni
B
Tem
❑.O
"1
Cond/
Sa'�ri
113Y.
24.6
1 7.71 7.91
1 A,U
24.6
R.l 1 7.7
1Z
24.4
9 4 7.3
1 ANI
24.61
7 41 7.3
iz
`C,
miJl. PP]L
`C
ma L. PPT
Page 3 of 4

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}rmranmemolT:ning Sdudunx. Inc.
March 15, 2021
Mr. Jay Baker
Environmental Chemists, Inc.
6602 Windmill Way
Wilmington, NC 28405
ETS Project Number: 15826
Test Start Date: 03-05-21
Facility Tested: Pender County WWTP
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for samples received by Environmental Testing Solutions Inc.
Parameter
Code Test Procedure, Method Number
I
TAA3B
Ceriodaphnia 48-hour LC50 Acute
EPA-821-R-02-012, Method 2002.0
Result
All toxicity testing results required as part of your permit must be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TAA3B.
Additionally, the 17MR Reporting Form AT-1 must be signed and e-mailed or mailed to the following
address:
ATForrns.ATBOC ncdenr.aov
North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Please call if you have any questions concerning these results.
Sincerely,
Jim mner
Laboratory Supervisor
North Carolina Certificate Numbers' Biologics[ Analyses: 037, Drinking Water: 37786, Wastewater: 600
South Carolina Certificate Number: Clean Water Act: 99053-001
0
c; \Z ('

Envnun.nrnW r-vn9 Saluunni Inc
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Effluent Toxicity Report Form - Chronic Pass/Fail and Acute LCso Date: March 15, 2021
Facility: Environmental Chemists, Inc. NPDES #: NC 0081736 Pipe ft: 001 County: Pender
Pender County 10 WTP
Laboratory Performing Test: Environmental Testing Solutions Inc/Certificate # 037 Comments
Signature of Operator `n Responsible Charge (ORC): "
ORC Phone/ E-mail: (-jx S12 " a' 1?j Pro;ect 4: 15826
Signature of Laboratory Supervisor: 5ample #: 210305.18
e-Mail to: [e-mail]
Or Mail Original to; North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
North Carolina Ceriodaphnia Chronic PassLFail Reproduction Toxicity Test
.ontrol Or anisms 1 2 3 4 5 6 7 8 9 10 11 1,
lumber of Young Produced
idult Survival: (L)ive, (D)ead
Effluent Percentage 0
reatment 2 Organisms 1 2 3 4 5 6 7 8 9 10 11 1:
lumber of Young Produced
IdultSurvival: (L)ive,(0)ead
Chronic Test Results
t-Stat 'Rank Sum
1-Tailed Critical
% Reduction:
Percent
Average
Mortal`ty
Reproduction
Control
Control
Treatment 2
Treatment 2
Control CV
PASS FAIL
x cr-^roret,msm� peewni
Ld ar.W
—]
pH (S.U.) 1st Sample 2nd Sample 2nd Sam le Test Start Date: 03-05-21
Control
Treatment 2 1 1 d FR Collection (Start) Date:
r t ro t± „ Sample 1 03-03-21
A C A C M C
,%W 441 W N w
D.O. (mg/L) 1st Sample 2nd Sam le 2nd Sample
Control
Treatment 2
Wsa/Acute Toxicity Test
(Mortality expressed as %, combining replicates.)
Concentratio- (%)
Mortality (%)
Control 45
1 67.5 1
90
1 95
1 100
0 0
0
0
0
0
Sample Type/Duration
Grab Camp. Duration
Sample 1 is 24 h G y
w
E
Alkalinity (mg CaCO3/L1
Hardness (mg CaCO3/Lj
Conductivity (kmhos/cm)
Total Residual Chlorine (mg/Lj
Sample Temp. at Receipt i*q
59
46
87
24
302
1240
< 0.10
3.1
LC50 : >100% Method of Determination
9S% Confidence Limits Trimmed Spearman Karber t= r
y C dl C
INC to NC Probit
X Other: Visual inspection 1 7.891 7.62 Control 7.6 1 7.7
7.01 7.59 High con,. 1 7.9 1 8.0
Organism Tested: Ceriodaphnia dubia Duration: 48-hour pH (S.U.) DO (mg/L)
DWR Report Form AT-1

Acute CC50 Whole Effluent Toxicity Test, Species: Ceriodaphnia dubia
EPA-821-R-02-012, Method 2002.0
Client Environmental Chemists, Inc.
Facility Pen der County WWTP
Project # 1tAVO Sample # unos . 1g
Dilution Preparation:
Test concentrations (xj 11 67.5
90
95
100
TILSample so 135
180
20
200
191)
10
200
200
0
100
ml Dilution water 110 65
Total volume (m1} 200 3 0
Page 1 of 2
NPDES # NC 0081736
Clutfall Opt 2A
Va
County New r ?wow
Sample was not aerated or treated unless otherwise noted or,
this form. Sample was warmed to 25.1) t 1.0°C in a warm
water bath and than diluted to the test concentrations using
moderately hard synthetic water (MHSWJ.
Chemical Analyses:
o
Hours
za
as
Concentration Analyst tD it,
�f
PH (s.U)
Dissolved oxygen (mg/i.)
Control,
Conductivity (µmhos/cm)
MHSW
Alkalinity (mg/L CaI
C-a
H4rdness(mg/LCaCo,)
Temperature (°CJ
-fat,
PH ls.U.l
. 4
-�- GZ
4596
Dissolved oxygen (mg/Ll
Al
Conductivity (µmhos/cm)
Temperature (aCj
•�,�
'LS . O
ZS .
PH 15-U.j+�.58
67.5%
Dissolved oxygen (mI
to
$
R
Conductivity (µmhos/cm)
Temperature rcl
tAy�.�
%S°0
PH (S.U.(
Tr
-4. g
3 -95
901A
Dissolved oxygen fmg/L)
t
4-g
q
Conductivity (pmhoslcm)
�sClo
Temperature (Q
-.9 AlI
zS •0
LS°
PH (s.U-)
5
1.5
5
9596
Dissolved oxygen (mg/L)
'I
Conductivity (µmhos/cm)
_
I f p
TemperaturerCj
Z°�•�
ZSp.1
yZL.o
Dissolved oxygen (mI
a
100%
ConductivityfNmhos/cm)
y.ti
Total residual chlorine (mg/L)
Temperature (aCJ
C 0.10
1,S -0
�5. 1
ZS- Z
Analyst identified for each day, performed pH, dissolved oxygen and conductivity
measurements only. Temperatures performed at the time of test initiation or termination by
the analyst performing the tonicity test. Alkalinity, hardness and total residual chlorine
performed by the analysts identified an the test specific bench sheets and transcribed to this
bench sheet.
Chemical analyses.
Parameter
Aeperting limb
I Method number
Meter
Serial number
PH
015.U.
SM4500-H.8•2011
Accumet A920
95312452
0lssolved oxygen
1.0 mg/L
SM 4500-0 G-2011
Y51 Model 52CE
1 e P304324
ccmiurdvity,
IA.9 µmhos/cm
SM 2510 0-2o11
Accumet AR 20
93312452
Al"Iinity
5 0 mg CaCOy/L
SM 2320 a-I011
Accume[ Aa20
93312A52
Hardness
5.0 mk CaM,/L
SM 2340 C-2011
Nat applicable
Not applicable
Total residual
chlorine
0.! mgjl
ORION 47-701977
Accumet AB250
92349123
Temperature
0,1`[
SM 2550e-2010
Digital Thermometer
t3tIM
AL4Cl1l l ►rill-' '
I—
SOP AT9-Aev1sion ( Exhlbit AT9,3

Page 2 of 2
Acute 1.C50 Whole Effluent Toxicity Test, Species: Ceriodaohnia dubla
i PA-821-R-02-022, Method 2002.0
Client Pender County WWTP
Project p tC'%t o Sample M -OVSos , !
pate
Feedinr
Ties u -nnletlana Terrnfneddn
Loralldn
aen dernktns
lime
Analyst
Time
Analyst
Incubrtor/fh.elr
Temple[e
WSW
fW soul,
.rwd.
(ry OS 1k
a O'100
10` ik
z �-L
2c�j
of 11
z4
cy aL 11
1 Al-
48 r
13 'O-"-k
fo`i0
g—l-m,wxrn lea in romn[1 to s--pi—a test iminwwl T-1 r.la nuns were rdT led dunnr the lem
Test Organism Information,
Q,rdnlsm Source:
3n-house Culture
Source lorgartisms were pooled):
:g z.
< 24-Acurs old
Date and time organisms
were born between:
cJ%J-G`. ti\ tS' b
�ii•!.i 0100
AvcragP lrarlsler VChrme:
c0.25 mL
Transfer howl Information.
pH €S.U.€:
Temperature 1•Cl. - a
Survival Data (number of living organisms).
Hours
Control
45%
67.5%
Replicate
Replicate
Replicate
A
$
C
D
E
f
G
H
1
J
X
L
0
tytnlathn
5
5
5
5
5
5
5
5
5
5
5
5
24
5
S
S
S
S
5
5
5
5
5
S
48
T—irsenoei
S
S
5
5
S
S
S
S
5
S
S
hleen suntallxl
1 l](7 � -
i Ol]� -
� bQ1.
Hours
90%
95%
100%
Replicate
Replicate
Replicate
M
N
D
P
Q
R
S
T
U
V
W
X
0
r�umcmn
5
5
5
5
5
5
5
5
5
5
5
5
24
5
5
5
5
5
S
5
S
5
5
s
as
S S S 5
5 S
T—.—
codes: d=dead,u-unheaP!4,
stothda.
Method
VII&IJ Al. t WO
lower
95%ranlldena klmit %
�C
Uppev
9S% conRdence limit
49-hour lLC%. (%l
i 1007
SOP AT9.aemlpn 6-&hiblt AT4 3

0
351 Depot Street
A5 CV[lle, NC 28801
Phone [phone]
Fay. [phone]
� EnviranmentalTesting Solutions, Inc, ♦ ,� I
Whole Effluent Toxicity Chain -of -Custody Ftarlln
Facility Environmental Chemists, Inc. NPDES4 NCO081736 Piped 001 County Neu' itos^er
Pender County WWTP Purchaseorder
Species C•eriodaphnia du8ia Effluent dilution 45, 67.5, 90, 95, 100%
Test type 48-hour Acute LCSO Parameter code TAA3B
Sample infarmation: (to be completed by sample collector)
Composite sample: Sample location ee4
11
Start date —.Oh./ Time P-r ;:'4- Volume collected for testing +( fw 0
End date t t Time O'f •-.a Number of containers filled I -or testing /
Number of samples per hour / Method of transport to laboratory ttA—
Chilled during collection' , Comments
If chilled, specify temperature
Triple rinse sample container with sample before filling. Completely rill the sample container with no air space
Pack the sample container completely in ice. The sample must be c 6.0°C upon receipt at the taboralory.
Sample custody:
(tn be completed by sample collector and facitm personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
SA mple catteetm by:
ns.r ✓ •/G fro?
r"" "tra'ur ibee duce
Relistimshed by:
E+w.r rRwfwv itaad n,n.
Sample receipt information: (to be completed by ETS personnel)
Rre rived by:
n1w S„nC 11.:u a.f vs.
Rriingaished to ETS try: Rtceired ml ETS by:
�•'?2 3t3�z9
�r�
.rr,r ],Rrwtluc lla,r ur. r... 51RGu9Le W, eaJ umr
Custody seals intact^:
Y. Nu No uad
Samples received in good condition.":
r� Y.
N.
Tracking number- f 19(;�411
Comments:
Sample temperature upon receipt at ETS ("Q.
?j �•c
Total residual chlorine upon receipt at ETS:
(DPD Presea[elAbsense Indicator, MDL - 0 In mglL) Ab—
Project number. Sample number: 2 105$

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Ger oda hnia dubia
Acute Reference Toxicant Control Chart
Ervrmnmuntal Testing Solutions, Ina Souv re: In—house Culture
2.6 F r --r--r-- r
I Control Limits h
2.5
2.4 •
2.3 r •
2.2 L
1. 1 1 1
2.6
2.5
2.4 �—
2.3 r • •
2.2 F
1 I [
Q�,.z4 zti�'a o3:ae a�:i•Q �y�9 oy�� o� y� oti�Q v� za Q6.tio tio�a 1.t �o �6�� �y:>-� ayzQ o$ti� oy:r.� a;�.ti �zti11fl3ti
-est date
48-hour LC,, = median lethal concentration. An estimation of the sodium chloride concentration
which is lethal to 50% of the test organisms in 48-hours (calculated using ToxCalc).
Central Tendency (mean logarithmic LC,, converted to anti -logarithmic values)
Control Limits (mean logarithmic LCSo± 2 standard deviations converted to anti -logarithmic values)
Laboratory Warning Limits (mean logarithmic LC,,, ± 2 coefficent of variations converted to anti -logarithmic values)
USEPA Warning Limits (mean logarithmic LCso± SA 10 converted to anti -logarithmic values,
SA 16 = loth percentile of CVs reported nationally by USEPA)
a.a...w w
ums.mu
,VL

22 - � \ Uz�
Enrlmn wLal Tewtlng SulutlanOpc.
June 20, 2022
Mr. Jay Baker
Environmental Chemists, Inc.
6602 Windmill Way
Wilmington, NC 28405
ETS Project Number: 17036
Test Start Date: 06-08-22
Facility Tested: Pender County WWTP
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for samples received by Environmental Testing Solutions Inc.
Parameter
Test Procedure, Method Number Result
Code
Ceriodaphnia 48-hour LCsa Acute
TAA3B
>100%
f
EPA-821-R-02-012, Method 2002.0 -
All toxicity testing results required as part of your permit must be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TAA38.
Additionally, the DMR Reporting Form AT-1 must be signed and e-mailed or mailed to the following
address:
[e-mail]
Forth Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Please call if you have any questions concerning these results.
Sincerely,
a�
umner
Laboratory Supervisor
North Carolina Certificate Numbers! Biological Analyses: 037, Drinking Water: 37786, Wastewater: 60Q
South Carolina Certificate Number. Clean water Act: 99053-001

Frtylrpnmenlal Teuing Solutions, Inc
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Effluent Toxicity Report Form - Chronic Pass/Fail and Acute LC,, Date: June 20, 2022
Facility: Environmental Chemists, Inc. NPDES #: NC 0081736 Pipe #: 001 County: Pender
Pender County WWTP
Laboratory Performing Test: Environmental Testing Solutions, Inc., Certificate # 037 comments'
c
Signature of Operator in Responsible Charge (ORC): VI i r_
ORC Phone / E-mail:
Project#: 17036
Signature of Laboratory Supervisor: Sample #: 220608.23
e-Mail to:
Or Mail Original to: North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC Z7699-1621
North Carolina C'eriodra hnifa Chronic Pass Fail Reproduction ToxicitV Test
Control Organisms
1 2 3 4 5 6 7 8 9 10 11 12
Effluent Percentage
Treatment 2 Organisms 1 2 3 4 5 6 7 8 9 10 11 12
(Number of Young Produced �__
jAdultSurvival: (L)ive, (D)ead — ,
Chronic Test Results
t-Stat / Rank Sum
1-Talled Critical
% Reduction:
Percent
Average
Mortality
Reproduction
Control
Control
Treatment 2
Treatment 2
I
Control CV
PASS FAIL
3rd Wood
pH (S.U.)
1st Sample
2nd Sample
2nd Sample
3est Stars Date; T
Control
—
Treatment 2EE
Collection (Start) Date:
n U
�,
w
t G
w
Sample 1 06-06-22
D.O. (mg/L)
1st Sample
2nd Sample
2nd Sample
.Sample Type/Duration T
Control
i Grab. Comp. Duration
Treatment 2
06-08-2 2
Sample 1 X I 74•h c
a
_ m
LCsa/Acute Toxicity "Pest alkalinity (mg caco3/L) 64 160
(Mortality expressed as %, combining replicates.) I Hardness [mg CaCO3/1-187 36
Concentration (%] Control 45 67.5 90 95 100
Mortality 1 a 0 0 1 0 f O I 0
LC50 = >100% Method of Determination
95% Confidence Limits Trimmed Spearman Karber
NC to NC Probit
x Other: Visual inspection
I
i Conductivity (pmhos/crri 296 3160 i
r--- ---- -i {
1 Total Residual Chlorine; g;'_; I C 0.10 I
j Sample Temp, at Receipt , C) { 1.5
---
Organism Tested: C'eriodaphnia dubia Duration: 48-hour
DWR Report Form ,4T-1
t � t=
u
7.59 7. 88 Control 1 7.7 1 7.9
7.8418.231 High Conc. 1 7.8 1 8.1
PH (S.U.) DO (mg/L)

5 Environmental Testing Solutions, Inc.
351 Depot Street
Asheville, NC 28801
Phone. [phone]
Fax [phone]
Whole Effluent Toxicity Chain --oi-Custody Form
Facility. Environmental Chemists, Inc._ _ NPDES d NCO081736 Pipe # 001 County New Hanover
Pender CountyWWTP Purchase order
Species, Cerioda_pknia dubia Effluent dilution Sit 67.5, 90, 95, 100%_
Test type 48-hour Acute LCso Parameter code 71—kT. 3l3
Sample information: (to be completed by sample collector)
Composite sample- Sample location. r
Start date 9l 6 2 Z Time 49 �00 Volume collected for testing �ilAM -
End date d 7Z 2 Time ® MO Number of containers filled for testing
Number of samples per hour ., --- Method of transport to laboratory awle'-
Chilled during collections �s'e5 _ Comments *%
� .Trs A:-f
If chilled, specify temperature d e _
�A
Triple rinse sample container with sample before filling. Completely fail the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0'C upon receipt sit the laboratory.
Sample custody: (to be completed by sample collector and facility person:-._:
BY SIGNING BELOW, f CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
S,.,nlmpir`cal/iected by: qy /gyp
r-,.-3 xn.r:rs nr�con,
Relinquished by: Received by:
lYee 5sFrtrtr: ... i::: ev W. W 1—
Relinquished by: -- Received lr+:
. 1 _ .1 ;r_ : ar. AArl Aar
Sample receipt information: (to be completed by ETS personnel)
Relinquished to ETS by: Received �l ETS bl _
J ,. sorfit
Ze+
i y�l •�. V
Custody seats intact":
Y. No Noi-
Samples received in good condition":
n No
Tracldng number.
Cammeats:
Sample temperature upon receipt a ETS (°C): F
=Sr—
Tatal residual chlorine upon receipt at ETS:
(DPI} Prr cnce/Absense Indicator, MDL = 0 10 m/L) i�"itl Ab A
Project number: I- Mu Sample number: : 9
F

Ceriodaphnia dubia
Acute Reference Toxicant Control Chart
Envlronmental Testing Solutlom, Int. Source® In-house Culture
2.6
2.5
2.4
2.3
U
M
z 2.2
c
taJ 2.6
M
s 2.5
i
2.4
0
2.3
2.2
Control Limits (± 2 Standard Deviations)
�
s
s
•
•
v
*
a
A
'ss- 06.0� 0� 06 4� I,,-
�$A'J 4$_1� 6%9.Sa 10 �5.1�_ .q 1y6 D�.Od 1Z 11 LQ ILI.Q� q5 p3 06 pB L4
Test date
48-hour LCSQ = median lethal concentration. An estimation of the sodium chloride concentration
which is lethal to 50% of the test organisms in 48-hours (calculated using ToxCalc).
Central Tendency (mean logarithmic LC,, converted to anti -logarithmic values)
Control Limits (mean logarithmic LC,, ± 2 standard deviations converted to anti -logarithmic values)
Laboratory Warning Limits (mean logarithmic L ,- = 2 coefficent of variations converted to anti-logari
USEPA Warning Limits (mean logarithmic LC,, ± SA 10 converted to anti -logarithmic values,
5A_jo = 10,11 percentile of CVs reported nationally by USEPA)
Ip.d and
�IYYvM Ey
utl. SY,M1PB!

Page 1 of
Acute LC50 Whole Effluent Toxicity Test, Species: C'eriodaphnia dubia
EPA-821-R-02-€112, Method 2002.0
Client Environmental Chemists, Inc.
Facility Pender County WWTP
Project # i-�-, Sample # -1:Lo Q&-LS
Dilution Preparation:
Test concentrations{96j
45
67-S
90
95
if'n
mL Sample
90
135
180
190
j
J
mL Dilution water
110
65
20
10
Total volume (mL)
200
Z(){)
ZU[l
200 1
200
themira! Analyses: Hours
24 418
Ana�
ConcentrationConcentrationlyst ��i___w_, r/( r l ./l!
PH(S.U.j � �a V rV�, ��,��
Dissolved oxygen (mg/L) �•� { "7`
Control, Con duCtivlty(Nm has/cm)
MHSW Alkalinity (mg/L CaCo,l
Hardness (mg/L CaCos) ! "�
Temperature('CI 't+�.$ �r ` 1S•,
Fly 03
45%
dissolved oxygen (mg/L)
JU
Conductivity (µmhos/cm)
Temperature ('CI �LI•� tZCs,() �S 1-
0issolved oxygen (mg/L)
Conductivity (}[mhos/cm)
Temperature{°C}++-� �� _ 'j-S.'l`
PH (S.U.).$� /t Ig
Dissolved oxygen (mg/L} - � `6
g0�
Conductivity (µmhos/cml 2 8> 90
Temperature (°C) f�`1 • /.�
Dissolved oxygen (mg/L) .� • e r� 7,
Conductivity (µmhos/cm) P-ro
Temperature ('Cl ZC�. r�ZC'.ti
Dissolved oxygen (mg/1.1
Snq/ Conductivity (pmhos/cmp�
} * _
Total residual chlorine (mg/L) K Q l0 p
Temperature(°C) ��•� "tS-� `LtI• l
0
NPDES # NC 0081736
Outfall 001
County New Hanover
Sample was not aerated or treated unless otherwise noted
this form. Sample was warmed to 25.0 t I.O'C in a warm
water bath and then diluted to the test concentrations using
moderately hard synthetic water (MHSW).
Analyst identified for each day, performed pH, dissolved oxygen and conductivity
measurements only, Temperatures performed at the time of test Initiation or termination by
the analyst performing the 3o91dty tes?. Alkalinity, hardness and total residual chlorine
performed by the analysts identified on the test specific bench sheets and transcribed to this
bench sheet,
chemitdl onctlyser.
Parameter Repnttiny limit iMathad number UTi
Serial number
pH 0.1 S.U. SM 450e-H+ 0-1011 R2fl 93312451
tlisiolvedaxygen S.Dmg/L 5M450e-06•2016 S2CE laplfl43ia
Cenrluctivity 14.6 Hmhas/cm SM 2510 B-loll R20 83312452
Alkaifnity 5.0 mg CaCPr/L SM Z3208.2n11 AlD 9931Rd52
Hardness 5.0 mg GaCO,/L SM 2340 C-loll applicable Nai applicable
7pia1 reNduel 0.1 mg/L ORtt3N 97.70-1977 d150 913g9113
chlorine
Temperature n.3°C SM 255flB•201D rmometer i4�6��
SOP
A79•Aevisian fi-EMhlhit AT9.3
0
NPDES # NC 0081736
Outfall 001
County New Hanover
Sample was not aerated or treated unless otherwise noted
this form. Sample was warmed to 25.0 t I.O'C in a warm
water bath and then diluted to the test concentrations using
moderately hard synthetic water (MHSW).
Analyst identified for each day, performed pH, dissolved oxygen and conductivity
measurements only, Temperatures performed at the time of test Initiation or termination by
the analyst performing the 3o91dty tes?. Alkalinity, hardness and total residual chlorine
performed by the analysts identified on the test specific bench sheets and transcribed to this
bench sheet,
chemitdl onctlyser.
Parameter Repnttiny limit iMathad number UTi
Serial number
pH 0.1 S.U. SM 450e-H+ 0-1011 R2fl 93312451
tlisiolvedaxygen S.Dmg/L 5M450e-06•2016 S2CE laplfl43ia
Cenrluctivity 14.6 Hmhas/cm SM 2510 B-loll R20 83312452
Alkaifnity 5.0 mg CaCPr/L SM Z3208.2n11 AlD 9931Rd52
Hardness 5.0 mg GaCO,/L SM 2340 C-loll applicable Nai applicable
7pia1 reNduel 0.1 mg/L ORtt3N 97.70-1977 d150 913g9113
chlorine
Temperature n.3°C SM 255flB•201D rmometer i4�6��
SOP
A79•Aevisian fi-EMhlhit AT9.3
A79•Aevisian fi-EMhlhit AT9.3

Page 2 of 2
Acute LCsa Whole Effluent Toxicity Test, Species: Cerioda hnia dv8ia
EPA-821-R-02-012, Method 2002.0
Client Pender County WWTP
Proiect # 0 O o Sample # Z0106 0. Z3
i
N.— Date
ieedfna
rep lNltptian a'Trrtnlnalbn
locailon
a®ndemHing
MKsw £ateh
Time
Analyst
T;m,,
Analyst
I
Imu W.'/P II
Tempgle
a
24 p� rt-
MO
nA8
rev orpanlmt —, red in holding d to 5 hour& prior to srss Inlllrtlun Ten — nat ratl d.11n1 thr Imt
Test Organism lnjormotion:
Organism Source:
In-house Culture
Source lorganlsms were pooled):
r]
Age:
< 24-hours old
Date and time organisms
were barn between:
Ole•A1•"►1 16%6 I`0
�.�� •'�„ a'Aoc'
Average transfervoiume:
<0.25ml
Tranafar hOwl l'tfarmatIQns
Pit (S If) , , 0
Tempe'atare rQ ZS • 0
5rrrvivoi Data (number of living organisms).
Hours
i
Control
45%
57.5%
Replicate
Replicate
Replicate
A
a C
0
E
F
G
H
I
!
K L
0
In,E
5
5 5
5
S
5
S
5
S
5
S
5
S-
5
S
5 5 5
S S S49
24
<,S
re,mEr•,uan
S
-sit
Mean suraivaE )!i,
f 6 t.
lbD
j•
r 7
Hours
90%
95%
200%
Replicate
Replicate
Replicate
M
N 0
P
0
R
5
T
u
v
W
x
0
tnilE,tipn
5
5
5
5
5
5
5
5
5
5
5
5
24
5
5
5
S
s
5 1
S
5
5
S
S
48
TermarlellPn
S
S
S
S
SE
S
S
S
5
Mean SuMva! ilCl
�
r � ,
f � �•
CGmmtnt codes: d = dead, u = unhealthy
Statisflrs;
Method
OaSoo_ 11"
Laws'
9536 confidence limit Iul
Upper
9SK a NdenCe fitnh It41
48-hour LCs,I {%j
l QQ]•
Comments:

Z Z-2395Z
.) Environmental Testing Solutions, Inc.
November 18, 2022
Mr. Jay Baker
Environmental Chemists, Inc.
6602 Windmill Way
Wilmington, NC 28405
ETS Project Number: 17451
Test Start Date: 11-09-22
Facility Tested: Pender County WWTP
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for samples received by Environmental Testing Solutions Inc.
Parameter
Test Procedure, Method Number
Result
Code
Ceriodaphnia 48-hour LC50 Acute
TAA36
>100%
EPA-821-R-02-012, Method 2002.0
All toxicity testing results required as part of your permit must be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TAA36.
Additionally, the DMR Reporting Form AT-1 must be signed and e-mailed or mailed to the following
address:
ATForms.ATl3(cD-ncdenr.gov
North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Please call if you have any questions concerning these results.
Sincerely,
Jim Sumner
Laboratory Supervisor
North Carolina Certificate Numbers: Biological Analyses: 037, Drinking Water: 37786, Wastewater: 600
South Carolina Certificate Number: Clean Water Act: 99053-001

Environmental Testing Solutions, inc.
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Effluent Toxicity Report Form - Chronic Pass/Fail and Acute LCso Date: November 18, 2022
Facility: Environmental Chemists, Inc. NPDES #: NC 0081736 Pipe #: 001 County: Pender
Pender County WWTP
Laboratory Performing Test: Environmental Testing Solutions, Inc., Certificate # 037 Comments
Signature of Operator in Responsible Charge (ORQ
ORC Phone / E-mail: Project #: 17451
Signature of Laboratory Supervisor: Sample #: 221109.23
e-Mail to: [e-mail]
Or Mail Original to: North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
North Carolina Ceriodaphnia Chronic Pass/Fail Reproduction Toxicity Test
ontrolOrganisms 1 2 3 4 5 6 / 8 9 lu 11 1,
lumber of Young Produced
ldult Survival: (L)ive, (D)ead
Effluent Percentage
.reatment 2 Organisms 1 2 3 4 5 6 7 8 9 10 11 1i
lumber of Young Produced 4+
kdult Survival: (L)ive, (D)ead
pH (S.U.) 1st Sample 2nd Sample 2nd Sample Test Start Date:
Control
Treatment 2 Collection (Start) Date:
t t= t= Sample 1 11-07-22
C M
w LA
w
Chronic Test Results
t-Stat / Rank Sum
1-Tailed Critical
% Reduction:
Percent
Average
Mortality
Reproduction
Control
Control
Treatment 2
Treatment 2
Control CV
PASS FAIL
%control organisms producing
3rd brood
D.O. (mg/L)
1st Sample
2nd Sample
2nd Sample
Sample Type/Duration
Control
Grab Comp. Duration
Treatment 2
Sample 1
X
z<-n
LCso/Acute Toxicity Test
(Mortality expressed as %, combining replicates.)
Concentration (%)
Mortality (%)
Control
45
67.5
90
95
100
0
0
0
0
1 0
0
11-09-22
Alkalinity (mg CaCO3/L
Hardness (mg CaCO3/1_)
Conductivity (µmhos/cm)
Total Residual Chlorine (mg/L)
Sample Temp. at Receipt (°C)
o a`, to
j n
to
58
110
85
32
312
2630
< 0.10
1.5
LC50 = >100% Method of Determination
95% Confidence Limits Trimmed Spearman Karber r t
C M C
NC to NC Probit w to w
X Other: Visual Inspection 17.2517.191 Control 1 7.8 7.6
7.55 7.86 High Conc. 1 7.7 7.8
Organism Tested: Ceriodaphnia dubia Duration: 48-hour pH (S.U.) DO (mg/L)
DWR Report Form AT-1

Acute LC50 Whole Effluent Toxicity Test, Species: Ceriodaphnia dubia
EPA-821-R-02-012, Method 2002.0
Client Environmental Chemists, Inc.
Facility Pender County WWTP
Project # 1om%1 Sample # -mlj Oc,,13
Dilution Preparation:
Test concentrations
45
67.5
90
95
100
ml. Sample
90
135
180
190
200
mL Dilution water
110
65
20
10
0
Total volume (ml.)
200
200
200
200
200
NPDES # NC 0081736
Clutfall 001
County New Hanover
Sample was not aerated or treated unless otherwise noted on
this form. Sample was warmed to 25.0 t 1.0°C in a warm
water bath and then diluted to the test concentrations using
moderately hard synthetic water (MHSW).
Chemical Analyses:
Hours
0
24
48'
Concentration
Analyst
TLC kNJ
ZZ
, v
Control,
MHSW
PH (S.U.)-ZS
1.20
Dissolved oxygen (mg/L)
CJ
7
Conductivity (µmhos/cm)
312
Alkalinity (mg/L CaCO3)
5 e
Hardness (mg/L CaCO3)
& S
Temperature(°C)
-,—,k- &
ZS 0
-ts-`
45%
PH (S.U.)
q!aq
-;-53
Dissolved oxygen (mg/L)
�'y�
W
, °
(0
Conductivity (µmhos/cm)
13,90
Temperature (°C)
Zk. &
—LA.�
�.fl
PH (S.U.)
�.SL-�
3 014
�. U-�
Dissolved oxygen (mg/L)
167.5%
Conductivity (µmhos/cm)
(O�U
Temperature(°C)
ZS��
90%
PH (S.U.)
Dissolved oxygen (mg/L)
Conductivity (µmhos/cm)
23q()
Temperature (°C)
95%
PH (S.U.)
-� Le
7.�3
Dissolved oxygen (mg/L)
Conductivity (µmhos/cm)
2L4(?U
Temperature (°C)
ly•�
'�,'
ZS.'L
100%
Total
PH (S.U.)
�•�S
�$
�D
Dissolved oxygen (mg/L)
Conductivity (µmhos/cm)
residual chlorine (mg/L)
to, t Q
Temperature
(°C) I
—LS - Q
'U. -L
'LS,
Page 1 of 2
Analyst identified for each day, performed pH, dissolved oxygen and conductivity
measurements only. Temperatures performed at the time of test initiation or termination by
the analyst performing the toxicity test. Alkalinity, hardness and total residual chlorine
performed by the analysts identified on the test specific bench sheets and transcribed to this
bench sheet.
Chemical analyses:
Parameter
Reporting limit
Method number
Meter
Serial number
PH
0.1 S.U.
SM 4500-H+B-2011
Accumet AR20
93312452
Dissolved oxygen
1.0 mg/L
SM 4500.0 G-2016
YSI Model 52CE
1BD104324
Conductivity
14.9 pmhos/cm
SM 2510 B-2011
Accumet AR20
93312452
Alkalinity
5.0 mg CaCOdL
SM 2320 B-2011
Accumet AR20
93312452
Hardness
5.0 mg CaCO3/L
SM 2340 C-2011
Not applicable
Not applicable
Total residual
chlorine
0.1 mg/L
ORION 97-70-1977
Aecumet A8250
92349123
Temperature
0.1°C
SM2550B-2010
Digital Thermometer
i3D�l.�lt�S
A�ttAu►�rti = t10 � ��. C.(0 �
LL C-CO y
SOP AT9-Revision 6—Exhibit AT9.3

Page 2 of 2
Acute LCso Whole Effluent Toxicity Test, Species: Ceriodaahnia dubia
EPA-821-R-02-012, Method 2002.0
Client Pender County WWTP
Project # ri A%\ Sample # 'L'L 11 Oct. 13
Hours
Date
Feeding
Test Initiation or Termination
location
Randomizing
MHSW Batch
Time
Analyst
Time
Analyst
Inculcator/Shelf
Template
„a��n
1,L�
• OSO�
12Ct0
�J
�IrPL�
Il•13}11
Il'OA
o
ZE.
24
IIe10.ti'L
11�
48
rnms..ra,
11"11.• baL.
tSS
•••• • ••..+ - n•n •a . •u a nnm. s•na, . , rest organisms were not rec curing me test
Test Organism Information:
Organism Source:
In-house Culture
Source (organisms were pooled):
11-01• VL
Age:
< 24-hours old
Date and time organisms
were born between:
1 %_ -%%_ 1 '�
VC) 1X-Opl•ZL Owe
Average transfer volume:
<0.25ml.
Transfer bowl information:
pH (S.0 ): ,•fib
Temperature rQ • 0
Survival Data (number of living organisms):
Hours
Control
45%
67.5%
Replicate
Replicate
Replicate
A
B
C
D
E
F
G
H
I
1
K
L
0
Initiation
5
5
5
5
5
5
5
5
5
5
5
5
24
S
S
S
S
S
5
5
5
5
5
5
S
48
Termination
S
5
C5
S
S
S
S
S
S
S
S
S
Meansuntival(%)
L ' .
` 1 ool.
Hours
90%
95%
100%
Replicate
Replicate
Replicate
M
N
O
P
Q
R
S
T
U
V
W
X
0
Initiation
5
5
5
5
5
5
5
5
5
5
5
5
24
S
S
S
S
S
S
S
S
S
S
S
S
48
Termination
S
S
S
S
S
S
S
5
5
S
S
S
Mean SurWval (%)
wnnucm s.w— u = ue = unneanny
Statistics:
Method
1'
V , f IkV
Lower
C
95%confidence limit (%)
r_J
Upper
95%confidence limit 1%)
1 /'
N
48-hour I.C. (%)
> 100 j

u e-v
.:;;>? "4/a✓, 04,
Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain-of-Cus
Facility Environmental Chemists, Inc. NPDES # NCO081736
Pender County W W TP Purchase order.
351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
)dy Form
Pipe a- 001 County New Hanover
Species Ceriodaphnia dubia Effluent dilution 45, 67.5, 90, 95, 100%
Test type 48-hour Acute LCso Parameter code TAA3B
Sample information: (to be completed by sample collector)
Composite sample Sample location: eStart date: date: li 2o22 Time: O % 0d Volume collected for testing: a .n.
End date- 116 2022 Time: 01 0IP Number of containers filled for test mg:
Number of s pl per hour: 7 Method of transport to laboratory. t0T
Chilled during collection? _ yLJ Comments
If chilled, specify temperature
Triple rinse sample container with sample before filling. Completely rill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0"C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample`
collected by:
Kw �111-t-,VZ- Z
Ikint Sigwmre Datc.:n:7lime
Relinquished by: Received by:
ilu l� &�� / 1l AZ2 e2 lr z
Ihml ligwnue Dme onJ ame Itml 5q-- #50emu.,
Relinquished bv: Received bv:
I
live
Sample receipt information:
(to be completed by ETS personnel)
Relinquished to ETS by: Received at ETS by:
re 10,16
3J
I : o Dale and lime Pnnt .. Dam wd lime
Custody seals intact?:
Samples received in good condition": a
Y, N..
Tracking number:
Comments:
Sample temperature upon receipt at ETS ("C):
Total residual chlorine upon receipt at ETS: = =
tDPD Presence Abse'nsse' Indicator. NIDL = 0 10 mg/L) "' l Ab—,
T"1 Project number: � L Sample number lu oq' 23

Ceriodaphnia dubia
Acute Reference Toxicant Control Chart
Environmental Testing Solutions Inc. Source: In-house Culture
2.6
2.5
2.4
2.3
2.2
2.6
2.5
2.3
2.2
Control Limits (± 2 Standard Deviations)
• -------------------------..------
• • • • • • • • _ 0 W _ • • • • •
— •,----..._--------------- • •
Warning Limits
• ..._.._.._.. .._.._.._.._.. �._.._.._.._.. .._
091a 10 `I,*-
,1 Oti 1�; 0� I'll,1A' 11
11
0� 11
11 DA OS 1yA'' 11 Q� 1ti 11 11 11 11 11 11 11
1,10611
Test date
• 48-hour LC50 = median lethal concentration. An estimation of the sodium chloride concentration
which is lethal to 50% of the test organisms in 48-hours (calculated using ToxCalc).
Central Tendency (mean logarithmic LC50 converted to anti -logarithmic values)
Control Limits (mean logarithmic LC50 ± 2 standard deviations converted to anti -logarithmic values)
_.. _. Laboratory Warning Limits (mean logarithmic LC50 ± 2 coefficent of variations converted to anti -logarithmic values)
• . • • • . • USEPA Warning Limits (mean logarithmic LCSO ± SA 10 converted to anti -logarithmic values,
SA 10 = loth percentile of Us reported nationally by USEPA)
aed.M
R ..W by
llm S..—
\51

Z 3-Oo35`�
a
Environmental Testing Solutions, Inc.
December 19, 2022
Mr. Jay Baker
Environmental Chemists, Inc.
6602 Windmill Way
Wilmington, NC 28405
ETS Project Number
Test Start Date:
Facility Tested:
17488
12-07-22
Pender County WWTP
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for samples received by Environmental Testing Solutions Inc.
Parameter
Code
Test Procedure, Method Number
Result
PASS
FAIL
Pimephales Pass/Fail Acute Toxicity Test
v
TGE6C
EPA-821-R-02-012, Method 2000.0
/�
•
All toxicity testing results required as part of your permit must be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE6C.
Additionally, the DMR Reporting Form AT-2 must be signed and e-mailed or mailed to the following
address:
ATForms.ATB(aD-ncdenr.gov
North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Please call if you have any questions concerning these results.
Sincerely,
Qim umner
Laboratory Supervisor
North Carolina Certificate Numbers: Biological Analyses: 037, Drinking Water: 37786, Wastewater: 600
South Carolina Certificate Number: Clean Water Act: 99053-001

`— r--- .7
EnWr enWI Testing Solutions Inc
Effluent Toxicity Report Form - Acute Pass/Fail
Facility: Environmental Chemists, Inc. NPDES #: NC 0081736
Pender County WWTP
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Date: December 19, 2022
Pipe #: 001 County: Pender
Laboratory Performing Test: Environmental Testing Solutions, Inc., Certificate # 037 Comments
Signature of Operator in Responsible Charge (ORC):
ORC Phone / E-mail: Project #: 17488
Signature of Laboratory Supervisor: Sample #: 221207.11
e-Mail to:
Or Mail Original to: North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
North Carolina Acute Pass/Fail Toxicity Test
Collection Date: 12-05-22
Collection Time: 0900
Test Start Date: 12-07-22
Sample/Type/Duration
c
o
@
U
7
X
H
Alkalinity (mg CaCo3/L)
Hardness (mg CaCO3/L)
Conductivity (µmhos/cm)
Total Residual Chlorine (mg/L)
Sample Temp. at Receipt (°C)
Grab
Comp.
Duration
X
24-h
62
84
311
133
< 0.10
2.6
Organism Tested
Pimephales promelas
Control
7.27 7.28
pH (S.U.)
Treatment
7.33 7.24
o c
N w
Control
7.7 7.8
D.O. (mg/L)
Treatment
Mortality
Replicate
Mean Mortality
Treatment 1(Control)
A
B
C
D
Treatment 2 (Exposure)
A
B
C
D
Concentration
Tested
H
Note: If mean control mortality exceeds 10°Y, the test is considered invalid.
0% 0% 0% 0%
0% 0% 0% 0%
Calculate using Arc -Sine Square t-Stat / Rank Sum NC PASS
Root transformed data. 1-Tailed Critical NC FAIL
If the absolute value of the calculated t is less than or equal to the absolute value of the tabular t, check PASS.
If the absolute value of the calculated t is greater than the absolute value of the tabular t, check FAIL.
If all vessels within each treatment have the same response but the treatment two response is greater than the control, check fail.
DWR Report Form AT-2

Page 1 of 1
Acute Pass/Fail Whole Effluent Toxicity Test, Species: Pimephales promelas
EPA-821-R-02-012, Method 2000.0
Client Environmental Chemists, Inc.
Facility Pender County WWTP
Project # I -'ARR
Test Concentration (Acute Limit) 90%
Sample was not aerated or treated unless otherwise noted on this form. Sample was warmed to 25.0
± 1.0eC In a warm water bath and then diluted to the test concentration with moderately hard
synthetic water.
NPDES # NCO081736
Clutfall 001
County Pender
Dilution
preparation:
mL
mL
Total volume
Sample
Dilution water
ml
990
110
1100
Hours
Date
Feeding
Test Initiation or Termination
Location
Randomizing
Sample Number
MHSW Batch
Time
Analyst
Time
Analyst
Incubator/Shelf
Template Color
Initiation
Initiation
t-z-O- Vu
' °S 1100
11.500
1 F
P t Q V_
z-,~.►zcn. t t
I t-30- zti ►J
24
Terrninalbn
c
`
Chemical Analyses:
Initial
Final
Concentration
Analyst
Control
MHSW
pH (S.U.)
Dissolved oxygen (mg/L)
Conductivity (µmhos/cm)
Alkalinity (mg/L CaCO3)
10 Z
Hardness (mg/L CaCO3)
IC�
Temperature (°C)
�•{,�
Test
Concentration
PH (S.U.)
/Le�,
Dissolved oxygen (mg/L)
Conductivity (µmhos/cm)
Jai
Temperature (°C)
'Is ,'L
'LS -Z
100%
pH (S.U.)
�20
Dissolved oxygen (mg/L)
A
Conductivity (µmhos/cm)
133
Total residual chlorine (ni
Z0, 16
Survival Data (number of living organisms):
Analyst ioendrled Tor eacn day, performed pH, dissolved oxygen and conductivity measurements only.
Temperatures performed at the time of test initiation or termination by the analyst performing the toxicity
test. Alkalinity, hardness and total residual chlorine performed by the analysts identified on the test specific
bench sheets and transcribed to this bench sheet.
Chemical analyses:
Parameter
Reporting limit
Method number
Meter
Serial number
pH
0.1 S.U.
SM 4500-H+ B-2011
Accumet AR20
93312452
Dissolved oxygen
1.0 mg/L
SM 4500-0 G-2011
YSI Model 52CE
18DIG4324
Conductivity
14.9 pmhos/cm
SM 2510 B-2011
Accumet AR20
93312452
Alkalinity
5.0 mg CaCO,/L
SM 2320 B-2011
Accumet AR20
93312452
Hardness
S.0 mg CaCO,/L
SM 2340 C-2011
Not applicable
Not applicable
Total residual chlorine
0.1 mg/L
ORION 97-70.1977
Accumet A8250
92349123
Temperature
0.1 eC
SM 2SSOB-2010
Digital Thermometer I
I!l0(Aq 5
Control
Test Concentration
Hours
Replicate
Replicate
A
B
C
D
E
F
G
H
0
10
10
10
10
10
10
10
10
Initiation
24
ID
/D
10
10
10
/0
10
ID
Termination
Mean survival: ((� �.
Mean survival:
�.unnncna wu=p. u — u..u, u = ulnledltny, UJ = utflt Spines, s = SCre55eO
Test Organism Information:
Organism Source:
In-house Culture
Spawn date:
It -VL_
Age (1 to 14 days old):
t\ 19-I L 105vTObetween:
Date and time organisms were born
1-1.01-n am&
Average transfer volume:
< 0.25 mL
Transfer bowl information:
pH (S.U.): 1,"1
Temperature (°C):
'LS. 2,
ern is ading requirement Tor Treshwater species of < 0.40 g/L at 25.0"C has been
documented by ETS to never be exceeded using 1 to 14 day old A promelas .
Statistics:
Method:
`SV^l I NSf
t-Stat or Rank Sum:
N C
1-Tailed Critical:
NC,
Pass or Fail:
Q�
SOP AT18-Revision 6-Exhibit AT18.2

351 Depot Street
Asheville. NC 28801
Phone: [phone]
Far: [phone]
Environmental Testing Solutions, Inc.
Whole Effluent Toxicitv Chain-of-Custodv Form
Facility: Environmental Chemists, Inc. NPDES #: NCO081736 Pipe # 001 County: New Hanover
Pender County W WTP Purchase order:
Species: Pimephales promelas Effluent dilution: 90%
Test type: 24-hour Pass/Fail Acute Parameter code: TGE6C
Sample information: (to be completed by sample collector)
Composite sample: Sample location: '_r—er eo�Yt
Start date: / z - 2Z Time: (,J, p 00 Volume collected for testing: e- Cisl
End date: % 2- 6 - Z- 2 O Time: /vim Number of containers filled for testing:
Number of samples per hour: q Method of transport to laboratory: ?oe f
Chilled during collection? 1/e-9 Comments:
If chilled, specify temperature: " S -
Triple rinse sample container with sample before filling. Completely fill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0aC upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collected by:
�m sg-teae Dmc mud time
Relinquished by: > Received by:
141/ �a �Z b z 1vo-r-,2 -t,
11nm sigtuturc f Dadand it— I'nnt sitwtwa Irate and time
Sample receipt information: (to be completed by ETS personnel) ~
'� O
Relinquished to ETS by: Received at ETS by:
aY k ra())IA "ad I bti- �2•$ d
Nat s.saatme Date as time tttm sisal— Data and time
Custody seals intact?: =
Y. N,, Nw used
Samples received in good condition?: tD
Y. Nu
Tracking number: 06
Comments:
Sample temperature upon receipt at ETS (aC):
Total residual chlorine upon receipt at ETS: =
(DPD PresenceiAbsense Indicator. MDL = 0 10 mg/L) P—ri, Abaem
Project number`io Sample number: (• ��

�3 Environmental Testing Solutions, Inc.
1.2
1.1
_ 1.0
V
Y
taro
0.9
0
to
1.4
L
s
,mod. 1.2
1.0
0.8
Pimephales promelas
Acute Reference Toxicant Control Chart
Source: In-house Culture
Control Limits (± 2 Standard Deviations)
• • \. ��— — — — — — — — a — — — — — .
Warning Limits
0� 1ti o91a 10 OS tit 0� 1tiA� 0V'O 'o11ti Oti0 S0103.15 1A.OS 0" 03 0 0` 0�-"., Oti091ti109 V - 0�':L1 0� 11 titi
Test date
• 48-hour LC50 = median lethal concentration. An estimation of the potassium chloride concentration
which is lethal to 50% of the test organisms in 48-hours (calculated using ToxCalc).
Central Tendency (mean logarithmic LC50 converted to anti -logarithmic values)
— — .— Control Limits (mean logarithmic LC50 ± 2 standard deviations converted to anti -logarithmic values)
_ .. —. Laboratory Warning Limits (mean logarithmic LC50 ± 2 coefficent of variations converted to anti -logarithmic values)
USEPA Warning Limits (mean logarithmic LC50 ± SA 75 converted to anti -logarithmic values,
SA 75 = 75th percentile of CVs reported nationally by USEPA)
med.e
Vjn. W—d by
nm s�mn.r
T1

Perlmutter, Gary
From: Kurt Lonander <[e-mail]>
Sent: Friday, March 3, 2023 12:35 PM
To: Perlmutter, Gary
Subject: [External] Permit draft
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Mr. Perlmutter,
We would like to officially change the name of this facility to (Melinda K. Knoerzer Wastewater Treatment Facility) this is
in reference to the Permit # NC008736.
Kurt Lonander
o'-�
p t
F'endr+ [nwnCY Uiu��
Kurt Lonander
Waste Water Treatment Plant Superintendent
Pender County Utilities
469 Quality Way
Wilmington, NC 28401
910-512-0285
i

A
B C D E F I G I H I I I J K L M
N O 1 P
1
NPDES/PT POC Review Form
Version:2022.06.22
2
1. Facility's General Information
3
Date of (draft) Review
xx/xx/2022
c. POC review due to:
e. Contact Information
4
Date of (final) Review
Municipal NPDES renewal
0
Regional Office (RO)
Wilmington
5
NPDES Permit Writer (pw)
Gary Perlmutter
HWA-AT/LTMP Review
❑
RO PT Staff
Tom Tharrington
RO NPDES Staff
Helen Perez
6
Permittee-Facility Name
Pender County Utilities - Melinda B.
Knoerzer Adaptive Ecology WWTF
New Industries
❑
Facility PT Staff, email —7
Kenny Keel, <kkeel(c�pendercountync.gov>
7
NPDES Permit Number
NCO081736
WWTP expansion
❑
f. Receiving Stream
8
NPDES Permit Effective Date
7/31/2021
Stream reclass./adjustment
❑
Outfall 1
9
Chemical Addendum Submittal Date
Outfall relocation/adjustment
❑
Receiving Stream:
Cape Fear River
QA, cfs:
8142
10
NPDES Permit Public Notice Date
7Q10 update
❑
Stream Class
C-Sw; PNA
7Q10 (S), cfs:
918
11
eDMR data evaluated from:
to
Other POC review trigger, explain:
Oufall Lat.
34.19.26 N
Outfall Long.
78.00.50 W
12
a. WWTP Capacity Summary
Outfall II
13
Current Permitted Flow, mgd
0.5
Designed Flow,
m d
Receiving Stream:
QA, cfs:
14
Permitted SIU Flow, mgd
0.02
d. IU Summary
Stream Class
7Q10, cfs:
15
b. PT Docs. Summary
# IUs
1
Oufall Lat.
Outfall Long.
16
L
IWS approval date
# SIUs
1
Is there a PWS downstream of the Facility's Outfalls?
❑ YES 0 NO
17
N
L/STMP approval date:
NA
# CIUs
0
Comments:
18
E
a
U)
W
HWA approval date
NA
I
# NSCIUs
An undated HWA on file shows the IU Acme Smoked Fish to have load limits for TSS and Ammonia to be > 5% of the Allowable Industrial Loading
allocation, thereby meeting the criteria of a Significant Industrial User (SIU). Facility ORC was contacted to re-evaluate status of industrial users as
part of its pretreatment program development.
19
# IUs w/Local
Permits or Other
ITypes
20
Z
2. Industrial Users' Information.
21
#
Industrial User (IU) Name
IU Activity
IU Non Conventional Pollutans & Toxic Pollutant
IUP Effective Date
22
1
Acme Smoked Fish
Seafood
rocessi
NH3-N, As, Cd, Cr, Cu, CN, Pb, Hg, Ni, Se, Ag, Zn, TN, TP
NA; No UP
23
2
24
3
25
4
26
5
31
Comment:
The above listed pollutants are derived from the undated HWA spreadsheet with a maximum allowable headworks loading. These may be included in the pretreatment program, currently under development.
32
3. Status of Pretreatment Program (check all that apply)
33
Status of Pretreatment Program (check all that apply)
34
1) facility has no SIU's, does have Division approved Pretreatment Program that is INACTIVE
2) facility has no SIU's, does not have Division approved Pretreatment Program
facility has SIUs and DWQ approved Pretreatment Program
35
11123)
36
37
❑
3a) Full Program with LTMP
3b) Modified Program with STMP
4) additional conditions regarding Pretreatment attached or listed below
5) facility's sludge is being land applied or composted
6) facility's sludge is incinerated (add Beryllium and Mercury sampling according to § 503.43)
38
❑
39
❑
40
❑
41
❑
42
p
7) facility's sludge is taken to a landfill, if yes which landfill:
43
p
8) other
44
Sludge Disposal Plan:
The facility has a contractor (McGill Associates) haul off digested sludge to composting.
45
46
47
1 Sludge Permit No:
Page 1 81736 POC Review Form

AlB
I C D I E I F I G I H I I I J I K I L I M I N 1 O 1 P
48
4. LTMP/STMP and HWA Review
49
PW: Find L/STMP document, HWA spreadsheet, DMR, previous and new NPDES permit for next section.
50
a
J
c
tU
a
Parameter of Concern
(POC) Check List
New
NPDES
POC
Previous
NPDES
POC
Required by
EPA PT(1)
POC due to
Sludge (2)
POC due to
SIU (3)
POTW
POC (4)
a
/o
Removal
Rate
L/STMP
Effluent Freq
NPDES
Effluent Freq
PQLs review
Comment
51
PQL from
L/STMP, ug/I
Required PQL
per NPDES
permit
Recomm.
PQL, ug/I
52
❑
Flow
❑
❑
❑
❑
53
❑
BOD
Li
❑
❑
❑
54
❑
TSS
❑
❑
❑
❑
55
❑
NH3
❑
❑
❑
❑
56
❑
Arsenic
❑
❑
❑
❑
❑
57
❑
Barium
❑
❑
❑
❑
❑
58
❑
Beryllium(5)
❑
❑
❑
❑
❑
59
❑
Cadmium(1)
❑
❑
❑
❑
❑
❑
0.5
60
❑
Chromium(1)
❑
❑
❑
❑
❑
❑
10.0
61
❑
Copper(1)
❑
❑
❑
❑
❑
❑
2.0
62
❑
Cyanide
❑
❑
❑
❑
❑
63
❑
Lead(1)
❑
❑
❑
❑
❑
❑
2.0
64
❑
Mercury(5)
❑
❑
❑
❑
❑
0.001
65
❑
Molybdenum
❑
❑
❑
❑
❑
10.0
66
❑
Nickel(1)
❑
❑
❑
❑
❑
❑
5.0
67
❑
Selenium
❑
❑
❑
❑
❑
68
❑
Silver
❑
❑
❑
❑
❑
1.0
69
❑
Zinc(1)
❑
❑
❑
❑
❑
❑
70
❑
Sludge Flow to Disposal
❑
❑
❑
71
❑
% Solids to Disposal
❑
❑
❑
72
❑
Oil & Grease
❑
❑
73
❑
TN
❑
❑
❑
❑
74
❑
T P
❑
❑
❑
❑
75
❑
❑
❑
❑
❑
76
❑
❑
❑
❑
❑
77
❑
❑
❑
❑
❑
78
❑
❑
❑
❑
❑
79
❑
❑
❑
❑
❑
80
❑
❑
❑
❑
❑
81
❑
❑
❑
❑
❑
82
Footnotes:
(1) Always in the LTMP/STMP due to EPA -PT requirement
(2) Only in LTMP/STMP if listed in sludge permit
(3) Only in LTMP/STMP while SIU still discharges to POTW
(4) Only in LTMP/STMP when pollutant is still of concern to POTW
(5) In LTMP/STMP, if sewage sludge is incinerated
Please use blue font for the info updated by pw
Please use red font for POC that need to be added/modified in USTMP sampling plan
---;p nr nge font and strikethrough fnr PQC that may be removed from I (STRAP POG list/sampling plan
Blue shaded cell (D60:1-182): Parameters usually included under that POC list
83
84
85
86
87
88
89
90Plp;i,;p
91
92
5. Comments
93
Facility Summary/background information/NPDES-PT regulatory action:
POC to be added/modified in L/STMP:
94
ORC's comments on IU/POC:
95
POC submitted through Chemical
Addendum or Supplemental Chemical
Datasheet:
96
Additional pollutants added to L/STMP due
to POTW s concerns:
97
NPDES pw's comments on IU/POC:
98
6. Pretreatment updates in response to NPDES permit renewal
99
NPDES Permit Effective Date
180 days after effective (date):
7 Permit writer, please add list of required/recommended PT updates in NPDES permit cover letter.
Page 2 81736 POC Review Form

NORTH CAROLINA 2022 303(D) LIST
Upper Cape Fear Cape Fear River Basin
AU Name AU Number Classification AU_LengthArea AU —Units
AU ID Description
Gulf Creek 18-5-(2) WS-IV;CA 03 FW Mil .es
F4746 From a point 0.2 mile upstream of mouth to Cape Fear River
PARAMETER IR CATEGORY CRITERIA STATUS j REASON FOR RATING 303D YEAR
(Fish Community (Nar, AL, FW) 5 ] fxceeding Criteria Fair, Poor or Severe Bioclassification 2000
M Imr
Cape Fear River Basin 03 13000 Lower Cape Fear
CAPE FEAR RIVER 18-(63)a C;Sw 3.8 FW Miles
4387 From raw water supply intake at Federal Paper Board corporation (Riegelwood) to Bryant Mill Creek
PARAMETER IR CATEGORY CRITERIA STATUS REASON FOR RATING 303D YEAR
Benthos (Nar, AL, FW) 5 Exceeding Criteria Fair, Poor or Severe Bioclassification 1998
CAPE FEAR RIVER
18-(71)a1
SC
10.6 S Acres
135061 iFrom upstream mouth of Toomers
Cr. To Railroad bridge at Navassa
PARAMETER IR CATEGORY
CRITERIA STATUS � REASON FOR RATING
303D YEAR
Dissolved Oxygen (5 mg/I, AL, SW) 5
Exceeding Criteria
F—
1998
CAPE FEAR RIVER
18-(71)a2a
SC
290.0 S Acres
13994i (From Railroad bridge to Hwy 17 bridge.
PARAMETER IR CATEGORY
CRITERIA STATUS
REASON FOR RATING
303D YEAR
Dissolved Oxygen (5 mg/I, AL, SW) 5
Exceeding Criteria
1998
Hexavalent Chromium Fish Tissue Advisory 5
Exceeding Criteria
DHHS Fish Consumption Advisory
2020
(Advisory, FC, NC)
Arsenic Fish Tissue Advisory (Advisory, FC, NC) 5
Exceeding Criteria
DHHS Fish Consumption Advisory
2020
CAPE FEAR RIVER
18-(71)a2b
SC
149.8 S Acres
13995 From Hwy 17 bridge to Greenfield
Creek
PARAMETER IR CATEGORY
CRITERIA STATUS
REASON FOR RATING
303D YEAR
Dissolved Oxygen (5 mg/I, AL, SW) 5
Exceeding Criteria
Exceeding Criteria with Statistical
1998
Confidence
CAPE FEAR RIVER
18-(71)a3
SC 1,274.9 S Acres
13732 From Greenfield Creek to Barnards
Creek
PARAMETER IR CATEGORY
CRITERIA STATUS
REASON FOR RATING
303D YEAR
Dissolved Oxygen (5 mg/I, AL, SW) 5
Exceeding Criteria
1998
Copper (3 µg/I, AL, SW) 5
IlExceeding Criteria
Legacy Category 5 Total Metals
2008
Assessment
6/7/2022 NC 2022 303d List- Approved by EPA 4/30/2022 Page 20 of 192

9/30/22, 11:42 AM NCDEQ-DWR :: Benthos Site Details
NC Division of Water Resources -
Benthos Site Details
Waterbody Location Station ID
CAPE FEAR R BE FEDERAL PAPER BB278
County 8 digit HUC Latitude Longitude
Fender �03030005 34.364444 —-78.155556
Level IV Ecoregion Drainage Area (mi2) Stream Width (m)
Mid -Atlantic Floodplains and Low 5420.0 50.0
Terraces
I
Landuse Percentages
Date Bioclas:
21 Jul 1998 Fair
Elevation (ft)
6
Stream Depth (m)
12.0
Forest Developed Impervious Cultivation Grass / Shrub
W� Water
0.0 0.0 0.0 0.0
0.0/0.0
0.0 0.0
Water Quality Parameters
1998
1993
Temperature (°C)
32.0
0.0
�Dissolved Oxygen(mg/L)
6.2
0.0
Specific Conductance (NS/cm)
461.0
0.0
pH (s.u.)
7.5
0.0
Substrate Percentages
1998
1993
Boulder
0
0
Cobble
0
0
Gravel
0
0
Sand
70
70
Silt
10
30
Sample Date Sample ID
21 Jul 1998 7614
10 Aug 1993 6322
Other
Habitat Assessment Scores (max score)
Water Clarity
Method ST EPT
Full Scale 34 4
Full Scale 32 5
56
Barren
0.0
BI EPT BI Bioclass
6.63 4.66 Fair
6.81 4.90 Fair
https://www.ncwater.org/?page=672&SitelD=BB278 1/1

NORTH CAROLINA 2022 INTEGRATED REPORT
Lower Cape Fear Cape Fear River Basin
AU Name AU Number Classification AU LengthArea AU Units
AU ID Description
CAPE FEAR RIVER 1 18-(63)a C;Sw 3.8 FW Miles
4387 From raw water supply intake at Federal Paper Board corporation (Riegelwood) to Bryant Mill Creek
2022 Water Quality Assessments
(PARAMETER IR CATEGORY CRITERIA STATUS
Water Temperature (322C, AL, LP&CP) 1 Meeting Criteria
Dissolved Oxygen (4 mg/I, AL, FW) 1 Meeting Criteria
pH (4.3 su, AL, Sw) 1 Meeting Criteria
pH (9.0, AL, FW) 1 Meeting Criteria
Turbidity (50 NTU, AL, FW miles) 1 Meeting Criteria
Benthos (Nar, AL, FW) 5 Exceeding Criteria
Fecal Coliform (GM 200/400, REC, FW) 1 Meeting Criteria
6/7/2022 NC 2022 INTEGRATED REPORT -Category 5 Approved by EPA 4/30/2022 Page 190 of 1346

Lower Cape Fear
AU Name
AU ID Description
NORTH CAROLINA 2022 INTEGRATED REPORT
Cape Fear River Basin
AU Number Classification AU LengthArea AU Units
CAPE FEAR RIVER 18-(63)b C;Sw
4388 From Bryant Mill Creek to upstream mouth of Toomers Creek
2022 Water Quality Assessments
(PARAMETER IR CATEGORY
Water Temperature (329C, AL, LP&CP) 1
Dissolved Oxygen (4 mg/I, AL, FW) 1
pH (4.3 su, AL, Sw) 1
pH (9.0, AL, FW)
Turbidity (50 NTU, AL, FW miles)
Chloride (230 mg/l, AL, FW)
Flouride (1.8 mg/I, AL, FW)
Beryllium Dissolved Chronic (6.5, AL, FW)
Chlorophyll a (40 µg/l, AL, NC)
Fecal Coliform (GM 200/400, REC, FW)
Chromium Dissolved Chronic (Calcuated, AL, FW)
Arsenic Dissolved Chronic (36 µg/l, AL, SW)
Cadmium Dissolved Chronic (8.8, AL, SW)
Copper Dissolved Acute (4.8 µg/I, AL, SW)
Nickel Dissolved Chronic (8.2, AL, SW)
Silver Dissolved Chronic (0.1 µg/l, AL, SW)
Zinc Dissolved Chronic (81 µg/I, AL, SW)
Lead Dissolved Chronic (8.1, AL, SW)
11
11
3a
3a
3a
3a
1
3a
1
3a
3a
3a
3a
3a
3a
18.5 FW Miles
CRITERIA STATUS
Meeting Criteria
Meeting Criteria
Meeting Criteria
Meeting Criteria
Meeting Criteria
Data Inconclusive
Data Inconclusive
Data Inconclusive
Data Inconclusive
Meeting Criteria
Data Inconclusive
Meeting Criteria
Data Inconclusive
Data Inconclusive
Data Inconclusive
Data Inconclusive
Data Inconclusive
Data Inconclusive
6/7/2022 NC 2022 INTEGRATED REPORT -Category 5 Approved by EPA 4/30/2022 Page 191 of 1346

From:
Kurt Lonander
To:
Perlmutter, Gary
Subject:
[External] Pender County WWTP NCO081736
Date:
Wednesday, October 19, 2022 4:45:34 PM
Attachments:
imaae001.Dna
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an
attachment to Report Spam.
Mr. Perlmutter,
Per are conversation. I am working on changing the effluent grab location. This is to give us a better
representative number for temperature of the water before discharge. Currently the UV units
maybe giving us a higher reading. I am in contact with our local DEQ office, and I will not make any
change on reporting or sampling until we get the go ahead. We are planning on pulling some parallel
samples for the field agent when they come out.
Thank you,
Kurt Lonander
��
p4c1
vkndr eo .'Cy UI il.i
Kurt Lonander
Waste Water Treatment Plant Superintendent
Pender County Utilities
469 Quality Way
Wilmington, NC 28401
910-512-0285

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United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 IN 2 u 3 I NCO081736 111 121 22/06/28 I17 18 LC] I 19 I s I 201 I
6
211IIIII 111111III II III III1 I I IIIII IIIIIIIII II J
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
67
I 72 I n, I 71 I 74 79 I I I I I I I80
701 I 71 I LL -1 I I
LJ
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
09:OOAM 22/06/28
17/12/01
Melinda B Knoerzer Adaptive Ecosystem WWTP
469 Quality Way
Exit Time/Date
Permit Expiration Date
Wilmington NC 28401
12:OOPM 22/06/28
21/07/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Kurt Peter Lonander/ORC/910-512-0285/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Amy E Cox,PO Box 995 Saint Helena NC 284250995/Utilities Analyst/910-259-1280/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenar Records/Reports
Self -Monitoring Progran 0 Sludge Handling Dispo: Pretreatment Effluent/Receiving Wate
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
Brian S West DWR/WIRO WQ/910-796-7341/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
Morella Sanchez -King DWR/WIRO WQ/910-796-7218/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type
NCO081736 I11 12I 22/06/28 117 18 i c i
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Routine inspection with Kurt Lonander, his assistance during the visit is appreciated. All questions
were answered, and all areas of the facility were available for inspection. Please see individual
comments under each section of the report. The facility is deemed compliant with permit no
NC0081736.
Page#

Permit: NCO081736
Inspection Date: 06/28/2022
Owner -Facility: Melinda B Knoerzer Adaptive Ecosystem
Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment:
Permit
(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: Permit renewal application has been submitted: reissuance pending
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Yes No NA NE
■ ❑ ❑ ❑
❑ ❑ ■ ❑
❑ ❑ ■ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
❑ ❑ ■ ❑
Comment: Previous calibration not available on day of inspection, meter was calibrated 7/12/22
Aerobic Digester
Yes
No
NA
NE
Is the capacity adequate?
0
❑
❑
❑
Is the mixing adequate?
❑
❑
❑
Is the site free of excessive foaming in the tank?
❑
❑
❑
# Is the odor acceptable?
■
❑
❑
❑
# Is tankage available for properly waste sludge?
E
❑
❑
❑
Comment: Facility recently had first batch of sludge hauled by McGill Environmental
Grit Removal Yes No NA NE
Type of grit removal
a.Manual ❑
b.Mechanical
Is the grit free of excessive organic matter? 0 ❑ ❑ ❑
Page# 3

Permit: NCO081736 Owner -Facility: Melinda B Knoerzer Adaptive Ecosystem
Inspection Date: 06/28/2022 Inspection Type: Compliance Evaluation
Grit Removal Yes No NA NE
Is the grit free of excessive odor?
0
❑
❑
❑
# Is disposal of grit in compliance?
❑
❑
❑
Comment: Please keep record of grit hauling to NHCo Landfill
Equalization Basins
Yes
No
NA NE
Is the basin aerated?
■
❑
❑
❑
Is the basin free of bypass lines or structures to the natural environment?
0
❑
❑
❑
Is the basin free of excessive grease?
0
❑
❑
❑
Are all pumps present?
❑
❑
0
❑
Are all pumps operable?
❑
❑
0
❑
Are float controls operable?
■
❑
❑
❑
Are audible and visual alarms operable?
❑
❑
❑
# Is basin size/volume adequate?
■
❑
❑
❑
Comment: Please keep record of high water alarm checks across facility where needed
Secondary Clarifier
Yes
No
NA
NE
Is the clarifier free of black and odorous wastewater?
0
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
■
❑
❑
❑
Are weirs level?
0
❑
❑
❑
Is the site free of weir blockage?
0
❑
❑
❑
Is the site free of evidence of short-circuiting?
0
❑
❑
❑
Is scum removal adequate?
■
❑
❑
❑
Is the site free of excessive floating sludge?
■
❑
❑
❑
Is the drive unit operational?
0
❑
❑
❑
Is the return rate acceptable (low turbulence)?
❑
❑
❑
Is the overflow clear of excessive solids/pin floc?
■
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth)
■
❑
❑
❑
Comment: One unit out of service for routine maintenance
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system Diffused
Is the basin free of dead spots? ❑ 0 ❑ ❑
Page# 4

Permit: NCO081736 Owner -Facility: Melinda B Knoerzer Adaptive Ecosystem
Inspection Date: 06/28/2022 Inspection Type: Compliance Evaluation
Aeration Basins Yes No NA NE
Are surface aerators and mixers operational?
❑
❑
■
❑
Are the diffusers operational?
■
❑
❑
❑
Is the foam the proper color for the treatment process?
■
❑
❑
❑
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: MBBR foamy, but operational parameters are good
Disinfection - UV
Yes
No
NA
NE
Are extra UV bulbs available on site?
❑
❑
❑
■
Are UV bulbs clean?
❑
❑
❑
■
Is UV intensity adequate?
❑
❑
❑
■
Is transmittance at or above designed level?
❑
❑
❑
■
Is there a backup system on site?
❑
❑
■
❑
Is effluent clear and free of solids?
■
❑
❑
❑
Comment: UV bulbs are continuously cleaned mechanically. Transmittance level alarms alert
operators if the bulbs need additional manual cleaning
Filtration (High Rate Tertiary)
Yes
No
NA
NE
Type of operation:
Cross
flow
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:
Effluent Sampling
Yes
No
NA
NE
Is composite sampling flow proportional?
❑
■
❑
❑
Is sample collected below all treatment units?
■
❑
❑
❑
Is proper volume collected?
■
❑
❑
❑
Is the tubing clean?
■
❑
❑
❑
Page# 5

Permit: NCO081736 Owner -Facility: Melinda B Knoerzer Adaptive Ecosystem
Inspection Date: 06/28/2022 Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 0 ❑ ❑ ❑
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type ❑ ❑ ❑
representative)?
Comment: Effluent composite samples are collected on a constant time/constant volume basis.
This method is acceptable in lieu of flow proportional sampling at this time as operators
control flow from the EQ tank, and the feed rate used is constant over a 24 hour
period. This was verified via a review of effluent flow data
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, ■ ❑ ❑ ❑
and sampling location)?
Comment: Pender County participated in the Lower Cape Fear River Program
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 property that the pump station is on was recently sold to an adjacent industrial
park facility owner. The County has acquired an easement which allows unlimited
access to the County to the station for routine operation and maintenance. The
easment was not reviewed: Dlease keep a coDv on -site for future insDections.
Page# 6

Chapter 6 - Major Water Quality Concerns and Recommended Management Strategies
Subbasin 17 This Subbasin can be broken into three distinct areas:
1. Cape Fear between Lock and Dam 1 and Wilmington: A QUAL2E model was developed for
this section of the river and is described in Section 6.3.3.3.
2. Northeast Cape Fear from Castle Hayne to Wilmington: Low DOs (4-5 mg/1) have been
observed at .the ambient station at HWY 421 .
3. Cape Fear from Wilmington to the Ocean: Low ambient DOs (2-3 mg/1) have been recorded at
the ambient stations at Channel Markers 55 & 50.
WLA analyses in estuarine areas are more complex than those to river systems due to the tidal and
wind effects on the hydrology and the three-dimensional circulation patterns. Due to the time and
resource constraints, a comprehensive estuary model was not developed for inclusion in this plan.
However, monitoring regimes are being developed and results are planned to be available by the
next permit cycle to evaluate the current pollutant loads and water quality and to determine the
status of Primary Nursery Areas (PNAs). A coalition of industries, municipalities, and educators
has evolved to develop a monitoring program. UNC - Wilmington is overseeing the group and
performing the monitoring. As a result of documented low dissolved oxygen levels and pending
completion of further studies, it is recommended that new and expanding discharges in the estuary
area receive NPDES limits reflecting advanced wastewater treatment, i.e., BOD5 = 5 mg/l and
NH3-N = 2 mg/l. This area is heavily used for wastewater assimilation and is susceptible to
strong development pressure.
A section. of this subbasin was reviewed for reclassification to HQW in 1989 based on the presence
of PNA waters. The EMC recommended additional surveys of water quality and aquatic life be
undertaken prior to making a final decision. The UNC -Wilmington, Dept. of Marine Sciences
was delegated to undertake the sampling. The area under consideration includes the Northeast
Cape Fear from the mouth of Ness Creek to the Cape Fear, the Brunswick River, and the Cape
Fear River from the Black River to a line across the river upstream of Lilliput Creek. Data from
these surveys will be reviewed prior to the next basin plan to determine what changes in the study
plan are needed.
The Corps of Engineers and the NC Division of Water Resources is investigating the feasibility of
deepening the Wilmington harbor to allow access to larger ships. Studies are focusing on the
effects of the dredging on the ground water system. The impacts on salt water intrusion upstream
have not yet been quantified.
oew nanover Lounly
New Hanover County has recently purchased the wastewater treatment facilities for several
subdivisions located on the north side of the county and plans to regionalize wastewater treatment.
Regionalization will be achieved in the short run through connection to one of Wilmington's
regional wastewater treatment plants. The long-term solution is construction of the 4.0 MGD new
Hanover County WWTP to serve northern New Hanover County. The proposed facility has been
permitted to discharge to the Cape Fear River below the confluence with the Northeast CaPe Fear
with requirements for advanced tertiary treatment, i.e., summer (winter) limits of BOD5 = 5 (10)
mg/1 and NH3-N = 2 (4) mg/l.
Subbasin 24 This subbasin is a small coastal watershed which includes the Intracoastal
waterway, beach communities, and Topsail Island. There are many SA waters and ORW waters.
Most water quality problems can be traced to development and marinas. Discharges are
discouraged to all waters. DO levels drop below 5 mg/l during summer months due to high
temperatures and limited tidal flushing. Biological Assessment has sampled in this subbasin as
part of its efforts to improve estuarine survey techniques and rating methods.
6-42

NH3/TRC WLA Calculations
Melinda B. Knoezer Adaptive Ecology WWTF
PermitNo. NC0081736
Prepared By: Gary Perlmutter
Enter Design Flow (MGD): 0.5
Enter s7Q10 (cfs): 918
Enter w7Q10 (cfs): 918
Total Residual Chlorine (TRC)
Ammonia (Summer)
Daily Maximum Limit (ug/1)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS) 918
s7Q10 (CFS)
918
DESIGN FLOW (MGD) 0.5
DESIGN FLOW (MGD)
0.5
DESIGN FLOW (CFS) 0.775
DESIGN FLOW (CFS)
0.775
STREAM STD (UG/L) 17.0
STREAM STD (MG/L)
1.0
Upstream Bkgd (ug/1) 0
Upstream Bkgd (mg/1)
0.22
IWC (%) 0.08
IWC (%)
0.08
Allowable Conc. (ug/1) 20154
Allowable Conc. (mg/1)
924.9
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
918
Monthly Average Limit: Not Required
DESIGN FLOW (MGD)
0.5
(If DF >331; Monitor)
DESIGN FLOW (CFS)
0.775
(If DF<331; Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF) 1185.52
Upstream Bkgd (mg/1)
0.22
IWC (%)
0.08
Allowable Conc. (mg/1)
1873.3
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals);
capped at 35 mg/I
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis);
capped at 35 mg/I
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)

NH3/TRC WLA Calculations
Melinda B. Knoezer Adaptive Ecology WWTF
PermitNo. NC0081736
Prepared By: Gary Perlmutter
Enter Design Flow (MGD): 4
Enter s7Q10 (cfs): 918
Enter w7Q10 (cfs): 918
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS)
918
s7Q10 (CFS)
918
DESIGN FLOW (MGD)
4
DESIGN FLOW (MGD)
4
DESIGN FLOW (CFS)
6.2
DESIGN FLOW (CFS)
6.2
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
Upstream Bkgd (ug/1)
0
Upstream Bkgd (mg/1)
0.22
IWC (%)
0.67
IWC (%)
0.67
Allowable Conc. (ug/1)
2534
Allowable Conc. (mg/1)
116.5
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
918
Monthly Average Limit:
200/100mi DESIGN FLOW (MGD)
4
(If DF >331; Monitor)
DESIGN FLOW (CFS)
6.2
(If DF<331; Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF)
149.06 Upstream Bkgd (mg/1)
0.22
IWC (%)
0.67
Allowable Conc. (mg/1)
235.7
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals); capped at 35 mg/I
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis); capped at 35 mg/l
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
m REQUIRED DATA ENTRY
Table 1. Project Information
❑✓ CHECK IF HQW OR ORW WQS
Facility Name
Melinda B. Knoezer Adatpive Ecology WWTF
WWTP/WTP Class
Grade II
NPDES Permit
NCO081736
Outfal I
001
Flow, Qw (MGD)
0.500
Receiving Stream
Cape Fear River
HUC Number
03030005
Stream Class
❑ Apply WS Hardness WQC
C-Sw; PNA
7Q10s (cfs)
918.00
7Q10w (cfs)
918.00
30Q2 (cfs)
8142.00
QA (cfs)
737.79
1 Q10s (cfs)
Effluent Hardness
36 mg/L (Avg)
Upstream Hardness
34 mg/L (Avg)
Combined Hardness Chronic
34 m /L
Combined Hardness Acute
34 m /L
Data Source(s)
❑ CHECK TO APPLY MODEL
Follow directions for data entry. In some cases a
Par01
Par02
Par03
Par04
Par05
Par06 E
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
Par25
Table 2. Parameters of Concern
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
0.7443
FW
4.2375
ug/L
Chlorides
Aquatic Life
NC
230
FW
mg/L
Chlorinated Phenolic Compounds
Water Supply
NC
1
A
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
151.4546
FW
1164.3355
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
10.2492
FW
13.9918
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
4.1548
FW
106.6219
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
ng/L
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
48.2948
FW
434.8224
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
0.5030
ug/L
Zinc
Aquatic Life
NC
164.4588
FW
163.1261
ug/L
Toluene
Aquatic Life
NC
11
FW
pg/L
Aluminum
Aquatic Life
NC
8000
FW
pg/L
Bromodichloromethane
Human Health
C
17
HH
pg/L
Chloroform
Human Health
NC
2000
HH
pg/L
81736 Freshwater RPA 2022 0.5 MGD, input
4/25/2023

REASONABLE POTENTIAL ANALYSIS
H1
H2
Use "PASTE SPECIAL-
Use "PASTE SPECIAL -
Effluent Hardness
Values" then "COPY".
Upstream
Hardness
Values" then "COPY".
Maximum data points
Maximum data points
= 58
= 58
Date
Data
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
1
8/22/2018
38
38
Std Dev.
6.0828
1
9/26/2022
30
30
Std Dev.
10.2835
2
11/28/2018
38
38
Mean
36.0000
2
9/27/2022
30
30
Mean
34.0000
3
3/20/2019
38
38
C.V.
0.1690
3
9/28/2022
28
28
C.V. (default)
0.6000
4
6/19/2019
34
34
n
17
4
9/29/2022
29
29
n
9
5
8/28/2019
38
38
10th Per value
30.40 mg/L
5
9/30/2022
29
29
10th Per value
28.00 mg/L
6
11/13/2019
52
52
Average Value
36.00 mg/L
6
1/20/2022
28
28
Average Value
34.00 mg/L
7
1/23/2020
36
36
Max. Value
52.00 mg/L
7
5/31/2022
60
60
Max. Value
60.00 mg/L
8
5/5/2020
38
38
8
7/20/2022
38
38
9
6/17/2020
32
32
9
10/12/2022
34
34
10
9/16/2020
32
32
10
11
12/16/2020
28
28
11
12
3/31 /2021
26
26
12
13
6/16/2021
32
32
13
14
9/13/2021
34
34
14
15
12/6/2021
44
44
15
16
3/24/2022
40
40
16
17
6/28/2022
32
32
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
81736 Freshwater RPA 2022 0.5 MGD, data
-2- 4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par01 & Par02
Date Data
1 12/19/2019 <
2 7/7/2020 <
3 6/7/2022 <
4
5
6
7
8
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
Par03
Use "PASTE SPECIAL-
Use "PASTE SPECIAL -
Arsenic
Values" then "COPY".
Beryllium
Values" then "COPY".
Maximum data points
Maximum data points
= 58
= 58
BDL=1/2DL Results
Date Data
BDL=1/2DL
Results
1 0.5 Std Dev.
2.5981
1
12/19/2019 <
10 5
Std Dev.
0.0000
10 5 Mean
3.5000
2
7/7/2020 <
10 5
Mean
5.0000
10 5 C.V. (default)
0.6000
3
6/7/2022 <
10 5
C.V. (default)
0.6000
n
3
4
n
3
5
Mult Factor =
3.00
6
Mult Factor =
3.00
Max. Value
5.0 ug/L
7
Max. Value
5.00 ug/L
Max. Pred Cw
15.0 ug/L
8
Max. Pred Cw
15.00 ug/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
81736 Freshwater RPA 2022 0.5 MGD, data
-3- 4/25/2023

REASONABLE POTENTIAL ANALYSIS
81736 Freshwater RPA 2022 0.5 MGD, data
- 4 - 4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par06 Par07
Use "PASTE SPECIAL -
Chlorinated Phenolic Compounds values" then "COPY
Maximum data points
= 58
1
2
3
4
5
6
7
8
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
Date Data BDL=1/2DL Results
Std Dev.
Mean
C.V.
n
Mult Factor =
Max. Value
Max. Pred Cw
Total Phenolic Compounds
1
Date Data
12/19/2019
NO DATA
NO DATA
2
7/7/2020 <
NO DATA
3
6/7/202 <
0
4
5
N/A
6
N/A ug/L
7
N/A ug/L
8
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
BDL=1/2DL
Results
10 10
Std Dev.
5 2.5
Mean
5 2.5
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL -
Values" then "COPY".
Maximum data points
= 58
4.3301
5.0000
0.6000
3
3.00
10.0 ug/L
30.0 ug/L
81736 Freshwater RPA 2022 0.5 MGD, data
-5- 4/25/2023

REASONABLE POTENTIAL ANALYSIS
81736 Freshwater RPA 2022 0.5 MGD, data
4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par10
Date Data
1 12/19/2019 <
2 2/14/2020 <
3 7/7/2020 <
4 6/7/2022 <
5
6
7
8
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
Chromium, Total
Use "PASTE SPECIAL -
Values" then "COPY".
Pall
Copper
Maximum data points
= 58
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
1
0.5
Std Dev.
2.2500
1
12/19/2019
<
10
5
Std Dev.
10
5
Mean
3.8750
2
2/14/2020
<
10
5
Mean
10
5
C.V. (default)
0.6000
3
7/7/2020
<
1000
500
C.V. (default)
10
5
n
4
4
6/7/2022
<
10
5
n
5
Mult Factor =
2.59
6
Mult Factor =
Max. Value
5.0 Ng/L
7
Max. Value
Max. Pred Cw
13.0 dig/L
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
247.5000
128.7500
0.6000
4
2.59
500.00 ug/L
1295.00 ug/L
-7-
81736 Freshwater RPA 2022 0.5 MGD, data
4/25/2023

REASONABLE POTENTIAL ANALYSIS
81736 Freshwater RPA 2022 0.5 MGD, data
4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par14
Date
1 12/19/2019 <
2 2/14/2020 <
3 7/7/2020 <
4 6/7/202 <
5
6
7
8
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
Par15
Use "PASTE SPECIAL-
Use "PASTE SPECIAL -
Lead
Values" then "COPY".
Mercury
Values" then "COPY".
Maximum data points
Maximum data points
= 58
= 58
BDL=1/2DL
Results
Date Data
BDL=1/2DL Results
1
0.5
Std Dev.
2.2500
1
Std Dev.
NO DATA
10
5
Mean
3.8750
2
Mean
NO DATA
10
5
C.V. (default)
0.6000
3
C.V.
NO DATA
10
5
n
4
4
n
0
5
Mult Factor =
2.59
6
Mult Factor =
N/A
Max. Value
5.000 ug/L
7
Max. Value
N/A ng/L
Max. Pred Cw
12.950 ug/L
8
Max. Pred Cw
N/A ng/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
81736 Freshwater RPA 2022 0.5 MGD, data
-9- 4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par16
Date Data
1 2/14/2020 <
2
3
4
5
6
7
8
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
Par17 & Par18
Use "PASTE SPECIAL-
Use "PASTE SPECIAL -
Molybdenum
Values" then "COPY".
Nickel
Values" then "COPY".
Maximum data points
Maximum data points
= 58
= 58
BDL=1/2DL Results
Date
Data
BDL=1/2DL
Results
10 5 Std Dev.
N/A
1
12/19/2019
<
10
5
Std Dev.
0.0000
Mean
5.0000
2
2/14/2020
<
10
5
Mean
5.0000
C.V. (default)
0.6000
3
7/7/2020
<
10
5
C.V. (default)
0.6000
n
1
4
6/7/2022
<
10
5
n
4
5
Mult Factor =
6.20
6
Mult Factor =
2.59
Max. Value
5.0 ug/L
7
Max. Value
5.0 Ng/L
Max. Pred Cw
31.0 ug/L
8
Max. Pred Cw
13.0 Ng/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
81736 Freshwater RPA 2022 0.5 MGD, data
-10- 4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par19
Date Data
1 12/19/2019 <
2 7/7/2020 <
3 6/7/202
4
5
6
7
8
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
Par20
Use "PASTE SPECIAL-
Use "PASTE SPECIAL -
Selenium
Values" then "COPY".
Silver
Values" then "COPY".
Maximum data points
Maximum data points
= 58
= 58
BDL=1/2DL
Results
Date
Data
BDL=1/2DL
Results
10 5
Std Dev.
2.8868
1
12/19/2019
<
1
0.5
Std Dev.
2.2500
10 5
Mean
6.6667
2
2/14/2020
<
10
5
Mean
3.8750
10 10
C.V. (default)
0.6000
3
7/7/2020
<
10
5
C.V. (default)
0.6000
n
3
4
6/7/2022
<
10
5
n
4
5
Mult Factor =
3.00
6
Mult Factor =
2.59
Max. Value
10.0 ug/L
7
Max. Value
5.000 ug/L
Max. Pred Cw
30.0 ug/L
8
Max. Pred Cw
12.950 ug/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
81736 Freshwater RPA 2022 0.5 MGD, data
- 11 - 4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par21
Date Data
1 12/19/2019
2 2/14/2020 <
3 7/7/2020
4 6/7/2022
5
6
7
8
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
Par22
Use "PASTE SPECIAL-
SPECIAL -
Use "PASTE SPECIAL -
Zinc
Values" then "COPY".
Toluene
Values" then "COPY".
Maximum data points
Maximum data points
= 58
= 58
BDL=1/2DL
Results
Date Data
BDL=1/2DL
Results
13
13
Std Dev.
3.7749
1
12/19/2019
0.93 0.93
Std Dev.
0.3926
10
5
Mean
10.2500
2
7/7/2020 <
0.5 0.25
Mean
0.4767
13
13
C.V. (default)
0.6000
3
6/7/2022 <
0.5 0.25
C.V. (default)
0.6000
10
10
n
4
4
n
3
5
Mult Factor =
2.59
6
Mult Factor =
3.00
Max. Value
13.0 ug/L
7
Max. Value
0.930000 pg/L
Max. Pred Cw
33.7 ug/L
8
Max. Pred Cw
2.790000 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
-12-
81736 Freshwater RPA 2022 0.5 MGD, data
4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par23
Date Data
1 2/19/2019
2
3
4
5
6
7
8
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
Par24
Use "PASTE SPECIAL -
Aluminum
Values" then "COPY".
Bromodichloromethane
Maximum data points
= 58
BDL=1/2DL Results
Date
Data BDL=1/2DL
Results
346 346 Std Dev.
N/A
1
6/7/2022
0.51 0.51
Std Dev.
Mean
346.0000
2
12/19/2019
< 0.5 0.25
Mean
C.V. (default)
0.6000
3
7/7/2020
< 0.5 0.25
C.V. (default)
n
1
4
n
5
Mult Factor =
6.20
6
Mult Factor =
Max. Value
346.000000 dig/L
7
Max. Value
Max. Pred Cw
########## dig/L
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
0.1501
0.3367
0.6000
3
3.00
0.510000 pg/L
1.530000 pg/L
-13-
81736 Freshwater RPA 2022 0.5 MGD, data
4/25/2023

REASONABLE POTENTIAL ANALYSIS
Par25
Use "PASTE SPECIAL -
Chloroform
Values" then "COPY".
Maximum data points
= 58
Date Data
BDL=1/2DL
Results
1
6/7/2022
0.83 0.83
Std Dev.
0.3349
2
12/19/2019 <
0.5 0.25
Mean
0.4433
3
7/7/2020 <
0.5 0.25
C.V. (default)
0.6000
4
n
3
5
6
Mult Factor =
3.00
7
Max. Value
0.830000 pg/L
8
Max. Pred Cw
2.490000 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
81736 Freshwater RPA 2022 0.5 MGD, data
- 14 - 4/25/2023

Outfall 001
Melinda B. Knoezer Adatpive Ecology WWTF
NCO081736 Freshwater RPA -
95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw (MGD) =
0.5000
1Q10S (cfs) =
737.79
7Q10S (cfs) =
918.00
7Q10W (cfs) =
918.00
30Q2 (cfs) =
NO 30Q2 DATA
Avg. Stream Flow, QA (cfs) =
8142.00
Receiving Stream: Cape Fear River HUC 03030005
WWTP/WTP Class: Grade II
IWC% @ 1Q10S =
0.104933215
IWC% @ 7Q10S =
0.084351446
IWC% @ 7Q10W =
0.084351446
IWC% @ 30Q2 =
N/A
IW%C @ QA =
0.00951764
Stream Class: C-Sw; PNA
Qw=0.5MGD
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS HQW OR ORW
COMBINED HARDNESS (mg/L)
Acute = 34 mg/L
Chronic = 34 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
J
Cy
IL
M
Aplied
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
Standard
Acute (FW): 162,007.8
Arsenic
C
75 FW(7Q10s) 170
ug/L
3 0
15.0
Chronic (FW):--- 88,913.7 —
-------------------------------
C.V. (default)
Max 10
Arsenic
C
5 HH/WS(Qavg)
ug/L
Note: n < 9
NO DETECTS
_MDL _=
Chronic (HH): 52,534.0
No detects - no monitoring required
Limited data set
Max MDL = 10
Acute: 30,972.08
Beryllium
NC
3.25 FW(7Q10s) 32.5
ug/L
3 0
15.00
Note: n < 9
C.V. (default)
Chronic: 3,852.93
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
Acute: 2,019.12
Cadmium
NC
0.3722 FW(7Q10s) 2.1187
ug/L
3 0
15.000
Note: n < 9
C.V. (default)
Chronic: 441.21
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
Acute: NO WQS
Chlorides
NC
115 FW(7Q10s)
mg/L
0 0
N/A
Chronic: 136,334.4
Acute: NO WQS
Chlorinated Phenolic Compounds
NC
0.5 A(30Q2)
ug/L
0 0
N/A
--Chronic: ---- IWC? --
-------------------------------
Acute: NO WQS
Total Phenolic Compounds
NC
150 A(30Q2)
ug/L
3 1
30.0
Note: n < 9
C.V. (default)
Chronic: IWC?
Limited data set
Acute: 554,798.4
Chromium III
NC
75.7273 FW(7Q10s) 582.1678
µg/L
0 0
N/A
--Chronic: ---- 89,776.0 —
-------------------------------
Acute: 7,623.9
Chromium VI
NC
6 FW(7Q10s) 8
µg/L
0 0
N/A
--Chronic: ---- 6,520.3--
-------------------------------
Chromium, Total
NC
µg/L
4 0
13.0
Max reported value = 5
Note: n < 9
C.V. (default)
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
81736 Freshwater RPA 2022 0.5 MGD, rpa
Page 15 of 16 4/25/2023

Melinda B. Knoezer Adatpive Ecology WWTF
Outfall 001
NCOO81736
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
Qw=O.5MGD
Acute: 6,667.02
Copper
NC
5.1246 FW(7Q10s) 6.9959
ug/L
4 0
1,295.00
Note: n < 9
C.V. (default)
Chronic: 6,075.28
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 1000
Acute: 10,482.9
Cyanide
NC
2.5 FW(7Q10s) 11
10
ug/L
3 0
15.0
Note: n < 9
C.V. (default)
Chronic: 2,963.8
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL — 10
Acute: NO WQS
Fluoride
NC
900 FW(7Q10s)
ug/L
0 0
N/A
Chronic: 1,066,964.5
Acute: 50,804.669
Lead
NC
2.0774 FW(7Q10s) 53.3110
ug/L
4 0
12.950
Note: n < 9
C.V. (default)
Chronic: 2,462.820
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
Acute: NO WQS
Mercury
NC
6 FW(7QIOs)
0.5
ng/L
0 0
N/A
--Chronic: ----
-------------------------------
7,113.1--
Acute: NO WQS
Molybdenum
NC
1000 HH(7Q10s)
ug/L
1 0
31.0
Note: n < 9
C.V. (default)
Chronic: 1,185,516.1
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL 10
Acute (FW): 207,190.1
Nickel
NC
24.1474 FW(7Q10s) 217.4112
µg/L
4 0
13.0
Chronic (FW):--- 28,627.2 —
-------------------------------
No detects - no monitoring required
Note: n<9
C.V. (default)
Max _MDL = 10
Nickel
NC
12.5000 WS(7QlOs)
µg/L
Limited data set
NO DETECTS
Chronic (WS): 14,819.0
Max MDL = 10
Acute: 26,683.6
Selenium
NC
2.5 FW(7Q10s) 28
ug/L
3 1
30.0
Note: n < 9
C.V. (default)
Chronic: 2,963.8
No detects - no monitoring required
Limited data set
No value > Allowable Cw
Acute: 239.70
Silver
NC
0.03 FW(7Q10s) 0.2515
ug/L
4 0
12.950
Note: n < 9
C.V. (default)
Chronic: 35.57
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
Acute: 77,728.5
Zinc
NC
82.2294 FW(7Q10s) 81.5631
ug/L
4 3
33.7
Note: n < 9
C.V. (default)
Chronic: 97,484.3
No RP - no monitoring required
Limited data set
No value > Allowable Cw
Acute: NO WQS
Toluene
NC
5.5 FW(7Q10s)
µg/L
3 1
2.79000
Note: n < 9
C.V. (default)
Chronic: 6,520.34
No RP - no monitoring required
Limited data set
No value > Allowable Cw
Acute: NO WQS
Aluminum
NC
4000 FW(7Q10s)
µg/L
1 1
2,145.20000
Note: n < 9
C.V. (default)
Chronic: 4,742,064.52
Limited data set
No value > Allowable Cw
No RP - no monitoring required
Acute: NO WQS
Bromodichloromethane
C
8.5 HH(Qavg)
µg/L
3 1
1.53000
Note: n < 9
C.V. (default)
Chronic: 89,307.85
Limited data set
No value > Allowable Cw
Acute: NO WQS
Chloroform
NC
1000 HH(7QIOs)
µg/L
3 1
2.49000
Note: n < 9
C.V. (default)
Chronic: 1,185,516.13
Limited data set
No value > Allowable Cw
81736 Freshwater RPA 2022 0.5 MGD, rpa
Page 16 of 16 4/25/2023

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
m REQUIRED DATA ENTRY
Table 1. Project Information
❑✓ CHECK IF HQW OR ORW WQS
Facility Name
Melinda B. Knoezer Adatpive Ecology WWTF
WWTP/WTP Class
Grade IV
NPDES Permit
NCO081736
Outfal I
001
Flow, Qw (MGD)
4.000
Receiving Stream
Cape Fear River
HUC Number
03030005
Stream Class
❑ Apply WS Hardness WQC
C-Sw; PNA
7Q10s (cfs)
918.00
7Q10w (cfs)
918.00
30Q2 (cfs)
8142.00
QA (cfs)
737.79
1 Q10s (cfs)
Effluent Hardness
- - - - - - - - - - - - -
36 mg/L (Avg)
- - - - - - - - - - - - - - - - - - - - - -
Upstream Hardness
29.2 mg/L (Avg)
Combined Hardness Chronic
29.25 m /L
Combined Hardness Acute
29.26 m /L
Data Source(s)
❑ CHECK TO APPLY MODEL
Follow directions for data entry. In some cases a
Par01
Par02
Par03
Par04
Par05
Par06 E
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
Par25
Table 2. Parameters of Concern
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
0.6642
FW
3.7164
ug/L
Chlorides
Aquatic Life
NC
230
FW
mg/L
Chlorinated Phenolic Compounds
Water Supply
NC
1
A
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
133.8713
FW
1029.4686
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
9.0110
FW
12.1442
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
3.5091
FW
90.0870
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
ng/L
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
42.5147
FW
382.8990
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
0.3884
ug/L
Zinc
Aquatic Life
NC
144.7472
FW
143.6187
ug/L
Toluene
Aquatic Life
NC
11
FW
pg/L
Aluminum
Aquatic Life
NC
8000
FW
pg/L
Bromodichloromethane
Human Health
C
17
HH
pg/L
Chloroform
Human Health
NC
2000
HH
pg/L
81736 Freshwater RPA 2022 4.0 MGD, input
4/25/2023

Outfall 001
Melinda B. Knoezer Adatpive Ecology WWTF
NCO081736 Freshwater RPA -
95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw (MGD) =
4.0000
1Q10S (cfs) =
737.79
7Q10S (cfs) =
918.00
7Q10W (cfs) =
918.00
30Q2 (cfs) =
NO 30Q2 DATA
Avg. Stream Flow, QA (cfs) =
8142.00
Receiving Stream: Cape Fear River HUC 03030005
WWTP/WTP Class: Grade IV
IWC% @ 1Q10S =
0.833344534
IWC% @ 7Q10S =
0.670850465
IWC% @ 7Q10W =
0.670850465
IWC% @ 30Q2 =
N/A
IW%C @ QA =
0.076090425
Stream Class: C-Sw; PNA
Qw = 4 MGD
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS HQW OR ORW
COMBINED HARDNESS (mg/L)
Acute = 29.26 mg/L
Chronic = 29.25 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
J
Cy
IL
M
Aplied
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
Standard
Acute (FW): 20,399.7
Arsenic
C
75 FW(7Q10s) 170
ug/L
3 0
15.0
Chronic (FW): 11,179.8
C.V. (default)
Max 10
Arsenic
C
5 HH/WS(Qavg)
ug/L
Note: n < 9
NO DETECTS
_MDL _=
Chronic (HH): 6,571.1
No detects - no monitoring required
Limited data set
Max MDL = 10
Acute: 3,899.95
Beryllium
NC
3.25 FW(7Q10s) 32.5
ug/L
3 0
15.00
Note: n < 9
C.V. (default)
Chronic: 484.46
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
Acute: 222.98
Cadmium
NC
0.3321 FW(7Q10s) 1.8582
ug/L
3 0
15.000
Note: n < 9
C.V. (default)
Chronic: 49.50
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
Acute: NO WQS
Chlorides
NC
115 FW(7Q10s)
mg/L
0 0
N/A
--Chronic: ---- 17,142.4 —
-------------------------------
Acute: NO WQS
Chlorinated Phenolic Compounds
NC
0.5 A(30Q2)
ug/L
0 0
N/A
--Chronic: ---- IWC? --
-------------------------------
Acute: NO WQS
Total Phenolic Compounds
NC
150 A(30Q2)
ug/L
3 1
30.0
Note: n < 9
C.V. (default)
Chronic: IWC?
Limited data set
Acute: 61,767.3
Chromium III
NC
66.9356 FW(7Q10s) 514.7343
µg/L
0 0
N/A
--Chronic: ---- 9,977.7--
-------------------------------
Acute: 960.0
Chromium VI
NC
6 FW(7Q10s) 8
µg/L
0 0
N/A
--Chronic:-----819.9 --
-------------------------------
Chromium, Total
NC
µg/L
4 0
13.0
Max reported value = 5
Note: n < 9
C.V. (default)
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
81736 Freshwater RPA 2022 4.0 MGD, rpa
Page 2 of 3 4/25/2023

Melinda B. Knoezer Adatpive Ecology WWTF
Outfall 001
NCOO81736
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
Qw = 4 MGD
Acute: 728.64
Copper
NC
4.5055 FW(7Q10s) 6.0721
ug/L
4 0
1,295.00
Note: n < 9
C.V. (default)
Chronic: 671.61
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 1000
Acute: 1,320.0
Cyanide
NC
2.5 FW(7Q10s) 11
10
ug/L
3 0
15.0
Note: n < 9
C.V. (default)
Chronic: 372.7
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL - 10
Acute: NO WQS
Fluoride
NC
900 FW(7Q10s)
ug/L
0 0
N/A
--Chronic:----134,158.1-
-------------------------------
Acute: 5,405.145
Lead
NC
1.7545 FW(7Q10s) 45.0435
ug/L
4 0
12.950
Note: n < 9
C.V. (default)
Chronic: 261.539
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
Acute: NO WQS
Mercury
NC
6 FW(7QIOs)
0.5
ng/L
0 0
N/A
--Chronic:-----894.4 --
-------------------------------
Acute: NO WQS
Molybdenum
NC
1000 HH(7Q10s)
ug/L
1 0
31.0
Note: n < 9
C.V. (default)
Chronic: 149,064.5
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL 10
Acute (FW): 22,973.6
Nickel
NC
21.2573 FW(7Q10s) 191.4495
µg/L
4 0
13.0
Chronic (FW):--- 3,168.7--
-------------------------------
No detects - no monitoring required
Note: n<9
C.V. (default)
Max _MDL = 10
Nickel
NC
12.5000 WS(7QlOs)
µg/L
Limited data set
NO DETECTS
Chronic (WS): 1,863.3
Max MDL = 10
Acute: 3,360.0
Selenium
NC
2.5 FW(7Q10s) 28
ug/L
3 1
30.0
Note: n < 9
C.V. (default)
Chronic: 372.7
No detects - no monitoring required
Limited data set
No value > Allowable Cw
Acute: 23.306
Silver
NC
0.03 FW(7Q10s) 0.1942
ug/L
4 0
12.950
Note: n < 9
C.V. (default)
Chronic: 4.472
No detects - no monitoring required
Limited data set
NO DETECTS
Max MDL = 10
Acute: 8,617.0
Zinc
NC
72.3736 FW(7Q10s) 71.8094
ug/L
4 3
33.7
Note: n < 9
C.V. (default)
Chronic: 10,788.3
No RP - no monitoring required
Limited data set
No value > Allowable Cw
Acute: NO WQS
Toluene
NC
5.5 FW(7Q10s)
µg/L
3 1
2.79000
Note: n < 9
C.V. (default)
Chronic: 819.85484
No RP - no monitoring required
Limited data set
No value > Allowable Cw
Acute: NO WQS
Aluminum
NC
4000 FW(7Q10s)
µg/L
1 1
2,145.20000
Note: n < 9
C.V. (default)
Chronic: 596258.06452
Limited data set
No value > Allowable Cw
No RP - no monitoring required
Acute: NO WQS
Bromodichloromethane
C
8.5 HH(Qavg)
µg/L
3 1
1.53000
Note: n < 9
C.V. (default)
Chronic: 11170.91935
Limited data set
No value > Allowable Cw
Acute: NO WQS
Chloroform
NC
1000 HH(7QIOs)
µg/L
3 1
2.49000
Note: n < 9
C.V. (default)
Chronic: 149064.51613
Limited data set
No value > Allowable Cw
81736 Freshwater RPA 2022 4.0 MGD, rpa
Page 3 of 3 4/25/2023

4/25/23 WQS = 6 ng/L
Facility Name
Siler City WWTP / NC0026441
/Permit No.
Total Mercury 1631E PQL = 0.5 ng/L
Date Modifier Data Entry Value
MERCURY WQBEL/TBEL EVALUATION V:2013-6
No Limit Required
MMP Required
7Q10s = 918.000 cfs WQBEL = 894.39 ng/L
Permitted Flow = 4.000 47 ng/L
10/10/18
1.36
1.36
1.4 ng/L
- Annual Average for 2018
3/7/19
<
0.5
0.5
6/6/19
<
0.5
0.5
10/24/19
<
0.5
0.5
12/4/19
<
0.5
0.5
0.5 ng/L
- Annual Average for 2019
3/5/20
<
0.5
0.5
6/3/20
<
0.5
0.5
9/8/20
0.91
0.91
12/16/20
4.8
4.8
1.7 ng/L
- Annual Average for 2020
3/4/21
<
0.5
0.5
6/22/21
<
0.5
0.5
9/13/21
<
0.5
0.5
12/6/21
<
0.5
0.5
0.5 ng/L
- Annual Average for 2021
3/8/22
<
0.5
0.5
6/7/22
<
0.5
0.5
0.5 ng/L
- Annual Average for 2022

4/25/23 WQS = 6 ng/L
Facility Name
Siler City WWTP / NC0026441
/Permit No.
Total Mercury 1631E PQL = 0.5 ng/L
Date Modifier Data Entry Value
MERCURY WQBEL/TBEL EVALUATION V:2013-6
No Limit Required
No MMP Required
7Q10s = 918.000 cfs WQBEL = 7113.10 ng/L
Permitted Flow = 0.500 47 ng/L
10/10/18
1.36
1.36
1.4 ng/L
- Annual Average for 2018
3/7/19
<
0.5
0.5
6/6/19
<
0.5
0.5
10/24/19
<
0.5
0.5
12/4/19
<
0.5
0.5
0.5 ng/L
- Annual Average for 2019
3/5/20
<
0.5
0.5
6/3/20
<
0.5
0.5
9/8/20
0.91
0.91
12/16/20
4.8
4.8
1.7 ng/L
- Annual Average for 2020
3/4/21
<
0.5
0.5
6/22/21
<
0.5
0.5
9/13/21
<
0.5
0.5
12/6/21
<
0.5
0.5
0.5 ng/L
- Annual Average for 2021
3/8/22
<
0.5
0.5
6/7/22
<
0.5
0.5
0.5 ng/L
- Annual Average for 2022

EPA Identification Number
NPDES Number
Facility Name Outfall Number
3 K.Knoerzer Ecosystem Reclamation 1
NCO2053
NCO081736
Pollutant (Required)
CAS number
Method Number (if
Applicable)
7ea,,nPollutant Believed Present in Discharge
Estimated Concentration (If
Known)
1,4-Dioxane
we treat reject water from WTP
PFBA
375-22-4
PFPeA
2706-90-3
PFHxA
307-24-4
PFHpA
375-85-9
PFOA
335-67-1
PFNA
375-95-1
PFDA
335-76-2
PFBS
375-73-5
PFPeS
2706-91-4
PFHxS
355-46-4
PFOS
1763-23-1
6:2 FTS
27619-97-2
HFPO-DA
13252-13-6
PFMOAA
674-13-5
PF02HxA
39492-8-1
PF030A
39492-89-2
FBSA
30334-69-1
Nafion Byproduct 2
749836-20-2
PEPA
267239-61-2
PMPA
13140-29-9
Zinc
7440-66-6
EPA 200.7,Rev.4.4, 19
Selenium
EPA 200.7,Rev.4.4, 19
Dibromochloromethane
EPA 624
Bromodichloromethane
EPA 624