NC0031836_Fact Sheet_20240204

NCO031836
Fact Sheet
NPDES Permit No. NCO031836
Permit Writer/Email Contact: Gary Perlmutter, [e-mail]
Date: February 2, 2024
Division/Branch: NC Division of Water Resources/NPDES Municipal Permitting Unit
Fact Sheet Template: Version 09Jan2017
Permitting Action:
❑X Renewal
❑ Renewal with Expansion
❑ New Discharge
❑ Modification (Fact Sheet should be tailored to mod request)
Note: A complete application should include the following:
• For New Dischargers, EPA Form 2A or 2D requirements, Engineering Alternatives Analysis, Fee
• For Existing Dischargers (POTW), EPA Form 2A, 3 effluent pollutant scans, 4 2nd species WET
tests.
• For Existing Dischargers (Non-POTW), EPA Form 2C with correct analytical requirements based
on industry category.
Complete applicable sections below. If not applicable, enter NA.
1. Basic Facility Information
Facility Information
Applicant/Facility Name:
City of Statesville / Fourth Creek WWTP
Applicant Address:
P.O. Box 1111, Statesville, NC 28687
Facility Address:
693 Bell Farm Road, Statesville, NC 28625
Permitted Flow:
4.0 MGD / 6.0 MGD Expansion
Facility Type/Waste:
MAJOR Municipal; 96.5% domestic, 3.5% industrial'
Facility Class:
Grade IV
Treatment Units:
Influent pump station, 2 perforated panel bar screens, 2 aeration
basins with mechanical aerators (6 per basin), waste and return sludge
pumps (2 each), secondary wet well, 3 secondary clarifiers,
hypochlorite disinfection, sodium bisulfate de -chlorination, aerobic
digester with 3 mechanical aerators, 2 meter / 3 belt filter press,
alkaline sludge stabilization
Pretreatment Program (Y/N):
Yes
County:
Iredell
Region
Mooresville
Footnote:
1. Based on total permitted SIU flow of 0.14 MGD.
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NC0031836
Briefly describe the proposed permitting action and facility background: The City of Statesville has applied
for NPDES permit renewal, and submitted a renewal application dated 9/15/022, received by the Division
the next day. The cover letter stated that the 2nd species toxicity samples were not yet taken, but the Division
would be alerted when they are. The 2nd species toxicity reports were submitted, sampled in September,
October, November, and December 2022 with a fifth report from a test sampled in April 2023. Review of
the application found it incomplete, with the Chemical Addendum, Mercury Minimization Plan summary
report and the three Effluent Pollutant Scans missing. The missing information was received by request on
8/22/2023.
This facility serves a population of approximately 25,000 residents and operates a pretreatment program
with a long-term monitoring plan (LTMP) for both Fourth Creek WWTP and Third Creek WWTP
(NC0020591) with four Significant Industrial User (SIUs), all metal finishers, that discharge to the Fourth
Creek plant.
Sludge Management Plan. Biosolids are disposed of through Class B land application by Synagro via
Permit WQ0016247, and through the Statesville Class A permit WQ0006245. As stated in the submitted
2022 Headworks Analysis: "Fourth Creek sludge is all processed as Sta-Lime (lime stabilized sludge used
as fertilizer)..."
2. Receiving Waterbody Information
Receiving Waterbody Information
Outfalls/Receiving Stream(s):
Outfall 001- Fourth Creek
Stream Segment:
12-108-20
Stream Classification:
C
Drainage Area (mi):
46.5
Summer 7Q 10 (cfs)
7.5
Winter 7Q10 (cfs):
11.3
30Q2 (cfs):
16.0
Average Flow (cfs):
46.5
IWC (% effluent):
45% at 4.0 MGD, 55% at 6.0 MGD
2022 303(d) listed/parameter:
Benthos, Fish Community
Subject to TMDL/parameter:
Yes, Turbidity (TSS 30 mg/L limit, 1001 lbs/day; allocation
not included in the permit per 2009 US EPA's recognition
that TSS from municipal facilities does not contribute to
ambient turbidity). Fecal Coliform due to non -point sources.
Subbasin/HUC:
Yadkin -Pee Dee / 03040102
USGS Topo Quad:
Statesville East, NC
The receiving stream was assessed for Benthos most recently at Station QB200 at NCSR 2308 (Elmwood
Rd) on 6/3/2003, yielding a rating of Fair. The same location has a Fish Community station QF16, which
was most recently assessed on 7/28/2003, yielding a rating of Poor. The receiving stream is —40 miles
upstream of the nearest water supply boundary, WS-IV for the Tuckertown Reservoir (a.k.a. High Rock
Lake) in the Yadkin River.
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NC0031836
3. Effluent Data Summary
Effluent data is summarized below for the period May 2019 - November 2023.
Table 1. Effluent Data Summary
Parameter
Units
Average
Max
Min
Permit Limit'
Flow
MGD
3.2
12.1
2.0
4.0 MGD
BOD5 summer
mg/L
g
l 2
MA = 17.0
(Apr 1 - Oct 31)
WA = 25.5
BOD5 winter
mg/L
4.4
_2.6
1.18
MA = 27.0
(Nov 1 - Mar 31)
WA = 40.5
BOD removal
%
96.4
99.8
52.8
> 85
Total Suspended Solids
mg/L
3.6
42.4
< 2.5
MA = 30.0
(TSS)
WA = 45.0
TSS removal
%
97.0
99.9
0.0
> 85
NH3-N summer z
mg/L
0.93
9.90
0.012
MA = 2.0
(Apr 1 - Oct 31)
WA = 6.0
NH3-N winter 2
mg/L
1.95
8.41
< 0.01
MA = 4.7
(Nov 1 - Mar 31)
WA = 14.1
Dissolved Oxygen (DO)
mg/L
9.0
12.4
5.3
DA > 5.0
Fecal Coliform
#/100 mL
4.6
16,600
< 1
MA = 200
(geometric mean)
WA = 400
Total Residual Chlorine
µg/L
All < 20
DM = 28
(TRC)
Temperature
°C
18
31
g
Monitor &
Report
Conductivity
µmhos/cm
359
2170
159
Monitor &
Report
pH
SU
7.0
7.8
6.5
6.0 - 9.0
Total Nitrogen (TN)
mg/L
4.97
18.76
0.67
Monitor &
Report
Total Phosphorus (TP)
mg/L
0.78
4.18
0.04
Monitor &
Report
Total Hardness
mg/L
46.5
78.4
21.1
Monitor &
Report
Total Copper 3
µg/L
6.9
202
1.9
MA = 29
DM=37
Footnotes.
1. A = Monthly Average; WA = Weekly Average; DM = Daily Maximum; DA = Daily Average.
2. Current Ammonia limits effective Marl, 2021.
3. Current Copper limits effective Mar 1, 2022.
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NC0031836
The current permit has two flow tiers, 4.0 and 6.0 MGD with the 6.0 MGD becoming effective upon the
annual average flow exceeding 3.6 MGD, 90% of the 4.0 MGD permitted flow. The annual average flow
did exceed 3.6 MGD in 2020 (Table 2), triggering the 6.0 MGD flow tier to become effective.
Table 2. Annual Average Flows relative to the 4.0 MGD limit.
Year
Average Flow
Percent of
Permitted Flow
2019
3.24
81%
2020
3.71
93%
2021
3.17
79%
2022
3.22
80%
Jan — Nov 2023
2.97
74%
The 6.0 MGD flow tier was placed in the permit in 1996 citing an AtC for the expansion issued to the City
on 11/19/1987. This AtC requires submittal of an Engineer Certificate upon construction completion before
the plant can operate at 6.0 MGD. No Engineer Certificate was received, despite construction having been
completed in 1988 or '89 according to the City's water resources operations manager (pers. comm.
8/25/2023). The current renewal application includes a system component list with equipment matching
those in the 1987 AtC, indicating that the upgrade equipment had been installed. A request was made to the
City to provide verification that the plant's rating has increased to a capacity of 6.0 MGD; the verification
letter was received on 8/31/2023.
The 4.0 MGD effluent sheet has been removed from the permit. All evaluations in this Fact Sheet are for
the 6.0 MGD flow tier only.
4. Instream Data Summary
Instream monitoring may be required in certain situations, for example: 1) to verify model predictions when
model results for instream DO are within 1 mg/1 of instream standard at full permitted flow; 2) to verify
model predictions for outfall diffuser; 3) to provide data for future TMDL; 4) based on other instream
concerns. Instream monitoring may be conducted by the Permittee, and there are also Monitoring Coalitions
established in several basins that conduct instream sampling for the Permittee (in which case instream
monitoring is waived in the permit as long as coalition membership is maintained).
Is this facility a member of a Monitoring Coalition with waived instream monitoring (YIN): YES.
Name of Monitoring Coalition: Yadkin Pee Dee River Basin Association (YPDRBA).
If applicable, summarize any instream data and what instream monitoring will be proposed for this permit
action: The current permit requires instream monitoring for DO, Temperature, Conductivity, and Total
Hardness. The upstream location is at NCSR 2316 (Bell Farm Rd), —0.5 miles from the outfall, and the
downstream location is —0.5 miles below the outfall. Instream monitoring is provisionally waived in light
of the Permittee's participation in the Yadkin Pee Dee River Basin Association (YPDRBA, monitoring
coalition). Hardness monitoring (upstream only) is performed by the Permittee and is used in calculating
allowable concentrations for certain dissolved metals that are hardness -dependent (see Section 6.4. —
Reasonable Potential Analysis below).
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NCO031836
Data were available for review for the upstream YPDR 3A station Q3720000, located at the permitted
upstream location, but no downstream YPDRBA station was nearby. Instead, data were available from
DWR Ambient Monitoring System's (AMS) Station Q3735000, located at NCSR 2308 (Elmwood Rd),
—2.6 miles from the outfall. Data from both stations spanning January 2019 through December 2022 were
reviewed and checked against applicable stream standards as well as for effluent impacts, the latter via
statistical testing of downstream averages against the upstream average of each parameter using t-test with
the level of significance (p-value) set at 0.05. The data are summarized in Tables 3 and 4 and discussed
below.
Table 3. Instream Data Summary: averages with ranges in parentheses.
*Statistically significantly different from Upstream.
Parameter, units
Upstream
Downstream
Standard
DO, mg/L
Avg =8.6
Avg =9.2*
5.0
(6.7 — 11.8)
(6.0 — 13.9)
Temperature, °C
Avg = 16.5
Avg = 16.0
32.0
(4.7 25.7)
(1.4 26.3)
Conductivity, µmhos/cm
g =
NA
g 154)
(70 —168)
Fecal Coliform, cfu/100 mL
Geomean = 801
Geomean = 377*
(40 — 7900)
(36 — 13,000)
Dissolved Oxygen (DO) — DO is in the permit as a parameter of concern for aquatic life. Summer minima
of both stations were all above the stream standard of 5.0 mg/L. A statistically significant difference was
found between the upstream and downstream stations with downstream average higher. The facility is
meeting its DO limits consistently and the downstream DO was seen at levels both above the standard and
above the upstream on average. Based on the review, it doesn't appear that the effluent has any negative
impact on the receiving stream.
Temperature — Temperature is in the permit as a parameter of concern for aquatic life. Summer maxima at
both stations were below the 32°C standard for lower piedmont and coastal plain waters. Since the data
were not collected synchronously between stations, up- to downstream increases could not be assessed. No
statistically significant differences were found between the upstream and downstream stations. Concurrent
effluent temperatures appear higher, with substantially higher winter minima. However, this does not
appear to be impacting the receiving stream.
Conductivity — Conductivity is in the permit as an indicator of industrial sources. The Town has an active
pretreatment program with four SIUs, all metal finishers. Specific Conductance was monitored instream, a
parameter related to Conductivity, but at 25°C. A statistically significant difference was found between the
upstream and downstream stations with downstream average reporting higher. Concurrent effluent average
Conductivity is over 2 times higher than instream on average, thus affecting the instream specific
conductance.
Fecal Coliform — Fecal Coliform is not in the permit based on Division guidance that this parameter may
be removed unless the receiving stream is either Class B or impaired for Fecal Coliform. The receiving
waters of Fourth Creek do meet these criteria, but data are available from the YPDRBA and AMS for
review. Log -transformed Fecal Coliform data were tested to find the downstream to be significantly lower
than the upstream. Concurrent effluent data had a much lower geomean, thus not impacting the stream.
Instream fecal coliform is not required and will not be added to the permit.
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NC0031836
In addition to the above permit -required parameters, both the YPDRBA and DWR-AMS monitored for
Ammonia, pH, Inorganic Nitrogen (NO2+NO3), Total Kjeldahl Nitrogen (TKN), Phosphorus and Turbidity.
Their data were reviewed as above and summarized below.
Table 4. Additional Instream Parameter Data Summary: averages with ranges in parentheses.
*Statistically significantly different from Upstream.
Parameter, units
Upstream
Downstream
Standard
Ammonia, mg/L
Avg =
0.11
Avg
= 0.15
NA
(0.02 -
0.33)
(0.02
- 0.55)
pH, SU
Avg
= 6.8
Avg
= 7.2*
6.0 - 9.0
(5.5 -
7.4)
(6.6
- 7.8)
Inorganic Nitrogen, mg/L
Avg =
1.01
Avg =
1.17*
NA
(0.57-1.30)
(0.55
- 2.20)
TKN m /L
' g
Avg =
0.56t-(0.03
Avg
= 0.64
NA
(0.24 -
1.83
- 2.80)
Total Phosphorus, mg/L
Avg =
0.08
Avg =
0.15*ir
NA
(0.02
0.19)
(0.03
-1.00)
Turbidity, NTU
Avg =
33.1
Avg
= 33.4
50
(8.2
140)
(3.8
- 500)
Review of the above additional parameters found significant increases in downstream pH, NO2+NO3 and
Total Phosphorus. Since all pH data were within the water quality standard range, instream monitoring for
this parameter is not considered to be needed in the permit. Because of nutrient issues of High Rock Lake
and the increases found downstream of the outfall, instream monitoring for TKN, NO2+NO3 and Total
Phosphorus will be added to the permit at monthly frequency.
5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): From August 2018 through
July 2023 the facility had reported exceedances in Flow, Ammonia, Fecal Coliform, Total Copper, and
Ammonia, resulting in various enforcement actions (see Table 5).
Table 5. Effluent monitoring violations summary, August 2018 - July 2023.
Weekly
Monthly
Daily
Notices of
Notices of
Enforcement
Parameter
Average
Average
Maximum
Deficiency
Violations
Cases
Exceedances
Exceedances
Exceedances
Flow
0
8*
NA
4
3
0
Fecal Coliform
1
0
NA
0
0
1
Total Copper
NA
1
2
0
0
Ammonia
1
j 3
j NA
j 0
4
*Exceedences of the 4.0 MGD flow limit, which is no longer in effect.
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NC0031836
Summarize the compliance record with aquatic toxicity test limits and any second species test results (past
S years): The facility passed 21 of 23 quarterly chronic toxicity tests (with one invalid test and one test
failure with subsequent passes), as well as all four second species chronic toxicity tests, sampled on
9/19/2022, 10/10/2022, 11/14/2022, and 12/5/2022 plus a fifth second species test, collected on 4/17/2023.
Summarize the results from the most recent compliance inspection: The most recent facility inspection,
conducted on 3/10/2023, reported that overall the facility appeared to be properly maintained and operated.
No compliance issues were reported.
6. Water Quality -Based Effluent Limitations (WQBELs)
6.1. Dilution and Mixing Zones
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): NA.
If applicable, describe any mixing zones established in accordance with 1 SA NCAC 2B.0204(b): NA.
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.
Ifpermit limits are more stringent than TBELs, describe how limits were developed: Limitations for BOD
are based on a Streeter Phelps model (Level B), run in 1987 for instream DO protection. No changes were
made to the BOD limits.
6.3. Ammonia and Total Residual Chlorine Limitations
Limitations for ammonia are based on protection of aquatic life utilizing ammonia chronic criteria 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 permit limits of 2.0/6.0 mg/L monthly/weekly average in summer and 4.0/12.0 mg/L
monthly/weekly average in winter at 6.0 MGD (those at 4.0 MGD no longer apply as the facility's annual
average flow had exceeded 90% of 4.0 MGD in 2020, thus triggering effectiveness of the 6.0 MGD flow
tier) are based on a Level B model run in 1987 for protection of the DO standard. A NH3/TRC Wasteload
Allocation (WLA) was run to evaluate against ammonia toxicity using the annual 7Q10s of 7.5 cfs and
7Q 10w of 11.3 cfs, yielding more stringent allowable concentrations of 1.6/4.8 mg/L in summer and
3.7/11.1 mg/L in winter, and are proposed as revised limits. Comparing the effluent data with the proposed
limits it appears that the facility may not be able to consistently meet them (Fig. 1).
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NCO031836
Proposed Ammonia Limits
• W k Avg ■ Mo. Avg WA Limit — — MA Limit
12
10
8
J
C 6 —
C 4
4
2 ■ —
0
2/4/2019 6/18/2020 10/31/2021 3/15/2023 7/27/2024
The TRC limit is capped at 28 µg/L from prior WLA analysis ald is confirmed by the WLA rerun. The
TRC limit is maintained in the permit. hk
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 (RP), 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'h 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.
The current permit requires effluent and upstream hardness monitoring for use in the RPA. The data were
obtained from Permittee-submitted DMRs and averaged 46.5 mg/L (effluent) and 44.5 mg/L (upstream).
A reasonable potential analysis was conducted on effluent toxicant data collected between December 2014
and September 2017 for the following parameters: arsenic, cadmium, total chromium, copper, cyanide,
lead, molybdenum, nickel, selenium, silver, and zinc. 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:
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NC0031836
o Total Copper: MA = 23.8 µg/L; DM = 30.9 µg/L. These limits when rounded are the
same as those in the current permit.
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: Total
Chromium, Chromium IV, Total Lead, Total Nickel and Total Zinc.
o Total Chromium, Chromium VI— monthly monitoring based on 1 result > Allow. Conc.for
Chromium VI
o Total Nickel — monthly monitoring based on 1 result > Allow. Conc.
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: Arsenic,
Cadmium, Total Phenolic Compounds, Cyanide, Molybdenum, Selenium.
POTW Effluent Pollutant Scan Review: Three effluent pollutant scans (February 2020, April 2021
and August 2022) were evaluated for additional pollutants of concern. The following parameters
were detected in the scans and evaluated: Chloroform, Toluene, Bis(2-ethylhexyl) phthalate.
o The following parameter(s) will receive a water quality -based effluent limit (WQBEL)
with monitoring, since as part of a limited data set, two samples exceeded the allowable
discharge concentration: none.
o The following parameter(s) will receive a monitor -only requirement, since as part of a
limited data set, one sample exceeded the allowable discharge concentration: Bis(2-
ethylhexyl) phthalate, Chloroform, Toluene.
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: This is a Major POTW with a chronic WET limit of 45% at
4.0 MGD flow and 55% at 6.0 MGD flow. Since the 4.0 MGD flow tier is no longer applicable, it will be
removed and quarterly monitoring with 55% limit at 6.0 MGD will be maintained.
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.
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NC0031836
Describe proposed permit actions based on mercury evaluation: Since no annual average mercury
concentration exceeded the WQBEL at 6.0 MGD, and no individual mercury sample exceeded the TBEL
(Table 6), no mercury limit is required. This takes into account the removal of one high value of 54 ng/L
on 3/1/2019, which was found to be the result of a sample preservation error by the analytical laboratory.
Since the facility is > 2 MGD and has reported quantifiable levels of mercury (> 1 ng/L), the Mercury
Minimization Plan (MMP) requirement is maintained in the permit.
Table 6. Mercury Effluent Data Summary
2019
2020
2021
2022
2023
# of Samples
5
4
5
5
2
Annual Average Conc. ng/L
7.9
3.6
2.5
2.3
1.2
Maximum Conc., ng/L
19.8
9.08
3.32
3.50
1.36
TBEL, ng/L
47
WQBEL at 6.0 MGD, ng/L
21.7
6.7. Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation within
this permit: The receiving stream, Fourth Creek, flows via the Yadkin River to High Rock Lake, which is
impaired for Chlorophyll a, pH and Turbidity. Chlorophyll a and pH impairments are associated with algal
blooms that are caused by excessive nutrient loadings to the lake. A nutrient TMDL was planned for High
Rock Lake, and Total Nitrogen (TN) and Total Phosphorus (TP) monitoring was increased from monthly
to weekly in 2001 for its development. Due to its location, the facility is a potential source of nutrient
loadings to High Rock Lake and may be subject to future limitations resulting from the nutrient strategy
once developed and implemented. The Division is working with the North Carolina Nutrient Criteria
Development Plan Scientific Advisory Council to develop criteria for TN, TP or related parameters. A
nutrient re -opener special condition has been added to the permit to allow the Division to insert any limits
resulting from a TMDL, management strategy and/or nutrient criteria once implemented. To better
understand the total nitrogen in the effluent, weekly monitoring for Total Kjeldahl Nitrogen (TKN) and
Nitrate -Nitrite (NO3+NO2) has been added to the permit. In addition, monthly instream monitoring for
nutrients (TN, TKN, NO3+NO2 and TP) has been added to the permit with the waiver for participation in
the Yadkin -Pee Dee River Basin Association monitoring coalition to be consistent with other instream
monitoring requirements.
6.8. Other WQBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: In the Chemical
Addendum, the facility reported only 1,4-Dioxane as expected due to their receiving industrial waste from
metal finishers, but they have not sampled their effluent for this chemical. The allowable concentration for
1,4-Dioxane to meet the instream target value (ITV) of 80 µg/L for the Class C receiving stream is 480
µg/L. The receiving stream lies —40 miles from the nearest downstream water supply watershed boundary
for the Tuckerman Reservoir (a.k.a. High Rock Lake) in the Yadkin River. The allowable concentration to
meet the ITS of 0.35 µg/L at the water supply boundary is 160 µg/L. To assess the actual levels of 1,4-
Dioxane in the effluent, a quarterly monitoring requirement has been added to the permit with the option
for the Permittee to request re-evaluation of 24 months of data for possible monitoring reduction to
annually.
Due to the pervasiveness of PFAS chemicals in the environment, the presence of a downstream water supply
and the facility's receiving industrial waste from four metal finishers, a category recognized by the EPA as
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NC0031836
a source for PFAS, quarterly PFAS monitoring will be required in the permit along with pretreatment
requirements as recommended by EPA guidance (memo: 12/5/2022). See Section 10 — Monitoring
Requirements below for details.
If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall
comply with in order to protect the designated waterbody: NA.
If applicable, describe any compliance schedules proposed for this permit renewal in accordance with 15A
NCAC 2H. 01 07(c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: NA.
If applicable, describe any water quality standards variances proposed in accordance with NCGS 143-
215.3(e) and 15A NCAC 2B.0226 for this permit renewal: NA.
7. Technology -Based Effluent Limitations (TBELs)
Municipals(if not applicable, delete and skip to Industrials)
Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/L
BODs/TSS for Monthly Average, and 45 mg/L for BODs/TSS for Weekly Average). YES.
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA.
Are 85% removal requirements for BODs/TSS included in the permit? YES. Review of the influent and
effluent data for both parameters found 40 occurrences of < 85% BOD removal and 23 occurrences of <
85% TSS removal. Several of these occurrences involve low influent BOD/TSS concentrations, suggesting
issues with inflow and infiltration (I&I). The renewal application indicates an average of 0.015 MGD I&I
or 0.46% of the reported average flow of 3.26 MGD. The application also reports that the City is continuing
its water and sewer maintenance via camera inspection of lines for cracks and blockages.
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

NC0031836
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.
To identify PFAS concentrations in waters classified as Water Supply (WS) waters, monitoring
requirements are to be implemented in NPDES permits with pretreatment programs that discharge to WS
waters. Since the WWTP's outfall is —40 miles upstream of the nearest water supply boundary and as the
WWTP receives wastewater from industries recognized as potential sources of PFAS via a pretreatment
program, monitoring of PFAS chemicals has been added to the permit. Currently, EPA Method 1633 is
finalized (as of January 31, 2024) but not yet published in the Federal Register as an approved test method.
Upon evaluation of laboratory availability and capability to perform the analytical method, it was
determined that the sampling may be conducted using the 3rd draft method or more recent version of Method
1633. Influent and effluent quarterly monitoring have been added to the permit with analysis using the
method until Method 1633 becomes approved via publication in the Federal Register. Sampling using the
method shall take effect the first full calendar quarter following 6 months after the effective date of the
permit to provide the City time to select a laboratory, develop a contract, and begin collecting samples.
Data shall submit data to the Division via a spreadsheet provided by the Division. Effective 6 months after
the final Method 1633 is published in the Federal Register as part of 40 CFR 136, the City shall conduct
influent and effluent monitoring using the approved method and submit data via eDMR.
In addition to monitoring at the WWTP, the City shall identify and monitor SIUs suspected of discharging
PFAS compounds [see A.(8.)(c.)(i.)] within 6 months of the permit effective date. The City shall update
their Industrial Waste Survey (IWS) to identify indirect dischargers of PFAS contributing to concentrations
experienced at the Fourth Creek WWTP. A summary of information learned during this process will be
provided as part of the 2024 Pretreatment Annual Report (PAR). Within 6 months of completion of the
IWS, the City shall begin sampling of indirect dischargers identified as potential PFAS sources at a
quarterly frequency. For a detailed outline of the specific PFAS requirements, see Special Condition A.(10.)
PFAS Monitoring Requirements.
As the Fourth Creek WWTP accepts influent wastewater from industrial facilities that are potential sources
of 1,4-Dioxane via the approved pretreatment program, and as the discharge lies upstream of a WS water,
monthly effluent monitoring for 1,4-Dioxane as well as a 1,4-Dioxane reopener condition have been added
to the permit. After a 24-month sampling period, the Permittee may request the Division conduct a review
of submitted data for assessment and approval of a 1,4-Dioxane monitoring frequency reduction from
monthly to quarterly.
For instream monitoring, refer to Section 4.
Page 12 of 16

NC0031836
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. Effective December 21, 2020, NPDES regulated facilities will be required to submit
additional NPDES reports electronically. This permit contains the requirements for electronic reporting,
consistent with Federal requirements.
12. Summary of Proposed Permitting Actions:
Based on the facility's annual flow exceeding 90% of the 4.0 MGD permitted flow tier in 2020 and the
Division has received verification that all authorized equipment for the 6.0 MGD flow tier has been
constructed and/or installed, the effluent sheet with all requirements for the operations at 4.0 MGD have
been removed from the permit. Permit conditions, limits and their proposed changes at 6.0 MGD are
summarized in Table 6 below.
Table 6. Current Permit Conditions and Proposed Changes at 6.0 MGD'.
Parameter
Current Permit
Proposed Change
Basis for Condition/Change
MA = 6.0 MGD
Flow
Monitor influent or
No change
15A NCAC 2B .0505
effluent continuously
Summer:
MA = 17.0 mg/L
WA = 25.5 mg/L
WQBEL. Based on 1995 agreement
BODS
Winter:
No change
with facility to have BOD limits in
i
MA = 27.0 mg/L
terms of CBOD5,1991 WLA, and for
WA = 40.5 mg/L
protection of DO standard.
Monitor influent &
effluent daily
MA = 30.0 mg/L
TBEL. Secondary treatment
TSS
WA — 45.0 mg/L
No change
standards / 40 CFR 133 / 15A
Monitor influent &
NCAC 2B
effluent daily
.0406.
Summer:
Summer:
WQBEL. Calculation results based
MA = 2.0 mg/L
MA = 1.6 mg/L
on NC's use of EPA criteria in
WA = 6.0 mg/L
WA = 4.8 mg/L
developing 1.0 mg/L summer and
N-13-N
Winter:
Winter:
1.8 mg/L winter in wasteload
MA = 4.0 mg/L
MA = 3.7 mg/L
allocations to protect against NH3-N
WA = 12.0 mg/L
WA = 11.1 mg/L
toxicity. See WLA sheet attached.
Monitor effluent daily
Monitor effluent daily
> 5 mg/L
WQBEL. Based on a 1991 WLA
DO
Monitor effluent daily
No change
effective in 1995, and State WQ
Monitor &report
standard, 15A NCAC 2B .0200.
instream
Page 13 of 16

NC0031836
Parameter
Current Permit
Proposed Change
Basis for Condition/Change
MA 200 /100 mL
WQBEL. WQ standard, 15A NCAC
Fecal Coliform
WA 400 /100 mL
No change
2B
Monitor effluent daily
.0200.
Total Residual
DM 28.0 µg/L
No change
WQBEL. Capped per NH3/TRC
Chlorine
Monitor effluent daily
WLA Calculation.
Monitor & report
Temperature
effluent daily
Monitor & report
No change
15A NCAC 2B.0500
instream
Monitor & report
Conductivity
effluent daily
No change
15A NCAC 2B.0500; presence of
Monitor & report
SIUs.
instream
15A NCAC 2B.0500; weekly
monitoring was set in 2001 for
development of nutrient
Total Nitrogen
Monitor & report
Add monthly instream
management strategy. Instream
effluent weekly
monitoring
monitoring added to address
concerns of nutrients in the lower
adkin River basin entering High
ock Lake
Total Kjeldahl
No requirement
Add weekly effluent
and monthly instream
To better understand nitrogen
Nitrogen (TKN)
monitoring
concentrations.
Nitrite -Nitrate
No requirement
Add weekly effluent
and monthly instream
To better understand nitrogen
(NO3+NOz)
monitoring
concentrations.
15A NCAC 2B.0500; weekly
monitoring was set in 2001 for
development of nutrient
Total Phosphorus
Monitor & report
Add monthly instream
management strategy. Instream
effluent weekly
monitoring
monitoring added to address
concerns of nutrients in the lower
Yadkin River basin entering High
Rock Lake.
pH
Between 6 and 9 SU
No change
WQBEL. WQ standard, 15A NCAC
Monitor effluent daily
2B .0200.
Quarterly effluent and
Based on adoption of hardness -
Total Hardness
upstream monitoring;
instream monitoring
Remove instream
dependent metals. Monitoring
waived if member of
monitoring waiver.
coalitions will not sample for
monitoring coalition.
Hardness.
Page 14 of 16

NCO031836
Parameter
Current Permit
Proposed Change
7 Basis for Condition/Change
Reasonable potential to exceed water
Total Chromium
No requirement
Add monthly effluent
quality standard (RP) found from
monitoring
one result > allowable concentration
(Cw) for Chromium VI (Cr-VI).
Add monthly effluent
RP found from one result >
Chromium IV
No requirement
monthly
allowable concentration (Cw) for
Chromium VI (Cr-VI).
Total Copper
MA = 23.9 µg/L
DM = 31.0 µg/L
No change
WQBEL. RP found via RPA using
Monitor monthly
updated Hardness data.
Total Lead
No requirement
Add quarterly effluent
No RP found, maximum predicted
monitoring
value > 50 /o Cw.
Total Nickel
No requirement
Add monthly effluent
RP found from one result >
monthly
allowable concentration.
Total Zinc
No requirement
Add quarterly effluent
No RP found, maximum predicted
monitoring
value > 50 /o Cw.
Bis(2-ethylhexyl)
No requirement
Add quarterly effluent
RP found with limited dataset (n < 8
phthalate
monitoring
samples) and 1 result > Cw
Total Mercury
Mercury Minimization
Reword requirement to
Statewide Mercury TMDL
Plan (MMP)
maintain MMP
Add quarterly
monitoring with option
to request monitoring
Based on industrial user types
1,4-Dioxane
No requirement
reduction after 24
known to be potential sources, data
months.
are needed to evaluate.
Add reopener
condition.
Add quarterly
PFAS
No requirement
monitoring with
EPA recommendations (guidance
pretreatment
memo, 12/5/2022).
requirements
Ceriodaphnia dubia
WQBEL. No toxics in toxic
Chronic Toxicity
Pass/Fail at 55%
Update language in
amounts. 15A NCAC 2B.0200 and
effluent.
special condition.
15A NCAC 2B.0500
M
Monitor quarterly
Effluent Pollutant
Conduct three times
Update sample years
40 CFR 122
Scan
per permit cycle
to 2026, 2027, 2028.
Electronic Reporting
Special Condition
Update language in
In accordance with EPA Electronic
special condition.
Reporting Rule 2015.
Footnote.
1. MGD = Million Gallons per Day; MA = Monthly Average; WA = Weekly Average; DM = Daily
Maximum.
Page 15 of 16

NC0031836
13. Public Notice Schedule
Permit to Public Notice: xx/xx/2024
Per 15A NCAC 2H .0109 & .0111, The Division will receive comments for a period of 30 days following
the publication date of the public notice. Any request for a public hearing shall be submitted to the Director
within the 30 days comment period indicating the interest of the party filing such request and the reasons
why a hearing is warranted.
14. NPDES Division Contact
If you have any questions regarding any of the above information or on the attached permit, please contact
Gary Perlmutter at [phone] or via email at [e-mail].
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: NA
16. Fact Sheet Attachments (if applicable):
• Three Effluent Pollutant Scans
• Four 2nd species toxicity test reports
• Sludge management description
• Chemical Addendum
• NPDES Pretreatment POC form
• 2022 303(d) list of impaired waters, pp 176-177 jr
• QF16 Fish Community Report
• Renewal application cover letter with component list
• 1987 Authorized to Construct to 6.0 MGD
• Letter from City re: completion of 1987-authorized construction to 6.0 MGD
• Monitoring Report Violations
• WET Test summary
• Compliance Inspection report, 3/10/2023
• Waste load allocations for TRC and NH3-N
• Instream hardness data
• Correspondence re: metals data verification
• RPA Spreadsheet Summary and dissolved to total metal calculator
• Dissolved Metals Fact Sheet memo
• Correspondence re: mercury data verification
• Mercury WQBEL/TBEL evaluations
Page 16 of 16

Contact: Brandy Johnson
Report Date:
2/6/2020
Client: City of Statesville
NPDES#:
NC0020591
P.O. Box 1111
Project:
PPA-4th Creek
Statesville, NC 28687
Date Sample Rcvd:
1/16/2020
Meritech Work Order # 011620123
Sample: Effluent Composite
1/15-16/20
Parameters
Result
Analysis Date
Reporting Limit
Method
Total Dissolved Solids
161 mg/L
1/17/20
10.0 mg/L
SM 2540C
Ammonia, Nitrogen
1.9 mg/L
1/21/20
0.1 mg/L
EPA 350.1
TKN
2.41 mg/L
1/23/20
0.20 mg/L
EPA 3SIA
Nitrate/Nitrite, Nitrogen
0.61 mg/L
1/22/20
0.10 mg/L
EPA 353.2
Nitrogen, total
3.02 mg/L
1/23/20
0.20 mg/L
EPA 353.2
Antimony, total
<0.025 mg/L
1/24/20
0.025 mg/L
EPA 200.7
Arsenic, total
<0.010 mg/L
1/24/20
0.010 mg/L
EPA 200.7
Beryllium, total
<0.005 mg/L
1/24/20
0.005 mg/L
EPA 200.7
Cadmium, total
<0.002 mg/L
1/24/20
0.002 mg/L
EPA 200.7
Chromium, total
<0.005 mg/L
1/24/20
0.005 mg/L
EPA 200.7
Copper, total
0.036 mg/L
1/24/20
0.002 mg/L
EPA 200.7
Lead, total
<0.010 mg/L
1/24/20
0.010 mg/L
EPA 200.7
Mercury, total
<0.0002 mg/L
1/21/20
0.0002 mg/L
EPA 245.1
Nickel, total
<0.010 mg/L
1/24/20
0.010 mg/L
EPA 200.7
Phosphorus, total
1.05 mg/L
1/24/20
0.020 mg/L
EPA 200.7
Selenium, total
<0.010 mg/L
1/24/20
0.010 mg/L
EPA 200.7
Silver, total
<0.005 mg/L
1/24/20
0.005 mg/L
EPA 200.7
Thallium, total
<0.020 mg/L
1/24/20
0.020 mg/L
EPA 200.7
Zinc, total
0.030 mg/L
1/24/20
0.010 mg/L
EPA 200.7
Hardness (titration)
48 mg/L
1/30/20
1 mg/L
SM 2340C
EPA 625.1
Attached
1/28/20
-
EPA 625.1
Meritech Work Order # 011620124 Sample: Effluent Grab
1/16/20
Parameters
Result Analysis Date Reporting Limit Method
Cyanide, total
<0.005 mg/L
1/22/20 0.005 mg/L EPA 335.4
Oil & Grease (HEM)
<5 mg/L
1/21/20 5 mg/L EPA 1664B
Phenols, total
0.010 mg/L
1/17/20 0.010 mg/L EPA 420.1
EPA 624.1 + AA
Attached
1/22/20 - - EPA 624.1
1 hereby certify that I have reviewed and approve these data, Al I AO-W o-1voui
aboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone] fax.[phone]

Client:
City of Statesville
Meritech ID#:
011620123
Project:
PPA 4th Creek
Analysis:
01/28/20
Client Sample ID:
Effluent
Extraction:
01/22/20
Sample Collection:
01/16/20
Analyst:
PM
Report Date:
01/29/20
Dilution Factor:
1
EPA 625.1 SEMIVOLATILE ORGANICS
Parameter
Result
Parameter
Result
Acenaphthene
<10 ug/L
Fluoranthene
<10 ug/L
Acenaphthylene
<10 ug/L
Fluorene
<10 ug/L
Anthracene
<10 ug/L
Hexachlorobenzene
<10 ug/L
Benzidine
<50 ug/L
Hexachlorobutadiene
<10 ug/L
Benzo(a)anthracene
<10 ug/L
Hexachlorocyclopentadiene
<50 ug/L
Benzo(a)pyrene
<10 ug/L
Hexachloroethane
<10 ug/L
Benzo(b)fluoranthene
<10 ug/L
Indeno(1,2,3-cd)pyrene
<10 ug/L
Benzo(k)fluoranthene
<10 ug/L
Isophorone
<10 ug/L
Benzo(g,h,i)perylene
<10 ug/L
2-Methylnaphthalene
<10 ug/L
Benzyl butyl phthalate
<10 ug/L
Naphthalene
<10 ug/L
Bis(2-chloroethoxy)methane
<10 ug/L
Nitrobenzene
<10 ug/L
Bis(2-chloroethyl)ether
<10 ug/L
N-Nitrosodimethylamine
<10 ug/L
Bis(2-chloroisopropyl)ether
<10 ug/I,
N-Nitrosodi-n-propylamine
<10 ug/L
Bis(2-ethylhexyl)phthalate
<10 ug/L
N-Nitrosodiphenylamine
<10 ug/L
4-Bromophenyl phenyl ether
<10 ug/L
Phenanthrene
<I0 ug/L
2-Chloronaphthalene
<10 ug/L,
Pyrene
<10 ug/L
4-Chlorophenyl phenyl ether
<10 ug/L
1,2,4-Trichlorobenzene
<10 ug/L
Chrysene
<10 ug/L
Dibenzo(a,h)anthracene
<10 ug/L
4-Chloro-3-methylphenol
<10 ug/L
1,2-Dichlorobenzene
<10 ug/L
2-Chlorophenol
<10 ug/L
1,3-Dichlorobenzene
<10 ug/L
2,4-Dichlorophenol
<10 ug/L
1,4-Dichlorobenzene
<10 ug/L
2,4-Dimethylphenol
<10 ug/L
3,3'-Dichlorobenzidine
<50 ug/L
2,4-Dinitrophenol
<50 ug/L
Diethyl phthalate
<10 ug/L
4,6-Dinitro-2-methylphenol
<50 ug/L
Dimethyl phthalate
<10 ug/L,
2-Nitrophenol
<10 ug/L
Di-n-butyl phthalate
<10 ug/L
4-Nitrophenol
<50 ug/L
2,4-Dinitrotoluene
<10 ug/L
Pentachlorophenol
<50 ug/L
2,6-Dinitrotoluene
<10 ug/L
Phenol
<10 ug/L
Di-n-octyl phthalate
<10 ug/L
2,4,6-Trichlorophenol
<I0 ug/L
1,2-Diphenylhydrazine
<10 ug/L
I hereby certify that I have reviewed and approve these data.
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

Client:
City of Statesville Meritech ID#:
011620124
Project:
PPA-4th Creek Analysis:
01/22/20
Client Sample ID:
Effluent Analyst:
VWV
Sample Collection:
01/16/20 Dilution Factor:
1
Report Date:
02/03/20
EPA 624.1 VOLATILE ORGANICS
Parameter
Result
Benzene
< 1.00 ug/L
Dichlorobromomethane
< 1.00 ug/L
Bromoform
< 1.00 ug/L
Methyl Bromide
< 5.00 ug/L
Carbon Tetrachloride
< 1.00 ug/L
Chlorobenzene
< 1.00 ug/L
Chloroethane
< 5.00 ug/L
2-Chloroethyl vinyl ether
< 5.00 ug/L
Chloroform
< 1.00 ug/L
Methyl Chloride
< 5.00 ug/L
Chlorodibromomethane
< 1.00 ug/L
1,2-Dibromoethane
< 1.00 ug/L
I,I-Dichloroethane
< 1.00 ug/L
1,2-Dichloroethane
< 1.00 ug/L
1,4-Dichlorobenzene
< 1.00 ug/L
1,2-Dichlorobenzene
< 1.00 ug/L
1,3-Dichlorobenzene
< 1.00 ug/L
1, 1 -Dichloroethylene
< 1.00 ug/L
trans-1,2-Dichloroethylene
< 1.00 ug/L
1,2-Dichloropropane
< 1.00 ug/L
cis-1,3-Dichloropropylene
< 1.00 ug/L
trans-1,3-Dichloropropylene
< 1.00 ug/L
Ethyl benzene
< 1.00 ug/L
Methylene chloride
< 1.00 ug/L
1,1,2,2-Tetrachloroethane
< 1.00 ug/L,
Tetrachloroethylene
< 1.00 ug/L
Toluene
< 1.00 ug/L
1, 1, 1 -Trichloroethane
< 1.00 ug/L,
1,1,2-Trichloroethane
< 1.00 ug/L
Trichloroethylene
< 1.00 ug/L
Trichlorofluoromethane
< 5.00 ug/L
Vinyl chloride
< 5.00 ug/L
Additional Compounds
Acrolein
<50.0 ug/L
Acrylonitrile
<10.0 ug/L
I hereby certify that I have reviewed and approve these data.
Laboratory Repr entative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

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ee
Permit NCO031836
Ae (4e) EFFLUENT POLLUTANT SCAN (Municipal PoTws) [NCGS 143:215.1(b))
.
The Permittee shall perform
a total of three .(3} Effluent Pollutant Scans for all ammeters fisted below.
p
One scan must be performed in
each of the follovvin `
g Years 2020, 2021; and 2022 Analytical methods
shall be in accordance with 40
CFR Part 136 and shall be sufficiently sensitive to determine whether
parameters are present in concentrations greater than applicable
standards and criteria. Samples should
be collected with one
.quarterly Toxicity test each year, and must represent seasonal variation
[,e.; do not
sample in.the salve quarter every year]. Unless otherwise. indicated, i -ieials shall be aa�alyzed as "total
recoverable,"
Ammonia (as N)
C0610
12 dichtoroethane 32103
Bps (2 chloroeihoxy) methane
34278
Chlorine (total residual, TRC) 50060
Trans-1,2-dichlomethylene 34546
Bis (2-chloroethyu ether
34273
Dissolved oxygen
00300
11-dichloroethY lene 34.501
Bis (2-chioroisoprbpyljether
34283
Nitrate
00620
1,2-dichloropmpane 34541
BIs 0ethy►he4lj phthalate
39100
Nitrite.
00615
13�irchioropropylene 77163
4bramophenyl phenyl ether
34636
Kjeldahl nitrogen
00625
Ethylbenzene 34371
Butyl bepzyl phthalate
34292
Oil and grease
00556
Methyl bromide 34413
2 chloronaphihalene
34581
Phosphorus
C0665
Methyl chloride 34418
4-chlorophenyl phenyl ether
34641
Total dissolved solids
70295
Methylene chloride 34423
Chrysene
34324
Hardness
moo
1,1,2,2-tetradloroethane 81549
Di-n-b*:I phthalate
39110
Antimony
01097
Te4rac4loroetbylene 34475
Di-n-octyl phthalate
34596
Arsenic
01002
Toluene 34010
Dibenzo(a,h)anthiaoene
34556
Beryllium
01012
1,1,1-trichlorcethane 34506
1,2 dichlorotienzene
34536
Cadmium
01027
1,1,2-trichloroethane 34511
1,3-dichlorobenzene
34566
Chromium
01034
Tdchloroethylene 39180
1,4-dichlorotienzene
34571
Copper
01042
Vinyl chloride 39175
3 3-dichlonibe'nzidine
34631
Lead
Mercury (Method 1631E)
01051
COMER
Acid -extractable compounds:
P-chloro-m-cresol
Diethyl phthalate
34336
34452
Dimethyi phthalate
34341
Nickel
01067
2-chlorophenol 34586
24-dinitrotoluene
34611
Selenium
01147
2,4-dichiorophenol 34661
2,6-dinitrotoluene
C0626
Silver
01077
2,4-dimethylphenol 34606
1,2-diphenylhydrazine
34346
Thallium
01059
4,6-dinitro-o-cresol 34657
Fluoranttiene
C0376
Zinc
01092
2,4-dinitrophenol 34616
Fluorene
34381
Cyanide
00720
2-nitrophenol 34591
Hexachlombenzene
C0700
Total phenolic compounds
32730
4-nitrophenol 34646
Hexachlorobutadiene
39702
Volatile orcaniccom4ounds•
Pentachlorophenol 39032
Hexachlomcycto-pentadiene
34386
Acrolein
34210
Phenol 34694
Hexachlorcethane
34396
Acrylonitrile
34215
2,4,6-trichiorophenol 34621
Indeno(1,2,3-cd)pyrene
34403
Benzene
34030
Base-neutralcomnounds:
isophorone
34408
Bromoform
32104
Acenaphthene 34205
Naphthalene
34696
Carbon tetrachloride
32102
Acenaphthylene 34200
Nitrobenzene
34447
Chlorobenzene
34301
Anthracene CO220
N-nitrosodi-n-propylamine
34428
Chlorodibromomethane
34306
Benzidine 39120
N-nitrosodimethylamine
34438
Chloroethane
85811
Benzo(a)anthracene 34526
N-nitrosodiphenylamine
34433
2-chloroethyl vinyl ether
34576
Senzo(a)pyrene 34247
Phenanthrene
34461
Chloroform
32106
3,4 benzotluoranthene 34230
Pyrene
34469
Dichlorobromomethane
32101
Benzo(ghi)perylene 34521
1,2,4-tdchlorobenzene
34551
1,1-dichloroethane
34496
Benzo(k)fluoranthene 34242
Page 9 of 16

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No.165
Jt-
Contact: Brandy Johnson
Report Date:
4/28/2021
Client: City of Statesville
NPDES#:
NC0020S91
P.O. Box 1111
Project:
PPA-4th Creek
Statesville, NC 28687
Date Sample Rcvd:
4/15/2021
Meritech Work Order # 04152142
Sample:
Effluent Composite
4/14-15/21
Parameters
Result
Analysis Date
Reporting Limit
Method
Total Dissolved Solids
175 mg/L
4/16/21
10.0 mg/L
SM 2540C
Ammonia, Nitrogen
13.6 mg/L
4/19/21
0.1 mg/L
EPA 350.1
TKN
17.9 mg/L
4/20/21
0.20 mg/L
EPA 351.1
Nitrate/Nitrite, Nitrogen
0.16 mg/L
4/21/21
0.10 mg/L
EPA 353.2
Nitrogen, total
18.1 mg/L
4/21/21
0.20 mg/L
EPA 353.2
Antimony, total
<0.025 mg/L
4/23/21
0.025 mg/L
EPA 200.7
Arsenic, total
<0.010 mg/L
4/23/21
0.010 mg/L
EPA 200.7
Beryllium, total
<0.005 mg/L
4/23/21
0.005 mg/L
EPA 200.7
Cadmium, total
<0.002 mg/L
4/23/21
0.002 mg/L
EPA 200.7
Chromium, total
0.039 mg/L
4/23/21
0.005 mg/L
EPA 200.7
Copper, total
0.005 mg/L
4/23/21
0.002 mg/L
EPA 200.7
Lead, total
<0.010 mg/L
4/23/21
0.010 mg/L
EPA 200.7
Mercury, total
<0.0002 mg/L
4/20/21
0.0002 mg/L
EPA 245.1
Nickel, total
0.078 mg/L
4/23/21
0.010 mg/L
EPA 200.7
Phosphorus, total
0.947 mg/L
4/22/21
0.020 mg/L
EPA 200.7
Selenium, total
<0.010 mg/L
4/23/21
0.010 mg/L
EPA 200.7
Silver, total
<0.005 mg/L
4/23/21
0.005 mg/L
EPA 200.7
Thallium, total
<0.040 mg/L
4/23/21
0.040 mg/L
EPA 200.7
Zinc, total
0.026 mg/L
4/23/21
0.010 mg/L
EPA 200.7
Hardness (titration)
44 mg/L
4/22/21
1 mg/L
SM 2340C
EPA 625.1
Attached
4/23/21
EPA 625.1
Meritech Work Order #
04152143 Sample:
Effluent Grab
4/15/21
Parameters
Result
Analysis Date
Reporting Limit
Method
Cyanide, total
<0.005 mg/L
4/19/21
0.005 mg/L
EPA 335.4
Oil & Grease (HEM)
<5 mg/L
4/19/21
5 mg/L
EPA 1664B
Phenols, total
<0.010 mg/L
4/20/21
0.010 mg/L
EPA 420.1
EPA 624.1 + AA
Attached
4/16/21
��
EPA,624.1
hereby certify that / have reviewed and approve these data.
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone] fax.[phone]

MERITECH, INC.
A�i- Environmental Laboratories
IOU Laboratory Certification #165
Client: City of Statesville Meritech ID#: 04152143
Project: PPA - 4th Creek Analysis: 04/16/21
Client Sample ID: Effluent Analyst: VWV
Sample Collection: 04/15/21 Dilution Factor: 1
Report Date: 04/20/21
EPA 624.1 VOLATILE ORGANICS
Parameter
Benzene
Dichlorobromomethane
Bromoform
Methyl Bromide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
2-Chloroethyl vinyl ether
Chloroform
Methyl Chloride
Chlorodibromomethane
1,2-Dibromoethane
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
I,1-Dichloroethylene
trans-1,2-Dichloroethylene
1,2-Dichloropropane
cis-1,3-Dichloropropylene
trans-1,3-Dichloropropylene
Ethyl benzene
Methylene chloride
1,1,2,2-Tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethylene
Trichl orofluoromethane
Vinyl chloride
Additional Compounds
Acrolein
Acrylonitrile
I hereby certify that I have reviewed and approve these data.
Result
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 5.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 5.00 ug/L,
< 5.00 ug/L
1.18 ug/L
< 5.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L,
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
6.20 ug/L,
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 5.00 ug/L
< 5.00 ug/L.
<50.0 ug/L
<10.0 ug/L,
Laboratory Repr ive
642 Tamco Road ` Reidsville, NC 27320
[phone]' [e-mail]

MERI TECH,
INC.
Environmental Laboratories
Laboratory Certificate #165
Client:
City of Statesville
Meritech ID#:
04152142
Project:
PPA 4th Creek
Analysis:
04/23/21
Client Sample ID:
Effluent
Extraction:
04/19/21
Sample Collection:
04/15/21
Analyst:
PM
Report Date:
04/26/21
Dilution Factor:
1
EPA 625.1 SEMIVOLATILE ORGANICS
Parameter
Result
Parameter
Result
Acenaphthene
<10 ug/L
Fluoranthene
<10 ug/L
Acenaphthylene
<10 ug/L
Fluorene
<10 ug/L
Anthracene
<10 ug/L
Hexachlorobenzene
<10 ug/L
Benzidine
<50 ug/L
Hexachlorobutadiene
<10 ug/L
Benzo(a)anthracene
<10 ug/L
Hexachlorocyclopentadiene
<50 ug/L
Benzo(a)pyrene
<10 ug/L
Hexachloroethane
<10 ug/L
Benzo(b)fluoranthene
<10 ug/L
Indeno(1,2,3-cd)pyrene
<10 ug/L
Benzo(k)fluoranthene
<10 ug/L
Isophorone
<10 ug/L
Benzo(g,h,i)perylene
<10 ug/L
2-Methylnaphthalene
<10 ug/L
Benzyl butyl phthalate
<10 ug/L
Naphthalene
<10 ug/L
Bis(2-chloroethoxy)methane
<10 ug/L
Nitrobenzene
<10 ug/L
Bis(2-chloroethyl)ether
<10 ug/L
N-Nitrosodimethylamine
<10 ug/L
Bis(2-chloroisopropyl)ether
<10 ug<L
N-Nitrosodi-n-propylamine
<10 ug/L
Bis(2-ethylhexyl)phthalate
11.1 uglL
N-Nitrosodiphenylamine
<10 ug/L
4-Bromophenyl phenyl ether
<10 ug/L
Phenanthrene
<10 ug/L
2-Chloronaphthalene
<10 ug/L
Pyrene
<10 ug/L
4-Chlorophenyl phenyl ether
<10 ug/L
1,2,4-Trichlorobenzene
<10 ug/L
Chrysene
<10 ug/L
Dibenzo(a,h)anthracene
<10 ug/L
4-Chloro-3-methylphenol
<10 ug/L
1,2-Dichlorobenzene
<10 ug/L
2-Chlorophenol
<10 ug/L
1,3-Dichlorobenzene
<10 ug/L
2,4-Dichlorophenol
<10 ug/L
1,4-Dichlorobenzene
<10 ug/L
2,4-Dimethylphenol
<10 ug/L
3,T-Dichlorobenzidine
<50 ug/L
2,4-Dinitrophenol
<50 ug/L
Diethyl phthalate
<10 ug/L
4,6-Dinitro-2-methylphenol
<50 ug/L
Dimethyl phthalate
<10 ug/L
2-Nitrophenol
<10 ug/L
Di-n-butyl phthalate
<10 ug/L
4-Nitrophenol
<.50 ug/L
2,4-Dinitrotoluene
<10 ug/L
Pentachlorophenol
<50 ug/L
2,6-Dinitrotoluene
<10 ug/L
Phenol
<10 ug/L
Di-n-octyl phthalate
<10 ug/L
2,4,6-Trichlorophenol
<10 ug/L
1,2-Diphenylhydrazine
<10 ug/L
I hereby certify that I have reviewed and approve these data. l/t, 'H - ram/, 44 ,/ r
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

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Meritech, Inc.
Environmental Laboratory
Laboratory Certification No. 165
Contact: Brandy Johnson
Client: City of Statesville
P.O. Box 1111
Statesville, NC 28687
Report Date:
NPDES#:
Project:
Date Sample Rcvd:
8/5/2022
NC0020591
PPA-4th Creek
7/12/2022
Meritech Work Order # 07122284
Sample:
Effluent Composite
7/11-12/22
Parameters
Result
Analysis Date
Reporting Limit
Method
Total Dissolved Solids
193 mg/L
7/13/22
10.0 mg/L
SM 2540C
Ammonia, Nitrogen
<0.1 mg/L
7/13/22
0.1 mg/L
EPA 350.1
TKN
0.61 mg/L
7/21/22
0.20 mg/L
EPA 351.1
Nitrate/Nitrite, Nitrogen
6.58 mg/L
7/14/22
0.10 mg/L
EPA 353.2
Nitrogen, total
7.19 mg/L
7/21/22
0.20 mg/L
EPA 353.2
Antimony, total
<0.025 mg/L
7/28/22
0.025 mg/L
EPA 200.7
Arsenic, total
<0.010 mg/L
7/28/22
0.010 mg/L
EPA 200.7
Beryllium, total
<0.005 mg/L
7/28/22
0.005 mg/L
EPA 200.7
Cadmium, total
<0.002 mg/L
7/28/22
0.002 mg/L
EPA 200.7
Chromium, total
<0.005 mg/L
7/28/22
0.005 mg/L
EPA 200.7
Copper, total
0.005 mg/L
7/28/22
0.002 mg/L
EPA 200.7
Lead, total
<0.010 mg/L
7/28/22
0.010 mg/L
EPA 200.7
Mercury, total
<0.0002 mg/L
7/19/22
0.0002 mg/L
EPA 245.1
Nickel, total
<0.010 mg/L
7/28/22
0.010 mg/L
EPA 200.7
Phosphorus, total
2.21 mg/L
7/27/22
0.020 mg/L
EPA 200.7
Selenium, total
<0.010 mg/L
8/4/22
0.010 mg/L
EPA 200.7
Silver, total
<0.005 mg/L
7/28/22
0.005 mg/L
EPA 200.7
Thallium, total
<0.020 mg/L
7/28/22
0.020 mg/L
EPA 200.7
Zinc, total
0.059 mg/L
7/28/22
0.010 mg/L
EPA 200.7
Hardness (titration)
44 mg/L
8/4/22
1 mg/L
SM 2340C
EPA 625.1
Attached
7/18/22
EPA 625.1
Meritech Work Order #
07122285 Sample: Effluent Grab
7/12/22
Parameters
Result Analysis Date
Reporting Limit
Method
Cyanide, total
<0.005 mg/L 7/18/22
0.005 mg/L
EPA 335.4
Oil & Grease (HEM)
<5.0 mg/L 7/18/22
5 mg/L
EPA 1664B
Phenols, total
0.011 mg/L 7/15/22
0.010 mg/L
EPA 420.1
EPA 624.1 + AA
Attached 7/15/22
EPA 624.1
hereby certify that / have reviewed and approve these data. .AAiQcuE)csla
+1a ak-k
k )
Laboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone] fax.[phone]

MERI TECH, INC.
a- t . Environmental Laboratories
Laboratory Certificate #165
Client:
City of Statesville
Meritech ID#:
07122284
Project:
PPA 4th Creek
Analysis:
07/18/22
Client Sample ID:
4th Creek Effluent
Extraction:
07/13/22
Sample Collection:
07/12/22
Analyst:
PM
Report Date:
07/23/22
Dilution Factor:
1
EPA 625.1 SEMIVOLATILE ORGANICS
Parameter
Result
Parameter
Result
Acenaphthene
<10 ug/L
Fluoranthene
<10 ug/L
Acenaphthylene
<10 ug/L
Fluorene
<10 ug/L
Anthracene
<10 ug/L
Hexachlorobenzene
<10 ug/L
Benzidine
<50 ug/L
Hexachlorobutadiene
<10 ug/L
Benzo(a)anthracene
<10 ug/L
Hexachlorocyclopentadiene
<50 ug/L
Benzo(a)pyrene
<10 ug/L
Hexachloroethane
<10 ug/L
Benzo(b)fluoranthene
<10 ug/L
Indeno(1,2,3-cd)pyrene
<10 ug/L
Benzo(k)fluoranthene
<10 ug/L
Isophorone
<10ug/L
Benzo(g,h,i)perylene
<10 ug/L
2-Methylnaphthalene
<10 ug/L
Benzyl butyl phthalate
<10 ug/L
Naphthalene
<10 ug/L
Bis(2-chloroethoxy)methane
<10 ug/L
Nitrobenzene
<10 ug/L
Bis(2-chloroethyl)ether
<10 ug/L
N-Nitrosodimethylamine
<10 ug/L
Bis(2-chloroisopropyl)ether
<10 ug/L
N-Nitrosodi-n-propylamine
<10 ug/L
Bis(2-ethylhexyl)phthalate
<10 ug/L
N-Nitrosodiphenylamine
<10 ug/L
4-Bromophenyl phenyl ether
<10 ug/L
Phenanthrene
<10 ug/L
2-Chloronaphthalene
<10 ug/L
Pyrene
<10 ug/L
4-Chlorophenyl phenyl ether
<10 ug/L
1,2,4-Trichlorobenzene
<10 ug/L
Chrysene
<10 ug/L
Dibenzo(a,h)anthracene
<10 ug/L
4-Chloro-3-methylphenol
<10 ug/L
1,2-Dichlorobenzene
<10 ug/L
2-Chlorophenol
<10 ug/1.
1,3-Dichlorobenzene
<10 ug/L
2,4-Diehlorophenol
<10 ug/L
1,4-Dichlorobenzene
<10 ug/L
2,4-Dimethylphenol
<10 ug/L
3,T-Dichlorobenzidine
<50 ug/L
2,4-Dinitrophenol
<50 ug/L
Diethyl phthalate
<10 ug/L
4,6-Dinitro-2-methylphenol
<50 ug/L
Dimethyl phthalate
<10 ug/L
2-Nitrophenol
<10 ug/L
Di-n-butyl phthalate
<10 ug/L
4-Nitrophenol
<50 ug/L
2,4-Dinitrotoluene
<10 ug/L
Pentachlorophenol
<50 ug/L
2,6-Dinitrotoluene
<10 ug/L
Phenol
<10 ug/L
Di-n-octyl phthalate
<10 ug/L
2,4,6-Trichlorophenol
<10 ug/L
1,2-Diphenylhydra7ine
<10 ug/L
I hereby certify that I have reviewed and approve these data. V �"/-I/I -Ii'
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

MERI TECH, INC.
Environmental Laboratories
Laboratory Certification #165
Client:
City of Statesville Meritech ID#:
07122285
Project:
4th Creek W WTP Analysis:
07/15/22
Client Sample ID:
4th Creek Effluent Analyst:
VWV
Sample Collection:
07/12/22 Dilution Factor:
1
Report Date:
07/19/22
EPA 624.1 VOLATILE ORGANICS
Parameter
Benzene
Dichlorobromomethane
Bromoform
Methyl Bromide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
2-Chloroethyl vinyl ether
Chloroform
Methyl Chloride
Chlorodibromomethane
1,2-Dibromoethane
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,1-Dichloroethylene
trans-1,2-Dichloroethylene
1,2-Dichloropropane
cis- 1,3-Dichl oropropylene
trans- l ,3 -Dichl oropropylene
Ethyl benzene
Methylene chloride
1,1,2,2-Tetrachloroethane
Tetrachloroethylene
Toluene
1, 1, 1 -Trichloroethane
1,1,2-Trichloroethane
Trichloroethylene
Trichl orofl uoromethane
Vinyl chloride
Additional Compounds
Acrolein
Acrylonitrile
I hereby certify that I have reviewed and approve these data.
Result
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 5.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 5.00 ug/L
< 5.00 ug/L
1.73 ug/L
< 5.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L,
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L,
< 1.00 ug/L
< 1.00 ug/L
< 5.00 ug/L
< 5.00 ug/L,
<50.0 ug/L
<10.0 ug/L
Laboratory Repr ive
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

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bec,Permit
NC0031836
A, (4-) EFFLUENT NT
POLLUTANT SCAN (Municipal P0TWs) [NCGS 143-215.1(a)]
The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below.
One scan must be performed in
each of the following years;
shall be in accordance
with. 40
2020, 2021, an0.2022, Analytical methods
CFR Part 136 and be
shall sufficiently
sensitive to determine
whether
parameters. are present in concentrations greater than applicable
standards and criteria: Samples should
collected with one quarterly toxicity test each year, and must represent seasonal variation [i e.; do not
sa
sample in the same quarter every year]. Unless otherwise indicated metals shall be analyzed as "total
recoverable
Ammonia (as N)
C0610.
1,2dchloroe hone 32103
Bis (2-chloroe hoxy) methane
34278
Chloride (total residual, TRC)
50060
Trans l,2dichlomethylene - 34548 -..
Bis (2-chlcroethyl) ether
34273
Dissolved oxygen
-
00300
-
1,ldichloreethlene ---
y 34501
Bis(2-chlaroisopmpygefher
34283
NBrate
C0620
1,2-dichloropopane 34541
- Bis(2-efhylhexyl)phfhalate
39100
Nitrite
0061$
1,3dlchloropropylene 7716.3
4-bromapheoyl phenyle_ ther
34636
KJeldahl nitrogen
00625
Flhylberrzene 34371
Butyl bapzyl phthalate
34292
Otandgrease
00656
Methyl brodde
344i3
'2-chloronaphthalene
34581
Phosphorus
C0665
Methyl chloride
34416
4-ftrophehyl phenyl ether
$4641
Total dissolved solids
70295
Methylene chloride 34423
Chrysehe
34320
Hardness
00900
1,1,2,2-fetrachlorcefhane. 81549
Oi-dI-bubrlphthalate
39110
Antimony
01097
Tetracnloroethylene 34475
Di-n-",phthalate
34596
Arsenic
01002
Toluene 34010
Dibenio(a,h)anthracene
34556
Beryllium
01012
1,1,1-triGhloreethane 34506
11241chlombenzene
34536
Cadmium
01027
1,1,2-lrichloraethane 34511
1,3-dichlorobenzerre
34566
Chromium
01034
Tdchloroethylene 39180
1kdichloroberrzsne
34571
Copper
01042
Vinyl chloride 39175
3,34chlor6benadme
34631
Lead
Mercury' (Method.1631E)
01051
COMER
Acid-e)iractable cormounds:
P-chloro-m-cresol
Diethyl phthalate
34336
34452
Dimethyl phthalate
34341
Nickel
01067
2-chloiophenol 34586
2,4-66toluene
34611
Selenium
01147
2,44chforophenol 34661
2,6dinitrotoluene
C0626
Silver
01077
2,4dmet1hylphenol 34606
12dipheny1hydrazine,
34346
Thallium
01059
4,6dmibo-o-crescl 34657
Flucranthene
C0376
Zinc
01092
2,4dmitrophenol 34616
Fluorene
34381
Cyanide
00720
2-nitrophenol 34591
Hexachlarobenzene
C0700
Total phenolic compounds
32730
4-nibophenol 34646
Hexachlorobutadiene
39702
Volatile areankcomnovnds:
Pentachlorophenol 39032
Hexachlamcyclo-pentadiene
34386
Acrolein
34210
Phenol 34694
Hexachloroethane
34396
Acrylonitrile
34215
$4,6-tdchlorophenol 34621
Indeno(1,2,3-4pymne
34403
Benzene
34030
Base-neutralcomnounds.
Isophorone
34408
Bromofonn
32104
Acenaphthene 34205
Naphthalene
34696
Carbon tetrachloride
32102
Acenaphthylene 34200
Nitroben7ena
34447
Chlorobenzene
Mai
Anthracene CO220
N-nitrosodi-n-propylamine
34428
Chlorodibromomethane
34306
Benzidine 39120
N-nitrosodimethylamine
34438
Chloroethane
85811
Benzo(a)anthmcene 34526
N-nitrosodiphenylamine
34433
2-chloroathyl vinyl ether
34576
Benzo(a)pyrene 34247
Phenenthrene
34461
Chloroform
32106
3,4 benzotuoranthene 34230
Pyrene
34469
Dichlorobromomethane
32101
Benzo(gh)perylene 34521
1,2,4-idchlorobenzene
34551
14dichloroethane
34496
Benzo(k)Ruoranthene 34242
Page 9 of 16

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Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:4/28/2023
Facility: Statesville - Fourth Creek NPDES # NC00 31836
Pipe M 001 County: Iredell
Signature of Laboratory Supervisor 1
MAIL ORIGINAL TO: Water Sciences Section
Aquatic Toxicology Branch
Division or Water Resources
1621 Mall Service Center
Raleigh, N.C. 27699-1621
Test Initiation DateRlme
%EH. Repl.
Control Surviving #
Original #
WVorlglnal (mg)
13.76 Surviving #
Original #
WVorlglnel (mg)
27.5 Surviving #
Original #
WVorlglnel (rig)
7-6-37 Surviving #
Original #
Wt/odginal (mg)
77,6 Surviving #
Original #
WVorlglnsl (mg)
100 Surviving #
Original #
WVorlglnsl (mg)
Water Quality Date
Control
pH (SU) InIVFIn
DO (mg/L) InIVFIn
Temp (C) InIVFIn
High Concentration
pH (SU) InIVFIn
DO (mg/L) InIVFIn
Temp (C) InIVFIn
Sample
Collection Start Dale
Grab
Composite (Duration)
Hardness (mg/L)
Alkalinity (mg/L)
Conductivity (umhoslcm)
Chlorine(mg/L)
Temp. at Receipt (°C)
4/18/2023 4:26 PM Avg Wt/Surv, Control 0.570
1 2 3 4
r 10
10
10
10
10
10
10
10
0.585
1 0,500
0.684
0.632
10
10
10
10
10
10
10
10
0.644
1 0.555
1 0.551
1 0.694
10
1 10
1 10
10
10
10
10
10
0.528
1 0,520
1 0.566
1 0.697
10
10
10
10
10
10
10
10
% Survival--100-0-1
Avg Wt(mg) 0.570
% Survival 100 0
Avg Wl(mg) 0,610
% Survival 100 0
Avg Wt(mg) 552
% Survival100.0
Test Organisms
Cultured In -House
Outside Supplier
Hatch Dale: 4/17123
Hatch Time: 4:00-5:00 pm
0.888
0,695
0.848
0,865
Avg Wt(mg) 0,841
%SUNlval 1000
10
1 10 1
10
10
10
1 10 1
10
10
0.603
1 0,693 1
AvgWt(mg) 0,818
%Survival 100.0
10
10
10
10
10
10
10
10
0.819
1 0,627 1
0,686
1 0,839 1
Avg Wt(mg) 0.638
Day
n
e
3
d a a
7.73
17.74
17,84
1 7.72
17.91
1 7.64
17,79
17.79
17.85
17,97
17.91 17.82
1 8.0o
1 7.49
8,28
/ 7,23
1 8.03
17.25
1 7.94
1 7.48
18.06
17.62
113,07
1 7.97
18.22 17.88
18,30
16.96
24.6
125.8
124.9
1 25.2
1 25.2
/ 26.8
125.6
1 24.7
1 25.1
124.E
124.3 124,3
124.3
1 25.2
0 1 2 3 4 6 6
7.40
/ 7.84
17.63
17.99
17.61 17.81
17.44 18.05
7.77
17.87
17.86 / 7.79
7,70
17.59
8.18
17.20
1 8.02
17.27
8.08 / 7.11
18.06 / 7.50
7.99
17.85
16.00 / 7.75
8.40
/ 6.72
25.5
124A
1 25.2
125.3
24.6 / 25.1
124.4 / 24.2
24.3
124.6
125.3 / 24.5
24.3
125.6
1 2 3
4/17/2023
4/19/2023
4/2012023
23.6
24.2
24.2
52
56
40
70
76
59
370
379
343
<0.1
<0.1
<0.1
1.7
IA
1.3
Dilution H2O Batch # R17
106 107Hardness (mg/L) 44Alkalinity (mg/L) Conductivity (umhos/cm) 168 164
Survival
Growth
Normal
rl
f l
Horn.Var.
rl
rl
NOEC
100
100
LOEC
>100
>100
ChV
>100
>100
Method
Steel's
Ounnett's
Overall Result
ChV >100
State
Conc.
13.75
Survival
Critical Calculated
10 18
10 18
10 18
10 18
10 18
Growth
Critical Calculated
2.41-1.3505
2.41 0.5108
2.41-1.9663
27.5
55
77.5
2.41-1.3365
100
2.41-1.8823

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MER/TEC"r /NC_
' ENVIRONMENTAL LABORATORIES
A O!v/s/on of Water Technology and Controls, lnc.
Chemical and Physical Determinations
Client: Statesville 4th NPDES#: 0031836 Start Date: 4/18/23
End Date: 4/25/23
Dav
Concentration: control
0-1
1-2
2.3
3.4
4-5
5-6
6-7
Remarks
Soft Synthetic Feshwater
Batch#:
(�7•
[�
O
H: Initial
1161
, gg--
.6
Final
7,
c
2
4
D.O.: Initial
$.,l$
l7
S
,0
)L
t
Final
'7eZ
7,
7.&
'7
,
Temp,: Initial
;tq,
U
24.
k
Final
v
�j,
V 4,
Z
Conductivit : Initial
'7 '
I 1
Ib
1 Lp to
Final
; 5-
1 G
I�
Residual Chlorine:
1
Hardness:
7
Alkalinity:
3 t.
Day
Concentration: 13.75%
0.1
1.2
2-3
3.4
4.5
5.6
6.7
Remarks
H: Initial
717'/C
1
-1
i
Final
7,G3•
7 '
.'
,
D.O.: Initial
e7.1-0
�, qq
a'U1
.JO
A,02
Final
sl
'1.Lo
a&o
,yo
Q
Temp.: Initial
j.
. i
Final
kt
24,
94, L,
Conductivity: Initial
p 1,
Final
7
0l
;OI
1 y
Residual Chlorine:
1
d
GO
Da
Concentration: 27.5%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
H: Initial
-7,1IIP
1,7 S
1i'7
Q
Final
6
—
7
�,`%�
D.O.: Initial
Q.00
6
j
03
Final
7,11
-1-A�S
7.-;" 7
-1
Temp.: Initial
a �,
,
Zy,�
,�9.
Final
n
Conductivity: Initial
on I tp
Final
a
a 3
�a 0\
$
Residual Chlorine:
I L
[-v
/-o,1
60, 1
L0•
L0,

Client: Statesville 4th
MEf2/TECH, /NC_
n NVIRONMBNTAL LABORATORIES
Chemical and Physical Determinations
NPDES#: 0031836 Start Date: 4/18/23
End Date: 4/25/23
Dav
Page 2 of 2
Concentration: 55%
0.1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
H: Initial
1,319
7,
1,77
Final
71
-79
'1, -1
7
D.O.: Initial
-p
,0
3
Final
I Q"j
0
'1. a
%
Temp.: Initial
2,4,
';�
Z
Final
21(,
'
Conductivity:Initial
^
T�
�i to
a to
Final
A61U
oZ
'7a
o'Z
Residual Chlorine:
Da
Concentration: 77.5%
0.1
1.2
2-3
3-4
4.5
5.6
6.7
Remarks
H: Initial
,
% 7$
Final
9
lei
it 2
71
D.O.: Initial
M2
IR01
140
E'Cq
6.17
Final
7
, 2
1. NISL
Temp.: Initial
Y
z510
Final
r
,
Conduotivi : Initial
311
2'
°3),
Q
00
O
Final
3 3 ).
Residual Chlorine:
1 t
x—cr
46,1
t;m
Day
Concentration: 100%
0.1
1-2
2.3
3-4
4.5
5-6
6-7
Remarks
H: Initial
�].L4 D
1,
7•$ (a
Final
9 N
-7,�
'1
,C
7.
i,7
D.O.: Initial
p20
Ff
S,pb
S.00
Final
`it20
,Z
'1,1 `
,O
i,gS
7S
Temp,: Initial
)45,S
95.;�
ZS.3
a
Final
2K•
(,
Conductivity: Initial
��
-770
3
�j"1)
34
'331
4--�,
Final
3
7S
3S3
Residual Chlorine:
Lo
/—O,j
Lo
L
Hardness:
J Z
56
4 p
Alkalinity:
7

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville 4th NPDES#: 0031836 Start Date: 4/18/23
End Date: 4/25/23
Concentration Control
Tuesday
Wednesday Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Rep A 0
—�
Rep B 0
Rep C 0
Rep D 0_
Concentration 13.75%
Tuesday
Wednesday
Thursday
Friday
Saturday
Monday
Tuesday
Rep A _0
(Sunday
Rep B _0
Rep C _Q_
Rep D 0___
Concentration 27.5%
Tuesday Wednesday Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Rep A 0_
�
�L
Rep B 0
Rep C 0_
1_
v��
Rep D 0
L

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville 4th NPDES#: 0031836 Start Date: 4/18/23
End Date: 4/25/23
Concentration 55%
Tuesday Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Rep A 0U11
Rep B 0-41—
(7,
_
Rep C —0 _6�L—
Rep D 0
Concentration 77.5%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A _Q_
' _
——
Rep B _0
Rep C _0
Rep D 0_
Concentration 100%
Tuesday Wednesday Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Rep A 0_
Rep B 0
Rep C 0
L
v
Rep D 0
U

A4L=R1 TECH,F,11vC.
ENVIRONMENTAL LABORATORIES
Sa�f" AOwision o/ Water Tehno/ogy and Con,01, In,
FISH LARVAL SURVIVAL/GROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville 4th
NPDES #: 0031836
Date of Test: 4/18/23
Initial weights taken on:.. --2%23 by,_U,,�
Final weights taken on: - % 3 by:b,�
Blank Pan: Initial Welght; ulk Final Weight:9U2 on
Page: 1 of 2
Outfall:
Organism: Pimephales promelas
Difference: 610
CONIC
REP
PAN WT.
(mg)
PAN + ORG.
WT. (mg)
WT, OF ORG.
(mg)
# ORG.
MEAN
WT.IORG. (mg)
SURV %
C
03.4
B
-7r' ,�
�D ,3
�1
II
D
7ef.
�'C
g 3
u
C�� 53
13.75%
A
C ) /I z
o f
&�I
)
B
03,E
- I
C, 5
, -C IS5�
C
rrll
vH
ffa^
�. G�
'
D
,
.7
d t q
d, 6q t
lot)
A
B
l-
U, "),z
I oc
27.5%
03
D
9
�'1� 5
�� (I
l0
015cl
00

IWHR®TECfi, AUVC.
ENVIRONMENTAL LABORATORIES
A Elvis/on or Wafer 7,,Mnoloyy and Controls, Inc_
FISH LARVAL SURVIVAUGROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville 4th
NPDES #: 0031836
Date of Test: 4/18/23
Initial weights taken on: by: LA✓
Final weights taken on: — o2-X3 by: (,
Page: 2 of 2
Outfall:
Organism: Pimephales prome/as
CONC
REP
PAN WT.
(mg)
PAN + ORG.
WT. (mg)
WT. OF ORG.
(mg)
# ORG.
MEAN
WTJORG, (mg)
SURV %
55%
A
E09, 29
F/qv
6
Leo
B
C
.6
DD
«
C
la
77.5%
A
-7 q
M72
6463
0,660
B
C
4J l
D
,-7
0,5
O
A
o c,
I
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alLLL
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6 3 q

MERITECH, INC. (Lab # 027) Medtech Sample ID #; O \V -U
Bioassay Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(c)meritechlabs.com Web Site: www.meritechiabs.com
CLIENT INFORMATION
rC ee
Sample Site: a ' I `A k-�.j
Sample Type: ❑ Grab Composite # of containers:
Sampling Time: Start Date: `1 Start Time: __�133 AM PM
End Date: End Time: A PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample cooler oNnplerwy with Ice.
The sample must be < 6.00C upon receipt at Meritech"'
Collector'sName: Print: ISfzDI.S/,y,4,1 Signature:
TOXICITY TEST INFORMATION
Test Required: AChronic (7 days) Teat Organism: �IEA Cerlodaphnla dubla (water Flea) PG 661 F be k 5 5 m17
❑ Acute (24-48 hours) ❑ Plmephales promelas (fathead minnow)
❑ Mysldopsis behla (mysid shrimp)
IWC: %
Comments/Di l utlon (s):
*** Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday. ***
Relinquished by:k"���f Date: 4q
Received by: U -a-licl-MA
Relinquished by: Date: u H,
rv—
a-
Relinquished by:
Received by:
Relinquished by:
Received by:
Date:
Dale:
Date:
Date:
Time:
—/W 6 ?
Time:
_I_!� ni
Time:
ffo4 5
Time:
Time:
Time:
Time:
Time:
AM PM
AM
A PM
AM
AM PM
AM PM
AM PM
AM PM
Sample Temperature (°C):
Method of Shipment: ❑ UPS ❑Fed EX ❑ Meritech Pick-up ❑ Delivered ❑ Other
Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED
SAMPLE RECEIVING (Meritech Use Only)
Relinquished by: 17 �r r1 I ' n ) Q
Received by: t11"q J iyt/-1 Date: t( 46 2J Time: (' 0 AM CM
Sample Temperatures ('C): �I /! / / Sample Condition: �i � �4 ,I
®i WHITE = Laboratory copy YELLOW = Client copy -494�

MERITECH, INC. (Lab # 027) 10.6WchSample ID
Bioassay Sample Chain of Custody R-r i-Lo
v 642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(a),meritechlabs.com Web Site: www.meritechiabs.com
Client:
Contact Person:
Physical Address:
Mailing Address:
PO#:
NPDES#: NC (���l��'-}jt
Phone: I Q Ll -ca U 34
Pipe #: _e;) �_
City: Slater ZIp:4 B(� � 1 X
County: P E-mail: ��C)nnC� ( e*C4e \\\e mg ,oe-'1
Sample Site:
Sample Type:
Sampling Time:
Stan Date: '"1 I I —1 I a_"� Start Tlme: I�Q� PM
End Date: 41 ) �i� I a: End Time: AM PM
•"' Triple rinse sample container with sample before filling completely with NO AIR SPACE, Pack the sample cooler completely with ice.
' The sample must be a 6.00 C upon recolpt at Merltech"'" �/�',, � ////
Collector'sName: Print; /.7P1AtJ Drd,rnQy, Signature;1f -11, �C -
TOXICITYTESTINF
Teat Required: Chronic (7 days) Teat Organism: Cerladaphnla dubla (water flea) �jSI FU.1� J J o�0
❑ Acute (24.48 hours) � Pimephales promotes (fathead minnow)!5cjQca� SPizo A
❑ Mysldopals behla (mysid shrlmp) nl v„\ t I
IWC; % "* Friday Samples for Chronic Fathead test must be collected after 9:00 a.m, on Friday,
C om men telD I lutlo n (s): .
Relinquished by:
Received by:
Relinqulshed by:
Received by:
Method of Shipment: ❑ UPS
Dale:
Date:
Date:
Date:
Sample Temperature (°C):
El Fed EX ❑ Meritech Pick-up
Time: kO
PMTime:Tlme; AM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
❑ Delivered ❑ Other
"'• Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED'•"
SAMPLE RECEIVING (Meritech Use Only)
Relinquished by: / jonrliri
1p Received by: 'vy, M1 Dale: Time: 2f(Q AM 6M
Sample Temperatures (°C): ( . ( / [' ( / Sample Condition: lfe..
®� WHITE = Laboratory copy YELLOW = Client copy eta

w�
MERITECH, INC. (Lab # 027)
MsdtachSampleID#:
Bioassay Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reedComeritechlabs.com Web Site:
www.meritechlabs.com
Contact Person:
Physical Address:
Mailing Address:
PO#:
NPDES#: c�N�.LJ('9r 11 �--y �
Phone: 'i0 4' d •r cs
1 _ 1 Pipe #:
City:
—_<:C►5 �.,N es a State: 61? Zip: _a �
County: �/-reoAe)I E-mail: .fJi111�
Sample Site:
Sample Type: ❑ Grab XComposite # of containers: �' ^ V,A
Sampling Time: StartDate:Q�.,� Start Time:�`'�I1 PM
End Date: L%%o'Z) a 3 End Time;' a PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Peck the sample cooler completely with Ice.
Tha/s�_{pnpI must be a 6.0°C upon receipt at Merltech"'
Collector'sName: Print bi &I,reM"(- Signature:
TOXICITY TEST INFORMATION I
Test Required: XChronlc (7 days) Test Organism; 1 c Cerlodaphnla duble (water flea) �Q.'I � �a
❑ Acute (24.48 hours) �l Plmephales promotes (fathead minnow) Se .0r\A
❑ Mysldopsis behla (mysld shrimp)
IWC: 5 5 % ""' Friday Samples for Chronic Fathead test must be collected after 9:00 a.m, on Friday.
�S
Comments/Dllution(a): _ /.3.')�_ 7-f. J , 9E. 77 Z . 10 n
necelveu uy:
Relinquished by:
Received by:
Relinquished by:
Received by:
LC r • : u a •7�
Date:
Date:
Date:
Date:
Date:
Sample Temperature (°C):
Time:
l
V.17
PM
Time:
L037
AM
PM
Time:
AM PFA
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Method of Shipment: ❑ UPS ❑Fed EX ❑ Merilech Pick-up ❑ Delivered ❑ Other
"" Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED'"
SAMPLE RECEIVING (Merltech Use On
/��,
Relinquished by: 61 (Y fQn)`Ay-\ C
Received by: AIWN Date: 'f-�`�2�`�� Time: �',7 AM PkI
Sample Temperatures (°C): J! 1 t •./ 1- 3 / Sample Condition: I-
-pw� WHITE = Laboratory copy YELLOW = Client copy fir_

Title: 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Shapiro - Wilk's Test for Normality
----------------------------------------------------------------------------
D = 0.0460
W = 0.9649
Critical W = 0.8840 (alpha = 0.01 , N = 24)
W = 0.9160 (alpha = 0.05 , N = 24)
Data PASS normality test (alpha = 0.01). Continue analysis.

Title: 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Bartlett's Test for Homogeneity of Variance
----------------------------------------------------------------------------
Calculated B1 statistic = 5.3307 (p-value = 0.3769)
Data PASS B1 homogeneity test at 0.01 level. Continue analysis.
Critical B = 15.0863 (alpha = 0.01, df = 5)
- 11.0705 (alpha - 0.05, df = 5)

Title: 4th
File: 4thGrowth Transform: NO TRANSFORMATION
ANOVA Table
----------------------------------------------------------------------------
SOURCE
DF
SS
MS F
----------------------------------------------------------------------------
Between
5
0.0267
0.0053 2.0923
within (Error)
18
0.0460
0.0026
----------------------------------------------------------------------------
Total
23
0.0727
----------------------------------------------------------------------------
(p-value = 0.1136)
Critical F =
4.2479 (alpha =
0.01, df = 5,18)
=
2.7729 (alpha =
0.05, df = 5,18)
Since F < Critical F FAIL TO REJECT Ho: All equal (alpha = 0.05)

Title: 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 1 OF 2
Ho:Control<Treatment
----------------------------------------------------------------------------
TRANSFORMED
MEAN CALCULATED IN
SIG
GROUP
IDENTIFICATION
MEAN
ORIGINAL UNITS
------------------
T STAT 0.05
------
-----
I
--------------------
Control
-----------
0.5703
0.5703
2
13.75
0.6185
0.6185
-1.3505
3
27.5
0.5520
0.5520
0.5108
4
55
0.6405
0.6405
-1.9663
5
77.5
0.6180
0.6180
-1.3365
6
100
0.6375
0.6375
-1.8823
----------------------------------------------------------------------------
Dunnett critical value = 2.4100 (1 Tailed,
alpha = 0.05, df =
5,18)
Title: 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 2
OF 2 Ho:Control<Treatment
----------------------------------------------------------------------------
NUM OF
MIN SIG DIFF
Is OF
DIFFERENCE
GROUP
IDENTIFICATION
REPS
-------
(IN ORIG. UNITS)
----------------
CONTROL
-------
FROM CONTROL
------------
-----
1
--------------------
Control
4
2
13.75
4
0.0861
15.1
-0.0482
3
27.5
4
0.0861
15.1
0.0183
4
55
4
0.0861
15.1
-0.0702
5
77.5
4
0.0861
15.1
-0.0477
6
----------------------------------------------------------------------------
100
4
0.0861
15.1
-0.0673

• Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:12/16/2022
Facility: Statesville -Fourth Creek
Signature of Laboratory Supervisor
NPDES # NC00 31836
MAIL ORIGINAL TO: water Sciences Section
Aquatic Toxicology Branch
Division of water Resources
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Pipe #: 001
Test Initiation Daterrime 12/6/2022 3:13 PM Avg Wt/Surv. Control 0.563
% Eff. Repl. 1 2 3 4
Control Surviving #
Original #
Wt/original (mg)
9
10
10
10
10
10
10
10
0.585
0.557
1 0.437
0.608
F-1-3-75--1 Surviving #
% Survival 100.0
10
10
10
10
Original #
10
10
10
10
0.457
% Survival 97.5
Avg Wt (mg) 0.547 Hatch Date: 12/5/22
Hatch Time: 4:00-5:00 pm
27.5 Surviving#
%Survival 100.0
10
10
10
10
Original #
High Concentration
pH (SU) InitlFin
DO (mg/L) Init/Fin
Temp (C) In!UFin
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (mg/L)
Alkalinity (mg/L)
Conductivity (umhos/cm)
Chlorine(mg/L)
Temp. at Receipt (°C)
10
10
10
10
10
10
10
10
10
10
10
0.586
0.508
0.525
0.486
10
ji
10
10
10
10
10
10
10
0.465
0.522
0.444
0.456
10
10
10
10
10
10
10
10
0.571
0.454
0.397
0.405
7.64 / 7.53
8.08
/ 7.43
7.74
/ 7.61
7.88
17.89
7.98 / 7.88
7.88 / 7.80
7.80
/ 7.51
7.91 / 6.73
7.88
/ 7.12
7.71
/ 7.34
7.85
/ 7.57
7.83 / 7.58
7.89 / 7.43
7.88
17.27
25.8 / 24.2
24.3
/ 24.8
24.8
/ 24.1
24.4
/ 24.5
24.3 / 24.4
24.2 / 24.1
24.2
/ 24.7
0 1 2 3 4 5 6
7.31 / 7.72
7.56
/ 7.75
7.45 / 7.85
7.29
17.99
7.90 / 7.97
7.78 17.84
7.67
/ 7.82
8.10 / 7.82
8.14
/ 6.92
8.07 / 7.27
8.13
/ 7.49
8.09 / 7.56
7.76 /
7.55
7.95
/ 7.48
25.9 / 24.7
25.0
/ 25.0
25.4 / 24.7
25.2
124.6
25.8 / 24.3
25.3 124.2
25.9
/ 24.4
1 2 3
12/5/2022
12/7/2022
12/8/2022
24.1
23.7
23.9
46
48
48
47
53
57
352
406
393
<0.1
<0.1
<0.1
1.5
1.6
2.1
Dilution H2O Batch # 80 81 82
Hardness (mg/L) 44 42 48
Alkalinity (mglL) 31 33 33
Conductivity (umhos/cm) 172 160 173
Test Organisms
G Cultured In -House
1T Outside Supplier
Survival
Growth Overall Result
Normal
)-I
ri, ChV >100
Hour. Var.
rI
rl-
NOEC
100
100
LOEC
>100
>100
ChV
>100
>100
Method
Steel's
Dunnett's
State
Survival
Growth
Conc.
Critical Calculated
Critical Calculated
13.75
10 20
10 20
10 20
2.41 1.0953
2.41 1.5374
2.41 0.5411
27.5
55
77.5
10 20
10 20
2.41 1.9795
2.41 2.3754
100

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.: MER/TECHo, //VC_
ENVIRONMENTAL LABORATORIES
' A OiVlslon of W.a fer Technology and Contra/s, /nc.
Chemical and Physical Determinations
Client: Statesville 4th NPDES#: 0031836 Start Date: 12/6/22
End Date: 12/13/22
Dav
Concentration: control
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
Soft Synthetic Feshwater
Batch N :
-C(—)
pH: Initial
l.ULA
(S.QtI
7, L�
�.��
�,•���
�_�jC
Final
79
7, 3
1, 61
7,
1. J ib
Z,(+G
7
D.O.: Initial
]. I
7,88
7
-7,85
7, B
Final
7'
1,r2
7, 3 i
7, s 7
7.h
2
Temp.: Initial
K,')
24 Z
�2k
Final
i
d'1 •
tl
21(r
1
a Y/
Conductivity: Initial
(D
Final
f .
8Cp
�r
Residual Chlorine:
GU ,t
L 0. t
L 0 ,1
LO 1
L 0
Hardness:
(
(/
Alkalinity:
7)
—
)
Dav
Concentration: 13.75%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
ln()
?,'1
7 77
i.80
7.'' '7-T
`
%.
Final
�� 65
7,
7. 7
7 l)
1.
n�
%
D.O.: Initial
j.�
7,90
", e1
7,9-�—
-1. -7
�r
Final
TOO
6,6
�•�
7,
Tr/q,t
7,, "
Temp.: Initial
j .
t(t
l ,
)N,
� 4r
ZT(S
7
Final
U
Conductivity: Initial
t Ci q,
ILL—:,20
Final
(�';
1 rG
�lJ, �7
r t
Residual Chlorine:
G 0, 1
G G.
G0, j
L 6, i
L d, t
Z=,,, 1
Lo,
Dav
Concentration: 27.5%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
' '3
17�
MY
% 9, S
Final
1 7 Z
?,
-7 r7't
D.O.: Initial
7.6I
7,90
7, W(
1.e� ]
7,
Final
7,02
G6
111
7.S '5—
5,
Temp.: Initial
AX
7�1 )
,�-?
2Y,J
Cj
Final
a 7
)15—
a
� , �
Z %
� �1 LD
Conductivity: Initial
A;)-r1
d i i
)
t '3,
23
Final
a
'���
I
Residual Chlorine:
G6 ,1
LG, j

A
Client: Statesville 4th
MISR/TECH,. /NC
EN VIRO NMENTAL LABb��TbRIBS
Chemical and Physical Determinations
NPDES#: 0031836 StartDate: 12/6/22
End Date: 12/13/22
r)AV
Page 2 of 2
Concentration: 55%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
PH: Initial
I. 4 �1
1, 65
.q
�
7,77
Final
W?,3
7,6,
7r7�
7. �
D.O.: Initial
9 iu D
`7 73
7,F J
Final
'7,1,
(�
1t2`7
'75`1
71Y7
ICJ
Temp.: Initial
�cC
Final
''�.
zz
� !
2t{
Conductivity: Initial
alp
? Iq.
30
a q c
Final
g 1
Jam) 1
0
-30
3o I
c� C
3v
Residual Chlorine:
L d , k
G 0 i
Go (
L O. (
/ G , (
DAV
Concentration: 77.5%
0-1
1-2
2-3
3-4
1 4-5
5-6
6-7
Remarks
pH: Initial
v
7 J�7
'((
lr'16
2, "
-7,1 7
7171
Final
7,72.
7i 76
17,'Zl
%°
Cl(P
11M
-77
D.O.: Initial
9,.
(; :�
,l'
X'
7, `
7 V, 1
7 r
Final
1
7,22
7 t'3.5
7(�7
Temp.: Initial
Final
}`l
r�
H
2iY,7
Conductivity: Initial
3 Do
Ct
3L .i
0-
33 A
-33
33
Final
-�
0
3 �-?
Residual Chlorine:
G-O . t
L G 1
U, l
`G . I
LC 4
1 v, I
Da
Concentration: 100%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
1, 3 i
1,5E
% yc)
1,27
`1'7cb
-1 r ?
Final
7,75
7, J6
7 `
-7AIT
.�f
21 '
D.O.: Initial
g, I U
, I L(
h%
t 13
R-, �
7 -!l
Final
1tAZ
,91
.27
7. `
--7. 1Z
ZtS.i
Temp.: Initial
0
.a `. '
�) • �
z
3 )
� ,g
FinalZConductivity:
Initial
y
��
�0
ZC>
Final
S 2
j 7�
)
,_ 1U0Residual
Chlorine:
L 6 , `
L 0.1
Go , l
0 i
L G7
Hardness:
y G
`F 7
F
Alkalinity:
-I
I%

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville 4th NPDES#: 0031836 Start Date: 12/6/22
End Date: 12/13/22
Concentration Control
Tuesday Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Rep A 0
7
Rep B 0
Rep C 0
Rep D 0
Concentration 13.75%
Tuesday Wednesday
Thursday
Friday Saturday
Sunday
Monday
Tuesday
Rep A 0_
Rep B 0
T
l/
Rep C 0
Rep D 0
Concentration 27.5%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0 �
✓ _
Rep B 0(/
Rep C 0—
Rep D 0

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville 4th NPDES#: 0031836 Start Date: 12/6/22
End Date: 12/13/22
Concentration 55%
Tuesday Wednesday Thursday Friday Saturday (Sunday Monday Tuesday
Rep 0
Rep B 0_
Rep C 0__
Rep D 0
Concentration 77.5%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep 0 --77 U_ n
Rep B 0
Rep C 0�——
-
Rep D 0_
Concentration 100%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep 0
Rep B 0
Rep C 0__
Rep D 0
_ o %

/1/lER/TECh/� /NC_
` ENVIRONMENTAL LABORATORIES
n o,erz;z,.o Of Water r zn�o,ogr o,r#Cuu[rolz, In -
FISH LARVAL SURVIVAL/GROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville 4th
NPDES #: 0031836
Date of Test: 12/6/22
Initial weights taken on: �26-by:
Final weights taken on: by: /.
Blank Pan: Initial Weight: (,+ 31 Final Weight: �y
Page: 1 of 2
Outfall:
Organism: Pimephales promelas
Difference: (-�), D
PAN WT.
PAN + ORG.
WT. OF ORG.
MEAN
CONC
REP
(mg)
WT. (mg)
(mg)
# ORG.
WT./ORG. (mg)
SURV %
A
o
Lm
B
c
v
c�"��
Ur
D
i��
30, ✓V
U
of 6
Mn
A
N, 3v
?36,
q, S
c�
53
�7
13.75%
jrl-
D
A
1? e J�
4lr
1 6
/ a
01 (if
(JC/
7 q �
�Ijl
27.5%
c
83� 0_ "
�'�(3,
�
I r
5
D
Z51, Q
`(17c
v
0,u
1c�c�

MAER/TECH'r [/VC_
Ae—
ENVIRONMENTAL LABORATORIES
A OfyW.11 of W11, r hnaIooy pnd Fonfrnfs, Inc.
FISH LARVAL SURVIVAL/GROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville 4th
NPDES #: 0031836
Date of Test: 12/6/22
Initial weights taken on: by: G✓
Final weights taken on: I2—I L � by't,,�
Page: 2 of 2
Outfall:
Organism: Pimephales promelas
CONC
REP
PAN WT.
(mg)
PAN + ORG.
WT. (mg)
WT. OF ORG.
(mg)
# ORG.
MEAN
WT.IORG. (mg)
SURV %
A
DII��
�s�o7� ��'
�, �
>
C 6KS 7
c
D
US
7� �
(
LlYll,
O0
ql
Gr & /
_��.B77.5
7F66-
/o
I
uI
omqq
lov
DG�,
S
�Z71 qQ
Lle
o,'
1
A
-7
/ q(�. a,5
?- , 1
, -71
/
J'J I
OZ
B
J7� (Y' (C
F031
0/ 5
l(T)
100%
3K
10
D
-7g7v I3
fbQ
, v,5
v
D, qo6
Io o

MERITECH, INC. (Lab # 027) MadtechSample ID#: 1�✓( �� ���
�i Bloassav Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed()merltechlabs.com Web Site: w .merftechlabs.com
Client: 7 1 _-) C� -e. ' PO#:
Contact Person: W NPDES#: N000'_ Is7� k,
Physical Address: ? .-.corm LA. Phone: 1OLI'e�761-3 -LS
Mailing Address: _ ,,LL1_ Pipe #: C1 I
City: `'3-1(Xi L "s0 I I C' Slate: �. Zip: �. 8G; Y' 1
County: =rede,l I E-mail: Y)�Chf)S6N&G_ cXrd
PSV; 11f
� 11 �/' /J SAMPLE INFORMATION L
Sample Site: ""'1 .1 �i,`� L-)ki-S-F)u-e(1'l'
Sample Type: ❑ Grab Composite # of containers: -�
rr %
Sampling Time: Start Date: /))vt 1 J / Aa Start Time:I j AMC PM
End Date: l�l (p J� -. End Time: AM PM
'•* Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample cooler completely with ice.
The sample must be < 6.0°C upon receipt at Meritech—
Collector's Name: Print: /�%(L�%,� �_ ,,{ irxv, Signature:
`,� TOXICITY TEST INFORMATION
Test Required: �1 Chronic (7 days) Test Organism: X Ceriodaphnla dubla (water flea) (j�n,I ,, 1 F- :4, 1 r.� J p/�
/❑ Acute (24-48 hours) 0 Pimephales promelas (fathead minnow)tq('�
❑ Mysidopsis bahla (mysid shrimp)
IWC: �� % *** Friday)) Samples for ChronicFatheadtest must be collected after 9:00 a.m. on Friday. ***
Comments/Dilution(s): Y)�l 7"1 C[1a, (_l; rGt)�_,-J . 10d
SHIPPING INFORMATION
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Sample Temperature (°C):
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*** Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED *`*
//V SAMPLE RECEIVING (Meritech Use Only)
Relinquished by: 4 l ! rl lc cn
Received by: U'�' Date: Time: 1 f; AM Q�M
Sample Temperatures (°C): 1 , / Sample Condition:
namommmmilpip- WHITE = Laboratory copy YELLOW = Client copy �®

MERITECH, INC. (Lab # 027) Madtech Sample ID#: I JO�n
�i Bioassay Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(cDmeritechlabs.com Web Site: vvww.meritechlabs.com
CLIENT INFORMATION
Client: ] ..4j -QL' > PO#:
Contact Person: CIU NPDES#: NCO 0) 1 �>
Physical Address: iCY �(�� I I T Y r lrYl C Phone: '%01-13 8 '1 3 c7
Mailing Address: ` I.yL ) ) I I I Pipe #: 1
City: �J�'�, I e.,b ij t I)'I". State: n.) Zip:
County: c-e. d e i E-mail: Iay f; kYl `Sll(lO, Sint-I-eS)/, I If )1C1 , ne
Sample Site:
Sample Type: ❑ Grab N, Composite # of containers:
Sampling Time: Start Date: ) I �'' Start Time:_ 8AM
PM
End Date: ,� End Time: �PM
"** Triple rinse sample container with sample be/ore filling completely with NO AIR SPACE. Pack the sample cooler completely with ice.
The sample must be < 6.0° C upon receipt at Meritech*'*
Collector's Name: Print: / � ✓ D/5111AM Signature:
TOXICITY TEST INFORMATION
Test Required: Chronic (7 days) Test Organism: X Ceriodaphnia dubia (water Flea)
❑ Acute (24-48 hours) KPimephales promelas (fathead minnow
❑ Mysidopsis bahla (mysid shrimp) IYl (A)'I`; Q6()C%
wic. 5-5
- % *** Friday Samples for Chronic Fathead test must be collected after 9:00 am. on Friday.
** ***
Comments/Dilution(s): �' f (1 j I +) COVlC' ab- � '4A b 5;J �1 S, 0)
SHIPPING INFORMATION
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Date:
Time:
?
J�Z
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(a
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Time:
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Sample Temperature (°C):
Method of Shipment:
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❑ Delivered
❑ Other
*** Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED ***
SAMPLE RECEIVING (Meritech Use Only)
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/ I
Sample Temperatures(°C): r/ !_/ / Sample Condition: Lffi'J
®lp- WHITE = Laboratory copy YELLOW = Client copy

! MERITECH, INC. (Lab # 027) Meri(ech Sample ID #:
\. Bioassay Sample Chain of Custody
r 642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(rDmeritechlabs com Web Site: www.meritechiabs.com
Client:
Contact Person:
Physical Address:
Mailing Address:
City:
County:
Sample Site: ❑ \��
Sample Type: ❑ Grab
CLIENT INFORMATION
State: / U t_„ Zip:
E-mail:
# of containers:
Sampling Time: Start Date: Start Time: • lJ CAM*
j J.�,a '
End Date: / ' End Time: g-0,C) AM
PO#: n
NPDES#: NCIr��
Phone: 704- Pf ;3`A3S
Pipe #: 0 `1
PM
"* Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack tire sample cooler completely with ice.
The sample must be < 6.0 °C upon receipt at Merifech**'
Collector's Name: Print: —Str{/t,rp 3ahn.son Signature:
t' C4
TOXICITY TEST INFORMATION
Test Required: Xchronic (7 days) Test Organism: Certodaphn/a dubla (water flea) i• Li Ste' �—t;{ r I :S; /k
ElAcute (24-48 hours) [ Pill hales promelas (fathead minnow)
,r���•n�t `,pC'_C'�C
r. ElMysldopsls battle (mysid shrimp) ry) C c,n
IWC; D_'�) % —* Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday. ***
comments/Dilution(s):
4 ° )1j'\ 0 I i l: iJ (')('_. • i 11- > .
1
/ ` , r )L-
SHIPPING INFORMATI N
��fi%
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Sample Temperature (°C):
Method of Shipment: ❑ UPS ❑Fed EX ❑ Meritech Pick-up ❑ Delivered ❑ Other
** Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED'"'
' / c SAMPLE RECEIVING (Merltech Use Only)
Relinquished by: Ity('CI( 7)(n)�Ly;e I( (,
Received by: IGq, hlf� Date: I - -�% Time: ( AM Rrly1
Sample Temperatures (°C): � , � / , /� / ��� � y / Sample Condition: �-
Cr
—om- WHITE = Laboratory copy YELLOW = Client copy �®

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Shapiro - Wilkes Test for Normality
----------------------------------------------------------------------------
D = 0.0517
W = 0.9855
Critical W = 0.8840 (alpha = 0.01 , N = 24)
W = 0.9160 (alpha = 0.05 , N = 24)
Data PASS normality test (alpha = 0.01). Continue analysis.

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Bartlett's Test for Homogeneity of Variance
----------------------------------------------------------------------------
Calculated B1 statistic = 5.5151 (p-value = 0.3563)
Data PASS B1 homogeneity test at 0.01 level. Continue analysis.
Critical B = 15.0863 (alpha = 0.01, df = 5)
= 11.0705 (alpha = 0.05, df = 5)

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
ANOVA Table
----------------------------------------------------------------------------
SOURCE
DF
SS
MS F
----------------------------------------------------------------------------
Between
5
0.0228
0.0046 1.5880
Within (Error)
18
0.0517
0.0029
----------------------------------------------------------------------------
Total
23
0.0745
-----------------------
(p-value = 0.2138)
Critical F =
4.2479
(alpha =
0.01, df =
5,18)
=
2.7729
(alpha =
0.05, df =
5,18)
Since F < Critical
F
FAIL TO
REJECT Ho:
All equal
(alpha = 0.05)

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 1 OF 2
Ho:Control<Treatment
----------------------------------------------------------------------------
TRANSFORMED
MEAN CALCULATED IN
SIG
GROUP
IDENTIFICATION
MEAN
ORIGINAL UNITS
T STAT 0.05
-----
1
--------------------
Control
-----------
0.5468
------------------
0.5468
------ ---
2
13.75
0.5053
0.5053
1.0953
3
27.5
0.4885
0.4885
1.5374
4
55
0.5262
0.5262
0.5411
5
77.5
0.4718
0.4718
1.9795
6
100
0.4568
0.4568
2.3754
----------------------------------------------------------------------------
Dunnett critical value = 2.4100 (1 Tailed,
alpha = 0.05, df =
5,18)
Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 2
OF 2 Ho:Control<Treatment
----------------------------------------------------------------------------
NUM OF
MIN SIG DIFF
% OF
DIFFERENCE
GROUP
-----
IDENTIFICATION
--------------------
REPS
-------
(IN ORIG. UNITS)
CONTROL
FROM CONTROL
1
Control
4
----------------
-------
------------
2
13.75
4
0.0913
16.7
0.0415
3
27.5
4
0.0913
16.7
0.0583
4
55
4
0.0913
16.7
0.0205
5
77.5
4
0.0913
16.7
0.0750
6
----------------------------------------------------------------------------
100
4
0.0913
16.7
0.0900

Title: Statesville 4th
File: 4thSurvival Transform: NO TRANSFORMATION
Shapiro - Wilk's Test for Normality
----------------------------------------------------------------------------
D = 0.0075
W = 0.4651
Critical W = 0.8840 (alpha = 0.01 , N = 24)
W = 0.9160 (alpha = 0.05 , N = 24)
Data FAIL normality test (alpha = 0.01). Try another transformation.
Warning - The first three homogeneity tests are sensitive to non -normality
and should not be performed with this data as is.

Title: Statesville 4th
File: 4thSurvival Transform: NO TRANSFORMATION
Hartley's Test for Homogeneity of Variance
Bartlett's Test for Homogeneity of Variance
----------------------------------------------------------------------------
These two tests can not be performed because at least one group has
zero variance.
Data FAIL to meet homogeneity of variance assumption.
Additional transformations are useless.

Title: Statesville 4th
File: 4thSurvival Transform: NO TRANSFORMATION
Steel's Many -One
Rank Test
- Ho:
Control<Treatment
----------------------------------------------------------------------------
MEAN IN
RANK
CRIT.
SIG
GROUP
IDENTIFICATION
ORIGINAL UNITS
SUM
VALUE
DF 0.05
-------------------------
1
Control
-----------
0.9750
-------
------
----- ---
2
13.75
1.0000
20.00
10.00
4.00
3
27.5
1.0000
20.00
10.00
4.00
4
55
1.0000
20.00
10.00
4.00
5
77.5
1.0000
20.00
10.00
4.00
6
100
1.0000
20.00
10.00
4.00
----------------------------------------------------------------------------
Critical
values are 1 tailed ( k = 5 )

Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date: 11/23/2022
Test Initiation Daterfime
% i Repl.
Control Surviving #
Original #
Wt/original (mg)
13.75 Surviving #
Original #
Wt/original (mg)
27.5 Surviving #
Original #
Wt/original (mg)
55 Surviving #
Original #
Wt/original (mg)
77.5 Surviving #
Original #
Wt/original (mg)
100 Surviving #
Original #
Wt/original (mg)
der Quality Data
Control
pH (SU) Inil/Fin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
High Concentration
pH (SU) Init/Fin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (mg/L)
Alkalinity (mg/L)
Conductivity (umhos/cm)
Chlorine(mg/L)
Temp. at Receipt (°C)
MAIL ORIGINAL TO: Water Sciences Section
Aquatic Toxicology Branch
Division of Water Resources
1621 Mail Service Center
Raleigh, N.C. 27699-1621
11/15/2022 1:40 PM
1 2 3 4
Avg Wt/Surv. Control 0.882
110110
101101
10
10
10
10
0.764
1 0.839
1 0.964
1 0.959
10
1 10
10
10
10
10
10
10
0.824
1 0.761
1 0.920
1 0.870
10
1 10
10
10
10
10
10
10
0.655
0.733
0.969
0.849
10
1 10
10
10
10
1 10
1 10
10
0.704
1 0.824
1 0.879
1 0.829
10
10
10
10
10
10
10
10
0.818
1 0.812
1 0.717
1 0.880
10
10
9
10
10
10
10
10
0.774
1 0.747
1 0.835
0.687
% Survival 100.0
Avg Wt (mg) 0.882
% Survival 100.0
Avg Wt (mg) 0.844
% Survival 100.0
Avg Wt (mg) 0.802
% Survival 100.0
Avg Wt (mg) 0.809
7-1
% Survival 100.0
Avg Wt(mg) 0.807
% Survival 97.5
Avg Wt (mg) 1 0.761
Day
0 1 2 3 4 5 6
6.82
/ 7.55
7.74 / 7.33
7.57
/ 7.63
17.73 / 7.80
7.94
/ 7.65
7.86
/ 7.41
17.55 / 7.38
7.94
/ 7.42
1 7.93 / 7.08
17.91
/ 7.69
18.09 / 7.63
17.91
/ 7.61
If 8.15
/ 7.55
18.25 / 6.65
24.9
/ 24.8
125.3 / 24.0
125.1
/ 24.5
125.1 / 24.2
124.5
/ 24.4
124.6
/ 24.5
124.2 / 24.5
0 1 2 3 4 5 6
7.26
/ 7.56
17.41
/ 7.43
6.97 / 7.60
17.18
/ 7.63
7.51
/ 7.49
7.51
/ 7.42
17.14 / 7.28
8.38
/ 7.40
7.91
/ 6.84
8.39 / 7.76
8.13
/ 7.75
8.06
/ 7.64
8.17
/ 7.72
8.47 / 6.69
25.3
/ 25.2
125.9 / 25.2
125.6 / 24.0
125.9
/ 24.0
24.6
/ 24.1
125.2
/ 24.7
125.1 / 24.4
1 2 3
11/14/2022
11/16/2022
11/17/2022
24.0
24.0
24.0
52
48
52
44
32
29
372
388
386
<0.1
<0.1
<0.1
2.1
1 2.6 1
1.2
Dilution H2O Batch # 77 U717�1Hardness (mg/L) 44 Alkalinity (mg/L) 34 Conductivity (umhos/cm) 169
Test Organisms
C Cultured In -House
Outside Supplier
Hatch Date: 11/14/22
Hatch Time: 4:00-5:00 pm
Survival
Growth Overall Result
Normal
ri
1171 ChV >100
Hom.Var.
ri
Pi
NOEC
100
100
LOEC
>100
>too
ChV
>100
>100
Method
Steel's
Dunnelt's
Slats
Cons.
13.75
Survival
Critical Calculated
10 18
10 18
10 18
10 18
10 16
Growth
Critical Calculated
2.41 0.6052
27.5
2.41 1.2825
55
2.41 1.1623
2.41 1.1983
77.5
100
2.41 1.9358

MEM ECHO /NC_
ENVIRONMENTAL LABORATORIES
gy A Olvls/on of Water Technology and Controls, Inc.
Chemical and Physical Determinations
Client: Statesville4th NPDFS#: 0031836 StartDate: 11/15/22
End Date: 11/22/22
Dav
Concentration: control
0-1
1-2
1 2-3
3-4
4-5
5-6
6-7
Remarks
Soft Synthetic Feshwater
Balch # :
7
/
�-7
7
'-7
I
7
I
pH: Initial
-77 tf
7[. 7
-7:7 3
1; 55
Final
17,b3
7
lv5
�. f
1,3G
D.O.: Initial
1, 1
Final
7. '
7.08
7, 0
'71'?
! _
Temp.: Initial
Final
2y,-
7 tf LGl
for cJ
�, 4
7
v
Conductivity: Initial
/ -71
1 S-�
I'a O
1
I (v -2-
Final
� 5
/ a� I
)
7'
Ifl
Residual Chlorine:
z-
L
Z-.o,
Hardness:
'
Alkalinity:
- -
-- -
Dav
Concentration: 13.75%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
-
?J 0
%
7, Li
?
Final
bc,
l,) F
1; (I
% ')
�.
7, 4 3
—1 3 l
D.C.: Initial
7 �N
'� t(�
'O
Q'3
7 't
, . I �
2%
Final
7, 50
G,( 2,
7,70
7
T I a,
i,`F J
Temp.: Initial
�� 7
�7,
',nKl ��
�•N
1
Final
Conductivity: Initial
IC"
I Gi t-(
30 t
Final
5
67
t r)
.-
Residual Chlorine:
%, o , l
1- ; , l
t
l—o.
Dav
Concentration: 27.5%
0-1
1//-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
-7.
-7,
7,E2
Final
7r5ii
7,VO
7,5�
D.O.: Initials
�'
7, 6'3
Final
Temp.: Initial
�j )
a -Il
Final
Conductivity: Initial
d ti
Final
3 J-
o ��)
7 `1'
A, l
,
Residual Chlorine:
D.�
L p
-r t
% o

MER/TECH� /N4C7_
qONVIRO NMENTAL LAB6R CYORIES .c
/v[�/s.n ea 4.fsi oc ..niu Uv +n oni�
Chemical and Physical Determinations
Client: Statesville4th NPDES#: 0031836 StartDate: 11/15/22
End Date: 11/22/22
Day
Page 2 of 2
Concentration: 55%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
PH: Initial
tTT1
h 7
7
`
1.
7: 7
Final
7, (ti C
7, 5
7, E u
%
`1.5 ,�
7 `f
-�
D.O.: Initial
Q . I I
`'. 3
Final
7r, 6
.9 I
7,1Oj
7, 6,r1
l . 1
157
—).1
Temp.: Initial
� � C
✓
o2�Jl S
�G
�t t
Z �. R
- v
Fatal
FYI. O
l�
"'4
Conductivity: Initial
A, 1
-1110
ZIj
Fy
Final
�6, `
Residual Chlorine: I
ZZ O (
U I
L '0,t
l ().
z.,
: , •.
Dav
Concentration: 77.5%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
7.. )0
% O ,
7, L`
%.S �
�.
7, 2'
Final
7, `i a
7,y
1, bG
g
7 (`!,
D.O.: Initial
0 -)
u t)
Ll_'
Final
-7. �l v
..1
7
) . ):
7 % J-
7" ) Z
-1 (.)
Temp.: Initial
s,
`"
�5,
��J•-
,� I ?
, ,,,c,
r (,
Final
Conductivity: Initial
3a6
Final
Residual Chlorine:
Da
Concentration: 100%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
-71(e
7,Y)
0, G
7, to
Final
0
7
9
7, f2
I JAL
D.O.: Initial
g, >r
`(7
Final
7.4C
%. y`
Temp.: Initial
�,:� c
�G �'
kt
5•
Final
Conductivity: Initial
�j7�
=',(r�l
'Jq
3Q,?
,S
Final
-21,11
?)�71
3rl�l
�i 9q
3r"1`V,
WO
-7
Residual Chlorine:
I
=-r 1
O, l
Hardness:
;2
t
Z
Alkalinity: 1

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville 4th NPDES#: 0031836 Start Date: 11/15/22
End Date: 11/22/22
Concentration Control
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A
0
U
Rep B
0
;
n
Rep C
0
_
e,
Rep D
0
U
Concentration
13.75%
Tuesday
Wednesday Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Rep A
0
Rep B
0
Rep C
0
C
lJ
Rep D
0
Concentration
27.5%
Tuesday
Wednesday Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Rep A
0
7-
�1
Rep B
0
Rep C
0
Rep D
0
_
,
U

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville 4th NPDES#: 0031836 Start Date: 11/15/22
End Date: 11/22/22
Concentration 55%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0
Rep B 0
Rep C 0
Rep D 0
Concentration 77.5%
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Rep A 0
�
1
Rep B 0_ CJ
Rep C 0_
pD
0
Re
Concentration 100%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0 _� o
Rep B 0
Rep C 0
Rep D 0

MERITEC"'01 /Pic.
ENVIRONMENTAL LABORATORIES
A niW— pf Wt., �,,a m,
FISH LARVAL SURVIVAL/GROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville 4th.
NPDES#: 0031836
Date ofTest: 11/15/22
Initial weights taken on:
Final weights taken on: by:
Blank Pan: Initial Weight-,", Final Weight:
Page: 1 of 2
Outfall:
Organism: Pimephales promelas
Difference: (":), r)
PAN WT.
PAN + ORG.
WT. OF ORG.
MEAN
CONC
REP
(mg)
WT. (mg)
(Mg)
# ORG.
WTJORG. (mg)
SURV %
A
k'v
-6
B
fu,
0
C
D
A
B
7,
ew")
13.75%
C
D
C 7,
'F1
C, K J
loo
A
B
7 3,-)
27.5%
C
'17
1
Icy,
-79
II

Av t ENVIRONMENTAL. LABORATORIES
'imaw A!]WWOn of Water Technology and Con[mis, Inc_
FISH LARVAL SURVIVAL/GROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville 4th
NPDES #: 0031836
Date of Test: 11/15/22
Initial weights taken on: /U : = ;,- by: —!
Final weights taken on: / / - �2--�.: kby: L
Page: 2 of 2
Outfall:
Organism: Pimephales promelas
CONC
REP
PAN WT.
(mg)
PAN + ORG.
WT. (mg)
WT. OF ORG.
(mg)
# ORG.
MEAN
WTJORG. (mg)
SURV %
i
55%
B
TD�",
77.50%
71.7
�'i
o
A
i I
N7 �? j 7Y
7 711
') (
B
$67 75
100%
C
0 q, 3-3L71

MERITECH, INC. (Lab # 027) MeritechsamplelDtl I" 1211— SL
Bioassay Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(a)meritechlabs.com Web Site: www.meritechlabs.com
Sample Site:
Sample Type: ❑ Grab L]it Composite
SAMPLE INFORMATION
# of containers:
Sampling Time: StartDate: ! I� Start Time:__�_O AAM�MMM� PM
End Date: End Time: � U PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample cooler com y with ice.
The sample must be < 6.0'C upon receipt at Meritech'**
Collector's Name: Print: 8216r' I>fSH�oj Signature:
TOXICITY TEST INFORMATION
Test Required: °Chronic (7 days) Test Organism: Ceriodaphnia dubia (water flea) Pci5S IF41 156%
❑ Acute (24-48 hours) Pimephales promelas (fathead minnow) Sep onC\ spe 0.1e,
❑ Mysldopsisbahla (mysidshrimp) VnL)-k-'1• I? Anc-
IWC: 55 % *** Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday. ***
Comments/Dllutlon(s):
J"k_a�7t•1 C_OrlVI. 13.Tn). g
--)In,
SHIPPING INFORMATION
Relinquished by: ('V�
Data: { I ��'
Time:
AM
M
Received by: \'
•v Date: /f�l�
,Z Z
Time:
rrO 4 r
! d
PM
Relinquished by: �*ZV_e_L.C.:9
Date: /%— jti'
2 Z
Time:
AM
)
Received by:
Date:
Time:
AM
PM
Relinquished by:
Date:
Time:
AM
PM
Received by:
Date:
Time:
AM
PM
Relinquished by:
Date:
Time:
AM
PM
Received by:
Date:
Time:
AM
PM
Sample Temperature (°C):
Method of Shipment:
❑ UPS ❑Fed EX ❑ Meritech Pick-up
❑ Delivered
❑ Other
— Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED **'
SAMPLE RECEIVING (Meritech Use Only)
Relinquished by:
Received by: jp­') pAdi. Date: Time: AM / �i� �
�1 : yrv1
Sample Temperatures (°C): 1� I I 2+ I / / Sample Condition: •ti� °�{
WHITE = Laboratory copy YELLOW = Client copy

^t
MERITECH, INC. (Lab # 027) Meritech Sample ID It:
II� (� `��
Bloassay Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mlke.reedtalmeritechlabs.corn Web Site: www.merltechlabs.com
CLIENT INFORMATION
Client: 'Q �c Poll:
Contact Person: NPDES#: NC On I R 3L,
Physical Address: Phone: W L) 8 V A43g
Mailing Address: LP, Q,`dcX III Pipe#:(f) I_
City:-l}OSI� 1 k1'e. State:_ County: �J-1� �c� E-mail:
Sample Site: 1 ' ' C .t ` _& LAJ
Sample Type: ElGrab r4 Composite
Sampling Time: Start Date: I I I &/A ;:�
End Dale: �I /)1-i a-0\
# of containers: O
ff� T
Start Time: V AM PM
End Time: be AM PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample co lefcompletel with ice.
��rr The sample must be < 6.0°C upon receipt at Meritech***
Collector's Name: Print: (5z1f4 tU 1)15 /11016rJ Signature:
TOXICITY TEST INFORMATION
Test Required: °Chronic (7 days) Test Organism: y Ceriodaphnia dubia (water flea)( P01-16JFC0 I 5S ©/a,
❑ Acute (24-48 hours) (<Plmephales promelas (fathead minnow) (Ate'o►1e Sf eell �> 1
55
❑ Mysidopsls bahia (mysid shrimp) Mu i-i .
IWC: % rY*** Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday. ***
Comments/Dilution(s): t• 1l�`{'; Cone,. 13 �5 a�.� 55��-��, ISO
SHIPPING INFORMATION.
Relinquished bDate: I r�
Received ti .------- Date: %% �% � -2
Relinquished by o Date: 2-1>
Received by: Date:
Relinquished by:
Received by:
Relinquished by:
Received by:
Date:
Date:
Date:
Date:
Time:
Time:
Time:
Time:
Time:
Time:
Time:
Time:
AM PM
AM111LP
AM M
AM PM
AM PM
AM PM
AM PM
AM PM
Sample Temperature (°C):
Method of Shipment: [-]UPS El Fed EX ❑ Meritech Pick-up ❑ Delivered ❑ Other
"* Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED
SAMPLE RECEIVING (Meritech Use Only)
Relinquished by: IV +�'� Iy ��'*Cl)r-Li
I r
Received by: � IYh 1Al1 �y11`Y e oo-k- Date: `(`t7 �� Time: ?)-=)O AM (PM
Sample Temperatures (°C): e� .l, I I Sample Condition: CVO fC.v
®@Mw_ WHITE = Laboratory copy YELLOW = Client copy

^� MERITECH, INC. (Lab # 027) MerltechSample IDM
Bioassay Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(a)meritechlabs.com Web Site: www.meritechiabs.com
Poll:
NPDESM: NC no I �
Phone: f7 o
Pipe k: 01
State: r L� r
71141
Sample Site: H r ' ' k.1A QGA 431 PT � — C-rt /CjC_)![f
Sample Type: ❑ Grab Composite # of containers: IS
II /,rr1
Sampling Time: Start Date: 1 ( O Start Time: V 0 PM
End Date: J8 I ova End Time: AM— t PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample cooler completely with ice.
Three sample must be < 6.0 °C upon receipt at Meritech"'
Collector's Name: Print ' �7tar rn �-Y+ Signalre
TOXICITY TEST INFORMATION
0
Test Required: yChronic (7 days) Test Organism: J4ryl Cerlodaphnia dubia (water flea) PASS/Fqt 155
ElAcute (24-48 hours) XPimephales promelas (fathead minnow) Second
❑ Mysidopsis bahia (mysid shrimp) Mu'Itt Conic.
.
IWC: LJ�D % *** Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday. ***
Comments/Dil u tlon (s):
SHIPPING INFORMATION
Relinquished b
V te: / J / /r3
Time:
tv
Received by: 9
4Date: �� ����
-
Time:
Relinquished by:
,�„�c`= Date: //-���,=Z
Time: ;'
AM
Received by:
Relinquished by:
Received by:
Relinquished by:
Received by:
Date:
Date:
Date:
Date:
Date:
Sample Temperature (°C)
Time:
Time:
Time:
Time:
Time:
AM
PM
PPM;;'�
r
PM
AM PM
AM PM
AM PM
AM PM
Method of Shipment: ❑ UPS El Fed EX ❑ Meritech Pick-up ❑ Delivered ❑ Other
Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED
nSAMPLE RECEIVING (Meritech Use Only)
l (;^f�
Relinquished by: crri) n�
Received by: ' 'y �r\n Dale: '! 21 Time: n AM PM
Sample Temperatures (°C): �7 - / � � L / / I
, )l / Sample Condition: Prelft
WHITE = Laboratory copy YELLOW = Client copy -40—

Title: Statesville 4th
File: States4Grow Transform: NO TRANSFORMATION
Shapiro - Wilk's Test for Normality
----------------------------------------------------------------------------
D = 0.1401
W = 0.9654
Critical W = 0.8840 (alpha = 0.01 , N = 24)
W = 0.9160 (alpha = 0.05 , N = 24)
Data PASS normality test (alpha = 0.01). Continue analysis.

Title: Statesville 4th
File: States4Grow Transform: NO TRANSFORMATION
Bartlett's Test for Homogeneity of Variance
----------------------------------------------------------------------------
Calculated B1 statistic = 2.8159 (p-value = 0.7283)
Data PASS B1 homogeneity test at 0.01 level. Continue analysis.
Critical B = 15.0863 (alpha = 0.01, df = 5)
= 11.0705 (alpha = 0.05, df = 5)

Title: Statesville 4th
File: States4Grow Transform: NO TRANSFORMATION
ANOVA Table
----------------------------------------------------------------------------
SOURCE DF SS MS F
----------------------------------------------------------------------------
Between 5 0.0338 0.0068 0.8686
Within (Error) 18 0.1401 0.0078
----------------------------------------------------------------------------
Total 23 0.1739
----------------------------------------------------------------------------
(p-value = 0.5211)
Critical F = 4.2479 (alpha = 0.01, df = 5,18)
= 2.7729 (alpha = 0.05, df = 5,18)
Since F < Critical F FAIL TO REJECT Ho: All equal (alpha = 0.05)

Title: Statesville 4th
File: States4Grow Transform: NO TRANSFORMATION
Dunnett's Test -
----------------------------------------------------------------------------
TABLE 1 OF 2
Ho:Control<Treatment
TRANSFORMED
MEAN CALCULATED IN
SIG
GROUP
IDENTIFICATION
MEAN
ORIGINAL UNITS
T STAT 0.05
-------------------------
1
Control
-----------
0.8815
------------------
0.8815
------ ---
2
13.75
0.8438
0.8438
0.6052
3
27.5
0.8015
0.8015
1.2825
4
55
0.8090
0.8090
1.1623
5
77.5
0.8068
0.8068
1.1983
6
100
0.7608
0.7608
1.9358
----------------------------------------------------------------------------
Dunnett
critical value = 2.4100 (1 Tailed,
alpha = 0.05, df =
5,18)
Title: Statesville 4th
File: States4Grow Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 2
OF 2 Ho:Control<Treatment
----------------------------------------------------------------------------
NUM OF
MIN SIG DIFF
% OF
DIFFERENCE
GROUP
IDENTIFICATION
REPS
(IN ORIG. UNITS)
CONTROL
FROM CONTROL
-----
1
--------------------
Control
-------
4
----------------
-------
------------
2
13.75
4
0.1503
17.1
0.0378
3
27.5
4
0.1503
17.1
0.0800
4
55
4
0.1503
17.1
0.0725
5
77.5
4
0.1503
17.1
0.0747
6
----------------------------------------------------------------------------
100
4
0.1503
17.1
0.1208

Title: Statesville 4th
File: States4Sury Transform: NO TRANSFORMATION
Shapiro - Wilk's Test for Normality
----------------------------------------------------------------------------
D = 0.0075
W = 0.4651
Critical W = 0.8840 (alpha = 0.01 , N = 24)
W = 0.9160 (alpha = 0.05 , N = 24)
Data FAIL normality test (alpha = 0.01). Try another transformation.
Warning - The first three homogeneity tests are sensitive to non -normality
and should not be performed with this data as is.

Title: Statesville 4th
File: States4Sury Transform: NO TRANSFORMATION
Hartley's Test for Homogeneity of Variance
Bartlett's Test for Homogeneity of Variance
----------------------------------------------------------------------------
These two tests can not be performed because at least one group has
zero variance.
Data FAIL to meet homogeneity of variance assumption.
Additional transformations are useless.

Title: Statesville 4th
File: States4Sury Transform: NO TRANSFORMATION
Steel's Many -One
Rank Test
- Ho:
Control<Treatment
----------------------------------------------------------------------------
MEAN IN
RANK
CRIT.
SIG
GROUP
IDENTIFICATION
ORIGINAL UNITS
SUM
VALUE
DF 0.05
-------------------------
1
Control
-----------
1.0000
-------
------
----- ---
2
13.75
1.0000
18.00
10.00
4.00
3
27.5
1.0000
18.00
10.00
4.00
4
55
1.0000
18.00
10.00
4.00
5
77.5
1.0000
18.00
10.00
4.00
6
100
0.9750
16.00
10.00
4.00
----------------------------------------------------------------------------
Critical
values are 1 tailed ( k = 5 )

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Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:10/21/2022
Facility: Statesville -Fourth Creek NPDES # NC00 31836 Pipe #: 001 County: Iredell
Labor rite gh i't. Comments
xx
Signaturree�off operator in po
Responsible �/Email/Phone Number
x 7;✓-U R R 0 11
Signature of Laboratory Supervisor
Test Initiation Date/Time
% Eff. Repl.
Control Surviving #
Original #
Wt/original (mg)
13.75 Surviving #
Original #
WUoriginal (mg)
27.5 Surviving #
Original #
Wt/original (mg)
F__55___j Surviving #
Original #
Wt/original (mg)
77.5 Surviving #
Original #
Wt/original (mg)
F_T0_0'_1 Surviving #
Original #
Wt/original (mg)
iter Quality Data
Control
pH (SU) Init/Fin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
High Concentration
pH (SU) Init/Fin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (mg/L)
Alkalinity (mg/L)
Conductivity (umhos/cm)
Chlorine(mg/L)
Temp. at Receipt (°C)
MAILORIGINALTO: Water Sciences Section
Aquatic Toxicology Branch
Division of Water Resources
1621 Mail Service Center
Raleigh, N.C. 27699-1621
10/11/2022 3:32 PM
1 2 3 e
Avg Wt/Surv. Control 0.748
9
10
10
10
10
10
10
10
0.586
0.846
0.775
0.719
10
10
10
8
10
10
10
10
0.587
0.691
0.611
0.543
10
1 9
1 10
19
10
10
10
10
0.742
0.643
0.712
0.573
10
9
10
10
10
10
10
10
0.707
1 0.808
I 0.797
1 0.851
10
10
10
10
10
10
10
10
0.752
0.673
0.815
0.852
10
10
10
10
10
10
10
10
0.778
1 0.814
1 0.685
1 0.815
% Survival 97.5
Avg Wt (mg) 0.732
% Survival 95.0
Avg Wt (mg) 0.608
% Survival 95.0
Avg Wt(mg) 0.668
% Survival 97.5
Avg Wt (mg) 0.791
% Survival 100.0
Avg Wt (mg) 0.773
% Survival 100.0
Avg Wt (mg) 0.773
Day
0 2 3 4 S a
7.61 / 7.54
7.53 / 7.65
7.75 / 7.51
7.73 / 7.56
17.80 / 7.68
7.89 / 7.53
7.78 / 7.47
8.04 / 7.01
7.95 / 7.22
7.61 / 7.40
7.85 / 7.62
7.87 / 7.56
8.13 / 7.45
18.02 / 6.99
24.9 / 24.8
125.0 / 24.1
25.7 / 24.1
24.0 / 24.7
124.7 / 24.5
1 24.7 125.1
124.0 / 24.6
0 1 9 3 d c
7.03
/ 7.39
7.26
/ 7.53
7.15
/ 7.43
7.26
/ 7.51
7.50 / 7.71
7.62 / 7.48
7.41 / 7.50
8.37
/ 6.72
8.10
/ 7.19
8.29
/ 7.40
8.18
/ 7.51
8.07 / 7.62
18.07 / T22
18.02 / 7.02
24.4
/ 24.2
25.3
/ 24.6
25.1
/ 24.8
24.3
/ 24.8
124.9 / 24.9
124.5 / 25.1
125.7 / 24.4
1 2 3
10/10/2022
10/12/2022
10/13/2022
24.1
24.2
24.0
54
54
54
31
29
35
404
430
408
<0.1
<0.1
<0.1
2.1 1
1.7
2.3
Dilution H2O Batch # 69 70 71 72
Hardness (mg/L) 44 44 46 42
Alkalinity (mg/L) 32 33 31 33
Conductivity (umhos/cm) 179 187 158 559
Test Organisms
i_ Cultured In -House
Outside Supplier
Hatch Date: 10/10/22
Hatch Time: 4:00-5:00 pm
Survival
Growth Overall Result
Normal
r):
IVY ,: ChV >100
Hom. Var.
["(:
117(
NOEC
100
100
LOEC
>100
>100
ChV
>100
>too
Method
Steel's
Dunnett's
State
Conc.
13.75
Survival
Critical Calculated
10 17.5
10 16
10 18
10 20
10 20
Growth
Critical Calculated
2.41 2.2803
2.41 1.1817
2.41-1.0940
2.41-0.7663
2.41-0.7663
27.5
55
77.5
too

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MER/TECH /NC_
'may ENVIRONMENTAL LABORATORIES
A Olvlsion of Water rechnofogy and Controls, 1n,
Chemical and Physical Determinations
Client: Statesville 4th NPDES#: 0031836 Start Date: 10/11/22
End Date: 10/18/22
Day
Concentration: control
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
Soft Synthetic Feshwater
Batch H:
i
(,,2��'-
pH: Initial
7 5
-7, -1
9xi
Final
7r15
'7,6,5
7r53
D.O.: Initial
717
A Cl
Final
7.01
7, 22
T W
7, A
Temp.: Initial
2 C
Final
2 If
Conductivity: Initial
% -7
Final
�(/ 3
/�
%
1 �I
4 P,1
16-7
Residual Chlorine:
G 6• i
GG
o. t
L U. l
L_ 6 i
L o. t
G U
Hardness:
7
G
Alkalinity:
3'
Da
Concentration: 13.75%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
'9
7.6�
,!
7 i (
i� 7
Final
7, Y7
DInitial
r
, 1.O.: L
7, QO
7. I
GI
(j•(
Final
7, al3
'7, 2 5
U
-).lod
Temp.: Initial
,2W
��. l
lJ.
r ()
I-f t
Final
,'C
Z`f,g
Q GI ,
Conductivity: Initial
.�
O
1—
(6l
I GI 3
Final
I Cl Cl
I
Residual Chlorine:
2- O. l
GU l
U. I
O, t
O. l
z- U, i
Day
Concentration: 27.5%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
7, S el
-L6 �
7,5-7
2 ;"
Final
7,6C'
D.O.: Initial
Final
Co q Q
Temp.: Initial
bt,a
, (
;7�
,
2 5. n
vZ�J t
Final
.'>
L�.
,',)
Conductivity: Initial
?
3
3.
\
Final
n
u�')�
�3
7i14�
a I
5
Residual Chlorine:
L U i
G p. t
L_U. t
GU 1
L U. i.
e-U. 1
LCi,

Client: Statesville 4th
MER/TEC", /NC:
`ENVIRO NMHNTAL LA66 RATORI@5
!e vr� orr e w si. ec/rnu/a vy. nnc/ Cen,�ole. I c
Chemical and Physical Determinations
NPDES#: 0031836 Start Date: 10/11/22
End Date: 10/18/22
Dav
Page 2 of 2
Concentration: 55%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
7,51
7 �
7, y �
% %
1.�
7•6Q
Final
7M
7. S
T Yy
_,j
'l , c'
1
-7.L Y
D.O.: Initial
a
P, Q7
W, (] 3
P.03
,00
t
17-7!
TOZ
Final
6,61
7r23
1/6
S"q
Z6(4
'7,27
. �C
Temp.: Initial,
71,?57.
U
ji
Zl(, L
Final,
Conductivity: Initial
�) L2
Final
? 0731Residual
#Z-61
Chlorine:
GG l
L v l
Day
Concentration: 77.5%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
71 ,�
7, Q
�'�
7, 37
7,Y
Final
7,V2
7,S5
%�4r)
��
1.5S
7,
7.
D.O.: Initial
7,1 I
Final
C
7r c
7"27
Temp.: Initial
�� , �
%'�i
�(I �
7
,
z
Final
.
C)
Z S. 2
Conductivity: Initial
3 VI
Y1
Final
; (Y
:3
14
Residual Chlorine:
GU
l
L O. i
G
O, j
Day
Concentration: 100%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
D
2L
/ cj
7,-2
S v
Final
2, 9
7,53
7,�3
7, i
1:1I
b
D.O.: Initial
'3
K(O
`4
8,(F
i�'
�•U�
p�
O�'3
Final
C,72
7,0
'7,t{0
7.r
l.G-)-
T22
�,oY
Temp.: Initial
2
)_�:-j
3
2A, 5
,
Final
Conductivity: Initial
qk>
iJ
I I (i
Q'
Final
20
a
'Dj
Lj J)-
L
Residual Chlorine:
G U.1
/_ U, i
L G i
L o I
i
! G. I
L_U 1
Hardness:
Alkalinity:
-1j
a
jar

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville 4th NPDES#: 0031836 Start Date: 10/11/22
End Date: 10/18/22
Concentration Control
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0
/ )
Rep B 0 --77—
Rep C 0
U
_�
Rep D 0 %)
✓
_
—�!
Concentration 13.75%
Tuesday Wednesday Thursday Friday
Saturday
Sunday
Monday
Tuesday
Rep A 0
Rep B 0
-o-
v
Rep C 0\
Rep D 0 —�
Concentration 27.5%
Tuesday Wednesday
Thursday
Friday
Saturday
Sunday
Monday Tuesday
Rep A 0
Rep B 0
Rep C 0
Rep D 0

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville 4th NPDES#: 0031836 Start Date: 10/11/22
End Date: 10/18/22
Concentration 55%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0
Rep B 0
Rep C 0
Rep D 0� —�
Concentration 77.5%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0_
Rep B 0_
Rep C 0
Rep D 0
Concentration 100%
Tuesday Wednesday Thursday Friday Saturday (Sunday Monday Tuesday
Rep A 0
Rep B 0
Rep C 0)_ `)
Rep D 0

MER/TECH. LNC.
ENVIRONMENTAL LABORATORIES
l 4owf r.. of N/ntcr T—hb wogy ana CAnfmis,',
FISH LARVAL SURVIVALIGROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville 4th
NPDES #: 0031836
Date of Test: 10/11/22
Initial weights taken on: by:
Final weights taken on: l0-,2 by:
Blank Pan: Initial Weight: 7�) Final Weight:
Page: 1 of 2
Outfall:
Organism: Pimephales promelas
Difference: 6, (il.
PAN WT.
PAN + ORG.
WT. OF ORG.
MEAN
CONC
REP
(mg)
WT. (mg)
(mg)
# ORG.
WT.IORG. (mg)
SUDRV %
O
D
7q -7, 0`SDI
'"
7 (/
U
D, 71q
to,)
,'�2
A
--`, z1q
Y 3 1
57 -7
--7
lor-
B
7C
�U ��j
�I
0
7
z
13.75%
WO ;�
�.
1v
0; C')
ko
D
7 ✓, _
I
�� tJG 7J
J
A
ILL=
1
0, 7q/2
T(
B
J71T
�I
f
,(ar
27.5%
7
"
.51Z0137112
D
(" ,
11 ,,
15, 7 3
0,5731

WALFR®TL'CHs /NC_
ENVIRONMENTAL LABORATORIES.
A Oh W11n cf Wr[er T.2hnoIngy' ,,d Cpntra/; /nc.
FISH LARVAL SURVIVAL/GROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville 4th
NPDES #: 0031836
Date of Test: 10/11/22
Initial weights taken on: — / by:
Final weights taken on: %O',2()—�Z;by:�
Page: 2 of 2
Outfall:
Organism: Pimephales promelas
CONIC
REP
PAN WT.
(mg)
PAN + ORG.
WT. (mg)
WT. OF ORG.
(mg)
# ORG.
MEAN
W/TJORG. (mg)
SURV %
A
-7
/ , 35
L7L /ya-
/%, o
i�
C l �7
%
1 n
B
7«/.7q
7)C171 �1q
�f, OF
0
1110
55%
D
-�
,,
S
L7 S
A
`�7/�
W01 a c
/ 2
�/7.
/ 1
B
�?o5,.3
�_3
6, 73
ZL
77.5%
7 q.0
ex, ,--21
U, /5
D
801.
X�ZO, �Z
o `�
>
), 'SD
A
t Z5
�i'O<� 3
'7, 7-F
/0
7 7
ZU U
B
,
100°/B
C
/3i�`
i �
��, �
0/1- "-r
0 - )
D
Zc6v3 ( �7
Co
/Li, ` -
UI I�
I
a-5
Z00

MERITECH, INC. (Lab # 027) Meritech Sample ID #:
�. Bloassay Sample Chain of Custody
n
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(cmeritechlabs.com Web Site: www.meritechiabs.com
CLIENT INFORMATION
Client:
Contact Person:
Physical Address:
Mailing Address:
=iZ4
NPDES#: NC ' I 1 U
Phone: 10�0 7 3y38
Pipe #: 0
City: "i�e,�ns�\����'e.. State: AB Zip:
County: Z (Zc.:u cA E-mail: �Oi-rt'� S OI'��.s'i(>..1 e.Sl)1 ��¢ f1C •fie+
c
Sample Site: —t ' ' ' �Y '_,i I..a), )
Sample Type: ❑ Grab Coompoosiite�
Sampling Time: Start Date: l o � � b i apt
End Date: I o I I ( l 2) a
# of containers:
Start Time: d AM PM
End Time: AM PM
** Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample cooler completely with ice.
The sample must be < 6.0 °C upon receipt at Meritech*'•
Collector's Name: Print: N I/XWyoy4 r ,, Signature:
TOXICITY TEST INFORMATION SS 1a=a
p - % CS6 /p
Test Required: N Chronic (7 days) Test Organism: A Ceriodaphnla dubia (water flea) TG t
❑ Acute (24-48 hours) � Plmephales promelas (fathead minnow)
second Spee;e�
fnvj+
❑ Mysidopsis bahia (mysid shrimp)
.cor%o ,
IWC: c 5 % ***Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday.***
Comments/Dllution(s): MU � C,00e, ] CO
— tI SHIPPING INFORMATION
Relinquished by: 1 �j Date:
Received by
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Date:
Date:
Date:
Date:
Sample Temperature (°C):
Time:
Time:
I l irha: E !r_V
Time:
Time:
Time:
Time:
Time:
Method of Shipment: ❑ UPS ❑Fed EX ❑ Meritech Pick-up ❑ Delivered ❑ Other
AM PM
AM P
9
AM
AM PM
AM PM
AM PM
AM PM
AM PM
*** Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED ***
SAMPLE RECEIVING (Meritech Use Only)
Relinquished by:
Received by: Date: Time: ) ,�pq� AM
Sample Temperatures (°C): Sample Condition: L i
®om� WHITE = Laboratory copy YELLOW = Client copy

MERITECH, INC. (Lab # 027) Meritech Sample ID#:
r
Bioassay Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reedidmerltechiabs.com Web Site: www.meritechiabs.com
r w r CLIENT INFORMATION
Client: L- ]T
PO#:
—*-tr("l
Contact Person: d\ -"o
h n So n
NPDES#: NC
Physical Address: �(l,�jJ-`�A"�-6 Fast
Rd -
Phone: 14 3
Mailing Address: P. p ,1f�, o )(—a I
Pipe M Q
City: .5��}e.S�11�-e
State: IlJ�
^''71
Zip:_�9�1
County: rreclpAI
E-mail: h`nhrenn,0.9+6AeS6,I)e(1�,.
Sample Site: —1 ' ' ' ( * Y CC K W %-L )1 T' [j Trt 11.1 CI TT
Sample Type: ❑ Grab, Composite # of containers:
Sampling Time: Start Date: Start Time: ® PM
End Date: End Time: :5�_1._Z AM PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample cooler completely with ice.
The sample must be < 6.0°C upon receipt at Meritech*" A , -/,/
Collector's Name: Print: Nsi_hi. /ki np;`TnN Signature:
►vl°-4
TOXICITY TEST INFORMATION sse/0
Test Required: Chronic (7 days) Test Organism: X Cerlodaphnia dubia (water Flea)
ass)FQII
❑ Acute (24-48 hours) Pimephales promelas (fathead minnow)
e>CCOr%4 Spee.t C
❑ Mysidopsis bahia (mysid shrimp) n1"1- ;. Co r\C -
IWC: 55 % *** Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday. ***
Comments/Dilution(s): 11
)U Xt% V OOQL . l -J. TD 11 d t.`] jam'.-pn
-t T.5 IIJU
SHIPPING INFORMATION
Relinquished by: y
Date: o
Time: AM
M
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Date:
Time: AM
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Date:
Time: AM%
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Date:
Time: AM
PM
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Date:
Time: AM
PM
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Date:
Time: AM
PM
Relinquished by:
Dale:
Time: AM
PM
Received by:
Date:
Time: AM
PM
Sample Temperature (°C):
Method of Shipment:
❑ UPS [_]Fed EX ❑ Meritech Pick-up
❑ Delivered ❑ Other
Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED
SAMPLE RECEIVING (Meritech Use Only)
r
Relinquished by:
Received by: ji,✓ ,J}hf,1, Date: � �_-� �I�l � . Time: AM PM
Sample Temperatures (°C): r 7 / ) / / Sample Condition: �(?�
�' WHITE = Laboratory copy YELLOW = Client copy -40®

MERITECH, INC. (Lab # 027) MeritechSamplelD# 01J 22 67
f
Bioassay Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reedAmeritechlabscom Web Site: www.meritechiabs.com
CLIENT INFORMATION
Client: 11-1.1 OF tfCA)iIICE
Contact Person: C&no,-,t - ohr,Son
Physical Address (oq_� C_--Ckcm Pa.
Mailing Address: 9. p. '�V x I I I I
City: S-�'Q '�P �`ILP State: L_)Q—
County:
Ly' CI I I I
E-mail:
-/h-r--
h Xch
SAMPLE INFORMATION
Sample Site:y
�1T'`i�1 !/y' �/' /�(1 �/
1 \d1 4el�t�
1 . ,
VJ(-.l1
—�-Iugj'i
Sample Type:
❑ Grab Composite
# of containers:rV
Sampling Time:
1TT
Start Date: 13�
�_
Start Time: �rAM
End Date: J('
I' y
O1
I O^\
End Time: A, /Y/
AM
PO#:
NPDES#: NC Q
Phone: 10 L4 9-7,?34
n Pipe #:
I 1�,
,son®S�a.�eso'r\I�e ne-�.
PM
PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample cooler completely with ice.
'',�''''' The sample must be < 6.0' C upon receipt at Meritech"' ,{p ,f9.
Collectors Name: Print: .-)IAAr'r �-1 ?/u win Signature:_�lVlrlaJ 494Y _
��-1l
TOXICITY TEST INFORMATION rG;1v/
Test Required: X Chronic (7 days) Test Organism: Ceriodaphnia dubia (water flea) Pass I 70
l Acute (24-48 hours) KPImephalespromelas (fathead minnow)
Second SpeCta
ElMysidopsis battle (mysid shrimp) m L't It; 016AC -
IWC; �� % "* Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday. ***
Co mmentsiD I I ution(s):
tt11 SHIPPING INFORMATION
Relinquished by GI Date: V I
Received by: Dale: %/rj-,.j>✓(";��
Relinquished by: Date: a)-_Z1 � a
Received by:
Date:
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Date:
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Date:
Relinquished by:
Date:
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Date:
Sample Temperature (°C):
Time: AM PM
Time: M PM
Time: j �'> AM �]v! t
Time: AM PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Method of Shipment: ❑ UPS ❑Fed EX ❑ Meritech Pick-up ❑ Delivered ❑ Other
Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED
,�JSAMPLE RECEIVING (Meritech Use Only)
Relinquished by: P)P
Received by: L'7. '1 Date: 160 1y � Time: /�3 AM MM
Sample Temperatures (° 2r � / 2' / .� / Sample Condition: /v/'C D
millimmommoompo� WHITE = Laboratory copy YELLOW = Client copy -40wlllt®

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Shapiro - Wilk's Test for Normality
----------------------------------------------------------------------------
D = 0.1056
W = 0.9587
Critical W = 0.8840 (alpha = 0.01 , N = 24)
W = 0.9160 (alpha = 0.05 , N = 24)
Data PASS normality test (alpha = 0.01). Continue analysis.

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Bartlett's Test for Homogeneity of Variance
----------------------------------------------------------------------------
Calculated B1 statistic = 1.5978 (p-value = 0.9015)
Data PASS B1 homogeneity test at 0.01 level. Continue analysis.
Critical B = 15.0863 (alpha = 0.01, df = 5)
= 11.0705 (alpha = 0.05, df = 5)

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
ANOVA Table
----------------------------------------------------------------------------
SOURCE DF SS MS F
----------------------------------------------------------------------------
Between 5 0.1038 0.0208 3.5405
within (Error) 18 0.1056 0.0059
----------------------------------------------------------------------------
Total 23 0.2094
----------------------------------------------------------------------------
(p-value = 0.0210)
Critical F = 4.2479 (alpha = 0.01, df = 5,18)
= 2.7729 (alpha = 0.05, df = 5,18)
Since F > Critical F REJECT Ho: All equal (alpha = 0.05)

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 1 OF 2
HO:Control<Treatment
----------------------------------------------------------------------------
TRANSFORMED
MEAN CALCULATED IN
SIG
GROUP
IDENTIFICATION
MEAN
ORIGINAL UNITS
T STAT 0.05
------
-----
1
--------------------
Control
-----------
0.7315
------------------
0.7315
2
13.75
0.6080
0.6080
2.2803
3
27.5
0.6675
0.6675
1.1817
4
55
0.7908
0.7908
-1.0940
5
77.5
0.7730
0.7730
-0.7663
6
100
0.7730
0.7730
-0.7663
----------------------------------------------------------------------------
Dunnett critical value = 2.4100 (1 Tailed,
alpha = 0.05, df =
5,18)
Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 2
OF 2 Ho:Control<Treatment
----------------------------------------------------------------------------
NUM OF
MIN SIG DIFF
% OF
DIFFERENCE
GROUP
IDENTIFICATION
REPS
(IN ORIG. UNITS)
----------------
CONTROL
-------
FROM CONTROL
------------
-----
1
--------------------
Control
-------
4
2
13.75
4
0.1305
17.8
0.1235
3
27.5
4
0.1305
17.8
0.0640
4
55
4
0.1305
17.8
-0.0592
5
77.5
4
0.1305
17.8
-0.0415
6
----------------------------------------------------------------------------
100
4
0.1305
17.8
-0.0415

Title: Statesville 4th
File: 4thSurvival Transform: NO TRANSFORMATION
Shapiro - Wilk's Test for Normality
----------------------------------------------------------------------------
D = 0.0550
W = 0.8286
Critical W = 0.8840 (alpha = 0.01 , N = 24)
W = 0.9160 (alpha = 0.05 , N = 24)
Data FAIL normality test (alpha = 0.01). Try another transformation.
Warning - The first three homogeneity tests are sensitive to non -normality
and should not be performed with this data as is.

Title: Statesville 4th
File: 4thSurvival Transform: NO TRANSFORMATION
Hartley's Test for Homogeneity of Variance
Bartlett's Test for Homogeneity of Variance
----------------------------------------------------------------------------
These two tests can not be performed because at least one group has
zero variance.
Data FAIL to meet homogeneity of variance assumption.
Additional transformations are useless.

Title: Statesville 4th
File: 4thSurvival Transform: NO TRANSFORMATION
Steel's Many -One
Rank Test
- Ho:
Control<Treatment
----------------------------------------------------------------------------
MEAN IN
RANK
CRIT.
SIG
GROUP
IDENTIFICATION
ORIGINAL UNITS
SUM
VALUE
------
DF 0.05
----- ---
-------------------------
I
Control
-----------
0.9750
-------
2
13.75
0.9500
17.50
10.00
4.00
3
27.5
0.9500
16.00
10.00
4.00
4
55
0.9750
18.00
10.00
4.00
5
77.5
1.0000
20.00
10.00
4.00
6
100
1.0000
20.00
10.00
4.00
----------------------------------------------------------------------------
Critical
values are 1 tailed ( k = 5 )

Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:9/28/2022
Facility: Statesville -Fourth Creek
Signature of Operator in Ressi
b
x 2221,11
Signature of Laboratory Supervisor
NPDES # NC00 31836 Pipe #: 001
Number
MAIL ORIGINAL TO: water Sciences Section
Aquatic Toxicology Branch
Division of water Resources
1621 Mail Service Center
Raleigh, N.C. 27699-1621
County: Iredell
Test Initiation Date/Time
9/20/2022
4:32 PM
Avg Wt/Surv. Control 0.707
% Elf. Repl.
1
2
3
4
Control Surviving #
10
10
10
10
% Survival 100.0
Original #
10
1
ji
13.75 Surviving #
Original #
WUoriginal (mg)
0
10
10
10
10
10
10
10
10
10
10
0.682
0.743
0.805
0.796
Test Organisms
r Cultured In -House
Outside Supplier
Hatch Date: 9/19/22
%Survival 100.0 Hatch Time: 4:00-5:00 pm
Avg Wt (mg) 0.757
27.5 Surviving #
%Survival 100.0
Original #
Wt/original (mg)
_
Avg Wt (mg) 0.745
55 Surviving#
%Survival 100.0
Original #
Wt/original (mg)
Avg WI (mg) 0.701
F-7-757-1 Surviving#
%Survival 100.0
Original #
Wt/original (mg)
Avg Wt (mg) 0.786
100 Surviving#
%Survival 100.0
Original #
Wt/original (mg)
Avg Wt (mg) 0.840
rater Quality Data
Day
Control
0
1
2
3
4 5 6
pH (SU) IniUFin
DO (mg/L) IniUFin
Temp (C) IniUFin
High Concentration
pH (SU) IniUFin
DO (mg/L) IniUFin
Temp (C) IniUFin
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (mglL)
Alkalinity (mg/L)
Conductivity (umhos/cm)
Chlorine(mglL)
Temp. at Receipt ("C)
10
10
10
10
10
10
10
10
0.831
0.854
0.756
0.703
10
10
10
10
10
10
10
10
0.837
0.855
0.810
0.859
7.79 / 7.69
7.88
/ 7.63
7.74
/ 7.62
7.96
/ 7.76
7.92
/ 7.83
7.94 / 7.75
8.03
/ 7.11
7.77 / 6.96
7.87
/ 6.98
7.62
/ 6.65
7.67
/ 7.54
7.75
/ 7.71
8.07 / 7.55
7.93
/ 6.30
24.6 / 24.2
24.9
/ 24.9
24.7
/ 24.9
24.3
/ 25.1
24.7
/ 24.3
24.3 / 25.1
24.2
/ 25.0
0 1 2 3 4 5 6
7.30 / 7.62
7.54
/ 7.65
7.24
/ 7.62
7.46
/ 7.40
7.54
17.81
7.57 / 7.62
7.40
/ 7.40
7.90 / 7.04
7.94
/ 6.50
7.65
/ 6.54
7.80
/ 7.60
7.78
/ 7.56
7.97 / 7.25
8.00
/ 6.32
24.3 / 24.1
24.3
/ 25.3
24.4
/ 24.7
24.5
/ 24.9
25.4
124.5
25.3 / 24.6
24.6
/ 25.6
1 2 3
9/19/2022
9/21/2022
9/22/2022
23.9
23.7
24.4
54
56
58
38
38
38
369
396
431
<0.1
<0.1
<0.1
2.2
1.8
1.7
Dilution H2O Batch # 63 N
Hardness (mglL) 46 A33 Conductiv176
Survival
Growth Overall Result
Normal
F)
r( ChV >100
Horn. Vac
rl
►"I
NOEC
100
100
LOEC
>100
>100
ChV
>100
>100
Method
Steel's
Dunnett's
State
Conc.
13.75
Survival
Critical Calculated
10 18
10 18
10 16
10 18
10 18
Growth
critical Calculated
2.41-0.9755
2.41-0.7451
2.41 0.1127
2.41-1.5539
2.41-2.6176
27.5
55
77.5
100

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2 /

MER/TECH 11VC_
ENVIRONMENTAL LABORATORIES
A Olvlslon of Water rechnology and Controls, /,
Chemical and Physical Determinations
Client: Statesville - 4th CreeNPDES#: 00267n—
°O 51 (
Da
Start Date: 9/20/22
End Date: 9/27/22
Concentration: control
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
Soft Synthetic Feshwater
Batch N :
/
pH: Initial
7 7 q
% S
-
i. r1 1
4 C 3
Final
:7 &
"] .;
i
`�3
—7.-7 S
D.O.: Initial
7 7 7
S
? 67
t�
9, .0 7
1.Lt 3
Final
Temp.: Initial
1
Final
Conductivity: Initial
J7
Final
26,
0 /
0
1 %
J
1�
% e
Residual Chlorine:
1
!10
Hardness:
V(
6
i
Alkalinity:
3 ,�
'51
— ----
Day
Concentration: 13.75%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
`
2 7b
% � �
7 `3``
-),(I I
7 d 1
Final
7,
7,63
7 6R
% fig
% %/
2 Ll
1 0
—7, 1
D.O.: Initial
r
7 9y/
7( %
7
Final
7 /t
So
s—
Temp.: Initial
, ,5
y t7
a .6
la5
241S
,
Final
l
Conductivity: Initial
O t)
7
0�
a
Final
Residual Chlorine:
yZ> I
Lot
_6,
Z
Da
Concentration: 27.5%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
V
% U
3 S—
7,76S
�
'--) . 2
Final
-
`i
7i"
D.O.: Initial
7
7, C�
5-�f
7e (c> 9
%.
c1
Final
/'
Temp.: Initial
. vZ
I �ty."
IY. j
Final
O
i.
7 Y,
ZV.2
Conductivity: Initial
(
�,�
2� (
�✓ 7}
Final
Residual Chlorine:

/VIERf7W4C" . //VC
Ar -(ENVIRONMENTAL IABO��T6RIE5
�w1` Chemical and Physical Determinations
Page 2 of 2
Client: Statesville - 4th Creek NPDES#:-002615T" Start Date: 9/20/22
End Date: 9/27/22
Dav
Concentration: 55%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
PH: Initial
` Y
,u''f
7
-7. lo 2
1.
Final
—
7 �G
r% C f
1.7
7 �-
D.O.: Initial
, �D
,
! �)
7. t
`g
-)1 '7
�G 7
Final
3
I,S
6.y
7-
Temp.: Initial
3
a G
`�
,F
Final
jq
2i 7
2
Conductivity: Initial
a
l -,
t 9 7
30
Final
��'_�
3J
7' !/
✓�
Residual Chlorine:
G
G ,. I I
„tc1
�'go Dav hn'0. a7.
Concentration: °/u
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
PH: Initial
YP
7 Gf
% 70
%t
'7
-1, io Y
5
Final
7 S�7
%
7.� .
7-'S
��
D.O.: Initial
7 , i
7 o{
7. (7i
%
Final
17 C)u
9
(, S.,
"7. S L
) .l `�
4,
Temp.: Initial
�7
:)VI
Final
DV
d11'a
2-
J
,
Conductivity: Initial
36
3([)e
Final
Residual Chlorine:>
Day
Concentration: 100%
0-1
1-2
2-3
3-4
4-5
5-6
6-7
Remarks
pH: Initial
Final
e
r
?AO
1
'1,lvi
D.O.: Initial
7loS7
S�
2-7F/I
1
l,vo
Final
7G
G,•_�)-O
,S
Temp.: Initial
`J
��,
2 5 • j
Final
�� %
�5 ,,�
�y
2 Y,�
,
Conductivity: Initial
3.
37�
L)D •a
3 �S
Lj.3 O
Lj- J B
Final
?
a�
`j ]
4 ���
Residual Chlorine:
Z—Oi
L
Hardness:
Alkalinity:
%�j''

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville - 4th Creek NPDES#: ^^'�'E Start Date: 9/20/22
00313'3L
t ✓ ?:Z End Date: 9/27/22
Concentration Control
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0 C-) g
Rep B 0 C) —0 --C—
0
--6-
—(;1
Rep C 0 C)
CI
2
6
Rep D 0 �� �l
/)
Concentration 13.75%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0 L)
Rep B 0
Rep C 0 �,
(L�_
A✓
�_
Rep D 0
)
r�
Concentration 27.5%
Tuesday Wednesday Thursday Friday Saturday Sunday
Monday Tuesday
Rep A 0
Rep B 0 0
Rep C 0 Q
Rep D 0

MERITECH, INC.
Mortality Data: Chronic Fathead Test
Client: Statesville - 4th Creek NPDES#:-0028731' Start Date: 9/20/22
vo3123�
�✓ 7-�4- l End Date: 9/27/22
Concentration 55%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0 L, C) 0 j�
v
Rep B 0
Rep C 0
Rep D 0 �� _� C� �)
✓_
Concentration 78%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep A 0 1
(_
J
Rep B 0
Rep C 0
Rep D 0
Concentration 100%
Tuesday Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Rep 0 b
Rep B 0
Rep C 0
Rep D 0

I9/PIER/TECH. /NC_
Y,ENVIRONMENTAL LABORATORIES `
,a o-vsms or Warer rocn.,oingr and Coorcpis, Inc
FISH LARVAL SURVIVAL/GROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville - 4th Creek
NPDES #: 002675q 00 3la 3G
Date of Test: 9/20/22
Initial weights taken on: `, - a, _) )- by: LV
Final weights taken on: —)_ by: Lam/
Blank Pan: Initial Weight: F n, Final Weight: 2, )
Page: 1 of 2
Outfall:
Organism: Pimephales promelas
Difference: 02
PAN WT.
PAN + ORG.
WT. OF ORG.
MEAN
CONIC
REP
(mg)
WT. (mg)
(mg)
# ORG.
WT./ORG. (mg)
SURV %
A
��-� . o Yl'7,��
a 1
or
loo
OL
B
6"l!.
o ��I �s
„1 l� �"
l C
�..�
%0
7, 61
O
0
C
�� �I 3 u-
-,
1,2 2
7,56
v
c, 7�Lr
,%o
D
8cl i, n
—'C ,
731
), 731
k,.
A
G 3 C�
� J
�J
Lq
B
. `i S
')
13.75%
t>>.33
W� 3
OS
7
')
7
D
-7q5- 5
7, q
), 76i "On
A
B
�,0 0,����;1
;,
,10
27.5"�o
C
U)L :7()
D
�����.-c�
�'�7�
1
to 16f
-El 9
-
,

ERITEC", /NC_
.. ENV I RONMENTAL. LABORATORIES
A Division ui water recnnomJv ann/ Controls, Inc.
FISH LARVAL SURVIVAL/GROWTH DATA SHEET
CHRONIC FATHEAD MINNOW
Facility: Statesville - 4th Creek
NPDES #: 0026754— 631 �'3(,
Date of Test: 9/20/22
Initial weights taken on: � - )(,, _A ) by:
C
Final weights taken on: ^
, _ I by:
Page: 2 of 2
Outfall:
Organism: Pimephales promelas
PAN WT.
PAN + ORG.
WT. OF ORG.
MEAN
CONC
REP
(mg)
WT. (mg)
(mg)
# ORG.
WTJORG. (mg)
SURV
A
8C)u.U5
CJ t
B
( I C,
� Cj, �
�
—)
�� ;I 17
)
55%
A
. 3-
B
a�1.��
S
n
77.5%
C..
I r' -
1
D
5
���
/i C/3
0
(ii�
A�
�. a
8 ,
3
4
B
� 3. 5 6I
�o
Inn
100%—LLES.
�
16
/6
LiEu
Ice)
,3
0
D
ill .�Y
Zwo,Is
lool

MERITECH, INC. (Lab # 027) Meritech Sample to 4: Cxi x,
i,
Bioassay Sample Chain o/Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(&meritechlabs.com Web Site: vvww.meritechlabs.com
Client:
Contact Person:
Physical Address:
Mailing Address:
City:
County:
-A:�\ 1, IL. PO#: /
10()`` NPDES#: NC J 1�I
A . Phone: 7QL4•-(3 I t7 3(I M
Pipe #: 0_
State: AK Zip: M(087
E-mail:
sample Site: I ' l' V cY yjl l i CJ .- Trt I LA-mT
Sample Type: ❑ Grab X Composite # of containers:
Sampling Time: Start Date: q I I q IA Start Time:_4 10 AM PM
End Dale:9/aO/aa End Time: :-ot�, PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample coo om etely with ice.
The sample must be < 6.6'C upon receipt at Meritech*"
Collector's Name: Print: 43A-m j D IU ,7"A✓ Signature:
TOXICITY TEST INFORMATION /�
Test Required: Chronic (7 days) Test Organism: Cerlodaphnia cl (water flea) N5`;)I-Ct I I CO�
777❑��� Acute (24-48 hours) Pimephales promelas (fathead minnow)ec"}e
❑ Mysidopsis bah/a (mysid shrimp)
Clr��aE, EGA
IWC: 55 % *** Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday. ***
Comments/Di lution(s):
SHIPPING INFORMATION
Relinquished by ,: JiJ,YL-�Dat,�
Time:
PM
Received by:
_
Date: 9 -Z Z ZZ
Time:
9,2 2
AD
PM
Relinquished by.
4/' Date: ?- L2 —Y'L-
Time:
I. CD
AM
Received by:
Date:
Time:
AM
PM
Relinquished by:
Date:
Time:
AM
PM
Received by:
Date:
Time:
AM
PM
Relinquished by:
Date:
Time:
AM
PM
Received by:
Date:
Time:
AM
PM
Sample Temperature ('C):
Method of Shipment:
❑ UPS ❑Fed EX ❑ Meritech Pick-up ❑ Delivered
❑ Other
*" Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED
SAMPLE RECEIVING (Meritech Use Only)
Relinquished by: -/ CU r1 L
Received by: (,.�.11=--------`— Date: t' .J, '; Time: _�,� AM PM;
Sample Temperatures ('C): 2,L / 2r 2 / / Sample Condition:
—� WHITE = Laboratory copy YELLOW = Client copy

MERITECH, INC. (Lab # 027) Meritech Sample ID M 01222
Bloassav Sample Chain of Custody
642 Tamco Rd, Reidsville, N.C. 27320
Phone: [phone] Fax: [phone]
Laboratory Supervisor E-mail: mike.reed(a)merltechlabs com Web Site: www.meritechlabs.com
Client
Contact Person
Physical Address
Mailing Address
City
County: �_—re p 11
E-mail:
I1 41
PO#:
NPDES#: NC �- Phone:77 W-879 -SC{ AR
Pipe #: _n
Sample Site: � l - . I,' X %.-C Y--, u) l,J 1 V- r, tt l o-m l- C> a i tck I I
Sample Type: ❑ Grab Composite # of containers: _�_
Sampling Time: Start Date:: / p, Start Time:' PM
End Date:"/ �� �la� End Time: AM PM
Triple rinse sample container with sample before filling completely with NO AIR SPACE. Pack the sample cooler completely with ice.
The sample must be < 6.0'C upon receipt at Meritech*"'
Collector's Name: Print: 4n wro!!, Signature:
TOXICITY TEST INFORMATION
o/
Test Required: Xchronic (7 days) Test Organism: Cerlodaphnia dubla (water flea) rn F.(S,5
❑ Acute (24-48 hours) Pfinephales promelas (fathead minnow)
❑ Mysldopsis bahia (mysid shrimp) (,� I-�� 0) .
1WC: % *** Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Frida/y/ ***
Comments/Dilutlon(s): r I i , [, �*, r)
Relinquished
Received
Relinquished
Received
Relinquished by:
Received by:
Relinquished by:
Received by:
SHIPPING INFORMATION
Date:
a/
Date: 22-
Date: RAZZ—
2 `L
��-
Date:
Dale:
Date:
Date:
Date:
Sample Temperature (°C):
Time: AM PM
Time: Z AM PM
Time: 2'O J7 AM `&M
Time: AM PM
Time: AM PM
Time: AM PM
Time: AM PM
Time: AM PM
Method of Shipment: ❑ UPS [-]Fed EX ❑ Meritech Pick-up ❑ Delivered ❑ Other
Samples shipped on Friday must be Fed Ex and must be clearly labeled for Saturday Delivery, NO SIGNATURE REQUIRED'"'
_ SAMPLE RECEIVING (Meritech Use Only)
Relinquished by: P cn j IQI)ONTF 7
Received by: —� Date: _27 ; L Time: 2 %Cl 5 AM l�Pi1
Sample Temperatures (°C): Sample Condition:
mmmmmmmmIgill WHITE = Laboratory copy YELLOW = Client copy �®

MERITECH, INC. (Lab #027) Merltech Sample lD
Bloassav Sample Chain of Custody
642 Tamco Rd, Reidsville NC 27320
Phone: [phone] Fax: [phone]
Toxicity Supervisor email: [e-mail] Web Site: www.marltachiabs.com
CLIENT INFORMATION
Client: 1,,�-�S\> 1 `1� PO#:
Contact Person: y ` �(1 NPDES#: NC 0(p-) p � �p
Address: Phone: 76�F� 1 p - 1�i 3,'1
City: ,1 Q . Pipe##:
County: e,de _ I State: /V L ' Zip: ,� X 63 -7
Sample Site:
Sample Type: ❑Grab Composite ## of
containers: �_
Sampling Time: Start Date: 1 \ \ \ Start Time: PM
i"t� I PM
End Date: G'r�K7`�l End Time: �A PM
—Triple rinse sample container with sample before filling completely with NO AIRSPACE. Pack the sample cooler completely with ice. The
sample must be <0.6°C upone receipt at Meritech—
Collector's Name: Print: N1 < 00I,t-Tn,�, Signature:
TOXICITY TEST INFORMATION
r
Test Required: hranic (7 days) Test Organism: `xCerlodaphnla dubia (water flea)PG SS'J C-0 -o W,%a/o
❑ Acute (24-48 hours) WPimephales promelas (fathead minnow) Se C-0nasPcCi 2
❑ Mysidopsisbahla (mysidshrimp) Mts_.It-1 COt'\
IWC: 5 % "`Friday Samples for Chronic Fathead test must be collected after 9:00 a.m. on Friday —
Comments:
Relinquished by:
SHIPPING INFORMATION
Date:
`I 3, �1'
Received by:
v/ Date:
'VA ;1-
Relinquished by:
/
/ d ,�(/_�/ Date:-7
' ��-
Received by:
Date:
Relinquished by:
Date:
Received by:
Date:
Relinquished by:
Date:
Received by:
Date:
Sample Temperature (°C):
Time: 10-U7 AM PM
Time: l,i of al PM
Time: ) 05 AM PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Time:
AM
PM
Method of Shipment:❑ UPS ❑ Fed EX ❑ Meritech Pick-up ❑Delivered ❑ Other
" Samples shipped on Friday must be FedEx and must be clearly labeled for Saturday delivery, NO SIGNATURE REQUIRED "
,�1 SAMPLE RECEIVING (Laboratory Use Only)
Relinquished by: i11j
Received by: ���,LZ I l Dale: G ;� i� ;%., Time: %7 I AM (fPM�
Sample Temperatures (°C): I , 1 / 1 1 / I 1 / Sample Condition: Ci lei \(-T-
lummmmmmmall MUITC - 1 ..6...nlnr.......•, Vl 1 OW - rnn.......

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Shapiro - Wilk's Test for Normality
----------------------------------------------------------------------------
D = 0.0936
W = 0.9882
Critical W = 0.8840 (alpha = 0.01 , N = 24)
W = 0.9160 (alpha = 0.05 , N = 24)
Data PASS normality test (alpha = 0.01). Continue analysis.

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Bartlett's Test for Homogeneity of Variance
----------------------------------------------------------------------------
Calculated B1 statistic = 8.5050 (p-value = 0.1305)
Data PASS B1 homogeneity test at 0.01 level. Continue analysis.
Critical B = 15.0863 (alpha = 0.01, df = 5)
= 11.0705 (alpha = 0.05, df = 5)

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
ANOVA Table
----------------------------------------------------------------------------
SOURCE DF SS MS F
----------------------------------------------------------------------------
Between 5 0.0543 0.0109 2.0877
Within (Error) 18 0.0936 0.0052
----------------------------------------------------------------------------
Total 23 0.1479
----------------------------------------------------------------------------
(p-value = 0.1143)
Critical F = 4.2479 (alpha = 0.01, df = 5,18)
= 2.7729 (alpha = 0.05, df = 5,18)
Since F < Critical F FAIL TO REJECT Ho: All equal (alpha = 0.05)

Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 1 OF 2
Ho:Control<Treatment
----------------------------------------------------------------------------
TRANSFORMED
MEAN CALCULATED IN
SIG
GROUP
IDENTIFICATION
MEAN
ORIGINAL UNITS
T STAT 0.05
-----
1
--------------------
Control
-----------
0.7068
------------------
0.7068
------ ---
2
13.75
0.7565
0.7565
-0.9755
3
27.5
0.7447
0.7447
-0.7451
4
55
0.7010
0.7010
0.1127
5
77.5
0.7860
0.7860
-1.5539
6
100
0.8403
0.8403
-2.6176
----------------------------------------------------------------------------
Dunnett critical value = 2.4100
(1 Tailed,
alpha = 0.05, df =
5,18)
Title: Statesville 4th
File: 4thGrowth Transform: NO TRANSFORMATION
Dunnett's Test -
TABLE 2
OF 2 Ho:Control<Treatment
----------------------------------------------------------------------------
NUM OF
MIN SIG DIFF
% OF
DIFFERENCE
GROUP
IDENTIFICATION
REPS
(IN ORIG. UNITS)
CONTROL
FROM CONTROL
-----
1
--------------------
Control
-------
4
----------------
-------
------------
2
13.75
4
0.1229
17.4
-0.0498
3
27.5
4
0.1229
17.4
-0.0380
4
55
4
0.1229
17.4
0.0057
5
77.5
4
0.1229
17.4
-0.0793
6
----------------------------------------------------------------------------
100
4
0.1229
17.4
-0.1335

Sludge Management Description
4t" Creek WWTP
Solids are disposed of through Class B Land Application by Synagro, Permit #WQ0016247.
Solids also disposed of through City of Statesville Class A Permit #WQ0006245.

EPA Identification Number NPDES Number Facility Name Outfall Number
NC0031836 City of Statesville 4th Creek 1
Method Number Estimated Concentration (If
Pollutant (Required) CAS number (if Applicable) Reason Pollutant Believed Present in Discharge Known)
1,4-Dioxand 624.1 Metal Finishers

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
8/21/2023
c. POC review due to:
e. Contact Information
4
Date of (final) Review
Municipal NPDES renewal
0
Regional Office (RO)
Mooresville
5
NPDES Permit Writer (pw)
Gary Perlmutter
HWA-AT/LTMP Review
❑
RO PT Staff
Wes Bell
RO NPDES Staff
Andrew Pitner
6
Perm ittee- Facility Name
City of Statesville - Fourth Creek WWTP
New Industries
❑
Facility PT Staff, email
Brandy Johnson, <blohnson(d_)statesvillenc.net>
7
NPDES Permit Number
NCO031836
WWTP expansion
❑
f. Receiving Stream
8
NPDES Permit Effective Date
Stream reclass./adjustment
❑
Outfall 1
9
Chemical Addendum Submittal Date
Outfall relocation/adjustment
❑
Receiving Stream:
Fourth Creek
QA, cfs:
46.5
10
NPDES Permit Public Notice Date
7Q10 update
❑
Stream Class
C
7Q10 (S), cfs:
7.5
11
eDMR data evaluated from:
1/1/2019
to
6/30/2023
Other POC review trigger, explain:
Oufall Lat.
35.46.36 N
Outfall Long.
80.47.15 W
12
a. WWTP Capacity Summary
Outfall II
13
Current Permitted Flow, mgd
4.0
Designed Flow,
m d
4
Receiving Stream:
QA, cfs:
14
Permitted SIU Flow, mgd
0.14
d. IU Summary
Stream Class
7Q10, cfs:
15
b. PT Docs. Summary
# IUs
Oufall Lat.
Outfall Long.
16
L
IWS approval date
10/14/2021
# SIUs
4
Is there a PWS downstream of the Facility's Outfalls?
0 YES ❑ NO
17
N
I--L/STMP
approval date:
4/2/2019
# CIUs
4
Comments:
18
E
a
U)
W
HWA approval date
6/28/2022
I
# NSCIUs
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
DENSO Manufacturing North Carolina, Inc
433
Flow, BOD, TSS, Temperature, pH, Ammonia, Cd, Cr, Cu, CN, COD, Pb, Ni, O&G, Ag, Zn, TTO
7/1/2021
23
2
Nelson Global
433
Flow, BOD, TSS, Temperature, pH, Ammonia, Cd, Cr, Cu, CN, COD, Pb, Ni, O&G, Ag, Zn, TTO
4/15/2023
24
3
PauMac Tubing
433
Flow, BOD, TSS, Temperature, pH, Ammonia, Cd, Cr, Cu, CN, COD, Pb, Ni, O&G, Ag, Zn, TTO
7/1/2023
25
4
Pratt Industries
430
Flow, BOD, TSS, Temperature, pH, Ammonia, Cd, Cr, Cu, CN, COD, Pb, Ni, O&G, Ag, Zn, TTO
7/1/2021
26
5
31
Comment:
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
3) facility has SIUs and DWQ approved Pretreatment Program
35
❑
36
❑
37
p
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
❑
7) facility's sludge is taken to a landfill, if yes which landfill:
43
❑
8) other
44
Sludge Disposal Plan:
Biosolids are disposed of through Class B land application by Synagro via Permit WQ0016247, and through the Statesville Class A permit W00006245.
45
46
47
1 Sludge Permit No:
WQ0016247, WQ0006245
Page 1 31836 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)1
L/STMP
Effluent Freq
NPDES
Effluent Freq
PQLs review
Comment
51
a
/o
Removal
Rate
PQL from
L/STMP, ug/I
Required PQL
per NPDES
permit
Recomm.
PQL, ug/I
52
0
Flow
0
0
0
❑
Quarterly
Continuous
53
0
BOD
'
❑r
0
❑
98.85
Quarterly
Daily
2.0 mg/L
54
0
TSS
0
❑r
❑�
❑
99.3
Quarterly
Daily
2.5 mg/L
55
0
NH3
0
0
0
❑
97.29
Quarterly
Daily
0.1 mg/L
56
0
Arsenic
❑
❑
0
0
❑
45
Quarterly
5.0
2.0
Reduce to recommended PQL
57
❑
Barium
❑
❑
❑
❑
❑
58
❑
Beryllium(5)
❑
❑
❑
❑
❑
59
0
Cadmium(1)
❑
❑
0
0
0
❑
67
Quarterly
0.4
0.5
60
❑r
Chromium(1)
❑�
❑
0
❑
2
❑
82
Quarterly
Quarterly
2.0
10.0
61
❑./
Copper(1)
0
❑r
❑./
❑
0
❑
54.82
Quarterly
Quarterly
2.0
2.0
62
❑r
Cyanide
❑
❑
❑
0
❑
69
Quarterly
5.0
63
0
Lead(1)
❑�
❑
❑2
0
❑
61
Quarterly
Quarterly
3.0
2.0
Reduce to recommended PQL
64
0
Mercury(5)
❑
❑
2
❑
98.36
Quarterly
0.001
0.001
65
0
iMolybdenum
❑
❑
p
p
❑
7.05
Quarterly
2.5
10.0
66
0
Nickel(1)
❑�
❑
❑�
❑�
1Z
❑
23.61
Quarterly
Quarterly
2.0
5.0
67
0
Selenium
❑
❑
❑./
❑s
❑
50
Quarterly
5.0
68
0
Silver
❑
❑
❑
0
❑
75
Quarterly
5.0
1.0
Reduce to recommended PQL
69
0
Zinc(1)
❑r
❑
0
❑�
2
❑
42.84
Quarterly
Quarterly
10.0
10.0
70
p
Sludge Flow to Disposal
0
❑
❑
Quarterly
71
p
% Solids to Disposal
0
❑
❑
Quarterly
72
p
Oil & Grease
p
❑
Quarterly
73
❑�
TN
0
0
❑
❑
75.99
Quarterly
Weekly
0.2 mg/L
74
0
TP
0
0
❑
❑
71.5
Quarterly
Weekly
0.16 mg/L
75
❑2
COD
❑
❑
❑�
❑
94.15
Quarterly
20.0 mg/L
76
❑./
1,4-Dioxane
0
❑
0
❑
Quarterly
Quarterly
Recommend adding to LTMP
77
0
PFAS
0
❑
❑
❑
Quarterly
Quarterly
Recommend adding to LTMP
78
❑
❑
❑
❑
❑
79
❑
❑
❑
❑
❑
80
❑
❑
❑
❑
❑
81
❑
I
I ❑
❑
❑
❑
82
Footnotes:
83
(1) Always in the LTMP/STMP due to EPA -PT requirement
84
(2) Only in LTMP/STMP if listed in sludge permit
85
(3) Only in LTMP/STMP while SIU still discharges to POTW
86
(4) Only in LTMP/STMP when pollutant is still of concern to POTW
87
(5) In LTMP/STMP, if sewage sludge is incinerated
88
Please use blue font for the info updated by pw
89
Please use red font for POC that need to be added/modified in LJSTMP sampling
plan
90
Ple-wase --,;p orange font and strikethrough for PGG that may be FeMGVPd from USTIN.
91
Blue shaded cell (D60:1-182):
Parameters usually included under that POC list
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 31836 POC Review Form

NORTH CAROLINA 2022 303(D) LIST
Upper Yadkin Yadkin -Pee Dee River Basin
AU Name AU Number Classification AU_LengthArea AU —Units
AU ID Description
Salem Creek (Middle Fork Muddy Creek) 12-94-12-(4) C 1.9 FW Miles
13698 From Burke Creek to SR1120
PARAMETER IR CATEGORY CRITERIA STATUS' REASON FOR RATING 303D YEAR
IBenthos (Nar, AL, FW) 5 l IExceeding Criteria Fair, Poor or Severe Bioclassification 2008
Copper (7 µg/I, AL, FW) 5 Exceeding Criteria Legacy Category 5 Total Metals 2008
Assessment
Zinc (50 µg/I, AL, FW) 5 Exceeding Criteria Legacy Category 5 Total Metals 2008
Assessment
Salem Creek (Middle Fork Muddy Creek) 12-94-12-(4)c C
13699 From SR1120 to Muddy Creek
PARAMETER IR CATEGORY CRITERIA STATUS
Turbidity (50 NTU, AL, FW miles) 5 Exceeding Criteria
Benthos (Nar, AL, FW) 5 Exceeding Criteria
Copper (7 µg/I, AL, FW) 5 Exceeding Criteria
Zinc (50 µg/I, AL, FW)
5 Exceeding Criteria
REASON FOR RATING
2.6 FW Miles
303D YEAR
2022
Fair, Poor or Severe Bioclassification 2008
Legacy Category 5 Total Metals 2008
Assessment
Legacy Category 5 Total Metals 2008
Assessment
Yadkin -Pee Dee River Basin
03040102
South&dkin
(Bear Creek
12-108-18-(3
WS-IV
8.6I IFW Miles
F_ 1452 From a point 0.2 mile downstream
of U.S. Hwy. 64 to South
Yadkin River
PARAMETER IR CATEGORY
CRITERIA STATUS
REASON FOR RATING
303D YEAR
Copper (7 µg/I, AL, FW) 5
Exceeding Criteria
Legacy Category 5 Total Metals
2010
Assessment
Fourth Creek
12-108-20a1
C
10.2 FW Miles
1459 From source to Morrison
PARAMETER IR CATEGORY
CRITERIA STATUS
REASON FOR RATING
303D YEAR
Fish Community (Nar, AL, FW) 5
Exceeding Criteria
Fair, Poor or Severe Bioclassification 20 88
Fourth reef k
12-10 028 a3
C
3.8 FW Miles
13578 From SR2316 to SR2308
PARAMETER IR CATEGORY
CRITERIA STATUS
REASON FOR RATING
303D YEAR
Benthos (Nar, AL, FW) 5
Exceeding Criteria
Fair, Poor or Severe Bioclassification 1998
Fish Community (Nar, AL, FW) 5
Exceeding Criteria
Fair, Poor or Severe Bioclassification 1998
6/7/2022 NC 2022 303d List- Approved by EPA 4/30/2022 Page 176 of 192

NORTH CAROLINA 2022 303(D) LIST
South Yadkin Yadkin -Pee Dee River Basin
AU Name
AU ID Description
Fourth Creek
13615 From SR2308 SR1272
PARAMETER IR CATEGORY
(Fish Community (Nar, AL, FW) 5
AU Number Classification
12-108-20a3 C
AU_LengthArea AU —Units
4.8 FW Miles
CRITERIA STATUS REASON FOR RATING 303D YEAR
(Exceeding Criteria Fair, Poor or Severe Bioclassification 1998
Second Creek (North Second Creek) 12-108-21a C 1.7 FW Miles
1472 From source to Withrow Creek
PARAMETER IR CATEGORY CRITERIA STATUS REASON FOR RATING 303D YEAR
Turbidity (50 NTU, AL, FW miles) 5 Exceeding Criteria 2020
Second Creek (North Second Creek) 12-108-21c C 5.7 FW Miles
12980 From Beaverdam Creek to South Yadkin River
PARAMETER IR CATEGORY CRITERIA STATUS REASON FOR RATING 303D YEAR
Turbidity (50 NTU, AL, FW miles) 5 Exceeding Criteria 2020
Snow Creek 12-108-9-(0.6 WS-IV 12.5 FW Miles
1501 From a point 1.1 miles upstream of Iredell County SR 1614 to South Yadkin River
PARAMETER IR CATEGORY CRITERIA STATUS REASON FOR RATING 303D YEAR
Fish Community (Nar, AL, FW) 5 Exceeding Criteria Fair, Poor or Severe Bioclassification 2008
Yadkin -Pee Dee River Basin
03040103
YADKIN RIVER (including upper portion of High Rock 12-(108.5)b1 WS-V
Lake below normal operating level)
13187 From mouth of Grants Creek to Buck Steam Statio
PARAMETER IR CATEGORY CRITERIA STATUS
Turbidity (50 NTU, AL, FW miles) 5 Exceeding Criteria
PCB Fish Tissue Advisory (Advisory, FC, NC) 5 Exceeding Criteria
Lower Yadkin
369.5 FW Acres
REASON FOR RATING 303D YEAR
2018
DHHS Fish Consumption Advisory 2014
YADKIN RIVER (including upper portion of High Rock 12-(108.5)b2 WS-V
Lake below normal operating level)
3,078.5 FW Acres
13315 From Buck Steam Plant to a line across High Rock Lake from the downstream side of mouth of Crane
Creek to the downstream side of mouth of Swearing Creek
PARAMETER IR CATEGORY CRITERIA STATUS REASON FOR RATING 303D YEAR
PCB Fish Tissue Advisory (Advisory, FC, NC) 5 Exceeding Criteria DHHS Fish Consumption Advisory 2014
6/7/2022 NC 2022 303d List- Approved by EPA 4/30/2022 Page 177 of 192

North Carolina Fish Community Report
8/23/2023 1:25:32 PM
Waterbody Fourth Cr No. Secs.
3551
NCIBI Score 32 NCIBI Rating Poor
Station: SR 2308 No. Units
2
County: Iredell CPUE
2.3
Station ID
QF16 Basin YAD
Latitude 35.76861 Width
10 m
Collection No.
2003-43 Date 7/29/2003
Longitude-80.74972 Depth
0.5 m
❑ Reference
Site ❑ Basin Site
Ecoregion P Drainage
55.2 mi2
Not Rated ❑
❑d Special Study
8 Digit HUC 03040102 Elevation
720 ft
Temperature
23.2 °C
8 HUC Name South Yadkin River
Specific Conductance
118 NS/cm
Level IV Ecoregion Southern Outer Piedmont
Dissolved Oxygen
7.3
Stream Classification C
Data Entry BT
pH
6.9 s.u. s.u.
Stream Index No. 12-108-20
Total Habitat Score 50
Clarity Turbid
Family Scientific Name
Trophic Status Tolerance
Multiple Age No.
Exotic
Catostomidae Catostomus commersonii
Omnivore
Tolerant
yes 12
❑
Centrarchidae Lepomis auritus
Insectivore
Tolerant
yes 11
❑
Centrarchidae Lepomis gibbosus
Insectivore
Intermediate
no 1
❑
Centrarchidae Lepomis macrochirus
Insectivore
Intermediate
no 5
❑
Clupeidae Dorosoma cepedianum
Omnivore
Intermediate
no 2
❑
Cyprinidae Clinostomus funduloides
Insectivore
Intermediate
no 1
❑
Cyprinidae Cyprinella analostana
Insectivore
Tolerant
yes 7
❑
Cyprinidae Cyprinella lutrensis
Insectivore
Tolerant
yes 4
Cyprinidae Hybognathus regius
Herbivore
Intermediate
no 2
❑
Cyprinidae Nocomis leptocephalus
Omnivore
Intermediate
yes 19
❑
Percidae Etheostoma brevispinum
Insectivore
Intermediate
yes 5
❑
Percidae Etheostoma olmstedi
Insectivore
Intermediate
no 13
❑
Number Exotic Species 1
Number Exotic Fish 4
Metric
Value
Score
Collectors = Bunch, Butz, Hale, Tracy. Substrate = Sand primarily, but also clay
Number of Species:
12
3
and cobble. Lots of deadfalls, better habitat than lower site. Massive bank
erosion from winter storms. Fast and narrow compared to lower site at SR 1985
Number Fish:
82
1
(Rowan County). Sampled 500 ft. above and 100 ft. below the bridge. No seine
Number Darter Sp:
2
3
was used. Y-O-Y largemouth bass, redbreast sunfish, fantail darter, tessellated
No. Sunfish,Bass,Trout:
3
5
darter. Y-O-Y excluded from the sample included Micropterus salmoides.
Number Sucker Sp:
1
3
Fourth Creek TMDL Study.
Number Intolerant Sp.
0
1
Percent Tolerant Fish:
41
1
Percent Omni + Herb:
43
3
Percent Insectivores:
57
3
Percent Piscivores:
0.00
1
Percent Diseased Fish:
0.00
5
Percent Sp Multiple Ages:
50
3

September 15, 2022
Division of Water Resources
Water Quality Permitting Section — NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Permit Renewal Application
Fourth Creek Wastewater Treatment Plant
NPDES Permit No. NCO031836
To Whom it may concern:
RECEIVED
SiF 16 ZOZZ
NCpEQYDw?JNPDES
Enclosed you will find an original and two copies of the Permit Renewal Application EPA form 2A
with Table A, Table B, Table C, Table E, Table F, Process Flow Schematic and Topographic vicinity map.
The City of Statesville is requesting the permit renewal for the Fourth Creek WWTP under permit
NC0031836. The continued operation of the Fourth Creek WWTP consists of the following:
➢ Influent Pump Station
➢ Perforated panel bar screens (2)
➢ Extended aeration basins (2) with mechanical aerators (6 per basin)
➢ RAS and WAS pumps (2 each)
➢ Secondary wet well
➢ Secondary Clarifiers (3)
➢ Hypochlorite disinfection
➢ Sodium Bisulfite de -chlorination
➢ Aerobic digester with mechanical aerators (3)
➢ 2 meter / 3 belt filter press
➢ Alkaline sludge stabilization
We do not have the second species toxicity tests completed yet, but I will forward those results when
we get them.
Should you require more information, or further action is required, please contact me at 704-878-3438.
Sincerely,
ZKenGaI11owayy
Plant Supervisor, Fourth Creek WWTP

nNto
V � y•M
State of North Carolina
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street + Raleigh, North Carolina 27611
James G. Martin, Governor R. Paul Wilms
S. Thomas Rhodes, Secretary November 19, 1987 Director
Mr. Peter T. Connet, City Manager
City of Statesville
P. 0. Box 1111
Statesville, NC 28677
SUBJECT: Permit No. NC0031836
Authorization to Construct
City of Statesville
Fourth Creek Wastewater. Treatment Plant
Expansion to 6.0 MGD Capacity
Iredell County
Dear Mr. Connet:
A letter of request for an Authorization to Construct was received September 29,
1987, by the Division and final plans and specifications for the subject facilities
expansion have been reviewed and found to be satisfactory. Authorization is hereby
granted for the construction of additions to the City of Statesville's existing 4.0
MGD Fourth Creek Wastewater Treatment Plant to increase capacity to 6.0 MGD, said
additions consisting of a third 70 ft. diameter x 12 ft. deep clarifier, a second
chlorine contact and effluent reaeration basin, a new aerated sludge digestion basin
with three (3) 60 H.P. mechanical aerators, a new sludge pumping station with dual 25
H.P. rotary lobe sludge transfer pumps, a belt -type filter press and polymer
conditioning system for sludge dewatering, and associated piping, valves, fittings and
appurtenances.
This Authorization to Construct is issued in accordance with Part III paragraph C
of the NPDES Permit No. NC0031836 issued November 19, 1987, and shall be subject to
revocation. unless the wastewater treatment facilities are constructed in accordance
with the conditions and limitations specified in Permit No. NC0031836.
The sludge wastes generated from these treatment facilities must be disposed of
in accordance with G.S. 143-215.1 and in a manner approvabl.e by the North Carolina
Division of Environmental Management.
The Permittee must employ a certified wastewater operator in accordance with Part
III paragraph D of the referenced permit.
Pollution Prevention Pays
P.O. Box 27687, Paleigh, North Carolina 27611-7697 Telephone [phone]
An Eaual Onnorrunity Affirmativr Actirnn PmrJ—

The Mooreville Regional Office, telephone number 704/663-1699 shall be notified
at least twenty-four (24) hours in advance of start-up of the installed facilities so
that an in -place inspection can be made. Such notification to the Regional Supervisor
shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday
through Friday, excluding State Holidays.
In event the facilities fail to perform satisfactorily in meeting its NPDES
permit effluent limits, the Permittee shall take such immediate corrective action as
may be required by this Division, including the construction of additional wastewater
treatment and disposal facilities.
Four monitoring wells, one (1) upgradient and three (3) downgradient, shall be
installed to monitor groundwater quality. The location and construction details for
these wells must be by approval of the Division's Mooresville Regional Office, from
which a well construction permit must be obtained. The monitoring wells shall be
sampled initially after construction and thereafter every March, .July, and November
for the following parameters:
NO3 pH
Total Ammonia Total Organic Carbon
Total Dissolved Solids Chloride
Water Levels Total Organic Halides (in November only)
Total Coliforms Total Suspended Solids
(Initial sampling only)
The measurements of water level must be made prior to sampling for the remaining
parameters. The analytical methods used for Total Organic Halides must be capable of
detecting the total of all halogenated organic compounds present at a concentration of
5.0 parts per billion (ppb) or greater. Any individual halogenated organic compound
present at or above the method detection limit (MDL) must be identified, quantified
and reported with the sampling results. The results of the sampling and analysis
shall be sent to the Division of Environmental Management on Form GW-59 (Compliance
Monitoring Report Form) every April, August and December. Any additional groundwater
quality monitoring deemed necessary by the Division shall be provided.
The aerobic digestor basin shall be constructed with a compacted Bentonite/clay
liner at least one foot thick at all locations and with a maximum permeability not to
exceed 1 x 10 —6 cm/sec. Following installation and inspection of the basin liner,
and prior to use, vertification of the liner's compliance with permeability and
thickness requirements shall be provided to the Division by the project Engineer.
Upon completion of construction and prior to operation of this permitted
facility, a certification must be received from a Professionnl engineer certifying
that the permitted facility has been installed in accordance with with the approved
plans and specifications.

u
One (1) set of approved plans and specifications is fining forwarded to you. If
you have any questions or need additional information, please (-W.- ct. Mr.. Robert
Teulings, telephone number 919/733-5083, ext. 177.
ZZ—
cc: Iredell County Health Department
Winston-Salem Regional Supervisor
Dennis Ramsey
Groundwater Section
Engineer's Certification
Sincerely yours,
R. Paul Wilms
I , as a duly registered Professional Engineer in the
State of North Carolina, hereby certify that construction of these permitted
facilities has been completed in accordance with the approved plans and
specifications.
Signature Registration Number Date
Permit No. N. C0031836

c)l CITY otf
tae
NORTH CAROLINA
August 31, 2023
Gary Perlmutter, Environmental Specialist II
NCDEQ/Division of Water Resources
NPDES Municipal Permitting Unit
1617 Mail Service Center, Raleigh NC 27699-1617
Subject: Verification to Operate at 6 MGD
Permit No. NCO031836
Fourth Creek WWTP
Dear Mr. Perlmutter,
In response to your request dated Monday 28th, 2023 requesting information regarding an Engineer
Certification for the upgrade to 6 MGD. In 1987, the following additions were installed to bring the
Fourth Creek WWTP operable at the 6 MGD capacity.
• A 70' diameter x 12' deep final clarifier bringing the total to 3 final clarifiers.
• A second chlorine contact and effluent reaeration basin.
• A new aerobic digester with (3) 60 hp mechanical aerators.
• A new sludge pumping station with dual 25 hp rotary lobe sludge pumps.
• A new belt type filter press with associated polymer system, piping, valves, and fittings for
sludge dewatering.
The above additions are based on a set of drawings dated 1987, project t# 0732 from Peirson & Whitman
Inc. Consulting Engineers. Upon the start of my employment with the City of Statesville in 1996, the
above additions had already been installed and completed. The above information is to the best of my
knowledge and will serve as an amendment to the NPDES application renewal process.
S'nc ly,
And Smith
Water Resources Operations Manager
PO Box 1111 • Statesville, NC 28687 • ci.statesville.nc.us

MONITORING REPORT(MR) VIOLATIONS for:
Report Date:
08/24/22 Page
1 of 3
Permit:
NCO031836
MRS Betweel 8 - 2018 and 8 - 2023
Region:
%
Violation Category:%
Program Category:
Facility Name: %
Param Nam(%
County:
%
Subbasin: %
Violation Action: %
Major Minor:
%
PERMIT: NCO031836
FACILITY: City of Statesville -Fourth Creek WWTP
COUNTY: Iredell
REGION: Mooresville
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT
OUTFALL
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
01 -2022
001
Effluent
Coliform, Fecal MF, MFC
01/08/22
5 X week
#/100ml
400
844.9
111.2
Weekly Geometric Mean
Proceed to
Broth, 44.5 C
Exceeded
Enforcement Case
07-2022
001
Effluent
Copper, Total (as Cu)
07/01/22
Monthly
ug/I
31
35
12.9
Daily Maximum
Proceed to NOV
Exceeded
07-2023
001
Effluent
Copper, Total (as Cu)
07/18/23
Monthly
ug/I
31
202
551.6
Daily Maximum
None
Exceeded
07-2023
001
Effluent
Copper, Total (as Cu)
07/31/23
Monthly
ug/I
23.9
102
326.8
Monthly Average
None
Exceeded
12-2018
001
Effluent
Flow, in conduit or thru
12/31/18
Continuous
mgd
4
4.45
11.1
Monthly Average
Proceed to NOD
treatment plant
Exceeded
01 -2019
001
Effluent
Flow, in conduit or thru
01/31/19
Continuous
mgd
4
4.04
1.0
Monthly Average
No Action, BPJ
treatment plant
Exceeded
02 - 2019
001
Effluent
Flow, in conduit or thru
02/28/19
Continuous
mgd
4
4.21
5.4
Monthly Average
Proceed to NOD
treatment plant
Exceeded
02 - 2020
001
Effluent
Flow, in conduit or thru
02/29/20
Continuous
mgd
4
4.33
8.3
Monthly Average
Proceed to NOD
treatment plant
Exceeded
05-2020
001
Effluent
Flow, in conduit or thru
05/31/20
Continuous
mgd
4
4.45
11.2
Monthly Average
Proceed to NOV
treatment plant
Exceeded
08-2020
001
Effluent
Flow, in conduit or thru
08/31/20
Continuous
mgd
4
4.11
2.7
Monthly Average
Proceed to NOD
treatment plant
Exceeded
02 - 2021
001
Effluent
Flow, in conduit or thru
02/28/21
Continuous
mgd
4
4.54
13.5
Monthly Average
Proceed to NOV
treatment plant
Exceeded
03-2021
001
Effluent
Flow, in conduit or thru
03/31/21
Continuous
mgd
4
4.19
4.8
Monthly Average
Proceed to NOV
treatment plant
Exceeded
09-2018
001
Effluent
Mercury, Total (as Hg) -
09/07/18
Monthly
ng/I
27
28.4
5.2
Daily Maximum
No Action, BPJ
Concentration
Exceeded
09 - 2018
001
Effluent
Mercury, Total (as Hg) -
09/30/18
Monthly
ng/I
27
28.4
5.2
Monthly Average
No Action, BPJ
Concentration
Exceeded
04 - 2021
001
Effluent
Nitrogen, Ammonia Total (as
04/17/21
5 X week
mg/I
6
9.35
55.9
Weekly Average
Proceed to
N) - Concentration
Exceeded
Enforcement Case

MONITORING REPORT(MR) VIOLATIONS for:
Report Date: 08/24/2� Page 2 of 3
Permit: NCO031836
MRS Betweel 8 - 2018 and 8 - 2023
Region: %
Violation Category:% Program Category: %
Facility Name: %
Param Nam(%
County: %
Subbasin: % Violation Action: %
Major Minor: %
PERMIT: NCO031836
FACILITY: City of Statesville -Fourth Creek WWTP
COUNTY: Iredell REGION: Mooresville
Limit Violation
MONITORING
VIOLATION
UNIT OF CALCULATED %
REPORT OUTFALL
LOCATION PARAMETER
DATE FREQUENCY
MEASURE LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
04 - 2021
001
Effluent
Nitrogen, Ammonia Total (as
04/30/21
5 X week
mg/I
2
5.16
157.8
Monthly Average
Proceed to
N) - Concentration
Exceeded
Enforcement Case
04 - 2022
001
Effluent
Nitrogen, Ammonia Total (as
04/30/22
5 X week
mg/I
2
2.51
25.4
Monthly Average
Proceed to
N) - Concentration
Exceeded
Enforcement Case
05 - 2022
001
Effluent
Nitrogen, Ammonia Total (as
05/31 /22
5 X week
mg/I
2
2.17
8.7
Monthly Average
Proceed to
N) - Concentration
Exceeded
Enforcement Case
Other Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
OUTFALL
LOCATION
PARAMETER
FREQUENCY
LIMIT
VIOLATION TYPE
VIOLATION ACTION
REPORT
DATE MEASURE
VALUE Over
01 -2021
01/11/21
Aquatic toxicity permit
Proceed to NOV
limit violation
01 -2022
01/24/22
Aquatic toxicity permit
Proceed to NOD
limit violation
Reporting Violation
MONITORING
VIOLATION UNIT OF
CALCULATED %
REPORT WELL LOCATION
PARAMETER DATE FREQUENCY MEASURE
LIMIT VALUE Over VIOLATION TYPE
VIOLATION ACTION
11 -2018
01/30/19
Late/Missing GW-59
None
03-2019
05/31/19
Late/Missing GW-59
None
07-2019
09/30/19
Late/Missing GW-59
None
11 -2019
01/30/20
Late/Missing GW-59
None
03-2020
05/31/20
Late/Missing GW-59
None
07-2020
09/30/20
Late/Missing GW-59
None
11 -2020
01/30/21
Late/Missing GW-59
None
03-2021
05/31/21
Late/Missing GW-59
None
07-2021
09/30/21
Late/Missing GW-59
None

MONITORING REPORT(MR) VIOLATIONS for:
Permit: NCO031836 MRS Betweel 8 - 2018 and 8 - 2023 Region: %
Facility Name: % Param Nam(% County: %
Major Minor: %
Report Date: 08/24/22 Page 3 of 3
Violation Category:% Program Category: 07
1a
Subbasin: % Violation Action:
PERMIT: NCO031836
FACILITY: City of Statesville -Fourth Creek WWTP
COUNTY: Iredell REGION: Mooresville
Reporting Violation
MONITORING
VIOLATION UNIT OF
CALCULATED %
REPORT WELL
LOCATION PARAMETER DATE FREQUENCY MEASURE
LIMIT VALUE Over VIOLATION TYPE VIOLATION ACTION
11 -2021
01/30/22
Late/Missing GW-59
None
03-2022
05/31/22
Late/Missing GW-59
None
07-2022
09/30/22
Late/Missing GW-59
None
11 -2022
01/30/23
Late/Missing GW-59
None
03-2023
05/31/23
Late/Missing GW-59
None

Whole Effluent Toxicity Testing and Self Monitoring Summary
Star WWTP
NCO058548/001
County: Montgomery
Ceri7dPF
Begin:
10/1/2021 chr lim: 90%
+ NonComp: Single
J
F M
A
M
2019
Pass
- -
Fail
>100
2020
Pass
- -
Pass
-
2021
Pass
- -
Pass
-
2022
Pass
- -
Fail
>100
2023
Pass
- -
Pass
-
Statesville Fourth
Creek WWTP
NCO031836/001
County: Iredell
Ceri7dPF
Begin:
3/1/2019 chrlim: flow>3.6M
NonComp: Single
J
F M
A
M
2019
Pass
- -
Pass
-
2020
Pass
- -
Pass
-
2021
Fail
>90 (s) >90 (s) >90 (s) >90 (s)
Pass >90
Pass
2022
INVALID (Pass)
Pass -
Pass
-
2023
Pass
- -
>100 Pass
-
Statesville Third Creek
WWTP
NCO020591/001
County: Iredell
Ceri7dPF
Begin:
2/1/2020 chr lim: 4 MGD @ 39
NonComp: Single
J
F M
A
M
2019
Pass
- -
Pass
-
2020
Pass
- -
Pass
-
2021
Pass>82
Pass >82 Pass>82
Pass >82
Pass
2022
Pass
- -
Pass
-
2023
Pass >82
Pass >82 -
Pass >82
-
Stepan Company - Wilmington Facility NC0001112/002
County: New Hanover
Fthd24PF
Begin:
4/1/2018 24hr ac p/f lim: 90%f
+ NonComp: Single
J
F M
A
M
2019
-
Pass -
-
Pass
2019
-
Pass -
-
Pass
2020
-
Pass -
-
Pass
2020
-
Pass -
-
Pass
2021
-
Pass -
-
Pass
2021
-
Pass -
-
Pass
2022
-
Pass -
-
Pass
2022
-
Pass -
-
Pass
2023
-
Pass -
-
Pass
2023
-
Pass -
-
Pass
Region:
FRO
Basin:
CPF10
Jan Apr Jul Oct
SOC JOC:
70,10: 0.0
PF: 0.60
IWC: 100
Freq: Q
J
J
A
S
O
N
>100
Fail
>100
82.2(F)
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
>100
Pass
-
-
Pass
-
Region:
MRO
Basin:
YAD06
Jan Apr Jul Oct
SOC JOC:
7Q10: 11.0
PF: 6.0
IWC: 36.0
Freq: Q
J
J
A
S
O
N
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass >90
Pass
-
Pass
-
-
Pass
-
Pass >100 Pass >100 Pass
>100
Pass
-
-
-
Region:
MRO
Basin:
YAD06
Jan Apr Jul Oct
SOC JOC:
7Q10: 9.8
PF: 6.0
IWC: 39
Freq: Q
I
I
A
S
O
N
-
Pass
-
-
Pass
-
-
Fail
Fail
>82
Pass
-
-
Pass >82
Pass
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass >82
-
-
-
-
Region:
WIRO
Basin:
CPF17
Feb May Aug Nov
SOC JOC:
7Q10: Tidal
PF: 1.25
IWC: NA
Freq: Q
J
J
A
S
O
N
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
-
-
Pass
C
C
>100 Pass
G
C
Leeend: P= Fathead minnow (Pimohales Dromelas). H=No Flow (facilitv is active). s = Solit test between Certified Labs Page 101 of 115

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 1 2 u 3 I NCO031836 111 121 23/03/10 I17 18 LC] I 19 I s I 20L]
21111I I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I r6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
67
2.0 701d I 71 I„ I 72 I r., I 71 I 74 79 I I I I I I I80
L—I ty L-1 I I
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)
09:20AM 23/03/10
19/03/01
Fourth Creek WWTP
693 Bell Farm Rd
Exit Time/Date
Permit Expiration Date
Statesville NC 28687
01:OOPM 23/03/10
23/03/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Kenneth Andrew Galloway/ORC//
Stephen E Littlejohn///
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Ron Smith,PO Box 1111 Statesville NC 286871111//704-878-3584/
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: Facility Site Review Effluent/Receiving Wate
Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Wes Bell DWR/MRO WQ/704-663-1699 Ext.2192/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
Andrew Pitner DWR/MRO WQ/704-663-1699 Ext.2180/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type
NCO031836 I11 12I 23/03/10 117 18 i c i
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page#

Permit: NCO031836 Owner -Facility: Fourth Creek WWTP
Inspection Date: 03/10/2023 Inspection Type: Compliance Evaluation
Permit
Yes
No
NA
NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
0
❑
❑
❑
application?
Is the facility as described in the permit?
0
❑
❑
❑
# Are there any special conditions for the permit?
M
❑
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the inspector granted access to all areas for inspection?
0
❑
❑
❑
Comment: The City implements a Division -approved Industrial Pretreatment Program.
The Division received the City's permit renewal package on 9/20/2022.
The last compliance evaluation inspection at this facility was performed by DWR staff
on 1 /28/2021.
Record Keeping
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain -of -custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users and DWQ?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified
operator on each shift?
Is the ORC visitation log available and current?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility
classification?
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year's Annual Report on file for review?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
■ ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
❑ ❑ ❑ ■
Page# 3

Permit: NCO031836
Inspection Date: 03/10/2023
Owner -Facility: Fourth Creek WWTP
Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Comment: The records reviewed durinq the inspection were organized and well maintained.
Effluent permit limit violations were reported in April 2022 (ammonia — monthly
average), May 2022 (ammonia — monthly average) and July 2022 (copper — daily
maximum). The Division has separately addressed these limit violations through the
issuances of either a Notice of Violation (NOV) or NOV/civil penalty assessment. The
Permittee must ensure that the annual WWTP performance report is submitted no later
than sixty (60) days following the selected time period (calendar or fiscal year).
Laboratory
Yes
No
NA
NE
Are field parameters performed by certified personnel or laboratory?
■
❑
❑
❑
Are all other parameters(excluding field parameters) performed by a certified lab?
0
❑
❑
❑
# Is the facility using a contract lab?
0
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
■
❑
❑
❑
degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
❑
❑
❑
■
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
❑
❑
❑
■
Comment: Influent and effluent (including field) analyses are performed under the
City's on -site
certified laboratory (Certification #181). Pace Analytical Services, Meritech Labs and
Statesville Analytical have all been contracted to provide analytical support.
Influent Sampling
Yes
No
NA
NE
# Is composite sampling flow proportional?
0
❑
❑
❑
Is sample collected above side streams?
0
❑
❑
❑
Is proper volume collected?
■
❑
❑
❑
Is the tubing clean?
■
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
0
❑
❑
❑
degrees Celsius)?
Is sampling performed according to the permit?
0
❑
❑
❑
Comment: The subject permit requires influent BOD and TSS composite samples.
The sampler tubing should be cleaned and/or replaced within the near future.
The ORC and staff must ensure that the maximum amount of flow in between
composite samples (aliquots) does not exceed 1/24th of the total expected flow for
that
sampling day.
Effluent Sampling
Yes
No
NA NE
Is composite sampling flow proportional?
0
❑
❑
❑
Is sample collected below all treatment units?
M
❑
❑
❑
Is proper volume collected?
0
❑
❑
❑
Is the tubing clean?
0
❑
❑
❑
Page# 4

Permit: NCO031836
Inspection Date: 03/10/2023
Owner -Facility: Fourth Creek WWTP
Inspection Type: Compliance Evaluation
Effluent Sampling
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
representative)?
Comment: The subject permit requires composite and grab effluent samples.
Upstream / Downstream Sampling
Is the facility sampling performed as required by the permit (frequency, sampling type,
and sampling location)?
Yes No NA NE
■ ❑ ❑ ❑
■ ❑ ❑ ❑
Yes No NA NE
❑ ❑ ❑
Comment: The Division has conditionally waived the instream monitoring requirements due to the
City's participation in the Yadkin -Pee Dee River Basin Association.
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: The wastewater treatment facilitv appeared to be properly operated and well
maintained. The facility staff incorporate a comprehensive process control program
with all measurements being documented and maintained on -site. Detailed operation
& maintenance records are also maintained on -site.
The facility is also equipped with a SCADA system to assist the wastewater staff in
treatment plant operations.
Bar Screens
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Is disposal of screening in compliance?
Is the unit in good condition?
Comment: Screenings are disposed at a permitted landfill.
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?
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Yes No NA NE
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
Page# 5

Permit: NCO031836
Inspection Date: 03/10/2023
Owner -Facility: Fourth Creek WWTP
Inspection Type: Compliance Evaluation
Pump Station - Influent
Yes
No
NA
NE
Are all pumps operable?
0
❑
❑
❑
Are float controls operable?
0
❑
❑
❑
Is SCADA telemetry available and operational?
0
❑
❑
❑
Is audible and visual alarm available and operational?
❑
❑
0
❑
Comment:
Aeration Basins
Yes
No
NA NE
Mode of operation
Ext. Air
Type of aeration system
Surface
Is the basin free of dead spots?
0
❑
❑
❑
Are surface aerators and mixers operational?
■
❑
❑
❑
Are the diffusers operational?
❑
❑
0
❑
Is the foam the proper color for the treatment process?
0
❑
❑
❑
Does the foam cover less than 25% of the basin's surface?
0
❑
❑
❑
Is the DO level acceptable?
0
❑
❑
❑
Is the DO level acceptable?(1.0 to 3.0 mg/1)
0
❑
❑
❑
Comment: Both aeration basin trains were in service. Each aeration basin is equipped with six
platform aerators.
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?
0
❑
❑
❑
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?
0
❑
❑
❑
Is the site free of excessive floating sludge?
■
❑
❑
❑
Is the drive unit operational?
0
❑
❑
❑
Is the return rate acceptable (low turbulence)?
0
❑
❑
❑
Is the overflow clear of excessive solids/pin floc?
0
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth)
0
❑
❑
❑
Comment: All three secondary clarifiers were in service.
Page# 6

Permit: NCO031836
Inspection Date: 03/10/2023
Owner -Facility: Fourth Creek WWTP
Inspection Type: Compliance Evaluation
Pumps-RAS-WAS
Yes
No
NA
NE
Are pumps in place?
0
❑
❑
❑
Are pumps operational?
0
❑
❑
❑
Are there adequate spare parts and supplies on site?
■
❑
❑
❑
Comment:
Disinfection -Liquid
Yes
No
NA
NE
Is there adequate reserve supply of disinfectant?
■
❑
❑
❑
(Sodium Hypochlorite) Is pump feed system operational?
0
❑
❑
❑
Is bulk storage tank containment area adequate? (free of leaks/open drains)
0
❑
❑
❑
Is the level of chlorine residual acceptable?
0
❑
❑
❑
Is the contact chamber free of growth, or sludge buildup?
■
❑
❑
❑
Is there chlorine residual prior to de -chlorination?
0
❑
❑
❑
Comment:
De -chlorination
Yes
No
NA
NE
Type of system ?
Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
M
❑
❑
❑
Is storage appropriate for cylinders?
❑
❑
0
❑
# Is de -chlorination substance stored away from chlorine containers?
0
❑
❑
❑
Are the tablets the proper size and type?
❑
❑
■
❑
Comment: Aqueous sodium bisulfite is used for dechlorination.
Are tablet de -chlorinators operational?
❑
❑
0
❑
Number of tubes in use?
Comment:
Flow Measurement - Effluent
Yes
No
NA NE
# Is flow meter used for reporting?
0
❑
❑
❑
Is flow meter calibrated annually?
0
❑
❑
❑
Is the flow meter operational?
0
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
0
❑
Comment: The flow meter is calibrated twice per year and was last calibrated on 10/26/2022 by
Diversified Integration, Inc.
Page# 7

Permit: NCO031836 Owner -Facility: Fourth Creek WWTP
Inspection Date: 03/10/2023 Inspection Type: Compliance Evaluation
Effluent Pipe
Yes
No
NA
NE
Is right of way to the outfall properly maintained?
0
❑
❑
❑
Are the receiving water free of foam other than trace amounts and other debris?
❑
❑
❑
If effluent (diffuser pipes are required) are they operating properly?
❑
❑
■
❑
Comment: The effluent appeared clear with trace suspended solids and no foam.
Aerobic Digester
Yes
No
NA
NE
Is the capacity adequate?
■
❑
❑
❑
Is the mixing adequate?
0
❑
❑
❑
Is the site free of excessive foaming in the tank?
0
❑
❑
❑
# Is the odor acceptable?
0
❑
❑
❑
# Is tankage available for properly waste sludge?
■
❑
❑
❑
Comment: The aerobic digester is equipped with three platform aerators.
Solids Handling Equipment
Yes
No
NA
NE
Is the equipment operational?
0
❑
❑
❑
Is the chemical feed equipment operational?
■
❑
❑
❑
Is storage adequate?
0
❑
❑
❑
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
0
❑
❑
❑
Is the site free of sludge buildup on belts and/or rollers of filter press?
■
❑
❑
❑
Is the site free of excessive moisture in belt filter press sludge cake?
■
❑
❑
❑
The facility has an approved sludge management plan?
0
❑
❑
❑
Comment: The belt filter press was operational and in service. Dewatered bio-solids are either
lime stabilized and distributed to the public under Permit No. WQ0006245 or land
applied (Class B product) under Permit No. WQ0014543.
Standby Power
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Is there an emergency agreement with a fuel vendor for extended run on back-up
power?
Is the generator fuel level monitored?
Yes No NA NE
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
Page# 8

Permit: NCO031836
Inspection Date: 03/10/2023
Standby Power
Owner -Facility: Fourth Creek WWTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Comment: The backup generator is tested under load every ten (10) days and serviced quarterly
by Power Generation & Control. The City also participates in a Load Management
Program.
Page#

NH3/TRC WLA Calculations
City of Statesville - Fourth Creek WWTP
PermitNo. NCO031836
Prepared By: Gary Perlmutter
Enter Design Flow (MGD): 6.0
Enter s7Q10 (cfs): 7.5
Enter w7Q10 (cfs): 11.3
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS)
7.5
s7Q10 (CFS)
7.5
DESIGN FLOW (MGD)
6
DESIGN FLOW (MGD)
6
DESIGN FLOW (CFS)
9.3
DESIGN FLOW (CFS)
9.3
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
Upstream Bkgd (ug/1)
0
Upstream Bkgd (mg/1)
0.22
IWC (%)
55.36
IWC (%)
55.36
Allowable Conc. (ug/1)
31
Allowable Conc. (mg/1)
1.6
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
11.3
Monthly Average Limit:
200/900ml DESIGN FLOW (MGD)
6
(If DF >331; Monitor)
DESIGN FLOW (CFS)
9.3
(If DF<331; Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF)
1.81 Upstream Bkgd (mg/1)
0.22
IWC (%)
45.15
Allowable Conc. (mg/1)
3.7
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/I, 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)

Waypoint�.
ANALYTICAL
114 OAKMONT DRIVE
GREENVILLE, NC 27858
STATESVILLE (FOURTH CREEK WWTP)
CITY OF STATESVILLE
ATTN: ANDY SMITH
P.O. BOX 1111
STATESVILLE, NC 28677
Drinking Water I➢: 37715
PF 0flEg052) Y�6-'6208
FAX [phone]
ID#: 1197
DATE COLLECTED: 06/14/23
DATE REPORTED : 06/20/23
REVIEWED BY:
Upstream Downstream
Analysis
Method
PARAMETERS
Date Analyst
Code
Total Hardness, mg/l
36 36
06/19/23 ADR
2340C-11

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Waypoint.
ANALYTICAL
GREENVILLE, N.C. 27858
STATESVILLE (FOURTH CREEK WWTP)
CITY OF STATESVILLE
ATTN: ANDY SMITH
P.O. BOX 1111
STATESVILLE, NC 28677
Drinking Water ID: 37715
ID#: 1197
DATE COLLECTED: 03/22/23
DATE REPORTED : 03/29/23
REVIEWED BY:
Upstream Downstream Analysis Method
PARAMETERS Date Analyst Code
Total Hardness, mg/I 39 39 03/27/23 BLV 2340C-11

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114 OAKMONT DRIVE
GREENVILLE, N.C. 27858
STATESVILLE (FOURTH CREEK WWTP)
CITY OF STATESVILLE
ATTN: ANDY SMITH
P.O. BOX 1111
STATESVILLE, NC 28677
Drinking Water ID: 37715
Wastewater ID: 10
PHONE [phone]
FAX [phone]
ID#: 1197
DATE COLLECTED: 12/14/22
DATE REPORTED : 12/21/22
REVIEWED BY:
Upstream Downstream
Analysis
Method
PARAMETERS
Date Analyst
Code
Total Hardness, mg/l
52 60
12/19/22 HMV
2340C•11

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114 OAKMONT DRIVE
GREENVILLE, N.C. 27858
STATESVILLE (FOURTH CREEK WWTP)
CITY OF STATESVILLE
ATTN: ANDY SMITH
P.O. BOX 1111
STATESVILLE, NC 28677
Drinking Water ID: 37715
Wastewater ID: 10
PHONE [phone]
FAX [phone]
ID#: 1197
DATE COLLECTED: 09/28/22
DATE REPORTED : 10/05/22
REVIEWED BY:
Upstream Downstream Analysis Method
PARAMETERS Date Analyst Code
Total Hardness, mg/1 51 53 10/03/22 JDJ 234OC-11

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[External] RE: Fourth Creek data check
Ken Galloway <[e-mail]>
Fri 1/5/2024 12:34 PM
To:Perlmutter, Gary <[e-mail]>
Cc:Andy Smith <[e-mail]>
3 attachments (2 MB)
D00010524-01052024120544.pdf; D00010524-01052024115719.pdf; D00010524-01052024113157.pdf;
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report
Message button located on your Outlook menu bar on the Home tab.
Gary,
See below for responses in red.
I have updated the DMR to reflect the less thans for 7/22.
1 have attached the results pages from the lab for the parameters in question.
Thank you,
Ken Galloway
Plant Supervisor
Fourth Creek WWTP
P.O. Box 1111
City of Statesville
704-878-3438
0.
CITY of ��,
tat e
WATER RESOURCES
From: Andy Smith <[e-mail]>
Sent: Tuesday, January 2, 2024 9:31 AM
To: Ken Galloway <[e-mail]>
Subject: FW: Fourth Creek data check
From: Perlmutter, Gary <[e-mail]>
Sent: Tuesday, January 2, 2024 9:15 AM
To: Andy Smith <asmith(@statesvillenc.net>
Subject: Fourth Creek data check
You don't often get email from [e-mail]. Learn why this is important
[NOTICE: This message originated outside of the City of Statesville mail system -- DO NOT
CLICK on links or open attachments unless you are sure the content is safe.]
Good morning Andy,

As you may know, I am working on the Fourth Creek WWTP NPDES permit renewal. In reviewing the
effluent data, I found some seemingly outlier data I need verified. These are:
• Cadmium = 39 ug/L on 4/15/2021
• Chromium = 39 ug/L
• Copper = 35 ug/L on 7/1/2022 and 202 ug/L on 7/18/2023
• Copper = 35 ug/L on 7/1/22 and 202 ug/L on 7/18/23
• Nickel = 78 ug/L on 4/15/2021
• Nickel = 78 ug/L on 4/15/2021
• Selenium = 10 ug/L on 7/12/2022
• Selenium should have been entered as < 10 ug/L
• Silver = 5 ug/L on 7/12/2022
• Silver should have been entered as < 5 ug/L
Thanks for your help and happy new year,
Gary
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an
authorized state official.
Pursuant to NCGS Chapter 132, Public Records, this electronic mail message and any attachments
hereto, as well as any electronic mail messages that may be sent in response to it may be considered
public record and as such are subject to request and review by anyone at any time. If you are not the
intended recipient of this message, please delete this message and inform the sender.

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Project Information Table 2. Parameters of Concern
❑ CHECK IF HQW OR ORW WQS Name WQS Type Chronic Modifier
Facility Name
WWTP/WTP Class
NPDES Permit
Outfal I
Flow, Qw (MGD)
Receiving Stream
HUC Number
Stream Class
Statesville - Fourth Creek WWTP
Grade IV
NCO031836
001
6.000
Fourth Creek
03010104
C
❑ Apply WS Hardness WQC
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1 Q10s (cfs)
7.50
11.30
16.00
46.50
6.23
Effluent Hardness
Upstream Hardness
Combined Hardness Chronic
- - - - - - - - - - - - -
Combined Hardness Acute
46.5 mg/L (Avg)
44.5 mg/L (Avg)
45.61 mg/L
- - - - - - - - - - - - - - - - - - - - - -
45.7 mg/L
Data Source(s)
Permittee-submitted DMRs and PPAs.
❑ CHECK TO APPLY MODEL
Par01
Par02
Par03
Par04
Par05
Par06E
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Par23
Par24
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
0.9293
FW
5.4847
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
192.6417
FW
1483.3668
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
13.1730
FW
18.4870
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
5.7660
FW
148.2929
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
na/L
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
61.9174
FW
558.4052
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
0.8365
ug/L
Zinc
Aquatic Life
NC
210.9282
FW
209.5695
ug/L
Chloroform
Aquatic Life
NC
2000
FW
pg/L
Toluene
Aquatic Life
NC
11
FW
pg/L
Bis(2-ethylhexyl) phthalate
Human Health
C
0.37
HH
pg/L
31836 Freshwater RPA 2023, input
2/26/2024

REASONABLE POTENTIAL ANALYSIS
H1
Date
1 6/11/2019
2 9/12/2019
3 10/15/2019
4 12/2/2019
5 1 /16/2020
6 3/24/2020
7 6/3/2020
8 9/2/2020
9 12/3/2020
10 3/3/2021
11 4/15/2021
12 6/1/2021
13 9/1/2021
14 12/1 /2021
15 3/1/2022
16 6/1/2022
17 7/12/2022
18 9/1/2022
19 12/5/2022
20 3/13/2023
21 6/1 /2023
22 7/18/2023
23 9/1/2023
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
Effluent Hardness I
Data
BDL=1/2DL
Results
55.7
55.7
Std Dev.
54.9
54.9
Mean
52
52
C.V.
46.9
46.9
n
48
48
10th Per value
27.6
27.6
Average Value
58
58
Max. Value
21.1
21.1
21.2
21.2
41.9
41.9
44
44
40.9
40.9
34.1
34.1
59
59
47.5
47.5
40
40
44
44
78.4
78.4
52.9
52.9
60.6
60.6
48.9
48.9
44
44
48
48
Use "PASTE SPECIAL-
IH2
Values" then "COPY".
Maximum data points
= 58
1
Date Data
6/14/2023
12.8850
46.5043
2
3/29/2023
0.2771
3
12/14/2022
23
4
9/28/2022
28.90 mg/L
5
46.50 mg/L
6
78.40 mg/L
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
Upstream Hardness
BDL=1/2DL
Results
36
36
Std Dev.
39
39
Mean
52
52
C.V. (default)
51
51
n
10th Per value
Average Value
Max. Value
Use "PASTE SPECIAL -
Values" then "COPY".
Maximum data points
= 58
8.1854
44.5000
0.6000
4
36.90 mg/L
44.50 mg/L
52.00 mg/L
31836 Freshwater RPA 2023, data
-2- 2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par01 & Par02
Par03
Use "PASTE SPECIAL -
Arsenic Values" then "COPY".
Maximum data points
= 58
Date
Data
BDL=1/2DL
Results
1
6/10/2019
<
2.5
1.25
Std Dev.
2
9/9/2019
<
2
1
Mean
3
10/15/2019
<
10
5
C.V.
4
12/9/2019
<
2
1
n
5
1 /16/2020
<
10
5
6
3/9/2020
<
2
1
Mult Factor =
7
6/8/2020
<
2
1
Max. Value
8
9/14/2020
<
2
1
Max. Pred Cw
9
12/7/2020
<
2
1
10
3/15/2021
<
2.5
1.25
11
4/15/2021
<
10
5
12
6/14/2021
2.5
2.5
13
9/13/2021
<
5
2.5
14
12/6/2021
<
2.5
1.25
15
3/7/2022
<
2
1
16
6/6/2022
<
2
1
17
7/12/2022
<
10
5
18
9/12/2022
<
2
1
19
12/12/2022
<
2
1
20
3/13/2023
<
2.5
1.25
21
6/19/2023
<
2.5
1.25
22
7/18/2023
<
10
5
23
9/11 /2023
<
2.5
1.25
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
1
Date Data
1/15/2020 <
1.6345
2.0652
2
4/14/2021 <
0.7915
3
7/11/2022 <
23
4
5
1.40
6
5.0 ug/L
7
7.0 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
Use "PASTE SPECIAL -
Beryllium Values" then "COPY".
Maximum data points
= 58
BDL=1/2DL Results
5 2.5 Std Dev. 0.0000
5 2.5 Mean 2.5000
5 2.5 C.V. (default) 0.6000
n 3
Mult Factor = 3.00
Max. Value 2.50 ug/L
Max. Pred Cw 7.50 ug/L
31836 Freshwater RPA 2023, data
-3- 2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par04
Cadmium
Use "PASTE SPECIAL -
Values" then "COPY".
Par05
Maximum data points
= 58
Date
Data
BDL=1/2DL
Results
1
6/10/2019
<
0.4
0.2
Std Dev.
0.3442
1
2
9/9/2019
<
0.4
0.2
Mean
0.3793
2
3
10/15/2019
<
2
1
C.V.
0.9075
3
4
12/9/2019
<
0.4
0.2
n
23
4
5
1 /16/2020
<
2
1
5
6
3/9/2020
<
0.4
0.2
Mult Factor =
1.45
6
7
6/8/2020
<
0.4
0.2
Max. Value
1.000 ug/L
7
8
9/14/2020
<
0.4
0.2
Max. Pred Cw
1.450 ug/L
8
9
12/7/2020
<
1
0.5
9
10
3/15/2021
<
0.5
0.25
10
11
4/15/2021
<
2
1
11
12
6/14/2021
<
0.4
0.2
12
13
9/13/2021
<
0.5
0.25
13
14
12/6/2021
<
0.5
0.25
14
15
3/7/2022
<
0.5
0.25
15
16
6/6/2022
<
0.15
0.075
16
17
7/12/2022
<
2
1
17
18
9/12/2022
<
0.15
0.075
18
19
12/12/2022
<
0.15
0.075
19
20
3/13/2023
<
0.4
0.2
20
21
6/19/2023
<
0.4
0.2
21
22
7/18/2023
<
2
1
22
23
9/11 /2023
<
0.4
0.2
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
Date Data
Chlorides
BDL=1/2DL Results
Std Dev
Mean
C.V.
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL -
Values" then "COPY".
Maximum data points = 58
NO DATA
NO DATA
NO DATA
0
N/A
N/A mg/L
N/A mg/L
31836 Freshwater RPA 2023, data
-4- 2/26/2024

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
1/16/2020
NO DATA
NO DATA
2
4/15/2021 <
NO DATA
3
7/12/202
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.
10 5
Mean
11 11
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL -
Values" then "COPY".
Maximum data points
= 58
3.2146
8.6667
0.6000
3
3.00
11.0 ug/L
33.0 ug/L
31836 Freshwater RPA 2023, data
-5- 2/26/2024

REASONABLE POTENTIAL ANALYSIS
31836 Freshwater RPA 2023, data
2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par10
Date Data
1 6/10/2019 <
2 9/9/2019 <
3 10/15/2019 <
4 12/9/2019 <
5 1 /16/2020 <
6 3/9/2020 <
7 6/8/2020 <
8 9/14/2020
9 12/7/2020
10 3/15/2021 <
11 4/15/2021
12 6/14/2021 <
13 9/13/2021 <
14 12/6/2021 <
15 3/7/2022 <
16 6/6/2022 <
17 7/12/2022 <
18 9/12/2022 <
19 12/12/2022 <
20 3/13/2023 <
21 6/19/2023 <
22 7/18/2023 <
23 9/11 /2023 <
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
BDL=1/2DL
Results
2
1
Std Dev.
2
1
Mean
5
2.5
C.V.
2
1
n
5
2.5
2
1
Mult Factor =
2
1
Max. Value
2.3
2.3
Max. Pred Cw
2
2
2
1
39
39
2
1
2
1
2.9
1.45
2
1
2
1
5
2.5
2
1
2
1
2
1
2
1
5
2.5
2
1
Pall
Use "PASTE SPECIAL -
Values" then "COPY" .
Maximum data points
= 58
7.8650
3.0326
2.5935
23
1.99
39.0 lag/L
77.6 lag/L
Use "PASTE SPECIAL -
Copper Values" then "COPY".
Maximum data points
= 58
Date
Data
BDL=1/2DL
Results
1
12/1 /2021
4.2
4.2
Std Dev.
2
12/6/2021
4.3
4.3
Mean
3
1/13/2022
5.8
5.8
C.V.
4
2/3/2022
4.5
4.5
n
5
3/1 /2022
4
4
6
3/7/2022
3.7
3.7
Mult Factor =
7
4/1 /2022
3
3
Max. Value
8
5/17/2022
2
2
Max. Pred Cw
9
6/1 /2022
2
2
10
6/6/2022
2
2
11
7/1 /2022
35
35
12
7/12/2022
5
5
13
8/3/2022
5
5
14
8/24/2022
6
6
15
8/25/2022
6
6
16
8/26/2022
6
6
17
9/1 /2022
3
3
18
9/12/2022
3
3
19
10/3/2022
4
4
20
11 /1 /2022
2
2
21
12/5/2022
2
2
22
12/12/2022
2
2
23
1 /3/2023
2
2
24
2/1 /2023
3.3
3.3
25
3/1 /2023
1.9
1.9
26
3/13/2023
2.98
2.98
27
4/3/2023
2.5
2.5
28
5/1 /2023
3.2
3.2
29
6/1 /2023
2.1
2.1
30
6/19/2023
2
2
31
7/3/2023
2
2
32
7/18/2023
202
202
33
8/1 /2023
2.1
2.1
34
9/1 /2023
2.3
2.3
35
9/11/2023
3.21
3.21
36
10/2/2023
2.1
2.1
37
11 /1 /2023
2.1
2.1
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
32.9741
9.4673
3.4829
37
1.43
202.00 ug/L
288.86 ug/L
31836 Freshwater RPA 2023, data
-7- 2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par12
Date Data
1 6/10/2019 <
2 9/9/2019 <
3 10/15/2019 <
4 12/9/2019 <
5 1 /16/2020 <
6 3/9/2020 <
7 6/8/2020 <
8 9/14/2020 <
9 12/7/2020 <
10 3/15/2021 <
11 4/15/2021 <
12 6/14/2021 <
13 9/13/2021 <
14 12/6/2021 <
15 3/7/2022
16 6/6/2022 <
17 7/12/2022 <
18 9/12/2022 <
19 12/12/2022 <
20 3/13/2023 <
21 6/19/2023
22 7/18/2023 <
23 9/11 /2023
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
Par13
Use "PASTE SPECIAL-
Use "PASTE SPECIAL -
Cyanide
Values" then "COPY".
Fluoride
Values" then "COPY".
Maximum data points
Maximum data points
= 58
= 58
BDL=1/2DL
Results
Date Data
BDL=1/2DL Results
5 5
Std Dev.
0.0000
1
Std Dev.
NO DATA
5 5
Mean
5.00
2
Mean
NO DATA
5 5
C.V.
0.0000
3
C.V.
NO DATA
5 5
n
23
4
n
0
5 5
5
5 5
Mult Factor =
1.00
6
Mult Factor =
N/A
5 5
Max. Value
5.0 ug/L
7
Max. Value
N/A ug/L
5 5
Max. Pred Cw
5.0 ug/L
8
Max. Pred Cw
N/A ug/L
5 5
9
5 5
10
5 5
11
5 5
12
5 5
13
5 5
14
6 5
15
5 5
16
5 5
17
5 5
18
5 5
19
5 5
20
6 5
21
5 5
22
5 5
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
31836 Freshwater RPA 2023, data
-8- 2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par14
Date
1 6/10/2019 <
2 9/9/2019 <
3 10/15/2019 <
4 12/9/2019 <
5 1 /16/2020 <
6 3/9/2020 <
7 6/8/2020 <
8 9/14/2020 <
9 12/7/2020
10 3/15/2021 <
11 4/15/2021 <
12 6/14/2021 <
13 9/13/2021 <
14 12/6/2021 <
15 3/7/2022 <
16 6/6/2022 <
17 7/12/2022 <
18 9/12/2022 <
19 12/12/2022 <
20 3/13/2023 <
21 6/19/2023 <
22 7/18/2023 <
23 9/11 /2023 <
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
3
1.5
Std Dev.
1.7269
1
Std Dev.
NO DATA
3
1.5
Mean
2.1022
2
Mean
NO DATA
10
5
C.V.
0.8215
3
C.V.
NO DATA
3
1.5
n
23
4
n
0
10
5
5
3
1.5
Mult Factor =
1.41
6
Mult Factor =
N/A
3
1.5
Max. Value
5.000 ug/L
7
Max. Value
N/A ng/L
3
1.5
Max. Pred Cw
7.050 ug/L
8
Max. Pred Cw
N/A ng/L
4.1
4.1
9
2
1
10
10
5
11
2
1
12
2
1
13
2
1
14
2
1
15
0.5
0.25
16
10
5
17
0.5
0.25
18
0.5
0.25
19
3
1.5
20
3
1.5
21
10
5
22
3
1.5
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
31836 Freshwater RPA 2023, data
-9- 2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par16
Date Data
1 6/10/2019 <
2 9/9/2019 <
3 12/9/2019 <
4 3/9/2020 <
5 6/8/2020 <
6 9/14/2020 <
7 12/7/2020 <
8 3/15/2021 <
9 6/14/2021 <
10 9/13/2021 <
11 12/6/2021
12 3/7/2022
13 6/6/2022
14 9/12/2022
15 12/12/2022 <
16 3/13/2023 <
17 6/19/2023 <
18 9/11 /2023
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.
1.6222
1
6/10/2019
2.37
2.37
Std Dev.
15.4701
10
5
Mean
3.0961
2
9/9/2019
3.78
3.78
Mean
7.6557
5
2.5
C.V.
0.5239
3
10/15/2019
<
10
5
C.V.
2.0207
5
2.5
n
18
4
12/9/2019
3.05
3.05
n
23
5
2.5
5
1/16/2020
<
10
5
2
1
Mult Factor =
1.36
6
3/9/2020
4.5
4.5
Mult Factor =
1.85
2
1
Max. Value
6.5 ug/L
7
6/8/2020
5
5
Max. Value
78.0 Ng/L
5
2.5
Max. Pred Cw
8.9 ug/L
8
9/14/2020
7.9
7.9
Max. Pred Cw
144.3 Ng/L
5
2.5
9
12/7/2020
4.1
4.1
5
2.5
10
3/15/2021
<
2
1
4.2
4.2
11
4/15/2021
78
78
3
3
12
6/14/2021
6
6
6
6
13
9/13/2021
7.7
7.7
3
3
14
12/6/2021
2.6
2.6
2
1
15
3/7/2022
5
5
5
2.5
16
6/6/2022
5
5
5
2.5
17
7/12/2022
10
10
6.53
6.53
18
9/12/2022
4
4
19
12/12/2022
2.6
2.6
20
3/13/2023
3.18
3.18
21
6/19/2023
2.17
2.17
22
7/18/2023
<
10
5
23
9/11/2023
3.13
3.13
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
-10-
31836 Freshwater RPA 2023, data
2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par19
Date Data
1 6/10/2019 <
2 9/9/2019 <
3 10/15/2019 <
4 12/9/2019 <
5 1 /16/2020 <
6 3/9/2020 <
7 6/8/2020 <
8 9/14/2020 <
9 12/7/2020 <
10 3/15/2021 <
11 4/15/2021 <
12 6/14/2021 <
13 9/13/2021 <
14 12/6/2021 <
15 3/7/2022 <
16 6/6/2022 <
17 7/12/2022 <
18 9/12/2022 <
19 12/12/2022 <
20 3/13/2023 <
21 6/19/2023 <
22 7/18/2023 <
23 9/11 /2023 <
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 -
Selenium Values" then "COPY" .
Maximum data points
= 58 Par20
BDL=1/2DL
Results
5
2.5
Std Dev.
1.8968
1
0.5
Mean
1.5652
10
5
C.V.
1.2118
1
0.5
n
23
10
5
1
0.5
Mult Factor =
1.58
1
0.5
Max. Value
5.0 ug/L
1
0.5
Max. Pred Cw
7.9 ug/L
1
0.5
1
0.5
10
5
1
0.5
1
0.5
1
0.5
1
0.5
1
0.5
10
5
1
0.5
1
0.5
1
0.5
1
0.5
10
5
1
0.5
Date Data
1 6/10/2019 <
2 9/9/2019 <
3 10/15/2019 <
4 12/9/2019 <
5 1/16/2020 <
6 3/9/2020 <
7 6/8/2020 <
8 9/14/2020 <
9 12/7/2020 <
10 3/15/2021 <
11 4/15/2021 <
12 6/14/2021 <
13 9/13/2021 <
14 12/6/2021 <
15 3/7/2022 <
16 6/6/2022 <
17 7/12/2022 <
18 9/12/2022 <
19 12/12/2022 <
20 3/13/2023 <
21 6/19/2023 <
22 7/18/2023 <
23 9/11/2023 <
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 -
Silver
Values" then "COPY".
Maximum data points
= 58
BDL=1/2DL
Results
0.5
0.25
Std Dev.
0.9399
0.5
0.25
Mean
0.7609
5
2.5
C.V.
1.2353
0.5
0.25
n
23
5
2.5
0.5
0.25
Mult Factor =
1.59
0.5
0.25
Max. Value
2.500 ug/L
0.5
0.25
Max. Pred Cw
3.975 ug/L
1
0.5
1
0.5
5
2.5
0.5
0.25
0.5
0.25
0.5
0.25
0.5
0.25
0.5
0.25
5
2.5
0.5
0.25
0.5
0.25
0.5
0.25
0.5
0.25
5
2.5
0.5
0.25
-11-
31836 Freshwater RPA 2023, data
2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par21
Date Data
1 6/10/2019
2 9/9/2019
3 10/15/2019
4 12/9/2019
5 1 /16/2020
6 3/9/2020
7 6/8/2020
8 9/14/2020
9 12/7/2020
10 3/15/2021
11 4/15/2021
12 6/14/2021
13 9/13/2021
14 12/6/2021
15 3/7/2022
16 6/6/2022
17 7/12/2022
18 9/12/2022
19 12/12/2022
20 3/13/2023
21 6/19/2023
22 7/18/2023
23 9/11 /2023
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
Zinc
BDL=1/2DL
Results
16
16
Std Dev.
71
71
Mean
77
77
C.V.
53
53
n
30
30
60
60
Mult Factor =
13
13
Max. Value
52
52
Max. Pred Cw
50
50
22
22
26
26
71
71
63
63
34
34
60
60
79
79
59
59
39
39
50
50
40
40
65
65
78
78
33
33
Use "PASTE SPECIAL-
Par22
Values" then "COPY".
Maximum data points
= 58
20.1939 1
49.6087 2
0.4071 3
23 4
5
1.21 6
79.0 ug/L 7
95.6 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
Chloroform
Date Data
BDL=1/2DL
Results
1 /22/2020 <
1 0.5
Std Dev.
4/20/2021
1.18 1.18
Mean
7/19/2022
1.73 1.73
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL -
Values" then "COPY".
Maximum data points
= 58
0.6161
1.1367
0.6000
3
3.00
1.730000 pg/L
5.190000 pg/L
-12-
31836 Freshwater RPA 2023, data
2/26/2024

REASONABLE POTENTIAL ANALYSIS
Par23 Par24
Use "PASTE SPECIAL -
Toluene Values" then "COPY".
Maximum data points
= 58
Date Data
1 1 /22/2020 <
2 4/20/2021
3 7/19/2022 <
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
BDL=1/2DL
Results
Date Data
1 0.5
Std Dev.
3.2909
1
1 /22/2020 <
6.2 6.2
Mean
2.4000
2
4/20/2021
1 0.5
C.V. (default)
0.6000
3
7/19/2022 <
n
3
4
5
Mult Factor =
3.00
6
Max. Value
6.200000 dig/L
7
Max. Pred Cw
18.600000 dig/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
Use "PASTE SPECIAL -
is (2-ethyl hexyl) phthalate
Values" then "COPY".
Maximum data points
= 58
BDL=1/2DL
Results
10 5
Std Dev.
3.5218
11.1 11.1
Mean
7.0333
10 5
C.V. (default)
0.6000
n
3
Mult Factor =
3.00
Max. Value
11.100000 pg/L
Max. Pred Cw
33.300000 pg/L
-13-
31836 Freshwater RPA 2023, data
2/26/2024

Statesville - Fourth Creek WWTP
NCO031836 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Qw (MGD) =
6.0000
WWTP/WTP Class: Grade IV
1 Q l 0S (cfs) =
6.23
IWC% @ 1 Q 10S =
59.8840953
7Q10S (cfs) =
7.50
IWC% @ 7Q10S =
55.35714286
7Q10W (cfs) =
11.30
IWC% @ 7Q10W
45.14563107
30Q2 (cfs) =
16.00
IWC% @ 30Q2 =
36.75889328
Avg. Stream Flow, QA (cfs) =
46.50
IW%C @ QA =
16.66666667
Receiving Stream: Fourth Creek HUC 03010104
Stream Class:
C
Outfall 001
Qw = 6 MGD
COMBINED HARDNESS (mg/L)
Acute = 45.7 mg/L
Chronic = 45.61 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
co
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
J
H
Chronic AcuteApplied
D
n # Det. Max Pred Cw Allowable Cw
Standard
Acute (FW): 567.8
Arsenic
C
150 FW(7Q10s) 340
ug/L
23 1
7.0
Chronic (FW)--- 271.0 --
--------------------------
No value >_ Allowable
Arsenic
C
10 HH/WS(Qavg)
ug/L
_Cw_
Chronic (HH) 60.0
No RP, Predicted Max < 50% of Allowable Cw - No
No value > Allowable Cw
Monitoring required
Acute: 108.54
Beryllium
NC
6.5 FW(7Q10s) 65
ug/L
3 0
7.50
Note: n < 9
C.V. (default)
Chronic: 11.74
No detects - no monitoring or limits required
Limited data set
NO DETECTS
Max MDL = 5
Acute: 9.159
Cadmium
NC
0.9293 FW(7Q10s) 5.4847
ug/L
23 0
1.450
--Chronic:-----1.679 --
--------------------------
No detects - no monitoring or limits required
NO DETECTS
Max MDL 2
Acute: NO WQS
Chlorides
NC
230 FW(7Q10s)
mg/L
0 0
N/A
--Chronic: ---- 415.5 --
--------------------------
Acute: NO WQS
Chlorinated Phenolic Compounds
NC
1 A(30Q2)
ug/L
0 0
N/A
--Chronic: -----
--------------------------
2.7---
Acute: NO WQS
Total Phenolic Compounds
NC
300 A(30Q2)
ug/L
3 2
33.0
Note: n < 9
C.V. (default)
Chronic: 816.1
_
No RP for limited dataset (n<8 samples) No
Limited data set
No value > Allowable Cw
monitoring or limits required
Acute: 2,477.1
Chromium III
NC
192.6417 FW(7Q10s) 1483.3668
µg/L
0 0
N/A
--Chronic: ---- 348.0 --
--------------------------
Acute: 26.7
Chromium VI
NC
11 FW(7Q10s) 16
µg/L
0 0
N/A
--Chronic:-----19.9 --
--------------------------
Tot Cr value(s) > 5 with 1 Tot Cr value(s)
> Cr VI Allowable
Chromium, Total
NC
µg/L 23 3 77.6
Max reported value = 39
Monitor Total Chromium & Chromium IV monthly
based on one value > Cr-IV Allow Conc.
Page 14 of 15
31836 Freshwater RPA 2023, rpa
2/26/2024

Statesville - Fourth Creek WWTP
Outfall 001
NCO031836
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
Qw = 6 MGD
Acute: 30.87
Copper
NC
13.1730 FW(7Q10s) 18.4870
ug/L
37 37
288.86
--Chronic: ---- 23.80 --
--------------------------
RP shown - apply Monthly Monitoring with Limit
2 values > Allowable Cw
Acute: 36.7
Cyanide
NC
5 FW(7Q10s) 22
10
ug/L
23 3
5.0
Chronic: 9.0
All values < 10 considered compliant; no monitoring
No value > Allowable Cw
or limits required
Acute: NO WQS
Fluoride
NC
1800 FW(7Q10s)
ug/L
0 0
N/A
--Chronic: ----3,251.E--
--------------------------
Acute: 247.633
Lead
NC
5.7660 FW(7Q10s) 148.2929
ug/L
23 1
7.050
Chronic: 10.416
No RP, Predicted Max >_ 50% of Allowable Cw -
No value > Allowable Cw
apply Quarterly Monitoring
Acute: NO WQS
Mercury
NC
12 FW(7Q10s)
0.5
ng/L
0 0
N/A
--Chronic:-----21.7 --
--------------------------
Acute: NO WQS
Molybdenum
NC
2000 HH(7Q10s)
ug/L
18 5
8.9
Chronic: 3,612.9
No RP, Predicted Max < 50% of Allowable Cw - No
No value > Allowable Cw
Monitoring required
Acute (FW): 932.5
Nickel
NC
61.9174 FW(7Q10s) 558.4052
µg/L
23 19
144.3
_
Chronic (FW) 111.9
Monitor monthly based on one result > Allowable
No value > Allowable Cw
Concentration
Nickel
NC
25.0000 WS(7Q10s)
µg/L
------------------------------
Chronic (WS) 45.2
1 values > Allowable Cw
Acute: 93.5
Selenium
NC
5 FW(7Q10s) 56
ug/L
23 0
7.9
--Chronic: ----- 9.0---
--------------------------
No detects - no monitoring or limits required
NO DETECTS
Max MDL = 10
Acute: 1.397
Silver
NC
0.06 FW(7Q10s) 0.8365
ug/L
23 0
3.975
--Chronic: ---- 0.108 --
--------------------------
No detects at < 5 and < 0.5 ug/L.
NO DETECTS
Max MDL = 5
Acute: 350.0
Zinc
NC
210.9282 FW(7Q10s) 209.5695
ug/L
23 23
95.6
Chronic: 381.0
No RP, Predicted Max < 50% of Allowable Cw - No
No value > Allowable Cw
Monitoring required
Acute: NO WQS
Chloroform
NC
2000 FW(7Q10s)
µg/L
3 2
5.19000
Note: n < 9
C.V. (default)
Chronic: 3612.90323
_
No RP for limited dataset (n<8 samples) No
Limited data set
No value > Allowable Cw
monitoring or limits required
Acute: NO WQS
Toluene
NC
11 FW(7Q10s)
µg/L
3 1
18.60000
Note: n < 9
C.V. (default)
Chronic: 19.87097
_
No RP for limited dataset (n<8 samples) No
Limited data set
No value > Allowable Cw
monitoring or limits required
Acute: NO WQS
Bis(2-ethylhexyl) phthalate
C
0.37 HH(Qavg)
µg/L
3 1
33.30000
Note: n < 9
C.V. (default)
Chronic: 2.22000
RP for Limited Dataset (n<8 samples) - apply
Limited data set
3 value(s) > Allowable Cw
Quarterly Monitoring
31836 Freshwater RPA 2023, rpa
Page 15 of 15 2/26/2024

Permit No. NC0031836
NPDES Implementation of Instream Dissolved Metals Standards - Freshwater Standards
The NC 2007-2015 Water Quality Standard (WQS) Triennial Review was approved by the NC
Environmental Management Commission (EMC) on November 13, 2014. The US EPA subsequently
approved the WQS revisions on April 6, 2016, with some exceptions. Therefore, metal limits in draft
permits out to public notice after April 6, 2016 must be calculated to protect the new standards - as
approved.
Table 1. NC Dissolved Metals Water Q ality Standards/A uatic Life Protection
Parameter
Acute FW, µg/1
(Dissolved)
Chronic FW, µg/1
(Dissolved)
Acute SW, µg/l
(Dissolved)
Chronic SW, µg/l
(Dissolved)
Arsenic
340
150
69
36
Beryllium
65
6.5
---
---
Cadmium
Calculation
Calculation
40
8.8
Chromium III
Calculation
Calculation
---
---
Chromium VI
16
11
1100
50
Copper
Calculation
Calculation
4.8
3.1
Lead
Calculation
Calculation
210
8.1
Nickel
Calculation
Calculation
74
8.2
Silver
Calculation
0.06
1.9
0.1
Zinc
Calculation
Calculation
90
81
Table 1 Notes:
1. FW= Freshwater, SW= Saltwater
2. Calculation = Hardness dependent standard
3. Only the aquatic life standards listed above are expressed in dissolved form. Aquatic life
standards for Mercury and selenium are still expressed as Total Recoverable Metals due to
bioaccumulative concerns (as are all human health standards for all metals). It is still necessary
to evaluate total recoverable aquatic life and human health standards listed in 15A NCAC
213.0200 (e.g., arsenic at 10 µg/1 for human health protection; cyanide at 5 µg/L and fluoride at
1.8 mg/L for aquatic life protection).
Table 2. Dissolved Freshwater Standards for Hardness -Dependent Metals
The Water Effects Ratio (WER) is equal to one unless determined otherwise under 15A
NCAC 02B .0211 Subparagraph (11)(d)
Metal
NC Dissolved Standard, µg/I
Cadmium, Acute
WER*{1.136672-[ln hardness](0.041838)} e^{0.9151 [In hardness]-3.1485{
Cadmium, Acute Trout waters
WER*{1.136672-[ln hardness](0.041838)} e^{0.9151[In hardness]-3.6236}
Cadmium, Chronic
WER*{1.101672-[ln hardness](0.041838)} e^{0.7998[ln hardness]-4.4451}
Chromium III, Acute
WER*0.316 e^{0.8190[ln hardness]+3.7256}
Chromium III, Chronic
WER*0.860 e^{0.8190[ln hardness]+0.6848}
Copper, Acute
WER*0.960 e^{0.9422[ln hardness]-1.700}
Copper, Chronic
WER*0.960 e^{0.8545[ln hardness]-1.702}
Lead, Acute
WER*{1.46203-[ln hardness](0.145712)} • e^{1.273[ln hardness]-1.4601
Lead, Chronic
WER*{1.46203-[ln hardness](0.145712)} • ell {1.273[ln hardness]-4.705}
Nickel, Acute
WER*0.998 e^{0.8460[ln hardness]+2.255}
Nickel, Chronic
WER*0.997 e^{0.8460[ln hardness]+0.0584}
Page 1 of 4

Permit No. NCO031836
Silver, Acute
WER*0.85 • e^{1.72[ln hardness]-6.59)
Silver, Chronic
Not applicable
Zinc, Acute
WER*0.978 e^{0.8473[ln hardness]+0.884)
Zinc, Chronic
WER*0.986 e^{0.8473[ln hardness]+0.884)
General Information on the Reasonable Potential Analysis (RPA)
The RPA process itself did not change as the result of the new metals standards. However, application of
the dissolved and hardness -dependent standards requires additional consideration in order to establish the
numeric standard for each metal of concern of each individual discharge.
The hardness -based standards require some knowledge of the effluent and instream (upstream) hardness
and so must be calculated case -by -case for each discharge.
Metals limits must be expressed as `total recoverable' metals in accordance with 40 CFR 122.45(c). The
discharge -specific standards must be converted to the equivalent total values for use in the RPA
calculations. We will generally rely on default translator values developed for each metal (more on that
below), but it is also possible to consider case -specific translators developed in accordance with
established methodology.
RPA Permitting Guidance/WQBELs for Hardness -Dependent Metals - Freshwater
The RPA is designed to predict the maximum likely effluent concentrations for each metal of concern,
based on recent effluent data, and calculate the allowable effluent concentrations, based on applicable
standards and the critical low -flow values for the receiving stream.
If the maximum predicted value is greater than the maximum allowed value (chronic or acute), the
discharge has reasonable potential to exceed the standard, which warrants a permit limit in most cases. If
monitoring for a particular pollutant indicates that the pollutant is not present (i.e. consistently below
detection level), then the Division may remove the monitoring requirement in the reissued permit.
To perform a RPA on the Freshwater hardness -dependent metals the Permit Writer compiles the
following information:
• Critical low flow of the receiving stream, 7Q 10 (the spreadsheet automatically calculates
the 1 Q 10 using the formula 1 Q 10 = 0.843 (s7Q 10, cfs) 0.993
• Effluent hardness and upstream hardness, site -specific data is preferred
• Permitted flow
• Receiving stream classification
2. In order to establish the numeric standard for each hardness -dependent metal of concern and for
each individual discharge, the Permit Writer must first determine what effluent and instream
(upstream) hardness values to use in the equations.
The permit writer reviews DMR's, Effluent Pollutant Scans, and Toxicity Test results for any
hardness data and contacts the Permittee to see if any additional data is available for instream
hardness values, upstream of the discharge.
If no hardness data is available, the permit writer may choose to do an initial evaluation using a
default hardness of 25 mg/L (CaCO3 or (Ca + Mg)). Minimum and maximum limits on the
hardness value used for water quality calculations are 25 mg/L and 400 mg/L, respectively.
If the use of a default hardness value results in a hardness -dependent metal showing reasonable
potential, the permit writer contacts the Permittee and requests 5 site -specific effluent and
upstream hardness samples over a period of one week. The RPA is rerun using the new data.
Page 2 of 4

Permit No. NCO031836
The overall hardness value used in the water quality calculations is calculated as follows:
Combined Hardness (chronic)
_ (Permitted Flow, cfs *Avg. Effluent Hardness, mg/L)+s7Q10, cfs *Avg. Upstream Hardness, mg/L)
(Permitted Flow, cfs + s7Q 10, cfs)
The Combined Hardness for acute is the same but the calculation uses the IQ 10 flow.
3. The permit writer converts the numeric standard for each metal of concern to a total recoverable
metal, using the EPA Default Partition Coefficients (DPCs) or site -specific translators, if any
have been developed using federally approved methodology.
EPA default partition coefficients or the "Fraction Dissolved" converts the value for
dissolved metal at laboratory conditions to total recoverable metal at in -stream
ambient conditions. This factor is calculated using the linear partition coefficients
found in The Metals Translator: Guidance for Calculating a Total Recoverable
Permit Limit from a Dissolved Criterion (EPA 823-B-96-007, June 1996) and the
equation:
Cdiss = 1
Ctotal 1 + { [Kpo] [ss(I+a)] [10-6] }
Where:
ss = in -stream suspended solids concentration [mg/1], minimum of 10 mg/L used,
and
Kpo and a = constants that express the equilibrium relationship between dissolved
and adsorbed forms of metals. A list of constants used for each hardness -dependent
metal can also be found in the RPA program under a sheet labeled DPCs.
4. The numeric standard for each metal of concern is divided by the default partition coefficient (or
site -specific translator) to obtain a Total Recoverable Metal at ambient conditions.
In some cases, where an EPA default partition coefficient translator does not exist (ie. silver), the
dissolved numeric standard for each metal of concern is divided by the EPA conversion factor to
obtain a Total Recoverable Metal at ambient conditions. This method presumes that the metal is
dissolved to the same extent as it was during EPA's criteria development for metals. For more
information on conversion factors see the June, 1996 EPA Translator Guidance Document.
5. The RPA spreadsheet uses a mass balance equation to determine the total allowable concentration
(permit limits) for each pollutant using the following equation:
Ca = (s7Q 10 + Qw)(Cwgs)-s7Q10) (Cb)
Qw
Where: Ca = allowable effluent concentration (µg/L or mg/L)
Cwqs = NC Water Quality Standard or federal criteria (µg/L or mg/L)
Cb = background concentration: assume zero for all toxicants except NH3* (µg/L or mg/L)
Qw = permitted effluent flow (cfs, match s7Q 10)
s7Q 10 = summer low flow used to protect aquatic life from chronic toxicity and human
health through the consumption of water, fish, and shellfish from noncarcinogens (cfs)
* Discussions are on -going with EPA on how best to address background concentrations
Flows other than s7Q 10 may be incorporated as applicable:
IQ 10 = used in the equation to protect aquatic life from acute toxicity
Page 3 of 4

Permit No. NC0031836
QA = used in the equation to protect human health through the consumption of water,
fish, and shellfish from carcinogens
30Q2 = used in the equation to protect aesthetic quality
6. The permit writer enters the most recent 2-3 years of effluent data for each pollutant of concern.
Data entered must have been taken within four and one-half years prior to the date of the permit
application (40 CFR 122.21). The RPA spreadsheet estimates the 95th percentile upper
concentration of each pollutant. The Predicted Max concentrations are compared to the Total
allowable concentrations to determine if a permit limit is necessary. If the predicted max exceeds
the acute or chronic Total allowable concentrations, the discharge is considered to show
reasonable potential to violate the water quality standard, and a permit limit (Total allowable
concentration) is included in the permit in accordance with the U.S. EPA Technical Support
Document for Water Quality -Based Toxics Control published in 1991.
7. When appropriate, permit writers develop facility specific compliance schedules in accordance
with the EPA Headquarters Memo dated May 10, 2007 from James Hanlon to Alexis Strauss on
40 CFR 122.47 Compliance Schedule Requirements.
The Total Chromium NC WQS was removed and replaced with trivalent chromium and
hexavalent chromium Water Quality Standards. As a cost savings measure, total chromium data
results may be used as a conservative surrogate in cases where there are no analytical results
based on chromium III or VI. In these cases, the projected maximum concentration (95th %) for
total chromium will be compared against water quality standards for chromium III and
chromium VI.
9. Effluent hardness sampling and instream hardness sampling, upstream of the discharge, are
inserted into all permits with facilities monitoring for hardness -dependent metals to ensure the
accuracy of the permit limits and to build a more robust hardness dataset.
10. Hardness and flow values used in the Reasonable Potential Analysis for this permit included:
Parameter
Value
Comments (Data Source)
Average Effluent Hardness, mg/L
46.51
Permittee submitted DMRs
(Total as CaCO3)
Average Upstream Hardness, mg/L
44.50
Permittee submitted data
(Total as CaCO3)
7Q10 summer (cfs)
7.5
Reported in previous permit Fact
Sheet
1Q10 (cfs)
6.23
Calculated in RPA spreadsheet
Permitted Flow (MGD)
6.0
Design flow
Date: August 30, 2023
Permit Writer: Gary Perlmutter
Page 4 of 4

RE: [External] RE: Additional Information request
Ken Galloway <[e-mail]>
Tue 8/29/2023 7:00 AM
To:Perlmutter, Gary <[e-mail]>
1 attachments (2 MB)
8A94D699.J PG;
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message button
located on your Outlook menu bar on the Home tab.
Gary,
The 54 on 3/1/19 was supposedly a 1631 sample... but...
Here is a copy of the email exchange regarding the low-level mercury samples.
I included the actual email in the previous response, but here is a copy / paste of what was sent:
Meritech 1631 Clients. Please read below.... You recently submitted samples for analysis for EPA method 1631 Low level mercury
that, because of the ongoing issues with our equipment, were subcontracted to Summit Labs in Ohio.
When we receive 1631 samples in our lab they have to be preserved with BrCI within 48 hours, so obviously we do so to extend
the hold times. However, When Summit labs received them they also preserved them, even though the CoC we sent clearly shows
that we had already done so. (see attachment). We believe this directly accounts for the unusually high results we received in all
of the samples and therefore requested that the results be invalidated. I realize that the time for submitting to DWQ has past, but
with this information you may be able to take some action that could help rectify your individual situations.
I do believe Summit labs does good work. And, now that they know that our samples will come to them ready to run, we will
continue to send samples there until our issues here are solved; unless directed to do otherwise. I apologize for all of the trouble.
If you have any questions or need additional information, please do not hesitate to contact me.
This was sent from Summit to Meritech regarding this sample that resulted in the 54:
Mr. Merritt,
Samples were submitted for low level mercury analysis (Summit WO# 18100228). These samples arrived preserved with BrCI.
The samples should have been neutralized and analyzed, but the analyst inadvertently digested samples again with BrCI, thus
potentially invalidating the laboratory data.
As such, we request that the customer re -collect the samples and use hydrochloric acid (HCI) as the preservative, per our
analytical procedure.
We apologize for any inconvenience this may cause the customer.
Sincerely,
Robert Ramnarine
Quality Supervisor
Summit Environmental Technologies, Inc.
3310 Win Street
Cuyahoga Falls, OH 44223
1-330-253-8211
For some reason, the scanner is not emailing the page from Summit showing the method is EPA 1631E, but I confirm that is the
method on the Chain of Custody (picture attached).

Ken Galloway
Plant Supervisor
Fourth Creek WWTP
P.O. Box 1111
City of Statesville
704-878-3438
At
CITY of V14, 0
tatemk
WATER RESOURCES
From: Perlmutter, Gary <[e-mail]>
Sent: Monday, August 28, 2023 2:40 PM
To: Ken Galloway <[e-mail]>
Subject: Re: [External] RE: Additional Information request
[NOTICE: This message originated outside of the City of Statesville mail system -- DO NOT CLICK on links or
open attachments unless you are sure the content is safe.]
Thanks,
I've removed those values from my analysis. What about the 54 on 3/1/2019 - is that correct?
From: Ken Galloway <[e-mail]>
Sent: Monday, August 28, 2023 2:33 PM
To: Perlmutter, Gary <gary [e-mail]>
Subject: RE: [External] RE: Additional Information request
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message button
located on your Outlook menu bar on the Home tab.
Gary,
Going back through these results with the lab, the results entered on 1/16/20 and 4/15/21 were from the Priority Pollutant scan
methos 245.1 and should not have been entered into the DMR.
Also, going back through the results, we found 6/7/21 should have been entered as 3.32 ng/I.
The entry on 4/1/20 is actually the result for copper for the other plant, entered by mistake.
I will revise 4 EDMRs tomorrow morning to reflect the correct values.
Also, there were some issues around the time of the 54 ng/I reading with the labs that were subbed out to (email attached).
Please let me know if there is anything else you need.
Thank you,
Ken Galloway
Plant Supervisor
Fourth Creek WWTP
P.O. Box 1111
City of Statesville
704-878-3438
CITY of 41
tates�nlle
WATER RESOURCES

From: Perlmutter, Gary <[e-mail]>
Sent: Monday, August 28, 2023 1:20 PM
To: Ken Galloway <[e-mail]>
Subject: Re: [External] RE: Additional Information request
[NOTICE: This message originated outside of the City of Statesville mail system -- DO NOT CLICK on links or
open attachments unless you are sure the content is safe.]
Thanks Ken,
Looking at the Mercury datum you highlighted, the method is wrong. It should be EPA Method 1631E (low level). Further
reviewing the submitted mercury data, it appears that a couple others may have been analyzed using the wrong method as well.
can you check these data for me?
1/8/19
12.8
2/1/19
19.8
3/1/19
54
6/4/19
3.04
9/9/19
2.73
12/9/19
1.31
1/16/20
< 200
3/9/20
9.08
4/1/20
16
6/8/20
2.77
9/14/20
1.17
12/7/20
1.28
3/10/21
3.21
4/15/21
< 0.2
6/7/21
1
9/7/21
1.59
12/8/21
1.86
3/7/22
1.39
6/6/22
1.58
7/12/22
3.5
9/12/22
3.31
12/5/22
1.55
3/13/23
1.11
6/19/23
1.36
In particular, 54 on 3/1/2019 and < 0.2 on 4/5/2021. It appears that the lab the City is using for the effluent scans isn't using the
low level method.
Thanks,
Gary
From: Ken Galloway <[e-mail]>
Sent: Friday, August 25, 2023 1:10 PM
To: Perlmutter, Gary <[e-mail]>
Subject: RE: [External] RE: Additional Information request
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message button
ocated on your Outlook menu bar on the Home tab.

The results on that page are for 2 different samples for 2 different plants.
E (effluent) 3 is 3rd Creek WWTP
E (effluent) 4 is 4th Creek WWTP
Ken Galloway
Plant Supervisor
Fourth Creek WWTP
P.O. Box 1111
City of Statesville
704-878-3438
01
CITY of \I
tatesv�.11e
WATER RESOURCES
From: Perlmutter, Gary <[e-mail]>
Sent: Friday, August 25, 2023 1:08 PM
To: Ken Galloway <[e-mail]>
Subject: Re: [External] RE: Additional Information request
[NOTICE: This message originated outside of the City of Statesville mail system -- DO NOT CLICK on links or
open attachments unless you are sure the content is safe.]
Thanks,
Are the copper results from two different samples or was it a split sample?
From: Ken Galloway <[e-mail]>
Sent: Friday, August 25, 2023 1:03 PM
To: Perlmutter, Gary <[e-mail]>
Subject: RE: [External] RE: Additional Information request
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Gary,
Looks like the <200 was a mis key, but the rest are correct.
Attached find results pages for the metal results in question.
Thank you,
Ken Galloway
Plant Supervisor
Fourth Creek WWTP
P.O. Box 1111
City of Statesville
704-878-3438
COF, IF
ITY of \`
tat�e
WATER RESOURCES
From: Perlmutter, Gary <[e-mail]>
Sent: Friday, August 25, 2023 12:15 PM
To: Ken Galloway <[e-mail]>
Subject: Re: [External] RE: Additional Information request

You don't often get email from [e-mail]. Learn why this is important
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Thanks Ken,
I have the following high metals data that need to be verified:
• Total Chromium 39 ug/Lon 4/15/2021
• Total Copper 35 ug/L on 7/1/2022
• Total Nickel 78 ug/L on 4/15/2021
• Mercury 54 ng/L on 3/1/2019
• Mercury < 200 ng/Lon 1/15/2020
They appear to be outliers or decimal errors.
Thanks again,
Gary
From: Ken Galloway <[e-mail]>
Sent: Friday, August 25, 2023 10:51 AM
To: Perlmutter, Gary <gary [e-mail]>
Subject: RE: [External] RE: Additional Information request
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message button
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Gary,
Here are the upstream hardness numbers we have.
1 sample per quarter for the last 4 quarters.
Please let me know if this is sufficient.
If not, I will get with the lab to test 5 upstream samples.
Thank you,
Ken Galloway
Plant Supervisor
Fourth Creek WWTP
P.O. Box 1111
City of Statesville
704-878-3438
0.
CITY of % `
tatewme
WATER RESOURCES
From: Perlmutter, Gary <garyperlmutterCcDdeq.nc.gov>
Sent: Thursday, August 24, 2023 3:51 PM
To: Ken Galloway <kgallowastatesvillenc.net>
Subject: Re: [External] RE: Additional Information request
You don't often get email from [e-mail]. Learn why this is important
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Ken,

Do you have any upstream Hardness data that is required by the permit? I know you are currently waived from instream
monitoring via membership of Yadkin -Pee Dee River Basin Association, but the YPDRBA did not sample for Hardness. That said, if
you do not have any data, can you collect five samples over the course of a week and send me the results?
Thanks for your help,
Gary
From: Perlmutter, Gary <[e-mail]>
Sent: Tuesday, August 22, 2023 1:45 PM
To: Ken Galloway <[e-mail]>
Subject: Re: [External] RE: Additional Information request
That's fine. This is voluntary at this point. I just wanted clarification for the Fact Sheet.
From: Ken Galloway <kgaIlowav(@statesvillenc.net>
Sent: Tuesday, August 22, 2023 1:41 PM
To: Perlmutter, Gary <gary perlmutter(@deq.nc.gov>
Subject: RE: [External] RE: Additional Information request
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Gary,
I was not planning on any adding any additional testing beyond what is required on the current permit.
I may have misunderstood, but I thought you were requesting the Chemical Addendum be filled out with the parameters you
included in your email.
I had originally left the Chemical Addendum blank because I didn't anticipate discharge of any additional pollutants beyond what
is in our current permit.
Thank you,
Ken Galloway
Plant Supervisor
Fourth Creek WWTP
P.O. Box 1111
City of Statesville
704-878-3438
CITY of X` 01
tatemk
WATER RESOURCES
From: Perlmutter, Gary <[e-mail]>
Sent: Tuesday, August 22, 2023 1:23 PM
To: Ken Galloway <[e-mail]>
Subject: Re: [External] RE: Additional Information request
You don't often get email from [e-mail]. Learn why this is important
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open attachments unless you are sure the content is safe.]
Thank you Ken,
Regarding the Chemical Addendum spreadsheets, do you plan to sample for these chemicals? If so, you can send the results to
me directly. If you plan to sample the effluent, you will also need to include the 1,4-Dioxane result in the respective month's DMR
under Parameter Code 82388.
Gary

From: Ken Galloway <kgaIloway(«Dstatesvillenc.net>
Sent: Tuesday, August 22, 2023 11:14 AM
To: Perlmutter, Gary <gary [e-mail]>
Subject: [External] RE: Additional Information request
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Gary,
Here are the requested items.
Please let me know if there is anything else you need.
Thank you,
Ken Galloway
Plant Supervisor
Fourth Creek WWTP
P.O. Box 1111
City of Statesville
704-878-3438
CITY of \`7
mteMRe
WATER RESOURCES
From: Perlmutter, Gary <[e-mail]>
Sent: Monday, August 21, 2023 3:22 PM
To: Ken Galloway <[e-mail]>
Subject: Additional Information request
You don't often get email from ggry,[e-mail]. Learn why this is important
[NOTICE: This message originated outside of the City of Statesville mail system -- DO NOT CLICK on links or
open attachments unless you are sure the content is safe.]
Dear Mr. Galloway,
I am the assigned permit writer for the Fourth Creek NPDES permit renewal. I have reviewed your permit application and found
the following items missing:
• Three Effluent Pollutant Scans
• Mercury Minimization Plan summary of activities
• Chemical Addendum
For the Chemical Addendum, please compete the attached forms to document any additional chemicals, such as the emerging
contaminants 1,4-Dioxand and PFAS chemicals that you may expect to be in the effluent. The Chemical Addendum sheet is for
those parameters that have approved testing methods (e.g., 1,4-Dioxane) and the supplemental datasheet is for those that
currently lack approved methods (e.g., PFAS). More information can be found on the Division's
website: https://www.deq.nc.gov/about/divisions/water-resources/permittin gLnpdes-wastewater/npdes-permitting=
process npdes-individual-permit-applications
Feel free to contact me if you have any questions.
NPDES Individual Permit Applications I NC DEQ
NPDES Individual Permit Applications Renewing your existing permit? Federal [40 CFR 122] and State [15A NCAC 02H
.0105(3)] regulations require that permit
www.deq.nc.gov
Thank you,

Gary Perlmutter
Gary Perlmutter, MSc, Environmental Specialist II
NCDEQ/ Division of Water Resources
NPDES Municipal Permitting Unit
919-707-3611 Office
919-306-1017 Cell
gary [e-mail]
Physical Address: 512 N Salisbury St., Raleigh, NC 27604
Mailing Address: 1617 Mail Service Center, Raleigh, NC 27699-1617
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2/26/24 WQS = 12 ng/L
Facility Name
Statesville - 4th Cr WWTP / NC0031836
/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 = 7.500 cfs WQBEL = 21.68 ng/L
Permitted Flow = 6.000 47 ng/L
1/8/19
12.8
12.8
2/1/19
19.8
19.8
6/4/19
3.04
3.04
9/9/19
2.73
2.73
12/9/19
1.31
1.31
7.9 ng/L
- Annual Average for 2019
3/9/20
9.08
9.08
6/8/20
2.77
2.77
9/14/20
1.17
1.17
12/7/20
1.28
1.28
3.6 ng/L
- Annual Average for 2020
3/10/21
3.21
3.21
6/7/21
3.32
3.32
9/7/21
1.59
1.59
12/8/21
1.86
1.86
2.5 ng/L
- Annual Average for 2021
3/7/22
1.39
1.39
6/6/22
1.58
1.58
7/12/22
3.5
3.5
9/12/22
3.31
3.31
12/5/22
1.55
1.55
2.3 ng/L
- Annual Average for 2022
3/13/23
1.11
1.11
6/19/23
1.36
1.36
1.2 ng/L
- Annual Average for 2023

Statesville - 4th Cr WWTP / NCO031836
Mercury Data Statistics (Method 1631E)
2019
2020
2021
2022
2023
# of Samples
5
4
4
5
2
Annual Average, ng/L
7.9
3.6
2.5
2.3
1.2
Maximum Value, ng/L
19.80
9.08
3.32
3.50
1.36
TBEL, ng/L
47
WQBEL, ng/L
21.7