NC0025909_Fact Sheet_20221109

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Fact Sheet
NPDES Permit No. NC0025909

Permit Writer/Email Contact Nick Coco, [e-mail]:
Date: August 10, 2022
Division/Branch: NC Division of Water Resources/NPDES Municipal Permitting
Fact Sheet Template: Version 09Jan2017

Permitting Action:
☒ Renewal
☐ Renewal with Expansion
☐ New Discharge
☐ Modification (Fact Sheet should be tailored to mod request)

Note: A complete application should include the following:
• For New Dischargers, EPA Form 2A or 2D requirements, Engineering Alternatives Analysis, Fee
• For Existing Dischargers (POTW), EPA Form 2A, 3 effluent pollutant scans, 4 2nd species WET
tests.
• For Existing Dischargers (Non-POTW), EPA Form 2C with correct analytical requirements based
on industry category.

Complete applicable sections below. If not applicable, enter NA.

1. Basic Facility Information

Facility Information
Applicant/Facility Name: Town of Rutherfordton/Rutherfordton WWTP
Applicant Address: 129 N. Main Street, Rutherfordton, NC 28139
Facility Address: 1021 S. Main Street, Rutherfordton, NC 28139
Permitted Flow: 1.0 MGD & 3.0 MGD (upon rolling average flow for any 12-month
period exceeding 0.8 MGD)
Facility Type/Waste: MAJOR Municipal; 97% domestic, 3% industrial
Facility Class: 1.0 MGD tier: Grade III Biological Water Pollution Control System
3.0 MGD tier: Grade IV Biological Water Pollution Control System
Treatment Units: mechanical bar screen, grit removal, equalization basin, three aeration
basins, two secondary clarifiers, chlorine contact chamber,
dechlorination, aerobic digester
Pretreatment Program (Y/N) Y; STMP
County: Rutherford
Region Asheville

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Briefly describe the proposed permitting action and facility background: The Town of Rutherfordton
has applied for an NPDES permit renewal at 1.0 MGD for the Rutherfordton WWTP. The facility is rated
for 3.0 MGD, and an expanded flow tier at 3.0 MGD is permitted, taking effect once the facility
demonstrates a rolling average flow for any twelve (12) month period that exceeds 0.8 MGD. As review
of the Town’s discharge monitoring reports (DMRs) during the period reviewed (January 2018 to June
2022) did not demonstrate a rolling average flow for any 12-month period exceeding 0.8 MGD, the 1.0
MGD flow tier and conditions have been maintained. This facility serves a population of approximately
4,030 residents, as well as 1 categorical significant industrial user (CIU) via an approved pretreatment
program. Treated domestic and industrial wastewater is discharged into Cleghorn Creek, a class C
waterbody in the Broad River Basin. The facility has a primary Outfall 001. Outfall 001 is approximately
3 miles upstream of waters designated as WS-IV that are listed in the 2022 303(d) list as impaired for
benthos.

Facility Background: Prior to the 2004 permit renewal, Rutherfordton anticipated the addition of a textile
plant, with the flow to be treated at the Rutherfordton WWTP. Accordingly, the Town expanded the plant
from 1 MGD to 3 MGD. The industry, however, never relocated to Rutherfordton.

Sludge disposal: Sludge is land applied through the land application permit WQ32855.

2. Receiving Waterbody Information:
Receiving Waterbody Information
Outfalls/Receiving Stream(s): Outfall 001 – Cleghorn Creek
Stream Segment: 9-26-(0.5)
Stream Classification: C
Drainage Area (mi2): 7.8
Summer 7Q10 (cfs) 1.86
Winter 7Q10 (cfs): 2.88
30Q2 (cfs): 4.02
Average Flow (cfs): 12
IWC (% effluent): 45% at 1.0 MGD
71% at 3.0 MGD
2022 303(d) listed/parameter: Yes; listed as exceeding criteria for benthos
Subject to TMDL/parameter: Yes- State wide Mercury TMDL implementation.
Basin/Sub-basin/HUC: Broad River/03-08-02/HUC: 03050105
USGS Topo Quad: F11SW

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3. Effluent Data Summary
Effluent data for Outfall 001 is summarized below for the period of January 2018 through June 2022.
Table 1. Effluent Data Summary Outfall 001
Parameter Units Average Max Min Permit
Limit
Flow MGD 0.58* 6.058 0.122 MA 1.0
BOD mg/l 3.2 21 2 WA 45.0
MA 30.0
NH3N summer mg/l 0.26 2.91 0.02 WA 6.0
MA 2.0
NH3N winter mg/l 0.56 7.31 0.04 WA 14.1
MA 4.7
TSS mg/l 3.1 25 2.5 WA 45.0
MA 30.0
pH SU 6.9 7.4 6.0 6.0 ≥ pH ≤
9.0
Fecal coliform #/100 ml 5.3 9700 < 1
(geometric)
WA 400
MA 200
DO mg/l 8.0 14.3 5.1 DA ≥5.0
TRC µg/l 19.7 49 7
DM 28.0
(< 50
compliance)
Temperature ° C 17.2 25 7 Monitor &
Report
TN mg/l 7.4 14.2 1.84 Monitor &
Report
TP mg/l 2.0 3.77 0.19 Monitor &
Report
Total Copper mg/l 6.9 9 2 Monitor &
Report
Total Zinc mg/l 56.6 145 36 Monitor &
Report
MA-Monthly Average, WA-Weekly Average, DM-Daily Maximum, DA=Daily Average
*The 12-month rolling average monthly flow did not exceed 0.8 MGD. As such, the
3.0 MGD flow tier has not been triggered and the 1.0 MGD flow tier and limitations
continue to apply.
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4. Instream Data Summary
Instream monitoring may be required in certain situations, for example: 1) to verify model predictions
when model results for instream DO are within 1 mg/l of instream standard at full permitted flow; 2) to
verify model predictions for outfall diffuser; 3) to provide data for future TMDL; 4) based on other
instream concerns. Instream monitoring may be conducted by the Permittee, and there are also
Monitoring Coalitions established in several basins that conduct instream sampling for the Permittee (in
which case instream monitoring is waived in the permit as long as coalition membership is maintained).
If applicable, summarize any instream data and what instream monitoring will be proposed for this
permit action: The current permit requires instream monitoring for dissolved oxygen, temperature, and
conductivity upstream just above the outfall and downstream at least 300 feet below the outfall. Instream
monitoring is conducted three times per week during June, July, August and September, and once per
week during the rest of the year. Data was observed from January 2018 to June 2022. The data has been
summarized in Table 2 below.
Table 2. Instream Monitoring Data Summary
Parameter Units
Upstream Downstream
Average Max Min Average Max Min
Temperature ° C 16.2 22 2 16.4 22 2
DO mg/l 7.1 13.8 3.4 7.1 14.2 3.8
Conductivity umhos/cm 100.2 862 43 99.3 965 43
Students t-tests were run at a 95% confidence interval to analyze relationships between instream
samples. A statistically significant difference is determined when the t-test p-value result is < 0.05
Downstream temperature was not greater than 29 degrees Celsius [per 15A NCAC 02B .0211 (18)]
during the period reviewed. Downstream temperature was not greater than upstream temperature by more
than 2.8 degrees Celsius during the period reviewed. It was concluded that no statistically significant
difference exists between upstream and downstream temperature.
Downstream DO dropped below 5 mg/L [per 15A NCAC 02B .0211 (6)] on 7 occasions during the period
reviewed. Upon further review, observed drops in downstream DO were consistent with drops in
upstream DO. It was concluded that no statistically significant difference exists between upstr eam and
downstream DO.
It was concluded that no statistically significant difference exists between upstream and downstream
conductivity.
Per 15A NCAC 02B .0508, water quality limited wastewater facilities discharging primarily domestic
waste shall monitor upstream and downstream fecal coliform. During the 2015 permit renewal, instream
fecal coliform sampling was reviewed under the 2002 Guidance Regarding Conductivity and Fecal
Coliform Monitoring. After concluding that the effluent was not causing elevated levels of fecal coliform
downstream, and because the receiving stream is not Class B, the instream fecal coliform monitoring
requirement was removed.
Per the 2016 implementation of instream dissolved metals standards, facilities with pretreatment
programs shall sample for total hardness in the effluent and upstream of the facility. As such, upstream
and effluent hardness sampling has been added to the permit at a quarterly frequency.
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No changes are proposed to instream temperature, dissolved oxygen or conductivity monitoring
requirements.
Is this facility a member of a Monitoring Coalition with waived instream monitoring (Y/N): NO
Name of Monitoring Coalition: NA

5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): The facility reported no limit
violations resulting in enforcement from June 2017 to June 2022.
Summarize the compliance record with aquatic toxicity test limits and any second species test results
(past 5 years): The facility passed 18 of 18 quarterly chronic toxicity tests, as well as all 4 second species
chronic toxicity tests from January 2018 to April 2022. During the initial application for renewal, it was
noted that the Permittee had not conducted second species chronic toxicity testing. The Town conducted
this additional testing in accordance with construction provided by the DWR Aquatic Toxicology Branch
and submitted this additional information.
Summarize the results from the most recent compliance inspection: The last facility inspection conducted
in November 2021 reported that the facility was compliant.

6. Water Quality-Based Effluent Limitations (WQBELs)
Dilution and Mixing Zones
In accordance with 15A NCAC 2B.0206, the following streamflows are used for dilution considerations
for development of WQBELs: 1Q10 streamflow (acute Aquatic Life); 7Q10 streamflow (chronic Aquatic
Life; non-carcinogen HH); 30Q2 streamflow (aesthetics); annual average flow (carcinogen, HH).
If applicable, describe any other dilution factors considered (e.g., based on CORMIX model results): NA
If applicable, describe any mixing zones established in accordance with 15A NCAC 2B.0204(b): NA

Oxygen-Consuming Waste Limitations
Limitations for oxygen-consuming waste (e.g., BOD) are generally based on water quality modeling to
ensure protection of the instream dissolved oxygen (DO) water quality standard. Secondary TBEL limits
(e.g., BOD= 30 mg/l for Municipals) may be appropriate if deemed more stringent based on dilution and
model results.
If permit limits are more stringent than TBELs, describe how limits were developed: The existing
limitations for BOD5 are secondary treatment standards based on 40 CFR 133.102. These limits were
confirmed in a 1985 (1.0 MGD flow tier) and 1996 (3.0 MGD flow tier) Level B model. No changes are
proposed.

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Ammonia and Total Residual Chlorine Limitations
Limitations for ammonia are based on protection of aquatic life utilizing an ammonia chronic criterion of
1.0 mg/l (summer) and 1.8 mg/l (winter). Acute ammonia limits are derived from chronic criteria,
utilizing a multiplication factor of 3 for Municipals and a multiplication factor of 5 for Non-Municipals.
Limitations for Total Residual Chlorine (TRC) are based on the NC water quality standard for protection
of aquatic life (17 ug/l) and capped at 28 ug/l (acute impacts). Due to analytical issues, all TRC values
reported below 50 ug/l are considered compliant with their permit limit.
Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: TRC limits have
been reviewed in the attached WLA and have been found to be protective. No changes are proposed.
The current ammonia permit limits for the 1.0 MGD flow tier were set based on IWC-based
concentrations in the 2004 renewal for protection against oxygen-consuming waste. Ammonia limits have
existed in the permit for the 3.0 MGD flow tier since 2000. The ammonia limits have been reviewed in
the attached WLA for toxicity and have been found to be protective. No changes are proposed.

Reasonable Potential Analysis (RPA) for Toxicants
If applicable, conduct RPA analysis and complete information below.
The need for toxicant limits is based upon a demonstration of reasonable potential to exceed water quality
standards, a statistical evaluation that is conducted during every permit renewal utilizing the most recent
effluent data for each outfall. The RPA is conducted in accordance with 40 CFR 122.44 (d) (i). The NC
RPA procedure utilizes the following: 1) 95% Confidence Level/95% Probability; 2) assumption of zero
background; 3) use of ½ 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 RPA was conducted using WS standards to protect downstream WS-IV uses. As such, chlorinated
phenolic compounds, total dissolved solids and nitrate were assessed. All chlorinated phenols were
reported as non-detected in the 2017, 2018 and 2019 effluent pollutant scans. Nitrite + Nitrate values
were used in conducting a reasonable potential analysis for nitrate. Total hardness was not greater than
100 mg/L as CaCO3 during the period reviewed.
A reasonable potential analysis was conducted on effluent toxicant data collected between January 2018
and June 2022. Pollutants of concern included toxicants with positive detections and associated water
quality standards/criteria. Based on this analysis, the following permitting actions are proposed for this
permit:
• Effluent Limit with Monitoring. The following parameters will receive a water quality-based
effluent limit (WQBEL) since they demonstrated a reasonable potential to exceed applicable
water quality standards/criteria: Nitrate (MA – 22.0 mg/L)
• 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
Silver; The dataset of 10 samples shows one total silver detection at 0.3 ug/L. Upon further
review of the date of detection, upstream and influent total silver was reported as detected at
concentrations of 0.28 ug/L and 0.48 ug/L, respectively. To better characterize the Town’s silver
contribution, monthly monitoring has been added but no limit has been applied based on best
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professional judgement (BPJ). The Town has one industrial discharger. It is recommended that
total silver be added to the pretreatment short term monitoring plan.
• No Limit or Monitoring: The following parameters will not receive a limit or monitoring, since
they did not demonstrate reasonable potential to exceed applicable water quality
standards/criteria and the maximum predicted concentration was <50% of the allowable
concentration: Total Arsenic, Total Cadmium, Total Chromium, Total Copper, Total Lead, Total
Nickel, Total Selenium, Total Zinc
• POTW Effluent Pollutant Scan Review: Three effluent pollutant scans were evaluated for
additional pollutants of concern.
o The following parameter(s) will receive a water quality-based effluent limit (WQBEL)
with monitoring, since as part of a limited data set, two samples exceeded the allowable
discharge concentration: None
o The following parameter(s) will receive a monitor-only requirement, since as part of a
limited data set, one sample exceeded the allowable discharge concentration: None
o The following parameters will not receive a limit or monitoring, since they did not
demonstrate reasonable potential to exceed applicable water quality standards/criteria and
the maximum predicted concentration was <50% of the allowable concentration: Total
Cyanide, Chloroform

The RPA was conducted at both the 1.0 MGD and 3.0 MGD flow tiers. The above summary is applicable
to both flow tiers for all parameters noted except total copper and total zinc. Both total copper and total
zinc showed no reasonable potential for excursions above their respective allowable discharge
concentrations. However, at the 3.0 MGD flow tier, the maximum predicted concentrations for each
parameter were greater than or equal to the allowable discharge concentrations. As such, quarterly
monitoring requirements have been maintained for total copper and total zinc at the 3.0 MGD flow tier.
If applicable, attach a spreadsheet of the RPA results as well as a copy of the Dissolved Metals
Implementation Fact Sheet for freshwater/saltwater to this Fact Sheet. Include a printout of the RPA
Dissolved to Total Metal Calculator sheet if this is a Municipality with a Pretreatment Program.

Toxicity Testing Limitations
Permit limits and monitoring requirements for Whole Effluent Toxicity (WET) have been established in
accordance with Division guidance (per WET Memo, 8/2/1999). Per WET guidance, all NPDES permits
issued to Major facilities or any facility discharging “complex” wastewater (contains anything other than
domestic waste) will contain appropriate WET limits and monitoring requirements, with several
exceptions. The State has received prior EPA approval to use an Alternative WET Test Procedure in
NPDES permits, using single concentration screening tests, with multiple dilution follow-up upon a test
failure.
Describe proposed toxicity test requirement: This is a Major POTW, and a chronic WET limit at 45%
effluent at 1.0 MGD and 71% effluent at 3.0 MGD will continue on a quarterly frequency.

Mercury Statewide TMDL Evaluation
There is a statewide TMDL for mercury approved by EPA in 2012. The TMDL target was to comply
with EPA’s mercury fish tissue criteria (0.3 mg/kg) for human health protection. The TMDL established a
wasteload allocation for point sources of 37 kg/year (81 lb/year), and is applicable to municipals and
industrial facilities with known mercury discharges. Given the small contribution of mercury from point
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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
Table. Mercury Effluent Data Summary
2018 2019 2020
# of Samples 2 1 6
Annual Average Conc. ng/L 1.5 < 1 2.6
Maximum Conc., ng/L 2.4 < 1 7.6
TBEL, ng/L 47
WQBEL, ng/L 26.4

Describe proposed permit actions based on mercury evaluation: Since no annual average mercury
concentration exceeded the WQBEL, and no individual mercury sample exceeded the TBEL, no mercury
limit is required. Since the facility is < 2.0 MGD, a mercury minimization plan (MMP) is not required.
However, as the facility has an expanded flow tier at 3.0 MGD and reported quantifiable levels of
mercury (> 1 ng/l), a mercury minimization plan (MMP) has been added to the permit, to take effect upon
expansion to the 3.0 MGD flow tier.

Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation
within this permit: NA

Other WQBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: NA
If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall
comply with in order to protect the designated waterbody: NA
If applicable, describe any compliance schedules proposed for this permit renewal in accordance with
15A NCAC 2H.0107( c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: As nitrate demonstrated
reasonable potential to exceed the facility’s allowable discharge concentration based on state surface
water standards for the downstream WS-IV waters, monthly average limits have been put in the permit
for nitrate at both flow tiers. After discussing the limits with the Permittee, the Permittee requested a
schedule of compliance to provide time to locate issues and come into compliance with the new limits. A
3-year compliance schedule has also been put in the permit. Within 1 year of the permit’s effective date,
the Permittee shall submit to DWR an Action Plan for Division approval, summarizing the strategy or
actions to be taken to achieve compliance with the nitrate limitations. The plan will include specific dates
for completion or implementation of each action. Within 2 years of the permit’s effective date, the
Permittee shall submit a report to the Division summarizing actions taken in accordance with the Action
Plan. The Town shall achieve compliance with nitrate limitations within 3 years of the permit’s effective
date. Should the Rutherfordton WWTP expand to the 3.0 MGD flow tier, the Town shall achieve
compliance with nitrate limitations upon expansion.
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If applicable, describe any water quality standards variances proposed in accordance with NCGS 143-
215.3(e) and 15A NCAC 2B.0226 for this permit renewal: NA

7. Technology-Based Effluent Limitations (TBELs)
Municipals (if not applicable, delete and skip to Industrials)
Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/l
BOD5/TSS for Monthly Average, and 45 mg/l for BOD5/TSS for Weekly Average). YES
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA
Are 85% removal requirements for BOD5/TSS included in the permit? YES
If NO, provide a justification (e.g., waste stabilization pond). NA

8. Antidegradation Review (New/Expanding Discharge):
The objective of an antidegradation review is to ensure that a new or increased pollutant loading will not
degrade water quality. Permitting actions for new or expanding discharges require an antidegradation
review in accordance with 15A NCAC 2B.0201. Each applicant for a new/expanding NPDES permit
must document an effort to consider non-discharge alternatives per 15A NCAC 2H.0105( c)(2). In all
cases, existing instream water uses and the level of water quality necessary to protect the existing use is
maintained and protected.
If applicable, describe the results of the antidegradation review, including the Engineering Alternatives
Analysis (EAA) and any water quality modeling results: NA

9. Antibacksliding Review:
Sections 402(o)(2) and 303(d)(4) of the CWA and federal regulations at 40 CFR 122.44(l) prohibit
backsliding of effluent limitations in NPDES permits. These provisions require effluent limitations in a
reissued permit to be as stringent as those in the previous permit, with some exceptions where limitations
may be relaxed (e.g., based on new information, increases in production may warrant less stringent TBEL
limits, or WQBELs may be less stringent based on updated RPA or dilution).
Are any effluent limitations less stringent than previous permit (YES/NO): NO
If YES, confirm that antibacksliding provisions are not violated: NA

10. Monitoring Requirements
Monitoring frequencies for NPDES permitting are established in accordance with the following
regulations and guidance: 1) State Regulation for Surface Water Monitoring, 15A NCAC 2B.0500; 2)
NPDES Guidance, Monitoring Frequency for Toxic Substances (7/15/2010 Memo); 3) NPDES Guidance,
Reduced Monitoring Frequencies for Facilities with Superior Compliance (10/22/2012 Memo); 4) Best
Professional Judgement (BPJ). Per US EPA (Interim Guidance, 1996), monitoring requirements are not
considered effluent limitations under Section 402(o) of the Clean Water Act, and therefore anti-
backsliding prohibitions would not be triggered by reductions in monitoring frequencies.
For instream monitoring, refer to Section 4.
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Per 15A NCAC 02B .0508, Grade III and IV water quality limited wastewater facilities discharging
primarily domestic waste shall monitor effluent conductivity 3/week and daily, respectively. However, as
the facility has conducted upstream and downstream sampling, and no statistically significant difference
was found between the two locations, effluent conductivity monitoring has not been added at this time.
The Town of Rutherfordton was granted 2/week monitoring for BOD, ammonia, TSS and fecal coliform
based on 2012 DWR Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits
for Exceptionally Performing Facilities during their 2016 renewal. The Town has requested continuation
of this monitoring frequency reduction as part of their renewal application. The last three years of the
facility’s data for these parameters have been reviewed in accordance with the criteria outlined in the
guidance. As the facility is designed for 3.0 MGD and expansion from 1.0 MGD to 3.0 MGD of
permitted flow is triggered by a rolling average and does not include a construction requirement, this
assessment has been applied to the limit and violation requirements associated with the 3.0 MGD flow
tier. Based on this review, 2/week monitoring frequency has been maintained for BOD, ammonia, TSS
and fecal coliform at both flow tiers.
To identify PFAS contamination in waters classified as Water Supply (WS) waters, monitoring
requirements are to be implemented in permits with pretreatment programs that discharge to WS waters.
As the Rutherfordton WWTP has a pretreatment program and discharges treated wastewater
approximately 3 miles upstream of waters designated as WS-IV, monitoring of PFAS chemicals will be
added to the permit at a frequency of quarterly. Since an EPA method for sampling and analyzing PFAS
in wastewater is not currently available, the PFAS sampling requirement in the Permit includes a
compliance schedule which delays the effective date of this requirement until the first full calendar
quarter beginning 6 months after EPA has a final wastewater method in 40 CFR136 published in the
Federal Register. This date may be extended upon request and if there are no NC-certified labs.
11. Electronic Reporting Requirements
The US EPA NPDES Electronic Reporting Rule was finalized on December 21, 2015. Effective
December 21, 2016, NPDES regulated facilities are required to submit Discharge Monitoring Reports
(DMRs) electronically. While NPDES regulated facilities would initially be required to submit additional
NPDES reports electronically effective December 21, 2020, EPA extended this deadline from December
21, 2020, to December 21, 2025. The current compliance date, effective January 4, 2021, was extended as
a final regulation change published in the November 2, 2020 Federal Register. This permit contains the
requirements for electronic reporting, consistent with Federal requirements.

12.Summary of Proposed Permitting Actions:
A. Table. Current Permit Conditions and Proposed Changes Outfall 001
Parameter Current Permit Proposed Change Basis for Condition/Change
Flow MA 1.0 MGD with
expansion to 3.0 MGD
No change 15A NCAC 2B .0505
BOD5 Both flow tiers:
MA 30.0 mg/l
WA 45.0 mg/l
Monitor and report
2/Week
No change TBEL. Secondary treatment
standards/40 CFR 133 / 15A NCAC
2B .0406; 1985 and 1996 Level B
Models; 2012 DWR Guidance
Regarding the Reduction of
Monitoring Frequencies in NPDES
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Permits for Exceptionally
Performing Facilities
NH3-N 1.0 MGD tier:
Summer:
MA 2.0 mg/l
WA 6.0 mg/l
Winter:
MA 4.7 mg/l
WA 14.1 mg/l

3.0 MGD tier:
Summer:
MA 1.0 mg/l
WA 3.0 mg/l
Winter:
MA 2.0 mg/l
WA 6.0 mg/l

Both tiers:
Monitor and report
2/Week
No change WQBEL. 2022 WLA review. 15A
NCAC 2B; 2012 DWR Guidance
Regarding the Reduction of
Monitoring Frequencies in NPDES
Permits for Exceptionally
Performing Facilities
TSS Both flow tiers:
MA 30.0 mg/l
WA 45.0 mg/l
Monitor and report
2/Week
No change TBEL. Secondary treatment
standards/40 CFR 133 / 15A NCAC
2B .0406; 1985 and 1996 Level B
Models; 2012 DWR Guidance
Regarding the Reduction of
Monitoring Frequencies in NPDES
Permits for Exceptionally
Performing Facilities
Fecal coliform Both flow tiers:
MA 200 /100ml
WA 400 /100ml
Monitor and report
2/Week
No change WQBEL. State WQ standard, 15A
NCAC 2B .0200; 2012 DWR
Guidance Regarding the Reduction
of Monitoring Frequencies in
NPDES Permits for Exceptionally
Performing Facilities
DO Both flow tiers:
> 5 mg/l

1.0 MGD tier:
Monitor and Report
3/week

3.0 MGD tier:
Monitor and Report
daily
No change WQBEL. State WQ standard, 15A
NCAC 2B .0200; 15A NCAC 02B
.0500
pH Both flow tiers:
6 – 9 SU

1.0 MGD tier:
No change WQBEL. State WQ standard, 15A
NCAC 2B .0200; 15A NCAC 02B
.0500
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Monitor and Report
3/week

3.0 MGD tier:
Monitor and Report
daily
Total Residual
Chlorine
1.0 MGD tier:
DM 28 ug/L
3.0 MGD tier:
DM 24 ug/L
No change

WQBEL. 2021 WLA. Surface Water
Monitoring, 15A NCAC 2B. 0500
Nitrate No requirement 1.0 MGD tier:
MA 22.0 mg/L
Monitor and Report
Monthly
3.0 MGD tier:
MA 14.0 mg/l
Monitor and Report
Monthly

Based on results of Reasonable
Potential Analysis (RPA) and BPJ;
RP shown - apply Monthly
Monitoring; Protection of
downstream WS-IV designation
Total Nitrogen Both flow tiers:
Monitor and Report
Quarterly
No change

Surface Water Monitoring, 15A
NCAC 2B. 0500
Total Phosphorus Both flow tiers:
Monitor and Report
Quarterly
No change Surface Water Monitoring, 15A
NCAC 2B. 0500
Total Copper Monitor and Report
Quarterly
1.0 MGD tier:
Remove monitoring
requirement
3.0 MGD tier:
No change. Monitor
and Report Quarterly
Based on results of Reasonable
Potential Analysis (RPA);
1.0 MGD tier: No RP, Predicted
Max < 50% of Allowable Cw - No
Monitoring required
3.0 MGD tier: No RP, Predicted
Max ≥ 50% of Allowable Cw –
apply Quarterly Monitoring
Total Zinc Monitor and Report
Quarterly
1.0 MGD tier:
Remove monitoring
requirement
3.0 MGD tier:
No change. Monitor
and Report Quarterly
Based on results of Reasonable
Potential Analysis (RPA);
1.0 MGD tier: No RP, Predicted
Max < 50% of Allowable Cw - No
Monitoring required
3.0 MGD tier: No RP, Predicted
Max ≥ 50% of Allowable Cw –
apply Quarterly Monitoring
Total Silver No requirement Both flow tiers:
No limit.
Monitor and Report
Monthly
Based on results of Reasonable
Potential Analysis (RPA) and BPJ;
RP shown - apply Monthly
Monitoring, as only one detection in
a dataset of 10 samples was reported
greater than Cw, monitoring will be
added to better understand silver
contributions but no limit will be
applied.
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Total Hardness No requirement Quarterly monitoring
Upstream and in
Effluent
Hardness-dependent dissolved
metals water quality standards
approved in 2016
PFAS No requirement
Add quarterly
monitoring with
delayed
implementation
Evaluation of PFAS contribution:
pretreatment facility;
Implementation delayed until after
EPA certified method becomes
available.
Toxicity Test 1.0 MGD tier:
Chronic limit, 45%
effluent
3.0 MGD tier:
Chronic limit, 71%
effluent
No change WQBEL. No toxics in toxic
amounts. 15A NCAC 2B.0200 and
15A NCAC 2B.0500
Effluent Pollutant
Scan
Three times per permit
cycle
No change; conducted
in 2024, 2025, 2026
40 CFR 122
Mercury
Minimization Plan
(MMP)
No requirement Add MMP Special
Condition; active upon
expansion to 3.0 MGD
flow tier
WQBEL. Consistent with 2012
Statewide Mercury TMDL
Implementation.
Electronic
Reporting
Electronic Reporting
Special Condition
No change In accordance with EPA Electronic
Reporting Rule 2015.
MGD – Million gallons per day, MA - Monthly Average, WA – Weekly Average, DM – Daily Max

13. Public Notice Schedule:
Permit to Public Notice: 08/17/2022

Per 15A NCAC 2H .0109 & .0111, The Division will receive comments for a period of 30 days following
the publication date of the public notice. Any request for a public hearing shall be submitted to the
Director within the 30 days comment period indicating the interest of the party filing such request and the
reasons why a hearing is warranted.

14. NPDES Division Contact
If you have any questions regarding any of the above information or on the attached permit, please
contact Nick Coco at [phone] or via email at [e-mail].

15. Fact Sheet Addendum (if applicable):
The draft was submitted to the Town of Rutherfordton, EPA Region IV, and the
Division’s Asheville Regional Office, Aquatic Toxicology Branch, Basin Planning Branch and Operator
Certification Program for review.

No comments were received from any party.

Were there any changes made since the Draft Permit was public noticed (Yes/No): NO
If Yes, list changes and their basis below: NA

Page 14 of 14

16. Fact Sheet Attachments (if applicable):
• RPA Spreadsheet Summary
• NPDES Implementation of Instream Dissolved Metals Standards – Freshwater Standards
• NH3/TRC WLA Calculations
• BOD & TSS Removal Rate Calculations
• Mercury TMDL Calculations
• Monitoring Frequency Reduction Evaluation
• Pretreatment Information Request Form
• WET Testing and Self-Monitoring Summary
• Compliance Inspection Report
• Requested Additional Information
• Application Addendum
Public Notice
AFFP North Carolina
Public Notice North Carolina Environmental Management
CommissiontNPDES Unit
1617 Mail Service Center
Affidavit of Publication Raleigh, NC 27699-1617
Notice of Intent to Issue a NP-
DES Wastewater Permit
STATE OF NC }NC0025909 Rutherfordton
COUNTY OF RUTHERFORD
SS WWTP The North Carolina En-
vironmental Management Com-
mission proposes to issue a
LORI SPURLING, being duly sworn, says:
NPDES wastewater discharge
permit to the person(s) listed
That she is PUBLISHER of the THE DAILY COURIER, a
below. Written comments re-
daily newspaper of general circulation, printed and garding the proposed permit
published in FOREST CITY, Rutherford County, NC; that
will be accepted until 30 days
the publication, a copy of which is attached hereto, was
after the publish date of this no-
published in the said newspaper on the following dates:
tics. The Director of the NC Di-
vision of Water Resources
August 17, 2022 DWR) may hold a public hear-
ing should there be a signific-
ant degree of public interest.
Please mail comments and/or
information requests to DWR at
the above address. Interested
persons may visit the DWR at
That said newspaper was regularly issued and circulated 512 N. Salisbury Street,
on those dates. Raleigh. NC 27604 to review in-
SIGN formation on file. Additional in-
r, ' formation on NPDES permits
and this notice may be found
on our website:
PURL SHER http://deq.nc.gov/aboutidivi-
Subscribed to and sworn to me this 17th day of August sionswater resourcesr`water re
2022. sources-permitsiwastewater-
branchinAdes-wastewater/pu b-
lic-notices,or by calling (919)
707-3601. The Town of Ruther-
fordton [129 N. Main Street,
Rutherfordton, NC 28139] has
enise N. Downs, NOTARY , Rutherford County, NC requested renewal of NPDES
permit NC0025909 for its
My commission expires: July 16, 2027 Rutherfordton Wastewater
Treatment Plant, located in
Rutherford County. This permit-
ted facility discharges treated
00013047 70440125
municipal and industrial
wastewater to Cleghorn Creek,
WREN THEDFORD (FC) a class C water in the Broad
DEQ-DIVISION OF WATER RESOURCES (FC)River Basin. Ammonia, fecal
1617 MAIL SERVICE CENTER coliform, dissolved oxygen, pH,
RALEIGH, NC 27699-1617 TRC and nitrate are water qual-
ity limited. This discharge may
affect future allocations in this
segment of Cleghorn Creek.
Aug. 17, 2022
ATTACHMENT II
NARRATIVE DESCRIPTION OF PROCESS FLOW
AND
PROCESS FLOW SCHEMATIC

NARRATIVE DESCRIPTION OF PROCESS FLOW
Rutherfordton WWTP NPDES NC0025909
The Town of Rutherfordton Wastewater Treatment Plant (WWTP) is a 3.0 MGD design capacity
facility. The facility treats wastewater from domestic, commercial and industrial sources.
Wastewater is gravity flowed and pumped to the wastewater treatment plant. The current
treatment scheme includes a mechanical bar screen, grit removal system, equalization basin,
activated sludge treatment includes the use of 2 aeration basins high speed mechanical aeration.
Treatment is followed by 2 secondary clarifiers. The treated effluent flow through a chlorine
contact chamber and is disinfected by sodium hypochlorite followed by dechlorination through
the use of sodium bisulfite. Final effluent is discharged into Cleghorn Creek.
Excess biological solids are transferred to an aerobic digester for stabilization. The digested
biosolids are decanted to thicken and land applied in liquid form on permitted sites.
Attached is a flow schematic.

ATTACHMENT VI
REQUEST FOR REDUCED MONITORING FOR
EXCEPTIONAL QUALITY EFFLUENT

ATTACHEMENTI
REQUEST FOR REDUCED MONITORING FOR EXCEPTIONALLY PERFORMING FACILITIES
Town of Rutherfordton WWTP (NC0025909)
DMR Data (1/1/2019 - 12/31/2021)
Date
Effluent BOD
Effluent TSS
Eff NH3 N
Effluent Fecal
mg/L
mg/L
mg/I
9/100 ml
1/2/2019
3.0
<2.5
0.1
2.0
1/7/2019
8.7
4.0
0.8
655.0
1/9/2019
4.8
5.1
0.1
3600.0
1/11/2019
<1.0
1/14/2019
4.7
3.5
0.1
12,0
1/16/2019
2.5
4.1
0.2
6.0
1/22/2019
6.2
2.9
0,1
24.0
1/25/2019
6.0
4.1
<0.04
8.0
1/28/2019
6.5
8 6
0.1
290.0
1/30/2019
3.2
3.4
0.1
1500.0
2/1/2019
5.0
2/4/2019
4.4
2.7
0.1
3.0
2/6/2019
5.3
<2.5
0.2
75.0
2/11/2019
3.8
2.6
0.1
3.0
2/13/2019
4.6
2.7
0,1
2.0
2/18/2019
7.2
5.7
0.6
5100.0
2/20/2019
3.3
8.0
0,2
2/21/2019
67.0
`
2/22/2019
6 0
2/25/2019
3.5
3.6
0.1
6000.0
2/27/2019
<2.0
3.1
0.2
2.0
3/4/2019
2.1
3.5
0.1
3.0
3/6/2019
2.4
3.4
0.1
10
3f11/2019
2.9
2.8
0.1
<1.0
3/13/2019
<2.0
2.9
0.1
173.0
3/18/2019
2.1
<2.5
0.2
2.0
3/20/2019
2.1
2.9
0.1
1.0
3/25/2019
3.6
<2.5
0.1
<1.0
3/27/2019
2.5
<2.5
0.1
1.0
4/1/2019
<2.0
2,8
0.1
1.0
4/3/2019
2.3
<2.5
5.0
0.1
4/8/2019
2.1
<2.5
0.1
2.0
4/10/2019
<2.0
<2.5
0.1
1.0
4/15/2019
2.9
<2.5
0.1
182.0
4/17/2019
<2.0
<2.5
0.2
2-0
4/22/2019
<2.0
3.2
0.2
5-0
4/24/2019
<2.0
<2.5
0.2
1.0
4/29/2019
3,6
<2.5
0.4
3.0
5/1/2019
<2.0
<2.5
0.4
7.0
5/6/2019
<2.0
<2.6
0.2
37.0
5/8/2019
2.1
<2.5
0.1
14.0
5/15/2019
<2.0 .
<2.5
0.1
2.0
5/16/2019
<2.0
<2.5
0.2
108.0
5/20/2019
<2.0
<2.5
0.2
5.0
5/22/2019
3.5
<2.5
0.4
6.0
5/28/2019
2.7
<2,5
0.2
8.0
5/30/2019
2.4
<L5
0.2
85.0
6/3/2019
2.0
<2.6
0.1
14.0
6/5/2019
2.7
<2.5
0.3
<1.0
6/10/2019
3.8
<2.5
0.2
6000.0
6/12/2019
<2.0
<25
0.1
<1.0
6/17/2019
2.6
<2.5
0.1
5.0
6/19/2019
4.5
2.6
0.1
48.0
6/24/2019
2.6
<2.6
0.1
2.0
6/26/2019
4.2
<2.5
0.4
5.0
7/1/2019
<2.0
<2.5
0.2
25.0
7/3/2019
2.5
<2.5
0.3
41.0
7/8/2019
3.0
<2.5
0.3
15.0
7/10/2019
2.1
<2.5
0.2
8.0
7/15/2019
2.4
<2.5
0.2
<1.0
7/17/2019
<2.0
<2.6
0.2
<1 0
7/22/2019
3.1
<2.5
0_2
<10
7/24/2D19
3 8
<2.5
0.2
10.0
7/29/2019
2 4
<2.5
0.2
<1-0
7/31/2019
2.1
<2.5
0.1
<1.0
8/5/2019
2.3
<2.5
0.2
2.0
8/7/2019
2.3
<2.5
0.5
<1.0
8/12/2019
2.1
<2.5
0.2
8.0
8/14/2019
2.0
<2.5
0.7
2.0
8/19/2019
<2.0
<2.5
0.1
3.0
8/21/2019
2.3
<2.5
0.4
1.0
8/26/2019
<2.0
<2.5
0.1
3.0
8/28/2019
<2.0
<2.5
0.6
<1.0
9/3/2019
2.1
<2.5
0.2
<1.0
9/5/2019
2.9
<2.5
0.3
<1.0
9/9/2019
2.7
<2.5
0.2
1.0
9/11/2019
<2.0
<2.5
1.0
<1.0
9/16/2019
3.7
<2.5
0.1
2.0
9/18/2019
3.6
<2.5
0.2
127.0
9/23/2019
<2.0
<2.5
0.1
310.0
9/25/2019
<2.0
<2.5
01
<1.0
WINTER MONTHS
Date
Effluent NH3-N
mg/L
1/2/2019
0.11
1/7/2019
0.78
1/9/2019
0.10
1/11/2019
1/14/2019
0.08
1/16/2019
0.18
V22/2019
0.07
1,/25/2019
<0.04
1/28/2019
0.09
1/30/2019
0.11
2/1/2019
2/4/2019
0.12
2/6/2019
0.19
2/11/2019
0.11
2/13/2019
0.09
2/18/2019
0.61
2/20/2019
0.19
2/21,/2019
2/22/2019
2/25/2019
0.09
2/27/2019
0.21
3/4/2019
0.08
3/6/2019
0.11
3/11/2019
0.08
3/13/2019
0.11
3/18/2019
0.21
3/20/2019
0,14
3/25/2019
0,12
3/27/2019
0,09
11/4/2019
0.10
11/6/2019
0.47
11/11/2019
0.07
11/13/2019
0.26
11/18/2019
0.60
11/20/2019
0.74
11/25/2019
2.23
11/27/2019
1.34
12/2/2019
0.78
12/4/2019
0.29
12/9/2019
0.08
12/11/2019
0.64
12/16/2019
0.73
12/18/2019
0.62
12/23/2019
0.13
12/27/2019
0.42
12/30/2019
0.06
1/3/2020
0.24
1/6/2020
0.05
1/8/2020
0.24
1/13/2020
0.46
1/15/2020
0.28
1/21/2020
0.07
1/23f2020
0.22
1/27/2020
0 11
1/28/2020
0 21
1/29/2020
0.29
2/3/2020
0.09
2/5/2020
0.38
2/10/2020
0.21
2/11/2020
0.12
2/12/2020
0.05
2/17/2020
0.50
2/19/2020
0.98
2/24/2020
2/26/2020
2.86
2/28/2020
1.82
3f2f2020
0.38
3f4/2020
0.84
3/9/2020
1.52
3/11/2020
2.28
3/16/2020
0.29
3/18/2020
0.87
3/23/2020
1.07
3/25/2020
1.37
3/30/2020
0.38
11/2/2020
0.11
11/4/2020
0.05
11/9/2020
0.27
11/11/2020
0.08
11/16/2020
0.10
11/18/2020
0.62
SLIMMER MONTHS
Date
Effluent NH3-N
mg/L
4/1/2019
0.12
4/3/2019
5.00
4/8/2019
0.07
4/10/2019
0.13
4/15/2019
0.11
4/17/2019
0.20
4/22/2019
0.24
4/24/2019
0.18
4/29/2019
0.36
5/1/2019
0.40
5/6/2019
0_17
5/8/2019
0_13
5/15/2019
0.12
5/16f2019
0.21
5/20/2019
0.18
5/22/2019
0.35
5/28/2019
0.15
5/30/2019
0,23
6/3/2019
0.10
6/5/2019
0.26
6/10/2019
0.21
6/12/2019
0.08
6/17/2019
0.10
6/19/2019
0.14
6/24/2019
0.09
6/26/2019
0.37
7f 1/2019
0.17
7/3/2019
0.27
7/8/2019
0.26
7/10/2019
0.22
7/15/2019
0.15
7/17/2019
0.18
7/22/2019
0.22
7/24/2019
0.16
7/29/2019
0.20
7/31/2019
0.14
8/5/2019
0.18
8/7/2019
0.47
8/12/2019
0,21
8/14/2019
0.65
8/19/1019
0.07
8/21/2019
0,36
8/26/2019
0.05
8/28/2019
0.61
9/3/2019
0.20
9/5/2019
0.27
9/9/2019
0.21
9/11/2019
1.04
9/16/2019
0.11
9/18/2019
0.18
9/23/2019
0.10
9/25/2019
0.11
9/30/2019
0.10
10/2/2019
0.28
10f7/2019
0.31
10/9/20191
0 11
10/14/2019
1.91
10/16/2019
0,12
10/21/2019
0.14
10/23/2019
L25
10/28/2019
0.11
10/30/2019
0.32
4/1/2020
0.90
4/6/2020
0.70
4/7/2020
0.12
4/8/2020
0.07
4/13/2020
0.26
4/15/2020
0-06
4/20/2020
0.17
4/22/2020
0.05
4/27/2020
0.06
4/29/2020
0.04
5/4/2020
0.05
5/5/2020
0.08
5/6/2020
0.32
5/11/2020
0.05
5/13/2020
0.16
5/18/2020
0.09
5/20/2020
1.94
5/26/2020
0.06
5/28/2020. 0.25

ATTACHEMENTI
REQUEST FOR REDUCED MONITORING FOR EXCEPTIONALLY PERFORMING FACILITIES
Town of Rutherfordton W WTP (NC0025909)
DMR Data (1/1/2019 - 12/31/2021)
Date
9/30/2019
10/2/2019
Effluent BOD
Effluent TSS
Eff NH3 N
Effluent Fecal
mg/L
<2 0
26
mg/L
23
<2.5
mg/I
0.1
0.3
N/100 ml
1.0
<1.0
10/7/2019
<2.0
<2.5
0.3
4.0
10/9/2019
<2.0
<2.5
0.1
17.0
10/14/2219
2.7
<2.5
19
2.0
10/16/2019
2.3
<2.5
0,1
<1.0
10/21/2119
3.6
2.7
0,1
9,0
1D/23/2019
2.4
4.7
1.3
<1.0
10/28/2D19
10/30/2019
2.0
<2.0
<2,5
<2.5
0.1
0.3
1.0
<1.0
11/4/2019
<2.0
<2.5
0.1
127.0
11/6/2019
3,9
<2.5
0.5
250.0
11/11/2019
<2.0
<2,5
0,1
<1.0
11/13/2019
<2.0
<2,5
0.3
<1.0
11/18/2019
<2.0
<2,5
0.6
2.0
11/20/2019
<2.0
<2.5
0,7
20
11/25/2019
<2.0
<2.5
2.2
30
11/27/2019
2.2
<25
1.3
14.0
12/2/2019
2,7
<2.5
0.8
8.0
12/4/2019
5.0
<2.5
0,3
<1.0
12/9/2019
<2.0
<2.5
0.1
<1.0
12/11/2019
<2.0
<2.5
0.6
1.0
12/16/2019
<2.0
<2.5
0.7
<1,0
12/1B/2019
<2.0
<2.5
0.6
<1.0
12/23/2019
<2.0
<2.5
0.1
15.0
12/27/2019
<2.0
<2.5
0.4
1.0
12/30/2019
<2.0
<2.5
0.1
1.0
1/3/2020
<2.0
<2.5
0.2
12.0
1/6/2020
1/8/2020
<2 0
<2 0
<2.5
<2.5
0.1
0.2
3.0
10.0
1/11/2020
3,0
2.7
0.5
51.0
1/15/2020
3.4
<2.5
0.3
17.0
1/21/2020
2.9
2.8
0.1
<1.0
1/23/2020
2.3
3.8
0.2
4.0
1/27/2020
<2.0
<2.5
0.1
1.0
1/28/2020
<2,0
2.7
0.2
1/29/2020
<2,0
3.3
0-3
<1.0
1/3/2020
<2,0
<2.5
0-1
1.0
2/5/2020
<2.0
<2.5
0-4
<1.0
2/10/2020
<2.0
<2.5
0.2
155.0
2/11/2020
2.0
<2.5
0-1
2/12/2020
4.6
<2.5
0.1
<1.0
2/17/2020
5.3
25.0
0.5
1.0
2/19/2020
4.3
3.5
1.0
1.0
2/24/2020
<1.0
2/26/2020
4.4
3.0
2.9
<1.0
28/2020
6.3
9.0
3/2/2020
5.8
3.4
0.4
1.0
3/4/2020
5.7
4.1
0.8
1.0
3/9/2020
5.3
5.0
1.5
2.0
3/11/2020
5.1
5.8
2.3
2.0
3/16/2020
2.4
<25
0_3
<1.0
3/18/2020
2.9
<2-5
0_9
<1.0
3/23/2020
5.8
3.1
1_1
10
3/25/2020
5.6
3.6
1.4
34.0
3/30/2020
5.3
4.2
0,4
2.0
4/1/2020
7.0
4.4
0.9
<1.0
4/6/2020
2.4
<2.5
0.7
<1.0
4/7/2020
<2.0
<2.5
0.1
4/8/2020
2.2
2.6
0.1
1.0
4/13/2020
9.0
3.5
0.3
6000.0
4/15/2020
<2.0
<2.5
0.1
<1.0
4/20/2020
5.8
3_8
0.2
668.0
4/22/2020
8.4
4.0
0.1
1.0
4/27/2020
2.8
<2.5
0.1
2.0
4/29/2020
3.3
2.9
0.0
360.0
5/4/2020
2 6
<2.5
0.1
3.0
5/5/2020 <2.0
3.0
0.1
5/6/2020
3 8
2.9
0.3
<1,0
5/11/2020
3 1
3.1
0.1
3.0
5/13/2020
3 2
<2.5
0.2
<1.0
5/18/2020
3.1
<2_5
0.1
10
5/20/2020
7.8
6.4
1.9
6000.0
5/26/2020
<2.0
<2.5
0.1
<1.0
5/28/2020
<2_0
<2.5
0.3
2.0
6/1/2020
<2.0
<2,5
0.1
10
6/2/2020
2.4
<2,5
01
6/3/2020
6/8/2020
6/10/2020
6/15/2020
<2.0
2.8
<2.0
<2.0
<2.5
<2.5
<2.5
<2.5
0.2
2.9
0.1
0.1
<10
<1:0
1.0
4.0
WINTER MONTHS
Date
Effluent NH3-N
mg/L
11/23/2020
0.07
11/25/2020
0.21
11/30/2020
0.22
12/2/2020
0.65
12/7/2020
0.09
12/9/2020
0.29
12/14/2020
0.27
12/16/2020
0,62
12/18/2020
12/21/2020
0.07
12/23/2020
0.12
12/28/2020
0.13
<
12/30/2020
0,28
1/4/2021
0.10
1/6/2021
0.10
1/11/2021
0.07
1/13/2021
0.33
1/19/2021
0-18
1/21/2021
D.76
1/25/2021
0.11
1/27/2021
0.08
2/1/2021
0.07
2/3/2021
0.27
2/8/2021
0.06
2/10/2021
0.07
2/15/2021
0.06
2/17/2021
0.05
2/22/2021
0.07
2/24/2021
0.08
3/1/2021
0.11
3/3/2021
0.08
3/8/2021
0.12
3/10/2021
0.08
3/15/2021
0.15
3/17/2021
0.10
3/22/2021
0.09
3/24/2021
0,08
3/29/2021
0.11
3/31/2021
0.05
11/1/2021
0.19
11/3/2021
0.12
11/8/2021
0.36
11/10/2021
0.06
11/15/2021
0.08
11/17/2021
0 44
11/22/2021
1.10
11/24/2021
0 08
11/29/2021
0.11
12/1/2021
0.36
12/6/2021
0,75
12/8/2021
0.08
12/13/2021
0.11
12/15/2021
<0.04
12/20/2021
4.53
12/22/2021
0.79
12/28/2021
1.04
12/30/2021
0.90
SUMMER MONTHS
Date
Effluent NH3-N
mg/L
6/1/2020
0.11
6/2/2020
0.13
6/3/2020
0.19
6/8/2020
2.91
6/10/2020
0.09
6/15/2020
0.11
6/17/2020
0.46
6/22/2020
0.09
6/24/2020
0.86
6/29/2020
0-09
7/1/2020
0-83
7/6/2020
0.12
7/8/2020
0.46
7/13/2020
0.08
7/15/2020
0.08
7/20/2020
0.12
7/22/2020
0.08
7/27/2020
0.07
7/29/2020
0.24
8/3/2020
0.10
8/5/2020
0.09
8/10/2020
0.08
8/12/2020
0.07
8/17/2020
0.08
8/19/2020
0.06
8/24/2020
0.14
8/26/2020
0.08
8/31/2020
0,24
9/2/2020
0,06
9/8/2020
0,13
9/10/2020
0.49
9/14/2020
0.06
9/16/2020
0.06
9/21/2020
0.16
9/23/2020
0.25
9/28/2020
0.54
9/30/2020
0.47
10/5/2020
0.15
10/7/2020
0.18
10/12/2020
0.07
10/14/2020
0.42
10/11/2020
0.09
10/21/2020
1.15
10/26/202D
0.19
10/28/202D
0.72
4/5/2421
0.13
4/7/2021
0.18
4/120021
0.09
4/14/2021
0.10
4/19/2021
0.09
4/21/2021
0.08
4/26/2021
<0.04
4/28/2021
0.07
5/3/2021
0.13
5/5/2021
0,08
5/10/2021
0.11
5/12/2021
0,09
5/17/2021
0.14
5/19/2021
0.04
5/24/2021
0.05
5/26/2021
0.05
6/1/2021
0.06
6/3/2021
0.07
6/7/2021
<0.04
6/9/2021
0.07
6/14/2021
0.08
6/16/2021
0.08
6/21/2021
0.06
6/23/2021
0 08
6/28/2021
0 10
6/30/2021
0.09
7/6/2021
0 33
7/8/2021
0 08
7/12/2021
0 11
7/14/2021
0 48
7/19/2021
0 08
7/21/2021
0 10
7/26/2021
0.54
7/28/2021
0.14
8J212021
0.13
8/4/2021
0.08

ATTACHE MENTI
REQUEST FOR REDUCED MONITORING FOR EXCEPTIONALLY PERFORMING FACILITIES
Town of Rutherfordton WWTP(NC0025909)
DMR Data (1/1/2019 - 12/31/2021)
Date
Effluent BOD
Effluent TSS
Eff NH3 N
Effluent Fecal
mg/L
mg/L
mg/I
4/100 ml
6/17/2020
<2.0
<2.5
0 5
1.0
6/22/2020
<2.0
<2.5
0.1
16,0
6/24/2020
<2.0
<2.5
0.9
<1,0
6/29/2020
<2.0
<2.5
01
24,0
7/1/2020
<2.0
<2.5
0.8
2.0
7/6/2020
<2.0
<2.5
0.1
90
7/8/2020
3.2
<2.5
0.5
5.0
7/13/2020
<2.0
<2.5
0.1
7.0
7/1 f2020
2.0
<2.5
0.1
1.0
7/20/2020
<2.0
<2.5
0.1
3.0
7/22/2020
<2.0
<2.5
0.1
<1.0
7/27/2020
<2.0
<2,5
0.1
<1.0
7/29/2020
<2.0
<2.5
0.2
2.0
8/3/2020
-I
<20
<2.5
0.1
50.0
8/5/2020
<2.0
<2.5
0.1
<1.0
8/10/2020
<2.0
<2.5
0.1
51.0
8/12/2020
<2.0
<2 5
0.1
25.0
8/17./2020
<2.0
<2.5
0.1
11.0
9.119/2020
<2.0
<2.5
0,1
28.0
8/24/2020
<2.0
<2.5
0.1
10.0
8/26/2020
<2.0
<2.5
0.1
3.0
6/31/2020
<2-0
<2.5
0.2
12.0
9/2/2020
<2 0
<2-5
0.1
18.0
9/8/2020
<2,0
<2.5
0.1
5.0
9/10/2026
<2,0
<2.5
0,5
4,0
9/14/2020
<2,0
<2.5
0.1
14.0
9/16/2020
<2.0
<2.5
0.1
4.0
9/21/2020
<2.0
<2.5
0.2
6.0
9/23/2020
<2.0
<2.5
0.3
9.0
9/28/2020
<2.0
<2,5
0.5
<1.0
9/30/2020
3.7
<2.5
0.5
3.0
10/5/2020
<2.0
<2.5
0.2
<1.0
10/7/2020
<2.0
<2.5
0.2
7.0
10/12/2020
2.9
<2.5
0.1
24.0
10/14/2020
<2.0
<2.5
0-4
2.0
10/19/2020
<2,0
<25
0.1
31.0
10/21/2020
3.9
2.7
1-2
5.0
10/26/2020
3.5
<2.5
0.2
6.0
10/28/2020
2.2
2.6
0.7
1.0
11/2/2020
<2.0
<2.5
0,1
9.0
11/4/2020
<2.0
<2.5
0.1
43.0
11/9/2020
<2.0
<2.5
03
8,0
11/11/2020
<2.0
<2.5
0,1
4100.0
11,/16/2020
<2.0
<2.5
0.1
27.0
11/18/2020
<2.0
<2.5
0.6
8.0
11/23/2020
<2.0
<2.5
0.1
15.0
11/25/2020,
<2.0
<2.5
0.2
4.0
11/30/2020
3.1
<2.5
0.2
56.0
12/2/2020
3 5
2.5
0.7
6.0
12/7/2020
49
2.8
0.1
146.0
12/9/2020
3.7
3,1
0.3
1.0
12/14/2020
3.4
<2.5
0.3
6000.0
12/16/2020
3.0
2.9
0.6
2200.0
12/18/2020
<1.0
12/21/2020
2.3
<2.5
0.1
3.0
12/23/2020
3.5
27
0.1
3.0
12/28/2020
2.1
26
0.1
1.0
1 230/2020
3.2
2.6
0 3
3.0
1/4/2021
3.1
<2.5
0.1
2
1/6/2021
3.7
<2.5
0_1
1.0
1/11/2021
4.5
2.8
0.1
<1.0
1/13/2021
3.7
3.3
0,3
1.0
1/19/2021
4.5
5.3
0.2
<1.0
1/21/2021
4.3
4.9
0.8
<1 0
1/25/2021
12.0
7.4
0.1
<1.0
1/27/2021
3.4
<2.5
0.1
1.0
2,/112021
6.1
3.0
0.1
220.0
2/3/2021
6.3
4.3
0.3
25.0
2/8/2021
4.2
3.3
0.1
<1.0
2/10/2021
3.6
2.5
0.1
2.0
2/15/2021
4.7
3.0
0.1
<1.0
2/17/2021
6.0
4.3
0.1
1.0
2/22/2021
4.4
3.5
0.1
10.0
2/24/2021
3.3
3.0
0.1
2.0
WINTER MONTHS
Date
Effluent NH3-N
rng/L
Average
0.39
NPDES Monthly
Avg Limit (Winter)
4.7
50% of Monthly
Average Limit
2.4
;200% of Weekly
Avg
28.2
Ik samples > 200%
of Weekly Avg
0,0
SUMMER MONTHS
Date
Effluent NH3-N
mg/L
8/9/2021
0.12
8/11/2021
0.07
8/16/2021
0.11
8/18/2021
0.11
6/23/2021
0.07
8/25/2021
0.58
8/30/2021
0.08
9/1/2021
0.16
9/7/2021
0.10
9/9/2021
0.05
9/13/2021
0,37
9/15/2021
0_10
9/20/2021
0.16
9/22/2021
0.09
9/27/2021
0.10
9/29/2021
0.41
10/4/2021
0 19
10/6/2021
0 12
10/11/2021
0 07
10/13/2021
0.85
10/18/2021
0.08
10/20/2021
0.30
10/25/2021
0.11
10/27/2021
0.33

ATTACHEMENT I
REQUEST FOR REDUCED MONITORING FOR EXCEPTIONALLY PERFORMING FACILITIES
Town of Rutherfordton WWTP (NC0025909)
DMR Data (1/1/2019 - 12/31/2021)
Date
Effluent BOO
Effluent TS5
Eff NH3 N
Effluent Fecal
mg/L
mg/1
mg/I
A/100 ml
3/1/2021
4.0
2.6
0.1
5.0
3/3/2021
3.5
<2.5
0.1
1.0
3/8/2021
3.8
<2.5
0.1
1.0
3/19/2021
4.0
3.2
01
<1.0
3/15/2071
<2.0
<2.5
0,2
<1.0
3/17/2021
4.1
3.5
0.1
<1.0
3/22/2021
2.5
<2.5
0.1
<1.0
3/24/2021
5.8
4.8
0.1
2.0
3/29/2021
4.8
3.0
0.1
1.0
3/31/2021
3.4
2.9
0.1
1.0
4/5/2021
4 3
4.0
" 0.1
1.0
4/7/2021
3.6
4.3
0.2
<1.0
4/12/2021
<2.0
<2.5
0.1
10
4/14/2021
3.2
<2.5
0.1
2.0
4/19/2021
<2.0
<2-5
0.1
1.0
4/21/2021
<2,0
<2.5
0.1
1.0
4/26/2021
<2.0
<2.5
<0,04
1.0
4/28/2021
2.3
<2.5
0.1
<1.0
5/3/2021
3.4
51
0.1
1.0
5/5/2021
2.8
3 6
0.1
8.0
5/10/2021
3.1
<2.5
0.1
1.0
5/12/2021
3.7
3.7
0.1
5.0
5/17/2021
5.2
3,1
0.1
2-0
5/19/2021
2.9
<2,5
0.0
<1-0
5/24/2021
2.8
3.2
0.1
1_0
5/26/2021
2.5
<2.5
0.1
2-0
6/1/2021
<2 0
<2.5
0.1
3.0
6/3/2021
2 5
<2.5
0.1
3.0
6/7/2021
2.1
2.7
<0.04
1.0
6/9/2021
<2.0
<25
0.1
3.0
6/14/2021
2.2
<2.5
0.1
7.0
6/16/2021
2.6
<2.5
0.1
3.0
6/21/2021
<2.0
<2.5
0.1
1.0
6/23/2021
<2.0
<2.5
0.1
5.0
6/28/2021
<2.0
<2.5
0.1
11.0
6/30/2021
<2.0
<2.5
0.1
10,0
7/6/2021
<2.0
<2.5
0.3
<1,0
7/8/2021
<2.0
<2.5
0,1
3.0
1/12/2021
<2.0
<2.5
0,1
12.0
7/14/2021
<2.0
<2.5
0.5
45.0
7/19/2021
<2.0
<2.5
0.1
210
7/21/2021
<2.0
<2S
0.1
1.0
7/26./2021
<2.0
<25
0.5
46.0
7/28/2021
<2.0
<25
0.1
12.0
8/2/2021
<2.0
<2-5
0.1
2.0
8/4/2021
<2.0
<23
0.1
8.0
8/9/2021
<2 0
<2S
0.1
4.0
8/11/2021
<2.0
<2.5
0.1
9.0
8/16/2021
<2.0
3.5
0.1
210.0
8/18/2021
<2.0
<2.5
0.1
4.0
8/23/2021
<2.0
<2.5
0.1
56.0
8/25/2021
3.2
<2.5
0.6
6.0
8/30/2021
<20
<2.5
0.1
12.0
9/1/2021
<2.0
<2.5
0.2
127 0
9/7/2021
<2.0
<2.5
0.1
50.0
9/9/2021
<2.0
<2_5
0.1
200.0
9/13/2021
<2.0
<2.5
0.4
11 0
9/15/2021
<2.0
<2_5
0.1
610
9/20/2021
<2.0
<2.5
0.2
42.0
9/22/2021
<2.0
<2.5
0.1
41.0
9/27/2021
<2.0
<2.5
0.1
62.0
9/29/2021
<2.0
<2.5
0.4
1.0
10/4/2021
<2.0
<2.5
0.2
310.0
10/6/2021
<2.0
<2.5
0.1
5.0
10/11/2021
<2.0
<2.5
0.1
<1.0
10/13/2021
<2.0
<2.5
0,9
1.0
10/18/2021
<2.0
<2.5
0,1
8.0
10/20/2021
<2.0
<2.5
0.3
<1.0
10/25/2021
<2.0
<2.5
0.1
30.0
10/27/2021
<2 0
<2.5 J
0.3
2.0
11/1/2021
<2.0
<2.5
0.2
3.0
11/3/2021
<2.0
<2.5
0_1
2.0
11/8/2021
<2.0
<25
0.4
5.0
11/10/2021
<2-0
<2.5
0,1
41.0
WINTER MONTHS
Date
Effluent NH3-N
mg/L
`-3bl,�J SI, Fr`a!� Irk
Date
Effluent NH3-N
mg/L
,average
0.26
NPDES Monthly
.Avg Limit
Minter)
inter)
2.0
:50%of Monthly
.average Limit
1.0
200% of Weekly
,4vg
12,0
8 samples >
200% of Weekly
Avg
0,0

ATTACHEMENT I
REQUEST FOR REDUCED MONITORING FOR EXCEPTIONALLY PERFORMING FACILITIES
Town of Rutherfordton WWTP (NC0025909)
DMR Data (1/1/2019 - 12/31/2021)
Date
Effluent BOD
Effluent TSS
Eff NH3 N
Effluent Fecal
mg/L
mg/L
mg/I
p/100 ml
11/15/2021
<2.0
<2.5
0,1
31.0
11/17/2021
<2.0
<2.5
0.4
7.0
11/22/2021
<2.0
<2.5
1,1
2.0
11/24/2021
<2.0
<2.5
0.1
19,0
11/29/2021
<2.0
<2.5
0.1
<1,0
12/1/2021
<2.0
<2.5
0.4
<1,0
12/6/2021
<2.0
<2.5
0.8
<1,0
12/8/2021
<2,0
<2-5
0.1
4,0
12/13/2021
2,9
<2.5
0.1
1,0
12/ 15/2021
2.6
<2.5
<0.04
1.0
12/20/2021
5.5
3 3
4.5
1.0
12/22/2021
3.3
<2.5
0.8
<1.0
12/2 B/2021
2.9
6.2
1.0
1.0
12/30/2021
5.6
5,3
0.9
<1.0
,Average
3.7
3.9
7.6
NPDES Monthly
Avg Limit
30.0
30 0
200.0
Weekly Avg
Limit
45.0
45.0
400.0
50% of Monthly
Avg Limit
15.0
15.0
100.0
200% of Weekly
Avg
90.0
90.0
800.0
N samples >
200% of Weekly
Avg
0
0
10
WINTER MONTHS
Date
Effluent NH3-N
mg/L
QUALIFICATION & JUSTIFICATION FOR REQUEST FOR REDUCED MONITORING
1) Requlremenl: mean < 50% of monthly average
BOD Avg of 3.7 mg/I is <15 mg/I (50% of BOD Monthly Avg)
TSS Avg of 3.9 mg/I is < 15 mg/I (50% of TSS Monthly Avg)
Fecal Coliform Geomean Avg of 7.6/100 ml is < 100/100 ml (50% of Fecal Coliform Monthly Avg)
NH3-N Winter Avg of 0.26 mg/I is < 2.4 mg/I (50% of NH3-N Winter Monthly Avg)
NH3-N Summer Avg of 0.39 mg/I is < 1.0 mg/I (50% of NH3-N Summer Monthly Avg)
2) No more than 15 daily samples can be > 200% of the weekly average limit
BOD: 0 Samples > 200% of weekly avg limit
TSS: 0 Samples > 200% of weekly avg limit
NH3-N (Winter): 0 Samples > 200% of weekly avg limit
NH3-N (Summer): 0 Sample > 200% of weekly avg limit.
3) No more than 20 daily samples can be > 200% of the weekly average limit
Fecal Coliform: 10 Samples > 200% of weekly avg limit
4) Sampling results shall not show more than two non -monthly avg. limit violations in past year
0 non -monthly violations occurred during th review period (1/1/2016 - 12/31/2020)
SLIMMER MONTHS
Effluent NH3-N
mg/L J
Date

ATTACHMENT VI I
CHEMICAL ADDENDUM TO NPDES APPLICATION

CAS number
Method Number (if 
Applicable)
Signed by:
Signature Printed Name Date
Date:
Pollutant (Required)Reason Pollutant Believed Present in Discharge
Estimated Concentration    (If 
Known)
EPA Identification Number NPDES Number Facility Name Outfall Number
NC0025909 Rutherfordton WWTP 1
No pollutants were monitored that was not reported on the DMRs
Doug Barrick , Town Manager 8/30/2022
August 30, 2022
March 17, 2021
1
Coco, Nick A
From:Blackwell, Nadine <[e-mail]>
Sent:Monday, August 8, 2022 2:50 PM
To:Coco, Nick A
Cc:Montebello, Michael J; Heim, Tim; Barrick, Doug; Reynolds, Phillip
Subject:[External] Re: Additional Information Request: NC0025909 Rutherfordton WWTP
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to 
Report Spam. 

Hello,  

The current NPDES Permit requires the monitoring of combined Nitrate and Nitrite on a quarterly basis.  There is no 
additional monitoring results for Nitrate only.  With the absence of Nitrate data, the Town is requesting the reissued 
Permit include a schedule of compliance to allow a 3‐year period to assess the true level of Nitrate in the discharge.  

On Thu, Aug 4, 2022 at 10:48 AM Coco, Nick A <[e-mail]> wrote: 
Hi Nadine, 

I hope all is well on your end. 

I have just about finished drafting the renewal NPDES permit NC0025909 for the Rutherfordton WWTP and wanted to 
bring your attention one of the changes to be made to the permit: 

 Based on the reasonable potential analysis (RPA) showing reasonable potential to violate state water quality 
standards for protection of downstream WS‐IV water uses, nitrate limits and monthly monitoring have been 
added to the permit [See A.(1) and A.(2.)]. 

These changes will also be noted on the cover letter to your draft permit, but I wanted to just make you aware of the 
changes ahead of time, in case there were any arrangements you wanted to get ahead of.  

Regarding the proposed limit, upon request and justification, Permittees may be granted Schedules of Compliance for 
newly added limits in their permits. I bring this up because the Rutherfordton WWTP did report nitrate samples 
detected at levels near or above the parameter’s allowable discharge concentrations. If you wish to have 
a compliance schedule, please let me know. If you believe that you will be able to achieve compliance with your permit 
limits upon the effective date of the permit, we can skip the compliance schedule. 
2

Summary of data 
Parameter Flow Tier Maximum 
Reported 
Concentration 
Maximum 
Predicted 
Concentration 
Allowable 
Discharge 
Concentration 
RPA Analysis 
Decision 
Nitrate 1.0 MGD 17.0 mg/L 24.9 mg/L MA 22.0 mg/L RP shown ‐ apply 
Monthly Monitoring 
with Limit 
3.0 MGD 17.0 mg/L 24.9 mg/L MA 14.0 mg/L RP shown ‐ apply 
Monthly Monitoring 
with Limit 

 Let me know if you would like to have a compliance schedule for nitrate whenever you get the chance. 

Best, 
Nicholas A. Coco, PE 
Engineer III 
NPDES Municipal Permitting Unit 
NC DEQ / Division of Water Resources / Water Quality Permitting 

919 707‐3609    office 
919 707 9000    main office 
[e-mail] 

Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604 
Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699‐1617 

I'm working at home due to the State of Emergency and DWR policy for Covid-19. Thanks for being patient as
we try to stay safe. 
**Email is preferred but I am available to talk by via Microsoft Teams** 

3

Email correspondence to and from this address is subject to the 
North Carolina Public Records Law and may be disclosed to third parties. 

Permit No. NC0025909
Page 1 of 4

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 Quality Standards/Aquatic Life Protection
Parameter Acute FW, µg/l
(Dissolved)
Chronic FW, µg/l
(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
2B.0200 (e.g., arsenic at 10 µg/l 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/l
Cadmium, Acute WER*{1.136672-[ln hardness](0.041838)} ∙ e^{0.9151 [ln hardness]-3.1485}
Cadmium, Acute Trout waters WER*{1.136672-[ln hardness](0.041838)} ∙ e^{0.9151[ln hardness]-3.6236}
Cadmium, Chronic WER*{1.101672-[ln hardness](0.041838)} ∙ e^{0.7998[ln hardness]-4.4451}
Chromium III, Acute WER*0.316 ∙ e^{0.8190[ln hardness]+3.7256}
Chromium III, Chronic WER*0.860 ∙ e^{0.8190[ln hardness]+0.6848}
Copper, Acute WER*0.960 ∙ e^{0.9422[ln hardness]-1.700}
Copper, Chronic WER*0.960 ∙ e^{0.8545[ln hardness]-1.702}
Lead, Acute WER*{1.46203-[ln hardness](0.145712)} ∙ e^{1.273[ln hardness]-1.460}
Lead, Chronic WER*{1.46203-[ln hardness](0.145712)} ∙ e^{1.273[ln hardness]-4.705}
Nickel, Acute WER*0.998 ∙ e^{0.8460[ln hardness]+2.255}
Nickel, Chronic WER*0.997 ∙ e^{0.8460[ln hardness]+0.0584}
Permit No. NC0025909
Page 2 of 4

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 concer n,
based on recent effluent data, and calculate the allowable effluent concentrations, based on applicable
standards and the critical low-flow values for the receiving stream.
If the maximum predicted value is greater than the maximum allowed value (chronic or acute), the
discharge has reasonable potential to exceed the standard, which warrants a permit limit in most cases. If
monitoring for a particular pollutant indicates that the pollutant is not present (i.e. consistently below
detection level), then the Division may remove the monitoring requirement in the reissued permit.
1. To perform a RPA on the Freshwater hardness-dependent metals the Permit Writer compiles the
following information:
• Critical low flow of the receiving stream, 7Q10 (the spreadsheet automatically calculates
the 1Q10 using the formula 1Q10 = 0.843 (s7Q10, cfs) 0.993
• Effluent hardness and upstream hardness, site-specific data is preferred
• Permitted flow
• Receiving stream classification

2. In order to establish the numeric standard for each hardness-dependent metal of concern and for
each individual discharge, the Permit Writer must first determine what effluent and instream
(upstream) hardness values to use in the equations.

The permit writer reviews DMR’s, Effluent Pollutant Scans, and Toxicity Test results for any
hardness data and contacts the Permittee to see if any additional data is available for instream
hardness values, upstream of the discharge.

If no hardness data is available, the permit writer may choose to do an initial evaluation using a
default hardness of 25 mg/L (CaCO3 or (Ca + Mg)). Minimum and maximum limits on the
hardness value used for water quality calculations are 25 mg/L and 400 mg/L, respectively.

If the use of a default hardness value results in a hardness-dependent metal showing reasonable
potential, the permit writer contacts the Permittee and requests 5 site-specific effluent and
upstream hardness samples over a period of one week. The RPA is rerun using the new data.

Permit No. NC0025909
Page 3 of 4

The overall hardness value used in the water quality calculations is calculated as follows:
Combined Hardness (chronic)
= (Permitted Flow, cfs *Avg. Effluent Hardness, mg/L) + (s7Q10, cfs *Avg. Upstream Hardness, mg/L)
(Permitted Flow, cfs + s7Q10, cfs)
The Combined Hardness for acute is the same but the calculation uses the 1Q10 flow.
3. The permit writer converts the numeric standard for each metal of concern to a total recoverable
metal, using the EPA Default Partition Coefficients (DPCs) or site-specific translators, if any
have been developed using federally approved methodology.

4. The numeric standard for each metal of concern is divided by the default partition coefficient (or
site-specific translator) to obtain a Total Recoverable Metal at ambient conditions.

In some cases, where an EPA default partition coefficient translator does not exist (ie. silver), the
dissolved numeric standard for each metal of concern is divided by the EPA conversion factor to
obtain a Total Recoverable Metal at ambient conditions. This method presumes that the metal is
dissolved to the same extent as it was during EPA’s criteria development for metals. For more
information on conversion factors see the June, 1996 EPA Translator Guidance Document.

5. The RPA spreadsheet uses a mass balance equation to determine the total allowable concentration
(permit limits) for each pollutant using the following equation:

Ca = (s7Q10 + Qw) (Cwqs) – (s7Q10) (Cb)
Qw
Where: Ca = allowable effluent concentration (µg/L or mg/L)
Cwqs = NC Water Quality Standard or federal criteria (µg/L or mg/L)
Cb = background concentration: assume zero for all toxicants except NH3* (µg/L or mg/L)
Qw = permitted effluent flow (cfs, match s7Q10)
s7Q10 = summer low flow used to protect aquatic life from chronic toxicity and human
health through the consumption of water, fish, and shellfish from noncarcinogens (cfs)
* Discussions are on-going with EPA on how best to address background concentrations

Flows other than s7Q10 may be incorporated as applicable:
1Q10 = used in the equation to protect aquatic life from acute toxicity
EPA default partition coefficients or the “Fraction Dissolved” converts the value for
dissolved metal at laboratory conditions to total recoverable metal at in-stream
ambient conditions. This factor is calculated using the linear partition coefficients
found in The Metals Translator: Guidance for Calculating a Total Recoverable
Permit Limit from a Dissolved Criterion (EPA 823-B-96-007, June 1996) and the
equation:

_Cdiss__ = _______1_______________
Ctotal 1 + { [Kpo] [ss(1+a)] [10-6] }

Where:
ss = in-stream suspended solids concentration [mg/l], 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.

Permit No. NC0025909
Page 4 of 4

QA = used in the equation to protect human health through the consumption of water,
fish, and shellfish from carcinogens
30Q2 = used in the equation to protect aesthetic quality

6. The permit writer enters the most recent 2-3 years of effluent data for each pollutant of concern.
Data entered must have been taken within four and one-half years prior to the date of the permit
application (40 CFR 122.21). The RPA spreadsheet estimates the 95th percentile upper
concentration of each pollutant. The Predicted Max concentrations are compared to the Total
allowable concentrations to determine if a permit limit is necessary. If the predicted max exceeds
the acute or chronic Total allowable concentrations, the discharge is considered to show
reasonable potential to violate the water quality standard, and a permit limit (Total allowable
concentration) is included in the permit in accordance with the U.S. EPA Technical Support
Document for Water Quality-Based Toxics Control published in 1991.

7. When appropriate, permit writers develop facility specific compliance schedules in accordance
with the EPA Headquarters Memo dated May 10, 2007 from James Hanlon to Alexis Strauss on
40 CFR 122.47 Compliance Schedule Requirements.

8. The Total Chromium NC WQS was removed and replaced with trivalent chromium and
hexavalent chromium Water Quality Standards. As a cost savings measure, total chromium data
results may be used as a conservative surrogate in cases where there are no analytical results
based on chromium III or VI. In these cases, the projected maximum concentration (95th %) for
total chromium will be compared against water quality standards for chromium III and
chromium VI.

9. Effluent hardness sampling and instream hardness sampling, upstream of the discharge, are
inserted into all permits with facilities monitoring for hardness-dependent metals to ensure the
accuracy of the permit limits and to build a more robust hardness dataset.

10. Hardness and flow values used in the Reasonable Potential Analysis for this permit included:
Parameter Value Comments (Data Source)
Average Effluent Hardness (mg/L)
[Total as, CaCO3 or (Ca+Mg)]
44.22 Average from January 2018 to May
2022 samples
Average Upstream Hardness (mg/L)
[Total as, CaCO3 or (Ca+Mg)]
31.22 Average from January 2018 to May
2022 samples
7Q10 summer (cfs) 1.86 USGS 1990 Low Flow Report
1Q10 (cfs) 1.56 Calculated in RPA
Permitted Flow (MGD) 1.0 NPDES Files

Date: _____8/1/2022________________________

Permit Writer: ______Nick Coco________________
REQUIRED DATA ENTRY
Name WQS Type Chronic Modifier Acute PQL Units
Facility Name Rutherfordton WWTP Par01 Arsenic Aquactic Life C 150 FW 340 ug/L
WWTP/WTP Class III Par02 Arsenic Human Health
Water Supply C 10 HH/WS N/A ug/L
NPDES Permit NC0025909 Par03 Beryllium Aquatic Life NC 6.5 FW 65 ug/L
Outfall 001 Par04 Cadmium Aquatic Life NC 0.7955 FW 4.6366 ug/L
Flow, Qw (MGD)1.000 Par05 Chlorides Water Supply NC 250 WS mg/L
Receiving Stream Cleghorn Creek Par06 Chlorinated Phenolic Compounds Water Supply NC 1 A ug/L
HUC Number 03050105 Par07 Total Phenolic Compounds Aquatic Life NC 300 A ug/L
Stream Class Par08 Chromium III Aquatic Life NC 162.7640 FW 1266.9732 ug/L
Par09 Chromium VI Aquatic Life NC 11 FW 16 µg/L
7Q10s (cfs)1.860 Par10 Chromium, Total Aquatic Life NC N/A FW N/A µg/L
7Q10w (cfs)2.88 Par11 Copper Aquatic Life NC 11.0489 FW 15.4200 ug/L
30Q2 (cfs)4.02 Par12 Cyanide Aquatic Life NC 5 FW 22 10 ug/L
QA (cfs)12.00 Par13 Fluoride Aquatic Life NC 1,800 FW ug/L
1Q10s (cfs)1.56 Par14 Lead Aquatic Life NC 4.5842 FW 119.6560 ug/L
Effluent Hardness 44.22 mg/L (Avg)Par15 Mercury Aquatic Life NC 12 FW 0.5 ng/L
Upstream Hardness 31.22 mg/L (Avg)Par16 Molybdenum Water Supply NC 160 WS ug/L
Combined Hardness Chronic 37.13 mg/L Par17 Nickel Aquatic Life NC 52.0245 FW 474.4721 µg/L
Combined Hardness Acute 37.7 mg/L Par18 Nickel Water Supply NC 25.0000 WS N/A µg/L
Data Source(s)Par19 Selenium Aquatic Life NC 5 FW 56 ug/L
Par20 Silver Aquatic Life NC 0.06 FW 0.6007 ug/L
Par21 Zinc Aquatic Life NC 177.1796 FW 178.0248 ug/L
Par22 Chloroform Water Supply NC 60 WS µg/L
Par23
Par24
Follow directions for data entry. In some cases a
comment menu list the available choices or a
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria.
To appy a Model IWC %: Once the
"Flow, Qw (MGD)" and and the
"CHRONIC DILUTION FACTOR =
" values are entered, the 7Q10s
(cfs) flow is calculated and
displayed. Enter the calculated
"7Q10s (cfs)" flow value in Table 1.
Table 1. Project Information Table 2. Parameters of Concern
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
C; upstream of WS-IV waters
CHECK IF HQW OR ORW WQS
CHECK TO APPLY MODEL
Apply WS Hardness WQC
25909 RPA, input
8/2/2022
REQUIRED DATA ENTRY
Name WQS Type Chronic Modifier Acute PQL Units
Facility Name Rutherfordton WWTP Par01 Arsenic Aquactic Life C 150 FW 340 ug/L
WWTP/WTP Class III Par02 Arsenic Human Health
Water Supply C 10 HH/WS N/A ug/L
NPDES Permit NC0025909 Par03 Beryllium Aquatic Life NC 6.5 FW 65 ug/L
Outfall 001 Par04 Cadmium Aquatic Life NC 0.8496 FW 4.9840 ug/L
Flow, Qw (MGD)3.000 Par05 Chlorides Water Supply NC 250 WS mg/L
Receiving Stream Cleghorn Creek Par06 Chlorinated Phenolic Compounds Water Supply NC 1 A ug/L
HUC Number 03050105 Par07 Total Phenolic Compounds Aquatic Life NC 300 A ug/L
Stream Class Par08 Chromium III Aquatic Life NC 174.7878 FW 1355.8734 ug/L
Par09 Chromium VI Aquatic Life NC 11 FW 16 µg/L
7Q10s (cfs)1.860 Par10 Chromium, Total Aquatic Life NC N/A FW N/A µg/L
7Q10w (cfs)2.88 Par11 Copper Aquatic Life NC 11.9019 FW 16.6711 ug/L
30Q2 (cfs)4.02 Par12 Cyanide Aquatic Life NC 5 FW 22 10 ug/L
QA (cfs)12.00 Par13 Fluoride Aquatic Life NC 1,800 FW ug/L
1Q10s (cfs)1.56 Par14 Lead Aquatic Life NC 5.0518 FW 131.2383 ug/L
Effluent Hardness 44.22 mg/L (Avg)Par15 Mercury Aquatic Life NC 12 FW 0.5 ng/L
Upstream Hardness 31.22 mg/L (Avg)Par16 Molybdenum Water Supply NC 160 WS ug/L
Combined Hardness Chronic 40.5 mg/L Par17 Nickel Aquatic Life NC 55.9991 FW 508.9010 µg/L
Combined Hardness Acute 40.95 mg/L Par18 Nickel Water Supply NC 25.0000 WS N/A µg/L
Data Source(s)Par19 Selenium Aquatic Life NC 5 FW 56 ug/L
Par20 Silver Aquatic Life NC 0.06 FW 0.6926 ug/L
Par21 Zinc Aquatic Life NC 190.7375 FW 190.9633 ug/L
Par22 Chloroform Water Supply NC 60 WS µg/L
Par23
Par24
Follow directions for data entry. In some cases a
comment menu list the available choices or a
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria.
To appy a Model IWC %: Once the
"Flow, Qw (MGD)" and and the
"CHRONIC DILUTION FACTOR =
" values are entered, the 7Q10s
(cfs) flow is calculated and
displayed. Enter the calculated
"7Q10s (cfs)" flow value in Table 1.
Table 1. Project Information Table 2. Parameters of Concern
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
C; upstream of WS-IV waters
CHECK IF HQW OR ORW WQS
CHECK TO APPLY MODEL
Apply WS Hardness WQC
25909 RPA, input
8/2/2022
REASONABLE POTENTIAL ANALYSIS
H1 H2
Effluent Hardness Upstream Hardness
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 1/2/2018 40 40 Std Dev.10.1574 1 1/2/2018 40 40 Std Dev.6.4129
2 2/5/2018 44 44 Mean 44.2157 2 2/5/2018 36 36 Mean 31.2195
3 3/5/2018 36 36 C.V.0.2297 3 3/5/2018 32 32 C.V.0.2054
4 4/2/2018 48 48 n 51 4 4/2/2018 32 32 n 41
5 4/30/2018 44 44 10th Per value 35.00 mg/L 5 4/30/2018 12 12 10th Per value 25.00 mg/L
6 6/4/2018 68 68 Average Value =44.22 mg/L 6 7/9/2018 44 44 Average Value =31.22 mg/L
7 7/9/2018 48 48 Max. Value 81.00 mg/L 7 8/6/2018 36 36 Max. Value 48.00 mg/L
8 8/6/2018 48 48 8 9/4/2018 32 32
9 9/4/2018 36 36 9 10/1/2018 48 48
10 10/1/2018 64 64 10 11/5/2018 36 36
11 11/5/2018 56 56 11 1/7/2019 27 27
12 12/3/2018 45 45 12 2/4/2019 28 28
13 1/7/2019 31 31 13 3/4/2019 20 20
14 2/4/2019 40 40 14 5/6/2019 36 36
15 3/4/2019 72 72 15 6/3/2019 32 32
16 4/10/2019 38 38 16 7/8/2019 27 27
17 5/6/2019 55 55 17 8/5/2019 35 35
18 6/3/2019 48 48 18 9/3/2019 30 30
19 7/8/2019 31 31 19 12/2/2019 25 25
20 8/5/2019 35 35 20 1/6/2020 32 32
21 9/3/2019 49 49 21 4/6/2020 40 40
22 10/7/2019 41 41 22 6/1/2020 26 26
23 12/2/2019 35 35 23 8/3/2020 24 24
24 1/6/2020 38 38 24 8/31/2020 30 30
25 2/3/2020 40 40 25 10/12/2020 28 28
26 3/2/2020 44 44 26 11/2/2020 30 30
27 4/7/2020 40 40 27 12/2/2020 28 28
28 5/4/2020 44 44 28 2/1/2021 24 24
29 6/1/2020 81 81 29 3/1/2021 40 40
30 7/6/2020 53 53 30 4/5/2021 26 26
31 8/3/2020 46 46 31 5/3/2021 29 29
32 8/31/2020 42 42 32 6/1/2021 28 28
33 10/12/2020 34 34 33 7/12/2021 31 31
34 11/2/2020 40 40 34 8/2/2021 31 31
35 12/2/2020 32 32 35 9/7/2021 32 32
36 1/4/2021 36 36 36 10/4/2021 30 30
37 2/1/2021 40 40 37 12/6/2021 32 32
38 4/5/2021 40 40 38 1/3/2022 26 26
39 5/3/2021 37 37 39 1/31/2022 33 33
40 6/1/2021 42 42 40 2/28/2022 37 37
41 7/12/2021 57 57 41 4/11/2022 35 35
42 8/2/2021 51 51 42
43 9/7/2021 46 46 43
44 10/4/2021 40 40 44
45 11/1/2021 41 41 45
46 12/6/2021 36 36 46
47 1/3/2022 38 38 47
48 2/28/2022 43 43 48
49 4/11/2022 41 41 49
50 5/2/2022 37 37 50
51 5/31/2022 44 44 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
- 1 -
25909 RPA, data
8/5/2022
REASONABLE POTENTIAL ANALYSIS
Par01 & Par02
Arsenic
Date Data BDL=1/2DL Results
1 7/8/2019 <5 2.5 Std Dev.0.7500
2 1/28/2020 <2 1 Mean 1.5000
3 2/11/2020 <2 1 C.V. (default)0.6000
4 3/17/2020 <2 1 n 9
5 4/7/2020 <2 1
6 5/5/2020 <2 1 Mult Factor =1.81
7 6/2/2020 <2 1 Max. Value 2.5 ug/L
8 1/10/2017 <5 2.5 Max. Pred Cw 4.5 ug/L
9 4/2/2018 <5 2.5
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
- 2 -
25909 RPA, data
8/5/2022
REASONABLE POTENTIAL ANALYSIS
Par04 Par10
Cadmium Chromium, Total
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 7/8/2019 <1 0.5 Std Dev.0.1250 1 7/8/2019 <5 2.5 Std Dev.0.0000
2 1/28/2020 <0.5 0.25 Mean 0.3333 2 1/28/2020 <5 2.5 Mean 2.5000
3 2/11/2020 <0.5 0.25 C.V. (default)0.6000 3 2/11/2020 <5 2.5 C.V. (default)0.6000
4 3/17/2020 <0.5 0.25 n 9 4 3/17/2020 <5 2.5 n 9
5 4/7/2020 <0.5 0.25 5 4/7/2020 <5 2.5
6 5/5/2020 <0.5 0.25 Mult Factor =1.81 6 5/5/2020 <5 2.5 Mult Factor =1.81
7 6/2/2020 <0.5 0.25 Max. Value 0.500 ug/L 7 6/2/2020 <5 2.5 Max. Value 2.5 µg/L
8 1/10/2017 <1 0.5 Max. Pred Cw 0.905 ug/L 8 1/10/2017 <5 2.5 Max. Pred Cw 4.5 µg/L
9 4/2/2018 <1 0.5 9 4/2/2018 <5 2.5
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
- 3 -
25909 RPA, data
8/5/2022
REASONABLE POTENTIAL ANALYSIS
Pa11 Par12
Copper Cyanide
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 1/2/2018 <10 5 Std Dev.1.5757 1 7/8/2019 <5 5 Std Dev.0.0000
2 4/2/2018 <10 5 Mean 5.0313 2 1/10/2017 <5 5 Mean 5.00
3 7/9/2018 <10 5 C.V.0.3132 3 4/2/2018 <5 5 C.V. (default)0.6000
4 10/1/2018 <10 5 n 32 4 n 3
5 1/7/2019 <10 5 5
6 4/10/2019 <10 5 Mult Factor =1.10 6 Mult Factor =3.00
7 7/8/2019 <10 5 Max. Value 10.00 ug/L 7 Max. Value 5.0 ug/L
8 10/7/2019 <10 5 Max. Pred Cw 11.00 ug/L 8 Max. Pred Cw 15.0 ug/L
9 1/6/2020 <10 5 9
10 1/28/2020 3 3 10
11 2/11/2020 3 3 11
12 3/17/2020 4 4 12
13 4/6/2020 <10 5 13
14 4/7/2020 3 3 14
15 5/5/2020 5 5 15
16 6/2/2020 2 2 16
17 7/6/2020 <10 5 17
18 10/12/2020 <10 5 18
19 11/2/2020 3 3 19
20 11/9/2020 5 5 20
21 12/2/2020 4 4 21
22 12/7/2020 6 6 22
23 12/28/2020 5 5 23
24 1/4/2021 5 5 24
25 2/1/2021 9 9 25
26 4/5/2021 5 5 26
27 7/12/2021 7 7 27
28 10/4/2021 5 5 28
29 1/3/2022 7 7 29
30 4/11/2022 5 5 30
31 1/10/2017 10 10 31
32 4/2/2018 <10 5 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
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
- 4 -
25909 RPA, data
8/5/2022
REASONABLE POTENTIAL ANALYSIS
Par14 Par16
Lead Molybdenum
Date BDL=1/2DL Results Date Data BDL=1/2DL Results
1 7/8/2019 <5 2.5 Std Dev.0.6047 1 1/28/2020 <10 5 Std Dev.0.0000
2 1/28/2020 <2 1 Mean 1.2813 2 2/11/2020 <10 5 Mean 5.0000
3 2/11/2020 <2 1 C.V.0.4719 3 3/17/2020 <10 5 C.V. (default)0.6000
4 3/17/2020 <2 1 n 16 4 4/7/2020 <10 5 n 6
5 4/7/2020 <2 1 5 5/5/2020 <10 5
6 5/5/2020 <2 1 Mult Factor =1.36 6 6/2/2020 <10 5 Mult Factor =2.14
7 6/2/2020 <2 1 Max. Value 2.500 ug/L 7 Max. Value 5.0 ug/L
8 11/2/2020 <2 1 Max. Pred Cw 3.400 ug/L 8 Max. Pred Cw 10.7 ug/L
9 11/9/2020 <2 1 9
10 12/2/2020 <2 1 10
11 12/7/2020 <2 1 11
12 12/28/2020 <2 1 12
13 1/4/2021 <2 1 13
14 2/1/2021 <2 1 14
15 1/10/2017 <5 2.5 15
16 4/2/2018 <5 2.5 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
- 5 -
25909 RPA, data
8/5/2022
REASONABLE POTENTIAL ANALYSIS
Par17 & Par18 Par19
Nickel Selenium
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 7/8/2019 <10 5 Std Dev.0.0000 1 7/8/2019 <10 5 Std Dev.2.2500
2 1/28/2020 <10 5 Mean 5.0000 2 1/28/2020 <1 0.5 Mean 2.0000
3 2/11/2020 <10 5 C.V. (default)0.6000 3 2/11/2020 <1 0.5 C.V. (default)0.6000
4 3/17/2020 <10 5 n 9 4 3/17/2020 <1 0.5 n 9
5 4/7/2020 <10 5 5 4/7/2020 <1 0.5
6 5/5/2020 <10 5 Mult Factor =1.81 6 5/5/2020 <1 0.5 Mult Factor =1.81
7 6/2/2020 <10 5 Max. Value 5.0 µg/L 7 6/2/2020 <1 0.5 Max. Value 5.0 ug/L
8 1/10/2017 <10 5 Max. Pred Cw 9.1 µg/L 8 1/10/2017 <10 5 Max. Pred Cw 9.1 ug/L
9 4/2/2018 <10 5 9 4/2/2018 <10 5
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
Use "PASTE
SPECIAL-Values"
then "COPY" .
Maximum data
points = 58
- 6 -
25909 RPA, data
8/5/2022
REASONABLE POTENTIAL ANALYSIS
Par20 Par21
Silver Zinc
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 7/8/2019 <5 2.5 Std Dev.1.1157 1 1/2/2018 63 63 Std Dev.21.7126
2 11/2/2020 <1 0.5 Mean 0.8925 2 4/2/2018 73 73 Mean 57.3462
3 11/9/2020 <0.25 0.125 C.V.1.2501 3 7/9/2018 52 52 C.V.0.3786
4 12/2/2020 <0.25 0.125 n 10 4 10/1/2018 56 56 n 26
5 12/7/2020 <0.25 0.125 5 1/7/2019 37 37
6 12/28/2020 <0.25 0.125 Mult Factor =2.63 6 4/10/2019 43 43 Mult Factor =1.16
7 1/4/2021 <0.25 0.125 Max. Value 2.500 ug/L 7 7/8/2019 67 67 Max. Value 145.0 ug/L
8 2/1/2021 0.3 0.3 Max. Pred Cw 6.575 ug/L 8 10/7/2019 44 44 Max. Pred Cw 168.2 ug/L
9 1/10/2017 <5 2.5 9 1/6/2020 48 48
10 4/2/2018 <5 2.5 10 1/28/2020 45 45
11 11 2/11/2020 48 48
12 12 3/17/2020 49 49
13 13 4/6/2020 47 47
14 14 4/7/2020 46 46
15 15 5/5/2020 67 67
16 16 6/2/2020 37 37
17 17 7/6/2020 145 145
18 18 10/12/2020 38 38
19 19 1/4/2021 36 36
20 20 4/5/2021 48 48
21 21 7/12/2021 79 79
22 22 10/4/2021 66 66
23 23 1/3/2022 58 58
24 24 4/11/2022 66 66
25 25 1/10/2017 61 61
26 26 4/2/2018 72 72
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
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
- 7 -
25909 RPA, data
8/5/2022
REASONABLE POTENTIAL ANALYSIS
Par22 Par23
Chloroform Nitrate
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results
1 1/10/2017 8.3 8.3 Std Dev.2.6514 1 4/1/2019 2.66 2.66 Std Dev.4.0428
2 4/2/2018 10 10 Mean 10.6000 2 7/1/2019 12.3 12.3 Mean 8.3
3 7/8/2019 13.5 13.5 C.V. (default)0.6000 3 7/8/2019 8.8 8.8 C.V.0.5
4 n 3 4 9/30/2019 10 10 n 14
5 5 4/6/2020 3.1 3.1
6 Mult Factor =3.00 6 7/6/2020 9.4 9.4 Mult Factor =1.43
7 Max. Value 13.5 µg/L 7 10/5/2020 10.64 10.64 Max. Value 17 mg/L
8 Max. Pred Cw 40.5 µg/L 8 4/5/2021 7.6 7.6 Max. Pred Cw 25 mg/L
9 9 7/6/2021 6.38 6.38
10 10 10/4/2021 9.62 9.62
11 11 4/4/2022 7.24 7.24
12 12 1/10/2017 17.4 17.4
13 13 4/2/2018 2.16 2.16
14 14 7/8/2019 8.8 8.8
15 15
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 51
52 52
53 53
54 54
55 55
56 56
57 57
58 58
Use "PASTE
SPECIAL-Values"
then "COPY" .
Maximum data
points = 58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
- 8 -
25909 RPA, data
8/5/2022
REASONABLE POTENTIAL ANALYSIS
Par24
TDS
Date Data BDL=1/2DL Results
1 1/10/2017 327 327 Std Dev.71.0422
2 4/2/2018 202 202 Mean 245.0000
3 7/8/2019 206 206 C.V. (default)0.6000
4 n 3
5
6 Mult Factor =3.00
7 Max. Value 327.000000 mg/L
8 Max. Pred Cw 981.000000 mg/L
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Use "PASTE SPECIAL-
Values" then "COPY"
. Maximum data
points = 58
- 9 -
25909 RPA, data
8/5/2022
Rutherfordton WWTP ≥Outfall 001
NC0025909 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 1 MGD
MAXIMUM DATA POINTS = 58
Qw (MGD) = 1.0000 WWTP/WTP Class:III COMBINED HARDNESS (mg/L)
1Q10S (cfs) = 1.56 IWC% @ 1Q10S = 49.8392283 Acute = 37.7 mg/L
7Q10S (cfs) = 1.86 IWC% @ 7Q10S = 45.45454545 Chronic = 37.13 mg/L
7Q10W (cfs) = 2.88 IWC% @ 7Q10W = 34.98871332
30Q2 (cfs) = 4.02 IWC% @ 30Q2 = 27.82764811
Avg. Stream Flow, QA (cfs) = 12.00 IW%C @ QA = 11.43911439 Effluent Hard: 0 value > 100 mg/L
Receiving Stream:Stream Class:C; upstream of WS-IV watersEffluent Hard Avg = 44.22 mg/L
PARAMETER RECOMMENDED ACTION
Chronic Applied
Standard Acute n # Det.Max Pred Cw
Acute (FW):682.2
Arsenic C 150 FW(7Q10s)340 ug/L
9 0 4.5 Chronic (FW):330.0
C.V. (default)Max MDL = 5
Arsenic C 10 HH/WS(Qavg)ug/L Note: n ≤ 9 NO DETECTS Chronic (HH):87.4
Limited data set Max MDL = 5
Acute:9.303
Cadmium NC 0.7955 FW(7Q10s)4.6366 ug/L 9 0 0.905
Note: n ≤ 9 C.V. (default)Chronic:1.750
Limited data set NO DETECTS Max MDL = 1
Acute:2,542.1
Chromium III NC 162.7640 FW(7Q10s)1266.9732 µg/L 0 0 N/A
Chronic:358.1
Acute:32.1
Chromium VI NC 11 FW(7Q10s)16 µg/L 0 0 N/A
Chronic:24.2
Chromium, Total NC µg/L 9 0 4.5
Note: n ≤ 9 C.V. (default)
Limited data set NO DETECTS Max MDL = 5
Acute:30.94
Copper NC 11.0489 FW(7Q10s)15.4200 ug/L 32 19 11.00
Chronic:24.31
No value > Allowable Cw
Acute:44.1
Cyanide NC 5 FW(7Q10s)22 10 ug/L 3 0 15.0
Note: n ≤ 9 C.V. (default)Chronic:11.0
Limited data set NO DETECTS Max MDL = 10
Acute:240.084
Lead NC 4.5842 FW(7Q10s)119.6560 ug/L 16 0 3.400
Chronic:10.085
NO DETECTS Max MDL = 5
Acute:NO WQS
Molybdenum NC 160 WS(7Q10s)ug/L 6 0 10.7
Note: n ≤ 9 C.V. (default)Chronic:352.0
Limited data set NO DETECTS Max MDL = 10
Acute (FW):952.0
Nickel NC 52.0245 FW(7Q10s)474.4721 µg/L
9 0 9.1 Chronic (FW):114.5
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS WATER SUPPLY
PQ
L
UN
I
T
S
TYPE
Allowable Cw
REASONABLE POTENTIAL RESULTSNC STANDARDS OR EPA CRITERIA
Cleghorn Creek HUC 03050105
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
All non-detects < 1 ug/L and < 0.5 ug/L- No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
All non-detect < 5 ug/L - No Monitoring required
Max reported value = 2.5
No RP , Predicted Max ≥ 50% of Allowable Cw -
apply Quarterly Monitoring
a: No monitoring required if all Total Chromium
samples are < 5 µg/L or Pred. max for Total Cr is <
allowable Cw for Cr VI.
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Page 1 of 2
25909 RPA, rpa
8/2/2022
Rutherfordton WWTP ≥Outfall 001
NC0025909 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 1 MGD
Note: n ≤ 9 C.V. (default)Max MDL = 10
Nickel NC 25.0000 WS(7Q10s)µg/L Limited data set NO DETECTS Chronic (WS):55.0
Max MDL = 10
Acute:112.4
Selenium NC 5 FW(7Q10s)56 ug/L 9 0 9.1
Note: n ≤ 9 C.V. (default)Chronic:11.0
Limited data set NO DETECTS Max MDL = 10
Acute:1.205
Silver NC 0.06 FW(7Q10s)0.6007 ug/L 10 1 6.575
Chronic:0.132
5 value(s) > Allowable Cw
Acute:357.2
Zinc NC 177.1796 FW(7Q10s)178.0248 ug/L 26 26 168.2
Chronic:389.8
No value > Allowable Cw
Acute:NO WQS
Chloroform NC 60 WS(7Q10s)µg/L 3 3 40.50000
Note: n ≤ 9 C.V. (default)Chronic:132.000
Limited data set No value > Allowable Cw
All non-detect < 10 ug/L and < 1 ug/L - No Monitoring
required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP , Predicted Max ≥ 50% of Allowable Cw -
apply Quarterly Monitoring
BPJ; apply Monthly Monitoring
Page 2 of 2
25909 RPA, rpa
8/2/2022
Rutherfordton WWTP ≥Outfall 001
NC0025909 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 3 MGD
MAXIMUM DATA POINTS = 58
Qw (MGD) = 3.0000 WWTP/WTP Class:III COMBINED HARDNESS (mg/L)
1Q10S (cfs) = 1.56 IWC% @ 1Q10S = 74.87922705 Acute = 40.95 mg/L
7Q10S (cfs) = 1.86 IWC% @ 7Q10S = 71.42857143 Chronic = 40.5 mg/L
7Q10W (cfs) = 2.88 IWC% @ 7Q10W = 61.75298805
30Q2 (cfs) = 4.02 IWC% @ 30Q2 = 53.63321799
Avg. Stream Flow, QA (cfs) = 12.00 IW%C @ QA = 27.92792793 Effluent Hard: 0 value > 100 mg/L
Receiving Stream:Stream Class:C; upstream of WS-IV watersEffluent Hard Avg = 44.22 mg/L
PARAMETER RECOMMENDED ACTION
Chronic Applied
Standard Acute n # Det.Max Pred Cw
Acute (FW):454.1
Arsenic C 150 FW(7Q10s)340 ug/L
9 0 4.5 Chronic (FW):210.0
C.V. (default)Max MDL = 5
Arsenic C 10 HH/WS(Qavg)ug/L Note: n ≤ 9 NO DETECTS Chronic (HH):35.8
Limited data set Max MDL = 5
Acute:6.656
Cadmium NC 0.8496 FW(7Q10s)4.9840 ug/L 9 0 0.905
Note: n ≤ 9 C.V. (default)Chronic:1.189
Limited data set NO DETECTS Max MDL = 1
Acute:1,810.7
Chromium III NC 174.7878 FW(7Q10s)1355.8734 µg/L 0 0 N/A
Chronic:244.7
Acute:21.4
Chromium VI NC 11 FW(7Q10s)16 µg/L 0 0 N/A
Chronic:15.4
Chromium, Total NC µg/L 9 0 4.5
Note: n ≤ 9 C.V. (default)
Limited data set NO DETECTS Max MDL = 5
Acute:22.26
Copper NC 11.9019 FW(7Q10s)16.6711 ug/L 32 19 11.00
Chronic:16.66
No value > Allowable Cw
Acute:29.4
Cyanide NC 5 FW(7Q10s)22 10 ug/L 3 0 15.0
Note: n ≤ 9 C.V. (default)Chronic:7.0
Limited data set NO DETECTS Max MDL = 10
Acute:175.267
Lead NC 5.0518 FW(7Q10s)131.2383 ug/L 16 0 3.400
Chronic:7.072
NO DETECTS Max MDL = 5
Acute:NO WQS
Molybdenum NC 160 WS(7Q10s)ug/L 6 0 10.7
Note: n ≤ 9 C.V. (default)Chronic:224.0
Limited data set NO DETECTS Max MDL = 10
Acute (FW):679.6
Nickel NC 55.9991 FW(7Q10s)508.9010 µg/L
9 0 9.1 Chronic (FW):78.4
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS WATER SUPPLY
PQ
L
UN
I
T
S
TYPE
Allowable Cw
REASONABLE POTENTIAL RESULTSNC STANDARDS OR EPA CRITERIA
Cleghorn Creek HUC 03050105
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
All non-detects < 1 ug/L and < 0.5 ug/L- No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
All non-detect < 5 ug/L - No Monitoring required
Max reported value = 2.5
No RP , Predicted Max ≥ 50% of Allowable Cw -
apply Quarterly Monitoring
a: No monitoring required if all Total Chromium
samples are < 5 µg/L or Pred. max for Total Cr is <
allowable Cw for Cr VI.
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Page 1 of 2
25909 RPA, rpa
8/2/2022
Rutherfordton WWTP ≥Outfall 001
NC0025909 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 3 MGD
Note: n ≤ 9 C.V. (default)Max MDL = 10
Nickel NC 25.0000 WS(7Q10s)µg/L Limited data set NO DETECTS Chronic (WS):35.0
Max MDL = 10
Acute:74.8
Selenium NC 5 FW(7Q10s)56 ug/L 9 0 9.1
Note: n ≤ 9 C.V. (default)Chronic:7.0
Limited data set NO DETECTS Max MDL = 10
Acute:0.925
Silver NC 0.06 FW(7Q10s)0.6926 ug/L 10 1 6.575
Chronic:0.084
10 value(s) > Allowable Cw
Acute:255.0
Zinc NC 190.7375 FW(7Q10s)190.9633 ug/L 26 26 168.2
Chronic:267.0
No value > Allowable Cw
Acute:NO WQS
Chloroform NC 60 WS(7Q10s)µg/L 3 3 40.50000
Note: n ≤ 9 C.V. (default)Chronic:84.000
Limited data set No value > Allowable Cw
All non-detect < 10 ug/L and < 1 ug/L - No Monitoring
required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP , Predicted Max ≥ 50% of Allowable Cw -
apply Quarterly Monitoring
BPJ; apply Monthly Monitoring
Page 2 of 2
25909 RPA, rpa
8/2/2022
Date Upstream Downstream Date Upstream Downstream
1/2/2018 107 127 8/7/2018 95.7 113
1/8/2018 88.4 103 8/8/2018 95.9 110
1/16/2018 90.5 97.5 8/13/2018 97.4 110
1/22/2018 96.8 119 8/14/2018 100 117
1/29/2018 84.1 95.4 8/15/2018 99.9 116
2/5/2018 83 89.3 8/20/2018 92.6 105
2/12/2018 77.9 83.8 8/21/2018 96.1 109
2/19/2018 90 106 8/22/2018 89.2 110
2/26/2018 92.8 107 8/27/2018 97.4 115
3/5/2018 93.8 102 8/28/2018 98 119
3/12/2018 73.5 88.5 8/29/2018 98.3 117
3/19/2018 89.1 104 9/4/2018 96.4 115
3/26/2018 90.7 103 9/5/2018 102 121
4/2/2018 90.9 103 9/6/2018 95.5 122
4/9/2018 89.6 103 9/10/2018 73.7 92.5
4/16/2018 61.1 65.1 9/11/2018 80.3 98.5
4/23/2018 88.8 98.8 9/12/2018 92.7 109
4/30/2018 87.7 97.8 9/18/2018 92.9 117
5/7/2018 91.7 107 9/19/2018 96.8 116
5/14/2018 90 101 9/20/2018 97.7 120
5/21/2018 91.4 104 9/24/2018 97.5 126
5/29/2018 77 91.3 9/25/2018 96.5 113
5/30/2018 70.6 76.3 9/26/2018 96.3 119
5/31/2018 82.2 90.1 10/1/2018 92.3 108
6/4/2018 86.6 95.7 10/8/2018 96.8 125
6/5/2018 91.5 97.4 10/15/2018 93.4 110
6/6/2018 92 104 10/22/2018 95 210
6/11/2018 80.8 107 10/29/2018 95.4 103
6/12/2018 77.7 86.7 11/5/2018 88 109
6/13/2018 91.2 106 11/12/2018 95.3 114
6/18/2018 94.2 113 11/19/2018 98.3 97.1
6/19/2018 95.5 106 11/26/2018 94.7 93.4
6/20/2018 95.3 114 12/3/2018 90.3 102
6/25/2018 95.5 112 12/11/2018 105 109
6/26/2018 88.1 99.7 12/17/2018 90.5 92.3
6/27/2018 80.8 87.9 12/26/2018 89 90.6
7/2/2018 86 107 12/31/2018 80.9 83.8
7/3/2018 97.6 111 1/7/2019 85.4 89.2
7/5/2018 99.2 120 1/14/2019 107 98.1
7/9/2018 96.2 109 1/22/2019 81.4 85.5
7/10/2018 96.5 98.6 1/28/2019 85.1 90.2
7/11/2018 96.8 111 2/4/2019 84.2 94.9
7/16/2018 97.8 119 2/11/2019 78.2 84.1
7/17/2018 99.3 117 2/18/2019 57.7 60.9
7/18/2018 99.4 122 2/25/2019 76.4 69.6
7/23/2018 91.9 111 3/4/2019 77.6 81.1
7/24/2018 89 101 3/11/2019 79.5 85.2
7/25/2018 74 84.1 3/18/2019 81.2 86.1
7/30/2018 102 124 3/25/2019 80.3 86.1
7/31/2018 98.9 127 4/1/2019 75.8 84.9
8/1/2018 94.9 119 4/8/2019 75.9 86.6
8/6/2018 94.7 107 4/15/2019 80.4 84.3
4/22/2019 115 91.3 9/23/2019 252 111
NC0025909 Instream Conductivity Analysis [umhos/cm]
4/29/2019 82.3 91.1 9/24/2019 94.3 100
5/6/2019 86.6 93.7 9/25/2019 86.2 97.1
5/13/2019 81.1 88.4 9/30/2019 84.8 110
5/20/2019 84.7 94.6 10/7/2019 84.2 102
5/28/2019 85.1 101 10/14/2019 78.2 99.8
6/3/2019 83.1 99 10/21/2019 87.7 105
6/4/2019 85.7 93.1 10/28/2019 862 104
6/5/2019 85.3 97.9 11/5/2019 86.9 97.9
6/10/2019 61.6 65.4 11/11/2019 119 95.5
6/11/2019 73.6 77.1 11/18/2019 85 97
6/12/2019 112 84.2 11/25/2019 88 90
6/17/2019 84.6 99 12/2/2019 85 94
6/18/2019 241 75.3 12/9/2019 84 92
6/19/2019 82.3 89.7 12/16/2019 81 91
6/24/2019 84 95.4 12/23/2019 51 62
6/25/2019 110 85.9 12/30/2019 76 86
6/26/2019 83.7 96.4 1/6/2020 80 87
7/1/2019 89.6 103 1/13/2020 69 70
7/2/2019 84.3 96.8 1/21/2020 93 92
7/3/2019 151 107 1/27/2020 91 97
7/8/2019 84.6 96.3 2/3/2020 84 88
7/9/2019 86 99.3 2/10/2020 129 90
7/10/2019 843 95.8 2/17/2020 84 93
7/15/2019 87.3 96 2/24/2020 81 87
7/16/2019 86.9 99.5 3/2/2020 105 86
7/17/2019 86.3 106 3/9/2020 106 88
7/22/2019 87.5 99 3/16/2020 82 88
7/23/2019 74 84.2 3/23/2020 79 86
7/24/2019 82.2 96.8 4/1/2020 81 86
7/29/2019 89.5 104 4/6/2020 84 91
7/30/2019 87.2 97.5 4/13/2020 154 51
7/31/2019 94 105 4/20/2020 74 69
8/5/2019 82.4 104 4/27/2020 83 86
8/6/2019 83.4 99.4 5/4/2020 96 86
8/7/2019 83.8 97.1 5/11/2020 97 98
8/12/2019 85.8 110 5/18/2020 95 97
8/13/2019 86.3 104 5/26/2020 105 83
8/14/2019 71.3 81.4 6/1/2020 77 84
8/19/2019 90.3 102 6/2/2020 80 86
8/20/2019 92 112 6/3/2020 80 86
8/21/2019 104 107 6/8/2020 87 91
8/26/2019 86.8 92.8 6/9/2020 89 92
8/27/2019 308 114 6/10/2020 90 104
8/28/2019 88.4 110 6/15/2020 79 89
9/3/2019 84.8 107 6/16/2020 92 85
9/4/2019 89.8 107 6/17/2020 89 89
9/5/2019 92 108 6/22/2020 102 92
9/9/2019 87.9 104 6/23/2020 81 99
9/10/2019 112 109 6/24/2020 84 91
9/11/2019 248 105 6/29/2020 103 102
9/16/2019 87.1 965 6/30/2020 114 95
9/17/2019 85.8 93.5 7/1/2020 90 88
9/18/2019 107 103 7/6/2020 84 97
7/7/2020 79 123 1/25/2021 81 92
7/8/2020 74 82 2/1/2021 79 86
7/13/2020 96 97 2/8/2021 93 94
7/14/2020 95 95 2/15/2021 77 79
7/15/2020 84 92 2/22/2021 107 90
7/20/2020 88 91 3/1/2021 90 91
7/21/2020 77 88 3/8/2021 81 89
7/22/2020 79 83 3/15/2021 80 90
7/27/2020 84 94 3/22/2021 87 79
7/28/2020 84 93 3/29/2021 87 91
7/29/2020 85 93 4/5/2021 76 85
8/3/2020 75 62 4/12/2021 80 88
8/4/2020 89 88 4/19/2021 79 84
8/5/2020 88 100 4/26/2021 94 83
8/10/2020 97 92 5/3/2021 97 88
8/11/2020 96 88 5/10/2021 80 86
8/12/2020 91 89 5/17/2021 82 88
8/17/2020 87 83 5/24/2021 81 91
8/18/2020 87 88 6/1/2021 86 92
8/19/2020 93 89 6/2/2021 81 90
8/24/2020 89 91 6/3/2021 81 92
8/25/2020 91 93 6/7/2021 95 93
8/26/2020 94 93 6/8/2021 99 88
8/31/2020 80 72 6/9/2021 102 91
9/1/2020 98 94 6/14/2021 81 97
9/2/2020 103 94 6/15/2021 90 91
9/8/2020 79 108 6/16/2021 84 90
9/9/2020 94 95 6/21/2021 94 94
9/10/2020 115 101 6/22/2021 107 95
9/14/2020 109 94 6/23/2021 105 95
9/15/2020 96 93 6/28/2021 100 100
9/16/2020 107 100 6/29/2021 105 101
9/21/2020 95 88 6/30/2021 98 99
9/22/2020 99 97 7/6/2021 87 103
9/23/2020 108 97 7/7/2021 105 104
9/28/2020 74 89 7/8/2021 99 99
9/29/2020 81 87 7/12/2021 146 97
9/30/2020 81 86 7/13/2021 98 88
10/5/2020 93 87 7/14/2021 109 98
10/12/2020 80 80 7/19/2021 80 90
10/19/2020 102 92 7/20/2021 96 95
10/26/2020 98 110 7/21/2021 96 54
11/2/2020 88 90 7/26/2021 100 94
11/9/2020 105 92 7/27/2021 110 90
11/16/2020 88 85 7/28/2021 106 88
11/23/2020 92 98 8/2/2021 98 99
12/2/2020 88 50 8/3/2021 61 54
12/7/2020 81 91 8/4/2021 100 94
12/14/2020 195 50 8/9/2021 111 95
12/21/2020 91 85 8/10/2021 83 98
12/28/2020 88 84 8/11/2021 95 94
1/4/2021 84 81 8/16/2021 81 100
1/11/2021 78 86 8/17/2021 50 56
1/19/2021 78 85 8/18/2021 70 78
8/23/2021 105 97 1/3/2022 89 43
8/24/2021 101 97 1/10/2022 96 87
8/25/2021 98 94 1/18/2022 324 298
8/30/2021 102 130 1/24/2022 108 102
8/31/2021 86 107 1/31/2022 106 101
9/1/2021 112 80 2/7/2022 96 94
9/7/2021 100 105 2/14/2022 150 116
9/8/2021 173 107 2/21/2022 100 106
9/9/2021 111 184 2/28/2022 104 95
9/13/2021 203 108 3/7/2022 87 99
9/14/2021 108 103 3/14/2022 102 100
9/15/2021 205 106 3/21/2022 89 95
9/20/2021 211 100 3/28/2022 93 97
9/21/2021 89 91 4/4/2022 84 101
9/22/2021 92 88 4/11/2022 89 96
9/27/2021 114 100 4/18/2022 43 45
9/28/2021 246 104 4/25/2022 95 95
9/29/2021 276 113 5/2/2022 92 104
10/4/2021 111 99 5/9/2022 98 106
10/11/2021 110 107 5/16/2022 103 105
10/18/2021 104 97 5/23/2022 94 102
10/25/2021 120 102 5/31/2022 118 102
11/1/2021 98 97 Average 100.2 99.3
11/8/2021 108 102 Max 862 965
11/15/2021 92 96 Min 43 43
11/22/2021 140 107
11/29/2021 114 97
12/6/2021 72 105
12/13/2021 96 103
12/20/2021 147 111
12/28/2021 106 99
Date Upstream Downstream Date Upstream Downstream
1/2/2018 7.7 8.4 8/8/2018 5.4 5.5
1/8/2018 12.5 11.9 8/13/2018 5.2 5.4
1/16/2018 11.9 10.7 8/14/2018 5.7 5.5
1/22/2018 7.7 9.6 8/15/2018 5.3 5.8
1/29/2018 11.3 11.3 8/20/2018 5.5 5.1
2/5/2018 10.1 10.3 8/21/2018 5.5 4.7
2/12/2018 7.4 7.7 8/22/2018 5.1 4.9
2/19/2018 7.7 8.1 8/27/2018 5.6 5.7
2/26/2018 7.1 7.2 8/28/2018 5.7 5.5
3/5/2018 10.6 10 8/29/2018 5.4 5.4
3/12/2018 10.4 9.5 9/4/2018 5.5 5.4
3/19/2018 7.8 8.1 9/5/2018 5.7 5.2
3/26/2018 8.8 9 9/6/2018 4.6 4.7
4/2/2018 7.4 7.7 9/10/2018 4.9 5.3
4/9/2018 6.9 5.5 9/11/2018 6.4 6
4/16/2018 5.4 5.6 9/12/2018 5.4 6.4
4/23/2018 6.6 6.3 9/18/2018 5.4 5.7
4/30/2018 8.4 9.4 9/19/2018 6.3 6.4
5/7/2018 7.2 7.9 9/20/2018 5.4 5.8
5/14/2018 6.4 5.9 9/24/2018 7 7.7
5/21/2018 6 5.4 9/25/2018 7.8 7.7
5/29/2018 5.8 5.4 9/26/2018 6.8 6.9
5/30/2018 4.4 4.2 10/1/2018 6.6 6.5
5/31/2018 6.1 6.2 10/8/2018 6.3 7.1
6/4/2018 6.7 6.3 10/15/2018 6.2 7.3
6/5/2018 7.4 6.7 10/22/2018 6.8 6.2
6/6/2018 7.3 7 10/29/2018 8 8.5
6/11/2018 5.7 5.9 11/5/2018 7.4 7.6
6/12/2018 6.1 5.9 11/12/2018 9.3 9
6/13/2018 6.6 6.3 11/19/2018 8.2 6.9
6/18/2018 5.5 5.7 11/26/2018 7.8 7.4
6/19/2018 5.8 5.5 12/3/2018 8.6 8.1
6/20/2018 4.7 4.9 12/11/2018 10.5 9.8
6/25/2018 6.1 5.5 12/17/2018 8.9 8.4
6/26/2018 5.5 6.2 12/26/2018 9.4 9.5
6/27/2018 6.2 5.4 12/31/2018 7.4 7.8
7/2/2018 5.4 5.9 1/7/2019 8.7 9
7/3/2018 5.3 6 1/14/2019 9.5 8.7
7/5/2018 4.9 6.5 1/22/2019 9.9 9.1
7/9/2018 6.8 6.9 1/28/2019 9.6 9.7
7/10/2018 6.3 6.5 2/4/2019 10.7 11.2
7/11/2018 5.3 6.1 2/11/2019 8 8
7/16/2018 5.6 5.3 2/18/2019 8.3 8.7
7/17/2018 5.1 5.4 2/25/2019 9.2 9.5
7/18/2018 5.1 5.2 3/4/2019 8.7 9.2
7/23/2018 6.4 6.1 3/11/2019 9.5 9.6
7/24/2018 6.3 6.5 3/18/2019 8.2 9.5
7/25/2018 5.8 5.9 3/25/2019 8.1 8.2
7/30/2018 5.6 5.4 4/1/2019 8.9 8.9
7/31/2018 5.7 5.5 4/8/2019 7.1 7
8/1/2018 5.1 5.5 4/15/2019 7.1 7.3
8/6/2018 5.2 5.2 4/22/2019 7.5 7.6
8/7/2018 5.1 5.3 4/29/2019 7.5 7.1
NC0025909 Instream Dissolved Oxygen Analysis [mg/L]
5/6/2019 7 6.7 9/30/2019 5.9 6.5
5/13/2019 6.3 6.4 10/7/2019 6.5 6.2
5/20/2019 5.9 6.2 10/14/2019 6.9 6.6
5/28/2019 6.3 6.4 10/21/2019 7.3 6.9
6/3/2019 6.9 6.9 10/28/2019 7.5 7.7
6/4/2019 6.5 6.7 11/5/2019 9 8.9
6/5/2019 6.1 6.4 11/11/2019 8.9 9.4
6/10/2019 6.5 6.7 11/18/2019 8.2 7.8
6/11/2019 6.3 6.7 11/25/2019 9.3 8.3
6/12/2019 7.1 7.2 12/2/2019 7.9 7.7
6/17/2019 6.1 6.4 12/9/2019 8.9 8.9
6/18/2019 5.5 6.6 12/16/2019 9 8
6/19/2019 6.4 6.5 12/23/2019 8.3 8.8
6/24/2019 7 6.3 12/30/2019 7.3 7.6
6/25/2019 6.3 6.5 1/6/2020 9.5 9.6
6/26/2019 6.8 6.9 1/13/2020 8.2 7.7
7/1/2019 6 6.1 1/21/2020 9.3 10.4
7/2/2019 5.9 6.3 1/27/2020 9.6 8.5
7/3/2019 6.5 5.9 2/3/2020 10.4 8.8
7/8/2019 6.1 5.6 2/10/2020 9.1 8.7
7/9/2019 5.4 5.6 2/17/2020 8.6 8.6
7/10/2019 6.4 5.8 2/24/2020 8.6 8.4
7/15/2019 5.6 5.9 3/2/2020 9.1 9.2
7/16/2019 5.6 5.8 3/9/2020 10.2 9.3
7/17/2019 5.7 5.1 3/16/2020 8.7 8.3
7/22/2019 5.4 6.6 3/23/2020 8.5 8.7
7/23/2019 5.6 6 4/1/2020 8.8 8.2
7/24/2019 7.2 7.6 4/6/2020 7.6 7.5
7/29/2019 6.5 6.3 4/13/2020 6.4 7.5
7/30/2019 5.9 6.2 4/20/2020 8 7.6
7/31/2019 5.9 6 4/27/2020 8.5 8.6
8/5/2019 6.2 6.6 5/4/2020 7.6 7.6
8/6/2019 6.8 6.7 5/11/2020 8.4 8.1
8/7/2019 6.1 6.9 5/18/2020 7 6.7
8/12/2019 6.2 5.6 5/26/2020 7 6.7
8/13/2019 5.7 6.1 6/1/2020 7.3 7.2
8/14/2019 5.1 5.2 6/2/2020 7.1 7
8/19/2019 6 6.3 6/3/2020 6.9 7.2
8/20/2019 5.8 5.8 6/8/2020 6.4 6
8/21/2019 6 5.9 6/9/2020 6.7 6.3
8/26/2019 6.6 7 6/10/2020 6 6.1
8/27/2019 6.3 6.3 6/15/2020 7.5 6.3
8/28/2019 6.2 6.3 6/16/2020 7.2 7.4
9/3/2019 5.8 6 6/17/2020 7.2 6.8
9/4/2019 5.9 6.2 6/22/2020 6.5 6.1
9/5/2019 5.2 6 6/23/2020 6.5 6.3
9/9/2019 5.7 6.1 6/24/2020 6.9 6.1
9/10/2019 5.8 5.9 6/29/2020 6.2 5.7
9/11/2019 5.3 6.1 6/30/2020 6.8 6.2
9/16/2019 5.9 5.9 7/1/2020 5.4 5.6
9/17/2019 5.9 6.2 7/6/2020 6.1 6.4
9/18/2019 4.6 5.7 7/7/2020 6.2 5.9
9/23/2019 4.8 5.8 7/8/2020 6 6.7
9/24/2019 6.4 6.7 7/13/2020 6.7 5.3
9/25/2019 5.6 6.2 7/14/2020 6.6 6.3
7/15/2020 5.9 5.6 3/1/2021 7.7 7.7
7/20/2020 5.6 5.8 3/8/2021 9.1 9.2
7/21/2020 5.8 5.6 3/15/2021 7.8 7.9
7/22/2020 5.6 6.4 3/22/2021 8.2 8.2
7/27/2020 5.6 5.4 3/29/2021 8.8 7.8
7/28/2020 5.8 5.5 4/5/2021 8.5 8.2
7/29/2020 5.5 6 4/12/2021 7.9 8.2
8/3/2020 6.3 6 4/19/2021 7.9 7.3
8/4/2020 6.2 6.2 4/26/2021 7.9 8
8/5/2020 5.4 6 5/3/2021 7.2 6.9
8/10/2020 6.4 6.1 5/10/2021 7 7
8/11/2020 6.2 5.8 5/17/2021 7.2 7.6
8/12/2020 5.6 5.6 5/24/2021 7.1 6.9
8/17/2020 5.9 6.2 6/1/2021 7.1 7
8/18/2020 7.1 6.4 6/2/2021 6.5 6.7
8/19/2020 5.9 6.2 6/3/2021 7.2 7
8/24/2020 6.1 5.9 6/7/2021 6.6 6
8/25/2020 6.1 5.9 6/8/2021 6.2 6.3
8/26/2020 5.7 6 6/9/2021 5.7 6
8/31/2020 5.8 5.8 6/14/2021 5.7 5.6
9/1/2020 5.7 5.7 6/15/2021 6.6 6.6
9/2/2020 5.8 5.7 6/16/2021 6.5 6.2
9/8/2020 6.8 6.8 6/21/2021 6.5 6.3
9/9/2020 6 5.6 6/22/2021 5.9 5.5
9/10/2020 5.9 5.9 6/23/2021 6.4 6.6
9/14/2020 6.3 6.4 6/28/2021 6.1 6.2
9/15/2020 6.2 6.3 6/29/2021 6.1 5.5
9/16/2020 6.8 6.5 6/30/2021 5.7 6.3
9/21/2020 7.9 7.5 7/6/2021 5.8 5.7
9/22/2020 7.9 7.8 7/7/2021 6.6 6
9/23/2020 7.5 7.4 7/8/2021 6.2 5.3
9/28/2020 6.7 6.5 7/12/2021 6.2 6.2
9/29/2020 6.5 6.3 7/13/2021 6.3 6.2
9/30/2020 7.3 7.5 7/14/2021 6.1 7.2
10/5/2020 7.9 7.4 7/19/2021 5.2 5
10/12/2020 6.8 6.7 7/20/2021 5.6 5.9
10/19/2020 8.2 7.6 7/21/2021 6.8 6
10/26/2020 7 6.6 7/26/2021 5.6 5.6
11/2/2020 9.1 8.3 7/27/2021 6.5 5.9
11/9/2020 7.8 7.4 7/28/2021 5.9 5.7
11/16/2020 8.7 8.7 8/2/2021 6.2 5.4
11/23/2020 7.9 7.9 8/3/2021 6.1 6.4
12/2/2020 9.3 9.3 8/4/2021 6 6
12/7/2020 9.2 9.3 8/9/2021 6.1 5.7
12/14/2020 7.4 8.4 8/10/2021 5.7 5.4
12/21/2020 9 9.3 8/11/2021 5.8 5.9
12/28/2020 9.7 8.9 8/16/2021 5.4 5.7
1/4/2021 9.6 9 8/17/2021 5.8 5.9
1/11/2021 10 9.3 8/18/2021 6 6
1/19/2021 10.4 10.3 8/23/2021 5.3 5
1/25/2021 8.8 8.5 8/24/2021 5.86 5.47
2/1/2021 9.3 9.4 8/25/2021 5.3 5.1
2/8/2021 9.2 8.9 8/30/2021 5.7 5.7
2/15/2021 9.1 9 8/31/2021 5.4 5.5
2/22/2021 9.1 9.2 9/1/2021 3.4 3.8
9/7/2021 6.1 5.36
9/8/2021 5.77 5.43
9/9/2021 5.33 5.4
9/13/2021 4.98 5.21
9/14/2021 6.3 6.4
9/15/2021 5.6 6.36
9/20/2021 6.3 6.1
9/21/2021 6.1 6.3
9/22/2021 5.57 4.6
9/27/2021 7.2 8.1
9/28/2021 7.2 7.4
9/29/2021 6.8 7.1
10/4/2021 6.4 5.9
10/11/2021 6.3 6.6
10/18/2021 8.1 8.2
10/25/2021 6.4 6.3
11/1/2021 6.3 6.6
11/8/2021 7.6 7.3
11/15/2021 9.5 9.9
11/22/2021 7.8 7.8
11/29/2021 9.3 9.6
12/6/2021 8.9 9
12/13/2021 9.7 10.3
12/20/2021 9.4 9.8
12/28/2021 10 10.3
1/3/2022 9.1 8.7
1/10/2022 10.3 10.5
1/18/2022 13.8 14.2
1/24/2022 12.8 12.3
1/31/2022 12.9 12.5
2/7/2022 12 12.6
2/14/2022 12 11.7
2/21/2022 9.8 10.5
2/28/2022 10.5 10.7
3/7/2022 8.4 8.3
3/14/2022 11.2 11
3/21/2022 10.2 10.5
3/28/2022 10.9 10.6
4/4/2022 10.1 10.4
4/11/2022 8.6 9.4
4/18/2022 8.8 9.1
4/25/2022 8 8
5/2/2022 8.2 8.4
5/9/2022 8.6 8.7
5/16/2022 7.9 8
5/23/2022 7.3 6.9
5/31/2022 7.1 7.2
Average 7.1 7.1
Max 13.8 14.2
Min 3.4 3.8
Date Upstream Downstream Date Upstream Downstream
1/2/2018 2 2 8/7/2018 21 22
1/8/2018 5 3 8/8/2018 21 21
1/16/2018 4 3 8/13/2018 20 21
1/22/2018 7 7 8/14/2018 20 21
1/29/2018 11 11 8/15/2018 20 20
2/5/2018 7 7 8/20/2018 21 22
2/12/2018 13 14 8/21/2018 21 22
2/19/2018 12 12 8/22/2018 20 21
2/26/2018 15 14 8/27/2018 20 20
3/5/2018 8 8 8/28/2018 20 21
3/12/2018 9 9 8/29/2018 20 21
3/19/2018 13 13 9/4/2018 22 21
3/26/2018 9 9 9/5/2018 21 22
4/2/2018 13 13 9/6/2018 21 22
4/9/2018 11 11 9/10/2018 21 22
4/16/2018 12 12 9/11/2018 21 22
4/23/2018 14 14 9/12/2018 21 22
4/30/2018 11 10 9/18/2018 21 22
5/7/2018 15 15 9/19/2018 19 20
5/14/2018 18 18 9/20/2018 20 21
5/21/2018 19 18 9/24/2018 20 21
5/29/2018 20 20 9/25/2018 20 20
5/30/2018 20 20 9/26/2018 19 20
5/31/2018 19 19 10/1/2018 20 20
6/4/2018 19 19 10/8/2018 20 20
6/5/2018 18 17 10/15/2018 17 17
6/6/2018 18 17 10/22/2018 10 11
6/11/2018 20 20 10/29/2018 13 13
6/12/2018 20 19 11/5/2018 15 14
6/13/2018 20 19 11/12/2018 10 10
6/18/2018 21 21 11/19/2018 10 10
6/19/2018 21 21 11/26/2018 12 12
6/20/2018 21 21 12/3/2018 10 11
6/25/2018 21 21 12/11/2018 6 7
6/26/2018 21 21 12/17/2018 9 9
6/27/2018 20 20 12/26/2018 6 6
7/2/2018 21 22 12/31/2018 12 12
7/3/2018 21 22 1/7/2019 10 10
7/5/2018 21 22 1/14/2019 9 9
7/9/2018 18 19 1/22/2019 5 5
7/10/2018 19 20 1/28/2019 7 7
7/11/2018 20 21 2/4/2019 8 8
7/16/2018 21 22 2/11/2019 9 9
7/17/2018 21 22 2/18/2019 10 10
7/18/2018 21 22 2/25/2019 9 10
7/23/2018 19 20 3/4/2019 10 11
7/24/2018 20 21 3/11/2019 12 12
7/25/2018 20 21 3/18/2019 8 8
7/30/2018 21 22 3/25/2019 11 11
7/31/2018 21 22 4/1/2019 9 8
8/1/2018 20 21 4/8/2019 15 15
8/6/2018 21 22 4/15/2019 13 14
4/22/2019 11 11 9/23/2019 18 17
NC0025909 Instream Temperature Analysis [degC]
4/29/2019 15 15 9/24/2019 18 19
5/6/2019 16 16 9/25/2019 18 18
5/13/2019 17 18 9/30/2019 20 20
5/20/2019 18 19 10/7/2019 18 18
5/28/2019 18 19 10/14/2019 16 17
6/3/2019 18 18 10/21/2019 16 15
6/4/2019 17 17 10/28/2019 14 14
6/5/2019 18 19 11/5/2019 9 10
6/10/2019 19 20 11/11/2019 9 9
6/11/2019 18 19 11/18/2019 11 11
6/12/2019 17 17 11/25/2019 8 8
6/17/2019 19 20 12/2/2019 10 11
6/18/2019 20 20 12/9/2019 10 10
6/19/2019 19 20 12/16/2019 11 12
6/24/2019 20 20 12/23/2019 11 11
6/25/2019 20 20 12/30/2019 15 15
6/26/2019 19 19 1/6/2020 7 7
7/1/2019 21 21 1/13/2020 13 13
7/2/2019 20 20 1/21/2020 6 5
7/3/2019 20 21 1/27/2020 8 8
7/8/2019 21 21 2/3/2020 8 8
7/9/2019 21 22 2/10/2020 8 8
7/10/2019 21 22 2/17/2020 8 8
7/15/2019 20 21 2/24/2020 11 10
7/16/2019 21 21 3/2/2020 9 9
7/17/2019 20 21 3/9/2020 7 8
7/22/2019 21 22 3/16/2020 12 12
7/23/2019 21 22 3/23/2020 13 13
7/24/2019 20 19 4/1/2020 11 11
7/29/2019 19 20 4/6/2020 13 13
7/30/2019 20 20 4/13/2020 16 16
7/31/2019 20 20 4/20/2020 14 14
8/5/2019 20 20 4/27/2020 12 12
8/6/2019 19 20 5/4/2020 17 17
8/7/2019 20 20 5/11/2020 12 12
8/12/2019 21 21 5/18/2020 17 17
8/13/2019 21 21 5/26/2020 18 18
8/14/2019 21 22 6/1/2020 16 16
8/19/2019 20 21 6/2/2020 16 17
8/20/2019 20 21 6/3/2020 18 18
8/21/2019 20 21 6/8/2020 19 20
8/26/2019 19 19 6/9/2020 19 20
8/27/2019 19 20 6/10/2020 20 21
8/28/2019 19 20 6/15/2020 17 17
9/3/2019 19 19 6/16/2020 16 17
9/4/2019 20 20 6/17/2020 16 17
9/5/2019 20 21 6/22/2020 19 17
9/9/2019 19 19 6/23/2020 19 19
9/10/2019 20 20 6/24/2020 19 19
9/11/2019 21 20 6/29/2020 22 21
9/16/2019 19 19 6/30/2020 21 21
9/17/2019 19 20 7/1/2020 20 20
9/18/2019 20 21 7/6/2020 21 21
7/7/2020 21 21 1/25/2021 9 9
7/8/2020 21 21 2/1/2021 8 8
7/13/2020 21 21 2/8/2021 6 6
7/14/2020 21 21 2/15/2021 9 9
7/15/2020 22 22 2/22/2021 9 8
7/20/2020 21 21 3/1/2021 14 14
7/21/2020 20 21 3/8/2021 7 6
7/22/2020 21 21 3/15/2021 13 13
7/27/2020 20 21 3/22/2021 11 10
7/28/2020 20 21 3/29/2021 10 10
7/29/2020 21 21 4/5/2021 11 11
8/3/2020 21 22 4/12/2021 12 12
8/4/2020 19 20 4/19/2021 13 12
8/5/2020 20 20 4/26/2021 12 12
8/10/2020 20 20 5/3/2021 17 17
8/11/2020 20 21 5/10/2021 16 17
8/12/2020 20 21 5/17/2021 15 15
8/17/2020 20 20 5/24/2021 17 18
8/18/2020 19 19 6/1/2021 15 16
8/19/2020 20 20 6/2/2021 17 17
8/24/2020 20 20 6/3/2021 17 18
8/25/2020 21 21 6/7/2021 20 20
8/26/2020 20 20 6/8/2021 20 20
8/31/2020 21 21 6/9/2021 20 20
9/1/2020 21 22 6/14/2021 20 20
9/2/2020 21 22 6/15/2021 20 20
9/8/2020 17 18 6/16/2021 19 19
9/9/2020 19 20 6/21/2021 20 20
9/10/2020 20 21 6/22/2021 21 21
9/14/2020 19 20 6/23/2021 19 19
9/15/2020 19 19 6/28/2021 21 21
9/16/2020 18 18 6/29/2021 21 21
9/21/2020 13 14 6/30/2021 21 21
9/22/2020 13 13 7/6/2021 20 20
9/23/2020 15 15 7/7/2021 20 20
9/28/2020 19 19 7/8/2021 21 21
9/29/2020 20 20 7/12/2021 22 22
9/30/2020 15 15 7/13/2021 21 21
10/5/2020 13 13 7/14/2021 21 21
10/12/2020 17 18 7/19/2021 21 21
10/19/2020 12 12 7/20/2021 21 21
10/26/2020 16 16 7/21/2021 20 20
11/2/2020 10 11 7/26/2021 22 22
11/9/2020 16 16 7/27/2021 22 22
11/16/2020 11 11 7/28/2021 22 21
11/23/2020 12 12 8/2/2021 20 20
12/2/2020 7 7 8/3/2021 21 21
12/7/2020 10 10 8/4/2021 20 20
12/14/2020 13 12 8/9/2021 20 20
12/21/2020 10 10 8/10/2021 21 21
12/28/2020 6 7 8/11/2021 21 21
1/4/2021 8 8 8/16/2021 22 22
1/11/2021 8 7 8/17/2021 22 22
1/19/2021 6 6 8/18/2021 22 22
8/23/2021 21 21 1/3/2022 12 11
8/24/2021 21 21 1/10/2022 8 8
8/25/2021 21 21 1/18/2022 3 3
8/30/2021 21 21 1/24/2022 5 5
8/31/2021 21 21 1/31/2022 5 5
9/1/2021 22 22 2/7/2022 8 7
9/7/2021 19 19 2/14/2022 6 6
9/8/2021 21 21 2/21/2022 6 5
9/9/2021 21 21 2/28/2022 8 8
9/13/2021 20 20 3/7/2022 15 15
9/14/2021 19 19 3/14/2022 11 7
9/15/2021 21 21 3/21/2022 9 9
9/20/2021 20 20 3/28/2022 8 8
9/21/2021 20 20 4/4/2022 10 10
9/22/2021 20 20 4/11/2022 10 10
9/27/2021 15 15 4/18/2022 14 13
9/28/2021 15 15 4/25/2022 15 15
9/29/2021 16 16 5/2/2022 17 17
10/4/2021 19 19 5/9/2022 14 14
10/11/2021 18 18 5/16/2022 18 19
10/18/2021 12 11 5/23/2022 20 20
10/25/2021 15 15 5/31/2022 19 19
11/1/2021 12 12 Average 16.2 16.4
11/8/2021 9 9 Max 22 22
11/15/2021 9 8 Min 2 2
11/22/2021 12 12
11/29/2021 8 8
12/6/2021 12 12
12/13/2021 7 7
12/20/2021 8 7
12/28/2021 11 11
Reduction in Frequency Evalaution
Facility:
Permit No.
Review period (use 
3 yrs)Note: Evaluation conducted using limitations assigned to the 3.0 MGD flow tier. 
Criteria have been met at both flow tiers.
Approval Criteria:Y/N?
Y
Y
N
Data Review Units
Weekly 
average 
limit
Monthly 
average 
limit
50% 
MA
3‐yr mean 
(geo mean 
for FC)
< 50%?200% 
MA
# daily 
samples 
>200%
<15?200% 
WA
# daily 
samples 
>200%
< 20?
# of non‐
monthly 
limit 
violations
> 2?# civil penalty 
asessment > 1?
Reduce 
Frequency? 
(Yes/No)
BOD mg/L 45 30 15 1.6888641 Y 60 0 Y 0 N 0 N Y
TSS mg/L 45 30 15 0.8561118 Y 60 0 Y 0 N 0 N Y
Ammonia (summer) mg/L 3 1 0.5 0.1649455 Y 2 2 Y 0 N 0 N Y
Ammonia (winter) mg/L 6 2 1 0.2868627 Y 4 1 Y 0 N 0 N Y
Fecal Coliform #/100 400 200 100 3.4932421 Y 800 7 Y 0 N 0 N Y
1. Not currently under SOS
2. Not on EPA Quarterly noncompliance 
report
3. Facility or employees convicted of CWA 
violations
Rutherfordton WWTP
NC0025909
6/2019 ‐ 6/2022
date Parameter Param Class Sample UoM Value Modifier Cell Type Location Subbasin
2/1/2021 01077 - Silver, Total (as Ag)Metal Grab ug/l 0.25 LESSTHAN DLYVALUE Downstream 03-08-02
2/1/2021 01077 - Silver, Total (as Ag)Metal Composite ug/l 0.3 DLYVALUE Effluent 03-08-02
2/1/2021 01077 - Silver, Total (as Ag)Metal Composite ug/l 0.48 DLYVALUE Influent 03-08-02
2/1/2021 01077 - Silver, Total (as Ag)Metal Grab ug/l 0.28 DLYVALUE Upstream 03-08-02
Rutherfordton WWTP Total Silver 2/1/2021 Summary
NH3/TRC WLA Calculations
Facility: Rutherfordton WWTP
PermitNo. NC0025909
Prepared By: Nick Coco
Enter Design Flow (MGD):1
Enter s7Q10 (cfs):1.86
Enter w7Q10 (cfs):2.88
Total Residual Chlorine (TRC)Ammonia (Summer)
Daily Maximum Limit (ug/l)Monthly Average Limit (mg NH3-N/l)
s7Q10 (CFS)1.86 s7Q10 (CFS)1.86
DESIGN FLOW (MGD)1 DESIGN FLOW (MGD)1
DESIGN FLOW (CFS)1.55 DESIGN FLOW (CFS)1.55
STREAM STD (UG/L)17.0 STREAM STD (MG/L)1.0
Upstream Bkgd (ug/l)0 Upstream Bkgd (mg/l)0.22
IWC (%)45.45 IWC (%)45.45
Allowable Conc. (ug/l)37 Allowable Conc. (mg/l)1.9
Capped at 28 ug/L.Consistent with current limit. Maintain limit.
Maintain limit.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/l)
Fecal Coliform w7Q10 (CFS)2.88
Monthly Average Limit:200/100ml DESIGN FLOW (MGD)1
(If DF >331; Monitor)DESIGN FLOW (CFS)1.55
(If DF<331; Limit)STREAM STD (MG/L)1.8
Dilution Factor (DF)2.20 Upstream Bkgd (mg/l)0.22
IWC (%)34.99
Allowable Conc. (mg/l)4.7
Consistent with current limit. Maintain limit.
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non-Muni)

NH3/TRC WLA Calculations
Facility: Rutherfordton WWTP
PermitNo. NC0025909
Prepared By: Nick Coco
Enter Design Flow (MGD):3
Enter s7Q10 (cfs):1.86
Enter w7Q10 (cfs):2.88
Total Residual Chlorine (TRC)Ammonia (Summer)
Daily Maximum Limit (ug/l)Monthly Average Limit (mg NH3-N/l)
s7Q10 (CFS)1.86 s7Q10 (CFS)1.86
DESIGN FLOW (MGD)3 DESIGN FLOW (MGD)3
DESIGN FLOW (CFS)4.65 DESIGN FLOW (CFS)4.65
STREAM STD (UG/L)17.0 STREAM STD (MG/L)1.0
Upstream Bkgd (ug/l)0 Upstream Bkgd (mg/l)0.22
IWC (%)71.43 IWC (%)71.43
Allowable Conc. (ug/l)24 Allowable Conc. (mg/l)1.3
Consistent with current limit.Consistent with current limit. Maintain limit.
Maintain limit.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/l)
Fecal Coliform w7Q10 (CFS)2.88
Monthly Average Limit:200/100ml DESIGN FLOW (MGD)3
(If DF >331; Monitor)DESIGN FLOW (CFS)4.65
(If DF<331; Limit)STREAM STD (MG/L)1.8
Dilution Factor (DF)1.40 Upstream Bkgd (mg/l)0.22
IWC (%)61.75
Allowable Conc. (mg/l)2.8
Consistent with current limit. Maintain limit.
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non-Muni)

NC0025909 Rutherfordton WWTP 8/2/2022
Month RR (%)Month RR (%)Month RR (%)Month RR (%)
January-18 97.88 July-20 98.97 January-18 97.18 July-20 98.32
February-18 95.76 August-20 98.81 February-18 92.51 August-20 97.24
March-18 97.75 September-20 98.87 March-18 93.32 September-20 98.50
April-18 95.36 October-20 98.96 April-18 95.65 October-20 98.10
May-18 96.90 November-20 99.10 May-18 97.25 November-20 98.98
June-18 96.27 December-20 98.17 June-18 96.40 December-20 98.20
July-18 97.93 January-21 97.30 July-18 97.55 January-21 96.63
August-18 97.14 February-21 97.67 August-18 97.77 February-21 93.74
September-18 98.54 March-21 98.04 September-18 97.88 March-21 98.37
October-18 97.60 April-21 98.86 October-18 97.31 April-21 98.60
November-18 97.56 May-21 98.71 November-18 96.77 May-21 97.78
December-18 96.56 June-21 99.18 December-18 96.38 June-21 98.17
January-19 97.00 July-21 99.21 January-19 96.12 July-21 97.97
February-19 97.19 August-21 98.72 February-19 96.60 August-21 97.75
March-19 98.91 September-21 98.57 March-19 98.02 September-21 97.14
April-19 98.95 October-21 98.86 April-19 97.67 October-21 98.41
May-19 98.95 November-21 98.92 May-19 98.43 November-21 97.45
June-19 98.65 December-21 98.59 June-19 98.29 December-21 97.98
July-19 99.28 January-22 97.83 July-19 98.04 January-22 96.01
August-19 99.23 February-22 98.79 August-19 98.63 February-22 97.27
September-19 99.20 March-22 98.74 September-19 98.52 March-22 96.78
October-19 99.26 April-22 98.55 October-19 98.48 April-22 97.23
November-19 99.08 May-22 98.80 November-19 98.19 May-22 98.47
December-19 98.36 June-22 December-19 97.26 June-22
January-20 98.63 July-22 January-20 96.97 July-22
February-20 98.14 August-22 February-20 95.45 August-22
March-20 97.71 September-22 March-20 95.40 September-22
April-20 97.46 October-22 April-20 96.66 October-22
May-20 98.35 November-22 May-20 97.64 November-22
June-20 98.99 December-22 June-20 97.96 December-22
Overall BOD removal rate 98.24 Overall TSSD removal rate 97.27
BOD monthly removal rate TSS monthly removal rate
7/22/22 WQS = 12 ng/L V:2013-6
Facility Name
/Permit No. :
Total Mercury 1631E PQL = 0.5 ng/L 7Q10s = 1.860 cfs WQBEL = 26.40 ng/L
Date Modifier Data Entry Value Permitted Flow = 1.000 47 ng/L
1/22/18 2.4 2.4
5/23/18 <1 0.5 1.5 ng/L - Annual Average for 2018
7/10/19 <1 0.5 0.5 ng/L - Annual Average for 2019
1/6/20 1.4 1.4
2/11/20 4 4
3/17/20 7.6 7.6
4/7/20 1.1 1.1
5/5/20 1 1
6/2/20 <1 0.5 2.6 ng/L - Annual Average for 2020
Rutherfordton WWTP/NC0025909 No Limit Required
MERCURY WQBEL/TBEL EVALUATION
No MMP Required
Rutherfordton WWTP/NC0025909
Mercury Data Statistics (Method 1631E)
2018 2019 2020
# of Samples 2 1 6
Annual Average, ng/L 1.5 0.5 2.6
Maximum Value, ng/L 2.40 0.50 7.60
TBEL, ng/L
WQBEL, ng/L 26.4
47
7/22/22 WQS = 12 ng/L V:2013-6
Facility Name
/Permit No. :
Total Mercury 1631E PQL = 0.5 ng/L 7Q10s = 1.860 cfs WQBEL = 16.80 ng/L
Date Modifier Data Entry Value Permitted Flow = 3.000 47 ng/L
1/22/18 2.4 2.4
5/23/18 <1 0.5 1.5 ng/L - Annual Average for 2018
7/10/19 <1 0.5 0.5 ng/L - Annual Average for 2019
1/6/20 1.4 1.4
2/11/20 4 4
3/17/20 7.6 7.6
4/7/20 1.1 1.1
5/5/20 1 1
6/2/20 <1 0.5 2.6 ng/L - Annual Average for 2020
Rutherfordton WWTP/NC0025909 No Limit Required
MERCURY WQBEL/TBEL EVALUATION
MMP Required
Rutherfordton WWTP/NC0025909
Mercury Data Statistics (Method 1631E)
2018 2019 2020
# of Samples 2 1 6
Annual Average, ng/L 1.5 0.5 2.6
Maximum Value, ng/L 2.40 0.50 7.60
TBEL, ng/L
WQBEL, ng/L 16.8
47
EPA
United States Environmental Protection Agency
Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 N 52 NC0025909 21/11/24 C S31112171819 20
21 66
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
N67707172 73 74 75 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Rutherfordton WWTP
NC Hwy 221
Rutherfordton NC 28139
Entry Time/Date Permit Effective Date
Exit Time/Date Permit Expiration Date
10:00AM 21/11/24 16/07/01
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Phillip E Reynolds/ORC/828-287-2141/
Other Facility Data
12:00PM 21/11/24 20/07/31
Name, Address of Responsible Official/Title/Phone and Fax Number
Doug Barrick,129 N Main St Rutherfordton NC 28139/Town Manager/828-287-3520/Contacted
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement Operations & Maintenance Records/Reports
Self-Monitoring Program Sludge Handling Disposal Facility Site Review Compliance Schedules
Pretreatment Effluent/Receiving Waters Laboratory Storm Water
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
Stephanie A Williams DWR/ARO WQ/828-296-4500/
Mikal Willmer DWR/Division of Water Quality/828-296-4686/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#1
NPDES yr/mo/day
21/11/24
Inspection Type
C3111218
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Mikal Willmer and Stephanie Williams, with the Asheville Regional Office, conducted a compliance
evaluation inspection of the Rutherfordton WWTP on November 24, 2021. This inspection was
conducted in conjunction with the facilities pretreatment Audit. Suez personnel were present and
assisted in the inspection.
Overall, the facility appeared to be maintained in compliance with the requirements of the permit.

Headworks: The current screw auger is only rated for 1.5 MGD. While average daily flows remain
under 1.5 MGD, the screen cannot handle wet weather flows. Currently there is no separate grit
removal system. Grit removal may reduce pass-through debris to the aeration basins. There is a
manual bar screen that is used when flows bypass the auger during rain events. The grating is
spaced too far apart and contributes to additional debris passing into the system. Debris from the
screw auger is removed from the headworks by Republic once a week. Rutherford plans to include a
new mechanical bar screen sized for the 3 MGD tier and grit removal during upgrades.
EQ Basin: Staff indicate there is adequate capacity in the EQ basin during heavy flow events.
Operators hope to install a permanent pump to aid in transfer of wastewater back into the system.
AB’s: The ORC attempts to keep the DO at approximately 3 mg/L. Rutherford is running staged
aeration to maintain pH’s within the system. The #2 liner has not been repaired but is slated for
repair in the upcoming fiscal year. Liner #1 will be replaced once #2 is operational.
Solids Handling: Budgeted to install new loading station and thickener to aid in solids management.
Approximately 56 loads were hauled during the most recent land application event. No new land has
been added to the facility RLAP Permit WQ0032855, which is currently in renewal.
Chlorine Contact Chamber: The second half of contact chamber has been rehabilitated.
Permit Renewal: The facility’s permit is currently in renewal. Permits that go to public notice after
April 6, 2016, will require site-specific effluent hardness data to implement the new dissolved metals
standard. The permittee can anticipate quarterly hardness sampling of the effluent and the facility's
upstream monitoring location.
NC0025909 17 (Cont.)
Page#2
Permit:NC0025909
Inspection Date:11/24/2021
Owner - Facility:
Inspection Type:
Rutherfordton WWTP
Compliance Evaluation
Compliance Schedules Yes No NA NE
Is there a compliance schedule for this facility?
Is the facility compliant with the permit and conditions for the review period?
No compliance schedules in 2016 permit.Comment:
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?
# Is the facility using a contract lab?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
Certificate of analysis displayed in office. pH and temperature are analyzed in-house.
All other parameters are analyzed by Environmental one.
Comment:
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH, DO, Sludge Judge, and other that are applicable?
MLSS is analyzed once a week by Environmental One. Sludge judge readings are
monitored in clarifiers.
Comment:
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Permit is renewal and under review.Comment:
Record Keeping Yes No NA NE
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)?
Page#3
Permit:NC0025909
Inspection Date:11/24/2021
Owner - Facility:
Inspection Type:
Rutherfordton WWTP
Compliance Evaluation
Record Keeping Yes No NA NE
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?
Comment:
Influent Sampling Yes No NA NE
# Is composite sampling flow proportional?
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0
degrees Celsius)?
Is sampling performed according to the permit?
Set to time composite. Thermometer is replaced annually, and sample volume is
checked monthly and set to 100 mL.
Comment:
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
Page#4
Permit:NC0025909
Inspection Date:11/24/2021
Owner - Facility:
Inspection Type:
Rutherfordton WWTP
Compliance Evaluation
Flow Measurement - Effluent Yes No NA NE
(If units are separated) Does the chart recorder match the flow meter?
Calibrated annually by Delta.Comment:
Bar Screens Yes No NA NE
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?
The auger is screening most debris and pass-through has not caused significant
issues to date; however, the spacing on the manual screen is oversized and the
mechanical screw auger is only rated for 1.5 MGD. No separate grit system
downstream of bar screens and auger.
Comment:
Grit Removal Yes No NA NE
Type of grit removal
a.Manual
b.Mechanical
Is the grit free of excessive organic matter?
Is the grit free of excessive odor?
# Is disposal of grit in compliance?
No separate grit removal. Facility currently utilizes a screw auger.Comment:
Standby Power Yes No NA NE
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?
Page#5
Permit:NC0025909
Inspection Date:11/24/2021
Owner - Facility:
Inspection Type:
Rutherfordton WWTP
Compliance Evaluation
Standby Power Yes No NA NE
Contract with Lutz Petroleum for fuel. Camp Electric and Nixon service the generator.
The generator exercises automatically every Monday and is tested under load once a
month.
Comment:
Equalization Basins Yes No NA NE
Is the basin aerated?
Is the basin free of bypass lines or structures to the natural environment?
Is the basin free of excessive grease?
Are all pumps present?
Are all pumps operable?
Are float controls operable?
Are audible and visual alarms operable?
# Is basin size/volume adequate?
EQ basin is used primarily during storm events. Currently a portable pump is used to
transfer diverted flow to the aeration basins.
Comment:
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system Surface
Is the basin free of dead spots?
Are surface aerators and mixers operational?
Are the diffusers operational?
Is the foam the proper color for the treatment process?
Does the foam cover less than 25% of the basin’s surface?
Is the DO level acceptable?
Is the DO level acceptable?(1.0 to 3.0 mg/l)
Only one of the two 1 MG basins are currently in use due to a tear in basin #2's liner.
Slated for repair this fiscal year. Facility receives dye from textile mill. ORC reported
he attempts to maintain an MLSS of 2900 to 3000 mg/L.
Comment:
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
Is the site free of weir blockage?
Page#6
Permit:NC0025909
Inspection Date:11/24/2021
Owner - Facility:
Inspection Type:
Rutherfordton WWTP
Compliance Evaluation
Secondary Clarifier Yes No NA NE
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately ¼ of the sidewall depth)
Only running one clarifier due to average daily flows. Facility staff monitor the sludge
blanket and attempt to keep a one-foot blanket in the clarifier.
Comment:
Pumps-RAS-WAS Yes No NA NE
Are pumps in place?
Are pumps operational?
Are there adequate spare parts and supplies on site?
Comment:
Aerobic Digester Yes No NA NE
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
# Is the odor acceptable?
# Is tankage available for properly waste sludge?
Facility plans to install a sludge thickener and new loading station. The Town has land
application events twice a year on their permitted fields under their Class B permit.
Comment:
Chemical Feed Yes No NA NE
Is containment adequate?
Is storage adequate?
Are backup pumps available?
Is the site free of excessive leaking?
Tubing is replaced as needed. Double-walled chemical storage tanks are utilized. Spill
control kit located in building with sodium hypochlorite and sodium bisulfite. Storm drain
mats are also available if needed; however, any spills would drain to the old sludge
loading station which drain back to the plant.
Comment:
Page#7
Permit:NC0025909
Inspection Date:11/24/2021
Owner - Facility:
Inspection Type:
Rutherfordton WWTP
Compliance Evaluation
Disinfection-Liquid Yes No NA NE
Is there adequate reserve supply of disinfectant?
(Sodium Hypochlorite) Is pump feed system operational?
Is bulk storage tank containment area adequate? (free of leaks/open drains)
Is the level of chlorine residual acceptable?
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de-chlorination?
Comment:
De-chlorination Yes No NA NE
Type of system ?Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
Is storage appropriate for cylinders?
# Is de-chlorination substance stored away from chlorine containers?
Are the tablets the proper size and type?
Chlorination and dechlor chemicals are stored in same room; however, they are in
double walled HDPE chemical bulk storage carboys.
Comment:
Are tablet de-chlorinators operational?
Number of tubes in use?
See above. Liquid chemicals used.Comment:
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
# 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)?
Flow paced composite sampler. Delta was scheduled to come out on November 30th to
calibrate all meters. Mag meters are utilized and calibrated onsite.
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
Page#8
Permit:NC0025909
Inspection Date:11/24/2021
Owner - Facility:
Inspection Type:
Rutherfordton WWTP
Compliance Evaluation
Effluent Pipe Yes No NA NE
If effluent (diffuser pipes are required) are they operating properly?
Comment:
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type,
and sampling location)?
Comment:
Page#9
Whole Effluent Toxicity Testing and Self Monitoring Summary 
Roxboro Steam Electric Power Plant NC0003425/006
24hr LC50 ac monit eFthd24AcBegin:8/1/2021 Freq:ANonComp:
County:Person Region:RRO Basin:ROA05
7Q10:Lake IWC:NA
SOC_JOC:
PF:NA
J FMA M J J A SOND
2018 ‐‐‐‐>100 ‐‐‐‐‐‐‐
2018 ‐‐Pass ‐‐Pass ‐‐Pass ‐‐Pass
2019 ‐‐Pass ‐‐Pass ‐‐Pass ‐‐Pass
2019 ‐‐>100 ‐‐‐‐‐‐‐‐‐
2020 ‐‐‐‐‐‐‐‐Pass ‐‐Pass
2020 ‐‐‐>100 ‐‐‐‐‐‐‐‐
2020 ‐‐Pass ‐‐Pass ‐‐Pass ‐‐Pass
2021 ‐‐‐‐‐H ‐‐‐‐‐‐
2021 ‐‐Pass ‐‐Pass ‐‐Pass ‐‐Pass
2021 ‐‐Pass ‐‐Pass ‐‐Pass ‐‐H
2022 ‐‐Pass ‐‐‐‐‐‐‐‐‐
2022 ‐‐Pass ‐‐‐‐‐‐‐‐‐
Roxboro WTP NC0003042/001
Chr Monit:  90%Ceri7dPF Begin:4/1/2018 Freq:Q
Jan Apr Jul Oct
NonComp:
County:Person Region:RRO Basin:ROA05
7Q10:IWC:
SOC_JOC:
PF:
J FMA M J J A SOND
2018 Pass ‐‐Pass ‐‐Pass ‐‐Pass ‐‐
2019 Pass ‐‐Pass ‐‐Pass ‐‐Pass ‐‐
2020 Pass ‐‐Pass ‐‐Pass ‐‐Pass ‐‐
2021 Fail ‐‐Pass ‐‐Fail ‐‐Pass ‐‐
2022 Pass ‐‐Pass ‐‐‐‐‐‐‐‐
Roxboro WWTP NC0021024/001
chr lim: 90%Ceri7dPF Begin:11/1/2018 Freq:Q
Mar Jun Sep Dec
NonComp:Single
County:Person Region:RRO Basin:ROA05
7Q10:0.0 IWC:100
SOC_JOC:
PF:5.0
J FMA M J J A SOND
2018 ‐‐Pass ‐‐Pass ‐‐Pass ‐‐Pass
2019 ‐‐Pass ‐‐Pass >100(P)‐‐Pass ‐‐Pass
2020 ‐‐Pass >100(P)‐‐Pass ‐‐Pass ‐‐Pass
2021 ‐‐Pass ‐‐Pass ‐‐Pass ‐‐Pass
2022 ‐‐Pass ‐‐‐‐‐‐‐‐‐
Rutherfordton WWTP NC0025909/001
chr lim: 1MGD @ 45Ceri7dPFBegin:7/1/2016 Freq:Q
Jan Apr Jul Oct
NonComp:Single
County:Rutherford Region:ARO Basin:BRD02
7Q10:1.7 IWC:71
SOC_JOC:
PF:3.0
J FMA M J J A SOND
2018 Pass ‐‐Pass ‐‐Pass ‐‐Pass ‐‐
2019 Pass ‐‐Pass ‐‐Pass ‐‐Pass ‐‐
2020 Pass ‐‐Pass ‐‐Pass ‐‐Pass ‐‐
2021 Pass ‐‐Pass >100 (P)>100 (P)>100 (P) Pass >100 (P)‐Pass ‐‐
2022 Pass ‐‐Pass ‐‐‐‐‐‐‐‐
Page 93 of 117Legend:  P= Fathead minnow (Pimphales promelas), H=No Flow (facility is active), s = Split test between Certified Labs
Environmental Testing Solutions, Inc.
June 24, 2021
Ms. Ann Baynor
Environment 1, Inc.
PO Box 7085
Greenville, NC 27835
ETS Project Number: 15990
Test Start Date: June 08, 2021
Facility Tested: Rutherfordton WWTP
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for samples received by Environmental Testing Solutions Inc.
Parameter
Code
Test Procedure, Method Number
Result (ChV)
THP6C
Fathead minnow, Pimephales promelas, Larval Survival and Growth Chronic
EPA-821-R-02-013, Method 1000.0
)100%
All toxicity testing results required as part of your permit must be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code
THP6C. Additionally, the DMR Reporting Form AT-5 must be signed and e-mailed or mailed to the
following address:
ATForms.ATB(c�ncdenr.gov
North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Please call if you have any questions concerning these results.
Sincerely,
ti
Jim Sumner
Laboratory Supervisor
North Carolina Certificate Numbers: Biological Analyses: 037, Drinking Water: 37786, Wastewater: 600
South Carolina Certificate Number: Clean Water Act: 99053-001

Environmental Testing Solutions, Inc.
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Effluent Toxicity Report Form - Chronic Fathead Minnow Multi -Concentration Test Date: June 24, 2021
Facility: Environment 1, Inc.
Rutherfordton WWTP
Laboratory Performing Test: Environmental Testing Solutions, Inc., Certificate # 037
Signature of Operator in Responsible Charge (ORC):
ORC Phone / E-mail:
Signature of Laboratory Supervisor:
e-Mail to: [e-mail]
NPDES #: NC 0025909 Pipe #: 001 County: Rutherford
Or Mail Original to: North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Start Date:
June 08, 2021
Control
Organisms
% Effluent
11.25%
% Effluent
22.5%
% Effluent
45%
% Effluent
72.5%
% Effluent
Water Quality Data
Control
pH (SU):
DO (mg/L):
Temp. (°C):
High Concentration
pH (SU):
DO (mg/L):
Temp. (°C):
100%
Comments
Project U: 15990
Sample 9: 210607.02, 210609.02, 210611.0:
Test Organisms: Pimephales pramelas
Replicate number
1 2 3
Supplier
4
In-house Culture
Begin hatch:
End hatch:
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.884 1
0.849
0.966
0.988
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.867
0.931
0.988
0.984
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.879
0.870
0.796
0.886
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.976
0.914
0.788
0.917
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.742 I
0.882
0.926
0.828
Surviving number of larvae
10
9
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.890
0.805
0.875
0.888
06-07-21 1500
06-08-21 0500
Survival (%)
Average wt (mg)
Average wt /
surviving (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
100.0
0.922
0.922
100.0
0.943
100.0
0.858
100.0
0.899
100.0
0.845
97.5
0.865
Day 0
Day 1
Day 2
Day 3
Day 4
Day 5
Day 6
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
8.17
8.00
8.08
8.00
8.14
7.70
8.17
7.94
8.12
7.98
8.21
8.01
8.23
7.98
7.7
7.6
7.8
7.6
7.7
6.7
7.6
7.5
7.9
7.8
7.8
7.4
7.9
7.3
24.8
24.5
24.7
24.6
24.8
24.7
24.7
24.3
24.7
24.4
24.6
24.8
24.8
24.2
7.94
7.81
7.94
7.70
7.99
7.50
7.90
7.66
7.95
7.76
8.00
7.74
7.94
7.70
7.7
7.4
7.9
7.3
8.0
6.5
8.1
7.6
8.0
7.7
8.1
7.3
8.2
7.4
25.0
24.8
24.9
24.7
25.0
24.5
24.9
24.5
25.0
24.3
24.9
24.6
25.0
24.3
Sample Information
Collection start date:
Grab:
Composite duration:
Alkalinity (rng/L CaCO3):
Hardness (mg/L CaCO3):
Conductivity (µmhos/cm):
Total residual chlorine (mg/L):
Sample Temp. at Receipt (°C):
Overall Analysis:
Sample 1
Sample 2
Sample 3
Control
06-06-21
06-08-21
06-10-21
24-h
24-h
24-h
45
47
46
59-62
36
34
36
84-86
279
261
263
305-323
< 0.10
< 0.10
< 0.10
0.9
1.6
3.1
Analyses
Normal:
Hom. Var.
NOEC:
LOEC:
ChV:
Method:
Survival
Growth
Yes
Yes
Yes
Yes
100%
100%
>100%
>100%
>100%
>100%
Visual Insp.
Dunnett's
Survival
Growth
% Effluent
Critical
Calculated
Critical
Calculated
11.25%
2.410
-0.469
22.5%
.
2.410
1.447
45%
2.410
0.520
72.5%
2.410
1.747
100%
2.410
1.295
Result: PASS LOEC: >100% NOEC: 100% ChV: >100%
DWR Report Form AT-5

Page 1 of 5
Environmental Testing Solutlons, Inc.
Chronic Whole Effluent Toxicity Test (EPA-821-R-02-013, Method 1000.0)
Species: Pimephales promelas
Client: Rutherfordton WWTP
NPDES #: NC 0025909
Project#: \5`lei o
Dilution preparation:
County: Rutherford
Outfall #: 001
Dilution prep (%)
11.25
22.5
45
72.5
100
Sample was not aerated or treated unless otherwise
Effluent volume (mL)
112.5
225
450
725
1000
noted on this form. Sample was warmed to 25.0 ± 1.0°C
Diluent volume (mL)
887.5
775
550
275
0
in a warm water bath and then diluted to the test
concentrations with moderately hard synthetic water
Total volume (mL)
1000
1000
1000
1000
1000
(MHSW).
Test organism information:
Test information:
Organism source:
In-house culture
Randomizing template:
Gaget3
Age:
< 24-hours old
Incubator number
and shelf location:
1 E
Spawn date:
t°4,,•O\-1L\
Artemia CHM number:
CHM1149
Hatch dates and times:
06. tr' • -u t. SCO —CO
Olt-Ut? U OS00
Drying information for weight determination:
Date / Time in oven:
ot,• 1S•-LI on S
*Initial oven temperature:
tot ' L
Transfer vessel information:
pH (5. U.) = g . Vs'
Temperature (°C) "1: -
Date / Time out of oven:
®b•tb •'1.\ O'1A0
*Final oven temperature:
Average transfer volume (mL):
< 0.25 mL
Total drying time:
"IA •taoodz S
*60°C Oven, Thermometer SN: 14-985B5
Daily feeding and renewal information:
Day
Date
Morning feeding
Afternoon feeding
Test initiation, renewal,
or termination
Sample
number
used
MHSW
batch used
Time
Analyst
Time
Analyst
Time
Analyst
0
06-08-21
U 5 OS
1110
1,(
ins- 0
yt
110bifl- crL
06• LI A
1
06-09-21
OSoO
'(/\
t11�
k
Ori I O
1
2
06-10-21
OS'tt
IN
\\30
.�
cn-ko
In
-LA 0bal. 01--ol,•(s./1
C
3
06-11-21
OS OO
1�
1\ l L
l�
0"l l l
\,(
A,,
4
06-12-21
o�oo
{
t oo
,
o Pio
6
V\
-t oLtt. rt
06•oi.ti A
5
06-13-21
()°O
It.
IIIAS
ro
`
1
6
06-14-21
OSoo
I(�
\1\S
1l
olio
d
.1
Ob-IO.21'
7
06-15-21
0
�`Al
Chemical analyses:
Parameter
Reporting Limit
Method number
Meter
Serial number
pH
0.15.U.
SM 4500-H+ B-2011
Accumet AR20
93312452
Dissolved Oxygen (D.0.)
1.0 mg/L
SM 4500-0 G-2011
YSI Model 52CE
18D104324
Conductivity
14.9 µmhos/cm
SM 2510 B-2011
Accumet AR20
93312452
Alkalinity
5.0 mg CaCO3/L
SM 2320 B-2011
Accumet AR20
93312452
Hardness
5.0 mg CaCO3/L
SM 2340 C-2011
Not applicable
Not applicable
Chlorine, Total Residual
0.1 mg/L
ORION 97-70-1977
Accumet AB250
92349123
Temperature
0.1°C
SM 2550E-2010
Digital Thermometer
13Ob6y6$ S
Control information:
Acceptance criteria
Summary of test endpoints:
Mortality:
0 %•
_< 20%
7-day LC50 (%)
7 1001.
Average weight per initial larvae:
U •602-
NOEL (%)
I OCA.
Average weight per surviving larvae:
0 •i°!•lL.-
>_ 0.25mg/larvae
LOEC (%)
"7 1007.
ChV (%)
1b07•
IC25 (%)
`% 1 o07_
SOP AT2O-Revision 6—Exhibit AT20.3

Page 2 of 5
Environmental Testing Solutions, Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Survival and Growth Data
Date: 06-08-21
Day
CONTROL
11.25%
22.5%
A
BCDE
F
G
H
I
J
K
L
0
10
10
10
10
10
10
10
10
10
10
10
10
1
I o
(0
ltj
10
LU
10
(D
/0
(0
10
10
/0
2
(0
10
10
I0
10
10
10
ID
IO
/0
io
10
3
(0
ID
10
to
10
10
10
10
1u
10
10
►D
4
/0
(0
10
(0
10
10
10
/0
10
ID
10
lb
5
'0
(0
10
10
10
(0
(O
(0
10
10
10
/O
6
IO
('0
tp
(p
Ip
tO
CO
10
Ip
ip
10
ID
7
10
10
10
10
10
/0
10
CO
/D
'0
r0
(D
*A = Pan weight (mg)
Tray color code: pCc? o e.
14.5G,
1,23
1y.(05
It1.1•-3/
15.68
13.91
14.05
14.1$
15.22
14.05
d'4,405
15•Zt-1
Analyst: cvtit-
Date: Oda - 2.La- 2,\
*B = Pan + Larvae weight (mg)
Analyst: J (
2.1.�d0
2%: t
7.a.%`,9
1..4.4 s
• 3. as
-`•s,•a.2
14.-1I
•64.tm1-
1°t. D I
2Z: \5
22. SI
lg. 4 0
Date: n< 7 3 t1
C = Larvae weight (mg) = B —A
Analyst:
il.gel
e.t-Vt
el).t.oU
et. is
g.b1
1.t)%
ti.%g
9,.8.4
b.`A
g.io
Lilo
l;•e.L1
Weight per initial number of larvae (mg)
= C / Initial number of larvae
Analyst:
�0,
0.
c).
D.
c•re
C7•
���
0
ma's
0
�,e
0'
0,C6
0•
ON
0•
%
Ca
p
0'
if
p•
qz'
Average weight per initial
number of larvae (mg)
Percent
reduction
from
control (%)
0 .e\- L-
0.`114,5
`2.-5 -40.g
Sg
6•9 7.
Weight measurements performed using Cahn 28 Automatic Electrobalance, SN 41520.
Comment codes: c = clear, d = dead, fg = fungus, k = killed, m = missing, sk = sick, sm = unusually small,
Ig = unusually large, d&r = decanted and returned, w = wounded.
Comments:
SOP AT2O-Revision 6-Exhibit AT20.3

Page 3 of 5
Environmental Testing Solutions, Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Survival and Growth Data
Date: 06-08-21
Day
45%
72.5%
100%
M
N
0
P
Q
R
S
T
U
V
W
X
0
10
10
10
10
10
10
10
10
10
10
10
10
1
(Z
10
ID
ID
Io
Ip
(0
IQ
(0
(0
10
/0
2
i0
10
10
10
10
10
10
(0
10
10
10
10
3
10
It,
10
10
10
/0
Ib
10
10
10
►0
10
4
16
iu
10
10
10
10
10
10
Ip
Ip
10
I�
5
I'D
ID
ID
ID
ID
10
10
IO
10
`0
10
I1
6
ID
ID
10
f0
10
10
I
lD
►0
10
(0
10
7
)0
ID
ID
10
ts,N9
I0
10
I0
10
/0
°I `�
10
Icy
*A = Pan weight (mg)
Tray color code: Orcu-N
iLl.81g
IN.1°I
13.(05
0- 24
► 5, 2,2.
13.50
16.0w
v3.-1
14•Bl
14%.00
114,5to
16.59
13.2.1
Analyst: MR,
Date: 06 - 2(n - 7_1
*B = Pan + Larvae weight (mg)
Analyst:
zi.61-
"2.3. 3
lt.S'
"1.4.A
2%.11.
2 a. Iv
1.2..e %
'1.3 .tr'�
3.'1..°ub
U.6l
Z.t.3`.i
22 in
Date: ®�' Isi • 3{
C = Larvae weight (mg) = B —A
Analyst:
c1.11.1
R.ILi
1, ge
41.11
1.4/
6•e'2,
9t.1;1
E•Ig
a.cio
1;.©s
.'Bs
g.gg
Weight per initial number of larvae (mg)
= C / Initial number of larvae
Analyst:
fi`
O.
(i'O
®'
i`•
0-
Q.
fi
cy
0•
0
0'
0
®
0.
%,--
0-
Average weight per initial
number of larvae (mg)
Percent
reduction
from control
(%)
®' 2
Z.� i.
td
®. 8 15
.� I .
®. 4I35
% • 7.,
*Weight measurements performed using Cahn 28 Automatic Electrobalance, SN 41520.
Comment codes: c = clear, d = dead, fg = fungus, k = killed, m = missing, sk = sick, sm = unusually small,
Ig = unusually large, d&r = decanted and returned, w = wounded.
Comments:
SOP AT20-Revision 6—Exhibit AT20.3

Rutherfordton WWTP
June 08, 2021
Project number: 15990
Sample numbers 210607.02, 210609.02, 210611.02
Weight / Initial number Mean survival Meanweight/Initial Coefficient of variation Percent reduction from
of larvae(rn) (%)number of larvae (%) control (%)
(mg)
a
=
o.
0
z
'�
a
ri
00
of
ry
�o
N
N
O
i0
enm
00
00
of
ai
N
00
N
C
00
m
0
m
m
tel
o
a,N
al
ea
ea
e
o
Ln
ea0m
o
0
0
2
0
0
o
0
0
2
0
0
0
0
o
n
m
0.884
0.849
0.966
0.988
N a,
w
0 0
0.988
0.984
0.879
0.870
0.796
0.886
LO CrN
m m
0 0
0.788
0.917
N
n m
0 0
t0 COm
m m
0 0
0.890
0.805
0.875
0.888
Coefficient of variation
Ime.o •.4111 per r.r.:.i.e number
el lervee)(%)
o
v?
m
00
m
m
o
Mean weight/
Surviving number of
larvae (mg)
N
Om
m
m
a
co
In
m
o
m
amo
0
m
0
Nm
m
0
m E
.2
31 -
3 E
0.884
0.849
10
m
0 0
N m
m m
0 0
CO Cr
m m
0 0
0.879
0.870
0.796
0.886
0.976
0.914
0.788
0.917
0.742
0.882
'fO m
m 00000
0 0
0.890
0.894
0.875
CO
m
0
E
f.. a
-
3 ,m,
z
z
8.84
8.49
tO m
In rn
m
8.67
9.31
9.88
9.84
m 0
N N^
o0 o
m
m
c
m-
ai
m N
m .+
n ai
7.42
8.82
9.26
8.28
O �n P.
m 0 m
00 m
m
m
9 E
°p
3
31
23.40
23.72
24.34
24.65
23.85
23.22
24.73
24.62
o P.
N N
N
m o
N P
N N
24.62
23.33
21.53
24.39
21.22
23.88
22.97
23.09
m 0 m
N
N N N
N
N
-
3
a
O01 N
00 00
b N
00 00
15.18
13.91
14.85
14.78
15.22
14.05
m N
c ui
LO m 0
v c
o N
m
000 O
ni vi
N ro
ni v
ID 0 LO IT
v v m
N
Final number of larvae
0 0
0 0
0T
OT
0T
0T
10
10
10
10
0 0
0 0
0 0
0 0
o m O
o
Initial number of
larvae
OT
0T
0 0
0 0
0 0
0 0
0 0
0T
0T
0T
0T
0 0
0 0
0 0 0
0
_
¢muo
vaLLtgx
--x�
2zoa
Ccoi-
=>
x
Concentration (%)
Control
m
N
Vy
N
N
00
N
N
ti
a whole effluent toxicity t
E
E E
E
E w o
i a a
Outfall 001:
0
0
00
0
0
0
O
• oc
V
0
s
o
E
n o
w
H
�
00 o
E
0
• v
a a
`o q
• 0
a a
.51
O �
m
o
E
Oo O
v o'
0
3
a
'o w
0
0
a 3
a �
3 0
E
00
v11-1
0
r
a
0
0
00
7

Statistical Analyses
Environmental Testing Solutions, Inc.
ivEntered by:
Kelley Kcon.n
Reviewed by:
lin,Semner
Start Date: 6/8/2021
End Date: 6/15/2021
Sample Date:
Comments:
Larval Fish Growth and Survival Test-7 Day Growth
Test ID: PpFRCR Sample ID: Rutherfordton
Lab ID: ETS-Envir. Testing Sol. Sample Type: DMR-Discharge Monitoring Report
Protocol: FWCHR-EPA-821-R-02-013 Test Species: PP-Pimephales promelas
Conc-%
1 2 3 4
D-Control 0.8840 0.8490 0.9660 0.9880
11.25 0.8670 0.9310 0.9880 0.9840
22.5 0.8790 0.8700 0.7960 0.8860
45 0.9760 0.9140 0,7880 0.9170
72.5 0.7420 0.8820 0.9260 0.8280
100 0.8900 0.8050 0.8750 0.8880
Transform: Untransformed 1-Tailed Isotonic
Conc-% Mean N-Mean Mean Min Max CV% N t-Stat Critical MSD Mean N-Mean
D-Control 0.9218 1.0000 0.9218 0.8490 0.9880 7.159 4 0.9321 1.0000
11.25 0.9425 1.0225 0.9425 0.8670 0.9880 6.010 4 -0,469 2.410 0.1066 0.9321 1.0000
22.5 0.8578 0.9306 0.8578 0.7960 0.8860 4.860 4 1.447 2.410 0.1066 0.8783 0.9422
45 0.8988 0.9750 0.8988 0.7880 0.9760 8.808 4 0.520 2.410 0.1066 0.8783 0.9422
72.5 0.8445 0.9162 0.8445 0.7420 0.9260 9.381 4 1.747 2.410 0.1066 0.8545 0.9167
100 0.8645 0.9379 0.8645 0.8050 0.8900 4.652 4 1.295 2.410 0.1066 0.8545 0.9167
Auxiliary Tests Statistic Critical Skew Kurt
Shapiro-Wilk's Test indicates normal distribution (p > 0.01) 0.92924 0.884 -0.584 -0.635
Bartlett's Test indicates equal variances (p = 0.82) 2.22799 15.0863
Hypothesis Test (1-tail, 0.05) NOEC LOEC ChV TU MSDu MSDp MSB MSE F-Prob df
Dunnett's Test 100 >100 1 0.10656 0.11561 0.00607 0.00391 0.2239 5, 18
Treatments vs D-Control
Linear Interpolation (200 Resamples)
Point % SD 95% CL(Exp) Skew
IC05 20.982
IC10 >100
IC15 >100
IC20 >100
IC25 >100
IC40 >100
IC50 >100
1.0
0.9
0.8
0.7
0.6
N
c 0.5
0.4
CC 0.3
0.2
0.1
0.0
0.1
.0
0
50 100 150
Dose
1.2
Dose -Response Plot
L 0.8 -
2
t7 0.6
0.4
0.2
u7
n
8
1-tail, 0.05 level
of significance

Page 4 of 5
Environmental Testing Solutions, Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Date: 06-08-21
Daily Chemistry:
Temperatures performed at the time of test initiation, renewal or termination by the analyst identified in the Daily Renewal Information table
located on Page 1. Alkalinity, hardness and chlorine (total residual) performed by the analyst identified on the bench sheet specific for each
analysis and transcribed to this bench sheet.
Analyst
Day
(Analyst identified for each day, performed pH, D.O. and conductivity measurements only.)
0
1
2
i
PT5'
IA -
Concentration
Parameter
CONTROL,
MHSW
pH (S.U.)
6,1'1-
ODD
0r4)8
8-Oa
p
C1•fzi
Dissolved oxygen (mg/L)
-7-7
lAo
/3,r
7, (0
4-1
(' 1
-f
Conductivity (µmhos/cm)
31n1
3Ia
3/9
Alkalinity (mgCaCO3/L)
toll
Hardness (mg CaCO3/L)
gtp
t r`,
gto
Temperature(°C)
IA • e
1._1-S
1-`1•-1
-1:4,_b
'\ k- k
-,A. 1
11.25%
pH(S.U.)
G poi
qq®1..;36
8-00
t4-r1
'4.`4-1
Dissolved oxygen (mg/L)
-1, (o
1..40
(0
S-0
Le-
Conductivity (µmhos/cm)
32,0
;2
�Z
Temperature (°C)
-1-1•G 1
1
—N.A.• rf
p
—VA. A
`IA- R.
1-�` !
-^►� `�
22.5%
pH (S.U.)
aa
U• 1
1.AS
+i4
-y
i-Q-4
6t%4a
/-6
7+t0•;r
(0.5
Dissolved oxygen (mg/L)
1
/1�
c
7'
6 d
Conductivity (µmhos/cm)
312
x
314
.zqy
Temperature (°C)
' LL
r;
-N.`� • d
Zy - EE
1_4 , 6
'1„`A ak
Zi, An
45%
pH(S.U.)
d•.p`-C
4.01-
0AT
g%
at0
4,.1/t
Dissolved oxygen (mg/L)
.R, <:„,
1. to
igi
--4-•4-
Q O
(o.
Conductivity(µmhos/cm)
jot(
s1•
ZB�
Temperature (°C)
1-'1.
i41 . .
..,-1p G
-L'•b
14_ZI-1
6
pH (S.U.)
6?.-00
r+R�
0,00
4. e'o
8'..ors
- /!•510
72s%
Dissolved oxygen (mg/L)
(q
f,
19
-I- S
YS O
(0.g
Conductivity (µmhos/cm)
2t38
A4k(
Z.73
Temperature(°C)
—.,1
-1L1..5
-LA
'���
-LA-C
pH (S.U.)
-t
7. 9L(
I`�.1/4/0,
�P.edI
'i iN
1 1-0
lei9
�i:ec�
Dissolved oxygen (mg/L)
-/.-7
1,t,4
-7T�`'7j
4, 3
S_ 41
(9eS-
Conductivity (µmhos/cm)
PI
lea
74,1
100%
Alkalinity (mg CaCO3/L)
14 S.
4 1
Hardness (mg CaCO3/L)
?1ta
z1
Chlorine (mg/L)
4 0. I D
4. 0,10
Temperature (°C)
1-S • 0
1.L`. S.
lit .1
1A.-1
-Ls -O
litS
Initial
Final
Initial
Final
Initial
Final
SOP AT2O-Revision 6-Exhibit AT2O.3

Page 5 of 5
Environmental Testing Solutions, Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Date: 06-08-21
Analyst
Day
(Analyst identified for each day, performed pH, D.O. and conductivity measurements only.)
3
4
5
6
er-A,
eSt,
IDS
PO p
J
/ ,
Yy��/
P
Concentration
Parameter
CONTROL,
MHSW
pH(S.U.)
yr��
ta!+
�/ pp
4."1'F
Q
O.IZ
q p
1 /l•
8.21
^ p
S.o{
®a23
3.n(8
Dissolved oxygen (mg/L)
I1(0
1.5
zr._.
�6i
6
q-g
'4.�.!
7
•
'9
7 3
Z
Conductivity(pmhos/cm)
30S
10 �\
3o'
3 23
Alkalinity (mg Ca CO,/L)
\
4ws•
j�
s!1
Hardness (mg CaCO3/L)
6
8�
�`�`��
R_ 1
Temperature(°C)
^\�,
Z.�- 1
,1 1
1.\• J
`, �•►
1
- 1
A..A.4
1
-\..�i. /�
Z/.y. a
^�
11.25%
pH (S.U.)
0•04
3.84E
.t,'l•
8.Iv
q-?s-
0�.�'p•O
Cs_ I V
'1CI R
03 A3
-]A.,.�.1.
'l-81
Dissolved oxygen (mg/L)
l301
1,/
gna
4.'
8-1
1.,
°4 ®
6,0
V L i
Conductivity (pmhos/cm)
2�1 2_
•311
" &
0
Temperature(°C)
—L�\ • \
-IAA.
-% •6
�.� -S
�-6
Z
Z
'NA-
Z1.A
,
�l -S
`
22.5%
pH(S.U.)
6060
7.1a
%.14
q•grt,
8.9g"
/\{j 12
F.to
v.84
Dissolved oxygen (mg/L)
op
1
S•to
7.v
e k
s l.•3
777
✓i,-94
CJ lJ
7,yl
I
Conductivity (µmhos/cm)
2•°i.1--1
•3o 05
3o0
000
Temperature (°C)
11
�\1- 1
-LA- t
Z-'1 - 8
'``t .1
Z�.-9 a
t,
-IA. 6
-IA1J
'y • 1
-IA. S
45%
pH(S.U.)
116
I./3
c
S
11. &-t
g r-z.
' •P.co
®,0(a
4.db
Dissolved oxygen(mg/L)
63•0
1.�
C.o
O•o
4 B
e--Z
/13
7
IA�1-�
T
Conductivity (pmhos/cm)
2g2.
4qo
ZQ`-t
`zoi 2
Temperature (°C)
R
ZA-S
Z.LI • 6
-. ••i
��t• 1
' • S
��. l
TA -S
pH (S.U.)
^AA.
Bf 3
J
7 .00
�.90
`-
- 9`'t
" 9-d 1
199
4.76
72.5%
Dissolved oxygen (mg/L)
63•1
.1r
-6
e•.Z
�.()
�,�.`
t
conductivity(pmhos/cm)
�1 y
1X1,��9
47S
z.c.G
2ao
//AS
Temperature (°C)
( .
- ..q 5
..
' •\
�41 •I
-NA-,
•�0j
u
pH (S.U.)
/�1L.
• T• 1°
�y
quit
�y o-'\
` . { C.
7- 7 ,
— o
LS
14•14
,�0'1
'"i%.l'/S�
T- 0
Dissolved oxygen(mg/L)
8,1
-�
)-a
-1
,.3
®,
T.y
Conductivity(pmhos/cm)
A91
DIO.12- 1
4(p3
Z6,1
2 w„ei
100%
Alkalinity (mg CaCO,/L)
4l
Hardness (mg CaCO3/L)
mb
Chlorine (mg/L)
< 0 • 1 0
Temperature (°C)
G{
•Itt • 1
--A • S
AS -0
`+ g
Z•'6 • .D
Q,
—LA • e
, `
Z`l - lo
L . 0
TA-3
Initial
Final
Initial
Final
Initial
Final
Initial
Final
SOP AT2O-Revision 6-Exhibit AT20.3

351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
Facility: SEUZ
Rutherfordton WWTP
Species: Pimephales promelas
Test type: Chronic Definitive
NPDES #: NC0025909 Pipe #: 001 County: Rutherford
Purchase order:
Effluent dilution: 11.25, 22.5, 45, 90, 100%
Parameter code: THP6C
Sample information: (to be completed by sample collector)
Composite sample:
Sample location: 0 0 t
Start date: `3 o c&.Dr-'Z., Time: qO`z 1w". Volume collected for testing: 1-
End date: ao• Time: ktp Y Number of containers filled for testing: 2_
Number of samples per hour:
Chilled during collection?
If chilled, specify temperature:
0-6
Method of transport to laboratory: 4A( .
Comments:
Triple rinse sample container with sample before filling. Completely till the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collected by:
Relinquished by:
�22up �
Prim
Relinquished by:
coLLYP
Dale and time
Print Signature Date and lime
Sample receipt information: (to be completed by ETS personnel)
Relinquished to ETS by:
Custody seals intact?:
Signature
Yes No Not used
Samples received in good condition?: 71
Tracking number:
Comments:
Yes
N Pc
tOigatia
Date and time
No
Received by:
Print
Received by:
Signauui
iG--7.1I
(Zyt+l
Date and time
Print Signature I):ue:md time
Received at ETS by:
0%• - tf1-t k
IOIQ
Print Signature
Sample temperature upon receipt at ETS (°C):
Total residual chlorine upon receipt at ETS:
Dale and lime
oR `C
MEI
(DPD Presence/Absense Indicator, MDL = 0.10 mg/L) r,�A�1
Project number :C 4OSample number: It v1Q01 z
Absent

351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
Facility: SEUZ
Rutherfordton WWTP
Species: Pimeph ales promelas
Test type: Chronic Definitive
NPDES #: NC0025909 Pipe #: 001 County: Rutherford
Purchase order:
Effluent dilution: 11.25, 22.5, 45, 90, 100%
Parameter code: THP6C
Sample information: (to be completed by sample collector)
Composite sample:
Start date: D-o4--i'
End date: 0., ear
Number of samples per hour:
Time: L 9
Time: 4 o S e.c•-
Chilled during collection?
If chilled, specify temperature:
Sample location: QO\
Volume collected for testing: Z-(?
Number of containers filled for testing: "L—
Method of transport to laboratory: 14.i1-Q�
Comments:
Triple rinse sample container with sample before filling. Completely fill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, 1 CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collect by:
by:
lti: w
id ..9
ea- 04)-,..1.
w LNSgS
.s-,,,==>
414f. `5'
Relinquished by:
Print
Relinquished by:
tit
Date and time
Received by:
r1ace
Dlo. D 9- 2/
Print
Received by:
*nature
Dale and lime
Print
Signature
Dale and time
Sample receipt information: (to be completed by ETS personnel)
Relinquished to ETS by:
00,032-1
la4-10
Print
Custody seals intact?:
Yes
Signature
No Not used
Samples received in good condition?:
Yes
Tracking number:
Comments:
�A
Dale and lime
No
Pant
Received at ETS by:
Print
Signature
Signature
Sample temperature upon receipt at ETS (°C):
Total residual chlorine upon receipt at ETS:
Dale and Bare
Date and time
(DPD Presence/Absence Indicator, MDL = 0.10 mglL) Pre.,.•nl
Akent
Project number:I Sample number: R 1 oc9.0Z,.

351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
Facility: SEUZ
NPDES #: NC0025909 Pipe #: 001 County: Rutherford
Rutherfordton WWTP Purchase order:
Species: Pimephales promelas Effluent dilution: 11.25, 22.5, 45, 90, 100%
Test type: Chronic Definitive Parameter code: THP6C
Sample information: (to be completed by sample collector)
Composite sample:
Sample location: 0"
Start date: t . - iQ-'t-{ Time: wv-•• Volume collected for testing: j. (T
End date: Vc tL- "t \ Time: (.\.a ( , Number of containers tilled for testing:
Number of samples per hour:
Chilled during collection?
If chilled, specify temperature:
•}
Method of transport to laboratory: K.A,Le .
Comments:
Triple rinse sample container with sample before filling. Completely fill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collected by:
'VW b'-t;
\
`-" S
Ots- 11-1-1
'sus / A t
5
c p
—__)
Relinquished by:
etlIt
kint
Relinquished by:
Print
s
ignature
Sigmmuin
Date and time
Dale and lime
Sample receipt information: (to be completed by ETS personnel)
Relinquished to ETS by:
Print Signature
Custody seals intact?:
No
Samples received in good condition?:
Tracking number:
Comments:
0&-ii.0
Date1V
time
Not used
Yes
OP,
No
Received by:
I
ce.
00.Iran
Print
Received by:
Signature
Date and time
Print
Received at ETS by:
Signature
Dale and time
00.114
Date and time
Print Signature
Sample temperature upon receipt at ETS (°C):
Total residual chlorine upon receipt at ETS:
(DPD Presence/Absense Indicator, MDL = 0.10 mg/L)
Absent
Project number: I I Sample number: p'2k(Sb II.ot

7-day IC25 (g/L KCI)
Environmental Testing Solutions, Inc.
0.9
0.8
0.7
0.6
1.2
1.0
0.8
0.6
0.4
Pimephales promelas
Chronic Reference Toxicant Control Chart
Source: In-house Culture
Control Limits (± 2 Standard Deviations)
1 1 1 1 1 1 I 1 1 1 1 1 1 1 1 1 1 1 1 I
Warning Limits
—'—
•
•
•
•
• •
• •
•
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
O3.°D1,0Oa3O�0O0tiO10O1\Oa011&031 0AO OO6- 00%L
11..V 1.03a9.60.1,$9.01"1.01:03.a096.
Test
date
• 7-day IC25 = 25% inhibition concentration. An estimation of the potassium chloride concentration
which would cause a 25% reduction in Pimephales growth (calculated using ToxCalc).
�....:, Central Tendency (mean logarithmic IC25 converted to anti -logarithmic values)
Control Limits (mean logarithmic IC25 ± 2 standard deviations converted to anti -logarithmic values)
Laboratory Warning Limits (mean logarithmic IC25 ± 2 coefficent of variations converted to anti -logarithmic values)
USEPA Warning Limits (mean logarithmic IC25 ± SA 75 converted to anti -logarithmic values,
SA 75 = 75th percentile of CVs reported nationally by USEPA)
iIlntered
ad
viewed by
m Sumner

Environmental Testing Solutions, Inc.
July 26, 2021
Ms. Ann Baynor
Environment 1, Inc.
PO Box 7085
Greenville, NC 27835
ETS Project Number: 16066
Test Start Date: July 13, 2021
Facility Tested: Rutherfordton WWTP
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for samples received by Environmental Testing Solutions Inc.
Parameter
Code
Test Procedure, Method Number
Result (ChV)
THP6C
Fathead minnow, Pimephales promelas , Larval Survival and Growth Chronic
EPA-821-R-02-013, Method 1000.0
,100%
All toxicity testing results required as part of your permit must be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code
THP6C. Additionally, the DMR Reporting Form AT-5 must be signed and e-mailed or mailed to the
following address:
ATForms.ATB(a�ncdenr.gov
North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Please call if you have any questions concerning these results.
Sincerely,
i Sumner
Laboratory Supervisor
North Carolina Certificate Numbers: Biological Analyses: 037, Drinking Water: 37786, Wastewater: 600
South Carolina Certificate Number: Clean Water Act: 99053-001

Environmental Testing Solutions, Inc.
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Effluent Toxicity Report Form - Chronic Fathead Minnow Multi -Concentration Test Date:
July 26, 2021
Facility: Environment 1, Inc.
NPDES #: NC 0025909 Pipe #: 001 County: Rutherford
Rutherfordton WWTP
Laboratory Performing Test: Environmental Testing Solutions, Inc., Certificate # 037
Signature of Operator in Responsible Charge (ORC):
ORC Phone / E-mail:
Signature of Laboratory Supervisor:
e-Mail to: [e-mail]
Comments
Project 0: 16066
Sample 0 210712.01, 210714.01, 210716.0:
Or Mail Original to: North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Start Date:
July 13, 2021
Control
Organisms
% Effluent
11.25 %
% Effluent
22.5%
% Effluent
45%
% Effluent
72.5%
% Effluent
Water Quality Data
Control
pH (SU):
DO (mg/L):
Temp. (°C):
High Concent
pH (SU):
DO (mg/L):
Temp. (°C):
100%
Test Organisms: Pimephales promelas
Replicate number
1 2 3
Supplier
4
In-house Culture
Begin hatch:
End hatch:
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.930
0.860
0.808
0.891
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.750
0.824
0.732
0.768
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.730
0.758
0.888
0.936
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.718
0.805
0.704
0.895
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.811
0.835
0.810
0.827
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.831
0.787
0.819
0.741
07-12-21 1430
07-13-21 0505
Survival (%)
Average wt (mg)
Average wt /
surviving (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
100.0
0.872
0.872
100.0
0.769
100.0
0.828
100.0
0.781
100.0
0.821
100.0
0.795
Day 0
Day 1
Day 2
Day 3
Day 4
Day 5
Day 6
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
Initial Final
7.97
7.83
7.89
7.64
7.86
7.52
8.03
7.76
7.94
7.85
8.14
7.87
7.99 _
7.77
7.7
7.8
7.6
7.5
7.7
6.7
7.7
7.4
7.7
7.6
7.8
7.5
7.7
7.5
24.8
24.5
24.7
24.5
24.8
24.5
24.8
24.5
24.7
24.6
24.8
24.6
24.7
24.6
7.09
6.98
6.99
6.85
7.66
7.31
7.83
7.56
7.89
7.70
7.94
7.76
7.88
7.65
8.0
7.7
7.8
7.4
8.0
6.8
8.0
7.3
8.0
7.4
8.0
7.6
7.8
7.6
25.0
24.5
24.8
24.6
25.0
24.6
25.0
24.6
24.9
24.5
25.0
24.5
24.9
24.5
Sample Information
Collection start date:
Grab:
Composite duration:
Alkalinity (mg/L CaC0a):
Hardness (mg/L CaC05):
Conductivity ()mhos/cm):
Total residual chlorine (mg/L):
Sample Temp. at Receipt (°C):
Overall Analysis:
Sample 1
Sample 2
Sample 3
Control
07-11-21
07-13-21
07-15-21
24-h
24-h
24-h
20
47
45
58-59
42
38
36
83-87
285
267
266
301-318
< 0.10
< 0.10
< 0.10
1.7
3.3
2.2
Analyses
Normal:
Hom. Var.
NOEC:
LOEC:
ChV:
Method:
Survival
Growth
Yes
Yes
Yes
Yes
100%
100%
>100%
>100%
>100%
>100%
Visual Insp.
Dunnett's
Survival
Growth
% Effluent
Critical
Calculated
Critical
Calculated
11.25%
2.410
2.332
22.5%
2.410
0.995
45%
2.410
2.062
72.5%
2.410
1.158
100%
2.410
1.748
Result: PASS LOEC: >100% NOEC: 100% ChV: >100%
DWR Report Form AT-5

Page 1 of 5
Environmental Testing Solutions, Inc.
Chronic Whole Effluent Toxicity Test (EPA-821-R-02-013, Method 1000.0)
Species: Pimephales promelas
Client: Rutherfordton WWTP
NPDES #: NC 0025909
Project #: llootolo
Dilution preparation:
County: Rutherford
Outfall #: 001
Dilution prep (%)
11.25
22.5
45
72.5
100
Sample was not aerated or treated unless otherwise
Effluent volume (mL)
112.5
225
450
725
1000
noted on this form. Sample was warmed to 25.0 ± 1.0°C
Diluent volume (mL)
887.5
775
550
275
0
in a warm water bath and then diluted to the test
Total volume (mL)
1000
1000
1000
1000
1000
concentrations with moderately hard synthetic water
(MHSW).
Test organism information:
Test information:
Organism source:
In-house culture
Randomizing template:
hp l(,i- ()pa.
Age:
< 24-hours old
Incubator number
and shelf location:
l
Spawn date:
61.01..-11
Artemia CHM number:
CHM1149
Hatch dates and times:
61. ‘Z• -IA 6`4 1 0
0-1- V'S•I_ OS OS
Drying information for weight determination:
Date / Time in oven:
61.1 A-11 RA 1
*Initial oven temperature:
ia+J • C.
Transfer vessel information:
pH (S.U.) = $. •, 5
Temperature (°C) = tip. (1
Date/rime out of oven:
01-IN•21 Ole-k&
*Final oven temperature:
(0(1 C.
Average transfer volume (mL):
< 0.25 mL
Total drying time:
'1."‘•kkOJIILS
*60°C Oven, Thermometer SN: 14-985B5
Daily feeding and renewal information:
Day
Date
Morning feeding
Afternoon feeding
Test initiation, renewal,
or termination
Sample
number
used
MHSW
batch used
Time
Analyst
Time
Analyst
Time
Analyst
0
07-13-21
OS ID
11J1S
'�
U135
1A
'U fn►Z- o l
a-1• o a zl L
1
rot
1 "LOp
OR I 0
( (
2
07-15-21
C3(9o0
11. o0
1�1
0 g ID
U �
K
ZI TWA. 0 t
0-1• It 7.1 I
3
07-16-21
01900
11,00
kt
0 �, I D
Ai
4
07-17-21
O(, GO
p
6 OU
(j{
(? I O
116166. O l
6'1. 1c 1.1 A
5
07-18-21
0.S00
1100
' `
lt
olio
rt?
01-15-u&
6
07-19-21
OS UQ
11
I ((7O
Li
0-1, ®
fj(
5✓
L
7
07-20-21
l
Oi
G
Chemical analyses:
Parameter
Reporting Limit
Method number
Meter
Serial number
pH
0.1 S.U.
SM 4500-H+ B-2011
Accumet AR20
93312452
Dissolved Oxygen (D.0.)
1.0 mg/L
SM 4500-0 G-2011
YSI Model 52CE
18D104324
Conductivity
14.9 µmhos/cm
SM 2510 B-2011
Accumet AR20
93312452
Alkalinity
5.0 mg CaCO3/L
SM 2320 B-2011
Accumet AR20
93312452
Hardness
5.0 mg CaCO3/L
SM 2340 C-2011
Not applicable
Not applicable
Chlorine, Total Residual
0.1 mg/L
ORION 97-70-1977
Accumet AB250
92349123
Temperature
0.1°C
SM 2550E-2010
Digital Thermometer
tjbb(nc'V5
Control information:
Acceptance criteria
Summary of test endpoints:
Mortality:
Q 1,
5 20%
7-day LC so( )
) 61301,
Average weight per initial larvae:
0. 811-
NOEC (%)
1007.
Average weight per surviving larvae:
0 • (L 1 Z
>_ 0.25mg/larvae
LOEC (%)
) 1001,
ChV (%)
e 1007
IC25 (%)
"0 106 1.
SOP AT2O-Revision 6—Exhibit AT20.3

Page 2 of 5
Environmental Testing Solutions, Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Survival and Growth Data
Date: 07-13-21
Day
CONTROL
11.25%
22.5%
A
B
C
D
E
F
G
H
1
J
K
L
0
10
10
10
10
10
10
10
10
10
10
10
10
1
10
(o
io
10
10
10
10
to
10
io
to
(o
2
(0
/0
10
10
10
(0
1D
10
(p
10
to
io
3
lb
/0
10
10
l0
ID
10
10
10
10
10
10
4
IQ
(v
10
10
10
10
1.0
10
ID
10
(u
ID
5
10
10
10
10
10
10
10
10
10
10
10
10
6
I0
10
10
10
10
10
(0
10
10
10
(0
ID
7
l0
10
10
ID
+(3
10
10
10
►0
ID
►0
1t
*A = Pan weight (mg)
Tray color code: eLV P1
t,t1.6J
1S.11
1.Q
13.6-1
13.-A
IS. l %
IS.c(O
IS. g1
l5.li
ty.6g
p(.5°(
t`{.13
Analyst: X(
Date: C' n'v
*B = Pan + Larvae weight (mg)
Analyst: (Y),1.
23.°i3
2.4•3-ir
23.210
21.9 g
21.29
23.43
22: r2
23.y9
22.44
22 210
2`1F
2-9 •`l
Date: 0";-7_2-2)
C = Larvae weight (mg) = B -A
Analyst:
Gl.10
gasp
,.0Q
o t
"1.50
g. I.A
'1 •'S2
1,(
'i. �D
-1.s E'
g, a
ci.510
Weight per initial number of larvae (mg)
= C / Initial number of larvae
Analyst: q
O
04)
0
O
G‘
®
CS'
17
O.
cri
O
bQ
'
O
.
O.
n'
A,
O. (V
Ae='
®
^�
kY
c'�
4�
®
�
V.
r�0
1%�
0.
(1 '
Average weight per initial
number of larvae (mg)
Percent
reduction
from
control (%)
0. %i`—
0.16E
11.`1 I_
d, g La
S. 1 %.
*Weight measurements performed using Cahn 28 Automatic Electrobalance, SN 41520.
Comment codes: c = clear, d = dead, fg = fungus, k = killed, m = missing, sk = sick, sm = unusually small,
Ig = unusually large, d&r = decanted and returned, w = wounded.
Comments:
SOP AT20-Revision 6—Exhibit AT20.3

15
Page 3 of 5
Environmental Testing Solutions. Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Survival and Growth Data
Date: 07-13-21
Day
45%
72.5%
100%
M
N
0
P
Q
R
S
T
U
V
W
X
0
10
10
10
10
10
10
10
10
10
10
10
10
1
(p
ID
10
ID
10
10
(0
10
(0
10
10
ID
2
(0
ID
ID
I1)
10
ID
10
10
10
(0
10
/0
3
ID
/0
/0
/0
10
10
10
10
10
10
10
10
4
10
(0
10
10
10
10
10
10
10
10
10
10
5
10
/0
11)
11
10
10
10
10
10
/()
10
/0
6
10
10
ID
10
10
10
(0
to
10
I0
r0
'0
7
10
l0
Ip
110
10
10
Ip
Ip
i0
1p
10
10
*A = Pan weight (mg)
Tray color code: i,.Ue>1
Iy. g&
I�.1,ti
I gl
A
15.2V
13 .`1ti
1 `l. to3
322
14.21
ISM_
13. S
1 3.gd
I
3LgAnalyst:
Date: Ql • UI•'2.1
*B = Pan + Larvae weight (mg)
Analyst: MII`
22.o(o
�9q.
-J
-71 bs
2a01
24.21
22.05
2:2-fl,G
2.1.32
24.L B
23.A3
2-1.02
219101
2A,1,9
Date: r . tit-11
C = Larvae weight (mg) = B — A
Analyst:
V, g
G•os
1.64
6'•`1S
s.11
&. 5s
S• 10
L. ").-1
g.31
1.0
pb.16$
1.41
Weight per initial number of larvae (mg)
= C / Initial number of larvae
Analyst:
w
n
0.
(1
0
o
N
O
g/
Co
0.
0
h
41
O.
o
�
0.
N
Q''Cb�
0.
\
0.
iNc&
1j•
qD\
0•
0'
Average weight per initial
number of larvae (mg)
Percent
reduction
from control
(%)
0.1i;\
IU.57•
CD.��-`
S.°1 7.
(�. 1�t5
8 7.
*Weight measurements performed using Cahn 28 Automatic Electrobalance, SN 41520.
Comment codes: c = clear, d = dead, fg = fungus, k = killed, m = missing, sk = sick, sm = unusually small,
Ig = unusually large, d&r = decanted and returned, w = wounded.
Comments:
SOP AT2O-Revision 6—Exhibit AT20.3

Rutherfordton WWTP
N
0
N
J
N
O
N
0
O
0
O
ct
tn
N
O
N
O
N.
O O
D N
N N
0 • a
E E
• c
0
u 0
W
'o' E
In
Mean weight/Initial Coefficient of variation Percent reduction from
number of larvae (%) control (Y.)
(mg)
Not applicable
VI
ru.1
ea
O
Ill
N
Vl
ti
eill
.1
Ill
N
m
O
0
m
n
O
coV
N
con
O
m
O
O
O
Meansurvival
(%)
o
O
o
O
O
0
O
M
O
O
O
0
O
O
O
O
.
Weight/ Initial number
of larvae (mg)
O 0
m
0 0
m .i
0 Ol
0 0
0.750
0.824
0.732
0,768
O N
m
n n
O O
m 1O
m m
m m
o 0
0.718
0,805
0.704
0.895
m CO
0 0
0.810
0.827
co n
0 0
.m-I V
0 0
Coefficient of variation
'Pe.. weight v.r..ravi.e number
al ur eel(%)
Lori
cul
0
3
E E
co
0
e
0
w
0
CO
0
CO
0
v1
n
0
Weight / Surviving
number of larvae (mg)
0.930
0.860
0.808
0.891
0 N
m m
0ooa
N m
m 1p
� n
0.730
0.758
0.888
0.936
W
n
0000
0 v1
O 01
m
0.811
0.835
0.810
0.827
rt~I CO
m m CO
0000
O.
�
Larvae weight (mg)
=B-A
m0
c
ai ao
o m
0)
co eo
7.50
8.24
7.32
7.68
7.30
7.58
8.88
9.36
7.18
8.05
7.04
8.95
8.11
8.35
8.10
8.27
Tilt 69'0Z 8Z'ET 0T 0T X
61'8 66'TZ 08'ET 0T 0T M
L8'L Z9'TZ SCET 0T 0T A
TE'8 £L'EZ Zb'ST 0T 0T fl
3
01
=
3
23.93
24.37
23.26
21.98
21.29
23.43
n v
N N
22.47
22.26
23.47
23.49
22.06
22.65
23.01
24.21
22.05
22.98
21.32
24.48
A = Pan weight (mg)
v1
00
o
m all
n
0 .y
Cr m
15.17
14.68
14.59
14.13
14.88
14.60
15.97
15.26
13.94
14.63
CA CA
rrilc
Final number of larvae
10
10
0 0
0 0
0 0
0 0
0 0
0T
OT
O o
0 0
0 0
Initial number of
larvae
10
10
10
10
0T
0T
0T
0T
0 0
0 0
0 0
0 0
0 0
0 0
1
Q m
V n
W LL
l7 2-
-•
-
E Z
0 m
a K.,-
Concentration (%)
Control
N
.
N
N
V
N
n
O
0
0
n
0
O
cally significant in a whole effluent toxicity test.
the minimum percent difference between the control and treatment that can be declared s

Statistical Analyses
Environmental Testing Solutions, Inc.
Entered by:
Kelley Keen
Reviewed by.:
tint Sumner
tl
Larval Fish Growth and Survival Test-7 Day Growth
Start Date: 7/13/2021 Test ID: PpFRCR Sample ID: Rutherfordton
End Date: 7/20/2021 Lab ID: ETS-Envir. Testing Sol. Sample Type: DMR-Discharge Monitoring Report
Sample Date: Protocol: FWCHR-EPA-821-R-02-013 Test Species: PP-Pimephales promelas
Comments:
Conc-%
1 2 3 4
D-Control 0.9300 0.8600 0.8080 0.8910
11.25 0.7500 0.8240 0.7320 0.7680
22.5 0.7300 0.7580 0.8880 0.9360
45 0.7180 0.8050 0.7040 0.8950
72.5 0.8110 0.8350 0.8100 0.8270
100 0.8310 0.7870 0.8190 0.7410
Transform: Untransformed 1-Tailed Isotonic
Conc-% Mean N-Mean Mean Min Max CV% N t-Stat Critical MSD Mean N-Mean
D-Control 0.8723 1.0000 0.8723 0.8080 0.9300 5.907 4 0.8723 1.0000
11.25 0.7685 0.8811 0.7685 0.7320 0.8240 5.180 4 2.332 2.410 0.1072 0.7994 0.9165
22.5 0.8280 0.9493 0.8280 0.7300 0.9360 12.031 4 0.995 2.410 0.1072 0.7994 0.9165
45 0.7805 0.8948 0.7805 0.7040 0.8950 11.332 4 2.062 2.410 0.1072 0.7994 0.9165
72.5 0.8208 0.9410 0.8208 0.8100 0.8350 1.497 4 1.158 2.410 0.1072 0.7994 0.9165
100 0.7945 0.9109 0.7945 0.7410 0.8310 5.061 4 1.748 2.410 0.1072 0.7945 0.9109
Auxiliary Tests Statistic Critical
Shapiro-Wilk's Test indicates normal distribution (p > 0.01) 0.97155 0.884
Bartlett's Test indicates equal variances (p = 0.07) 10.2973 15.0863
Skew Kurt
0.26798 -0.2758
Hypothesis Test (1-tail, 0.05) NOEC LOEC ChV TU MSDu MSDp MSB MSE F-Prob df
Dunnett's Test 100 >100 1 0.10722 0.12293 0.00572 0.00396 0.25666 5, 18
Treatments vs D-Control
Linear Interpolation (200 Resamples)
Point % SD 95% CL(Exp) Skew
IC05` 6.7384
IC10 >100
IC15 >100
IC20 >100
IC25 >100
IC40 >100
IC50 >100
indicates IC estimate less than the lowest concentration
0
50 100
Dose
150
0.9
0.8
0.7
t
3 0.6
2
(7 0.5
a
p 0.4
1'-
0.3
0.2
0.1
0
Dose -Response Plot
1-tail, 0.05 level
- - of significance
U
O
N
N
N
Q
LO
8

Page 4 of 5
Environmental Testing Solutions, Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Date: 07-13-21
Daily Chemistry:
Temperatures performed at the time of test initiation, renewal or termination by the analyst identified in the Daily Renewal Information table
located on Page 1. Alkalinity, hardness and chlorine (total residual) performed by the analyst identified on the bench sheet specific for each
analysis and transcribed to this bench sheet.
Analyst
Day
(Analyst identified for each day, performed pH, D.O. and conductivity measurements only.)
0
1
2
rtsiit-
L►
p 1
tr-f
Q••LJ)
Lk -,Concentration
Parameter
CONTROL,
MHSW
pH (S.U.)
.97
/� .83
" 6 sp
-/
4, (
-1•e�ti
/�
-i,
Dissolved oxygen (mg/L)
3 a
4
-t-S
-1/4
to.4
Conductivity (µmhos/cm)
3 (g
311-
3l42_
Alkalinity (mg CaCO3/L)
5.q
,.0
.�Iz--
5A,
Hardness (mg CaCO3/L)
c� s
AS
Temperature(°C)
ti-1. k
-LA •S
•A.A.1
Z4.5
-LA .k
.'-'
11.25%
pH (S.U.)
-7• `1Z
11-ke
f 5
45,1
B`t
14.4"1
Dissolved oxygen (mg/L)
3•q
4.'1
/
CO
4-'4 (
6, o
(P/'�
Conductivity (µmhos/cm)
30(0
310
303
Temperature (°C)
%.4 . ci\\L9y,,�-,
1App,'��1
1..4.1
(o
c
zzsi
pH (S.U.)
-i• `Jg
'4.': ,
f+4,2-
s 7
-y1
t $�
i-r/ 1{,
7
Dissolved oxygen (mg/L)
Zr> ��,C�
- ,11-
7` 1
aeo
/,t,.
0.4
Conductivity (µmhos/cm)
z� 3o0
bp).
Zgl
Temperature (°C)
'\`(. C1
"Iy' 3
,+
"v-k. • i
-0. (�
.1
-' • (=
45%
pH(S.U.)
7•43
/�
Q.
7.?'1
..e-)
-1•�11
1. %'
'JN3
te. O
Dissolved oxygen (mg/L)
.3.9
11
�4 Q
�Y
` -r.-(
6-0
Conductivity(µmhos/cm)
Z' 5
boL.
Zr3(.9
Temperature (°C)
"\", • 1
1_.-1.1.
"LA. o
L 1. 6
Itty.6t,
Z-`�• t
pH(S.U.)
3-53
37
�•`i'
�2G
"7•81
74.30
72.5 %
Dissolved oxygen (mg/L)
6,0
..y
1'.0
•.7
6.0
(0.6
Conductivity (µmhos/cm)
Z9Z
2614
Z �r-5
Temperature (°C)
IS. 0
Zi1.lo
•\ ►l•
' /
---1,•.1
L't.9
1A -
pH(S.U.)
-y
'L-01
(D.1tc3
e
,(• .11
6.65
-4.U.
1.31
kLet
oxygen (mg/L)
, .0Dissolved
(IA- -
'r.1,61
• N
6O,0
Conductivity (µmhos/cm)
ZS
2q 3
ZG I-
100%
Alkalinity (mg CaCO3/L)
'LO
r41
Hardness (mg CaCO3/L)
41,
-1?
Chlorine (mg/L)
< () . 10
'O .l 0
Temperature (°C)
-LS • 0
"IA . S
-l- 8
1-'1. 6
,0
ti (0
Initial
Final
Initial
Final
Initial
Final
SOP AT2O-Revision 6-Exhibit AT20.3

Page 5 of 5
Environmental Testing Solutions, Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Date: 07-13-21
Analyst
Day
(Analyst identified for each day, performed pH, D.O. and conductivity measurements only.)
3
4
5
6
i/L,
list,
0-1 r
iMP
4
1'
Concentration
Parameter
CONTROL,
MHSW
pH (S.U.)
0,1)3
1.34.0
4.94
4. es-
P. r9
'4
'•1'c
?• 74
Dissolved oxygen (mg/L)
1. 7
1.4
7 q
'7 (o
,moo
?
?- s
'7 '7
-y- 5-
T
Conductivity(pmhos/cm)
aDt
30
31
.7P-i-7
Alkalinity (mg CaCO3/1)
St\
SR
�`1
Hardness (mg CaCO3/1)
�-'$.
g -1
.g'
- t%
Temperature (°C)
•.�O
-Vt.
Z.�•b
r!
.1A, Q
1, 1 1
..
�•1��,y-5
t: t ..'1
A.:\ •Lo
11.25%
pH(S.U.)
Btu\
7415
J5_
TV
("NA .1
3.03
7.eo
St.O
�''']l
7 L9
-9W
7-el
Dissolved oxygen (mg/L)
1q
715
11
7AI
e- O
' -S
3-6'
3 5
7
Conductivity (pmhos/cm)
2'9';
302.
: - -_
312.
Temperature (°C)
i.`A
1�
--
-,
i .� -1
•
IA- •Q'IA��
. \
-N.A. d
..
22.5%
pH (S.U.)
/•
N. 6
1.3 t
4.63
U Qq
4 (Ig--
9t�
�71.q.t�
Z"• _r q
Dissolved oxygen (mg/L)
' A
3.4.
.'
A-
6-A
7-.5-
q oa
"/ y
Conductivity(pmhos/cm)
Z:i O.4
491W„
ro‘
3
Temperature (°C)
i�l ."1
,.,t• b
1}11l • ¢ ^
IA- to
-.b p
6' 4
•"vit
�LkJ 'L
• t,
i.A' S
45%
pH(S.U.)
gen
4 ►
3.Rl•
/-30
S-ec
1-62s
7:19
1,q3
Dissolved oxygen (mg/L)
^-a
`f
-1.4
1 i
4,ei
e ,0
45
�l3
S
Conductivity (pmhos/cm)
1lo
yQ
p
Z e_
?Tea
Temperature(°C)
AAA
.1
11.`►•tj
`( p
`
,ter
AS.-.S
"'!•&
-1
"LA.1
pH (S.U.)
766
3.62.
y�•'9•b
-A2.
y1!'a
'f •71,
y-LS.0
4-16
1-'9
7. 9"
1 71
72.5%
Dissolved oxygen (mg/L)
1.4
1.,41
1, [J
6
0-.o
7. c)
7 g
>,S
7
Conductivity (pmhos/cm)
eV/e)
07 rto
C LpZ,
2 i'
Temperature (°C)
1.S ..�0
• S
-1 . C
t"6 • S
ZS .0
�i�-'- -S
`'
.1,
-i.\ . S
pH (S.U.)
rr
- j'.e.3
-1-tA
.C.54,
'7
43 1
g40
I �7�
' ‹..
'`yA,,
7. de
eas-
Dissolved oxygen (mg/L)
l7t .
4,
Ito
• c.t
C-O
Co
'$.e.
-7
Conductivity (pmhos/cm)
a 69 40
Qe.247
Z6-4-
._7ia
4 7S
100%
Alkalinity (mg CaCO,/L)
, 1;
Hardness (mg CaCO3/L)
6
Chlorine (mg/L)
C©• 1 O
Temperature (°C)
1-5 . O
-VA. to
-A A
.1
't .S
Z. O
-S U,
-• S
y`� .'
6•
,+
1.'i..S
Initial
Final
Initial
Final
Initial
Final
Initial
Final
SOP AT20-Revision 6-Exhibit AT20.3

351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
Facility: SEUZ
Rutherfordton WWTP
Species: Pimephales promelas
Test type: Chronic Definitive
NPDES #: NC00259O9 Pipe #: 001 County: Rutherford
Purchase order:
Effluent dilution: 11.25, 22.5, 45, 90, 100%
Parameter code: THP6C
Sample information: (to be completed by sample collector)
Composite sample:
Start date: O U Time: C(9,
End date: 0'1. C2--" Time: toz•
Number of samples per hour:
Chilled during collection? Y"2-S
If chilled, specify temperature:
Triple rinse sample container with sample before filling.
Sample location:
Volume collected for testing:
Number of containers filled for testing:
Method of transport to laboratory:
Comments:
Completely fill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collected lay:
,-,..tot
Relinquished by:
Relinquished by:
`--
07.E z- `f
t..\:\kr:
Q
xVs-
Print
Relinquished by:
lure
Date and time
Received by:
1ftv1%00I
-7- I2-2.1
- raW►.t�,'
%lam
riot
Received by:
Signature
Dale and time
Print
Signature
Dam and lime
Sample receipt information: (to be completed by ETS personnel)
Relinquished to ETS by:
VOrb1
v0.W
12-2,1
1 p'- i
rent
Custody seals intact?: F
Yes
Signature
No
Samples received in good condition?:
Tracking number:
Comments:
Not used
Yes
Date and lime
No
+ix+ 1Z7-f
Print
Received at ETS by:
Signature
Date and time
lib-
IA-
u+•12.21
/17 4 1
Print
Signature
Sample temperature upon receipt at ETS (°C):
Total residual chlorine upon receipt at ETS:
Date and time
(DPD Presence/Absense Indicator, MDL = 0.10 mg/L) Pre.rnt
Absent
Project number: (paou,Sample number: Zi 17}IL.01

Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
Facility: SEUZ NPDES #: NCOO259O9 Pipe #: 001 County: Rutherford
Rutherfordton WWTP Purchase order:
Species: Pimephales promelas
Test type: Chronic Definitive
Effluent dilution: 11.25, 22.5, 45, 90, 100%
Parameter code: THP6C
Sample information: (to be completed by sample collector)
Composite sample:
Start date: CP—lS-14
End date: pi
Number of samples per hour:
Chilled during collection?
If chilled, specify temperature:
Time:
Time:
sz
yzi
Sample location:
Volume collected for testing:
Number of containers filled for testing:
Method of transport to laboratory:
Comments:
Triple rinse sample container with sample before filling. Completely fill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collected by:
o L
`...— Q.r—
--t.
�" - 1'D
Relinquished by:
tl I"—
e.
0.
+
cs)-''(4 -t-i
not
Relinquished by:
Si nature
Dale and time
Received by:
Ma ct
0,,,
*74
tint
Received by:
Signature
Date and lime
Print
Signature
Date and time
Sample receipt information: (to be completed by ETS personnel)
Relinquished to ETS by:
1Q(4-'
Ouoo
not
Custody seals intact?: J
Yes
Signature
No
Samples received in good condition?:
Tracking number:
Comments:
Nol used
Yes
Date and time
No
Print
Received at ETS by:
Signature
Date and time
l ,c,
0.4A y,14
not
Signature
Sample temperature upon receipt at ETS (°C):
Total residual chlorine upon receipt at ETS:
(DPD Presence/Absense Indicator MDL = 0.10 mg/L)
Project number: 1 "1 T Sample number: /1 1(4 •01
tit Wu)
Date and time
33.
Present
Absent

351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
Facility: SEUZ
Rutherfordton WWTP
Species: Pimephales promelas
Test type: Chronic Definitive
NPDES #: NC0025909 Pipe #: 001 County: Rutherford
Purchase order:
Effluent dilution: 11.25, 22.5, 45, 90, 100%
Parameter code: THP6C
Sample information: (to be completed by sample collector)
Composite sample:
Start date: co -1, (- •t- Time: ') c'10
End date: co')
Number of samples per hour:
Time:
Chilled during collection? Va-s)
If chilled, specify temperature: '4 •
Sample location:
Volume collected for testing:
Number of containers filled for testing:
Method of transport to laboratory:
Comments:
Triple rinse sample container with sample before filling. Completely fill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collected by: -
Relinquished by:
-rtolds
o �- t
o
I
Print
Relinquished by:
Signature
Date and time
Received by:
Ki2/Ct-
(l�
I !/ -(
Print
Received by:
Signature
Date and time
Print
Signature
Dale and limo
Sample receipt information: (to be completed by ETS personnel)
Relinquished to ETS by:
9 1-0
Print
Signature
Custody seals intact?:
Yes No Not used
Samples received in good condition?: 111
Yes
Tracking number:
Comments:
Date and time
No
Print
Received at ETS by:
Print
Signature
Signature
Sample temperature upon receipt at ETS (°C):
Total residual chlorine upon receipt at ETS:
Dale and time
Date and limo
(DPD Presence/Absense Indicator, MDL = 0.10 mg/L) PfSenl
Absent
Project number A�b� Sample number: Ai (51'b'0

7-day IC25 (g/L KC!)
Environmental Testing Solutions, Inc.
0.9
0.8
0.7
0.6
1.2
1.0
0.8
0.6
0.4
Pimephales promelas
Chronic Reference Toxicant Control Chart
Source: In-house Culture
I I 1 1 I 1 11 1 1 1 1 1 1 1 I 1 1 11
•
•
•
Control Limits (± 2 Standard Deviations)
• •
•
•
•
•
•
•
•
• •
•
•
•
•
11 III 11 III 11 III 11 III
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Warning Limits
•
•
• •
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0101 � �,0�0O,03,O0� .050'SS'6 3 ��'�1
1-3y6" -3�)oS)90.01011,.0�,0$p-01 �O1'a06�0DO0a-01'�11.y6.1,
Test date
• 7-day IC25 = 25% inhibition concentration. An estimation of the potassium chloride concentration
which would cause a 25% reduction in Pimephales growth (calculated using ToxCalc).
Central Tendency (mean logarithmic IC25 converted to anti -logarithmic values)
Control Limits (mean logarithmic IC25 ± 2 standard deviations converted to anti -logarithmic values)
Laboratory Warning Limits (mean logarithmic IC25 ± 2 coefficent of variations converted to anti -logarithmic values)
USEPA Warning Limits (mean logarithmic IC25 ± SA 75 converted to anti -logarithmic values,
SA75 = 75th percentile of CVs reported nationally by USEPA)
Inter,ed
ed
iewedby
m 5umne

Environmental Testing Solutions, Inc.
May 19, 2021
Ms. Ann Baynor
Environment 1, Inc.
PO Box 7085
Greenville, NC 27835
ETS Project Number: 15940
Test Start Date: May 04, 2021
Facility Tested: Rutherfordton WWTP
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Enclosed are toxicity test results for samples received by Environmental Testing Solutions Inc.
Parameter
Code
Test Procedure, Method Number
Result (ChV)
THP6C
Fathead minnow, Pimephales promelas , Larval Survival and Growth Chronic
EPA-821-R-02-013, Method 1000.0
>100%
All toxicity testing results required as part of your permit must be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code
THP6C. Additionally, the DMR Reporting Form AT-5 must be signed and e-mailed or mailed to the
following address:
ATForms.ATBia'?,ncd enr. qov
North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Please call if you have any questions concerning these results.
Sincerely,
Jim Sumner
Laboratory Supervisor
North Carolina Certificate Numbers: Biological Analyses: 037, Drinking Water: 37786, Wastewater: 600
South Carolina Certificate Number: Clean Water Act: 99053-001

Environmental Testing 5olutimn, Inc
PO Box 7565
Asheville, NC 28802
Phone: [phone]
Fax: [phone]
Effluent Toxicity Report Form - Chronic Fathead Minnow Multi -Concentration Test Date: May 19, 2021
Facility: Environment 1, Inc.
NPDES #: NC 0025909 Pipe #: 001 County: Rutherford
Rutherfordton WWTP
Laboratory Performing Test: Environmental Testing ions, In er Mate # 037
Signature of Operator in Responsible Charge (ORC):
ORC Phone / E-mail:
Signature of Laboratory Supervisor: 44.{0.}.1;?...-"
Comments
Project SI: 15940
Sample 0: 210503.02, 210505 01, 210507 0
e-Mail to: ATForm5.AT8C1ncdenr.8ov
Or Mail Original to: North Carolina Division of Water Resources
Water Sciences Section / Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Test Start Date:
L
My 04, 2021
Control
Organisms
% Effluent
Test Organisms: Pimephales promelas
Supplier
Replicate numbe
1 2 3 4
In-house Culture
Begin hatch:
End hatch:
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weight/original (mg/larvae)
0.796
0.755
0.746
0.850
Surviving number of larvae
10
10
10
10
11,25%
% Effluent
% Effluent
f 45%
% Effluent
Original number of larvae
W eight/original (mg/larvae)
10
10
0.752 0.806
10
0.783
10
0.794
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
'Weight/original (mg/larvae)
0.766
0.775
0.782
0.785
Surviving number of larvae
Original number of larvae
10
10
10
10
10
10
10
10
72.5%
Effluent
Weight/original (mg/larvae)
0.800
0.831
0.817
0.768
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
Weightioriglnal (mg/larvae)
0.870
0.782
0.912 I
0.842
100%
Water Quality Data
Control
pH (SU):
DO (mg/L)
Temp. (°C):
High Concent
pH (SU):
DO (mg/L):
Temp- (°C):
Surviving number of larvae
10
10
10
10
Original number of larvae
10
10
10
10
'Weight/original (mg/larvae)
0.767
0.822
0.853
0.817
05.03-21 1430
05.04-21 0557
Survival (%)
Average wt (mg)
Average wt /
surviving (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
Survival (%)
Average wt (mg)
100.0
0.787
0.787
100.0
0.784
100.0
0.777
100.0
0.804
100.0
0.852
100.0
0.815
Day 0
Initial Final
Day 1
Initial 1 Final
Day 2
initial Final
Day 3
Initial r Final
Day 4
Initial Final
Day 5
Initial Final
Day 6
Initial Final
8.09
7.49
7.57
7.47
7.63
7.38
7.80
7.39
7.63
7.54
7.74
8.20
8.42
8.05
7.6
7.7
7.7
7.8
7 7
7.4
7.7
7.3
7.9
7 4
7.7
7.5
7.7
7.5
24.8
25.0
24.8
24.7
24.7
24.8
24.8
24.7
24.8
24.5
24.7
25.0
24.8
24.5
7.97
7.29
7,41
7.39
7.40
7.00
7.42
7.07
7.25
7.08
7.24
7.80
7.79
7.62
7.9
7.7
7.8
7.9
7.8
7.3
8.1
7.2
7.9
7 3
7.8
7 4
7.9
7.6
25.0
24.9
25,0
24.9
25.0
24.7
25.0
24.7 _
25.0
24.5
24.8 .
24.9
25.0
24.6
Sample Information
Collection start date:
Grab:
Composite duration:
Alkalinity (mg/L CaCOs):
Hardness (mg/L CaCO3):
Conductivity (pmhos/cm):
Total residual chlorine (mg/L):
Sample Temp. at Receipt (°C):
Overall Analysis:
Sample 1
Sample 2
Sample 3
Control J
05-02-21
05-04-21
05-06-21
24-h
24-h
24-h
42
32
27
59,61,61
36
36
36
83,87,83
261
253
254
306-318
< 0.10
< 0,10
< 0.10
3,3
1.3
3.3
Analyses
Normal:
Horn, Var.
NOEC:
LOEC:
ChV:
Method:
Survival
Growth
Yes
Yes
Yes
Yes
10096
100%
>100%
>100%
>100%
>100%
Visual Insp.
Dunnett's
Survival
Growth
% Effluent
Critical
Calculated
Critical
Calculated
11.25%
.
2.410
0.098
22.5%
.
2.410
0.381
45%
-
2.410
-0.674
72.5%
-
-
2.410
-2.531
100%
2.410
-1.095
Result: PASS LOEC: >100% NOEC: 100% ChV: >100%
DWR Report Form AT-5

Page 1 of 5
EnvlranmentalTesling Solull°ns, Inc.
Chronic Whole Effluent Toxicity Test (EPA-821-R-02-013, Method 1000.0)
Species: Pirnephales pramelas
Client: Rutherfordton WWTP
NPDES #: NC 0025909
Project #: ‘Sa-to
Dilution preparation:
County: Rutherford
Outfall #: 001
Dilution prep (%)
11.25
22.5
45
72.5
100
Sample was not aerated or treated unless otherwise
Effluent volume (mL)
112.5
225
450
725
1000
noted on this form. Sample was warmed to 25.0 ± 1,0°C
Diluent volume (mL)
887.5
775
550
275
0
in a warm water bath and then diluted to the test
Total volume (mL)
1000
1000
1000
1000
1000
concentrations with moderately hard synthetic water
(MHSW).
Test organism information:
Test information:
Organism source:
In-house culture
Randomizing template:
02-NJliQ
Age:
< 24-hours old
Incubator number
and shelf location:
to 11
Spawn date:
n.1.-14 *IA
Artemia CHM number:
CHM1149
Hatch dates and times:
OS •6S'1.% i%k Q -rDrying
OS-0`1- IA 0 SS"1
information for weight determination:
Date / Time in oven:
DS-1l1J QUO
*Initial oven temperature:
Ir o • C
Transfer vessel information:
pH (S.U.) = 8. O
Temperature (°C) = 1.4.
Date / Time out of oven:
n5-t1-•l.4 of 10
i o •C
*Final oven temperature:
Average transfer volume (mL):
< 0.25 mL
Total drying time:
-1A-Aodtt$
*60°C Oven, Thermometer SN: 14-985B5
Daily feeding and renewal information:
Day
Date
Morning feeding
Afternoon feeding
Test initiation, renewal,
or termination
Sample
number
used
MHSW
batch used
Time
Analyst
Time
Analyst
Time
Analyst
0
05-04-21
o to 00
K
11-00
IA
0 e s t
-1.1 aStr5.e-.
4.j1.1•u A
1
05-05-21
O SOO
x
1l oo
g
cis —
t
1
.tom
2
05-06-21
aeon
u •
rEoO
o$ a 9
1tOSD5 .0
oil Z1uC
3
05-07-21
oSOc
I-
1
01SL
pi
I
1.r
a
OS-Os-21
pt.00
hr
I ZpV�.14_
j�
o f SO
1(14
6CI, ok
ns•ob-u A
5
05-09-21
OtooO
t
vlo
Os�Q
6
05-10-21 6,,rM
$oSo')
MU
A
�SU
\..
- 7
05-11-21
() 8 g
lk
Chemical analyses:
Parameter
Reporting Limit
Method number
Meter
Serial number
pH
0.1 S.U.
SM 4500-H+ B-2011
Accumet AR20
93312452
Dissolved Oxygen (D.0.)
1.0 mg/L
SM 4500-0 G-2011
YSI Model 52CE
18D104324
Conductivity
14.9 µmhos/cm
SM 2510 B-2011
Accumet AR20
93312452
Alkalinity
5.0 mg CaCO3/L
SM 2320 B-2011
Accumet AR20
93312452
Hardness
5.0 mg CaCO3/L
SM 2340 C-2011
Not applicable
Not applicable
Chlorine, Total Residual
0.1 mg/L
ORION 97-70-1977
Accumet AB250
92349123
Temperature
0.1°C
SM 25506-2010
Digital Thermometer
t3oblo 468S
Control information:
Acceptance criteria
Summary of test endpoints:
% Mortality:
r o7.
<_ 20%
7-day LCso (%)
, I Op 7.
Average weight per initial larvae:
0.1 kl
NOEC (%)
1 bpi.
Average weight per surviving larvae:
0.1 (t 1
L. 0,25mg/larvae
LOEC (%)
> I OQi.
ChV (%)
160 1,
IC25 (%)
> I on 7.
SOP AT2O-Revision 6—Exhibit AT20.3

Page 2 of 5
EnvIron mental Testing Solutions, Inc.
Species: Pimephales promelas
Client: Rutherfordton WWTP
Day
0
1
2
3
4
5
6
7
*A = Pan weight )
Tray color codee4C n
Analyst:
Date: 1 i . W .24
*B = Pan + Larvae weight (mg)
Analyst:
Date: AS - t6 • II
C = Larvae weight (mg) = B — A
Analyst:
Weight per initial number of larvae (mg)
= C / Initial number of larvae
Analyst:
Average weight per initial
number of larvae (mg)
Percent
reduction
from
control (%)
A
10
10
10
10
10
/0
da
to
27,.5°1
hP
r
CONTROL
B
10
ID
10
to
10
/U
/0
10
Il b2fo
1Z.Q1
•.'.SS
y�
1-
0.'1% 1
C
10
to
10
10
10
JV
/1
10
INAS
1•yb
_
10
10
1 0
ID
Ip
/0
10
11,118
/4- so
1O
O
Survival and Growth Data
E
10
10
10
10
1p
/0
/0
10
811
1.57.
11.25%
F
10
10
10
I0
10
/0
/0
10
/y.UB
R. O.
f
o ."111
10
to
10
10
10
/0
/0
10
Iy q►
-1.1 b
n
*Weight measurements performed using Cahn 28 Automatic Electrobalance, SN 41520.
10
1p
10
l 1J
(0
/0
lO
10
15,4
O
Date: 05-04-21
10
ID
(0
16
10
/v
l0
10
139i
0.
22.5%
J
10
I0
10
IO
10
10
l0
/0
12.310
O
Comment codes: c = clear, d = dead, fg = fungus, k = killed, m = missing, sk = sick, sm = unusually small,
Ig = unusually large, d&r = decanted and returned, w = wounded.
10
10
10
10
10
l0
ID
1D
114.32
1.12
N
O'
r
Comments:
L
10
Cb
10
ID
10
/l
JD
0
/3.►6
1.&S
n
O
SOP AT20-Revision 6—Exhibit AT20.3

Page 3 of 5
Environmental Testing Solutions, Inc,
Species: Pimephales promelas
Client: Rutherfordton WWTP Date: 05-04-21
Survival and Growth Data
Day
0
10
45%
N 0
10 10
P
10
10
72.5%
R
10
S T
10 10
u
10
10
100%
w
10
x
10
1
10
(0 10
2
3
4
5
6
7
*A = Pan weight (mmj,
Tray color code
Analyst: VI—.
Date: 01(.10•2.(
*B = Pan + Larvae weight (mg)
Analyst: a�
Date: O S. 11
C = Larvae weight (mg) = B — A
Analyst:
Weight per initial number of larvae (mg)
= C / Initial number of larvae
Analyst:
,
Average weight per initial
number of larvae (mg)
Percent
reduction
from control
(%)
0
to
I0
10
to
0'
Ip 1p
1
0
1
0
l0 10
10 ID
(0 10
5.01 13A o
-1:1431 11.m
g•31 !i•►1
4.3
O• O•
10
10
10
/0
(0
15.36
O•
a•goa -2.21.
10
l0
10
(D
/0
ID
u.r-
10
(10.44
n0
O
tp
(0
10
l0
o
10
115.2
es.�N
0.IsS2
10 10
l0 t0
(D (0
(D 10
/0 10
ID la
L
10 rb
l3.(ta 13.93
11.1& 1.1.-35
g.lt 8•1-11..
00'
10
I0
10
Ip
10
13.24
1.11
O'
10
(0
10
I0
/1)
/D
10
alit°
g•11.
O.
0.cAS
10
1D
Ip
10
/0
lo
/0
I3.941
-LZ.4'l
8.53
0
10
1
0
1 0
1p
/0
/0
1O
115.90
8.1'1
O•
*Weight measurements performed using Cahn 28 Automatic Electrobalance, SN 41520.
Comment codes: c = clear, d = dead, fg = fungus, k = killed, m = missing, sk = sick, sm = unusually small,
Ig = unusually large, d&r = decanted and returned, w = wounded.
Comments:
SOP AT2O-Revision 6—Exhibit AT20.3

Quality Control: Verification of Data Entry, Calculations, and Statistical Analyses
Rutherfordton WW1?
Project number: 15940
Sample numbers 210503.02, 210505.01, 210507.01
Percent reduction front
control Ixl
A
-
o.
Z
d
O
.Ni
N
N
N
W
;
$ X
_
x
0
z.
0
.o
m
.'i
i
0
rri
v
1n
e
e
Mean .., hht 11041
number of ame
lmrl
0
o
m
n
m
F
O
O
O
N
O
.N.
O
rt
X
T
O
Ft
0
o
O
5
O
N
O
o
O
0
E
1 ..2..nn
3
0 o
0.746
0.850
n
0 0
n
o 0
n•n
0 0
0 .0
a°w
0 0
o°
0 0
0.870
0.782
0.912
0.842
0 0
mm
0 0
'
9
X
8
°
m
m
o
m
0
e
il
3 E o
i 2 -
n
0
n
0
E.
o
m
a
w
o
a
0
co
ial
-
3 E
Low
0 0
0 o
0.746
0 850
now
0 w
d o
ono.
6 0
loom
o a
0 0
0.782
0.785
oo-In
0 0
O O
co
0 0
O O
o ru
N 0
O G
cti co
0 0
O O
nt noon,
0 0
O O
0 00
O O
E
.'a
3 m
i
9
88
n N
42
h °G
v`n''i.o
h O
wm
n n
2 n
r n
aq8
n n
o m.ai
m o°
2
ro r
Po mr.�,c
10 •r.
°i mo
1 r'm.n-i^
r� r4
c0 m
8 = Pan, Lama
weicM (me)
q E7,,
N RI
32
ry N
n."+nm
N N
N N
2115'
N P.;
N .N
22.74
23.32
oryrym
N N
26.14 7
22.94
rvm
ry N
mma7m
N N
ry ry
E
-
O
a
.G
Vry
.y to
m
m.r
to ..
n 8
rv0mv
, H
.-I 4
to ti
ni
°�
mm
.'-i `"a
N
m.'O+
.-i ..
n om
.. .-I
O m
.. �.�.
O ry
vui
.1Oi .
T
nirn
..'a
n l00
w ....
m Om
.1
s
..
$
3
0T
Pc•0
0 o
O5
10
10
00
0 0
0 o
O Pc
00
10
10
52
li
EE
S ''
0 0
o o
5 o
o 0
0 0
0 0„
0
0 0
„ D
0 0
0 0
0 0
9
<ouowLLax.-,x-o2zooarocolnm>x
:
o
9
Control
.
N
V
n
8
°
0
co 2
O
O
ti
w
2
stically significant in a whole effluent toxicity test.
ri
Lower and upper PMSD bounds were determined from the 10th and 90th percentile, respectively, of PMSD data from EPA's WET Interlaboratory Variability Study (USEPA, 2001a;
0
.57
USEPA. 2001a, 2001b. Final Report: Interlaboratory Variability Study of EPA Short-term Chronic and Acute Whole Effluent Toxicity Test Methods, Volumes land 2-Appendix. EPA-821-8-01-004 and EPA-821-8-01-005. US Environ men:al Protection Age

Statistical Analyses
Environmental Testing 5olullons, Inc.
Larval Fish Growth and Survival Test-7 Day Growth
Start Date: 5/4/2021 Teal ID: PpFRCR Sample ID: Rulherfordton
End Date: 5/11/2021 Lab ID: ETS-Envir. Testing Sol. Sample Type: DMR-Discharge Monitoring Report
Sample Date: Protocol: FWCHR-EPA-821-R-02-013 Test Species: PP-Pimephales promelas
Comments:
Conc-% 1 2 3 4
0-Control 0,7960 0.7550 0.7460 0.8500
11.25 0.7520 0.8060 0.7830 0.7960
225 0.7660 0.7750 0.7820 0.7850
45 0.8000 0.8310 0,8170 0.7680
72.5 0.8700 0.7820 0.9120 0.6420
100 0 7670 0.8220 0,8530 0.8170
Transform: Untransformed 1-Tailed Isotonic
Conc-% Mean N-Mean Mean Min Max CV% N t-Stat Critical MSD Mean N-Mean
D-Control 0.7868 1.0000 0.7868 0.7460 0.8500 6.031 4 0,8030 1,0000
11.25 0,7843 0.9968 0.7843 0.7520 0.8060 2.993 4 0.098 2.410 0.0616 0.8030 1.0000
22.5 0.7770 0.9876 0.7770 0,7660 0.7850 1.087 4 0.381 2.410 0.0616 0.8030 1.0000
45 0.8040 1.0219 0.8040 0.7680 0.8310 3.376 4 -0.674 2.410 0.0616 0.8030 1.0000
72.5 0.8515 1.0823 0.8515 0.7820 0.9120 6.405 4 -2.531 2.410 0.0616 0.8030 1.0000
100 0.8148 1.0356 0.8148 0.7670 0.6530 4.369 4 -1.095 2.410 0,0616 0.8030 1.0000
Auxiliary Tests Statistic Critical Skew Kurt
Shapiro-Wirles Test Indicates normal dis1ribullon ip > 0.01) 0.97037 0.884 -0 0786 0.20229
Bartlell'e Test indicates equal variances (.0 = 0.16) 8.0145 15.0863
Hypothesis Test (1-tail, 0.05) NOEC LOEC ChV TU MSDu MSDp MSB MSE F-Prob df
Dunnett's Test 100 >100 1 0.06165 0.07036 0.00303 0.00131 0 08668 5, 18
Trealments vs D-Control
Point
IC05 >100
IC10 >100
IC15 >100
IC20 >100
IC25 >100
IC40 >100
1050 >100
Linear Interpolation (200 Resamples)
SD 95% CL(Exp) Skew
1.0
0.9
0.8
0.7:
0.6
0.5
c
a 0.4
g 0.3 -
C
0.2 -
0.1
0.00p-0 D 9
-0.1
0.2
0 50 100
Dose %
150
Dose -Response Plot
0.9
a-
0.8
0.7
5 0.6
e
c1 0.5
0.4
• 03
0.2
0.1
0
2 N ry N
• N A
O
U
O
1-tail, 0.05 level
of significance

Page 4 of 5
EnvironmentalTesting Solutions, Inc.
Species: Pime_phales pramelas
Client: Rutherfordton WWTP
Date: os-o4-21
Daily Chemistry:
Temperatures performed at the time of test initiation, renewal or termination by the analyst identified in the Daily Renewal Information table
located on Page 1. Alkalinity, hardness and chlorine (total residual) performed by the analyst identified on the bench sheet specific for each
analysis and transcribed to this bench sheet.
Analyst
Day
(Analyst identified for each day, performed pH, D.O. and conductivity measurements only.)
0
1
2 _
Mr
KO
KD
ICD
Ko
1 i t'
Concentration
Parameter
`
CONTROL,
MHSW
pH (S.U.)
��pp
e. 09
7.'41
.-1.--;
•1.'ri
7 .(j3
13
Dissolved oxygen (mg/L)
. .1
-7.1
-7.-1
'). 3
-I.1
04
Conductivity (µmhos/cm)
3 l %
'3Is
1'S
Alkalinity (mg CaCO3/L)
SC1
Ls
Hardness (mg CaCO3/L)
g j
6
fl:•t
S-1
Temperature (°C)
LA.. &
%S.O
• $
1A.1
1?1• 1
t' • t
11.25%
pH(S.U.)
46.ie
-1.6I
1•671
1. 43
1.Lvv
1.1:1-
/•'JJ
Dissolved oxygen (mg/L)
. Zg
'%. Co
1.1
-1. 9
1.1
Conductivity (µmhos/cm)
3Ca13
3 r"1
71 1
Temperature (°C)
1A. $
1` i • 1
"1-4 .
-Ls- 0
1:1.1
1-c1• to
22.5%
pH (S.U.)
8. IS
1. &18
1-C`i
'1. 1.(tq
1.(.4
:4$
Dissolved oxygen (mg/L)
`7.. 1g
--j . (9
-1 .2)
-L g
-)•')
.5
Conductivity (µmhos/cm)
Zqy
Sit,
3v3
Temperature (°C)
AA. k
•b •1
-LA -di
1,`1.. a.
1V'• $
�j-IA-I.
i ,,ZZ
45%
pH(S.U.)
g0,
1. 1-1-1
1.5ci
"1.yt.l
7.'%
Dissolved oxygen (mg/L)
4 f9
1. t.9
% e
1 .1
7. ')
4.3
Conductivity (µmhos/cm)
2 rj I
10a
2e7
Temperature (°C)
_\ .g
LA .9
15 .1
1-4. g
Z44. t
72 5/o
pH(S.U.)
8.p'�
'1.`12
1.`18
'1.`i3
1.53
�1�.el
'1.110
Dissolved oxygen (mg/L)
`4.1
1. V
-2. g
1 . °I
• ). $
1.3
Conductivity (µmhos/cm)
-2. Z
283
27Fa
Temperature (°C)
-).. t. \
NA, . ¢
ZS :0
'. . gP
Z4. i
1.4.1
pH(S.U.) araY21
a.1.97/).-LnI
1.41
1.34
1.6Iv
'1..00
Dissolved oxygen (mg/L)
'1.ri
1. Z
'7 .6
7. °(
-I . %
1,3
Conductivity (µmhos/cm)
2 (, 1
2 (fr
2 S3
100%
Alkalinity (mg CaCO3/L)
LIZ
1-2_-
Hardness (mg CaCO3/L)
IL
3IQ
Chlorine (mg/L)
L Q , (0
' 0 .ID
Temperature (°C)
IS, 0
1_y.9
tS . 0
14. `t
't-5.0
t 4.r1
Initial
Final
Initial it
Final
Initial
Final
SOP AT2O-Revision 6-Exhibit AT20. 3

Page 5 of 5
Environmental Testing Solutions. Inc.
Species: Piimepholes prornelos
Client: Rutherfordton WWTP
Date: 05-04-21
Analyst
Day
(Analyst identified for each day, performed pH, D.O. and conductivity measurements only.)
3
4
5
6
IX
Pbla_._P5•-•
`
et5
i4-4S
HI'
SC
r1S
Concentration
Parameter
CONTROL,
MHSW
pH(5.U.)
14.Qo
1.ai
3.113
-9-9
3-'3 !
e,11?jEALrz
8-a5
Dissolved oxygen (mg/L)
153
1.3
4..9
'4' aI
-1.3-
' a 1, i- s-
77
5
Conductivity(µmhos/cm)
3I.i
i3
310
?17
Alkalinity (mg CaCO,/L)
Eat
~
Hardness (mg C.CO,/L)
y.tYs�
?
8 S
-1�-0K'V'I
L
Temperature(°C)
Aak-a
1.`,.-1
1,4• 6 c
1.�`5
Zo.k.1
.0
'C,. I
1...5
11.25%
pH(5.U.)
'1%05
1.40
1./11
4.53
7. (.6,
e-49
846
&03
Dissolved oxygen (mg/L)
I O
.1.2.•
-4 At
3. 3
4.0
7. 3
4.9
-• 7
Conductivity (µmhos/cm)
310
Q�
.�OS
3e1
Temperature(°C)
1.�-i
ZA-1
"to-k•q
1..4-b
-A-1
1A. a
'K. p\
Z
Z'1.5 .
zz.5i°
rpH(s.u.)
f.t[cj
13.41
1.(4
4 50
-4-(.'3
ezr5
ea
4-9�
Dissolved oxygen (mg/L)
e.0
1. 2
•1.1
'4.7
-B
4.3
7,9
7•5-
Conductivity µmhos cm
y( /)
3os
a14
3o�t.
.z96
Temperature (°C)
'.1 a
0
i
1`1
`'l.. L
' L4-111
Z�• i
`, q
1
.l
1. .
45%
pH(5.U.)
/•St. y\
- T.�J
.y-17.
i.'3
ak,�
1.51
4 3V
S2
�p
601z)
�i4A.
5!a
-y .64
Dissolved oxygen (mg/L)
0y.0
-13
I.9
4.3
- 7 .�i
'r-.3 hers,
z i
1.6
Conductivity (µmhos/cm)
L�1
aO 1
`'-'lnrwx,
L�
Temperature(°C)
Z.-�
AA.k
li,
1-A-1
Q
\
y r7Z��pi-1
T'7
pH(5.U.)
fNo`ko9
l.1
144-
+/..•'_4•�
Y4.s'17
7--2..G
7yt..,2
-y
-�f.4s
ypZL,r•
7�• !
Dissolved oxygen
BD
+.z.
.
1•3
I. •8
7-3
'r-9
4.
72.5%
Conductivity(µmhos/cm)
2ii
a111
2
ZF
Temperature 1°C)
tia.9
lt{.!o
15- co
1` -5
1. ! _
, \'' -1
-Ls. 0
Z 1.1
pH(5.U.) x.
1.yz
-3.01,
1.25
4.08
r� �,/
41
"f -/ .6O
479
3-. 6-1
Dissolved oxygen (mg/L)
0.1
1.2...
3•9
7.3
7 6
7.9
7,
fo
Conductivity(µmhos/cm)
250
.514.
2E2-
Z61
100%
Alkalinity (mg CaCO3/L)
21
Hardness (mg CaCO,/L)
31*
Chlorine (mg/L)
Co -ID
Temperature MI
♦S,0
Zi.1
17e• o
iA-S
``Ali
-Li . n ♦
"tCi . 0
Z`,-b
,
Initial
Final
Initial
Final
Initial
Final
Initial
Final
SOP AT2O-Revision 6-Exhibit AT20.3

351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
Facility: SEUZ
Rutherfordton WWTP
Species: Pimephales promelas
Test type: Chronic Definitive
NPDES #: NC0025909 Pipe #: 001 County: Rutherford
Purchase order:
Effluent dilution: 11.25, 22.5, 45, 90, 100%
Parameter code: THP6C
Sample information: (to be completed by sample collector)
Compositc sample:
Sample location:
Start date: E7; FYI %\ Time: --cot, DVolume collected for testing:
End date: s - t Time: d \ i3Ea Number of containers filled for testing:
Number of samples per hour: Method of transport to laboratory:
Chilled during collection? a- Comments:
If chilled, specify temperature: ----4
Triple rinse sample container with 'amply before filling. Completely fill the sample container with no air space.
Pack the sample container completely in ice. The sample must be <6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collected by:
Rclinqulslied b
Pontt-SL,r40"VIk 14-95LI-S:L4
rrV
Relinquished by:
yOs.'-\
-fc\QLp
I lak and 1wne
Received by:
I4Ce. N
0810
Pit o
Received by:
s0M,°re
I'r°o 1,Nu:°ie P)ne and lime Stinl
Sample receipt information: (to be completed by ETS personnel)
Relrncluia bed to ETS by:
KALE E14%)
OS- p5rt1
05�3
Prielt
Custody seals intact?:
Yes
Nu Noi used
Samples received in good condition?: r,
Yes No
Tracking number:
Comments:
pA
Received at ETS by:
ZS‘M
Sample temperature upon receipt at ETS (°C):
o5-('s--
09,43
Eire MI Ilnu
I 3.1 '(_
Total residual chlorine upon receipt at ETS: ri ri
(DPD Presence/Absense Indicator, MDL = 0.10 mg/L)
Project number%'' Sample number: u°jD,3Uz—

351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
Facility: SEUZ
NPDES #: NC0025909 Pipe #: 001 County: Rutherford
Rutherfordton WWTP Purchase order:
Species: Pimephales promelas
Test type: Chronic Definitive
Effluent dilution: 11.25, 22.5, 45, 90, 100%
Parameter code: THP6C
Sample information: (to be completed by sample collector)
Composite sample:
Start date: i o'f a_ \ Time: c-L: OJ Ilk No. Volume collected for testing:
End date: 0 4,, i*— a 1 Time: %LIDO al ,Number of containers filled for testing:
Number of samples per hour:
Chilled during collection?
If chilled, specify temperature:
Lt
Sample location:
Method of transport to laboratory:
Comments:
Triple rinse sample container with sample before filling. Completely fill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample collected by:
riclinq NOS bed y:
t�fnr
Relinquished by:
ciOCD
now• Ana um:
Received Ly:
& c..Q
p5- s=2-1
Of 6
s,;nr.Ire
Received by:
<-1,1c an<1<<nw
['rite
tiiy<vr<<a
Oak aix.rlinty
Sample receipt information: (to be completed by ETS personnel)
Relinquished to ETS by:
Custody seals intact?:
J05-24
,),e,ni,In..
Y, Nu Nol usnl
Samples received in good condition?:
Ye< Nu
Tracking number:
Comments:
.yr
Nponinc P)ac :rvl dnu
Received at ETS by:
K-
06'054/
<r 1Due v30
✓L
Sample temperature upon receipt at ETS (°C):
I l3
Total residual chlorine upon receipt at ETS:
(DPD Presence/Abscnsc Indicator, MDL = 0 10 mg/L) I'o. nt nMem
Project numbcr:G9‘0 Sample number: ZL050S•O1

Relinquished by:
PriN
Relinquished by:
•
351 Depot Street
Asheville, NC 28801
Phone: [phone]
Fax: [phone]
_ Environmental Testing Solutions, Inc.
Whole Effluent Toxicity Chain -of -Custody Form
Facility: SEUZ
NPDES #: NC0025909 Pipe #: 001 County: Rutherford
Rutherfordton WWTP Purchase order:
Species: Pimephales promelas Effluent dilution: 11.25, 22.5, 45, 90, 100%
Test type: Chronic Definitive
Parameter code: THP6C
Sample information: (to be completed by sample collector
Composite sample:
Start date: pc. Ct.O. Time:
End date: DY 0:57-1.1 Time:
Number of samples per hour:
Chilled during collection?
If chilled, specify temperature:
0
Sample location:
Volume collected for testing:
� (! .r Number of containers filled for testing:
Method of transport to laboratory:
Comments:
Triple rinse sample container with sample before filling. Completely ill the sample container with no air space.
Pack the sample container completely in ice. The sample must be < 6.0°C upon receipt at the laboratory.
Sample custody: (to be completed by sample collector and facility personnel)
BY SIGNING BELOW, I CERTIFY THAT THE PERMIT AND TEST REQUIREMENTS IDENTIFIED ON THIS FORM ARE ACCURATE
Sample ecc&I et by:
I ,
(6"15)
C?1"...k.neure Dole soli time
ct
Received I'y:
0S- cr1•1.1
of 10
nve
Received iiY•
flik nnJ umr
:on
Ikle and wee
•
Sample receipt information: (to be completed by ETS personnel)
R eliiiquisi,cd to ETS by:
Pain —
lAk enl am
Received at ETS by:
OS-tn
1031
Pnnl
Custody seals intact?: Z/
Y. No Nm used
Samples received in good condition?: =
Ye. No
Tracking number:
Comments:
rtr
Deo MA lime
Sample temperature upon receipt at ETS (°C):
Total residual chlorine upon receipt at ETS: 11
(DPD Prom ncNAbsetve i,C. i�r�twltiL = 0J 0 mg/LI �"�'"Anv.n
Project numbeL]�jt 4 sU ample number:2,105D-_J)
1b

7-day IC25 (g/L KCI)
Environmental Testing Solutions, Inc.
0.9
0.8
0.7
0.6
1.2
1.0
0.8
0.6
0.4
Pimephales promelas
Chronic Reference Toxicant Control Chart
Source: In-house Culture
•
•
•
• •
Control Limits (± 2 Standard Deviations)
•
•
• • • ■
• • •
•
•
•
■
•
•
1 1 1 1 1 1 1 1 I 1 I 1 1 1 1 1 1 1 I I
1 1 1 1 1 1 1 1 1 1 1 r 1 1 1 1 1 1 1 1
•
•
Warning Limits
••_
• • • • • • • • •
• •
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I I 1 I
c19 319AryZOOaZ0 $102sy0 UZO -70 1:LOaLQ y.O 6'0�irIPy1-%0:1Oy10;1
.03 1Z0is oEvd-00-OOct' ot11100•0 11: 01 03'�pa 05
Test date
• 7-day IC25 = 25% inhibition concentration. An estimation of the potassium chloride concentration
which would cause a 25% reduction in Pimephales growth (calculated using ToxCalc).
Central Tendency (mean logarithmic IC25 converted to anti -logarithmic values)
Control Limits (mean logarithmic IC25 ± 2 standard deviations converted to anti -logarithmic values)
Laboratory Warning Limits (mean logarithmic IC25 ± 2 coefficent of variations converted to anti -logarithmic values)
USEPA Warning Limits (mean logarithmic IC25 ± Sn 75 converted to anti -logarithmic values,
SA 75 = 75th percentile of CVs reported nationally by USEPA)